LOCK Russian patent published in 2003 - IPC

FIELD: hardware. SUBSTANCE: lock has body, locking bolt, means stopping it, coder. Body closed on face side and fitted with blind recess on side of closed door leaf has paired holes arranged at right angle and slotted groove in its lower butt which form labyrinth key hole in combination. Locking bolt has annular groove, is fitted with two stopping means moved towards sides of body and matched with mechanisms for their movement. One stopping means includes spring-loaded slider with threaded tail part which moves in hole of body, second stopping means comprises nut and screw with polyhedral head fixed in hole of body. Key is body of revolution having rounded head with polyhedral recess and threaded hole. Coder carries mark put on polyhedral head of finger of mechanism fixing stopping means and radial marks put on body. EFFECT: enhanced trickiness and resistance to breaking. 9 dwg