Patent ID: 6371881
Filing Date: 2002-04-16
Classification: F16H

Abstract:
A continuously variable transmission system arranged in a housing, said transmission system comprising:an input axle receiving input power from a power source, whereby the position of the input axle is fixed with respect to said housing; an input gear fixed on said input axle and engaged with an intermediate gear which is concentrically fixed on an intermediate axle and which has radial slots; first and second axles crossing said radial slots with one end fixed to gears engaged with a ring gear which is fixed to said housing; a first spur gear and a second spur gear connected to the other end of the first and second axles via a first free wheel and a second free wheel; whereby said first and second axles are guided circumferentially in fixed grooved rings; whereby said first and second free wheels are arranged so as to work in opposite directions; whereby said first spur gear permanently engages a first transfer gear secured on a first transfer axle to transmit torque to one element of an epicyclic gear train; whereby said second spur gear permanently engages a second transfer gear secured on a second transfer axle to transmit torque to another element of said epicyclic gear train; an output axle permanently connected to a remaining element of said epicyclic gear train for receiving modified torque; whereby said first and second transfer axles are arranged concentrically to one another and are coaxial to said output axle; and a control lever connecting said input axle and said intermediate axle whereby a displacement of said control lever forces said first and second axles to displace along said radial slots thereby modifying the relative positions between said first and second axles and changing the axis of said intermediate axle from a coaxial position to an eccentric position with respect to said first and second transfer axles.