ELECTROMECHANICAL LOCK Russian patent published in 1995 - IPC

FIELD: locking device for rooms. SUBSTANCE: electromechanical lock has body with side walls and cross-bar mounted for displacement between side walls and engageable with mate slot of frame, when lock is in closed position. Manual cross-bar positioning drive has rotary arms fixed on axle, safety clutch with spring-biased retaining members, spring-biased locking rod and electromagnetic drive for moving rod with control device. Cross-bar is made in the form of round sector and mounted on arm axle for free rotation relative to axle. Safety clutch retaining members are positioned between conjugated end surfaces of cross-bar and inner arm and are spring-biased in axial direction. A portion of cross-bar, which extends from lock in its closed position, may be provided with slot engageable with mate safety member of frame. EFFECT: increased efficiency in preventing unauthorized access. 2 cl, 2 dwg