JPS649832A - Jig for connecting and holding preform for optical fiber - Google Patents
Jig for connecting and holding preform for optical fiberInfo
- 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
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.
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)
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 |
-
1987
- 1987-07-01 JP JP16245587A patent/JPS649832A/en active Pending
Cited By (2)
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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