| 摘要 |
A pneumatic vehicle tyre comprises a single ply or multi-ply radial carcass anchored to bead rings, a tread, and a breaker arrangement provided between the carcass and the tread. The breaker arrangement is preferably built up of at least two cut breaker plies with the threads or cords of the cut breaker plies, which serve as strength carriers and extend parallel to one another in the respective layer, crossing at a predeterminable angle to the central mid-circumferential plane. The tyre also comprises at least one cover ply of cords of threads extending at least substantially in the circumferential direction of the tyre and surround the breaker arrangement at least in its edge regions. To reduce the tyre weight while simultaneously ensuring good tyre characteristics the breaker arrangement (4) has threads or cords (9) of non-metallic material and a material with a low thermal shrinkage or no thermal shrinkage is used as the material for the threads or cords (8) of the cover ply (5). An extension of the tyre is ensured into the tyre mould during its manufacture through the choice of the material of the threads of cords of the cover ply (5) alone, or in conjunction with the nature of the construction and/or of the application of the cover ply (5) and/or through the nature of the construction of the threads or cords (8) of the cover ply (5), but an extension of the tyre which goes beyond this is simultaneously counteracted. <MATH> |
