Title:
RUN-FLAT TIRE
Document Type and Number:
WIPO Patent Application WO/2020/129847
Kind Code:
A1
Abstract:
This run-flat tire (10) includes a side-reinforcing rubber (70) provided to a tire side portion (30). This run-flat tire (10) is provided with a reinforcing ring portion (80) formed from a resin material, having a predetermined width in the tire width direction, and which is an annular shape along the tire circumferential direction. The reinforcing ring portion (80) is provided to the outside in the tire radial direction of the carcass (40), and the modulus of elasticity of the reinforcing ring portion (80) of the central region (Ct) in the tire width direction is higher than the modulus of elasticity of the reinforcing ring (80) at any position of the shoulder region (Sh) in the tire width direction.
Inventors:
HASEGAWA KEIICHI
Application Number:
PCT/JP2019/048955
Publication Date:
June 25, 2020
Filing Date:
December 13, 2019
Export Citation:
Assignee:
BRIDGESTONE CORP (JP)
International Classes:
B60C1/00; B60C9/18; B60C17/00
Domestic Patent References:
| WO2015047780A1 | 2015-04-02 | |||
| WO2018230264A1 | 2018-12-20 |
Foreign References:
| JP2016193725A | 2016-11-17 | |||
| JP2004338572A | 2004-12-02 | |||
| JP2017206207A | 2017-11-24 | |||
| JP2010513659A | 2010-04-30 | |||
| JP2010264956A | 2010-11-25 |
Other References:
See also references of EP 3900949A4
Attorney, Agent or Firm:
MIYOSHI Hidekazu et al. (JP)
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