LOCK FOR LOCKING AND UNLOCKING SHUTTERS Russian patent published in 1996 - IPC

FIELD: locking devices. SUBSTANCE: locking bar is easily moved under the action of a force exerted on a door to be closed or open. The locking bar is locked in the locking position by means of a dog. The position of the dog can be controlled by a mechanical key or an electromagnet. The locking bar is clamp-shaped and has two end portions. One of the end portion is a locking portion and the other is a stop portion. The locking bar can rotate about the axle fixed inside the housing and passing through the zone wherein the middle portion of the locking bar is joined to the stop portion. Being locked the locking bar as well as the hollow and projection on the jamb portion of the lock enter each other to form tightly closed shapes. EFFECT: enhanced reliability. 3 cl, 1 dwg