Abstract: An automatic product advance mechanism for dispensing merchandise on vending machines shelves is presented. A combination of electronic and mechanical components enables the disclosed system to automatically adjust for dispensing different product packaging formats and dimensions. Protected by a front clear gate-shield the products are loaded on an upright position on top of a base-rack, escorted by interchangeable column dividers and supported by a sliding carrier back-sled. The system operates by energizing a gear motor pivot ably connected to a crank-slider mechanism driving eccentrically a ratcheting pawl assembly that pushes the carrier back-sled towards the front end of said base-rack and simultaneously opens the clear gate-shield until the first product loaded to the furthermost position is dispensed.

Abstract: An automatic product advance mechanism for dispensing merchandise on vending machines shelves is presented. A combination of electronic and mechanical components enables the disclosed system to automatically adjust for dispensing different product packaging formats and dimensions. Protected by a front clear gate-shield the products are loaded on an upright position on top of a base-rack, escorted by interchangeable column dividers and supported by a sliding carrier back-sled. The system operates by energizing a gear motor pivot ably connected to a crank-slider mechanism driving eccentrically a ratcheting pawl assembly that pushes the carrier back-sled towards the front end of said base-rack and simultaneously opens the clear gate-shield until the first product loaded to the furthermost position is dispensed.

Abstract: A mechanism for dispensing merchandise using a support cart that slides forward on a fixed base activated by a circular cam that applies a 360° rotating motion inside a open oval shaped unit connected to a center actuator ratchet. After a grip is effected on one of the notches of the said center actuator ratchet by the latches located on the said merchandise support cart then the engagement pushes forward and drops from the base only the first object stacked to the furthermost position of the base. Comprising of a fixed base, two fixed ratchets, a sliding merchandise support cart with three latches, one center actuator ratchet connected to a open oval shaped unit, a circular cam with various holes positions to mount an axis where said each hole position determines the distance for the said support cart to move.