Patent ID: 6931997

Claim:
Apparatus for driving railway vehicles with a rotor device ( 3 , 4 ) of an induction machine having a solid motor shaft ( 4 ), a transmission shaft ( 6 ), a transmission device, and a coupling device ( 9 ) between the rotor device ( 3 , 4 ) and the transmission shaft ( 6 ), characterized in that the coupling device ( 9 ) is a curved teeth coupling with a first coupling section ( 10 ) with internal tooth system and a second coupling section ( 11 ) with external tooth system, and wherein the first coupling section ( 10 ) is securely connected with the shaft ( 6 ), and the second coupling section ( 11 ) is securely connected with the motor shaft ( 4 ), or the first coupling section ( 10 ) is securely connected with the motor shaft ( 4 ), and the second coupling section ( 11 ) is securely connected with the transmission shaft ( 6 ), and wherein the rotor device ( 3 , 4 ) is supported only on the coupling-distal side in a bearing ( 5 ).