Patent ID: 6406575
Filing Date: 2002-06-18
Classification: B29C,B29D

Abstract:
A process for producing a pneumatic tire that includes an inner liner of a layer that is as air-impermeable as possible, at least one carcass ply provided with reinforcement elements, rim flange profiles, bead cores, sidewalls, a belt assembly, and a tread, the process comprising:building-up a basic tire structure in a production part A, the basic tire structure comprising at least a carcass body that includes the at least one carcass ply provided with the reinforcement elements, bead reinforcements and cores, and core fillers and rim flange profiles; shaping and at least partially vulcanizing the basic tire structure under an internal pressure in a vulcanization mold in a first vulcanization procedure to give a cross-sectional contour to a surface contour and a contour of the reinforcement elements in the production part A; completing the at least partially vulcanized basic tire structure in a production part B to form a complete tire by adding remaining tire components; and vulcanizing the complete tire in the vulcanization mold, thereby bonding the basic tire structure to the remaining tire components, wherein, while vulcanizing the complete tire, the tire undergoes, under internal pressure, a residual elevation from its shape into contact with the mold to form a final contour, wherein the residual elevation in shoulder areas of the completed tire is greater than or equal to the residual elevation in a zenith area.