公开(公告)号：US12179845B2

公开(公告)日：2024-12-31

申请号：US17911716

申请日：2021-03-12

Applicant: ARISAWA MFG. CO., LTD. ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Hiroshi Tanaka ,  Tetsuya Kobayashi ,  Takashi Yamamoto ,  Hiroko Suzuki

IPC: B32B1/08 ,  B32B5/06 ,  B32B5/22 ,  B62D25/20 ,  B62D29/04 ,  F16C7/02

Abstract: An object of the present invention is to provide an innovative and highly practical connection member for a vehicle structure. The present invention is a connection member for a vehicle structure equipped with at least two connection sections (2) that are used in the vehicle structure and that connect appropriate sites within the vehicle structure, the connection member for a vehicle structure being characterized in having a layered structure section (1) configured by impregnating a layered body (4) in which a plurality of fiber bodies (3) have been layered with a matrix resin and curing the impregnated layered body, and employing, as the fiber bodies (3), bodies in which bundles of unidirectionally aligned carbon fibers (5) have been interwoven with thermally fusible fibers (6).

公开(公告)号：US11865794B2

公开(公告)日：2024-01-09

申请号：US16976786

申请日：2018-03-15

Applicant: ARISAWA MFG. CO., LTD. ,  Ikumi Uchiyama

Inventor： Akira Uchiyama ,  Hiroshi Tanaka ,  Masaaki Hirai

IPC: B29C70/22 ,  C08J5/24 ,  B29K63/00 ,  B29K75/00

CPC classification number: B29C70/22 ,  C08J5/243 ,  B29K2063/00 ,  B29K2075/00 ,  C08J2371/12 ,  C08J2375/14 ,  C08J2471/12 ,  C08J2475/14

Abstract: The present invention provides a prepreg that has high impact resistance despite being an all-carbon-fiber FRP (CFRP), the prepreg moreover enabling a molding time to be set to five minutes or less and making it possible to reduce molding costs. This prepreg is obtained by impregnating carbon fiber with a matrix resin comprising a mixture of a thermoplastic resin, a thermosetting resin, and a curing agent, wherein: the thermoplastic resin is a phenoxy resin; the thermosetting resin is a urethane acrylate resin; the thermoplastic resin and the thermosetting resin are compounded in a mass ratio of 15:85-35:65 (thermoplastic resin/thermosetting resin); and the curing agent causes cross-linking to occur due to a radical polymerization reaction, and is formed so as to include first and second peroxides having mutually different initiation temperatures, initiation of the second peroxide starting at a temperature at which termination of the first peroxide occurs.

公开(公告)号：US11918983B2

公开(公告)日：2024-03-05

申请号：US16462072

申请日：2017-06-23

Applicant: ARISAWA MFG. CO., LTD.

Inventor： Hiroshi Tanaka ,  Yuichi Kawai ,  Mikio Kuroda

IPC: B01J3/04 ,  B01D61/08 ,  B01D63/12 ,  B29C70/06 ,  B29L31/00

CPC classification number: B01J3/048 ,  B01D61/08 ,  B01J3/042 ,  B01D63/12 ,  B29C70/06 ,  B29L2031/7156

Abstract: Provided is a highly practical pressure vessel in which there is minimal inside diameter deformation even if openings in a center inlet/outlet part are large, and there is little pressure-induced elongation from a center to both ends. This pressure vessel is composed of a tube body made of a fiber-reinforced resin, wherein: a center inlet/outlet part that lets a liquid in or out is provided to a tube-body-axial center part on a peripheral surface of the tube body; end-part inlet/outlet parts that let a fluid in or out are provided to tube-body-axial end parts of the tube body; the tube body is configured from a helical layer of which fibers are inclined at an angle of from ±40° to less than ±50° relative to a tube-body-axial direction, a reinforcing layer of which fibers are inclined at a greater angle than the helical layer relative to the tube-body-axial direction, and a seal layer constituting an innermost layer; a breakaway part that breaks away circumferentially outward from the seal layer is provided to a position on the helical layer where the center inlet/outlet part is provided; the reinforcing layer is configured from an inward reinforcing layer and an outward reinforcing layer provided respectively to inward and outward sides of the helical layer so as to enclose the breakaway part of the helical layer therebetween; and the center inlet/outlet part is provided so as to penetrate the inward reinforcing layer, the breakaway part of the helical layer, and the outward reinforcing layer.