IT1088702B - Meccanismo di contatto di commutazione per una tastiera del tipo per calcolatori - Google Patents

Meccanismo di contatto di commutazione per una tastiera del tipo per calcolatori

Info

Publication number
IT1088702B
IT1088702B IT30207/77A IT3020777A IT1088702B IT 1088702 B IT1088702 B IT 1088702B IT 30207/77 A IT30207/77 A IT 30207/77A IT 3020777 A IT3020777 A IT 3020777A IT 1088702 B IT1088702 B IT 1088702B
Authority
IT
Italy
Prior art keywords
calculators
keyboard
type
switching contact
contact mechanism
Prior art date
Application number
IT30207/77A
Other languages
English (en)
Italian (it)
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
Application granted granted Critical
Publication of IT1088702B publication Critical patent/IT1088702B/it

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
IT30207/77A 1976-12-06 1977-11-29 Meccanismo di contatto di commutazione per una tastiera del tipo per calcolatori IT1088702B (it)

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 (1)

Publication Number Publication Date
IT1088702B true IT1088702B (it) 1985-06-10

Family

ID=27114860

Family Applications (1)

Application Number Title Priority Date Filing Date
IT30207/77A IT1088702B (it) 1976-12-06 1977-11-29 Meccanismo di contatto di commutazione per una tastiera del tipo per calcolatori

Country Status (8)

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

Families Citing this family (3)

* 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:Method) * 1985-05-31 1992-02-07
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 (de) * 1974-11-08 1975-08-07 Blaupunkt Werke Gmbh Tastenschaltersystem

Also Published As

Publication number Publication date
FI773604A7 (fi) 1978-06-07
JPS5386477A (en) 1978-07-29
CA1104235A (en) 1981-06-30
FR2373136B1 (en:Method) 1981-01-16
DE2754296A1 (de) 1978-06-08
FI64477C (fi) 1983-11-10
MX3894E (es) 1981-09-08
DE2754296B2 (de) 1980-08-21
DE2754296C3 (de) 1981-05-21
FR2373136A1 (fr) 1978-06-30
JPS6051216B2 (ja) 1985-11-13
FI64477B (fi) 1983-07-29
GB1592283A (en) 1981-07-01

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