JP2003040175A - Motorcycle - Google Patents
MotorcycleInfo
- Publication number
- JP2003040175A JP2003040175A JP2001234276A JP2001234276A JP2003040175A JP 2003040175 A JP2003040175 A JP 2003040175A JP 2001234276 A JP2001234276 A JP 2001234276A JP 2001234276 A JP2001234276 A JP 2001234276A JP 2003040175 A JP2003040175 A JP 2003040175A
- Authority
- JP
- Japan
- Prior art keywords
- fuel tank
- engine
- vehicle body
- motorcycle
- 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.)
- Granted
Links
Landscapes
- Axle Suspensions And Sidecars For Cycles (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、車両の旋回性能や
安定性を高めるのに好適な自動二輪車に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a motorcycle suitable for improving turning performance and stability of a vehicle.
【０００２】[0002]
【従来の技術】自動二輪車、特にスピードを競う競技用
車両には、高度なエンジン性能、各部の耐久性、車両の
旋回性能、安定性等が要求される。上記した車両の旋回
性能や安定性は、車体に装備する部品のレイアウトから
決まる重心位置に大きく影響を受ける。2. Description of the Related Art Motorcycles, especially competition vehicles that compete for speed, are required to have high engine performance, durability of each part, turning performance and stability of the vehicle. The above-described turning performance and stability of the vehicle are greatly affected by the position of the center of gravity determined by the layout of the components mounted on the vehicle body.
【０００３】このような自動二輪車の部品のレイアウト
としては、例えば、特開２０００−７２０７４公報
「自動二輪車用燃料タンク」の図３に記載されたもの、
即ち、燃料タンク４１の底４４に燃料ポンプユニット５
０を取付けて燃料タンク４１に燃料ポンプユニット５０
を内蔵させたレイアウトがある。An example of the layout of such a motorcycle component is shown in FIG. 3 of Japanese Unexamined Patent Publication No. 2000-72074 "fuel tank for motorcycle",
That is, the fuel pump unit 5 is attached to the bottom 44 of the fuel tank 41.
0 and attach the fuel pump unit 50 to the fuel tank 41.
There is a built-in layout.
【０００４】また、特開昭６２−１１３６６９号公報
「自動二輪車における排気管の支持装置」の第２図に記
載されたもの、即ち、Ｖ型エンジンＥの後部シリンダ５
ｒから後部排気管２０を後方へ延ばし、更にこの後部排
気管２０をシートＳの下方で上下に延ばしたレイアウト
がある。Further, the one shown in FIG. 2 of Japanese Patent Laid-Open No. 62-113669, "Supporting device for exhaust pipe in motorcycle", that is, the rear cylinder 5 of the V-type engine E.
There is a layout in which the rear exhaust pipe 20 extends rearward from r, and the rear exhaust pipe 20 extends vertically below the seat S.
【０００５】更に、特開平９−１４２３５８号公報
「自動二輪車のリヤサスペンション」の図１に記載され
たもの、即ち、リヤクッション４の上端をエンジン２２
の後部上部に取付け、リヤクッションユニット４の下端
をリンク機構３を介してエンジン２２の下部及びリヤア
ーム２の下部に取付けたレイアウトがある。なお、符号
については、各公報に記載されているものをそのまま使
用した。Furthermore, the one shown in FIG. 1 of Japanese Unexamined Patent Publication No. 9-142358, "Rear Suspension of Motorcycle", that is, the upper end of the rear cushion 4 is the engine 22.
There is a layout in which the rear cushion unit 4 is attached to the upper rear portion and the lower end of the rear cushion unit 4 is attached to the lower portion of the engine 22 and the lower portion of the rear arm 2 via the link mechanism 3. In addition, about the code | symbol, what was described in each publication was used as it was.
【０００６】[0006]
【発明が解決しようとする課題】上記したようなの燃
料ポンプユニット５０、の後部排気管２０及びのリ
ヤクッション４を１台の車両に配置する場合、燃料ポン
プユニット５０が底４４よりも下方に突出し、また、上
下に延びた後部排気管２０の上端位置が高いために、燃
料ポンプユニット５０と後部排気管２０とが干渉しない
ように配置する必要がある。この状態で、更にリヤクッ
ション４を配置しようとすれば、各部品をレイアウトす
るのが難しくなる。When the fuel pump unit 50, the rear exhaust pipe 20 and the rear cushion 4 as described above are arranged in one vehicle, the fuel pump unit 50 projects below the bottom 44. Further, since the upper end position of the rear exhaust pipe 20 extending vertically is high, it is necessary to arrange the fuel pump unit 50 and the rear exhaust pipe 20 so as not to interfere with each other. If the rear cushion 4 is further arranged in this state, it becomes difficult to lay out the respective parts.
【０００７】また更に、これらの燃料ポンプユニット５
０、後部排気管２０及びリヤクッション４を、干渉を防
ぐために車体前後方向に間隔を開けて配置すれば、車体
前後方向の中央位置に対してこれらの部品が車体後方へ
離れるため、車体の重心の位置が車体後方へ移動する。
これでは、車両の旋回中に、重心に作用する遠心力によ
って車体後部側が旋回方向とは逆方向に移動しようと
し、車両は運転者の意図する方向と違った旋回軌跡を描
くことになる。Furthermore, these fuel pump units 5
0, the rear exhaust pipe 20 and the rear cushion 4 are spaced apart in the front-rear direction of the vehicle body in order to prevent interference, these parts are separated from the center position in the front-rear direction of the vehicle body toward the rear of the vehicle body. The position of moves to the rear of the vehicle.
With this, during turning of the vehicle, the rear side of the vehicle body tries to move in a direction opposite to the turning direction due to the centrifugal force acting on the center of gravity, and the vehicle draws a turning trajectory different from the direction intended by the driver.
【０００８】そこで、本発明の目的は、自動二輪車に装
備する部品のレイアウトを改善することで、車両の旋回
性能や安定性を高めることにある。Therefore, an object of the present invention is to improve the turning performance and stability of the vehicle by improving the layout of the parts mounted on the motorcycle.
【０００９】[0009]
【課題を解決するための手段】上記目的を達成するため
に請求項１は、車体のほぼ中央にエンジンを配置し、こ
のエンジンの後上方に燃料タンクを配置した自動二輪車
において、エンジンから後方に延びる排気管を燃料タン
クの下方で且つ車幅方向の左右の一方に配置し、燃料タ
ンク内に設ける燃料ポンプの収納部を燃料タンクの下部
で且つ車幅方向の左右の他方に設けたことを特徴とす
る。In order to achieve the above object, the first aspect of the present invention is to provide a motorcycle in which an engine is disposed substantially in the center of a vehicle body, and a fuel tank is disposed above and behind the engine. The extending exhaust pipe is disposed below the fuel tank and on one of the left and right sides in the vehicle width direction, and the fuel pump housing provided in the fuel tank is provided below the fuel tank and on the other left and right sides in the vehicle width direction. Characterize.
【００１０】燃料タンクをシート下に配置すれば、車体
前後中心寄りに排気管及び燃料ポンプ、即ち重量の大き
な部品が集中するため、例えば、車体後部に作用する遠
心力の影響を小さくすることができ、車両の旋回性能を
高めることができる。 更に、シート下の部品によって
車体の重心が前方に寄るために、前輪の接地力が増し、
旋回時の車両の安定性を高めることができる。If the fuel tank is arranged under the seat, the exhaust pipe and the fuel pump, that is, parts having a large weight are concentrated near the front-rear center of the vehicle body. Therefore, for example, the influence of centrifugal force acting on the rear portion of the vehicle body can be reduced. Therefore, the turning performance of the vehicle can be improved. Furthermore, the center of gravity of the vehicle body moves forward due to the parts under the seat, increasing the ground contact force of the front wheels,
The stability of the vehicle when turning can be improved.
【００１１】請求項２は、エンジンを取付けた車体フレ
ームの後部にスイングアームをスイング可能に取付け、
このスイングアームの上部に、後輪から車体に伝わる衝
撃を緩和するリヤクッションユニットの上端を取付け、
このリヤクッションユニットの上端を排気管と燃料ポン
プの収納部との間に配置したことを特徴とする。According to a second aspect of the present invention, a swing arm is swingably attached to a rear portion of a vehicle body frame to which an engine is attached,
On the upper part of this swing arm, attach the upper end of the rear cushion unit that absorbs the impact transmitted from the rear wheels to the vehicle body,
It is characterized in that the upper end of the rear cushion unit is arranged between the exhaust pipe and the storage portion of the fuel pump.
【００１２】例えば、シート下に燃料タンクを配置した
場合の、シート下への部品の集中化による車両の旋回性
能、安定性をより一層高めることができる。For example, when the fuel tank is arranged under the seat, the turning performance and stability of the vehicle can be further improved by concentrating the parts under the seat.
【００１３】[0013]
【発明の実施の形態】本発明の実施の形態を添付図に基
づいて以下に説明する。なお、図面は符号の向きに見る
ものとする。図１は本発明に係る自動二輪車の側面図で
あり、自動二輪車１０は、ヘッドパイプ１１から車体後
方でやや下方に左右一対の車体フレームとしてのメイン
フレーム１２，１２（奥側のメインフレーム１２は不図
示）を延ばし、これらのメインフレーム１２，１２の下
部にＶ型５気筒エンジン１３を取付けるとともにメイン
フレーム１２，１２の後部にピボット軸１４を介してス
イングアーム１５を上下スイング可能に取付け、このス
イングアーム１５の前部上部にリヤクッションユニット
１６の上端を取付けるとともにスイングアーム１５の後
端部に後輪１７を取付け、リヤクッションユニット１６
の下端をリンク装置１８を介してメインフレーム１２の
後部下端部に取付け、エンジン１３の前側のシリンダヘ
ッド２１から気筒毎に設けた排気管２３〜２５を後方へ
延ばし、これらの排気管２３〜２５を奥側の右マフラ２
６に連結し、エンジン１３の後側のシリンダヘッド２８
から気筒毎に設けた排気管３１，３２を後方へ延ばし、
これらの排気管３１，３２を手前側の左マフラ３３に連
結し、メインフレーム１２，１２の上部から後方へシー
トを兼ねるシートカウル３４を延ばし、このシートカウ
ル３４の内側に燃料タンク３５を取付け、この燃料タン
ク３５内に燃料ポンプ３６を配置した車両である。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the accompanying drawings. The drawings should be viewed in the direction of the reference numerals. FIG. 1 is a side view of a motorcycle according to the present invention. A motorcycle 10 has a pair of left and right main frames 12 and 12 as a pair of left and right body frames (a rear main frame 12 is (Not shown) is extended, the V-type 5-cylinder engine 13 is attached to the lower part of the main frames 12 and 12, and the swing arm 15 is attached to the rear part of the main frames 12 and 12 via the pivot shaft 14 so as to be vertically swingable. The upper end of the rear cushion unit 16 is attached to the upper front part of the swing arm 15, and the rear wheel 17 is attached to the rear end of the swing arm 15.
Is attached to the rear lower end of the main frame 12 via a link device 18, and exhaust pipes 23 to 25 provided for each cylinder are extended rearward from a cylinder head 21 on the front side of the engine 13 so as to extend rearward. To the right side muffler 2
6, the cylinder head 28 on the rear side of the engine 13
The exhaust pipes 31 and 32 provided for each cylinder to the rear,
These exhaust pipes 31, 32 are connected to the left muffler 33 on the front side, a seat cowl 34 also serving as a seat is extended from the upper part of the main frames 12, 12 to the rear, and a fuel tank 35 is attached to the inside of the seat cowl 34. The vehicle has a fuel pump 36 arranged in the fuel tank 35.
【００１４】ここで、４１はヘッドパイプ１１に回転可
能に取付けたフロントフォーク、４２はフロントフォー
ク４１の下端に取付けた前輪、４３は前輪４２の上方を
覆うフロントフェンダ、４４はアッパカウル、４５はミ
ドルカウル、４６はロアカウル、４８はラジエータ、５
１はタンクカバーである。Here, 41 is a front fork rotatably attached to the head pipe 11, 42 is a front wheel attached to the lower end of the front fork 41, 43 is a front fender that covers the front wheel 42, 44 is an upper cowl, and 45 is a middle cowl. Cowl, 46 is lower cowl, 48 is radiator, 5
1 is a tank cover.
【００１５】図２は本発明に係る自動二輪車の要部側面
図であり、メインフレーム１２に設けたシートカウル取
付部５５（左右にそれぞれ２ヶ所）にシートカウル３４
を取付け、このシートカウル３４の内側に燃料タンク３
５を取付けた状態を示す。なお、５６は燃料タンク３５
の前面から突出させた突出部、５７はこの突出部５６を
断面視Ｌ字状のＬ字ラバー６１を介して受ける受け部で
ある。FIG. 2 is a side view of a main part of the motorcycle according to the present invention. The seat cowl 34 is attached to the seat cowl mounting portions 55 (two on each side) provided on the main frame 12.
Install the fuel tank 3 inside the seat cowl 34.
The state where 5 is attached is shown. Incidentally, 56 is the fuel tank 35.
Reference numeral 57 denotes a receiving portion which receives the protruding portion 56 via an L-shaped rubber 61 having an L-shaped cross section.
【００１６】図３は本発明に係る自動二輪車の燃料タン
クの第１斜視図（一部断面図）であり、燃料タンク３５
は、下部に設けた収納部としてのポンプ収納部６３に燃
料ポンプ３６（図１参照）を収納し、この燃料ポンプ３
６から車体前方（白抜き矢印（ｆｒｏｎｔ）の指す向き
が車体前方である。以下同様。）のエンジン側へ燃料を
供給するための供給側パイプ６４を延ばし、また、エン
ジン側から燃料を戻すための戻り側パイプ６５を内部ま
で延ばしたものである。FIG. 3 is a first perspective view (partially sectional view) of the fuel tank of the motorcycle according to the present invention.
Stores the fuel pump 36 (see FIG. 1) in a pump storage portion 63 provided as a storage portion in the lower portion.
In order to extend the supply side pipe 64 for supplying fuel to the engine side from 6 to the front side of the vehicle body (the direction indicated by the white arrow (front) is the front side of the vehicle body. The same applies hereinafter), and to return the fuel from the engine side. The return side pipe 65 is extended to the inside.
【００１７】図４は本発明に係る自動二輪車の燃料タン
クの第２斜視図であり、図３に示した第１斜視図とは別
の側面（裏側の側面）を見た図である。燃料タンク３５
の供給側パイプ６４及び戻り側パイプ６５は、車体前方
から燃料タンク３５の前部の側面に設けた凹部６７内を
通り、供給側パイプ６４は、燃料タンク３５の後部上方
を通り、燃料タンク３５の上部壁面を貫通して燃料タン
ク３５内の燃料ポンプ３６（図１参照）に接続する。戻
り側パイプ６５は、凹部６７内で壁面を貫通して燃料タ
ンク３５内に延びる。FIG. 4 is a second perspective view of the fuel tank of the motorcycle according to the present invention, and is a side view (side surface on the back side) different from the first perspective view shown in FIG. Fuel tank 35
The supply-side pipe 64 and the return-side pipe 65 of the fuel tank 35 pass from the front of the vehicle body into the recess 67 provided on the side surface of the front portion of the fuel tank 35, and the supply-side pipe 64 passes the upper rear portion of the fuel tank 35. Through the upper wall surface of the fuel tank 35 and connected to the fuel pump 36 (see FIG. 1) in the fuel tank 35. The return pipe 65 extends through the wall surface in the recess 67 into the fuel tank 35.
【００１８】図５は図２の５−５線断面図であり、燃料
タンク３５の後部の断面を示す。燃料タンク３５は、シ
ートカウル３４にクッション用のラバー６８を介して取
付けたものであり、燃料タンク３５の左右の壁に段部７
１，７１を設け、断面コ字形にしたシートカウル３４の
縁部に折曲げ部７２，７２を設け、段部７１，７１にラ
バー６８を介して折曲げ部７２，７２を掛けることでシ
ートカウル３４内に燃料タンク３５を固定する。FIG. 5 is a sectional view taken along line 5-5 of FIG. 2 and shows a sectional view of the rear portion of the fuel tank 35. The fuel tank 35 is attached to the seat cowl 34 via a rubber 68 for cushion, and the step portion 7 is provided on the left and right walls of the fuel tank 35.
1, 71 are provided, bent portions 72, 72 are provided at the edges of the seat cowl 34 having a U-shaped cross section, and the bent portions 72, 72 are hooked on the stepped portions 71, 71 via the rubber 68 to allow the seat cowl to be seated. The fuel tank 35 is fixed in the container 34.
【００１９】図６は図２の６−６線断面図であり、燃料
タンク３５の前部の断面を示す。燃料タンク３５は、側
面に供給側パイプ６４及び戻り側パイプ６５を通すため
の凹部６７を形成したものであり、この凹部６７によっ
て、供給側パイプ６４及び戻り側パイプ６５が燃料タン
ク３５の側方に突出しなくなるため、運転の邪魔になら
ず、また、他との干渉を防ぐことができる。FIG. 6 is a sectional view taken along line 6-6 of FIG. 2, showing a sectional view of the front portion of the fuel tank 35. The fuel tank 35 has a concave portion 67 formed on a side surface for allowing the supply-side pipe 64 and the return-side pipe 65 to pass therethrough. Since it does not protrude to the outside, it does not interfere with driving and can prevent interference with others.
【００２０】図７は本発明に係る自動二輪車の燃料タン
クの下方の配置を説明する側面図であり、燃料タンク３
５の下部にポンプ収納部６３を設け、燃料タンク３５の
下方にリヤクッションユニット１６の上端部１６ａ及び
排気管３１，３２を配置したことを示す。即ち、側面視
では、ポンプ収納部６３内に収納した燃料ポンプ３６、
リヤクッションユニット１６及び排気管３１，３２を一
つの直線７４上にほぼ重ね、特に車体の後部に配置する
ことが避けられない右マフラ２６（不図示）、左マフラ
３３やスイングアーム１５、後輪１７（不図示）を除い
ては、この直線７４よりも車体中心側、例えば、前輪４
２（図１参照）の車軸と後輪１７（図１参照）の車軸と
を結ぶ直線を二等分する点を通る鉛直線７５側に配置し
たことを示す。なお、７６はスイングアーム１５にリヤ
クッションユニット１６の上端部１６ａを取付けるため
のブラケットである。FIG. 7 is a side view for explaining the arrangement below the fuel tank of the motorcycle according to the present invention.
5 shows that the pump housing portion 63 is provided in the lower portion of the fuel cell 5, and the upper end portion 16a of the rear cushion unit 16 and the exhaust pipes 31 and 32 are disposed below the fuel tank 35. That is, in a side view, the fuel pump 36 stored in the pump storage portion 63,
The right muffler 26 (not shown), the left muffler 33, the swing arm 15, and the rear wheels, in which the rear cushion unit 16 and the exhaust pipes 31 and 32 are almost overlapped on one straight line 74, and in particular it is inevitable to arrange them in the rear part of the vehicle body. Except for 17 (not shown), the vehicle body center side of the straight line 74, for example, the front wheels 4
It is arranged on the vertical line 75 side passing through a point that bisects a straight line connecting the axle 2 (see FIG. 1) and the axle of the rear wheel 17 (see FIG. 1). Reference numeral 76 is a bracket for attaching the upper end portion 16a of the rear cushion unit 16 to the swing arm 15.
【００２１】このように、燃料ポンプ３６、リヤクッシ
ョンユニット１６及び排気管３１，３２を鉛直線７５側
に配置することで、これらの部品の重量が鉛直線７５側
に集中し、自動二輪車１０（図１参照）の重心を鉛直線
７５寄りに配置することができる。By arranging the fuel pump 36, the rear cushion unit 16, and the exhaust pipes 31 and 32 on the vertical line 75 side in this way, the weight of these parts is concentrated on the vertical line 75 side, and the motorcycle 10 ( The center of gravity (see FIG. 1) can be arranged near the vertical line 75.
【００２２】図８は本発明に係る自動二輪車の燃料タン
クの下方の配置を説明する斜視図であり、車体後方より
やや右側にずれた位置から見た図である。排気管３１
は、Ｖ型エンジンの後側２気筒のうち左側の気筒から後
方斜め右方へ延び、更に、スイングアーム１５の右方で
ほぼ真下に延びる。また、排気管３２は、Ｖ型エンジン
の後側２気筒のうち右側の気筒から後方へ延び、更に、
スイングアーム１５の右方でほぼ真下に延びる。FIG. 8 is a perspective view for explaining the arrangement below the fuel tank of the motorcycle according to the present invention, as seen from a position slightly shifted to the right from the rear of the vehicle body. Exhaust pipe 31
Extends rearward and diagonally rightward from the left cylinder of the rear two cylinders of the V-type engine, and further extends substantially right below the swing arm 15. Further, the exhaust pipe 32 extends rearward from the right cylinder of the two rear cylinders of the V-type engine, and further,
It extends substantially right below the swing arm 15.
【００２３】図９は本発明に係る自動二輪車の燃料タン
クの下方の配置を説明する背面図であり、燃料タンク３
５の左側下部からポンプ収納部６３を突出させ、燃料タ
ンク３５の右側下方に排気管３１，３２を配置し、これ
らのポンプ収納部６３と排気管３１，３２との間にリヤ
クッションユニット１６の上端部１６ａを配置したこと
を示す。FIG. 9 is a rear view for explaining the arrangement below the fuel tank of the motorcycle according to the present invention.
5, the pump housing portion 63 is projected from the lower left portion, and the exhaust pipes 31, 32 are arranged on the lower right side of the fuel tank 35. The rear cushion unit 16 is provided between the pump housing portion 63 and the exhaust pipes 31, 32. It shows that the upper end portion 16a is arranged.
【００２４】図１０は本発明に係る自動二輪車の作用を
説明する作用図であり、スイングアーム１５が矢印の向
きにスイングすると、これに伴ってリヤクッションユニ
ット１６が縮み、その上端部１６ａが燃料タンク３５の
底面に接近したことを示す。図ではリヤクッションユニ
ット１６が最も縮んだ状態にある。燃料タンク３５の最
も下部であるポンプ収納部６３とリヤクッションユニッ
ト１６の上端部１６ａとは、紙面の表裏方向に離れてい
るために、この状態では干渉しない。FIG. 10 is an operation diagram for explaining the operation of the motorcycle according to the present invention. When the swing arm 15 swings in the direction of the arrow, the rear cushion unit 16 contracts accordingly, and the upper end portion 16a of the rear cushion unit 16 becomes the fuel. This indicates that the bottom surface of the tank 35 is approached. In the figure, the rear cushion unit 16 is in the most contracted state. Since the pump storage portion 63, which is the lowermost portion of the fuel tank 35, and the upper end portion 16a of the rear cushion unit 16 are separated from each other in the front-back direction of the paper surface, there is no interference in this state.
【００２５】以上の図１及び図９で説明したように、本
発明は第１に、車体のほぼ中央にエンジン１３を配置
し、このエンジン１３の後上方に燃料タンク３５を配置
した自動二輪車１０において、エンジン１３から後方に
延びる排気管３１，３２を燃料タンク３５の下方で且つ
車幅方向の左右の一方（ここでは右）に配置し、燃料タ
ンク３５のポンプ収納部６３を燃料タンク３５の下部で
且つ車幅方向の左右の他方（ここでは左）に設けたこと
を特徴とする。As described with reference to FIGS. 1 and 9, the first aspect of the present invention is a motorcycle 10 in which an engine 13 is arranged substantially in the center of a vehicle body and a fuel tank 35 is arranged above and behind the engine 13. In the above, the exhaust pipes 31 and 32 extending rearward from the engine 13 are arranged below the fuel tank 35 and on one of the left and right sides in the vehicle width direction (here, right), and the pump storage portion 63 of the fuel tank 35 is arranged in the fuel tank 35. It is characterized in that it is provided at the lower part and on the other of the left and right in the vehicle width direction (here, left).
【００２６】燃料タンク３５をシートカウル３４下に配
置すれば、車体前後中心寄りに、即ち鉛直線７５（図７
参照）寄りに排気管３１，３２及び燃料ポンプ３６、即
ち重量の大きな部品が集中するため、例えば、車体後部
に作用する遠心力の影響を小さくすることができ、自動
二輪車１０の旋回性能を高めることができる。更に、シ
ートカウル３４下の部品によって車体の重心が前方に寄
るために、前輪４２の接地力が増し、旋回時の自動二輪
車１０の安定性を高めることができる。If the fuel tank 35 is arranged under the seat cowl 34, it is located closer to the front and rear center of the vehicle body, that is, the vertical line 75 (see FIG. 7).
Since the exhaust pipes 31 and 32 and the fuel pump 36, that is, heavy parts, are concentrated toward this side, for example, the influence of centrifugal force acting on the rear part of the vehicle body can be reduced, and the turning performance of the motorcycle 10 is improved. be able to. Further, since the center of gravity of the vehicle body is moved forward by the components under the seat cowl 34, the ground contact force of the front wheels 42 is increased, and the stability of the motorcycle 10 at the time of turning can be enhanced.
【００２７】また、燃料タンク３５下のスペースを有効
に利用することができるとともに、各部品が燃料タンク
３５下に集中することで、自動二輪車１０をコンパクト
にすることができる。Further, the space under the fuel tank 35 can be effectively utilized, and the parts can be concentrated under the fuel tank 35, so that the motorcycle 10 can be made compact.
【００２８】本発明は第２に、エンジン１３を取付けた
メインフレーム１２の後部にスイングアーム１５をスイ
ング可能に取付け、このスイングアーム１５の上部に、
後輪１７から車体に伝わる衝撃を緩和するリヤクッショ
ンユニット１６の上端部１６ａを取付け、このリヤクッ
ションユニット１６の上端部１６ａを排気管３１，３２
とポンプ収納部６３との間に配置したことを特徴とする
これにより、シートカウル３４下に燃料タンク３５を配
置した場合の、車体前後中心寄りのシートカウル３４下
へのリヤクッションユニット１６、排気管３１，３２、
燃料ポンプ３６の集中化による自動二輪車１０の旋回性
能、安定性をより一層高めることができる。Secondly, according to the present invention, the swing arm 15 is swingably attached to the rear portion of the main frame 12 to which the engine 13 is attached, and the swing arm 15 is attached to the upper portion of the swing arm 15.
The upper end portion 16a of the rear cushion unit 16 for absorbing the shock transmitted from the rear wheel 17 to the vehicle body is attached, and the upper end portion 16a of the rear cushion unit 16 is attached to the exhaust pipes 31, 32.
It is characterized in that the rear cushion unit 16 is disposed below the seat cowl 34 near the front-rear center of the vehicle body when the fuel tank 35 is arranged below the seat cowl 34. Tubes 31, 32,
By centralizing the fuel pump 36, the turning performance and stability of the motorcycle 10 can be further enhanced.
【００２９】尚、本発明では、排気管と燃料ポンプの収
納部とを燃料タンク下方の左右に配置し、これらの間に
リヤクッションユニットを配置したが、これに限らず、
左右にそれぞれ排気管を配置し、これらの排気管の間に
リアクッションユニットを配置し、更に、一方の排気管
とリヤクッションユニットとの間に燃料ポンプの収納部
を配置してもよい。In the present invention, the exhaust pipe and the storage portion of the fuel pump are arranged on the left and right below the fuel tank and the rear cushion unit is arranged between them, but the invention is not limited to this.
Exhaust pipes may be respectively arranged on the left and right sides, a rear cushion unit may be arranged between these exhaust pipes, and a storage portion of the fuel pump may be arranged between one of the exhaust pipes and the rear cushion unit.
【００３０】[0030]
【発明の効果】本発明は上記構成により次の効果を発揮
する。請求項１の自動二輪車は、車体のほぼ中央にエン
ジンを配置し、エンジンから後方に延びる排気管を燃料
タンクの下方で且つ車幅方向の左右の一方に配置し、燃
料タンク内に設ける燃料ポンプの収納部を燃料タンクの
下部で且つ車幅方向の左右の他方に設けたので、燃料タ
ンクをシート下に配置すれば、車体前後中心寄りに排気
管及び燃料ポンプ、即ち重量の大きな部品が集中するた
め、例えば、車体後部に作用する遠心力の影響を小さく
することができ、車両の旋回性能を高めることができ
る。更に、シート下の部品によって車体の重心が前方に
寄るために、前輪の接地力が増し、旋回時の車両の安定
性を高めることができる。The present invention has the following effects due to the above configuration. The motorcycle according to claim 1, wherein the engine is arranged substantially in the center of the vehicle body, and an exhaust pipe extending rearward from the engine is arranged below the fuel tank and on one of the left and right sides in the vehicle width direction. The fuel pump is provided in the fuel tank. Since the storage part of the fuel tank is provided at the lower part of the fuel tank and on the other left and right in the vehicle width direction, if the fuel tank is arranged under the seat, the exhaust pipe and the fuel pump, that is, the heavy parts are concentrated near the front and rear center of the vehicle. Therefore, for example, the influence of the centrifugal force acting on the rear part of the vehicle body can be reduced, and the turning performance of the vehicle can be improved. Further, since the center of gravity of the vehicle body comes closer to the front due to the parts under the seat, the ground contact force of the front wheels is increased, and the stability of the vehicle at the time of turning can be enhanced.
【００３１】請求項２の自動二輪車は、エンジンを取付
けた車体フレームの後部にスイングアームをスイング可
能に取付け、このスイングアームの上部に、後輪から車
体に伝わる衝撃を緩和するリヤクッションユニットの上
端を取付け、このリヤクッションユニットの上端を排気
管と燃料ポンプの収納部との間に配置したので、例え
ば、シート下に燃料タンクを配置した場合の、シート下
への部品の集中化による車両の旋回性能、安定性をより
一層高めることができる。According to another aspect of the motorcycle of the present invention, a swing arm is swingably attached to a rear portion of a vehicle body frame to which an engine is attached, and an upper end of a rear cushion unit for absorbing a shock transmitted from the rear wheel to the vehicle body is provided on an upper portion of the swing arm. Since the upper end of this rear cushion unit is arranged between the exhaust pipe and the storage part of the fuel pump, for example, when a fuel tank is arranged under the seat, the parts of the vehicle are concentrated under the seat. The turning performance and stability can be further enhanced.
【図１】本発明に係る自動二輪車の側面図FIG. 1 is a side view of a motorcycle according to the present invention.
【図２】本発明に係る自動二輪車の要部側面図FIG. 2 is a side view of a main part of the motorcycle according to the present invention.
【図３】本発明に係る自動二輪車の燃料タンクの第１斜
視図（一部断面図）FIG. 3 is a first perspective view (partially sectional view) of a fuel tank of a motorcycle according to the present invention.
【図４】本発明に係る自動二輪車の燃料タンクの第２斜
視図FIG. 4 is a second perspective view of the fuel tank of the motorcycle according to the present invention.
【図５】図２の５−５線断面図5 is a sectional view taken along line 5-5 of FIG.
【図６】図２の６−６線断面図6 is a sectional view taken along line 6-6 of FIG.
【図７】本発明に係る自動二輪車の燃料タンクの下方の
配置を説明する側面図FIG. 7 is a side view illustrating the arrangement below the fuel tank of the motorcycle according to the present invention.
【図８】本発明に係る自動二輪車の燃料タンクの下方の
配置を説明する斜視図FIG. 8 is a perspective view illustrating an arrangement below a fuel tank of the motorcycle according to the present invention.
【図９】本発明に係る自動二輪車の燃料タンクの下方の
配置を説明する背面図FIG. 9 is a rear view for explaining the arrangement below the fuel tank of the motorcycle according to the present invention.
【図１０】本発明に係る自動二輪車の作用を説明する作
用図FIG. 10 is an operation diagram for explaining the operation of the motorcycle according to the present invention.
１０…自動二輪車、１２…車体フレーム（メインフレー
ム）、１３…エンジン、１５…スイングアーム、１６…
リヤクッションユニット、１６ａ…リヤクッションユニ
ットの上端部、１７…後輪、３１，３２…排気管、３５
…燃料タンク、３６…燃料ポンプ、６３…収納部（ポン
プ収納部）。10 ... Motorcycle, 12 ... Body frame (main frame), 13 ... Engine, 15 ... Swing arm, 16 ...
Rear cushion unit, 16a ... Upper end of rear cushion unit, 17 ... Rear wheels, 31, 32 ... Exhaust pipe, 35
... Fuel tank, 36 ... Fuel pump, 63 ... Storage section (pump storage section).
Claims (2)
のエンジンの後上方に燃料タンクを配置した自動二輪車
において、 前記エンジンから後方に延びる排気管を燃料タンクの下
方で且つ車幅方向の左右の一方に配置し、前記燃料タン
ク内に設ける燃料ポンプの収納部を燃料タンクの下部で
且つ車幅方向の左右の他方に設けたことを特徴とする自
動二輪車。1. A motorcycle in which an engine is disposed substantially in the center of a vehicle body, and a fuel tank is disposed above and behind the engine, and an exhaust pipe extending rearward from the engine is disposed below the fuel tank and on the left and right in the vehicle width direction. A motorcycle, characterized in that a storage portion for a fuel pump, which is disposed on one side and is provided in the fuel tank, is provided on the lower side of the fuel tank and on the other side on the left and right in the vehicle width direction.
後部にスイングアームをスイング可能に取付け、このス
イングアームの上部に、後輪から車体に伝わる衝撃を緩
和するリヤクッションユニットの上端を取付け、このリ
ヤクッションユニットの上端を前記排気管と前記燃料ポ
ンプの収納部との間に配置したことを特徴とする請求項
１記載の自動二輪車。2. A swing arm is swingably attached to a rear portion of a vehicle body frame to which the engine is attached, and an upper end of a rear cushion unit for absorbing a shock transmitted from a rear wheel to a vehicle body is attached to an upper portion of the swing arm. The motorcycle according to claim 1, wherein the upper end of the cushion unit is disposed between the exhaust pipe and the storage portion of the fuel pump.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001234276A JP4546003B2 (en) | 2001-08-01 | 2001-08-01 | Motorcycle |
| IT2002TO000516A ITTO20020516A1 (en) | 2001-08-01 | 2002-06-14 | MOTORCYCLE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001234276A JP4546003B2 (en) | 2001-08-01 | 2001-08-01 | Motorcycle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003040175A true JP2003040175A (en) | 2003-02-13 |
| JP4546003B2 JP4546003B2 (en) | 2010-09-15 |
Family
ID=19065912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001234276A Expired - Fee Related JP4546003B2 (en) | 2001-08-01 | 2001-08-01 | Motorcycle |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4546003B2 (en) |
| IT (1) | ITTO20020516A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1923304A3 (en) * | 2006-11-15 | 2008-06-18 | Yamaha Hatsudoki Kabushiki Kaisha | Vehicle |
| EP2048070A1 (en) * | 2007-10-10 | 2009-04-15 | Yamaha Hatsudoki Kabushiki Kaisha | Straddle-type vehicle |
| US7665770B2 (en) * | 2005-06-01 | 2010-02-23 | Yamaha Hatsudoki Kabushiki Kaisha | All terrain vehicle |
| JP2010058748A (en) * | 2008-09-05 | 2010-03-18 | Yamaha Motor Co Ltd | Motorcycle |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5839395U (en) * | 1981-09-09 | 1983-03-15 | スズキ株式会社 | Reaction unit cooling system |
| JPS61104289U (en) * | 1984-12-14 | 1986-07-02 | ||
| JPS61178281A (en) * | 1985-02-02 | 1986-08-09 | 池田 時広 | Shock absorber for rear wheel of cycle car |
| JPS61220985A (en) * | 1985-03-28 | 1986-10-01 | 本田技研工業株式会社 | Fuel feeder for car |
| JPS6233956U (en) * | 1985-08-19 | 1987-02-28 | ||
| JPS62113669A (en) * | 1985-11-12 | 1987-05-25 | 本田技研工業株式会社 | Supporter for exhaust pipe in motorcycle |
| JPH09142358A (en) * | 1995-11-22 | 1997-06-03 | Yamaha Motor Co Ltd | Rear suspension for motorcycle |
| JP2000072074A (en) * | 1998-08-26 | 2000-03-07 | Honda Motor Co Ltd | Fuel tank for motor-cycle |
-
2001
- 2001-08-01 JP JP2001234276A patent/JP4546003B2/en not_active Expired - Fee Related
-
2002
- 2002-06-14 IT IT2002TO000516A patent/ITTO20020516A1/en unknown
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5839395U (en) * | 1981-09-09 | 1983-03-15 | スズキ株式会社 | Reaction unit cooling system |
| JPS61104289U (en) * | 1984-12-14 | 1986-07-02 | ||
| JPS61178281A (en) * | 1985-02-02 | 1986-08-09 | 池田 時広 | Shock absorber for rear wheel of cycle car |
| JPS61220985A (en) * | 1985-03-28 | 1986-10-01 | 本田技研工業株式会社 | Fuel feeder for car |
| JPS6233956U (en) * | 1985-08-19 | 1987-02-28 | ||
| JPS62113669A (en) * | 1985-11-12 | 1987-05-25 | 本田技研工業株式会社 | Supporter for exhaust pipe in motorcycle |
| JPH09142358A (en) * | 1995-11-22 | 1997-06-03 | Yamaha Motor Co Ltd | Rear suspension for motorcycle |
| JP2000072074A (en) * | 1998-08-26 | 2000-03-07 | Honda Motor Co Ltd | Fuel tank for motor-cycle |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7665770B2 (en) * | 2005-06-01 | 2010-02-23 | Yamaha Hatsudoki Kabushiki Kaisha | All terrain vehicle |
| EP1923304A3 (en) * | 2006-11-15 | 2008-06-18 | Yamaha Hatsudoki Kabushiki Kaisha | Vehicle |
| US8061468B2 (en) | 2006-11-15 | 2011-11-22 | Yamaha Hatsudoki Kabushiki Kaisha | Vehicle |
| EP2048070A1 (en) * | 2007-10-10 | 2009-04-15 | Yamaha Hatsudoki Kabushiki Kaisha | Straddle-type vehicle |
| JP2010058748A (en) * | 2008-09-05 | 2010-03-18 | Yamaha Motor Co Ltd | Motorcycle |
Also Published As
| Publication number | Publication date |
|---|---|
| ITTO20020516A0 (en) | 2002-06-14 |
| ITTO20020516A1 (en) | 2003-02-03 |
| JP4546003B2 (en) | 2010-09-15 |
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