Heavy-load vehicle tire

A technology of tires and wheels, which is applied to vehicle parts, tire parts, tire treads/tread patterns, etc., and can solve problems such as dangerous stress and tension concentration

Active Publication Date: 2011-04-27
PIRELLI TYRE SPA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0020] This movement towards and away from each other creates particularly dangerous stresses and tension concentrations at the bottom of the trough

Method used

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  • Heavy-load vehicle tire
  • Heavy-load vehicle tire
  • Heavy-load vehicle tire

Examples

Experimental program
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Embodiment Construction

[0076] exist figure 1 Among them, a tire for a wheel according to the invention, in particular a tire to be mounted on a wheel of a heavy-duty vehicle, is indicated generally by reference numeral 1 .

[0077] Throughout the specification and in the following claims, the expression "heavy-duty vehicles" should be understood as referring to the "Classification and definition of power-driven vehicles and trailers", such as trucks, vans, tractors, buses, large vans and other vehicles of this type.

[0078] The tire 1 comprises a carcass structure 2 comprising at least one carcass ply 3 formed of reinforcing cords embedded in an elastomeric matrix.

[0079] The carcass ply 3 has opposite end strips 3 a engaged with respective bead cores 4 . The bead core 4 is located in a region 5 of the tire commonly referred to as the "bead".

[0080] On the peripheral edge of the bead core 4 there is provided an elastomeric filler occupying the space defined between the carcass ply 3 and the ...

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PUM

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Abstract

A tyre for vehicle wheels comprises an annular centre portion (10i) which is separated from each annular shoulder portion (10ii) by a respective circumferential side groove (14). At least one of the circumferential side grooves (14) comprises a rib (13) positioned inside it, which extends in a circumferential direction and comprises a plurality of portions of increased cross-section in the axial direction and a plurality of joining portions interposed between the consecutive increased cross section portions and connected to said increased cross-section portions in such a manner that the axial size of the cross-section of the rib (13) between portions of increased cross-section in the axial direction and joining portions increases on the whole in a gradual manner.

Description

technical field [0001] The present invention relates to a tire for a wheel, in particular a tire for a wheel of a heavy-duty vehicle. [0002] The invention also relates to a tread band for such tyres, in particular to a prefabricated tread band for application on worn tyres. Background technique [0003] Wheel tires for use on heavy-duty vehicles generally comprise a carcass structure comprising at least one carcass ply formed of reinforcing cords embedded in an elastomeric matrix. The carcass ply has end pads respectively engaged with annular anchoring structures. The anchoring structures are provided in the region of the tire commonly referred to as the "bead" and each generally consists of a substantially circumferential annular insert to which at least one filler insert is applied in a radially outer position on file. These annular anchoring structures are commonly referred to as "bead cores" and their function is to maintain the tire well secured to properly positio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C11/04
CPCB60C11/12B60C11/042B60C11/0306B60C11/0309B60C11/047
Inventor C·雷亚L·坎帕纳
Owner PIRELLI TYRE SPA
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