| 摘要 |
PROBLEM TO BE SOLVED: To solve problems that the sliding contact resistance by a sliding means is large in the moving configuration of expansion/contraction of a vehicle body, the weight of a rear part of the vehicle body is large by a working device, etc., a large power is required for moving rear wheels, and smooth expansion/ contraction cannot be expected in an agricultural working vehicle having the configuration that the rear wheels are moved in the direction of contracting the distance between axles with respect to front wheels when the front wheel reaches close to a footpath in order to move the working device as close as possible to the footpath in order to save the work at the footpath (a butt work). SOLUTION: The pair of right and left front wheels 2 and 2 and the rear wheels 3 and 3 are provided on the front and rear parts of the vehicle body, the working device 7 is provided on the rear part of the vehicle body, and the distance between axles with respect to the rear wheels 3 is changed by a longitudinal oscillating means of the front wheels 2 in order to change the longitudinal distance between axles.
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