GB2141874B - Keyboard with membrane switch array - Google Patents

Keyboard with membrane switch array

Info

Publication number
GB2141874B
GB2141874B GB08408181A GB8408181A GB2141874B GB 2141874 B GB2141874 B GB 2141874B GB 08408181 A GB08408181 A GB 08408181A GB 8408181 A GB8408181 A GB 8408181A GB 2141874 B GB2141874 B GB 2141874B
Authority
GB
United Kingdom
Prior art keywords
keyboard
switch array
membrane switch
membrane
array
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
Application number
GB08408181A
Other versions
GB8408181D0 (en
GB2141874A (en
Inventor
Allan Ellson
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 UK Ltd
Cherry Corp
Original Assignee
Cherry Electrical Products Ltd
Cherry Electrical Products Corp
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 GB838309015A external-priority patent/GB8309015D0/en
Application filed by Cherry Electrical Products Ltd, Cherry Electrical Products Corp filed Critical Cherry Electrical Products Ltd
Priority to GB08408181A priority Critical patent/GB2141874B/en
Publication of GB8408181D0 publication Critical patent/GB8408181D0/en
Priority to EP84305716A priority patent/EP0157035B1/en
Priority to DE8484305716T priority patent/DE3486059T2/en
Priority to AT84305716T priority patent/ATE85155T1/en
Publication of GB2141874A publication Critical patent/GB2141874A/en
Application granted granted Critical
Publication of GB2141874B publication Critical patent/GB2141874B/en
Expired 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
    • H01H2205/00—Movable contacts
    • H01H2205/032—Several contacts formed in one plate or layer
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2235/00—Springs
    • H01H2235/022—Actuating striker
    • H01H2235/024—Actuating striker formed by knee or dimple of leaf spring
GB08408181A 1983-03-31 1984-03-29 Keyboard with membrane switch array Expired GB2141874B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB08408181A GB2141874B (en) 1983-03-31 1984-03-29 Keyboard with membrane switch array
EP84305716A EP0157035B1 (en) 1984-03-29 1984-08-22 Mechanical keyboard with membrane switch array
DE8484305716T DE3486059T2 (en) 1984-03-29 1984-08-22 MECHANICAL KEYBOARD WITH FILM SWITCH PANEL.
AT84305716T ATE85155T1 (en) 1984-03-29 1984-08-22 MECHANICAL KEYBOARD WITH KEYBOARD.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB838309015A GB8309015D0 (en) 1983-03-31 1983-03-31 Mechanical keyboard with membrane switch array
GB08408181A GB2141874B (en) 1983-03-31 1984-03-29 Keyboard with membrane switch array

Publications (3)

Publication Number Publication Date
GB8408181D0 GB8408181D0 (en) 1984-05-10
GB2141874A GB2141874A (en) 1985-01-03
GB2141874B true GB2141874B (en) 1987-04-01

Family

ID=26285706

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08408181A Expired GB2141874B (en) 1983-03-31 1984-03-29 Keyboard with membrane switch array

Country Status (1)

Country Link
GB (1) GB2141874B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS625437U (en) * 1985-06-24 1987-01-13
DE3530050A1 (en) * 1985-08-22 1987-02-26 Cherry Mikroschalter Gmbh KEY MODULE FOR FILM KEYBOARDS
US4775574A (en) * 1986-04-14 1988-10-04 Shin Etsu Polymer Co., Ltd. Covering member of keyboard and a base plate therefor
US5422447A (en) * 1992-09-01 1995-06-06 Key Tronic Corporation Keyboard with full-travel, self-leveling keyswitches and return mechanism keyswitch

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4467150A (en) * 1982-02-24 1984-08-21 Digital Equipment Corporation Electronic keyboard

Also Published As

Publication number Publication date
GB8408181D0 (en) 1984-05-10
GB2141874A (en) 1985-01-03

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee