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Patent Searching and Data


Title:
PNEUMATIC TIRE
Document Type and Number:
WIPO Patent Application WO/2014/129654
Kind Code:
A1
Abstract:
A ratio between the total width (SW) and outer diameter (OD) of a pneumatic tire (1), which has an asymmetrical pattern formed by grooves (12, 16) formed on a tread part (10), satisfies the relationship SW/OD ≤ 0.3. If a contact patch width in a contact patch area (G) in the tread part is denoted as CW, and a groove area ratio is denoted as GR, and, when the pneumatic tire is mounted on a vehicle, a contact patch groove area ratio of a tire inside area (Ai), which spans from a tire equator line (CL) to the vehicle side in the contact patch area, is denoted as GRi, and a contact patch groove area ratio of a tire outside area (Ao), which spans from the tire equator line to the opposite side of the vehicle side in the contact patch area, is denoted as GRo, the contact patch area is formed in such a manner as to satisfy 0.75 ≤ CW/SW ≤ 0.9, 10 ≤ GR ≤ 25 [%], and GRi < GRo.

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Inventors:
KUBOTA, Masataka (LTD. HIRATSUKA FACTORY 2-1, Oiwake, Hiratsuka-sh, Kanagawa 01, 〒2548601, JP)
MINAMI, Yuji (LTD. HIRATSUKA FACTORY 2-1, Oiwake, Hiratsuka-sh, Kanagawa 01, 〒2548601, JP)
Application Number:
JP2014/054532
Publication Date:
August 28, 2014
Filing Date:
February 25, 2014
Export Citation:
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Assignee:
THE YOKOHAMA RUBBER CO., LTD. (36-11, Shimbashi 5-chome Minato-k, Tokyo 85, 〒1058685, JP)
International Classes:
B60C11/03; B60C3/04; B60C5/00; B60C11/04
Foreign References:
JP2009149124A2009-07-09
JP2013028289A2013-02-07
JP2009040156A2009-02-26
JP2012056479A2012-03-22
Attorney, Agent or Firm:
AOKI, Atsushi et al. (SEIWA PATENT & LAW, Toranomon 37 Mori Bldg. 5-1, Toranomon 3-chome, Minato-k, Tokyo 23, 〒1058423, JP)
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