JPS6423211A - Production of spacer for optical fiber cable - Google Patents

Production of spacer for optical fiber cable

Info

Publication number
JPS6423211A
JPS6423211A JP62180614A JP18061487A JPS6423211A JP S6423211 A JPS6423211 A JP S6423211A JP 62180614 A JP62180614 A JP 62180614A JP 18061487 A JP18061487 A JP 18061487A JP S6423211 A JPS6423211 A JP S6423211A
Authority
JP
Japan
Prior art keywords
outside
inside layer
spiral grooves
molten
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.)
Pending
Application number
JP62180614A
Other languages
Japanese (ja)
Inventor
Hitoshi Tsuchida
Nobuyasu Nakamizu
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.)
Toyo Kagaku Co Ltd
Original Assignee
Toyo Kagaku Co 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 Toyo Kagaku Co Ltd filed Critical Toyo Kagaku Co Ltd
Priority to JP62180614A priority Critical patent/JPS6423211A/en
Publication of JPS6423211A publication Critical patent/JPS6423211A/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

Landscapes

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

Abstract

PURPOSE:To improve the dimensional accuracy and productivity of a product by coating a molten resin discharged from dies onto the outside circumference of a tension member thereby forming an inside layer having a truly circular section and the outside circumference having spiral grooves. CONSTITUTION:The molten polyethylene (PE) heated and kneaded by an extruder 1a is coated by the rotary die 2a on the outside circumference of a tension member A which is supplied from an un-coiler 3 and has 1.4mmphi single wire diameter to form the inside layer B having 6.4mmphi truly circular shape. After the inside layer B is cooled down to the softening point or below by a cooler 4a, the molten PE is coated on the inside layer by the rotary die 2b of an extruder 1b to form the outside layer D having the spiral grooves C. The member is then cooled by a cooler 4b and is coiled on a coiler 6. The flow of the molten resin to the spiral grooves is made constant, by which the dimensional accuracy is improved. Since the coatings are divided to the inside and outside layers, the layers are easily cooled and the productivity is improved.
JP62180614A 1987-07-20 1987-07-20 Production of spacer for optical fiber cable Pending JPS6423211A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62180614A JPS6423211A (en) 1987-07-20 1987-07-20 Production of spacer for optical fiber cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62180614A JPS6423211A (en) 1987-07-20 1987-07-20 Production of spacer for optical fiber cable

Publications (1)

Publication Number Publication Date
JPS6423211A true JPS6423211A (en) 1989-01-25

Family

ID=16086312

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62180614A Pending JPS6423211A (en) 1987-07-20 1987-07-20 Production of spacer for optical fiber cable

Country Status (1)

Country Link
JP (1) JPS6423211A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61179408A (en) * 1985-02-05 1986-08-12 Ube Nitto Kasei Kk Spacer for carrying optical fiber and its production
JPS61179407A (en) * 1985-02-05 1986-08-12 Ube Nitto Kasei Kk Spacer for carrying optical fiber and its production

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61179408A (en) * 1985-02-05 1986-08-12 Ube Nitto Kasei Kk Spacer for carrying optical fiber and its production
JPS61179407A (en) * 1985-02-05 1986-08-12 Ube Nitto Kasei Kk Spacer for carrying optical fiber and its production

Similar Documents

Publication Publication Date Title
CH486273A (en) Process for forming uniform droplets of a determined diameter, apparatus for carrying out this process and application of this process to the manufacture of a granulated product
AU591693B2 (en) Apparatus and method for the production of ribbed pipes
GB1601303A (en) Manufacturing cable elements comprising optical fibres by a vertical machine
US2386818A (en) Coating method and apparatus
JPS6423211A (en) Production of spacer for optical fiber cable
US4731138A (en) Apparatus for producing double-walled corrugated pipes
JPS6423212A (en) Production of spacer for optical fiber cable
GB1466452A (en) Production of heat resistant synthetic resin tubes
GB1309613A (en) Apparatus for the continuous manufacture of tubular film
SU846305A1 (en) Assembly for forming casting strads and putting them onto conveyer
JP2781007B2 (en) Manufacturing method of grooved rod
JPS5713410A (en) Manufacture of infrared optical fiber
JPS57163539A (en) Manufacture of tube with coated inside surface
JPS63272518A (en) Method for forming protective layer on plastic optical fiber
SU1403104A1 (en) Extrusion head for applying polymer sheath over cable-like articles
JPS6134653Y2 (en)
JPS62215009A (en) Method and apparatus for forming composite monofilament strand from thermoplastic
GB1359836A (en) Method of manufacturing a coated wire and apparatus relevant thereto
JPS557481A (en) Production device for steel wire-reinforced resin hose
JPS6345022A (en) Long-sized synthetic resin coated pipe and its manufacture
JPS6478203A (en) Manufacture of spacer for carrying optical fiber
JPS57161701A (en) Manufacture of optical fiber cable
JPH0780232B2 (en) Manufacturing method for self-supporting cable
JPH03150510A (en) Production of split type coated tape optical fiber
SU964741A1 (en) Device for forming coating on long articles