A bicycle crank assembly includes a crank arm and at least one sprocket. The sprocket includes a set of regular teeth and a set of first and second teeth. The first teeth have a first chain engaging tooth width for engaging outer links of a bicycle chain. The second teeth have a second chain engaging tooth width for engaging inner links of the bicycle chain. The first chain engaging tooth width is greater than the second chain engaging tooth width. The regular teeth have a third chain engaging tooth width being smaller than the first chain engaging tooth width. The regular teeth are disposed along at least one of top and bottom dead center areas with respect to the crank arm. The first and second teeth are disposed along at least between the top and bottom dead center areas with respect to the crank arm.


    Access

    Download


    Export, share and cite



    Title :

    Bicycle crank assembly


    Contributors:

    Publication date :

    2015-10-06


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer



    Bicycle crank arm and bicycle crank assembly

    YAMANAKA MASAHIRO / NISHIMOTO YUSUKE / NONOSHITA TETSU et al. | European Patent Office | 2016

    Free access

    Bicycle crank assembly

    TETSUKA TOSHIO | European Patent Office | 2017

    Free access

    BICYCLE CRANK ASSEMBLY

    EMURA ATSUHIRO / WATARAI ETSUYOSHI | European Patent Office | 2015

    Free access

    Bicycle crank assembly

    SCHLANGER RAPHAEL | European Patent Office | 2016

    Free access

    Bicycle crank assembly

    SHINTAROU MORI / MICHIHIRO KODAMA / FUMIAKI YOSHIDA et al. | European Patent Office | 2016

    Free access