Pneumatic radial tire and rim combination for passenger car

Details Pneumatic radial tire and rim combination for passenger car Pneumatic radial tire and rim combination for passenger car

1987-12-22

1989-10-10

Hoch, Raymond

Resilient tires and wheels

Tires, resilient

Pneumatic tire or inner tube

1523795, 152546, 152556, B60C 1506

Patent

active

048724971

ABSTRACT:
An pneumatic radial tire for a passenger car having an improved durability, which tire has a carcass layer formed of aromatic plyamide cords in which an end portion of the carcass layer is turned up around an annular bead wire and a lower bead filler from the inside to the outside of the tire to form a turnup portion which is extended along the main body of the carcass layer, wherein an upper bead filler having a JIS hardness of from 75 to 95 is disposed axially outside the turnup portion, and wherein the height b (mm) of the lower bead filler relative to the height a (mm) of a rim flange upon which the tire is mounted satisfies the formula:

REFERENCES:
patent: 3977172 (1976-08-01), Kerawalla
patent: 4023608 (1977-05-01), Meiss
patent: 4139040 (1979-02-01), Samoto et al.
patent: 4285381 (1981-08-01), Furukawa et al.
patent: 4326576 (1982-04-01), Mizumoto et al.
patent: 4462447 (1984-07-01), Siefert et al.
Woods, E. C., Pneumatic Tire Design, W. Heffer & Sons Ltd., Cambridge, England, 1955 (pp. 27,28, 91-94).

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