JPH01308109A - Small diameter connecting section forming method for coaxial cable - Google Patents
Small diameter connecting section forming method for coaxial cableInfo
- Publication number
- JPH01308109A JPH01308109A JP13562288A JP13562288A JPH01308109A JP H01308109 A JPH01308109 A JP H01308109A JP 13562288 A JP13562288 A JP 13562288A JP 13562288 A JP13562288 A JP 13562288A JP H01308109 A JPH01308109 A JP H01308109A
- Authority
- JP
- Japan
- Prior art keywords
- coaxial
- connection
- coaxial core
- cable
- outer conductor
- 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
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000004020 conductor Substances 0.000 claims abstract description 47
- 238000009413 insulation Methods 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 230000003292 diminished effect Effects 0.000 abstract 1
- 229910000679 solder Inorganic materials 0.000 description 8
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 4
- 229920000742 Cotton Polymers 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000002655 kraft paper Substances 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Landscapes
- Processing Of Terminals (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は、障害が発生した同軸ケーブルに対し引き替え
る必要が生じた際、または他のルートへ移設する必要が
生じた際に、布設管路長より短い２本の同軸ケーブル相
互を接続し、接続部を含めて同軸ケーブルを前記官略内
に布設することができるようにするための同軸ケーブル
の細径接続部形成方法に関するものである。[Detailed Description of the Invention] <Industrial Application Field> The present invention can be used to replace installed coaxial cables when a faulty coaxial cable has occurred or when it needs to be relocated to another route. This invention relates to a method for forming a small-diameter connecting portion of a coaxial cable, for connecting two coaxial cables shorter than the path length, and allowing the coaxial cable including the connecting portion to be laid within the above-mentioned public space. .
〈従来の技術〉
従来、同軸ケーブル内にある複数の同軸心の接続は、以
下に述へる手順に従って行なわれている。すなわち第４
図に示すように、同軸心１の中心導体２および外部導体
３を接続するため、同軸心１相互を接続可能な長さに切
断した後、外部導体スリーブ４を挿入し、外部導体補強
用内部カラー５を外部導体３の内表面に接するように挿
入し、さらに外部導体補強用外部カラー６を外部導体３
の外表面に接するように挿入して両カラー５，６により
外部導体３を挾み込む。そして中心導体２相互が数鴫離
れるように中心導体２を切断し、中心導体スリーブ７を
中心導体２にかしめて接続した後、外部導体スリーブ４
を前記外部カラー６が隠れるまで移動させ、このスリー
ブ４の両端を３力所程度かしめて外部カラー６と一体化
させることにより外部導体３相互を接続する。接続を完
了した同軸心１には、隣接する同軸心との絶縁のため、
外部導体スリーブ４の上にＰｖＣテープ８が巻かれる。<Prior Art> Conventionally, a plurality of coaxial cores in a coaxial cable are connected according to the following procedure. That is, the fourth
As shown in the figure, in order to connect the center conductor 2 and outer conductor 3 of the coaxial core 1, after cutting the coaxial cores 1 to a length that can be connected to each other, an outer conductor sleeve 4 is inserted, and an inner conductor for reinforcing the outer conductor is inserted. The collar 5 is inserted so as to be in contact with the inner surface of the outer conductor 3, and the outer collar 6 for reinforcing the outer conductor is inserted into the outer conductor 3.
The outer conductor 3 is inserted so as to be in contact with the outer surface of the outer conductor 3, and the outer conductor 3 is sandwiched between the collars 5 and 6. Then, the center conductor 2 is cut so that the center conductors 2 are separated from each other by a few inches, and the center conductor sleeve 7 is caulked and connected to the center conductor 2, and then the outer conductor sleeve 7 is connected to the center conductor 2.
The sleeve 4 is moved until the outer collar 6 is hidden, and both ends of the sleeve 4 are caulked with about three force points to integrate with the outer collar 6, thereby connecting the outer conductors 3 to each other. After the connection is completed, coaxial core 1 is insulated from the adjacent coaxial core.
A PvC tape 8 is wrapped over the outer conductor sleeve 4.
かかる同軸心の接続作業を順次おこなうため、複数の同
軸心１を第５図に示すように配置する。つまり、外部導
体スリーブ４上にＰｖＣテープ８を巻くため、同軸心１
相互間に約２〜３ ｃｍの間隔を必要とする。このため
、約１ ｃｍの外径を有する同軸心１（本実施例では８
心）の接続部は全体で約１０ｃｍの太さとなる。さらに
、これらの接続が終了後、接続部全体にクラ７１−紙、
綿テープを巻き、接続部を保護する。In order to perform such coaxial core connection work sequentially, a plurality of coaxial cores 1 are arranged as shown in FIG. 5. In other words, in order to wrap the PvC tape 8 on the outer conductor sleeve 4, the coaxial core 1
Requires a spacing of about 2-3 cm between each other. For this reason, a coaxial core 1 having an outer diameter of approximately 1 cm (in this example, a coaxial core 1 having an outer diameter of
The total thickness of the connecting part (heart) is approximately 10 cm. Furthermore, after these connections are completed, cover the entire connection area with 71-paper,
Wrap cotton tape to protect the connection.
同軸心が８本実装されている本実施例のような同軸ケー
ブルにおける接続部全体の保護および気密の確保は、第
６図に示す要領で、１２０ ｍｍφの鉛管９を使用して
以下のように行なわれる。すなわち木槌で鉛管９の両端
をケーブル外被径まで細め、鉛工すべき箇所のケーブル
外被および鉛管９の細めた部分に半田の密着度を高める
ため、あらがしめスズ成分の多い半田で表面をコーティ
ング（半田メツキ）する。ついでトーチランプを用いて
両者を鉛で接続することにより鉛工部１ｏを形成する。To protect the entire connection part and ensure airtightness of a coaxial cable like this example in which eight coaxial cores are mounted, use a 120 mmφ lead pipe 9 as shown in Figure 6 as follows. It is done. That is, use a mallet to narrow both ends of the lead pipe 9 to the diameter of the cable sheath, and then use solder with a high tin content to increase the adhesion of the solder to the cable sheath and the narrowed part of the lead pipe 9 where the lead work is to be done. Coat the surface (solder plating). Next, the lead work part 1o is formed by connecting both with lead using a torch lamp.
したがって、従来は、接続部が１２０ ｍｍの外径とな
り、８０ｍｍの内径を有する管路内には布設できないた
め、接続点は必ずマンホー 。Therefore, conventionally, the connection point has an outer diameter of 120 mm and cannot be installed in a pipe with an inner diameter of 80 mm, so the connection point must be a manhole.
ル内に設置しなければならなかった。このため、マンホ
ール間隔が長い（すなわち管路長が長い）場合には長い
同軸ケーブルが必要になり、短尺の同軸ケーブルが複数
あっても全く利用できないという不都合があった。It had to be installed inside the room. For this reason, when the manhole interval is long (that is, the conduit length is long), a long coaxial cable is required, and even if there are a plurality of short coaxial cables, there is an inconvenience that they cannot be used at all.
〈発明が解決しようとする課題〉
本発明は、ケーブルとその接続部とを管路内に布設する
ことができるように、同軸ケーブルの接続部を細径化す
ることを目的とする。<Problems to be Solved by the Invention> An object of the present invention is to reduce the diameter of a connecting portion of a coaxial cable so that the cable and its connecting portion can be installed in a conduit.
乙の細径化により、短尺な同軸ケーブルを利用すること
が可能となる。By reducing the diameter of B, it becomes possible to use a short coaxial cable.
〈課題を解決するための手段〉
本発明は、上記問題点、すなわち同軸心にＰＶＣテープ
を巻くために同軸心相互の間隔をとっていることが接続
部の仕上り外径を太（している点に鑑み、接続部で同軸
心の曲げを形成せず、かつ、接続位置をケーブルの長手
方向りこ対し分散化させた同軸心の接続前に熱収縮チュ
ーブを同軸心に通し、接続後にこの熱収縮チューブで外
部導体スリーブを覆い、同軸心線間の絶縁を保持するこ
とを特徴とする同軸ケーブルの細径接続部形成方法にあ
る。<Means for Solving the Problems> The present invention solves the above problem, that is, the fact that the distance between the coaxial cores is kept in order to wrap the PVC tape around the coaxial cores makes the finished outer diameter of the connection part thick. In view of the above, heat-shrinkable tubes are passed through the coaxial core before connecting the coaxial core without forming any bends in the coaxial core at the connection part, and the connection positions are dispersed in the longitudinal direction of the cable. A method for forming a small-diameter joint of a coaxial cable, which comprises covering an outer conductor sleeve with a shrink tube to maintain insulation between coaxial core wires.
く作 用〉
上記構成により、同軸心線間の作業幅が不必要となり、
仕上り外径を６０ｍｍφに抑えることができる。Effect〉 The above configuration eliminates the need for a working width between the coaxial core wires,
The finished outer diameter can be kept to 60mmφ.
〈実 施 例〉
以下、図面に示した実施例にもとずき、本発明に係る同
軸ケーブルの細径接続部形成方法について説明する。<Example> Hereinafter, a method for forming a small diameter connection portion of a coaxial cable according to the present invention will be described based on an example shown in the drawings.
第１図は、本発明に係る細径接続部の形成方法により同
軸心の接続が終了した段階の状態を示すものであるが、
従来の接続部とちがって細径化されるのは、各同軸心１
の接続位置１１をケーブルの長手方向に対し分散（本実
施例では３カ所）させるようにして接続部が太くならな
いように考慮されているがらである。また、同軸心１は
、第５図で示した従来の接続部と異なり、曲げを形成せ
ずにできるだけ直線上にし、ケーブルけん引張力が各同
軸心１に分散されるようになっている。FIG. 1 shows the state at the stage where the connection of coaxial cores is completed by the method of forming a small diameter connection part according to the present invention.
Unlike conventional connections, each coaxial core 1 is made smaller in diameter.
The connection positions 11 of the cables are distributed in the longitudinal direction of the cable (three locations in this embodiment) in order to prevent the connection portion from becoming thick. Further, unlike the conventional connection portion shown in FIG. 5, the coaxial cores 1 are formed as straight as possible without forming any bends, so that the cable pulling tension is distributed to each coaxial core 1.
かかる本発明に係る同軸心の接続は下記の手順にしたが
って行なわれる。すなわち個々の同軸心１の接続は前述
した従来の方法に準じろが、同軸心１を直線状にして所
定の位置で切断し、接続前に外部導体スリーブとともに
熱収縮チューブを同軸心に通して置く。そして、前述し
たように、中心導体および外部導体の接続をかしめによ
り行った後、熱収縮チューブを外部導体スリーブの上に
ずらし、適宜の加熱手段により熱収縮チューブを加熱し
て外部導体スリーブに密着させ、これを絶縁する。The connection of coaxial cores according to the present invention is performed according to the following procedure. That is, the connection of individual coaxial cores 1 follows the conventional method described above, but the coaxial cores 1 are made straight and cut at predetermined positions, and before connection, a heat shrink tube is passed through the coaxial cores together with an outer conductor sleeve. put. Then, as mentioned above, after the center conductor and the outer conductor are connected by caulking, the heat-shrinkable tube is moved over the outer conductor sleeve, and the heat-shrinkable tube is heated by an appropriate heating means so that it is tightly attached to the outer conductor sleeve. and insulate it.
次に２本目の同軸心の接続を行う。第二木目の同軸心１
も接続予定の位置で、所定の長さに切断して接続を実施
し、かしめ工具の最小作業幅の間隙を接続終了同軸心１
との間に取っておく （第２図参照）。中心導体および
外部導体スリーブのかしめ終了後、熱収縮チューブで絶
縁処理し、第−本口の同軸心側に寄せる。Next, connect the second coaxial core. Second grain coaxial center 1
At the position where the connection is planned, cut the coaxial core to the specified length and connect it, and adjust the gap of the minimum working width of the caulking tool to
(See Figure 2). After caulking the center conductor and outer conductor sleeves, they are insulated with heat shrink tubes and moved to the coaxial center side of the first main port.
以上の要領で順次、接続の終了した同軸心を既に接続の
終了した同軸心側に寄せ、接続部の細径化を図る。以上
の方法による接続では、接続部を管路内に引き込む際に
張力の一部を同軸心で負担することになる。In the above manner, the connected coaxial core is brought closer to the already connected coaxial core to reduce the diameter of the connecting portion. In the connection using the above method, part of the tension is borne by the coaxial center when the connecting portion is drawn into the pipe.
なお、当発明の基礎検討における実験では、同軸心−本
当り約１２０〜１３０ ｋｇの張力に耐えうろことが確
認されている。In addition, in experiments conducted in the basic study of the present invention, it has been confirmed that the coaxial core can withstand a tension of approximately 120 to 130 kg.
第１図に示すように、形成した複数の同軸心上にトーチ
ランプによる鉛工の際の熱防護対策として、クラフト紙
を巻く。その上に、同軸心線間を近接させるために綿テ
ープを巻き、更に本発明では鉛管と接続部の間隙が少な
いためガラステープ１２を巻いて熱遮蔽する。以上の工
程により元の外径約５０ｍｍの同軸ケーブルに対して外
径６０ｍｍの鉛管が適用できる。As shown in FIG. 1, kraft paper is wrapped around the formed coaxial cores as a heat protection measure during lead work using a torch lamp. A cotton tape is wrapped thereon in order to bring the coaxial core wires close to each other, and a glass tape 12 is further wrapped thereon for heat shielding since the gap between the lead pipe and the connection part is small in the present invention. Through the above steps, a lead pipe with an outer diameter of 60 mm can be applied to the original coaxial cable with an outer diameter of about 50 mm.
次に、接続作業最初の段階にあらかじめ通しておいた鉛
管９を鉛工により接続することにより外被接続を行う。Next, the outer sheath connection is performed by connecting the lead pipe 9, which has been passed through in advance in the first stage of the connection work, using a lead worker.
この外被接続は最も耐張力性、気密性の高い鉛工方法を
採る。すなわち鉛管９の作成方法は、第３図左側に示す
ように、鉛管９の両端を木槌でケーブル外被に接触する
程度にまで細め、最も張力がかかるケーブル外被と鉛管
９の接触部分を半田の接着密度を高めるためにスズ成分
の多い半田で鉛管９の表面をコーティングする。なお、
この時ケーブル外被と接触する鉛管９の内部にもスズ成
分の多い半田で表面をコーティングし、耐張力性をより
高めるようにする（第３図に示すように破線部をコーテ
ィングする）。This jacket connection uses a lead method with the highest tensile strength and airtightness. In other words, the method for making the lead pipe 9 is as shown on the left side of Figure 3, by thinning both ends of the lead pipe 9 with a mallet to the extent that they touch the cable sheath, and then thinning the contact area between the cable sheath and the lead pipe 9 where the most tension is applied. The surface of the lead pipe 9 is coated with solder containing a large amount of tin in order to increase the adhesion density of the solder. In addition,
At this time, the surface of the inside of the lead pipe 9 that comes into contact with the cable jacket is also coated with solder with a high tin content to further increase the tensile strength (as shown in FIG. 3, the broken line portion is coated).
また、同様の目的で、同軸ケーブルの外被である鉛管９
の表面にスズ成分の多い半田をコーティングし、鉛工の
接着強度を高める。In addition, for the same purpose, lead pipe 9, which is the outer sheath of the coaxial cable,
Coat the surface with solder that has a high tin content to increase the adhesive strength of lead work.
鉛工は第３図右側に示すよう１こ、鉛管９とケーブル外
被の間隙から鉛管９内へ若干半田を押し込み、鉛管９の
内部とケーブル外被との接着面が多くなるように施工し
、最後に鉛管９の細めた部分とケーブル外被の鉛工際が
一直線に成るように半田により形状を整える。For the lead work, as shown on the right side of Figure 3, push solder slightly into the lead pipe 9 through the gap between the lead pipe 9 and the cable sheath, so that there is more adhesive surface between the inside of the lead pipe 9 and the cable sheath. Finally, the shape is adjusted by soldering so that the narrowed part of the lead pipe 9 and the lead edge of the cable jacket are in a straight line.
〈発明の効果〉
以上説明したような接続部の形成方法を適用することに
より、細いケーブル接続部を形成でき、かつ、その接続
部の強度も十分であり、内径約８０ｍｍの管路に引込む
ことができるため、新たに長尺の同軸ケーブルを発注す
ることなく、手持ちの短尺な同軸ケーブル相互を接続す
ることができるから管路内へ布設することができる。<Effects of the Invention> By applying the method for forming a connection part as described above, a thin cable connection part can be formed, and the strength of the connection part is sufficient, and it can be drawn into a conduit with an inner diameter of about 80 mm. Therefore, short coaxial cables on hand can be connected to each other without ordering new long coaxial cables, and can be installed inside the conduit.
したがって、本発明により同軸ケーブルルートの迅速な
保守運用が可能と成るとともに、保守工事のコストダウ
ンが図れる。Therefore, the present invention enables quick maintenance and operation of coaxial cable routes, and reduces the cost of maintenance work.
第１図は本発明に係ろ細径接続部の形成方法により同軸
心の接続が終了した段階の状態を示す側面図、第２図お
よび第３図は本発明方法の手順を示す側面図である。ま
た、第４図（，１（ｂ）〜第６図は従来の接続部形成方
法の手順を示す側面図である。
１ 同軸心
２ 中心導体
３ 外部導体
４・・外部導体スリーブ
５ 外部導体補強用内部カラー
６・外部導体補強用外部カラー
７・・中心導体スリーブ
８・・・ＰＶＣテープ
９・鉛管
１０・・鉛工部
１１・・・接続位置
１２・ガラステープFIG. 1 is a side view showing a state in which the connection of coaxial cores is completed by the method of forming a narrow diameter joint according to the present invention, and FIGS. 2 and 3 are side views showing the steps of the method of the present invention. be. In addition, FIGS. 4(, 1(b) to 6 are side views showing the procedure of the conventional connection part forming method. 1 Coaxial core 2 Center conductor 3 Outer conductor 4...Outer conductor sleeve 5 Outer conductor reinforcement Internal collar 6, external conductor reinforcement external collar 7, central conductor sleeve 8, PVC tape 9, lead pipe 10, lead work part 11, connection position 12, glass tape
Claims (1)
するとともに、接続前に外部導体スリーブを前記同軸心
に通し、ついで中心導体および外部導体の接続をかしめ
により行った後、接続部の絶縁処理および外被接続をす
る接続部の形成方法において、前記同軸心の切断に際し
同軸心には曲げを形成せず、かつ、その接続位置を前記
ケーブルの長手方向に対して分散させるようにするとと
もに、接続前に前記外部導体スリーブを前記同軸心に通
すに際し熱収縮チューブとともに行う一方、絶縁処理に
あたっては前記熱収縮チューブを前記外部導体スリーブ
上にずらし加熱して前記外部導体スリーブに密着させて
行うことを特徴とする同軸ケーブルの細径接続部形成方
法。The coaxial core of a coaxial cable consisting of a plurality of coaxial cores is cut, an outer conductor sleeve is passed through the coaxial core before connection, the center conductor and the outer conductor are connected by caulking, and then the connection part is insulated and In the method for forming a connection part for connecting an outer sheath, the coaxial core is not bent when the coaxial core is cut, and the connection positions are dispersed in the longitudinal direction of the cable, and the connection Before passing the outer conductor sleeve through the coaxial core, it is carried out together with a heat shrink tube, and during insulation treatment, the heat shrink tube is shifted onto the outer conductor sleeve and heated to bring it into close contact with the outer conductor sleeve. Features: A method for forming small-diameter connections in coaxial cables.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13562288A JP2512529B2 (en) | 1988-06-03 | 1988-06-03 | Method for forming small diameter connection part of coaxial cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13562288A JP2512529B2 (en) | 1988-06-03 | 1988-06-03 | Method for forming small diameter connection part of coaxial cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01308109A true JPH01308109A (en) | 1989-12-12 |
| JP2512529B2 JP2512529B2 (en) | 1996-07-03 |
Family
ID=15156112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13562288A Expired - Lifetime JP2512529B2 (en) | 1988-06-03 | 1988-06-03 | Method for forming small diameter connection part of coaxial cable |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2512529B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007028728A (en) * | 2005-07-13 | 2007-02-01 | Tokyo Electric Power Co Inc:The | Oil sealing method for cable terminal, and kit for oil sealing used for oil sealing of cable terminal |
-
1988
- 1988-06-03 JP JP13562288A patent/JP2512529B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007028728A (en) * | 2005-07-13 | 2007-02-01 | Tokyo Electric Power Co Inc:The | Oil sealing method for cable terminal, and kit for oil sealing used for oil sealing of cable terminal |
| JP4613723B2 (en) * | 2005-07-13 | 2011-01-19 | 東京電力株式会社 | Oil stop processing method for cable end and oil stop processing kit used for oil stop processing of cable end |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2512529B2 (en) | 1996-07-03 |
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