Method of making pneumatic tire

A technology for pneumatic tires and carcass, which is applied to the reinforcement layer of pneumatic tires, heavy tires, aircraft tires, etc., and can solve the problems of overlapping layers

Inactive Publication Date: 2010-06-23
THE GOODYEAR TIRE & RUBBER CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of zigzag belts is that, on the edges near the shoulders, there are overlapping layers

Method used

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  • Method of making pneumatic tire
  • Method of making pneumatic tire
  • Method of making pneumatic tire

Examples

Experimental program
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Effect test

Embodiment Construction

[0020] definition

[0021] The following definitions are used in the present invention.

[0022] "Apex" means the unreinforced elastomer located radially above the bead core.

[0023] The "aspect ratio" of a tire means the ratio of the tire's section height (SH) to its section width (SW), multiplied by 100%, expressed as a percentage.

[0024] "Axial" and "axially" refer to lines or directions parallel to the tire's axis of rotation.

[0025] "Bead" means that portion of a tire comprising an annular tensile member, wrapped by cords, and shaped to fit a design rim, with or without other reinforcing elements such as a wire wrap, air kettle, apex, bead Toe rubber and chafer.

[0026] "Working belt" or "exposed breaker reinforcement" means an exposed ply of at least two parallel cords, woven or non-woven, under the tread, not secured to the bead, and positioned relative to the tire The equatorial plane has left and right cord angles from 10 degrees to 60 degrees.

[0027] "Bi...

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Abstract

The present invention relates to a method for producing a pneumatic tire which is composed of a tread, a carcass and a zigzag belt structure interposed between the carcass and the tread. The zigzag belt structure is formed of at least two layers of cords interwoven together from a strip of rubber reinforced with one or more cords, wherein the strip forming the zigzag belt structure is layed up in a first zigzag winding extending from a first lateral belt edge to a second lateral belt edge in a zigzag wavelength having a first amplitude W1 followed by a second amplitude W2, and a second zigzag winding formed of a zigzag wavelength having a first amplitude W2 followed by a second amplitude W1.

Description

technical field [0001] The present invention relates to a pneumatic tire having a carcass and belt reinforcement, and more particularly, the present invention relates to a radial tire for use in aircraft, truck and other heavy duty applications. Background technique [0002] In heavily loaded tires such as truck tires or aircraft tires, serrated belts have been used for belt wrap. Serrated belts eliminate the working belt ends of the shoulders. figure 1 An exemplary portion of a tire with a zigzag belt 5 is shown. The advantage of the serrated belt is that there is no working belt edge near the shoulders, which greatly improves tire durability. The disadvantage of the zigzag belt is that, on the edges near the shoulders, there are overlapping layers. In some areas, there are too many layers, eg typically 4 layers or more, and even in some locations 6 layers or more. It has been shown that the reduction of overlapping strips in the shoulder area can improve durability. T...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): B29D30/08
CPCB60C2200/02B29D30/70B60C9/263B60C2200/06
InventorF·P·C·G·乔治斯J·-M·A·F·吉拉尔R·W·克里尔V·B·马索内B·R·尼科拉斯
OwnerTHE GOODYEAR TIRE & RUBBER CO