| 摘要 |
PROBLEM TO BE SOLVED: To provide an injection-molding die which can form a plurality of undercut parts of a complicated shape inside a molded product, is compact and highly durable and of a comparatively lower price and further, suited for high productivity. SOLUTION: This injection-molded product is for forming an undercut part A inside the molded product and comprises a core 8 which is inserted into a female die and a pair of long split molds 12 which are incorporated into the core 8 and form the undercut part A inside the molded product, provided on the movable side template side. During injecting a resin, a first block 10a for supporting the tip part of the split molds 12 to be inserted into the core 8, is arranged in the core 8, and a second and a third block 10b and 10c for supporting the center and the other end part of the split mold 12 respectively, are provided on the movable side template side. Thus a load to be applied to the split mold 12 during injecting the resin is scattered. COPYRIGHT: (C)2003,JPO
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