DOOR LOCK WITHOUT KEY HOLE Russian patent published in 2000 - IPC

FIELD: locks. SUBSTANCE: the door lock without a key hole has a secret mechanism provided with a housing accommodating a spring-loaded yoke for its longitudinal movement, matrix with inserts and yoke, blocking members made in the form of balls, socket wrench with orienting magnets conjugate to the yoke end surface, and a locking member. Recesses in the inserts for the blocking balls have a size exceeding a half of their diameter and are provided with flexible members, and grooves and bosses corresponding to them are made on the yoke end surfaces around the edges. EFFECT: enhanced resistance to burglary. 5 dwg