Resilient tires and wheels – Tires – resilient – Pneumatic tire or inner tube
Patent
1987-09-23
1989-08-01
Ball, Michael W.
Resilient tires and wheels
Tires, resilient
Pneumatic tire or inner tube
152543, 152546, B60C 1506
Patent
active
048526266
ABSTRACT:
To prevent bead displacement under heavy load or to improve bead durability without increasing tire weight and decreasing tire productivity, the carcass is sandwiched between two reinforcing layers near the bead in such a way that metallic cords of the carcass and the two reinforcing layers, extending in three different directions, provide a triangular reinforcement structure. The radial distance H.sub.1 of the first reinforcing layer from the rim is 0.3 to 0.7 H (where H denotes a radial distance between the rim and the maximum tire width position); the radial distance H.sub.2 of the first reinforcing layer is 0.25 to 0.6 H; the radial distance H.sub.3 between H.sub.1 and H.sub.2 is 0.05 H or more; and the radial overlap distance .alpha. between two reinforcing layers is 0.1 H or more. Further, the overlap length l between the two layers is 0.25 L or more (where L denotes the width of the first reinforcing layer).
REFERENCES:
patent: 3964533 (1976-06-01), Arimura et al.
patent: 4319621 (1982-03-01), Motomura et al.
patent: 4700764 (1987-10-01), Endo et al.
Patent Abstracts of Japan, vol. 9, No. 55 (M-362)[1778], Mar. 9, 1985; & JP-A-59 190 011 (Sumitomo Gomu Kogyo K.K.) 10-27-1984.
Patent Abstracts of Japan, vol. 10, No. 163 (M-487)[2219], Jun. 11, 1986; & JP-A-61 16 106 (Sumitomo Gomu Kogyo K.K.) 1-24-1986.
Ball Michael W.
Bridgestone Corporation
Knable Geoffrey L.
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