| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem on a conventional combine which performs mild and continuous turning in each of turning modes during reaping work that it may be out of a reaping line to cause troubles in work because of its steering control being difficult of prompt action during straight movement. SOLUTION: This turning control device for a combine which performs turning operation in linkage with the tilting operation of a power steering lever 1 to the right and left sides comprises a position sensor 3 and right and left sensor switches 4 provided at proper positions on the power steering lever 1 for detecting the tilting control input of the lever 1 and outputting variable braking force to a travel driving wheel 2 on an turning inside and for outputting constant braking force to the travel driving wheel 2 on the turning inside when turned on by the preset-angle tilting operation of the lever 1, respectively. The switches 4 and the sensor 3 are used during reaping work and during non- reaping work, respectively. Selecting means 5 is provided on the lever 1 or its vicinity for selecting the sensor 3 or the switches 4.
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