A self-balancing vehicle includes a vehicle body having a housing with left and right sides which are independently moveable. A unitary support bar is disposed within the housing, and a left drive wheel and an opposed right drive wheel are each coupled to the support bar. A bracket encircles the support bar; the bracket has a cylindrical body formed with a slot through the body. A set screw is fixed to the support bar and is received within the slot to limit rotational movement of the support bar with respect to the bracket.

Improved skateboards and methods of obtaining or providing skateboards with improved trucks. Trucks have two axles or axes, two primary wheels, and two secondary wheels, and skateboards have eight wheels, four in front and four at the rear portion of the skateboard. The four primary wheels support most or all of the weight of the skateboard when the skateboard is on a flat surface, and the two secondary wheels support the weight of one portion of the skateboard (e.g., front or rear) when the primary wheels cross a crack (e.g., a sidewalk contraction joint). In various embodiments, the secondary wheels are located outboard of the primary wheels. Further, in a number of embodiments, the axis of rotation or axle of the primary wheels remains parallel to that of the secondary wheels, whether the skateboard is going straight or turning.

A truck includes a base plate, a hanger, a kingpin, and a bushing assembly. The base plate includes a coupling portion and a contact portion. The kingpin is disposed within a portion of the hanger to rotatably couple the hanger to the base plate. The bushing assembly includes at least one bushing disposed in a recess of the contact portion and in contact with the hanger. The bushing assembly including a bushing adjustment coupled to at least one of the base plate or the hanger and configured to selectively engage the at least one bushing to transition the bushing assembly between a first configuration in which the at least one bushing exerts a first force in response to rotation of the hanger and a second configuration in which the at least one bushing exerts a second force different from the first force in response to rotation of the hanger.

Disclosed is a folding car for children. The folding car comprises a rear frame, rear frame is connected with a seat; a front frame connected to the rear frame in a back-and-forth movable manner; a front lateral rod, a front portion of which is rotatably connected with the front frame; a rear lateral rod rotatably connected to the front lateral rod and the rear frame; a pedal rod rotatably connected to the front frame; and a connecting rod connected with the rear frame in a back-and-forth movable manner, and a front portion of the connecting rod being connected with the pedal rods in a slidable and rotatable manner. The folding car for children realizes the folding of a seat-type scooter for children, has a simple and new overall structure, is convenient to fold and has a small volume after being folded.

The present steerable wheel assembly incorporates a lean-to-steer mechanism into an inner race of a roller bearing, while a wheel is mounted to an outer race of the roller bearing. A shaft extending from the mechanism is attached to a body, and the mechanism acts to steer the outer race and the wheel about a vertical steering axis when the shaft is tilted about a horizontal axis. The mechanism can be a pivot joint, providing a linear steering response, or can be a lean-to-steer mechanism that provides a non-linear response where the steering action is not proportionally responsive to tilting over the expected range of tilting.

The present invention relates to sports equipment, namely, to roller skates design enabling an athlete to achieve high speed of movement with better comfort and improved motion control, in particular, in case of movement on a lower quality road surfaces. Roller skates consist of two skates—right and left ones, each comprising a spatial rectangular frame with its upper surface adapted to be attached to a frame of the corresponding shoe, either left or right one, and its lower side having two pairs of rollers pivotally attached thereto such that the rollers may rotate being in contact with the roadway and the rollers' axes are parallel to the frame plane, and according to the invention each pair of front and rear rollers of each skate is pivotally attached to the corresponding Z-shaped wheel arm, either front or rear one, which has its central section pivotally attached to the corresponding smaller side of the spatial rectangular frame, and the distance between the axes of the inner rollers of a skate is greater than the distance between the axes of the external rollers. The present invention is aimed to provide such roller skates, which would be more reliable and safe due to increased stability of the skates during movement, also in case of lower quality road surface and during cornering. This objective is achieved by way of creating conditions for uniform distribution of the load arising from the weight of the athlete during movement among all four rollers of each skate, even when moving on a lower quality road surface.

An improved skateboard truck includes a baseplate, a hanger, and a kingpin assembly for securing the hanger to the baseplate. A first pivot surface is associated with the baseplate. A pivot plate is associated with the hanger. The pivot plate has an outer edge that defines a second pivot surface. The baseplate and the hanger are configured such that the second pivot surface engages the first pivot surface when the hanger is secured to the baseplate by the kingpin assembly. One of or both the first pivot surface and the second pivot surface has an arcuate profile that allows the baseplate to rock from side to side relative to the hanger.

A customizable skateboard truck assembly comprising an adjustable base plate and a hanger with both adjustable rake and ride height. Further, the skateboard truck assembly disclosed utilizes an open bushing platform that allows for unlimited shapes to be used for the bushing relative to its perimeter. The added space between the hanger and the baseplate allows the truck assembly to fit multiple bushing thicknesses while also choosing to maintain or change the hardness for the bushing. The thickness, hardness, and shape of the bushing all have an effect on the truck assembly's responsiveness and feel for the user. Additionally, the truck assemblies comprise adjustable cams for regulating rotation, or in other words, providing a maximum angle of rotation to the hanger to avoid wheel bite, thereby increasing safety an control of the skateboard by the user. The customizable skateboard truck assembly facilitates smooth and precise motion of the skateboard.

An improved skateboard truck includes a baseplate, a hanger, and a kingpin assembly for securing the hanger to the baseplate. A first pivot surface is associated with the baseplate. A pivot plate is associated with the hanger. The pivot plate has an outer edge that defines a second pivot surface. The baseplate and the hanger are configured such that the second pivot surface engages the first pivot surface when the hanger is secured to the baseplate by the kingpin assembly. One of or both the first pivot surface and the second pivot surface has an arcuate profile that allows the baseplate to rock from side to side relative to the hanger.

A human-machine interaction vehicle includes a vehicle body and a pair of wheels coupled with the vehicle body. The vehicle body includes a support frame, at least one pedal disposed on the support frame, a first position sensor, and a controller. The support frame is rotatably connected to the wheels. The first position sensor is configured to detect attitude information of the two pedals relative to the support frame. The actuation device drives the wheels to rotate based on the attitude information. The human-machine interaction vehicle includes a support frame, and the pedal is arranged on the support frame independently.