A waveform reinforced skateboard deck with an intermediate body extending between a nose end and an opposing tail end, the deck further including an outermost top rider bearing surface and an outermost bottom truck mounting surface with at least a portion of at least one of the surfaces having a plurality of spaced apart elongated waveforms defining peaks and troughs projecting along a substantially sinuous path between the nose and tail ends.

A composite panel structure has opposing outer walls or surfaces and a core comprising a plurality of ribs extending between and connected to the outer walls and defining chambers which are filled with expanding foams, non-expanding foams, gases, or a combination thereof. The outer panel surfaces and internal chamber walls or ribs are made of woven or non-woven fibrous material impregnated with one or more resins. The panel structure may be used for making a variety of products including sports equipment such as sports paddles, surfboards, kite boards, skateboards, wakeboards, as well as construction panels for walls, ceilings or floors, display panels, panels for the vehicle industry, furniture, and other structures requiring high strength to weight properties.

A skateboard system includes a first suspension member having first through third portions, each portion having a largest flat planar surface. The first portion includes a plurality of mount holes to mount it with a skateboard deck. The largest flat planar surface of the second portion is angled between fifteen and sixty degrees relative to the largest flat planar surface of the first portion and relative to the deck. The largest flat planar surface of the third portion is angled between fifteen and eighty degrees relative to the largest flat planar surface of the second portion. The third portion includes at least one opening to mount a truck assembly and/or a hanger with the third portion. The first suspension member flexes, such that an angle between the largest flat planar surface of the second portion and the deck decreases, in response to a first downward force on 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. The cart assembly has a cart height and is constrained by the chassis slot and the platform slot to a position on the chassis assembly wherein the cart height is substantially equivalent to the variable slot height. In this manner the cart assembly is configured to translate along the chassis assembly upon rotation of the platform assembly with respect to the chassis assembly. A helical drive shaft is rotationally secured within the chassis assembly and operatively coupled to the cart assembly such that translation of the cart assembly results in rotational motion of the helical drive shaft. A truck assembly is pivotally secured to the chassis assembly. The truck assembly includes an axle rotationally secured to the truck assembly and operatively coupled to a plurality of wheels. The axle is operatively coupled to the helical drive shaft such that rotation of the platform assembly with respect to the chassis assembly in a first angular direction results in rotation of the axle and respective wheels in the first angular direction.

One embodiment of a skateboarding balance device where an elongated structure (10) has four straps (16L, 16R) disposed thereunder said structure. This pad (10) is composed of flexible material. The straps (16L, 16R) provide for a method of securely attaching said pad (10) to a skateboard (SK1) by means of velcro (20L, 18R). The straps are made of material with elasticity.

A roller board has axles provided with castors and secured at the front and rear ends of a board deck such that a steering movement is transferrable to the axles by a person on the board deck by lateral shifting of weight. Steerability and problem-free operation are improved. Substantially rigid booms, one directed to the front and one directed to the rear, are provided at the front and rear ends of the board deck, respectively. A support arm pointing in the direction of the central axis of the board deck is rigidly fastened to each boom. The support arms are pivotable on the two sides about a pivot axis inclined in the direction of travel by 40° to 50° relative to the plane of the board deck. The axle of a single castor is mounted rotatably in or on each hub, with the pivot joint inside the castor.

The present disclosure provides a detachable training wheel apparatus for mounting to the underside of a skateboard tail or nose to assist with balancing a user during manoeuvres which require tipping of the skateboard onto two wheels, while allowing the board to continue rolling along the ground with minimal friction. The apparatus comprises a single wheel mounted to a mounting board by a pair of supports and a central bushing, with the opposing side of the mounting board having a flat surface provided with attachment means for detachably coupling to the skateboard underside, such as a hook and loop surface.

Various implementations include a wheel hub configured to be used with an electric vehicle. The wheel hub includes a hollow cylindrical body, a direct drive motor, a hollow axle, a battery, and a tire. The hollow cylindrical body includes a first end surface and a second end surface that is axially opposite and spaced apart from the first end surface. The direct drive motor is disposed within the hollow cylindrical body and is configured to rotate the cylindrical body about a central axis of the motor. The hollow axle has a central axis that is coaxial with the motor central axis and is at least partially disposed within the cylindrical body. The battery is disposed within the hollow cylindrical body and is in electrical communication with the direct drive motor. The tire is fixedly coupled and disposed on an external surface of the hollow cylindrical body.

The disclosed apparatus provides an enjoyable and safe way for a first rider and a second rider to ride tandem on a wheeled platform. The disclosed wheeled platform according to various embodiments may include a platform having a top surface and a bottom surface and a plurality of wheel assemblies coupled to the bottom surface. The wheeled platform may also include a first member and a second member for being grasped by the first rider and the second rider, respectively. The first member and the second member may each be coupled to the top surface of the platform and extend vertically therefrom.

A truck carrying member for coupling a conventional truck to a skateboard is described. The truck carrying member has comprises with a base plate rotatably coupled a pivoting plate at a pivot. The pivot comprises a bolt that provides an axis of rotation and a biasing member that keep that base plate and pivoting plate centered position. The base plate has a first mounting surface and a first pivoting surface that form a first obtuse angle. The pivot plate has a second mounting surface and a second pivoting surface that form a second obtuse angle that is less than the first obtuse angle. The second mounting surface extends downward from the skateboard when the truck carrying member is attached to a bottom surface of the skateboard. The pivot and biasing member help increase maneuverability of the skateboard by allowing the wheels of the truck to tuck in closer to the deck during turns.