DE2809801A1 - FLAT DESIGN CASSETTE AND CAMERA FOR YOUR RECORDING - Google Patents

Description

Eastman Kodak Company, Rochester, New York State, United States of America

Flat design cassette and camera

for their inclusion

The invention relates to a flat type cassette with essentially opaque envelope which has an exposure opening and a disk-shaped inside photographic film unit is rotatably supported. The invention also relates to a camera for receiving a cassette flat design.

Cassettes of the type mentioned are known. For example, US Pat. No. 1,410,029 describes a cartridge with opaque envelope for a photographic film unit consisting of two sheets of photographic film. The cassette casing has exposure openings in two opposite wall parts. After the exposure is finished the cassette of one disk is turned over so that the exposure of the other disk can take place. The hub exists of several disks with different diameters, the two film disks with the hub by means of a clamp together are connected. For development, the film disks must be separated from the parts of the hub, otherwise they will Collect developer solution in the hub and use it at a later time, affecting the quality of the images could flow out of this. For a feed of the film

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unit in the cassette, a camera-side mechanism must simultaneously engage in three holes near the axis of rotation. This means that this camera mechanism is set to the respective position of the three holes for each image field must become. Relatively large forces are also required for a feed. After all, the film unit is the known cassette is always freely rotatable relative to the exposure opening, which leads to unwanted exposure of the recording surface the film disc. These and other disadvantages of the known cassette have hitherto been economically exploited prevented.

It is the task of the lirfnulunü to create one who knows. can be easily handled by the operator before lying down in a camera, during exposure in the camera and after removal from the camera without the risk of unintentional exposure »

This object is achieved based on a cassette of the type mentioned according to the invention in that at Using a film unit with a film disk permanently connected to a hub, the casing of the cassette and a hub counter bearing has, in which the hub is rotatably mounted, and that the hub counter-bearing and the hub of the film unit one Form common Nabenyerriegelung that a rotation of the in a ready and end position of the film disc Prevents the hub relative to the hub counter bearing. In particular, the hub lock prevents the hub from rotating and / or after exposure of the film disk. So it is not only ensured that an operator at the Removal of the cassette from a package the film unit cannot accidentally rotate to an exposure position, but that after the exposure of the film disk is complete, a double exposure by further rotation of the film disk effectively avoided.

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In a particularly advantageous modified embodiment a cassette according to the invention is provided that when using a film unit with inextricably connected to a hub Film disk which contains image fields to be exposed imagewise or imagewise exposed on a recording surface has, the casing of the cassette has a central opening through which a positioning means on one end face supporting hub part protrudes from the inside of the cassette to the outside. These positioning means are used to position the film unit preferably with respect to its axis of rotation during a feed movement the positioning means are provided in the vicinity of the U; meanwhile the hub and can position! ervorspri'mfje have, each of which is assigned, for example, to an image field of the film unit. The image fields and the positioning projections be distributed over a main sector of the hub which is less than 360 °, while a residual sector that occupies a recess does not have a positioning projection assigned. In a modified embodiment, this recess is in the standby or End position of the film unit aligned with the exposure opening. This can lead to unintentional fogging by scattered light, caused by so-called "light piping". It is also one that runs around the hub Cover plate provided, which has an opaque lamella part, which is in the standby or If the end position of the film disk covers at least a part of the recess, then the film unit is optimally protected against incidence of light protected. Finally, for further improvement, an opaque protective element can be placed between the cassette wall and the film unit.

The invention is also based on the object of a simply and appropriately constructed camera for recording the camera according to the invention To create cassettes. Such a camera has a device that releases the hub lock of the cassette.

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device, which is preferably actuated when inserting the cassette into the camera. During insertion, a flat chamber serving as a receptacle aligns the cassette with a drive and feed mechanism such that a drive element engages the hub of the film unit located in the cassette. The drive element is a drive pulley with a central journal for the hub bore of the film unit and a coupling journal which is eccentric to this and which engages in the offset bore of the hub. This coupling pin can be chosen to be so long that it t! 1 UMg except Ii ing rill "with the locking}. ¹ , 1 iod I) wrestles, ιι.-κ hei nc r complete rotation of the l · 'i 1 mc iiihe it, however, the resilient tongue of the hub locking always in a second locking groove of the Locking member presses.

In a particularly advantageous embodiment of a camera According to the invention it is provided that the drive and feed device engages with the positioning projections bringable feed element, which during its feed movement the hub rotates through a predetermined angle, as well as a positioning element which is dependent on the feed movement can be moved into the path of movement of the positioning projections and, through temporary contact with them, the Holds the film unit in an operating position in which an image field of the film disk is aligned with the exposure opening of the cassette is. The advancing element and the positioning element can be designed as pivotable pawls and in an operating position of the film unit prior to the image-wise exposure of an image field that is assigned to this image field Clamp the positioning projection between you resiliently.

The movement of the feed element and the positioning element can be controlled in a wide variety of ways, whereby the elements themselves contribute to the control, this control

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depending on the movement of the photographic shutter of the camera, and so on.

So that the film disk is always in its end position protected against light incidence, even if the cassette is prematurely removed from the camera, it can be provided that the drive device has a reset device which always turns the film unit back into its end position. The restoring force can be provided by means of a spring, which can be tensioned during the advancing movement of the film disk and which pulls the film disk out of any intermediate slolluiij »in the fluid 1 oil 1 imp, backwards raw .

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The invention is described in detail in the following description with reference to the exemplary embodiments shown in the drawings explained. It shows:

Fig. 1 is an exploded perspective view of a photographic film unit and the therefor provided cartridge assembly according to the present invention;

Fig. 2 is a plan view of the front of the cassette of Fig. 1, with part of the outer cassette enclosure wall is removed;

Fig. 3 is a plan view of the rear of the cassette according to Fig. 1;

FIG. 4 shows an enlarged and broken away section along the line 4-4 in FIG. 2; FIG.

Fig. 5 is an enlarged view of part of Fig. 4; Figure 6 is a section along line 6-6 in Figure 4; Figure 7 is a section along line 7-7 in Figure 4;

8 shows a section corresponding to FIG. 4 with a cassette inserted in a camera, with part of a with the cassette cooperating release device of the camera, the position of the components to Beginning of use of the cassette is shown;

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Pig. 9 is a section along the line 9-9 in FIG. 4, with part of the release device shown in FIG the camera;

Fig. 10 is a section along line 10-10 in Fig. 8;

11 shows a section corresponding to FIG. 8, the position of the components in relation to one another in a later phase the use of the cassette is shown;

Fig. 12 is a section along line 12-12 in Fig. 11;

Fig. 13 is a perspective view of a photographic film unit according to the invention;

14 shows a plan view similar to FIG. 3, shown partially broken away for clarity, but with one different locking mechanism than shown in the previous figures;

FIG. 15 is a view similar to FIG. 14, but with a different locking mechanism in a different state; FIG.

16 shows a partial section through a modified cassette casing wall;

17 shows a partial section of a second modified embodiment shape of a cassette enclosure wall;

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18 shows a partial section of a third modified embodiment a cassette enclosure wall;

19 is a perspective view of a preferred embodiment a camera according to the invention, which is equipped with a cassette of the form shown in the figures can be loaded;

FIG. 20 shows a perspective view of the camera according to FIG. 19, with the camera turned upside down and reversed is arranged and a lid for receiving a cassette is opened;

FIG. 21 shows a plan view of a built-in camera according to FIG. 20 Mechanism, the elements shown showing this mechanism in their respective positions that they occupy when a cassette is inserted in the camera but the hub of the film disc is still in place is in its starting position;

22 shows the mechanism according to FIG. 21, but with this is shown in the operating position, in which certain components attack the hub of the film disc to their cause initial rotation;

23 shows the mechanism according to FIGS. 21 and 22, with the parts of the mechanism in their respective positions after completion a first switching process are shown, by means of which a cover disk of the cassette is removed from its exposure aperture pulled away and the first frame of the film disk is placed in the exposure position;

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FIG. 24 shows, in an enlarged illustration, a partial section along the line 24-24 in FIG. 21; FIG.

25 is a partial view, enlarged and shown in perspective a camera-side picture stage element;

26 shows an image stage and optical elements interacting with it of the camera shown in FIGS. 19 to 25, in FIG partially schematic sectional view;

Fitf. 27 is an enlarged view of part of FIG. 23 , with the nose of a feed pawl and the nose of a positioning pawl;

FIG. 28 shows, in an enlarged illustration, a partial section along the line 28-28 in FIG. 21; FIG.

29 shows the mechanism according to FIGS. 21 to 23, but with the one below the base plate shown in these figures arranged camera parts are shown;

FIG. 30 shows, in an enlarged illustration, a perspective view of part of the shutter release mechanism shown in FIG chanism;

31 in an enlarged and exploded view a view of the door locking mechanism of the camera of FIGS. 19-30;

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32 is a partially schematic plan view of a second embodiment of a very simple, manually operable one Film advance mechanism for a camera according to the invention;

33 shows, in an enlarged illustration, a partial view of the latch nose and adjusting nose of the mechanism according to FIG Fig. 32 with these tabs in the position they occupy in the exposure position of the film disk;

FIG. 34 shows a representation corresponding to FIG. 33, the The latch nose and the adjusting nose are each in the position that they occupy after the hub of the film disc has completed its rotation and the cover plate in turn against the sealing opening of the cassette Light incidence closes;

35 is a partially schematic view of a third embodiment an automatic film advance mechanism for a camera according to the invention, in which the Parts of this mechanism are shown in their respective positions during the insertion of the cassette into the camera;

FIG. 36 shows the door locking device contained in the mechanism according to FIG. 35 in the locked position;

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37 shows an illustration of the flap locking device corresponding to FIG. 36 in the unlocked position;

38 shows a representation corresponding to FIG. 35, the Shown is the location of the various parts, respectively, during advance and exposure the film disc, take; ·., - ■■

39 shows a further embodiment of the film unit in front of and positioning mechanism according to FIGS. 35 and 38;

40 shows a further embodiment of the mechanism according to FIGS. 35 and 38, with the parts shown in the position which they assume after completion of a film advance operation;

FIG. 41 shows a representation corresponding to FIG. 40, with however, the parts are each in the position they occupy during a film advance operation;

42 is a perspective view of a plurality of photographic images Film units carrying recordings in an arrangement suitable for projecting the recordings and

FIG. 43 shows a part of the prism arrangement shown in FIG. 42 in section; FIG.

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Various terms, such as "cassette", "cartridge" and "magazine" were previously used for film containers with unexposed! Loaded film can be inserted into cameras. For the In the following description, the term "cassette" is chosen for such a film container. Because cassettes, the structure of this Cassettes and suitable photographic cameras are known In the following, those elements are described in particular which are of particular importance for an understanding of the invention are. Devices that are not specifically shown or described here can be found in any state of the art.

Fig. 1 shows in an exploded perspective view a photographic film unit and the structure of a dedicated cassette 11 for receiving it. The photographic Film unit 17 consists of a film disk 10, a hub 12 (see FIG. 13), a cover disk 14 and a protective element 16. The housing of the cassette 11 is formed by a cassette casing 18 and a hub counter bearing 19. The cassette 11 (see also Figs. 2 and 3) are suitable for use with a camera, for example of the type shown in Figs. 19 to 31, which are described in more detail below is described.

The film disk 10 shown here has a generally round outer edge 20. Instead of the round disk, there would be in the exemplary embodiments According to the present invention, a polygonal, for example hexagonal or octagonal shape is also possible. The film disc 10 consists of a slightly flexible, but self-supporting carrier, for example made of cellulose acetate or polyethylene terephthalate, the latter under the trademark "Mylar"

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is in trade. One or more photographic emulsions are applied to one side of the support, which form a recording surface 13 form on which at least one latent image can be recorded and then photo-graphically developed. The film disk 10 has a central opening 22 in which the hub 12 is mounted, the hub and disk in one to be described Orientation to each other are arranged. The fiim disc 10 and the hub 12 remain together in an advantageous manner connected and form a unit not only during exposure in the camera, but also during development and manufacture of prints, viewing the picture and others, after exposure subsequent operations. The film unit has a first and a second surface with respect to the axis of rotation A of the Point the film inlet in opposite directions. The hub 12 that is mounted in the central opening 22 of the film disc, forms part of the two by means of their hubs facing away from one another End faces of the film unit (see Fig. 13). Both end faces of the hub can have means, as described below, for handling the film unit are described, carry or represent such means themselves.

The hub 12, which can be manufactured using suitable plastic processing techniques, has a stepped flange (See Fig. 4), a portion of which protrudes through the central opening 22 of the film disk. During the manufacturing process, the Film disk 10 and the hub 12 by means of a nose 24 on the film disk 10 initially aligned in a certain relationship to one another. The nose 24 protrudes into the central opening 22 and fits exactly in a correspondingly shaped groove 26 (see Fig. 5) of the hub

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The film disk 10 can be attached to the hub 12, for example with an adhesive, whereby the disk and the hub be connected to each other. If the hub 12 is made of a deformable material such as polystyrene, can the film disk 10 can also be attached to the hub 12 by heating and / or pressure. Fig. 5 shows a tab 28 which the groove 26 is arranged adjacent and by deformation - from its dashed position indicated in Fig. 5 - - on the Surface of the film disk 10 is pressed to lock the nose 24 in the groove 26 and clamp the disk to the hub.

Instead of the tab 28, a dashed line is shown in FIG. 5 shown way initially in the axial direction protruding edge bead used, which in the heat or ultrasonic wave. move over the entire edge of the central opening 22 of the film disk 10 is bent over, pinching the film disk and permanently connecting it to the hub. Other ridges or other means for attaching the hub to the film disk, there may be provided around the hub and the opening. It is essential that they ensure that both the fastening and the necessary one mutual permanent alignment of the hub to the film disk during will be preserved for the life of the film unit.

In another preferred embodiment, the groove 26 is part of an annular recess which "extends around the hub and opens away from the axis of rotation of the unit. The" Film disk 10 engages in a recess and is clamped or glued to the side walls there. In a process for Production of such a preferred arrangement "one assumes a"

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Hub made of a deformable material such as polystyrene, as shown substantially in Fig. 5, which, however, does not have an edge bead or tab 28. The film disk 10 is brought into the desired position and a ring is made Polystyrene positioned so that its position corresponds to the end position of the bead 28. The ring is then applied by heat, ultrasound etc. welded to the hub so that the disc is permanently in the tight, annular recess. The hub and the ring can also be made with a press fit before welding, in order to facilitate the welding process. With this construction it is unlikely that there will be developer liquid in the Deepening collects and later leads to the formation of streaks, though centrifugal force is applied during development.

An opaque cassette enclosure 18, for example made of cardboard; consists of thin plastic plates, thick plastic film or another material, has a first wall part 30 and a double-layered, second wall part 32, which consists of the side flaps F, F, F and F protruding from the first wall part 30. As will be explained in more detail in connection with FIGS. 16 to 18, at least one region of the first wall part 30 is the Wrapping of reduced material thickness. This area is at least more flexible than the second wall part 32, especially as the first wall part 30 is also formed only in one layer. When assembling the cassette, the side flaps F-F are in their final position spent and z. B. fixed with an adhesive, whereby the film unit is housed inside the cassette. Semicircular recesses 31a, 31b, 31c and 31d in the side flaps F, F, F and F

X Ci O TC

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After the flaps are folded together, they form a circular opening 34 in the middle (see FIG. 2), the diameter of which is so large that a part of the hub 12 accessible from the outside of the cassette can be accommodated therein and brought into engagement with a film advance mechanism of a camera can. When the flaps F and F are folded into position under the flap F, a rectangular opening 33 in the flap F is aligned with corresponding cutouts 35 and 35 'in the flaps F and F, respectively

As can be seen from FIGS. 2 and 3, the cassette envelope can be asymmetrically shaped Lö, z. B. by unevenly folded Corners (see 56 and 56 ') and in this way interact with a correspondingly shaped chamber in a camera, so that the cassette can only be inserted into the camera in a very specific orientation.

The first wall part 30 of the envelope preferably has a central one arranged opening 36., in which the round hub counter bearing 19 z. B. is secured by gluing. Notwithstanding this, the counter bearing 19 could also be designed in one piece with the cassette casing 18, z. B. by using known plastics processing techniques. The film unit 17 is by means of its hub 12 by a Snap locking device mounted on the hub counter bearing 19, wherein the snap locking device, which is described in the following will be described in more detail, the film unit 17 and the hub abutment 19 holds together while rotating the film unit 17 with respect to the hub counter bearing 19 is permitted.

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The cover plate 14 and the protective element 16 prevent light from reaching the photosensitive film plate 10 through the opening 33 falls when the cartridge is not inserted in a camera. The cover plate 14 consists of thin, but relatively stiff, opaque material and has a generally fan-like shape Lamellar part 40 which is so large that it covers the opening 33. Furthermore, the cover disk 14 has an annular shape Part 42 which encloses an annular shoulder 44 (FIG. 5) of the hub 12. This annular part 42 has at least one nose 46 which engages in a corresponding groove 48, what the cover disk 14 and positioned for common rotation with the film unit is held on the hub 12. The protective element 16 is opaque and can also consist of a thin plate or stiff foil. The protective element 16 has a central opening 50 which is so large and so arranged that the Shoulder 44 of the hub can protrude, as well as an exposure window 52, which is generally adapted in size and shape to the opening 33 and aligned with this opening. The protective element is designed so that it fits exactly into the cassette casing 18 and is thereby secured against rotation relative to the cassette casing 18.

If the cassette is outside of a camera, the film unit is Positioned within the cassette enclosure 18 - - by a mechanism described below - - so that the Lamellar part 40 of the cover plate 14 covers the opening 33 and the exposure window 52 of the protective element in a light-tight manner. By the arrangement

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of the lamellar part 40 between the two openings and the choice of its size _3, which exceeds the size of the aligned opening 33 and the exposure window 52, a labyrinth-like light lock is created, which practically allows access of actinic light rays through the opening 33 and the exposure window 52 to the film disk 10 excludes.

Certain materials, such as polyethylene terephthalate for Production of the emulsion carrier of the film disk, can have a light-guiding effect known under the term "light piping", d. H. transmit the incident light rays within the film, and thereby create a fog pattern on the photosensitive material η oil bsi. cause emulsion straße rs in the BoriMolien dos, which are far from the place of the light entrance. To avoid Such a concealment, the film disc 10 has a frustoconical cutout 54, which extends from the outer Edge 20 of the film disk extends inward. The section 54 has an arc length on a circular path P on which the image fields lie, which is at least as large as the arc length of one of the image fields 65 along the path P (FIG. 2). The cutout 54 and the areas of the film disk adjoining on both sides are overlaid by the lamellar part 40 of the cover disk 14. The area the film disk which is closest to the opening 33 and the exposure window 52 therefore becomes so small from the cutout 54 kept as possible, which leads to a further protection of the film disc against stray light that passes through the labyrinth-like light lock could penetrate if you z. B. exposed to a light source for a long time.

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Fig. 5 shows an enlarged partial section through the cassette. Here, the cassette parts are due to the engagement of Hub 12 and hub counter bearing 19 held together. The hub counter bearing 19 is in the round opening 36 in the first wall part 30 the casing arranged and has a generally round base part 38 with a circumferential flange 41 on which the to the Opening 36 adjacent inner edge of the first wall part 30 is and is fixed with an adhesive. A nose 37 (see Fig. 1) of the first wall part 30 cooperates with a groove 39 of the hub counter-bearing 19 to the bearing 19 during the manufacturing process provisionally align. A cylindrical wall 57 protruding from the base H 38 has on its radial circumferential surface an annular groove 58 which runs around the circumference of the wall 57. At its free end, the cylindrical wall 57 is frustoconical Surface 60 is provided, as can be seen from FIG. If the hub counter bearing 19 and the hub 12 are connected to one another, Thus, the cylindrical wall 57 projects telescopically into the area of a cylindrical wall 61 of the hub 12. Along the wall a plurality of locking elements 59 extending radially inward are provided, each of which has an inclined control surface 62 owns. During assembly, the wall and wall 61 are moved by sliding the inclined control surface 62 on the frustoconical surface 60 telescopically engaged with each other. The resulting wedge effect leads to that the walls 57 and / or 61 bend slightly so that the locking elements 59 can slide axially along the wall 57 until they Snap into the annular groove 58. The annular groove 58 and the locking

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elements 59 form a reliable snap connection, a telescopic axial play between the hub 12 and the hub counter bearing 19 and a rotation of the hub relative to the hub counter bearing. In addition, the walls 57 and 61 work together to form a labyrinthine light lock form; in this way it is avoided that the film disk 10 is obscured by rays of light that pass through one of the various by the walls 57, 61 surrounded openings in the hub or the hub counter bearing can penetrate. An annular shoulder of the hub counter-bearing 19 works with a shoulder up 64 at the lower end of the W; ind iil together that an additional labyrinthine A light lock is created that prevents the film disc from being obscured.

When the photographic processing film unit is removed from the cassette, the hub 12 can be disengaged from its abutment 19 by inserting a suitable, for example, wedge-shaped probe into the holes 55, each of which is one of the locking elements 59 are assigned. The holes 55 also facilitate the injection molding of the locking elements. When the probe is inserted, the wall 57 and / or the hub 12 bend and the locking elements 59 are released from the annular groove 58 and the hub and its counter bearing disengage. To pull out the film unit, the cassette cover 18 open by slitting or tearing open. Prior to development, the cover disk 14, which is not permanently attached to the hub 12, is used and has served its function once the film unit is removed from the cassette, removed from the hub 12 and discarded. In order to eliminates "the risk of photographic developer solution accumulating between the cover disk and the film disk 10 during development. Similarly, the protective element 16, which is only

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is loosely held on the hub 12, peeled from the film unit and discarded. To remove the cover plate 14 and the Protective elements 16 from the hub to facilitate weakening of the material, Perforation lines or the like. Be provided.

Photographic images can be recorded on the film disk 10 in the form of a plurality of image fields 65 (see FIG. 2) which are arranged at a distance from one another along the circular path P concentric with the axis of rotation A of the film unit. The axis of rotation A runs through the center of a central hub bore of the hub 12 (wiche Fig. 2). The circular beam I ¹ lies between the outer edge of the hub 12 and the outer edge 20 of the film disk. The image fields 65 are preferably surrounded by an edge region 67 which was photographically pre-exposed before the exposure of the image fields 65, for example by "flashing" using a mask. Such a pre-exposure can be carried out during the manufacture of the cassette. In conjunction with the positioning means described below, it is ensured that the latent images that are created by exposure in a camera on the photosensitive recording surface 13 of the film disk, if at all, then only lie at predetermined locations, ie in the area of the image fields 65 of the film disk .

To an image field 65 for the exposure in a camera or in the window of a printer, a viewing device or the like. Exactly To position, the hub 12 has a plurality of generally radially extending positioning projections 114 along a generally circular balls on the outside of the hub 12

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are arranged. The number of projections 114 corresponds to the number of image fields 65. For clarity, ten are in the drawing Projections 114 shown spaced 30 apart, with a. open arc of 90 is radially aligned with the cutout 54. Each Image field 65 is arranged at the same predetermined distance from a corresponding positioning projection 114 as the corresponding ones Image fields 65 to their corresponding protrusions 114; this ratio is preferably maintained in all film units of the type described herein. By "precise positioning the projections 114 on the hub 12 in a certain ratio to the respective image field 65, can be a certain image field thereby adjust exactly that its corresponding positioning projection 114 is detected and positioned by mechanical means. Since these positioning projections 114, for example, in contrast to simple film perforation as commonly used in conventional film metering and positioning arrangements, are relatively durable and dimensionally stable, the film unit can be reliably positioned again and again, which is after the exposure positioning operations taking place z. B. when copying and viewing relieved.

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So that the camera user can see which of the various image fields is aligned with the exposure aperture, as can be seen from Figs. 3 and 5, a picture numbering system intended. Fig. 3 shows a series of holes 120 in the hub counter bearing 19, which are spaced from one another on one with the Axis of rotation A concentric circular path arranged at the same angle are like the image fields 65 on their path P. Each hole 120 has an associated image field identification number 122, which is located on the hub counter bearing 19 and, as can be seen from FIG. 3, in each case one of the image fields 65 assigned. An L-shaped ramp 124 which is arranged on the hub 12 in a certain position relative to the image fields 65 is, has a surface 126 which faces the hub counter bearing 19 and is located in the area of the holes 120 in the hub counter bearing 19 is located. The surface 126 is preferably coated with a clearly visible, light reflective material. If the hub 12 is indexed further, the surface 126 successively moves into the area of successive ones Holes 120 and is through a see-through window 536 (Fig. 20) visible to the camera user so that he knows which one Image field is ready for exposure.

Is the cassette not in a camera or other light-tight Apparatus employed, as can easily be seen, rotation of the film unit would result in at least those image fields would be exposed which would be rotated past the opening 33, and that the adjacent image fields might be veiled. In addition, if the film unit were rotated more than once, at least one of the image fields is exposed twice. Therefore, there is a particularly advantageous feature of the present cassette ' construction in it, a hub locking device built entirely into the cassette to be provided with two modes of action. In one mode of operation, the rotation of the film unit is in front

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the insertion of the cassette in a camera prevented, wherein means cooperating with the camera are provided to the Release the film unit for rotation during or after insertion. The other mode of operation is the rotation of the film unit prevented by more than a full turn, and also when reinserting an already exposed cassette in the The camera cannot release this lock.

Figures 4 and 8 show the hub locking device in an initial locking position in which rotation of the hub before inserting the cartridge into a camera. The hub counter bearing 19 has an elongated, flexible locking tongue 128, one end of which is attached to the üegenlagcr 19 is. The other, free end 129 of the tongue 128 is arranged so that it connects to a double-acting locking member 130 the hub 12 engages. Before the cassette is inserted into a camera, the free end 129 of the locking tongue 128 lies (as indicated in FIGS. 4 and 10) in a first locking groove 132 on the underside of the locking member 130. The initial Latching of the free end 129 of the locking tongue in the first locking groove 132 prevents rotation of the Hub 12 relative to the hub counter bearing 19. Since the locking device during the manufacture of the cassette in the initial Locked position is brought, can be an unintentional rotation of the film unit with the risk of unintentional Avoid exposure before inserting the cartridge into a camera. When inserting the cassette into the camera 501 penetrates a coupling pin 533 of sufficient length a bore 118 in the hub 12 and comes with a protrusion 134 on the surface of the locking tongue facing it 128 in contact (see also FIG. 9). Because of this contact with the pin 533, the locking tongue 128 flexes downward (see FIGS. 8 and 9), its free end 129 detaches from the first locking groove 132 and the hub 12 becomes rotatable

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Released relative to the hub counter bearing 19. When the hub 12 is rotated, the coupling pin 533 slides off the projection 134 and the free end 129 of the locking tongue moves on one of the downwardly inclined control surfaces 133 or 135 the locking member 130 along until it, depending on the direction of rotation of the hub, after passing the tip 136 or 138 one of the pointed tapering control elements 140 or 142 of the locking member 130 slides from this and into a neutral shown in FIG Position snaps back upwards. Since the hub 12 on the hub counter bearing 19 clockwise and counterclockwise is rotatably mounted, and since the locking member 130 is symmetrical is built up, the NaI) C 12 can after lintricgclung in both Direction rotated and, as described below, independent can also be locked again by the direction of rotation.

Notwithstanding this, the locking tongue 128 can also loosen from the first locking groove 132 if the axis 532 of a camera (Fig. 20) is formed somewhat differently. With such a The arrangement (not shown) penetrates an axis which is correspondingly longer than the axis 532 shown in FIG. 20, the central hub bore 116 so far that it comes into contact with the locking tongue 128 and this tongue downwards until its free end 129 is released from the first locking groove 132. Since the axis 5 32 with the axis of rotation A of the hub coincides, pushes an extended axis, as described above, constantly on the tongue 128. With such an arrangement, the length of the axis must be carefully chosen in order to prevent the free end 129 of the locking tongue 128 from being released under the tips 136, 138 of the tapered controls 140, 142 is pressed.

Let us now return to the description of the illustrated embodiment. When the hub is the end of the first full Approaching one revolution, the locking tongue 128 engages again

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into the locking member 130. How, however, from the various In the positions shown in Fig. 6 can be seen, the locking tongue 128 meets, after being released by the coupling pin and the locking member upwards into its neutral position is snapped, depending on the direction of rotation on one of the upwardly facing control surfaces 144 or 146 of the locking member 130. By further rotation, the free end 129 is combed away upwards and brought into engagement with a second locking groove 148, which, as can be seen from FIGS. 11 and 12, is located in the upper part of the locking member 130. Like Fig. 11 too shows, the locking tongue 128 remains after it through the movement of one of the surfaces 144, 14G past its neutral S to 11 »an Ii i naus has been bent upwards in the two tone Locking groove 148 engaged and cannot be released. The coupling pin 533 can now not perform its unlocking function, since, despite its pressure on the projection 134, it only exerts a downward force that the free end presses into the upper second locking groove 148 and the locking tongue cannot loosen from the second locking groove 148. When the hub 12 has reached its final locking position, is a Rotation relative to the hub counter bearing 19 is no longer possible, even if the finally locked cassette is out of the camera is removed and reinserted into this. Since the fan-shaped lamellar part 40 of the cover plate 14 is a final locked the cassette, the exposure window 52 light-tight covers, the latent images recorded on the film disc 10 are protected until the film unit is ready for development is removed from the cassette.

14 and 15 show a modified embodiment of a Device for the initial and final locking of the hub 12 and the hub counter bearing 19. The hub counter bearing 19 has a first flexible locking element 190 having a support surface 193 which is attached to a corresponding support surface

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engages the hub to rotate the hub counterclockwise to prevent. After inserting the cassette in a camera, the coupling pin 533 moves the camera first locking element 190 axially to release the support surfaces 193 and 194 from mutual engagement, so that a Counterclockwise rotation is possible.

A second flexible locking element 191 on the hub abutment has a protrusion 195 which initially abuts a surface 19 8 of a stop 192 on the hub to first to prevent the hub from rotating clockwise. If the hub is released from the first locking element 190, so it is rotated counterclockwise by the camera, the stop 192 from a surface 199 of the second locking element 191 slides and thereby this element bends into the position shown in Fig. 14 in dashed lines. the The camera rotates the hub through 360 ° until the stop 19 engages in a slot 196 in the second locking element 191 (see Fig. 15). During the last phase of the permissible rotation, the stop 192 presses against the radial one Inner surface of the second locking element 191, which bends and thereby successively those in Fig. 15 in broken through Positions shown in the lines until the locking element jumps radially inward and the slot 196 includes stop 192. As soon as the stop 192 comes to rest in the slot 196, the hub and hub counter-bearing are permanent and finally locked.

In the case of a film feed device of a camera described in more detail below, the film unit is rotated through an angle, which is so large that all image fields are aligned one after the other to the exposure opening of the cassette, the angle but does not correspond to a full revolution. The direction of rotation of the film unit is then reversed, and the unit

809837/0834

returns to its original position. The locking devices described here are of course also suitable for such a device alternative Kämera design suitable. Since, as mentioned above, the locking member 130 tapers symmetrically on both sides, d. H. Since the control elements 140 and 142 point in different directions, the locking tongue 128 can be the upper one Approach second locking groove 148 and engage by engaging one of the upwardly directed control surfaces 144 or 146 moved up. This guarantees a final lock, regardless of whether the final lock is used leading direction of rotation is the same or opposite to the direction of rotation that leads to unlocking.

In the embodiment according to FIGS. 14 and 15, the radially outwardly curved projection 19 7 ensures that when the stop 192 approaches clockwise, the locking element is pushed outward until the stop 192 in the Slot 196 engages and the locking element 191 springs back at this moment.

According to an important feature, means are provided for visually indicating that the cassette is in the final locked position is located so that there is no confusion and the camera user does not try to use an already exposed Insert the cassette into the camera again. In the embodiment of FIGS. 1 to 12, a core hole 150 allows located in the hub 12 and mounted over the locking member 130, a visual view of the free end 129 of the Locking tongue 12 8 when this in the upper second locking groove 148 is engaged. If one provides the upper surface of the end 129 of the locking tongue 128 with a 'clearly visible, light-reflecting layer, and one sees a notice with corresponding information near the core hole 150 before, the appearance of the colored free end 129 of the.

809837/0834

Locking tongue 128 in the core hole 150 the camera user remind you that the film unit is fully exposed.

In the arrangement according to FIGS. 14 and 15, the visual display takes place, that the cassette is in the final locked position is located, with the help of a flag, which by the radial deflection of the locking element 191 to the outside under the controlling influence of the stop 192 is moved upwards.

Another important feature of the present cartridge is the film disk 10 with respect to the focal plane position of the camera more precisely. Such precise positioning is made possible by a very close connection between film and camera is achieved by keeping the cassette parts between the film disk and the camera as small as possible holds or at least closely monitors its dimensions. As will be described in more detail below, at least immediately before and during the exposure, the first wall part 30 of the cassette in the area of the exposure station of the camera 501 in contact with a spring-loaded pressure plate 5 38 (Fig. 26). The first wall part 30 has at least in comparison a reduced material thickness compared to the double-layer second wall part 32 and is therefore flexible at least in the area which lies between the pressure plate 538 and the film disk 10. A rectangular picture stage 535 is in shape and size Size selected such that it passes through the opening 33 and the exposure window 52 of the cassette protrudes and comes to rest directly on the recording surface 13 of the film disc 10. In in this position, images can be recorded on the film. Since the material thickness of the first wall part 30 of the cassette is reduced in the area in which it rests against the pressure plate 538, the image field ready for exposure is 65 of the film disk 10 is certainly pressed by the pressure plate 5 38 against the image stage 535 and thus exactly in the focal plane held.

809837/0834

16 to 18 show various embodiments in section of the first wall part of the cassette in an area which is opposite to the rectangular opening 33. The first part of the wall is made of relatively rigid plastic in each of the three examples to protect the film unit and has a recess 180, which is overlaid by a component that enables the better transmission of the force of the pressure plate 538 to the film unit serves. 16 shows a thin, flexible strip 181 of opaque plastic overlying the recess 180 arranged and connected to the wall at the edge is. 17 shows a wall section 182 which is formed in one piece with the first opaque wall part 30 and has a reduced Material thickness, which has a bead 185 to the To facilitate shifting of the middle section 182. Fig. 18 finally, a thick plastic insert 183 shown in FIG the recess 180 from a thin, opaque, flexible strip 184, which is connected to the first wall part 30 near the edge of the recess.

In the cameras described in more detail below, you can press a movable pressure relief finger 541 the pressure plate 538 at least immediately before and during the exposure the. Press the film disc against the picture stage 535 and at least at the moment the film disk is moved relative to the image stage 535, out of engagement with the film disk being held. In this way, an inevitable contact between the film disc and the picture stage is always avoided when they move relative to each other. If such contact took place during movement, it could photosensitive material of the recording surface 13 are damaged.

The cassette can also be constructed (not shown) in such a way that the exposure window 52 in the protective element 16 is approximately

809837/0834

has the same size as an image field 65. With such an arrangement the picture stage 5 35 does not protrude through the exposure window 52, but only through the opening 33 and lies on the Edges of the protective element 16, which the exposure window 52 surrounded. Since the protective element 16 is preferably made of a thin, flat plate or film of relatively uniform thickness exists, the image field 65 to be exposed can be precisely positioned with respect to the image stage 535, although the image stage 535 does not lie directly on the film disk 10.

In Fig. 19, a camera 501 is shown in its position of use, whose front wall part 502 is provided with an objective 503, a viewfinder lens 504 and a window 505 which a photosensitive member of an automatic exposure control device assigned. In the upper wall part 507 of the Kaineragehäusos 508 is a rectangular trigger button 506 attached, which terminates with the upper wall part 507 substantially flush. In Fig. 20, the camera 501 takes a pose one in which, starting from its position in Fig. 19, it stands on its head and has also been reversed so that now its rear Wall part 509 is visible. A flap 511, shown in the open state in FIG. 20, is attached by means of hinges 512 hinged to the camera body. In the closed state, the camera housing is closed light-tight by this flap 511, which is held in this position by a ratchet device, which is controlled by a sliding locking handle is releasable, which is in the vicinity of a rear viewfinder lens 514 rear wall part 509 is attached. A handle 515, partially visible in FIG. 20, of a pivotable, lever-shaped handle The film advance element essentially closes with the camera body flush when the film is not being transported. From the two Figs. 19 and 20 it can be seen that the camera is very compact, formally appealing and advantageously built and in a remarkable way Is free of protruding elements which can be annoying when the camera is carried in a shirt pocket or the like could prove.

809837/0834

280980!

Since in Figs. 21 to 31, the camera mechanism is always in the same orientation as shown in Fig. 20, relative position designations refer to above and below as used for description of the figures would all be used in this upside-down arrangement. So is for example with regard to 20 the cassette 11 arranged above the camera 501.

As best seen in Figure 20, the interior of the camera housing 508 presents a shallow chamber 516 which is the same has an asymmetrical shape like the cassette casing and which has a circular recess 517 in the middle for receiving it the hub 12 of the film disc possesses. The camera housing 508 has side walls 518 and 519 and an end wall 521 of the chamber 516, while an end wall 522 and diagonal corner pieces 52 3 to 526 are secured by a cover plate 52 7 fastened by means of screws 128 are formed. Through a circular central opening 529 in the cover plate 527 is a rotatable, circular drive pulley 531 visible, which is mounted on a fixed axis 532 for the cassette hub. The drive pulley 531 is in turn provided with a coupling pin 533, which is in the Fig. 8, 9 and 11 shown coupling pin 96 corresponds. In a rectangular opening 5 34 of the cover plate 52 7, a rectangular picture stage 5 35 is housed, which is slightly over the adjacent flat side of the cover plate 52 7 protrudes. When the cassette is mounted in chamber 516, then take it

(a) the hub bore 116 of the hub 12 the end of the axle 5 32,

(b) the coupling pin 533 enters the bore 118 of the hub, and (c) the image stage is inserted into the rectangular exposure port 33 of the cassette. Because of the asymmetrical In the shape of the cassette and the correspondingly designed chamber 516, the cassette can only be inserted into the chamber 516 in this orientation be inserted. When the flap 511 is closed after the cassette 11 has been inserted, there is a see-through window 5 36 on the hub counter bearing 19 of the cassette and holds the hub 12

809837/0834

280980

in contact with drive pulley 531. One with the camera door 511 one-piece annular shoulder 5 37 encloses the hub counter bearing 19 of the cassette and thus forms a light protection.

A rectangular pressure plate 5 38 is attached to the flap by two spring arms 5 39 and by these arms in one of the flap is biased away from the direction. When the flap is closed, the pressure plate 538 is aligned with the picture stage 5 35, however, by locking a tongue 540 attached to the pressure plate 538 with a pressure relief bearing 54 1 except JiingrilT held with the film cassette, ugly Finger 541 protrudes through an opening 542 of the cover plate 527 made in the immediate vicinity of the picture stage 535.

21 to 23 show a base plate 543 preferably made of relatively heavy sheet metal. This plate is in Camera housing mounted immovably under the cover plate 52 7, which by a spacer (not shown) in a small Distance above the base plate 543 is maintained. For example, the screws 52 8 can pass through the cover plate 52 7 through washers and holes in base plate 543, one hole 544 of which is shown, into threaded ones Extending protrusions that are molded onto the camera housing 508. The base plate 543 carries the most important mechanical and optical camera parts in the form of a single assembly, which facilitates assembly and maintenance of the camera and a stable arrangement of these parts relative to one another is guaranteed.

The axle 532 shown in detail in FIG. 24 is non-detachably attached to the base plate 543 with its riveted collar 545 and serves for the rotatable mounting of the circular drive disk 531 and a film advance element 546. The axis 532 fits

809837/0834

280980

with its upper end exactly in the hub bore 116 of the hub 12 of the film cassette and thus forms exactly the axis of rotation of the Film disk 10. With the cassette in the camera and its hub 12 engaged with the axle 532, so The film carrier 535 extends through the exposure opening 33 of the cassette enclosure and lies on the surface of the sector-shaped Lamellar part 40 of the cover plate 14. If this lamellar part 40 is rotated so that it no longer faces the opening 33 the cassette casing is aligned, then the exposure window 52 of the protective element 16 can surround the image stage 535 iefien, the latter being the limulsion side of the Ii Ims ehe i be 10 touches just outside the circumference of an image field area and serves as a carrier.

809837/0834

The picture stage 535 is formed in one piece with a picture stage support 547, which can best be seen in FIGS. 25 and 26, which is fastened to the base plate 543 by means of screws 548, the platform extending upwards through the in the cover plate 52 7 attached opening 5 34 extends. The picture stage 535 is suspended from the rest of the stage support part, so that between the stage 5 35 and the base plate 543 a passage 549 for receiving shutter slats 551 and 552 of the camera shutter is formed. A rectangular opening 553 made in the picture stage is open in shape an opening 554 of the same configuration arranged in the base plate 543, with these openings 553 and 554 are slightly larger than the fixed image fields of the film disc 10. To swivel or bend the To avoid the picture stage 5 35, a support projection 555 on the otherwise free end of the stage 5 35 is outside the movement path the shutter blades 551 and 552 attached and rests on a support 556 of the base plate 543. Below the openings 553 and 554 is a prism 557 by means of a prism holder 558 firmly connected to the base plate 543 and thereby optically aligned with the lens 503 of the camera, which is also preferably supported either on the picture stage support 547 or the base plate 543. The axis of the objective 503 runs essentially parallel to the plane of the cassette. The prism 55 7 or a corresponding mirror bends the beam path by an angle of 90, so that the focal plane of the objective 503 coincides with the predetermined flat film plane through the flat upper film-contacting plane Surface 559 of the picture stage 135 is limited. With each exposure of the recording surface 13 of the film disk 10 lies the pressure plate 538 resiliently against the flexible cassette casing and presses the area of the film disc assigned to it 10 against the surface 559 of the film carrier 535, so that the image field 65 exactly in the area delimited by this surface 559

809837/0834

th level lies. Alternatively, the exposure window 52 of the protective element 16 could be smaller than that arranged in the envelope Be opening 33, and the surface 559 of the film carrier 535 could be the area of the protective element surrounding the exposure window 52 16 touch, the thickness of the protective element 16 would have to be chosen so that a coincidence of the film plane and the focal plane of the lens would be reached.

The only mirror surface in the beam path creates a reversed one Image that can be corrected for projection or copying purposes by either developing the Turns the film disc in the projector or printer or in the projection beam path of such a device also a single one attaching reflective element. Fig. 29 shows the various lenses of the viewfinder except for the front viewfinder lens 504, all of which run along an underneath the base plate and essentially parallel to the axis of the objective 403 Finder axis 561 are arranged. To produce a single lens reflex camera construction you can use either the reflective surface of the prism 557 partially translucent be designed and aligned on the axis of suitable finder elements or instead of this prism can be a movable one Mirrors are attached, a measure that is readily known to a person skilled in the art.

As can best be seen from FIGS. 21 and 24, the round drive pulley 531 has a gear 562 on its underside which is in engagement with a toothing 563 of a sector element 564, which is pivotable by means of a pivot pin 565 is mounted on the base plate 543 so that it is between two stationary stops 566 and 567 on an arcuate ' Train can move. The sector element 564 is counterclockwise by a relatively strong leg spring 568 biased. If no film cassette is inserted in the camera, this leg spring 568 presses, as FIG. 21 shows, the sector element 564 against the stop 566. Accordingly

809837/0834

is the coupling pin attached to the drive disk 531 533 so. positioned so that it engages in the bore 118 of the camera when a cassette is inserted. An arch-shaped one Locking teeth 569 of the sector element 564 can be released by means of a leg spring 572 which is under the action of a leg spring The pawl 571 can be locked so as to limit the counterclockwise rotation of the hub 12 of the film disk.

The film advance member 546 has an arm 573 which extends through a slot 574 in the side wall 519 of the camera body 508 extends. A nose 5 76 protrudes from the arm 573 downward through a curved l'uniii sufficient Ι · "ΠΙι rungssch Ijtz 577 in the (! Round plate 543 through and is on a relatively strong helical spring 578 attached which the advancing element 546 counterclockwise in the position shown in FIG. 21, in which the arm 573 rests against the end 579 of the slot 574. With the handle 515 disposed at the end of the arm 5 73, a photographer can manually move the film advance member 546 by one Rotate an angle of slightly more than 45 ° into the position shown in FIG. 22. This rotary movement is due to the stop of the arm 573 at the opposite end 581 of the slot 574 limited.

A feed pawl 582 is pivotably mounted by means of a pin 583 extending through a guide slot 584. A coil spring 585 connects the advance pawl 582 to the film advance element 546 and biases the pawl 582 in the position shown in FIG. In this position, the pawl 582 lies on the one arranged on the advancing element 546 Pin 586, the end of the slot 584, which is located approximately in the middle of the arcuate course of the Pawl 582 is located, with the pin 583 comes into contact. In the position of the film advancing element shown in FIG 546 is a pawl nose 587 attached to the feed pawl 582, adjacent to the image stage 535, in the vicinity of the center

809837/0834

28Ü98Ü1 HT

te of the 90 comprehensive sector of the hub of the film disk, which sector does not have any positioning projections (in FIGS. 21 to indicated by dash-dotted lines). When the photographer pushes the feed element 546 from the position shown in FIG. 21 to the position shown in FIG. 22, the latch nose 587 moves via an arcuate path that coincides with the path of movement of the positioning projections 114 of the hub 12 matches. When through this movement brings an inclined control surface 588 of the pawl nose 587 into contact with the positioning projection 114a of the hub, what corresponds to the first available field of view on the screen is prevented by the engagement of the pawl 571 with the sector element 564 that the pawl nose 58 7 rotates the hub 12 clockwise. The pawl nose 587 moves therefore against the biasing force of the helical spring 585 past the positioning projection 114a into the one shown in FIG. 22 Location.

A positioning pawl 589 is by means of an eccentric pivot 591 mounted pivotably on the base plate 543 and biased counterclockwise by a torsion spring 592. On an arm 593 of the positioning pawl 589, an adjusting lug 594 is attached, which can be seen in FIGS. 21 and 23 Position of the feed pawl 582 adjacent to the pawl nose 587 is located. As can be seen primarily from FIG. 27, is located the adjusting lug 594 is below the pawl lug 58 7, and an upwardly bent projection 595 on the positioning pawl comes into engagement with the adjacent edge of the feed pawl 582 and thus determines the position of the positioning pawl 589, when the film advance member 546 is in the position shown in FIGS. 21, 23 and 27. A second arm 596 of the Positioning pawl 589 has a control surface 597 which is connected to a control pin arranged on the film advance element 546 598 can be locked. When the advancing element 546 is in its starting position shown in FIG Engaging connection between the control pin 598 and the control

809837/0834

- «« ■ - 2803801

Hi

erflache 59 7 canceled and the positioning lug 594 arranged so that that it falls into the positioning projection 114a during the rotational movement of the cartridge hub 12. With every shift of the film advance element 546 by more than about 10 ° from its original position, however, is due to the interaction between of the control surface 597 and the control pin 598, the positioning pawl 589 is pivoted into the position shown in FIG the adjusting lug 594 is moved beyond the path of movement of the positioning projections 114 of the hub 12.

Reverses the film feed member 546 under the action of the coil spring 578 from the in ^I: ig. 22 into the position shown in FIG. 21, the radially extending surface 599 of the pawl nose 58 7 engages with the positioning projection 114a and thereby pivots the hub 12 of the film disk and the drive disk 531 against the force of the torsion spring 568 Clockwise. During the last part of the movement of the feed element 546 in its starting position, the control pin 598 disengages from the control surface 597 of the positioning pawl 589 and the adjusting lug 594 is moved back into the path of the positioning projection 114a, which is connected to this adjusting lug 594, under the action of the torsion spring 592 comes into plant. As can be seen from FIG. 23, the positioning projection 114a comes to rest against the adjusting lug 594 shortly before the helical spring 578 has brought the arm 5 73 of the film advance element 546 into contact with the end 579 of the slot 5 74. Since the helical spring 578 is stronger than the helical spring 585, the feed pawl 582 is displaced slightly in the longitudinal direction relative to the feed element 546 against the force of the helical spring 585. As a result, the positioning projection 114a is resiliently clamped by the pawl nose 587 against the radially extending surface 201 of the adjusting nose 594. The switching accuracy with which the image field is positioned in the exposure position depends solely on the accuracy with which the hub

809837/0834

Bore 116 in the hub 12 fits into the axis 532, as well as the position of the adjusting lug 594. To the manufacture of the camera For convenience, the eccentric pivot 591 shown in detail in FIG. 28 is at the location indicated at 202 riveted to the base plate 543, but can nevertheless be rotated by means of a slot 203. The cylindrical Support surface 204 of pivot 591, which extends through an intermediate ring 205 and a through hole 206 in the positioning pawl 589 is arranged slightly eccentrically with respect to the axis of the pivot shaft 207, whereby adjustment of the adjusting lug 594 is possible during manufacture. After the adjustment has been made, the accuracy is of the device ensured that the axis 532, the pivot 591, the picture stage support 547, as well as the The objective 503 and the prism 557 are all rigidly connected to the base plate 543 formed in one piece.

After exposing the first frame, a second reciprocating motion of the film advance member 546 brings the pawl nose 587 engages with the positioning projection 114b of the hub and rotates the hub 12 so that this projection 114b engages with the adjusting lug 594. As already described, the interaction between the control surface takes place 597 and control pin 598 not only release the adjusting lug 594 from the positioning projection 114a before the feed pawl 582 initiates the counterclockwise rotation of the hub 12, but also a return of the adjusting lug 594 to its working position, before the next positioning projection 114b reaches its switching position. After the film disc 10 ten times has been advanced and the last image field has been brought into its exposure position, the is not provided with positioning projections, 90 ° comprehensive sector of the hub 12 clockwise in front of the pawl nose 587, so that the The arc-shaped path covered by this nose 587 is not sufficient to again meet the positioning projection 114a.

809837/0834

rest. Consequently, there is further reciprocation of the film advancing member 546 without any effect on the position of the film disk 10, which is also determined by the application of the sector element 564 on the stop 56 7 can no longer move counterclockwise.

If the film disc 10 should jam with the cassette casing during the switching operations described above, so is by the spring-loaded, through the pin 583 and the guide slot 584 come about connection between The feed pawl 582 and feed element 546 prevent the photographer from trying to move the feed element 546 into its off-KηηKsLage to spend, the Kämera mechanism damaged.

Due to the selected distances between the positioning projections 114 of the hub, the must during the first switching process Film advance member 546 are moved back and forth through an angle which is slightly greater than 45 °, while in the subsequent switching operations, the feed element 546 can only be moved by an angle of slightly more than 30 ° got to. As will be explained in more detail below, however, it is necessary for locking the clamping that the advancing element 546 with each Advance of the film disk 10 is moved back and forth through its maximum angle. To achieve such a maximum movement of the To ensure feed element 546, a driver 208, which can be seen in FIGS. 22 and 23, is located on the pivot pin 565 below of the sector element 564 is rotatably supported and is fastened by a wire spring 209 which is fastened in a slot of the driver 208 and moves freely between pins 211, held under bias in the central position shown. As the film advance member 546 moves from its position shown in Fig. 21 to the position shown in Fig. 22, arrives an arcuate locking toothing 212 along the adjacent edge of the feed element 546 with a

809837/0834

28098Q

- A4 -

Projection 213 of the driver 208 in engagement, so that the driver 208 is rotated counterclockwise when these locking teeth are in the manner of a locking mechanism on the driver projection 213 moved past. Once the clockwise movement of the advancing element 546 has been initiated, then so only move this element 546 again in the opposite direction when it is the one shown in FIG Has reached position in which an arcuate recess 214 of the feed element 546 on the driver projection is aligned and it allows the driver 208 to assume its central position shown again. During the following Return movement of the advancing element 540, the driver 208 functions in the same way when it is through the locking teeth 212 is moved clockwise. Has the feed element 546 reaches its starting position, an arcuate recess 215 is aligned with the driver 208, which thus resumes its central location.

The photographic shutter mechanism shown in detail in FIG the camera is provided with an opening blade and a closing blade 217, both of which are made of thin Consist of sheet steel. As shown in Fig. 24, these two slats 216, 217 are below the base plate 543 between Intermediate rings 218 pivotably mounted on the lower end shaft 219 of the axle 532 and are secured by means of a snap ring held on this shaft. Two coil springs 222 and 223 (see Fig. 29) hold the opening lamella 216 and the Closing lamella 217 biased counterclockwise. The opening lamella 216 and the closing lamella 217 are with arms 224 and 225 provided, on which upwardly curved guide tabs 226 and 227 are attached, which are through corresponding Arcuate guide slots 228 and 229 extend in the base plate 543 (see FIGS. 21 to 23). The opening slat 551 and the closing lamella 552, which are attached to the lamellae

809837/0834

280380 i 5α

lenarmen 224 and 225 are arranged, run parallel to Base plate 543 and are aligned with the shutter blade passage 549 located below the film carrier 535.

In FIG. 21 the camera is shown with the shutter released, the opening lamella 551 the closing lamella 552 being slightly overlaps, and the latter covers the rectangular opening 553 of the picture stage 535. The camera is in this state Position of the opening lamella 216 through the engagement of its upwardly bent guide tab 226 with the adjacent end of the baseplate guide slot 228, and the location of the Sch IicßinmclJe 217 by the attachment of its arm 225 to one IKiclv downward curved stop 2 33 of the opening lamella 216 determined (see Fig. 29). When the film advance element 546 is rotated clockwise, an edge 234 of this advance element comes into play 546 engages with the upwardly bent guide tab 226 of the opening lamella 216 and moves both Slats 552, 553 together in a clockwise direction.

If by the movement of the shutter blades 216, 217 clockwise the opening lamella 551 has been aligned with the film stage opening 553, as in Fig. 29 with solid lines shown, so is a locking lug 235 of the opening lamella 216 in engagement with a first pawl 236, the pivotally attached to the base plate 543 by means of a pivot 237 and clockwise by means of a torsion spring 238 is biased. A second pawl 239 which is pivotally attached to the base plate 543 by means of a pivot 241 and is biased clockwise by a leg spring 242, is similarly provided with a locking tab the closing lamella 217 in engagement. Thus, the two shutter blades 216, 217 are in their respective tensioned position is held when the film advance member 546 returns to its original position to effect the film advance and shutter tensioning operations to end.

809837 / 083Ä

As can also be seen from FIG. 29, a tab 244 of the arm 225 of the closing blade 217 is in engagement with the adjacent end surface of an electromagnet 245 when the shutter is cocked. This electromagnet 245 is attached to a bearing element 246, which is pivotably mounted on the base plate 543 by means of a rivet 247 and is tensioned counterclockwise by a helical spring 248 so that it can move over a short arcuate path which is limited by a stationary pin 249 which protrudes into a slot 251 of the bearing element 246. Due to this movable arrangement, the Ti 1 ektrornngnot 24S can interlock with the l.iippcMi λ · \\ which in the tensioned state l> o I i lid I i lIicii closing lamella 217, while this closing lamella 217 during the film advance and shutter tensioning process by the film advance element 546 can be moved slightly beyond its cocked position.

If, as will be described in detail below, the first locking pawl 236 is released from the locking lug 235 of the opening lamella 216, the opening lamella rotates 216 quickly counterclockwise. The opening lamella 551 thereby moves out of the position aligned with the picture stage opening 553 Position to initiate the exposure of the image field located on the image stage 535. If When the opening lamella 216 approaches its open position shown in FIG. 21, a control lug 25 2 reaches the opening lamella 216 with the rounded tip of the second pawl 239 in engagement with the one on the closing blade 217 arranged locking lug 243 is locked, and pivoted this second pawl 239 so far that it is with the lock lamella 217 disengages. If the solenoid from the camera's exposure control circuit does not energize has been, by releasing the second pawl 239, the locking lamella 217 is immediately counterclockwise pivoted so that its lamella 552 the opening 553 in the

809837/0834

BATH ORIGINAL

" 5i ~

Covering image stage 535, which results in a mechanically predetermined exposure time. However, if the automatic exposure control system requires a longer exposure time, the electromagnet 245 holds the shutter blade 217 in their Clamped position until the electromagnet is de-energized, whereupon the shutter closes. As this type of automatic exposure control device belongs to the general state of the art, details of the electronic circuit in the Connection with the regulation of the electromagnet excitation not entered.

The trigger release rocker 253 shown in FIGS. 29 and 30 is mounted tiltably below the base plate 543 by means of rivets 254 and 255, which are supported by bearing tabs 256 and 25 7 of the Rocker 253 and extend through bearing tabs 258 and 259, which are bent downward away from the base plate 545. Of the Rectangular release button 506 is, as shown in broken lines in FIG. 29, attached to the underside of rocker 253 and extends through an opening made in camera housing 508. A leg spring 260 is around the head of a rivet 254 wound, one of its legs engaging a projection 261 of the rocker 253, while the other leg on the Base plate 543 rests. This moves the release button 506 down to its extended position. On theirs At the front end, the rocker 253 is provided with the pressure relief finger 541, which extends upward through the base plate 543 and the cover plate 527 extends and rests against the tongue 540 attached to the pressure plate 5 38 when the camera flap 511 is closed. The leg spring 261 is strong enough to hold the tension of the spring arms carrying the pressure plate 538 539 to be overcome, the clamping connection between this pressure plate and the film cassette being released as long as there is the trigger button 506 is in its extended position.

809837/083 4

A release slide 262 shown in FIGS. 29 and 30 is slidably mounted on the underside of the base plate by means of a stationary rivet 263 extending through a longitudinal slot 264 and is biased both to the right and counterclockwise by a helical spring 265. When the release slide 262 is in its tensioned position shown in solid lines in FIG. 29, its locking lug 266 engages a projection 267 of a stop 268 which, as FIG. 30 clearly shows, extends upwards from the rocker 253 extends. Upon pressing the release button 506, the protrusion 267 passes through a corresponding upward movement out of engagement with the locking projection 206, whereupon the coil spring 265 to ^l:. Brings rcigabescliieber 262 to the right in the dot-dash lines in Figure 29 line position by the abutment of the left end of the Longitudinal slot 264 on the rivet 263 is determined. During this movement, a stop 271 on the release slide 262 comes into engagement with a free end 272 of the first pawl 236 and causes this first pawl 236 to be released from the locking lug 235 of the opening lamella, thus initiating the locking process. As already described, before the shutter is released, the movement of the pressure relief finger 541 causes the pressure plate 538 to press the image field of the film disk 10 against the image stage 535, so that a plane contact of the image field is ensured during its exposure.

As can be seen from FIGS. 21, 22, 23 and 29, a clamping spigot 273 extends downwardly from the film advance element 546 and through an arcuate guide slot 274 made in the base plate 543. This clamping spigot 273 is designed so that it latches with a tongue 275 (see FIGS. 29 and 30) arranged on the release slide 262 and thus brings the slide 262 back into its tensioned position shown in FIG. 29 when the film advance element 546 is renewed

809837/0834

5 *

in its of FIG. 22 position shown moved wird-! driving the ser re-tensioning movement of the release slide 262 verscliwenkt this slightly in a clockwise direction and thereby leaves the FOhrungszapfen 276, wherein the Sperraase 26 © moved past dee jutted 267 of the stopper 268th

A stop pin 277 extending upwards from the shutter release rocker 253 protrudes outside the path of movement of the clamping pin 273 through the guide slot 274 made in the base plate S43 and is flush with the underside of the film advance element 546 when the shutter button 506 protrudes. When the film forward member 546 is in the position shown in FIGS. 21 and 23, a slot 278 provided in this member 546 is aligned with the end of the stop pin 277 so that the film advance member 546 cannot interfere with the depressing of the release button 506. If, however, the file advancing element 546 is not in its initial position, the release button 506 cannot be pressed down, since the stop pin 277 rests on the underside of this advancing element 546. Likewise, as long as the shutter release button is pressed, the stop pin 277 prevents the film advance element 546 from being moved out of its original position. Accordingly, the film disk 10 cannot be rotated until the release button 506 has been released to disengage the pressure plate 538 from the film cassette.

A more apparent from Fig. 29 locking slide 279 by means of a rivet 281 which extends through a mounted in the slide 279 longitudinal slot 282, displaceable and pivotally mounted on the underside of the base plate 543 and is formed by a coil spring 283 both rearwardly and clockwise biased. After the end of a film transport and shutter tensioning process, the locking slide 279 assumes the position shown in solid lines in FIG. 29, in which an edge 284 of the locking slide 279 at a local

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fixed pin 285 rests and in which the nose 576 of the film advance element 546 behind a locking nose 286 of the locking slide 279 is held so as to prevent the advancing element 546 from moving from its original position. As already As explained, by pressing the trigger button 506, the release slide 262 is shown in broken lines to the right in FIG Moved position shown to initiate the closure process. This movement of the release slide 262 reaches its stop 287 with the rear end of the locking slide 279 engages and pivots it counterclockwise around the rivet 281 against the force of the helical spring 283, causing the edge 284 and pin 285 to disengage. Thereupon the locking slide 279 is through the helical spring 283 is pushed back into the position shown in broken lines in FIG. 29, in which the pin 285 rests against an edge 288 of the locking slide 279 and so the locking lug 286 out of locking engagement with the lug 576 of the film advance element 546 holds. This feed element 546 can thus be actuated again in order to transport the film disk 10 and to tighten the lock again. If the film advance member 546 is during this next film advance and shutter cocking operation approaches the position shown in Fig. 22, its nose 576 engages at a free end of the locking slide 279 and moves it forward so that it is again the position shown in solid lines can take. During this movement of the film advance element 546 into its starting position, the nose 576 hits the inclined control surface 291 of the locking lug 286 and temporarily pushes it to the side so that the lug 576 is in its locking position can return. By this control process, the gate valve 279 is temporarily so slightly counterclockwise shifted so that the edge 284 is still in communication with the pin 285. As a result, the Lock slide 279, as soon as the lug 576 has moved backwards beyond the locking lug 286, again the extended

809837/0834

line and prevents further reciprocation of the film advance member 546 until the The shutter has been operated again. Thereby, the locking slide 279 ensures that each image field is exposed before the film disk 10 is advanced again to move the next available image field into the exposure position spend.

The flap locking device shown in detail in FIG consists of a locking slide 292, which is above the base plate 543 on the stop 566 and the pin 293 is slidably mounted, both of which are anchored to the base plate 543 and extend through in the locking slide attached longitudinal slots 294 and 295, as well as from a release slide 296, which is below the Base plate 543 is slidably mounted on the opposite end of the stop 566 and the pin 293, which is through longitudinal slots 297 and 298 made on the release slide 296, respectively. A tab 299 protrudes upwards through an opening 301 made in the base plate 543 and is designed so that it is with the right edge 302 one attached to the locking slide 292 projection 303 can be brought to bear. The release slider 296 is biased to the right by a spring 304 attached to a pin 305 of the base plate 543. One Stronger spring 306 connects the release slide 296 to a tab 307 of the locking slide 292. This tab 307 extends down through the base plate opening 301, thus tensioning the edge 302 of the locking slide 292 against the tab 299 of the release slide 296. The two springs 304, 306 work together so that they hold the two slides 292, 296 in their respective positions shown in FIG. 31, the stop 566 and the pin 293 each rest on the left end of the longitudinal slots 294 or 295 provided in the locking slide 292 and

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through the center of the ex 296 attached to the release slide Longitudinal slots 297 and 298 are guided. When the Verriegeiungsschieber 292 assumes this position and the camera flap 511 is closed, a locking tab 308 of the locking slide 292 with a spexx tab 309 is the flap 511 can be latched so that this flap is kept closed can be.

If dex release slide 296 by means of its from the outside to; borrowed locking handle 513 moved to the left, so shifts the tab 299 of this release slide 296 the locking slide 292 in the same direction and brings it the locking tab 308 of the locking slide disengaged with the locking lug 309 of the flap 511, so that this Flap can be opened. As can be seen most clearly from FIG. 23, however, the sector element 564 is immediate disposed over the locking slide 292 and hinders such leftward movement of the flap 299 of the pawl release slider 296, unless a recess 311 of the sector element 564 is aligned on this tab 299, which is only the case when The drive pulley 531 is in its position in FIGS. 20, 21 and 22 starting position shown.

As already described, by means of the deT feed pawl 582 on the hub 12 of the film unit 17 transmitted counterclockwise advancing movement the sector element 564 is driven clockwise and against the force of the leg spring 568. It also prevents locking the pawl 571 with the locking teeth 569 of the sector element 564 that this element 564 is in the opposite Direction can turn. Accordingly, when the film disk 10 is rotated to an exposure position, the locking handle 513 can only be moved to the left to open the camera when the drive disk 531 is in its Has returned the initial position to the cover plate 14 again

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to bring over the exposure opening 33 of the cassette. The surface of the image stage 535 is rounded in such a way that the displacement of the cover plate 14 into its position covering the exposure opening 33 is facilitated.

To open the camera flap after one or two exposures the photographer first adjusts the locking handle 513 to the right against the force of spring 306, causing the release slide tab 299 to rest on a finger 312 of pawl 571 comes off and this pawl 57T disengages with the locking teeth 569 device. On its opposite linden is the release slide 296 with a tab 313 which extends upward through a recess 314 made in the base plate 543. Becomes the release slide 296 shifted to the right in order to release the pawl 571 from the ratchet teeth 569, the tab 313 engages at the same time on the adjacent end of the feed pawl 582 in order to move it (see FIG. 21) and pivoted this pawl 182 counterclockwise around the pin 583, which at the same time the positioning pawl 589 clockwise rotated about the pivot 591, since the nose of the feed pawl 582 with the positioning pawl projection 595 comes into engagement (see especially Fig. 27). Thus become both the pawl lug 587 and the adjusting lug 594 via the path of movement of the positioning projections 114 of the hub moved out so that the torsion spring 568 can rotate the drive pulley 531 back into its starting position, whereby the Lamella part 40 passes over the exposure opening 33 of the film unit and the release slide 296 now in its leftmost position can be moved to reveal the flap.

Should the torsion spring 568 not be able to move the hub 12 of the film disk into its starting position due to a malfunction to bring back, for example because of the jamming of a

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faulty cassette, the locking system just described would prevent the camera from being opened so that it would be impossible to remedy this situation. It was therefore for this ensured that the flap can be opened in exceptional cases regardless of the position of the selector element 564. this will achieved in that a pin or the like is inserted through an opening 315 made in the camera housing and through Pressure against an end face 316 of the locking slide 292 of this locking slide 292 against the force of the spring 306 is brought into its unlocked position.

32 to 34 show, partly schematically, an even simpler one Form of a manually operated film disc advancement device, which is easily interchangeable with others of those already described Can connect camera features and through which it is also ensured that the camera is only then opened can be when the rotatable cover plate 14 of the film cassette has returned to a position in which they the exposure opening 33 covers.

When using this special indexing device, the film disc hub 351 shown in dashed lines is similar to that already hub 12 described, but also has a recess 352, which is not provided with positioning projections provided 90 ° large arc of the hub 351 is arranged somewhat eccentrically. During such a recess 352 would not have a task in connection with the stepping device described above, is one with this The hub provided with a feature is extremely useful in a device according to FIGS. 32 to 34.

If the film cassette is in the camera, it takes a hub hole 353 has a fixed axis 354 on which a film advance element 355 is also pivotably mounted. This Feed element 355 carries a film feed pawl 356 which,

80983 7/0834

in the one already described in connection with FIGS Way, by means of a pin 35 7 and a helical spring 358 is attached to the advancing element 355. A positioning pawl 359 is pivotably mounted on an eccentric adjusting screw 361 and by means of a weak helical spring 363 in the Biased counterclockwise towards a stop pin 362. When the cartridge is first inserted into the camera pawl 364 becomes the film advance pawl 356 received by the recess 352 and the adjusting lug 365 of the positioning pawl 359 is by means of the stop pin 362 held out of engagement with the adjacent peripheral surface 366 of the hub. There are also resilient pawls 367 and 368 which engage the adjacent positioning projections 114 of the hub 351 to prevent the hub rotates clockwise past a position where the film advance pawl 356 will rotate with each film advance can engage in the next positioning projection 114.

When the film advance member 355 is rotated clockwise, the pawl nose 364 of the advance pawl 356 slides The film advance pawl 356 engages via the first positioning projection 114a and a control surface 369 a pin 371 on the positioning pawl 359 and lifts the adjusting lug 365 into a path outside of the movement path of the positioning projections 114 position of the hub. As indicated in phantom in Fig. 32, the movement of the film advance member is 355 limited in the clockwise direction by a stop pin 372 so that the pawl nose 364 only moves so far that locking with the positioning projection 114a of the hub assigned to the next image field is ensured. if the film advance element 355 returns to its original position in the counterclockwise direction under the action of a spring 373 the pawl lug 364 the film disk 10 further so that the positioning projection 114a to lie on the adjusting lug 365

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-fi6 -

comes that during this final backward movement of the Film advance member 355 has returned to its operative position. Thus, as shown in FIG. 33, the positioning projection becomes 114a through the latch nose 364 in the already described Kind of resiliently pressed against the adjusting lug 365. By repeating this process, the photographer can do each of the following Spend the image field in the exposure position. In addition, as already described, with each film advance through the Element 355 the shutter cocked and other camera functions triggered «

After the last image field has been brought into the exposure position, the pawl nose 364 moves to the next Reciprocating movement of element 355 with surface 374 the hub recess 352 into engagement, so that the hub is displaced through a sufficiently large angle to the exposure window 33 to cover with the cover disk 14 without the hub making a complete rotation through 360 °. Another modification of a cassette with such a recessed hub is achieved by the upper locking groove 548 of its locking member 530 is expanded so that the hub by this final switching movement against further Turning is locked. As can be seen most clearly from Fig. 34, the positioning projection 114a is due to the off-center position of the recess surface 374 between the positioning projections 114a and 114j, the one The hub 351 rotates through almost 360 °, now outside of the position in which it is engaged by the pawl nose 364 can be. The pawl nose 364 is shown in Fig. 34 in its rightmost position for re-exposure of the first image field is prevented.

The flap locking device shown schematically in FIG. 32 is shown on the basis of a locking slide 375, which by means of a handle 377 against the force

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> - 2803801

ί «

a spring 376 is movable to the left, so that a locking lug 378 out of engagement with a cooperating with her, on the Locking handle attached to the camera flap. Am Pin 379 mounted on locking slide 375 engages a control surface 381 of a pivotably arranged locking element 382 and swivels this element counterclockwise around its pivot 383 when the locking slide 375 is moved to the left to release the flap, a locking member 384 is pivotably mounted on a pivot pin 385 and provided with a nose 386 which is brought into contact with the control surface 369 of the film advance pawl 356 by a spring 387 will. When the pawl nose 364 of the film advance pawl 356 has fallen into the hub recess 352, the locking member takes 384 assumes the position shown in solid lines in FIG. 32, in which its stop 388 is outside the movement path a projection 389 mounted on the locking element 382 is located, so that the locking element 382 by the releasing the flap Movement of the locking slide 375 can be pivoted counterclockwise. However, if the If the hub 351 is in any other rotational position, the resulting displacement of the lug 386 becomes the Locking member 384 rotated clockwise from its position shown in Fig. 32 in dashed lines, so that the stop 388 a rotary movement of the locking element 382 blocked in the counterclockwise direction and the locking slide 375 cannot be moved into the position releasing the flap can. As a result, the door cannot be opened until the hub 351 is in a position in the cover plate covers the exposure opening of the cassette casing.

809837/0834

35 to 38 is a third embodiment of a film disk indexing device shown schematically, which can be described as an "automatic" indexing device, since the energy of the device required for all successive switching movements of the film disk during the Loading the cassette is fed.

As in the case of the previously described embodiments of this Invention, this device is also provided with a fixed axis 401 which is used to receive the central bore of the Hub 12 of the film disk shown in dash-dotted lines is provided. One of the discs 531 already described Similar drive pulley 402 is rotatably mounted on the axle 401 and provided with a gearwheel 403 and several switching teeth 404, which are arranged at a distance of 30 ° from one another and thus correspond to the distance between adjacent positioning projections 114 of the hub 42. One that meshes with the gear 403 Drive element 405 is rotatably mounted on a pivot 406 and is clockwise by a relatively strong leg spring 407 biased. If the drive element 405 is in the position shown in solid lines in FIG. 35, then takes the drive pulley 402 a position in which you Coupling pin 408 is aligned between the axis 401 and the rectangular exposure opening 409 of the image stage of the camera, whereby a film cassette can be mounted in the camera so that it is engaged with the drive pulley 402.

A lever 411 is also pivotally mounted on the pivot 406 and provided with a stop 412 which can come into contact with an edge 413 of the drive element 405. To the To open the camera, the lever 411 is different from its shown in Fig. 35 in dash-dotted lines and in Fig. 38 in solid lines Position rotated counterclockwise to the position shown in solid lines in FIG. 35, the drive element

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405 and the drive pulley 402 assume their respective position shown in FIG. 35 in solid lines.

A locking slide particularly shown in FIGS. 37 and 38 414 is by means of guide pins 415 and 416, which are extending through an L-shaped slot 417 of the slider 414, slidably attached to the camera body, not shown. The slide 414 is biased by a spring 418 both to the left and clockwise around the guide pin 416. The cover flap shown partially at 419 is in its closed position in FIG. 37 and in a partially open one in FIG. 37 Condition shown. When the flap 419 is closed, the locking slide 414 assumes the position shown in FIG both guide pins 415 and 416 in the horizontal section 421 of the L-shaped slot 417 sit, and a slide projection 422 in engagement with that on the lid flap 419 Attached locking lug 423 is so that the flap is held in the closed state. When the lever 411 is in 35, when it reaches the position shown in solid lines, it engages a shoulder 424 of the locking slide 414 and moves this slide 414 to the right against the force of the spring 418 and thus brings the slide projection 422 out of engagement with the locking lug 423 attached to the lid flap 419. Just before the projection 422 and the Lugs 423 are detached from one another, however, a vertical section 425 of the slot 417 is directed towards the guide pin 415 off, whereupon the slide 414 is rotated clockwise by the spring 418 about the guide pin 416, so that a Hook 426 is moved to a position to the left of the lever 411. After the photographer has stopped moving the lever anti-clockwise and has at least partially opened the cover flap 419, this hook 426 holds the lever 411 in the position shown in FIG 35 and 37 in the position shown in solid lines, with the drive element 405 in the position shown in FIG. 35 for so long

809837/0834

-Mt-

Position is held as the cover flap 419 remains open. If this cover flap 419 is then in their pressed closed position, an edge 427 comes Flap 419 engages the upper edge of the slide projection 422 and presses this projection downwards, so that the guide pin 415 back on the horizontal section 421 of the L-shaped Slot 417 is aligned. The slide 414 then returns to its position in FIG. 36 under the action of the spring 418 locking position shown and releases the lever 411, which under the action of the spring 428 in its in Fig. 38 shown in solid lines and in Fig. 35 in dashed lines Position is moved back.,

When the cover flap 419 is closed, the lever 411 acts no longer the clockwise rotation of the drive element 405 caused by the torsion spring 407. Consequently The drive pulley 402 and thus also the hub 12 is now rotated in the counterclockwise direction by the drive element 405 offset. When rotating the hub 12 counterclockwise its positioning projection 114a, which is assigned to the first image field of the film disk, is pivoted so that that he is on the adjusting lug 429 of the pivotably mounted positioning lever 430 triggers. As a result, the cover plate 14 is rotated so that it is no longer on the exposure opening 33 of the Cassette casing is aligned and the first image field is aligned with the exposure opening 409 mounted in the image stage is.

The shutter is provided with an opening blade 431 and one Closing lamella 432 provided, which are arranged one above the other and movable on a suitable bearing device, not shown are held. The lamellae 431 and 432 are shown in FIG. 35 in their respective tensioned state, in which an opening 433 provided in the closing lamella 432 for

809837/0834

Exposure opening 409 is aligned and in an opening 434 made in the opening lamella 431 to the right of the exposure opening 409 arranged 1st »By locking one Opening lamella pin 435 with a locking lug 436 of a pivotably mounted locking lever 437 is the opening lamella 431 held against the force of a spring 438 in its tensioned state, while by locking one to the Closing lamella 432 attached locking lug 439 with a hook 441 of a pivotably mounted locking arm 442 the Closing lamella 432 is also held in the tensioned state against the force of a spring 443.

Ii in schematically shown member 444 for the release of the closure is mounted displaceably by means of a pin 445 extending through a longitudinal slot 446 and is mounted by means of a spring 447, which is attached to a pivotably mounted lever 448, to the front (in the drawing upwards) in its In FIg. 35 shown ineffective position biased. It is to be assumed that the representation of this shutter release member 444 is for illustration purposes only, and that such a thing Member would preferably be attached as shown in Figure 19 and connected to the buckle by suitable means.

If the member 444 is moved backwards (downwards in the drawing) for the purpose of exposure, then this initial movement of the lever 448 is pivoted so that its free end 449 is lifted from the tongue 451 of the pressure plate will. The free end 449 and tongue 451 correspond to the pressure relief finger 541 and tongue 540 of the pressure plate, respectively 538, which have already been described with reference to FIGS. 19 to 31. Through this initial movement of limb 444 the film is pressed against the stage by the pressure plate. In his further backward movement the member 444 then gets along with its control projection 452

809837 / 083A

the locking lever 437 in contact and pivoted this about its pivot 453 clockwise into the position shown in Fig. 38 in solid lines. As a result of this pivoting movement of the locking lever 437, its locking lug 436 is released from the pin 435 of the opening lamella 431 and its locking lug 454 is aligned with a pin 455 also attached to the opening lamella 431. Consequently, the aperture blade 431 is initiated, the exposure of the film in their in Fig. Intermediate position shown in solid lines 38 through the taking place by means of the spring 43S movement, shall adopt the position in which the fitted on this lamella 431 pin 455 of the locking tab 454 of the locking lever 4 37 and the opening 434 of the opening lamella 431 is aligned with the exposure opening 409 of the image stage 535 and with the opening 433 of the closing lamella 432. When the opening lamella 431 reaches its intermediate position, its control lug 456 comes into engagement with a control lug 457 of the locking arm 442 and releases this locking arm 442 from the locking lug 439 on the closing lamella 432, so that the spring 443 can bring the closing lamella 432 into its intermediate position which is fixed by the abutment of its stop 458 on the adjacent edge of the opening lamella 431. This movement of the closing lamella 432 ends the exposure of the film in that the opening 433 of the closing lamella 432 is displaced beyond the exposure opening 409 of the image stage 535. Thus, the shutter mechanism provides a mechanically predetermined shutter time which could obviously be increased by incorporating an electromagnet to delay the expiration of the shutter blade 432 in the manner already described in connection with FIGS.

When the member 444 is returned to its starting position by the spring 447, the lever 448 with its free end 449 by pulling away the pressure plate a

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Dissolution of the operative connection between this plate and the film cassette, whereupon a control projection 459 of the member 444 latches with the locking lever 437 and this in its starting position brings back. As a result of this displacement of the locking lever 437, its locking lug 454 is different from that on the opening lamella 431 attached pin 455 so that the two shutter blades 431 and 432 are a little further to the left in the in 38 can move the position shown in dashed lines. During this last phase of the movement of the two shutter blades detects an edge 461 of the opening lamella 431 a nose 462 of the positioning lever 430 and rotates this lever around his eccentric pivot point 463 into that shown in phantom in FIG. 38 Position in which the positioning lug 429 is released from the positioning projection 114a. As a result, the drive element is now driving 405 the drive pulley 402 around the hub 12 in a counterclockwise direction, so that the one finger 464 one Clamping member 465 adjacent shift tooth 404a of the drive pulley 402 comes into engagement with this finger 464 and that Tensioning member 465 is pivoted about its pivot pin 466 in a clockwise direction.

On this pivot pin 466, below the clamping member 465, there is also a pivotably mounted and spring-loaded biased counterclockwise against a stop pin 468 Clamp arm 467 arranged. The tensioning member 465 is relative to the tensioning arm by a weak leg spring 471 biased clockwise so that an edge 472 of the clamping member 465 is pressed against a stop 473 of the clamping arm 467 will. When the shift tooth 404a of the drive pulley 402 grips the finger 464 of the clamping member 465 and moves past it, so the resulting rotational movement of the clamping member 465 in the clockwise direction on the clamping arm 467 by means of the Transfer stop 473 of this arm, so that this arm 467 is temporarily in the position shown in phantom in FIG

809837/0834

moves and then returns to its original position. After this movement of the tensioning arm 467, its free end 474 comes into engagement with a projection 475 of the opening lamella 431 and brings the two closing lamellae 431, 432 back into their original tensioned position , the edge 461 of the opening lamella 431 comes out of engagement with the nose 462 of the positioning lever 430, so that a spring 476 can return the positioning lever 430 to its active position shown in FIG when the next positioning protrusion 114b engages the stelin nose 429. The next image field is thus in a position ready for exposure, the shutter is tensioned again and resumes its starting position. After all existing image fields have been exposed by repeating this process, the drive element 405 comes into contact with a stop pin 477, so that further counterclockwise rotation of the film disk is prevented.

Since the locking slide 414 controls the lever 411 in the position shown in FIG. 35 holds the position shown in solid lines, as long as the cover flap 419 is open, the film disc can be in a The film cassette inserted in the camera cannot be rotated until the cover flap is closed, causing an unintentional Exposure of the film disc to ambient light is prevented. This feature could also be implemented in the camera shown in FIGS. 19 to 31 by attaching a simple Locking device can be installed, with which the film advance element 546 in the shown in FIG. 21 when the flap is open Position could be locked.

The photographer wants to take out the film cassette after he either all or only a certain number of the available image

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fields, he opens the cover flap 419 by moving the lever 411 to the position shown in solid lines in FIG. 35 Moved position, whereby the hub 12 is rotated clockwise back to its original position, in which the rotatable cover disk 14 in turn covers the exposure window of the cassette casing and now the hub is in place is locked against further rotary movement. When the drive pulley 402 rotates clockwise, the Positioning projections 114 of the hub 12 form an inclined control surface 4 78 of the adjusting lug 429 and mesh with this adjusting lug 429 the force of the spring 476 to the side. The shift teeth 404 of the drive pulley 402 become on the finger in a similar manner 464 of the clamping member 465 moved past by turning this finger counterclockwise and against the force of the spring 471. Fig. 35 shows that when a cassette is inserted into the camera, the shutter is in the cocked state. However, this situation would only occur if the Kämera user had all available before exposure Fields of view would have removed a previously used cassette from the camera. If all images were exposed on the previously used cassette, so the closure remains untensioned, but is then renewed by the initial rotational movement of the drive disk 402 excited, through which the first available image field is brought into the recording position.

FIG. 39 shows a further embodiment of the one shown in FIGS. 35 to 38 shows the mechanism for use in a camera in which the shutter is operated in a different manner than by the Film advance mechanism is tensioned, e.g. B. by the final Return movement of the shutter release member after this movement causes the pressure plate to move away from the film cassette has solved. Since such a known (not shown) shutter tensioning mechanism without the tensioning arm 46 7 and this assigned elements, was based on these components

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dispensed with and the positioning lever 430 is provided with a locking lug 481, which creates a locking mechanism. When through the final movement of the shutter blades 431, 432 of the positioning lever 430 is pivoted into the position shown in dashed lines and the adjusting lug 429 has been released from a hub positioning projection, the locking lug 481 comes at the same time into the movement path of the adjacent switching tooth 404 of the drive pulley 402. As a result, the film disk without to reach their next exposure position, panned only so far, until the locking lug 481 temporarily prevents further pivoting of the drive pulley 402 in the counterclockwise direction. When the closure is re-tensioned by the final return movement of member 444, spring 476 brings about the positioning lever 430 back into its position shown in solid lines, so that its locking lug 481 out of engagement with the switching tooth 404 of the drive disk, whereupon the film disk completes its switching movement and takes a position, which is determined by the engagement of its next positioning projection with the adjusting lug 429.

40 and 41, a further embodiment of a locking mechanism is shown, which in its mode of operation Mechanism according to FIG. 39 is similar, in which, however, both an adjusting lug 483 and a locking lug 484 directly with the Hub positioning projections 114 cooperate to provide a to effect stepwise advancement of the hub 12, which is biased by the drive pulley 485 in the counterclockwise direction. the Adjusting lug 483 is arranged on a positioning lever 486 which is rotatably mounted about an eccentric pivot 487, and is held in its operative position shown in FIG. 40 by a spring 488. In this location, which by the plant of the positioning lever 486 is determined on a pin 489, the adjusting lug 483 with the positioning projection 114a is the hub locked to advance the hub counterclockwise

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prevent and keep the corresponding image field in the exposure position. The locking lug 484 is on a locking lever 491 attached, which is pivotally mounted on a pivot 492 and is provided with a control surface 49 3, which is the on the Opening slat 431 attached control pin 494 is adjacent when this slat is in its intermediate position shown in FIG occupies. A tab 495 arranged on the positioning lever 486 comes into engagement with a projection 496 of the Locking lever 491, wherein the generated by the spring 488, the positioning lever 486 in the counterclockwise direction tensioning the force The locking lever 491 is biased clockwise against the pin 49 7.

With the final return of the opening lamella 431 in their 41, its control pin 494 pivots the locking lever 491 in the counterclockwise direction, whereby the projection 496 of this locking lever moves the positioning lever 486 clockwise and against the force of the spring 488. Thus, the adjusting lug 483 is now out of engagement with the positioning projection 114a, so that the Hub 12 can rotate into the position shown in Fig. 41, in which this positioning projection 114a with the locking lug 484 in engagement stands. When the closure is tensioned again, the spring 488 moves the two levers 486, 491 into their respective positions 40, the locking lug 484 being released from the positioning projection 114a and the adjusting lug 483 strikes the positioning projection 114b and thus the film disk advance completed.

Figures 42 and 43 show an apparatus that takes advantage of some of the advantages of the film unit described herein. In Fig. 42, there are several Film units 17 with photographically developed images are arranged on a spline shaft 160 which passes through the hub bores 116 of the hubs 12 of the film units 17 is threaded. An elongated key on the spline 160 fits into the grooves 117 of the

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Hub bores 116 and is used to align the film units and to prevent the film units from rotating on the spline shaft. An optical viewer has a light source 158, an optical prism arrangement 164 with an optical beam path 163 and corresponding known optical and electrical Parts 161, including a screen in the form of a cathode ray tube 162. Leave with this viewing device the images are on the image fields 65 of the film units 17 look at the screen. The corresponding cutouts 54 of the film units 17 form in the stack of film units a channel that allows the prism assembly 164 to move parallel to the spline shaft 160 to move a certain distance and aligned to a desired film unit 17 ' will. Then the splined shaft 160 and the film units 17 mounted on it only have to be rotated through a predetermined arc to a desired image field 65 of the film unit 17 'im align the optical beam path 163 of the prism arrangement 164. This is done, for example, using the positioning vors ρ runge 114 of the hub 12. The hubs 12 of the film units 17 ensure a precise and constant spacing between adjacent film disks 10. As from FIG. 43 As can be seen, the prism assembly 164 can penetrate the stack of film disks 10 and capture a desired disk 17 ', without affecting the neighboring panes. Although, as can be seen from FIG. 43, the film disks 10 on both sides of the disk 17 'engaged with the prism array is slightly bent to the side, is the distance thanks to the hubs 12 so large that the curved disks do not touch the adjacent disks.

809837/0834

L e r s e i t e

Claims (1)

2B096Q1 March 3, 1978 Eastman Kodak Company, Rochester, New York State, United States of America Claims Flat-type cassette with a substantially opaque envelope having an exposure aperture and in the inside of which a disc-shaped photographic film unit is rotatably mounted, characterized in that at Use of a film unit (17) with a film disk (10) permanently connected to a hub (12), the casing (18) of the Cassette (11) has a hub counter bearing (19) in which the hub is rotatably mounted, and that the hub counter bearing and the hub of the film unit form a common hub lock (128, 130; 190 to 199) which is in a standby and the end position of the film disk prevents rotation of the hub relative to the hub counter bearing. 2. Cassette according to claim 1, characterized in that the common Nabenverrie ^ elung (128, 130; 190 to 199) between of the hub (12) and the hub counter bearing (19) a rotation of the hub before and / or after the exposure of the film disc (10) prevented. 3 «cassette according to claim 1 or 2, characterized in that that the hub lock (128, 130; 190 to 199) the film disc (10) in its ready and end position against TO9817 / 0814 Rotation secures when the film disc reaches its end position after a complete rotation and / or when the Film disk after rotation in one direction by less than 360 ° and subsequent rotation in the opposite direction Direction reaches the end position. 4. Cassette according to one of claims 1 to 3, characterized in that that the hub bearing (19) has an element (128) protruding into the area of the hub (12), the free End (129) in the ready and end position of the film disc (10) of the film unit (17) in engagement with a Locking device (130) reaches the hub. 5. Cassette according to claim 4, characterized in that the element projecting into the region of the hub (12) is a resilient element Tongue (128) protrudes from the hub counter bearing (19) and in the ready position of the film disk (10) in a locking groove (132) of a locking member (130) of the hub engages and that the hub has a hole (118) aligned with the tongue (128, 134) which is accessible from the outside of the cassette (11). 6. Cassette according to claim 5, characterized in that the locking member (130) is associated with one of the end position of the hub (12), the first locking groove (132) facing away from the second locking groove (148) in which the free end (129) of the tongue (128) locks into place in the end position. 7. Cassette according to claim 5 or 6, characterized in that the locking member (130) on both sides of the first locking groove (132) the free end (129) of the tongue (128) from the area of the locking groove controlling ramps (136 or 138). 8. Cassette according to one of claims 5 to 7, characterized in that that the locking member (130) when the hub (12) rotates in both directions of rotation the free end (129) of the 809837/0834 280980t ge (128) inevitably meshing with the second locking groove (148) Has ramps (144 or 146). 9. Cassette according to one of claims 1 to 8, characterized in that that a display device (129) is provided which, after the exposure of the film disc (10) has been completed one visible on the outside of the cassette (Tt), the Locking the hub (12) in the end position brings the signal into position. 10. Flat design cassette with substantially opaque Enclosure which has an exposure opening and in the interior of which a disc-shaped photographic PiImeinhe.it is rotatably mounted, in particular according to one of claims 1 to 9, characterized in that when used a film unit (17) with a non-detachable hub (12) connected film disk (10), which on a recording surface (13) has image fields (65) to be exposed imagewise or imagewise exposed, the envelope (18) the cassette (11) has a central opening (34), through which a hub part carrying positioning means (114, 118) on one end face from the interior of the cassette protrudes outwards. 11. Cassette according to claim .10, characterized in that the positioning means (114) in the vicinity of the edge of the hub (12) are provided, 12. Cassette according to claim 10 or 11, characterized in that the positioning means positioning projections (114 a to 114j) and that each frame (65) of the film unit (17) is assigned to one of these positioning projections. 13. Cassette according to claim 12, characterized in that the successive image fields (65) associated with positioning projections (114a to 114j) have the same 80983 7/08/34 have a distance and a distance of less than 360 ° Main sector of the hub (12) are distributed. 14.Kassette according to claim 13, characterized in that the The distance between the two positioning projections (114a and 114j) delimiting the main sector of the hub £ 12) is greater is than the distance between two successive image fields (65) associated positioning projections (114a and 114b) and that a recess (54) is assigned to the remaining sector of the hub. 15. Cassette according to one of claims 12 to 14, characterized in that that the distance between each image field (65) and the positioning projection (114) assigned to it is the same. 16. Cassette according to one of claims 12 to 15, characterized in that that each positioning projection has the shape of a switching tooth (114a to 114j), which faces away from each other Stop surfaces run essentially in the radial direction of the hub (12). 17. Cassette according to one of claims 10 to 16, characterized in that that the positioning means is arranged eccentrically to the axis of rotation (A), from the end face of the hub (12) have accessible positioning hole (118). 18. Cassette according to one of claims 14 to 17, characterized in that that the positioning means has a control surface (352, 374) which is used to initially rotate the film unit from the standby position around the axis of rotation (A) and which is assigned to the remaining sector of the hub (35i) is. 19. Cassette according to one of claims 10 to 18, characterized in that that the image fields (65) surrounding pre-exposed 809837/0834 Areas (6 7) at a predetermined distance from the positioning means (114) are arranged. 20. Flat design cassette with essentially opaque material Envelope having an exposure opening and inside a disc-shaped photographic film unit is rotatably mounted, in particular according to one of the preceding claims 1 to 19, characterized in that that when using a film unit (17) with inextricably connected to a hub (12) film disc (10), which on a recording surface (13) image fields (65) to be exposed imagewise and one from its edge (20) to the hub (12) has leading socket-shaped recess (54) which Image fields to the exposure opening (33) of the envelope (18) are alignable and that in a standby or hand position of the film unit, the recess for the exposure opening is aligned. 21. Cassette according to claim 20, characterized in that a cover disk (14) extending around the hub (12) is provided which has an opaque lamellar part (40) which is in the ready or end position of the film disk (10) covers at least part of the recess (54). 22. Cassette according to claim 21, characterized in that between of the film disk (10) and the cover disk (14) a protective element which is non-rotatably arranged in the casing (18) (16) is provided which has an exposure window (52) aligned with the exposure opening. 23. A camera for receiving a cassette according to one of claims 1 to 22, characterized in that a hub lock the cassette (11) releasing device (533; 408) is provided. 809837/0834 24. A camera according to claim 23, characterized in that the device (533; 408) when inserting the cassette (11) in the camera (501) can be operated. 25. A camera according to claim 23 or 24, characterized in that a flat chamber (516) serving for receiving the cassette (11) such a drive and feed device (515, 531 to 533, 546, 578, 582, 589; 354 to 356, 358, 359; 401, 402, 405, 407, 408, 430; 485, 486) aligns a drive element (531 to 533 or 354 or 402, 408 or 485) comes into contact with the hub (12) of the Imcinhcit (17) located in the cassette. 26. Camera according to claim 25, characterized in that the drive element is designed as a drive pulley (531; 402; 485) rotatably mounted in a base plate (543), which a centrally arranged, in the chamber (516) protruding axle pin (533 or 354 or 401) for receiving a central one Has a hub bore (116) of the film unit (17) and a coupling pin (533 or 408) eccentric to it, which engages in a bore (118) of the hub (12) offset to the axis of rotation (A) of the film unit. 27. Camera according to claim 26, characterized in that the coupling pin (533; 408) when inserting a cassette (11) in the camera (501) the hub lock (128, 130; 190 to 199) in the standby position against rotation the secured hub (12) is unlocked. 28. Camera according to claim 27, characterized in that the free end of the coupling pin (533; 408) to the bore (118) aligned resilient tongue (128) in its initial position out of engagement with the locking member (130) of the hub lock while it brings the free end (129) of the tongue in its one complete revolution of the film unit 809837/0834 2Ö09801 (17) associated end position In a locking groove (148) of the Locking member presses. 29. Camera according to one of claims 25 to 28, characterized in that the drive and feed device has a feed element (582, 587; 356, 364) which can be brought into engagement with the positioning projections (114a to 114j) of the hub (12; 351), which rotates the hub by a predetermined angle during its feed movement, as well as a positioning element (593, 594; 359, 365; 429, 430; 483, 486) which can be moved into the movement path of the position i crvorsprünjic as a function of the feed movement is and by pre-filing the system on this the Vi line i-nlic'i t in a Bet r iebs.slel limp, in which an image field (65) of the film disc (10) is aligned with the exposure opening (33) of the cassette is. 30. Camera according to claim 29, characterized in that as Feed element a feed pawl (582; 356) is provided, which over a distance between two positioning projections (114) corresponding arc is guided, which in their idle movement up to the plant of their latch nose (587 or 364) is movable on a positioning projection against the force of a spring (5 78; 373) and which the positioning projection using the stored spring energy around the specified arc angle and thus in a Operating position of the film unit (10) rotates. 31- camera according to claim 29 or 30, characterized in that that as a positioning element around a pivot pin (591; 361; 463; 48 7) pivotably arranged positioning pawl (593 to 595; 359, 365; 430; 4S3, 486) is provided, the Latch nose (587; 365; 429; 483) in the operating positions of the film unit (10) prevents the hub (12; 451) from further rotation » 809837/083 32. Camera according to one of claims 29 to 31, characterized in that that the feed element (582, 587; 356, 364) and the positioning element (593, 594; 359, 365; 430; 486) under Plant on the remote control surfaces of a positioning projection (114) this in the operating position of Clamp the film unit (17) between them resiliently. 33. Camera according to one of claims 29 to 32, characterized in that that a control device (595, 597, 598; 369, 371; 461, 462; 493, 494) is provided, by means of which the Positioning element (589; 359; 430; 486) out of engagement with a positioning projection before the feed movement of the hub (12; 351) (114) is pivotable and can be returned to its gripping position during the feed movement. 34. Camera according to claim 33, characterized in that the positioning element (589) has a control cam (19 7), at which a control pin (598) comes to rest at the beginning of the clamping movement of the drive device (546) and thereby the The positioning element swings out of the path of movement of the positioning projections (114) against the force of a spring (592), while he sees the return of the positioning element towards the end of the return stroke of the drive device in his Positioning position allows. 35. Camera according to claim 33, characterized in that the control device by a control cam (369) of the feed element and is formed by a control pin (371) of the positioning element (359). 36. Camera according to claim 33, characterized in that the Pq ₁ -sitionierelement (430; 486) depending on the impact of a control curve (461 or 494) of the photographic shutter (431, 432) of the camera on a control surface coupled to the positioning element (462; 493) can be moved into its position outside the path of movement of the positioning projections (114). 809837/0834 37. Camera according to one of claims 25 to 36, characterized in that that the drive device has a reset device (565, 568; 405, 407) which, before the removal a cassette (11) from the camera (501), the film unit (17) always rotates back into its standby or end position. 38. Camera according to one of claims 25 to 37, characterized in that that the drive and feed device by means of an art. the outside of the camera housing (508) accessible Handle (515, 546, 573; 355; 411) can be actuated. 39. Camera according to claim 38, characterized in that by means of the handle (411) a drive element (405, 407) of the Drive and feed device can be tensioned for a full revolution of the hub (12). 809837/0834