| 摘要 |
PROBLEM TO BE SOLVED: To increase the strength of a molded article in a manufacturing method for a foamed resin which performs foam-molding by injecting a molten resin in a cavity 13 being formed between a movable die 12 and a fixed die 11. SOLUTION: The contour of the cavity 13 includes the die surface (the first surface 31) of the movable die 12, and the distal end surface (the second surface 32) which is provided on the distal end of a movable jig 16 being provided on the movable die 12 side. When the movable die 12 separates from the fixed die 11 after the injecting of the molten resin into the cavity 13, the first surface 31 is made to step aside together with the movable die 12, and in the meantime, the second surface 32 is not made to step aside from the movable die 12. As a result, a foamed section 41 is constituted at a section facing the first surface 31 of the cavity 13, and a non-foamed section 42 is constituted at a section facing the second surface 32. The non-foamed section 42 is made into a reinforcing section. COPYRIGHT: (C)2007,JPO&INPIT |
