| 摘要 |
<P>PROBLEM TO BE SOLVED: To safely perform a high turning angle steering-interlock in steering to turn a tractor by steering-interlocking with a pivot case according to a traveling mode only when the turning angle of a steering wheel becomes the angle larger than a certain value, and by selectively using the steering with normal axle case in the case of smaller turning angle than that value to secure safety, since it is effective to increase the turning angle of the wheels in steering to turn on a ridge side or the like, but it is dangerous to increase the turning angle of the wheels in high-speed traveling in agricultural work with the tractor. <P>SOLUTION: The device is provided with the pivot case 4 having the axle case 3 steered through a power steering 2 on both ends of an axle housing 1 to steering-interlock the pivot case 4 at the larger turning angle of the steering wheel 5 than a certain value. <P>COPYRIGHT: (C)2004,JPO |
