Resilient tires and wheels – Tires – resilient – Pneumatic tire or inner tube
Patent
1995-10-24
1997-07-15
Johnstone, Adrienne C.
Resilient tires and wheels
Tires, resilient
Pneumatic tire or inner tube
152534, B60C 918, B60C 920
Patent
active
056479280
ABSTRACT:
A heavy duty pneumatic tire comprises a radial carcass, and a belt comprised of at least three belt layers, in which a first belt layer contains cords inclined at a large cord angle with respect to an equatorial plane of the tire and each of a second belt layer and a third belt layer contains cords inclined at a small cord angle with respect to the equatorial plane and cords of the second and third belt layers are crossed with each other. In the tire, the first belt layer is comprised of steel cords having a 1.times.N structure (N: 2-5) and/or each of the second and third belt layers is comprised of steel cords obtained by twisting 6 sheath steel filaments each having a filament diameter of not more than 0.30 mm around a single core filament at a twisting angle of not more than 6.degree..
REFERENCES:
patent: 5271445 (1993-12-01), Kohno et al.
Bridgestone Corporation
Johnstone Adrienne C.
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