| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a packaging box the sealing of which is easy without reducing rigidity. <P>SOLUTION: A folding line 19 for the total height adjustment is installed on end walls 10A and 10B, and side walls 11A and 11B. A folding line 20 for folding in which extends at a tilting angle of approximately 45°is installed from both ends of the folding line 19 for the total height adjustment of respective end walls 10A and 10B. At the same time, a breaking-off section 21 is installed to the distal ends of first flaps 14A and 14B from the intersection between the folding line 20 for folding in and a border line (second folding line 18). Thus, this packaging box is constituted to be switchable between a first sealed state and a second sealed state. In this case, under the first sealed state, respective flaps 14A, 14B, 15A and 15B are folded along the border lines with respective walls 10A, 10B, 11A and 11B. Under the second sealed state, the first flaps 14A and 14B are broken along the breaking-off section 21, and at the same time, the first flaps 14A and 14B, and certain parts of the end walls 10A and 10B are folded along the folding line 19 for the total height adjustment and the folding line 20 for folding in, and the total height is lower than the first sealed state wherein the packaging box is closed by the second flaps 15A and 15B. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
