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Pneumatic tire

A technology of pneumatic tires and tires, which is applied to tire parts, tire treads/tread patterns, transportation and packaging, etc., to achieve the effects of improving handling stability and drainage, and improving handling stability and drainage

Inactive Publication Date: 2016-02-10
BRIDGESTONE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in such conventional tires, although wet performance and partial wear performance can be improved, there is still a demand for further improvement in steering stability and water drainage.

Method used

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  • Pneumatic tire
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] Hereinafter, embodiments of the present invention will be described by way of example with reference to the drawings.

[0029] figure 1 It is a developed view showing a tread pattern of a pneumatic tire (hereinafter also referred to as a tire) 1 according to an embodiment of the present invention. The tire 1 in the illustrated example is used for a small truck, and although not illustrated, this tire 1 includes: a carcass having a radial structure extending annularly between bead portions; a tire radial outside of a carcass provided on the tread portion; and a tread rubber arranged outside of a belt in the tire radial direction and used to form a tread contact surface.

[0030] Such as figure 1 As shown, the tire 1 has at least two main grooves 2 extending continuously in the tire circumferential direction on the tread contact surface, and in the illustrated example, the tire 1 has three main grooves 2 . In addition, this tire 1 includes: a first land portion 31 th...

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Abstract

The purpose of the present invention is to provide a pneumatic tire of which steering stability and drainage can be improved. The pneumatic tire of the present invention includes on a tread surface at least two main grooves extending continuously in a tire circumferential direction, and a first land part defined between the two main grooves, and is characterized in that the first land part is provided with: a first tilted groove having one end opened to the main groove on one side adjacent to the first land part and the other end terminating inside the first land part, the first tilted groove being tilted relative to a tire width direction; and a first notch having one end, as a vertex in the tire width direction, positioned at the outermost position in the tire width direction of the other end of the first tilted groove and the other end in the tire width direction which is opened to the main groove on the other side adjacent to the first land part.

Description

technical field [0001] The present invention relates to pneumatic tires. Background technique [0002] Conventionally, various pneumatic tires have been proposed, which have at least two main grooves extending continuously in the tire circumferential direction on the tread contact surface and rib-shaped land portions divided between the two main grooves, and the ribs have The land portion is provided with grooves extending in the tire width direction. For example, Patent Document 1 proposes a pneumatic tire in which a main groove at one end is disposed on a rib-shaped land portion for the purpose of simultaneously improving partial wear performance and wet performance including water drainage and wet handling stability. An inclined transverse groove that is open and terminated in the land portion at the other end, and extends in the tire width direction in a manner inclined toward the tire circumferential direction, and the rib-shaped land portion is further provided with o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C11/03B60C11/12
CPCB60C11/03B60C11/04B60C11/1392B60C2011/1209B60C2011/0365B60C2011/0383B60C2011/0344B60C2011/0372B60C11/12B60C11/0306B60C2011/0341B60C2011/0367B60C2011/0386B60C2011/129
Inventor 加藤庆一
Owner BRIDGESTONE CORP