GB1493809A - Push button keyboard members - Google Patents
Push button keyboard membersInfo
- Publication number
- GB1493809A GB1493809A GB52466/74A GB5246674A GB1493809A GB 1493809 A GB1493809 A GB 1493809A GB 52466/74 A GB52466/74 A GB 52466/74A GB 5246674 A GB5246674 A GB 5246674A GB 1493809 A GB1493809 A GB 1493809A
- Authority
- GB
- United Kingdom
- Prior art keywords
- push button
- dec
- button keyboard
- disc
- keyboard members
- 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
- H01H13/7006—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 comprising a separate movable contact element for each switch site, all other elements being integrated in layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2221/00—Actuators
- H01H2221/008—Actuators other then push button
- H01H2221/016—Lever; Rocker
Landscapes
- Push-Button Switches (AREA)
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
Abstract
1493809 Mechanical switches TEXAS INSTRUMENTS Inc 4 Dec 1974 [17 Dec 1973] 52466/74 Heading H1N [Also in Division B6] A keyboard assembly comprises an integral member including keys each defined by a U- shaped slot in the member, each key consisting of a raised button 34, a lever portion 42, and an integral hinge portion 40. Each key includes a projection 38 for engagement with a convex metal disc 20 through an insulating layer 24 the disc being deformable to close a conductive path between contact elements 14, 18.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US42541873A | 1973-12-17 | 1973-12-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1493809A true GB1493809A (en) | 1977-11-30 |
Family
ID=23686486
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB52466/74A Expired GB1493809A (en) | 1973-12-17 | 1974-12-04 | Push button keyboard members |
Country Status (12)
Country | Link |
---|---|
JP (1) | JPS5093339A (en) |
AR (1) | AR204336A1 (en) |
BR (1) | BR7410490D0 (en) |
DE (1) | DE2459464B2 (en) |
DK (1) | DK647774A (en) |
ES (1) | ES432571A1 (en) |
FR (1) | FR2254821B1 (en) |
GB (1) | GB1493809A (en) |
IT (1) | IT1024439B (en) |
NL (1) | NL7415461A (en) |
SE (1) | SE7415784L (en) |
YU (1) | YU322574A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2211459A (en) * | 1987-10-28 | 1989-07-05 | Huo Lu Tsai | Method of manufacturing a keyboard |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4055734A (en) * | 1973-12-26 | 1977-10-25 | Thomas John Hayden | Keyboard switch assembly with hinged pushbuttons and cantilevered terminal members |
US4029916A (en) * | 1975-04-18 | 1977-06-14 | Northern Electric Company Limited | Multi-contact push-button switch and plural embodiment for keyboard switch assembly |
US4070555A (en) * | 1975-11-28 | 1978-01-24 | The Alliance Manufacturing Company | Switching mechanism |
US4066850A (en) * | 1976-06-04 | 1978-01-03 | Ncr Corporation | Keyboard switch assembly having interchangeable cover plate, indicating layer and actuator switch assembly in any operative combination |
US4190748A (en) * | 1977-01-31 | 1980-02-26 | Rogers Corporation | Keyboard switch assembly |
US4128744A (en) * | 1977-02-22 | 1978-12-05 | Chomerics, Inc. | Keyboard with concave and convex domes |
US4136270A (en) * | 1977-03-24 | 1979-01-23 | Gte Automatic Electric Laboratories Incorporated | Actuator for pushbutton switch |
DE2909882A1 (en) * | 1977-08-31 | 1980-09-25 | Braun Ag | Casing for electric razor,camera etc. - has electrical components on plate attached to another plate whose posts project through perforated outer wall |
JPS5843147Y2 (en) * | 1978-12-28 | 1983-09-29 | シャープ株式会社 | key input device |
CA1100165A (en) * | 1979-02-02 | 1981-04-28 | Roger Perks | Pushbutton switch assembly for telecommunications and other input apparatus |
JPS5924109Y2 (en) * | 1979-06-22 | 1984-07-17 | シチズン時計株式会社 | Push button structure for small portable devices |
FR2460444A1 (en) * | 1979-07-04 | 1981-01-23 | Jaeger | LIGHTING DEVICE FOR KEYBOARDS |
DE2933150C2 (en) * | 1979-08-16 | 1982-03-18 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Keypad |
DE2953881C1 (en) * | 1979-08-16 | 1982-07-22 | Telefunken Fernseh Und Rundfunk Gmbh, 3000 Hannover | Keypad |
JPS57152725U (en) * | 1981-03-20 | 1982-09-25 | ||
SE433675B (en) * | 1981-04-09 | 1984-06-04 | Ericsson Telefon Ab L M | PROCEDURE FOR MANUFACTURING A PRESSURE BUTTON |
DE3208559C2 (en) * | 1982-03-10 | 1985-12-05 | Preh, Elektrofeinmechanische Werke Jakob Preh Nachf. Gmbh & Co, 8740 Bad Neustadt | keyboard |
CA1188389A (en) * | 1982-06-28 | 1985-06-04 | Northern Telecom Limited | Pushbutton switch assembly |
DE3305556C1 (en) * | 1983-02-18 | 1984-09-13 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Keyboard switch panel for an electrical apparatus |
KR900002951B1 (en) * | 1985-01-25 | 1990-05-03 | 마쯔시다덴기산교 가부시기가이샤 | Push-button device |
US5006680A (en) * | 1989-05-05 | 1991-04-09 | Augat, Inc. | Snap action switch |
DE10142503A1 (en) * | 2001-08-30 | 2003-03-20 | Bsh Bosch Siemens Hausgeraete | Electric kitchen appliance |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS412186Y1 (en) * | 1965-05-14 | 1966-02-15 | ||
US3725907A (en) * | 1971-06-01 | 1973-04-03 | Texas Instruments Inc | Pushbutton keyboard system |
-
1974
- 1974-01-01 AR AR256614A patent/AR204336A1/en active
- 1974-11-26 FR FR7438759A patent/FR2254821B1/fr not_active Expired
- 1974-11-27 NL NL7415461A patent/NL7415461A/en not_active Application Discontinuation
- 1974-12-04 ES ES432571A patent/ES432571A1/en not_active Expired
- 1974-12-04 GB GB52466/74A patent/GB1493809A/en not_active Expired
- 1974-12-06 YU YU03225/74A patent/YU322574A/en unknown
- 1974-12-12 DK DK647774A patent/DK647774A/da not_active Application Discontinuation
- 1974-12-12 IT IT54523/74A patent/IT1024439B/en active
- 1974-12-16 BR BR10490/74A patent/BR7410490D0/en unknown
- 1974-12-16 JP JP49144356A patent/JPS5093339A/ja active Pending
- 1974-12-16 DE DE19742459464 patent/DE2459464B2/en not_active Ceased
- 1974-12-16 SE SE7415784A patent/SE7415784L/xx unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2211459A (en) * | 1987-10-28 | 1989-07-05 | Huo Lu Tsai | Method of manufacturing a keyboard |
GB2211459B (en) * | 1987-10-28 | 1991-07-03 | Huo Lu Tsai | Manufacturing method of a keyboard |
Also Published As
Publication number | Publication date |
---|---|
DK647774A (en) | 1975-08-18 |
BR7410490D0 (en) | 1975-09-16 |
AR204336A1 (en) | 1975-12-22 |
DE2459464A1 (en) | 1975-06-26 |
DE2459464B2 (en) | 1977-09-08 |
ES432571A1 (en) | 1976-11-01 |
IT1024439B (en) | 1978-06-20 |
SE7415784L (en) | 1975-06-18 |
FR2254821A1 (en) | 1975-07-11 |
FR2254821B1 (en) | 1976-12-31 |
JPS5093339A (en) | 1975-07-25 |
YU322574A (en) | 1982-05-31 |
NL7415461A (en) | 1975-06-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PE20 | Patent expired after termination of 20 years |
Effective date: 19941203 |