Title:
PNEUMATIC RADIAL TYRE FOR HIGH INNER PRESSURE AND HEAVY LOAD
Document Type and Number:
Japanese Patent JPH01257605
Kind Code:
A
Abstract:
PURPOSE:To improve eccentric wear resistance and cut resistance and the like of the title tyre by crossing plural rubberized layers consisting of a cord made of specific material, having specific strength and initial modulus respectively at a specific cord angle, to the equatorial surface of the tyre so as to form a belt layer. CONSTITUTION:A tyre is provided with a carcass 1 with toroidal radial construction consisting of mutually parallel plural ply of organic fibre cord. A tread 3 is reinforced by belts 2 for surrounding the crown of the carcass 1. In this case, the belts 2 are formed by crossing the specific plural rubberized layers with each other a specific angle. In other words, each rubberized layer uses so-called 66 nylon polymer and is formed with a cord having the characteristic in which strength is 9.0g/d or more the status of a dipped cord treated by a binding agent after thread plying and initial modulus is less than 80g/d. The cord angle of each rubberized layer to the equatorial surface of the tyre is set within a range from 10 deg. to 70 deg..
Inventors:
KADOTA KUNINOBU
IMAI ISAMU
INADA NORIO
IMAI ISAMU
INADA NORIO
Application Number:
JP31144388A
Publication Date:
October 13, 1989
Filing Date:
December 09, 1988
Export Citation:
Assignee:
BRIDGESTONE CORP
International Classes:
B60C9/00; B60C9/08; B60C9/18; B60C9/20; D02G3/48; (IPC1-7): B60C9/00; B60C9/20; D02G3/48
Domestic Patent References:
| JPS61268504A | 1986-11-28 | |||
| JPS6234805A | 1987-02-14 | |||
| JPS60197407A | 1985-10-05 |
Attorney, Agent or Firm:
Akihide Sugimura (1 outside)
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