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Method of designing tire and tire

A design method and tire technology, applied in tire tread/tread pattern, tire parts, transportation and packaging, etc., can solve the problems of loss of performance, affecting the freedom of tread pattern design, etc., and achieve the effect of reducing tire noise

Inactive Publication Date: 2011-08-17
BRIDGESTONE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is, the method of forming a wide circumferential groove in the center of the tread and the method of forming the circumferential length of the block irregularly affect the degree of freedom in the design of the tread pattern.
Therefore, if a unique tread pattern is adopted in order to reduce air column tube resonance noise and pitch noise, other performances required for tires such as performance on wet roads will be lost.

Method used

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  • Method of designing tire and tire
  • Method of designing tire and tire
  • Method of designing tire and tire

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Embodiment Construction

[0031] Next, an embodiment of a tire design method and a tire (pneumatic tire) according to the present invention will be described with reference to the drawings. In detail, (1) structure of a pneumatic tire, (2) tire design method, (3) operation effect, (4) modified example, (5) comparative evaluation, and (6) other embodiments will be described.

[0032] In addition, in the following drawings, the same or similar code|symbol is attached|subjected to the same or similar part. However, the drawings are schematic diagrams, and it should be noted that the ratio of each dimension is different from the real thing.

[0033] Therefore, specific dimensions and the like must be judged with reference to the following description. In addition, it is needless to say that there are parts in which the dimensional relationship is different and the ratio is different between the respective drawings.

[0034] (1) Structure of pneumatic tire

[0035] First, the configuration of a pneumat...

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Abstract

The invention provides a method of designing tires and the tires. The method of designing a tire which designs a tire provided with block rows each of which consists of a plurality of blocks sectioned by circumferential grooves and lateral grooves and which are formed in the circumferential direction of the tire. The method of designing a tire comprises a step (20) for determining the resonance frequency (f), i.e. the reference frequency of air column resonance generated from the tire, based on the ground contact length (I) of the tire when a regular internal pressure and a regular load are applied to the tire, and a step (30) for determining the number of pitches of the block row in such a manner that the secondary pitch noise frequency (fp2), i.e. the secondary component of the reference frequency of pitch noise caused by the block row, at the reference speed, i.e. the reference traveling speed of a vehicle to which the tire is attached, is deviated from the resonance frequency (f).

Description

technical field [0001] The present invention relates to a design method of a tire and a tire having a block row formed of a plurality of blocks divided by circumferential grooves and lateral grooves and formed along the tire circumferential direction. Background technique [0002] The main causes of tire noise, which is the noise generated by the tire rolling on the road surface, include the air column resonance sound generated by the air column tube formed by the road surface and the circumferential groove such as the main groove extending along the tire circumferential direction, Pattern vibration noise (pitch noise) caused by the impact of the tread formed with lateral grooves on the road surface. [0003] Conventionally, as a method of reducing air columnar tube resonance noise, a method of forming a wide circumferential groove in the center of the tread is known (for example, Patent Document 1). [0004] Also, as a method of reducing pitch noise, a method of making the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C19/00B60C11/03
CPCB60C99/006B60C11/0318B60C11/11
Inventor 樱庭一树
Owner BRIDGESTONE CORP
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