EP0409342B1 - Befestigungssystem für eine Schwenktaste und dieses System verwendendes Gerät - Google Patents

Befestigungssystem für eine Schwenktaste und dieses System verwendendes Gerät Download PDF

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Publication number
EP0409342B1
EP0409342B1 EP90201928A EP90201928A EP0409342B1 EP 0409342 B1 EP0409342 B1 EP 0409342B1 EP 90201928 A EP90201928 A EP 90201928A EP 90201928 A EP90201928 A EP 90201928A EP 0409342 B1 EP0409342 B1 EP 0409342B1
Authority
EP
European Patent Office
Prior art keywords
button
support
fastening system
rest position
strip
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
EP90201928A
Other languages
English (en)
French (fr)
Other versions
EP0409342A1 (de
Inventor
Pierre Societe Civile S.P.I.D. Guilleminot
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.)
Philips Electronique Gran Public
Koninklijke Philips NV
Original Assignee
Philips Electronique Gran Public
Koninklijke Philips Electronics NV
Philips Electronics NV
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 Philips Electronique Gran Public, Koninklijke Philips Electronics NV, Philips Electronics NV filed Critical Philips Electronique Gran Public
Publication of EP0409342A1 publication Critical patent/EP0409342A1/de
Application granted granted Critical
Publication of EP0409342B1 publication Critical patent/EP0409342B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
    • H01H21/02—Details
    • H01H21/18—Movable parts; Contacts mounted thereon
    • H01H21/22—Operating parts, e.g. handle
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/036—Return force
    • H01H2221/044—Elastic part on actuator or casing

Definitions

  • the present invention relates to a system for fixing a control key on a support, said key being substantially flat, and having a freedom of movement of the piano type with a rest position and a control position, said key comprising a strip provided with a spoiler situated at a distance from the plane of the key at least equal to the thickness of the support, while the said support is provided with an opening which crosses its thickness so that the spoiler snaps onto the rear of the support after elastic penetration of the lamella into the opening of the support constitutes a means for positioning the button in its rest position on the support, return means for returning the button to the rest position after a control operation by pressing the key, and stops which prevent excessive insertion of the key into the support.
  • Such control keys are used in audio and video devices, in particular car radios to control the various adjustments: tone, sound, ...; such a button acts, for example, on a switch which delivers a pulse each time the button is pressed.
  • a system in accordance with the preamble is known from US Pat. No. 4,689,455 (Watanabe).
  • the system according to this patent comprises a button provided with a strip ensuring the positioning of the button.
  • the means for returning the key to the rest position consist of an elastic link between the strip and the key.
  • the present invention aims to ensure that the button fixing system can best meet functional and aesthetic constraints including: large number of operations, positioning accuracy relative to the aesthetic facade, possibility of lighting by the inside the device, absence of mechanical noise in vibration.
  • a fixing system in accordance with the preamble is particularly remarkable in that the opening of the support is in the form of a flattened T, in that the said button is provided with two other strips made of an elastic material, contiguous to the first and located on each side of the latter in the same plane perpendicular to the plane of the fingerboard, the assembly being arranged so that after elastic penetration of the central strip in the leg of the T and simultaneously of the two lateral strips in the wings of the T, the two lateral blades are supported in the wings of the T to constitute the said return means.
  • Such a system is also very simple, inexpensive, easy to assemble and disassemble.
  • it includes constraint means for putting said elastic strips in tension so that the positioning in the rest position does not include any play.
  • said stressing means consist of an additional thickness disposed on the central strip.
  • the stops which prevent excessive introduction of the key into the support are carried by the two lateral blades.
  • said key further comprises a lower positioning tab made of elastic material perpendicular to the plane of the key, and provided with a snap-on spoiler for, by cooperating with a support opening, specifying the determination of the said rest position.
  • the key is, in a way, subjected to a second preload which ensures perfect reproducibility of the rest position; this is essential in the general case where the key is a plastic part molded in a mold with several indentations and when several keys are mounted side by side.
  • Figure 1 shows the principle of the key and the support.
  • Figure 2 shows, in section, the mounting system mounted.
  • the support SU has, throughout its thickness, an opening ET in the form of a flattened 'T'.
  • the TO key is operated by pressure exerted on the flat surface SP; this surface can obviously have other aspects than that shown.
  • the key is provided with 3 strips L1, LC, L2 substantially perpendicular to the flat surface and having a thickness thin enough for the strips to be elastic.
  • the thickness of the wings of the support T is slightly greater than the thickness of the side blades L1 and L2 so that they can penetrate it with the minimum of play; to facilitate the introduction of the key, provision may be made for slightly bevelling the end of the strips L1, L2 both in thickness and in width.
  • the central strip LC is provided at its free end with a spoiler BE arranged to snap onto the support SU; for this purpose it is not wider than the leg of the T so that, during assembly of the system, the central strip folds down to pass the spoiler BE then returns to place for snap-fastening.
  • the side slats are here provided with BUT side stops which prevent excessive introduction of the TO key into the support SU, thus the key is well positioned in depth by the spoiler BE and the BUT stops; other arrangements of the stops are also possible.
  • the central strip LC has a slight excess thickness SEP next to the spoiler; after mounting, this extra thickness slightly spreads the central strip LC from the upper wall of the 'T' which has the effect of prestressing the elastic strips.
  • SEP the thickness of the central strip LC
  • the key does not wiggle in its housing in the event of vibration.
  • Figure 2 shows an actual mounting example while Figure 1 rather shows the principle of operation.
  • an FA facade is shown; it may happen that the facade and the support are only one and the same piece without modifying the principle of the positioning system according to the invention.
  • the TO key in Figure 2 has an external appearance - rounded edges with skirt - more 'commercial' than that in Figure 1, but functionally it is the same.
  • the central lamella LC with its spoiler BE is snapped into the opening AND of the support SU.
  • the side slats are not visible in Figure 2.
  • the position shown is the rest position.
  • the TEC control pin When the key is pressed, the TEC control pin actuates the SW switch. They are here symbolically represented to show that it only takes a short stroke to perform the function of the piano-type movement.
  • the elastic strips constitute the means for returning the control position to the rest position.
  • the TO key in FIG. 2 also has a lower tab PI which, similar to the spoiler BE, snaps into the support SU.
  • the role of the paw PI is only to precisely fix the rest position because it is arranged to constrain, without excess, the elastic strips.
  • the position of the TO key with respect to the FA facade could be different from one key to another due to manufacturing dispersions, in particular with multi-cavity molds.
  • such a fixing system has been produced with a plastic button 15x15 mm with strips of which the thickness is 0.7 mm, the width of 2.5 mm and the length of 6 mm.
  • the fixing system according to the invention occupies little space and, therefore, it is possible to light the button from the rear with, for example, an AM bulb.
  • the area of the support marked LU prefferably be empty, or translucent, for the light emitted by the bulb AM to illuminate the key from the rear to reveal an inscription or a drawing.

Landscapes

  • Push-Button Switches (AREA)
  • Electrophonic Musical Instruments (AREA)

Claims (6)

  1. System zur Befestigung einer Funktionstaste (SP) auf einem Träger, wobei die Taste im wesentlichen plan ist und eine Bewegungsfreiheit vom Piano-Typ hat, mit einer Ruhelage und einer Betätigungslage, wobei die genannte Taste eine mit einer Deckplatte (BE) versehene Lamelle (LC) hat, die von der Ebene der Taste einen Abstand hat, der mindestens gleich der Dicke des Trägers ist, während der genannte Träger über seine gesamte Dicke mit einer Öffnung versehen ist, damit die Deckplatte durch Einrasten am hinteren Teil des Trägers nach elastischem Einführen der Lamelle in die genannte Öffnung ein Positionierungsmittel für die Taste in ihrer Ruhelage bildet, sowie Rückholmittel, um nach einem Betätigungsvorgang durch Drücken der Taste die Taste in ihre Ruhelage zurückzuholen und Anschläge (BUT), die ein übermäßiges Eindrücken der Taste in den Träger verhindern, dadurch gekennzeichnet, daß die Öffnung des Trägers (ET) die Form eines abgeflachten T hat, und daß die genannte Taste von zwei weiteren Lamellen (L1, L2) aus elastischem Material versehen ist, die mit der ersten verbunden sind und zu beiden Seiten dieser letzteren in einer gleichen Ebene senkrecht zur Ebene der Taste liegen, wobei das Ganze so ausgeführt ist, daß nach elastischem Einführen der mittleren Lamelle (LC) in den Fuß des T und gleichzeitig der beiden seitlichen Lamellen (L1, L2) in die Arme des T die beiden seitlichen Lamellen (L1, L2) in den Armen des T lagern, um die genannten Rückholmittel zu bilden.
  2. Befestigungssystem nach Anspruch 1, dadurch gekennzeichnet, daß es Spannungsmittel umfaßt, um die genannten elastischem Lamellen (L1, L2) so zu spannen, daß die Positionierung in Ruhelage kein Spiel aufweist.
  3. Befestigungssystem nach Anspruch 2, dadurch gekennzeichnet, daß die genannten Spannungsmittel durch eine auf der mittleren Lamelle angebrachte Überdicke (SEP) gebildet werden.
  4. Befestigungssystem nach einem der Ansprüche 1 bis 3, dadurch gekenn zeichnet, daß die Anschläge (BUT), die ein übermäßiges Eindrücken der Taste in den Träger verhindern, von den beiden seitlichen Lamellen getragen werden.
  5. Befestigungssystem nach einem der Ansprüche 1 bis 4, dadurch gekenn zeichnet, daß die Taste außerdem mindestens eine untere Positionierungskrempe (PI) aus elastischem Material umfaßt, die senkrecht zur Ebene der Taste liegt und mit einer Einrastplatte versehen ist, um im Zusammenwirken mit einer Öffnung des Trägers die Bestimmung der genannten Ruhelage zu präzisieren.
  6. Audiogerät, Videogerät, insbesondere Autoradio, mit mindestens einem Befestigungssystem nach einem der vorhergehenden Ansprüche.
EP90201928A 1989-07-21 1990-07-16 Befestigungssystem für eine Schwenktaste und dieses System verwendendes Gerät Expired - Lifetime EP0409342B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8909884A FR2650117B1 (fr) 1989-07-21 1989-07-21 Systeme de fixation d'une touche a mouvement piano et appareil l'utilisant
FR8909884 1989-07-21

Publications (2)

Publication Number Publication Date
EP0409342A1 EP0409342A1 (de) 1991-01-23
EP0409342B1 true EP0409342B1 (de) 1995-05-24

Family

ID=9384035

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90201928A Expired - Lifetime EP0409342B1 (de) 1989-07-21 1990-07-16 Befestigungssystem für eine Schwenktaste und dieses System verwendendes Gerät

Country Status (5)

Country Link
US (1) US5087802A (de)
EP (1) EP0409342B1 (de)
JP (1) JPH0359917A (de)
DE (1) DE69019618T2 (de)
FR (1) FR2650117B1 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9001186U1 (de) * 1990-02-02 1990-05-17 S.W.E.C. Schmitt-Walter Engineering Consult, 82008 Unterhaching Leuchttastschalter
FR2670949A1 (fr) * 1990-12-21 1992-06-26 Philips Electro Grand Public Systeme de fixation d'une touche a mouvement piano et appareil l'utilisant.
US5844203A (en) * 1995-10-06 1998-12-01 Black & Decker Inc. Combined switch actuator and signal light transmitter for an iron
US20040042623A1 (en) * 2002-08-28 2004-03-04 Thomas Allan Zapalski Modular bezel design for an automotive entertainment system
US6933454B2 (en) * 2003-09-19 2005-08-23 Matsushita Electric Industrial Co., Ltd. Switching apparatus and vehicle-mounted electronic apparatus having the switching apparatus assembled therein
JP2006210191A (ja) * 2005-01-28 2006-08-10 Orion Denki Kk 操作ボタンを備えた電子機器
US7320146B2 (en) * 2005-05-12 2008-01-22 Sloan Valve Company Sensor plate for electronic flushometer
US8222549B2 (en) * 2006-03-09 2012-07-17 Lear Corporation Input control module with adaptive actuators
JP5842527B2 (ja) * 2011-10-14 2016-01-13 オムロン株式会社 押ボタンスイッチおよびこれを用いた電子機器
CN107154253A (zh) * 2017-06-29 2017-09-12 得理乐器(珠海)有限公司 用于键盘乐器的防止机震的按钮机构
CN109936760B (zh) * 2019-03-29 2021-07-09 深圳市九洲电器有限公司 一种机顶盒

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2148804C2 (de) * 1971-09-30 1978-05-11 Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig, 8510 Fuerth Drucktastenschalter, insbesondere mehrfach-drucktastenschalter
US3800104A (en) * 1972-11-13 1974-03-26 Becton Dickinson Co Low profile keyboard switch assembly with snap action cantilever contact
DE7624166U1 (de) * 1976-07-31 1977-01-27 Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt Druckschalter
US4387282A (en) * 1981-03-06 1983-06-07 Motorola Inc. Electrical switch assembly
KR900002951B1 (ko) * 1985-01-25 1990-05-03 마쯔시다덴기산교 가부시기가이샤 푸시버튼장치
US4786766A (en) * 1985-08-26 1988-11-22 Canon Kabushiki Kaisha Keyboard apparatus
JP2517932Y2 (ja) * 1988-05-31 1996-11-20 三菱電機株式会社 スイツチ作動用押しボタン装置

Also Published As

Publication number Publication date
US5087802A (en) 1992-02-11
JPH0359917A (ja) 1991-03-14
FR2650117A1 (fr) 1991-01-25
EP0409342A1 (de) 1991-01-23
FR2650117B1 (fr) 1991-10-11
DE69019618T2 (de) 1996-01-18
DE69019618D1 (de) 1995-06-29

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