DE3335582A1 - Keypad for telephone sets - Google Patents

Keypad for telephone sets

Info

Publication number
DE3335582A1
DE3335582A1 DE19833335582 DE3335582A DE3335582A1 DE 3335582 A1 DE3335582 A1 DE 3335582A1 DE 19833335582 DE19833335582 DE 19833335582 DE 3335582 A DE3335582 A DE 3335582A DE 3335582 A1 DE3335582 A1 DE 3335582A1
Authority
DE
Germany
Prior art keywords
rubber mat
keypad
key
elevations
keyboard
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.)
Granted
Application number
DE19833335582
Other languages
German (de)
Other versions
DE3335582C2 (en
Inventor
Erwin 8000 München Awakowicz
Peter 8121 Fischen Kleine
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 DE19833335582 priority Critical patent/DE3335582A1/en
Publication of DE3335582A1 publication Critical patent/DE3335582A1/en
Application granted granted Critical
Publication of DE3335582C2 publication Critical patent/DE3335582C2/de
Granted legal-status Critical Current

Links

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
    • H01H2229/00—Manufacturing
    • H01H2229/064—Eliminating tolerances

Landscapes

  • Push-Button Switches (AREA)

Abstract

Keypad for telephone sets having a multiplicity of key bodies (2) which can be fitted in a housing (1) and act on key-drop bellows (5) of a rubber mat (6). The purpose of the present invention is to use simple means to compensate for tolerance variations which can occur in the production of the individual parts of the keypad. This is achieved by wart-shaped elevations (13) being provided on the face of the rubber mat (6) directed away from the key bodies (2). <IMAGE>

Description

Tastatur für FernsprechqeräteKeypad for telephones

Die vorliegende Erfindung beinhaltet eine Tastatur für Fernsprechgeräte mit einer Vielzahl von in einem Gehäuse einsetzbaren Tastenkörpern, die auf Hubbälge einer Gummimatte einwirken.The present invention includes a keypad for telephone sets with a large number of key bodies which can be inserted in a housing and which are mounted on lifting bellows act on a rubber mat.

Eine derartige Tastatur ist beispielsweise durch das DE-GM 81 05 649 bekannt. Hierbei wird die Rückstellung der Tastenkörper durch die Hubbälge einer Gummimatte bewirkt. Die Hubbälge sind in ihrem Inneren mit jeweils einem Kontaktpimpel versehen, so daß bei niedergedrücktem Tastenkörper auf einer Leiterplatte vorgesehene Kontaktstellen überbrückt werden.Such a keyboard is, for example, from DE-GM 81 05 649 known. Here, the resetting of the key body by the lifting bellows is a Rubber mat causes. The inside of the lifting bellows each have a contact pimple provided, so that provided when the key body is depressed on a circuit board Contact points are bridged.

Bei derartigen Tastaturen können sich addierende Toleranzen, die bei der Herstellung der einzelnen Teile der Tastatur auftreten können, zu Maßschwankungen beim Zusammenbau der Tastatur führen, so daßdie Tastenkörper in unerwünschter Weise lose im Gehäuse angeordnet sind.In such keyboards, additive tolerances that at The manufacture of the individual parts of the keyboard can lead to dimensional fluctuations when assembling the keyboard, so that the key body in an undesirable manner are loosely arranged in the housing.

Aufgabe der Erfindung ist es daher, diese Toleranzen mit einfachen Mitteln auszugleichen.The object of the invention is therefore to these tolerances with simple Balance funds.

Die Aufgabe wird dadurch gelöst, daß auf der den Tastenkörpern abgewandten Seite der Gummimatte warzenförmige Erhebungen vorgesehen sind.The object is achieved in that on the remote from the key bodies Side of the rubber mat wart-shaped elevations are provided.

Derartige warzenförmige Erhebungen lassen sich jeweils zwischen einander benachbarten Hubbälgen sowie im Randbereich und im Bereich von Führungs- und Befestigungsdurch- brüchen der Gummimatte vorgesehen, so daß eine flächige Auflage der Gummimatte erreicht wird.Such wart-shaped elevations can be placed between each other adjacent lifting bellows as well as in the edge area and in the area of guide and fastening breaks the rubber mat is provided so that a flat support of the rubber mat is achieved will.

Die Erfindung soll im folgenden anhand eines Ausführungsbeispiels näher erläutert werden.The invention is intended in the following on the basis of an exemplary embodiment are explained in more detail.

In der Abbildung ist in geschnittener perspektivischer Ansicht ein Teil der erfindungsgemäß gestalteten Tastatur dargestellt.The figure shows a sectioned perspective view Shown part of the keyboard designed according to the invention.

Der in einem Gehäuse 1 eines Fernsprechgerätes angeordnete Tastenkörper 2 liegt mit der Schulter 3 an entsprechenden Ausnehmungen 4 der Tastatur an. Der Tastenkörper 2 betätigt durch Druck in Pfeilrichtung A den Hubbalg 5 einer Gummimatte 6. Der Hubbalg 5 ist mit einem Kontaktpimpel 7 versehen, der in gedrücktem Zustand des Tastenkörpers 2 auf Kontaktstellen 8 einer Leiterplatte 9 einwirkt. Diese Kontaktstellen können z.B. als mäanderförmig gestaltete Leiterbahnen ausgebildet sein.The key body arranged in a housing 1 of a telephone device 2 rests with the shoulder 3 on corresponding recesses 4 of the keyboard. Of the Key body 2 actuates the lifting bellows 5 of a rubber mat by pressing in the direction of arrow A. 6. The lifting bellows 5 is provided with a contact pimple 7, which in the pressed state of the key body 2 acts on contact points 8 of a circuit board 9. These contact points can e.g. be designed as meandering conductor tracks.

Beim Zusammenbau der Tastatur können sich addierende Toleranzen bei der Herstellung der einzelnen Teile zu Maßschwankungen zwischen den Ebenen 10 und 11 führen, die durch die Gummimatte 6 nicht mehr ausgeglichen werden können. Der Tastenkörper würde somit mit seiner Schulter 3 mit Spiel zur Fläche 12 liegen. Diese Toleranzschwankungen werden durch warzenförmigen Erhebungen 13 ausgeglichen. Die warzenförmigen Erhebungen sind an der'dem Tastenkörper 2 abgewandten Seite der Gummimatte angeordnet und sind jeweils zwischen einander benachbarten Hubbälgen sowie im Randbereich und im Bereich von Führungs-und Befestigungsdurchbrüchen der Gummimatte vorgesehen.When assembling the keyboard, tolerances can add up the manufacture of the individual parts to dimensional fluctuations between levels 10 and 11 lead, which can no longer be compensated for by the rubber mat 6. Of the The key body would thus lie with its shoulder 3 with play on the surface 12. These Tolerance fluctuations are compensated for by wart-shaped elevations 13. the There are wart-shaped elevations on the side of the rubber mat facing away from the key body 2 arranged and are each between adjacent lifting bellows and in the edge area and provided in the area of guide and fastening openings in the rubber mat.

4 Patentansprüche 1 Figur - Leerseite -4 claims 1 figure - blank page -

Claims (4)

Patentansprüche Tastatur für Fernsprechgeräte mit einer Vielzahl von in einem Gehäuse einsetzbaren Tastenkörpern, die auf Hubbälge einer Gummimatte einwirken, d a d u r c h g e -k e n n z e i c h n e t , daß auf der den Tastenkörpern (2) abgewandten Seite der Gummimatte (6) warzenförmige Erhebungen (13) vorgesehen sind.Keyboard for telephone devices with a variety of Key bodies that can be inserted in a housing and act on the lifting bellows of a rubber mat, d a d u r c h g e -k e n n n z e i c h n e t that on the remote from the key bodies (2) Side of the rubber mat (6) wart-shaped elevations (13) are provided. 2. Tastatur nach Anspruch 1, d a d u r c h g e k e n n -z e i c h n e t , daß die Erhebungen (13) jeweils zwischen benachbarten Hubbälgen (5) angeordnet sind.2. Keyboard according to claim 1, d a d u r c h g e k e n n -z e i c h n e t that the elevations (13) are each arranged between adjacent Hubbälgen (5) are. 3. Tastatur nach Anspruch 1, d a d u r c h g e k e n n -z e i c h n e t , daß die Erhebungen (13) im Randbereich der Gummimatte (6) angeordnet sind.3. Keyboard according to claim 1, d a d u r c h g e k e n n -z e i c h n e t that the elevations (13) are arranged in the edge region of the rubber mat (6). 4. Tastatur nach Anspruch 1, d a d u r c h g e k e n n -z e i c h n e t , daß die Erhebungen (13) im Bereich von Führungs- und Befestigungsdurchbrüchen in der Gummimatte (6) vorgesehen sind.4. Keyboard according to claim 1, d a d u r c h g e k e n n -z e i c h n e t that the elevations (13) in the area of guide and fastening openings are provided in the rubber mat (6).
DE19833335582 1983-09-30 1983-09-30 Keypad for telephone sets Granted DE3335582A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19833335582 DE3335582A1 (en) 1983-09-30 1983-09-30 Keypad for telephone sets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19833335582 DE3335582A1 (en) 1983-09-30 1983-09-30 Keypad for telephone sets

Publications (2)

Publication Number Publication Date
DE3335582A1 true DE3335582A1 (en) 1985-04-18
DE3335582C2 DE3335582C2 (en) 1992-10-29

Family

ID=6210616

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19833335582 Granted DE3335582A1 (en) 1983-09-30 1983-09-30 Keypad for telephone sets

Country Status (1)

Country Link
DE (1) DE3335582A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0614204A2 (en) * 1993-03-02 1994-09-07 Marquardt GmbH Switch dome for push-button switch
DE10140337B4 (en) * 2001-08-16 2005-02-24 Siemens Ag Electronic terminal

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4117292A (en) * 1977-06-10 1978-09-26 Telaris Telecommunications, Inc. Dual spring actuator for keyboard switch assembly
DE8105649U1 (en) * 1981-02-27 1981-08-13 Siemens AG, 1000 Berlin und 8000 München Keypad for telephones

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4117292A (en) * 1977-06-10 1978-09-26 Telaris Telecommunications, Inc. Dual spring actuator for keyboard switch assembly
DE8105649U1 (en) * 1981-02-27 1981-08-13 Siemens AG, 1000 Berlin und 8000 München Keypad for telephones

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0614204A2 (en) * 1993-03-02 1994-09-07 Marquardt GmbH Switch dome for push-button switch
EP0614204A3 (en) * 1993-03-02 1994-12-14 Marquardt Gmbh Switch dome for push-button switch.
DE10140337B4 (en) * 2001-08-16 2005-02-24 Siemens Ag Electronic terminal

Also Published As

Publication number Publication date
DE3335582C2 (en) 1992-10-29

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee