JPS6055802B2 - Manufacturing method of optical communication cable - Google Patents
Manufacturing method of optical communication cableInfo
- Publication number
- JPS6055802B2 JPS6055802B2 JP51015612A JP1561276A JPS6055802B2 JP S6055802 B2 JPS6055802 B2 JP S6055802B2 JP 51015612 A JP51015612 A JP 51015612A JP 1561276 A JP1561276 A JP 1561276A JP S6055802 B2 JPS6055802 B2 JP S6055802B2
- Authority
- JP
- Japan
- Prior art keywords
- sheath
- speed
- manufacturing
- optical communication
- communication cable
- 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.)
- Expired
Links
Landscapes
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
- Processes Specially Adapted For Manufacturing Cables (AREA)
- Manufacturing Of Electric Cables (AREA)
Description
【発明の詳細な説明】
本発明は、被覆光ファイバー等の光ケーブル用素線を
シースで被覆するとき、当該素線がシース内でたるむよ
うにした光通信ケーブルの製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing an optical communication cable, in which a wire for an optical cable such as a coated optical fiber is coated with a sheath so that the wire becomes slack within the sheath.
ケーブル用素線として光ファイバを用いた光通信ケー
ブルでは、それの製造及び布設の際に加わる張力から光
ファイバーを保護するため、光ケーブル用素線を被覆内
でたるませたい場合がある。In optical communication cables that use optical fibers as the cable strands, it is sometimes desirable to allow the optical cable strands to slack within the sheath in order to protect the optical fibers from tension applied during manufacturing and installation.
本発明はこのようなたるみをもたせた光通信用ケーブ
ルを製造するための方法に関し、これを図面により詳記
すれば、光ケーブル用素線１をローラ２の矢印方向の回
転により、シース被覆時における同シースの走行速度、
すなわち後述する水槽５のあとに設けられ図示されてい
ない例えば引取キヤプスタン等の引取機の引取速度（こ
の引取速度は引取キヤプスタン外径×引取キヤプスタン
回転数で表示される。またこの引取機の前または後ろに
一定の接触外径を有するローラを配し、該ローラをシー
スとを接触せしめ、前記同様ローラ外径×ローラ回転数
で引取速度を表示する場合もある。）より速い速度で押
出被覆用の被覆機３側に繰出し、当該速度で繰出された
光ケーブル用素線１の外周に被覆機３によりシース４を
押出被覆するようにしたものである。 なお、５は冷却
用の水槽である。The present invention relates to a method for manufacturing an optical communication cable with such slack, and to describe this in detail with reference to the drawings, the fiber optic cable 1 is rotated in the direction of the arrow by the roller 2, so that it is coated with a sheath. The running speed of the same sheath,
That is, the take-up speed of a take-up machine such as a take-up capstan (not shown) installed after the water tank 5 described later (this take-up speed is expressed as take-up capstan outer diameter x take-up capstan rotation speed). In some cases, a roller with a constant contact outside diameter is placed behind the sheath, and the roller is brought into contact with the sheath, and the take-up speed is indicated by the roller outside diameter x roller rotation speed as described above.) For extrusion coating at a faster speed. The sheath 4 is extruded and coated on the outer periphery of the optical cable strand 1 fed out at the same speed by the coating machine 3. In addition, 5 is a water tank for cooling.
上記において、被覆機３の手前で光ケーブル用素線１
にたるみが生じるような場合には、その素線１の剛性で
たるみが実質的に生じない程度にローラ２を被覆機３側
に接近させるとか、ローラ２と被覆機３との間にたるみ
防止用の管状ガイドを設ければよい。In the above, the optical cable strand 1 is placed before the coating machine 3.
If sagging occurs in the wire, the rigidity of the wire 1 may cause the roller 2 to approach the coating machine 3 to such an extent that no sag substantially occurs, or the roller 2 and the coating machine 3 may be provided with a mechanism to prevent sagging. A tubular guide may be provided for this purpose.
また、光ケーブル用素線１の繰出しには図のようなロ
ーラ２ではなく、無限軌条式の送込み装置を用いてもよ
い。Further, instead of the rollers 2 as shown in the figure, an endless track feeding device may be used to feed out the optical cable strand 1.
本発明は叙上のように、光ケーブル用素線の繰出し速
度をシース被覆時における同シースの走行速度、すなわ
ち前述した引取速度より速くしたので、当該素線１はシ
ース４内で蛇行した状態になり、従つてたるみの付いた
光通信用ケーブルを容易に製造することができる。As described above, in the present invention, the unwinding speed of the optical cable strand is made faster than the traveling speed of the sheath when it is covered with the sheath, that is, the above-mentioned take-up speed, so that the strand 1 is kept in a meandering state within the sheath 4. Therefore, an optical communication cable with slack can be easily manufactured.
なお、前記蛇行状態は主としてシース４の内面と素線１
の外面との接触摩擦により維持されるものと考えられる
。 以下に本発明の具体例を示す。光ケーブル用素線の
外径 Ｏ、９ｒｍ
シース内径 ２、Ｏ−ｍｎ
シース外径 ３』−
シース材料 ポリエチレン
押出被覆機によるパイプ押出
光ケーブル用素線繰出し速度 ３ｌｍ／分シース走行速
度（引取速度） ３０ｍ／分 前記具体例ではシース４
に対して光ケーブル用素線１は約３％のたるみ量を有し
ている。Note that the meandering state mainly occurs between the inner surface of the sheath 4 and the strand 1.
It is thought that this is maintained by contact friction with the outer surface of the Specific examples of the present invention are shown below. Outer diameter of fiber for optical cable: O, 9rm Sheath inner diameter: 2, O-mn Sheath outer diameter: 3'' - Sheath material Pipe extrusion using polyethylene extrusion coating machine Feeding speed of fiber for optical cable: 3 lm/min Sheath running speed (take-up speed): 30 m/min In the above specific example, sheath 4
On the other hand, the optical cable strand 1 has a slack amount of about 3%.
なお、前記具体例では光ケーブル用素線１は１本である
が複数本挿入してもよい。In addition, although the number of optical cable strands 1 is one in the above specific example, a plurality of optical cables may be inserted.
またシース４の材料としてはこの他ポリ塩化ビニル等の
熱可塑性プラスチック材料が使用される。さらには前記
光ケーブル用素線１にシース４を押出被覆する前に金属
−プラスチックラミネートテープをバイブ状に被せ、こ
れに被覆機３により前述のプラスチックを前記同様に押
出被覆してもよい。In addition, as the material for the sheath 4, thermoplastic materials such as polyvinyl chloride can be used. Furthermore, before the optical cable strand 1 is extruded and coated with the sheath 4, a metal-plastic laminate tape may be covered in the shape of a vibrator, and the above-mentioned plastic may be extruded and coated thereon by the coating machine 3 in the same manner as described above.
図面は、本発明に係る方法の一実施例を示す説明図であ
る。
１・・・・・・光ケーブル用素線、２・・・・・・ロー
ラ、３・・・・・・被覆機、４・・・・・・シース。The drawings are explanatory views showing one embodiment of the method according to the present invention. 1... Plain wire for optical cable, 2... Roller, 3... Coating machine, 4... Sheath.
Claims (1)
ける同シースの走行速度より速い速度で繰出しながら同
素線の外周にシースを押出被覆し、同シース内で同素線
がたるむようにしたことを特徴とする光通信ケーブルの
製造方法。1. A sheath was extruded around the outer periphery of the fiber optic cable to be coated while being fed out at a speed higher than the running speed of the sheath at the time of sheathing, and the wire was allowed to slacken within the sheath. Features: A manufacturing method for optical communication cables.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP51015612A JPS6055802B2 (en) | 1976-02-16 | 1976-02-16 | Manufacturing method of optical communication cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP51015612A JPS6055802B2 (en) | 1976-02-16 | 1976-02-16 | Manufacturing method of optical communication cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5298988A JPS5298988A (en) | 1977-08-19 |
| JPS6055802B2 true JPS6055802B2 (en) | 1985-12-06 |
Family
ID=11893517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP51015612A Expired JPS6055802B2 (en) | 1976-02-16 | 1976-02-16 | Manufacturing method of optical communication cable |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6055802B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5860706A (en) * | 1981-10-07 | 1983-04-11 | Nippon Telegr & Teleph Corp <Ntt> | Optical cable element |
| CH660801A5 (en) * | 1984-12-14 | 1987-06-15 | Maillefer Sa | METHOD FOR MANUFACTURING AN OPTICAL FIBER WIRING ELEMENT, INSTALLATION FOR IMPLEMENTING THE METHOD AND WIRING ELEMENT OBTAINED BY THIS PROCESS. |
-
1976
- 1976-02-16 JP JP51015612A patent/JPS6055802B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5298988A (en) | 1977-08-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4752113A (en) | Waterproof optical fiber cable | |
| US4017579A (en) | Method for forming a sheathed electrical cable | |
| US4195468A (en) | Method and apparatus for use in the assembly of optical cables | |
| JP4996001B2 (en) | Self-supporting optical fiber cable manufacturing apparatus and method | |
| JPH09189831A (en) | Fiber optic cable | |
| EP0023154B1 (en) | Optical fibres cable and method of manufacturing it | |
| GB2136350A (en) | Method for fabricating a cable core including optical fibers | |
| JPS6055802B2 (en) | Manufacturing method of optical communication cable | |
| US4325212A (en) | Laying optical waveguides and electrical conductors onto a support filament | |
| US3544665A (en) | Method and apparatus for manufacturing electrical conductors | |
| EP0189304A2 (en) | Optical cable manufacture | |
| CA1083393A (en) | Load bearing optical fiber cables | |
| GB2079970A (en) | Improvements in or relating to optical cable elements | |
| US20220206236A1 (en) | Adhesive tape jacketed communication cable | |
| GB2157018A (en) | Optical fibre cables | |
| JP5813529B2 (en) | Optical fiber cable and optical fiber cable manufacturing method | |
| JPS623372Y2 (en) | ||
| JP3254386B2 (en) | Manufacturing method of self-supporting optical cable with extra length with slit | |
| JP2867867B2 (en) | Manufacturing method of optical fiber cable with suspension wire | |
| JPS59137582A (en) | Coating of fiber cables | |
| GB2180665A (en) | Optical cables and the manufacture thereof | |
| GB1561466A (en) | Coating of fibres | |
| GB2253421A (en) | Cable manufacture | |
| JPH02244016A (en) | Production of loose tube core | |
| JPH07270650A (en) | Plastic optical fiber cord |