EP0273842A3 - Push-button switch and keyboard with such a switch - Google Patents

Push-button switch and keyboard with such a switch Download PDF

Info

Publication number
EP0273842A3
EP0273842A3 EP87450023A EP87450023A EP0273842A3 EP 0273842 A3 EP0273842 A3 EP 0273842A3 EP 87450023 A EP87450023 A EP 87450023A EP 87450023 A EP87450023 A EP 87450023A EP 0273842 A3 EP0273842 A3 EP 0273842A3
Authority
EP
European Patent Office
Prior art keywords
switch
studs
lines
circuit
push
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Withdrawn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
EP87450023A
Other languages
German (de)
French (fr)
Other versions
EP0273842A2 (en
Inventor
Alain Reynal
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.)
Alphameric SA
Original Assignee
Alphameric SA
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 Alphameric SA filed Critical Alphameric SA
Publication of EP0273842A2 publication Critical patent/EP0273842A2/en
Publication of EP0273842A3 publication Critical patent/EP0273842A3/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Withdrawn legal-status Critical Current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
    • 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
    • H01H2201/00—Contacts
    • H01H2201/022—Material
    • H01H2201/032—Conductive polymer; Rubber
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2215/00—Tactile feedback
    • H01H2215/004—Collapsible dome or bubble
    • H01H2215/008—Part of substrate or membrane
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2217/00—Facilitation of operation; Human engineering
    • H01H2217/02—After travel
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/058—Actuators to avoid tilting or skewing of contact area or actuator

Landscapes

  • Push-Button Switches (AREA)
  • Switch Cases, Indication, And Locking (AREA)

Abstract

La présente invention concerne un commutateur du type à poussoir compor­ tant au moins deux plots (1) disposé chacun en extrémité d'au moins une ligne d'un circuit électrique et d'au moins un plot (2) destiné à con­ necter les lignes pour fermer au moins un circuit par contact entre les plots d'extrémité (1) des dites lignes, caractérisé en ce que les plots d'extrémité (1) des lignes de circuit et le ou les plots de connexion (2) sont en une même matière résistive et parfaitement chimiquement stable sous des conditions normales d'utilisation. The present invention relates to a switch of the push button type both at least two studs (1) each disposed at the end of at least one line of an electrical circuit and at least one stud (2) intended to con connect the lines to close at least one circuit by contact between the end studs (1) of said lines, characterized in that the studs end (1) of the circuit lines and the connection pad (s) (2) are in the same resistive material and perfectly chemically stable under normal conditions of use.

EP87450023A 1986-11-28 1987-11-26 Push-button switch and keyboard with such a switch Withdrawn EP0273842A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8616775A FR2607619B1 (en) 1986-11-28 1986-11-28 PUSH-TYPE SWITCH AND KEYBOARD WITH SUCH SWITCHES
FR8616775 1986-11-28

Publications (2)

Publication Number Publication Date
EP0273842A2 EP0273842A2 (en) 1988-07-06
EP0273842A3 true EP0273842A3 (en) 1988-07-20

Family

ID=9341425

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87450023A Withdrawn EP0273842A3 (en) 1986-11-28 1987-11-26 Push-button switch and keyboard with such a switch

Country Status (3)

Country Link
EP (1) EP0273842A3 (en)
BR (1) BR8706433A (en)
FR (1) FR2607619B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5389755A (en) * 1993-10-27 1995-02-14 Chen; Pao-Chin Computer key switch device
CN108899675A (en) * 2018-07-16 2018-11-27 电子科技大学 A kind of metal consent interface unit and method for realizing input equipment hot plug

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2033892A5 (en) * 1969-02-24 1970-12-04 Sudduth William
US4264477A (en) * 1978-02-21 1981-04-28 Chomerics, Inc. Keyboard
EP0051749A1 (en) * 1980-11-06 1982-05-19 PREH, Elektrofeinmechanische Werke Jakob Preh Nachf. GmbH & Co. Keyboard
GB2092382A (en) * 1981-01-29 1982-08-11 Standard Telephones Cables Ltd Contact dimple pad
US4518833A (en) * 1983-07-18 1985-05-21 Gates Data Products, Inc. Conductive elastomeric ink composition

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2033892A5 (en) * 1969-02-24 1970-12-04 Sudduth William
US4264477A (en) * 1978-02-21 1981-04-28 Chomerics, Inc. Keyboard
EP0051749A1 (en) * 1980-11-06 1982-05-19 PREH, Elektrofeinmechanische Werke Jakob Preh Nachf. GmbH & Co. Keyboard
GB2092382A (en) * 1981-01-29 1982-08-11 Standard Telephones Cables Ltd Contact dimple pad
US4518833A (en) * 1983-07-18 1985-05-21 Gates Data Products, Inc. Conductive elastomeric ink composition

Also Published As

Publication number Publication date
FR2607619A1 (en) 1988-06-03
EP0273842A2 (en) 1988-07-06
FR2607619B1 (en) 1992-03-13
BR8706433A (en) 1988-07-12

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Effective date: 19911022

RIN1 Information on inventor provided before grant (corrected)

Inventor name: REYNAL, ALAIN