| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent a reduction of cutting performance caused by accumulation of waste cereal stems and mud soil upward on a cutting blade. <P>SOLUTION: The cutting blades 10 of a reaping device 4 is constituted of a lower blade 21 installed to a frame 20 of the reaping device 4 in a fixed state and reciprocally and slidingly moving upper blades 22 on left and right sides, a central lower blade unit 23 in the laterally central position out of the lower blade 21 is formed larger than other lower blade units 24 of the lower blade 21, and the left and right upper blades 22 are dividedly formed to comprise a left side upper blade 22A locating on the left side and a right side upper blade 22B locating on the right side based on the central lower blade unit 23. On the upper side of the upper blades 22, cutting blade-holding members 26 are installed to be plural with a predetermined distance in the sliding direction of the upper blades 22, and the cutting blade-holding members 26 fix fixing units 27 of base parts of the cutting blade holding members 26 to the side of the frame 20. Plate parts 29 fixed to the top parts of the cutting blade holding members 26 are constituted to face the upper surfaces of the upper blades 22, and out of a plurality of the cutting blade holding members 26, the plate parts 29 of the cutting blade-holding members 26A on both the left and right sides of the central lower cutting blade unit 23 are brought to mutually approach to face on the central lower blade unit 23. <P>COPYRIGHT: (C)2012,JPO&INPIT |
