JPH0737434A - Ignition cable - Google Patents
Ignition cableInfo
- Publication number
- JPH0737434A JPH0737434A JP20193793A JP20193793A JPH0737434A JP H0737434 A JPH0737434 A JP H0737434A JP 20193793 A JP20193793 A JP 20193793A JP 20193793 A JP20193793 A JP 20193793A JP H0737434 A JPH0737434 A JP H0737434A
- Authority
- JP
- Japan
- Prior art keywords
- resistance
- sheath layer
- fluororesin
- mechanical strength
- fuel
- 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.)
- Pending
Links
Landscapes
- Insulated Conductors (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、内燃機関の点火装置に
使用される高圧抵抗電線に関するもので、例えば、レ−
ス用または一般市販用として使用されるものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high-voltage resistance electric wire used in an ignition device of an internal combustion engine.
For commercial use or for general commercial use.
【0002】[0002]
【従来の技術】従来、この種の高圧電線用として、例え
ば、図3及び図4に示すものが用いられている。図3の
巻線構造タイプは、磁性コア1の上にニクロム線からな
る金属線2を密巻きし、金属線2の上に絶縁体3及びシ
リコンゴム等からなるシ−ス層4を被覆している。図4
の抵抗紐タイプはガラス繊維に抵抗材料を含侵させ形成
した抵抗紐芯5に絶縁体3及びシリコンゴム等からなる
シ−ス層4を被覆している。2. Description of the Related Art Conventionally, for this type of high voltage electric wire, for example, the one shown in FIGS. 3 and 4 has been used. In the winding structure type of FIG. 3, a metal wire 2 made of a nichrome wire is tightly wound on a magnetic core 1, and an insulator 3 and a sheath layer 4 made of silicon rubber or the like are coated on the metal wire 2. ing. Figure 4
In the resistance cord type, the resistance cord core 5 formed by impregnating the glass fiber with the resistance material is covered with the insulator 3 and the sheath layer 4 made of silicon rubber or the like.
【0003】[0003]
【発明が解決しようとする課題】しかしながら、これら
高圧電線用のシ−ス層4はシリコンゴムからなる場合に
は、引き裂き抵抗力等の機械強度が低い。このような問
題を満足するものとして、従来、部分的にEPDM(e
thylene−propylene−diene−t
erpolymer)ゴムチュ−ブ、EPDMゴムスポ
ンジ、ポリエチレンチュ−ブ等をコードプロテクターと
して使用されていたが、耐熱性・耐油性を十分に満足す
るものではなかった。また、シリコンゴムは耐熱性に優
れている反面、燃料(ガソリン等)が付着すると著しく
膨潤する問題があった。However, when the sheath layer 4 for high-voltage wires is made of silicone rubber, mechanical strength such as tear resistance is low. In order to satisfy such a problem, in the past, a partial EPDM (e
styrene-propyrene-diene-t
Although an erpolymer rubber tube, an EPDM rubber sponge, a polyethylene tube and the like have been used as cord protectors, they have not been sufficiently satisfactory in heat resistance and oil resistance. Further, while silicon rubber has excellent heat resistance, it has a problem that it is significantly swelled when fuel (gasoline, etc.) adheres to it.
【0004】本発明の目的は、シリコンゴムからなるシ
−ス材の機械的強度の向上及び燃料もしくはオイルが付
着した際の劣化を防止することである。An object of the present invention is to improve the mechanical strength of a sheath material made of silicone rubber and prevent deterioration when fuel or oil adheres.
【0005】[0005]
【課題を解決するための手段】本発明は、上記目的を達
成するため、第1図、第2図に示すように、抵抗導体1
または抵抗紐芯5、絶縁体層3およびシ−ス層4を有す
るイグニッションケーブルにおいてフッ素樹脂6を被覆
したことを特徴としている。In order to achieve the above object, the present invention provides a resistance conductor 1 as shown in FIGS. 1 and 2.
Alternatively, the ignition cable having the resistance cord core 5, the insulating layer 3 and the sheath layer 4 is characterized by being coated with the fluororesin 6.
【0006】[0006]
【作用】従来のシリコンゴムによる保護シース層に比し
て、フッ素樹脂は機械的強度が高く引き裂き強度等を向
上させることが出来る。また、フッ素樹脂は、燃料(ガ
ソリン等)が付着しても膨潤することが少なく、耐油性
を向上させることが出来る。The fluororesin has a higher mechanical strength than the conventional protective sheath layer made of silicone rubber and can improve the tear strength and the like. Further, the fluororesin is less likely to swell even if fuel (gasoline or the like) is attached thereto, and can improve oil resistance.
【0007】[0007]
【実施例】以下、本発明の一実施例を図面を参照して説
明する。第1図は本発明の第1実施例である高圧抵抗電
線を示している。この実施例では、抵抗導体1は、グラ
スファイバー性補強材にフェライト入りゴムを押し出し
被覆してなる芯線上に、ニクロム線からなる金属線2を
巻き付けることによって形成されており、抵抗導体1上
にゴム性絶縁体層3が形成されている。さらに、EPD
M絶縁体層3の上には、シリコンゴムシース層4が形成
され、さらにその外周に厚さ0.1mm以上0.3mm
以下のフッ素樹脂6が被覆されている。0.1mm未満
であると機械的強度が十分でなく(第5図参照)、0.
3mmより大きいと加工性やイグニションケーブルとし
ての屈曲性等の自由度を損なう(第6図参照)ためであ
る。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a high voltage resistance electric wire which is a first embodiment of the present invention. In this embodiment, the resistance conductor 1 is formed by winding a metal wire 2 made of a nichrome wire around a core wire formed by extruding a glass fiber reinforcing material with rubber containing ferrite and covering the resistance conductor 1. The rubber insulator layer 3 is formed. Furthermore, EPD
A silicon rubber sheath layer 4 is formed on the M insulator layer 3 and further has a thickness of 0.1 mm or more and 0.3 mm on the outer periphery thereof.
The following fluororesin 6 is coated. If it is less than 0.1 mm, the mechanical strength is insufficient (see FIG. 5), and
This is because if it is larger than 3 mm, the workability and flexibility as an ignition cable are impaired (see FIG. 6).
【0008】上記フッ素樹脂はチューブ状のものでシリ
コンゴムシース層4の外周に遊嵌した後、熱を加えるこ
とにより収縮しシース層に固定される形式のものであっ
ても良い。The fluororesin may be of a tubular shape that is loosely fitted to the outer periphery of the silicone rubber sheath layer 4 and then contracts by being heated to be fixed to the sheath layer.
【0009】第2図は本発明の第2実施例の高圧抵抗電
線を示している。この第2実施例では、抵抗紐芯5が上
記第1実施例の抵抗導体1及び金属線2と相違している
のみで、EPDMゴム性絶縁体層3、シリコンゴムシー
ス層4、フッ素樹脂6については同一構造となってい
る。FIG. 2 shows a high voltage resistance electric wire according to a second embodiment of the present invention. In the second embodiment, the resistance core 5 is different from the resistance conductor 1 and the metal wire 2 of the first embodiment, but the EPDM rubber insulator layer 3, the silicone rubber sheath layer 4, and the fluororesin 6 are used. Have the same structure.
【0010】[0010]
【発明の効果】以上説明したように、本発明のフッ素樹
脂を被覆した高圧抵抗電線は、被覆したフッ素樹脂の厚
みを薄くすることにより、加工性やイグニッションケー
ブルとしての屈曲性等の自由度を損なう問題が生じるこ
となく機械的強度の向上及び燃料等が付着した際の劣化
を防止させることができる。As described above, the high-voltage resistance electric wire coated with the fluororesin of the present invention has flexibility in workability and flexibility as an ignition cable by reducing the thickness of the fluororesin coated. It is possible to improve mechanical strength and prevent deterioration when fuel or the like adheres without causing a problem of damage.
【0011】[0011]
【第1図】本発明の第1実施例にかかるイグニッション
ケーブルの斜視図である。FIG. 1 is a perspective view of an ignition cable according to a first embodiment of the present invention.
【第2図】本発明の第2実施例にかかるイグニッション
ケーブルの拡大断面図である。FIG. 2 is an enlarged sectional view of an ignition cable according to a second embodiment of the present invention.
【第3図】従来品の斜視図である。FIG. 3 is a perspective view of a conventional product.
【第4図】別の従来品の斜視図である。FIG. 4 is a perspective view of another conventional product.
【第5図】本発明にかかるフッ素樹脂の厚みを変化させ
た場合の引張強度を示すグラフである。FIG. 5 is a graph showing the tensile strength when the thickness of the fluororesin according to the present invention is changed.
【第6図】本発明にかかるフッ素樹脂の厚みを変化させ
た場合の屈曲性を示すグラフである。FIG. 6 is a graph showing flexibility when the thickness of the fluororesin according to the present invention is changed.
1 抵抗導体 2 金属線 3 絶縁体層 4 シース層 5 抵抗紐芯 6 フッ素樹脂 1 Resistance Conductor 2 Metal Wire 3 Insulator Layer 4 Sheath Layer 5 Resistance String Core 6 Fluorine Resin
Claims (2)
電線において、前記シース層の外周にフッ素樹脂を被覆
したことを特徴とする高圧抵抗電線。1. A high-voltage resistance electric wire having a silicone rubber sheath layer, wherein the sheath layer has an outer periphery covered with a fluororesin.
ブ状のもので、熱を加えることによりチューブが収縮
し、シース層に固定することを特徴とする高圧抵抗電
線。2. A high-voltage resistance electric wire, characterized in that the fluororesin according to claim 1 is in the form of a tube, and the tube shrinks when heated and is fixed to the sheath layer.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20193793A JPH0737434A (en) | 1993-07-21 | 1993-07-21 | Ignition cable |
BR9402289A BR9402289A (en) | 1993-07-21 | 1994-07-21 | Ignition cable |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20193793A JPH0737434A (en) | 1993-07-21 | 1993-07-21 | Ignition cable |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0737434A true JPH0737434A (en) | 1995-02-07 |
Family
ID=16449260
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP20193793A Pending JPH0737434A (en) | 1993-07-21 | 1993-07-21 | Ignition cable |
Country Status (2)
Country | Link |
---|---|
JP (1) | JPH0737434A (en) |
BR (1) | BR9402289A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006014451A1 (en) | 2004-07-02 | 2006-02-09 | Federal-Mogul Corporation | Ignition wire with grafted coating and method of making |
KR100568498B1 (en) * | 2004-12-28 | 2006-04-11 | 송미애 | Ignition cable for car |
JP2008505226A (en) * | 2004-07-02 | 2008-02-21 | フェデラル−モーグル コーポレイション | Coating material for grafted ignition wire |
-
1993
- 1993-07-21 JP JP20193793A patent/JPH0737434A/en active Pending
-
1994
- 1994-07-21 BR BR9402289A patent/BR9402289A/en not_active Application Discontinuation
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006014451A1 (en) | 2004-07-02 | 2006-02-09 | Federal-Mogul Corporation | Ignition wire with grafted coating and method of making |
US7148422B2 (en) | 2004-07-02 | 2006-12-12 | Federal Mogul World Wide, Inc. | Ignition wire with grafted coating and method of making |
JP2008505226A (en) * | 2004-07-02 | 2008-02-21 | フェデラル−モーグル コーポレイション | Coating material for grafted ignition wire |
US7681305B2 (en) | 2004-07-02 | 2010-03-23 | Federal-Mogul World Wide, Inc. | Method of making ignition wire with grafted coating |
KR100568498B1 (en) * | 2004-12-28 | 2006-04-11 | 송미애 | Ignition cable for car |
Also Published As
Publication number | Publication date |
---|---|
BR9402289A (en) | 1995-03-14 |
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