LOCK MECHANISM Russian patent published in 1994 - IPC

FIELD: locking devices for doors and safes. SUBSTANCE: lock mechanism has flat key with hole, casing for key hole secured to lock body and end section of carrier controlling special part and mechanism base. The latter has a pair of sockets with pairs of spring-loaded pins and balls of equal diameter located in each socket. Socket for pair of ball and pin of large total length coincides with key hole. Each cylindrical pin has neck in its middle part. Neck length corresponds to carrier thickness. Carrier has motion drive and a slot whose width equals diameter of cylindrical pin neck and a pair of holes similar in shape and mutual positioning with those of mechanism base sockets. Base is separated in two blocks tp provide location of carrier end section between them and location of cylindrical pin necks in carrier slot. Keyhole on the side of balls is made in form of seat in cross section. EFFECT: higher efficiency. 2 cl, 5 dwg