Pneumatic tire |
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| 申请号 | US14913600 | 申请日 | 2014-08-27 | 公开(公告)号 | US10071597B2 | 公开(公告)日 | 2018-09-11 |
| 申请人 | SUMITOMO RUBBER INDUSTRIES, LTD.; | 发明人 | Shintaro Tomita; Susumu Tanaka; Kazuo Asano; | ||||
| 摘要 | [Object] A pneumatic tire 2 that allows achievement of reduction of rolling resistance without taking influence on a mass into consideration, is provided.[Solution] A profile OL of the tire 2 includes a ground-contact surface 46 and a pair of side surfaces 48. In the profile OL, a zone from a point PB to a point PW is formed by three arcs. The arcs are a first arc, a second arc that extends almost outward from the first arc in the radial direction, and a third arc that extends almost outward from the second arc further in the radial direction. A ratio of a radius R2 of curvature of the second arc to a radius R1of curvature of the first arc is greater than or equal to 1.45 and not greater than 3.26. A ratio of a radius R3 of curvature of the third arc to the radius R1 of curvature of the first arc is greater than or equal to 0.45 and not greater than 0.56. Each sidewall 8 of the tire 2 has a first recess 50a and a second recess 50b that are recessed inward from the side surface 48. | ||||||
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