| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve cleaning efficiency without impairing cleaning performance of the cleaning device for a sieve. <P>SOLUTION: The problem is solved by a threshing unit 3 including a threshing chamber 11 incorporated with a threshing cylinder 10, and a sieve 23 reciprocatingly swinging in a back and forth direction for carrying out swinging selection of an object to be threshed leaked from the threshing chamber 11 and configures such that a first cleaning body 100 and a second cleaning body 200 for reciprocatingly swinging in a right and left direction on the sieve 23 are parallely arranged in a right and left direction of the sieve 23 so that the first cleaning body 100 is relatively positioned on a grain stalk contact starting side of the threshing cylinder 10 and the second cleaning body 200 is relatively positioned on a grain stalk contact finishing side if the threshing cylinder 10, and a speed of reciprocating swing of the second cleaning body 200 is faster than the speed of reciprocating swing of the first cleaning body 100. <P>COPYRIGHT: (C)2012,JPO&INPIT |
