Optical branching cable set

Patent metadata

Field	Value
Publication number	US-2025277949-A1
Application number	US-202519069867-A
Country	US
Kind code	A1
Filing date	Mar 4, 2025
Priority date	Mar 4, 2024
Publication date	Sep 4, 2025
Grant date	—

Abstract

An optical branching cable set includes a plurality of optical branching cables, and a branching cord bag. At least two of the optical branching cables each include a main cable including a plurality of optical cords each including at least one optical fiber, a tensile strength member, and a tape that forms an outermost layer. A branching cord portion including at least one optical fiber that is led out from the optical cords of the main cable to an outside of the outermost layer. The branching cord bag is configured to collectively accommodate a plurality of branching cord portions provided in the plurality of optical branching cables.

First claim

What is claimed is:

1 . An optical branching cable set comprising:
a plurality of optical branching cables; and a branching cord bag, wherein at least two of the optical branching cables each include:
a main cable including:
a plurality of optical cords each including at least one optical fiber;
a tensile strength member; and
a tape that forms an outermost layer; and

a branching cord portion including at least one optical fiber that is led out from the optical cords of the main cable to an outside of the outermost layer, and
wherein the branching cord bag is configured to collectively accommodate a plurality of branching cord portions provided in the plurality of optical branching cables.

2 . The optical branching cable set according to claim 1 ,
wherein the branching cord bag is made of a material having a cushioning property.

3 . The optical branching cable set according to claim 1 ,
wherein the branching cord bag is fixed to the plurality of optical branching cables at two different locations along the main cable.

4 . The optical branching cable set according to claim 1 ,
wherein the branching cord bag includes:
a base portion that is sandwiched between the main cable and the branching cord portion in a state where the branching cord portion is accommodated in the branching cord bag; and
a top surface portion that is located so as to cover an upper portion of the branching cord portion in a state where the branching cord portion is accommodated in the branching cord bag,
wherein the base portion does not cover a branching portion to which the branching cord portion is led out from the main cable, and wherein the top surface portion has a larger dimension along an axis of the main cable than the base portion so as to cover the branching portion.

5 . The optical branching cable set according to claim 1 ,
wherein the branching cord bag includes an inner bag configured to be accommodated inside the branching cord bag, and wherein the inner bag is configured to accommodate at least a part of the branching cord portions of the optical branching cables.

6 . The optical branching cable set according to claim 1 ,
wherein an outer surface of the branching cord bag is formed with an extra length that extends according to a curvature of the optical branching cable.

Assignees

• Sumitomo Electric Industries
• Sumitomo Electric Optifrontier Co Ltd

Inventors

• Watanabe Shunichi
• Shimazu Takayuki
• Fukui Junji
• Shibata Masahiro
• AOSHIMA Yohei

Classifications

• G02B6/441

  built up from sub-bundles (G02B6/4429, G02B6/4439, G02B6/4479 take precedence) · CPC title

• G02B6/4475 Primary

  with provision for lateral branching (G02B6/4431 takes precedence) · CPC title

• G02B6/444 Primary

  Systems or boxes with surplus lengths · CPC title