Unlock instant, AI-driven research and patent intelligence for your innovation.

Tire for a vehicle carrying heavy loads

A heavy-duty, tire technology, used in heavy-duty tires, heavy-duty vehicles, vehicle components, etc., to solve problems such as failures

Active Publication Date: 2015-04-22
OCIETE DE TECH MICHELIN
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For heavy load-carrying machines such as construction machines used in mines, it is a known fact that the tread band of the tire fitted to said vehicle is subjected to repeated impacts which may apart from tearing from the tread band A failure that causes delamination between the different materials in the tire's crown, in particular between the tread band and the crown reinforcement, in addition to the material

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Tire for a vehicle carrying heavy loads
  • Tire for a vehicle carrying heavy loads
  • Tire for a vehicle carrying heavy loads

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] figure 1 The rolling surface 10 of the tread band 1 of the tire according to the invention is shown. The tread band has an overall width W and has a median plane that divides the tread band substantially into two halves of equal axial width (which is the same as figure 1 The line of intersection of the planes is represented by line XX').

[0035] This tread band 1 comprises, on each side of the median plane XX', a plurality of transverse grooves oriented substantially in the transverse direction (that is to say at an angle of less than 45° to the axis of rotation (the axis whose direction is perpendicular to the direction XX') Slot 2. Each transverse groove 2 has an average depth and two ends 21, 22 of which one, the axially outer end 21, opens to the edge of the tread band and the other, the axially inner end 22 is not open laterally. This inner end 22 is located at a non-zero distance from the median plane. An intermediate portion of width Lc extending axially be...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

Tyre intended to be fitted to a vehicle carrying heavy loads comprising a tread band (10) provided with a plurality of grooves (2) of transverse overall orientation, this tread band being characterized in that it is formed of at least three rubber materials: a first material M1, in the median part of the tread band, having a secant modulus at 10% elongation measured at a temperature of 23° C. at least equal to 4.0 MPa and hysteresis losses tan(δ)max greater than 0.19, a second material M2, on the edge parts, having a secant modulus at 10% elongation, measured at 23° C., lower than that of the first material, and a hysteresis losses value tan(δ)max lower than that of the first material and at least equal to 0.15, a third material M3, radially below the materials M1 and M2, having a hysteresis losses value tan(δ)max lower than 0.12, and furthermore, the first material M1 has a resistance to wear which is at least 15% better than that of the second and third materials, the latter two materials having substantially the same resistance to wear.

Description

technical field [0001] The present invention relates to tread bands (or tread tapes) for tires of heavy load-carrying machines, such as construction (or construction) machines, and more particularly to the material from which said tread bands are made. Background technique [0002] Tires for construction machines generally comprise a carcass reinforcement anchored in the beads, this reinforcement consisting of at least one ply of reinforcing elements capped radially on the outside by a crown reinforcement. This crown reinforcement is made of a plurality of plies of reinforcing elements crossed from one ply to the other and covered radially on the outside by the tread band, the purpose of which is to provide protection between the tire and its running Contact is provided between the surfaces and loads are transferred between the tire and the surfaces. [0003] In use, it is found that there are at least two desirable performance aspects, namely good resistance of the tread b...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B60C11/00B60C11/04
CPCB60C2011/0033B60C11/005B60C11/0311B60C2011/0025B60C11/0309B60C11/0058B60C2200/06
Inventor D·比雅维
Owner OCIETE DE TECH MICHELIN