| 摘要 |
<p>A locking mechanism for releasably securing earth excavation teeth on a trenching machine. The assembly includes a nose piece carried by the bucket of the earth excavation equipment, a digging point which fits about and is carried by the nose piece and a compressible locking assembly having a steel projecting portion. The locking assembly is disposed in a chamber in the lower surface of the nose piece with the projecting portion extending therefrom and into an aperture extending through the lower surface of the point and communicating with the chamber in the nose piece. To remove the point from the nose piece, a tool is provided which engages the point and the projecting portion of the locking assembly such that upon forcing the tool against the projecting portion of the locking assembly, the locking assembly is compressed and the projecting portion thereof is urged downwardly in the chamber while the point is driven forwardly thereover and off the nose piece.</p> |
