JPH04122906A - Method and device for filling waterproof material in optical fiber cable - Google Patents
Method and device for filling waterproof material in optical fiber cableInfo
- Publication number
- JPH04122906A JPH04122906A JP2243630A JP24363090A JPH04122906A JP H04122906 A JPH04122906 A JP H04122906A JP 2243630 A JP2243630 A JP 2243630A JP 24363090 A JP24363090 A JP 24363090A JP H04122906 A JPH04122906 A JP H04122906A
- Authority
- JP
- Japan
- Prior art keywords
- spacer
- filling
- optical fiber
- holder
- waterproof material
- 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
- 239000000463 material Substances 0.000 title claims abstract description 61
- 239000013307 optical fiber Substances 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims description 12
- 125000006850 spacer group Chemical group 0.000 claims abstract description 60
- 238000003860 storage Methods 0.000 claims abstract description 51
- 238000004078 waterproofing Methods 0.000 claims abstract description 40
- 230000002093 peripheral effect Effects 0.000 claims abstract description 9
- 238000004804 winding Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 208000032765 Device extrusion Diseases 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 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
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/44384—Means specially adapted for strengthening or protecting the cables the means comprising water blocking or hydrophobic materials
-
- 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)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
Abstract
Description
本発明は、光ファイバケーブルの防水材充填方法および
防水材充填装置に関するものである。The present invention relates to a waterproofing material filling method and a waterproofing material filling apparatus for optical fiber cables.
周知のように、光ファイバケーブルは光ファイバ心線を
複数条寄せ集めたもので構成されるか、光ファイバ心線
に側圧等の大きな外力か加わると、光ファイバ心線に微
小な曲かり（マイクロベンディング）か生じ、伝送損失
か増加する。そこで、このようなマイクロベンディング
か生じないように、ケーブルの中心にプラスチインク材
料から成るスペーサを配設し、このスペーサの外周面に
長手方向に形成した収納溝に光ファイバ心線を収納する
ようにしたスペーサ形光ファイバケーブルが知られてい
る。
第４図は、このような光ファイバケーブルの断面構造を
示すものである０図において、光ファイバケーブル３０
はその中心に抗張力体３１が配設されている。この抗張
力体３１の外側に断面か円形上のスペーサ３２が設けら
れている。このスペーサ３２の外周面には長手方向に断
面か矩形状の収納溝３３が複数条（図においては、６条
）形成され、各収納溝３３には光ファイバ心線３４が挿
入されている。
このようにして収納溝３３に挿入された光ファイバ心線
３４は、所定の防水性能を得るために収納３３との隙間
に粘着性を持ったパラフィン、オレフィン、シリコン等
のゼリー状防水材３５か充填されることにより防水処理
が施される。さらに、スペーサ３２の外周に押え巻きテ
ープ３６を巻いた後、外被３７で被覆されている。
第５図は、このような光ファイバケーブルの製造工程を
示すブロック図であり、スペーサ供給ボビン４０から引
き出されたスペーサ３２は、撚り口４１に導かれる。こ
の撚り口４１には、光ファイバ心線供給ボビン４２−１
〜４２−６から引き出された６条の光ファイバ心線３４
か供給されており、スペーサ３２の外周面に形成した収
納溝３３に光ファイバ心線３４を挿入しつつ撚り合わせ
、この後、ゼリー状防水材３５を充填装置４３で光ファ
イバ心線３４と収納溝との隙間に充填し、さらにテープ
供給リール４４から供給される押え巻きテープ３６を巻
き、巻き取りボビン４５に巻き取るようになって−いる
。
なお、外被３７は次の工程で被覆される。
第６図は、充填装置４３出口部の１ｉＩ造を示す断面図
であり、入口から出口方向へ通過するスペーサ３２の外
径より大きな内径を有する筒体で構成され、側面部には
ゼリー状防水材３５を筒内に供給する防水材供給口４３
ｂが設けられている。また、出口には、スペーサ３２の
外径より僅かに大きな内径を有する絞り口金４３ａが設
けられ、光ファイバ心線３４を挿入した収納溝３３に筒
内通過時に充填した防水材のうち外表面に溢れ出た防水
材を掻き落し、スペーサ３２の外表面を整えるようにな
っている。As is well known, an optical fiber cable is made up of a plurality of optical fibers gathered together, or if a large external force such as lateral pressure is applied to the optical fiber, the optical fiber will bend slightly ( microbending), which increases transmission loss. Therefore, in order to prevent such microbending, a spacer made of plastic ink material is placed in the center of the cable, and the optical fiber is stored in a storage groove formed longitudinally on the outer circumferential surface of this spacer. A spacer type optical fiber cable is known. FIG. 4 shows the cross-sectional structure of such an optical fiber cable.
A tensile strength member 31 is disposed at its center. A spacer 32 having a circular cross section is provided on the outside of this tensile strength member 31. A plurality of storage grooves 33 (six grooves in the figure) each having a rectangular cross section are formed in the longitudinal direction on the outer peripheral surface of the spacer 32, and an optical fiber core 34 is inserted into each storage groove 33. The optical fiber core wire 34 inserted into the storage groove 33 in this way is coated with a jelly-like waterproofing material 35 such as paraffin, olefin, silicone, etc. with adhesive properties in the gap between it and the storage 33 in order to obtain a predetermined waterproof performance. Waterproofing is achieved by filling the container. Furthermore, after wrapping a pressure tape 36 around the outer periphery of the spacer 32, the spacer 32 is covered with a jacket 37. FIG. 5 is a block diagram showing the manufacturing process of such an optical fiber cable, in which the spacer 32 pulled out from the spacer supply bobbin 40 is guided to the twisting port 41. This twist opening 41 has an optical fiber core supply bobbin 42-1.
~6 optical fiber core wires 34 pulled out from 42-6
The optical fiber core wires 34 are inserted into the storage groove 33 formed on the outer circumferential surface of the spacer 32 and twisted together, and then the jelly-like waterproofing material 35 is stored together with the optical fiber core wires 34 in a filling device 43. The gap between the tape and the groove is filled, and the pressure winding tape 36 supplied from the tape supply reel 44 is further wound and wound onto the winding bobbin 45. Note that the outer cover 37 will be covered in the next step. FIG. 6 is a sectional view showing the 1iI structure of the outlet part of the filling device 43, which is composed of a cylindrical body having an inner diameter larger than the outer diameter of the spacer 32 passing from the inlet to the outlet, and has a jelly-like waterproof material on the side surface. Waterproof material supply port 43 for supplying material 35 into the cylinder
b is provided. Further, a diaphragm cap 43a having an inner diameter slightly larger than the outer diameter of the spacer 32 is provided at the outlet, and the outer surface of the waterproofing material filled into the storage groove 33 into which the optical fiber core 34 is inserted when passing through the cylinder. The overflowing waterproof material is scraped off to prepare the outer surface of the spacer 32.
上記従来の充填方法において、防水材３５はある程度の
粘着性を持っているので、この防水材を充填することに
より光ファイバ心線３４は収納溝３３に外れない程度に
も保持されている。
しかしながら、上記従来の充填方法においては、光ファ
イバ心線３４をスペーサ３２の挿入溝３３に挿入した後
に防水材３５を充填しているので、挿入直後から防水材
３５が充填されるまでの間に、距離のある場合や、より
速度を高速化する場合には、スペーサ３２の振動等によ
り収納溝３３がら光ファイバ心線か外れやすい、また、
光ファイバ心線３４が障害になって収納１１３３の底部
まで防水材３５が充分に充填されない。このため、防水
材３５の充填率が低くなり、気泡が残留するなどして防
水能力の低下が懸念されるという問題があった。
本発明はこのような問題を解決するためになされたもの
で、防水材を充分に充填することができる光ファイバゲ
ーブルの防水材充填方法および防水材充填装置を提供す
ることを目的としている。In the conventional filling method described above, since the waterproofing material 35 has a certain degree of adhesiveness, by filling the waterproofing material, the optical fiber core 34 is held in the storage groove 33 to the extent that it does not come off. However, in the conventional filling method described above, the waterproof material 35 is filled after the optical fiber core wire 34 is inserted into the insertion groove 33 of the spacer 32. , when there is a long distance or when the speed is increased, the optical fiber is likely to come off from the storage groove 33 due to vibration of the spacer 32, etc.
The optical fiber core wire 34 becomes an obstacle, and the waterproofing material 35 is not sufficiently filled to the bottom of the storage 1133. For this reason, there is a problem in that the filling rate of the waterproofing material 35 becomes low and air bubbles remain, which may lead to a decrease in waterproofing ability. The present invention was made to solve such problems, and an object of the present invention is to provide a waterproofing material filling method and a waterproofing material filling device for an optical fiber cable, which can sufficiently fill the waterproofing material.
上記目的を達成するために、本発明の光ファイバケーブ
ルの防水材充填方法は、断面か円形状のスペーサの外周
面に長手方向に形成した複数条の収納溝の底部に防水材
を充填する第１の防水材充填工程と、前記防水材を充填
した前記収納溝に光ファイバ心線を挿入し、撚り合わせ
る撚り工程と、撚り合わせ後の光りファイバ心線の上方
から防水材を充填する第２の防水材充填工程とから構成
しまた、本発明の防水材充填装置は、筒内を断面円形状
のスペーサか通過可能なように形成され、前記スペーサ
の出口側内周面には前記スペーサの外周面に長手方向に
形成した複数条の収納溝のうち１つに係合する突起が形
成されたホルダと、このホルダを円周方向に回動可能に
支持する支持部材と、前記ホルダと一体化して支持され
、該ホルダの出口から出力されるスペーサの前記収納溝
のそれぞれに係合し、該収納溝に防水材を充填するパイ
プ状部材とから構成した。In order to achieve the above object, the method for filling a waterproofing material in an optical fiber cable of the present invention includes filling the bottom of a plurality of storage grooves formed in the longitudinal direction on the outer peripheral surface of a spacer having a circular cross section with a waterproofing material. a second step of filling the waterproof material from above the twisted optical fiber cores; The waterproofing material filling device of the present invention is formed so that a spacer having a circular cross section can pass through the inside of the cylinder, and the inner circumferential surface of the spacer on the outlet side is provided with the spacer. a holder formed with a protrusion that engages with one of a plurality of storage grooves formed in the longitudinal direction on the outer peripheral surface; a support member that supports the holder so as to be rotatable in the circumferential direction; and a support member that is integral with the holder. and a pipe-shaped member that is supported by the holder and engaged with each of the storage grooves of the spacer output from the outlet of the holder, and fills the storage grooves with a waterproof material.
【作用］
上記方法によれば、光ファイバ心線をスペーサの収納溝
に挿入して撚り合わせる前に、第１の防水材充填工程で
スペーサの収納溝の底部に防水材を充填し、この後に光
ファイバ心線分挿入して撚り合わせ、ｌｔ後に撚り合わ
せた後の光ファイバ心線の上方から防水材を再度充填す
る。したがって、収納溝の底部にまで防水材が充分に充
填されるようになり、防水能力も向上するうえ、光りフ
ァイバ心線の挿入直後から光ファイバ心線を収納溝に保
持する力が充分なものとなる。この結果、スピードの高
速ｆヒによる振動等で光ファイバ心線が収納溝から外れ
ることもなくなる。
【実施例】
以下、図示する実施例に基づいて本発明の光ファイバケ
ーブルの防水材充填方法および防水材充填装置について
説明する。
第１図は本発明の防水材充填方法を適用した光ファイバ
ゲープルの製造工程を示す図であり、撚り口４１の上流
側に第１の充填装置４６を設け、光ファイバ心線４２−
１〜４２−６を撚り口４１で撚り合わせる前に、スペー
サ３２の収納？４３３の底部に防水材３５を予め所定量
充填しておくようにしたことに特徴がある。
第２図は第１の充填装置４６の補遺を示す縦断面図、第
３図はこの第１の充填装置４６をスペーサ３２の出口側
から見たときの正面図である。図において、第１の充填
装置４６は筒内を断面円形状のスペーサ３２か通過可能
なように形成され、前記スペーサ３２の出口側内周面に
はスペーサ３２の外周面に長平方向に形成した複数条の
収納溝３３のうち１つに係合する突起４７が形成された
ホルタ４８と、このホルタ４Ｓを筒内に収納した状態で
円周方向に回動可能に支持する筒状の支持部材４つと、
前記ホルタ４８の端面にスペーサ３２の通過方向と平行
な軸上で回動可能に支持さｉ＝、該ホルタ４８の出口か
ら出力されるスペーサ３２の収納溝３３のそれぞれに係
合し、該収納溝３３に防水材３５を充填するパイプ状部
材５０とからなっている。
ホルダ４８の外周面と支持部材４つの内周面との間には
、防水材供給口から供給される防水材３５を収納する収
納室５１が確保されている。この収納室５１はホルタ４
８の一端面に穿設した連通孔５２を通じてホルタ４８の
内側に形成された収納室５３に連通し、ホルタ４８の回
動角度に関係なく収納室５３に防水材３５を一定速度で
供給可能に構成されている。
前記パイプ状部材５０は、光ファイバ心線４２１〜４２
−６の条数に対応して６本のパイプ状部材５０−１〜５
０−６で構成され、ホルタ４Ｓの他端面に回動可能に取
り付けられている。そして、その一端はホルダ４８の収
納室５３に通じ、他端はそれぞれ対応する収納溝３３に
係合可能になっている。
なお、ホルダ４８のスペーサ出口側の内径は、スペーサ
３２の外径より僅かに大きく、スペーサ３２の外周面か
ら溢れ出た防水材３５を掻き落とし、スペーサ３２の外
周面を整えるようになっている。
このように構成された製造工程において、スペーサ供給
ボヒン４０がら引き出されたスペーサ３２は、第１の充
填装置４６に導かれ、この第１の充填装置４６を通過し
な後に撚り口４１へ供給される。この際に、スペーサ３
２の外周面に形成した収納溝３３の１つかホルタ４８の
内周面に形成した突起４７に係合した状態て゛ホルダ４
８の内側を通過するので、スペーサ３２の進行に伴い、
突起４７は収納溝３３との係合関係を保つように時計回
りと反時計回りに回動する方向の力を受ける。
これにより、スペーサ３２は時計回りと反時計回りに回
動しなからスペーサ３２の進行に追従する。
これによって、スペーサ３２の各収納溝３３とパイプ状
部材５０−１〜５０−６とか１対１０関係に維持された
状態て゛スペーサ３２がホルダ４８の内側を通過するよ
うになり、この通過の際に各収納溝３３の底部には対応
するパイプ状部材５０１〜５０−６がら所定量の防水材
３′５が充填される。
このようにして収納溝３３の底部に防水材３５が充填さ
れたスペーサ３２は撚り口４１に導かれる。そして、従
来と同様に、光ファイバ心線供給ボビン４２−１〜４２
−６から引き出された６条の光ファイバ心線３４をスペ
ーサ３２の収納溝３３に挿入しつつ撚り合わせ、この後
、ゼリー状防水材３５を第２の充填装置４３て光ファイ
バ心線３４の上方から再度充填し、さらにテープ供給リ
ル４４から供給される押え巻きテープ３６を巻き、巻き
取りボビン４５に巻き取る。
【発明の効果］
本発明の光ファイバケーブルの防水材充填方法によれば
、光ファイバ心線をスペーサの収納溝に挿入して撚り合
わせる前に、第１の防水材充填工程でスペーサの収納溝
の底部に防水材を充填し、二の後に光ファイバ心線を挿
入して撚り合わせ、最後に撚り合わせた後の光ファイバ
心線の上方から防水材を再度充填するので２収納溝の底
部にまで防水材が充分に充填されるようになり、光ファ
イバ心線を収納溝に保持する力が充分なものとなる。こ
の結果、スピードの高速化による振動等で光ファイバ心
線が収納溝から外れることもなくなる。また、未充填の
隙間か少なくなるので、防水性能ら向上り、信頼性に優
れた光ファイバケーブルを製造できるという効果が得ら
れる。
また、本発明の防水材充填装置によれば、スペーサの収
納溝に追従してパイプ状部材の円周方向の位置か回動す
るので、完全自動で各収納溝に防水材を必要量たけ充填
することができる。[Function] According to the above method, before inserting the optical fiber core into the storage groove of the spacer and twisting it, the waterproofing material is filled in the bottom of the storage groove of the spacer in the first waterproofing material filling step, and after this, The optical fibers are inserted and twisted together, and after lt, the waterproofing material is again filled from above the twisted optical fibers. Therefore, the waterproofing material is sufficiently filled to the bottom of the storage groove, improving the waterproofing ability, and there is sufficient force to hold the optical fiber in the storage groove immediately after inserting the optical fiber. becomes. As a result, the optical fiber core will not come off the storage groove due to vibrations caused by the high speed. Embodiments The method and apparatus for filling a waterproof material in an optical fiber cable of the present invention will be described below based on the illustrated embodiments. FIG. 1 is a diagram showing the manufacturing process of an optical fiber gaple to which the waterproofing material filling method of the present invention is applied.
Before twisting 1 to 42-6 at the twisting opening 41, store the spacer 32? 433 is characterized in that a predetermined amount of waterproofing material 35 is filled in advance. FIG. 2 is a longitudinal sectional view showing an additional part of the first filling device 46, and FIG. 3 is a front view of the first filling device 46 when viewed from the exit side of the spacer 32. In the figure, the first filling device 46 is formed so that a spacer 32 having a circular cross section can pass through the inside of the cylinder, and a spacer 32 formed in an elongated direction on the outer peripheral surface of the spacer 32 is formed on the inner peripheral surface of the outlet side of the spacer 32. A holter 48 formed with a protrusion 47 that engages with one of the plurality of storage grooves 33, and a cylindrical support member that supports the holter 4S so as to be rotatable in the circumferential direction while being stored in the cylinder. Four and
It is rotatably supported on the end face of the holter 48 on an axis parallel to the passing direction of the spacer 32, and engages with each of the storage grooves 33 of the spacer 32 output from the outlet of the holter 48, and It consists of a pipe-shaped member 50 that fills the groove 33 with a waterproof material 35. A storage chamber 51 is provided between the outer circumferential surface of the holder 48 and the inner circumferential surfaces of the four support members to accommodate the waterproof material 35 supplied from the waterproof material supply port. This storage chamber 51 is
It communicates with the storage chamber 53 formed inside the holter 48 through a communication hole 52 bored in one end surface of the holter 48, so that the waterproof material 35 can be supplied to the storage chamber 53 at a constant speed regardless of the rotation angle of the holter 48. It is configured. The pipe-shaped member 50 includes optical fiber core wires 421 to 42.
-6 pipe-like members 50-1 to 5 corresponding to the number of threads 6
0-6, and is rotatably attached to the other end surface of the holter 4S. One end thereof communicates with the storage chamber 53 of the holder 48, and the other end can be engaged with the corresponding storage groove 33, respectively. Note that the inner diameter of the holder 48 on the spacer outlet side is slightly larger than the outer diameter of the spacer 32, and is designed to scrape off the waterproofing material 35 overflowing from the outer circumferential surface of the spacer 32 and to prepare the outer circumferential surface of the spacer 32. . In the manufacturing process configured as described above, the spacer 32 pulled out from the spacer supply bohin 40 is guided to the first filling device 46, and after passing through the first filling device 46, it is supplied to the twisting port 41. Ru. At this time, spacer 3
When the holder 4 is engaged with one of the storage grooves 33 formed on the outer circumferential surface of the holder 2 or with the protrusion 47 formed on the inner circumferential surface of the holder 48
8, so as the spacer 32 advances,
The protrusion 47 receives forces that rotate it clockwise and counterclockwise so as to maintain engagement with the storage groove 33. As a result, the spacer 32 rotates clockwise and counterclockwise and follows the progress of the spacer 32. As a result, the spacer 32 passes inside the holder 48 while maintaining a 1:10 relationship between each storage groove 33 of the spacer 32 and the pipe-shaped members 50-1 to 50-6, and during this passage, The bottom of each storage groove 33 is filled with a predetermined amount of waterproof material 3'5 in the corresponding pipe-shaped members 501 to 50-6. The spacer 32 whose bottom portion of the storage groove 33 is filled with the waterproof material 35 in this manner is guided to the twist opening 41. Then, as in the conventional case, the optical fiber core supply bobbins 42-1 to 42
The six optical fiber core wires 34 pulled out from -6 are inserted into the storage groove 33 of the spacer 32 and twisted together, and then the jelly-like waterproofing material 35 is applied to the second filling device 43 and the optical fiber core wires 34 are twisted together. The tape is again filled from above, and the pressure winding tape 36 supplied from the tape supplying rill 44 is wound, and the winding tape 36 is wound onto the winding bobbin 45. Effects of the Invention According to the waterproofing material filling method for optical fiber cables of the present invention, before the optical fiber core wires are inserted into the spacer storage grooves and twisted, the spacer storage grooves are filled in the first waterproofing material filling step. Fill the bottom of the storage groove with a waterproofing material, then insert the optical fiber cores and twist them together, and finally fill the waterproofing material again from above the twisted optical fibers, so that the bottom of the storage groove 2. The waterproof material is fully filled up to the point where the optical fiber core is held in the storage groove with sufficient force. As a result, the optical fiber core does not come off the storage groove due to vibrations caused by the increased speed. Furthermore, since the number of unfilled gaps is reduced, the waterproof performance is improved and an optical fiber cable with excellent reliability can be manufactured. Furthermore, according to the waterproofing material filling device of the present invention, since the circumferential position of the pipe-shaped member rotates in accordance with the storage groove of the spacer, the necessary amount of waterproofing material is filled into each storage groove completely automatically. can do.
第１図は本発明の防水材充填方法を適用した光ファイバ
ケーブルの製造工程を示す図、第２図は第１の充填装置
の構造を示す縦断面図、第３図は第１の充填装置をスペ
ーサの出口側から見たときの正面図、第４図は光ファイ
バケーブルの断面構造を示す断面図、第５図は光ファイ
バゲープルの従来の製造工程を示すブロンク図、第６図
は第２の充填装置の構造を示す断面図である。
３０・・・・・・・・・・・・・・・・・・・・・・・
・・・・・・・・・光ファイバケーブル３２・・・・・
・・・・・・・・・・・・・・・・・・・・・・・・・
・・・・・・・・・・・・・・・・・スペーサ３３・・
・・・・・・・・・・・・・・・・・・・・・・・・・
・・・・・・・・・・・・・・・・・・・収納消光ファ
イバ心線
防水材
押え巻きテープ
外被
撚り口
・・・・・充填装置（第２の充填装置）第１の充填装置
突起
ホルダ
支持部材
・・・ ・・・・・・・・・・・・・パイプ状部材矢崎
総業株式会社
小 林 保
大 塚 明 博
４３ ・・・・・・・・・・・・・・・・５０−１ ＼
５０−６
特 許 出 願 人Fig. 1 is a diagram showing the manufacturing process of an optical fiber cable to which the waterproofing material filling method of the present invention is applied, Fig. 2 is a longitudinal cross-sectional view showing the structure of the first filling device, and Fig. 3 is the first filling device. Fig. 4 is a cross-sectional view showing the cross-sectional structure of the optical fiber cable, Fig. 5 is a bronch diagram showing the conventional manufacturing process of an optical fiber gaple, and Fig. 6 is a front view when viewed from the exit side of the spacer. FIG. 3 is a cross-sectional view showing the structure of the second filling device. 30・・・・・・・・・・・・・・・・・・・・・・・・
......Optical fiber cable 32...
・・・・・・・・・・・・・・・・・・・・・・・・
・・・・・・・・・・・・・・・・・・Spacer 33...
・・・・・・・・・・・・・・・・・・・・・・・・
・・・・・・・・・・・・・・・・・・Storage quenching fiber core waterproof material Press winding tape outer sheath Twisting port・・・Filling device (second filling device) 1st Filling device protrusion holder support member... Pipe-shaped member Yazaki Sogyo Co., Ltd. Yasuhiro Kobayashi Akihiro Tsuka 43... ...50-1 \
50-6 Patent applicant
Claims (2)
成した複数条の収納溝の底部に防水材を充填する第１の
防水材充填工程と、前記防水材を充填した前記収納溝に
光ファイバ心線を挿入し、撚り合わせる撚り工程と、撚
り合わせ後の光りファイバ心線の上方から防水材を充填
する第２の防水材充填工程とから成る光ファイバケーブ
ルの防水材充填方法。(1) A first waterproofing material filling step of filling the bottom of a plurality of storage grooves formed in the longitudinal direction on the outer peripheral surface of a spacer with a circular cross section with a waterproofing material, and filling the storage grooves filled with the waterproofing material. A method for filling a waterproofing material in an optical fiber cable, comprising a twisting step of inserting and twisting optical fibers, and a second waterproofing material filling step of filling the waterproofing material from above the twisted optical fibers.
形成され、前記スペーサの出口側内周面には前記スペー
サの外周面に長手方向に形成した複数条の収納溝のうち
１つに係合する突起が形成されたホルダと、このホルダ
を円周方向に回動可能に支持する支持部材と、前記ホル
ダと一体化して支持され、該ホルダの出口から出力され
るスペーサの前記収納溝のそれぞれに係合し、該収納溝
に防水材を充填するパイプ状部材とから成る防水材充填
装置。(2) A spacer having a circular cross section is formed to be able to pass through the inside of the cylinder, and one of the plurality of storage grooves formed in the longitudinal direction on the outer peripheral surface of the spacer is formed on the inner circumferential surface of the exit side of the spacer. a holder formed with a protrusion that engages with the holder; a support member that rotatably supports the holder in a circumferential direction; and a spacer that is integrally supported with the holder and outputted from an outlet of the holder. A waterproof material filling device comprising a pipe-shaped member that engages with each of the grooves and fills the storage groove with waterproof material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2243630A JPH04122906A (en) | 1990-09-13 | 1990-09-13 | Method and device for filling waterproof material in optical fiber cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2243630A JPH04122906A (en) | 1990-09-13 | 1990-09-13 | Method and device for filling waterproof material in optical fiber cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04122906A true JPH04122906A (en) | 1992-04-23 |
Family
ID=17106683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2243630A Pending JPH04122906A (en) | 1990-09-13 | 1990-09-13 | Method and device for filling waterproof material in optical fiber cable |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04122906A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117590534A (en) * | 2023-11-14 | 2024-02-23 | 浙江汉维通信器材有限公司 | Lightning protection ADSS lead-in optical cable stranding and cabling system and method |
-
1990
- 1990-09-13 JP JP2243630A patent/JPH04122906A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117590534A (en) * | 2023-11-14 | 2024-02-23 | 浙江汉维通信器材有限公司 | Lightning protection ADSS lead-in optical cable stranding and cabling system and method |
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