Resilient tires and wheels – Tires – resilient – Pneumatic tire or inner tube
Patent
1991-07-09
1993-11-16
Ball, Michael W.
Resilient tires and wheels
Tires, resilient
Pneumatic tire or inner tube
152526, 152534, 152535, B60C 918, B60C 920
Patent
active
052614751
ABSTRACT:
An off-the-road pneumatic steel radial tire comprises a radial carcass comprised of at least one carcass ply containing steel cords and a belt superimposed about a crown portion of the carcass and comprised of at least three laminated steel cord layers. In this tire, the belt includes at least two main belt layers each containing substantially inextensible steel cords, in which steel cords included in at least one of these main belt layers satisfy conditions that a cord diameter is. the same in this layer but different from that of the remaining main belt layer, and a ratio of cord diameter in these main belt layers is within a range of 1.2-3.0, and a ratio of total breaking load of cords in these main belt layers per unit width is within a range of 1.1-2.0 times.
REFERENCES:
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patent: 4169495 (1979-10-01), Maiocchi
patent: 4172487 (1979-10-01), Suzuki et al.
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patent: 4293019 (1981-10-01), Maiocchi
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patent: 4702293 (1987-10-01), Iwata et al.
patent: 4742858 (1988-05-01), Takahira
patent: 5027877 (1991-07-01), Tamura et al.
"Mechanics of Pneumatic Tires", U.S. Dept. of Transportation, Aug. 1981, pp. 219-220.
Nakano Minoru
Sato Tetsuhiko
Yoshino Satoshi
Ball Michael W.
Bridgestone Corporation
Johnstone Adrienne C.
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