JPH01239513A - Production of jelly-packed type optical fiber cable - Google Patents
Production of jelly-packed type optical fiber cableInfo
- Publication number
- JPH01239513A JPH01239513A JP63066842A JP6684288A JPH01239513A JP H01239513 A JPH01239513 A JP H01239513A JP 63066842 A JP63066842 A JP 63066842A JP 6684288 A JP6684288 A JP 6684288A JP H01239513 A JPH01239513 A JP H01239513A
- Authority
- JP
- Japan
- Prior art keywords
- jelly
- optical fiber
- filled
- grooves
- groove
- 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
- 239000013307 optical fiber Substances 0.000 title claims abstract description 32
- 238000004519 manufacturing process Methods 0.000 title claims description 13
- 235000015110 jellies Nutrition 0.000 claims abstract description 59
- 239000008274 jelly Substances 0.000 claims abstract description 59
- 125000006850 spacer group Chemical group 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 239000000835 fiber Substances 0.000 abstract description 4
- 238000003780 insertion Methods 0.000 abstract description 3
- 230000037431 insertion Effects 0.000 abstract description 3
- 238000010030 laminating Methods 0.000 abstract description 2
- 238000003825 pressing Methods 0.000 abstract description 2
- 238000012856 packing Methods 0.000 abstract 3
- 238000004804 winding Methods 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 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
- G02B6/448—Ribbon cables
-
- 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
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は第１図のようなジェリー充填型光ファイバケー
ブルの製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method of manufacturing a jelly-filled optical fiber cable as shown in FIG.
（従来技術）
ジェリー充填型光ファイバケーブルは第１図のように、
中心抗張力体１の外周に設けられた溝付スペーサ２の溝
３内に、光ファイバテープ心線４が積層収納され、その
溝３及び光ファイバテープ心ｉｉ４の層間にジェリー５
が充填されてなる。このジェリー充填型光ファイバケー
ブルの製造方法として、従来は、予め、溝３内に光ファ
イバテープ心線４を積層し、同ＩＭ３内にシース工程の
直前或はシース工程においてジェリーを外部から圧入充
填する方法がある。(Prior art) The jelly-filled optical fiber cable is as shown in Figure 1.
Optical fiber tape cores 4 are stacked and stored in grooves 3 of a grooved spacer 2 provided on the outer periphery of the central tensile strength member 1, and a jelly 5 is placed between the grooves 3 and the layers of the optical fiber tape cores ii4.
is filled with. Conventionally, as a manufacturing method for this jelly-filled optical fiber cable, optical fiber tape cores 4 are laminated in advance in the groove 3, and jelly is press-fitted from the outside into the IM 3 immediately before or during the sheathing process. There is a way to do it.
（従来技術の問題点）
上記の製造方法は、従来からのメタルケーブル製造方法
におけるジェリー充填技術の応用であるため、特に問題
がないと思われていたが、一つの溝３内における光ファ
イバテープ心線４の積層数が複数になると、溝３及び光
ファイバテープ心線４の層間にジェリーが十分に充填さ
れないことがある、それを解消するため従来は、ジェリ
ーの充填圧力を上げているが、このようにすると充填圧
によって光ファイバテープ心線４の水走り特性は改善さ
れる方向にあるが、圧力が限度を越えると同テープ心線
４の損失増という問題が発生する。(Problems with the prior art) The above manufacturing method is an application of the jelly filling technology in the conventional metal cable manufacturing method, so it was thought that there would be no particular problems, but the optical fiber tape in one groove 3 When the number of laminated fibers 4 becomes plural, the jelly may not be sufficiently filled between the grooves 3 and the layers of the optical fiber tape core 4. To solve this problem, conventional methods have increased the filling pressure of the jelly. If this is done, the water running characteristics of the optical fiber ribbon 4 are likely to be improved by the filling pressure, but if the pressure exceeds a limit, the problem of increased loss in the optical fiber ribbon 4 occurs.
このため水走り特性も、損失特性も共に優れた光フアイ
バケーブルを得ることは困難であった。For this reason, it has been difficult to obtain an optical fiber cable with excellent water running characteristics and loss characteristics.
（発明の目的） 本発明の目的は従来技術の前記問題を改善し。(Purpose of the invention) The object of the present invention is to improve the above-mentioned problems of the prior art.
水走り特性と損失特性が共に優れた光フアイバケーブル
を得ることができる製造方法を実現することにある。The object of the present invention is to realize a manufacturing method capable of obtaining an optical fiber cable having excellent water running characteristics and loss characteristics.
（問題点を解決するための手段）
本発明のジェリー充填型光ファイバケーブルの製造方法
は、中心抗張力体ｌを有する溝付きスペーサ２の溝３内
に、光ファイバテープ心線４を積層し、同溝３及び光フ
ァイバテープ心線４にジェリー５を充填してなるジェリ
ー充填型光ファイバケーブルの製造方法において、前記
溝３内にジェリー５を充填した後、同溝３内にジェリー
５と同質のジェリーが塗布されている光ファイバテープ
心Ｖｊ４を内装すると共に同テープ心線４を先に充填さ
れているジェリー５に押え付けて積層し、同テープ心線
４を内装することにより余剰となった余剰ジェリー５ａ
を取り除いた後、再度、溝３内にジェリー５を充填する
ことを特徴とするものである。(Means for Solving the Problems) The method for manufacturing a jelly-filled optical fiber cable of the present invention includes laminating optical fiber tape cores 4 in grooves 3 of a grooved spacer 2 having a central tensile strength member l; In the method for manufacturing a jelly-filled optical fiber cable in which the groove 3 and the optical fiber tape core 4 are filled with jelly 5, the groove 3 is filled with jelly 5, and then the groove 3 is filled with the same material as the jelly 5. By inserting the optical fiber tape core Vj4 coated with jelly, the tape core wire 4 is pressed and laminated on the jelly 5 that has been filled earlier, and the tape core wire 4 is installed inside, thereby creating a surplus. surplus jelly 5a
After removing the jelly 5, the groove 3 is filled with jelly 5 again.
（実施例）
第１図は本発明の製造方法を実施化する装置の説明図で
ある０本発明ではこの装置における溝付スペーサ供給装
ご１０から溝付スペーサ２を供給し、ジェリー充填装置
１１から溝付スペーサ２の溝３内にジェリー５を充填す
る。このとき、溝３内には何もないのでジェリー５は容
易に満３に充填される。(Example) FIG. 1 is an explanatory diagram of an apparatus for implementing the manufacturing method of the present invention. In the present invention, the grooved spacer 2 is supplied from the grooved spacer supply device 10 in this apparatus, and the jelly filling device 11 Fill the groove 3 of the grooved spacer 2 with jelly 5. At this time, since there is nothing in the groove 3, the jelly 5 is easily filled to the full.
次に、ジェリー５が充填された溝３内に、予め同質のジ
ェリーが塗布されている第３図の光ファイバテープ心線
４を光ファイバテープ心線供給ホビン１２から同テープ
心線４を必要枚数供給し。Next, in the groove 3 filled with jelly 5, the optical fiber tape core 4 shown in FIG. Supplied in quantity.
それをテープ挿入口金１３において圧力により強制的に
、ジェリー５が充填されている溝３内に押し付けて積層
する。この場合、光ファイバテープ心線４が供給される
ことにより溝３内のジェリー５の一部（余剰ジェリー５
ａ）が外部に押し出され、テープ挿入口金１３でそぎ落
されて、余剰ジェリー受容器１４に収受される０通常の
場合はこれだけで十分に水走り特性の優れた集合コアが
得られるが、ケーブル外被がＬＡＰシースのような場合
とか、ケーブル外径が大きい場合とか、シースラインを
連続的に行なう場合などは、押え巻装、１１５で押え巻
層６を設けた後、第２のジェリー充填装’ｊ！ｔ ｌ
６により溝３内に再度、ジェリー５を充填する。その後
引き続いてシース押し出しラインエフによりシース７を
被せる。なおシース被覆工程はジェリー充填ラインとは
別ラインにしてもよい。The jelly 5 is forcibly pressed into the groove 3 filled with the jelly 5 by pressure in the tape insertion mouthpiece 13 to be laminated. In this case, a part of the jelly 5 (excess jelly 5
a) is extruded to the outside, scraped off by the tape insertion cap 13, and collected in the surplus jelly receptor 14. In normal cases, this is sufficient to obtain a collective core with excellent water running properties, but the cable When the outer sheath is a LAP sheath, when the outer diameter of the cable is large, or when the sheath line is to be made continuously, etc., the second jelly filling is performed after the presser wrapping layer 6 is provided in step 115. Sou'j! t l
6, the groove 3 is again filled with jelly 5. Subsequently, the sheath 7 is covered by a sheath extrusion line F. Note that the sheath covering step may be performed on a separate line from the jelly filling line.
（発明の効果） 本発明の製造方法によれば次のような効果がある。(Effect of the invention) The manufacturing method of the present invention has the following effects.
（１）ジェリー５の充填に圧力を加えないので、ジェリ
ー充填時に光ファイバテープ心線４に圧力が加わらず損
失が増加しない。(1) Since no pressure is applied when filling the jelly 5, no pressure is applied to the optical fiber tape core 4 during filling of the jelly, and loss does not increase.
（２）ジェリー５の充填に圧力を加えなくともジェリー
５が光ファイバテープ心線４の層間に４−分に充填され
るので、水走り特性の優れた光フアイバケーブルが得ら
れる。(2) Since the jelly 5 can be filled between the layers of the optical fiber tape core 4 within 4 minutes without applying pressure during filling with the jelly 5, an optical fiber cable with excellent water running properties can be obtained.
第１図は本発明の製造方法を実施化する装置の一例を示
す説明図、第２図は同方法により得られる光フアイバケ
ーブルの断面図、第３図は光ファイバテープ心線の一例
を示す説明図である。
ｌは中心抗張力体
２は溝付スペーサ
３は溝
４は光ファイバテープ心線
５はジェリー
５ａは余剰ジェリーFIG. 1 is an explanatory diagram showing an example of a device that implements the manufacturing method of the present invention, FIG. 2 is a cross-sectional view of an optical fiber cable obtained by the same method, and FIG. 3 is an example of an optical fiber ribbon. It is an explanatory diagram. l is the center tensile strength member 2 is the grooved spacer 3 is the groove 4 is the optical fiber tape core 5 is the jelly 5a is the excess jelly
Claims (1)
ファイバテープ心線４を積層し、同溝３及び光ファイバ
テープ心線４にジェリー５を充填してなるジェリー充填
型光ファイバケーブルの製造方法において、前記溝３内
にジェリー５を充填した後、同溝３内にジェリー５と同
質のジェリーが塗布されている光ファイバテープ心線４
を内装すると共に同テープ心線４を先に充填されている
ジェリー５に押え付けて積層し、同テープ心線４を内装
することにより余剰となった余剰ジェリー５ａを取り除
いた後、再度、溝３内にジェリー５を充填するようにし
たことを特徴とするジェリー充填型光ファイバケーブル
の製造方法。A jelly-filled optical fiber cable in which an optical fiber tape core 4 is laminated in a groove 3 of a grooved spacer 2 having a central tensile strength member 1, and the groove 3 and the optical fiber tape core 4 are filled with jelly 5. In the manufacturing method, after the groove 3 is filled with jelly 5, the optical fiber tape core 4 is coated with jelly of the same quality as the jelly 5.
At the same time, the tape core wire 4 is pressed and laminated on the jelly 5 that was filled earlier, and after removing the excess jelly 5a that is left over by inserting the tape core wire 4, the groove is filled again. A method for manufacturing a jelly-filled optical fiber cable, characterized in that jelly 5 is filled in jelly 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63066842A JPH01239513A (en) | 1988-03-19 | 1988-03-19 | Production of jelly-packed type optical fiber cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63066842A JPH01239513A (en) | 1988-03-19 | 1988-03-19 | Production of jelly-packed type optical fiber cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01239513A true JPH01239513A (en) | 1989-09-25 |
Family
ID=13327504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63066842A Pending JPH01239513A (en) | 1988-03-19 | 1988-03-19 | Production of jelly-packed type optical fiber cable |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01239513A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5638478A (en) * | 1994-07-06 | 1997-06-10 | The Furukawa Electric Co., Ltd. | Optical fiber cable having a grooved spacer formed with one or more SZ-spiral grooves on its outer circumference along the longitudinal direction of the spacer the inverting angle of each groove being at least 180° |
-
1988
- 1988-03-19 JP JP63066842A patent/JPH01239513A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5638478A (en) * | 1994-07-06 | 1997-06-10 | The Furukawa Electric Co., Ltd. | Optical fiber cable having a grooved spacer formed with one or more SZ-spiral grooves on its outer circumference along the longitudinal direction of the spacer the inverting angle of each groove being at least 180° |
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