| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the problems wherein power transmission efficiency is low and accordingly the power transmission efficiency to a second product-returning conveyor is reduced because of the elongation of the belt in a construction of transmitting the power to the second product conveyor through a belt common with a first product conveyor, a winnower fan or the like. Ž<P>SOLUTION: The combine harvester 1 for carrying out threshing and selecting operation by the power from an engine part 70 is equipped with a feed chain 31 for conveying grain culms for threshing operation to the rear side of a machine body, a power transmission mechanism 95 for transmitting the power from the engine part 70 to the feed chain 31, a second product-returning conveyor 442 for conveying a second product after separation operation to the front side of the machine body, and a bevel gear 96 for transmitting the power from the engine 70 to the second product-returning conveyor 442. The second product-returning conveyor 442 is arranged at right or left one side of the machine body in combination with the feed chain 31, and the bevel gear 96 is constituted by being branched from the power transmission mechanism 95. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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