| 摘要 |
A process and apparatus for turning up the carcass plies in a tire, the tire including a carcass structure including at least one carcass ply provided with at least one reinforcing element coated with at least one layer of elastomeric material, and at least one annular reinforcing structure. The apparatus is equipped with a support drum conveniently shaped for supporting at least one ply and with at least one turning up device provided with an annular continuous presser element. The latter is axially translatable along an axis of the support drum and radially expandable or contractible relative to the axis of the support drum between a contracted position and an expanded position to turn up the carcass ply around an annular reinforcing structure. The device is further provided with means of adjusting the contracted position of the annular element depending on the size of the tire to be manufactured. |
