JP2013051800A - Protector and protector mounting structure - Google Patents

Protector and protector mounting structure Download PDF

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JP2013051800A
JP2013051800A JP2011188019A JP2011188019A JP2013051800A JP 2013051800 A JP2013051800 A JP 2013051800A JP 2011188019 A JP2011188019 A JP 2011188019A JP 2011188019 A JP2011188019 A JP 2011188019A JP 2013051800 A JP2013051800 A JP 2013051800A
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metal pipe
protector
corrugated tube
edge
axial direction
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Nozomu Yasuzawa
望 安沢
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Sumitomo Wiring Systems Ltd
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Sumitomo Wiring Systems Ltd
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Priority to JP2011188019A priority Critical patent/JP2013051800A/en
Priority to PCT/JP2012/054355 priority patent/WO2013031261A1/en
Publication of JP2013051800A publication Critical patent/JP2013051800A/en
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/06—Joints for connecting lengths of protective tubing or channels, to each other or to casings, e.g. to distribution boxes; Ensuring electrical continuity in the joint
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Details Of Indoor Wiring (AREA)
  • Joints That Cut Off Fluids, And Hose Joints (AREA)

Abstract

PROBLEM TO BE SOLVED: To prevent an electric wire of a wire harness from contacting a terminal edge of a metallic pipe and being damaged when the wire harness inserted in the metallic pipe is drawn from a terminal and inserted in a corrugated tube, and easily and reliably position and fix an end of the corrugated tube.SOLUTION: An edge coating part coating a terminal edge of a metallic pipe is provided at an intermediate position in an axial direction of a protector, and a substantially cylindrical portion from the edge coating part to one end in the axial direction of the protector serves as a metallic pipe fitting part fitted inside the end of the metallic pipe. A substantially cylindrical portion from the edge coating part to the other end in the axial direction of the protector serves as a corrugated tube fitting part fitted inside the end of the corrugated tube. Concave/convex parts fitted with valley and hill parts at the corrugated tube end are provided on an outer periphery of the corrugated tube fitting part.

Description

本発明はプロテクタおよび該プロテクタの取付構造に関し、詳しくは、金属パイプに挿通したワイヤハーネスを金属パイプの端末より引き出してコルゲートチューブに挿通する際に、金属パイプの端末エッジにワイヤハーネスの電線が当接して損傷するのを防止すると共に、金属パイプに隣接配置するコルゲートチューブの端部の位置決めも行うものである。   The present invention relates to a protector and a mounting structure for the protector. Specifically, when a wire harness inserted through a metal pipe is pulled out from the end of the metal pipe and inserted into a corrugated tube, the wire harness wire is applied to the end edge of the metal pipe. In addition to preventing contact and damage, positioning of the end of the corrugated tube adjacent to the metal pipe is also performed.

従来、ハイブリッド自動車や電気自動車のバッテリとインバータとの間やインバータとモータとの間などに配索されるワイヤハーネスの電線をアルミニウム系や鉄系等の金属パイプに挿通して配線する場合が多い。例えば、特開２０１０−２１５０１０号公報（特許文献１）では、ハイブリッド自動車の後部から前部へと配索する複数の電線２からなるワイヤハーネス１を金属パイプ３に挿通し、該金属パイプ３をフロアパネル５の下面に沿って固定している［図５（Ａ）、（Ｂ）参照］。   Conventionally, there are many cases where wires of wire harnesses routed between a battery and an inverter of a hybrid vehicle or an electric vehicle or between an inverter and a motor are inserted through a metal pipe such as an aluminum-based or iron-based wire. . For example, in Japanese Unexamined Patent Application Publication No. 2010-2105010 (Patent Document 1), a wire harness 1 including a plurality of electric wires 2 routed from the rear part to the front part of a hybrid vehicle is inserted into a metal pipe 3, and the metal pipe 3 is It is fixed along the lower surface of the floor panel 5 (see FIGS. 5A and 5B).

一方、前記金属パイプ３に挿通するワイヤハーネス１の両端部分は、配索スペースに制約のあるエンジンルームや後部車室内などに配索されるため、該領域では金属パイプ３ではなくコルゲートチューブ等の可撓性を有する外装材にワイヤハーネス１を挿通して接続相手側機器まで配索する場合が多い。しかし、図６（Ａ）のように、隣接配置したコルゲートチューブ６に挿通するためにワイヤハーネス１を金属パイプ３の端末から引き出す場合、ワイヤハーネス１の配索方向や車両振動等によって、ワイヤハーネス１の電線２が金属パイプ３の端末エッジ４に当接して損傷するという問題がある。   On the other hand, since both end portions of the wire harness 1 inserted into the metal pipe 3 are routed in an engine room or a rear passenger compartment where the space for placement is restricted, a corrugated tube or the like is used instead of the metal pipe 3 in the region. In many cases, the wire harness 1 is inserted through a flexible exterior material and wired up to the connection counterpart device. However, as shown in FIG. 6A, when the wire harness 1 is pulled out from the end of the metal pipe 3 so as to be inserted into the corrugated tube 6 disposed adjacent to the corrugated tube 6, the wire harness depends on the wiring direction of the wire harness 1, the vehicle vibration, or the like. There is a problem that the one electric wire 2 is in contact with the end edge 4 of the metal pipe 3 and is damaged.

また、金属パイプ３に隣接配置するコルゲートチューブ６の端部７の位置決めは、図６（Ｂ）のようなテープ（Ｔ）巻き固定により行っているが、コルゲートチューブ６と内部に挿通するワイヤハーネス１との外径差がある場合にはコルゲートチューブ端部７の形状が潰れて安定したテープ巻きがしにくくなり、テープ巻きした部分に口開き８が発生して固定力が不十分になったり外観不良の原因になったりするおそれがある。即ち、作業者の熟練度等によってテープ巻きによる位置決め固定にばらつきが生じやすいという問題がある。   The end portion 7 of the corrugated tube 6 disposed adjacent to the metal pipe 3 is positioned by tape (T) winding and fixing as shown in FIG. 6B. However, the wire harness is inserted into the corrugated tube 6 and the inside thereof. When there is a difference in outer diameter from 1, the shape of the corrugated tube end portion 7 is crushed and it becomes difficult to perform stable tape winding, and a mouth opening 8 is generated in the tape-wrapped portion, resulting in insufficient fixing force. There is a risk of appearance failure. That is, there is a problem that the positioning and fixing by tape winding is likely to vary depending on the skill level of the operator.

特開２０１０−２１５０１０号公報JP 2010-2105010 A

本発明は、金属パイプに挿通したワイヤハーネスを金属パイプの端末より引き出して隣接配置するコルゲートチューブに挿通する際に、金属パイプの端末エッジにワイヤハーネスの電線が当接して損傷するのを防止すると共に、コルゲートチューブの端部の位置決め固定も作業者の熟練度等によるばらつきがなく容易かつ確実に行えることを課題としている。   The present invention prevents the wire harness wires from coming into contact with and damaging the end edge of the metal pipe when the wire harness inserted through the metal pipe is drawn out from the end of the metal pipe and inserted into the corrugated tube disposed adjacent thereto. In addition, it is an object that positioning and fixing of the end portion of the corrugated tube can be easily and reliably performed without variations due to the skill level of the operator.

前記課題を解決するため、第１の発明は、ハイブリッド自動車または電気自動車に配索されるワイヤハーネスを挿通する金属パイプの端部および周方向に連続する谷部と山部を軸線方向に交互に設けた樹脂製のコルゲートチューブの端部に一体的に取り付けて、前記金属パイプと前記コルゲートチューブとを軸線方向に連通させた状態で連結する樹脂またはゴム成形品からなる略円筒状のプロテクタであって、
前記プロテクタの軸線方向の中間位置に前記金属パイプの端末エッジを被覆するエッジ被覆部を設けていると共に、該エッジ被覆部から前記プロテクタの軸線方向の一端までの略円筒状部分を前記金属パイプの端部に内嵌する金属パイプ嵌合部とする一方、
前記エッジ被覆部から前記プロテクタの軸線方向の他端までの略円筒状部分を前記コルゲートチューブの端部に内嵌するコルゲートチューブ嵌合部とし、該コルゲートチューブ嵌合部の外周面には、前記コルゲートチューブ端部の谷部と山部に嵌合する凹凸部を設けていることを特徴とするプロテクタを提供している。 In order to solve the above-mentioned problem, the first aspect of the present invention provides an axially extending end portion of a metal pipe that passes through a wire harness routed in a hybrid vehicle or an electric vehicle, and a trough portion and a mountain portion that are continuous in the circumferential direction. It is a substantially cylindrical protector made of a resin or rubber molded product that is integrally attached to an end portion of a provided resin corrugated tube and connects the metal pipe and the corrugated tube in a state of being communicated in the axial direction. And
An edge covering portion for covering the end edge of the metal pipe is provided at an intermediate position in the axial direction of the protector, and a substantially cylindrical portion from the edge covering portion to one end in the axial direction of the protector is disposed on the metal pipe. While it is a metal pipe fitting part that fits inside the end part,
A substantially cylindrical portion from the edge covering portion to the other end in the axial direction of the protector is used as a corrugated tube fitting portion that fits inside the end portion of the corrugated tube, and the outer peripheral surface of the corrugated tube fitting portion includes The protector characterized by providing the uneven | corrugated | grooved part fitted to the trough part and peak part of a corrugated tube edge part is provided.

前記のように、第１の発明のプロテクタは軸線方向の中間位置に金属パイプの端末エッジを被覆するエッジ被覆部を設けているため、金属パイプの端末から引き出されるワイヤハーネスの電線が金属パイプの端末エッジに当接して損傷を受けることが防止される。また、前記エッジ被覆部から軸線方向の一端までの略円筒状の金属パイプ嵌合部を金属パイプの端部に内嵌させることにより、プロテクタを金属パイプの端部に固定し、エッジ被覆部を金属パイプの端末エッジ上に安定保持することができる。   As described above, since the protector of the first invention is provided with the edge covering portion that covers the end edge of the metal pipe at the intermediate position in the axial direction, the wire harness wire drawn out from the end of the metal pipe is connected to the metal pipe. Contact with the terminal edge is prevented from being damaged. Further, the protector is fixed to the end of the metal pipe by fitting a substantially cylindrical metal pipe fitting portion from the edge covering portion to one end in the axial direction in the end portion of the metal pipe, and the edge covering portion is It can be held stably on the end edge of the metal pipe.

また、前記プロテクタのエッジ被覆部から軸線方向の他端までの略円筒状部分をコルゲートチューブの端部に内嵌するコルゲートチューブ嵌合部とし、該コルゲートチューブ嵌合部の外周面には、コルゲートチューブ端部の谷部と山部に嵌合する凹凸部を設けている。したがって、プロテクタのコルゲートチューブ嵌合部を金属パイプに隣接配置するコルゲートチューブの端部の内周面側に差し込んで凹凸部をコルゲートチューブ端部の谷部と山部に嵌合させるだけで、金属パイプの端部に固定するプロテクタの所定位置にコルゲートチューブの端部をしっかりと固定することができる。即ち、前記プロテクタにより、金属パイプに隣接配置するコルゲートチューブの端部の位置決め固定も容易に行うことができ、従来のテープ巻きのみによる位置決め固定と比べて固定状態のばらつきを大幅に低減することができる。   Further, a substantially cylindrical portion from the edge covering portion of the protector to the other end in the axial direction is used as a corrugated tube fitting portion that fits inside the end portion of the corrugated tube, and the corrugated tube fitting portion has a corrugated outer peripheral surface. Concave and convex portions are provided that fit into the troughs and crests of the tube end. Therefore, just insert the corrugated tube fitting part of the protector into the inner peripheral surface side of the end part of the corrugated tube adjacent to the metal pipe and fit the uneven part to the valley part and peak part of the corrugated tube end part. The end portion of the corrugated tube can be firmly fixed to a predetermined position of the protector fixed to the end portion of the pipe. That is, the protector can easily position and fix the end of the corrugated tube adjacent to the metal pipe, and greatly reduce the variation in the fixed state compared to the positioning and fixing only by the conventional tape winding. it can.

また、コルゲートチューブの端部の位置決め固定をより確実にするために、前記プロテクタを取り付けたコルゲートチューブの端部から金属パイプの端部にかけての外周面にテープ巻きを行う際にも、前記プロテクタのコルゲートチューブ嵌合部がコルゲートチューブの端部に内嵌されているためチューブ端部の形状潰れが防止でき、作業者の熟練度等を問わず安定したテープ巻き固定が可能となる。よって、固定力も一層高められ、外観不良も低減することができる。   Further, in order to more reliably position and fix the end portion of the corrugated tube, when the tape is wound around the outer peripheral surface from the end portion of the corrugated tube to which the protector is attached to the end portion of the metal pipe, Since the corrugated tube fitting portion is fitted in the end portion of the corrugated tube, the shape of the tube end portion can be prevented from being crushed, and stable tape winding and fixing can be performed regardless of the skill level of the operator. Therefore, the fixing force can be further increased and the appearance defect can be reduced.

前記第１の発明のプロテクタは、ワイヤハーネスの外装材である金属パイプとコルゲートチューブとを軸線方向に連通させた状態で連結する構造としている。よって、金属パイプやコルゲートチューブへのワイヤハーネスの挿通を阻害することなく、金属パイプの端末エッジからの電線保護やコルゲートチューブ端末の位置決め固定を行うことができる。   The protector according to the first aspect of the invention has a structure in which a metal pipe, which is an exterior material of a wire harness, and a corrugated tube are connected in a state where they are communicated in the axial direction. Therefore, electric wire protection from the terminal edge of the metal pipe and positioning and fixing of the corrugated tube terminal can be performed without hindering insertion of the wire harness into the metal pipe or corrugated tube.

前記プロテクタのエッジ被覆部は周方向に連続する凸状とする一方、
前記金属パイプ嵌合部には弾性係止片を設け、該弾性係止片には前記金属パイプの端部に穿設した被係止穴に係止する係止凸部を設けていることが好ましい。 While the edge covering portion of the protector is convex in the circumferential direction,
The metal pipe fitting portion is provided with an elastic locking piece, and the elastic locking piece is provided with a locking convex portion for locking in a locked hole drilled in an end portion of the metal pipe. preferable.

前記のように、プロテクタのエッジ被覆部を周方向に連続する凸状とすることで、金属パイプの端末エッジを全周にわたって確実に被覆して電線を保護することができる。
また、前記プロテクタの金属パイプ嵌合部と金属パイプの端部との固定力を高めるために、金属パイプの端部に穿設する被係止穴を少なくとも対向位置に１対設け、該被係止穴に係止する係止凸部を設けた前記金属パイプ嵌合部の弾性係止片も少なくとも対向位置に１対設けておくことがより好ましい。弾性係止片は、金属パイプ嵌合部の先端側より、軸線方向に延在させるスリットを周方向に間隔をあけて設けることにより形成することができる。 As described above, by making the edge covering portion of the protector convex in the circumferential direction, the end edge of the metal pipe can be reliably covered over the entire circumference to protect the electric wire.
In addition, in order to increase the fixing force between the metal pipe fitting portion of the protector and the end portion of the metal pipe, a pair of locked holes to be drilled in the end portion of the metal pipe is provided at least in the opposing position, It is more preferable that a pair of elastic locking pieces of the metal pipe fitting portion provided with a locking projection for locking in the stop hole is provided at least in a facing position. The elastic locking piece can be formed by providing slits extending in the axial direction from the front end side of the metal pipe fitting portion at intervals in the circumferential direction.

第２の発明では、前記第１の発明のプロテクタの取付構造、即ち、前記プロテクタのコルゲートチューブ嵌合部を、金属パイプから引き出したワイヤハーネスを挿通するコルゲートチューブの端部に内嵌し前記コルゲートチューブ嵌合部の凹凸部を前記コルゲートチューブ端部の谷部と山部に嵌合させて前記プロテクタを前記コルゲートチューブの端部に取り付け、かつ
前記プロテクタのエッジ被覆部を、ワイヤハーネスを挿通する前記金属パイプの端末エッジに被せると共に、前記金属パイプ嵌合部を前記金属パイプの端部に内嵌して前記プロテクタを前記金属パイプの端部に取り付けており、
前記プロテクタを取り付けた前記コルゲートチューブの端部から前記金属パイプの端部にかけての外周面に粘着テープを巻き付けているプロテクタの取付構造を提供している。 In the second invention, the mounting structure of the protector of the first invention, that is, the corrugated tube fitting portion of the protector is internally fitted to the end portion of the corrugated tube through which the wire harness drawn from the metal pipe is inserted. The uneven portion of the tube fitting portion is fitted to the valley portion and the mountain portion of the end portion of the corrugated tube, the protector is attached to the end portion of the corrugated tube, and the edge covering portion of the protector is inserted through the wire harness. Covering the end edge of the metal pipe, the metal pipe fitting portion is internally fitted to the end portion of the metal pipe, and the protector is attached to the end portion of the metal pipe,
A protector mounting structure is provided in which an adhesive tape is wound around an outer peripheral surface from an end of the corrugated tube to which the protector is mounted to an end of the metal pipe.

前記のように、プロテクタを取り付けた前記コルゲートチューブの端部から金属パイプの端部にかけての外周面に粘着テープを巻き付けることで、コルゲートチューブの端部の位置決め固定をより確実に行うことができる。   As described above, the end portion of the corrugated tube can be positioned and fixed more reliably by winding the adhesive tape around the outer peripheral surface from the end portion of the corrugated tube to which the protector is attached to the end portion of the metal pipe.

前述したように、第１のプロテクタならびに第２の発明で取り付けられるプロテクタは、軸線方向の中間位置に金属パイプの端末エッジを被覆するエッジ被覆部を設けているため、金属パイプの端末から引き出されるワイヤハーネスの電線が金属パイプの端末エッジに当接して損傷を受けることが防止される。また、前記エッジ被覆部から軸線方向の一端までの略円筒状の金属パイプ嵌合部を金属パイプの端部に内嵌させることにより、プロテクタを金属パイプの端部に固定し、エッジ被覆部を金属パイプの端末エッジ上に安定保持することができる。   As described above, since the first protector and the protector attached in the second invention are provided with the edge covering portion that covers the end edge of the metal pipe at the intermediate position in the axial direction, they are pulled out from the end of the metal pipe. It is prevented that the electric wire of the wire harness contacts the end edge of the metal pipe and is damaged. Further, the protector is fixed to the end of the metal pipe by fitting a substantially cylindrical metal pipe fitting portion from the edge covering portion to one end in the axial direction in the end portion of the metal pipe, and the edge covering portion is It can be held stably on the end edge of the metal pipe.

また前記のように、プロテクタの前記エッジ被覆部から軸線方向の他端までの略円筒状部分をコルゲートチューブの端部に内嵌するコルゲートチューブ嵌合部とし、該コルゲートチューブ嵌合部の外周面には、コルゲートチューブ端部の谷部と山部に嵌合する凹凸部を設ける構成としている。よって、前記プロテクタのコルゲートチューブ嵌合部を金属パイプに隣接配置するコルゲートチューブの端部の内周面側に差し込んで凹凸部をコルゲートチューブ端部の谷部と山部に嵌合させるだけで、金属パイプの端部に固定するプロテクタの所定位置にコルゲートチューブの端部をしっかりと固定することができる。即ち、前記プロテクタにより、金属パイプに隣接配置するコルゲートチューブの端部の位置決め固定も容易に行うことができ、従来のテープ巻きのみによる位置決め固定と比べて固定状態のばらつきを大幅に低減することができる。   Further, as described above, a substantially cylindrical portion from the edge covering portion of the protector to the other end in the axial direction is a corrugated tube fitting portion that fits into the end portion of the corrugated tube, and the outer peripheral surface of the corrugated tube fitting portion. In this configuration, a concavo-convex portion that fits into a trough and a peak at the end of the corrugated tube is provided. Therefore, just by inserting the corrugated tube fitting portion of the protector into the inner peripheral surface side of the end portion of the corrugated tube arranged adjacent to the metal pipe and fitting the uneven portion to the valley portion and the mountain portion of the corrugated tube end portion, The end portion of the corrugated tube can be firmly fixed at a predetermined position of the protector fixed to the end portion of the metal pipe. That is, the protector can easily position and fix the end of the corrugated tube adjacent to the metal pipe, and greatly reduce the variation in the fixed state compared to the positioning and fixing only by the conventional tape winding. it can.

また、コルゲートチューブの端部の位置決め固定をより確実にするために、前記プロテクタを取り付けたコルゲートチューブの端部から金属パイプの端部にかけての外周面にテープ巻きを行う際にも、前記プロテクタのコルゲートチューブ嵌合部がコルゲートチューブの端部に内嵌されてチューブ端部の形状潰れが防止されるため、作業者の熟練度等を問わず安定したテープ巻き固定が可能となる。よって固定力も一層高められ、外観不良も低減することができる。   Further, in order to more reliably position and fix the end portion of the corrugated tube, when the tape is wound around the outer peripheral surface from the end portion of the corrugated tube to which the protector is attached to the end portion of the metal pipe, Since the corrugated tube fitting portion is fitted into the end portion of the corrugated tube to prevent the shape of the tube end portion from being crushed, stable tape winding and fixing are possible regardless of the skill level of the operator. Therefore, the fixing force can be further increased and the appearance defect can be reduced.

本実施形態のプロテクタを示し、（Ａ）は斜視図、（Ｂ）はＡ−Ａ線断面図である。The protector of this embodiment is shown, (A) is a perspective view, (B) is an AA sectional view. プロテクタをコルゲートチューブの端部に取り付けた状態を示し、（Ａ）は一部断面図、（Ｂ）は側面図である。The state which attached the protector to the edge part of a corrugated tube is shown, (A) is a partial cross section figure, (B) is a side view. コルゲートチューブの端部に取り付けたプロテクタを金属パイプの端部に取り付けた状態の一部断面図である。It is a partial cross section figure of the state which attached the protector attached to the edge part of a corrugated tube to the edge part of a metal pipe. プロテクタを取り付けたコルゲートチューブの端部から金属パイプの端部にかけての外周面に粘着テープを巻き付けた状態を示す側面図である。It is a side view which shows the state which wound the adhesive tape around the outer peripheral surface from the edge part of the corrugated tube which attached the protector to the edge part of a metal pipe. 従来例を示す図である。It is a figure which shows a prior art example. 従来例を示す図である。It is a figure which shows a prior art example.

以下、本発明の実施形態を図面を参照して説明する。
図１乃至図４は本発明の実施形態を示している。本実施形態では、ハイブリッド自動車のバッテリとインバータ（図示せず）との間に３本の絶縁被覆電線Ｗ（以下、電線Ｗという）からなるワイヤハーネスＷ／Ｈを配索し、車体の床下配線領域（図示せず）ではアルミニウム系金属からなる金属パイプ２０に前記ワイヤハーネスＷ／Ｈを挿通している。
ワイヤハーネスＷ／Ｈが前記床下配線領域から車両前部のエンジンルーム（図示せず）や車両後部の車室内（図示せず）に引き込まれる位置では、図２〜図４に示すように、金属パイプ２０の端末開口２２からワイヤハーネスＷ／Ｈを引き出し、該引き出したワイヤハーネスＷ／Ｈを隣接配置するコルゲートチューブ３０に挿通している。コルゲートチューブ３０は、周方向に連続する谷部３１と山部３２を軸線方向に交互に設けた樹脂成形品であり、本実施形態では図１（Ａ）、（Ｂ）に示す略円筒状のプロテクタ１０を金属パイプ２０の端部２１とコルゲートチューブ３０の端部３３に一体的に取り付けて、金属パイプ２０とコルゲートチューブ３０とを軸線方向に連通させた状態で連結している。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 4 show an embodiment of the present invention. In the present embodiment, a wire harness W / H composed of three insulated coated wires W (hereinafter referred to as wires W) is routed between a battery of a hybrid vehicle and an inverter (not shown), and the underfloor wiring of the vehicle body In the region (not shown), the wire harness W / H is inserted through a metal pipe 20 made of an aluminum-based metal.
In a position where the wire harness W / H is drawn into the engine room (not shown) in the front part of the vehicle or the vehicle interior (not shown) in the rear part of the vehicle from the underfloor wiring region, as shown in FIGS. The wire harness W / H is drawn out from the terminal opening 22 of the pipe 20 and the drawn wire harness W / H is inserted through the corrugated tube 30 disposed adjacent thereto. The corrugated tube 30 is a resin molded product in which troughs 31 and crests 32 that are continuous in the circumferential direction are alternately provided in the axial direction. In this embodiment, the corrugated tube 30 has a substantially cylindrical shape shown in FIGS. The protector 10 is integrally attached to the end portion 21 of the metal pipe 20 and the end portion 33 of the corrugated tube 30, and the metal pipe 20 and the corrugated tube 30 are connected in a state of being communicated in the axial direction.

プロテクタ１０は樹脂成形品からなる略円筒状とし、軸線方向の中間位置には金属パイプ２０の端末エッジ２３を被覆する凸状のエッジ被覆部１１を周方向に連続して設けている。
また、エッジ被覆部１１からプロテクタ１０の軸線方向の一端（図１では左端）までの略円筒部分を金属パイプ２０の端部２１に内嵌する金属パイプ嵌合部１２としている。金属パイプ嵌合部１２には対向位置に１対の弾性係止片１３を設けており、該弾性係止片１３には、金属パイプ２０の端部２１の対向位置に穿設した１対の被係止穴２４にそれぞれ係止する係止凸部１３ａを設けている。弾性係止片１３は、金属パイプ嵌合部１２の先端側より、軸線方向に延在させる１対のスリット１３ｂを周方向に間隔をあけて設けることにより形成できる。 The protector 10 has a substantially cylindrical shape made of a resin molded product, and a convex edge covering portion 11 covering the end edge 23 of the metal pipe 20 is continuously provided in the circumferential direction at an intermediate position in the axial direction.
In addition, a substantially cylindrical portion from the edge covering portion 11 to one end (left end in FIG. 1) of the protector 10 in the axial direction is used as a metal pipe fitting portion 12 that fits into the end portion 21 of the metal pipe 20. The metal pipe fitting portion 12 is provided with a pair of elastic locking pieces 13 at opposite positions, and the elastic locking pieces 13 are provided with a pair of holes formed at opposite positions of the end portion 21 of the metal pipe 20. Locking projections 13 a that are locked in the locked holes 24 are provided. The elastic locking piece 13 can be formed by providing a pair of slits 13b extending in the axial direction from the distal end side of the metal pipe fitting portion 12 with a gap in the circumferential direction.

さらに、エッジ被覆部１１からプロテクタ１０の軸線方向の他端（図１では右端）までの略円筒部分をコルゲートチューブ３０の端部３３に内嵌するコルゲートチューブ嵌合部１４とし、コルゲートチューブ嵌合部１４の外周面には、コルゲートチューブ３０の端部３３の谷部３１と山部３２に嵌合する凹凸部１５を周方向に連続して設けている。   Further, a corrugated tube fitting portion 14 that fits into the end portion 33 of the corrugated tube 30 is a substantially cylindrical portion from the edge covering portion 11 to the other end (right end in FIG. 1) of the protector 10 in the axial direction. On the outer peripheral surface of the portion 14, the uneven portion 15 that fits into the valley portion 31 and the peak portion 32 of the end portion 33 of the corrugated tube 30 is provided continuously in the circumferential direction.

以下、金属パイプ２０の端部２１およびコルゲートチューブ３０の端部３３へのプロテクタ１０の取り付けについて説明する。
まず、図２（Ａ）、（Ｂ）に示すように、プロテクタ１０のコルゲートチューブ嵌合部１４を、金属パイプ２０から引き出したワイヤハーネスＷ／Ｈを挿通するコルゲートチューブ３０の端部３３に内嵌し、コルゲートチューブ嵌合部１４の凹凸部１５をコルゲートチューブ３０の端部３３の谷部３１と山部３２に嵌合させてプロテクタ１０をコルゲートチューブ３０の端部３３に取り付ける。 Hereinafter, attachment of the protector 10 to the end 21 of the metal pipe 20 and the end 33 of the corrugated tube 30 will be described.
First, as shown in FIGS. 2A and 2B, the corrugated tube fitting portion 14 of the protector 10 is internally connected to the end portion 33 of the corrugated tube 30 through which the wire harness W / H drawn from the metal pipe 20 is inserted. The protector 10 is attached to the end portion 33 of the corrugated tube 30 by fitting the concave and convex portion 15 of the corrugated tube fitting portion 14 to the valley portion 31 and the peak portion 32 of the end portion 33 of the corrugated tube 30.

続いて、図３のように、プロテクタ１０のエッジ被覆部１１を、ワイヤハーネスＷ／Ｈを挿通する金属パイプ２０の端末エッジ２３に突き当て被覆すると共に、金属パイプ嵌合部１２を金属パイプ２０の端部２１に内嵌してプロテクタ１０を金属パイプ２０の端部２１に取り付ける。具体的には、係止凸部１３ａを設けた弾性係止片１３を撓ませながら金属パイプ嵌合部１２を金属パイプ２０の端部２１内周面側に差し込み、係止凸部１３ａが金属パイプ２０の端部２１に設けた被係止穴２４に係止すると共に弾性係止片１３が弾性復帰することにより金属パイプ嵌合部１２が金属パイプ２０の端部２１に内嵌固定される。この内嵌固定と同時に、エッジ被覆部１１が金属パイプ２０の端末エッジ２３に被せられる。   Subsequently, as shown in FIG. 3, the edge covering portion 11 of the protector 10 is abutted and covered with the end edge 23 of the metal pipe 20 through which the wire harness W / H is inserted, and the metal pipe fitting portion 12 is covered with the metal pipe 20. The protector 10 is attached to the end 21 of the metal pipe 20 by being fitted into the end 21 of the metal pipe 20. Specifically, while bending the elastic locking piece 13 provided with the locking convex portion 13a, the metal pipe fitting portion 12 is inserted into the inner peripheral surface side of the end portion 21 of the metal pipe 20, and the locking convex portion 13a is made of metal. The metal pipe fitting portion 12 is fitted and fixed to the end portion 21 of the metal pipe 20 by being locked in the locked hole 24 provided in the end portion 21 of the pipe 20 and elastically returning the elastic locking piece 13. . Simultaneously with the internal fitting fixing, the edge covering portion 11 is put on the end edge 23 of the metal pipe 20.

最後に、図４のように、プロテクタ１０を取り付けたコルゲートチューブ３０の端部３３から金属パイプ２０の端部２１にかけての外周面に粘着テープＴを巻き付けることで、プロテクタ１０の取り付け作業が完了する。   Finally, as shown in FIG. 4, the attachment work of the protector 10 is completed by winding the adhesive tape T around the outer peripheral surface from the end portion 33 of the corrugated tube 30 to which the protector 10 is attached to the end portion 21 of the metal pipe 20. .

前述したように、本実施形態のプロテクタ１０は、軸線方向の中間位置に金属パイプ２０の端末エッジ２３を被覆するエッジ被覆部１１を設けているため、金属パイプ２０の端末開口２２から引き出されるワイヤハーネスＷ／Ｈの電線Ｗが金属パイプ２０の端末エッジ２３に当接して損傷を受けることが防止される。また、エッジ被覆部１１から軸線方向の一端までの略円筒状の金属パイプ嵌合部１２を金属パイプ２０の端部２１に内嵌させることにより、プロテクタ１０を金属パイプ２０の端部２１に固定し、エッジ被覆部１１を金属パイプ２０の端末エッジ２３上に安定保持することができる。   As described above, the protector 10 of the present embodiment is provided with the edge covering portion 11 that covers the end edge 23 of the metal pipe 20 at an intermediate position in the axial direction, and therefore the wire drawn from the end opening 22 of the metal pipe 20. The electric wire W of the harness W / H is prevented from coming into contact with the end edge 23 of the metal pipe 20 and being damaged. Further, the protector 10 is fixed to the end portion 21 of the metal pipe 20 by fitting the substantially cylindrical metal pipe fitting portion 12 from the edge covering portion 11 to one end in the axial direction into the end portion 21 of the metal pipe 20. In addition, the edge covering portion 11 can be stably held on the end edge 23 of the metal pipe 20.

また前記のように、プロテクタ１０のエッジ被覆部１１から軸線方向の他端までの略円筒状部分をコルゲートチューブ３０の端部３３に内嵌するコルゲートチューブ嵌合部１４とし、該コルゲートチューブ嵌合部１４の外周面には、コルゲートチューブ３０の端部３３の谷部３１と山部３２に嵌合する凹凸部１５を設ける構成としている。よって、プロテクタ１０のコルゲートチューブ嵌合部１４を金属パイプ２０に隣接配置するコルゲートチューブ３０の端部３３の内周面側に差し込んで凹凸部１５をコルゲートチューブ３０の端部３３の谷部３１と山部３２に嵌合させるだけで、金属パイプ２０の端部２１に固定するプロテクタ１０の所定位置にコルゲートチューブ３０の端部３３をしっかりと固定することができる。即ち、プロテクタ１０により、コルゲートチューブ３０の端部３３の位置決め固定も容易に行うことができ、従来のテープ巻きのみによる位置決め固定と比べて固定状態のばらつきを大幅に低減することができる。   Further, as described above, the substantially cylindrical portion from the edge covering portion 11 of the protector 10 to the other end in the axial direction is the corrugated tube fitting portion 14 fitted into the end portion 33 of the corrugated tube 30, and the corrugated tube fitting is performed. On the outer peripheral surface of the portion 14, the concave and convex portion 15 that fits into the valley portion 31 and the mountain portion 32 of the end portion 33 of the corrugated tube 30 is provided. Therefore, the corrugated tube fitting portion 14 of the protector 10 is inserted into the inner peripheral surface side of the end portion 33 of the corrugated tube 30 disposed adjacent to the metal pipe 20, and the uneven portion 15 is connected to the valley portion 31 of the end portion 33 of the corrugated tube 30. The end portion 33 of the corrugated tube 30 can be firmly fixed to a predetermined position of the protector 10 fixed to the end portion 21 of the metal pipe 20 simply by being fitted to the peak portion 32. That is, the protector 10 can easily perform positioning and fixing of the end portion 33 of the corrugated tube 30 and can greatly reduce the variation in the fixing state as compared with positioning and fixing only by conventional tape winding.

また、コルゲートチューブ３０の端部３３の位置決め固定をより確実にするために、プロテクタ１０を取り付けたコルゲートチューブ３０の端部３３から金属パイプ２０の端部２１にかけての外周面にテープ（Ｔ）巻きを行う際にも、プロテクタ１０のコルゲートチューブ嵌合部１４がコルゲートチューブ３０の端部３３に内嵌されてチューブ端部の形状潰れが防止されるため、作業者の熟練度等を問わず安定したテープ巻き固定が可能となる。よって固定力も一層高められ、外観不良も低減することができる。   Further, in order to make positioning and fixing of the end portion 33 of the corrugated tube 30 more reliable, tape (T) is wound around the outer peripheral surface from the end portion 33 of the corrugated tube 30 to which the protector 10 is attached to the end portion 21 of the metal pipe 20. Even when the corrugated tube is fitted, the corrugated tube fitting portion 14 of the protector 10 is fitted into the end portion 33 of the corrugated tube 30 to prevent the end of the tube from being crushed, so that it is stable regardless of the skill level of the operator. Tape winding fixation is possible. Therefore, the fixing force can be further increased and the appearance defect can be reduced.

１０ プロテクタ
１１ エッジ被覆部
１２ 金属パイプ嵌合部
１３ 弾性係止片
１３ａ 係止凸部
１４ コルゲートチューブ嵌合部
１５ 凹凸部
２０ 金属パイプ
２１ 端部
２３ 端末エッジ
２４ 被係止穴
３０ コルゲートチューブ
３１ 谷部
３２ 山部
３３ 端部 DESCRIPTION OF SYMBOLS 10 Protector 11 Edge coating | cover part 12 Metal pipe fitting part 13 Elastic locking piece 13a Locking convex part 14 Corrugated tube fitting part 15 Uneven part 20 Metal pipe 21 End 23 Terminal edge 24 Locked hole 30 Corrugated tube 31 Valley Section 32 Mountain 33 End

Claims (3)

ハイブリッド自動車または電気自動車に配索されるワイヤハーネスを挿通する金属パイプの端部および周方向に連続する谷部と山部を軸線方向に交互に設けた樹脂製のコルゲートチューブの端部に一体的に取り付けて、前記金属パイプと前記コルゲートチューブとを軸線方向に連通させた状態で連結する樹脂またはゴム成形品からなる略円筒状のプロテクタであって、
前記プロテクタの軸線方向の中間位置に前記金属パイプの端末エッジを被覆するエッジ被覆部を設けていると共に、該エッジ被覆部から前記プロテクタの軸線方向の一端までの略円筒状部分を前記金属パイプの端部に内嵌する金属パイプ嵌合部とする一方、
前記エッジ被覆部から前記プロテクタの軸線方向の他端までの略円筒状部分を前記コルゲートチューブの端部に内嵌するコルゲートチューブ嵌合部とし、該コルゲートチューブ嵌合部の外周面には、前記コルゲートチューブ端部の谷部と山部に嵌合する凹凸部を設けていることを特徴とするプロテクタ。 Integral with the end of a metal corrugated tube in which the end of a metal pipe that passes through a wire harness routed in a hybrid vehicle or electric vehicle and the valley and ridge that continue in the circumferential direction are provided alternately in the axial direction A substantially cylindrical protector made of a resin or rubber molded product that is connected in a state where the metal pipe and the corrugated tube communicate with each other in the axial direction,
An edge covering portion for covering the end edge of the metal pipe is provided at an intermediate position in the axial direction of the protector, and a substantially cylindrical portion from the edge covering portion to one end in the axial direction of the protector is disposed on the metal pipe. While it is a metal pipe fitting part that fits inside the end part,
A substantially cylindrical portion from the edge covering portion to the other end in the axial direction of the protector is used as a corrugated tube fitting portion that fits inside the end portion of the corrugated tube, and the outer peripheral surface of the corrugated tube fitting portion includes The protector characterized by providing the uneven | corrugated | grooved part fitted to the trough part and peak part of a corrugated tube edge part. 前記プロテクタのエッジ被覆部は周方向に連続する凸状とする一方、
前記金属パイプ嵌合部には弾性係止片を設け、該弾性係止片には前記金属パイプの端部に穿設した被係止穴に係止する係止凸部を設けている請求項１に記載のプロテクタ。 While the edge covering portion of the protector is convex in the circumferential direction,
The metal pipe fitting portion is provided with an elastic locking piece, and the elastic locking piece is provided with a locking projection for locking in a locked hole drilled in an end of the metal pipe. The protector according to 1. 請求項１または請求項２に記載のプロテクタのコルゲートチューブ嵌合部を、金属パイプから引き出したワイヤハーネスを挿通するコルゲートチューブの端部に内嵌し前記コルゲートチューブ嵌合部の凹凸部を前記コルゲートチューブ端部の谷部と山部に嵌合させて前記プロテクタを前記コルゲートチューブの端部に取り付け、かつ
前記プロテクタのエッジ被覆部を、ワイヤハーネスを挿通する前記金属パイプの端末エッジに被せると共に、前記金属パイプ嵌合部を前記金属パイプの端部に内嵌して前記プロテクタを前記金属パイプの端部に取り付けており、
前記プロテクタを取り付けた前記コルゲートチューブの端部から前記金属パイプの端部にかけての外周面に粘着テープを巻き付けているプロテクタの取付構造。 The corrugated tube fitting portion of the protector according to claim 1 or 2 is internally fitted to an end portion of the corrugated tube that passes through a wire harness drawn from a metal pipe, and the corrugated portion of the corrugated tube fitting portion is formed into the corrugated portion. Fit the protector to the end of the corrugated tube by fitting it to the trough and peak of the tube end, and cover the edge covering portion of the protector over the end edge of the metal pipe that passes through the wire harness, The metal pipe fitting portion is internally fitted to the end portion of the metal pipe, and the protector is attached to the end portion of the metal pipe,
A protector mounting structure in which an adhesive tape is wound around an outer peripheral surface from an end of the corrugated tube to which the protector is mounted to an end of the metal pipe.
JP2011188019A 2011-08-30 2011-08-30 Protector and protector mounting structure Withdrawn JP2013051800A (en)

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PCT/JP2012/054355 WO2013031261A1 (en) 2011-08-30 2012-02-23 Protector and attachment structure for protector

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US9561758B2 (en) 2014-03-20 2017-02-07 Sumitomo Wiring Systems, Ltd. Wire harness with two external multi-diameter tubes and twist indicator device
WO2017073281A1 (en) * 2015-10-27 2017-05-04 住友電装株式会社 Shielded conduction path
JP2018093654A (en) * 2016-12-06 2018-06-14 矢崎総業株式会社 Cap for exterior end and wire harness
JP2018174347A (en) * 2018-07-18 2018-11-08 住友電装株式会社 Shield conductive path
JP2019053894A (en) * 2017-09-15 2019-04-04 住友電装株式会社 Wire harness
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JPH07332560A (en) * 1994-06-02 1995-12-22 Furukawa Electric Co Ltd:The Pipe joint
JPH0875060A (en) * 1994-08-30 1996-03-19 Aron Kasei Co Ltd Waterproofing different kind pipe joint
JPH1169561A (en) * 1997-08-21 1999-03-09 Sumitomo Wiring Syst Ltd Coupling member for sheathing material of wire harness

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US9561758B2 (en) 2014-03-20 2017-02-07 Sumitomo Wiring Systems, Ltd. Wire harness with two external multi-diameter tubes and twist indicator device
JP2016119749A (en) * 2014-12-19 2016-06-30 住友電装株式会社 Grommet and seal structure using the same
WO2017073281A1 (en) * 2015-10-27 2017-05-04 住友電装株式会社 Shielded conduction path
JP2017084547A (en) * 2015-10-27 2017-05-18 住友電装株式会社 Shielded conduction path
US10504637B2 (en) 2015-10-27 2019-12-10 Sumitomo Wiring Systems, Ltd. Shielded conduction path
JP2018093654A (en) * 2016-12-06 2018-06-14 矢崎総業株式会社 Cap for exterior end and wire harness
JP2019053894A (en) * 2017-09-15 2019-04-04 住友電装株式会社 Wire harness
JP2018174347A (en) * 2018-07-18 2018-11-08 住友電装株式会社 Shield conductive path
JP2021007292A (en) * 2020-05-01 2021-01-21 住友電装株式会社 Electric wire module

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