| 摘要 |
PROBLEM TO BE SOLVED: To smooth out operational harshness in a turning structure for a working vehicle having operating means for automatically driving a center-of- turning side one of a right-left pair of rear-wheel side brakes into the braking side during a turn and checking means switchable between an operating state where it allows operation of the operating means and a stopping state where it checks the operation, when the checking means are driven into the stopping state upon an upshift. SOLUTION: A first and a second operating member 26 and 32 are swung upon a shift of a first and a second transmission for travel. An inner element 33a of a release wire 33 is connected to the swing end of the first operating member 26, and an outer element 33b thereof is connected to the swing end of the second operating member 32. When at least either of the first and second transmissions is in the low-speed position, the inner element 33a is driven in a push-pull manner to the operating state side of checking means. When both first and second transmissions are in the high-speed position, the inner element 33a is forced in a push-pull manner to the stopping state side of the checking means.
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