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

Pneumatic tire with fused cords

A technology of pneumatic tires and cords, applied to the reinforcement layer of pneumatic tires, tire parts, tires, etc., which can solve the problems of complicated tread retreading process, difficulty in removing steel cords, and tire scrapping

Active Publication Date: 2016-04-13
THE GOODYEAR TIRE & RUBBER CO
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although rust does not significantly affect the strength of the reinforcement, a large number of tires are scrapped if excessive erosion is observed in the top belt when the tread is cut from the tire in preparation for retreading
Additionally, the perforation of the top steel belt can complicate the retreading process because it is difficult to remove worn steel cords from the perforated area

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
  • Pneumatic tire with fused cords
  • Pneumatic tire with fused cords
  • Pneumatic tire with fused cords

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0049] In this example, the effect of using chemically fused cords in a retreadable truck tire is demonstrated. Polyethylene terephthalate cords were treated in a 20 wt % isocyanate organic solvent solution to form fused cords. The cords are then woven into a rubber compound and manufactured into the top breaker of a medium duty radial tire. The tire is pressurized to create perforations in the top belt. The tire tread is then cut for retreading, leaving the exposed breaker punctured. The perforation is easily repaired using a grinding wheel with no wear of the fused fibers.

[0050] image 3 and 4 Image showing the perforated area of ​​the damaged breaker layer after grinding. exist image 3 In , the repaired area of ​​the breaker made with fused cords (1,2) showed no wear, while the breaker made with steel cords (3) showed significant wear. Figure 4 shown image 3 A magnified view of the fused cord breaker area of ​​. Figure 4 Images 1 and 2 correspond to image ...

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

The present invention relates to a pneumatic tire comprising at least one pair of parallel annular beads, at least one carcass ply surrounding said beads, a carcass ply disposed on said carcass ply in the crown region of said tire at least two belt or breaker layers, a tread disposed on said belt or breaker layer, and a sidewall disposed between said tread and said beads, and wherein the radially top belt The strand or breaker layer is reinforced with organic polymer cords, wherein the organic polymer cords are chemically fused.

Description

technical field [0001] The present invention relates to pneumatic tires having fused cords. Background technique [0002] The treads of radial medium truck (RMT) tires are subject to punctures from stones and other sharp objects on the road. In many cases, while the puncture will not be deep enough to penetrate the beltpackage and damage the tire, it will be deep enough to expose the steel reinforcement cords of the beltpackage to water and air, and such exposure can cause the belt assembly to corrode. This problem is exacerbated when the tire is used in mixed conditions, for example partly on paved and partly on non-paved surfaces. Although rust does not significantly affect the strength of the reinforcement, a large number of tires are scrapped if excessive erosion is observed in the top belt when the tread is cut from the tire in preparation for retreading . Furthermore, the perforation of the top steel belt can complicate the retreading process because it is difficul...

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): B60C9/04D06M13/395D06M101/32
CPCB60C9/0042B60C9/2009B60C2009/2074Y10T152/1081B60C9/18B60C9/22B60C9/26B29D30/40B29D30/70B29D2030/381B29D2030/383
Inventor R.贝克A.哈迪S.J.A.因霍夫P.J.C.毛斯R.姆鲁克J.M.F.C.塔弘
Owner THE GOODYEAR TIRE & RUBBER CO