DOOR RIM LOCK Russian patent published in 2000 - IPC

FIELD: door rim locks. SUBSTANCE: door rim lock has a body, combination mechanism having handle for inside opening of lock and accommodated in body bolt crossbars kinematically connected with turning unit of combination mechanism by means of rack-and-gear drive which transforms turning of key or handle into rectilinear motion of cross-bars. In this case, one of cross-bars has teeth and it fulfils role of rack of rack-and-gear drive and serves as leading crossbar. All cross-bars are interconnected with one another by rod located in radial holes of all cross-bars and used as stop limiting motion of cross-bars of bolt in locking. Used as stop in unlocking is pin additionally introduced and installed in radial hole of leading cross-bar. Pin and rod are parallel and gear is found between them. EFFECT: higher strength and more adaptable to manufacture. 3 cl, 5 dwg