EP3381523A1 - Skateboard - Google Patents

Abstract

Wheel suspension for skateboards or similar chassis, wherein one, a footprint forming skateboard deck (1) of any outer peripheral shape optionally has a flat (26), angled (26,27) or wavy (26,28,29) cross-sectional shape, which its underside at least one, down against the footprint (18) facing support structure (2) of any shape, on or in a at a predetermined angle (W4) inclined bearing device (4,41,6) is attached, which at her lower, rotatable bearing part (41) via a fixedly connected thereto and about the axis CD within a circular sector rotatable or pivotable axle device (19 or 66) has, being provided at the outer axle ends rollers or wheels (11).

Description

The invention relates to a skateboard and an axle assembly or suspension for skateboards or other similar devices according to the preamble of claim 1.

PRIOR ART : It is already well known that the classic skateboards used worldwide today are constructed in almost all embodiments such that on the underside thereof front and rear in the region of the two end faces exactly on the longitudinal median plane in each case a frontally, angularly projecting bolt (King Pin) is attached. On each of the two bolts a transverse to the direction of travel wheel axle (Truck) is screwed on the one hand between two steering rubbers, and on the other hand supported on a rotating with the truck, projecting from this pin against the skateboard in a suitable receptacle. At the two ends of each wheel axle is in each case a role or a wheel.

Disadvantages of the prior art: The connection and thus the power transmission between the skateboard deck with the two provided on the median longitudinal plane of the deck king pins and the two trucks is through the front and the rear steering rubbers. If the king-pin screws are not screwed on, the deck of a skateboard can not stand horizontally horizontally by itself and it lays on one side. A skateboard is therefore not traversable with loose, unscrewed steering rubbers. It forms a labile system in this state. Specifically, this means that when not screwed steering rubbers, a movement of the deck about its longitudinal axis from the longitudinal center plane to the left or right is initiated, this movement increases and the deck tilts to the maximum deflection to the side and remains in this position. The explanation for this is very simple and is that usually have only a very small radius of about 12-14 mm. As soon as the center of mass and thus the force vector of the deck when tilting exceeds the outermost radius of the steering rubber, the deck falls to the side, as far as physically possible under the given circumstances. Already a slight twisting of the two King-pin screws causes a deck in its central position is stabilized horizontally, because the deck itself has only a low weight. But as soon as a rider climbs a skateboard deck with only slightly tightened king-pin screws, the same thing happens again as explained above, the system becomes unstable again and the deck of the skateboard tilts immediately to the skateboard deck maximum rash on the side on which the driver's mass vector outweighs. A skateboard is impassable in this condition for a normally experienced driver, because it would drive at a low speed of each foot movement of the driver following "zig-zag", which leads very quickly to the fall. Therefore, the two King-pin screws of a skateboard must be tightened so tightly depending on the weight of the rider that a stable straight-ahead ride is guaranteed even at a higher speed. In practice, the King-pin screws must therefore be tightened accordingly, so that the deck under the weight of the driver does not tilt unintentionally to the side. This has the disadvantage that with a skateboard just no direction steering can be controlled, but only very limited directional corrections along a straight forward direction in the range less degrees are possible, which corresponds in the best case a large Fahrradius, so driving curves under a small radius of a few meters is definitely not possible. With state-of-the-art skateboards, it is also not possible to control turns when standing on the deck with only one leg and performing the drive movements against the road with the other leg, which disadvantages make skateboarding more difficult in practice.

The object of the invention is to provide a better steering ability by a novel suspension or axle assembly for means of transport of the type mentioned, which is a safe smooth and balanced steering for definitive direction steering with achievable small as well as large Fahrradien while avoiding the already mentioned lateral tilting moment on the estate and during travel, with at least one positive steering axle without king pin, without steering rubbers and without a weight setting, wherein in a further preferred embodiment by the geometric nature of a particular embodiment of this suspension generates propulsion solely by lateral directional panning or tempo of a driver can be where the driver can stand with both legs on the deck.

The solution of the technical problems results according to the invention by the subjects of claims 1, ..... Further advantageous embodiments of the invention will become apparent from the dependent claims.

The invention is based on the observation and the knowledge that the connection between the skateboard deck and the skateboard trucks only by means of standardized steering rubbers and only in the region of the median longitudinal plane and here only in the very small width range of the steering rubber diameter, so that the vertical mass vector of the driver standing on a skateboard deck is always out of the diameter of a steering rubber, even if it is approximately in the middle of the skateboard deck, so the deck tilts immediately to the side of the larger vertical mass load and as soon as it tilts the deck of the mass vector exceeds the radius of the steering rubber to the outside, suddenly the entire mass force acts on the tilting side of the deck, which is why a sufficiently strong compression fitting to the king-pin screws is required to prevent tilting, but in consequence the direct steerability a skateboard v erhindert. From this, the finding is derived that in order to achieve the desired steerability, instead of such a standardized truck axle, at least one novel, freely pivotable, movable axle on both sides must be provided, which is preferably the front axle in the direction of travel. The technical basic configuration of such a skateboard then looks like that a skateboard consists of a possible torsion stiff deck, which in the direction of travel on its front over a novel positive steering axle assembly and at the rear over a preferably classic screw-truck axle with king pin and steering rubbers or has a similar acting, stabilizing axis of any design.

This is inventively achieved by a skateboard is equipped with at least such a novel axle assembly for a skateboard, which is preferably the front axle, said axle assembly on the one hand mounted on the underside of the deck, downwardly facing support structure with an angularly projecting from the rear down below Storage device has, which consists of a combination of at least one thrust bearing and at least one radial bearing or a plurality of radial bearings or an angular contact ball bearing on which a patch on it, from the neutral central position to both sides pivoted frame is provided which carries the transverse wheel axle which has wheels or wheels at both ends.

The arrangement of the mechanically active components provides in a preferred manner, that seen in the direction of travel, the axle unit mounted on the pivotable frame is located in the installed position spatially in front of the bearing unit thrust bearing / radial bearing, whereby this axle unit is pushed while driving, or is provided in a further embodiment in that the pivotable frame with the axle unit mounted thereon is behind the bearing unit thrust bearing / radial bearing, then the truck is dragged or pulled while driving, in both cases, however, the pivoting movements of the aforementioned frame for the purpose of steering occur independently of its installation position one and the same plane, which on all sides occupy a right angle to the central axis of the bearing unit thrust bearing / radial bearing and which extends at a standing on his wheels skateboard from the bottom front to the back top. The bearing unit axial bearing / radial bearing is constructive from a flat, level deck in an angle range between 5 ° and 80 ° downwards from the rear, better in an angular range between 15 ° and 50 °, preferably in an angular range between 25 ° and 35 °. Furthermore, during pivoting of the deck in an automatic manner, an offset between the deck longitudinal axis and skateboard longitudinal axis in dependence on the dimensioning of the laterally pivotable frame. That is, the longer this frame is in the longitudinal direction, the greater is the lateral offset between the two above-mentioned longitudinal axes during pivoting, wherein these two axes intersect at a deflection in the area of the king pin of the rear truck axis. In practice, the two-sided, lateral offset movement between the longitudinal axes, caused by alternately lateral reaming of the driver with position and weight transfers, also be used as a driving force component, in which case the driver can stand with both legs on the deck during this ride.

In summary, it is stated that the deck of a skateboard alone by the inventive wheel axle under a mass force from above does not tilt down to the side, but that under such a force, the entire wheel axis is pivoted out of the longitudinal center plane to one side, so a Variable set of forces from the points a) Center of the rear wheel axle, b) Front pivot of the frame and c) Center of the front wheel axle.

In order to achieve the inventively desired stable steerability in an optimal manner, the pivotable frame in a preferred arrangement of the bearing unit thrust bearing / radial bearing in the direction of travel must protrude angularly forward, which is pushed in the new axle assembly of the truck. Advantageously, the front and rear axle are spaced so far in dependence on the angle of inclination of the bearing unit thrust bearing / radial bearing in the longitudinal direction that the distance of the axes of a tilting of the deck following deflection angle from the longitudinal center plane is reduced so that no oversteer the Steering takes place and that soft, dynamic steering movements result in an optimal driving feel. Practical tests have shown that the new steering system works best when the deck is torsionally rigid and when the rear axle steers only to a small extent. Good directional steering can be achieved when the rider places one foot centered in the center of the new axle on the deck, picking up momentum and then traversing the rear foot over the rear axle and either steering the rear foot or on the other side of the deck exerts low pressure.

A further advantageous embodiment has the aim of optimizing the adaptation between the deck and the support structure of the axle unit as much as possible and therefore provides according to the invention that the deck of the skateboard is angled downwards in the front area, wherein the novel axle arrangement is angled in this Area is attached to the deck bottom. This results in the advantage that the mechanical components of the support structure are minimized in terms of size and weight. Regardless, the stiffness of the deck is increased by its deformation, and it is compared to a flat deck also increases driving safety, because the floor space of the driver spatially ends in the top bending area behind the pivot bearing area, so that the driver's mass vector also do not exceed this range to the front can.

In an advantageous embodiment, the axle assembly according to the invention has at least one pressing on the movable frame for abutment with at least one, located at the steering end points boundary surface for two-sided limitation of the maximum Achsauslenkung.

In a further advantageous embodiment, it is provided that an elastic plate or an elastic frame of a certain thickness is inserted between the deck and the supporting structure of the new axle assembly mounted thereon, so that at least all those vibrations can be damped when driving, which in a conventional skateboard be cushioned by the steering rubbers.

• Fig. 1 Skateboard in Seitenansicht mit einer vorne liegenden Lenkachse;
• Fig. 2 Vergrößerung des vorderen Lenkachsen-Bereiches der Skateboard Seitenansicht;
• Fig. 2a Begrenzung des Lenkwinkels der Achsanordnung;
• Fig. 3 Skateboard in Seitenansicht mit einer gezogenen Lenkachse;
• Fig. 4 Draufsicht auf ein Skateboard von unten mit geradestehender Lenkachse;
• Fig. 5 Draufsicht auf ein Skateboard von unten mit ausgeschwenkter Lenkachse;
• Fig. 6 Vergrößerung des Frontbereiches in Ansicht von unten, gezogene oder geschleppte ausgeschwenkte Lenkachse;
• Fig. 7 Vergrößerung des Frontbereiches in Ansicht von unten, gezogene oder geschleppte gerade stehende Lenkachse;
• Fig. 8 Vergrößerung des Frontbereiches in Ansicht von unten, geschobene ausgeschwenkte Lenkachse;
• Fig. 9 Fig. Skateboard in Seitenansicht mit einem vorne abgewinkelten Deck;
• Fig. 9a und 9b Distanzblock und Lagerung der Lenkachse;
• Fig. 10 Skateboard in Seitenansicht mit einem vorne zweifach abgewinkelten Deck;
• Fig. 11 Stabilisierende Vorderachse für ein Skateboard oder ähnliche Fahrgestelle.

The invention will be explained in more detail with reference to embodiments. The accompanying drawings show:

• Fig. 1 Skateboard in side view with a front steering axle;
• Fig. 2 Enlargement of the front steering axle area of the skateboard side view;
• Fig. 2a Limitation of the steering angle of the axle assembly;
• Fig. 3 Skateboard in side view with a towed steering axle;
• Fig. 4 Top view of a skateboard from below with straight steering axle;
• Fig. 5 Top view of a skateboard from below with pivoted steering axle;
• Fig. 6 Enlargement of the front area in view from below, pulled or towed pivoted steering axle;
• Fig. 7 Enlargement of the front area in bottom view, drawn or towed straight steering axle;
• Fig. 8 Enlargement of the front area in view from below, pushed pivoted steering axle;
• Fig. 9 Fig. Skateboard in side view with a front angled deck;
• Fig. 9a and 9b Distance block and bearing of the steering axle;
• Fig. 10 Skateboard in side view with a front two-fold angled deck;
• Fig. 11 Stabilizing front axle for a skateboard or similar chassis.

Fig. 1 shows a skateboard of an advantageous embodiment with the front in the direction of travel 20 facing in side view from a standing surface forming chassis or deck 1, at its two end ends of wheel axles 7, 8 by means of the axle 19, 13 arranged on or on the support structures 2, 3 are. If only one piece of a steering axle according to the invention is provided on a skateboard, then as the second wheel unit 51 according to FIG Fig. 1 For example, a classic skateboard truck used, but in itself has to meet any direct steering task, whose task is in this configuration rather to stabilize the deck 1 horizontally, while allowing movements of the deck along its longitudinal axis. The front wheel axle unit 50 is characterized in that it is only twisted for steering about the axis of rotation CD but not tilted as usual, this consists of attached to the underside of the deck 25 support structure 2, which carries the bearing unit 4, which is parallel to the straight line AB rotates, with this perpendicular and centrally through this bearing unit 4 current axis CD with the normal axis GH of the flat and bottom-parallel top side 25 includes an angle in the range between 5 ° and 80 °, better between 15 ° and 50 °, and best in an angle range between 25 ° and 35 °. The straight line AB lies parallel on a plane that is right-angled to the axis CD on all sides. On this parallel plane of the rotational axis AB, the axle carrier 19 is forcibly pivoted on both sides out of the central position outwards, as a direct consequence when the deck is tilted laterally. The mechanical connection between the bearing unit 4 and the axle carrier 19 is effected by means of a connecting element 6, wherein the rotating parts 4, 19 can be spaced by a thrust washer 5 slidable on both sides. Because the front wheel unit has no damping steering rubbers, between the support structure 2 and the deck 1 is an elastic plate or frame 30 (FIG. Figure 9 ) intended. The located in the axle beams 13 or 19 axles 7 or 8 have at their outer ends via pairs of rollers or wheels 11 or 12th

Fig. 9 shows an advantageous embodiment of a skateboard pointing in the direction of travel 20, with an axle assembly according to the invention and a deck 1, at least in its front area in the direction of footprint 18 within the between the axes 32 and 33 exemplary angle range W3 is angled. The spatial size of the support structure 31 is therefore minimized by the extent of the angle W3, because the angled deck bottom 26 is closer to the component 31 than the deck bottom 27. Constructively, this provides the ability to change the distance of the deck 1 from the bottom 18 in this area in that only the support structure 31 is displaced or positioned on an inclined plane on the underside of the cover 26 along an exemplary axial direction AB. The distance height from the bottom 18 therefore changes without requiring a size change of the component 31. By this effect, one and the same component 31 can be used for different skateboard sizes. Advantageously located between the support structure 31 and the deck 1, an elastic intermediate piece 31 formed as a plate or as a frame to dampen the vibrations coming from the wheels during the ride against the deck.

Fig. 10 shows as a further advantageous embodiment according skateboard equipment Figure 9 in which a deck 1, viewed from the side, is angled twice along an S-shaped contour line along the merging surface sections 26, 28, 29, so that the deck 1 is aligned horizontally again by the second radius 39 following the first radius 38, so that the deck 1 is any closer to the footprint 18 as in the initial height of the axis 32nd

Fig. 2 shows geometric details of steering axle unit 50 (FIG. Fig.1 ), wherein the wheel axle 9 carrying the steering frame 19 is pivoted laterally under the influence of the side tiltable deck 1 about the axis CD, so that lying on the center of the wheel axle 9 point P2 (FIG. FIGS. 7 . 8th ) performs a superimposed horizontal and sideways vertically ascending arcuate motion, the arc being proportional to the increase in the distance F (FIG. Fig.2 ) gets bigger. The height difference E is a product of the length F and the angle between the axes GH and CD, wherein a reduction of this angle by approximating the axis CD to the vertical axis GH with a tilting movement of the same amount of the deck to a stronger swing in the relation the steering frame 19 leads.

Fig. 2a shows a preferred embodiment of a limitation of the maximum steering angle of exemplary axle units 50 or 52 in which the steering frame 19 via a bolt 36th has, in turn, an elastic sheath 35, wherein between the wall 45 of the bearing device 4 and the elastic sheath 35 such a distance is provided that the elastic sheath 35 is pressed upon reaching a maximum allowable angular range against the wall 45, whereby the lateral Pivoting movement by means of this stop soft stops, and thus ends the pivotal movement at this position.

Fig. 3 shows in a further advantageous embodiment, a towed steering axle unit 52, the steering frame 19 pointing counter to the direction of travel to the rear and which is under the influence of the lateral tilting movements of the deck 1 about the axis KL on the plane MN or parallel to both sides pivoted.

4 and FIG. 5 show from below the front part of a skateboard with a towed steering frame 19 in the view from below, in particular Figure 4 shows that the pivot radius R1 is defined by the distance between the two points 6 and P2. Figure 5 shows the ausschwenkende from the longitudinal center plane straight line ST. The larger the radius R1, the farther the longitudinal axes QR and TZ move away from one another when swiveling out FIG. 6 shows how this distance B increases when swinging the steering frame 19 to the outside.

Figure 7 shows from below the front portion of a skateboard in a preferred embodiment with a spatially arranged in front of the bearing device 4 axle assembly 19 with the straight ahead in the direction 20 alignment with a right angle between the longitudinal axis QR and the wheel axle 24th

Figure 8 shows from below the front portion of a skateboard in a preferred embodiment with a spatially arranged in front of the bearing device 4 axle assembly 19, which is swung at an angle W2 to the fastener 6, wherein the comparison of the two FIGS. 6 and 8th shows that when pushed steering frame 19, the wheel on the inside of the curve in the skateboard edge, the towed steering frame 19 is the same wheel of the inside of the curve between the longitudinal axis QR and skateboard edge, however, only halfway up, although both steering frame 19 with an angle have been pivoted equal 30 ° of 30 °. From this Contemplation is to deduce the knowledge that according to the FIGS. 7 and 8th the actual wheel axle is not the axle 24, but rather off
the two half-axes 22 and 23 is formed, which are directed at an intended maximum pivoting angle of 30 ° from a kinematic point of view at an angle of 30 ° to the front, starting from the central axis of the fastener 6. In practice, therefore proves the pushed Axis both in straight-ahead driving as well as in steering as superior stable, whereas the towed axle rather causes a more unstable, much harder to control driving behavior.

Fig. 11 shows a derived from the above findings front axle for a skateboard in the view from below, in which the forward steering frame 19 from Fig. 7 is replaced by a preferably one-piece skateboard axle, which consists of a central central part of any shape, from both sides at a structurally predetermined angle forward side arms 61 and 62 depart, the entire axle unit 66 is concentrically rotatably mounted on the exemplary storage device 4 , And wherein each of the two side arms 61 and 62 in an exemplary maximum steering deflection of 30 ° structurally effective at about the same angle of 30 ° from the transverse axis 64 angled forward in the direction of travel 20, wherein these two angles in Figure 11 be represented by the axis lines 22 and 23.

Fig. 9a shows a further embodiment of the attachment and storage of a movable axle frame in section, wherein a deck 1 has provided on its underside support structure 2, for example, from a block of a stable elastic material, such as polyurethane or hard rubber of arbitrary cross-section with any Exemptions exists, the support structure 2 has a connected to this part thrust bearing with the fixed portion 4, and the rotating part 41 of the same bearing with the pivotable about the axis CD axle frame 19 is fixedly connected.

Claims (15)

Wheel suspension for skateboards or similar chassis, comprising at least one skateboard deck with longitudinally spaced wheel axles, at least one steerable wheel axle rotatably supported in such a manner in the longitudinal center plane that lateral tilting of the deck results in forced directional steering, characterized that one, forming a standing surface, skateboard deck (1) of any outer peripheral shape has cross-sectional shape either through a flat (26), angled (26,27) or wavy (26,28,29), which on its underside at least one downwardly has support structure (2) of any shape pointing towards the contact surface (18), on or in which a bearing device (4, 41, 6) which is inclined at a predetermined angle (W4) is fastened, which at its lower, rotatable bearing part (41) via a permanently connected and rotatable about the axis CD within a circular sector or pivotable Axle device (19 or 66) has, being provided at the outer axle ends rollers or wheels (11). Wheel suspension for skateboards or similar chassis according to claim 1, characterized in that the deck (1) of a skateboard on its longitudinal center plane, in particular in a direction of travel (20) forward region, on its underside on an applied support structure (2), which on a plane parallel to the axis AB carries a bearing unit (4,41) through whose center the axis of rotation CD normal to the axis or the plane AB, and with the contact surface (18) always normal standing straight line GH an angular range between 5 ° and 80 °, better an angle range between 15 ° and 50 °, preferably an angle range between 25 ° and 35 °. Wheel suspension for skateboards or similar chassis according to claim 1 or 2, characterized in that the deck of a skateboard (42) has at least one, transverse to the longitudinal direction bending radius (43), wherein the deck (42) at the front side at a predetermined angle (W3 ) in the direction of footprint (18) is angled, so that a support structure (2) corresponding to its axis of rotation CD in installation position is substantially normal to the cover axis 33. Wheel suspension for skateboards or similar chassis according to one of claims 1 to 3, characterized in that the deck of a skateboard (42) has more than one transverse to the longitudinal direction bending radius, wherein a front-side front radius (38) has a longer course so that the deck with respect to the axis 32 constructively comes to a lower level, wherein the deck is formed by a second, lower-lying radius (39) mechanically again in a horizontal, ground-parallel plane. Wheel suspension for skateboards or similar chassis according to one of claims 1 to 4, characterized in that the / a wheel axle (9) carrying steering frame / axle device (19, 66) is pivotable sectorally about the axis CD, and thereby a superimposed horizontal and the vertical difference (E) is a product of the distance length (F) and the angle between the axes (GH) and (CD), and wherein this movement on a plane that runs from the front bottom to the back top. Wheel suspension for skateboards or similar chassis according to one of claims 1 to 5, characterized in that an axle unit (50 or 52) on the movable steering frame (19) via a bolt (36), on which an elastic sheath (35) is applied , and that between the wall (45) and the elastic sheath (35) such a distance is provided that the casing (35) rotating along a circular arc is pressed against the limiting wall (45) when the maximum permissible pivoting angle (W2) is reached , whereby the pivoting movement is elastically stopped and stopped. Wheel suspension for skateboards or similar chassis according to one of claims 1 to 6, characterized in that in a steering axle unit (52) of the towed or drawn steering frame (19) opposite to the direction of travel (20) pointing backwards and under the influence of the lateral tilting movements of the deck (1) about the axis (KL) on the plane (MN) or parallel to this on both sides pivoted is. Wheel suspension for skateboards or similar chassis according to one of claims 1 to 4, characterized in that a steering axle unit (50) via a pointing in the direction of travel (20) and thus spatially in front of the bearing device (4) positioned steering frame (19) has within of the angular range (W2) about the axis (CD) is pivotable, and whose movements take place on a plane which is parallel to the axis AB. Wheel suspension for skateboards or similar chassis according to one of claims 1 to 8, characterized in that a one-piece or composite steering axle (66) consists of a central central part (49) of any shape, which includes the bearing unit (4,41) and of the on both sides at a corresponding angle (W6) in a symmetrical arrangement obliquely forward side arms (61, 62) depart, each of these two side arms (61, 62) at an exemplary maximum steering deflection of about 30 ° by the same angle of about 30 Is directed forward from the transverse axis (64), these two angles being mapped between the transverse axis (64) containing the point of rotation (6) and the two axis lines (22, 23). Wheel suspension for skateboards or similar chassis according to one of claims 1 to 9, characterized in that the steering axis (66) at its outer ends (44, 45) on axle extensions (46, 47) of any type has, which in a further embodiment also by a one-piece wheel axle along the axis 24 can be replaced, being mounted on the axle ends rollers or wheels (11). Wheel suspension for skateboards or similar chassis according to one of claims 1 to 10, characterized in that a further embodiment for limiting the maximum steering angle of the steering axle (66) at least one, between the two forwardly directed arms (61, 62) from the underside of the deck ( 26) downwardly in the direction of footprint (18) protruding, elastic spring element (54) of arbitrary cross-sectional shape on the longitudinal axis QR provides, or in a further embodiment at least two similar elastic spring elements (54) sit symmetrically outside the longitudinal axis QR at inner boundary points, or that in a further embodiment in the direction of travel (20) behind the steering axis, two symmetrically off-center mounted elastic spring elements (54) are provided at boundary points. Wheel suspension for skateboards or similar chassis according to one of claims 1 to 11, characterized in that between the underside of a skateboard deck (26) and a support structure (2), a vibration damping elastic frame or a similar elastic plate (30) is inserted. Wheel suspension for skateboards or similar chassis according to one of claims 1 to 12, characterized in that a further preferred embodiment of a movable axle device (19, 66) via a on the underside of the deck (1) provided support structure (2) which has a has mounted on the underside thrust bearing with the fixed portion (4), and wherein the rotating part (41) of the same bearing with the pivotable about the axis CD axle frame (19) is fixedly connected. Wheel suspension for skateboards or similar chassis according to one of claims 1 to 13, characterized in that to obtain the required spatial distance between the bottom (26) of the deck (1) and the bearing unit (4,41), as well as for damping of Between the surfaces (4, 26) of these components, a block (2), which consists of a stable elastic or. Between the surfaces (4, 26) of these components, the vibrations transmitted to the movable axle frame (19, 66) limited elastic material, such as polyurethane or hard rubber is made, and has any number of exemptions of any shape, or in a further embodiment also has a number of projecting from one or both end faces, cast-fasteners. Wheel suspension for skateboards or similar chassis according to one of claims 1 to 14, characterized in that between the fixed bearing part (4) and the rotating bearing part (41) is a ring (59) of any consistency and any cross-section, which between the Surfaces (4, 41) frictionally and sealingly fitted.

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