Patent ID: 7303116

Claim:
A foldable box comprising a plurality of rigid sides; at least one flexible sheet connecting said plurality of rigid sides to provide hinge means between each of said plurality of rigid sides, whereby said sides may be arranged to form a hollow prismatic configuration having an open top and bottom or may be arranged in superimposition to form a flat configuration, and top and bottom covers for closing said open top and bottom when said sides are arranged to form the prismatic configuration, each of said covers comprising an outer part of slightly larger dimension than the associated opening and an inner part sized to fit within the associated opening when the cover closes said opening; characterized in that said flexible sheet comprises a single layer of cardboard, fold liners on said sheet defining contiguous sheet portions, the surface of each sheet portion coinciding with the surface of a different one of said plurality of rigid sides, said flexible sheet having respective end portions, a side flap extending from one of said end portion and being connected to the other end portion of said flexible sheet to form a tubular configuration, an upper flap extending from a first sheet portion of said flexible sheet to form said top cover and a lower flap extending from a second sheet portion of said flexible sheet to form said bottom cover, respective holes provided in the sides of the box opposite said first and second sheet portion when said sides are arranged in said hollow prismatic configuration, an opening in each one of said inner parts adapted to be aligned with a respective one of the holes when said top and bottom covers close said open top and bottom, and pins adapted to extend through the hole and opening to retain said respective covers in the closed position.