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Low-noise pneumatic tire

A pneumatic tire, low-noise technology, applied to tire parts, tire tread/tread pattern, transportation and packaging, etc., to achieve the effect of pattern noise reduction, good wet performance, and tire pattern noise

Active Publication Date: 2018-08-21
GITI RADIAL TIRE (ANHUI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the design of the above-mentioned existing tires, while considering the wet performance and noise performance of the tire, it is also necessary to take into account its dry performance and partial wear resistance, so it is impossible to obtain extremely ideal results in terms of tire wet performance and noise performance

Method used

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Experimental program
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Embodiment Construction

[0031] A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0032] The terminology of tires is explained as follows:

[0033] (1) Pattern basic knots: In the tire circumferential direction, the basic units with the same elements are called pattern basic knots.

[0034] (2) Pattern pitch: The length of each pattern basic node in the tire circumferential direction is called the pattern pitch. The basic sections of the pattern are classified according to the pattern pitch value. If a certain pattern block is designed with three pitches, it means that the pattern block has three pattern pitch values ​​in the tire circumferential direction, which are generally recorded as PA, PB and PC, and The values ​​of the three are in descending order.

[0035] (3) Pattern style: If a pattern block has two basic patterns with different pattern elements in the tire circumferential direction, it is said that the patter...

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Abstract

The invention provides a low-noise pneumatic tire. The low-noise pneumatic tire comprises a tread as well as circumferential grooves and transverse grooves formed in the thread, wherein deep grooves,shallow grooves and notch grooves are formed sequentially in a first shoulder transverse groove and a second shoulder transverse groove from tire shoulders to the middle of the tread; one end of eachdeep groove is close to the ground end part of the tread, one end of each notch groove is close to and communicated with the corresponding first shoulder transverse groove, and the shallow grooves areused for communicating the deep grooves with the notch grooves. By means of three-section groove design of the shoulder transverse grooves, parameters such as length, width and depth of the three sections of grooves are reasonably configured, further, by means of technical means such as diverse and continuous longitudinal groove design, long and short groove alternate configuration and the like on close-to-center inner side blocks and close-to-center outer side blocks, so that noise of tire patterns is reduced, and good wet grip performance of the tire is guaranteed.

Description

technical field [0001] The invention relates to the technical field of tires, in particular to a low-noise pneumatic tire. Background technique [0002] In order to improve the noise performance of pneumatic tires, it is more effective to reduce the sea-to-land ratio of the tread pattern by reducing the number of circumferential grooves and transverse grooves, reducing the width of the pattern groove, etc., but the reduction of the sea-to-land ratio of the tread pattern will also cause As a result, the volume of the groove cavity decreases and the rigidity of the tread increases, thereby affecting the wet performance of the tire. Therefore, the improvement direction of the tire's wet and noise performance is often opposite. Therefore, it is necessary to find a wet area that can take both tires into consideration when designing the tire pattern. and noise performance designs. [0003] In the existing design, the inventors of Yokohama Rubber and other companies have taken car...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C11/03B60C11/12
CPCB60C11/0302B60C11/032B60C11/1236B60C11/1259B60C11/1272B60C2011/0339
Inventor 杨申夏国华何昀枭周涛余苗苗
Owner GITI RADIAL TIRE (ANHUI) CO LTD