| 摘要 |
The invention relates to a tyre for a commercial vehicle of a radial type of construction, comprising a tread (1) with circumferential grooves (7) at the shoulders, each delimiting on the inner side of the tread a profile rib (9) at a shoulder, and with at least two middle circumferential grooves (8) in the region of the tread between the circumferential grooves (7) at the shoulders, wherein each circumferential groove (7) at a shoulder has an average depth (T1) and an average width (B1), measured at a depth determined in the radial direction of 4.5 mm, and each middle circumferential groove (8) has an average depth (T2, T2', T2'') deviating from the average depth (T1) of the circumferential groove (7) at a shoulder and also an average width (B2), which is likewise measured at a depth determined in the radial direction of 4.5 mm and is smaller than the average width (B1) of each circumferential groove (7) at a shoulder. The average depth (T1) of each circumferential groove (7) at a shoulder is less than the average depth (T2, T2', T2'') of the middle circumferential groove(s) (8) with the greatest average depth (T2, T2', T2''), wherein the average width (B1) of each circumferential groove (7) at a shoulder corresponds at least to twice the average width (B2, B2', B2'') of the middle circumferential groove (8) that has the greatest average width (B2, B2', B2'') of all the middle circumferential grooves (8), and/or the groove void volume (V1) of each circumferential groove (7) at a shoulder corresponds to at least twice the groove void volume (V2) of the middle circumferential groove (8) with the greatest groove void volume (V2). |
