The invention relates to a manufacturing method and a structure of a wheel rim. The manufacturing method mainly comprises the steps of forming a rim body made of a carbon fiber material in a cavity of a molding die; forming a rim assembly by extruding a metal material and assembling the rim assembly to the rim body; and forming a rim coating by tightly encapsulating a carbon fiber material on a surface of the rim body assembled with the rim assembly.

An aerodynamic tailfin rotatably attached to a shaft-shaped member disposed on a vehicle. The tailfin swivels about the round shaft-shaped member for reduced drag in response to winds varying in direction impinging thereon.

A wheel assembly comprising a wheel disk and a tread member disposed around the wheel disk. The wheel disk can have a substantially conical shape when in an unloaded state, but be flexible such that it can deform under load to optimize and/or maximize contact area between the tread member and a driving surface.

A wheel assembly comprising a wheel disk and a tread member disposed around the wheel disk. The wheel disk can have a substantially conical shape when in an unloaded state, but be flexible such that it can deform under load to optimize and/or maximize contact area between the tread member and a driving surface.

A disc portion and a rim portion of a tire wheel are integrally formed simultaneously, with a resonance pipe formed between the disc and rim portions, by inserting a molten metal into a space formed by a mold combined with the resonance pipe by core pins.

Provided is a method for manufacturing an aluminium alloy automobile hub, the method comprising the following steps: putting a workpiece in the shape of a shallow hat on a first spinning base, wherein an opening of the workpiece faces upward, and a first upper pressure head extends into the workpiece from above and then fixes the workpiece; and pressing out a rim for spokes on an outer side of a lower portion of the workpiece by means of spinning rollers. In the method, series and improved aluminium alloy sheets are taken as raw materials and are integrally formed by multi-pass powerful spinning machining, such that same are deformed step by step in the whole process according to the properties of aluminium alloy, thereby forming a blank of the hub, and then the hub is formed by finishing.

A solid-tire-and-hub assembly is provided. The assembly includes a solid tire defining a pair of opposed, spaced side surfaces and a pair of opposed, spaced facial surfaces extending between the side surfaces such that the solid tire defines a substantially trapezoidal transverse cross-section. The solid tire is disposed about a partially hollow hub, which defines a substantially I transverse cross-section substantially aligned with the cross-section of the solid tire, an axial aperture configured to receive a drive shaft, and a plurality of holes defined about the aperture. A power-drive unit is also provided. The unit includes a housing, a drive shaft, and at least one of the solid-tire-and-hub assembly connected to the housing.

A solid-tire-and-hub assembly is provided. The assembly includes a solid tire defining a pair of opposed, spaced side surfaces and a pair of opposed, spaced facial surfaces extending between the side surfaces such that the solid tire defines a substantially trapezoidal transverse cross-section. The solid tire is disposed about a partially hollow hub, which defines a substantially I transverse cross-section substantially aligned with the cross-section of the solid tire, an axial aperture configured to receive a drive shaft, and a plurality of holes defined about the aperture. A power-drive unit is also provided. The unit includes a housing, a drive shaft, and at least one of the solid-tire-and-hub assembly connected to the housing.

Disclosed is a vehicle support device comprising a polygonal surface which may be affixed to a front edge of an at least one circumferential plate (110) or to a midline of an at least one circumferential plate (110). The polygonal surface (105) may be a pentagon polygon having five sides, a hexagon polygon having six sides, an octagon polygon having eight sides, or any polygonal shape. The polygonal front surface may have an at least one asymmetrical side. The polygonal front surface (105) may have a plurality of lug bolt supports (120), which may have five lug bolt supports (120), seven lug bolt supports (120), eight lug bolt supports (120), or twelve lug bolt supports (120). The vehicle support device may have an axle support centerline (125), a vehicle support device centerline (130), and an non-zero centerline offset (135) between the axle support centerline (125) and the vehicle support centerline (130) to provide for offset alignment of the vehicle support device in a vehicle wheel well.

The vehicle support device may be used to support any wheeled automobile, trailer or tractor, to provide levelness and stability of the vehicle, prevent UV and time or gravity-caused degradation of the tires, and extend the life of the tires, and on other vehicles with modification. For most automobiles, trailers, and tractors, the vehicle support device may replace one or more of the tires and wheels on an axle to securely and solidly support the vehicle on ground or a on concrete pad.

A minimal fairing apparatus minimally shielding the faster-moving drag-sensitive uppermost wheel surfaces from headwinds reduces overall vehicle drag. The apparatus includes various upper wheel fairings of FIGS. 1-6. Each fairing shields a primary vehicle-drag-inducing upper wheel surface from headwinds otherwise impinging thereon.