Switch device

Details Switch device Switch device

1990-03-28

1992-05-05

Recla, Henry J.

Electricity: circuit makers and breakers

Snap

Double snap

200283, 29622, H01H 518

Patent

active

051110105

ABSTRACT:
Two leaf springs of substantially identical width which define first and second movable members are superposed on each other at one end and connected together. A movable contact is attached to the thus connected portion. The first movable member has a slot formed in a middle portion thereof. The width of an end portion of the second movable member is set so that the end portion can be inserted in the slot. A supporting member being inserted in the slot has a portion for swingably supporting an edge portion of the slot and another portion for swingably supporting an end portion of the second movable member opposite to the movable contact. The second movable member is curved so that upon application of a operating force to the first movable member the urging direction of the second movable member changes to cause a snap action to thereby selectively bring the movable contact into contact with one of the two fixed contacts. The width of the second movable member can be increased irrespective of the size of the slot, thus making it possible to provide a large urging force.

REFERENCES:
patent: 3244848 (1966-04-01), Chapin et al.
patent: 3476898 (1969-11-01), Ehrenfels et al.
patent: 3513274 (1970-05-01), Jullien-Davin
patent: 3857003 (1974-12-01), Nishio et al.

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