| 摘要 |
<p>A soil ripping tooth assembly is pivotally mounted for vertical movement within a horizontally disposed downwardly and forwardly open box frame having a drawbar and drawn by a prime mover having a hydraulic fluid supply system. A scraping blade is connected in depending relation with the rearward wall of the box frame for collecting soil within the confines of the box frame. A pair of wheels, journalled by stub axles, connected with a weight support frame in turn pivoting connected to the rearward side of the box frame, supports the box frame and ripper tooth assembly in combination with the drawbar. A plurality of hydraulic cylinders, mounted on the box frame and respectively connected with the drawbar, ripper tooth assembly and weight supporting frame, selectively tilt the ripper tooth assembly and respective sides and ends of the box frame toward and away from the surface of the earth in a soil collecting and distributing action.</p> |
