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公开(公告)号：US11001180B2
公开(公告)日：2021-05-11
申请号：US16641075
申请日：2018-08-14
Applicant: SEKISUI PLASTICS CO., LTD.
Inventor： Atsushi Fukuta
Abstract: The present invention provides means for improving bondability between a vehicle seat core and a cushion in a vehicle seat pad formed by integration of them without significantly impairing mechanical properties. A vehicle seat core is characterized in that it is a vehicle seat core for forming a vehicle seat pad by integration with a cushion, which comprises a foamed resin molded body obtained by filling a cavity of a mold with a plurality of foamed resin particles and performing in-mold foam molding, and that at least a partial region of a surface of the foamed resin molded body to which the cushion is bonded when forming the vehicle seat pad has a surface expansion rate of 40% to 85%, and the foamed resin molded body has a first fusion rate of 95% or more or a second fusion rate of 60% or more.
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公开(公告)号：US10414309B2
公开(公告)日：2019-09-17
申请号：US16325967
申请日：2017-08-10
Applicant: SEKISUI PLASTICS CO., LTD.
Inventor： Kenta Noro , Yasuhiro Yamasaki , Yushi Sakakibara , Atsushi Fukuta
Abstract: The method manufactures a vehicular seat member including a frame member and a foamed resin molded body to embed the frame member. Firstly the frame member is placed in a molding die so that the frame member extends along the outer shape of the vehicular seat member in plan view of the vehicular seat member. Next the foamed resin molded body is formed in the molding die so that the foamed resin molded body has a rim part embedding the frame member and having an outer shape of the vehicular seat member and an extension extending inward from the rim part so as to bridge the rim part inside of the rim part. During the forming, the method forms a break in the extension so as to divide the extension along the direction intersecting the extending direction of the extension.
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