Three-dimensional automatic warehouse equipment

摘要

A three-dimensional storage apparatus consists of a stacker truck movable along an aisle formed between opposing sets of cantilever arms at different levels projecting from a plurality of pillars disposed on each side of the aisle. The stacker truck has a vertically movable loader upon which transfer forks are pivotally mounted for displacement between an article support position and a stowed position. With the transfer forks in the stowed position the width of the stacker truck is significantly reduced thus allowing a reduction in aisle width and an increase in storage efficiency.