Pneumatic radial tire with 1.times.2 steel belt cord structure

Details Pneumatic radial tire with 1.times.2 steel belt cord structure Pneumatic radial tire with 1.times.2 steel belt cord structure

1990-11-02

1991-10-08

Weston, Caleb

Resilient tires and wheels

Tires, resilient

Pneumatic tire or inner tube

152451, 152526, B60C 900, B60C 918, B60C 920

Patent

active

050545310

ABSTRACT:
A pneumatic radial tire having at least one steel belt layer disposed at a tread portion, wherein each steel belt layer is constituted by mixing and arranging at random a plurality of steel cords having a 1.times.2 twist structure of an S twist and a plurality of steel cords having a 1.times.2 twist structure of a Z twist, and has a mixing ratio of the steel cords having the 1.times.2 twist structure of the S twist to the steel cords having the 1.times.2 twist structure of the Z twist within a range of 4:6 to 6:4 and a difference in the twist pitch of at least 1.5 mm.

REFERENCES:
patent: 1470924 (1923-10-01), Jury
patent: 1689119 (1928-10-01), Evans
patent: 3665993 (1972-05-01), Wittneben
patent: 4722381 (1988-02-01), Hopkins et al.
patent: 4749017 (1988-06-01), Loesch

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