WO2021157334A1 - 光ファイバケーブルおよび光ファイバケーブルの製造方法 - Google Patents

光ファイバケーブルおよび光ファイバケーブルの製造方法 Download PDF

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Publication number
WO2021157334A1
WO2021157334A1 PCT/JP2021/001627 JP2021001627W WO2021157334A1 WO 2021157334 A1 WO2021157334 A1 WO 2021157334A1 JP 2021001627 W JP2021001627 W JP 2021001627W WO 2021157334 A1 WO2021157334 A1 WO 2021157334A1
Authority
WO
WIPO (PCT)
Prior art keywords
optical fiber
core
fiber cable
fibers
intervening layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2021/001627
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
興泉 向井
正敏 大野
大里　健
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujikura Ltd
Original Assignee
Fujikura Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujikura Ltd filed Critical Fujikura Ltd
Priority to AU2021217841A priority Critical patent/AU2021217841A1/en
Priority to CA3161708A priority patent/CA3161708A1/en
Priority to JP2021575694A priority patent/JP7387770B2/ja
Priority to CN202180006267.XA priority patent/CN114641717A/zh
Priority to EP21750262.4A priority patent/EP4102275A4/en
Priority to US17/774,983 priority patent/US20220390701A1/en
Publication of WO2021157334A1 publication Critical patent/WO2021157334A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4401—Optical cables
    • G02B6/4429—Means specially adapted for strengthening or protecting the cables
    • G02B6/443—Protective covering
    • G02B6/4431—Protective covering with provision in the protective covering, e.g. weak line, for gaining access to one or more fibres, e.g. for branching or tapping
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4479—Manufacturing methods of optical cables
    • G02B6/449—Twisting
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4401—Optical cables
    • G02B6/4429—Means specially adapted for strengthening or protecting the cables
    • G02B6/443—Protective covering
    • G02B6/4432—Protective covering with fibre reinforcements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4479—Manufacturing methods of optical cables
    • G02B6/4486—Protective covering
    • G02B6/4488—Protective covering using metallic tubes

Definitions

  • an optical fiber cable provided with a metal reinforcing layer, it is required to improve the ease of work when taking out the internal optical fiber in addition to the ease of manufacturing.
  • the optical fiber unit 11 of the present embodiment is a so-called intermittent adhesive tape core wire, and when a plurality of optical fibers 11a are pulled in a direction orthogonal to the longitudinal direction, they adhere to each other so as to spread in a mesh shape (spider web shape). Has been done. Specifically, one optical fiber 11a is adhered to the adjacent optical fibers 11a at different positions in the longitudinal direction, and the adjacent optical fibers 11a are spaced apart from each other in the longitudinal direction. Are glued to each other.
  • the mode of the optical fiber unit 11 is not limited to the intermittent adhesive tape core wire, and may be changed as appropriate.
  • the optical fiber unit 11 may be a unit in which a plurality of optical fibers 11a are simply bundled with a binding material 11b, or a plurality of optical fiber tape core wires may be bundled.
  • the manufacturing apparatus 100 includes an intervening layer forming portion 101, a reinforcing layer forming portion 102, an outer cover forming portion 103, and a cooling portion 104.
  • the intervening layer forming portion 101, the reinforcing layer forming portion 102, the outer cover forming portion 103, and the cooling portion 104 are arranged in this order from the upstream side to the downstream side.
  • the intervening layer forming portion 101 is supplied with the core 10 and a plurality of yarns Y serving as the intervening layer 20.
  • the core 10 is formed by winding a plurality of optical fiber units 11 in advance with a presser winding 12 on the upstream side of the intervening layer forming portion 101.
  • the yarn Y is a string formed by twisting fibers serving as an intervening layer 20.
  • the intervening layer 20 is formed by winding a plurality of yarns Y in an SZ shape around the core 10.
  • the yarn Y may be pre-hardened with a resin. When the yarn Y is hardened by the resin, the yarn Y may be heated in the intervening layer forming portion 101 to soften or melt the resin. By heating the resin, the rigidity of the yarn Y is lowered to facilitate twisting in an SZ shape, and it is possible to suppress the formation of a gap between the yarns Y.
  • the fiber is spirally wound around the core 10, it becomes necessary to partially cut the fiber when taking out the optical fiber 11a from the optical fiber cable 1, and at that time, the fiber is erroneously wound. It may be cut off.
  • the jacket 40 is longer than the pitch (SZ twisting cycle) in which the fibers are twisted in the SZ shape in the longitudinal direction. And by removing the reinforcing unit 30, the fibers can be easily unwound and the core 10 can be exposed.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Surface Treatment Of Glass Fibres Or Filaments (AREA)
PCT/JP2021/001627 2020-02-07 2021-01-19 光ファイバケーブルおよび光ファイバケーブルの製造方法 Ceased WO2021157334A1 (ja)

Priority Applications (6)

Application Number Priority Date Filing Date Title
AU2021217841A AU2021217841A1 (en) 2020-02-07 2021-01-19 Optical fiber cable and method for manufacturing optical fiber cable
CA3161708A CA3161708A1 (en) 2020-02-07 2021-01-19 Optical fiber cable and method for manufacturing optical fiber cable
JP2021575694A JP7387770B2 (ja) 2020-02-07 2021-01-19 光ファイバケーブル
CN202180006267.XA CN114641717A (zh) 2020-02-07 2021-01-19 光缆以及光缆的制造方法
EP21750262.4A EP4102275A4 (en) 2020-02-07 2021-01-19 OPTICAL FIBER CABLE AND METHOD FOR MANUFACTURING OPTICAL FIBER CABLE
US17/774,983 US20220390701A1 (en) 2020-02-07 2021-01-19 Optical fiber cable and method for manufacturing optical fiber cable

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2020019604 2020-02-07
JP2020-019604 2020-02-07

Publications (1)

Publication Number Publication Date
WO2021157334A1 true WO2021157334A1 (ja) 2021-08-12

Family

ID=77199262

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2021/001627 Ceased WO2021157334A1 (ja) 2020-02-07 2021-01-19 光ファイバケーブルおよび光ファイバケーブルの製造方法

Country Status (8)

Country Link
US (1) US20220390701A1 (https=)
EP (1) EP4102275A4 (https=)
JP (1) JP7387770B2 (https=)
CN (1) CN114641717A (https=)
AU (1) AU2021217841A1 (https=)
CA (1) CA3161708A1 (https=)
TW (1) TWI770784B (https=)
WO (1) WO2021157334A1 (https=)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2023127524A1 (https=) * 2021-12-27 2023-07-06
JPWO2023127528A1 (https=) * 2021-12-27 2023-07-06

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA3246287A1 (en) * 2022-03-24 2025-06-13 Fujikura Ltd. FIBER OPTIC CABLE
EP4524633A1 (en) * 2023-09-15 2025-03-19 HFCL Limited Compact armored intermittently bonded ribbon cables

Citations (6)

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US20030118295A1 (en) * 2001-12-26 2003-06-26 Lail Jason C. Fiber optic cable having a ripcord
JP4105792B2 (ja) 1996-12-09 2008-06-25 アルカテル−ルーセント 単管構造補強光ファイバケーブル
JP2014006376A (ja) * 2012-06-25 2014-01-16 Fujikura Ltd 光ファイバケーブル及びその製造方法
CN107340577A (zh) * 2017-08-01 2017-11-10 长飞光纤光缆股份有限公司 一种自承层绞式防鼠咬光缆及其制造方法
WO2018221142A1 (ja) * 2017-06-02 2018-12-06 株式会社フジクラ 光ファイバケーブル及び光ファイバケーブルの製造方法
JP2020019604A (ja) 2018-07-31 2020-02-06 キョーラク株式会社 構造体の製造方法

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DE4020800C2 (de) * 1990-06-27 1999-01-07 Siemens Ag Verfahren zur Herstellung einer zugfeste Elemente enthaltenden Kunststoffhülle
JP3540479B2 (ja) * 1995-12-22 2004-07-07 株式会社フジクラ Ｓｚ撚線の製造装置
US5917977A (en) * 1997-09-16 1999-06-29 Siecor Corporation Composite cable
US6459836B1 (en) * 1999-12-16 2002-10-01 Avaya Technology Corp. Corrugated armor for providing protection and tensile stiffness
US6563991B1 (en) * 2000-06-13 2003-05-13 Alcatel Optical fiber cable for easy access to ripcords and having ripcord reliability
AU2002358588A1 (en) * 2002-12-03 2004-06-23 Pirelli And C. S.P.A. High count telecommunication optical cable with controlled fiber length, method and apparatus for manufacturing the same
US6775444B1 (en) * 2003-02-28 2004-08-10 Corning Cable Systems Llc Fiber optic assemblies and methods of making the same
CN2842458Y (zh) * 2005-08-02 2006-11-29 江苏通光信息有限公司 防鼠咬软光缆
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US9669592B2 (en) * 2012-07-27 2017-06-06 Corning Optical Communications LLC Method of manufacturing a fiber optic drop cable
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US20030118295A1 (en) * 2001-12-26 2003-06-26 Lail Jason C. Fiber optic cable having a ripcord
JP2014006376A (ja) * 2012-06-25 2014-01-16 Fujikura Ltd 光ファイバケーブル及びその製造方法
WO2018221142A1 (ja) * 2017-06-02 2018-12-06 株式会社フジクラ 光ファイバケーブル及び光ファイバケーブルの製造方法
CN107340577A (zh) * 2017-08-01 2017-11-10 长飞光纤光缆股份有限公司 一种自承层绞式防鼠咬光缆及其制造方法
JP2020019604A (ja) 2018-07-31 2020-02-06 キョーラク株式会社 構造体の製造方法

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See also references of EP4102275A4

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2023127524A1 (https=) * 2021-12-27 2023-07-06
JPWO2023127528A1 (https=) * 2021-12-27 2023-07-06
WO2023127528A1 (ja) * 2021-12-27 2023-07-06 株式会社フジクラ 光ファイバ集合体及び光ケーブル
WO2023127524A1 (ja) * 2021-12-27 2023-07-06 株式会社フジクラ 光ファイバ集合体及び光ケーブル
JP7716505B2 (ja) 2021-12-27 2025-07-31 株式会社フジクラ 光ケーブル用の光ファイバ集合体及び光ケーブル
JP7730381B2 (ja) 2021-12-27 2025-08-27 株式会社フジクラ スロットレス型の光ケーブル

Also Published As

Publication number Publication date
EP4102275A1 (en) 2022-12-14
TWI770784B (zh) 2022-07-11
US20220390701A1 (en) 2022-12-08
JPWO2021157334A1 (https=) 2021-08-12
AU2021217841A1 (en) 2022-05-26
EP4102275A4 (en) 2024-03-06
JP7387770B2 (ja) 2023-11-28
CA3161708A1 (en) 2021-08-12
TW202132845A (zh) 2021-09-01
CN114641717A (zh) 2022-06-17

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