JP2007331451A - Cowl louver mounting structure - Google Patents

Cowl louver mounting structure Download PDF

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Publication number
JP2007331451A
JP2007331451A JP2006163047A JP2006163047A JP2007331451A JP 2007331451 A JP2007331451 A JP 2007331451A JP 2006163047 A JP2006163047 A JP 2006163047A JP 2006163047 A JP2006163047 A JP 2006163047A JP 2007331451 A JP2007331451 A JP 2007331451A
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cowl louver
mounting
mounting portion
cowl
vehicle
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JP2006163047A
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JP4762059B2 (en
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Keiichi Uchino
敬一 内野
Yuji Mizuno
祐史 水野
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Toyota Auto Body Co Ltd
Toyota Motor Corp
Aisin Chemical Co Ltd
Aisin Corp
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Aisin Seiki Co Ltd
Toyota Auto Body Co Ltd
Toyota Motor Corp
Aisin Chemical Co Ltd
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Priority to JP2006163047A priority Critical patent/JP4762059B2/en
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Abstract

<P>PROBLEM TO BE SOLVED: To prevent the bottom-touch of an engine hood by moving a cowl louver downward by colliding load applied from above via the engine hood. <P>SOLUTION: The length of the cowl louver 4 is made smaller than a space between the rear parts of right and left apron upper members 5, and the cowl louver 4 is arranged between the rear parts of both upper members 5. Plate-shaped mounting portions 46 protruded to the vehicle outside are provided at both ends of the cowl louver 4. In each mounting portion 46, there are formed a mounting hole 47 and a cutout groove 48 which ranges from the mounting hole 47 to the outer edge of the mounting portion 46. The mounting portion 46 is laid on an upper end flange portion 61 of a fender panel 6 provided on the upper member 5, and the mounting portion 46 is joined to the fender panel 6 with a lock member 80 passing downward through the mounting hole 47 in both 46, 61. When a pedestrian collides with the engine hood to give downward colliding load to the cowl louver 4, the mounting portion 46 is separated from the fender panel 6 and the cowl louver 4 is moved downward. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、自動車のフロントウィンドウの下縁に沿って設けられたカウルルーバの取付構造に関するものである。   The present invention relates to a mounting structure for a cowl louver provided along a lower edge of a front window of an automobile.

自動車のフロントウィンドウの下縁には車幅方向にカウルトップが設置され、カウルトップの上にはこれを被覆するように合成樹脂製のカウルルーバが設置されている（例えば特許文献１，２参照。）。尚、特許文献１，２はカウルルーバの車幅方向左右の端末部とフロントガラスの側縁に沿うウィンドウモールの下端との連結構造が記載されている。   A cowl top is installed on the lower edge of the front window of the automobile in the vehicle width direction, and a cowl louver made of synthetic resin is installed on the cowl top so as to cover the cowl top (see, for example, Patent Documents 1 and 2). ). Patent Documents 1 and 2 describe a connection structure between the left and right end portions of the cowl louver in the vehicle width direction and the lower end of the window molding along the side edge of the windshield.

図４ないし図６は、カウルルーバまわりの構造の代表例を示すもので、カウルルーバ４Ａは上方へ向けて開口する断面ほぼコ字形をなし、同じく上方へ向けて開口する断面ほぼコ字形の開きカウルトップ３の上にその開口を覆うように設置されている。図４の３Ａはフロントウィンドウを閉じるフロントガラス１の下縁を支持する閉じカウルトップ、９は車室前端のダッシュパネルである。   4 to 6 show typical examples of the structure around the cowl louver. The cowl louver 4A has an approximately U-shaped cross section that opens upward, and an open cowl top that also has an approximately U-shaped cross section that opens upward. 3 is installed so as to cover the opening. 4A is a closed cowl top that supports the lower edge of the windshield 1 that closes the front window, and 9 is a dash panel at the front end of the passenger compartment.

カウルルーバ４Ａはその底壁４１の左右両端が、エンジンルームの左右の側壁の上縁をなすエプロンアッパメンバ５の後部上面に載置されている。カウルルーバ４Ａの両端の縦壁状の端壁４５の上端から平板状の取付部４６が車外方向に水平に延出している。一方、エプロンアッパメンバ５の上面にはブラケット６０を介してフェンダパネル６の上端フランジ部６１が載置固定されている。そして該上端フランジ部６１に上記取付部４６が重ねられ固定されている。固定は、取付部４６および上端フランジ部６１にそれぞれ形成された同心の取付孔４７にクリップ８０を貫通させることによりなされている。   The cowl louver 4A has both left and right ends of the bottom wall 41 mounted on the upper surface of the rear part of the apron upper member 5 that forms the upper edges of the left and right side walls of the engine room. A flat plate-like mounting portion 46 extends horizontally from the upper end of the vertical wall-like end wall 45 at both ends of the cowl louver 4A in the vehicle outward direction. On the other hand, an upper end flange portion 61 of the fender panel 6 is placed and fixed on the upper surface of the apron upper member 5 via a bracket 60. The mounting portion 46 is overlapped and fixed to the upper end flange portion 61. The clip 80 is passed through concentric mounting holes 47 formed in the mounting portion 46 and the upper end flange portion 61, respectively.

カウルルーバ４Ａの上方にはエンジンフード２の後端部が位置しており、エンジンフード２の後端部はヒンジアーム２１によりエプロンアッパメンバ５の上面後端部に連結されている。ヒンジアーム２１の基端はエプロンアッパメンバ５の上面後端部に設けられたヒンジブラケットのヒンジ軸２０により上下方向回動自在に支持されている。ヒンジアーム２１は上記基端から前方へ延在し、先端がカウルルーバ４Ａの底壁４１の上方に位置し、エンジンフード２の後端部と締結されている。カウルルーバ４Ａはその前壁４２の上縁がシール部材７０を介してエンジンフード２の後端部の下面に当接している。
特開２００３−１２７６６１号公報 特開２００３−２６７２６３号公報 The rear end portion of the engine hood 2 is located above the cowl louver 4A, and the rear end portion of the engine hood 2 is connected to the upper rear end portion of the apron upper member 5 by a hinge arm 21. The base end of the hinge arm 21 is supported by a hinge shaft 20 of a hinge bracket provided at the rear end of the upper surface of the apron upper member 5 so as to be rotatable in the vertical direction. The hinge arm 21 extends forward from the base end, the tip is located above the bottom wall 41 of the cowl louver 4A, and is fastened to the rear end of the engine hood 2. The upper edge of the front wall 42 of the cowl louver 4 </ b> A is in contact with the lower surface of the rear end portion of the engine hood 2 via the seal member 70.
JP 2003-127661 A JP 2003-267263 A

ところで、車両と歩行者とが衝突して歩行者がエンジンフード２の上に倒れ込み、肩や頭部などがエンジンフード２の後端部に当たって衝突荷重（図６の白矢印Ｆ）が作用した場合、エンジンフード２の後端部は下方へ変位し、その過程で衝撃は吸収される。しかしながら、衝突荷重が大きいと、エンジンフード２はシール材７０を介してカウルルーバ４Ａの前壁４２に衝き当たり、またヒンジアーム２１がカウルルーバ４Ａの底壁４１に衝き当たると、カウルルーバ４Ａはその底壁４１の両端が左右のエプロンアッパメンバ５上に載置されており、かつ取付部４６が左右のフェンダパネル６の上端フランジ部６１に固定されているから、エンジンフード２はそれ以上下降せず底づきして衝撃は吸収されない。   By the way, when the vehicle and the pedestrian collide, the pedestrian falls on the engine hood 2 and the shoulder or the head hits the rear end of the engine hood 2 and a collision load (white arrow F in FIG. 6) acts. The rear end of the engine hood 2 is displaced downward, and the impact is absorbed in the process. However, when the collision load is large, the engine hood 2 hits the front wall 42 of the cowl louver 4A through the seal member 70, and when the hinge arm 21 hits the bottom wall 41 of the cowl louver 4A, the cowl louver 4A Since both ends of 41 are mounted on the left and right apron upper members 5 and the mounting portion 46 is fixed to the upper end flange portion 61 of the left and right fender panels 6, the engine hood 2 does not descend any further Therefore, the shock is not absorbed.

そこで本発明は、エンジンフードの後端部に上方から衝突荷重が作用したとき、衝突荷重の大きさに応じてカウルルーバとエンジンフードの後端部が下方へ変位して衝撃を吸収し、エンジンフード上に倒れ込んだ歩行者の障害を可及的に小さくするカウルルーバの取付構造を提供することを課題としてなされたものである。   Therefore, according to the present invention, when a collision load is applied to the rear end portion of the engine hood from above, the cowl louver and the rear end portion of the engine hood are displaced downward in accordance with the magnitude of the collision load to absorb the impact. An object of the present invention is to provide a cowl louver mounting structure that minimizes the obstacle of a pedestrian who has fallen down.

本発明は、車体のフロントガラスの下縁に沿って車幅方向に延在し、エンジンフードの後端部の下方位置で、カウルトップを覆い隠すように設けられた合成樹脂のカウルルーバであって、左右両端が、エンジンルームの側壁上縁に沿って延びる左右のエプロンアッパメンバの後部に結合された車両のカウルルーバの取付構造において、カウルルーバの車幅方向の長さ寸法を、上記左右の両エプロンアッパメンバの後部間の間隔よりも小さい寸法に形成して、カウルルーバを両エプロンアッパメンバの後部間に配する。カウルルーバにはその左右両端から車外側へ突出する板状の取付部を設け、該取付部を上記エプロンアッパメンバの上面に重ね合わせ、上記取付部およびエプロンアッパメンバの上面に設けた取付孔に係止部材を貫通させて上記取付部を上記エプロンアッパメンバの上面に結合せしめる。上記取付部には、その取付孔から取付部の外縁に通じる切欠き溝を形成し、カウルルーバに上記エンジンフードを介して上方から衝突荷重が加えられたときに上記取付部が上記エプロンアッパメンバから離脱してカウルルーバを下方へ移動せしめるようになす（請求項１）。カウルルーバにエンジンフードを介して衝突荷重が加えられると、両端の取付部にはこれらを車内側へ引っ張る力が作用して、これにより係止部材が切欠き溝から抜け出して取付部はエプロンアッパメンバから離脱する。そしてカウルルーバは左右のエプロンアッパメンバ間をエンジンフードと一体に下方へ移動し、この過程で衝撃が吸収される。   The present invention is a synthetic resin cowl louver that extends in the vehicle width direction along the lower edge of the windshield of a vehicle body and is provided to cover the cowl top at a position below the rear end of the engine hood. In the vehicle cowl louver mounting structure in which the left and right ends are coupled to the rear portions of the left and right apron upper members extending along the upper edge of the engine room side wall, the length dimension of the cowl louver in the vehicle width direction is determined by the both left and right aprons. A cowl louver is formed between the rear portions of both apron upper members, with a size smaller than the distance between the rear portions of the upper members. The cowl louver is provided with a plate-like mounting portion that protrudes from the left and right ends of the cowl louver. The mounting portion is superimposed on the upper surface of the apron upper member, and is engaged with mounting holes provided on the upper surface of the mounting portion and the apron upper member. A fixing member is passed through to attach the mounting portion to the upper surface of the apron upper member. A notch groove is formed in the mounting portion from the mounting hole to the outer edge of the mounting portion, and when a collision load is applied to the cowl louver from above via the engine hood, the mounting portion is separated from the apron upper member. The cowl louver is detached and moved downward (Claim 1). When a collision load is applied to the cowl louver via the engine hood, a force pulling them to the inside of the vehicle acts on the mounting parts at both ends, so that the locking member comes out of the notch groove and the mounting part is the apron upper member Leave. The cowl louver moves downward between the left and right apron upper members together with the engine hood, and the shock is absorbed in this process.

上記カウルルーバを、上部が開口する断面ほぼコ字形に形成する。上記取付孔および切欠き溝を設けた取付部を、上記カウルルーバの両端の縦壁状の端壁の上縁から車外側へ向けて突出せしめる。上記取付部を、上記エプロンアッパメンバの上面に立設したブラケットを介してエプロンアッパメンバに支持固定されたフェンダパネルの上端フランジ部に上記係止部材により結合せしめる（請求項２）。エンジンフードおよびフェンダパネルの上端がエプロンアッパよりも高い位置に設けられ車両のカウルルーバの取付けに好適で、上方からの衝突荷重によりカウルルーバをフェンダパネルの上端から離脱させることができる。   The cowl louver is formed in a substantially U-shaped cross-section with an open top. The mounting part provided with the mounting hole and the notch groove is projected from the upper edge of the vertical wall-shaped end wall at both ends of the cowl louver toward the outside of the vehicle. The mounting portion is coupled to the upper end flange portion of the fender panel supported and fixed to the apron upper member by the locking member via a bracket standing on the upper surface of the apron upper member. The upper ends of the engine hood and the fender panel are provided at a position higher than the apron upper, which is suitable for mounting the cowl louver of the vehicle, and the cowl louver can be detached from the upper end of the fender panel by a collision load from above.

上記エンジンフードの後端部はヒンジアームを介して車体に回動可能に支持され、上記ヒンジアームは上記カウルルーバの上方に位置し、上記ヒンジアームを介してカウルルーバの底壁に上方から衝突荷重が加えられたときに上記取付部が車体側の結合部から離脱してカウルルーバを下方へ移動せしめるようになす（請求項３）。カウルルーバはこれにヒンジアームが衝突することにより車体から離脱させることができる。   A rear end portion of the engine hood is rotatably supported by the vehicle body via a hinge arm, the hinge arm is located above the cowl louver, and a collision load is applied to the bottom wall of the cowl louver from above via the hinge arm. When added, the attachment portion is detached from the coupling portion on the vehicle body side to move the cowl louver downward (Claim 3). The cowl louver can be detached from the vehicle body when the hinge arm collides with the cowl louver.

上記係止部材として、頭部、軸部および軸端の係止爪部を備えた合成樹脂のクリップを用い、上記取付部の切欠き溝の溝幅を上記軸部の外径とほぼ同じが若干大きくする（請求項４）。係止部材として合成樹脂製のクリップが好適に用いられ得る。   As the locking member, a synthetic resin clip having a head portion, a shaft portion, and a shaft end locking claw portion is used, and the groove width of the notch groove of the mounting portion is substantially the same as the outer diameter of the shaft portion. Slightly larger (claim 4). A synthetic resin clip may be suitably used as the locking member.

本発明の実施形態を説明する。尚、カウルルーバまわりの構造は従来とほぼ同様な構造で、図４に示すように、車体のフロントウィンドウの下縁には左右のフロントピラーＰ間に閉断面をなす閉じカウルトップ３Ａが車幅方向に架設してあり、閉じカウルトップ３Ａの上面にはフロントガラス１の下縁を固着してこれを支持している。閉じカウルトップ３Ａの前側には一段低い位置に上方へ向けて開口する断面ほぼコ字形の開きカウルトップ３が設けてある。開きカウルトップ３は両端が、エンジンルームの左右両側壁の上縁の左右のエプロンアッパメンバ５の後部車内面に結合してあり、両エプロンアッパメンバ５の後部間に車幅方向に架設してある。そして開きカウルトップ３の上部には、その開口を覆うように合成樹脂製のカウルルーバ４が設置してある。カウルルーバ４は開きカウルトップ３の上部を覆うとともに、上方へ延設した後縁４３１でフロントガラス１の下縁を覆う。   An embodiment of the present invention will be described. The structure around the cowl louver is substantially the same as the conventional structure. As shown in FIG. 4, a closed cowl top 3A having a closed cross section between the left and right front pillars P is provided at the lower edge of the front window of the vehicle body in the vehicle width direction. The lower edge of the windshield 1 is fixed to and supported by the upper surface of the closed cowl top 3A. On the front side of the closed cowl top 3A, there is provided an open cowl top 3 having a substantially U-shaped cross section that opens upward at a lower position. Both ends of the opening cowl top 3 are connected to the inner surfaces of the rear parts of the left and right apron upper members 5 at the upper edges of the left and right side walls of the engine room, and are installed between the rear parts of the two apron upper members 5 in the vehicle width direction. is there. A cowl louver 4 made of synthetic resin is installed on the upper part of the open cowl top 3 so as to cover the opening. The cowl louver 4 covers the upper part of the open cowl top 3 and covers the lower edge of the windshield 1 with a rear edge 431 extending upward.

カウルルーバ４の上方にはエンジンフード２の後部が配置してある。エンジンフード２はヒンジアーム２１を介してエプロンアッパメンバ５の上面後端部にヒンジ結合され、エンジンルームの上部を開閉自在に設置してある。ヒンジアーム２１は基端がエプロンアッパメンバ５の上面後端部に設けたヒンジブラケットのヒンジ軸２０に上下方向回動自在に軸支され、上記基端から前方へ延び、先端がカウルルーバ４の内の底壁４１の側端の直上位置に設けてある。ヒンジアーム２１の先端はエンジンフード２の後端部の下面に結合してある。   A rear portion of the engine hood 2 is disposed above the cowl louver 4. The engine hood 2 is hinged to the rear end of the upper surface of the apron upper member 5 via a hinge arm 21, and the upper part of the engine room is installed to be openable and closable. The hinge arm 21 is pivotally supported by a hinge shaft 20 of a hinge bracket provided at the rear end of the upper surface of the apron upper member 5 so as to be pivotable in the vertical direction. The hinge arm 21 extends forward from the proximal end, and has a distal end within the cowl louver 4. It is provided at a position directly above the side end of the bottom wall 41 of the first wall. The front end of the hinge arm 21 is coupled to the lower surface of the rear end portion of the engine hood 2.

エプロンアッパメンバ５の上面には、断面ハット形のブラケット６０を介して車体のエンジンルーム車外面を構成するフェンダパネル６の上端フランジ部６１が結合してある。また開きカウルトップ３の下面にはその前縁部に、エンジンルームと車室とを仕切る縦壁状のダッシュパネル９の上縁が結合してある。開きカウルトップ３の下方には、車室の助手席前方位置でダッシュパネル９の車室面に空調ユニット９０が設けられ、開きカウルトップ３の下面にはこれを貫通してカウルトップ３内へ突出し、エアを取り込む空調ユニット９０のエア取入口９１が設けてある。   On the upper surface of the apron upper member 5, an upper end flange portion 61 of the fender panel 6 constituting the outer surface of the engine room of the vehicle body is coupled via a bracket 60 having a hat-shaped cross section. The lower edge of the open cowl top 3 is joined to the front edge of the upper edge of the dash panel 9 having a vertical wall shape that partitions the engine room and the vehicle compartment. Below the opening cowl top 3, an air conditioning unit 90 is provided on the passenger compartment surface of the dash panel 9 at a position in front of the passenger seat in the passenger compartment, and the lower surface of the opening cowl top 3 penetrates into the cowl top 3. An air intake 91 of the air conditioning unit 90 that protrudes and takes in air is provided.

以下、図１ないし図３に基づいて本発明のカウルルーバおよびその取付構造の詳細を説明する。カウルルーバ４は、底壁４１と、その前縁および後縁から屈曲して上方へ立ち上がる前壁４２と、後壁４３とで上方へ向けて開口する断面ほぼコ字形をなす。前壁４２には上縁から屈曲して前方へ突出するフランジ部４４が形成してあり、フランジ部４４にはその上面にゴム製のシール材７０が設けてある。シール材７０は、フランジ部４４に重ね合わせて固着した基端部７１の上部に中空状のシール部７２が一体成形してあり、シール部７２がエンジンフード２の後端部の下面に当接するようにしてある。   The details of the cowl louver and its mounting structure according to the present invention will be described below with reference to FIGS. The cowl louver 4 has a substantially U-shaped cross section that opens upward at a bottom wall 41, a front wall 42 that bends from its front and rear edges and rises upward, and a rear wall 43. The front wall 42 is formed with a flange portion 44 that is bent from the upper edge and protrudes forward, and the flange portion 44 is provided with a rubber seal material 70 on the upper surface thereof. In the sealing material 70, a hollow seal portion 72 is integrally formed on an upper portion of a base end portion 71 that is fixedly overlapped with the flange portion 44, and the seal portion 72 contacts the lower surface of the rear end portion of the engine hood 2. It is like that.

後壁４３には、その上縁から屈曲して後方へ突出してフロントガラス１の下縁を覆う後縁部４３１が形成してある。   The rear wall 43 is formed with a rear edge portion 431 which is bent from the upper edge and protrudes rearward to cover the lower edge of the windshield 1.

底壁４１はその車幅方向に延びる長さ寸法が、左右のエプロンアッパメンバ５の車内面間の間隔よりも若干小さく設定してある。底壁４１の車幅方向の端部には、端縁から屈曲して立ち上がる縦壁状の端壁４５が設けてある。端壁４５はその前縁が前壁４２の側縁とほぼ直角に交わるようにつながっている。端壁４５の後部には後壁４３との間に切欠きが形成してあり、該切欠きを介してエプロンアッパメンバ５の上面側からヒンジアーム２１の先端をカウルルーバ４内へ導いてある。尚、ヒンジアーム２１は基端から先端にかけて、先端側が車内側へ変位する緩やかなＺ字形に延設してあり、アーム中間の屈曲部が上記切欠きを経てアーム先端がカウルルーバ４内に配してある。   The length of the bottom wall 41 extending in the vehicle width direction is set to be slightly smaller than the distance between the inner surfaces of the left and right apron upper members 5. At the end of the bottom wall 41 in the vehicle width direction, a vertical wall-like end wall 45 that is bent and rises from the end edge is provided. The end wall 45 is connected so that the front edge thereof intersects the side edge of the front wall 42 at a substantially right angle. A notch is formed in the rear part of the end wall 45 between the rear wall 43 and the tip of the hinge arm 21 is guided into the cowl louver 4 from the upper surface side of the apron upper member 5 through the notch. The hinge arm 21 extends from the proximal end to the distal end in a gentle Z shape with the distal end being displaced toward the inside of the vehicle. The bent portion in the middle of the arm passes through the notch and the distal end of the arm is disposed in the cowl louver 4. It is.

カウルルーバ４の端壁４５には、その上縁から屈曲して車外側へ突出する平板状の取付部４６が形成してある。取付部４６の中央位置には後述の係止部材たるクリップ８０を貫通する取付孔４７が形成してある。また取付部４６には取付孔４７から車外側へ延び取付部４６の外縁に至る切欠き溝４８が形成してある。   The end wall 45 of the cowl louver 4 is formed with a flat mounting portion 46 that is bent from the upper edge thereof and protrudes to the outside of the vehicle. An attachment hole 47 that penetrates a clip 80 that is a locking member described later is formed at the center of the attachment portion 46. The mounting portion 46 is formed with a notch groove 48 extending from the mounting hole 47 to the vehicle outer side and reaching the outer edge of the mounting portion 46.

クリップ８０は合成樹脂製で、円盤上の頭部８１とその中心から下方へ突出する軸部８２と、軸部８２の下端に、軸部８２の外径よりも大径の下方へ向けて先細りのほぼ円錐状の係止爪部８３で構成してある。クリップ８０に対応して取付部４６の取付孔４７は、その径をクリップ８０の係止爪部８３の外径よりも若干小さくして係止爪部８３を圧入可能に形成してある。これに対して切欠き溝４８は、その溝幅をクリップ８０の軸部８２の外径とほぼ同じか若干大きく形成してある。   The clip 80 is made of a synthetic resin, and is tapered toward a lower portion having a larger diameter than the outer diameter of the shaft portion 82 at a lower end of the shaft portion 82 and a shaft portion 82 projecting downward from the center 81 of the disc. The substantially conical locking claw part 83 is comprised. The attachment hole 47 of the attachment portion 46 corresponding to the clip 80 has a diameter slightly smaller than the outer diameter of the engagement claw portion 83 of the clip 80 so that the engagement claw portion 83 can be press-fitted. On the other hand, the notch groove 48 is formed so that the groove width is substantially the same as or slightly larger than the outer diameter of the shaft portion 82 of the clip 80.

カウルルーバ４は、両端の取付部４６をフェンダパネル６の上端に固定し、左右のエプロンアッパメンバ５の後部の間に配設してある。尚、カウルルーバ４の左右両端の取付構造は同じで、図１、図２に一方の取付構造を示す。エプロンアッパメンバ５はインナパネル５ａとアウタパネル５ｂとで閉断面構造をなす。フェンダパネル６は車体外板を構成する一般部の上端から屈曲して下方へ折り返した折り返し部の下縁に車内側へ屈曲してほぼ水平に突出する平板状の上端フランジ部６１を備えている。フェンダパネル６は上端フランジ部６１をエプロンアッパメンバ５の上面に立設したブラケット６０の上面に重ね合わせてねじ部材（図略）により締結してある。   The cowl louver 4 has mounting portions 46 at both ends fixed to the upper end of the fender panel 6 and is disposed between the rear portions of the left and right apron upper members 5. Note that the mounting structures at the left and right ends of the cowl louver 4 are the same, and one mounting structure is shown in FIGS. The apron upper member 5 has a closed cross-sectional structure with the inner panel 5a and the outer panel 5b. The fender panel 6 is provided with a flat plate-like upper end flange portion 61 which is bent from the upper end of the general portion constituting the outer plate of the vehicle body and bent downward at the lower edge of the turned-up portion so as to protrude substantially horizontally. . The fender panel 6 is fastened with a screw member (not shown) with the upper end flange portion 61 superimposed on the upper surface of a bracket 60 erected on the upper surface of the apron upper member 5.

カウルルーバ４はその端壁４５の下端部を、インナパネル５ａからなるエプロンアッパメンバ５の車内面の上部に車幅方向に対向せしめて、シール材７４を介して当接せしめてある。また底壁４１の下面の前縁を開きカウルトップ３の前壁の上縁に重ねて開きカウルトップ３の上部開口を覆う（図３参照）。そして車外側に突出する取付部４６をフェンダパネル６の上端フランジ部６１に上方から重ね合わせるとともに、取付部４６の取付孔４７およびこれと同心の上端フランジ部６１の取付孔に上方からクリップ８０の係止爪部８３を圧入係止して、取付部４６を上端フランジ部６１に結合してある。   The cowl louver 4 has a lower end portion of an end wall 45 opposed to an upper portion of the inner surface of the apron upper member 5 formed of the inner panel 5a in the vehicle width direction, and is brought into contact with a seal member 74 therebetween. Further, the front edge of the lower surface of the bottom wall 41 is opened and overlapped with the upper edge of the front wall of the cowl top 3 to cover the upper opening of the cowl top 3 (see FIG. 3). Then, the mounting portion 46 protruding outward is overlapped with the upper end flange portion 61 of the fender panel 6 from above, and the clip 80 is mounted on the mounting hole 47 of the mounting portion 46 and the mounting hole of the upper end flange portion 61 concentric with the mounting hole 46 from above. The locking claw 83 is press-fitted and locked, and the mounting portion 46 is coupled to the upper end flange portion 61.

エンジンフード２の後端部に上から歩行者の肩や頭部が衝突して大きな衝突荷重（図２の白矢印Ｆ）が作用し、エンジンフード２の後端部の下面がシール部材７０を介してカウルルーバ４の前壁４２の上縁に衝き当たり、更にヒンジアーム２１の先端がカウルルーバ４の底壁４１に衝き当たってカウルルーバ４に衝突荷重が加えられると、カウルルーバ４の取付部４６が車内側へ引っ張られ（図２の矢印Ｇ）、これによりクリップ８０の軸部８２が切欠き溝４８を通って取付孔４７から抜け出し、取付部４６がフェンダパネル６の上端フランジ部６１から離脱する。そして、図３の仮想線で示すように、ヒンジアーム２１によりカウルルーバ４の底壁４１が開きカウルトップ３内へ押し下げられ、これに引っ張られるように前壁４２がカウルトップ３内へ落ち込むので、従来のようにエンジンフード２が底づきすることがなく、カウルルーバ４と一体に下方へ変形するので、この過程で衝撃を吸収緩和して歩行者のダメージを軽減することができる。   A pedestrian's shoulder or head collides with the rear end of the engine hood 2 from above, and a large collision load (white arrow F in FIG. 2) acts. When the top end of the front wall 42 of the cowl louver 4 hits the upper edge of the cowl louver 4 and the tip of the hinge arm 21 hits the bottom wall 41 of the cowl louver 4 and a collision load is applied to the cowl louver 4, Pulled inward (arrow G in FIG. 2), the shaft portion 82 of the clip 80 passes through the notch groove 48 and comes out of the mounting hole 47, and the mounting portion 46 is detached from the upper end flange portion 61 of the fender panel 6. 3, the bottom wall 41 of the cowl louver 4 is opened by the hinge arm 21 and pushed down into the cowl top 3, and the front wall 42 falls into the cowl top 3 so as to be pulled by the hinge arm 21, Since the engine hood 2 does not bottom out as in the prior art and is deformed downward integrally with the cowl louver 4, the impact can be absorbed and reduced in this process to reduce pedestrian damage.

カウルルーバ４はその両端とエプロンアッパメンバ５の車内面との間をシール材７４で塞いだが、シール材７４を省略して両端をエプロンアッパメンバ５の車内面にほぼ接触する程度に近接対向せしめるようにしてもよい。しかしながら、開きカウルトップ３の内部には空調ユニット９０のエア取入口９１があり、カウルルーバ４とエプロンアッパメンバ５の隙間から水等が開きカウルトップ３内に侵入すると、空調ユニット９０が吸い込むおそれがあるので、シール材７４によりカウルルーバ４とエプロンアッパメンバ５の隙間を塞ぐことが望ましい。   The cowl louver 4 is closed between the both ends thereof and the inner surface of the apron upper member 5 with the sealing material 74, but the sealing material 74 is omitted so that both ends are close to each other so as to substantially contact the inner surface of the apron upper member 5. It may be. However, there is an air intake 91 of the air conditioning unit 90 inside the open cowl top 3, and if air or the like enters from the gap between the cowl louver 4 and the apron upper member 5 and enters the cowl top 3, the air conditioning unit 90 may inhale. Therefore, it is desirable to close the gap between the cowl louver 4 and the apron upper member 5 with the sealing material 74.

また上述の実施形態は、カウルルーバ４の取付部４６をフェンダパネル６の上端フランジ部６１に結合したが、直接、エプロンアッパ５の上面に結合するようにしても同様な作用効果が得られる。   Further, in the above-described embodiment, the attachment portion 46 of the cowl louver 4 is coupled to the upper end flange portion 61 of the fender panel 6, but similar effects can be obtained by coupling directly to the upper surface of the apron upper 5.

本発明のカウルルーバの取付構造の概略を示す要部斜視図である。It is a principal part perspective view which shows the outline of the attachment structure of the cowl louver of this invention. 図１のII−II線に沿う位置で、衝突荷重によるカウルルーバの変形を示す断面図である。It is sectional drawing which shows the deformation | transformation of the cowl louver by the collision load in the position which follows the II-II line | wire of FIG. 図２のII−II線に沿う位置で、衝突荷重によるカウルルーバの変形を示す断面図である。It is sectional drawing which shows the deformation | transformation of the cowl louver by the collision load in the position which follows the II-II line | wire of FIG. 自動車のカウルルーバまわりの構造の概略を示す断面図である。It is sectional drawing which shows the outline of the structure around the cowl louver of a motor vehicle. 図１に対応する従来のカウルルーバの取付構造の要部斜視図である。It is a principal part perspective view of the attachment structure of the conventional cowl louver corresponding to FIG. 図２に対応する従来のカウルルーバの取付構造の断面図である。FIG. 3 is a cross-sectional view of a conventional cowl louver mounting structure corresponding to FIG. 2.

符号の説明Explanation of symbols

１ フロントガラス
２ エンジンフード
２１ ヒンジアーム
３ 開きカウルトップ（カウルトップ）
４ カウルルーバ
４１ 底壁
４５ 端壁
４６ 取付部
４７ 取付孔
４８ 切欠き溝
５ エプロンアッパメンバ
６ フェンダパネル
６０ ブラケット
６１ 上端フランジ部
８０ クリップ（係止部材）
８１ 頭部
８２ 軸部
８３ 係止爪部 1 Windshield 2 Engine Hood 21 Hinge Arm 3 Opening Cowl Top (Cowl Top)
4 Cowl louver 41 Bottom wall 45 End wall 46 Mounting part 47 Mounting hole 48 Notch groove 5 Apron upper member 6 Fender panel 60 Bracket 61 Upper flange part
80 clips (locking members)
81 Head 82 Shaft 83 Locking claw

Claims (4)

車体のフロントガラスの下縁に沿って車幅方向に延在し、エンジンフードの後端部の下方位置で、カウルトップを覆い隠すように設けられた合成樹脂のカウルルーバであって、左右両端が、エンジンルームの側壁上縁に沿って延びる左右のエプロンアッパメンバの後部に結合された車両のカウルルーバの取付構造において、
カウルルーバの車幅方向の長さ寸法を、上記左右の両エプロンアッパメンバの後部間の間隔よりも小さい寸法に形成して、カウルルーバを両エプロンアッパメンバの後部間に配し、
カウルルーバにはその左右両端から車外側へ突出する板状の取付部を設け、該取付部を上記エプロンアッパメンバの上面に重ね合わせ、上記取付部およびエプロンアッパメンバの上面に設けた取付孔に係止部材を貫通させて上記取付部を上記エプロンアッパメンバの上面に結合せしめるようになし、
上記取付部には、その取付孔から取付部の外縁に通じる切欠き溝を形成し、カウルルーバに上記エンジンフードを介して上方から衝突荷重が加えられたときに上記取付部が上記エプロンアッパメンバから離脱してカウルルーバを下方へ移動せしめるようになした車両のカウルルーバの取付構造。 A synthetic resin cowl louver that extends in the vehicle width direction along the lower edge of the windshield of the vehicle body and covers the cowl top at a position below the rear end of the engine hood. In the mounting structure of the cowl louver of the vehicle coupled to the rear part of the left and right apron upper members extending along the upper edge of the side wall of the engine room,
The length of the cowl louver in the vehicle width direction is formed to be smaller than the distance between the rear portions of the left and right apron upper members, and the cowl louver is disposed between the rear portions of both apron upper members.
The cowl louver is provided with a plate-like mounting portion that protrudes from the left and right ends of the cowl louver. The mounting portion is superimposed on the upper surface of the apron upper member, and is engaged with mounting holes provided on the upper surface of the mounting portion and the apron upper member. Through the stop member so that the mounting part is coupled to the upper surface of the apron upper member;
A notch groove is formed in the mounting portion from the mounting hole to the outer edge of the mounting portion, and when a collision load is applied to the cowl louver from above via the engine hood, the mounting portion is separated from the apron upper member. A structure for mounting a cowl louver of a vehicle that is disengaged to move the cowl louver downward. 上記カウルルーバを、上部が開口する断面ほぼコ字形に形成し、
上記取付孔および切欠き溝を設けた取付部を、上記カウルルーバの両端の縦壁状の端壁の上縁から車外側へ向けて突出せしめ、
上記取付部を、上記エプロンアッパメンバの上面に立設したブラケットを介してエプロンアッパメンバに支持固定されたフェンダパネルの上端フランジ部に上記係止部材により結合せしめた請求項１に記載の車両のカウルルーバの取付構造。 The cowl louver is formed in a substantially U-shaped cross section with an open top,
The mounting portion provided with the mounting hole and the notch groove is protruded from the upper edge of the vertical wall-shaped end wall at both ends of the cowl louver toward the outside of the vehicle,
2. The vehicle according to claim 1, wherein the attachment portion is coupled to the upper end flange portion of the fender panel supported and fixed to the apron upper member via a bracket standing on the upper surface of the apron upper member by the locking member. Cowl louver mounting structure. 上記エンジンフードの後端部はヒンジアームを介して車体に回動可能に支持され、上記ヒンジアームは上記カウルルーバの上方に位置し、上記ヒンジアームを介してカウルルーバの底壁に上方から衝突荷重が加えられたときに上記取付部が車体側との結合部から離脱してカウルルーバを下方へ移動せしめる請求項１または２に記載の車両のカウルルーバの取付構造。   A rear end portion of the engine hood is rotatably supported by the vehicle body via a hinge arm, the hinge arm is located above the cowl louver, and a collision load is applied to the bottom wall of the cowl louver from above via the hinge arm. 3. The vehicle cowl louver mounting structure according to claim 1 or 2, wherein, when applied, the mounting portion is detached from the coupling portion with the vehicle body side to move the cowl louver downward. 上記係止部材として、頭部、軸部および軸端の係止爪部を備えた合成樹脂のクリップを用い、上記取付部の切欠き溝の溝幅を上記軸部の外径とほぼ同じか若干大きくした請求項１ないし３に記載の車両のカウルルーバの取付構造。   As the locking member, a synthetic resin clip having a head, a shaft portion, and a shaft end locking claw portion is used, and whether the groove width of the notch groove of the mounting portion is substantially the same as the outer diameter of the shaft portion. 4. A structure for mounting a cowl louver for a vehicle according to claim 1, wherein the structure is slightly larger.
JP2006163047A 2006-06-13 2006-06-13 Cowl louver mounting structure Expired - Fee Related JP4762059B2 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2928335A1 (en) * 2008-03-07 2009-09-11 Peugeot Citroen Automobiles Sa Body shell structure for motor vehicle, has cowl collector comprising central part deformed under thrust effect exerted towards bottom by rear edge of bonnet, in case of impact of head of pedestrian on bonnet
JP2009255788A (en) * 2008-04-18 2009-11-05 Suzuki Motor Corp Cowl panel fixing structure of vehicle
JP2011088476A (en) * 2009-10-20 2011-05-06 Daikyonishikawa Corp Exterior resin panel of automobile
JP2013203138A (en) * 2012-03-27 2013-10-07 Daihatsu Motor Co Ltd Shock absorbing structure of vehicle front body

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002046649A (en) * 2000-08-02 2002-02-12 Fuji Heavy Ind Ltd Cowl panel-front bulkhead structure
JP2004345544A (en) * 2003-05-23 2004-12-09 Nissan Motor Co Ltd Cowl cover structure

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002046649A (en) * 2000-08-02 2002-02-12 Fuji Heavy Ind Ltd Cowl panel-front bulkhead structure
JP2004345544A (en) * 2003-05-23 2004-12-09 Nissan Motor Co Ltd Cowl cover structure

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2928335A1 (en) * 2008-03-07 2009-09-11 Peugeot Citroen Automobiles Sa Body shell structure for motor vehicle, has cowl collector comprising central part deformed under thrust effect exerted towards bottom by rear edge of bonnet, in case of impact of head of pedestrian on bonnet
JP2009255788A (en) * 2008-04-18 2009-11-05 Suzuki Motor Corp Cowl panel fixing structure of vehicle
JP2011088476A (en) * 2009-10-20 2011-05-06 Daikyonishikawa Corp Exterior resin panel of automobile
JP2013203138A (en) * 2012-03-27 2013-10-07 Daihatsu Motor Co Ltd Shock absorbing structure of vehicle front body

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