JP3511296B2 - Cooling air introduction structure for motorcycles - Google Patents
Cooling air introduction structure for motorcyclesInfo
- Publication number
- JP3511296B2 JP3511296B2 JP29222891A JP29222891A JP3511296B2 JP 3511296 B2 JP3511296 B2 JP 3511296B2 JP 29222891 A JP29222891 A JP 29222891A JP 29222891 A JP29222891 A JP 29222891A JP 3511296 B2 JP3511296 B2 JP 3511296B2
- Authority
- JP
- Japan
- Prior art keywords
- radiator
- cowl
- cooling air
- guide piece
- engine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J17/00—Weather guards for riders; Fairings or stream-lining parts not otherwise provided for
- B62J17/02—Weather guards for riders; Fairings or stream-lining parts not otherwise provided for shielding only the rider's front
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J17/00—Weather guards for riders; Fairings or stream-lining parts not otherwise provided for
- B62J17/10—Ventilation or air guiding devices forming part of fairings
Description
【発明の詳細な説明】
【０００１】
【産業上の利用分野】本発明は、エンジンとその前方の
ラジエータ及びヘッドライト周りを覆うカウル付きの自
動二輪車におけるラジエータ上方部への冷却風の導入構
造に関するものである。
【０００２】
【従来の技術】Ｖ型エンジンとその前方のラジエータ及
びヘッドライト周りを覆うカウルを備える自動二輪車に
おいて、Ｖ型エンジンの前気筒部前方のカウル側面部に
冷却風導入口を開口するとともに、その前気筒部側方の
カウル側面部の内側面に、冷却風導入口に流入する冷却
風を後気筒部へ導くガイド片を設ける技術が、実開平１
−１７００８８号公報により公知となっている。
【０００３】
【発明が解決しようとする課題】ところで、ラジエータ
の上方部には熱気がこもりやすいため、これを吹き飛ば
すべく別体の導風ダクトをカウル内に設けると、部品点
数・組付作業が多くなり、重量・価格の上昇を招くこと
になる。
【０００４】そこで本発明の目的は、エンジンとその前
方のラジエータ及びヘッドライト周りを覆うカウル付き
の自動二輪車において、別体の導風ダクトを用いること
なく、ラジエータ上方部の熱気を吹き飛ばせるようにし
た冷却風導入構造を提供することにある。
【０００５】
【課題を解決するための手段】以上の課題を解決すべく
本発明は、前輪と後輪との間に配置したエンジンと、こ
のエンジンの前方に配置したラジエータと、前輪の上方
に配置したヘッドライトとの周りをカウルで覆った自動
二輪車において、ラジエータをヘッドパイプの後方に且
つ燃料タンクの前部下方に配置し、カウルは、ラジエー
タの前方を覆う部分の側面部に冷却風導入口を形成する
とともに、該ラジエータの側面を覆う部分にラジエータ
の側面上部へ向って延びる後上がり形状のガイド片を一
体に形成し、このガイド片の先端をラジエータの側面に
近接させることにより、冷却風導入口から流入した冷却
風をガイド片にてラジエータの上方へ導くように構成す
るとともに、カウルの後半部であって、前記ガイド片の
後下方には、ラジエータ冷却後の温風をカウル外側に排
出する温風排出口を開口させたことを特徴とする。
【０００６】
【作用】冷却風は、カウルのうちラジエータの前方を覆
う部分の側面部の冷却風導入口から流入し、ラジエータ
の側面とカウルとの間の後上がり形状のガイド片に導か
れて、ラジエータの上方へ流れ、ラジエータ上方部の熱
気を吹き飛ばす。
【０００７】
【実施例】以下に本発明の実施例を図面に基づいて説明
する。本発明を適用した自動二輪車の一例を示す図１及
び図２において、１はヘッドパイプ、２はメインフレー
ム、３はピボットプレート、４はアッパーシートレー
ル、５はロアーシートレール、６はエンジン、７はラジ
エータ、８はスイングアーム、９は後輪、１１は燃料タ
ンク、１２はシート、１３はシートカウル、１４はハン
ドル、１５はフロントフォーク、１６は前輪、１７はメ
ーターユニット、１８はヘッドライト、１９はフロント
ウインカライト、２１はメインカウルである。
【０００８】メインカウル２１は、エンジン６の両側方
及び下方を覆うアンダーカウル２２と、エンジン６上の
気筒部６ａ及びその前方のラジエータ７の両側方を覆う
左右のミドルカウル２３，２３と、ヘッドライト１８，
１８周りを覆うアッパーカウル２４と、走行風をラジエ
ータ７に導く左右のインナーミドルカウル２５，２５と
から構成されている。すなわち、メインカウル２１は図
１及び図２から明らかなように、前輪１６と後輪９との
間に配置したエンジン６と、このエンジン６の前方でヘ
ッドパイプ１の後方で燃料タンク１１の前部下方に且つ
エンジン６に隣接して配置したラジエータ７と、前輪１
６の上方に配置したヘッドライト１８，１８との、周り
を覆うことになる。図１及びカウルのみを拡大した図３
に示すように、インナーミドルカウル２５は、ミドルカ
ウル２３前部内側からアッパーカウル２４下半部内側に
空間を開けて位置するものであり、ミドルカウル２３の
後半部には、ラジエータ７冷却後の温風排出口２６が開
口している。図３で明示したように、温風排出口２６
は、ミドルカウル２３の内側面に設けた前述のガイド片
３１の後部の下方に設けられ、ミドルカウル２３の外側
面に開口設置されている。
【０００９】以上において、図１乃至図４に示すよう
に、アッパーカウル２４下半部の側面部略中央に、ラジ
エータ７の上部前方に位置して開口する冷却風導入口２
７を形成している。そして、ミドルカウル２３の上部内
側面には、図５にも示すように、ラジエータ７側面部の
上部に近接するガイド片３１を一体に形成している。こ
のガイド片３１は、前方の冷却風導入口２７から流入し
た冷却風を、ラジエータ７上方へ指向させて流し込むべ
く、後上がり形状に形成されている。上記説明並びに図
１〜図４から明らかなように、メインカウル２１は、ラ
ジエータ７の前方を覆う部分の側面部に冷却風導入口２
７，２７を形成するとともに、ラジエータ７の側面を覆
う部分にラジエータ７の側面上部へ向って延びる後上が
り形状のガイド片３１を一体に形成し、このガイド片３
１の先端をラジエータ７の側面に近接させたものであ
る。従って、冷却風導入口２７から流入した冷却風を、
ガイド片３１にてラジエータ７の上方へ導くことができ
る。
【００１０】以上により、図６に矢印で示すように、ア
ッパーカウル２４側面部に開口した冷却風導入口２７に
流入した冷却風は、ミドルカウル２３内側面に一体で、
ラジエータ７側面部に近接する後上がり形状のガイド片
３１によって、ラジエータ７上方に流れ込むため、別体
の導風ダクトを用いることなく、ラジエータ７上方部に
こもりやすい熱気を吹き飛ばすことができるものとなっ
ている。
【００１１】
【発明の効果】以上のように本発明の冷却風導入構造に
よれば、ラジエータをヘッドパイプの後方に且つ燃料タ
ンクの前部下方に配置し、カウルが、ラジエータの前方
を覆う部分の側面部に冷却風導入口を形成するととも
に、ラジエータの側面を覆う部分にラジエータの側面上
部へ向って延びる後上がり形状のガイド片を一体に形成
し、且つカウルの後半部であって、前記ガイド片の後下
方には、ラジエータ冷却後の温風をカウル外側に排出す
る温風排出口を開口させ、このガイド片の先端をラジエ
ータの側面に近接させることにより、冷却風導入口から
流入した冷却風を、ガイド片によってラジエータの上方
へ導き、ラジエータ上方部の熱気を吹き飛ばすことがで
きるため、別体の導風ダクトを用いることなく、重量・
価格の低下を図ることができる。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for introducing cooling air into an upper portion of a motorcycle having an engine, a radiator in front of the engine and a cowl for covering around a headlight. Things. 2. Description of the Related Art In a motorcycle provided with a V-type engine and a radiator in front of the V-type engine and a cowl for covering around a headlight, a cooling air inlet is formed in a side surface of a cowl in front of a front cylinder portion of the V-type engine. The technique of providing a guide piece for guiding cooling air flowing into the cooling air introduction port to the rear cylinder portion on the inner side surface of the cowl side portion side of the front cylinder portion is disclosed in
This is known from Japanese Patent Publication No. 1700088. [0003] By the way, since hot air tends to be trapped in the upper part of the radiator, if a separate air guide duct is provided in the cowl to blow it off, the number of parts and the assembling work are reduced. It increases the weight and price. Accordingly, an object of the present invention is to provide a motorcycle with a cowl that surrounds an engine, a radiator in front of the engine, and a headlight so that hot air above the radiator can be blown off without using a separate air duct. Another object of the present invention is to provide a cooling air introduction structure. [0005] In order to solve the above-mentioned problems, the present invention provides an engine disposed between a front wheel and a rear wheel, a radiator disposed in front of the engine, and a radiator disposed above the front wheel. In a motorcycle in which a cowl covers the area around the headlights, the radiator is located behind the head pipe and below the front of the fuel tank, and the cowl introduces cooling air to the side of the part that covers the front of the radiator. While forming a mouth, a rearwardly rising guide piece extending toward the upper side of the radiator is integrally formed at a portion covering the side face of the radiator, and the tip of the guide piece is brought closer to the side face of the radiator, so that cooling is performed. The cooling air flowing from the air inlet is guided by the guide piece to the upper side of the radiator .
And the rear half of the cowl,
In the lower rear, the hot air after cooling the radiator is discharged to the outside of the cowl.
The warm air discharge port for out and said that you were open. The cooling air flows from the cooling air inlet on the side of the portion of the cowl that covers the front of the radiator, and is guided to the rearward rising guide piece between the side of the radiator and the cowl. Flows above the radiator and blows off the hot air above the radiator. An embodiment of the present invention will be described below with reference to the drawings. 1 and 2 showing an example of a motorcycle to which the present invention is applied, 1 is a head pipe, 2 is a main frame, 3 is a pivot plate, 4 is an upper seat rail, 5 is a lower seat rail, 6 is an engine, 7 Is a radiator, 8 is a swing arm, 9 is a rear wheel, 11 is a fuel tank, 12 is a seat, 13 is a seat cowl, 14 is a steering wheel, 15 is a front fork, 16 is a front wheel, 17 is a meter unit, 18 is a headlight, 19 is a front blinker light, and 21 is a main cowl. The main cowl 21 includes an under cowl 22 that covers both sides and below the engine 6, left and right middle cowls 23, 23 that cover both sides of the cylinder portion 6 a on the engine 6 and the radiator 7 in front of it, and a head. Light 18,
The upper cowl 24 covers the circumference of the vehicle 18, and the left and right inner middle cowls 25 guide the traveling wind to the radiator 7. 1 and 2, the main cowl 21 is disposed between the front wheel 16 and the rear wheel 9 and the front of the engine 6, the rear of the head pipe 1 and the front of the fuel tank 11. A radiator 7 arranged below the engine and adjacent to the engine 6;
The headlights 18 and 18 disposed above the headlight 6 cover the surroundings. FIG. 1 and FIG. 3 in which only the cowl is enlarged .
As shown in the figure, the inner middle cowl 25 is located with a space between the front inside of the middle cowl 23 and the inside of the lower half of the upper cowl 24, and the rear half of the middle cowl 23 has The hot air outlet 26 is open. As clearly shown in FIG.
Is the above-described guide piece provided on the inner side surface of the middle cowl 23.
31 is provided below the rear part of the middle cowl 23
An opening is installed on the surface. In the above, as shown in FIGS. 1 to 4, the cooling air inlet 2 is located substantially at the center of the lower half of the upper cowl 24 at the upper front of the radiator 7.
7 are formed. Then, as shown in FIG. 5, on the upper inner side surface of the middle cowl 23 ,
The guide piece 31 near the upper part is integrally formed. The guide piece 31 is formed in a rearward rising shape so that the cooling air flowing from the front cooling air inlet 27 is directed upward to the radiator 7. As is clear from the above description and FIGS. 1 to 4, the main cowl 21 has the cooling air inlet 2
7 and 27, and a rearwardly rising guide piece 31 extending toward the upper side of the radiator 7 is formed integrally with a portion covering the side face of the radiator 7, and the guide piece 3 is formed.
1 has a tip close to the side surface of the radiator 7. Therefore, the cooling air flowing from the cooling air inlet 27 is
The guide piece 31 can guide the radiator 7 upward. As described above, as indicated by the arrow in FIG. 6, the cooling air flowing into the cooling air inlet 27 opened on the side surface of the upper cowl 24 is integrated with the inner side surface of the middle cowl 23,
Since the guide piece 31 has a rearwardly rising shape close to the side surface of the radiator 7 and flows into the upper part of the radiator 7, it is possible to blow off hot air which is easily trapped in the upper part of the radiator 7 without using a separate air duct. ing. As described above, according to the cooling air introduction structure of the present invention, the radiator is arranged behind the head pipe and below the front part of the fuel tank, and the cowl covers the front of the radiator. A cooling air introduction port is formed on the side surface of the radiator, and a rearwardly rising guide piece extending toward the upper side of the radiator is integrally formed at a portion covering the side surface of the radiator, and the rear half of the cowl, Under the guide piece
The hot air after cooling the radiator to the outside of the cowl
By opening the hot air outlet, and bringing the tip of this guide piece close to the side of the radiator, the cooling air flowing from the cooling air inlet is guided above the radiator by the guide piece, and the hot air above the radiator is removed. Because it can be blown off, weight and weight can be reduced without using a separate air duct.
The price can be reduced.
【図面の簡単な説明】
【図１】本発明を適用した自動二輪車の一例を示す概略
側面図
【図２】同じく正面図
【図３】本発明に係る冷却風導入構造を示すメインカウ
ル部分の拡大側面図
【図４】同じく破断平面図
【図５】同じく破断正面図
【図６】図３の矢印Ａ−Ａ線に沿った作用説明図
【符号の説明】
６…エンジン、７…ラジエータ、１８…ヘッドライト、
２１…メインカウル、２２…アンダーカウル、２３…ミ
ドルカウル、２４…アッパーカウル、２６…温風排出
口、２７…冷却風導入口、３１…ガイド片。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic side view showing an example of a motorcycle to which the present invention is applied. FIG. 2 is a front view of the same. FIG. 3 is a main cowl portion showing a cooling air introduction structure according to the present invention. Enlarged side view [FIG. 4] Similarly, a cutaway plan view [FIG. 5] Similarly, a cutaway front view [FIG. 6] Action explanation view along arrow AA line in FIG. 3 [Description of reference numerals] 6 ... Engine, 7 ... Radiator, 18 ... headlights,
21: Main cowl, 22: Under cowl, 23: Middle cowl, 24: Upper cowl, 26: Hot air discharge
Mouth, 27: cooling air inlet, 31: guide piece.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平４−133887（ＪＰ，Ａ) 特開 平２−208188（ＪＰ，Ａ) 実開 昭62−173290（ＪＰ，Ｕ) 実開 昭62−76792（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) B62J 17/00 B62J 39/00 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-4-133887 (JP, A) JP-A-2-208188 (JP, A) Japanese Utility Model Application No. Sho 62-173290 (JP, U) Japanese Utility Model Utility Model No. Sho 62- 76792 (JP, U) (58) Fields investigated (Int. Cl. 7 , DB name) B62J 17/00 B62J 39/00
Claims (1)
と、このエンジンの前方に配置したラジエータと、前輪
の上方に配置したヘッドライトとの周りをカウルで覆っ
た自動二輪車において、 前記ラジエータをヘッドパイプの後方に且つ燃料タンク
の前部下方に配置し、前記カウルは、前記ラジエータの
前方を覆う部分の側面部に冷却風導入口を形成するとと
もに、 該 ラジエータの側面を覆う部分にラジエータの側面上部
へ向って延びる後上がり形状のガイド片を一体に形成
し、このガイド片の先端をラジエータの側面に近接させ
ることにより、前記冷却風導入口から流入した冷却風を
ガイド片にてラジエータの上方へ導くように構成すると
ともに、 前記カウルの後半部であって、前記ガイド片の後下方に
は、ラジエータ冷却後の温風をカウル外側に排出する温
風排出口を開口させた、 こ とを特徴とする自動二輪車の冷却風導入構造。(57) [Claim 1] A cowl around an engine disposed between a front wheel and a rear wheel, a radiator disposed in front of the engine, and a headlight disposed above the front wheel. In the motorcycle covered with, the radiator is arranged behind the head pipe and below the front part of the fuel tank, and the cowl forms a cooling air introduction port on a side surface of a portion covering the front of the radiator , A rearwardly rising guide piece extending toward the upper side of the radiator is integrally formed at a portion covering the side face of the radiator, and the leading end of the guide piece is brought close to the side face of the radiator, whereby the cooling air is introduced from the cooling air inlet. configure the cooling air to direct at the guide piece upwardly of the radiator then
Both are the rear half of the cowl, and
Is the temperature at which the warm air after cooling the radiator is discharged to the outside of the cowl.
The wind outlet was opened, the cooling air of the motorcycle, wherein the this introduction structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29222891A JP3511296B2 (en) | 1991-10-11 | 1991-10-11 | Cooling air introduction structure for motorcycles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29222891A JP3511296B2 (en) | 1991-10-11 | 1991-10-11 | Cooling air introduction structure for motorcycles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05105152A JPH05105152A (en) | 1993-04-27 |
| JP3511296B2 true JP3511296B2 (en) | 2004-03-29 |
Family
ID=17779152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29222891A Expired - Lifetime JP3511296B2 (en) | 1991-10-11 | 1991-10-11 | Cooling air introduction structure for motorcycles |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3511296B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3679164B2 (en) * | 1995-09-27 | 2005-08-03 | ヤマハ発動機株式会社 | Motorcycle |
| JP5312976B2 (en) * | 2009-02-19 | 2013-10-09 | 本田技研工業株式会社 | Motorcycle |
| JP2011011570A (en) * | 2009-06-30 | 2011-01-20 | Kawasaki Heavy Ind Ltd | Front cowling for motorcycle |
| JP2015157560A (en) * | 2014-02-24 | 2015-09-03 | スズキ株式会社 | Engine cooling structure of two-wheeled motor vehicle |
| JP6317726B2 (en) * | 2015-12-18 | 2018-04-25 | 本田技研工業株式会社 | Cowling structure of saddle riding type vehicle |
| JP2022044201A (en) | 2020-09-07 | 2022-03-17 | スズキ株式会社 | Louver member |
-
1991
- 1991-10-11 JP JP29222891A patent/JP3511296B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05105152A (en) | 1993-04-27 |
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