| 摘要 |
PURPOSE:To improve the additional value by providing not only a gear shift mechanism, but also mechanisms such as a torque limiter mechanism, an operation clutch mechanism, and the like, at a power transmission shaft. CONSTITUTION:At a power transmission shaft which links a power delivery shaft 4 and an input shaft 2a, is provided a gear case in which reduction gear mechanisms, torque limiters, and clutches are installed. As a result, even though those mechanisms are not furnished to a self-propelled machine 1, farm area works depending on those mechanisms can be carried out. Consequently, the sorts of working machines which can be replaced and installed to the self-propelling machine 1 can be increased amazingly, and the additional value can be improved.
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