Patent ID: 6840436

Claim:
A folding collapsible box comprising: a box body, said box body having a rectangular flexible bottom wall, two first hard upright sidewalls and two second hard upright sidewalls perpendicularly upwardly extended from the four sides of said rectangular flexible bottom wall, and a top open side, said first hard upright sidewalls each having a vertical folding line on the middle and a plurality of through holes symmetrically spaced from said vertical folding line at two sides; two locating members respectively attached to said first hard upright sidewalls of said box body to support said first hard upright sidewalls in shape, said locating members each comprising a clamping gap, which receives one of said first hard upright sidewalls, and two symmetrical pairs of downwardly extended extension arms respectively attached to the corresponding first hard upright sidewall at two sides, said extension arms each having a longitudinal sliding slot; and fastening devices respectively mounted in the longitudinal sliding slots of said extension arms of said locating members and the through holes of said first hard upright sidewalls of said box body to secure said locating members to said first hard upright sidewalls, enabling said locating members to be moved vertically relative to said first hard upright sidewalls within a limited distance equal to the length of the sliding slots of said extension arms.