Title:
RUN FLAT TIRE
Document Type and Number:
WIPO Patent Application WO/2008/001773
Kind Code:
A1
Abstract:
A run flat tire having reinforced rubber layers (9a, 9b) disposed in the side wall parts
has an annular swollen part (10) and an annular second bead (1b). The annular swollen
part (10) is formed on the outer side, in the lateral direction of the tire, of a
bead part (1) disposed on the outer side of a vehicle, and has an inner peripheral surface
(11) facing the outer peripheral curved surface of a rim flange when a specified
rim is installed on the tire. The annular second bead (1b) is disposed in the annular
swelled part (10). Both the reinforced rubber layers (9a, 9b) disposed on both
sides have a rubber hardness in the range from 65° to 82°. Belt layers
(7) disposed on the lower side of the tread part (4) have longitudinal bending rigidity
in the range from 0.9 to 2.1 × 106 N.m2.
Inventors:
SEGAWA MASAHIRO (JP)
HANA KAZUTAKA (JP)
MATSUYAMA KOJI (JP)
HANA KAZUTAKA (JP)
MATSUYAMA KOJI (JP)
Application Number:
PCT/JP2007/062806
Publication Date:
January 03, 2008
Filing Date:
June 26, 2007
Export Citation:
Assignee:
TOYO TIRE & RUBBER CO (JP)
SEGAWA MASAHIRO (JP)
HANA KAZUTAKA (JP)
MATSUYAMA KOJI (JP)
SEGAWA MASAHIRO (JP)
HANA KAZUTAKA (JP)
MATSUYAMA KOJI (JP)
International Classes:
B60C17/00; B60C9/18; B60C9/22; B60C11/00; B60C11/03; B60C15/02; B60C15/06
Domestic Patent References:
| WO2006028083A1 | 2006-03-16 | |||
| WO2006085450A1 | 2006-08-17 |
Foreign References:
| JPS51116507A | 1976-10-14 | |||
| JP2000343912A | 2000-12-12 |
Attorney, Agent or Firm:
OZAKI, Yuzo et al. (13-9 Nishinakajima 5-chome,Yodogawa-ku, Osaka-shi, Osaka 11, JP)
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