Title:
RUN-FLAT RADIAL TIRE
Document Type and Number:
Japanese Patent JP2015151019
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a run-flat radial tire that can suppress a buckling phenomenon from occurring at a tire side part during run-flat travelling.SOLUTION: A tire 10 comprises: a carcass 14 extending across a pair of bead parts 12; an inclined belt layer 16 that is provided outside in a tire radial direction of the carcass 14 and constituted of at least one belt ply; a tread part 20 that is provided outside in the tire radial direction of the belt layer 16 and has a plurality of circumferential grooves 21 formed; and side reinforcing rubber 24 that is provided at a tire side part 22 and extended along an inner face 14A of the carcass 14 from the bead part 12 side to the tread part 20 side to overlap a belt ply 16A with the maximum width, where an overlapping width P between the belt ply 16A and the rubber in the tire width direction is set to have a length equal to 20% or more of a section height SH, and an upper end part 24B of the tread part 20 side is positioned closer to outside in the tire width direction than a groove bottom 21AB of a circumferential groove 21A provided outermost in the tire width direction.
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Inventors:
SAKURAI KENICHI
Application Number:
JP2014026752A
Publication Date:
August 24, 2015
Filing Date:
February 14, 2014
Export Citation:
Assignee:
BRIDGESTONE CORP
International Classes:
B60C17/00; B60C3/04; B60C9/02; B60C11/04
Domestic Patent References:
| JP2004017668A | 2004-01-22 | |||
| JP2005119384A | 2005-05-12 |
Attorney, Agent or Firm:
Atsushi Nakajima
Kato Kazunori
Hiroshi Fukuda
Kato Kazunori
Hiroshi Fukuda