Key-operated device for access control system

Details Key-operated device for access control system Key-operated device for access control system

E - Fixed Constructions

05

B

70/15

E05B 53/00 (2006.01) E05B 35/00 (2006.01)

Patent

CA 1122026

ABSTRACT A key-operated device, for example for controlling access to switch gear or potentially dangerous machin- ery, has a rotary motion with an axially inserted key but departs from the usual barrel lock construction which is sensitive to foreign matter. Instead it has a faceplate in front of a stationary body with a cylin- drical member rotatable in it and having a recess for the key and circumferentially spaced notches in a flange close behind the plate and prevented from direct access through the keyhole by a fixed axially extending wall on the back of the plate but accessible by appropriate lugs on the key when the latter is inserted. The rotatable member is connected through a spindle to a switch, valve or latch or other actuated device.

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