GB2001585A - Alphanumeric control keyboard - Google Patents

Alphanumeric control keyboard

Info

Publication number
GB2001585A
GB2001585A GB787827389A GB7827389A GB2001585A GB 2001585 A GB2001585 A GB 2001585A GB 787827389 A GB787827389 A GB 787827389A GB 7827389 A GB7827389 A GB 7827389A GB 2001585 A GB2001585 A GB 2001585A
Authority
GB
United Kingdom
Prior art keywords
key
control keyboard
plate
alphanumeric control
keyboard
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.)
Granted
Application number
GB787827389A
Other versions
GB2001585B (en
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 GB2001585A publication Critical patent/GB2001585A/en
Application granted granted Critical
Publication of GB2001585B publication Critical patent/GB2001585B/en
Expired legal-status Critical Current

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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06C—DIGITAL COMPUTERS IN WHICH ALL THE COMPUTATION IS EFFECTED MECHANICALLY
    • G06C7/00—Input mechanisms
    • G06C7/02—Keyboards
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Push-Button Switches (AREA)

Abstract

Alphanumeric control keyboard with depressible keys, said keys having flanges which prevent them from escaping from orifices of a plate of the keyboard. The flange of each key is constituted of a metal plate (23) which forms simultaneously contact means with conductive elements (15) associated to the key (11) and magnetic return means biasing the key (11) into its inoperative position in abutment against the plate (10). <IMAGE>
GB787827389A 1977-06-22 1978-06-20 Alpha-numeric control keyboard with depressible keys for electric or electronic machines Expired GB2001585B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7719170A FR2395546A2 (en) 1977-06-22 1977-06-22 ALPHANUMERIC KEYPAD WITH PRESSURE KEYS FOR ELECTRICAL OR ELECTRONIC MACHINE

Publications (2)

Publication Number Publication Date
GB2001585A true GB2001585A (en) 1979-02-07
GB2001585B GB2001585B (en) 1982-01-27

Family

ID=9192424

Family Applications (1)

Application Number Title Priority Date Filing Date
GB787827389A Expired GB2001585B (en) 1977-06-22 1978-06-20 Alpha-numeric control keyboard with depressible keys for electric or electronic machines

Country Status (7)

Country Link
BE (1) BE868309R (en)
DE (1) DE2826262C2 (en)
FR (1) FR2395546A2 (en)
GB (1) GB2001585B (en)
IT (1) IT1110482B (en)
NL (1) NL179012C (en)
SE (1) SE437574B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2443130A1 (en) * 1978-11-29 1980-06-27 Serras Paulet Edouard CONTROL KEYBOARD FOR ELECTRIC OR ELECTRONIC DEVICES
FR2451095A1 (en) * 1979-03-08 1980-10-03 Telephonie Ind Commerciale PUSH BUTTON CONTROL KEYBOARD
FR2476900A1 (en) * 1980-02-27 1981-08-28 Telephonie Ind Commerciale PUSH BUTTON FOR CONTROL KEYBOARD AND METHOD OF MAKING SAME
FR2484130A1 (en) * 1980-06-06 1981-12-11 Serras Paulet Edouard DEVICE WITH A FASTENABLE TOUCH FORMING A DELAYED OPEN SWITCH
DE3346485A1 (en) * 1983-12-22 1985-07-04 Siemens AG, 1000 Berlin und 8000 München KEY COVER FOR A KEYBOARD ARRANGED IN A HOUSING
EP0309741A1 (en) * 1987-09-30 1989-04-05 Oerlikon-Contraves AG Push-button electrical switch
US5523730C1 (en) * 1995-06-02 2002-01-15 Van Anthony J Zeeland Switch with mangnetically-coupled armature
US5666096A (en) * 1995-06-02 1997-09-09 Van Zeeland; Anthony J. Switch with magnetically-coupled armature

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1151142A (en) * 1967-01-10 1969-05-07 Electronic Components Ltd Improvements in or relating to Electrical Switches
US3506795A (en) * 1967-10-24 1970-04-14 Raymond F Schmidt Electrical switch device
US3641286A (en) * 1970-10-05 1972-02-08 Selectro Corp Electromechanical keyboard independently operated switch mechanism with improved conductive resilient actuating means
DE2326752A1 (en) * 1973-05-25 1974-12-19 Radomir Kujovic MEMBRANE MICROSWITCH
CH559966A5 (en) * 1973-11-30 1975-03-14 Metzler Hans Vito Fabrik Elekt Printed cct. keyboard switch for electronic calculators - has resetting spring with plate-shaped contact element
US3916360A (en) * 1974-08-09 1975-10-28 Singer Co Magnetic keyboard
US4066860A (en) * 1974-09-26 1978-01-03 Sharp Kabushiki Kaisha Pushbutton switch key arrangement for keyboards having indicia
FR2356199A1 (en) * 1975-10-29 1978-01-20 Serras Paulet Edouard ALPHANUMERIC KEYPAD WITH PRESSURE KEYS FOR ELECTRICAL OR ELECTRONIC MACHINE

Also Published As

Publication number Publication date
NL7806767A (en) 1978-12-28
IT1110482B (en) 1985-12-23
IT7824774A0 (en) 1978-06-21
DE2826262A1 (en) 1979-01-04
NL179012B (en) 1986-01-16
GB2001585B (en) 1982-01-27
FR2395546A2 (en) 1979-01-19
SE7807106L (en) 1978-12-23
FR2395546B2 (en) 1983-10-21
SE437574B (en) 1985-03-04
BE868309R (en) 1978-10-16
NL179012C (en) 1986-06-16
DE2826262C2 (en) 1987-05-27

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19940620