JPS5932966B2 - Pipe insertion method for branch cable - Google Patents
Pipe insertion method for branch cableInfo
- Publication number
- JPS5932966B2 JPS5932966B2 JP4966780A JP4966780A JPS5932966B2 JP S5932966 B2 JPS5932966 B2 JP S5932966B2 JP 4966780 A JP4966780 A JP 4966780A JP 4966780 A JP4966780 A JP 4966780A JP S5932966 B2 JPS5932966 B2 JP S5932966B2
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- bundle
- plastic
- cable
- core
- 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
- Manufacturing Of Electrical Connectors (AREA)
- Processing Of Terminals (AREA)
Description
【発明の詳細な説明】
この発明は、多対プラスチック被覆心線ケーブルの分岐
部において、分岐ケーブルの外被として使用するパイプ
をプラスチック被覆心線束上に挿入する方法に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for inserting a pipe to be used as a jacket of a branch cable onto a plastic-coated core bundle at a branch portion of a multi-pair plastic-coated core cable.
多対プラスチック被覆心線ケーブルの分岐部は、ケーブ
ルの端末被覆を剥離し、この剥離部分の絶縁心線を複数
の束に分け、それぞれの束にパイプを挿入し、分岐境界
部に樹脂成形部が形成されるものである。At the branching point of a multi-pair plastic coated core cable, the terminal coating of the cable is stripped off, the insulated core wire at this stripped section is divided into multiple bundles, a pipe is inserted into each bundle, and a resin molded part is inserted at the branch boundary. is formed.
このような分岐付ケーブルの製造においては、被覆を剥
離した絶縁心線束上にパイプを挿入する作業が最も困難
であり、パイプ挿入時における作業性並びにパイプの機
械的な把持強度が重要である。In the production of such branched cables, the most difficult task is to insert the pipe onto the insulated core bundle from which the sheathing has been peeled off, and the workability at the time of inserting the pipe and the mechanical grip strength of the pipe are important.
従来、絶縁心線束上にパイプを挿入する方法には押し込
み方式と引張り方式の二種類が採用されている。Conventionally, two methods have been adopted for inserting a pipe onto an insulated core bundle: a pushing method and a pulling method.
押し込み方式は、第1図に示すように、プラスチック絶
縁心線ケーブルにおける心線束1の先端の被覆を剥離し
、露出した導体2を軽くねじり、その上から保護用にテ
ープ3を巻いて先端部4を形成し、この先端部4をパイ
プ5内に押し込んで行くのである。As shown in Figure 1, the push-in method involves peeling off the coating at the tip of the core bundle 1 in a plastic insulated core cable, lightly twisting the exposed conductor 2, and wrapping a protective tape 3 over it to secure the tip. 4 and push this tip 4 into the pipe 5.
このような押し込み方式は、先端部形成のために被覆を
剥離する作業が繁雑であるばかりでなく、心線束1のパ
イプ5内への挿入作業が極めて困難である。In such a pushing method, not only is the work of peeling off the coating to form the tip portion complicated, but also the work of inserting the core wire bundle 1 into the pipe 5 is extremely difficult.
即ち、細心の注意をはらつてもノレ線束には押込力によ
つて座屈が生じ、パイプ内でうねつてパイプ内周面と接
触することになる。このため摩擦力が急増し、心線束の
座屈強度に抵抗が達したり、パイプ長が長い場合には、
挿入に時間がかかり、時には挿入不可能となる。また、
挿入を容易にしようとするとパイプ5の内径をプラスチ
ック被覆心線束径よりもかなり大きくする必要があり、
パイプ5の内径を大きくすると心線束との間にクリアラ
ンスが生じ、これが分岐ケーブルの可撓性、引張り強度
、耐衝撃強度ノ 等の機械的なケーブル特性を低下させ
る原因になる。That is, even if the utmost care is taken, the bundle of wires will buckle due to the pushing force, and will undulate within the pipe and come into contact with the inner circumferential surface of the pipe. As a result, the frictional force increases rapidly, and if the resistance reaches the buckling strength of the core wire bundle or the pipe length is long,
Insertion takes time and is sometimes impossible. Also,
In order to facilitate insertion, it is necessary to make the inner diameter of the pipe 5 considerably larger than the diameter of the plastic-coated core bundle.
When the inner diameter of the pipe 5 is increased, a clearance is created between it and the core bundle, which causes a decrease in the mechanical properties of the branch cable, such as flexibility, tensile strength, and impact strength.
次に引張り方式は、第2図に示すように、通線用の線材
6を使用するものであり、心線束1の先端の被覆を剥離
して導体2を露出させ、そのうち・ の一本以上と線材
6の先端とをU字形の屈曲部Tによつて引つかけ、他の
導体2を軽<ねじりその上からテープ3を巻いて引留め
部4’を形成し、線材6に外嵌したパイプ5を矢印のよ
うに心線束1側に移動させるものである。Next, in the tension method, as shown in Fig. 2, a wire rod 6 is used for conducting the wire, and the coating at the tip of the core wire bundle 1 is peeled off to expose the conductor 2, and one or more of the conductors 2 are removed. and the tip of the wire 6 through the U-shaped bent part T, twist the other conductor 2 lightly and wrap the tape 3 over it to form a retaining part 4', and fit it around the wire 6. The pipe 5 is moved toward the core bundle 1 as shown by the arrow.
このような引張り方式は、被覆の剥離部に通線用線材と
心線束をU字形に引つかける作業が必要になり、作業に
手数を要して時間がかかることになる。In such a tensioning method, it is necessary to pull the wire rod and core wire bundle in a U-shape to the peeled portion of the coating, which is laborious and time-consuming.
さらに通線用線材をU字形にするため、少くとも引留め
部4′の外径が太くなり、その分だけパイプ5の内径を
大きくしなければならないので、前記押し込み方式の場
合と同様の問題が生じる。この発明は、上記のような従
来の方法にあつた問題点を解消するためになされたもの
であり、心線束にスリーブを螺合し、このスリーブに連
結したガイド用のロツドを引張りながら心線束上にパイ
プを挿入するようにし、パイプ挿入作業が極めて簡単か
つ能率的に行なえ、機械的なケーブル特性を向上させる
ことができるパイプ挿入方法を供給することを目的とす
る。以下、この発明の実施例を第3図乃至第5図に基づ
いて説明する。Furthermore, in order to make the wiring rod U-shaped, at least the outer diameter of the retaining portion 4' becomes thicker, and the inner diameter of the pipe 5 must be increased by that amount, resulting in the same problem as in the case of the push-in method. occurs. This invention was made to solve the problems of the conventional method as described above, and involves screwing a sleeve onto the core wire bundle, and pulling the guide rod connected to the sleeve to move the core wire bundle. It is an object of the present invention to provide a method for inserting a pipe in which the pipe is inserted above the cable, the pipe insertion work can be performed extremely easily and efficiently, and the mechanical properties of the cable can be improved. Embodiments of the present invention will be described below with reference to FIGS. 3 to 5.
第3図のように、プラスチツク被覆心線束11の先端部
12を軽くねじり、内面にねじ部13が設けられた金属
製のスリーブ14を先端部12のねじり方向に回転させ
ながら該先端部12にねじ込み、プラスチツク被覆心線
束11とスリーブ14を連結一体化する。As shown in FIG. 3, the tip 12 of the plastic-coated core wire bundle 11 is slightly twisted, and the metal sleeve 14 having the threaded portion 13 on the inside is rotated in the twisting direction of the tip 12. By screwing, the plastic coated core wire bundle 11 and the sleeve 14 are connected and integrated.
前記スリーブ14の端部にはガイド用のロツド15が連
結される。A guide rod 15 is connected to the end of the sleeve 14.
図示の場合、スリーブ14とロツド15の連結構造は、
ロツド15の球状頭部16をスリーブ14の端部で包持
し、回転方向に自在となるよう接続した例を示したが、
例えばねじ方式のように、分離されていて必要に応じね
じ込みで連結一体化するようにしてもよい。次に、ロツ
ド15にパイプ17を挿入し、ロツド15の先端を第4
図のように、固定部18で固定し、把持部19でパイプ
17を把持してプラスチツク被覆心線束11の側へ、第
4図矢印のように引き込むようにして挿入する。In the illustrated case, the connection structure between the sleeve 14 and the rod 15 is as follows:
Although an example has been shown in which the spherical head 16 of the rod 15 is held at the end of the sleeve 14 and connected so as to be freely rotatable in the direction of rotation,
For example, as in the case of a screw type, they may be separated and connected and integrated by screwing if necessary. Next, insert the pipe 17 into the rod 15, and connect the tip of the rod 15 to the fourth
As shown in the figure, the pipe 17 is fixed by the fixing part 18, gripped by the grip part 19, and inserted into the plastic-coated core bundle 11 by pulling it in as shown by the arrow in FIG.
ロツド15並びにスリーブ14の最大径は、パイプ17
の内径よりも僅かに小さいことが必要であるが、パイプ
17を例えばゴムのような弾性材料で形成した場合には
この限りではない。The maximum diameter of the rod 15 and sleeve 14 is the pipe 17.
However, this is not the case if the pipe 17 is made of an elastic material such as rubber.
上記のようにして、各プラスチツク被覆心線束11にパ
イプ17を順次挿入し、挿入作業が完了すると、第5図
のようにパイプ17群を一本の軸状に束ね、次にプラス
チツク被覆心線の被覆とパイプ17群の外側を硬化性樹
脂20によつて覆い、硬化した樹脂20を介してパイプ
17をプラスチツク被覆心線に固定化するものである。As described above, the pipes 17 are sequentially inserted into each plastic-coated core bundle 11, and when the insertion work is completed, the pipes 17 are bundled into a single shaft as shown in FIG. The coating and the outside of the group of pipes 17 are covered with a hardening resin 20, and the pipes 17 are fixed to the plastic-covered core wire via the hardened resin 20.
以上のように、この発明によると、プラスチツク被覆心
線束に金属スリーブをねじ込んで連結し、スリーブに連
結したガイド用ロツドを心線束と反対方向に引張りなが
ら、このロツド上に予じめ挿入されたパイプを絶縁心線
束上に移動させることにより、心線束にパイプを挿入す
るようにしたので、分岐するプラスチツク被覆心線束の
先端にスリーブをねじ込むという簡単な操作で、ガイド
用ロツドとプラスチツク被覆心線束とを一体化でき、こ
のロツドを介してパイプを心線束に挿入できるので、挿
入作業が容易となり、作業性能を大幅に向上させること
ができる。As described above, according to the present invention, a metal sleeve is screwed and connected to a plastic-coated core bundle, and while the guide rod connected to the sleeve is pulled in the opposite direction to the core bundle, By moving the pipe onto the insulated core bundle, the pipe can be inserted into the core bundle, so the guide rod and the plastic-coated core bundle can be easily connected by screwing the sleeve onto the tip of the branching plastic-coated core bundle. Since the pipe can be inserted into the core bundle through this rod, the insertion work becomes easy and the work performance can be greatly improved.
また、プラスチツク被覆心線束とパイプ内径とのクリア
ランスを、スリーブの使用によつて極力少なくすること
ができ、しかもパイプに弾性ノぐイプを用いるようにす
るとパイプの弾性効果により、パイプと心線束を一体化
させることができ、分岐ケーブルとして使用する場合の
可撓性、引張り強度、耐衝撃強度等の機械的なケーブル
特性を向上させることができる。In addition, the clearance between the plastic-coated core bundle and the inner diameter of the pipe can be minimized by using a sleeve, and if an elastic pipe is used for the pipe, the elastic effect of the pipe will allow the pipe and the core bundle to When used as a branch cable, mechanical cable properties such as flexibility, tensile strength, and impact strength can be improved.
さらに、心線束とパイプ内径とのクリアランス発生が少
ないので使用パイプの小径化を計ることができる。Furthermore, since there is less clearance between the core wire bundle and the inner diameter of the pipe, it is possible to reduce the diameter of the pipe used.
従つてケーブルの心線数が多く、分岐本数が多い場合で
も、分岐部外径がケーブル外径よりあまり大きくならず
、分岐部を径方向に小型化することができる等の効果を
あげることができる。Therefore, even when the cable has a large number of core wires and a large number of branches, the outer diameter of the branch part is not much larger than the outer diameter of the cable, and the branch part can be made smaller in the radial direction. can.
第1図と第2図は、従来のパイプ挿入方法の異なつた例
を示す縦断面図、第3図はこの発明のパイプ挿入方法の
挿入前の状態を示す縦断面図、第4図は同パイプ挿入途
中の状態を示す正面図、第5図は同じくパイプ挿入完了
状態を示す正面図である。
11・・・・・・プラスチツク心線束、12・・・・・
・先端部、13・・・・・・ねじ部、14・・・・・・
スリーブ、15・・・・・・ガイド用のロツド、17・
・・・・・パイプ。1 and 2 are longitudinal sectional views showing different examples of the conventional pipe insertion method, FIG. 3 is a longitudinal sectional view showing the state before insertion of the pipe insertion method of the present invention, and FIG. 4 is the same. FIG. 5 is a front view showing a state in which the pipe is being inserted, and FIG. 5 is a front view showing a state in which the pipe insertion is completed. 11...Plastic core wire bundle, 12...
・Tip part, 13... Threaded part, 14...
Sleeve, 15... Guide rod, 17.
·····pipe.
Claims (1)
して、この剥離部分の絶縁心線を複数本の束に分け、内
部にねじ山を有し、かつ後部にガイド用のロッドを連結
した金属スリーブを絶縁心線束上にねじ込み、ロッドを
絶縁心線束と反対方向に引張りながらロッド上に予じめ
挿入されたパイプを絶縁心線上に移動させることを特徴
とする分岐ケーブルにおけるパイプ挿入方法。1 The end coating of a plastic insulated core cable is peeled off, and the insulated core wire in the peeled part is divided into multiple bundles, and a metal sleeve is made with a thread inside and a guide rod connected to the rear part. A method for inserting a pipe into a branch cable, the method comprising screwing the pipe onto the insulated core bundle, and moving the pipe previously inserted onto the rod onto the insulated core while pulling the rod in the opposite direction to the insulated core bundle.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4966780A JPS5932966B2 (en) | 1980-04-16 | 1980-04-16 | Pipe insertion method for branch cable |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4966780A JPS5932966B2 (en) | 1980-04-16 | 1980-04-16 | Pipe insertion method for branch cable |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56148110A JPS56148110A (en) | 1981-11-17 |
JPS5932966B2 true JPS5932966B2 (en) | 1984-08-13 |
Family
ID=12837518
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4966780A Expired JPS5932966B2 (en) | 1980-04-16 | 1980-04-16 | Pipe insertion method for branch cable |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5932966B2 (en) |
-
1980
- 1980-04-16 JP JP4966780A patent/JPS5932966B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS56148110A (en) | 1981-11-17 |
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