Vendor with door and shelf interlock
AssigneeUMC Industries, Inc.
InventorsRobert N. Cox, Melvin G. Grober
Life of this patent
Estimating the term…
Abstract
A vendor comprising a cabinet having a front door and shelves in the cabinet for holding items to be vended, the shelves being slidable into and out of the cabinet at the front of the cabinet when the door is open, the vendor having means for locking the shelves in the cabinet unless the door is opened far enough to enable the shelves to be slid out without striking the door, and means for locking the door in open position when any shelf is in an extended position at least within a predetermined range of extension from its position within the cabinet to prevent closing the door against a shelf.
Claims10
In a vendor comprising a cabinet having a front door, a plurality of shelves in the cabinet for holding items to be vended, each shelf being mounted for sliding movement in rear-to-front direction for being slid out from a vending position within the cabinet to a loading position extending forward from the cabinet when the door is opened, and means for dispensing items from the shelves:
- means for locking the shelves in said vending position within the cabinet comprising latch means movable between a position for latching the shelves in said vending position and a retracted position freeing the shelves to be pulled out, holding means on each shelf engageable by the latch means when the shelf is pulled out to any extended position within a predetermined range of extension from its vending position for holding the latch means in retracted position, means for locking the door in an open position wherein the door is open to the extent of enabling the shelves to be slid out without striking the door comprising latch means movable between a position for latching the door in its said open position and a door unlatching position, said shelf latch means and said door latch means being so interconnected for movement one with the other that the shelf latch means must move out of its said retracted position toward its shelf latching position for the door latch means to move to its door unlatching position, said door latch means thereby being held in its door latching position by engagement of the shelf latch means with said holding means on any shelf which is in said extended position whereby the door is latched in its open position and thereby prevented from being closed and striking said shelf.
Dependencies are inferred from the claim text.