Resilient tires and wheels – Tires – resilient – Pneumatic tire or inner tube
Patent
1998-12-16
2000-10-24
Johnstone, Adrienne C.
Resilient tires and wheels
Tires, resilient
Pneumatic tire or inner tube
152539, 152547, 152564, B60C 100, B60C 1500, B60C 1506
Patent
active
061351822
ABSTRACT:
A heavy duty pneumatic radial tire comprises a carcass ply wound around a bead core from inside toward outside to form a turnup portion, a rubber chafer arranged at an outer surface side of the turnup portion, and a reinforcing rubber arranged between a portion of the rubber chafer and the turnup portion, in which the reinforcing rubber is made of an anisotropic material having different properties at least between the circumferential direction and the radial direction of the tire, and 100% moduli M.sub.1, M.sub.2 of the reinforcing rubber in the circumferential and radial directions and 100% modulus M.sub.3 of a coating rubber for the carcass ply satisfy relationships of M.sub.1 /M.sub.2 >1.1 and M.sub.2 /M.sub.3 <1.0.
REFERENCES:
patent: 4711285 (1987-12-01), Ogawa et al.
Patent Abstracts of Japan, vol. 97, No. 8, Aug. 29,1997; & JPA 09-099708 (BRIDGESTONE CORP) Apr. 15,1997.
Patent Abstracts of Japan, vol. 97, No. 8, Aug. 9,1997; & JPA 09-099709 (BRIDGESTONE CORP) Apr. 15,1997.
Patent Abstracts of Japan, vol. 97, No. 7, Mar. 4,1997; & JPA 09-058228 (BRIDGESTONE CORP) Jul. 31,1997.
Bridgestone Corporation
Johnstone Adrienne C.
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