To provide a foamed molded article which effectively suppresses the outward leakage of sound generated at a sound source.SOLUTION: A resin film F is arranged on a molding surface side of an undercut shaped part 18 with respect to a molding die having a support die 54 and a slide die 56 slidable to the support die 54 and configured to be capable of molding the undercut shaped part 18 of a foamed molded article which will become an undercut when the mold is removed. A foaming raw material is foamed and cured in a cavity C of a foaming mold with a boundary between the support mold 54 and the slide mold 56 covered with the resin film, so that a sound absorbing layer 20 joined with the resin film F is formed on the undercut shaped part 18 side of a foam 12.SELECTED DRAWING: Figure 5
【課題】音発生源で発生した音が外に漏れるのを効果的に抑制する。【解決手段】支持型54と当該支持型54に対してスライド可能なスライド型56とを備えて脱型時にアンダーカットとなる発泡成形品のアンダーカット形状部分18を成形可能に構成した成形型に対して、当該アンダーカット形状部分18の成形面側に樹脂フィルムFを配置する。支持型54とスライド型56との境界を当該樹脂フィルムで覆った状態で発泡原料を発泡成形型のキャビティC内で発泡硬化させ、発泡体12のアンダーカット形状部分18側に樹脂フィルムFが接合した吸音層20を形成する。【選択図】図5
FOAMED MOLDED ARTICLE, MANUFACTURING METHOD THEREOF, AND COVERED SOUND SOURCE
発泡成形品およびその製造方法と、カバー付き音源
2022-06-03
Patent
Elektronische Ressource
Japanisch
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