Drive unit for a vehicle wheel

摘要

The drive unit (19) according to the invention for light vehicles, in particular bicycles, comprises a wheel unit (20) and a motor unit (21). The wheel unit (20) includes a gear ring (27) and at least one, preferably two support tracks (31, 35) on which the motor unit (21), which is movably supported but circumferentially fixed to the frame (11), runs. In this way, a wheel-support arrangement for the motor unit (21) is provided. As a result, also with extreme light-weight designs as used in connection with bicycles even in sport applications, a correct engagement between the wheel mounted gear ring (27) and drive pinion (45) is achieved.

主权项

1. Drive unit (19) for a vehicle wheel (16), comprising:
a gear ring (27) provided with a gear structure (28) and with wheel connecting means (23) for connection to the vehicle wheel (16); at least one guide profile (30) which is arranged concentrically with the gear ring (27); a motor carrier (39) which is provided with a support means (54) for connection to a vehicle frame (11); an electric motor (42) which is arranged on a motor carrier (39), a drive pinion (45) connected to the electric motor (42) so as to be driven, which has a gear structure (46) corresponding to the gear structure (28) of the gear ring (27) and which is in engagement with the gear ring (27) driving operation; and, at least one guide wheel (59) mounted on the motor carrier (39) and supported on the at least one guide profile (30) for supporting the drive unit (19) directly on the vehicle wheel (16).