Patent ID: 6016858
Filing Date: 2000-01-25
Classification: B60C,Y02T,Y10T

Abstract:
A pneumatic radial ply passenger or light truck tire having an aspect ratio of 0.2 to 0.8, comprising a pair of parallel annular bead cores, one or more radial carcass plies of parallel cords, at least one radial carcass ply having a pair of turnups being wrapped around said bead cores, a belt structure disposed radially outwardly of said one or more radial carcass plies in a crown area of said tire, and an overlay having a width coinciding substantially with the width of said belt structure, a tread disposed radially outwardly of said overlay, the tread having a single tread radius (R) of greater than 500 mm over a tread arc width of 125 mm or more, and a sidewall disposed one between said tread and each of said bead cores, wherein said overlay comprises reinforcing filaments or cords embedded in an elastomer, the material of the filaments or cords being selected from the group consisting of rayon, polyethylene terephthalate (PET), aramid, polyethylene naphthalate (PEN) or polyvinyl alcohol (PVA), and said belt structure being made from two or more fiberglass cord reinforced layers having cord angles in the range of 18.degree. to 26.degree. with respect to the mid-circumferential centerplane of the tire.