A bicycle disc wheel includes two discs respectively formed of two composite material layers with a foam material bonded between the two composite material layers, a wheel frame arranged between the two discs in a concentric manner; and a spoke frame composed of a plurality of I-shaped ribs and sandwiched between the two discs. Each I-shaped rib is composed of a foam material and a composite material cladded on the foam material. Each I-shaped rib has a relatively wider opposite upper and lower sides and a relatively narrower middle section when it is viewed from the cross section, and the relatively wider opposite upper and lower sides of each I-shaped rib are respectively attached to the respective inner side of the two discs.

A bicycle disc wheel comprises a first disc panel and a second disc panel. The first disc panel has a first side outer surface and a first side inner surface and the second disc panel has a second side outer surface and a second side inner surface. The first side outer surface radially extends from a first disc panel outer perimeter to a center opening and the second side outer surface radially extends from a second disc panel outer perimeter to the center opening. The second side inner surface faces the first side inner surface. A brace is coupled to the first side inner surface and the second side inner surface that provide radial and axial structural support to the disc panels.

A multidirectional wheel in which the wheel has a wheel body rotatable about a wheel axle and having two half-shells and has a plurality of rotating bodies which are located at the outer periphery of the wheel body and via which the wheel can roll off. At least one half-shell, and preferably both half-shells, has/have mounts in which end regions of the axles of the rotating bodies are received or which project into end regions of the axles of the rotating bodies, with the mounts of the half-shells being configured as continuously converging.

A wheel assembly for an automotive vehicle is described herein. The assembly includes a cylindrical rim, a tire around the rim, two spoke assemblies, a wheel hub, a brake assembly, and a mounting arm. The rim is symmetrical, and has a first flange on a first side of the rim and a second flange on a second side of the rim. The tire is disposed around the rim. The first spoke assembly is coupled to the first flange and has a hub-mounting structure at its center. The second spoke assembly is coupled to the second flange and has an opening at its center. The wheel hub and brake assembly are disposed inside the rim between the first and second spoke assemblies, coupled to the hub-mounting structure. The mounting arm passes through the opening at the center of the second spoke assembly and couples the wheel assembly to the vehicle.

[Technical Field] The present invention relates to a wheel deformation mechanism and a structure of a vehicular shock-absorbing device using the mechanism. [Technical Problem] In the conventional suspension device, there are problems that a vibration damping effect for an in-wheel motor vehicle is too low to alleviate an impact on the wheel and that a mounting space is required on the vehicle body side. There is a problem that since the conventional tire is poor in ability to absorb distortion of a contact patch caused by turning, the contact patch of the wheel is subjected to horizontal friction at the time of direction change. [Solution] An expansion and contraction mechanism as shown in FIG. 1 that connects two rotors and a band-shaped tread by a movable arm is incorporated in a wheel, [Main Use of Invention] The vehicle wheel is expanded and contracted by a rotation speed difference between the two rotors so as to control the posture of the vehicle body.

An aircraft wheel assembly that includes first and second hub components having an axis and respective first and second sets of circumferentially spaced apart interface elements. The first and second hub components may be rotatable relative to one another about the axis between a first position and a second position. In the first position, the first set of interface elements is axially movable relative to the second set of interface elements. In the second position the first set of interface elements axially overlaps the second set of interface elements to prevent axial movement of the first hub component relative to the second hub component.

A wheel for working the fields comprises a wheel body comprising a pair of flanges and a spacer, and a tire cover, generally annular, comprising two side walls, a tread connecting the side walls to one another and an opening opposite to the tread. The tire cover is mounted on the wheel body in such a way that the spacer is positioned across its opening. The flanges are arranged in such a way as to block the side walls of the tire cover against the spacer in the vicinity of the opening.

The present invention is related to durable, increased traction irrigation wheel systems and method of increasing traction and durability of an irrigation wheel. A segmented, fully enclosed, circular rotating drum may be provided with may be configured to rotate around a central axis. A system may have integrally placed flat sheets on a periphery of a segmented, fully enclosed, circular rotating drum, at least one traction projection, and perhaps even at least one influential traction enablement component.

A bicycle disc or spider wheel including: a hub; a rim having a radially outer tire-coupling region, a first sidewall, a second sidewall; an axis of rotation; and a median plane. A pair of pretensioned disc or spider wheel-type structural elements are integral with the hub and with the rim. The first sidewall extends on a first side of the wheel, with respect to the median plane, on which a component of a motion transmission system or, when there is none, a disc of a disc brake is provided at the hub, and the second sidewall extends on the opposite side, with respect to the median plane. The first sidewall of the rim has a minimum distance from the median plane that is smaller than that of the second sidewall of the rim.

In an aspect, there is provided a wheel for a human-powered vehicle, comprising a wheel hub (6) rotatably mountable on a central axle (5) defining a wheel rotation axis, a first cover (1) secured to the wheel hub, a circumferential rim (1c) structured to fully support a tyre (4) thereon, and a second cover (2) secured to one of the wheel hub and the first cover adjacent the wheel hub, and mating with the first cover distal from the wheel hub.