Spring-return switch

Details Spring-return switch Spring-return switch

1993-08-17

1994-11-29

Recla, Henry J.

Electricity: circuit makers and breakers

Solid contact

Push button operated

200531, 200536, H01H 1314

Patent

active

053692381

ABSTRACT:
A spring-return switch comprises: a case; a common contact embedded in the inner surface of one of the opposite side walls of the case; a transfer contact embedded in the inner surface of the other side wall opposite to the common contact; a slider supported for vertical movement within the case and integrally provided with an operating rod; a movable contact held by the slider and having a base portion held by the slider, a first contact arm in continuous contact with the common contact and a second contact arm to be brought into contact with or to be separated from the transfer contact; and a return spring biasing the slider upward so that the slider is pressed resiliently against the inner surface of the upper wall of the case. The operating rod is dislocated from the center of the slider toward the transfer contact so that most part of pressure applied to the operating rod to depress the slider is exerted on the second contact arm of the movable contact.

REFERENCES:
patent: 4559427 (1985-12-01), Dolson et al.
patent: 4582967 (1986-04-01), Brumit et al.
patent: 4827087 (1989-05-01), Niinuma et al.
patent: 5008505 (1991-04-01), Takano et al.
patent: 5201824 (1993-04-01), Kato et al.

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