US 11,752,710 B2
Composite material, pultrusion device, and pultrusion method
Shunichi Morishima, Tokyo (JP); Toshio Kozasa, Tokyo (JP); Masatake Hatano, Tokyo (JP); Kazuaki Kishimoto, Tokyo (JP); Yukio Takeuchi, Tokyo (JP); Masayuki Yamashita, Tokyo (JP); and Hitoshi Ojika, Aichi (JP)
Assigned to MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo (JP)
Appl. No. 16/304,174
Filed by MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo (JP)
PCT Filed Jul. 4, 2017, PCT No. PCT/JP2017/024548
§ 371(c)(1), (2) Date Nov. 23, 2018,
PCT Pub. No. WO2018/008652, PCT Pub. Date Jan. 11, 2018.
Claims priority of application No. 2016-134522 (JP), filed on Jul. 6, 2016.
Prior Publication US 2020/0282672 A1, Sep. 10, 2020
Int. Cl. B29C 70/52 (2006.01); B29C 70/14 (2006.01); C08J 5/04 (2006.01); B29K 63/00 (2006.01); B29K 307/04 (2006.01)
CPC B29C 70/52 (2013.01) [B29C 70/14 (2013.01); C08J 5/042 (2013.01); B29K 2063/00 (2013.01); B29K 2307/04 (2013.01); C08J 2363/00 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A composite material formed by drawing fiber sheets, the composite material comprising:
a reinforced part which is a part reinforced against a load acting in a load direction, the load direction being a longitudinal direction of the composite material,
wherein the reinforced part includes
a core part which includes reinforcing fibers in which a fiber direction is oriented along the load direction, and is provided to extend along the load direction, and
a covering part formed by covering a periphery of the core part with a part of the fiber sheets constituting the composite material, the part of the fiber sheets including reinforcing fibers oriented along a direction different from the longitudinal direction,
wherein the core part is wound by the part of the fiber sheets, and
wherein, in a cross section of the composite material taken along a plane orthogonal to the longitudinal direction, the reinforced part is a part farthest from a centroid of the cross section.