Patent ID: 6102092
Filing Date: 2000-08-15
Classification: B60C,Y10S

Abstract:
A radial pneumatic vehicle tire having a tread portion comprising:(a) a plurality of axially spaced apart essentially circumferential grooves having a depth h in the tread portion of the tire, and(b) at least one rib formed by the land portion between two of said circumferential grooves, and(c) a plurality of narrow transverse grooves having a depth h.sub.1 not exceeding the depth h of said circumferential grooves and arranged at circumferential intervals on a at least one of said ribs, wherein adjacent pairs of said transverse grooves define first land portions having a circumferential length L.sub.1 circumferentially adjacent to second land portions having a circumferential length L.sub.2, the ratio of the length L.sub.2 of said second land portion to the length L.sub.1 of said first land portion is such that 0.25.ltorsim.L.sub.2 /L.sub.1 .ltorsim.0.50, and(d) said second land portion is offset radially inward from said first land portion a distance d.