Electronic cam locking systems for vending machines and the like

摘要

An electronic locking system for vending machines or the like is provided for locking and unlocking the machine preferably with a remotely controlled electronic cam operating device. The lock system includes at least one axially and also preferably rotationally movable cam that can be mounted selectively on the cabinet or in the body of the machine and at least one slotted receiving device disposed either on the door or within the interior of the machine and positioned for engagement by the cam when the door is moved between an open position, an intermediate and closed position. When the door is manually moved from the open position to the intermediate closed position, the cam advances into the receiver slot and moves to draw in the door. The cam movement pulls the door into the closed position wherein a gasket disposed between the door and the vending machine is substantially uniformly compressed and sealed around its periphery. In one form a support is provided at the outboard end of the cam for added resistance against prying. The locking device may also be provided with a remote control unit which provides instructions to the electronic circuitry of the locking mechanism.

主权项

1. A locking system for a door movable between open and closed positions relative to a stationary body, comprising: a cam shaft, having a longitudinal axis and a shaped end, the cam shaft being carried by a first one of the door and the stationary body, the cam shaft being rotatable about its longitudinal axis and, independent of such rotation, also being translatable along the same axis relative to the first one of the door and the stationary body; a receiver, carried by a second one of the door and the stationary body, the receiver being adapted to be engaged by the shaped end of the cam shaft; and a motor configured to lock the door to the stationary body by (1) extending the cam shaft axially into the receiver without rotational motion of the cam shaft, thus interferingly engaging the shaped end of the cam shaft with the receiver, (2) rotating the cam shaft without axial movement of the cam shaft, thus drawing the closed door and the stationary body together, the motor being further configured to unlock the door from the stationary body by (1) rotating the cam shaft without axial movement thereof, thus releasing the closed door from the stationary body, and (2) axially withdrawing the cam shaft toward the first one of the door and the stationary body to disengage the shaped end of the cam shaft from the receiver.