| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an agricultural work vehicle having improved travelling performance and shifting operability.SOLUTION: The agricultural work vehicle includes a hydraulic shift mechanism 57 for shifting the power of an engine 2 mounted on a travelling vehicle 1, a planetary gear mechanism 83 for synthesizing unidirectional rotating force from the engine 2 and shifting output from the hydraulic shift mechanism 57, and a synthesized output shaft 84 to which output synthesized by the planetary gear mechanism 83 is transmitted as unidirectional rotating force. The unidirectional rotating force of the synthesized output shaft 84 is transmitted to a travel output shaft 63. The planetary gear mechanism 83 is configured so that the shifting output from the hydraulic shift mechanism 57 is changed from reverse rotation via zero into positive rotation to increase the speed of the output synthesized by the planetary gear mechanism 83 and the synthesized output shaft 84 is unidirectionally rotated at a maximum speed when the shifting output from the hydraulic shift mechanism 57 is set as positive-rotation maximum output.</p> |
