ELECTROMECHANICAL LOCK Russian patent published in 2005 - IPC

FIELD: locks, particularly to provide automated maintenance staff passage in restricted access room.

SUBSTANCE: lock has body, blocker control means installed in lock body so that control means may perform reciprocal movement in direction perpendicular to cross-bar movement. Blocker control means are made as electromagnet with limb interlocking with blocker. Lock has means to provide lock opening without electric signal including button, pressure and lever mechanisms. Button mechanism is made as two cases with spring-loaded buttons. Movement of spring-loaded button arranged on outer door side is limited by cylinder mechanism provided with hook. Pressure mechanism is made as case and spring-loaded rod. Lever mechanism includes two levers arranged symmetrically to central lock axis and cooperating with buttons of button mechanism from one side thereof and with pressure mechanism case from another side thereof, wherein pressure mechanism may be engaged with blocker to release cross-bar. Spring-loaded rod contacts with electrical switch inserted in lock and indicates that cross-bar is installed in blocked or unblocked position. Built in lock is electrical signaling means indicating opened or closed position of door. Signaling means are formed as tab having guiding member contacting with blocker and spring-loaded rod closing electric contact of end switch.

EFFECT: increased reliability, possibility of two operational modes, possibility of manual door opening, provision of opened door position or unlocked lock position indication.

4 cl, 2 dwg