LOCK Russian patent published in 2004 - IPC

FIELD: locksmith's work. SUBSTANCE: the lock has a body with a cover and a rotary disc, in which coaxial holes are made and freely moving locking pins, locking bolt moving mechanism are installed. The locking bolt moving mechanism includes an outer handle tightly fitted on a shaft with a shoulder, piston freely installed on the handle shaft engageable with the locking pins and the shaft shoulder, socket wrench made with holes located coaxially with the holes of the locking pins and placed in a gap formed by the end faces of the handle and body. In addition the lock is provided with an inner handle, in which slots are made and rollers are installed in them, one roller for engagement with the locking bolts, the other - for engagement with the rotary disc, also having a slot for a roller, besides, a protective washer is freely fitted on the shaft of the outer handle positioning the locking pins with respect to the socket wrench, the locking pins are made of more than two detachable parts, one of these parts is made in the form of a multidiameter shaft, the other represents a pin freely, with a guaranteed clearance, moving in a cylinder, stops fixed in the code position are positioned in the holes of the socket wrench. EFFECT: enhanced resistance to breaking-in and reliability in operation. 3 dwg