Title:
TIRE
Document Type and Number:
WIPO Patent Application WO/2023/042474
Kind Code:
A1
Abstract:
Provided is a small-diameter tire that can achieve both wet performance and wear resistant performance. This tire comprises: a pair of bead cores; a carcass layer spanning the bead cores; a belt layer disposed radially outside of the carcass layer; and a tread part. The tire outer diameter OD (mm) is in a range of 200 ≤ OD ≤ 660, and the tire total width SW (mm) is in a range of 100 ≤ SW ≤ 400. Furthermore, the groove area ratio Aa of the tread part is in a range of 0.008 ≤ Aa / OD ≤ 0.150, and the relationship between the groove area ratio Ace of a center region of the tread part and the groove area ratio Ash of a shoulder region of the tread part is Ace / Ash > 1.
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Inventors:
KODA HIRAKU (JP)
FUJISHIRO MASAYUKI (JP)
TATENO HARUKA (JP)
FUJISHIRO MASAYUKI (JP)
TATENO HARUKA (JP)
Application Number:
PCT/JP2022/018297
Publication Date:
March 23, 2023
Filing Date:
April 20, 2022
Export Citation:
Assignee:
YOKOHAMA RUBBER CO LTD (JP)
International Classes:
B60C3/04; B60C9/00; B60C11/03; B60C11/13; B60C15/04
Domestic Patent References:
| WO2019171553A1 | 2019-09-12 | |||
| WO2020122165A1 | 2020-06-18 |
Foreign References:
| JPH03189208A | 1991-08-19 | |||
| JPH03169720A | 1991-07-23 | |||
| JP2008001163A | 2008-01-10 | |||
| JP2005289325A | 2005-10-20 |
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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