SECRECY MECHANISM FOR HIGH-RELIABILITY LOCK WITH INCREASED RESISTANCE TO BREAKING-IN Russian patent published in 2005 - IPC

FIELD: locks, particularly for operating or controlling locks or other fastening devices by electric or magnetic means.

SUBSTANCE: secrecy mechanism comprises case with key groove. Spring-loaded blocker, shaft with arm and tang for lock mechanism operation and key with constant magnets are arranged in the case. Spring-loaded blocker has matrix with blind holes adapted for arranging blocking members. Blocking members are made of m-metal and formed as balls or bodies of revolution with parallel or inclined generating lines. Groove for key insertion is through and located transversely to shaft axis. Shaft carries eccentric member kinematically connected to blocker. Matrixes have blind longitudinal cavities and coded channels extending from the cavities. Coded channels are provided with blocking member pushers rigidly connected to blockers. Constant magnets of the keys are coaxial with coded matrix channels and the case has spring-loaded key fixer. Keys include orifice for receiving fixer.

EFFECT: increased resistance to breaking-in.

4 dwg