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Patent Searching and Data


Title:
PNEUMATIC TIRE
Document Type and Number:
WIPO Patent Application WO/2014/030476
Kind Code:
A1
Abstract:
Provided is a pneumatic tire having excellent tire noise performance obtained while the wet performance during running is maintained. A pneumatic tire is configured so that half-tread regions (11a, 11b) on both sides in the widthwise direction of the tire are provided with: a wave-shaped circumferential main groove group including outer circumferential main grooves (13, 15) and an inner circumferential main groove (17); land sections (23, 25); and lug grooves (33), sipes, or lug groove and sipe combinations (37) formed by combining lug grooves (35) and sipes (36). The lug grooves (33, 37) are configured in such a manner that, in the half-tread region (11b) on the first side, wave-shaped crests are connected at both ends of the land section (25) in the widthwise direction of the tire, and in such a manner that, in the half-tread region (11a) on the second side, wave-shaped troughs are connected at both ends of the land section (23) in the widthwise direction of the tire. As a result of this configuration, the first length (L1) of the lug grooves (33) in the extension direction thereof in the half-tread region (11b) on the first side is greater than the second length (L2) of the lug grooves (37) in the extension direction thereof in the half-tread region (11a) on the second side.

Inventors:
KOISHIKAWA YOSHIFUMI (JP)
Application Number:
JP2013/069789
Publication Date:
February 27, 2014
Filing Date:
July 22, 2013
Export Citation:
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Assignee:
YOKOHAMA RUBBER CO LTD (JP)
International Classes:
B60C11/04; B60C5/00; B60C11/12; B60C11/13
Foreign References:
JP2012153156A2012-08-16
JPS59176104A1984-10-05
JPH06320913A1994-11-22
JP2000158916A2000-06-13
JP2012116389A2012-06-21
JPH0866923A1996-03-12
Attorney, Agent or Firm:
GLOBAL IP TOKYO (JP)
Global IP Tokyo patent business corporation (JP)
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