| 摘要 |
PROBLEM TO BE SOLVED: To provide a tractor equipped with a mechanical position control mechanism which does not require the addition of a sensor to largely reduce the cost, when achieving an implement-lifting position adjustment mechanism with a lifting or lowering switch. SOLUTION: In the tractor wherein a lifting or lowering switch control means for lifting or lowering an implement to a prescribed lifted position or a lowered position by driving and controlling an electric motor 25 according to the operation of a lifting or lowering switch lever 23 is disposed at a control device, the lifting or lowering switch control means specifies the position of a motor operation member 24 on the basis of a pulse output from the electric motor 25; the motor operation member 24 is operated to a specific prescribed position on the lifting side on the basis of the output pulse of the electric motor 25, when the motor operation member 24 is operated on the lifting side according to the lifting operation of the lifting or lowering switch lever 23; and the pulse number for determining a prescribed position on the lifting side can arbitrarily be set with an upper limit setting volume 29. COPYRIGHT: (C)2011,JPO&INPIT
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