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: 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 roller skate includes a boot, a connection frame fastened to the outsole of the boot, an expandable frame fitted with the connection frame, a wheel frame fastened to the connection frame and provided with a plurality of wheels and a brake shoe, and an elastic member located in the connection frame by the expandable frame. The elastic member serves as a shock absorber of the roller skate.

Abstract: A dual-purpose sports footwear is formed of a boot, an elastic plate, an arcuate outer plate, and a wheel mount plate. The boot has an arcuate inner plate which is detachably fastened to the elastic plate. The arcuate outer plate is detachably fastened to the elastic plate. The boot, the elastic plate and the arcuate outer plate form a jumpshoe. The wheel mount plate is provided with a plurality of wheel sets and is detachably fastened to the arcuate inner plate of the boot to form a roller skate.

Abstract: A vehicle truck for supporting a ground contacting device, and an independent-suspension turnable skate vehicle truck which supports a wheel or wheels or a runner or ski, and a boot having in-line wheels or tandem wheels is provided. The independent-suspension turnable skate vehicle truck has one or more deflecting beams attached to a wheel axle hanger and the opposite end attached to a skate vehicle mounting structure. The deflecting beam has at least one horizontal component and/or at least one vertical component. The vertical components resist vertical deflection of the wheel axle hangers to restrict upward and downward movement of the wheels or other ground contacting portions. The horizontal component controls most twisting motions controlling turning of the deflecting beam and wobble of the wheel. The truck and mounting surface are adaptable to permit changes to the number of wheels or ground contacting portions, the position of the wheels, and the thickness of the wheels.

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: The present invention provides a suspension system for in-line skates. The in-line skate includes a boot and a tracking system attached to the sole of the boot. Opposing rocking arms that hold the wheels are connected to the tracking system using a truncated axle. In addition, an adjustable spring can be configured between the opposing rocker arms.

Abstract: Resilient force-adjusting structure for skate board including at least two bracket bodies and a resilient mechanism disposed in the bracket body. Each bracket body includes an upper bracket and a lower bracket which are pivotally connected with each other, whereby the upper bracket can swing relative to the lower bracket. The resilient mechanism includes: a resilient body leant on the lower bracket; two stems uprightly fixed on two sides of top face of the upper bracket and passing through the upper bracket from inner side to outer side, each of the stems being formed with an axial thread hole; and two retainers each having a thread rod section and a retaining section disposed at bottom end thereof. Top end of the thread rod section is formed with a driving section. The thread rod sections of the retainers are screwed into the thread holes of the stems with the retaining sections abutting against top face of the resilient body.

Abstract: Disclosed is a skate including base structure attached to and underlying a durable foot covering having heel and toe ends. A first axle is pivoted to the base structure proximate the heel end and has opposing ends. The opposing ends of the first axle carry opposing parallel first and second in-line wheeled frameworks. A second axle is pivoted to the base structure proximate the toe end and has opposing ends. The opposing ends of the second axle carry opposing parallel third and fourth opposing parallel third and fourth in-line wheeled frameworks.

Abstract: The present invention relates to a means of transport, comprising: a frame least two contact members, such as skis or wheels, which am oriented parallel to the direction of forward movement and which are arranged with clearance away from and toward the frame hereon; and a balancing construction between the frame and the contact members for the purpose of preventing slanting of the frame. The balancing construction can herein comprise per wheel at least one compartment filled with fluid and the compartments of at least two of the contact members can be in direct open mutual connection for the fluid.

Abstract: The present invention relates generally to an improved skateboard truck for skateboards. The preferred skateboard truck comprises a yoke mounted by a king bolt to a mounting base. The mounting base comprises a socket hub and a bracket. The yoke comprises a hanger and a pivot arm. The pivot arm rotates freely in a bearing unit supporting the pivot arm in the socket hub. The king bolt clamps the hanger with a first grommet and a second grommet. The first grommet is flexible, preferably made of urethane rubber, and comprises an edge circumference and a center circumference. The center circumference is narrower than the edge circumference. Preferably, the first and second grommets are fluorescent.

Abstract: A pair of shock elements mounted on the wheel bearing frame of an in-line skate and attached to a foot platform are configured so that the attachment points of the shock elements to the platform which move in a Z direction are prevented from moving in an X or Y direction from each other and from movement in a Y direction measured from a plane parallel to the plane of rotation of the wheels and from movement in a X direction from a line parallel to the axis of one of the skate wheels.

Abstract: A shoe and a wheel device include one end detachably secured together with a projection-and-lock notch engagement. A toe member and a heel member are engaged on the front and the rear portions of the shoe. A latch is attached to the wheel device for latching and securing the heel member and the rear portion of the shoe to the wheel device. A quick release lock device is attached to the middle portion of the wheel device and engageable with the heel member for locking the heel member and the middle portion of the shoe to the wheel device.

Abstract: Resilient force-adjusting structure for skate board including at least two bracket bodies and a resilient mechanism disposed in the bracket body. Each bracket body includes an upper bracket and a lower bracket which are pivotally connected with each other, whereby the upper bracket can swing relative to the lower bracket. The resilient mechanism includes: a resilient body leant on the lower bracket; two stems uprightly fixed on two sides of top face of the upper bracket and passing through the upper bracket from inner side to outer side, each of the stems being formed with an axial thread hole; and two retainers each having a thread rod section and a retaining section disposed at bottom end thereof. Top end of the thread rod section is formed with a driving section. The thread rod sections of the retainers are screwed into the thread holes of the stems with the retaining sections abutting against top face of the resilient body.

Abstract: A skateboard in accordance with this present invention includes a aerodynamic deck design and the aerodynamic board supporting at least four interchangeable independent chassis supporting at least four removable integral multiple action independent suspension truck-free system, the suspension system support at least four and eight-wheeled configurations having all forks axles pivotally in forward motion and opposite direction from each other. The integral independent suspension system all parts and components are integrated in a body-frame, includes at least two independent shock-absorber mechanisms in whish the front shock-absorber suspension mechanisms interconnects with the rear shock-absorber secondary mechanisms, in which the rear shock-absorber mechanisms support the pivotally axles and wheel system.

Abstract: A truck assembly for a skateboard includes an axle housing, a base, and a kingpin connecting the axle housing and base. The kingpin holds the axle housing and a base surface of the base a predetermined distance apart. The truck further includes a turning mechanism between the axle housing and base, around the kingpin. The turning mechanism includes opposed cam surfaces that are angled along the axis of the kingpin and an elastomeric bushing so that rotating the axle housing about the kingpin pushes the cam surfaces apart, against the compression pressure of the elastomeric bushing. The elastomeric bushing may be located within a coiled spring. The truck assembly additionally includes an adjustment mechanism for adjusting the pressure against the bushing. The adjustment mechanism includes an adjustment surface on the base of the truck assembly with two or more adjustment points, each a different distance from the base surface along the direction of the kingpin.

Abstract: A wheel holder assembly includes a mounting frame fixedly mounted inside one bottom hole of the sole of a shoe, a wheel holder frame turned about a shaft in the mounting frame to hold a wheel between a received (the non-operative) position and an extended (the operative) position, a torsional spring adapted to support the wheel holder frame in the extended position, and a spring-supported, press pin-controlled locking device adapted to lock the wheel holder frame between the received position and the extended position.

Abstract: A roller skate comprising a shoe portion having a sole with front and rear regions and a cantilevered member having a free end proximate the front region of the skate and a fixed end opposite the free end. A supporting member is located between and contacting the cantilevered member and the sole. A plurality of front wheels are coupled to each other by a front axle. The front axle biases the free end of the cantilevered member. The skate further includes means for adjusting the position of the supporting member relative to the front axle. The position of the supporting member defines the sizes of the fixed end and the free end of the cantilevered member such that, when the adjusting means moves the supporting member away from the front region of the shoe portion, the size of the free end of the cantilevered member increases, permitting an increased amount of vertical movement of the free end of the cantilevered member and the front axle.

Abstract: A vehicle truck for supporting a ground contacting device, and in particular to a independent-suspension turnable skate vehicle truck which supports a wheel or wheels or a runner or ski, for example a roller skate boot have in-line wheels or tandem wheels is provided. The independent-suspension turnable skate vehicle truck has one or more deflecting beams attached to a wheel axle hanger and the opposite end attached to a skate vehicle mounting structure. The deflecting beam has at least one horizontal component and/or at least one vertical component. The vertical components resist vertical deflection of the wheel axle hangers to restrict upward and downward movement of the wheels or other ground contacting portions. The horizontal component controls most twisting motions controlling turning of the deflecting beam and wobble of the wheel.

Abstract: The present invention provides a suspension system for in-line skates. The in-line skate includes a boot and a tracking system attached to the sole of the boot. Opposing rocking arms that hold the wheels are connected to the tracking system using a truncated axle. In addition, an adjustable spring can be configured between the opposing rocker arms.

Abstract: A roller assembly of an in-line roller skate fastened to the sole of a boot for gliding on a surface and formed of a roller frame with wheels, a boot frame fastened pivotally with the roller frame, a braking mechanism fixed on the boot frame, and a biasing mechanism mounted between the roller frame and the boot frame.

Abstract: A skate which includes a shoe having a first frame and a second frame for supporting one or more wheels. The first frame and the second frame, or the sole of the shoe, are articulated in a region which lies approximately below the metatarsus of the foot in order to allow better flexing. An adjustable fork assembly is also provided between the first frame and the sole and is adapted to force the planar arrangement of the shoe once thrusting has ended.

Abstract: A shock absorbing skate truck assembly includes a resilient shock absorber at the king pin located between the assembly base of the assembly and the axle support member for absorbing shocks encountered during use. Another shock absorber is located in a recess of the assembly base and is engaged by an axle support member arm. The shock absorber in the recess includes a flexible, resilient component and a non-flexible, non-resilient component.

Abstract: A device for use with a skateboard and a skateboard truck assembly to facilitate the removal and replacement of various component parts of a skateboard truck assembly including the bushings and the tension bolt, which is used to join the base plate and the axle assembly. The bolt, which is inserted through the aligned apertures in the axle assembly and the base plate, penetrates into the area beneath the base plate where it emerges and mates with the threaded nut. The device is supported by the bottom surface of the board and held stationary inside a pocket formed within the underside of the base plate and consists of integrally formed components including a generally flat base, a sloped guide platform situated upon the base, and an upstanding heel section formed at the base of the sloped guide platform. The guide platform is constructed according to a specific angle of inclination to fix the nut's orientation and to enable the nut and the threaded end of the bolt to properly align and engage.

Abstract: The present invention provides a suspension system for in-line skates. The in-line skate includes a boot and a tracking system attached to the sole of the boot. Opposing rocking arms that hold the wheels are connected to the tracking system using a truncated axle. In addition, an adjustable spring can be configured between the opposing rocker arms.

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

Abstract: A platform having improved performance characteristics and stability includes at least one truck resiliently secured thereto. The at least one truck includes a body having an in-line skate chassis attached to a two-wheel truck. The two-wheel truck is formed by passing an axle through at least one of a plurality of wheel openings in the in-line skate chassis. The entire assembly is secured to the bottom of the platform by a suspension system having a turning horn operatively connected therein to allow the platform to pivot and move in a vertical direction, with respect to the at least one truck. The two-wheel truck may include tubular axle holding portions secured thereto.

Abstract: A new inline skate wheel assembly for permitting conversion from walking shoe to in-line skates through a spring release mechanism. The inventive device includes a locking clip with arms that are inserted into the spring loaded locking mechanism upon which the wheel yoke and axle are attached. When the arms of the male component locking clip are disengaged from the female component notches in the spring loaded locking mechanism, the wheel assembly may either be manually retracted into the cavity located in the sole of the boot or extended by the touch of a button in an instantaneous snap action due to the spring loaded locking mechanism.

Abstract: A truck assembly including a housing adapted to be mounted to a skateboard or the like. An axle bracket is positioned partially in the housing and is mounted for rotation transverse to the longitudinal axis. The axle bracket includes a projecting upper end portion and a bottom end portion adapted to receive a transversely extending axle and wheel assembly. A resilient member, located at least partially in the housing, is provided and is adapted to resist transverse rotation of the axle bracket, and provide a restoring force. In addition, a wedge member is provided, having an aperture configured for receiving the projecting upper end portion of the axle bracket to establish a direct coupling therebetween. For example, the wedge member aperture and the projecting upper end portion of the axle bracket may have complementary, engaging polygonal configurations. The truck assembly may further include a rotational lock subassembly structured to prevent wheel bind during a rider effected turn of the skateboard.

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

Abstract: A vehicle truck for supporting a ground contacting device, and in particular to a independent-suspension turnable skate vehicle truck which supports a wheel or wheels or a runner or ski, for example a roller skate boot have in-line wheels or tandem wheels is provided. The independent-suspension turnable skate vehicle truck has one or more deflecting beams attached to a wheel axle hanger and the opposite end attached to a skate vehicle mounting structure. The deflecting beam has at least one horizontal component and/or at least one vertical component. The vertical components resist vertical deflection of the wheel axle hangers to restrict upward and downward movement of the wheels or other ground contacting portions. The horizontal component controls most twisting motions controlling turning of the deflecting beam and wobble of the wheel.

Abstract: Inline roller skates are provided with independent suspension systems, separately suspending one or more of a plurality of wheels. The wheels are mounted rotatably on axles, and the axles are held nominally parallel to the sole of the boot. The suspension systems include guides that maintain the axles parallel to the sole of the boot even as the wheels and axles move vertically in response to bumps and other forces.

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

Abstract: A skate device, e.g., a skate or skate board, includes a foot support device, e.g., a boot or a board, and a truck assembly for supporting the foot support device. The truck assembly has a first wheel housing mounted in pivotal relation to the foot support device. A first wheel has a first axle mounted to the first wheel housing for rotation about a first wheel axis. A first spring housing is mounted in fixed relation to the foot support device. A centering spring is mounted within the first spring housing and engages the first wheel housing to pivotally urge the first wheel toward a predetermined first center position.

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

Abstract: An in-line skate having a suspension means that reduces or eliminates lateral movement of the skate boot. The in-line skate has a wheel chassis with a plurality of tandem wheels rotatably mounted thereon and a boot attached to the chassis. The diameter of the wheels preferably decreases from the toe end to the heel end of the chassis. The toe of the boot is pivotally attached to the chassis. A cylindrical suspension guide member extends vertically along a portion of the back of the boot and has a central bore located therein. A suspension chassis includes a pair of substantially parallel vertically disposed guide posts with a horizontal guide plate extending between the upper ends of the vertical guide posts and around the back of the boot. A stabilizer rod extends upwardly from the heel end of the wheel chassis. The stabilizer rod extends through the bore of the cylindrical guide member and through a bore extending vertically through the horizontal guide plate.

Abstract: A kick scooter steering control mechanism includes a five-bar linkage formed of a bracket, two toggle members and two follower levers to achieve a three-dimensional linking effect for enabling the front wheels of the kick scooter to be turned smoothly to change the steering direction.

Abstract: A shock absorbing skateboard truck assembly includes a resilient shock absorber member located between the assembly base of the assembly and the rest of the assembly for absorbing shocks encountered during use of the skateboard to which the shock absorbing skateboard truck assembly is connected. A shock absorbing element is spaced from the resilient shock absorber member at another truck assembly location.

Abstract: The present invention provides a suspension system for in-line skates. The in-line skate includes a boot and a tracking system attached to the sole of the boot. Opposing rocking arms that hold the wheels are connected to the tracking system using a truncated axle. In addition, an adjustable spring can be configured between the opposing rocker arms.

Abstract: A roller ski board similar to an ordinary snow ski board having a board body with bending elasticity and repellent property, and having at least one of single roller at it's central portion and with or without smaller two twin rollers at it's front and rear edge portions, pivoted rotatively on an under surface of the board body along it's longitudinal axis. The all rollers have a lubricity and a wear proof property with repellent elasticity so as to absorb the vibrations and shock added to the board from or to the ground during sliding. The all rollers are arranged such that each external side periphery of the rollers is gradually wider from the central portion to a front and rear edge so that the external side peripheries of each roller does not protrude over the contour curvature of the board body.

Abstract: A truck assembly for a skateboard includes an axle housing, a base, and a kingpin connecting the axle housing and base. The kingpin holds the axle housing and a base surface of the base a predetermined distance apart. The truck further includes a turning mechanism between the axle housing and base, around the kingpin. The turning mechanism includes opposed cam surfaces that are angled along the axis of the kingpin and an elastomeric bushing so that rotating the axle housing about the kingpin pushes the cam surfaces apart, against the compression pressure of the elastomeric bushing. The elastomeric bushing may be located within a coiled spring. The truck assembly additionally includes an adjustment mechanism for adjusting the pressure against the bushing. The adjustment mechanism includes an adjustment surface on the base of the truck assembly with two or more adjustment pints, each a different distance from the base surface along the direction of the kingpin.

Abstract: A frame for skates and the like with a structure comprising at least one bearing surface (3, 4) engageable by a boot or the like, and a side flange (2) comprising means for attaching one or more ground-engaging members. The components (3, 4-2, 8) of the structure are made of at least two at least partially mutually assembled materials having different mechanical properties.

Abstract: A scooter for children which includes a long footboard between two small end wheels and is controlled by an upright steering handle attached to the front wheel through a spring member for absorbing and reducing the impact generated from the front wheel so as to prevent a store of fatigue from accumulating, to maintain a fine figure thereof and lengthen the life thereof.

Abstract: A convertible shoe that can be used for walking or for in-line skating having an extendable and retractable wheel mechanism. The convertible shoe comprises cavities in the sole of the shoe capable of storing and enclosing the retracted wheel mechanism. The wheel mechanism allows the wheels to be held perpendicular to the walking surface of the sole when the wheel mechanism is extended, and parallel to the walking surface of the sole when the wheel mechanism is retracted. With the wheel mechanism extended, the convertible shoe can be used for in-line skating. With the wheel mechanism retracted and stored in the sole, the convertible shoe can be used for walking.

Abstract: A suspension assembly for a skateboard is disclosed having a base plate with a truck plate pivotally attached at one end. A shock absorber is located between the base plate and the truck plate. A projection on the base plate protects the shock absorber and aids the rider in performing tricks. In use, a wheel truck is attached to the truck plate opposite the shock absorber. The suspension assembly provides a suspension for a skateboard which helps to protect the rider from bumps, while retaining good steering control. In another embodiment of the invention, the suspension assembly includes a base plate with a projection at each end. Each projection has a groove and a top out stop. A truck plate is biased away from the base plate by a shock absorber, with the ends of the truck plate sliding in the grooves. Also part of the invention is a skateboard incorporating a pair of suspension assemblies.

Abstract: A truck assembly including a housing adapted to be mounted to a skateboard or the like. An axle bracket is positioned partially in the housing and is mounted for rotation transverse to the longitudinal axis. The axle bracket includes a projecting upper end portion and a bottom end portion adapted to receive a transversely extending axle and wheel assembly. A resilient member, located at least partially in the housing, is provided and is adapted to resist transverse rotation of the axle bracket, and provide a restoring force. In addition, a wedge member is provided, having an aperture configured for receiving the projecting upper end portion of the axle bracket to establish a direct coupling therebetween. For example, the wedge member aperture and the projecting upper end portion of the axle bracket may have complementary, engaging polygonal configurations. The truck assembly may further include a rotational lock subassembly structured to prevent wheel bind during a rider effected turn of the skateboard.

Abstract: A truck assembly for a skateboard includes an axle housing, a base, and a kingpin connecting the axle housing and base. The kingpin holds the axle housing and a base surface of the base a predetermined distance apart. The truck further includes a turning mechanism between the axle housing and base, around the kingpin. The turning mechanism includes opposed cam surfaces that are angled along the axis of the kingpin and an elastomeric bushing so that rotating the axle housing about the kingpin pushes the cam surfaces apart, against the compression pressure of the elastomeric bushing. The truck assembly additionally includes an adjustment mechanism for adjusting the pressure against the bushing. The adjustment mechanism includes an adjustment surface on the base of the truck assembly with two or more adjustment points, each a different distance from the base surface along the direction of the kingpin. An adjustment ring surrounds the kingpin, between the base surface and the turning mechanism.

Abstract: An antishock structure of scooter featuring a U-shaped anchor plate having symmetrical anchor holes disposed on top and bottom of its front and back surfaces; after the lower anchor holes are connected to wheel axles respectively, the other end of wheel axles is jointed with a front wheel respectively. A lug is arranged at the upper margin of the end of each wheel axle that enables the ends of two antishock members to be connected to the upper anchor hole of said anchor plate and the lug of said wheel axle respectively. As such, when the scooter is moving, the two antishock members provide a cushioning effect.

Abstract: A steering mechanism of a handle-controlled skate board including comprising a front wheel assemblies including two front wheels controlled by the steering mechanism. The steering mechanism is pivotally connected with the top section of a swinging seat by a fixing seat. A driving arm is fixed on rear side of the fixing seat for driving a base bar. The middle portion of the base bar is pivotally connected with the center of the bottom edge of the swinging seat. Two lateral ends of the base bar transversely extend to outer sides of the swinging seat for mounting wheels thereon.

Abstract: A steerable wheel assembly for an in-line skate or roller ski comprises a hollow or dish-shaped wheel (11), a wheel bearing (13), and a wheel support (14) connecting the wheel (11) to a steering pivot (16) which is substantially disposed at a distance measured radially from the rotational axis of the wheel (11) where that distance is greater than the outer radius of the wheel bearing (13) and less than the outer radius of the wheel (11). Steering of the wheel occurs as the user's weight is displaced or the chassis of the device is inclined with respect to the ground toward the desired turning direction. A chassis for an in-line skate or roller ski containing a damping and centering force mechanism which may be used to moderate the behavior of a steering mechanism or suspension mechanism comprises a structural member (21), a damper housing (17), a damper piston (19), a fluid chamber (24), and a centering force mechanism (18).