A DEVICE FOR TRANSMITTING ROTATIONAL MOVEMENT FROM A FIRST AXLE TO A SECOND AXLE BY FRICTION BETWEEN ROTARY MEMBERS COMPRISING MEANS FOR AUTOMATIC CHANGE OF GEAR RATIO DEPENDENT ON ROTARY SPEED

摘要

The invention refers to a device for transferring a rotary movement from a first axle (10) to a second axle (20). The device includes a first transmission element (11), which is connected to the first axle (10) and arranged to rotate with the first axle, and a second transmission element (21), which is connected to the second axle (20) and arranged to rotate with the second axle. The first transmission element and the second transmission element have a respective substantially conical peripheral surface (12, 22). The transmission elements are arranged in such a way that the peripheral surface (12) of the first transmission element and the peripheral surface (22) of the first transmission element and the peripheral surface (22) of the second transmission element abut each ot6her for transferring the rotary movement between the transmission elements. The transmission elements are displaceable in relation to each other, whereby the transmission ratio between the rotary movements of the axles is variable.