| 摘要 |
PROBLEM TO BE SOLVED: To suppress reduction of the contact area of traveling crawler due to a change to a forward ascending attitude or a forward descending attitude in forward or backward movement so as to secure traction force of the traveling crawler sufficiently and substantially reduce the possibility of slipping.SOLUTION: A work vehicle comprises right and left front wheels arranged under the front part of the traveling body, right and left truck frames 17 arranged under the rear part of the traveling body, traveling crawlers 25 mounted on individual truck frames through a drive wheel body 16 and front and rear follower wheel bodies 21 and 23 and a plurality of rolling wheels 26 and 261 arranged in the truck frames and supports the ground side of the traveling crawlers through the group of rolling wheels. Among the group of rolling wheels, the leading rolling wheel 26 and at least one rolling wheel other than the rearmost rolling wheel 26 support the ground side of the traveling crawlers vertically movably to the truck frame through a damper member 262 which presses toward the inner peripheral surface of the ground side of the traveling crawlers. |
