| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent the deformation of a box by an external force from generating for the box which can be folded under a state wherein two peripheral walls are joined together. SOLUTION: A bottom wall 30 of this box 1 is constituted of a first bottom surface part 26, a second bottom surface part 27, a third bottom surface part 28 and a fourth bottom surface part 29. The first bottom surface part 26 and the third bottom surface part 28 are constituted of main body parts 26a, 28a, and fixing parts 26b, 28b which are connected to the main body parts 26a, 28a with folding lines 31, 32 for folding down. Respective fixing parts 26b, 28b are affixed to the lower surface sides of the second bottom surface part 27 and the fourth bottom surface part 29 with a gluing part 33. The second bottom surface part 27 which is located at a location closest to the upper surface side of the bottom wall 30, is formed into a square shape which has approx. the same shape and dimensions as the bottom wall 30, and the external edge is brought into contact with the internal surfaces of a first side surface part 5, a third side surface part 7 and a fourth side surface part 8. Thus, the deformation of the box 1 by an external force can be prevented from generating.</p> |
