Title:
PNEUMATIC TIRE AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2022/124012
Kind Code:
A1
Abstract:
Provided is a pneumatic tire which makes it possible to suppress variation in thickness of a sealant layer by reducing overlapping regions of a sealant material, and achieve improvement in the adhesiveness of a sound absorption layer with respect to the sealant layer. The present invention is provided with: a sealant layer 60 disposed to the tire internal cavity side of an inner liner 50; and a sound absorption layer 70 disposed to the tire internal cavity side of the sealant layer 60. The sealant layer 60 is formed from a belt-shaped sealant material 61 that is stuck to an inner surface 501 of the inner liner 50 while being rotated. The sealant layer 60 has: a plurality of annular circulation parts 62 that are in parallel to the tire circumferential direction and that are disposed in parallel to each other in a state where the sealant material 61 is disposed adjacent to the same in the tire width direction; and a plurality of shift parts 63 which are each provided to a portion of a circulation part 62 in the tire circumferential direction and at each of which the sealant material 61 is shifted to a circulation part 62 located adjacent on one side in the tire width direction.
Inventors:
MATSUNOBU YUKO (JP)
Application Number:
PCT/JP2021/041856
Publication Date:
June 16, 2022
Filing Date:
November 15, 2021
Export Citation:
Assignee:
TOYO TIRE CORP (JP)
International Classes:
B60C19/12; B29D30/06; B60C5/00
Domestic Patent References:
| WO2015115486A1 | 2015-08-06 |
Foreign References:
| JP2020093546A | 2020-06-18 | |||
| JPS5893612A | 1983-06-03 | |||
| JP6184523B2 | 2017-08-23 |
Attorney, Agent or Firm:
SHIBA Tetsuo et al. (JP)
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