Pattern tread rubber of procured remolded tire

Abstract

The invention relates to pattern tread rubber of a procured remolded tire. The pattern tread rubber comprises a tread rubber body, and a plurality of pattern grooves are formed in the tread rubber body. The pattern tread rubber is characterized in that a longitudinal broken line seam formed by sequentially connecting a plurality of line segments in an end-to-end mode is formed in the center line position of the tread rubber body in the length direction of the tread rubber body, transverse seams connected with vertexes of the longitudinal broken line seam are formed in the width direction of the tread rubber body, and the pattern grooves are formed between the transverse seams one by one. Compared with the prior art, the pattern tread rubber has the advantages that internal stress of transverse bending of the tread rubber is reduced by arranging the broken-line-shaped longitudinal broken line seam, and longitudinal cracks are not caused easily; internal stress of longitudinal bending of the tread rubber is reduced by arranging the transverse seams; cooling of tire shoulders is facilitated by arranging chamfered edge seams, and void and swell of the tire shoulders are reduced. The pattern tread rubber attached to a tire body of the procured remolded tire eliminates prestress, and is good in cooling effect and not prone to falling off, and the tire is long in service life.

Description

technical field [0001] The invention belongs to tires, in particular to a pattern tread rubber for prevulcanized reconstituted tires. Background technique [0002] Prevulcanized tread rubber is a rubber component used for tire retreading and is a special cold retreading process. The process of tire retreading is divided into hot retreading and cold retreading. The hot retreading process is to mold the tread rubber and the carcass and then vulcanize it under high temperature and pressure in the mold; the cold retreading is to combine the pre-cured tread rubber and the carcass. Molding vulcanizes at lower temperature and pressure. The quality of the cold turning process is better than that of the hot turning process, and it has become the main process method at present. The carcass used for low-temperature pre-vulcanized remanufactured tires (commonly known as cold retreaded tires) refers to the old tire carcass formed after the use of new tires. The tread rubber is bonded t...

AI Technical Summary

Problems solved by technology

Its disadvantage is that it is difficult to dissipate heat at the shoulder of the tire, and it is easy to produce hollow bulges, and this pattern cannot be used for pre-vulcanized remanufactured tires, because the tread rubber is pre-vulcanized during the production process of pre-vulcanized remanufactured tires. When the rubber is bonded to the carcass of the old tire, the tread rubber will bend and deform in the length direction (longitudinal direction) and width direction (transverse direction), which will generate a large internal stress, which can cause it to fall off or even damage the carcass, making the tire prematurely scrapped

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