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 IT3020777A IT3020777A IT1088702B IT 1088702 B IT1088702 B IT 1088702B IT 3020777 A IT3020777 A IT 3020777A 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
IT3020777A
Other languages
English (en)
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
IT3020777A 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
IT3020777A 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 (it)
CA (1) CA1104235A (it)
DE (1) DE2754296C3 (it)
FI (1) FI64477C (it)
FR (1) FR2373136A1 (it)
GB (1) GB1592283A (it)
IT (1) IT1088702B (it)
MX (1) MX3894E (it)

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 (it) * 1985-05-31 1992-02-07
JPH0437138Y2 (it) * 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
DE2452944C3 (de) * 1974-11-08 1979-10-04 Blaupunkt-Werke Gmbh, 3200 Hildesheim Tastenschaltersystem

Also Published As

Publication number Publication date
JPS5386477A (en) 1978-07-29
MX3894E (es) 1981-09-08
DE2754296B2 (de) 1980-08-21
FI64477B (fi) 1983-07-29
FR2373136B1 (it) 1981-01-16
JPS6051216B2 (ja) 1985-11-13
FI773604A (fi) 1978-06-07
GB1592283A (en) 1981-07-01
DE2754296C3 (de) 1981-05-21
CA1104235A (en) 1981-06-30
FR2373136A1 (fr) 1978-06-30
DE2754296A1 (de) 1978-06-08
FI64477C (fi) 1983-11-10

Similar Documents

Publication Publication Date Title
NL164404C (nl) Toetsenbordschakeling.
AR199821A1 (es) Conjunto conmutador a teclado
IT996435B (it) Interruttore a scatto specialmen te per tastiere di calcolatrici elettroniche tascabili
IT1015196B (it) Commutatore azionabile a mano
IT1161638B (it) Tastiera tattile piana monolitica del tipo a membrana con una schiera di interruttori
NL7612412A (nl) Stroomtoevoerschakeling.
IT1059630B (it) Interruttore a pulsante del tipo a pressione a piu contatti
IT1084961B (it) Utensile tipo chiave con azione a cricco
IT1107919B (it) Interruttore multipolare con meccanismo di scatto a ginocchiera
IT1132997B (it) Struttura di interruttore del tipo a soffio di gas
IT1088702B (it) Meccanismo di contatto di commutazione per una tastiera del tipo per calcolatori
SE440968B (sv) Manovermekanism for en omkopplare
IT953653B (it) Tastiera con interruttori a con tatti multipli
IT7819403A0 (it) Tastiera per comandare dispositivi commutatori di pressione.
DK6677A (da) Elektrisk afbrydermekanisme
IT1068977B (it) Interruttore a circuito del tipo a soffio
IT1082772B (it) Modulo di tastiera a contatti di tipo a scatto
IT1090867B (it) Disgiuntore limitatore rapido con contatto ausiliario
IT1094304B (it) Dispositivo di commutazione di tipo matriciale
DK137586B (da) Trykknapmekanisme.
IT1073385B (it) Interruttore elettrico avente un perfezionato meccanismo di azionamento
IT1159651B (it) Rele' del tipo reed, con lamine di contatto bagnate mediante mercurio
IT1085677B (it) Tastiera con tasti di commutazione a scorrimento situati fianco a fianco
SE394913B (sv) Tangentbordsstromstellare
IT1058656B (it) Perfezionamenti ai dispositivi di fissaggio in metaalo del tipo a spinta