METHOD FOR IDENTIFICATION OF LOCK KEY BY DECODER AND LEVER LOCK BASED ON IT Russian patent published in 2021 - IPC E05B25/02 E05B15/14 E05G1/04 

FIELD: locking devices.

SUBSTANCE: inventions relate to locking devices and can be used in door locks, safe locks to protect against unauthorized opening. The method for identifying the key of the lever lock is that when the key is turned in the keyhole, the levers are arranged in order and at heights, opening the entrance to the decoder plate into the grooves of the lever, allowing the decoder to turn on the axis and unlock the lock bolt. The method is implemented in a lever lock containing a decoder bolt locking device that prevents the lock from opening with master keys and self-dialing keys, simulating odd and even half-turns of the lock key. To avoid breaking the lock by reading the code between the locks, the heights of the code projections of the levers forming a passageway for the bolt stand can be reduced from one or the other side or simultaneously from both sides by one or more minimum values of the secret heights of the key bars, while the passageway for the rack is larger than it is minimally necessary. The length of the working surface and the number of locking teeth of the bolt interacting with the decoder can be reduced by half and allow only one full turn of the key.

EFFECT: proposed is new solution for a reliable locking device.

7 cl, 12 dwg