| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent dust from intruding into a box by solving a gap under a sealing condition. <P>SOLUTION: In a packaging box in which respectively a pair of end face plates 1 and side face plates 2 forming a peripheral wall are included, and lid receiving flaps 4 are respectively continuously provided on the end face plates 1, and an inner lid plate 5 and an outer lid plate 6 are respectively continuously provided on one side face plate 2 and on the other side face plate 2, and the inner lid plate 5 and the outer lid plate 6 are successively overlapped on the lid receiving flap 4 to perform sealing, a folding line 7 forming a crest line of the lid receiving flap 4 and each of the end face plates 1 is inclined so that a step difference is generated through a cutting line 8 cutting into the lid receiving flap 4 from the intermediate part, to absorb the thickness of the inner lid plate 5 by the step difference. <P>COPYRIGHT: (C)2013,JPO&INPIT |
