Reinforced resilient support for a non-pneumatic tire
View Patent ↗A support structure for a non-pneumatic tire and a tire incorporating such support structure. A support membrane extends continuously between a radially-inner end and a radially-outer end. Joints may be positioned at each end. An annular band may be connected with the radially-outer end. A wheel, hub, or other structure may be connected with the radially-inner end.
1. A resilient, composite structure for connecting with components of a tire; the tire defining axial, radial, and circumferential directions; the composite structure comprising:
a radially-outer joint for connecting with a first component of a tire;
a radially-inner joint for connecting with a second component of a tire;
a support membrane extending continuously from the radially-outer joint and the radially-inner joint, the support membrane having a radially-outer end that is located radially inward of the radially-outer joint, the support membrane having a radially-inner end that is located radially outward of the radially-inner joint, the support membrane defining a pair of opposing sides along the circumferential direction, the support membrane having an arcuate shape that extends continuously from the radially-outer joint to the radially-inner joint; and
wherein the radially-inner joint and the radially-outer joint are movable relative to each other so as to allow bending of the support membrane, and wherein the radially-inner support and the radially-outer joint are both located on one of the opposing sides of the pair of opposing sides of the support membrane.
2. The resilient, composite structure of claim 1 , wherein the support membrane comprises a plurality of reinforced layers separated by a non-reinforced, elastomeric shear layer in between each of the reinforced layers.
3. The resilient, composite structure of claim 2 , wherein the reinforced layers have a lower modulus than the non-reinforced elastomeric shear layer between the reinforced layers.
4. The resilient, composite structure of claim 3 , wherein each reinforced layer comprises a plurality of elongate reinforcements positioned adjacent to each other and extending continuously along the radial direction from the radially-inner end to the radially-outer end of the support membrane.
5. The resilient, composite structure of claim 4 , wherein each reinforced layer comprises an elastomeric material surrounding the plurality of elongate reinforcements.
6. The resilient, composite structure of claim 3 , wherein each reinforced layer comprises a fiber reinforced plastic.
7. The resilient, composite structure of claim 6 , further comprising an elastomer surrounding the fiber reinforced plastic.
8. The resilient, composite structure of claim 1 , wherein the radially-outer end of the support membrane is not connected to the first component.
9. The resilient, composite structure of claim 1 , wherein the radially-inner end of the support membrane is not connected to the second component.
10. The resilient, composite structure of claim 1 , wherein the radially-outer joint is positioned between the radially-outer end of the support membrane and the first component.
11. The resilient, composite structure of claim 1 , wherein the radially-inner joint is positioned between the radially-inner end of the support membrane and the second component.
12. The resilient, composite structure of claim 1 , wherein the radially-inner joint and the radially-outer joint each compromise an elastomeric material.
13. The resilient, composite structure of claim 1 , wherein the first component is an annular band, and wherein the radially-outer joint defines a radially-outer connecting surface incorporated with the annular band of the tire.
14. The resilient, composite structure of claim 1 , wherein the support membrane, radially-inner joint, and radially outer joint extend continuously between opposing sides of the tire.