Abstract: An electric skateboard including a deck, a wheel and an electric motor mounted to a drive truck, the wheel rotatably supported by the drive truck and the electric motor configured to drive the wheel, wherein the drive truck is mounted to the deck, a battery mounted to a power truck and configured to power the electric motor, wherein the power truck is mounted to the deck, and a processor configured to control operation of the electric motor.

Abstract: A locking mechanism for a foldable motorized vehicle for locking a main frame body thereof comprises a pulling arm, locking shafts, shaft sleeves, elastic elements, and locking pins. The shaft sleeves are fixedly positioned in parallel below the main frame body and respectively sleeved on the locking shafts. Each of the locking pins is fixed on one end of a corresponding locking shaft and penetrates corresponding locking holes on the main frame body. Each elastic elements is sleeved on the corresponding locking shaft and pressing against the locking shaft and the corresponding shaft sleeve, respectively. The pulling arm comprises a pulling rod pivoted on one end of one locking shaft, and a connecting member with one end pivoted on one end of the other locking shaft, and the other end pivoted on the pulling rod.

Abstract: Personal transport means for walking at faster speeds than normal walking, made up of a pair of wheeled shoes or wheeled undersoles (1-1) that can be adapted by quick attachment (1-2) to the soles of the normal shoes of a walker, laterally articulated (1-3) to follow the natural movements of the heels relative to the tips of the feet (1-10) during normal walking, and allowing walking at higher speeds, without any skating movements, without having to gain momentum, and without modifying the rhythm, amplitude or longitudinal stability of natural walking, by means of a servomotor (1-4) which allows the speed of the driving wheels to exceed the skidding force (1-5a, 1-5b) resulting from the force transmitted by the supporting leg (1-6), and comprising an accelerator (1-8) and a brake (1-9) controlled by the foot of the walker.

Abstract: The present invention relates to a method for controlling a reversible seat belt pretensioner in a motor vehicle, comprising the steps of detecting the speed and the steering angle of the vehicle, calculating an expected turning rate of the vehicle about its vertical axis from the speed and the steering angle and calculating an upper and a lower turning rate limiting value using the expected turning rate, detecting the actual turning rate of the vehicle about its vertical axis and activating the seat belt pretensioner of the vehicle if the actual turning rate of the vehicle is greater than the upper turning rate limiting value or is less than the lower turning rate limiting value. The present invention also relates to a safety arrangement for implementing the method according to the invention.

Abstract: A transporter for transporting a subject over a surface that may be irregular. The transporter includes a support platform for supporting a load, the loaded support platform defining fore-aft and lateral planes and characterized by a load distribution. A plurality of ground contacting elements are coupled to the support platform. At least one of the plurality of ground contacting elements is driven by a motorized drive arrangement. A sensor module generates a signal indicative of the load distribution of the loaded support platform. Based at least on the load distribution, a controller commands the motorized drive arrangement.

Abstract: A motor-driven vehicle includes front and rear wheels suitable for enabling the movement thereof through rolling; a structure extending between the front and rear wheels, the structure being suitable for supporting the feet of a user in a standing position on the vehicle; at least one electric motor rotating at least one of the wheels; and a device for managing the electrical power supply for the at least one electric motor. The vehicle comprises first and second bearing areas for feet, the second bearing area having a sensitivity specific thereto, and the power supply management device is suitable for generating an electrical power supply signal from the motor that is variable on the basis of the bearing detected in the second bearing area.

Abstract: To provide a coaxial two-wheel vehicle that allows a person to easily get off the vehicle with high safety, and a method of controlling the same. A coaxial two-wheel vehicle according to the present invention includes step portions on which feet are placed, and a handle capable of operating back-and-forth movements, and said vehicle moves with a passenger riding thereon. Upon detecting that the passenger gets off the vehicle by using a getting-off switch or the like, a control device of the coaxial two-wheel vehicle performs an assist control for getting-off the vehicle by increasing an inclination angle of each of the step portions with respect to a direction in which the passenger gets off the vehicle.

Abstract: The vehicle (1) includes a chassis (2) and a pair of track assemblies (3, 4) mounted at the front and rear of the chassis respectively. At least one of the track assemblies is powered by a motor (5) to propel the vehicle. The chassis include mounting points (6, 7) for attaching the track assemblies. A deck area including rider footpads (8, 9) flanks a central motor mounting section (10).

Abstract: A scooter has a platform on which a rider can stand, a front wheel attached to a steering system including an upstanding handle bar and rear wheel which is driven. The scooter can be folded at a hinge line across the platform so to allow it to collapse. A case for the scooter includes a front part and a rear part covering the front and rear wheels with the parts brought together by the collapsing of the platform. This folding action also uses a pivot link to move the front and rear wheels pivoted within the respective case parts to a folded position. The steering includes a headstock with the steering bar connected to the front fork by a drive coupling which converts the rotation of the steering bar about the generally vertical axis to the rotation of the fork about an inclined axis.

Abstract: A snowboard has a removable tripod at the rear. A tiller mounts atop the tripod. The rider end of the tiller supports a motor. The distal end of the tiller supports a powered wheel. The power assembly doesn't compromise the shape and dynamics of a traditional snowboard as much of the prior art has. Another advantage is that it can be made integral with the snowboard and also easily removed. The ease of control with the handle and radical turning ability of over 180° make it unique in this field. The tripod mounting and balancing are also unique and useful. It is lighter in weight and simpler than previous embodiments in this are. The tiller can be locked with the wheel up for freestyle snowboarding.

Abstract: A motorized skateboard (10) having an electric motor (102) that rotates a rear fifth drive wheel (86) that extends behind the rear truck (36) of the motorized skateboard (10). The drive wheel (86), which is biased downward by the force of gravity, interfaces with the surface of the ground. A hand-held cable assembly (140) having a power switch (142) controls the operation of the electric motor (102) which applies power to and causes the rear drive wheel (86) to rotate. The rotating drive wheel (86) further causes the motorized skateboard (10) to be propelled forward. The forward motion will continue as long as the rider depresses the power switch (142).

Abstract: A device and method for assisting a user in regaining his balance is disclosed. The device comprises: at least one sensor for sensing changes in weight distribution on any of the feet of the user, at least one propulsion unit to be coupled to any of the feet of the user for displacing a foot of the user when a change in the weight distribution on that foot reaches a predetermined condition; and a controller for receiving signals from the sensor indicative of the predetermined condition and activating the propulsion unit. When the predetermined condition is determined the propulsion unit displaces a foot of the user mechanically in a direction that results in the repositioning of the support area of the user beneath the center of mass of the user, thus allowing the user to regain balance.

Abstract: A pair of shoes is provided having retractable motorized wheels. Each of the shoes has an upper, a sole, and first and second wheels mounted on the sole and movable from a retracted to an extended position. When the wheels are in an extended position, at least one wheel of one of the shoes engages a battery-powered, DC motor mounted on the shoe. The motor is controlled by a hand-held throttle. A latching mechanism engages to secure the wheels in the desired position. The shoes may be used for skating, with and without power assistance, with the wheels in an extended position, and may be used for walking, with the wheels in a retracted position.

Abstract: A motorized vehicle is of a type which is used to travel on snow and which is equipped with at least one ski and one caterpillar track. The motorized vehicle comprises: handlebars (2) which are solidly connected to a chassis (3) of the vehicle (1); a pair of skis (4) which are solidly connected to the chassis (3) and which are not symmetrical in relation to the longitudinal and transverse axes thereof, the width of each ski decreasing from front to rear and the outer side (5) being curvilinear; and a platform (6) for a standing user, the width of the platform being greater than the maximum distance separating the two skis (4).

Abstract: A remote control electric powered skateboard has a brushless motor or a brushless hub motor installed on the lower surface of the skateboard for connecting to a battery device through a controller, so that the motors could be electrified. A driving device disposed between either afore motors and at least one wheel is controlled by the remote control, thereby permitting an automatic comparison. When the electrification of the remote control executes, the remote control spontaneously generates an initial code for a receiver in the controller to robotically distinguish and lock the code. Turning off the remote control provides an automatic decoding. A receiver receives control signals from the remote control for the controller to interpret, and accordingly the controller generates and sends distinct commands to either motor, which allows the skateboard to implement various actions correspondingly.

Abstract: An exemplary motorized personal transportation apparatus is provided that may include a motorized heeling apparatus, a motorized heel bracket or a motorized wheel assembly. The motorized heeling apparatus may include a heeling apparatus and an electric motor mounted adjacent the heeling apparatus to impart forward rotation to at least one wheel adjacent the heel of a footwear to allow walking/running on forefoot, and transition to passive rolling and then electric powered rolling. The motorized heel bracket may include a heel support structure, which may be incorporated in footwear, for supporting at least a portion of the user's heel, wheel(s) mounted adjacent the heel bracket, and an electric motor positioned adjacent the heel support structure and operable to impart forward rotation to the wheel(s). The motorized wheel assembly includes an electric motor with a wheel around the motor such that the casing or external housing rotates to impart rotation to the wheel assembly.

Abstract: To provide a coaxial two-wheel vehicle that allows a person to easily get off the vehicle with high safety, and a method of controlling the same. A coaxial two-wheel vehicle according to the present invention includes step portions on which feet are placed, and a handle capable of operating back-and-forth movements, and said vehicle moves with a passenger riding thereon. Upon detecting that the passenger gets off the vehicle by using a getting-off switch or the like, a control device of the coaxial two-wheel vehicle performs an assist control for getting-off the vehicle by increasing an inclination angle of each of the step portions with respect to a direction in which the passenger gets off the vehicle.

Abstract: A method of propelling a wheeled platform, which includes creating a source of energy upon a first change in orientation of the platform around an axis approximately parallel to a longitudinal axis of the platform and wherein the platform rotates around the axis. The source of energy is stored and released to propel the wheeled platform upon a second change in orientation of the platform around the axis.

Abstract: An exemplary motorized personal transportation apparatus is provided that may include a motorized heeling apparatus, a motorized heel bracket or a motorized wheel assembly. The motorized heeling apparatus may include a heeling apparatus and an electric motor mounted adjacent the heeling apparatus to impart forward rotation to at least one wheel adjacent the heel of a footwear to allow walking/running on forefoot, and transition to passive rolling and then electric powered rolling. The motorized heel bracket may include a heel support structure, which may be incorporated in footwear, for supporting at least a portion of the user's heel, wheel(s) mounted adjacent the heel bracket, and an electric motor positioned adjacent the heel support structure and operable to impart forward rotation to the wheel(s). The motorized wheel assembly includes an electric motor with a wheel around the motor such that the casing or external housing rotates to impart rotation to the wheel assembly.

Abstract: A folding means for a foldable apparatus, the folding means comprising a first member (2) having a locking end (4) and a second member (5) having an opening (16) through which the locking end (4) of the first member (2) is located, the locking end (4) being pivotally attached to the second member (5) via a pivot means and the locking end (4) comprising at least one catch (26), and wherein a locking means that is adapted to engage with the catch (26) and the second member (5) to lock the apparatus in a particular position.

Abstract: A radio-controlled toy skateboard comprises a deck and front and rear trucks. The individual wheels of the rear truck can be controlled separately responsive to radio signals from a remote transmitter for rotation in either direction, while the front wheels rotate freely. Also responsive to radio control signals, the rear truck is controllably pivoted with respect to the deck about a kingpin axis that is inclined rearwardly, while the front truck pivots freely about a forwardly inclined kingpin axis. When the rear truck is thus pivoted, the deck tilts about its longitudinal centerline, causing the front truck to pivot correspondingly, steering the skateboard. A pair of modeled shoes are mounted for free pivoting about pivot axes. As the board tilts toward one side or the other, the shoes pivot from a toes-in to a toes-out position, mimicing the foot movements of a live “skater”. The forward shoe is mounted on a trolley sliding freely on an inclined ramp.

Abstract: A pair of shoes is provided having retractable motorized wheels. Each of the shoes has an upper, a sole, and first and second wheels mounted on the sole and movable from a retracted to an extended position. When the wheels are in an extended position, at least one wheel of one of the shoes engages a battery-powered, DC motor mounted on the shoe. The motor is controlled by a hand-held throttle. A latching mechanism engages to secure the wheels in the desired position. The shoes may be used for skating, with and without power assistance, with the wheels in an extended position, and may be used for walking, with the wheels in a retracted position.

Abstract: The vehicle (1) includes a chassis (2) and a pair of track assemblies (3, 4) mounted at the front and rear of the chassis respectively. At least one of the track assemblies is powered by a motor (5) to propel the vehicle. The chassis include mounting points (6, 7) for attaching the track assemblies. A deck area including rider footpads (8, 9) flanks a central motor mounting section (10).

Abstract: The present invention relates to a vehicle which can travel in the front and back direction and which can turn by right and left wheels rotated when a rider riding on a step-board moves the position of rider's balance from the center of a vehicle base.

Abstract: A control unit controls a vehicle having a body to allow a user to step on, a power generator arranged to generate power that drives the body, and a first sensor and a second sensor. Each sensor preferably outputs a load value representing a load that has been applied to the body. The control unit preferably includes a processor arranged to output a command value associated with a bias of the load based on first and second load values that have been respectively detected by the first and second sensors, and a drive controller arranged to control the power generator in accordance with the command value.

Abstract: A control unit is designed to control a vehicle which includes a body arranged to allow a user to step onto the body, a power generator arranged to generate power that drives the body, and a load sensor unit arranged to output a load value representing a load that has been applied to the body. The control unit preferably includes a processor arranged to calculate a bias of the load based on the load value that has been detected by the load sensor unit and to output a command value as a function of the bias, and a drive controller arranged to control the power generator in accordance with the command value. The processor outputs the command value for generating the power when there is substantially no bias in the load.

Abstract: A propulsion device for use with skate equipment includes a frame having an upper end and a lower end, an engine mounted on the frame, a single wheel and first and second hand grips. The single wheel is mounted at the lower end of the frame and operatively connected with the engine to be driven thereby. The first hand grip is mounted on the frame above the engine and is spaced apart from the upper end of the frame when the propulsion device is placed in its normal angle of use. The second hand grip is adjacent the upper end of the frame.

Abstract: The present invention aims to provide incremental automotive transportation to a person wearing a pair of identical motorized shoes. Each shoe houses in its sole an assembly of electrically powered set of wheels clasped over longitudinally by a conveyor from heel to toe. The assembly, skewed at an adjustable angle from the longitude towards the instep, is initially in an elevated no-contact position with an underlying surface. When lowered and switched on, the assembly operates and transports the shoe forward, which is in contact with the surface through it only. The assembly is designed to neutralize forces acting to disrupt its operation during walking while the sole is equipped to provide stability by absorbing impacts. Further, multiple assemblies can be housed in one sole wherein some of them can be tilted, twisted, reflexively twisted, recessed and all have electronic sensors. Additionally, all electro-mechanical operations can be remote and computer controlled.

Abstract: A gasoline engine powered snowboard having an endless track trained about a support frame containing driven and idler wheels. A molded chassis having a contoured track support pan cooperates with a fringed track and forward and rear foot supports to enable steering with foot and body movements. Engine operation is directed from operator directed servos coupled to the engine. The support pan exhibits a beveled contour and includes a recessed center region. The track is divided into center and right and left fringe portions defined by seriatim, lateral slits. Alternating rows of transverse, laterally offset drive lugs and ground contact lugs project from internal and external surfaces of the track. The drive lugs rotate within a contoured recess provided in the support pan. The ground contacting lugs exhibit contoured thickness profiles and provide transverse horizontal and obtuse extending portions that exhibit elongated, inverted V-shapes.

Abstract: The present invention aims to provide incremental automotive transportation to a person wearing a pair of identical motorized shoes. Each shoe houses in its sole an assembly of electrically powered set of wheels clasped over longitudinally by a conveyor from heel to toe. The assembly, skewed at an adjustable angle from the longitude towards the instep, is initially in an elevated no-contact position with an underlying surface. When lowered and switched on, the assembly operates and transports the shoe forward, which is in contact with the surface through it only. The assembly is designed to neutralize forces acting to disrupt its operation during walking while the sole is equipped to provide stability by absorbing impacts. Further, multiple assemblies can be housed in one sole wherein some of them can be tilted, twisted, reflexively twisted, recessed and all have electronic sensors. Additionally, all electro-mechanical operations can be remote and computer controlled.

Abstract: A solar skateboard includes a board and a solar cell. The board includes a wheel, a motor, and an accumulation unit. The motor drives the wheel. The solar cell is disposed on the board to supply power to the motor through the accumulation unit to drive the wheel. The accumulation unit includes an outlet for an electric appliance to function as a mobile photoelectric charger, and a charging outlet is provided in case of insufficient light intensity.

Abstract: A weight-controlled, motorized vehicle can be accelerated in either direction, steered, or decelerated without hand controls and without repositioning of a rider situated atop the vehicle. Like a skateboard, the vehicle is normally ridden by a rider standing upon a platform on top of the vehicle with one foot in front of the other. The vehicle is propelled forward when the rider increases weight on the front portion of the platform and backward when weight is increased on the rear portion. The vehicle is steered like a skateboard, by tilting the platform from side-to-side. An improved drive system utilizes a single front drive wheel to power and steer the vehicle. The drive system eliminates need of a flexible power transmission coupling such as a U-joint or constant-velocity joint. It also eliminates need of the differential mechanism normally required for two laterally spaced drive wheels.

Abstract: An occupant propelled device having at least one hydraulic cylinder, a platform and a housing. The at least one hydraulic cylinder has at least two chambers in fluid communication. The platform is attachable to the at least one hydraulic cylinder, such that upon movement of the platform a hydraulic fluid is displaced from one chamber to the other chamber. The housing is attachable to the platform at a pivot point and has at least one axle adapted to receive at least one wheel.

Abstract: Battery-powered, remote-controlled, motor-driven, steerable roller skates. Each skate includes a boot, a transmitter, a base, a driving mechanism, a steering mechanism, a controller, and a receiver. The boot is worn on a foot of a user. The transmitter is battery-powered, is held by the user, and transmits wireless signals for controlling speed, steering, forward and reverse motion, and combinations thereof. The base has the boot sitting thereon. The driving mechanism is battery-powered, motor-driven, and operatively connected to, and selectively moves, the base with the boot thereon. The steering mechanism is battery-powered, motor-driven, and operatively connected to, and selectively steers, the base with the boot thereon. The controller is battery powered, disposed in the base, and operatively connected to, and selectively activates, the driving mechanism and the steering mechanism.

Abstract: A control unit controls a vehicle having a body to allow its user to step on, a power generator arranged to generate power that drives the body, and a load sensor unit arranged to output a load value representing a load that has been applied to the body. The control unit preferably includes a first memory arranged to store a load threshold value, a second memory arranged to store a plurality of data, which respectively correspond to different types of control processing to control the power generator, and a processor arranged to change to a type of control processing among the different types of control processing according to a result of a comparison between the load value and the load threshold value. The processor controls the power generator based on one of the plurality of data corresponding to the type of control processing.

Abstract: A wheel board comprising a wheel (2) with a diameter of 0.2 to 0.6 m mounted on a free wheel (21), mounted on an axle (3) situated on a vertically pivoting arm (4) arranged on the board (1), and mounted freewheeling and driven by a driving drum (17) around which is wound a band (11) that is fixed to said driving drum (17) by a first end and that is connected to the board by its second end, said driving drum (17) being equipped with a return device (19) so that, when the board (1) is not loaded, the central wheel (2) is in a lower position relative to said board (1) and said band (11) is wound around the drum (17) driving the wheel.

Abstract: A plurality of samples can be analyzed sequentially in any desired order by intruding the samples into an automatic sampler, the automatic sampler including a plurality of sample ports connected to a holder, a connector, a valve, and a seal. The connector if each sample holder is attached to the valve by a transfer line, and each sample port is connected to a common manifold. A vacuum pump is activated to volatilize the samples sequentially through the common manifold to a vacuum distiller. The order of the samples volatilized is controlled by a microprocessor. Once the sample has been volatilized, the vapors are condensed and sent to an analytical device.

Abstract: A control unit controls a vehicle having a body to allow its user to step on, a power generator arranged to generate power that drives the body, and a load sensor unit arranged to output a load value representing a load that has been applied to the body. The control unit preferably includes a first memory arranged to store a load threshold value, a second memory arranged to store a plurality of data, which respectively correspond to different types of control processing to control the power generator, and a processor arranged to change to a type of control processing among the different types of control processing according to a result of a comparison between the load value and the load threshold value. The processor controls the power generator based on one of the plurality of data corresponding to the type of control processing.

Abstract: An improved motor mount adjustably tensions the chain in a chain and sprocket driven vehicle. The vehicle has a frame, at least one driven wheel rotating from a wheel rotation point on the frame, a driven sprocket driving the driven wheel. A motor is mounted to the frame and has a driving sprocket at a motor sprocket rotation point on the motor. The driving sprocket is disposed in a plane including the driven sprocket, and powers a chain. An improved mount for mounting the motor from the frame relative to the driven sprocket includes a motor mount for fastening to the engine for disposing the driving sprocket from the engine overlying the driven sprocket powering the driven wheel. A motor mount pivot is provided on the motor mount for pivoting the driving sprocket along the plane including the chain and driven sprocket. A keeper slot is configured within the motor mount, the keeper slot being coaxial about the pivot to enable a keeper to slide relative to the keeper slot during pivot of the motor mount.

Abstract: An electric vehicle includes a rear frame, a rear axle fastened with the rear frame, a rear wheel mounted on the rear axle, and a driving mechanism mounted on the rear frame to drive both ends of the rear axle. The driving mechanism has a first motor for driving one end of the rear axle in conjunction with a first driven member and a first transmission member, and a second motor for driving the other end of the rear axle in conjunction with a second driven member and a second transmission member.

Abstract: A motor powered scooter for supporting a standing rider has an improved torsion acting shock absorbing mount for the cantilevered shock absorbing support of at least one of the scooter wheels from the frame. At least one torsion acting shock absorber is utilized. In a preferred embodiment, the torsion acting shock absorber includes a square sectioned metal tube, a correspondingly square sectioned metal shaft, and confined compressible rubber rods acting there between. The torsion acting shock absorber is attached at right angles to the main structural tube and protrudes at an end to one side of the main structural tube. A cantilevered wheel support is mounted offset from the main structural tube at the end of the shock absorber remote from the main structural tube. A shock absorbing suspension is disclosed for both the front steered wheel and the rear driven wheel.

Abstract: The invention relates to a gliding board for sports activities on water, snow, sand, lawn and the like, comprising a body resembling a board, which is equipped with a drive motor, wherein a self-supporting tank for the drive motor covering a large surface of the structure of the board body is integrated in the front part of the board body and wherein the drive motor is movably arranged in and integrated into the back part of the body of the board to change the moving direction of the gliding board.

Abstract: A folding and portable electric scooter assembled from structural members including a body member, a cover member, a seat frame and handles. When the electric scooter is not in use, a user needs only employ three simple actions to facilitate rapid folding away of a portable electric scooter, namely to fold down handles into the cover member, and fold away the cover member and the seat frame into the body member, whereupon, the user can pull a pull rod configured atop the cover member to easily pull along the electric scooter by means of auxiliary wheels connected to the body member, similar to the pulling of a baggage.

Abstract: An occupant propelled device having at least one hydraulic cylinder, a platform and a housing. The at least one hydraulic cylinder has at least two chambers in fluid communication. The platform is attachable to the at least one hydraulic cylinder, such that upon movement of the platform a hydraulic fluid is displaced from one chamber to the other chamber. The housing is attachable to the platform at a pivot point and has at least one axle adapted to receive at least one wheel.

Abstract: A foldable electric motorcycle structure includes primarily a body, a front and rear frames, and a cap, wherein the cap is located at a front part of the front frame, a seat is located at a top edge of the rear frame, and latching mechanisms are located respectively at the front and rear frames, such that the front and rear frames can be unfolded into a riding condition, and a shielding effect can be constituted by the cap during riding. Whereas a box is formed for carrying upon folding the front and rear frames, which enables pulling in walk by the means of auxiliary wheels at two sides of the rear frame and a pulling bar at a front edge of the body, thereby causing more convenience in using an electric motorcycle.

Abstract: A rotary feedback mechanism includes a first set of electrically conductive pads mounted to a first member and a wiper mounted to a second member. As the first and second members rotate relative to one another, the wiper sequentially contacts one or more pads of the first set of pads and provides an electrical signal to the contacted pad or pads. The electrical signal is communicated via the pad or pads to a controller, providing the controller with an indication of the angular position of the first member relative to the second member.

Abstract: A transportation vehicle for transporting an individual over ground having a surface that may be irregular. The vehicle has a support platform for supporting the subject and the support platform is coupled to a ground-contacting module at a pivot. While the ground-contacting module may be statically stable, balance of the support platform with respect to the ground-contacting module is maintained by motion of the ground-contacting module in response to leaning of the support platform. A motorized drive coupled to the ground-contacting module causes locomotion of the vehicle and the subject therewith over the surface, while a control loop, in which the motorized drive is included, dynamically enhances stability in the fore-aft plane by operation of the motorized drive in connection with the ground-contacting module. In the event of failure of the control loop, the pivot connection of the support platform to the ground-contacting module may be locked, thereby ensuring stability of the static assembly.

Abstract: A motorized skateboard or skateboard-like vehicle including a deck upon which the user can stand, fore and aft skateboard-like trucks and a drive wheel mounted intermediate the fore and aft trucks. A suspension allows a range of travel above the drive wheel relative to the deck. In one aspect, a biasing means biases the drive wheel away from the deck.

Abstract: A skateboard includes a board member, a front roller, a rear roller, a pair of left and right intermediate rollers disposed between the front and rear rollers, and a driving unit for driving the left and right intermediate rollers. A control unit is operable among a first mode, in which the driving unit is activated to drive the left and right intermediate rollers, a second mode, in which the driving unit is deactivated, a third mode, in which the driving unit is activated to drive one of the left and right intermediate rollers, and a fourth mode, in which the driving unit is activated to drive the other one of the left and right intermediate rollers.

Abstract: A steerable wheeled sport conveyance is disclosed employing a unique diamond shaped footprint especially adapted for riding at relatively high speeds over various types of terrain. A first set of singular in-line steering wheels are rotataby mounted on the opposing ends of an elongated frame in a manner that also allows one or both of them to pivot on a vertical axis, and a second set of parallel wheels are mounted in an opposing manner across the longitudinal tilt axis of the conveyance. The opposing parallel wheels are attached to corresponding struts, which in turn are independently pivotably mounted near the longitudinal centerline of the frame, and are rotatable in a plane perpendicular to the rotationary plane of the two sets of wheels. Side to side tilting motions of the frame relative to the opposing struts creates vertical displacements between them, thus providing the steering forces that are conveyed and connected to the axels of one or both of the in-line steering wheels.