To provide a continuously variable speed travel control device of a combined harvester capable of stable and efficient travel by proper acceleration without requiring troublesome adjusting operation corresponding to a load on a main shift lever.
The continuously variable speed travel control device of the combined harvester includes a vehicle speed indicating means 1a for controlling a continuously variable speed mechanism by a shift characteristic of continuously simply increasing a speed up to the highest speed from a stopping speed according to an operation position of the main shift lever, and is constituted so as to change the shift characteristic up to a predetermined intermediate operation position P1 of the main shift lever according to an engine speed of an engine.
Maki Reiko
Kimio Kikutani
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