WO2015045837A1 - Insulated wire and production method therefor - Google Patents
Insulated wire and production method therefor Download PDFInfo
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- WO2015045837A1 WO2015045837A1 PCT/JP2014/073714 JP2014073714W WO2015045837A1 WO 2015045837 A1 WO2015045837 A1 WO 2015045837A1 JP 2014073714 W JP2014073714 W JP 2014073714W WO 2015045837 A1 WO2015045837 A1 WO 2015045837A1
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- insulation
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- peripheral surface
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/06—Insulating conductors or cables
- H01B13/14—Insulating conductors or cables by extrusion
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/24—Devices affording localised protection against mechanical force or pressure
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Abstract
Provided are a readily bendable insulated wire (W) and a production method therefor. The insulated wire (W) is provided with a central conductor (10) and insulation (20). The insulation (20) has a bending assist portion (24) with a low flexural rigidity. The bending assist portion (24) has a shape wherein a mountain portion (26) and a valley portion (28) are arranged alternately in an axial direction. The mountain portion (26) has a shape bulging in such a way that the internal peripheral surface thereof separates from the outer peripheral surface of the central conductor (10) outward in a radial direction. At least part of the valley portion (28) has an internal diameter allowing the central conductor (10) to be constricted from the radially outer side. This insulated wire (W) can be produced by disposing around insulated wire material a mold which has an internal surface containing a portion with a shape bulging outwardly in the radial direction, heating the insulation (20) inside the mold, and applying a pressure difference between the interior and the exterior thereof to form a bending assist portion (24) in a shape conforming to the internal surface of the mold.
Description
本発明は、自動車等に配索される絶縁被覆電線及びその製造方法に関する。
The present invention relates to an insulated coated electric wire routed in an automobile or the like and a manufacturing method thereof.
絶縁被覆電線は、中心導体と、これを被覆する絶縁被覆と、を備える。このような絶縁被覆電線が自動車等に配索される場合、その配索場所に適した形状となるように適当な箇所で曲げられながら使用される。しかしながら、例えば互いに近接するバッテリ端子を接続する電線のように、大電流を流すために大きな径を与えられた電線では、絶縁被覆の剛性が高いために容易に曲げることができず、その配線作業が困難であるという課題を有している。
The insulated wire includes a central conductor and an insulation coating that covers the central conductor. When such an insulated wire is routed in an automobile or the like, it is used while being bent at an appropriate location so as to have a shape suitable for the location. However, for example, wires that are connected to battery terminals that are close to each other and that have a large diameter for flowing a large current cannot be bent easily because the insulation coating has high rigidity. Has the problem of being difficult.
このような課題を解決するための手段として、特許文献１は、絶縁被覆電線の屈曲予定部の被覆材を除去することと、その被覆材を除去した部分をプロテクタの屈曲部に沿わせながら電線をプロテクタに装着することと、を含む方法を開示する。
As means for solving such a problem, Patent Document 1 discloses that an electric wire is removed while removing a covering material of a portion to be bent of an insulation-coated electric wire, and keeping the portion from which the covering material is removed along the bent portion of the protector. Attaching to a protector.
しかし、前記方法が要する作業、すなわち、屈曲予定箇所における絶縁被覆を除去する作業と、その除去した箇所を当該電線とは別のプロテクタに装着する作業と、を配線現場で行うのは極めて面倒である。このことは、配線作業の効率の向上の妨げとなる。かかる不都合は、当該電線の曲げ予定箇所が多いほど深刻となる。
However, it is extremely troublesome to carry out the work required by the above method, that is, the work of removing the insulation coating at the planned bending point and the work of mounting the removed part on a protector different from the electric wire at the wiring site. is there. This hinders improvement in efficiency of wiring work. Such inconvenience becomes more serious as the number of planned bending portions of the wire increases.
本発明の目的は、面倒な作業及び複雑な構造を要することなく適当な部位を曲げることが可能な絶縁被覆電線及び当該絶縁被覆電線を容易に製造することが可能な方法を提供することにある。
An object of the present invention is to provide an insulated wire that can bend an appropriate part without requiring a troublesome work and a complicated structure, and a method that can easily manufacture the insulated wire. .
本発明が提供する絶縁被覆電線は、中心導体と、絶縁性を有する合成樹脂材料からなり、前記中心導体を被覆する絶縁被覆と、を備える。前記絶縁被覆は、その軸方向の一部の箇所に形成されて他の部分よりも曲げ剛性の低い曲げ補助部を有する。この曲げ補助部は、前記中心導体の外周面から前記絶縁被覆電線の径方向の外側に離間するように膨出する複数の山部と、この山部の外径よりも小さい外径と当該山部の内径よりも小さな内径とを有する複数の谷部とが軸方向に交互に並ぶ形状を有する。さらに、前記谷部のうちの少なくとも一部の内径は、当該谷部が前記中心導体をその径方向の外側から拘束するように当該中心導体の外周面に全周にわたり接触することを可能にする径である。
The insulation coated electric wire provided by the present invention includes a center conductor and an insulation coating made of a synthetic resin material having insulation properties and covering the center conductor. The insulating coating has a bending auxiliary portion formed at a part of the axial direction thereof and having a lower bending rigidity than the other part. The bending auxiliary portion includes a plurality of peak portions that bulge from the outer peripheral surface of the center conductor to the outside in the radial direction of the insulation-coated wire, an outer diameter smaller than the outer diameter of the peak portion, and the peak. A plurality of troughs having an inner diameter smaller than the inner diameter of the portion are alternately arranged in the axial direction. Furthermore, the inner diameter of at least a portion of the valley allows the valley to contact the outer peripheral surface of the central conductor over the entire circumference so that the valley constrains the central conductor from outside in the radial direction. Is the diameter.
以上のように、本発明によれば、面倒な作業及び複雑な構造を要することなく適当な部位を曲げることが可能な絶縁被覆電線及び当該絶縁被覆電線を容易に製造することが可能な方法が提供される。
As described above, according to the present invention, there is provided an insulated wire that can bend an appropriate portion without requiring a troublesome work and a complicated structure, and a method that can easily manufacture the insulated wire. Provided.
本発明の好ましい実施の形態を、図面を参照しながら説明する。
A preferred embodiment of the present invention will be described with reference to the drawings.
図１及び図２は、本発明の実施の形態に係る絶縁被覆電線Ｗを示す。この絶縁被覆電線Ｗは、中心導体１０と、これを被覆する絶縁被覆２０と、を備える。前記中心導体１０は、高い導電性を有し、例えば、銅などの良導電性金属材料からなる単一の素線または互いに束ねられた複数の素線により構成される。当該中心導体１０が複数の素線を含む場合に、後述の効果はより有効となる。絶縁被覆２０は、絶縁性を有する合成樹脂材料からなる。この絶縁被覆２０の具体的な材質は特に限定されないが、後述のようにして絶縁被覆電線Ｗの製造を行うためには、熱可塑性樹脂であることが、好ましい。
1 and 2 show an insulated wire W according to an embodiment of the present invention. This insulation-coated electric wire W includes a central conductor 10 and an insulation coating 20 that covers the central conductor 10. The central conductor 10 has high conductivity, and is composed of, for example, a single strand made of a highly conductive metal material such as copper or a plurality of strands bundled together. When the center conductor 10 includes a plurality of strands, the effects described later are more effective. The insulating coating 20 is made of a synthetic resin material having insulating properties. Although the specific material of this insulation coating 20 is not specifically limited, In order to manufacture the insulation coating electric wire W as mentioned later, it is preferable that it is a thermoplastic resin.
この絶縁被覆電線Ｗの特徴として、前記絶縁被覆２０は、その軸方向の一部の箇所に曲げ補助部２４を有する。この曲げ補助部２４は、絶縁被覆２０のうちの当該曲げ補助部２４以外の部分、すなわち当該絶縁被覆２０の内周面が中心導体１０の外周面に密着または略密着する通常径部分２２よりも曲げ剛性を低くする形状を有する。
As a characteristic of this insulated wire W, the insulation coating 20 has a bending auxiliary portion 24 at a part of its axial direction. The bending auxiliary portion 24 is part of the insulating coating 20 other than the bending auxiliary portion 24, that is, the normal diameter portion 22 in which the inner peripheral surface of the insulating coating 20 is in close contact with or substantially in close contact with the outer peripheral surface of the center conductor 10. It has a shape that lowers the bending rigidity.
具体的に、この実施の形態に係る曲げ補助部２４は、複数の大径部すなわち山部２６と複数の小径部すなわち谷部２８とが軸方向に交互に並ぶ形状、すなわち、いわゆる蛇腹状をなす。前記各山部２６は、その内周面が前記中心導体１０の外周面から径方向の外側に大きく離間するように当該径方向の外側に膨出する形状を有する。一方、前記各谷部２８は、前記山部２６の外径よりも小さい外径と、前記山部２６の内径よりも小さい内径と、を有する。すなわち、この実施形態に係る曲げ補助部２４は、その内径及び外径が軸方向について繰り返し増減する形状を有する。
Specifically, the bending auxiliary portion 24 according to this embodiment has a shape in which a plurality of large diameter portions, that is, peak portions 26 and a plurality of small diameter portions, that is, valley portions 28 are alternately arranged in the axial direction, that is, a so-called bellows shape. Eggplant. Each of the peak portions 26 has a shape that bulges outward in the radial direction so that the inner peripheral surface thereof is largely separated from the outer peripheral surface of the center conductor 10 in the radial direction. On the other hand, each of the valley portions 28 has an outer diameter smaller than the outer diameter of the peak portion 26 and an inner diameter smaller than the inner diameter of the peak portion 26. That is, the bending auxiliary part 24 according to this embodiment has a shape in which the inner diameter and the outer diameter repeatedly increase and decrease in the axial direction.
さらに、この曲げ補助部２４の特徴として、前記各谷部２８の内周面２８ａが全周にわたって中心導体１０の外周面に接触するように、当該谷部２８の内径が設定されている。具体的に、この実施の形態に係る谷部２８の内周面２８ａは、中心導体１０の外周面に向かって凸となるような曲線状の断面形状を有しており、その内向きの凸の頂点部分すなわち最小径部分が前記中心導体１０の外周面に接触している。
Furthermore, as a feature of the bending auxiliary portion 24, the inner diameter of the valley portion 28 is set so that the inner peripheral surface 28a of each valley portion 28 contacts the outer peripheral surface of the center conductor 10 over the entire circumference. Specifically, the inner peripheral surface 28a of the valley portion 28 according to this embodiment has a curved cross-sectional shape that is convex toward the outer peripheral surface of the central conductor 10, and the inward convex Of the central conductor 10 is in contact with the outer peripheral surface of the central conductor 10.
この絶縁被覆電線Ｗでは、曲げ補助部２４における複数の山部２６がそれぞれ中心導体１０から径方向の外側に離間しているため、曲げ補助部２４以外の通常径部分に比べ、小さな曲げ荷重で当該曲げ補助部２４に対応する部分に曲げ変形を生じさせることができる。このことは、配線作業の容易化に寄与する。しかも、この絶縁被覆電線Ｗの曲げ易さは、当該絶縁被覆電線Ｗを構成する絶縁被覆２０そのものに形成された曲げ補助部２４の形状によって与えられるものなので、従来のように当該絶縁被覆の一部を除去する作業やその除去した部位を当該絶縁被覆電線とは別の部材であるプロテクタに装着する作業は不要である。従って、この絶縁被覆電線Ｗの配線のための作業は飛躍的に容易化される。
In this insulation-coated electric wire W, since the plurality of peak portions 26 in the bending auxiliary portion 24 are separated from the central conductor 10 in the radial direction, the bending load is smaller than that of the normal diameter portion other than the bending auxiliary portion 24. Bending deformation can be caused in a portion corresponding to the bending auxiliary portion 24. This contributes to facilitating wiring work. In addition, the ease of bending of the insulated wire W is given by the shape of the bending auxiliary portion 24 formed on the insulation coating 20 itself that constitutes the insulated wire W. The operation | work which removes a part and the operation | work which mounts the removed site | part to the protector which is a member different from the said insulation coating electric wire are unnecessary. Therefore, the work for wiring the insulated wire W is greatly facilitated.
その一方、各谷部２８の内側面が中心導体１０の外周面に対して全周にわたり接触することにより、当該中心導体１０を径方向の外側から拘束しているため、前記山部２６が前記中心導体１０の外周面から離間するように膨出しているにもかかわらず、当該中心導体１０が絶縁被覆２０の曲げ補助部２４に対して径方向に相対変位することを抑止することができる。従って、例えば前記中心導体１０が複数の素線からなる場合に、車の振動等に起因して当該素線がばらけるといった不都合を防ぐことが可能である。つまり、この曲げ補助部２４の形状は、当該曲げ補助部２４での絶縁被覆電線Ｗの曲げ易さの向上と、当該曲げ補助部２４に対する中心導体１０の径方向の相対変位の抑止と、を両立させることを可能にする。
On the other hand, since the inner side surface of each valley portion 28 is in contact with the outer peripheral surface of the center conductor 10 over the entire circumference, the center conductor 10 is restrained from the outside in the radial direction. Although the center conductor 10 bulges away from the outer peripheral surface of the center conductor 10, it is possible to prevent the center conductor 10 from being displaced relative to the bending auxiliary portion 24 of the insulating coating 20 in the radial direction. Therefore, for example, when the central conductor 10 is composed of a plurality of strands, it is possible to prevent the disadvantage that the strands are scattered due to vehicle vibration or the like. That is, the shape of the bending auxiliary portion 24 is to improve the bendability of the insulated coated wire W at the bending auxiliary portion 24 and to suppress the relative displacement in the radial direction of the center conductor 10 with respect to the bending auxiliary portion 24. It is possible to make it compatible.
本発明において、前記谷部２８の内径は全て同一である必要はない。例えば、当該谷部２８のうちの一部の内径が中心導体１０の外径よりも大きくて当該谷部２８の内周面が当該中心導体１０の外周面から径方向の外側に離間していても、他の谷部２８の内周面が当該中心導体１０の外周面に接触していてこれを径方向外側から拘束することにより、当該中心導体１０の絶縁被覆２０に対する相対変位を抑止することが可能である。
In the present invention, the inner diameters of the valley portions 28 need not all be the same. For example, the inner diameter of a part of the valley portion 28 is larger than the outer diameter of the center conductor 10, and the inner peripheral surface of the valley portion 28 is spaced radially outward from the outer peripheral surface of the center conductor 10. In addition, the inner peripheral surface of the other valley portion 28 is in contact with the outer peripheral surface of the central conductor 10 and restrains it from the outside in the radial direction, thereby suppressing the relative displacement of the central conductor 10 with respect to the insulating coating 20. Is possible.
また、谷部２８の内周面の断面形状は、図示の内周面２８ａのように内向きに凸の曲線に限定されない。例えば、均一な内径を有する円筒状の内周面であってもよい。しかし、前記のような凸の曲線であってその頂点部分すなわち最小径部分が前記中心導体１０に接触するものは、曲げ補助部２４の十分な柔軟性（低い曲げ剛性）を確保しながら中心導体１０を径方向の外側から効果的に拘束できる利点がある。
Further, the cross-sectional shape of the inner peripheral surface of the valley portion 28 is not limited to the inwardly convex curve like the illustrated inner peripheral surface 28a. For example, a cylindrical inner peripheral surface having a uniform inner diameter may be used. However, the convex curve as described above having the apex portion, that is, the minimum diameter portion in contact with the center conductor 10, ensures sufficient flexibility (low bending rigidity) of the bending auxiliary portion 24 while maintaining the center conductor. There is an advantage that 10 can be effectively restrained from the outside in the radial direction.
以上説明した絶縁被覆電線Ｗは、例えば以下の工程を含む方法により、合理的かつ容易に製造されることが可能である。
The insulation-coated electric wire W described above can be manufactured reasonably and easily, for example, by a method including the following steps.
１）予備工程（絶縁被覆電線素材準備工程）
この工程では、前記の中心導体１０と絶縁被覆２０とを有する通常の（すなわち絶縁被覆２０の肉厚及び径が均一の）絶縁被覆電線素材が準備される。この絶縁被覆電線素材は、通常の被覆電線と同様、例えば押出し成形によって生産されることが可能である。前記絶縁被覆２０の材質としては、後の加熱状態での成形のために、絶縁性に加えて熱可塑性を有する樹脂が用いられる。具体的には、ポリアミド樹脂、ポリプロピレン樹脂、ポリエチレン樹脂、ポリエチレンテレフタレート樹脂、架橋ポリエチレン、エチレン－エチルアクリルレート共重合樹脂、サーモプラスチックポリウレタン共重合樹脂、塩化ビニルなど、が好適である。 1) Preliminary process (insulation coated wire material preparation process)
In this step, an ordinary insulated wire material having thecentral conductor 10 and the insulation coating 20 (that is, the thickness and the diameter of the insulation coating 20 are uniform) is prepared. This insulating coated electric wire material can be produced by, for example, extrusion molding in the same manner as a normal coated electric wire. As the material of the insulating coating 20, a resin having thermoplasticity in addition to insulating properties is used for later molding in a heated state. Specifically, polyamide resin, polypropylene resin, polyethylene resin, polyethylene terephthalate resin, cross-linked polyethylene, ethylene-ethyl acrylate copolymer resin, thermoplastic polyurethane copolymer resin, vinyl chloride and the like are suitable.
この工程では、前記の中心導体１０と絶縁被覆２０とを有する通常の（すなわち絶縁被覆２０の肉厚及び径が均一の）絶縁被覆電線素材が準備される。この絶縁被覆電線素材は、通常の被覆電線と同様、例えば押出し成形によって生産されることが可能である。前記絶縁被覆２０の材質としては、後の加熱状態での成形のために、絶縁性に加えて熱可塑性を有する樹脂が用いられる。具体的には、ポリアミド樹脂、ポリプロピレン樹脂、ポリエチレン樹脂、ポリエチレンテレフタレート樹脂、架橋ポリエチレン、エチレン－エチルアクリルレート共重合樹脂、サーモプラスチックポリウレタン共重合樹脂、塩化ビニルなど、が好適である。 1) Preliminary process (insulation coated wire material preparation process)
In this step, an ordinary insulated wire material having the
２）金型配置工程及び曲げ補助部形成工程
これらの工程では、前記絶縁被覆電線素材の軸方向の少なくとも一部の箇所の周囲に、前記曲げ補助部２４を形成するための金型が配置され、その状態で曲げ補助部２４の形成が行われる。換言すれば、当該金型の内部に前記絶縁被覆電線素材の軸方向の少なくとも一部が配置され、当該金型の内部で前記曲げ補助部２４の形成が行われる。この曲げ補助部２４の形成は、当該曲げ補助部２４の形成箇所における絶縁被覆２０の内側の圧力と外側の圧力（すなわち金型内の圧力）との間に前者の圧力の方が高いような圧力差を与えることにより、行われる。このような圧力差を利用した曲げ補助部２４の形成は、例えば、次の真空成形が好適である。 2) Mold placement step and bending auxiliary portion forming step In these steps, a die for forming the bendingauxiliary portion 24 is arranged around at least a part of the insulation-coated wire material in the axial direction. In this state, the bending auxiliary portion 24 is formed. In other words, at least a part of the insulating coated wire material in the axial direction is disposed inside the mold, and the bending auxiliary portion 24 is formed inside the mold. The formation of the bending auxiliary portion 24 is such that the former pressure is higher between the pressure inside the insulating coating 20 and the pressure outside the insulating coating 20 (that is, pressure in the mold) at the location where the bending auxiliary portion 24 is formed. This is done by giving a pressure difference. For example, the following vacuum forming is suitable for forming the bending auxiliary portion 24 using such a pressure difference.
これらの工程では、前記絶縁被覆電線素材の軸方向の少なくとも一部の箇所の周囲に、前記曲げ補助部２４を形成するための金型が配置され、その状態で曲げ補助部２４の形成が行われる。換言すれば、当該金型の内部に前記絶縁被覆電線素材の軸方向の少なくとも一部が配置され、当該金型の内部で前記曲げ補助部２４の形成が行われる。この曲げ補助部２４の形成は、当該曲げ補助部２４の形成箇所における絶縁被覆２０の内側の圧力と外側の圧力（すなわち金型内の圧力）との間に前者の圧力の方が高いような圧力差を与えることにより、行われる。このような圧力差を利用した曲げ補助部２４の形成は、例えば、次の真空成形が好適である。 2) Mold placement step and bending auxiliary portion forming step In these steps, a die for forming the bending
この真空成形は、絶縁被覆２０の外側空間を減圧することにより前記圧力差を形成するものであり、例えば図３～図６に示すような上金型３０Ａ及び下金型３０Ｂ（図５は下金型３０Ｂのみ、図６は上金型３０Ａのみ図示）の使用により、実現される。
In this vacuum forming, the pressure difference is formed by reducing the outer space of the insulating coating 20, and for example, an upper mold 30A and a lower mold 30B as shown in FIGS. This is realized by using only the mold 30B and FIG. 6 shows only the upper mold 30A.
上金型３０Ａ及び下金型３０Ｂは、図３～図６に示す絶縁被覆電線素材Ｗ′のうちの曲げ補助部形成部位及びその近傍部位のみを上下から挟みこむ形状を有する。具体的に、両金型３０Ａ，３０Ｂの軸方向両端部は、前記絶縁被覆電線素材Ｗ′の外周面に対応する断面半円状の半割内周面３２をそれぞれ有し、軸方向中央部分は、形成目標となる曲げ補助部２４の外側面形状に対応した形状の凹凸内面３４を有する。すなわち、この凹凸内面３４は、前記山部２６の外周面に対応した寸法で径方向の外向きに膨出する膨出部３６と、前記谷部２８の外周面に対応した内径を有する接触部３８と、を有する。
The upper mold 30A and the lower mold 30B have a shape in which only the bending auxiliary portion forming portion and the vicinity thereof are sandwiched from above and below in the insulated coated wire material W ′ shown in FIGS. Specifically, both end portions in the axial direction of both molds 30A and 30B respectively have a semicircular inner peripheral surface 32 having a semicircular cross section corresponding to the outer peripheral surface of the insulating coated wire material W ′, and the axial center portion. Has an uneven inner surface 34 having a shape corresponding to the outer surface shape of the bending auxiliary portion 24 to be formed. That is, the concave / convex inner surface 34 has a bulging portion 36 bulging outward in the radial direction with a dimension corresponding to the outer peripheral surface of the peak portion 26, and a contact portion having an inner diameter corresponding to the outer peripheral surface of the valley portion 28. 38.
具体的に前記接触部３８の内径は、この接触部３８が前記絶縁被覆電線素材Ｗ′の絶縁被覆２０の外周面に対して接触することが可能な寸法、すなわち、当該絶縁被覆２０の外径と同等またはこれよりも小さい寸法、に設定されている。この寸法は、当該接触部３８が確実に前記絶縁被覆２０の外周面に対して接触できるように、当該絶縁被覆２０の外径よりも小さい寸法、すなわち、当該接触部３８が当該絶縁被覆２０を径方向の内向きに圧縮変形させながら当該絶縁被覆２０の外周面に圧接する寸法が、より好ましい。具体的な寸法は特に限定されないが、一般には、当該絶縁被覆２０の外径と当該接触部３８の内径との差が当該絶縁被覆２０の厚みの０～５０％の範囲内で設定されるのが、好ましい。
Specifically, the inner diameter of the contact portion 38 is a dimension that allows the contact portion 38 to come into contact with the outer peripheral surface of the insulating coating 20 of the insulating coated wire material W ′, that is, the outer diameter of the insulating coating 20. Is set to the same or smaller dimensions. This dimension is smaller than the outer diameter of the insulating coating 20 so that the contact portion 38 can reliably contact the outer peripheral surface of the insulating coating 20, that is, the contact portion 38 attaches the insulating coating 20. The dimension which press-contacts to the outer peripheral surface of the said insulation coating 20 is more preferable, compressing and deforming inward in radial direction. Although the specific dimensions are not particularly limited, generally, the difference between the outer diameter of the insulating coating 20 and the inner diameter of the contact portion 38 is set within a range of 0 to 50% of the thickness of the insulating coating 20. Is preferred.
前記各金型３０Ａ，３０Ｂの外側面には、図略の真空ポンプに接続される部分である凹部３１が形成され、この凹部３１の底面と前記内側面３２の複数の箇所（図４及び図５に示す例では前記山部２６に対応する膨出部３６すなわち径方向外向きに大きく膨出する内面）とを連通するように複数のエア吸引孔３５が各金型３０Ａ，３０Ｂが形成されている。従って、各エア吸引孔３５に前記真空ポンプが接続されることが可能である。
A concave portion 31 which is a portion connected to a vacuum pump (not shown) is formed on the outer surface of each of the molds 30A and 30B, and a plurality of locations on the bottom surface of the concave portion 31 and the inner side surface 32 (FIG. 4 and FIG. In the example shown in FIG. 5, a plurality of air suction holes 35 are formed in the molds 30A and 30B so as to communicate with the bulging portion 36 corresponding to the mountain portion 26, that is, the inner surface that bulges greatly outward in the radial direction. ing. Therefore, the vacuum pump can be connected to each air suction hole 35.
真空成形の際には、前記上金型３０Ａ及び前記下金型３０Ｂのうちその軸方向両端部に形成された内周面３２と、前記凹凸内面３４における複数の接触部３８と、がそれぞれ前記絶縁被覆電線素材Ｗ′の外周面（絶縁被覆２０の外周面）に全周にわたり密着するように、両金型３０Ａ，３０Ｂ同士の間に前記絶縁被覆電線素材Ｗ′が挟み込まれ、この状態で両金型３０Ａ，３０Ｂ同士が図略のボルトにより締結される。換言すれば、絶縁被覆電線素材Ｗ′の周囲に前記両金型３０Ａ，３０Ｂが配置される。
At the time of vacuum forming, the inner peripheral surface 32 formed at both axial ends of the upper mold 30A and the lower mold 30B, and the plurality of contact portions 38 on the concave / convex inner surface 34, respectively, The insulation coated wire material W ′ is sandwiched between the molds 30A and 30B so as to be in close contact with the outer circumferential surface of the insulation coated wire material W ′ (the outer circumferential surface of the insulation coating 20). Both molds 30A and 30B are fastened by bolts not shown. In other words, both the molds 30A and 30B are arranged around the insulating coated wire material W ′.
この状態で、例えば前記金型３０Ａ，３０Ｂに内蔵されたヒータにより前記絶縁被覆２０を構成する熱可塑性樹脂が加熱される。この温度は、後述の圧力差の付与によって、当該熱可塑性樹脂が膨張して前記金型３０Ａ，３０Ｂの凹凸内面３４に沿う形状に変形可能となる程度まで軟化する温度に設定される。その具体的な値は当該熱可塑性樹脂の材質や厚みに応じて適宜設定されることができる。例えば、絶縁被覆２０の材質が塩化ビニルで肉厚１ｍｍ程度である場合には１００°Ｃ～１３０°Ｃ程度まで加熱すればよい。すなわち、この熱可塑性樹脂の加熱温度は、当該熱可塑性樹脂からなる絶縁被覆２０が前記凹凸内面３４に対応する形状まで変形することを可能にする程度まで軟化するように設定さればよく、その具体的な温度は限定されない。
In this state, for example, the thermoplastic resin constituting the insulating coating 20 is heated by a heater built in the molds 30A and 30B. This temperature is set to a temperature at which the thermoplastic resin expands and becomes soft enough to be deformed into a shape along the concave and convex inner surfaces 34 of the molds 30 </ b> A and 30 </ b> B by applying a pressure difference described later. The specific value can be appropriately set according to the material and thickness of the thermoplastic resin. For example, when the insulating coating 20 is made of vinyl chloride and has a thickness of about 1 mm, it may be heated to about 100 ° C. to 130 ° C. That is, the heating temperature of the thermoplastic resin may be set so as to be softened to such an extent that the insulating coating 20 made of the thermoplastic resin can be deformed to a shape corresponding to the uneven inner surface 34. The typical temperature is not limited.
このような加熱状態で、さらに、前記真空ポンプが作動して上金型３０Ａ及び下金型３０Ｂの内部のエアを吸引することにより負圧を形成する。これにより、当該金型３０Ａ，３０Ｂ内のエアの圧力（すなわち絶縁被覆２０のすぐ外側のエアの圧力）Ｐｏと、絶縁被覆２０の内側の圧力Ｐｉとの間にＰｏ＜Ｐｉ（＝大気圧）となる圧力差（＝Ｐｉ－Ｐｏ）が与えられる。この圧力差により、金型３０Ａ，３０Ｂ内で加熱されて軟化した絶縁被覆２０が金型３０Ａ，３０Ｂの内側面に密着する形状、すなわち、膨出部３６と接触部３８とが交互に並ぶ凹凸内面３４のうちの膨出部３６の領域で径方向の外向きに膨出する形状、に変形させられる。これにより、通常径部分２２よりも薄肉でかつ前記山部２６および谷部２８を含む曲げ補助部２４が形成される。このようにして、当該曲げ補助部２４をもつ絶縁被覆電線Ｗが製造される。
In such a heating state, the vacuum pump is further operated to suck the air inside the upper mold 30A and the lower mold 30B to form a negative pressure. Thereby, Po <Pi (= atmospheric pressure) between the pressure of air in the molds 30A and 30B (that is, the pressure of air just outside the insulating coating 20) Po and the pressure Pi inside the insulating coating 20. A pressure difference (= Pi−Po) is given. Due to this pressure difference, the insulating coating 20 heated and softened in the molds 30A and 30B is in close contact with the inner side surfaces of the molds 30A and 30B, that is, irregularities in which the bulging portions 36 and the contact portions 38 are alternately arranged. In the region of the bulging portion 36 in the inner surface 34, it is deformed into a shape that bulges outward in the radial direction. Thereby, the bending auxiliary part 24 which is thinner than the normal diameter part 22 and includes the peak part 26 and the valley part 28 is formed. In this manner, the insulated coated electric wire W having the bending auxiliary portion 24 is manufactured.
なお、前記絶縁被覆２０の弾性が低くて当該絶縁被覆２０と金型内周面３２との密着が難しい場合には、両者間に例えばＯリングが挟み込まれてもよい。また、両金型３０Ａ，３０Ｂ同士の接合面のシールのためにゴムシートが両金型３０Ａ，３０Ｂの間に挟みこまれてもよい。あるいは、絶縁被覆電線素材Ｗ′が比較的短い場合には、当該電線素材Ｗ′全体を密封するような長尺の金型が使用されてもよい。この場合も、当該金型内を排気して減圧すると、絶縁被覆電線素材Ｗ′における中心導体１０での流路抵抗により絶縁被覆２０の内側圧力Ｐｉと外側圧力Ｐｏとの間にＰｏ＜Ｐｉ（＝大気圧）となる圧力差が生ずるので、前記と同様に曲げ補助部２４を形成することが可能である。
If the insulation coating 20 has low elasticity and it is difficult to make close contact between the insulation coating 20 and the inner peripheral surface 32 of the mold, for example, an O-ring may be sandwiched therebetween. Further, a rubber sheet may be sandwiched between the molds 30A and 30B for sealing the joint surface between the molds 30A and 30B. Alternatively, when the insulating coated wire material W ′ is relatively short, a long mold that seals the entire wire material W ′ may be used. Also in this case, when the inside of the mold is evacuated and depressurized, Po <Pi (between the inner pressure Pi and the outer pressure Po of the insulation coating 20 due to the flow resistance at the center conductor 10 in the insulation coating wire material W ′. == atmospheric pressure), a bending assist portion 24 can be formed in the same manner as described above.
このような真空成形の他、ブロー成形によっても前記圧力差を与えることが可能である。このブロー成形は、前記絶縁被覆２０の内側に圧力ガス（例えばエア）を押し込んで当該内側の圧力Ｐｉを昇圧することにより、Ｐｏ（＝大気圧）＜Ｐｉとなる圧力差を形成するものである。
In addition to such vacuum forming, the pressure difference can be given by blow molding. In this blow molding, a pressure gas (for example, air) is pushed into the inside of the insulating coating 20 to increase the internal pressure Pi, thereby forming a pressure difference such that Po (= atmospheric pressure) <Pi. .
以上示した製造方法によれば、絶縁被覆電線素材Ｗ′の周囲に適当な形状の内面をもつ金型を配置して当該金型内で絶縁被覆２０を加熱しながら当該絶縁被覆２０の内側と外側との間に圧力差を与えるだけで、当該絶縁被覆２０に好適な曲げ補助部２４を形成することができる。この方法では、金型内面形状と、得られる曲げ補助部２４の形状と、が対応しているので、当該金型の内面の形状の設定により、好ましい形状の曲げ補助部２４を自由に形成することが、可能である。換言すれば、要求される形状の曲げ補助部の形成は、その形状に対応した形状の金型を用いることで容易に達成することが可能である。
According to the manufacturing method described above, a mold having an inner surface of an appropriate shape is arranged around the insulating coated wire material W ′, and the inside of the insulating coating 20 is heated while heating the insulating coating 20 in the mold. The bending auxiliary part 24 suitable for the insulating coating 20 can be formed only by giving a pressure difference between the outside and the outside. In this method, the shape of the inner surface of the mold corresponds to the shape of the obtained bending auxiliary portion 24. Therefore, the bending auxiliary portion 24 having a preferable shape can be freely formed by setting the shape of the inner surface of the mold. Is possible. In other words, the formation of the required bending assisting portion can be easily achieved by using a mold having a shape corresponding to the shape.
以上のように、本発明によれば、面倒な作業及び複雑な構造を要することなく適当な部位を曲げることが可能な絶縁被覆電線及び当該絶縁被覆電線を容易に製造することが可能な方法が提供される。
As described above, according to the present invention, there is provided an insulated wire that can bend an appropriate portion without requiring a troublesome work and a complicated structure, and a method that can easily manufacture the insulated wire. Provided.
本発明が提供する絶縁被覆電線は、中心導体と、絶縁性を有する合成樹脂材料からなり、前記中心導体を被覆する絶縁被覆と、を備える。前記絶縁被覆は、その軸方向の一部の箇所に形成されて他の部分よりも曲げ剛性の低い曲げ補助部を有する。この曲げ補助部は、前記中心導体の外周面から前記絶縁被覆電線の径方向の外側に離間するように膨出する複数の山部と、この山部の外径よりも小さい外径と当該山部の内径よりも小さな内径とを有する複数の谷部とが軸方向に交互に並ぶ形状を有する。さらに、前記谷部のうちの少なくとも一部の内径は、当該谷部が前記中心導体をその径方向の外側から拘束するように当該中心導体の外周面に全周にわたり接触することを可能にする径である。
The insulation coated electric wire provided by the present invention includes a center conductor and an insulation coating made of a synthetic resin material having insulation properties and covering the center conductor. The insulating coating has a bending auxiliary portion formed at a part of the axial direction thereof and having a lower bending rigidity than the other part. The bending auxiliary portion includes a plurality of peak portions that bulge from the outer peripheral surface of the center conductor to the outside in the radial direction of the insulation-coated wire, an outer diameter smaller than the outer diameter of the peak portion, and the peak. A plurality of troughs having an inner diameter smaller than the inner diameter of the portion are alternately arranged in the axial direction. Furthermore, the inner diameter of at least a portion of the valley allows the valley to contact the outer peripheral surface of the central conductor over the entire circumference so that the valley constrains the central conductor from outside in the radial direction. Is the diameter.
前記の曲げ補助部を有する絶縁被覆電線によれば、当該曲げ補助部に含まれる複数の山部の内周面が中心導体の外周面から径方向の外側に離間しているために、当該曲げ補助部に対応する箇所での絶縁被覆電線の曲げを容易にすることができる。すなわち、この絶縁被覆電線の曲げ易さは、当該絶縁被覆電線を構成する絶縁被覆そのものに形成された曲げ補助部の形状により与えられるので、従来のように当該絶縁被覆の一部を除去する作業やその除去した部位を当該絶縁被覆電線とは別の部材であるプロテクタに装着する作業は不要である。その一方、当該曲げ補助部に含まれる複数の谷部の少なくとも一部は前記中心導体の外周面にわたり接触することが可能な内径を有していて当該接触により前記中心導体をその径方向の外側から拘束するため、前記中心導体からの前記各山部の内周面の離間にかかわらず、曲げ補助部において当該中心導体が絶縁被覆に対して相対変位するのを抑止することができる。従って、当該相対変位による不都合、例えば、当該中心導体が互いに束ねられた複数の素線からなる場合に当該素線がばらけるといった不都合、を回避することができる。
According to the insulated coated electric wire having the bending auxiliary portion, the inner peripheral surfaces of the plurality of crests included in the bending auxiliary portion are separated from the outer peripheral surface of the central conductor in the radial direction. The insulation-coated electric wire can be easily bent at a location corresponding to the auxiliary portion. That is, the ease of bending of the insulation-coated electric wire is given by the shape of the bending auxiliary portion formed on the insulation coating itself that constitutes the insulation-coated electric wire. And the operation | work which attaches the removed site | part to the protector which is a member different from the said insulation coating electric wire is unnecessary. On the other hand, at least a part of the plurality of valleys included in the bending auxiliary portion has an inner diameter that can contact the outer peripheral surface of the center conductor, and the contact causes the center conductor to be outside in the radial direction. Therefore, regardless of the separation of the inner peripheral surface of each peak from the center conductor, the center conductor can be prevented from being relatively displaced with respect to the insulation coating in the bending auxiliary portion. Accordingly, it is possible to avoid inconvenience due to the relative displacement, for example, inconvenience that the wire is scattered when the central conductor is composed of a plurality of strands bundled together.
前記曲げ補助部は、当該曲げ補助部に含まれる全ての谷部の内径が、当該谷部が前記中心導体をその径方向の外側から拘束するように当該中心導体の外周面に全周にわたり接触することを可能にする径であることが、より好ましい。これにより、当該曲げ補助部における中心導体の径方向外側からの拘束がより確実となる。
The bending auxiliary part is in contact with the outer peripheral surface of the central conductor over the entire circumference so that the inner diameter of all the valley parts included in the bending auxiliary part is constrained by the valley part from the outside in the radial direction. More preferably, the diameter is such that it is possible to do so. Thereby, the restraint from the radial direction outer side of the center conductor in the said bending auxiliary | assistant part becomes more reliable.
また本発明が提供する方法は、前記絶縁被覆電線を製造するための方法であって、中心導体と絶縁性を有する熱可塑性樹脂材料からなって前記中心導体を被覆する絶縁被覆とを有する絶縁被覆電線素材を用意する工程と、前記絶縁被覆電線素材の軸方向の少なくとも一部の箇所の周囲に当該絶縁被覆電線素材の外周面に対して径方向外側に膨出する形状の膨出部と前記絶縁被覆電線素材の絶縁被覆の外周面と接触可能な内径をもつ接触部とが軸方向に交互に並ぶ凹凸内面を有する金型を配置する工程と、当該金型内において前記絶縁被覆を構成する熱可塑性樹脂材料を加熱して軟化させるとともに当該絶縁被覆の内側の圧力が前記金型内における当該絶縁被覆の外側の圧力よりも高くなるような圧力差を与えることにより、当該絶縁被覆に、前記金型の凹凸内面に沿った形状の曲げ補助部であって、前記中心導体の外周面から前記絶縁被覆電線の径方向の外側に離間するように膨出する複数の山部と、この山部の外径よりも小さい外径と当該山部の内径よりも小さな内径とを有する複数の谷部とが軸方向に交互に並ぶ形状を有し、かつ、前記谷部のうちの少なくとも一部の谷部の内径は、当該谷部が前記中心導体をその径方向の外側から拘束するように当該中心導体の外周面に全周にわたり接触することを可能にする径である曲げ補助部を形成する工程と、を含むものである。
Further, the method provided by the present invention is a method for manufacturing the insulation-coated electric wire, the insulation coating comprising a center conductor and an insulation coating made of a thermoplastic resin material having insulation properties and covering the center conductor. A step of preparing an electric wire material, and a bulging portion having a shape bulging radially outward with respect to the outer peripheral surface of the insulating coated electric wire material around at least a portion of the insulating coated electric wire material in the axial direction; A step of disposing a mold having a concave and convex inner surface in which contact portions having an inner diameter capable of contacting with an outer peripheral surface of the insulation coating electric wire material are alternately arranged in the axial direction; and the insulation coating is configured in the mold The thermoplastic resin material is heated and softened, and a pressure difference is given to the insulating coating so that the pressure inside the insulating coating is higher than the pressure outside the insulating coating in the mold. A plurality of crests that bulge from the outer peripheral surface of the central conductor so as to be spaced apart from the outer circumference in the radial direction of the insulation-coated wire A plurality of troughs having an outer diameter smaller than the outer diameter of the part and an inner diameter smaller than the inner diameter of the peak part alternately arranged in the axial direction, and at least a part of the trough part The inner diameter of the trough portion is a diameter that enables the trough portion to contact the outer peripheral surface of the center conductor over the entire circumference so as to constrain the center conductor from the outside in the radial direction. And a step of performing.
ここで、「熱可塑性樹脂材料を加熱して軟化させる」とは、前記圧力差の付与により当該熱可塑性樹脂が膨張して前記金型の凹凸内面に沿う形状に変形可能となる程度まで軟化するように加熱することを意味し、その具体的な加熱温度は、当該熱可塑性樹脂の材質や厚みに応じて適宜設定されればよい。
Here, “heat and soften the thermoplastic resin material” means that the thermoplastic resin expands due to the application of the pressure difference and softens to the extent that it can be deformed into a shape along the concave and convex inner surface of the mold. The specific heating temperature may be appropriately set according to the material and thickness of the thermoplastic resin.
この絶縁被覆電線の製造方法によれば、絶縁被覆電線素材の周囲に金型を配置して当該金型内で絶縁被覆を加熱しながらその内外に圧力差を与えるだけで、当該絶縁被覆に好適な曲げ補助部を形成することができる。この方法では、前記金型の内面の形状とこれにより得られる曲げ補助部の形状とが対応しているので、当該金型の内面の形状の設定により、好ましい形状の曲げ補助部を自由に形成することが、可能である。
According to this method of manufacturing an insulated wire, a metal mold is disposed around the insulated wire material, and only by applying a pressure difference between the inside and outside of the die while heating the insulation coating, it is suitable for the insulation coating. A bending assisting part can be formed. In this method, since the shape of the inner surface of the mold corresponds to the shape of the bending auxiliary portion obtained thereby, the bending auxiliary portion having a preferable shape can be freely formed by setting the shape of the inner surface of the mold. It is possible to do.
前記金型内における絶縁被覆の内側の圧力と外側の圧力との間に圧力差を与えるには、当該金型内を排気して減圧してもよいし、当該絶縁被覆電線素材の少なくとも一方の端部から前記金型内で加熱している絶縁被覆の内側に空気等のガスを押し込んでもよい。前者の場合には、特別な加圧ガスを用いることなく所望の曲げ補助部を形成することができる。
In order to give a pressure difference between the pressure inside and outside the insulation coating in the mold, the inside of the mold may be evacuated and decompressed, or at least one of the insulation coated wire materials A gas such as air may be pushed into the inside of the insulating coating heated in the mold from the end. In the former case, a desired bending auxiliary portion can be formed without using a special pressurized gas.
Claims (4)
- 絶縁被覆電線であって、
中心導体と、
絶縁性を有する合成樹脂材料からなり、前記中心導体を被覆する絶縁被覆と、を備え、
前記絶縁被覆は、その軸方向の一部の箇所に形成されて他の部分よりも曲げ剛性の低い曲げ補助部を有し、この曲げ補助部は、前記中心導体の外周面から前記絶縁被覆電線の径方向の外側に離間するように膨出する複数の山部と、この山部の外径よりも小さい外径と当該山部の内径よりも小さな内径とを有する複数の谷部とが軸方向に交互に並ぶ形状を有し、かつ、前記谷部のうちの少なくとも一部の内径は、当該谷部が前記中心導体をその径方向の外側から拘束するように当該中心導体の外周面に全周にわたり接触することを可能にする径である、絶縁被覆電線。 An insulated wire,
A central conductor;
An insulating coating made of a synthetic resin material having an insulating property and covering the central conductor,
The insulation coating has a bending auxiliary portion that is formed at a part of its axial direction and has a bending rigidity lower than that of the other part. The bending auxiliary portion extends from the outer peripheral surface of the central conductor to the insulation-coated electric wire. A plurality of peak portions that bulge so as to be spaced apart outward in the radial direction, and a plurality of trough portions having an outer diameter smaller than the outer diameter of the peak portion and an inner diameter smaller than the inner diameter of the peak portion. And the inner diameter of at least a part of the troughs is formed on the outer peripheral surface of the central conductor so that the troughs restrain the central conductor from outside in the radial direction. An insulated wire that has a diameter that allows it to contact the entire circumference. - 請求項１記載の絶縁被覆電線であって、前記中心導体が互いに束ねられた複数の素線を含む、絶縁被覆電線。 The insulated wire according to claim 1, wherein the central conductor includes a plurality of strands bundled together.
- 請求項１または２記載の絶縁被覆電線であって、前記曲げ補助部は、これに含まれる全ての谷部の内径が、当該谷部が前記中心導体をその径方向の外側から拘束するように当該中心導体の外周面に全周にわたり接触することを可能にする径である、絶縁被覆電線。 3. The insulated coated electric wire according to claim 1, wherein the bending auxiliary portion has an inner diameter of all valley portions included in the bending auxiliary portion so that the valley portion constrains the central conductor from outside in the radial direction. An insulation-coated electric wire having a diameter that enables contact with the outer peripheral surface of the central conductor over the entire circumference.
- 前記絶縁被覆電線を製造するための方法であって、
中心導体と絶縁性を有する熱可塑性樹脂材料からなって前記中心導体を被覆する絶縁被覆とを有する絶縁被覆電線素材を用意する工程と、
前記絶縁被覆電線素材の軸方向の少なくとも一部の箇所の周囲に当該絶縁被覆電線素材の外周面に対して径方向外側に膨出する形状の膨出部と前記絶縁被覆電線素材の絶縁被覆の外周面と接触可能な内径をもつ接触部とが軸方向に交互に並ぶ凹凸内面を有する金型を配置する工程と、
当該金型内において前記絶縁被覆を構成する熱可塑性樹脂材料を加熱して軟化させるとともに当該絶縁被覆の内側の圧力が前記金型内における当該絶縁被覆の外側の圧力よりも高くなるような圧力差を与えることにより、当該絶縁被覆に、前記金型の凹凸内面に沿った形状の曲げ補助部であって、前記中心導体の外周面から前記絶縁被覆電線の径方向の外側に離間するように膨出する複数の山部と、この山部の外径よりも小さい外径と当該山部の内径よりも小さな内径とを有する複数の谷部とが軸方向に交互に並ぶ形状を有し、かつ、前記谷部のうちの少なくとも一部の谷部の内径は、当該谷部が前記中心導体をその径方向の外側から拘束するように当該中心導体の外周面に全周にわたり接触することを可能にする径である曲げ補助部を形成する工程と、を含む、絶縁被覆電線の製造方法。 A method for producing the insulated wire,
A step of preparing an insulating coated electric wire material having a central conductor and an insulating coating made of a thermoplastic resin material having an insulating property and covering the central conductor;
A bulging portion having a shape that bulges radially outward with respect to the outer peripheral surface of the insulation-coated wire material around at least a portion of the insulation-coated wire material in the axial direction and an insulation coating of the insulation-coated wire material. Arranging a mold having a concave and convex inner surface alternately arranged in the axial direction with contact portions having an inner diameter capable of contacting the outer peripheral surface;
Pressure difference that heats and softens the thermoplastic resin material constituting the insulating coating in the mold and the pressure inside the insulating coating is higher than the pressure outside the insulating coating in the mold By providing the insulation coating, the insulation coating is a bending auxiliary portion having a shape along the concave and convex inner surface of the mold, and is swelled away from the outer peripheral surface of the center conductor to the outside in the radial direction of the insulation coating electric wire. A plurality of protruding ridges, and a plurality of valleys having an outer diameter smaller than the outer diameter of the ridge and an inner diameter smaller than the inner diameter of the ridge, and having a shape alternately arranged in the axial direction, and The inner diameter of at least some of the troughs can contact the outer peripheral surface of the central conductor over the entire circumference so that the trough restrains the central conductor from outside in the radial direction. Forms a bending aid that is the diameter to be That comprises the steps, a method of manufacturing a sheathed wires.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-200318 | 2013-09-26 | ||
| JP2013200318A JP5954285B2 (en) | 2013-09-26 | 2013-09-26 | Insulated coated wire and method for manufacturing the same |
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| WO2015045837A1 true WO2015045837A1 (en) | 2015-04-02 |
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| PCT/JP2014/073714 WO2015045837A1 (en) | 2013-09-26 | 2014-09-08 | Insulated wire and production method therefor |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6436917U (en) * | 1987-08-31 | 1989-03-06 | ||
| JPH03127422U (en) * | 1990-04-02 | 1991-12-20 | ||
| JP2003317555A (en) * | 2002-04-26 | 2003-11-07 | Sumitomo Wiring Syst Ltd | Mold structure for molding wire harness and method for molding wire harness |
| JP2011254614A (en) * | 2010-06-02 | 2011-12-15 | Yazaki Corp | Wire harness |
-
2013
- 2013-09-26 JP JP2013200318A patent/JP5954285B2/en not_active Expired - Fee Related
-
2014
- 2014-09-08 WO PCT/JP2014/073714 patent/WO2015045837A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6436917U (en) * | 1987-08-31 | 1989-03-06 | ||
| JPH03127422U (en) * | 1990-04-02 | 1991-12-20 | ||
| JP2003317555A (en) * | 2002-04-26 | 2003-11-07 | Sumitomo Wiring Syst Ltd | Mold structure for molding wire harness and method for molding wire harness |
| JP2011254614A (en) * | 2010-06-02 | 2011-12-15 | Yazaki Corp | Wire harness |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5954285B2 (en) | 2016-07-20 |
| JP2015069718A (en) | 2015-04-13 |
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