JP3038593B2 - Motorcycle windshield - Google Patents

Motorcycle windshield

Info

Publication number
JP3038593B2
JP3038593B2 JP2231926A JP23192690A JP3038593B2 JP 3038593 B2 JP3038593 B2 JP 3038593B2 JP 2231926 A JP2231926 A JP 2231926A JP 23192690 A JP23192690 A JP 23192690A JP 3038593 B2 JP3038593 B2 JP 3038593B2
Authority
JP
Japan
Prior art keywords
cowling
wind
vehicle body
windshield
upper edge
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2231926A
Other languages
Japanese (ja)
Other versions
JPH04113980A (en
Inventor
欣司 浅村
正人 鈴木
閲央 松木
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.)
Yamaha Motor Co Ltd
Original Assignee
Yamaha 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 Yamaha Motor Co Ltd filed Critical Yamaha Motor Co Ltd
Priority to JP2231926A priority Critical patent/JP3038593B2/en
Publication of JPH04113980A publication Critical patent/JPH04113980A/en
Application granted granted Critical
Publication of JP3038593B2 publication Critical patent/JP3038593B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • B62J17/04—Windscreens
    • 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】 ［発明の属する技術分野］ この発明は、自動二輪車の風防装置に係り、詳しく
は、車体の前側から両端部を覆うカウリングに風防部を
有する自動二輪車の風防装置に関する。Description: TECHNICAL FIELD The present invention relates to a windshield for a motorcycle, and more particularly to a windshield for a motorcycle having a windshield on a cowling covering both ends from the front side of a vehicle body.

［従来の技術］ 例えば高速タイプの自動二輪車では、車体の前側から
両端部をカウリングで覆い、このカウリングに斜上後方
に向かって延びる風防部を有するものがある。このカウ
リングは表面を滑らかな流線形にして、走行によって受
ける風の抵抗を減じて、高速走行ができるようにすると
共に、ライダーに直接当たる風をなくして、ライダーの
疲労を防ぐ効果がある。2. Description of the Related Art For example, in a high-speed motorcycle, both ends are covered with a cowling from the front side of a vehicle body, and the cowling has a windshield extending diagonally upward and rearward. This cowling has a smooth streamlined surface to reduce the resistance of the wind received by running, thereby enabling high-speed running, and has the effect of eliminating wind that directly hits the rider and preventing rider fatigue.

［発明が解決しようとする課題］ ところで、自動二輪車の走行によって、カウリングの
斜上後方に向かって延びる風防部に当る風は、この風防
部で導かれて斜め後方で上方に向かって流れるが、風防
部の上部縁部で風の巻込み現象が生じる。このため、ラ
イダーの前方で風が乱流となって、ライダーの上半身に
当たることになる。[Problems to be Solved by the Invention] By the way, when the motorcycle runs, the wind hitting the windshield extending diagonally upward and rearward of the cowling is guided by the windshield and flows upward obliquely rearward. Wind entrainment occurs at the upper edge of the windshield. As a result, the wind becomes turbulent in front of the rider and hits the upper body of the rider.

従って、カウリングの風防部を、さらに斜上後方に向
かって延ばすことが考えられるが、風防部が高くなる
と、その分カウリングが大型になり、さらにライダーの
近くまで延びてわずらわしい。Therefore, it is conceivable that the windshield of the cowling is further extended obliquely rearward. However, when the windshield is higher, the cowling becomes larger, and furthermore, it extends further to the vicinity of the rider and is troublesome.

この発明はこのような実状に鑑みてなされたもので、
カウリングの風防部を高くすることなく、風がライダー
の上半身に当たることを軽減する自動二輪車の風防装置
を提供することを目的としている。The present invention has been made in view of such circumstances,
It is an object of the present invention to provide a windshield device for a motorcycle that reduces wind from hitting the upper body of a rider without increasing the height of a windshield portion of a cowling.

［課題を解決するための手段］ 前記課題を解決するために、この発明は、車体の前側
から両側方を覆うカウリングを備え、このカウリングに
前照灯の窓部の上方位置には透明体が設けられる自動二
輪車の風防装置において、前記透明体の上部縁部が車体
前側へ段差部を設けて突出させて形成され、前記カウリ
ングから前記透明体の段差部までは車体前側に突出する
凸形状の曲面を有し、前記上部縁部は車体後側に凹む凹
形状の曲面を有し、前記段差部に導風孔を形成したこと
を特徴としている。Means for Solving the Problems In order to solve the above problems, the present invention includes a cowling that covers both sides from the front side of the vehicle body, and a transparent body is provided on the cowling at a position above the window portion of the headlight. In the windshield device for a motorcycle provided, an upper edge portion of the transparent body is formed by projecting with a stepped portion provided on the front side of the vehicle body, and a convex shape projecting forward from the cowling to the stepped portion of the transparent body. It has a curved surface, the upper edge portion has a concave curved surface recessed toward the rear side of the vehicle body, and a wind guide hole is formed in the step portion.

この発明では、車体の前側を覆うカウリングと透明体
に当たる風が凸形状の曲面により車体側方から上方にわ
たり後方に向かって流れ、上方へ向かって流れる風の一
部が、段差部に形成された導風孔からそのまま上部縁部
の裏側に沿って上方へ流れる。According to the present invention, the wind hitting the cowling and the transparent body covering the front side of the vehicle body flows rearward from the vehicle body side upward through the curved surface of the convex body, and a part of the wind flowing upward is formed in the step portion. It flows upward along the back side of the upper edge as it is from the air guide hole.

また、上部縁部に当たる風は凹形状の曲面により上部
縁部で巻込まれる現象が生じなくなり、風は斜め後方で
上方に向かって高く流れ、上部縁部の裏側に沿って上方
へ流れる風と干渉することを少なくして風がライダーの
上半身に当たることを軽減する。In addition, the wind that hits the upper edge does not get caught in the upper edge due to the concave curved surface, and the wind flows high upward diagonally behind and interferes with the wind that flows upward along the back side of the upper edge. Less wind to hit the rider's upper body.

［発明の実施の形態］ 次に、添付図面と共に、この発明の実施例を詳細に説
明する。[Embodiment of the Invention] Next, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

第１図はこの発明を適用した自動二輪車の側面図、第
２図はカウリングの断面図、第３図はカウリングの正面
図である。FIG. 1 is a side view of a motorcycle to which the present invention is applied, FIG. 2 is a sectional view of a cowling, and FIG. 3 is a front view of the cowling.

図中符号１は自動二輪車の車体で、この車体１の前側
にはフロントフォーク２が旋回可能に設けられ、このフ
ロントフォーク２の下部には前輪３が支持され、上部に
はハンドル４が設けられている。車体１の後側にはリヤ
サスペンション５を介して後輪６が支持され、車体１の
中央部にはエンジン７が搭載されている。このエンジン
７の上方には燃料タンク８が車体に載置され、この後方
にはシート９が取付けられ、シート９の下方の両側から
後方はサイドカバー10で覆われている。In the figure, reference numeral 1 denotes a motorcycle body, a front fork 2 is provided at the front side of the vehicle body 1 so as to be pivotable, a front wheel 3 is supported at a lower portion of the front fork 2, and a handle 4 is provided at an upper portion. ing. A rear wheel 6 is supported on the rear side of the vehicle body 1 via a rear suspension 5, and an engine 7 is mounted on a central portion of the vehicle body 1. A fuel tank 8 is mounted on the vehicle body above the engine 7, and a seat 9 is attached to the rear of the fuel tank 8, and the rear from both sides below the seat 9 is covered with a side cover 10.

車体１の前側にはカウリング11が備えられ、このカウ
リング11はフロントフォーク２の上部前側から左右両側
でエンジン７の上方まで延び、車体１の前側から両側方
を覆っている。A cowling 11 is provided on the front side of the vehicle body 1, and the cowling 11 extends from the upper front side of the front fork 2 to above the engine 7 on both left and right sides, and covers both sides from the front side of the vehicle body 1.

カウリング11の前側中央部には前照灯の窓部12が取付
けられ、このカウリング11の前側は斜上後方に向かって
延びる風防部11aが形成されている。この風防部11aはハ
ンドル４の斜め前上方までハンドル４の前側を覆うよう
に延びている。その前照灯の窓部12の上方位置には透明
体13が設けられ、ライダー14が前方を見ることができる
ようになっている。A window portion 12 of a headlight is attached to a front central portion of the cowling 11, and a windshield portion 11a extending obliquely upward and rearward is formed on the front side of the cowling 11. The windshield portion 11a extends to the upper front diagonally of the handle 4 so as to cover the front side of the handle 4. A transparent body 13 is provided above the headlight window 12 so that the rider 14 can look ahead.

透明体13の上部縁部13aが車体前側へ段差部13bを設け
て突出させて形成され、カウリング11から透明体13の段
差部13bまでは車体前側に突出する凸形状の曲面に形成
され、段差部13bには導風孔15が中央部の両側に車幅方
向に長く形成されている。さらに、透明体13の上部縁部
13aは風圧面に対して凹状の曲面13dを有している。An upper edge 13a of the transparent body 13 is formed by providing a step 13b to the front side of the vehicle body so as to protrude, and a stepped portion 13b of the transparent body 13 from the cowling 11 is formed into a convex curved surface protruding toward the front side of the vehicle body. In the portion 13b, air guide holes 15 are formed on both sides of the central portion so as to be long in the vehicle width direction. Furthermore, the upper edge of the transparent body 13
13a has a curved surface 13d that is concave with respect to the wind pressure surface.

従って、自動二輪車の走行で、風が車体１の前側を覆
うカウリング11と透明体13に当たる風が凸形状の曲面に
より車体側方から上方にわたり後方に向かって流れ、上
方へ向かって流れる風の一部が、段差部13bに形成され
た導風孔15からそのまま上部縁部13aの裏側に沿って上
方へ流れる。Therefore, when the motorcycle travels, the wind that hits the cowling 11 and the transparent body 13 that covers the front side of the vehicle body 1 flows upward from the vehicle body side to the rear due to the convex curved surface, and the wind that flows upward. The portion flows upward along the back side of the upper edge portion 13a as it is from the air guide hole 15 formed in the step portion 13b.

また、上部縁部13aの裏側13cに沿って上方へ流れる風
で、斜め後方で上方に向かって流れる風が、上部縁部13
aで巻込まれる現象が生じなくなり、風は斜め後方で上
方に向かって高く流れる。このため、カウリング11の風
防部11aはハンドル４の斜め前上方の位置にあるが、風
はライダー14の上半身14aに当たることが軽減されて、
頭部の上方へ流れていくようになる。さらに、透明体13
の上部縁部13aが風圧面に対して凹状の曲面13dを有して
いることから、透明体13の上部縁部13aによって風が上
方に効果的に流れる。Further, the wind flowing upward along the back side 13c of the upper edge 13a,
The phenomenon of being caught in a does not occur, and the wind flows high upward and diagonally behind. For this reason, the windshield 11 a of the cowling 11 is located diagonally forward and upward of the handle 4, but the wind is reduced from hitting the upper body 14 a of the rider 14,
It begins to flow above the head. In addition, transparent body 13
Since the upper edge 13a has a curved surface 13d that is concave with respect to the wind pressure surface, the wind effectively flows upward by the upper edge 13a of the transparent body 13.

［発明の効果］ 前記のように、この発明では、車体の前側を覆うカウ
リングと透明体に当たる風が凸形状の曲面により車体側
方から上方にわたり後方に向かって流れ、上方へ向かっ
て流れる風の一部が、段差部に形成された導風孔からそ
のまま上部縁部の裏側に沿って上方へ流れ、風がライダ
ーの上半身に当たることを軽減することができる。[Effects of the Invention] As described above, according to the present invention, the wind hitting the cowling and the transparent body covering the front side of the vehicle body flows upward from the vehicle body side to the rear by the convex curved surface, and the wind flowing upward. A part of the air flows upward from the air guide hole formed in the step portion along the back side of the upper edge as it is, so that the wind can be reduced from hitting the upper body of the rider.

また、上部縁部に当たる風は凹形状の曲面により上部
縁部で巻込まれる現象が生じなくなり、風は斜め後方で
上方に向かって高く流れ、上部縁部の裏側に沿って上方
へ流れる風と干渉することが少なくなり、風がライダー
の上半身に当たることを軽減することができる。In addition, the wind that hits the upper edge does not get caught in the upper edge due to the concave curved surface, and the wind flows high upward diagonally behind and interferes with the wind that flows upward along the back side of the upper edge. And the wind can be reduced from hitting the upper body of the rider.

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

第１図はこの発明を適用した自動二輪車の側面図、第２
図はカウリングの断面図、第３図はカウリングの正面図
である。 図面中、符号１は車体、４はハンドル、11はカウリン
グ、11aは風防部、13は透明体、13aは上部縁部、13bは
段差部、13cは上部裏側、15は導風孔である。FIG. 1 is a side view of a motorcycle to which the present invention is applied, and FIG.
The figure is a sectional view of the cowling, and FIG. 3 is a front view of the cowling. In the drawings, reference numeral 1 denotes a vehicle body, 4 denotes a handle, 11 denotes a cowling, 11a denotes a windshield, 13 denotes a transparent body, 13a denotes an upper edge portion, 13b denotes a stepped portion, 13c denotes an upper back side, and 15 denotes a ventilation hole.

フロントページの続き (56)参考文献 実開 昭59−54383（ＪＰ，Ｕ) 実開 昭62−105891（ＪＰ，Ｕ) 実開 平２−33794（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) B62J 17/02 B62J 17/00 Continuation of the front page (56) References JP-A-59-54383 (JP, U) JP-A-62-105891 (JP, U) JP-A-2-33794 (JP, U) (58) Fields surveyed (Int) .Cl. 7 , DB name) B62J 17/02 B62J 17/00

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項１】車体の前側から両側方を覆うカウリングを
備え、このカウリングに前照灯の窓部の上方位置には透
明体が設けられる自動二輪車の風防装置において、前記
透明体の上部縁部が車体前側へ段差部を設けて突出させ
て形成され、前記カウリングから前記透明体の段差部ま
では車体前側に突出する凸形状の曲面を有し、前記上部
縁部は車体後側に凹む凹形状の曲面を有し、前記段差部
に導風孔を形成したことを特徴とする自動二輪車の風防
装置。1. A windshield for a motorcycle, comprising: a cowling that covers both sides from the front side of a vehicle body, wherein the cowling is provided with a transparent body above a window of a headlight. Is formed by providing a stepped portion to the front side of the vehicle body and has a convex curved surface protruding forward from the cowling to the stepped portion of the transparent body from the cowling to the stepped portion of the transparent body, and the upper edge portion is recessed toward the rear side of the vehicle body. A windshield device for a motorcycle, comprising a curved surface having a shape, and a wind guide hole formed in the step portion.
JP2231926A 1990-08-31 1990-08-31 Motorcycle windshield Expired - Fee Related JP3038593B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2231926A JP3038593B2 (en) 1990-08-31 1990-08-31 Motorcycle windshield

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2231926A JP3038593B2 (en) 1990-08-31 1990-08-31 Motorcycle windshield

Publications (2)

Publication Number Publication Date
JPH04113980A JPH04113980A (en) 1992-04-15
JP3038593B2 true JP3038593B2 (en) 2000-05-08

Family

ID=16931230

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2231926A Expired - Fee Related JP3038593B2 (en) 1990-08-31 1990-08-31 Motorcycle windshield

Country Status (1)

Country Link
JP (1) JP3038593B2 (en)

Also Published As

Publication number Publication date
JPH04113980A (en) 1992-04-15

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