EP2328162A1 - Interrupteur à manette pour appareils électroménagers - Google Patents

Interrupteur à manette pour appareils électroménagers Download PDF

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Publication number
EP2328162A1
EP2328162A1 EP09177049A EP09177049A EP2328162A1 EP 2328162 A1 EP2328162 A1 EP 2328162A1 EP 09177049 A EP09177049 A EP 09177049A EP 09177049 A EP09177049 A EP 09177049A EP 2328162 A1 EP2328162 A1 EP 2328162A1
Authority
EP
European Patent Office
Prior art keywords
rotary handle
rotary
rotary switch
rolling
handle
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Withdrawn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
EP09177049A
Other languages
German (de)
English (en)
Inventor
Willi Schwarz
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.)
Hurst and Schroder GmbH
Original Assignee
Hurst and Schroder GmbH
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 Hurst and Schroder GmbH filed Critical Hurst and Schroder GmbH
Priority to EP09177049A priority Critical patent/EP2328162A1/fr
Publication of EP2328162A1 publication Critical patent/EP2328162A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • 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
    • H01H3/60—Mechanical arrangements for preventing or damping vibration or shock
    • 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
    • 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
    • H01H3/20—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch wherein an auxiliary movement thereof, or of an attachment thereto, is necessary before the main movement is possible or effective, e.g. for unlatching, for coupling

Definitions

  • the invention relates to a rotary switch for household electrical appliances for installation in a wall of the household appliance, with a handle formed in the form of a handle and movable between a lowered position and an operating position rotary handle which is rotatably connected to a sleeve-like sliding element, one with a switching or actuator of the Domestic appliance coupled carrier element, which is slidably received in the sleeve-like sliding element, a restoring force and exercising the rotary handle in the direction of the operating position pressing return element, and a displacement movement of the rotary handle from the lowered position in the operating position damping damping element.
  • Such rotary switches with multiple switching positions are used, for example, for electric stoves for switching on the hotplates and the oven and are usually retractable mounted in a control panel to protect them from damage or contamination, while the household appliance is not used.
  • a rotary switch of the type mentioned is, for example, from DE 195 45 994 A1 known.
  • a rotary handle against the restoring force of a restoring element in the axial direction can be pressed and retracted, for example, in a panel of the household appliance. Due to the restoring force of the rotary handle is usually pushed out by briefly pressing automatically from the lowered position into the operating position. During this movement, switching noises occur, which must be avoided or at least minimized.
  • the rotary switch is heavily loaded in this jerky extension movement and there is a risk of overloading and detachment of the rotary handle, which can lead to damage of the rotary switch in the worst case.
  • the invention has for its object to provide a solution that provides a simplified and improved rotary switch in a structurally simple manner and cost.
  • the damping element comprises a rotatably mounted on the support member rolling element, which rolls during a sliding movement of the rotary handle on a rolling surface and during the Movement of the rotary handle from the lowered position into the operating position exerts a restoring force of the restoring element counteracting frictional force.
  • the invention provides in a simple and cost-effective way a possibility with which the extension speed of the rotary handle is reduced, disturbing switching noises are reduced and the wear of the individual components is reduced.
  • the frictional force due to the rolling friction or the rolling resistance of the rolling element counteracts the restoring force of the return element and ensures that the rotary handle is braked in a movement from the lowered position to the operating position in its extension speed and thus damped transferred to the operating position. This reduces the risk of unintentional detachment and damage to the twist grip due to excessive load.
  • the rotary switch according to the invention has no known as from the prior art temperature dependence.
  • the rolling surface is formed on an inner surface of the sleeve-like sliding element or as part of the inner surface of the sleeve-like sliding element.
  • the rolling surface is formed substantially parallel to the sliding movement of the rotary handle. In this way, the damping of the extension movement of the rotary handle in the operating position with substantially constant rolling friction force. Further, thereby the frictional force of the rolling element is substantially independent of the position of the rotary handle.
  • the invention provides that the rolling surface in the direction of the sliding movement of the rotary handle in the form of an inclined surface with a slope, which preferably has an angle between 1 ° and 5 °, is formed.
  • the extension movement of the rotary handle takes place in the operating position due to the to be overcome slope with increasing rolling friction force and consequently damped.
  • the rolling element is mounted elastically movable substantially perpendicular to the displacement movement of the rotary handle.
  • the rolling element can be resiliently mounted so that the rolling resistance can be controlled or regulated by adjusting the spring force.
  • the invention provides in a further embodiment that the rolling element consists of a thermoplastic, preferably PET, or a metallic material ,
  • a retaining element is provided, so that the return element moves the rotary handle from the lowered position into the operating position by exerting the restoring force after releasing the retaining element.
  • the rotary handle is rotatable about an axis of rotation at least in the operating position. It is also conceivable that the rotary handle is rotatable both in the operating position, ie in the extended position, as well as in the lowered position.
  • the carrier element has a slide control for guiding the displacement movement of the sliding element on the carrier element.
  • the link control comprises a groove formed in the sliding element and a sliding element which couples the sliding element and the carrier element.
  • the invention provides in a further embodiment before, that the gate has the holding element, wherein the return element may be a coil spring. Manufacturing technology is particularly simple and inexpensive, if further the rotary handle, the sliding element and the carrier element are formed as plastic injection molded parts or consist of a metallic material.
  • FIGS. 1 to 4 show a retractable rotary switch 1 for adjusting behind a switch panel 2 arranged switching and / or actuators in household appliances, such as stoves, washing machines, dishwashers or the like.
  • the rotary switch 1 comprises a rotary handle 3 with a setting scale not shown in more detail in the figures and is rotatably connected to a sliding element 4 or plugged together with this.
  • a rotary handle 3 in one piece with the sliding element 4, wherein it is preferred for reasons of the manufacturing process to couple the rotary handle 3 by means of a coupling means with the sliding element 4 in the manner of a plug connection.
  • the rotary switch 1 further comprises a switchable with a switching or actuator of the household appliance carrier element 5 and designed as a spiral spring return element 6.
  • the rotary handle 3, the sliding element 4 and the carrier element 5 may be formed as plastic injection molded parts.
  • the cap-like rotary handle 3 is formed in the form of a handle with scale and against the restoring force of the return element 6, which may be a compression spring, between an operating position in which the rotary handle 3 protrudes from the switch panel 2 ( FIG. 3 ), and a sinking position or Verrast ein in which the rotary handle 3 is recessed in the switch panel 2 or flush with this ( FIG. 4 ), movable.
  • the sliding element 4 is formed in the manner of a sleeve with a cavity, so that during the sliding movement between the operating position and the lowered position of the firmly connected to the sliding element 4 rotary handle 3 on the carrier element 5 against the restoring force of the return element 6 in the longitudinal direction of the rotary switch 1 and .
  • the return element 6 is attached or fixed at one of its two ends to the rotary handle 3 on a projection 8 formed there.
  • the other end of the return element 6 is also attached to a lug 9, which is formed on the rotary handle 3 facing the end of the support member 5.
  • a part of the return element 6 is about a from the approach 9 in Direction of the rotary handle 3 extending pin 10 pushed and passed through this pin 10.
  • the support member 5 has at its end facing away from the rotary handle 3, a coupling means 11 to the rotary switch 1 with behind the switch panel 2 arranged switching or actuators of the household appliance, which are not shown in the figures, to couple.
  • the connection between the coupling means 11 and the switching or actuators can be executed positively and / or non-positively, with known plug-in, Verrast- and / or locking connections can be considered.
  • the switching or setting by the rotary switch 1 takes place by turning the rotary handle 3.
  • the rotary switch 1 at least in the operating position, ie in the disengaged position, about the axis 7 (rotation axis) rotatable.
  • the rotary switch 1 in addition in the lowered position, in which the cap-shaped rotary handle 3 is flush with the switch panel 2, is rotatable about the axis 7.
  • the return element 6 In the in FIG. 3 illustrated operating position of the rotary switch 1, the return element 6 is relaxed and exerts no force on the rotary handle 3.
  • the sliding element 4 has guide grooves 12 formed in its inner surface, into which corresponding webs 13 of the carrier element 5 are inserted.
  • the rotary handle 3 is pressed in the sliding movement from the operating position in the lowered position on the actual sinking position addition, whereby the locking of the rotary handle 3 takes place in the lowered position.
  • the displacement movement from the lowered position into the operating position also takes place by pressing the rotary handle 3 on the actual lowered position, whereby the locking of the rotary handle 3 is released and the restoring force of the return element 6 connected to the sliding element 4 rotary handle 3 on the support member 5 in the direction of Operating position moves.
  • the slide control 14 also serves to guide the sliding movement of the sliding element 4 on the carrier element 5.
  • the gate control 14 comprises a groove 15 formed in the lateral surface of the carrier element 5 and a gate 16 which is movable in the groove track 15 and guided therein, which couple the movement of the sliding element 4 and the carrier element 5.
  • the guided in the groove track 15 end of the gate 16 corresponds to a holding element 17, by which the rotary handle 3 can be kept locked in the lowered position.
  • the groove track 15 comprises a so-called Verrast Vietnamese 24, in which the retaining element 17 of the gate 16 is acted upon by the restoring force of the return element 6, which can lock the gate on reaching the Verrastiss 24 in lowered position of the rotary handle 3.
  • the displacement movement from the operating position into the lowered position is effected by pressing the rotary handle 3 on the sinking position, which causes the holding element 17 of the gate 16 is guided by guidance in the groove track 15 in the Verrast Vietnamese 24, in which the pin as the backdrop 16 trained holding member 17 is held locked by the restoring force of the return element 6.
  • the displacement movement from the lowered position into the operating position is then also by pressing the Turning handle 3 beyond the actual sinking position, whereby the holding element 17 is released from the latching position and the return element 6 moves the sliding element 4 on the carrier element 5 in the direction of the operating position.
  • the restoring force of the return element 6 causes after loosening of the retaining element 17, the movement of the rotary handle 3 from the lowered position into the operating position, the rotary handle 3 and the sliding element 4 between the lowered position and the operating position substantially linear or straight along a substantially parallel to Axis 7 extending movement direction is moved.
  • the inner surface of the groove track 15 may be provided with a lubricant or a special grease.
  • the invention provides a damping element 18, the jerky sliding movement of the rotary handle 3 of or attenuates from the lowered position into the operating position and reduces the extension speed of the rotary handle 3.
  • the damping element 18 comprises a rolling element 19, which is arranged in a recess 20 formed in the carrier element 5 and is rotatably mounted there.
  • the in the Figures 2 . 3 and 4 apparent recess 20 is formed on the groove track 15 opposite side of the lateral surface of the support member 5. Conceivable, however, are other arrangements.
  • the rolling element 19 has a rolling surface 21 and corresponding bearing journals 22 for rotatable mounting.
  • the outer peripheral surface of the rolling surface 21 of the rolling element 19 protrudes minimally from the recess 20.
  • the rolling surface 21 of the rolling element 19 may consist of a thermoplastic material, preferably PET, which is a suitable material for the particular temperatures occurring in cooking appliances and its Maintains functionality even at temperatures of about 80 ° C. It is also conceivable that the rolling surface 21 and / or the entire rolling element 19 including the rolling surface 21 made of a metallic material or other suitable material.
  • the damping element 18 further comprises a rolling surface 23 which is on the inner surface of the sliding element 5 or part of the inner surface of the sliding element 5.
  • a rolling surface 23 which is on the inner surface of the sliding element 5 or part of the inner surface of the sliding element 5.
  • the rolling element 19 exerts a frictional force counteracting the restoring force of the restoring element 6, whereby the rotary handle 3 experiences a damping force during its extension movement into the operating position and the extension speed is reduced.
  • This frictional force exerted by the rolling element 19 corresponds to the rolling resistance of the rolling element 19 when rolling on the rolling surface 23 and thus the deformation resistance of the rolling element 19 rolling off. It follows that the rolling resistance and thus the effective frictional force of the hardness of the material of the rolling surface 21st of the rolling element 19 is dependent. A hard material would hardly deform and thus exert only a low frictional force, so that the damping of the sliding movement would be low. In contrast, a soft material of the rolling surface 21, which is slightly deformed during the sliding movement, cause greater rolling resistance and thus exert a greater frictional force, which counteracts the restoring force of the return element 6.
  • the rolling resistance also depends on the geometry of the rolling surface 21.
  • the rolling surface 21 has a circular cross-section. Conceivable, however, are other, different from the circular shape Cross-sectional shapes that allow rolling of the rolling element 19 on the rolling surface 23, such as an elliptical or oval cross-sectional shape. It only has to be ensured that the rolling element 19 can roll off the lowered position into the operating position on the rolling surface 23 during the entire displacement movement.
  • the displacement when extending the rotary handle 3 is about 18mm, wherein of the rolling element 19, a rolling resistance of about five Newton (5N) is generated.
  • the rolling resistance or the frictional force of the rolling element 19 is substantially independent of the position of the rotary handle 3, whereas the restoring force of the return element 6 is obviously dependent on the position of the rotary handle 3, because from the position of the rotary handle 3 results in the potential energy as Spiral spring formed return element 6, which is compressed in the movement in the lowered position.
  • the restoring force of the return element 6 increases, because in the process the kinetic energy is converted into potential spring energy.
  • the frictional force of the rolling element 19 is negligible in this movement, i.
  • the damping force of the damping element 18 acts only damping in the movement from the lowered position to the operating position of the rotary handle 3.
  • the damping element 18 thus intercepts a shock-like force at the end of the movement of the rotary handle 3, wherein the rotary handle 3 has its maximum speed at the end of the movement ,
  • the rolling surface 23 extends in the in the FIGS. 3 and 4 illustrated embodiment, substantially parallel to the sliding movement of the fixedly connected to the rotary handle 3 sliding element 4.
  • the rolling surface 23 'in another embodiment, the in FIG. 5 is shown formed with a slope or a slope as an inclined surface 25 to the restoring force of the return element 6 counteracting frictional force in the Movement from the lowered position into the operating position continues to increase.
  • the inclined surface 25 has a slope in the direction of the rotary handle 3 facing away from the end of the sliding element 4.
  • the rolling element 19 is stationary in the sliding movement of the lowered position into the operating position, wherein a sliding movement of the sliding element 4 takes place on the carrier element 5, wherein the rolling element 19 rolls on the moving or sliding rolling surface 23.
  • the slope of the inclined surface 25 has an angle ⁇ between 1 ° and 5 °, wherein the in FIG. 5 shown angle is exaggerated for better illustration.
  • the angle ⁇ can also be selected to be greater depending on the material used for the rolling surface 21 and, for example, be up to 10 °. It is also conceivable, the slope not linear but curved form.
  • the rolling element 19 During its movement along the rolling surface 23 'or the inclined surface 25, the rolling element 19 must be in constant contact with the rolling surface 23'.
  • the rolling element 19 can be mounted in a further embodiment of the alternative embodiment perpendicular to the sliding movement of the rotary handle 3 elastically movable or resilient and rotatable in the carrier element 5, so that at each point of the inclined surface 25 is a contact and thus the Deceleration of the rotary handle 3 required rolling resistance is generated.
  • this moves into the operating position, wherein the rolling element 19 rolls on the inclined surface 25 against the slope with the angle ⁇ .
  • a normal force exerting the inclined surface 25 on the rolling element 19 increases, whereby the extension operation is decelerated.
  • the slide control 14 provides a kind of stop for the end of the extension process, so that a certain bias of the compression spring is maintained at the end of the extension process.
  • the material of the rolling surface 21, the cross-sectional geometry of the rolling surface 21 and the outlet pressure with which the rolling surface 21 rests on the rolling surface 23, are sized and designed so that the entire of Damping element 18 exerted frictional force at any time exceeds the restoring force of the return element 6, because then an extension of the rotary handle 3 would not be guaranteed.
  • the described rolling element 19 reduces and absorbs the jerking force acting on the end of the movement of the rotary handle 3 when reaching the operating position from the lowered position and thus prevents detachment or damage of the rotary handle.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
EP09177049A 2009-11-25 2009-11-25 Interrupteur à manette pour appareils électroménagers Withdrawn EP2328162A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09177049A EP2328162A1 (fr) 2009-11-25 2009-11-25 Interrupteur à manette pour appareils électroménagers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09177049A EP2328162A1 (fr) 2009-11-25 2009-11-25 Interrupteur à manette pour appareils électroménagers

Publications (1)

Publication Number Publication Date
EP2328162A1 true EP2328162A1 (fr) 2011-06-01

Family

ID=42110211

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09177049A Withdrawn EP2328162A1 (fr) 2009-11-25 2009-11-25 Interrupteur à manette pour appareils électroménagers

Country Status (1)

Country Link
EP (1) EP2328162A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2490240A1 (fr) * 2011-02-15 2012-08-22 Delphi Technologies, Inc. Commutateur rotatif avec fonction de poussée
CN110459414A (zh) * 2019-05-09 2019-11-15 厦门宏发汽车电子有限公司 一种有效复位的触点控制机构及开关
CN114121518A (zh) * 2021-11-23 2022-03-01 扬戈科技股份有限公司 主令控制器的回弹复位机构

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19545994A1 (de) 1995-12-09 1997-06-12 Aeg Hausgeraete Gmbh Versenkbare Drehknebeleinheit
DE19725071C1 (de) * 1997-06-13 1998-12-24 Aeg Hausgeraete Gmbh Drehschalter
DE19801300A1 (de) 1998-01-16 1999-07-22 Aeg Hausgeraete Gmbh Versenkbare Drehknebeleinheit
DE19951422A1 (de) 1999-10-26 2001-05-10 Aeg Hausgeraete Gmbh Versenkbare Drehbedieneinheit
EP1528585A2 (fr) * 2003-10-31 2005-05-04 Alps Electric Co., Ltd. Mécanisme d'actionnement combiné
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

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19545994A1 (de) 1995-12-09 1997-06-12 Aeg Hausgeraete Gmbh Versenkbare Drehknebeleinheit
DE19725071C1 (de) * 1997-06-13 1998-12-24 Aeg Hausgeraete Gmbh Drehschalter
DE19801300A1 (de) 1998-01-16 1999-07-22 Aeg Hausgeraete Gmbh Versenkbare Drehknebeleinheit
DE19951422A1 (de) 1999-10-26 2001-05-10 Aeg Hausgeraete Gmbh Versenkbare Drehbedieneinheit
EP1528585A2 (fr) * 2003-10-31 2005-05-04 Alps Electric Co., Ltd. Mécanisme d'actionnement combiné
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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2490240A1 (fr) * 2011-02-15 2012-08-22 Delphi Technologies, Inc. Commutateur rotatif avec fonction de poussée
CN110459414A (zh) * 2019-05-09 2019-11-15 厦门宏发汽车电子有限公司 一种有效复位的触点控制机构及开关
CN114121518A (zh) * 2021-11-23 2022-03-01 扬戈科技股份有限公司 主令控制器的回弹复位机构

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