公开(公告)号：US20190176669A1

公开(公告)日：2019-06-13

申请号：US16325967

申请日：2017-08-10

Applicant: SEKISUI PLASTICS CO., LTD.

Inventor： Kenta NORO ,  Yasuhiro YAMASAKI ,  Yushi SAKAKIBARA ,  Atsushi FUKUTA

IPC: B60N2/70 ,  A47C7/18 ,  A47C7/20 ,  B29C44/12

CPC classification number: B60N2/7017 ,  A47C7/185 ,  A47C7/20 ,  B29C44/12 ,  B29L2031/30 ,  B60N2/68

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.

公开(公告)号：US20190047453A1

公开(公告)日：2019-02-14

申请号：US16076582

申请日：2017-01-26

Applicant: SEKISUI PLASTICS CO., LTD.

Inventor： Yushi SAKAKIBARA

IPC: B60N2/70 ,  A47C27/15 ,  A47C27/14 ,  A47C27/16

CPC classification number: B60N2/7017 ,  A47C7/20 ,  A47C27/148 ,  A47C27/15 ,  A47C27/16 ,  B29C44/1271 ,  B29C44/128 ,  B29C44/445 ,  B29K2023/06 ,  B29K2023/10 ,  B29K2025/04 ,  B29K2105/04 ,  B29L2031/58 ,  B29L2031/771 ,  B60N2/90

Abstract: A method for producing a vehicle seat member (30) in which a frame member (20) having protrusions (23, 25) is integrally molded to a foamed resin molded body (10) with high dimensional accuracy is provided. The method comprises an in-mold foam molding step of placing the frame member (20) in a mold (100), packing prefoamed resin particles, and molding the foamed resin molded body (10) by in-mold foam molding; and a demolding step of removing the mold (100) to obtain the vehicle seat member (30), wherein in the in-mold foam molding step, the foamed resin molded body (10) is molded so that (B−A)/B is 13/1000 or less, wherein A is an outer dimension of the foamed resin molded body (10) in the vehicle seat member (30) obtained by the demolding step and B is an inner dimension of the mold (100) corresponding to the outer dimension.

公开(公告)号：US20190217759A1

公开(公告)日：2019-07-18

申请号：US16324371

申请日：2017-08-09

Applicant: SEKISUI PLASTICS CO., LTD.

Inventor： Yushi SAKAKIBARA

IPC: B60N2/70 ,  B60N2/68 ,  B29C44/12

Abstract: Provided is a method for suppressing deformation by contraction after molding of a vehicle seat member comprising a foamed resin molded body embedding a frame member. The method manufactures a vehicle seat member (1) including a foamed resin molded body (100) and a frame member (200) at least a part of which is embedded therein in which the frame member (200) includes frameworks (250), (260) extending inside the foamed resin molded body (100) along an outer shape (400) of the vehicle seat member (1) in plan view. The method comprises forming gaps (101), (101), (102), (102) along an extending direction of the frameworks (250), (260) between at least a part of the frameworks (250), (260) and a part of the foamed resin molded body (100) located on an outer side of the at least a part of the frameworks (250), (260).

公开(公告)号：US20180345545A1

公开(公告)日：2018-12-06

申请号：US15780895

申请日：2016-11-28

Applicant: SEKISUI PLASTICS CO., LTD.

Inventor： Yushi SAKAKIBARA

IPC: B29C44/12 ,  B60N2/015 ,  B60N2/70

CPC classification number: B60N2/015 ,  B60N2/90

Abstract: Provided are a vehicle seat member in which even when a foamed resin molded body forming the vehicle seat member shrinks after being demolded, influence of the shrinkage behavior on a frame member embedded in the foamed resin molded body can be prevented, and thus a change in the position of a protrusion, which serves as a part to be anchored to a vehicle body, of the frame member can be prevented, whereby the vehicle seat member can be attached to the vehicle body side easily and reliably, and a vehicle seat including such a vehicle seat member. A vehicle seat member includes a foamed resin molded body and a frame member integrally formed therewith, the frame member including a body portion embedded in the foamed resin molded body and protrusions each protruding from the body portion and having a tip end protruding outward from the foamed resin molded body.

公开(公告)号：US20170002163A1

公开(公告)日：2017-01-05

申请号：US15113227

申请日：2015-03-10

Applicant: SEKISUI PLASTICS CO., LTD.

Inventor： Shingo TERASAKI ,  Yushi SAKAKIBARA

IPC: C08J9/00 ,  C08J9/228 ,  C08J9/14 ,  C08J9/18

CPC classification number: C08J9/0061 ,  C08F255/02 ,  C08J9/0023 ,  C08J9/0028 ,  C08J9/0066 ,  C08J9/0095 ,  C08J9/141 ,  C08J9/18 ,  C08J9/228 ,  C08J9/232 ,  C08J2201/034 ,  C08J2203/14 ,  C08J2203/182 ,  C08J2325/06 ,  C08J2423/06 ,  C08J2423/08 ,  C08L23/06 ,  C08L2205/025 ,  C08L2205/03 ,  C08L23/0815 ,  C08F212/08 ,  C08L25/06

Abstract: Composite resin particles including: a polyethylene-based resin and a polystyrene-based resin, wherein the polyethylene-based resin and the polystyrene-based resin are included in the ranges of 50 to 20% by mass and 50 to 80% by mass respectively, with respect to the total of these resins, the polyethylene-based resin is composed of: a first polyethylene-based resin having a medium density to a high density in the range of 925 to 965 kg/m3; and a second polyethylene-based resin which is linear and which has a lower density than the first polyethylene-based resin, and the first polyethylene-based resin and the second polyethylene-based resin are included in the ranges of 90 to 30% by mass and 10 to 70% by mass respectively, with respect to the total of these resins.

Abstract translation: 复合树脂颗粒包括：聚乙烯类树脂和聚苯乙烯类树脂，其中聚乙烯类树脂和聚苯乙烯类树脂的含量分别为50〜20质量％，50〜80质量％ 相对于这些树脂的总和，聚乙烯类树脂由以下组成：中密度为925〜965kg / m 3的高密度的中等密度的第一聚乙烯类树脂; 和第二聚乙烯系树脂，其直链状且密度比第一聚乙烯系树脂低，第一聚乙烯系树脂和第二聚乙烯系树脂的含量为90〜30质量％ 和相对于这些树脂的总量分别为10〜70质量％。