Abstract: The invention relates to a roll sliding device comprising a frame, wheels mounted thereon and a shoe or the like for the user's foot, whereby the shoe or the like is pivotably mounted on the frame in relation to a pivoting axle placed in parallel with the axles of the wheels, and a driving arrangement is provided between the shoe and at least one wheel that is arranged to rotate said wheel with the user's forward turning foot movement around the pivoting axle.

Abstract: A skate includes a shoe body and a skating device, wherein the sole of the shoe body comprises a front part, a middle bow part and a rear part. The skating device is mounted only under the middle bow part. Therefore, the toe of the front part and the heel of the rear part can respectively contact with the ground easily. When the toe of the front part contacts with the ground, the angle A between the plane of the sole and the ground is less than 45°. When the heel of the rear part contacts with the ground, the angle B between the plane of the sole and the ground is less than 45°.

Abstract: A truck includes a chassis attached to a deck of the skateboard, a yoke pivotally connected to the chassis and two wheels provided on the yoke. The chassis includes a rod extended from the underside thereof. The yoke includes a first portion, a second portion extended from the first portion, a third portion extended from the second portion so that the first and third portions thereof are biased and a rod extended from the upside of the first portion thereof. The wheels are provided on third portion of the yoke. A torque spring includes two ends located on opposite sides of the rods. One of the ends of the torque spring engages with the rod of the chassis while the remaining end of the torque spring engages with the rod of the yoke. Thus, the torque spring is loaded and tends to return the yoke relative to the chassis.

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: This is a description of a quad roller skate for use on outdoor surfaces, including a traditional roller skate boot with a stiff sole, with the sole bottom, and the heel bottom being in general alignment with an imaginary horizontal plane. The sole and boot of the skate have opposed side edges with the wheels being positioned in vertical planes spaced from the opposed side edges. The wheels of the quad skate are of such diameter that each wheel apex is at least as high as the imaginary horizontal plane. The wheels can have larger diameters with the apexes being higher than the horizontal plane. A support plate is secured to the sole bottom and the heel bottom. Double action forward and rearward trucks with front and rear axles are mounted to the support plate. The skate has thin lightweight wheels having profiles defining a semicircular surface.

Abstract: An in-line skate having a first pair of rollers rotatably mounted to a first mount and a second pair of rollers rotatably mounted to a second mount. Each mount is pivotally mounted to the skate about a separate pivot axis allowing a single roller to move upwardly or downwardly relative to the surface supporting the rollers while the remaining rollers remain in contact with the supporting surface.

Abstract: A skate assembly has a boot having a substantially completely open base with a sole plate of more rigid material than the boot secured over the open base. The base has an opening extending along at least substantially the entire length of the boot from the heel to the toe, with side rims extending along opposite sides of the base opening. The sole plate may be releasably or permanently secured to the boot.

Abstract: A wheeled skate that includes a skate frame and a plurality of wheels disposed along that frame. A turnable wheel assembly is provided that includes two paired wheels, each supported by a movable axle. The turnable wheel assembly is preferably configured such that the paired wheels maintain a parallel relationship and a fixed distance from one another as the skate moves between varying degrees of turning. This configuration permits the paired wheels to be positioned close together. The axles may be supported by movable support members that move in parallel planes. Various embodiments are disclosed including the incorporation of two turnable paired-wheel assemblies in one skate.

Abstract: A swinging device for a wheel set includes a center tube, an axle pipe and a restrictor. The center tube has round plates at the rear section. The round plates comprise lugs thereon. The axle pipe has a curved receiving base with a pair of fins extending from respective sides of the receiving base. The fins comprise through holes for insertion of bolts. The restrictor is pivotally connected to the rear section of the center tube and comprises ditches corresponding in position to the round plates of the center tube, so that the lugs of the round plates may be placed therein and slide along the ditches. The restrictor further comprises through holes corresponding in position to the through holes of the receiving base and the bolts. An elastic piece made of plastic material is placed between the rear section of the center tube and the axle pipe.

Abstract: A steering assembly for an in-line roller skate having at least two wheels and at least one horizontally rotatable wheel mechanism for steering. Attached under the sole of a boot, are two planar members that coincide to the general shape and size of the sole. The members are flatwise horizontally, centrally rotatable to each other. A linkage mechanism allows horizontal rotational motion to be transmitted from the sole fixed drive planar member, to a front rotatable wheel mechanism mounted on the underside of the base planar member. Characteristic of ice skates, a level oriented rotational motion of the foot steers the direction of the skate. The horizontal boot-to-wheel rotary motion, provides solid, variable steering for controlled turns, while all wheels are in contact with the riding surface. When the skate is not in contact with the riding surface, a flexible alignment mechanism is then free to restore the steering assembly to the straight line motion of the skate.

Abstract: A skateboard truck is presented that includes a kingpin situated between a pivot pin and an axle. The truck includes a base plate, with a pivot pin with a tip pivotally attached with the base plate. An axle having a center point is included, where a pin-axle axis runs from the pivot pin tip through the center point. A kingpin couples the axle with the base plate. The kingpin has a midpoint and a length, with a kingpin axis running the length of the kingpin and through the midpoint. The kingpin midpoint is positioned between the axle and the pivot pin, such that a pin-kingpin axis runs from the pivot pin tip through the midpoint of the kingpin. The pivot pin and the axle are configured such that the pin-kingpin axis is between the kingpin axis and the pin-axle axis, providing the skateboard truck movement about two axes of rotation.

Abstract: An inline skateboard assembly for providing a challenging sport activity includes a generally planar elongated board and multiple rollers coupled inline to an underside of the board. A single or multiple frictional brake members are coupled to the underside of the board.

Abstract: A displacement apparatus is provide for skating footwear such as in-line roller skates. The displacement apparatus has extension triggers, each of which is connected to respective rod members that releasably retain the rollers in a retracted position, and a retraction trigger connected to a slidable rod member that releasably retains the rollers in an extended position. Manual operation of the extension triggers and retraction trigger allows extension or retraction of the in line rollers as required. When retracted, the rollers are conveniently housed within a cavity in the underside of the shoe to thereby allow normal walking.

Abstract: A skateboard includes a deck with two connection members connected to an underside thereof the deck and two trucks are connected to the two connection members respectively. Each truck has a main body and a transverse tube, and two wheels are rotatably connected to two wheel frames connected to two ends of the transverse tube. A truck spring member is received in each main body and has a first recess with which a protrusion on each connection member is engaged. The truck is rotatable about a first pin extending through the main body and the truck spring members, and is connected to the connection member.

Abstract: Skate boot apparatuses, a skate, and a method are provided. A base including an upper face configured to receive a wearer's foot and a lower face configured to structurally support a skate mechanism is provided. An integral upper support is provided, the integral upper support extending upwardly from the base to a point above an ankle of the wearer, the integral support having a varying rigidity decreasing from a high rigidity near the base to a low rigidity near the point above the ankle of the wearer.

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

Abstract: A skate with an adjustable sole plate has a sole plate and a boot mounted on the sole plate. The sole plate has a front body and a rear body. The front body has a locking element mounted on the front body, and the rear body of the sole plate has at least one key formed on the rear body. The key comprises multiple transverse locking holes/slots defined in the key to correspond to different lengths. A person can adjust the length of the sole plate by inserting the locking element of the front body into different transverse locking holes, transverse slots or both.

Abstract: An external wheeled heeling apparatus for walking and running and transitioning to rolling on a surface is provided. The apparatus includes a sole having a forefoot, an arch and a heel portion provided with a first side of the heel portion and a second side of the heel portion. The forefoot operable to engage the surface for walking and running. The apparatus further includes a first wheel operably coupled to rotate adjacent the first side of the heel portion and a second wheel operably coupled to rotate adjacent the second side of the heel portion.

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: In accordance with one embodiment of the present invention there is provided a vehicle with a training device for use on a skateboard. The training device includes an assembly disposed about one of a plurality of axles of the skateboard. The assembly has a transfer gear horizontally moveably to a first position to engage a flywheel wheel to provide resistance to the skateboard and to charge the flywheel when a wheel corresponding to one of the plurality of axles spins, such that when the flywheel is charged the flywheel provides inertia to the wheel. The training device may also be designed to be entirely incorporated with a single wheel for use with in-line skate or scooters.

Abstract: There is disclosed an in-line skate with an adjustable length. The in-line skate includes a heel support, a toe support, a positioning element, a pushing element, and a switch. The heel support includes two parallel transverse grooves near a flank, a cavity near an opposite flank, a longitudinal groove between the transverse grooves and the cavity, and a slot therein. The toe support includes a slide put movably in the longitudinal groove and a series of pockets in the slide. The positioning element includes a button put movably in the cavity and two latches put movably in the transverse grooves of the heel support for entering a selective pair of the pockets of the toe support, thus keeping the toe support in selective one of several positions relative to the heel support. The pushing element is put movably in the cavity for pushing the button and hence the latches. The pushing element defines a tunnel.

Abstract: A steering control mechanism for a kick scooter includes a mounting seat connected fixedly to a front end of a footplate, a wheel seat with a fixed camming element, and an inclined rotating shaft extending through the wheel seat and connected fixedly to the mounting seat so as to allow for rotation of the wheel seat about the rotating shaft. A pressing unit is disposed slidably on the mounting seat, and is formed with a follower unit. A biasing unit biases the pressing unit to move relative to the mounting seat so as to press the follower unit of the pressing unit against the camming element of the wheel seat, thereby turning the camming element toward a central position.

Abstract: A skate (200) having a frame (226) adapted to support a plurality of wheels (228) and a base (214) disposed above the frame. The base includes a platform (280) having a longitudinal rail (282) with a plurality of locking detents (288), and an upwardly extending guide tab (284). A separable semirigid toe cup (216) includes an elongate slit (254) therethrough, and slidably engages the rail of the base, such that the toe cup can be adjusted longitudinally. An angled channel (264) in the toe cup engages the guide tab, such that the width of the slit, and therefore the width of the toe cup, increases as the toe cup is moved to lengthen the skate. In an alternative embodiment of the invention, a threaded post (302) extends transversely through the slit, permitting independent adjustment of the width of the toe cap.

Abstract: An axle assembly for an in-line skate for retaining a wheel and a pair of bearings in a chassis of the in-line skate. The axle assembly has an elongated spacer hub, for supporting a bearing at each end portion thereof; an elongated male coupler, for bearing on a first side wall of the in-line skate chassis; and an elongated female coupler, for bearing on an opposing second side wall of the in-line skate chassis. The male and female couplers are insertable inwardly through axle bores of the chassis then through opposite ends of the spacer hub to obtain an assembled condition in which the wheel and pair of bearings are retained in the chassis. The male and female couplers are provided with means for interlocking with each other when in the assembled condition, to prevent outwardly movement of the couplers.

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 skate truck assembly apparatus provides a hanger engaging separate left and right collinearly aligned axles, and at least three pairs of suspension bushings, with one selected pair of said bushings appropriate to a chosen dynamic load, secured by a kingpin; a base receiving the kingpin in adjustable engagement, thereby mounting the hanger and the at least one suspension bushing in flexible securement on the base; a pivot rod engaged with the hanger and extending therefrom into a rod recess within the base positionally distant from the kingpin.

Abstract: A steerable inline skate which allows user to change direction more easily and reduce the abrasion of wheels to thus lengthen the life of the wheels by allowing front and rear wheels 30 and 50 among a plurality of wheels arranged in a line to be steered within a predetermined angle utilizing the structure of a trapezoidal linkage.

Abstract: A skateboard truck assembly that eliminates wheel bite without sacrificing the turning responsiveness thereof. The truck assembly includes a plurality of set screws disposed in the ring-shaped member of the hanger adjacent to the kingpin. The longitudinal axis of the plurality of set screws is generally parallel to the axle and generally perpendicular to the longitudinal axis of the kingpin. The distances between the plurality of set screws and the kingpin, adjustable by the user, determines the amount of wheel bite prevention. When the hanger pivots through an angle and causes a set screw to contact the kingpin, further pivoting of the hanger stops. In a further feature the shaft of the kingpin includes a plurality of flat surfaces adjacent to the plurality of set screws.

Abstract: The two skates steered by leaning sideways normally curve along circles of similar curvature. As the two circles are offset by the legs' distance they intersect. In order to avoid this disadvantage it is desirable that the outer leg's curved track has a larger radius than the inner leg's curved track. Using lean-controlled steered skates with tiltable wheels comprising a parallelogram closed fourbar linkage including two horizontal cross-guides the purpose is achieved by affixing the two cross-guides rotatably to extensions of the frame in such a way that the vertical projection of the rotation axis makes a solid angle with the vertical projection of the pivot axes of the closed fourbar linkage.

Abstract: The Skateboard Truck Mounting System is a mounting system for the attachment of a skateboard wheel truck to the deck of a skateboard. This system provides quick and easy adjustment to incrementally reposition a skateboard wheel truck assembly in a number of predetermined locations along the length of underside of the skateboard deck. This system may be utilized on new or existing decks to achieve personalized sizing and performance characteristics for a skateboard rider.

Abstract: An external wheeled heeling apparatus for walking and running and transitioning to rolling on a surface is provided. The apparatus includes a sole having a forefoot, an arch and a heel portion provided with a first side of the heel portion and a second side of the heel portion. The forefoot operable to engage the surface for walking and running. The apparatus further includes a first wheel operably coupled to rotate adjacent the first side of the heel portion and a second wheel operably coupled to rotate adjacent the second side of the heel portion.

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: A retractable skate and method using armatures that extend for skating and retract for walking. It is preferred that the armatures may be locked into position. It is also preferred that the armatures fasten to a pair of wheels, a frame holding a configuration of wheels, or an ice blade.

Abstract: A slide plate having a front slide piece is adapted to engage the outboard side of a skateboard truck. The front slide piece is made from a hard material adapted to slide over an obstacle surface and to protect the outboard surface of the skateboard truck from damage and by adding distance, keep soft wheels from contact with obstacles during maneuvers.

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: Connecting mechanisms for pivotally coupling a shoe with a sporting device are described. In one embodiment, the connecting mechanism can include a support element for supporting a shoe, a connecting element disposed on a sporting device, and a coupling element for coupling the support element to the connecting element. The support element can include a first end liftably disposable on the sporting device and a second end spaced apart from the first end. The coupling element can include a first end attachable via a first pivot to the second end of the support element and a second end attachable via a second pivot to the connecting element. The first and second pivots can be active successively with the progression of a bending movement of a foot in a shoe supported by the support element.

Abstract: A wheeled skate includes a shoe cradle for receiving a user shoe, the shoe cradle having opposing first and second shoe cradle sides; a wheel mounting structure; a wheel mounting structure elevation mechanism interconnecting the shoe cradle and the wheel mounting structure including for selectively elevating and lowering the shoe cradle relative to the wheel mounting structure; and an annular wheel rotatably mounted around the wheel mounting structure.

Abstract: A truck with a discrete shield for skateboards and the like is described. A base has at least one truck assembly affixed to the underside thereof that mounts wheels. The truck assembly defines a lower surface between the wheels that is susceptible to damage. A discrete sheet of material has a smooth, low-friction surface and is formed to encircle portions of the truck assembly so as to hold the sheet of material in a fixed position underlying and covering the lower surface of the truck with the smooth, low-friction surface directed downwardly.

Abstract: A skateboard axle assembly includes a base attached to the underside of a skateboard, and a hanger which supports the axle. The hanger is connected to the base by a bolt and two nylon washers that permit a slight motion of the axle with respect to the base when the skateboard user makes a turn. In addition a small stud mounted on the hanger screws into the base an adjusted depth to adjust the clearance between the wheels and the skateboard.

Abstract: A steerable roller skate includes: a sole member of a skate boot or fastening strap of roller skate having a pair of rear wheels transversely rotatably secured to a rear bottom portion of the sole member, a steering base steerably secured on a front bottom portion of the sole member, a pair of front wheels transversely rotatably secured on the steering base, a first circular magnet secured on a central bottom portion of the sole member, and a second circular magnet secured on the steering base adjacent to the first circular magnet having opposite magnetic polarities of the first and second circular magnets for normally attracting the second magnet to the first magnet with a greater magnetic attractive force between the first and second magnets for efficiently magnetically restoring the steering base and the front wheels for automatically resetting a straightforward orientation of the roller skate.

Abstract: A size-adjustable in-line skate having a base carrying a plurality of wheels thereon. An upper is secured to a top surface of the base and defines a heel portion, a toe portion, and diametrically opposed side wall portions. The upper is supported by a support structure that includes a heel cup and a toe cup. The toe cup is secured to the toe portion of the upper and slideably coupled to the base so that the toe cup can slide longitudinally with respect to the base. An actuator is coupled to the toe cup and travels therewith. When the actuator is translated, engagement members on the actuator disengage with detents on the base to allow the toe cup to freely slide between longitudinal positions to adjust the shoe size of the skate.

Abstract: A roller skate shoe includes a shoe body and a roller mechanism. The roller mechanism is consisted of a housing, a roller, a roller axis, press rods, elastic members and a butting assembly. An accommodating chamber is disposed below a rear end of an insole of a shoe body, and the rear end of the insole is disposed with an insertion opening penetrating a rear end of the accommodating chamber, thereby placing the roller mechanism in the accommodating chamber. To put the aforesaid structure in use, the roller is extended or retracted through actions of the butting assembly and the elastic members of the roller mechanism, thereby providing a user with choices of using the roller skate shoe for skating or walking.

Abstract: A skate with a main skate frame, a skate boot, and a carriage frame pivotally coupled to the main skate frame. At least one ground engaging member, such as a wheel or a runner blade, is coupled to the carriage frame for pivoting therewith. The main skate frame can pivot laterally, dorsally, or both laterally and dorsally relative to the carriage frame. Lateral pivoting can be achieved, for example, with a lateral pivot shaft or with an arcuate passage with a plurality of axles that also enable dorsal pivoting.

Abstract: An in-line skate composed of an inner boot connected to an outer boot at a pivot point near the toe. Mounted between the inner and outer boots springs under the heel area, used to limit and dampen the shock and vibration transmitted to the skater. The inner and outer boots contain mating holes in the upper heel area, for the engagement of a locking pin. Freeing the boot sections decompresses the springs and allows them to function as shock absorbers. The locking pin has an enlarged end that is sized to move freely in the inner boot portion of the hole yet be retained by the smaller stop portion defined by the outer boot mating hole. The wheel frame has a section for the retention of the majority of the wheels, and a section for the retention of a pivoting wheel. The pivoting wheel frame contains internally lubricated ball bearings for ease of movement while pivoting.

Abstract: An inline roller skate with a foot receiver, such as a shoe, and with a frame with rollers which is provided on this foot receiver. These rollers, and their axles, are removably mounted on the frame by means of a quick-acting closure.

Abstract: An adjustable in-line skate has a rigid frame, a plurality of wheels rotatably secured to the frame in a line, a sole plate secured to the frame having a heel portion and a toe portion, and a boot mounted on the sole plate. The boot has a toe shell and a separate heel shell. The heel and toe shells are each adjustably secured to the sole plate for adjustment of the overall length of the boot, so that two separate adjustment points are provided.

Abstract: An in-line skate includes a skate frame, front and rear wheels mounted rotatably on the skate frame, and a middle wheel assembly including at least two middle wheels, each of which is mounted rotatably on the skate frame between the front and rear wheels, is aligned with the front and rear wheels, and is rotatable about a rotation axis defined by the middle wheel. Each middle wheel further defines a wheel center and an inclined plane that passes through the wheel center and that is perpendicular to the rotation axis. The inclined plane is inclined relative to a vertical plane perpendicular to a ground plane by an acute angle. The front and rear wheels are inclined in the same direction as the middle wheels.

Abstract: A roller skate frame assembly includes a frame body with front and rear shoe-mounting plates that are formed with fastening holes, a pair of fastening units, and a bracket with front and rear mounting units, each of which has a first part secured to a shoe, and a second part formed with a fastening hole and secured to a respective one of the front and rear shoe-mounting plates through a respective one of the fastening units which extends through a pair of the fastening holes in the second part and the respective one of the front and rear shoe-mounting plates.

Abstract: There is provided an in-line roller skate frame, consisting of a main frame (which connects directly to the skate boot) and a pair of bogeys which pivot within the mainframe on transverse axes. Each bogey will hold a pair of wheels, one outer wheel and one inner wheel per bogey. Each bogey will be acted on by a return spring, actuating when there is no weight being applied to the wheels & pivoting the bogey such that the outer wheels descend and the inner wheels ascend. At full rotation, said bogeys will have pivoted to an extent that the inner wheels do not protrude below the side wall members of the main frame.

Abstract: A roller skate frame assembly includes a frame body with front and rear shoe-mounting plates that are formed with fastening holes, a pair of fastening units, and a bracket with front and rear mounting units, each of which has a first part secured to a shoe, and a second part formed with a fastening hole and secured to a respective one of the front and rear shoe-mounting plates through a respective one of the fastening units which extends through a pair of the fastening holes in the second part and the respective one of the front and rear shoe-mounting plates.