US 12,337,469 B2
Flexible structure
Takafumi Hirata, Kanagawa (JP); Yuki Hotoda, Kanagawa (JP); Yuki Hayakawa, Kanagawa (JP); and Yuta Ishiyama, Kanagawa (JP)
Assigned to NHK SPRING CO., LTD., Kanagawa (JP)
Appl. No. 18/291,910
Filed by NHK SPRING CO., LTD., Kanagawa (JP)
PCT Filed Jul. 20, 2022, PCT No. PCT/JP2022/028171
§ 371(c)(1), (2) Date Jan. 24, 2024,
PCT Pub. No. WO2023/008274, PCT Pub. Date Feb. 2, 2023.
Claims priority of application No. 2021-122593 (JP), filed on Jul. 27, 2021.
Prior Publication US 2024/0351224 A1, Oct. 24, 2024
Int. Cl. B25J 18/06 (2006.01); B25J 9/10 (2006.01)
CPC B25J 18/06 (2013.01) [B25J 9/104 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A flexible structure comprising:
a first member capable of flexing and extending;
a second member that covers an outer circumference of the first member and is capable of flexing and extending in conjunction with the first member;
a first recess provided in a radial direction at the first member; and
a first cord-shaped member held between the first member and the second member in a state in which at least a part of the first cord-shaped member is inserted into the first recess in the radial direction,
wherein the first recess is recessed radially inward from an outer circumferential surface of the first member.