JP2011082113A

JP2011082113A - Mounting structure of electric wire cover

Info

Publication number: JP2011082113A
Application number: JP2009235524A
Authority: JP
Inventors: Kenji Suzuki; 謙志鈴木; Kazuhide Iketani; 一英池谷; Kohei Wachi; 鉱平和知
Original assignee: Yazaki Corp
Current assignee: Yazaki Corp
Priority date: 2009-10-09
Filing date: 2009-10-09
Publication date: 2011-04-21

Abstract

PROBLEM TO BE SOLVED: To enable to appropriately mount an electric wire cover on a wire lead-out part, doing away with picking omission of wires. SOLUTION: In a structure of mounting an electric wire cover 50 on a mat seal cover 40 functioning as a wire lead-out part of a connector 10, an interval of a pair of side walls of the wire cover is to be set wider than that of an outer periphery face 42a at a mat seal cover side, and the wire cover is pressed toward the mat seal cover side while narrowing the side walls at mounting, so that the wires are to be picked up without omission. Further, in mounting the wire cover 50 with the side walls narrowed, a plug-in part 55b at a wire cover side is to be plugged into an anti-opening part 48 at a mat seal cover side before engagement of lock member (a lock arm 45 and a lock part 55a), so that locking can be smoothly made. COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、例えばコネクタハウジングの後端から引き出された電線の束を保護しつつ該電線の束を所定の方向へ誘導するための電線カバーの装着構造に関するものである。 The present invention relates to an electric wire cover mounting structure for guiding a bundle of electric wires in a predetermined direction while protecting the bundle of electric wires drawn out from the rear end of a connector housing, for example.

特許文献１に従来の電線カバーの装着構造の例が提示されている。
この従来の電線カバーの装着構造においては、コネクタハウジングの後部の電線引出部に、該電線引出部から後方へ引き出される電線を覆う電線カバーを装着するにあたり、電線引出部の一対の側壁間の間隔と電線カバーの一対の側壁間の間隔をほぼ等しく設定しておき、電線カバーの一対の側壁を電線引出部の一対の側壁に嵌合させることにより、両者の側壁に設けられているロック手段を相互に係合させるようになっていた。 Patent Document 1 provides an example of a conventional wire cover mounting structure.
In this conventional wire cover mounting structure, the distance between the pair of side walls of the wire lead-out portion when the wire cover that covers the wire drawn backward from the wire lead-out portion is attached to the wire lead-out portion at the rear of the connector housing. And the pair of side walls of the wire cover are set to be approximately equal, and the pair of side walls of the wire cover is fitted to the pair of side walls of the wire lead-out portion, thereby providing locking means provided on both side walls. They were designed to engage with each other.

特開平８−１６７４４６号公報JP-A-8-167446

ところで、電線引出部の背面から引き出される電線の束は必ずしも整然と揃った状態になっているわけではなく、ときに、１本ないし数本の電線が横にはみ出した状態になっていることがある。そうした場合、電線カバーを電線引出部に被せようとした際に、電線の拾い漏れが生じやすくなってしまい、電線カバーと電線引出部の間に電線を噛み込んで、電線カバーを適切に装着できくなることがある。 By the way, the bundle of electric wires drawn out from the back surface of the electric wire extraction portion is not necessarily in an orderly state, and sometimes one or several electric wires protrude from the side. . In such a case, when the wire cover is put on the wire lead-out part, it becomes easy for the wire to be picked up and leaked. It may become.

本発明は、上述した事情に鑑みてなされたものであり、その目的は、電線の拾い漏れをなくして、電線カバーを適切に電線引出部に装着できるようにした電線カバーの装着構造を提供することにある。 The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a wire cover mounting structure in which the wire cover can be appropriately mounted on the wire lead-out portion without the electric wire pick-up leak. There is.

前述した目的を達成するために、本発明に係る電線カバーの装着構造は、下記（１）〜（２）を特徴としている。
（１）コネクタ等の後部に設けられた電線引出部に、該電線引出部から引き出された電線を覆う電線カバーが着脱自在に装着された電線カバーの装着構造において、
前記電線カバーが、一対の側壁を有する断面Ｕ字状の合成樹脂成形品により構成され、
前記電線引出部の互いに対向する一対の側壁と、該電線引出部の側壁に対応した前記電線カバーの互いに対向する一対の側壁に、相互に係合することで前記電線カバーを前記電線引出部にロックするロック手段が設けられ、
前記電線カバーの自由状態における前記一対の側壁間の間隔が、前記電線引出部の前記一対の側壁間の間隔よりも広く設定され、
一方、前記電線カバーの一対の側壁と前記電線引出部の一対の側壁に、前記電線カバーの側壁間の間隔を電線引出部の側壁間の間隔まで強制的に狭めた状態で、前記ロック手段が係合する前に互いに差し込み可能となり、差し込み状態とすることにより、前記電線カバーの側壁間の間隔を狭めた寸法のまま保持する開き止め手段が設けられていること。
（２）上記（１）の構成の電線カバーの装着構造において、
前記電線引出部の一対の側壁に対し略垂直な関係にある電線引出部の他の側壁と、前記電線カバーの一対の側壁に対し略垂直な関係にある電線カバーの他の側壁とに、相互に係合することで、その係合箇所を支点にして前記電線カバーを、前記電線引出部に接近する方向と離間する方向とに回動可能に保持する係合手段が設けられ、
一方、前記開き止め手段は、前記ロック手段よりも前記係合手段に対して近い位置に設けられていること。 In order to achieve the above-described object, the wire cover mounting structure according to the present invention is characterized by the following (1) to (2).
(1) In an electric wire cover mounting structure in which an electric wire cover that covers an electric wire drawn from the electric wire extraction portion is detachably attached to an electric wire extraction portion provided at the rear portion of the connector or the like.
The electric wire cover is composed of a synthetic resin molded product having a U-shaped cross section having a pair of side walls,
A pair of side walls facing each other of the wire lead-out portion and a pair of side walls facing each other of the wire cover corresponding to the side wall of the wire lead-out portion are engaged with each other so that the wire cover becomes the wire lead-out portion. Locking means for locking is provided,
The distance between the pair of side walls in the free state of the wire cover is set wider than the distance between the pair of side walls of the wire lead-out part,
On the other hand, in a state where the distance between the side walls of the wire cover is forcibly narrowed to the distance between the side walls of the wire lead portion on the pair of side walls of the wire cover and the pair of side walls of the wire lead portion, An opening preventing means is provided that can be inserted into each other before being engaged, and is held in a state in which the distance between the side walls of the wire cover is kept narrow by being in the inserted state.
(2) In the mounting structure of the electric wire cover configured as described in (1) above,
The other side wall of the wire lead portion that is substantially perpendicular to the pair of side walls of the wire lead portion and the other side wall of the wire cover that is substantially perpendicular to the pair of side walls of the wire cover, Engaging means is provided to hold the wire cover so as to be rotatable in a direction approaching and separating from the wire lead-out portion, with the engaging point as a fulcrum.
On the other hand, the opening preventing means is provided at a position closer to the engaging means than the locking means.

上記（１）の構成の電線カバーの装着構造によれば、予め自由状態のときの電線カバーの側壁間の間隔が、電線引出部の側壁間の間隔よりも広くなっているので、この電線カバーを電線引出部に装着する際に、広く開いた状態の電線カバーの一対の側壁の内側に、横にはみ出しそうな状態の電線を拾いながら、電線カバーを電線引出部に近づけて行くことができる。しかも漏れなく電線を拾った状態で、電線カバーの側壁間の間隔を電線引出部の側壁間の間隔と同じになるまで狭めながら、開き止め手段を互いに差し込み状態にすることにより、電線カバーの側壁間の間隔を狭めた寸法のまま保持しておくことができるので、そのままの状態で電線カバーと電線引出部の両側壁に設けたロック手段を相互に係合させることにより、電線カバーを電線引出部に確実にロックさせることができる。従って、電線カバーを装着する際の電線の拾い漏れを防ぐことができ、電線の噛み込みを避けながら、電線カバーを適切に電線引出部に装着することができる。
上記（２）の構成の電線カバーの装着構造によれば、まず、電線引出部の一対の側壁に対し略垂直な関係にある電線引出部の他の側壁と、前記電線カバーの一対の側壁に対し略垂直な関係にある電線カバーの他の側壁とに設けた係合手段を相互に係合させることにより、その係合箇所を支点にして電線カバーを回動させながら電線引出部に装着することができる。しかも、その回動過程において先に開き止め手段を互いに差し込み状態にしながら、次の段階としてロック手段を係合させることができるので、スムーズなロックを行うことができる。 According to the mounting structure of the electric wire cover having the configuration of (1) above, since the interval between the side walls of the electric wire cover in the free state is wider than the interval between the side walls of the electric wire lead portion, this electric wire cover Can be moved closer to the wire lead-out part while picking up the wire that seems to protrude sideways inside the pair of side walls of the wire cover in a wide open state. . In addition, while picking up the wires without leaking, the opening prevention means are inserted into each other while narrowing the interval between the side walls of the wire cover until it becomes the same as the interval between the side walls of the wire lead-out part. Since the distance between them can be kept as it is, the wire cover can be pulled out by engaging the wire cover and the locking means provided on the both side walls of the wire lead-out portion as they are. It can be securely locked to the part. Therefore, it is possible to prevent the electric wire from being picked up and leaked when the electric wire cover is attached, and to appropriately attach the electric wire cover to the electric wire drawing portion while avoiding the biting of the electric wire.
According to the mounting structure of the electric wire cover having the configuration of (2) above, first, the other side wall of the electric wire drawing portion that is substantially perpendicular to the pair of side walls of the electric wire drawing portion and the pair of side walls of the electric wire cover. By engaging the engaging means provided on the other side wall of the electric wire cover that is in a substantially vertical relationship with each other, the electric wire cover is attached to the electric wire drawing portion while rotating the electric wire cover with the engaging portion as a fulcrum. be able to. In addition, since the locking means can be engaged as the next stage while the opening preventing means are inserted into each other in the turning process, smooth locking can be performed.

本発明によれば、電線引出部から引き出された電線の中に横にはみ出しそうな電線がある場合にも、そのような電線を漏れなく拾いながら、電線カバーを適切に電線引出部に装着することができる。 According to the present invention, even when there is an electric wire that is likely to protrude laterally among the electric wires drawn out from the electric wire drawing portion, the electric wire cover is appropriately attached to the electric wire drawing portion while picking up such an electric wire without leakage. be able to.

以上、本発明について簡潔に説明した。更に、以下に説明される発明を実施するための形態を添付の図面を参照して通読することにより、本発明の詳細は更に明確化されるであろう。 The present invention has been briefly described above. Further, details of the present invention will be further clarified by reading the embodiments for carrying out the invention described below with reference to the accompanying drawings.

本発明の実施形態の電線カバーの装着構造が適用されたコネクタユニットの前側から見た分解斜視図である。It is the disassembled perspective view seen from the front side of the connector unit to which the mounting structure of the electric wire cover of the embodiment of the present invention was applied. 同コネクタユニットの後側から見た分解斜視図である。It is the disassembled perspective view seen from the rear side of the connector unit. 同コネクタユニットの全体組立状態を示す側断面図であり、マットシールカバーと電線カバーのロック部分の構成が分かる断面図である。It is a sectional side view which shows the whole assembly state of the connector unit, and is sectional drawing which understands the structure of the lock part of a mat | matte seal cover and an electric wire cover. 電線カバーの電線ガイド部の方向から見た図である。It is the figure seen from the direction of the electric wire guide part of an electric wire cover. コネクタハウジングに装着してあるマットシールカバーに電線カバーを装着しようとしている状態を示す上から見た平面図である。It is the top view seen from the top which shows the state which is going to mount | wear with the electric wire cover to the mat seal cover with which the connector housing is mounted | worn. 電線カバーの側端に設けてある係合部をマットシールカバーの側端に設けてある係合部に係合させ、その状態で電線カバーを矢印のように回動させて、電線カバーをマットシールカバーに装着しようとしている状態を示す平面図である。Engage the engaging part provided at the side end of the wire cover with the engaging part provided at the side end of the mat seal cover, and in this state, rotate the wire cover as shown by the arrow so that the wire cover is matted. It is a top view which shows the state which is going to mount | wear with a seal cover. 図６の状態を電線カバーの斜め後方から見た斜視図である。It is the perspective view which looked at the state of Drawing 6 from the slanting back of an electric wire cover. 電線カバーの上下の側壁間の間隔を狭めて、マットシールカバー側の開き止めに対し電線カバー側の差し込み部を差し込もうとしている状態を示す図７と同様の方向から見た斜視図である。It is the perspective view seen from the same direction as FIG. 7 which shows the state which narrows the space | interval between the upper and lower side walls of an electric wire cover, and is trying to insert the insertion part by the side of the electric wire cover with respect to the mat seal cover side opening prevention. . 図８の状態の次の段階として、電線カバー側のロック部をマットシールカバー側のロックアームに係合させて、電線カバーをマットシールカバー（電線引出部に相当）に装着した状態を示す斜視図である。FIG. 8 is a perspective view showing a state where the wire cover is attached to the mat seal cover (corresponding to the wire lead-out portion) with the lock portion on the wire cover side engaged with the lock arm on the mat seal cover side as the next stage of the state of FIG. FIG. （ａ）及び（ｂ）は、それぞれ図７と図８の状態をワイヤーハーネスの誘導方向（電線ガイド部側）から見た図である。(A) And (b) is the figure which looked at the state of Drawing 7 and Drawing 8 from the guidance direction (electric wire guide part side) of a wire harness, respectively. 本実施形態に対する比較例として、開き止め手段（開き止め部及び差し込み部）がない場合を示す図で、横にはみ出した電線を電線カバーの側壁で拾い切れないことがあり得ることを示す斜視図である。As a comparative example with respect to the present embodiment, it is a diagram showing a case where there is no opening prevention means (opening prevention part and insertion part), and a perspective view showing that an electric wire protruding laterally may not be picked up by the side wall of the electric wire cover It is. 図１１の状態を別の方向から見た図である。It is the figure which looked at the state of FIG. 11 from another direction. 電線カバーをマットシールカバーに適切に装着し、ワイヤーハーネスを結束バンドで電線カバーの電線ガイド部に締め付けた状態を示す平面図である。It is a top view which shows the state which attached the electric wire cover to the mat seal cover appropriately, and fastened the wire harness to the electric wire guide part of the electric wire cover with the binding band. 電線カバーの別の問題を説明するための平面図である。It is a top view for demonstrating another problem of an electric wire cover. 図１４で示した問題を解決するための工夫（切欠を設けたこと）を盛り込んだ別の実施形態の電線カバーの上から見た平面図である。It is the top view seen from the electric wire cover of another embodiment incorporating the device for providing the problem shown in FIG. 14 (providing notch). 図１５の電線カバーをコネクタに装着した状態を示す平面図である。It is a top view which shows the state which mounted | wore the connector with the electric wire cover of FIG. （ａ）及び（ｂ）は、図１５の工夫を盛り込んだことにより、図１４に示した問題が解決されるようになったことを示すための説明図である。(A) And (b) is explanatory drawing for showing that the problem shown in FIG. 14 came to be solved by incorporating the device of FIG.

以下、本発明の各実施形態を図面を参照して説明する。
図１〜図１３は本発明の実施形態の説明図であり、図１は実施形態の電線カバーの装着構造が適用されたコネクタユニットの前側から見た分解斜視図、図２は同コネクタユニットの後側から見た分解斜視図、図３は同コネクタユニットの全体組立状態を示す側断面図であり、マットシールカバーと電線カバーのロック部分の構成が分かる断面図、図４は電線カバーの電線ガイド部の方向から見た図、図５はコネクタハウジングに装着してあるマットシールカバーに電線カバーを装着しようとしている状態を示す上から見た平面図、図６は電線カバーの側端に設けてある係合部をマットシールカバーの側端に設けてある係合部に係合させ、その状態で電線カバーを矢印のように回動させて、電線カバーをマットシールカバーに装着しようとしている状態を示す平面図、図７は図６の状態を電線カバーの斜め後方から見た斜視図、図８は電線カバーの上下の側壁間の間隔を狭めて、マットシールカバー側の開き止めに対し電線カバー側の差し込み部を差し込もうとしている状態を示す図７と同様の方向から見た斜視図、図９は図８の状態の次の段階として、電線カバー側のロック部をマットシールカバー側のロックアームに係合させて、電線カバーをマットシールカバー（電線引出部に相当）に装着した状態を示す斜視図、図１０（ａ）及び（ｂ）は、それぞれ図７と図８の状態をワイヤーハーネスの誘導方向（電線ガイド部側）から見た図、図１１は本実施形態に対する比較例として開き止め手段（開き止め及び差し込み部）がない場合を示す図で、横にはみ出した電線を電線カバーの側壁で拾い切れないことがあり得ることを示す斜視図、図１２は図１１の状態を別の方向から見た図、図１３は電線カバーをマットシールカバーに適切に装着し、ワイヤーハーネスを結束バンドで電線カバーの電線ガイド部に締め付けた状態を示す平面図である。 Embodiments of the present invention will be described below with reference to the drawings.
1 to 13 are explanatory views of an embodiment of the present invention. FIG. 1 is an exploded perspective view seen from the front side of a connector unit to which the wire cover mounting structure of the embodiment is applied. FIG. FIG. 3 is an exploded perspective view seen from the rear side, FIG. 3 is a side sectional view showing the entire assembled state of the connector unit, a sectional view showing the configuration of the lock portion of the mat seal cover and the wire cover, and FIG. FIG. 5 is a plan view seen from above, FIG. 5 is a plan view seen from above showing a state in which the wire cover is being attached to the mat seal cover attached to the connector housing, and FIG. 6 is provided at the side end of the wire cover. The engagement part is engaged with the engagement part provided on the side edge of the mat seal cover, and the electric wire cover is rotated as shown by the arrow in this state to try to attach the electric wire cover to the mat seal cover. FIG. 7 is a perspective view of the state of FIG. 6 as viewed obliquely from the rear of the electric wire cover. FIG. 8 is a diagram illustrating a state in which the gap between the upper and lower side walls of the electric wire cover is narrowed to prevent the mat seal cover from opening. The perspective view seen from the same direction as FIG. 7 which shows the state which is going to insert the insertion part by the side of an electric wire cover with respect to FIG. 9, FIG. 9 is a mat seal | sticker as the next step of the state of FIG. FIGS. 10A and 10B are perspective views showing a state in which the electric wire cover is attached to the mat seal cover (corresponding to the electric wire drawing portion) by engaging with the lock arm on the cover side, and FIGS. FIG. 11 is a view showing the state of the wire harness as viewed from the guide direction of the wire harness (wire guide portion side), and FIG. 11 is a view showing a case where there is no opening prevention means (opening stop and insertion portion) as a comparative example with respect to this embodiment. Wire cover FIG. 12 is a perspective view showing the state of FIG. 11 seen from another direction, and FIG. 13 is a diagram showing a state in which the wire cover is properly attached to the mat seal cover, and the wire harness is bound. It is a top view which shows the state fastened to the electric wire guide part of the electric wire cover with the band.

図１及び図２に分解して示す、本実施形態の電線カバーの装着構造が適用されたコネクタユニットは、合成樹脂の成形品よりなるコネクタハウジング１０Ａの中に多数の端子（図示略）を収容して構成した多芯型のコネクタ１０と、コネクタハウジング１０Ａの外側に回動可能に装着されて、コネクタ１０を図示略の相手側のコネクタと嵌合する際に、矢印Ａ方向に回動操作されることで、てこの原理により、小さな回動操作力で大きな嵌合力を生じさせて、両コネクタの嵌合をスムーズに行わせる合成樹脂の成形品よりなるレバー２０と、コネクタハウジング１０Ａの後部に嵌め込まれて、コネクタハウジング１０Ａに収容した各端子から延びる電線とコネクタハウジング１０Ａとの隙間をシールするゴム製または柔軟樹脂製のマットシール３０と、コネクタハウジング１０Ａの後部に嵌合固定されて、マットシール３０を後側から押圧しつつ脱落防止する合成樹脂製のマットシールカバー（後述するように、このマットシールカバー４０がコネクタの電線引出部に相当する部分となる）４０と、マットシールカバー４０に装着されて、該マットシールカバー４０の後側から引き出された電線の束を保護しつつ該電線の束を所定の方向へ誘導するための合成樹脂の成形品よりなる電線カバー５０と、からなる。 The connector unit to which the wire cover mounting structure of the present embodiment shown in exploded view in FIGS. 1 and 2 accommodates a large number of terminals (not shown) in a connector housing 10A made of a synthetic resin molded product. The multi-core connector 10 configured as described above and a connector housing 10A are rotatably mounted on the outside of the connector housing 10A, and are rotated in the direction of arrow A when the connector 10 is fitted to a connector on the other side (not shown). Thus, the lever 20 made of a synthetic resin molded product that generates a large fitting force with a small rotational operation force and smoothly fits both connectors and the rear portion of the connector housing 10A by the lever principle. A mat or mat made of rubber or flexible resin that seals the gap between the electric wire extending from each terminal accommodated in the connector housing 10A and the connector housing 10A. And a mat seal cover made of synthetic resin that is fitted and fixed to the rear portion of the connector housing 10A and prevents the mat seal 30 from falling off while pressing the mat seal 30 from the rear side. 40, which is a portion corresponding to the lead-out portion) and the mat seal cover 40, and guides the bundle of electric wires in a predetermined direction while protecting the bundle of electric wires drawn out from the rear side of the mat seal cover 40 An electric wire cover 50 made of a synthetic resin molded product.

コネクタハウジング１０Ａは、図１に示すように、内周側のコネクタ主体部１１と、その外周側のフード部１２と、後端の筒壁部１３とを有する。フード部１２は、相手コネクタのコネクタハウジングの嵌合筒壁の外周に嵌合する部分、コネクタ主体部１１は、相手コネクタのコネクタハウジングの嵌合筒壁の内周に嵌合する部分であり、図３に示すように、フード部１２の後端は、コネクタ主体部１１の後端及び筒壁部１３の前端に結合されている。また、フード部１２の上部には、相手コネクタと嵌合した際に、相手コネクタ側のロック部とロックするロック機構１４が設けられている。また、コネクタハウジング１０Ａのコネクタ主体部１１の前部にはフロントホルダ１８が装着され、コネクタ主体部１１の前後方向の中間部の空間には、端子の抜け防止用のサイドスペーサ１９が装着されている。 As shown in FIG. 1, the connector housing 10 A includes an inner peripheral connector main body portion 11, an outer peripheral side hood portion 12, and a rear end cylindrical wall portion 13. The hood part 12 is a part that fits to the outer periphery of the fitting cylindrical wall of the connector housing of the mating connector, and the connector main part 11 is a part that fits to the inner circumference of the fitting cylindrical wall of the connector housing of the mating connector. As shown in FIG. 3, the rear end of the hood portion 12 is coupled to the rear end of the connector main body portion 11 and the front end of the cylindrical wall portion 13. In addition, a lock mechanism 14 is provided on the upper portion of the hood portion 12 to lock the lock portion on the mating connector side when the mating connector is fitted. Further, a front holder 18 is attached to the front portion of the connector main body 11 of the connector housing 10A, and a side spacer 19 for preventing terminal detachment is attached to a space in the middle of the connector main body 11 in the front-rear direction. Yes.

図１に示すように、レバー２０は、左右一対の側板部２１と、それら側板部２１を連結する連結アーム部２２とを有する略コ字状のもので、コネクタハウジング１０Ａのフード部１２の両サイド外面に突設したボス１６に側板部２１に形成した取付孔２６を嵌めることで、コネクタハウジング１０Ａの上側に、上下方向及び前後方向に回動可能に設けられており、相手コネクタとの嵌合前は、図示の斜め後方に倒れた状態の仮係止位置に保持されている。そして、コネクタ嵌合の際に、相手コネクタのハウジングに突設した凸部（図示略）を、レバー２０の側板部２１の周縁とコネクタハウジング１０Ａのフード部１２の前端に設けた入口２７、１７から、カム溝２５の一端に受け入れた状態で、レバー２０を図１中の矢印Ａ方向に回動させることにより、カム溝２５の作用によって、カム溝２５に沿ってスライドする凸部を介して、相手コネクタを、当該コネクタ１０側に引き込んで、両コネクタを嵌合させることができるようになっている。 As shown in FIG. 1, the lever 20 has a substantially U-shape having a pair of left and right side plate portions 21 and a connecting arm portion 22 that connects the side plate portions 21, and both the hood portions 12 of the connector housing 10 A. By fitting the mounting hole 26 formed in the side plate portion 21 to the boss 16 projecting from the side outer surface, the mounting hole 26 is provided on the upper side of the connector housing 10A so as to be rotatable in the vertical direction and the front-rear direction. Before joining, it is held at the temporary locking position in a state of being tilted obliquely backward in the drawing. When the connector is fitted, the protrusions (not shown) protruding from the housing of the mating connector are provided with inlets 27 and 17 provided at the peripheral edge of the side plate portion 21 of the lever 20 and the front end of the hood portion 12 of the connector housing 10A. From the convex portion that slides along the cam groove 25 by the action of the cam groove 25 by rotating the lever 20 in the direction of the arrow A in FIG. The mating connector can be pulled into the connector 10 and the two connectors can be fitted together.

図２及び図３に示すように、コネクタハウジング１０Ａの後部に設けられた筒壁部１３は、後面が開放し、背面から見た形状が略四角形のもので、その内部の空間１３ａがマットシール３０を収容する空間になっている。筒壁部１３の互いに対向する上壁部分と下壁部分の外周には、マットシールカバー４０をロックするための複数のロック凸部１５が設けられている。 As shown in FIGS. 2 and 3, the cylindrical wall portion 13 provided at the rear portion of the connector housing 10 A has an open rear surface and a substantially quadrangular shape when viewed from the rear surface, and a space 13 a inside thereof is a mat seal. It is a space that accommodates 30. A plurality of locking projections 15 for locking the mat seal cover 40 are provided on the outer periphery of the upper wall portion and the lower wall portion of the cylindrical wall portion 13 that face each other.

マットシールカバー４０は、図１及び図２に示すように、コネクタハウジング１０Ａの筒壁部１３の外周に嵌まる筒状周壁４１と、筒壁部１３の内側の空間１３ａに前半部分が嵌まることで、マットシール３０を前方に向けて押圧支持する肉厚の押圧面板部４２と、筒状周壁４１の後端縁と押圧面板部４２の前後方向の中間部分の外周とを結合することで、押圧面板部４２の前半部分と筒状周壁４１との間に、コネクタハウジング１０Ａの筒壁部１３の後端が挿入される環状溝４６を確保する連結壁部４４と、を有するものである。押圧面板部４２には、電線をそれぞれ引き出すために各端子の位置に対応して配された多数の電線引出孔が設けられている。また、筒状周壁４１の上壁部分と下壁部分には、マットシールカバー４０をコネクタハウジング１０Ａの筒壁部１３に組み付けた際に、コネクタハウジング１０Ａ側のロック凸部１５に係合するロック部４３が設けられている。このマットシールカバー４０をコネクタハウジング１０Ａの後部に装着した際には、このマットシールカバー４０の後面から後方に電線が引き出されることになるので、マットシールカバー４０がコネクタ１０の電線引出部に相当する部分となる。 As shown in FIGS. 1 and 2, the mat seal cover 40 has a first half portion fitted in a cylindrical peripheral wall 41 that fits on the outer periphery of the cylindrical wall portion 13 of the connector housing 10 A and a space 13 a inside the cylindrical wall portion 13. By connecting the thick pressing surface plate portion 42 that presses and supports the mat seal 30 forward, the rear end edge of the cylindrical peripheral wall 41 and the outer periphery of the intermediate portion in the front-rear direction of the pressing surface plate portion 42. And a connecting wall portion 44 that secures an annular groove 46 into which the rear end of the cylindrical wall portion 13 of the connector housing 10A is inserted between the front half portion of the pressing face plate portion 42 and the cylindrical peripheral wall 41. . The pressing face plate portion 42 is provided with a number of electric wire extraction holes arranged corresponding to the positions of the terminals in order to draw out the electric wires. Further, a lock that engages with the lock projection 15 on the connector housing 10A side when the mat seal cover 40 is assembled to the cylinder wall portion 13 of the connector housing 10A on the upper wall portion and the lower wall portion of the cylindrical peripheral wall 41. A portion 43 is provided. When the mat seal cover 40 is attached to the rear portion of the connector housing 10A, the electric wire is drawn backward from the rear surface of the mat seal cover 40, so the mat seal cover 40 corresponds to the electric wire extraction portion of the connector 10. It becomes a part to do.

本実施形態では、このマットシールカバー（電線引出部に相当する）４０に電線カバー５０が装着固定されるようになっており、マットシールカバー４０の筒状周壁４１の上壁部と下壁部の後端縁の一部に、連結壁部４４から切り離された状態で、電線カバー５０をロックするための帯板状のロックアーム（ロック手段）４５が突設されている。 In the present embodiment, the electric wire cover 50 is attached and fixed to the mat seal cover (corresponding to the electric wire drawing portion) 40, and the upper wall portion and the lower wall portion of the cylindrical peripheral wall 41 of the mat seal cover 40. A band plate-like lock arm (locking means) 45 for locking the electric wire cover 50 in a state of being separated from the connecting wall portion 44 is protruded from a part of the rear end edge.

このロックアーム４５は、基端４５ａが筒状周壁４１に一体に結合されると共に、自由端である先端４５ｂが、押圧面板部４２の後半部分の外周面４２ａに沿って後方へ延ばされて、押圧面板部４２の後半部分の外周面４２ａと交差する方向に撓み可能とされており、その自由端である先端４５ｂの内面には、電線カバー５０の側壁５１ａに設けられたロック部５５ａと係合する係合凸部４５ｃが設けられている。また、係合凸部４５ｃの先端面には、電線カバー５０側のロック部５５ａの挿入を容易にする斜面４５ｄが設けられている。 The lock arm 45 has a base end 45a integrally coupled to the cylindrical peripheral wall 41, and a distal end 45b which is a free end is extended rearward along the outer peripheral surface 42a of the rear half portion of the pressing surface plate portion 42. The pressure face plate portion 42 can be bent in a direction intersecting with the outer peripheral surface 42a of the latter half portion, and a lock portion 55a provided on the side wall 51a of the electric wire cover 50 is provided on the inner surface of the tip 45b which is a free end thereof. An engaging convex portion 45c to be engaged is provided. In addition, a slope 45d that facilitates insertion of the lock portion 55a on the electric wire cover 50 side is provided on the distal end surface of the engaging convex portion 45c.

また、マットシールカバー４０の筒状周壁４１上の、ロックアーム４５の基端４５ａが連結された部分の、ロックアーム４５の幅方向両側の位置には、筒状周壁４１の後端縁からロックアーム４５を切り離すことで、ロックアーム４５の実質的な撓み部分の長さを延長して、ロックアーム４５を撓みやすくする一対の第１スリット４５ｅが設けられている。 In addition, the portion where the base end 45a of the lock arm 45 is connected on the cylindrical peripheral wall 41 of the mat seal cover 40 is locked from the rear end edge of the cylindrical peripheral wall 41 at positions on both sides in the width direction of the lock arm 45. A pair of first slits 45e are provided to extend the length of the substantial bending portion of the lock arm 45 by separating the arm 45, and to make the lock arm 45 easy to bend.

これら一対の第１スリット４５ｅは、筒状周壁４１の後端縁から、筒状周壁４１の後端縁と前端縁の中間位置まで切り込み形成されており、それにより、ロックアーム４５が、それら第１スリット４５ｅの切り込み方向の奥端付近の位置を支点にして外方に撓み可能とされている。このように構成されたロックアーム４５は、押圧面板部４２の外周面４２ａのうち上下に対向する外壁面（互いに対向する一対の側壁に相当）に位置している。 The pair of first slits 45e are formed by cutting from the rear end edge of the cylindrical peripheral wall 41 to an intermediate position between the rear end edge and the front end edge of the cylindrical peripheral wall 41. The position near the back end in the cutting direction of one slit 45e can be bent outward. The lock arm 45 configured as described above is positioned on the outer wall surface (corresponding to a pair of side walls facing each other) of the outer peripheral surface 42a of the pressing surface plate portion 42 in the vertical direction.

一方、図１に示すように、電線カバー５０は、内部に電線を誘導するための空間を持つ略半筒形状のもので、上下一対の側壁５１ａを有した半筒状（断面Ｕ字状）の主カバー部５１と、その半筒状の主カバー部５１の一端側を塞ぐように設けられた端壁部（他の側壁に相当）５２と、半筒状の主カバー部５１の他端に延設されて電線の引き出し方向を案内する半筒状の電線ガイド部５３とを備えている。電線ガイド部５３は、主カバー部５１に受け入れた電線の束を、主カバー部５１の側方へ湾曲させつつ誘導する部分であり、その長さ方向の端部には、電線結束バンドの通し孔５４が設けられている。 On the other hand, as shown in FIG. 1, the electric wire cover 50 has a substantially semi-cylindrical shape having a space for guiding an electric wire therein, and has a semi-cylindrical shape (a U-shaped cross section) having a pair of upper and lower side walls 51a. Main cover portion 51, an end wall portion (corresponding to another side wall) 52 provided to close one end side of the semi-cylindrical main cover portion 51, and the other end of the semi-cylindrical main cover portion 51 And a semi-cylindrical wire guide portion 53 that guides the direction of drawing out the wire. The wire guide portion 53 is a portion that guides the bundle of wires received in the main cover portion 51 while curving it to the side of the main cover portion 51, and the end of the length direction passes through the wire binding band. A hole 54 is provided.

また、主カバー部５１の上下の両側壁５１ａには、マットシールカバー４０に電線カバー５０を装着した際にマットシールカバー４０と連結するための幅広のロック板５５が設けられており、このロック板５５の電線ガイド部５３側に、マットシールカバー４０側のロックアーム４５と係合するロック部５５ａが設けられている。また、ロック板５５の電線ガイド部５３側と反対側の部分は、マットシールカバー４０の押圧面板部４２の上下の外周面にロックアーム４５と並べて設けられた開き止め部（開き止め手段）４８に差し込まれる差し込み部（開き止め手段）５５ｂとなっている。 The upper and lower side walls 51a of the main cover 51 are provided with wide lock plates 55 for connecting to the mat seal cover 40 when the wire cover 50 is attached to the mat seal cover 40. A lock portion 55 a that engages with the lock arm 45 on the mat seal cover 40 side is provided on the electric wire guide portion 53 side of the plate 55. Further, the portion of the lock plate 55 opposite to the electric wire guide portion 53 side is an opening prevention portion (opening prevention means) 48 provided side by side with the lock arm 45 on the upper and lower outer peripheral surfaces of the pressing surface plate portion 42 of the mat seal cover 40. It becomes the insertion part (opening stop means) 55b inserted in.

ここで、図４に示すように、電線カバー５０の主カバー部５１の上下一対の両側壁５１ａの間隔Ｈ２は、マットシールカバー４０の押圧面板部４２の上下の外周面（側壁）４２ａ間の幅よりも開き気味になっており、電線カバー５０を装着する際に多数の電線を拾いやすくなっている。また、上下一対のロック板５５も、側壁５１ａの開き具合に伴って、マットシールカバー４０の上下のロックアーム４５の間隔よりも開き気味になっており、そのままではロックアーム４５にロック部５５ａを係合しにくいので、一対のロック板５５の間隔を狭めながら差し込み部５５ｂを開き止め部４８に差し込むことにより、ロック板５５の間隔を狭めた寸法に保ちながら、ロック部５５ａをロックアーム４５に係合させることができるようになっている。 Here, as shown in FIG. 4, the distance H2 between the pair of upper and lower side walls 51a of the main cover portion 51 of the wire cover 50 is between the upper and lower outer peripheral surfaces (side walls) 42a of the pressing surface plate portion 42 of the mat seal cover 40. It is more open than the width, and it is easy to pick up a large number of wires when the wire cover 50 is attached. Further, the pair of upper and lower lock plates 55 are also more open than the distance between the upper and lower lock arms 45 of the mat seal cover 40 as the side wall 51a is opened. Since the engagement is difficult, the insertion portion 55b is inserted into the opening stop portion 48 while the interval between the pair of lock plates 55 is narrowed, so that the lock portion 55a is attached to the lock arm 45 while the interval between the lock plates 55 is kept narrow. It can be engaged.

なお、このロック部５５ａは、電線カバー５０の装着時に、ロックアーム４５の係止凸部４５ｃと衝合することで、ロックアーム４５を外方に押し開きながら進み、係止凸部４５ｃを越えた段階でロックアーム４５が初期の内方位置に弾性復帰することでロックアーム４５の係合凸部４５ｃと係合して、それにより、電線カバー５０の装着方向と逆方向への移動を規制する機能を果たす部分である。 In addition, when the electric wire cover 50 is attached, the lock portion 55a abuts with the locking convex portion 45c of the lock arm 45, and advances while pushing the lock arm 45 outward, and exceeds the locking convex portion 45c. At this stage, the lock arm 45 is elastically returned to the initial inward position to engage with the engagement convex portion 45c of the lock arm 45, thereby restricting the movement of the wire cover 50 in the direction opposite to the mounting direction. It is the part that fulfills the function to do.

ここで、図２に示すように、マットシールカバー４０側の開き止め部４８は、押圧面板部４２の上下の外周面に対し所定の隙間を持って対向するように連結壁部４４から庇状に延設された押え板部４８ａと、その一端を押圧面板部４２の外周面に連結することで、押え板部４８ａを補強する補強壁部４８ｂとからなり、電線カバー５０のロック板５５を差し込む後方正面から見ると略Ｌ字状をなしている。 Here, as shown in FIG. 2, the opening preventing portion 48 on the mat seal cover 40 side is hook-like from the connecting wall portion 44 so as to face the upper and lower outer peripheral surfaces of the pressing face plate portion 42 with a predetermined gap. And a reinforcing wall portion 48b that reinforces the pressing plate portion 48a by connecting one end thereof to the outer peripheral surface of the pressing surface plate portion 42. When viewed from the rear front side, it is substantially L-shaped.

また、図１に示すように、電線カバー５０の端壁部（他の側壁に相当）５２の先端と、それに対応するマットシールカバー４０の押圧面板部４２の左右片方の外周面（他の側壁に相当）には、電線カバー５０を装着する際に互いに係合して装着の際の回動支点となる係合部（係合手段）５２ａ、４７がそれぞれ設けられている。従って、開き止め手段である開き止め部４８及び差し込み部５５ｂは、ロック手段であるロックアーム４５及びロック部５５ａよりも係合部５２ａ、４７に近い位置に位置しており、電線カバー５０を回動させてマットシールカバー４０に装着する際に、ロック部５５ａとロックアーム４５が掛かり合うよりも先に、差し込み部５５ａが開き止め部４７に差し込みを開始するようになっている。 Moreover, as shown in FIG. 1, the front-end | tip of the end wall part (equivalent to another side wall) 52 of the electric wire cover 50, and the outer peripheral surface (other side wall) of the right-and-left one side of the press surface board part 42 of the mat seal cover 40 corresponding to it. Are provided with engaging portions (engaging means) 52a and 47 that are engaged with each other when the electric wire cover 50 is attached and serve as pivotal fulcrums when the electric wire cover 50 is attached. Accordingly, the opening preventing portion 48 and the insertion portion 55b that are the opening preventing means are located closer to the engaging portions 52a and 47 than the lock arm 45 and the locking portion 55a that are the locking means, and the electric wire cover 50 is rotated. When it is moved and attached to the mat seal cover 40, the insertion portion 55a starts to be inserted into the opening preventing portion 47 before the lock portion 55a and the lock arm 45 are engaged with each other.

次に作用を説明する。
図１及び図２に示すコネクタユニットを組み立てる場合は、コネクタ１０を構成するコネクタハウジング１０Ａにレバー２０を組み付け、コネクタハウジング１０Ａの後部の筒壁部１３の内周側にマットシール３０を嵌め込んで、マットシール３０を押圧しながら、マットシールカバー４０をコネクタハウジング１０Ａの後部に装着固定する（図３参照）。この際、マットシールカバー４０のロック部４３がコネクタハウジング１０Ａ側のロック凸部１５に係合することで、マットシールカバー４０がコネクタハウジング１０Ａに固定される。この状態において、マットシールカバー４０の押圧面板部４２の電線引出孔から後方へ多数の電線が引き出された形になる。 Next, the operation will be described.
When assembling the connector unit shown in FIGS. 1 and 2, the lever 20 is assembled to the connector housing 10 A constituting the connector 10, and the mat seal 30 is fitted on the inner peripheral side of the cylindrical wall portion 13 at the rear of the connector housing 10 A. The mat seal cover 40 is mounted and fixed to the rear portion of the connector housing 10A while pressing the mat seal 30 (see FIG. 3). At this time, the mat seal cover 40 is fixed to the connector housing 10A by engaging the lock portion 43 of the mat seal cover 40 with the lock projection 15 on the connector housing 10A side. In this state, a large number of electric wires are drawn backward from the electric wire extraction holes of the pressing face plate portion 42 of the mat seal cover 40.

次に、図５及び図６に示すように、電線カバー５０の端壁部５２の係合部５２ａをマットシールカバー４０の側面の係合部４７に係合させ、マットシールカバー４０の後方に引き出されている電線を内側の空間に入るように拾いながら、係合部５２ａ、４７同士の係合箇所を支点にして、電線カバー５０を矢印Ｂで示すようにマットシールカバー４０側に回動させる。その際、最初は、図７及び図１０（ａ）に示すように、電線カバー５０の両側壁５１ａを自由な状態で開き気味に保ったまま、電線Ｗを漏れなく拾い集める。全部の電線Ｗを拾えたら、図８及び図１０（ｂ）に示すように、外側から側壁５１ａに矢印Ａ方向の押圧力を加えながら、徐々に両側壁５１ａの間隔を狭めて行き、その状態のままロック板５５の差し込み部５５ｂを、マットシールカバー４０開き止め部４８に差し込む。 Next, as shown in FIGS. 5 and 6, the engaging portion 52 a of the end wall portion 52 of the electric wire cover 50 is engaged with the engaging portion 47 on the side surface of the mat seal cover 40, and the mat seal cover 40 is placed behind the mat seal cover 40. While picking up the drawn electric wire so as to enter the inner space, the electric wire cover 50 is rotated to the mat seal cover 40 side as indicated by the arrow B with the engaging portion between the engaging portions 52a and 47 as a fulcrum. Let At that time, as shown in FIG. 7 and FIG. 10A, first, the electric wires W are picked up without leakage while the both side walls 51a of the electric wire cover 50 are kept open freely. When all the electric wires W have been picked up, as shown in FIGS. 8 and 10 (b), while the pressing force in the direction of arrow A is applied to the side wall 51a from the outside, the distance between the side walls 51a is gradually reduced, and this state The insertion part 55b of the lock plate 55 is inserted into the mat seal cover 40 opening prevention part 48 as it is.

その状態で更に電線カバー５０を回動させると、図９に示すように、電線カバー５０のロック部５５ａがロックアーム４５の先端に掛かり、ロックアーム４５を外側に撓ませながら、更に電線カバー５０を回動させると、電線カバー５０がマットシールカバー４０に適正に装着された段階で、図３に示すように、ロック部５５ａがロックアーム４５の係合凸部４５ｃに係合し、電線カバー５０が脱落しないようにロックされる。 When the electric wire cover 50 is further rotated in this state, as shown in FIG. 9, the lock portion 55a of the electric wire cover 50 is hooked on the tip of the lock arm 45, and the electric wire cover 50 is further bent while bending the lock arm 45 outward. , When the wire cover 50 is properly attached to the mat seal cover 40, the lock portion 55a engages with the engagement convex portion 45c of the lock arm 45 as shown in FIG. 50 is locked so as not to fall off.

以上の説明のように、この実施形態のコネクタユニットに適用した電線カバーの装着構造によれば、予め自由状態のときの電線カバー５０の側壁５１ａ間の間隔Ｈ２（図４参照）が、マットシールカバー４０（電線引出部）の押圧面板部４２の外周面４２ａの上下壁（側壁に相当）間の間隔Ｈ１よりも広くなっているので、この電線カバー５０をマットシールカバー４０に装着する際に、広く開いた状態の電線カバー５０の一対の側壁５１ａの内側に、横にはみ出しそうな状態の電線Ｗを拾いながら、電線カバー５０をマットシールカバー４０に近づけて行くことができる。しかも漏れなく電線Ｗを拾った状態で、電線カバー５０の側壁５１ａ間の間隔をマットシールカバー４０の押圧面板部４２の上下外壁面間の間隔と同じになるまで狭めながら、開き止め手段（開き止め部４８及び差し込み部５５ｂ）を互いに差し込み状態にすることにより、電線カバー５０の側壁５１ａ間の間隔を狭めた寸法のまま保持しておくことができるので、そのままの状態で、電線カバー５０とマットシールカバー４０に設けたロックアーム４５及びロック部５５ａを相互に係合させることにより、電線カバー５０をマットシールカバー４０に確実にロックさせることができる。従って、電線カバー５０を装着する際の電線の拾い漏れを防ぐことができ、電線の噛み込みを避けながら、電線カバー５０を適切にマットシールカバー４０に装着することができる。 As described above, according to the mounting structure of the electric wire cover applied to the connector unit of this embodiment, the distance H2 (see FIG. 4) between the side walls 51a of the electric wire cover 50 in the free state is set in advance. Since the distance H1 between the upper and lower walls (corresponding to the side walls) of the outer peripheral surface 42a of the pressing face plate portion 42 of the cover 40 (wire drawing portion) is wider, when the wire cover 50 is attached to the mat seal cover 40, The electric wire cover 50 can be brought closer to the mat seal cover 40 while picking up the electric wires W that are likely to protrude laterally inside the pair of side walls 51a of the electric wire cover 50 in a wide open state. In addition, in the state where the electric wire W is picked up without leakage, the opening preventing means (opening) By setting the stopper portion 48 and the insertion portion 55b) to each other, the distance between the side walls 51a of the wire cover 50 can be kept narrow, so that the wire cover 50 and the wire cover 50 can be kept as they are. By engaging the lock arm 45 and the lock portion 55a provided on the mat seal cover 40 with each other, the wire cover 50 can be reliably locked to the mat seal cover 40. Accordingly, it is possible to prevent the electric wire from being picked up and leaked when the electric wire cover 50 is attached, and the electric wire cover 50 can be appropriately attached to the mat seal cover 40 while avoiding the biting of the electric wire.

因みに、開き止め部４８がない場合を考えてみると、図１１及び図１２に示すように、電線カバー５０Ｘをマットシールカバー４０Ｘに装着する際にいきなり、ロックアーム４５にロック板５５のロック部５５ａを係合させなければならないので、操作が難しくなるおそれがある。また、電線カバー５０の側壁５１ａ間の間隔が、従来のように電線引出部の側壁間（マットシールカバー４０の押圧面板部４２の外周面のうち上下壁部間に相当）の間隔とほぼ等しい場合には、横にはみ出している電線Ｗｘをカバー装着の際に噛み込みやすくなる。本実施形態によれば、そういう問題の解消を図ることができる。 Incidentally, when the case where there is no opening stopper 48 is considered, as shown in FIGS. 11 and 12, when the electric wire cover 50X is attached to the mat seal cover 40X, suddenly, the lock arm 45 is locked to the lock portion of the lock plate 55. Since 55a must be engaged, the operation may be difficult. Further, the distance between the side walls 51a of the wire cover 50 is substantially equal to the distance between the side walls of the wire lead-out portion (corresponding to the space between the upper and lower wall portions of the outer peripheral surface of the pressing surface plate portion 42 of the mat seal cover 40) as in the prior art. In this case, the electric wires Wx protruding laterally are easily bitten when the cover is attached. According to this embodiment, such a problem can be solved.

また、本実施形態の場合、電線カバー５０を、図５〜図９に示したように、回動させながらマットシールカバー４０に装着することができると共に、その回動過程において、先に開き止め手段（開き止め部４８及び差し込み部５５ｂ）を互いに差し込み状態にしながら、次の段階としてロック手段（ロックアーム４５及びロック部５５ａ）を係合させることができるので、スムーズな装着及びロックを行うことができる。 In the case of this embodiment, as shown in FIGS. 5 to 9, the electric wire cover 50 can be attached to the mat seal cover 40 while being rotated, and in the process of rotation, the electric wire cover 50 is first prevented from opening. Since the locking means (the lock arm 45 and the locking part 55a) can be engaged as the next stage while the means (the opening preventing part 48 and the insertion part 55b) are inserted into each other, the smooth mounting and locking are performed. Can do.

以上のように電線カバー５０を取り付けて、電線Ｗの束（以下、ワイヤーハーネスＷという）を所定の方向（コネクタの正面方向から見て横方向）に誘導させることができるようになったら、図１３に示すように、ワイヤーハーネスＷを結束バンド９０を用いて電線カバー５０の電線ガイド５３の先端部に固定する。これにより、ワイヤーハーネスＷの端末とコネクタユニットの組み付けが完了する。 When the electric wire cover 50 is attached as described above and a bundle of electric wires W (hereinafter referred to as a wire harness W) can be guided in a predetermined direction (lateral direction as viewed from the front of the connector), As shown in FIG. 13, the wire harness W is fixed to the distal end portion of the wire guide 53 of the wire cover 50 using the binding band 90. Thereby, the assembly of the terminal of the wire harness W and the connector unit is completed.

ところで、このように組み上げた部品を車載した際、車両振動等によりワイヤーハーネスＷに曲げ方向の大小の外力がかかることがある。そうすると、電線カバー５０の電線ガイド部５３の柔軟性が小さい場合、図１４に示すように、電線カバー５０の電線ガイド部５３から出た直後の部分（矢印Ｐ１で示す部分）でワイヤーハーネスＷが屈曲しがちになりやすい。 By the way, when a component assembled in this way is mounted on a vehicle, a large or small external force in the bending direction may be applied to the wire harness W due to vehicle vibration or the like. Then, when the flexibility of the wire guide part 53 of the wire cover 50 is small, as shown in FIG. 14, the wire harness W is formed at the part immediately after coming out of the wire guide part 53 of the wire cover 50 (part indicated by the arrow P 1). It tends to bend.

しかし、このように局部的にワイヤーハーネスＷに屈曲が起き、しかも、それが電線カバー５０を出た直後の部分で起こると、ワイヤーハーネスＷや電線カバー５０に無理な負荷が加わるおそれがある。 However, if the wire harness W bends locally as described above and occurs in a portion immediately after exiting the wire cover 50, an excessive load may be applied to the wire harness W or the wire cover 50.

その対策を講じた電線カバーが、図１５及び図１６に示す電線カバー５０Ｂである。
この電線カバー５０Ｂでは、半円筒状の電線ガイド部５３Ｂの側壁部分の周方向長さを短くしていると共に、主カバー部５１の側壁５１ａから電線ガイド部５３Ｂの側壁への移行部（境界）の縁部に、該移行部の屈曲性を増すための切欠５９を設けている。 The electric wire cover in which the countermeasure is taken is an electric wire cover 50B shown in FIGS.
In this electric wire cover 50B, the circumferential length of the side wall portion of the semi-cylindrical electric wire guide portion 53B is shortened, and the transition portion (boundary) from the side wall 51a of the main cover portion 51 to the side wall of the electric wire guide portion 53B. A notch 59 for increasing the flexibility of the transition portion is provided at the edge of the.

この電線カバー５０Ｂを用いた場合、図１７（ａ）、（ｂ）に示すように、主カバー部５１の側壁５１ａから電線ガイド部５３Ｂの側壁部分への移行部（境界）に切欠５９を設けたことにより、矢印Ｐ２で示す箇所の屈曲性が増すことになり、電線ガイド部５３Ｂが柔軟に変形できるようになる。従って、車載時の振動などにより、電線カバー５０Ｂから引き出されたワイヤーハーネスＷに、例えば、矢印Ｆで示すような方向の外力が働いても、電線ガイド部５３Ｂが柔軟に追従することになり、振動吸収性能を発揮して、ワイヤーハーネスＷや電線カバー５０Ｂにかかる負荷を軽減することができる。 When this electric wire cover 50B is used, as shown in FIGS. 17A and 17B, a notch 59 is provided at a transition portion (boundary) from the side wall 51a of the main cover portion 51 to the side wall portion of the electric wire guide portion 53B. As a result, the flexibility of the portion indicated by the arrow P2 increases, and the wire guide portion 53B can be flexibly deformed. Therefore, for example, even if an external force in the direction indicated by the arrow F is applied to the wire harness 50 pulled out from the wire cover 50B due to vibrations in the vehicle, the wire guide portion 53B flexibly follows. The load on the wire harness W and the wire cover 50B can be reduced by exhibiting vibration absorption performance.

なお、本発明は、上述した実施形態に限定されるものではなく、適宜、変形、改良、等が可能である。その他、上述した実施形態における各構成要素の材質、形状、寸法、数、配置箇所、等は本発明を達成できるものであれば任意であり、限定されない。 In addition, this invention is not limited to embodiment mentioned above, A deformation | transformation, improvement, etc. are possible suitably. In addition, the material, shape, dimensions, number, arrangement location, and the like of each component in the above-described embodiment are arbitrary and are not limited as long as the present invention can be achieved.

また、上記各実施形態では、コネクタの後部に装着したマットシールカバーと電線カバーの間に本発明を適用した場合を説明したが、マットシールカバーを使用しない場合には、コネクタの電線引出部と電線カバーの間に本発明を適用することもできる。また、本発明は、ジャンクションブロックやリレーブロック等の電線引出部と電線カバーとの間にも適用できる。 In each of the above embodiments, the case where the present invention is applied between the mat seal cover and the wire cover attached to the rear portion of the connector has been described. The present invention can also be applied between the wire covers. Moreover, this invention is applicable also between electric wire drawer | drawing-out parts, such as a junction block and a relay block, and an electric wire cover.

１０Ａコネクタハウジング
４０マットシールカバー（電線引出部）
４２ａ押圧面板部の外周面（側壁）
４５ロックアーム（ロック手段）
５０，５０Ｂ電線カバー
５１主カバー部
５１ａ側壁
５２端壁部（他の側壁）
５２ａ係合部（係合手段）
５３Ｂ電線カバー部
５５ａロック部（ロック手段）
５５ｂ差し込み部（開き防止手段）
５９切欠 10A connector housing 40 mat seal cover (wire lead-out part)
42a Outer peripheral surface (side wall) of pressing face plate
45 Lock arm (locking means)
50, 50B Electric wire cover 51 Main cover part 51a Side wall 52 End wall part (other side wall)
52a Engagement part (engagement means)
53B Electric wire cover part 55a Lock part (locking means)
55b Insertion part (opening prevention means)
59 Notch

Claims

In the wire cover mounting structure in which the wire cover that covers the wire drawn from the wire drawing portion is detachably attached to the wire drawing portion provided at the rear portion of the connector,
The electric wire cover is composed of a synthetic resin molded product having a U-shaped cross section having a pair of side walls,
A pair of side walls facing each other of the wire lead-out portion and a pair of side walls facing each other of the wire cover corresponding to the side wall of the wire lead-out portion are engaged with each other so that the wire cover becomes the wire lead-out portion. Locking means for locking is provided,
The distance between the pair of side walls in the free state of the wire cover is set wider than the distance between the pair of side walls of the wire lead-out part,
On the other hand, in a state where the distance between the side walls of the wire cover is forcibly narrowed to the distance between the side walls of the wire lead portion on the pair of side walls of the wire cover and the pair of side walls of the wire lead portion, Mounting of an electric wire cover characterized in that it is possible to insert each other before being engaged, and provided with an opening preventing means for holding the wire cover in a state where the distance between the side walls of the electric wire cover is kept narrow by being in an inserted state. Construction.

The other side wall of the wire lead portion that is substantially perpendicular to the pair of side walls of the wire lead portion and the other side wall of the wire cover that is substantially perpendicular to the pair of side walls of the wire cover, Engaging means is provided to hold the wire cover so as to be rotatable in a direction approaching and separating from the wire lead-out portion, with the engaging point as a fulcrum.
2. The electric wire cover mounting structure according to claim 1, wherein the opening preventing means is provided at a position closer to the engaging means than the locking means.