COMBINED CODE LOCK Russian patent published in 1997 - IPC

FIELD: locking devices. SUBSTANCE: lock has body accommodating cross-bar with mechanism of its motion having cylindrical detents, shutter which has holes coaxial to holes in body and cylindrical detents, and possibility of motion and covering the detents, and key. Mechanism of cross-bar motion is made in form of driving disk rigidly connected with cylinder mechanism and located perpendicular with respect to the latter. Driving disk has projections for interaction with mating slots in cylindrical detents. In this case, access to code is covered at the moment of meeting of projections with cylindrical detents, and shutter may be disconnected from cylinder mechanism. Shutter is made in form of disk parallel to driving disk and having radial slot. Slot receives key, and cylinder mechanism has hole to receive key and connection of shutter with cylinder mechanism. EFFECT: higher efficiency. 4 dwg