Pneumatic Tire and Method of Manufacturing the Same
AssigneesThe Yokohama Rubber Co., Ltd., Honda Motor Co., Ltd.
InventorsTakumi Sekiguchi, Tetsuya Mizone, Masahito Kanekuro
Life of this patent
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Abstract
Provided are a pneumatic tire T and a method of manufacturing the same. The pneumatic tire T includes: a tacky sealant layer 5 which is formed of a rubber component thermally decomposable with a peroxide, and which is disposed on the inner wall surface of the tire at least in a region corresponding to a tread portion 1; a cover rubber layer 6 which covers the tacky sealant layer 5. In the pneumatic tire T, the cover rubber layer 6 is provided with at least one gas vent hole 7a (7b) formed therein. This allows decomposition gas generated from the tacky sealant layer 5 to be discharged through the gas vent hole 7a (7b) to the outside of the tire.
Claims14
A pneumatic tire comprising:
- a tacky sealant layer which is formed of a rubber component thermally decomposable with a peroxide, and which is disposed on the inner wall surface of the tire at least in a region corresponding to a tread portion;
- a cover rubber layer which covers the tacky sealant layer,
- wherein the cover rubber layer is provided with at least one gas vent hole formed therein.
A method of manufacturing a pneumatic tire comprising the steps of:
- disposing a rubber component thermally decomposable with a peroxide on the inner wall surface of a tire at least in a region corresponding to a tread portion in a manner that the rubber component is covered with a cover rubber layer;
- forming a tacky sealant layer by decomposing the rubber component with the peroxide at the time of curing;
- and
- forming at least one gas vent hole in the cover rubber layer of the tire after the curing so as to discharge, from the gas vent hole, decomposition gas generated at the time of the curing.
Dependencies are inferred from the claim text.