Run flat pneumatic tire with shoulder cushion rubber layer...

Details Run flat pneumatic tire with shoulder cushion rubber layer... Run flat pneumatic tire with shoulder cushion rubber layer...

2005-05-10

2005-05-10

Johnstone, Adrienne C. (Department: 1733)

Resilient tires and wheels

Tires, resilient

Pneumatic tire or inner tube

C152S532000, C152S550000, C152S556000, C152S564000

Reexamination Certificate

active

06889736

ABSTRACT:
There is provided a pneumatic tire having an aspect ratio of not less than 60 and considerably improving run flat durability as compared with the conventional type of the run flat tire, wherein at least one cushion rubber layer having a loss tangent lower than a loss tangent (tan δ) of a coating rubber for cords of a carcass ply is arranged between an end portion of a belt and a reinforcing rubber layer in a shoulder region and between mutually adjacent tire constitutional members. And also, when the carcass is comprised of plural plies, at least one ply is separated off in a zone beneath the belt, whereby the ride comfort against vibrations can be more improved.

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