JP4735200B2 - Engine under cover mounting structure - Google Patents

Engine under cover mounting structure Download PDF

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JP4735200B2
JP4735200B2 JP2005326999A JP2005326999A JP4735200B2 JP 4735200 B2 JP4735200 B2 JP 4735200B2 JP 2005326999 A JP2005326999 A JP 2005326999A JP 2005326999 A JP2005326999 A JP 2005326999A JP 4735200 B2 JP4735200 B2 JP 4735200B2
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vehicle
cover
mounting hole
front cover
end portion
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JP2007131198A (en
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直行 石井
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Toyota Motor Corp
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Toyota Motor Corp
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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 out of 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、取付孔が形成された車両と、前端部に取付孔が形成され、エンジンアンダカバーの車両後方側の部位を構成し前記車両の下方へ取付けられるリヤカバーと、後端部に取付孔が形成され、前記エンジンアンダカバーの車両前方側の部位を構成し前記リヤカバーの下方へ取付けられるフロントカバーと、前記車両の取付孔、前記リヤカバーの取付孔、前記フロントカバーの取付孔に下方側から挿通され、前記車両の取付孔の周縁部に係止される係止部と、前記係止部の下端部に設けられ、前記フロントカバーの取付孔の周縁部を車両下方側から支持する支持部と、を備えた取付手段と、を有し、前記フロントカバーの取付孔の周縁部には、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変形し前記取付手段の支持部を通過可能とする変形部が形成されていることを特徴とする。 Engine under-cover mounting structure of the present invention according to claim 1, the vehicle mounting hole is formed, the attachment hole is formed in the front end portion, downward of the vehicle forms a location on the vehicle rear side of the engine under cover A rear cover to be mounted; a mounting hole formed at a rear end portion; a front cover that constitutes a vehicle front side portion of the engine under cover and is mounted below the rear cover; a mounting hole for the vehicle; A locking portion that is inserted into the mounting hole of the front cover from below and is locked to a peripheral portion of the mounting hole of the vehicle, and a lower end portion of the locking portion, It has a support portion for supporting the peripheral portion from the lower side of the vehicle, and mounting means having a, a, the the peripheral portion of the front cover of the mounting hole, place the water on the upper surface of the front cover intrudes Wherein the deformable portion which can pass through the support portion of the attachment means is deformed by the pressing force of the water are formed on.

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後方側の部位を構成するリヤカバーと、エンジンアンダカバーの車両前方側の部位を構成するフロントカバーとを有している。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、取付手段は、車両の取付孔、リヤカバーの取付孔、フロントカバーの取付孔に下方側から挿通され、車両の取付孔の周縁部に係止される係止部と、係止部の下端部に設けられ、フロントカバーの取付孔の周縁部を車両下方側から支持する支持部と、を備えており、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端部の取付孔の周縁部に形成された変形部が変形し取付手段の支持部を通過する。これにより、フロントカバーの後部がリヤカバーの前部から離脱し、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。 The engine under cover that covers the lower surface of the vehicle includes a rear cover that forms a portion of the engine under cover on the vehicle rear side, and a front cover that forms a portion of the engine under cover on the vehicle front side . 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. The mounting means includes a locking portion that is inserted into the mounting hole of the vehicle, the mounting hole of the rear cover, and the mounting hole of the front cover from below and is locked to the peripheral edge of the mounting hole of the vehicle, and a lower end of the locking portion. And a support portion that supports the peripheral edge portion of the mounting hole of the front cover from the lower side of the vehicle, and 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 at the rear end portion of the front cover is deformed and passes through the support portion of the mounting means. Thereby, the rear part of the front cover is detached from the front part of the rear cover, and an opening for draining water is formed between the rear cover and the rear cover . 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、前記取付手段の支持部の直径Ｒ１、前記フロントカバーの取付孔の直径Ｒ２、前記リヤカバーの取付孔の直径Ｒ３が、Ｒ１＞Ｒ２＞Ｒ３であ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 diameter R1 of the support portion of the mounting means, the diameter R2 of the mounting hole of the front cover, and the diameter R3 of the mounting hole of the rear cover are , R1>R2> R3 .

取付手段の支持部の直径Ｒ１、フロントカバーの取付孔の直径Ｒ２、リヤカバーの取付孔の直径Ｒ３が、Ｒ１＞Ｒ２＞Ｒ３であるため、フロントカバーの後端部の車両への取付保持力Ｆ１は、リヤカバーの前端部の車両への取付保持力Ｆ２より小さくなっている。また、クリップの車両への取付保持力Ｆ３はリヤカバーの前端部の車両への取付保持力Ｆ２より大きくなっている。従って、エンジンルームに大量の水が浸入し、水の水圧によってフロントカバーの後端部が、車両下方へ押圧され、フロントカバーの後端部に取付保持力Ｆ１より大きな力が作用した場合には、フロントカバーの後端部に形成された取付孔の変形部が塑性変形又は弾性変形することで、取付孔が広がる。この結果、フロントカバーの後端部がクリップの支持部から離脱して下方へ移動する。Since the diameter R1 of the support portion of the attachment means, the diameter R2 of the attachment hole of the front cover, and the diameter R3 of the attachment hole of the rear cover are R1> R2> R3, the attachment holding force F1 to the vehicle at the rear end portion of the front cover Is smaller than the attachment holding force F2 to the vehicle at the front end of the rear cover. Further, the attachment / holding force F3 of the clip to the vehicle is larger than the attachment / holding force F2 of the front end portion of the rear cover to the vehicle. Accordingly, when a large amount of water enters the engine room, the rear end of the front cover is pressed downward by the water pressure, and a force larger than the mounting holding force F1 acts on the rear end of the front cover. The attachment hole is widened by plastic deformation or elastic deformation of the deformation portion of the attachment hole formed in the rear end portion of the front cover. As a result, the rear end portion of the front cover moves away from the support portion of the clip.

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、前記取付手段の支持部の直径Ｒ１、前記フロントカバーの取付孔の直径Ｒ２、前記リヤカバーの取付孔の直径Ｒ３、前記車両の取付孔の直径Ｒ４が、Ｒ１＞Ｒ２＞Ｒ３＞Ｒ４であることを特徴とする。 According to a third aspect of the present invention, in the engine undercover mounting structure according to the first aspect, the diameter R1 of the support portion of the mounting means, the diameter R2 of the mounting hole of the front cover, and the diameter R3 of the mounting hole of the rear cover. The diameter R4 of the mounting hole of the vehicle is R1>R2>R3> R4.

取付手段の支持部の直径Ｒ１、フロントカバーの取付孔の直径Ｒ２、リヤカバーの取付孔の直径Ｒ３、車両の取付孔の直径Ｒ４が、Ｒ１＞Ｒ２＞Ｒ３＞Ｒ４であるため、フロントカバーの後端部の車両への取付保持力Ｆ１は、リヤカバーの前端部の車両への取付保持力Ｆ２より小さくなっている。また、クリップの車両への取付保持力Ｆ３はリヤカバーの前端部の車両への取付保持力Ｆ２より大きくなっている。従って、エンジンルームに大量の水が浸入し、水の水圧によってフロントカバーの後端部が、車両下方へ押圧され、フロントカバーの後端部に取付保持力Ｆ１より大きな力が作用した場合には、フロントカバーの後端部に形成された取付孔の変形部が塑性変形又は弾性変形することで、取付孔が広がる。この結果、フロントカバーの後端部がクリップの支持部から離脱して下方へ移動する。Since the diameter R1 of the support portion of the mounting means, the diameter R2 of the mounting hole of the front cover, the diameter R3 of the mounting hole of the rear cover, and the diameter R4 of the mounting hole of the vehicle are R1> R2> R3> R4, The attaching and holding force F1 of the end portion to the vehicle is smaller than the attaching and holding force F2 of the front end portion of the rear cover to the vehicle. Further, the attachment / holding force F3 of the clip to the vehicle is larger than the attachment / holding force F2 of the front end portion of the rear cover to the vehicle. Accordingly, when a large amount of water enters the engine room, the rear end of the front cover is pressed downward by the water pressure, and a force larger than the mounting holding force F1 acts on the rear end of the front cover. The attachment hole is widened by plastic deformation or elastic deformation of the deformation portion of the attachment hole formed in the rear end portion of the front cover. As a result, the rear end portion of the front cover moves away from the support portion of the clip.

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、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 2 can drain a large amount of water that has entered the vehicle while ensuring aerodynamic performance.

請求項３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。 According to the third aspect of the present invention, a large amount of water that has entered the vehicle can be drained while ensuring aerodynamic performance.

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. 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 vehicle lower side, and 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 deformed portion 32 of the mounting hole 20 formed in the rear end portion 14B of the front cover 14 is plastically deformed, the deformation is repaired so that the rear end portion 14B of the front cover 14 is attached to the vehicle again. be able to. For this reason, the repairability of the vehicle is improved.

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。   While the present invention has been described in detail with respect to specific embodiments, the present invention is not limited to the above-described 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、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 and the diameter R3 of the mounting hole 24 of the rear cover 16 are made the same, and a deformed portion is formed at the peripheral portion of the mounting hole 20 of the front cover 14. 32 may be formed. 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 (3)

取付孔が形成された車両と、
前端部に取付孔が形成され、エンジンアンダカバーの車両後方側の部位を構成し前記車両の下方へ取付けられるリヤカバーと、
後端部に取付孔が形成され、前記エンジンアンダカバーの車両前方側の部位を構成し前記リヤカバーの下方へ取付けられるフロントカバーと、
前記車両の取付孔、前記リヤカバーの取付孔、前記フロントカバーの取付孔に下方側から挿通され、前記車両の取付孔の周縁部に係止される係止部と、前記係止部の下端部に設けられ、前記フロントカバーの取付孔の周縁部を車両下方側から支持する支持部と、を備えた取付手段と、
を有し、前記フロントカバーの取付孔の周縁部には、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変形し前記取付手段の支持部を通過可能とする変形部が形成されてい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 vehicle with a mounting hole;
A mounting hole is formed in the front end, and a rear cover that constitutes a vehicle rear side portion of the engine undercover and is attached to the lower side of the vehicle;
A mounting hole is formed in the rear end, and a front cover that constitutes a vehicle front side portion of the engine undercover and is mounted below the rear cover;
A locking portion that is inserted from below into the mounting hole of the vehicle, the mounting hole of the rear cover, and the mounting hole of the front cover and is locked to the peripheral edge of the mounting hole of the vehicle, and a lower end portion of the locking portion And a support portion that supports a peripheral portion of the mounting hole of the front cover from the vehicle lower side , and
And a deforming portion that is deformed by the pressing force of the water and can pass through the support portion of the mounting means when water enters the upper surface side of the front cover at a peripheral portion of the mounting hole of the front cover. An engine undercover mounting structure characterized in that is formed . 前記取付手段の支持部の直径Ｒ１、前記フロントカバーの取付孔の直径Ｒ２、前記リヤカバーの取付孔の直径Ｒ３が、Ｒ１＞Ｒ２＞Ｒ３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。 2. The engine underside according to claim 1 , wherein a diameter R1 of a support portion of the attachment means, a diameter R2 of an attachment hole of the front cover, and a diameter R3 of the attachment hole of the rear cover satisfy R1>R2> R3. Cover mounting structure. 前記取付手段の支持部の直径Ｒ１、前記フロントカバーの取付孔の直径Ｒ２、前記リヤカバーの取付孔の直径Ｒ３、前記車両の取付孔の直径Ｒ４が、Ｒ１＞Ｒ２＞Ｒ３＞Ｒ４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 diameter R1 of the support portion of the mounting means, the diameter R2 of the mounting hole of the front cover, the diameter R3 of the mounting hole of the rear cover, and the diameter R4 of the mounting hole of the vehicle are R1>R2>R3> R4. The mounting structure of the engine undercover according to claim 1, wherein
JP2005326999A 2005-11-11 2005-11-11 Engine under cover mounting structure Expired - Fee Related JP4735200B2 (en)

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JP4735200B2 true JP4735200B2 (en) 2011-07-27

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JP4934095B2 (en) * 2008-05-16 2012-05-16 本田技研工業株式会社 Undercover structure
KR101338760B1 (en) * 2012-03-27 2013-12-06 기아자동차주식회사 Engine Room Cover Mounting Assembly
ES2526261B1 (en) * 2013-07-05 2015-09-11 Seat, S.A. Assembly system and procedure for a spoiler on the body of a vehicle
KR101626325B1 (en) * 2014-12-30 2016-06-01 한화첨단소재 주식회사 Serviceability is enhanced Undercover

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