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Tire/wheel assembly body and supporting body for traveling with tire flat

A technology of running out of air and supporting body, which is applied in the direction of pneumatic tires, tire parts, vehicle parts, etc., can solve problems such as no effective countermeasures have been proposed.

Inactive Publication Date: 2008-02-13
THE YOKOHAMA RUBBER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, no effective countermeasures have been proposed for the above-mentioned tire / wheel assembly equipped with a run-flat support body, so the proposal of an improvement technology for this problem is expected.

Method used

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  • Tire/wheel assembly body and supporting body for traveling with tire flat
  • Tire/wheel assembly body and supporting body for traveling with tire flat
  • Tire/wheel assembly body and supporting body for traveling with tire flat

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] Set the tire size as 205 / 55R16, and set the rim size as 16×6 1 / 2JJ to be the same, and respectively make the ones with concavities and convexities provided on the legs of the annular shell, as shown in Figure 2 (A), The tire / wheel assembly 1 of the present invention (assembly 1 of the present invention) having the structure shown in (B) has concavities and convexities provided on the connecting portion of the supporting portion of the annular casing, as shown in FIG. 3(A), The tire / wheel assembly 2 of the present invention having the structure shown in (B) (the assembly 2 of the present invention), and in the tire / wheel assembly of the present invention, no unevenness is provided on the legs of the annular casing. Conventional tire / wheel assembly 1 (conventional assembly 1).

[0061] The cross-sectional area of ​​the hollow portion of the tire / wheel assembly 1, 2 of the present invention has a maximum cross-sectional area greater than the minimum cross-sectional area by...

Embodiment 2

[0069] The tire size and rim size were set to be the same as in Example 1, and the maximum and minimum differences in the total opening area of ​​the through holes between the regions that divided the annular casing 4 into equal parts were produced as shown in Table 2. Tire / wheel assemblies 3 to 5 of the present invention (assemblies of the present invention 3 to 5) and comparative tire / wheel assemblies 1 and 2 (comparative assemblies 1 and 2) of the present invention having the configuration of FIG. 4 , and no through holes are provided. The conventional tire / wheel assembly 2 (conventional assembly 2).

[0070] The total area of ​​the openings of all the through holes of the tire / wheel assemblies 3 to 5 of the present invention and the comparative tire / wheel assemblies 1 and 2 is 0.5% of the area of ​​the outer surface of the annular casing. identical.

[0071] After setting the air pressure to 200kPa, these test tire / wheel assemblies were mounted on a passenger car with a d...

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PUM

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Abstract

The invention relates to a tire / wheel assembly body provided with a supporting body for traveling with flat tire in a hollow cavity of a pneumatic tire arranged on a wheel felloe of a wheel, wherein the supporting body for traveling with flat tire consists of an annular shell body and an elastic ring, wherein the outer circumferential side of the shell body is set to be a supporting surface and the inner circumferential side of shell body is formed into a leg part which is diverged into a two-legged shape; the leg part is supported on the wheel felloe by the elastic ring. The annular shell body is formed by making a sectional area of an annular hollow cavity part enclosed by the supporting body for traveling with flat tire and the pneumatic tire change along the circumferential direction of the tire.

Description

technical field [0001] The present invention relates to a tire / wheel assembly and a run-flat support, and more specifically, to a tire / wheel assembly for which noise performance is to be improved and a run-flat support used therefor. Background technique [0002] Due to market demands, technologies have been proposed many times that enable emergency travel of several hundreds of kilometers even when a pneumatic tire blows out while the vehicle is running. Among these proposals, for example, JP-A-10-297226 discloses that a support body is attached to the rim inside the hollow portion of a rim-assembled pneumatic tire, and a blown tire is supported by the support body. Technology that enables run-flat driving. [0003] The above-mentioned run-flat support body has an annular shell with the outer peripheral side as a support surface and the inner peripheral side is bifurcated into a two-legged structure. The elastic ring is supported on the rim. Since this run-flat support b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60C17/06B60C5/00
Inventor 内藤充丹野笃
Owner THE YOKOHAMA RUBBER CO LTD
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