JP2010158984A - Front part structure of vehicle - Google Patents

Front part structure of vehicle Download PDF

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Publication number
JP2010158984A
JP2010158984A JP2009002591A JP2009002591A JP2010158984A JP 2010158984 A JP2010158984 A JP 2010158984A JP 2009002591 A JP2009002591 A JP 2009002591A JP 2009002591 A JP2009002591 A JP 2009002591A JP 2010158984 A JP2010158984 A JP 2010158984A
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vehicle
side wall
air
bumper
present
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JP5091878B2 (en
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Yasuhiro Kaneko
恭大 金子
Makoto Tamamura
誠 玉村
Kanao Tanaka
奏桜 田中
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Honda Access Corp
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Honda Access Corp
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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

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a front part structure of a vehicle capable of further reducing air resistance. <P>SOLUTION: A bumper 2 includes a first side wall 20 arranged on a side surface 1a of the vehicle 1, a second side wall 21 formed in front of the first side wall 20 and a third side wall 22 extended to the inside of the vehicle 1 from the second side wall 21 and arranged at the center 2c of the vehicle 1. The second side wall 21 is constituted to guide air received from the front to the outside of the vehicle 1 and release the air from the vehicle 1. The second wall 21 is inclined in a left direction L forming the inside of the vehicle 1 as it goes to the front, and has a surface formed into a recessed shape. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、車両の前部構造に関し、特に車両の前方に配置されるバンパー等に適用した場合に好適なものである。   The present invention relates to a front structure of a vehicle, and is particularly suitable when applied to a bumper or the like disposed in front of the vehicle.

従来、この種の車体前部であるバンパーとしては、車両前方より空気流を受ける車体のサイドコーナ部に少なくとも１個の碗型突起面を形成したものが開示されている（例えば、特許文献１）。このバンパーによれば、車両前方からの空気流が前記碗型突起面を回り込み、前記サイドコーナ部における車両の正面投影面が受ける圧力の前側への分力を大きくさせ、前記碗型突起面を回り込んだ空気流が車体側面へ向かう空気流を整えて、車体側面の空気流の剥離を抑制し、デザインを優先した形状であっても空気抵抗を減少させることができる。   Conventionally, as this type of bumper that is a front part of a vehicle body, a bumper in which at least one saddle-shaped projection surface is formed on a side corner part of a vehicle body that receives airflow from the front of the vehicle is disclosed (for example, Patent Document 1). ). According to this bumper, an air flow from the front of the vehicle wraps around the saddle-shaped projection surface, and the component force to the front side of the pressure received by the front projection surface of the vehicle at the side corner portion is increased. The airflow that has flowed around adjusts the airflow toward the side surface of the vehicle body, suppresses separation of the airflow on the side surface of the vehicle body, and can reduce air resistance even in a shape that prioritizes design.

特許第３６２４６０９号公報Japanese Patent No. 3624609

しかしながら、上記特許文献１では、車体側面の空気流の剥離が抑制されることにより、当該空気流が前記碗型突起面の近傍において乱流を引き起こし、空気抵抗が大きくなるという懸念があった。   However, in the above-mentioned Patent Document 1, there is a concern that the air flow causes a turbulent flow in the vicinity of the saddle-shaped projection surface and the air resistance is increased by suppressing the separation of the air flow on the side surface of the vehicle body.

そこで本発明は上記した問題点に鑑み、空気抵抗をより低減することができる車両の前部構造を提供することを目的とする。   In view of the above-described problems, an object of the present invention is to provide a vehicle front structure that can further reduce air resistance.

本発明の請求項１に係る発明は、車両の前輪の前方を覆う前部構造において、前記前輪の表面に略平行に形成された第１側壁と、前記第１側壁の前方に連続して形成され前方へ行くに従って内方へ傾斜すると共に表面が凹状に形成された第２側壁と、前記第２側壁の内方に連続して形成された第３側壁とを備えることを特徴とする。   The invention according to claim 1 of the present invention is a front structure that covers the front of a front wheel of a vehicle, and is formed continuously with a first side wall formed substantially parallel to the surface of the front wheel and a front side of the first side wall. The second side wall is inclined inward as it goes forward and the surface is formed in a concave shape, and the third side wall is formed continuously inward of the second side wall.

本発明の請求項２に係る発明は、前記第１側壁と前記第２側壁との接合部は、エッジ形状であることを特徴とする。   The invention according to claim 2 of the present invention is characterized in that a joint portion between the first side wall and the second side wall has an edge shape.

本発明の請求項１に係る発明によれば、走行時における前方からの風の流れを第１側壁と第２側壁との接合部で分離することにより、車両の周囲の空気の流れをスムーズにさせることができるので、空気抵抗を減少させることができると共に、走行性能及び燃費性能の改善を図ることができる。   According to the first aspect of the present invention, the flow of air from the front during traveling is separated at the joint portion between the first side wall and the second side wall, so that the flow of air around the vehicle is smooth. Therefore, the air resistance can be reduced, and the running performance and fuel consumption performance can be improved.

本発明の請求項２に係る発明によれば、接合部は、エッジ形状であることにより、第２側壁によって車両の外方へ誘導された空気を車両からより確実に剥離させることができる。   According to the invention which concerns on Claim 2 of this invention, the junction part can peel more reliably the air induced | guided | derived to the outward of the vehicle by the 2nd side wall from a vehicle by being edge shape.

本発明に係る車両前部構造の構成を示す車両の側面図である。1 is a side view of a vehicle showing a configuration of a vehicle front structure according to the present invention. 本発明に係る車両前部構造の側面図である。It is a side view of the vehicle front part structure concerning the present invention. 本発明に係る車両前部構造の平面図である。It is a top view of the vehicle front part structure concerning the present invention. 本発明に係る車両前部構造の正面図である。It is a front view of the vehicle front part structure concerning the present invention.

（全体構成）
以下、図面を参照して本発明の実施形態について詳細に説明する。尚、以下の説明において、車両の進行方向を「前」として前方向Ｆｒと示し、「後」、「左」、「右」はそれぞれ、後方向Ｒｒ、左方向Ｌ、右方向Ｒとして示す。 (overall structure)
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the following description, the traveling direction of the vehicle is indicated as “front” as the front direction Fr, and “rear”, “left”, and “right” are indicated as the rear direction Rr, the left direction L, and the right direction R, respectively.

図1に示す車両１の前部構造では、前部としてのフロントバンパー（以下、「バンパー」という。）２が、車両１の前方向の端部に設けられており、主に鉛直方向に略平行な面で構成され、前輪の前方及び車両１の前端部分を覆うように形成されている。また、バンパー上部３には、ヘッドライト４が左右一対設けられている。   In the front structure of the vehicle 1 shown in FIG. 1, a front bumper (hereinafter referred to as “bumper”) 2 as a front portion is provided at the front end of the vehicle 1 and is substantially parallel to the vertical direction. The front surface of the front wheel and the front end portion of the vehicle 1 are formed. A pair of headlights 4 are provided on the upper bumper 3.

因みに車両１は、前輪５及び後輪６を左右一対ずつ備える四輪の自動車であり、前方向Ｆｒの端部にバンパー２が設けられている。本実施形態に係る車両１は、ユーザが乗車する車室７の天井部分が開閉自在の幌８で覆われている、オープンカータイプであり、前から順にエンジンルームを覆うボンネット９、フロントガラス10、幌８、荷物を収容するトランクルームを覆うトランクリッド11がそれぞれ配置されている。   Incidentally, the vehicle 1 is a four-wheel automobile including a pair of left and right front wheels 5 and rear wheels 6, and a bumper 2 is provided at an end portion in the front direction Fr. The vehicle 1 according to this embodiment is an open car type in which a ceiling portion of a passenger compartment 7 in which a user gets in is covered with an openable / closable hood 8, and a hood 9 and a windshield 10 that cover an engine room in order from the front. A hood 8 and a trunk lid 11 covering a trunk room for storing luggage are arranged.

また、車両１は、側面視で、バンパー２の上面が前方から後方へ向かって緩やかに上方へ傾斜する形状であって、バンパー２の上面を前方からフロントガラス10へ向かって流れる空気の抵抗を軽減し得るように形成されている。さらに、車両１の側面1aは、前から順にバンパー２、フロントフェンダー12、前輪５、ドアパネル13、後輪６、リアフェンダー14、及びリアバンパー15によって構成され、側面1aを流れる空気が前方から後方にかけてスムーズに流れるように形成されている。   Further, the vehicle 1 has a shape in which the upper surface of the bumper 2 is gently inclined upward from the front to the rear in a side view, and the resistance of air flowing from the front to the windshield 10 through the upper surface of the bumper 2 is reduced. It is formed so that it can be reduced. Further, the side surface 1a of the vehicle 1 is composed of a bumper 2, a front fender 12, a front wheel 5, a door panel 13, a rear wheel 6, a rear fender 14, and a rear bumper 15 in order from the front, and the air flowing through the side surface 1a is rearward from the front. It is formed so that it flows smoothly through.

尚、本発明に係る前部構造は、車両１のコーナー部に配置される部分に特徴があるが、左右対称であるので、簡単のため右側すなわち、車両１の右前のコーナー部についてのみ説明することとする。   Note that the front structure according to the present invention is characterized by the portion arranged at the corner portion of the vehicle 1 but is symmetrical, so only the right-side corner portion of the vehicle 1 is described for simplicity. I will do it.

図2に示すように、バンパー２は、車両１の側面1aに配置された第１側壁20と、前記第１側壁20の前方に形成された第２側壁21と、前記第２側壁21から車両１の内方へ延長された第３側壁22とを備える。これにより、バンパーは、第１側壁で側面部2aが形成され、第２側壁でコーナー部2bが形成されており、第３側壁で中央部2cが形成されている。   As shown in FIG. 2, the bumper 2 includes a first side wall 20 disposed on the side surface 1 a of the vehicle 1, a second side wall 21 formed in front of the first side wall 20, and the second side wall 21. 1 and a third side wall 22 extending inwardly. Thus, the bumper has a side surface portion 2a formed on the first side wall, a corner portion 2b formed on the second side wall, and a central portion 2c formed on the third side wall.

第１側壁20は、前輪５のタイヤハウス16の前側部分となる後縁23を有し、表面が前輪の表面と略平行に形成されている。この第１側壁20は、前方端において、山折りされた接合部24を介して、第２側壁21と一体的に形成されている。接合部24は略鉛直方向へ延びる。第２側壁21は、車両１の右コーナー部に配置されている。   The first side wall 20 has a rear edge 23 serving as a front side portion of the tire house 16 of the front wheel 5, and the surface is formed substantially parallel to the surface of the front wheel. The first side wall 20 is formed integrally with the second side wall 21 via a joint portion 24 that is folded at the front end. The joint 24 extends in a substantially vertical direction. The second side wall 21 is disposed at the right corner portion of the vehicle 1.

また、本実施形態において、第１側壁20は、図3に示すように、平坦な面で構成され、先端へ向かってやや内方としての左方向Ｌへ傾斜した形状に形成されている。   Further, in the present embodiment, as shown in FIG. 3, the first side wall 20 is formed of a flat surface, and is formed in a shape inclined in the left direction L as being slightly inward toward the tip.

第２側壁21は、前方から受けた空気を車両１の外方へ誘導し、空気を車両１から剥離させ得るように構成されている。本実施形態では、第２側壁21は、前方向Ｆｒへ行くに従って車両１の内方となる左方向Ｌへ傾斜すると共に表面が凹状に形成されている。   The second side wall 21 is configured to guide the air received from the front to the outside of the vehicle 1 so that the air can be separated from the vehicle 1. In the present embodiment, the second side wall 21 is inclined in the left direction L which is the inside of the vehicle 1 as it goes in the front direction Fr, and the surface is formed in a concave shape.

また、第１側壁20との接合部24は、エッジ形状に形成され、第２側壁21によって誘導された空気が第１側壁20へ回り込みにくいように構成されている。これにより、第２側壁21に当接した空気は、第２側壁21により車両１の外方としての右方向Ｒへ誘導される。   Further, the joint portion 24 with the first side wall 20 is formed in an edge shape so that the air guided by the second side wall 21 does not easily enter the first side wall 20. As a result, the air in contact with the second side wall 21 is guided to the right direction R as the outside of the vehicle 1 by the second side wall 21.

この第２側壁21は、図4に示すように、正面視において、外形が略台形状であって、下辺21bの長さが上辺21aの長さより長く形成され、上辺21aは、ゆるやかにバンパー上部３と連結している。   As shown in FIG. 4, the second side wall 21 has a substantially trapezoidal shape when viewed from the front, and the lower side 21b is longer than the upper side 21a. The upper side 21a 3 is connected.

また、第３側壁22は、第２側壁21の内方に形成され、バンパー２の中央部2cを構成してなり、外気を前記エンジンルームへ導入する空気取り入れ口26が形成されている。   The third side wall 22 is formed inward of the second side wall 21 and constitutes a central portion 2c of the bumper 2, and is formed with an air intake 26 for introducing outside air into the engine room.

（作用及び効果）
次に上記のように構成された車両１の前部構造の作用及び効果について説明する。車両１が前方向Ｆｒへ進行すると、バンパー２に空気が当接する。さらに速度を増して車両１が高速状態になると、バンパー２の中央部に当接した空気は、第３側壁22によって主にバンパー２の上方および下方へと誘導され後方向Ｒｒへと流れると共に、外気取入れ口26からエンジンルーム内へと誘導される。 (Function and effect)
Next, the operation and effect of the front structure of the vehicle 1 configured as described above will be described. When the vehicle 1 travels in the forward direction Fr, air contacts the bumper 2. When the vehicle speed is further increased and the vehicle 1 is in a high speed state, the air abutting against the central portion of the bumper 2 is guided mainly upward and downward of the bumper 2 by the third side wall 22 and flows in the rearward direction Rr. It is guided from the outside air intake 26 into the engine room.

また、バンパー２のコーナー部2bに当接した空気は、第２側壁21によって車両１の右方向Ｒへ誘導され、車両１から剥離させられる。これにより、バンパー２は、空気が車両１の側面1aに流れ込むことを抑制し、車両１の側面1aにおいて空気の乱流が発生することを防止することができる。従って、車両１の前部構造では、車両１の空気抵抗を低減することができるので、車両１の走行性能及び燃費性能を改善することができる。   Further, the air abutting on the corner portion 2 b of the bumper 2 is guided in the right direction R of the vehicle 1 by the second side wall 21 and separated from the vehicle 1. Thereby, the bumper 2 can suppress the air from flowing into the side surface 1a of the vehicle 1 and can prevent the turbulent flow of air from occurring on the side surface 1a of the vehicle 1. Therefore, in the front structure of the vehicle 1, the air resistance of the vehicle 1 can be reduced, so that the running performance and fuel consumption performance of the vehicle 1 can be improved.

また、第２側壁21を超えて車両１の側面1aへ流れ込んだ空気は、第１側壁を経て、フロントフェンダー12、前輪５、ドアパネル13、後輪６、リアフェンダー14、及びリアバンパー15を順に通過して車両１の後方向Ｒｒへと流れてゆく。   In addition, the air flowing into the side surface 1a of the vehicle 1 beyond the second side wall 21 passes through the first side wall, and sequentially passes through the front fender 12, the front wheel 5, the door panel 13, the rear wheel 6, the rear fender 14, and the rear bumper 15. Passing through, the vehicle 1 flows in the rear direction Rr.

第２側壁21は、前方向Ｆｒへ行くに従って内方へ傾斜すると共に表面が凹状に形成されていることにより、第２側壁21に当接した空気を、後方向Ｒｒへ逸らしながら車両１の右方向Ｒへ誘導するので、車両１の両側の空気の流れをスムーズにし、空気抵抗を低減することができる。   The second side wall 21 is inclined inward as it goes in the front direction Fr, and the surface is formed in a concave shape, so that the air in contact with the second side wall 21 is shifted to the right side of the vehicle 1 while diverting to the rear direction Rr. Since it guides to the direction R, the flow of the air of the both sides of the vehicle 1 can be made smooth, and air resistance can be reduced.

第１側壁20と第２側壁21とを接続する接合部24は、エッジ形状であることにより、第２側壁21によって車両の外方へ誘導された空気が第１側壁20へ回り込みにくくすることができるので、より確実に空気を車両１から剥離させることができる。   The joint 24 connecting the first side wall 20 and the second side wall 21 has an edge shape, so that the air guided to the outside of the vehicle by the second side wall 21 is less likely to enter the first side wall 20. Therefore, air can be more reliably separated from the vehicle 1.

また、接合部24は、鉛直方向に延びているので、第２側壁21の鉛直方向の全体に渡って空気が第１側壁20へ回り込みにくくすることができる。   Further, since the joint portion 24 extends in the vertical direction, it is possible to make it difficult for air to enter the first side wall 20 over the entire vertical direction of the second side wall 21.

また、第１側壁20は、表面が平坦であって、前輪５の表面と略平行に形成されていることにより、車両１の側方を前方から後方へ流れる空気の流れをスムーズにし、空気抵抗をより低減することができる。   Further, the first side wall 20 has a flat surface and is formed substantially in parallel with the surface of the front wheel 5, thereby smoothing the flow of air flowing from the front side to the rear side of the vehicle 1 and air resistance. Can be further reduced.

本発明は上記した実施形態に限定されるものではなく、本発明の趣旨の範囲内で適宜変更することが可能である。例えば、上記実施形態では、車両１がオープンカータイプである場合について説明したが、車室の天井部分が開閉せずに固定されたハードトップタイプの車両に適用することもできる。   The present invention is not limited to the above-described embodiment, and can be appropriately changed within the scope of the gist of the present invention. For example, in the above-described embodiment, the case where the vehicle 1 is an open car type has been described. However, the present invention can also be applied to a hard top type vehicle in which the ceiling portion of the passenger compartment is fixed without opening and closing.

１ 車両
２ バンパー（前部）
20 第１側壁
21 第２側壁
22 第３側壁
24 接合部 1 Vehicle 2 Bumper (front)
20 1st side wall
21 Second side wall
22 3rd side wall
24 joints

Claims (2)

車両の前輪の前方を覆う前部構造において、前記前輪の表面に略平行に形成された第１側壁と、前記第１側壁の前方に連続して形成され前方へ行くに従って内方へ傾斜すると共に表面が凹状に形成された第２側壁と、前記第２側壁の内方に連続して形成された第３側壁とを備えることを特徴とする車両の前部構造。   In the front structure covering the front of the front wheel of the vehicle, the first side wall formed substantially parallel to the surface of the front wheel and the front side of the first side wall are formed continuously in front of the first side wall and inclined inward as going forward. A vehicle front structure comprising: a second side wall having a concave surface; and a third side wall formed continuously inward of the second side wall. 前記第１側壁と前記第２側壁との接合部は、エッジ形状であることを特徴とする請求項１記載の車両の前部構造。   The vehicle front structure according to claim 1, wherein a joint portion between the first side wall and the second side wall has an edge shape.
JP2009002591A 2009-01-08 2009-01-08 Vehicle front structure Active JP5091878B2 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015072476A1 (en) * 2013-11-13 2015-05-21 ヤマハ発動機株式会社 Vehicle
JP2020083107A (en) * 2018-11-27 2020-06-04 マツダ株式会社 Front structure of vehicle
CN115071614A (en) * 2022-06-30 2022-09-20 岚图汽车科技有限公司 Front bumper and car

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