LOCK CYLINDRICAL MECHANISM Russian patent published in 1994 - IPC

FIELD: locks of various designs. SUBSTANCE: mechanism has body accommodating sleeve with pack of disks spring-loaded to each other. Located between body and sleeve is cylindrical bushing. Bushing retaining unit is found in body wall. Outer side of bushing and body inner side have hollows to receive spring-loaded balls to ensure locking of lock mechanism in open position. Each of locking disks has central hole for key, and at least two of them are spring-loaded to ensure their return to zero position during unsanctioned opening. Key has code groove. Body key hole is through. Mechanism has additional key for unlocking and locking of lock from inner side. Key groove is mirror reflected relative to groove of main key. EFFECT: higher efficiency. 3 cl, 13 dwg