Abstract: The present invention relates to a roller skate frame. The roller skate frame includes a plate being pressing molded into a main frame of the roller skate comprising two wheel-mounting plates corresponding to each other, and a front bottom connecting face and a shoe-mounting plate connecting thereto. The front bottom connecting face and the shoe-mounting plate are spaced apart with a suitable distance. Further, the front bottom connecting plate is formed by an upper and a lower bridging plate corresponding to each other, and both of which are positioned with a fastener hole respectively.

Abstract: A roller skate having enhanced durability and stability is disclosed. Furthermore, the roller skate is particularly adapted for affixing to a person's footwear, such as sneakers, boots or the like. The skate includes a platform for supporting a skater's foot. The platform includes a toe plate and heel plate connected by an adjustable connecting assembly. A front truck is affixed to the underside of the toe plate, while a rear truck is affixed to the underside of the heel plate. The front truck includes simple bracket arms for affixing a single front wheel which is capable of rotating, but not capable of tilting about the platform's longitudinal axis. Meanwhile, the rear wheel truck is mounted to the underside of the heel plate so as to permit both tilting movement about an inclined longitudinal axis, and also rotation about a transverse axis relative to the roller skate's platform. Preferably, the roller skate includes three wheels rotatably mounted to the rear wheel truck.

Abstract: An in-line skate frame assembly has a rigid frame and an elongate grinding insert releasably engaged with the frame. The frame and insert are secured together to the sole of a shoe or boot by frame bolts extending through upper portions of the frame and insert. The frame has spaced side walls with downwardly facing recessed regions in which the insert is mounted. The insert extends along a major portion of the length of the frame and has a downwardly facing, centrally located grinding surface which terminates short of the opposite ends of the insert. Different inserts with grinding surfaces of different shapes and lengths are releasably secured to the frame for performing alternative grinding maneuvers.

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

Abstract: A roller wheel assembly includes a support member, a bearing-based rotatable coupling, and a wheeled support structure having two rollably coupled, spaced, and axially aligned roller wheels. The support member includes a first upper portion, and a second downwardly angled portion, with the downwardly angled portion having a through-bore proximate to a lower end. The wheeled support structure is rotatably coupled to the downwardly angled portion of the support member such that a side-to-side tilting of the upper portion of the support member, with respect to a ground surface, provides an enhanced and sharp turning capability. This abstract is provided to comply with rules requiring an abstract, and is submitted with the intention that it will not be used to interpret or limit the scope and meaning of the claims.

Abstract: A hanger (2) for a skateboard truck includes a body and an axle (4, 12) integrally formed with the body, wherein in use, the axle (4, 12) is prevented from disengaging the body.

Abstract: A hanger for a skateboard truck that generally comprises a ring-shaped member, a pivot stem, and an elongated barrel that houses an axle. Such elongated barrel defines a plurality of corrugations on the bottom thereof, the longitudinal axis of each corrugation aligned generally perpendicular to the longitudinal axis of such elongated barrel. Such corrugations are strategically distributed along such elongated barrel to ensure adequate engagement of some number of corrugations with such obstacle during a grind, helping to prevent such hanger from slipping off from such obstacle in a direction generally perpendicular to the general direction of intended grinding motion along such obstacle. Such hanger can be adapted to cooperate with a variety of existing skateboard truck baseplates.

Abstract: A skateboard is disclosed that includes a rear wheel system and a front wheel system. The rear wheel system includes a pair of rear wheels that are mounted on a rear axle that is coupled to a rear truck that is attached to an underside of a rear portion of a board. The rear wheel system permits each of the pair of rear wheels to alternately move toward a front portion of the board responsive to a force alternately urging each of the pair of rear wheels toward the underside of the board. The front wheel system includes a pair of front wheels that are mounted on a front axle that is rotatably attached to a mid-truck such that the front axle is movable about a first axis of rotation. The mid-truck is rotatably attached to an attachment base that is secured to an underside of the front portion of the board such that the mid-truck is rotatable about a second axis of rotation.

Abstract: A roller skate or skate board that has a steering and shock absorbing suspension for the wheels (57, 58), characterized by an axle and pivot unit (24, 38, 39) that is partially embedded in a shock absorber (2, 13, 23, 27) that extends longitudinally in the direction of the pivot axis, held in a bracket that is mounted to the roller skate or skateboard with the pivot at an acute angle to a sole plate of the roller skate or skateboard.

Abstract: An adjustable hanger pivot angle and kingpin board apparatus includes a truck having wheels, a hanger, and a kingpin, a truck base plate attached to said truck, and, a curving track adjustably connected to said base plate to adjust the kingpin in relation to the curving track. An adjustable hanger pivot angle and kingpin board apparatus, includes a truck having wheels, a hanger, and a kingpin, a truck base plate attached to said truck, a truck round attached fixedly to said truck, said truck round including a flat bottom and curved top, and, a curving track attached adjustably to said truck base plate through said truck round to adjust said hanger pivot angle and kingpin angle in relation to the curving track. A skateboard provided with one or more adjustable hanger pivot angle and kingpin board apparatus.

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: The present invention relates to a size-adjusting fastening mechanism for stakes comprising fixed locking grooves and a movable locking convex block, whereby when one of the grooves engages with the convex block, tooth position is loosened and toecap is telescopic upon pulling. When the groove and the convex block are rotated to deflect so as not to engage with each other, tooth position is pressed to lock so as to be irremovable. Such a structure requires that the pull handle be pulled horizontally forwards and backwards. Being secured with rivet punching, the claimed device possesses good stability, is simple in structure, low in cost and easy for operation.

Abstract: The roller skate according to the invention is equipped with smaller inline rollers (40) arranged below the boot (10) and with outer, larger rollers (30), the upper parts of which protrude above the boot sole (11). This roller skate can be moved on four rollers (30) and (40) in the manner of a four-wheel roller skate, or, in certain phases, just on two inline rollers (40) in a similar manner to an inline skate.

Abstract: A personal transport device including a transportation attachment, a foot platform situated above the transportation attachment and at least one fastener connecting the foot platform to the transportation attachment. The foot platform has two parallel extending surfaces supporting a user's foot so that the longitudinal axis of the user's foot can be positioned roughly perpendicular to the direction of travel of the transportation attachment The transportation attachment can be wheels, skates or even skis.

Abstract: This invention is directed to a roller shoe having a pair of rollers connected together by a strap which may be converted to a walking or running shoe by removing the rollers and strap as a unit from the outsole of the shoe.

Abstract: A skateboard kit for a skateboard having a skateboard deck and a skateboard truck is provided and includes an extension member structured to couple to the skateboard deck, with a first section of the extension member positionable at an original skateboard truck mounting position on the skateboard deck, and a second section of the extension member comprising a new skateboard truck mounting position, with the second section angled relative to the first section so that when the skateboard truck is coupled to the new skateboard truck mounting position on the second section, the skateboard truck is positioned at an angle relative to the original skateboard truck mounting position and also located at a different skateboard deck lengthwise location from the original skateboard truck mounting position.

Abstract: The aim of the invention is to improve inline skates so as to provide stability during skating, good acceleration, and added skating fun by having the skates turn more or less in accordance with the tilting angle. Said aim is achieved by a rolling device in which the rollers that are arranged largely one behind another are rotatably mounted in individual roller supports, the roller supports are pivotally attached to the chassis by means of inclined shafts, and the rollers are disposed in a laterally offset manner relative to the center line. In a simple embodiment depicted in FIGS. 4a and b, the steering unit is composed of two respective rollers (2) which are mounted in a rocker-type roller support (3?) in an offset manner relative to one another by a distance (9). The roller support (3?) is pivotally attached to the chassis (not depicted) by means of a shaft (8) which extends at an angle ? relative to the horizontal line.

Abstract: A truck assembly is used in a wheeled recreational device including a base plate and hanger. The base plate defines a plurality of mounting holes adapted for receiving respective threaded bolts, and further defines a corresponding plurality of fastener retention regions surrounding respective mounting holes. Each fastener retention region includes point-engaging structure adapted for engaging at least two points of a multi-point threaded nut, such that the point-engaging structure substantially prevents rotation of the threaded nut upon mating attachment of a corresponding threaded bolt. The hanger resides adjacent to the base plate, and includes a wheel axle adapted for carrying at least one wheel of the recreational device.

Abstract: A skate device that has one or more turnable wheels. In one group of embodiments, the turnable wheels may be linked such that when one wheel turns another wheel turns in a manner that facilitates turning. In another group of embodiments, the turnable wheels are not so linked. The skate device of the present invention may achieve turning from a point underneath the shoe or foot region of the skate, thus more closely approximately turning on ice skates. The skate device may have inline wheels and maybe relatively light-weight and compact.

Abstract: A personal transportation device is described having a U-shaped truck, a pair of wheels attached to the truck, and a platform mechanically coupled to the truck, such that the platform is operable to receive a user's foot. The personal transportation device can further include an additional pair of easily removable wheels, and can be propelled by a rider swiveling his or her hips back and forth to cause the device to move in a targeted direction.

Abstract: An assembly for a wheeled platform includes a platform element adapted to be attachable to a platform and a housing adapted to receive the platform element, wherein a change in a contact point of the platform element relative to the housing results in a turning response of the wheeled platform.

Abstract: A rear-wheel skating shoe provides an enhanced shoe stand with a single fulcrum for a wheel axle to make the structure at positions between a sidewall and a wheel axle and between a sidewall and a bottom plate of the shoe stand stronger to facilitate exposing luminous wheels and protect a user's safety effectively. The shoe includes a left shoe stand, a right shoe stand, a metal screw rod at external sidewalls of the shoe stands, a luminous wheel on the metal screw rod, a left reinforced stand in a sidewall of the left shoe stand, a right reinforced stand in a sidewall of the right shoe stand, and a reinforced plate at the bottom of the bottom plate of the shoe stand and connected to the right reinforced stand. The metal reinforced elements of the skating shoe give a strong structure, and the luminous wheels provide a color effect.

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 heeling apparatus includes a shoe with a unique feature in the heel that allows one to walk, run, or roll seamlessly. The appearance is that of normal footwear because of the covert wheel assembly. The stealth wheel in the heel gives one the ability to roll or slide in areas you could only walk. Heeling is a new activity that employs a unique method of rolling and requires a newly learned skill set of balance, positioning, and coordination.

Abstract: A roller skate having enhanced steerability and stability is disclosed. The skate includes a platform for supporting a skater's foot and front and rear wheel trucks secured to the underside of the platform. A pair of front wheels is rotatably mounted in transverse axial alignment on the front wheel truck and a pair of rear wheels is rotatably mounted in transverse axial alignment on said rear wheel truck. The pairs of front and rear wheels are also in parallel axial alignment with each other and mounted on their respective wheel trucks for resiliently controlled, tilting movement about downwardly inclined longitudinal axes. In addition, a fifth wheel is rotatably mounted on the front wheel truck between the pairs of front and rear wheels and in parallel axial alignment with the wheel pairs.

Abstract: A method of customizing a blade holder for an ice skate, comprising: (a) providing to a customer a blade holder body being at least partly made of a clear material and comprising a front pedestal with a front inner surface, a rear pedestal with a rear inner surface and a bridge portion interconnecting said front and rear pedestals, the front and rear inner surfaces defining respective front and rear cavities; (b) providing to the customer a plurality of graphical elements; (c) receiving from the customer an indication of a certain graphical element selected from the plurality of graphical elements; and (d) applying the selected graphical element to one of the front and rear inner surfaces such that the selected graphical element is visible through the clear material.

Abstract: The present invention relates to an improved skateboard system and method of assembly. One embodiment of the present invention relates to an improved skateboard system that includes coupling a mounting bracket between a conventional skateboard deck and truck. The mounting bracket effectively drops the deck closer to the ground, thereby enabling increased stability and performance. Likewise, the design and materials of the bracket provide increased vibrational dampening for the system. In addition, the couplings between the bracket and deck and the bracket and truck are releasable to enable interchanging of components. A second embodiment of the present invention relates to an individual skateboard bracket. The bracket further includes a truck coupling region, a medial region, and a deck coupling region. In profile, the truck coupling region is generally higher than the deck coupling region, facilitating an overall drop-down shape.

Abstract: An ice skate chassis is configured so that a user can adjust the pitch of the skate chassis between a plurality of discrete pitch positions. The pitch is adjusted by locking the ice blade at a desired angle relative to a bladeholder of the chassis. The blade can be positively locked at a plurality of discrete, repeatable angle positions so that the angle will not slip or creep during skating.

Abstract: A sliding apparatus for a roller skate shoe includes a roller seat fixed to a rear section of a sole of a shoe body. The roller seat is formed with an accommodating slot, which is combined with a roller assembly through assembling elements. The roller assembly includes a pivoting frame having a center formed with a long slot. Each of two sides of the long slot is formed with a shaft hole seat for supporting and positioning a rotating shaft. The rotating shaft passes through several rollers that may be rotated freely to move the roller skate shoe. Thus, the roller assembly can be replaced with a new one so that the lifetime of the roller skate shoe is lengthened and the environment protection effect can be achieved.

Abstract: Roller shoes in which a roller is installed on a shoe base in a detachable manner comprises a plurality of roller installation grooves formed at the center of the shoe base, a roller axle support inserted into the roller installation grooves, wherein the roller is attached to the roller axle support by a magnetic force, a break mechanism formed at both ends of a middle portion of the front and utmost end of the rear of the shoe base, and a cover mounted in the roller installation grooves. A roller axle support groove formed at both ends of a U shape is inserted in the roller installation groove, and a roller installation part comprising the roller axle is inserted in the roller axle support groove for the roller to be installed in a detachable manner.

Abstract: An inline skate wheel assembly includes a loop that has a centrally disposed opening extending therethrough. The loop has an inner perimeter surface having a ring integrally attached thereto. A hub assembly includes a cylinder that has a first end and a second end. The first and second ends are open. A first perimeter flange is attached to an outer surface of the cylinder and abuts the first end. A second perimeter flange is attached to the outer surface of the cylinder and abuts the second end. The cylinder has a break therein so that a first portion and a second portion of the cylinder are defined. An axle may be extended through the cylinder when the first and second portions are extended into the loop and abutted against the ring so that the cylinder is rotatably mounted on the axle. The axle is secured to an inline skate track.

Abstract: The present invention teaches an apparatus and method for removably securing an article of footwear suitable for walking, running, or bicycling to a wheeled skate. Further, the present invention also teaches a brake device for use with a wheeled skate. In addition, the present invention teaches a wheeled skate including a suspension system that can be propelled with the use of linear or side stroke skating techniques. Moreover, the present invention teaches a quad wheeled skate having advantageous structure and function for recreational skating and aerobic exercise.

Abstract: A pair of wheeled skate-skis comprising a chassis with two upwardly projecting forked ends, a flexible foot strap attached to a front side of the chassis, a front buckle slide fastened to an opposite front side of the chassis, two buckle slides, an adjustable binding, a front wheel assembly and a rear wheel assembly. To secure a shoe in position, the flexible foot strap is wound around the shoe and through the front and rear buckle slides and folded back to be fixed to itself by a hook-and-loop fastener. The upwardly projecting forked ends of the chassis have a plurality of axle-receiving holes for mounting wheels of various sizes and types. The chassis can be made by injection molding or compression molding or by cutting a section of fiberglass I-beam.

Abstract: A skateboard deck includes a hole or cavity formed therein, which is filled with a clear, transparent, or translucent filler material that does not significantly alter the structural integrity of the deck. The filler material forms a window or a translucent insert in the deck. In one practical embodiment, an object (or objects) is located within the window or translucent insert. The object may be a decal corresponding to the brand, manufacturer, distributor, or retailer of the skateboard deck, an active electronic component, or any suitable feature, compound, apparatus, device, or material.

Abstract: A roller skate is disclosed, in which two wheels are provided, and width can be freely adjusted, and the wheels can be detachably attached to a rear side of a shoe with a band, and the wheels are moved down when used, and the wheels are moved up when not used by allowing the wheels to rotate up and down. So, when not used, the user can walk like the shoes are worn in real. The movement and wearing are easy, and the size can be freely adjusted, and it is very easy to start, run and stop.

Abstract: A truck for a skateboard has a shaft mounted thereto. The shaft has wheels coupled to both ends thereof. A coupling part having a through-hole is projectedly formed in one side of a middle portion of the shaft, and a support part is projectedly formed on the other side of the middle portion of the shaft. The truck is formed of a plate-shaped member in a manner such that both ends of the plate-shaped member are bent to face each other and define center arms. The coupling part is locked to one center arm by a connector, and the other center arm has a pocket defined therein so that the support part can be inserted into the pocket with an elastomeric element coupled in the pocket.

Abstract: The skateboard wheel and axle assembly includes an axle rigidly mounted in a hangar, with opposite ends of the axle extending from the hangar. Each end of the axle has an axial blind bore defined therein closed by an end cap and a plurality of holes defined radially adjacent the end cap. A spring-biased detent pin slidably mounted in the bore urges a plurality of detent balls to partially extend from the radially disposed holes. The detent balls engage an annular groove defined in the inner race of the outer wheel bearing to retain the wheel on the axle. The detent pin has a release arm extending through aligned slots in the axle and the hangar that can be retracted, compressing the bias spring, in order to withdraw the detent balls from the groove so that the wheel can be pulled off the axle.

Abstract: A skate includes a midskate hinge in the shoe to preferentially flex the shoe base at the metatarsal area, a forward hinge to allow the rear of the shoe to be raised in relation to the rear of the skate frame, and a third hinge to laterally stabilize the rear of the shoe as the shoe base is flexed.

Abstract: A skateboard truck with a single kingpin assembly mechanism with a compressible single bushing with a graduated coefficient of compressibility and built-in cam stops. The truck allows for superior rotation of the wheels due to the single kingpin assembly, which presents an improvement over the prior king-pin and bolt, as there is less stress on the moving parts, the danger of wheel-bite is reduced, and a tighter steering angle can be maintained. The axle hanger is reversible to allow a user to change the height of the skateboard deck from the surface. Because it is made from fewer parts, the truck is simpler to construct, take apart and repair, and can be made less expensively than traditional trucks.

Abstract: The present invention provides a shoe having a folding roller assembly which is mounted in a receiving seat formed in an outsole of the shoe. The folding roller assembly includes a frame (310) which is mounted in the receiving seat, a swing case (320) which is rotatably coupled to the frame, a turning shaft (332) which is rotatably inserted into a cylindrical hole of the swing case (320), a yoke (331) which is coupled to an end of the turning shaft (332), and the roller (340) which is rotatably coupled to the yoke (331). The folding roller assembly further includes a first locking means which locks the swing case (320) and the yoke (331) to the frame (310) while the roller (340) is extended to the outside, and second locking means which locks and releases the swing case (320) to and from the frame (310).

Abstract: A size adjusting mechanism for inline roller skate includes a boot seat, and a toe cap longitudinally movably mounted above the boot seat. An engaging element is controlled by a control element to transversely slide in the boot seat. The control element has a curved inner end contacting with an end of the engaging element, and turnable about an eccentric pivot shaft. A first and a second adjusting element are respectively provided on the engaging element and below the toe cap to normally engage with each other and thereby keep the toe cap immovable on the boot seat. When the control element is turned for the engaging element to engage with a point on the curved inner end farther from the pivot shaft, the first adjusting element is disengaged from the second adjusting element, allowing the toe cap to move relative to the boot seat.

Abstract: The object of the invention is universal ice-skate and roller-skate, which is suitable for use both on ice and other flat surface for sport and entertainment activities. The invention relates for a universal skate structure, which has a frame joined directly or indirectly the shoe sole and has a running gear with rollers fixed to the frame, which is characterized by that, it has rollers (7) or discs (8) joining each other on the ground placed in 60-120° (?) angles—preferably 85-90°—connected to the frame (2) preferably by a withdrawal bearing (6). The invention relates for further a universal skate structure which has a frame joining directly or indirectly the shoe sole and a running gear with rollers fixed to the frame, which is characterized by that, the running gear with rollers has a front roller (17) and an aide roller (18) placed closely after one another on a bridge (13) in the front part of the skate, furthermore there are back rollers (19) along the same axle (25) placed parallel with each other.

Abstract: An innovative truck assembly for a skateboard including a combination of configurable coaxial roller designs coupled with transverse roller bearings which enable the user skilled in the art to negotiate uneven terrain while providing various degrees of motion and assisting in the prevention of damage to the equipment, the user, and to private and public property. It also eliminates the need for waxing various surfaces for the intended purposes of reducing friction against non-rotating members of the current truck designs. The combinations stated in the embodiment can be altered to suit the various skill levels of the user and each configuration can provide the necessary means to accomplish the various types of maneuvers with inanimate objects with greater ease and responsiveness for the rider.

Abstract: A method of customizing a blade holder for an ice skate, comprising: (a) providing to a customer a blade holder body being at least partly made of a clear material and comprising a front pedestal with a front inner surface, a rear pedestal with a rear inner surface and a bridge portion interconnecting said front and rear pedestals, the front and rear inner surfaces defining respective front and rear cavities; (b) providing to the customer a plurality of graphical elements; (c) receiving from the customer an indication of a certain graphical element selected from the plurality of graphical elements; and (d) providing one of the front and rear cavities with the selected graphical element such that the selected graphical element is visible through the clear material.

Abstract: A size adjusting mechanism for inline roller skate includes a boot seat, and a toe cap longitudinally movably mounted above the boot seat. An engaging element is controlled by a control element to transversely slide in the boot seat. The control element has a curved inner end contacting with an end of the engaging element, and turnable about an eccentric pivot shaft. A first and a second adjusting element are respectively provided on the engaging element and below the toe cap to normally engage with each other and thereby keep the toe cap immovable on the boot seat. When the control element is turned for the engaging element to engage with a point on the curved inner end farther from the pivot shaft, the first adjusting element is disengaged from the second adjusting element, allowing the toe cap to move relative to the boot seat.

Abstract: Roller shoes in which a roller is installed on a shoe base in a detachable manner comprises a plurality of roller installation grooves formed at the center of the shoe base, a roller axle support inserted into the roller installation grooves, wherein the roller is attached to the roller axle support by a magnetic force, a break mechanism formed at both ends of a middle portion of the front and utmost end of the rear of the shoe base, and a cover mounted in the roller installation grooves. A roller axle support groove formed at both ends of a U shape is inserted in the roller installation groove, and a roller installation part comprising the roller axle is inserted in the roller axle support groove for the roller to be installed in a detachable manner.

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

Abstract: A roller skate includes a shoe body and a wheel portion comprising a front wheel assembly and a rear wheel assembly. The front wheel assembly and the rear wheel assembly can be easily attached to or detached from an underside of the shoe body without tools. The present invention provides a shoe that can be easily converted from a walking or running shoe to a roller skate and vice versa. It is comfortable for the wearer to skate with such roller skate. Moreover, there is no limitation to the size of the roller.

Abstract: An ice skate comprises a horizontal platform and a pair of opposing side brackets perpendicularly secured to an underside of the platform. A pair of opposing extension arms is pivotally engaged with each end portion of the side brackets, and an extender bracket is engaged with a center portion of the side brackets. Each extension arm has a torsion spring confined and arranged to enable the extension arm to pivot about the center axle within a certain range in tandem with the other of the pair of extension arms. A distal end of each extension arm has an axle non-rotatably engaged with a follower rotatably engaged in a vertical plane. Each follower is engaged with a horizontally elongated hole at front and rear end portions of the skating blade, and the extender bracket provides an additional follower engaged with a vertically elongated hole on a centerline of the skating blade.

Abstract: A truck assembly for a skateboard having an inner ring adapted to be attachable to a skateboard deck, and an outer ring adapted to be attachable to an axle extending from the outer ring, wherein the axle is configured to receive at least one wheel. The inner ring and the outer ring rotate relative to one another upon a change in an orientation of the skateboard deck.