公开(公告)号：US20180368578A1

公开(公告)日：2018-12-27

申请号：US16062644

申请日：2016-12-20

Applicant: JSP CORPORATION

Inventor： Atsuo TAKAYAMA ,  Motoaki UEGURI ,  Keiichi HASHIMOTO

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

Abstract: 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).

公开(公告)号：US20170252952A1

公开(公告)日：2017-09-07

申请号：US15509966

申请日：2015-09-15

Applicant: JSP CORPORATION

Inventor： Atsuo TAKAYAMA ,  Motoaki UEGURI ,  Keiichi HASHIMOTO

IPC: B29C44/12 ,  B60N2/005 ,  B60N2/64 ,  B29C44/56

CPC classification number: B29C44/1271 ,  B29C44/00 ,  B29C44/56 ,  B29K2023/12 ,  B29K2705/12 ,  B29L2031/58 ,  B29L2031/771 ,  B60N2/005 ,  B60N2/646 ,  B60N2/90

Abstract: A method for manufacturing including securing attachments disposed near both ends in the seat core member front portion made of a molded article of expanded beads, the securing attachments being connected by an embedded connecting member extending in the seat core member longitudinal direction. The securing attachment includes a base embedded in the molded article of expanded beads, an upright frame joined to the base to extend out of the molded article of expanded beads, and a securing portion extending from the upright frame to project away from the molded article of expanded beads. The method includes creating, during or after molding the molded article of expanded beads, a space or notch in an outer side of the securing attachment upright frame of the molded article of expanded beads in the seat core member longitudinal direction, the notch extending toward an outer side in the seat core member longitudinal direction.