| 摘要 |
PROBLEM TO BE SOLVED: To attain an assembled box of which disassembling is easy. SOLUTION: This paper box is constructed such that side wall flaps 2 constituting a side wall are cooperatively arranged at each of the sides of a polygonal-shaped bottom plate 1, some inner wall flaps 6 folded back inwardly are cooperatively arranged at a certain or all the side wall flaps, edges of the inner wall flaps 6 are formed with engagement protrusions 9 and the engagement protrusions 9 are engaged with some engagement slits. The side wall flaps 2 having the inner wall flaps 6 cooperatively arranged therein are provided with some finger insertion holes or opening planned segments 12, some fingers are inserted into the holes to push against the inner wall flaps 6.
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