Luftreifen mit einer Verstärkungsstruktur, die eine Mehrzahl von aus nebeneinander Corden Verstärkungsstreifen aufweist, und Verfahren zur Herstellung oder Runderneuerung solcher Luftreifen

摘要

A pneumatic tire (21) having a carcass (31) and a crown region (60) is disclosed, the crown region comprising a crown reinforcement structure and a tread portion (25) with a radially inner side and a tread on its radially outer side. The crown reinforcement structure is located between the tread portion (25) and the carcass (31) and comprises a plurality of adjacent cord reinforced strips (43). The cord reinforced strips (43) are in direct contact either with the inner side of the tread portion or are separated from the tread portion only by a rubber cushion layer (52, 53, 56). A process to manufacture such a tire (21) comprises the steps of: (a) preparing an assembly with a carcass (31), a green tread reinforcing rubberized ply layer applied radially upside of the carcass, and a green tread portion applied onto the green tread reinforcing rubberized ply layer, and (b) transferring the assembly into the pneumatic tire by curing. The green ply layer is formed by winding a continuous green rubberized cord comprising strip radially upside onto the carcass or an intermediate layer applied onto the carcass. The green tread portion is applied in such a way onto the green tread reinforcing rubberized ply layer that it is either in direct contact with the green tread reinforcing rubberized ply layer or that it is separated from the green tread reinforcing rubberized ply layer only by a rubber cushion layer. Slightly modified, this process can also be used to retread a pneumatic tire, in particular an aircraft tire.