JPS57161702A - Optical fiber cable and its manufacture - Google Patents

Optical fiber cable and its manufacture

Info

Publication number
JPS57161702A
JPS57161702A JP56046723A JP4672381A JPS57161702A JP S57161702 A JPS57161702 A JP S57161702A JP 56046723 A JP56046723 A JP 56046723A JP 4672381 A JP4672381 A JP 4672381A JP S57161702 A JPS57161702 A JP S57161702A
Authority
JP
Japan
Prior art keywords
optical fiber
mouthpiece
projecting parts
fiber cable
tension member
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.)
Pending
Application number
JP56046723A
Other languages
Japanese (ja)
Inventor
Taira Hama
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.)
Piolax Inc
Mihama Seisakusho KK
Original Assignee
Mihama Seisakusho KK
Kato Hatsujo Inc
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 Mihama Seisakusho KK, Kato Hatsujo Inc filed Critical Mihama Seisakusho KK
Priority to JP56046723A priority Critical patent/JPS57161702A/en
Publication of JPS57161702A publication Critical patent/JPS57161702A/en
Pending legal-status Critical Current

Links

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
    • G02B6/4479—Manufacturing methods of optical cables
    • G02B6/4489—Manufacturing methods of optical cables of central supporting members of lobe structure
    • 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
    • G02B6/4407—Optical cables with internal fluted support member

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Insulated Conductors (AREA)

Abstract

PURPOSE:To obtain an optical fiber cable having high strength by fitting a mouthpiece which has corrugated projecting parts on its internal circumferential wall, rotatably to an extruding machine, guiding a tension member to the center between the projecting parts of an extrusion hole, and extruding it together with resin over rotation synchronizing with the mouthpiece. CONSTITUTION:On the internal circumferential wall of the mouthpiece 40 of an extruding machine, corrugated projecting parts 44 are provided, and the mouthpiece 40 is fitted rotatably. The tension member 26 of an optical fiber cable is guided to the center between the projecting parts 44, and then extruded together with resin while rotates synchronizing with the rotation of the mouthpiece 40. Consequently, a spacer 20 has the tension member 26 at the projecting part and also has recessed grooves 24. In grooves 24, optical fiber cores 22 are arranged and a protective layer which covers the projecting parts 28 and recessed grooves 24 of the spacer 20 is provided, thus manufacturing an optical fiber cable. In this way, the cores 22 and tension members 26 are arranged spirally to obtain the cable which is free of application of excessive force to each core and has large strength.
JP56046723A 1981-03-30 1981-03-30 Optical fiber cable and its manufacture Pending JPS57161702A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56046723A JPS57161702A (en) 1981-03-30 1981-03-30 Optical fiber cable and its manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56046723A JPS57161702A (en) 1981-03-30 1981-03-30 Optical fiber cable and its manufacture

Publications (1)

Publication Number Publication Date
JPS57161702A true JPS57161702A (en) 1982-10-05

Family

ID=12755253

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56046723A Pending JPS57161702A (en) 1981-03-30 1981-03-30 Optical fiber cable and its manufacture

Country Status (1)

Country Link
JP (1) JPS57161702A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60169607U (en) * 1984-06-28 1985-11-11 岡野電線株式会社 fiber optic cable
JPS60173912U (en) * 1984-04-27 1985-11-18 住友電気工業株式会社 Multi-core optical cable

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60173912U (en) * 1984-04-27 1985-11-18 住友電気工業株式会社 Multi-core optical cable
JPS60169607U (en) * 1984-06-28 1985-11-11 岡野電線株式会社 fiber optic cable

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