JPH0134844Y2 - - Google Patents
Info
- Publication number
- JPH0134844Y2 JPH0134844Y2 JP20160583U JP20160583U JPH0134844Y2 JP H0134844 Y2 JPH0134844 Y2 JP H0134844Y2 JP 20160583 U JP20160583 U JP 20160583U JP 20160583 U JP20160583 U JP 20160583U JP H0134844 Y2 JPH0134844 Y2 JP H0134844Y2
- Authority
- JP
- Japan
- Prior art keywords
- plug
- connection tube
- insulating
- semiconductive layer
- cable
- 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
- 229920001971 elastomer Polymers 0.000 claims description 15
- 230000037431 insertion Effects 0.000 claims description 13
- 238000003780 insertion Methods 0.000 claims description 13
- 125000006850 spacer group Chemical group 0.000 description 6
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 4
- 239000004020 conductor Substances 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Landscapes
- Cable Accessories (AREA)
Description
【考案の詳細な説明】
〔考案の技術分野〕
本考案は、ケーブルの接続部に使用される差込
式絶縁接続筒に関する。[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a plug-in type insulating connection tube used for a cable connection.
近年、電力ケーブルの接続部として、現場作業
の簡略化、寸法の縮小化、あるいは電気的特性の
安定化等の要請から差込式接続部が多く用いられ
ている。
In recent years, plug-in connectors have been widely used as connectors for power cables due to demands such as simplification of on-site work, reduction in size, and stabilization of electrical characteristics.
この接続部は、第１図に示すように、差込孔中
央部内面の内部半導電層２と、外周の外部半導電
層３と、ゴム絶縁筒１とを一体モールド成形して
なる絶縁接続筒４を用いて形成されている。 As shown in FIG. 1, this connection part is an insulated connection formed by integrally molding an internal semiconductive layer 2 on the inner surface of the central part of the insertion hole, an external semiconductive layer 3 on the outer periphery, and a rubber insulating tube 1. It is formed using a cylinder 4.
すなわち、接続すべきケーブル５の端末を段剥
してケーブル導体６を円筒状のスリーブ７により
圧縮接続し、その外周に半導電性のスリーブカバ
ー８を被嵌し、さらにケーブル絶縁層９上にスリ
ーブカバー８と同径の電気絶縁性のスペーサー１
０，１０を被嵌してその外周に絶縁接続筒４を嵌
挿させて構成されている。上記、絶縁接続筒４、
スリーブカバー８、スペーサー１０等は電気絶縁
性の部分はエチレンプロピレンゴムのような絶縁
ゴム、半導電性の部分はエチレンプロピレンゴム
に導電性カーボンを配合した半導電性ゴムにより
形成されている。 That is, the ends of the cables 5 to be connected are stripped in stages, the cable conductors 6 are compressed and connected with a cylindrical sleeve 7, a semiconductive sleeve cover 8 is fitted around the outer periphery, and the sleeve is further placed on the cable insulation layer 9. Electrically insulating spacer 1 with the same diameter as cover 8
0 and 10, and an insulating connection tube 4 is fitted around the outer periphery thereof. Above, the insulation connection tube 4,
The sleeve cover 8, spacer 10, etc. are made of electrically insulating rubber such as ethylene propylene rubber for the electrically insulating parts, and semiconductive rubber made by blending conductive carbon with ethylene propylene rubber for the semiconductive parts.
なお、図中符号１２はケーブル半導電層、１３
はケーブル遮蔽層、１４はケーブルシース、１５
は半導電テープを示している。 In addition, the code|symbol 12 in the figure is a cable semiconducting layer, and 13
is a cable shielding layer, 14 is a cable sheath, 15
indicates semiconductive tape.
この接続部においては、スリーブカバー８およ
びスペーサー１０，１０の外径を絶縁接続筒４の
内径よりやや大きくして両者の接触面間に生じる
ゴム弾性力によりケーブル接続部の軸方向に対す
る把持力を持たせて、引き抜き力に抗し得るよう
にされている。 In this connection, the outer diameter of the sleeve cover 8 and the spacers 10, 10 are made slightly larger than the inner diameter of the insulating connection tube 4, and the gripping force in the axial direction of the cable connection is created by the rubber elastic force generated between the contact surfaces of the two. It is designed so that it can resist pulling force.
しかしながら、このような従来の差込式接続部
では、接続すべきケーブルが大サイズ化するに伴
ないケーブル接続部の絶縁性を維持するために絶
縁接続筒の肉厚が厚くなり、これに伴つてゴム絶
縁筒のゴム弾性力が増大するため、挿入作業に大
きな挿入力が必要となり、作業能率が低下すると
いう問題が生じていた。 However, in such conventional plug-in connections, as the size of the cable to be connected increases, the thickness of the insulated connection tube increases in order to maintain the insulation properties of the cable connection. As a result, the rubber elastic force of the rubber insulating tube increases, and a large insertion force is required for the insertion operation, resulting in a problem of reduced work efficiency.
本考案はこのような問題を解消するためになさ
れたもので、接続すべきケーブルが大サイズ化し
ても、比較的小さな力で挿入作業を行なうことが
できる差込式絶縁接続筒を提供することを目的と
している。
The present invention has been made to solve these problems, and aims to provide a plug-in type insulated connection tube that can be inserted with a relatively small force even when the cable to be connected becomes large in size. It is an object.
すなわち本考案の差込式絶縁接続筒は、中心に
ほぼ均一な内径の差込孔が形成された円筒状をな
し、前記差込孔の中央部内面に内部半導電層が形
成され、外周に外部半導電層が形成され残部が絶
縁ゴムから構成された電力ケーブル接続部に用い
られる差込式絶縁接続筒において、前記内部半導
電層が、前記差込孔の軸方向と平行に複数条の凸
条が形成されるように部分的に凹状に形成されて
いることを特徴としている。
In other words, the plug-in type insulating connection tube of the present invention has a cylindrical shape with a plug hole with a substantially uniform inner diameter formed in the center, an internal semiconductive layer is formed on the inner surface of the center part of the plug hole, and a semiconductive layer is formed on the outer periphery. In a plug-in insulated connection tube used for a power cable connection part in which an outer semiconducting layer is formed and the remainder is made of insulating rubber, the inner semiconducting layer has a plurality of strips parallel to the axial direction of the insertion hole. It is characterized in that it is partially formed in a concave shape so that a convex strip is formed.
以下、本考案の詳細を図面に示す一実施例によ
り説明する。
Hereinafter, details of the present invention will be explained with reference to an embodiment shown in the drawings.
第２図は本考案の差込式絶縁接続筒の一実施例
の使用状態を示す要部縦断面図、第３図はその
−線に沿う拡大横断面図である。なお、以下の
図において、第１図と共通する部分には同一符号
が付してある。 FIG. 2 is a longitudinal cross-sectional view of a main part showing the usage state of an embodiment of the plug-in insulating connection tube of the present invention, and FIG. 3 is an enlarged cross-sectional view taken along the - line. In the following figures, parts common to those in FIG. 1 are given the same reference numerals.
第２図に示すように、本考案の差込式絶縁接続
筒４は、差込孔中央部内面に内部半導電層２と、
外周の外部半導電層３と、ゴム絶縁筒１とが一体
モールド成形されてなる点は従来の差込式絶縁接
続筒と同一構成である。 As shown in FIG. 2, the plug-in insulating connection tube 4 of the present invention has an internal semiconducting layer 2 on the inner surface of the central part of the insertion hole.
The structure is the same as that of the conventional plug-in type insulating connection tube in that the outer semiconductive layer 3 on the outer periphery and the rubber insulating tube 1 are integrally molded.
しかして本考案においては、ゴム絶縁筒１の中
央部内周に設けられた内部半導電層２が内部半導
電層が、前記電力ケーブル接続部の導体接続部に
被嵌される半導電性のスリーブカバーと接触する
複数個の凸部を残して凹状に形成されている。 Therefore, in the present invention, the internal semiconductive layer 2 provided on the inner periphery of the central portion of the rubber insulating cylinder 1 is a semiconductive sleeve that is fitted onto the conductor connection part of the power cable connection part. It is formed into a concave shape with a plurality of convex portions remaining in contact with the cover.
すなわち、第３図に示すようにゴム絶縁筒１内
の内部半導電層２の内面に、その頂部が差込孔の
他の部分と同内径となるように長手方向に沿う凸
条１６が周方向に複数条形成されこの部分で半導
電性のスリーブカバー８と接触するようにされて
いる。なお絶縁接続筒４、スリーブカバー８、ス
ペーサー１０等は電気絶縁性の部分はエチレンプ
ロピレンゴムのような絶縁ゴム、半導電性の部分
はエチレンプロピレンゴムに導電性カーボンを配
合した半導電性ゴムにより形成されている。 That is, as shown in FIG. 3, on the inner surface of the internal semiconductive layer 2 in the rubber insulating cylinder 1, a protruding strip 16 is provided along the longitudinal direction so that the top part has the same inner diameter as the other part of the insertion hole. A plurality of stripes are formed in the direction, and these portions come into contact with the semiconductive sleeve cover 8. The insulating connection tube 4, sleeve cover 8, spacer 10, etc. are made of insulating rubber such as ethylene propylene rubber for the electrically insulating parts, and semiconductive rubber made by blending conductive carbon with ethylene propylene rubber for the semiconductive parts. It is formed.
この差込式絶縁接続筒は、従来と同様に端末が
段剥された円筒状のスリーブ７により圧縮接続さ
れた導体接続部上に、半導電性のスリーブカバー
８と同径の電気絶縁性のスペーサー１０，１０を
介してケーブル５が嵌挿されてケーブル接続部１
１が構成される。 This plug-in type insulating connection tube has a semi-conductive sleeve cover 8 and an electrically insulating tube of the same diameter on the conductor connection portion which is compressed and connected by a cylindrical sleeve 7 with a step-stripped end as in the conventional case. The cable 5 is inserted through the spacers 10, 10, and the cable connection part 1
1 is configured.
このように構成された本考案の差込式絶縁接続
筒においては、ゴム絶縁筒１内の挿入界面の半分
近くを占めていた内部半導電層２の内面が凹状に
形成されてゴム絶縁筒１の内径よりやや大径にさ
れ、かつ内部半導電層２の内面に複数条の凸条１
６が設けられこの部分で半導電性のスリーブカバ
ー８と接触するようにされているので、スリーブ
カバー８と内部半導電層２間に生じる摩擦力は、
スリーブカバー８とこのスリーブカバー８に接触
する内部半導電層２の内面に設けられた複数条の
凸条１６間に生じる摩擦力だけとなり、内部半導
電層２をケーブル導体と同電位としてその機能を
維持したまま挿入力を大幅に低減することが可能
となる。 In the plug-in insulating connection tube of the present invention constructed as described above, the inner surface of the internal semiconducting layer 2, which occupies nearly half of the insertion interface inside the rubber insulating tube 1, is formed into a concave shape. The diameter is slightly larger than the inner diameter of the internal semiconductor layer 2, and a plurality of protrusions 1 are formed on the inner surface of the internal semiconductive layer 2.
6 is provided and is in contact with the semiconductive sleeve cover 8 at this portion, so the frictional force generated between the sleeve cover 8 and the inner semiconductive layer 2 is
The only friction force generated is between the sleeve cover 8 and the plurality of protrusions 16 provided on the inner surface of the inner semiconductive layer 2 that contacts the sleeve cover 8, and the inner semiconductive layer 2 functions as having the same potential as the cable conductor. It is possible to significantly reduce the insertion force while maintaining the
以上説明したように本考案の差込式絶縁接続筒
によれば、接続すべきケーブルが大サイズ化され
ても、比較的小さな挿入力で挿入作業を行なうこ
とができる。従つてケーブルのサイズにかかわら
ず、作業能率が向上された差込式絶縁接続筒を得
ることができる。
As explained above, according to the plug-in type insulating connection tube of the present invention, even if the cable to be connected is increased in size, the insertion operation can be performed with a relatively small insertion force. Therefore, regardless of the size of the cable, it is possible to obtain a plug-in type insulating connection tube with improved working efficiency.
第１図は従来の差込式絶縁接続筒を示す縦断面
図、第２図は本考案の一実施例で示した差込式絶
縁接続筒を示す縦断面図、第３図はその−に
沿う横断面図である。
１……ゴム絶縁筒、２……内部半導電層、３…
…外部半導電層、４……絶縁接続筒、５……ケー
ブル、７……スリーブ、８……スリーブカバー、
１０……スペーサー。
Fig. 1 is a longitudinal sectional view showing a conventional plug-in type insulating connection tube, Fig. 2 is a longitudinal sectional view showing a plug-in type insulating connection tube according to an embodiment of the present invention, and Fig. 3 is a vertical sectional view showing the plug-in type insulating connection tube according to an embodiment of the present invention. FIG. 1...Rubber insulating tube, 2...Inner semiconductive layer, 3...
...Outer semiconductive layer, 4...Insulating connection tube, 5...Cable, 7...Sleeve, 8...Sleeve cover,
10...Spacer.
Claims (1)
筒状をなし、前記差込孔の中央部内面に内部半導
電層が形成され、外周に外部半導電層が形成され
残部が絶縁ゴムから構成された電力ケーブル接続
部に用いられる差込式絶縁接続筒において、 前記内部半導電層が、前記差込孔の軸方向と平
行に複数条の凸条が形成されるように部分的に凹
状に形成されていることを特徴とする差込式絶縁
接続筒。[Claims for Utility Model Registration] It has a cylindrical shape with an insertion hole of approximately uniform inner diameter formed in the center, an inner semiconductive layer is formed on the inner surface of the central part of the insertion hole, and an outer semiconductive layer on the outer periphery. In a plug-in insulated connection tube used for a power cable connection part, the inner semiconductive layer is formed with a plurality of protrusions parallel to the axial direction of the insertion hole, and the remaining part is made of insulating rubber. A plug-in type insulating connection tube characterized in that it is partially formed in a concave shape so as to be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20160583U JPS60110983U (en) | 1983-12-28 | 1983-12-28 | Plug-in type insulation connection tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20160583U JPS60110983U (en) | 1983-12-28 | 1983-12-28 | Plug-in type insulation connection tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60110983U JPS60110983U (en) | 1985-07-27 |
| JPH0134844Y2 true JPH0134844Y2 (en) | 1989-10-24 |
Family
ID=30763553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20160583U Granted JPS60110983U (en) | 1983-12-28 | 1983-12-28 | Plug-in type insulation connection tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60110983U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5707149B2 (en) * | 2011-01-25 | 2015-04-22 | 株式会社フジクラ | Cylindrical protective covering and manufacturing method thereof |
-
1983
- 1983-12-28 JP JP20160583U patent/JPS60110983U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60110983U (en) | 1985-07-27 |
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