WO1993017936A1 - Container, especially toothbrush-container, with metered piston discharge - Google Patents

Container, especially toothbrush-container, with metered piston discharge Download PDF

Info

Publication number
WO1993017936A1
WO1993017936A1 PCT/IT1992/000024 IT9200024W WO9317936A1 WO 1993017936 A1 WO1993017936 A1 WO 1993017936A1 IT 9200024 W IT9200024 W IT 9200024W WO 9317936 A1 WO9317936 A1 WO 9317936A1
Authority
WO
WIPO (PCT)
Prior art keywords
container
dispenser
piston
knob
extending
Prior art date
Application number
PCT/IT1992/000024
Other languages
French (fr)
Inventor
Renata Luigia Galletti
Original Assignee
Renata Luigia Galletti
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Renata Luigia Galletti filed Critical Renata Luigia Galletti
Priority to PCT/IT1992/000024 priority Critical patent/WO1993017936A1/en
Priority to AU14513/92A priority patent/AU1451392A/en
Publication of WO1993017936A1 publication Critical patent/WO1993017936A1/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B11/00—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water
    • A46B11/001—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water with integral reservoirs
    • A46B11/002—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water with integral reservoirs pressurised at moment of use manually or by powered means
    • A46B11/0024—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water with integral reservoirs pressurised at moment of use manually or by powered means with a permanently displaceable pressurising member that remain in position unless actuated, e.g. lead-screw or ratchet mechanisms, toothpaste tube twisting or rolling devices
    • A46B11/0027—Lead-screw mechanisms
    • A46B11/0031—Means for influencing rotation of the knob, e.g. ratchet, click mechanisms, one way clutches
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B11/00—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water
    • A46B11/001—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water with integral reservoirs
    • A46B11/002—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water with integral reservoirs pressurised at moment of use manually or by powered means
    • A46B11/0024—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water with integral reservoirs pressurised at moment of use manually or by powered means with a permanently displaceable pressurising member that remain in position unless actuated, e.g. lead-screw or ratchet mechanisms, toothpaste tube twisting or rolling devices
    • A46B11/0027—Lead-screw mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/0005—Containers or packages provided with a piston or with a movable bottom or partition having approximately the same section as the container
    • B65D83/0011—Containers or packages provided with a piston or with a movable bottom or partition having approximately the same section as the container moved by a screw-shaft
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B2200/00—Brushes characterized by their functions, uses or applications
    • A46B2200/10—For human or animal care
    • A46B2200/1066—Toothbrush for cleaning the teeth or dentures

Definitions

  • Container especially toothbrush-container, with metered piston discharge
  • the present invention refers to the field of containers for fluid, viscous products, particularly products in paste form, such as toothpastes, creams and the like; more particularly it concerns the field of container toothbrushes.
  • the barrel part comprises a threaded shank, which controls the forward movement of a piston, and whose rotation is controlled, in its turn, by a knob; the latter has a cam surface corresponding to a 10.
  • sleeve integral with the shank in such a way that the movement of the piston is made up of a forward movement determined by the thread of the shank and a forward movement and a subsequent backward movement, determined by the co11aboration of the cam surfaces.
  • the aim of the present application is to improve further the 15- container-dispenser; in particular, to make it work more smoothly and, to make it easier and less expensive to produce; an additional aim is to enable writing or drawings for advertizing purposes to be applied to it.
  • the container-dispenser comprises a double-cam surface, the two cams having a same inclination and being concentric and offset at l8 ⁇ °.
  • the container-dispenser comprises a panel or preferably a bellows element carrying writing or a drawing, extending between the dispenser piston 25. and the base of the barreI and usuaI Iy spring driven against the piston, in such a way that it extends progressively with the forward movement of the piston.
  • the toothbrush-container has an angled head with a central opening in direct communication with the dispenser duct, without a closing valve.
  • figure 1 is an exploded perspective view of the container-dispenser; igure la is a view from below of a part of the container;
  • figure 3 is an enlarged illustration of a detail in “figure 2;
  • figure 4 is an axial section taken along the container-dispenser, with the piston in the position of maximum extension;
  • figure 5 is a view from the left with respect to figure L .
  • reference number 10 shows a toothbrush with a container handle, which, as example, realizes the container-dispenser which is the object of the present invention. It comprises a body 12, forming an inner chamber 13; on a lower thread on the body a base element 14 is screwed, which has an upper threaded skirt 15, a lower
  • skirt 16 forming an inner cylindrical seat 18, and a transverse part 20 with a through opening 22 with a shape which is other than circular. Between the s irts 15 and 16 on the outer surface a circumferential groove 24 is formed.
  • a control knob 26 is coupled in a revolving way to the base 14 by means of a circumferential tooth 28 inserted into the groove 24.
  • the knob 16 has a double cam surface 30, 30' on the wall of the base 31 and a central hole 32, for example square-shaped.
  • the cam surfaces 30, 5- 30' are rotating surfaces substantially in the form of concentric circumferentiaI incI ines, incI ined at equaI incI ination but offset at l8 ⁇ °; each one has a step 33, 33' in a radial position, extending along the whole height of the incl ines in an axial direction; the two incl ines are at an angle of l8 ⁇ ° to one another.
  • a feed eIement 35 comprises a threaded shank 36 and a tang 38.
  • the section of the latter has a shape suitable for coupling in an integral way to the rotation, with the hole 32 of the knob 26 being, for example, in the form of a square.
  • To the thread of the shank 36 is coupled the inner thread of a piston member 40, possibly provided with
  • a cam member 46 is locked longitudinal ly on the shank 36, between a shoulder 43 and a stop ring 44.
  • the cam member 46 is abIe to sI ide axiaI Iy with respect to the member 14 but is fixed to the rotation of the same, through a parallel-walled shape of a part 47 of the member 14 which couples with the anti-rotation opening 22 in the same.
  • a pressure spring 50 is interposed between a shoulder 48 of the element 46 and an opposite 25- shoulder 19 of the wall 20 of the element 14-
  • the lower face of the member 46 has a doubIe circumferentia1 inc1 ine cam surface.
  • the two inclines 52, 52' are circumferential, concentric and uniformly inclined, with axial steps 53 / 53' / offset at 180°, and they are intended to collaborate with the surfaces 30, 30' mentioned above.
  • a dispenser member 60 integral with a bristle-holder head 62 is appl ied by screwing down or in any other known way whatsoever, at the other end 56, to the threaded neck of the body 12.
  • the member 60 has a through channel 64 which opens to the outside by means of the opening
  • the head is straight or at an angle with respect to the axis of the body; with the bristles turned outwards, this inclination results in more efficient dispensing. It should be noted that more than one head can be used on the body, so that when a head is worn out or is no longer suitable, it can be replaced by another
  • a beI lows member 70 is positioned, or a flexible or extending paneI in generaI , which, when the piston is in the retracted position (figure 2) is positioned folded up in the small space between 15. the piston and the member 14, and extends with the piston as the iston gradually rises along the screw 36.
  • the extension of the flexible member 70 can be determined by fastening the ends thereof to the member 14 and to the piston 40, or else by locating a spring 72 inside the member 70.
  • a beI I-shaped protection cap 80 can be appI ⁇ ed to the body for protecting the head.
  • the knob 26 With the piston 40 lowered and the chamber 13 full of paste, the knob 26 is made to rotate in the direction of the arrow F in figure 2. Such rotation determines the rotation of the threaded shank 36 and the corresponding forward movement of the piston 40 towards the top of the figures, by means of the reciprocal engagement of the hole 32 with the 5. tang 38.
  • the cam surfaces 30, 30' as they move along the cam surfaces 52, 52', move the latter and the whole unit, composed of the members 35 / 40, 46, in an upward direction axial ly for a further length.
  • the piston 40 then moves forward for a length because of the rotation of the thread, and for another length because 10. of the cams.
  • the step 33 meets the step 53 / the release of the spring 50 brings back the element 46 (and therefore the shank 35 and the piston 40) towards the knob 26, for a length permitted by the height of the steps, in such a way that the forward movement of the 15- piston is reduced just to the forward movement due to the action of the thread.
  • the return release shuts off the dispensing of the paste and is clearly felt by the user, who realizes that it has dispensed a dose of paste.

Abstract

In a brush, particularly a toothbrush with a handle acting as container and piston actioned dispenser with screw feed along a threaded shank (36), a surface with a double cam (30, 30', 33, 33') is foreseen to guarantee a regular feed length with a sudden return. An extending panel (70) stretches between the piston and a fixed part of the barrel, so that writing or drawings can be applied to it.

Description

Container, especially toothbrush-container, with metered piston discharge
The present invention refers to the field of containers for fluid, viscous products, particularly products in paste form, such as toothpastes, creams and the like; more particularly it concerns the field of container toothbrushes.
5. A previous Italian application No. 19740 A/90 foresees a container or toothbrush container which co prises a barreI part and a dispenser part: the barrel part comprises a threaded shank, which controls the forward movement of a piston, and whose rotation is controlled, in its turn, by a knob; the latter has a cam surface corresponding to a 10. sleeve integral with the shank, in such a way that the movement of the piston is made up of a forward movement determined by the thread of the shank and a forward movement and a subsequent backward movement, determined by the co11aboration of the cam surfaces.
The aim of the present application is to improve further the 15- container-dispenser; in particular, to make it work more smoothly and, to make it easier and less expensive to produce; an additional aim is to enable writing or drawings for advertizing purposes to be applied to it.
The above aims have been achieved with a container-dispenser, in 20. particular a toothbrush, according to the claims. In particular, the container-dispenser comprises a double-cam surface, the two cams having a same inclination and being concentric and offset at l8θ°. In addition, it comprises a panel or preferably a bellows element carrying writing or a drawing, extending between the dispenser piston 25. and the base of the barreI and usuaI Iy spring driven against the piston, in such a way that it extends progressively with the forward movement of the piston. According to further characte istics, the toothbrush-container has an angled head with a central opening in direct communication with the dispenser duct, without a closing valve.
The containei—dispenser works smoothly without Jamming, and it can be 5. produced easily at a low cost. Furthermore, it can carry writing or drawings which become visible gradually, something which could arouse curiosity in children, for example, and might encourage them to use the toothbrush-contaϊner.
An exemplary embodiment of the present invention will be described 10. below with reference to the appended drawings, in which the invention is illustrated, and in which:
figure 1 is an exploded perspective view of the container-dispenser; igure la is a view from below of a part of the container;
"Figure 2 is an axial section of the device in its assent)led
15. condition, with the piston in the retracted position;
"figure 3 is an enlarged illustration of a detail in "figure 2; figure 4 is an axial section taken along the container-dispenser, with the piston in the position of maximum extension;
■figure 5 is a view from the left with respect to figure L .
20. In the drawings, reference number 10 shows a toothbrush with a container handle, which, as example, realizes the container-dispenser which is the object of the present invention. It comprises a body 12, forming an inner chamber 13; on a lower thread on the body a base element 14 is screwed, which has an upper threaded skirt 15, a lower
25. skirt 16 forming an inner cylindrical seat 18, and a transverse part 20 with a through opening 22 with a shape which is other than circular. Between the s irts 15 and 16 on the outer surface a circumferential groove 24 is formed. A control knob 26 is coupled in a revolving way to the base 14 by means of a circumferential tooth 28 inserted into the groove 24. The knob 16 has a double cam surface 30, 30' on the wall of the base 31 and a central hole 32, for example square-shaped. The cam surfaces 30, 5- 30' are rotating surfaces substantially in the form of concentric circumferentiaI incI ines, incI ined at equaI incI ination but offset at l8θ°; each one has a step 33, 33' in a radial position, extending along the whole height of the incl ines in an axial direction; the two incl ines are at an angle of l8θ° to one another.
10. A feed eIement 35 comprises a threaded shank 36 and a tang 38. The section of the latter has a shape suitable for coupling in an integral way to the rotation, with the hole 32 of the knob 26 being, for example, in the form of a square. To the thread of the shank 36 is coupled the inner thread of a piston member 40, possibly provided with
15- jointings 41 to seal it against the inner wall of the body 12, and preferably provided with means (not illust ated) for preventing its rotation with respect of the body.
A cam member 46 is locked longitudinal ly on the shank 36, between a shoulder 43 and a stop ring 44.
20. The cam member 46 is abIe to sI ide axiaI Iy with respect to the member 14 but is fixed to the rotation of the same, through a parallel-walled shape of a part 47 of the member 14 which couples with the anti-rotation opening 22 in the same. A pressure spring 50 is interposed between a shoulder 48 of the element 46 and an opposite 25- shoulder 19 of the wall 20 of the element 14- The lower face of the member 46 has a doubIe circumferentia1 inc1 ine cam surface. The two inclines 52, 52' are circumferential, concentric and uniformly inclined, with axial steps 53/ 53'/ offset at 180°, and they are intended to collaborate with the surfaces 30, 30' mentioned above. A dispenser member 60, integral with a bristle-holder head 62 is appl ied by screwing down or in any other known way whatsoever, at the other end 56, to the threaded neck of the body 12. The member 60 has a through channel 64 which opens to the outside by means of the opening
5- 63 of the head. The head is straight or at an angle with respect to the axis of the body; with the bristles turned outwards, this inclination results in more efficient dispensing. It should be noted that more than one head can be used on the body, so that when a head is worn out or is no longer suitable, it can be replaced by another
10. head on the same body.
Preferably but not necessarily, between the piston 40 and the wall 20 of the member 14Λ a beI lows member 70 is positioned, or a flexible or extending paneI in generaI , which, when the piston is in the retracted position (figure 2) is positioned folded up in the small space between 15. the piston and the member 14, and extends with the piston as the iston gradually rises along the screw 36.
The extension of the flexible member 70 can be determined by fastening the ends thereof to the member 14 and to the piston 40, or else by locating a spring 72 inside the member 70.
20. When the body 12 is reaI ized in transparent materiaI , as the member 70 gradually extends, any writing or drawings which may be applied to it gradually become visible from the outside.
A beI I-shaped protection cap 80 can be appI ϊed to the body for protecting the head.
25. A description follows of the way in which the device works.
With the piston 40 lowered and the chamber 13 full of paste, the knob 26 is made to rotate in the direction of the arrow F in figure 2. Such rotation determines the rotation of the threaded shank 36 and the corresponding forward movement of the piston 40 towards the top of the figures, by means of the reciprocal engagement of the hole 32 with the 5. tang 38. At the same time, the cam surfaces 30, 30', as they move along the cam surfaces 52, 52', move the latter and the whole unit, composed of the members 35/ 40, 46, in an upward direction axial ly for a further length. The piston 40 then moves forward for a length because of the rotation of the thread, and for another length because 10. of the cams.
When, during rotation, the step 33 meets the step 53/ the release of the spring 50 brings back the element 46 (and therefore the shank 35 and the piston 40) towards the knob 26, for a length permitted by the height of the steps, in such a way that the forward movement of the 15- piston is reduced just to the forward movement due to the action of the thread. The return release shuts off the dispensing of the paste and is clearly felt by the user, who realizes that it has dispensed a dose of paste.
Evidently, variations or modifications can be effected to what has 20. been described above, it is understood that all variations and modifications within the reach of a technician in the art faI I within the field of the present invention.

Claims

C L A I M S
1. A container-dispenser for fluid material, particularly in paste form, comprising a tubular body (12) of the container "forming an inner chamber (13)/ a dispenser member (60) with a channel (62) in communication with the said inner chamber (13) and ending with a
5- dispenser mouth (63), dispenser controlling means comprising a mobile piston (40) in the said chamber, a threaded shank (35) in the said chamber, coupled by means of threading with the said piston (40) in order to determine its forward movement; a knob (26) able to rotate with respect to the body (12) and 10. rotational ly integral with the said shank (35) but axial ly freely slidable with respect to it; a base member (46) integral with the said shank (35) as far as concerns axial movement but not integral with it as far as concerns rotation; 15. cam surfaces collaborating between the said knob and the said base member; the said member (46) being spring driven towards the said knob; characterized in that the said cam surfaces are at least two on the said knob and two on the base member, the said two surfaces on each 20. member being concentric and angu1arIy offset.
2. A container-dispenser according to claim 1, characte ized in that the said cam surfaces are formed with incl ines, each with a step, the steps in each pair of surfaces being offset at l8θ°; in such a way that a gradual moving away is obtained between the knob and the cam
25- member for an arc of a circle, and a sudden moving together in correspondence with the steps.
3. A containei—dispenser according to claim 1 or 2, characterized in that the dispenser member comprises a bristIe-hoIder head with a hole, suitable for being positioned in correspondence with the said dispenser mouth, in such a way that it makes up a container-dispenser brush.
5- 4. A container-dispenser according to claim 1, characterized in that it comprises a flexible and/or extending member (70) between the said piston and the said base member, the said extending member being in the retracted condition when the container is full and gradually extending as the piston moves forward on the shank.
10. 5. A container-dispenser according to claim 4/ characterized in . that the said extending organ is a bellows device.
6. A container-dispenser according to claim 4, characterized in that the said extending member is extended by a spring.
7. A container-dispenser according to claim 4 characterized in 5- that the said extending member is fastened at one end to the base member and at its other end to the piston.
8. A container-dispenser according to claim 1, characterized in that it comprises a beI I-shaped protection cap.
9. A bristle-holder head for use with a container-dispenser ^υ* according to the previous claims.
PCT/IT1992/000024 1992-03-04 1992-03-04 Container, especially toothbrush-container, with metered piston discharge WO1993017936A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/IT1992/000024 WO1993017936A1 (en) 1992-03-04 1992-03-04 Container, especially toothbrush-container, with metered piston discharge
AU14513/92A AU1451392A (en) 1992-03-04 1992-03-04 Container, especially toothbrush-container, with metered piston discharge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IT1992/000024 WO1993017936A1 (en) 1992-03-04 1992-03-04 Container, especially toothbrush-container, with metered piston discharge

Publications (1)

Publication Number Publication Date
WO1993017936A1 true WO1993017936A1 (en) 1993-09-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT1992/000024 WO1993017936A1 (en) 1992-03-04 1992-03-04 Container, especially toothbrush-container, with metered piston discharge

Country Status (2)

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WO (1) WO1993017936A1 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2720379A1 (en) * 1994-05-27 1995-12-01 Rene Laulhe Progressive emptying cap for paste container
ES2080021A1 (en) * 1994-07-06 1996-01-16 Mejias David Gonzalez System for feeding and blocking off the passage of toothpaste in a brush which incorporates it
WO1999063857A1 (en) 1998-06-09 1999-12-16 Rabatic Miso Tooth-brush with container for tooth-paste
US6129472A (en) * 1999-05-18 2000-10-10 Color Access, Inc. Mechanical twist-dispenser
US7367737B2 (en) * 2004-11-29 2008-05-06 Brian Johns Paste-N-Brush
EP2674065A3 (en) * 2009-12-23 2015-04-22 Colgate-Palmolive Company Oral care system
CN105595603A (en) * 2015-12-30 2016-05-25 浙江亿家喜牙具科技有限公司 Portable toothbrush capable of rapidly squeezing toothpaste out
CN106275878A (en) * 2016-10-19 2017-01-04 中山市联昌喷雾泵有限公司 One pours in down a chimney quantitative cream or frost tank
US20210186195A1 (en) * 2018-05-17 2021-06-24 Iwito D.O.O Toothbrush with a replaceable toothpaste cartridge

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997048623A1 (en) 1996-06-20 1997-12-24 Versa Pak Pty Ltd Beverage dispenser

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2320749A (en) * 1941-08-04 1943-06-01 Herbert G Pressentin Dispensing device
FR932319A (en) * 1944-10-06 1948-03-18 Combination toothbrush
US3261367A (en) * 1963-09-13 1966-07-19 John J Pickering Cartridge-loaded pressure feed toothbrushes
FR2213754A1 (en) * 1973-01-16 1974-08-09 Reitknecht Jack
US4013370A (en) * 1975-12-01 1977-03-22 Antoine Gingras Fountain tooth-brush
DE9103380U1 (en) * 1990-03-21 1991-06-20 Galletti, Renata, Garda, It

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2320749A (en) * 1941-08-04 1943-06-01 Herbert G Pressentin Dispensing device
FR932319A (en) * 1944-10-06 1948-03-18 Combination toothbrush
US3261367A (en) * 1963-09-13 1966-07-19 John J Pickering Cartridge-loaded pressure feed toothbrushes
FR2213754A1 (en) * 1973-01-16 1974-08-09 Reitknecht Jack
US4013370A (en) * 1975-12-01 1977-03-22 Antoine Gingras Fountain tooth-brush
DE9103380U1 (en) * 1990-03-21 1991-06-20 Galletti, Renata, Garda, It

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2720379A1 (en) * 1994-05-27 1995-12-01 Rene Laulhe Progressive emptying cap for paste container
ES2080021A1 (en) * 1994-07-06 1996-01-16 Mejias David Gonzalez System for feeding and blocking off the passage of toothpaste in a brush which incorporates it
WO1999063857A1 (en) 1998-06-09 1999-12-16 Rabatic Miso Tooth-brush with container for tooth-paste
US6129472A (en) * 1999-05-18 2000-10-10 Color Access, Inc. Mechanical twist-dispenser
US7367737B2 (en) * 2004-11-29 2008-05-06 Brian Johns Paste-N-Brush
EP2674065A3 (en) * 2009-12-23 2015-04-22 Colgate-Palmolive Company Oral care system
CN105595603A (en) * 2015-12-30 2016-05-25 浙江亿家喜牙具科技有限公司 Portable toothbrush capable of rapidly squeezing toothpaste out
CN105595603B (en) * 2015-12-30 2018-01-16 浙江亿家喜牙具科技有限公司 A kind of Portable tooth paste quickly extrudes toothbrush
CN106275878A (en) * 2016-10-19 2017-01-04 中山市联昌喷雾泵有限公司 One pours in down a chimney quantitative cream or frost tank
US20210186195A1 (en) * 2018-05-17 2021-06-24 Iwito D.O.O Toothbrush with a replaceable toothpaste cartridge

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