JPH0585423A - Lower part body structure of automobile - Google Patents
Lower part body structure of automobileInfo
- Publication number
- JPH0585423A JPH0585423A JP27709991A JP27709991A JPH0585423A JP H0585423 A JPH0585423 A JP H0585423A JP 27709991 A JP27709991 A JP 27709991A JP 27709991 A JP27709991 A JP 27709991A JP H0585423 A JPH0585423 A JP H0585423A
- Authority
- JP
- Japan
- Prior art keywords
- floor panel
- floor
- joined
- panel
- upper floor
- 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
Links
Landscapes
- Body Structure For Vehicles (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、自動車の下部車体構造
に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lower body structure of an automobile.
【０００２】[0002]
【従来の技術】従来より、自動車の車体フロアは、アッ
パフロアパネルとリヤフロアパネルとを互いに接合する
ことにより構成されている。そして、これらアッパフロ
アパネルおよびリヤフロアパネルの上面には、車体前後
方向へ延びるビード部が補強のためにそれぞれ設けられ
ている。2. Description of the Related Art Conventionally, a vehicle body floor of an automobile is constructed by joining an upper floor panel and a rear floor panel to each other. Beads extending in the front-rear direction of the vehicle body are provided on the upper surfaces of the upper floor panel and the rear floor panel for reinforcement.
【０００３】[0003]
【発明が解決しようとする課題】ところが、上述した従
来の下部車体構造にあっては、リヤフロアパネルのビー
ド部に合致させたフロアメンバが設けられておらず、当
該ビード部が閉断面構造になっていないので、車体フロ
アおよび結合部の剛性向上が図れず、自動車の振動や騒
音などにおいて不利であった。また、アッパフロアパネ
ルの剛性が不充分であることから、組付ける際の寸法精
度を高めることができず、組付性に課題を有していた。However, in the above-mentioned conventional lower body structure, the floor member matched with the bead portion of the rear floor panel is not provided, and the bead portion has a closed cross-section structure. Since it is not possible to improve the rigidity of the vehicle body floor and the joint, it is disadvantageous in vibration and noise of the automobile. Moreover, since the rigidity of the upper floor panel is insufficient, the dimensional accuracy at the time of assembling cannot be improved, and there is a problem in assembling.
【０００４】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、車体フロアおよび結合部の
剛性向上を図り、組付けの際の寸法精度を高めることが
可能な自動車の下部車体構造を提供することにある。The present invention has been made in view of the above circumstances, and an object of the present invention is to improve the rigidity of a vehicle body floor and a connecting portion, and to improve the dimensional accuracy at the time of assembly. To provide a lower body structure.
【０００５】[0005]
【課題を解決するための手段】上記従来技術の有する課
題を解決するために、本発明においては、車体フロアを
構成するアッパフロアパネルおよびリヤフロアパネルの
上面に車体前後方向へ延びるビード部を設けると共に、
前記アッパフロアパネルの下面に車体前後方向に延設さ
れるフロアメンバを接合し、該フロアメンバの後端に前
記アッパフロアパネルおよびリヤフロアパネルのビード
部と対応する形状の突起部を設け、該フロアメンバの突
起部を間に置いて前記アッパフロアパネルおよびリヤフ
ロアパネルのビード部を重ね合せて互いに接合してい
る。In order to solve the problems of the above-mentioned prior art, in the present invention, a bead portion extending in the vehicle front-rear direction is provided on the upper surfaces of the upper floor panel and the rear floor panel which form the vehicle body floor. ,
A floor member extending in the vehicle front-rear direction is joined to the lower surface of the upper floor panel, and a protrusion having a shape corresponding to the beads of the upper floor panel and the rear floor panel is provided at the rear end of the floor member. The bead portions of the upper floor panel and the rear floor panel are overlapped and joined to each other with the protrusion of the member interposed therebetween.
【０００６】[0006]
【作用】本発明に係る自動車の下部車体構造では、アッ
パフロアパネルの下面に延設されるフロアメンバの突起
部をアッパフロアパネルおよびリヤフロアパネルのビー
ド部に重ね合せて互いに接合しているため、リヤフロア
パネルのビード部がそのままの断面形状でアッパフロア
パネルに継ぎ合せられて結合されることになる。In the lower vehicle body structure for an automobile according to the present invention, the protrusions of the floor member extending on the lower surface of the upper floor panel are superposed on the bead portions of the upper floor panel and the rear floor panel and joined to each other. The bead portion of the rear floor panel is joined and joined to the upper floor panel in the same sectional shape.
【０００７】[0007]
【実施例】以下、本発明を図示の実施例に基づいて詳細
に説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below based on the illustrated embodiments.
【０００８】図１〜図９は本発明に係る自動車の下部車
体構造の一実施例を示している。図において、１はキャ
ブオーバタイプの自動車、２は自動車１の室内に設けら
れる車体フロアであり、この車体フロア２は車体の両側
下部に設けられるサイドシル３の間に配設されている。1 to 9 show one embodiment of the lower body structure of an automobile according to the present invention. In the figure, 1 is a cab-over type automobile, 2 is a vehicle body floor provided in the interior of the automobile 1, and the vehicle body floor 2 is provided between side sills 3 provided at the lower portions on both sides of the vehicle body.
【０００９】上記車体フロア２は、アッパフロアパネル
４，リヤフロアパネル５およびフロアメンバ６を互いに
スポット溶接等にて接合することにより構成され、後部
側には階段状に屈曲形成したキックアップ部７が設けら
れており、このキックアップ部７によって車体フロア２
の後方側が一段高くなっている。The vehicle body floor 2 is constructed by joining the upper floor panel 4, the rear floor panel 5 and the floor member 6 to each other by spot welding or the like, and has a kick-up portion 7 formed in a stepwise bend on the rear side. It is provided and the kick-up part 7 allows the vehicle body floor 2
The rear side of is higher.
【００１０】このため、アッパフロアパネル４は、上面
部４ａと側面部４ｂとによって逆配置のＬ字状に形成さ
れており、下端部にはこれを外方に屈曲させてなる接合
フランジ４ｃが設けられている。また、キックアップ部
７に位置するリヤフロアパネル５は、車体後方へ向って
斜め上方に屈曲され、下段面５ａ，傾斜面５ｂおよび上
段面５ｃにて構成されており、アッパフロアパネル４を
接合した状態でほぼ四角形の閉じた空間が形成されるよ
うになっている。さらに、アッパフロアパネル４の上面
部４ａおよびリヤフロアパネル５の上面５ａ，５ｂ，５
ｃには、車体前後方向へ延びる複数のビード部８，９が
それぞれ対応する位置に設けられている。これらビード
部８，９は、アッパフロアパネル４およびリヤフロアパ
ネル５自体を補強するためにエンボス成形されるもの
で、開口縁が下向きに配置されるほぼ同一の断面略コ字
状に形成され、アッパフロアパネル４とリヤフロアパネ
ル５とを接合した状態で一直線上となるように車巾方向
に間隔を置いて配置されている。For this reason, the upper floor panel 4 is formed in an L-shape in which the upper surface portion 4a and the side surface portion 4b are arranged in reverse, and the lower end portion thereof is provided with a joining flange 4c formed by bending the outer flange portion 4c outwardly. It is provided. The rear floor panel 5 located in the kick-up portion 7 is bent obliquely upward toward the rear of the vehicle body and is composed of a lower step surface 5a, an inclined surface 5b and an upper step surface 5c, and the upper floor panel 4 is joined to the rear floor panel 5. In this state, a substantially rectangular closed space is formed. Further, the upper surface portion 4a of the upper floor panel 4 and the upper surfaces 5a, 5b, 5 of the rear floor panel 5 are
A plurality of bead portions 8 and 9 extending in the front-rear direction of the vehicle body are provided at positions corresponding to c. These bead portions 8 and 9 are formed by embossing to reinforce the upper floor panel 4 and the rear floor panel 5 themselves, and are formed into substantially the same U-shaped cross section with their opening edges facing downward. The floor panel 4 and the rear floor panel 5 are arranged at intervals in the vehicle width direction so as to be aligned on a straight line in a state of being joined to each other.
【００１１】また、上記アッパフロアパネル４の下面に
は、車体前後方向に延設されるフロアメンバ６がスポッ
ト溶接等にて接合されている。このため、フロアメンバ
６は、アッパフロアパネル４と同様に逆配置されるＬ字
状に形成されており、下端部にはこれを外方に屈曲させ
てなる接合フランジ６ａが設けられている。そして、フ
ロアメンバ６の中間部６ｂは、開口縁が上向きに配置さ
れる断面略コ字状に形成され、その上面はアッパフロア
パネル４との接合面になっている。A floor member 6 extending in the vehicle front-rear direction is joined to the lower surface of the upper floor panel 4 by spot welding or the like. For this reason, the floor member 6 is formed in an L-shape that is reversely arranged similarly to the upper floor panel 4, and a joining flange 6a formed by bending the floor member 6 outward is provided at the lower end portion. The intermediate portion 6b of the floor member 6 is formed in a substantially U-shaped cross section with the opening edge facing upward, and its upper surface is a joint surface with the upper floor panel 4.
【００１２】また、フロアメンバ６の後端部６ｃには、
アッパフロアパネル４およびリヤフロアパネル５のビー
ド部８，９と対応する形状の突起部１０が設けられてい
る。すなわち、この突起部１０は、開口縁が下向きに配
置される断面略コ字状に形成され、車体前後方向に沿っ
て延びており、アッパフロアパネル４のビード部８とリ
ヤフロアパネル５のビード部９との間に配置可能な大き
さに一体成形されている。Further, at the rear end portion 6c of the floor member 6,
Protrusions 10 having shapes corresponding to the bead portions 8 and 9 of the upper floor panel 4 and the rear floor panel 5 are provided. That is, the projecting portion 10 is formed in a substantially U-shaped cross-section with the opening edge facing downward and extends along the vehicle body front-rear direction. The bead portion 8 of the upper floor panel 4 and the bead portion of the rear floor panel 5 are formed. It is integrally molded to a size that can be arranged between the first and second terminals.
【００１３】本実施例の下部車体構造においては、ビー
ド部８が設けられている箇所のアッパフロアパネル４の
下面にフロアメンバ６の上面を重ね合せ、当該フロアメ
ンバ６の接合フランジ６ａ，中間部６ｂおよび後端部６
ｃと、これらに対応するアッパフロアパネル４の接合フ
ランジ４ｃ，側面部４ｂおよび上面部４ａとを互いにス
ポット溶接等にて接合する。次いで、キックアップ部７
に位置するリヤフロアパネル５の上面にアッパフロアパ
ネル４およびフロアメンバ６を載せ、当該アッパフロア
パネル４のビード部８およびフロアメンバ６の突起部１
０をリヤフロアパネル５の上段面５ｃに位置するビード
部９に重ね合せてスポット溶接等により互いに接合する
と共に、アッパフロアパネル４およびフロアメンバ６の
接合フランジ４ｃ，６ａをリヤフロアパネル５の下段面
５にスポット溶接等にて接合する。しかして、アッパフ
ロアパネル４とフロアメンバ６とは、図３および図７に
示す如く閉断面構造にて接合され、しかもアッパフロア
パネル４の上面部４ａ，フロアメンバ６の後端部６ｃお
よびリヤフロアパネル５の上段面５ｃは、図８に示す如
く、フロアメンバ６の突起部１０を両フロアパネル４，
５のビード部８，９間に配置した状態で同一断面形状に
て接合されている。In the lower vehicle body structure of this embodiment, the upper surface of the floor member 6 is superposed on the lower surface of the upper floor panel 4 where the bead portion 8 is provided, and the joint flange 6a and the intermediate portion of the floor member 6 are overlapped. 6b and rear end 6
c and the joint flange 4c, the side surface portion 4b, and the upper surface portion 4a of the upper floor panel 4 corresponding to these are joined to each other by spot welding or the like. Next, the kick-up unit 7
The upper floor panel 4 and the floor member 6 are placed on the upper surface of the rear floor panel 5 located at, and the bead portion 8 of the upper floor panel 4 and the protruding portion 1 of the floor member 6 are placed.
0 is superposed on the bead portion 9 located on the upper step surface 5c of the rear floor panel 5 and joined to each other by spot welding or the like, and the joining flanges 4c and 6a of the upper floor panel 4 and the floor member 6 are joined to the lower step surface 5 of the rear floor panel 5. Join by spot welding or the like. Then, the upper floor panel 4 and the floor member 6 are joined by a closed cross-section structure as shown in FIGS. 3 and 7, and the upper surface portion 4a of the upper floor panel 4, the rear end portion 6c of the floor member 6 and the rear floor. As shown in FIG. 8, the upper step surface 5c of the panel 5 has the protrusions 10 of the floor member 6 on both floor panels 4, 4.
The bead portions 8 and 9 of No. 5 are joined in the same cross-sectional shape.
【００１４】本実施例の下部車体構造によれば、アッパ
フロアパネル４にフロアメンバ６を接合して閉断面構造
にすると共に、アッパフロアパネル４のビード部８およ
びフロアメンバ６の突起部１０をリヤフロアパネル５の
ビード部９に重ね合せて接合しているため、リヤフロア
パネル５のビード部９がアッパフロアパネル４のビード
部８に一直線上に連なって継ぎ合せられ、これらビード
部８，９の補強効果を高めることが可能となり、アッパ
フロアパネル４およびリヤフロアパネル５自体の剛性
や、これら両フロアパネル４，５の結合部の剛性を向上
させることができる。According to the lower vehicle body structure of this embodiment, the floor member 6 is joined to the upper floor panel 4 to form a closed sectional structure, and the bead portion 8 of the upper floor panel 4 and the protrusion portion 10 of the floor member 6 are provided. Since the bead portions 9 of the rear floor panel 5 are superposed and joined to each other, the bead portions 9 of the rear floor panel 5 are joined to the bead portions 8 of the upper floor panel 4 in a straight line, and the bead portions 8 and 9 are joined together. The reinforcing effect can be enhanced, and the rigidity of the upper floor panel 4 and the rear floor panel 5 itself and the rigidity of the joint portion between these floor panels 4 and 5 can be improved.
【００１５】以上、本発明の一実施例につき述べたが、
本発明は既述の実施例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および変更が可能
である。The embodiment of the present invention has been described above.
The present invention is not limited to the embodiments described above, and various modifications and changes can be made based on the technical idea of the present invention.
【００１６】例えば、既述の実施例においては、両フロ
アパネル４，５のビード部８，９およびフロアメンバ６
の突起部１０を断面略コ字状に形成したが、適用車種な
どに応じて断面半円弧状その他の形状に形成することも
可能である。For example, in the above-described embodiment, the bead portions 8 and 9 of both floor panels 4 and 5 and the floor member 6 are provided.
Although the protrusion 10 is formed to have a substantially U-shaped cross section, it may be formed to have a semi-circular cross section or other shapes depending on the type of vehicle to which it is applied.
【００１７】[0017]
【発明の効果】上述の如く、本発明に係る自動車の下部
車体構造は、アッパフロアパネルおよびリヤフロアパネ
ルの上面に車体前後方向へ延びるビード部を設けると共
に、前記アッパフロアパネルの下面に車体前後方向に延
設されるフロアメンバを接合し、このフロアメンバの後
端部に突起部を設け、該フロアメンバの突起部を間に置
いて前記両フロアパネルのビード部を重ね合せて互いに
接合しているので、アッパフロアパネルおよびリヤフロ
アパネル自体の剛性を高めることができ、車体フロアに
加わる荷重に対して有利となる上、両フロアパネルの結
合部の剛性向上が図れることによって自動車の振動や騒
音を抑えることができる。As described above, in the lower vehicle body structure of an automobile according to the present invention, the bead portions extending in the vehicle front-rear direction are provided on the upper surfaces of the upper floor panel and the rear floor panel, and the vehicle body front-rear direction is provided on the lower surface of the upper floor panel. A floor member extending to the floor member, a protrusion is provided at the rear end of the floor member, and the bead portions of both floor panels are overlapped and joined to each other with the protrusion of the floor member interposed therebetween. Since it is possible to increase the rigidity of the upper floor panel and the rear floor panel itself, which is advantageous for the load applied to the vehicle body floor, and the rigidity of the joint between both floor panels can be improved to reduce vibration and noise of the automobile. Can be suppressed.
【００１８】また、本発明の下部車体構造では、アッパ
フロアパネルの下面にフロアメンバを設けているため、
アッパフロアパネルの剛性が向上し、車体フロアを組付
ける際の寸法精度を高めることが可能となり、組付性の
向上を図ることができる。In the lower vehicle body structure of the present invention, since the floor member is provided on the lower surface of the upper floor panel,
The rigidity of the upper floor panel is improved, the dimensional accuracy when assembling the vehicle body floor can be increased, and the assemblability can be improved.
【図１】本発明の一実施例に係る下部車体構造を適用し
た自動車を示す斜視図である。FIG. 1 is a perspective view showing an automobile to which a lower body structure according to an embodiment of the present invention is applied.
【図２】図１におけるＡ部を拡大して示す斜視図であ
る。FIG. 2 is an enlarged perspective view showing a portion A in FIG.
【図３】図２におけるＢ−Ｂ線断面図である。3 is a sectional view taken along line BB in FIG.
【図４】図２におけるＣ−Ｃ線断面図である。FIG. 4 is a cross-sectional view taken along the line CC in FIG.
【図５】図２におけるＤ−Ｄ線断面図である。5 is a cross-sectional view taken along the line DD in FIG.
【図６】アッパフロアパネルおよびリヤフロアパネルに
接合されるフロアメンバを示す斜視図である。FIG. 6 is a perspective view showing a floor member joined to an upper floor panel and a rear floor panel.
【図７】図６におけるＥ−Ｅ線断面図である。7 is a sectional view taken along line EE in FIG.
【図８】図６におけるＦ−Ｆ線断面図である。8 is a sectional view taken along line FF in FIG.
【図９】アッパフロアパネルおよびフロアメンバをリヤ
フロアパネルに接合する状態を示す斜視図である。FIG. 9 is a perspective view showing a state in which an upper floor panel and a floor member are joined to a rear floor panel.
１ 自動車 ２ 車体フロア ４ アッパフロアパネル ５ リヤフロアパネル ６ フロアメンバ ８，９ ビード部 １０ 突起部 1 Car 2 Body Floor 4 Upper Floor Panel 5 Rear Floor Panel 6 Floor Member 8,9 Bead 10 Protrusion
Claims (1)
ルおよびリヤフロアパネルの上面に車体前後方向へ延び
るビード部を設けると共に、前記アッパフロアパネルの
下面に車体前後方向に延設されるフロアメンバを接合
し、該フロアメンバの後端に前記アッパフロアパネルお
よびリヤフロアパネルのビード部と対応する形状の突起
部を設け、該フロアメンバの突起部を間に置いて前記ア
ッパフロアパネルおよびリヤフロアパネルのビード部を
重ね合せて互いに接合したことを特徴とする自動車の下
部車体構造。1. A bead portion extending in the vehicle front-rear direction is provided on upper surfaces of an upper floor panel and a rear floor panel which form a vehicle body floor, and a floor member extending in the vehicle front-rear direction is joined to a lower surface of the upper floor panel. A protrusion having a shape corresponding to the beads of the upper floor panel and the rear floor panel is provided at the rear end of the floor member, and the protrusion of the floor member is placed between the beads of the upper floor panel and the rear floor panel. A lower body structure of an automobile characterized by being superposed and joined to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3277099A JP3018664B2 (en) | 1991-09-27 | 1991-09-27 | Lower body structure of car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3277099A JP3018664B2 (en) | 1991-09-27 | 1991-09-27 | Lower body structure of car |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0585423A true JPH0585423A (en) | 1993-04-06 |
| JP3018664B2 JP3018664B2 (en) | 2000-03-13 |
Family
ID=17578766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3277099A Expired - Lifetime JP3018664B2 (en) | 1991-09-27 | 1991-09-27 | Lower body structure of car |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3018664B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7717487B2 (en) * | 2007-11-28 | 2010-05-18 | Toyota Jidosha Kabushiki Kaisha | Seat holding portion structure |
| US9504962B2 (en) | 2012-08-10 | 2016-11-29 | Ube Industries, Ltd. | Gas-separating membrane module |
-
1991
- 1991-09-27 JP JP3277099A patent/JP3018664B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7717487B2 (en) * | 2007-11-28 | 2010-05-18 | Toyota Jidosha Kabushiki Kaisha | Seat holding portion structure |
| US9504962B2 (en) | 2012-08-10 | 2016-11-29 | Ube Industries, Ltd. | Gas-separating membrane module |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3018664B2 (en) | 2000-03-13 |
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