Non-pneumatic tire

Patent metadata

Field	Value
Publication number	US-10682886-B2
Application number	US-201715479568-A
Country	US
Kind code	B2
Filing date	Apr 5, 2017
Priority date	Apr 13, 2016
Publication date	Jun 16, 2020
Grant date	Jun 16, 2020

Abstract

A non-pneumatic tire is described that includes a ground contacting annular tread portion, a shear band, wherein the shear band is formed of a first and second inextensible layer, and a low modulus material positioned between the first and second inextensible layer. The non-pneumatic tire further includes a connecting web positioned between a hub and the shear band, wherein the connecting web is formed of one or more spokes extending from an inner ring to an outer ring, wherein the one or more spokes are formed from a material reinforced with a three dimensional spacer structure.

First claim

What is claimed is:

1. A non-pneumatic tire comprising
a ground contacting annular tread portion;
a shear band, wherein the shear band is formed of a first and second inextensible layer, and a low modulus material positioned between the first and second inextensible layer,
and a connecting web formed of one or more spokes extending between a hub and the shear band, wherein the one or more spokes are formed from a material reinforced with a three dimensional spacer structure, wherein the three dimensional spacer structure is formed from a first and second layer of material interconnected by a plurality of connecting members, wherein the non-pneumatic tire further includes a circumferentially continuous connecting web, wherein the circumferentially continuous connecting web has a higher stiffness in the radial direction than the stiffness in the axial direction.

2. The non-pneumatic tire of claim 1 wherein the spokes are aligned circumferentially in rows.

3. The non-pneumatic tire of claim 1 wherein the connecting members are aligned with the radial direction of the non-pneumatic tire.

4. The non-pneumatic tire of claim 1 wherein the first and second layer of material is knitted.

5. The non-pneumatic tire of claim 1 wherein the first and second layer of material is woven.

6. The non-pneumatic tire of claim 1 wherein the first and second layer of material is nonwoven.

7. The non-pneumatic tire of claim 1 wherein the connecting members are curved.

8. The non-pneumatic tire of claim 1 wherein the three dimensional spacer structure is formed of an auxetic material.

9. The non-pneumatic tire of claim 1 wherein the connecting members are further divided into a first and second set, wherein the connecting members of the first set are crossed with respect to the connecting members of the second set.

10. The non-pneumatic tire of claim 1 wherein the connecting members are perpendicular to the first and second layer of material.

11. The non-pneumatic tire of claim 1 wherein the connecting members are angled with respect to the first and second layer of material.

12. A non-pneumatic tire comprising
a ground contacting annular tread portion;
a shear band, wherein the shear band is formed of a first and second inextensible layer, and a low modulus material positioned between the first and second inextensible layer, and a connecting web formed of one or more spokes extending between a hub and the shear band, wherein the one or more spokes are formed from a material reinforced with a three dimensional spacer structure, wherein the three dimensional spacer structure is formed from a first and second layer of material interconnected by a plurality of connecting members, wherein the one or more spokes have a higher stiffness in the axial direction than the stiffness in the radial direction.

13. A non-pneumatic tire comprising
a ground contacting annular tread portion;
a shear band, wherein the shear band is formed of a first and second inextensible layer, and a low modulus material positioned between the first and second inextensible layer, and a connecting web formed of one or more spokes extending between a hub and the shear band, wherein the one or more spokes are formed from a material reinforced with a three dimensional spacer structure, wherein the three dimensional spacer structure is formed from a first and second layer of material interconnected by a plurality of connecting members, wherein the connecting members are aligned with the axial direction of the non-pneumatic tire.

14. A non-pneumatic tire comprising
a ground contacting annular tread portion;
a shear band, wherein the shear band is formed of a first and second inextensible layer, and a low modulus material positioned between the first and second inextensible layer, and a connecting web formed of one or more spokes extending between a hub and the shear band, wherein the one or more spokes are formed from a material reinforced with a three dimensional spacer structure, wherein the three dimensional spacer structure is formed from a first and second layer of material interconnected by a plurality of connecting members, wherein the connecting members have a defined radial height in the range of 3 to 25 millimeters.

15. A non-pneumatic tire comprising
a ground contacting annular tread portion;
a shear band, wherein the shear band is formed of a first and second inextensible layer, and a low modulus material positioned between the first and second inextensible layer, and a connecting web formed of one or more spokes extending between a hub and the shear band, wherein the one or more spokes are formed from a material reinforced with a three dimensional spacer structure, wherein the three dimensional spacer structure is formed from a first and second layer of material interconnected by a plurality of connecting members, wherein the first and second layer of material has a free area in the range of 5% to 75%.

Assignees

• Goodyear Tire & Rubber

Inventors

• Talbot William Alain
• Bilger Nicolas Charles Louis
• Sportelli Francesco
• Mzabi Samy Laroussi
• Sill Clemens Manuel
• Kulig Joseph John
• Bonnet Gilles
• Wilms Stefan

Classifications

• B60C7/102 Primary

  Tyres built-up with separate rubber parts · CPC title

• B60C7/146

  extending substantially radially, e.g. like spokes · CPC title

• B60C7/22 Primary

  having inlays other than for increasing resiliency, e.g. for armouring · CPC title

• B60C7/00 Primary

  Non-inflatable or solid tyres (B60C1/00 takes precedence) · CPC title

• B60C7/14

  using springs · CPC title