Patent ID: 9597930
Date: 2017-03-21
CPC Classifications: B60C

Claim:
1. A tread for a pneumatic tire having at least one circumferential groove having a bottom portion and opposing walls, at least two ribs adjacent to the circumferential groove, and a plurality of groove fences formed within the abovementioned at least one circumferential groove such that the abovementioned circumferential groove is interrupted, wherein the abovementioned groove fences are formed extending from the bottom portion of the abovementioned circumferential groove in a direction perpendicular to the axis of rotation of the tire in such a way that there are gaps to the abovementioned walls, and at least 70% of the cross-sectional area of the abovementioned circumferential groove in which the abovementioned groove fences are formed is blocked, and in that the bending parameter of the groove fences which extend from the bottom portion of the abovementioned circumferential groove in a direction perpendicular to the axis of rotation of the tire, defined as where E is the modulus at 10% elongation of the material used for the abovementioned groove fences, I is the second moment of area of the abovementioned groove fence, h is the height of the abovementioned groove fence, and l is the width of the abovementioned groove fence, is at least equal to 250 Pa and at most equal to 350 Pa.