JP2013063016A - Wire harness lead-out section structure of electric connection box - Google Patents

Wire harness lead-out section structure of electric connection box Download PDF

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JP2013063016A
JP2013063016A JP2012236468A JP2012236468A JP2013063016A JP 2013063016 A JP2013063016 A JP 2013063016A JP 2012236468 A JP2012236468 A JP 2012236468A JP 2012236468 A JP2012236468 A JP 2012236468A JP 2013063016 A JP2013063016 A JP 2013063016A
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wire harness
semi
cylindrical body
junction box
cylindrical
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JP5462339B2 (en
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Masahiro Kanamaru
正寛 金丸
Shin Nakayama
慎 中山
Taro Inoue
太郎 井上
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Yazaki Corp
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Yazaki Corp
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  • Connection Or Junction Boxes (AREA)

Abstract

PROBLEM TO BE SOLVED: To improve assemblability of an electric connection box and to improve waterproofness and fixability of a wire harness by installing a section for positively housing a loose part of a housing of the wire harness.SOLUTION: A wire harness lead-out port 2 is installed in an adjusting section of an electric connection box body 3 and a bottom cover 4, which constitute the electric connection box. A cylindrical wire harness lead-out guide 20 constituted by adjusting a semi-cylindrical body 21 on an electric connection box body side and both ends 21a and 22a in a circumferential direction of a semi-cylindrical body 22 on a bottom cover side is arranged at a peripheral edge of the wire harness lead-out port. A recess 24 recessed to an external side in a radial direction from a peripheral wall of the semi-cylindrical body 21 on the electric connection box body side and a peripheral wall of the semi-cylindrical body 22 on the bottom cover side is formed so as to house the loose part of the housing wound to an outer periphery of the wire harness in an inner periphery of the adjusting section in the circumferential direction of the peripheral walls of the two semi-cylindrical bodies.

Description

本発明は、自動車に搭載する電気接続箱のワイヤーハーネス導出部構造に関するものである。   The present invention relates to a wire harness lead-out portion structure of an electrical connection box mounted on an automobile.

自動車に搭載する電気接続箱のワイヤーハーネス導出部の構造として、例えば、特許文献１に記載のものが知られている。図８はそれと類似の電気接続箱のワイヤーハーネス導出部構造を示している。   As a structure of a wire harness lead-out portion of an electric connection box mounted on an automobile, for example, the structure described in Patent Document 1 is known. FIG. 8 shows a wire harness lead-out structure of an electric junction box similar to that.

この電気接続箱では、図８（ａ）に示すように、電気接続箱を構成する本体１０３とカバー１０４の合わせ部に、電気接続箱の内部から外部へワイヤーハーネスＷを導出するワイヤーハーネス導出口１０２が設けられており、そのワイヤーハーネス導出口１０２の周縁に、本体１０３側に設けた半円筒体１２１とカバー１０４に設けた半円筒体１２２を合わせることで構成された円筒状のワイヤーハーネス導出ガイド１２０が設けられている。   In this electrical junction box, as shown in FIG. 8 (a), a wire harness outlet for leading out the wire harness W from the inside of the electrical junction box to the outside at the mating portion of the main body 103 and the cover 104 constituting the electrical junction box. 102 is provided, and a cylindrical wire harness derived by combining a semi-cylindrical body 121 provided on the main body 103 side and a semi-cylindrical body 122 provided on the cover 104 on the periphery of the wire harness outlet 102. A guide 120 is provided.

特開平８−１４０２３５号公報Japanese Patent Laid-Open No. 8-140235

ところで、ワイヤーハーネスの外周に、外装体Ｓとして樹脂のシート（例えば、ビニール製の保護シート）やテープなどを巻き付けてから、本体１０３側の半円筒体１２１とカバー１０４側の半円筒体１２２を組み合わせて、防水性やワイヤーハーネスＷの固定性の確保を行うことがあるが、そうした場合、上述の従来のワイヤーハーネス導出部構造では、ワイヤーハーネスＷに被せた外装体Ｓに弛み（シワなど）があると、半円筒体１２１、１２２の合わせ部に外装体Ｓの弛み部分を噛み込みやすくなり、それが原因で、カバー１０４の装着作業がしづらくなったり、図８（ｂ）に示すように、合わせ部に隙間ｄができることにより、防水性を損うことになったり、ワイヤーハーネスＷの固定及び本体１０３とカバー１０４との組み付けが不確実になったりする等の問題があった。   By the way, after a resin sheet (for example, a protective sheet made of vinyl) or a tape is wound around the outer periphery of the wire harness as the exterior body S, the semi-cylindrical body 121 on the main body 103 side and the semi-cylindrical body 122 on the cover 104 side are attached. In combination, the waterproof property and securing of the wire harness W may be secured. In such a case, in the above-described conventional wire harness lead-out portion structure, the outer body S covered with the wire harness W is loosened (such as wrinkles). If there is, it becomes easy to bite the slack portion of the exterior body S into the mating portion of the semi-cylindrical bodies 121 and 122, which makes it difficult to attach the cover 104, as shown in FIG. In addition, since the gap d is formed in the mating portion, the waterproof property is impaired, the wire harness W is fixed, and the main body 103 and the cover 104 are assembled. There has been a problem such as that or become a certainty.

本発明は、上記事情を考慮し、ワイヤーハーネスの外装体の弛み部分を積極的に収容する部分を設けることにより、電気接続箱の組立性の向上と、防水性やワイヤーハーネスの固定性の向上を図ることのできる電気接続箱のワイヤーハーネス導出部構造を提供することを目的とする。   In consideration of the above circumstances, the present invention provides a portion for positively accommodating the slack portion of the outer body of the wire harness, thereby improving the assembly property of the electrical junction box and improving the waterproofness and the fixing property of the wire harness. It aims at providing the wire harness derivation | leading-out structure of the electrical junction box which can plan.

請求項１の発明は、電気接続箱を構成する該電気接続箱の本体である第１の部材とカバーである第２の部材の合わせ部に、電気接続箱の内部から外部へワイヤーハーネスを導出するワイヤーハーネス導出口が設けられ、そのワイヤーハーネス導出口の周縁に、前記第１の部材側に設けた半円筒体と前記第２の部材側に設けた半円筒体の周方向両端を合わせることで構成される円筒状のワイヤーハーネス導出ガイドが設けられ、前記第１の部材の半円筒体の周壁と前記第２の部材の半円筒体の周壁との周方向の合わせ部の周壁の内周に、前記ワイヤーハーネスの外周に巻き付けられた外装体の弛み部分を収容するように前記第１の部材の半円筒体の周壁及び前記第２の部材の半円筒体の周壁から半径方向外側に凹む凹部が設けられていることを特徴としている。   According to the first aspect of the present invention, the wire harness is led out from the inside of the electrical junction box to the outside of the mating portion of the first member that is the main body of the electrical junction box and the second member that is the cover. A wire harness outlet port is provided, and the circumferential ends of the semi-cylindrical body provided on the first member side and the semi-cylindrical body provided on the second member side are aligned with the periphery of the wire harness outlet port. An inner periphery of a peripheral wall of a circumferential matching portion between the peripheral wall of the semi-cylindrical body of the first member and the peripheral wall of the semi-cylindrical body of the second member In addition, the outer wall of the outer body wound around the outer circumference of the wire harness is recessed radially outward from the peripheral wall of the semi-cylindrical body of the first member and the peripheral wall of the semi-cylindrical body of the second member. That there is a recess. It is a symptom.

請求項２の発明は、請求項１に記載の電気接続箱のワイヤーハーネス導出部構造であって、前記第１の部材の半円筒体と前記第２の部材の半円筒体のうちの一方の半円筒体の周壁の周方向の両端に、前記凹部の一部を形成するための外側に折れ曲がった断面Ｌ字形の屈曲壁が設けられ、前記断面Ｌ字形の屈曲壁の内面と前記前記第１の部材の半円筒体と前記第２の部材の半円筒体のうちの他方の半円筒体の周壁の端面とで前記凹部が形成されていることを特徴としている。   Invention of Claim 2 is the wire harness derivation | leading-out structure of the electrical-connection box of Claim 1, Comprising: One of the semi-cylindrical body of the said 1st member and the semi-cylindrical body of the said 2nd member L-shaped bent walls that are bent outwardly to form a part of the concave portion are provided at both ends in the circumferential direction of the peripheral wall of the semi-cylindrical body, and an inner surface of the L-shaped bent wall and the first The concave portion is formed by a semi-cylindrical body of the member and an end surface of the peripheral wall of the other semi-cylindrical body of the second cylindrical member.

請求項１の発明によれば、ワイヤーハーネスに巻き付けた外装体（例えば、保護シートやテープなど）の弛み部分を、円筒状のワイヤーハーネス導出ガイドの内周に第１の部材の半円筒体の周壁及び第２の部材の半円筒体の周壁から半径方向外側に凹むように形成した凹部に収容することができる。従って、２つの半円筒体を合わせて円筒状のワイヤーハーネス導出ガイドを組み立てる際に、半円筒体の合わせ部に、外装体の弛み部分を噛み込む心配がなくなる。そのため、第１の部材と第２の部材の組み合わせが確実となり、作業も容易にできるようになる。また、無用な隙間を生じずに２つの半円筒体を組み合わせることができるし、外装体を傷つけるなどの心配もなくなる。その結果、第１の部材と第２の部材が確実に組み付けられ、電気接続箱におけるワイヤーハーネス導出部分の防水性を高めることができると共に、ワイヤーハーネスの固定性の向上が図れる。   According to the first aspect of the present invention, the slack portion of the exterior body (for example, a protective sheet or a tape) wound around the wire harness is attached to the inner periphery of the cylindrical wire harness lead-out guide of the semi-cylindrical body of the first member. It can accommodate in the recessed part formed so that it might dent radially outward from the surrounding wall and the surrounding wall of the semi-cylindrical body of the 2nd member. Therefore, when assembling the cylindrical wire harness lead-out guide by combining the two semi-cylindrical bodies, there is no fear of biting the slack portion of the exterior body into the mating portion of the semi-cylindrical bodies. Therefore, the combination of the first member and the second member is ensured, and the operation can be easily performed. In addition, the two semi-cylindrical bodies can be combined without generating unnecessary gaps, and there is no worry of damaging the exterior body. As a result, the first member and the second member are reliably assembled, the waterproofness of the wire harness lead-out portion in the electrical junction box can be improved, and the fixability of the wire harness can be improved.

請求項２の発明によれば、片方の半円筒体の周方向の両端部に断面Ｌ字形の屈曲壁を設けることで、ワイヤーハーネスの外装体の弛み部分を収容する凹部を形成しているので、半円筒体の肉厚を無闇に厚くせずに凹部を確保することができ、電気接続箱を樹脂成形する際の成形性の悪化を避けることができる。   According to the second aspect of the present invention, the concave portion that accommodates the slack portion of the exterior body of the wire harness is formed by providing bent walls having an L-shaped cross section at both ends in the circumferential direction of one half-cylindrical body. In addition, the concave portion can be secured without darkening the thickness of the semi-cylindrical body, and deterioration of moldability when the electrical connection box is resin-molded can be avoided.

本発明を適用した電気接続箱の斜め上から見た外観斜視図である。It is the external appearance perspective view seen from diagonally upward of the electrical junction box to which this invention is applied. 同電気接続箱の斜め下から見た外観斜視図である。It is the external appearance perspective view seen from diagonally lower of the same electrical junction box. 同電気接続箱の分解斜視図である。It is a disassembled perspective view of the same electrical junction box. 同電気接続箱のワイヤーハーネス導出口部分の下から見た拡大斜視図である。It is the expansion perspective view seen from under the wire harness outlet part of the same electrical junction box. 図４と同じ部分を少し違う角度から見た拡大斜視図である。It is the expansion perspective view which looked at the same part as FIG. 4 from the slightly different angle. 同ワイヤーハーネス導出口部分を縦に切った断面図である。It is sectional drawing which cut the wire harness outlet part vertically. 同ワイヤーハーネス導出口からワイヤーハーネスを引き出した際の同部分の軸線方向外方から見た正面図である。It is the front view seen from the axial direction outside of the same part at the time of pulling out a wire harness from the wire harness outlet. 従来の電気接続箱におけるワイヤーハーネス導出部の構造を示す図で、（ａ）は全体側面図、（ｂ）はワイヤーハーネス導出口の正面図である。It is a figure which shows the structure of the wire harness derivation | leading-out part in the conventional electrical junction box, (a) is a whole side view, (b) is a front view of a wire harness derivation | leading-out port.

以下、本発明の実施形態を図面を参照しながら説明する。   Embodiments of the present invention will be described below with reference to the drawings.

図１は本発明を適用した電気接続箱の斜め上から見た外観斜視図、図２は同電気接続箱の斜め下から見た外観斜視図、図３は同電気接続箱の分解斜視図、図４は同電気接続箱のワイヤーハーネス導出口部分の下から見た拡大斜視図、図５は図４と同じ部分を少し違う角度から見た拡大斜視図、図６は同ワイヤーハーネス導出口部分を縦に切った断面図、図７は同ワイヤーハーネス導出口からワイヤーハーネスを引き出した際の同部分の軸線方向外方から見た正面図である。   FIG. 1 is an external perspective view of an electrical junction box to which the present invention is applied as viewed from diagonally above, FIG. 2 is an external perspective view of the electrical junction box viewed from diagonally below, and FIG. 3 is an exploded perspective view of the electrical junction box. 4 is an enlarged perspective view of the electrical junction box as seen from below the wire harness outlet port portion, FIG. 5 is an enlarged perspective view of the same portion as FIG. 4 seen from a slightly different angle, and FIG. 6 is the wire harness outlet port portion. FIG. 7 is a front view of the same portion viewed from the outside in the axial direction when the wire harness is pulled out from the wire harness outlet port.

図１〜図３に示すように、この電気接続箱１は、電気接続箱１の下面部分に、電気接続箱１の内部から外部へワイヤーハーネスＷを導出するワイヤーハーネス導出口２を有している。この電気接続箱１は、電気接続箱本体（第１の部材）３と、底面カバー（第２の部材）４と、上面カバー５などから組み立てられており、前記のワイヤーハーネス導出口２は、電気接続箱本体３と底面カバー４の合わせ部に設けられている。   As shown in FIGS. 1 to 3, the electrical junction box 1 has a wire harness outlet 2 that leads the wire harness W from the inside of the electrical junction box 1 to the outside on the lower surface portion of the electrical junction box 1. Yes. The electrical junction box 1 is assembled from an electrical junction box main body (first member) 3, a bottom cover (second member) 4, a top cover 5, and the like. It is provided at the mating portion between the electrical junction box body 3 and the bottom cover 4.

この場合の底面カバー４は、電気接続箱本体３の側面開放部分に、ワイヤーハーネスＷを仮配索した後から、下方よりスライドさせて組み付けられるものであり、図４、図５に示すように、電気接続箱本体３と底面カバー４の側壁同士の合わせ部には、縦方向のスライドガイド部１１と、スライドガイド部１１の下端のストッパ部１２とが設けられている。図４の矢印Ａは、底面カバー４を組み付ける際の底面カバー４のスライド方向を示している。底面カバー４をスライドガイド部１１の案内で矢印Ａ方向にスライドさせて電気接続箱本体３に組み付けると、ストッパ部１２の位置で底面カバー４が止まり、図示しないロック機構の働きで電気接続箱本体３と底面カバー４がロックされる。   The bottom cover 4 in this case is assembled by sliding the wire harness W from the lower side of the electrical junction box body 3 after provisional wiring, as shown in FIGS. 4 and 5. A vertical slide guide portion 11 and a stopper portion 12 at the lower end of the slide guide portion 11 are provided at the joint portion between the side walls of the electrical junction box body 3 and the bottom cover 4. An arrow A in FIG. 4 indicates a sliding direction of the bottom cover 4 when the bottom cover 4 is assembled. When the bottom cover 4 is slid in the direction of the arrow A by the guide of the slide guide portion 11 and assembled to the electrical junction box body 3, the bottom cover 4 stops at the position of the stopper portion 12, and the electrical junction box body is acted by a lock mechanism (not shown). 3 and the bottom cover 4 are locked.

また、ワイヤーハーネス導出口２の周縁部には、電気接続箱本体３側に設けた半円筒体２１と底面カバー４側に設けた半円筒体２２の周方向両端２１ａ、２２ａを合わせることで構成される円筒状のワイヤーハーネス導出ガイド２０が設けられている。この円筒状のワイヤーハーネス導出ガイド２０の軸線方向は、図６に示すように、電気接続箱本体３に底面カバー４を組み合わせる際に底面カバー４を電気接続箱本体３にスライドさせる方向（上下方向）に対してやや斜めの方向に設定されている。   Moreover, it is comprised by aligning the circumferential direction both ends 21a and 22a of the semi-cylindrical body 21 provided in the electrical junction box main body 3 side and the semi-cylindrical body 22 provided in the bottom cover 4 side in the peripheral part of the wire harness outlet 2. A cylindrical wire harness lead-out guide 20 is provided. As shown in FIG. 6, the axial direction of the cylindrical wire harness lead-out guide 20 is the direction in which the bottom cover 4 is slid onto the electrical junction box body 3 when the bottom cover 4 is combined with the electrical junction box body 3 (vertical direction). ) In a slightly diagonal direction.

また、本実施形態の特徴として、電気接続箱本体３の半円筒体２１と底面カバー４側の半円筒体２２の周壁の周方向の合わせ部の内周には、図７に示すように、ワイヤーハーネスＷの外周に巻き付けられた外装体Ｓの弛み部分Ｓａを収容するための凹部２４が設けられている。   In addition, as a feature of the present embodiment, as shown in FIG. 7, the inner periphery of the circumferential matching portion of the peripheral wall of the semi-cylindrical body 21 of the electric junction box body 3 and the semi-cylindrical body 22 on the bottom cover 4 side A recess 24 is provided for accommodating the slack portion Sa of the exterior body S wound around the outer periphery of the wire harness W.

この凹部２４は、図４に示すように、ワイヤーハーネスＷの長手方向に沿った溝状に形成されており、その溝状の凹部２４が、電気接続箱１の外部から内部に向かう方向に溝幅が徐々に狭くなるように形成されている。つまり、凹部２４を円筒状のワイヤーハーネス導出ガイド２０の中心付近から見ると、奥側が狭まった略台形状をなしている。この凹部２４は、底面カバー４側の半円筒体２２の周壁の周方向の両端に、外側に折れ曲がった断面Ｌ字形の屈曲壁２３を形成することで形成されている。詳述すると、外側に折れ曲がった断面Ｌ字形の屈曲壁２３の内面と相手側の半円筒体２１の周壁の端面とで凹部２４が形成されている。   As shown in FIG. 4, the recess 24 is formed in a groove shape along the longitudinal direction of the wire harness W, and the groove-like recess 24 is grooved in the direction from the outside to the inside of the electrical connection box 1. The width is formed so as to be gradually reduced. That is, when the concave portion 24 is viewed from the vicinity of the center of the cylindrical wire harness lead-out guide 20, it has a substantially trapezoidal shape with the back side narrowed. The recesses 24 are formed by forming bent walls 23 having an L-shaped cross section that are bent outward at both ends in the circumferential direction of the peripheral wall of the semi-cylindrical body 22 on the bottom cover 4 side. More specifically, a recess 24 is formed by the inner surface of the bent wall 23 having an L-shaped cross section bent outward and the end surface of the peripheral wall of the other half-cylindrical body 21.

即ち、断面Ｌ字形の屈曲壁２３は、半円筒体２２の周壁から外方に垂直に突出した横壁２３ａと、その横壁２３ａの先端から相手側の半円筒体２１の周方向端部に向かって屈曲した縦壁２３ｂとからなり、横壁２３ａの奥側の位置が、電気接続箱１の外方から内方に向かうに従い徐々に相手側の半円筒体２１の周方向端部に近づくように傾斜していることにより、溝状の凹部２４の溝幅が徐々に小さくなっている。そして、縦壁２３ｂの先端内縁部と相手側の半円筒体２１の周方向端部の外縁部が接触することで、円筒状のワイヤーハーネス導出ガイド２０が円周方向に隙間無く閉じた形状になっている。また、凹部２４の奥端Ｐ（図４参照）では、２つの半円筒体２１、２２が互いに密着している。   That is, the bent wall 23 having an L-shaped cross section has a lateral wall 23 a that protrudes perpendicularly outward from the peripheral wall of the semi-cylindrical body 22, and a circumferential end of the opposing semi-cylindrical body 21 from the distal end of the lateral wall 23 a. It consists of a bent vertical wall 23b, and the position of the back side of the horizontal wall 23a is inclined so as to gradually approach the circumferential end of the other half-cylindrical body 21 as it goes inward from the outside of the electrical junction box 1. As a result, the groove width of the groove-like recess 24 is gradually reduced. Then, the inner edge of the vertical wall 23b and the outer edge of the circumferential end of the other half-cylindrical body 21 are in contact with each other, so that the cylindrical wire harness lead-out guide 20 is closed without any gap in the circumferential direction. It has become. In addition, at the back end P of the recess 24 (see FIG. 4), the two semi-cylindrical bodies 21 and 22 are in close contact with each other.

なお、底面カバー４の半円筒体２２の先端には、ワイヤーハーネスＷをテープ止めするためのテープ止め片３０が突設されている。   Note that a tape stopper piece 30 for tape-fixing the wire harness W protrudes from the tip of the semi-cylindrical body 22 of the bottom cover 4.

以上のように構成したので、図７に示すように、ワイヤーハーネスＷの外周に巻き付けた外装体Ｓ（例えば、保護用のビニールシートやテープなど）の弛み部分Ｓａを、円筒状のワイヤーハーネス導出ガイド２０の内周に形成した凹部２４に収容することができる。従って、２つの半円筒体２１、２２を合わせて円筒状のワイヤーハーネス導出ガイド２０を組み立てる際に、半円筒体２１、２２の合わせ部に、外装体Ｓの弛み部分Ｓａを噛み込む心配がなくなる。   Since it comprised as mentioned above, as shown in FIG. 7, the slack part Sa of the exterior body S (for example, a protective vinyl sheet, a tape, etc.) wound around the outer periphery of the wire harness W is derived from the cylindrical wire harness. It can be accommodated in a recess 24 formed on the inner periphery of the guide 20. Therefore, when assembling the cylindrical wire harness lead-out guide 20 by combining the two semi-cylindrical bodies 21 and 22, there is no fear of biting the slack portion Sa of the exterior body S into the mating portion of the semi-cylindrical bodies 21 and 22. .

そのため、電気接続箱本体３と底面カバー４の組み合わせ作業が容易にできるようになる。また、無用な隙間を生じずに２つの半円筒体２１、２２を組み合わせることができるし、外装体Ｓを傷つけるなどの心配もなくなり、その結果、電気接続箱１におけるワイヤーハーネス導出部分の防水性を高めることができると共に、ワイヤーハーネスＷの固定性の向上が図れる。   Therefore, the combination work of the electrical junction box body 3 and the bottom cover 4 can be easily performed. In addition, the two semi-cylindrical bodies 21 and 22 can be combined without generating unnecessary gaps, and there is no worry of damaging the exterior body S. In addition, the fixability of the wire harness W can be improved.

また、ワイヤーハーネスＷの外装体Ｓの弛み部分Ｓａを収容する凹部２４を、ワイヤーハーネスＷの長手方向に沿った溝状に形成して、その溝状の凹部２４を、電気接続箱１の外部から内部に向かう方向に溝幅が徐々に狭くなるように形成しているので、電気接続箱１の内部に向かうほど外装体Ｓの弛み部分をきつく締め付けることができ、防水性やワイヤーハーネスＷの固定性の一層の向上が図れる。   Moreover, the recessed part 24 which accommodates the slack part Sa of the exterior body S of the wire harness W is formed in the groove shape along the longitudinal direction of the wire harness W, and the groove-shaped recessed part 24 is made into the exterior of the electrical connection box 1. Since the groove width gradually decreases in the direction from the inside to the inside, the slack portion of the exterior body S can be tightened more toward the inside of the electrical junction box 1, and the waterproof property and the wire harness W Fixability can be further improved.

また、底面カバー４側の半円筒体２２の周方向の両端部に断面Ｌ字形の屈曲壁２３を設けることで、ワイヤーハーネスＷの外装体Ｓの弛み部分Ｓａを収容する凹部２４を形成しているので、半円筒体２２の肉厚を無闇に厚くせずに凹部２４を確保することができ、電気接続箱１を樹脂成形する際の成形性の悪化を避けることができる。   Moreover, the recessed part 24 which accommodates the slack part Sa of the exterior body S of the wire harness W is formed by providing the bending wall 23 with a L-shaped cross section in the both ends of the circumferential direction of the semi-cylindrical body 22 at the bottom cover 4 side. Therefore, the concave portion 24 can be secured without making the thickness of the semi-cylindrical body 22 thick, and deterioration of moldability when the electrical connection box 1 is resin-molded can be avoided.

また、底面カバー４側の半円筒体２２の両端に凹部２４を設けているので、組立の手順として最初に、底面カバー４の半円筒体２２にワイヤーハーネスＷをあてがい、外装体Ｓの弛み部分Ｓａを底面カバー４側の凹部２４に収容してから、次に、底面カバー４を電気接続箱本体３に組み付けることにより、外装体Ｓの弛み部分Ｓａを噛み込むことなく、スムーズに底面カバー４を電気接続箱本体３に組み合わせることができ、その状態で、２つの半円筒体２１、２２により組み立てられた円筒状のワイヤーハーネス導出ガイド３０から、ワイヤーハーネスＷを導出させることができる。   In addition, since the concave portions 24 are provided at both ends of the semi-cylindrical body 22 on the bottom cover 4 side, first, as an assembling procedure, the wire harness W is assigned to the semi-cylindrical body 22 of the bottom cover 4 and the slack portion of the exterior body S After accommodating Sa in the recess 24 on the bottom cover 4 side, the bottom cover 4 is then assembled to the electrical junction box body 3 so that the bottom cover 4 can be smoothly covered without biting the slack portion Sa of the exterior body S. Can be combined with the electrical junction box main body 3, and the wire harness W can be led out from the cylindrical wire harness lead-out guide 30 assembled by the two semi-cylindrical bodies 21 and 22 in this state.

また、円筒状のワイヤーハーネス導出ガイド３０の軸線方向を上下方向に対して斜めに設定しているので、底面カバー４を電気接続箱本体３にスライドさせながら組み付ける動作に従って、電気接続箱本体３側の半円筒体２１に底面カバー４側の半円筒体２２を斜めからスライド気味に組み合わせることができ、よりワイヤーハーネスＷの外装体Ｓの弛み部分Ｓａを噛み込みにくくなり、組立作業性が一層向上する。即ち、底面カバー４を電気接続箱本体３に確実かつ簡単に組み付けることができる。   Further, since the axial direction of the cylindrical wire harness lead-out guide 30 is set obliquely with respect to the vertical direction, the electrical connection box body 3 side is moved according to the operation of assembling the bottom cover 4 while sliding it on the electrical connection box body 3. The semi-cylindrical body 21 on the bottom cover 4 side can be combined with the semi-cylindrical body 21 obliquely in a sliding manner, and the loosened portion Sa of the outer body S of the wire harness W becomes more difficult to bite, further improving the assembly workability. To do. That is, the bottom cover 4 can be reliably and easily assembled to the electrical junction box body 3.

１ 電気接続箱
２ ワイヤーハーネス導出口
３ 電気接続箱本体（第１の部材）
４ 底面カバー（第２の部材）
２０ 円筒状のワイヤーハーネス導出ガイド
２１，２２ 半円筒体
２１ａ，２２ａ 周方向両端
２３ 断面Ｌ字形の屈曲壁
２４ 凹部
Ｗ ワイヤーハーネス
Ｓ 外装体
Ｓａ 弛み部分 1 Electrical junction box 2 Wire harness outlet 3 Electrical junction box main body (first member)
4 Bottom cover (second member)
DESCRIPTION OF SYMBOLS 20 Cylindrical wire harness derivation | leading-out guide 21, 22 Semi-cylindrical body 21a, 22a Circumferential direction both ends 23 Bent wall of L-shaped cross section 24 Recessed part W Wire harness S Exterior body Sa Slack part

Claims (2)

電気接続箱を構成する該電気接続箱の本体である第１の部材とカバーである第２の部材の合わせ部に、電気接続箱の内部から外部へワイヤーハーネスを導出するワイヤーハーネス導出口が設けられ、
そのワイヤーハーネス導出口の周縁に、前記第１の部材側に設けた半円筒体と前記第２の部材側に設けた半円筒体の周方向両端を合わせることで構成される円筒状のワイヤーハーネス導出ガイドが設けられ、
前記第１の部材の半円筒体の周壁と前記第２の部材の半円筒体の周壁との周方向の合わせ部の周壁の内周に、前記ワイヤーハーネスの外周に巻き付けられた外装体の弛み部分を収容するように前記第１の部材の半円筒体の周壁及び前記第２の部材の半円筒体の周壁から半径方向外側に凹む凹部が設けられていることを特徴とする電気接続箱のワイヤーハーネス導出部構造。 A wire harness outlet for leading out the wire harness from the inside of the electrical junction box to the outside is provided at the mating portion of the first member that is the main body of the electrical junction box and the second member that is the cover. And
A cylindrical wire harness constituted by aligning the circumferential ends of the semi-cylindrical body provided on the first member side and the semi-cylindrical body provided on the second member side on the periphery of the wire harness outlet A derivation guide is provided,
The slack of the exterior body wound around the outer periphery of the wire harness on the inner periphery of the peripheral wall of the circumferential portion of the peripheral wall of the semi-cylindrical body of the first member and the peripheral wall of the semi-cylindrical body of the second member An electrical junction box having a recess recessed radially outward from the peripheral wall of the semi-cylindrical body of the first member and the peripheral wall of the semi-cylindrical body of the second member so as to accommodate the portion. Wire harness lead-out structure. 請求項１に記載の電気接続箱のワイヤーハーネス導出部構造であって、
前記第１の部材の半円筒体と前記第２の部材の半円筒体のうちの一方の半円筒体の周壁の周方向の両端に、前記凹部の一部を形成するための外側に折れ曲がった断面Ｌ字形の屈曲壁が設けられ、前記断面Ｌ字形の屈曲壁の内面と前記前記第１の部材の半円筒体と前記第２の部材の半円筒体のうちの他方の半円筒体の周壁の端面とで前記凹部が形成されていることを特徴とする電気接続箱のワイヤーハーネス導出部構造。 It is a wire harness derivation part structure of the electric junction box according to claim 1,
The first member half-cylindrical body and the second member half-cylindrical body are bent outward to form a part of the recess at both ends in the circumferential direction of the circumferential wall of one half-cylindrical body. A bent wall having an L-shaped cross section is provided, and the peripheral wall of the other half-cylindrical body among the inner surface of the bent wall having the L-shaped cross section, the semi-cylindrical body of the first member, and the semi-cylindrical body of the second member The wire harness lead-out structure of the electrical junction box, wherein the concave portion is formed with the end surface of the electrical connection box.
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