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Airless Tire

A technology for airless tires and tires, applied to non-pneumatic tires, tire parts, wheels, etc., can solve problems such as uneven wear and uneven rigidity of tread rings, achieve roughly uniform rigidity, and improve uneven wear resistance , The effect of improving durability

Active Publication Date: 2017-08-11
SUMITOMO RUBBER IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the rigidity of the tread ring in Patent Document 1 is not uniform in the tire width direction, which is a factor causing uneven wear.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0064] Prototype formed according to the specifications in Table 1 Figure 1~4 Airless tires of the basic structure (equivalent to tires with a tire size of 125 / 80R13), and tested for water drainage, durability, and uneven wear resistance. The spokes are molded integrally with the tread ring and the hub by polyurethane resin (thermosetting resin) casting. The test method is described below.

[0065]

[0066] Each test tire was mounted on a small passenger car, and a test driver drove along a test road on a paved road in a wet state. The running characteristics related to water drainage at this time were evaluated by the senses of the test driver. The results are an index based on Comparative Example 1 as 100, and a larger value indicates better drainage.

[0067]

[0068] The durability test of each trial tire was carried out under the conditions described below using a roller tester under hot and humid conditions, and each trial tire after the test was cut to check whe...

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PUM

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Abstract

[Problem to be Solved] To provide an airless tire that allows both good drainage performance and good durability to be achieved and allows uneven wear resistance to be improved. [Solution] An airless tire 1 is provided that includes a cylindrical tread ring 2 that has a ground contact surface 5. Multiple through holes 8 and a reinforcing body 11 are provided in the tread ring 2, the multiple through holes 8 penetrating the tread ring 2 in a thickness direction of the tread ring 2. The multiple through holes 8 are arranged at intervals along a tire circumferential direction. The reinforcing body 11 includes a first reinforcing body 12 that extends in the tire circumferential direction in regions between adjacent through holes 8. Both ends (12e) of the first reinforcing body 12 in the tire circumferential direction terminate without being exposed from inner peripheral surfaces of the through holes 8.

Description

technical field [0001] The present invention relates to an airless tire having both water drainage and durability and improved uneven wear resistance. Background technique [0002] In recent years, various proposals for airless tires have been made. Airless tires are capable of supporting loads through their own structural components without using high-pressure air. Thus, airless tires have the advantage of not being punctured. [0003] For example, Patent Document 1 below describes an airless tire having a cylindrical tread ring. A plurality of through holes and reinforcements penetrating the thickness direction are provided on the tread ring. The through holes improve the drainage of the airless tire, and the reinforcement improves the durability of the airless tire. [0004] Patent Document 1: Japanese Patent Laid-Open No. 2008-044445 [0005] In the aforementioned Patent Document 1, in order to prevent the reinforcement from being corroded by water penetrating throu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C7/00B60C7/22B60C11/03
CPCB60C7/00B60C7/22B60C11/0323B60C2011/0339B60C7/101B60C2011/0346B60C7/18B60C11/032B60C11/00B60C7/06B60C7/24B60C2007/005B60B3/06B60B3/10
Inventor 岩村和光杉谷信
Owner SUMITOMO RUBBER IND LTD
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