AT517930A1 - Axle steering with elastic element - Google Patents

Abstract

Steering for a scooter comprising at least one steering knuckle element (6, 7) rotatably mounted about a steering knuckle pivot (4, 5) with a steering knuckle (8, 9) and at least one wheel (2, 3) adjustable relative to a frame (1) of the scooter which wheel (2, 3) is supported (10, 11) by a wheel axle on the steering knuckle element (6, 7), the steering system comprising an elastic element comprising an elastic element with a frame receiving point (16, 17) and / or stub axle ( 26, 27) is engaged in a curve position of the wheel (2, 3) and undergoes a deformation caused by the rotation of the steering knuckle element (6, 7).

Description

The invention disclosed herein relates to a steering system for a scooter comprising at least one steering knuckle member rotatably mounted about a knuckle member fulcrum having a knuckle and at least one wheel adjustable relative to a frame of the scooter wheel which is mounted on the knuckle member by a wheel axle. CN2581304 utilizes a torsion spring mounted at a pivot point which provides a spring action between a knuckle and a support member connected to the tread. The spring action is not adjustable by positioning the retaining element. In the figures of CN2581304, the torsion spring are designated by the reference numeral 3, the steering knuckles by the reference numeral 27 and the retaining element by the reference numeral 1. The holding element is - as can be seen with reference to Figure 2, Figure 3, Figure 5 and Figure 7 - rigidly connected to the footboard. CN2581304 contains no indication of an adjustability of the spring action.

The steering disclosed in DE10036963A1 does not include steering knuckle members coupled by a tie rod. DE10036963A1 comprises a rigid axle at the end of which the wheels are rotatably mounted. The spring shown in DE10036963A1 is adjustable.

In the steering system shown in DE10057653, the spring is coupled to the tie rod. The tie rod undergoes a lateral movement and a movement perpendicular to the lateral movement at a position of the wheel in a curve position. This movement of the tie rod is unfavorable in terms of coupling with a spiral spring extending transversely to the tie rod, since-with reference to FIG. 1 of DE10057653-a relative movement takes place between the spiral spring and the tie rod.

The spring restoring force in DE10057653 determined by changing lever lengths, so that according to Figure 9, the steering force is independent of the deflection to the right or left constant.

The steering disclosed in DE202008018074 is not a steering axle steering.

The spring used in the steering disclosed in US20140042717 acts by twisting (Torrsion). The vehicle disclosed in US20140042717 does not include a steering knuckle. DE20008604, DE20103486, DE20103488, US2330147, US5330214, US6286843, US6299186, US6341790, US8696000, US20110101633, US20020167144 and WO201207595 do not disclose steering knuckle.

The prior art to US6382646 disclosed in Figure 2 of US6382646 shows a steering comprising a coil spring engaging a tie rod. The elastic coil spring is not connected to the stub axles. In contrast to the invention described below, the deformation direction is determined by the deformation of the spiral spring by the substantially linear movement of the tie rod and not by the rotation of the steering knuckle.

According to current teaching, a steering knuckle offers more security, as when turning the user's body must be moved to one side of the scooter to steer the scooter in the belonging to the side direction. It thus affects the physical strength of the user in the direction of travel. When cornering, the inner wheel and the outer wheel describe different curve radii.

The known in the prior art steering systems have the disadvantage that the production of these steering systems with spring cost play in the production and further in use are prone to error.

The invention disclosed below is based on the use of a steering knuckle for a scooter. It sets itself the task to combine the advantages of a steering knuckle - especially in terms of driving characteristics - with the advantageous spring action of an elastic element.

According to the invention, this object is achieved in that the steering comprises an elastic element, which elastic element engages with a frame receiving point and / or Achsschenkelaufnahmepunkt at a curve position of the wheel and undergoes a caused by the rotation of the steering knuckle deformation.

Within the scope of the disclosure of this invention, the term "engaged" means that the elastic element can contact the support when the wheel is in a straight position and contacts it at a defined curve position of the wheel Curve position not yet contacted the support and only contacted the support at a second curve position.

The frame receiving point is formed by a support, which support is provided on the frame of the scooter.

The rotatably mounted stub axle member is moved against the abutment upon rotation, the elastic element undergoing deformation as a function of the engagement by a bending load and / or a tensile load and / or compressive load. The person skilled in the art is certainly able to arrange the steering knuckle element and the support in such a way that the elastic element experiences the desired deformation.

Since the rotation of the steering knuckle directly dictates the deformation of the elastic element, the elastic element is deformed in dependence on the rotation of the steering knuckle element. The greater the rotation of the steering knuckle element, the greater the deformation of the elastic element and the greater the restoring force caused by the deformation of the elastic element.

In the introduction to the description it is stated that, as an advantage of the axle pivot steering, the outer and inner wheels describe different radii in a curve position. Consequently, the steering knuckle elements also experience a different rotational position when the wheels are in a curve position. Since the elastic elements are coupled directly to the steering knuckle elements, in particular to the steering knuckles, the elastic elements experience a different deformation at a different position of the steering knuckle elements.

In a curve position of a steering knuckle, the inside of the steering knuckle undergoes a magnitude greater rotation than the outside steering knuckle element, as the inner wheel undergoes a stronger cam position than the outside wheel. As stated above, offers a steering axle the advantage that the user of scooter roller on that side can lean, in which side also the steering direction is directed. Because of the higher deformation of the elastic element on the inside of the curve, the restoring force on the inside of the curve is greater due to the elastic element. The user just needs this restoring force on the inside of the bend, on which side he leaned to steer to get from cornering in a straight ahead.

The elastic element may be formed integrally with a steering knuckle.

The elastic element may be undeformed in a straight position of the wheels or loaded with a bias. The elastic member may have a bias in a straight position of the wheels with a main direction of tension in one direction and have a deformation with a main direction of tension in an opposite direction at a curve position of the wheels.

The elastic element can also be a bending spring, for example, which bending spring is in engagement with the steering knuckle and the frame, so that the bending spring experiences a deformation when the wheel is in a curved position.

The spiral spring may have a bias in a straight position of the wheels.

The spiral spring with the steering knuckle and / or be coupled via a support to the frame by a mechanical connection, the valence of the mechanical Verbindune - according to the common teaching - has an influence on the deformation of the spiral spring. Preferably, the mechanical connection between the spiral spring and the steering knuckle or frame is such that the bending spring is engaged with the steering knuckle and / or frame by this mechanical connection.

The spiral spring and the stub axle are engaged in a stub axle receiving point. The stub axle receiving point can be adjusted relative to the spiral spring for setting the effective spring length, thus adjusting the spring force. A shorter set effective spring length causes a higher spring force, which acts in or against rotation of the steering knuckle member.

The ability to adjust the spring effect has the advantage that the steering behavior can be adapted to the weight of the user and / or his skill and / or ability.

The spiral spring and the frame may be engaged in a frame receiving point. The frame receiving point may be adjustable relative to the bending spring for adjusting the effective spring length, thus adjusting the spring force.

The invention disclosed herein also relates to a steering system for a scooter comprising at least one wheel adjustable relative to a frame of the scooter, a first knuckle member rotatably mounted about a first knuckle member pivot point, a second knuckle member rotatably mounted about a second knuckle member pivot point with a second knuckle wherein a bending spring is engaged in a rotation of the first knuckle member and / or the second knuckle member with the second knuckle member and with the second knuckle member, so that when a curve position of the wheel, the spiral spring undergoes a deformation.

The bending spring can - analogously to the above - is coupled to the first knuckle element and the second knuckle element.

The spiral spring and the steering knuckle element are engaged in a first stub axle receiving point or in a second stub axle receiving point. In this case, at least one steering knuckle receiving point can be adjustable relative to the spiral spring for determining the effective spring length.

The spiral spring may be coupled to the frame at a frame receiving point.

The frame receiving point may be adjustable relative to the bending spring for adjusting the effective spring length.

The steering may include a tie rod of the prior art. A tie rod is engaged with or coupled to the stub axles such that movement of the first stub axle member is transmitted to the second stub axle member.

A bending spring which extends between the first stub axle and the second stub axle and engages or engages therewith can act as a tie rod.

Figures 1 to 14 show embodiment of the steering system according to the invention, wherein the figures 1, 3, 5, 7, 9,11,13 the steering in a straight position of the wheels and the figures 2, 4, 6, 8,10,12,14 shows the steering at a curve position of the wheels. The figures serve exclusively to clarify the subject matter of the invention disclosed herein and in no way limit the subject matter of the invention.

The person skilled in the art is able to do so without any doubt and in the context of the disclosure of the invention is explicitly requested to combine the embodiments described below with one another or an embodiment with the above general description.

In the figures, the following reference numerals denote the following elements of the steering. 1 frame 2 first wheel 3 second wheel 4 first axle pivot fulcrum 5 second axle pivot fulcrum 6 first knuckle element 7 second knuckle element 8 first knuckle 9 second knuckle 10 first wheel axle 11 second wheel axle 12 spiral spring 13 first spiral spring section 14 second spiral spring section 15 rotary joint 16 first frame receiving point 17 second frame receiving point 18 18 'actuator 19 Verschieregune 20 connector 21 tie rod 22 first edge 23 second edge 24 rigid connection 25 free 26 first stub axle receiving point 27 second stub axle receiving point 11 effective first spring length 12 effective second spring length

Figure 1 and Figure 2 show a first embodiment of the steering system according to the invention, wherein Figure 1 shows the wheels in a straight position and Figure 2, the wheels in a curve position. The steering system according to the invention finds application in a scooter in the application example shown in Figure 1 and Figure 2. Figure 1 and Figure 2 show a bottom view of the scooter and installed on the scooter steering.

The steering system according to the invention comprises a first stub axle element 6 rotatably mounted on the frame 1 about a first stub axle element pivot point 4 with a first stub axle 8 and a second stub axle element 7 with a second first stub axle 9 rotatably mounted on the frame 1 about a second stub axle pivot point 5. The stub axle pivots 4, 5 are to frame 1 immovable.

There are further rotatably mounted on the first stub axle 6 a first wheel 2 by means of a first wheel axle 10 and on the second stub axle 7 a second wheel 3 by means of a second wheel axle 11.

The steering system shown in FIG. 1 and FIG. 2 comprises a bending spring 12 with a first bending spring section 13 and a second bending spring section 14. The first bending spring section 13 engages with the first steering knuckle 8 and via a first frame receiving point 16 by means of a coupling; the second bending spring portion 14 is engaged with the second knuckle 9 and via a second frame receiving point 17 by a coupling.

The spiral spring sections 13, 14 are in particular rotatably coupled to the respective steering knuckle 8, 9. In the embodiment shown in FIG. 1 and FIG. 2, the rotatable coupling is produced by a rotary joint 15 producing the first knuckle receiving point 26 and second knuckle receiving point 27.

Since the mechanical action of the spiral spring 12 on the steering knuckle elements 6, 7 is determined by the lever between the respective axle pivot 4, 5 and the respective pivot point 15, in Figure 1 and in Figure 2, the effective steering knuckles 8, 9 symbolized by the lever shown dashed line. Upon rotation of the steering knuckle elements 8, 9 about the respective axle pivot 4, 5, the respective bending spring section 13, 14 undergoes a deformation. The deformation is in the main a bend, which bending of the spiral spring sections 13, 14 is created by a deflection force F. The deflection force F necessary for bending the spiral spring sections 13, 14 increases because of the arrangement of the spiral spring sections 13, 14 relative to the respective steering knuckle 8, 9 with the angular amount of rotation of the steering knuckle 8, 9. This is particularly advantageous in the inventive use of the steering in a scooter, since the deflection force F is the higher, the more the user leans to the side. The deformed bending spring 12 supports the return movement of the user for a subsequent straight ahead.

The bending movement of the bending spring sections 13, 14 is substantially similar to the rotation of the steering knuckles.

The spiral spring sections 13, 14 and the frame 1 are coupled to the first frame receiving point 16 and to the second frame receiving point 17, which frame receiving points 16, 17 by displacement 19 of an adjusting device 18 are adjustable relative to the bending spring. The frame receiving points 16, 17 are objected to by the respective axle pivot points 4, 5. The adjusting device 18 causes a common locations of the frame receiving points 16, 17, which offers a high level of operating comfort. By moving 19 of the adjusting device 18, the bending spring sections 13, 14 and thus the frame receiving points 16, 17 are displaced relative to the rotary joint 15, whereby the effective spring lengths II, 12 are changed as an effect of the adjusting device 18. The person skilled in the art recognizes that the spring force acting against a rotation of the steering knuckles 8, 9 can thus be adjusted by the displacement 19 of the adjusting device 19.

In the embodiment shown in Figure 1 and Figure 2, the effective spring length II, 12 is greater than or equal to the length of the knuckle 8, 9th

The stub axle receiving points are not adjustable in the embodiment shown in Figure 1 and Figure 2.

A displacement 19 of the adjusting device 18 until engagement with the steering knuckle elements has the further effect of preventing a rotation of the steering knuckle elements 8, 9. The steering is blocked.

The knuckles 8, 9 are coupled by the tie rod 21.

The embodiment of the steering system according to the invention shown in Figure 3 and Figure 4 again relates to the application for a scooter. Figure 3 and Figure 4 show a view of the scooter together with the invention steering from below.

The steering system shown in Figure 3 and Figure 4 substantially corresponds to the steering shown in Figure 1 and Figure 2, wherein the following differences are shown.

The spring sections 13, 14 are coupled by means of a plug connection 20 with the stub axles 8, 9. The connector 20 is - in contrast to the rotary joint 15 in Figure 1 and Figure 2 - a rigid connection, which rigid connection forms the steering knuckle points 26,27. The bending spring sections 13, 14 are deformed by the connector by a bending moment force M and by a deflection F.

The first spiral spring portion 8 and the second spiral spring portion 9 are formed integrally. Upon bending of one of the spiral spring sections 8, 9 experiences - following the usual teaching - a bend.

Figure 5 and Figure 6 show a third embodiment of the steering system according to the invention in straight position or inclined position of the wheels. Similar to the second embodiment, the first bending spring portion 13 and the second bending spring portion 14 are integrally formed. In contrast to the second embodiment, the spiral spring sections 13, 14 are mounted on a frame receiving point 16.

FIG. 7 and FIG. 8 show a fourth embodiment of the steering according to the invention in the straight position or in the inclined position of the wheels, the fourth embodiment having similarities to the embodiments described above. Figure 7 and Figure 8 show here the scooter together with the steering system according to the invention in a view from below.

The steering comprises a first knuckle element 6, which is rotatably mounted on the frame 1 about a first knuckle element pivot point 4, with a first knuckle 8 and a second knuckle element 7, which is rotatably mounted on the frame 1 about a second knuckle element pivot point, with a second knuckle 9. At the respective steering knuckle elements, a first wheel 1 and a second wheel 2 are mounted by means of a first wheel axle 10 or by means of a second wheel axle 11. The wheels 1, 2 are adjustable relative to the frame 1 of the scooter to change the direction of travel of the scooters.

The steering further comprises a bending spring 12, which bending spring 12 is in engagement with the first steering knuckle element 6 and the second steering knuckle element 7. The bending spring 12 contacted in a straight line of the wheels 2, 3, the steering knuckle elements 6.7.

Upon rotation of the first stub axle element 6 about the first stub axle pivot 4, the first stub axle 8 is moved relative to the bending spring 12. In this rotation of the first knuckle member 6 to the right shown in Figure 8, the first knuckle 8 is not moved against the bending spring 12, so that the bending spring 12 undergoes no deformation as a result of the movement of the first edge 22. The spiral spring 12 and the first stub axle 8 are in no engagement.

Upon rotation of the second steering knuckle element 7 about the second axle pivot 5, the second steering knuckle 9 is moved relative to the bending spring 12. In the case of the rotation of the second knuckle element 7 to the right shown in FIG. 8, the second knuckle 9 is moved against the bending spring 12 so that the bending spring 12 undergoes a deformation as a result of the movement of the second edge 23. During this rotation of the second stub axle 9 to the right, the bending spring 12 and the second stub axle 9 are in no engagement.

The deformation of the spiral spring 12 according to the movement of the second edge 23 shown in Figure 8 - following the usual teaching - in the main a deformation, in particular a bend of the second bending spring portion 14. The second edge 23 acts as a rotary joint 15. The bending spring 12 is only loaded in the second Beige spring section 14 by a force F. The force F is connected to the rotation of the second steering knuckle 7.

The person skilled in the art recognizes that, as in the position of the wheels 2, 3 to the right in FIG. 8, the first steering knuckle 8 deforms the bending spring 12 to the right, in the main a bend of the first spiral spring section 13 would cause a movement of the first edge 22 against the bending spring 12.

The edges 22, 23 thus form the stub axle receiving points 26, 27. A relative movement between the edges 22, 23 and the bending spring sections 13, 14 and a change in the effective spring length II, 12 caused thereby have no appreciable influence on the necessary steering force F. Such a relative movement would be too small in terms of magnitude.

Since in mechanical view the effect of the spiral spring 12 on the steering knuckle elements 6, 7 by the dashed registered lever, which extends between the Achsschenkeldrehpunkten 4, 5 and the edges 22, 23 is determined, this lever also forms the respective stub axle 8.9 ,

The bending spring 12 is non-rotatably connected to the frame 1 by a first frame receiving point 12 and by a second wheel receiving point 13.

The steering further comprises a tie rod 21 according to the prior art, which couples the first steering knuckle element 6 and the second steering knuckle element 7 with each other.

9 and 10 show a fifth embodiment of the steering system according to the invention with a scooter with a straight position or a curve position of the wheels 2, 3. The steering comprises two adjustable relative to a frame of the scooter wheels 2, 3 and a first about a first knuckle element pivot point 4th rotatably mounted on the frame 1 first steering knuckle member 6 with a first knuckle 8 and a second about a second knuckle pivot 5 rotatably mounted on the frame 1 second kingpin element 7 with a second knuckle. 9

The steering knuckles 8, 9 are coupled to a bending spring 12 connecting the steering knuckles 8, 9. The flexure of the spiral spring 12 with the first stub axle 8 and the second stub axle 9 is effected by a rigid connection 24. The rigid connection 24 takes place in the embodiment shown in Figure 9 and Figure 10 such that the voltage applied to a side edge of the first stub axle 6 Biegefeder 12 is fixed by a bolt on the first stub axle 6. The connection between the spiral spring 12 and the second steering knuckle element 7 is analogous. The beige stiff connections 24 thus form the Achsschenkelaufnahmepunkte 26,27.

The effect of the spiral spring 12 on the movement of the steering knuckle elements 6, 7 is determined by the lever, which extends between the respective axle pivot 4, 5 and the rigid connection 24 and is entered by a dashed line. This lever is regarded as a steering knuckle 8.9.

The steering further comprises an approximately disposed in the middle of the bending spring actuator 18, which prevents deformation of the bending spring 12 in the direction of the adjusting device 18. As can be seen in Figure 10, the deformation, in particular the bending line of the bending spring 12 is limited by the adjusting device 18. There is no mechanical connection between the actuator 18 and the bending spring 12. The bending spring 12 can move away from the actuator 18 or deform and

The adjusting device 18 divides the bending spring 12 into a first spiral spring section 13 and a second spiral spring section 13. The first spiral spring section 12 has an effect on the first wheel 2, the second bev spring section 13, in the main, has an effect, following the usual teaching the second wheel 3.

The steering system further comprises a connecting rod 21 connecting the steering knuckle elements 6, 7, as is known from the prior art.

Figure 11 and Figure 12 show a sixth embodiment, which is similar to the fifth embodiment. In contrast to the fifth embodiment, the steering according to the invention comprises two adjusting devices 18, 18 ', which can be displaced parallel to the undeformed spiral spring 12. By moving the actuators 18,18 'the effective spring length II, 12 and thus the spring action is changed.

FIG. 13 and FIG. 14 show a seventh embodiment of the steering system according to the invention, which steering, unlike the embodiments described above, does not include a track rod 21. The bending spring 12 takes over the effect of the tie rod, namely the coupling of the movement of the first stub axle 6 and the second stub axle element 7. To achieve this effect, the skilled person arranges adjacent to the center of the spiral spring 12, an adjusting device 18. The adjusting device 18 prevents the bending spring 12 from "breaking through" upon rotation of the second steering knuckle element 7, as shown in FIG. 14, that is to say that the movement of the second steering knuckle element 7 is transmitted only to the bending spring 12 and not to the first steering knuckle element 7.

The person skilled in the art chooses to operate the bending spring 12 as a tie rod an extension length of the adjusting device 18 parallel to the bending spring 12 as a function of the effective spring lengths to be achieved II, 12. Those skilled in the art will recognize that the maximum effective spring lengths II, 12 by the stiffness of the spring stiffness Bending spring 12 is specified.

Figure 15 and Figure 16 show an eighth embodiment of the steering system according to the invention for a scooter. The stub axle elements 6, 7 rotatably mounted about the stub axle pivots 4, 5 are coupled by a tie rod 21. It also extends a spiral spring 12 between the steering knuckle elements 6, 7, wherein between the Achsschenkeldrehpunkten 4, 5 and the Achsschenkelaufnahmepunkte 26, 27, the stub axles 8, 9 extend as a mechanical lever. The bending spring 12 is spaced from the tie rod 21 by the distance D, so that at a curve position of the wheels 2,3, the bending spring 12 undergoes a deformation.

The deformation of the spiral spring 12 is due to the different size rotation of the first knuckle member 6 and the second knuckle member 7. The deformation of the spiral spring 12 is dependent on the distance D.

The stub axle receiving points 25, 26 are executed in the embodiment shown in Figure 15 and Figure 16 as beigeesteife compounds 24. The rigid connection 24 comprises a hole (not shown) provided in the respective knuckle element 6, 7 into which hole the bending spring 12 is introduced. The stub axle elements 6, 7 may comprise a plurality of spaced holes, so that the distance D can be set by the choice of the holes and thus the extent of the deformation of the spiral spring.

FIG. 17 and FIG. 18 show a ninth embodiment of the steering system according to the invention for a scooter. The steering comprises about Achsschenkelelementdrehpunkt 4, 5 rotatably mounted Achsschenkelelemente 6, 7, each with a steering knuckle 8, 9 and relative to the frame 1 of scooter adjustable wheels 2, 3. The wheels 2, 3 are on the knuckle member 6, 7 by the respective wheel axle 10,11 stored.

The stub axle elements 6, 7 comprise elastic elements. In particular, the stub axles 8, 9 are designed as such elastic elements, which stub axles 8, 9 as elastic elements with an associated frame receiving point 16, 17 in a curve position of the wheel 2, 3 are engaged. As a result of the rotation of the stub axle element 6, 7, the stub axles 8, 9 designed as elastic elements undergo an elastic deformation. This elastic deformation or the resulting resistance counteracts the steering movement.

The knuckle members 6, 7 are made of hard nylon, for example. The elastic elements are soft injected PU.

FIG. 19 and FIG. 20 show a tenth embodiment of the steering system according to the invention for a scooter. The steering comprises - same as the eighth embodiment - about a Achsschenkelelementdrehpunkt 4, 5 rotatably mounted Achsschenkelelemente 6, 7, each with a steering knuckle 8, 9 and relative to the frame 1 of scooter adjustable wheels 2, 3. The wheels 2, 3 are on the steering knuckle element 6,7 stored by the respective wheel axle 10,11.

The stub axles 8, 9 are in a curve position of the wheel 2, 3 with an associated frame receiving point 16, 17 are engaged. The frame support points 16, 17 are formed as elastic elements. Due to the rotation of the steering knuckle element 6, 7, the steering knuckles 8, 9 experience a rotation, which rotation causes an elastic deformation of the frame receiving points 16, 17. This elastic deformation or the resulting resistance counteracts the steering movement.

Claims (10)

1. Steering for a scooter comprising at least one about a Achsschenkelelementdrehpunkt (4,5) rotatably mounted Achsschenkelelement (6,7) with a steering knuckle (8,9) and at least one relative to a frame (1) of the scooter adjustable wheel (2, 3), which wheel (2, 3) is mounted (10, 11) on the knuckle element (6, 7) by a wheel axle, characterized in that the steering comprises an elastic element, which elastic element has a frame receiving point (16, 17). and / or stub axle receiving point (26, 27) is engaged at a curve position of the wheel (2, 3) and undergoes a deformation caused by the rotation of the stub axle member (6, 7). 2. Steering according to claim 1, characterized in that a bending spring (12) as an elastic element at a Achsschenkelaufnahmepunkt (26,27) with the stub axle (8,9) and the frame receiving point (16,17) is engaged, so at a Curved position of the wheel (2,3) the bending spring (12) undergoes a deformation. 3. Steering according to one of claims 1 to 2, characterized in that Achsschenklaufnahmepunkt (26,27) relative to the bending spring (12) for adjusting the effective spring length (11,12) is adjustable. 4. Steering according to one of claims 1 to 3, characterized in that the bending spring (12) and the support (1) in a Auflageraufnahmepunkt (16,17) are engaged, which Auflageraufnahmepunkt (16,17) relative to the bending spring (12 ) for adjusting the effective spring length (11,12) is adjustable. 5. steering system for a scooter comprising a first knuckle element (6) rotatably mounted about a first knuckle element pivot point (3) with a first knuckle (8), a second knuckle element (7) rotatably mounted about a second knuckle element pivot point (4) with a second knuckle (FIG. 9), at least one wheel (2, 3) adjustable relative to the frame (1), which wheel (2, 3) is mounted on one of the steering knuckle elements (6, 7) by a wheel axle (10, 11), characterized a bending spring (12) engages with the first knuckle element (6) and with the second knuckle element (7) during a rotation of the first knuckle element (6) and / or during a rotation of the second knuckle element (7), so that, in the case of a curve position of the wheel (2,3) the bending spring (12) undergoes a deformation. 6. Steering according to claim 5, characterized in that the bending spring (12) with the first steering knuckle element (6) and the second steering knuckle element (7) is coupled. 7. Steering according to one of claims 5 to 6, characterized in that the bending spring (12) and the steering knuckle elements (6,7) in a first Achsschenkelaufnahmepunkten (26) or in a second Achsschenkelaufnahmepunkten (27) are engaged, wherein at least one Achsschenkelaufnahmepunkt (26,27) relative to the bending spring (12) for determining the effective spring length (11,12) is adjustable. 8. Steering according to one of claims 5 to 7, characterized in that the bending spring (12) is coupled to a frame receiving point (16,17) with the frame (1). 9. steering system according to claim 8, characterized in that the frame receiving point (16,17) relative to the bending spring (12) for adjusting the effective spring length (11,12) is adjustable. 10. Steering according to one of claims 1 to 9, characterized in that the steering comprises a tie rod (21).