JP2010124593A - Electric-wire protective material - Google Patents

Electric-wire protective material Download PDF

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Publication number
JP2010124593A
JP2010124593A JP2008295516A JP2008295516A JP2010124593A JP 2010124593 A JP2010124593 A JP 2010124593A JP 2008295516 A JP2008295516 A JP 2008295516A JP 2008295516 A JP2008295516 A JP 2008295516A JP 2010124593 A JP2010124593 A JP 2010124593A
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electric wire
protective material
convex portion
wire
base material
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Masayuki Doi
雅之 土井
Arisa Imatoku
亜瑠沙 今徳
Toshiji Morii
敏次 森井
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Sumitomo Wiring Systems Ltd
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Sumitomo Wiring Systems Ltd
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Priority to JP2008295516A priority Critical patent/JP2010124593A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a space-saving electric-wire protective material that attains reduction in processing labor and the number of components. <P>SOLUTION: The electric-wire protective material 10 is a protective material 10 for covering an electric wire 11 from the outside. The protective material 10 includes a sheet-like base material 13, having an adhesive layer 12 on its one face, and the other face of the base material 13 has a plurality of protrusions 14, respectively having a cavity 16 in its inside and protrudingly formed apart at intervals. The protective material 10 is bonded and fixed to the electric wire 11 via the adhesive layer 12, and is space-saving. Since the electric wire 11 can be protected from collisions, or the like, of the electric wire 11 with the peripheral members by merely bonding and fixing the protective material 10 to the electric wire 11, thereby reducing processing labor and the number of components. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、電線の保護材に関する。   The present invention relates to a protective material for electric wires.

自動車などに配策される電線の周辺には種々な部材が配置されており、これらの周辺部材と電線とが接触したり衝突することがあるため、周辺部材との接触・衝突などから電線を保護する必要がある。
また、上記周辺部材のなかには金属板から部材の展開形状を持つ原板を曲げ加工することによって作製されるものがある。このような原板は金属板を打ちぬいたり、切削工具を用いて切断するなどの方法により得られるが、切削工具により原板を切断加工する際に切削断面が切断方向に金属の延性により引き伸ばされて延出し、比較的広い面積に小さいバリが形成されたり、打ち抜いた際に細長く突出した形状のバリが形成されることがある。これらのバリと電線とが接触したり、衝突したりすると、電線が磨耗したり破損するおそれがある。
そこで、従来から、電線の周辺に配される部材や当該部材に形成されるバリとの接触・衝突などから電線を保護するために、電線には外装保護材としてコルゲートチューブが取り付けられている。このようなコルゲートチューブとしては、例えば特許文献1に記載のものなどが知られている。
特開2000−353432公報
Various members are arranged around the electric wires routed to automobiles, etc., and these peripheral members may come into contact with or collide with the electric wires. It needs to be protected.
Some of the peripheral members are manufactured by bending an original plate having a developed shape of a member from a metal plate. Such an original plate can be obtained by punching a metal plate or cutting it with a cutting tool, but when cutting the original plate with a cutting tool, the cutting cross section is stretched by the ductility of the metal in the cutting direction. In some cases, a small burr is formed in a relatively wide area, or a burr having a shape that is elongated when punched is formed. When these burrs and the electric wire come into contact with each other or collide, the electric wire may be worn or damaged.
Therefore, conventionally, a corrugated tube is attached to the electric wire as an exterior protective material in order to protect the electric wire from contact or collision with a member disposed around the electric wire or a burr formed on the member. As such a corrugated tube, for example, the one described in Patent Document 1 is known.
JP 2000-353432 A

一般的なコルゲートチューブには、軸方向にスリットが形成されており、当該スリットを開くことにより、その内部に電線が収容される。そして、コルゲートチューブ内に収容される電線は、収容の作業性を高めるとともに、コルゲートチューブの内壁との摩擦から電線を保護するために、テープ類が巻きつけられる。さらに、電線を収容したコルゲートチューブには、屈曲などによりスリットが開くのを防止するために、上からテープなどを巻きつける等の加工が施される。   A general corrugated tube is formed with a slit in the axial direction, and an electric wire is accommodated therein by opening the slit. And the electric wire accommodated in a corrugated tube is wound around tapes in order to protect the electric wire from friction with the inner wall of a corrugated tube while improving workability | operativity of accommodation. Further, the corrugated tube containing the electric wire is subjected to processing such as winding a tape from above in order to prevent the slit from being opened due to bending or the like.

従って、コルゲートチューブを備える電線を作製するには、電線にテープ類を巻きつける作業と、電線をコルゲートチューブに収納する作業と、コルゲートチューブの口開きを防止するテープを巻く作業とが必要であり、加工の手間がかかる上に、部品点数が多いのでコスト高であった。   Therefore, to produce an electric wire having a corrugated tube, it is necessary to wrap the tape around the electric wire, store the electric wire in the corrugated tube, and wrap the tape to prevent the corrugated tube from opening. In addition, it takes a lot of work, and the number of parts is large, so the cost is high.

また、コルゲートチューブを備える電線においては、電線のはみ出し防止の観点から、コルゲートチューブにおける電線の収容率が制限されている。すなわち、コルゲートチューブを備える電線においては、電線とコルゲートチューブとの間に空間が存在するため、前記電線の収容率の制限が電線の省スペース化の障害となっていた。   Moreover, in the electric wire provided with a corrugated tube, the accommodation rate of the electric wire in a corrugated tube is restrict | limited from a viewpoint of the protrusion of an electric wire. That is, in an electric wire provided with a corrugated tube, since there is a space between the electric wire and the corrugated tube, the limitation on the accommodation rate of the electric wire has been an obstacle to space saving of the electric wire.

本発明は上記のような事情に基づいて完成されたものであって、加工の手間および部品点数を減らすことができ、省スペースである電線の保護材を提供することを目的とする。   The present invention has been completed based on the above circumstances, and an object of the present invention is to provide an electric wire protective material that can reduce processing effort and the number of parts and save space.

上記課題を解決するものとして、本発明は、電線を外側から被覆する保護材であって、一方の面に粘着層を有するシート状の基材を備え、前記基材の他方の面には、内部が空洞となっている複数の凸部が、間隔をあけて突出形成されていることを特徴とする。   In order to solve the above problems, the present invention is a protective material for covering an electric wire from the outside, and includes a sheet-like base material having an adhesive layer on one surface, and on the other surface of the base material, A plurality of convex portions that are hollow inside are formed to protrude at intervals.

本発明の電線の保護材(「本発明の保護材」ともいう)は、粘着層を介して、電線に接着・固定されるから、電線と保護材との間に隙間ができないため、省スペース化が可能である。   The wire protective material of the present invention (also referred to as “protective material of the present invention”) is bonded and fixed to the electric wire via an adhesive layer, so there is no gap between the electric wire and the protective material, thus saving space. Is possible.

また、本発明の保護材において、基材の他方の面(粘着層を有する面とは反対側の面)には、内部が空洞になっている複数の凸部が間隔をあけて突出形成されているので、本発明の保護材を備える電線とその周辺に配される周辺部材とが接触あるいは衝突すると、凸部の周辺部材との接触面が空洞内に撓んで逃げる。つまり本発明において、凸部は、電線と周辺部材との接触・衝突などによって電線が受ける衝撃などを緩衝する機能を有する。
そして、本発明の保護材において、当該凸部では、凸部の高さの分だけ保護材の厚みが大きくなっており、凸部と凸部との間には凸部の高さに相当する深さの谷が形成されている。従って、周辺部材と本発明の保護材を備える電線との接触などにより、周辺部材に形成されているバリが凸部に接触したり刺さったりしても、凸部では厚みが大きくなっているので、バリが電線に到達しない。一方、凸部と凸部との間にバリが入ったとしても、凸部と凸部との間には凸部の高さに相当する深さの谷が形成されているから、谷底部分(基材の表面)にはバリが到達し難い。その結果、本発明の保護材で電線を被覆すれば、電線を周辺部材との摩擦などから保護することができる。
そして、本発明によれば、本発明の保護材のみを電線に接着・固定するだけで、電線を周辺部材などとの摩擦から保護することができるから、加工の手間および部品点数を減らすことができる。
In the protective material of the present invention, the other surface of the substrate (the surface opposite to the surface having the adhesive layer) is formed with a plurality of convex portions that are hollow inside and projecting at intervals. Therefore, when the electric wire provided with the protective material of the present invention and a peripheral member arranged in the vicinity thereof contact or collide, the contact surface with the peripheral member of the convex portion is bent into the cavity and escapes. That is, in the present invention, the convex portion has a function of buffering an impact received by the electric wire due to contact / collision between the electric wire and the peripheral member.
In the protective material of the present invention, the thickness of the protective material is increased by the height of the convex portion in the convex portion, which corresponds to the height of the convex portion between the convex portions. A valley of depth is formed. Therefore, even if the burr formed on the peripheral member contacts or sticks to the convex part due to contact between the peripheral member and the electric wire provided with the protective material of the present invention, the convex part has a large thickness. , Burr does not reach the wire. On the other hand, even if burrs are formed between the convex portions, a valley having a depth corresponding to the height of the convex portions is formed between the convex portions and the convex portions. It is difficult for burrs to reach the surface of the substrate. As a result, when the electric wire is covered with the protective material of the present invention, the electric wire can be protected from friction with peripheral members.
And according to the present invention, it is possible to protect the electric wire from friction with peripheral members, etc., simply by adhering / fixing only the protective material of the present invention to the electric wire, thereby reducing the labor and the number of parts. it can.

本発明は以下の構成であってもよい。
前記基材の凸部が形成された面からの前記凸部の突出高さが1.0mm以上2.0mm以下の構成であってもよい。
基材の凸部が形成された面からの凸部の突出高さを高くしすぎると、保護材の最大厚みが大きくなりすぎるため、保護材で被覆した電線を収容するためのスペースが大きくなる。一方、凸部の突出高さを低くしすぎると、周辺部材に形成されたバリが電線に到達しやすくなるため、周辺部材との摩擦から電線を保護する機能の低下が懸念される。
そこで、上記構成のように凸部の突出高さを設定すれば、一般的なコルゲートチューブの厚みと同じ位となるので、上記構成によれば、省スペースでありながらも、コルゲートチューブと同等以上の電線保護効果が得られる。
The present invention may have the following configuration.
The protrusion height of the protrusion from the surface on which the protrusion of the substrate is formed may be 1.0 mm or more and 2.0 mm or less.
If the protruding height of the convex portion from the surface on which the convex portion of the base material is formed is too high, the maximum thickness of the protective material becomes too large, and the space for accommodating the electric wire covered with the protective material becomes large. . On the other hand, if the protrusion height of the convex portion is too low, the burr formed on the peripheral member easily reaches the electric wire, and there is a concern that the function of protecting the electric wire from friction with the peripheral member may be deteriorated.
Therefore, if the protrusion height of the convex portion is set as in the above configuration, the thickness is the same as the thickness of a general corrugated tube. Therefore, according to the above configuration, it is equivalent to or more than the corrugated tube while saving space. The electric wire protection effect can be obtained.

前記基材には、切断線が形成されている構成であってもよい。
この構成によれば、保護材全体の厚みが大きい場合であっても、手で容易に切断することができる。
The base material may have a configuration in which a cutting line is formed.
According to this structure, even if the thickness of the whole protective material is large, it can be easily cut by hand.

前記凸部の、前記基材の厚み方向に対して垂直な方向の断面の形状は略長方形をなし、前記断面の長手方向が前記電線の長さ方向と平行となるように配される構成であってもよい。   In the configuration, the shape of the cross section of the convex portion in the direction perpendicular to the thickness direction of the base material is substantially rectangular, and the longitudinal direction of the cross section is parallel to the length direction of the electric wire. There may be.

本発明の保護材を電線に巻きつける方法としては、基材の厚み方向に対して垂直な断面(以下、単に「凸部の断面」ともいう)の短辺方向が電線の長さ方向に平行になるように配し、凸部の断面の長手方向が電線の周方向と平行になるように配して巻きつける方法(方法1)も考えられる。
しかしながら、電線の周方向は弧状をなして曲がっているので、凸部の断面の長手方向を電線の長さ方向と平行に配し、凸部の断面の短辺方向を電線の周方向と平行に配して、電線に巻きつけたほうが、方法1で巻きつけるよりも保護材を電線の周方向に沿わせ易く、保護材を電線に巻きつけた後に、電線に曲げ力がかかっても外れ難い。
すなわち、上記構成によれば、電線に巻きつける作業を円滑に行うことができるとともに、電線に巻きつけ固定した後に電線が屈曲したりしても、保護材が電線から外れ難い。
As a method of winding the protective material of the present invention around an electric wire, the short side direction of the cross section perpendicular to the thickness direction of the base material (hereinafter, also simply referred to as “cross section of the convex portion”) is parallel to the length direction of the electric wire. (Method 1) is also conceivable in which the longitudinal direction of the cross section of the convex portion is arranged so as to be parallel to the circumferential direction of the electric wire.
However, since the circumferential direction of the electric wire is bent in an arc shape, the longitudinal direction of the cross section of the convex portion is arranged in parallel to the length direction of the electric wire, and the short side direction of the cross section of the convex portion is parallel to the circumferential direction of the electric wire. It is easier to keep the protective material along the circumferential direction of the wire than when it is wound in Method 1, and it will come off even if bending force is applied to the wire after the protective material is wrapped around the wire. hard.
That is, according to the said structure, while the work wound around an electric wire can be performed smoothly, even if an electric wire bends after winding and fixing to an electric wire, a protective material does not come off easily from an electric wire.

前記基材の前記凸部の形成されていない部分の厚みが0.1mm以上0.5mm以下の構成であってもよい。
この構成によれば、切断線が形成されていなくても、あるいは切断線が形成されていないところでも、手で容易に切断することができる。
The thickness of the part where the convex part of the substrate is not formed may be 0.1 mm or more and 0.5 mm or less.
According to this configuration, it is possible to easily cut by hand even when no cutting line is formed or where no cutting line is formed.

本発明によれば、加工の手間および部品点数を減らし、省スペースである電線の保護材を提供することができる。   ADVANTAGE OF THE INVENTION According to this invention, the effort of a process and the number of parts can be reduced, and the protective material of the electric wire which is space saving can be provided.

<実施形態1>
本発明の実施形態1を図1ないし図4によって説明する。
本実施形態の電線の保護材10(以下、単に「保護材10」ともいう)は、図1および図4に示すように、芯線11Aを絶縁被覆11Bで被覆してなる電線11を、外側から被覆して保護するものである。
<Embodiment 1>
A first embodiment of the present invention will be described with reference to FIGS.
As shown in FIGS. 1 and 4, the wire protective material 10 of the present embodiment (hereinafter, also simply referred to as “protective material 10”) has an electric wire 11 formed by coating a core wire 11 </ b> A with an insulating coating 11 </ b> B from the outside. It is covered and protected.

本実施形態の保護材10は、略長方形のシート状をなしており、その長辺の長さは電線11の長さに対応し、短辺の長さは電線11の外周の長さに対応するように設定されている。そして、本実施形態の保護材10は、長辺方向(長手方向)を電線11の長さ方向に対して平行に配し、短辺方向を電線11の外周に沿わせて、電線11に一巻きすることにより接着・固定されている(図4を参照)。   The protective material 10 of the present embodiment has a substantially rectangular sheet shape, the length of the long side corresponds to the length of the electric wire 11, and the length of the short side corresponds to the length of the outer periphery of the electric wire 11. It is set to be. And the protective material 10 of this embodiment distribute | arranges a long side direction (longitudinal direction) in parallel with respect to the length direction of the electric wire 11, and makes a short side direction along the outer periphery of the electric wire 11, and is the same to the electric wire 11. It is bonded and fixed by winding (see FIG. 4).

本実施形態の保護材10は、図1および図2に示すように、基材13の一方の面(図2における下側の面)の前面に形成された粘着層12を介して電線11に接着される。基材13の粘着層12が形成された面とは反対側の面(他方の面)には、複数の凸部14が突出形成されている(詳細は後述する)。   As shown in FIGS. 1 and 2, the protective material 10 of the present embodiment is applied to the electric wire 11 via an adhesive layer 12 formed on the front surface of one surface of the base material 13 (the lower surface in FIG. 2). Glued. A plurality of convex portions 14 are formed to protrude on the surface (the other surface) opposite to the surface on which the adhesive layer 12 of the substrate 13 is formed (details will be described later).

本実施形態の保護材10を構成する基材13としては、ポリプロピレン、ポリエチレンなどのオレフィン系樹脂、オレフィン系熱可塑性エラストマー(TPO)、および合成ゴムなどの柔軟性に優れたものを用いることができる。これらのうち、安価であるという観点からポリプロピレンが好ましく、柔軟性に優れているという点でTPOが好ましい。   As the base material 13 constituting the protective material 10 of the present embodiment, a material having excellent flexibility such as an olefin resin such as polypropylene or polyethylene, an olefin thermoplastic elastomer (TPO), or a synthetic rubber can be used. . Of these, polypropylene is preferable from the viewpoint of being inexpensive, and TPO is preferable from the viewpoint of excellent flexibility.

本実施形態において、粘着層12は、例えば、ゴム系粘着剤、ポリウレタン系粘着剤、アクリル系粘着剤、シリコーン系粘着剤、ポリエーテル系粘着剤などの公知の粘着剤を含む粘着シートを、基材13の一方の面に貼り付ける方法などにより形成することができる。   In this embodiment, the pressure-sensitive adhesive layer 12 is based on a pressure-sensitive adhesive sheet containing a known pressure-sensitive adhesive such as a rubber-based pressure-sensitive adhesive, a polyurethane-based pressure-sensitive adhesive, an acrylic pressure-sensitive adhesive, a silicone-based pressure-sensitive adhesive, or a polyether-based pressure-sensitive adhesive. It can be formed by a method of attaching to one surface of the material 13.

さて、本実施形態において、基材13の粘着層12が形成された面とは反対側の面(図2における上側面)には、内部が空洞16となっている複数の凸部14が間隔をあけて形成されており、隣り合う凸部14と凸部14との間は谷が形成されておりその最も低いところが谷底面13Aとなっている。   Now, in the present embodiment, a plurality of convex portions 14 whose insides are cavities 16 are spaced on the surface (upper surface in FIG. 2) opposite to the surface on which the adhesive layer 12 of the base material 13 is formed. A valley is formed between the adjacent projections 14 and the adjacent projections 14, and the lowest portion is a valley bottom surface 13 </ b> A.

凸部14は、図3に示すように、側面視台形状をなし、基材13の厚み方向に対して垂直な方向の断面(以下、単に「凸部14の断面」ともいう)の形状が略長方形をなしている。凸部14は、図4に示すように、凸部14の断面の長辺14A方向(長手方向)が電線11の長さ方向と平行となるように配されている。
本実施形態において、当該凸部14の断面のうち、最も面積が大きい断面(最も基材表面に近い部分の断面)の長辺14Aの長さは約10mm〜20mmで、短辺14Bの長さは約5mm〜10mmとされる。
As shown in FIG. 3, the convex portion 14 has a trapezoidal shape when viewed from the side, and has a cross-section in a direction perpendicular to the thickness direction of the base material 13 (hereinafter, also simply referred to as “cross section of the convex portion 14”). It is almost rectangular. As shown in FIG. 4, the convex portion 14 is arranged such that the direction of the long side 14 </ b> A (longitudinal direction) of the cross section of the convex portion 14 is parallel to the length direction of the electric wire 11.
In this embodiment, the length of the long side 14A of the cross section having the largest area (the cross section of the portion closest to the substrate surface) among the cross sections of the convex portion 14 is about 10 mm to 20 mm, and the length of the short side 14B. Is about 5 mm to 10 mm.

そして、本実施形態において、凸部14の、基材13の凸部14が形成された面からの突出高さ(図2におけるX)は1.0mm以上2.0mm以下、隣り合う凸部14の間隔は約2mm〜5mmに設定されている。ここで、凸部14の突出高さとは、凸部14の下端14Aから凸部14の上端14Bまでの高さをいう。   And in this embodiment, the protrusion height (X in FIG. 2) from the surface in which the convex part 14 of the base material 13 of the convex part 14 was formed is 1.0 mm or more and 2.0 mm or less, and adjacent convex part 14 Is set to about 2 mm to 5 mm. Here, the protruding height of the convex portion 14 refers to the height from the lower end 14 </ b> A of the convex portion 14 to the upper end 14 </ b> B of the convex portion 14.

本実施形態の保護材10の基材13には、図3に示すように、凸部14の断面の短辺14B方向に対して平行に、ミシン目17(切断線)が形成されている。詳しくは、ミシン目17は、隣り合う凸部14と凸部14との間に、一列ごとに形成されている。これにより保護材10はミシン目17に沿って手で容易に切断できるようになっている。   As shown in FIG. 3, perforations 17 (cut lines) are formed on the base material 13 of the protective material 10 of the present embodiment in parallel to the direction of the short side 14 </ b> B of the cross section of the convex portion 14. Specifically, the perforations 17 are formed for each row between the adjacent convex portions 14. As a result, the protective material 10 can be easily cut by hand along the perforations 17.

なお、本実施形態においては、基材13の凸部14が形成されていない部分の厚み(図2におけるY)が0.1mm以上0.5mm以下に設定されており、ミシン目17のない部分でも手で容易に切断できるようになっている。なお、基材13の凸部14が形成されていない部分の厚みYとは、凸部と凸部との間に形成された谷の谷底面13Aから粘着層12のうち電線に接着される面12Aまでの厚みのことをいう。   In the present embodiment, the thickness (Y in FIG. 2) of the portion of the base material 13 where the convex portion 14 is not formed is set to 0.1 mm or more and 0.5 mm or less, and there is no perforation 17. But it can be easily cut by hand. In addition, the thickness Y of the part in which the convex part 14 of the base material 13 is not formed is the surface bonded to the electric wire in the adhesive layer 12 from the valley bottom surface 13A formed between the convex part and the convex part. Thickness up to 12A.

本実施形態の保護材10は、例えば、以下の方法により製造することができる。
まず、基材13の材料であるポリプロピレンフィルムなどを真空成形することにより、凸部14を形成する。
The protective material 10 of this embodiment can be manufactured by the following method, for example.
First, the convex part 14 is formed by vacuum-molding the polypropylene film etc. which are the materials of the base material 13. FIG.

次に、凸部14が形成された基材13の凸部14が形成されていないほうの面に、粘着層12を有する粘着シートを重ねて、空洞16に粘着剤が入らないように貼り合わせてシート状とする。当該シート状としたものの所定位置にミシン目17を形成し、所定寸法(電線11の長さに対応する長辺寸法を有し、電線11の周の長さに対応した短辺寸法を有する長方形状)にカットすることにより、本実施形態の保護材10が得られる。
なお、本実施形態では、保護材10を所定寸法にカットする際に、基材13の厚み方向に対して垂直な方向の断面(凸部14の断面)の長辺14Aが保護材10の長辺方向に平行となるようにカットする。
Next, the adhesive sheet having the adhesive layer 12 is stacked on the surface of the base material 13 on which the convex portion 14 is formed, on which the convex portion 14 is not formed, and is bonded so that the adhesive does not enter the cavity 16. To form a sheet. A perforation 17 is formed at a predetermined position of the sheet shape, and a predetermined dimension (a long side corresponding to the length of the electric wire 11 and a short side corresponding to the circumference of the electric wire 11) The protective material 10 of this embodiment is obtained.
In the present embodiment, when the protective material 10 is cut to a predetermined dimension, the long side 14A of the cross section (the cross section of the convex portion 14) in the direction perpendicular to the thickness direction of the base material 13 is the length of the protective material 10. Cut to be parallel to the side direction.

上記のようにして得られた保護材11を、凸部14の断面の長辺14Aが電線11の長さ方向に平行になるように配し、凸部14の断面の短辺14Bが電線11の周方向と平行になるように配して、粘着層12を電線11のほうに向けて電線に巻きつけ固定すると、電線11が本実施形態の保護材11で被覆される。   The protective material 11 obtained as described above is arranged so that the long side 14A of the cross section of the convex portion 14 is parallel to the length direction of the electric wire 11, and the short side 14B of the cross section of the convex portion 14 is the electric wire 11. When the adhesive layer 12 is wound around and fixed to the electric wire 11 so as to be parallel to the circumferential direction, the electric wire 11 is covered with the protective material 11 of the present embodiment.

次に、本実施形態の作用および効果を説明する。
本実施形態の保護材10の基材13の粘着層12を有する面とは反対側の面には、内部が空洞16になっている複数の凸14部が間隔をあけて突出形成されているので、本実施形態の保護材10で被覆された電線10と周辺部材(図示せず)とが接触すると凸部14の周辺部材との接触面が空洞16内に撓んで逃げる。つまり本実施形態の保護材10において、凸部14は周辺部材と電線11との接触・衝突などによって電線が受ける衝撃などを緩衝する機能を有する。
そして、本実施形態の保護材10の凸部14においては、凸部14の高さの分だけ保護材10の厚みが大きくなっており、凸部14と凸部14との間には凸部14の高さに相当する深さの谷が形成されている。従って、周辺部材と本実施形態の保護材10を備える電線11との接触などにより周辺部材に形成されているバリが凸部14に接触したり刺さったりしても、凸部14では保護材10の厚みが大きくなっているので、電線11に到達しない。一方、凸部14と凸部14との間にバリが入ったとしても、凸部14と凸部14との間には凸部14の高さに相当する深さの谷が形成されているから、谷底面13Aにはバリが到達し難い。その結果、本実施形態の保護材10を電線11に被覆すれば、電線11を周辺部材との摩擦などから保護することができるので、本実施形態の保護材10をコルゲートチューブに代わる保護材として用いることができる。
そして、本実施形態によれば、当該保護材10のみを電線11に接着・固定するだけで、電線11を周辺部材などとの摩擦から保護することができるから、加工の手間および部品点数を減らすことができる。
Next, the operation and effect of this embodiment will be described.
In the surface of the protective material 10 according to the present embodiment, the surface of the base material 13 opposite to the surface having the adhesive layer 12 is formed with a plurality of protrusions 14 that are hollow 16 protruding inside at intervals. Therefore, when the electric wire 10 covered with the protective material 10 of this embodiment and a peripheral member (not shown) come into contact, the contact surface of the convex portion 14 with the peripheral member is bent into the cavity 16 and escapes. That is, in the protective material 10 of the present embodiment, the convex portion 14 has a function of buffering an impact received by the electric wire due to contact / collision between the peripheral member and the electric wire 11.
And in the convex part 14 of the protective material 10 of this embodiment, the thickness of the protective material 10 is large by the height of the convex part 14, and there is a convex part between the convex part 14 and the convex part 14. A valley having a depth corresponding to a height of 14 is formed. Therefore, even if the burr formed on the peripheral member contacts or sticks to the convex portion 14 due to contact between the peripheral member and the electric wire 11 including the protective material 10 of the present embodiment, the protective material 10 Since the thickness of is increased, the electric wire 11 is not reached. On the other hand, even if a burr is formed between the convex portion 14 and the convex portion 14, a valley having a depth corresponding to the height of the convex portion 14 is formed between the convex portion 14 and the convex portion 14. Therefore, it is difficult for burrs to reach the valley bottom surface 13A. As a result, by covering the electric wire 11 with the protective material 10 of the present embodiment, the electric wire 11 can be protected from friction with peripheral members and the like, so that the protective material 10 of the present embodiment is used as a protective material in place of the corrugated tube. Can be used.
And according to this embodiment, since the electric wire 11 can be protected from friction with a peripheral member etc. only by adhere | attaching and fixing only the said protective material 10 to the electric wire 11, the effort of a process and the number of parts are reduced. be able to.

また、本実施形態によれば、保護材10が粘着層12を介して電線11に固定されるので、電線11と保護材10との間に隙間ができないため、省スペース化が可能である。   Moreover, according to this embodiment, since the protective material 10 is fixed to the electric wire 11 through the adhesive layer 12, a space cannot be formed between the electric wire 11 and the protective material 10, and space saving is possible.

また、本実施形態によれば、基材13に、ミシン目17が形成されているから、ミシン目17に沿って手で容易に切断することができる。さらに、本実施形態によれば、基材13の凸部14が形成されていない部分の厚みYが0.1mm以上0.5mm以下となるように設定しているから、保護材10を、ミシン目17のないところでも、手で容易に切断することができる。   Moreover, according to this embodiment, since the perforation 17 is formed in the base material 13, it can be easily cut | disconnected by the hand along the perforation 17. FIG. Furthermore, according to this embodiment, since the thickness Y of the portion of the base material 13 where the convex portion 14 is not formed is set to be 0.1 mm or more and 0.5 mm or less, the protective material 10 is attached to the sewing machine. Even where there is no eye 17, it can be easily cut by hand.

上述したように、基材13の凸部14が形成された面からの凸部14の突出高さXを高くするに従い、保護材10で被覆した電線11を収容するためのスペースが大きくなる。一方、凸部14の突出高さXを低くしすぎると、周辺部材に形成されたバリが電線11に到達しやすくなるため、周辺部材との摩擦から電線11を保護する機能の低下が懸念される。   As described above, as the protrusion height X of the convex portion 14 from the surface on which the convex portion 14 of the substrate 13 is formed is increased, the space for accommodating the electric wire 11 covered with the protective material 10 becomes larger. On the other hand, if the protrusion height X of the convex portion 14 is too low, the burr formed on the peripheral member can easily reach the electric wire 11, and there is a concern that the function of protecting the electric wire 11 from friction with the peripheral member may be deteriorated. The

これらの点を考慮して、本実施形態では、基材13の凸部14が形成された面からの凸部14の突出高さXを1.0mm以上2.0mm以下に設定して、一般的なコルゲートチューブの厚みと同じ位にしている。その結果、本実施形態によれば、省スペースでありながらも、コルゲートチューブと同等以上の電線保護効果が得られる。   In consideration of these points, in this embodiment, the protrusion height X of the protrusion 14 from the surface on which the protrusion 14 of the base material 13 is formed is set to 1.0 mm or more and 2.0 mm or less. It is about the same thickness as a typical corrugated tube. As a result, according to the present embodiment, a wire protection effect equivalent to or higher than that of the corrugated tube can be obtained while saving space.

さらに、本実施形態によれば、保護材10は、凸部14の断面の長辺14Aを電線11の長さ方向に平行になるように配し、凸部14の断面の短辺14Bを電線11の周方向と平行になるように配して電線11に巻きつけられている。
上述したように、電線11の周方向は弧状をなして曲がっているので、凸部14の断面の短辺14Bを電線11の長さ方向に平行になるように配し、凸部14の断面の長辺14Aを電線11の周方向と平行になるように配して巻きつける方法よりも本実施形態の方法で、電線に巻きつけたほうが、保護材10を電線11の周方向に沿わせ易く、保護材10を電線11に巻きつけた後に、電線11に曲げ力がかかっても外れ難い。
その結果、本実施形態によれば、電線11に巻きつける作業を円滑に行うことができるとともに、電線11に巻きつけ固定した後に電線11が屈曲したりしても、保護材10が電線11から外れ難い。
Furthermore, according to the present embodiment, the protective material 10 is arranged so that the long side 14A of the cross section of the convex portion 14 is parallel to the length direction of the electric wire 11, and the short side 14B of the cross section of the convex portion 14 is arranged as the electric wire. 11 is wound around the electric wire 11 so as to be parallel to the circumferential direction.
As described above, since the circumferential direction of the electric wire 11 is curved in an arc shape, the short side 14B of the cross section of the convex portion 14 is arranged so as to be parallel to the length direction of the electric wire 11, and the cross section of the convex portion 14 is provided. When the wire is wound around the wire by the method of the present embodiment rather than the method of arranging and winding the long side 14A of the wire so as to be parallel to the circumferential direction of the wire 11, the protective material 10 is aligned along the circumferential direction of the wire 11. Even after the protective material 10 is wound around the electric wire 11, it is hard to come off even if a bending force is applied to the electric wire 11.
As a result, according to the present embodiment, the work of winding around the electric wire 11 can be performed smoothly, and the protective material 10 is removed from the electric wire 11 even if the electric wire 11 is bent after being wound around and fixed to the electric wire 11. Hard to come off.

加えて、本実施形態によれば、保護材10の長辺の長さは電線11の長さに対応し、短辺の長さは電線11の外周の長さに対応するように設定されているから、電線11に一巻きすることにより接着・固定することができ、加工作業が容易である。   In addition, according to the present embodiment, the length of the long side of the protective material 10 corresponds to the length of the electric wire 11, and the length of the short side corresponds to the length of the outer periphery of the electric wire 11. Therefore, it can be bonded and fixed by winding it around the electric wire 11, and the processing work is easy.

<実施形態2>
次に、本発明の実施形態2を図5によって説明する。上記実施形態1と同様の構成については同一の符号を付して、重複する説明は省略する。
本実施形態の保護材10は、実施形態1よりも細幅のテープ状に形成されているという点、およびミシン目17が形成されていないという点で実施形態1とは相違する。
<Embodiment 2>
Next, Embodiment 2 of the present invention will be described with reference to FIG. The same components as those in the first embodiment are denoted by the same reference numerals, and redundant description is omitted.
The protective material 10 of the present embodiment is different from that of the first embodiment in that it is formed in a tape shape that is narrower than that of the first embodiment and that the perforation 17 is not formed.

本実施形態の保護材10は、図5に示すように、粘着層12を電線11側に配し、電線11の絶縁被覆11Bが外側に露出しないように、電線11の長さ方向に対して斜めに巻きつけることにより、接着・固定される。   As shown in FIG. 5, the protective material 10 according to the present embodiment has an adhesive layer 12 disposed on the electric wire 11 side, and the insulating coating 11 </ b> B of the electric wire 11 is not exposed to the outside. It is bonded and fixed by winding it at an angle.

本実施形態においても、実施形態1と同様に、保護材10が粘着層12を介して電線11に固定されるから、省スペース化が可能である。また、本実施形態においても、緩衝機能を有する凸部14が形成された保護材10を電線11に接着するように巻くだけでよいから、加工の手間および部品点数を減らすことができる。   Also in this embodiment, since the protective material 10 is fixed to the electric wire 11 via the adhesive layer 12 as in the first embodiment, space saving is possible. Also in this embodiment, it is only necessary to wind the protective material 10 on which the convex portion 14 having a buffer function is formed so as to adhere to the electric wire 11, so that it is possible to reduce the labor and the number of parts.

また、本実施形態の保護材10の凸部14も実施形態1の保護材10と同様の突出高さXを有するから、省スペースでありながらも、一般的なコルゲートチューブと同等以上の電線保護効果が得られる。   Moreover, since the convex part 14 of the protective material 10 of this embodiment also has the protrusion height X similar to the protective material 10 of Embodiment 1, although it is space-saving, electric wire protection equivalent to or more than a general corrugated tube An effect is obtained.

<他の実施形態>
本発明は上記記述及び図面によって説明した実施形態に限定されるものではなく、例えば次のような実施形態も本発明の技術的範囲に含まれる。
(1)上記実施形態においては、凸部の、基材の凸部が形成された面からの突出高さは1.0mm以上2.0mm以下、隣り合う凸部の間隔は約2mm〜5mmのものを示したが、凸部の基材面からの突出高さが1.0mm未満あるいは2.0mmよりも大きくてもよく、隣り合う凸部の間隔は5mmを超えるものであってもよい。
<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) In the said embodiment, the protrusion height of the convex part from the surface in which the convex part of the base material was formed is 1.0 mm or more and 2.0 mm or less, and the space | interval of adjacent convex parts is about 2 mm-5 mm. Although the thing was shown, the protrusion height from the base-material surface of a convex part may be less than 1.0 mm or larger than 2.0 mm, and the space | interval of adjacent convex parts may exceed 5 mm.

(2)上記実施形態においては、凸部は、側面視台形状で、基材の厚み方向に垂直な方向の断面が長方形状をなすものを示したが、側面視台形状で、基材の厚み方向に垂直な方向の断面が正方形のものや、側面視半円状で、基材の厚み方向に垂直な方向の断面が円形のものなどであってもよい。   (2) In the above embodiment, the convex portion has a trapezoidal shape in a side view, and the cross section in a direction perpendicular to the thickness direction of the base material has a rectangular shape. The cross section in the direction perpendicular to the thickness direction may be a square cross section, the side view may be semicircular, and the cross section in the direction perpendicular to the thickness direction of the substrate may be a circular cross section.

(3)上記実施形態においては、凸部の基材の厚み方向に垂直な方向の断面の長手方向が、電線の長手方向と平行になるように配されているものを示したが、基材の厚み方向に垂直な方向の断面の短辺方向が電線の長手方向と平行になるように配したものであってもよい。   (3) In the above-described embodiment, the one in which the longitudinal direction of the cross section in the direction perpendicular to the thickness direction of the base material of the convex portion is arranged so as to be parallel to the longitudinal direction of the electric wire is shown. It may be arranged so that the short side direction of the cross section in the direction perpendicular to the thickness direction is parallel to the longitudinal direction of the electric wire.

(4)上記実施形態1では、保護材にミシン目を形成するとともに、基材の厚みを0.1mm以上0.5mm以下とすることにより容易に手切り可能としたが、ミシン目を形成せずに基材の厚みを0.1mm以上0.5mm以下としてもよいし、基材の厚みを0.5mmよりも大きくして保護材にミシン目を形成してもよい。また、基材や粘着層の材料を調整するなど、保護材自体の破断強度を調整することにより手切り可能としてもよい。   (4) In Embodiment 1 described above, the perforation is formed in the protective material, and the thickness of the base material can be easily cut by 0.1 mm to 0.5 mm, but the perforation is formed. Instead, the thickness of the substrate may be 0.1 mm or more and 0.5 mm or less, or the thickness of the substrate may be larger than 0.5 mm to form a perforation in the protective material. Further, it may be possible to cut by hand by adjusting the breaking strength of the protective material itself, such as adjusting the material of the base material or the adhesive layer.

(5)上記実施形態1では、ミシン目を、基材の厚み方向に垂直な凸部の断面の短辺方向に対して平行に形成したものを示したが、このミシン目に加えて、あるいは、このミシン目に代えて、基材の厚み方向に垂直な凸部の断面の長辺方向に対して平行なミシン目を形成したものであってもよい。   (5) In the first embodiment, the perforation is formed in parallel to the short side direction of the cross section of the projection perpendicular to the thickness direction of the base material. Instead of this perforation, a perforation that is parallel to the long side direction of the cross section of the projection perpendicular to the thickness direction of the substrate may be formed.

(6)上記実施形態では1本の電線を被覆した電線の保護材を示したが2本以上の電線を1つにまとめて被覆するものであってもよい。   (6) In the above-described embodiment, the wire protective material covering one electric wire is shown, but two or more electric wires may be collectively covered.

(7)上記実施形態では、剥離シートを備えない粘着シートを貼り付けて作製した保護材を示したが、剥離シートを一方の面に備える粘着シートを貼り付けて作製した保護材であってもよい。   (7) In the said embodiment, although the protective material produced by affixing the adhesive sheet which is not equipped with a peeling sheet was shown, even if it is a protective material produced by affixing the adhesive sheet which provides a peeling sheet on one side, Good.

実施形態1の電線の保護材で被覆した電線の断面図Sectional drawing of the electric wire coat | covered with the protective material of the electric wire of Embodiment 1 電線の保護材の断面図Cross section of wire protective material 電線の保護材の一部を凸部側から見た斜視図であって、凸部の断面形状を示す図It is the perspective view which looked at a part of protection material of an electric wire from the convex part side, and is a figure showing the section shape of a convex part 電線の保護材で被覆した電線の斜視図Perspective view of electric wire covered with electric wire protective material 実施形態2の電線の保護材で被覆した電線の斜視図The perspective view of the electric wire coat | covered with the protective material of the electric wire of Embodiment 2

符号の説明Explanation of symbols

10…電線の保護材
11…電線
12…粘着層
13…基材
14…凸部
16…空洞
DESCRIPTION OF SYMBOLS 10 ... Electric wire protective material 11 ... Electric wire 12 ... Adhesive layer 13 ... Base material 14 ... Convex part 16 ... Cavity

Claims (5)

電線を外側から被覆する保護材であって、
一方の面に粘着層を有するシート状の基材を備え、
前記基材の他方の面には、内部が空洞となっている複数の凸部が、間隔をあけて突出形成されていることを特徴とする電線の保護材。
A protective material for covering the electric wire from the outside,
Provided with a sheet-like substrate having an adhesive layer on one side,
On the other surface of the base material, a plurality of convex portions having a hollow inside are formed to protrude at intervals.
前記基材の凸部が形成された面からの前記凸部の突出高さが1.0mm以上2.0mm以下であることを特徴とする請求項1に記載の電線の保護材。 2. The wire protective material according to claim 1, wherein a protruding height of the convex portion from a surface on which the convex portion of the base material is formed is 1.0 mm or more and 2.0 mm or less. 前記基材には、切断線が形成されていることを特徴とする請求項1または請求項2に記載の電線の保護材。 The wire protective material according to claim 1, wherein a cutting line is formed on the base material. 前記凸部の、前記基材の厚み方向に対して垂直な方向の断面の形状は略長方形をなし、前記断面の長手方向が前記電線の長さ方向と平行となるように配されることを特徴とする請求項1ないし請求項3のいずれか一項に記載の電線の保護材。 The shape of the cross section of the convex portion in the direction perpendicular to the thickness direction of the base material is substantially rectangular, and the longitudinal direction of the cross section is arranged to be parallel to the length direction of the electric wire. The protective material for an electric wire according to any one of claims 1 to 3, wherein the protective material is an electric wire. 前記基材の前記凸部の形成されていない部分の厚みが0.1mm以上0.5mm以下であることを特徴とする請求項1ないし請求項4のいずれか一項に記載の電線の保護材。 The thickness of the part in which the said convex part of the said base material is not formed is 0.1 mm or more and 0.5 mm or less, The protective material of the electric wire as described in any one of Claim 1 thru | or 4 characterized by the above-mentioned. .
JP2008295516A 2008-11-19 2008-11-19 Electric-wire protective material Abandoned JP2010124593A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102664372A (en) * 2012-04-26 2012-09-12 天津长城精益汽车零部件有限公司 Wire harness protection device
JP2013201797A (en) * 2012-03-23 2013-10-03 Yazaki Corp Sheath material for electric wire
JP2018510310A (en) * 2015-03-20 2018-04-12 シュレンマー ゲーエムベーハー Corrugated plastic tube for wrapping electrical wires

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6362686U (en) * 1986-10-15 1988-04-25
JPH0548521U (en) * 1991-11-26 1993-06-25 矢崎総業株式会社 Corrugated tube
JP2008120415A (en) * 2006-11-10 2008-05-29 Auto Network Gijutsu Kenkyusho:Kk Tape material for wire harness bundling

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6362686U (en) * 1986-10-15 1988-04-25
JPH0548521U (en) * 1991-11-26 1993-06-25 矢崎総業株式会社 Corrugated tube
JP2008120415A (en) * 2006-11-10 2008-05-29 Auto Network Gijutsu Kenkyusho:Kk Tape material for wire harness bundling

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013201797A (en) * 2012-03-23 2013-10-03 Yazaki Corp Sheath material for electric wire
CN102664372A (en) * 2012-04-26 2012-09-12 天津长城精益汽车零部件有限公司 Wire harness protection device
JP2018510310A (en) * 2015-03-20 2018-04-12 シュレンマー ゲーエムベーハー Corrugated plastic tube for wrapping electrical wires

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