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Air bag for vehicle tire sulfuration

A technology of automobile tires and airbags, applied in the field of airbags for vulcanization of automobile tires

Inactive Publication Date: 2009-05-13
HANKOOK TIRE WORLDWIDE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Therefore, the present invention was conceived to solve the problem that the airbag must be improved in order to prevent the rubber from moving due to the airbag during vulcanization of the tire and causing tire defects.

Method used

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  • Air bag for vehicle tire sulfuration
  • Air bag for vehicle tire sulfuration
  • Air bag for vehicle tire sulfuration

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] Hereinafter, the present invention will be described in more detail with reference to the drawings.

[0013] The present invention is an airbag for automobile tire vulcanization, which is located inside a raw tire 100 and integrates flanges 1, 2 and an inflatable part 3 on both sides that expand due to internal pressure during vulcanization. A reinforcing belt layer 4 is provided on the inner side of the center of the swelling part 3, and the above-mentioned reinforcing belt layer 4, such as figure 2 As shown, it is composed of the following composite materials, that is: the bonding part 41 on both sides, which is attached to the airbag 101 through an adhesive; Between: Nylon cords 43 are inserted and disposed inside the initial distillation rubber 42 at predetermined intervals.

[0014] When the above-mentioned reinforcing belt layer 4 is attached to the central portion of the airbag 101, the above-mentioned reinforcing belt layer 4 is provided so as to hang down fro...

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PUM

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Abstract

The invention relate to a bladder for vehicle tyre vulcanization. The external surface of a raw tyre loaded in a curing mould forms a mould shape through the internal bladder expansion, when the raw tyre is vulcanized, the rigidity central side of the bladder contacting with the bottom of the tyre surface is weak, thereby through the expansion of the bladder, the phenomenon that the rubber at the tyre shoulder moves to the central side of the tyre surface is generated. Thus in the invention, through arranging an enhanced belt layer in the center part of the bladder to enhance the central part, the central part of the bladder is loosen, so the housing phenomenon generated to the centralized rubber at the central part of the tyre surface as in the conventional bladder is prevented, thereby preventing the phenomenon of the bad vulcanization of the tyre.

Description

technical field [0001] The invention relates to an air bag for vulcanizing automobile tires. Background technique [0002] When manufacturing tires, the green tire (Green tire) completed in the molding process is placed in a tire vulcanizing mold, and heat and pressure are applied from the inside and outside to vulcanize. An air bag (Bladder) is inserted inside the tire. The bladder plays a role of keeping the tire in a constant shape during vulcanization of the green tire. [0003] Therefore, the green tire mounted on the vulcanization mold is inflated by the inner bladder, and the outer surface of the green tire is shaped into the shape of the inner surface of the mold. The airbag is installed inside the raw tire and expands with high-temperature and high-pressure air, thereby heating the green tire and pressing the mold. Since the rigidity of the center side of the airbag is weak, the rubber on the shoulder side of the tire is damaged by the expansion of the airbag. , ...

Claims

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Application Information

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IPC IPC(8): B29C35/02B29L30/00
CPCB29D30/0654B29D2030/0655
Inventor 李元赫
Owner HANKOOK TIRE WORLDWIDE
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