Title:
空気入りタイヤ、及びその製造方法
Document Type and Number:
Japanese Patent JP4424989
Kind Code:
B2
Abstract:
In the pneumatic radial tire of the present invention, a total strength K0 of a belt layer 20 in a circumferential direction of the tire per unit of width at a tire equator surface position P0 is set greater than a total strength of the belt layer 20 in the circumferential direction of the tire per unit of width at a width position P2 corresponding to 2/3 of a maximum width of the belt layer having the tire equator surface CL as a center. In this way, it is possible to suppress the quantity consume of material in the belt layer 20, and to suppress the amount of expansion of tread rubber in a tread central region in the circumferential direction thereof when a standard internal pressure is charged and when the tire is rotated at high speed, thereby suppressing the growth of tire diameter. Since the expansion amount of the tread rubber in the circumferential direction is suppressed, the tension of the rubber is reduced. Therefore, it is possible to increase the resistance of the tread against the sticking of foreign matter, and even when foreign matter sticks in the tread, it is possible to suppress the growth of the crack.
More Like This:
| WO/1990/010548 | PNEUMATIC RADIAL TIRE |
| WO/2009/056907 | A PROCESS FOR BUILDING TYRES AND TYRE OBTAINABLE BY SAID PROCESS |
| JP3313775 | DIFFERENT DIAMETER BEAD TIRE AND MOUNTING METHOD THEREOF |
Inventors:
Mt. Yano
Hiroyuki Mori
Masaaki Nakamura
Seiji Itai
Hiroyuki Mori
Masaaki Nakamura
Seiji Itai
Application Number:
JP2003561901A
Publication Date:
March 03, 2010
Filing Date:
January 24, 2003
Export Citation:
Assignee:
Bridgestone Corporation
International Classes:
B60C9/18; B29D30/10; B29D30/70; B60C3/00; B60C9/00; B60C9/08; B60C9/20; B60C9/22; B60C9/26; B60C9/28; B60C19/00
Domestic Patent References:
| JP62037204A | ||||
| JP63049504A | ||||
| JP5294107A | ||||
| JP2000255209A | ||||
| JP61071204A | ||||
| JP6211003A | ||||
| JP6234304A | ||||
| JP4161328A | ||||
| JP2001501153A |
Attorney, Agent or Firm:
Atsushi Nakajima
Kato Kazunori
Katsuichi Nishimoto
Hiroshi Fukuda
Kato Kazunori
Katsuichi Nishimoto
Hiroshi Fukuda