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US 8,166,741 B2Granted
Resilient composite tire cord
AssigneeMichelin Recherche et Technique S.A.
InventorsHenri Barguet, Brigitte Chauvin, Alain Domingo, Thibaud Pottier
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AssigneeMichelin Recherche et Technique S.A.
InventorsHenri Barguet, Brigitte Chauvin, Alain Domingo, Thibaud Pottier
Estimating the term…
Elastic metal/textile composite cord (C-1) having two layers (Ci, Ce) of 1+N construction, formed from a core or inner layer (Ci) comprising a textile core thread (10) of diameter d1 and a metal outer layer (Ce) of N wires (12) of diameter d2 wound together in a helix with a pitch p2 around the layer Ci, said cord being characterized in that it has the following characteristics (p2 in mm): As>1.0%; At>4.0%; Af>6.0%; d1>1.1d2; 4<p2<14; and the core thread (10) is a textile fibre and is embedded in a sheath (11) of diene elastomer composition, As being the structural elongation of the composite cord, At its total elongation at break, and Af being the elongation at break of the textile fibre. Use of such a cord for the reinforcement of tires, for example in the belt of these tires.
An elastic composite cord (C-1, C-2) having two layers (Ci, Ce) of 1+N construction, rubberized in situ, formed from an inner layer (Ci) comprising a textile core thread (10, 20) of diameter d1 and a metal outer layer (Ce) of N wires (12, 22) of diameter d2 wound together in a helix with a pitch p2 around the layer Ci, wherein said composite cord has the following characteristics (p2 in mm):
Dependencies are inferred from the claim text.