Gearshift device and associated mobility device

Abstract

A gearshift device for a mobility device includes a selection shaft in which there are housed a shuttle and a worm, three input pinions configured so as to turn freely around the selection shaft, and three output pinions that rotate as one with a hollow shaft. A gearshift actuator is arranged so as to displace the shuttle along the worm between three positions and to engage a selected gear ratio. The device includes at least a series of three pawls positioned one after another along the longitudinal axis of the selection shaft, each pawl being associated with a lifter device allowing the pawl to be lifted by the shuttle and engage the gear ratio selected via the input and output pinions.

Dependencies are inferred from the claim text.