| 摘要 |
PROBLEM TO BE SOLVED: To provide a threshing device equipped with a conveying device for returning secondary recovery materials recovered in a second recovering part to a threshing chamber by rationally constituting a preliminary selecting mechanism capable of effectively performing the preliminary selection of the secondary recovered materials. SOLUTION: This threshing device equipped with the conveying device 4 for returning the secondary recovered materials recovered in the second recovering part to the threshing chamber A is constituted by protruding a discharging passage 26 in an inclined outward conveying direction against the conveying direction of the secondary recovered materials in an outer tube 29 constituting the conveying device 4, and installing an opening 27 for discharging straw dust, at the discharging passage 26. COPYRIGHT: (C)2005,JPO&NCIPI
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