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Patent Searching and Data


Title:
PNEUMATIC TIRE
Document Type and Number:
Japanese Patent JP2019111895
Kind Code:
A
Abstract:
To provide a tire of which durability is improved by suppressing distortion and heat generation in a periphery of a chafer wind-up end.SOLUTION: A pneumatic tire includes a bead core 31, a bead filler 32, a carcass ply 4, a side wall rubber 21, a chafer layer 5 which is folded back from a tire inner surface side to a tire outer surface side in peripheries of the bead core 31 and the bead filler 32 and is wound up around an outer surface of the carcass ply 4, and a pair of support rubbers 6 and 23 which are positioned between the side wall rubber 21 and the carcass ply 4 and are arranged so as to sandwich a wind-up end part 5b of the chafer layer 5 from both sides in a tire width direction. Modulus values of the pair of support rubbers 6 and 23 are higher than a modulus value of the side wall rubber 21. The pair of support rubbers do not contain resorcin, and N,N-dicyclohexyl-2-benzothiazolyl sulfenamide.SELECTED DRAWING: Figure 2

Inventors:
KAMATA SHINSAKU
Application Number:
JP2017245828A
Publication Date:
July 11, 2019
Filing Date:
December 22, 2017
Export Citation:
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Assignee:
TOYO TIRE & RUBBER CO
International Classes:
B60C1/00; B60C13/00; B60C15/00; B60C15/06; C08K5/46; C08L21/00; C08L61/12
Domestic Patent References:
JPH0999710A1997-04-15
JP2012025296A2012-02-09
JP2009101943A2009-05-14
JPH09315112A1997-12-09
JPS6383148A1988-04-13
JP2009292310A2009-12-17
JP2008069207A2008-03-27
Attorney, Agent or Firm:
Samejima Mutsumi
Takuji Yamada
Tsuyoshi Sato