Radial tire for heavy duty vehicle including a folded belt layer

Details Radial tire for heavy duty vehicle including a folded belt layer Radial tire for heavy duty vehicle including a folded belt layer

1990-07-23

1993-04-13

Ball, Michael W.

Resilient tires and wheels

Tires, resilient

Pneumatic tire or inner tube

152529, 152534, 152537, 152538, B60C 926, B60C 920, B60C 918

Patent

active

052019691

ABSTRACT:
A radial tire for heavy duty vehicles having a steel belt layer with triangular structure which is composed of at least three belt plies of steel belt disposed on a carcass, and a middle layer which contains cords of aromatic polyamide fibers which is laid between first belt ply and second belt ply viewed from tread surface side among the belt plies.
The middle layer has skirts which are folded over from a main portion of the middle layer and laid between the first and second belt plies so as to wrap around each axial outer end of the first belt ply.
The cords of the first belt play and the cords of the second belt ply cross each other at an angle of from 10 to 30 deg. against the tire equator, and the cords of the middle layer slant in the same direction as that of first belt ply at an angle of 3 deg. or less against that of first belt ply.

REFERENCES:
patent: 3851692 (1974-12-01), Takemura et al.
patent: 4273177 (1981-06-01), Nybakken
patent: 4446905 (1984-05-01), Tamura et al.
patent: 4762153 (1988-08-01), Furuya et al.

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