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A pneumatic tire

A technology of pneumatic tires, tires, applied in the field of tires with foam or foam strips, which can solve the problems of noise reduction performance, difficult application, etc.

Active Publication Date: 2021-06-04
THE GOODYEAR TIRE & RUBBER CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this has the disadvantage of limiting the noise attenuation performance due to the reduced amount of foam, and is also difficult to apply during the manufacture of tires

Method used

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  • A pneumatic tire
  • A pneumatic tire
  • A pneumatic tire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0093] figure 1 is a schematic section of a bus or truck tire 1 . The tire 1 has a tread 10, an inner liner 13, a belt structure including a plurality of belt plies 12, a carcass ply 9, two sidewalls 2, and a bead filler apex 5 and beads 4. The two bead regions 3. The carcass ply 9 comprises a pair of axially opposite end portions 6 each of which is associated with a respective one of the beads 4 . Each axial end portion 6 of the carcass ply 9 can be turned up and around the corresponding bead 4 into a position for anchoring each axial end portion 6 . The turned-up portion 6 of the carcass ply 9 may engage the axially outer surfaces of the two flippers 8 and the axially inner surfaces of the two chippers 7 . Such as figure 1 As shown in , the example tread 10 may have four circumferential grooves 20 each substantially defining a U-shaped opening in the tread 10 . According to a first embodiment of the invention, the tire 1 has a circumferential layer 30 of noise-attenuati...

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Abstract

In a first aspect of the invention, a pneumatic tire is provided, the tire comprising two spaced apart bead portions, a tread portion , a pair of sidewalls extending radially inward from axially outer edges of the tread portion to join the respective bead portions, the axially outer edges of the tread portion defining a tread width, a carcass, an innerliner covering the carcass and defining a tire cavity, and a metal coated foam material attached to the innerliner within the tire cavity. In a second aspect, the invention is directed to a method of manufacturing a tire.

Description

technical field [0001] The present invention relates to a pneumatic tire comprising a metal-coated foam material. Furthermore, the invention relates to a method of manufacturing a tire comprising metal-coated foam or foam strips. Background technique [0002] Tires make noise when driving. It is known in the art that at least a portion of this noise can be attenuated by including foam material within the tire cavity to attenuate tire cavity noise. An example of such a noise attenuating material is given in US Patent Publication No. 20120125507A1, where a single layer of rubber foam is applied to the innerliner of a tire. However, relatively thick layers cause internal strains in the foam due to flexing and bending, thus resulting in limited durability due to possible occurrence of fatigue cracks. Another disadvantage resides in the insulating effect of the foam material, which may lead to heat build-up, especially in the region radially below the tread or the belt. In ot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C19/00B60C5/00
CPCB60C19/002B60C5/00B60C2200/04B60C2200/06B60C1/0008B60C5/14
Inventor A·F·尼库拉J·A·韦索P·J·C·莫斯B·迪谢纳P·J·C·巴斯汀P·勒克莱尔
Owner THE GOODYEAR TIRE & RUBBER CO