Patent ID: 7172717

Claim:
An in-mold foam molding method for molding a core employing an in-mold foam molding apparatus comprising a core mold and a cavity mold devoid of air orifices at least in those molding sections for molding prominent areas of the outside face of a molded article; and fixed partitioning members of comb configuration having a plurality of teeth for preventing passage of bead starting materials, a proximal end of said teeth being fixed to a surface of a side of a mold chamber of the core mold or cavity mold with said teeth arranged along the mold parting direction, said method comprising the steps of: filling adjacent partitioned mold chambers partitioned by means of said fixed partitioning members with bead starting materials of different properties; supplying steam to the mold cavity to heat and fuse the bead starting materials; releasing molded articles from molds by pulling out the teeth of said fixed partitioning members; and forming a plurality of through-holes and wells extending in the mold parting direction at locations corresponding to those of the teeth.