Layered cord for tire belt
AssigneeMichelin Recherche et Technique S.A.
InventorsHenri Barguet, Brigitte Chauvin, Alain Domingo, Le Tu Anh Vo
Life of this patent
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Abstract
A compact metal cable having two layers (C1, C2) of construction 1+N, rubberized in situ, usable in particular as a reinforcing element for a tire belt for a heavy industrial vehicle, comprising a core or inner layer (C1) comprising a single core wire of diameter d1, and a saturated outer layer (C2) of N wires of diameter d2 wound together in a helix at a pitch p2 around the layer C1. The layered cable has the following characteristics (d1, d2, p2 in mm): 0.15<d1<0.50; 0.15<d2<0.50; 8<p2<25. The core wire is surrounded by a sheath of diene rubber which fills, at least in part, the gaps between the core wire and the cords of the layer C2.
Claims23
A tire for heavy industrial vehicles comprising a carcass reinforcement anchored in two beads and radially surmounted by a belt that, in turn, is surmounted by a tread which is joined to said beads by two sidewalls, said belt comprising a compact metal cable consisting of two layers (C1, C2) of construction 1+N, rubberized in situ, comprising a core or inner layer (C1) comprising a single core wire of diameter d1, and an outer layer (C2) saturated with N wires of diameter d2 wound together in a helix at a pitch p2 around the layer C1, said layered cable having the following characteristics (d1, d2, p2 in mm):
- 0.15<d1<0.50;
- 0.15<d2<0.50;
- 8<p2<25;
- and wherein the core wire is surrounded by a sheath of diene rubber which fills, at least in part, the gaps between the core wire and the wires of the layer C2.
Dependencies are inferred from the claim text.