A plane that contains a central axis of a worm shaft and that is orthogonal to a central axis of a worm wheel is arranged at a central position of the worm wheel in a tooth width direction thereof when no load is applied to a worm speed reducer. The worm wheel is formed by a cutting operation using a hob with a hob center offset from the central position toward an offset direction corresponding to a first direction along the tooth width direction. A pair of tooth flanks has different pressure angles at the central portion in the tooth width direction.


    Access

    Download


    Export, share and cite



    Title :

    Worm speed reducer and method for manufacturing worm wheel included in worm speed reducer


    Contributors:

    Publication date :

    2016-02-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge / F16H Getriebe , GEARING



    WORM SPEED REDUCER

    KAMEO KOHEI / NISHIKAWA SATOSHI / AOYAMA TAKESHI et al. | European Patent Office | 2021

    Free access

    WORM SPEED REDUCER

    HAMAKITA JUN / KIKUCHI ARATA | European Patent Office | 2017

    Free access

    WORM SPEED REDUCER

    MATSUMOTO SOTA | European Patent Office | 2019

    Free access

    WORM SPEED REDUCER

    NARUSAWA ASATO / MACHIDA SEIICHI / SHINODA KOSAKU et al. | European Patent Office | 2020

    Free access

    WORM SPEED REDUCER

    WATANABE MASASHIRO / HARADA KAZUYUKI / MURATA RYOTA et al. | European Patent Office | 2020

    Free access