PROBLEM TO BE SOLVED: To provide a negative pressure type booster which achieves simplification of its structure and improves assemble workability.SOLUTION: A negative pressure type booster 100 includes: a hollow booster shell 110; a movable partition wall 120 which partitions the interior of the booster shell 110; and a tie rod bolt 114 which penetrates through the booster shell 110 and the movable partition wall 120 in an air-tight manner. The tie rod bolt 114 has a diameter expansion part 114a in which a diameter expands so as to face an inner surface 111b of the booster shell 110. The negative pressure type booster 100 includes an annular seal part 119 which is disposed between the inner surface 111b of the booster shell 110 and the diameter expansion part 114a of the tie rod bolt 114, is sandwiched between the inner surface 111b and the diameter expansion part 114a to plastically deform by fastening a master cylinder with a nut, and closely contacts with the inner surface 111b and the diameter expansion part 114a.SELECTED DRAWING: Figure 2

    【課題】構造を簡素化し、組付け作業性を良好とすることができる負圧式倍力装置を提供すること。【解決手段】負圧式倍力装置100は、中空状のブースタシェル110、ブースタシェル110の内部を区画する可動隔壁120、ブースタシェル110及び可動隔壁120を気密的に貫通するタイロッドボルト114を備える。タイロッドボルト114はブースタシェル110の内面111bと対向するように拡径された拡径部114aを有する。負圧式倍力装置100は、ブースタシェル110の内面111bとタイロッドボルト114の拡径部114aとの間に介装されていて、マスタシリンダのナット締結により内面111bと拡径部114aとに挟持されて塑性変形し、内面111bと拡径部114aとに密接する環状のシール部119を備える。【選択図】図2


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    Title :

    NEGATIVE PRESSURE TYPE BOOSTER


    Additional title:

    負圧式倍力装置


    Contributors:

    Publication date :

    2018-08-02


    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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