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Pre-strained non-pneumatic tire and method of making same

A non-pneumatic tire, pre-strain technology, applied in the direction of non-pneumatic tires, tire parts, tires, etc., can solve the problems of increasing tire weight and adverse effects on tire performance

Active Publication Date: 2021-01-19
BRIDGESTONE AMERICAS TIRE OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The strain on the connecting elements under compression can be reduced by using a stiffer material for the spokes or webbing, but this can have an adverse effect on tire performance
Alternatively, the strain can be reduced by using thicker spokes or webbing, but this increases the weight of the tire

Method used

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  • Pre-strained non-pneumatic tire and method of making same
  • Pre-strained non-pneumatic tire and method of making same
  • Pre-strained non-pneumatic tire and method of making same

Examples

Experimental program
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Embodiment Construction

[0024] Figure 1 to Figure 3 One embodiment of a non-pneumatic tire 10 is shown. In the illustrated embodiment, the non-pneumatic tire 10 includes a generally annular inner ring 20 that engages a wheel 60 on which the tire 10 is mounted. The wheel 60 has an axis of rotation 12 about which the tire 10 rotates. The generally annular inner race 20 has an inner surface 23 and an outer surface 24 and may be made of a crosslinked or uncrosslinked polymer. In this disclosure, the term "polymer" refers to a crosslinked or uncrosslinked polymer.

[0025] For small applied loads, the generally annular inner race 20 may be adhesively engaged with the wheel 60 or may undergo some chemical structural changes to bond it to the wheel 60 . For greater applied loads, the generally annular inner race 20 may be joined to the wheel 60 via some form of mechanical connection, such as a mating fit, but a mechanical connection may also be used to support smaller loads. The mechanical engagement m...

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PUM

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Abstract

A pre-strained non-pneumatic tire has an inner ring, an outer ring, and a plurality of polymeric connecting elements extending from the inner ring to the outer ring. The pre-strained non-pneumatic tire made by a process that includes forming an initial non-pneumatic tire and straining at least a portion of one of the plurality of polymeric connecting elements.

Description

technical field [0001] The present disclosure relates to a non-pneumatic tire. More specifically, the present disclosure relates to non-pneumatic tires having prestrained components. Background technique [0002] Various tire constructions have been developed that allow the tire to be run uninflated or under-inflated. Non-pneumatic tires do not require inflation, while "flat tires" can continue to be driven at relatively high speeds for extended periods of time after being punctured and losing all or part of their pressurized air. Non-pneumatic tires may include a plurality of spokes, webbing, or other connecting elements that connect the inner ring to the outer ring. [0003] When a non-pneumatic tire is mounted on a vehicle, tension is exerted on the connecting elements above the axis of the tire, while compressive forces are applied on the connecting elements below the axis. Compressive forces can cause the connecting elements to buckle. The spokes or webbing can expe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C17/06B60C7/10
CPCB60C7/143B29D30/02B60C7/107
Inventor 本杰明·D·克诺斯普
Owner BRIDGESTONE AMERICAS TIRE OPERATIONS LLC