| 摘要 |
PROBLEM TO BE SOLVED: To dispose a plurality of rubber coated cords for carcass plies without clearance in the circumference direction of a core of a circular annular form having an external surface shape corresponding to the internal surface shape of a product tire over the entire lengths of the rubber coated cords without generating the mutual overlapping and clearance between the mutual cords when molding the carcass plies by disposing the cords on the core to provide the rubber coated cords capable of effectively preventing enclosure of air into the molded carcass ply and generation of ruggedness on a surface of the carcass ply. SOLUTION: Thickness of the coated rubber 4 in relation to a material cord 3 is made thickest in the center part located corresponding to an equator line of the core, and the thickness of the coated rubber 4 is gradually reduced toward an end part of the material cord 3. Thickness of the rubber coated cord is made thickest in the center part and is made thinnest at both end parts. COPYRIGHT: (C)2008,JPO&INPIT
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