ELECTROMECHANICAL LOCK Russian patent published in 1998 - IPC

FIELD: locking devices. SUBSTANCE: electromechanical lock relates to protection engineering and can be used as locking device for doors in dwelling and office premises and also for locking safes and cabinets. Lock has locking span-piece connected with cylindrical mechanism and/or with handle. Also provided are limit switch and electromagnet. Armature of electromagnet is located so as to prevent movement of span-piece in opening direction. Span-piece is provided with detent which is located directly on span-piece for possible mechanical holding of electromagnet armature in closed position. Limit switch is kinematically connected with span-piece and is adapted for operation at movement of span-piece to locking direction through distance which is insufficient for electromagnet armature to break contact with detent. Span-piece is provided with pusher for possible mechanical interaction with armature of electromagnet for returning it to closed position at movement of span-piece to locking direction through distance which is sufficient for electromagnet armature to break contact with detent. Design of given lock affords high secrecy and low electric power consumption. EFFECT: higher efficiency. 2 dwg