| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve the steering performance of a working vehicle by solving the difficulty in an accurate operation of the working vehicle such as an agricultural tractor having a steering device capable of changing the steering angle of a front wheel relating to the steering amount of a steering handle to reduce the steering operation at the time of ridge edge turning during cultivation work, but having problem of damaging operating performance because a vehicle body is steered by an large amount if not accurately operated when necessary. <P>SOLUTION: A tractor is provided with a front wheel steered angle sensor 9 for detecting a steering angle. When the detected value of the sensor 9 shows the angle supposed as turning, the steering amount of steering wheels 4 and 4 to the operating amount of a steering handle 3 is increased by a steering device 5. <P>COPYRIGHT: (C)2004,JPO |
