Electricity: circuit makers and breakers – Solid contact – Push button operated
Patent
1988-06-30
1990-04-24
Luebke, Renee S.
Electricity: circuit makers and breakers
Solid contact
Push button operated
200521, 200342, H01N 342
Patent
active
049202456
ABSTRACT:
A push-button switch which eliminates a dispersion in on and off timings thereof is disclosed. The push-button switch has a pressing spring, and a switch element which includes a pressing piece, a fixed contact element and a movable contact element. The movable contact element is contacted with the fixed contact element when an acting projection of the pressing spring press against a movable contact element pressing portion at an end of a leg portion of the pressing piece. The movable contact element pressing portion of the pressing piece gradually narrows towards its end, and is of substantially the same thickness of material as the leg portion thereof. The gradually narrowing movable contact element pressing portion of the pressing piece is in a contiguous relationship to the leg portion has a projection provided on a surface thereof for contacting with the acting projection of the pressing spring and has a rib provided on the opposite face thereof for pressing against the movable contact element.
REFERENCES:
patent: 4479040 (1984-10-01), Denley et al.
patent: 4529849 (1985-07-01), Kamei et al.
patent: 4613737 (1986-09-01), Nishijima
Okada Mitsuhiro
Takano Yasunari
Alps Electric Co. ,Ltd.
Luebke Renee S.
Shoup Guy W.
Winters Paul J.
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