LOCK WITH VARIABLE CODE Russian patent published in 2012 - IPC E05B27/10 

FIELD: construction.

SUBSTANCE: body and a drum are equipped with pins arranged coaxially around the circumference along the axis to form a locking mechanism. Stepped eccentric holes are made in the body for pins. The drum is installed in the body with the possibility of rotation around its axis. The grip is rigidly installed in the body. Cuts are made both in the grip and the drum for a locked element. Each pin consists of at least three parts: one stepped part interacting with a key is made as composite, with the possibility of fixed variation of length, the second and the last one are also composite of bushings and rods that accordingly interact with each other. Between each bushing of the second part of the pin and the stepped rod there are springs installed. Stepped rods of the last part of the pin are spring-loaded. The key is equipped with detachable elements of various length with throughput axial holes. The bushings of the last part are made with different length at all pins, and between the large diameter of the stepped rod in the last part of the pin and the bushing of the last part of the pin there is a ring installed.

EFFECT: invention makes it possible to vary the code on the key and reduces the possibility of controlled displacement of rods in case of criminal action.

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