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Reinforced bead structure for semi-steel tire

A bead and tire technology, which is applied to tire components, bead edges, vehicle components, etc., can solve the problems of heavy bead stress, poor stability, and low resistance to high loads on the bead, and reduce bead lip cracking Mouth, the effect of improving the load-bearing durability

Inactive Publication Date: 2019-12-27
SHOUGUANG FIREMAX TYRE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The application range of semi-steel radial tires is very wide. It can be used for cars, off-road vehicles, commercial vehicles, trailers, light-duty trucks, etc. Different models have different performance requirements for tires. Among them, light-duty truck and commercial vehicle tires are heavy-duty. The carcass cords of the tire are radially arranged, and the sidewall is relatively soft. During the running of the tire, the bead is subjected to a lot of force, the stability is poor, and the bead part has low resistance to high loads.

Method used

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  • Reinforced bead structure for semi-steel tire

Examples

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Embodiment 1

[0019] refer to figure 1 It can be seen that figure 1 The left halves of the main components mounted to different embodiments of semi-steel tires suitable for trucks or buses according to the present invention are respectively shown in cross-section.

[0020] This embodiment provides a reinforced bead structure for semi-steel tires, including an inner liner 1, the inner surface of the inner liner 1 is provided with a carcass ply 2, the ply is composed of radially arranged cords, the ply and the inner The liner 1 surrounds the tire from the inner side to the outer side to form a first bead 9 and a second bead 10 , the first bead 9 is sleeved in the second bead 10 , and the first bead 9 forms a triangular hollow structure. It is a rubber core; the rubber core includes a soft apex 3 and a hard apex 4 arranged vertically.

[0021] The first flange 9 and the second flange 10 form a certain space structure. In this embodiment, the surface of the space structure forms a rubber core...

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Abstract

The invention relates to the field of automobile tires, in particular to a reinforced bead structure for a semi-steel tire. The reinforced bead structure includes an inner lining layer, a carcass curtain layer is arranged on the inner surface of the inner lining layer, and a cord fabric layer is composed of radially arranged cords. The cord fabric layer and the inner lining layer surround from theinner side to the outer side of the tire to form a first flange and a second flange, the second flange sleeves the first flange, the first flange forms a triangular hollow structure which is a rubbercore, and the rubber core comprises a soft triangular rubber core and a hard triangular rubber core which are arranged along a vertical direction. The invention provides the reinforced tire bead structure of the semi-steel tire, which can effectively improve the bearing durability of the tire and reduce the fault phenomena, such as cracking, deformation, bulging, etc., of the tire lip.

Description

technical field [0001] The invention relates to the field of automobile tires, in particular to a reinforced bead structure for semi-steel tires. Background technique [0002] The application range of semi-steel radial tires is very wide, and can be used for cars, off-road vehicles, commercial vehicles, trailers, light-duty trucks, etc. Different models have different performance requirements for tires. Among them, light-duty truck and commercial vehicle tires carry heavy loads. The carcass cords of the tire are radially arranged, and the sidewall is relatively soft. During the running of the tire, the bead is under great force, the stability is poor, and the bead part has low resistance to high load. Under high load-bearing conditions, the bead lip is prone to failures such as cracks, deformation, and bulging. Therefore, how to improve the high load-bearing durability of light truck and commercial vehicle tires is one of the key projects of major tire companies at home and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C15/00B60C15/04B60C15/06
CPCB60C15/0009B60C15/04B60C15/0628B60C2015/042B60C2015/0678
Inventor 郭耐明林华
Owner SHOUGUANG FIREMAX TYRE CO LTD