GB1358908A - Key operated switch and keyboard - Google Patents
Key operated switch and keyboardInfo
- Publication number
- GB1358908A GB1358908A GB5042771A GB5042771A GB1358908A GB 1358908 A GB1358908 A GB 1358908A GB 5042771 A GB5042771 A GB 5042771A GB 5042771 A GB5042771 A GB 5042771A GB 1358908 A GB1358908 A GB 1358908A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contacts
- contact
- segments
- diaphragm
- group
- 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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
- G06F3/0202—Constructional details or processes of manufacture of the input device
-
- 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
- H01H2217/00—Facilitation of operation; Human engineering
- H01H2217/012—Two keys simultaneous considerations
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2225/00—Switch site location
- H01H2225/018—Consecutive operations
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2239/00—Miscellaneous
- H01H2239/026—Internal encoding, e.g. validity bit
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Push-Button Switches (AREA)
- Input From Keyboards Or The Like (AREA)
Abstract
1358908 Keyboards INTERNATIONAL BUSINESS MACHINES CORP 29 Oct 1971 [21 Dec 1970] 50427/71 Heading G4H [Also in Division H1] Sequential contact is made to members A-F, Fig. 1, of a group of segment shaped contacts by a resilient conductive diaphragm 16, Fig. 1, 651, Fig. 6, deflectable into sequential engagement with the contacts of the contact group through an aperture U in a non-conductive separator 652 upon depression of a push-button 640. The diaphragm is associated with a number of respective buttons and contact groups, (all Fig. 1), the assembly forming a keyboard. A printed circuit board carries the contacts and appropriate interconnections to other contacts and an output terminal. Each sector is arranged a different distance from the centre of the group and a distributer pad 650 causes a pressure increase applied by the activator 646 to radially increase the area of contact of the diaphragm thus sequentially contacting the segments. A stop ring 645 limits travel of the button. Means for detecting multiple keying and whether a key is fully depressed may be provided by additionl segments and such segments may also operate a relay to actuate a battery (see also Specification 1,337,083.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US9986470A | 1970-12-21 | 1970-12-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1358908A true GB1358908A (en) | 1974-07-03 |
Family
ID=22276986
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5042771A Expired GB1358908A (en) | 1970-12-21 | 1971-10-29 | Key operated switch and keyboard |
Country Status (5)
Country | Link |
---|---|
US (1) | US3676616A (en) |
JP (1) | JPS534769B1 (en) |
DE (1) | DE2163450A1 (en) |
FR (1) | FR2119337A5 (en) |
GB (1) | GB1358908A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2133216A (en) * | 1982-11-30 | 1984-07-18 | Nippon Mektron Kk | Keyboard switch |
GB2193378A (en) * | 1986-07-11 | 1988-02-03 | Access Keyboards Limited | A push button switch actuator |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50123227A (en) * | 1974-03-15 | 1975-09-27 | ||
US4207444A (en) * | 1976-08-09 | 1980-06-10 | Kley, Fitting, Fitting, Nalley And Smith | Planar multiple switch |
US4085306A (en) * | 1977-06-09 | 1978-04-18 | Kb-Denver, Inc. | Keyboard switch assemblies |
US4228329A (en) * | 1978-06-26 | 1980-10-14 | Hitachi, Ltd. | Compact keyboard structure |
US4246452A (en) * | 1979-01-05 | 1981-01-20 | Mattel, Inc. | Switch apparatus |
DE2930056A1 (en) * | 1979-07-25 | 1981-02-12 | Varta Batterie | GALVANIC PRIME ELEMENT |
US4415781A (en) * | 1981-11-20 | 1983-11-15 | W. H. Brady Co. | Membrane switch |
US4431882A (en) * | 1982-08-12 | 1984-02-14 | W. H. Brady Co. | Transparent capacitance membrane switch |
JPS6167521U (en) * | 1984-10-09 | 1986-05-09 | ||
US4618644A (en) * | 1985-04-16 | 1986-10-21 | General Electric Company | Novel silicone-containing interpenetrating polymer networks |
JPH0256205A (en) * | 1988-08-19 | 1990-02-26 | Yonden Eng Kk | Sludge discharge device for sludge settling tank |
JPH0626088B2 (en) * | 1988-09-06 | 1994-04-06 | 富士通株式会社 | Sheet-shaped switch element |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2896033A (en) * | 1955-01-27 | 1959-07-21 | Daystrom Inc | Printed circuit assembly |
US3005055A (en) * | 1957-10-08 | 1961-10-17 | Bell Telephone Labor Inc | Tilting dial circuit selector |
US3506795A (en) * | 1967-10-24 | 1970-04-14 | Raymond F Schmidt | Electrical switch device |
-
1970
- 1970-12-21 US US99864A patent/US3676616A/en not_active Expired - Lifetime
-
1971
- 1971-10-19 JP JP8220271A patent/JPS534769B1/ja active Pending
- 1971-10-29 GB GB5042771A patent/GB1358908A/en not_active Expired
- 1971-11-16 FR FR7141952A patent/FR2119337A5/fr not_active Expired
- 1971-12-21 DE DE19712163450 patent/DE2163450A1/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2133216A (en) * | 1982-11-30 | 1984-07-18 | Nippon Mektron Kk | Keyboard switch |
GB2193378A (en) * | 1986-07-11 | 1988-02-03 | Access Keyboards Limited | A push button switch actuator |
Also Published As
Publication number | Publication date |
---|---|
US3676616A (en) | 1972-07-11 |
FR2119337A5 (en) | 1972-08-04 |
JPS4713059A (en) | 1972-07-01 |
DE2163450A1 (en) | 1972-07-13 |
JPS534769B1 (en) | 1978-02-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |