EP0102332B2 - Drehbare Steuereinrichtung mit zurückziehbarem Drehknopf, insbesondere für Haushaltsgeräte - Google Patents

Drehbare Steuereinrichtung mit zurückziehbarem Drehknopf, insbesondere für Haushaltsgeräte Download PDF

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Publication number
EP0102332B2
EP0102332B2 EP19830830171 EP83830171A EP0102332B2 EP 0102332 B2 EP0102332 B2 EP 0102332B2 EP 19830830171 EP19830830171 EP 19830830171 EP 83830171 A EP83830171 A EP 83830171A EP 0102332 B2 EP0102332 B2 EP 0102332B2
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EP
European Patent Office
Prior art keywords
knob
control
shaft
piston
restraint device
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
Application number
EP19830830171
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English (en)
French (fr)
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EP0102332A3 (en
EP0102332A2 (de
EP0102332B1 (de
Inventor
Roberto Bertazzoni
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Smeg SpA
Original Assignee
Smeg SpA
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Publication date
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Application filed by Smeg SpA filed Critical Smeg SpA
Publication of EP0102332A2 publication Critical patent/EP0102332A2/de
Publication of EP0102332A3 publication Critical patent/EP0102332A3/en
Application granted granted Critical
Publication of EP0102332B1 publication Critical patent/EP0102332B1/de
Publication of EP0102332B2 publication Critical patent/EP0102332B2/de
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Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H43/00—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operation after the programme is completed
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/50—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member
    • H01H13/56—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member the contact returning to its original state upon the next application of operating force
    • H01H13/562—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member the contact returning to its original state upon the next application of operating force making use of a heart shaped cam
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H25/00—Switches with compound movement of handle or other operating part
    • H01H25/06—Operating part movable both angularly and rectilinearly, the rectilinear movement being along the axis of angular movement
    • 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

  • the present invention deals with a rotatory control device having a control handle or knob movable from a work position in which it projects from a surrounding surface to a rest position, being retracted with respect to said surface.
  • Such control devices are sometimes used in household appliances,such as for controlling cocks or switches of gas cookers or electric cookers, respectively, ovens and the like. Their purpose is that of providing an easy handling and working of the knob when this is in the projecting position, and its subsequent travel to the rest position, in which it does not project from the surrounding surface of the household apparatus, generally formed of a control panel, thus being protected from shocks and undesired strokes, and in addition the apparatus aspect is aesthetically improved.
  • the known devices could not be used with the timer knob of a dishwashing machine, when it is mounted on the machine door and all the associated linkages, as well as the seat for the back stroke of the knob, must be contained in the restricted thickness available between the door and the inner screen-door of the machine.
  • GB-A-2 088 639 intends to solve this problem by obtaining a push-push device of smooth and reliable operation without play, wherein said device is not housed in the knob, but in a box-shaped frame positioned at the rear of the component (a sound volume control mechanism).
  • This solution however requires additional space behind the component, which often is not available.
  • US-A-3 557 637 discloses a rotary control device according to the pre-characterizing part of claim 1.
  • the aim of the present invention is to provide a rotary control device with a retractable knob, said device being of smaller dimensions than present known control devices.
  • These types of control devices are sometimes used in household appliances and mounted in the frontwall thereof, where the available depth for such a control device is limited and therefore should be of small dimensions.
  • the invention provides a control device where the restraint device operable in two steps to control the longitudinal movement of the control shaft is housed within a hollow central portion of the component to be controlled. With this construction the presence of the restraint device does not add to the depth size of the control device assembly, which is normally the case in known control devices, and the present invention consequently may have a particularly compact construction.
  • shaft integral to the knob can be guided within the component to be controlled, or in relationship to parts integral therewith, much more efficiently than the way a slidable knob can be guided along its shaft, thus resulting in an improved stability of the knob in the "work" positions.
  • control shaft to the front end of which the control knob is fixedly mounted, is made integral in its back end portion to a piston-shaped member being axially slidable in the hollow central part of the rotating portion of the component to be controlled to which it is coupled for rotation movement by means of a key-type coupling, the piston--shaped member cooperating with a return spring biasing it to the position corresponding to the forward projecting knob and being formed with a shaped portion which is a part of the two-steps operated restraint device.
  • these configurations of the piston member, forming a part of the restraint device comprise a recessed and shaped track co-operating with a coupling clip which is inserted in the rotating portion of the component to be cotrolled.
  • control device of the invention is the actuation means for operating the programme timer of a household appliance such as a dishwasher, washing machine, cooker, oven or the like.
  • numeral 1 represents a programme timer of a generally known type, but having a hollow central portion 2 which is integral to the rotating part of the component and formed of a multiplicity of cams, not shown.
  • This hollow central portion 2 is provided with a key 3 extending longitudinally within its cavity.
  • the hollow portion 2 houses a coupling clip 4 with a bent free end 5.
  • a piston-shaped member 6 is placed within the hollow portion 2 of the timer and shows a groove corresponding to the key 3 and co-operating therewith, so that the piston 6 can slide axially in the hollow portion 2 while rotates with the latter without relative motion.
  • the piston 6 On the side opposite to the key 3 the piston 6 has a plane face with a shaped grooved track 7 adapted to co-operate with the bent free end 5 of the coupling clip 4 to form therewith a restraint device operable in two steps, which is well known per se.
  • a control shaft 9 projecting from the timer hollow portion 2 is fixed to the piston-shaped member 6 and a knob 10 is fixedly mounted at its outer end.
  • the knob is placed in correspondence with a recess 12 formed in a surface 11, in this case a dishwasher door.
  • the position of the knob 10 in relationship with the surface 11 is such that when the piston 6 is in its position far from the bottom of the hollow portion 2 (Fig. 1), the knob 10 protrudes from surface 11, whereas when the piston 6 is near the bottom of the hollow portion 2 (Fig. 2) the knob is within (in this case completely) the recess 12 which is the seat for its housing.
  • the operation of the device is as follows. Supposing initially the rest position (Fig. 2), upon exerting a pressure on the knob 10 which is retracted in the seat 12, the restraint device to be operated in two steps is actuated to the effect that spring 8 is allowed to move piston 6 away from the bottom of the hollow portion 2: the knob 10 assumes the protruding position of Fig. 1. Then it can be grasped and caused to rotate in or- derto set the timer on the wished programme. The rotation of the knob 10 is rigidly transmitted to shaft 9 and piston 6 and from this to the rotating portion of the timer through the key 3.
  • knob 10 Upon setting, a further pressure on the knob 10 causes this to move back into the seat 12 while the restraint device operable in two steps holds the piston 6 in the vicinity of the hollow portion bottom. In this position the knob 10 does not protrude from the machine door surface 11, is protected from any accidental shock and cannot be inadvertently rotated such as by children. Furthermore in this not protruding condition it cooperates to a better aspect of the machine. However the knob 10 is still perfectly visible and its observation provides an indication of the progress of the pre-set working programme.
  • the fitting between piston 6 and hollow portion 2 may be precise enough and the control shaft 9 in turn may be efficiently supported in that point where it projects from the hollow portion 2, so that any oscillation of the knob 10 in the "work" forward position can be efficiently prevented.
  • control device has been described as applied to a dishwasher programme timer, it is obvious that such a device can be applied to timers for any different type of household apparatus, as well as to whichever else component to be rotatively controlled, and the knob of which can be advantageously retracted into a seat, provided that such a component allows for a hollow portion at the central zone of its rotating member or can be crossed throughout by an axially movable control shaft.
  • the surface 11 may belong, instead of a door, to a control panel and the seat 12, which is entirely free in the represented embodiment, may be partially occupied by protruding elements adapted to be contained in the rear-side cavity 13 of the knob 10, between its mounting hub on the shaft 9 and its outer skirt, which in some cases may provide a further reduction of the dimensions required for the whole device in the depth direction.
  • the shape of the parts forming the device may be modified to conform to the various application requirements and the various components, especially the restraint device operable in two steps, may be replaced with their technical equivalents.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Control Devices (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)

Claims (5)

1. Drehbare Steuereinrichtung eines Typs, der mit einem Steuerknopf versehen ist, welcher bewegbar ist zwischen einer Arbeitsstellu ng, die von der umgebenden Oberfläche absteht, und einer Ruhestellung, die zurückgezogen in Bezug auf diese Oberfläche ist, wobei der Steuerknopf (10) an einer Steuerwelle (9) befestigt ist, die axial beweglich, aber nicht drehbar an dem drehbaren Abschnitt einer zu steuernden Baugruppe (1) befestigt ist, und die Steuerwelle (8) an einer Stelle hinter dem Steuerknopf (10) mit einer in zwei Stufen betätigbaren Bewegungsbegrenzeinrichtung (4, 7) verbunden ist, die auf einen ersten Druck, der auf die Welle (9) über den Knopf (10) ausgeübt wird, dessen Bewegung in eine Stellung bewirkt, in der der Knopf (10) von der umgebenden Oberfläche (11) zurückgezogen ist, und auf einen zweiten Druck eine Rückstellfeder (8) freigibt, die die Welle in eine Stellung drückt, in der der Knopf in der abstehenden Arbeitsstellung ist, dadurch gekennzeichnet, daß die Bewegungsbegrenzeinrichtung (4, 7), die in zwei Stufen zur Steuerung der Welle (9) betreibbar ist, in einem hohlen zentralen Abschnitt (2) des drehenden Teils der zu steuernden Baugruppe (1) untergebracht ist.
2. Einrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Steuerwelle (9) an deren äußerem Ende der Steuerknopf (10) befestigt ist, an ihrem inneren rückwärtigen Ende mit einem kolbenartigen Teil (6) verbunden ist, das axial verschiebbar in dem hohlen zentralen Abschnitt (2) und mit diesem zur Drehbewegung mittels eines schlüsselartigen Kupplungsstückes (3) verbunden ist, daß das kolbenartige Teil (6) mit der Rückstellfeder (8) zusammenwirkt, um dieses Teil in eine Stellung zu drücken, die dem hervortretenden Knopf (10) entspricht, und mit einem Formabschnitt (7) ausgebildet ist, der Teil der Bewegungsbegrenzeinrichtung ist.
3. Einrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die Formabschnitte (7) des kolbenartigen Teils (6), die ein Teil der in zwei Stufen betätigbaren Bewegungsbegrenzeinrichtung sind, eine ausgesparte und geformte Gleitbahn aufweisen, die mit einem Kupplungsbügel (4) zusammenwirkt, der in dem drehbaren Abschnitt (2) der zu steuernden Baugruppe (1) eingelegt ist.
4. Einrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die Rückstellfeder (8) teilweise in einem Hohlraum des kolbenartigen Teils (6) untergebracht ist.
5. Einrichtung nach Anspruch 1, dadurch gekennzeichnet, daß sie das Betätigungsmittel zum Steuern eines Programmzeitschalters (1) eines Geschirrspülers, einer Waschmaschine, eines Kochherdes, eines Heizers oder dergleichen ist.
EP19830830171 1982-08-26 1983-08-26 Drehbare Steuereinrichtung mit zurückziehbarem Drehknopf, insbesondere für Haushaltsgeräte Expired - Lifetime EP0102332B2 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
IT5363282 1982-08-26
IT5363182 1982-08-26
IT5363182 1982-08-26
IT5363282 1982-08-26

Publications (4)

Publication Number Publication Date
EP0102332A2 EP0102332A2 (de) 1984-03-07
EP0102332A3 EP0102332A3 (en) 1985-08-14
EP0102332B1 EP0102332B1 (de) 1989-03-15
EP0102332B2 true EP0102332B2 (de) 1993-09-01

Family

ID=26329578

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19830830171 Expired - Lifetime EP0102332B2 (de) 1982-08-26 1983-08-26 Drehbare Steuereinrichtung mit zurückziehbarem Drehknopf, insbesondere für Haushaltsgeräte

Country Status (3)

Country Link
EP (1) EP0102332B2 (de)
AU (1) AU1734483A (de)
DE (1) DE3379435D1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2217312A4 (de) * 2007-11-05 2017-12-06 ResMed Ltd. Belüftungssystem und steuerung dafür

Families Citing this family (13)

* 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
JP3093256B2 (ja) * 1990-07-06 2000-10-03 旭光学工業株式会社 双眼鏡の調整機構
EP0626705A3 (de) * 1993-05-28 1995-01-18 Eaton Corp Kombinierter Druckknopf- und Drehschalter.
US5438172A (en) * 1993-08-16 1995-08-01 Ford Motor Company Zero backlash position encoder
EP0671681B1 (de) * 1994-03-09 1998-07-08 Whirlpool Europe B.V. Versenkbarer Drehknebel
DE19545994A1 (de) * 1995-12-09 1997-06-12 Aeg Hausgeraete Gmbh Versenkbare Drehknebeleinheit
DE19548659C1 (de) * 1995-12-18 1997-05-28 Brose Fahrzeugteile Schaltvorrichtung und Verfahren zum Steuern eines fremdkraftbetätigten Verstellantriebs eines Kraftfahrzeugs
DE19610921C2 (de) * 1996-03-20 1999-10-07 Schott Glas Kochgerät
DE29702936U1 (de) * 1997-02-20 1997-04-30 Grässlin KG, 78112 St Georgen Manuelle Schaltvorrichtung für Zeitschaltuhren
DE10008015A1 (de) * 2000-02-22 2001-08-23 Bsh Bosch Siemens Hausgeraete Haushaltsgerät mit einer Zeitschaltereinrichtung
DE102006039196B3 (de) * 2006-08-22 2007-10-11 Miele & Cie. Kg Versenkbarer Bedienknebel für ein Haushaltsgerät mit einer Welle zur Ankoppelung an einen Energiesteller, Wahlschalter oder dergleichen
US8944057B2 (en) 2008-09-17 2015-02-03 Resmed Limited Method and apparatus for controlling a CPAP device
US10739011B2 (en) 2018-09-19 2020-08-11 Midea Group Co., Ltd. Retracting and extending control selectors

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3100404A (en) * 1961-07-13 1963-08-13 Whirlpool Co Retractable knob device
FR1419775A (fr) * 1964-10-19 1965-12-03 Procedes Sauter Manette de commande rotative pour appareil ménager
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
JPS5930988Y2 (ja) * 1980-11-19 1984-09-03 アルプス電気株式会社 押釦操作軸のプッシュ・プッシュ機構

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2217312A4 (de) * 2007-11-05 2017-12-06 ResMed Ltd. Belüftungssystem und steuerung dafür

Also Published As

Publication number Publication date
AU1734483A (en) 1984-03-01
DE3379435D1 (en) 1989-04-20
EP0102332A3 (en) 1985-08-14
EP0102332A2 (de) 1984-03-07
EP0102332B1 (de) 1989-03-15

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