EP0758790A3 - Method and apparatus for switching mechanism - Google Patents

Method and apparatus for switching mechanism Download PDF

Info

Publication number
EP0758790A3
EP0758790A3 EP96305883A EP96305883A EP0758790A3 EP 0758790 A3 EP0758790 A3 EP 0758790A3 EP 96305883 A EP96305883 A EP 96305883A EP 96305883 A EP96305883 A EP 96305883A EP 0758790 A3 EP0758790 A3 EP 0758790A3
Authority
EP
European Patent Office
Prior art keywords
spring
housing
substantially fixed
movable contacts
actuator
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Withdrawn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
EP96305883A
Other languages
German (de)
French (fr)
Other versions
EP0758790A2 (en
Inventor
Richard Owen Glasson
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.)
CALCULAGRAPH Co
Original Assignee
CALCULAGRAPH Co
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 US08/667,299 external-priority patent/US5671841A/en
Application filed by CALCULAGRAPH Co filed Critical CALCULAGRAPH Co
Publication of EP0758790A2 publication Critical patent/EP0758790A2/en
Publication of EP0758790A3 publication Critical patent/EP0758790A3/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Withdrawn legal-status Critical Current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
    • H01H13/02—Details
    • H01H13/26—Snap-action arrangements depending upon deformation of elastic members
    • H01H13/48—Snap-action arrangements depending upon deformation of elastic members using buckling of disc springs
    • 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
    • H01H13/04—Cases; Covers
    • H01H13/06—Dustproof, splashproof, drip-proof, waterproof or flameproof casings
    • 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
    • H01H13/26—Snap-action arrangements depending upon deformation of elastic members
    • H01H13/36—Snap-action arrangements depending upon deformation of elastic members using flexing of blade springs
    • 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
    • H01H13/14—Operating parts, e.g. push-button

Landscapes

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

Abstract

A switching mechanism comprising a housing, a spring, first and second movable contacts mechanically attached to the spring, first and second substantially fixed contacts attached to the housing, and an actuator is provided. The spring comprises first and second edges substantially fixed to the housing. In a rest position the first and second movable contacts do not electrically contact the first and second substantially fixed contacts, respectively. The actuator centrally actuates the spring to cause the first and second movable contacts to move in the same direction as the central portion of the spring and to electrically contact the first and second substantially fixed contacts. The spring is preferably a snap spring shaped in the form of a cross comprising a column member and first and second protruding wings. The first and second movable contacts are preferably mechanically and electrically connected to the first and second protruding wings respectively. The actuator preferably includes a ball, a substantially cylindrical portion having a first outer diameter, and a seal having a second outer diameter. The seal is preferably an O-ring seal which is designed to fit tightly around the substantially cylindrical device and tightly inside the housing.
EP96305883A 1995-08-14 1996-08-12 Method and apparatus for switching mechanism Withdrawn EP0758790A3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US667299 1984-11-01
US514595 1990-04-26
US514595P 1995-08-14 1995-08-14
US08/667,299 US5671841A (en) 1995-08-14 1996-06-20 Method and apparatus for switching mechanism

Publications (2)

Publication Number Publication Date
EP0758790A2 EP0758790A2 (en) 1997-02-19
EP0758790A3 true EP0758790A3 (en) 1998-11-04

Family

ID=26673985

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96305883A Withdrawn EP0758790A3 (en) 1995-08-14 1996-08-12 Method and apparatus for switching mechanism

Country Status (2)

Country Link
EP (1) EP0758790A3 (en)
CA (1) CA2181489C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6175569B1 (en) * 1997-11-07 2001-01-16 International Business Machines Corporation Extending asynchronous transfer mode ATM QoS across local area networks
FR2913809B1 (en) 2007-03-14 2009-06-05 Nicomatic Sa Sa PUSH BUTTON TYPE SWITCH, AND PRINTED CIRCUIT INCLUDING THE SAME

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE350055C (en) * 1920-05-08 1922-03-13 Geza Von Martiny Electric momentary switch
US3898402A (en) * 1973-08-27 1975-08-05 Airpax Electronics Snap switch with actuating tongue
US3996429A (en) * 1975-04-18 1976-12-07 Northern Electric Company Limited Multi-contact push-button switch having plural prestressed contact members designed to provide plural circuit simultaneous switching inputs
US4250367A (en) * 1978-07-14 1981-02-10 Ranco Incorporated Snap action switch blades
US5190150A (en) * 1991-07-11 1993-03-02 Honeywell Inc. Ball bearing plunger actuator for a switch

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE350055C (en) * 1920-05-08 1922-03-13 Geza Von Martiny Electric momentary switch
US3898402A (en) * 1973-08-27 1975-08-05 Airpax Electronics Snap switch with actuating tongue
US3996429A (en) * 1975-04-18 1976-12-07 Northern Electric Company Limited Multi-contact push-button switch having plural prestressed contact members designed to provide plural circuit simultaneous switching inputs
US4250367A (en) * 1978-07-14 1981-02-10 Ranco Incorporated Snap action switch blades
US5190150A (en) * 1991-07-11 1993-03-02 Honeywell Inc. Ball bearing plunger actuator for a switch

Also Published As

Publication number Publication date
CA2181489A1 (en) 1997-02-15
CA2181489C (en) 2001-06-12
EP0758790A2 (en) 1997-02-19

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