Title:
PNEUMATIC TIRE
Document Type and Number:
WIPO Patent Application WO/2020/075346
Kind Code:
A1
Abstract:
In this pneumatic tire 1 that is attached to a standard rim R having a 5º taper in order to suppress rim slippage while achieving rim assemblability, a bead core 21 inclines within a range of 0-5º inclusive in a direction in which the bead core bottom 23 expands outward in the tire radial direction, from the inside toward the outside in the tire width direction; a bead part 20 has a bead base section 30, a toe section 32, and a heal section 35; the bead base section 30 inclines within a range of 8-12º inclusive in a direction in which the bead base section expands outward in the tire radial direction, from the inside toward the outside in the tire width direction; the heal section 35 has a radius of curvature R1 formed within the range of 25-30 mm inclusive; a rim cushion rubber 60 has a modulus at 100% elongation in the range of 5.0-8.0 MPa inclusive; and the displacement amount Dt of the toe section 32 before and after the tire is mounted to the standard rim R is in the range of 9.0-13.5 mm inclusive.
Inventors:
HONDA HIROAKI (JP)
Application Number:
PCT/JP2019/024138
Publication Date:
April 16, 2020
Filing Date:
June 18, 2019
Export Citation:
Assignee:
YOKOHAMA RUBBER CO LTD (JP)
International Classes:
B60C15/00; B60C9/08; B60C15/024; B60C15/04; B60C15/06
Foreign References:
| JP2018030529A | 2018-03-01 | |||
| JP2017074834A | 2017-04-20 | |||
| JP2006213241A | 2006-08-17 | |||
| JP2010012829A | 2010-01-21 | |||
| JP2000062418A | 2000-02-29 | |||
| JP2014156192A | 2014-08-28 |
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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