Described herein are systems and apparatuses for securing and locking a battery or battery enclosure to a vehicle. In general, a vehicle may include a planar body mounted to any number of wheels, tracks, wings or flotation devices. In a preferred embodiment, the security device comprises a security plate and a locking pin system is used to secure the battery to any vehicle. The security plate is positioned between the fastener heads and the battery enclosure and has an opening for the locking pin to slide through. Once the pin is inserted into security plate the pin lock secures the pin in place and prevents removal of the battery or battery enclosure from the vehicle.

The disclosure relates generally to an electric skateboard. The electric skateboard may include a deck, at least a rechargeable battery pack, a control module, and a communications module, a pair of trucks mounted to the deck, a plurality of wheels mounted on axles of the trucks; and one or more motors installed in one or more of the plurality of wheels for propelling the electric skateboard. The deck may include a front end, a rear end, a top plate. The rechargeable battery pack, control module, and communications module may be enclosed in an enclosure attached to the deck.

A rotation powered vehicle drive mechanism includes an elongated chassis slot disposed within a respective lateral exterior portion of a chassis assembly. An elongated platform slot is disposed within a respective lateral portion of a platform assembly, and is configured such that it is substantially opposed to the chassis slot. The platform assembly is pivotally secured to the chassis assembly thereby allowing for rotation through a platform rotation angle of the platform assembly with respect to the chassis assembly about a rotation axis. The rotation of the platform assembly results in an increase or decrease of a variable slot height which is measured between the chassis slot and the platform slot. A cart assembly is disposed between the chassis assembly and the platform assembly, and is operatively coupled to the chassis slot and to the platform slot.

A skateboard truck that is adjusted for different amounts of torsional stiffness. The axle of the truck is tensioned to change the torsional stiffness of the truck. The truck includes a fork shaped structural arm having tongs on the distal end. The ends of the tongs include mounting for the axle which supports the wheels. The tension in the axle determines the amount of torsional stiffness. Additionally, the distance between the wheels is adjustable to affect the torsional stiffness.

A skateboard includes a deck, at least a front wheel set and a rear wheel set. The front wheel set, which is arranged at a bottom of the deck at a position close to a front end thereof, includes at least one rigid and rotatable front wheel frame and at least two front wheels. The rear wheel set, which is arranged at a bottom of the deck at a position close to the rear end thereof, includes at least one rigid and non-rotatable rear wheel frame and at least two rear wheels. The outer side of the wheel is circular or arc-shaped. The structure of the skateboard allows the user to change a center of gravity and to lift the sides of the board with foot, so as to only rely on the outer arc of the left or right front and rear wheels to slide, while the rotatable front wheel frame in the left or right side may still be utilized for rotating in the forward direction, which allows a skateboard experience of forward or changing the travelling direction.

In a preferred embodiment a wheeled platform apparatus and method for use in rolling on a surface are provided. The apparatus includes a platform having a top surface, a bottom surface, a front portion, a center portion, a rear portion, and a first wheel and a second wheel that interface with or are positioned below the bottom surface of the platform to facilitate rolling movement of the platform. The apparatus may further include an attachment device interfacing with the top surface and the footwear, as well as a footrest to support the forefoot of another foot, or footwear.

An electric skateboard comprising: a deck; a front truck and a rear truck; a pair of wheels rotatably connected to each truck, wherein one or both pairs of wheels are driven by sensored motors; a communications module configured to receive control instructions from a wireless remote control and to transmit data to one or more external devices; a controller in communication with the communication module and the motors; and a battery supplying power to the motors, communications module and controller.

A skateboard comprising a board including a front portion and a rear portion, the front and rear portions being disposed in a horizontal plane such that a uniform gap is formed there between; a front wheel assembly including a pair of wheels, the front wheel assembly being secured to a bottom surface of the front portion of the board; a rear wheel assembly including a pair of wheels, the rear wheel assembly being secured to a bottom surface of the rear portion of the board; and a steering control assembly secured to both the front portion and the rear portion of the board, wherein the steering control assembly is configured to allow pivotable movement of the front portion and the rear portion of the board about both a longitudinal center axis of the skateboard that lies in a horizontal plane and a vertical pivot axis that is transverse to the longitudinal center axis of the skateboard.

A skateboard comprising a board having an independent suspension and steering assembly connecting two wheels to the board. The suspension assembly comprises a support frame rotatably coupled to an underside of the board. The steering assembly comprises a steering crank fixed to and extending from an underside of the board. The suspension assembly further comprises for each wheel: a spindle for rotatably supporting the wheel; a knuckle for holding the spindle; an upper and a lower suspension arm pivotably coupled to the support frame at an upper and at a lower point of the support frame, respectively, and also pivotably coupled to the knuckle at an upper and at a lower point of the knuckle; and a spring for resiliently holding the knuckle against the board. The steering assembly further comprises for each wheel: a tie rod coupled by a ball joint to the steering crank and to the knuckle.

In one aspect, a modular board exercise system includes a skateboard. The skateboard includes a deck. The deck includes a plurality of hookable portions, and a pair of skateboard trucks coupled with a bottom side of the deck. The skateboard truck includes a pair of skateboard wheels. The system includes a plurality of resistance bands includes an elastic resistance band, a handle coupled with the distal end of the elastic resistance band, and a connecter clip coupled with the proximate end of the elastic resistance band. The connecter clip is attachable to one of the hookable portions. The system includes a stopper base. The stopper base includes a flat pad having a pair of grooves configured to hold each pair of skateboard wheels in a fixed position.