Vehicle wheels and tyre comprising said metallic reinforcing cord
AssigneePirelli Tyre S.p.A.
InventorsSimone Agresti, Guido Luigi Daghini
Life of this patent
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Abstract
The invention relates to a metallic reinforcing cord (10) for tyres for vehicle wheels, comprising from two to ten metallic wires (11) twisted together with a twisting pitch (P) and each having a predetermined diameter. In at least some cross sections of the metallic reinforcing cord (10), at least two of said metallic wires (11) are arranged to a minimum mutual distance greater than, or equal to, 2.5 times the predetermined diameter.
Claims13
A metallic reinforcing cord for tyres for vehicle wheels, consisting of:
- from two to ten metallic wires twisted together and having a predetermined diameter, wherein, in at least some cross sections of the metallic reinforcing cord, at least two of the metallic wires are arranged to a minimum mutual distance greater than, or equal to, 2.5 times the predetermined diameter.
A metallic reinforcing cord for tyres for vehicle wheels, consisting of:
- from two to ten metallic wires twisted together and having a predetermined diameter, wherein, in at least some cross sections of the metallic reinforcing cord, at least two adjacent wires of the metallic wires are arranged to a minimum mutual distance greater than, or equal to, 2.5 times the predetermined diameter;
- wherein the at least two adjacent wires are arranged so that a line that joins their centers does not intersect further wires, wherein said line diametrically cuts the outer surface of said two adjacent wires at two diametrically opposite points and said minimum mutual distance is measured along said line between the points that, among the two diametrically opposite points of each of said two adjacent wires, are closest to each other.
A metallic reinforcing cord for tyres for vehicle wheels, consisting of:
- from two to ten metallic wires twisted together and having a predetermined diameter, wherein, in at least some cross sections of the metallic reinforcing cord, at least two of the metallic wires are arranged to a minimum mutual distance greater than, or equal to, 2.5 times the predetermined diameter;
- wherein the reinforcing cord has a part load elongation, evaluated with the BISFA E7 method, greater than, or equal to, 2%.
Dependencies are inferred from the claim text.