Title:
PNEUMATIC TIRE
Document Type and Number:
WIPO Patent Application WO/2020/174807
Kind Code:
A1
Abstract:
This pneumatic tire 1 is provided with reinforcement rubber 19 that has a rubber hardness greater than the rubber hardness of rim cushion rubber 17 and that is disposed between: a rolled-back section 132 of a carcass layer 13; and sidewall rubber 16 and the rim cushion rubber 17. Moreover, the height H1 of a bead filler 12, with the rim diameter measurement point as a baseline, has a relationship with the tire cross-sectional height SH: 0.10 ≤ H1 / SH ≤ 0.23. Moreover, the height H2 of the reinforcement rubber 19, with the rim diameter measurement point as a baseline, has a relationship with the tire cross-sectional height SH: 0.40 ≤ H2 / SH ≤ 0.55. Moreover, the cross-sectional area S2 of the reinforcement rubber 19 in a cross-sectional view in the meridian direction of the tire has a relationship with the cross-sectional area S1 of the bead filler: 1.10 ≤ S2 / S1 ≤ 2.70.
Inventors:
KAMEDA NORIFUMI (JP)
Application Number:
PCT/JP2019/048347
Publication Date:
September 03, 2020
Filing Date:
December 10, 2019
Export Citation:
Assignee:
YOKOHAMA RUBBER CO LTD (JP)
International Classes:
B60C15/06
Foreign References:
| JP2010012881A | 2010-01-21 | |||
| JP2016078749A | 2016-05-16 | |||
| JP2001030722A | 2001-02-06 | |||
| JP2010120478A | 2010-06-03 | |||
| JPH06262914A | 1994-09-20 | |||
| JPH08207516A | 1996-08-13 | |||
| JP2002160510A | 2002-06-04 |
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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