Patent ID: 8025750

Claim:
A method for producing a retreaded tire comprising: removing tread rubber from a used tire having a belt consisting of at least one belt layer and the tread rubber to obtain a base tire, measuring a rubber gauge on a buffed surface of the base tire over an entire circumference of the buffed surface from which the tread rubber has been removed, the rubber gauge measured in a radial direction of the tire, from the buffed surface to an outer surface of an outermost belt cord embedded in an outermost belt layer disposed in a radially outermost side among belt, attaching retread rubber on the buffed surface of the base tire over the entire circumference of the buffed surface, a leading end part of the retread rubber being arranged to overlap with a location on the base tire, in an equatorial plane of the tire, where the rubber gauge is minimal on the circumference, to form a joint part of the retreaded tread rubber at the minimal location of the rubber gauge, and vulcanizing the base tire to which the retread rubber has been attached to obtain a retreaded tire, wherein the rubber gauge is measured with a contactless measurement sensor, wherein the contactless measurement sensor is an eddy-current displacement sensor, and wherein the belt cords are made of steel.