| 摘要 |
PROBLEM TO BE SOLVED: To provide a traveling transmission gear for a working vehicle, capable of turning a machine body by a slow turn, a brake turn and an extra-pivotal turn and capable of being applied with parking brake even in a state where any one of the turns is selected. SOLUTION: When a shift gear 11 of an output shaft 7 is meshed with an input gear 13a of an intermediate transmission shaft 13, turning gears 19a, 19b are driven in the opposite direction to a straight travel transmission gear 9. When the shift gear 11 is meshed with the turning gears 19a, 19b, the turning gears 19a, 19b are driven at lower speed than the straight travel transmission gear 9. When traveling drive gears 30, 30b are connected to the straight travel transmission gear 9 by a steering clutch mechanism 20, traveling devices 34a, 34b are driven by the straight travel transmission gear 9. When the traveling drive gears 30, 30b are connected to the turning gears 19a, 19b by the steering clutch mechanism 20, the traveling devices 34a, 34b are driven by the turning gears 19a, 19b or braked by a turning brake 12 attached to the intermediate transmission shaft 13. A parking brake 60 is attached to the output shaft 7.
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