Resilient tires and wheels – Tires – resilient – Pneumatic tire or inner tube
Patent
1998-08-17
2000-07-11
Johnstone, Adrienne C.
Resilient tires and wheels
Tires, resilient
Pneumatic tire or inner tube
152539, 152550, B60C 1500, B60C 1506, B60C 902
Patent
active
060858176
ABSTRACT:
A pneumatic tire comprises a carcass made from at least one cord array comprised of many arch portions of a cord extending between a pair of bead portions in a meridional direction and arranged over a full circumference of the tire at an equal interval P in a circumferential direction of the tire and many circumferential portions of the cord alternately arranged in the bead portions, each connecting ends of adjacent arch portions to each other in the bead portion and extending substantially in the circumferential direction. In this case, the cord array is arranged at n layers (n is an integer of 2 or more) while offsetting these layers by a distance L obtained by dividing the interval P by n in the circumferential direction. Further, the bead wire reinforcing layer is arranged outward from the overlap region of the circumferential portions in the radial direction so as to sandwich the cord array from both sides thereof.
REFERENCES:
patent: 3072171 (1963-01-01), Drakeford et al.
patent: 3815652 (1974-06-01), Pouilloux
patent: 5660656 (1997-08-01), Herbelleauu et al.
Bridgestone Corporation
Johnstone Adrienne C.
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