Title:
空気入りタイヤ
Document Type and Number:
Japanese Patent JP6729107
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a tire excellent in turnability, steering stability and durability.SOLUTION: When an inner direction of a vehicle is defined as a back side and an outer direction of the vehicle is defined as a front side, a tread 4 of a tire 2 comprises a back part B positioned in the back side from an equator surface EL and a front part F positioned in the front side from the equator surface EL. A profile of a tread surface 24 at the back part B comprises a circular arc Cb1 extending from the equator surface EL, a circular arc Cb2 contacting the circular arc Cb1, and a circular arc Cb3 contacting the circular arc Cb2. A curvature radius Rb1 of the circular arc Cb1 is larger than a curvature radius Rb2 of the circular arc Cb2. The curvature radius Rb2 is larger than a curvature radius Rb3 of the circular arc Cb3. A profile of a tread surface 24 at the front part F comprises a circular arc Cf1 extending from the equator surface EL and a circular arc Cf2 contacting the circular arc Cf1. The curvature radius Rb1 is larger than the curvature radius Rf1.SELECTED DRAWING: Figure 2
Inventors:
Sugano Nobuhiro
Application Number:
JP2016137797A
Publication Date:
July 22, 2020
Filing Date:
July 12, 2016
Export Citation:
Assignee:
Sumitomo Rubber Industries, Ltd.
International Classes:
B60C11/00; B60C3/06; B60C5/00; B60C9/00
Domestic Patent References:
| JP2015101256A | ||||
| JP2003118317A | ||||
| JP2009137495A | ||||
| JP2009126288A |
Foreign References:
| WO2005068225A1 |
Attorney, Agent or Firm:
Kengo Oka
Sumitomo Norio
Kuroyoshi Murohashi
Hiroshi Kasakawa
Kei Someya
Yukari Imamura
Hiroomi Nakao
Sumitomo Norio
Kuroyoshi Murohashi
Hiroshi Kasakawa
Kei Someya
Yukari Imamura
Hiroomi Nakao