TIRE SIDEWALL SHEAR DECOUPLING LAYER

摘要

A pneumatic tire having pairs of shoulder section and bead section shear layers positioned on at least one axial side of the carcass layer. Examples include one or more of the shear layers constituted of an elastomer composition having a modulus of elongation at 10% (MA1O) of no greater than 110% of the lowest MA1O of all elastomer compositions constituting the sidewall components that are positioned outward of an axially-inward side of the carcass layer and/or constituted of a short-fiber reinforced elastomer composition having an MA1O of between 25 MPa and 100 MPa and/or the bead section shear layers constituted of an elastomer composition having an MA1O of no greater than 110% of the highest MA1O of all elastomer compositions constituting the sidewall bead section components. Exemplary shoulder section and bead section shear layers in a pinch shocked region are opposite across an interior of the tire.