JP5626665B2

JP5626665B2 - Body front structure

Info

Publication number: JP5626665B2
Application number: JP2012544231A
Authority: JP
Inventors: 和夫河村; 伸司大野; 増田　出光; 出光増田
Original assignee: Suzuki Motor Co Ltd
Current assignee: Suzuki Motor Co Ltd
Priority date: 2010-11-19
Filing date: 2011-11-14
Publication date: 2014-11-19
Anticipated expiration: 2031-11-14
Also published as: WO2012067059A1; CN103209884A; JPWO2012067059A1; CN103209884B

Description

本発明は、車体前方からの荷重の吸収性能を改善した車体前部の構造に関する。 The present invention relates to a structure of a front portion of a vehicle body that has improved load absorption performance from the front of the vehicle body.

従来から、車両の車体前部には、エプロンサイドメンバ、ラジエータサポートメンバ、バンパーネット、フロントバンパー等の部材が設けられている。このうち、ラジエータサポートメンバは、車体下方に配置されており、上部に配置されたラジエータ構成部品を支持している。
このような車体前部に対して、車体前方から棒状物体（例えば、歩行者の脚部）が当たる場合、棒状物体の下側は、ラジエータサポートメンバに接触して、局所的な荷重が掛かるおそれがあった。2. Description of the Related Art Conventionally, members such as an apron side member, a radiator support member, a bumper net, and a front bumper are provided at the front of a vehicle body. Among these, the radiator support member is disposed below the vehicle body and supports the radiator components disposed at the upper portion.
When a rod-shaped object (for example, a pedestrian's leg) hits the front of the vehicle body from the front of the vehicle body, the lower side of the rod-shaped object may come into contact with the radiator support member, and a local load may be applied. was there.

このため、従来の車両の中には、ラジエータサポートメンバの前部に緩衝材などを設けたり、あるいは、ラジエータサポートメンバの車体前後方向の剛性を下げることにより変形容易な構造に設計するなどして、車体前方からの荷重を吸収しているものがある（例えば、特許文献１〜特許文献６参照）。 For this reason, some conventional vehicles are provided with a cushioning material or the like at the front of the radiator support member, or designed to be easily deformable by reducing the rigidity of the radiator support member in the longitudinal direction of the vehicle body. Some have absorbed the load from the front of the vehicle body (see, for example, Patent Document 1 to Patent Document 6).

特開２０１０−１８８９６６号公報JP 2010-188966 A 特開２０１０−１４９６０１号公報JP 2010-149601 A 特開２００９−２５５８９３号公報JP 2009-255893 A 特開２００９−２３４３７６号公報JP 2009-234376 A 特開２００１−１９１９５２号公報JP 2001-191952 A 特開２００８−２３０３１９号公報JP 2008-230319 A

しかしながら、上述した従来の車体前部の構造においては、緩衝材などを配置して固定しており、ラジエータサポートメンバの周辺に設置スペースを設ける必要があるので、コンパクトな設計の妨げとなり、特に小型軽量な車両において不利であった。
また、従来の構造のように、ラジエータサポートメンバの車体前後方向の剛性を単純に下げた場合には、車両走行中の上下動や振動でラジエータなどを支えられなくなったり、剛性低下による共振によって車体振動が発生し、この振動が車室内に伝播して室内騒音が増大するという懸念を有していた。However, in the conventional structure of the front part of the vehicle body described above, a cushioning material or the like is arranged and fixed, and it is necessary to provide an installation space around the radiator support member. It was disadvantageous for lightweight vehicles.
Also, when the rigidity of the radiator support member in the longitudinal direction of the vehicle body is simply lowered as in the conventional structure, the radiator cannot be supported by the vertical movement or vibration while the vehicle is running, or the vehicle body is caused by resonance due to a decrease in rigidity. There was a concern that vibrations occurred and the vibrations propagated into the passenger compartment, resulting in increased room noise.

さらに、ラジエータサポートメンバの棒状物体への当接位置はできる限り低くし、棒状物体の下側部分の揺り戻しを小さくするような設計が求められている。しかし、エプロンサイドメンバ等の全体構造を低くすると、車体骨格全体の修正が必要となるので、このような設計を採用することは難しい。一方、車体前部の構造が車種などに対応して調整できると、設計の自由度が大きくなり、車体前部の共通化や軽量化が図れるとともに、コストダウンも実現することができる。 Furthermore, a design is required in which the contact position of the radiator support member with the rod-shaped object is made as low as possible so that the lower part of the lower portion of the rod-shaped object is not swung back. However, if the overall structure of the apron side member or the like is lowered, it is necessary to modify the entire body skeleton, so it is difficult to adopt such a design. On the other hand, if the structure of the front part of the vehicle body can be adjusted in accordance with the vehicle type and the like, the degree of freedom of design is increased, and the front part of the vehicle body can be made common and light, and the cost can be reduced.

本発明はこのような実状に鑑みてなされたものであって、その目的は、ラジエータサポートメンバ全体の剛性を維持しながら、簡単な構造でラジエータサポートメンバの車体前方側の荷重吸収性能を向上させ、車体前方からの荷重を効率的に吸収するとともに、局所的な荷重を低減させることが可能な車体前部の構造を提供することにある。 The present invention has been made in view of such a situation, and an object thereof is to improve the load absorption performance of the radiator support member on the front side of the vehicle body with a simple structure while maintaining the rigidity of the entire radiator support member. An object of the present invention is to provide a structure of a front portion of a vehicle body that can efficiently absorb a load from the front of the vehicle body and reduce a local load.

上記従来技術の有する課題を解決するために、本発明は、車体前部の車体幅方向の左右両側には、車体前後方向に沿って延在するエプロンサイドメンバが設けられ、該エプロンサイドメンバの前端部には、車体幅方向に沿って延在するラジエータサポートメンバが配置され、該ラジエータサポートメンバによって、前記左右両側に位置するエプロンサイドメンバの前端部の下部が連結されているとともに、前記ラジエータサポートメンバの上部には、ラジエータ構成部品が配置されており、前記ラジエータサポートメンバは、上下に配置されるアッパパネルとロアパネルとを備え、これらアッパパネルとロアパネルとを互いに接合することによって、前記ラジエータサポートメンバが閉断面を形成するように構成されている車体前部の構造において、前記ラジエータサポートメンバの前記アッパパネルは、少なくとも水平方向の平面部と、該平面部の車体前方側に形成され、かつ車体下方へ延びる垂直面部とを有し、前記ロアパネルは、少なくとも水平方向の平面部と、該平面部の車体前方側に形成され、かつ車体上方へ延びる垂直面部と、該垂直面部の車体前方側に形成される水平方向のフランジ部とを有し、前記アッパパネルの平面部と前記ロアパネルのフランジ部とを接合するとともに、前記アッパパネルの後部と前記ロアパネルの後部とを接合することによって、前記アッパパネル及び前記ロアパネルが、車体側方視で略四角形の閉断面に形成されている。 In order to solve the above-described problems of the prior art, according to the present invention, apron side members extending along the vehicle body front-rear direction are provided on both left and right sides of the vehicle body front portion in the vehicle body width direction. A radiator support member extending along the vehicle body width direction is disposed at the front end portion, and the radiator support members are connected to lower portions of the front end portions of the apron side members located on the left and right sides, and the radiator A radiator component is disposed on an upper portion of the support member, and the radiator support member includes an upper panel and a lower panel that are arranged above and below, and the radiator support member is joined by joining the upper panel and the lower panel to each other. In the structure of the front part of the car body that is configured to form a closed section The upper panel of the radiator support member has at least a horizontal plane part and a vertical surface part formed on the front side of the vehicle body of the plane part and extending below the vehicle body, and the lower panel is at least in the horizontal direction. A flat surface portion of the upper panel having a flat surface portion, a vertical surface portion formed on the front side of the vehicle body of the flat surface portion and extending upward of the vehicle body, and a horizontal flange portion formed on the front side of the vehicle body of the vertical surface portion. The lower panel and the lower panel are joined to each other, and the upper panel and the lower panel are joined to each other by joining the rear part of the upper panel and the rear part of the lower panel so as to have a substantially rectangular closed cross section when viewed from the side of the vehicle body. .

また、本発明において、前記アッパパネルは、前記平面部が上面に位置する断面コ字状に形成され、前記アッパパネルの平面部と前記ロアパネルのフランジ部とを接合するとともに、前記アッパパネルの後部と前記ロアパネルの後部とを接合することによって、前記アッパパネル及び前記ロアパネルが、車体側方視で略四角形の閉断面に形成されている。 In the present invention, the upper panel is formed in a U-shaped cross-section with the flat portion positioned on the upper surface, and joins the flat portion of the upper panel and the flange portion of the lower panel, and the rear portion of the upper panel and the lower panel By joining the rear part, the upper panel and the lower panel are formed in a substantially rectangular closed cross section when viewed from the side of the vehicle body.

さらに、本発明において、前記アッパパネルは、断面ハット型形状に形成され、前記アッパパネルの平面部と前記ロアパネルのフランジ部とを接合するとともに、前記アッパパネルの後部のフランジ部と前記ロアパネルの後部とを接合することによって、前記アッパパネル及び前記ロアパネルが、車体側方視で略四角形の閉断面に形成されている。
そして、本発明において、前記アッパパネル及び前記ロアパネルのそれぞれは、断面ハット型形状に形成され、前記アッパパネルの平面部と前記ロアパネルのフランジ部とを接合するとともに、前記アッパパネルの後部のフランジ部と前記ロアパネルの後部のフランジ部とを接合することによって、前記アッパパネル及び前記ロアパネルが、車体側方視で略四角形の閉断面に形成されている。Further, in the present invention, the upper panel is formed in a hat-shaped cross section, and joins the flat portion of the upper panel and the flange portion of the lower panel, and joins the flange portion of the rear portion of the upper panel and the rear portion of the lower panel. Thus, the upper panel and the lower panel are formed in a substantially rectangular closed cross section when viewed from the side of the vehicle body.
In the present invention, each of the upper panel and the lower panel is formed in a hat-shaped cross section, and joins the flat portion of the upper panel and the flange portion of the lower panel, and the flange portion of the rear portion of the upper panel and the lower panel By joining the rear flange portion, the upper panel and the lower panel are formed in a substantially rectangular closed cross section when viewed from the side of the vehicle body.

また、本発明は、車体前部の車体幅方向の左右両側には、車体前後方向に沿って延在するエプロンサイドメンバが設けられ、該エプロンサイドメンバの前端部には、車体幅方向に沿って延在するラジエータサポートメンバが配置され、該ラジエータサポートメンバによって、前記左右両側に位置するエプロンサイドメンバの前端部の下部が連結されているとともに、前記ラジエータサポートメンバの上部には、ラジエータ構成部品が配置されており、前記ラジエータサポートメンバは、上下に配置されるアッパパネルとロアパネルとを備え、これらアッパパネルとロアパネルとを互いに接合することによって、前記ラジエータサポートメンバが閉断面を形成するように構成されている車体前部の構造において、前記ラジエータサポートメンバの前記アッパパネルは、少なくとも水平方向の平面部と、該平面部の車体前方側に形成され、かつ車体下方へ延びる垂直面部と、該垂直面部の車体前方側に形成される水平方向のフランジ部とを有し、前記ロアパネルは、少なくとも水平方向の平面部と、該平面部の車体前方側に形成され、かつ車体上方へ延びる垂直面部とを有し、前記アッパパネルのフランジ部と前記ロアパネルの平面部とを接合するとともに、前記アッパパネルの後部と前記ロアパネルの後部とを接合することによって、前記アッパパネル及び前記ロアパネルが、車体側方視で略四角形の閉断面に形成されている。 Further, according to the present invention, apron side members extending along the front-rear direction of the vehicle body are provided on both left and right sides of the front portion of the vehicle body in the vehicle width direction, and the front end portion of the apron side member extends along the vehicle body width direction. A radiator support member extending in a horizontal direction is disposed, and lower portions of front end portions of the apron side members located on the left and right sides are connected by the radiator support member, and a radiator component is disposed on the upper portion of the radiator support member. The radiator support member includes an upper panel and a lower panel that are disposed above and below, and the radiator support member is configured to form a closed cross section by joining the upper panel and the lower panel to each other. In the structure of the front part of the vehicle body, the radiator support member The upper panel includes at least a horizontal plane portion, a vertical surface portion formed on the vehicle body front side of the plane portion and extending downward of the vehicle body, and a horizontal flange portion formed on the vehicle body front side of the vertical surface portion. The lower panel includes at least a horizontal plane portion and a vertical surface portion formed on the front side of the vehicle body and extending upward of the vehicle body, the flange portion of the upper panel, and the plane portion of the lower panel, And the rear part of the upper panel and the rear part of the lower panel are joined, so that the upper panel and the lower panel are formed in a substantially rectangular closed cross section when viewed from the side of the vehicle body.

さらに、本発明において、前記ロアパネルは、前記平面部が下面に位置する断面コ字状に形成され、前記アッパパネルのフランジ部と前記ロアパネルの平面部とを接合するとともに、前記アッパパネルの後部と前記ロアパネルの後部とを接合することによって、前記アッパパネル及び前記ロアパネルが、車体側方視で略四角形の閉断面に形成されている。また、本発明において、前記ロアパネルは、断面ハット型形状に形成され、前記アッパパネルのフランジ部と前記ロアパネルの平面部とを接合するとともに、前記アッパパネルの後部と前記ロアパネルの後部のフランジ部とを接合することによって、前記アッパパネル及び前記ロアパネルが、車体側方視で略四角形の閉断面に形成されている。
そして、本発明において、前記アッパパネル及び前記ロアパネルのそれぞれは、断面ハット型形状に形成され、前記アッパパネルのフランジ部と前記ロアパネルの平面部とを接合するとともに、前記アッパパネルの後部のフランジ部と前記ロアパネルの後部のフランジ部とを接合することによって、前記アッパパネル及び前記ロアパネルが、車体側方視で略四角形の閉断面に形成されている。Furthermore, in the present invention, the lower panel is formed in a U-shaped cross-section with the flat portion positioned on the lower surface, and joins the flange portion of the upper panel and the flat portion of the lower panel, and the rear portion of the upper panel and the lower panel By joining the rear part, the upper panel and the lower panel are formed in a substantially rectangular closed cross section when viewed from the side of the vehicle body. In the present invention, the lower panel is formed in a hat-shaped cross section, and joins the flange portion of the upper panel and the flat portion of the lower panel, and joins the rear portion of the upper panel and the flange portion of the rear portion of the lower panel. Thus, the upper panel and the lower panel are formed in a substantially rectangular closed cross section when viewed from the side of the vehicle body.
And in this invention, each of the said upper panel and the said lower panel is formed in a cross-sectional hat shape, and while joining the flange part of the said upper panel and the plane part of the said lower panel, the flange part of the rear part of the said upper panel, and the said lower panel By joining the rear flange portion, the upper panel and the lower panel are formed in a substantially rectangular closed cross section when viewed from the side of the vehicle body.

上述の如く、本発明に係る車体前部の構造は、車体前部の車体幅方向の左右両側には、車体前後方向に沿って延在するエプロンサイドメンバが設けられ、該エプロンサイドメンバの前端部には、車体幅方向に沿って延在するラジエータサポートメンバが配置され、該ラジエータサポートメンバによって、前記左右両側に位置するエプロンサイドメンバの前端部の下部が連結されているとともに、前記ラジエータサポートメンバの上部には、ラジエータ構成部品が配置されており、前記ラジエータサポートメンバは、上下に配置されるアッパパネルとロアパネルとを備え、これらアッパパネルとロアパネルとを互いに接合することによって、前記ラジエータサポートメンバが閉断面を形成するように構成されているものであって、前記ラジエータサポートメンバの前記アッパパネルは、少なくとも水平方向の平面部と、該平面部の車体前方側に形成され、かつ車体下方へ延びる垂直面部とを有し、前記ロアパネルは、少なくとも水平方向の平面部と、該平面部の車体前方側に形成され、かつ車体上方へ延びる垂直面部と、該垂直面部の車体前方側に形成される水平方向のフランジ部とを有し、前記アッパパネルの平面部と前記ロアパネルのフランジ部とを接合するとともに、前記アッパパネルの後部と前記ロアパネルの後部とを接合することによって、前記アッパパネル及び前記ロアパネルが、車体側方視で略四角形の閉断面に形成されているので、閉断面構造体を有するラジエータサポートメンバ全体の剛性を維持しながら、簡単な構造でラジエータサポートメンバの車体前方側の荷重吸収性能を向上させ、車体前方からの荷重を効率的に吸収できるとともに、荷重発生源の棒状物体（例えば、歩行者の脚部）への局所的な荷重を低減させることができる。
それに加えて、本発明の構造によれば、閉断面構造体の車体前方側に水平な平面部の前端と、そのさらに前方に続く下方もしくは上方へ延びる垂直面部とで車体側方視（横視）Ｌ字形状の部分が構成されることになる。
これにより、車体前方からの荷重に対して、Ｌ字形状の部分が当該荷重を吸収し、かつＬ字形状の部分の変形後は、剛性を有する閉断面構造体が残ることになるので、ラジエータサポートメンバはラジエータ構成部品を確実に支えることができる。しかも、Ｌ字形状の部分の平面部を長くすることで、吸収できる荷重の大きさを車種などに応じて任意に調整することができる。特に、Ｌ字形状の部分の垂直面部を下方に長くすることで、車体前方からの荷重を受ける高さを低く設定することが可能となり、局所的な荷重をより一層軽減できる。As described above, the structure of the front part of the vehicle body according to the present invention is provided with the apron side members extending along the vehicle body front-rear direction on the left and right sides of the vehicle body width direction, and the front end of the apron side member. A radiator support member extending along the vehicle body width direction is disposed in the section, and the radiator support members are connected to lower portions of front end portions of the apron side members located on the left and right sides, and the radiator support A radiator component is disposed on an upper portion of the member, and the radiator support member includes an upper panel and a lower panel that are disposed above and below, and the radiator support member is configured by joining the upper panel and the lower panel to each other. The radiator is configured to form a closed section, and the radiator The upper panel of the support member includes at least a horizontal plane portion and a vertical plane portion formed on the front side of the vehicle body and extending downward of the vehicle body, and the lower panel includes at least a horizontal plane portion; A vertical surface portion formed on the vehicle body front side of the flat surface portion and extending upward of the vehicle body; and a horizontal flange portion formed on the vehicle body front side of the vertical surface portion. The flat surface portion of the upper panel and the lower panel By joining the flange part and joining the rear part of the upper panel and the rear part of the lower panel, the upper panel and the lower panel are formed in a substantially rectangular closed section when viewed from the side of the vehicle body. While maintaining the rigidity of the entire radiator support member with the structure, the structure of the radiator support member on the front side of the vehicle body is simplified with a simple structure. Improve the heavy absorption performance, along with a load from the front of the vehicle body can be efficiently absorbed, the rod-shaped objects of the load generation source (e.g., the legs of the pedestrian) can be reduced localized loads on the.
In addition, according to the structure of the present invention, the front end of the flat surface portion that is horizontal to the vehicle body front side of the closed cross-section structure and the vertical surface portion that extends further forward or downward extends further to the vehicle body side view (side view). ) An L-shaped part is formed.
As a result, the L-shaped portion absorbs the load with respect to the load from the front of the vehicle body, and a rigid closed cross-section structure remains after the L-shaped portion is deformed. The support member can reliably support the radiator components. In addition, by increasing the length of the flat portion of the L-shaped portion, the load that can be absorbed can be arbitrarily adjusted according to the vehicle type. In particular, by elongating the vertical surface portion of the L-shaped portion downward, it is possible to set the height receiving a load from the front of the vehicle body low, and the local load can be further reduced.

また、本発明の構造において、前記アッパパネルは、前記平面部が上面に位置する断面コ字状に形成され、前記アッパパネルの平面部と前記ロアパネルのフランジ部とを接合するとともに、前記アッパパネルの後部と前記ロアパネルの後部とを接合することによって、前記アッパパネル及び前記ロアパネルが、車体側方視で略四角形の閉断面に形成されているので、車体側方視で略四角形閉断面の剛性の高い基本部分と、その前方に延びた荷重吸収部分とを簡単に作製し、得ることができる。
さらに、本発明の構造において、前記アッパパネルは、断面ハット型形状に形成され、前記アッパパネルの平面部と前記ロアパネルのフランジ部とを接合するとともに、前記アッパパネルの後部のフランジ部と前記ロアパネルの後部とを接合することによって、前記アッパパネル及び前記ロアパネルが、車体側方視で略四角形の閉断面に形成されているので、ハット型断面の剛性の高いアッパパネルもしくはロアパネルを基本にして、車体側方視で略四角形閉断面の剛性の高い基本部分と、その前方に延びた荷重吸収部分とを簡単に作製し、得ることができる。しかも、車体前方からの荷重がハット型断面の前方のフランジ部に作用することになるので、Ｌ字形状の部分が早く変形し始められるとともに、モーメントの作用による変形が誘発され、車体前方からの荷重を効率的に吸収することができる。
そして、本発明の構造において、前記アッパパネル及び前記ロアパネルのそれぞれは、断面ハット型形状に形成され、前記アッパパネルの平面部と前記ロアパネルのフランジ部とを接合するとともに、前記アッパパネルの後部のフランジ部と前記ロアパネルの後部のフランジ部とを接合することによって、前記アッパパネル及び前記ロアパネルが、車体側方視で略四角形の閉断面に形成されているので、単体でも剛性を有するハット型断面のアッパパネルとロアパネルを上下に重ねて構成することで、ラジエータサポートメンバの剛性を確保できるとともに、上記発明と同様、アッパパネル及びロアパネルのハット型断面部分の前方で、車体前方からの荷重を効率的に吸収することができる。Further, in the structure of the present invention, the upper panel is formed in a U-shaped cross-section with the flat portion positioned on the upper surface, and joins the flat portion of the upper panel and the flange portion of the lower panel, and the rear portion of the upper panel; By joining the rear part of the lower panel, the upper panel and the lower panel are formed in a substantially rectangular closed cross section when viewed from the side of the vehicle body. And the load absorption part extended in the front can be produced easily and obtained.
Further, in the structure of the present invention, the upper panel is formed in a hat-shaped cross section, and joins the flat portion of the upper panel and the flange portion of the lower panel, and the flange portion of the rear portion of the upper panel and the rear portion of the lower panel, Since the upper panel and the lower panel are formed in a substantially rectangular closed cross section when viewed from the side of the vehicle body, the upper panel or the lower panel having a hat-shaped cross section is used as a base, and viewed from the side of the vehicle body. A basic portion having a substantially rectangular closed cross section with high rigidity and a load absorbing portion extending in front thereof can be easily produced and obtained. In addition, since the load from the front of the vehicle body acts on the flange portion at the front of the hat-shaped cross section, the L-shaped portion starts to deform quickly, and deformation due to the action of the moment is induced, and the load from the front of the vehicle body is induced. The load can be absorbed efficiently.
In the structure of the present invention, each of the upper panel and the lower panel is formed in a hat-shaped cross section, and joins the flat portion of the upper panel and the flange portion of the lower panel, and the flange portion of the rear portion of the upper panel; By joining the lower flange portion of the lower panel, the upper panel and the lower panel are formed in a substantially rectangular closed cross section when viewed from the side of the vehicle body. By stacking the top and bottom, the rigidity of the radiator support member can be secured, and the load from the front of the vehicle body can be efficiently absorbed in front of the hat-shaped cross sections of the upper panel and the lower panel, as in the above-described invention. it can.

また、本発明に係る車体前部の構造は、車体前部の車体幅方向の左右両側には、車体前後方向に沿って延在するエプロンサイドメンバが設けられ、該エプロンサイドメンバの前端部には、車体幅方向に沿って延在するラジエータサポートメンバが配置され、該ラジエータサポートメンバによって、前記左右両側に位置するエプロンサイドメンバの前端部の下部が連結されているとともに、前記ラジエータサポートメンバの上部には、ラジエータ構成部品が配置されており、前記ラジエータサポートメンバは、上下に配置されるアッパパネルとロアパネルとを備え、これらアッパパネルとロアパネルとを互いに接合することによって、前記ラジエータサポートメンバが閉断面を形成するように構成されているものであって、前記ラジエータサポートメンバの前記アッパパネルは、少なくとも水平方向の平面部と、該平面部の車体前方側に形成され、かつ車体下方へ延びる垂直面部と、該垂直面部の車体前方側に形成される水平方向のフランジ部とを有し、前記ロアパネルは、少なくとも水平方向の平面部と、該平面部の車体前方側に形成され、かつ車体上方へ延びる垂直面部とを有し、前記アッパパネルのフランジ部と前記ロアパネルの平面部とを接合するとともに、前記アッパパネルの後部と前記ロアパネルの後部とを接合することによって、前記アッパパネル及び前記ロアパネルが、車体側方視で略四角形の閉断面に形成されているので、上記発明と同様、閉断面構造体を有するラジエータサポートメンバ全体の剛性を維持しながら、簡単な構造でラジエータサポートメンバの車体前方側の荷重吸収性能を向上させ、車体前方からの荷重を効率的に吸収できるとともに、荷重発生源の棒状物体（例えば、歩行者の脚部）への局所的な荷重を低減させることができる。
それに加えて、本発明の構造によれば、上記発明と同様、閉断面構造体の車体前方側に水平な平面部の前端と、そのさらに前方に続く下方もしくは上方へ延びる垂直面部とで車体側方視（横視）Ｌ字形状の部分が構成されることになる。
これにより、車体前方からの荷重に対して、Ｌ字形状の部分が当該荷重を吸収し、かつＬ字形状の部分の変形後は、剛性を有する閉断面構造体が残ることになるので、ラジエータサポートメンバはラジエータ構成部品を確実に支えることができる。しかも、Ｌ字形状の部分の平面部を長くすることで、吸収できる荷重の大きさを車種などに応じて任意に調整することができる。特に、Ｌ字形状の部分の垂直面部を下方に長くすることで、車体前方からの荷重を受ける高さを低く設定することが可能となり、局所的な荷重をより一層軽減できる。In addition, the structure of the vehicle body front portion according to the present invention is provided with apron side members extending along the vehicle body front-rear direction on the left and right sides in the vehicle width direction of the vehicle body front portion, and at the front end portion of the apron side member. Includes a radiator support member extending along the vehicle body width direction, and the radiator support members are connected to lower portions of front end portions of the apron side members located on the left and right sides of the radiator support member. A radiator component is disposed on the upper portion, and the radiator support member includes an upper panel and a lower panel that are disposed above and below, and the radiator support member is closed by joining the upper panel and the lower panel to each other. Is formed to form the radiator support. The upper panel of the to-member has at least a horizontal plane portion, a vertical surface portion formed on the vehicle body front side of the plane portion and extending downward in the vehicle body, and a horizontal flange portion formed on the vehicle body front side of the vertical surface portion. The lower panel includes at least a horizontal plane portion and a vertical surface portion formed on the front side of the vehicle body and extending upward of the vehicle body. The flange portion of the upper panel and the plane of the lower panel The upper panel and the lower panel are formed in a substantially rectangular closed cross section when viewed from the side of the vehicle body by joining the rear part and the rear part of the upper panel and the rear part of the lower panel. Similarly, the radiator support member has a simple structure while maintaining the rigidity of the entire radiator support member having the closed cross-section structure. The load absorption performance on the front side can be improved, the load from the front of the vehicle body can be efficiently absorbed, and the local load on the rod-like object (for example, the pedestrian's leg) as the load source can be reduced. .
In addition, according to the structure of the present invention, as in the case of the above-described invention, the front end of the flat surface portion that is horizontal on the vehicle body front side of the closed cross-section structure and the vertical surface portion that extends further downward or upward continues further to the vehicle body side. A square (horizontal) L-shaped portion is formed.
As a result, the L-shaped portion absorbs the load with respect to the load from the front of the vehicle body, and a rigid closed cross-section structure remains after the L-shaped portion is deformed. The support member can reliably support the radiator components. In addition, by increasing the length of the flat portion of the L-shaped portion, the load that can be absorbed can be arbitrarily adjusted according to the vehicle type. In particular, by elongating the vertical surface portion of the L-shaped portion downward, it is possible to set the height receiving a load from the front of the vehicle body low, and the local load can be further reduced.

また、本発明の構造において、前記ロアパネルは、前記平面部が下面に位置する断面コ字状に形成され、前記アッパパネルのフランジ部と前記ロアパネルの平面部とを接合するとともに、前記アッパパネルの後部と前記ロアパネルの後部とを接合することによって、前記アッパパネル及び前記ロアパネルが、車体側方視で略四角形の閉断面に形成されているので、上記発明と同様、車体側方視で略四角形閉断面の剛性の高い基本部分と、その前方に延びた荷重吸収部分とを簡単に作製し、得ることができる。
さらに、本発明の構造において、前記ロアパネルは、断面ハット型形状に形成され、前記アッパパネルのフランジ部と前記ロアパネルの平面部とを接合するとともに、前記アッパパネルの後部と前記ロアパネルの後部のフランジ部とを接合することによって、前記アッパパネル及び前記ロアパネルが、車体側方視で略四角形の閉断面に形成されているので、上記発明と同様、ハット型断面の剛性の高いアッパパネルもしくはロアパネルを基本にして、車体側方視で略四角形閉断面の剛性の高い基本部分と、その前方に延びた荷重吸収部分とを簡単に作製し、得ることができる。しかも、車体前方からの荷重がハット型断面の前方のフランジ部に作用することになるので、Ｌ字形状の部分が早く変形し始められるとともに、モーメントの作用による変形が誘発され、車体前方からの荷重を効率的に吸収することができる。Further, in the structure of the present invention, the lower panel is formed in a U-shaped cross section in which the flat portion is located on the lower surface, and joins the flange portion of the upper panel and the flat portion of the lower panel, and the rear portion of the upper panel; By joining the rear part of the lower panel, the upper panel and the lower panel are formed in a substantially rectangular closed section when viewed from the side of the vehicle body. A basic portion having high rigidity and a load absorbing portion extending in front thereof can be easily produced and obtained.
Further, in the structure of the present invention, the lower panel is formed in a hat-shaped cross section, and joins the flange portion of the upper panel and the flat portion of the lower panel, and the rear portion of the upper panel and the flange portion of the rear portion of the lower panel, Since the upper panel and the lower panel are formed in a substantially rectangular closed cross section when viewed from the side of the vehicle body, the upper panel or the lower panel having a hat-shaped cross section with high rigidity is basically used. It is possible to easily produce and obtain a basic portion having a high rigidity with a substantially rectangular closed cross section when viewed from the side of the vehicle body and a load absorbing portion extending forward thereof. In addition, since the load from the front of the vehicle body acts on the flange portion at the front of the hat-shaped cross section, the L-shaped portion starts to deform quickly, and deformation due to the action of the moment is induced, and the load from the front of the vehicle body is induced. The load can be absorbed efficiently.

そして、本発明の構造において、前記アッパパネル及び前記ロアパネルのそれぞれは、断面ハット型形状に形成され、前記アッパパネルのフランジ部と前記ロアパネルの平面部とを接合するとともに、前記アッパパネルの後部のフランジ部と前記ロアパネルの後部のフランジ部とを接合することによって、前記アッパパネル及び前記ロアパネルが、車体側方視で略四角形の閉断面に形成されているので、上記発明と同様、単体でも剛性を有するハット型断面のアッパパネルとロアパネルを上下に重ねて構成することで、ラジエータサポートメンバの剛性を確保できるとともに、上記発明と同様、アッパパネル及びロアパネルのハット型断面部分の前方で、車体前方からの荷重を効率的に吸収することができる。 In the structure of the present invention, each of the upper panel and the lower panel is formed in a hat-shaped cross section, joins the flange portion of the upper panel and the flat portion of the lower panel, and the flange portion of the rear portion of the upper panel; By joining the rear flange portion of the lower panel, the upper panel and the lower panel are formed in a substantially rectangular closed cross section when viewed from the side of the vehicle body. The upper and lower panels of the cross section are stacked one above the other so that the rigidity of the radiator support member can be ensured, and the load from the front of the vehicle body can be efficiently transferred in front of the hat-shaped cross sections of the upper panel and the lower panel as in the above invention. Can be absorbed into.

本発明の実施形態に係る構造が適用される車両の車体前部を示す斜視図である。It is a perspective view which shows the vehicle body front part of the vehicle with which the structure which concerns on embodiment of this invention is applied. 図１の車体前部を、フロントバンパー及びバンパーネットを取外した状態で示す正面図である。It is a front view which shows the vehicle body front part of FIG. 1 in the state which removed the front bumper and the bumper net. 本発明の実施形態の車体前部に設けられるラジエータサポートメンバを斜め下方から見た斜視図である。It is the perspective view which looked at the radiator support member provided in the vehicle body front part of embodiment of this invention from diagonally downward. 本発明の実施形態の車体前部に設けられるラジエータサポートメンバを斜め上方から見た斜視図である。It is the perspective view which looked at the radiator support member provided in the vehicle body front part of embodiment of this invention from diagonally upward. 本発明の実施形態の車体前部に設けられるラジエータサポートメンバを下方から見た斜視図である。It is the perspective view which looked at the radiator support member provided in the vehicle body front part of embodiment of this invention from the downward direction. 本発明の実施形態の車体前部に設けられるラジエータサポートメンバの一部を拡大して示す断面図である。It is sectional drawing which expands and shows a part of radiator support member provided in the vehicle body front part of embodiment of this invention. （ａ）〜（ｈ）は、上記実施形態のラジエータサポートメンバを構成するアッパパネルとロアパネルの各種接合態様を概念的に示す断面図である。(A)-(h) is sectional drawing which shows notionally the various joining aspects of the upper panel and lower panel which comprise the radiator support member of the said embodiment.

以下、本発明を図示の実施の形態に基づいて詳細に説明する。
図１〜図６は本発明の実施形態に係る車体前部の構造を示すものである。Hereinafter, the present invention will be described in detail based on illustrated embodiments.
FIGS. 1-6 shows the structure of the vehicle body front part based on embodiment of this invention.

図１及び図２に示すように、本発明の実施形態に係る構造が適用される車両の車体前部１には、主として、車体前後方向に沿って延在し、かつ車体幅方向の左右両側に間隔を置いて配置される左右一対のエプロンサイドメンバ２と、これらエプロンサイドメンバ２の車体前方に位置する樹脂製のバンパーネット３及びフロントバンパー４とが設けられており、バンパーネット３は、図１に示すように、フロントバンパー４の背面側に設けられている。 As shown in FIGS. 1 and 2, the vehicle body front portion 1 of the vehicle to which the structure according to the embodiment of the present invention is applied mainly extends along the vehicle body front-rear direction and on both the left and right sides in the vehicle body width direction. A pair of left and right apron side members 2 disposed at a distance from each other, and a resin bumper net 3 and a front bumper 4 positioned in front of the apron side member 2 are provided. As shown in FIG. 1, the front bumper 4 is provided on the back side.

エプロンサイドメンバ２は、車体前部１の主骨格を構成する剛性部材であり、エプロンサイドメンバ２の前端部の下側には、図２に示すように、車体幅方向へ延在するラジエータサポートメンバ５が配置されており、該ラジエータサポートメンバ５によって、左右両側に位置するエプロンサイドメンバ２の前端部の下部が連結されている。
このラジエータサポートメンバ５の上部には、ラジエータ、ラジエータファン等のラジエータ構成部品（ラジエータアッシー）６が配置されており、該ラジエータ構成部品６は、ラジエータなどの部品下部をラジエータサポートメンバ５の上部に取付けることによって、ラジエータサポートメンバ５に支持されている。The apron side member 2 is a rigid member constituting the main skeleton of the vehicle body front portion 1, and a radiator support that extends in the vehicle body width direction is provided below the front end portion of the apron side member 2 as shown in FIG. A member 5 is disposed, and the lower portion of the front end portion of the apron side member 2 located on the left and right sides is connected by the radiator support member 5.
A radiator component (radiator assembly) 6 such as a radiator or a radiator fan is disposed on the upper portion of the radiator support member 5. The radiator component 6 has a lower portion of the radiator or the like placed on the upper portion of the radiator support member 5. By attaching, it is supported by the radiator support member 5.

本実施形態のラジエータサポートメンバ５は、図３〜図６に示すように、上下に配置されるアッパパネル７とロアパネル８とを備えており、これらアッパパネル７とロアパネル８とを互いにスポット溶接などで接合することによって、当該ラジエータサポートメンバ５が閉断面を形成するように構成されている。 As shown in FIGS. 3 to 6, the radiator support member 5 of the present embodiment includes an upper panel 7 and a lower panel 8 which are arranged vertically, and the upper panel 7 and the lower panel 8 are joined to each other by spot welding or the like. Thus, the radiator support member 5 is configured to form a closed cross section.

アッパパネル７は、左右両側に位置するエプロンサイドメンバ２を連結することが可能な長さで、車体幅方向に沿って配置されるパネル部材であり、少なくとも水平方向の平面部７ａと、該平面部７ａの車体前方側に形成され、かつ車体下方へ延びる前側垂直面部７ｂ１と、該前側垂直面部７ｂ１の車体前方側に形成される水平方向の前側フランジ部７ｃ１とを有し、また、平面部７ａの車体後方側に形成され、かつ車体下方へ延びる後側垂直面部７ｂ２と、該後側垂直面部７ｂ２の車体後方側に形成される水平方向の後側フランジ部７ｃ２とを有しており、車体側方視で断面ハット型形状に屈曲形成されている。平面部７ａの前後長さは、ラジエータ構成部品６を取付ける部分が他の部分よりも大きく形成されており、前後長さの大きい平面部７ａには、ラジエータ設置のための２つのラジエータ用取付孔９が車体幅方向に間隔を空けて穿設されている。
しかも、アッパパネル７は、車体前方からの荷重を受ける高さを低くし、周辺部品との干渉を避け、かつエプロンサイドメンバ２の下部と連結するために、水平な車体幅方向の中間部分が低く、左右両側部が立ち上がるとともに、左右両端の連結部７ｄが水平方向に延びており、車体前方視でハット型形状に屈曲形成されている。The upper panel 7 is a panel member that has a length capable of connecting the apron side members 2 positioned on both the left and right sides and is disposed along the vehicle body width direction. The upper panel 7 includes at least a horizontal plane portion 7a and the plane portion. A front vertical surface portion 7b1 formed on the front side of the vehicle body of 7a and extending downward of the vehicle body, and a horizontal front flange portion 7c1 formed on the front side of the vehicle body of the front vertical surface portion 7b1, and a flat surface portion 7a. A rear vertical surface portion 7b2 formed on the vehicle body rear side and extending downward of the vehicle body, and a horizontal rear flange portion 7c2 formed on the vehicle body rear side of the rear vertical surface portion 7b2. It is bent and formed into a hat-shaped cross section when viewed from the side. The front and rear length of the flat surface portion 7a is such that the portion to which the radiator component 6 is attached is formed larger than the other portions. The flat surface portion 7a having a large front and rear length has two radiator mounting holes for radiator installation. 9 is drilled at intervals in the vehicle body width direction.
Moreover, the upper panel 7 has a low intermediate portion in the horizontal width direction of the vehicle body in order to reduce the height of the load received from the front of the vehicle body, avoid interference with surrounding parts, and connect to the lower part of the apron side member 2. The left and right side portions rise, and the left and right connecting portions 7d extend in the horizontal direction, and are bent into a hat shape when viewed from the front of the vehicle body.

一方、ロアパネル８は、アッパパネル７の車体幅方向の中間部分に位置する長さで、車体幅方向に沿って配置されるパネル部材であり、少なくとも水平方向の平面部８ａと、該平面部８ａの車体前方側に形成され、かつ車体上方へ延びる前側垂直面部８ｂ１と、該前側垂直面部８ｂ１の車体前方側に形成される水平方向の前側フランジ部８ｃ１とを有し、また、平面部８ａの後部８ｃ２は車体後方側に向かって延びており、車体側方視で断面クランク形状に屈曲形成されている。 On the other hand, the lower panel 8 is a panel member disposed along the vehicle body width direction with a length located in the middle portion of the upper panel 7 in the vehicle body width direction, and includes at least a horizontal plane portion 8a and the plane portion 8a. A front vertical surface portion 8b1 formed on the front side of the vehicle body and extending upward of the vehicle body; a horizontal front flange portion 8c1 formed on the front side of the vehicle body of the front vertical surface portion 8b1; and a rear portion of the flat surface portion 8a. 8c2 extends toward the rear side of the vehicle body and is bent and formed in a crank shape in cross section when viewed from the side of the vehicle body.

そのため、本実施形態のラジエータサポートメンバ５は、図３、図５及び図６に示すように、アッパパネル７の平面部７ａの前側垂直面部７ｂ１寄りの下面にロアパネル８の前側フランジ部８ｃ１を重ねてスポット溶接などで接合するとともに、アッパパネル７の後側フランジ部７ｃ２にロアパネル８の後部８ｃ２を重ねてスポット溶接などで接合することによって、アッパパネル７及びロアパネル８が、車体側方視で略四角形の閉断面に形成されている。ここで、閉断面を略四角形とした理由としては、閉断面構造体の剛性をさらに向上させる必要が生じた場合に、角部を傾斜辺に形成することにより、対応できるようにしたものである。 Therefore, the radiator support member 5 of the present embodiment has the front flange portion 8c1 of the lower panel 8 overlapped with the lower surface of the flat portion 7a of the upper panel 7 near the front vertical surface portion 7b1, as shown in FIGS. The upper panel 7 and the lower panel 8 are closed in a substantially rectangular shape when viewed from the side of the vehicle body by joining by spot welding or the like, and by overlapping the rear portion 8c2 of the lower panel 8 on the rear flange portion 7c2 of the upper panel 7 and joining them by spot welding or the like. It is formed in a cross section. Here, the reason why the closed section is made substantially rectangular is that when the rigidity of the closed section structure needs to be further improved, it is possible to cope with it by forming the corner portion on the inclined side. .

この接合状態において、略四角形の閉断面構造体の車体前方側には、アッパパネル７の水平な平面部７ａの前端と、そのさらに前方に続く下方へ延びる前側垂直面部７ｂ１とで車体側方視Ｌ字形状の部分が構成され、もしくは、前側フランジ部７ｃ１を含めた車体側方視クランク形状の部分が構成されることなり、Ｌ字形状の部分もしくはクランク形状の部分は、剛性の高い閉断面構造体に対して、変形容易な荷重吸収部分としての機能を有することになる。したがって、本実施形態のラジエータサポートメンバ５は、車体前後方向で前方側の変形容易な荷重吸収部分と、荷重吸収部分の変形後もラジエータ構成部品６を支える後方側の高剛性部分とから構成されている。
なお、上記ラジエータ用取付孔９は、アッパパネル７の平面部７ａにおいて、ロアパネル８の前側フランジ部８ｃ１を接合して剛性が向上している部分の近傍に設けられ、ラジエータサポートメンバ５の上部に取付けたラジエータ構成部品６のラジエータが確実に支えられるようになっている。In this joined state, the front side of the horizontal flat surface portion 7a of the upper panel 7 and the front vertical surface portion 7b1 extending downward further forward are provided on the vehicle body front side of the substantially rectangular closed cross-section structure. A vehicle-shaped side-view crank shape including the front flange portion 7c1 is formed, and the L-shaped portion or the crank-shaped portion has a closed cross-sectional structure with high rigidity. It has a function as a load-absorbing portion that is easily deformable with respect to the body. Therefore, the radiator support member 5 of the present embodiment includes a load absorbing portion that is easily deformable on the front side in the longitudinal direction of the vehicle body and a high rigidity portion on the rear side that supports the radiator component 6 even after the load absorbing portion is deformed. ing.
The radiator mounting hole 9 is provided in the flat portion 7 a of the upper panel 7 in the vicinity of a portion where the front flange portion 8 c 1 of the lower panel 8 is joined and the rigidity is improved, and is attached to the upper portion of the radiator support member 5. Further, the radiator of the radiator component 6 is securely supported.

このように構成された本発明の実施形態に係る構造を備えた車両の車体前部１に対して、棒状物体（例えば、歩行者の脚部）がフロントバンパー４に当たって車体前方から荷重がラジエータサポートメンバ５に掛かると、車体前方側に位置しているアッパパネル７の平面部７ａ及び前側垂直面７ｂ１からなる車体側方視Ｌ字形状の部分、もしくは、前側フランジ部７ｃ１を含めた車体側方視クランク形状の部分が変形して車体前方からの荷重を吸収することになる。その後、車体後方側に位置しているアッパパネル７の平面部７ａ及び後側垂直面部７ｂ２と、ロアパネル８の前側垂直面部８ｂ１及び面部８ａの後部８ｃ２とからなる略四角形の閉断面構造体が、車体後方へ向かって変形したＬ字形状の部分もしくはクランク形状の部分を受け止め、ラジエータサポートメンバ５の形状を保持して残り、アッパパネル７の上部に取付けられたラジエータ構成部品６を支えることになる。 With respect to the vehicle body front portion 1 of the vehicle having the structure according to the embodiment of the present invention configured as described above, a rod-like object (for example, a pedestrian's leg) hits the front bumper 4 and the load is applied from the front of the vehicle body to the radiator support member. 5, a vehicle body side view crank including a flat side portion 7a and a front vertical surface 7b1 of the upper panel 7 located on the front side of the vehicle body, or a front side flange portion 7c1. The portion of the shape is deformed to absorb the load from the front of the vehicle body. Thereafter, a substantially rectangular closed cross-sectional structure including the flat surface portion 7a and the rear vertical surface portion 7b2 of the upper panel 7 located on the rear side of the vehicle body, and the front vertical surface portion 8b1 and the rear portion 8c2 of the surface portion 8a of the lower panel 8 is obtained. The L-shaped portion or the crank-shaped portion deformed toward the rear is received, and the shape of the radiator support member 5 is retained and the radiator component 6 attached to the upper portion of the upper panel 7 is supported.

このように、本発明の実施形態に係る構造の車体前部１では、左右両側のエプロンサイドメンバ２の前端部の下部を連結するラジエータサポートメンバ５が、車体側方視で断面ハット型形状のアッパパネル７と車体側方視で断面クランク形状のロアパネル８との接合によって、車体前方側の変形容易な荷重吸収部分の車体側方視Ｌ字形状の部分、もしくは、車体側方視クランク形状の部分と、車体後方側の高剛性部分の閉断面構造体とから構成されているため、棒状物体（例えば、歩行者の脚部）による車体前方からの荷重がラジエータサポートメンバ５に掛かった場合に、車体側方視Ｌ字形状の部分などが容易に変形することになり、車体前方からの荷重を吸収して緩和し、棒状物体への局所的な荷重を回避できる。そして、車体側方視Ｌ字形状の部分などの変形後においては、高剛性部分の閉断面構造体が残るため、ラジエータ構成部品６を確実に保持することができる。 Thus, in the vehicle body front portion 1 having the structure according to the embodiment of the present invention, the radiator support member 5 that connects the lower portions of the front end portions of the left and right apron side members 2 has a hat-shaped cross section when viewed from the side of the vehicle body. By joining the upper panel 7 and the lower panel 8 having a crank shape in cross section when viewed from the side of the vehicle body, the L-shaped portion of the load absorbing portion that is easily deformable on the front side of the vehicle body, or the crank shape portion of the vehicle body side view And a closed cross-sectional structure of the high rigidity portion on the rear side of the vehicle body, so that when a load from the front of the vehicle body due to a rod-like object (for example, a pedestrian's leg) is applied to the radiator support member 5, The L-shaped part or the like of the vehicle body side view is easily deformed, and the load from the front of the vehicle body is absorbed and relaxed, and the local load on the rod-like object can be avoided. Then, after the deformation of the L-shaped portion or the like of the vehicle body side view, the highly rigid portion of the closed cross-section structure remains, so that the radiator component 6 can be reliably held.

また、本実施形態の車体前部１の構造において、アッパパネル７とロアパネル８との接合位置を選択することにより、車体前方側の変形容易な荷重吸収部分と車体後方側の高剛性の基本部分とを備えたラジエータサポートメンバ５が簡単に得られるため、構造が複雑とならず、安価に製造することができる。しかも、本実施形態のラジエータサポートメンバ５は、アッパパネル７の平面部７ａの前端からの突出長さを変えたり、あるいは、アッパパネル７の前側垂直面部７ｂ１を下方へ長くしたり、あるいは、アッパパネル７の前側フランジ部７ｃ１の突出長さを変えたりして荷重吸収性能を変更することが可能であるため、車体骨格全体の修正を行うことなく、適用車種に合わせてこれらの長さを調整できる。したがって、本実施形態の構造によれば、設計の自由度が大きくなり、車体の共通化や軽量化を図ることができるとともに、生産コストの低減化を実現することができる。 Further, in the structure of the vehicle body front portion 1 of the present embodiment, by selecting the joining position of the upper panel 7 and the lower panel 8, a load absorbing portion that is easily deformable on the front side of the vehicle body and a basic portion of high rigidity on the rear side of the vehicle body Since the radiator support member 5 having the above can be easily obtained, the structure is not complicated and can be manufactured at low cost. In addition, the radiator support member 5 of the present embodiment changes the protruding length of the upper panel 7 from the front end of the flat surface portion 7a, lengthens the front vertical surface portion 7b1 of the upper panel 7 downward, or Since it is possible to change the load absorption performance by changing the protruding length of the front flange portion 7c1, it is possible to adjust these lengths according to the applicable vehicle type without modifying the entire vehicle body skeleton. Therefore, according to the structure of the present embodiment, the degree of design freedom is increased, the vehicle body can be shared and the weight can be reduced, and the production cost can be reduced.

以上、本発明の実施の形態につき述べたが、本発明は既述の実施の形態に限定されるものではなく、本発明の技術的思想に基づいて各種の変形及び変更が可能である。 While the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications and changes can be made based on the technical idea of the present invention.

例えば、既述の実施の形態では、ラジエータサポートメンバ５を構成するアッパパネル７とロアパネル８を図７（ａ）に示す形状と接合位置に設定しているが、適用車種などに応じて、図７（ｂ）〜（ｈ）に示す形状と接合位置に設定しても良い。
図７（ｂ）では、アッパパネル７が、水平方向の平面部７ａと、平面部７ａの車体前方側に形成され、かつ車体下方へ延びる前側垂直面部７ｂ１とを有し、ロアパネル８が、水平方向の平面部８ａと、平面部８ａの車体前方側に形成され、かつ車体上方へ延びる垂直面部８ｂ１と、垂直面部８ｂ１の車体前方側に形成される水平方向の前側フランジ部８ｃ１とを有し、アッパパネル７の平面部７ａの下面とロアパネル８の前側フランジ部８ｃ１とを接合するとともに、アッパパネル７の後部とロアパネル８の後部とを接合することによって、アッパパネル７及びロアパネル８が、車体側方視で略四角形の閉断面に形成されている。For example, in the above-described embodiment, the upper panel 7 and the lower panel 8 constituting the radiator support member 5 are set to the shape and joining position shown in FIG. 7A. You may set to the shape and joining position shown to (b)-(h).
In FIG. 7 (b), the upper panel 7 has a horizontal plane portion 7a and a front vertical surface portion 7b1 formed on the front side of the vehicle body of the plane portion 7a and extending downward of the vehicle body. A flat surface portion 8a, a vertical surface portion 8b1 formed on the vehicle body front side of the flat surface portion 8a and extending upward of the vehicle body, and a horizontal front flange portion 8c1 formed on the vehicle body front side of the vertical surface portion 8b1. By joining the lower surface of the flat surface portion 7a of the upper panel 7 and the front flange portion 8c1 of the lower panel 8 and joining the rear portion of the upper panel 7 and the rear portion of the lower panel 8, the upper panel 7 and the lower panel 8 can be seen in the vehicle body side view. It is formed in a substantially rectangular closed cross section.

図７（ｃ）では、アッパパネル７は、平面部７ａが上面に位置する断面コ字状に形成され、アッパパネル７の平面部７ａの下面とロアパネル８の前側フランジ部８ｃ１とを接合するとともに、アッパパネル７の後部７ｂ２とロアパネル８の後部８ｂ２とを接合することによって、アッパパネル７及びロアパネル８が、車体側方視で略四角形の閉断面に形成されている。
図７（ｄ）では、アッパパネル７及びロアパネル８のそれぞれが、断面ハット型形状に形成され、アッパパネル７の平面部７ａの下面とロアパネル８の前側フランジ部８ｃ１とを接合するとともに、アッパパネル７の後側フランジ部７ｃ２とロアパネル８の後側フランジ部８ｃ２とを接合することによって、アッパパネル７及びロアパネル８が、車体側方視で略四角形の閉断面に形成されている。In FIG. 7C, the upper panel 7 is formed in a U-shaped cross section with the flat surface portion 7a positioned on the upper surface, and joins the lower surface of the flat surface portion 7a of the upper panel 7 and the front flange portion 8c1 of the lower panel 8 together with the upper panel. 7 and the rear part 8b2 of the lower panel 8 are joined together, so that the upper panel 7 and the lower panel 8 are formed in a substantially rectangular closed cross section when viewed from the side of the vehicle body.
7D, each of the upper panel 7 and the lower panel 8 is formed in a hat-shaped cross section, and joins the lower surface of the flat portion 7a of the upper panel 7 and the front flange portion 8c1 of the lower panel 8 and By joining the side flange portion 7c2 and the rear flange portion 8c2 of the lower panel 8, the upper panel 7 and the lower panel 8 are formed in a substantially rectangular closed cross section when viewed from the side of the vehicle body.

図７（ｅ）では、アッパパネル７が、水平方向の平面部７ａと、平面部７ａの車体前方側に形成され、かつ車体下方へ延びる前側垂直面部７ｂ１と、垂直面部７ｂ１の車体前方側に形成される水平方向の前側フランジ部７ｃ１とを有し、ロアパネル８が、水平方向の平面部８ａと、平面部８ａの車体前方側に形成され、かつ車体上方へ延びる前側垂直面部８ｂ１とを有し、アッパパネル７の前側フランジ部７ｃ１とロアパネル８の平面部８ａの上面とを接合するとともに、アッパパネル７の後部とロアパネル８の後部とを接合することによって、アッパパネル７及びロアパネル８が、車体側方視で略四角形の閉断面に形成されている。
図７（ｆ）では、ロアパネル８は、平面部８ａが下面に位置する断面コ字状に形成され、アッパパネル７の前側フランジ部７ｃ１とロアパネル８の平面部８ａの上面とを接合するとともに、アッパパネル７の後部７ｂ２とロアパネル８の後部８ｂ２とを接合することによって、アッパパネル７及びロアパネル８が、車体側方視で略四角形の閉断面に形成されている。In FIG. 7E, the upper panel 7 is formed on the horizontal plane portion 7a, the front vertical surface portion 7b1 formed on the vehicle body front side of the plane portion 7a and extending downward on the vehicle body, and the vehicle body front side of the vertical surface portion 7b1. The lower panel 8 includes a horizontal plane portion 8a and a front vertical surface portion 8b1 formed on the front side of the vehicle body of the plane portion 8a and extending upward of the vehicle body. By joining the front flange portion 7c1 of the upper panel 7 and the upper surface of the flat portion 8a of the lower panel 8 and joining the rear portion of the upper panel 7 and the rear portion of the lower panel 8, the upper panel 7 and the lower panel 8 are viewed from the side of the vehicle body. And has a substantially rectangular closed cross section.
In FIG. 7F, the lower panel 8 is formed in a U-shaped cross section with the flat surface portion 8a positioned on the lower surface, and joins the front flange portion 7c1 of the upper panel 7 and the upper surface of the flat surface portion 8a of the lower panel 8 together with the upper panel. 7 and the rear part 8b2 of the lower panel 8 are joined together, so that the upper panel 7 and the lower panel 8 are formed in a substantially rectangular closed cross section when viewed from the side of the vehicle body.

図７（ｇ）では、ロアパネル８は、断面ハット型形状に形成され、アッパパネル７の前側フランジ部７ｃ１とロアパネル８の平面部８ａの上面とを接合するとともに、アッパパネル７の後部７ｃ２とロアパネル８の後側フランジ部８ｃ２とを接合することによって、アッパパネル７及びロアパネル８が、車体側方視で略四角形の閉断面に形成されている。図７（ｈ）では、アッパパネル７及びロアパネル８のそれぞれは、断面ハット型形状に形成され、アッパパネル７の前側フランジ部７ｃ１とロアパネル８の平面部８ａの上面とを接合するとともに、アッパパネル７の後側フランジ部７ｃ２とロアパネル８の後側フランジ部８ｃ２とを接合することによって、アッパパネル７及びロアパネル８が、車体側方視で略四角形の閉断面に形成されている。 In FIG. 7G, the lower panel 8 is formed in a hat-shaped cross section, and joins the front flange portion 7 c 1 of the upper panel 7 and the upper surface of the flat portion 8 a of the lower panel 8, and the rear portion 7 c 2 of the upper panel 7 and the lower panel 8. By joining the rear flange portion 8c2, the upper panel 7 and the lower panel 8 are formed in a substantially rectangular closed cross section when viewed from the side of the vehicle body. In FIG. 7 (h), each of the upper panel 7 and the lower panel 8 is formed in a hat-shaped cross section, and joins the front flange portion 7c1 of the upper panel 7 and the upper surface of the flat portion 8a of the lower panel 8 and By joining the side flange portion 7c2 and the rear flange portion 8c2 of the lower panel 8, the upper panel 7 and the lower panel 8 are formed in a substantially rectangular closed cross section when viewed from the side of the vehicle body.

１車体前部
２エプロンサイドメンバ
５ラジエータサポートメンバ
６ラジエータ構成部品
７アッパパネル
７ａ平面部
７ｂ１，７ｂ２垂直面部
７ｃ１，７ｃ２フランジ部
８ロアパネル
８ａ平面部
８ｂ１，８ｂ２垂直面部
８ｃ１，８ｃ２フランジ部DESCRIPTION OF SYMBOLS 1 Car body front part 2 Apron side member 5 Radiator support member 6 Radiator component 7 Upper panel 7a Flat surface part 7b1, 7b2 Vertical surface part 7c1, 7c2 Flange part 8 Lower panel 8a Flat surface part 8b1, 8b2 Vertical surface part 8c1, 8c2 Flange part

Claims

Apron side members extending along the longitudinal direction of the vehicle body are provided on both the left and right sides of the vehicle body front portion in the vehicle body width direction, and a radiator support extending along the vehicle body width direction is provided at the front end portion of the apron side member. A member is arranged, and the radiator support member is connected to the lower part of the front end portion of the apron side member located on both the left and right sides, and the radiator component is arranged on the upper part of the radiator support member,
The radiator support member includes an upper panel and a lower panel that are arranged vertically, and the radiator support member is configured to form a closed cross section by joining the upper panel and the lower panel to each other. In structure
The upper panel of the radiator support member includes at least a horizontal plane portion and a vertical surface portion formed on the front side of the vehicle body and extending downward of the vehicle body, and the lower panel includes at least a horizontal plane portion. And a vertical surface portion formed on the front side of the vehicle body of the flat surface portion and extending upward of the vehicle body, and a horizontal flange portion formed on the front side of the vehicle body of the vertical surface portion, the flat surface portion of the upper panel, By joining the flange portion of the lower panel and joining the rear portion of the upper panel and the rear portion of the lower panel, the upper panel and the lower panel are formed in a substantially rectangular closed cross section when viewed from the side of the vehicle body. Characteristic front body structure.

The upper panel is formed in a U-shaped cross-section with the flat portion positioned on the upper surface, and joins the flat portion of the upper panel and the flange portion of the lower panel, and joins the rear portion of the upper panel and the rear portion of the lower panel. The structure of the front part of the vehicle body according to claim 1, wherein the upper panel and the lower panel are formed in a substantially rectangular closed cross section when viewed from the side of the vehicle body.

The upper panel is formed in a hat-shaped cross section, and joins the flat part of the upper panel and the flange part of the lower panel, and joins the flange part of the rear part of the upper panel and the rear part of the lower panel. The structure of the front part of the vehicle body according to claim 1, wherein the lower panel is formed in a substantially square closed cross section when viewed from the side of the vehicle body.

Each of the upper panel and the lower panel is formed in a hat-shaped cross section, and joins the flat portion of the upper panel and the flange portion of the lower panel, and the flange portion of the rear portion of the upper panel and the flange portion of the rear portion of the lower panel, The structure of the front part of the vehicle body according to claim 1, wherein the upper panel and the lower panel are formed in a substantially square closed cross section when viewed from the side of the vehicle body.

Apron side members extending along the longitudinal direction of the vehicle body are provided on both the left and right sides of the vehicle body front portion in the vehicle body width direction, and a radiator support extending along the vehicle body width direction is provided at the front end portion of the apron side member. A member is arranged, and the radiator support member is connected to the lower part of the front end portion of the apron side member located on both the left and right sides, and the radiator component is arranged on the upper part of the radiator support member,
The radiator support member includes an upper panel and a lower panel that are arranged vertically, and the radiator support member is configured to form a closed cross section by joining the upper panel and the lower panel to each other. In structure
The upper panel of the radiator support member includes at least a horizontal plane portion, a vertical surface portion formed on the vehicle body front side of the plane portion and extending downward of the vehicle body, and a horizontal direction formed on the vehicle body front side of the vertical surface portion. The lower panel has at least a horizontal plane portion and a vertical surface portion formed on the front side of the vehicle body and extending upward of the vehicle body, and the flange portion of the upper panel and the By joining the flat part of the lower panel and joining the rear part of the upper panel and the rear part of the lower panel, the upper panel and the lower panel are formed in a substantially rectangular closed cross section when viewed from the side of the vehicle body. Characteristic front body structure.

The lower panel is formed in a U-shaped cross section in which the flat portion is located on the lower surface, and joins the flange portion of the upper panel and the flat portion of the lower panel, and joins the rear portion of the upper panel and the rear portion of the lower panel. The structure of the front part of the vehicle body according to claim 5, wherein the upper panel and the lower panel are formed in a substantially rectangular closed cross section when viewed from the side of the vehicle body.

The lower panel is formed in a hat-shaped cross section, and joins the flange portion of the upper panel and the flat portion of the lower panel, and joins the rear portion of the upper panel and the flange portion of the rear portion of the lower panel, thereby 6. The structure of the front portion of the vehicle body according to claim 5, wherein the lower panel is formed in a substantially rectangular closed cross section when viewed from the side of the vehicle body.

Each of the upper panel and the lower panel is formed in a hat-shaped cross section, and joins the flange portion of the upper panel and the flat portion of the lower panel, and includes a flange portion at the rear portion of the upper panel and a flange portion at the rear portion of the lower panel, The structure of the front part of the vehicle body according to claim 5, wherein the upper panel and the lower panel are formed in a substantially rectangular closed cross section when viewed from the side of the vehicle body.