Gearbox device for agricultural machines and related method

Abstract

A gearbox device for an agricultural machine includes: a primary shaft, a secondary shaft, at least one intermediate shaft, and a motion transmission element moveable between at least two operating positions in which it sets up intermeshing drive lines between the primary shaft and the secondary shaft with different gear ratios, at least one of the drive lines incorporating the intermediate shaft, the motion transmission element passing through at least one neutral position during its movement between the at least two aforementioned operating positions. The gearbox device further includes a manually-operated pivoting device that makes it possible to make at least one of the primary, secondary, and intermediate shafts pivot around its rotation axis when the motion transmission element is in the neutral position.

Dependencies are inferred from the claim text.