A two-piece wheel may have a first section and a second section. The wheel has areas of varying diameter across its width, and the first second and the second section are joined at the area of the wheel with the smallest diameter. The first section can be a spoke section with spokes extending from the central hub and the second section can be a barrel section.

A coupling structure for coupling first and second wheel pieces includes (a) a radially-positioning coupling including a radially-positioning protrusion and a radially-positioning recess, (b) a circumferentially-positioning coupling including a circumference protrusion and a circumference protrusion-receiving recess and (c) an axially-positioning coupling including an arm and a claw receiver. As a result, even eliminating welding and coupling by a bolt, it is possible to couple the first and second wheel pieces securely by a physical coupling such as fitting, engaging, inserting and press-fitting.

A wheel assembly for a vehicle includes a wheel rim suitable to rotate around an axis of rotation (a-a), defining an axial direction (A-A) parallel or coincident with the axis of rotation (a-a), an orthogonal radial direction (R-R), and a circumferential direction locally coincident with a tangential direction (T-T) orthogonal to the axial direction (A-A) and the radial direction (R-R), the wheel rim having a radially outer side, opposite the axis of rotation (a-a), and a radially inner side facing the axis of rotation (a-a), the rim being suitable to receive externally a tire, and wherein the wheel rim forms internally a cylindrical chamber of the rim delimited radially from the inner side; a motor comprising a rotor and a stator; the rotor being supported, free to rotate, on the stator; said stator being fixed to a stator support; the motor being housed in the cylindrical wheel rim chamber of the wheel rim; the rotor is selectively, removably and rigidly connected to the inner side of the wheel rim, avoiding the interposition of elastic members or damping members.

A tool for working in fields includes a first flange and a second flange which mount one on the other, forming a wheel body. The first flange includes a central portion, a generally annular peripheral portion and at least one arm which connect(s) the central portion and the peripheral portion to each other. The second flange is homologous to the peripheral portion of the first flange. In the assembled state, the wheel body has a rim which is formed together by the peripheral portion of the first flange and the second flange and a hub which is formed by the central portion of the first flange.

Disclosed is a wheel for vehicles, in particular with electric or hybrid propulsor, apt to recover at least a part of the energy which is required in order to deform the tire of the wheel during its rotation and to transfer the energy, recovered in this manner, from the wheel to the vehicle on which the wheel is mounted, so that this energy, recovered, is used to generate the electrical energy intended to feed the devices installed on the vehicle, such as in particular the respective electric propulsor.

Embodiments of collapsible wheels and methods of making collapsible wheels are generally described herein. Other embodiments may be described and claimed.

A wheel assembly having two cylindrical bodies, each with a diameter approximately the same as the interior diameter of a tire. On the front body, are found an outer edge on one side and bolt receiving means on the opposite site and alignment holes. On the back body is found an outer edge, bolt receiving means that run across the entire length of the back body, are located on the interior of the body and are placed equidistant around the body. Each bolt receiving means aligns with a complementary bolt receiving means on the front body. The back body also has alignment pegs that fit into the alignment holes of the front body for proper alignment of the front and hack bodies. Holes on the hub, located on the front body permit placement of the tire and wheel assembly onto an axle of an automobile or other wheeled device.

A wheel assembly in accordance with various embodiments for use with an aircraft can include an inner surface, a first lug extending into an area defined by the inner surface and a heat shield configured to be coupled to the first lug. The wheel assembly can also include a gasket configured to be positioned between the inner surface and the heat shield and to remain in place relative to the first lug in response to rotation of the wheel assembly relative to the aircraft.

A driver key is provided for coupling a rim base and a bead seat band of a wheel rim assembly together. The driver key includes a body having a first engagement surface and a second engagement surface. The first and second engagement surfaces are each oriented at an angle of less than ninety degrees relative to a longitudinal axis of the body.

A method for rotationally driving an aircraft wheel, the wheel being equipped with a rim comprising two half-rims assembled by bolts (5). According to the method, a drive member for generating a torque for driving the wheel is controlled. The transfer of the drive torque to the wheel is accomplished via the rim assembly bolts.