| 摘要 |
PROBLEM TO BE SOLVED: To expand a lifting adjusting range by a rear pitching cylinder while avoiding strength reduction in a truck frame in a crawler traveling type work vehicle connecting the truck frame and a machine body frame via a pair of front and rear rocking links and having a front pitching cylinder for rocking, lifting and adjusting the front end side of the machine body frame by rockingly operating a front rocking link and the rear pitching cylinder for rocking, lifting and adjusting the rear end side of the machine body frame by rockingly operating a rear rocking link. SOLUTION: An interlocking adapter 24a is arranged between a cylinder side interlocking member 24 and a link side interlocking member 22 for interlocking the front rocking link 11 with the front pitching cylinder 31. The rear pitching cylinder 32 lifts and adjusts the rear end side of the machine body frame 6, and when the front. end side of the truck frame 13 abuts to a boss part 11a of the front rocking link 11, the truck frame 13 and the front rocking link 11 integrally rotate around the axis F1 to the machine body frame 6.
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