| 摘要 |
PROBLEM TO BE SOLVED: To provide a corrugated board cushioning material transportable without damaging, even if there is no sufficient plane part in a packing article.SOLUTION: A bottom plate 11, side plates 12, 12A and 14 and top plates 13 and 13A are linked, and a center-folding plate 15 is linked to one side plate 12A, and a push-thrust piece 16 is projected on the center-folding plate 15, and an inverse-folding piece 17 is provided on the bottom plate 11 by a notch. A cylindrical body 1 is formed by bending so as to roll in the bottom plate 11, the side plates 12, 12A and 14 and the top plates 13 and 13A, and the center-folding plate 15 is bent toward the other side plate 14, and the inverse-folding piece 17 is pushed out of the reverse surface side by the push-thrust piece 16, and the push-thrust piece 16 is projected from an extraction hole of the inverse-folding piece 17, so that the edge of the push-thrust piece 16 abuts on a reverse surface of the inverse-folding piece 17, and a column 2 for restraining rocking of the inverse-folding piece 17 is formed so that a surface of the inverse-folding piece 17 of the column 2 becomes an abutting surface of an article.SELECTED DRAWING: Figure 4 |
