US 11,655,004 B2
Multi-speed rear drive for a bicycle
Brian Jordan, Highland Park, IL (US)
Assigned to World Bicycle Relief, NFP, Chicago, IL (US)
Filed by World Bicycle Relief, NFP, Chicago, IL (US)
Filed on Aug. 4, 2021, as Appl. No. 17/394,050.
Claims priority of provisional application 63/063,672, filed on Aug. 10, 2020.
Prior Publication US 2022/0041248 A1, Feb. 10, 2022
Int. Cl. B62M 25/06 (2006.01); B62M 9/04 (2006.01); B62M 9/10 (2006.01); B62M 9/00 (2006.01)
CPC B62M 25/06 (2013.01) [B62M 9/00 (2013.01); B62M 9/04 (2013.01); B62M 9/10 (2013.01); B62M 9/105 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A multi-speed transmission for a bicycle wheel hub, comprising:
a driver to be arranged on a longitudinal axis of the bicycle wheel hub, the driver including a groove and a plurality of drive teeth; and
a multi-speed freewheel arranged on the longitudinal axis of the bicycle wheel hub, the multi-speed freewheel comprising:
a first sprocket to be connected to a first pedal drive sprocket of a bicycle;
a second sprocket to be connected to a second pedal drive sprocket of the bicycle,
a plurality of pawls arranged radially on the second sprocket to engage with the drive teeth when a pedal shaft is rotated in a non-drive direction a non-drive direction for a predetermined rotation,
a plurality of bias elements arranged radially within an interior area of the second sprocket to bias the plurality of pawls toward the drive teeth, and
a shift ring arranged within the interior area of the second sprocket to selectively block engagement of the plurality of pawls with the drive teeth.