| 摘要 |
PROBLEM TO BE SOLVED: To provide a packaging box handling contents with different sizes (heights) and reducing the cost of a material such as paper used.SOLUTION: This packaging box 10 whose height is changeable is provided with a bottom part insertion piece 22A on each of the right and left bottom side panels 22 and with a bottom part insertion piece inserting opening 29 for the piece 22A to be inserted on the joining part of a top panel 16 and right and left top side panels 20. A rectangular parallelepiped or cubic box body is formed by fitting the pieces 22A in the openings 29. A top part insertion piece 20A is provided on each of the panels 20 and a top part insertion piece inserting opening 22B is provided on the panels 22. By folding the outward folding line K of the top panel 16 in such a manner as the panel 16 moves upward and in a condition where the panels 22 are positioned inside of the box, the pieces 20A are fitted in the openings 22B while the panels 20 are overlapped and folded on the side panels 22 from above to increase height. |
