METHOD OF MANUFACTURING SUPPORT BODY FOR PNEUMATIC RUN FLAT TIRE

A manufacturing method of a support body for pneumatic run-flat tire is provided, which can make the structures of a mold and a vulcanizer simpler than heretofore. A metallic support portion is comprised of three parts of a center portion and outside portions of both sides thereof, and a rubber leg portion is vulcanized and formed so as to be integrated to the outside portion, which is one of the parts to configure the support portion. Further, the center portion and the outside portions are coupled by welding and the like. Consequently, a mold to form and vulcanize the leg portion can be made smaller than heretofore, and moreover, since the left and right leg portions can be vulcanized and formed by a single mold, the structure of the mold can be made simpler than heretofore.