Radial tire with bead reinforcing elements

Details Radial tire with bead reinforcing elements Radial tire with bead reinforcing elements

1977-12-05

1980-07-15

Bartuska, F. J.

Resilient tires and wheels

Tires, resilient

Patches

152362R, B60C 900

Patent

active

042123402

ABSTRACT:
A radial carcass pneumatic tire having a carcass ply turn-up portion includes a reinforcement ply folded around each bead ring. Each reinforcement ply overlaps and extends beyond the turn-up edge of the carcass play and includes for example a steel cord portion of thick cross-section abutting a textile cord portion of thinner cross section. The cords throughout the reinforcement ply are arranged obliquely with the cords of the radial carcass ply. In other respective embodiments a transition zone between the thick and thin portions of the reinforcement ply includes a cover strip, an overlapping portion and a filler strip. The bead reinforcement constructions reduce bead element edge separations and provide a desirable graduated stiffness from the bead to the beginning area of the sidewall permitting optimal transferring of torque and force.

REFERENCES:
patent: 3253636 (1966-05-01), Travers
patent: 3392773 (1968-07-01), Warren et al.
patent: 3612138 (1971-10-01), Ravenhall
patent: 3736973 (1973-06-01), Mezzanotte et al.
patent: 3841377 (1974-10-01), Montagne
patent: 3921693 (1975-11-01), Suzuki et al.
patent: 4074743 (1978-02-01), van der Burg et al.

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