Abstract: A roller board has axles provided with castors and secured at the front and rear ends of a board deck such that a steering movement is transferrable to the axles by a person on the board deck by lateral shifting of weight. Steerability and problem-free operation are improved. Substantially rigid booms, one directed to the front and one directed to the rear, are provided at the front and rear ends of the board deck, respectively. A support arm pointing in the direction of the central axis of the board deck is rigidly fastened to each boom. The support arms are pivotable on the two sides about a pivot axis inclined in the direction of travel by 40° to 50° relative to the plane of the board deck. The axle of a single castor is mounted rotatably in or on each hub, with the pivot joint inside the castor.

Abstract: Utility arm apparatuses for securement to a kingpin of a fifth wheel coupling of a trailer and related methods are provided herein. A utility arm apparatus can include an elongate body having an attachment end and a utility end. The attachment end can include a recessed portion for receiving a neck portion of a kingpin of a fifth wheel coupling secured to the trailer such that the utility end extends outward from the kingpin past an end of the trailer. The utility arm apparatus can further include a utility device secured to the utility end of the elongate body such that the utility device is positioned past the end of the trailer when the attachment end of the elongate body is secured to the kingpin.

Abstract: A powered exoskeleton includes a leg part and a foot part. The foot part includes a foot bottom plate and a foot bottom plate driving wheel. The foot bottom plate includes a first surface and a second surface opposite to each other; and the foot bottom plate driving wheel is connected below the leg part. The foot bottom plate is movably connected to the foot bottom plate driving wheel and capable of being turned over relative to the foot bottom plate driving wheel. In the walking mode, the foot bottom plate is turned over till the first surface of the foot bottom plate faces upward and is connected below the foot bottom plate driving wheel; and in the wheeled movement mode, the foot bottom plate is turned over till a second surface of the foot bottom plate faces upward and is connected above the foot bottom plate driving wheel.

Abstract: A protective cover for an article of footwear can include a first portion covering the top and sides of the footwear and a second portion covering the back of the footwear. The first portion can include locations to receive at least part of a connecting mechanism, and the second portion of the cover can be connected to the first portion of the cover by the connecting mechanism.

Abstract: A roller mounting apparatus for an in-line roller skate blade comprises a body having a footware connector portion, a spacing portion adjacent the footware connector portion and a roller mounting portion adjacent the spacing portion. The roller mounting portion has roller mounts for mounting a plurality of rollers in tandem spaced apart positions such that contact points on outer surfaces of the rollers will lie on a first common curved line having no portion with a radius of curvature more than about 10 m, so that a contact point on a surface of a roller immediately adjacent to any given roller is spaced apart between about 0.1 mm to about 13 mm from a line tangent to the curved line at a point defined by the contact point of the given roller. A roller blade comprising the roller mounting apparatus is also disclosed.

Abstract: Mixed magnetic powders for making a magnetic core or body is disclosed, wherein the mixed magnetic powders comprises: a first magnetic powder; a second magnetic powder, wherein the first magnetic powder and the second magnetic powder are made of a same soft magnetic material, wherein the ratio of the D50 of the first magnetic powder to the D50 of the second magnetic powder is in the range of 5 to 12, wherein the first magnetic powder weighs 50 to 90 percent of the total weight of the first magnetic powder and the second magnetic powder; and the second magnetic powder weighs 10 to 50 percent of the total weight of the first magnetic powder and the second magnetic powder.

Abstract: Described herein is a sports board for gliding over a surface. The board includes an upper structural layer having an outer surface, a lower structural layer, a core having an upper surface substantially covered by the upper structural layer and a lower surface substantially covered by the lower structural layer. The board also includes a deformable element covered by the core on an upper surface. A first portion of the deformable element protrudes a distance beneath the lower structural layer towards a horizontal plane of the surface underlying the sports board. The board also includes a base element substantially covering the lower structural layer and the deformable element and an edge component positioned at least in part around a perimeter of the base element. At least a portion of the deformable element can deform upon application of an amount of pressure against the base element.

Abstract: The purpose of this invention; herein the Amphibious Board; is to allow a person to transition from a body of water to land & vice versa. The method attributable to provide enough energy is derived from a person or rider, holding a controllable kite utilizing the power of the wind. Once standing in the foot the bindings, the rider would be able to steer the Amphibious Board with the aid of the fins located on the bottom of the board in the water; and the rollers would allow the rider to access the land.

Abstract: A footwear product (10) with a selectively retractable skating mechanism (30) that permits a user to selectively change from WALK to SKATE. Mechanism (30) includes two coaxially disposed elongated rail assemblies (40; 60) conforming to each other and snuggly fitted to allow them to slide and cammingly deploy and retract wheel assembly (80) that protrudes outwardly in the SKATE position. Upper rail assembly (40) is totally housed within the sole assembly (20) in the WALK position.

Abstract: An inline skate is provided with a boot including a sole; a frame; a closure member; wheels arranged in a straight line on a bottom of the frame; two opposite male sockets disposed on both sides of a rear portion of the frame respectively, each male socket including a rear aperture; two side wheel assemblies each including a wheel mount, a wheel member in the wheel mount, and a female socket extending out of the wheel mount to complimentarily dispose in the male socket and having a rear aperture member; and two spring depressible detents mounted in the female sockets respectively and each including a ball at an end. In a locked position, the ball protrudes out of the aperture member to partially pass through the aperture.

Abstract: A ski is provided and includes a ski front portion, a ski rear portion, a ski middle portion having a ski side, at least one ski blade portion, wherein the ski middle portion connects the ski front portion with the ski rear portion and wherein the at least one ski blade portion extends out of the ski side, a plurality of main roller elements, and a plurality of blade roller elements. The plurality of main roller elements are associated with the ski front portion, ski rear portion and ski middle portion and are configured to extend downward from the ski front portion, ski rear portion and ski middle portion. Moreover, the plurality of blade roller elements are associated with the at least one ski blade portion and configured to extend downward from the at least one ski blade portion.

Abstract: The described roller skate is essentially composed of a boot, to the sole of which the plate of a roller carrier element is detachably connected with screws penetrating the through holes. The screw holes are located on both sides of the vertical symmetry axis on the center longitudinal line. Bearing blocks and are connected to the underside of the plate via a web extending in the longitudinal direction. The floating axles of the inline rollers and of the outer rollers are inserted in bores through or through. The bearing blocks and with their different bores through or through are likewise embodied and arranged in a mirror symmetrical manner with respect to the vertical center line. The explained symmetry of the roller carrier element makes it possible for it to be used for the left and right roller skate.

Abstract: An improved braking system is disclosed in which a pair of conical braking members engage a pair of skate wheels through vertical movement of a pushrod that is actuated by movement of the skater's foot within a cuff. The braking members are separated by a spring disposed on an axel to maintain the braking members in optimal braking position. The braking members are serrated to promote frictional contact with the wheels, and a disk is positioned on the axel to act as a clutch to control the braking force.

Abstract: A wearable device configured to selectively provide roller transportation, the wearable device including a shoe, a plurality of wheel assemblies, each wheel assembly being configured to selectively roll relative to a ground surface about an associated axis of rotation, and a frame connected between the wheel assemblies, the frame comprising a trunk and a plurality of branches extending from the trunk, each of the branches being configured for connection to at least one of the plurality of wheel assemblies, wherein at least a portion of the shoe is located vertically higher than at least a portion of the frame when at least one of the wheel assemblies is in contact with the ground surface and the at least one of the wheel assemblies is positioned to selectively roll relative to the ground surface.

Abstract: The present invention relates to a street board comprising first and second footrests, a front pivot connection part, and first and second driving links. The first and second driving links are rotatably pivoted to the first and second footrests, respectively and the first and second driving links are rotatably pivoted to each other by the front pivot connection part. The front pivot connection part includes a front angle limit part that can limit an angle formed between the first and second driving links within a predetermined range. The above-described street board is easier to ride compared with conventional street boards.

Abstract: The present invention relates to cast polyurethane elastomers of high resilience, clarity, and attractive abrasion resistance derived from polyurethane systems comprising a customized selection of polycaprolactone polyol incorporated into the isocyanate and/or isocyanate-reactive composition.

Abstract: A skate having a detachable assembly comprising a use element selected from an ice skate blade, a roller skate assembly and an in-line roller skate assembly. The skate includes a shoe having a protrusion extending from the sole and into locking engagement with a corresponding socket in the detachable assembly. The protrusion including a cavity with a lateral recess which receives a corresponding engaging member of a coupling member disposed partially in the socket. The coupling member includes an actuating member selectively movable between a locking position where the engaging member is biased radially outwardly into engagement with the lateral recess, and a release position where the engaging member biased radially inwardly out of engagement with the lateral recess.

Abstract: An exemplary embodiment of the present invention includes a first coupler device configured to couple to the frame of an in-line skate. The first coupler device includes a linear portion and an angled portion where the linear portion and the angled portion have different lengths. The linear portion includes a first hole configured to couple to the frame of the in-line skate and the first hole is located near the end of the linear portion that is opposite the angled portion. The linear portion includes a second hole located at an area where the linear portion meets the angled portion. The angled portion has an angle greater than zero and includes a third hole near the end of the angled portion that is opposite the linear portion.

Abstract: A wheeled sport item, such as a roller ski or a roller skate, is suited to be applied to the foot of a user in order to allow the foot to slide in relation to the ground according to a movement direction parallel to the foot. The sport item includes an elongated body associated with two wheels; a platform associated with the elongated body, defining a supporting surface for the foot; and a brake for braking the wheels. The item also includes a connector for connecting the platform to the elongated body, which defines a rotation axis orthogonal to the supporting surface, in order to allow a rotation of the foot, and a controller sensitive to the rotation of the foot for the operation of the brake.

Abstract: A skate having a detachable assembly comprising a use element selected from an ice skate blade, a roller skate assembly and an in-line roller skate assembly. The skate includes a shoe having a protrusion extending from the sole and into locking engagement with a corresponding socket in the detachable assembly. The protrusion including a cavity with a lateral recess which receives a corresponding engaging member of a coupling member disposed partially in the socket. The coupling member includes an actuating member selectively movable between a locking position where the engaging member is biased radially outwardly into engagement with the lateral recess, and a release position where the engaging member biased radially inwardly out of engagement with the lateral recess.

Abstract: Disclosed is an aesthetic and functional skating boot for roller skates, ice skates or inline skates having a lace-less cowboy boot outward appearance. From the exterior, the skate boot resembles a slip-on cowboy boot, comprising a continuous vamp region connecting to a quarter region that provides stability for the user's ankles or alternatively shrouds an internal lacing structure. A skate wheel or blade frame is affixed to the boot outsole and heel lift, connecting to at least two regions of the boot for support of the frame. Interior ankle support within the boot quarter comprises either increased ankle padding or alternatively an internal tongue and lacing structure, similar to a standard pair of laceable skates. Further disclosed is a rear brake or wheelie bar mounted to the boot in the style of a boot spur. The boot provides a fashionable exterior with adequate ankle support, preserving their functional performance.

Abstract: The present invention relates to a roller ski or board, said ski or board providing in-line central rollers, centrally provided on the ski or board body, and two pairs of additional rollers, respectively a front pair and a rear pair, said pair of rollers being raised with respect to the ground on which ski or board rests when the same ski or board is substantially parallel with respect to the ground, and contacting the same ground when ski or board is inclined, each one of the additional rollers is coupled with the ski or board by a support system comprising a fork, having one end coupled with the roller and the other one faced toward the ski or board, between the end of the fork faced toward the ski or board and the same ski or board being provided with a resilient element.

Abstract: An exemplary embodiment of the present invention includes a first coupler device configured to couple to the frame of an in-line skate. The first coupler device includes a linear portion and an angled portion where the linear portion and the angled portion have different lengths. The linear portion includes a first hole configured to couple to the frame of the in-line skate and the first hole is located near the end of the linear portion that is opposite the angled portion. The linear portion includes a second hole located at an area where the linear portion meets the angled portion. The angled portion has an angle greater than zero and includes a third hole near the end of the angled portion that is opposite the linear portion.

Abstract: In-line roller skate (1) comprising in-line wheels (2) around which travels an endless rolling support (4) of the belt type, having regular transverse notches (40). At least the rear wheel (24) is mounted in such a way as to allow horizontal sliding, and at least the front wheel (9) is mounted in such a way as to allow inclined forward sliding along an elongate slot opening (12) formed in the side walls (13, 14) of the frame (6), so that the tension in the rolling belt keeps the axis of rotation (5) of the wheel at the bottom end of the slot. At least one element (27) is in rolling bearing contact with the lower portion of the rolling belt. This belt is preferably cylindrical in section, with its inner surface (28) housed in mating grooves (3) around the perimeter of the wheels. The skate may include a stone guard (45).

Abstract: In-line roller skate (1), in particular racing skate, comprising a pair of side frame elements (5a, 5b), joined to each other by at least a transversal frame element (5c), between which a front wheel (7a), a rear wheel (7d) and at least two intermediate wheels (7b, 7c) are pivotally mounted, and a skate boot (3) provided with a sole (3a), said boot being fastened to said frame through a fastening portion (9), wherein said fastening portion (9) is located between said sole and said frame in a substantially central region (F) in the longitudinal direction between said front and rear wheels.

Abstract: Disclosed is an aesthetic and functional skating boot for roller skates, ice skates or inline skates having a lace-less cowboy boot outward appearance. From the exterior, the skate boot resembles a slip-on cowboy boot, comprising a continuous vamp region connecting to a quarter region that provides stability for the user's ankles or alternatively shrouds an internal lacing structure. A skate wheel or blade frame is affixed to the boot outsole and heel lift, connecting to at least two regions of the boot for support of the frame. Interior ankle support within the boot quarter comprises either increased ankle padding or alternatively an internal tongue and lacing structure, similar to a standard pair of laceable skates. Further disclosed is a rear brake or wheelie bar mounted to the boot in the style of a boot spur. The boot provides a fashionable exterior with adequate ankle support, preserving their functional performance.

Abstract: The present invention relates to an inline frame (1) for an inline skate, designed to mimic the properties of an ice hockey skate blade on ice. The inline frame (1) includes at least one first connection part (8) intended to be connected to a boot (2) and at least two wheels positioned essentially in the inline frame's (1) longitudinal direction. The unique thing about the inline frame is that it includes an upper chassis section (5) and a lower chassis section (6) which via a coupling element (7) are arranged to be rotatable in the inline frame's (1) longitudinal direction, and that the upper chassis section (5) includes at least one first contact surface (11) and that the lower chassis section (6) includes at least one second contact surface (19), where at least one of the first contact surface and the second contact surface is curvilinear.

Abstract: The invention relates to a roller skate (2), in particular an inline roller skate, comprising a plurality of rollers (4, 6, 8, 10). In order to simplify braking and to improve the dosage of the braking force and the driving stability of essentially inline roller skates during braking, the roller skate (2) comprises a first frame part (12), which is or can be rigidly connected to a shoe and in which at least one of the front rollers (4, 6) is rotatably mounted, a second frame part (14), in which at least two rear rollers (8, 10) are rotatably mounted, the two frame parts (12, 14) being pivotable about a pivoting axis (24) which is parallel to the rotational axes of the rollers (4, 6, 8, 10), and a braking element (34) that can be pressed against at least one of the rear rollers (8, 10) during pivoting of the two frame parts (12, 14) relative to one another.

Abstract: Size-adjustable footwear includes a body in which first and second insoles are received, the insoles being nested together and one upon another with both extending to generally cover the length and width of the sole of the footwear body. A first insole has a re-entrant section for partially enclosing at least part of the periphery of the forefoot of a wearer and includes a first toe cap, and lateral and medial flanges integral with the first toe cap. The second upper insole includes a reentrantly shaped second toe cap and a heel cup in which a first longitudinal dimension, between the heel cup and the second toe cap, defines a first size, and a second longitudinal dimension, between the body heel and the first toe cap, defines a second size larger than the first size. A user may select footwear based on the smaller first size, and then remove the first and then the second insole to accommodate growth of the feet.

Abstract: An apparatus for operating a roller up and down is provided, which includes a main body fixed to a bottom of a shoe, an operating body to which the roller is imbedded, which is slidably mounted within the main body, and an operating assembly to move the operating body within the main body between an operating position and a non-operating position, wherein the roller protrudes out from the main body in the operating position while the roller is retracted into the main body in the non-operating position. A wearer of a shoe is capable of shifting the shoe between an operating position in which the roller protrudes out from the bottom of the shoe and a non-operating position in which the roller is retracted into the bottom of the shoe, by a simple operation. Accordingly, the shoe can be used as a roller shoe when the roller is in the operating position, and used as a general walking shoe for everyday use when the roller is in the non-operating position.

Abstract: A skate comprises a soleplate member including a heel support and a toe support overlapping and adapted to slide with respect to the heel support in a longitudinal axis and fixed in a desired position as to achieve a desired length of the soleplate member; wherein the toe support includes first and second teeth spaced from each other; and an adjustment unit including teeth adapted to selectively wedge with the first teeth and a wedging end adapted to selectively wedge with the second teeth.

Abstract: A non-motorized Riding Vehicle for transport of a rider on a surface. The Riding Vehicle includes a shoe body or platform for supporting at least one foot of the rider during the transport and at least one Riding Element under the shoe body or platform that rotates on an axle to facilitate the transport while supporting the rider. The at least one Riding Element includes stimulating elements for creating a periodic vibration during the transport that makes the transport on the surface less smooth than the transport would be if the at least one Riding Element did not include the stimulating elements. Also, a kit and method for converting the Riding Vehicle to a Riding Vehicle with a more or less (intense) vibratory ride.

Abstract: The present invention provides a kind of skate, including a boot and a skating device connected to the boot, wherein the skating device is arranged along the width direction of the boot. The skate further includes a skating device mount for mounting the skating device to the boot, wherein the skating device can rotate 360 degree under the boot. The transverse skating device under the boot enables the sideward sliding direction, which bring more fun to the skaters. When the skating device is rotated to an angle and locked, the skate can slide inclinedly, which bring more challenges to the skaters. The skating device can rotate 360 degree freely or rotate different angle from two boots under the boot, which can cancel the shift of the knock-knee. The skating device can also be adjusted to be in line on the longitudinal direction as a traditional roller skate or ice skate.

Abstract: The present invention relates to a street board comprising first and second footrests, a front pivot connection part, and first and second driving links. The first and second driving links are rotatably pivoted to the first and second footrests, respectively and the first and second driving links are rotatably pivoted to each other by the front pivot connection part. The front pivot connection part includes a front angle limit part that can limit an angle formed between the first and second driving links within a predetermined range. The above-described street board is easier to ride compared with conventional street boards.

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: The present invention refers to a skate with in-line rollers or ice-skating blades, comprising: a boot provided with a sole comprising a heel portion, a central portion and a toe portion; a chassis acting as a support for said sole to rest thereupon, and including a first carriage and a second carriage that are capable of moving relative to each other and adapted to support at least a front roller or blade and at least a rear roller or blade respectively; the first carriage comprises a first plate for said heel portion to rest thereupon, from which there extends towards the front portion of the skate a first arm that is adapted to support at least said front roller or blade, and the second carriage comprises a second plate for the toe portion to rest thereupon, from which there extends towards the rear portion of the skate a second arm that is adapted to support at least said rear roller or blade; the first and second carriages overlap each other approximately at the central portion of the sole.

Abstract: A skate includes a lower base, an upper base adjustably mounted on the lower base, and a control knob mounted on the lower base and detachably locked onto the upper base. The upper base has a slide provided with a plurality of locking teeth. The control knob is movably mounted in the lower base and has a first end provided with a support and a second end provided with a press button protruding from the lower base. The support of the control knob has a locking groove detachably locked on one of the locking teeth of the upper base.

Abstract: A skating and boarding system includes a mounting adapter and interchangeable components which may include roller skating wheels, ice skating blades, and mini-skis. These various components are typically mounted on the bottom of the boot such as a ski boot although they may also be mounted on the bottom of a board such as a typical skate boarding board. In addition to the interchangeability concept, an ice skate is disclosed which utilizes wheel-shaped blades, as well as several embodiments of a ski skate and a skiing board with a mini-ski mounted thereon.

Abstract: In-line roller skate (1), in particular racing skate, comprising a pair of side frame elements (5a,5b), joined to each other by at least a transversal frame element (5c), between which a front wheel (7a), a rear wheel (7d) and at least two intermediate wheels (7b,7c) are pivotally mounted, and a skate boot (3) provided with a sole (3a), said boot being fastened to said frame through a fastening portion (9), wherein said fastening portion (9) is located between said sole and said frame in a substantially central region (F) in the longitudinal direction between said front and rear wheels.

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: Configurations of an inline roller skate comprising a base, wheels, and at least one rocker pivotally mounted to the base and receiving at least two of the wheels. In accordance with one aspect, the inline roller skate further comprises a bias element positioned between the rocker and the base and biasing the rocker to an equilibrium position relative to the base. In accordance with an other aspect, the inline roller skate further comprises a rocker stop made integral to the base and defining a limit to the pivoting movement of the rocker in one angular direction by abutment therewith. In accordance with an other aspect, the inline roller skate further comprises a brake made integral to the base and having a concave frictional surface with an inversed-V shape.

Abstract: In-line skates, frame assemblies and assemblies for modifying in-line skates are provided. A representative assembly for modifying an in-line skate includes a grinding member configured for removable attachment to an in-line skate frame. The grinding member has a grinding sidewall and a grinding base, with the grinding base extending outwardly from the grinding sidewall. When the grinding member is attached to the frame, the grinding sidewall is positioned in an overlying relationship with respect to the first sidewall of the frame and the grinding base spans between the first and second sidewalls along the bottom of the frame.

Abstract: An in-line skate which includes a plurality of wheels mounted to a frame each having a primary contact surface which contacts a skating surface to support the skater when the skate is in a generally upright position, and at least one secondary rotatable contact surface disposed at a level above the primary contact surfaces when the skate is in a generally upright position and positioned to contact the skating surface only when the in-line skate is inclined beyond a selected angle from the vertical. The length of the wheelbase formed by the secondary contact surface is shorter than the length of the wheelbase formed by the primary contact surfaces. By effectively changing the length of the wheelbase of the in-line skate when the in-line skate is at a certain angle from the vertical, a tighter turning radius may be achieved.

Abstract: The Nu-Skate Hub Insert serves as a stylish colorful mount with a Spin Wheel Attachment for a roller skate wheel. It's fashionable and interchangeable to coordinate the designs and colors with skate covers (Re-New a Skate Cover). Some Hub Inserts are made of thin metallic chrome, bronze, and gold plates shaped to conform to the inside of the wheel. The Hub Insert has a hole, which allows it to be placed over the axle and secured with the bolt. The Spin-Wheel Attachment is made to be placed over axle to connect to hub insert. The spin-wheel is made of metallic material or plastic in array of colors and designs. The Hub Insert and Spin-Wheel Attachments come in interchangeable colors that coordinate with a person's outfit. The assortment of colors and fluorescent inserts and attachments will put a whole new twist on roller skating and ice skating. The versatility and sleek styling of this invention makes a fashion statement as well.

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: An articulating chassis for skates with accompanying boot comprises: a plurality of brackets, a first set of rollers and a second set of rollers, and at least one articulating member. The brackets have a first side and a second side. The first side affixes with the boot and the second side affixes with the rollers. The first set of rollers having a first side, a second side, and a rolling surface. The second set of rollers having a top side and a bottom side and a tread surface.

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 mechanical brake system for inline skates that utilizes all four wheels for braking. The brake is applied by the skater straightening the leg, or both legs if there are brakes on both skates, to a predetermined adjustable position. This causes the adjustable and spring loaded trigger rod, mounted on the pivoting ankle support behind the heel to push the brake lever that extends from behind the heel on both sides of the frame to the front where it is hingedly attached to move downwards. At the mid-point of the skate the brake rail positioned above the wheels and extending the whole length of the skate is connected to the brake lever. The downward movement of the brake lever and brake rail causes the brake rail to contact the wheels causing friction and thereby braking in direct proportion to the force by which the skater is straightening the leg(s). The brake rail is inflexible and shaped to fit the curvature of the wheels thereby facilitating even wheel wear both regarding shape and diameter.

Abstract: An in-line skate includes a frame and two rolling gears. Each of the rolling gears includes two levers pivotally connected to the frame, two casters each attached to related one of the levers, at least one first cushion provided between the levers and two second cushions each provided between related one of the levers and the frame.