EP0595134B1 - Improved actuator device for household electrical appliances, in particular cooking hobs, electric ovens, microwave ovens, combination ovens or the like - Google Patents
Improved actuator device for household electrical appliances, in particular cooking hobs, electric ovens, microwave ovens, combination ovens or the like Download PDFInfo
- Publication number
- EP0595134B1 EP0595134B1 EP93116703A EP93116703A EP0595134B1 EP 0595134 B1 EP0595134 B1 EP 0595134B1 EP 93116703 A EP93116703 A EP 93116703A EP 93116703 A EP93116703 A EP 93116703A EP 0595134 B1 EP0595134 B1 EP 0595134B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- knob
- ovens
- control panel
- shaft
- actuator
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
- 238000010411 cooking Methods 0.000 title description 8
- 230000000717 retained effect Effects 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 206010027175 memory impairment Diseases 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C3/00—Stoves or ranges for gaseous fuels
- F24C3/12—Arrangement or mounting of control or safety devices
- F24C3/124—Control panels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C7/00—Stoves or ranges heated by electric energy
- F24C7/08—Arrangement or mounting of control or safety devices
- F24C7/082—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
- G05G1/08—Controlling members for hand actuation by rotary movement, e.g. hand wheels
- G05G1/10—Details, e.g. of discs, knobs, wheels or handles
- G05G1/12—Means for securing the members on rotatable spindles or the like
Definitions
- This invention relates to a device as described in the introduction to the main claim.
- DE-U-9 114 215 discloses a medical electrical instrument comprising a knob having a grip portion. Such portion can be completely removed from the instrument for sterilisation purposes.
- the knob by which the user operates it may become separated from its control panel with the consequent impossibility of altering the operation of the appliance or of a part or member thereof. This can cause obvious problems.
- a young child who while playing removes (with relative force) a knob which operates one of the heating elements of a cooking hob of gas burner type It is then no longer possible to adjust the burner associated with this knob, so making it impossible to turn off the gas to the burner when required.
- An object of the invention is to provide a device of the stated type by which even if a knob has been removed from its usual position on the control panel, the state of operation of the household electrical appliance and in particular of a cooking hob or oven can still be adjusted.
- a further object is to provide a device of the stated type which allows adequate access to the control panel, for example for its cleaning, without making it impossible to operate the actuator of the appliance and in particular the heating element of the cooking hob or the like.
- a further object is to provide a device which enables the appliance and in particular a cooking hob to be used even if the knob has been removed from its usual position on the appliance control panel.
- a knob 2 positioned on a control panel 1 is connected to an actuator shaft 3 usually connected to an actuator 4 (for example for a solenoid valve in a gas pipe) for operating a household electrical appliance, and in particular a burner of a gas cooker hob.
- the knob 2 is located on the upper face 5A of the control panel 5 for the household electrical appliance concerned.
- This control panel comprises an aperture 6 for the passage of the shaft 3 which, as stated, connects the knob to the actuator 4, which is positioned on the lower face 5B of said control panel.
- a usual protection insert 7 is provided in the aperture 6.
- the actuator shaft 3 comprises a body 10 (of known semicircular cross-section) with an upper free end 11 on which the knob 2 is forced.
- the knob 3 comprises an annular recess 13 for cooperating with an elastic ring 14 supported in any known manner by a tubular cylindrical element 15 associated with the knob 2 and movable telescopically relative to the shaft 3.
- the ring 14 is supported internally by the element 15.
- the recess 13 comprises (in relation to said figures) an upper wall 16 and a lower wall 17 which connect smoothly to the rest of the body 10 of the shaft 3.
- the element 15 is removably associated with the knob 2 and is partly inserted into a socket-shaped part 20 of this latter in which it is retained by a usual flat spring 21.
- the knob comprises a usual body 23 of known shape (cylindrical) to facilitate its gripping.
- the ring 14 of the element 15 is withdrawn from the recess 13 in the shaft 3 (see Figure 3).
- the shaft 3 rotates to operate on the actuator 4, in order for example to adjust the gas burner corresponding to this actuator to the desired flame level.
- the knob 2 is moved along an axis Z perpendicular to the control panel 5 and coinciding with the longitudinal axis of the shaft 3, until the ring 14 enters the recess 13.
- the movement of the knob along said axis Z ceases.
- the face 5A of the control panel 5 can hence also be cleaned below the knob 2.
- the element 15 remains in contact with the shaft 3 and is consequently torsionally coupled to it, this latter can be moved even with the knob 2 in the position distant from the control panel 5.
- the ring 14 is forced out of the recess 13 by pulling the knob 2 upwards (with reference to said figures). This however can be achieved only with a relatively large force which for example only an adult can exert. This prevents the knob being able to be removed by a young child with the obvious resultant problems related for example to the loss of the knob and the impossibility of operating the actuator 4.
- the knob 2 is repositioned on the shaft 3 in its usual position of use ( Figure 1) by the opposite procedure to that used for separating the two members. and hence deducible from the aforegoing description. The repositioning will therefore not be further described. It should however be noted that because of the form of the walls 16 and 17 of the recess 13 the force required for removing the knob from and returning it to the shaft 3 is not excessive for an adult.
Description
- This invention relates to a device as described in the introduction to the main claim.
- DE-U-9 114 215 discloses a medical electrical instrument comprising a knob having a grip portion. Such portion can be completely removed from the instrument for sterilisation purposes.
- As is well known it is possible that during the operation of a household electrical appliance, the knob by which the user operates it may become separated from its control panel with the consequent impossibility of altering the operation of the appliance or of a part or member thereof. This can cause obvious problems. Consider for example the action of a young child who while playing removes (with relative force) a knob which operates one of the heating elements of a cooking hob of gas burner type. It is then no longer possible to adjust the burner associated with this knob, so making it impossible to turn off the gas to the burner when required.
- With particular but not exclusive reference to a cooking hob or oven provided with any type of heating member, this action by the child can result in serious problems.
- In addition, in a cooking hob it is often necessary to clean the hob. This is suitably achieved by removing the usual knobs present on the hob control panel from the respective actuator shafts.
- After this cleaning, if the knobs are not replaced on their shafts, for example by forgetfulness, it is no longer possible to use the hob or oven.
- An object of the invention is to provide a device of the stated type by which even if a knob has been removed from its usual position on the control panel, the state of operation of the household electrical appliance and in particular of a cooking hob or oven can still be adjusted.
- A further object is to provide a device of the stated type which allows adequate access to the control panel, for example for its cleaning, without making it impossible to operate the actuator of the appliance and in particular the heating element of the cooking hob or the like.
- A further object is to provide a device which enables the appliance and in particular a cooking hob to be used even if the knob has been removed from its usual position on the appliance control panel.
- These and further objects which will be apparent to the expert of the art are attained by a device as described in the characterising part of the main claim.
- The present invention will be more apparent from the accompanying drawing, which is provided by way of non-limiting example and in which:
- Figure 1 is a perspective top view of a first embodiment of the invention with the knob in a first position of use:
- Figure 2 is a view similar to that of Figure 1 but with the knob in a second position of use;
- Figure 3 is a section on the line 3-3 of Figure 1;
- Figure 4 is a section on the line 4-4 of Figure 2;
- With reference to Figures 1 to 4, a
knob 2 positioned on a control panel 1 is connected to anactuator shaft 3 usually connected to an actuator 4 (for example for a solenoid valve in a gas pipe) for operating a household electrical appliance, and in particular a burner of a gas cooker hob. Theknob 2 is located on theupper face 5A of thecontrol panel 5 for the household electrical appliance concerned. This control panel comprises anaperture 6 for the passage of theshaft 3 which, as stated, connects the knob to theactuator 4, which is positioned on thelower face 5B of said control panel. A usual protection insert 7 is provided in theaperture 6. - The
actuator shaft 3 comprises a body 10 (of known semicircular cross-section) with an upperfree end 11 on which theknob 2 is forced. In proximity to this end theknob 3 comprises anannular recess 13 for cooperating with anelastic ring 14 supported in any known manner by a tubularcylindrical element 15 associated with theknob 2 and movable telescopically relative to theshaft 3. Thering 14 is supported internally by theelement 15. Finally, therecess 13 comprises (in relation to said figures) anupper wall 16 and alower wall 17 which connect smoothly to the rest of thebody 10 of theshaft 3. - The
element 15 is removably associated with theknob 2 and is partly inserted into a socket-shaped part 20 of this latter in which it is retained by a usualflat spring 21. Finally, the knob comprises ausual body 23 of known shape (cylindrical) to facilitate its gripping. - During the use of the cooking hob the
ring 14 of theelement 15 is withdrawn from therecess 13 in the shaft 3 (see Figure 3). As the cross-section through theelement 15 and through thesocket part 20 is identical to the cross-section through theshaft 3 in known manner, on rotating theknob 2 theshaft 3 rotates to operate on theactuator 4, in order for example to adjust the gas burner corresponding to this actuator to the desired flame level. When it is desired to clean theface 5A of thecontrol panel 5, theknob 2 is moved along an axis Z perpendicular to thecontrol panel 5 and coinciding with the longitudinal axis of theshaft 3, until thering 14 enters therecess 13. When this insertion takes place the movement of the knob along said axis Z ceases. Theface 5A of thecontrol panel 5 can hence also be cleaned below theknob 2. As theelement 15 remains in contact with theshaft 3 and is consequently torsionally coupled to it, this latter can be moved even with theknob 2 in the position distant from thecontrol panel 5. - To completely remove the knob from the
control panel 5, for example in order to carry out maintenance on theshaft 3, thering 14 is forced out of therecess 13 by pulling theknob 2 upwards (with reference to said figures). This however can be achieved only with a relatively large force which for example only an adult can exert. This prevents the knob being able to be removed by a young child with the obvious resultant problems related for example to the loss of the knob and the impossibility of operating theactuator 4. - The
knob 2 is repositioned on theshaft 3 in its usual position of use (Figure 1) by the opposite procedure to that used for separating the two members. and hence deducible from the aforegoing description. The repositioning will therefore not be further described. It should however be noted that because of the form of thewalls recess 13 the force required for removing the knob from and returning it to theshaft 3 is not excessive for an adult.
Claims (4)
- An actuator device for a household electrical appliance, comprising a knob (2) torsionally cooperating with a shaft (3) operationally connected to an actuator (4) for operating the household electrical appliance or a member thereof, said knob (2) being positioned on a control panel (5) provided on the appliance and being able to be moved relative to the control panel (5) along an axis (Z) perpendicular to this latter and coinciding with the longitudinal axis of the actuator shaft (3), the knob (2) being able to be distanced from the control panel (5) and moved out of the usual position in which it enables the appliance or its said member to be operated, characterised in that tubular cylindrical means (15) movable telescopically along the actuator shaft (3) and associated with the knob (2) are provided, said means (15) supporting locking means (14) arranged to cooperate with counter-means (13) associated with said shaft (3) when the knob (2) is in its position distant from the control panel (5), said cooperation still maintaining the knob (2) torsionally associated with the actuator shaft (3).
- A device as claimed in claim 1, characterised in that the locking means are an elastic ring (14) associated with the interior of the tubular means (15), the counter-means being a recess (13) provided in proximity to that end (11) of the actuator shaft (3) on which the knob (2) is mounted.
- A device as claimed in claim 2, characterised in that said recess (13) is smoothly joined to the remaining parts of the body (10) of the actuator shaft (3).
- A device as claimed in claim 1, characterised in that the tubular cylindrical means are a tubular cylindrical element (15) which is torsionally rigid with the knob and is inserted into a socket-shaped part (20) of this latter, said element (15) being retained in this part by an elastic element (21).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI922445 | 1992-10-26 | ||
ITMI922445A IT1255552B (en) | 1992-10-26 | 1992-10-26 | PERFECTED ACTUATOR DEVICE FOR HOUSEHOLD APPLIANCES, IN PARTICULAR COOKING HOBS, ELECTRIC, MICROWAVE, COMBINED OR SIMILAR OVENS. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0595134A1 EP0595134A1 (en) | 1994-05-04 |
EP0595134B1 true EP0595134B1 (en) | 1997-08-13 |
Family
ID=11364167
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93116703A Expired - Lifetime EP0595134B1 (en) | 1992-10-26 | 1993-10-15 | Improved actuator device for household electrical appliances, in particular cooking hobs, electric ovens, microwave ovens, combination ovens or the like |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0595134B1 (en) |
DE (1) | DE69313070T2 (en) |
IT (1) | IT1255552B (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29502768U1 (en) * | 1995-02-20 | 1995-04-06 | Bosch Siemens Hausgeraete | Built-in cooker with independent hob |
DE19706278A1 (en) * | 1997-02-18 | 1998-08-20 | Bosch Siemens Hausgeraete | Operating and display arrangement for a stove, in particular for a domestic stove |
ES2188304B1 (en) * | 1999-12-02 | 2004-10-16 | Bsh Balay, S.A. | COOKING OVEN |
FR3091763B1 (en) * | 2019-01-15 | 2022-05-27 | Vehotec | Control lever for household appliance type |
CN112146135A (en) * | 2019-06-28 | 2020-12-29 | 杜泽儒 | Column-shaped safety device of gas stove |
WO2023180220A1 (en) * | 2022-03-21 | 2023-09-28 | BSH Hausgeräte GmbH | Control element for a cooktop, coupling element, control device and cooktop |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2861467A (en) * | 1955-06-20 | 1958-11-25 | Ervin H Mueller | Operating stem for gas valve |
US2850307A (en) * | 1955-07-01 | 1958-09-02 | Bell Aircraft Corp | Valve stems |
DE3911413A1 (en) * | 1989-04-07 | 1990-10-11 | Bosch Siemens Hausgeraete | Domestic appliance switch |
DE9114215U1 (en) * | 1991-11-15 | 1992-01-09 | Hadomed Gmbh Medizintechnik, 7805 Boetzingen, De |
-
1992
- 1992-10-26 IT ITMI922445A patent/IT1255552B/en active IP Right Grant
-
1993
- 1993-10-15 DE DE69313070T patent/DE69313070T2/en not_active Expired - Lifetime
- 1993-10-15 EP EP93116703A patent/EP0595134B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE69313070T2 (en) | 1998-02-12 |
ITMI922445A1 (en) | 1994-04-26 |
EP0595134A1 (en) | 1994-05-04 |
DE69313070D1 (en) | 1997-09-18 |
ITMI922445A0 (en) | 1992-10-26 |
IT1255552B (en) | 1995-11-09 |
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