EP0671752A3 - Tastatur - Google Patents

Tastatur Download PDF

Info

Publication number
EP0671752A3
EP0671752A3 EP95101840A EP95101840A EP0671752A3 EP 0671752 A3 EP0671752 A3 EP 0671752A3 EP 95101840 A EP95101840 A EP 95101840A EP 95101840 A EP95101840 A EP 95101840A EP 0671752 A3 EP0671752 A3 EP 0671752A3
Authority
EP
European Patent Office
Prior art keywords
switching
switching film
base plate
metal plate
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
EP95101840A
Other languages
English (en)
French (fr)
Other versions
EP0671752A2 (de
EP0671752B1 (de
Inventor
Jörg DITTRICH
Günther Greiner
Karl-Heinz Müller
Klaus Schuster
Günter MURMANN
Kurt Michel
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.)
ZF Electronics GmbH
Original Assignee
Cherry Mikroschalter GmbH
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
Priority claimed from DE19944408331 external-priority patent/DE4408331A1/de
Priority claimed from DE19944442073 external-priority patent/DE4442073C2/de
Application filed by Cherry Mikroschalter GmbH filed Critical Cherry Mikroschalter GmbH
Publication of EP0671752A2 publication Critical patent/EP0671752A2/de
Publication of EP0671752A3 publication Critical patent/EP0671752A3/de
Application granted granted Critical
Publication of EP0671752B1 publication Critical patent/EP0671752B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01H2217/00—Facilitation of operation; Human engineering
    • H01H2217/028—Facilitation of operation; Human engineering on planes with different or alterable inclination, e.g. convex plane
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2223/00—Casings
    • H01H2223/008—Casings metallic

Landscapes

  • Push-Button Switches (AREA)
  • Input From Keyboards Or The Like (AREA)

Abstract

Die Erfindung betrifft eine Tastatur (1) mit verformungsfähiger Schaltmatte (7) und mehrlagigem Schaltfolienset (3), bei welcher zwischen Bodenplatte (4) und der untersten der Folien (3c) im Schaltfolienset (3) eine Metallplatte (2) formschlüssig in eine Aussparung im Bodenplatte (4) eingelegt ist, um das Gewicht und die Biege- bzw. Verwindungssteifigkeit zu erhöhen. Durch Durchbrüche in diesem mehrlagigen Schaltfolienset (3), durch welche je ein in der Schaltmatte (7) einstückig integriertes Pufferelement (12) hindurchgreift und auf der Oberseite der Metallplatte (2) bzw. der untersten Schaltfolie (3c) zum Liegen kommt sowie durch an der Innenseite des Gehäuseoberteils angebrachte Rippen (10), die an der Oberseite der Pufferelemente (12) aufliegen, wird das Schaltfolienset (3) im wesentlichen schwimmend gelagert. In einer weiteren Ausführungsform ist die unterste Schaltfolie (3c) mit der Metallplatte (2) elektrisch verbunden, wodurch es zu einer Erhöhung der elektromagnetischen Abschirmung kommt. Zur weiteren Versteifung der Tastatur sind mit der Bodenplatte (4) integrierte Verstärkungsstege an Außenseite angebracht, in welchen Gehäusefüße (14) schwenkbar gelagert sind.
Figure 00000001
EP95101840A 1994-03-11 1995-02-10 Tastatur Expired - Lifetime EP0671752B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE4408331 1994-03-11
DE19944408331 DE4408331A1 (de) 1994-03-11 1994-03-11 Tastatur mit schwenkbaren Gehäusefüßen
DE4442073 1994-11-25
DE19944442073 DE4442073C2 (de) 1994-11-25 1994-11-25 Tastatur mit Metallplatte

Publications (3)

Publication Number Publication Date
EP0671752A2 EP0671752A2 (de) 1995-09-13
EP0671752A3 true EP0671752A3 (de) 1998-03-11
EP0671752B1 EP0671752B1 (de) 2002-06-05

Family

ID=25934631

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95101840A Expired - Lifetime EP0671752B1 (de) 1994-03-11 1995-02-10 Tastatur

Country Status (4)

Country Link
US (1) US5574446A (de)
EP (1) EP0671752B1 (de)
DE (1) DE59510220D1 (de)
TW (1) TW305970B (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1051634C (zh) * 1994-12-28 2000-04-19 和泉电气株式会社 薄型开关装置及带开关的显示装置
US6031524A (en) * 1995-06-07 2000-02-29 Intermec Ip Corp. Hand-held portable data terminal having removably interchangeable, washable, user-replaceable components with liquid-impervious seal
US6492978B1 (en) * 1998-05-29 2002-12-10 Ncr Corporation Keyscreen
US5980135A (en) * 1998-09-22 1999-11-09 Acer Peripherals, Inc. Keyboard with an optional metal support for strengthening its structure
US6657146B1 (en) 2000-03-28 2003-12-02 Thomson Licensing, S.A. Button ball and alignment rib
JP4296296B2 (ja) * 2001-04-01 2009-07-15 インテグリス・インコーポレーテッド 薄型ウエハー挿入体
JP4119707B2 (ja) * 2002-08-02 2008-07-16 ポリマテック株式会社 キーパッド、樹脂キートップ用射出成形金型、および樹脂キートップの製造方法
US7629547B2 (en) * 2006-04-24 2009-12-08 Nokia Corporation Illuminating of an electrical device
CN101751128B (zh) * 2008-11-28 2011-10-26 华硕电脑股份有限公司 防止误动作的键盘模块
US7903398B2 (en) * 2009-05-11 2011-03-08 Dell Products L.P. Information handling system keyboard
JP4924738B2 (ja) * 2010-04-12 2012-04-25 カシオ計算機株式会社 キー装置、及び電子機器
TWI421892B (zh) * 2010-04-16 2014-01-01 Jensin Internat Technology Corp A keyboard with an illuminated light source
CN102592869A (zh) * 2012-01-17 2012-07-18 广东步步高电子工业有限公司 一种电子设备的按键装置及电子设备

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4814747A (en) * 1987-05-29 1989-03-21 Wathor J D Keyboard storage for a terminal
GB2250380A (en) * 1990-11-27 1992-06-03 Ist Lab Ltd Switch apparatus

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4029916A (en) * 1975-04-18 1977-06-14 Northern Electric Company Limited Multi-contact push-button switch and plural embodiment for keyboard switch assembly
US4354068A (en) * 1980-02-04 1982-10-12 Texas Instruments Incorporated Long travel elastomer keyboard
IT1144971B (it) * 1981-10-21 1986-10-29 Olivetti & Co Spa Tastiera a contatti
US4560844A (en) * 1983-07-11 1985-12-24 Brother Kogyo Kabushiki Kaisha Key-holding structure of a keyboard with curved operating surface of keys
US4592528A (en) * 1984-05-22 1986-06-03 Northern Telecom Limited Leg assembly for a keyboard or the like
IT1187888B (it) * 1986-01-31 1987-12-23 Olivetti & Co Spa Dispositivo per regolare l inclinazione di una tastiera
US4856748A (en) * 1987-08-24 1989-08-15 Northern Telecom Limited Leg assembly for a keyboard or the like
JP2557557Y2 (ja) * 1991-02-12 1997-12-10 ミネベア株式会社 キースイッチ
US5278557A (en) * 1991-02-19 1994-01-11 Key Tronic Corporation Cursor movement control key and electronic computer keyboard for computers having a video display
JPH05119885A (ja) * 1991-10-11 1993-05-18 Internatl Business Mach Corp <Ibm> コンピユータ、キーボード装置、及び、キーボード傾斜装置
US5438177A (en) * 1992-05-06 1995-08-01 Key Tronic Corporation Two-layer membrane switch

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4814747A (en) * 1987-05-29 1989-03-21 Wathor J D Keyboard storage for a terminal
GB2250380A (en) * 1990-11-27 1992-06-03 Ist Lab Ltd Switch apparatus

Also Published As

Publication number Publication date
EP0671752A2 (de) 1995-09-13
DE59510220D1 (de) 2002-07-11
US5574446A (en) 1996-11-12
TW305970B (de) 1997-05-21
EP0671752B1 (de) 2002-06-05

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