Method of increasing the load capacity of a radial tire
AssigneeThe Goodyear Tire & Rubber Company
InventorsMaurice Frank, Steven Wilton, Lance Wilkinson, Brian McMahon, Nicholas Sticklen
Life of this patent
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Abstract
An underground mine tire 20 having a nominal bead diameter of 20.0 inches or less has a carcass, a tread 25 and a pair of rubber sidewalls 23, each extending along the outer periphery of the carcass 21 below the tread 25. The tire 20 has a nominal bead width D greater than 8.50 inches and an overall diameter of less than 55 inches. The carcass 21 has at least one radial steel cord reinforced ply 24.
Claims16
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A method of increasing the load carrying capacity of a radial tire comprising the steps of:
- determining a maximum load, x+y;
- providing a mold for a radial tire capable of molding a tire having a rated load x;
- adding a spacer between adjacent mold halves thereby increasing the axial width of the mold to achieve the rated load x+y;
- designing an unvulcanized tire having a belt reinforcing structure and a radial ply by increasing the belt width and ply width of the tire and applying sidewall rubber to maintain a ply path curvature;
- and
- molding the tire.
Dependencies are inferred from the claim text.