US 12,485,628 B2
Composite material structure manufacturing jig, method of manufacturing the same, and method of manufacturing composite material structure
Toshikazu Sana, Kobe (JP)
Assigned to KAWASAKI JUKOGYO KABUSHIKI KAISHA, Kobe (JP)
Filed by Kawasaki Jukogyo Kabushiki Kaisha, Kobe (JP)
Filed on Dec. 14, 2023, as Appl. No. 18/539,297.
Application 18/539,297 is a division of application No. 17/423,494, granted, now 11,890,823, previously published as PCT/JP2020/001516, filed on Jan. 17, 2020.
Claims priority of provisional application 62/793,459, filed on Jan. 17, 2019.
Prior Publication US 2024/0109260 A1, Apr. 4, 2024
Int. Cl. B29C 70/34 (2006.01); B29C 33/62 (2006.01); B29C 70/54 (2006.01); B29K 105/08 (2006.01); B29L 31/30 (2006.01)
CPC B29C 70/345 (2013.01) [B29C 33/62 (2013.01); B29C 70/54 (2013.01); B29K 2105/0872 (2013.01); B29L 2031/3082 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A method of manufacturing a composite material structure, the method comprising:
placing a frame component including a channel on an outer peripheral surface of a mold;
inserting a composite material structure manufacturing jig into the channel of the frame component, wherein
the composite material structure manufacturing jig includes a tubular body formed of an elastic material containing a reinforcement fiber, the tubular body includes a trapezoidal transverse section that is a cross section orthogonal to a longitudinal direction of the tubular body, the trapezoidal transverse section includes an upper base and a lower base longer than the upper base, and an inner surface of the tubular body is coated with a gas barrier layer, and
an interface between the gas barrier layer and the tubular body is treated by a surface treatment;
laminating prepreg on the composite material structure manufacturing jig and the frame component; and
curing the prepreg by heating the prepreg.