| 摘要 |
FIELD: motor industry.SUBSTANCE: tyre comprises a tread section, having a tread surface, in which a part of the tread section surface has semi-spherical ledges so that the surface has an irregularity with the maximum length A of the irregularity motive from 5 mcm to 100 mcm. The die mould comprises a shaping surface to shape the tyre tread surface, in which a part of the tread surface shaping surface has semi-spherical grooves of the tyre tread surface.EFFECT: improved characteristics of a tyre for motion on ice and snow.2 cl, 2 tbl, 12 dwg |
