Bridgestone Corporation

Hirokazu Haraguchi

Taichi Itabashi

Masanori Okumura

Masakazu Igarashi

A mold for foam molding which can sufficiently prevent burrs from being formed on a molded product, and a foam molding method using the mold are provided. A grooveinto which a packing seal is to be fitted is formed in a mating surfaceof a lower moldso as to extend around a cavity. The groovehas a deep groove portionwhich is deeply recessed from the mating surface, and a shallow groove portionwhich is located on the cavityside with respect to the deep groove portionand which continues to the deep groove portion. A portion of the mating surfacethat extends from its edge on the cavityside down to the groove 6 has a width 'a' of from 0.1 mm to 10 mm. A packing sealhas a base portionwhich is inserted into the deep groove portion, and an overhang portionwhich continues to the base portionand is engaged with the shallow groove portion

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Yokohama, Japan

Hirokazu Haraguchi