Pneumatic radial tire capable of promoting wetland grip performance

A radial tire and grip technology, which is applied to the reinforcement layer of pneumatic tires, tire parts, tire edges, etc., can solve the problems of improving wet grip, achieve excellent handling performance, and improve the wet grip performance of tires.

Active Publication Date: 2015-10-21
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 prior art, most ways to improve the wet grip of tires are to improve the tire tread pattern structure or the composition of the tire tread rubber, and there is no solution to improve the wet grip by changing the tire sidewall structure.

Method used

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  • Pneumatic radial tire capable of promoting wetland grip performance
  • Pneumatic radial tire capable of promoting wetland grip performance
  • Pneumatic radial tire capable of promoting wetland grip performance

Examples

Experimental program
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Embodiment Construction

[0021] A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0022] Such as figure 1 and 2 As shown, the pneumatic radial tire includes a carcass layer 1 and a bead portion 2, wherein the bead portion 2 has a single steel wire bead inside and is formed with a bead core 21, and the carcass layer 1 is wound around the bead core Turned up from inside to outside, the carcass layer 1 is composed of a main body portion 11 and a turned up portion 12, an apex 3 is arranged between the main body portion and the turned up portion, and the tire axially outer side of the turned up portion is arranged There are mouth protection glue 4. Between the axially outer side of the turn-up portion 12 of the carcass layer and the axially inner side of the spigot rubber 4, a sidewall reinforcing layer 5 (shaded in the drawing) is arranged along the turn-up portion. part).

[0023] figure 1 The reference sign ① in the ri...

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Abstract

The invention provides a pneumatic radial tire capable of promoting a wetland grip performance. The pneumatic radial tire capable of promoting the wetland grip performance comprises a tire body layer and a tire bead portion, the tire body layer winds a tire bead core in the tire bead portion and wraps the tire bead core from inside to outside in an inverse mode, the tire body layer is composed of one or more main body portions and one or more inverse wrapping portions, bead filler is arranged between the main body portions and the inverse wrapping portions, a rim cushion is arranged on the tire axial outer side of each inverse wrapping portion, and one or more tire sidewall strengthening layers are arranged on the positions from 40%-44% of the tire section height to 4.5-8% of the tire section height along each inverse wrapping portion between the tire axial outer side of the inverse wrapping portion of the tire body layer and the tire axial inner side of the corresponding rim cushion. According to the pneumatic radial tire capable of promoting the wetland grip performance, formulas and patterns are not changed, on the basis that excellent handling performance is guaranteed, a change of tire torsional rigidity is achieved through the additional arrangement of the tire sidewall strengthening layers on the tire sidewall positions and limit of the distribution ranges of the sidewall strengthening layers, and therefore the wetland grip performance of the tire is promoted.

Description

technical field [0001] The invention relates to the technical field of pneumatic tires, in particular to a pneumatic radial tire for improving the grip performance on wet ground. Background technique [0002] Wet grip performance is an important indicator of pneumatic tires. The formula or special pattern structure with very good wet performance is used on the market, but the wet grip level (European label wet grip, see image 3 ) test results are still unable to achieve A grade. Especially for SUV tires, handling is very important, especially when turning, changing lanes, sudden braking, etc. when driving fast, to ensure very high force transmission and quick response of the tire to the vehicle, these need to enhance the sidewall torsional rigidity is achieved. [0003] In the prior art, the improvement of the tire stiffness is mostly to install a reinforcing layer on the bead part of the tire to enhance the durability of the bead part and improve the stability of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C9/02B60C13/00B60C15/00
Inventor 陈云余本袆
Owner GITI RADIAL TIRE (ANHUI) CO LTD
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