Pneumatic radial tire having an improved durability in bead sect

Details Pneumatic radial tire having an improved durability in bead sect Pneumatic radial tire having an improved durability in bead sect

1988-09-26

1990-04-17

Hoch, Raymond

Resilient tires and wheels

Tires, resilient

Pneumatic tire or inner tube

152541, 152543, 152546, 152547, B60C 1506

Patent

active

049171666

ABSTRACT:
A reinforced radial tire bead construction for heavy load vehicles, such as trucks and buses, which has excellent durability and recapability. The tire has a carcass ply turnup wrapped around a bead core and a relatively soft rubber apex strip. A steel cord reinforcing layer surrounds part of the turnup and a layer of organic fiber cords is outside the steel cord layer and extending to a greater radial height. Between the turnup ends and the inner surface of the organic cord layer is a rubber strip of relatively soft material. Between the carcass ply main portion and the soft rubber apex strip is a rubber band of relatively harder material.

REFERENCES:
patent: 3964533 (1976-06-01), Arimura et al.
patent: 4046183 (1977-09-01), Takahashi et al.
patent: 4086948 (1978-05-01), Suzuki et al.
patent: 4120338 (1978-10-01), Mirtain
patent: 4185677 (1980-01-01), Motomura et al.
patent: 4212340 (1980-07-01), Van Der Burg et al.
patent: 4495976 (1985-01-01), Makino et al.

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