EP1715497B1 - Operating device with switching mat - Google Patents

Operating device with switching mat Download PDF

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Publication number
EP1715497B1
EP1715497B1 EP20060111973 EP06111973A EP1715497B1 EP 1715497 B1 EP1715497 B1 EP 1715497B1 EP 20060111973 EP20060111973 EP 20060111973 EP 06111973 A EP06111973 A EP 06111973A EP 1715497 B1 EP1715497 B1 EP 1715497B1
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EP
European Patent Office
Prior art keywords
switching mat
operating device
stop
switching
mat
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.)
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Application number
EP20060111973
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German (de)
French (fr)
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EP1715497A3 (en
EP1715497A2 (en
Inventor
Norbert Mankel
Jörg Reinhardt
Stefan Schäfer
Reiner Schmidt
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Continental Automotive GmbH
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Continental Automotive GmbH
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Publication date
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Publication of EP1715497A2 publication Critical patent/EP1715497A2/en
Publication of EP1715497A3 publication Critical patent/EP1715497A3/en
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Publication of EP1715497B1 publication Critical patent/EP1715497B1/en
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Classifications

    • 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
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/702—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
    • H01H13/705—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches characterised by construction, mounting or arrangement of operating parts, e.g. push-buttons or keys
    • 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
    • H01H13/02—Details
    • H01H13/12—Movable parts; Contacts mounted thereon
    • H01H13/14—Operating parts, e.g. push-button
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/02—Bases, casings, or covers
    • H01H2009/0278—Casings containing special noise reduction means, e.g. elastic foam between inner and outer casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2233/00—Key modules
    • H01H2233/01—Key modules mounted on laykey
    • H01H2233/014—Snap coupling
    • H01H2233/016—Snap coupling with limited freedom
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2237/00—Mechanism between key and laykey
    • H01H2237/008—Plunger guided by flexible arms

Definitions

  • the invention relates to an operating device with at least one arranged in a panel and guided pushbutton and a switching mat, wherein the push button acts in an actuating position for closing electrical contacts of a printed circuit board on one of the panel facing side of the switching mat and rests in a rest position on a stop.
  • Such an operating device is for example from the DE 197 26 486 A1 known.
  • a push button which is arranged in a diaphragm, with a dome-shaped protuberance of a switching mat in contact.
  • the switching mat is arranged on a circuit board having two contact points.
  • the dome-shaped protuberance of the switching mat has on the circuit board side facing a contact bridge, so that when depressing the dome-shaped protuberance of the switching mat by the push button, the two contacts are electrically connected to each other and thus closed.
  • the button In a rest position, the button is located on a guide frame belonging to the panel.
  • the object of the invention is therefore to provide an operating device in which a sound largely when the button recovers from the operating position to the rest position is avoided.
  • the object is achieved by an operating device with the features of claim 1.
  • the invention provides to share the already existing switching mat for the purpose of noise reduction and this purpose to form the stop on which the button is in the rest position, by a side facing away from the panel side of the switching mat.
  • the operating device according to the invention thus proposes the key when rewinding from the operating position in the rest position on the keypad.
  • a known switching mat In a generic control device, a known switching mat is used.
  • the safety mat consists essentially of a rubber-elastic material. This elasticity allows, for example, domed protuberances of the switching mat on which the button acts to depress the triggering of the switching process and at the same time ensures that the switching mat returns to its original shape when relieved. If the key strikes the backrest from the operating position in the rest position on such a rubber-elastic material, this results in almost no noise.
  • the switching mat rests in the region of the stop on the panel.
  • the switching mat in the region of the stop but with the side facing the diaphragm, directly to a portion of the diaphragm, while the corresponding opposite, facing away from the panel area, serves as a stop for the button.
  • the key has at least one shaft which engages around the switching mat, a partial region of the shaft engaging behind the switching mat abutting against the stop in the rest position.
  • the shaft can, for example, surround the edge region of a switching mat, wherein, for example, a partial region designed in the form of a latching nose engages behind the switching mat and bears against the switching mat in the rest position.
  • the switching mat has a recess through which the shaft protrudes.
  • This embodiment is particularly advantageous when the operating device has a plurality of push buttons which act on the switching mat. If the shank protrudes through the recess of the switching mat, the partial area which engages behind the switching mat can rest against the side of the switching mat remote from the screen in the rest position. Since the recess can be arranged almost anywhere within the switching mat, a large freedom in terms of design and arrangement of the push button is achieved with this configuration. Since the switching mat usually rests on a large printed circuit board, in this embodiment, the circuit board will have a corresponding recess into which the shaft can at least protrude, and does not hinder the movement of the shaft even when pressing the push button.
  • the switching mat has fixing openings, protrude into the fixing pins. As a result, a simple positioning of the switching mat and diaphragm or push button to each other is achieved.
  • the fixing pins are arranged in particular directly on the panel, for example on the guides for the push button and project into correspondingly adapted fixing openings of the switching mat. In addition to the fixing of the switching mat relative to the panel and pushbutton during assembly thereby in particular a lateral slippage of the switching mat and thus the stop is prevented.
  • the operating device according to the invention can be used particularly advantageously as a motor vehicle component, for example for operating an information and / or entertainment device, an air conditioning system, a hazard warning system, a rear window heater and the like.
  • the operating device according to the invention can also be used in devices in the domestic or industrial sector.
  • FIG. 1 shows a section through an inventive operating device with a button 1, which acts on a switching mat 2 and is arranged and guided in a panel 3.
  • a button 1 which acts on a switching mat 2 and is arranged and guided in a panel 3.
  • controls are arranged, which act at least partially also on the switching mat 2.
  • the panel 3 has side walls 4 which guide the key 1.
  • the button 1 acts on a dome-shaped protuberance 5 of the switching mat 2, wherein upon pressure of an operator on the surface 6 of the button 1, the protuberance 5 is compressed by the key 1. This closes a contact bridge. 7 Contacts on a printed circuit board, not shown here, on which the switching mat 2 rests. In this respect, it is the usual operation of a known pressure switch.
  • the switching mat 2 now also has a recess 8 through which a shaft 9 protrudes.
  • the shaft 9 has a latching nose-like portion 11 which engages behind the switching mat 2 and in the in FIG. 1 shown rest position against a stop 12, which is formed by the side facing away from the panel 3 side 10 of the switching mat 2.
  • the stop 12 is thus according to the invention part of the switching mat 2 and therefore consists of a rubber-elastic material.
  • the switching mat 2 is in the region of the stop 12 with the side facing the panel 13 on the wall 4, which is part of the panel 3.
  • the wall 4 of the diaphragm 2 also has fixing pins, not shown, in the likewise not shown, adapted to the dimensions of the fixing pins fixing holes of Protect switching mat 2 and thus fix the keypad against the panel and the button.
  • the pushbutton 1 has a first shaft 9a and a second shaft 9b, each having partial regions 11a, 11b, which are designed like latching noses.
  • the first shaft 9a and the second shaft 9b project in the in FIG. 1 illustrated manner through an opening of the switching mat 2 through, wherein the portions 11a, 11b respectively abut against a stop 12 of the switching mat.
  • a single shaft 9 is sufficient.
  • the surface 14 of the key 1 acts on the switching mat 2 for generating the switching operation.

Landscapes

  • Push-Button Switches (AREA)

Description

Die Erfindung betrifft eine Bedienvorrichtung mit mindestens einer in einer Blende angeordneten und geführten Drucktaste sowie einer Schaltmatte, wobei die Drucktaste in einer Betätigungsposition zum Schließen elektrischer Kontakte einer Leiterplatte auf eine der Blende zugewandte Seite der Schaltmatte einwirkt und in einer Ruheposition an einem Anschlag anliegt.The invention relates to an operating device with at least one arranged in a panel and guided pushbutton and a switching mat, wherein the push button acts in an actuating position for closing electrical contacts of a printed circuit board on one of the panel facing side of the switching mat and rests in a rest position on a stop.

Eine derartige Bedienvorrichtung ist beispielsweise aus der DE 197 26 486 A1 bekannt. Bei dieser bekannten Ausführungsform steht eine Drucktaste, die in einer Blende angeordnet ist, mit einer domartigen Ausstülpung einer Schaltmatte in Kontakt. Die Schaltmatte ist auf einer Leiterplatte angeordnet, die zwei Kontaktstellen aufweist. Die domartige Ausstülpung der Schaltmatte weist auf der der Leiterplatte zugewandten Seite eine Kontaktbrücke auf, so dass beim Niederdrücken der domartigen Ausstülpung der Schaltmatte durch die Drucktaste die beiden Kontakte elektrisch leitend miteinander verbunden und damit geschlossen werden. In einer Ruheposition liegt die Taste an einem zur Blende gehörenden Führungsgestell an. Die Rückstellung von der Betätigungsposition in die Ruheposition erfolgt durch die auf Grund der elastischen Eigenschaften der domartigen Ausstülpungen der Schaltmatte erzeugte Kraft, wenn ein Benutzer die Taste loslässt. Hierbei schnellt die Taste in die Ruheposition zurück und schlägt dabei an dem zur Blende gehörenden Führungsgestell an. Sind sowohl die Taste als auch das Führungsgestell aus Kunststoff, wie dies üblicherweise der Fall ist, so entsteht hierbei ein Geräusch, das als störend empfunden werden kann.Such an operating device is for example from the DE 197 26 486 A1 known. In this known embodiment, a push button, which is arranged in a diaphragm, with a dome-shaped protuberance of a switching mat in contact. The switching mat is arranged on a circuit board having two contact points. The dome-shaped protuberance of the switching mat has on the circuit board side facing a contact bridge, so that when depressing the dome-shaped protuberance of the switching mat by the push button, the two contacts are electrically connected to each other and thus closed. In a rest position, the button is located on a guide frame belonging to the panel. The return from the actuation position to the rest position is effected by the force generated due to the elastic properties of the dome-like protuberances of the safety mat when a user releases the button. In this case, the key jumps back into the rest position, thereby striking the guide frame belonging to the panel. Are both the key and the guide frame made of plastic, as is usually the case, this creates a noise that can be distracting.

Aus der GB 2 255 234 A ist eine weitere derartige Bedienvorrichtung bekannt, bei der die Drucktaste in der Ruheposition einer Leiterplatte anliegt.From the GB 2 255 234 A is another such control device is known, in which the push-button rests in the rest position of a circuit board.

Aufgabe der Erfindung ist es daher, eine Bedienvorrichtung anzugeben, bei der ein Geräusch beim Zurückschnellen der Taste von der Betätigungsstellung in die Ruhestellung weitgehend vermieden wird. Die Aufgabe wird durch eine Bedienvorrichtung mit den Merkmalen des Anspruchs 1 gelöst.The object of the invention is therefore to provide an operating device in which a sound largely when the button recovers from the operating position to the rest position is avoided. The object is achieved by an operating device with the features of claim 1.

Die Erfindung sieht vor, die ohnehin vorhandene Schaltmatte zum Zwecke der Geräuschdämmung mitzunutzen und hierzu den Anschlag, an dem die Taste in der Ruheposition anliegt, durch eine von der Blende abgewandte Seite der Schaltmatte zu bilden. Bei der erfindungsgemäßen Bedienvorrichtung schlägt somit die Taste beim Zurückschnellen aus der Bedienposition in die Ruheposition an der Schaltmatte an.The invention provides to share the already existing switching mat for the purpose of noise reduction and this purpose to form the stop on which the button is in the rest position, by a side facing away from the panel side of the switching mat. In the operating device according to the invention thus proposes the key when rewinding from the operating position in the rest position on the keypad.

Bei einer gattungsgemäßen Bedienvorrichtung wird eine an sich bekannte Schaltmatte eingesetzt. Die Schaltmatte besteht im Wesentlichen aus einem gummielastischen Material. Diese Elastizität erlaubt es die beispielsweise domartigen Ausstülpungen der Schaltmatte, auf die die Taste einwirkt, zur Auslösung des Schaltvorgangs niederzudrücken und gewährleistet gleichzeitig, dass die Schaltmatte bei Entlastung wieder in ihre ursprüngliche Form zurückkehrt. Schlägt die Taste beim Zurückschnellen aus der Bedienposition in die Ruheposition an einem solchen gummielastischen Material an, so entsteht hierbei nahezu kein Geräusch.In a generic control device, a known switching mat is used. The safety mat consists essentially of a rubber-elastic material. This elasticity allows, for example, domed protuberances of the switching mat on which the button acts to depress the triggering of the switching process and at the same time ensures that the switching mat returns to its original shape when relieved. If the key strikes the backrest from the operating position in the rest position on such a rubber-elastic material, this results in almost no noise.

Hierdurch wird im Wesentlich der gleiche Effekt wie beim Aufbringen von gummiartigen Dämpfungselementen erreicht, gleichzeitig jedoch die Fertigung vereinfacht, da keine zusätzlichen Dämpfungselemente erforderlich sind.As a result, substantially the same effect as in the application of rubber-like damping elements is achieved, but at the same time simplifies the production, since no additional damping elements are required.

In einer bevorzugten Ausführungsform ist vorgesehen, dass die Schaltmatte im Bereich des Anschlags an der Blende anliegt. Hierbei liegt also die Schaltmatte im Bereich des Anschlages, jedoch mit der der Blende zugewandten Seite, direkt an einem Teilbereich der Blende an, während der entsprechende gegenüberliegende, von der Blende abgewandte Bereich, als Anschlag für die Taste dient. Dies hat den Vorteil, dass die an sich elastische Schaltmatte von einem starren Bereich gestützt wird und damit eine wohl definierte Ruhelage der Taste gewährleistet ist.In a preferred embodiment it is provided that the switching mat rests in the region of the stop on the panel. In this case, therefore, the switching mat in the region of the stop, but with the side facing the diaphragm, directly to a portion of the diaphragm, while the corresponding opposite, facing away from the panel area, serves as a stop for the button. This has the advantage that the inherently elastic switching mat is supported by a rigid area and thus a well-defined rest position of the button is guaranteed.

In einer bevorzugten konstruktiven Ausgestaltung ist vorgesehen, dass die Taste mindestens einen die Schaltmatte umgreifenden Schaft aufweist, wobei ein die Schaltmatte hintergreifender Teilbereich des Schaftes in der Ruheposition an dem Anschlag anliegt. Der Schaft kann hierzu beispielsweise den Randbereich einer Schaltmatte umgreifen, wobei beispielsweise ein in Form einer Rastnase ausgebildeter Teilbereich die Schaltmatte hintergreift und in der Ruheposition an der Schaltmatte anliegt. Diese Ausführungsform hat den Vorteil, dass keinerlei Modifikationen an der Schaltmatte erforderlich sind.In a preferred structural embodiment, it is provided that the key has at least one shaft which engages around the switching mat, a partial region of the shaft engaging behind the switching mat abutting against the stop in the rest position. For this purpose, the shaft can, for example, surround the edge region of a switching mat, wherein, for example, a partial region designed in the form of a latching nose engages behind the switching mat and bears against the switching mat in the rest position. This embodiment has the advantage that no modifications to the keypad are required.

In einer weiteren bevorzugten Ausführungsform ist vorgesehen, dass die Schaltmatte eine Ausnehmung aufweist, durch die der Schaft hindurchragt. Diese Ausgestaltung ist besonders dann vorteilhaft, wenn die Bedienvorrichtung mehrere Drucktasten aufweist, die auf die Schaltmatte einwirken. Ragt der Schaft durch die Ausnehmung der Schaltmatte hindurch, so kann auch hier der die Schaltmatte hintergreifende Teilbereich in Ruhelage an der von der Blende abgewandten Seite der Schaltmatte anliegen. Da die Ausnehmung nahezu beliebig innerhalb der Schaltmatte angeordnet werden kann, wird mit dieser Ausgestaltung eine große Freiheit hinsichtlich der Ausgestaltung und Anordnung der Drucktaste erreicht. Da die Schaltmatte in der Regel auf einer großflächigen Leiterplatte aufliegt, wird bei dieser Ausgestaltung auch die Leiterplatte eine entsprechende Ausnehmung aufweisen, in die der Schaft zumindest hineinragen kann, und die die Bewegung des Schaftes auch bei Betätigung der Drucktaste nicht behindert.In a further preferred embodiment, it is provided that the switching mat has a recess through which the shaft protrudes. This embodiment is particularly advantageous when the operating device has a plurality of push buttons which act on the switching mat. If the shank protrudes through the recess of the switching mat, the partial area which engages behind the switching mat can rest against the side of the switching mat remote from the screen in the rest position. Since the recess can be arranged almost anywhere within the switching mat, a large freedom in terms of design and arrangement of the push button is achieved with this configuration. Since the switching mat usually rests on a large printed circuit board, in this embodiment, the circuit board will have a corresponding recess into which the shaft can at least protrude, and does not hinder the movement of the shaft even when pressing the push button.

In einer besonderen Ausführungsform ist vorgesehen, dass die Schaltmatte Fixieröffnungen aufweist, in die Fixierstifte hineinragen. Hierdurch wird eine einfache Positionierung von Schaltmatte und Blende bzw. Drucktaste zueinander erreicht.In a particular embodiment, it is provided that the switching mat has fixing openings, protrude into the fixing pins. As a result, a simple positioning of the switching mat and diaphragm or push button to each other is achieved.

Die Fixierstifte sind insbesondere direkt an der Blende, beispielsweise an den Führungen für die Drucktaste angeordnet und ragen in entsprechend angepasste Fixieröffnungen der Schaltmatte hinein. Neben dem Fixieren der Schaltmatte relativ zur Blende und Drucktaste während der Montage wird hierdurch insbesondere auch ein seitliches Verrutschen der Schaltmatte und damit des Anschlages verhindert.The fixing pins are arranged in particular directly on the panel, for example on the guides for the push button and project into correspondingly adapted fixing openings of the switching mat. In addition to the fixing of the switching mat relative to the panel and pushbutton during assembly thereby in particular a lateral slippage of the switching mat and thus the stop is prevented.

Die erfindungsgemäße Bedienvorrichtung kann besonders vorteilhaft als Kraftfahrzeugkomponente, beispielsweise zum Bedienen eines Informations- und/oder Unterhaltungsgeräts, einer Klimaanlage, einer Warnblinkanlage, einer Heckscheibenheizung und dergleichen eingesetzt werden. Daneben kann die erfindungsgemäße Bedienvorrichtung aber auch bei Geräten im häuslichen oder industriellen Bereich eingesetzt werden.The operating device according to the invention can be used particularly advantageously as a motor vehicle component, for example for operating an information and / or entertainment device, an air conditioning system, a hazard warning system, a rear window heater and the like. In addition, the operating device according to the invention can also be used in devices in the domestic or industrial sector.

Die Erfindung wird nachfolgend anhand eines Ausführungsbeispiels und der Zeichnung näher beschrieben. Es zeigen:

Figur 1
einen Schnitt durch eine erfindungsgemäße Bedienvorrichtung,
Figur 2
einen Schnitt durch eine Drucktaste der Bedienvorrichtung.
The invention will be described below with reference to an embodiment and the drawing. Show it:
FIG. 1
a section through an operating device according to the invention,
FIG. 2
a section through a pushbutton of the operating device.

Figur 1 zeigt einen Schnitt durch eine erfindungsgemäße Bedienvorrichtung mit einer Taste 1, die auf eine Schaltmatte 2 einwirkt und in einer Blende 3 angeordnet und geführt wird. In der Blende 3 sind weitere, hier nicht näher dargestellte Bedienelemente angeordnet, die zumindest teilweise ebenfalls auf die Schaltmatte 2 einwirken. FIG. 1 shows a section through an inventive operating device with a button 1, which acts on a switching mat 2 and is arranged and guided in a panel 3. In the panel 3 more, not shown here controls are arranged, which act at least partially also on the switching mat 2.

Die Blende 3 weist Seitenwände 4 auf, die die Taste 1 führen. Die Taste 1 wirkt auf eine domartige Ausstülpung 5 der Schaltmatte 2 ein, wobei bei Druck eines Bedieners auf die Fläche 6 der Taste 1 die Ausstülpung 5 durch die Taste 1 zusammengedrückt wird. Hierdurch schließt eine Kontaktbrücke 7 Kontakte auf einer hier nicht dargestellten Leiterplatte, auf der die Schaltmatte 2 aufliegt. Insofern handelt es sich um die übliche Funktionsweise eines an sich bekannten Druckschalters.The panel 3 has side walls 4 which guide the key 1. The button 1 acts on a dome-shaped protuberance 5 of the switching mat 2, wherein upon pressure of an operator on the surface 6 of the button 1, the protuberance 5 is compressed by the key 1. This closes a contact bridge. 7 Contacts on a printed circuit board, not shown here, on which the switching mat 2 rests. In this respect, it is the usual operation of a known pressure switch.

Die Schaltmatte 2 weist nun weiterhin eine Ausnehmung 8 auf, durch die ein Schaft 9 hindurchragt. Der Schaft 9 weist einen rastnasenartigen Teilbereich 11 auf, der die Schaltmatte 2 hintergreift und in der in Figur 1 gezeigten Ruheposition an einem Anschlag 12 anliegt, der durch die von der Blende 3 abgewandte Seite 10 der Schaltmatte 2 gebildet wird. Der Anschlag 12 ist somit erfindungsgemäß Bestandteil der Schaltmatte 2 und besteht daher aus einem gummielastischen Material.The switching mat 2 now also has a recess 8 through which a shaft 9 protrudes. The shaft 9 has a latching nose-like portion 11 which engages behind the switching mat 2 and in the in FIG. 1 shown rest position against a stop 12, which is formed by the side facing away from the panel 3 side 10 of the switching mat 2. The stop 12 is thus according to the invention part of the switching mat 2 and therefore consists of a rubber-elastic material.

Wird nun von einem Bediener Kraft auf die Druckfläche 6 der Taste 1 ausgeübt, so wird die Taste entlang der Wände 4 bewegt und der Teilbereich 11 des Schaftes 9 entfernt sich von dem Anschlag 12. Gleichzeitig wird die Ausstülpung 5 der Schaltmatte 2 niedergedrückt, um wie zuvor beschriebenen den Schaltvorgang auszulösen. Lässt der Bediener nun die Taste 6 los, so schnellt diese auf Grund der von dem gummielastischen Material der Ausstülpung 5 erzeugten Kraft in die Ruheposition zurück, wobei der Teilbereich 11 des Schaftes 9 an dem durch die Schaltmatte 2 gebildeten Anschlag 12 anschlägt. Auf Grund der gummielastischen Eigenschaften der Schaltmatte 2 erfolgt dieses Anschlagen des Teilbereiches 11 an dem Anschlag 12 nahezu geräuschlos.If force is now exerted by an operator on the pressure surface 6 of the key 1, the key is moved along the walls 4 and the portion 11 of the shaft 9 moves away from the stop 12. At the same time, the protuberance 5 of the switching mat 2 is depressed, as in FIG previously described trigger the switching process. If the operator now lets go of the button 6, it will snap back into the rest position due to the force generated by the rubber-elastic material of the protuberance 5, whereby the portion 11 of the shaft 9 abuts against the stop 12 formed by the switching mat 2. Due to the rubber-elastic properties of the switching mat 2, this striking of the portion 11 is carried on the stop 12 almost noiseless.

Um eine definierte Ruhelage der Taste 1 zu gewährleisten liegt die Schaltmatte 2 im Bereich des Anschlages 12 mit der der Blende zugewandten Seite 13 an der Wand 4 an, die Bestandteil der Blende 3 ist.In order to ensure a defined rest position of the button 1, the switching mat 2 is in the region of the stop 12 with the side facing the panel 13 on the wall 4, which is part of the panel 3.

Die Wand 4 der Blende 2 weist weiterhin nicht dargestellte Fixierstifte auf, die in ebenfalls nicht dargestellte, an die Abmessungen der Fixierstifte angepasste Fixieröffnungen der Schaltmatte 2 hineinragen und somit die Schaltmatte gegenüber der Blende und der Taste fixieren.The wall 4 of the diaphragm 2 also has fixing pins, not shown, in the likewise not shown, adapted to the dimensions of the fixing pins fixing holes of Protect switching mat 2 and thus fix the keypad against the panel and the button.

Der Aufbau der Drucktaste 1 ist aus Figur 2 detaillierter zu ersehen. Während in Zusammenhang mit Figur 1 aus Gründen der einfacheren Erläuterung des erfindungsgemäßen Konzepts nur von einem Schaft 9 die Rede war, weist die Drucktaste 1 einen ersten Schaft 9a und einen zweiten Schaft 9b auf, die jeweils Teilbereiche 11a, 11b aufweisen, die rastnasenartig ausgebildet sind. Der erste Schaft 9a und der zweite Schaft 9b ragen in der in Figur 1 dargestellten Weise durch eine Öffnung der Schaltmatte 2 hindurch, wobei die Teilbereiche 11a, 11b jeweils an einem Anschlag 12 der Schaltmatte anliegen. Grundsätzlich ist jedoch ein einziger Schaft 9 ausreichend.The structure of the pushbutton 1 is off FIG. 2 to see in more detail. While related to FIG. 1 For reasons of simplifying the explanation of the inventive concept, only one shaft 9 was mentioned, the pushbutton 1 has a first shaft 9a and a second shaft 9b, each having partial regions 11a, 11b, which are designed like latching noses. The first shaft 9a and the second shaft 9b project in the in FIG. 1 illustrated manner through an opening of the switching mat 2 through, wherein the portions 11a, 11b respectively abut against a stop 12 of the switching mat. In principle, however, a single shaft 9 is sufficient.

Die Fläche 14 der Taste 1 wirkt auf die Schaltmatte 2 zur Erzeugung des Schaltvorganges ein.The surface 14 of the key 1 acts on the switching mat 2 for generating the switching operation.

Die Erfindung wurde anhand eines Ausführungsbeispiels mit einer Ausnehmung in der Schaltmatte beschrieben, durch die der Schaft der Taste hindurchragt. In einer Abwandlung kann der Schaft jedoch auch den Rand der Schaltmatte umgreifen, wobei beispielsweise die in Figur 2 gezeigten rastnasenartigen Teilbereiche 11a, 11b nach innen gerichtet sind und somit eine zwischen dem ersten und dem zweiten Schaft 9a, 9b angeordnete Schaltmatte umgreifen.The invention has been described with reference to an embodiment with a recess in the switching mat through which the shaft of the button protrudes. In a modification of the shank, however, can also surround the edge of the switching mat, for example, the in FIG. 2 shown latching nose-like portions 11a, 11b are directed inwards and thus engage around a between the first and the second shaft 9a, 9b arranged switching mat.

Claims (5)

  1. Operating device with at least one push button (1) arranged and guided in an orifice (3), and with a switching mat (2), wherein, in an actuating position, the push button (1) acts on the side (13) of the switching mat (2) facing the orifice (3) in order to close electric contacts of a printed circuit board and, in a rest position, bears against a stop (12), characterized in that the stop (12) against which the push button (1) bears in the rest position is formed by a side (10) of the switching mat (2) that faces away from the orifice (3), and the push button (1) has at least one shank (9) embracing the switching mat (2), wherein a subregion (11) of the shank (9) that reaches behind the switching mat (2) bears against the stop (12) in the rest position.
  2. Operating device according to Claim 1, characterized in that the switching mat (2) bears in the region of the stop (12) against the orifice (3).
  3. Operating device according to either of the preceding claims, characterized in that the switching mat (2) has a recess (8) through which the shank (9) projects.
  4. Operating device according to one of the preceding claims, characterized in that the switching mat (2) has fixing openings into which fixing pins project.
  5. Operating device according to one of the preceding claims, characterized by the use as a motor vehicle component.
EP20060111973 2005-04-18 2006-03-30 Operating device with switching mat Active EP1715497B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200510017852 DE102005017852B3 (en) 2005-04-18 2005-04-18 Operating device for use as motor vehicle component, has press button lying against stopper in resting position, where stopper is formed by side of switch mat made from rubber elastic material

Publications (3)

Publication Number Publication Date
EP1715497A2 EP1715497A2 (en) 2006-10-25
EP1715497A3 EP1715497A3 (en) 2007-11-14
EP1715497B1 true EP1715497B1 (en) 2014-01-01

Family

ID=36616762

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Application Number Title Priority Date Filing Date
EP20060111973 Active EP1715497B1 (en) 2005-04-18 2006-03-30 Operating device with switching mat

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EP (1) EP1715497B1 (en)
DE (1) DE102005017852B3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4179951A1 (en) * 2021-11-10 2023-05-17 Ambu A/S A switch button for an endoscope

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3928741A (en) * 1974-09-16 1975-12-23 Texas Instruments Inc Momentary contact single pole switch
US4181826A (en) * 1978-04-06 1980-01-01 Motorola, Inc. Dome switch actuating apparatus
US4334134A (en) * 1980-11-13 1982-06-08 Gte Automatic Electric Labs Inc. Identification cap actuator assembly
DE3114563C2 (en) * 1981-04-10 1986-10-30 Leopold Kostal GmbH & Co KG, 5880 Lüdenscheid Push button switch
GB2255234B (en) 1991-03-27 1995-09-27 Hitachi Telecomm Tech Panel unit of dealing board
DE19628991C1 (en) * 1996-07-18 1997-07-17 Kostal Leopold Gmbh & Co Kg Electric pushbutton switch for motor vehicle
DE19726486B4 (en) * 1997-06-21 2007-05-16 Siemens Ag switching element

Also Published As

Publication number Publication date
EP1715497A3 (en) 2007-11-14
DE102005017852B3 (en) 2006-10-12
EP1715497A2 (en) 2006-10-25

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