Patent ID: 11926393
Assignee: CUCCHI GIOVANNI & C. S.R.L.
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A propulsion device for two-wheeled vehicles, comprising:
a bottom bracket, equipped with crank-arms and pedals, suitable for providing traction to a rear wheel for the manual advancement of said vehicle,
a first epicyclic gear reducer coupled to said bottom bracket, drivable by a first control device configured to vary the geometrical configuration of said first epicyclic gear reducer and therefore the gear ratio,
an assisted-pedalling-motor that is an electric motor interposed between said bottom bracket and said rear wheel, coupled to
a second epicyclic gear reducer, drivable by a second control device configured to vary the geometrical configuration of said second epicyclic gear reducer and therefore the relative gear ratio, said second epicyclic gear reducer being coupled and directly in contact with said rear wheel, in order to transmit motion from the propulsion device thereto.