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Airless flexible tire and wheel assembly

A tire and flexible technology, applied in the field of transportation, can solve problems such as fatigue and wear, and achieve the effect of preventing erosion, balancing the rolling radius and improving soil loss.

Inactive Publication Date: 2019-06-04
LINDSAY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This results in excessive field wear and fatigue on the drive motor and other moving parts of the irrigation bridge

Method used

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  • Airless flexible tire and wheel assembly
  • Airless flexible tire and wheel assembly
  • Airless flexible tire and wheel assembly

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Embodiment Construction

[0020] The following detailed description of the invention refers to the accompanying drawings that illustrate specific embodiments in which the invention may be practiced. These embodiments are intended to describe aspects of the invention in sufficient detail to enable those skilled in the art to practice the invention. Other embodiments may be utilized and changes may be made without departing from the scope of the present invention. Therefore, the following detailed description should not be read in a limiting sense. The scope of the invention is to be defined only by the appended claims, along with the full scope of equivalents to which such claims are entitled.

[0021] In this specification, reference to "one embodiment," "an embodiment" or "embodiments" means that the referenced feature or features are included in at least one embodiment of the technology. Separate references in this specification to "one embodiment," "an embodiment," or "a plurality of embodiments" ...

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Abstract

The invention relates to an airless flexible tire, and also relates to a wheel assembly comprising the air flexible tire. The airless flexible tire comprises a belt, drive lugs, and traction lugs. Thedrive lugs extend inwardly from the belt and form annularly spaced, rigid, high torque points. The traction lugs extend outwardly from the belt and are annularly offset from the drive lugs so as to form flexible sections that deflect radially inwardly when the tire engages the ground. Each traction lug has an effective height as a function of its actual height, the angle that the traction lug extends relative to a radial axis, the angle of the traction lug's distal surface, and the amount the tire deflects radially inwardly near the traction lug so as to at least partially equalize a rollingradius of the wheel to reduce torque generated near the high torque points.

Description

technical field [0001] The present application relates to the field of transportation technology, and more particularly to an airless flexible tire and wheel assembly having a torque reducing tread pattern. Background technique [0002] Mobile agricultural irrigation systems such as center pivot systems and linear systems are commonly used to irrigate large fields and typically include conduits extending across several irrigation bridges. Each irrigation span supports a section of conduit elevated on a support tower that includes a wheel assembly configured to move the conduit across a field along a ground passage path. The wheel assemblies may include conventional pneumatic tires or "airless" tires. In the airless tire embodiment, the wheel assembly typically includes a rigid wheel and an airless flexible tire mounted on the rigid wheel. Rigid wheels have outwardly projecting spokes spaced apart to form polygonal or other non-circular shapes. The airless flexible tire ha...

Claims

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Application Information

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IPC IPC(8): B60C7/24B60B21/10
CPCB60C2200/08B60C7/28B60C7/107B60C7/10B60C27/0223B60C2011/0346B60C11/04
Inventor M·弗瑞登博格
Owner LINDSAY CORP