초록 ▼

A lock includes a face plate into which a lock cylinder is mounted. Extending from the rear side of the face plate is a frame for supporting the back of the lock cylinder. A cover plate covers the front of the lock cylinder and includes one or more arms extending through the face plate to the back t

A lock includes a face plate into which a lock cylinder is mounted. Extending from the rear side of the face plate is a frame for supporting the back of the lock cylinder. A cover plate covers the front of the lock cylinder and includes one or more arms extending through the face plate to the back thereof, where the arms are secured against the plate. By this arrangement, the cover plate is secured to the back of the face plate, preventing removal of the lock cylinder by prying. The frame secures the lock cylinder to the rear, preventing it from being dislodged by hammer blows. Against all such attacks, the full structural integrity of the face plate serves to keep the lock cylinder in place and the lock secure.

대표청구항 ▼

[ We claim:] [1.] A lock apparatus comprising:a lock cylinder having a front and a back;a mounting structure, the mounting structure having a front and a back, the mounting structure defining a recess that extends through an opening in the front of the mounting structure and into which the lock cyli

[ We claim:] [1.] A lock apparatus comprising:a lock cylinder having a front and a back;a mounting structure, the mounting structure having a front and a back, the mounting structure defining a recess that extends through an opening in the front of the mounting structure and into which the lock cylinder is positioned, the back of the mounting structure having a rearwardly protruding portion that covers the back of the lock cylinder, the protruding portion having at least one aperture;a lock cylinder cover received in said opening to hold the lock cylinder within said recess, the lock cylinder cover adjoining the front of the mounting structure and including at least one arm member that passes into said mounting structure towards the back thereof and extends partially through the at least one aperture in the protruding portion; anda fastener clip having two legs and an arm connecting the legs, the legs being positioned adjacent opposite sides of the protruding portion of the back of the face plate, and at least one of the legs engaging the arm member extending through the aperture in the protruding portion to secure the lock cylinder within the recess.