GB1082902A - Keyboard switch - Google Patents

Keyboard switch

Info

Publication number
GB1082902A
GB1082902A GB15202/65A GB1520265A GB1082902A GB 1082902 A GB1082902 A GB 1082902A GB 15202/65 A GB15202/65 A GB 15202/65A GB 1520265 A GB1520265 A GB 1520265A GB 1082902 A GB1082902 A GB 1082902A
Authority
GB
United Kingdom
Prior art keywords
spring
housing
contact
fixed contact
key member
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
GB15202/65A
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.)
Navigation Computer Corp
Original Assignee
Navigation Computer 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
Application filed by Navigation Computer Corp filed Critical Navigation Computer Corp
Publication of GB1082902A publication Critical patent/GB1082902A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
    • 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
    • H01H13/12—Movable parts; Contacts mounted thereon
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/24—Contacts characterised by the manner in which co-operating contacts engage by abutting with resilient mounting
    • H01H1/242—Contacts characterised by the manner in which co-operating contacts engage by abutting with resilient mounting the contact forming a part of a coil spring

Landscapes

  • Push-Button Switches (AREA)

Abstract

1,082,902. Press-button retractive switches. NAVIGATION COMPUTER CORPORATION. April 9, 1965 [May 22, 1964], No. 15202/65. Heading H2B. An electrical switch mechanism comprises a housing 10 and a key member 19 normally spring-biased to rest in one position and displaceable against the spring bias to actuate contacts 14, 15 and to engage resilient damping pads 32 to absorb the impact of the engagement at the end of the contact actuating movement of the key member 19 and to give the switch a soft bottoming characteristic to eliminate the feeling of an abrupt stop. Pads 32 may be of semi-rigid urethane. Member 19 slides in grooves 18 in housing 10 and nylon bumper 20 bears on the free end 16 of coil spring 15 so that when push 21 is depressed spring 15 is flexed and contacts fixed contact 14. The contact region of spring 15 is plated with precious metals such as rhodium. The antiresonant vibration node region of spring 15, when actuated by flexing end 16 is located at the position of fixed contact 14 to avoid bounce or chatter due to resonance of coil spring 15. The base of housing 10, through which terminals 12, 13 extend, has a slanted surface for permitting direct mounting on a flat printed circuit panel of a keyboard assembly.
GB15202/65A 1964-05-22 1965-04-09 Keyboard switch Expired GB1082902A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US369446A US3244847A (en) 1964-05-22 1964-05-22 Manually operated keyboard switch in a stationary mount with guided shaftway

Publications (1)

Publication Number Publication Date
GB1082902A true GB1082902A (en) 1967-09-13

Family

ID=23455517

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15202/65A Expired GB1082902A (en) 1964-05-22 1965-04-09 Keyboard switch

Country Status (3)

Country Link
US (1) US3244847A (en)
FR (1) FR1434726A (en)
GB (1) GB1082902A (en)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3311210A (en) * 1965-10-12 1967-03-28 Navigation Computer Corp Sloping panel keyboard mount
DE1248132B (en) * 1965-12-27 1967-08-24 Walther Bueromasch Gmbh Electric snap button
FI44920C (en) * 1967-02-24 1972-02-10 Ericsson Telefon Ab L M Push button switch
DE1285041B (en) * 1967-08-05 1968-12-12 Wilhelm Ruf Kg Elektrotechn Sp Single or multi-pole slide switch, especially for printed circuits
US3464532A (en) * 1967-08-30 1969-09-02 Burroughs Corp Keyboard pushbutton with character visible in depressed position
US3521015A (en) * 1968-05-13 1970-07-21 Singer Co Key switch with axially misaligned shuttle bridging member
US3591750A (en) * 1969-04-10 1971-07-06 Alps Electric Co Ltd Stopper plate mounting for pushbutton switch
US3679038A (en) * 1970-07-27 1972-07-25 Singer Co Electrical circuit for impact contact keyboard
DE2047997B2 (en) * 1970-09-30 1976-10-07 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt ELECTRONIC SINGLE ENTER KEY
GB1460021A (en) * 1973-01-24 1976-12-31 Gen Electric Co Ltd Electric switches
JPS5413561Y2 (en) * 1973-05-28 1979-06-08
US3842229A (en) * 1973-07-05 1974-10-15 Texas Instruments Inc Keyboard pushbutton switch
US3920943A (en) * 1974-03-22 1975-11-18 Magsat Corp Electrical switch
US4004121A (en) * 1974-04-04 1977-01-18 Mechanical Enterprises, Inc. Electrical switch with wire beam spring contact closer
US3946185A (en) * 1974-08-21 1976-03-23 Intersil, Inc. Spring wire contact assembly
US3924089A (en) * 1974-08-28 1975-12-02 Stackpole Component Co Keyboard switch
GB1511699A (en) * 1975-12-02 1978-05-24 Plessey Co Ltd Ignition devices
JPS54184481U (en) * 1978-06-19 1979-12-27
US4209682A (en) * 1978-07-19 1980-06-24 Rood Robert M Low bounce momentary contact switch
JPS5988835U (en) * 1982-12-06 1984-06-15 ホシデン株式会社 switch
FR2581240B1 (en) * 1985-04-29 1988-12-23 Crouzet Sa QUICK ACTION SWITCH
US4730091A (en) * 1986-04-16 1988-03-08 Glenn Hiller Alarm switch
WO2006029418A1 (en) * 2004-09-06 2006-03-16 Poznan Aleksandar Komadinovic Switching arrangement for electrical fence

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE555341A (en) *
US1531347A (en) * 1922-04-25 1925-03-31 American Telephone & Telegraph Relay
US1723242A (en) * 1925-03-03 1929-08-06 Remington Rand Inc Contact unit for typewriter-key punches
CH238218A (en) * 1941-02-05 1945-06-30 Philips Nv Device with an electrical contact part which is movably arranged in a carrier.
US2523768A (en) * 1945-10-02 1950-09-26 Knutsen Knut Andreas Keyboard for electrically controlled accounting or card punching machines
US2567421A (en) * 1947-01-30 1951-09-11 Bruno Martinuzzi Push-button switch
US2648731A (en) * 1950-05-29 1953-08-11 Pass & Seymour Inc Quiet snap switch
US2835754A (en) * 1957-03-20 1958-05-20 Gen Electric Multiple pushbutton switch with torsion spring contacts

Also Published As

Publication number Publication date
US3244847A (en) 1966-04-05
FR1434726A (en) 1966-04-08

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