| 摘要 |
PROBLEM TO BE SOLVED: To realize a transmission to perform one selected from a low turn, a brake turn, and a swivel turn in the second operation position of a steering lever, and to reduce a cost as low as possible. SOLUTION: A transmission gear for a combine comprises a side gear 12 arranged at each of right and left crawlers 4, a first transmission gear 7 to transmit a forward rotation power for straight advance to the side gears 12; and a second transmission gear 9 to transmit a low speed forward rotation power or a reversing power by a turn transmission mechanism A. In the transmission gear for a combine, the side gears 12 are independent from each other operated between the transmission positions of the first and second transmission gears 7 and 9. A drive gear 11 is arranged in a manner to shift to a first transmission position directly engaged with the second transmission gear 9 and a second transmission position where the drive gear is engaged with an intermediate gear (a) engaged with the second transmission gear 9. Along with a shift to a third transmission position, a brake turn wherein the engagement part 38 of a transmission case 2 and the drive gear 11 are engaged throughout a whole periphery is carried out.
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