PNEUMATIC TIRE WITH IMPROVED GRIP FORCE AND RIDE COMFORT IN LAST PERIOD OF ABRASION

摘要

PURPOSE: A tire prevents ride comfort, driving performance and braking performance from falling even when a tread part reaches the middle or last period of abrasion to extend endurance period thereof. CONSTITUTION: The depths of kerfs(11, 12) are different on the left side and the right side of a central line(C) of a tire. The depth(D1) of the kerf(11) on the left side(A) which is placed on the inner side of a car is formed to be equal to the depth(D) of grooves(20) formed on a tread(10). The depth(D2) of the kerf(12) on the right side(B) which is placed on the outer side of the car is formed to be under 50% of the depth(D) of the grooves(20).