| 摘要 |
PROBLEM TO BE SOLVED: To provide working machine support structure of a working vehicle capable of reducing stress generated on a welded part of a side plate and a screen board at the time when a thrust load works on a working machine and the working machine is displaced. SOLUTION: A base end part of a working machine is axially supported free to rotate by inserting and fitting the base end part of the working machine between a pair of side plates 14a, 14b erected in parallel separated from each other with a specified clearance on a frame and inserting a foot pin 16 in a pin hole 21 of a pair of the side plates and a pin hole 22 on the base end part of the working machine. In this case, the side plate or a reinforcing plate 17a, (17g) provided on an inside surface of the side plate and on a boss part in the neighbourhood of the pin hole 21 is formed so that a clearance S4, (S5) between the neighbourhood of a shaft center of the foot pin and the base end part of the working machine above it becomes larger than a clearance S2 below it.
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