| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a packaging box capable of reliably maintaining a flat folded state of a body part by suppressing decrease in strength of a flap or the like. <P>SOLUTION: When a body part is folded flat by opening both long side flaps 6 provided at a body part continuously and by bending a pair of facing corner parts of the body part at an acute angle, an overlapping part 16 in which side ends of both long side flaps 6 overlaps with each other is formed. A locking part 13 is provided at a predetermined position along a side end edge of at least one long side flap 6 corresponding to the overlapping part 16, for inserting and locking the side end of the other long side flap 6 when the overlapping part 16 is formed. Both long side flaps 6 are in a locked state with each other by the locking of the locking part 13, and the flat folded state of the packaging box is maintained. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
