EP0727796A3 - Layered keyboard - Google Patents

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Publication number
EP0727796A3
EP0727796A3 EP95119275A EP95119275A EP0727796A3 EP 0727796 A3 EP0727796 A3 EP 0727796A3 EP 95119275 A EP95119275 A EP 95119275A EP 95119275 A EP95119275 A EP 95119275A EP 0727796 A3 EP0727796 A3 EP 0727796A3
Authority
EP
European Patent Office
Prior art keywords
keyboard
support
cover plate
contact elements
layered
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP95119275A
Other languages
German (de)
French (fr)
Other versions
EP0727796A2 (en
Inventor
Manfred Dipl.-Ing. Raasch (Fh)
Armin Dipl.-Phys. Sauter
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.)
Rafi GmbH and Co KG
Rafi GmbH and Co Elektrotechnische Spezialfabrik
Original Assignee
Rafi GmbH and Co KG
Rafi GmbH and Co Elektrotechnische Spezialfabrik
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 Rafi GmbH and Co KG, Rafi GmbH and Co Elektrotechnische Spezialfabrik filed Critical Rafi GmbH and Co KG
Publication of EP0727796A2 publication Critical patent/EP0727796A2/en
Publication of EP0727796A3 publication Critical patent/EP0727796A3/en
Withdrawn legal-status Critical Current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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2205/00—Movable contacts
    • H01H2205/002—Movable contacts fixed to operating part
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2209/00—Layers
    • H01H2209/068—Properties of the membrane
    • H01H2209/07—Properties of the membrane metallic
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2229/00—Manufacturing
    • H01H2229/002—Screen printing

Landscapes

  • Push-Button Switches (AREA)

Abstract

Membrantastatur (1) mit einem Träger (11) und einer über Distanzhalter (13) oberhalb des Trägers (11) angeordnete Abdeckplatte (12), die mindestens einen Membranschaltraum (14) einschließen, in dem miteinander Kontaktelemente (21, 22, 23) angeordnet sind. Die Kontaktelemente (21, 22, 23) sind einerseits unmittelbar an dem Träger (11) und andererseits unmittelbar an der Abdeckplatte (12) angebracht.

Figure 00000001
Membrane keyboard (1) with a support (11) and a cover plate (12) arranged above the support (11) via spacers (13) and including at least one membrane switching space (14) in which contact elements (21, 22, 23) are arranged are. The contact elements (21, 22, 23) are attached on the one hand directly to the carrier (11) and on the other hand directly on the cover plate (12).
Figure 00000001
EP95119275A 1995-02-16 1995-12-07 Layered keyboard Withdrawn EP0727796A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19505128 1995-02-16
DE1995105128 DE19505128A1 (en) 1995-02-16 1995-02-16 Membrane keyboard

Publications (2)

Publication Number Publication Date
EP0727796A2 EP0727796A2 (en) 1996-08-21
EP0727796A3 true EP0727796A3 (en) 1998-03-11

Family

ID=7754073

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95119275A Withdrawn EP0727796A3 (en) 1995-02-16 1995-12-07 Layered keyboard

Country Status (2)

Country Link
EP (1) EP0727796A3 (en)
DE (1) DE19505128A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005002149A1 (en) * 2005-01-17 2006-07-20 Printed Systems Gmbh Keyboard and method of making a keyboard
CN103077842A (en) * 2012-12-28 2013-05-01 苏州达方电子有限公司 Light guide plate structure, luminous keyboard and production method of light guide plate structure

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4249054A (en) * 1978-02-28 1981-02-03 Sharp Kabushiki Kaisha Metallic housing for an electronic apparatus with a flat keyboard
DE3413408A1 (en) * 1984-04-10 1985-10-17 Wilde Membran Impuls Technik GmbH, 5828 Ennepetal Flat keyboard
US4620075A (en) * 1983-06-10 1986-10-28 Price Pfister, Inc. Unitized control panel

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4249054A (en) * 1978-02-28 1981-02-03 Sharp Kabushiki Kaisha Metallic housing for an electronic apparatus with a flat keyboard
US4620075A (en) * 1983-06-10 1986-10-28 Price Pfister, Inc. Unitized control panel
DE3413408A1 (en) * 1984-04-10 1985-10-17 Wilde Membran Impuls Technik GmbH, 5828 Ennepetal Flat keyboard

Also Published As

Publication number Publication date
DE19505128A1 (en) 1996-08-22
EP0727796A2 (en) 1996-08-21

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