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US 9,487,888 B2Granted
Cord for reinforcing rubber articles, and pneumatic tire
AssigneeBridgestone Corporation
InventorKeisuke Kawashima
Life of this patent
Estimating the term…
Abstract
A cord for reinforcing rubber articles according to the present invention is formed by a thread with ply-twisted cellulose fiber twisted with a thread of ply-twisted nylon fiber. The ply twist number of the nylon fiber is less than the ply twist number of the cellulose fiber. A pneumatic tire according to the present invention uses the cord for reinforcing rubber articles according to the present invention in a ply cord of the carcass.
Claims8
A pneumatic tire using a cord for reinforcing rubber articles in a ply cord of a carcass, the cord for reinforcing rubber articles comprising:
- a thread of ply-twisted cellulose fiber twisted with a thread of ply-twisted nylon fiber, wherein
- a ply twist number of the nylon fiber is less than a ply twist number of the cellulose fiber, and
- a content of nylon fiber in the cord is in a range from 17% to 45%.
Dependencies are inferred from the claim text.