Abstract:
A non-pneumatic tire for supporting a load by working in tension comprising a generally annular inner surface, a generally annular outer ring, and an interconnected web having a plurality of web elements and comprising a plurality of generally polygonal openings. Web elements are sized, oriented and comprised of a material that facilitates buckling when subjected to a compressive load. By buckling, those elements in a deformed portion of the tire between a hub and a footprint region where the tire contacts a surface may assume a significantly reduced portion of the load, if any. This causes web elements in other portions of the interconnected web to operate in tension to support the load. Since the tire is non-pneumatic, it may be easier to maintain and may have a longer life than standard pneumatic tires since it eliminates the possibility of blowouts, flat tires, or tires operating with low air pressure. By virtue of the portion of the tire in the footprint region not bearing a significant portion of the load, non-pneumatic tire may also exhibit a more comfortable ride subject to less noise and vibration and improved handling capabilities.
Abstract:
This skew-symmetric non-pneumatic tire focuses on the mechanical aspects of the design of the design to solve problems associated with the ride comfort, durability and assembly of a non-pneumatic tire. The tire has a generally cylindrical hub surrounding the axis of rotation and a generally cylindrical outer surface sharing the common axis of rotation; a pair of disk-like side wall members comprising non-buckling webs extending between and mating with their respective hub and outer cylindrical surface; said pair of side wall members have webs sharing a common configuration resulting in an assembly with a skew-symmetric structure with respect to the loading direction; and a tread-band circumscribing the cylindrical outer surfaces of the side walls.
Abstract:
A non-pneumatic tire for supporting a load by working in tension comprising a generally annular inner ring, a generally annular outer ring, and an interconnected web having a plurality of web elements and comprising a plurality of generally polygonal openings. Web elements are sized, curved, oriented, and comprised of varying thicknesses of material which facilitates buckling when subjected to a compressive load. By buckling, those elements in a deformed portion of the tire between a wheel and a footprint region where the tire contacts a surface can assume a significantly reduced portion of the load, if any. This causes web elements in other portions of the interconnected web to operate in tension to support the load.
Abstract:
The present application discloses a tire and wheel combination for a vehicle comprising a wheel comprising a rim; a tire comprising an annular side wall, an interior surface, wherein the tire is mounted on the rim; and a foam support insert comprising a compressible annular main body, wherein the annular main body comprises a central bore configured to received the wheel rim, and having an outer diameter that is greater than the inner diameter of the interior surface of the tire and being compressed and mounted inside the air cavity of the tire and circumferentially secured to the interior surface of the tire, wherein the foam support insert further comprises a first foam insert having a different foam density than the annular main body, and the foam insert is coupled to the main body and configured with regular or irregular geometric design; wherein the tire and wheel combination is not air tight sealed and filled with pressurized air, and vehicle comprising such combination.
Abstract:
The invention provides a non-pneumatic tire in which a fluctuation in a circumferential direction of tire rigidity is hard to be generated by a positional relationship between a spoke position and a center position of a ground surface, and a buckling of a ground portion between the spokes can be sufficiently suppressed. In a non-pneumatic tire T comprising a support structure body SS supporting a load from a vehicle, the support structure body SS includes an inner annular portion 1, an intermediate annular portion 2 concentrically provided in an outer side of the inner annular portion 1, an outer annular portion 3 concentrically provided in an outer side of the intermediate annular portion 2, a plurality of inner coupling portions 4 coupling the inner annular portion 1 and the intermediate annular portion 2, and a plurality of outer coupling portions 5 coupling the outer annular portion 3 and the intermediate annular portion 2, wherein the inner coupling portions 4 and the outer coupling portions 5 are divided in a tire width direction, are independent in a tire circumferential direction, and are provided so as to be shifted from each other in the tire circumferential direction per zones which are divided in the tire width direction.
Abstract:
The invention is a light weight composite tire for use on multipurpose vehicles. The first of the tire is divided into chambers by laminated bulkheads which adds strength. The tire could be used on all terrain vehicles such as a rescue vehicle that requires light weight and the ability to be used on thin ice, mud, slush, swamps, marshes, rivers etc.
Abstract:
A pair of roller skis 300 each constituted by attaching elastic wheels 302 to a boot-placing plate 301 in the front thereof and at the back thereof. The elastic wheels 302 each comprises a wheel supporting means having a circular rim part on the outer periphery and a tire part mounted on the circular rim part of the wheel supporting means and being elastically deformable in the direction perpendicular to the running direction of the wheel. Each elastic wheel 302 enables the running direction thereof to be simply changed with the wheel shaft kept in the same direction, and utilization of the features permits a skier to operate the roller skis with a feeling similar to that afforded by conventional snow skis.
Abstract:
A finned lug wheel frame assembly is provided wherein the frame has openings extending about the periphery of the same, and upon which plastic rings bearing a series of tongues or lug portions are mounted. The tongues or lugs extend about the plastic ring alternately with spaces and these spaces are cut to provide opposed beveled faces and fins upon the lugs from which road gatherings of mud, water and snow can be readily expelled with the release of the lug portions from the ground surface. The lugs are generally of hexagonal section and tapering from their base outwardly and inwardly to their outer end leaving a flat hexagonal shape road contact face. The rows of lugs and their integral rings are laterally spaced upon the rim so as to provide openings through which road gatherings may be passed into the rim upon engagement with the road surface and outwardly of the rim by centrifugal action so as to keep the tire and rim free of such road gatherings.