Pneumatic radial tire with bead toe reinforcing rubber stock

Details Pneumatic radial tire with bead toe reinforcing rubber stock Pneumatic radial tire with bead toe reinforcing rubber stock

1994-03-07

1995-08-22

Johnstone, Adrienne C.

Resilient tires and wheels

Tires, resilient

Pneumatic tire or inner tube

152539, 152543, 152544, 152547, 152DIG9, B60C 1502, B60C 15024, B60C 1504, B60C 1506

Patent

active

054431050

ABSTRACT:
The pneumatic radial tire of the invention has a pair of bead portions each containing a bead core therein and is characterized in that each bead core is substantially constructed by winding at least one metal wire, and a bead toe reinforcing rubber stock with a JIS A hardness of 80.degree.-98.degree. is arranged inward of the outer edge of each bead core in an axial direction of the tire. In each bead portion the width of the bead toe reinforcing rubber stock is in a range of 0.5-2.0 times the width of the bead core in the axial direction. In each bead portion the width from the outer edge of the bead core to the inner edge of the bead portion in the axial direction of the tire is in a range of 1.1-3.0 times the width of the bead core in the axial direction of the tire. In each bead portion the side region in the axial direction of the tire and the inner region in the radial direction of the tire around the bead core and the bead toe reinforcing rubber stock are substantially reinforced by a chafer made of organic fiber cords.

REFERENCES:
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patent: 3951192 (1976-04-01), Gardner et al.
patent: 4185676 (1980-01-01), Raluy
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patent: 4269251 (1981-05-01), Harrington et al.
patent: 4580610 (1986-04-01), Jackson
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patent: 4940069 (1990-07-01), Nakasaki et al.
patent: 5016697 (1991-05-01), Noma et al.
patent: 5044413 (1991-09-01), Noma et al.
patent: 5186772 (1993-02-01), Nakasaki et al.
patent: 5307853 (1994-05-01), Okuda

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