EP0323917A3 - Push-button key switches - Google Patents

Push-button key switches Download PDF

Info

Publication number
EP0323917A3
EP0323917A3 EP19890300136 EP89300136A EP0323917A3 EP 0323917 A3 EP0323917 A3 EP 0323917A3 EP 19890300136 EP19890300136 EP 19890300136 EP 89300136 A EP89300136 A EP 89300136A EP 0323917 A3 EP0323917 A3 EP 0323917A3
Authority
EP
European Patent Office
Prior art keywords
push
key switches
button key
button
keymatrix
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Withdrawn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
EP19890300136
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0323917A2 (en
Inventor
Keith Barrie Doyle
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.)
Marconi Electronic Devices Ltd
Original Assignee
Marconi Electronic Devices Ltd
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 Marconi Electronic Devices Ltd filed Critical Marconi Electronic Devices Ltd
Publication of EP0323917A2 publication Critical patent/EP0323917A2/en
Publication of EP0323917A3 publication Critical patent/EP0323917A3/en
Withdrawn legal-status Critical Current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
    • H01H13/78—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 characterised by the contacts or the contact sites
    • H01H13/785—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 characterised by the contacts or the contact sites characterised by the material of the contacts, e.g. conductive polymers
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2201/00—Contacts
    • H01H2201/022—Material
    • H01H2201/032—Conductive polymer; Rubber
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2205/00—Movable contacts
    • H01H2205/002—Movable contacts fixed to operating part
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2207/00—Connections
    • H01H2207/02—Solder
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2215/00—Tactile feedback
    • H01H2215/004—Collapsible dome or bubble
    • H01H2215/012—Positioning of individual dome
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00—Legends
    • H01H2219/002—Legends replaceable; adaptable
    • H01H2219/014—LED
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2223/00—Casings
    • H01H2223/03—Separate key housing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2233/00—Key modules
    • H01H2233/03—Key modules mounted on support plate or frame
    • H01H2233/034—Snap coupling

Landscapes

  • Push-Button Switches (AREA)
  • Switches With Compound Operations (AREA)
EP19890300136 1988-01-08 1989-01-09 Push-button key switches Withdrawn EP0323917A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8800370 1988-01-08
GB888800370A GB8800370D0 (en) 1988-01-08 1988-01-08 Push-button keyswitches

Publications (2)

Publication Number Publication Date
EP0323917A2 EP0323917A2 (en) 1989-07-12
EP0323917A3 true EP0323917A3 (en) 1990-12-27

Family

ID=10629659

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890300136 Withdrawn EP0323917A3 (en) 1988-01-08 1989-01-09 Push-button key switches

Country Status (4)

Country Link
EP (1) EP0323917A3 (no)
DK (1) DK734488A (no)
GB (2) GB8800370D0 (no)
NO (1) NO890064L (no)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009022687B3 (de) * 2009-03-12 2010-07-08 Erbe Elektromedizin Gmbh Taster, Verfahren zur Herstellung eines solchen und medizinisches Handhabungsteil

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2343060A (en) * 1941-09-25 1944-02-29 Gen Motors Corp Switch
FR1188210A (fr) * 1957-12-10 1959-09-21 Dispositif perfectionné pour la commande de circuits électriques tels quë contacteurs, rupteurs, interrupteurs et appareils similaires
US4121070A (en) * 1977-03-04 1978-10-17 Renal Systems, Inc. Enclosed push button type switch
USRE30435E (en) * 1973-02-23 1980-11-11 Brother Kogyo Kabushiki Kaisha Keyboard switch arrangement and key switch useable therein
GB2086804A (en) * 1980-11-04 1982-05-19 Standard Telephones Cables Ltd Keyblock assembly

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5624718A (en) * 1979-08-06 1981-03-09 Shinetsu Polymer Co Pushhbutton switch
JPS58113229U (ja) * 1982-01-26 1983-08-02 アルプス電気株式会社 押釦スイツチ
EP0123184B1 (de) * 1983-04-20 1990-03-14 Bebié+Co. Tastaturanordnung
GB2157496B (en) * 1984-04-14 1988-02-03 Joel Matthew Sciamma Conductive foam switch
DE3414909A1 (de) * 1984-04-19 1985-10-24 Standard Elektrik Lorenz Ag, 7000 Stuttgart Tastschalter
GB2193040A (en) * 1986-07-24 1988-01-27 De La Rue Syst Force location assembly

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2343060A (en) * 1941-09-25 1944-02-29 Gen Motors Corp Switch
FR1188210A (fr) * 1957-12-10 1959-09-21 Dispositif perfectionné pour la commande de circuits électriques tels quë contacteurs, rupteurs, interrupteurs et appareils similaires
USRE30435E (en) * 1973-02-23 1980-11-11 Brother Kogyo Kabushiki Kaisha Keyboard switch arrangement and key switch useable therein
US4121070A (en) * 1977-03-04 1978-10-17 Renal Systems, Inc. Enclosed push button type switch
GB2086804A (en) * 1980-11-04 1982-05-19 Standard Telephones Cables Ltd Keyblock assembly

Also Published As

Publication number Publication date
GB8800370D0 (en) 1988-02-10
NO890064D0 (no) 1989-01-06
NO890064L (no) 1989-07-10
DK734488D0 (da) 1988-12-30
GB2213647A (en) 1989-08-16
GB8900387D0 (en) 1989-03-08
EP0323917A2 (en) 1989-07-12
DK734488A (da) 1989-07-09

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