| 摘要 |
<p>An L-shaped digging tooth includes a shank (10) and a toe portion (20) projects laterally from one of its edges to that an angle of about 90 DEG +/- 30 DEG is defined between the general plane of the toe portion and plane of the shank. the shank and toe portion terminate in a common, continuous cutting edge (14, 22) of L or V-shaped configuration, which intersects at a leading cutter point (32), a free inner edge of the toe portion which extends along a line convergent with the shank portion plane. The tooth is hard-faced (at 28) over a zone adjacent the common leading edge. The invention further relates to an endless chain excavating assembly which includes the described L-shaped teeth arrayed in a specific sequence.</p> |
