Transmission unit for snowplow comprises input shaft meshing with toothed wheels coupled to forward or rear movement drive shafts by means of clutch devices and transmitted to output shaft

摘要

The transmission unit comprises a rotating input shaft (1) meshing with a toothed wheels (2A,2B). The counter-rotating wheels are coupled to the snowplow forward or rear movement drive shaft (3A,3B) by means of clutch devices (4A,4B). The clutch devices are selectively activated as a function of the position taken by an angularly displaceable part (5,7) of the clutch control device. The movement of each shaft carrier of the clutch device being, in the active state of its clutch device, transmitted to an output shaft (6). An Independent claim is included for a snowplow fitted with the transmission unit.