Core detaching tool for optical fiber cable

Abstract

The invention provides a core detaching tool with which an optical fiber ribbon unit can be separated / taken out from a sheath without increasing transmission loss, in intermediate post-branching of the optical fiber cable in which the optical fiber ribbon unit is housed in the sheath. The core detaching tool for an optical fiber cable is equippted with a pair of cable holding parts, and a moving mechanism. Inside the cable holding parts, projections are provided, wherein the interval between the projections is made larger than the dimension of the major side in the cross section of the optical fiber ribbon unit.

Description

technical field [0001] The invention relates to a core wire extraction tool for extracting optical fiber core wires from optical cables with slightly rectangular cross-sections by tearing the sheath. Background technique [0002] image 3 Shown is an example of the structure of an existing optical fiber cable. image 3 In the optical fiber cable, a pair of conductive metal wires or glass fibers, plastics and other non-conductive metal wires are added to the upper and lower sides of the laminated two optical fiber ribbon units 10 to form an anti-tension body 11. Together, these are covered with a cable portion sheath 12 of thermoplastic resin such as PE, flame-retardant PE, and PVC to form a cable portion (optical cable) 14 . The supporting wire part sheath 16 made of thermoplastic resin such as PE, flame retardant PE, PVC covers the supporting wire 15 made of metal wire such as steel wire to form a supporting wire part 17 . The cable portion 14 and the support wire portion ...

AI Technical Summary

Problems solved by technology

In this case, the optical fiber ribbon unit is bent in the direction of the ribbon width, and the core wire located inside the bend is left to meander, increasing the transmission loss by 1dB or more

Images