| 摘要 |
PROBLEM TO BE SOLVED: To increase steering stability by suppressing a centrifugal force which is applied to an operator when a traveling device on the turning outside is accelerated while decelerating a traveling device on the turning inside. SOLUTION: A link mechanism L which accelerates/decelerates right and left traveling sections 1 in response to the operation of a steering wheel 9 is provided in a tractor T. In the tractor T, the link mechanism L is constituted by providing a decelerating link system L1 which proportionally decelerates the traveling section 1 on the turning inside in response to the turning operation of the steering wheel 9, and an accelerating link system L2 which accelerates the traveling section 1 on the turning outside. In addition, the link mechanism L is equipped with an acceleration limiting mechanism 43 which is connected with a travel gearshift lever 8, and at the same time, limits an acceleration amount of the traveling section 1 on the turning outside when the travel gearshift lever 8 is at a high speed zone. COPYRIGHT: (C)2006,JPO&NCIPI
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