DOOR LOCK Russian patent published in 2013 - IPC E05B15/00 

FIELD: construction.

SUBSTANCE: invention relates to hardware used as locking devices, in particular, to door hasp locks and bored lever mechanical locks, which may be used to lock doors of different rooms; safes, metal cabinets, etc. It is achieved by three main solutions: 1. opening of a lock takes place by initiation of an inner mechanism of a lock making a cycle of sequential actions. 2. plates of secrecy are initially removed to the side opposite from the key and are lowered/lifted not with a key, but with an inner mechanism of the lock in process of its opening 3. movement of the bolt takes place by means of an inner mechanism of the lock in process of its opening, and not with the key. Therefore the bolt is fully hidden in the lock body.

EFFECT: elimination of the possibility to break in a lock by such methods as folding and manipulation.

6 cl, 8 dwg