| 摘要 |
An apparatus to be towed by an over-the-road transportation vehicle for smoothing of roadways or leveling and grading ground in other land areas. The apparatus is comprised of a frame (20) with integral blades (24) and side members (30). Running gear in the form of a pair of wheels (48) connected with an axle (50) are rotatably engaged to the frame and pivot radially over-center with a manually operated spring loaded fulcrum pivot lever (54). The wheels are, thereby raised above the blades for leveling and rotated below for ease of transportation. A yoke hitched coupler (66) provides attachment to the towing vehicle. This coupler (66) is rotatably connected to the frame (20) and swivels freely when being towed as a leveler providing proper draft and innerface between the frame (20) and the vehicle. For transportation, the coupler (66) is securely connected to the frame (20) making the entire apparatus rigid allowing towing over-the-road in trailer fashion. |
