JPH09252515A - Pressure connection method for conductor of power cable - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a pressure connection method which prevents a conductor form being dislocated when it is pressed and connected, by a method wherein a cylindrical rigid body in a half length of a conductor sleeve is inserted into a partitionless bump-shaped conductor sleeve, the conductor is inserted from an end part on one side, and, while the sleeve is being pressed, a bump part at the conductor sleeve on a side on which the conductor is inserted is pressed. SOLUTION: A cylindrical rigid body 11 is inserted from the side of the end part 10a of a partitionless bump-shaped conductor sleeve 10. The cylindrical rigid body 11 is provided with a length which is half the total length of the conductor sleeve 10 and with an outside diameter which is slightly smaller than the inside diameter of the sleeve. Then, a conductor 2 is inserted from an end part 10b on the opposite side. While the conductor sleeve 10 is being pressed to the end part of the inserted conductor, the bump part 10b at the conductor sleeve 10 on a side on which the conductor 2 is inserted is pressed. As a result, it is possible to prevent the tip of the conductor 2 from being dislocated in the setting operation and the press operation of a pression apparatus.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【発明の属する技術分野】本発明は、例えばＣＶケーブ
ル等のゴム、プラスチック電力ケーブルの導体の圧縮接
続方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a compression connection method for conductors of rubber or plastic power cables such as CV cables.

【０００２】[0002]

【従来の技術】図３は隔壁なしラクダ型導体スリーブを
用いた従来の電力ケーブル用導体の圧縮接続方法の一例
の縦断面をあらわした説明図である。図面において、10
は隔壁なしラクダ型導体スリーブで、中心に導体挿入用
の貫通孔10c を有し、両端外周の圧縮部にはコブ10a 、
10b を有しており、中央部にはスリーブ壁を貫通する貫
通孔10d を有している。そして、上記導体スリーブ10の
一方の端部から最初の一方の導体２を挿入してコブ部10
b を圧縮するが、この際、上記導体２の先端の位置を導
体スリーブ10の中央部に設けた貫通孔を覗いて確認して
から圧縮していた。なお、図面において１はケーブル絶
縁体を示す。2. Description of the Related Art FIG. 3 is an explanatory view showing a vertical cross section of an example of a conventional compression connection method for a conductor for a power cable using a camel type conductor sleeve without a partition. In the drawing, 10
Is a camel-type conductor sleeve without a partition, has a through hole 10c for inserting a conductor in the center, and has a hump 10a in the compression part on the outer periphery of both ends.
10b, and a through hole 10d penetrating the sleeve wall at the center. Then, the first conductor 2 is inserted from one end of the conductor sleeve 10 and the bump portion 10 is inserted.
b is compressed, but at this time, the position of the tip of the conductor 2 is confirmed by looking through the through hole provided in the central portion of the conductor sleeve 10 and then compressed. In the drawings, 1 indicates a cable insulator.

【０００３】[0003]

【発明が解決しようとする課題】上述のように、従来の
隔壁なしラクダ型導体スリーブの圧縮接続作業において
の最初の一方の導体を導体スリーブに挿入して圧縮する
際、導体先端の位置は目視で確認するのみで機械的な固
定がなされていないため、圧縮装置のセッティング作業
や圧縮時に導体先端の位置にズレが生じるという問題が
あった。As described above, when inserting and compressing the first one conductor in the conventional compression connecting work of the camel type conductor sleeve without a partition, the position of the tip of the conductor is visually checked. However, there is a problem in that the position of the tip of the conductor is misaligned during setting work or compression of the compression device because it is not mechanically fixed.

【０００４】[0004]

【課題を解決するための手段】本発明は、上述の問題点
を解消し、導体先端位置を確実に隔壁なしラクダ型導体
スリーブの中央に位置決めできる隔壁なしラクダ型導体
スリーブを用いた電力ケーブル用導体の圧縮接続方法を
提供するもので、その第１の特徴は最初の一方の導体を
導体スリーブに挿入して圧縮する際に、導体スリーブの
上記導体を挿入する端部とは反対側の端部から導体スリ
ーブ長の半分の長さと導体スリーブ内径より僅かに小さ
な外径を有する円柱状剛体を挿入し、円柱状剛体を挿入
した側の導体スリーブを該導体スリーブのラクダのコブ
に係合する内面形状を有する固定部材で把持し、この状
態を保持して上記導体スリーブの円柱状剛体が挿入され
ていない端部から上記導体を挿入し、導体スリーブを挿
入した導体端部に押しつけながら、導体を挿入した側の
導体スリーブのコブ部を圧縮することにある。DISCLOSURE OF THE INVENTION The present invention solves the above-mentioned problems and is for a power cable using a camel type conductor sleeve without a partition, which can surely position the tip of the conductor at the center of the camel type conductor sleeve without a partition. A first aspect of the present invention provides a method for compressively connecting conductors, the first feature of which is that when inserting and compressing one of the first conductors into the conductor sleeve, the end of the conductor sleeve opposite to the end into which the conductors are inserted. A cylindrical rigid body having a half length of the conductor sleeve and an outer diameter slightly smaller than the inner diameter of the conductor sleeve is inserted from the portion, and the conductor sleeve on the side into which the cylindrical rigid body is inserted is engaged with the camel's hump of the conductor sleeve. Grasping with a fixing member having an inner surface shape, holding this state, insert the conductor from the end of the conductor sleeve where the cylindrical rigid body is not inserted, and insert the conductor sleeve into the conductor end. Discipline while is to compress the Cobb portion of the conductor sleeve on the side of inserting the conductor.

【０００５】又本発明の第２の特徴は、上記において、
導体スリーブの端部から挿入する円柱状剛体にネジタッ
プ穴を設けておき、圧縮後そのネジタップ穴にネジもし
くはボルトをねじ込んで上記円柱状剛体を引抜くことに
ある。A second feature of the present invention is that in the above,
The cylindrical rigid body inserted from the end of the conductor sleeve is provided with a screw tap hole, and after compression, a screw or a bolt is screwed into the screw tap hole to pull out the cylindrical rigid body.

【０００６】[0006]

【発明の実施の形態】図１（イ）及び（ロ）は本発明の
電力ケーブル用導体の圧縮接続方法の第１の特徴を実施
する手順の縦断面をあらわした説明図である。なお、図
面において図３と同一符号は同一部位をあらわしてい
る。図面に示すように、最初の一方の導体２をラクダ型
導体スリーブ10の一方の端部（ 10b側）から圧縮する際
に、上記導体スリーブ10の上記導体２を挿入する端部
（ 10b側）とは反対側の端部（ 10a側）から、例えば鋼
製の円柱状剛体11を挿入する。上記円柱状剛体11は導体
スリーブ10全長の半分の長さと導体スリーブ10の内径よ
り僅かに小さな外径を有しており、又中心部にはネジタ
ップ穴11a が形成されている。このように一端に円柱状
剛体11が挿入されている導体スリーブ10のコブ部10a の
外側には、上記コブ部10a に係合し、その側面が円柱状
剛体11の端面に延びる、例えば２つ割構造の固定部材12
を係合把持し、固定用テープ13等にて固定する（図１．
イ参照）。1 (a) and 1 (b) are explanatory views showing a longitudinal section of a procedure for carrying out the first feature of the method for compression-connecting a conductor for a power cable according to the present invention. In the drawing, the same reference numerals as those in FIG. 3 represent the same parts. As shown in the drawing, when the first one conductor 2 is compressed from one end (10b side) of the camel-type conductor sleeve 10, the end (10b side) of the conductor sleeve 10 into which the conductor 2 is inserted. A cylindrical rigid body 11 made of, for example, steel is inserted from the end portion (10a side) opposite to the side. The cylindrical rigid body 11 has a half length of the entire length of the conductor sleeve 10 and an outer diameter slightly smaller than the inner diameter of the conductor sleeve 10, and a screw tap hole 11a is formed at the center thereof. As described above, the outer side of the bump portion 10a of the conductor sleeve 10 having the cylindrical rigid body 11 inserted at one end is engaged with the bump portion 10a, and its side surface extends to the end surface of the cylindrical rigid body 11. Split structure fixing member 12
Are gripped and fixed with fixing tape 13 or the like (FIG. 1.
B).

【０００７】このような状態を保持して、上記導体スリ
ーブ10の円柱状剛体11が挿入されていない端部（ 10b
側）から、図１（ロ）に示すように導体２を挿入し、導
体スリーブ10を挿入した導体端部に押しつけながら導体
２を挿入した側の導体スリーブ10のコブ部10b を圧縮す
る。While maintaining such a state, the end portion (10b) of the conductor sleeve 10 where the cylindrical rigid body 11 is not inserted.
1), the conductor 2 is inserted from the side), and the bump portion 10b of the conductor sleeve 10 on the side on which the conductor 2 is inserted is compressed while pressing the conductor end portion into which the conductor 2 is inserted.

【０００８】図２は本発明の第２の特徴を実施する方法
の縦断面をあらわした説明図である。最初の一方の導体
２の圧縮が終了すれば、固定用テープ13と固定部材12を
取外し、円柱状剛体11のネジタップ穴11a にネジもしく
はボルト14をねじ込み、矢印の方向に引張って円柱状剛
体11を引抜く。そして、円柱状剛体11を引抜いた導体ス
リーブ10の端部（ 10a）から、もう一方の導体を挿入
し、さきに圧縮されている導体２の端部に押しつけ、導
体スリーブ10のコブ部10a を圧縮して接続を完了する。FIG. 2 is an explanatory view showing a longitudinal section of a method for carrying out the second feature of the present invention. When the compression of the first conductor 2 is completed, the fixing tape 13 and the fixing member 12 are removed, a screw or bolt 14 is screwed into the screw tap hole 11a of the cylindrical rigid body 11, and the cylindrical rigid body 11 is pulled by pulling in the direction of the arrow. Pull out. Then, insert the other conductor from the end portion (10a) of the conductor sleeve 10 from which the cylindrical rigid body 11 is pulled out, and press it against the end portion of the conductor 2 that has been compressed, and the bump portion 10a of the conductor sleeve 10 is pushed. Compress and complete the connection.

【０００９】[0009]

【発明の効果】以上説明したように、本発明の電力ケー
ブル用導体の圧縮接続方法によれば、最初に圧縮される
導体の先端位置が、導体スリーブ内に挿入された円柱状
剛体によって確実に位置決めされるため、隔壁なしラク
ダ型導体スリーブを用いての圧縮接続時の位置ズレを防
止でき、接続すべき２本のケーブルコア間隔を設計通り
に確保できる。As described above, according to the compression connecting method of the power cable conductor of the present invention, the tip position of the conductor to be compressed first is surely secured by the cylindrical rigid body inserted in the conductor sleeve. Since the positioning is performed, it is possible to prevent the positional deviation at the time of compression connection using the camel type conductor sleeve without the partition wall, and it is possible to secure the distance between the two cable cores to be connected as designed.

【図面の簡単な説明】[Brief description of drawings]

【図１】（イ）及び（ロ）は本発明の第１の特徴を実施
する手順の縦断面をあらわした説明図である。1A and 1B are explanatory views showing a vertical cross section of a procedure for carrying out the first feature of the present invention.

【図２】本発明の第２の特徴を実施する方法の縦断面を
あらわした説明図である。FIG. 2 is an explanatory view showing a vertical cross section of a method for carrying out the second feature of the present invention.

【図３】隔壁なしラクダ型導体スリーブを用いた従来の
電力ケーブル用導体の圧縮接続方法の一例の縦断面をあ
らわした説明図である。FIG. 3 is an explanatory view showing a vertical cross section of an example of a conventional compression connection method for a conductor for a power cable using a camel type conductor sleeve without a partition.

【符号の説明】[Explanation of symbols]

１ ケーブル絶縁体 ２ 導体 10 隔壁なしラクダ型導体スリーブ 10a, 10b ラクダのコブ部 11 円柱状剛体 11a ネジタップ穴 12 固定部材 13 固定用テープ 14 ボルト 1 Cable insulator 2 Conductor 10 Camel type conductor sleeve without bulkhead 10a, 10b Camel bump 11 Cylindrical rigid body 11a Screw tap hole 12 Fixing member 13 Fixing tape 14 Bolt

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】 電力ケーブル用導体の接続を隔壁なしラ
クダ型導体スリーブを用いて行う圧縮接続作業におい
て、最初の一方の導体を上記導体スリーブに挿入して圧
縮する際に、導体スリーブの上記導体を挿入する端部と
は反対側の端部から導体スリーブ長の半分の長さと導体
スリーブ内径より僅かに小さな外径を有する円柱状剛体
を挿入し、円柱状剛体を挿入した側の導体スリーブを該
導体スリーブのラクダのコブに係合する内面形状を有す
る固定部材で把持し、この状態を保持して上記導体スリ
ーブの円柱状剛体が挿入されていない端部から上記導体
を挿入し、導体スリーブを挿入した導体端部に押しつけ
ながら導体を挿入した側の導体スリーブのコブ部を圧縮
することを特徴とする電力ケーブル用導体の圧縮接続方
法。1. In a compression connection operation for connecting a conductor for a power cable using a camel type conductor sleeve without a partition, when the first one conductor is inserted into the conductor sleeve for compression, the conductor of the conductor sleeve is used. Insert a cylindrical rigid body with half the length of the conductor sleeve and an outer diameter slightly smaller than the inner diameter of the conductor sleeve from the end opposite to the end into which the cylindrical rigid body is inserted. The conductor sleeve is gripped by a fixing member having an inner surface shape that engages with the camel's hump, and while maintaining this state, the conductor is inserted from the end of the conductor sleeve where the cylindrical rigid body is not inserted. A method for compressing and connecting a conductor for a power cable, characterized in that the bump portion of the conductor sleeve on the side where the conductor is inserted is compressed while being pressed against the end portion of the inserted conductor. 【請求項２】 請求項１において、導体スリーブの端部
から挿入する円柱状剛体にネジタップ穴を設けておき、
圧縮後そのネジタップ穴にネジもしくはボルトをねじ込
んで上記円柱状剛体を引抜くことを特徴とする電力ケー
ブル用導体の圧縮接続方法。2. A cylindrical rigid body to be inserted from an end portion of a conductor sleeve according to claim 1, wherein a screw tap hole is provided in advance.
A method for compression-connecting a conductor for a power cable, characterized in that after the compression, a screw or a bolt is screwed into the screw tap hole to pull out the cylindrical rigid body.