| 摘要 |
PROBLEM TO BE SOLVED: To solve an undercut problem on the entire periphery of a protrusion for an aperture and thereby, ensure the smooth and flawless release of a molded product during releasing an expansion-molded product integrated with a skin having an aperture. SOLUTION: The protrusion 13 for an aperture is formed jutting out of a mold surface where a skin for expansion molding with an in-mold skin is arranged. Further, as a roll-in retaining means for retaining the skin in such a state that the tip side of an inner peripheral face of a cylindrical aperture of the skin is folded outward from the aperture, a plurality of turning sheets 20 are radially arranged with the tips 20B of the turning sheets 20 left apart from each other, on the protrusion 13 of the aperture. In addition, the turning sheets 20 are pivotally attached to the protrusion 13 so that the sheets 20 can turn between the diametral direction and the axial direction of the protrusion 13. Besides, a flexible linear member 21 of an annular shape which is larger than the outer peripheral shape of the protrusion 13, is fitted to the tips 20B of the turning sheets 20. COPYRIGHT: (C)2003,JPO |
