| 摘要 |
The tread (1) of a tyre comprising a plurality of grooves (2) opening out onto a tread surface (11), wherein each groove (2) has an average orientation and is defined by opposite walls, said walls are joined by means of a groove bottom, each groove is geometrically defined by a transversal profile (21) obtained by cutting said groove (2) on a cutting plane which is essentially transversal with respect to the average direction of the groove, the transversal profile of a plurality of grooves has variable curves, the variation of said curves on the cutting plane being mathematical. Tyre provided with said tread.
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