| 摘要 |
<p>PURPOSE:To produce the tire with stable quality, while the accuracy of the position to be stuck of cushion rubber is heightened by a method in which the cushion rubber is divided and the divided parts are preset on a first belt and a carcass ply etc. CONSTITUTION:Cushion rubber 4 is divided into three, and its one part 4a is preset on a first belt 1a, the other part 4b is preset on a carcass ply 5 and its residual part is preset on a side tread 6. When air is injected into the carcass ply 5, and a bladder 9 is inflated by approaching the left and right cylindrical parts of a molding drum 8, the central part of the carcass ply 5 is expanded outside, and simultaneously when a bladder 10 is inflated by feeding air into the bladder, the carcass ply 5 and the side tread 6 is folded back by using beads 7 as a fulcrum. When its shaping is further advanced, this folded back part encloses the beads 7 and is brought in contact with the inner part of the carcass ply 5. When the bladder 11 is inflated, the force pressing the side tread 6 inside is increased, and the carcass ply 5 and the side thread 6 are mutually bonded in pinched and pressurized state between the bladder 11 and the inside bladder 9.</p> |
