JP2001296227A - Method and device for abrasion testing for covered electric wire - Google Patents
Method and device for abrasion testing for covered electric wireInfo
- Publication number
- JP2001296227A JP2001296227A JP2000110665A JP2000110665A JP2001296227A JP 2001296227 A JP2001296227 A JP 2001296227A JP 2000110665 A JP2000110665 A JP 2000110665A JP 2000110665 A JP2000110665 A JP 2000110665A JP 2001296227 A JP2001296227 A JP 2001296227A
- Authority
- JP
- Japan
- Prior art keywords
- electric wire
- covered electric
- wire
- abrasion
- testing
- 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.)
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、自動車用電線の
耐摩耗性を評価する際に、自動車搭載時の環境を限りな
く再現する被覆電線の摩耗試験方法及び摩耗試験装置に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for testing abrasion of an insulated wire, which reproduces the environment in which the wire is mounted on a vehicle as much as possible when evaluating the abrasion resistance of the wire for a vehicle.
【０００２】[0002]
【従来の技術】電線被覆の摩耗試験は、ＩＳＯ−６７２
２やＪＡＳＯ−Ｄ６１８、又はＪＩＳＣ−３４０６に規
定されているブレード往復法とテープ摩耗試験法があ
る。2. Description of the Related Art An abrasion test of an electric wire coating is performed according to ISO-672.
2 and JASO-D618 or JISC-3406, there are a blade reciprocating method and a tape abrasion test method.
【０００３】これらの摩耗試験方法では、被覆電線に金
属製のブレードやテープ状の研磨紙（サンドペーパー）
を一定荷重で押し当てて、内部の導体が露出した時のブ
レードの往復回数、サンドペーパーの長さを測定する方
法である。In these abrasion test methods, a metal blade or a tape-like abrasive paper (sandpaper) is applied to a covered electric wire.
Is pressed with a constant load to measure the number of reciprocations of the blade and the length of sandpaper when the internal conductor is exposed.
【０００４】ここで、測定結果について規格での取り決
めはなく、往復回数やサンドペーパーの長さは電線を使
用する当事者間で決められる。[0004] Here, there is no standard in the measurement results, and the number of reciprocations and the length of the sandpaper are determined by the parties using the electric wire.
【０００５】[0005]
【発明が解決しようとする課題】従来の摩耗試験方法で
は、上述の通り、金属製のブレードやサンドペーパーを
用いて試験していたが、自動車に搭載された被覆電線
は、実際には金属ブレードやサンドペーパーと接触する
箇所は皆無である。In the conventional abrasion test method, as described above, the test was performed using a metal blade or sandpaper. However, the coated electric wire mounted on an automobile is actually a metal braid. There is no place that contacts with sandpaper.
【０００６】一般的に、電線被覆材などの高分子材料
は、温度や接触圧力、摩擦係数、摩擦速度、相手材の種
類等によって摩耗性が変化する。故に、従来の摩耗試験
方法での測定結果は、自動車搭載時の摩耗を再現してい
るものではない。In general, the abrasion of a polymer material such as an electric wire coating material changes depending on the temperature, contact pressure, friction coefficient, friction speed, type of a mating material, and the like. Therefore, the measurement results obtained by the conventional wear test method do not reproduce the wear when mounted on an automobile.
【０００７】例えば、実際の自動車においては、電線束
の保護を目的として、電線束の周囲を、ポリプロピレン
（ＰＰ）製のコルゲートチューブ（平滑管の外面から、
環状または螺旋状等に溝を付けたもの）や、ＰＶＣ製チ
ューブ、あるいはクランプで覆うことが行われている。
この場合、被覆電線は、自動車を構成する部品（ボディ
やエンジン、シートなどあらゆる部品）と直接接触する
ことはなく、ましてや金属製のブレード状のものやサン
ドペーパー状の相手と接触することは皆無である。[0007] For example, in an actual automobile, for the purpose of protecting the electric wire bundle, a corrugated tube made of polypropylene (PP) is placed around the electric wire bundle from the outer surface of the smooth tube.
Annular or spiral grooves), a PVC tube, or a clamp.
In this case, the insulated wire does not come into direct contact with the components that make up the vehicle (all parts such as the body, engine, and seat), and even less with metal braid or sandpaper. It is.
【０００８】そこで、この発明の課題は、自動車搭載時
の環境を限りなく再現して摩耗試験を行うことの可能な
被覆電線の摩耗試験方法及び摩耗試験装置を提供するこ
とにある。SUMMARY OF THE INVENTION It is an object of the present invention to provide a method and an apparatus for testing the abrasion of a covered electric wire capable of performing an abrasion test by reproducing an environment when mounted on an automobile as much as possible.
【０００９】[0009]
【課題を解決するための手段】上記課題を解決すべく、
請求項１に記載の発明は、所定の遊挿体内に収められて
使用される被覆電線の表面の摩耗を試験する被覆電線の
摩耗試験方法であって、前記被覆電線を、支持天井から
垂下された前記遊挿体に接触するように遊挿する工程
と、前記被覆電線の両端を、前記被覆電線の線軸を前記
遊挿体の線軸に略揃えるようにして所定の支持架台に固
定する工程と、揺動機構を駆動させて、前記被覆電線を
前記遊挿体内で前記線軸方向に揺動する工程とを備える
ものである。Means for Solving the Problems In order to solve the above problems,
The invention according to claim 1 is a method for testing the abrasion of a surface of a covered electric wire used by being housed in a predetermined play insertion body, wherein the covered electric wire is suspended from a supporting ceiling. And the step of fixing both ends of the covered electric wire to a predetermined support base so that the line axis of the covered electric wire is substantially aligned with the line axis of the loose inserted object. Driving the swinging mechanism to swing the covered electric wire in the play insertion body in the line axis direction.
【００１０】請求項２に記載の発明は、前記遊挿体はコ
ルゲートチューブである。[0010] In the invention according to a second aspect, the loose insert is a corrugated tube.
【００１１】請求項３に記載の発明は、前記遊挿体は樹
脂チューブである。According to a third aspect of the present invention, the loose insert is a resin tube.
【００１２】請求項４に記載の発明は、前記遊挿体は環
状のクランプである。[0012] In the invention described in claim 4, the loose insert is an annular clamp.
【００１３】請求項５に記載の発明は、摩耗試験装置で
あって、支持天井から前記遊挿体を垂下する遊挿体支持
部と、前記遊挿体内に遊挿された前記被覆電線の両端
を、前記被覆電線の線軸を前記遊挿体の線軸に略揃える
ようにして支持する支持架台と、前記支持架台を前記線
軸方向に揺動する揺動機構とを備えるものである。According to a fifth aspect of the present invention, there is provided an abrasion test apparatus, comprising: a play insertion member supporting portion which hangs the play insert from a support ceiling; and both ends of the covered electric wire loosely inserted into the play insertion member. And a supporting mechanism for supporting the coated electric wire such that the line axis of the covered electric wire is substantially aligned with the line axis of the play insertion body, and a rocking mechanism for rocking the supporting frame in the line axis direction.
【００１４】[0014]
【発明の実施の形態】｛第１の実施の形態｝図１はこの
発明の第１の実施の形態に係る被覆電線の摩耗試験方法
を示す図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First Embodiment FIG. 1 is a diagram showing a method for testing the wear of a covered electric wire according to a first embodiment of the present invention.
【００１５】この被覆電線の摩耗試験方法は、二輪や四
輪自動車等においてコルゲートチューブ（遊挿体）３内
に収められて使用される被覆電線（ワイヤーハーネス）
４の摩耗を試験するものであって、図１に示した摩耗試
験装置を使用して行う。The method for testing the abrasion of a covered electric wire is a covered electric wire (wire harness) used in a two-wheeled or four-wheeled automobile in a corrugated tube (free insert) 3.
The test for abrasion of No. 4 is performed by using the abrasion test apparatus shown in FIG.
【００１６】摩耗試験装置は、支持天井１から金属ワイ
ヤー等の垂下紐２により単一のコルゲートチューブ３を
垂下する遊挿体支持部２ａと、このコルゲートチューブ
３内に遊挿された被覆電線４の両端を、その被覆電線４
の線軸とコルゲートチューブ３の線軸とを互いに略揃え
るようにして支持する支持架台５と、この支持架台５を
線軸方向Ｐ，Ｑに揺動する揺動機構６とを備える。The abrasion test apparatus includes a loosely inserted body supporting portion 2a which hangs a single corrugated tube 3 from a supporting ceiling 1 with a hanging string 2 such as a metal wire, and a covered electric wire 4 which is loosely inserted into the corrugated tube 3. The both ends of the wire 4
And a supporting mechanism 5 that supports the linear axis of the corrugated tube 3 and the linear axis of the corrugated tube 3 so as to be substantially aligned with each other, and a swing mechanism 6 that swings the supporting platform 5 in the linear axis directions P and Q.
【００１７】コルゲートチューブ３は、平滑管の外面に
ついて環状または螺旋状等に溝を付けたものであり、二
輪や四輪自動車等において実際に使用されるものと同等
のものが使用される。尚、コルゲートチューブ３を垂下
する垂下紐２は、コルゲートチューブ３の両端付近をそ
れぞれＶ字形に支持することで、コルゲートチューブ３
が被覆電線４の長手方向である上記線軸方向Ｐ，Ｑにの
み揺らぐようになっている。The corrugated tube 3 is formed by forming a groove in the outer surface of a smooth tube in an annular or spiral shape, and is equivalent to that actually used in a two-wheeled or four-wheeled vehicle. The hanging cord 2 hanging down the corrugated tube 3 supports the vicinity of both ends of the corrugated tube 3 in a V-shape, respectively.
Fluctuates only in the line axis directions P and Q, which are the longitudinal directions of the insulated wire 4.
【００１８】支持架台５は、コルゲートチューブ３より
長く形成されて水平に配置される板状の基台７と、この
基台７の長手方向の両端部に上方に向けて突設されて被
覆電線４の端部を支持する電線固定具８とを備える。
尚、電線固定具８に被覆電線４を固定する方法として
は、接着材で止着してもよいし、あるいは被覆電線４を
電線固定具８の上端部に巻き付けて結びつけても良い。
尚、支持架台５は、図示しない載置台等により、矢示方
向（線軸方向）Ｐ，Ｑにおける直線運動のみが可能に案
内される。The support base 5 is formed to be longer than the corrugated tube 3 and is disposed horizontally. A plate-like base 7 is provided on both ends of the base 7 in the longitudinal direction. And an electric wire fixing device 8 for supporting the end of the electric wire 4.
In addition, as a method of fixing the covered electric wire 4 to the electric wire fixing device 8, the covered electric wire 4 may be fixed with an adhesive, or the covered electric wire 4 may be wound around the upper end portion of the electric wire fixing device 8 and bound.
The support base 5 is guided by a mounting table or the like (not shown) so that only linear movement in the directions P and Q indicated by arrows (linear axis directions) is possible.
【００１９】揺動機構６は、例えば図１のように、円板
状のクランク６ａが中心軸６ｂを中心として回転運動し
たときに、クランク６ａの円周部６ｃに回動可能に連結
されたアーム６ｄが追従して動作することで、このアー
ム６ｄと支持架台５とが連結された連結節６ｅを矢示方
向Ｐ，Ｑに直線運動（往復運動）させるようになってい
る。The swing mechanism 6 is rotatably connected to a circumferential portion 6c of the crank 6a when the disk-shaped crank 6a rotates around a central shaft 6b as shown in FIG. 1, for example. When the arm 6d follows and operates, the connecting node 6e connecting the arm 6d and the support base 5 linearly moves (reciprocates) in the arrow directions P and Q.
【００２０】上記構成の被覆電線の摩耗試験方法の動作
を説明する。まず、摩耗試験環境として、室温を自動車
等に実際に使用される温度域になるよう調整し、また、
エンジンルームを再現したい場合には、砂や水などを吹
き付けれておく。これらは、被覆電線４が実際に取り付
けられる環境に応じて調整して摩耗性を任意に測定すれ
ば良い。The operation of the method for testing abrasion of a coated electric wire having the above-described configuration will be described. First, as a wear test environment, adjust the room temperature to the temperature range that is actually used for automobiles, etc.
If you want to recreate the engine room, spray sand or water. These may be adjusted according to the environment in which the insulated wire 4 is actually attached, and the wear property may be arbitrarily measured.
【００２１】また、試験の際の被覆電線４の本数や、コ
ルゲートチューブ３の内径などは、実車搭載時と同等の
条件に設定する。被覆電線４の張力は、実写搭載時の環
境を再現できる方が良い。The number of covered electric wires 4 and the inner diameter of the corrugated tube 3 at the time of the test are set to the same conditions as when mounted on an actual vehicle. It is preferable that the tension of the insulated wire 4 be able to reproduce the environment at the time of actual shooting.
【００２２】そして、被覆電線４を、支持天井１から金
属ワイヤー等の垂下紐２により垂下されたコルゲートチ
ューブ３に接触するように遊挿し、被覆電線４の両端を
支持架台５の固定具８に固定する。Then, the covered electric wire 4 is loosely inserted from the support ceiling 1 so as to come into contact with the corrugated tube 3 hung by the hanging cord 2 such as a metal wire, and both ends of the covered electric wire 4 are fixed to the fixtures 8 of the support base 5. Fix it.
【００２３】かかる状態で、揺動機構６を駆動させ、被
覆電線４を線軸方向Ｐ，Ｑに揺動する。揺動機構６の振
動周波数は、実車での振動周波数に近いほど良く、例え
ば、５０Ｈｚ以下で、望ましくは、５〜３０Ｈｚの範囲
内で任意に設定すれば良い。In this state, the swinging mechanism 6 is driven to swing the insulated wire 4 in the axial directions P and Q. The vibration frequency of the rocking mechanism 6 is preferably as close as possible to the vibration frequency of the actual vehicle, and may be arbitrarily set, for example, at 50 Hz or less, preferably within the range of 5 to 30 Hz.
【００２４】このとき、被覆電線４の表面がコルゲート
チューブ３に摺接しながら線軸方向Ｐ，Ｑに揺動される
ので、従来の摩耗試験方法では再現できないコルゲート
チューブ３と被覆電線４の干渉パターンを再現できる。At this time, the surface of the insulated wire 4 is swung in the linear axis directions P and Q while sliding on the corrugated tube 3, so that the interference pattern between the corrugated tube 3 and the insulated wire 4 which cannot be reproduced by the conventional wear test method. Can be reproduced.
【００２５】かかる動作を所定の時間継続した後、被覆
電線４の摩耗量を、重量や寸法、表面粗さ計等で測定す
ればよい。After the above operation is continued for a predetermined time, the amount of wear of the insulated wire 4 may be measured with a weight, a dimension, a surface roughness meter or the like.
【００２６】＜実施例１＞外径２．２ｍｍ、長さ１００
ｍｍのＰＶＣ製の１本の被覆電線４を支持架台５の固定
具８に取付け、長さ６０ｍｍ、内径７ｍｍのコルゲート
チューブ３で被覆電線４を包むように取り付けた。<Example 1> Outer diameter 2.2 mm, length 100
1 mm of the insulated wire 4 made of PVC was attached to the fixture 8 of the support base 5 and attached so as to cover the insulated wire 4 with a corrugated tube 3 having a length of 60 mm and an inner diameter of 7 mm.
【００２７】室温状態で、支持架台５を揺動機構６に載
せ、周波数１０Ｈｚ、振幅（ストローク）１０ｍｍで揺
動させた。At room temperature, the support base 5 was placed on the swing mechanism 6 and was swung at a frequency of 10 Hz and an amplitude (stroke) of 10 mm.
【００２８】５００時間振動させたところ、被覆電線４
の中心部、即ち端部から約５０ｍｍの位置において摩耗
量が大きく、外径２．２ｍｍの被覆が、最大で０．０５
ｍｍ程度摩耗していた。従来の被覆電線４表面に見られ
た押出時の凹凸もなくなっており、押し潰されたよう
に、平滑な表面になっていた。After vibrating for 500 hours, the coated electric wire 4
At the center, that is, at a position about 50 mm from the end, the coating having an outer diameter of 2.2 mm has a maximum of 0.05 mm.
mm. The surface of the conventional insulated wire 4 had no irregularities during extrusion as seen on the surface thereof, and had a smooth surface as if crushed.
【００２９】＜実施例２＞外径２．２ｍｍ、長さ１００
ｍｍのＰＶＣ製の１本の被覆電線４を支持架台５の固定
具８に取り付け、長さ６０ｍｍ、内径７ｍｍのコルゲー
トチューブ３で被覆電線４を包むように取り付けた。<Example 2> Outer diameter 2.2 mm, length 100
1 mm of the insulated wire 4 made of PVC was attached to the fixture 8 of the support base 5 and attached so as to cover the insulated wire 4 with a corrugated tube 3 having a length of 60 mm and an inner diameter of 7 mm.
【００３０】支持架台５を揺動機構６に載せ、周波数１
０Ｈｚ、振幅１０ｍｍで室温で振動させる。エンジンル
ームを再現するために、アクリル板などで砂が飛散しな
いように囲い、このアクリル板で囲まれた空間内に中に
ＪＩＳで規定されている砂を１００ｇほど振りかけた。The support base 5 is placed on the swing mechanism 6 and the frequency 1
Vibration at room temperature with 0 Hz and amplitude 10 mm. In order to reproduce the engine room, the sand was enclosed by an acrylic plate or the like so as not to be scattered, and about 100 g of sand specified by JIS was sprinkled into the space surrounded by the acrylic plate.
【００３１】５００時間振動させたところ、被覆電線４
の中心、即ち、端部から約５０ｍｍの位置において摩耗
量が大きく、外径２．２ｍｍの被覆が最大で０．０８ｍ
ｍ程度摩耗していた。被覆電線４の表面には砂が付着し
て自動車搭載時に近い状態で試験することができた。After vibrating for 500 hours, the coated electric wire 4
At the center, that is, about 50 mm from the end, the amount of wear is large, and a coating having an outer diameter of 2.2 mm is 0.08 m at the maximum.
m. Sand adhered to the surface of the insulated wire 4 and the test could be performed in a state close to when mounted on an automobile.
【００３２】以上のように、従来の試験法で再現できな
かった自動車搭載時に近似した環境下での摩耗試験を行
うことができた。As described above, a wear test could be performed in an environment similar to that when mounted on a vehicle, which could not be reproduced by the conventional test method.
【００３３】｛第２の実施の形態｝ ＜構成＞図２はこの発明の第２の実施の形態に係る被覆
電線４の摩耗試験方法を示す図である。なお、図２では
第１の実施の形態と同様の機能を有する要素については
同一符号を付している。Second Embodiment <Construction> FIG. 2 is a view showing a method for testing the abrasion of a covered electric wire 4 according to a second embodiment of the present invention. In FIG. 2, elements having the same functions as in the first embodiment are denoted by the same reference numerals.
【００３４】図２の如く、この実施の形態の被覆電線４
の摩耗試験方法は、ＰＶＣ製チューブ（遊挿体：樹脂チ
ューブ）１１に収められた被覆電線４の摩耗試験につい
てのものであり、ＰＶＣ製チューブ１１の内壁と被覆電
線４が擦れた時の摩耗性を測定する。本来、ＰＶＣ製チ
ューブ１１の目的は被覆電線４を保護することだが、物
体が接触する箇所では多かれ少なかれ必ず摩耗は起こる
ので、ＰＶＣ製チューブ１１との接触といえども摩耗性
を評価することは必要である。As shown in FIG. 2, the coated electric wire 4 of this embodiment
Is a wear test of the covered electric wire 4 housed in the PVC tube (free insert: resin tube) 11, and the wear when the inner wall of the PVC tube 11 rubs against the covered electric wire 4 is described. Measure gender. Originally, the purpose of the PVC tube 11 is to protect the insulated wire 4, but more or less abrasion always occurs at the place where an object comes into contact. Therefore, it is necessary to evaluate the abrasion even with the contact with the PVC tube 11. It is.
【００３５】具体的に、この摩耗試験方法は、第１の実
施の形態のコルゲートチューブ３に代えて、自動車等に
実際に使用されるものと同等の単一のＰＶＣ製チューブ
１１を使用したものである。この場合、ＰＶＣ製チュー
ブ１１がその線軸を上記線軸方向Ｐ，Ｑに揃えるように
して遊挿体支持体２ａに垂下される点は、上記第１の実
施の形態と同様である。その他の構成及び摩耗試験方法
は第１の実施の形態と同等である。More specifically, this wear test method uses a single PVC tube 11 equivalent to that actually used in an automobile or the like, instead of the corrugated tube 3 of the first embodiment. It is. In this case, the point that the PVC tube 11 hangs down on the loose body support 2a so that its linear axis is aligned with the linear axis directions P and Q is the same as in the first embodiment. Other configurations and wear test methods are the same as those of the first embodiment.
【００３６】＜実施例１＞外径２．２ｍｍ、長さ１００
ｍｍのＰＶＣ製の１本の被覆電線４を支持架台５の固定
具８に取付け、長さ６０ｍｍ、内径７ｍｍのＰＶＣ製チ
ューブ１１で被覆電線４を包むように取り付けた。<Example 1> Outer diameter 2.2 mm, length 100
1 mm of the insulated wire 4 made of PVC was attached to the fixture 8 of the support base 5 and attached so as to wrap the insulated wire 4 with a PVC tube 11 having a length of 60 mm and an inner diameter of 7 mm.
【００３７】室温状態で、支持架台５を揺動機構６に載
せ、周波数１０Ｈｚ、振幅（ストローク）１０ｍｍで揺
動させた。At room temperature, the support base 5 was placed on the swing mechanism 6 and was swung at a frequency of 10 Hz and an amplitude (stroke) of 10 mm.
【００３８】５００時間振動させたところ、被覆電線４
の中心部、即ち端部から約５０ｍｍの位置において摩耗
量が大きく、外径２．２ｍｍの被覆が、最大で０．０２
ｍｍ程度摩耗していた。従来の被覆電線４表面に見られ
た押出時の凹凸もなくなっており、押し潰されたよう
に、平滑な表面になっていた。After vibrating for 500 hours, the coated electric wire 4
At the center, that is, at a position about 50 mm from the end, the coating having an outer diameter of 2.2 mm has a maximum wear of 0.02 mm.
mm. The surface of the conventional insulated wire 4 had no irregularities during extrusion as seen on the surface thereof, and had a smooth surface as if crushed.
【００３９】＜実施例２＞外径２．２ｍｍ、長さ１００
ｍｍのＰＶＣ製の１本の被覆電線４を支持架台５の固定
具８に取り付け、長さ６０ｍｍ、内径７ｍｍのＰＶＣ製
チューブ１１で被覆電線４を包むように取り付けた。<Example 2> Outer diameter 2.2 mm, length 100
1 mm of the insulated wire 4 made of PVC was attached to the fixture 8 of the support gantry 5 and attached so as to wrap the insulated wire 4 with a PVC tube 11 having a length of 60 mm and an inner diameter of 7 mm.
【００４０】支持架台５を揺動機構６に載せ、周波数１
０Ｈｚ、振幅１０ｍｍで室温で振動させる。エンジンル
ームを再現するために、アクリル板などで砂が飛散しな
いように囲い、このアクリル板で囲まれた空間内に中に
ＪＩＳで規定されている砂を１００ｇほど振りかけた。The support base 5 is placed on the swing mechanism 6 and the frequency 1
Vibration at room temperature with 0 Hz and amplitude 10 mm. In order to reproduce the engine room, the sand was enclosed by an acrylic plate or the like so as not to be scattered, and about 100 g of sand specified by JIS was sprinkled into the space surrounded by the acrylic plate.
【００４１】５００時間振動させたところ、被覆電線４
の中心、即ち、端部から約５０ｍｍの位置において摩耗
量が大きく、外径２．２ｍｍの被覆が最大で０．０４ｍ
ｍ程度摩耗していた。被覆電線４の表面には砂が付着し
て自動車搭載時に近い状態で試験することができた。After vibrating for 500 hours, the coated electric wire 4
At the center, that is, at a position about 50 mm from the end, the amount of wear is large, and a coating having an outer diameter of 2.2 mm has a maximum of 0.04 m.
m. Sand adhered to the surface of the insulated wire 4 and the test could be performed in a state close to when mounted on an automobile.
【００４２】以上のように、従来の試験法で再現できな
かった自動車搭載時に近似した環境かでの摩耗試験を行
うことができた。As described above, a wear test could be performed in an environment similar to that when mounted on an automobile, which could not be reproduced by the conventional test method.
【００４３】｛第３の実施の形態｝ ＜構成＞図３はこの発明の第３の実施の形態に係る被覆
電線４の摩耗試験方法を示す図である。なお、図３では
第１の実施の形態及び第２の実施の形態と同様の機能を
有する要素については同一符号を付している。Third Embodiment <Structure> FIG. 3 is a view showing a method of testing a coated wire 4 for abrasion according to a third embodiment of the present invention. In FIG. 3, the same reference numerals are given to elements having the same functions as those in the first embodiment and the second embodiment.
【００４４】この実施の形態の被覆電線４の摩耗試験方
法は、図３に示すように、環状のクランプ（遊挿体）１
２と被覆電線４が擦れた時の被覆電線４の摩耗性を測定
するものである。本来、クランプ１２は被覆電線４を固
定することが目的だが、物体が接触する箇所では多かれ
少なかれ必ず摩耗は起こるので、クランプ１２との接触
といえども摩耗性を評価することは必要である。As shown in FIG. 3, the method for testing the abrasion of the insulated wire 4 according to this embodiment is as follows.
2 is to measure the abrasion of the covered electric wire 4 when the covered electric wire 4 rubs. Originally, the purpose of the clamp 12 is to fix the insulated wire 4. However, since the wear always occurs more or less at the place where the object comes into contact, it is necessary to evaluate the abrasion even with the contact with the clamp 12.
【００４５】具体的に、この摩耗試験方法は、第１の実
施の形態のコルゲートチューブ３や第２の実施の形態の
ＰＶＣ製チューブ１１に代えて、自動車等に実際に使用
されるものと同等の２個のクランプ１２を使用したもの
である。この場合、各クランプ１２は、それらの中心点
を結ぶ線が上記線軸方向Ｐ，Ｑに略揃うようにして、遊
挿体支持体２ａの垂下紐２にそれぞれ垂下支持される。
その他の構成及び摩耗試験方法は第１の実施の形態と同
等である。Specifically, this wear test method is the same as that actually used for automobiles or the like, instead of the corrugated tube 3 of the first embodiment or the PVC tube 11 of the second embodiment. Are used. In this case, the clamps 12 are respectively supported by the hanging cords 2 of the loose body support 2a such that the lines connecting the center points thereof are substantially aligned with the line axis directions P and Q.
Other configurations and wear test methods are the same as those of the first embodiment.
【００４６】＜実施例１＞外径２．２ｍｍ、長さ１００
ｍｍのＰＶＣ製の１本の被覆電線４を支持架台５の固定
具８に取付け、長さ６ｍｍ、内径７ｍｍの２個のクラン
プ１２で被覆電線４を包むように取り付けた。<Example 1> Outer diameter 2.2 mm, length 100
One insulated wire 4 made of PVC having a length of 5 mm was attached to the fixture 8 of the support base 5 and attached so as to wrap the insulated wire 4 with two clamps 12 having a length of 6 mm and an inner diameter of 7 mm.
【００４７】室温状態で、支持架台５を揺動機構６に載
せ、周波数１０Ｈｚ、振幅（ストローク）１０ｍｍで揺
動させた。At room temperature, the support base 5 was placed on the rocking mechanism 6 and rocked at a frequency of 10 Hz and an amplitude (stroke) of 10 mm.
【００４８】５００時間振動させたところ、被覆電線４
がクランプ１２に接触する位置において、外径２．２ｍ
ｍの被覆が、最大で０．０４ｍｍ程度摩耗していた。従
来の被覆電線４表面に見られた押出時の凹凸もなくなっ
ており、押し潰されたように、平滑な表面になってい
た。After vibrating for 500 hours, the coated electric wire 4
At a position where it contacts the clamp 12, the outer diameter is 2.2m.
m was worn by a maximum of about 0.04 mm. The surface of the conventional insulated wire 4 had no irregularities during extrusion as seen on the surface thereof, and had a smooth surface as if crushed.
【００４９】＜実施例２＞外径２．２ｍｍ、長さ１００
ｍｍのＰＶＣ製の１本の被覆電線４を支持架台５の固定
具８に取り付け、長さ６ｍｍ、内径７ｍｍの２個のクラ
ンプ１２で被覆電線４を包むように取り付けた。<Example 2> Outer diameter 2.2 mm, length 100
1 mm of the insulated wire 4 made of PVC was attached to the fixture 8 of the support base 5 and attached so as to wrap the insulated wire 4 with two clamps 12 having a length of 6 mm and an inner diameter of 7 mm.
【００５０】支持架台５を揺動機構６に載せ、周波数１
０Ｈｚ、振幅１０ｍｍで室温で振動させる。エンジンル
ームを再現するために、アクリル板などで砂が飛散しな
いように囲い、このアクリル板で囲まれた空間内に中に
ＪＩＳで規定されている砂を１００ｇほど振りかけた。The support base 5 is placed on the swing mechanism 6 and the frequency 1
Vibration at room temperature with 0 Hz and amplitude 10 mm. In order to reproduce the engine room, the sand was enclosed by an acrylic plate or the like so as not to be scattered, and about 100 g of sand specified by JIS was sprinkled into the space surrounded by the acrylic plate.
【００５１】５００時間振動させたところ、被覆電線４
がクランプ１２に接触する位置において、外径２．２ｍ
ｍの被覆が最大で０．０７ｍｍ程度摩耗していた。被覆
電線４の表面には砂が付着して自動車搭載時に近い状態
で試験することができた。After vibrating for 500 hours, the coated electric wire 4
At a position where it contacts the clamp 12, the outer diameter is 2.2m.
m was worn by a maximum of about 0.07 mm. Sand adhered to the surface of the insulated wire 4 and the test could be performed in a state close to when mounted on an automobile.
【００５２】以上のように、従来の試験法で再現できな
かった自動車搭載時に近似した環境かでの摩耗試験を行
うことができた。As described above, a wear test could be performed in an environment similar to that when mounted on an automobile, which could not be reproduced by the conventional test method.
【００５３】[0053]
【発明の効果】請求項１に記載の発明によれば、被覆電
線を、支持天井から垂下された遊挿体（例えば請求項２
のようなコルゲートチューブ、請求項３のような樹脂チ
ューブ又は請求項４のようなクランプ）に接触するよう
に遊挿し、被覆電線の両端を所定の支持架台に固定し、
揺動機構を駆動させて、被覆電線を遊挿体内で線軸方向
Ｐ，Ｑに揺動するようにしているので、金属ブレードや
研磨紙で摩耗試験を行っていた従来に比べて、実際の使
用時の条件を再現でき、有益な摩耗試験を行うことがで
きる。According to the first aspect of the present invention, the covered electric wire is inserted into the loosely inserted body suspended from the supporting ceiling (for example, the second aspect of the present invention).
(3) a corrugated tube, a resin tube as described in claim 3 or a clamp as in claim 4) so as to come into contact therewith, and fix both ends of the covered electric wire to a predetermined support base;
The swing mechanism is driven to swing the insulated wire in the axial direction P and Q in the play insertion body. Time conditions can be reproduced and valuable wear tests can be performed.
【００５４】請求項５に記載の発明によれば、請求項１
乃至請求項４の摩耗試験を有効に実行することができ
る。According to the fifth aspect of the present invention, the first aspect is provided.
In addition, the wear test according to claim 4 can be effectively executed.
【図１】この発明の第１の実施の形態に係る被覆電線の
摩耗試験方法を示す図である。FIG. 1 is a diagram showing a method for testing the wear of a covered electric wire according to a first embodiment of the present invention.
【図２】この発明の第２の実施の形態に係る被覆電線の
摩耗試験方法を示す図である。FIG. 2 is a view showing a method for testing abrasion of a covered electric wire according to a second embodiment of the present invention.
【図３】この発明の第３の実施の形態に係る被覆電線の
摩耗試験方法を示す図である。FIG. 3 is a diagram showing a method for testing the abrasion of a covered electric wire according to a third embodiment of the present invention.
１ 支持天井 ２ 垂下紐 ２ａ 遊挿体支持部 ３ コルゲートチューブ ４ 被覆電線 ５ 支持架台 ６ 揺動機構 ６ａ クランク ６ｂ 中心軸 ６ｃ 円周部 ６ｄ アーム ６ｅ 連結節 ８ 電線固定具 １１ ＰＶＣ製チューブ １２ クランプ DESCRIPTION OF SYMBOLS 1 Support ceiling 2 Hanging cord 2a Play insertion body support part 3 Corrugated tube 4 Insulated wire 5 Support stand 6 Swing mechanism 6a Crank 6b Central axis 6c Circumference 6d Arm 6e Connection section 8 Wire fixture 11 PVC tube 12 Clamp
Claims (5)
被覆電線の表面の摩耗を試験する被覆電線の摩耗試験方
法であって、 前記被覆電線を、支持天井から垂下された前記遊挿体に
接触するように遊挿する工程と、 前記被覆電線の両端を、前記被覆電線の線軸を前記遊挿
体の線軸に略揃えるようにして所定の支持架台に固定す
る工程と、 揺動機構を駆動させて、前記被覆電線を前記遊挿体内で
前記線軸方向に揺動する工程とを備える被覆電線の摩耗
試験方法。1. A method for testing the abrasion of a surface of a covered electric wire which is used by being housed in a predetermined play insertion body, wherein the covered electric wire is suspended from a supporting ceiling. A step of loosely inserting the covered electric wire into contact with a body, a step of fixing both ends of the covered electric wire to a predetermined support base such that a line axis of the covered electric wire is substantially aligned with a line axis of the loose inserted body, And swinging the covered electric wire in the direction of the wire axis in the play insertion body.
法であって、 前記遊挿体はコルゲートチューブである被覆電線の摩耗
試験方法。2. The method for testing abrasion of an insulated wire according to claim 1, wherein the loose insert is a corrugated tube.
法であって、 前記遊挿体は樹脂チューブである被覆電線の摩耗試験方
法。3. The method for testing abrasion of a covered electric wire according to claim 1, wherein the loosely inserted body is a resin tube.
法であって、 前記遊挿体は環状のクランプである被覆電線の摩耗試験
方法。4. The method of claim 1, wherein the loose insert is an annular clamp.
載の被覆電線の摩耗試験方法に使用される摩耗試験装置
であって、 支持天井から前記遊挿体を垂下する遊挿体支持部と、 前記遊挿体内に遊挿された前記被覆電線の両端を、前記
被覆電線の線軸を前記遊挿体の線軸に略揃えるようにし
て支持する支持架台と、 前記支持架台を前記線軸方向に揺動する揺動機構とを備
える摩耗試験装置。5. A wear test apparatus used in the method for testing a covered wire according to claim 1, wherein the play insert support portion suspends the play insert from a support ceiling. And a support base that supports both ends of the covered electric wire loosely inserted in the play insertion body such that the axis of the covered electric wire is substantially aligned with the line axis of the play insertion body, and the support base in the line axis direction. A wear test device comprising a swinging mechanism that swings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000110665A JP2001296227A (en) | 2000-04-12 | 2000-04-12 | Method and device for abrasion testing for covered electric wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000110665A JP2001296227A (en) | 2000-04-12 | 2000-04-12 | Method and device for abrasion testing for covered electric wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001296227A true JP2001296227A (en) | 2001-10-26 |
Family
ID=18623142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000110665A Pending JP2001296227A (en) | 2000-04-12 | 2000-04-12 | Method and device for abrasion testing for covered electric wire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001296227A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102175542A (en) * | 2011-01-06 | 2011-09-07 | 三峡大学 | Test bench for fretting abrasion of double-strand aluminum lead |
| CN107830999A (en) * | 2017-11-02 | 2018-03-23 | 国网新疆电力公司电力科学研究院 | A kind of fatigue tester suitable for device clamp |
| CN109297839A (en) * | 2018-09-25 | 2019-02-01 | 东莞市良讯电子科技有限公司 | Data line waves test machine |
| CN110631945A (en) * | 2019-10-25 | 2019-12-31 | 国网福建省电力有限公司电力科学研究院 | Wire swinging abrasion testing device under strong wind environment simulation |
| CN114184508A (en) * | 2021-11-30 | 2022-03-15 | 江苏龙创新材料科技有限公司 | Enameled wire paint wear resistance testing device and using method |
| KR102619603B1 (en) * | 2023-04-21 | 2024-01-03 | 주식회사 파인콤 | Test equipment for coating damage of mid-clamp cover material that guide safety wire ropes |
-
2000
- 2000-04-12 JP JP2000110665A patent/JP2001296227A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102175542A (en) * | 2011-01-06 | 2011-09-07 | 三峡大学 | Test bench for fretting abrasion of double-strand aluminum lead |
| CN107830999A (en) * | 2017-11-02 | 2018-03-23 | 国网新疆电力公司电力科学研究院 | A kind of fatigue tester suitable for device clamp |
| CN107830999B (en) * | 2017-11-02 | 2019-10-29 | 国网新疆电力公司电力科学研究院 | A kind of fatigue tester suitable for device clamp |
| CN109297839A (en) * | 2018-09-25 | 2019-02-01 | 东莞市良讯电子科技有限公司 | Data line waves test machine |
| CN109297839B (en) * | 2018-09-25 | 2021-04-30 | 东莞市良讯电子科技有限公司 | Data line swing test machine |
| CN110631945A (en) * | 2019-10-25 | 2019-12-31 | 国网福建省电力有限公司电力科学研究院 | Wire swinging abrasion testing device under strong wind environment simulation |
| CN114184508A (en) * | 2021-11-30 | 2022-03-15 | 江苏龙创新材料科技有限公司 | Enameled wire paint wear resistance testing device and using method |
| KR102619603B1 (en) * | 2023-04-21 | 2024-01-03 | 주식회사 파인콤 | Test equipment for coating damage of mid-clamp cover material that guide safety wire ropes |
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