Patent ID: 10603958

Abstract:
An airless tire includes a tread ring, a hub formed on radial direction inner side of the ring to be fixed to an axle, and a spoke structure connecting the ring and hub. The ring includes a tread rubber layer, a first reinforcing cord layer, a second reinforcing cord layer and a shear rubber layer between the first and second cord layers, the first and second cord layers and shear layer are formed such that ratio Eb1/Ee between tire circumferential direction tensile modulus Eb1 of the first cord layer and shear modulus Ee of the shear layer is 100 or greater and ratio Eb2/Ee between tire circumferential direction tensile modulus Eb2 of the second cord layer and shear modulus Ee is 100 or greater, and each cord layer has topping rubber having loss tangent tan δb of 0.03 to 0.10 and tensile modulus E*b of 4 to 20 MPa.