Electric Drive Device for a Bicycle and Bicycle Having Same

An electric drive device (1;

• 11;
• 21;
• 31) for a bicycle, comprising:
• a gear mechanism (4) arranged in a bottom bracket (3) of the bicycle and comprising at least one planetary gear set, wherein the planetary gear set comprises at least three rotary elements (12;
• SR, PT, HR) arranged so as to be rotatable relative to one another and configured for torque transmission;
• an electric motor (5) offset relative to the gear mechanism (4);
• a drive shaft (7;
• 7′) mounted at least on a pedal-crank shaft (6) of the bicycle;
• a drive wheel (8) arranged coaxially with the drive shaft (7;
• 7′) and configured to transmit motor power from the electric motor (5) to the drive shaft (7;
• 7′);
• a first freewheeling element (F1);
• and
• a second freewheeling element (F2),
• wherein the first freewheeling element (F1) and the second freewheeling element (F2) are arranged together in a one-piece freewheeling-element carrier (9),
• wherein the drive wheel (8) is connectable to the drive shaft (7;
• 7′) by the first freewheeling element (F1) via the one-piece freewheeling-element carrier (9),
• wherein one of the rotary elements (12;
• SR, PT, HR) of the planetary gear set of the gear mechanism (4) is connectable to the drive shaft (7;
• 7′) by the second freewheeling element (F2) via the one-piece freewheeling-element carrier (9), and
• wherein another of the rotary elements (12;
• SR, PT, HR) of the planetary gear set of the gear mechanism (4) is formed in one piece with a force-transmission device (7;
• 7′;
• 9) of the gear mechanism (4).