| 摘要 |
PROBLEM TO BE SOLVED: To remove sediment, etc. accumulated in a U-shaped groove beyond an obstacle while moving a revolving work vehicle along the obstacle such as a dike.SOLUTION: A base end portion of an arm-shaped work part is mounted on one of a right and left sides of a revolving superstructure arranged on a carrier part. In the state that the revolving superstructure is oriented in the longitudinal direction of the carrier part, a front end side and a middle portion of the work part can be offset to the outside and the front end side portion of the work part can be offset within a range starting from an outside edge portion of the carrier part on the offset side and having the horizontal width of the carrier part. |
