| 摘要 |
PROBLEM TO BE SOLVED: To perform an automatic steering suitable for running in a field and a road in a working machine having right and left side-clutches for engaging and disengaging a transmission to and from right and left rear wheels and an automatic steering means for disengaging and operating the side-clutch for the rear wheels on the inside of turning based on the steering operation of the front wheels beyond a set angle from the straight forward traveling attitude. SOLUTION: This working machine comprises a timing change means for changing the set angle of the automatically steered front wheels interlockingly with a gear shifting operation for a traveling speed. The timing change means is formed so as to increase the set angle in a low speed movement larger than that in a high speed movement. COPYRIGHT: (C)2003,JPO
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