JP2515941Y2 - Subtank mounting structure for fuel tank - Google Patents
Subtank mounting structure for fuel tankInfo
- Publication number
- JP2515941Y2 JP2515941Y2 JP1990004549U JP454990U JP2515941Y2 JP 2515941 Y2 JP2515941 Y2 JP 2515941Y2 JP 1990004549 U JP1990004549 U JP 1990004549U JP 454990 U JP454990 U JP 454990U JP 2515941 Y2 JP2515941 Y2 JP 2515941Y2
- Authority
- JP
- Japan
- Prior art keywords
- tank
- sub
- convex
- fuel tank
- bead
- 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
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は燃料タンクのサブタンク取付構造に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a sub-tank mounting structure for a fuel tank.
一般に、燃料タンクの底部には、燃料の液面が車体加
速度によって傾いても、常に所定の液面を保持して燃料
の吸い上げ不良を防止するために、サブタンクと呼ばれ
るカップ状の容器がスポット溶接にて固定されている。
ところが、走行時の振動等によって燃料タンクが上下方
向に振動すると、燃料タンク本体の底部に撓みが発生
し、そのため燃料タンク本体の底部とサブタンクとの間
に剪断力が作用し、サブタンクのスポット溶接部が外れ
るおそれがあった。この問題は、薄肉鋼板で平型に形成
した燃料タンクにおいて起こりやすい。In general, a cup-shaped container called a sub-tank is spot-welded at the bottom of a fuel tank in order to prevent a defective suction of the fuel by always maintaining a predetermined liquid level even if the fuel level is tilted due to vehicle body acceleration. It is fixed in.
However, when the fuel tank vibrates in the vertical direction due to vibrations etc. during traveling, bending occurs at the bottom of the fuel tank body, which causes shearing force between the bottom of the fuel tank body and the sub tank, resulting in spot welding of the sub tank. There was a risk that the parts would come off. This problem is likely to occur in a fuel tank formed flat with a thin steel plate.
このような問題を解決するため、実開昭61−203127号
公報に示されるように、燃料タンク本体の底部に形成さ
れるサブタンク取付面の周囲にビードを設け、サブタン
ク取付面の撓みを防止したものが提案されている。In order to solve such a problem, as shown in Japanese Utility Model Laid-Open No. 61-203127, a bead is provided around the sub tank mounting surface formed at the bottom of the fuel tank body to prevent the sub tank mounting surface from bending. Things have been proposed.
ところが、上記のようにサブタンク取付面の全周にビ
ードを形成すると、サブタンクの底面が小さい場合には
問題ないが、ある程度の大きさを有する場合にはビード
の効果が低減し、ビードで囲まれた範囲の面剛性が低下
することによってサブタンク取付面に撓みが発生し、ス
ポット溶接箇所が剥離するおそれがあった。また、サブ
タンク取付面の全周をビードで取り囲むと、取付面の平
面度が低下し、歪みが発生しやすい。However, if a bead is formed on the entire circumference of the sub-tank mounting surface as described above, there is no problem if the bottom surface of the sub-tank is small, but if it has a certain size, the effect of the bead is reduced and the bead is surrounded. There is a possibility that the sub-tank mounting surface may bend due to the decrease in the surface rigidity in the above range, and the spot welded portion may peel off. Further, if the entire circumference of the sub tank mounting surface is surrounded by the bead, the flatness of the mounting surface decreases, and distortion is likely to occur.
そこで、本考案の目的は、サブタンクの底面がある程
度の大きさを有する場合であっても、スポット溶接箇所
の剥離を確実に防止できる燃料タンクのサブタンク取付
構造を提供することにある。Therefore, an object of the present invention is to provide a sub-tank mounting structure for a fuel tank that can reliably prevent the spot welding spot from peeling even when the bottom surface of the sub-tank has a certain size.
上記目的を達成するため、本考案は、燃料タンク本体
の底部上面に互いに平行な第１と第２の凸ビードを形成
するとともに、第1,第２の凸ビードと直交しかつ第1,第
２の凸ビードの中間部どうしを連結する第３の凸ビード
を形成する一方、サブタンクの底部の幅寸法を第１と第
２の凸ビードの間隔より幅狭とし、かつ第３の凸ビード
を跨ぐようにサブタンクの底部下面に幅方向に貫通する
トンネル部を形成し、このトンネル部を挟んでその両側
のサブタンクの底部を燃料タンク本体の第１〜第３の凸
ビードで三辺が囲まれた平坦な底部上面にスポット溶接
したものである。In order to achieve the above object, the present invention forms first and second convex beads parallel to each other on the upper surface of the bottom of the fuel tank body, and is orthogonal to the first and second convex beads and first and second. While forming the third convex bead that connects the intermediate portions of the second convex beads, the width of the bottom of the sub-tank is made narrower than the distance between the first and second convex beads, and the third convex bead is formed. A tunnel portion is formed on the lower surface of the bottom of the sub-tank so as to extend across it, and the bottom of the sub-tank on both sides of the tunnel is sandwiched by the first to third convex beads of the fuel tank body on three sides. It was spot welded to the flat top surface of the flat bottom.
燃料タンク本体の底部に撓みが発生すると、サブタン
クとのスポット溶接部には剪断力が発生する。ところ
が、本考案ではスポット溶接部が互いに直交する第１〜
第３の凸ビードで三辺が囲まれているので、スポット溶
接部付近の面剛性が高くなり、平面度も低下しない。し
かも、サブタンクの底面がある程度の大きさを有する場
合であっても、サブタンクが第３凸ビードを跨いだ状態
で燃料タンク本体とスポット溶接されているので、各ス
ポット溶接部が小面積に分断され、それぞれの面剛性が
向上する。したがって、スポット溶接部の剥離が確実に
防止できる。When the bottom portion of the fuel tank body is bent, shearing force is generated at the spot welded portion with the sub tank. However, according to the present invention, the spot welded portions are orthogonal to each other
Since the three sides are surrounded by the third convex bead, the surface rigidity in the vicinity of the spot weld is increased and the flatness is not lowered. Moreover, even if the bottom surface of the sub-tank has a certain size, since the sub-tank is spot-welded to the fuel tank main body while straddling the third convex bead, each spot weld is divided into small areas. , The surface rigidity of each is improved. Therefore, peeling of the spot welded portion can be reliably prevented.
図面は本考案にかかる燃料タンクの一例を示す。 The drawings show an example of a fuel tank according to the present invention.
燃料タンク１は薄肉鋼板よりなる上側パン２と下側パ
ン３とをその周辺部で溶接固定してなるものであり、平
型タンクを形成している。下側パン３にはその底部から
側壁部にかけて車体前後方向に複数の補強用ビード４が
形成されている。また、下側パン３の底部にはサブタン
ク７がスポット溶接にて固定されている。下側パン３の
サブタンク取付部には、第３図のように車幅方向に延び
る平行な２本の第1,第２の凸ビード5a,5bと、これら凸
ビード5a,5bと直交する１本の第３凸ビード６とが形成
されており、これら凸ビードによって略Ｈ形状を呈して
いる。第1,第２凸ビード5a,5bはその断面が第４図のよ
うに半円弧形状であるのに対し、第３凸ビード６は第５
図のような台形形状であり、第1,第２の凸ビード5a,5b
の高さt1は第３凸ビード６の高さt2より高い。なお、第
1,第２凸ビード5a,5bのうち、第１凸ビード5aは後述す
る連通パイプ８との干渉を防止するため、第２凸ビード
5bに比べて短い。The fuel tank 1 is formed by welding and fixing an upper pan 2 and a lower pan 3 made of thin steel plates at their peripheral portions, and forms a flat tank. A plurality of reinforcing beads 4 are formed in the lower pan 3 in the vehicle front-rear direction from the bottom to the side wall. A sub tank 7 is fixed to the bottom of the lower pan 3 by spot welding. In the sub-tank mounting portion of the lower pan 3, as shown in FIG. 3, two parallel first and second convex beads 5a, 5b extending in the vehicle width direction and 1 orthogonal to these convex beads 5a, 5b. A third convex bead 6 of a book is formed, and the convex bead has a substantially H shape. The cross sections of the first and second convex beads 5a and 5b are semicircular as shown in FIG. 4, whereas the third convex bead 6 is the fifth.
It has a trapezoidal shape as shown, and the first and second convex beads 5a, 5b
The height t 1 of the third convex bead 6 is higher than the height t 2 . In addition,
Of the first and second convex beads 5a and 5b, the first convex bead 5a is the second convex bead 5a in order to prevent interference with the communication pipe 8 described later.
Shorter than 5b.
サブタンク７は薄肉鋼板をカップ形状に深絞り加工し
たものであり、その底部近傍の側壁には内外に連通する
略Ｌ字形の連通パイプ８が溶接等によって固定されてい
る。サブタンク７の底部の幅寸法は、第1,第２凸ビード
5a,5bの間隔より幅狭に設定されている。サブタンク７
の底部中央には車体前後方向に台形状のトンネル部7aが
形成されている。サブタンク７を上記燃料タンク１のサ
ブタンク取付部に設置すると、トンネル部7aが第３凸ビ
ード６上に嵌合し、トンネル部7aの両側の平坦部7bが第
３凸ビード６の両側の平坦面3aに密着する。この状態
で、サブタンク７の平坦部7bが燃料タンク１の平坦部3a
に対し、第１〜第３凸ビード5a,5b,6で三辺が囲まれた
領域で合計４点でスポット溶接９される（第２図参
照）。The sub-tank 7 is formed by deep-drawing a thin steel plate into a cup shape, and a substantially L-shaped communication pipe 8 communicating with the inside and the outside is fixed to the side wall near the bottom of the sub-tank 7 by welding or the like. The width of the bottom of the sub tank 7 is the first and second convex beads.
The width is set narrower than the distance between 5a and 5b. Sub tank 7
A trapezoidal tunnel portion 7a is formed in the center of the bottom of the vehicle in the front-rear direction of the vehicle body. When the sub tank 7 is installed on the sub tank mounting portion of the fuel tank 1, the tunnel portion 7a is fitted on the third convex bead 6, and the flat portions 7b on both sides of the tunnel portion 7a are flat surfaces on both sides of the third convex bead 6. Stick to 3a. In this state, the flat portion 7b of the sub-tank 7 is replaced by the flat portion 3a of the fuel tank 1.
On the other hand, spot welding 9 is performed at a total of 4 points in a region surrounded by the first to third convex beads 5a, 5b, 6 on three sides (see FIG. 2).
なお、10は燃料吐出パイプ、11は帰還パイプである。 In addition, 10 is a fuel discharge pipe and 11 is a return pipe.
上記構造の燃料タンク１において、車体振動等によっ
て燃料タンク１の底部が下方へ撓むと、サブタンク７の
スポット溶接部９間には剪断力が発生し、スポット溶接
部９が外れるおそれがある。ところが、スポット溶接部
９の近傍に凸ビード5a,5b,6が形成されているので、ス
ポット溶接部９付近の面剛性が高くなる。しかも、サブ
タンク７が第３凸ビード６を跨いだ状態でスポット溶接
されているので、各サブタンク取付面3a（7b）が小面積
に分断され、それぞれの面剛性が向上する。したがっ
て、スポット溶接部９の剥離を確実に防止できる。In the fuel tank 1 having the above structure, when the bottom portion of the fuel tank 1 is bent downward due to vehicle body vibration or the like, shearing force is generated between the spot welded portions 9 of the sub tank 7, and the spot welded portions 9 may come off. However, since the convex beads 5a, 5b, 6 are formed near the spot welded portion 9, the surface rigidity near the spot welded portion 9 becomes high. Moreover, since the sub-tank 7 is spot-welded while straddling the third convex bead 6, each sub-tank mounting surface 3a (7b) is divided into a small area, and the surface rigidity of each is improved. Therefore, the peeling of the spot welded portion 9 can be reliably prevented.
なお、上記実施例では第1,第２凸ビード5a,5bを断面
半円形状とし、第３凸ビード６を断面台形状とするとと
もに、第1,第２凸ビード5a,5bの高さt1を第３凸ビード
６の高さt2より高くしたが、これに限るものではなく、
第１〜第３凸ビードを同一高さの断面半円形状ビードと
してもよい。また、第1,第２凸ビードおよび第３凸ビー
ドの延在方向は、それぞれ燃料タンク本体の長辺方向お
よび短辺方向に限らない。ただ、実施例のように燃料タ
ンク１が略長方形状の場合、燃料タンク本体の底部が撓
んだときの曲率半径は短辺方向の方が大きいので、高さ
の低い第３凸ビード６を短辺方向に形成した方が、ビー
ドの腰折れを防止する点で有効である。In the above embodiment, the first and second convex beads 5a and 5b have a semicircular cross section, the third convex bead 6 has a trapezoidal cross section, and the height t of the first and second convex beads 5a and 5b is t. Although 1 is made higher than the height t 2 of the third convex bead 6, it is not limited to this.
The first to third convex beads may be semi-circular beads having the same height in cross section. Further, the extending directions of the first, second convex bead and the third convex bead are not limited to the long side direction and the short side direction of the fuel tank main body, respectively. However, when the fuel tank 1 has a substantially rectangular shape as in the embodiment, since the radius of curvature when the bottom of the fuel tank body is bent is larger in the short side direction, the third convex bead 6 having a lower height is used. Forming in the direction of the short side is effective in preventing the waist of the bead from breaking.
また、第1,第２凸ビード5a,5bを長さの異なる２本の
凸ビードで構成したが、これは連通パイプ８との干渉を
防止するためであって、第1,第２凸ビードが同一長さで
あってもよい。Further, the first and second convex beads 5a, 5b are composed of two convex beads having different lengths, but this is to prevent interference with the communicating pipe 8, and the first and second convex beads May have the same length.
以上の説明で明らかなように、本考案によれば燃料タ
ンクに互いに直交する第１〜第３の凸ビードを形成し、
かつサブタンクを第３凸ビードを跨いだ状態で燃料タン
ク本体とスポット溶接したので、各スポット溶接部の面
剛性が向上し、燃料タンク本体の底部に撓みが発生して
も、スポット溶接部の剥離を確実に防止できる。As is clear from the above description, according to the present invention, first to third convex beads that are orthogonal to each other are formed in the fuel tank,
Moreover, since the sub tank is spot-welded to the fuel tank main body while straddling the third convex bead, the surface rigidity of each spot weld is improved, and even if the bottom of the fuel tank main body is bent, the spot weld is separated. Can be reliably prevented.
第１図は本考案にかかる燃料タンクの断面図、第２図は
その一部切欠平面図、第３図は要部の分解斜視図、第４
図，第５図はそれぞれ第３図のIV−IV線断面図およびＶ
−Ｖ線断面図である。 １…燃料タンク、３…下側パン、3a…平坦面、5a…第１
凸ビード、5b…第２凸ビード、６…第３凸ビード、７…
サブタンク、7a…トンネル部、7b…平坦部。FIG. 1 is a sectional view of a fuel tank according to the present invention, FIG. 2 is a partially cutaway plan view thereof, FIG. 3 is an exploded perspective view of essential parts, and FIG.
5 and 5 are respectively a sectional view taken along line IV-IV and V in FIG.
It is a -V line sectional view. 1 ... Fuel tank, 3 ... Lower pan, 3a ... Flat surface, 5a ... 1st
Convex bead, 5b ... second convex bead, 6 ... third convex bead, 7 ...
Sub tank, 7a ... tunnel part, 7b ... flat part.
Claims (1)
第１と第２の凸ビードを形成するとともに、第1,第２の
凸ビードと直交しかつ第1,第２の凸ビードの中間部どう
しを連結する第３の凸ビードを形成する一方、サブタン
クの底部の幅寸法を第１と第２の凸ビードの間隔より幅
狭とし、かつ第３の凸ビードを跨ぐようにサブタンクの
底部下面に幅方向に貫通するトンネル部を形成し、この
トンネル部を挟んでその両側のサブタンクの底部を燃料
タンク本体の第１〜第３の凸ビードで三辺が囲まれた平
坦な底部上面にスポット溶接したことを特徴とする燃料
タンクのサブタンク取付構造。1. A first and a second convex bead which are parallel to each other are formed on an upper surface of a bottom portion of a fuel tank main body, and are orthogonal to the first and the second convex bead, and are between the first and the second convex bead. While forming a third convex bead that connects the parts, the width of the bottom of the sub-tank is narrower than the distance between the first and second convex beads, and the bottom of the sub-tank is formed so as to straddle the third convex bead. A tunnel portion is formed on the lower surface so as to penetrate in the width direction, and the bottom portion of the sub-tank on both sides of the tunnel portion is sandwiched between the flat bottom surface of the fuel tank body surrounded by the first to third convex beads on three sides. Spot tank welded sub tank mounting structure for fuel tanks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990004549U JP2515941Y2 (en) | 1990-01-22 | 1990-01-22 | Subtank mounting structure for fuel tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990004549U JP2515941Y2 (en) | 1990-01-22 | 1990-01-22 | Subtank mounting structure for fuel tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0396227U JPH0396227U (en) | 1991-10-01 |
| JP2515941Y2 true JP2515941Y2 (en) | 1996-11-06 |
Family
ID=31508291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990004549U Expired - Fee Related JP2515941Y2 (en) | 1990-01-22 | 1990-01-22 | Subtank mounting structure for fuel tank |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2515941Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012046733A1 (en) * | 2010-10-05 | 2012-04-12 | 新日本製鐵株式会社 | Fuel tank for vehicle |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61203127U (en) * | 1985-06-11 | 1986-12-20 | ||
| JPH0162126U (en) * | 1987-10-15 | 1989-04-20 |
-
1990
- 1990-01-22 JP JP1990004549U patent/JP2515941Y2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012046733A1 (en) * | 2010-10-05 | 2012-04-12 | 新日本製鐵株式会社 | Fuel tank for vehicle |
| JP2013216317A (en) * | 2010-10-05 | 2013-10-24 | Nippon Steel & Sumitomo Metal Corp | Fuel tank for vehicle |
| KR101473125B1 (en) * | 2010-10-05 | 2014-12-15 | 신닛테츠스미킨 카부시키카이샤 | Fuel tank for vehicle |
| CN103153672B (en) * | 2010-10-05 | 2016-01-20 | 新日铁住金株式会社 | Fuel box for vehicle |
| US9944169B2 (en) | 2010-10-05 | 2018-04-17 | Nippon Steel & Sumitomo Metal Corporation | Fuel tank for vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0396227U (en) | 1991-10-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4175107B2 (en) | Vehicle floor panel | |
| JP2009185651A (en) | Oil pan | |
| JP2515941Y2 (en) | Subtank mounting structure for fuel tank | |
| TWI462845B (en) | Vehicle fuel tank | |
| JP2504312Y2 (en) | Subtank mounting structure for fuel tank | |
| JP3846658B2 (en) | Structure of vehicle fuel tank | |
| CN217554010U (en) | Rear wheel bulge planking assembly and overlap joint structure thereof | |
| JP2563004Y2 (en) | Automotive fuel tank | |
| JP4691971B2 (en) | Vehicle canister arrangement structure | |
| JP2000158956A (en) | Fuel tank for automobile | |
| JP6036216B2 (en) | Internal structure of fuel tank | |
| JP2744424B2 (en) | Vehicle fuel tank | |
| JP3402946B2 (en) | Mounting structure of sub tank in fuel tank | |
| JPH11278067A (en) | Fuel tank for vehicle | |
| JP4035928B2 (en) | Fuel tank arrangement structure | |
| JP4120919B2 (en) | Roof panel structure | |
| JPS6024651Y2 (en) | Betsel lateral vibration prevention device for dump trucks | |
| JP3656409B2 (en) | Drain structure of oil pan of internal combustion engine | |
| JP4032790B2 (en) | Car body rear structure | |
| JP2002321537A (en) | Fuel tank for vehicle | |
| JP7274119B2 (en) | vehicle undercarriage | |
| JPH0621833Y2 (en) | Rear body structure of automobile | |
| JP2532532Y2 (en) | Tank structure of small excavator | |
| JPH0236734Y2 (en) | ||
| JPH0214545Y2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |