| 摘要 |
PURPOSE:To improve productivity by making a skin material, a core material and a foamed material into an integrated condition, by setting a skin material and a foamed material at a laminated state in a mold, and by injecting a molten resin into the mold from the side of the foamed material, and by pressing into the space between the skin material and the foamed material. CONSTITUTION:Between each molding surface 13, 14 of a mold 10, the laminated member of a skin material 2 and an etheric urethane foam 3 is set as being interposed. Then a thermoplastic molten resin 4a is injected into the mold 10 from the nozzle 20 of an injection molding machine, and the molten resin 4a breaks through the urethane foam 3 and collides with the skin member 2. Here the direction of injection pressure is turned to that parallel with the molding surface 14, so the molten resin 4a is pressed into the space between the skin material 2 and an urethane foam 3. The layer of the urethane foam 3 remains at a state crushed under the pressed molten resin 4a. When the molten resin 4a reaches the neighborhood of the mold 10 periphery, injection is stopped. Then as the molten resin 4a is solidified under cooling, a core material 4b is formed between the skin material 2 and an urethane foam 3. |
