Title:
TIRE
Document Type and Number:
WIPO Patent Application WO/2022/215434
Kind Code:
A1
Abstract:
Provided is a small-diameter tire that can inhibit a reduction in wear performance and improve fuel consumption performance. A tire 1 comprises: a tread part 2 having tread rubber 15 comprising cap tread 151 and under tread 152; a pair of bead cores 11; a carcass layer 13 bridging the bead cores 11; and a belt layer 14 disposed radially outward of the carcass layer 13. The outer diameter OD (mm) of the tire is in the 200 ≤ OD ≤ 660 range, the total width SW (mm) of the tire is in the 100 ≤ SW ≤ 400 range, the breaking strength TB_cap (MPa) of the cap tread 151 is in the 12 ≤ TB_cap ≤ 35 range, and the relationship between the outer diameter OD of the tire and the amount of change between the ground contact area CA80 at 80% of maximum load capacity and the ground contact area CA120 at 120% of maximum load capacity satisfies 0.0004×OD ≤ {(CA120–CA80)/CA80} ≤ 0.0030×OD.
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Inventors:
FUJISHIRO MASAYUKI (JP)
KODA HIRAKU (JP)
TATENO HARUKA (JP)
KODA HIRAKU (JP)
TATENO HARUKA (JP)
Application Number:
PCT/JP2022/010998
Publication Date:
October 13, 2022
Filing Date:
March 11, 2022
Export Citation:
Assignee:
YOKOHAMA RUBBER CO LTD (JP)
International Classes:
B60C3/04; B60C11/00
Foreign References:
| JPH08108710A | 1996-04-30 | |||
| JP2017100727A | 2017-06-08 | |||
| JP2020199836A | 2020-12-17 | |||
| JP2006298158A | 2006-11-02 | |||
| JP2006168638A | 2006-06-29 | |||
| JP2019099062A | 2019-06-24 |
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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