Title:
PNEUMATIC TIRE
Document Type and Number:
Japanese Patent JP2019111889
Kind Code:
A
Abstract:
To suppress concentration of distortion in a periphery of a wind-up end part of a chafer layer in a pneumatic tire having the chafer layer in a bead part.SOLUTION: A pneumatic tire 1 includes a bead core 31, a bead filler 32, a carcass ply 4, a side wall rubber 21 which is arranged on a tire outer surface side of the carcass ply 4 and structures a tire outer side surface, a chafer layer 5 which is folded back from a tire inner surface side to the 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 tape rubber 6 and back surface pad rubber 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. The tape rubber 6 has a higher modulus than the side wall rubber 21, and the back surface pad rubber 23 has a higher modulus than the tape rubber 6.SELECTED DRAWING: Figure 2
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Inventors:
NAGAI KUNIHIKO
Application Number:
JP2017245822A
Publication Date:
July 11, 2019
Filing Date:
December 22, 2017
Export Citation:
Assignee:
TOYO TIRE & RUBBER CO
International Classes:
B60C15/06; B60C13/00
Domestic Patent References:
| JP2012025296A | 2012-02-09 | |||
| JP2009101943A | 2009-05-14 | |||
| JPH09315112A | 1997-12-09 | |||
| JPH0999715A | 1997-04-15 |
Attorney, Agent or Firm:
Samejima Mutsumi
Takuji Yamada
Yoshiyuki Maebori
Kawasaki Shigeo
Takuji Yamada
Yoshiyuki Maebori
Kawasaki Shigeo