EP0204223B1 - Push button module - Google Patents

Push button module Download PDF

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Publication number
EP0204223B1
EP0204223B1 EP86106976A EP86106976A EP0204223B1 EP 0204223 B1 EP0204223 B1 EP 0204223B1 EP 86106976 A EP86106976 A EP 86106976A EP 86106976 A EP86106976 A EP 86106976A EP 0204223 B1 EP0204223 B1 EP 0204223B1
Authority
EP
European Patent Office
Prior art keywords
key body
key
housing part
housing component
plastic housing
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
Application number
EP86106976A
Other languages
German (de)
French (fr)
Other versions
EP0204223A1 (en
Inventor
Ronny Vermeulen
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to AT86106976T priority Critical patent/ATE38739T1/en
Publication of EP0204223A1 publication Critical patent/EP0204223A1/en
Application granted granted Critical
Publication of EP0204223B1 publication Critical patent/EP0204223B1/en
Expired 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
    • G05G1/02—Controlling members for hand actuation by linear movement, e.g. push buttons
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2215/00—Tactile feedback
    • H01H2215/004—Collapsible dome or bubble
    • H01H2215/012—Positioning of individual dome
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2223/00—Casings
    • H01H2223/03—Separate key housing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2233/00—Key modules
    • H01H2233/03—Key modules mounted on support plate or frame
    • H01H2233/034—Snap coupling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49105—Switch making

Definitions

  • the invention relates to a key block with a bell-shaped or dome-shaped key body made of elastic material, which has an edge delimiting its open side, and with a plastic housing part which at least partially accommodates the key body and into which the key body with its closed side can be used in advance and with outward-facing approaches provided on the key body near its edge, which engage in recesses or pockets which are provided transversely to the axis of the key body in the plastic housing part.
  • Such a key block is already known from DE-GM 8 334 679.
  • the approaches which engage in recesses in the plastic housing part serve to hold the key body uncomplicatedly in the plastic housing part, so that an easy-to-use composite body consisting of the key body and the plastic housing part is formed.
  • this object is achieved by the fact that on the open side of the key body the boundary walls of the plastic housing part which detect the approaches of the key body are formed only by swivel bodies which are integrally connected to the plastic housing part via film hinges.
  • the approaches of the key body are formed by a web which surrounds the key body in the vicinity of its edge and that the plastic housing part has an inner wall adapted to this web with a contact surface which, when the key body is inserted in the plastic housing part is effective as a stop.
  • the pivoting bodies each movable in a plane parallel to the axis of the key body, have holding hooks which, in a locking position of the pivoting bodies, assume a parallel position to the contact surface of the inner wall and in this parallel position to the contact surface of the inner wall one of the Have the appropriate distance between the thickness of the key body bar.
  • the web of the key body is advantageously only gripped by the plastic housing part on opposite sides in the axial direction of the key body.
  • the function of the key body is in no way impaired by the mounting of the key body in the plastic housing part.
  • the key module has an essentially hollow cylindrical plastic housing part 1, which merges into an approximately cuboid base 2 on the side which faces a contact plate (not shown). From this side, a bell-shaped or dome-shaped key body 3 made of elastic material is inserted into the plastic housing part 1, in such a way that the axes 4 of the plastic housing part 1 and key body 3 run coaxially with one another and the open side 5 of the Key body 3 facing the contact plate, not shown.
  • retaining pins 6 protruding from the base 2 of the plastic housing part 1 in the direction of the plate penetrate holes in the plate and thereby hold the button module on the plate.
  • the key body 3 is pressed with the aid of the plastic housing part 1 with an edge 7, which surrounds the open side 5 of the key body 3, and thereby against one another
  • the outside world is closed contact space, in which there are contact surfaces on the surface of the plate, which can be connected to each other by a movable contact 8, which is fixed concentrically to the axis 4 on the ceiling 9 of the key body 3.
  • keyboards When constructing keyboards, it is desirable to be able to handle the key module consisting of key body 3 and plastic housing part 1 together as a composite body, although key body 3 and plastic housing part 1 are parts which are manufactured separately from one another.
  • FIGS. 3 to 5 how the pivoting bodies 17 are initially in a free state before the key body 3 is inserted into the plastic housing part 1, in which the holding hooks 18 hold the receiving space 21 of the plastic housing part 1 for the key body 3 release freely.
  • the key body 3 therefore falls automatically into the receiving space 21 under the influence of gravity, it only being necessary to ensure that the closed side of the key body 3 is directed downward in this case.
  • the inner wall 13 of the base 2 automatically centers the key body 3 with respect to the plastic housing part 1 and forms with its support surface 14 a holding edge which acts as a stop for the key body 3 in the direction of insertion.
  • the swivel bodies 17 are brought into the locking position.
  • the holding hooks 18 of the swivel body 17 are located on the side of the web 12 facing away from the support surface 14.
  • the key body 3 is also on the plastic in the direction facing away from the support surface 14 - Housing part 1 fixed.

Description

Die Erfindung bezieht sich auf einen Tastenbaustein, mit einem glocken- oder kuppelförmigen, aus elastischem Material bestehenden Tastenkörper, der einen seine offene Seite begrenzenden Rand aufweist, und mit einem den Tastenkörper zumindest teilweise aufnehmenden Kunststoff-Gehäuseteil, in welches der Tastenkörper mit seiner geschlossenen Seite voraus einsetzbar ist und mit am Tastenkörper in der Nähe seines Randes vorgesehenen, nach aussen gerichteten Ansätzen, die in Nischen oder Taschen eingreifen, die quer zur Achse des Tastenkörpers im Kunststoff-Gehäuseteil vorgesehen sind.The invention relates to a key block with a bell-shaped or dome-shaped key body made of elastic material, which has an edge delimiting its open side, and with a plastic housing part which at least partially accommodates the key body and into which the key body with its closed side can be used in advance and with outward-facing approaches provided on the key body near its edge, which engage in recesses or pockets which are provided transversely to the axis of the key body in the plastic housing part.

Ein solcher Tastenbaustein ist schon aus dem DE-GM 8 334 679 bekannt. Bei diesem bekannten Tastenbaustein dienen die Ansätze, die in Ausnehmungen im Kunststoff-Gehäuseteil eingreifen, dazu, den Tastenkörper unkompliziert im Kunststoff-Gehäuseteil festzuhalten, so dass ein einfach zu handhabender, aus Tastenkörper und Kunststoff-Gehäuseteil bestehender, Verbundkörper gebildet wird.Such a key block is already known from DE-GM 8 334 679. In this known key module, the approaches which engage in recesses in the plastic housing part serve to hold the key body uncomplicatedly in the plastic housing part, so that an easy-to-use composite body consisting of the key body and the plastic housing part is formed.

Bei der Massenherstellung derartiger Tastenbaustein ist das Einfügen der Ansätze des Tastenkörpers in die Ausnehmungen des Kunststoff-Gehäuseteiles bei dem bekannten Tastenbaustein nicht ganz einfach, da hierzu der aus elastischem Material bestehende glocken- oder kuppelförmige Tastenkörper elastisch deformiert werden muss.In the mass production of such a key block, the insertion of the approaches of the key body into the recesses of the plastic housing part in the known key block is not very easy, since for this purpose the bell-shaped or dome-shaped key body must be elastically deformed.

Aufgabe vorliegender Erfindung ist es daher, einen Tastenbaustein der eingangs genannten Art so auszubilden, dass der Tastenkörper ungehindert, also ohne ihn zu deformieren, in das Kunststoff-Gehäuseteil eingesetzt werden kann und der Tastenkörper nach dem Einsetzen zusammen mit dem Kunststoff-Gehäuseteil einen unkompliziert handhabbaren Verbundkörper bildet.The object of the present invention is therefore to design a key module of the type mentioned at the outset in such a way that the key body can be inserted into the plastic housing part unhindered, that is to say without deforming it, and the key body, after insertion, together with the plastic housing part, can be handled in an uncomplicated manner Composite body forms.

Erfindungsgemäss ergibt sich die Lösung dieser Aufgabe dadurch, dass auf der offenen Seite des Tastenkörpers die Ansätze des Tastenkörpers erfassende Begrenzungswände des Kunststoff-Gehäuseteiles lediglich durch Schwenkkörper gebildet sind, die über Filmscharniere einstückig mit dem Kunststoff-Gehäuseteil zusammenhängen.According to the invention, this object is achieved by the fact that on the open side of the key body the boundary walls of the plastic housing part which detect the approaches of the key body are formed only by swivel bodies which are integrally connected to the plastic housing part via film hinges.

Durch diese Ausbildung des Tastenbausteines halten nur die Schwenkkörper den Tastenkörper entgegengesetzt zur Einsetzrichtung des Tastenkörpers im Kunststoff-Gehäuseteil fest. Diese Schwenkkörper bilden im freien Zustand, also beim Einsetzen des Tastenkörpers in das Kunststoff-Gehäuseteil, kein Hindernis für den Tastenkörper, wodurch beim Einsetzen des Tastenkörpers in das Kunststoff-Gehäuseteil keine Deformation des Tastenkörpers erforderlich ist. Erst nach dem Einsetzen des Tastenkörpers in das Kunststoff-Gehäuseteil werden die Schwenkkörper in die Haltestellung bewegt und verriegeln den Tastenkörper im Kunststoff-Gehäuseteil.Due to this design of the key module, only the swivel body hold the key body in the plastic housing part opposite to the direction of insertion of the key body. In the free state, that is to say when the key body is inserted into the plastic housing part, these swivel bodies form no obstacle for the key body, as a result of which no deformation of the key body is required when the key body is inserted into the plastic housing part. Only after the key body has been inserted into the plastic housing part are the swivel bodies moved into the holding position and lock the key body in the plastic housing part.

In weiterer Ausgestaltung der Erfindung kann vorgesehen sein, dass die Ansätze des Tastenkörpers durch einen Steg gebilet sind, der den Tastenkörper in der Nähe seines Randes umgibt und dass das Kunststoff-Gehäuseteil eine diesem Steg angepasste Innenwand mit Auflagefläche aufweist, die beim Einsetzen des Tastenkörpers in das Kunststoff-Gehäuseteil als Anschlag wirksam ist.In a further embodiment of the invention, it can be provided that the approaches of the key body are formed by a web which surrounds the key body in the vicinity of its edge and that the plastic housing part has an inner wall adapted to this web with a contact surface which, when the key body is inserted in the plastic housing part is effective as a stop.

Auf diese Weise bildet die Auflagefläche einenHalterand für den Tastenkörper, wobei die Innenwand den Tastenkörper im Kunststoff-Gehäuseteil selbsttätig zentriert, so dass beim Einsetzen des Tastenkörpers in das Kunststoff-Gehäuseteil keine zusätzlichen Massnahmen erforderlich sind, um Tastenkörper und Kunststoff-Gehäuseteil aufeinander auszurichten.In this way, the support surface forms a holding edge for the key body, the inner wall automatically centering the key body in the plastic housing part, so that when the key body is inserted into the plastic housing part, no additional measures are required to align the key body and plastic housing part with one another.

Ferner kann im Rahmen der Erfindung vorgesehen sein, dass die jeweils in einer zur Achse des Tastenkörpers parallelen Ebene bewegbaren Schwenkkörper Haltehaken aufweisen, die in einer Verriegelungsposition der Schwenkkörper eine Parallelstellung zu der Auflagefläche der Innenwand einnehmen und in dieser Parallelstellung zu der Auflagefläche der Innenwand einen der Dicke des Tastenkörpersteges entsprechenden Abstand haben.Furthermore, it can be provided within the scope of the invention that the pivoting bodies, each movable in a plane parallel to the axis of the key body, have holding hooks which, in a locking position of the pivoting bodies, assume a parallel position to the contact surface of the inner wall and in this parallel position to the contact surface of the inner wall one of the Have the appropriate distance between the thickness of the key body bar.

Vorteilhaft wird dadurch der Steg des Tastenkörpers nur in Achsrichtung des Tastenkörpers an einander gegenüberliegenden Seiten vom Kunststoff-Gehäuseteil erfasst. Die Funktion des Tastenkörpers wird dadurch von der Halterung des Tastenkörpers im Kunststoff-Gehäuseteil in keiner Weise beeinträchtigt.As a result, the web of the key body is advantageously only gripped by the plastic housing part on opposite sides in the axial direction of the key body. The function of the key body is in no way impaired by the mounting of the key body in the plastic housing part.

Schliesslich kann noch vorgesehen sein, dass die Schwenkkörper widerhakenförmig hinter Kanten des Kunststoff-Gehäuseteiles einrastbare Vorsprünge haben.Finally, it can also be provided that the swivel bodies have barb-like projections which can be snapped behind edges of the plastic housing part.

Auf diese Weise werden die Schwenkkörper in ihrer Verriegelungsposition unkompliziert festgehalten.In this way, the swivel body is easily held in its locking position.

Nachfolgend wird anhand von fünf Figuren ein Ausführungsbeispiel der Erfindung noch näher erläutert.An exemplary embodiment of the invention is explained in more detail below with reference to five figures.

Dabei zeigen, mehr oder weniger stark vergrössert und teilweise nur in schematischer Darstellung,

  • Fig. 1 einen Querschnitt durch den Tastenbaustein mit aufgesetzter Tastenkappe,
  • Fig. 2 den Tastenbaustein schräg von unten gesehen und
  • Fig. 3, Fig. 4 und Fig. 5 die Funktionsweise der Schwenkkörper beim Einsetzen des Tastenkörpers in das Kunststoff-Gehäuseteil.
Show, more or less greatly enlarged and partly only in a schematic representation,
  • 1 shows a cross section through the key module with the key cap attached,
  • Fig. 2 seen the key module obliquely from below and
  • Fig. 3, Fig. 4 and Fig. 5, the operation of the swivel body when inserting the key body in the plastic housing part.

Im einzelnen ist den Figuren zu entnehmen, dass der Tastenbaustein ein im wesentlichen hohlzylindrisches Kunststoff-Gehäuseteil 1 aufweist, das auf der Seite, die einer nicht dargestellten Kontaktplatte zugewandt ist, in einen etwa quaderförmigen Sockel 2 übergeht. Von dieser Seite her ist in das Kunststoff-Gehäuseteil 1 ein aus elastischem Material bestehender, glocken- oder kuppelförmiger Tastenkörper 3 eingesetzt, und zwar so, dass die Achsen 4 von Kunststoff-Gehäuseteil 1 und Tastenkörper 3 zueinander koaxial verlaufen und die offene Seite 5 des Tastenkörpers 3 der nicht dargestellten Kontaktplatte zugewandt ist. Beim Aufsetzen des aus Tastenkörper 3 und Kunststoff-Gehäuseteil 1 bestehenden Tastenbausteines auf diese Platte dringen vom Sockel 2 des Kunststoff-Gehäuseteiles 1 in Richtung zur Platte abstehende Haltezapfen 6 in Bohrungen der Platte ein und halten dadurch den Tastenbaustein an der Platte fest. Dabei wird der Tastenkörper 3 mit Hilfe des Kunststoff-Gehäuseteiles 1 mit einem Rand 7, der die offene Seite 5 des Tastenkörpers 3 umgibt, gegen die Platte gedrückt und dadurch ein gegenüber der Aussenwelt abgeschlossener Kontaktraum gebildet, in welchem sich an der Oberfläche der Platte Kontaktflächen befinden, die durch einen beweglichen Kontakt 8 miteinander verbunden werden können, der konzentrisch zur Achse 4 an der Decke 9 des Tastenkörpers 3 befestigt ist. Durch Betätigung eines vom Kunststoff-Gehäuseteil 1 geführten und gehaltenen Tastenknopfes 11 kann der Tastenkörper 3 zum Einbrechen gebracht werden, wodurch sich der bewegliche Kontakt 8 gegen die Oberfläche der nicht dargestellten Platte legt. Wird der Tastenknopf 11 freigegeben, so nimmt der Tastenkörper 3 selbsttätig wieder seine ursprüngliche Form an und stellt dabei auch den Tastenknopf 11 wieder zurück.In detail, it can be seen from the figures that the key module has an essentially hollow cylindrical plastic housing part 1, which merges into an approximately cuboid base 2 on the side which faces a contact plate (not shown). From this side, a bell-shaped or dome-shaped key body 3 made of elastic material is inserted into the plastic housing part 1, in such a way that the axes 4 of the plastic housing part 1 and key body 3 run coaxially with one another and the open side 5 of the Key body 3 facing the contact plate, not shown. When the button module consisting of button body 3 and plastic housing part 1 is placed on this plate, retaining pins 6 protruding from the base 2 of the plastic housing part 1 in the direction of the plate penetrate holes in the plate and thereby hold the button module on the plate. The key body 3 is pressed with the aid of the plastic housing part 1 with an edge 7, which surrounds the open side 5 of the key body 3, and thereby against one another The outside world is closed contact space, in which there are contact surfaces on the surface of the plate, which can be connected to each other by a movable contact 8, which is fixed concentrically to the axis 4 on the ceiling 9 of the key body 3. By actuating a key button 11 which is guided and held by the plastic housing part 1, the key body 3 can be caused to break in, as a result of which the movable contact 8 lies against the surface of the plate (not shown). If the button 11 is released, the button body 3 automatically returns to its original shape and also resets the button 11.

Bei dem Aufbau von Tastaturen ist es erwünscht, den aus Tastenkörper 3 und Kunststoff-Gehäuseteil 1 bestehenden Tastenbaustein gemeinsam als Verbundkörper handhaben zu können, obwohl Tastenkörper 3 und Kunststoff-Gehäuseteil 1 voneinander getrennt hergestellte Teile sind.When constructing keyboards, it is desirable to be able to handle the key module consisting of key body 3 and plastic housing part 1 together as a composite body, although key body 3 and plastic housing part 1 are parts which are manufactured separately from one another.

Zur sicheren Verbindung zwischen Tastenkörper 3 und Kunststoff-Gehäuseteil 1 ist der Tastenkörper 3 an seiner Aussenseite in der Nähe seines Randes 7 mit einem einstückig mit dem Tastenkörper 3 zusammenhängenden umlaufenden Steg 12 versehen, der rechtwinklig zur Achse 4 vom Tastenkörper 3 absteht. Diesem Steg 12 angepasst, weist das Kunststoff-Gehäuseteil 1 im Bereich seines Sockels 2 eine Innenwand 13 mit einer der nicht dargestellten Platte zugewandten Auflagefläche 14 auf. Ausserdem sind am Sockel 2, jeweils in der Mitte der von der Achse 4 weggerichteten Seitenwände 15 des Sockels einstückig mit dem Kunststoff-Gehäuseteil 1 über Filmscharniere 16 zusammenhängende Schwenkkörper 17 vorgesehen. Die jeweils in einer zur Achse 4 parallelen Ebene mit ihren freien Enden bewegbaren Schwenkkörper 17, bilden an ihren freien Enden Haltehaken 18, die in einer Verriegelungsstellung der Schwenkkörper 17, wie sie in Fig. 1 und Fig. 2 dargestellt ist, zu der Auflagefläche 14 der Innenwand 13 einen Abstand haben, der der Materialstärke des Steges 12 entspricht.For a secure connection between the key body 3 and the plastic housing part 1, the key body 3 is provided on its outside near its edge 7 with a circumferential web 12 which is integral with the key body 3 and projects from the key body 3 at right angles to the axis 4. Adapted to this web 12, the plastic housing part 1 has in the area of its base 2 an inner wall 13 with a bearing surface 14 facing the plate, not shown. In addition, pivot bodies 17 are provided on the base 2, in the middle of the side walls 15 of the base directed away from the axis 4, integrally with the plastic housing part 1 via film hinges 16. The free ends of the swivel bodies 17, each movable in a plane parallel to the axis 4, form retaining hooks 18 at their free ends, which, in a locked position of the swivel bodies 17, as shown in FIGS. 1 and 2, to the support surface 14 the inner wall 13 have a distance which corresponds to the material thickness of the web 12.

Wie Fig. 2 zeigt, weisen die Schwenkkörper 17 im Bereich ihrer Haltehaken 18 Vorsprünge 19 auf, die sich widerhakenförmig hinter Kanten 20 des Sockels 2 legen, die zur Achse 4 parallel verlaufen, wenn sich die Schwenkkörper 17 in der Verriegelungsstellung befinden. Aus Fig. 2 ist auch zu ersehen, dass die Haltehaken 18 auf der offenen Seite 5 des Tastenkörpers 3 die einzigen Begrenzungswände für die Stege 12 des Tastenkörpers 3 bilden, so dass also der Tastenkörper 3 auf seiner offenen Seite 5 lediglich durch die Haltehaken 18 der Schwenkkörper 17 im Kunststoff-Gehäuseteil 1 festgehalten wird.As shown in FIG. 2, the swivel bodies 17 have projections 19 in the area of their holding hooks 18, which are barbed behind edges 20 of the base 2, which run parallel to the axis 4 when the swivel bodies 17 are in the locking position. From Fig. 2 it can also be seen that the holding hooks 18 on the open side 5 of the key body 3 form the only boundary walls for the webs 12 of the key body 3, so that the key body 3 on its open side 5 only by the holding hooks 18 of the Swivel body 17 is held in the plastic housing part 1.

Aus den Figuren 3 bis 5 ist zu ersehen, wie sich die Schwenkkörper 17 vor dem Einsetzen des Tastenkörpers 3 in das Kunststoff-Gehäuseteil 1 zunächst in einem freien Zustand befinden, in der die Haltehaken 18 den Aufnahmeraum 21 des Kunststoff-Gehäuseteiles 1 für den Tastenkörper 3 ungehindert freigeben. Der Tastenkörper 3 fällt daher, unter dem Einfluss der Schwerkraft, selbsttätig in den Aufnahmeraum 21, wobei lediglich dafür gesorgt werden muss, dass die geschlossene Seite des Tastenkörpers 3 in diesem Fall nach unten gerichtet ist. Im Zusammenwirken mit dem Steg 12 zentriert dabei die Innenwand 13 des Sockels 2 den Tastenkörper 3 bezüglich des Kunststoff-Gehäuseteiles 1 selbsttätig und bildet mit ihrer Auflagefläche 14 einen Halterand, der für denTastenkörper 3 in Einsetzrichtung als Anschlag wirkt.It can be seen from FIGS. 3 to 5 how the pivoting bodies 17 are initially in a free state before the key body 3 is inserted into the plastic housing part 1, in which the holding hooks 18 hold the receiving space 21 of the plastic housing part 1 for the key body 3 release freely. The key body 3 therefore falls automatically into the receiving space 21 under the influence of gravity, it only being necessary to ensure that the closed side of the key body 3 is directed downward in this case. In cooperation with the web 12, the inner wall 13 of the base 2 automatically centers the key body 3 with respect to the plastic housing part 1 and forms with its support surface 14 a holding edge which acts as a stop for the key body 3 in the direction of insertion.

Wenn Steg 12 und Innenwand 13 mit der Auflagefläche 14 aneinander liegen, werden die Schwenkkörper 17 in die Verriegelungsstellung gebracht. In dieser (vergleiche hierzu die Figuren 1, 2 und 3) befinden sich die Haltehaken 18 der Schwenkkörper 17 auf der von der Auflagefläche 14 abgewandten Seite des Steges 12. Dadurch wird der Tastenkörper 3 auch in der von der Auflagefläche 14 abgewandten Richtung an dem Kunststoff-Gehäuseteil 1 fixiert.When the web 12 and the inner wall 13 lie against one another with the support surface 14, the swivel bodies 17 are brought into the locking position. In this (compare FIGS. 1, 2 and 3), the holding hooks 18 of the swivel body 17 are located on the side of the web 12 facing away from the support surface 14. As a result, the key body 3 is also on the plastic in the direction facing away from the support surface 14 - Housing part 1 fixed.

Claims (4)

1. A key module comprising a bell-shaped or dome-shaped key body which consists of elastic material and which has an edge which delimits its open side, and comprising a synthetic housing component which at least partially accommodates the key body and into which the key body can be inserted with its closed side leading, and comprising outwards directed projections which are arranged on the key body in the vicinity of its edge and which engage into recesses or pockets which extend transversely to the axis of the key body in the synthetic housing component, characterised in that on the open side (5) of the key body (3) delimiting walls (18) of the synthetic housing component (1) which embrace the projections (12) of the key body (3) are formed only by pivot bodies (17) which are integrally connected to the synthetic housing component (1) via film hinges (16).
2. A key module as claimed in Claim 1, characterised in that the projections of the key body (3) are formed by a rib (12) which surrounds the key body (3) in the vicinity of its edge (7), and that the synthetic housing component (1) has an inner wall (13) which is adapted to this rib (12) and which is provided with a bearing surface (14) which serves as stop means when the key body (3) is inserted into the synthetic housing component.
3. A key module as claimed in one of the Claims 1 or 2, characterised in that the pivot bodies (17), which can each be moved in a plane parallel to the axis (4) of the key body (3), are provided with holding hooks (18) which, in a locking position of the pivot bodies (17), assume a parallel position to the bearing surface (14) of the inner wall (13) and in this parallel position are spaced from the bearing surface (14) of the inner wall (13) by a distance corresponding to the thickness of the key body rib (12).
4. A key module as claimed in Claim 3, characterised in that the pivot bodies (17) are provided with projections (19) which can engage behind edges (20) of the synthetic housing component (1) in barbed fashion.
EP86106976A 1985-05-30 1986-05-22 Push button module Expired EP0204223B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86106976T ATE38739T1 (en) 1985-05-30 1986-05-22 KEYBOARD.

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE3519422 1985-05-30
DE3519422 1985-05-30
DE8515869U DE8515869U1 (en) 1985-05-30 1985-05-30

Publications (2)

Publication Number Publication Date
EP0204223A1 EP0204223A1 (en) 1986-12-10
EP0204223B1 true EP0204223B1 (en) 1988-11-17

Family

ID=25832705

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86106976A Expired EP0204223B1 (en) 1985-05-30 1986-05-22 Push button module

Country Status (4)

Country Link
US (1) US4705925A (en)
EP (1) EP0204223B1 (en)
JP (1) JPS61278918A (en)
DE (1) DE8515869U1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106224333A (en) * 2016-08-31 2016-12-14 无锡太昌精密机械有限公司 The pushing tow structure of connecting plate

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4778952A (en) * 1987-04-23 1988-10-18 Eaton Corporation Key switch assembly
EP0558239A1 (en) * 1992-02-22 1993-09-01 McKechnie UK Limited Improvements in or relating to key button switches
FR2846143B1 (en) * 2002-10-16 2005-01-07 Dav PRESSURE-TYPE PRESSURE-OPERATING ELECTRIC SWITCH AND METHOD OF MANUFACTURING THE SAME
GB2409576B (en) * 2003-12-24 2006-01-18 Dale Mcphee Purcocks Keyboards
US7973255B2 (en) * 2007-01-15 2011-07-05 Purcocks Dale Mcphee Keyboards
CN107452533B (en) * 2016-05-13 2021-02-19 西铁城电子株式会社 Switch assembly, push switch and electronic device including the same
CN116049438B (en) * 2023-01-10 2023-06-02 昆明理工大学 Knowledge graph-based group membership analysis method

Family Cites Families (9)

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Publication number Priority date Publication date Assignee Title
US3098141A (en) * 1942-12-31 1963-07-16 Wintriss George Enclosed precision switch
NL7202909A (en) * 1972-03-04 1973-09-07
JPS49111174A (en) * 1973-02-23 1974-10-23
US4418257A (en) * 1981-11-23 1983-11-29 The Keyboard Company Keyboard switch
JPS58113229U (en) * 1982-01-26 1983-08-02 アルプス電気株式会社 push button switch
DE3241159C2 (en) * 1982-11-08 1986-10-02 Fa. Georg Schlegel, 7941 Duermentingen Command button for installation in a control panel or the like
JPS59182827U (en) * 1983-05-24 1984-12-05 アルプス電気株式会社 push button switch
KR890001960Y1 (en) * 1983-05-24 1989-04-10 알프스덴기 가부시기 가이샤 Push botton switch
DE8334679U1 (en) * 1983-12-02 1984-03-01 Siemens AG, 1000 Berlin und 8000 München button

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106224333A (en) * 2016-08-31 2016-12-14 无锡太昌精密机械有限公司 The pushing tow structure of connecting plate

Also Published As

Publication number Publication date
DE8515869U1 (en) 1986-11-13
JPS61278918A (en) 1986-12-09
EP0204223A1 (en) 1986-12-10
US4705925A (en) 1987-11-10

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