| 摘要 |
PROBLEM TO BE SOLVED: To provide an original board in which burrs are restrained from being left on product boards when the product boards are cut out from the original board by breaking perforate cutting lines between a waste board and the product boards. SOLUTION: The original board 5 has a configuration in which the product boards 3 cut out from the original board 5 by breaking perforate cutting lines 17 are connected to the waste board 7, through the intermediary of the perforate cutting lines 17. Interconnections 11 which interconnect the product boards 3 and the waste board 7 together are each formed into a curvature 13 which spreads wide from the perforate cutting line 17 toward the waste board 7 side. COPYRIGHT: (C)2008,JPO&INPIT
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