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Method for producing pneumatic tire

A technology for a pneumatic tire and a manufacturing method, which is applied to pneumatic tires, tire parts, and the absence of a separate inflatable pad, etc., can solve the problems of damage to the inner liner, heavy labor, and difficulty in removing the mold release agent, so as to inhibit peeling. , The effect of preventing the decrease of adhesion

Active Publication Date: 2016-07-06
THE YOKOHAMA RUBBER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the inner surface of the tire is buffed, the inner liner disposed on the inner surface of the tire may be damaged, so this method is not necessarily ideal.
In addition, although there is a method of wiping the release agent attached to the inner surface of the tire with a cloth or the like before bonding the sound-absorbing material, the work of wiping the release agent from the inner surface of the tire requires a lot of labor and is also very difficult. Difficult to remove the release agent completely

Method used

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  • Method for producing pneumatic tire
  • Method for producing pneumatic tire
  • Method for producing pneumatic tire

Examples

Experimental program
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Effect test

Embodiment 1

[0062] In Examples 1, 6, and 7, a green tire provided with an inner liner member was molded, and a film was attached to the region corresponding to the tread portion of the inner surface of the green tire by the adhesive force of the inner liner member. A release agent is applied to the inner surface of a raw tire having the film, the green tire coated with the release agent is vulcanized, and the film is removed from the inner surface of the pneumatic tire obtained by the vulcanization process, and after peeling off the film On the exposed area, a strip-shaped sound-absorbing material is adhered along the tire circumferential direction by means of an adhesive layer. In Example 1, the polymer constituting the film was nylon 6 monomer (N6), and its thickness was 50 μm. In Example 6, the polymer constituting the film was polyethylene terephthalate monomer (PET), and its thickness was 50 μm. In Example 7, the polymer constituting the film was nylon 66 monomer (N66), and its thic...

Embodiment 5

[0064] In Example 5, a thin film is attached to a region corresponding to the tread portion of a sheet-shaped inner liner member by the adhesive force of the inner liner member, and the film is placed on the inner surface of the tire and laminated to form an inner liner. member, and then mold a green tire including the inner liner member, apply a release agent on the inner surface of the green tire with the film, vulcanize the green tire coated with the release agent, and then proceed through the vulcanization process The film was removed from the inner surface of the obtained pneumatic tire, and a strip-shaped sound-absorbing material was bonded along the tire circumferential direction via an adhesive layer on the exposed area after peeling off the film. In Example 5, the polymer constituting the film was nylon 6 monomer (N6), and its thickness was 50 μm.

[0065] Here, in Examples 1 to 7, the cutting angle of the film at both end portions in the tire circumferential directio...

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Abstract

Provided is a method for producing a pneumatic tire which makes it possible to easily remove a parting agent from a region of the tire inner surface to which a sound-absorbing material is adhered, and as a result, suppresses the detachment of the sound-absorbing material. This method for producing a pneumatic tire involves: forming a green tire provided with an inner liner member; attaching a film to a region corresponding to a tread section on the inner surface of the green tire by using the adhesive force of the inner liner member; applying a coat of a parting agent to the inner surface of the green tire provided with the film; vulcanizing the green tire coated with the parting agent; removing the film from the inner surface of the pneumatic tire obtained through vulcanization; and adhering a belt-shaped sound-absorbing material via an adhesive layer in the tire-circumferential direction to an exposed region where the film is peeled away.

Description

technical field [0001] The present invention relates to a method of manufacturing a pneumatic tire to which a strip-shaped sound-absorbing material is adhered on an area corresponding to the tread portion of the inner surface of the tire, and more specifically, to a A method of manufacturing a pneumatic tire that suppresses peeling of the sound-absorbing material by removing molding agent from the region where the sound-absorbing material is bonded on the inner surface of the tire. Background technique [0002] One of the causes of noise in pneumatic tires is the cavity resonance sound caused by the vibration of the air filled inside the tire. This cavity resonance sound is generated when the tire is rotated, the tread portion vibrates under the influence of unevenness of the road surface, and the vibration of the tread portion vibrates the air inside the tire. [0003] As a method of reducing noise caused by such a cavity resonance phenomenon, it has been proposed to provi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29D30/08B60C5/00
CPCB29D30/0061B29D30/0681B29D30/3007B60C2005/145B60C2005/147B60C19/002B29D30/0662B29D2030/0682B60C5/002B29C65/48B29K2105/246B29K2667/003B29K2677/00B29L2031/3055B60C5/14
Inventor 丹野笃松田淳干场崇史
Owner THE YOKOHAMA RUBBER CO LTD
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