BLOCKING MECHANISM OF CODE LOCK Russian patent published in 1996 - IPC

FIELD: mechanical engineering. SUBSTANCE: blocking mechanism has housing inside which control heads and code discs are located on axes. Discs have shut-off members. Mechanism comprises member in the form of stepped roller having on the face end an engagement member for interacting with shut-off device of lock. Number of code discs on each axis exceeds unity and distance between them along the axis exceeds thickness of roller step. EFFECT: enhanced reliability. 2 dwg