GB2088641A - Depressable key device forming a delayed open switch - Google Patents

Depressable key device forming a delayed open switch

Info

Publication number
GB2088641A
GB2088641A GB8134756A GB8203426A GB2088641A GB 2088641 A GB2088641 A GB 2088641A GB 8134756 A GB8134756 A GB 8134756A GB 8203426 A GB8203426 A GB 8203426A GB 2088641 A GB2088641 A GB 2088641A
Authority
GB
United Kingdom
Prior art keywords
key
stud
rest position
key device
contact
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.)
Withdrawn
Application number
GB8134756A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB2088641A publication Critical patent/GB2088641A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H5/00—Snap-action arrangements, i.e. in which during a single opening operation or a single closing operation energy is first stored and then released to produce or assist the contact movement
    • H01H5/02—Energy stored by the attraction or repulsion of magnetic parts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/02—Bases, casings, or covers
    • H01H9/0271—Bases, casings, or covers structurally combining a switch and an electronic component
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/036—Return force
    • H01H2221/04—Return force magnetic

Landscapes

  • Push-Button Switches (AREA)

Abstract

Depressable key device carrying a contact plate subjected to a magnetic attraction force attracting the key towards its rest position and cooperating with a conductor surface independent of the key to form a mechanical switch closed in the rest position of the key. The contact plate (15) carried by the lower plate (14) of the key comprises a resiliently yieldable tongue (23) ended by a contact stud (22) cooperating with a contact chip (21) of a printed circuit, the tongue (23) being deformed resiliently upon depression of the key to exert on the stud (22) an action which is opposite to the magnetic attraction of the stud by a sheet (17) of magnetic material. Application particularly to keyboards and push-buttons of the type having contacts which are closed in the rest position.
GB8134756A 1980-06-06 1981-06-03 Depressable key device forming a delayed open switch Withdrawn GB2088641A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8012657A FR2484130A1 (en) 1980-06-06 1980-06-06 DEVICE WITH A FASTENABLE TOUCH FORMING A DELAYED OPEN SWITCH

Publications (1)

Publication Number Publication Date
GB2088641A true GB2088641A (en) 1982-06-09

Family

ID=9242805

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8134756A Withdrawn GB2088641A (en) 1980-06-06 1981-06-03 Depressable key device forming a delayed open switch

Country Status (13)

Country Link
JP (1) JPS57500905A (en)
AU (1) AU7227581A (en)
BE (1) BE889110A (en)
DE (1) DE3152067C2 (en)
DK (1) DK50182A (en)
ES (1) ES8301061A1 (en)
FR (1) FR2484130A1 (en)
GB (1) GB2088641A (en)
IT (1) IT1139342B (en)
NL (1) NL8120179A (en)
NO (1) NO820333L (en)
SE (1) SE8200542L (en)
WO (1) WO1981003577A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2529010B1 (en) * 1982-06-22 1985-11-15 Serras Paulet Edouard KEYBOARD WITH PUSH-BUTTONS
US6465752B2 (en) * 2001-01-03 2002-10-15 Emerson Electric Company Door unlatch switch assembly
FR2882187B1 (en) * 2005-02-17 2007-04-06 Sc2N Sa DEVICE FOR CONTROLLING THE CHANGE OF CONDITION OF A CIRCUIT
CN104362021B (en) * 2014-09-25 2016-08-24 苏州达方电子有限公司 Press-key structure

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1063683B (en) * 1955-02-28 1959-08-20 Paul Firchow Nachfgr App Und U Electric snap switch
FR1264576A (en) * 1960-05-11 1961-06-23 Schostal Sa Electrical circuit switch device
GB984832A (en) * 1962-06-16 1965-03-03 Vigilant Switchgear Ltd Snap action electrical switches
US3879602A (en) * 1973-06-11 1975-04-22 N Dimensions Keyboard
US3974347A (en) * 1975-03-10 1976-08-10 Amp Incorporated Switch assembly having rotatable, pivoted or slidable actuator and diode structure mounted between actuator contacts
FR2356199A1 (en) * 1975-10-29 1978-01-20 Serras Paulet Edouard ALPHANUMERIC KEYPAD WITH PRESSURE KEYS FOR ELECTRICAL OR ELECTRONIC MACHINE
FR2395546A2 (en) * 1977-06-22 1979-01-19 Serras Paulet Edouard ALPHANUMERIC KEYPAD WITH PRESSURE KEYS FOR ELECTRICAL OR ELECTRONIC MACHINE

Also Published As

Publication number Publication date
BE889110A (en) 1981-12-07
IT1139342B (en) 1986-09-24
NL8120179A (en) 1982-05-03
FR2484130A1 (en) 1981-12-11
NO820333L (en) 1982-02-04
ES502805A0 (en) 1982-11-01
DE3152067T1 (en) 1982-08-12
JPS57500905A (en) 1982-05-20
IT8122152A0 (en) 1981-06-05
FR2484130B1 (en) 1982-09-17
SE8200542L (en) 1982-02-01
WO1981003577A1 (en) 1981-12-10
AU7227581A (en) 1981-12-21
ES8301061A1 (en) 1982-11-01
DK50182A (en) 1982-02-05
DE3152067C2 (en) 1986-07-24

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)