US 12,285,901 B2
Composite material structure body production method, layered body production method, layered body, and layered form
Masahiko Shimizu, Tokyo (JP); Toshiki Kitazawa, Tokyo (JP); and Shoya Mano, Tokyo (JP)
Assigned to MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo (JP)
Appl. No. 17/797,476
Filed by MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo (JP)
PCT Filed Jul. 6, 2020, PCT No. PCT/JP2020/026484
§ 371(c)(1), (2) Date Aug. 4, 2022,
PCT Pub. No. WO2021/157106, PCT Pub. Date Aug. 12, 2021.
Claims priority of application No. PCT/JP2020/004922 (WO), filed on Feb. 7, 2020.
Prior Publication US 2023/0071796 A1, Mar. 9, 2023
Int. Cl. B29C 53/04 (2006.01); B29C 70/30 (2006.01); B29K 307/04 (2006.01); B29K 309/08 (2006.01)
CPC B29C 53/04 (2013.01) [B29C 70/30 (2013.01); B29K 2307/04 (2013.01); B29K 2309/08 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A method for producing a composite structure, the method comprising:
a lamination step of laminating a plurality of fiber sheets to fabricate a laminate including a deformable portion extending in one direction; and
a forming step of performing bending forming along a deformation line included in the deformable portion and extending in the one direction, to deform the deformable portion,
wherein the deformable portion is provided between a first adjacent portion and a second adjacent portion adjacent to each other, and after the forming step, the deformable portion becomes a connecting portion having an arc shape provided between the first adjacent portion and the second adjacent portion,
in the lamination step, the laminate is fabricated such that the deformable portion has a shape in which a shape of a cross section in a laminating direction of the laminate and in an intersecting direction intersecting the one direction is bent or curved and a length in the intersecting direction changes along the one direction, and
in the forming step, the laminate is formed such that a length of the connecting portion in the intersecting direction is uniform along one direction.