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Load-bearing inflated tyre capable of increasing durability of tread belt

A technology of pneumatic tires and belt layers, applied to the reinforcement layer of pneumatic tires, heavy tires, tire parts, etc.

Inactive Publication Date: 2009-08-26
HANKOOK TIRE WORLDWIDE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The above-mentioned problem is concerned only with preventing the separation of the edge portions of the longest second belt layer and third belt layer among the plurality of belt layers.

Method used

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  • Load-bearing inflated tyre capable of increasing durability of tread belt
  • Load-bearing inflated tyre capable of increasing durability of tread belt
  • Load-bearing inflated tyre capable of increasing durability of tread belt

Examples

Experimental program
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Embodiment Construction

[0011] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0012] In the attached picture, figure 2 is a schematic sectional view of the belt arrangement structure of the present invention, image 3 It is a schematic sectional view of the reinforcing material of the main part of the present invention, wherein the dotted line indicates a schematic sectional view of the reinforcing material installed inside the tire, and the solid line indicates a schematic sectional view of the reinforcing material in an unfolded state.

[0013] Such as figure 2 and image 3 As shown, the tire according to the present invention includes: a tread portion 1, a sidewall portion 2 and a bead portion 3, and on the tread portion 1, first, second, third, and fourth belt layers 11, 12, 13 and 14 constitute the belt layer portion, and edge strips 5 are provided at the edge portions of the second belt layer 12 and the...

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PUM

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Abstract

The present invention provides a heavy duty pneumatic tire capable of improving the durability of a belt layer, comprising a tread portion (1), a sidewall portion (2) and a bead portion (3). First, second, third, and fourth belt layers (11, 12, 13, 14) are stacked on the tread portion (1) to constitute a belt portion (10). 12) and the edge portion of the third belt layer (13) are provided with edge strips (5), wherein the edge portion of the first belt layer (11) is provided with a reinforcing material (6), and the reinforcing material (6) ) are formed with inclined surfaces (61) on the outer surfaces of both ends. Thereby, the occurrence of separation at the edge portion of the first belt layer (11) can be suppressed, and the generated separation can be prevented from being transferred to the central portion of the belt layer, so that serious accidents due to minor separation can be prevented, and Significantly prolongs the durability life of the belt layer.

Description

technical field [0001] The present invention relates to a pneumatic tire for heavy duty that can improve the durability of the belt, and more specifically, to a pneumatic tire capable of preventing separation at the edge of the first belt layer and suppressing the separation of the generated separation to the belt layer. Pneumatic tire for heavy duty vehicles that shifts the central part and improves the durability of the belt. Background technique [0002] Separation between the belt layers mainly occurs at the edge of the belt because the edge of the belt is due to the combined effects of circular motion, shear motion, and flexion and extension compared with the center portion of the tread portion 1. , so the frequency of separation is higher at the edge of the belt layer with a relatively high degree of freedom. [0003] As an existing technology to solve the above problems, such as figure 1 As shown, edge strips 5 are provided at the edge portions of the second belt la...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60C9/24
CPCB60C9/1835B60C11/03B60C2200/06
Inventor 孔寿吉
Owner HANKOOK TIRE WORLDWIDE