US 12,441,008 B2
Bending structure and conductive device
Takafumi Hirata, Kanagawa (JP); and Yuki Hotoda, Kanagawa (JP)
Assigned to NHK SPRING CO., LTD., Kanagawa (JP)
Appl. No. 18/275,805
Filed by NHK SPRING CO., LTD., Kanagawa (JP)
PCT Filed Feb. 24, 2022, PCT No. PCT/JP2022/007542
§ 371(c)(1), (2) Date Aug. 3, 2023,
PCT Pub. No. WO2022/181671, PCT Pub. Date Sep. 1, 2022.
Claims priority of application No. 2021-029086 (JP), filed on Feb. 25, 2021.
Prior Publication US 2024/0116195 A1, Apr. 11, 2024
Int. Cl. B25J 17/02 (2006.01); B25J 19/00 (2006.01)
CPC B25J 17/02 (2013.01) [B25J 19/0025 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A bending structure, comprising:
a bending part, which has an inner coil part and an outer coil part that are elastically bendable and stretchable, and in which a corresponding winding section of the inner coil part is fit in a space between adjacent winding sections of the outer coil part,
wherein at least one of the inner coil part and the outer coil part is conductive and forms a conductive path;
a flexible member, being conductive and provided on an inner side of the inner coil part,
wherein the flexible member is insulated from at least one of the inner coil part and the outer coil part forming the conductive path and forms another conductive path; and
an end member that is conductive and connected with an end part of at least one of the inner coil part and the outer coil part forming the conductive path,
wherein the end member forms the conductive path with at least one of the inner coil part and the outer coil part.