Title: Drop shelf vending mechanism

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Abstract: A vending machine using a drop shelf trigger operated vending mechanism. The drop shelf vending mechanism employs a rack having vertically aligned drop shelves having a square shaft which is axially slidable within a square hole provided in a wall of the rack. A rounded end portion of the shelf extends beyond the square hole in one side of the rack and is adapted to be contacted by an upwardly spring biased trigger that fits around and into the shaft inwardly into registry with the squared hole in the side wall of the rack where the drop shelf drops to release the article. The trigger mechanism is operated by a trip lever contacted by conventional coin actuating mechanism which turns an operating shaft upon which the trigger is slidably mounted. The trigger is spring biased upwardly on the shaft to contact in sequence the lower most and then further drop shelves. A trigger stop on the trigger stops the trigger at each unoperated drop shelf in sequence. The spring biased member urges the trigger upwardly as each drop shelf is operated to the next drop shelf mechanism. A sold-out stop is provided at the top which is in the path of the trigger and prevents further operation to prevent movement of the operating shaft mechanism and blocks the coin receptacle to prevent further acceptance of coins in the sold-out condition.


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