JP2015209121A - Traveling wind guide structure of automobile - Google Patents

Traveling wind guide structure of automobile Download PDF

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Publication number
JP2015209121A
JP2015209121A JP2014091721A JP2014091721A JP2015209121A JP 2015209121 A JP2015209121 A JP 2015209121A JP 2014091721 A JP2014091721 A JP 2014091721A JP 2014091721 A JP2014091721 A JP 2014091721A JP 2015209121 A JP2015209121 A JP 2015209121A
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traveling wind
tire
guide
guide member
wall
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貴大 石川
Takahiro Ishikawa
貴大 石川
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Daihatsu Motor Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/82—Elements for improving aerodynamics
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/88—Optimized components or subsystems, e.g. lighting, actively controlled glasses

Abstract

PROBLEM TO BE SOLVED: To provide a traveling wind guide structure of an automobile, which can improve steering stability and fuel consumption by reliably restraining a traveling wind from being caught in a tire.SOLUTION: A guide member 2 for making a traveling wind guided in the direction of getting away from a tire 7 is arranged in a vehicle body member 3 positioned ahead of the tire 7. The guide member 2 is provided with a guide wall 2d for making the traveling wind guided to flow outward in a vehicle width direction, in a ground surface direction and backward.

Description

本発明は、走行風をタイヤから離れる方向に案内するガイド部材を備えた自動車の走行風ガイド構造に関する。   The present invention relates to a traveling wind guide structure for an automobile provided with a guide member that guides traveling wind in a direction away from a tire.

自動車においては、空力特性の向上を図ることにより操縦安定性，燃費の改善を図る観点から、例えば特許文献１では、タイヤ前方のバンパのアンダーカバーに平面視逆Ｕ字形状なすガイド部材を取り付け、走行風をタイヤの外側方及び内側方に振り分けて流すことで、走行風がタイヤに巻き込まれて乱流を起こすのを抑制するようにした構造が開示されている。   In automobiles, from the viewpoint of improving steering stability and fuel consumption by improving aerodynamic characteristics, for example, in Patent Document 1, a guide member having a reverse U-shape in plan view is attached to an under cover of a bumper in front of a tire, A structure is disclosed in which the traveling wind is distributed to the outer side and the inner side of the tire so as to prevent the traveling wind from being caught in the tire and causing turbulence.

特開２００８−１３０１３号報JP 2008-13013 A

ところで、前記従来構造では、ガイド部材によりタイヤの外側方を流れる風行風の一部がタイヤの外側の回転に巻き込まれて乱流を起こすおそれがあり、その結果、操縦安定性及び燃費の改善効果が不充分に得られないという懸念がある。   By the way, in the conventional structure, there is a possibility that a part of the airflow flowing outside the tire by the guide member is caught in the rotation outside the tire and causes turbulent flow. As a result, the steering stability and the fuel efficiency are improved. There is a concern that this cannot be obtained sufficiently.

本発明は、前記従来の実情に鑑みてなされたもので、走行風がタイヤに巻き込まれるのを確実に抑制することにより、操縦安定性及び燃費の改善をより一層図ることができる自動車の走行風ガイド構造を提供することを課題としている。   The present invention has been made in view of the above-described conventional situation, and the traveling wind of an automobile that can further improve the steering stability and the fuel consumption by reliably suppressing the traveling wind from being caught in the tire. The problem is to provide a guide structure.

本発明は、タイヤの前方に位置する車体部材に、走行風をタイヤから離れる方向に案内するガイド部材を配設した自動車の走行風ガイド構造において、
前記ガイド部材に、走行風を車幅方向外方向かつ地上面方向でかつ後方に流れるように案内するガイド壁を形成したことを特徴としている。 The present invention relates to a traveling wind guide structure for an automobile in which a vehicle body member positioned in front of a tire is provided with a guide member that guides traveling wind in a direction away from the tire.
The guide member is characterized in that a guide wall that guides the traveling wind so as to flow outward in the vehicle width direction, in the direction of the ground surface, and backward is formed.

本発明に係る走行風ガイド構造によれば、走行風を車幅方向外方向かつ地上面方向でかつ後方に流れるように案内するので、走行風がタイヤ外側の回転に巻き込まれるのを抑制することができる。これによりボディ外板で乱流を起こしたり、ホイールハウス内に引き込まれて乱流を起こしたりするのを防止でき、その結果、操縦安定性及び燃費の改善を図ることができる。   According to the traveling wind guide structure according to the present invention, the traveling wind is guided so as to flow backward in the vehicle width direction and in the direction of the ground surface, so that the traveling wind is prevented from being caught in rotation outside the tire. Can do. As a result, it is possible to prevent turbulent flow from being generated on the body outer plate or to be drawn into the wheel house to cause turbulent flow. As a result, it is possible to improve steering stability and fuel consumption.

本発明の実施例１によるガイド部材が配設された自動車の車体後部の車両斜め前方から見た斜視図である。It is the perspective view seen from the vehicle diagonal front of the vehicle body rear part of the motor vehicle by which the guide member by Example 1 of this invention was arrange | positioned. 前記ガイド部材が配設された車体後部の路面側から見た斜視図である。It is the perspective view seen from the road surface side of the vehicle body rear part in which the said guide member was arrange | positioned. 前記ガイド部材の正面図である。It is a front view of the guide member. 前記ガイド部材の側面図である。It is a side view of the guide member. 前記ガイド部材の底面図である。It is a bottom view of the guide member.

以下、本発明の実施の形態を添付図面に基づいて説明する。   Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

図１ないし図５は、本発明の実施例１による自動車の走行風ガイド構造を説明するための図である。本実施例において、前，後、左，右とは、車両の前進方向に見た状態での前，後、左，右を意味する。   1 to 5 are diagrams for explaining a traveling wind guide structure for an automobile according to a first embodiment of the present invention. In the present embodiment, front, rear, left, and right mean front, rear, left, and right as viewed in the forward direction of the vehicle.

図において、１は本実施例のガイド部材２が配設された自動車の車体後部を示している。この車体後部１は、車両前後方向に延びる角筒形状の左，右のロッカ部材(車体部材)３，３の後端部にクォーター部材４の下端部を接続し、該クォーター部材４の上端部にルーフレール部材５の後端部を接続することによりリヤドア開口１ａを形成し、該リヤドア開口１ａにリヤドア６を配設した概略構造を有する。   In the figure, reference numeral 1 denotes a rear part of a vehicle body on which a guide member 2 of this embodiment is disposed. The rear part 1 of the vehicle body has a rectangular tube-shaped left and right rocker members (vehicle body members) 3 and 3 extending in the longitudinal direction of the vehicle, and a lower end part of the quarter member 4 is connected to the rear end parts of the quarter member 4. A rear door opening 1a is formed by connecting the rear end of the roof rail member 5 to the rear door opening 1a, and the rear door 6 is disposed in the rear door opening 1a.

前記左，右のクォーター部材４の下縁には、リヤタイヤ７の上方を囲むホイールアーチ４ａが形成されている。該クォーター部材４のホイールアーチ４ａには前記リヤタイヤ７の上方を覆う円弧状のホイールハウス８が接続されており、該ホイールハウス８の前端部は前記ロッカ部材３に接続されている。   A wheel arch 4 a surrounding the rear tire 7 is formed at the lower edge of the left and right quarter members 4. An arcuate wheel house 8 that covers the rear tire 7 is connected to the wheel arch 4 a of the quarter member 4, and the front end of the wheel house 8 is connected to the rocker member 3.

前記左，右のリヤタイヤ７の前方に位置する前記ロッカ部材（車体部材）３の下面後端部３ａには、前記ガイド部材２，２が下方に突出するよう取り付けられている。   The guide members 2 and 2 are attached to the rear lower end portion 3a of the rocker member (vehicle body member) 3 positioned in front of the left and right rear tires 7 so as to protrude downward.

この左，右のガイド部材２は、前記リヤタイヤ７に向かう走行風Ｂを該リヤタイヤ７から離れる方向に流すよう案内するためのもので、樹脂製，ゴム製，あるいは板金製のものである。   The left and right guide members 2 are for guiding the running wind B toward the rear tire 7 to flow away from the rear tire 7, and are made of resin, rubber, or sheet metal.

前記ガイド部材２は、前記ロッカ部材３への取付け面である上側壁２ａと、該上側壁２ａの後縁に続いて下方に延び、リヤタイヤ７に対面する後側壁２ｂと、前記上側壁２ａの車内側縁に続いて下方に延びる内側壁２ｃとを有する。   The guide member 2 includes an upper side wall 2a which is a mounting surface to the rocker member 3, a rear side wall 2b which extends downward following the rear edge of the upper side wall 2a, and faces the rear tire 7, and the upper side wall 2a. It has the inner side wall 2c extended below following a vehicle inner side edge.

前記ガイド部材２の内側壁２ｃの壁面は、平坦面をなしており、前記リヤタイヤ７に向かう走行風Ｂの一部を、該内側壁２ｃの壁面に沿って該リヤタイヤ７の車幅方向内側を後方に向かって流れる内側流ａとなるように案内している（図５参照）。   The wall surface of the inner wall 2c of the guide member 2 forms a flat surface, and a part of the traveling wind B toward the rear tire 7 is passed along the inner wall 2c of the rear tire 7 along the wall surface of the inner wall 2c. It is guided so as to be the inner flow a flowing backward (see FIG. 5).

そして前記ガイド部材２には、前記走行風Ｂの一部を車幅方向外方向かつ地上面方向でかつ後方に向かって流れる外下方流ｃとなるように案内するガイド壁２ｄが形成されている。   The guide member 2 is formed with a guide wall 2d that guides a part of the traveling wind B so as to be an outer downward flow c that flows outward in the vehicle width direction, in the direction of the ground surface, and toward the rear. .

具体的には、前記ガイド壁２ｄは、大略４分割された球形の内表面に近似する表面形状を有する。そして前記後側壁２ｂの外縁２ｂ′′′は、車両正面から見たとき前記上側壁２ａの外側縁２ａ′′から内側壁２ｃの下端縁２ｃ′に延びる円弧状をなしており（図３参照）、前記内側壁２ｃの外縁２ｃ′′′は両側方から見たとき、前記上側壁２ａの前端縁２ａ′から後側壁２ｂの下端縁２ｂ′に延びる円弧状をなしており（図４参照）、さらに地上面側から見たとき、前記上側壁２ａの外縁２ａ′′′は前記内側壁２ｃの前端縁２ｃ′′から後側壁２ｂの外端縁２ｂ′′に延びる円弧状をなしている（図５参照）。 Specifically, the guide wall 2d has a surface shape that approximates a spherical inner surface divided into approximately four parts. When viewed from the front of the vehicle, the outer edge 2b "'of the rear side wall 2b has an arc shape extending from the outer edge 2a" of the upper side wall 2a to the lower end edge 2c' of the inner side wall 2c (see FIG. 3). ), The outer edge 2c '' 'of the inner wall 2c has an arc shape extending from the front edge 2a' of the upper wall 2a to the lower edge 2b 'of the rear wall 2b when viewed from both sides (see FIG. 4). Further, when viewed from the ground surface side, the outer edge 2a '' of the upper side wall 2a has an arc shape extending from the front end edge 2c '' of the inner side wall 2c to the outer end edge 2b '' of the rear side wall 2b. (See FIG. 5).

本実施例によれば、ガイド部材２に、リヤタイヤ７に向かう走行風Ｂの一部を、リヤタイヤ７の内側流ａとなるように案内する内側壁２ｃと、車幅方向外方向かつ地上面方向でかつ後方に向かって流れる外下方流ｃとなるように案内するガイド壁２ｄとを形成した。   According to the present embodiment, the inner wall 2c that guides the guide member 2 with a part of the traveling wind B toward the rear tire 7 so as to become the inner flow a of the rear tire 7, the outer side in the vehicle width direction, and the ground surface direction And a guide wall 2d that guides the outer downward flow c flowing backward.

そのため前記走行風Ｂの一部は、リヤタイヤ７の外側を地上面に向かって流れることとなり、走行風がリヤタイヤ７の外側面に沿って流れるのを抑制でき、ひいては走行風がリヤタイヤ７の回転に巻き込まれるのを抑制することができる。これによりクォーター部材４で乱流を起こしたり、ホイールハウス８内に引き込まれて乱流を起こしたりするのを防止できる。その結果、操縦安定性及び燃費の改善を図ることができる。 For this reason, a part of the traveling wind B flows outside the rear tire 7 toward the ground surface, so that the traveling wind can be prevented from flowing along the outer surface of the rear tire 7. Entrainment can be suppressed. Thereby, it is possible to prevent the quarter member 4 from causing turbulent flow or being drawn into the wheel house 8 to cause turbulent flow. As a result, it is possible to improve steering stability and fuel consumption.

なお、前記内側壁２ｃに、走行風を車幅方向内方向かつ地上面方向に流れるように案内する内下方流ガイド壁を設けてもよい。   An inner and lower flow guide wall that guides the traveling wind so as to flow in the vehicle width direction and the ground surface may be provided on the inner wall 2c.

また、前記実施例では、ガイド部材２を左，右のリヤタイヤ７に設けた場合を説明したが、本発明のガイド部材は、フロントタイヤに、あるいはフロントタイヤとリヤタイヤの両方に設けてもよい。   In the above embodiment, the guide member 2 is provided on the left and right rear tires 7. However, the guide member of the present invention may be provided on the front tire or on both the front tire and the rear tire.

また本発明のガイド部材は、例えばパイプ形状をなすものであっても良い。この場合は、パイプ部材に車両前方に開口する走行風流入口を形成すると共に、リヤタイヤに向かう走行風流出口近傍部分を、走行風を、車幅方向外方向かつ地上面方向でかつ後方への流れとなるように案内するよう屈曲形成することとなる。この場合、パイプ部材の走行風出口近傍部分のパイプ内壁面が本発明のガイド壁となる。   Further, the guide member of the present invention may be in the shape of a pipe, for example. In this case, a traveling wind inlet opening to the front of the vehicle is formed in the pipe member, and a portion of the vicinity of the traveling wind outlet toward the rear tire is configured to flow the traveling wind outward in the vehicle width direction and in the direction of the ground surface and backward. It will be bent so as to guide. In this case, the pipe inner wall surface in the vicinity of the running air outlet of the pipe member becomes the guide wall of the present invention.

２ ガイド部材
２ｄ ガイド壁
３ ロッカ部材（車体部材）
７ リヤタイヤ
Ｂ 走行風
ｃ 車幅方向外方方向かつ地上面方向でかつ後方への流れ 2 Guide member 2d Guide wall 3 Rocker member (vehicle body member)
7 Rear tire B Running wind c Flow outward in the vehicle width direction and in the direction of the ground surface and backward

Claims (1)

タイヤの前方に位置する車体部材に、走行風をタイヤから離れる方向に案内するガイド部材を配設した自動車の走行風ガイド構造において、
前記ガイド部材に、走行風を車幅方向外方向かつ地上面方向でかつ後方に流れるように案内するガイド壁を形成した
ことを特徴とする自動車の走行風ガイド構造。 In the traveling wind guide structure of an automobile in which a vehicle body member positioned in front of the tire is provided with a guide member that guides traveling wind away from the tire,
A traveling wind guide structure for an automobile, characterized in that a guide wall is formed on the guide member so as to guide the traveling wind to flow outward in the vehicle width direction, in the direction of the ground surface, and backward.
JP2014091721A 2014-04-25 2014-04-25 Traveling wind guide structure of automobile Pending JP2015209121A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018030379A (en) * 2016-08-22 2018-03-01 マツダ株式会社 Flow straightening structure for vehicle lower part
JP2019073138A (en) * 2017-10-16 2019-05-16 三菱自動車工業株式会社 Door garnish
WO2020153318A1 (en) 2019-01-22 2020-07-30 トヨタ自動車株式会社 Lubricant for vehicle having vehicle body charged by driving
KR20210110619A (en) 2019-01-22 2021-09-08 도요타 지도샤（주） Lubricant for vehicles in which the vehicle body is charged by driving

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018030379A (en) * 2016-08-22 2018-03-01 マツダ株式会社 Flow straightening structure for vehicle lower part
JP2019073138A (en) * 2017-10-16 2019-05-16 三菱自動車工業株式会社 Door garnish
JP7029105B2 (en) 2017-10-16 2022-03-03 三菱自動車工業株式会社 Door garnish
WO2020153318A1 (en) 2019-01-22 2020-07-30 トヨタ自動車株式会社 Lubricant for vehicle having vehicle body charged by driving
KR20210110619A (en) 2019-01-22 2021-09-08 도요타 지도샤（주） Lubricant for vehicles in which the vehicle body is charged by driving

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