Inventory storage and dispensing mechanism

A vending arrangement for computerized vending machines, retail displays, automated retail stores, utilizes a centralized, robotic gantry associated with companion modules for vending selectable products. The modularized design enables deployment of half-sized or full-sized machines. The robotic gantry is deployed in a centralized module disposed adjacent display and inventory modules. The inventory modules can be fitted to both gantry sides, and doors can be fitted to the gantry front or rear. The gantry comprises an internal, vertically displaceable elevator utilizing a central conveyor for laterally, horizontally moving selected items from associated display and inventory positions to a vending position. The inventory modules comprise dispensing modules adjustably configurable to adjust the storage density of items to be vended. Computerized software enables the display and vending functions, and controls movement of the gantry elevator and dispenser module conveyor to dispense products from twin sides of the gantry by controlling the gantry conveyor.