| 摘要 |
PROBLEM TO BE SOLVED: To make an inner space of a square case formed by bending a corrugated board paper usable for housing different kinds of bottles in two large and small sizes. SOLUTION: A corrugated board paper comprising a circumferential cover 1, a top cover 2, a bottom cover 3 and a holding part 6 is fabricated into a bottomed square case with bending processes applied. The top cover 2 closes the square case either at a first position P1 or a second position P2 of the square case. For the fabricated square case, a first housing space 4 for a bottle is formed at the inside of the square case with the upper end opening of the square case closed with the top cover 2 at the first position P1, while a second housing space 7 for a bottle is formed at the inside of the square case with closing made at the second position P2 with the top cover 2. The upside of the top cover 2 closing the square case at the second position is held with the holding part 6 extending toward the inside of the square case.
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