Title:
TIRE
Document Type and Number:
WIPO Patent Application WO/2023/228464
Kind Code:
A1
Abstract:
The problem addressed by the present invention is to provide a tire that improves steering stability and that can maintain plunger durability even when made light in weight. The solution for this problem is a tire (100), equipped with a belt (60) that comprises at least two belt layers (60A, 60B) disposed in a tread section (30) and belt reinforcement layers (70A, 70B) that are disposed on the outer sides, in the tire radial direction, of the belt (60). The tire (100) is characterized in that: the belt layers (60A, 60B) and the belt reinforcement layers (70A, 70B) are formed by covering a reinforcement material with an elastomer; the reinforcement material of the belt layers (60A, 60B) is metal monofilaments with a filament diameter d of less than 0.30 mm; and the reinforcement material of the belt reinforcement layers (70A, 70N) is organic fiber cords with a break strength of at least 6.5 cN/dtex, a cutting elongation of at least 10%, and an elastic modulus, when stretched by 7%, of at least 6.0 mN/(dtex∙%).
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Inventors:
MATSUMOTO KYOHEI (JP)
QIAN WU (JP)
QIAN WU (JP)
Application Number:
PCT/JP2023/000859
Publication Date:
November 30, 2023
Filing Date:
January 13, 2023
Export Citation:
Assignee:
BRIDGESTONE CORP (JP)
International Classes:
B60C9/20; B60C9/00; B60C9/18; B60C9/22
Foreign References:
| JP2020132056A | 2020-08-31 | |||
| JP2021024510A | 2021-02-22 | |||
| JP2021165087A | 2021-10-14 | |||
| JP2021115984A | 2021-08-10 | |||
| JP2020066394A | 2020-04-30 | |||
| JP2011189873A | 2011-09-29 | |||
| JP2008013035A | 2008-01-24 |
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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