| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for manufacturing a highly efficient corrugated board cushion. SOLUTION: Since a corrugated board layer 4 between blocks 7a, 7b and a corrugated board layer 4 between blocks 7b, 7c are not pasted to a paper board 3, they can easily be removed, whereby an angle of folding to stand is approximately the right angle, and also the blocks 7a, 7b, 7c are joined without clearance. Fitting of a fitting protrusion 8 with a fitting recess 9 keeps a folded-to-stand posture of the blocks 7a, 7c, thereby efficiently manufacturing a corner pad 1.
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