Check patentability & draft patents in minutes with Patsnap Eureka AI!

Method and system for producing a precured tread strip

A technology for pre-vulcanized tires and tread bands, which can be used in tires, applications, household appliances, etc., and can solve problems such as reduced performance and poor adhesion.

Inactive Publication Date: 2011-02-16
BRIDGESTONE CORP
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, some tests on retreaded tires have shown that the bond between the new tread and the retreaded carcass is often poor, so while not actually compromising the safety of said retreaded tires, at least some degrades performance

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
  • Method and system for producing a precured tread strip
  • Method and system for producing a precured tread strip
  • Method and system for producing a precured tread strip

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] figure 1 The reference numeral 1 in the figure designates a system as a whole for the production of a precured tread band 2 for cold retreading of truck tires.

[0034] The system 1 comprises a mixing device 3 for producing a green rubber mixture which is fed to an extrusion device 4 in which it is extruded into a continuous green rubber tread band 5 . The cutting device 6 cuts the continuous raw rubber tread band 5 into a series of raw rubber tread bands 2 of a given length downstream of the extrusion device 4; vulcanization; and trimming device 8 downstream of vulcanization device 7 preferably removes vulcanized flash from each precured tread band 2 .

[0035] Downstream of the trimming device 8 , a grinding device 9 grinds the bottom surface 10 of each precured tread band 2 . More specifically, buffing includes buffing and / or grinding the bottom surface 10 of each precured tread band 2 to remove any rubber-to-metal non-stick surface media remaining after the vulcan...

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

A method and system (1) for producing a precured tread strip (2), whereby a rubber mixture is extruded into a continuous tread strip (5), from which the precured tread strip (2) is detached; the bottom surface (10) of the precured tread strip (2) is buffed, and the precured tread strip (2) then inserted inside a bag (12) made of material impermeable to air and which is then sealed; and a vacuum is formed inside the bag (12) just before the bag (12) containing the precured tread strip (2) is sealed.

Description

technical field [0001] The present invention relates to a method and system for producing a prepared tread strip. [0002] The invention may be advantageously used in the cold retreading of truck tires, the following description is by way of example only. Background technique [0003] Cold retreading of truck tires generally involves removing the worn tread from the carcass and applying new tread to the carcass by wrapping an intermediate strip of raw rubber around the carcass and molded, pre-cured tread band, the carcass is then placed in an autoclave for further vulcanization, thereby ensuring optimum adhesion of the tread to the carcass by the adhesive action of the intermediate band combine. [0004] An example of a precured tread band for application to a carcass is described in patent US5277727A1; and an example of a tire retreading station using the above method is described in patent US6368439B1. [0005] The precured tread band is produced by producing a green ru...

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): B29D30/06B29D30/56
CPCB29D30/56B29D2030/0038
Inventor 卢卡·莱利奥
Owner BRIDGESTONE CORP
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com