JP2013009547A

JP2013009547A - Electric wire protector and wire harness

Info

Publication number: JP2013009547A
Application number: JP2011141438A
Authority: JP
Inventors: Yoshikazu Hachiya; 賀一蜂矢
Original assignee: Sumitomo Wiring Systems Ltd; AutoNetworks Technologies Ltd; Sumitomo Electric Industries Ltd
Current assignee: Sumitomo Wiring Systems Ltd; AutoNetworks Technologies Ltd; Sumitomo Electric Industries Ltd
Priority date: 2011-06-27
Filing date: 2011-06-27
Publication date: 2013-01-10

Abstract

PROBLEM TO BE SOLVED: To protect a joint with a branch line present in an intermediate part of an electric wire by an insulator, and avoid an inconvenience that the joint of the electric wire is disjoined by a tensile force applied to the branch line.SOLUTION: An electric wire protector 10 comprises two insulation members 100 which are assembled by sandwiching a joint 80 of a first electric wire 91 and a second electric wire 92. The electric wire protector 10 is provided with a support part 11 formed to support the second electric wire 92 in a state where the second electric wire 92 is hooked and folded back along an outer edge. The outer edge, along which the second electric wire 92 is placed at the support part 11, forms each corner of a polygon all of whose angles are obtuse angles.

Description

本発明は、電線の中間部に存在する電線の接合部を保護する電線保護具及びそれを備えたワイヤハーネスに関する。 The present invention relates to an electric wire protector that protects a joint portion of an electric wire present in an intermediate portion of an electric wire, and a wire harness including the same.

自動車などの車両に搭載されるワイヤハーネスは、幹線を構成する第１の電線の中間部と、枝線を構成する第２の電線の一部とが接合された構造を有することがある。例えば、特許文献１には、第１の電線の中間部と第２の電線の端部とが、それらに圧着される圧着部材により接合された構造を有するワイヤハーネスが示されている。 A wire harness mounted on a vehicle such as an automobile may have a structure in which an intermediate portion of a first electric wire constituting a trunk line and a part of a second electric wire constituting a branch line are joined. For example, Patent Document 1 discloses a wire harness having a structure in which an intermediate portion of a first electric wire and an end portion of a second electric wire are joined by a crimping member that is crimped thereto.

また、ワイヤハーネスにおける電線の接合部は、被覆されることによって保護される必要がある。例えば、特許文献１に示されるワイヤハーネスにおいて、電線の接合部は、絶縁テープが巻き付けられることによって保護されている。 Moreover, the junction part of the electric wire in a wire harness needs to be protected by being coat | covered. For example, in the wire harness shown in Patent Document 1, the joint portion of the electric wire is protected by winding an insulating tape.

特開平５−１０１８６５号公報JP-A-5-101865

ところで、昨今、車両に搭載されるワイヤハーネスにおいて、軽量化及びコスト低減のため、より細い電線の採用が望まれている。しかしながら、２本の細い電線が圧着部材などによって接合される場合、電線の接合強度を十分に確保することが難しく、電線に加わる引っ張り力によって電線の接合が外れやすいという問題が顕在化する。そのことが、細い電線の採用によるワイヤハーネスの軽量化及びコスト低減の支障となっている。 By the way, in recent years, in wire harnesses mounted on vehicles, it has been desired to adopt thinner electric wires in order to reduce weight and reduce costs. However, when two thin electric wires are joined by a crimping member or the like, it is difficult to sufficiently secure the joining strength of the electric wires, and the problem that the joining of the electric wires is easily released due to the tensile force applied to the electric wires becomes obvious. This is a hindrance to the weight reduction and cost reduction of the wire harness due to the use of thin electric wires.

例えば、特許文献１に示されるように、絶縁テープが電線の接合部に巻き付けられた場合、枝線に加わる引っ張り力は、ほぼそのまま電線の接合部にも加わってしまうため、電線の接合が外れやすい。 For example, as shown in Patent Document 1, when the insulating tape is wound around the joint portion of the electric wire, the tensile force applied to the branch wire is almost directly applied to the joint portion of the electric wire, so that the electric wire is unbonded. Cheap.

また、特許文献１に示されるワイヤハーネスにおいて、仮に、枝線が、接合部における枝線の分岐方向に対して反対の方向へ折り返して配線された場合、枝線に加わる引っ張り力の大部分は、絶縁テープが巻かれた部分の端部に作用する。そのため、電線の接合部に加わる力は緩和される。しかしながら、枝線が、絶縁テープが巻かれた部分の端部で鋭角に折れ曲がるため、枝線の破損が生じやすい。 Moreover, in the wire harness shown in Patent Document 1, if the branch line is folded and wired in a direction opposite to the branch direction of the branch line at the joint, most of the tensile force applied to the branch line is It acts on the end of the portion where the insulating tape is wound. Therefore, the force applied to the joint portion of the electric wire is relaxed. However, since the branch line is bent at an acute angle at the end of the portion where the insulating tape is wound, the branch line is easily damaged.

本発明は、電線の中間部に存在する枝線との接合部を絶縁体で保護でき、さらに、枝線に加わる引っ張り力により電線の接合が外れる不都合を回避できることを目的とする。 An object of this invention is to be able to protect the junction part with the branch line which exists in the intermediate part of an electric wire with an insulator, and to avoid the problem that the joining of an electric wire remove | deviates by the tensile force added to a branch line.

本発明に係る電線保護具は、第１の電線及び第１の電線の中間部に接合された第２の電線を備えたワイヤハーネスに取り付けられ、第１の電線及び第２の電線の接合部を保護する用具である。そして、本発明に係る電線保護具は、第１の電線及び第２の電線の接合部を挟み込んで組み合わされる２つの絶縁部材からなる。さらに、本発明に係る電線保護具には、第２の電線が引っ掛けられ第２の電線を外縁に沿って折り返された状態で支持する支持部が形成されている。 An electric wire protector according to the present invention is attached to a wire harness including a first electric wire and a second electric wire joined to an intermediate portion of the first electric wire, and a joint portion between the first electric wire and the second electric wire. It is a tool to protect. And the electric wire protector which concerns on this invention consists of two insulation members put together by inserting | pinching the junction part of a 1st electric wire and a 2nd electric wire. Furthermore, the electric wire protector according to the present invention has a support portion that supports the second electric wire in a state where the second electric wire is hooked and folded along the outer edge.

また、本発明に係る電線保護具において、支持部における第２の電線が沿う外縁が、全ての角が鈍角である多角形の各角部を形成することが望ましい。そのような支持部は、例えば、全ての角が鈍角である多角形の各角部を形成する複数の単位支持部からなる。 Moreover, in the wire protector according to the present invention, it is desirable that the outer edge along which the second wire in the support portion is formed forms each corner of the polygon in which all corners are obtuse. Such a support part consists of a several unit support part which forms each corner | angular part of a polygon whose all the angles are obtuse angles, for example.

また、本発明に係る電線保護具において、２つの絶縁部材を組み合わされた状態で保持するロック部がさらに形成されていることが望ましい。 Moreover, in the electric wire protector which concerns on this invention, it is desirable to further form the lock part which hold | maintains the state which combined two insulating members.

また、本発明に係る電線保護具において、支持部の端から外側への第２の電線の位置ずれを制限する第１の規制部がさらに形成されていることが望ましい。この第１の規制部は、支持部の両端部から第２の電線が配設される領域の両側を遮って張り出して形成される。 Moreover, in the wire protector according to the present invention, it is desirable that a first restricting portion for restricting the displacement of the second wire from the end of the support portion to the outside is further formed. The first restricting portion is formed so as to protrude from both ends of the support portion while blocking both sides of the region where the second electric wire is disposed.

また、本発明に係る電線保護具において、支持部における第２の電線が沿う面から離れる方向への第２の電線の位置ずれを制限する第２の規制部がさらに形成されていることが考えられる。この第２の規制部は、支持部に対して第２の電線が配設される領域を挟んで対向する可撓性を有する部分である。 Moreover, in the electric wire protector which concerns on this invention, it is thought that the 2nd control part which restrict | limits the position shift of the 2nd electric wire to the direction away from the surface where the 2nd electric wire in a support part follows is further formed. It is done. This 2nd control part is a part which has the flexibility which opposes on both sides of the area | region where a 2nd electric wire is arrange | positioned with respect to a support part.

また、本発明に係る電線保護具を構成する２つの絶縁部材は、同じ形状で形成されていることが望ましい。 Moreover, it is desirable that the two insulating members constituting the wire protector according to the present invention are formed in the same shape.

また、本発明は、以上に示した第１の電線及び第２の電線と、それらの電線に取り付けられた本発明に係る電線保護具とを備えるワイヤハーネスの発明として捉えられても良い。 Moreover, this invention may be caught as invention of a wire harness provided with the 1st electric wire and 2nd electric wire which were shown above, and the electric wire protector which concerns on these electric wires attached to those electric wires.

本発明において、第１の電線は幹線を構成し、第２の電線は枝線を構成する。本発明において、枝線は、支持部の外縁に沿って、接合部における幹線からの分岐方向に対して少なくとも１回以上折り返される。そのため、枝線に加わる引っ張り力の大部分は、支持部に作用し、接合部に加わる力は大幅に緩和される。従って、細い電線が、幹線及び枝線として採用された場合でも、電線の接合が外れにくい。 In the present invention, the first electric wire constitutes a trunk line, and the second electric wire constitutes a branch line. In the present invention, the branch line is folded back at least once along the outer edge of the support portion with respect to the branch direction from the trunk line at the joint portion. Therefore, most of the pulling force applied to the branch line acts on the support portion, and the force applied to the joint portion is greatly reduced. Therefore, even when a thin electric wire is adopted as a main line and a branch line, the electric wire is hardly detached.

また、本発明において、枝線は、支持部の外縁に沿って折り返される。そのため、支持部の外縁の形状が比較的曲率の小さな形状であれば、枝線が支持部に沿う部分で鋭角に折れ曲がって破損することは防止される。 Moreover, in this invention, a branch line is return | folded along the outer edge of a support part. Therefore, if the shape of the outer edge of the support portion is a shape having a relatively small curvature, the branch line is prevented from being bent at an acute angle along the support portion and being damaged.

しかも、当該電線保護具を構成する２つの絶縁部材は、幹線の中間部に存在する枝線との接合部を、その両側から挟み込むことによって保護する。即ち、本発明に係る電線保護具は、電線の接合部を電気的に絶縁して保護する保護機能と、枝線に加わる引っ張り力に応じて電線の接合部に加わる力を緩和する外力緩和機能とを備える。従って、本発明に係る電線保護具が採用された場合、保護機能を実現する部材と外力緩和機能を実現する部材とを個別に取り付ける必要がなく、ワイヤハーネス作製の工程を簡素化できる。 And the two insulation members which comprise the said wire protector protect by pinching the junction part with the branch wire which exists in the intermediate part of the trunk line from the both sides. That is, the wire protector according to the present invention has a protection function for electrically insulating and protecting the joint portion of the electric wire, and an external force relaxation function for relaxing the force applied to the joint portion of the electric wire according to the tensile force applied to the branch line. With. Therefore, when the wire protector according to the present invention is employed, it is not necessary to separately attach a member that realizes a protective function and a member that realizes an external force mitigating function, and the wire harness manufacturing process can be simplified.

ところで、本発明において、枝線が支持部に対して滑りやすいと、接合部に加わる力を緩和する効果が低減する。そのため、本発明において、支持部における枝線が沿う外縁が、全ての角が鈍角である多角形の各角部を形成していれば好適である。この場合、枝線は、支持部に沿う部分において、曲げ部と直線部とが順次連続する状態で折り返される。そのため、枝線の曲げ部における支持部に対する摩擦抵抗が大きくなり、枝線は、支持部に対して滑りにくい。その結果、接合部に加わる力が、より確実に緩和される。 By the way, in this invention, if a branch line is slippery with respect to a support part, the effect which relieve | moderates the force added to a junction part will reduce. Therefore, in this invention, it is suitable if the outer edge along which the branch line in a support part follows forms each corner | angular part of the polygon whose all the angles are obtuse. In this case, the branch line is folded at a portion along the support portion in a state where the bent portion and the straight portion are successively continued. Therefore, the friction resistance with respect to the support part in the bending part of a branch line becomes large, and a branch line is hard to slip with respect to a support part. As a result, the force applied to the joint portion is more reliably mitigated.

また、本発明において、支持部が、全ての角が鈍角である多角形の各角部を形成する複数の単位支持部で構成されていればなお好適である。この場合、接合部に加わる力がより確実に緩和されるとともに、電線保護具の軽量化の効果も得られる。 In the present invention, it is further preferable that the support portion is composed of a plurality of unit support portions that form polygonal corner portions in which all the angles are obtuse. In this case, the force applied to the joint can be more reliably alleviated and the effect of reducing the weight of the wire protector can be obtained.

また、本発明に係る電線保護具が、ロック部をさらに備えていれば、電線保護具を電線に取り付ける作業が簡素化される。即ち、２つの絶縁部材を組み合わされた状態で固定するために、粘着テープを巻き付ける又は溶着するなどの煩雑な作業が不要となる。 Moreover, if the electric wire protector which concerns on this invention is further provided with the lock | rock part, the operation | work which attaches an electric wire protector to an electric wire will be simplified. That is, in order to fix the two insulating members in a combined state, a complicated operation such as winding or welding the adhesive tape becomes unnecessary.

また、電線保護具に第１の規制部が形成されていれば、枝線が、支持部に沿って位置づれし、支持部の端からその外側へ外れることを防止できる。また、電線保護具に第２の規制部が形成されていれば、枝線の張力が緩んだときに、枝線が支持部から外れることを防止できる。 Moreover, if the 1st control part is formed in the wire protector, it can prevent that a branch line is located along a support part and remove | deviates from the end of a support part to the outer side. Moreover, if the 2nd control part is formed in the electric wire protector, when the tension | tensile_strength of a branch line loosens, it can prevent that a branch line remove | deviates from a support part.

当該電線保護具を構成する２つの絶縁部材が同じ形状で形成されていれば、部材の種類が少なくなり、電線保護具の製造工程及び電線保護具を電線に取り付ける工程が簡素化される。 If the two insulating members constituting the wire protector are formed in the same shape, the types of members are reduced, and the manufacturing process of the wire protector and the process of attaching the wire protector to the electric wire are simplified.

本発明の第１実施形態に係るワイヤハーネス１の３面図である。It is a 3rd page figure of the wire harness 1 which concerns on 1st Embodiment of this invention. ワイヤハーネス１の縦断面図である。1 is a longitudinal sectional view of a wire harness 1. FIG. ワイヤハーネス１の横断面図である。1 is a cross sectional view of a wire harness 1. FIG. 本発明の第１実施形態に係る電線保護具１０の３面図である。It is a 3rd page figure of the electric wire protector 10 which concerns on 1st Embodiment of this invention. 電線保護具１０を構成する分割部材の３面図である。FIG. 3 is a three-side view of a split member that constitutes the wire protector 10. 本発明の第２実施形態に係る電線保護具１０Ａを構成する分割部材の３面図である。It is a 3rd page figure of the division member which constitutes electric wire protector 10A concerning a 2nd embodiment of the present invention. 本発明の第３実施形態に係るワイヤハーネス１Ｂの縦断面図である。It is a longitudinal cross-sectional view of the wire harness 1B which concerns on 3rd Embodiment of this invention.

以下、添付の図面を参照しながら、本発明の実施形態について説明する。以下の実施形態は、本発明を具体化した一例であり、本発明の技術的範囲を限定する事例ではない。 Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. The following embodiment is an example embodying the present invention, and is not an example of limiting the technical scope of the present invention.

＜第１実施形態＞
まず、図１から図５を参照しつつ、本発明の第１実施形態に係るワイヤハーネス１及び電線保護具１０の構成について説明する。図１に示されるように、ワイヤハーネス１は、幹線を形成する第１の電線９１と、枝線を形成する第２の電線９２と、圧着部材８と、電線保護具１０とを備えている。電線保護具１０は、相互に組み合わされた２つの分割部材１００で構成されている。 <First Embodiment>
First, the configuration of the wire harness 1 and the wire protector 10 according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 5. As shown in FIG. 1, the wire harness 1 includes a first electric wire 91 that forms a trunk line, a second electric wire 92 that forms a branch line, a crimping member 8, and an electric wire protector 10. . The wire protector 10 is composed of two divided members 100 combined with each other.

図１（ａ）はワイヤハーネス１の正面図、図１（ｂ）はワイヤハーネス１の側面図、図１（ｃ）はワイヤハーネス１の平面図である。図１、図４及び図５において、電線保護具１０の隠れ線は、破線で描かれている。また、便宜上、図１において、第１の電線９１、第２の電線９２及び圧着部材８は二点鎖線で描かれている。さらに、図１（ａ）において、第１の電線９１、第２の電線９２及び圧着部材８を表す線は、隠れ線も含めて二点鎖線で描かれている。また、図２は、図１に示されるＤ−Ｄ平面の断面図（縦断面図）であり、図３は、図１に示されるＥ−Ｅ平面の断面図（横断面図）である。 1A is a front view of the wire harness 1, FIG. 1B is a side view of the wire harness 1, and FIG. 1C is a plan view of the wire harness 1. In FIG.1, FIG4 and FIG.5, the hidden line of the wire protector 10 is drawn with the broken line. Further, for convenience, in FIG. 1, the first electric wire 91, the second electric wire 92, and the crimping member 8 are drawn by a two-dot chain line. Furthermore, in FIG. 1A, the lines representing the first electric wire 91, the second electric wire 92, and the crimping member 8 are drawn with two-dot chain lines including the hidden lines. 2 is a sectional view (longitudinal sectional view) of the DD plane shown in FIG. 1, and FIG. 3 is a sectional view (transverse sectional view) of the EE plane shown in FIG.

＜電線及び圧着部材＞
第１の電線９１及び第２の電線９２は、銅又はアルミニウムを主成分とする導体からなる芯線と、その芯線の周囲を覆う絶縁被覆と、により構成された絶縁電線である。第１の電線９１は、その中間部の一部において絶縁被覆が剥がれており、第２の電線９２は、その端部において絶縁被覆が剥がれている。 <Wire and crimping member>
The 1st electric wire 91 and the 2nd electric wire 92 are insulated wires comprised by the core wire which consists of a conductor which has copper or aluminum as a main component, and the insulation coating which covers the circumference | surroundings of the core wire. As for the 1st electric wire 91, the insulation coating is peeled off in a part of the middle part, and the insulation coating is peeled off at the end part of the 2nd electric wire 92.

そして、第２の電線９２の端部の芯線は、第１の電線９１の中間部の芯線に対して圧着部材８により接合されている。図２及び図３に示されるように、圧着部材８は、第１の電線９１の中間部の芯線と第２の電線９２の端部の芯線とを束ねる状態で両芯線に対してかしめられている。これにより、第２の電線９２の端部は、第１の電線９１の中間部に対して接合され、第２の電線９２は、幹線を形成する第１の電線９１の中間部から枝分かれした枝線を形成する。以下、第１の電線９１及び第２の電線９２における圧着部材８で接合された部分及びその圧着部材８のことを接合部８０と称する。 The core wire at the end of the second electric wire 92 is joined to the core wire at the intermediate portion of the first electric wire 91 by the crimping member 8. As shown in FIGS. 2 and 3, the crimping member 8 is caulked against both core wires in a state where the core wire of the intermediate portion of the first electric wire 91 and the core wire of the end portion of the second electric wire 92 are bundled. Yes. Thereby, the edge part of the 2nd electric wire 92 is joined with respect to the intermediate part of the 1st electric wire 91, and the 2nd electric wire 92 branches from the intermediate part of the 1st electric wire 91 which forms a trunk line. Form a line. Hereinafter, the part joined by the crimping member 8 in the first electric wire 91 and the second electric wire 92 and the crimping member 8 will be referred to as a joining part 80.

＜電線保護具＞
電線保護具１０は、接合された第１の電線９１及び第２の電線９２における接合部８０に取り付けられ、接合部８０を保護する用具である。電線保護具１０は、第１の電線９１及び第２の電線９２における接合部８０をその両側から挟み込んで組み合わされる２つの分割部材１００からなる。 <Wire protector>
The wire protector 10 is a tool that is attached to the joined portion 80 of the joined first electric wire 91 and second electric wire 92 and protects the joined portion 80. The wire protector 10 includes two divided members 100 that are combined by sandwiching the joint 80 between the first electric wire 91 and the second electric wire 92 from both sides thereof.

２つの分割部材１００は、例えば、ポリアミド（ＰＡ）、ポリプロピレン（ＰＰ）、ポリブチレンテレフタレート（ＰＢＴ）又はＡＢＳ樹脂などの絶縁性の樹脂からなる一体成形部材である。本実施形態では、電線保護具１０を構成する２つの分割部材１００は同じ形状で形成されている。 The two divided members 100 are integrally formed members made of an insulating resin such as polyamide (PA), polypropylene (PP), polybutylene terephthalate (PBT), or ABS resin. In the present embodiment, the two divided members 100 constituting the wire protector 10 are formed in the same shape.

図１から図５に示されるように、電線保護具１０は、２つの電線挟持部２０と、それらを連結する連結部３０とにより構成されている。また、電線挟持部２０には、支持部１１と、鍔部１２と、起立部１３と、ロック用突起部１４と、ロック用孔１５と、位置決め用突起部１６と、位置決め用穴１７とが形成されている。 As shown in FIGS. 1 to 5, the wire protector 10 includes two wire holding portions 20 and a connecting portion 30 that connects them. Further, the electric wire holding portion 20 includes a support portion 11, a flange portion 12, an upright portion 13, a locking projection portion 14, a locking hole 15, a positioning projection portion 16, and a positioning hole 17. Is formed.

＜電線保護具：支持部＞
支持部１１は、第２の電線９２が引っ掛けられ、その第２の電線９２を支持する部分であるとともに、接合部８０を収容する部分でもある。支持部１１は、２つの分割部材１００各々に２分割されて形成された２つの部分が組み合わされた構造を有している。図５に示される支持部１１は、組み合わされる２つの部分のうちの一方である。 <Wire protector: Support part>
The support portion 11 is a portion that is hooked by the second electric wire 92 and supports the second electric wire 92, and also a portion that accommodates the joint portion 80. The support part 11 has a structure in which two parts formed by being divided into two parts are respectively combined. The support part 11 shown in FIG. 5 is one of the two parts to be combined.

図２に示されるように、支持部１１は、第２の電線９２が引っ掛けられることにより、第２の電線９２を外縁に沿って折り返された状態で支持する。本実施形態においては、支持部１１における前記第２の電線９２が沿う外縁は、正八角形の角部を形成している。そのため、第２の電線９２における支持部１１に支持された部分は、正八角形の各辺に沿う状態で折れ曲がる。なお、正八角形は、全ての角が鈍角である多角形の一例である。 As shown in FIG. 2, the support unit 11 supports the second electric wire 92 in a state of being folded along the outer edge by the second electric wire 92 being hooked. In the present embodiment, the outer edge along the second electric wire 92 in the support portion 11 forms a regular octagonal corner. Therefore, the part supported by the support part 11 in the second electric wire 92 bends in a state along each side of the regular octagon. A regular octagon is an example of a polygon in which all the angles are obtuse.

また、支持部１１は、第１の電線９１の通路となる貫通孔１１１が形成されており、その貫通孔１１１の一部が、接合部８０を収容する収容部１１２となっている。収容部１１２は、接合部８０が嵌り込む形状で形成されている。収容部１１２の一部は、接合部８０の角部、即ち、圧着部材８の角部に引っ掛かることにより、接合部８０が収容部１１２から抜け出る方向への動くことを妨げる。 In addition, the support portion 11 is formed with a through hole 111 serving as a passage for the first electric wire 91, and a part of the through hole 111 serves as a housing portion 112 that houses the joint portion 80. The accommodating part 112 is formed in the shape in which the junction part 80 fits. A part of the housing portion 112 is caught by the corner portion of the joint portion 80, that is, the corner portion of the crimping member 8, thereby preventing the joint portion 80 from moving in the direction of coming out of the housing portion 112.

また、電線保護具１０は、間隔を空けて配置された２つの支持部１１を備える。そのため、電線保護具１０は、図２に示されるように、第２の電線９２を、一方の支持部１１で一回折り返した後、他方の支持部１１で再度折り返した状態で支持することができる。そのため、第２の電線９２を、接合部８０における分岐方向と同じ方向へ分岐させることができる。もちろん、電線保護具１０は、一方の支持部１１のみを用いることにより、第２の電線９２を、接合部８０における分岐方向に対して反対の方向へ分岐させることもできる。 Moreover, the wire protector 10 is provided with the two support parts 11 arrange | positioned at intervals. Therefore, as shown in FIG. 2, the wire protector 10 can support the second electric wire 92 in a state where the second electric wire 92 is folded once by the one support portion 11 and then folded back by the other support portion 11. it can. Therefore, the second electric wire 92 can be branched in the same direction as the branch direction in the joint 80. Of course, the wire protector 10 can also branch the second electric wire 92 in a direction opposite to the branching direction in the joint 80 by using only one support portion 11.

＜電線保護具：鍔部＞
鍔部１２は、支持部１１の端から外側への第２の電線９２の位置ずれを制限する部分である。鍔部１２は、その機能を果たすため、支持部１１の両端部から第２の電線９２が配設される領域１１３の両側を遮って張り出して形成されている。本実施の形態では、鍔部１２は、支持部１１の周囲の全方向に亘って張り出したフランジ状に形成されている。しかしながら、鍔部１２は、支持部１１の周囲の全方向における一部の方向にのみ張り出した形状で形成されてもよい。 <Wire protector: buttock>
The collar portion 12 is a portion that restricts the displacement of the second electric wire 92 from the end of the support portion 11 to the outside. In order to fulfill the function, the flange 12 is formed so as to protrude from both ends of the support 11 while blocking both sides of the region 113 in which the second electric wire 92 is disposed. In the present embodiment, the flange portion 12 is formed in a flange shape that protrudes in all directions around the support portion 11. However, the flange portion 12 may be formed in a shape that protrudes only in a part of all directions around the support portion 11.

また、本実施の形態において、２つの電線挟持部２０を繋ぐ連結部３０は、２つの電線挟持部２０各々の鍔部１２に連なって形成されている。 Moreover, in this Embodiment, the connection part 30 which connects the two electric wire clamping parts 20 is formed in a row from the collar part 12 of each of the two electric wire clamping parts 20.

＜電線保護具：起立部＞
起立部１３は、鍔部１２の内側の面に起立して形成され、支持部１１に対して第２の電線９２が配設される領域１１３を挟んで対向する可撓性を有する部分である。この起立部１３は、支持部１１における第２の電線９２が沿う面から離れる方向への第２の電線９２の位置ずれを制限する。即ち、起立部１３は、第２の電線９２の張力が緩んだときに第２の電線９２が支持部１１から浮き上がることを防止する。 <Wire protector: Standing part>
The standing portion 13 is a portion that is formed to stand on the inner surface of the flange portion 12 and has a flexibility that faces the support portion 11 with a region 113 in which the second electric wire 92 is disposed therebetween. . The upright portion 13 restricts the positional deviation of the second electric wire 92 in the direction away from the surface along which the second electric wire 92 extends in the support portion 11. That is, the upright portion 13 prevents the second electric wire 92 from floating from the support portion 11 when the tension of the second electric wire 92 is loosened.

また、起立部１３は、板状に形成されているため、第２の電線９２が外側から内側の領域１１３へ押し入れられると撓む。起立部１３が一時的に撓むことにより、起立部１３の外側から内側への第２の電線９２の挿入経路が形成される。 Moreover, since the standing part 13 is formed in plate shape, it will bend if the 2nd electric wire 92 is pushed in into the area | region 113 inside from the outer side. When the standing portion 13 is temporarily bent, an insertion path of the second electric wire 92 from the outside to the inside of the standing portion 13 is formed.

＜電線保護具：ロック機構及び位置決め機構＞
図５に示されるように、分割部材１００には、２つの電線挟持部２０各々の半分を構成する第１分割挟持部２０１と第２分割挟持部２０２とが形成されている。第１分割挟持部２０１と第２分割挟持部２０２とは、一部の形状が異なる。第１分割挟持部２０１には、ロック用突起部１４と位置決め用突起部１６とが形成されている。一方、第２分割挟持部２０２には、ロック用孔１５と位置決め用穴１７とが形成されている。ロック用孔１５は貫通孔である。一方、位置決め用穴１７は窪み状の穴である。なお、第１分割挟持部２０１と第２分割挟持部２０２とにおいて、その他の構成要素は同じである。 <Wire protector: Lock mechanism and positioning mechanism>
As shown in FIG. 5, the divided member 100 is formed with a first divided holding portion 201 and a second divided holding portion 202 that constitute half of each of the two electric wire holding portions 20. The first divided clamping unit 201 and the second divided clamping unit 202 are partially different in shape. The first split clamping unit 201 is formed with a locking projection 14 and a positioning projection 16. On the other hand, the second split clamping unit 202 is formed with a locking hole 15 and a positioning hole 17. The locking hole 15 is a through hole. On the other hand, the positioning hole 17 is a hollow hole. The other components of the first divided clamping unit 201 and the second divided clamping unit 202 are the same.

２つの分割部材１００が正しい向き及び位置関係で相互に押し付けられると、一方の分割部材１００の位置決め用突起部１６が、他方の分割部材１００の位置決め用穴１７に嵌り込む。これにより、２つの分割部材１００は、相互に離間する方向以外の方向における相対的な位置が固定される。即ち、位置決め用突起部１６及び位置決め用穴１７は、２つの分割部材１００の相対的な位置を固定する位置決め機構を構成する。 When the two divided members 100 are pressed against each other in the correct orientation and positional relationship, the positioning projections 16 of one divided member 100 are fitted into the positioning holes 17 of the other divided member 100. Thereby, the relative position in directions other than the direction which mutually separates the two division | segmentation members 100 is fixed. That is, the positioning projection 16 and the positioning hole 17 constitute a positioning mechanism that fixes the relative positions of the two divided members 100.

また、２つの分割部材１００が、正しい向き及び位置関係で相互に押し付けられると、一方の分割部材１００のロック用突起部１４が、他方の分割部材１００のロック用孔１５を貫通する。さらに、ロック用突起部１４の先端において側方に張り出して形成された爪部１４１が、電線挟持部２０の外側の面におけるロック用孔１５の縁部に引っ掛かる。これにより、２つの分割部材１００は、組み合わされた状態で保持される。即ち、ロック用突起部１４及びロック用孔１５は、２つの分割部材１００を組み合わされた状態で保持するロック機構を構成する。 When the two divided members 100 are pressed against each other in the correct orientation and positional relationship, the locking projection 14 of one divided member 100 penetrates the locking hole 15 of the other divided member 100. Further, the claw portion 141 formed to protrude laterally at the tip of the locking projection portion 14 is caught by the edge portion of the locking hole 15 on the outer surface of the wire holding portion 20. Thus, the two divided members 100 are held in a combined state. That is, the locking projection 14 and the locking hole 15 constitute a locking mechanism that holds the two divided members 100 in a combined state.

また、位置決め機構において、位置決め用突起部１６と位置決め用穴１７との間にあそびは設けられていない。そのため、位置決め機構は、２つの分割部材１００をガタ無く位置決めする。そのため、ロック機構に多少のあそびが設けられていても、組み合わされた２つの分割部材１００がガタつくことがない。 In the positioning mechanism, no play is provided between the positioning projection 16 and the positioning hole 17. Therefore, the positioning mechanism positions the two divided members 100 without backlash. Therefore, even if some play is provided in the lock mechanism, the combined two divided members 100 do not rattle.

＜効果＞
ワイヤハーネス１において、第１の電線９１は幹線を構成し、第２の電線９２は枝線を構成する。第２の電線９２は、支持部１１の外縁に沿って、接合部８０における第１の電線９１からの分岐方向に対して少なくとも１回以上折り返される。 <Effect>
In the wire harness 1, the first electric wire 91 constitutes a trunk line, and the second electric wire 92 constitutes a branch line. The second electric wire 92 is folded at least once along the outer edge of the support portion 11 with respect to the branching direction from the first electric wire 91 at the joint portion 80.

そのため、第１の電線９１に加わる引っ張り力の大部分は、支持部１１に作用し、接合部８０に加わる力は大幅に緩和される。従って、細い電線が、第１の電線９１及び第２の電線９２として採用された場合でも、接合部８０の接合が外れにくい。 Therefore, most of the tensile force applied to the first electric wire 91 acts on the support portion 11, and the force applied to the joint portion 80 is greatly relieved. Therefore, even when thin electric wires are employed as the first electric wires 91 and the second electric wires 92, the joining of the joining portion 80 is difficult to come off.

また、第２の電線９２線は、支持部１１の外縁に沿って折り返される。そのため、支持部１１の外縁の形状が比較的曲率の小さな形状であれば、第２の電線９２が支持部１１に沿う部分で鋭角に折れ曲がって破損することは防止される。 In addition, the second electric wire 92 line is folded back along the outer edge of the support portion 11. Therefore, if the shape of the outer edge of the support portion 11 is a shape having a relatively small curvature, the second electric wire 92 is prevented from being bent at an acute angle at the portion along the support portion 11 and being damaged.

しかも、電線保護具１０を構成する２つの分割部材１００は、第１の電線９１の中間部に存在する第２の電線９２との接合部８０を、その両側から挟み込むことによって保護する。 Moreover, the two divided members 100 constituting the wire protector 10 protect the joint 80 with the second electric wire 92 existing in the intermediate portion of the first electric wire 91 by sandwiching it from both sides.

即ち、電線保護具１０は、接合部８０を電気的に絶縁して保護する保護機能と、第２の電線９２に加わる引っ張り力に応じて接合部８０に加わる力を緩和する外力緩和機能とを備える。従って、電線保護具１０が採用された場合、保護機能を実現する部材と外力緩和機能を実現する部材とを個別に取り付ける必要がなく、ワイヤハーネス１作製の工程を簡素化できる。 That is, the wire protector 10 has a protection function for electrically insulating and protecting the joint 80 and an external force relaxation function for relaxing the force applied to the joint 80 in accordance with the tensile force applied to the second electric wire 92. Prepare. Therefore, when the wire protector 10 is employed, it is not necessary to separately attach a member that realizes the protection function and a member that realizes the external force relaxation function, and the process of manufacturing the wire harness 1 can be simplified.

ところで、ワイヤハーネス１において、第２の電線９２が支持部１１に対して滑りやすいと、接合部８０に加わる力を緩和する効果が低減する。そのため、電線保護具１０においては、支持部１１における第２の電線９２が沿う外縁が、全ての角が鈍角である多角形の各角部を形成している。そのため、第２の電線９２は、支持部１１に沿う部分において、曲げ部と直線部とが順次連続する状態で折り返される。そのため、第２の電線９２の曲げ部における支持部１１に対する摩擦抵抗が大きくなり、第２の電線９２は、支持部１１に対して滑りにくい。その結果、接合部８０に加わる力が、より確実に緩和される。 By the way, in the wire harness 1, when the 2nd electric wire 92 is slippery with respect to the support part 11, the effect which relieve | moderates the force added to the junction part 80 will reduce. Therefore, in the wire protector 10, the outer edge along which the 2nd electric wire 92 in the support part 11 follows forms each corner | angular part of the polygon whose all the angles are obtuse angles. Therefore, the second electric wire 92 is folded at a portion along the support portion 11 in a state in which the bent portion and the linear portion are successively continued. Therefore, the friction resistance with respect to the support part 11 in the bending part of the 2nd electric wire 92 becomes large, and the 2nd electric wire 92 is hard to slip with respect to the support part 11. FIG. As a result, the force applied to the joint 80 is more reliably mitigated.

また、電線保護具１０は、ロック用突起部１４及びロック用孔１５からなるロック機構を備えている。そのため、電線保護具１０を電線に取り付ける作業が簡素化される。即ち、２つの分割部材１００を組み合わされた状態で固定するために、粘着テープを巻き付ける又は溶着するなどの煩雑な作業が不要となる。 Further, the wire protector 10 includes a lock mechanism including a lock protrusion 14 and a lock hole 15. Therefore, the operation | work which attaches the electric wire protector 10 to an electric wire is simplified. That is, in order to fix the two divided members 100 in a combined state, a complicated operation such as winding or welding the adhesive tape becomes unnecessary.

また、電線保護具１０において、鍔部１２が形成されているため、第２の電線９２が、支持部１１に沿って位置づれして支持部１１の端からその外側へ外れることを防止できる。さらに、電線保護具１０に起立部１３が形成されているため、第２の電線９２の張力が緩んだときに、第２の電線９２が支持部１１から外れることを防止できる。 Moreover, since the collar part 12 is formed in the wire protector 10, it can prevent that the 2nd electric wire 92 is located along the support part 11, and remove | deviates from the end of the support part 11 to the outer side. Furthermore, since the standing portion 13 is formed in the wire protector 10, it is possible to prevent the second wire 92 from being detached from the support portion 11 when the tension of the second wire 92 is loosened.

また、電線保護具１０を構成する２つの分割部材１００が同じ形状で形成されているため、部材の種類が少なくなり、電線保護具１０の製造工程及び電線保護具１０を電線に取り付ける工程が簡素化される。 Moreover, since the two division members 100 which comprise the wire protector 10 are formed in the same shape, the kind of member decreases, and the manufacturing process of the wire protector 10 and the process of attaching the wire protector 10 to an electric wire are simple. It becomes.

＜第２実施形態＞
次に、図６を参照しつつ、本発明の第２実施形態に係る電線保護具１０Ａについて説明する。電線保護具１０Ａは、図１から図５に示された電線保護具１０と比較して、第２の電線９２を支持する支持部の構成のみが異なる。図６において、図１から図５に示される構成要素と同じ構成要素は、同じ参照符号が付されている。以下、電線保護具１０Ａにおける電線保護具１０と異なる点についてのみ説明する。 Second Embodiment
Next, an electric wire protector 10A according to a second embodiment of the present invention will be described with reference to FIG. The wire protector 10 A differs from the wire protector 10 shown in FIGS. 1 to 5 only in the configuration of the support portion that supports the second wire 92. In FIG. 6, the same components as those shown in FIGS. 1 to 5 are given the same reference numerals. Hereinafter, only the differences from the wire protector 10 in the wire protector 10A will be described.

図６は、電線保護具１０Ａを構成する分割部材１００Ａの３面図である。電線保護具１０Ａを構成する２つの分割部材１００Ａも、電線保護具１０を構成する２つの分割部材１００と同様に、同じ形状で形成されている。 FIG. 6 is a three-side view of the dividing member 100A that constitutes the wire protector 10A. The two divided members 100 A constituting the wire protector 10 A are also formed in the same shape as the two divided members 100 constituting the wire protector 10.

また、図６に示されるように、電線保護具１０Ａの支持部１１Ａも、電線保護具１０の支持部１１と同様に、第２の電線９２が引っ掛けられることにより、第２の電線９２を外縁に沿って折り返された状態で支持する。さらに、支持部１１における前記第２の電線９２が沿う外縁は、正八角形の角部を形成している。 As shown in FIG. 6, the support portion 11 A of the wire protector 10 A is also connected to the outer edge of the second wire 92 by being hooked by the second wire 92, similarly to the support portion 11 of the wire protector 10. It supports in the state folded along. Furthermore, the outer edge along which the second electric wire 92 in the support portion 11 is formed forms a regular octagonal corner.

しかしながら、電線保護具１０Ａの支持部１１Ａは、正八角形の角部を形成する８つの単位支持部１１０Ａ，１１０Ｂで構成されている。図６に示される例では、支持部１１Ａは、４つの第１の単位支持部材１１０Ａと、４つの第２の単位支持部材１１０Ｂとで構成されている。４つの第１の単位支持部材１１０Ａは、電線保護具１０の支持部１１と同様に、その内側に接合部８０を収容する収容部１１２を形成している。 However, the support portion 11A of the wire protector 10A is composed of eight unit support portions 110A and 110B that form regular octagonal corner portions. In the example illustrated in FIG. 6, the support portion 11 A includes four first unit support members 110 A and four second unit support members 110 B. The four first unit support members 110 A form an accommodation portion 112 that accommodates the joint portion 80 inside thereof, similarly to the support portion 11 of the wire protector 10.

一方、４つの第２の単位支持部材１１０Ｂは、引っ掛けられた第２の電線９２を支持する機能のみを果たす。 On the other hand, the four second unit support members 110B perform only the function of supporting the hooked second electric wires 92.

＜効果＞
図６に示される電線保護具１０Ａが採用されることにより、電線保護具１０が採用される場合と同じ効果が得られ、さらに、電線保護具１０Ａの軽量化の効果も得られる。 <Effect>
By adopting the wire protector 10A shown in FIG. 6, the same effect as when the wire protector 10 is employed is obtained, and further, the effect of reducing the weight of the wire protector 10A is also obtained.

＜第３実施形態＞
次に、図７を参照しつつ、本発明の第３実施形態に係るワイヤハーネス１Ｂについて説明する。ワイヤハーネス１Ｂは、本発明の第３実施形態に係る電線保護具１０Ｂを備える。電線保護具１０Ｂは、図１から図５に示された電線保護具１０と比較して、第２の電線９２を支持する部分の数のみが異なる。図７において、図１から図５に示される構成要素と同じ構成要素は、同じ参照符号が付されている。以下、電線保護具１０Ｂにおける電線保護具１０と異なる点についてのみ説明する。 <Third Embodiment>
Next, a wire harness 1B according to a third embodiment of the present invention will be described with reference to FIG. The wire harness 1B includes an electric wire protector 10B according to the third embodiment of the present invention. The wire protector 10B differs from the wire protector 10 shown in FIGS. 1 to 5 only in the number of portions that support the second wire 92. In FIG. 7, the same components as those shown in FIGS. 1 to 5 are given the same reference numerals. Hereinafter, only the differences from the wire protector 10 in the wire protector 10B will be described.

図７は、ワイヤハーネス１Ｂの縦断面図であり、その断面は、図２に示されるワイヤハーネス１の断面図が示すＤ−Ｄ断面に相当する。 FIG. 7 is a vertical cross-sectional view of the wire harness 1B, and the cross-section corresponds to a DD cross section shown in the cross-sectional view of the wire harness 1 shown in FIG.

図７に示されるように、電線保護具１０Ｂは、第１の電線挟持部２０Ｂと第２の電線挟持部２０とそれらを連結する連結部３０とを有する。第２の電線挟持部２０及び連結部３０は、電線保護具１０の電線挟持部２０及び連結部３０と同じである。 As FIG. 7 shows, the electric wire protector 10B has the 1st electric wire clamping part 20B, the 2nd electric wire clamping part 20, and the connection part 30 which connects them. The second electric wire holding part 20 and the connecting part 30 are the same as the electric wire holding part 20 and the connecting part 30 of the electric wire protector 10.

一方、電線保護具１０Ｂにおける第１の電線挟持部２０Ｂは、電線保護具１０における一方の電線挟持部２０から、鍔部１２及び起立部１３が除かれた構造を有している。即ち、第１の電線挟持部２０Ｂに形成された支持部１１Ｂは、その内側に接合部８０を収容する収容部１２が形成されているが、外縁に沿って第２の電線９２を支持する機能は備えていない。 On the other hand, the 1st electric wire clamping part 20B in the electric wire protector 10B has the structure where the collar part 12 and the standing part 13 were remove | excluded from the one electric wire clamping part 20 in the electric wire protector 10. FIG. That is, the support part 11B formed in the first electric wire holding part 20B has the accommodating part 12 that accommodates the joint part 80 inside thereof, and the function of supporting the second electric wire 92 along the outer edge. Is not prepared.

一方、第２の電線挟持部２０は、外縁に沿って第２の電線９２を支持する機能を有している。従って、電線保護具１０Ｂは、図７に示されるように、第２の電線９２を、第２の電線挟持部２０の支持部１１で一回折り返す状態で支持することができる。 On the other hand, the 2nd electric wire clamping part 20 has a function which supports the 2nd electric wire 92 along an outer edge. Therefore, as shown in FIG. 7, the wire protector 10 B can support the second wire 92 in a state of being folded once by the support portion 11 of the second wire holding portion 20.

また、図示されていないが、第２の電線９２が第２の電線挟持部２０の支持部１１に巻き付けられることにより、電線保護具１０Ｂは、第２の電線９２を二回以上折り返す状態で支持することもできる。図７に示されるようなワイヤハーネス１も、本発明の実施形態の一つである。 Although not shown, the wire protector 10B supports the second electric wire 92 in a state where it is folded back twice or more by winding the second electric wire 92 around the support portion 11 of the second electric wire holding portion 20. You can also A wire harness 1 as shown in FIG. 7 is also one embodiment of the present invention.

＜その他＞
電線保護具１０，１０Ａ，１０Ｂにおいて、支持部１１，１１Ａの外縁は、正八角形の角部を形成しているが、それ以外の多角形の各角部を形成してもよい。但し、第２の電線９２が鋭角に折れ曲がることを避けるため、支持部１１，１１Ａの外縁は、全ての角が鈍角である多角形の各角部を形成することが望ましい。 <Others>
In the wire protectors 10, 10A, 10B, the outer edges of the support portions 11, 11A form regular octagonal corners, but other polygonal corners may be formed. However, in order to avoid the second electric wire 92 from being bent at an acute angle, it is desirable that the outer edges of the support portions 11 and 11A form polygonal corners in which all the angles are obtuse.

また、電線保護具１０，１０Ａにおいて、支持部１１，１１Ａと第２の電線９２との間の摩擦抵抗が十分高い場合には、支持部１１，１１Ａの外縁が、円又は楕円などの湾曲した形成で形成されてもよい。例えば、支持部１１，１１Ａの外縁部分に、第２の電線９２に対する摩擦抵抗を高めるための凹凸が設けられることなどが考えられる。 In the wire protector 10, 10A, when the frictional resistance between the support portions 11, 11A and the second electric wire 92 is sufficiently high, the outer edges of the support portions 11, 11A are curved, such as a circle or an ellipse. It may be formed by formation. For example, it is conceivable that irregularities for increasing the frictional resistance against the second electric wire 92 are provided on the outer edge portions of the support portions 11 and 11A.

１，１Ｂワイヤハーネス
８圧着部材
１０，１０Ａ，１０Ｂ電線保護具
１１，１１Ａ，１１Ｂ支持部
１２鍔部
１２収容部
１３起立部
１４ロック用突起部
１５ロック用孔
１６位置決め用突起部
１７位置決め用穴
２０電線挟持部（第２の電線挟持部）
２０Ｂ第１の電線挟持部
３０連結部
８０接合部
９１第１の電線
９２第２の電線
１００，１００Ａ分割部材
１１０Ａ，１１０Ｂ単位支持部
１１１貫通孔
１１２収容部
１１３第２の電線が配設される領域
１４１爪部
２０１分割挟持部
２０２分割挟持部 DESCRIPTION OF SYMBOLS 1,1B Wire harness 8 Crimp member 10, 10A, 10B Electric wire protector 11, 11A, 11B Support part 12 Gutter part 12 Storage part 13 Standing part 14 Locking projection part 15 Locking hole 16 Positioning projection part 17 Positioning hole 17 20 Electric wire clamping part (second electric wire clamping part)
20B 1st electric wire clamping part 30 Connection part 80 Joining part 91 1st electric wire 92 2nd electric wire 100,100A Dividing member 110A, 110B Unit support part 111 Through-hole 112 Accommodation part 113 2nd electric wire is arrange | positioned. Area 141 Claw part 201 Divided clamping part 202 Divided clamping part

Claims

A wire protector that is attached to a wire harness including a first electric wire and a second electric wire joined to an intermediate portion of the first electric wire, and protects the joint portion of the first electric wire and the second electric wire Because
It consists of two insulating members that are combined by sandwiching the joint portion of the first electric wire and the second electric wire,
A wire protector, wherein a support portion is formed to support the second electric wire in a state of being hooked and folded along an outer edge.

The outer edge along which the said 2nd electric wire in the said support part follows is a wire protector of Claim 1 which forms each corner | angular part of a polygon whose all corners are obtuse angles.

The said support part is an electric wire protector of Claim 2 which consists of a several unit support part which forms each corner | angular part of a polygon whose all the angles are obtuse angles.

The wire protector according to any one of claims 1 to 3, further comprising a lock portion that holds the two insulating members in a combined state.

The first electric wire is formed by blocking both sides of the region where the second electric wire is disposed from both ends of the support portion, and restricts the displacement of the second electric wire from the end of the support portion to the outside. The wire protector according to any one of claims 1 to 4, further comprising a restriction portion.

A flexible portion facing the support portion across a region in which the second electric wire is disposed, and the first portion in a direction away from a surface along which the second electric wire in the support portion extends. The wire protector according to any one of claims 1 to 5, further comprising a second restricting portion that restricts positional deviation of the two electric wires.

The wire protector according to any one of claims 1 to 6, wherein the two insulating members constituting the wire protector are formed in the same shape.

A first electric wire and a second electric wire joined to an intermediate portion of the first electric wire;
In the state where the first electric wire and the second electric wire are sandwiched and combined with two insulating members, the second electric wire is hooked and the second electric wire is folded along the outer edge. A wire harness comprising an electric wire protector in which a supporting portion to be supported is formed.