Push button switch

Details Push button switch Push button switch

1992-02-21

1993-04-06

Cusick, Ernest G.

Electricity: circuit makers and breakers

Electric switch details

Actuators

200517, 200520, 200 5A, 200345, H01H 1314, H01H 1304

Patent

active

051995557

ABSTRACT:
A push button switch has a stem having a thin flange without requiring fabrication of synthetic material, thereby realizing a push button switch having good productivity and high reliability. To this end, a push button switch has a housing (10) having an opening, a fixed contact (17) exposed on the inner bottom surface, a movable contact (13) disposed to face said fixed contact (17), a stem (15) having a flange portion around its main body and being mounted on the housing (10) movably in an up-and-down direction, the movable contact (13) being contacted with the fixed contact (17) when said stem (15) is lowered, and the stem (15) being formed by a first metallic material (21) and a second metallic material (22), the first metallic material (21) having a through hole (21a) surrounded by a tapered surface (21b) and chiefly constituting the flange portion of the second metallic material (22) being press-fitted into the through hole (21a) on the first metallic material (21) so as to be press-fixed on the tapered surface (21b) of the first metallic material (21) through press processing.

REFERENCES:
patent: 3952174 (1976-04-01), Boulanger et al.
patent: 4331851 (1982-05-01), Johnson
patent: 4493959 (1985-01-01), Viebrantz
patent: 4638151 (1987-01-01), Suwa
patent: 4803321 (1989-02-01), Lefebvre
patent: 5055642 (1991-10-01), Miyata

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