| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a reaping portion of a combine harvester, which can reduce vibrations and noises generated from the cutting device and stabilize grain culm-cutting performance. Ž<P>SOLUTION: The reaping portion of the combine harvester includes, in the cutting device 23, a plurality of disk-shaped cutting blades 231 for cutting the root sides of grain culms, one disk-shaped auxiliary cutting blade 232 having a smaller diameter than the diameters of the cutting blades 231 and used for cutting the root sides of grain culms, and an actuator 233 for rotating the plurality of the cutting blades 231 and the auxiliary cutting blade 232, wherein the plurality of the cutting blades 231 and the auxiliary cutting blade 232 are arranged on the approximately same straight line in the lateral direction. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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