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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AI-Extracted Technical Summary

Problems solved by technology

[0006] Therefore, the present invention was conceived to solve the problem that the airbag must be improved in or...

Method used

In the airbag of the present invention as described above, the central part of the airbag is reinforced by reinforcing the belt layer, thereby loosening the central part of the airbag, thereby prev...

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.

Application Domain

Tyres

Technology Topic

Airbag deploymentPulp and paper industry +1

Image

Examples

Experimental program(1)

Example Embodiment

[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 green tire 100 and integrates flanges 1, 2 and an inflated portion 3 on both sides that are expanded by internal pressure during vulcanization. A reinforcing belt layer 4 is provided on the inner side of the center of the expansion part 3, and the above-mentioned reinforcing belt layer 4 is such as figure 2 As shown, it is composed of the following composite materials, namely: the adhesive parts 41 on both sides, which are attached to the airbag 101 by an adhesive, and the topping rubber 42, which connects the adhesive parts 41 on both sides. Between; Nylon cord 43, which is inserted and arranged at a predetermined interval inside the preliminary rubber 42.

[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 set to sag from the center of the inflation portion 3. The initial sag amount V when the reinforcing belt layer 4 is set is The above-mentioned reinforcing belt 4 is such as image 3 As shown, when the maximum expansion is 100%, there is a sag that can only absorb the length after expansion.

[0015] In addition, the above-mentioned reinforcing belt layer 4 is set to be within a range from a maximum of 110% to a minimum of 50% of the width of the tread 102 of the tire formed by the airbag 101.

[0016] The airbag for automobile tire vulcanization of the present invention having such a structure, such as image 3 As shown, when the tire is vulcanized, the airbag 101 expands in the direction of arrow A due to the internal pressure, the expansion part 3 contacting the bead 103 and the tread 102 sequentially expands, and finally the expansion part 3 contacting the shoulder 104 side At the time of expansion, the reinforcing belt 4 prevents the deformation of the center side of the tread 102 so that the flow of rubber is used in the direction of arrow C. By canceling the flow of rubber flowing in the direction of arrow B as in the past, it is vulcanized It prevents the flow of rubber concentrated on the center side of the tire tread, thereby minimizing tire defects.

[0017] As described above, the airbag of the present invention reinforces the central portion by reinforcing the belt layer, thereby loosening the central portion of the airbag, thereby preventing the rubber concentrated in the central portion of the tread from being contained in the conventional airbag. Therefore, it has the effect of being able to prevent poor tire vulcanization.

PUM

Description & Claims & Application Information

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