PNEUMATIC RADIAL TIRE FOR A HEAVY VEHICLE, CAPABLE OF INCREASING THE LIFETIME OF A TIRE BY PREVENTING SEPARATION DUE TO HEAT GENERATION DURING DRIVING

摘要

PURPOSE: A pneumatic radial tire for a heavy vehicle is provided to effectively prevent partial wear at the edge of a block and to improve driving force and braking force without any degradation of performance.;CONSTITUTION: A pneumatic radial tire for a heavy vehicle comprises: a longitudinal groove which includes center grooves(G2,G3) which is respectively formed in both sides based on the center line of a tire tread width(TW) and center-shoulder grooves(G1,G4); a lateral groove(LG) which is formed to be crossed over each other in both sides of the tire shoulder part toward the width direction of a tire with the same pitch with the longitudinal groove; shoulder blocks(B1,B5) which divides each sides of the center-shoulder groove and a shoulder part; and semi-grooves(SG1,SG2,SG3,SG4) which is formed with a center-shoulder block(B2,B3) in order to tilt with a constant angle with being apart with a constant interval per 1 pitch.;COPYRIGHT KIPO 2010