To provide a worm reduction gear in which an outer ring constituting a rolling bearing can be effectively prevent from being displaced relative to a gear housing made of synthetic resin.SOLUTION: A worm reduction gear comprises: a gear housing 21; and a rolling bearing 19 that has an outer ring 35 serving as a stationary ring supported by the gear housing 21 and is used for rotatably supporting a worm wheel relative to the gear housing 21. The outer ring 35 has, in an outer periphery thereof, an outer ring recessed portion 44 serving as an outer ring engaging portion. The gear housing 21 is an injection molded product of synthetic resin and having the outer ring 35 as an insert component and has a housing projection 47 serving as a housing engagement portion that is engaged with the outer ring recessed portion 44 in such a manner that the gear housing 21 and the outer ring 35 are prevented from being displaced relative to each other in an axial direction and a circumferential direction of the outer ring 35.SELECTED DRAWING: Figure 4

    【課題】合成樹脂により構成されたギヤハウジングに対して転がり軸受を構成する外輪が変位することを有効に防止できるウォーム減速機を提供する。【解決手段】ウォーム減速機は、ギヤハウジング21と、ギヤハウジング21に支持された静止輪である外輪35を有し、ギヤハウジング21に対してウォームホイールを回転自在に支持するために用いられる、転がり軸受19とを備える。外輪35は、外周面に外輪係合部である外輪凹部44を有し、ギヤハウジング21は、外輪35をインサート部品とする合成樹脂の射出成形品であって、ギヤハウジング21と外輪35とが該外輪35の軸方向および周方向に関して相対変位することを阻止するように外輪凹部44と係合するハウジング係合部であるハウジング凸部47を有する。【選択図】図4


    Access

    Download


    Export, share and cite



    Title :

    WORM REDUCTION GEAR


    Additional title:

    ウォーム減速機


    Contributors:

    Publication date :

    2022-06-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge / F16C SHAFTS , Wellen



    WORM REDUCTION GEAR

    KANAI TOMOYUKI | European Patent Office | 2023

    Free access

    WORM REDUCTION GEAR

    SEGAWA TORU | European Patent Office | 2018

    Free access

    WORM REDUCTION GEAR

    SEGAWA TORU / MURATA RYOTA | European Patent Office | 2018

    Free access

    Worm reduction gear

    SEGAWA TORU | European Patent Office | 2020

    Free access

    WORM REDUCTION GEAR

    UEDA HIROFUMI / KAWAMURA HISASHI | European Patent Office | 2019

    Free access