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Tire for heavy vehicle

A technology for tires and crowns, applied to wheels, vehicle parts, tire parts, etc., can solve problems such as tire crown impact and tire damage, and achieve the effects of improving durability, improving load distribution, and optimizing ply connection

Inactive Publication Date: 2009-11-18
OCIETE DE TECH MICHELIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the rigidity increases, it also brings impacts on the tire crown, such as when driving over large rocks, as a result of the increased rigidity, it will cause irreparable tire damage

Method used

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  • Tire for heavy vehicle
  • Tire for heavy vehicle

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Experimental program
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Embodiment Construction

[0028] For ease of understanding, the figures are not shown to scale. The drawings show only a half view of the tire, which is continuous and symmetrical with respect to the XX' axis, which represents the circumferential mid-plane of the tyre.

[0029] The dimensions quoted are theoretical values, that is, reference values ​​used in tire manufacture; actual values ​​may differ slightly, especially as a result of uncertainties related to the manufacturing method of such tires.

[0030] Furthermore, with regard to the angle of the reinforcement of the ply, the value quoted is the minimum value, that is to say the value corresponds to the area of ​​the ply closest to the central axis of the tire. The angle of said reinforcement varies in the direction of the axis of the tyre, in particular as a result of the bending of the tyre.

[0031] figure 1 A radial section through a tire 1 manufactured according to the invention is depicted. A tire 1 of size 59 / 80R63 comprises a carcass...

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PUM

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Abstract

A tire for a heavy vehicle, comprising at least four working plies formed of reinforcing elements crossing from one ply to the other and at least one protection ply. According to the invention, the tire is completed on both sides of the median circumferential plane by a single working half-ply, the reinforcing elements of which meet the circumferential direction at an angle greater than 30 DEG , wherein the half ply is a radially inner surface adjacent to the more external radially continuous working ply, its axially outer end being axially outside the ends of the continuous working plies and the reinforcing elements of the half ply, the reinforcing elements of the continuous radially outermost working ply and the reinforcing elements of the protection ply having its end axially outside to the ends of the working plies being oriented in the same direction.

Description

technical field [0001] The invention relates to a tire with radial carcass reinforcement suitable for heavy vehicles such as transport vehicles or civil construction machinery. In particular, the invention relates to a tire having an axial width exceeding 37 inches. Background technique [0002] Such tires, usually subject to heavier loads, comprise a radial carcass reinforcement and a crown reinforcement consisting of at least two working crown plies formed by inextensible reinforcing elements from The plies cross each other from one ply to the other at an angle equal to or not equal to the circumferential direction between 10 and 45°. [0003] The crown reinforcement of radial-ply tires, especially in the case of tires of very large dimensions, is subject to considerable deformations which induce longitudinal and transverse shear stresses between the edges of the crossing plies (when the cords of the crossing plies Longitudinal shear is greater than transverse shear at s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C9/20
CPCB60C2009/2038B60C9/20B60C9/2006Y10T152/10765Y10T152/10801
Inventor L·邦迪
Owner OCIETE DE TECH MICHELIN
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