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US 12,179,526 B2Granted
Non-pneumatic tire and method of manufacture thereof
AssigneeThe Carlstar Group LLC
InventorsTim Moss, Bruce Li Wang
Life of this patent
Estimating the term…
Abstract
A non-pneumatic tire is provided. The non-pneumatic tire includes an outer annular portion, an inner annular portion, and a load bearing ring positioned between the outer annular portion and the inner annular portion, the load bearing ring including an inner layer of matrix material, an outer layer of matrix material, and a wave shaped spring positioned between the inner layer of matrix material and the outer layer of matrix material.
Claims20
A non-pneumatic tire comprising:
- an outer annular portion forming an outer surface of the tire;
- an inner annular portion for contacting a wheel hub;
- a load bearing ring positioned between the outer annular portion and the inner annular portion;
- and
- a webbing portion positioned between the load bearing ring and the inner annular portion,
- wherein the load bearing ring comprises:
- a ring of matrix material;
- and
- a wave shaped spring embedded in the ring of matrix material, the ring of matrix material having an inner layer of matrix material positioned radially inward of the wave shaped spring and an outer layer of matrix material positioned radially outward of the wave shaped spring, and
- wherein along a length of the wave shaped spring, the wave shaped spring is in contact with the inner layer of matrix material and the outer layer of matrix material.
7 more elements
A non-pneumatic tire comprising:
- an outer annular portion including at least one of thermoplastics, thermosets, and composites;
- an inner annular portion including at least one of metal, polymer, composite, and ceramic;
- and
- a load bearing ring positioned between the outer annular portion and the inner annular portion, the load bearing ring comprising:
- an inner layer of matrix material having a Poisson ratio of greater than 0;
- an outer layer of matrix material having a Poisson ratio of less than or equal to 0;
- and
- a wave shaped spring embedded between the inner layer of matrix material and the outer layer of matrix material, the wave shaped spring comprising a tensile modulus, at 10% strain, of at least 50 MPa;
- wherein the wave shaped spring is in contact with the inner layer of matrix material and the outer layer of matrix material along a length of the wave shaped spring;
- wherein a tensile modulus of the wave shaped spring is at least five times a tensile modulus of at least one of the inner layer of matrix material, the outer layer of matrix material, and an average of the inner layer of matrix material and the outer layer of matrix material;
- and
- wherein the wave shaped spring comprises a waveform shape including at least one of sinusoidal, triangular sinusoidal, square sinusoidal, trapezoidal sinusoidal, pulse sinusoidal, hexagonal sinusoidal, sawtooth sinusoidal, and multivariate sinusoidal.
9 more elements
Dependencies are inferred from the claim text.