Abstract: A skateboard that includes a board (12) with an upper part (30) and a lower part (34), wheel supports (14), as well as elements (28) for orientation of the wheel supports (14), whereby the elements (28) for orientation include a pin (52) whose tip (54) is housed in a recess so as to create a connection that is essentially equivalent to a ball joint; the skateboard is characterized in that in its lower part (34), it includes receiving elements (58) that are manufactured with the board (12) and are able to accommodate each wheel support (14).

Abstract: Devices and methods are disclosed which relate to the transportation of loads. A strong and flexible platform has a plurality of ball casters attached to its underside to carry a load by dragging the platform along the ground. The plurality of ball casters on the bottom allow it roll while the flexible platform allows it to match the contour of the ground surface. The platform is outfitted with a removable rigid frame, handles, and grommets. A wagon attachment can be attached on top of the platform to transport loose loads such as leaves and other yard waste, and a rigid tub can be inserted into the wagon attachment for denser loads such as soil and sand. The platform can be pulled by hand, animal or vehicle.

Abstract: A child's wagon having a generally flat floor surrounded by upstanding rear and sidewalls defining central triangularly-shaped seating positions having three corners and in which three children may sit while directly facing each other.

Abstract: A scooter device propelled by side to side movement of a user that includes a frame structure through which at least a front wheel is coupled to two direction biased rear wheels. The biased direction wheels include tilted caster and spring biased caster arrangements. The frame structure may have a rear support member or structure that extends between the two rear wheels. A user support platform of various configurations may be provided with the rear support member or structure. The scooter may have a three wheel configuration with the front wheel being larger than the rear two wheels.

Abstract: A children's vehicle includes a body and a cross member attached to the body. A tongue assembly features a leading portion, a central portion and a trailing portion, with the central portion pivotably connected to the cross member. A handle is pivotally attached to the leading portion of the tongue assembly. A tie rod is pivotally attached to the trailing portion of the tongue assembly. A pair of axle spindles are pivotally attached one each to opposite ends of the cross member. A pair of wheels are rotatably mounted one each on the pair of axle spindles. A pair of generally S-shaped torque arms are connected one each to the axle spindles and pivotally connected one each to opposite ends of the tie rod.

Abstract: A folding wagon has a folding frame with a stowed position and an open position. The folding frame comprises a pair of front and rear vertical support. The folding frame further comprises a pair of front supplemental links and a pair of rear supplemental links. A plurality of flatbed supports form a central flatbed support joint in the middle of the wagon. The central flatbed support joint folds upward when the folding frame is being configured into stowed position, and the plurality of flatbed supports are pivotally connected to the pair of front vertical supports and the pair of rear vertical supports. Wheels attach to the folding frame.

Abstract: An improved scooter includes a frame, a front wheel, a rear wheel, a stem, a handle, left and right pedal devices, and left and right first driving devices and second driving device. The left and right first driving devices are driven by the left and right pedal devices respectively for solely or jointly driving the second driving devices, and the driven second driving devices can drive the rear wheel to rotate and roll forward, such that the front and rear wheels can jointly drive the scooter to move forward. Users can pedal the pedal device(s) by one leg or both legs alternately to operate the scooter. The scooter not only complies with the simple, smooth, power-saving, stable and safe ergonomic design, but also comes with a unique operation and driving mode and achieves the effects of providing a recreational sport with fun as well as a transportation tool.

Abstract: An application for a device for human conveyance includes a front wheel and a rear wheel. The rear wheel interfaced to a sprocket through a ratchet drive system which allows forward rotation of the rear wheel in response to forward rotation of the sprocket and allows free backward rotation of the sprocket. A frame interfaces the front wheel to the rear wheel keeping the front wheel at a constant distance from the rear wheel. The front and rear wheels are rotatably interfaced to the frame. A front end of an arc-shaped spring is affixed to the frame in proximity to the front wheel and a rear end of the arc-shaped spring has a sprocket gear interfaced to the sprocket whereas depression of the arc-shaped spring pushes the rear-end of the arc-shaped spring in a rearward direction with respect to the rear wheel and the sprocket gear turns the sprocket in a forward rotational direction.

Abstract: A scooter includes a main frame, a head tube mounted on the main frame, two side plates extending from the head tube and each having a first locking slot and a second locking slot, a handlebar stem mounted on the head tube, a mounting sleeve mounted on the handlebar stem, a locking tube movably mounted on the mounting sleeve and having two locking blocks each locked in the first locking slot or the second locking slot of the respective side plate, and a rotation tube mounted on the mounting sleeve and abutting the locking tube. Thus, the rotation tube can be rotated to move the locking tube relative to the head tube so as to lock or unlock the handlebar stem so that the user only needs to rotate the rotation tube to expand and collapse the handlebar stem easily and quickly.

Abstract: A scooter driving structure includes a step member pivotally coupled to a scooter platform and swingable up and down, a first driving module installed at a position corresponding to the step member and comprising a driving rod, a guide wheel, a first driving wheel, a first driving belt and a position restoring element, and at least one second driving module installed between a pivotal axle of the first driving wheel and an axle center of a rear wheel and comprising a second driving wheel, a second driven wheel and a second driving belt. The step member is pedaled to move the driving rod of the first driving module and drive the first driving belt to rotate the first driving wheel, and the coaxial second driving wheel of the second driving module drives the second driven wheel and the rear wheel to rotate through the second driving belt, so as to achieve a dual drive effect of driving a scooter to move.

Abstract: A person rides the Tri-Axial Control Device standing on pedal assemblies. The pedal assemblies are attached to a control axial member thus forming the Tri-Axial Control Device. The control axial member on the vertical stick, can rotate fore and aft, and turns the front skis and/or wheels. Changing the angle of the vertical stick side-to-side changes the pedal angle. If the rider falls forward the front stick can rotate away. Various torsion controls rod assemblies and pedal assemblies can be utilized to create a unique tri axial device. The device can be folded, is lightweight and can be manufactured without welding. No special equipment or training is required to operate the device. In addition to its entertainment uses, the mounting device for portable electronics can also be used for added safety by adding a global positioning system or other electronic signal device, allowing safety personnel to locate the rider.

Abstract: A non-motorized scooter is provided with a base and front and rear wheels mounted on the base. A seat is mounted on the base for folding between an upright riding position and a folded storage position. Handlebars are pivotally mounted on the base for movement between an upright riding position and a folded storage position. The seat and handlebars fold toward one another in a side-by-side position for storage. Outrigger wheels on the rear of the scooter maintain the scooter in an upright position without touching by a person. The height of the seat and handlebars can be adjusted for both the riding position and the storage position, such that the scooter can be used as a crutch or cane when the seat and handlebars are folded downwardly. Optional accessories may be provided for the scooter, including a light, a water bottle holder, and a storage basket.

Abstract: A vehicle for transporting a person, in particular a disabled person, has a plurality of skis or other ground engaging elements for movement with respect to the ground. A support structure is provided with a seat, a support for the limbs of the vehicle user, a mechanism for steering the vehicle. A companion to the vehicle user is supported separate from the seat and from the skis, and connection element or base to which the support structure and at least one of the ground engaging elements are attached in an oscillating manner to take inclined positions with respect to the base connecting element.

Abstract: The present invention provides a scooter with driving mechanism comprising a scooter assembly and at least a driving mechanism, wherein the scooter assembly has a treadle and a rear wheel; the driving mechanism comprises a reset device and a transmission device, which has an irreversible transmission unit and a passively driven gear, wherein the passively driven gear is driven by the driving gear in meshed manner to drive the irreversible transmission unit in relay way, the irreversible transmission unit, which is connected to the rear wheel, is served to drive the rear wheel to rotate in single direction. Thus, by means of the treading and releasing actions with the treadle, the scooter can be driven smoothly with benefits in not only the risk of tumbling down accident being avoided but also the effects in energy-saving and environmental protection being achieved.

Abstract: A skateboard may include a pair of foot support boards connected by a torsion bar connecting element, a torsion bar cover tube mounted to the foot support boards and surrounding at least a portion of the torsion bar connecting element and an outer tube mounted for rotation around the torsion bar cover tube in response to contact with an obstacle. One or more bushings supporting the outer tube on the torsion bar cover for rotation. The skate board may include a tube mounted for rotation on a connecting element between the foot support areas. A method of skateboarding may include providing a skateboard having a longitudinal axis running between a pair of foot support areas and providing a tube mounted for rotation about the longitudinal axis between the foot support areas in response to contact with an obstacle.

Abstract: A scooter device propelled by side to side movement of a user that includes a frame structure through which at least a front wheel is coupled to two direction biased rear wheels. The frame structure may have a foot placement platform that extends laterally between the two rear wheels. The platform may extend over half of the distance between the rear wheels and/or be substantially continuous for that distance. Various platform embodiments and frame structures, including rigid and flexible, are disclosed, among other aspects.

Abstract: A speed restrictor for a gravity driven vehicle is provided. The speed restrictor is configured to limit the speed of the gravity driven vehicle by restricting rotation of a wheel axle while the gravity driven vehicle descends down a mountain track.

Abstract: A new skating device having a handle which is held by a skater. Wheels, ice blades, or other means of conveyance are placed in front, behind and on both sides of the handle or extend to the front, behind and on both sides of the handle, thus holding the device upright as it conveys the skater across a skating surface. Two or more of the wheels or ice blades are directionally fixed, allowing only forwards or backwards movement. The device allows a skater to skate with hands down against a skating surface. Other skate devices such as inline skates can support the skater's lower body allowing the skater to skate in a prone or crab position. Optional brakes, fenders, hand guards, grind plates and padding for the handle can be added to facilitate the activity which the device will be used for.

Abstract: A baby stroller system is provided including a baby stroller and a ride along board attached thereto for supporting a rider (e.g., a child) while the stroller is pushed. The ride along board may include a platform for the rider to stand upon and at least one wheel for supporting the platform. Additionally, the ride along board is positioned asymmetrically relative to the stroller, e.g., in-line with one of the rear wheel or laterally outside of the stroller wheel base. Further, the platform may be positioned laterally outside of the handlebars, thereby providing more room for the rider (e.g., not having to stand or squeeze between the handlebars) and moving the ride along board and rider away from the moving space of a user pushing the stroller. The ride along board further includes at least three wheels defining a ride along board wheel base, where a center of mass of the ride along board is within the wheel base. The ride along board may be attached to opposing ends of an axle of one of the rear wheels.

Abstract: A multiple tube, multiple lights effects neon or fluorescent lighting system for a skateboard produces a variety of controlled light effects and combinations. A pair of high strength colored protective transparent elongated casings house the light tubes. The casings are removably attached in a highly visible position on the side edges of a skateboard or under the skateboard adjacent to the side edges. The casings are secured by industrial strength mating hook and loop fasteners.

Abstract: In order to temporarily close off the open end or ends of a supermarket cage to reduce risk of products falling out, a supermarket cage protection device is proposed which comprises a roller (16) mounted between respective brackets (30) which are adapted to be fitted removably to opposing upper regions of opposing side frames (22) of a supermarket cage (20). A sheet of flexible material (12) is mounted upon and extensible from the roller (16) so as to cover, in use, an open end of the supermarket cage. Means for releasably securing the sheet (12) when so extended may comprise a channel element (14) providing a hook to engage a bottom cage element and optionally a grip portion (45) to facilitate its release. In its simplest form such a device is, in effect, a roller bund adapted for fitting to a delivery cage.

Abstract: A scooter device propelled by side to side movement of a user that includes a frame structure through which at least a front wheel is coupled to two direction biased rear wheels. The frame structure may have a foot placement platform that extends laterally between the two rear wheels. The platform may extend over half of the distance between the rear wheels and/or be substantially continuous for that distance. Various platform embodiments and frame structures, including rigid and flexible, are disclosed, among other aspects.

Abstract: Improved blow-molded wheels, methods for producing the same, and children's ride-on vehicles including the same are disclosed. The blow-molded wheels may include a blow-molded body that has a tread surface, first and second sidewalls and an axis. The body may be configured to rotate about the axis. The tread surface may extend circumferentially around the body and may extend between the first and second sidewalls. A first region of the tread surface may be disposed between the first sidewall and a part line of the blow-molded body. A second region of the tread surface may be disposed between the first region and the part line. A first radial distance from the axis to the first region may exceed a second radial distance from the axis to the second region by at least a first predetermined threshold.

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: A method of loading a cart into an enclosure, according to various embodiments of the invention, comprises the steps of: (A) providing a cart having a first end and a second end, the cart comprising at least one swiveled wheel adjacent the first end, and at least two non-swiveled wheels adjacent the second end, the swiveled and non-swiveled wheels being adapted to facilitate the rolling movement of the cart over a surface; (B) positioning the at least two non-swiveled wheels on a wheeled platform so that the non-swiveled wheels are supported by the wheeled platform; and (C) while the non-swiveled wheels are supported by the wheeled platform, and while the at least one swiveled wheel is disposed on a support surface adjacent an interior portion of the enclosure, using the wheeled platform and the at least one swiveled wheel to roll the cart into the interior portion of the enclosure.

Abstract: A walker device for assisting an individual with mobility which is temporarily convertible to a wheeled transportation chair, includes a frame structure having two front legs and two rear legs, each of the legs having a leg extension adjustably attached thereto and supported on a rotatable wheel. A seat is attached to the frame structure. A backrest is selectively disposed in a front position for a rearward seating condition or in a rear position for a forward seating condition. A footrest assembly is optionally attached to the frame structure and is adapted to pivot about first and second pivoting axes parallel to each other, between a folded position and an unfolded position optionally with different height levels.

Abstract: Brake assemblies, and scooters and skateboards incorporating the same. The brake assemblies include an actuator that is positioned rearward of the body of the scooter or skateboard and includes a brake member that is selectively pivoted or otherwise moved into braking contact with a rear wheel assembly responsive to rider-applied braking inputs to the actuator. In some embodiments, the rear wheel assembly includes a truck with a chassis that is pivotally coupled to the body and to which the rear wheels are rotatably mounted. In some embodiments, the brake member is adapted to apply braking forces to a ground-contacting surface of at least one of the rear wheels responsive to braking inputs applied by a rider to the actuator. In some embodiments, the brake assembly is configured to maintain its orientation relative to the rear wheel regardless of the pivotal orientation of the body relative to the chassis.

Abstract: A scooter device having a flexible, tiltable frame structure and biased direction rear wheels. The scooter may be of a type that achieves forward propelled by side-to-side movement of a user. The frame structure may include a flexible member or members and/or incorporate other flexible or moveable components to achieve desired performance. The frame structure and steering mechanism may be moveable into a more compact form for storage or transport. A brake arrangement and other features are also disclosed.

Abstract: A swing structure for a kick scooter includes a center tube, an axle pipe, a first bushing pad, a second bushing pad and a cap. The center tube comprises a pair of ring plates spaced from each other and a protuberance. The axle pipe is provided with a bracket. The first bushing pad is disposed on the bracket and located between the two ring plates of the center tube. The first bushing pad has a restricting slot for insertion of the protuberance of the center tube. The second bushing pad is coupled to the first bushing pad. The cap covers the second bushing pad and is secured to the bracket by means of fasteners.

Abstract: A patient support platform provides a solution for healthcare facilities and nursing staff to address patient and staff safety, patient mobility, patient comfort, the availability of patient information, monitoring drugs and therapy provided, and controlling health care expenses. The patient support platform preferably includes a transmission system that allows the patient and/or medical staff member to choose a stop, walk or roll mode. The transmission system preferably includes a drag wheel for applying a braking force in response to a voltage generated by a braking motor. The platform supports a plurality of devices that may be attached or associated with a patient throughout their stay at a healthcare facility. The support platform also preferably includes a mechanism for releasably attaching the support platform to another structure, such as a bed. Embodiments of the present invention include multiple non-medical uses of the platform.

Abstract: A three wheeled scooter comprises a chassis having forward and aft ends with a front wheel non-pivotally mounted to the forward end and a pair of rear wheels coaxially mounted to the aft end. The chassis defines a longitudinal axis and includes a support assembly and a handle assembly extending upwardly from the support assembly. The rear wheels are configured to be angularly yawable relative to the longitudinal axis between a neutral position and a yawed position. Steering of the scooter is thereby effectuated by angular yawing of the rear wheels relative to the longitudinal axis such as by asymmetric loading of one of opposing sides of the support assembly.

Abstract: A vehicle including a frame; a rider support platform supported by the frame; a pair of first wheel units pivotably supported by the frame; a pair of second wheel units supported by the frame; first and second handlebars pivotably supported by the frame; a first linkage connecting the first handlebar to one of the first wheel units so that pivotable movement of the first handlebar causes wheel of the one of the first wheel units to turn relatively to the frame; a second linkage connecting the second handlebar to the other of the first wheel units so that pivotable movement of the second handlebar causes wheel of the other of the first wheel units to turn relatively to the frame; and a movement coordinator which connects the first and second linkages to each other so that pivotable movement of one or both of the first and second handlebars in one direction causes the wheels of both first wheel units to turn in the same direction.

Abstract: A walker device for assisting an individual with mobility which is temporarily convertible to a wheeled transportation chair, includes a frame structure having two front legs and two rear legs supported or rotatable wheels. A seat is attached to the frame structure. A backrest is selectively disposed in a front position for a rearward seating condition or in a rear position for a forward seating condition. A footrest assembly is optionally attached to the frame structure and is adapted to pivot about first and second pivoting axes parallel to each other, between a folded position and an unfolded position.

Abstract: A hybrid skateboard deck combines at least one layer of bamboo with one or more layers of any suitable wood to form a multi-ply deck. A hybrid skateboard deck combines at least one layer of bamboo sandwiched between at least two layers of conventional hardwood such as maple. The addition of a bamboo layer in the core of the laminated deck provides superior strength relative to conventional plywood decks. The bamboo core laminate also provides superior feedback to a rider as well as uniform stiffness.

Abstract: A seat delivery pallet including a platform including: end members, side members, and a center member extending between the side members; a seat support member positioned between and moveably attached one end member and the center member; a seat support member positioned between and moveably attached to the side members; and a first foot locking device slidably attached to one seat support member and another foot locking device slidably attached to another seat support member. A method of delivering a seat having feet with enlarged locking studs is also disclosed.

Abstract: A caster assembly includes a wheel bracket, a wheel attached to the wheel bracket, a shaft about which the wheel bracket is free to rotate, and a cam assembly. The caster assembly is attached to the underside of a caster board, where the shaft is fixed perpendicular to the board, and the cam assembly comprises a cam track fixed to the board with the shaft at its center and a cam follower fixed to the wheel bracket. The cam track is geometrically formed to have a number of valleys and peaks along its circumference. As the wheel bracket rotates about the shaft, the cam follower engages the cam track and causes the board and the wheel assembly to move away and towards each other. The resulting forces generate or maintain a generally forward motion in the caster board, without the need for further efforts by a rider. The caster assembly further permits the rider to travel backwards as well as forwards. The cam track is easily changeable by the rider to accommodate various user preferences and skill levels.

Abstract: A combination vehicle frame includes a base frame unit formed of a plurality of frame bars detachably connected to one another. One of the frame bars is provided with a head having intersected first through hole and second through hole. A rear wheel frame unit is detachably connected to the base frame unit remote from the head. A front wheel frame unit is selectively inserted through one of the first through hole and second through hole of the base frame unit.

Abstract: A children's wagon includes a body supported by wheels and having an interior. Panels are pivotally attached to the wagon body and are positioned within the interior of the wagon. At least one such panel has a second panel pivotally attached to it. The panels may be moved between generally upright and horizontal positions so that the wagon features multiple interior configurations.

Abstract: A walking stabilizer equipped to combat the effects of akinesia paradoxica by employing a novel method and device to regulate and actuate a projection instrument which generates a pattern perpendicular to the user's direction of travel. The regulating and actuating device comprises a two pole series switch circuit configuration in tandem with the walking stabilizer's novel dual action braking mechanism. The projection device is only operable when the user concurrently selects its use and when the walker stabilizer is free for movement or in contact with the patient.

Abstract: Disclosed herein is a caster skate apparatus to be propelled in a direction changeable manner by use of rider's both feet. The apparatus comprises front and rear boards (20, 30) to support both feet thereon, first and second rollers (22, 23) mounted to the underside of the front board at front and rear locations by a predetermined distance, third and fourth rollers (32, 33) mounted to the underside of the rear board at front and rear locations by a predetermined distance, a flexible connector (52) having a predetermined length and connected at opposite ends thereof to the front and rear boards to allow the front and rear boards to independently move within a predetermined range. A rotating center of each of the first and third rollers is spaced apart from an axis, having a predetermined inclination angle with respect to undersides of the respective boards, by a predetermined distance.

Abstract: A top-mounted, wide-track axle assembly for a skateboard. The axle assembly includes an axle frame member having a length of at least eight inches and formed substantially in a shape of an inverted “W”. A central portion of the axle frame member is provided with a mounting bracket having a downwardly projecting pin and a slot-shaped hole for pivotably and tiltably mounting the axle frame member on a top surface of the skateboard in a direction perpendicular to a traveling direction of the skateboard. Outer arm portions are provided on opposite ends of the axle frame member for accommodating a pair of right and left wheels outboard of side edges of the skateboard.

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 steering enhancement and braking system for a skateboard or wheeled platform having an actuating element configured to change the position of the skateboard deck relative to the skateboard truck. The actuating element comprises a deck plate configured to be attachable to a skateboard deck, and a truck plate configured to be attachable to a skateboard truck and the deck plate. Upon an application of a force to the skateboard deck the position of the truck plate relative to the deck plate changes. In addition, the system can achieve braking action by transferring the differential motion to the skateboard deck and the truck by the use of the actuating element.

Abstract: A cambering vehicle for human propelled transport comprises an elongate front column, first and second pivot axles at the front column, a first trailing arm pivotally attached to the first pivot axle, a second trailing arm pivotally attached to the second pivot axle, a front ski associated with the elongate front column, and, first and second rear skis associated with said first and second trailing arms. The first and second pivot axles may be inclined downward. Separately, a ski may be adapted for attachment to a conventional cambering vehicle having a front tube with a fork, where the ski comprises a surface having a rear section, mid-section, and front section, the surface being relatively flat at its rear section and mid-section, but curving upward at its front section, and an attachment mechanism for attachment to the fork.

Abstract: A kicktail concave skateboard includes a blank having opposite ends, at least one end being recessed. An element is mounted on the recessed end such that a portion of the element adjoining the blank is flush with the blank. The element is formed of a material having a lower damping coefficient and a higher modulus of elasticity than the blank. The element includes a downwardly facing exposed side having a downward projection thereon, to facilitate the execution of an “ollie” maneuver.

Abstract: A door positioning device for use in a ground surface having an elongated platform with an upper surface and a lower surface. The platform also includes a first end portion and a second end portion. At least one wheel is located at the second end portion of the platform while a brake mechanism is located at the first end portion. A brake is provided with an actuator at the first end portion and a cable and cam mechanism for activating and deactivating the brake member contacting the wheel of the second end portion of the platform. As support is also employed for aiding in the securement of the door on the upper surface of the platform prior to and during movement of the door to a desired position.

Abstract: According to one disclosed embodiment, a skateboard deck comprises a carbon-fiber shell surrounding a longitudinally-extending interior space. The carbon-fiber shell has an upper inner surface and a lower inner surface opposite the upper inner surface; and a longitudinal beam disposed within the interior space. The longitudinal beam has an upper flange bonded to the upper inner surface of the shell, a lower flange bonded to the lower inner surface of the shell, and a web interconnecting the upper flange and the lower flange. The skateboard deck further comprises a generally rigid exterior portion encasing the core member. The exterior portion comprises at least one layer of wood disposed above or below the shell.

Abstract: A steering control coupling structure used in a children's wagon having a wheel assembly and a towing bar is disclosed to include a linking bracket affixed to the wheel axle of the wheel assembly, a first adapter affixed to a carriage and pivoted with the carriage to the linking bracket by a pivot device, the first adapter having a circular coupling hole and two 135° sector guide holes at two sides of the circular coupling hole, and a second adapter, which is affixed to the linking bracket around the pivot device and has a circular coupling block coupled to the circular hole of the first adapter and two 45° sector guide blocks respectively inserted into the 135° sector guide holes for forcing the second adapter to bias against the first adapter when the towing bar is biased to force the wheel assembly to change the steering direction.

Abstract: A flexible skateboard may include a pair of direction casters mounted for steering rotation a twistable one piece skateboard. A center section may be made sufficiently narrower than outboard foot support areas which may be twisted by a rider to add energy for rolling motion to wheels in the casters. The center section may also be made sufficiently resistant to twist so that the skateboard may be ridden as a conventional, non-flexible skateboard.

Abstract: An articulated vehicle includes a rear frame and a front frame linked by an articulation associated with the device for removably locking controlled by a pendular member mounted oscillating on the front frame between a median position for unlocking the articulation and a spaced apart position for locking the articulation, at least when the vehicle is stopped. The vehicle comprises elements for controlling the unlocking of the articulation, at least during start-up, including an auxiliary platform integral in rotation with the rear frame and comprising, at least, two footrests arranged at substantially the same level relative to the ground, on either side of the articulation axis and constituting each, on the side towards which the front frame is inclined, a support for the front frame to be set upright by the vehicle driver, the pendular member returning to its median position for unlocking the articulation.