PROBLEM TO BE SOLVED: To provide a negative-pressure type assistor which can achieve both of enhancement in a rigidity of a movable partition wall and suppression of lowering of responsibility.SOLUTION: A negative-pressure type assistor comprises: a housing 2 having one shell 21 and the other shell 22; a movable partition wall 3 which partitions the interior of the housing 2 into a negative-pressure chamber R1 and a transformation chamber R2; and a body part 4 which can perform communication and blockage between the transformation chamber R2 and ambient air. The other side portion 31Z of the movable partition wall 3 and one side portion 221Z of the other shell 22 are so located as to face each other thereby partitioning the transformation chamber R2, a salient 31y is formed on at least one of the other side portion 31Z of the movable partition wall 3 and one side portion 221Z of the other shell 22, a recess 221y, into which the salient 31y is inserted, is formed on a portion, which faces the salient 31y, of the other side portion 31Z of the movable partition wall 3 and one side portion 221Z of the other shell 22, and the recess 221y is formed into a shape along the salient 31y.SELECTED DRAWING: Figure 1

    【課題】可動隔壁の剛性の向上と応答性の低下の抑制を両立させることができる負圧式倍力装置を提供する。【解決手段】本発明は、一方シェル21及び他方シェル22を有するハウジング2と、ハウジング2内を負圧室R1と変圧室R2とに区画する可動隔壁3と、変圧室R2と大気との間を連通・遮断可能な本体部4と、を備え、可動隔壁3の他方側部位31Zと他方シェル22の一方側部位221Zは、互いに対向して配置されて変圧室R2を区画し、可動隔壁3の他方側部位31Z及び他方シェル22の一方側部位221Zの少なくとも一方には、凸部31yが形成され、可動隔壁3の他方側部位31Z及び他方シェル22の一方側部位221Zのうち凸部31yに対向する部位には、凸部31yが挿入される凹部221yが形成され、凹部221yは、凸部31yに沿った形状に形成されている。【選択図】図1


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    Title :

    NEGATIVE-PRESSURE TYPE ASSISTOR


    Additional title:

    負圧式倍力装置


    Contributors:
    INOUE YOJI (author)

    Publication date :

    2017-08-03


    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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