Safety switch

Details Safety switch Safety switch

2007-02-21

2008-11-25

Friedhofer, Michael A (Department: 2832)

Electricity: circuit makers and breakers

Switch activation inhibitor

Removable actuator

C200S329000

Reexamination Certificate

active

07456368

ABSTRACT:
In order to perform maintenance of a working robot, a worker pulls a handle of a slider and moves the slider backward to thereby withdraw a slider fitting portion from a fitting hole portion and withdraw an actuator from an operating portion of a door switch. In this case, a key inserted into a key hole of a lock is rotated through 90° to vertically orient an interference protruding portion to thereby prevent fitting of the slider fitting portion into the fitting hole portion. Only in this state, the key can be withdrawn from the key hole of the lock.

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