EP0927426B2 - Control knob used for household appliances - Google Patents

Control knob used for household appliances Download PDF

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Publication number
EP0927426B2
EP0927426B2 EP97944273A EP97944273A EP0927426B2 EP 0927426 B2 EP0927426 B2 EP 0927426B2 EP 97944273 A EP97944273 A EP 97944273A EP 97944273 A EP97944273 A EP 97944273A EP 0927426 B2 EP0927426 B2 EP 0927426B2
Authority
EP
European Patent Office
Prior art keywords
knob
cap
movement
control knob
control
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
EP97944273A
Other languages
German (de)
French (fr)
Other versions
EP0927426B1 (en
EP0927426A1 (en
Inventor
S. Korkut Avci
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.)
Arcelik AS
Original Assignee
Arcelik AS
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
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Application filed by Arcelik AS filed Critical Arcelik AS
Publication of EP0927426A1 publication Critical patent/EP0927426A1/en
Publication of EP0927426B1 publication Critical patent/EP0927426B1/en
Application granted granted Critical
Publication of EP0927426B2 publication Critical patent/EP0927426B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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
    • 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

  • Figure 5 is the section of the control knob as protrubed from the panel showing the locking mechanism.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Mechanical Control Devices (AREA)
  • Cookers (AREA)
  • Feeding And Controlling Fuel (AREA)
  • Switches With Compound Operations (AREA)
  • Push-Button Switches (AREA)

Abstract

The present invention is related to a retractable rotary control knob used in all kinds of electrical household appliances, which protrudes from the control surface when pushed and which may be used for the operation of the components that are commanded by a turning or push-pull rod. The fact that the cylindrical pin (16) operating inside the mechanism movement space (2b) is produced as its integral part and the thin rib (1a) providing the connection of said pin (1b) with the cap (1) are integral parts of the plastic structure used for the cap to form a monobloc component has enabled the realization of the control knob by using less parts as compared with similar systems.

Description

The present invention is related to a retractable rotary control knob used in all kinds of electrical household appliances, which protrudes from the control surface when pushed and which may be used for the operation of the components that are commanded by a turning or push-pull rod.
The knob is flush fitted to the control panel, i. e. it does not protrude from the surface in the system for aesthetic purposes as well as to prevent usage by children. In work position it projects from the panel level towards the direction wherein it is to be used and operates the component to which it is connected at the back of the panel by means of the turning rod.
The turning knob disclosed in the European Patent Application, No EP 9311 0933 describing a control knob according to the preamble of claim 1, consists of a push-pull type control mechanism or knob, an end piece to be connected with the said panel and another part to operate with the control device by being torsioned. This part co-operates with the control element and the said end piece is connected with a body (1) that is axially movable along said part against the action of a spring and coperating torsionally therewith. The part cooperating with the control element is arranged movable relative to the longitudinal axis of the knob, within a cavity in the end part of the knob; there being provided with axial retention means preventing said member from escaping off the cavity while enabling it to undergo said movement.
In the European Patent Application No. EP 94103552, the rotary knob mounted on the external face of a household appliance, is integral with an axially slidable control shaft which is moved so that a linkage is provided within a seat.
A drive mechanism regulating the sliding motion and stopping of the shaft is provided between the housing and the control shaft. According to the invention a mark-bearer on which certain characteristics are marked and which slides and rotates and is at the first protruding work (ON) position and the second rest (OFF) position together with the shaft is provided.
The mechanism that enables the knob to protrude from the control panel surface, consists of at least four parts one of which is spring. These knobs are formed by a part providing the connection between the component being controlled by making a rotary movement through a cavity or pin connection; on this part, a housing (cavity) having a similar mechanism as that of a ball-point pen; the knob cap by which the users give rotary motion to the knob; and a spring between the cap and the part connected to the component, pushing the knob cover towards the intended direction of usage by means of a metal pin that can move inside the cavity of ball point pen.
The object of the invention is to realize a control knob by which the intended function is provided by using less components as compared to other similar knob mechanisms and that protrudes outwards the control panel surface enough to enable easy-holding of the knob when pushed and that controls the component to which it is connected on the panel.
The control knob according to the invention is shown in the attached drawings, wherein;
Figure 1 is the axonometric view of the control knob in the protrubed i.e. working position.
Figure 2 is the axonometric view of the control knob at the control panel level, i.e. rest position.
Figure 3, is the section of the control knob at the control panel level.
Figure 4, is the section of the control knob as protrubed from the panel, ready to be controlled position.
Figure 5, is the section of the control knob as protrubed from the panel showing the locking mechanism.
Figure 6, is the section of the control knob at the control panel level showing the locking mechanism.
The corresponding reference numbers of the components are as follows:
  • 1) Knob cap
  • 1a) Thin rib (leaf blade)
  • 1b) Cylindrical pin at the end of the rib
  • 1c) side surface of the knob cap
  • 2) Knob housing part
  • 2a) Plastic component coupling pin in the structure of knob housing part
  • 2b) Housing in which the mechanism mover
  • 2c) Retaining
  • 2d) Humps (obstructions) preventing reversal motion
  • 2e) Plain (flat) surface wherein the housing is.
  • 3) Mechanism spring that provident the movement
  • 4) Control panel surface
    • The control knob according to the invention consists of three parts, namely a knob cap (1) a knob housing part (2) and a spring (3) enabling the mechanism to move. The shape of knob housing (2) enables a part of it to operate as a component coupling pin (2a). The control knob is connected to the component that it controls by being inserted in it by means of this pin (2a) or by being wound around a pim of the component. When it is on the same level as the control panel surface i.e. at rest position, it is pushed forward in the direction of its rotary axis in order to bring it to a position ready to be controlled by causing it to project from the control panel.
    The knob cap (1) has a housing on the knob housing part (2) connected to the rotor axis of the component, that enables it to slide along the same axis thus providing its forward and backward movement. The internal structure of the section on the surface of the control panel level (4) of this housing may be in any geometric shape that enables the cap to transmit the rotary movement to the knob housing part (2) including the heart shaped mechanism movement space on one side and the knob cap. This spring applies a constant pressure on the knob cap (1) so that the latter protrudes from the control panel surface (4).
    A reduction in the number of parts is provided by producing and using the pin (1b) as monobloc with the plastic structure used for the cap whereas it is used as a separate element in similar applications.
    This cylindrical pin (1b) is connected to the knob-cap (1) by means of its section in the form of a thin rib (1a). This section also has such structural characteristics as flexibility in a degree to enable it to complete its (1b) cycle inside the mechanism movement space (2b) as well as rigidity in a degree to enable it to withstand this motion repeated constantly without breaking.
    During its axial sliding movement, the cylindrical pin (1b) at the end of the thin rib (1a) moves within the mechanism movement space (2b). The humps and obstructions (2d) formed in this space prevents the reversal motion of the cylindrical pin (1b) and provides a one-directional movement.
    Restraining lugs (2c) are used at the plain surface where the movement space (2b) is and at the end point of the opposing surface in order to prevent the escape of the cylindrical pin (1b) from the housing (2b) by the pushing force of the spring and to provide the positioning of the knob-cap. (1) properly when it protrudes from the control panel surface. Instead of these retention lugs, notches that do not obstruct the axial or rotary movement may also be used.
    Marking that positions and that are visible when at "ON" position, may be provided on the side surface (1c) of the knob-cap

    Claims (6)

    1. A rotary control knob, protruding from the control panel surface to a holdable length at working position when pushed and controlling the component to which it is linked at the panel by means of a rotary shaft, characterized in that it consists of three components namely a knob cap (1) including a thin rib (1a) realised as leaf blade and a cylindrical pin (1b) and having a housing wherein the knob housing part (2) can be inserted, a knob housing part (2) consisting of a heart-shaped mechanism movement cavity (2b) on one side and a mechanism spring (3) placed between these two elements, providing the movement.
    2. A control knob according to claim 1, characterized in that the cylindrical pin (16) operating inside the mechanism movement space (2b) and the thin rib (1a) providing the connection of the said pin (1b) with the cap (1) are integral parts of the plastic structure used for the cap and form a monobloc component together with the cap.
    3. A control knob according to Claims 1 and 2, characterized in that retention lugs (2c) or notches that will not obstruct the axial or rotary movement are used on the plain surface (2e) where the movement space (2b) is provided and at the end point on the opposing surface in order to prevent the cylindrical pin (1b) from escaping off the housing (2b) due to the pushing force of the spring and to provide the proper positioning of the knob cap (1) when it is protruded from the control panel surface, i.e. at working position.
    4. A control knob according to claims 1 to 3, characterized in that humps and obstructions are formed preventing the reversal movement of the cylindrical pin (1b) inside the mechanism movement space (2b) in order to enable it to complete its cycle within the said space (2b) by moving in one direction.
    5. A control knob according to claims 1 to 4, characterized in that the pin (1b) may be in any geometrical structure.
    6. A control knob according to claim 1, characterized in that the internal structure of the housing section on the control panel surface (4) plane of the knob-cap (1) is in any geometrical shape that enables the cap to transfer the rotary movement to the knob housing part (2) in the same ratio and to provide the axial sliding movement.
    EP97944273A 1996-09-12 1997-09-12 Control knob used for household appliances Expired - Lifetime EP0927426B2 (en)

    Applications Claiming Priority (3)

    Application Number Priority Date Filing Date Title
    TR9600723 1996-09-12
    TR96/00723A TR199600723A2 (en) 1996-09-12 1996-09-12 Control button used in home appliances.
    PCT/TR1997/000014 WO1998011574A1 (en) 1996-09-12 1997-09-12 Control knob used for household appliances

    Publications (3)

    Publication Number Publication Date
    EP0927426A1 EP0927426A1 (en) 1999-07-07
    EP0927426B1 EP0927426B1 (en) 2002-03-27
    EP0927426B2 true EP0927426B2 (en) 2005-05-11

    Family

    ID=21620917

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP97944273A Expired - Lifetime EP0927426B2 (en) 1996-09-12 1997-09-12 Control knob used for household appliances

    Country Status (6)

    Country Link
    EP (1) EP0927426B2 (en)
    AT (1) ATE215260T1 (en)
    AU (1) AU4580797A (en)
    DE (1) DE69711405T3 (en)
    TR (1) TR199600723A2 (en)
    WO (1) WO1998011574A1 (en)

    Families Citing this family (12)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    EP1712974B1 (en) * 2005-04-13 2008-08-27 Lisi Automotive Rapid Retractable rotating knob of a switch or positioning device, especially of a household appliance
    WO2008039159A1 (en) 2006-09-27 2008-04-03 Ocak Kalip Makina Imalat Sanayi Ve Ticaret Limited Sirketi Reinforced locker in control knob mechanisms
    KR100838566B1 (en) * 2006-12-20 2008-06-19 주식회사 대우일렉트로닉스 Control button of drum washing machine
    DE102007002183A1 (en) 2007-01-15 2008-07-17 BSH Bosch und Siemens Hausgeräte GmbH Storage device for concealable control element for household appliance, has securing device forming containment component for curved member towards guide way of another curve member, and limiting former curve member in its movement
    US9072848B2 (en) 2007-11-05 2015-07-07 Resmed Limited Ventilation system and control thereof
    WO2010031125A1 (en) 2008-09-17 2010-03-25 Resmed Ltd Display and controls for a cpap device
    PL2345053T3 (en) * 2008-10-30 2016-07-29 Arcelik As Retractable rotating knob of a switch device especially of a household appliance
    EP2244152A1 (en) 2009-04-23 2010-10-27 Electrolux Home Products Corporation N.V. Switching and/or adjusting element for an appliance, especially for a domestic appliance
    TR201002246A2 (en) * 2010-03-24 2011-10-21 Bora Bükülmez Mehmet A push pull mechanism.
    EP3063599B1 (en) * 2013-11-01 2019-07-17 Arçelik Anonim Sirketi A household appliance comprising a knob
    EP3125066A3 (en) * 2015-07-31 2017-02-08 BSH Hausgeräte GmbH A cooking device having a control pushbutton
    TR201704416A2 (en) 2017-03-24 2018-03-21 Imren Plastik Sanayi Ve Ticaret Ltd Sirketi A MOTION CONTROL MECHANISM

    Citations (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    EP0366445A2 (en) † 1988-10-26 1990-05-02 New World Domestic Appliances Limited Rotary control knobs
    GB2236380A (en) † 1989-09-25 1991-04-03 Toshiba Kk Retractable operating knobs for washing machines
    US5384442A (en) † 1993-01-05 1995-01-24 Whirlpool Corporation Control knob assembly for a cooking appliance

    Family Cites Families (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE1927901A1 (en) * 1969-05-31 1970-12-03 Sel Kontakt Bauelemente Gmbh Knob
    FR2447060A1 (en) * 1979-01-19 1980-08-14 Thomson Brandt Countersunk rotary control knob for domestic electric appliance etc. - has heart shaped race for retaining ball in outer peripheral surface of inner element
    US5408062A (en) * 1993-06-22 1995-04-18 Augat, Inc. Rotary switch

    Patent Citations (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    EP0366445A2 (en) † 1988-10-26 1990-05-02 New World Domestic Appliances Limited Rotary control knobs
    GB2236380A (en) † 1989-09-25 1991-04-03 Toshiba Kk Retractable operating knobs for washing machines
    US5384442A (en) † 1993-01-05 1995-01-24 Whirlpool Corporation Control knob assembly for a cooking appliance

    Also Published As

    Publication number Publication date
    DE69711405T2 (en) 2002-11-21
    DE69711405T3 (en) 2005-11-24
    WO1998011574A1 (en) 1998-03-19
    AU4580797A (en) 1998-04-02
    TR199600723A2 (en) 1998-04-21
    EP0927426B1 (en) 2002-03-27
    DE69711405D1 (en) 2002-05-02
    EP0927426A1 (en) 1999-07-07
    ATE215260T1 (en) 2002-04-15

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