JPH0555989B2 - - Google Patents
Info
- Publication number
- JPH0555989B2 JPH0555989B2 JP59165169A JP16516984A JPH0555989B2 JP H0555989 B2 JPH0555989 B2 JP H0555989B2 JP 59165169 A JP59165169 A JP 59165169A JP 16516984 A JP16516984 A JP 16516984A JP H0555989 B2 JPH0555989 B2 JP H0555989B2
- Authority
- JP
- Japan
- Prior art keywords
- heating
- cable
- tape
- connection part
- heated
- 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 - Lifetime
Links
- 238000010438 heat treatment Methods 0.000 claims description 44
- 238000000034 method Methods 0.000 claims description 11
- 230000006698 induction Effects 0.000 claims description 10
- 239000004020 conductor Substances 0.000 claims description 9
- 238000004804 winding Methods 0.000 claims description 8
- 239000012212 insulator Substances 0.000 claims description 7
- 229920003023 plastic Polymers 0.000 claims description 7
- 239000004033 plastic Substances 0.000 claims description 7
- 229920003002 synthetic resin Polymers 0.000 claims 2
- 239000000057 synthetic resin Substances 0.000 claims 2
- 238000004132 cross linking Methods 0.000 claims 1
- 238000000465 moulding Methods 0.000 description 6
- 238000009413 insulation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Landscapes
- Manufacturing Of Electrical Connectors (AREA)
- Processing Of Terminals (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、ケーブルの接続方法に係り、特に
絶縁体にゴムやプラスチツクを使用しているケー
ブルに適用して好適なゴム・プラスチツクケーブ
ルの接続部形成方法に関する。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a method for connecting cables, and in particular to a method for connecting rubber/plastic cables suitable for application to cables using rubber or plastic as an insulator. The present invention relates to a method for forming a part.
従来、ゴム・プラスチツクケーブルの接続に際
しては、接続すべきケーブル端の絶縁体を取除
き、導体を接続した後、該導体からケーブル絶縁
体にかけてテープを紡錘状に巻回積層し、このテ
ープ巻回層を、外部加熱手段によつて外部より加
熱するとともに、高周波誘導加熱手段によつて導
体を発熱させて内部より加熱し、一体に融着させ
モールドしていた（この方法については、特公昭
56−54675号公報や特公昭49−33833号公報に詳し
く述べられている。
Conventionally, when connecting rubber/plastic cables, the insulator at the end of the cable to be connected is removed, the conductor is connected, and then a tape is wound and laminated in a spindle shape from the conductor to the cable insulator. The layers were heated from the outside by an external heating means, and the conductor was heated from the inside by a high-frequency induction heating means to fuse them together and mold them.
It is described in detail in Publication No. 56-54675 and Japanese Patent Publication No. 49-33833.
ところで、上述した従来の方法において、高周
波誘導加熱を継続的に行うと、上記テープ巻回層
が過熱状態となつて熱劣化を起こしたり、接続部
近傍のケーブル絶縁体が熱軟化して変形してしま
うといつた問題があつた。
By the way, in the conventional method described above, if high-frequency induction heating is continuously performed, the tape winding layer becomes overheated and thermally deteriorates, and the cable insulation near the connection part becomes thermally softened and deformed. When I did that, I had a problem.
そして、これらの問題を避けるためには、高周
波出力を選択制限して加熱しなければならず、モ
ールドに要する時間が長くなつてしまうという問
題があつた。 In order to avoid these problems, it is necessary to selectively limit the high-frequency output for heating, resulting in a problem that the time required for molding becomes longer.
この発明は、これらの問題を解決し、モールド
時間の短縮と、成型性の向上を図ろうとするもの
である。 The present invention aims to solve these problems, shorten molding time, and improve moldability.
上記問題を解決するために、この発明は、外部
熱源による加熱と、高周波誘導加熱との加熱時間
に差異をもたせた同時加熱を行なうことを特徴と
する。この場合、時間的に全くずれている場合は
勿論、時間的に一部オーバーラツプする場合等も
含まれる。
In order to solve the above problem, the present invention is characterized in that heating by an external heat source and high-frequency induction heating are performed simultaneously with different heating times. In this case, not only cases in which there is a complete shift in time but also cases in which there is a partial overlap in time are included.
上記方法によれば、例えば、高出力の高周波加
熱および外部熱源による加熱を所定時間併用して
行つた後高周波加熱を停止し、以後外部加熱のみ
行なつて加熱時間差により加熱の調節を行ないな
がら成形することにより、モールド時間の短縮を
図ることができる。
According to the above method, for example, high-power high-frequency heating and heating by an external heat source are performed together for a predetermined period of time, then the high-frequency heating is stopped, and thereafter only external heating is performed, and the heating is adjusted according to the heating time difference while forming. By doing so, the molding time can be shortened.
また、テープ巻回層両端部の薄肉の部分をまず
外部加熱によつて加熱モールドし、所定時間経過
後にテープ巻回層全体を高周波加熱によつて加熱
モールドするといつた方法により、成型性の向上
を図ることができる。 In addition, moldability has been improved by first heat-molding the thin walled portions at both ends of the tape-wound layer using external heating, and then heat-molding the entire tape-wound layer using high-frequency heating after a predetermined period of time has elapsed. can be achieved.
以下、図面を参照して、本発明の実施例を説明
する。
Embodiments of the present invention will be described below with reference to the drawings.
第１図は本発明の第１実施例の構成を示す部分
断面図である。この図において、ケーブル１，２
の端部がペンシリングされ、ケーブル導体３，４
がスリーブ５によつて接続されている。そして、
この接続部からケーブル絶縁体６にかけて、架橋
可能なボリオレフインテープ７が紡錘状に巻回積
層され、テープ巻回層８を形成している。また、
テープ巻回層８の外周には高周波誘導加熱用の高
周波コイル９が巻回され、図示せぬ高周波電源に
接続されるとともに、高周波コイル９の外周には
カートリツジヒータ、バンドヒータあるいは赤外
線ヒータからなる外部加熱手段１０が配置されて
いる。なお、図中、１２はビニル外装である。 FIG. 1 is a partial sectional view showing the structure of a first embodiment of the present invention. In this figure, cables 1 and 2
The ends of the cable conductors 3, 4 are penciled.
are connected by a sleeve 5. and,
A crosslinkable polyolefin tape 7 is wound and laminated in a spindle shape from this connection portion to the cable insulator 6 to form a tape winding layer 8. Also,
A high-frequency coil 9 for high-frequency induction heating is wound around the outer circumference of the tape-wound layer 8 and is connected to a high-frequency power source (not shown). An external heating means 10 is arranged. In addition, in the figure, 12 is a vinyl exterior.
このような構成において、高周波加熱と外部加
熱とを同時に開始し、前者を１時間、後者を４時
間差動させた後で停止したときのケーブル導体
３，４とテープ巻回層８の温度は、各々第２図に
実線で示した曲線Ｃ１，Ｃ２のようになる。これ
らを、破線で示した従来の温度曲線Ｃ１ａ，Ｃ１
ｂと比較すると、約半分の時間で加熱を終了する
ことができる。これは本発明の方法により高周波
加熱を高出力、短時間で行うことができることの
効果による。 In such a configuration, when high-frequency heating and external heating are started at the same time, the former is differentially applied for 1 hour, and the latter is differentially applied for 4 hours, and then stopped, the temperatures of the cable conductors 3 and 4 and the tape-wound layer 8 are as follows. , curves C1 and C2 shown by solid lines in FIG. 2, respectively. These are the conventional temperature curves C1a and C1 shown by broken lines.
Compared to method b, heating can be completed in about half the time. This is due to the effect that high frequency heating can be performed at high output and in a short time by the method of the present invention.
次に、第３図は、本発明の第２実施例の構成を
示す部分断面図であり、１１は遮へい軟銅テー
プ、他は第１図の各部に対応する符号を付してあ
る。 Next, FIG. 3 is a partial sectional view showing the structure of a second embodiment of the present invention, in which reference numeral 11 is a shielding annealed copper tape, and other parts are denoted by symbols corresponding to those in FIG. 1.
本実施例においては、高周波コイル９がテープ
巻回層８の肉厚部外周に巻回され、その両側の薄
肉部には外部加熱手段１０が配置されている。 In this embodiment, a high-frequency coil 9 is wound around the outer periphery of the thick-walled portion of the tape-wound layer 8, and external heating means 10 are arranged on the thin-walled portions on both sides thereof.
このような構成において、まず、外部加熱手段
１０によつてテープ巻回層８の両端部（薄肉部）
を加熱モールドし、所定時間が経過してから高周
波加熱によつてテープ巻回層８の中央部（肉厚
部）を加熱モールドすれば、これらの加熱を同時
に平行して行つた従来の方法と異なり、肉厚部の
熱膨張によつて薄肉部絶縁体およびケーブル絶縁
体が外方向へ押圧されて流れ、接続部端部の絶縁
体に凹凸状の変形が発生したり、又他の場合とし
て銅ワイヤーシールドの隙間から絶縁体が流れ出
るといつた問題がなく、良好な成型を行うことが
できる。 In such a configuration, first, both ends (thin wall portions) of the tape winding layer 8 are heated by the external heating means 10.
If the central part (thick part) of the tape winding layer 8 is heated and molded after a predetermined period of time has elapsed, then the central part (thick part) of the tape wound layer 8 is heated and molded. On the other hand, the thermal expansion of the thick wall portion pushes the thin wall insulation and the cable insulation outward, causing uneven deformation of the insulation at the end of the connection, and in other cases. Good molding can be achieved without the problem of insulator flowing out from gaps in the copper wire shield.
以上説明したように、この発明は、高周波誘導
加熱と外部加熱とを時間的に差異を設けて行うよ
うにしたので、ケーブル接続部の成型を短時間の
内に高品質で行うことができる。
As explained above, in the present invention, high-frequency induction heating and external heating are performed with a time difference, so that the cable connection portion can be molded in a short period of time with high quality.
第１図は、本発明の第１実施例の構成を示す部
分断面図、第２図は同実施例における加熱時のテ
ープ巻回層の温度とケーブル導体の温度との変化
を従来のものと対比して示したグラフ、第３図は
本発明の第２実施例の構成を示す部分断面図であ
る。
１，２……ケーブル、３，４……ケーブル導
体、７……テープ、８……テープ巻回層、９……
高周波コイル、１０……外部加熱手段（外部熱
源）。
FIG. 1 is a partial cross-sectional view showing the structure of the first embodiment of the present invention, and FIG. 2 shows the change in temperature of the tape winding layer and the temperature of the cable conductor during heating in the same embodiment compared to the conventional one. The graph shown for comparison and FIG. 3 are partial cross-sectional views showing the structure of the second embodiment of the present invention. 1, 2... Cable, 3, 4... Cable conductor, 7... Tape, 8... Tape winding layer, 9...
High frequency coil, 10...external heating means (external heat source).
Claims (1)
テープを紡錘状に巻回積層した接続部を外部熱源
および高周波誘導加熱によつて加熱して、前記テ
ープ巻回層をケーブル絶縁体に融着架橋せしめて
一体化してなるゴム・プラスチツクケーブルの接
続部形成方法において、前記外部加熱源による加
熱と前記高周波誘導加熱とを同時に加熱を開始
し、所定時間後に高周波誘導加熱を停止し、外部
加熱源により加熱を行なつて、両加熱手段に加熱
時間差をもたせて加熱量を調節して成形すること
を特徴とするゴム・プラスチツクケーブルの接続
部形成方法。 ２ ケーブル接続部の導体上に未架橋の合成樹脂
テープを紡錘状に巻回積層した接続部を外部熱源
および高周波誘導加熱によつて加熱して、前記テ
ープ巻回層をケーブル絶縁体に融着架橋せしめて
一体化してなるゴム・プラスチツクケーブルの接
続部形成方法において、前記外部加熱源によりテ
ープ巻回層の両端薄肉部を加熱し、所定時間経過
後にテープ巻回層の中央厚肉部を高周波誘導加熱
により加熱を行つて、両加熱手段に加熱時間差を
持たせて加熱量を調節して成形することを特徴と
するゴム・プラスチツクケーブルの接続部形成方
法。[Claims] 1. A connecting portion in which an uncrosslinked synthetic resin tape is wound and laminated in a spindle shape on a conductor of a cable connecting portion is heated by an external heat source and high-frequency induction heating to form the tape-wound layer. In a method for forming a joint of a rubber/plastic cable formed by fusion-crosslinking and integrating a cable insulator, the heating by the external heating source and the high-frequency induction heating are started at the same time, and after a predetermined time, the high-frequency induction heating is started. A method for forming a connection part of a rubber/plastic cable, characterized in that the process is stopped, heating is performed by an external heating source, and the amount of heating is adjusted by providing a heating time difference between both heating means to form the joint part. 2. The connection part in which an uncrosslinked synthetic resin tape is wound and laminated in a spindle shape on the conductor of the cable connection part is heated by an external heat source and high-frequency induction heating to fuse the tape wound layer to the cable insulator. In a method for forming a connection part of a rubber/plastic cable that is crosslinked and integrated, the thin wall portions at both ends of the tape winding layer are heated by the external heating source, and after a predetermined period of time, the central thick wall portion of the tape winding layer is heated with high frequency. A method for forming a connection part of a rubber/plastic cable, characterized in that heating is performed by induction heating, and the heating amount is adjusted and formed by providing a heating time difference between both heating means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59165169A JPS6145581A (en) | 1984-08-07 | 1984-08-07 | Method of forming connector of rubber and plastic cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59165169A JPS6145581A (en) | 1984-08-07 | 1984-08-07 | Method of forming connector of rubber and plastic cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6145581A JPS6145581A (en) | 1986-03-05 |
| JPH0555989B2 true JPH0555989B2 (en) | 1993-08-18 |
Family
ID=15807168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59165169A Granted JPS6145581A (en) | 1984-08-07 | 1984-08-07 | Method of forming connector of rubber and plastic cable |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6145581A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH088136B2 (en) * | 1986-12-04 | 1996-01-29 | 日立電線株式会社 | Molding method for plastic cable connection |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5654675A (en) * | 1979-10-09 | 1981-05-14 | Toshiba Corp | Magnetic tape device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5935993Y2 (en) * | 1981-02-04 | 1984-10-04 | 日東電工株式会社 | Jig for shrinking heat-shrinkable tubes |
-
1984
- 1984-08-07 JP JP59165169A patent/JPS6145581A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5654675A (en) * | 1979-10-09 | 1981-05-14 | Toshiba Corp | Magnetic tape device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6145581A (en) | 1986-03-05 |
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