EP0366445A2 - Drehbare Steuerknöpfe - Google Patents

Drehbare Steuerknöpfe Download PDF

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Publication number
EP0366445A2
EP0366445A2 EP89311001A EP89311001A EP0366445A2 EP 0366445 A2 EP0366445 A2 EP 0366445A2 EP 89311001 A EP89311001 A EP 89311001A EP 89311001 A EP89311001 A EP 89311001A EP 0366445 A2 EP0366445 A2 EP 0366445A2
Authority
EP
European Patent Office
Prior art keywords
knob
members
rotary member
fingers
cam track
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.)
Withdrawn
Application number
EP89311001A
Other languages
English (en)
French (fr)
Other versions
EP0366445A3 (de
Inventor
Matthew Gerard Wright
Alistair Eric Thompson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
New World Domestic Appliances Ltd
Original Assignee
New World Domestic Appliances Ltd
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 New World Domestic Appliances Ltd filed Critical New World Domestic Appliances Ltd
Publication of EP0366445A2 publication Critical patent/EP0366445A2/de
Publication of EP0366445A3 publication Critical patent/EP0366445A3/de
Withdrawn legal-status Critical Current

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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
    • 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
    • G05G1/087—Controlling members for hand actuation by rotary movement, e.g. hand wheels retractable; Flush control knobs
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G7/00—Manually-actuated control mechanisms provided with one single controlling member co-operating with one single controlled member; Details thereof
    • G05G7/02—Manually-actuated control mechanisms provided with one single controlling member co-operating with one single controlled member; Details thereof characterised by special provisions for conveying or converting motion, or for acting at a distance
    • G05G7/08—Manually-actuated control mechanisms provided with one single controlling member co-operating with one single controlled member; Details thereof characterised by special provisions for conveying or converting motion, or for acting at a distance in which repeated movement of the controlling member moves the controlling member through a cycle of distinct positions
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/08—Turn knobs
    • H01H2003/085—Retractable turn knobs, e.g. flush mounted

Definitions

  • This invention relates to rotary control knobs and more specifically to a rotary control knob which is retractable so that it affords a flush appearance.
  • flush rotary control knobs which in their normal retracted position are flush with the knob surround but which may be axially pressed to cause the body of the knob to be ejected from its retracted position to an extended position where it may be manually rotated to effect the required control.
  • flush rotary control knobs not only afford a streamlined appearance but they are, to a large extent, childproof in that when they are in their retracted position it is obviously difficult to inadvertently turn them ON.
  • a rotary control knob comprising a pair of opposed generally cylindrical members each having a plurality of axially disposed fingers spaced around the circumference thereof, the fingers of one of the members intermeshing with the fingers of the other of the members, a rotary member having a circumferential surface adjacent a circumferential surface of said fingers, the rotary member having a continuous cam track formed in said circumferential surface, each of said fingers having a cam follower peg which extends into said cam track, and spring means for biassing said opposed members axially apart, said cam track being shaped whereby in a first position of said knob, said pair of opposed members are held in a retracted position by said rotary member, axial movement of said members towards each other causing said rotary member to be rotated to cause said members to be released and moved under the action of said spring means to an axially extended position.
  • said continuous cam track may be shaped such that subsequent axial movement of said members towards each other causes said rotary member to be further rotated to hold said members in said retracted position.
  • said continuous cam track may be shaped such that subsequent axial movement of said members towards each other causes said rotary member to be rotated to an intermediate position in which further axial movement of said members towards each other is prevented, said members, when axially released, being caused to be moved to said axially extended position under the action of said spring means, and being effective for causing said rotary member to be rotated relative to said intermediate position, subsequent movement of said members towards each other causing said rotary member to be further rotated to hold said members in said retracted position.
  • said rotary member may be of cylindrical form.
  • the cylindrical rotary member is disposed inside said intermeshing fingers, with said continuous cam track being disposed in the outer circumferential surface of said cylindrical rotary member, and said spring means being disposed inside said cylindrical rotary member, and between said opposed members.
  • said cylindrical rotary member is disposed around said intermeshing fingers, said continuous cam track being disposed in the inner circumferential surface of said cylindrical rotary member.
  • a finger supporting member disposed between adjacent fingers of said opposed members, the finger supporting member being axially attached to said rotary member and rotatable relative thereto.
  • each of said opposed members will comprise three axially disposed fingers spaced around the circumference thereof, in which case said continuous cam track will consist of three identical cam track portions disposed in the circumferential surface of said rotary member.
  • one of said pair of opposed members is adapted to be attached to a spindle to be rotated, and the other of said pair of opposed members forms or is adapted to receive an operating knob portion.
  • means may be provided operable when the operating knob portion is in its axially extended position for preventing said knob portion from being moved to said retracted position unless said knob portion is rotated to a predetermined angular (e.g. OFF) position.
  • a fixed bezel may be provided which surrounds said operating knob portion, a radial protrusion being provided on said knob portion which co-operates with a corresponding groove in said bezel when said knob is in said predetermined angular position, and which prevents said knob portion from being moved to said retracted position unless said knob portion is rotated to said predetermined angular position.
  • a flush control knob which is adapted to be used on a gas cooker, and specifically on a gas tap thereof which incorporates a niting facility.
  • the flush control knob shown comprises a pair of opposed, generally cylindrical members 1 and 2, each having three axially disposed fingers 3 disposed around the circumference thereof, the fingers 3 of the two members 1 and 2 being arranged to intermesh.
  • a cylindrical rotary member 4 Within the intermeshing fingers 3 of the two members 1 and 2 is disposed a cylindrical rotary member 4, through the centre of which extends a compression spring 5 which has the effect of biassing the members 1 and 2 apart.
  • a continuous cam track 7 In the outer circumferential surface 6 of the rotary member 4 the shaping of which controls the operation of the knob as will hereinafter be explained.
  • Each of the fingers 3 of the two members 1 and 2 is provided with a radially disposed peg 8, the inner end of each of which extends into the cam track 7.
  • the cam track 7 extends completely around the outer surface 6 of the rotary member 4, and consists of three identical portions, each of which co-acts with a respective one of the three fingers 3 of the two members 1 and 2.
  • the opposed member 1 will be provided either integrally or separately with a decorative end portion 21 by means of which the knob would be operated, and the opposed member 2 will be adapted to be attached to the rotary spindle of a gas tap (not shown).
  • Fig. 4 of the drawings there is depicted a development of the cam track 7 of the rotary member depicting the three identical portions thereof, and the operation of the flush control knob will now be described with reference to Fig. 4.
  • the member 1 In order to cause the flush control knob to be extended as depicted in Fig. 2, the member 1 is axially moved towards member 2, which causes peg 8 to engage the opposite inclined surface 11 of the cam track 7 to cause the rotary member 4 to be rotated until the peg 8 moves to the end position 12.
  • member 1 When the member 1 is released, member 1 moves axially away from member 2 under the action of the spring 5 and causes the peg 8 to traverse the portion 13 of the cam track 7 until it reaches end stop 14 which corresponds to the extended position of the knob as shown in Fig. 2 of the drawings. In this position of the knob, it may be used to effect rotary control of rotary control device with which it may be associated.
  • the member 1 When a gas tap is finished with and it is required to move the knob to its retracted position, the member 1 is moved towards the member 2, which causes the peg 8 at position 17 to traverse the inclined portion 18 to the end stop 19, and when the member 1 is released, the peg 8 engages the opposite inclined portion 20 of the cam track 7, causing the rotary member 4 to be rotated and causing the peg 8 to enter the point 9 of the cam track 7 which corresponds to the retracted position of the knob.
  • the niting of a gas tap is overcome by suitably shaping the cam track 7 to provide the intermediate position of the rotary member 4, at which position both of the opposed members may be moved axially.
  • the niting problem can be overcome simply by arranging that the axial force exerted by spring 5 in the flush control knob is more than the axial force needed to overcome the niting of the gas tap. By so doing, it is possible to simplify the shaping of the cam track 7, but the pressure needed to operate the knob may be unacceptably high.
  • a finger support member 22 of cylindrical form which is adapted to fit between the fingers 3 of the opposed members 1 and 2. As can be seen from Fig. 2, the fingers 3 overlap the finger supporting carrier 22 and enable greater movement between the retracted and extended positions of the knob to be achieved.
  • the finger support member 22 is provided at each of its ends with an internal flange 23 by means of which it is axially coupled to the rotary member 4, but the support member 22 is rotatable independently of the rotary member 4.
  • flush control knob which has been described is that when the control knob is attached to a rotary spindle of, say, a gas tap, and after it has been set to a required angular position, it is possible that a user could forget that the knob has been operated and it could inadvertently be left in this position.
  • the flush control knob described with reference to the accompanying drawings is provided with a fixed bezel 23 which surrounds the decorative end portion 21 of the knob.
  • the end portion 21 is provided with a radial protrusion 24 which, in the OFF position of the flush control knob, aligns with a groove 25 in the inner surface of the bezel 23, and which prevents the end portion 21 from being moved axially unless it is rotated to its OFF position.
  • knobs in accordance with the present invention may be applicable to rotary controls of any form.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Control Devices (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Mechanically-Actuated Valves (AREA)
EP89311001A 1988-10-26 1989-10-25 Drehbare Steuerknöpfe Withdrawn EP0366445A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB888825104A GB8825104D0 (en) 1988-10-26 1988-10-26 Rotary control knobs
GB8825104 1988-10-26

Publications (2)

Publication Number Publication Date
EP0366445A2 true EP0366445A2 (de) 1990-05-02
EP0366445A3 EP0366445A3 (de) 1990-05-30

Family

ID=10645850

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89311001A Withdrawn EP0366445A3 (de) 1988-10-26 1989-10-25 Drehbare Steuerknöpfe

Country Status (2)

Country Link
EP (1) EP0366445A3 (de)
GB (2) GB8825104D0 (de)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2060499A2 (es) * 1992-04-29 1994-11-16 Fagor S Coop Ltda Mejoras en mandos escamoteables para electrodomesticos.
EP0797052A1 (de) * 1996-03-20 1997-09-24 Schott Glaswerke Versenkbares Bedienelement
EP0936643A3 (de) * 1998-02-11 2000-11-02 BSH Bosch und Siemens Hausgeräte GmbH Drehschaltervorrichtung für elektrische Haushaltsgeräte
US6508144B1 (en) * 1999-08-11 2003-01-21 The United States Of America As Represented By The Secretary Of The Navy Quick zeroing knob assembly
EP1376296A3 (de) * 2002-06-27 2004-03-10 CANDY S.p.A. Kochgerät für Nahrungsmittel
EP0927426B2 (de) † 1996-09-12 2005-05-11 Arcelik A.S. Regelknopf für haushaltgeräte
WO2007008182A3 (en) * 2005-07-08 2007-06-21 Ocak Kalip Imalat San Ve Tic L Improvement in control button used in cookers
EP1892602A1 (de) * 2006-08-22 2008-02-27 Miele & Cie. KG Versenkbarer Bedienknebel für ein Haushaltsgerät mit einer Welle zur Ankoppelung an einen Energiesteller, Wahlschalter oder dergleichen
WO2008039159A1 (en) 2006-09-27 2008-04-03 Ocak Kalip Makina Imalat Sanayi Ve Ticaret Limited Sirketi Reinforced locker in control knob mechanisms
CN101799702A (zh) * 2009-02-03 2010-08-11 E.G.O.电气设备制造股份有限公司 用于电器的操作装置和操作方法
CN101258459B (zh) * 2005-06-03 2011-03-30 Bsh博施及西门子家用器具有限公司 用于炊具按钮下的密封垫
EP2648062A2 (de) * 2012-04-02 2013-10-09 BSH Bosch und Siemens Hausgeräte GmbH Drehknebel
WO2019219561A1 (de) * 2018-05-17 2019-11-21 Wabco Gmbh Ventilbaugruppe als park-löse-ventil für ein anhängefahrzeug
US20210223812A1 (en) * 2020-01-17 2021-07-22 Samsung Electronics Co., Ltd. Knob assembly and cooking apparatus having the same
US11157033B2 (en) * 2019-05-21 2021-10-26 Rockwell Automation Switzerland Gmbh Calibration knob
CN115233418A (zh) * 2022-07-22 2022-10-25 无锡小天鹅电器有限公司 旋钮装置及洗衣机

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03111100A (ja) * 1989-09-25 1991-05-10 Toshiba Corp 洗濯機
DE102005032509B4 (de) * 2004-07-15 2017-06-01 BSH Hausgeräte GmbH Bedienelement
MX2007016325A (es) 2007-12-18 2009-06-18 Mabe Sa De Cv Perilla auto-alineable.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1140038B (de) * 1961-11-10 1962-11-22 Vaillant Joh Kg Drucktastenventil, insbesondere fuer Warmwasserbereiter
US3557637A (en) * 1969-07-28 1971-01-26 Gen Motors Corp Control knob
DE2250621C3 (de) * 1972-10-16 1979-09-06 Standard Elektrik Lorenz Ag, 7000 Stuttgart Drehknopf für eine EinstellweUe
FR2447060A1 (fr) * 1979-01-19 1980-08-14 Thomson Brandt Bouton escamotable pour dispositif de commande a axe rotatif
GB2157800B (en) * 1984-04-17 1987-07-15 Hoover Plc Rotary control

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2060499A2 (es) * 1992-04-29 1994-11-16 Fagor S Coop Ltda Mejoras en mandos escamoteables para electrodomesticos.
EP0797052A1 (de) * 1996-03-20 1997-09-24 Schott Glaswerke Versenkbares Bedienelement
EP0927426B2 (de) † 1996-09-12 2005-05-11 Arcelik A.S. Regelknopf für haushaltgeräte
EP0936643A3 (de) * 1998-02-11 2000-11-02 BSH Bosch und Siemens Hausgeräte GmbH Drehschaltervorrichtung für elektrische Haushaltsgeräte
US6508144B1 (en) * 1999-08-11 2003-01-21 The United States Of America As Represented By The Secretary Of The Navy Quick zeroing knob assembly
EP1376296A3 (de) * 2002-06-27 2004-03-10 CANDY S.p.A. Kochgerät für Nahrungsmittel
CN101258459B (zh) * 2005-06-03 2011-03-30 Bsh博施及西门子家用器具有限公司 用于炊具按钮下的密封垫
WO2007008182A3 (en) * 2005-07-08 2007-06-21 Ocak Kalip Imalat San Ve Tic L Improvement in control button used in cookers
EP1892602A1 (de) * 2006-08-22 2008-02-27 Miele & Cie. KG Versenkbarer Bedienknebel für ein Haushaltsgerät mit einer Welle zur Ankoppelung an einen Energiesteller, Wahlschalter oder dergleichen
WO2008039159A1 (en) 2006-09-27 2008-04-03 Ocak Kalip Makina Imalat Sanayi Ve Ticaret Limited Sirketi Reinforced locker in control knob mechanisms
CN101799702B (zh) * 2009-02-03 2014-03-26 E.G.O.电气设备制造股份有限公司 用于电器的操作装置和操作方法
CN101799702A (zh) * 2009-02-03 2010-08-11 E.G.O.电气设备制造股份有限公司 用于电器的操作装置和操作方法
EP2214187A3 (de) * 2009-02-03 2011-07-06 E.G.O. ELEKTRO-GERÄTEBAU GmbH Versenkbare Bedieneinrichtung für ein Elektrogerät und Bedienverfahren
US8188386B2 (en) 2009-02-03 2012-05-29 E.G.O. Elektro-Geraetebau Gmbh Rotary push-button capacitance switch knob
EP2648062A2 (de) * 2012-04-02 2013-10-09 BSH Bosch und Siemens Hausgeräte GmbH Drehknebel
WO2019219561A1 (de) * 2018-05-17 2019-11-21 Wabco Gmbh Ventilbaugruppe als park-löse-ventil für ein anhängefahrzeug
US11157033B2 (en) * 2019-05-21 2021-10-26 Rockwell Automation Switzerland Gmbh Calibration knob
US11630474B2 (en) 2019-05-21 2023-04-18 Rockwell Automation Switzerland Gmbh Systems and methods for a calibration knob
US20210223812A1 (en) * 2020-01-17 2021-07-22 Samsung Electronics Co., Ltd. Knob assembly and cooking apparatus having the same
US11507126B2 (en) * 2020-01-17 2022-11-22 Samsung Electronics Co., Ltd. Knob assembly and cooking apparatus having the same
CN115233418A (zh) * 2022-07-22 2022-10-25 无锡小天鹅电器有限公司 旋钮装置及洗衣机

Also Published As

Publication number Publication date
GB8825104D0 (en) 1988-11-30
EP0366445A3 (de) 1990-05-30
GB2225626B (en) 1992-11-25
GB8924012D0 (en) 1989-12-13
GB2225626A (en) 1990-06-06

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