| 摘要 |
PROBLEM TO BE SOLVED: To solve a problem that, because of the presence of a ridge-matching switch at a position enabling making a control without letting the operator's hand off a steering wheel, a manually inputting mechanism may be contacted by accident in making a turning operation of the steering wheel during traveling on the road, resulting in the traveling machine body's turning in an unexpected direction, in a combine harvester where the handle wheel part of a steering wheel is furnished with a steering switch for making a fine control of the advancing direction of the traveling machine body. SOLUTION: When a reaping part is at a non-reaping height level and a sub-gearshift lever is operated so as to choose a high-speed side traveling mode, a transverse operation of the steering switch is restricted (is not made to function) and the traveling machine body's fine turning is not performed. COPYRIGHT: (C)2008,JPO&INPIT
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