A wheel assembly provides an expanded air-pressurization chamber to increase the load capacity of the mounted tire. The wheel assembly includes an axle shaft, including flange plates mounted at opposite ends of the shaft and a mounting disc attached to each flange plate. There is an annular-shaped locking ring attached to each mounting disc. A cylindrical insert assembly is mounted between the pair of locking rings. A central section is defined in the tubular body extending between a pair of annular flange wall portions and includes an array of holes. The tire bead at each inner edge of a tire is located within the annular bead-receiving channels formed between the locking ring and insert assembly. A dual air-pressurization chamber is formed, one radially outward and the other radially inward of the tubular body of the insert assembly.

An embodiment vehicle includes a wheel having a width that is changeable and a controller configured to generate a control signal for changing the width of the wheel. The wheel includes an inner wheel connected to an axle of the vehicle, an outer wheel connected to the inner wheel, and a driver. The driver is configured to move the outer wheel along a longitudinal direction of the axle of the vehicle to change the width of the wheel by generating power in response to the control signal.

The present invention discloses a resistance force control structure of driven pulley device, which is pivot mounted on a wheel of a driven pulley device, and primarily uses damping oil or a magnetic force to achieve a resistance effect. The magnetic force portion can also be added to a gear structure to present another configuration of a resistance force control structure to achieve change in magnetic force to increase the stabilizing effect of a wheeled frame. Moreover, an adjustable mechanism enables the user to control changes in the height of the damping oil level or magnetic force strength to control the rotational speed of a wheel.

[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 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.

To provide an idler of a crawler-type traveling device which secures the strength while suppressing an increase in the weight and cost, and a crawler-type traveling device provided with the same. An idler includes a hub section that is axially supported; a rim section that is disposed coaxially with the hub section; and plates that connect the hub section and the rim section. At least one of the hub section and the rim section has flange sections that rise toward the other. The plates are mounted to the flange sections.

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 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.