Safety switch

Details Safety switch Safety switch

1995-10-02

1997-04-22

Walczak, David J.

Electricity: circuit makers and breakers

Switch activation inhibitor

Removable actuator

200 4304, H01H 2700

Patent

active

056222530

ABSTRACT:
A safety switch with a contact-carrying spring-loaded plunger includes in a housing portion with two access openings for selective insertion by an actuator. Accommodated in the housing portion is a switching and locking mechanism with a switch wheel that is rotatably mounted on an axle. Positioned in a cutout on each side of the switch wheel is a locking member which is displaceably disposed against the force of a spring substantially radially to the axle. The locking member has two ramp surfaces respectively associated to the access openings and adapted for cooperation with the actuator for shift in radial direction. Each locking member has a locking zone in form of a keyed bore in the passage area of the axle to cooperate with a keyed portion of the axle to securely fix the axle in place.

REFERENCES:
patent: 3858018 (1974-12-01), Welley
patent: 5272279 (1993-12-01), Filshie
patent: 5420385 (1995-05-01), Cooper
patent: 5464954 (1995-11-01), Kimura et al.
patent: 5473127 (1995-12-01), Falcon et al.

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