Snap action switching device

Details Snap action switching device Snap action switching device

1989-07-25

1991-01-08

Luebke, Renee S.

Electricity: circuit makers and breakers

Snap

Double snap

H01H 518

Patent

active

049837940

ABSTRACT:
A switching device of the type in which a moving contact provided at the free end of a movable component formed of a plate spring is brought into contact with and separated from fixed contacts by depressing the movable component by means of an operating member. The movable component is equipped with first and second movable parts which are arranged face to face and which are connected to each other at their respective free ends. A first support portion supporting the first movable part which is depressed by the operating member, is positioned farther from the free end than a second support portion supporting the second movable part. The first movable part is equipped with a curved section which allows it to remain free of the second support portion when it is depressed by the operating member. Thus, when the operating member is manipulated, the first movable part can remain free of the second support portion by virtue of its curved portion, so that the first movable member need not be equipped with a through-hole for passing the second support portion.

REFERENCES:
patent: 2405142 (1946-08-01), Holt
patent: 2813946 (1957-11-01), Cox
patent: 3189703 (1965-06-01), Chapin et al.

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