| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for molding a tire capable of controlling a rubber material in a ribbon shaped rubber extruded at respective parts of the same in a high precision, in the method for molding a tire comprising mixing a plurality of rubber compositions under changing a mixing ratio of the compositions according to a pattern previously defined, extruding a continuous ribbon shaped rubber with a definite cross section in which the rubber material changes at least at a part, and assembling the rubber material with the definite cross section by directly rounding like a screw on a rotating support. SOLUTION: Each of the pellet shaped rubber composition is plasticized by continuously feeding at a respective charging rate based on a changing pattern of the mixing ratio previously determined. COPYRIGHT: (C)2004,JPO&NCIPI |
