| 摘要 |
PROBLEM TO BE SOLVED: To provide a threshing housing which can surely engage an engaging concave portion disposed in a threshing chamber cover with an engaging convex portion disposed in a fixed member on the thresher frame side when turning the opened threshing chamber cover to the closed position. SOLUTION: When a threshing chamber cover 400 is rotated to the lower side (an arrow B1 side) on a pivot shaft 401 from a state that the upper opening of the thresher frame 41 is opened, the guide surface 404a of a rock arm 404 is engaged with an engaging convex portion 411a on the thresher frame 41 side during a closing movement of the threshing cover 400 to a closed position. Thus, a lock arm 404 is rotated to the other side (an arrow A2 side) around a rotation shaft against the energizing force of an energizing member 405, and the threshing cover 400 reaches a closing position. At that time, an engaging concave portion 404b is engaged with the engaging convex portion 411a to hold the threshing cover 400 at the closed position. COPYRIGHT: (C)2008,JPO&INPIT
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