PROBLEM TO BE SOLVED: To enhance operation feeling at an initial stage of the start of an operation during a normal brake operation in a vehicular brake hydraulic pressure control device in which a suction valve interposed between a hydraulic pump and a master cylinder is opened/closed according to an operation of an intermediate piston interposed between the suction valve and a reservoir piston.SOLUTION: Repulsive means 75 includes a coiled first spring 76 which has a spring load smaller than a reservoir spring 33 and a coiled second spring 77 which has a spring load larger than the first spring 76 and smaller than the reservoir spring 33, and is configured to start an action of spring force by the second spring 77 on an intermediate piston 57 according to compression of the first spring 76 to a prescribed value or more during the movement of the intermediate piston 57 to a side where a suction valve is closed. The repulsive means is interposed between the reservoir piston 32 and the intermediate piston 57 and is stored in the reservoir piston 32.SELECTED DRAWING: Figure 4

    【課題】液圧ポンプおよびマスタシリンダ間に介設されるサクション弁が、サクション弁およびリザーバピストン間に介装される中間ピストンの作動に応じて開閉されるようにした車両用ブレーキ液圧制御装置において、通常のブレーキ操作時の操作開始初期の操作フィーリングを高める。【解決手段】リザーバスプリング33よりも小さなばね荷重のコイル状の第1スプリング76ならびに第1スプリング76よりも大きくかつリザーバスプリング33よりも小さなばね荷重のコイル状の第2スプリング77を有するとともにサクション弁を閉じる側への中間ピストン57の移動時に第1スプリング76が所定値以上圧縮されるのに応じて第2スプリング77によるばね力の中間ピストン57への作用が開始されるようにした弾発手段75が、リザーバピストン32および中間ピストン57間に介装されるようにしてリザーバピストン32内に収容される。【選択図】 図4


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    Title :

    VEHICULAR BRAKE HYDRAULIC PRESSURE CONTROL DEVICE


    Additional title:

    車両用ブレーキ液圧制御装置


    Contributors:

    Publication date :

    2016-07-11


    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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