| 摘要 |
<p>Method for building a carcass for a radial tyre on a flat building drum, the building drum being provided with radially expandable locking parts in order to radially press layers which form the carcass and are placed thereon, up to the bead rings intended for the carcass so as to secure the bead rings, while the outer diameter of these locking parts is smaller than the inner diameter of the bead rings, so as to be able to expand, and wherein the carcass is built up of coating layers, carcass layers, two planing strips, two sidewall strips and two bead rings, the planing strips being made of squarish meshed fabric bedded in rubber. In this method first the sidewall strips and then the planing strips are arranged in such a way, that a side strip of each planing strip overlaps a side strip of the adjacent sidewall strip, after which the coating layer or coating layers are applied so that they overlap the side strips of the planing strips said side strips facing each other and not being overlapped by the sidewall strips, followed by the application of the carcass layer or carcass layers and finally by the arrangement of the bead rings. <IMAGE></p> |
