Patent ID: 8061584

Claim:
A storage box comprising: a first member, a second member, and a pair of third members formed separately, and joined together by fasteners to assemble a main body portion; the first member includes a first longitudinal plate portion, a first long bottom plate portion, and a lower lid portion; the second member includes a second longitudinal plate portion, a second long bottom plate portion, and an upper lid portion; and each third member includes a short longitudinal plate portion, a short bottom plate portion, and a flap portion; wherein the main body portion may be folded into a collapsible state from an operational state without removal of the fasteners; the pair of long longitudinal plate portions being respectively formed with first valley-folding portions which extend in an upper and lower direction and which are formed to fold the long longitudinal plate portions inwardly, the long bottom plate portions continued from the long longitudinal plate portions being formed with mountain-folding portions so that the mountain-folding portions are located on extended lines of the first valley-folding portions, the mountain-folding portions being formed to fold the long bottom plate portions inwardly, the lid portions continued from the long longitudinal portions being formed with second valley-folding portions so that the second valley-folding portions are located on the extended lines of the first valley-folding portions, the second valley-folding portions being formed to fold the lid portions inwardly, wherein the long bottom plate portions continued from the long longitudinal plate portions are fixed to the short bottom plate portions continued from the short longitudinal plate portions, respectively, and a slit is formed in each long bottom plate portion extending from the long longitudinal plate portion so as to extend from a boundary between the first valley-folding portion and the mountain-folding portion, wherein the main body portion being able to be folded by raising or folding down the lid portions while raising the long bottom plate portions upward and by folding the first valley-folding portions, the mountain-folding portions and the second valley-folding portions.