| 摘要 |
PROBLEM TO BE SOLVED: To carry out an improvement, etc., in an automatic steering function by changing speeds of both left and right traveling crawlers (2) and smoothly performing automatic steering operations. SOLUTION: This combine harvester is obtained by installing a steering actuator (106) for operating a steering member (28) based on results of detection with steering sensors (110) and (111) for detecting rows of unreaped grain culms in the combine harvester having a speed changing member (25) for driving the left and right traveling crawlers (2) in the same direction and the steering member 28 for driving the left and right traveling crawlers (2) in the opposite directions and connected to a left and right axles (36) for driving the left and right traveling crawlers (2).
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