UNVULCANIZED RUBBER EXTRUSION MOLDING APPARATUS, UNVULCANIZED RUBBER EXTRUSION MOLDING METHOD, TIRE TREAD PART AND TIRE

摘要

PPROBLEM TO BE SOLVED: To provide an unvulcanized rubber extrusion molding apparatus capable of enhancing work efficiency and capable of precisely extruding a plurality of kinds of rubbery molding materials, an unvulcanized rubber extrusion molding method, a tire tread part and a tire. PSOLUTION: The unvulcanized rubber extrusion molding apparatus is constituted so as to extrude at least three kinds of rubbery molding materials at the same time to manufacture a molded product comprising a plurality of rubber layers and equipped with insert blocks 9, 10, 12 and 13 corresponding to the rubbery molding materials. The respective insert blocks 9, 10, 12 and 13 are independently mounted on a die holder 7 in a detachable manner. PCOPYRIGHT: (C)2006,JPO&NCIPI