| 摘要 |
<p>The tire tread and the lamella for fixing into a vulcanization form for forming a lamellar cut in the pattern block of the tire tread, wherein the lamellar cut in a pattern block of a tire tread contains in both opposing surfaces three (OA, AB BC) radially arranged axial rows of projections alternately arranged with the depressions in axial and radial directions, into which the projections of the opposite cut surface fits; each projection of the first row adjacent to the tread surface contains two inclined side surfaces, an inclined bottom surface, and a front surface which is parallel with the main plane of the lamella; each projection of the second row arranged radially below the first row contains two inclined side surfaces, a top and a bottom inclined surface (11, 12) and a sloped front surface (15; 16); each projection of the third row arranged radially below the second row contains two inclined side surfaces, a top inclined surface and a sloped front surface; the two planes tangent tangent to the front surfaces of the second and third row and to the bottom edge of the front plane of the first row of the projections form a V, which planes are defined by the front plane of the projections of the right side of the pattern block and the plane defined by the front plane of the projections of the left side of the block.</p> |
