GB9320457D0 - Mechanical key switch for membrane keyboards - Google Patents

Mechanical key switch for membrane keyboards

Info

Publication number
GB9320457D0
GB9320457D0 GB939320457A GB9320457A GB9320457D0 GB 9320457 D0 GB9320457 D0 GB 9320457D0 GB 939320457 A GB939320457 A GB 939320457A GB 9320457 A GB9320457 A GB 9320457A GB 9320457 D0 GB9320457 D0 GB 9320457D0
Authority
GB
United Kingdom
Prior art keywords
key switch
mechanical key
membrane keyboards
keyboards
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.)
Withdrawn
Application number
GB939320457A
Other versions
GB2282703A (en
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.)
CHEN DAW S
Original Assignee
CHEN DAW S
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 CHEN DAW S filed Critical CHEN DAW S
Priority to GB9320457A priority Critical patent/GB2282703A/en
Publication of GB9320457D0 publication Critical patent/GB9320457D0/en
Publication of GB2282703A publication Critical patent/GB2282703A/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Withdrawn legal-status Critical Current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
    • H01H13/02—Details
    • H01H13/26—Snap-action arrangements depending upon deformation of elastic members
    • H01H13/28—Snap-action arrangements depending upon deformation of elastic members using compression or extension of coil springs
    • 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
    • H01H2215/00—Tactile feedback
    • H01H2215/03—Sound
GB9320457A 1993-10-05 1993-10-05 Mechanical key switch Withdrawn GB2282703A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9320457A GB2282703A (en) 1993-10-05 1993-10-05 Mechanical key switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9320457A GB2282703A (en) 1993-10-05 1993-10-05 Mechanical key switch

Publications (2)

Publication Number Publication Date
GB9320457D0 true GB9320457D0 (en) 1993-11-24
GB2282703A GB2282703A (en) 1995-04-12

Family

ID=10742991

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9320457A Withdrawn GB2282703A (en) 1993-10-05 1993-10-05 Mechanical key switch

Country Status (1)

Country Link
GB (1) GB2282703A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106653444B (en) * 2016-09-27 2019-09-03 东莞市美光达光学科技有限公司 A kind of generation of keyboard input switch clickly sound structure
CN208460628U (en) * 2017-09-05 2019-02-01 惠州市正牌科电有限公司 It can be used for the long overtravel and the adjustable compound mechanical switch of overtravel of membrane keyboard

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4118611A (en) * 1977-08-30 1978-10-03 International Business Machines Corporation Buckling spring torsional snap actuator
JPS6025782Y2 (en) * 1978-05-25 1985-08-02 アルプス電気株式会社 push button switch
US4528431A (en) * 1983-10-03 1985-07-09 International Business Machines Corporation Rocking switch actuator for a low force membrane contact switch
US4859820A (en) * 1988-03-31 1989-08-22 American Telephone And Telegraph Company Quiet key switch
JPH0624106Y2 (en) * 1988-07-11 1994-06-22 アルプス電気株式会社 Push button switch
JPH0280929U (en) * 1988-12-12 1990-06-21

Also Published As

Publication number Publication date
GB2282703A (en) 1995-04-12

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)