JP2001018852A - Under cover - Google Patents
Under coverInfo
- Publication number
- JP2001018852A JP2001018852A JP11191639A JP19163999A JP2001018852A JP 2001018852 A JP2001018852 A JP 2001018852A JP 11191639 A JP11191639 A JP 11191639A JP 19163999 A JP19163999 A JP 19163999A JP 2001018852 A JP2001018852 A JP 2001018852A
- Authority
- JP
- Japan
- Prior art keywords
- under cover
- undercover
- floor
- hardly
- covering
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Body Structure For Vehicles (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、車体の下面を覆う
アンダーカバーに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an undercover for covering a lower surface of a vehicle body.
【０００２】[0002]
【従来の技術】空気抵抗を低減するために、車体の下面
をアンダーカバーで覆うことがある（特開平８−２７６
８６７号公報参照）。2. Description of the Related Art In order to reduce air resistance, a lower surface of a vehicle body may be covered with an under cover (Japanese Patent Laid-Open No. 8-276).
No. 867).
【０００３】[0003]
【発明が解決しようとする課題】このようなアンダーカ
バーに於いて、タイヤの周囲は開放されているので、タ
イヤの巻き上げた泥・雪・水がカバーの内側に侵入する
ことを避けることはできない。カバーの内側に侵入した
水などを排出するには、水抜き孔を設ける必要がある
が、その開口から水などが侵入することもあり得る。開
閉自在な蓋や逆止弁を開口に設けることも考えられる
が、構造が複雑化する上、排水作業を適時行うことを強
いられる難点がある。In such an undercover, since the periphery of the tire is open, it is inevitable that mud, snow and water rolled up by the tire enter the inside of the cover. . To drain water or the like that has entered the inside of the cover, it is necessary to provide a drain hole. However, water or the like may enter through the opening. It is conceivable to provide an openable and closable lid or a check valve at the opening, but the structure becomes complicated, and there is a problem that the drainage work is forced to be performed in a timely manner.
【０００４】本発明は、このような従来技術の問題点を
解消するためになされたものであり、その主な目的は、
外部から水などが侵入し難い水抜き孔を備えたアンダー
カバーを提供することにある。The present invention has been made to solve such problems of the prior art, and its main objects are as follows.
An object of the present invention is to provide an undercover having a drain hole through which water or the like hardly enters from the outside.
【０００５】[0005]
【課題を解決するための手段】このような目的を果たす
ために、本発明においては、車体の下面を覆うアンダー
カバー（実施の形態中のフロアアンダーカバー２）を、
下面が凹となる窪み（１５）を設けると共に、該窪みの
外周部の車体前側に位置する部分にその一部がかかる水
抜き孔（１４）を設けたことを特徴とするものとした。According to the present invention, an undercover (floor undercover 2 in the embodiment) for covering a lower surface of a vehicle body is provided in order to achieve such an object.
A depression (15) having a concave lower surface is provided, and a drain hole (14) partially provided in a portion of the outer periphery of the depression located on the front side of the vehicle body is provided.
【０００６】このようにすれば、走行中にアンダーカバ
ーの下面に沿って流れる空気がアンダーカバーの上方へ
流れ込み難くなり、むしろ走行中はアンダーカバー内の
空気が吸い出される傾向となるので、アンダーカバー内
に水が侵入し難くなり、かつ高い排水効率が得られる。In this way, it is difficult for the air flowing along the lower surface of the undercover to flow above the undercover during traveling, and the air in the undercover tends to be sucked out during traveling. Water does not easily enter the cover, and high drainage efficiency is obtained.
【０００７】特に、当該アンダーカバーに水勾配を設
け、その低位部に前記水抜き孔を設けるものとすれば、
排水効率がより一層高められる。In particular, if a water gradient is provided on the undercover, and the water drain hole is provided at a lower portion thereof,
The drainage efficiency is further improved.
【０００８】[0008]
【発明の実施の形態】以下に添付の図面に示された一実
施の形態を参照して本発明を詳細に説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to an embodiment shown in the accompanying drawings.
【０００９】図１は、本発明が適用された車両を下側か
ら見た図である。この車両は、空気抵抗を極力低減する
ことを目的として、車体下面のほぼ全てが、エンジンル
ームアンダーカバー１及びフロアアンダーカバー２で覆
われている。FIG. 1 is a view of a vehicle to which the present invention is applied as viewed from below. In this vehicle, almost all the lower surface of the vehicle body is covered with an engine room under cover 1 and a floor under cover 2 for the purpose of reducing air resistance as much as possible.
【００１０】エンジンルームアンダーカバー１は、フロ
ントバンパー３の下面に連続するフロントアンダーカバ
ー４と、エンジンの直下を覆うミドルアンダーカバー５
とに分割されている。またフロアアンダーカバー２は、
フロアトンネル６を境に左右に二分割されている。これ
らのアンダーカバー１・２は、フレーム側に設けられた
ステー（図示せず）に対し、ボルト及び公知のプラステ
ィックファスナを用いてその周縁部の要所が止められて
いる。The engine room under cover 1 includes a front under cover 4 that is continuous with the lower surface of the front bumper 3 and a middle under cover 5 that covers immediately below the engine.
And is divided into: The floor under cover 2
It is divided into two parts on the left and right sides of the floor tunnel 6. These undercovers 1 and 2 are secured to the stays (not shown) provided on the frame side by bolts and well-known plastic fasteners at important points at the peripheral edges.
【００１１】左右一対のフロアアンダーカバー２は、図
２及び図３に示すように、アルミニウム合金の押出材で
形成されたサイドシル７と、アルミニウム合金の板材で
プレス成型されたフロアＦに於けるフロアトンネル６の
立ち上げ部下面に接合されたトンネルスティフナ８との
間を塞ぐ形状に、例えばポリプロピレン樹脂材のスタン
ピングモールド成型にて形成されている。なお、これら
は実質的に左右対称に形成されており、以下、車体の左
側に位置するものについてのみ説明する。As shown in FIG. 2 and FIG. 3, a pair of left and right floor undercovers 2 are a side sill 7 formed of an extruded aluminum alloy and a floor F formed by press-molding an aluminum alloy plate. The tunnel 6 is formed, for example, by stamping molding of a polypropylene resin material so as to close the space between the tunnel 6 and the tunnel stiffener 8 joined to the lower surface of the rising portion. These are substantially symmetrically formed, and only those located on the left side of the vehicle body will be described below.
【００１２】フロアアンダーカバー２の周縁部には、フ
ランジ状部分９が折り曲げ形成され、フレームに固定す
るためのボルト及びプラスティックファスナの挿通孔１
０が、要所に設けられている。そして一般面の左右両側
部には、断面が弧状をなす複数条のビード１１が、剛性
を高めるために前後方向に延設されている。A flange-like portion 9 is formed at the periphery of the floor undercover 2 by bending, and a bolt and a plastic fastener insertion hole 1 for fixing to a frame are provided.
0 is provided at key points. A plurality of beads 11 each having an arc-shaped cross section are provided on both left and right sides of the general surface in the front-rear direction to increase rigidity.
【００１３】フロアアンダーカバー２は、ダッシュボー
ドロワクロスメンバ（図示せず）の中央部とミドルクロ
スメンバ（図示せず）の両端部との間を斜めに接続する
フロアフレーム１２の外側の稜線に沿って、サイドシル
７側が上向きとなるように僅かに屈折されている。また
フロアアンダーカバー２のフロアトンネル６側に位置す
る部分には、上向きに凸となる僅かな膨らみ１３が、前
後方向の略全長に渡って形成されている。そしてフロア
フレーム１２の稜線に沿う折り線と膨らみ１３の両側縁
とに沿って、３列の水抜き孔１４が縦列して設けられて
いる。The floor undercover 2 is formed on an outer ridge line of the floor frame 12 which connects the center of the dashboard lower cross member (not shown) and both ends of the middle cross member (not shown) diagonally. Along the side, the side sill 7 is slightly bent so that the side thereof faces upward. Further, in a portion of the floor undercover 2 located on the floor tunnel 6 side, a slight bulge 13 that protrudes upward is formed over substantially the entire length in the front-rear direction. Then, three rows of drain holes 14 are provided in tandem along a fold line along the ridge line of the floor frame 12 and both side edges of the bulge 13.
【００１４】水抜き孔１４は、図４に示すように、前後
方向に長い長孔とされ、その後端部が、下向きに凹とな
る窪み１５の前側の外周にかかるように形成されてい
る。このように、下面が凹となる窪み１５をフロアアン
ダーカバー２に設け、該窪み１５の外周部の車体前側に
位置する部分にその一部がかかる水抜き孔１４を開ける
ことにより、走行中にフロアアンダーカバー２の下面に
沿って流れる空気がフロアアンダーカバー２の上方へ流
れ込み難くなり、むしろ走行中はフロアアンダーカバー
２内の空気が吸い出される傾向となるので、フロアアン
ダーカバー２内に水が侵入し難くなり、かつ高い排水効
率が得られる。また長孔とすることにより、同一開口面
積で外部からの水などの侵入をより困難になるようにす
ることができる。As shown in FIG. 4, the drain hole 14 is a long hole extending in the front-rear direction, and its rear end is formed so as to cover the outer periphery of the front side of the depression 15 which is concave downward. As described above, the recess 15 having a concave lower surface is provided in the floor undercover 2, and a part of the outer peripheral portion of the recess 15 located on the front side of the vehicle body is formed with the drain hole 14, so that the drain 15 is provided during traveling. It is difficult for the air flowing along the lower surface of the floor undercover 2 to flow above the floor undercover 2, and the air in the floor undercover 2 tends to be sucked out during traveling. Is difficult to penetrate, and high drainage efficiency is obtained. Further, by making the holes long, it is possible to make it more difficult for water or the like to enter from the outside with the same opening area.
【００１５】上記に加えて、外側が上向きとなるように
僅かに屈折させ、かつ上向きに凸となる僅かな膨らみ１
３を設けることにより、フロアアンダーカバー２の上面
に水勾配が付されることとなり、折り線並びに膨らみの
両側縁に沿う位置、つまり低位部に水抜き孔１４が縦列
することとなり、より一層高い排水効率が得られる。In addition to the above, a slight bulge 1 which is slightly refracted so that the outside is upward and is convex upward.
By providing 3, a water gradient is applied to the upper surface of the floor undercover 2, and the drainage holes 14 are tandemly arranged at positions along both side edges of the fold line and the bulge, that is, at the lower part, so that the height is higher. Drainage efficiency is obtained.
【００１６】なお、フロアフレーム１２のフロアトンネ
ル６側の縦壁には、バッテリーと電動機との間を接続す
るケーブル１６を固定するためのケーブルクランプ１７
が取り付けられているが、水抜き孔１４とケーブルクラ
ンプ１７との位置を相互に合わせておくものとすれば、
ケーブル１６のクランプ状況を点検するための覗き孔と
して水抜き孔１４を利用することもできる。A cable clamp 17 for fixing a cable 16 connecting the battery and the motor is provided on the vertical wall of the floor frame 12 on the floor tunnel 6 side.
However, if the positions of the drain holes 14 and the cable clamps 17 are aligned with each other,
The drain hole 14 can also be used as a peep hole for checking the clamp state of the cable 16.
【００１７】フロアアンダーカバー２の後端縁のフロア
トンネル６側に位置する部分Ｐ１は、燃料タンク１８の
前壁に対向している（図６参照）。そして燃料タンク１
８との隙間をできるだけ小さくして小石などの侵入を防
止すると共に剛性を高めるために、この端縁部分Ｐ１は
上向きに折り曲げられている。また跳石などがフロアア
ンダカバー２の前側へ入り込まないようにするために、
別部材からなる断面山形をなし車幅方向に延在するステ
ィフナ１９が、プラスティックファスナ２０をもってフ
ロアアンダカバー２の上面に取り付けられている。そし
て上向きに折り曲げられた端縁部分Ｐ１とスティフナ１
９との間の適宜な位置に孔２１が開けられて、フロアア
ンダカバー２の上面に入り込んだ小石などが抜け落ちる
ようにしてある。A portion P1 of the rear edge of the floor undercover 2 located on the floor tunnel 6 side faces the front wall of the fuel tank 18 (see FIG. 6). And fuel tank 1
The edge portion P1 is bent upward in order to make the gap between the edge portion 8 as small as possible to prevent intrusion of pebbles and the like and increase rigidity. Also, in order to prevent stepping stones etc. from entering the front side of the floor under cover 2,
A stiffener 19, which is formed of a separate member and has a mountain cross section and extends in the vehicle width direction, is attached to the upper surface of the floor under cover 2 with a plastic fastener 20. Then, the edge portion P1 bent upward and the stiffener 1
A hole 21 is formed at an appropriate position between the floor under cover 9 and the small stones that have entered the upper surface of the floor under cover 2 to fall off.
【００１８】フロアアンダーカバー２の後端縁の前後方
向から見てタイヤと概ね重なり合う部分Ｐ２は、懸架装
置への風当たりを防止するために下向きに折り曲げられ
ると共に、後退時に縁石などに突き当たった際に上方へ
曲がり易くするために、端縁に上向きのアールが付けら
れ、かつ前後方向に沿うスリット２２が設けられている
（図７・図８参照）。またスリット２２の終端には、ス
リット２２の幅よりも大径の丸孔２３が設けられてお
り、スリット２２の終端への応力集中を避けている。こ
れらにより、縁石などに突き当たってフロアアンダーカ
バー２の後端部分Ｐ２が持ち上げられても、無理なく変
形して亀裂などを生ぜずに済む。The portion P2 of the rear under edge of the floor undercover 2 which substantially overlaps with the tire when viewed from the front-back direction is bent downward to prevent wind from hitting the suspension device, and when it hits a curb or the like during retreat. In order to make it easy to bend upward, an edge is provided with an upward radius, and a slit 22 is provided along the front-rear direction (see FIGS. 7 and 8). Further, a round hole 23 having a diameter larger than the width of the slit 22 is provided at the end of the slit 22 to avoid concentration of stress on the end of the slit 22. As a result, even if the rear end portion P2 of the floor undercover 2 is lifted by hitting a curb or the like, the rear end portion P2 of the floor undercover 2 can be easily deformed and cracks can be prevented.
【００１９】[0019]
【発明の効果】このように本発明によれば、走行中にア
ンダーカバーの下面に沿って流れる空気がアンダーカバ
ーの上方へ流れ込み難くなり、むしろ走行中はアンダー
カバー内の空気が吸い出される傾向となるので、アンダ
ーカバー内への水などの侵入を抑制すると共に排水効率
を高める上に大きな効果が得られる。これに加えて、当
該アンダーカバーに水勾配を設け、その低位部に前記水
抜き孔を設けるものとすれば、より一層高い排水効率を
得ることができる。As described above, according to the present invention, it is difficult for the air flowing along the lower surface of the undercover to flow above the undercover during traveling, and the air in the undercover tends to be sucked out during traveling. Therefore, a great effect is obtained in suppressing intrusion of water and the like into the undercover and improving drainage efficiency. In addition, if a water gradient is provided in the undercover and the drainage hole is provided in a lower part thereof, higher drainage efficiency can be obtained.
【図１】本発明が適用された車両の下方から見た斜視図FIG. 1 is a perspective view of a vehicle to which the present invention is applied, viewed from below.
【図２】フロアアンダーカバー単体の上方から見た斜視
図FIG. 2 is a perspective view of the floor under cover as viewed from above.
【図３】図２中のIII−III線に沿う断面図FIG. 3 is a sectional view taken along the line III-III in FIG. 2;
【図４】水抜き孔の平面図FIG. 4 is a plan view of a drain hole.
【図５】水抜き孔の縦断面図FIG. 5 is a vertical sectional view of a drain hole.
【図６】上向き部分の縦断面図FIG. 6 is a longitudinal sectional view of an upward portion.
【図７】下向き部分の縦断面図FIG. 7 is a longitudinal sectional view of a downward portion.
【図８】下向き部分の平面図FIG. 8 is a plan view of a downward portion.
２ フロアアンダーカバー １４ 水抜き孔 １５ 窪み 2 Floor under cover 14 Drain hole 15 Depression
Claims (2)
て、 下面が凹となる窪みを設けると共に、該窪みの外周部の
車体前側に位置する部分にその一部がかかる水抜き孔を
設けたことを特徴とするアンダーカバー。1. An undercover for covering a lower surface of a vehicle body, wherein a concave portion having a concave lower surface is provided, and a drainage hole partially provided in a portion of the outer peripheral portion located on the front side of the vehicle body is provided. An undercover characterized by that.
の低位部に前記水抜き孔を設けたことを特徴とする請求
項１に記載のアンダーカバー。2. The undercover according to claim 1, wherein a water gradient is provided in the undercover, and the drain hole is provided in a lower part thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19163999A JP3853109B2 (en) | 1999-07-06 | 1999-07-06 | undercover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19163999A JP3853109B2 (en) | 1999-07-06 | 1999-07-06 | undercover |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001018852A true JP2001018852A (en) | 2001-01-23 |
| JP3853109B2 JP3853109B2 (en) | 2006-12-06 |
Family
ID=16278013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19163999A Expired - Fee Related JP3853109B2 (en) | 1999-07-06 | 1999-07-06 | undercover |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3853109B2 (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006062494A (en) * | 2004-08-26 | 2006-03-09 | Mazda Motor Corp | Underfloor structure of vehicle |
| JP2007283912A (en) * | 2006-04-18 | 2007-11-01 | Kojima Press Co Ltd | Undercover for vehicle |
| JP2008265677A (en) * | 2007-04-24 | 2008-11-06 | Mazda Motor Corp | Vehicle body lower part structure |
| JP2009184519A (en) * | 2008-02-06 | 2009-08-20 | Honda Motor Co Ltd | Vehicle body floor structure |
| JP2010095045A (en) * | 2008-10-14 | 2010-04-30 | Kojima Press Industry Co Ltd | Vehicle undercover and its fixing structure |
| US7793964B2 (en) | 2002-02-19 | 2010-09-14 | Vestas Wind Systems A/S | Method of transportation of a wind turbine nacelle and use thereof |
| WO2011126086A1 (en) | 2010-04-08 | 2011-10-13 | 日産自動車株式会社 | Vehicle underfloor structure |
| JP2012162102A (en) * | 2011-02-03 | 2012-08-30 | Mazda Motor Corp | Control structure of vehicular aerodynamic characteristic |
| JP2013103509A (en) * | 2011-11-10 | 2013-05-30 | Honda Motor Co Ltd | Motor driven vehicle |
| CN104443077A (en) * | 2013-09-18 | 2015-03-25 | 铃木株式会社 | Mounting structure for underbody protection |
| JP2018094950A (en) * | 2016-12-08 | 2018-06-21 | トヨタ自動車株式会社 | Vehicular undercover structure |
| JP2020045052A (en) * | 2018-09-21 | 2020-03-26 | トヨタ自動車株式会社 | Lower structure of electric vehicle |
| JP2020044880A (en) * | 2018-09-14 | 2020-03-26 | トヨタ自動車株式会社 | Lower part structure of electric vehicle |
-
1999
- 1999-07-06 JP JP19163999A patent/JP3853109B2/en not_active Expired - Fee Related
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7793964B2 (en) | 2002-02-19 | 2010-09-14 | Vestas Wind Systems A/S | Method of transportation of a wind turbine nacelle and use thereof |
| JP2006062494A (en) * | 2004-08-26 | 2006-03-09 | Mazda Motor Corp | Underfloor structure of vehicle |
| JP4556559B2 (en) * | 2004-08-26 | 2010-10-06 | マツダ株式会社 | Underfloor structure of vehicle |
| JP2007283912A (en) * | 2006-04-18 | 2007-11-01 | Kojima Press Co Ltd | Undercover for vehicle |
| JP2008265677A (en) * | 2007-04-24 | 2008-11-06 | Mazda Motor Corp | Vehicle body lower part structure |
| JP2009184519A (en) * | 2008-02-06 | 2009-08-20 | Honda Motor Co Ltd | Vehicle body floor structure |
| JP2010095045A (en) * | 2008-10-14 | 2010-04-30 | Kojima Press Industry Co Ltd | Vehicle undercover and its fixing structure |
| EP2557022A1 (en) * | 2010-04-08 | 2013-02-13 | Nissan Motor Co., Ltd. | Vehicle underfloor structure |
| CN102822041A (en) * | 2010-04-08 | 2012-12-12 | 日产自动车株式会社 | Vehicle underfloor structure |
| WO2011126086A1 (en) | 2010-04-08 | 2011-10-13 | 日産自動車株式会社 | Vehicle underfloor structure |
| EP2557022A4 (en) * | 2010-04-08 | 2013-09-11 | Nissan Motor | Vehicle underfloor structure |
| US8668254B2 (en) | 2010-04-08 | 2014-03-11 | Nissan Motor Co., Ltd. | Vehicle underfloor structure |
| JP2012162102A (en) * | 2011-02-03 | 2012-08-30 | Mazda Motor Corp | Control structure of vehicular aerodynamic characteristic |
| JP2013103509A (en) * | 2011-11-10 | 2013-05-30 | Honda Motor Co Ltd | Motor driven vehicle |
| CN104443077A (en) * | 2013-09-18 | 2015-03-25 | 铃木株式会社 | Mounting structure for underbody protection |
| JP2015058779A (en) * | 2013-09-18 | 2015-03-30 | スズキ株式会社 | Undercover fitting structure |
| DE102014112528B4 (en) * | 2013-09-18 | 2019-03-28 | Suzuki Motor Corporation | Fixing structure for underbody protection |
| JP2018094950A (en) * | 2016-12-08 | 2018-06-21 | トヨタ自動車株式会社 | Vehicular undercover structure |
| JP2020044880A (en) * | 2018-09-14 | 2020-03-26 | トヨタ自動車株式会社 | Lower part structure of electric vehicle |
| JP7091966B2 (en) | 2018-09-14 | 2022-06-28 | トヨタ自動車株式会社 | Undercarriage of electric vehicle |
| JP2020045052A (en) * | 2018-09-21 | 2020-03-26 | トヨタ自動車株式会社 | Lower structure of electric vehicle |
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