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Shifting mechanism

 

 

This illustration shows the hub axle with its assembled clutch elements: Clutch ring (1), (2) and (3) together with sun gears 1(1) and 1(2). The middle sun gears 2(1) and 2(2) are not featured to reveal the state of the pawls.

The axle contains the shifting shaft, index mechanism, pawls 1(1), 2(1), 2(2) and 1(3) and the cam tracks for clutch rings 1 and 2. The corresponding sun gears are coupled to the axle by these pawls. The clutch rings shift the planetary gear assemblies (1), (2) or (3) respectively into direct drive (1:1).

Gears #1-7 are shifted with the first revolution of the shifting shaft. Clutch ring 3 shifts gear assembly #3 into its direct-drive gear during the shift from gear #7-8. Gears #8-14 are then shifted with the second revolution of the shifting shaft.