LOCKING DEVICE Russian patent published in 1997 - IPC

FIELD: locks. SUBSTANCE: locking device has combination lock with an assembly of secret members, adjusting handle mounted via an axle and used for control of the secret members, bolt system, means for locking the bolt system, actuator of the bolt system provided with a handle mounted coaxially to the adjusting handle to allow the bolt system to move when a combination is true, the axle and secret members of the combination lock being not loaded, and fixed in the locked position. The housing of the combination lock is rigidly connected with the handle of the actuator of the bolt system. The shaft of the handle of the actuator of the bolt system and housing of the article define a threaded pair which, at the same time, is a rotation pair and load-carrying joint. The threaded zone of the shaft of the handle of the actuator of the bolt system is provided with a weakening groove. The neck formed can be broken down if a torque applied to the handle when the lock is locked is less than the value of the torque required for breaking the lock or its fastening member. EFFECT: enhanced reliability. 2 dwg