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

Tire cord and pneumatic tire including the same

A technology of tire cords and strands, which is applied to the reinforcement layer of pneumatic tires, motorcycle tires, tire parts, etc., can solve the problems of deterioration of handling stability and increase of deformation of tread parts.

Inactive Publication Date: 2010-12-22
SUMITOMO RUBBER IND LTD
View PDF7 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in vulcanized tires, it is difficult for the tread reinforcing layer to provide a sufficient reinforcing effect and a tightening effect on the tread

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
  • Tire cord and pneumatic tire including the same
  • Tire cord and pneumatic tire including the same
  • Tire cord and pneumatic tire including the same

Examples

Experimental program
Comparison scheme
Effect test
No Example Login to View More

PUM

PropertyMeasurementUnit
Finenessaaaaaaaaaa
Finenessaaaaaaaaaa
Login to View More

Abstract

A tire cord (10) comprises a core (11) made of aramid fibers twisted together at a twist pitch (P1), and a sheath (12) composed of at least one strand (14) made of aramid fibers and wound around the core at a winding pitch (P2), wherein the winding pitch (P2) is less than the twist pitch (P1), and the total fineness (A) of the aramid fibers constituting the core (11) is less than the fineness (B) of the aramid fibers constituting each strand (14) of the sheath (12). A pneumatic tire (1) comprising a reinforcing layer, e.g. tread reinforcing layer made of the tire cords (10).

Description

technical field [0001] The present invention relates to a tire cord and a pneumatic tire including the tire cord, and more particularly, to a structure of an aramid fiber cord capable of increasing the initial elongation of the tire cord. Background technique [0002] Generally, a pneumatic tire is provided with a tread reinforcing layer disposed radially outside of a carcass. [0003] It is known in the prior art that the term "tread reinforcement" includes layers of the so-called "cap ply" consisting of reinforcing curtains arranged at small angles (for example less than 10 degrees) with respect to the circumferential direction of the tyre. and a layer of so-called "belt" or "breaker" consisting of reinforcing cords arranged at a relatively large angle with respect to the circumferential direction of the tire. For example, in Japanese Patent Application Publication No. JP-2007-308101A, a cap ply composed of steel cords or aramid cords is disclosed. [0004] Pneumatic tir...

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): D02G3/48D02G3/28B60C9/11
CPCD02G3/48B60C9/0042B60C2200/10
Inventor 松永聪志
Owner SUMITOMO RUBBER IND LTD
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