| 摘要 |
PROBLEM TO BE SOLVED: To provide a molding die and an injection molding method for a bead member which can smoothly take out from the molding die the bead member having an injection-molded, unvulcanized bead filler. SOLUTION: The molding die is equipped with the lower die 7 in which there is formed the annular concave groove 9 into which the annular bead core 1a is arranged and the unvulcanized rubber composition for forming the bead filler 1b is supplied and the upper die 8 capable of opening and closing to the lower die 7. The molding die is so constructed that the core mold part 17 composing the lower die 7 in the vicinity of the bead core 1a can separate to the mold release direction C from other mold parts 15, 16 while supporting the bead core 1a. COPYRIGHT: (C)2008,JPO&INPIT |
