Patent ID: 6276418
Filing Date: 2001-08-21
Classification: B60C,Y10T

Abstract:
A pneumatic radial tire comprising three carcass layers including a first carcass layer, a second carcass layer and a third carcass layer enumerated from an inner side to an outer side of the tire, each carcass layer comprising organic fiber cords and having respective cord angles relative to a peripheral direction of the tire in a range of 65 degrees through 90 degrees;wherein end portions of the first carcass layer and the second carcass layer are folded back from the inner side to the outer side of the tire respectively around bead cores to form first and second fold back portions, reinforcement layers are arranged on outer sides of the fold back portions of the first and second carcass layers and the third carcass layer is turned down to cover axially outer sides of the reinforcement layers.