To obtain a piston and a brake device with an improved new structure in which for example, a piston is easy to return from a pressing position to a non-pressing position.SOLUTION: A piston, for example, is integrally equipped with a first member that has a bottomed cylindrical shape opening in a first direction, and has a first peripheral wall and a bottom wall with an inside bottom surface made from a metallic material, and a second member that has a second peripheral wall for surrounding the periphery of the first peripheral wall, and has an outside seal surface sliding with an inside seal surface of an annular first seal member installed on an inner peripheral surface of a cylinder and made from a synthetic resin material.SELECTED DRAWING: Figure 2

    【課題】例えば、ピストンが押圧位置から非押圧位置へより戻りやすいなど、改善された新規な構成のピストンおよびブレーキ装置を得る。【解決手段】ピストンは、例えば、第一方向に開口した有底筒状の形状を有し、第一周壁と、金属材料で作られた内側底面を有した底壁と、を有した第一部材と、上記第一周壁の周囲を取り囲み、シリンダの内周面に装着される環状の第一シール部材の内側シール面と摺接する合成樹脂材料で作られた外側シール面を有した第二周壁、を有した第二部材と、を一体に備えている。【選択図】図2


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    Title :

    PISTON AND BRAKE DEVICE


    Additional title:

    ピストンおよびブレーキ装置


    Contributors:

    Publication date :

    2020-07-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    F16D COUPLINGS FOR TRANSMITTING ROTATION , Nicht schaltbare Kupplungen / B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF / F16J Kolben , PISTONS



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