PROTECTIVE DEVICE Russian patent published in 1994 - IPC

FIELD: building. SUBSTANCE: locking means has a split lock located on the end of a spring-loaded rod of a locking mechanism. A bush has start chamfers to receive the lock, a lock hole for lock shoulders and a cross slot to make the lock flats come out. The locking mechanism made integral with a loop has limiting members, for example, in the form of a T-shaped key in the upper part of an intermediate bush and a corresponding half-closed key slot on a hollow axle. The lower part of the intermediate bush has a hollow which, in turn, has a cross pin tangentially located in the hole of the intermediate bush, and an eccentrically displaced hollow in the rotary clutch. A control handle has mating members in the form of an eccentrically displaced cam, a tangent flat and a ring groove to receive a matching cross pin of the intermediate bush hollow. EFFECT: improved structure. 3 cl, 6 dwg