Bicycle with a change-speed gear arrangement
OwnerArnold Metzingerinventor
Life of this patent
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Abstract
Described is a bicycle with a gear arrangement in which drive force is transmitted from the pedal crank spindle to the rear wheel by way of a direction-changing transmission and a multi-stage shiftable main transmission. A common shaft serves as the driven shaft of the direction-changing transmission and the drive shaft of the main transmission. The transmission housing can be arranged substantially within the rear wheel hub and project therefrom only at the side at which the drive arrangement is disposed. The transmission housing is preferably connected to the bicycle frame by means of a single-sided mounting swing arm.
Claims18
A bicycle containing a pedal crank spindle and a rear wheel, said bicycle having a change-speed gear arrangement and wherein the transmission of power from the pedal crank spindle to the rear wheel is by way of a first direction-changing transmission assembly operatively associated with a drive shaft and a second multi-stage shiftable main transmission assembly operatively associated with the drive shaft, and wherein a common shaft serves as the drive shaft of the first transmission assembly and as the drive shaft of the main transmission assembly and wherein the main transmission assembly is in the form of a spur gear-draw key shift arrangement.
Dependencies are inferred from the claim text.