JPS649832A - Jig for connecting and holding preform for optical fiber - Google Patents

Jig for connecting and holding preform for optical fiber

Info

Publication number
JPS649832A
JPS649832A JP16245587A JP16245587A JPS649832A JP S649832 A JPS649832 A JP S649832A JP 16245587 A JP16245587 A JP 16245587A JP 16245587 A JP16245587 A JP 16245587A JP S649832 A JPS649832 A JP S649832A
Authority
JP
Japan
Prior art keywords
rod
preform
optical fiber
melting
dummy
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
JP16245587A
Other languages
Japanese (ja)
Inventor
Hideo Kakuzen
Manzo Yamaguchi
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries 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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP16245587A priority Critical patent/JPS649832A/en
Publication of JPS649832A publication Critical patent/JPS649832A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/01—Manufacture of glass fibres or filaments
    • C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
    • C03B37/025—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from reheated softened tubes, rods, fibres or filaments, e.g. drawing fibres from preforms
    • C03B37/027—Fibres composed of different sorts of glass, e.g. glass optical fibres
    • C03B37/02736—Means for supporting, rotating or feeding the tubes, rods, fibres or filaments to be drawn, e.g. fibre draw towers, preform alignment, butt-joining preforms or dummy parts during feeding

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)

Abstract

PURPOSE:To obtain the titled connecting and retaining metal fittings capable of carrying out melting operation between preform for optical fiber and glass dummy rod in high precision and good workability, by providing means for stopping slipping-out of the dummy rod between the dummy rod melting to upper end of preform for optical fiber and connecting part inserting to upper end of the dummy rod. CONSTITUTION:An inserting convex part 14 projected at the lower end of a tubular connecting rod 13 is closely inserted in the upper part of the glass dummy rod 12 coaxially and integrally melting a preform 11 for optical fiber at the lower end. An inserting hollow part 15 retaining the rod 13 coaxially to the rod 13 is formed. A pin 16 for stopping slipping-out crossing the inserting convex part 14 and inserting hollow part 15 is detachably hit and installed to the rod 12 and rod 13. According to the above-mentioned method, workability for melting and connecting the preform 11 is improved, because the rod can be shortened. It is not required to constitute the connecting and retaining jig with only expensive quartz glass, etc., and advantageous also in cost, because a metallic rod relatively reduced in heat resistance can be used as the rod 13 without any hindrance.
JP16245587A 1987-07-01 1987-07-01 Jig for connecting and holding preform for optical fiber Pending JPS649832A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16245587A JPS649832A (en) 1987-07-01 1987-07-01 Jig for connecting and holding preform for optical fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16245587A JPS649832A (en) 1987-07-01 1987-07-01 Jig for connecting and holding preform for optical fiber

Publications (1)

Publication Number Publication Date
JPS649832A true JPS649832A (en) 1989-01-13

Family

ID=15754941

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16245587A Pending JPS649832A (en) 1987-07-01 1987-07-01 Jig for connecting and holding preform for optical fiber

Country Status (1)

Country Link
JP (1) JPS649832A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0337128A (en) * 1989-07-04 1991-02-18 Fujikura Ltd Production device of optical fiber and its production
FR2802916A1 (en) * 1999-12-27 2001-06-29 Cit Alcatel PREFORM INPUT ARRANGEMENT FOR FIBER OPTIC DRAWING OVEN, OVEN HAVING SUCH ARRANGEMENT AND PREFORM EQUIPPED TO COOPERATE WITH THIS ARRANGEMENT

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0337128A (en) * 1989-07-04 1991-02-18 Fujikura Ltd Production device of optical fiber and its production
FR2802916A1 (en) * 1999-12-27 2001-06-29 Cit Alcatel PREFORM INPUT ARRANGEMENT FOR FIBER OPTIC DRAWING OVEN, OVEN HAVING SUCH ARRANGEMENT AND PREFORM EQUIPPED TO COOPERATE WITH THIS ARRANGEMENT

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