Compliant wheel

A flexible wheel and flexible belt technology, applied in the field of flexible wheels, can solve the problems of small ground contact area, inability to provide flexibility, and no widespread use of non-pneumatic tires as alternatives to pneumatic tires.

Active Publication Date: 2006-08-23
MICHELIN & CO CIE GEN DES ESTAB MICHELIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the hub is thus spring-suspended, the non-retractable ring has only a small ground contact area, provides little compliance, and provides poor traction and steering control
[0006] Thus, the known non-pneumatic tires have not found widespread use as replacements for pneumatic tires except in limited circumstances.

Method used

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Examples

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Embodiment Construction

[0034] For the purpose of this specification, the following terms are defined as follows:

[0035] "Equatorial plane" refers to the plane perpendicular to the axis of rotation of the wheel and bisecting the wheel structure.

[0036] "Meridian" means the plane passing through and including the axis of rotation of the wheel.

[0037] "Modulus" of an elastic material refers to the tensile modulus of elasticity at 10% elongation as measured by ASTM Standard Test Method D412.

[0038] "Hysteresis" refers to the dynamic loss tangent (tan δ) measured at operating strain, temperature and frequency. Those of ordinary skill in the art will appreciate that operating conditions are different for specific applications, for example, load and speed requirements are different for golf carts and sports cars, and strains, temperatures, and frequencies are specified for specific applications.

[0039] The reference numbers depicted in the figures follow a consistent pattern for each variable. ...

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Abstract

A compliant wheel includes a compliant band and a plurality of web spokes extending transversely across and inward from the reinforced compliant band for attachment to a hub. The compliant band bends to comply with a contact surface and to envelope obstacles. The web spokes transmit load forces between the compliant band and the hub through tension in the web spokes not connected to the ground contacting portion of the wheel. The outer surface of the compliant band may be formed to include a tread, or a separate tread band may be attached.

Description

[0001] This is a continuation-in-part of PCT / US01 / 26379 filed on August 24, 2001 and designating the United States. technical field [0002] This invention relates to non-pneumatic structurally supported tires and wheels. More specifically, the present invention relates to a compliant wheel that supports loads with its structural components and that has pneumatic tire-like properties for use as a replacement and improvement for pneumatic tires. Background technique [0003] Pneumatic tires are the most known solution for compliance, comfort, mass and rolling resistance; however, pneumatic tires have the disadvantages of complexity, maintenance requirements and susceptibility to damage. For example, devices that improve the performance of pneumatic tires can provide greater compliance, better stiffness control, lower maintenance requirements, and resistance to damage. [0004] Conventional solid, spring and soft-core tires, while not having the maintenance requirements and d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60B9/26B60B1/02B60C7/00B60C7/10
CPCB60B1/042B60B1/0223B60B9/26B60C7/18B60B2310/204B60B1/0276B60C7/00B60C7/10B60C7/146B60B1/02B60B9/00B60B9/02
Inventor T·B·赖恩S·M·克龙J-P·蓬皮耶里
Owner MICHELIN & CO CIE GEN DES ESTAB MICHELIN
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