| 摘要 |
PROBLEM TO BE SOLVED: To manufacture at a low cost a corrugated board box with a bottom face in which the troubles of discharge of a filled matter caused by the intrusion of the filled matter into spaces does not occur. SOLUTION: Out of four foldable flaps forming a bottom face of a corrugated board box main body 1 of rectangular parallelepiped, cutting lines 8 of given shape are cut by utilizing cutting lines 6 as base points on two flaps 4 continued to end faces and facing each other, and tongue strips 9 cut by the cutting lines 8 are formed to be foldable inwardly by the folding lines 6, and when the bottom face is formed, the tongue strip 9, a side face flap 5 and an end face 4 are folded from inside in the above order, and an adhesive tape is stuck from outside to form the bottom face.
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