PROBLEM TO BE SOLVED: To provide a brake booster which inhibits a reaction disc from being caught in between an output shaft and a valve body to reduce failure of the brake booster.SOLUTION: A brake booster includes: an input shaft; an output shaft; a reaction disc which elastically deforms after a reaction force of the output shaft is transmitted thereto; a plunger which contacts with the elastically deformed reaction disc and transmits the reaction force to the input shaft; and a valve body which slidably holds the plunger therein. The output shaft has a recessed part at an end part which contacts with the reaction disc. The reaction disc has: a first portion positioned in the recessed part of the output shaft; and a second portion which contacts with the valve body on an outer peripheral surface in an airtight manner.SELECTED DRAWING: Figure 6

    【課題】出力軸とバルブボディとの間へのリアクションディスクの噛み込みを抑制して、ブレーキ倍力装置の故障を低減可能なブレーキ倍圧装置を提供する。【解決手段】ブレーキ倍力装置は、入力軸と、出力軸と、出力軸の反力が伝達されて弾性変形するリアクションディスクと、弾性変形したリアクションディスクに当接して反力を入力軸に伝達するプランジャと、内部にプランジャを摺動自在に保持するバルブボディとを備えたブレーキ倍力装置であって、出力軸は、リアクションディスクに当接する端部に凹部を有し、リアクションディスクは、出力軸の凹部内に位置する第1の部分と、外周面においてバルブボディに気密に接する第2の部分とを有する。【選択図】図6


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    Title :

    BRAKE BOOSTER


    Additional title:

    ブレーキ倍力装置


    Contributors:

    Publication date :

    2018-04-26


    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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