Reinforced tire bead structure with edge coated with nylon wrapping cloth and preparation method thereof

A nylon-wrapped and reinforced technology, which is applied in the direction of tires, tire edges, tire parts, etc., can solve problems such as cracks in the bead, separation of steel wires and rubber, deformation, etc., to reduce failure rates, reduce stress concentration, good transition effect

Pending Publication Date: 2019-08-27
GITI RADIAL TIRE (ANHUI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Domestic commercial trucks generally have the phenomenon of overloading and driving for a long time. During the use of tires, cracks and deformations often occur in the bead parts, which become frequent parts of tire failures, affecting the life and performance of tires. There are many, such as carcass, steel wir

Method used

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  • Reinforced tire bead structure with edge coated with nylon wrapping cloth and preparation method thereof
  • Reinforced tire bead structure with edge coated with nylon wrapping cloth and preparation method thereof
  • Reinforced tire bead structure with edge coated with nylon wrapping cloth and preparation method thereof

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[0036] The present invention will be further explained below in conjunction with the drawings:

[0037] Such as figure 1 The shown reinforced bead structure with nylon cloth edging includes an inner liner 2, a carcass cord 1, a steel wire cloth composite, and a wear-resistant rubber 6 wrapped on the outside of the bead. , The sidewall rubber and the traveller 5, the hard apex 4 and the soft apex 3 wrapped by the carcass cord 1 and the steel wire cloth 7, the steel wire cloth composite part includes the steel wire cloth 7 and the nylon cloth 8, so The nylon covering cloth 8 is arranged as a single layer and covered at the outer end of the steel wire covering 7 and has an inverted U-shaped cross section. The inner end of the nylon covering 8 is set at the outer turn-up end of the carcass cord 1 and the wire covering 7 between the outer turn-up end points, and the nylon wrap 8 is provided with an angle for reducing stress concentration, and the outer turn-up end point of the steel w...

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Abstract

The invention discloses a reinforced tire bead structure with an edge coated with nylon wrapping cloth and a preparation method thereof. The nylon wrapping cloth is arranged as a single layer and wraps around the end point of the outer side of a steel wire wrapping cloth, and the cross section is in an inverted U shape. The end point of the inner side of the nylon wrapping cloth is disposed between the reservedly wrapped end point of the outer side of a tire body cord fabric and the reservedly wrapped end point of the outer side of the steel wire wrapping cloth; and the nylon wrapping cloth has an angle of reducing stress concentration, and the height of the reservedly wrapped end point of the outer side of the steel wire wrapping cloth is larger than the height of the reservedly wrapped end point of the outer side of the tire body cord fabric. A layer of nylon wrapping cloth is used for edge covering at the end point of the outer side of the steel wire wrapping cloth and extends between the reservedly wrapped end point of the tire body cord fabric and the steel wire wrapping cloth, and the stress concentration of a tire bead part is reduced. An angled nylon wrapping cloth is additionally arranged between the outer end point of the steel wire wrapping cloth and rubber and between the reservedly wrapped end point of a carcass and the steel wire wrapping cloth to reduce stress concentration. The rigidity of the nylon wrapping cloth is higher than that of the rubber, the rigidity of the tire bead part can be improved, and the failure rate of the tire bead part of the tire is reduced.

Description

technical field [0001] The invention relates to the technical field of tires, in particular to a nylon-wrapped reinforced bead structure and a preparation method thereof. Background technique [0002] Domestic commercial trucks generally have the phenomenon of overloading and driving for a long time. During the use of tires, cracks and deformations often occur in the bead parts, which become frequent parts of tire failures, affecting the life and performance of tires. There are many, such as carcass, steel wire cloth, apex rubber, wear-resistant rubber, etc. According to the finite element analysis, the stress concentration at the end point of the carcass cord wrapping and the outer end point of the steel wire cloth will easily lead to the separation of the steel wire and rubber at the end point. resulting in failure. Contents of the invention [0003] The object of the present invention is to provide a reinforced bead structure wrapped with nylon cloth and its preparatio...

Claims

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Application Information

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IPC IPC(8): B60C15/00B29D30/32
CPCB29D30/32B60C15/0009
Inventor 李竹林
Owner GITI RADIAL TIRE (ANHUI) CO LTD
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