| 摘要 |
Transmission group (10) for vehicles (11) comprising an engine (12) provided with at least one engaging device (17), arranged between transmission gears (15, 16) and mobile between a first rest position, wherein the transmission gears (15, 16) are mutually integral and both in mesh with a transmission shaft (14), and a second working position wherein the first gear (15) is in mesh with the transmission shaft (14) and the second gear (16) is unconstrained both with respect to the transmission shaft (14) and with respect to the gear (15), provided for being means for actuating of the engaging device (17), wherein the engine (12), an output gear (18) and an output shaft (13) are integrated in a first module fixed to the vehicle (11) and that the transmission shaft (14), the transmission gears (15, 16), the engaging device (17) and the actuating means thereof are integrated in a second module (31) independent and demountable with respect to the first module (30). |
