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Load-bearing inflatable radial tire

A technology for radial tires and tire circumference, applied to the reinforcement layer of pneumatic tires, tire parts, transportation and packaging, etc., which can solve the problems of tire durability, partial wear resistance, and handling stability that cannot be well balanced

Pending Publication Date: 2019-01-01
ZHONGCE RUBBER GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These belt structures have the problem that tire durability, partial wear resistance, and handling stability cannot be well balanced on the same tire after the molding and vulcanization processes

Method used

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  • Load-bearing inflatable radial tire
  • Load-bearing inflatable radial tire
  • Load-bearing inflatable radial tire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] by figure 1 The belt structure shown is taken as an example to illustrate (refer to Figure 4 mark). In this structure, there are tension-resistant belt layers 3 and 4 intersecting with each other at 10° to 45° to the tire circumferential direction, and a narrow protective belt layer located in the center of the crown covering the tension-resistant belt layer 5. At both ends of the protective belt layer 5 and above the tension-resistant belt layer 4, there are 2 or 3 layers of reinforcing belt layers 6 arranged circumferentially and parallel to each other. The outer endpoints of the reinforcing belt 6 are closer to the centerline of the tread than the wider of the tension-resistant belts 3,4.

[0031] Since the reinforcing belt layers 6 in the above structure are arranged in parallel along the circumferential direction, in the forming and vulcanizing process, it is impossible to compensate for the tension of the belt through angle changes like other tension-resistant...

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PUM

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Abstract

The invention provides a load-bearing inflatable radial tire according to the problems of the existing belt ply structure that the formed and vulcanized tire cannot be balanced on the same tire in theaspects of durability, eccentric wearing resistance and operation stability. An expansion rate of a central area of the belt ply on the innermost side is 1.2 to 1.9 percent, a tension-elongation curve of a zero-degree belt ply steel wire has a mutation point of the curve trend when the elongation rate is in a range of 0.8 percent to 1.4 percent, and a mutation point area is located in a range ofthe 40 to 110 N of the tension; and by adopting the load-bearing inflatable radial tire, the performances can be well balanced.

Description

technical field [0001] The invention belongs to pneumatic radial tires, in particular to pneumatic radial tires for load. Background technique [0002] Figure 1~3 The belt layer structure in the schematic cross-sectional view of the tire shown is a structure widely used in China at present. These belt structures have the problem that tire durability, partial wear resistance, and handling stability cannot be well balanced on the same tire after the molding and vulcanization processes. This problem has become conspicuous especially under the current trend of increasing groove depth. Contents of the invention [0003] The present invention provides a load-bearing pneumatic radial tire that suppresses the problem of delamination at the edge of the belt layer and can also improve handling stability, specifically including the following technical solutions: [0004] Pneumatic radial tires for heavy loads, said tires have at least one belt layer composed of steel wires arrange...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C9/18
CPCB60C9/18
Inventor 王红彦叶佳蕾吴晓东王志权
Owner ZHONGCE RUBBER GRP CO LTD
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