| 摘要 |
PROBLEM TO BE SOLVED: To provide a manufacturing method of a window part in in-mold molding capable of forming the window part to a molded product simultaneously with in-mold molding of closing an injection mold after a synthetic resin sheet is mounted in the injection mold to injection-mold a molten resin, and the structure of the injection mold. SOLUTION: In this in-mold molding, a recessed part 10, where the thickness of the synthetic resin sheet 2 becomes 0.02-0.15 mm, is provided to the peripheral edge 9 of the window part 6 of the synthetic resin sheet 2 and the mold 3 is subsequently opened to take out the molded product 5 before the synthetic resin sheet 2 of the window part 6 is removed. As the part of the injection mold 3 for providing the recessed part 10, where the thickness of the synthetic resin sheet 2 becomes 0.02-0.15 mm, to the peripheral edge 9 of the window part 6 of the synthetic resin sheet 2, a blade mold 12 having a flat surface 11 at its leading end is used. COPYRIGHT: (C)2006,JPO&NCIPI
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