Tire with spoke loops

Patent metadata

Field	Value
Publication number	US-12138971-B2
Application number	US-201816607759-A
Country	US
Kind code	B2
Filing date	Apr 4, 2018
Priority date	Apr 27, 2017
Publication date	Nov 12, 2024
Grant date	Nov 12, 2024

Abstract

A nonpneumatic tire assembly includes an outer hoop, a plurality of loops extending inward from the outer hoop, and a hub having a plurality of members. Each of the plurality of members is connected to one of the plurality of loops.

First claim

What is claimed is:

1. A method of making a nonpneumatic tire, the method comprising:
providing a forming jig having a plurality of members extending therefrom,
wherein the plurality of members include a first set of members defining a first circle having a first diameter, and
wherein the plurality of members include a second set of members defining a second circle having a second diameter larger than the first diameter,
providing a ply of flexible material, the ply of flexible material having a width equal to a final width of the nonpneumatic tire;
wrapping the ply of flexible material about the plurality of members to form an annular shape,
wherein the wrapping includes wrapping the ply of flexible material from a first one of the first set of members to a first one of the second set of members, and
wherein the wrapping further includes wrapping the ply of flexible material from a second one of the second set of members to a second one of the first set of members;
wrapping the ply of flexible material over itself multiple times in a circular direction to form an outer hoop configured to receive a circumferential tread;
curing the ply of flexible material; and
removing the ply of flexible material from the jig.

2. The method of claim 1 , wherein the ply of flexible material is formed by at least two plies of flexible materials calendered together.

3. The method of claim 2 , wherein the at least two plies of flexible materials have a reinforcement material sandwiched therebetween.

4. The method of claim 1 , wherein the ply of flexible material is a corded ply of flexible material.

5. The method of claim 1 , wherein the members are pins.

6. The method of claim 1 , further comprising placing extruded rubber compound adjacent to some of the plurality of members to form fillets.

7. The method of claim 1 , wherein the wrapping includes wrapping the ply of flexible material from the first one of the second set of members to the second one of the second set of members.

8. The method of claim 1 , wherein the wrapping includes wrapping the ply of flexible material from the second one of the first set of members to a third one of the first set of members.

9. The method of claim 1 , wherein the wrapping of the ply of flexible material from the first one of the first set of members to the first one of the second set of members includes extending the ply of flexible material in a substantially radial direction.

10. The method of claim 1 , wherein the wrapping of the ply of flexible material from the second one of the second set of members to the second one of the first set of members includes extending the ply of flexible material in a substantially radial direction.

11. A method of making a nonpneumatic tire, the method comprising:
providing a forming jig having a plurality of members extending therefrom,
wherein the plurality of members include a first set of members defining a first circle having a first diameter, and
wherein the plurality of members include a second set of members defining a second circle having a second diameter larger than the first diameter,
providing a first ply of flexible material, the first ply of flexible material having a width equal to a final width of the nonpneumatic tire;
wrapping the first ply of flexible material about the plurality of members to form a support structure,
wherein the wrapping includes wrapping the first ply of flexible material from a first one of the first set of members to a first one of the second set of members, and
wherein the wrapping further includes wrapping the first ply of flexible material from a second one of the second set of members to a second one of the first set of members;
providing a second ply of flexible material different from the first ply of flexible material, the second ply of flexible material having a width equal to a final width of the nonpneumatic tire;
wrapping the second ply of flexible material over the support structure and over itself in a circular direction to form an outer hoop configured to receive a circumferential tread;
curing the support structure and the outer hoop; and
removing the support structure and the outer hoop from the jig.

12. The method of claim 11 , wherein the first ply of flexible material is formed by at least two plies of flexible materials calendered together.

13. The method of claim 12 , wherein the at least two plies of flexible materials have a reinforcement material sandwiched therebetween.

14. The method of claim 11 , wherein the first ply of flexible material is a corded ply of flexible material.

15. The method of claim 11 , wherein the plurality of members are a plurality of pins.

16. The method of claim 11 , further comprising placing extruded rubber compound adjacent to some of the plurality of members to form fillets.

17. The method of claim 11 , wherein the wrapping of the first ply of flexible material includes wrapping the first ply of flexible material from the first one of the second set of members to the second one of the second set of members.

18. The method of claim 11 , wherein the wrapping of the first ply of flexible material includes wrapping the first ply of flexible material from the second one of the first set of members to a third one of the first set of members.

19. The method of claim 11 , wherein the wrapping of the first ply of flexible material from the first one of the first set of members to the first one of the second set of members includes extending the first ply of flexible material in a substantially radial direction.

20. The method of claim 11 , wherein the wrapping of the first ply of flexible material from the second one of the second set of members to the second one of the first set of members includes extending the first ply of flexible material in a substantially radial direction.

Assignees

• Bridgestone Americas Tire Operations Llc

Inventors

• Costlow Douglas B
• Haidet Andrew V
• Nesbitt Adam K
• Reinhardt Sharon E

Classifications

• B29D30/02

  Solid tyres {; Moulds therefor} · CPC title

• B60C7/146

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

• B60B2360/50

  Rubbers · CPC title

• B60B2310/204

  by moulding, e.g. injection moulding, i.e. casting of plastics material · CPC title

• B60B9/26

  comprising resilient spokes · CPC title