Patent ID: 7207917

Claim:
Gear device, containing: two parallel paths ( 16 , 17 ; 38 , 39 ), of which one is disposed in a stationary manner and the other is mounted moveably, at least one planet wheel ( 9 , 40 ) which is disposed between the two paths ( 16 , 17 ; 38 , 39 , 56 ), is in operational connection at its circumference with the two paths ( 16 , 17 ; 38 , 39 , 56 ) and has a rotational axle ( 14 , 45 ), a bearing axle ( 10 , 30 , 44 ) which is moveable parallel to the two paths ( 16 , 17 ; 38 , 39 , 56 ) and coaxial with the rotational axle ( 14 , 45 ), about which bearing axle the planet wheel ( 9 , 40 ) is mounted rotatably, and a power transmission axle ( 12 , 46 ) which is disposed eccentrically on the bearing axle ( 10 , 30 , 44 ), the arrangement being such that the planet wheel ( 9 , 40 ) can transmit, by means of rolling on the path which is disposed in a stationary manner, both movements of the power transmission axle ( 12 , 46 ) to the moveably mounted path and conversely movements of the moveable path ( 17 , 39 , 56 ) to the power transmission axle ( 12 , 46 ), characterised in that the power transmission axle ( 12 , 46 ) is disposed with such a fixed prescribed spacing from the rotational axle ( 14 , 45 ) that preselected power transmission ratios are produced.