| 摘要 |
<p>The invention relates to a multilayer cable with an unsaturated outer layer for use as an element for reinforcing the frame of a tire carcass, comprising a core which has a diameter d0 and which is surrounded by an intermediate layer (C1). Said intermediate layer consists of 4 or 5 wires (M = 4 or 5) which have a diameter d1 and which are wound together in a spiral according to a lay p1. Said layer (C1) is itself surrounded by an outer layer (C2) consisting of N wires which have a diameter d2 and which are wound together in a spiral according to a lay p2, N being less than the maximum number Nmax of wires that can be wound around the layer (C1) in a spiral by 1 to 3. The cable has the following characteristics (d0, d1, d2, p1 and p2 in mm): (i) 0,08 lt; d0 lt; 0,28; (ii) 0,15 lt; d1 lt; 0,28; (iii) 0,12 lt; d2 lt;0,25; (iv) for M = 4: 0,40 lt; (d0d1) lt; 0,80; for M = 5: 0,70 lt; (d0d1) lt; 1,10; (v) 4,8pgr; (d0 plus; d1) lt; p1 lt; p2 lt; 5,6pgr; (d0 plus; 2d1 plus; d2); (vi) the wires of layers (C1) and (C2) being wound in the same direction of twist. The invention also relates to plastic andor rubber items or semifinished products which are reinforced by a multilayer cable of this type, especially tires for industrial vehicles, especially heavy vehicles tires and their carcass belts.</p> |
