Abstract: The cash box of a vending machine is protected by a heavy steel door or pair of doors which are locked across the front of the juke box covering the cash box, the door or doors being mounted on a framework consisting of steel straps which wrap around the back, and preferably the top and bottom as well, of the vending machine and interlock in such a way that they can be installed without screws, bolts or other fastening structure and will positively be locked into place when the barrier door or doors are closed. This configuration eliminates the need to mount a barrier door onto the vending machine, which is somewhat time consuming and tricky due to the strength of the mounting that is required.

Abstract: A security cover is provided for the lock boxes of vending machine doors and the like wherein a bracket is mounted around the keyway and a closure is hinged to the bracket such that it will swing shut defining an enclosure and can be locked in this closed position with a lock that is accessible only from within the enclosure, there being an opening in the enclosure, preferably through the closure member, permitting access to this locking means to free the closure, thereby providing access to the door lock.