Multiple push button switch assembly with multistage actuator in

Details Multiple push button switch assembly with multistage actuator in Multiple push button switch assembly with multistage actuator in

1995-08-07

1997-07-08

Scott, J. R.

Electricity: circuit makers and breakers

Interlocking

Between plural switches

200 5E, 200 5036, H01H 926, H01H 1302

Patent

active

056463820

ABSTRACT:
A push button switch provided with a multistage actuation interlock function is composed of a casing; a pair of push buttons arranged side by side passing through an upper lid of the casing; a plurality of movable bodies arranged movably in a direction perpendicular to a depression direction of the push buttons into the casing; a plurality of movable contacts attached to the movable bodies, respectively; and a plurality of fixed contacts arranged on a base portion of the casing in confronting positional relationship with respect to the movable contacts. When each of the push buttons is depressed at each of the multistage stroke, the movable body is shifted to bring the movable contact into contact with the fixed contact, respectively in sequence. Further, an interlock plate is interposed between and associated with the two push buttons in the casing.

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patent: 4861949 (1989-08-01), Bortolloni et al.
patent: 4883927 (1989-11-01), Apfelbacher et al.
patent: 5045647 (1991-09-01), Kato

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