GB2141874B - Keyboard with membrane switch array - Google Patents
Keyboard with membrane switch arrayInfo
- 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
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
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4467150A (en) * | 1982-02-24 | 1984-08-21 | Digital Equipment Corporation | Electronic keyboard |
-
1984
- 1984-03-29 GB GB08408181A patent/GB2141874B/en not_active Expired
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 |