| 摘要 |
<p>A rotary cutting head for pot hole repair comprises peripheral cutting teeth 25 and inner grinding teeth 26 for cutting a cylindrical hole around a pot hole. The cutting teeth cut a clean hole around the pot hole whilst the inner teeth grind out material in a substantially uniform manner when the cutting head is rotated. The cutting teeth are longer or the same length as the inner teeth. The inner teeth may be distributed across the cutting head in a non-linear manner and/or in a plurality of angular or radial positions and/or offset from each other. The grinding teeth may be angled in shaped. A vacuum may be provided for removing excavated material. An apparatus and vehicle carrying the head is claimed, as is a method of filling a pot hole and the resultant repaired pot hole.</p> |
