Pneumatic tire

Details Pneumatic tire Pneumatic tire

1990-10-09

1994-05-10

Ball, Michael W.

Resilient tires and wheels

Tires, resilient

Anti-skid devices

B60C 1111

Patent

active

053099630

ABSTRACT:
A pneumatic tire has a tread pattern with blocks which are divided by two circumferential grooves extending in the circumferential direction of a tire and eighty-five or more lateral grooves crossing the circumferential grooves in a tread part. In the tread pattern, the quotient S.sub.T /S of the total groove area S.sub.T which is the sum of the circumferential groove area S.sub.G and the lateral groove area Sg in a ground contact surface S when the tire is mounted on a standard rim, inflated with a normal internal pressure and loaded with a normal load, to the ground contact area S is in a range from 0.15 to 0.25, and the rate Sg/S.sub.G of the lateral groove area Sg to the circumferential groove area S.sub.G is in a range from 0.33 to 0.53.

REFERENCES:
patent: D279088 (1985-06-01), Giron
patent: D316692 (1991-05-01), Fukumoto
patent: 1413190 (1922-04-01), Rapson
patent: 2130594 (1938-09-01), Mooradian
patent: 2207099 (1940-07-01), Maynard
patent: 3023798 (1962-03-01), Moore et al.
patent: 4078596 (1978-03-01), Nakajama et al.
patent: 4178199 (1979-12-01), Lippman et al.
patent: 4412576 (1983-11-01), Nakajima
patent: 4953604 (1990-09-01), Shepler et al.
patent: 5178699 (1993-01-01), Kakumu et al.
"Automotive Tire Noise; A Comprehensive Study" Sound and Vibration, May 1974, pp. 42-47.

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