METHOD TO LOCK AND UNLOCK LOCK AND LOCK FOR ITS REALISATION Russian patent published in 2013 - IPC E05B25/00 

FIELD: construction.

SUBSTANCE: in the method prior to key insertion into a keyhole a crossbar drive is disconnected, after comparison of the memorised key code with the lock code, the crossbar drive is connected, if codes match, and the crossbar drive is not connected, if codes do not match. In the device the end of the cylinder facing towards the crossbar drive is made in the form of a splint or a multi-face shaft, the crossbar drive installed coaxially with the cylinder as capable of free rotation, at the end facing towards the cylinder comprises a splint or a multi-face shaft, which matches in the cross section with the shaft on the end of the cylinder, at the end of the fixator of codes matching facing towards the crossbar drive there is a leash with a fork entering into the circular bore of the coupling arranged on the splint or multi-face shaft of the crossbar drive as capable of longitudinal displacement and connection of the crossbar drive to the cylinder, if the key code matches with the lock code.

EFFECT: higher resistance of a lock to unlocking in case of criminal break-in.

2 cl, 1 dwg