| 摘要 |
A blade for grading a shoulder of a road is pivotally mounted on an underbody grader blade which is advanced over the road by a vehicle. The grader blade is conventionally angled, for example, at about -30°, to a line perpendicular to the direction of travel so that material is forced by the grader blade toward the shoulder on one side of the road. The shoulder grading blade is mounted at a downward and forward angle relative to the grader blade so that the shoulder grading blade scrapes material from the shoulder onto the road and into the path of the grader blade. The grader blade then directs the material through the space between the grader blade and the shoulder blade to the shoulder and levels the material on the shoulder.
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