To provide a liquid pressure generator that can simplify work for assembling a driving transmission mechanism and suppress component costs of the driving transmission mechanism.SOLUTION: The liquid pressure generator comprises a driving transmission mechanism 30 that converts rotary driving force of a motor to force for pushing a piston. The driving transmission mechanism 30 comprises a ball screw mechanism provided between a rod 31 and a nut member 32, and a driven-side pulley 40 (a rotating body). A key member 45 is inserted into a first groove 32a of the nut member 32 and a second key groove 42 of the driven-side pulley 40. Both key grooves 32a and 42 are blocked with a clip 43 assembled into the nut member 32. The driven-side pulley 40 is provided with a positioning part 46A that positions the clip 43. The positioning part 46A comprises a dented part 47a having an outer peripheral part of the clip 43 penetrated thereinto and a recessed part 47b having both end parts of the clip 43 penetrated thereinto.SELECTED DRAWING: Figure 3

    【課題】駆動伝達機構の組立作業を簡略化するとともに、駆動伝達機構の部品コストを抑えることができる液圧発生装置を提供する。【解決手段】液圧発生装置であって、モータの回転駆動力をピストンを押す力に変換する駆動伝達機構30を備えている。駆動伝達機構30は、ロッド31とナット部材32との間に設けられたボールねじ機構と、従動側プーリー40(回転体)と、を備えている。ナット部材32の第一キー溝32aおよび従動側プーリー40の第二キー溝42にキー部材45が挿入されている。ナット部材32に組み付けたクリップ43によって両キー溝32a,42が塞がれている。従動側プーリー40にはクリップ43を位置決めする位置決め部46Aが設けられている。位置決め部46Aは、クリップ43の外周部が入り込んだ窪み部47aと、クリップ43の両端部が入り込んだ凹部47bと、を備えている。【選択図】図3


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    Title :

    LIQUID PRESSURE GENERATOR


    Additional title:

    液圧発生装置


    Contributors:

    Publication date :

    2022-04-11


    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 / F16D COUPLINGS FOR TRANSMITTING ROTATION , Nicht schaltbare Kupplungen / F16H Getriebe , GEARING



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