Title:
空気入りタイヤ
Document Type and Number:
Japanese Patent JP7479595
Kind Code:
B2
Abstract:
Provided is a pneumatic tire in which uneven wear of a tread portion is sufficiently suppressed during high-speed running, and which has excellent durability. This pneumatic tire has a side portion and a clinch portion, wherein: in a meridian cross section, the distance Ha from a bead baseline to the outside portion in the width direction of the clinch portion is greater than the distance Hb to the inside portion in the width direction; the complex modulus E*s of the side portion, as measured at 70°C, a frequency of 10 Hz, an initial distortion of 5%, and a distortion rate of 1%, is less than the complex modulus E*c of the clinch portion; and, furthermore, formula (1) and formula (2) below are satisfied, where Wt is the cross-sectional width of the tire when installed to a standardized rim and filled with air to an internal pressure of 250 kPa, Dt is the outer diameter, and the virtual volume V is the volume of the space occupied by the tire. 1600≤Dt2×π/4/Wt≦2827.4V+1.5×107/Wt≦2.88×105
Inventors:
▲濱▼村 健二
Kawai Guo Aoi
Toya Subaru
Kawai Guo Aoi
Toya Subaru
Application Number:
JP2021075801A
Publication Date:
May 09, 2024
Filing Date:
April 28, 2021
Export Citation:
Assignee:
Sumitomo Rubber Industries, Ltd.
International Classes:
B60C15/06; B60C11/13; B60C13/00
Domestic Patent References:
| JP2015160485A | ||||
| JP2020093681A | ||||
| JP2006159944A | ||||
| JP2017052329A | ||||
| JP2003136920A |
Foreign References:
| WO2015182153A1 |
Attorney, Agent or Firm:
Tetsushi Kamidai
Naomi Jinno
Satoshi Shimizu
Naomi Jinno
Satoshi Shimizu
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