| 摘要 |
PURPOSE:To operate a subsidiary speed change gear without a main clutch device when a hydraulic clutch speed change gear is located at a neutral position. CONSTITUTION:Hydraulic clutch shafts 2, 3, 4, 5 are disposed in the periphery of an input shaft 1. A main speed change gear for changing the speed of rotation of the input shaft 1 for forward and backward movement comprises hydraulic clutch devices 47-52 of the hydraulic clutch shafts 2, 3, 4, 5. A gear-slide subsidiary speed change gear is disposed between the fifth shaft and sixth shaft below the main speed change gear device, when the main speed change gear is located at a speed change neutral position, the gear-slide subsidiary speed change gear is adapted to change the speed. Accordingly, without operation of a main clutch device, if the main speed change gear is located at a neutral position, the subsidiary speed change gear can conduct speed change operation. |
