| 摘要 |
PROBLEM TO BE SOLVED: To solve the problems of a conventional combine harvester whose classis to be assembled with heavy members such as a reaping section is formed from right and left machine frames and the like in a flat structure in an insufficient strength, especially whose rotation support for supporting the reaping frame of the reaping section at a point has an insufficient strength, and which therefore needs the addition of many reinforcing members and the improvements in the rigidity of various frames themselves such as thickening and strengthening treatments, thereby causing the increase in the weight of the machine and the enhancement in the costs of parts. SOLUTION: This combine harvester is characterized by disposing a step frame 38c in the front portion of one side of machine frames 19L, 19R, disposing the rotation supporting point 70 of the reaping section 22 on the other side, connecting the rotation supporting point 70 to the step frame 38c through a reinforcing frame 66, connecting a transmission case 36 approximately below the reinforcing frame 66 to the reinforcing frame 66 through a connection stay 69, connecting the rotation supporting point 70 to the support frames 54 of a cabin 34 through a connection frame 63, and further connecting the connection frame 63 to the reinforcing frame 66 to from a truss structure.
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