JPH069316U - Molded body for connection part or terminal part of electric cable - Google Patents
Molded body for connection part or terminal part of electric cableInfo
- Publication number
- JPH069316U JPH069316U JP5166392U JP5166392U JPH069316U JP H069316 U JPH069316 U JP H069316U JP 5166392 U JP5166392 U JP 5166392U JP 5166392 U JP5166392 U JP 5166392U JP H069316 U JPH069316 U JP H069316U
- Authority
- JP
- Japan
- Prior art keywords
- conductive layer
- molded body
- electric cable
- insulating layer
- outer conductive
- 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
- Manufacturing Of Electrical Connectors (AREA)
- Processing Of Terminals (AREA)
- Cable Accessories (AREA)
Abstract
(57)【要約】
【目的】 電気ケーブルの接続部又は端末部用成形体の
外部導電層の変形を防止しつつ絶縁層をゴム注入方式に
より高い生産性で製造することができる。
【構成】 外部導電層22とその内側の絶縁層20との
端部の界面24は、内側にへこむ湾曲面に形成されてい
る。外部導電層22は、その湾曲する界面に対応する外
面22cが内側にへこむように階段状に形成されてい
る。従って、外部導電層22の湾曲面22bは、金型の
キャビティ面に接近しているため、絶縁層20の成形時
にゴムが注入されても変形することがなく、従って安定
した寸法と形状の絶縁層20を成形することができる。
(57) [Summary] [Objective] The insulating layer can be manufactured with high productivity by the rubber injection method while preventing the deformation of the outer conductive layer of the molded body for the connection part or the terminal part of the electric cable. [Structure] An interface 24 at an end portion between the external conductive layer 22 and the insulating layer 20 inside the external conductive layer 22 is formed as a curved surface that is recessed inward. The outer conductive layer 22 is formed in a stepped shape so that the outer surface 22c corresponding to the curved interface is indented. Therefore, since the curved surface 22b of the outer conductive layer 22 is close to the cavity surface of the mold, it is not deformed even when rubber is injected during the molding of the insulating layer 20, and therefore the insulating material having a stable size and shape is obtained. The layer 20 can be molded.
Description
【0001】[0001]
本考案は、電気ケーブルの接続部又は端末部に取付けて電気ケーブルを接続し たり各種電気機器に接続するのに用いられる多層成形体の改良に関するものであ る。 The present invention relates to an improvement of a multilayer molded body which is attached to an electric cable connecting portion or a terminal portion to connect an electric cable or various electric devices.
【0002】[0002]
この種の成形体は、電気ケーブルの接続部又は端末部を絶縁処理するために、 内部導電層、絶縁層、外部導電層等の多層成形体から成っている。この多層成形 体は、その電気特性を向上するために、その端部で絶縁層と外部導電層との界面 に内側にへこんだ湾曲面を有している。図4は、従来技術の多層成形体を示し、 絶縁層20と外部導電層22との界面24が内側にへこむように湾曲しているの が解る。外部導電層22の外面22aは直線状のテーパ面となっている。尚、図 4において符号18は内部導電層、また符号20aは絶縁層20の平行先端部を 示す。 This type of molded body is composed of a multilayer molded body such as an inner conductive layer, an insulating layer, and an outer conductive layer for insulating the connection portion or the terminal portion of the electric cable. In order to improve its electrical characteristics, this multilayer molded article has an inwardly curved surface at the interface between the insulating layer and the outer conductive layer at its end. FIG. 4 shows a prior art multi-layer molded body, and it can be seen that the interface 24 between the insulating layer 20 and the outer conductive layer 22 is curved so as to be indented. The outer surface 22a of the outer conductive layer 22 is a linear tapered surface. In FIG. 4, reference numeral 18 indicates an internal conductive layer, and reference numeral 20a indicates a parallel tip portion of the insulating layer 20.
【0003】 この成形体は、通常、図5に示すように、予め適宜の成形手段で成形された内 部導電層18と外部導電層22を金型内にセットし、この内外の導電層18、2 2の間にインジェクション成形又はトランスファー成形等によりゴムを矢印方向 aに注入して絶縁層20を成形することにより形成される。In this molded body, as shown in FIG. 5, usually, an inner conductive layer 18 and an outer conductive layer 22 which are previously molded by an appropriate molding means are set in a mold, and the inner and outer conductive layers 18 are formed. 22 is formed by injecting rubber in the direction of arrow a by injection molding or transfer molding to mold the insulating layer 20.
【0004】 しかし、金型内にセットされた外部導電層22は、界面となる湾曲面22bは 、肉厚が大きいため、ゴム注入時の圧力によって矢印bで示すように変形を起し 、界面が変形して電気特性を阻害する虞があった。このため、外部導電層22の 変形による絶縁層20の肉厚の低減分を見込んで絶縁層の平行先端部20aの肉 厚を予め大きく設計したり、絶縁層20を成形した後にその上に外部導電層22 を成形することが試みられている。However, since the curved surface 22b serving as an interface of the outer conductive layer 22 set in the mold has a large wall thickness, it is deformed by the pressure at the time of rubber injection as shown by an arrow b, and the interface There is a risk that the material may be deformed to impair the electrical characteristics. Therefore, the thickness of the parallel tip portion 20a of the insulating layer is designed to be large in advance in consideration of a reduction in the thickness of the insulating layer 20 due to the deformation of the outer conductive layer 22, or after the insulating layer 20 is molded, the external Attempts have been made to shape the conductive layer 22.
【0005】[0005]
しかし、絶縁層の平行先端部の肉厚を大きくする方法でも、外部導電層22の 変形量が一定でないため、寸法が安定しないで品質のばらつきが大きくなり、ま たゴムが湾曲する界面の先端まで流れ込まないため安定した形状の成形体を得る ことができなかった。 However, even if the thickness of the parallel tips of the insulating layer is increased, the amount of deformation of the outer conductive layer 22 is not constant, so the dimensions are not stable and the quality varies greatly, and the tip of the interface where the rubber bends is large. Since it did not flow into the mold, it was not possible to obtain a molded product with a stable shape.
【0006】 また、外部導電層22を絶縁層20の上に成形する方法では、外部導電層22 が薄肉であることが多く、注入方式で成形することができないので、圧縮成形に より成形しなければならないため、生産性が低い欠点があった。In addition, in the method of molding the outer conductive layer 22 on the insulating layer 20, since the outer conductive layer 22 is often thin and cannot be molded by an injection method, it must be molded by compression molding. However, there is a drawback that productivity is low.
【0007】 本考案の目的は、上記の欠点を回避し、外部導電層の変形を防止しつつ絶縁層 をゴム注入方式により高い生産性で成形することができる電気ケーブルの接続部 又は端末部用成形体を提供することにある。An object of the present invention is to avoid the above-mentioned drawbacks, and to prevent the deformation of the outer conductive layer while molding the insulating layer by the rubber injection method with high productivity, for connecting portion or terminal portion of the electric cable. It is to provide a molded body.
【0008】[0008]
本考案は、上記の課題を解決するため、電気ケーブルの導体接続部又は端末部 を覆うように取付けられる多層成形体部分から成り、この多層成形体部分の外部 導電層とその内側の絶縁層との端末の界面が内側にへこむ湾曲面に形成されてい る電気ケーブルの接続部又は端末部用成形体において、外部導電層の湾曲する界 面に対応する外面が内側にへこむように階段状又は薄肉状に形成されていること を特徴とする電気ケーブルの接続部又は端末部用成形体を提供することにある。 In order to solve the above-mentioned problems, the present invention comprises a multilayer molded body portion which is attached so as to cover a conductor connecting portion or a terminal portion of an electric cable, and an outer conductive layer of this multilayer molded body portion and an insulating layer inside thereof. In the connection part of the electric cable or the molded part for the terminal part where the interface of the end of the is formed in the inwardly curved surface, the outer surface corresponding to the curved surface of the outer conductive layer is stepped or thin so that it is indented. Another object of the present invention is to provide a molded body for a connection portion or a terminal portion of an electric cable, which is formed into a shape.
【0009】[0009]
このように、外部導電層の湾曲する界面に対応する外面が内側にへこむように 階段状又は薄肉状に形成されていると、この部分は金型のキャビティ面に接近し て変形が抑制され、従って安定した寸法と形状の絶縁層を成形することができ、 成形体の電気特性を低下することがない。 In this way, if the outer surface corresponding to the curved interface of the outer conductive layer is formed stepwise or thinly so as to indent, this portion approaches the cavity surface of the mold and deformation is suppressed, Therefore, the insulating layer having a stable size and shape can be molded, and the electrical characteristics of the molded body are not deteriorated.
【0010】[0010]
【実施例】 本考案の実施例を図面を参照して詳細にのべると、図1は本考案に係る成形体 10を用いた電気ケーブルの接続部12を示し、成形体10は、電気ケーブル1 4の接続部分16を覆うように取付けられる。Embodiment An embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 shows a connecting portion 12 of an electric cable using a molded body 10 according to the present invention. 4 is attached so as to cover the connection portion 16.
【0011】 本考案の成形体10は、多層成形体部分から成り、図示の実施例では、これら の多層成形体部分は、内部導電層18と、絶縁層20と、外部導電層22とを含 んでいる。外部導電層22とその内側の絶縁層20との端部の界面24は、内側 にへこむ湾曲面に形成されている。図2に示すように、外部導電層22は、その 湾曲する界面に対応する外面22cが内側にへこむように階段状に形成されてい る。The molded body 10 of the present invention comprises multi-layer molded body portions, and in the illustrated embodiment, these multi-layer molded body portions include an inner conductive layer 18, an insulating layer 20, and an outer conductive layer 22. I'm out. The interface 24 at the end of the outer conductive layer 22 and the insulating layer 20 inside thereof is formed as a curved surface that is recessed inward. As shown in FIG. 2, the outer conductive layer 22 is formed in a stepped shape so that the outer surface 22c corresponding to the curved interface is indented.
【0012】 このように、外部導電層22の湾曲する界面24に対応する外面22cが内側 にへこむように階段状に形成されていると、この部分は金型のキャビティ面に接 近するので、絶縁層20を成形する際にゴムが軸線方向(矢印x方向)に注入さ れてもこの注入方向に垂直なy方向では金型のキャビティ面がストッパとなって 界面24に対応する湾曲面22bが変形することがなく、従って絶縁層20を安 定した寸法と形状で成形することができ、成形体10の電気特性を低下すること がない。As described above, when the outer surface 22c corresponding to the curved interface 24 of the outer conductive layer 22 is formed in a stepped shape so as to be dented inward, this portion approaches the cavity surface of the mold, Even if rubber is injected in the axial direction (arrow x direction) when molding the insulating layer 20, the cavity surface of the mold serves as a stopper in the y direction perpendicular to this injection direction. Does not deform, and therefore the insulating layer 20 can be molded with a stable size and shape, and the electrical characteristics of the molded body 10 are not deteriorated.
【0013】 図3は本考案の他の実施例を示し、この実施例では、外部導電層22の湾曲す る界面24に対応する外面22dが内側にへこむように薄肉状に形成されている 。この実施例でも、この湾曲面22aは同様に金型のキャビティ面に接近するの で、絶縁層20を成形する際にゴムが注入されてもキャビティ面がストッパとな って変形することがなく、従って絶縁層20を同様に安定した寸法と形状で成形 することができる。FIG. 3 shows another embodiment of the present invention. In this embodiment, the outer surface 22d corresponding to the curved interface 24 of the outer conductive layer 22 is formed thin so as to be recessed inward. In this embodiment as well, since the curved surface 22a similarly approaches the cavity surface of the mold, even if rubber is injected when molding the insulating layer 20, the cavity surface does not become a stopper and deform. Therefore, the insulating layer 20 can be similarly shaped with a stable size and shape.
【0014】 尚、上記実施例では、成形体10が軸線方向に延びる直線状であったが、本考 案は、外部導電層22と絶縁層20との間に湾曲する界面24を有するものであ れば、それ以外にL字形、T字形、π字形等の適宜の形態の成形体に適用するこ とができる。It should be noted that in the above embodiment, the molded body 10 was a straight line extending in the axial direction, but in the present invention, the curved interface 24 is provided between the external conductive layer 22 and the insulating layer 20. If it exists, it can be applied to a molded article having an appropriate shape such as L-shape, T-shape, and π-shape.
【0015】[0015]
本考案によれば、上記のように、外部導電層の湾曲する界面に対応する外面が 階段状又は内側にへこんで薄肉状に形成されているので、外部導電層のこの部分 は金型のキャビティ面に接近しているため絶縁層の成形時にゴムが注入されても 変形することがなく、従って安定した寸法と形状の絶縁層を成形することができ 、成形体の電気特性を低下することがない。 According to the present invention, as described above, since the outer surface corresponding to the curved interface of the outer conductive layer is formed stepwise or indented in a thin shape, this portion of the outer conductive layer is formed in the mold cavity. Since it is close to the surface, it will not be deformed even if rubber is injected during the molding of the insulating layer, so it is possible to mold an insulating layer with a stable size and shape, and to reduce the electrical characteristics of the molded body. Absent.
【図1】本考案に係る成形体を用いた電気ケーブルの接
続部の一部分を断面で示す側面図である。FIG. 1 is a cross-sectional side view showing a part of a connecting portion of an electric cable using a molded body according to the present invention.
【図2】本考案の一実施例による成形体の一部の拡大断
面図である。FIG. 2 is an enlarged cross-sectional view of a part of a molded body according to an embodiment of the present invention.
【図3】本考案の他の実施例による成形体の一部の拡大
断面図である。FIG. 3 is an enlarged cross-sectional view of a part of a molded body according to another embodiment of the present invention.
【図4】従来技術の成形体の一部の拡大断面図である。FIG. 4 is an enlarged cross-sectional view of a part of a conventional molded body.
【図5】図4の成形体を製造する状態を示す断面図であ
る。5 is a cross-sectional view showing a state where the molded body of FIG. 4 is manufactured.
10 成形体 12 電気ケーブルの接続部 14 電気ケーブル 16 接続部分 18 内部導電層 20 絶縁層 22 外部導電層 22b 湾曲面 22c 階段状外面 22d 薄肉状外面 24 湾曲した界面 DESCRIPTION OF SYMBOLS 10 Molded body 12 Connection part of electric cable 14 Electric cable 16 Connection part 18 Internal conductive layer 20 Insulating layer 22 External conductive layer 22b Curved surface 22c Stepped outer surface 22d Thin outer surface 24 Curved interface
Claims (1)
覆うように取付けられる多層成形体部分から成り、前記
多層成形体部分の外部導電層とその内側の絶縁層との端
末の界面が内側にへこむ湾曲面に形成されている電気ケ
ーブルの接続部又は端末部用成形体において、前記外部
導電層の前記湾曲する界面に対応する外面が内側にへこ
むように階段状又は薄肉状に形成されていることを特徴
とする電気ケーブルの接続部又は端末部用成形体。1. A multilayer molded body portion attached so as to cover a conductor connecting portion or a terminal portion of an electric cable, wherein an end interface between an outer conductive layer of the multilayer molded body portion and an insulating layer inside thereof is inward. In the molded portion for connecting portion or terminal portion of the electric cable formed on the concave curved surface, the outer surface corresponding to the curved interface of the outer conductive layer is formed in a stepped shape or a thin wall shape so as to be dented inward. A molded body for a connecting portion or a terminal portion of an electric cable, which is characterized in that.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5166392U JPH069316U (en) | 1992-06-30 | 1992-06-30 | Molded body for connection part or terminal part of electric cable |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5166392U JPH069316U (en) | 1992-06-30 | 1992-06-30 | Molded body for connection part or terminal part of electric cable |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH069316U true JPH069316U (en) | 1994-02-04 |
Family
ID=12893124
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5166392U Pending JPH069316U (en) | 1992-06-30 | 1992-06-30 | Molded body for connection part or terminal part of electric cable |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH069316U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6435086U (en) * | 1987-08-25 | 1989-03-03 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5859030A (en) * | 1981-09-29 | 1983-04-07 | Tokyo Electric Power Co Inc:The | Method of forming power cable joined section insulated with rubber or plastics |
JPS6260414A (en) * | 1985-09-06 | 1987-03-17 | 東京電力株式会社 | Manufacturing extruding mold linear connector for cv cable |
-
1992
- 1992-06-30 JP JP5166392U patent/JPH069316U/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5859030A (en) * | 1981-09-29 | 1983-04-07 | Tokyo Electric Power Co Inc:The | Method of forming power cable joined section insulated with rubber or plastics |
JPS6260414A (en) * | 1985-09-06 | 1987-03-17 | 東京電力株式会社 | Manufacturing extruding mold linear connector for cv cable |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6435086U (en) * | 1987-08-25 | 1989-03-03 | ||
JPH0421512Y2 (en) * | 1987-08-25 | 1992-05-15 |
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