Described is an automatic transmission for bicycles, comprising a crankset (6) supporting a pair of pedal cranks and rotatably connected to the frame (3) of a bicycle (1 ) to rotate about a respective first central axis (A1 ), a pinion (8) integral with the rear wheel (5) of the bicycle (1 ), a flexible member (9) for transmitting the motion between the crankset (6) and the pinion (8), the crankset (6) comprising a plurality of first flexible transmission members (9), positioned angularly equidistant from each other to define a polygon approximating a winding circumference of the flexible transmission member (9).

    L'invention concerne une transmission automatique pour bicyclettes, comprenant un pédalier (6) supportant une paire de manivelles de pédale et relié rotatif au cadre (3) d'une bicyclette (1) pour tourner autour d'un premier axe central respectif (A1), un pignon (8) solidaire de la roue arrière (5) de la bicyclette (1), un organe flexible (9) pour transmettre le mouvement entre le pédalier (6) et le pignon (8), le pédalier (6) comprenant une pluralité de premiers éléments de transmission flexibles (9), positionnés angulairement à équidistance les uns des autres pour définir un polygone se rapprochant d'une circonférence d'enroulement de l'élément de transmission flexible (9).


    Access

    Download


    Export, share and cite



    Title :

    AUTOMATIC TRANSMISSION FOR BICYCLES


    Additional title:

    TRANSMISSION AUTOMATIQUE POUR BICYCLETTES


    Contributors:

    Publication date :

    2018-10-04


    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



    An automatic transmission for bicycles: a simulation

    Chien, Huai-Ching / Tseng, Ching-Huan | Tema Archive | 2004


    TRANSMISSION FOR BICYCLES

    SO YOUN SEO | European Patent Office | 2016

    Free access

    Automatic pedal for bicycles

    MORELLI ANGELO | European Patent Office | 2017

    Free access

    Automatic inflation device for bicycles

    TANG YUNJUN | European Patent Office | 2015

    Free access

    Continuously variable transmission for bicycles

    FU XINYAO | European Patent Office | 2015

    Free access