JP3511310B2 - Car floor - Google Patents
Car floorInfo
- Publication number
- JP3511310B2 JP3511310B2 JP10917894A JP10917894A JP3511310B2 JP 3511310 B2 JP3511310 B2 JP 3511310B2 JP 10917894 A JP10917894 A JP 10917894A JP 10917894 A JP10917894 A JP 10917894A JP 3511310 B2 JP3511310 B2 JP 3511310B2
- Authority
- JP
- Japan
- Prior art keywords
- bead
- floor panel
- cross member
- extending
- tunnel
- 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.)
- Expired - Fee Related
Links
Landscapes
- Body Structure For Vehicles (AREA)
Description
【発明の詳細な説明】
【０００１】
【産業上の利用分野】本発明は、自動車におけるフロア
の構造に関する。
【０００２】
【従来技術】従来、自動車のフロア構造として、特開昭
61−89178 号公報、実開昭59−133373号公報等に示され
ているように、フロアパネルの中央部に車両前後方向に
沿って、トランスミッションやプロペラシャフト等を通
すためのトンネル部を形成し、このフロアパネル上に前
記トンネル部を挟むようして左右１対の車巾方向に沿う
シートマウントメンバもしくは補強用のクロスメンバー
を接合した構造が知られている。
【０００３】このような自動車用フロアには、補強のた
めにビードすなわち凹状または凸状の条線部分が形成さ
れているが、通常、このビードは車体の前後方向に平行
に設けられている。
【０００４】
【解決しようとする課題】近年、車体の前後方向の強度
に加えて、横方向の強度が重視されるようになって来て
いるが、上記前後方向に延びるビードではフロアに作用
する横方向の荷重に対処することはできず、また前記ク
ロスメンバのみで横方向荷重に対して充分な補強効果を
得ることも難しい。
【０００５】
【課題を解決するための手段および作用】本発明はこの
ような事情に鑑みてなされたものであり、本発明におい
ては、フロアパネル上に車巾方向に延びる断面略逆U字
状のクロスメンバを接合して成る自動車のフロアにおい
て、前記フロアパネルの車巾方向中央に前後方向に延び
るトンネル部が形成され、前記クロスメンバは該トンネ
ル部の両側においてそれぞれ該トンネル部からフロアパ
ネル側縁に形成されたサイドシル部まで延びており、前
記フロアパネルの前記クロスメンバとともに閉断面を形
成する部分には該クロスメンバに沿って車巾方向に延び
る連続したビード部が形成され、該ビード部はその前後
の立上り部の一方の立上り部の傾斜が他方の立上り部の
傾斜より緩やかであるとともに、前記フロアパネルの前
後方向に延びるビードとの対応部において該ビードの底
壁部に達しかつ該ビードの両側壁を抑える延出部分を備
えていることを特徴とする。
【０００６】本発明によれば、クロスメンバとともに閉
断面を形成するフロアパネル部分に、該クロスメンバに
沿って車巾方向に延びる連続したビード部が形成されて
いるので、フロアパネルのクロスメンバを接合した部分
の横方向荷重に対する剛性が一段と増す。従ってフロア
パネルに大きな横方向荷重が作用しても、クロスメンバ
接合部分でこの荷重を受け持つことにより、該荷重に充
分対抗することができる。フロアパネルのクロスメンバ
によって覆われこのクロスメンバとともに閉断面を形成
する部分に、上方へ屈曲してクロスメンバ内に突出する
ビード部が形成されて、該ビード部はトンネル部からサ
イドシル部まで連続して延びているので、フロアパネル
に作用する横方向荷重が、フロアパネルに接合されたク
ロスメンバだけでなく、フロアパネル自体に一体に形成
されたビード部によっても受けられ、さらに、ビード部
の前後の立上り部の延出部分はフロアパネルの前後方向
に延びるビードとの対応位置において該ビードの底壁部
に達しかつ該ビードの両側壁を抑える構造とされるか
ら、該ビードの両側壁の横方向荷重による傾斜変形が防
止され一層大きな補強効果が得られ、フロアパネルは大
きな横方向荷重に対抗することができる。また、ビード
部の前方の立上り部は後方の立上り部より緩傾斜に形成
されているから、塗装ライン上での電着塗装時における
塗膜抜けを有効に防止することができる。
【０００７】
【実施例】図１は本発明の一実施例に係る自動車のフロ
ントフロアを斜め上前方から見た斜視図である。１はフ
ロアパネルで、このフロアパネル１には車巾方向中央部
に前後方向に延びるトンネル部２が形成されている。ト
ンネル部２内には周知のようにトランスミッションやプ
ロペラシャフトが通される。
【０００８】フロアパネル１の上記トンネル部２の両側
に延在する板状部分には、従来と同様に、前後方向に延
びる多数のビード３が形成されている。本実施例におい
てはこれらのビード３は、フロアパネル１の上面側にお
いて凹溝状、下面側において凸条状に形成されている
が、これと逆の形状に形成してもよい。
【０００９】フロアパネル１の両側縁部は上方へ立上げ
られてサイドシル部分４となっている。そしてトンネル
部２の両側において該トンネル部２と上記サイドシル部
分４との間にそれぞれクロスメンバ５が配設されてい
る。クロスメンバ５は、図３に示すように、下方のフロ
アパネル１側へ向って開いた断面略逆Ｕ字状の部材から
成り、その開口部に沿って外側へ張り出したフランジ部
５ａを介してフロアパネル１にスポット溶接等により固
着されている。
【００１０】このフロアパネル１は、前後方向の荷重に
対してはビード３により補強され、横方向（車巾方向）
の荷重に対してはクロスメンバ５により補強されている
が、クロスメンバ５による横方向荷重に対する補強効果
をさらに高めるために、フロアパネル１のクロスメンバ
５によって覆われこのクロスメンバ５とともに閉断面を
形成する部分に、上方へ屈曲してクロスメンバ５内に突
出するビード部６が形成されている（図２、図３）。こ
のビード部６は、図２に示すように前記ビード３に直角
に横方向に延び、かつトンネル部２からサイドシル部分
４まで連続して延びている。
【００１１】フロアパネル１のクロスメンバ５接合部分
をこのように構成することにより、フロアパネル１に作
用する横方向の荷重が、フロアパネル１に接合されたク
ロスメンバ５だけではなく、フロアパネル１自体に一体
に形成されたビード部６によっても受けられるので、フ
ロアパネル１は大きな横方向荷重に対抗することができ
る。さらに、ビード部６の前後の立上り部６ａ，６ｂ
は、図２に示すように、ビード３部分においてはその底
壁部３ａまで延び、この延出部分６ｃによってビード３
の両側の側壁部３ｂを抑えているので、両側壁部３ｂの
横方向荷重による傾斜変形が防止され、一層大きな補強
効果が得られる。
【００１２】なお、図３に示すように、ビード部６の前
方の立上り部６ａは後方の立上り部６ｂより緩傾斜に形
成されている。このようにすることにより、塗装ライン
上での電着塗装時における塗膜抜けを有効に防止するこ
とができる。
【００１３】
【発明の効果】本発明によれば、自動車のフロアパネル
の横方向荷重に対する剛性を増して、大きな横方向荷重
に耐えるようにすることができる。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor structure of an automobile. 2. Description of the Related Art Conventionally, as a floor structure of an automobile, Japanese Unexamined Patent Publication No.
As shown in JP-A-61-89178, JP-A-59-133373, etc., a tunnel portion for passing a transmission, a propeller shaft, and the like is formed in the center of the floor panel along the vehicle longitudinal direction. A structure is known in which a pair of left and right seat mount members or reinforcing cross members along the vehicle width direction are joined on the floor panel so as to sandwich the tunnel portion. [0003] A bead, that is, a concave or convex streak portion is formed on such an automobile floor for reinforcement. Usually, this bead is provided parallel to the front-rear direction of the vehicle body. [0004] In recent years, in addition to the strength of the vehicle body in the front-rear direction, emphasis has been placed on the strength in the lateral direction. However, the bead extending in the front-rear direction acts on the floor. It is not possible to cope with the load in the lateral direction, and it is also difficult to obtain a sufficient reinforcing effect against the load in the lateral direction only with the cross member. SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and in the present invention, a substantially inverted U-shaped section extending in a vehicle width direction on a floor panel is provided. A tunnel member extending in the front-rear direction is formed at the center of the floor panel in the width direction of the vehicle, and the cross member is located on both sides of the tunnel portion from the tunnel portion to the floor panel side. A continuous bead portion extending in the vehicle width direction along the cross member is formed at a portion of the floor panel that forms a closed cross section with the cross member, the bead portion extending to a side sill portion formed at the edge. Before and after
The slope of one rising part of the rising part is gentler than the slope of the other rising part, and the front part of the floor panel is
The bottom of the bead at the corresponding part with the bead extending rearward
An extended portion that reaches the wall and suppresses both side walls of the bead is provided.
It is characterized by having. According to the present invention, a continuous bead portion extending in the vehicle width direction along the cross member is formed in the floor panel portion forming a closed cross section together with the cross member. The stiffness of the joined portion against the lateral load is further increased. Therefore, even if a large lateral load acts on the floor panel, the load can be sufficiently countered by receiving the load at the cross member joining portion. A bead portion that is bent upward and projects into the cross member is formed at a portion that is covered by the cross member of the floor panel and forms a closed section together with the cross member, and the bead portion is continuous from the tunnel portion to the side sill portion. The lateral load acting on the floor panel is received not only by the cross member joined to the floor panel, but also by the bead portion integrally formed on the floor panel itself, and further, the bead portion
The extension of the rising part before and after is the front and rear direction of the floor panel
Bottom wall of the bead at a position corresponding to the bead extending
Is reached and both sides of the bead are restrained
Therefore, the lateral deformation of the side walls of the bead due to the lateral load is prevented.
Stopped, a greater reinforcement effect is obtained, and the floor panel can withstand large lateral loads. In addition, since the rising portion at the front of the bead portion is formed at a gentler inclination than the rising portion at the rear, it is possible to effectively prevent the paint film from falling off during the electrodeposition coating on the coating line. FIG. 1 is a perspective view of a front floor of an automobile according to an embodiment of the present invention, as viewed obliquely from the upper front. Reference numeral 1 denotes a floor panel. The floor panel 1 has a tunnel portion 2 extending in the front-rear direction at the center in the vehicle width direction. A transmission and a propeller shaft are passed through the tunnel 2 as is well known. A large number of beads 3 extending in the front-rear direction are formed in a plate-like portion extending on both sides of the tunnel portion 2 of the floor panel 1 as in the prior art. In the present embodiment, these beads 3 are formed in a concave groove shape on the upper surface side of the floor panel 1 and in a convex ridge shape on the lower surface side. However, they may be formed in a reverse shape. The both side edges of the floor panel 1 are raised upward to form side sill portions 4. Cross members 5 are disposed between the tunnel portion 2 and the side sill portions 4 on both sides of the tunnel portion 2. As shown in FIG. 3, the cross member 5 is formed of a member having a substantially inverted U-shaped cross section that opens toward the lower floor panel 1 side, and a flange portion 5a that protrudes outward along the opening. It is fixed to the floor panel 1 by spot welding or the like. The floor panel 1 is reinforced by a bead 3 against a load in the front-rear direction, and is provided in a lateral direction (a vehicle width direction).
The cross member 5 is reinforced by the cross member 5. However, in order to further enhance the reinforcing effect of the cross member 5 against the lateral load, the cross section is covered with the cross member 5 of the floor panel 1 and a closed cross section is formed together with the cross member 5. A bead portion 6 which is bent upward and protrudes into the cross member 5 is formed at the portion to be formed (FIGS. 2 and 3). As shown in FIG. 2, the bead portion 6 extends laterally at right angles to the bead 3 and continuously extends from the tunnel portion 2 to the side sill portion 4. With the cross member 5 joining portion of the floor panel 1 configured in this manner, the lateral load acting on the floor panel 1 is not limited to the cross member 5 joined to the floor panel 1 but also to the floor panel 1. Since it is also received by the bead part 6 formed integrally with itself, the floor panel 1 can withstand a large lateral load. Further, rising portions 6a, 6b before and after the bead portion 6
As shown in FIG. 2, the bead 3 extends to the bottom wall 3a at the bead 3, and the bead 3 is extended by the extended portion 6c.
Since the side wall portions 3b on both sides are suppressed, the side wall portions 3b are prevented from being inclinedly deformed by a lateral load, and a greater reinforcing effect can be obtained. As shown in FIG. 3, the rising portion 6a in front of the bead portion 6 is formed to have a gentler inclination than the rising portion 6b in the rear. By doing so, it is possible to effectively prevent the coating film from missing during electrodeposition coating on the coating line. According to the present invention, it is possible to increase the rigidity of a floor panel of an automobile with respect to a lateral load and to endure a large lateral load.
【図面の簡単な説明】
【図１】本発明の一実施例に係る自動車のフロントフロ
アの斜視図である。
【図２】上記フロントフロアにおけるフロアパネルのク
ロスメンバ接合部分の構造を示す斜視図である。
【図３】図１のIII −III 線に沿う断面図である。
【符号の説明】
１…フロアパネル、２…トンネル部、３…ビード、４…
サイドシル部分、５…クロスメンバ、６…ビード部。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a front floor of an automobile according to an embodiment of the present invention. FIG. 2 is a perspective view showing a structure of a cross member joining portion of a floor panel on the front floor. FIG. 3 is a sectional view taken along line III-III in FIG. [Description of Signs] 1 ... Floor panel, 2 ... Tunnel part, 3 ... Bead, 4 ...
Side sill part, 5 ... cross member, 6 ... bead part.
Claims (1)
略逆U字状のクロスメンバを接合して成る自動車のフロ
アにおいて、前記フロアパネルの車巾方向中央に前後方
向に延びるトンネル部が形成され、前記クロスメンバは
該トンネル部の両側においてそれぞれ該トンネル部から
フロアパネル側縁に形成されたサイドシル部まで延びて
おり、前記フロアパネルの前記クロスメンバとともに閉
断面を形成する部分には該クロスメンバに沿って車巾方
向に延びる連続したビード部が形成され、該ビード部は
その前後の立上り部の一方の立上り部の傾斜が他方の立
上り部の傾斜より緩やかであるとともに、前記フロアパ
ネルの前後方向に延びるビードとの対応部において該ビ
ードの底壁部に達しかつ該ビードの両側壁を抑える延出
部分を備えていることを特徴とする自動車のフロア。(57) [Claim 1] In an automobile floor formed by joining a cross member having a substantially inverted U-shaped cross section extending in the vehicle width direction to a floor panel, a center of the floor panel in the vehicle width direction is provided. A tunnel portion extending in the front-rear direction is formed at each side of the tunnel member, and the cross member extends from each side of the tunnel portion to a side sill portion formed at a side edge of the floor panel, and is closed together with the cross member of the floor panel. A continuous bead portion extending in the vehicle width direction along the cross member is formed in a portion forming the cross section, and the bead portion is
With the slope of one of the rising portion of the rising portion of the front and rear is gentle than the inclination of the other rising portion, the Furoapa
At the corresponding portion of the bead extending in the front-rear direction of the
Extension reaching the bottom wall of the bead and holding down both side walls of the bead
A car floor characterized by comprising a part .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10917894A JP3511310B2 (en) | 1994-04-26 | 1994-04-26 | Car floor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10917894A JP3511310B2 (en) | 1994-04-26 | 1994-04-26 | Car floor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07291150A JPH07291150A (en) | 1995-11-07 |
| JP3511310B2 true JP3511310B2 (en) | 2004-03-29 |
Family
ID=14503640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10917894A Expired - Fee Related JP3511310B2 (en) | 1994-04-26 | 1994-04-26 | Car floor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3511310B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7854472B2 (en) | 2007-10-22 | 2010-12-21 | Honda Motor Co., Ltd. | Vehicle body structure |
| US7828370B2 (en) | 2007-10-25 | 2010-11-09 | Honda Motor Co., Ltd. | Vehicle body structure |
| JP5670307B2 (en) * | 2011-12-15 | 2015-02-18 | 本田技研工業株式会社 | Car floor structure |
| JP2017039383A (en) * | 2015-08-19 | 2017-02-23 | スズキ株式会社 | Car body floor structure of four-wheel car |
-
1994
- 1994-04-26 JP JP10917894A patent/JP3511310B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07291150A (en) | 1995-11-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20031224 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20031224 |
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| FPAY | Renewal fee payment (event date is renewal date of database) |
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| LAPS | Cancellation because of no payment of annual fees |