| 摘要 |
PROBLEM TO BE SOLVED: To provide a pretreatment driving mechanism of a combine harvester, performing smooth reaping harvest work by linking the pretreatment part carrying speed with the machine body traveling speed, nevertheless driving the pretreatment part and carrying and treating grain culm remaining in the pretreatment part even when the machine body is stopped. SOLUTION: The pretreatment driving mechanism of a combine harvester has a vehicle speed-synchronously driving means which links the carrying speed of the pretreatment part with the traveling speed of the machine body, stops the carrying of the pretreatment part when traveling is stopped and changes the carrying speed of the pretreatment part fast when the traveling speed is increased, wherein a constant speed driving means keeping the carrying speed of the pretreatment part regardless of machine body traveling speed is provided, an operating device and a setting device are set at an operation control part so that, when the operating device is operated to be ON, the pretreatment part is driven by the constant speed driving means at a constant carrying speed and, in a state in which the setting device is ON and machine body traveling is stopped, the pretreatment part is driven by the constant speed driving means at a constant carrying speed. COPYRIGHT: (C)2008,JPO&INPIT
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