Title:
Pneumatic tire
Document Type and Number:
Japanese Patent JP6249930
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a pneumatic tire capable of reducing vehicle outside sound while reducing rolling resistance.SOLUTION: A pneumatic tire 1 is formed with grooves in a tread part 10 in which SW/OD that is a ratio between a total width SW and an outside diameter OD satisfies "SW/OD≤0.3". In a ground contact region G of the tread part, when setting a groove area ratio to a ground contact area as GR, setting a ground contact width as W, setting a region having a width of 50% of the ground contact width W with a tire equator line CL as the center as a center region AC, setting the groove area ratio in the center region AC as GCR, setting ground contact regions on outer sides of the center region AC in the tire width direction as shoulder regions AS, and setting the groove area ratio in the shoulder region AS as GSR, the ground contact region of the tread part is formed so as to satisfy "10[%]≤GR≤25[%]" and "GCR≤GSR".
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Inventors:
Kubota Masayoshi
Yuji Minami
Yuji Minami
Application Number:
JP2014239147A
Publication Date:
December 20, 2017
Filing Date:
November 26, 2014
Export Citation:
Assignee:
THE YOKOHAMA RUBBER CO.,LTD.
International Classes:
B60C11/03; B60C3/04
Domestic Patent References:
| JP2012162194A | ||||
| JP6183214A | ||||
| JP7172110A | ||||
| JP2011207283A | ||||
| JP201328289A |
Foreign References:
| WO2013014949A1 |
Attorney, Agent or Firm:
Atsushi Aoki
Tetsuro Shimada
Shinji Mitsuhashi
Takuya Shinoda
Hisato Kato
Tone Yuuki
Tetsuro Shimada
Shinji Mitsuhashi
Takuya Shinoda
Hisato Kato
Tone Yuuki
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