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    VEHICLE SEAT CUSHION CORE
    1.
    发明申请
    VEHICLE SEAT CUSHION CORE 审中-公开

    公开(公告)号：US20200062157A1

    公开(公告)日：2020-02-27

    申请号：US16489039

    申请日：2018-02-26

    申请人： JSP Corporation

    发明人： Atsuo TAKAYAMA ,  Takamitsu MATSUMOTO

    IPC分类号： B60N2/90 ,  A47C27/14 ,  A47C7/18

    摘要： Provided is a core material of a seat cushion for a vehicle, including: a thermoplastic resin expanded beads molded article having a substantially rectangular shape in top view, that has thick portions on a front side and both sides of a circumferential portion thereof, and that has an occupant seating portion on an upper surface in an inner region thereof; and an annular frame member that is insert-molded at the circumferential portion of the thermoplastic resin expanded beads molded article. In the thermoplastic resin expanded beads molded article, formed are first slits having: slit pieces that extend along a front frame member at a position in front of the occupant sitting part and inside from the front frame part; and slit pieces that extend along a side frame member at a position outside from the occupant sitting part and inside from a side frame part.

    VEHICLE SEAT CORE MEMBER
    2.
    发明申请
    VEHICLE SEAT CORE MEMBER 审中-公开

    公开(公告)号：US20190014907A1

    公开(公告)日：2019-01-17

    申请号：US16067645

    申请日：2017-02-03

    申请人： JSP CORPORATION

    发明人： Katsunori HISAMATSU ,  Atsuo TAKAYAMA ,  Keiichi HASHIMOTO

    IPC分类号： A47C7/20 ,  A47C27/14

    摘要： There is provided a vehicle seat core member that is superior in terms of a dimensional accuracy as well as integrity of a thermoplastic resin expanded beads molded body and a frame member. A vehicle seat core member (100) is formed as an integrally molded article of a thermoplastic resin expanded beads molded body (10) and a frame member (20), the thermoplastic resin expanded beads molded body (10) is formed of thermoplastic resin expanded beads (30) having through holes (32), and a porosity of the thermoplastic resin expanded beads molded body (10) is 10 vol % or more and 40 vol % or less.

    SEAT CORE MATERIAL
    3.
    发明申请
    SEAT CORE MATERIAL 审中-公开

    公开(公告)号：US20200238870A1

    公开(公告)日：2020-07-30

    申请号：US16486269

    申请日：2018-02-15

    申请人： JSP CORPORATION

    发明人： Atsuo TAKAYAMA ,  Keiichi HASHIMOTO ,  Katsunori HISAMATSU

    IPC分类号： B60N2/70

    摘要： A seat core material of the present invention is a seat core material for vehicle including a thermoplastic resin expanded bead article and a frame member embedded in a peripheral edge portion of the expanded bead article. The frame member includes a front frame part, a rear frame part, and two side frame parts interconnecting the front frame part and the rear frame part. Slits crossing the two side frame parts are formed along a longitudinal direction with continuous parts left intact outside the side frame parts on both ends of the expanded bead article. The slit penetrates or does not penetrate the expanded bead article in a thickness direction. The continuous parts are formed in a curved shape or a bent shape.

    SEAT CORE MATERIAL
    5.
    发明申请
    SEAT CORE MATERIAL 审中-公开

    公开(公告)号：US20200001760A1

    公开(公告)日：2020-01-02

    申请号：US16484264

    申请日：2018-02-06

    申请人： JSP CORPORATION

    发明人： Keiichi HASHIMOTO ,  Katsunori HISAMATSU ,  Atsuo TAKAYAMA

    IPC分类号： B60N2/70 ,  B29C44/12 ,  B29C44/34

    摘要： A seat core material of the present invention is a seat core material for vehicle including: a thermoplastic resin expanded bead article; and a frame member embedded in a peripheral edge portion of the expanded bead article. The expanded bead article has two or more lightening parts in an area from a center portion as seen in a front-back direction to a rear side. A through or non-through slit is provided in a continuous part between the lightening parts or an area in front of the continuous part over a distance of 100 mm or less along a vehicle-width direction of the expanded bead article. The slit is closed at both longitudinal ends.

    METHOD FOR PRODUCING SEAT CORE MATERIAL, AND SEAT CORE MATERIAL
    8.
    发明申请
    METHOD FOR PRODUCING SEAT CORE MATERIAL, AND SEAT CORE MATERIAL 审中-公开

    公开(公告)号：US20180368578A1

    公开(公告)日：2018-12-27

    申请号：US16062644

    申请日：2016-12-20

    申请人： JSP CORPORATION

    发明人： Atsuo TAKAYAMA ,  Motoaki UEGURI ,  Keiichi HASHIMOTO

    IPC分类号： A47C7/18 ,  A47C27/14 ,  A47C7/24 ,  B60N2/90

    摘要： A method for producing a seat core material that has a foamed molded substrate and a frame member embedded in a periphery thereof, which includes, as step (a), heating thermoplastic resin expanded beads in a mold cavity, in which the frame member has been disposed, to fusion-bond the expanded beads to each other and to obtain the foamed molded substrate with the frame member being embedded in the periphery thereof; and, as step (b), simultaneously with step (a) or after step (a), forming a void cavity S, S′ in the foamed molded substrate at a position along and adjacent to the frame member. The void cavity S, S′ has a size and shape that allows a relative displacement between the frame member and the foamed molded substrate when the foamed molded substrate shrinks after step (b).