JPH02114072A - Lower car body structure of automobile - Google Patents
Lower car body structure of automobileInfo
- Publication number
- JPH02114072A JPH02114072A JP26498388A JP26498388A JPH02114072A JP H02114072 A JPH02114072 A JP H02114072A JP 26498388 A JP26498388 A JP 26498388A JP 26498388 A JP26498388 A JP 26498388A JP H02114072 A JPH02114072 A JP H02114072A
- Authority
- JP
- Japan
- Prior art keywords
- panel
- floor panel
- inner panel
- automobile
- rocker
- 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
- 238000003466 welding Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Body Structure For Vehicles (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、車体の前後方向に延びるロッカパネル間にフ
ロアパネルの左、右側縁部を接続して自動車の床部を構
成するようにした車体の下部構造に関し、特にロッカパ
ネルとフロアパネルとの接合部分の剛性を向上できるよ
うにした構造に関する。[Detailed Description of the Invention] [Field of Industrial Application] The present invention comprises a floor panel of an automobile by connecting the left and right edges of a floor panel between rocker panels extending in the longitudinal direction of the vehicle body. The present invention relates to a lower structure of a vehicle body, and particularly to a structure that can improve the rigidity of a joint between a rocker panel and a floor panel.
（従来の技術〕
一般に、自動車の乗員室、薄物室の床部は、車体前部に
配設されたダラシエバネルの両外側下端部に車体前後方
向に延びるロッカパネルを接続し、このロッカパネル間
にフロアパネルの左、右側縁部を接続して構成されてい
る。このような自動車の床部を構成する車体の下部構造
として、従来、第４図に示すものがある。これはアウタ
パネル２１とインナパネル２２とからなる閉断面ボック
ス状のロッカパネル２０を、車体の前後方間両外側に配
設し、この左、右のインチパネル２２の内側面にフロア
パネル２３の左、右側縁部２３ａをスポット溶接して構
成されている。なお、２４は上記ロッカパネル２０の上
方に開閉自在に配設されたドアである。(Prior art) In general, the floor of the passenger compartment and thin object compartment of an automobile is constructed by connecting rocker panels extending in the longitudinal direction of the vehicle body to the lower ends of both outer sides of a Dalassie panel disposed at the front of the vehicle body, and connecting the rocker panels between the rocker panels. It is constructed by connecting the left and right edges of the floor panel.A conventional lower structure of the vehicle body that constitutes the floor of an automobile is shown in FIG. A rocker panel 20 having a box shape with a closed cross section consisting of a panel 22 is arranged on both outer sides between the front and rear of the vehicle body, and the left and right side edges 23a of the floor panel 23 are attached to the inner surfaces of the left and right inch panels 22. It is constructed by spot welding. Reference numeral 24 is a door disposed above the rocker panel 20 so as to be openable and closable.
ところで、自動車の車体においては、走行中における捻
じり１曲げ等の外力を受は易いことから、上記車体下部
部分は高い剛性が要求される。しかしながら、上記従来
の車体下部構造は、フロアパネルの両側縁部を、インナ
パネルの内側面中間付近の横方向剛性がそれほど高くな
い部分に単に突き当てて接続する構造であるから、この
接続部分の剛性はそれほど期待できず、このロッカパネ
ルとフロアパネルとの接続部分の剛性同上が要請される
。ここで、上記接続部分の剛性を向上させるには、例え
ばフロアパネルの上面、下面に車幅方向に延びる補強部
材を配設することが考えられるが、この方法は、重量や
部品点数の増大を招くことから限度がある。By the way, since the body of a car is easily subjected to external forces such as twisting and bending while the car is running, the lower part of the car body is required to have high rigidity. However, in the above-mentioned conventional vehicle body lower structure, the both side edges of the floor panel are connected by simply abutting against a portion of the inner panel near the middle of the inner surface where the lateral rigidity is not very high. Rigidity cannot be expected to be very high, and the connection portion between the rocker panel and the floor panel is required to have the same rigidity. Here, in order to improve the rigidity of the above-mentioned connection part, for example, it is possible to arrange reinforcing members extending in the vehicle width direction on the upper and lower surfaces of the floor panel, but this method does not increase the weight or the number of parts. There is a limit because it is an invitation.
本発明は上記従来の状況に鑑みてなされたもので、重量
や部品点数を増やすことなくロッカパネルとフロアパネ
ルとの接続部の剛性を向上できる自動車の車体下部構造
を提供することを目的としている。The present invention has been made in view of the above-mentioned conventional situation, and it is an object of the present invention to provide an automobile body lower structure that can improve the rigidity of the connection between the rocker panel and the floor panel without increasing the weight or the number of parts. .
本発明は、ロッカパネルにフロアパネルの左。 This invention applies to the left side of the floor panel to the rocker panel.
右側縁部を接合してなる自動車の車体下部構造において
、上記フロアパネルの左、右側縁部を、ロッカパネルの
インナパネルの内側面に沿って上記ロッカパネルの上側
フランジ部まで延長し、この延長部をインナパネルに接
合したことを特徴としている。In an automobile body lower structure in which the right side edges are joined, the left and right side edges of the floor panel are extended along the inner surface of the inner panel of the rocker panel to the upper flange of the rocker panel, and this extension The main feature is that the outer panel is joined to the inner panel.
ここで、本発明構造のロッカパネルとフロアパネルとを
接合するには、まずフロアパネルの延長部の下部をイン
ナパネルにスポット溶接してサブアツシーし、このイン
ナパネルにアウタパネルを当接させ、下側フランジ部同
士をスポット溶接するとともに、両パネルの上側フラン
ジ部とフロアパネルの延長部の上端とを３枚重ねでスポ
ット溶接することとなる。Here, in order to join the rocker panel and the floor panel of the structure of the present invention, first, the lower part of the extension part of the floor panel is spot welded to the inner panel for sub-assembly, the outer panel is brought into contact with this inner panel, and the lower part The flange parts are spot welded together, and the upper flange parts of both panels and the upper end of the extension part of the floor panel are spot welded together in three layers.
本発明に係る自動車の車体下部構造によれば、フロアパ
ネルの両側縁部をインナパネルの内側面に沿って上側フ
ランジ部まで延長したので、該延長部が２重になり、し
かも、該延長部を２箇所で溶接でき、別個の補強部材を
採用することな（ロッカパネルとフロアパネルとの接合
部分の剛性を向上できる。また本発明では、フロアパネ
ルの延長部と上側フランジ部とをスポット溶接する訳で
あるが、この場合、インナパネル及びアウタパネルの上
側フランジ部に延長部を重ねて、この３枚を同時にスポ
ット溶接できるから、スポット溶接数は従来と同数でよ
く、その結果、部品点数、溶接工数を増大させることな
く剛性を向上できる。According to the vehicle body lower structure of the present invention, both side edges of the floor panel are extended along the inner surface of the inner panel to the upper flange portion, so that the extended portion is doubled; can be welded at two locations, without having to employ a separate reinforcing member (the rigidity of the joint between the rocker panel and the floor panel can be improved).Furthermore, in the present invention, the extension part of the floor panel and the upper flange part can be spot welded. However, in this case, the extension part is overlapped with the upper flange part of the inner panel and outer panel, and these three panels can be spot welded at the same time, so the number of spot welds is the same as in the conventional method, and as a result, the number of parts is reduced. Rigidity can be improved without increasing welding man-hours.
また補強部材を追加する場合に比べれば、部品点数を減
少させることができる。Furthermore, the number of parts can be reduced compared to the case where reinforcing members are added.
以下、本発明の実施例を図について説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
第１図ないし第３図は本発明の一実施例による自動車の
車体下部構造を説明するための図である。1 to 3 are diagrams for explaining a lower body structure of an automobile according to an embodiment of the present invention.
図において、ｌは本実施例の車体下部構造が適用された
自動車であり、これはルーフパネル２とこれの左、右外
側に配設されたルーフサイトレール３との縁部同士を接
続し、このルーフサイトレール３の下面に、フロントピ
ラー４及びセンターピラー５の上端を接続するとともに
、この両ピラー４．５の下端に車体前後方向に延びるロ
ッカパネル６を接続してドア開ロアを形成し、該開ロア
に開閉自在のドア８を配設して構成されている。In the figure, l is an automobile to which the vehicle body lower structure of this embodiment is applied, and this connects the edges of the roof panel 2 and the roof sight rails 3 disposed on the left and right outer sides of the roof panel 2, The upper ends of a front pillar 4 and a center pillar 5 are connected to the lower surface of this roof sight rail 3, and a rocker panel 6 extending in the longitudinal direction of the vehicle body is connected to the lower ends of both pillars 4.5 to form a door opening lower. , a door 8 that can be opened and closed is disposed on the lower opening.
上記ロッカパネル６は、アウタパネル９とインナパネル
１０とからなる閉断面状のもので、該アウタパネル９の
上、下縁には上側、下側フランジ部９ａ、９ｂが、上記
インナパネル１０の上、下縁には同じく上側、下側フラ
ンジ部１０ａ、１０ｂが一体形゛成されており、この各
上側フランジ部９ａ、１０ａ及び下側フランジ部９ｂ、
ｌＯｂ同士が接合されている。さらに、上記インナパネ
ル１０の上側部分には外側に湾曲した凹部１２ａが形成
されており、該凹部１２ａの下縁部は平坦な接合部１２
ｂとなっている。The rocker panel 6 has a closed cross section consisting of an outer panel 9 and an inner panel 10, and upper and lower flange portions 9a and 9b are provided on the upper and lower edges of the outer panel 9, respectively. Similarly, upper and lower flange parts 10a and 10b are integrally formed on the lower edge, and these upper flange parts 9a and 10a and lower flange part 9b,
lObs are joined together. Further, an outwardly curved recess 12a is formed in the upper part of the inner panel 10, and the lower edge of the recess 12a is a flat joint 12.
b.
また、上記左、右のロッカパネル６．６間にはフロント
フロアパネル１）が配設されている。このフロアパネル
１）の左、右側縁部には上記インナパネル１０の上半部
に沿って上側フランジ部１０ａまで延びる延長部１）ａ
が形成されており、この延長部１）ａは上記インナパネ
ル１０の接合部１２ｂに当接する平坦な接合部１４ａと
、該接合部１４ａに続いて内側に湾曲し、上記凹部１２
ａとで通路空間部Ａを形成する凹部１４ｂと、該凹部１
４ｂに続いて延び、上記ロッカパネル６の上側フランジ
部１０ｍに当接するフランジ部１４Ｃとから構成されて
いる。そして、上記インナパネル１０の接合部１２ｂと
フロアパネルの接合部１４ａ１及びアウタパネル９．イ
ンナパネルｌＯの上側フランジ部９ａ、１０ａとフロア
パネル１０のフランジ部１４ｃとはそれぞれスポット溶
接により接合されており、これにより本実施例の車体下
部構造が構成されている。Further, a front floor panel 1) is disposed between the left and right rocker panels 6.6. The left and right side edges of this floor panel 1) have extensions 1)a extending along the upper half of the inner panel 10 to the upper flange 10a.
The extension part 1)a has a flat joint part 14a which abuts the joint part 12b of the inner panel 10, and a flat joint part 14a that curves inwardly following the joint part 14a and forms a concave part 12a.
a and a recess 14b forming a passage space A, and the recess 1
4b, and a flange portion 14C that abuts on the upper flange portion 10m of the rocker panel 6. Then, the joint portion 12b of the inner panel 10, the joint portion 14a1 of the floor panel, and the outer panel 9. The upper flange portions 9a, 10a of the inner panel 10 and the flange portion 14c of the floor panel 10 are each joined by spot welding, thereby forming the vehicle body lower structure of this embodiment.
次に本実施例の作用効果について説明する。Next, the effects of this embodiment will be explained.
本実施例によれば、フロントフロアパネル１）の側縁部
に、接合部１４ａ及びフランジ部１４ｃからなる延長部
１）ａを一体形成し、上記接合部１４ａをインナパネル
１０の接合部１２ｂに溶接するとともに、フランジ部Ｌ
４ｃをロッカパネル６の上側フランジ部９ａ、ｌｏａに
重ねて溶接したので、従来のインナパネルの内側面にフ
ロアパネルを単に突き当てて接合した構造に比べ剛性を
向上でき、振動、騒音等を軽減できる。According to this embodiment, the extension part 1)a consisting of the joint part 14a and the flange part 14c is integrally formed on the side edge of the front floor panel 1), and the joint part 14a is connected to the joint part 12b of the inner panel 10. At the same time as welding, the flange part L
4c is overlapped and welded to the upper flange portion 9a and loa of the rocker panel 6, so the rigidity is improved compared to the conventional structure in which the floor panel is simply butted against the inner surface of the inner panel and joined, and vibrations, noise, etc. are reduced. can.
また、本実施例構造では、インナパネルｌＯの凹部１２
ａとフロアパネル１）の凹部１４ｂとで閉断面状の通路
空間Ａを形成したので、この部分の剛性をさらに向上で
きるとともに、上記空間Ａ内にハーネス１５を配線する
ことができ、従来のフロアパネル上、つまり室内に配線
していた場合に比べ体裁がよい。In addition, in the structure of this embodiment, the recess 12 of the inner panel IO
A and the concave part 14b of the floor panel 1) form a passage space A with a closed cross section, so that the rigidity of this part can be further improved, and the harness 15 can be wired in the space A, making it possible to It looks better than if you wired it on the panel, that is, inside the room.
また、本実施例構造の組立てにおいては、上記フロアパ
ネル１）のフランジ部１４ｃをロッカパネル６の上側フ
ランジ部９ａ、ｌｏｇに重ね合わせて、この３枚を同時
にスポット溶接して接合すればよいから、このスポット
溶接の打点数は従来と同数でよく、しかもフロアパネル
１）の側縁部を少し延長するだけで実現でき、コストを
上昇させることはほとんどない。Furthermore, in assembling the structure of this embodiment, the flange portion 14c of the floor panel 1) may be overlapped with the upper flange portion 9a of the rocker panel 6, and these three panels may be joined by spot welding at the same time. This spot welding requires the same number of welding points as the conventional method, and can be achieved by simply extending the side edges of the floor panel 1) a little, so there is almost no increase in cost.
さらに、従来構造はロッカパネルとフロアパネルとの接
続部分（第４図Ｂ部分）に、雨水等の侵入を防止するボ
ディシーラを塗布していたが、本実施例構造ではフロア
パネル１）の側縁部が上側フランジ部まで延びているか
ら雨水等の侵入を回避でき、ボディシーラを不要にでき
る。Furthermore, in the conventional structure, a body sealer was applied to the connecting part between the rocker panel and the floor panel (part B in Figure 4) to prevent the intrusion of rainwater, but in this example structure, the side of the floor panel 1) Since the edge extends to the upper flange, it is possible to avoid the intrusion of rainwater, etc., and eliminate the need for a body sealer.
なお、上記実施例では、インナパネル１０の凹部１２ａ
とフロアパネル１）の凹部１４ｂとで閉断面状の通路空
間Ａを形成した場合を例にとって説明したが、本発明で
は必ずしもこの空間Ａを形成する必要はなく、両者を当
接させてもよい。In addition, in the above embodiment, the recess 12a of the inner panel 10
The explanation has been given by taking as an example a case where a passage space A having a closed cross section is formed by the concave portion 14b of the floor panel 1), but in the present invention, it is not always necessary to form this space A, and the two may be brought into contact with each other. .
以上のように本発明に係る自動車の下部構造によれば、
フロアパネルの左、右側縁部をインナパネルの内側面に
沿ってロンカバネルの上側フランジ部まで延長して接合
したので、部品点数、溶接数を増やすことなく、剛性を
向上できる効果がある。As described above, according to the automobile lower structure according to the present invention,
Since the left and right edges of the floor panel are extended and joined along the inner surface of the inner panel to the upper flange of the Roncabanel, rigidity can be improved without increasing the number of parts or welds.
第１図ないし第３図は本発明の一実施例による自動車の
車体下部構造を説明するための図であり、第１図は第３
図のＩ−■線断面図、第２図はその斜視図、第３図は本
実施例構造が採用された自動車を示す側面図、第４図は
従来の車体下部構造を説明するための断面図である。
図において、１は自動車、６はロッカパネル、９はアウ
タパネル、９ａは上側フランジ部、１０はインナパネル
、１０ａは上側フランジ部、１）はフロアパネル、Ｘ１
ａは延長部である。1 to 3 are diagrams for explaining a lower body structure of an automobile according to an embodiment of the present invention, and FIG.
2 is a perspective view thereof, FIG. 3 is a side view showing an automobile in which the structure of this embodiment is adopted, and FIG. 4 is a sectional view showing a conventional lower body structure. It is a diagram. In the figure, 1 is a car, 6 is a rocker panel, 9 is an outer panel, 9a is an upper flange part, 10 is an inner panel, 10a is an upper flange part, 1) is a floor panel, and X1
a is an extension.
Claims (1)
ンジ部で接合してなる左、右ロッカパネル間にフロアパ
ネルの左、右側縁部を接合してなる自動車の車体下部構
造において、上記フロアパネルの左、右側縁部を上記イ
ンナパネルの内側面に沿って上記上側フランジ部まで延
長し、この延長部をインナパネルに接合したことを特徴
とする自動車の車体下部構造。(1) In the lower structure of an automobile body in which the left and right side edges of the floor panel are joined between the left and right rocker panels formed by joining the outer panel and the inner panel at the upper and lower flange parts, the above-mentioned floor panel A lower body structure for an automobile, characterized in that left and right side edges of the inner panel are extended along the inner surface of the inner panel to the upper flange, and the extension parts are joined to the inner panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63264983A JP2566301B2 (en) | 1988-10-20 | 1988-10-20 | Undercar body structure of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63264983A JP2566301B2 (en) | 1988-10-20 | 1988-10-20 | Undercar body structure of automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02114072A true JPH02114072A (en) | 1990-04-26 |
| JP2566301B2 JP2566301B2 (en) | 1996-12-25 |
Family
ID=17410932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63264983A Expired - Lifetime JP2566301B2 (en) | 1988-10-20 | 1988-10-20 | Undercar body structure of automobile |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2566301B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5255953A (en) * | 1991-08-12 | 1993-10-26 | Alusuisse-Lonza Services Ltd. | Impact girder for vehicle doors |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6166079U (en) * | 1984-10-04 | 1986-05-07 |
-
1988
- 1988-10-20 JP JP63264983A patent/JP2566301B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6166079U (en) * | 1984-10-04 | 1986-05-07 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5255953A (en) * | 1991-08-12 | 1993-10-26 | Alusuisse-Lonza Services Ltd. | Impact girder for vehicle doors |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2566301B2 (en) | 1996-12-25 |
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