SPECIAL LOCK FOR REINFORCED DOOR WINGS Russian patent published in 1998 - IPC

FIELD: special lock for reinforced wings, for instance, metal doors. SUBSTANCE: the lock has additional levels of protection, simple in handling a has a body, stoppage mechanism, for instance, cylinder mechanism, and a locking device with a locking bolt, its drive from the lug of the working handle axle and a retainer. The working handle axle is movable in axial direction relative to the locking bolt drive linked with it and an annular groove, which accommodates a detent, the locking surfaces on the two sides of the detent have annular grooves, the detent bearing mechanism, and the locking bolt drive is furnished with a coder made in the form of combination of angular dimensions of the cylinder mechanism cam enclosure and working handle axle lug. EFFECT: simplified handling. 9 cl, 3 dwg