To provide a fluid pressure master cylinder device for a handlebar vehicle which can inhibit buckling of a spring member which biases a control lever in an action direction, stabilize a posture of the spring member during operation, and achieve improvement of durability of the spring member.SOLUTION: A control lever 5 is rotatably attached to a lever holder 4d formed at a cylinder body 4a of a fluid pressure master cylinder 4 through a first pivot 19. A spring member 22 which biases the control lever 5 in an action direction in which the piston 10 is operated is provided between the control lever 5 at the vehicle body front side relative to the first pivot 19 and the cylinder body 4a. The spring member 22 is disposed curved in a direction such that a longitudinal intermediate part protrudes to the radial outer side of the first pivot 19.SELECTED DRAWING: Figure 1

    【課題】操作レバーを作用方向へ付勢するスプリング部材の座屈を抑制するとともに、作動時のスプリング部材の姿勢を安定させることができ、且つ、スプリング部材の耐久性の向上を図ることができるバーハンドル車両用液圧マスタシリンダ装置を提供する。【解決手段】液圧マスタシリンダ4のシリンダボディ4aに形成されたレバーホルダ4dに、操作レバー5を第1ピボット19を介して回動可能に取り付ける。第1ピボット19よりも車体前方側の操作レバー5とシリンダボディ4aとの間に、操作レバー5を、ピストン10を作動させる作用方向へ付勢するスプリング部材22を設ける。スプリング部材22は、長手方向中間部が、第1ピボット19の半径方向外側に向けて凸となる方向に湾曲して配置される。【選択図】図1


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    Title :

    FLUID PRESSURE MASTER CYLINDER DEVICE FOR HANDLEBAR VEHICLE


    Additional title:

    バーハンドル車両用液圧マスタシリンダ装置


    Contributors:

    Publication date :

    2019-12-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B62L BRAKES SPECIALLY ADAPTED FOR CYCLES , Bremsen, besonders für Fahrräder oder Motorräder ausgebildet



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