Abstract: A folding collapsible kick scooter includes a head tube folding structure, which uses a quick-release lock to lock the head tube between an extended position and a collapsed position, and a handlebar folding structure, which uses a quick-release lock to lock the left handlebar and the right handlebar between an extended position and a collapsed position.

Abstract: A skateboard truck comprising a base attachable to the underside of a skateboard and an arm carried by the base and rotatable relative to the base about a first axis. An axle having a pair of wheels mounted at opposite ends thereof is carried by the arm and the axle is rotatable relative to the arm about a second axis. A spring-loaded linkage is operatively connected between the base and the arm for limiting the rotational motion of the arm and biasing the arm towards a center position aligned with the skateboard's direction of movement. The first and second axes provide pivoting of the skateboard in two dimensions.

Abstract: A transformable twist scooter has a handle assembly, a base, a front wheel assembly, a rear wheel assembly and a seat adjustably mounted on the base. The handle assembly has a pair of handle grips pivotally and oppositely connected to distal ends of a T-shaped tube that is adjustably connected to the base, such that the user is able to adjust the angle of the handle grips and the height of the seat to cope with differences in sizes of the user to provide the riding effect.

Abstract: A scooter comprises a footboard, two rear wheels, and a suspension mechanism which is mounted between the rear end of the footboard and the two rear wheels and is formed of a suspension main body, two shock-absorbing devices, and a braking device.

Abstract: A scooter has a plurality of wheels, a steerer, a platform, and a steerer support. The steerer support connects the steerer to the platform. The steerer support can rotate with respect to the platform, allowing the scooter to be folded when not in use. The steerer support can nest within the platform, further allowing the scooter to collapse into a compact position. The steering axis, front wheel diameter, and fork geometry are arranged to provide stable steering. Specifically, the steering axis and the front wheel axis of rotation are both located aft of the centerline of the steerer. Further, the contact point between the front wheel and the ground and the axis about which the front wheel rotates are located aft of the steering axis about which the steerer rotates. The trail, measured between the steering axis and the front wheel contact point, is kept relatively small, between 0 and 75 mm. Also disclosed is a collapsing steerer, a parallel-rail support structure, and a compact braking element.

Abstract: A folding collapsible kick scooter includes a head tube folding structure, which uses a quick-release lock to lock the head tube between an extended position and a collapsed position, and a handlebar folding structure, which uses a quick-release lock to lock the left handlebar and the right handlebar between an extended position and a collapsed position.

Abstract: A scooter includes a horizontal footrest frame and a rear wheel-mounting member fixed to a rear end of the footrest frame. The wheel-mounting frame includes two spaced apart plates which define a wheel-accommodating space therebetween. A rear wheel is disposed between and is journalled to the plates. A curved spring arm is disposed behind the rear wheel, and has a lower section fixed to distal ends of the plates, and an upper section which extends upwardly and frontwardly from the lower section.

Abstract: A skid scooter has a board, a holding seat disposed on a front portion of the board, a down tube inserted in the holding seat, a front tube connected to the down tube, a handle connected to the front tube, a front wheel disposed on a bottom of the front tube, a rear wheel disposed on a rear end of the board, a rear wheel cover disposed on a bottom of the board, and a rear wheel brake device disposed between the board and the rear wheel cover.

Abstract: A Detachable Footplate for Scooters is disclosed. The footplate easily attaches to and detaches from a conventional foot-powered, folding scooter to provide additional width to stand upon, as well as acting as a stand to prevent the scooter from falling over. The footplate permits the scooter stem to fold down by not interfering with the collapsibility of the scooter stem.

Abstract: A wheel brake installed in the front fork of a kick scooter and driven by a brake lever through a brake cable to stop the front wheel of the kick scooter, the front brake including a brake member pivoted to the front fork of the kick scooter above the front wheel, the brake member having a transverse axle projecting out of two sides thereof in the middle and pivoted to the front fork of the kick scooter, a front brake shoe disposed at a front side thereof, the front brake shoe having a brake face adapted for pressing on the periphery of the front wheel of the kick scooter to stop the front wheel of the kick scooter from rotation, and a rear actuating base disposed at a rear side thereof and fastened to the brake cable for enabling the brake member to be pulled by the brake lever to force the brake face against the periphery of the front wheel of the kick scooter; and spring means connected between the front fork of the kick scooter and the brake member to hold the brake member in the non-operative position wh

Abstract: A collapsible scooter comprises two arcuate members welded to the handlebar having two first holes at the other ends and two second holes adjacent the handlebar; a shock absorber having a front end secured between the first holes of the arcuate members; a connection member including two first holes at the front ends with the second holes of the arcuate members pivotably secured therebetween, a transverse section secured to the footboard, a slot in the transverse section, two second holes through the sides of the slot, and two third holes at the rear ends; and an activation member including two threaded holes, a first pin having a threaded head passed through the second holes of the connection member and the rear end of the shock absorber received in the slot to be secured in one threaded hole, a second pin having a threaded head passed through one of the third holes to be secured in the other threaded hole, and a spring pit on the second pin.

Abstract: A set of replacement skates for a scooter. The replacement skates are designed such that each replacement skate can replace a wheel on the scooter. A kit may also be provided with a front end replacement skate and a rear end replacement skate. Both replacement skates have attachment means for fastening the skates to the scooter using the same pins and fasteners used to attach the wheels.

Abstract: The present invention is an electric scooter having batteries concealed below the standing platform in a multipurpose battery pan, an anti-lock brake, a dual suspension, a stow and carry feature, integrated electronics including brake control, throttle control, safety measures and theft protection. The dual suspension scooter includes a chassis; a steering column; a front wheel rotatably mounted on a front axle assembly; a rear wheel rotatably mounted on a rear axle assembly; a front cantilevered suspension mechanism mounted between the steering column and the front axle assembly; and a rear suspension mechanism mounted between the rear end of the chassis and the rear axle assembly.

Abstract: A collapsible skateboard includes an upright handle having lower portion on which is fixedly mounted a bracket, a connector having a curved slot having a lower end formed with a horizontal recess, an upper end formed with a vertical recess, and a circular hole under the vertical recess, an adjust pin inserted into the vertical recess of the connector and the elongated hole of the bracket, a pivot pin fitted through the circular hole of the connector and the circular hole of the bracket, a spring having an upper end connected to the adjust pin and a lower end to the pivot pin, and a platform on which is fixedly mounted the connector, whereby the skateboard can be easily folded up as desired.

Abstract: A scooter has a braking structure comprising a footboard, a pivoting member for pivotally mounting the footboard on the scooter base, and a recovery member enabling the footboard to return to its original position. The footboard has a curved rear segment which is separated from the scooter rear wheel by a distance. As the curved rear segment is pressed by the foot heel of a rider of the scooter, the curved rear segment swivels on the pivoting member to press against the scooter rear wheel in motion.

Abstract: A Detachable Footplate for Scooters is disclosed. The footplate easily attaches to and detaches from a conventional foot-powered, folding scooter to provide additional width to stand upon, as well as acting as a stand to prevent the scooter from falling over. The footplate permits the scooter stem to fold down by not interfering with the collapsibility of the scooter stem.

Abstract: A folding and positioning device of a scooter includes a base secured to the frame of the scooter; a connecting lever having a first end secured to the head tube of the scooter and a second end pivotally mounted on the base by a shaft; a locking bracket slidably mounted on the connecting lever, and having one end capable of being inserted into one of the insertion grooves defined in the base; a handle secured on the locking bracket; and an elastic member having a first end secured to the shaft and a second end secured to the handle. In such a manner, the head tube can be operated and folded easily, thereby ensuring the safety of use.

Abstract: A combined skateboard scooter/exerciser comprises a handlebar, a board, a steering device, a transmission device, and a wheel device. The steering rod is rotatably supported by the board and thus rotatable relative to the board. In addition, the steering rod is movable back and forth relative to the board. The handlebar is mounted to an upper end of the steering rod to move therewith. The steering device is mounted to a lower end of the steering rod to move therewith. The wheel device is mounted to the steering device. The transmission device is mounted between the lower end of the steering rod and the wheel device such that back and forth movement of the steering rod urges the wheel device to move forward via transmission by the transmission device.

Abstract: An improved structure of multifunctional scooter mainly comprises of a axle base centered with a long hole and respectively connected with the fastening frames on the two sides, two wheel axles projecting from the outer sides of the fastening frames for pivotally jointing the front sliding wheels, the front ski board or the front ice skating blade, furthermore, a connect link jointed to the said rigid axle to allow the vertical rigid axle on the front end of the footboard to go through the said axle base and connect a drive link to the two bottom ends of the two rigid axles; a rear sliding wheel, a rear ski board or a rear ice skating blade disposed on the posterior aspect of the footboard to allow the player while stepping on the footboard surface and sliding on the ground, the snow or the ice to be able to step on the two sides of the footboard to make the rigid axles to deflect leftward or rightward to achieve the controlling of the travel directions of the scooter.

Abstract: A trick bar for a foot scooter including a pair of generally parallel elongated support arms having first ends thereof attached to a rear end of the foot scooter. A foot bar extends across second ends of the support arms. A wheel is supported intermediate the first and second ends of the support arms so as to rest a distance above the ground on which the foot scooter rests. The wheel is rotatable about an axle that extends across the support arms intermediate the first and second ends thereof. Upon application of downward pressure on the foot bar, a front end of the foot scooter raises off the ground and the trick bar wheel contacts the ground to permit the rider of the scooter to perform tricks. The support arms are preferably pivotally attached to the foot scooter so as to be folded over the foot scooter during non-use.

Abstract: A shock-absorbing skateboard device has a main board, a downtube connected to the main board, a head tube connected to the downtube, a handle disposed on the head tube, a shock-absorbing mechanism connected to the head tube, a front wheel support plate connected to the shock-absorbing mechanism, two front wheels connected to the front wheel support plate, a rear wheel support frame connected to the main board, and a rear wheel connected to the rear wheel support frame.

Abstract: A scooter includes a bar transversely connected to the front end of the board and two L-shaped arms are pivotally connected to two ends of the bar. Two front wheels are respectively connected to the two arms. A shaft member has two rear wheels respectively connected to two ends of the shaft member and a U-shaped frame is connected to a top of the shaft member. A mediate member fixedly connected on an underside of the board is pivotally connected between two extensions of the U-shaped frame. When steering, the board is inclined and the rear wheels will not be lifted above the ground.

Abstract: A scooter folding structure comprises a fastening seat, a connection seat, a retaining member, an urging member, and an actuation member. The fastening seat is fastened with the footboard of the scooter. The connection seat is fastened with the handlebar frame of the scooter such that the connection seat is pivoted with the fastening seat to swivel between a first position and a second position. When the connection seat is located at the first position, the retaining member is urged by the urging member to remain at a fixed position at which the fastening seat and the connection seat are securely joined together. The retaining member can be actuated by the actuation member to withdraw, thereby enabling the connection seat to swivel to locate at the second position at which the scooter is folded.

Abstract: A brake device for a skate cart or scooter includes a rigid wheel hood frame mounted around a rear wheel. A footrest is positioned behind the wheel hood to allow a user to rest a heel on the rear footrest. The rigid wheel hood frame is formed with an opening to allow a brake stop to contact with the wheel when a toe is pressed down on the brake stop. The brake stop is connected with a resilient member so that brake stop is pivoted to contact the rear wheel by stepping on the brake stop. The brake stop returns by the resilient member when the user removes a foot from the brake stop.

Abstract: A foldable scooter step board includes a board body and a pair of supporting walls. The board body has a predetermined size for supporting a user standing thereon, wherein a wheel chamber is integrally provided at a tail portion of the board body for rotatably mounting a rear wheel. The pair of supporting walls are integrally protruded underneath the board body for rigidly supporting the board body. Therefore, the board body with the supporting walls is integrally formed in one piece such that the step board is capable of more evenly distributing and supporting a downward force and stress applied by the user's weight.

Abstract: A two-wheel scooter-like vehicle is adapted for use by acrobatic adults by using not only the wheels, but a snag-free, omni-directional sliding surface, under a large standing area, which may be maneuvered by a rider into engagement with the ground and ground-supported objects to perform a variety of tricks and displays of acrobatic skill.

Abstract: A kickstand device for a skate cart attached to a skate cart frame allows a skate cart to stand up. The kickstand can be biased in closed position by springs. The kickstand can also be unfolded into open position where the same springs bias the kickstand in open position. A user rides the skate cart with the kickstand in closed position. When the user wants the skate cart to stand up, the user folds the skate cart kickstand into open position.

Abstract: A human powered skateboard roller coaster used by skateboarders having various degrees of skateboarding skills. The skateboard roller coaster broadly includes a skateboard having wheels attached to a first and second rail of a roller coaster like track. The roller coaster like track can have various curved and up and down track configurations. The skateboard includes a foot platform with a removable upwardly extending adjustable hand grip support with a hand grip attached to the top of the support. The hand grip provides a convenient safety grip for helping balance during practice. The foot platform includes a first end portion with first pivot bolt and a second end portion with second pivot bolt. The first and second pivot bolts are attached to wheel pivot blocks mounted under the end portions of the foot platform. The pivot blocks include wheel bearing supports. A plurality of upper and lower first wheels and upper and lower second wheels are rotatably mounted on the wheel bearing supports.

Abstract: A folding structure of scooter mainly comprises of a front and a rear footboards and a hollow sleeve panel engaged with the front and the rear footboards, wherein the sliding grooves in the shapes of long holes are situated respectively on the side edges of the front and the rear footboards; the through holes disposed respectively on the four corners of the sleeve panel at responding positions to the sliding grooves of the front and the rear footboards for sleeving the front and the rear footboards into the sleeve panel and then insert the bolts to screw the through holes on the sleeve panel and the sliding grooves on the front and the rear footboards to make the front and the rear footboards expandable to be pulled outwards for the user to step on to slide and contractable inside the sleeve panel to reduce the volume for facilitating carriage, shipping and storage.

Abstract: An improved king pin nut removably securing a king pin to a skateboard is disclosed. The king pin nut of the present invention includes an elongated generally cylindrical nut that is internally threaded for receiving the threaded shaft of the truck king pin. The king pin nut includes a shoulder extending from an intermediate portion of the periphery of the elongated nut, the shoulder having a configuration complementary to a receiving recess provided in the truck base bracket to which a truck axle bracket is to be assembled, and is secured in position for single-tool installation of various skateboard components.

Abstract: A scooter steering control on small-wheeled scooter having a steerable front wheel on a handlebar, the control comprising two split sleeves fitted around the handlebar and the mounting tube on the scooter body, and a control pin slidable on the upper sleeve into and out of a recess on the lower sleeve. The recess has angularly spaced sidewalls forming stops for limiting turning of the front wheel. A spring-loaded latch holds the pin releasably in engaged and disengaged positions, and a second spring urges the pin toward the disengaged position.

Abstract: A scooter steering control on small-wheeled scooter having a steerable front wheel on a handlebar, the control comprising two split sleeves fitted around the handlebar and the mounting tube on the scooter body, and a control pin slidable on the upper sleeve into and out of a recess on the lower sleeve. The recess has angularly spaced sidewalls forming stops for limiting turning of the front wheel. A spring-loaded latch holds the pin releasably in engaged and disengaged positions, and a second spring urges the pin toward the disengaged position.

Abstract: A structure of a pedal cycle with animation display comprises a screen, a linking cord, a transmission gear and a retainer adapted to a frame of the cycle; the screen including a cabinet having a built-in display panel and a cover plate; a display section provided on the front of the cabinet, the display board driven by the linking cord; a transparent film having multiple lines thereon; a board adhered with a pattern being provided on the cover plate; the transmission gear having an active gear and fixed to a hub of a wheel of the cycle; the retainer fixed to the frame of the cycle having a passive part fastened to the linking cord; the transmission gear being driven by the advancing cycle to rotate with its active gear relatively to the passive part and to indirectly drive the linking cord by compromising the circumference of the active gear, then the display panel for the transparent film to move between the display section of the screen and the board of the cover plate.

Abstract: This invention provides a scooter and a braking system for a scooter applied to the back or rear wheel of the scooter. A pivotally mounted mudguard may be attached to a drive lever to drive a brake pad into contact with the outer perimeter of the rear wheel. In an alternative embodiment the brake pad is pivotally mounted with respect to a fixed mudguard with a portion in the form of a brake pad or similar being a depressible portion protruding through or around the mudguard for access by the user.

Abstract: The present invention provides a rolling device that is adapted to provide a continuous rolling surface on an underside of a conventional scooter. The rolling device comprises a chassis and a series of rollers rotatably attached to the chassis, thus enabling the scooter to smoothly roll over bumps, dips, or other uneven surfaces without stopping suddenly or tipping over. The series of rollers are mounted at a uniform height that is elevated from the bottom surface of the front and rear wheels of the scooter to provide a uniform ground clearance for the scooter.

Abstract: A wheeled walker having a moveable carry basket. The walker has a carry basket mounted between the front leg members. The mounting arrangement permits the basket to be moved between a first position in which the basket projects forward of the front leg members for ease of loading and unloading and a second position in which the basket is displaced substantially rearward of the front leg members under the seating surface.

Abstract: Brake/shock-absorber seat structure of handle-controlled skate board. The front ends of rear wheel brackets are pivotally connected with a lower bar of rear section of the skate board by a shaft pin. The bottoms of front sections of the rear wheel brackets are connected by a connecting plate. A projecting circular receptacle is formed in the connecting plate. The rear wheel brackets are formed with through holes behind the receptacle. A rear wheel is pivotally connected with the rear portions of the rear wheel brackets. The wheel cover is locked on the middle portion and rear end of the rear wheel brackets. The middle portion of the wheel cover is equipped with a brake structure. One end of the shock-absorbing spring abuts against the bottom face of the skate board. The other end thereof is received in the receptacle of the connecting plate of the rear wheel brackets. The restricting slide rail is locked on the locking plates of the skate board.

Abstract: The present invention relates to an automatic restoring device of a wheel of a scooter which includes a footboard, a steering rod and an automatic restoring device. The footboard is connected with the steering rod and the automatic restoring device at a free end thereof. Moreover, one end of the steering rod is secured with the automatic restoring device. A shaft is pivotally installed in the shaft sleeve of the automatic restoring device. The shaft bushing and the resilient element tightly enclose the shaft while a firm connection with the shaft sleeve is secured. Furthermore, the automatic restoring device is brought into rotation in turning the steering rod so that the wheel is also turned to change direction. And the resilient element creates a restoring force because of being pressed so that the wheel restores itself by means of the resilient force of the resilient element of the automatic restoring device after the external force upon the steering rod is removed.

Abstract: A skate cart includes a board with a rear wheel connected to a rear end of the board and a head tube connected to a front end of the board. A steerer tube rotatably extends through the head tube and a fork member is located on a lower end of the head tube. Two plates are respectively pivotably connected to two sides of the fork member and a front wheel is connected between the two plates. A spring is connected between the plate and the side of the fork member the same side of the front wheel. The front wheel together with the two plates move toward the head tube by compressing the springs so as to absorb vibration from the road.

Abstract: A brake device of a scooter of the present invention includes a scooter body having a front steering axle provided with a front wheel and a seat hole, and an axle pivotally provided with a rear wheel, and a brake pedal pivotally mounted on the scooter body by a pivot member and provided with a brake pad. When the brake pedal is trodden, the brake pad is rested on the rear wheel. A brake connecting member has a first end rested on the bottom of the brake pedal. The brake connecting member is pivoted by a ring to rotate. The brake connecting member has a second end connected to a first end of a pulling member. A front brake member is pulled by a second end of the pulling member. The front brake member is pivotally mounted on the seat hole of the scooter body, and is provided with a brake pad. When the brake pedal is trodden, the brake pedal and the front brake member are respectively urged on the rear wheel and the front wheel synchronously by a drawing action of the pulling member.

Abstract: A kick scooter includes a footplate, a handle unit pivoted to a front side of the footplate and holding a front wheel, a rear wheel, and a shock absorbing mechanism coupled between a rear side of the footplate and the rear wheel, wherein the shock absorbing mechanism includes a rear fork pivoted to the footplate and adapted to hold the rear wheel, a stop plate fixedly provided at the bottom side of the footplate, a springy member disposed at the front side of the stop plate, a threaded pull bar pivoted to the rear fork and inserted through a through hole on the stop plate and a center axial hole of the springy member, and a lock nut threaded onto the threaded pull bar and stopped at one side of the springy member against the stop plate for enabling the springy member to absorb shocks when the rear wheel is moved over an uneven road surface to vibrate the rear fork.

Abstract: A dual-footboard scooter in a tricycle format having a front wheel or ski coupled to a steering post passing through a steering column to join a steering handle and a bifurcated frame extending rearwardly from the steering column forms two branches, extensions of which each support a rear wheel or ski, respectively. In operating the scooter, the rider grasps the steering handle, rests one foot on either footboard and swings the other foot extending through the extended free space between the footboards and bifurcated frame, making pushing contact with the ground or snow to propel the scooter.

Abstract: A scooter includes a handle secured to the front portion of a board and rotatably relative to the board between an upright working position and a lowered folding position. A latch ring is slidably engaged on the handle and selectively engaged with the seat for securing the handle to the board at the upright working position and the lowered folding position. The latch ring includes one or more projections for engaging into the seat and for solidly securing the handle to the seat. A fastener or a quick release locking device may solidly secure the latch ring to the handle.

Abstract: A scooter includes a wheel rotatably secured to a board, a spring engaged in one end of the mudguard, and a shaft engaged through the mudguard and the spring for easily and quickly securing the mudguard and the spring to the board. The spring may bias the mudguard away from the wheel. The mudguard includes a bulge extended from the inner peripheral surface for engaging with the wheel and for decreasing the contacting area of the mudguard with the wheel. The spring has two coils engaged on the shaft, and a connected middle portion for increasing the resilience of the spring.

Abstract: A scooter comprises a deformable footboard, a handlebar frame fastened with the front end of the footboard, a front wheel pivoted to the bottom end of the handlebar frame, a rear wheel pivoted to the rear end of the footboard, and a one-way driving mechanism disposed at a pivoting portion of the rear wheel and the rear end of the footboard to cause the rear wheel to turn unidirectionally at the time when the footboard is caused by an external force to deform.

Abstract: A steering control mechanism formed of a base, two steering bars, an intermediate block, and two links, and installed in a kick scooter to function as two parallel four-bar linkages for controlling the steering direction of the front wheels of the kick scooter.

Abstract: A motorized retrofit kit for lightweight collapsible mini scooter is described as a complete conversion for a lightweight push scooter to motor driven units. Owners of existing scooters can install a mini electric motor battery system, wiring and on/off button to drive rear wheel with limited skills and equipment.

Abstract: A replacement front wheel assembly (2) for a roller board having a footboard (48) provided in the rear end portion thereof with at least one wheel and in the front end portion thereof with a steering head bearing means (4) for connection of a front wheel assembly (2) and a steering rod (54) connected to the front wheel assembly (2), characterized in that the front wheel assembly (2) comprises a connecting member (6) for connection to the steering head bearing means (4) as well as two front wheels (8; 10) that are each offset towards a respective side of the longitudinal axis of the roller board.

Abstract: A tricycle is formed of a front tube, a handlebar set fastened pivotally with the front tube, a front fork pivoted with the handlebar set, a front wheel pivoted to the front fork, two swiveling members fastened pivotally with the front tube, two footboards fastened with the swiveling members, and two rear wheels fastened pivotally to the underside of the rear end of the two footboards. The footboards are provided in the upper side with an inclined tread surface to minimize the likelihood that the ankle of a rider of the tricycle is injured.

Abstract: A folding device for a scooter includes a base plate, a head tube, a handlebar stem, a support rod, and a support base. The support base includes a first side plate and a second side plate, an arcuate slide track defined in the first side plate, and a first locking hole and a second locking hole respectively defined in the second side plate. The support rod includes a transverse tube pivotally mounted between the first side plate and the second side plate and a receiving chamber located above the transverse tube for receiving a support tube. A pull rod is slidably mounted in the support tube and has a first end provided with an outer thread slidably mounted in the slide track and engaged with a pull knob and a second end provided with an enlarged head detachably received in the first locking hole or the second locking hole. A guard plate is mounted for supporting the support rod, and a retaining piece is pivotally mounted on the guard plate for retaining the support rod.