Belt package for super single truck tires
AssigneeThe Goodyear Tire & Rubber Company
InventorsJean-Michel Gillard, Jean-Nicolas Helt, Christian Jean-Marie Roger Bawin
Life of this patent
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Abstract
A medium truck tire (10) and more specifically a super single truck tire (10) includes belt plies (24, 25) reinforced with steel cords which make an angle comprised between 0° and 5° with respect to the equatorial plane. At least one belt ply (24, 25) is helically wound on the carcass ply (16). The steel of the reinforcing cords comprises high elongation steel. Radially outside to the at least one helically wound belt ply (24, 25), there are several spliced belt plies (22, 23), making angles comprised between 45° and 75° with respect to the equatorial plane.
Claims11
A pneumatic super single radial truck tire (10) having at least one pair of parallel annular beads (17), at least one carcass ply (16) wrapped around said beads, a crown reinforcing structure comprising adjacent spliced belts plies (22, 23) reinforced with steel cords and at least one helically wound belt ply (24, 25) reinforced with straight high elongation steel cords, disposed over said carcass ply in a crown area of said tire, tread (28) disposed over said crown reinforcing structure, and sidewalls (26) disposed between said tread and said beads, characterized in that said at least one helically wound belt ply (24, 25) is located between the carcass ply and the radially innermost spliced belt ply.
Dependencies are inferred from the claim text.