| 摘要 |
PROBLEM TO BE SOLVED: To surely keep a packaging case closed even after it is repetitively opened/closed and reduce a cost by decreasing an area necessary for a blank. SOLUTION: An opening 14 extending from the upper end rim to a bottom wall 11 is provided on sidewalls 15A and 15B, closure walls 29 for closing the opening 14 are provided on both sides of a lid wall 27, ends of the closure walls 29 are placed inside the sidewalls 15A and 15B, and in addition the other ends are provided outside the sidewalls 15A and 15B through the opening 14 for covering. The lid wall 27 has an opposite front side 27b specified to be longer in full length than a rear side 27a serving as a border with an end wall 12B. The rear end of the closure wall 29 is placed inside the sidewalls 15A and 15B and the front end is placed outside the sidewalls 15A and 15B. A front end frame 32 for covering an upper outer periphery of the front end wall 12A is provided at the front end rim of the closure wall 27. COPYRIGHT: (C)2005,JPO&NCIPI
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