DE3877941T2 - Membrantastatur. - Google Patents

Membrantastatur.

Info

Publication number
DE3877941T2
DE3877941T2 DE8888301252T DE3877941T DE3877941T2 DE 3877941 T2 DE3877941 T2 DE 3877941T2 DE 8888301252 T DE8888301252 T DE 8888301252T DE 3877941 T DE3877941 T DE 3877941T DE 3877941 T2 DE3877941 T2 DE 3877941T2
Authority
DE
Germany
Prior art keywords
membrane keyboard
keyboard
membrane
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 - Fee Related
Application number
DE8888301252T
Other languages
English (en)
Other versions
DE3877941D1 (de
Inventor
John Mcallister
Ian Alexander Lawson
Brian Joseph Keenan
Richard Allan Eardley
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.)
Lexmark International Inc
Original Assignee
Lexmark International Inc
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 Lexmark International Inc filed Critical Lexmark International Inc
Publication of DE3877941D1 publication Critical patent/DE3877941D1/de
Application granted granted Critical
Publication of DE3877941T2 publication Critical patent/DE3877941T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H01H13/78—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 characterised by the contacts or the contact sites
    • H01H13/80—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 characterised by the contacts or the contact sites characterised by the manner of cooperation of the contacts, e.g. with both contacts movable or with bounceless contacts
    • 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
    • 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
    • H01H13/703—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 spacers between contact carrying layers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2201/00—Contacts
    • H01H2201/002—Contacts bounceless
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2211/00—Spacers
    • H01H2211/006—Individual areas
    • H01H2211/01—Ink
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/062—Damping vibrations
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2227/00—Dimensions; Characteristics
    • H01H2227/002—Layer thickness
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2229/00—Manufacturing
    • H01H2229/034—Positioning of layers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2235/00—Springs
    • H01H2235/012—Euler spring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2237/00—Mechanism between key and laykey
    • H01H2237/004—Cantilever
DE8888301252T 1988-02-16 1988-02-16 Membrantastatur. Expired - Fee Related DE3877941T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP88301252A EP0328801B1 (de) 1988-02-16 1988-02-16 Membrantastatur

Publications (2)

Publication Number Publication Date
DE3877941D1 DE3877941D1 (de) 1993-03-11
DE3877941T2 true DE3877941T2 (de) 1993-07-01

Family

ID=8199957

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8888301252T Expired - Fee Related DE3877941T2 (de) 1988-02-16 1988-02-16 Membrantastatur.

Country Status (4)

Country Link
US (1) US4920237A (de)
EP (1) EP0328801B1 (de)
JP (1) JPH01220318A (de)
DE (1) DE3877941T2 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69023174T2 (de) * 1989-07-05 1996-04-04 Acer Inc Membranschalteranordnung.
US5231386A (en) * 1990-07-24 1993-07-27 Home Row, Inc. Keyswitch-integrated pointing assembly
US5541622A (en) * 1990-07-24 1996-07-30 Incontrol Solutions, Inc. Miniature isometric joystick
US5306886A (en) * 1992-06-15 1994-04-26 Smk Co., Ltd. Keyboard switch
FR2697935B1 (fr) * 1992-11-12 1995-01-13 Sextant Avionique Terminal de communication compact et ergonomique muni de surfaces de détection de proximité.
US6056458A (en) * 1999-04-14 2000-05-02 Dexin Corporation Computer keyboard with Z-axis input means
US6781077B2 (en) 2000-12-14 2004-08-24 Think Outside, Inc. Keyswitch and actuator structure
US20190362911A1 (en) * 2018-05-25 2019-11-28 Joyson Safety Systems Acquisition Llc Force activated electrical switch

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4913368B1 (de) * 1966-09-19 1974-03-30
US3503031A (en) * 1969-02-11 1970-03-24 Control Data Corp Printed circuit keyboard
US4143179A (en) * 1974-12-16 1979-03-06 Fuji Polymer Industries, Co., Ltd. Method of manufacturing a keyboard
US3981757A (en) * 1975-04-14 1976-09-21 Globe-Union Inc. Method of fabricating keyboard apparatus
DE2902769C2 (de) * 1979-01-25 1982-12-09 Rudolf Schadow Gmbh, 1000 Berlin Drucktastenschalter
JPS6029329B2 (ja) * 1981-05-22 1985-07-10 株式会社香東工業 コンクリ−ト管の型枠分解装置
US4439647A (en) * 1982-07-14 1984-03-27 Nick Calandrello Touchpad keyboard
US4539554A (en) * 1982-10-18 1985-09-03 At&T Bell Laboratories Analog integrated circuit pressure sensor
US4605828A (en) * 1984-05-29 1986-08-12 International Business Machines Corporation Membrane keyboard switch mounting
JPS6253535U (de) * 1985-09-24 1987-04-02
US4795861A (en) * 1987-11-17 1989-01-03 W. H. Brady Co. Membrane switch element with coated spacer layer

Also Published As

Publication number Publication date
EP0328801B1 (de) 1993-01-27
DE3877941D1 (de) 1993-03-11
JPH01220318A (ja) 1989-09-04
EP0328801A1 (de) 1989-08-23
US4920237A (en) 1990-04-24

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee