Title:
タイヤ
Document Type and Number:
Japanese Patent JP7324133
Kind Code:
B2
Abstract:
Provided is a run-flat tire that can suppress localized deformation even during run-flat traveling and improve run-flat durability. This run-flat tire has a reinforcement rubber layer 50 disposed on a sidewall 12, wherein: a part of the reinforcement rubber layer 50 is disposed inside a bead filter 22 in the tire width direction; in a cross-sectional view in the tire width direction, a tire radial length Hb from a tire radial outer end 22A of the bead filler 22 to a tire radial inner end 50B of the reinforcement rubber layer 50 is 70% or more of a tire radial length Ha from the tire radial outer end 22A of the bead filler 22 to a tire radial inner end 22B of the bead filler 22; and within a range from the tire radial outer end 22A of the bead filter 22 to the tire radial inner end of the reinforcement rubber layer 50, a variation range of the total thickness obtained by summing the thickness of the bead filter 22 and the thickness of the reinforcement rubber layer 50 is 10% or less.
Inventors:
Yusuke Inui
Application Number:
JP2019223434A
Publication Date:
August 09, 2023
Filing Date:
December 11, 2019
Export Citation:
Assignee:
TOYO TIRE Co., Ltd.
International Classes:
B60C17/00; B60C15/06
Domestic Patent References:
| JP2013154819A | ||||
| JP2017121888A | ||||
| JP201964485A | ||||
| JP5155209A | ||||
| JP2017197478A |
Foreign References:
| EP1388436A1 |
Attorney, Agent or Firm:
Tetsuo Shiba
Hiroaki Hoshino
Hiroaki Hoshino
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