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UHP tire for improving wetland performance

A tire and performance technology, applied in tire parts, tire tread/tread pattern, transportation and packaging, etc., can solve the problems that safety and stability cannot be guaranteed, and cannot meet the needs of automobile use, so as to improve safety and stability , Improve water breaking ability, suitable size effect

Inactive Publication Date: 2018-09-07
GITI RADIAL TIRE (ANHUI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing technology, under the premise of taking into account the tire handling performance, it is rare to improve the wet performance of the tire, resulting in the safety and stability of the tire driving in the wet cannot be guaranteed, and cannot meet the needs of the car.

Method used

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  • UHP tire for improving wetland performance
  • UHP tire for improving wetland performance
  • UHP tire for improving wetland performance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] see figure 1 with figure 2 , a UHP tire for improving wet performance, comprising a tread with a crown arc with a total length of TDW, and the relationship between the total length of the crown arc TDW and the nominal section width SN of the tire is 0.80≤TDW / SN≤0.82, preferably The ratio of TDW / SN is 0.81; the tread of the tire is equally divided into two parts with a crown arc length of 0.5TDW by the equatorial plane CL of the tire, and the crown arc length of each part is half of the total length of the tire crown arc. And each part of the crown arc length of 0.5TDW includes three sections of contour curves successively connected from the equatorial plane CL to the tire shoulder, so that on the tire meridian section, the contour curve of the tread extends from the tire equatorial plane to the tire shoulder. The intersection point of the surface profile to the tread end of the shoulder is divided into a first profile curve with an arc length of TW1, a second profile ...

Embodiment 2

[0047] see Image 6 The tread of the tire is provided with longitudinal main grooves and a plurality of pattern blocks defined by adjacent longitudinal main grooves, and the longitudinal main grooves include first longitudinal main grooves 1, second longitudinal main grooves opened sequentially in the tire width direction The longitudinal main groove 2, the third longitudinal main groove 3 and the fourth longitudinal main groove 4; the width of the first longitudinal main groove 1 is a, the width of the second longitudinal main groove 2 is b, the width of the third longitudinal main groove 3 is The width is c, the width of the fourth longitudinal main groove 4 is d, there is a relationship of (a / TDW): (b / TDW): (c / TDW): (d / TDW) = 0.09: 0.17: 0.17: 0.13, The sea-to-land ratio of the tire is controlled at about 36.3%, thereby optimizing the total groove area and the total contact area of ​​the tire; at the same time, (a / TDW): (b / TDW): (c / TDW): (d / TDW)=0.09:0.17:0.17:0.13, each ...

Embodiment 3

[0053] see Figure 6-8 , the pattern blocks include the outer pattern block 14, the first shoulder block 5 defined by the first longitudinal main groove 1 and the second longitudinal main groove 2, the second longitudinal main groove 2 and the third longitudinal main groove 3 defined The crown block 6, the second shoulder block 7 defined by the third longitudinal main groove 3 and the fourth longitudinal main groove 4, and the inner tread block 13, the inner tread block 13 is arranged on the fourth longitudinal main groove 4 away from One side of the second shoulder pattern block 7 and the outer pattern block 14 are arranged on the side of the first longitudinal main groove 1 away from the first shoulder pattern block 5, and the side of the inner pattern block 13 is provided when the tire is installed and used. The side close to the vehicle body and provided with the outer pattern block 14 is away from the vehicle body.

[0054] The first shoulder block 5 is provided with mor...

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Abstract

The invention discloses a UHP tire for improving wetland performance. The UHP tire for improving wetland performance comprises a tread with the total length of a crown arc being TDW. Longitudinal maingrooves extending in the circumferential direction of the tire are formed in the tread, and pattern blocks extending in the circumferential direction of the tire are formed between the longitudinal main grooves. The relationship that TDW / SN is greater or equal to 0.80 and less than or equal to 0.82 exists between the total length TDW of the crown arc and the nominal section width SN of the tire,and the relationship that TP / TDW is greater than or equal to 0.047 and less than or equal to 0.049 exists between the total length TDW of the crown arc and the height difference TP between center point of the crown arc and the end point of the crown arc. Each pattern block is designed with a thickened convex surface, so that the grounding edges of the pattern blocks present a convex state, and thedefect of the concave faces of grounding edges of the pattern blocks caused by the contraction of the tire compound is overcome; and at the same time, the grounding edges with convex surfaces improvethe water breaking capacity of the tire, effectively avoid the water slip during wheel driving, and improve the use safety and stability of the tire.

Description

technical field [0001] The invention relates to the technical field of tires, in particular to a UHP tire for improving wet performance. Background technique [0002] With the vigorous development of the car market, more and more cars have become an important means of transportation in people's daily life. The safe driving of vehicles is closely related to tires. UHP is the abbreviation of Ultra High Performance. UHP tires are ultra-high performance tires. Usually Assembled on luxury, coupe and other vehicles, the requirements for wet performance and handling performance of tires are relatively strict. [0003] When the car is driving on a rainy day, due to the accumulation of water on the road surface, if the accumulation of water between the tire and the road surface cannot be discharged in a timely and effective manner, the braking distance of the vehicle will become longer; and when the water pressure is too high, it will also make the tire Floating, thereby reducing th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C11/03B60C11/12
CPCB60C11/03B60C11/12B60C2011/0341B60C2011/0339B60C2011/1286
Inventor 高楠
Owner GITI RADIAL TIRE (ANHUI) CO LTD
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