Title:
HIGH PERFORMANCE FLAT PNEUMATIC RADIAL TIRE
Document Type and Number:
Japanese Patent JP3749351
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To improve maneuvering performance such as turning property at high speed together with braking/driving performance simultaneously with improvement of durability of a bead part by specifying the height of a side wall part, and setting the tensile elastic modulus of a side wall rubber forming the side wall part in a specified range.
SOLUTION: In this pneumatic radial tire of aspect ratio under 60% provided with a tread part 2, a pair of side wall parts 3 continued to this, and a pair of bead parts 4 contined to them, the side wall part 3 is made into the height extended up to 50-85% of the sectional height of tire from the bead part 4 in a no load state, when the tire is mounted to an applied rim and set into the prescribed air pressure. A side wall rubber forming the side wall part 3 is formed so that tensile elastic modulus (M100) at 100% elongation is 70-110kgf/ cm2. The JIS spring A hardness of a tread rubber is 50-70 degrees, and the value of M100 is favorable to be 5-30kgf/cm2.
Inventors:
Toshio Suganuma
Tetsuro Kobayashi
Yoshihiro Hosoya
Takahiro Higashijima
Tetsuro Kobayashi
Yoshihiro Hosoya
Takahiro Higashijima
Application Number:
JP13547497A
Publication Date:
February 22, 2006
Filing Date:
May 26, 1997
Export Citation:
Assignee:
Bridgestone Corporation
International Classes:
B60C3/04; B60C13/00; B60C9/00; B60C9/08; B60C9/18; B60C9/20; B60C9/22; B60C11/00; (IPC1-7): B60C13/00; B60C3/04; B60C9/00; B60C9/08; B60C9/18; B60C9/20; B60C9/22; B60C11/00
Domestic Patent References:
| JP2070509A | ||||
| JP5319032A | ||||
| JP3200404A | ||||
| JP61295103A | ||||
| JP3220003A | ||||
| JP7009604U | ||||
| JP6219112A | ||||
| JP63141809A | ||||
| JP6191209A | ||||
| JP6297913A | ||||
| JP5201202A |
Attorney, Agent or Firm:
Atsushi Nakajima
Kato Kazunori
Katsuichi Nishimoto
Hiroshi Fukuda
Kato Kazunori
Katsuichi Nishimoto
Hiroshi Fukuda