An object is to provide a master cylinder including an output piston and an input piston whose stroke is reduced with respect to a brake hydraulic pressure. A means for achieving the object is as follows. An input piston 22 connected to a brake pedal 26 and an output piston 24 which is moved forward to increase a hydraulic pressure in a pressure chamber 28 are fitted to each other telescopically, and an engaging spring 72 is provided between the input piston 22 and the pressure chamber 28. The output piston 24 is moved forward relative to the input piston 22 by a hydraulic pressure in a rear chamber 15 while compressing the engaging spring 72. Since a set load of the engaging spring 72 is set at a small value, the output piston 24 is moved forward relative to the input piston 22 in an initial period of a braking operation, making it possible to reduce a stroke of the input piston 22 which is required for a hydraulic pressure in brake cylinders 12FL, FR to reach a first set pressure.


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    Titel :

    マスタシリンダおよびマスタシリンダ装置


    Erscheinungsdatum :

    2016-06-01


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

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



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