| 摘要 |
PROBLEM TO BE SOLVED: To provide a corrugated cardboard case capable of reliably being closed when packing vegetables having different sizes therein by means of a lid piece that bulges in a formed heap shape.SOLUTION: A corrugated cardboard case 200 is folded up in a box shape from one sheet of corrugated cardboard 100, and is closed by engaging a pair of bilaterally symmetric side lid pieces 11, 13 and a pair of bilaterally symmetric end lid pieces 12, 14 with each other, which pairs are provided continuous to sidewalls 31, 33 and end walls 32, 34. The side lid pieces 11, 13 include folding lines G in a longitudinal direction at central parts thereof and engagement pieces 7 having jaw parts 73 at both ends. The end lid pieces 12, 14 include folding lines K2 curved upward, and two cutout holes 5A having guides 62 into which the engagement pieces 7 are inserted from above and to which the jaw parts 73 are engaged. Further, a folding line P is provided obliquely from the jaw part 73 of the engagement piece 7. Both ends of the folding lines G of the side lid pieces 11, 13 are formed so as to be recessed inward. |
