PROBLEM TO BE SOLVED: To provide a reservoir tank of a fluid-pressure master cylinder that allows a diaphragm to automatically return to an original shape after filling operating fluid thereinto while vacuuming a hydraulic path.SOLUTION: A diaphragm 9 has a rectangular-shaped external form and comprises a flange part 9a, a bellows part 9b and a plane part 9c. The bellows part 9b is formed in a concave-convex shape in which concave parts 9a and convex parts 9f are continuously provided, where the convex parts 9f have long side parts 9g, short side parts 9h and corner parts 9i. The long side parts 9g are formed so that outer side surfaces 9j and inner side surfaces 9k are parallel to a long side of the flange part 9a. The corner parts 9i are formed so that the outer side surfaces 9j protrude in an extension direction of the long side parts 9g. The short side parts 9h are formed in a curved shape so that the inner side surfaces 9k are parallel to short sides of the flange part 9a and the outer side surfaces 9j gradually approach the inner side surfaces, from the corner parts 9i toward a center part.SELECTED DRAWING: Figure 1

    【課題】油圧経路を真空引きしながら作動液を充填した後に、ダイヤフラムを元の形状に自動的に復帰させることができる液圧マスタシリンダのリザーバタンクを提供する。【解決手段】ダイヤフラム9は、長方形状の外形を有し、フランジ部9aと蛇腹部9bと平面部9cとを備える。蛇腹部9bは、凹状部9eと凸状部9fとを連続して設けた凹凸状に形成され、凸状部9fは、長辺部9gと短辺部9hと角部9iとを有する。長辺部9gは、外側面9jと内側面9kとがフランジ部9aの長辺と平行に形成され、角部9iは、外側面9jが長辺部9gの延長線方向に突出して形成され、短辺部9hは、内側面9kがフランジ部9aの短辺と平行に、外側面9jが、角部9iから中央部に向けて、漸次、内側面に近付く湾曲状に形成される。【選択図】 図1


    Access

    Download


    Export, share and cite



    Title :

    RESERVOIR TANK OF FLUID-PRESSURE MASTER CYLINDER


    Additional title:

    液圧マスタシリンダのリザーバタンク


    Contributors:

    Publication date :

    2017-08-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF / B62L BRAKES SPECIALLY ADAPTED FOR CYCLES , Bremsen, besonders für Fahrräder oder Motorräder ausgebildet



    RESERVOIR TANK OF FLUID-PRESSURE MASTER CYLINDER

    ITO TAISUKE / NAGAHARA JUNICHII / SAKAI TAKESHI | European Patent Office | 2017

    Free access

    RESERVOIR TANK OF HYDRAULIC MASTER CYLINDER

    NAGAHARA JUNICHII / SAKAI TAKESHI / UEHARA KAZUMA | European Patent Office | 2017

    Free access

    RESERVOIR TANK OF BRAKE MASTER CYLINDER

    European Patent Office | 2017

    Free access

    RESERVOIR TANK OF HYDRAULIC MASTER CYLINDER

    UEHARA KAZUMA / SAKAI TAKESHI / NAGAHARA JUNICHII | European Patent Office | 2017

    Free access

    Reservoir tank of brake master cylinder

    JEON SOO-YONG | European Patent Office | 2016

    Free access