Assembly of tire and rim

A technology of tires and particles, applied to tire parts, tires, 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: 2006-11-22
BRIDGESTONE CORP
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  • 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
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preparation example Construction

[0188] The preparation of the compressed elastic body is not particularly limited and may include following the first to fourth methods. The first to third methods relate to production methods of a compressed elastic body including a composite material in a hollow body, and the fourth method relates to a production method of a compressed elastic body 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 thereafter the opening portion of the bag-shaped hollow body is closed. The method of closing the opening part depends on the material used for the hollow body, etc., 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 pulse sealing process, etc.

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

Embodiment 1-12

[0241] Embodiment 1-12, comparative example 1-5

[0242] By applying particles with various specifications shown in Tables 1 and 2 to the figure 1 For tires with the structure shown, the combination of passenger car tires with tire size 175 / 70R13 and rims with size 5J×13 and the combination of safety tires for trucks and public vehicles with tire size 11R22.5 and rims with size 750×22.5 were prepared body, as shown in the same table. Here, the tire 1 is of general construction according to the type and size of the tire of interest. In addition, the kinds of resin compositions constituting the particle continuous phase 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 at various average bulk specific gravity shown in Tables 1 and 2, the particles thus obtained were incorporated inside the tire. Similarly, the types of inner liner rubber are shown in Table 4.

...

Embodiment 13-23， comparative example 6-9

[0266] By applying particles with various specifications shown in Table 5 to figure 1 On the tires 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. Also, combinations of truck and bus tires with a tire size of 11R22.6 and wheel rims with a size of 750×22.5 were prepared by applying particles having various specifications shown in Table 6. Here, the tire 1 is of general construction 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 were coated were heated and expanded to form particles, and at the volume filling ratios shown in Tables 5 and 6, the particles thus obtained were incorporated inside the tire. Similarly, the types of rubber used for the inner ...

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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 combination capable of controlling a rapid drop in tire internal pressure and prolonging the usable running distance after damage without sacrificing durability and the usual Driving comfort during operation. Background technique [0002] In pneumatic tires such as passenger car tires, tension is generated in the skeleton portion of the tire such as carcass, belt, etc. by sealing air inside the tire at an internal pressure (absolute pressure) of about 250-350 kPa, and such tension can be Perform tire deformation and recovery against tire input. That is, a constant tension is generated in the tire frame by maintaining the tire internal pressure within a given range, so the load bearing function is important for the tire and also enhances rigidity to provide the required in vehicle operation such as driving, braking and steering performance basic performance. [0003] Now, when a tire kept at a given interna...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29D30/04B29C44/02B60C7/12
CPCY02T10/86
Inventor 寺谷裕之大谷光司石黑俊行
Owner BRIDGESTONE CORP
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