| 摘要 |
PROBLEM TO BE SOLVED: To surely obtain the effect of preventing the periphery of a corrugated cardboard from wounding the hand. SOLUTION: A corrugated cardboard carton is such that inner flaps 4 are extendedly provided on one pair of side plates 2, while outer flaps 5 are extendedly attached to the other pair of side plates 1, wherein the inner flaps 4 and the outer flaps 5 are glued together so as to close the end faces of the carton, and a plurality of bars of crushable creases 10 are provided on the end periphery of the outer flaps 5 forming wavelike crush sections 9. The corrugating medium of the corrugated cardboard sheet at the portion of the crushable crease 10 is intensively crushed, with liners being strongly extended, thus preventing restoration of the crush section 9, and when the hand is hooked at the end periphery of the outer flaps 5 so as to open the carton, its feel becomes soft and the effect of hardly wounding the hand is maintained. COPYRIGHT: (C)2008,JPO&INPIT
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