Title:
空気入りタイヤ
Document Type and Number:
Japanese Patent JP6819379
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a pneumatic tire 12 capable of achieving reduction in road noise while maintaining durability in a run-flat traveling.SOLUTION: In a tire 12, an outside end PA of an apex 44 is located further inside than an outside end LS of a clinch 18. A loss tangent value Tk of a buffer layer 32 is smaller than a loss tangent value Tc of the clinch 18. A hardness Hk of the buffer layer 32 is lower than a hardness Hc of the clinch 18. The buffer layer 32 overlaps each of a first point P1 and a second point P2 in a radial direction. A contour of an outside surface SF extending from a maximum width position WX to a position CE corresponding to an outside end of a contact surface between the tire 12 and a ground surface is represented by a single arc having a radius between 50 and 60 mm. A position TS where a support layer 30 has a maximum thickness ti is located further inside than the position WX.SELECTED DRAWING: Figure 2
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Inventors:
Koyama Hayama
Application Number:
JP2017050685A
Publication Date:
January 27, 2021
Filing Date:
March 16, 2017
Export Citation:
Assignee:
Sumitomo Rubber Industries, Ltd.
International Classes:
B60C17/00; B60C1/00; B60C15/06
Domestic Patent References:
| JP2014201230A | ||||
| JP2012096656A | ||||
| JP2015199465A | ||||
| JP2016068682A | ||||
| JP2010202000A | ||||
| JP2004276823A | ||||
| JP2006347200A | ||||
| JP2007045333A | ||||
| JP2013071673A | ||||
| JP2015199473A | ||||
| JP2000108618A | ||||
| JP2002301914A | ||||
| JP10035219A |
Foreign References:
| WO2012018106A1 |
Attorney, Agent or Firm:
Kengo Oka
Kuroyoshi Murohashi
Hiroshi Kasakawa
Kei Someya
Yukari Imamura
Hiroomi Nakao
Kuroyoshi Murohashi
Hiroshi Kasakawa
Kei Someya
Yukari Imamura
Hiroomi Nakao