CRAWLER TENSION ADJUSTING DEVICE OF CRAWLER TRAVELLING DEVICE FOR WORK VEHICLE

摘要

Provided is a work vehicle with improved turning performance of a steering operation structure and operability of a steering operation, wherein the steering operation structure contains a first pivot mechanism and a second pivot mechanism which contributes to a difference in speed on the right and left sides of a running device. The difference in unit speed by the first pivot mechanism (the second pivot mechanism) for the unit operation amount of a steering operation pipe (77) is set to be small in an area of a straight-ahead position (N) side of the steering operation pipe (77); and is set to be large in the area of a steering limit side of the steering operation pipe (77). The variation characteristics of the difference in unit speed in a first state and the variation characteristics of the difference in unit speed in a second state are set to be different.