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Assembly of tire and rim

A combination and tire technology, applied in tire measurement, tire parts, non-pneumatic tires, etc., can solve problems such as difficulty in reducing the weight of the inner support body, loss of durability, and increased tire damage due to heating time

Inactive Publication Date: 2003-11-26
BRIDGESTONE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, it is difficult to reduce the weight of the inner support body from the standpoint of vibration resistance and therefore sometimes the total weight of the tire, inner support body and rim increases by 30-50% or more compared with the weight in a conventional pneumatic tire, so that There is a disadvantage of deterioration of ride comfort in normal operation before the puncture, but there is also a disadvantage of considerable loss of durability of vehicle bottom parts such as bushings, etc.
[0008] In addition, there is a problem that the operation of assembling the tire to the rim after arranging the inner support body inside the tire is complicated and takes a long time
Also, the extension of the heating time further increases the damage of the tire through the above-mentioned thermal aging, so that the deterioration of the durability cannot be avoided and therefore the above technique cannot be called a good plan

Method used

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  • Assembly of tire and rim
  • Assembly of tire and rim
  • Assembly of tire and rim

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0188] The preparation of the compressed elastic object is not particularly limited and may include, following the first to fourth methods. The first to third methods relate to a production method of a compressed elastic object including a composite material in a hollow body, and the fourth method relates to a production method of a compressed elastic object including a gas in a hollow body.

[0189] The first method is a method in which a bag-shaped hollow body is provided and a composite material is placed therein and the opening portion of the bag-shaped hollow body is closed thereafter. The method of closing the opening depends on the material used for the hollow body, but may include, for example, an internal heating system such as a high-frequency heating process, an ultrasonic sealing process, etc., and an external heating system such as a heat sealing process, a pulsation sealing process, and the like.

[0190] In the second method, a bag-shaped hollow body is provided and...

Embodiment 1-12

[0240] The following examples are provided to illustrate the invention and are not meant to be limiting. Examples 1-12, Comparative Examples 1-5

[0241] By applying particles with various specifications shown in Tables 1 and 2 to figure 1 The tire of the structure shown is a combination of passenger car tires with a tire size of 175 / 70R13 and a rim of 5J×13, and a combination of truck and utility vehicle safety tires with a tire size of 11R22.5 and a rim of 750×22.5. Body, as shown in the same table. Here, the tire 1 is a general structure according to the type and size of the tire of interest. In addition, the types of resin compositions constituting the continuous phase of particles in Tables 1 and 2 are shown in Table 3. The resin particles in which the gas component was coated as shown in Table 3 were heated and expanded to form particles, and the particles thus obtained were added to the inside of the tire at various average bulk specific gravities shown in Tables 1 and 2. ...

Embodiment 49

[0359] Example 49 [Filling under atmospheric pressure]

[0360] According to not Figure 5 In the passage indicated by arrow 18, a storage tank that stores cell-containing particles with an average particle size of 120 μm under atmospheric pressure, the tire-rim assembly and the diaphragm pump are connected through a pressure hose, and the discharge pressure of the pump is under various filling amounts. The inside of the tire-rim assembly is filled with particles containing cells. In addition, the tire-rim assembly is a combination of a passenger car tire with a tire size of 175 / 70R14 and a rim with a size of 5J-14, and four inlet ports for porous particles and four for use in the bottom of the rim are arranged Outlet port for the air inside and outside the tire. Also, a glass filter is arranged in the outlet port for outside air so as not to flow out the cell-containing particles from the tire. [High pressure filling]

[0361] According to include Figure 5 In the passage indicat...

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Abstract

There is provided a tire-rim assembly capable of stably running over a distance required even in the dropping of the tire internal pressure after the injuring of the tire without sacrificing rolling resistance and ride comfort in the usual running before the injuring of the tire, wherein a great number of substantially sphere-shaped particles each consisting of a continuous phase of a resin and a closed cell(s) and having a mean bulk specific gravity of not more than 0.1 are disposed in an interior defined by assembling a hollow doughnut-shaped tire onto an approved rim, and a pressure at 25 DEG C in the interior of the tire is not less than 150 kPa as an absolute pressure.

Description

Technical field [0001] The present invention relates to a tire-rim assembly, which can control the rapid decrease in the internal pressure of the tire after being subjected to external damage and extend the usable running distance after the damage without sacrificing the durability and the normal tires that have not suffered external damage. Driving comfort during operation. Background technique [0002] In pneumatic tires, such as passenger car tires, tension is generated by sealing air inside the tire with an internal pressure (absolute pressure) of about 250-350kPa in the skeleton part of the tire such as carcass, belts, etc., and such tension can be passed Deformation and recovery of the tire against tire input. That is, a constant tension is generated in the tire frame by maintaining the internal pressure of the tire within a given range, so the load bearing function is important for the tire and also enhances the rigidity to provide the required performance in vehicle opera...

Claims

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Application Information

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IPC IPC(8): B60C5/14B60C7/12B60C19/00B60C23/00G08B21/00
CPCY02T10/86
Inventor 寺谷裕之大谷光司石黑俊行
Owner BRIDGESTONE CORP
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