Tire having circumferential cables for anchoring the carcass

Details Tire having circumferential cables for anchoring the carcass Tire having circumferential cables for anchoring the carcass

1996-06-28

1997-12-30

Johnstone, Adrienne C.

Resilient tires and wheels

Tires, resilient

Pneumatic tire or inner tube

152451, 152539, 152543, 152550, 152565, B60C 100, B60C 1500

Patent

active

057025487

ABSTRACT:
The anchoring of the carcass reinforcing elements 1 is assured by circumferential cables 2, with the interposition of a connecting rubber composition 3. The circumferential cable 2 is arranged in several turns forming one or more helices. These circumferential cables have an operational elongation rate A.sub.f =A.sub.e +A.sub.p of more than 4%. This operational elongation rate does not include the specific elongation A.sub.s of the "cable" effect. The maximum stress R.sub.m of the cable 2 is preferably more than 2000 MPa. The cables have undergone a heat treatment which has, in combination, the features of being a recovery annealing treatment and which is carried out directly on cable comprising wires previously separately covered by an adherent coating.

REFERENCES:
patent: 2966933 (1961-01-01), Boussu et al.
patent: 3072171 (1963-01-01), Drakeford et al.
patent: 3749558 (1973-07-01), Dillenschneider
patent: 3815652 (1974-06-01), Pouilloux
patent: 4106957 (1978-08-01), Tournoy
patent: 4407683 (1983-10-01), Hijikata et al.

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