FR2373136A1 - SWITCHING CONTACT MECHANISM FOR A COMPUTER TYPE KEYBOARD - Google Patents

SWITCHING CONTACT MECHANISM FOR A COMPUTER TYPE KEYBOARD

Info

Publication number
FR2373136A1
FR2373136A1 FR7736578A FR7736578A FR2373136A1 FR 2373136 A1 FR2373136 A1 FR 2373136A1 FR 7736578 A FR7736578 A FR 7736578A FR 7736578 A FR7736578 A FR 7736578A FR 2373136 A1 FR2373136 A1 FR 2373136A1
Authority
FR
France
Prior art keywords
blades
computer type
switching contact
arms
perimeter
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
FR7736578A
Other languages
French (fr)
Other versions
FR2373136B1 (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.)
RCA Corp
Original Assignee
RCA 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
Priority claimed from US05/748,025 external-priority patent/US4084071A/en
Application filed by RCA Corp filed Critical RCA Corp
Publication of FR2373136A1 publication Critical patent/FR2373136A1/en
Application granted granted Critical
Publication of FR2373136B1 publication Critical patent/FR2373136B1/fr
Granted 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
    • H01H13/7013—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 in which the movable contacts of each switch site or of a row of switch sites are formed in a single plate
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2203/00—Form of contacts
    • H01H2203/036—Form of contacts to solve particular problems
    • H01H2203/038—Form of contacts to solve particular problems to be bridged by a dome shaped contact
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2203/00—Form of contacts
    • H01H2203/036—Form of contacts to solve particular problems
    • H01H2203/054—Form of contacts to solve particular problems for redundancy, e.g. several contact pairs in parallel

Landscapes

  • Push-Button Switches (AREA)
  • Input From Keyboards Or The Like (AREA)

Abstract

L'invention concerne un dispositif de commutation. Selon l'invention, il comprend une pièce conductrice et plane 22, avec des mécanismes de contact de commutation 24a, 24b, 24c comprenant des bras de support s'étendant vers l'intérieur du pourtour d'une ouverture dans la pièce pour s'entrecroiser de façon intriquée une partie de la configuration intriquée est contourée pour former un dome des lames de contact s'étendent vers l'extérieur de l'intersection des bras, et des organes de liaison relient les extrémités externes des lames à des parties adjacentes des bras ; une plaquette de circuit a au moins un groupe de plots conducteurs 38a, 38b, 38c en alignement avec les extrémités externes des lames; et une pièce diélectrique d'espacement 28 entre la pièce et la plaquette, a des ouvertures 30a, 30b, ou 30c en alignement avec les ouvertures de la pièce dimensionnées de façon que les parties planes des bras de support s'étendent sur le pourtour 66 de l'ouverture de la pièce 28. L'invention s'applique notamment aux claviers du type de calculateur.The invention relates to a switching device. According to the invention, it comprises a conductive and planar part 22, with switching contact mechanisms 24a, 24b, 24c comprising support arms extending inwardly from the perimeter of an opening in the part for s' entangled crisscross part of the entangled configuration is contoured to form a dome of the contact blades extend outward from the intersection of the arms, and link members connect the outer ends of the blades to adjacent parts of the blades arms ; a circuit board has at least one group of conductive pads 38a, 38b, 38c in alignment with the outer ends of the blades; and a dielectric spacer 28 between the part and the wafer, has openings 30a, 30b, or 30c in alignment with the openings in the part sized so that the planar portions of the support arms extend around the perimeter 66 of the opening of the part 28. The invention applies in particular to keyboards of the computer type.

FR7736578A 1976-12-06 1977-12-05 SWITCHING CONTACT MECHANISM FOR A COMPUTER TYPE KEYBOARD Granted FR2373136A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US74802676A 1976-12-06 1976-12-06
US05/748,025 US4084071A (en) 1976-12-06 1976-12-06 Switch mechanism for a calculator type keyboard

Publications (2)

Publication Number Publication Date
FR2373136A1 true FR2373136A1 (en) 1978-06-30
FR2373136B1 FR2373136B1 (en) 1981-01-16

Family

ID=27114860

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7736578A Granted FR2373136A1 (en) 1976-12-06 1977-12-05 SWITCHING CONTACT MECHANISM FOR A COMPUTER TYPE KEYBOARD

Country Status (8)

Country Link
JP (1) JPS6051216B2 (en)
CA (1) CA1104235A (en)
DE (1) DE2754296C3 (en)
FI (1) FI64477C (en)
FR (1) FR2373136A1 (en)
GB (1) GB1592283A (en)
IT (1) IT1088702B (en)
MX (1) MX3894E (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4436970A (en) * 1982-06-07 1984-03-13 Methode Electronics, Inc. Switch assemblies
JPH044338Y2 (en) * 1985-05-31 1992-02-07
JPH0437138Y2 (en) * 1986-10-24 1992-09-01
GB2308499B (en) * 1995-12-22 2000-03-15 Nokia Mobile Phones Ltd A contact membrane for a keypad assembly

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3600528A (en) * 1969-09-25 1971-08-17 Lematex Corp Multiple switch construction
DE7437240U (en) * 1974-11-08 1975-08-07 Blaupunkt Werke Gmbh Key switch system

Also Published As

Publication number Publication date
FI773604A (en) 1978-06-07
JPS6051216B2 (en) 1985-11-13
MX3894E (en) 1981-09-08
FI64477C (en) 1983-11-10
DE2754296A1 (en) 1978-06-08
FI64477B (en) 1983-07-29
DE2754296B2 (en) 1980-08-21
GB1592283A (en) 1981-07-01
JPS5386477A (en) 1978-07-29
FR2373136B1 (en) 1981-01-16
IT1088702B (en) 1985-06-10
CA1104235A (en) 1981-06-30
DE2754296C3 (en) 1981-05-21

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Legal Events

Date Code Title Description
ST Notification of lapse