JP2003072640A - Saddle type vehicle - Google Patents

Saddle type vehicle

Info

Publication number
JP2003072640A
JP2003072640A JP2002176263A JP2002176263A JP2003072640A JP 2003072640 A JP2003072640 A JP 2003072640A JP 2002176263 A JP2002176263 A JP 2002176263A JP 2002176263 A JP2002176263 A JP 2002176263A JP 2003072640 A JP2003072640 A JP 2003072640A
Authority
JP
Japan
Prior art keywords
fuel tank
engine
outside air
air cleaner
body frame
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
Application number
JP2002176263A
Other languages
Japanese (ja)
Other versions
JP3689389B2 (en
Inventor
Futoshi Miyagawa
太 宮川
Masahiro Kawamata
雅博 川又
Akihito Kobayashi
昭仁 小林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honda Motor Co Ltd
Original Assignee
Honda Motor Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Priority to JP2002176263A priority Critical patent/JP3689389B2/en
Publication of JP2003072640A publication Critical patent/JP2003072640A/en
Application granted granted Critical
Publication of JP3689389B2 publication Critical patent/JP3689389B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To prevent invasion of mud or water splashed from a front wheel into an outside air intake tube to the utmost in a saddle type vehicle having an engine, an air cleaner disposed on the back of the engine to be continuous with it, and a fuel tank positioned above the engine, mounted at a middle part of a car body frame having the front wheel suspended at a front part and a rear wheel suspended at a rear part, in which the outside air intake tube is extended from the air cleaner toward the fuel tank. SOLUTION: In a rear wall of the fuel tank 12, a containing recess 43 is provided to be recessed inward facing rearward, and a tip opening part 40a of the outside air inlet tube 40 is disposed in the containing recess 43.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は,前部に前輪が懸架
されるとともに後部に後輪が懸架される車体フレームの
中間部に,エンジンと,該エンジンに連なってエンジン
の後方に配置されるエアクリーナと,前記エンジンの上
方に位置する燃料タンクとが搭載され,外気導入管がエ
アクリーナから燃料タンク側に延設される鞍乗型車両に
関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an engine and a rear part of the engine connected to the engine at an intermediate portion of a body frame in which a front wheel is suspended at a front portion and a rear wheel is suspended at a rear portion. The present invention relates to a straddle-type vehicle in which an air cleaner and a fuel tank located above the engine are mounted, and an outside air introduction pipe extends from the air cleaner to the fuel tank.

【0002】[0002]

【従来の技術】従来,かかる鞍乗型車両は,たとえば実
開昭64−27464号公報および特開昭62−214
222号公報等により既に知られている。
2. Description of the Related Art Conventionally, such a straddle-type vehicle is disclosed in, for example, Japanese Utility Model Laid-Open Publication No.
No. 222 has already known.

【0003】[0003]

【発明が解決しようとする課題】上記実開昭64−27
464号公報で開示されたものでは,外気導入管が燃料
タンクの中央部を通るフレーム内に連結され,該外気導
入管の先端開口部が燃料タンクの前部に対応する位置で
前方に開口されている。しかるに,このような構成では
燃料タンクの容量が犠牲となるだけでなく,外気導入管
の長さも長くなり,車体フレームの構造も複雑となる。
Problems to be Solved by the Invention
In the device disclosed in Japanese Patent No. 464, an outside air introduction pipe is connected to a frame passing through the center of the fuel tank, and a front end opening of the outside air introduction pipe is opened forward at a position corresponding to a front part of the fuel tank. ing. However, such a configuration not only sacrifices the capacity of the fuel tank, but also increases the length of the outside air introduction pipe and complicates the structure of the body frame.

【0004】そこで,特開昭62−214222号公報
では,燃料タンクの底板に内方に窪んだ凹所が設けら
れ,エアクリーナから前方斜め上方に延設された外気導
入管の先端開口部が該凹所内に突入されている。ところ
が,このような構成では,燃料タンクの前方に在る前輪
から燃料タンクの底板側に向けて撥ね上げられた泥や水
が,外気導入管の先端開口部に侵入するおそれがあり,
それを防止するためには複雑な機構等を装備する必要が
あるという欠点がある。
In Japanese Patent Application Laid-Open No. Sho 62-214222, an inwardly recessed recess is provided in the bottom plate of the fuel tank, and the opening of the front end of an outside air introduction pipe extending obliquely upward and forward from the air cleaner is formed. It is rushing into the recess. However, in such a configuration, there is a possibility that mud and water splashed from the front wheel located in front of the fuel tank toward the bottom plate of the fuel tank may enter the opening of the tip of the outside air introduction pipe.
In order to prevent this, there is a disadvantage that it is necessary to equip a complicated mechanism or the like.

【0005】本発明は,かかる事情に鑑みてなされたも
のであり,前輪から撥ね上げられた泥や水等が侵入する
ことを極力防止するようにして外気導入管が配置された
鞍乗型車両を提供することを目的とする。
[0005] The present invention has been made in view of such circumstances, and a straddle-type vehicle in which an outside air introduction pipe is disposed so as to minimize entry of mud, water, and the like splashed from the front wheels. The purpose is to provide.

【0006】[0006]

【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記載の発明は,前部に前輪が懸架されると
ともに後部に後輪が懸架される車体フレームの中間部
に,エンジンと,該エンジンに連なってエンジンの後方
に配置されるエアクリーナと,前記エンジンの上方に位
置する燃料タンクとが搭載され,外気導入管がエアクリ
ーナから燃料タンク側に延設される鞍乗型車両におい
て,燃料タンクの後壁には,内方側に窪んで後方に臨む
収納凹所が設けられ,外気導入管の先端開口部が該収納
凹所に配置されることを特徴とする。
In order to achieve the above object, an invention according to claim 1 is characterized in that an engine is provided at an intermediate portion of a body frame in which a front wheel is suspended at a front portion and a rear wheel is suspended at a rear portion. And an air cleaner connected to the engine and disposed behind the engine, and a fuel tank located above the engine, wherein the outside air introduction pipe extends from the air cleaner to the fuel tank side. A storage recess is provided on the rear wall of the fuel tank so as to be depressed inward and facing rearward, and a front end opening of an outside air introduction pipe is disposed in the storage recess.

【0007】また請求項2記載の発明によれば,上記請
求項1記載の発明の構成に加えて,収納凹所の下方を覆
って燃料タンクおよびエンジン間に配置される遮蔽板
が,車体フレームに固定される。
According to a second aspect of the present invention, in addition to the configuration of the first aspect of the present invention, a shielding plate that is disposed between the fuel tank and the engine so as to cover a lower portion of the storage recess is provided. Fixed to.

【0008】[0008]

【発明の実施の形態】本発明の実施の形態を,添付図面
に例示した本発明の実施例に基づいて以下に具体的に説
明する。
DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be specifically described below based on embodiments of the present invention illustrated in the accompanying drawings.

【0009】添付図面において,図1ないし図7は本発
明の一実施例を示すものであり,図1は鞍乗型車両の側
面図,図2は図1の燃料タンクカバーを外した状態での
要部拡大平面図,図3は図2の3−3線断面図,図4は
図2の4−4線拡大断面図,図5は図2の5−5線に沿
う断面図,図6は燃料タンクの平面図,図7は図6の7
−7線拡大断面図である。
1 to 7 show an embodiment of the present invention. FIG. 1 is a side view of a straddle-type vehicle, and FIG. 2 is a state in which a fuel tank cover of FIG. 1 is removed. 3 is a sectional view taken along line 3-3 of FIG. 2, FIG. 4 is an enlarged sectional view taken along line 4-4 of FIG. 2, and FIG. 5 is a sectional view taken along line 5-5 of FIG. 6 is a plan view of the fuel tank, and FIG.
FIG. 7 is an enlarged sectional view taken along line -7.

【0010】先ず図1において,この鞍乗型車両は荒地
走行用四輪バギー車であり,その車体フレームBの前部
には左右一対の前輪WF が,また車体フレームBの後部
には左右一対の後輪WR が縣架され,これらの車輪
F ,WR にはバルーン型低圧タイヤがそれぞれ装着さ
れる。車体フレームBの上部には,その前方から順に操
向ハンドル11,燃料タンク12および跨座式運転シー
ト13が配設される。
[0010] First, in FIG. 1, the straddle-type vehicle is a four-wheeled buggy for rough terrain running, the front wheel W F of the pair is the front of the body frame B is also independent of the rear portion of the vehicle body frame B a pair of rear wheels W R is縣架, these wheels W F, the W R balloon low pressure tire is mounted, respectively. A steering handle 11, a fuel tank 12, and a straddle-type operation seat 13 are arranged in the upper part of the body frame B in this order from the front.

【0011】図2および図3を併せて参照して,車体フ
レームBの下部中央には,左右両側方に突出するように
して左右一対のステップ14L ,14R が運転シート1
3に跨座する運転者の両足を支えるようにして固設さ
れ,左側のステップ14L の近傍にはチェンジペダル1
5が,また右側のステップ14R の近傍にはブレーキペ
ダル16が配設される。
Referring to FIGS. 2 and 3, a pair of left and right steps 14 L and 14 R are provided at the center of the lower part of the body frame B so as to protrude to the left and right sides.
Been to fixedly to support the feet of the driver sits astride the 3, change in the vicinity of the left step 14 L pedal 1
5, also the brake pedal 16 is disposed in the vicinity of the right step 14 R.

【0012】車体フレームBの中間部において,燃料タ
ンク12および運転シート13の下方には,エンジンE
と変速機Tとがそのケーシングを共通としてユニット化
されて成るパワーユニットPが搭載されており,該パワ
ーユニットPから前方に延びるドライブシャフト17F
によって左右両前輪WF にパワーユニットPからの駆動
力が伝達され,パワーユニットPから後方に延びるドラ
イブシャフト17R によって左右両後輪WR にもパワー
ユニットPからの駆動力が伝達される。
In the middle of the body frame B, below the fuel tank 12 and the operation seat 13, an engine E
A power unit P, which is formed by unitizing a transmission T and a transmission T with a common casing, is mounted on the drive shaft 17 F extending forward from the power unit P.
Left and right front wheel W F driving force from the power unit P is transmitted, the driving force from the power unit P to the right and left rear wheels W R by the drive shaft 17 R extending from the power unit P to the rear is transmitted by.

【0013】エンジンEの後方において,車体フレーム
Bにはエアクリーナ18が搭載されるものであり,この
エアクリーナ18は気化器19を介してエンジンEにお
けるシリンダヘッド20の後面に連結され,該シリンダ
ヘッド20の前面に連結された排気管21はエンジンE
の左側方に回り込んで後方に延設される。
At the rear of the engine E, an air cleaner 18 is mounted on the body frame B. The air cleaner 18 is connected to a rear surface of a cylinder head 20 of the engine E via a carburetor 19, and is connected to the cylinder head 20. The exhaust pipe 21 connected to the front of the engine E
It extends around the left side of and extends rearward.

【0014】ところで,車体フレームBはエンジンEの
両側方で前後に平行に延びる左右一対の支持フレーム2
L ,22R を備えるものであり,エンジンEの後方に
配置されるエアクリーナ18の上部両側には両支持フレ
ーム22L ,22R 上に載置されるフランジ部18a,
18aが一体に設けられる。而して図4で示すように,
各フランジ部18a,18aにそれぞれ挿通されるクリ
ップ23,23が,支持フレーム22L ,22R にそれ
ぞれ設けられた係合孔24…に弾発係合されることによ
り,エアクリーナ18が両支持フレーム22L ,22R
上に固定的に支持される。
The body frame B is composed of a pair of left and right support frames 2 extending in the front-rear direction on both sides of the engine E.
2 L , 22 R , and flange portions 18 a, which are mounted on both support frames 22 L , 22 R, on both upper sides of the air cleaner 18 disposed behind the engine E.
18a are provided integrally. Thus, as shown in FIG.
Each flange portion 18a, the clip is inserted respectively into 18a 23, 23 is, by respectively the engaged engaging holes 24 ... resiliently engaging provided on the support frame 22 L, 22 R, an air cleaner 18 is both supporting frame 22 L , 22 R
Above is fixedly supported.

【0015】図5および図6を併せて参照して,燃料タ
ンク12は,合成樹脂から成る下部半体12aおよび上
部半体12bが相互に結合されて成るものであり,エン
ジンEの上方位置,すなわちエアクリーナ18の前方斜
め上方位置で車体フレームBに固定的に取付けられる。
而して燃料タンク12の前部両側には前方に突出する突
部26,26が設けられる。
Referring to FIGS. 5 and 6, the fuel tank 12 is composed of a lower half 12a and an upper half 12b made of synthetic resin joined to each other. That is, the air cleaner 18 is fixedly attached to the vehicle body frame B at an obliquely upper position in front of the air cleaner 18.
Protrusions 26, 26 projecting forward are provided on both front sides of the fuel tank 12.

【0016】燃料タンク12における上部半体12bの
中央部上面には,そのブロー成形時に取付け部材27が
一体に結合される。この取付け部材27は,合成樹脂の
インジェクション成形によって形成されるものであり,
燃料タンク12内に通じて上方に延びる給油管28が取
付け部材27に一体に設けられ,この給油管28の外周
には雄ねじ29が設けられる。而して取付け部材27が
燃料タンク12とは独立してインジェクション成形され
ることにより,前記雄ねじ29のねじ精度を向上するこ
とができ,給油管28は,雄ねじ29に螺合される給油
キャップ30(図5参照)で閉塞される。
A mounting member 27 is integrally connected to the upper surface of the central portion of the upper half body 12b of the fuel tank 12 at the time of blow molding. The mounting member 27 is formed by injection molding of a synthetic resin.
An oil supply pipe 28 extending upward through the fuel tank 12 is provided integrally with the mounting member 27, and a male screw 29 is provided on the outer periphery of the oil supply pipe 28. Since the mounting member 27 is injection-molded independently of the fuel tank 12, the screw accuracy of the male screw 29 can be improved. (See FIG. 5).

【0017】また取付け部材27には,上部半体12b
に設けられる孔31に連なる取付け孔32が設けられる
ものであり,該取付け孔32を相互間に挟む2個所で取
付け部材27にはナット33…がそれぞれ一体に埋設さ
れる。取付け孔32および孔31には燃料残量計34が
挿通されるものであり,この燃料残量計34の上端の表
示部34aがシール部材35を介して取付け孔32の上
端周縁に係合される。而して表示部34aに前記シール
部材35を介して係合するカバー36が取付け部材27
に当接され,該カバー36に挿通される一対のねじ部材
37,37が前記各ナット33…に螺合され,これによ
り燃料残量計34が燃料タンク12に強固に締結される
ことになる。
The mounting member 27 includes an upper half 12b.
The mounting member 27 is integrally embedded with the mounting member 27 at two places sandwiching the mounting hole 32 therebetween. A fuel gauge 34 is inserted into the mounting holes 32 and 31, and a display 34 a at the upper end of the fuel gauge 34 is engaged with the upper end periphery of the mounting hole 32 via a seal member 35. You. The cover 36 which engages with the display portion 34a via the seal member 35 is attached to the mounting member 27.
, And a pair of screw members 37, 37 inserted into the cover 36 are screwed into the nuts 33, whereby the fuel gauge 34 is firmly fastened to the fuel tank 12. .

【0018】なお取付け部材27において給油管28の
周囲には,燃料タンク12における上部半体12bとの
ブロー成形時の一体化にあたってガスを抜くための複数
のガス抜き孔38…が予め設けられており,それらのガ
ス抜き孔38…にブロー成形時に合成樹脂が侵入するこ
とにより,取付け部材27の上部半体12bへの結合が
より強固となる。
In the mounting member 27, a plurality of gas vent holes 38 are provided in advance around the oil supply pipe 28 for venting gas when the fuel tank 12 is integrated with the upper half body 12b during blow molding. Since the synthetic resin enters the gas vent holes 38 at the time of blow molding, the attachment of the mounting member 27 to the upper half body 12b becomes stronger.

【0019】ところで,燃料タンク12はエアクリーナ
18の前方斜め上方に位置するものであるが,エアクリ
ーナ18に連なる合成樹脂製の外気導入管40は,比較
的深い水の中でもエアクリーナ18への外気の導入を可
能とするために,エアクリーナ18から燃料タンク12
側に向けて前上がりに延設される。而してエアクリーナ
18の中間下部には,半円状の弾性嵌合部41が設けら
れており,車体フレームBに設けられた支持筒42に該
弾性嵌合部41が嵌合されることにより外気導入管40
が支持される。
The fuel tank 12 is located obliquely above and in front of the air cleaner 18. The synthetic resin outside air introduction pipe 40 connected to the air cleaner 18 introduces outside air into the air cleaner 18 even in relatively deep water. In order to make the fuel tank 12
It is extended upward to the side. A semicircular elastic fitting portion 41 is provided in the middle lower portion of the air cleaner 18, and the elastic fitting portion 41 is fitted to a support cylinder 42 provided on the vehicle body frame B. Outside air inlet pipe 40
Is supported.

【0020】一方,燃料タンク12における後壁の左隅
角部には,内方側に窪んで後方に臨む収納凹所43が設
けられており,外気導入管40の先端開口部40aは,
該収納凹所43内に配置され,前方側に向けて開口せし
められる。
On the other hand, at the left corner of the rear wall of the fuel tank 12, there is provided a storage recess 43 which is recessed inward and faces rearward.
It is arranged in the storage recess 43 and is opened toward the front side.

【0021】パワーユニットPにおけるエンジンEと,
該エンジンEの上方に位置する燃料タンク12との間に
は,耐熱性を有する合成樹脂から成る遮蔽板44が配置
されるものであり,収納凹所43の下方は該遮蔽板44
で覆われる。而して該遮蔽板44は,車体フレームBに
おける両支持フレーム22L ,22R に固定される。
The engine E in the power unit P,
A shielding plate 44 made of a synthetic resin having heat resistance is disposed between the fuel tank 12 and the fuel tank 12 located above the engine E.
Covered with. Thus, the shielding plate 44 is fixed to both support frames 22 L and 22 R in the vehicle body frame B.

【0022】車体フレームBには燃料タンク12を覆う
燃料タンクカバー45が取付けられる。この燃料タンク
カバー45は,燃料タンク12の左側面,エンジンEの
上部およびエアクリーナ18の左側を覆う左カバー部4
L と,燃料タンク12の右側面を覆う右カバー部45
R と,燃料タンク12の上面を覆う上カバー45T とを
備えるものであり,燃料タンク12の給油管28は上カ
バー部45T を貫通して上方に突出される。
A fuel tank cover 45 that covers the fuel tank 12 is attached to the body frame B. The fuel tank cover 45 includes a left cover portion 4 that covers the left side surface of the fuel tank 12, the upper portion of the engine E, and the left side of the air cleaner 18.
5 L and a right cover part 45 covering the right side surface of the fuel tank 12
And R, are those comprising a cover 45 T on covering the upper surface of the fuel tank 12, the oil supply pipe 28 of the fuel tank 12 is projected upward through the upper cover portion 45 T.

【0023】燃料タンクカバー45における左および右
カバー部45L ,45R と,燃料タンク12の左右両側
面との間には外気通路47L ,47R がそれぞれ形成さ
れるものであり,左および右カバー部45L ,45R
前部には,各外気通路47L,47R に通じる外気導入
口46L ,46R がそれぞれ設けられる。而して車両走
行時には,左側の外気導入口46L から導入された外気
が外気通路47L を経て外気導入管40の先端開口部4
0aに導かれ,また右側の外気導入口46R から導入さ
れた外気が外気通路47R を経て気化器19およびエア
クリーナ18等を冷却することになる。
Outside air passages 47 L and 47 R are formed between the left and right cover portions 45 L and 45 R of the fuel tank cover 45 and the left and right side surfaces of the fuel tank 12, respectively. the front portion of the right cover portion 45 L, 45 R, the outside air passage 47 L, outside air inlet 46 leading to the 47 R L, 46 R are respectively provided. During Thus to vehicle travel, the front end opening portion 4 of the outside air introducing tube 40 is introduced from the outside air introduction port 46 L on the left side outside air through the outside air passage 47 L
Led to 0a, also so that the outside air introduced from the right side of the outside air introduction port 46 R cools the carburetor 19 and the air cleaner 18 and the like through the outside air passage 47 R.

【0024】また左および右カバー部45L ,45R
前端部には,ゴム板48,48が取付けられており,燃
料タンク12の前部の突部26,26がそれらのゴム板
48,48を貫通して前方に突出される。而して両ゴム
板48,48は,燃料タンクカバー45の前部と燃料タ
ンク12との間に生じる間隙を塞ぐことになり,両前輪
F から跳ね上げられる泥や水が前記間隙から燃料タン
ク12の後方まで達することを防止する。
[0024] The front end portion of the left and right cover portions 45 L, 45 R, the rubber plate 48 is mounted, the front portion of the projection 26, 26 thereof a rubber plate 48 of the fuel tank 12, 48 and project forward. Thus to both the rubber plate 48, 48 will be close the gap that occurs between the front and the fuel tank 12 of the fuel tank cover 45, the fuel from the raised is mud and water splashed the gap from the front wheels W F It prevents reaching to the rear of the tank 12.

【0025】次にこの実施例の作用について説明する
と,エンジンEの後方に位置するエアクリーナ18に連
なる外気導入管40は,エンジンEの上方に在る燃料タ
ンク12側に向けて延設され,燃料タンク12の後壁に
設けられて後方に臨む収納凹所43に外気導入管40の
先端開口部40aが配置されるので,外気導入管40の
先端開口部40aと両前輪WF との間に燃料タンク12
が介在することになり,両前輪WF から燃料タンク12
の底板側に向けて泥や水が撥ね上げられても,撥ね上げ
られた泥や水が外気導入管40の先端開口部40aに侵
入することが極力防止される。しかも燃料タンク12の
底板に外気導入管40の先端開口部40aを突入させる
凹所が設けられた従来技術(特開昭62−214222
号公報)に比べると,燃料タンク12の底板形状を単純
化することが可能となり,特に燃料タンク12の後壁に
おける左隅角部に収納凹所43が設けられることにより
燃料タンク12の形状をより単純化することが可能であ
る。
Next, the operation of this embodiment will be described. The outside air introduction pipe 40 connected to the air cleaner 18 located behind the engine E is extended toward the fuel tank 12 above the engine E, and the tip opening 40a of the outside air introducing pipe 40 is disposed in the housing recess 43 which faces rearward provided the rear wall of the tank 12, between the distal end opening portion 40a of the outside air introducing tube 40 and the front wheels W F Fuel tank 12
There will be interposed, the fuel tank 12 from both the front wheel W F
Even if the mud or water is repelled toward the bottom plate side, the repelled mud or water is prevented as much as possible from entering the tip opening 40a of the outside air introduction pipe 40. In addition, a conventional technology is disclosed in which a recess is provided in the bottom plate of the fuel tank 12 so that the distal end opening 40a of the outside air introduction pipe 40 can be inserted (Japanese Patent Laid-Open No. Sho 62-214222).
, The shape of the bottom plate of the fuel tank 12 can be simplified, and in particular, the storage recess 43 is provided in the left corner of the rear wall of the fuel tank 12 so that the shape of the fuel tank 12 can be further improved. It is possible to simplify.

【0026】また燃料タンク12およびエンジンE間に
は遮蔽板44が介在せしめられ,収納凹所43の下方は
該遮蔽板44で覆われるので,前輪WF から撥ね上げら
れる泥や水が燃料タンク12まで達することを該遮蔽板
44で遮ることによってより確実に防止することがで
き,外気導入管40の先端開口部40aへの泥や水の侵
入をより確実に防止することが可能となる。またエンジ
ンEの放熱が外気導入管40に導入される外気に及ぼす
影響を遮蔽板44で極力排除することができ,エンジン
Eに導入される外気の温度上昇を防止し,エンジンEの
出力変動を抑えることができる。
[0026] Between the fuel tank 12 and the engine E is the shielding plate 44 is caused to intervention, since lower housing concavity 43 is covered with the shielding plate 44, mud and water fuel tank to be raised splashed from the front wheel W F It is possible to more reliably prevent the reaching to 12 by the shielding plate 44, and it is possible to more reliably prevent the intrusion of mud or water into the tip opening 40a of the outside air introduction pipe 40. Further, the influence of the heat radiation of the engine E on the outside air introduced into the outside air introduction pipe 40 can be eliminated as much as possible by the shielding plate 44, so that the temperature rise of the outside air introduced into the engine E can be prevented and the output fluctuation of the engine E can be reduced. Can be suppressed.

【0027】以上,本発明の実施例を詳述したが,本発
明は上記実施例に限定されるものではなく,特許請求の
範囲に記載された本発明を逸脱することなく種々の設計
変更を行なうことが可能である。
Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above embodiments, and various design changes can be made without departing from the present invention described in the appended claims. It is possible to do.

【0028】たとえば,収納凹所43は,燃料タンク1
2の後壁の左隅角部に限定されるものではなく,燃料タ
ンク12の後壁のいずれの位置に設けられていてもよ
い。
For example, the storage recess 43 is provided in the fuel tank 1.
It is not limited to the left corner of the rear wall of the fuel tank 2 and may be provided at any position on the rear wall of the fuel tank 12.

【0029】[0029]

【発明の効果】以上のように請求項1記載の発明によれ
ば,燃料タンクの後壁には,内方側に窪んで後方に臨む
収納凹所が設けられ,外気導入管の先端開口部が該収納
凹所に配置されるので,燃料タンクの形状単純化を図り
つつ,前輪から撥ね上げられた泥や水が外気導入管の先
端開口部に侵入することを極力防止することが可能とな
る。
As described above, according to the first aspect of the present invention, the rear wall of the fuel tank is provided with a storage recess that is recessed inward and faces rearward, and the front opening of the outside air introduction pipe is provided. Is arranged in the storage recess, so that the shape of the fuel tank can be simplified and the mud and water splashed from the front wheels can be prevented from entering the opening at the tip of the outside air introduction pipe as much as possible. Become.

【0030】また請求項2記載の発明によれば,上記請
求項1記載の発明の構成に加えて,収納凹所の下方を覆
って燃料タンクおよびエンジン間に配置される遮蔽板
が,車体フレームに固定されるので,前輪から撥ね上げ
られた泥や水が外気導入管の先端開口部に侵入すること
を防止することができるだけでなく,外気導入管に導入
される外気の温度がエンジンの放熱によって上昇するこ
とを防止することができ,それによりエンジンの出力変
動を抑えることができる。
According to a second aspect of the present invention, in addition to the configuration of the first aspect of the present invention, a shielding plate which is disposed between the fuel tank and the engine so as to cover a lower portion of the storage recess is provided. It is not only possible to prevent the mud and water splashed from the front wheels from entering the opening at the tip of the outside air introduction pipe, but also to prevent the temperature of the outside air introduced into the outside air introduction pipe from radiating the engine heat. As a result, it is possible to prevent the engine from rising, thereby suppressing fluctuations in the engine output.

【図面の簡単な説明】[Brief description of the drawings]

【図1】鞍乗型車両の側面図である。FIG. 1 is a side view of a straddle-type vehicle.

【図2】図1の燃料タンクカバーを外した状態での要部
拡大平面図である。
FIG. 2 is an enlarged plan view of a main part in a state where a fuel tank cover of FIG. 1 is removed.

【図3】図2の3−3線断面図である。FIG. 3 is a sectional view taken along line 3-3 of FIG. 2;

【図4】図2の4−4線拡大断面図である。FIG. 4 is an enlarged sectional view taken along line 4-4 of FIG. 2;

【図5】図2の5−5線に沿う断面図である。FIG. 5 is a sectional view taken along the line 5-5 in FIG. 2;

【図6】燃料タンクの平面図である。FIG. 6 is a plan view of a fuel tank.

【図7】図6の7−7線拡大断面図である。FIG. 7 is an enlarged sectional view taken along line 7-7 of FIG. 6;

【符号の説明】[Explanation of symbols]

12 燃料タンク 18 エアクリーナ 40 外気導入管 40a 外気導入管の先端開口部 43 収納凹所 44 遮蔽板 B 車体フレーム E エンジン WF 前輪 WR 後輪12 fuel tank 18 air cleaner 40 outside air introduction tube 40a outside air-introducing tube distal opening 43 accommodating recess 44 shield B body frame E engine W F front W R rear wheel

─────────────────────────────────────────────────────
────────────────────────────────────────────────── ───

【手続補正書】[Procedure amendment]

【提出日】平成14年7月17日(2002.7.1
7)
[Submission date] July 17, 2002 (2002.7.1)
7)

【手続補正1】[Procedure amendment 1]

【補正対象書類名】明細書[Document name to be amended] Statement

【補正対象項目名】全文[Correction target item name] Full text

【補正方法】変更[Correction method] Change

【補正内容】[Correction contents]

【書類名】 明細書[Document Name] Statement

【発明の名称】 鞍乗型車両[Title of the Invention] Saddle type vehicle

【特許請求の範囲】[Claims]

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は,前部に前輪が懸架
されるとともに後部に後輪が懸架される車体フレームの
中間部に,エンジンと,該エンジンに連なってエンジン
の後方に配置されるエアクリーナと,前記エンジンの上
方に位置する燃料タンクとが搭載され,外気導入管がエ
アクリーナから燃料タンク側に延設される鞍乗型車両に
関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an engine and a rear part of the engine connected to the engine at an intermediate portion of a body frame in which a front wheel is suspended at a front portion and a rear wheel is suspended at a rear portion. The present invention relates to a straddle-type vehicle in which an air cleaner and a fuel tank located above the engine are mounted, and an outside air introduction pipe extends from the air cleaner to the fuel tank.

【0002】[0002]

【従来の技術】従来,かかる鞍乗型車両は,たとえば実
開昭64−27464号公報および特開昭62−214
222号公報等により既に知られている。
2. Description of the Related Art Conventionally, such a straddle-type vehicle is disclosed in, for example, Japanese Utility Model Laid-Open Publication No.
No. 222 has already known.

【0003】[0003]

【発明が解決しようとする課題】上記実開昭64−27
464号公報で開示されたものでは,外気導入管が燃料
タンクの中央部を通るフレーム内に連結され,該外気導
入管の先端開口部が燃料タンクの前部に対応する位置で
前方に開口されている。しかるに,このような構成では
燃料タンクの容量が犠牲となるだけでなく,外気導入管
の長さも長くなり,車体フレームの構造も複雑となる。
Problems to be Solved by the Invention
In the device disclosed in Japanese Patent No. 464, an outside air introduction pipe is connected to a frame passing through the center of the fuel tank, and a front end opening of the outside air introduction pipe is opened forward at a position corresponding to a front part of the fuel tank. ing. However, such a configuration not only sacrifices the capacity of the fuel tank, but also increases the length of the outside air introduction pipe and complicates the structure of the body frame.

【0004】そこで,特開昭62−214222号公報
では,燃料タンクの底板に内方に窪んだ凹所が設けら
れ,エアクリーナから前方斜め上方に延設された外気導
入管の先端開口部が該凹所内に突入されている。ところ
が,このような構成では,燃料タンクの前方に在る前輪
から燃料タンクの底板側に向けて撥ね上げられた泥や水
が,外気導入管の先端開口部に侵入するおそれがあり,
それを防止するためには複雑な機構等を装備する必要が
あるという欠点がある。
In Japanese Patent Application Laid-Open No. Sho 62-214222, an inwardly recessed recess is provided in the bottom plate of the fuel tank, and the opening of the front end of the outside air introduction pipe extending obliquely upward and forward from the air cleaner is formed. It is rushing into the recess. However, in such a configuration, there is a possibility that mud and water splashed from the front wheel located in front of the fuel tank toward the bottom plate of the fuel tank may enter the opening of the tip of the outside air introduction pipe.
In order to prevent this, there is a disadvantage that it is necessary to equip a complicated mechanism or the like.

【0005】本発明は,かかる事情に鑑みてなされたも
のであり,前輪から撥ね上げられた泥や水等が侵入する
ことを極力防止するようにして外気導入管が配置された
鞍乗型車両における燃料タンク装置を提供することを目
的とする。
[0005] The present invention has been made in view of such circumstances, and a straddle-type vehicle in which an outside air introduction pipe is arranged so as to minimize entry of mud, water, and the like splashed from a front wheel. An object of the present invention is to provide a fuel tank device in the above.

【0006】[0006]

【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発明は,前部に前輪が懸架されるととも
に後部に後輪が懸架される車体フレームの中間部に,エ
ンジンと,該エンジンに連なってエンジンの後方に配置
されるエアクリーナと,前記エンジンの上方に位置する
燃料タンクとが搭載され,外気導入管がエアクリーナか
ら燃料タンク側に延設され,前記車体フレームが,前後
に延びる左右一対の支持フレームを備える鞍乗型車両
おける燃料タンク装置において,燃料タンクの後壁に
は,タンク内方側に窪んで後方に臨み外気導入管の先端
開口部を配置した収納凹所が設けられ,その燃料タンク
の前部の左右両側には,前記左右一対の支持フレームの
直上でそれぞれ前方側に突出する左右一対の突部がそれ
ぞれ設けられ,前記燃料タンクは,各々が合成樹脂から
成る下部半体及び上部半体を相互に結合して構成され,
その上部半体はブロー成形されることを特徴とする。
SUMMARY OF THE INVENTION In order to achieve the above object, an invention according to claim 1 is characterized in that an engine and an engine are provided at an intermediate portion of a body frame in which a front wheel is suspended at a front portion and a rear wheel is suspended at a rear portion. An air cleaner disposed in the rear of the engine connected to the engine; and a fuel tank positioned above the engine, an outside air introduction pipe extending from the air cleaner to the fuel tank side , and
Vehicle with a pair of left and right support frames
Definitive in the fuel tank system, on the rear wall of the fuel tank, the rear recessed into the tank inwardly of the extraordinary seen outside air introducing tube tip
A storage recess with an opening is provided and the fuel tank
The left and right sides of the front of the
A pair of right and left protrusions that project forward and directly above
Each of the fuel tanks is made of synthetic resin.
Consisting of a lower half and an upper half
The upper half is blow molded .

【0007】また請求項2の発明によれば,請求項1の
上記特徴に加えて,前記上部半体にそれのブロー成形時
に結合される取付け部材により,給油管が該上部半体に
一体に設けられることを特徴とする。
[0007] According to the invention of claim 2, according to claim 1,
In addition to the above features, when the upper half is blow molded,
The lubrication pipe is connected to the upper half by a mounting member
It is characterized by being provided integrally.

【0008】また請求項3の発明によれば,上記請求項
2の上記特徴に加えて,前記給油管の近くに燃料残量計
が配置されたことを特徴とする。
According to the third aspect of the present invention, the above-mentioned claim is provided.
2. In addition to the above features, the fuel gauge is located near the fuel pipe.
Are arranged.

【0009】また請求項4の発明によれば,上記請求項
3の上記特徴に加えて,前記燃料残量計が,前記上部半
体と該上部半体にそれのブロー成形時に結合される取付
け部材とにそれぞれ設けた孔に挿通され,その取付け部
材には燃料残量計の表示部が,該表示部にシール部材を
介して係合するカバーで固定されることを特徴とする。
According to the fourth aspect of the present invention, the above-mentioned claim is provided.
3. In addition to the features of item 3,
Attachment to the body and the upper half during blow molding thereof
Through the holes provided in the mounting member
The material has a fuel gauge display and a seal on the display.
It is characterized by being fixed by a cover that engages through the cover.

【0010】[0010]

【発明の実施の形態】本発明の実施の形態を,添付図面
に例示した本発明の実施例に基づいて以下に具体的に説
明する。
DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be specifically described below based on embodiments of the present invention illustrated in the accompanying drawings.

【0011】添付図面において,図1ないし図7は本発
明の一実施例を示すものであり,図1は鞍乗型車両の側
面図,図2は図1の燃料タンクカバーを外した状態での
要部拡大平面図,図3は図2の3−3線断面図,図4は
図2の4−4線拡大断面図,図5は図2の5−5線に沿
う断面図,図6は燃料タンクの平面図,図7は図6の7
−7線拡大断面図である。
1 to 7 show an embodiment of the present invention. FIG. 1 is a side view of a straddle-type vehicle, and FIG. 2 is a state in which a fuel tank cover of FIG. 1 is removed. 3 is a sectional view taken along line 3-3 of FIG. 2, FIG. 4 is an enlarged sectional view taken along line 4-4 of FIG. 2, and FIG. 5 is a sectional view taken along line 5-5 of FIG. 6 is a plan view of the fuel tank, and FIG.
FIG. 7 is an enlarged sectional view taken along line -7.

【0012】先ず図1において,この鞍乗型車両は荒地
走行用四輪バギー車であり,その車体フレームBの前部
には左右一対の前輪WF が,また車体フレームBの後部
には左右一対の後輪WR が縣架され,これらの車輪
F ,WR にはバルーン型低圧タイヤがそれぞれ装着さ
れる。車体フレームBの上部には,その前方から順に操
向ハンドル11,燃料タンク12および跨座式運転シー
ト13が配設される。
[0012] First, in FIG. 1, the straddle-type vehicle is a four-wheeled buggy for rough terrain running, the front wheel W F of the pair is the front of the body frame B is also independent of the rear portion of the vehicle body frame B a pair of rear wheels W R is縣架, these wheels W F, the W R balloon low pressure tire is mounted, respectively. A steering handle 11, a fuel tank 12, and a straddle-type operation seat 13 are arranged in the upper part of the body frame B in this order from the front.

【0013】図2および図3を併せて参照して,車体フ
レームBの下部中央には,左右両側方に突出するように
して左右一対のステップ14L ,14R が運転シート1
3に跨座する運転者の両足を支えるようにして固設さ
れ,左側のステップ14L の近傍にはチェンジペダル1
5が,また右側のステップ14R の近傍にはブレーキペ
ダル16が配設される。
2 and 3, a pair of left and right steps 14 L and 14 R are provided at the center of the lower part of the vehicle body frame B so as to protrude to both left and right sides.
Been to fixedly to support the feet of the driver sits astride the 3, change in the vicinity of the left step 14 L pedal 1
5, also the brake pedal 16 is disposed in the vicinity of the right step 14 R.

【0014】車体フレームBの中間部において,燃料タ
ンク12および運転シート13の下方には,エンジンE
と変速機Tとがそのケーシングを共通としてユニット化
されて成るパワーユニットPが搭載されており,該パワ
ーユニットPから前方に延びるドライブシャフト17F
によって左右両前輪WF にパワーユニットPからの駆動
力が伝達され,パワーユニットPから後方に延びるドラ
イブシャフト17R によって左右両後輪WR にもパワー
ユニットPからの駆動力が伝達される。
In the middle of the body frame B, below the fuel tank 12 and the operation seat 13, an engine E
A power unit P, which is formed by unitizing a transmission T and a transmission T with a common casing, is mounted on the drive shaft 17 F extending forward from the power unit P.
Left and right front wheel W F driving force from the power unit P is transmitted, the driving force from the power unit P to the right and left rear wheels W R by the drive shaft 17 R extending from the power unit P to the rear is transmitted by.

【0015】エンジンEの後方において,車体フレーム
Bにはエアクリーナ18が搭載されるものであり,この
エアクリーナ18は気化器19を介してエンジンEにお
けるシリンダヘッド20の後面に連結され,該シリンダ
ヘッド20の前面に連結された排気管21はエンジンE
の左側方に回り込んで後方に延設される。
At the rear of the engine E, an air cleaner 18 is mounted on the vehicle body frame B. The air cleaner 18 is connected to a rear surface of a cylinder head 20 of the engine E via a carburetor 19, and is connected to the cylinder head 20. The exhaust pipe 21 connected to the front of the engine E
It extends around the left side of and extends rearward.

【0016】ところで,車体フレームBはエンジンEの
両側方で前後に平行に延びる左右一対の支持フレーム2
L ,22R を備えるものであり,エンジンEの後方に
配置されるエアクリーナ18の上部両側には両支持フレ
ーム22L ,22R 上に載置されるフランジ部18a,
18aが一体に設けられる。而して図4で示すように,
各フランジ部18a,18aにそれぞれ挿通されるクリ
ップ23,23が,支持フレーム22L ,22R にそれ
ぞれ設けられた係合孔24…に弾発係合されることによ
り,エアクリーナ18が両支持フレーム22L ,22R
上に固定的に支持される。
The body frame B is composed of a pair of left and right support frames 2 extending in parallel to the front and rear on both sides of the engine E.
2 L , 22 R , and flange portions 18 a, which are mounted on both support frames 22 L , 22 R, on both upper sides of the air cleaner 18 disposed behind the engine E.
18a are provided integrally. Thus, as shown in FIG.
Each flange portion 18a, the clip is inserted respectively into 18a 23, 23 is, by respectively the engaged engaging holes 24 ... resiliently engaging provided on the support frame 22 L, 22 R, an air cleaner 18 is both supporting frame 22 L , 22 R
Above is fixedly supported.

【0017】図5および図6を併せて参照して,燃料タ
ンク12は,合成樹脂から成る下部半体12aおよび上
部半体12bが相互に結合されて成るものであり,エン
ジンEの上方位置,すなわちエアクリーナ18の前方斜
め上方位置で車体フレームBに固定的に取付けられる。
而して燃料タンク12の前部両側には前方に突出する突
部26,26が設けられる。
Referring to FIG. 5 and FIG. 6, the fuel tank 12 is composed of a lower half 12a and an upper half 12b made of synthetic resin joined to each other. That is, the air cleaner 18 is fixedly attached to the vehicle body frame B at an obliquely upper position in front of the air cleaner 18.
Protrusions 26, 26 projecting forward are provided on both front sides of the fuel tank 12.

【0018】燃料タンク12における上部半体12bの
中央部上面には,そのブロー成形時に取付け部材27が
一体に結合される。この取付け部材27は,合成樹脂の
インジェクション成形によって形成されるものであり,
燃料タンク12内に通じて上方に延びる給油管28が取
付け部材27に一体に設けられ,この給油管28の外周
には雄ねじ29が設けられる。而して取付け部材27が
燃料タンク12とは独立してインジェクション成形され
ることにより,前記雄ねじ29のねじ精度を向上するこ
とができ,給油管28は,雄ねじ29に螺合される給油
キャップ30(図5参照)で閉塞される。
A mounting member 27 is integrally connected to the upper surface of the central portion of the upper half 12b of the fuel tank 12 at the time of blow molding. The mounting member 27 is formed by injection molding of a synthetic resin.
An oil supply pipe 28 extending upward through the fuel tank 12 is provided integrally with the mounting member 27, and a male screw 29 is provided on the outer periphery of the oil supply pipe 28. Since the mounting member 27 is injection-molded independently of the fuel tank 12, the screw accuracy of the male screw 29 can be improved. (See FIG. 5).

【0019】また取付け部材27には,上部半体12b
に設けられる孔31に連なる取付け孔32が設けられる
ものであり,該取付け孔32を相互間に挟む2個所で取
付け部材27にはナット33…がそれぞれ一体に埋設さ
れる。取付け孔32および孔31には燃料残量計34が
挿通されるものであり,この燃料残量計34の上端の表
示部34aがシール部材35を介して取付け孔32の上
端周縁に係合される。而して表示部34aに前記シール
部材35を介して係合するカバー36が取付け部材27
に当接され,該カバー36に挿通される一対のねじ部材
37,37が前記各ナット33…に螺合され,これによ
り燃料残量計34が燃料タンク12に強固に締結される
ことになる。
The mounting member 27 includes an upper half 12b.
The mounting member 27 is integrally embedded with the mounting member 27 at two places sandwiching the mounting hole 32 therebetween. A fuel gauge 34 is inserted into the mounting holes 32 and 31, and a display 34 a at the upper end of the fuel gauge 34 is engaged with the upper end periphery of the mounting hole 32 via a seal member 35. You. The cover 36 which engages with the display portion 34a via the seal member 35 is attached to the mounting member 27.
, And a pair of screw members 37, 37 inserted into the cover 36 are screwed into the nuts 33, whereby the fuel gauge 34 is firmly fastened to the fuel tank 12. .

【0020】なお取付け部材27において給油管28の
周囲には,燃料タンク12における上部半体12bとの
ブロー成形時の一体化にあたってガスを抜くための複数
のガス抜き孔38…が予め設けられており,それらのガ
ス抜き孔38…にブロー成形時に合成樹脂が侵入するこ
とにより,取付け部材27の上部半体12bへの結合が
より強固となる。
In the mounting member 27, a plurality of gas vent holes 38 are provided in advance around the fuel supply pipe 28 for venting gas when the fuel tank 12 is integrated with the upper half body 12b during blow molding. Since the synthetic resin enters the gas vent holes 38 at the time of blow molding, the attachment of the mounting member 27 to the upper half body 12b becomes stronger.

【0021】ところで,燃料タンク12はエアクリーナ
18の前方斜め上方に位置するものであるが,エアクリ
ーナ18に連なる合成樹脂製の外気導入管40は,比較
的深い水の中でもエアクリーナ18への外気の導入を可
能とするために,エアクリーナ18から燃料タンク12
側に向けて前上がりに延設される。而してエアクリーナ
18の中間下部には,半円状の弾性嵌合部41が設けら
れており,車体フレームBに設けられた支持筒42に該
弾性嵌合部41が嵌合されることにより外気導入管40
が支持される。
The fuel tank 12 is located obliquely above and in front of the air cleaner 18. An outside air introduction pipe 40 made of synthetic resin connected to the air cleaner 18 introduces outside air into the air cleaner 18 even in relatively deep water. In order to make the fuel tank 12
It is extended upward to the side. A semicircular elastic fitting portion 41 is provided in the middle lower portion of the air cleaner 18, and the elastic fitting portion 41 is fitted to a support cylinder 42 provided on the vehicle body frame B. Outside air inlet pipe 40
Is supported.

【0022】一方,燃料タンク12における後壁の左隅
角部には,内方側に窪んで後方に臨む収納凹所43が設
けられており,外気導入管40の先端開口部40aは,
該収納凹所43内に配置され,前方側に向けて開口せし
められる。
On the other hand, at the left corner of the rear wall of the fuel tank 12, a storage recess 43 which is depressed inward and faces rearward is provided.
It is arranged in the storage recess 43 and is opened toward the front side.

【0023】パワーユニットPにおけるエンジンEと,
該エンジンEの上方に位置する燃料タンク12との間に
は,耐熱性を有する合成樹脂から成る遮蔽板44が配置
されるものであり,収納凹所43の下方は該遮蔽板44
で覆われる。而して該遮蔽板44は,車体フレームBに
おける両支持フレーム22L ,22R に固定される。
The engine E in the power unit P,
A shielding plate 44 made of a synthetic resin having heat resistance is disposed between the fuel tank 12 and the fuel tank 12 located above the engine E.
Covered with. Thus, the shielding plate 44 is fixed to both support frames 22 L and 22 R in the vehicle body frame B.

【0024】車体フレームBには燃料タンク12を覆う
燃料タンクカバー45が取付けられる。この燃料タンク
カバー45は,燃料タンク12の左側面,エンジンEの
上部およびエアクリーナ18の左側を覆う左カバー部4
L と,燃料タンク12の右側面を覆う右カバー部45
R と,燃料タンク12の上面を覆う上カバー45T とを
備えるものであり,燃料タンク12の給油管28は上カ
バー部45T を貫通して上方に突出される。
A fuel tank cover 45 that covers the fuel tank 12 is attached to the body frame B. The fuel tank cover 45 includes a left cover portion 4 that covers the left side surface of the fuel tank 12, the upper portion of the engine E, and the left side of the air cleaner 18.
5 L and a right cover part 45 covering the right side surface of the fuel tank 12
And R, are those comprising a cover 45 T on covering the upper surface of the fuel tank 12, the oil supply pipe 28 of the fuel tank 12 is projected upward through the upper cover portion 45 T.

【0025】燃料タンクカバー45における左および右
カバー部45L ,45R と,燃料タンク12の左右両側
面との間には外気通路47L ,47R がそれぞれ形成さ
れるものであり,左および右カバー部45L ,45R
前部には,各外気通路47L,47R に通じる外気導入
口46L ,46R がそれぞれ設けられる。而して車両走
行時には,左側の外気導入口46L から導入された外気
が外気通路47L を経て外気導入管40の先端開口部4
0aに導かれ,また右側の外気導入口46R から導入さ
れた外気が外気通路47R を経て気化器19およびエア
クリーナ18等を冷却することになる。
Outside air passages 47 L and 47 R are formed between the left and right cover portions 45 L and 45 R of the fuel tank cover 45 and the left and right side surfaces of the fuel tank 12, respectively. the front portion of the right cover portion 45 L, 45 R, the outside air passage 47 L, outside air inlet 46 leading to the 47 R L, 46 R are respectively provided. During Thus to vehicle travel, the front end opening portion 4 of the outside air introducing tube 40 is introduced from the outside air introduction port 46 L on the left side outside air through the outside air passage 47 L
Led to 0a, also so that the outside air introduced from the right side of the outside air introduction port 46 R cools the carburetor 19 and the air cleaner 18 and the like through the outside air passage 47 R.

【0026】また左および右カバー部45L ,45R
前端部には,ゴム板48,48が取付けられており,燃
料タンク12の前部の突部26,26がそれらのゴム板
48,48を貫通して前方に突出される。而して両ゴム
板48,48は,燃料タンクカバー45の前部と燃料タ
ンク12との間に生じる間隙を塞ぐことになり,両前輪
F から跳ね上げられる泥や水が前記間隙から燃料タン
ク12の後方まで達することを防止する。
[0026] The front end portion of the left and right cover portions 45 L, 45 R, the rubber plate 48 is mounted, the front portion of the projection 26, 26 thereof a rubber plate 48 of the fuel tank 12, 48 and project forward. Thus to both the rubber plate 48, 48 will be close the gap that occurs between the front and the fuel tank 12 of the fuel tank cover 45, the fuel from the raised is mud and water splashed the gap from the front wheels W F It prevents reaching to the rear of the tank 12.

【0027】次にこの実施例の作用について説明する
と,エンジンEの後方に位置するエアクリーナ18に連
なる外気導入管40は,エンジンEの上方に在る燃料タ
ンク12側に向けて延設され,燃料タンク12の後壁に
設けられて後方に臨む収納凹所43に外気導入管40の
先端開口部40aが配置されるので,外気導入管40の
先端開口部40aと両前輪WF との間に燃料タンク12
が介在することになり,両前輪WF から燃料タンク12
の底板側に向けて泥や水が撥ね上げられても,撥ね上げ
られた泥や水が外気導入管40の先端開口部40aに侵
入することが極力防止される。しかも燃料タンク12の
底板に外気導入管40の先端開口部40aを突入させる
凹所が設けられた従来技術(特開昭62−214222
号公報)に比べると,燃料タンク12の底板形状を単純
化することが可能となり,特に燃料タンク12の後壁に
おける左隅角部に収納凹所43が設けられることにより
燃料タンク12の形状をより単純化することが可能であ
る。
Next, the operation of this embodiment will be described. The outside air introduction pipe 40 connected to the air cleaner 18 located behind the engine E extends toward the fuel tank 12 above the engine E, and the tip opening 40a of the outside air introducing pipe 40 is disposed in the housing recess 43 which faces rearward provided the rear wall of the tank 12, between the distal end opening portion 40a of the outside air introducing tube 40 and the front wheels W F Fuel tank 12
There will be interposed, the fuel tank 12 from both the front wheel W F
Even if the mud or water is repelled toward the bottom plate side, the repelled mud or water is prevented as much as possible from entering the tip opening 40a of the outside air introduction pipe 40. In addition, a conventional technology is disclosed in which a recess is provided in the bottom plate of the fuel tank 12 so that the distal end opening 40a of the outside air introduction pipe 40 can be inserted (Japanese Patent Laid-Open No. Sho 62-214222).
, The shape of the bottom plate of the fuel tank 12 can be simplified, and in particular, the storage recess 43 is provided in the left corner of the rear wall of the fuel tank 12 so that the shape of the fuel tank 12 can be further improved. It is possible to simplify.

【0028】また燃料タンク12およびエンジンE間に
は遮蔽板44が介在せしめられ,収納凹所43の下方は
該遮蔽板44で覆われるので,前輪WF から撥ね上げら
れる泥や水が燃料タンク12まで達することを該遮蔽板
44で遮ることによってより確実に防止することがで
き,外気導入管40の先端開口部40aへの泥や水の侵
入をより確実に防止することが可能となる。またエンジ
ンEの放熱が外気導入管40に導入される外気に及ぼす
影響を遮蔽板44で極力排除することができ,エンジン
Eに導入される外気の温度上昇を防止し,エンジンEの
出力変動を抑えることができる。
Further Between the fuel tank 12 and the engine E is the shielding plate 44 is caused to intervention, since lower housing concavity 43 is covered with the shielding plate 44, mud and water fuel tank to be raised splashed from the front wheel W F It is possible to more reliably prevent the reaching to 12 by the shielding plate 44, and it is possible to more reliably prevent the intrusion of mud or water into the tip opening 40a of the outside air introduction pipe 40. Further, the influence of the heat radiation of the engine E on the outside air introduced into the outside air introduction pipe 40 can be eliminated as much as possible by the shielding plate 44, so that the temperature rise of the outside air introduced into the engine E can be prevented and the output fluctuation of the engine E can be reduced. Can be suppressed.

【0029】以上,本発明の実施例を詳述したが,本発
明は上記実施例に限定されるものではなく,特許請求の
範囲に記載された本発明を逸脱することなく種々の設計
変更を行なうことが可能である。
Although the embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various design changes can be made without departing from the present invention described in the appended claims. It is possible to do.

【0030】たとえば,収納凹所43は,燃料タンク1
2の後壁の左隅角部に限定されるものではなく,燃料タ
ンク12の後壁のいずれの位置に設けられていてもよ
い。
For example, the storage recess 43 is provided in the fuel tank 1.
It is not limited to the left corner of the rear wall of the fuel tank 2 and may be provided at any position on the rear wall of the fuel tank 12.

【0031】[0031]

【発明の効果】以上のように発明によれば,燃料タン
クの後壁には,タンク内方側に窪んで後方に臨み外気導
入管の先端開口部を配置した収納凹所が設けられ
で,燃料タンクの底板形状単純化を図りつつ,前輪か
ら撥ね上げられた泥や水が外気導入管の先端開口部に侵
入することを極力防止することが可能となる。また上記
燃料タンクの前部の左右両側には,車体フレームの左右
一対の支持フレーム直上でそれぞれ前方側に突出する左
右一対の突部がそれぞれ設けられ,しかもその燃料タン
クの合成樹脂製の上部半体はブロー成形により成形され
る。
According to the present invention as described above, according to the present invention, the rear wall of the fuel tank, extraordinary seen outside air guide to the rear recessed in a tank inwardly
In <br/> storage recess arranged the distal end opening portion of the pipe is Ru provided, while achieving simplification of the bottom plate shape of the fuel tank, the mud and water raised splashed from the front wheel of the outside air introducing tube distal end opening It is possible to prevent entry into the part as much as possible. Also above
The left and right sides of the front of the fuel tank are
Left just above the pair of support frames, each projecting forward
A pair of right protrusions are provided, and the fuel tank
The upper half made of synthetic resin is blow molded.
You.

【0032】また特に請求項2の発明によれば,燃料タ
ンクの上部半体にそれのブロー成形時に結合される取付
け部材により,給油管が該上部半体に一体に設けられ
る。
According to the invention of the second aspect, the fuel tank
Attachment to the upper half of the link when it is blow molded
A lubrication pipe is provided integrally with the upper half by means of
You.

【0033】また特に請求項3の発明によれば,上記給
油管の近くに燃料残量計が配置される。
According to the third aspect of the present invention, the supply
A fuel gauge is located near the oil pipe.

【0034】また特に請求項4の発明によれば,上記燃
料残量計が,燃料タンクの上部半体と該上部半体にそれ
のブロー成形時に結合される取付け部材とにそれぞれ設
けた孔に挿通され,その取付け部材には燃料残量計の表
示部が,該表示部にシール部材を介して係合するカバー
で固定される。
According to the fourth aspect of the present invention, the fuel
The fuel gauge is placed on the upper half of the fuel tank and on the upper half.
And the mounting members that are joined during blow molding of
The fuel gauge is inserted into the hole,
A cover in which the indicating portion is engaged with the indicating portion via a sealing member.
Fixed at.

【図面の簡単な説明】[Brief description of the drawings]

【図1】鞍乗型車両の側面図FIG. 1 is a side view of a straddle-type vehicle.

【図2】図1の燃料タンクカバーを外した状態での要部
拡大平面図
FIG. 2 is an enlarged plan view of a main part with the fuel tank cover of FIG. 1 removed.

【図3】図2の3−3線断面図FIG. 3 is a sectional view taken along line 3-3 in FIG. 2;

【図4】図2の4−4線拡大断面図FIG. 4 is an enlarged sectional view taken along line 4-4 of FIG. 2;

【図5】図2の5−5線に沿う断面図FIG. 5 is a sectional view taken along line 5-5 in FIG. 2;

【図6】燃料タンクの平面図FIG. 6 is a plan view of a fuel tank.

【図7】図6の7−7線拡大断面図FIG. 7 is an enlarged sectional view taken along line 7-7 of FIG. 6;

【符号の説明】 12 燃料タンク12a 下部半体 12b 上部半体 18 エアクリーナ22L ,22R 支持フレーム 26 突部 27 取付け部材 28 給油管 31,32 34 燃料残量計 34a 表示部 35 シール部材 36 カバー 40 外気導入管 40a 外気導入管の先端開口部 43 収納凹 B 車体フレーム E エンジン WF 前輪 WR 後輪[Description of reference numerals] 12 fuel tank 12a lower half 12b upper half 18 an air cleaner 22 L, 22 R support frame 26 projection 27 mounting member 28 oil supply pipe 31, 32, holes 34 the fuel quantity gauge 34a display portion 35 the seal member 36 cover 40 outside air introduction tube 40a outside air-introducing tube distal opening 43 accommodating concave office B body frame E engine W F front W R rear wheel

───────────────────────────────────────────────────── フロントページの続き (72)発明者 小林 昭仁 埼玉県和光市中央1丁目4番1号 株式会 社本田技術研究所内   ────────────────────────────────────────────────── ─── Continuation of front page    (72) Inventor Akihito Kobayashi             1-4-1 Chuo, Wako-shi, Saitama Stock Association             Inside the Honda Research Laboratory

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 前部に前輪(WF )が懸架されるととも
に後部に後輪(WR)が懸架される車体フレーム(B)
の中間部に,エンジン(E)と,該エンジン(E)に連
なってエンジン(E)の後方に配置されるエアクリーナ
(18)と,前記エンジン(E)の上方に位置する燃料
タンク(12)とが搭載され,外気導入管(40)がエ
アクリーナ(18)から燃料タンク(12)側に延設さ
れる鞍乗型車両において,燃料タンク(12)の後壁に
は,内方側に窪んで後方に臨む収納凹所(43)が設け
られ,外気導入管(40)の先端開口部(40a)が該
収納凹所(43)に配置されることを特徴とする鞍乗型
車両。
1. A body frame (B) in which a front wheel (W F ) is suspended at a front portion and a rear wheel (W R ) is suspended at a rear portion.
An engine (E), an air cleaner (18) connected to the engine (E) and arranged behind the engine (E), and a fuel tank (12) located above the engine (E) In a straddle-type vehicle in which an outside air introduction pipe (40) extends from the air cleaner (18) to the fuel tank (12) side, the rear wall of the fuel tank (12) has an inward recess. A storage recess (43) facing rearward of the vehicle, and a leading end opening (40a) of an outside air introduction pipe (40) is disposed in the storage recess (43).
【請求項2】 収納凹所(43)の下方を覆って燃料タ
ンク(12)およびエンジン(E)間に配置される遮蔽
板(44)が,車体フレーム(B)に固定されることを
特徴とする請求項1記載の鞍乗型車両。
2. A shielding plate (44) disposed between the fuel tank (12) and the engine (E) so as to cover a lower part of the storage recess (43) and is fixed to the vehicle body frame (B). The straddle-type vehicle according to claim 1, wherein
JP2002176263A 2002-06-17 2002-06-17 Saddle riding vehicle Expired - Fee Related JP3689389B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002176263A JP3689389B2 (en) 2002-06-17 2002-06-17 Saddle riding vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002176263A JP3689389B2 (en) 2002-06-17 2002-06-17 Saddle riding vehicle

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP16031894A Division JP3358876B2 (en) 1994-07-12 1994-07-12 Saddle-type vehicle

Publications (2)

Publication Number Publication Date
JP2003072640A true JP2003072640A (en) 2003-03-12
JP3689389B2 JP3689389B2 (en) 2005-08-31

Family

ID=19195241

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
JP (1) JP3689389B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006281860A (en) * 2005-03-31 2006-10-19 Honda Motor Co Ltd Saddle riding type vehicle
JP2007191104A (en) * 2006-01-20 2007-08-02 Suzuki Motor Corp Irregular ground travelling vehicle
JP2009101748A (en) * 2007-10-19 2009-05-14 Honda Motor Co Ltd Inlet structure of fuel tank

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006281860A (en) * 2005-03-31 2006-10-19 Honda Motor Co Ltd Saddle riding type vehicle
US7290533B2 (en) 2005-03-31 2007-11-06 Honda Motor Co., Ltd. Saddle-ride type vehicle
JP4574414B2 (en) * 2005-03-31 2010-11-04 本田技研工業株式会社 Saddle riding vehicle
JP2007191104A (en) * 2006-01-20 2007-08-02 Suzuki Motor Corp Irregular ground travelling vehicle
JP2009101748A (en) * 2007-10-19 2009-05-14 Honda Motor Co Ltd Inlet structure of fuel tank

Also Published As

Publication number Publication date
JP3689389B2 (en) 2005-08-31

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