| 摘要 |
PURPOSE:To eliminate a gap, a fluctuation between a preliminarily molded piece and a base material and to improve the external appearance of a product by inserting the preliminarily molded piece into a mold for the base material to integrally mold the base material. CONSTITUTION:A preliminarily molded piece 1 is set in the recess part 6a of a cavity mold 6 in a state that the mold 6 and a core mold 7 are opened. A base material side skin material 3 is set in the mold 6, the molds 6, 7 are closed, thermoplastic resin is injected from a resin introduction hole 8 into the cavity formed between both the molds to mold a base material side core material 4. The spare molded piece 1 is increased at the extended part 1c of its rear face side to be larger in diameter than that of its front face side. When the base material is molded, the material 3 is rigidily pressed to the inner face of the cavity by the injecting pressure of the resin filled in the cavity to completely enclose the part 1c protruding from the cavity face, thereby obtaining a tightly adhering integral product. |
