Pneumatic aviation tire

#The present invention generally relates to pneumatic tires and, more specifically, to pneumatic aviation tires for aircraft service having shoulder reinforcement.

#Pneumatic aviation tires for service on aircraft landing gears are exposed to severe operating conditions of load and acceleration. In particular, pneumatic aviation tires married with the landing gears of large commercial airliners are susceptible to severe deformation upon landing, takeoffs, and controlled movement of the aircraft under its own power while on the ground (e.g., taxiing). Loss of a landing gear tire on takeoff (e.g., a blowout) may result in an aborted take-off or an emergency landing. Loss of a tire on the landing gear upon landing may result in an inability to halt the airliner's momentum, leading to runway overshoot. Airliners often elevate tire temperature by taxiing long distances and/or by taxiing fast, which may increase the susceptibility to blowouts during takeoff or after landing.

#Typically, the belt package incorporated into conventional aviation pneumatic tires includes a number of cut belt layers and a number of spiral wound layers formed from cord reinforced strip(s) wound about the circumference of the tire with a zero degree spiral overlay. The spiral wound layers terminate proximate the tire shoulder with no overlap as the winding direction is reversed to apply the successive spiral wound layers.

#The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with a general description of the invention given above, and the detailed description given below, serve to explain the invention.

#FIG. 1 is a diagrammatic view of a belt package of the invention providing shoulder reinforcement in an aircraft nose gear tire.

#FIG. 2 is a cross-sectional view of a pneumatic tire of an embodiment of the invention incorporating the belt package of FIG. 1.

#“Axial” and “axially” means the lines or directions that are parallel to the axis of rotation of the tire.

#“Bead” means that part of the tire comprising an annular tensile member

#wrapped by ply cords and shaped, with or without other reinforcement elements such as