| 摘要 |
PROBLEM TO BE SOLVED: To provide a packing box which can flexibly cope with problems regarding carrying load resistance which could happen right before the starting of the mass-production of an electric product as the first time, and can increase the carrying load resistance without using a reinforcing member which is separately manufactured only when required. SOLUTION: A lid plate section 20 of a box body 10 having a bottom is formed of two sheets of internal flaps 21 and 22 and two sheets of external flaps 23 and 24. On the internal flaps 21 and 22, a supporting piece 60 which is arranged at the central section in the depth direction D on both end sections in the lateral width direction W of the box body 10, and is inserted between the lid plate section 20 and a bottom plate section 30 is installed. The supporting piece 60 is partitioned and formed on the internal flaps 21 and 22 by forming a cut line 70 on the internal flaps 21 and 22. On one end section in the height direction of the supporting piece 60, a section 74 without the cut line is installed, and the supporting piece 60 is bendably connected with the internal flaps 21 and 22 through the section 74 without the cut line. COPYRIGHT: (C)2008,JPO&INPIT
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