| 摘要 |
PURPOSE:To enhance productivity by reducing man-hours by a method wherein a skin material is softened in a pre-shaped state by the heat of a molten resin and pressed to a molding surface at the time of injection compression molding to be shaped. CONSTITUTION:A skin material 1 consisting of a polyvinyl chloride skin layer 10 and a polypropylene foam layer 11 is arranged in the first mold 2 and pre- shaped by clamping the first and second molds 2, 3. Thereafter, the third mold 4 is allowed to approach the molds 2, 3 to inject a predetermined amount of a molten polypropylene resin 6 from the nozzle 5 of an injection molding machine. The third mold 4, the first mold 2 and the second mold 3 are subsequently driven so as to further approach each other and the molten resin is compressed to be subjected to compression molding. By this method, pressure and heat act on the skin material to perfectly shape the skin material along a molding surface. This molded product has an almost bow-shape cross section and the terminal parts 12, 13 of the skin material 1 are involved inside. |
