Antitheft lock assembly

Abstract

With an antitheft lock assembly, the extreme anchor section projecting from the lock main body of the lock assembly is inserted into the corresponding engaging slot of an object to be protected against theft and the cylinder lock of the lock assembly is operated by a matching key to protect the object against theft when the wire rope extending from the lock main body is wound around an immovable pillar. The lock main body may not be obstructed for its operation by the desk top if the object is placed on it and the engaging slot located at a lower position of the object. In the unlocked state, the rotary hook shaft and the single anti-revolution arm axially and eccentrically extending from the lock main body,are introduced into the vertically arranged engaging slot H of the object B to be protected against theft. As the cylinder lock,A of the lock main body,is rotated by the key, the extreme anchor section,projecting from the axial core rod,of the rotary hook shaft,toward the anti-revolution arm,is turned by 90 degrees to make the lock main body unremovable from the object B through the engaging slot H to put the lock assembly into the locked state. With this arrangement, the distance g between the eccentrically located anti-revolution arm,and the outer periphery of the lock main body,can be reduced to avoid a situation where the lock main body,abuts the desk top and becomes inoperable.