Abstract: A folding vehicle structure includes a frame having a plurality of members. A first member intersects a second member at a first pivot point. A third member, spaced from the first and second members, intersects a fourth member, which is also spaced from the first and second members, at a second pivot point. The frame includes a first cross-member extending between the first and second intersection points. The frame is collapsible.

Abstract: A foldable scooter has a first frame section hingedly connected to a second frame section and supported by front and rear wheels, and a locking organ for locking the foldable scooter in an unfolded state. Two longitudinally extending, spaced-apart shield elements extend upward from the second frame section. When folded, tops of the first and second frame sections face each other, with the at least one rear wheel between sides defined by the shield elements. The front wheel(s) is (are) steerable, but can be pivoted to a location at least partially between the sides defined by the shield elements.

Abstract: A transport device has a carriage and at least three wheels mounted at a minimum of two axles. One of the axles is a driven axle which carries only a single, centrally mounted, electrically driven wheel. A support unit is configured to accommodate an elongated load, such as a golf bag. A guide component on a control side has a handle area. When the cart is in the operational position, the drive axle at the carriage is on hand at the control side, and the support unit substantially protrudes in the direction of the control side laterally across the drive axle.

Abstract: A frame apparatus for a lightweight rollator has a front frame and a rear frame. The front frame has a base and a handle frame. The base has two connecting tabs, two locking elements and a mounting frame. The handle frame is rotatably connected to the base and has a front wheel and two connecting arms. The connecting arms are formed on and protrude from the handle frame and are pivotally connected to the base between the connecting tabs. The rear frame is connected to the front frame and has a bottom mount, two rear wheels and at least one driving motor. The bottom mount is connected to the mounting frame and has a guiding rod and an engaging shaft. The rear wheels are rotatably connected to the bottom mount. The at least one driving motor is mounted on the bottom mount and is connected to the rear wheels.

Abstract: A motorized vehicle for a rider standing with one foot in front of the other, having at least one front wheel and at least one rear wheel. Load sensing means for sensing the amount of weight on each of the rider's feet are attached to or incorporated into the surfaces upon which the rider stands. An electronic control system detects when the distribution of weight between the rider's front and rear feet deviates from a certain ratio, and directs the motor to accelerate or decelerate in order to correct the change and restore the desired weight ratio. In this way the rider can control the speed of the vehicle by shifting her weight forward or backward. The front wheel is steerable by the rider's front foot. Leg contact surfaces facilitate stability as well as precision and control. Another control method is also described.

Abstract: The foldable electric cart has a frame supported by two rear wheels and a steerable and motor driven front wheel. A seat is mounted on the rear portion of the frame. The seat is supported by left and right rear arms and left and right front arms. The arms pivot the seat between a horizontal use position above the rear wheels and horizontal folded position on a foot support plate. A seat back rest is pivoted relative to the seat between an upright position and a horizontal position. A yoke, holding a hub motor and driven wheel, is fixed to a steering tube journaled in a housing. The housing is pivotable about a transverse horizontal axle. A steering handle base and handle is clamped to the steering tube. The housing pivots from an upright position to a storage position with steering handles to the rear of the folded horizontal seat.

Abstract: In an inverted pendulum type vehicle including a frame (2) incorporated with a propulsion unit (3) and a seat unit (4) provided on the frame, the seat unit (4) is moveable between a deployed position for supporting a rider and a retracted position different from the deployed position. Thereby, an object support unit for supporting an object such as a rider and a cargo can be positioned differently depending on the need so that the convenience and freedom in the use of the vehicle can be enhanced by preventing the object support unit from encumbering the user when not in use.

Abstract: A foldable frame includes first and second upper bars, first and second lower bars, and first and second pin joint pieces. The first and second pin joint pieces are respectively provided with first and second pin joint holes. The first and second lower bars are respectively fixed with the first and second pin joint pieces. The first pin joint piece is pin-jointed with the second pin joint piece through the first pin joint hole, and end surfaces of the first and second pin joint pieces respectively abut against end portions of the second and first lower bars. Two ends of the first upper bar are respectively pin-jointed with an upper end of a front wheel support and at the second pin joint hole of the second pin joint piece. Two ends of the second upper bar are respectively pin-jointed with a rear wheel support and at the second pin joint hole of the first pin joint piece.

Abstract: A motorized wheeled chair assembly facilitates movement by a person while seated on a chair. The assembly includes a frame and a plurality of wheels coupled to the frame. A seat and a motor are coupled to the frame. The motor is operationally coupled to one of the wheels defining a motorized wheel wherein the motor rotates the motorized wheel. A handle is coupled to the frame by an arm having a first end coupled to the handle and a second end removably coupled to the frame. A motor control is coupled to the handle and operationally coupled to the motor.

Abstract: A load and transport cart includes, under a loading platform, a triangular steering plate and, therebelow, a front part of a footboard, wherein the steering plate has a bore, an annular-segment shaped groove, an elongated hole and two opposing first ball heads. The first ball heads each lie in an articulated manner in a respective bearing at one end of a respective steering lever and, at the other end of each lever is a bearing for a respective further ball head of a respective triangular swinging fork on a stub axle of which a respective front wheel is rotatably mounted, wherein each of the swinging forks is rotatably mounted on the loading platform via pivot pins, and wherein the steering axis is located in front of an imaginary axis and can be deflected to the left or right by the steering angle of 45°.

Abstract: A collapsible electric transportation system having a front half base and a back half base pivotally connected together via a hinge bracket, the half bases can fold about the hinge bracket in an extended position wherein the half bases create a platform structure and a storage position wherein top surfaces of the half bases are folded to face each other, motors, a seat panel pivotally attached atop the back half base panel, rear wheels and front wheels, a steering assembly adapted to control directions of the front wheels, a steering mechanism pivotally attached to the front half base which can pivot between at least an extended position at an angle with respect to the front half base and a storage position generally flush with the front half base, and a battery bank operatively connected to a motors.

Abstract: A motorized cart, including: a collapsible frame with a collapsible storage compartment, a front wheel, and two rear wheels rotating about a single axis. The frame has a folding support platform including hingedly connected first and second portions. The first portion rotatably connects at a front of the frame, and the second portion rotatably connects to a rear of the frame. A drive compartment houses a battery, a drive controller, and a motor for driving a rear wheel, and is positioned on the frame to position the battery, the drive controller, and the motor below and forward of the axis in an expanded, upright mode, thereby positioning a cart center of gravity forward of the axis.

Abstract: In an inverted pendulum type vehicle having a lower frame (22) and an upper frame (21) detachably joined to an upper end of the lower frame, the lower and upper frames each defining a hollow interior, a drive unit (3) is incorporated in the lower frame, and a battery unit (10) is received in the upper frame and configured to supply electric power to the drive unit via an electric unit (11) received in a narrow section intermediate between the upper and lower frames. Thereby, the vehicle may be of a compact and small foot print design. In particular, when this structure is applied to a vehicle using a main wheel having a relatively small width, by matching the upper part of the vehicle to have a corresponding small width, the overall profile of the vehicle may have a highly small width. Furthermore, the total weight of the vehicle can be relatively evenly distributed between the upper and lower parts for easy handling and control.

Abstract: In an inverted pendulum type vehicle configured to travel on a ground surface while maintaining an upright posture under an inverted pendulum control, comprising a base frame supporting a propulsion unit, the propulsion unit including a main wheel configured to roll on the ground surface, and a seat unit provided on the base frame for supporting hips of a rider, the seat unit includes a saddle having at least a center located ahead of an axial line extending between a rotational center line of the main wheel and a gravitational center of the inverted pendulum type vehicle. Thereby, even when there is an obstacle on the ground surface behind the vehicle, the main wheel rolling on the ground surface is prevented from coming into contact with the obstacle, and the boarding of the rider on the vehicle is facilitated.

Abstract: Provided is a personal mobility device comprising a frame including two side structures. In one embodiment, main mobility wheels are coupled to ones of the side structures, the main mobility wheels configured to contact a surface upon which the mobility device is designed to move. In this embodiment, the mobility device further includes a knee rest rotatably coupleable to the frame, the knee rest being adjustable from a first substantially-vertical position to a second angled position, and further wherein the main mobility wheels are configured such that a kneeling occupant may propel the personal mobility device using the main mobility wheels.

Abstract: A motorized cart, including: a collapsible frame; a handle and a collapsible storage compartment connected to the frame; and at least three wheels, including a front wheel and two rear wheels disposed at a rear of the frame for rotating about a single axis. The cart also includes a drive compartment housing a battery, a drive controller, and at least one motor electrically connected to the battery and the drive controller for driving at least one of the rear wheels. The drive compartment is positioned on the frame to position the battery, the drive controller, and the motor below and forward of the rear wheel rotation axis when the cart is in an expanded, upright mode, thereby positioning a center of gravity of the cart forward of the rear wheel rotation axis to enhance stability.

Abstract: A foldable seat mounting rack of a foldable motorized vehicle includes a pair of symmetric foldable seat mounting support. Each symmetric foldable seat mounting supports comprises: an upper mounting base, a lower mounting base, a pinion, a locking lever, a main connecting plate, a first and a second auxiliary connecting plates. The main connecting plate is pivoted on both upper and lower mounting bases. The pinion is pivoted at a middle portion on an inner side of the main connecting plate. Side surfaces at one end of the both auxiliary connecting plates are formed with racks engaging with the pinion. The first auxiliary connecting plate is pivoted on the lower mounting base and the second auxiliary connecting plate is pivoted on the upper mounting base. One end of the locking lever is pivoted on the upper end of the main connecting plate, and the other end presses against the pinion.

Abstract: A foldable motorized vehicle includes a frame connecting mechanism and a frame locking mechanism. The frame connecting mechanism comprises: a pair of first slide rails, a pair of second slide rails, a pair of first connecting members, and a pair of second connecting members. The front end portions of the first slide rails are fixedly connected to a front frame, the rear end portion of the second slide rails are fixedly connected to a rear frame. The front end portions of the second slide rails are supported on the rear end portions of the first slide rails, creating a slidable connection between the first slide rails and the second slide rails with the first connecting members and the second connecting members. The frame locking mechanism comprises a handle, a cable tube, a cable, a mounting base, a compression spring, and a stopper.

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: An inverted pendulum type vehicle (1) includes a lower frame incorporated with load sensor having an input portion 60 for receiving an external force and an upper frame (3) provided with a saddle 11 for supporting a load of a rider or a cargo and a grip handle (31) for enabling a user not riding the vehicle to support the vehicle (1), the upper frame being connected to the lower frame via the input portion of the load sensor. Therefore, in the vehicle including the lower frame supporting a propelling unit for the vehicle and the upper frame detachably attached to the lower frame, by using a single force sensor, not only the force acting on a load support portion of the upper frame can be detected in an accurate manner, but also the force acting on the load support portion when the user is transporting the vehicle can be detected.

Abstract: A handlebar folding mechanism for a foldable motorized vehicle comprising: (a) a mounting base, (b) a first connecting member and a second connecting member, each having a connection portion and a locking portion, (c) a first locking lever and a second locking lever, (d) a steering axial rod and (e) a first steering handlebar and a second steering handlebar, each of the steering handlebar having an inside end and outside end, wherein the connection portions of the connecting members are connected to the inside end of the first steering handlebar, the locking portions of the connecting members are pivoted on the mounting base, the locking levers are retractably mounted in the mounting base to control the rotation of the connecting members.

Abstract: A tracked vehicle, particularly a piste grooming vehicle, comprising a chassis frame and at least one sprocket for a track is characterized in that the sprocket has limited movement between a working position—in which the sprocket protrudes beyond the chassis frame—and a transit position in which the sprocket is located at least partially, preferably totally, within the width of the chassis frame.

Abstract: A collapsible bicycle (1) has a frame (2) collapsible in its plane. The frame (2) includes a head tube (3) having a collapsible bicycle front side end (10) in which a front wheel fork (12), which receives a front wheel (13), is mounted. A seat stay (5) has an end (38) receiving a seat tube (39). A lever (6) is articulated at a first articulation point (50) at a collapsible bicycle rear side end (37) of the head tube (3) and at a second articulation point (49) at the end (38) of the seat stay (5) receiving the seat tube (39). The lever (6) is arranged to the collapsible bicycle front side in a riding position of the collapsible bicycle (1). A down tube (4) is articulated at a third articulation point (18) at the collapsible bicycle front side end (10) of the head tube (3) and at a fourth articulation point (24) at an end (38a) of the seat stay (5), opposite the end (38) of the seat tube (39).

Abstract: A foldable seat mounting rack of a foldable motorized vehicle includes a pair of symmetric foldable seat mounting support. Each symmetric foldable seat mounting supports comprises: an upper mounting base, a lower mounting base, a pinion, a locking lever, a main connecting plate, a first and a second auxiliary connecting plates. The main connecting plate is pivoted on both upper and lower mounting bases. The pinion is pivoted at a middle portion on an inner side of the main connecting plate. Side surfaces at one end of the both auxiliary connecting plates are formed with racks engaging with the pinion. The first auxiliary connecting plate is pivoted on the lower mounting base and the second auxiliary connecting plate is pivoted on the upper mounting base. One end of the locking lever is pivoted on the upper end of the main connecting plate, and the other end presses against the pinion.

Abstract: A handlebar folding mechanism for a foldable motorized vehicle comprising: (a) a mounting base, (b) a first connecting member and a second connecting member, each having a connection portion and a locking portion, (c) a first locking lever and a second locking lever, (d) a steering axial rod and (e) a first steering handlebar and a second steering handlebar, each of the steering handlebar having an inside end and outside end, wherein the connection portions of the connecting members are connected to the inside end of the first steering handlebar, the locking portions of the connecting members are pivoted on the mounting base, the locking levers are retractably mounted in the mounting base to control the rotation of the connecting members.

Abstract: A motorized golf bag cart includes a base frame, a lower frame and an upper frame. The base frame has a front wheel rotatable base set at two sides of the front side respectively for installing a front wheel able to spin freely, a battery set at the rear side, a connecting base formed at two sides of the rear side respectively, a motor positioned outwardly next to the connecting base, and two direction-oriented rear wheels connected outwardly with the motor. The lower frame is pivotally connected with the connecting base outwardly, provided with a positioning member located at two sides of the bottom respectively, and a folding joint installed at the top. The upper frame has a lower end connected with the folding joint, a rotatable joint and a handle bar set at the top and having a power switch and a speed controller etc, to direct the cart.

Abstract: A personal mobility device comprising a frame having a front structure, a rear structure, and two side structures. In one embodiment, main mobility wheels are coupled to ones of the side structures, the main mobility wheels configured to contact a surface upon which the mobility device is designed to move. In this embodiment, the mobility device further includes a knee rest rotatably coupled to the front structure, the knee rest being adjustable from a first substantially-vertical position to a second rearwardly and downwardly-angled position.

Abstract: An architecture is presented that provides a portable, motorized cart designed for transporting golf equipment or other large items, as well as provides a transportable vehicle. The motorized cart comprises a base unit with wheels, a seat removably secured to the base unit, and a steering mechanism. Furthermore, power controls are included for controlling the motorized cart. Additionally, the cart comprises a securing device for securing an item to the front of the base unit, wherein the item includes golf equipment, yard equipment, shopping bags, etc. Furthermore, the wheels, the foldable seat and the steering mechanism are detachable from the base unit, allowing the motorized cart to be disassembled and stored in a trunk of a car or other vehicle.

Abstract: A slow speed, driver's stand-up only, three-wheels, portable, leverless, extremely lightweight, two-part personal mobility vehicle. A front major part, wheel drive assembly, comprising of an upper sub-part, comprising of levers free steering handle mounted on steering column. A lower sub-part comprises of an extended backwards supporting leg, a control box, an electric chain motor assembly, a fork assembly, and front wheel assembly. A two-part hinge assembly below the steering column, enabling folding steering column, and, if necessary, removal. A second major part, a rear assembly chassis, comprising of a riders flat platform surface mounted on a rectangular metal frame, partially mounted on a rear axle, which is connected to both rear wheels. A rear hydraulic foot brake system installed in both rear wheels, whereby a foot brake (pedal) lever formed on top platform surface. An alternative, none-emergency hand brake lever, may be fastened on the steering handle.

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: The invention is directed to a foldable electric bicycle with power assist having a front portion attached to a rear portion via a central pivot post. The front portion maintains a steering column, handle bar system and a front wheel assembly having a front wheel and an electric power train. The rear portion includes a rear connecting arm to maintain the rear wheel. The central pivot post includes a first end that connects with the front portion and a second end which connects with the rear portion. A peddle assembly connects below the central pivot post and communicates with the rear wheel through a drive chain. A rechargeable battery capable of providing electricity to the electric power train is shaped to fit within a cavity and is located within the central pivot post. The rechargeable battery is positioned proximate the user so as to vertically align with the user's girth.

Abstract: A vehicle includes a deck, an aft running gear attached to the deck, a steering assembly, a flexible joint attaching the steering assembly to the deck, such that the steering assembly is pivotable about the flexible joint with respect to the deck between a rider-standing mode and a rider-sitting mode, and a brake assembly attached to the deck.

Abstract: A powered vehicle has a rear frame assembly and a front frame assembly that are pivotally attached to one another, and can be pivoted from a normal fully-extended operating position to a folded position in which the frame assemblies are positioned substantially adjacent to one another, effectively reducing overall vehicle length to about half. One or more latch members lock the front and rear frame assemblies in the fully-extended, normal operating position, and they may be used to lock the frame assemblies in the folded position. The seat support structure may be integrated with the front and rear frame assemblies such that pivoting the frame assemblies toward the folded position collapses the seat support. The steering tiller may also be collapsible toward the front frame assembly. The rear wheels may be mounted on a transaxle that is pivotally mounted on the rear frame assembly. An extendable handle may be provided to assist in the folding operation and to tow the collapsed vehicle on its anti-tip rollers.

Abstract: A powered vehicle has a rear frame assembly and a front frame assembly that are pivotally attached to one another, and can be pivoted from a normal fully-extended operating position to a folded position in which the frame assemblies are positioned substantially adjacent to one another, effectively reducing overall vehicle length to about half. One or more latch members lock the front and rear frame assemblies in the fully-extended, normal operating position, and they may be used to lock the frame assemblies in the folded position. The seat support structure may be integrated with the front and rear frame assemblies such that pivoting the frame assemblies toward the folded position collapses the seat support. The steering tiller may also be collapsible toward the front frame assembly. The rear wheels may be mounted on a transaxle that is pivotally mounted on the rear frame assembly. An extendable handle may be provided to assist in the folding operation and to tow the collapsed vehicle on its anti-tip rollers.

Abstract: A walk-substituting vehicle includes a foldable chassis, a steering mechanism, a seat assembly, and a fixing device, which is movable to a fastening portion to prevent the chassis from folding from an in-use position; the chassis includes a main part and a footrest part; the vehicle can be moved to a folded configuration, wherein the chassis is folded, and the steering mechanism and the seat assembly lie on the chassis; the fixing device includes a pulling member pivoted on the footrest part, a joining member pivoted on the pulling member, and a pushing member joined on and slideable along a receiving recessed portion of the pulling member; when the fixing device is in the fastening position, the joining member will be hooked over the main part of the chassis, and the pushing member engaged with the joining member to prevent the joining member from pivoting relative to the pulling member.

Abstract: A personal mobility device comprising an open frame having a front structure, a rear structure, and a side structure. The side structure has an upper rail and a lower rail coupleable to the front structure and the rear structure. In one embodiment, a main mobility wheel is coupled to the side structure, and a knee rest is rotatably coupled to the front structure. The knee rest is adjustable from a first substantially-vertical position coupled to the front structure to a second rearwardly and downwardly-angled position from the front structure.

Abstract: A motorized foldable scooter has a frame, at least a front and rear wheel connected to the frame, a seat supported by the frame, a steering arrangement for the front wheel, and an electric motor, driving the rear wheel through a transmission. The frame has at least front and rear frame parts movably connected through a substantially vertical rotary axis to move the frame parts between an extended position of use and a collapsed resting position. The steering arrangement and the seat, and/or the front and rear frame parts are shaped such with respect to each other and the rotary axis that they at least partly nest in lateral direction of the scooter when the frame parts are in the collapsed resting position.

Abstract: A forklift truck (10) comprising a truck body, a fork mechanism at one end of the body, and at least one wheel (18) at an opposite end of the body, said at least one wheel (18) being mounted on the body for translational movement relative to the body between a working position and a storage position.

Abstract: A vehicle is disclosed. The vehicle may include a plurality of attachment devices to couple the vehicle to a harness. The vehicle may include a moveable roll cage which is moveable from a raised position to a lowered position.

Abstract: The golf cart has a main frame supported by driven rear wheels. A front axle with steered front wheels is pivotally attached to the main frame. A rear seat is pivotally attached to the main frame. The rear seat is pivotable to positions in which a physically challenged golfer can swing a club while supported by the rear seat and hit a ball on the left side, the right side or to the rear of the cart. A front seat is on a front seat post clamped to the frame. A tiller is pivotally attached to the front post. A drive sprocket is fixed to the tiller. A driven sprocket is journaled on the post. A roller chain is trained around the drive sprocket and the driven sprocket. A tie rod control arm is fixed to the driven sprocket and connected to the steered front wheels by tie rods.

Abstract: A walk-substituting vehicle includes a foldable chassis, a steering mechanism, a seat assembly, and a fixing device, which is movable to a fastening portion to prevent the chassis from folding from an in-use position; the chassis includes a main part and a footrest part; the vehicle can be moved to a folded configuration, wherein the chassis is folded, and the steering mechanism and the seat assembly lie on the chassis; the fixing device includes a pulling member pivoted on the footrest part, a joining member pivoted on the pulling member, and a pushing member joined on and slideable along a receiving recessed portion of the pulling member; when the fixing device is in the fastening position, the joining member will be hooked over the main part of the chassis, and the pushing member engaged with the joining member to prevent the joining member from pivoting relative to the pulling member.

Abstract: An electric scooter (1) comprises a collapsible chassis (2), a pair of driven wheels (4) at the front of the chassis (2) and a pair of casters (5) at the rear. An upright column (6) is supported on the chassis (2) and a foldable seat (3) is supported on the column (6). The chassis (2) comprises a pair of cross-members that make up an X-frame, such that the chassis (2) may readily be folded. The back of the seat (3) may fold down onto the base of the seat and they may together be pivoted downwardly and rotated through 90°, so that they fall within the plan area of the folded chassis. The height of the seat (3) on the column (6) is adjustable, to facilitate transfer of a user to and from the seat (3). An electric wheelchair is also disclosed.

Abstract: A person carrying vehicle includes a main frame, a seat pivoted on the main frame, a front frame, an articulate supporting member connecting the main frame and the front frame, and a telescopic steering mechanism pivoted on the front frame; by means of pivoting supporting rods of the seat downwards, folding the articulate supporting member as well as shorting and pivoting the steering mechanism, the vehicle can be reduced into a not-in-use configuration, wherein the supporting rods and a seat pad are received in a hollow holding portion of the main frame, a footrest board of the front frame hidden under the main frame, and a tube part of the steering mechanism is received in grooves on the seat; the vehicle has a lift handle at a front, and auxiliary casters at a rear, which are used for the vehicle to be moved in a sloping position on the floor.

Abstract: An electric wheelchair comprises: a chair assembly and a wheel assembly. The wheel assembly is mounted at the bottom of the chair assembly. The chair assembly includes a seat, a first frame, a second frame, and a third frame, which are pivotally connected to form a four-bar linkage mechanism, so that the seat and the respective frames of the electric wheelchair will be folded synchronously in the same direction when the electric wheelchair is being folded, and the folding direction of the chair assembly is vertical to the axis of the drive wheels of the wheel assembly, thus allowing the disabled user to fold the chair assembly and to disassemble the wheel assembly quickly and effortlessly.

Abstract: An improved wheeled vehicle includes a platform adapted and constructed to support an operator of the vehicle. A plurality of wheels support the vehicle for movement on a surface, the plurality of wheels including at least one front wheel adapted and constructed to steer the vehicle, and at least one rear wheel adapted to be driven to impart motion to the vehicle. A handlebar assembly is connected to at least one of the wheels of the vehicle. The handlebar assembly provides directional control of the vehicle, and extends toward the rear of the platform. A motorized drive mechanism is connected to at least one of the wheels, whereby actuation of the drive mechanism causes the vehicle to move along a surface. A control mechanism actuated by the foot of a user includes at least one pedal, and is used to accelerate and decelerate the vehicle.

Abstract: A vehicular frame assembly includes a mainframe, a support bracket, and a subframe. The support bracket is coupled with the mainframe. The subframe is coupled with the support bracket such that the subframe is stationary with respect to the mainframe. The support bracket is configured for pivotal attachment to a suspension element. Vehicles including a frame assembly having a support bracket are also provided.

Abstract: A leg-wheeled traveling mechanism is provided with a seat portion, two follow-up legs, each having an end portion that is freely rotatably connected to the seat portion, with a distance between the end portion and a tip portion having a foot-rest portion being retractable, two or more support legs, each having an end portion that is freely rotatably connected to the seat portion, with a distance between the end portion and a tip portion having a wheel portion being retractable, a foot-position measuring unit that measures relative positional changes of the foot-rest portions and foot portions of a rider, and a control device that controls operations of the follow-up legs and the support legs, based upon the relative positional changes measured by the foot-position measuring unit so as to allow the foot-rest portions to move virtually in the same directions as those of the foot portions.

Abstract: Wheeled riding vehicles, including tricycles, with extremely thin stowed profiles are provided, which in one embodiment, include movable, collapsible tires/wheel axle assemblies, as well as folding frame parts and a unique handle that is removable and stowable within the vehicle frame when not used. The riding vehicle hangs totally flat on the wall, or fits in car trunks easily. One version is pedal powered, and a second embodiment provides for an integrated propulsion linkage providing for battery or motor power to the rear most wheels when they are moved into their operative position. The rear tire wheel assemblies also may be stowed and folded compactly inside a rear storage compartment with a lid.

Abstract: A folding electric scooter comprises a chassis. The front end of the chassis is disposed with a front wheel and a handlebar used to control the direction of the front wheel. The handlebar is a folding structure. The rear end of the chassis is pivotally coupled with a rear rack. The rear rack is disposed with a rear wheel, a motor and a battery. The motor and the battery are used to offer the power to the rear wheel. In addition, the rear rack is disposed with a folding four-bar linkage, which forms the seat. By such arrangements, when the folding electric scooter is not in use, the four-bar linkage can be folded to fold the seat, and the handlebar can be synchronously folded, thus minimizing the whole volume to facilitate the transportation and the storage.

Abstract: An off-road vehicle includes a frame and four wheels that support the frame. An engine powers the wheels. The engine is mounted on the frame. The frame includes multiple frame members that surround the engine. One of the frame members disposed behind the engine is detachably affixed to the rest of the frame members. The frame members are divided into first and second groups. The first and second groups are offset fore to aft relative to each other and overlap with each other in a rear section of the first group and in a front section of the second group. The rear section of the first group defines a bent portion coupled with the second group. The front section of the second group defines a bent portion coupled with the first group.