JPS5968708A - Production of optical cable unit - Google Patents
Production of optical cable unitInfo
- Publication number
- JPS5968708A JPS5968708A JP57179000A JP17900082A JPS5968708A JP S5968708 A JPS5968708 A JP S5968708A JP 57179000 A JP57179000 A JP 57179000A JP 17900082 A JP17900082 A JP 17900082A JP S5968708 A JPS5968708 A JP S5968708A
- Authority
- JP
- Japan
- Prior art keywords
- cores
- optical fiber
- filler
- unit
- clearance
- 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
- 230000003287 optical effect Effects 0.000 title claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 239000013307 optical fiber Substances 0.000 claims abstract description 35
- 239000000945 filler Substances 0.000 claims abstract description 24
- 239000000835 fiber Substances 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 4
- 210000002445 nipple Anatomy 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 239000011800 void material Substances 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229910001361 White metal Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 238000007765 extrusion coating Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000010969 white metal Substances 0.000 description 1
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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Ropes Or Cables (AREA)
- Manufacturing Of Electric Cables (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は水密性をもつ光ケーブルユニットの製造方法に
関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of manufacturing a watertight optical cable unit.
中心線の外周に撚シ合せた複数本の光フアイバ心線をユ
ニット充填材中に埋込んだ構造の光ケーブルユニットが
、光海底ケーブル用ユニットとして検討されている。An optical cable unit having a structure in which a plurality of optical fiber core wires twisted together around the outer periphery of a center line are embedded in a unit filler is being considered as an optical submarine cable unit.
しかるに従来は、第1図に示すように表面に中心線被核
2を有する中心線1の周囲に、第2図に示すように光フ
ァイバ3の周囲に1次被援(緩衝被〜を含むときもある
)4、ゲル状充填層5、心線被覆6を順次設けてなる光
フアイバ心線7を第5図に示すように複数本撚り合せ、
その外周にユニット充填材8を押出し被作した構造であ
った。However, conventionally, as shown in FIG. 1, around the centerline 1 having the centerline sheath 2 on the surface, and around the optical fiber 3 as shown in FIG. (sometimes) 4. A plurality of optical fiber cores 7 each having a gel-like filling layer 5 and a core coating 6 sequentially provided thereon are twisted together as shown in FIG.
It had a structure in which a unit filler 8 was extruded around its outer periphery.
しかしながら、このような構造では隣接する光フアイバ
心線7が相互に接触されているので、ユニット充填材8
の押出し被種時に、このユニット充填材8が各党ファイ
バ心線7がなす層の内側に入り込まず、中心線@f1f
2の外周に空隙9が生じ、この空隙9を通して水走りが
発生する問題がおり、水密性が悪い欠点があった。However, in such a structure, since adjacent optical fiber core wires 7 are in contact with each other, unit filler material 8
During extrusion seeding, this unit filler 8 does not enter inside the layer formed by each party fiber core 7, and the center line @f1f
There is a problem that a void 9 is formed on the outer periphery of 2, and water runs through this void 9, resulting in poor watertightness.
本発明の目的は、水密性の向上を図れる光ケーブルユニ
ットの製造方法を提供するにある。An object of the present invention is to provide a method for manufacturing an optical cable unit that can improve watertightness.
本発明に係る光ケーブルユニットの製造方法は、中心線
のまわシに間隔をおいて複数本の光フアイバ心線を心線
相互間に所要の間隔が存在するように位置決めした状態
で前記各光フアイバ心線を前記中心線のまわりに回転し
つつ撚り口金に供給して愁り合せる際に、前記各光フア
イバ心線の相互間に隙間がおいている位置でこれら光フ
アイバ心線を包囲するように外周にユニット充填材を押
出し破覆し、前記ユニット充填材が前記撚シロ金側に引
きとられて縮径される過程で前記各党ファイバ心線間の
隙間からこれら光フアイバ心線がなす層の内側に前記ユ
ニット充填材を移動させ、前記各光フアイバ心線がなす
層と前記中心線との間の隙間を前記ユニット充填材で埋
めることを特徴とするものである。In the method for manufacturing an optical cable unit according to the present invention, a plurality of optical fiber cores are positioned at intervals around the center line so that a required spacing exists between the cores, and each of the optical fibers is When supplying the core wires to the twisting base while rotating them around the center line and twisting them together, the optical fiber core wires are surrounded at positions where there are gaps between the optical fiber core wires. A unit filler is extruded on the outer periphery of the optical fiber to break it, and in the process of the unit filler being pulled out to the twisted white metal side and being reduced in diameter, the layers formed by these optical fiber cores are exposed through the gaps between the fiber cores of each party. The present invention is characterized in that the unit filler is moved inward, and the gap between the layer formed by each of the optical fiber cores and the center line is filled with the unit filler.
以下本発明の実施例を図面を参照して詳細に説明する。Embodiments of the present invention will be described in detail below with reference to the drawings.
第4図乃至86図は本発明の第1実施例を示したもので
ある。図示のように中心線サプライ10からは中心線1
が押出機クロスヘッド11に向けてサプライする。また
、この中心線1のまわりで公転しつつ自転する心線サグ
ライ12がらはそれぞれ光フアイバ心線7を押出機クロ
スヘッド11に向けてサグライする。本実施例の押出機
クロスへラド11は、ダイス13内に筒状のニラグル1
4をテーパ筒状のニップルホルダー15に支持させて配
設し、このニップルホルダー15は軸受16で回転自在
に支持させ、且つこのニップルホルダー15の外端には
ギア17を取付け、このギア17を駆動ギア18を介し
てモータ19に連結し、ニラグル14内の目板2oをニ
ラグル14を介して回転させることができるようにして
いる。クロスヘッド11に送シ込んだ中心線1は目板2
0の中心孔を通し、各党ファイバ心線7は中心線1のま
わりに間隔をおき且っ各光7アイパ心線7の相互間に所
要の間隔が存在するように目板7の外周寄りの孔を通し
て位置決めを行う。この状態で心線サプライ12の公転
と目板2oの回転とにより各党ファイバ心線7に撚りを
与えつつ中心線1と共に撚90金21に供給する。押出
機クロスヘッド11では、光フアイバ心線7の相互間に
第6図に示すように隙間がおいている状態のところで、
これら光フアイバ心線7を一括して包囲するようにパイ
プ状にユニット充填材8を押出し検相する。ユニット充
填材8は撚り口金21に引き増られる過程で徐々に縮径
させ、各光フアイバ心線7間の隙間からこれら光フアイ
バ心線7がなす層の内側にユニット充填材8の一部を移
動させ、各光フアイバ心線7がなす層と中心線1との間
の隙間を第7図に示すようにユニット充填材8で埋める
。かくして第7図に示すような水密性の良い光ケーブル
ユニット22を得る。この光ケーブルユニット22を冷
却槽23に通して冷却した稜、引取機24で利権りつつ
省取機25で看取る。4 to 86 show a first embodiment of the present invention. As shown in the figure, from the center line supply 10, the center line 1
is supplied to the extruder crosshead 11. Further, each of the optical fiber core wires 12 rotating on its own axis while revolving around the center line 1 redirects the optical fiber core wire 7 toward the extruder crosshead 11. The extruder cross rad 11 of this embodiment has a cylindrical Niraglu 1 inside the die 13.
4 is supported by a tapered cylindrical nipple holder 15, and this nipple holder 15 is rotatably supported by a bearing 16, and a gear 17 is attached to the outer end of this nipple holder 15. It is connected to a motor 19 via a drive gear 18, so that the batten 2o in the Niraguru 14 can be rotated via the Niraguru 14. The center line 1 fed into the crosshead 11 is the batten 2
The optical fibers 7 are passed through the center hole of 0, and the fibers 7 are spaced around the center line 1, and the fibers 7 are placed near the outer periphery of the batten 7 so that the required spacing exists between the fibers 7 of each optical fiber 7. Perform positioning through the hole. In this state, each fiber core 7 is twisted by the revolution of the core wire supply 12 and the rotation of the batten 2o, and is supplied to the twisted 90 gold 21 together with the center line 1. In the extruder crosshead 11, when there is a gap between the optical fiber cores 7 as shown in FIG.
A unit filler 8 is extruded into a pipe shape so as to enclose these optical fiber cores 7 all at once, and the phase is detected. The diameter of the unit filler 8 is gradually reduced in the process of being drawn into the twist cap 21, and a part of the unit filler 8 is inserted into the layer formed by these optical fibers 7 through the gaps between the optical fibers 7. Then, the gap between the layer formed by each optical fiber core wire 7 and the center line 1 is filled with a unit filler 8 as shown in FIG. In this way, an optical cable unit 22 with good watertightness as shown in FIG. 7 is obtained. The optical cable unit 22 is passed through a cooling tank 23 to be cooled, and a scraping machine 24 takes advantage of the edge, while a scraping machine 25 inspects the edge.
押出機クロスヘッド11においては、ニラグル14内を
真空引きすると、より一層空隙発生の防止を図れて好適
である。また、換り口金21はユニット充填材8の急冷
を防ぐため加熱しておくことが好ましい。In the extruder crosshead 11, it is preferable to evacuate the inside of the Nilaglu 14 to further prevent the generation of voids. Further, it is preferable that the replacement cap 21 be heated in order to prevent the unit filling material 8 from cooling rapidly.
更に、撚り口金21は、この撚り口金21と目板20間
の距離をt1目板20の心線通過径を 5−
2r、撚りピッチをP1撚り層心径を2Rとしたとき、
r 2πR
p
なる関係を満足させるように位置させると、撚り状態を
妨げず都合がよい。Furthermore, when the distance between the twisting cap 21 and the batten plate 20 is t1, the diameter of the core wire passing through the batten plate 20 is 5-2r, and the twisting pitch is P1, the core diameter of the twisted layer is 2R, r 2πR p It is convenient to position the fibers so as to satisfy the following relationship without disturbing the twisted state.
ユニット充填材8としては、例えば心線検校6と同一材
料であるナイロン、ポリエチレン、溶融状態で低粘度で
充填性に優れたエチレン酢酸ビニル共重合体などが用い
られる。光フアイバ心線7としては、安定性に優れ、伸
び緩和の点で有利なゲル状物質充填型の光フアイバ心線
が好ましい。As the unit filler 8, for example, nylon, polyethylene, which is the same material as the core wire inspection 6, or ethylene-vinyl acetate copolymer, which has low viscosity and excellent filling properties in a molten state, is used. As the optical fiber core wire 7, a gel-like substance-filled optical fiber core wire is preferable because it has excellent stability and is advantageous in terms of elongation relaxation.
第8図は本発明の第2実施例を示したものである。本実
施例では、押出機クロスヘッド11にて、ニラグル14
は回転させず、目板20のみを回転させるようにした例
を示したものである。即ち、目板20はテーパ筒状の目
板ホルダー26に支持させ、この目板ホルダー26を回
転自在に軸受16で支持させ、且つこの目板ホルダー2
6の外端にギア17を取付け、このギア17を駆動ギア
ー、6−
18を介してモータ19に連結し、目板20を回転させ
ることができるようにしている。FIG. 8 shows a second embodiment of the present invention. In this embodiment, in the extruder cross head 11, the Niraglu 14
This shows an example in which only the batten 20 is rotated without being rotated. That is, the batten 20 is supported by a tapered cylindrical batten holder 26, this batten holder 26 is rotatably supported by a bearing 16, and this batten holder 2
A gear 17 is attached to the outer end of 6, and this gear 17 is connected to a motor 19 via a drive gear 6-18, so that the batten 20 can be rotated.
このようにしても、第1実施例と同様の効果を得ること
ができる。Even in this case, the same effects as in the first embodiment can be obtained.
なお、目板20はクロスへラド11内に人ね、ずに、ク
ロスヘッド11の心線入口側に配設することもできる。Incidentally, the batten 20 can also be arranged on the fiber inlet side of the cross head 11 instead of being placed inside the cross head 11.
以上説明したように本発明に係る光ケーブルユニットの
製造方法においては、光フアイバ心線の撚シ合せ過程で
光フアイバ心線相互間に隙間がおいている状態のときユ
ニット充填材の押出し被覆を行うので、光フアイバ心線
相互間の隙間を利用してこれら光フアイバ心線がなす層
の内側の隙間にユニット充填材を埋めることができ、水
密性の優れた光ケーブルユ=レトを容易に製造すること
ができる。As explained above, in the method for manufacturing an optical cable unit according to the present invention, extrusion coating with the unit filler is performed when there is a gap between the optical fiber cores during the twisting process of the optical fiber cores. Therefore, by using the gaps between the optical fiber cores, the unit filler can be filled into the gaps inside the layers formed by these optical fiber cores, making it easy to manufacture optical cable units with excellent watertightness. be able to.
第1図は従来の被横付中心線の横断面図、第2図は光フ
アイバ心線の横断面図、第3図は従来の光ケーブルユニ
ットの横断面図、第4図は本発明に係る光ケーブルユニ
ットの製造工程を示す説明図、第5図は第1実施例の押
出クロスヘッド附近の縦断面図、第6図は第5図A−A
’線横断面図、第7図は第5図B−B’線横断面図、第
8図は第2実施例の押出機クロスヘッド附近の縦断面図
である0
1・・・中心線、7・・・光フアイバ心線、8・・・ユ
ニット充填材、9・・・空隙、10・・・中心線サグラ
イ、11・・・押出機クロスヘッド、12・・・心線サ
グライ、1<、’:、、3・・・タイス、14・・・ニ
ラグル、15・・・ニラグル71 ・
ホルダー、16・・・軸受、17.18・・・ギア、1
9・・・モータ、20・・・目板、21・・・撚り口金
、22・・・光ケーブルユニット。Fig. 1 is a cross-sectional view of a conventional lateral center line, Fig. 2 is a cross-sectional view of an optical fiber core, Fig. 3 is a cross-sectional view of a conventional optical cable unit, and Fig. 4 is a cross-sectional view of a conventional optical cable unit. An explanatory diagram showing the manufacturing process of the optical cable unit, FIG. 5 is a vertical cross-sectional view of the vicinity of the extrusion crosshead of the first embodiment, and FIG. 6 is a diagram showing FIG. 5 A-A.
7 is a cross-sectional view taken along the line B-B' in FIG. 7... Optical fiber core wire, 8... Unit filler, 9... Gap, 10... Center line saglai, 11... Extruder cross head, 12... Core wire saglai, 1<,':,, 3... Tice, 14... Niraguru, 15... Niraguru 71 ・Holder, 16... Bearing, 17.18... Gear, 1
9... Motor, 20... Eye plate, 21... Twisting cap, 22... Optical cable unit.
Claims (1)
を心線相互間に所要の間隔が存在するように位置決めし
た状態で前記各党ファイバ心線を前記中心線のまわりに
回転しつつ撚り口金に供給して撚り合せる際に、前記各
党ファイバ心線の相互間に隙間がおいている位置でこれ
ら光フアイバ心線を包囲するように外周にユニット充填
材を押出し被覆し、前記ユニット充填材が前記撚り口金
側に引きとられて縮径される過程で前記各光フアイバ心
線間の隙間からこれら光フアイバ心線がなす層の内側に
前記ユニット充填材を移動させ、前記各党ファイバ心線
がなす層と前記中心線との間の隙間を前記ユニット充填
材で埋めることを特徴とする光ケーブルユニットの製造
方法。A plurality of optical fiber cores are positioned at intervals around the centerline so that a required spacing exists between the cores, and each of the fiber cores is twisted while rotating around the centerline. When the optical fiber core wires are supplied to the base and twisted together, a unit filler is extruded and coated on the outer periphery so as to surround the optical fiber core wires at positions where there are gaps between the fiber core wires of each party, and the unit filler material is In the process of being drawn to the twisting cap side and being reduced in diameter, the unit filler is moved from the gap between the respective optical fiber cores to the inside of the layer formed by these optical fiber cores, A method for manufacturing an optical cable unit, characterized in that a gap between the layer formed by the fibers and the center line is filled with the unit filler.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57179000A JPS5968708A (en) | 1982-10-14 | 1982-10-14 | Production of optical cable unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57179000A JPS5968708A (en) | 1982-10-14 | 1982-10-14 | Production of optical cable unit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5968708A true JPS5968708A (en) | 1984-04-18 |
JPS648803B2 JPS648803B2 (en) | 1989-02-15 |
Family
ID=16058358
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP57179000A Granted JPS5968708A (en) | 1982-10-14 | 1982-10-14 | Production of optical cable unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5968708A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61163307A (en) * | 1985-01-16 | 1986-07-24 | Fujikura Ltd | Waterproof fiber cable |
JPS623213A (en) * | 1985-06-27 | 1987-01-09 | エスティーシー パブリック リミティド カンパニー | Optical fiber cable and making thereof |
JPS63180816U (en) * | 1987-05-15 | 1988-11-22 | ||
JPH04108191A (en) * | 1990-08-28 | 1992-04-09 | Shinko Kosen Kogyo Kk | Long pitch cable |
JP2012517034A (en) * | 2009-02-03 | 2012-07-26 | ネクストロム・オサケユキテュア | Method and apparatus for coating fiber bundles |
-
1982
- 1982-10-14 JP JP57179000A patent/JPS5968708A/en active Granted
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61163307A (en) * | 1985-01-16 | 1986-07-24 | Fujikura Ltd | Waterproof fiber cable |
JPH0421161B2 (en) * | 1985-01-16 | 1992-04-08 | Fujikura Densen Kk | |
JPS623213A (en) * | 1985-06-27 | 1987-01-09 | エスティーシー パブリック リミティド カンパニー | Optical fiber cable and making thereof |
JPH0650011U (en) * | 1985-06-27 | 1994-07-08 | エスティーシー パブリック リミティド カンパニー | Fiber optic cable |
JPS63180816U (en) * | 1987-05-15 | 1988-11-22 | ||
JPH0453614Y2 (en) * | 1987-05-15 | 1992-12-16 | ||
JPH04108191A (en) * | 1990-08-28 | 1992-04-09 | Shinko Kosen Kogyo Kk | Long pitch cable |
JP2012517034A (en) * | 2009-02-03 | 2012-07-26 | ネクストロム・オサケユキテュア | Method and apparatus for coating fiber bundles |
Also Published As
Publication number | Publication date |
---|---|
JPS648803B2 (en) | 1989-02-15 |
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