JPS6445747A - Production of optical communication line filled with jelly and apparatus therefor - Google Patents

Production of optical communication line filled with jelly and apparatus therefor

Info

Publication number
JPS6445747A
JPS6445747A JP62201399A JP20139987A JPS6445747A JP S6445747 A JPS6445747 A JP S6445747A JP 62201399 A JP62201399 A JP 62201399A JP 20139987 A JP20139987 A JP 20139987A JP S6445747 A JPS6445747 A JP S6445747A
Authority
JP
Japan
Prior art keywords
jelly
pipe
optical fiber
communication line
optical communication
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
JP62201399A
Other languages
Japanese (ja)
Inventor
Akihiro Tanaka
Satoyuki Otani
Hiroshi Sagou
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.)
Hitachi Cable Ltd
Original Assignee
Hitachi Cable 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 Hitachi Cable Ltd filed Critical Hitachi Cable Ltd
Priority to JP62201399A priority Critical patent/JPS6445747A/en
Publication of JPS6445747A publication Critical patent/JPS6445747A/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
    • G02B6/4484—Manufacturing methods of optical cables with desired surplus length between fibres and protection features
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/05—Filamentary, e.g. strands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/34—Cross-head annular extrusion nozzles, i.e. for simultaneously receiving moulding material and the preform to be coated
    • 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
    • G02B6/44384—Means specially adapted for strengthening or protecting the cables the means comprising water blocking or hydrophobic materials

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Surface Treatment Of Glass Fibres Or Filaments (AREA)

Abstract

PURPOSE:To prevent the wire breakage failure of an optical communication line, by actively applying a spiral margin of length to an optical fiber utilizing the flowing force of a jelly filled in the line to prevent the intrusion of water, thereby securing the margin or length. CONSTITUTION:A jelly pipe 13 is placed at the core part of a cross head of an extruder 10 for extruding a thermoplastic polymer 3 to coat an optical fiber 1. An optical fiber 1 is passed through the jelly pipe 13 and a jelly 2 is supplied to the pipe from a lateral hole. The jelly-supplying hole 14b is rotated while shifting the optical fiber 1 toward the side wall of the pipe 13 by the flowing force of the jelly 2. The fiber 1 is deviated from the center of the pipe 13 by this process and is spirally disposed in the jelly 2.
JP62201399A 1987-08-12 1987-08-12 Production of optical communication line filled with jelly and apparatus therefor Pending JPS6445747A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62201399A JPS6445747A (en) 1987-08-12 1987-08-12 Production of optical communication line filled with jelly and apparatus therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62201399A JPS6445747A (en) 1987-08-12 1987-08-12 Production of optical communication line filled with jelly and apparatus therefor

Publications (1)

Publication Number Publication Date
JPS6445747A true JPS6445747A (en) 1989-02-20

Family

ID=16440445

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62201399A Pending JPS6445747A (en) 1987-08-12 1987-08-12 Production of optical communication line filled with jelly and apparatus therefor

Country Status (1)

Country Link
JP (1) JPS6445747A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114957198A (en) * 2022-03-29 2022-08-30 宁波大学 Antimycin compound and preparation method and application thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114957198A (en) * 2022-03-29 2022-08-30 宁波大学 Antimycin compound and preparation method and application thereof

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