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Airless tire and method of manufacturing same

A technology of airless tires and manufacturing methods, applied to non-pneumatic tires, tire parts, tires, etc., can solve the problems of uniformity influence, ring shaft and hub shaft inconsistency, etc., and achieve the effect of improving uniformity and improving uniformity

Active Publication Date: 2017-02-22
SUMITOMO RUBBER IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the inclination of the ring axis relative to the horizontal plane of the mold deviates from the vertical, and the ring axis and the hub axis become inconsistent, which may affect the uniformity

Method used

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  • Airless tire and method of manufacturing same
  • Airless tire and method of manufacturing same
  • Airless tire and method of manufacturing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0057] Prototypes based on the specifications in Table 1 are formed as figure 1 The basic structure of the airless tire, and the stability of the horizontal posture of the tread ring alone, the RRO and the vibration generated by the actual vehicle were evaluated.

[0058]

[0059] A single tread ring is placed horizontally, and the stability of this posture is evaluated by the tester's feeling.

[0060]

[0061] The RROs of the tire equator and both shoulders of each airless tire were measured, and their average value was calculated. The result is that the lower the number the better.

[0062]

[0063] A small EV vehicle equipped with each airless tire was driven on a test course, and the vibration during driving was evaluated by the tester's feeling. As a result, the grade that does not feel vibration is represented as A, the grade that feels vibration but is allowed in the market is represented as B, and the grade that feels large vibration but is not allowed in the ...

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PUM

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Abstract

An airless tire is provided with: a cylindrical tread ring (2) with a ground-contacting surface (21); a hub disposed on the inside in a radius direction of the tread ring (2) and secured to an axle; and spokes linking the tread ring (2) and the hub. The tread ring (2) includes a side wall (22) continuous from the ground-contacting surface (21) and forming a ring side surface. The side wall (22) includes a support portion (23) that supports the tread ring (2) in a manner that the support portion (23) abuts on a horizontal plane (H) when the tread ring (2) is singly placed on the horizontal plane (H) laterally, and a ring axis (A2) is oriented in a direction perpendicular to the horizontal plane (H).

Description

technical field [0001] The present invention relates to an airless tire capable of improving uniformity and a method for manufacturing the same. Background technique [0002] As an airless tire, a structure in which a cylindrical tread ring having a contact surface and a wheel hub fixed to an axle has been proposed by utilizing a plurality of spoke plate portions arranged radially (for example, Refer to Patent Document 1.). [0003] Even in airless tires, similar to pneumatic tires, in order to suppress vibration of the tire during rolling, it is desired to improve the uniformity of the tire. On the other hand, in order to improve the uniformity of the airless tire, it is important to align the axis of the tread ring with the axis of the hub with high precision. [0004] Patent Document 1: Japanese Patent Laid-Open No. 2008-260514 [0005] Airless tires are manufactured, for example, by placing a tread ring and a hub in a cavity space provided in a mold, and then injectin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60B9/04B29C35/02B29C39/10B29D30/00B60C7/00B29L30/00
CPCB29K2621/00B29L2030/006B29K2705/00B29K2105/20B29K2105/24B29D30/02B60C7/107B60C7/143B60C7/146B60C13/002B60C13/001B60C7/14B29C45/1459B29C35/02B29C39/10
Inventor 岩村和光杉谷信
Owner SUMITOMO RUBBER IND LTD