Multi-compartment storage structure

Claim 1

A low-cost multi-compartment storage structure comprising identical molded plastic front and rear frames exposed on the outside of the structure and an inverted U-shaped said and top wall panel of corrugated paper board, the front and rear edges of which are secured respectively to the top and sides of the frames, each of the frames comprising: an integral plastic open rectangle having in the inner face of its top and side elements a panel-receiving channel into which the edges of the U-shaped panel are received, a plurality of vertically spaced horizontal cross pieces extending across the opening and integral with the side elements, the cross pieces each having a downward step along its top adjacent its inward edge, the outward face of the frame formed with an outward rib extending on all elements of the rectangle and spaced outward from edges of the elements adjacent the inside of the rectangle; a plurality of identical substantially rectangular shelves of sheet material, each having opposite sides respectively resting in the downward step of horizontally-aligned cross pieces of the two frames; and a rear facing panel of sheet material secured against the outward face of one of the frames and having its margins extending respectively to just short of the ribs on the said frame.