BASE TIRE MANUFACTURING METHOD AND BASE TIRE

摘要

as buff allowance of vulcanization molding by the base tire is optimal, by setting the thickness of the rubber layer of the base tire, without limiting the shape after buffing, also, the rubber layer the thickness in order to provide a process for the production and the base tire of the base tire that can be properly secured, and the belt layer, and the outermost rubber layer of predetermined width of the tread distribution provided on the upper portion of the belt layer, the most platform and an end rubber member disposed in the width direction on both sides of the outer rubber layer a method of manufacturing a tire as well as lower than the loss tangent tan of the end rubber member loss tangent tan of the outermost rubber layer, the thickness A1 of the equatorial part of the front buffing of the outermost rubber layer, with respect to the thickness A2 obtained after buffing, and set to be equal to or smaller than the thickness A2 150%, and, the thickness A2 after buffing It was set to 1mm~3.5mm.