| 摘要 |
PROBLEM TO BE SOLVED: To provide a molding method of an injection-molded article having an under cut portion, which enables a smooth sliding operation of a slide core for forming the under cut portion and prevents generation of burrs, and to provide a molding mold used for the method. SOLUTION: In order to form a clip seat 11 and a fastening claw 12, both becoming under cut portions, in the inner surface of a back door trim 10 (injection-molded article), there is slidably arranged a first slide core 50 and there is mounted a second slide core 60 sliding along to a direction approximately perpendicular to the first slide core 50. A securing portion 61 securing to the edge margin of a flange portion 13 of the back door trim 10 is set in the tip of the second slide core 60. When the mold is opened, interference of the flange portion 13 with the first slide core 50 is circumvented by sliding the second slide core 60 and moving the flange portion 13 of the back door trim 10 in the unfolding direction. COPYRIGHT: (C)2004,JPO&NCIPI
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