Patent ID: 6848371

Claim:
A shelving structure, comprising: a) a pair of side walls movable toward and away from each other along a longitudinal axis between a collapsed position and an erected position, one of the side walls having a pair of walls bounding a space; b) a foldable shelf having opposite end regions hinged to the side walls, an upper shelf wall having a non-linear slit extending therethrough, and a lower shelf wall having a fold line about which the shelf folds during movement of the side walls to the erected position, the fold line extending transversely of the longitudinal axis, the upper shelf wall having upper projections extending in opposite directions along the longitudinal axis across and past the fold line, the projections abutting against the lower shelf wall to hold the shelf in a load-supporting state in which the shelf extends in a plane along the longitudinal axis between the side walls in the erected position; and c) a top locking flap hinged to the other of the side walls and inserted into the space for interlocking the side walls in the erected position.