PROBLEM TO BE SOLVED: To provide a brake device for a vehicle, which improves durability of a cup seal for use in a hydraulic master cylinder of a master cylinder unit.SOLUTION: A second hydraulic master cylinder 14 of a master cylinder unit 7 comprises a bottomed cylindrical cylinder hole 14b to which a pair of cup seals 17a and 17b are fitted, a plunger 15 that is inserted into the cylinder hole 14b, and a hydraulic chamber 20. A fluid pressure introduction hole 14d for introducing fluid pressure, which is generated in a first hydraulic master cylinder, into the hydraulic chamber 20 by a brake lever operation, and a union hole 14g for supplying the fluid pressure of the hydraulic chamber 20 to a first brake are formed in a cylinder body 14a.SELECTED DRAWING: Figure 1

    【課題】マスタシリンダユニットの液圧マスタシリンダに用いられるカップシールの耐久性を向上させた車両用ブレーキ装置を提供する。【解決手段】マスタシリンダユニット7の第2液圧マスタシリンダ14は、一対のカップシール17a,17bを嵌着した有底円筒状のシリンダ孔14bと、シリンダ孔14bに内挿されるプランジャ15と、液圧室20とを備えている。シリンダボディ14aに、ブレーキレバーの操作で第1液圧マスタシリンダで発生した液圧を液圧室20に導入する液圧導入孔14dと、液圧室20の液圧を第1ブレーキに供給するユニオン孔14gとを形成する【選択図】 図1


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    Title :

    BRAKE DEVICE FOR BAR HANDLE VEHICLE


    Additional title:

    バーハンドル車両用ブレーキ装置


    Contributors:

    Publication date :

    2016-03-22


    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 / B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF



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