DOOR LOCK Russian patent published in 1995 - IPC

FIELD: locking devices production. SUBSTANCE: used mainly for steel doors door lock has cylindrical mechanism, mounted in lock body with capability to be engaged with bolt motion joint, using locking joint, fixed on butt of cylindrical mechanism, that is opposite to butt with key hole, and joint of bolt motion blocking. In the case joint of door lock locking, made in the form of locking washer mounted in one of two grooves, formed in the butt of cylindrical mechanism with capability of joint limited turn and fixed reciprocating relocation with cylinder of cylindrical mechanism into its another groove, engaged with fixer with bulge, mounted on butt of cylindrical mechanism, that is opposite to butt with key hole. Bolt motion joint is made in the form of lock handle rod and coaxially mounted on axis of the rod guiding, protecting and turning washers. Guiding washer is mounted in lock body stationary, protecting washer is mounted between guiding and turning washers with capability of free turning. Turning washer is mounted with capability of limited turning and is provided with pins to be engaged with bolt. Turning washer has groove facing fixer to be engaged with its bulge. Axis of cylindrical mechanism is set in parallel to plane of door. Bolt motion blocking joint is made as member of rod form, that is mounted in lock body to exercise blocking of turning washer turn. EFFECT: increased reliability of door lock blocking. 6 dwg