JPS6423212A - Production of spacer for optical fiber cable - Google Patents
Production of spacer for optical fiber cableInfo
- Publication number
- JPS6423212A JPS6423212A JP62180615A JP18061587A JPS6423212A JP S6423212 A JPS6423212 A JP S6423212A JP 62180615 A JP62180615 A JP 62180615A JP 18061587 A JP18061587 A JP 18061587A JP S6423212 A JPS6423212 A JP S6423212A
- Authority
- JP
- Japan
- Prior art keywords
- outside
- layer
- outside circumference
- supplied
- die
- 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
-
- 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 produce a product having high dimensional accuracy with high productivity by supplying a molten resin to the outside circumference of a tension member and forming an inside layer having a truly circular shape through a stationary die and an outside layer having spiral grooves through a rotary die on the outside circumference thereof, respectively. CONSTITUTION:The molten polyethylene which is heated and kneaded by an extruder is supplied from a flow passage 21 of a cross head die 2 to the stationary die 22 to coat the inside layer B having the truly circular section on the outside circumference of the tension member A which is supplied from an un- coiler and is a single wire of 1.4mmphi. The molten resin is then supplied from a flow passage 25 to the rotary die 24 rotated by a sprocket 23 to form the outside layer D having the spiral grooves C on the outside circumference of the inside layer B. The member is then cooled and coiled on a coiler. Since the outside layer is formed on the outside circumference of the inside layer, the constant flow of the resin to the spiral groove parts is obtd. The product having the high dimensional accuracy is thus produced with the high productivity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62180615A JPS6423212A (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 |
|---|---|---|---|
| JP62180615A JPS6423212A (en) | 1987-07-20 | 1987-07-20 | Production of spacer for optical fiber cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6423212A true JPS6423212A (en) | 1989-01-25 |
Family
ID=16086328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62180615A Pending JPS6423212A (en) | 1987-07-20 | 1987-07-20 | Production of spacer for optical fiber cable |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6423212A (en) |
Citations (1)
| 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 |
-
1987
- 1987-07-20 JP JP62180615A patent/JPS6423212A/en active Pending
Patent Citations (1)
| 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 |
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