US 12,467,587 B2
Mandrel and test piece collecting method for filament winding
Yusuke Tsuchiyama, Wako (JP); Yuta Urushiyama, Wako (JP); Takeshi Watanabe, Wako (JP); Kosuke Tatsushima, Wako (JP); Hiroyuki Takahashi, Wako (JP); Koji Nozoe, Tokyo (JP); and Michael Bruyneel, Alleur (BE)
Assigned to Honda Motor Co., Ltd., Tokyo (JP)
Filed by HONDA MOTOR CO., LTD., Tokyo (JP)
Filed on Aug. 31, 2023, as Appl. No. 18/240,410.
Prior Publication US 2025/0075854 A1, Mar. 6, 2025
Int. Cl. B29C 70/32 (2006.01); F17C 1/06 (2006.01)
CPC F17C 1/06 (2013.01) [F17C 2201/0104 (2013.01); F17C 2203/067 (2013.01); F17C 2203/0673 (2013.01); F17C 2209/2163 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A mandrel around which fiber-reinforced resin is wound, the mandrel comprising:
a cylinder portion that has a plurality of first flat surfaces; and
a pair of dome portions that are formed at respective ends of the cylinder portion and each have a plurality of second flat surfaces,
wherein the first flat surfaces and the second flat surfaces are discontinuous with each other.