Pneumatic tire with circumferential belt layer/inclined belt lay

Details Pneumatic tire with circumferential belt layer/inclined belt lay Pneumatic tire with circumferential belt layer/inclined belt lay

1998-05-11

2000-08-08

Johnstone, Adrienne C.

Resilient tires and wheels

Tires, resilient

Pneumatic tire or inner tube

152526, 152531, 152532, 152533, 152537, B60C 918, B60C 920, B60C 922

Patent

active

060986832

ABSTRACT:
The belt of a pneumatic tire is a laminate of a circumferential belt layer and an inclined belt layer, the circumferential belt layer comprising a plurality of reinforcing elements arranged substantially in parallel with the equatorial plane of the tire and coated with rubber, and the inclined belt layer comprising a plurality of reinforcing elements inclined with respect to the equatorial plane of the tire and coated with rubber, wherein at least in the coating rubber of the circumferential belt layer and the coating rubber of the inclined belt layer adjoining each other, the modulus of elasticity of the coating rubber of the circumferential belt layer is lower than that of the coating rubber of the inclined belt layer. The pneumatic tire of the invention avoids the disadvantage generated by addition of a circumferential belt layer while strengthening the circumferential rigidity by the circumferential belt layer.

REFERENCES:
patent: 5004031 (1991-04-01), Kadota et al.
patent: 5154217 (1992-10-01), Kanamaru
patent: 5383507 (1995-01-01), Sato et al.
Patent Abstracts of Japan, vol. 17, No. 240, May 14, 1993, JP-A-04 365603 (Sumitomo Rubber Ind Ltd), Dec. 17, 1992.
Patent Abstracts of Japan, vol. 16, No. 384, Aug. 17, 1992, JP-A-04 126609 (Bridgestone Corp), Apr. 27, 1992).

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