PROBLEM TO BE SOLVED: To provide a negative-pressure assistor capable of adjusting reinforcement orientation particularly at the outer peripheral edge of a member.SOLUTION: At least one of one shell 21, the other shell 22, and a movable partition wall 3 is provided with: a radial center 313 formed on one annular end surface 311 on one side in an axial direction; and a plurality of projected parts 314 that project in the axial direction from one end surface 311. When seen from the axial direction, the projected parts 314 extend radially from the radial center 313, and at least one of the projected parts 314 has a bent part 314a or a linear part 314b that extends in a direction orthogonal to the radial direction and the peripheral direction of one end surface 311 at the end of at least one end surface 311 outside in the radial direction.SELECTED DRAWING: Figure 3

    【課題】特に部材の外周縁部において、強化の方向性を調整可能な負圧式倍力装置を提供する。【解決手段】本発明において、一方シェル21、他方シェル22、可動隔壁3の少なくとも1つは、軸方向の一方側の端面である環状の一方端面311に形成された放射中心部313と、一方端面311から軸方向に突出した複数の突出部314と、を備え、軸方向から見た場合において、複数の突出部314は、放射中心部313から放射状に延びており、複数の突出部314の少なくとも1つは、少なくとも一方端面311の径方向外側の端部において、一方端面311の径方向及び周方向に対して交差する方向に延びる曲線状部位314a又は直線状部位314bを有している。【選択図】図3


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    Title :

    NEGATIVE-PRESSURE ASSISTOR


    Additional title:

    負圧式倍力装置


    Contributors:

    Publication date :

    2017-11-02


    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



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