DOOR LOCK ARRANGEMENT Russian patent published in 2011 - IPC E05B9/00 

FIELD: construction.

SUBSTANCE: door lock arrangement for installation in a groove on a door or in a similar attachment comprises a lock body equipped with a front plate. The lock body has at least one bolt protruding from an opening in the front plate and may be fixed with screws or similar fixtures installed in screw holes of the front plate. The body may be finished with a closing plate installed on the front plate, as a result of which the door or a similar attachment also has a groove for the front plate. The rear side of the front plate, which is installed opposite to the door or a similar attachment, has ledges in locations of screw holes. If the lock body is installed without a closing plate, the front plate rests with the specified ledges in the groove of the front plate. The lock body may be equipped with a closing plate, which has screw holes corresponding to the screw holes in the front plate in order to fix a closing plate using same screws or similar fixtures. In this case the lock body is made with the possibility of its installation so that the front plate is attached to the door or a similar attachment, resting with its rear surface, which at least substantially does not depend on the specified ledges. The total thickness of the front plate and the closing plate is selected so that when they are installed together, the total thickness substantially corresponds to the depth of the specified groove for the front plate.

EFFECT: development of a door lock arrangement of a simple design, possibility of simple installation of a door lock.

3 cl, 3 dwg