LOCK WITH PRESSURE KEY Russian patent published in 2007 - IPC E05B35/04 

FIELD: ironmongery, particularly bar-type locks with pressure keys.

SUBSTANCE: lock comprises body with spring-loaded bar sliding in longitudinal direction. The bar is provided with inclined depressions. The lock also has pressure key made as rod with bit provided with inclined projections formed so that projections may be inserted in depressions of spring-loaded bar. The key bit is fastened to key rod and spaced apart therefrom. The body has through orifice to receive key rod with key bit from outer lock side so that the key rod with key bit extend with respect to the body from inner side thereof. Blind hole is made from inner body side to receive key bit. The blind hole is communicated with inclined bar orifices. The second spring-loaded bar sliding in longitudinal direction is installed in the body. The second spring-loaded bar also has inclined depressions. The key has the second bit with inclined projections to be inserted in depressions of the second bar. The second key bit is connected to key rod and spaced apart therefrom. Blind hole to receive the second key bit is created from inner body side. Both blind holes are diametrical with respect to through orifice axis having shape mating that of cross-section defined in key rod with bits.

EFFECT: increased secrecy and reliability of the lock.

3 dwg