A bicycle in which each of the two pedals (4) is mounted on a crank (5) with a lever arm which is variable during pedalling, the crank comprising a proximal portion (51) connected to the chainring and a distal portion (52) on which the pedal (4) is mounted, in which the distal portion (52) is pivoted (53) to the proximal portion, thus being able to extend away from the chainring, and an elastic return means (54) is provided which is located between said two crank portions and tends to counteract extension of the crank and draw the distal portion back towards the proximal portion.

    Bicyclette dans laquelle chacune des deux pédales (4) est montée sur une manivelle (5) avec un bras de levier qui est variable pendant le pédalage, la manivelle comprenant une partie proximale (51) reliée au plateau et une partie distale (52) sur laquelle la pédale (4) est montée, la partie distale (52) étant pivotée (53) vers la partie proximale, pouvant ainsi s'étendre à l'opposé du plateau, et un moyen de rappel élastique (54) étant disposé entre lesdites deux parties de manivelle et tendant à contrebalancer l'extension de la manivelle et à ramener la partie distale vers la partie proximale.


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    Title :

    BICYCLE WITH MODIFIED PEDALLING SYSTEM


    Additional title:

    BICYCLETTE AVEC SYSTÈME DE PÉDALAGE MODIFIÉ


    Contributors:

    Publication date :

    2024-01-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B62J Fahrrad- oder Motorradsättel oder -sitze , CYCLE SADDLES OR SEATS / B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer



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