JPH04254276A - Fuel tank for motorcycle - Google Patents
Fuel tank for motorcycleInfo
- Publication number
- JPH04254276A JPH04254276A JP3333291A JP3333291A JPH04254276A JP H04254276 A JPH04254276 A JP H04254276A JP 3333291 A JP3333291 A JP 3333291A JP 3333291 A JP3333291 A JP 3333291A JP H04254276 A JPH04254276 A JP H04254276A
- Authority
- JP
- Japan
- Prior art keywords
- fuel tank
- inner plate
- plate
- welding
- fold edge
- 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.)
- Pending
Links
- 239000002828 fuel tank Substances 0.000 title claims abstract description 23
- 229910001234 light alloy Inorganic materials 0.000 claims abstract description 12
- 238000003466 welding Methods 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000000465 moulding Methods 0.000 abstract 1
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Landscapes
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】この発明は、軽合金製の自動二輪
車の燃料タンクに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a fuel tank for a motorcycle made of light alloy.
【０００２】0002
【従来の技術】自動二輪車は、車体の軽量化が求められ
ており、燃料タンクは軽合金板を用いて作って軽量化を
図っている。軽合金製の燃料タンクは、鋼板製のタンク
に比べて剛性が低く、溶接部分の強度も低い。軽合金板
の厚さを厚くし、溶接部分の接着代を大きくとって、確
実に溶接するようにしている。2. Description of the Related Art Motorcycles are required to have lighter bodies, and fuel tanks are made of light alloy plates to reduce the weight. Fuel tanks made of light alloy have lower rigidity than tanks made of steel plates, and the strength of the welded parts is also lower. The thickness of the light alloy plate is increased and the adhesive allowance at the welded part is increased to ensure reliable welding.
【０００３】0003
【発明が解決しようとする課題】燃料タンクに用いる軽
合金板の板厚さを厚くし、接着代も大きくして溶接部分
を強化するのは、溶接手間がかかり、軽量化に逆行して
不都合である。[Problem to be solved by the invention] Increasing the thickness of the light alloy plate used for fuel tanks and increasing the adhesive allowance to strengthen the welded parts is inconvenient as it takes a lot of welding time and goes against the weight reduction goal. It is.
【０００４】かかる点に鑑み、この発明は、燃料タンク
全体を軽合金の薄板でできて、軽量で剛性の高い自動二
輪車の燃料タンクを得ることを目的とする。[0004] In view of the above, an object of the present invention is to provide a lightweight and highly rigid fuel tank for a motorcycle, in which the entire fuel tank is made of a thin plate of light alloy.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
に、この発明の自動二輪車の燃料タンクは、軽合金板を
プレス成形した外板と内板を中空にして重ね合せ、外板
の外周に設けた折曲げ縁を内板の外周外側に重ねて折曲
げ縁の端縁を内板に溶接し、下側を中心に適宜間隔に折
曲げ縁と内板を栓溶接したことにある。[Means for Solving the Problems] In order to achieve the above object, the fuel tank for a motorcycle of the present invention has an outer plate press-formed from a light alloy plate and an inner plate that are hollow and overlapped, and the outer circumference of the outer plate is The bent edge provided on the inner plate is overlapped on the outside of the outer periphery of the inner plate, the edge of the bent edge is welded to the inner plate, and the bent edge and the inner plate are plug-welded at appropriate intervals centering on the lower side.
【０００６】[0006]
【作用】自動二輪車がジャンプして着地するときは、燃
料タンク内の燃料が下方に叩きつけられ、内部圧力が上
昇し、特に下側の外板の折曲げ縁の端縁と内板の溶接部
分を離すような衝撃応力が加わる。このとき、外板の折
曲げ縁の端縁と内板の溶接個所に加えて、折曲げ縁と内
板の栓溶着部分が応力を分担することができるので、剛
性が高くて溶接部分の割れを防止できる。こうして、全
体に燃料タンクを薄い軽合金板製にできて、剛性の高い
ものにでき、軽量化できる。[Effect] When a motorcycle jumps and lands, the fuel in the fuel tank is slammed downward, increasing the internal pressure, especially at the welded area between the bent edge of the lower outer plate and the inner plate. An impact stress is applied that causes the parts to separate. At this time, in addition to the welded area between the bent edge of the outer plate and the inner plate, the stress can be shared by the bent edge and the welded part of the plug between the inner plate. can be prevented. In this way, the entire fuel tank can be made of thin light alloy plate, making it highly rigid and lightweight.
【０００７】[0007]
【実施例】以下、本発明の実施例を図１乃至図６によっ
て説明する。燃料タンク１は、左右一対にしてあって、
自動二輪車のフレーム２の前上部左右に取付ける。燃料
タンク１は、軽合金板を椀状にプレス成形した外板３と
内板４を設け、外板３と内板４を中空にして重ねる。そ
して、外板３の周囲に設けた折曲げ縁５を内板４の外周
の外側に折曲げて重ね、折曲げ縁５の端縁を内板４に溶
接６する。更に、下側を中心にして、適宜間隔に折曲げ
縁５と内板４を栓溶着７する。Embodiments Hereinafter, embodiments of the present invention will be explained with reference to FIGS. 1 to 6. The fuel tanks 1 are arranged in a pair on the left and right,
Attaches to the upper front left and right sides of the motorcycle frame 2. The fuel tank 1 has an outer plate 3 and an inner plate 4 formed by press-forming light alloy plates into a bowl shape, and the outer plate 3 and the inner plate 4 are stacked in a hollow manner. Then, the bent edge 5 provided around the outer plate 3 is bent and overlapped with the outer circumference of the inner plate 4, and the edge of the bent edge 5 is welded 6 to the inner plate 4. Furthermore, the bent edge 5 and the inner plate 4 are plug-welded 7 at appropriate intervals centering on the lower side.
【０００８】自動二輪車がジャンプして着地するときは
、燃料タンク１内の燃料が下側に叩きつけられて、燃料
タンク１内の特に下部の内圧が上昇して衝撃応力が加わ
る。この応力を外板３の折曲げ縁５の端縁と内板４の溶
接６部分と、折曲げ縁５と内板４の栓溶接７部分で受け
る。栓溶接７の部分でも衝撃応力を受けることによって
応力の分散が図れる。これによって、外板３と内板４の
板厚さを１．６ｍｍ程のものにしても充分に剛性のある
ものにできる。When a motorcycle jumps and lands, the fuel in the fuel tank 1 is slammed downward, increasing the internal pressure in the fuel tank 1, especially in the lower part, and applying impact stress. This stress is received at a weld 6 portion between the bent edge 5 of the outer plate 3 and the inner plate 4, and at a plug weld 7 portion between the bent edge 5 and the inner plate 4. Stress distribution can be achieved by receiving impact stress at the plug weld 7 as well. As a result, even if the outer plate 3 and inner plate 4 are made to have a thickness of about 1.6 mm, they can have sufficient rigidity.
【０００９】[0009]
【発明の効果】以上説明したように、この発明は上述の
ように構成したので、最も大きい応力を受けるジャンプ
後の着地時の衝撃応力を、外板の折曲げ縁の端縁と内板
の溶接部分に加えて、外板の折曲げ縁と内板の栓溶接部
分にも分担させることができて、応力を分散し、薄い軽
合金板で軽量で剛性ある燃料タンクにできる。Effects of the Invention As explained above, since the present invention is constructed as described above, the impact stress at the time of landing after a jump, which is subjected to the largest stress, can be reduced between the edge of the bent edge of the outer panel and the inner panel. In addition to the welding part, the bending edge of the outer plate and the plug welding part of the inner plate can be used to distribute the stress, making it possible to create a lightweight and rigid fuel tank using a thin light alloy plate.
図は本発明の実施例を示すもので、 The figure shows an embodiment of the invention.
【図１】横断平面図である。FIG. 1 is a cross-sectional plan view.
【図２】図１のＡ矢示部の拡大図である。FIG. 2 is an enlarged view of a portion indicated by arrow A in FIG. 1;
【図３】側面図である。FIG. 3 is a side view.
【図４】平面図である。FIG. 4 is a plan view.
【図５】左右一対にした正面図である。FIG. 5 is a front view of a left and right pair.
【図６】自動二輪車に搭載した状態の全体側面図である
。FIG. 6 is an overall side view of the device mounted on a motorcycle.
１ 燃料タンク ３ 外板 ４ 内板 ５ 折曲げ縁 ６ 溶接 ７ 栓溶接 1 Fuel tank 3 Outer panel 4 Inner plate 5 Folded edge 6 Welding 7 Plug welding
Claims (1)
を中空にして重ね合せ、外板の外周に設けた折曲げ縁を
内板の外周外側に重ねて折曲げ縁の端縁を内板に溶接し
、下側を中心に適宜間隔に折曲げ縁と内板を栓溶接した
ことを特徴とする自動二輪車の燃料タンク。Claim 1: An outer plate and an inner plate made of press-formed light alloy plates are overlapped with each other in a hollow manner, and the bent edge provided on the outer periphery of the outer plate is overlapped with the outer periphery of the inner plate, so that the edge of the bent edge is A fuel tank for a motorcycle, characterized in that the fuel tank is welded to the inner plate, and the bent edges and the inner plate are plug-welded at appropriate intervals around the lower side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3333291A JPH04254276A (en) | 1991-02-04 | 1991-02-04 | Fuel tank for motorcycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3333291A JPH04254276A (en) | 1991-02-04 | 1991-02-04 | Fuel tank for motorcycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04254276A true JPH04254276A (en) | 1992-09-09 |
Family
ID=12383604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3333291A Pending JPH04254276A (en) | 1991-02-04 | 1991-02-04 | Fuel tank for motorcycle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04254276A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6381823B1 (en) * | 1999-10-29 | 2002-05-07 | Kyle P. Krejci | Method of fabricating a gas tank |
| US6725519B2 (en) * | 1999-10-29 | 2004-04-27 | Kyle P. Krejci | Method of fabricating a gas tank |
| JP2007091156A (en) * | 2005-09-30 | 2007-04-12 | Honda Motor Co Ltd | Fuel tank arrangement structure for vehicle |
-
1991
- 1991-02-04 JP JP3333291A patent/JPH04254276A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6381823B1 (en) * | 1999-10-29 | 2002-05-07 | Kyle P. Krejci | Method of fabricating a gas tank |
| US6725519B2 (en) * | 1999-10-29 | 2004-04-27 | Kyle P. Krejci | Method of fabricating a gas tank |
| JP2007091156A (en) * | 2005-09-30 | 2007-04-12 | Honda Motor Co Ltd | Fuel tank arrangement structure for vehicle |
| JP4503519B2 (en) * | 2005-09-30 | 2010-07-14 | 本田技研工業株式会社 | Vehicle fuel tank arrangement structure |
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