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 fourfold linked chain 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 rotation axis makes a solid angle with the vertical middle plane.

Abstract: This sempiternal gymnoplexus with its' innate structural integrity is the nexus of a new skating paradigm which will provide both longitudinal and sinistrodextral support to the talocrural joint during both ice and roller skating maneuvers. This paradigm can accommodate various special rail sliding blocks for extreme skating, braking devices for roller skating, and contoured knife edge blades for ice skating, when the rollers, disks, or cylinders are removed from the plexus. Which will result in an unattainable, before now, a uniquely diversified skating repertoire. This paradigm also supports either hardware or belt mounting of the skaters pedal equipment. The structure also supports the necessary appurtenances that are required for this paradigm shift to be successful for disk, roller, cylinder and ice skaters of various maven levels, on multiterrains.

Abstract: An apparatus and method for preparing a skateboard useful in performing tricks requiring a high degree of tilt. In one embodiment, the present invention involves disposing a riser pad between the deck and the truck assembly unit of a skateboard, attaching a truck assembly unit to a deck having a top surface and a bottom surface. The riser pad is a planar member comprising material selected from the group consisting of rubber, plastic, metal alloy, and combinations thereof. The planar member has four elongated holes disposed therein, through which fasteners for attaching the truck assembly unit can pass.

Abstract: A truck for preventing damage thereto when attached to a skate board and negotiating and contacting a curb. A body attaches to the skate board and an axle extends rotatably through the body and terminates in a pair of wheels, respectively. A roller is rotatably positioned in the body and has the axle extend rotatably therethrough so as to prevent damage to the axle when the truck negotiates and contacts the curb, by virtue of the roller contacting the curb and rotating relative to the axle as the truck negotiates the curb.

Abstract: A rolling device comprises a wheel pair, consisting of two wheels (3a, 3b)affixed to wheel-holders (4a, 4b), which are interconnected by two cross-guides (5, 6) thus forming a parallelogram link chain. One cross-guide (5) is rotatably secured to extension of the platform providing an acute angle between a rotation axis (9a) and the pivot axes (7a, 7b, 7c, 7d) of the four links which constitute the parallelogram link chain. The second cross-guide (6) is secured at the platform extension using a universal joint. One such tilt-steering wheel pair mechanism together with at least one fixed wheel is attached at opposite ends of the rolling device to make it work.

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 replaceable skate assembly includes a boot, a base mounted on a bottom of the boot, and a locking device mounted in the base. The locking device includes a positioning rod, a locking pawl, and a spring. Thus, the base may be assembled on and detached from the bottom of the boot quickly, easily and conveniently, thereby facilitating the user using the replaceable skate assembly. In addition, the bottom of the boot is integrally formed with the boot, without having to additionally provide an aluminum alloy structure on the bottom of the boot, thereby simplifying the procedure of fabrication, and thereby decreasing the cost of fabrication.

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: An improved truck for use with a skateboard or roller skate. The truck has a truck hanger attached to a mounting bracket. The truck hanger has opposed axle elements for mounting a pair of opposed wheels. The truck hanger also has a hanger flange and a hanger pivot. The mounting bracket has a base plate, a pivot bore and a king pin. The truck hanger is affixed to the mounting bracket with the hanger pivot disposed within the pivot bore and with the hanger flange disposed over the king pin. A hanger flange is sandwiched between an inner cushion element and an outer cushion element. Both the inner cushion element and the outer cushion element have an elastomeric outer portion and a substantially rigid liner portion.

Abstract: A klop skate with pushing and pulling capabilities. In one alternate, the skate includes a glide member (110) for traversing a surface. The skate includes a shoe portion (112) for receiving a skater's foot. The skate has a base secured to the shoe portion (112) and underlying the received foot. The skate has a base lever (114) secured to the shoe portion base. The base lever (114) has a forward end portion and a forward base attachment structure (124) defined by the forward end portion. The base lever (114) has a longitudinal base lever axis aligned with a longitudinal axis of the received foot. The skate also includes an elongate frame (116) for mounting the glide member (110). The frame has a longitudinal axis, a forward end portion, and a forward frame attachment structure (136). The skate has a canted hinge (126) for connecting the forward end portion of the base lever (114) to the forward end portion of the frame (116).

Abstract: A detachable roller skate comprises a boot comprising a front cavity, a rear cavity, and an elongate plate interconnected the cavities wherein each cavity has two resilient side protrusions and a rear projection; and a truck comprising a sole plate, an engagement plate threadedly secured to sole plate, a front abutment member on top of engagement plate having a neck and a rear projected member above neck, a rear opening in engagement plate, a front upright projection in rear opening, an internal spring receptacle, a channel extended from rear opening to a rear end of engagement plate, and a push block comprising a front flat, a rear elongated plate, a stop member above flat, two side grooves at stop member, an abutted member on top of stop member, and two side dents at abutted member being perpendicular to and in communication with side grooves. The invention can easily fasten boot and truck or unfasten the same.

Abstract: A roller skate has a frame formed of a short length of sturdy, generally rectangular channel material having two opposed side walls and a sole plate or floor extending therebetween. A large diameter wheel is secured to each end of each side wall, to define a widely spaced rectangular wheel array providing a stable skate platform. The high attachment of the large diameter wheels places the sole plate immediately adjacent the underlying surface when the wheels are resting on that surface, for greater stability. Instep and heel straps extended from single central attachment points along each side wall, with the present skate being essentially longitudinally and laterally symmetrical. Provision may be made for vertical and/or lateral adjustment of the wheels relative to the skate frame, if so desired.

Abstract: A frame for an article of sports equipment, such as a frame for a skate, such as a roller skate, including a front upper portion provided to receive the front portion of a boot, and a rear upper portion provided to receive the rear portion of a boot. The front upper portion and the rear upper portion are part of the same planar upper surface. The frame further includes two cylindrical holes provided to receive two fixing elements, the holes extending in the longitudinal plane of the frame and their respective axes being spaced from one another by a value E of between about 164 mm and 170 mm, more particularly equal to about 167 mm. Moreover, a substantially cylindrical cavity centered on the axis of the cylindrical hole is provided in the upper surface. The invention is also directed to a line of boots for a roller skate and to a line of frames therefor.

Abstract: A roller skate vehicle which includes a standard roller skate frame having two pairs of axle mounted wheels and a padded seat mounted thereon.

Abstract: A truck assembly for a skateboard, having a body for mounting to the underside of a skateboard deck. The body supports an axle and wheels mounted for pivoted movement for steering and includes adjustment means for varying steering characteristics of the skateboard. The axle may be mounted by a pair of opposite trunnions which define a pivot axis for the axle. The pivot axis is adjustable by a rotatable boss, preferably with a pivot arm which may be locked in place by a spring loaded pin inserted into a selected aperture. The truck may include two pairs of angled springs which are arranged similar to adjacent sides of a triangle and adapted to centre the axle. The truck assembly may include a removable spacer locatable between the deck and axle and extension pieces for the axle.

Abstract: A quick-release type axle system for in-line skates is disclosed. A pair of axle shafts cooperate with each other to support a wheel between a pair of frames. A release pin is inserted into a central bore formed through the axle shafts to lock the axle shafts relative to each other. In one embodiment, the release pin is pulled outwardly to release the axle shafts from the locked configuration, whereas in another embodiment, the release pin is pushed inwardly to achieve unlocking of the axle shafts. In some embodiments, a pair of release pins are used to achieve the quick-release mechanism of the present invention.

Abstract: A roller blade of rotation type is disclosed. The present invention provides a roller blade of rotation type which can be used as general shoes by rotating wheel mounting members with the operation of a rotation lever when a user of the roller blade should go up/down the stairs, or go across a crosswalk or an unpaved street and can be used again as a roller blade by rotating the wheel mounting members in a reverse direction after crossing the street. The roller blade having a boot according to the present invention has a frame combined to a sole of the boot; a rotation axle formed at the lower portion of the frame; wheel mounting members combined to both ends of the rotation axle; and a frame supporting member combined to the lower surface of the frame with maintaining a predetermined distance from the lower portion of the rotation axle.

Abstract: A frame for a skate, and a skate having such frame, which includes a lower longitudinally elongated member for supporting the wheels of the skate, a housing at opposite ends of the elongated member, each housing demarcated by a pair of lateral walls between which is assembled a respective wheel mounted on an axle. The elongated member further includes, or has attached thereto between the wheel housings, a lower arc demarcated by an inwardly extending surface with respect to a line defined by the contact points of the two wheels on a planar surface. The arc extends over a length equal to or greater than a third of the distance between the two wheel axles at each of the ends of the elongated member of the frame.

Abstract: A sole plate structure of a roller skate, wherein, a sole plate is integrally formed by injection molding of plastic into a flat and elongate shape, and is provided on both the front and the rear ends thereof with two down protruding blocks; and every such two protruding blocks are placed therebetween a vibration absorbing member, two wheel axle covers are provided for the pairs of the front and the rear wheels on the roller skate to have their respective vibration absorbing members and protruding blocks enveloped, and locked with a bolt extending therethrough, the vibration absorbing members can completely absorb the vibrations induced in skating of the roller skate.

Abstract: A braking apparatus for a skateboard (10) having an axle (36), wherein a braking member (42) is disposed about the axle (36), and is actuated by an actuating device (44) to engage with a wheel mounting assembly (92) of the skateboard (10) so as to effect braking of the skateboard (10).

Abstract: An anti-wear strip equipped wheel seat comprises a main body, an axle, and an anti-wear strip, in which the anti-wear strip is a U-shaped plate made of a wear-resist material, having an arcuate recess in each of two end edges thereof for mounting the axle directly. The axle and the anti-wear strip are embedded stably in the main body except an anti-wear face at the bottom edge of the anti-wear strip and both ends of the axle so that the bottom edge of the wheel seat is protected against wearing, particularly for a technical trick performance or race.

Abstract: A skateboard truck guard, which is adapted for attaching to a truck having a bottom portion and defining a ground contacting surface thereon, includes an elongated guard body, which is shaped and sized for detachably mounting to the bottom portion of the truck, having an outer side and defining a grinding surface thereon, and an inner side for covering the ground contacting surface and a fastening arrangement mounted on the guard body for securely fastening the guard body on the truck.

Abstract: A roller skate: a shoe forming a sole; a rail placed against the sole; first and second wheel truck adapters (“adapters”) each fastened to the sole by a bolt passing through the rail; wheel trucks attachable to the adapters. The bottom surface of the rail is profiled. The top surface of each adapter is profiled to engage the bottom surface of the rail. The adapters when pressed against the rail are rotationally and laterally stabilized but may slide lengthwise along the rail. One fastener secures each adapter to the sole. The relative locations and separations of the fasteners, and the points at which the fasteners penetrate the rail, are determined primarily with reference to the structure of the sole. Adapters are stabilized in angle relative to one another substantially without reference to the distance between them. Adapters may be spaced apart any distance within a range accommodated by a single rail.

Abstract: A child's roller skate; a frame therefor; a method of combining a frame and shoe in a skate: a frame upper portion attachable to a shoe bottom by a bolt and a nut. Means in the frame for accepting, retaining and rotationally stabilizing the inserted nut so that the bolt may be screwed into the nut by pressing it into the nut and turning it relative to the frame, no separate tool being needed to stabilize the nut. A bolt inserted vertically through bore; a nut inserted laterally into a guide. A frame including front and rear support receptacles for rotatably housing front and rear axles, preferably via bearings, one per axle. One support receptacle, preferably both, are formed integrally with the frame. The frame preferably is formed of plastic. A frame lower portion, preferably formed integrally with the frame extends beneath the frame upper portion between the front support and rear receptacles. Brake blocks attachable to frame in same manner as shoe. Reduced weight, height, material, and assembly steps.

Abstract: A detachable roller skate comprises a boot comprising a front cavity, a rear cavity, and an elongate plate interconnected the cavities wherein each cavity has two resilient side protrusions and a rear projection; and a truck comprising a sole plate, an engagement plate threadedly secured to sole plate, a front abutment member on top of engagement plate having a neck and a rear projected member above neck, a rear opening in engagement plate, a front upright projection in rear opening, an internal spring receptacle, a channel extended from rear opening to a rear end of engagement plate, and a push block comprising a front flat, a rear elongated plate, a stop member above flat, two side grooves at stop member, an abutted member on top of stop member, and two side dents at abutted member being perpendicular to and in communication with side grooves. The invention can easily fasten boot and truck or unfasten the same.

Abstract: A tri-wheel skating boot, comprised of a hollow area formed at the bottom in the rear of the truck, a suspended support shaft frame extending forward from the rear of the truck, a laterally disposed shaft tube at the end of the support shaft frame pivoted to a wheel shaft with both ends connected to two rear wheels, a seat at the center above the shaft tube, a recessed trough in the rear truck, a hole at the bottom of the recessed trough to connect through the hollow area below, a connection block between the hole and the seat; a protrusion at the upper end of the connection block to lock it in position relatively to the hole; a spherical surface at the lower end of the connection block to hold against the seat, a screw hole at the top of the connection block; a convexity with a central hole formed in the rear of boot above the truck to be inserted into the recessed trough in the truck and secured with a bolt in the connection block for achieving proper deflection of the support shaft frame to compromise the

Abstract: A skate frame (20) for an in-line skate (18) having a shoe portion (22) and a plurality of wheels (24) capable of traversing a surface. The skate frame includes an elongate structural member comprised of a structural material having a first average density. The structural member having first and second sidewalls (62, 68). The structural member also includes a shoe mounting portion (50) spanning between at least a portion of the upper ends of the sidewalls. The skate frame also includes core material (64) disposed within at least one of the first and second sidewalls or within the shoe mounting portion. In an embodiment of the invention a threaded insert (602) is embedded in the core material of one sidewall, and an aligned tubular insert is installed in the opposite sidewall, such that the wheel axle (612) can be inserted through the tubular insert to engage the embedded threaded insert. In another embodiment, a protective cap (770) protects and/or enhances the appearance of the skate frame.

Abstract: A combined structure of a sports shoe and an in-line skate mainly comprises an in-line wheel device buried in the shoe bottom of a sports shoe. The in-line wheel device comprises a base, whereon a linkage set, a position plate, a wheel position mechanism and a torsion spring are combined in order at both sides by position pins and shaft bars and arrangement at each side is homologous with the other side such that wheels are set among two sides and arranged in in-line state. Besides, a control mechanism is combined to the rear of the base and can control wheels to be unfolded and taken in automatically such that the shoe body combined with an in-line wheel device can take wheels in the sole ordinarily for walking and running, and unfold wheels automatically when the user wants to take skating sport.

Abstract: The disc organizational paradigms which are herein defined, provide novel disc arrangements that can be exploited by skaters to achieve an eclectic range of aerial, nonaerial, complex and routine ambulatory skating maneuvers, with a minimum number of disc for a dynamically stable geometric pattern, thus providing a novel customizing capability for extending a skater's performance repertoire that is not a function of the skater's talent endowment.

Abstract: A skate includes a base, an adjusting member, and a boot including a front portion and a rear portion. The front portion is provided on a front portion of an upper side of the base. The rear portion is secured in place when the adjusting member is in its initial position. When the adjusting member is pushed, the rear portion is adjustable along a longitudinal direction of the base.

Abstract: A quick-release type axle system for in-line skates. A pair of axle shafts cooperate with each other to support a wheel between a pair of frames. A release pin is inserted into a central bore formed through the axle shafts to lock the axle shafts relative to each other. In one embodiment, the release pin is pulled outwardly to release the axle shafts from the locked configuration, whereas in another embodiment, the release pin is pushed inwardly to achieve unlocking of the axle shafts. In some embodiments, a pair of release pins are used to achieve the quick-release mechanism of the present invention.

Abstract: In a roller sport device, particularly a single-track skateboard or a single-track roller skate, having two roller axles disposed one behind the other with single-track rollers which run one behind the other and which are disposed thereon, which axles are disposed on a board or on a supporting frame, the rearmost of the two roller axles (rear axle) can swivel about an axle (steering axle) which points obliquely downwards and forwards and which forms a trailing angle. The running faces of the rollers are curved transversely to the direction of travel and have a high coefficient of friction similar to that of rubber.

Abstract: A roller shoe has a pliable bottom. Rear wheels are independently rotatable about a rear axle recessed in the heel portion. A front wheel is rotatable on a front axle recessed in the arch portion. Both axles are removably yet firmly supported partially recessed within wheel housings. Rolling with front and rear wheels on a flat skating surface holds the forward portion of the shoe bottom clear of the skating surface. Tilting forward onto the front wheel alone allows pivoting while rolling. Tilting farther forward brings the forward portion down to sliding, standing or walking contact with the skating surface. Tilting backward onto the rear wheels alone allows pivoting while rolling. Tilting backward in the extreme brings the shoe heel into sliding or resting contact with the skating surface. Wheels are formed of urethane, axles and bearings of steel, shoe of textile or leather, shoe bottom of resinous or rubber material, and wheel housings of strong plastic such as nylon.

Abstract: A frame particularly usable for in-line or ice skates, comprising two mutually facing approximately vertical walls, transversely to which there are, along the same longitudinal axis, multiple holes for placing the hubs of respective wheels. The frame has, in a transverse cross-section, an oval shape which is closed in the interspace between at least two adjacent wheels.

Abstract: A hidden device in a multifunctional sports shoe comprises a roller mechanism and an actuating mechanism. The roller mechanism is disposed under a bottom sole of the shoe and the actuating mechanism, being attached to the roller mechanism. The roller mechanism further comprises an upper base frame, a lower base frame, and four pairs of cross arms, a roller frame with lined up rollers. The upper and the lower base frames at two longitudinal lateral sides have elongated sliding grooves respectively for these pairs of cross arms slidably moving along. The upper base frame and the wheel seat frame are fastened to the bottom sole on the sports shoe. The actuation mechanism further comprises a shaft disposed next to an end of the upper base frame transversely. A ratchet wheel, two rolling wheels, and a rotary disk with a turning stem are provided on the shaft. A ratchet stop with a press knob engages with the ratchet wheel. The elastic cords join these pairs of cross arms and wound on the rolling wheels.

Abstract: Rolling devices such as roller skates, skateboards, rolling skis, and scooters are known which steer by tilt, but either the wheels do not tilt, or the mechanism is of complex design, or the wheels shift sideways upon tilt. A rolling device shall have tilt-steering wheels which tilt with the device, and which stay in the middle of the platform when steering, and which are cheaply manufactured. This invention comprises a wheel pair, consisting of two wheels 3a, 3b affixed to wheel-holders 4a, 4b, which are interconnected by two cross-guides 5, 6 thus forming a parallelogrammic link chain. The two cross-guides 5, 6 swivel having their swivel axes 9a, 9b oriented parallel to each other providing an angle between the set of swivel axes 9a, 9b and the set of pivot axes 7a, 7b, 7c, 7d of the four links which constitute the chain. The cross-guides are fixed at the device platform using three universal joints.

Abstract: An in-line skate apparatus has a frame for attachment to the sole of a shoe with a pair of outer, substantially flat side faces, a front end, a rear end, and a lower edge. A plurality of wheels are rotatably mounted on the frame in a line from the front end to the rear end of the frame, and a cut out extends upwardly from the lower edge between an adjacent pair of wheels. A separate H-block is releasably mounted in the cut-out so as to substantially fill the cut-out, and has a width at least equal to the width of the frame, so that its outer side faces are substantially flush with the outer side faces of the frame. The H-block has an arcuate, downwardly directed sliding region extending across its width and along at least part of the height of each side face, whereby the sliding region of the H-block includes the only sliding surface of the apparatus during sliding maneuvers.

Abstract: An in-line skate adjustment device comprises a truck, a toe box and a heel with the heel fixed to the front and the rear sections over the truck; two ribs in parallel being provided over the front truck; an insertion rod between the two ribs; two reinforcement wings extending downwards from both sides of the toe box to slide relatively to the ribs; a slide carriage sitting between two reinforcement wings in relation to the insertion rod of the truck; a gear rack and a slot on one side of each the rib of the truck while a corresponding gear rack and a fixation hole on each the reinforcement wing with a bolt being inserted through the fixation hole and the slot; and a nut to press against the two toothed gear racks for adjusting the position of the toe box in relation to the heel and the truck.

Abstract: An in-line skating device of a roller skate has a base which is fastened to the sole of a boot of the roller skate is fastened pivotally with a wheel carrier. The wheel carrier is provided with a plurality of wheels pivoted thereto in sequence. The carrier is formed of at least two pairs of carrying plates. Two carrying plates of each pair are connected in a parallel manner and are pivoted in the longitudinal direction. The wheels are respectively pivoted between the two carrying plates. The pivoting point of two adjoining carrying plates is located on the axle of one of the wheels. When the base turns in relation to the carrier, the carrying plates of one pair displace in relation to the carrying plates of other pair, thereby enabling the wheels pivoted to the carrying plates of one of the pairs to remain in contact with the ground surface so as to enable the roller skate to be started swiftly at a fast pace.

Abstract: A three-wheeled roller skate and method therefore, comprising a substantially shoe-shaped foot receptacle, two heel end wheels rotatably coupled to an axis, and a toe end wheel smaller in diameter than the two heel end wheels and positioned in front of and spaced apart from the toe end of the skater's foot, allowing a user to maximize both stability as well as speed.

Abstract: Four wheel in-line skate, having a half-boot type inner footwear portion and an outer rigid portion made up of a first tip front portion and a second rear portion surrounding ankle and heel. Within the first and second portions are housed the inner footwear portion. The first front portion and the second rear portion of the skate are fixedly coupled each other by a flexible coupling of the lamina or spring kind, provided in correspondence of the underlying portion of the same in such a way to allow their movement and the automatic return to an alignment position. The front and rear portions are provided with vertical elements, perpendicularly provided with respect to the plane of the skate, provided at least partially one within the other, and within each one of couples of vertical elements wheels are provided, connected with the same by pins.

Abstract: A skate body having a first body portion and a second body portion that are releasably secured together. A brake device includes a brake seat mounted to one of the first and second body portions and a brake block. The brake seat includes a resilient hook member and a rib formed on an inner wall thereof. The brake block includes an engaging groove releasably engaged with the rib of the brake seat and a retaining piece releasably engaged with the resilient hook member of the brake seat.

Abstract: An adjustment device, particularly for adjusting the size of an in-line roller skate composed of a frame connected to the wheels and to the heel unit of a shell to which a cuff is articulated. A toe unit for containing an innerboot is slidingly connected with the frame, can be positioned selectively, and can be actuated directly by the user.

Abstract: A skate comprises a base having front and rear base parts which are separated from each other; a boot having front and rear boot parts which are attached to upper surfaces of the front and rear base parts, respectively; a base connector for connecting the front and rear base parts with each other in a manner such that a spacing between them can be adjusted, and for guiding movement of the rear base part with respect to the front base part; a clamper for releasably clamping the front and rear boot parts to each other so that relative movement therebetween is prevented; and front and rear ground contactors detachably joined to lower surfaces of the front and rear base parts, respectively.

Abstract: A roller skate shoe includes a shoe base having two receiving cavities provided thereunder at a front portion and a rear portion of the shoe base respectively, a roller arrangement fittedly received in each receiving cavity including a supporting frame securely mounted on a ceiling of the receiving cavity having a supporting member extended downwardly, a T-shaped wheel frame including a vertical wheel arm rotatably mounted on the supporting member and a horizontal wheel axle for rotatably supporting two wheels at two ends thereof, and a resilient element for applying an urging pressure against the wheel frame so as to normally retain the wheel frame slid out of the receiving cavity, and a locker means for securely locking the wheel frame in a rotatably movable manner selectively between a folded position and an unfolded position.

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: A wheel assembly for a roller skate. The wheel assembly mainly includes a pivotal seat, a singular locking member and a wheel set. The pivotal seat includes a first end pivotally connected to a sole base by a mounting member for convertibly moving between a stowed position and an extended position and a second end rotatably connected to the wheel set for skating. The singular locking member is adapted to optionally position the pivotal seat either in the stowed position or in the extended position. The singular locking member includes a main plate being adapted to structurally engage with the sole base and two teeth being adapted to lock or unlock the pivotal seat either in the stowed position or in the extended position. The wheel assembly further includes a button being adapted to actuate the singular locking member to unlock the pivotal seat.

Abstract: A combined structure of a sports shoe and an in-line skate mainly comprises an in-line wheel device buried in the shoe bottom of a sports shoe. The in-line wheel device comprises a base, whereon a linkage set, a position plate, a wheel position mechanism and a torsion spring are combined in order at both sides by position pins and shaft bars and arrangement at each side is homologous with the other side such that wheels are set among two sides and arranged in in-line state. Besides, a control mechanism is combined to the rear of the base and can control wheels to be unfolded and taken in automatically such that the shoe body combined with an in-line wheel device can take wheels in the sole ordinarily for walking and running, and unfold wheels automatically when the user wants to take skating sport.

Abstract: A training roller skate has rollers or wheels and wheel mounts, at least one wheel mount being movable, preferably in a direction transverse to the wheel axis, to permit contact between a wheel associated surface and a motion inhibitor that inhibits rotary motion of the wheel. The skate has a front shoe part defining a forward platform portion to support a skater's foot and further defining a toe cap support with which a separately formed toe cap is snap-fittedly attached to permit toe caps of alternative shapes and forms to be selectively attached to the toe cap support. The forward platform portion may have an attached brake pad of frictional material that is engageable by a roller, the brake pad being provided integrally with a projection frictionally to engage the ground when the platform is tilted.

Abstract: A suspension system includes a front walking arm assembly on a skate with front and rear wheels. The front walking arm assembly is pivotally mounted on a transverse pivot axle located between the front and rear wheels of the assembly. A standard wheel plane is formed by the axles of the front and rear wheels when the skate is traversing a planar surface, and the walking arm assembly pivot axle is located below the standard wheel plane.