Internal combustion assist means for a bicycle

B - Operations – Transporting – 62 – M

Patent

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Details

B62M 23/02 (2010.01)

Patent

CA 2694405

Pedalling assist device for a lightweight vehicle, in particular a bicycle, equipped with pedals and with a gear change transmission, this device comprising an internal combustion engine (1; 101; 201) equipped with a reduction unit mechanically coupled to an element (26, 46; 146; 227) receiving muscular pedalling power from a user of the lightweight vehicle, the mechanical coupling taking place upstream of said gear change transmission such that the internal combustion engine benefits from said gear changes, characterized in that the reduction unit of the internal combustion engine comprises a first belt reduction stage (6; 286).

Dispositif d'assistance au pédalage pour engin léger, en paticulier vélo, équipé de pédales et d'une transmission à changement de rapports, ce dispositif comportant un moteur thermique (1;101;201) équipé d'un réducteur en couplage mécanique avec un élément (26, 46; 146; 227) recevant une puissance musculaire de pédalage d'un utilisateur de l'engin léger, le couplage mécanique s'effectuant en amont de ladite transmission à changement de rapports de manière à ce que le moteur thermique bénéficie desdits changements de rapports, caractérisé en ce que le réducteur du moteur thermique comporte un premier étage de réduction à courroie (6; 286).

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