Assembly of tire and rim

A polymer and composition technology, applied in the direction of rolling resistance optimization, road transportation emission reduction, etc., can solve problems such as difficult to reduce the weight of the inner support body, unavoidable deterioration of durability, increased heating time, tire damage, etc.

Inactive Publication Date: 2006-11-22
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

[0241] Examples 1-12, Comparative Examples 1-5

[0242] 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. Similarly, the types of inner liner rubber are shown in Table 4.

[0243] Here, the inner volume o...

Embodiment 13-23， comparative example 6-9

[0266] By applying particles with various specifications shown in Table 5 to figure 1 On the tire of the structure shown, a combination of a passenger car safety tire with a tire size of 205 / 60R15 and a rim with a size of 6J×15 was prepared, as shown in the same table. Similarly, a combination of truck and bus tires with a tire size of 11R22.6 and a rim with a size of 750×22.5 was prepared by applying particles having various specifications shown in Table 6. Here, the tire 1 is a general structure according to the type and size of the tire of interest. In addition, the resin compositions constituting the continuous phase of the particles in Tables 5 and 6 are shown in Table 3 above. The resin particles in which the gas components shown in Table 3 are coated are heated and expanded to form particles, and the particles thus obtained are added to the inside of the tire at the volume filling ratios shown in Tables 5 and 6. Similarly, the types of rubber used for the inner liner are s...

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Abstract

An assembly of a tire and a rim allowing a stable running over a required distance even if a tire internal pressure is lowered after the tire gets damaged without sacrificing a rolling resistance and a riding comfortableness in normal running before the tire gets a damage, wherein the hollow donut-shaped tire is installed on an applicable rim, a large number of generally spherical particles formed of resin of continuous phase and independent bubbles and having an average bulk specific gravity under the atmospheric pressure of 0.1 or less are disposed in the tire partitioned by the tire and the applicable rim, and a pressure inside the tire at the temperature of 25 DEG C is set to 150 kPa or higher in 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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Patent Type & Authority Applications(China)
IPC IPC(8): C08L29/04C08J9/16C08K5/25C08L27/16C08L33/02C08L33/20
CPCY02T10/86
Inventor 寺谷裕之大谷光司石黑俊行
Owner BRIDGESTONE CORP
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