DOOR LOCK Russian patent published in 2012 - IPC E05B47/00 

FIELD: construction, road engineering.

SUBSTANCE: door lock comprises a body equipped with a front plate, locking facilities, an electric actuator mechanism and a mechanical control device to control locking facilities. The lock body comprises a double-action bolt, which may be displaced by means of reciprocal linear movement between the open position and the locked position, when it protrudes from the lock body through a hole in the front plate. The bolt is spring-loaded in direction of the protrusion position. Locking facilities may be moved into the locking position, in which they prevent displacement of double-action bolt from the protruding position to the open position in the lock body. Locking facilities comprise a locking part to ensure and cease locking of locking facilities in the locked position. The locking part as capable of rotation rests against the lock body and comprises a mechanical control part and at least one electric control part. The mechanical control part is functionally connected to a mechanical control facility, and the electric control part is functionally connected to the electric actuator mechanism. The locking part is arranged so that when mechanical control is applied, the locking part is turned relative to the lock body without resistance from the energised electric actuator mechanism functionally connected to the electric control part.

EFFECT: invention provides for rotation of a locking part relative to the lock body without resistance from the side of the energised electric actuator mechanism, when mechanical control is used.

14 cl, 9 dwg