To provide a suction duct structure for a motor bicycle, in which large steering of a handle is permitted and efficiency in introducing travel wind into an engine is improved.SOLUTION: A suction duct 10 for a motor bicycle disposes front forks 33 on both right and left sides of a head pipe 13 of a vehicle body frame 11, has a main frame 20 extending in an oblique, rearward, and downward direction from the head pipe 13, and extends toward the head pipe 13 from a vehicle front end. In the suction duct 10 for the motor bicycle, an interference portion 43 where a rotation locus and the suction duct 10 overlap during steering of the front forks 33 is formed so as to be elastically deformable.SELECTED DRAWING: Figure 5

    【課題】ハンドルの大操舵を許容し、かつ、走行風のエンジンへの導入効率を向上させた自動二輪車の吸気ダクト構造を提供する。【解決手段】自動二輪車の吸気ダクト10は、車体フレーム11のヘッドパイプ13の左右両側にフロントフォーク33を配し、ヘッドパイプ13から斜め後下方に延出するメインフレーム20を有し、車両前端部からヘッドパイプ13に向かって延びる自動二輪車の吸気ダクト10において、フロントフォーク33の操舵時における回動軌跡と吸気ダクト10とが重なり合う干渉部位43が弾性変形可能に形成される。【選択図】 図5


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    Title :

    SUCTION DUCT STRUCTURE FOR MOTOR BICYCLE


    Additional title:

    自動二輪車の吸気ダクト構造


    Contributors:

    Publication date :

    2020-06-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B62J Fahrrad- oder Motorradsättel oder -sitze , CYCLE SADDLES OR SEATS / B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer



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