| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent hand hook holes for pulling a corrugated fiberboard box lengthwise from being damaged. SOLUTION: A corrugated fiberboard 20 is folded to provide an elongate box form surrounded by a base plate 1, side plates 2, one of upper plates 3, the other upper plate 4 and end face plates 5. Edge auxiliary side plates 6 provided at both widthwise ends of the end face plate 5 are folded to be in contact with an internal surface of the side plate 2 and form a hand hook hole 10 on this portion. Thus the portion of the hand hook hole 10 is reinforced by the edge auxiliary side plate 6. Thus, when hands are put in the holes 10 to lengthwise pull the corrugated fiberboard box, the holes 10 are not damaged.</p> |
