Non- pneumatic tire with annular spoke reinforcement

A technology of non-pneumatic tires and spokes, applied in non-pneumatic tires, tire parts, vehicle parts, etc., can solve the problems of deterioration of artificial rubber materials, lack of cushioning and handling characteristics, etc., and achieve the effect of rigidity enhancement

Inactive Publication Date: 2013-12-04
CATERPILLAR INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, polyurethane solid tires are not entirely satisfactory in such applications because they do not possess the desired cushioning and handling characteristics
In addition, such solid tires suffer from internal heat buildup and subsequent degradation of the elastomeric material during prolonged high-speed operation or in rough terrain that deforms the tire

Method used

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  • Non- pneumatic tire with annular spoke reinforcement
  • Non- pneumatic tire with annular spoke reinforcement
  • Non- pneumatic tire with annular spoke reinforcement

Examples

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Embodiment Construction

[0017] Referring now to Figure 1 and figure 2 , wherein the same numerals refer to the same parts in all these figures, the non-pneumatic tire 1 of the present invention generally includes an inner ring member 5 having an inner surface 6 and an outer ring member 8 having a tread groove area 10 . The tread groove area 10 comprises an outer surface 11 bearing treads 12 parallel to the axis of rotation A of the tire 1 in this example. These treads 12 extend slightly over half the width of the tire 1 and are staggered with each other. Of course, any of a variety of tread patterns may be used in conjunction with the present invention. The inner surface 6 and the outer surface 11 define the inner and outer diameter of the tire 1, respectively.

[0018] Refer to Figure 1 and image 3 , the central web 13 integrally connects the inner ring member 5 and the outer ring member 8 . The central web 13 comprises a disc-shaped central portion 14 and side portions 15a, 15b. The side por...

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PUM

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Abstract

A non-pneumatic tire is provided with an annular reinforcing web that reduces the bending of compression spokes formed in the tire and reduces stresses and strains in the tire. The non-pneumatic tire includes an inner hoop member having an inner surface that defines the inner diameter of the tire, and an outer hoop member having a tread groove region that defines the outer diameter of the tire. A disc-shaped central web portion connects the inner and outer hoop members. A plurality of elongated, radially aligned cavities on either side of the central web defines integrally-formed compression spokes which connect the inner and outer hoop members. The annular reinforcing web is located on and affixed to either side of the central web portion and interconnects a mid portion of each spoke to a mid portion of the spokes on either side of it. Preferably, the annular reinforcing web is reinforced with fiber webbings on its outer side for added strength. The annular reinforcing web allows the tire to be made with less polyurethane material with no reduction in load carrying capability.

Description

technical field [0001] The present invention relates generally to non-pneumatic tires having compressed spokes, and in particular to non-pneumatic tires having annular spoke reinforcing webs that reduce bending of the spokes and reduce stress and tension in the tire. Background technique [0002] Off-highway (OTR) vehicles, also known as off-highway vehicles, are commonly used in rough terrain for mining, excavation, construction, military applications, and other heavy industrial applications. OTR vehicles include tractors, trucks, loaders, bulldozers, grinders, excavators, etc., and can have an operating weight of up to 380 tons to 460 tons. Typically, such OTR vehicles have several inflatable tires made of rubber. These applications require each tire to have properties such as puncture resistance, the ability to carry relatively heavy loads, and good wear and tear resistance. Conventional pneumatic tires generally have a short operating life of about six months. Further...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C7/18B60C7/22
CPCB60C7/18B60C7/22B60C2007/107B60C7/107
Inventor R·佩林卡斯I·拉斯科维茨A·托帕尔
Owner CATERPILLAR INC
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