JPS6359911B2 - - Google Patents
Info
- Publication number
- JPS6359911B2 JPS6359911B2 JP8723381A JP8723381A JPS6359911B2 JP S6359911 B2 JPS6359911 B2 JP S6359911B2 JP 8723381 A JP8723381 A JP 8723381A JP 8723381 A JP8723381 A JP 8723381A JP S6359911 B2 JPS6359911 B2 JP S6359911B2
- Authority
- JP
- Japan
- Prior art keywords
- tunnel
- fuel tank
- floor panel
- tank
- vehicle
- 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
Links
- 239000002828 fuel tank Substances 0.000 claims description 37
- 230000003014 reinforcing effect Effects 0.000 claims description 11
- 230000002787 reinforcement Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/20—Floors or bottom sub-units
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Description
この発明は自動車の車体フロア構造に係り、特
にフロアパネルの幅方向中央部に車両前後方向の
トンネルを形成し、該トンネル内に燃料タンクを
配置するようにした車体フロア構造の改良に関す
る。
The present invention relates to a vehicle body floor structure, and more particularly to an improvement in a vehicle body floor structure in which a tunnel is formed in the widthwise center of a floor panel in the longitudinal direction of the vehicle, and a fuel tank is disposed within the tunnel.
例えば特開昭51−64234号公報に記載されるよ
うに、RR（リアエンジン・リアドライブ）型自
動車あるいはFF（フロントエンジン・フロントド
ライブ）型自動車において、フロアパネルの幅方
向中央部に、上向きに凸で、下方が開口する車両
前後方向のトンネルを形成し、該トンネル内に燃
料タンクを配置することによつて、車両の全長を
短縮し、これによつて車両重量を軽減することが
考えられる。
For example, as described in Japanese Patent Application Laid-Open No. 51-64234, in RR (rear engine/rear drive) type automobiles or FF (front engine/front drive) type automobiles, there is a By forming a convex tunnel in the longitudinal direction of the vehicle that is open at the bottom and arranging the fuel tank within the tunnel, it is possible to shorten the overall length of the vehicle and thereby reduce the vehicle weight. .
本発明は前記のような構造の自動車において、
フロア剛性を向上させると共に、縁石への車両乗
上げ時などに障害物から燃料タンクを保護し、且
つ、該燃料タンクとトンネル内に強固に支持する
ようにした自動車の車体フロア構造を提供するこ
とを目的としている。
The present invention provides an automobile having the structure as described above.
To provide a vehicle body floor structure for an automobile that improves floor rigidity, protects a fuel tank from obstacles when the vehicle runs onto a curb, and firmly supports the fuel tank and inside a tunnel. It is an object.
この発明は、フロアパネルの幅方向中央部に、
上向き凸で、下方が開口する車両前後方向のトン
ネルが形成され、該トンネル内に燃料タンクが配
置されてなる自動車の車体フロア構造において、
前記トンネルの下向き開口の幅方向両側に隣接
し、且つ下端が前記燃料タンク下端より低位置に
突出する下向きに凸の閉断面補強部を、車両前後
方向に少なくとも前記燃料タンクの長さ範囲で配
置すると共に、その幅方向両端部を前記フロアパ
ネルに下方から重ね合せて接合し、前記トンネル
内に前記燃料タンクを吊下げ支持するタンクバン
ドの端部を、前記フロアパネルと閉断面補強部幅
方向トンネル側端部との重ね合わせ接合部に連結
支持することによつて前記目的を達成するもので
ある。
又、この発明は、前記タンクバンドの端部を支
持する重ね合わせ接合部を、前記フロアパネル一
般部から前記トンネルに至る屈曲傾斜面とするこ
とによつて前記目的を達成するものである。
In this invention, in the widthwise central part of the floor panel,
In an automobile body floor structure in which a tunnel is formed in the longitudinal direction of the vehicle and is convex upward and open at the bottom, and a fuel tank is disposed within the tunnel,
A downwardly convex closed cross-section reinforcing portion that is adjacent to both sides in the width direction of the downward opening of the tunnel and whose lower end protrudes lower than the lower end of the fuel tank is disposed at least in the length range of the fuel tank in the longitudinal direction of the vehicle. At the same time, both ends of the tank band in the width direction are overlapped and joined to the floor panel from below, and the ends of the tank band that suspends and supports the fuel tank in the tunnel are connected to the floor panel and the closed section reinforcement part in the width direction. The above object is achieved by connecting and supporting the overlapping joint with the tunnel side end. Further, the present invention achieves the above object by making the overlapping joint portion supporting the end portion of the tank band a bent slope extending from the general portion of the floor panel to the tunnel.
以下本発明の実施例を図面を参照して説明す
る。
第１図は本発明に係る自動車のフロア構造を実
施した自動車の要部を示す略示断面図、第２図は
同実施例の要部を拡大して示す一部断面斜視図で
ある。
この実施例は、RR型自動車Ｍのフロアパネル
１の幅方向中央部に、上向きに凸で、下方が開口
する車両前後方向のトンネル２が形成されてなる
自動車の車体フロア構造において、フロアパネル
の幅方向中央部に、上向きに凸で、下方が開口す
る車両前後方向のトンネルが形成され、該トンネ
ル内に燃料タンクが配置されてなる自動車の車体
フロア構造において、前記トンネル２の下向き開
口の幅方向両側に隣接し、且つ下端が前記燃料タ
ンク３下端より低位置に突出する下向きに凸の閉
断面補強部４を、車両前後方向に少なくとも前記
燃料タンク３の長さ範囲で配置すると共に、その
幅方向両端部を前記フロアパネル１に下方から重
ね合わせて接合し、前記トンネル２内に前記燃料
タンク３を吊下げ支持するタンクバンド１２の端
部を前記フロアパネル１と閉断面補強部４の幅方
向トンネル２側端部との重ね合わせ接合部１６に
連結支持したものである。
前記フロアパネル１は、前記トンネル２を構成
するパネル５を介して連結される左右一対のパネ
ルよりなつている。
又、前記トンネル構成パネル５の下端両側縁
は、断面が上向きコ字状となるように外側に折曲
げ形成され、前記フロアパネル１に下方から前記
折曲げ部分を連結され、これによつて前記閉断面
補強部４は、トンネル構成パネル５及びフロアパ
ネル１とにより形成されている。
又、前記タンクバンド１２の端部を支持する重
ね合わせ接合部１６は、前記フロアパネル１の一
般部から前記トンネル２に至る屈曲傾斜面とされ
ている。
前記タンクバンド１２は、第１図に示されるよ
うに、燃料タンク３をその長手方向の３個所（複
数個所）において、燃料タンク３上面及び側面と
前記トンネル２内に内周面との間に配置された緩
衝材１３を、押圧する方向に下方から支持してい
る。
前記タンクバンド１２の前記重ね合わせ接合部
１６に対する連結構造は、第３図に拡大して示さ
れるように、該重ね合わせ接合部１６及び前記タ
ンクバンド１２の端部を貫通するボルト１４及び
これに螺合するナツト１５により、両者を重ね合
わせて締付け固定するものである。
この実施例の場合、トンネル２の下端両側に隣
接して閉断面補強部４が形成され、且つ、この閉
断面補強部４の下端はトンネル２内の燃料タンク
３下端よりも下方に突出されているので、縁石へ
の車両乗上げ時等において障害物から燃料タンク
３を保護することができる。又、閉断面補強部４
は燃料タンク３の下部両側に配置されているの
で、特に燃料タンク３周囲のフロア剛性を向上で
きる。
又、前記燃料タンク３を支持するためのタンク
バンド１２の端部は、閉断面補強部４とフロアパ
ネル１との重ね合わせ接合部１６に締付け固定さ
れているので、該タンクバンド１２の端部を強固
にボデイ側に支持させることができ、従つて、燃
料タンク３を安定してトンネル２内に支持するこ
とができる。
更に、上記実施例において、重ね合わせ接合部
１６は、フロアパネル１の一般部からトンネル２
に至る屈曲傾斜面であつて、閉断面補強部４のト
ンネル２側端部位置に形成されているので、閉断
面補強部４の、燃料タンク３からの距離を短くし
て燃料タンク３の保護をより確実にすることがで
きると共に、タンクバンド１２を、閉断面補強部
４の間で、且つ、これよりも高く配置することに
より、障害物等からタンクバンド１２をも保護す
ることができる。
又、前記タンクバンド１２の端部は、燃料タン
ク３の荷車に充分に耐えるためには、トンネル２
の縦壁部分に支持させるのがよいが、この場合は
タンク容量が小さくなり、又、フロアパネル１の
一般部に支持させると燃料タンク３を吊上げる引
張力が小さくなつてしまう。これに対して、重ね
合わせ接合部１６を屈曲傾斜面としているので、
タンク容量を減小させることなく、充分な吊上げ
引張力を得ることができる。
更に又、上記実施例の場合、フロアパネル１と
トンネル構成パネル５が別体とされているので、
トンネルの高さが高くてフロアパネル１からトン
ネルを絞り加工することができない場合でも、ト
ンネル構成パネル５を深く絞ることによりトンネ
ル２を形成できるという利点がある。
なお、上記実施例は、フロアパネル１とトンネ
ル構成パネル５が別体とされたものであるが、本
発明はこれに限定されるものでなく、例えば第４
図に示されるように、トンネル２を、フロアパネ
ル１から絞り加工することによつて連続一体的に
形成するようにしてもよい。
この実施例の場合は、トンネル２がフロアパネ
ル１と一体であるので、製造し易いという利点が
ある。
又、上記実施例における閉断面補強部４の長さ
は、少なくとも燃料タンク３の長さの範囲であれ
ばよく、従つて、例えば、閉断面補強部４はトン
ネル２の全長に亘つて形成するようにしてもよ
い。
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic cross-sectional view showing a main part of an automobile in which a car floor structure according to the present invention is implemented, and FIG. 2 is a partially sectional perspective view showing an enlarged view of the main part of the same embodiment. This embodiment is a vehicle body floor structure in which a tunnel 2 in the longitudinal direction of the vehicle, which is convex upward and open at the bottom, is formed in the widthwise center of the floor panel 1 of an RR type automobile M. In an automobile body floor structure in which a tunnel in the longitudinal direction of the vehicle is formed at the center in the width direction and is convex upward and open at the bottom, and a fuel tank is disposed within the tunnel, the width of the downward opening of the tunnel 2 is A downwardly convex closed section reinforcing portion 4 adjacent to both sides of the fuel tank 3 and having a lower end protruding lower than the lower end of the fuel tank 3 is disposed at least in the length range of the fuel tank 3 in the longitudinal direction of the vehicle. Both ends in the width direction are overlapped and joined to the floor panel 1 from below, and the ends of the tank band 12 that suspends and supports the fuel tank 3 in the tunnel 2 are connected to the floor panel 1 and the closed section reinforcement part 4. It is connected and supported at the overlapping joint portion 16 with the side end portion of the tunnel 2 in the width direction. The floor panel 1 is made up of a pair of left and right panels connected via a panel 5 forming the tunnel 2. Further, both sides of the lower end of the tunnel-constituting panel 5 are bent outward so that the cross section becomes an upward U-shape, and the bent portions are connected to the floor panel 1 from below, whereby the above-mentioned The closed cross-section reinforcement part 4 is formed by the tunnel structure panel 5 and the floor panel 1. Further, the overlapping joint portion 16 that supports the end portion of the tank band 12 is a bent inclined surface extending from the general portion of the floor panel 1 to the tunnel 2. As shown in FIG. 1, the tank band 12 extends between the top and side surfaces of the fuel tank 3 and the inner peripheral surface inside the tunnel 2 at three locations (multiple locations) in the longitudinal direction of the fuel tank 3. The arranged cushioning material 13 is supported from below in the pressing direction. As shown in an enlarged view in FIG. 3, the connection structure of the tank band 12 to the overlapping joint 16 includes a bolt 14 passing through the overlapping joint 16 and the end of the tank band 12, and a bolt 14 attached thereto. Both are overlapped and tightened and fixed by a screwing nut 15. In the case of this embodiment, closed section reinforcing sections 4 are formed adjacent to both sides of the lower end of the tunnel 2, and the lower ends of the closed section reinforcing sections 4 protrude below the lower end of the fuel tank 3 in the tunnel 2. Therefore, the fuel tank 3 can be protected from obstacles when the vehicle runs onto a curb. In addition, the closed section reinforcement part 4
are arranged on both sides of the lower part of the fuel tank 3, so that the floor rigidity especially around the fuel tank 3 can be improved. Further, since the end of the tank band 12 for supporting the fuel tank 3 is fastened and fixed to the overlapping joint 16 of the closed section reinforcing part 4 and the floor panel 1, the end of the tank band 12 can be firmly supported on the body side, and therefore, the fuel tank 3 can be stably supported within the tunnel 2. Furthermore, in the above embodiment, the overlapping joint portion 16 extends from the general portion of the floor panel 1 to the tunnel 2.
Since the curved slope surface is formed at the end position of the closed section reinforcing section 4 on the tunnel 2 side, the distance of the closed section reinforcing section 4 from the fuel tank 3 can be shortened to protect the fuel tank 3. This can be made more reliable, and by arranging the tank band 12 between the closed cross section reinforcing parts 4 and higher than this, the tank band 12 can also be protected from obstacles and the like. In addition, in order to sufficiently withstand the cart of the fuel tank 3, the end of the tank band 12 must be connected to the tunnel 2.
It is preferable to support the fuel tank 3 on the vertical wall portion of the fuel tank 3, but in this case, the tank capacity becomes small, and if the fuel tank 3 is supported on the general part of the floor panel 1, the tensile force for lifting the fuel tank 3 becomes small. On the other hand, since the overlapping joint portion 16 is a curved inclined surface,
Sufficient lifting tension can be obtained without reducing tank capacity. Furthermore, in the case of the above embodiment, since the floor panel 1 and the tunnel component panel 5 are separate bodies,
Even if the height of the tunnel is too high to form a tunnel from the floor panel 1, there is an advantage that the tunnel 2 can be formed by drawing the tunnel forming panel 5 deeply. In addition, in the above embodiment, the floor panel 1 and the tunnel structure panel 5 are separate bodies, but the present invention is not limited to this, and for example, the fourth
As shown in the figure, the tunnel 2 may be formed continuously and integrally from the floor panel 1 by drawing. In the case of this embodiment, since the tunnel 2 is integrated with the floor panel 1, there is an advantage that it is easy to manufacture. Further, the length of the closed section reinforcing section 4 in the above embodiment may be at least within the length of the fuel tank 3. Therefore, for example, the closed section reinforcing section 4 may be formed over the entire length of the tunnel 2. You can do it like this.
本発明は、上記にように構成したので、例えば
自動車が縁石に乗上げた場合等に燃料タンクの下
面が該縁石等に接触することを防止して燃料タン
クの下面を保護することができると共に、該燃料
タンクをトンネル内に強固に支持し、且つ、フロ
ア剛性の向上を図ることができるという優れた効
果を有する。
Since the present invention is configured as described above, it is possible to protect the lower surface of the fuel tank by preventing the lower surface of the fuel tank from coming into contact with the curb, etc., for example, when a car runs onto a curb. This has the excellent effect of firmly supporting the fuel tank within the tunnel and improving floor rigidity.
第１図は本発明に係る車体フロア構造を実施し
た自動車の要部を示す略示断面図、第２図は同実
施例の要部を示す、一部断面とした斜視図、第３
図は第１図の−線に沿う拡大断面図、第４図
は本発明の他の実施例の要部を示す第３図と同様
の断面図である。
１……フロアパネル、２……トンネル、３……
燃料タンク、４……閉断面補強部、１２……タン
クバンド、１４，１５……ボルト・ナツト、１６
……重ね合わせ接合部。
FIG. 1 is a schematic cross-sectional view showing the main parts of an automobile in which the car body floor structure according to the present invention is implemented, FIG. 2 is a partially sectional perspective view showing the main parts of the same embodiment, and FIG.
This figure is an enlarged sectional view taken along the line - in FIG. 1, and FIG. 4 is a sectional view similar to FIG. 3 showing the main part of another embodiment of the present invention. 1...floor panel, 2...tunnel, 3...
Fuel tank, 4...Closed section reinforcement part, 12...Tank band, 14, 15...Bolt/nut, 16
...overlap joint.
Claims (1)
で、下方が開口する車両前後方向のトンネルが形
成され、該トンネル内に燃料タンクが配置されて
なる自動車の車体フロア構造において、前記トン
ネルの下向き開口の幅方向両側に隣接し、且つ下
端が前記燃料タンク下端より低位置に突出する下
向きに凸の閉断面補強部を、車両前後方向に少な
くとも前記燃料タンクの長さ範囲で配置すると共
に、その幅方向両端部を前記フロアパネルに下方
から重ね合わせて接合し、前記トンネル内に前記
燃料タンクを吊下げ支持するタンクバンドの端部
を、前記フロアパネルと閉断面補強部幅方向トン
ネル側端部との重ね合わせ接合部に連結支持して
なる自動車の車体フロア構造。 ２ 前記タンクバンドの端部を支持する重ね合わ
せ接合部を、前記フロアパネル一般部から前記ト
ンネルに至る屈曲傾斜面とすることを特徴とする
特許請求の範囲第１項記載の自動車の車体フロア
構造。[Scope of Claims] 1. An automobile body floor structure in which a tunnel in the longitudinal direction of the vehicle is formed in the widthwise center of the floor panel and is convex upward and open at the bottom, and a fuel tank is disposed within the tunnel. , a downwardly convex closed section reinforcing portion that is adjacent to both sides in the width direction of the downward opening of the tunnel and whose lower end protrudes at a lower position than the lower end of the fuel tank is installed at least in a length range of the fuel tank in the longitudinal direction of the vehicle. At the same time, both ends of the tank band in the width direction are overlapped and joined to the floor panel from below, and the ends of the tank band that suspends and supports the fuel tank in the tunnel are connected to the floor panel and the closed section reinforcement part. An automobile body floor structure that is connected and supported at the overlapping joint with the tunnel side end in the width direction. 2. The vehicle body floor structure of claim 1, wherein the overlapping joint portion supporting the end portion of the tank band is a bent slope extending from the general floor panel portion to the tunnel. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8723381A JPS57201776A (en) | 1981-06-05 | 1981-06-05 | Construction of floor of car body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8723381A JPS57201776A (en) | 1981-06-05 | 1981-06-05 | Construction of floor of car body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57201776A JPS57201776A (en) | 1982-12-10 |
| JPS6359911B2 true JPS6359911B2 (en) | 1988-11-22 |
Family
ID=13909125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8723381A Granted JPS57201776A (en) | 1981-06-05 | 1981-06-05 | Construction of floor of car body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57201776A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06158763A (en) * | 1992-11-24 | 1994-06-07 | Y K K Architect Prod Kk | Longitudinal connection structure of panel unit |
| JP2005247178A (en) * | 2004-03-05 | 2005-09-15 | Mazda Motor Corp | Vehicular fuel tank disposition structure |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6058588U (en) * | 1983-09-30 | 1985-04-23 | マツダ株式会社 | car floor structure |
| US4723810A (en) * | 1984-06-18 | 1988-02-09 | Mazda Motor Corporation | Underbody structure for vehicle |
| DE3831480A1 (en) * | 1988-09-16 | 1990-03-22 | Audi Ag | FLOOR PAN FOR A MOTOR VEHICLE |
| JP2006188116A (en) * | 2005-01-04 | 2006-07-20 | Nissan Motor Co Ltd | Brake master cylinder mounting structure of vehicle |
-
1981
- 1981-06-05 JP JP8723381A patent/JPS57201776A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06158763A (en) * | 1992-11-24 | 1994-06-07 | Y K K Architect Prod Kk | Longitudinal connection structure of panel unit |
| JP2005247178A (en) * | 2004-03-05 | 2005-09-15 | Mazda Motor Corp | Vehicular fuel tank disposition structure |
| JP4678473B2 (en) * | 2004-03-05 | 2011-04-27 | マツダ株式会社 | Vehicle fuel tank arrangement structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57201776A (en) | 1982-12-10 |
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