Patent ID: 8286809

Claim:
A self-expanding foldable structure for a display, comprising a back wall; a pair of side walls having connection edges hingedly joined to opposite edges of said back wall, said side walls being pivotable about said connection edges between a flat position, in which the back and side walls are substantially coplanar, and an expanded position, in which the back and side walls form respective dihedrons with one another configuring a display rack; at least one transverse fold line provided in said back and side walls perpendicular to said connection edges, the back and side walls being foldable about said transverse fold line from said flat position to a compact folded position; a shelf linked to at least one of the back and side walls and configured to be arranged substantially coplanar with the back and side walls in the flat position and between the side walls forming respective dihedrons therewith in the expanded position, said shelf being supported with respect to the back and side walls in the expanded position by support means; and at least one elastic element connected to the side walls and arranged to push the structure towards the expanded position; wherein the back wall and the side walls are made of a relatively rigid material selected from a group comprising cardboard, corrugated cardboard, plastic, corrugated plastic and foam board, said relatively rigid material having opposite planar outer faces and an inner structure suitable for withstanding stresses in one or more directions parallel to said planar outer faces; and wherein said at least one transverse fold line comprises, at least in said two side walls, one or more scored sections, in which said inner structure of said relatively rigid material is crushed along the transverse fold line, in combination with one or more cut sections, in which the inner structure of the relatively rigid material is cut but not crushed along the transverse fold line and has flat edges that mutually face and support one another when the display is in the expanded position.