JPH1086846A - Chassis frame and body construction of automobile - Google Patents

Chassis frame and body construction of automobile

Info

Publication number
JPH1086846A
JPH1086846A JP24238396A JP24238396A JPH1086846A JP H1086846 A JPH1086846 A JP H1086846A JP 24238396 A JP24238396 A JP 24238396A JP 24238396 A JP24238396 A JP 24238396A JP H1086846 A JPH1086846 A JP H1086846A
Authority
JP
Japan
Prior art keywords
section
closed cross
vehicle body
bead
body structure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP24238396A
Other languages
Japanese (ja)
Other versions
JP3867324B2 (en
Inventor
Eiichi Akaishi
永一 赤石
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP24238396A priority Critical patent/JP3867324B2/en
Publication of JPH1086846A publication Critical patent/JPH1086846A/en
Application granted granted Critical
Publication of JP3867324B2 publication Critical patent/JP3867324B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Body Structure For Vehicles (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide an automobile chassis frame and body construction in which a closed cross section part can be surely bent from a bead part when a load is applied without requiring formation of a specially deep bead part. SOLUTION: As chambered parts 10 are formed in car body outside ridge line parts R1 , R2 behind a bead part 8, these parts alone are formed into shapes with pentagonal cross sections and provided with strength higher than that for other parts. In this way, the chamfered parts 10 for reinforcement are formed behind the bead part 8 used for reducing the strength, so that strength in the longitudinal direction of the closed cross section part 3 is drastically changed in the bead part 8, and as a result, fracture surely starts from the bead part 8 when a load is applied to the closed cross section part 3.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】この発明は、カウルサイド側
部材とフードリッジレインフォースとで車体前後方向に
沿う閉断面部を形成した自動車の車体構造に関するもの
である。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automobile body structure in which a cowl side member and a hood ridge reinforcement form a closed cross section along the vehicle longitudinal direction.

【0002】[0002]

【従来の技術】車体前部の左右両側には、フードリッ
ジ、カウルサイドパネル、ダッシュアッパパネル等のカ
ウルサイド側部材と、フードリッジレインフォースとで
車体前後方向に沿う断面四角形の閉断面部が形成されて
いる(類似技術として、実開平4−132878号公報
参照)。この種の閉断面部は前端から荷重を受けた際
に、折れるように変形することで効率良くエネルギー吸
収できることが知られている。そこで、従来は閉断面部
の安定した折れ変形モードを得るために、閉断面の所定
位置に折れを促進させるためのビード部を凹設してい
た。
2. Description of the Related Art A cowl side member such as a hood ridge, a cowl side panel, a dash upper panel, and a hood ridge reinforce are provided on both left and right sides of a front portion of a vehicle body with a closed cross section having a rectangular cross section along the vehicle longitudinal direction. (Refer to Japanese Utility Model Laid-Open No. 4-12878 as a similar technique). It is known that a closed section of this type can efficiently absorb energy by deforming so as to break when receiving a load from the front end. Therefore, conventionally, in order to obtain a stable bending deformation mode of the closed cross-section, a bead portion for promoting the bending is provided at a predetermined position of the closed cross-section.

【0003】[0003]

【発明が解決しようとする課題】しかしながら、このよ
うな従来の技術にあっては、閉断面部に折れ促進用のビ
ード部が設けられているものの、荷重が加わる角度や、
閉断面部周辺の構造等の要因によって、閉断面部がビー
ド部以外の部分から折れる場合がある。閉断面部がビー
ド部以外の部分で折れる場合は、どうしても折れ曲がる
程度が小さく、十分なエネルギー吸収を行えないおそれ
がある。従って、従来はそのための対策として、ビード
部で確実に折れるように、ビード部の深さを増したり、
ビード部を複数本設けたりする必要があり、閉断面部自
体の成形が困難になっている。
However, in such a conventional technique, although a bead portion for promoting the folding is provided in the closed cross section, the angle at which a load is applied,
Due to factors such as the structure around the closed cross section, the closed cross section may be broken from a portion other than the bead portion. When the closed cross section is broken at a portion other than the bead portion, the degree of bending is inevitably small, and sufficient energy absorption may not be performed. Therefore, conventionally, as a countermeasure for that, to increase the depth of the bead to ensure that the bead breaks,
It is necessary to provide a plurality of bead portions, and it is difficult to form the closed section itself.

【0004】この発明はこのような従来の技術に着目し
てなされたものであり、ビード部を特別に深く形成した
り、多数形成したりしなくても、荷重を受けた際に閉断
面部がビード部から確実に折れる自動車の車体構造を提
供するものである。
The present invention has been made by paying attention to such a conventional technique. Even if a bead portion is not particularly deeply formed or a large number of bead portions are formed, when a load is applied, a closed cross-section portion is formed. Provide a vehicle body structure that can be reliably broken from a bead portion.

【0005】[0005]

【課題を解決するための手段】請求項1記載の発明は、
車体前部の左右両側にカウルサイド側部材とフードリッ
ジレインフォースとで車体前後方向に沿う断面四角形の
閉断面部を形成し、該閉断面部の後部上面に車幅方向に
沿ったビード部を凹設した自動車の車体構造であって、
前記ビード部の後方の車体外側稜線部に面取部を形成し
たものである。ここで、「断面四角形」とはリブやフラ
ンジを含まない閉断面部の主要部だけの断面形状を表し
たものである。
According to the first aspect of the present invention,
A cowl side member and a hood ridge reinforcement form a closed cross section of a rectangular cross section along the vehicle front and rear direction on both left and right sides of the front of the vehicle body, and a bead section along the vehicle width direction on the rear upper surface of the closed cross section. A recessed automobile body structure,
A chamfered portion is formed at a vehicle body outer ridgeline portion behind the bead portion. Here, the “quadrangular cross-section” indicates a cross-sectional shape of only the main part of the closed cross-section that does not include the ribs and the flange.

【0006】請求項1記載の発明によれば、ビード部の
後方の車体外側稜線部に面取部が形成されているため、
この部分だけ断面五角形となり他の部分よりも強度が向
上する。このように、強度を低下させるめのビード部の
後方に、強度を高めるための面取部が形成されているた
め、ビード部において閉断面部の長手方向における強度
が急変することになり、閉断面部に荷重が加わるとビー
ド部から確実に折れるようになる。
According to the first aspect of the present invention, since the chamfered portion is formed at the outer edge of the vehicle body behind the bead portion,
Only this portion becomes a pentagonal cross section, and the strength is improved as compared with other portions. As described above, since the chamfered portion for increasing the strength is formed behind the bead portion for decreasing the strength, the strength of the bead portion in the longitudinal direction of the closed cross section suddenly changes, and the bead portion is closed. When a load is applied to the cross section, the bead is reliably broken from the bead.

【0007】請求項2記載の発明は、ビード部が閉断面
部の上面から外側面にかけて形成されている。
In the invention according to claim 2, the bead portion is formed from the upper surface to the outer surface of the closed cross section.

【0008】請求項2記載の発明によれば、ビード部が
閉断面部の上面から外側面にかけて形成されているた
め、閉断面部上面の前側から侵入してきた水をビード部
で捕捉して車体外側へ排出することができる。
According to the second aspect of the present invention, since the bead portion is formed from the upper surface of the closed cross section to the outer surface, water entering from the front side of the upper surface of the closed cross section is captured by the bead portion and the vehicle body is formed. Can be discharged to the outside.

【0009】請求項3記載の発明は、閉断面部の面取部
に裏側から補強パネルを接合したものである。
According to a third aspect of the present invention, a reinforcing panel is joined to a chamfer of a closed cross section from the back side.

【0010】請求項3記載の発明によれば、閉断面部の
面取部に裏側から補強パネルが接合されているため、面
取部の強度が更に向上し、閉断面部がビード部から更に
確実に折れ易くなる。
According to the third aspect of the present invention, since the reinforcing panel is joined to the chamfered portion of the closed cross section from the back side, the strength of the chamfered portion is further improved, and the closed cross section is further increased from the bead portion. It will surely break easily.

【0011】請求項4記載の発明は、閉断面部の上面に
おけるビード部よりも後方の補強パネルを接合した部分
に、エンジンフードヒンジが取付けられている。
According to a fourth aspect of the present invention, an engine hood hinge is attached to a portion of the upper surface of the closed cross section where the reinforcing panel is joined to the rear of the bead portion.

【0012】請求項4記載の発明によれば、閉断面部の
上面におけるビード部よりも後方の補強パネルを接合し
た部分に、エンジンフードヒンジが取付けられているた
め、補強パネルによりエンジンフードヒンジの取付剛性
が向上すると共に、ビード部により閉断面部上面の前側
から侵入してきた水がエンジンフードヒンジに達するの
を防止でき、該エンジンフードヒンジ部分における錆な
どの発生を抑制することができる。
According to the fourth aspect of the present invention, the engine hood hinge is attached to a portion of the upper surface of the closed cross section where the reinforcement panel is joined to the rear of the bead portion. The mounting rigidity is improved, and water entering from the front side of the upper surface of the closed cross section can be prevented from reaching the engine hood hinge by the bead portion, and generation of rust or the like at the engine hood hinge portion can be suppressed.

【0013】請求項5記載の発明は、左右閉断面部の後
部上面間に車幅方向に沿うカウルトップパネルが設けら
れ、該カウルトップパネルに形成された排水溝がビード
部と連続している。
According to a fifth aspect of the present invention, a cowl top panel is provided between the rear upper surfaces of the left and right closed cross sections along the vehicle width direction, and a drain groove formed in the cowl top panel is continuous with the bead portion. .

【0014】請求項5記載の発明によれば、カウルトッ
プパネルの排水溝とビード部とが連続しているため、排
水溝からの排水が促進される。
According to the fifth aspect of the present invention, since the drainage groove of the cowl top panel and the bead portion are continuous, drainage from the drainage groove is promoted.

【0015】請求項6記載の発明は、閉断面部の外側面
の下端部にエンボス部を凸設して、エアボックスから閉
断面部内に侵入してきた水を排出するための排水口を形
成したものである。
According to a sixth aspect of the present invention, an embossed portion is provided at the lower end of the outer surface of the closed cross section to form a drain port for discharging water that has entered the closed cross section from the air box. Things.

【0016】請求項6記載の発明によれば、エンボス部
により形成された排水口から閉断面部内に侵入してきた
水を確実に排出することができる。また、エンボス部も
ビード部と同様に強度が低いため、このエンボス部の形
成により閉断面部の折れも促進される。
According to the sixth aspect of the present invention, it is possible to reliably discharge water that has entered the closed cross section from the drain formed by the embossed portion. Further, since the embossed portion has low strength similarly to the bead portion, the formation of the embossed portion also promotes the breakage of the closed cross section.

【0017】請求項7記載の発明は、ビード部とエンボ
ス部の前後位置が一致している。
In the invention according to claim 7, the front and rear positions of the bead portion and the embossed portion coincide.

【0018】請求項7記載の発明によれば、エンボス部
とビード部の前後位置が一致しているため、閉断面部の
折れが更に促進される。
According to the seventh aspect of the present invention, since the front and rear positions of the embossed portion and the bead portion coincide with each other, the folding of the closed cross section is further promoted.

【0019】請求項8記載の発明は、閉断面部における
最後端部の外側面が一般部の外側面に対して車幅方向で
オフセットしており、面取部の内側の稜線部が内側に位
置する方の外側面の稜線部と平面視で直線的に連続し、
且つ面取部の外側の稜線部が外側に位置する方の外側面
の稜線部と平面視で直線的に連続している。
In the invention according to claim 8, the outer surface of the rearmost end in the closed cross section is offset in the vehicle width direction with respect to the outer surface of the general portion, and the ridge portion inside the chamfered portion is inward. It is linearly continuous with the ridgeline part of the outer surface located in plan view,
In addition, the ridge portion on the outside of the chamfered portion is linearly continuous with the ridge portion on the outer surface located on the outside in a plan view.

【0020】請求項8記載の発明によれば、閉断面部に
おける最後端部の外側面が一般部の外側面に対して車幅
方向でオフセットしていながら、内側に位置する方の外
側面の稜線部と、外側に位置する方の外側面の稜線部と
が、それぞれ面取部の対応する稜線部と平面視で直線的
に連続するため、面取部における強度の低下が防止さ
れ、ビード部での折れを促進する面取部本来の機能を維
持することができる。
According to the eighth aspect of the present invention, while the outer surface of the rearmost end in the closed cross section is offset in the vehicle width direction with respect to the outer surface of the general portion, the outer surface of the inner side located on the inner side is offset. Since the ridge line portion and the ridge line portion of the outer surface located on the outer side are respectively linearly continuous with the corresponding ridge line portion of the chamfered portion in plan view, a decrease in strength at the chamfered portion is prevented, and It is possible to maintain the original function of the chamfered portion which promotes bending at the portion.

【0021】[0021]

【発明の実施の形態】以下、この発明の好適な実施形態
を図1〜図6に基づいて説明する。「カウルサイド側部
材」としてのフードリッジ1、及びフードリッジレイン
フォース2は互いに断面L形状をしており、両者を接合
することにより車体前後方向に沿った断面四角形の閉断
面部3が形成される。この閉断面部3は車体の左右両側
に形成されているが、図では左側部分だけを代表して図
示している。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to FIGS. The hood ridge 1 and the hood ridge reinforce 2 as the “cowl side member” have an L-shaped cross section, and a closed cross section 3 having a quadrangular cross section along the vehicle longitudinal direction is formed by joining them. You. The closed section 3 is formed on both the left and right sides of the vehicle body, but only the left side is shown in the figure as a representative.

【0022】左右の閉断面部3の上面3aにおける後部
間には、エアボックスEの上部を形成するカウルトップ
パネル4が車幅方向に沿って設けられている。尚、エア
ボックスEの前壁はカウルフロントパネル5により形成
され、底壁及び後壁は断面L形のダッシュアッパパネル
6より形成されている(図5参照)。フードリッジ1の
内側面3bの下端部にはエアボックスEに連通する開口
7が形成されており、該開口7を介してエアボックスE
内に侵入した水W1 を閉断面部3内へ導けるようになっ
ている。
A cowl top panel 4 forming the upper part of the air box E is provided along the vehicle width direction between the rear portions of the upper surface 3a of the left and right closed cross-sections 3. The front wall of the air box E is formed by the cowl front panel 5, and the bottom wall and the rear wall are formed by the dash upper panel 6 having an L-shaped cross section (see FIG. 5). An opening 7 communicating with the air box E is formed at the lower end of the inner side surface 3b of the hood ridge 1, and the air box E is opened through the opening 7.
The water W 1 that has entered the inside can be guided into the closed section 3.

【0023】カウルトップパネル4の前端には排水溝4
aが長手方向に沿って形成されている。閉断面部3の排
水溝4aに対応する位置には、閉断面部3の上面3aか
ら外側面3cにかけてビード部8が凹設されている。ビ
ード部8の端部は排水溝4aの端部に若干オーバラップ
した状態で連続しており、排水溝4aから流れたきた水
2 を車体外側へ確実に排出できるようになっている。
At the front end of the cowl top panel 4, a drain groove 4 is provided.
a is formed along the longitudinal direction. At a position corresponding to the drain groove 4a of the closed cross section 3, a bead portion 8 is recessed from the upper surface 3a to the outer side surface 3c of the closed cross section 3. End of the bead portion 8 is adapted to be reliably discharged is continuous in a state of slightly overlaps the end portion of the drainage groove 4a, north water W 2 flowing from the drain grooves 4a to the outside of the vehicle body.

【0024】閉断面部3の後端部はフロントピラー9の
下部に接続されている。このフロントピラー9に接続さ
れている閉断面部3の最後端部における外側面3dは、
斜面部3eを介して、一般部の外側面3cよりも車幅方
向で内側に位置している。従って、閉断面部3の最後端
部における車体外側稜線部R1 も一般部の稜線部R2
りも内側に位置している。
The rear end of the closed section 3 is connected to the lower part of the front pillar 9. The outer surface 3d at the rearmost end of the closed cross section 3 connected to the front pillar 9 is:
It is located on the inner side in the vehicle width direction than the outer side surface 3c of the general portion via the slope portion 3e. Therefore, is located inside the ridge portion R 2 of the vehicle body outer side ridgeline portion R 1 also general portion of the rearmost portion of the closed-section portion 3.

【0025】そして、ビード部8の後方の前記稜線部R
1 、R2 には面取部10が形成されており、この面取部
10を形成した部分だけ閉断面部3が変則的な断面五角
形を呈している(図4参照)。。
Then, the ridge line portion R behind the bead portion 8 is formed.
1, the R 2 are chamfered portion 10 is formed, only the portion formed with the chamfered portion 10 closed-section portion 3 and has a irregular section pentagon (see Fig. 4). .

【0026】面取部10は車幅方向での位置が相違する
前側の稜線部R2 から後側の稜線部R1 にかけて形成さ
れたものでありながら、図3に示すように、面取部10
の内側の稜線部R3 が内側に位置する方の外側面(最後
端部)3dの稜線部R1 と平面視で直線的に連続し、ま
た面取部10の外側の稜線部R4 が外側に位置する方の
外側面(一般部)3cの稜線部R2 と平面視で直線的に
連続している。
[0026] While are those chamfered portion 10 is formed over the ridge portion R 1 of the rear from the front of the ridge R 2 having a different position in the vehicle width direction, as shown in FIG. 3, the chamfered portion 10
Outer surface of the inner ridge portion R 3 towards situated inside linearly continuous ridge R 1 and plan view (last end) 3d, also the outer ridge portion R 4 of the chamfered portion 10 It is linearly continuous toward the outer surface (general portion) 3c ridge portion R 2 in a plan view of which is located outside.

【0027】この面取部10部分には、その裏側から上
面3aから外側面3c等にかけて概略断面L形の補強パ
ネル11が接合されている。そして、この補強パネル1
1が接合されている部分で且つビード部8よりも後方の
上面3aには、図示せぬエンジンフードの開閉支点とな
るエンジンフードヒンジ12が取付けられている。
The reinforcement panel 11 having a substantially L-shaped cross section is joined to the chamfered portion 10 from the back side to the upper surface 3a to the outer surface 3c and the like. And this reinforcement panel 1
An engine hood hinge 12 serving as an opening / closing fulcrum of an engine hood (not shown) is attached to the upper surface 3a behind the bead portion 8 at the portion where the joint 1 is joined.

【0028】更に、閉断面部3の外側面3cの下端部に
おけるビード部8と同じ前後位置にはエンボス部13が
形成されており、該エンボス部13により下向きに開口
した排水口13aが形成される。従って、エアボックス
Eから開口7を介して閉断面部3内に導入された水W1
は、この排水口13aから外側へ排出される。
Further, an embossed portion 13 is formed at the lower end of the outer surface 3c of the closed cross section 3 at the same front and rear position as the bead portion 8, and the embossed portion 13 forms a drain port 13a which is opened downward. You. Therefore, the water W 1 introduced into the closed section 3 from the air box E via the opening 7.
Is discharged outward from the drain 13a.

【0029】次に、閉断面部3の前端に後向きの荷重F
が加わった場合の作用を説明する。閉断面部3に荷重F
が加わると、閉断面部3は強度的に弱いビード部8から
折れようとする。この実施形態では、特にビード部8の
後方に面取部10が形成されているため、この部分の強
度が他の部分よりも向上している。従って、強度を低下
させたビード部8の後方に、強度を高めた面取部10が
形成されているため、ビード部8において閉断面部3の
長手方向における強度が急変することになり、該ビード
部8から確実に折れるようになる。
Next, a rearward load F is applied to the front end of the closed section 3.
The operation in the case where is added will be described. Load F on closed section 3
Is added, the closed section 3 tends to break from the bead 8 which is weak in strength. In this embodiment, in particular, since the chamfered portion 10 is formed behind the bead portion 8, the strength of this portion is improved as compared with other portions. Therefore, since the chamfered portion 10 having increased strength is formed behind the bead portion 8 having reduced strength, the strength of the bead portion 8 in the longitudinal direction of the closed cross section 3 is suddenly changed. The bead portion 8 can be reliably broken.

【0030】しかも、ビード部8と同じ前後位置に閉断
面部3の強度を更に低下させるエンボス部13が形成さ
れており、また面取部10の裏側に該面取部10の強度
を更に高める補強パネル11が接合されているため、閉
断面部3は更に確実にビード部8から折れ易くなる。
Further, an embossed portion 13 for further reducing the strength of the closed section 3 is formed at the same front and rear position as the bead portion 8, and the strength of the chamfered portion 10 is further increased on the back side of the chamfered portion 10. Since the reinforcing panel 11 is joined, the closed cross section 3 is more easily broken from the bead section 8.

【0031】更に、この実施形態では、閉断面部3にお
ける最後端部の外側面3dが一般部の外側面3cに対し
て車幅方向で内側にオフセットした構造でありながら、
内側に位置する稜線部R1 と、外側に位置する稜線部R
2 とが、それぞれ面取部10の対応する各稜線部R3
4 と平面視で直線的に連続しているため(図3参
照)、面取部10における強度の低下が防止され、面取
部10の本来的な機能(ビード部8での折れを促進)を
維持することができる。つまり、このようにしないと、
稜線部R1 、R2 と稜線部R3 、R4 とが平面視で直線
的につながらず、オフセット部分で面取部10での強度
を低下させてしまうおそれがあるため、そのようなこと
を防止するために稜線部R1 、R2 と稜線部R3 、R4
とを少なくとも平面視において直線的に連続させたもの
である。
Further, in this embodiment, while the outer surface 3d at the rearmost end of the closed section 3 is offset inward in the vehicle width direction with respect to the outer surface 3c of the general portion,
Ridge part R 1 located on the inside and Ridge part R located on the outside
2 corresponds to each ridge line portion R 3 of the chamfered portion 10,
Since R 4 is linearly continuous in a plan view (see FIG. 3), the strength of the chamfered portion 10 is prevented from lowering, and the original function of the chamfered portion 10 (the beading at the bead portion 8 is promoted). ) Can be maintained. In other words, if you do not do this,
The ridges R 1 , R 2 and the ridges R 3 , R 4 do not connect linearly in a plan view, and the strength of the chamfered portion 10 may be reduced at the offset portion. Ridges R 1 , R 2 and ridges R 3 , R 4
Are linearly continuous at least in plan view.

【0032】また、このビード部8は閉断面部3が折れ
る場合のポイントになるだけでなく、閉断面部3におけ
る上面3aの前側から侵入してきた水W3 (図1参照)
を捕捉して、車体外側へ排出する機能も有する。この水
3 がそのまま後側へ流れ、エンジンフードヒンジ12
に達すると、エンジンフードヒンジ12と上面3aとの
隙間に水W3 が残り、錆などを発生させる原因となるた
め、そのような水W3の流れをこのビード部8により止
めている。
The bead portion 8 is not only a point when the closed section 3 is broken, but also the water W 3 that has entered from the front side of the upper surface 3a in the closed section 3 (see FIG. 1).
It also has the function of catching and discharging to the outside of the vehicle body. The water W 3 flows to the rear side as it is, the engine hood hinge 12
, Water W 3 remains in the gap between the engine hood hinge 12 and the upper surface 3 a, causing rust and the like. Therefore, the flow of such water W 3 is stopped by the bead portion 8.

【0033】更に、上面3aの補強パネル11が接合さ
れた部分にエンジンフードヒンジ12が取付けられてい
るため、エンジンフードヒンジ12の取付強度も高くな
っている。
Further, since the engine hood hinge 12 is attached to the portion of the upper surface 3a where the reinforcing panel 11 is joined, the attachment strength of the engine hood hinge 12 is also increased.

【0034】[0034]

【発明の効果】請求項1記載の発明によれば、ビード部
の後方の車体外側稜線部に面取部が形成されているた
め、この部分だけ断面五角形となり他の部分よりも強度
が向上する。このように、強度を低下させるめのビード
部の後方に、強度を高めるための面取部が形成されてい
るため、ビード部において閉断面部の長手方向における
強度が急変することになり、閉断面部に荷重が加わると
ビード部から確実に折れるようになる。
According to the first aspect of the present invention, since the chamfered portion is formed at the outer ridge of the vehicle body behind the bead portion, only this portion has a pentagonal cross section, and the strength is improved as compared with other portions. . As described above, since the chamfered portion for increasing the strength is formed behind the bead portion for decreasing the strength, the strength of the bead portion in the longitudinal direction of the closed cross section suddenly changes, and the bead portion is closed. When a load is applied to the cross section, the bead is reliably broken from the bead.

【0035】請求項2記載の発明によれば、ビード部が
閉断面部の上面から外側面にかけて形成されているた
め、閉断面部上面の前側から侵入してきた水をビード部
で捕捉して車体外側へ排出することができる。
According to the second aspect of the present invention, since the bead portion is formed from the upper surface of the closed cross section to the outer surface, water that has entered from the front side of the upper surface of the closed cross section is captured by the bead portion and the vehicle body is formed. Can be discharged to the outside.

【0036】請求項3記載の発明によれば、閉断面部の
面取部に裏側から補強パネルが接合されているため、面
取部の強度が更に向上し、閉断面部がビード部から更に
確実に折れ易くなる。
According to the third aspect of the present invention, since the reinforcing panel is joined to the chamfered portion of the closed cross section from the back side, the strength of the chamfered portion is further improved, and the closed cross section is further increased from the bead portion. It will surely break easily.

【0037】請求項4記載の発明によれば、閉断面部の
上面におけるビード部よりも後方の補強パネルを接合し
た部分に、エンジンフードヒンジが取付けられているた
め、補強パネルによりエンジンフードヒンジの取付剛性
が向上すると共に、ビード部により閉断面部上面の前側
から侵入してきた水がエンジンフードヒンジに達するの
を防止でき、該エンジンフードヒンジ部分における錆な
どの発生を抑制することができる。
According to the fourth aspect of the present invention, the engine hood hinge is attached to a portion of the upper surface of the closed cross-section where the reinforcement panel is joined to the rear of the bead portion. The mounting rigidity is improved, and water entering from the front side of the upper surface of the closed cross section can be prevented from reaching the engine hood hinge by the bead portion, and generation of rust or the like at the engine hood hinge portion can be suppressed.

【0038】請求項5記載の発明によれば、カウルトッ
プパネルの排水溝とビード部とが連続しているため、排
水溝からの排水が促進される。
According to the fifth aspect of the present invention, since the drain groove of the cowl top panel and the bead portion are continuous, drainage from the drain groove is promoted.

【0039】請求項6記載の発明によれば、エンボス部
により形成された排水口から閉断面部内に侵入してきた
水を確実に排出することができる。また、エンボス部も
ビード部と同様に強度が低いため、このエンボス部の形
成により閉断面部の折れも促進される。
According to the sixth aspect of the present invention, it is possible to reliably discharge water that has entered the closed cross-section from the drain formed by the embossed portion. Further, since the embossed portion has low strength similarly to the bead portion, the formation of the embossed portion also promotes the breakage of the closed cross section.

【0040】請求項7記載の発明によれば、エンボス部
とビード部の前後位置が一致しているため、閉断面部の
折れが更に促進される。
According to the seventh aspect of the present invention, since the front and rear positions of the embossed portion and the bead portion coincide with each other, the folding of the closed cross-section portion is further promoted.

【0041】請求項8記載の発明によれば、閉断面部に
おける最後端部の外側面が一般部の外側面に対して車幅
方向でオフセットしていながら、内側に位置する方の外
側面の稜線部と、外側に位置する方の外側面の稜線部と
が、それぞれ面取部の対応する稜線部と平面視で直線的
に連続するため、面取部における強度の低下が防止さ
れ、ビード部での折れを促進する面取部本来の機能を維
持することができる。
According to the eighth aspect of the invention, while the outer surface of the rearmost end in the closed cross section is offset in the vehicle width direction with respect to the outer surface of the general portion, the outer surface of the inner side located on the inner side is offset. Since the ridge line portion and the ridge line portion of the outer surface located on the outer side are respectively linearly continuous with the corresponding ridge line portion of the chamfered portion in plan view, a decrease in strength at the chamfered portion is prevented, and It is possible to maintain the original function of the chamfered portion which promotes bending at the portion.

【図面の簡単な説明】[Brief description of the drawings]

【図1】この発明の実施形態に係る自動車の車体構造を
示す斜視図。
FIG. 1 is a perspective view showing a vehicle body structure of an automobile according to an embodiment of the present invention.

【図2】面取部を示す拡大斜視図。FIG. 2 is an enlarged perspective view showing a chamfer.

【図3】図2中矢示DA部分から見た面取部の平面図。FIG. 3 is a plan view of the chamfered portion as viewed from a portion indicated by an arrow DA in FIG. 2;

【図4】図1中矢示SA−SA線に沿う断面図。FIG. 4 is a sectional view taken along the line SA-SA shown in FIG.

【図5】図1中矢示SB−SB線に沿う断面図。FIG. 5 is a sectional view taken along the line SB-SB shown in FIG. 1;

【図6】閉断面部が折れた状態を示す側面図。FIG. 6 is a side view showing a state where a closed cross section is broken.

【符号の説明】[Explanation of symbols]

1 フードリッジ(カウルサイド側部材) 2 フードリッジレインフォース 3 閉断面部 3a 上面 3c、3d 外側面 4 カウルトップパネル 4a 排水溝 8 ビード部 10 面取部 11 補強パネル 12 エンジンフードヒンジ 13 エンボス部 13a 排水口 R1 〜R4 稜線部 W1 〜W3 1 Hood Ridge (Cowl Side Side Member) 2 Hood Ridge Reinforce 3 Closed Section 3a Upper Surface 3c, 3d Outer Side 4 Cowl Top Panel 4a Drain 8 Bead 10 Chamfer 11 Reinforcement Panel 12 Engine Hood Hinge 13 Emboss 13a discharge port R 1 to R 4 ridge W 1 to W-3 water

Claims (8)

【特許請求の範囲】[Claims] 【請求項1】 車体前部の左右両側にカウルサイド側部
材とフードリッジレインフォースとで車体前後方向に沿
う断面四角形の閉断面部を形成し、該閉断面部の後部上
面に車幅方向に沿ったビード部を凹設した自動車の車体
構造であって、 前記ビード部の後方の車体外側稜線部に面取部を形成し
たことを特徴とする自動車の車体構造。
1. A closed cross section having a quadrangular cross section along the front and rear direction of a vehicle body is formed by a cowl side member and a hood ridge reinforcement on both left and right sides of a front portion of the vehicle body. A vehicle body structure in which a bead portion along the vehicle body is recessed, wherein a chamfered portion is formed at a vehicle body outer ridge portion behind the bead portion.
【請求項2】 ビード部が閉断面部の上面から外側面に
かけて形成されている請求項1記載の自動車の車体構
造。
2. The vehicle body structure of an automobile according to claim 1, wherein the bead portion is formed from the upper surface to the outer surface of the closed cross section.
【請求項3】 閉断面部の面取部に裏側から補強パネル
を接合した請求項1又は請求項2記載の自動車の車体構
造。
3. The vehicle body structure according to claim 1, wherein a reinforcing panel is joined to the chamfered portion of the closed cross section from the back side.
【請求項4】 閉断面部の上面におけるビード部よりも
後方の補強パネルを接合した部分に、エンジンフードヒ
ンジが取付けられている請求項3記載の自動車の車体構
造。
4. The vehicle body structure of an automobile according to claim 3, wherein an engine hood hinge is attached to a portion of the upper surface of the closed cross section where the reinforcing panel is joined to the rear of the bead portion.
【請求項5】 左右閉断面部の後部上面間に車幅方向に
沿うカウルトップパネルが設けられ、該カウルトップパ
ネルに形成された排水溝がビード部と連続している請求
項2〜4のいずれか1項に記載の自動車の車体構造。
5. The cowl top panel is provided between the rear upper surfaces of the left and right closed cross-section portions along the vehicle width direction, and a drain groove formed in the cowl top panel is continuous with the bead portion. A vehicle body structure according to any one of the preceding claims.
【請求項6】 閉断面部の外側面の下端部にエンボス部
を凸設して、エアボックスから閉断面部内に侵入してき
た水を排出するための排水口を形成した請求項1〜5の
いずれか1項に記載の自動車の車体構造。
6. A drain port for discharging water that has entered the closed cross section from the air box by forming an embossed portion at the lower end of the outer surface of the closed cross section. A vehicle body structure according to any one of the preceding claims.
【請求項7】 ビード部とエンボス部の前後位置が一致
している請求項6記載の自動車の車体構造。
7. The vehicle body structure of an automobile according to claim 6, wherein the front and rear positions of the bead portion and the embossed portion coincide with each other.
【請求項8】 閉断面部における最後端部の外側面が一
般部の外側面に対して車幅方向でオフセットしており、
面取部の内側の稜線部が内側に位置する方の外側面の稜
線部と平面視で直線的に連続し、且つ面取部の外側の稜
線部が外側に位置する方の外側面の稜線部と平面視で直
線的に連続している請求項1〜7のいずれか1項に記載
の自動車の車体構造。
8. An outer surface of a rearmost end in the closed cross section is offset in a vehicle width direction with respect to an outer surface of the general portion,
The ridge line on the outer side where the inner ridge line portion of the chamfered portion is linearly continuous in plan view with the ridge line portion on the outer side where the inner side is located, and the outer ridge line portion of the chamfered portion is located outside. The vehicle body structure of an automobile according to any one of claims 1 to 7, wherein the vehicle body structure is linearly continuous with the portion in plan view.
JP24238396A 1996-09-12 1996-09-12 Auto body structure Expired - Fee Related JP3867324B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24238396A JP3867324B2 (en) 1996-09-12 1996-09-12 Auto body structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24238396A JP3867324B2 (en) 1996-09-12 1996-09-12 Auto body structure

Publications (2)

Publication Number Publication Date
JPH1086846A true JPH1086846A (en) 1998-04-07
JP3867324B2 JP3867324B2 (en) 2007-01-10

Family

ID=17088355

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24238396A Expired - Fee Related JP3867324B2 (en) 1996-09-12 1996-09-12 Auto body structure

Country Status (1)

Country Link
JP (1) JP3867324B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002331961A (en) * 2001-05-11 2002-11-19 Toyota Auto Body Co Ltd Mounting structure for cowl louver
JP2014196066A (en) * 2013-03-29 2014-10-16 富士重工業株式会社 Front part vehicle body structure of vehicle
JP2019177751A (en) * 2018-03-30 2019-10-17 スズキ株式会社 Hinge arm attachment structure for vehicle front hoods
JP2022030062A (en) * 2020-08-06 2022-02-18 マツダ株式会社 Front body structure of vehicle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002331961A (en) * 2001-05-11 2002-11-19 Toyota Auto Body Co Ltd Mounting structure for cowl louver
JP2014196066A (en) * 2013-03-29 2014-10-16 富士重工業株式会社 Front part vehicle body structure of vehicle
JP2019177751A (en) * 2018-03-30 2019-10-17 スズキ株式会社 Hinge arm attachment structure for vehicle front hoods
JP2022030062A (en) * 2020-08-06 2022-02-18 マツダ株式会社 Front body structure of vehicle

Also Published As

Publication number Publication date
JP3867324B2 (en) 2007-01-10

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