| 摘要 |
PROBLEM TO BE SOLVED: To solve a problem wherein grain straws can not be surely threshed in a threshing chamber, because various threshing teeth, planted in the outer diameter portion of a threshing cylinder supported pivotally in the threshing chamber for threshing the grain straws, are planted at substantially right angles with respect to the rotating direction of the threshing cylinder. SOLUTION: Threshing teeth 7c, or the like, planted in the outside-diameter portion of the threshing cylinder, supported pivotally in the threshing chamber 6 for threshing grain straws, are disposed in an attitude of being inclined at a prescribed angle to returning direction, and the mesh scales of a threshing chamber net are changed depending on the locations. The mesh scale of a waste straw-discharge net 9b of a discharged waste straw-treating chamber 8 is set to be the largest. COPYRIGHT: (C)2008,JPO&INPIT
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