Pneumatic tire with reinforced tread
AssigneeThe B. F. Goodrich Company
InventorJerome T. Praszek
Life of this patent
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Abstract
A pneumatic tire comprises a tread portion reinforced with a layer of rubberized square-woven fabric which is applied as a narrow strip wound in a plurality of successive circumferential turns. Preferably this strip in certain of the turns is in an overlapping relationship with immediately preceding turns. This method of tread application is particularly advantageous in the retreading of high speed tires such as aircraft tires.
Claims4
In a method of forming the tread portion of a pneumatic tire which method includes applying to the circumference of the tire a radially inner, circumferentially disposed layer of essentially fabric-free elastomeric material, a radially intermediate, circumferentially disposed layer of fabric reinforced elastomeric material and a radially outer, circumferentially disposed layer of fabric-free elastomeric material, the improvement comprising applying said radially intermediate layer by continuously winding a single narrow strip of square-woven fabric in a predetermined number of successive circumferential turns such that the weft strands of said fabric are disposed substantially normal relative to the plane containing the circumferential centerline of said tire and a widthwise portion of said strip in each of a selected number of said turns overlaps a widthwise portion of said strip in an immediately preceding turn.
In a pneumatic tire having a tread portion comprising a radially inner layer of elastomeric material, which is essentially free of fabric reinforcement a radially intermediate layer of fabric reinforced elastomeric material and a radially outer layer of elastomeric material which is essentially free of fabric reinforcement, the improvement wherein said radially intermediate layer of fabric reinforced elastomeric material comprises a single narrow strip of square-woven fabric continuously wound in a plurality of turns over said radially inner layer of elastomeric material such that the weft strands in said square-woven fabric are disposed substantially normal relative to the plane containing the circumferential centerline of said tire and a widthwise portion of the strip in each of a selected number of said turns overlaps a widthwise portion of said strip in an immediately preceding turn.
Dependencies are inferred from the claim text.