JPH07156828A - Front body structure of automobile - Google Patents
Front body structure of automobileInfo
- Publication number
- JPH07156828A JPH07156828A JP30407093A JP30407093A JPH07156828A JP H07156828 A JPH07156828 A JP H07156828A JP 30407093 A JP30407093 A JP 30407093A JP 30407093 A JP30407093 A JP 30407093A JP H07156828 A JPH07156828 A JP H07156828A
- Authority
- JP
- Japan
- Prior art keywords
- cross member
- end portion
- center
- front side
- vehicle body
- 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.)
- Pending
Links
Landscapes
- Body Structure For Vehicles (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は自動車の車体フロント構
造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle body front structure.
【０００２】[0002]
【従来の技術】自動車の中には、例えば実開昭６３−２
８０７９号公報に示されているように、車体前後方向に
延在する両側のフロントサイドメンバの前端部に跨って
結合したファーストクロスメンバに、エンジンルームの
下側中央部に車体前後方向に延在するセンターメンバの
前端部を結合し、該センターメンバ上でもマウント部材
を介してエンジンおよびトランスミッションからなるパ
ワーユニットを弾性支持するようにしたものが知られて
いる。2. Description of the Related Art Some automobiles include, for example, the Japanese Utility Model Sho 63-2.
As disclosed in Japanese Patent No. 8079, a first cross member connected to the front ends of front side members on both sides extending in the front-rear direction of the vehicle body is extended to the front-rear direction of the vehicle body at the lower center of the engine room. It is known that a front end portion of a center member is coupled and a power unit including an engine and a transmission is elastically supported on the center member via a mount member.
【０００３】[0003]
【発明が解決しようとする課題】センターメンバはエン
ジンを支持すると共に、前述のようにフロントサイドメ
ンバと共に車体前後方向に延在していて、車両の前面衝
突時にこれらフロントサイドメンバと共に後方へ圧潰す
ることにより、衝突エネルギー吸収効果を得ることがで
きる。The center member supports the engine and extends in the front-rear direction of the vehicle body together with the front side members as described above, and crushes rearward together with these front side members in the case of a frontal collision of the vehicle. As a result, the collision energy absorption effect can be obtained.
【０００４】ところが、ファーストクロスメンバは両側
のフロントサイドメンバと直交方向に結合配置され、か
つ、センターメンバはこのファーストクロスメンバに直
交方向に結合配置されているため、車両の斜め衝突時に
は衝突荷重がファーストクロスメンバを介してセンター
メンバに軸線方向に入力しにくく、該センターメンバの
圧潰が良好に行われずに衝突エネルギー吸収効果を十分
に発揮できない場合がある。However, since the first cross member is connected and arranged in a direction orthogonal to the front side members on both sides, and the center member is connected and arranged in a direction orthogonal to this first cross member, a collision load is exerted when the vehicle obliquely collides. It may be difficult to input the force to the center member in the axial direction via the first cross member, the center member may not be crushed well, and the impact energy absorbing effect may not be sufficiently exhibited.
【０００５】そこで、本発明は車両の前面衝突時は勿
論、車両の斜め衝突時でも、センターメンバへ衝突荷重
を軸線方向へ入力させることができて、該センターメン
バの圧潰を良好に行わせて衝突エネルギー吸収効果を高
めることができる自動車の車体フロント構造を提供する
ものである。Therefore, according to the present invention, the collision load can be input to the center member in the axial direction not only during the frontal collision of the vehicle but also during the oblique collision of the vehicle, so that the center member can be crushed well. Provided is a vehicle body front structure capable of enhancing a collision energy absorbing effect.
【０００６】[0006]
【課題を解決するための手段】請求項１にあっては、車
体前後方向に延在する両側のフロントサイドメンバの前
端部に跨って結合したファーストクロスメンバに、エン
ジンルームの下側中央部に車体前後方向に延在するセン
ターメンバの前端部を結合した構造において、前記ファ
ーストクロスメンバをフロントサイドメンバの前端部に
対して後斜方向に結合してある。According to a first aspect of the present invention, there is provided a first cross member connected to the front end portions of front side members on both sides extending in the front-rear direction of the vehicle body, and a first central member at the lower center portion of the engine room. In the structure in which the front end portion of the center member extending in the front-rear direction of the vehicle body is joined, the first cross member is joined to the front end portion of the front side member in a rearward oblique direction.
【０００７】請求項２にあっては、前記センターメンバ
の前端部を一対の分岐部を持つ平面Ｙ字状に形成し、こ
れら分岐部をファーストクロスメンバの端部と共にフロ
ントサイドメンバの前端部に略直線状に結合してある。According to a second aspect of the present invention, the front end portion of the center member is formed in a flat Y shape having a pair of branch portions, and these branch portions are formed at the front end portion of the front side member together with the end portion of the first cross member. They are connected in a substantially straight line.
【０００８】請求項３にあっては、前記ファーストクロ
スメンバをその中央部が車体後方に向けて突出する平面
Ｖ字状に形成し、センターメンバの前端部を該ファース
トクロスメンバの中央部に結合してある。According to a third aspect of the present invention, the first cross member is formed in a V-shape having a central portion projecting toward the rear of the vehicle body, and the front end portion of the center member is joined to the central portion of the first cross member. I am doing it.
【０００９】[0009]
【作用】請求項１によれば、車両の斜め衝突時に衝突荷
重がフロントサイドメンバの前端部とファーストクロス
メンバの端部との結合部に斜め方向に作用すると、該衝
突荷重は後斜方向を向く該ファーストクロスメンバの端
部に軸線方向に入力すると共に、該ファーストクロスメ
ンバから該ファーストクロスメンバに前端部を結合した
センターメンバへ軸線方向に入力させ、該センターメン
バを後方へ圧潰させる。According to the first aspect of the present invention, when the collision load acts diagonally on the connecting portion between the front end of the front side member and the end of the first cross member at the time of the diagonal collision of the vehicle, the collision load is inclined rearward. An input is made in the axial direction at the end of the first cross member facing, and an input is made in the axial direction from the first cross member to the center member having the front end connected to the first cross member, and the center member is crushed rearward.
【００１０】請求項２によれば、車両衝突時に衝突荷重
がフロントサイドメンバの前端部とファーストクロスメ
ンバの端部との結合部に斜め方向に作用すると、該衝突
荷重は後斜方向を向く該ファーストクロスメンバの端部
と、該端部に結合したセンターメンバの分岐部とに略直
線状に入力すると共に、該分岐部からセンターメンバに
軸線方向に入力して、該センターメンバを後方へ圧潰さ
せる。According to the second aspect of the present invention, when the collision load acts diagonally on the joint between the front end of the front side member and the end of the first cross member during a vehicle collision, the collision load is directed rearward. The input to the end portion of the first cross member and the branch portion of the center member connected to the end portion in a substantially linear manner, and the input from the branch portion to the center member in the axial direction to crush the center member rearward. Let
【００１１】請求項３によれば、車両の斜め衝突時に衝
突荷重がフロントサイドメンバの前端部とファーストク
ロスメンバの端部との結合部に斜め方向に作用すると、
該衝突荷重は後斜方向を向く該ファーストクロスメンバ
の端部から、Ｖ字状に後方に向けて突出したファースト
クロスメンバの中央部に向けて軸線方向に入力すると共
に、該中央部に前端部を結合したセンターメンバに軸線
方向に入力して、該センターメンバを後方へ圧潰させ
る。According to the third aspect of the present invention, when the collision load acts on the connecting portion between the front end portion of the front side member and the end portion of the first cross member in an oblique direction when the vehicle obliquely collides,
The collision load is axially input from the end portion of the first cross member facing the rearward oblique direction toward the center portion of the first cross member protruding rearward in a V shape, and the front end portion is provided at the center portion. Is input in the axial direction to the joined center member to crush the center member rearward.
【００１２】[0012]
【実施例】以下、本発明実施例を図面と共に詳述する。Embodiments of the present invention will now be described in detail with reference to the drawings.
【００１３】図１において、１はエンジンルームＥ・Ｒ
の両側下部に車体前後方向に延在するフロントサイドメ
ンバで、これらフロントサイドメンバ１，１の前端部に
跨って、ファーストクロスメンバ２を結合してある。In FIG. 1, reference numeral 1 is an engine room E / R.
Front side members that extend in the front-rear direction of the vehicle body are formed on the lower portions of both sides of the first cross member 2 across the front end portions of the front side members 1 and 1.
【００１４】３はエンジンルームＥ・Ｒの下側中央部に
車体前後方向に延在して、図外のエンジンおよびトラン
スミッションからなるパワーユニットをマウント部材を
介して弾性支持するセンターメンバで、その前端部を前
記ファーストクロスメンバ２に結合してある。Reference numeral 3 designates a center member which extends in the front-rear direction of the vehicle body in the lower central portion of the engine room E / R and elastically supports a power unit (not shown) including an engine and a transmission through a mount member, and a front end portion thereof. Are connected to the first cross member 2.
【００１５】ここで、前記ファーストクロスメンバ２
は、その両端部２ａ，２ａを斜め前方に向けて曲折成形
してあって、これら両端部２ａ，２ａを前記フロントサ
イドメンバ１，１の前端部に後斜め方向に結合してあ
る。Here, the first cross member 2
Has both ends 2a, 2a bent and bent forward, and these ends 2a, 2a are joined to the front ends of the front side members 1, 1 in the rear oblique direction.
【００１６】また、本実施例では前記センターメンバ３
はその前端部を一対の分岐部３ａ，３ａを持つ平面Ｙ字
状に形成してあり、それらの端部をファーストクロスメ
ンバ２の端部２ａ，２ａの曲折基部に結合して、これら
端部２ａ，２ａと分岐部３ａ，３ａとが略直線状となる
ように結合配置してある。Further, in this embodiment, the center member 3 is used.
Has its front end formed in a plane Y shape having a pair of branch portions 3a, 3a, and these end portions are joined to the bent base portions of the end portions 2a, 2a of the first cross member 2 to form these end portions. The connecting portions 2a, 2a and the branch portions 3a, 3a are arranged so as to be substantially linear.
【００１７】以上の実施例構造によれば、車両の斜め衝
突時に衝突荷重がフロントサイドメンバ１の前端部とフ
ァーストクロスメンバ２の端部２ａとの結合部に、図１
の矢印Ｆで示すように斜め方向に作用すると、この衝突
荷重はファーストクロスメンバ２の後斜方向を向く端部
２ａに軸線方向に入力し、該ファーストクロスメンバ２
の反力が高められる。According to the structure of the above embodiment, the collision load is applied to the connecting portion between the front end portion of the front side member 1 and the end portion 2a of the first cross member 2 at the time of the oblique collision of the vehicle as shown in FIG.
When it acts diagonally as indicated by arrow F, the collision load is axially input to the end portion 2a of the first cross member 2 which faces the rear diagonal direction.
The reaction force of is increased.
【００１８】このため、フロントサイドメンバ１の前端
部分が前記衝突荷重の斜め方向入力による車幅方向の折
れ曲がりが抑制されて、該フロントサイドメンバ１に矢
印ｆ1 で示すように軸線方向へ衝突荷重を入力させるこ
とができると共に、ファーストクロスメンバ２に結合し
たセンターメンバ３にも矢印ｆ2 で示すように、その軸
線方向へ衝突荷重を入力させて、ファーストクロスメン
バ１と共にセンターメンバ３を軸方向へ圧潰させて、衝
突エネルギーを良好に吸収させることができる。Therefore, the front end portion of the front side member 1 is prevented from being bent in the vehicle width direction due to the oblique input of the collision load, and the front side member 1 is axially subjected to the collision load as indicated by an arrow f 1. it is possible to input, as indicated by the first cross member 2 arrow f 2 in center member 3 attached to, by inputting the impact load to the axial direction, the axial direction center member 3 with first cross member 1 The collision energy can be satisfactorily absorbed by crushing into.
【００１９】とりわけ、本実施例では前記センターメン
バ３はその前端部を平面Ｙ字状に形成して、分岐部３ａ
をファーストクロスメンバ２の端部２ａに略直線状に結
合してあるため、前記衝突荷重がファーストクロスメン
バ２の端部２ａからセンターメンバ３の分岐部３ａへ直
線状に入力して、センターメンバ３に軸線方向へ入力さ
せることができるため、該センターメンバ３をより一層
スムーズに変形させることができる。In particular, in this embodiment, the center member 3 has a front end portion formed in a Y-shape in a plane, and a branch portion 3a.
Is connected to the end portion 2a of the first cross member 2 in a substantially linear manner, the collision load is linearly input from the end portion 2a of the first cross member 2 to the branch portion 3a of the center member 3 and the center member 3 can be input in the axial direction, so that the center member 3 can be deformed more smoothly.
【００２０】図２に示す実施例は、ファーストクロスメ
ンバ２をその中央部が車体後方に向けて突出する平面Ｖ
字状に形成し、センターメンバ３の前端部を該ファース
トクロスメンバ２の車体後方に向けて突出した中央部に
結合してある。In the embodiment shown in FIG. 2, the first cross member 2 has a plane V whose central portion projects toward the rear of the vehicle body.
The center member 3 is formed in a letter shape, and the front end portion of the center member 3 is joined to the central portion of the first cross member 2 which projects toward the rear of the vehicle body.
【００２１】従って、この実施例の場合も、車両の斜め
衝突時に衝突荷重がフロントサイドメンバ１の前端部と
ファーストクロスメンバ２の端部との結合部に、図２の
矢印Ｆで示すように斜め方向に作用すると、この衝突荷
重は後斜方向を向く該当ファーストクロスメンバ２の端
部から、Ｖ字状に後方に向けて突出したファーストクロ
スメンバ２の中央部に向けて軸線方向に入力し、該ファ
ーストクロスメンバ２の反力が高められてフロントサイ
ドメンバ１の前端部分での折れ曲がりを抑制して、該フ
ロントサイドメンバ１に矢印ｆ1 で示すように軸線方向
へ衝突荷重を入力させることができると共に、ファース
トクロスメンバ２の中央部からセンターメンバ３へ矢印
ｆ2 で示すようにその軸線方向に衝突荷重を入力させる
ことができる。Therefore, also in the case of this embodiment, the collision load is applied to the connecting portion between the front end portion of the front side member 1 and the end portion of the first cross member 2 at the time of the oblique collision of the vehicle, as shown by the arrow F in FIG. When acting in an oblique direction, this collision load is input in the axial direction from the end of the corresponding first cross member 2 that faces the rearward oblique direction toward the center of the first cross member 2 that projects rearward in a V shape. , Increasing the reaction force of the first cross member 2 to suppress bending of the front side member 1 at the front end portion thereof, and causing the front side member 1 to input a collision load in the axial direction as indicated by arrow f 1. At the same time, the collision load can be input from the central portion of the first cross member 2 to the center member 3 in the axial direction of the center member 3 as indicated by arrow f 2 .
【００２２】この結果、フロントサイドメンバ１と共に
センターメンバ３を軸方向へ圧潰させて、衝突エネルギ
ーを良好に吸収させることができる。As a result, the center member 3 together with the front side member 1 can be crushed in the axial direction, and the collision energy can be absorbed well.
【００２３】尚、本発明構造を採った場合、従来のファ
ーストクロスメンバに比べ中央部がフロントサイドメン
バ前端より後方に位置することになるが、車両前後方向
の長さに制約があっても、図２に２点鎖線で例示する様
にラジエータ４をファーストクロスメンバの前側に位置
させたり、バンパ５をファーストクロスメンバ前端に直
接取付ける等により対応できるものである。When the structure of the present invention is adopted, the central portion is located rearward of the front end of the front side member as compared with the conventional first cross member, but even if the length in the vehicle front-rear direction is restricted, This can be dealt with by arranging the radiator 4 on the front side of the first cross member, as shown by a two-dot chain line in FIG. 2, or by directly attaching the bumper 5 to the front end of the first cross member.
【００２４】[0024]
【発明の効果】以上のように本発明によれば、車両の斜
め衝突時の衝突荷重をフロントサイドメンバ前端部に対
して後斜方向に結合したファーストクロスメンバに軸線
方向に入力させるため、該ファーストクロスメンバの反
力が高くフロントサイドメンバが前端部分で車幅方向に
折れ曲がるのを抑制して、該フロントサイドメンバに軸
線方向に衝突荷重を入力させることができると共に、フ
ァーストクロスメンバから該ファーストクロスメンバに
前端部を結合したセンターメンバへ軸線方向に衝突荷重
を入力させ、該センターメンバをフロントサイドメンバ
と共に後方へ座屈変形させて、衝突エネルギーを良好に
吸収させることができる。As described above, according to the present invention, since the collision load at the time of the oblique collision of the vehicle is input in the axial direction to the first cross member connected to the front end portion of the front side member in the rear oblique direction, The reaction force of the first cross member is high and the front side member can be prevented from being bent in the vehicle width direction at the front end portion to allow the front side member to input the collision load in the axial direction. A collision load can be input in the axial direction to the center member having the front end portion connected to the cross member, and the center member can be buckled and deformed rearward together with the front side member to absorb the collision energy well.
【図１】本発明の第１実施例を示す略示的平面図。FIG. 1 is a schematic plan view showing a first embodiment of the present invention.
【図２】本発明の第２実施例を示す略示的平面図。FIG. 2 is a schematic plan view showing a second embodiment of the present invention.
１ フロントサイドメンバ ２ ファーストクロスメンバ ３ センターメンバ Ｅ・Ｒ エンジンルーム 1 Front side member 2 First cross member 3 Center member E / R engine room
Claims (3)
サイドメンバの前端部に跨って結合したファーストクロ
スメンバに、エンジンルームの下側中央部に車体前後方
向に延在するセンターメンバの前端部を結合した構造に
おいて、前記ファーストクロスメンバをフロントサイド
メンバの前端部に対して後斜方向に結合したことを特徴
とする自動車の車体フロント構造。1. A front end portion of a center member extending in the vehicle body front-rear direction at a lower center portion of an engine room to a first cross member connected to front end portions of front side members on both sides extending in the vehicle body front-rear direction. In the vehicle body front structure, the first cross member is connected to the front end portion of the front side member in a rearward oblique direction.
を持つ平面Ｙ字状に形成し、これら分岐部をファースト
クロスメンバの端部に略直線状に結合したことを特徴と
する請求項１記載の自動車の車体フロント構造。2. The front end portion of the center member is formed in a plane Y shape having a pair of branch portions, and the branch portions are connected to the end portions of the first cross member in a substantially straight line shape. Front body structure of the car described.
車体後方に向けて突出する平面Ｖ字状に形成し、センタ
ーメンバの前端部を該ファーストクロスメンバの中央部
に結合したことを特徴とする請求項１記載の自動車の車
体フロント構造。3. The first cross member is formed in a plane V shape whose central portion projects toward the rear of the vehicle body, and the front end portion of the center member is joined to the central portion of the first cross member. Item 1. A vehicle body front structure according to Item 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30407093A JPH07156828A (en) | 1993-12-03 | 1993-12-03 | Front body structure of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30407093A JPH07156828A (en) | 1993-12-03 | 1993-12-03 | Front body structure of automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07156828A true JPH07156828A (en) | 1995-06-20 |
Family
ID=17928673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30407093A Pending JPH07156828A (en) | 1993-12-03 | 1993-12-03 | Front body structure of automobile |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07156828A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105313971A (en) * | 2014-07-30 | 2016-02-10 | 贺杰 | Foldable-beam vehicle |
| KR20210012367A (en) * | 2019-07-25 | 2021-02-03 | 현대자동차주식회사 | Front body for vehicle |
-
1993
- 1993-12-03 JP JP30407093A patent/JPH07156828A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105313971A (en) * | 2014-07-30 | 2016-02-10 | 贺杰 | Foldable-beam vehicle |
| KR20210012367A (en) * | 2019-07-25 | 2021-02-03 | 현대자동차주식회사 | Front body for vehicle |
| US11124244B2 (en) | 2019-07-25 | 2021-09-21 | Hyundai Motor Company | Front body for vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0990577A2 (en) | Front body structure of vehicle | |
| JP3079131B2 (en) | Vehicle drive engine layout | |
| JP3289629B2 (en) | Body front structure | |
| JPH1076889A (en) | Bumper reinforce | |
| JP2002067840A (en) | Bumber reinforcement structure | |
| JP4114473B2 (en) | Bumper structure for vehicles | |
| JP3045337B2 (en) | Car front structure | |
| JP3771721B2 (en) | Front body structure of the vehicle | |
| JP4269598B2 (en) | Body front structure | |
| KR100644942B1 (en) | Structure for lower part clash dispersion of a floor | |
| JPH07156828A (en) | Front body structure of automobile | |
| JP3357234B2 (en) | Car front side member structure | |
| JP3861622B2 (en) | Auto body front structure | |
| JPH09169283A (en) | Front frame structure of vehicle | |
| JP3275750B2 (en) | Automotive bumper | |
| JP2002308153A (en) | Side body structure for compact car | |
| JP4015725B2 (en) | Railcar frame | |
| JP2585451B2 (en) | Car body front structure | |
| JP4394894B2 (en) | Rear floor structure | |
| JP2553127Y2 (en) | License plate bracket | |
| JP2581156Y2 (en) | Car body front structure | |
| JPH10181486A (en) | Attachment structure for front grill guard of vehicle | |
| KR100329058B1 (en) | Under longitudinal plate of vehicle | |
| JPH05229452A (en) | Front part car body structure of automobile | |
| JPH0243828Y2 (en) |