ELECTROMECHANICAL LOCK Russian patent published in 1998 - IPC

FIELD: locking devices. SUBSTANCE: electromechanical lock has span-piece, turnable disk which is linked with span-piece by means of connecting rod, limit switch and electromagnet. Armature of electromagnet is located so as to prevent rotation of turnable disk in direction of unlocking by means of stop provided on disk. Electromagnet is provided with pusher which is adapted for possible mechanical holding of armature in closed position. Turnable disk has spring-biased lever which can mechanically hold armature of electromagnet in closed position. Limit switch is kinematically linked with turnable disk by means of spring-biased lever and comes into operation at rotation of turnable disk in unlocking direction through angle which is insufficient for armature of electromagnet to go out from zone of stop of turnable disk in closed position in which armature is held by pusher of electromagnet. Installed on turnable disk is spring of trigger type which can hold turnable disk in open or closed position when it quits middle position. Design of given lock affords high secrecy and reduced electric power consumption. EFFECT: higher efficiency. 3 cl, 3 dwg