| 摘要 |
PURPOSE:To effect the most economical run of a vehicle, by decreasing the speed of the vehicle when the revolution speed of an engine falls due to the load upon the vehicle, by providing a transmission. CONSTITUTION:The transmission comprises a main clutch 7 wherein a primary clutch 8 is disengaged first through a clutch lever 11 and a secondary clutch 9 for a PTO system is then disengaged by depressing a clutch pedal, a primary and a secondary propeller shafts 12, 20 which are rotated by engaging the main clutch 7, and a first and a second transmission systems for transmitting the turning forces of the propeller shafts 12, 20 while changing the speeds. A speed reduction transmission member 35 is provided between the secondary propeller shaft 20 and the second transmission system. A transmission member 38 having a one- way clutch 45 for transmitting a turning force only to the primary propeller shaft 12 is provided behind the transmission member 35 and connected to the second transmission system through a clutch 47. |
