Tire with laminate and method of making same

Patent metadata

Field	Value
Publication number	US-10967678-B2
Application number	US-201515109776-A
Country	US
Kind code	B2
Filing date	Jan 8, 2015
Priority date	Jan 16, 2014
Publication date	Apr 6, 2021
Grant date	Apr 6, 2021

Abstract

A method of laminating a vulcanized tire includes providing a vulcanized tire having a circumferential tread and a pair of sidewalls constructed of a base rubber. The method further includes cleaning the circumferential tread, providing a laminate, and forming a plurality of holes in the laminate. The method also includes applying the laminate to at least a portion of one of the circumferential tread and a sidewall of the vulcanized tire. The method further includes applying pressure to the laminate, thereby evacuating air between the laminate and the circumferential tread of the vulcanized tire and curing the laminate.

First claim

What is claimed is:

1. A method of applying a laminate to a cured tire, the method comprising:
providing a cured tire having a circumferential tread constructed of a base material, wherein the circumferential tread has a plurality of tread elements, each of the plurality of tread elements having a top surface and a plurality of side surfaces, and wherein the circumferential tread further has a plurality of grooves disposed between the plurality of tread elements;
providing an uncured laminate;
puncturing the uncured laminate to form a plurality of holes in the uncured laminate;
placing the uncured laminate about the circumferential tread of the cured tire, such that the uncured laminate covers at least some of the plurality of tread elements and at least some of the plurality of grooves, wherein the laminate has greater snow traction than the base material;
stitching the uncured laminate to the cured tire by applying pressure to the uncured laminate;
buffing off the uncured laminate from a top surface of the plurality of tread elements; and
heating the uncured laminate and the cured tire.

2. The method of claim 1 , further comprising cleaning the circumferential tread of the cured tire prior to wrapping the uncured laminate about the circumferential tread.

3. The method of claim 1 , wherein the cured tire is a new tire.

4. The method of claim 1 , wherein the cured tire is a used tire.

5. The method of claim 1 , wherein the laminate has substantially the same modulus of elasticity as the base material.

6. The method of claim 1 , wherein the heating the uncured laminate is performed in a vacuum bag.

7. The method of claim 1 , wherein the uncured laminate is a sheet of uncured laminate.

8. The method of claim 1 , wherein the stitching is performed by a roller having projections that create holes in the uncured laminate.

9. The method of claim 1 , wherein the heating of the uncured laminate and the cured tire includes heating the uncured laminate and the cured tire at a temperature of 100°-200° C.

10. A method of laminating a vulcanized tire comprising:
providing a vulcanized tire having a circumferential tread with a plurality of grooves, and a pair of sidewalls constructed of a base rubber;
cleaning the circumferential tread;
providing a laminate;
forming a plurality of holes in the laminate;
applying the laminate to at least a portion of one of the circumferential tread and at least one of the grooves of the vulcanized tire;
applying pressure to the laminate, thereby evacuating air between the laminate and the circumferential tread of the vulcanized tire;
grinding away the laminate from a top surface of the plurality of tread elements; and
curing the laminate.

11. The method of claim 10 , wherein the laminate has substantially the same modulus of elasticity as the base rubber.

12. The method of claim 11 , wherein the laminate has greater snow traction than the base rubber.

13. The method of claim 10 , wherein the curing the laminate is performed in a vacuum bag.

14. The method of claim 10 , wherein the laminate is a sheet of laminate.

15. The method of claim 10 , wherein the laminate is applied to the circumferential tread of the vulcanized tire with a cushion extruder.

16. The method of claim 10 , wherein the laminate is an uncured laminate.

17. The method of claim 10 , wherein the step of applying pressure to the laminate includes using a roller to apply pressure to the laminate.

18. The method of claim 17 , wherein the roller has projections that create holes in the laminate.

19. The method of claim 10 , wherein the curing of the laminate includes curing the laminate at a temperature of 100°-200° C.

Assignees

• Bridgestone Americas Tire Operations Llc

Inventors

• Clemmer Kathleen A
• Rodak John P

Classifications

• B29D30/68

  Cutting profiles into the treads of tyres · CPC title

• B29D2030/728

  Decorating or marking the sidewalls after tyre vulcanization · CPC title

• B29D30/66

  Moulding treads on to tyre casings, e.g. non-skid treads with spikes · CPC title

• B29D2030/582

  Venting air inclusions, e.g. air trapped between tread and carcass · CPC title

• B60C2011/0025

  Modulus or tan delta · CPC title