JPS55163502A - Forming method for gas dam of optical fiber cable - Google Patents
Forming method for gas dam of optical fiber cableInfo
- Publication number
- JPS55163502A JPS55163502A JP7092779A JP7092779A JPS55163502A JP S55163502 A JPS55163502 A JP S55163502A JP 7092779 A JP7092779 A JP 7092779A JP 7092779 A JP7092779 A JP 7092779A JP S55163502 A JPS55163502 A JP S55163502A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- pipe
- optical fiber
- tacky
- gas dam
- 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.)
- Granted
Links
- 239000013307 optical fiber Substances 0.000 title abstract 5
- 229920005989 resin Polymers 0.000 abstract 5
- 239000011347 resin Substances 0.000 abstract 5
- 125000006850 spacer group Chemical group 0.000 abstract 3
- 238000005452 bending Methods 0.000 abstract 1
- 230000007547 defect Effects 0.000 abstract 1
- 230000006866 deterioration Effects 0.000 abstract 1
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 238000012856 packing Methods 0.000 abstract 1
- 229920005749 polyurethane resin Polymers 0.000 abstract 1
- 229920002050 silicone resin Polymers 0.000 abstract 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 abstract 1
Landscapes
- Insulated Conductors (AREA)
Abstract
PURPOSE: To make injection easy and prevent the deterioration of optical fibers by disposing helical spacers on the inside circumference of the pipe of the cable, loosely inserting optical fiber cores in the central part thereof and injecting and packing tacky resins therein.
CONSTITUTION: Helical spacers 3 are disposed on the inside circumference of a pipe 2 or are integrated with the pipe 2. Optical fiber cores 4 are loosely inserted. The tacky silicone resin, polyurethane resin or tacky foamed urethane resin or the like is respectively injected from one end of this pipe. Since the packed resin has good bending characteristic, the defect that the optical fibers are loaded with stress owing to thermal fluctuations with time and are thereby degraded is obviated. In addition, the resin to be injected is put in through the helical spacers and since this causes the resin to be sufficiently infiltrated to the inside, the resin effectively acts as a gas dam. Unlike conventional gas dam cables, the protruding portions may be eliminated.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54070927A JPS5821242B2 (en) | 1979-06-06 | 1979-06-06 | How to form a gas dam in an optical fiber cable |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54070927A JPS5821242B2 (en) | 1979-06-06 | 1979-06-06 | How to form a gas dam in an optical fiber cable |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55163502A true JPS55163502A (en) | 1980-12-19 |
JPS5821242B2 JPS5821242B2 (en) | 1983-04-28 |
Family
ID=13445623
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP54070927A Expired JPS5821242B2 (en) | 1979-06-06 | 1979-06-06 | How to form a gas dam in an optical fiber cable |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5821242B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59184305A (en) * | 1983-04-04 | 1984-10-19 | Furukawa Electric Co Ltd:The | Optical cable unit |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60151336U (en) * | 1984-03-19 | 1985-10-08 | 株式会社クボタ | combine |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5037446A (en) * | 1973-06-21 | 1975-04-08 | ||
JPS51121337U (en) * | 1975-03-24 | 1976-10-01 |
-
1979
- 1979-06-06 JP JP54070927A patent/JPS5821242B2/en not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5037446A (en) * | 1973-06-21 | 1975-04-08 | ||
JPS51121337U (en) * | 1975-03-24 | 1976-10-01 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59184305A (en) * | 1983-04-04 | 1984-10-19 | Furukawa Electric Co Ltd:The | Optical cable unit |
Also Published As
Publication number | Publication date |
---|---|
JPS5821242B2 (en) | 1983-04-28 |
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