DEVICE FOR THE PROPULSION AND ECCENTRIC BRAKING OF A VEHICLE

摘要

A device for the propulsion and eccentric braking of a vehicle having a pedal drive, which includes a first shaft, a drive mechanism including one or a plurality of chain wheels, belt pulleys or elements of a Cardan drive, a second hollow shaft arranged concentrically about the first shaft mounted into a rear wheel, a freewheel clutch mounted between the first shaft and the drive mechanism, and an optionally engageable reverse gear mechanism mounted between the first and the second shaft. The first and the second shafts are connected to each other in a torsionally rigid manner when the reverse gear mechanism is in the engaged and disengaged state. The freewheel clutch prevents a rotation of the drive mechanism relative to the first shaft in a clockwise direction and is in a freewheeling state when the drive mechanism rotates in a counter-clockwise direction relative to the first shaft.

主权项

1. A device for the propulsion and eccentric braking of a vehicle having a pedal drive, comprising:
a first shaft having a longitudinal axis and drive means comprising one or more chain wheels, belt pulleys or elements of a cardan drive; a second shaft in the form of a hollow shaft arranged concentrically about the first shaft and which is mountable into a rear wheel of the vehicle; freewheel clutch which is mounted between the first shaft and the drive means; an optionally engageable and disengageable reverse gear mechanism which is mounted between the first and the second shaft, wherein an opposite rotation direction is generated between the first and the second shaft when the reverse gear mechanism is in the engaged state, and a rotation in the same direction is generated between the first and the second shaft when the reverse gear mechanism is in the disengaged state; and a switching device for engaging and disengaging the reverse gear mechanism; wherein the first shaft and the second shaft are connected to each other in a torsionally rigid manner in both directions of rotation when the reverse gear mechanism is in the engaged and the disengaged state.