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Title:
PNEUMATIC TIRE
Document Type and Number:
WIPO Patent Application WO/2013/121659
Kind Code:
A1
Abstract:
Provided is a pneumatic tire which achieves the improvement of the flexibility of setting of steering stability on a dry road surface and steering stability on a wet road surface while securing a conductive path and suppressing the deterioration of rolling resistance. Tread rubber (5) of a pneumatic tire includes tread rubber (5) that forms a ground contact surface. When the ground contact surface is divided into two parts: a mounting inner side (WD1) and a mounting outer side (WD2), the tread rubber (5) has an inner cap part (52) that forms an inner ground contact surface and is produced from non-conductive rubber, and an outer cap part (53) that forms an outer ground contact surface. The inner cap part (52) has a branched conductive part (54) that is formed from conductive rubber ranging from the ground contact surface of a mounting outer end (52a) of the inner cap part (52) to the side surface or bottom surface of a mounting inner end (52b) while branching off at a plurality of positions. The outer cap part (53) does not have branched conductive rubber. The branched conductive part (54) is formed from the conductive rubber with a rubber hardness different from that of the non-conductive rubber that forms the inner cap part (52).

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Inventors:
KAWAKAMI KAZUKI (JP)
Application Number:
PCT/JP2012/081696
Publication Date:
August 22, 2013
Filing Date:
December 06, 2012
Export Citation:
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Assignee:
TOYO TIRE & RUBBER CO (JP)
International Classes:
B60C19/08; B60C5/00; B60C11/00
Foreign References:
JP2001018302A2001-01-23
JPH1134611A1999-02-09
JPH1081783A1998-03-31
JP4783479B12011-09-28
JPH1076810A1998-03-24
JP2004507397A2004-03-11
JPH11227415A1999-08-24
JP4611451B12011-01-12
JP2009161070A2009-07-23
Attorney, Agent or Firm:
UNIUS PATENT ATTORNEYS OFFICE (JP)
Patent business corporation ユニアス international patent firm (JP)
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Claims:



 
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