Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Steel cords for tire reinforcement

A technology of steel cords and filaments, used in textile cables, transportation and packaging, textiles and papermaking, etc., can solve the problems of the failure load of the cord cannot meet the requirements, the high wear of the crimping equipment, and the high continuous failure rate of the cord. , to achieve the effect of low strength loss, low continuous failure rate and low wear

Inactive Publication Date: 2011-12-07
NV BEKAERT SA
View PDF7 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

which leads to a high rate of continuous failure of the cord
Accordingly, the failure load of the cord cannot meet the requirements
Also due to the processing of space waves, the wear of crimping equipment is high

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
  • Steel cords for tire reinforcement
  • Steel cords for tire reinforcement
  • Steel cords for tire reinforcement

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] exist figure 1 A first preferred embodiment is shown in . The steel cord 50 has a core layer including four first steel filaments 10 and an outer layer including six second steel filaments 20 . The outer layer is helically twisted around the core with a core lay length of 23mm and the diameter of the steel filaments 20 is 0.38mm.

[0041] The four first steel filaments 10 are wave-formed in a single plane and are untwisted, ie they are parallel to each other. figure 2 and image 3 A side view and a front view of the first and second steel filaments 10 are shown, respectively. The wave height H is 0.65mm, and the wavelength L is 5.13mm, while the diameter D f is 0.38mm.

[0042] Six second steel filaments 20 were preformed multilaterally and twisted together with an outer lay length of 23 mm. Figure 4 and Figure 5 A side view and a front view of the second steel filament 20 are shown, respectively. The X axis is parallel to the longitudinal and central axis 80 ,...

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

PropertyMeasurementUnit
Lay lengthaaaaaaaaaa
Wave heightaaaaaaaaaa
Wave heightaaaaaaaaaa
Login to View More

Abstract

A steel cord (50) includes a core layer and an outer layer. The core layer comprises a number of first steel filaments (10) and the outer layer comprises a number of second steel filaments (20). The outer layer is helically twisted around the core layer. The first steel filaments have a lay length greater than 310 mm. At least one first steel filament (10) is preformed in a wave form in one plane. At least one second steel filament (20) is polygonally preformed.

Description

technical field [0001] The invention relates to a steel cord comprising a core layer with one or more preformed filaments and an outer layer. Steel cords can be used in reinforcements such as belts or cushioning structures of tires. Background technique [0002] Steel cords comprising preformed filaments are known in the prior art. A 4+6 structure of steel cords has also been disclosed. [0003] EP 0301776A1 provides a 4+6 silk cord structure. It discloses a low-section radial tire reinforced with steel cords consisting of two layers, a core comprising 3 or 4 filaments and an outer layer comprising a plurality of equal or Fewer filaments than core filaments, filament diameters substantially equal, core and outer filaments having the same hand but different pitch twists, tire aspect ratio up to 0.85. The patent document also discloses that the silk cord structure can be 4+6. However, the steel cords according to the patent documents have incomplete rubber penetration. A...

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
IPC IPC(8): D07B1/06
CPCD07B2201/2028D07B2201/2039D07B2201/2029D07B2501/2046D07B1/0626D07B2201/2007D07B2401/208D07B2201/2008D07B2201/2061D07B1/062D07B1/0646D07B1/0653D07B2201/2023D07B2201/2025Y10T428/249922D07B2801/12
Inventor 齐立勋(斯图亚特)
Owner NV BEKAERT SA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com