| 摘要 |
PROBLEM TO BE SOLVED: To prevent waste straw from being twined about the edge erecting part of a scraper and an entrance wheel case. SOLUTION: The planar scraper 3 fitted to a threshing cylinder 2 is formed from a hanging part 3a and a bending part 3b and the bending part 3b is superposed on the edge erecting part 5a of the entrance wheel case 5 which is fixed at the entrance side of a threshing room. The operation edge of the hanging part 3a at the advance side in a rotary direction in the scraper 3 is formed in an diagonal edge 6 provided with an escaping angleαby front side viewing and the operation edge of the bending part 3b is formed in the escaping edge 7 which is continuously provided with retiring angles in the diagonal edge 6. One scraper 3 is adequate but the plural ones can be fitted. More effects are obtained by executing blade-fitting in the diagonal edge 6 and the escaping edge 7.
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