IE812837L - Electrical switch assembly - Google Patents

Electrical switch assembly

Info

Publication number
IE812837L
IE812837L IE283781A IE283781A IE812837L IE 812837 L IE812837 L IE 812837L IE 283781 A IE283781 A IE 283781A IE 283781 A IE283781 A IE 283781A IE 812837 L IE812837 L IE 812837L
Authority
IE
Ireland
Prior art keywords
fingers
another
free ends
carrier panel
conductors
Prior art date
Application number
IE283781A
Other versions
IE52804B1 (en
Original Assignee
Miraco Inc
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 US06/290,220 external-priority patent/US4446342A/en
Priority claimed from US06/318,202 external-priority patent/US4402131A/en
Application filed by Miraco Inc filed Critical Miraco Inc
Publication of IE812837L publication Critical patent/IE812837L/en
Publication of IE52804B1 publication Critical patent/IE52804B1/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
    • H01H1/40—Contact mounted so that its contact-making surface is flush with adjoining insulation
    • H01H1/403—Contacts forming part of a printed circuit
    • 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
    • H01H13/02—Details
    • H01H13/12—Movable parts; Contacts mounted thereon
    • 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

Landscapes

  • Push-Button Switches (AREA)

Abstract

The present invention provides low cost electrical switch assemblies and methods for manufacturing same. The switch assembly comprises an array of resiliently flexible metallic conductors (24a, 24b) arranged in predetermined circuit pathways on a dielectric carrier panel. A plurality of apertures (32) or cavities are provided at predetermined locations in the carrier panel (30). The switch contacts (40, 42) comprise a pair of generally L-shaped fingers which are integral extensions of the flexible conductors. The fingers extend from opposite edge surfaces of the carrier panel defining an associated aperture or cavity, to pass one another over or within their associated aperture or cavity, with the free ends (54, 56) of the fingers terminating adjacent one another. The free ends (54, 56) of the L-shaped fingers extend in part above or below the plane of the carrier panel, and are positioned in spaced relationship to one another so that the conductors they connect are normally open, but are sufficiently close to one another so that slight deflection of the fingers from their normal orientation moves the free ends in contact with each other to thereby close the switch. Alternatively, the free ends of the L-shaped fingers are positioned in contact with one another so that slight deflection of the fingers from their normal orientation breaks their contact. The metallic conductors and integral switch contacts may be formed by photoimaging and either chemical milling or additive techniques such as plating up or solder doming, and/or mechanical milling and/or precision die stamping techniques. [EP0055053A1]
IE283781A 1980-12-15 1981-12-03 Electrical switch assembly and method of manufacture IE52804B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US21616280A 1980-12-15 1980-12-15
US06/290,220 US4446342A (en) 1980-12-15 1981-08-05 Electrical switch assembly and method of manufacture
US06/318,202 US4402131A (en) 1981-08-05 1981-11-04 Electrical switch assembly and method of manufacture

Publications (2)

Publication Number Publication Date
IE812837L true IE812837L (en) 1982-06-15
IE52804B1 IE52804B1 (en) 1988-03-16

Family

ID=27396239

Family Applications (1)

Application Number Title Priority Date Filing Date
IE283781A IE52804B1 (en) 1980-12-15 1981-12-03 Electrical switch assembly and method of manufacture

Country Status (5)

Country Link
EP (1) EP0055053B1 (en)
CA (1) CA1163725A (en)
DE (1) DE3175487D1 (en)
GB (1) GB2089573B (en)
IE (1) IE52804B1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0117732A3 (en) * 1983-03-01 1986-09-24 Plessey Overseas Limited Push buttons
US4523063A (en) * 1983-12-05 1985-06-11 Gte Valeron Corporation Touch probe having nonconductive contact carriers
DE19538767A1 (en) * 1995-10-18 1997-04-24 Teves Gmbh Alfred Switches with flexible conductor foil as a fixed contact and connection to connection contacts
GB2435448B (en) * 2006-02-20 2009-12-02 Devlin Electronics Ltd A Healthcare keyboard

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL120381C (en) *
GB957801A (en) * 1960-05-02 1964-05-13 Ralph William Furness Improvements in or relating to the manufacture of decorative or electrical conducting patterns
US3294927A (en) * 1965-02-01 1966-12-27 George A Hill Resilient flap element for switch apparatus
US3987259A (en) * 1975-06-12 1976-10-19 Globe-Union Inc. Membrane switch apparatus having sequential bridging contact arrangement
JPS5927940B2 (en) * 1976-09-14 1984-07-09 キヤノン株式会社 small calculator

Also Published As

Publication number Publication date
IE52804B1 (en) 1988-03-16
EP0055053B1 (en) 1986-10-15
DE3175487D1 (en) 1986-11-20
CA1163725A (en) 1984-03-13
GB2089573B (en) 1985-04-17
EP0055053A1 (en) 1982-06-30
GB2089573A (en) 1982-06-23

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Legal Events

Date Code Title Description
MM4A Patent lapsed