US 12,466,088 B2
Bending structural body
Takafumi Hirata, Kanagawa (JP); Yuki Hotoda, Kanagawa (JP); and Yuki Hayakawa, Kanagawa (JP)
Assigned to NHK SPRING CO., LTD., Kanagawa (JP)
Appl. No. 18/279,881
Filed by NHK SPRING CO., LTD., Kanagawa (JP)
PCT Filed Mar. 3, 2022, PCT No. PCT/JP2022/009091
§ 371(c)(1), (2) Date Sep. 1, 2023,
PCT Pub. No. WO2022/186327, PCT Pub. Date Sep. 9, 2022.
Claims priority of application No. 2021-035244 (JP), filed on Mar. 5, 2021.
Prior Publication US 2025/0033230 A1, Jan. 30, 2025
Int. Cl. B25J 18/00 (2006.01); B25J 17/00 (2006.01); B25J 18/06 (2006.01)
CPC B25J 18/06 (2013.01) [B25J 17/00 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A bending structural body, comprising:
a first bending part and a second bending part that are elastically bendable;
a connection part connecting between the first bending part and the second bending part and having higher bending rigidity than the first bending part and the second bending part; and
a plurality of first cord-like members attached to the first bending part and inserted through the first bending part, the connection part, and the second bending part, and being capable of bending the first bending part by pulling on the side of the second bending part,
wherein each of the plurality of first cord-like members comprises a plurality of divided parts that include a first divided part and a second divided part, wherein the first divided part and the second divided part of each of the plurality of first cord-like members are divided at the connection part and dispersed in a circumferential direction, and the first divided part and the second divided part are inserted through the second bending part in a dispersed state,
wherein the divided parts of the same first cord-like member are drawn out from the second bending part for the pulling, and portions drawn out from the second bending part constitute loop-shaped loop parts that are connected to each other.