Title:
RUN-FLAT TIRE
Document Type and Number:
WIPO Patent Application WO/2021/079708
Kind Code:
A1
Abstract:
Provided is a run-flat tire with improved run-flat durability, reduced rolling resistance, and reduced weight. A first bead filler 6 is disposed on the outer circumferential side of a bead core 5. A second bead filler 7 is disposed along a wind-up part of a carcass layer 4 on the outside, in the tire width direction, of the wind-up part of the carcass layer 4. The thickness G of a side reinforcement layer 11 on a first reference line L1, the thickness G1 of the side reinforcement layer 11 on a second reference line L2, and the thickness G2 of the side reinforcement layer 11 on a third reference line L3 satisfy the relationships 0.8 × G ≤ G1 ≤ 1.0 × G and 0.5 × G ≤ G2 ≤ 0.7 × G.
Inventors:
TAKEMORI RYOHEI (JP)
Application Number:
PCT/JP2020/037233
Publication Date:
April 29, 2021
Filing Date:
September 30, 2020
Export Citation:
Assignee:
YOKOHAMA RUBBER CO LTD (JP)
International Classes:
B60C3/04; B60C9/18; B60C15/06; B60C17/00
Domestic Patent References:
| WO2014141880A1 | 2014-09-18 | |||
| WO2019070085A1 | 2019-04-11 | |||
| WO2017188409A1 | 2017-11-02 |
Foreign References:
| JP2017052432A | 2017-03-16 | |||
| JP2016132343A | 2016-07-25 | |||
| JP2016132342A | 2016-07-25 | |||
| JP2018099922A | 2018-06-28 | |||
| JP2019064485A | 2019-04-25 | |||
| JP2014054967A | 2014-03-27 | |||
| JP2010137853A | 2010-06-24 |
Attorney, Agent or Firm:
SEIRYU PATENT PROFESSIONAL CORPORATION et al. (JP)
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