| 摘要 |
Vehicular tyre with a finely-incised tread; the incisions or grooves (3) surrounding islands (4) in the tread, the pattern being distributed around the circumference. As the depth from the tread surface increases, so do the islands, and the edge lengths of the surrounding grooves, increase in size. The islands may be cone- or frustrated cone shaped, over at least part of their radial extension, but alternatively shapes similar to pyramids or truncated pyramids could be employed. |
