Abstract: The invention relates to a gearbox including a first shaft, a second shaft, an intermediate shaft transmitting the movement from the first shaft to the second shaft and a casing delimiting a chamber, the first shaft and the second shaft each extending at least partially outside the casing, the intermediate shaft being accommodated in the chamber and comprising a first gearing element cooperating with the first shaft and a second gearing element cooperating with the second shaft. The first shaft and the intermediate shaft are arranged at a first height, the second shaft being arranged at a second height lower than the first height, and the gearbox includes a splash tub containing a lubricant, the first gearing element being at least partially submerged in the splash tub.

Abstract: The invention relates to a gearbox including a first shaft, a second shaft, an intermediate shaft transmitting the movement from the first shaft to the second shaft and a casing delimiting a chamber, the first shaft and the second shaft each extending at least partially outside the casing, the intermediate shaft being accommodated in the chamber and comprising a first gearing element cooperating with the first shaft and a second gearing element cooperating with the second shaft. The first shaft and the intermediate shaft are arranged at a first height, the second shaft being arranged at a second height lower than the first height, and the gearbox includes a splash tub containing a lubricant, the first gearing element being at least partially submerged in the splash tub.

Abstract: The transmission device (1) comprises two power paths (8a, 8b) mounted in parallel, permanently connected to the upper shaft (2) of the engine (3) and the lower shaft (4) to control the differential (6). In each path (8a, 8b), each gear ratio Ia, IIa, IIIa or Ib, IIb, IIIb is obtained by activating a single activator capable of adapting the rotating speed between the two shafts 2 and 4 during gear ratio changes. A control device (17) synchronizes the activations/deactivations during gear ratio changes, whether the newly activated gear ratio is in the same path or a different path.

Abstract: The transmission device (1) comprises two power paths (8a, 8b) mounted in parallel, permanently connected to the upper shaft (2) of the engine (3) and the lower shaft (4) to control the differential (6). In each path (8a, 8b), each gear ratio Ia, IIa, IIIa or Ib, IIb, IIIb is obtained by activating a single activator capable of adapting the rotating speed between the two shafts 2 and 4 during gear ratio changes. A control device (17) synchronises the activations/deactivations during gear ratio changes, whether the newly activated gear ratio is in the same path or a different path.