| 摘要 |
PROBLEM TO BE SOLVED: To prevent a lower portion of a side face wall from protruding outwardly when the side fade wall is opened. SOLUTION: The container is formed of an upper face wall 1, the side face walls 2, 3 and a bottom face wall 4 into a box shape. An upper portion 2a of the side face wall 2 is integrally rotated with at least a part of the upper face wall 1 to be vertically opened/closed. The lower portion 2b of the side face wall 2 is rotatably coupled with the upper portion 2a and folded toward the upper portion 2a as the upper portion 2a is opened.
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