US 11,860,431 B2
Cable traction terminal structure
Ryoichi Mitobe, Sakura (JP); and Kansei Shindo, Sakura (JP)
Assigned to Fujikura Ltd., Tokyo (JP)
Appl. No. 17/921,836
Filed by Fujikura Ltd., Tokyo (JP)
PCT Filed Apr. 13, 2021, PCT No. PCT/JP2021/015297
§ 371(c)(1), (2) Date Oct. 27, 2022,
PCT Pub. No. WO2021/225062, PCT Pub. Date Nov. 11, 2021.
Claims priority of provisional application 63/021,100, filed on May 7, 2020.
Prior Publication US 2023/0161126 A1, May 25, 2023
Int. Cl. G02B 6/44 (2006.01)
CPC G02B 6/44384 (2023.05) [G02B 6/4431 (2023.05)] 6 Claims
OG exemplary drawing
 
1. An optical cable traction terminal structure comprising:
a helically wound inner tube that houses an optical cable; and
a flexible outer tube disposed on an outer circumferential surface of the helically wound inner tube, wherein
a part of the flexible outer tube enters an inside of a groove on the outer circumferential surface of the helically wound inner tube, and
a connecting member:
is disposed on the outer circumferential surface of a rear end of the helically wound inner tube,
overlaps the rear end of the helically wound inner tube and a rear end of the flexible outer tube, and
is adhered to the rear end of the flexible outer tube at least where the connecting member overlaps the rear end of the flexible outer tube.