HASP LOCK Russian patent published in 1997 - IPC

FIELD: locking devices; applicable in locking devices of flats, garages and safes. SUBSTANCE: lock has body accommodating cross-bar with locking and fixed parts, main key with cam engageable with cross-bar, combination mechanism with additional key consisting of movable and fixed parts and interlocking members in form of a set of round pins, pushing pins, balls and compression springs located in cylindrical channels. Channels in movable part of combination mechanism are made in form of two groups of cylindrical holes, and, in fixed part, in form of one group of holes coaxial to above-indicated groups of holes in movable part. Holes in each group are made staggered and distance between respective rows of groups of channels equals the length of lock cross-bar stroke. EFFECT: higher combination. 5 cl, 8 dwg