JP2007131198A - Engine under-cover mounting structure - Google Patents

Engine under-cover mounting structure Download PDF

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JP2007131198A
JP2007131198A JP2005326999A JP2005326999A JP2007131198A JP 2007131198 A JP2007131198 A JP 2007131198A JP 2005326999 A JP2005326999 A JP 2005326999A JP 2005326999 A JP2005326999 A JP 2005326999A JP 2007131198 A JP2007131198 A JP 2007131198A
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cover
vehicle
front cover
mounting hole
end portion
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JP4735200B2 (en
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Naoyuki Ishii
直行 石井
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Toyota Motor Corp
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Toyota Motor Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To discharge a large amount of water intruded into a vehicle while ensuring aerodynamic performance. <P>SOLUTION: A rear end 14B of a front cover 14 of an engine under-cover 10 is superposed on a lower side of a front end 16A of a rear cover 16 and a clip 22 is penetrated to a mounting hole 20 of the front cover 14 and a mounting hole 24 of the rear cover 16 from a lower side of the vehicle. A diameter of the mounting hole 20 of the front cover becomes larger than a diameter of the mounting hole of the rear cover 16 and further, a portion between adjacent notches 30 formed on a peripheral edge of the mounting hole 20 of the front cover 14 becomes a deformation part 32. Therefore, when the rear end 14B of the front cover 14 is pressed by a large amount of water intruded into an engine room, The rear end 14B of the front cover 14 is removed from an engagement part 22A of the clip 22 and an opening for removing water is formed in a space to the rear cover 16. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は自動車等の車両に取付けられるエンジンアンダカバーの取付構造に関する。   The present invention relates to a mounting structure for an engine undercover that is mounted on a vehicle such as an automobile.

従来から、車両の下面を覆うエンジンアンダカバーが知られている（例えば、特許文献１参照）。この技術では、エンジンアンダカバーに形成した水抜き穴を通してエンジンルーム内に浸入した水を車外に排水している。
実公平２−３９９０５号 2. Description of the Related Art Conventionally, an engine undercover that covers a lower surface of a vehicle is known (see, for example, Patent Document 1). In this technique, water that has entered the engine room is drained outside the vehicle through a drain hole formed in the engine undercover.
Actuality 2-39905

しかしながら、特許文献１のエンジンアンダカバー取付構造では、水抜き穴が小さい場合には、エンジンルーム内に大量の水が浸入した際に排水に長い時間を要する。また、水抜き穴が大きい場合には、空力性能が低下する。   However, in the engine under cover mounting structure disclosed in Patent Document 1, when a water drain hole is small, it takes a long time for drainage when a large amount of water enters the engine room. In addition, when the drain hole is large, the aerodynamic performance is degraded.

本発明は上記事実を考慮し、空力性能を確保しつつ車内に浸入した大量の水を排水可能なエンジンアンダカバー取付構造を提供することが目的である。   An object of the present invention is to provide an engine under cover mounting structure capable of draining a large amount of water that has entered the vehicle while ensuring aerodynamic performance in consideration of the above facts.

請求項１記載の本発明のエンジンアンダカバー取付構造は、エンジンアンダカバーの車両前方側の部位を構成し車両へ取付けられるフロントカバーと、エンジンアンダカバーの車両後方側の部位を構成し車両へ取付けられるリヤカバーと、前記フロントカバーの後部を前記リヤカバーの前部へ取付け、前記フロントカバーの上面側に水が浸入した場合に前記水の押圧力によって、前記フロントカバーの後部を前記リヤカバーの前部から離脱させて前記リヤカバーとの間に水抜き用の開口部を形成する取付手段と、を有することを特徴とする。   The engine undercover mounting structure according to the first aspect of the present invention includes a front cover that constitutes a portion of the engine undercover on the vehicle front side and is attached to the vehicle, and a portion of the engine undercover on the vehicle rear side that is attached to the vehicle. And a rear portion of the front cover is attached to a front portion of the rear cover, and when water enters the upper surface side of the front cover, the rear portion of the front cover is removed from the front portion of the rear cover by the pressing force of the water. And attaching means for forming a water drain opening between the rear cover and the rear cover.

車両の下面を覆うエンジンアンダカバーがエンジンアンダカバーの車両前方側の部位を構成し車両へ取付けられるフロントカバーと、エンジンアンダカバーの車両後方側の部位を構成し車両へ取付けられるリヤカバーとを有しており、取付手段によって、フロントカバーの後部がリヤカバーの前部へ取付けられている。この結果、フロントカバーとリヤカバーとによって車両の下面を連続して覆うことができるため、空力性能が確保される。また、フロントカバーの上面側に大量の水が浸入した場合には、水の押圧力によって、取付手段が、フロントカバーの後部をリヤカバーの前部から離脱させてリヤカバーとの間に水抜き用の開口部を形成する。このため、フロントカバーの上面側に浸入した大量の水が開口部から車外へ排水される。   An engine under cover that covers the lower surface of the vehicle has a front cover that constitutes a portion of the engine under cover on the vehicle front side and is attached to the vehicle, and a rear cover that constitutes a portion of the engine under cover on the vehicle rear side and is attached to the vehicle. The rear portion of the front cover is attached to the front portion of the rear cover by the attaching means. As a result, since the lower surface of the vehicle can be continuously covered by the front cover and the rear cover, aerodynamic performance is ensured. In addition, when a large amount of water has entered the upper surface of the front cover, the attachment means causes the rear portion of the front cover to separate from the front portion of the rear cover by water pressing force, and drains water from the rear cover. An opening is formed. For this reason, a large amount of water that has entered the upper surface of the front cover is drained from the opening to the outside of the vehicle.

請求項２記載の本発明は、請求項１記載のエンジンアンダカバー取付構造において、前記取付手段は、前記フロントカバーに形成された取付孔に挿通され、下部に前記フロントカバーを支持する支持部が設けられており、前記フロントカバーの取付孔の周縁部には変形することで前記支持部を通過可能な変形部が形成されていることを特徴とする。   According to a second aspect of the present invention, in the engine undercover mounting structure according to the first aspect, the mounting means is inserted through a mounting hole formed in the front cover, and a support portion for supporting the front cover is provided at a lower portion. It is provided, and a deforming portion that can pass through the support portion by being deformed is formed at a peripheral portion of the mounting hole of the front cover.

取付手段がフロントカバーに形成された取付孔に挿通されており、下部に設けられた支持部がフロントカバーを支持している。また、フロントカバーの上面側に大量の水が浸入した場合には、水の押圧力によって、フロントカバーの取付孔の周縁部に形成された変形部が変形することで、フロントカバーの取付孔が取付手段の支持部を通過する。このため、簡単な構成で水抜き用の開口部を形成できる。   The attachment means is inserted through an attachment hole formed in the front cover, and a support portion provided at the lower portion supports the front cover. In addition, when a large amount of water enters the upper surface side of the front cover, the deformed portion formed at the peripheral edge of the mounting hole of the front cover is deformed by the pressing force of the water, so that the mounting hole of the front cover is deformed. Passes through the support of the attachment means. For this reason, the opening part for draining can be formed with a simple structure.

請求項３記載の本発明は、請求項１に記載のエンジンアンダカバー取付構造において、前記取付手段は、前記リヤカバーの前部と前記フロントカバーの後部を車両に取付けており、前記フロントカバーの後部の取付保持力は前記リヤカバーの前部の取付保持力より小さいことを特徴とする。   According to a third aspect of the present invention, in the engine undercover mounting structure according to the first aspect, the mounting means mounts a front portion of the rear cover and a rear portion of the front cover to a vehicle, and a rear portion of the front cover. The attachment holding force of the rear cover is smaller than the attachment holding force of the front portion of the rear cover.

取付手段がリヤカバーの前部とフロントカバーの後部を車両に取付けており、フロントカバーの後部の取付保持力がリヤカバーの前部の取付保持力より小さい。このため、取付手段の数を少なくできると共にフロントカバーの上面側に大量の水が浸入した場合には、水の押圧力によって、フロントカバーの後部が車両から確実に離脱する。   The attachment means attaches the front portion of the rear cover and the rear portion of the front cover to the vehicle, and the attachment holding force at the rear portion of the front cover is smaller than the attachment holding force at the front portion of the rear cover. For this reason, the number of attachment means can be reduced, and when a large amount of water enters the upper surface side of the front cover, the rear portion of the front cover is reliably detached from the vehicle by the pressing force of the water.

請求項４記載の本発明は、請求項１に記載のエンジンアンダカバー取付構造において、前記取付手段は、前記フロントカバーの後部と前記リヤカバーの前部とを貫通する軸部材であることを特徴とする。   According to a fourth aspect of the present invention, in the engine undercover mounting structure according to the first aspect, the mounting means is a shaft member that passes through a rear portion of the front cover and a front portion of the rear cover. To do.

取付手段がフロントカバーの後部とリヤカバーの前部とを貫通する軸部材であるため構成が簡単になる。   Since the attachment means is a shaft member that passes through the rear portion of the front cover and the front portion of the rear cover, the configuration is simplified.

請求項１記載の本発明は、空力性能を確保しつつ車内に浸入した大量の水を排水できる。   The present invention according to claim 1 can drain a large amount of water entering the vehicle while ensuring aerodynamic performance.

請求項２記載の本発明は、簡単な構成で車内に浸入した大量の水を確実に排水できる。   The present invention according to claim 2 can reliably drain a large amount of water that has entered the vehicle with a simple configuration.

請求項３記載の本発明は、取付手段の数を少なくできると共に車内に浸入した大量の水を確実に排水できる。   According to the third aspect of the present invention, the number of attachment means can be reduced and a large amount of water that has entered the vehicle can be reliably drained.

請求項４記載の本発明は、簡単な構成で車内に浸入した大量の水を確実に排水できる。   The present invention according to claim 4 can reliably drain a large amount of water that has entered the vehicle with a simple configuration.

本発明におけるエンジンアンダカバー取付構造の一実施形態を図１〜図５に従って説明する。   An embodiment of an engine under cover mounting structure according to the present invention will be described with reference to FIGS.

なお、図中矢印ＦＲは車両前方方向を、矢印ＵＰは車両上方方向を、矢印ＩＮは車幅内側方向を示す。   In the figure, the arrow FR indicates the vehicle front direction, the arrow UP indicates the vehicle upward direction, and the arrow IN indicates the vehicle width inside direction.

図５に示される如く、本実施形態における自動車車体の前部の下面側にはエンジンアンダカバー１０が配置されており、エンジンアンダカバー１０は、車体前部に形成されたエンジンルームの下面を覆っている。   As shown in FIG. 5, an engine under cover 10 is disposed on the lower surface side of the front portion of the vehicle body in the present embodiment, and the engine under cover 10 covers the lower surface of the engine room formed in the front portion of the vehicle body. ing.

エンジンアンダカバー１０はエンジンアンダカバー１０の車両前方側の部位（前部）を構成するフロントカバー１４と、エンジンアンダカバー１０の車両後方側の部位（後部）を構成するリヤカバー１６とを備えている。フロントカバー１４の車両下方側から見た形状は、前端部１４Ａが広幅で、後端部１４Ｂが狭幅となった略台形状になっている。また、フロントカバー１４の前端部１４Ａには、車幅方向に沿って所定の間隔で複数の取付孔１８が形成されており、フロントカバー１４の後端部１４Ｂには、車幅方向に沿って所定の間隔で複数の取付孔２０が形成されている。   The engine undercover 10 includes a front cover 14 that constitutes a vehicle front side portion (front portion) of the engine undercover 10 and a rear cover 16 that constitutes a vehicle rear side portion (rear portion) of the engine undercover 10. . The shape of the front cover 14 viewed from the vehicle lower side is a substantially trapezoidal shape in which the front end portion 14A is wide and the rear end portion 14B is narrow. A plurality of mounting holes 18 are formed in the front end portion 14A of the front cover 14 at predetermined intervals along the vehicle width direction, and the rear end portion 14B of the front cover 14 extends along the vehicle width direction. A plurality of mounting holes 20 are formed at predetermined intervals.

一方、リヤカバー１６の車両下方側から見た形状は、前端部１６Ａが広幅で、後端部１６Ｂが狭幅となった車幅方向に長い略台形状になっており、リヤカバー１６の前端部１６Ａの幅は、フロントカバー１４の後端部１４Ｂの幅と略等しくなっている。また、リヤカバー１６はフロントカバー１４に比べて車両前後方向の長さが小さくなっており、リヤカバー１６はフロントカバー１４に比べて小さくなっている。   On the other hand, the shape of the rear cover 16 viewed from the vehicle lower side is substantially trapezoidal in the vehicle width direction with the front end portion 16A being wide and the rear end portion 16B being narrow, and the front end portion 16A of the rear cover 16 is wide. Is substantially equal to the width of the rear end portion 14B of the front cover 14. Further, the rear cover 16 is shorter in the longitudinal direction of the vehicle than the front cover 14, and the rear cover 16 is smaller than the front cover 14.

リヤカバー１６の前端部１６Ａには、車幅方向に沿って所定の間隔で複数の取付孔２４が形成されており、リヤカバー１６の後端部１６Ｂには、車幅方向に沿って所定の間隔で複数の取付孔２６が形成されている。   A plurality of mounting holes 24 are formed in the front end portion 16A of the rear cover 16 at predetermined intervals along the vehicle width direction, and the rear end portion 16B of the rear cover 16 is formed at predetermined intervals along the vehicle width direction. A plurality of mounting holes 26 are formed.

図１に示される如く、フロントカバー１４の後端部１４Ｂは、リヤカバー１６の前端部１６Ａの下側に重ねられており、フロントカバー１４の取付孔２０はリヤカバー１６の取付孔２４の下側に重ねられている。また、フロントカバー１４の取付孔２０とリヤカバー１６の取付孔２４とには、取付手段である軸部材としてのクリップ２２が車両下方側から挿通されている。即ち、クリップ２２はフロントカバー１４の後端部１４Ｂとリヤカバー１６の前端部１６Ａとを車両下方側から車両上方側へ貫通しており、クリップ２２はフロントカバー１４の後部をリヤカバー１６の前部に取付けている。   As shown in FIG. 1, the rear end portion 14B of the front cover 14 overlaps the lower side of the front end portion 16A of the rear cover 16, and the mounting hole 20 of the front cover 14 is located below the mounting hole 24 of the rear cover 16. It is piled up. Further, a clip 22 as a shaft member, which is an attachment means, is inserted into the attachment hole 20 of the front cover 14 and the attachment hole 24 of the rear cover 16 from the vehicle lower side. That is, the clip 22 penetrates the rear end portion 14B of the front cover 14 and the front end portion 16A of the rear cover 16 from the vehicle lower side to the vehicle upper side, and the clip 22 extends the rear portion of the front cover 14 to the front portion of the rear cover 16. It is installed.

クリップ２２の上端部には、複数の係止部２２Ａが弾性変形可能に形成されている。これらの係止部２２Ａは、車両側の取付部となるクロスメンバメンバ２５の前フランジ２５Ａに形成された取付孔２８を弾性変形することで車両下方側から車両上方側へ通過可能となっており、取付孔２８を通過後、取付孔２８の周縁部の上側面に係止されるようになっている。   A plurality of locking portions 22A are formed at the upper end of the clip 22 so as to be elastically deformable. These locking portions 22A can pass from the lower side of the vehicle to the upper side of the vehicle by elastically deforming the mounting holes 28 formed in the front flange 25A of the cross member member 25 serving as the mounting portion on the vehicle side. After passing through the mounting hole 28, it is locked to the upper side surface of the peripheral edge of the mounting hole 28.

また、クリップ２２の下部（下端部）には円盤状の支持部２２Ｂが形成されており、この支持部２２Ｂがフロントカバー１４の取付孔２０の周縁部を車両下方側から支持している。   Further, a disk-like support portion 22B is formed at the lower portion (lower end portion) of the clip 22, and this support portion 22B supports the peripheral portion of the mounting hole 20 of the front cover 14 from the vehicle lower side.

図１及び図４に示される如く、クリップ２２の支持部２２Ｂの直径Ｒ１はフロントカバー１４の取付孔２０の直径Ｒ２より大きくなっており、フロントカバー１４の取付孔２０の直径Ｒ２はリヤカバー１６の取付孔２４の直径Ｒ３より大きくなっている。更に、リヤカバー１６の取付孔２４の直径Ｒ３は、クロスメンバメンバ２５の取付孔２８の直径Ｒ４より大きくなっている（Ｒ１＞Ｒ２＞Ｒ３＞Ｒ４）。   As shown in FIGS. 1 and 4, the diameter R 1 of the support portion 22 B of the clip 22 is larger than the diameter R 2 of the mounting hole 20 of the front cover 14, and the diameter R 2 of the mounting hole 20 of the front cover 14 is The mounting hole 24 is larger than the diameter R3. Further, the diameter R3 of the mounting hole 24 of the rear cover 16 is larger than the diameter R4 of the mounting hole 28 of the cross member member 25 (R1> R2> R3> R4).

また、フロントカバー１４の取付孔２０の周縁部には、周方向に所定の間隔で三角形状の切欠３０が半径方向外方へ向かって形成されており、隣接する切欠３０の間の各部位が変形部３２となっている。   In addition, triangular notches 30 are formed radially outward at predetermined intervals in the peripheral portion of the mounting hole 20 of the front cover 14, and each portion between adjacent notches 30 is formed. A deforming portion 32 is formed.

即ち、クリップ２２は、リヤカバー１６の前端部１６Ａとフロントカバー１４の後端部１４Ｂをクロスメンバメンバ２５のフランジ２５Ａに取付けており、フロントカバー１４の後端部１４Ｂの車両への取付保持力Ｆ１は、リヤカバー１６の車両への前端部１６Ａの取付保持力Ｆ２より小さくなっている。また、クリップ２２の車両への取付保持力Ｆ３はリヤカバー１６の前端部１６Ａの車両への取付保持力Ｆ２より大きくなっている（Ｆ３＞Ｆ２＞Ｆ１）。   That is, the clip 22 has the front end portion 16A of the rear cover 16 and the rear end portion 14B of the front cover 14 attached to the flange 25A of the cross member member 25, and the mounting and holding force F1 of the rear end portion 14B of the front cover 14 to the vehicle. Is smaller than the attachment holding force F2 of the front end portion 16A of the rear cover 16 to the vehicle. Further, the attachment holding force F3 of the clip 22 to the vehicle is larger than the attachment holding force F2 of the front end portion 16A of the rear cover 16 to the vehicle (F3> F2> F1).

なお、取付保持力とは、リヤカバー１６の前端部１６Ａ又はフロントカバー１４の後端部１４Ｂがクリップ２２の支持部２２Ｂから離脱するために必要な車両下方への荷重である。   The attachment holding force is a load below the vehicle that is necessary for the front end portion 16A of the rear cover 16 or the rear end portion 14B of the front cover 14 to be detached from the support portion 22B of the clip 22.

従って、フロントカバー１４の後端部１４Ｂがエンジンルーム内に浸入した大量の水によって、車両下方（図３の矢印Ａ方向）へ押圧され、フロントカバー１４の後端部１４Ｂに取付保持力Ｆ１より大きな力が作用した場合には、フロントカバー１４の後端部１４Ｂに形成された取付孔２０の変形部３２が塑性変形又は弾性変形することで、取付孔２０が広がり、フロントカバー１４の後端部１４Ｂがクリップ２２の支持部２２Ｂから離脱して、下方へ移動するようになっている。   Accordingly, the rear end portion 14B of the front cover 14 is pressed downward (in the direction of arrow A in FIG. 3) by a large amount of water that has entered the engine room, and the rear end portion 14B of the front cover 14 is attached to the rear end portion 14B by the mounting holding force F1. When a large force is applied, the deformation portion 32 of the attachment hole 20 formed in the rear end portion 14B of the front cover 14 is plastically deformed or elastically deformed, so that the attachment hole 20 is expanded and the rear end of the front cover 14 is expanded. The portion 14B is detached from the support portion 22B of the clip 22 and moves downward.

この時、水の押圧力（水圧）によって、図３に二点鎖線で示される如く、リヤカバー１６が下方へ移動しても、クリップ２２の支持部２２Ｂがリヤカバー１６の取付孔２４の周縁部を車両下方側から支持するため、リヤカバー１６をクリップ２２に支持された状態に保持できるようになっている。   At this time, even if the rear cover 16 moves downward as shown by a two-dot chain line in FIG. 3 due to the pressing force of water (water pressure), the support portion 22B of the clip 22 moves the peripheral portion of the mounting hole 24 of the rear cover 16. Since the rear cover 16 is supported from the lower side of the vehicle, the rear cover 16 can be held in a state supported by the clip 22.

図２に示される如く、フロントカバー１４の前端部１４Ａに形成された各取付孔１８には、ボルトやタッピングスクリュウからなる締結部材４０が車両下方側から挿入されており、これらの締結部材４０は、ラジエータサポートロア等の車両側のフロントカバー取付部４２に締結されている。従って、フロントカバー１４の前端部１４Ａは車両側に強固に固定されている。   As shown in FIG. 2, fastening members 40 made of bolts and tapping screws are inserted into the mounting holes 18 formed in the front end portion 14 </ b> A of the front cover 14 from the lower side of the vehicle. Fastened to a vehicle-side front cover mounting portion 42 such as a radiator support lower. Accordingly, the front end portion 14A of the front cover 14 is firmly fixed to the vehicle side.

なお、車両下面の空力性能を向上するため、平板状とされたフロントカバー１４の前後方向中間部１４Ｃに対してフロントカバー１４の前端部１４Ａと後端部１４Ｂは車両上方へ凹んでいる。   In order to improve the aerodynamic performance of the lower surface of the vehicle, the front end portion 14A and the rear end portion 14B of the front cover 14 are recessed upward in the vehicle with respect to the front-rear direction intermediate portion 14C of the flat front cover 14.

また、リヤカバー１６の後端部１６Ｂに形成された各取付孔２６には、ボルトやタッピングスクリュウからなる締結部材４４が車両下方側から挿入されており、これらの締結部材４４は、クロスメンバメンバ２５の後部２５Ｂに締結されている。従って、リヤカバー１６の後端部１６Ｂは車両側に強固に固定されている。   A fastening member 44 made of a bolt or a tapping screw is inserted into each mounting hole 26 formed in the rear end portion 16B of the rear cover 16 from the lower side of the vehicle. These fastening members 44 are cross member members 25. Fastened to the rear portion 25B. Therefore, the rear end portion 16B of the rear cover 16 is firmly fixed to the vehicle side.

なお、車両下面の空力性能を向上するため、平板状とされたリヤカバー１６の前後方向中間部１６Ｃに対してリヤカバー１６の前端部１６Ａと後端部１６Ｂは車両上方へ凹んでいる。   In order to improve the aerodynamic performance of the lower surface of the vehicle, the front end portion 16A and the rear end portion 16B of the rear cover 16 are recessed upward of the vehicle with respect to the longitudinal middle portion 16C of the flat rear cover 16.

次に、本実施形態の作用を説明する。   Next, the operation of this embodiment will be described.

本実施形態では、エンジンアンダカバー１０を車体へ組付ける際に、フロントカバー１４の後端部１４Ｂをリヤカバー１６の前端部１６Ａの下側に重ね、フロントカバー１４の取付孔２０、リヤカバー１６の取付孔２４及びクロスメンバメンバ２５の取付孔２８にクリップ２２を車両下方側から挿通し、クリップ２２の係止部２２Ａをクロスメンバメンバ２５に形成された取付孔２６の周縁部に係止させる。   In this embodiment, when the engine under cover 10 is assembled to the vehicle body, the rear end portion 14B of the front cover 14 is overlapped with the lower side of the front end portion 16A of the rear cover 16, and the mounting holes 20 of the front cover 14 and the mounting of the rear cover 16 are performed. The clip 22 is inserted into the hole 24 and the mounting hole 28 of the cross member member 25 from the vehicle lower side, and the locking portion 22A of the clip 22 is locked to the peripheral portion of the mounting hole 26 formed in the cross member member 25.

この結果、フロントカバー１４とリヤカバー１６とによってエンジンルームの下面を連続して覆うことができるため、車両の空力性能が確保される。また、エンジンアンダカバー１０に水抜き用の孔を形成しないため、水抜き用の孔からの音漏れを無くすことができ、車両の車外・車室内騒音要求性能を低下させることも無い。更に、フロントカバー１４の後端部１４Ｂをリヤカバー１６の前端部１６Ａの下側に重ねクリップ２２で車両に固定するため、クリップ２２の数を少なくできる。   As a result, the front cover 14 and the rear cover 16 can continuously cover the lower surface of the engine room, so that the aerodynamic performance of the vehicle is ensured. Further, since no drainage hole is formed in the engine undercover 10, sound leakage from the drainage hole can be eliminated, and the vehicle exterior / interior noise requirement performance is not lowered. Furthermore, since the rear end portion 14B of the front cover 14 is overlapped below the front end portion 16A of the rear cover 16 and fixed to the vehicle with the clips 22, the number of clips 22 can be reduced.

一方、クリップ２２の支持部２２Ｂの直径Ｒ１はフロントカバー１４の取付孔２０の直径Ｒ２より大きくなっており、フロントカバー１４の取付孔２０の直径Ｒ２はリヤカバー１６の取付孔２４の直径Ｒ３より大きくなっている。また、リヤカバー１６の取付孔２４の直径Ｒ３は、クロスメンバメンバ２５の取付孔２８の直径Ｒ４より大きくなっている（Ｒ１＞Ｒ２＞Ｒ３＞Ｒ４）。更に、フロントカバー１４の取付孔２０の周縁部には、周方向に所定の間隔で三角形状の切欠３０が半径方向外方へ向かって形成されており、隣接する切欠３０の間の部位が変形部３２となっている。   On the other hand, the diameter R1 of the support portion 22B of the clip 22 is larger than the diameter R2 of the mounting hole 20 of the front cover 14, and the diameter R2 of the mounting hole 20 of the front cover 14 is larger than the diameter R3 of the mounting hole 24 of the rear cover 16. It has become. Further, the diameter R3 of the mounting hole 24 of the rear cover 16 is larger than the diameter R4 of the mounting hole 28 of the cross member member 25 (R1> R2> R3> R4). Further, triangular notches 30 are formed radially outward at predetermined intervals in the peripheral portion of the mounting hole 20 of the front cover 14, and a portion between adjacent notches 30 is deformed. Part 32 is formed.

この結果、フロントカバー１４の後端部１４Ｂの車両への取付保持力Ｆ１は、リヤカバー１６の車両への前端部１６Ａの取付保持力Ｆ２より小さくなっている。また、クリップ２２の車両への取付保持力Ｆ３はリヤカバー１６の前端部１６Ａの車両への取付保持力Ｆ２より大きくなっている（Ｆ３＞Ｆ２＞Ｆ１）。   As a result, the attaching / holding force F1 of the rear end portion 14B of the front cover 14 to the vehicle is smaller than the attaching / holding force F2 of the front end portion 16A of the rear cover 16 to the vehicle. Further, the attachment holding force F3 of the clip 22 to the vehicle is larger than the attachment holding force F2 of the front end portion 16A of the rear cover 16 to the vehicle (F3> F2> F1).

従って、エンジンルーム内に大量の水（図２の矢印Ｗ１）が浸入し、水の水圧によってフロントカバー１４の後端部１４Ｂが、車両下方（図３の矢印Ａ方向）へ押圧され、フロントカバー１４の後端部１４Ｂに取付保持力Ｆ１より大きな力が作用した場合には、フロントカバー１４の後端部１４Ｂに形成された取付孔２０の変形部３２が塑性変形又は弾性変形することで、取付孔２０が広がる。この結果、図３に示される如く、フロントカバー１４の後端部１４Ｂがクリップ２２の支持部２２Ｂから離脱して下方へ移動する。なお、この時、フロントカバー１４の前後方向中間部が撓む。   Accordingly, a large amount of water (arrow W1 in FIG. 2) enters the engine room, and the rear end portion 14B of the front cover 14 is pressed downward (in the direction of arrow A in FIG. 3) by the water pressure of the water. 14 when a force larger than the attachment holding force F1 is applied to the rear end portion 14B of the front cover 14, the deformation portion 32 of the attachment hole 20 formed in the rear end portion 14B of the front cover 14 is plastically deformed or elastically deformed. The mounting hole 20 expands. As a result, as shown in FIG. 3, the rear end portion 14B of the front cover 14 is detached from the support portion 22B of the clip 22 and moves downward. At this time, the front-rear direction intermediate portion of the front cover 14 bends.

このため、図３に示される如く、フロントカバー１４とリヤカバー１６との間に水抜き用の開口部５０が形成され、この開口部５０からフロントカバー１４の上面側に浸入した大量の水（図３の矢印Ｗ１）が車外へ排水される。   For this reason, as shown in FIG. 3, an opening 50 for draining water is formed between the front cover 14 and the rear cover 16, and a large amount of water that has entered the upper surface side of the front cover 14 from the opening 50 (FIG. 3 arrow W1) is drained outside the vehicle.

この時、フロントカバー１４の前端部１４Ａと、リヤカバー１６の前端部１６Ａ及び後端部１６Ｂとは車両に支持されているため、フロントカバー１４及びリヤカバー１６の紛失を防止できる。   At this time, since the front end portion 14A of the front cover 14 and the front end portion 16A and the rear end portion 16B of the rear cover 16 are supported by the vehicle, the front cover 14 and the rear cover 16 can be prevented from being lost.

また、意図した荷重でフロントカバー１４の後端部１４Ｂのみをクリップ２２の支持部２２Ｂから離脱させるので、フロントカバー１４とリヤカバー１６とに大きな負荷が作用するのを防止できる。この結果、フロントカバー１４とリヤカバー１６との損傷を防止できる。   Further, since only the rear end portion 14B of the front cover 14 is detached from the support portion 22B of the clip 22 with an intended load, it is possible to prevent a large load from acting on the front cover 14 and the rear cover 16. As a result, damage to the front cover 14 and the rear cover 16 can be prevented.

このため、フロントカバー１４の後端部１４Ｂに形成された取付孔２０の変形部３２が塑性変形した場合にはその変形を修復することで、フロントカバー１４の後端部１４Ｂを再度車両に取付けることができる。このため、車両のリペアビリティが向上する。   For this reason, when the deformation part 32 of the mounting hole 20 formed in the rear end part 14B of the front cover 14 is plastically deformed, the rear end part 14B of the front cover 14 is attached to the vehicle again by repairing the deformation. be able to. For this reason, the repairability of a vehicle improves.

従って、本実施形態では、車両の空力性能及び車外・車室内騒音要求性能を確保しつつ車内に浸入した大量の水を排水でき、更に車両のリペアビリティも向上できる。   Therefore, in the present embodiment, a large amount of water that has entered the vehicle can be drained while ensuring the aerodynamic performance of the vehicle and the noise requirement performance outside the vehicle interior, and the repairability of the vehicle can also be improved.

以上に於いては、本発明を特定の実施形態について詳細に説明したが、本発明は上記実施形態に限定されるものではなく、本発明の範囲内にて他の種々の実施形態が可能であることは当業者にとって明らかである。例えば、上記実施形態において、フロントカバー１４又はリヤカバー１６に車両内に浸入した少量の水を排水するための小さな水抜き孔を追加形成した構成としても良い。   In the above, the present invention has been described in detail with respect to specific embodiments. However, the present invention is not limited to the above embodiments, and various other embodiments are possible within the scope of the present invention. It will be apparent to those skilled in the art. For example, in the above embodiment, a small drain hole for draining a small amount of water that has entered the vehicle into the front cover 14 or the rear cover 16 may be additionally formed.

また、上記実施形態では、クリップ２２によって、フロントカバー１４の後端部１４Ｂとリヤカバー１６の前端部１６Ａとを車両に固定したが、これに代えて、クリップ２２等の取付手段によって、フロントカバー１４の後端部１４Ｂをリヤカバー１６の前端部１６Ａに固定し、リヤカバー１６の前端部１６Ａは他の取付手段によって車両に固定した構成としても良い。   Further, in the above embodiment, the rear end portion 14B of the front cover 14 and the front end portion 16A of the rear cover 16 are fixed to the vehicle by the clip 22, but instead of this, the front cover 14 is attached by attachment means such as the clip 22 or the like. The rear end portion 14B may be fixed to the front end portion 16A of the rear cover 16, and the front end portion 16A of the rear cover 16 may be fixed to the vehicle by other attachment means.

また、上記実施形態では、取付手段である軸部材としてのクリップ２２を車両下方側から挿通したが、クリップ２２を車両上方側から挿通した構成としても良い。   Moreover, in the said embodiment, although the clip 22 as a shaft member which is an attachment means was inserted from the vehicle lower side, it is good also as a structure which inserted the clip 22 from the vehicle upper side.

また、上記実施形態では、取付手段である軸部材としてクリップ２２を使用したが、クリップ２２に代えて、ボルト、スクリュウ等の他の軸部材を使用しても良い。また、取付手段は軸部材に限定されず、フロントカバー１４の後部をリヤカバー１６の前部へ取付け、フロントカバー１４の上面側に水が浸入した場合に水の押圧力によって、フロントカバー１４の後部をリヤカバー１６の前部から離脱してリヤカバー１６との間に水抜き用の開口部を形成する部材であれば軸部材以外の他の取付手段でも良い。   Moreover, in the said embodiment, although the clip 22 was used as a shaft member which is an attachment means, it may replace with the clip 22 and may use other shaft members, such as a volt | bolt and a screw. Further, the attachment means is not limited to the shaft member, and the rear portion of the front cover 14 is attached to the front portion of the rear cover 16 and water is pushed into the upper surface of the front cover 14 by the pressing force of the water. As long as it is a member that separates from the front portion of the rear cover 16 and forms an opening for draining with the rear cover 16, other attachment means other than the shaft member may be used.

また、上記実施形態では、フロントカバー１４の取付孔２０の直径Ｒ２をリヤカバー１６の取付孔２４の直径Ｒ３より大きくし（Ｒ２＞Ｒ３）、更に、フロントカバー１４の取付孔２０の周縁部に変形部３２を形成したが、これに代えて、フロントカバー１４の取付孔２０の直径Ｒ２をリヤカバー１６の取付孔２４の直径Ｒ３より大きく（Ｒ２＞Ｒ３）するが、変形部３２を形成しない円形としても良い。また、フロントカバー１４の取付孔２０の直径Ｒ２とリヤカバー１６の取付孔２４の直径Ｒ３とを同じにし、フロントカバー１４の取付孔２０の周縁部に変形部３２を形成した構成としても良い。また、フロントカバー１４の取付孔２０の形状は、三角形状、星型形状等の他の形状としても良い。   Further, in the above embodiment, the diameter R2 of the mounting hole 20 of the front cover 14 is made larger than the diameter R3 of the mounting hole 24 of the rear cover 16 (R2> R3), and is further deformed to the peripheral portion of the mounting hole 20 of the front cover 14. Although the portion 32 is formed, instead of this, the diameter R2 of the mounting hole 20 of the front cover 14 is larger than the diameter R3 of the mounting hole 24 of the rear cover 16 (R2> R3). Also good. Alternatively, the diameter R2 of the mounting hole 20 of the front cover 14 and the diameter R3 of the mounting hole 24 of the rear cover 16 may be the same, and the deformed portion 32 may be formed at the peripheral edge of the mounting hole 20 of the front cover 14. Further, the shape of the mounting hole 20 of the front cover 14 may be other shapes such as a triangular shape or a star shape.

また、上記実施形態では、フロントカバー１４の取付孔２０の周縁部に変形部３２を形成したが、これに代えて、クリップ２２の支持部２２Ｂに変形部を形成し、クリップ２２の支持部２２Ｂが変形することで、フロントカバー１４の後部をリヤカバー１６の前部から離脱させる構成としても良い。   Moreover, in the said embodiment, although the deformation | transformation part 32 was formed in the peripheral part of the attachment hole 20 of the front cover 14, it replaces with this and a deformation | transformation part is formed in the support part 22B of the clip 22, and the support part 22B of the clip 22 is provided. By deforming, the rear part of the front cover 14 may be separated from the front part of the rear cover 16.

また、上記実施形態では、フロントカバー１４の後端部１４Ｂとリヤカバー１６の前端部１６Ａ以外の部位において、フロントカバー１４とリヤカバー１６とを締結部材４０、４４によって車両へ取付けているが、フロントカバー１４の後端部１４Ｂに比べて取付保持力が大きくなる取付構造であれば、締結部材４０、４４に代えて、クリップ等の他の取付手段を使用しても良い。   In the above embodiment, the front cover 14 and the rear cover 16 are attached to the vehicle by the fastening members 40 and 44 at portions other than the rear end portion 14B of the front cover 14 and the front end portion 16A of the rear cover 16. 14 may be used instead of the fastening members 40 and 44 as long as the attachment holding force is greater than that of the rear end portion 14B.

また、フロントカバー１４及びリヤカバー１６の形状は上記実施形態の形状に限定されない。   Further, the shapes of the front cover 14 and the rear cover 16 are not limited to the shapes of the above embodiments.

また、フロントカバー１４及びリヤカバー１６の車両下面への取付位置は上記実施形態の取付位置に限定されない。   Further, the mounting positions of the front cover 14 and the rear cover 16 on the lower surface of the vehicle are not limited to the mounting positions in the above embodiment.

図５の１−１線に沿った拡大断面図である。FIG. 6 is an enlarged cross-sectional view taken along line 1-1 of FIG. 図５の２−２線に沿った拡大断面図である。FIG. 6 is an enlarged cross-sectional view taken along line 2-2 in FIG. 5. 本発明の一実施形態に係るエンジンアンダカバー取付構造の水抜き状態を示す図１に対応する断面図である。It is sectional drawing corresponding to FIG. 1 which shows the water draining state of the engine undercover attachment structure which concerns on one Embodiment of this invention. 本発明の一実施形態に係るエンジンアンダカバー取付構造の要部を示す車両下方から見た平面図である。It is the top view seen from the vehicle lower part which shows the principal part of the engine undercover attachment structure which concerns on one Embodiment of this invention. 本発明の一実施形態に係るエンジンアンダカバー取付構造を示す車両下方から見た平面図である。It is the top view seen from the vehicle lower part which shows the engine undercover attachment structure which concerns on one Embodiment of this invention.

符号の説明Explanation of symbols

１０ エンジンアンダカバー
１４ エンジンアンダカバーのフロントカバー
１６ エンジンアンダカバーのリヤカバー
１８ 取付孔
２０ 取付孔
２２ クリップ（取付手段、軸部材）
２２Ａ クリップの係止部
２２Ｂ クリップの支持部
２８ 取付孔
３０ 切欠
３２ 変形部
５０ 水抜き用の開口部 10 engine under cover 14 engine under cover front cover 16 engine under cover rear cover 18 mounting hole 20 mounting hole 22 clip (mounting means, shaft member)
22A Clip locking portion 22B Clip support portion 28 Mounting hole 30 Notch 32 Deformation portion 50 Drain opening

Claims (4)

エンジンアンダカバーの車両前方側の部位を構成し車両へ取付けられるフロントカバーと、
エンジンアンダカバーの車両後方側の部位を構成し車両へ取付けられるリヤカバーと、
前記フロントカバーの後部を前記リヤカバーの前部へ取付け、前記フロントカバーの上面側に水が浸入した場合に前記水の押圧力によって、前記フロントカバーの後部を前記リヤカバーの前部から離脱させて前記リヤカバーとの間に水抜き用の開口部を形成する取付手段と、
を有することを特徴とするエンジンアンダカバーの取付構造。 A front cover that constitutes a portion of the engine under cover on the vehicle front side and is attached to the vehicle;
A rear cover that constitutes a portion of the engine under cover on the vehicle rear side and is attached to the vehicle;
The rear part of the front cover is attached to the front part of the rear cover, and when water enters the upper surface side of the front cover, the rear part of the front cover is separated from the front part of the rear cover by the water pressing force. Mounting means for forming an opening for draining between the rear cover,
An engine undercover mounting structure characterized by comprising: 前記取付手段は、前記フロントカバーに形成された取付孔に挿通され、下部に前記フロントカバーを支持する支持部が設けられており、前記フロントカバーの取付孔の周縁部には変形することで前記支持部を通過可能な変形部が形成されていることを特徴とする請求項１に記載のエンジンアンダカバーの取付構造。   The attachment means is inserted into an attachment hole formed in the front cover, and a support portion for supporting the front cover is provided at a lower portion, and the peripheral portion of the attachment hole of the front cover is deformed to deform the attachment portion. The engine undercover mounting structure according to claim 1, wherein a deformable portion that can pass through the support portion is formed. 前記取付手段は、前記リヤカバーの前部と前記フロントカバーの後部を車両に取付けており、前記フロントカバーの後部の取付保持力は前記リヤカバーの前部の取付保持力より小さいことを特徴とする請求項１に記載のエンジンアンダカバーの取付構造。   The mounting means attaches the front portion of the rear cover and the rear portion of the front cover to a vehicle, and the mounting and holding force of the rear portion of the front cover is smaller than the mounting and holding force of the front portion of the rear cover. Item 4. The engine undercover mounting structure according to Item 1. 前記取付手段は、前記フロントカバーの後部と前記リヤカバーの前部とを貫通する軸部材であることを特徴とする請求項１に記載のエンジンアンダカバーの取付構造。   The engine undercover mounting structure according to claim 1, wherein the mounting means is a shaft member that passes through a rear portion of the front cover and a front portion of the rear cover.
JP2005326999A 2005-11-11 2005-11-11 Engine under cover mounting structure Expired - Fee Related JP4735200B2 (en)

Priority Applications (1)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009274648A (en) * 2008-05-16 2009-11-26 Honda Motor Co Ltd Under cover structure
KR101338760B1 (en) * 2012-03-27 2013-12-06 기아자동차주식회사 Engine Room Cover Mounting Assembly
EP2821329A1 (en) * 2013-07-05 2015-01-07 Seat, S.A. System and method for fitting a spoiler to the body of a vehicle
KR101626325B1 (en) * 2014-12-30 2016-06-01 한화첨단소재 주식회사 Serviceability is enhanced Undercover

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JPH07144589A (en) * 1993-09-30 1995-06-06 Toyota Autom Loom Works Ltd Drain valve for head guard pillar
JPH09286356A (en) * 1996-04-23 1997-11-04 Yamakawa Ind Co Ltd Engine under cover for automobile
JP2000190873A (en) * 1998-12-25 2000-07-11 Nissan Motor Co Ltd Under cover structure of automobile
JP2005008128A (en) * 2003-06-23 2005-01-13 Tokai Kogyo Co Ltd Bumper spoiler and its attachment structure
JP2005138690A (en) * 2003-11-05 2005-06-02 Kanto Auto Works Ltd Front structure of automobile
JP2005178565A (en) * 2003-12-19 2005-07-07 Toyota Motor Corp Front under cover structure

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Publication number Priority date Publication date Assignee Title
JPS49126017A (en) * 1973-04-05 1974-12-03
JPS5781968A (en) * 1980-11-06 1982-05-22 Matsushita Electric Ind Co Ltd Welding wire feeder
JPH07144589A (en) * 1993-09-30 1995-06-06 Toyota Autom Loom Works Ltd Drain valve for head guard pillar
JPH09286356A (en) * 1996-04-23 1997-11-04 Yamakawa Ind Co Ltd Engine under cover for automobile
JP2000190873A (en) * 1998-12-25 2000-07-11 Nissan Motor Co Ltd Under cover structure of automobile
JP2005008128A (en) * 2003-06-23 2005-01-13 Tokai Kogyo Co Ltd Bumper spoiler and its attachment structure
JP2005138690A (en) * 2003-11-05 2005-06-02 Kanto Auto Works Ltd Front structure of automobile
JP2005178565A (en) * 2003-12-19 2005-07-07 Toyota Motor Corp Front under cover structure

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009274648A (en) * 2008-05-16 2009-11-26 Honda Motor Co Ltd Under cover structure
KR101338760B1 (en) * 2012-03-27 2013-12-06 기아자동차주식회사 Engine Room Cover Mounting Assembly
EP2821329A1 (en) * 2013-07-05 2015-01-07 Seat, S.A. System and method for fitting a spoiler to the body of a vehicle
KR101626325B1 (en) * 2014-12-30 2016-06-01 한화첨단소재 주식회사 Serviceability is enhanced Undercover

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