Pneumatic radial tires

Details Pneumatic radial tires Pneumatic radial tires

1988-02-29

1990-04-03

Hoch, Raymond

Resilient tires and wheels

Tires, resilient

Anti-skid devices

B60C 1108

Patent

active

049132075

ABSTRACT:
A pneumatic radial tire for use in heavy duty vehicles such as an airplane and so on comprises at least one carcass ply as a tire body reinforcement, at least two belt layers as a tread reinforcement, and a tread provided with a pair of main grooves extending circumferentially of the tread at a position ranging from the side end of the tread within 15.about.40% of tread ground contact width. In this tire, the tread is composed of a tread rubber satisfying a requirement that modulus at 100.degree. C. under 100% elongation of tread rubber constituting each side portion of the tread is lower by a range of 30.about.80% than that of tread rubber constituting a central portion of the tread.

REFERENCES:
patent: 2224141 (1940-12-01), Clark
patent: 3364965 (1968-01-01), Oubridge
patent: 4152186 (1979-05-01), Shibata
patent: 4319620 (1982-03-01), Knill
patent: 4445560 (1984-05-01), Musy
patent: 4580608 (1986-04-01), Rampl

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