A children's vehicle comprising a rotary steering and a weight transfer steering

Abstract

A children's vehicle comprising a chassis (1) and at least two adjustable wheels (2, 3, 2', 3'), wherein at least one wheel (2, 3, 2', 3') is connected to the chassis (1) via a weight transfer steering mechanism (15) and is adjustable in the curve direction (17) when the weight transfer steering mechanism (15) is actuated, the wheels (2, 3, 2', 3') are mounted on at least one wheel suspension element (5, 8, 5', 8') so as to be rotatable about their respective axles (6, 7, 6', 7'), the wheel suspension elements (5, 8, 5', 8') are mounted on the chassis (1) so as to be rotatable about at least one wheel suspension rotation axis (7, 14, 7', 14'), the wheel suspension rotation axes (7, 14, 7', 14') are tilted by a certain inclination with respect to the vertical, at least one wheel (2, 3, 2', 3') can be adjusted in the curve direction (17, 18) by a rotary steering mechanism (16), and a handlebar (12) is connected to the wheel suspension elements (5, 8, 5', 8') via a connection system (13).

Description

【Technical Field】 【0001】 The present invention relates to a children's vehicle as described in the opening part of claim 1. 【0002】 The present invention relates to a children's vehicle including a chassis and at least two wheels. 【0003】 Furthermore, the present invention relates to a steering including a weight transfer steering and a rotation steering for adjusting the wheels of the children's vehicle. 【0004】 Furthermore, the invention disclosed below relates to a single steering. The invention disclosed below is not limited to the embodiments of the children's vehicle described as examples. 【0005】 The children's vehicle or the steering of the children's vehicle is characterized by the running characteristics, size, etc. of the vehicle and / or the steering adapted to the sensory ability and motor ability of the child. The vehicle and / or the steering can be configured to promote the development of such abilities. 【Background Art】 【0006】 The children's vehicle may be, for example, a scooter that a child can ride in a sitting or standing position. There is known from the prior art a scooter that can be inserted into the chassis via a console or is hinged and has an element that can be converted from a position as a seat element to a position as a holding element so that a child can take a standing or sitting position on the scooter. 【0007】 There is further known a scooter having a holding rod and a seat that can be arranged on the holding rod (see European Patent No. 2476607). A child can take a standing or sitting position on such a scooter, and for that purpose, the seat must be attached or removed. 【0008】 The prior art scooter described above as an example has a single steering. However, such scooters known in the prior art exhibit significant drawbacks. Standing children are assumed to be able to more easily operate weight shift steering, while sitting children are assumed to be able to more easily operate rotational steering. Since such characteristics vary from child to child, a general explanation in this regard is impossible. 【0009】 In the prior art, scooters are sometimes called kickboards. Similarly, skateboards with holding rods can also be called scooters. Furthermore, there is also a general term for mounting vehicles for children. 【0010】 German Patent Specification No. 69320335 and US Patent No. 4133546 describe vehicles with weight shift steering. French Patent Specification No. 2822430, US Patent Application Publication No. 2014224556, US Patent No. 883371, and Chinese Patent No. 104369817 describe vehicles with rotational steering. Even those skilled in the art would not obtain from the above-mentioned documents the motivation to add rotational steering to a vehicle with weight shift steering (or vice versa), or to combine the above-mentioned steering mechanisms with each other. 【Prior Art Documents】 【Patent Documents】 【0011】 【Patent Document 1】 European Patent No. 2476607 Specification 【Patent Document 2】 German Patent Specification No. 69320335 【Patent Document 3】 US Patent No. 4133546 Specification 【Patent Document 4】 French Patent Specification No. 2822430 【Patent Document 5】 U.S. Patent Application Publication No. 2014 / 224556 [Patent Document 6] U.S. Patent No. 883,371 [Patent Document 7] Chinese Patent No. 104369817 [Summary of the Invention] [Problems to be Solved by the Invention] 【0012】 The invention disclosed in this specification aims particularly at a children's vehicle configured according to a standing riding posture or a sitting riding posture of a child. 【0013】 The present invention has the problem of combining the advantages of weight transfer steering known in the prior art for children's vehicles and the advantages of rotary steering known in the prior art. In particular, the invention disclosed in this specification has the problem of combining the above advantages in a single steering. The above term "steering" is understood to mean a component of a vehicle that can be directly or indirectly operated and / or set to determine the traveling direction of a vehicle rolling on the ground by a user setting the wheels of the vehicle in a turning direction and thus in a variable traveling direction. [Means for Solving the Problems] 【0014】 According to the present invention, this is achieved by claim 1 and / or claim 2. 【0015】 The basic technical solution of the present invention is to connect a weight transfer steering known in the prior art and a rotary steering known in the prior art to each other via a mechanical limiting system (hereinafter referred to as a "forced steering system"). This connection using a mechanical limiting steering system is such that as long as the weight transfer steering and the rotary steering are connected by the mechanical limiting steering system, one steering from the group including the weight transfer steering and the rotary steering cannot be operated alone. 【0016】 A mechanical constraint steering system between two movable elements generally features that the movement of one movable element depends on the movement of the other movable element. A mechanical constraint steering system between two movable elements generally features that the movement of one movable element depends on the movement of the other movable element. The movement of one movable element needs to release the movement of the said one movable element by releasing the movement of the other movable element. The separated movement of only one movable element is impossible. As a result, only the degree of freedom corresponding to the movement of one element decreases the number of degrees of freedom of the other element. 【0017】 The mechanical constraint system may be non-releasable or may be made releasable. In a releasable constraint system, the user can disconnect the movement of the element. 【0018】 A mechanical constraint system that connects weight transfer steering and rotational steering is called a mechanical constraint steering system in the context of the disclosure of the present invention. The term "constraint system" is extended to include the term "steering" because this constraint system or "constraint steering system" connects the steerings to each other. 【0019】 The constraint steering system may be non-releasable or may be made releasable. By releasing the constraint steering system, the user can select the steering from the weight transfer steering and the rotational steering. 【0020】 The solution proposed by the present invention is at least one wheel is connected to the vehicle chassis via weight transfer steering and can be set in the turning direction by actuating the weight transfer steering, the first wheels are supported on respective first wheel suspension elements so as to rotate about a first vehicle axle, the first wheel suspension elements are supported on the vehicle chassis so as to rotate about a first wheel suspension rotation axis, The first wheel suspension rotation axis is inclined towards the vertical plane by the first inclination, At least one second wheel can be set in a second turning direction using rotational steering, The second wheel is supported on a second wheel suspension element so as to rotate about a second axle, The second wheel suspension element is supported on the vehicle body so as to rotate about a second wheel suspension rotation point, A rotational handlebar is connected to the second wheel suspension element via a second connection system, The weight transfer steering and the rotational steering are connected via a mechanical limit steering system, The mechanical limit steering system connects the movements of the first wheel suspension element and the second wheel suspension element as at least one element connecting the first wheel suspension element and the second wheel suspension element such that the setting of the first wheel adjustable by the weight transfer steering and / or the second wheel adjustable by the rotational steering in the same turning direction is achieved. This can be achieved in some cases. 【0021】 By definition, the first wheel suspension element of the weight transfer steering is supported so as to rotate about a first wheel suspension rotation axis. The possible rotational movement of the first wheel suspension element is determined by the first wheel suspension rotation axis. The first wheel suspension rotation axis can be inclined forward or backward when viewed in the travel direction. For example, other inclinations are possible in the prior art to achieve certain driving dynamics (fall, spread, low-in). 【0022】 The inclination of the first wheel suspension rotation axis, particularly the forward or backward inclination, creates an unstable position of the first wheel suspension element. As a result, the setting of the first wheel suspension element is achieved by changing the force momentum (and / or, optionally, force) acting on the wheel suspension element or the force momentum (and / or, optionally, force) transmitted by the first wheel suspension element. The first wheel suspension element can rotate about the wheel suspension rotation axis within a movement plane extending perpendicularly from the first wheel suspension rotation axis. 【0023】 The second wheel suspension element is supported to rotate about the second wheel suspension rotation point. The second form of movement of the second wheel suspension element does not necessarily have to be limited to the second movement plane when the second wheel suspension element is hinged via the second wheel suspension rotation point. The point-like hinging of the second wheel suspension element can be established, for example, via a ball joint, and those skilled in the art are aware of further forms of point-like hinging. 【0024】 The first wheel suspension element and / or the second wheel suspension element may be composed of a single part or multiple parts, and these parts may have elastic or rigid body characteristics. This feature of being formed by a rigid or elastic material in one or multiple parts is generally applicable to all elements of the vehicle that are generally referred to as part of the disclosure of the present invention. 【0025】 The rotary steering is characterized by rotating the rotary handlebar about the rotation axis to achieve the setting of the wheels. The rotary handlebar can be rotated about its longitudinal axis as the rotation axis. A steering mechanism is required to transmit the rotational movement of the rotary handlebar as the setting movement for setting the wheels, and this steering mechanism is known to those skilled in the art in the prior art. 【0026】 The rotary handlebar and / or the rotary axis can be formed from a single element or multiple elements. This can also be achieved by providing a hinge or multiple hinges or deformable elements between sub-regions of the axis and / or sub-regions of the rotary handlebar. The elements of the rotary handlebar may be guided with respect to each other and be configured to be nested. The elements of the rotary handlebar may be connected via gears, shafts (by way of example and not limitation, such as a cardan shaft), or deformable elements. 【0027】 The rotary movement of the rotary handlebar causes the movement of a wheel suspension element about a wheel suspension rotation point, and as a result, a wheel hinged to the wheel suspension element is set. 【0028】 A second connection system connects the movement of a wheel suspension element that can be set via a rotary steering and the rotary movement of the rotary handlebar. In the prior art, this connection is achieved, for example, via a steering gear or the engagement of the rotary handlebar and the wheel suspension element, but a person skilled in the art can also provide an intermediate element such as a tie rod formed as a single element or multiple parts. 【0029】 The second connection system may be formed such that the setting of the wheel that can be set by the rotary steering conditions the movement of the elements of the rotary steering and vice versa. Further, the second connection system may be formed such that the setting of the wheel that can be set by the rotary steering does not condition the movement of the elements of the rotary steering, but rather, conversely, the actuation of the rotary steering conditions the setting of the wheel that can be set via the rotary steering. 【0030】 The second connection system may be formed such that the movement of a first wheel suspension element conditions the movement of the rotary handlebar. Thus, the user can permit or prevent the setting of the first wheel suspension element of the weight transfer steering via the rotary handlebar. 【0031】 A person skilled in the art can connect the movement of the wheel suspension element via a mechanical limited steering system by applying their general expertise. The mechanical limited steering system may include at least one element such as a rigid element or a deformable element, which is hinged to the first wheel suspension element and the second wheel suspension element. The element may be formed from a single part or from multiple parts. The element formed as a single part or multiple parts of the element may have characteristics or elasticity as a rigid body. 【0032】 The element may include a wheel or a gear or a rod element. The rod element may have an axis of linear extension or an axis of rod extension that curves once or multiple times. 【0033】 The element may be hinged to one of the wheel suspension elements by arranging a further element, and the further element is arranged between the element and the wheel suspension element. 【0034】 The element may be arranged on or hinged to the first wheel suspension element at a distance from the first wheel suspension rotation axis, and may be arranged on or hinged to the second wheel suspension element at a distance from the second wheel suspension rotation point. This arrangement has the technical effect that the movement of the first wheel suspension element conditions the movement of the second wheel suspension element. A person skilled in the art can also arrange the element at other points of the weight transfer steering or the rotational steering (for example, the second tie rod, the second connecting element, or the rotating handlebar) to achieve a similar effect. 【0035】 The setting of the wheels in the turning direction may be such that the wheels are set in the same setting direction or different setting directions, as can be seen from the following figures. Preferably, when the wheels are set in a single turning direction, the geometric beam passing through the axles of the wheels intersects at a single instantaneous pole. The geometric beams of the non-adjustable wheels and / or the axles of the adjustable wheels may also extend through the instantaneous pole. 【0036】 The setting of at least one wheel may be conditional on the biasing of a spring, which may be hinged to either a stationary element or a movable element. In addition to this, or alternatively, the spring may be hinged to two elements that move relative to each other. Thus, as long as the above conditions are met, the spring may be arranged in one of the vehicle chassis, wheel suspension elements, tie rods, and / or the forced steering system. 【0037】 According to the solution according to the above proposal, among other things, the first wheel is set by weight transfer steering, the second wheel is set by rotary steering, and the operation of adjusting the wheels or the operation of steering the steering system are forcibly linked. 【0038】 However, it is also possible for weight transfer steering and rotary steering connected via a mechanical limit steering system to adjust a single wheel or two wheels (the left-side wheels and right-side wheels of the vehicle). 【0039】 According to the present invention, the above problem is also solved by claim 2. 【0040】 Another solution according to the present invention is the wheels are connected to the vehicle chassis via weight transfer steering and can be set in the turning direction by actuating the weight transfer steering, the wheels are supported on at least one wheel suspension element so as to rotate about their respective axles, The wheel suspension element is supported on the vehicle body so as to rotate about at least one wheel suspension rotation axis. The wheel suspension rotation axis is inclined toward the vertical plane by a first inclination. The wheel can be set in the turning direction using a rotary steering. The rotary handlebar is connected to the wheel suspension element via a connection system. The weight transfer steering and the rotary steering are connected via a mechanical limit steering system. The mechanical limit steering system is formed by the integral formation of at least one wheel suspension element so that adjustment in the same turning direction of the wheel that can be adjusted by the weight transfer steering and / or the rotary steering is achieved. It can be characterized by this. 【0041】 The solution according to the second proposal may also relate to only one wheel. 【0042】 According to a modification of the second solution, the wheel is adjusted via the weight transfer steering and the rotary steering. The wheels may be, for example, the left wheel and the right wheel. 【0043】 In a modification of the second solution, it is also possible for only one wheel to be set via the weight transfer steering and the rotary steering. The other wheel may not be adjustable via steering, for example. The other wheel may be arranged non-adjustably on the vehicle, or may be arranged on the vehicle as a freely rotatable wheel. 【0044】 The connection between the rotary steering and the weight transfer steering may also involve a learning effect for children or infants. Children, especially infants, often cannot operate vehicles such as kick scooters solely via the weight transfer steering. In many cases, it is easier for children to operate vehicles such as riding toys via the rotary steering. 【0045】 The mechanical connection between the rotary steering and the weight transfer steering is such that when the rotary steering is set, the vehicle of the present invention, in particular the footrest of the vehicle of the present invention, is converted to an inclined position, and this inclined position is equal to the inclined position typically applied when operating the weight transfer steering. In other words, operating the rotary steering also conditions the conversion of the footrest to the above-mentioned inclined position. Thereby, the child learns how to use the weight transfer steering. 【0046】 The children's vehicle of the present invention is characterized in that a second wheel suspension rotation axis extends vertically through a second wheel suspension rotation point can be characterized by this. 【0047】 The term "extends vertically" as described above is understood to mean that each axis or straight line extends to a vertical position within the vehicle standing on a horizontal ground. The axis extends parallel to the direction of the force of the weight to be redirected within the upright vehicle. The term "vertical plane" is generally used in the context of children's vehicles such as scooters. Defining an axis or straight line that extends vertically with respect to other elements of the scooter is not possible because these elements, such as the footrest of the scooter, can have arbitrary positions. The above-mentioned vertical position is essential for the driving characteristics of the vehicle, and this driving characteristic is essentially determined by the position of the ground. 【0048】 When the tread of the scooter extends horizontally, the second wheel suspension axis may be arranged vertically, and thus at an angle of 90° from the tread. 【0049】 By providing the second wheel suspension rotation axis, the second movement of the second wheel suspension element is restricted to a second movement plane directed at a right angle from the second wheel suspension rotation axis. 【0050】 When two elements move within two kinematic planes, a mechanical constraint steering system can be formed in its simplest form by wheels or gears, or by a connecting element hinged to both elements. The mechanical constraint steering system must optionally balance the movements in the respective different kinematic planes of the two elements. 【0051】 The children's vehicle of the present invention A second wheel suspension rotation axis extending through a second wheel suspension rotation point extends at a second inclination with respect to the vertical plane can be characterized by. 【0052】 The second wheel suspension rotation axis may extend parallel to the first wheel suspension rotation axis. In this case, the mechanical constraint steering system does not need to balance the different forms of movement of the elements moving in different kinematic planes. 【0053】 A person skilled in the art can also provide a second wheel suspension rotation axis that is point-like and thus hinged to the vehicle chassis and adjustable. Such a point-like hinge can be established, for example, via a ball joint in the prior art, and a person skilled in the art is aware of other forms of point-like hinges. 【0054】 The children's vehicle of the present invention The wheel suspension element is supported so as to rotate about a wheel suspension inclination axis can be characterized by. 【0055】 An inclination steering that enables a rotational movement of a wheel suspension element about an inclination axis essentially parallel to the direction of travel (when going straight) or the central axis of the vehicle is known from the prior art. 【0056】 The children's vehicle of the present invention The weight transfer steering comprises a force application element can be characterized by. 【0057】 The force application element transmits the force acting directly or indirectly on the force application element to the weight transfer steering, and the changed force state caused by the force causes the operation of the weight transfer steering. The force application element may be formed by a vehicle chassis or a holding rod. 【0058】 The user can be located on the vehicle chassis such as on the tread and create a changed force state by changing their position. Further, the user may be located on an element connected to the vehicle chassis or the holding rod and create a changed force state by changing the position. A seat connected to the holding rod is known in the prior art, and a human can change their position on this seat to operate the weight transfer steering. 【0059】 The user can hold the holding rod. 【0060】 The rotary handlebar may be formed as a holding rod and thus act as a force application element. 【0061】 The children's vehicle of the present invention The rotary steering includes a rotary handlebar and optionally a controller, The mechanical limit steering system connects the movement of the rotary handlebar and the movement of the wheel suspension element and can be characterized by this. 【0062】 The rotary steering may include a single rotary handlebar. 【0063】 The user grasps the controller with their hand. Thereby, the user can permit or prevent the setting of the first wheel suspension element and the second wheel suspension element. 【0064】 As described above, the second wheel suspension element is connected to the rotating handlebar via a mechanical limit steering system. Such a rotary steering is known to those skilled in the art. The mechanical limit steering system connects the settings of the wheel suspension element. 【0065】 Comprising at least two first wheels, A children's vehicle according to the present invention, wherein each first wheel is supported to rotate about a wheel suspension pivot point via a wheel suspension element, The first wheel suspension element and the second wheel suspension element are integrally formed, A rotating handlebar is connected to each wheel suspension element, A forced steering system connects the movement of the rotating handlebar which can be characterized by. 【0066】 The integral formation of the wheel suspension element conditions the integral formation of the wheel suspension axis. Since the first wheel suspension axis is inclined towards the vertical plane according to the definition, this embodiment conditions that the second wheel suspension axis is equally inclined. 【0067】 The rotating handlebar is rotatable about its longitudinal axis and can thus cause the movement of the second wheel suspension element. Such movement of the rotating handlebar is common in children's vehicles such as scooters with rotary steering. The rotating handlebar can be further rotated by the user about different points or axes to cause the operation of the rotary steering. The rotating handlebar may be supported to rotate about the wheel suspension rotation axis to operate the rotary steering. 【0068】 The mechanical limit steering system can be formed by an element connected to the rotating handlebar. The element can form a handle. The element can also be firmly connected to the rotating handlebar. 【0069】 The children's vehicle of the present invention can be characterized in that the first wheel and the second wheel are integrally formed. 【0070】 Accordingly, the wheels that are to be regarded as the first wheel and the second wheel in the context of the present disclosure are hinged to one wheel suspension element. One wheel suspension element is to be regarded as the first wheel suspension element and the second wheel suspension element in the context of the present disclosure, and the first wheel suspension element and the second wheel suspension element are integrally formed. One wheel is hinged to one wheel suspension element via an axle. 【0071】 The integral formation of the first wheel and the second wheel as one wheel is by no means limited to the integral formation of the wheel suspension element. One wheel may be connected to the first wheel suspension element and the second wheel suspension element. 【0072】 Weight transfer steering and rotational steering result in a setting of one wheel. 【0073】 When the first wheel and the second wheel are integrally formed, the children's vehicle of the present invention A mechanical limit steering system is formed as an integrally formed wheel suspension element and can be characterized in that. 【0074】 The mechanical limit steering system may be formed by further integrally formed elements of weight transfer steering and rotational steering, such as tie rods and wheel suspension rotation axes. A person skilled in the art can combine the integral formation of a plurality of elements of rotational steering and weight transfer steering in this case. 【0075】 The children's vehicle of the present invention is such that the first wheel and the second wheel are different wheels can be characterized by. 【0076】 Accordingly, the first wheel is set via weight transfer steering, the second wheel is set via rotational steering, and the weight transfer steering and the rotational steering are connected via a mechanical limit steering system. The setting of the first wheel always conditions the setting of the second wheel, and vice versa. 【0077】 In principle, the following embodiments are possible. 【0078】 A children's vehicle comprising two first wheels and at least one second wheel, wherein the first wheels can be set via weight transfer steering, at least one second wheel can be set via rotational steering, and the weight shift steering is connected to the rotational steering via a mechanical limit steering system. 【0079】 A children's vehicle comprising two first wheels and two second wheels, wherein the first wheels and the second wheels are integrally formed, and the weight shift steering and the rotational steering are connected via a mechanical limit steering system. 【0080】 The embodiments of the scooter of the present invention mentioned can comprise at least one further wheel, such as a rear wheel, which is not configurable and is not hinged to the chassis via prior art steering. 【0081】 A children's vehicle comprising two wheels, the two wheels being formed as a first wheel and a second wheel. The two wheels can be set by weight transfer steering and rotational steering, and the weight transfer steering and the rotational steering are connected to each other via a mechanical limit steering system. 【0082】 The vehicle of the present invention can be provided with a steering lock and / or a steering damper. The steering lock can, for example, prevent and / or suppress the movement of a forced steering system. 【0083】 Next, the present invention will be described based on the following embodiments shown in the drawings. The drawings show embodiments of a scooter of the present invention. 【0084】 It should be noted that the embodiments shown in the figures only show some possible embodiments. In this regard, the present invention is not limited to these specifically shown variant embodiments. Rather, combinations of variants of individual embodiments and combinations of one embodiment with the above general description are possible. Since these further possible combinations are within the scope of the skills and knowledge of those skilled in the relevant technical field based on the technical teachings of the present invention, there is no need to explicitly mention these further possible combinations. 【0085】 The present invention will be further described based on the following embodiments shown in the drawings. 【Brief Description of the Drawings】 【0086】 【Figure 1】 The figures and cross-sectional views of various embodiments of the steering for use in the vehicle of the present invention are shown. 【Figure 2】 The figures and cross-sectional views of various embodiments of the steering for use in the vehicle of the present invention are shown. 【Figure 3】 The figures and cross-sectional views of various embodiments of the steering for use in the vehicle of the present invention are shown. 【Figure 4】 The figures and cross-sectional views of various embodiments of the steering for use in the vehicle of the present invention are shown. 【Figure 5】 The figures and cross-sectional views of various embodiments of the steering for use in the vehicle of the present invention are shown. 【Figure 6】Figs. and cross-sectional views of various embodiments of the steering for use in the vehicle of the present invention are shown. 【Figure 7】 Figs. and cross-sectional views of various embodiments of the steering for use in the vehicle of the present invention are shown. 【Figure 8】 Figs. and cross-sectional views of various embodiments of the steering for use in the vehicle of the present invention are shown. 【Figure 9】 Figs. of various embodiments of the vehicle of the present invention are shown. 【Figure 10】 Figs. of various embodiments of the vehicle of the present invention are shown. 【Figure 11】 Figs. of various embodiments of the vehicle of the present invention are shown. 【Figure 12】 Figs. of various embodiments of the vehicle of the present invention are shown. 【Figure 13】 Figs. of various embodiments of the vehicle of the present invention are shown. 【Figure 14】 Figs. of various embodiments of the vehicle of the present invention are shown. 【Figure 16】 Figs. of various embodiments of the vehicle of the present invention are shown. 【Figure 15】 An exploded view of an embodiment of the steering for use in the vehicle of the present invention is shown. 【Figure 17】 Cross-sectional views of embodiments of the seat / holding element and the steering drive unit are shown. 【Figure 18】 Cross-sectional views of embodiments of the seat / holding element and the steering drive unit are shown. 【Figure 19】 Cross-sectional views of embodiments of the seat / holding element and the steering drive unit are shown. 【Figure 20】 Cross-sectional views of embodiments of the seat / holding element and the steering drive unit are shown. 【Figure 21】 Cross-sectional views of further embodiments of a scooter comprising an adjustable seat / holding element and a steering drive unit are shown. 【Figure 22】 Cross-sectional views of further embodiments of a scooter comprising an adjustable seat / holding element and a steering drive unit are shown. 【Figure 23】 A cross-sectional view of a further embodiment of a scooter with an adjustable seat / retaining element and a steering drive is shown. 【Figure 24】 A cross-sectional view of a further embodiment of a scooter with an adjustable seat / retaining element and a steering drive is shown. **DETAILED DESCRIPTION OF THE INVENTION** 【0087】 The scope of protection is determined by the claims. On the other hand, the specification and the drawings can be referred to for the interpretation of the claims. Individual features or combinations of features from the illustrated and described embodiments can themselves constitute separate inventive solutions. The objectives underlying those separate inventive solutions are understandable from the specification. 【0088】 In the figures, the following elements are indicated by the preceding reference numerals. Where necessary, only the important elements are indicated by their respective reference numerals in the figures. 【0089】 1 Frame 2, 2' First wheel 3, 3' Second wheel 4 Actuating element 5, 5' First wheel suspension element 6, 6' First axle 7, 7' First wheel suspension pivot axis 8, 8' Second wheel suspension element 9, 9' Second axle 10, 10' Second wheel suspension pivot point 11 Mechanical limit steering system 12 Rotatable handlebar 13 Second connection system 14 Second wheel suspension pivot axis 15 Weight transfer steering 16 Rotational steering 17 First turning position 18 Second turning position 19 First rail rod 20 Second rail rod 21 First straight-ahead position 22 Second straight-ahead position 23 Rear wheel 24 Brake 25 Brake element 26 Tread 27 Holding bar 28 Handle 29 Seat element 30 First tilt axis 31 Travel direction 32 Rotational movement 33 Cam lever 34 Rail rod lever 35 Pin 36 Distance 37 Hinge 38 Hinge surface of the rotary handle bar 12 or the handle bar 12’ 39 Hinge surface of the seat / holding element 40 Hinge axis 41 Intermediate rotary rod element 42 Rotary rod element 43 Further rotary rod element arranged within the seat / holding element 44 Gear 45 Recess at the free end of the seat / holding element 46 Recess of the seat / holding element 47 Further gear 48 Lock 49 Spring 50 Shaft 51 Shaft 52 Shaft 【0090】 Not necessarily all elements that are numbered in the drawings are mentioned and explained in the following description of the drawings. A person skilled in the art can interpret the meaning of the numbered elements based on the terms used in the above list. 【0091】 Reference numbers and reference numbers with reverse commas are used to refer to left / right elements as understood when viewing the vehicle from above, to the extent that they are considered appropriate by the author of this document. 【0092】 Regarding Figure 1: Figure 1 shows bottom views of two possible embodiments of a children's vehicle according to the present invention and steering for a children's vehicle. The left side of Figure 1 shows a children's vehicle having four configurable front wheels as the first wheels 2 and 3, and at least one rear wheel 23. The right side of Figure 1 shows a children's vehicle having two first configurable wheels 2 as front wheels and two second configurable wheels 3 as rear wheels. 【0093】 The left side of Figure 1 shows a children's vehicle, which comprises a vehicle body 1 and four wheels 2, 3 that can be set by steering as front wheels. 【0094】 The two first wheels 2 are connected to the vehicle body 1 via a weight transfer steering 15, and when the weight transfer steering 15 is actuated, it can be set to a first turning direction, and thus a turning position 17. In Figure 1, the first turning position 17 is represented by a dashed line, and the first straight-ahead position 21 is represented by a dotted line in Figure 1. 【0095】 Each of the first wheels 2 is supported on a first wheel suspension element 5 so as to rotate about a first axle 6, and the first wheel suspension element 5 is supported on the vehicle body 1 so as to rotate about a first wheel suspension rotation axis 7. 【0096】 The first wheel suspension element 5 extends as an element integrally formed between the first axles 6 and is supported on the vehicle body at the center point so as to rotate about the first wheel suspension rotation axis 7. 【0097】 A person skilled in the art is aware of such weight transfer steering in the prior art. The weight transfer steering 15 or similar steering shown in FIG. 1 is used, for example, in a skateboard or a kick scooter. Weight transfer steering is well known from patent documents. 【0098】 The second wheel 3 can be set to a second turning position 18 using a rotary steering 16 known in the prior art. The second turning position 18 is represented by a dashed line, and the second straight-ahead position 22 is represented by a dash-dotted line. 【0099】 The second wheel 3 is supported on a second wheel suspension element 8 so as to rotate about a second axle 9. The second wheel suspension element 8 extends as an element integrally formed between the second axles 9. The second wheel suspension element 8 is supported on the vehicle body 1 so as to rotate about a second wheel suspension rotation point 10. The wheel suspension rotation point 10 is the center point of the second wheel suspension element 8. 【0100】 Furthermore, a rotary handlebar 12 is connected to the second wheel suspension element 8 via a second connection system 13. The second connection system 13 is, for example, a part of the rotary handlebar 12, and this part engages with the second wheel suspension element 8 such that the setting of the second wheel 3 occurs by the operation of the rotary handlebar 12 and vice versa; a person skilled in the art can also provide another second connection system. The second connection system 13 forms a mechanical limit steering system 12 between the rotary handlebar 12 and the second wheel suspension element 8. 【0101】 The steering of the children's vehicle is characterized in that a weight transfer steering 15 and a rotary steering 16 are connected via a mechanical limit steering system 11, and this mechanical limit steering system 11 connects the movements of a first wheel suspension element 5 and a second wheel suspension element 8 as at least one element connecting the first wheel suspension element 5 and the second wheel suspension element 8. 【0102】 The setting of the first wheel 2 that can be set by the weight transfer steering 15 and the second wheel 3 that can be set by the rotary steering 16 in the same turning direction is achieved by the mechanical limit steering system 11. 【0103】 On the left side of FIG. 1, the mechanical limit steering system 11 is formed via a rod that is hinged to the first wheel suspension element 5 at one end and to the second wheel suspension element 8 at the other end. A person skilled in the art would be able to select the distance of the hinge points of the rod on the wheel suspension rotation axes 7, 14 so that the first wheel 2 and the second wheel 3 can be set to matching turning positions 17, 18. Furthermore, a person skilled in the art would be able to provide another mechanical limit steering system, for example, the shape of additional wheels or gears. 【0104】 In the left - hand embodiment, the wheels 2, 3 to be set are the front wheels of the children's vehicle, and the children's vehicle further comprises rear wheels 23 that are either not settable or are hinged to the vehicle chassis and are settable. 【0105】 In the right - hand embodiment, different from the left - hand embodiment, the settable wheels 2, 3 are the front wheel and the rear wheel respectively. The first wheel 2 that can be set via the weight transfer steering 15 is, for example, the front wheel, and the second settable wheel 3 that can be set via the rotary steering 16 is the rear wheel 23. It is also possible to arrange the above - mentioned steerings 15, 16 reversely on the vehicle chassis 1. 【0106】 In the left - hand embodiment, the mechanical - limit steering system 11 is hinged on the same side of the wheel suspension elements 5, 8, while in the right - hand embodiment, the rod forming the mechanical - limit steering system 11 extends obliquely and is thus hinged on different sides of the wheel suspension elements 5, 8. One skilled in the art can design the mechanical - limit steering system 11 such that the first wheel 2 and the second wheel 3 are always set to a single turning direction, and other embodiments of the mechanical - limit steering system are also possible. Thereby, it is achieved that the set wheels 2, 3 cause the vehicle to move in only one turning direction or only straight ahead. 【0107】 The embodiment of the children's vehicle shown in FIG. 1 can be characterized in that the second wheel - suspension rotation axis 14, which extends through the second wheel - suspension rotation point 10, extends vertically or extends at a second inclination with respect to the vertical plane. The disclosure in the figure description regarding FIGS. 2 and 3 should also apply mutatis mutandis in this case. 【0108】 The weight - shift steering 15 can comprise a force - application element 4. In the embodiment shown in FIG. 1, the chassis 1 functions as the force - application element 4. The chassis 1 may further comprise a tread and / or a holding bar and / or a seat element and / or a seat / holding element as in the prior art (not shown in FIG. 1). 【0109】 The embodiment of the children's vehicle shown in FIG. 1 can be characterized in that the rotary steering 16 comprises a single rotary handlebar 12 and optionally a controller, and the mechanical - limit steering system 11 connects the movement of the single rotary handlebar 12 with the movement of the wheel suspension elements 5, 8. 【0110】 Regarding FIG. 2: Figure 2 shows an embodiment conceivable for the children's vehicle of the present invention. Figure 2 includes, on the left side, a bottom view of the children's vehicle. Figure 2 includes, on the right side, a cross-sectional view of the embodiment shown on the left side of Figure 2. The left-side figure includes a cross-section line A-A. 【0111】 The children's vehicle includes a vehicle body 1 and two wheels 2 and 3 arranged one in front of the other. At least one front first wheel 2 is connected to the vehicle body 1 via a prior art weight transfer steering 15 and can be set to a first turning position 17 when the weight transfer steering 15 operates. In Figure 2, the first turning position 17 of the first wheel 2 is represented by a dashed line, and the first wheel 2 in the straight-ahead position 21 is depicted by a rectangle of a continuous line. 【0112】 The weight transfer steering 15 for setting the first wheel 2 includes a force application element 4. Through this force application element 4, a child riding on the children's vehicle can apply different force states to operate the weight transfer steering 15. The force application element may include a holding bar (not included in Figure 2) and / or a seat element 29 and / or a seat / holding element, and may further be formed by the vehicle body 1. A child sitting, standing, or being on the vehicle body 1 can operate the weight transfer steering 15 with different weight loads. The vehicle body 1 may include a tread (not shown in Figure 2) on which a child can take a standing or sitting posture. 【0113】 The weight transfer steering 15, which is known per se in the prior art, comprises a first wheel suspension element 4, on which a first wheel is supported so as to rotate about a first axle 6. The first wheel suspension element 5 is supported on the vehicle body 1 so as to rotate about a first wheel suspension rotation axis 7, and the first wheel suspension rotation axis 7 is inclined by a first inclination towards the vertical plane of the vehicle, and thus towards the vertical plane at the visual level of FIG. 2 on the left side. The first wheel suspension element 5 can be moved within a first plane of movement, which is oriented obliquely towards the visual level of FIG. 2 on the left side and at right angles to the first wheel suspension rotation axis 7. The inclined arrangement of the first wheel suspension rotation axis 7 creates an unstable position of the first wheel suspension element 5 with respect to the vehicle body 1 so that the first wheel suspension element 5 can be set when the state of the forces acting on the first wheel suspension element 5 from the vehicle body changes. 【0114】 The weight transfer steering 15 can comprise two first wheel suspension elements 5, which are preferably arranged symmetrically around the centre line 13 of the vehicle. Only half of the vehicle, and thus only one first wheel suspension element 5, is shown in FIG. 2. The weight transfer steering 15 further comprises a first tie rod 19, which connects the movements of both first wheel suspension elements 5. The first tie rod 19 functions as a mechanical limiting steering system between the two first wheel suspension elements 5. The rotational movement of one first wheel suspension element 5 about the first wheel suspension rotation axis 7 conditions the rotational movement of the other first wheel suspension element 5. 【0115】 Such weight transfer steering is known in the prior art. A person skilled in the art can replace the weight transfer steering 15 described herein with a weight transfer steering that acts in a similar manner. 【0116】 The vehicle further comprises a second wheel 3 at the rear, and the second wheel 3 can be set in a second turning direction 18 using a rotary steering 16. On the left side of FIG. 2, the second turning position 18 of the second wheel 3 is represented in a simplified manner using a dashed line, while the second wheel 3 is depicted in a straight-ahead position 22 with a continuous line. 【0117】 The second wheel 3 is supported on a second wheel suspension element 8 so as to rotate about a second axle 9, and the second wheel suspension element 8 is supported on the vehicle body 1 so as to rotate about a second wheel suspension rotation point 10. 【0118】 The rotary steering 16 can comprise two second wheel suspension elements 8, and the second wheel suspension elements 8 are connected with respect to a rotational movement about a second wheel suspension rotation point 10 by a second tie rod 20 which functions as a mechanical limit steering system. FIG. 2 shows only half of the vehicle and thus only one of the two second wheel suspension elements 8, and the second wheel suspension elements 8 are arranged symmetrically around the center line 13 of the vehicle. When one wheel suspension element 8 performs a rotational movement about the second wheel suspension rotation point 10, the movement of the other second wheel suspension element 8 is conditioned by the provision of the second tie rod 20. 【0119】 The rotary steering 16 shown in FIG. 2 further comprises a rotary handlebar 12 for actuating the rotary steering 16. In the embodiment shown in FIG. 2, the rotary handlebar 12 is shown inclined, and other inclinations of the rotary handlebar 12 are possible. The rotary handlebar 12 is connected to the second tie rod 20 via a second connection system 13. 【0120】 The rotary handlebar 12 is supported so as to rotate about its rotary rod axis. 【0121】 The second tie rod 20 also functions as a second mechanical limit steering system that couples the rotational movement of at least one second wheel suspension element 8 to the movement of the rotary handlebar 12. The rotational movement of at least one second wheel suspension element 8 conditions the movement of a second coupling element 13 for actuating a rotary steering 16 which, in the case of the embodiment shown in FIG. 2, is the rotation of the rotary handlebar 12. 【0122】 Such rotary steering is known in the prior art. A person skilled in the art is aware of other forms of rotary steering that can be used instead of the rotary steering included in FIG. 2. 【0123】 The vehicle according to the invention is characterized in that it combines the advantages of a weight transfer steering 15 and the advantages of a rotary steering 16. 【0124】 The weight transfer steering 15 and the rotary steering 16 are coupled via a mechanical limit steering system 11. In the embodiment shown in FIG. 2, by way of non-limiting example, the mechanical limit steering system 11 is achieved by means of rods hinged to the first wheel suspension element 5 and the second wheel suspension element 8. The rods function as a mechanical limit steering system that couples the steering embodiments 15, 16 and are referred to in the context of the present disclosure as the mechanical limit steering system 11. A person skilled in the art can provide other forms of the mechanical limit steering system 11 in addition to or instead of this rod. 【0125】 The mechanical limit steering system 11 has the technical effects described below. 【0126】 The first bending position 17 of the first wheel 2 conditions the second bending position 18 of the second wheel 3, and vice versa. The first bending position 17 and the second bending position 18 are aligned by the provided mechanical limit steering system 11 such that the bending positions 17, 18 of the respective wheels 2, 3 match the turning radii executed by the respective wheels. In the embodiment shown in FIG. 2, those skilled in the art can select the distance from the second wheel suspension pivot point 10 or from each of the first and second wheel suspension pivot axes 7, 14 to the hinge stop points of the mechanical limit steering system 11 included as rods, and select the length of the rods with respect to the distances from the second wheel suspension pivot point 10 or from each of the first and second wheel suspension pivot axes 7, 14 to achieve this alignment. In FIG. 2, the first wheel 2 is arranged in front of the second wheel 3 with respect to the traveling direction 31 of the vehicle. This can condition the first wheel 2 to describe a larger turning radius than the second wheel 3 having the second bending position 18. The bending positions 17, 18 of the wheels 2, 3 are defined by the mechanical limit steering system 11. 【0127】 Furthermore, the bending position of one wheel can be prevented by preventing the bending position of the other wheel. The operation of the weight transfer steering 15 conditions the second bending position 18 of the rotational steering 16, and vice versa. 【0128】 The mechanical limit steering system 11 has the further effect that the first bending position 17 and the second bending position 18 cause the steering of the vehicle into the same curve. 【0129】 As described above, the weight transfer steering in the prior art comprises a wheel suspension rotation axis 7 inclined towards the vertical plane. The children's vehicle can comprise a second wheel suspension rotation axis 14 extending through a second wheel suspension rotation point 10, which extends in the vertical direction or extends with a second inclination with respect to the vertical plane. A person skilled in the art selects the second inclination according to the mechanical limit steering system 11, or vice versa, and further selects the second inclination according to the desired driving characteristics of the vehicle. The first inclination of the first wheel suspension rotation axis 7 may be essentially equal to the second inclination, but the disclosure of the present invention is in no way limited to this particular shape of the vehicle. FIG. 2 shows a cross-sectional view having a second wheel suspension rotation axis 14 arranged vertically. Therefore, the rotary steering 16 is a pure rotary steering. 【0130】 The children's vehicle shown in FIG. 2 is characterized in that the rotary steering 16 comprises a rotary handlebar 12 and a handle as an optional controller, and the mechanical limit steering system 11 connects the movement of the rotary handlebar 12 and the movement of the wheel suspension elements 5, 8. In addition to the technical effect of the mechanical limit steering system 11 described above, it should be noted that, for example, a child who blocks the rotational movement of the rotary handlebar 12 by hand cannot condition the first bending position 17 of the first wheel 2 by the weight transfer steering 15 by shifting the body weight. The child can prevent the weight transfer steering 15 and thus the steering effect of the entire vehicle by locking the rotary steering 16 that can be performed by holding the rotary handlebar 12. 【0131】 The children's vehicle shown in FIG. 2 is characterized in that the first wheel 2 that can be set by the weight transfer steering 15 and the second wheel 3 that can be controlled by the rotary steering 16 are different wheels. 【0132】 The weight transfer steering included in FIG. 2 is Ackermann weight transfer steering according to general teachings. The rotary steering is Ackermann rotary steering. One skilled in the art can provide other forms of steering. 【0133】 Regarding FIG. 3: In addition to FIG. 2, FIG. 3 shows a further cross-sectional view by a further option of the arrangement of the wheel suspension rotation axes 7, 14. 【0134】 A first wheel suspension rotation axis 7 tilted forward or backward, and a vertical second wheel suspension rotation axis 14 (see FIG. 2). When the direction of the second wheel suspension rotation axis 14 is vertical, the second wheel suspension element 8 is set by simple rotary steering. 【0135】 A first wheel suspension rotation axis 7 tilted forward or backward, and a second wheel suspension rotation axis 14 tilted forward or backward. 【0136】 Regarding FIG. 4: FIG. 2 shows that the second wheel suspension element 8 is supported to rotate about the second wheel suspension rotation point 10. The possibility of supporting the second wheel suspension element 8 about the wheel suspension rotation point 10 has the advantage that the second wheel suspension element 8 can always be tilted towards the first wheel suspension rotation axis 7 depending on the position of the wheel suspension rotation axis 10. This has the technical effect that the first wheel 2 and the second wheel 3 are always in contact with the flat ground. The point hinge stop of the second wheel suspension element 8 on the vehicle body 1 may be established, for example, by a ball joint. 【0137】 On the other hand, as shown in FIG. 4, by supporting the second wheel suspension element 8 so as to rotate about the second wheel suspension rotation axis 14, the second rotational movement of the second wheel suspension element 8 is restricted to a second movement plane directed at right angles from the second wheel suspension rotation axis 14. This enables the use of wheels or gears, in addition to or instead of rods, as the mechanical limiting steering system 11. 【0138】 In FIGS. 2, 3, and 4, a direction of travel 31 is given as an example, which is directed from bottom to top. The indication of this direction of travel 31 should in no way be understood as a limitation. 【0139】 The weight transfer steering included in FIG. 4 is an Ackermann weight transfer steering according to general teachings. The rotational steering is an Ackermann rotational steering. A person skilled in the art can provide another form of steering. 【0140】 Regarding FIG. 5: 【0141】 FIG. 5 shows another possible embodiment of the children's vehicle according to the invention. FIG. 5 shows the right bottom view of the vehicle on the left and the related cross-sectional view on the right, with section A-A shown on the left of FIG. 4. 【0142】 The children's vehicle comprises a chassis 1 and at least two wheels 2, 3. 【0143】 The vehicle comprises a first wheel 2 which is connected to the chassis 1 via a weight transfer steering 15 and which can be set in a first turning direction 17 when the weight transfer steering 15 is actuated. The vehicle will be further described hereinafter with reference to FIGS. 9 to 13, and in this regard, it should be apparent that the chassis 1 and / or the rotating handlebar 12 and / or the seat element 29 and / or the seat / holding element have the function of the force application element, and thus the actuating element 4. 【0144】 The first wheel 2 is supported on a first wheel suspension element 5 so as to rotate about a first axle 6. The first wheel suspension element 5 is supported on the vehicle body 1 so as to rotate about a first wheel suspension rotation axis 7, and the first wheel suspension rotation axis 7 is inclined toward the vertical plane by a first inclination, whereby a first movement plane of the first wheel suspension element 5 is defined in the same manner as in the embodiment shown in FIG. 2. The first wheel suspension element 5 is in an unstable position due to the inclination of the first wheel suspension rotation axis 7, and this position can be changed by shifting the weight to the vehicle body 1 or by changing the force acting on the actuating element 4. 【0145】 The weight transfer steering 15 shown in FIG. 5 includes two first wheel suspension elements 5, and these first wheel suspension elements 5 are connected via a first tie rod 19 forming a first mechanical limit steering system. The rotational movement of the first wheel suspension element 5 about the first wheel suspension axis 7 conditions the rotational movement of a further first wheel suspension element 5, and the single rotation of the first wheel suspension element 5 is impossible due to the first tie rod 19 forming the first mechanical limit steering system. The first tie rod 19 is moved by the force when the first wheel suspension element 5 makes a rotational movement. 【0146】 A person skilled in the art is aware of such weight transfer steering in the prior art. This type of weight transfer steering is also called Ackermann weight transfer steering. 【0147】 The embodiment of the children's vehicle of the present invention shown in FIG. 5 includes a second wheel 3 that can be set in a second turning direction 18 using a rotary steering 16. The embodiment shown in FIG. 5 is characterized in that the first wheel 2 and the second wheel 3 are the same wheel. The first wheel 2 and the second wheel 3 are integrally formed. Therefore, the weight transfer steering 15 and the rotary steering 16 as the steering connected via the mechanical limit steering system 11 cause the same wheels 2 and 3 to be set to the same turning positions 17 and 18. 【0148】 The second wheel 3 is supported on a second wheel suspension element 8 so as to rotate about a second axle 9, and the second wheel suspension element 8 is supported on the vehicle body 1 so as to rotate about a second wheel suspension rotation axis 14 (including a second wheel suspension rotation point 10). The vehicle includes two second wheel suspension elements 8, and these second wheel suspension elements 8 are connected by a second tie rod 20 that forms a mechanical limit steering system. The rotary handlebar 12 is directly connected to the tie rods 19 and 20 and indirectly connected to the second wheel suspension element 8 via a second mechanical connection system 13. 【0149】 Since the first wheel 2 and the second wheel 3 are integrally formed, the wheel suspension elements 5 and 8 and the wheel suspension rotation axes 7 and 14 are integrally formed, which is not necessarily required but reasonable. 【0150】 The invention disclosed in this specification aims to enable a children's vehicle to be steered simultaneously by weight transfer steering and rotary steering. Generally, this is achieved by connecting the weight transfer steering 15 and the rotary steering 16 via a mechanical limit steering system 11. 【0151】 In the exemplary embodiment shown in FIG. 5, this is achieved by integrally forming the first tie rod 19 and the second tie rod 20 as one tie rod. The first wheel suspension element 5 and the second wheel suspension element 5 are also integrally formed and supported to rotate in a single plane. The tie rods 19, 20 and the wheel suspension elements 5, 8 form a mechanical limit steering system. The tie rods 19, 20 and the wheel suspension elements 5, 8 form a first mechanical limit steering system 11 of the weight transfer steering 15 and the rotational steering 16. 【0152】 The rotating handlebar 12 is connected to the tie rods 19, 20 via a cantilever element as the second connecting element 13. Further, the cantilever element forms a mechanical limit steering system 11 between the weight transfer steering 15 and the rotational steering 16. The cantilever element conditions the rotating handlebar 12 that rotates about the longitudinal axis when setting the wheel suspension elements 5, 8. The user can prevent or allow the setting of the wheels 2, 3 and thus the operation of the weight transfer steering 15 and the rotational steering 16 by holding the rotating handlebar 12. 【0153】 Accordingly, the mechanical limit steering system 11 is formed by the wheel suspension elements 5, 8, the tie rods 19, 20, and the cantilever element. The mechanical limit steering system 11 conditions the vehicle body 1 acting as the actuating element 4 and / or the holding rod 27 acting in the same way and / or the seat element 29 and / or the seat / holding element, and the rotating handlebar 12 to set the wheels 2, 3 to the turning positions 17, 18. 【0154】 The rotational movement 32 of the rotating handlebar 12 (see the curved arrow in FIG. 5) causes the rotational movement 32 of the cantilever element, which conditions the movement of the second tie rod 19 due to its connection to the tie rods 20, 20. 【0155】 Accordingly, FIG. 5 shows the steering for a children's vehicle, This children's vehicle comprises a chassis 1 and at least one wheel 2, 3 which can be set using the steering, The wheels 2, 3 are connected to the chassis 1 via a weight transfer steering 15 and can be set in the turning directions 17, 18 by actuating the weight transfer steering 15. 【0156】 The wheels 2, 3 are supported on wheel suspension elements 5, 8 so as to rotate about the first axles 6, 9. 【0157】 The wheel suspension elements 5, 8 are supported on the chassis 1 so as to rotate about the wheel suspension rotation axes 7, 14, and the wheel suspension rotation axes 7, 14 are inclined towards the vertical plane by the first inclination. The term "vertical plane" is defined above. 【0158】 Such a weight transfer steering is known in the prior art. 【0159】 The wheels 2, 3 can be set in the turning directions 17, 18 using a rotary steering 16, A rotary handlebar 12 is connected to the second wheel suspension element 8 via a second connecting system 13. As an example, the second connecting system 13 formed as a cantilever element is connected to the tie rods 19, 20 in the embodiment shown in FIG. 5, and the tie rods 19, 20 are hinged to the wheel suspension elements 5, 8. Those skilled in the art are aware of further related embodiments which are also described as part of the disclosure of the present invention. 【0160】 The weight transfer steering 15 and the rotary steering 16 are connected via a mechanical limiting steering system 11, which connects the movement of the wheel suspension element 5 caused by the weight transfer steering 15 and the movement of the wheel suspension element 8 caused by the rotary steering 16. The same turning direction of the wheels by the weight transfer steering 15 and the rotary steering 16 is achieved. In the embodiment shown in FIG. 5, the mechanical limiting steering system 11 is formed by tie rods 19, 20 and wheel suspension elements 5, 8. 【0161】 The mechanical limiting steering system 11 has the effect that it is necessary to enable the steering movement using the rotary steering 16 in order to set the wheels 2, 3 using the weight transfer steering 15, and vice versa. A person skilled in the art achieves this effect by connecting the movable elements of the weight transfer steering 15 and the rotary steering 16 using a mechanical limiting steering system. The embodiment shown in FIG. 5 shows one possible embodiment of a mechanical limiting steering system; a person skilled in the art is aware of further embodiments of mechanical limiting steering systems. In the embodiment shown in FIG. 5, the mechanical limiting steering system is formed, for example, by an integral formation of the movable elements of the weight transfer steering 15 and the rotary steering 16. The wheel suspension elements 5, 8 and the tie rods 19, 20 are integrally formed. 【0162】 The weight transfer steering 15 is based on the inclination of the first wheel suspension rotation axis 7. Accordingly, the first wheel suspension rotation axis 7 extends around the first inclination towards the vertical plane. In the embodiment shown in FIG. 5, since the first wheel suspension element 5 and the second wheel suspension element 8 are integrally formed, the wheel suspension rotation axes 7, 14 are also integrally formed. The second wheel suspension rotation axis 14 has a second inclination equal to the first inclination. 【0163】 The rotary steering 16 comprises a rotary handlebar 12 and optionally a controller and / or an actuating element 4, and a mechanical limiting steering system 11 connects the movement of the rotary handlebar 12 with the movement of the wheel suspension elements 5, 8. Thus, a child sitting in the children's vehicle and preventing the rotary movement of the rotary handlebar 12 prevents any steering 15, 16 of the vehicle. 【0164】 The embodiment shown in FIG. 5 differs from the embodiments shown in FIG. 1 or FIG. 2 in that the first wheel 2 and the second wheel 3 are integrally formed as one wheel. This also enables the integral formation of the first and second wheel suspension elements 5, 8, the tie rods 19, 20, and the wheel suspension rotation axes 7, 14. 【0165】 This enables the mechanical limiting steering system 11 to be formed, inter alia, by the integrally formed wheel suspension elements 5, 8 and the integrally formed tie rods 19, 20. 【0166】 A preferred direction of travel 31 is given in FIG. 5, and other directions of travel are also possible. 【0167】 The weight transfer steering included in FIG. 4 is an Ackermann weight transfer steering according to general teachings. The rotary steering is an Ackermann rotary steering. A person skilled in the art can provide other forms of steering. 【0168】 Regarding FIG. 6: FIG. 6 shows another embodiment of the children's vehicle according to the invention; FIG. 6 includes a bottom view on the upper left side, a front view on the lower left side, and a sectional view on the right side. 【0169】 The children's vehicle comprises a vehicle body 1 and at least two wheels 2, 3, and the two wheels 2, 3 are integrally formed in the same manner as the embodiment shown in FIG. 5. 【0170】 At least one wheel 2 is connected to the vehicle body 1 and can be set in a first turning direction 17 by actuating a weight transfer steering 15. The weight transfer steering 15 comprises an actuating element 4 and can be actuated by this actuating element 4. In the embodiment shown in FIG. 6, the vehicle body 1 comprising a tread (not visible in FIG. 6) and / or a handle 28 and / or a seat element 29 and / or a seat / holding element functions as an actuating element 4 for actuating the weight transfer steering. 【0171】 At least one wheel 2 is respectively supported on one first wheel suspension element 5 so as to rotate about a first axle 6, and the first wheel suspension element 5 is supported on the vehicle body 1 so as to rotate about a first wheel suspension rotation axis 7. The first wheel suspension rotation axis 7 is inclined towards the vertical plane by a first inclination. In the prior art, when the first wheel 2 is in a straight-ahead position, an unstable balance situation occurs due to the inclination of the wheel suspension axis 7, and a user getting into the vehicle can leave this unstable balance situation and cause a steering position of the first wheel by shifting his own body weight. A person skilled in the art is aware of such a weight transfer steering in the prior art operating according to this principle or a similar principle. As is known in the prior art, the weight transfer steering may comprise a spring that is biased when the first wheel is in a steering position. The biasing spring can assist a person skilled in the art in moving the first wheel 2 from a first turning position 17 to a first straight-ahead position. 【0172】 The second wheel 3, which is formed integrally with the first wheel 2, can be set to a second turning position 18 using the rotary steering 16. The second wheel 3 is supported on the second wheel suspension element 8 so as to rotate about the second axle 9, and the second wheel suspension element 8 is supported on the vehicle body 1 so as to rotate about the second wheel suspension rotation point 10. Since the first wheel 2 and the second wheel 3 are integrally formed, in a useful manner, the first wheel suspension element 5, the second wheel suspension element 8, and the associated wheel suspension rotation axes 7, 14 are also integrally formed. The rotary handlebar 12 is connected to the second wheel suspension element 8 via the second mechanical connection system 13, which is achieved here by rigidly hinging the rotary handlebar 12 to the wheel suspension elements 5, 8. 【0173】 The children's vehicle of the present invention is characterized by the connection between the weight transfer steering 15 and the rotary steering 16. According to the present invention, this is achieved by the formation of the mechanical limiting steering system 11. 【0174】 In the embodiment shown in FIG. 6, the connection between the weight transfer steering 15 and the rotary steering 16 via the mechanical limiting steering system 11 is achieved by the wheel suspension elements 5, 8 being integrally formed and rotatably supported on a single wheel suspension rotation axis 7, 14. The integrated wheel suspension elements 5, 8 extend integrally between the axles 6, 9 of the two front wheels. The wheel suspension elements 5, 8 are hinged to the vehicle body 1 in the region of the integrated wheel suspension rotation axes 7, 14 by the weight transfer steering 15 known in the prior art. Thus, the integrally formed wheel suspension elements 5, 8 function as the mechanical limiting steering system 11. 【0175】 The vehicle body 1 having a tread (not visible in FIG. 6) functions as a force application element. 【0176】 In the area of the axles 6, 9, the rotary handlebar 12 is connected to the integral wheel suspension elements 5, 8, and the rotary handlebar 12 is provided with a handle 28 at the upper end. 【0177】 The rotary handlebar 12 also functions as a force application element 4 for actuating the holding rod 27 and the weight transfer steering 15. 【0178】 The rotary handlebar 12 can actuate the rotary steering 16. 【0179】 The rotary handlebar 12, the handle 28, and the wheel suspension elements 5, 8 supported on the wheel suspension rotation axes 7, 14 as rigid rotatable elements form a mechanical limit steering system 11. 【0180】 A spring may be arranged between the wheel suspension elements 5, 8 and the vehicle chassis 1. This spring undergoes a change in biasing when the wheel suspension elements 5, 8 are set about the wheel suspension rotation axes 7, 14. Such springs are known in the prior art in relation to weight transfer steering. For clarity, the spring is not included in FIG. 6. 【0181】 Thus, FIG. 6 shows the steering for a children's vehicle, which comprises a vehicle chassis 1 and two configurable wheels. One of the wheels 2, 3 is included in FIG. 6, and the other configurable wheel is not included in FIG. 6. The wheels 2, 3 are supported at one end of the wheel suspension elements 5, 8 so as to rotate about the axles 6, 9. Further wheels are supported at the other end of the wheel suspension elements 5, 8 so as to rotate about an axle (not included in FIG. 6). The hinge points of the wheel suspension elements 5, 8 on the vehicle chassis 1 are the midpoints of the wheel suspension elements 5, 8. The wheel suspension elements 5, 8 extend as elements supported so as to rotate about the wheel suspension rotation axes 7, 14. 【0182】 The wheels 2, 3 are connected to the vehicle body 1 via a weight transfer steering 15 and can be set to turning positions 17, 18 by actuating the weight transfer steering 15. The wheel suspension elements 5, 8 are supported on the vehicle body 1 so as to rotate about wheel suspension rotation axes 7, 14, and the wheel suspension rotation axes 7, 14 are inclined toward the vertical plane by a first inclination. 【0183】 The wheels 2, 3 can be set to turning directions 17, 18 using a rotary steering 16, and a rotary handlebar 12 is connected to the second wheel suspension elements 5, 8 via a second connection system 13. The connection system 13 is formed such that the rotary handlebar 12 is connected to the wheel suspension elements 5, 8 so as to transmit force in an appropriate manner. The rotary handlebar 12 preferably extends in a U-shape or a V-shape from a connection portion at one end of the wheel suspension elements 5, 8 to the other end of the wheel suspension elements 5, 8. A part of the rotary handlebar 12 forms a handle 28. 【0184】 The weight transfer steering 15 and the rotary steering 16 are connected via a mechanical limit steering system 11, and this mechanical limit steering system 11 connects the movement of the wheel suspension elements 5, 8 caused by the actuation of the weight transfer steering 15 and the movement of the wheel suspension elements 5, 8 caused by the actuation of the rotary steering 16, and vice versa. 【0185】 Regarding FIG. 7: In the embodiment shown in FIG. 7, in the same manner as the embodiment shown in FIG. 6, the wheel suspension elements 5, 8, and thus the wheel suspension rotation axes 7, 14, are integrally formed. The wheel suspension elements 5, 8 integrally extend between the axles 6, 9 and are supported on the vehicle body 1 so as to rotate via the wheel suspension rotation axes 7, 14. This structure of the weight transfer steering 15 and the rotary steering 16 corresponds to the embodiment according to FIG. 6. 【0186】 In the embodiment shown in FIG. 7, the connection between the weight transfer steering 15 and the rotary steering 16 is achieved by forming the wheel suspension elements 5, 8 as one integral element extending between the axles 6, 9. 【0187】 The rotary handlebar 12 that can be used to operate the rotary steering 16 and the holding rod 27 used as the actuating element 4 that can operate the weight transfer steering 15 are connected to the wheel suspension elements 5, 8 as the rotary steering and the holding rods 12, 27, and extend through the vehicle body 1 parallel to the wheel suspension rotation axes 7, 14. The rotary steering and the holding rods 12, 27 can have a handle 28 at the end facing away from the wheel suspension elements 5, 8, and a person can grasp this handle 28. 【0188】 In the prior art, those skilled in the art select how sensitive the weight transfer steering 15 reacts to a change in the force state via the inclination of the first wheel suspension rotation axis 7. In the embodiment shown in FIG. 7, those skilled in the art may further select the inclination of the first wheel suspension rotation axis 7 (the rotary steering and the holding rods 12, 27 extend parallel to the first wheel suspension rotation axis 7) so that the user can easily grasp the handle 28. Therefore, in the embodiment shown in FIG. 7, the inclination of the first wheel suspension rotation axis 7 is smaller than, for example, the embodiment shown in FIG. 6. 【0189】 The embodiment shown in FIG. 7 may have a curved or bent holding rod 4 and a rotary handlebar 12. Further, this embodiment may have an inclined rotary steering and holding rods 12, 27, and the inclined rotary steering and holding rods 12, 27 are connected to another vertical rotary steering and holding rods. 【0190】 As such, FIG. 7 shows a steering for a children's vehicle, the children's vehicle comprising a chassis 1 and two configurable wheels, one of the wheels 2, 3 being included in FIG. 7 and the other configurable wheel not being included in FIG. 7. The wheels 2, 3 are supported at one end of wheel suspension elements 5, 8 so as to rotate about axles 6, 9. Further wheels are supported at the other end of wheel suspension elements 5, 8 so as to rotate about an axle (not included in FIG. 7). The hinge points of the wheel suspension elements 5, 8 on the chassis 1 are the midpoints of the wheel suspension elements 5, 8. The wheel suspension elements 5, 8 extend as elements supported so as to rotate about wheel suspension rotation axes 7, 14. 【0191】 The wheels 2, 3 are connected to the chassis 1 via a weight transfer steering 15 and can be set in turning directions 17, 18 by actuating the weight transfer steering 15. The wheel suspension elements 5, 8 are supported on the chassis 1 so as to rotate about wheel suspension rotation axes 7, 14, and the wheel suspension rotation axes 7, 14 are inclined towards the vertical plane by a first inclination. 【0192】 The wheels 2, 3 can be set in turning directions 17, 18 using a rotational steering 16, and a rotational handlebar 12 is connected to the second wheel suspension elements 5, 8 via a second connection system 13. The connection system 13 is formed such that the rotational handlebar 12 is connected to the wheel suspension elements 5, 8. The rotational handlebar 12 optionally comprises a controller as a handle 28. 【0193】 The weight transfer steering 15 and the rotary steering 16 are connected via a mechanical limiting steering system 11, which connects the movement of the wheel suspension elements 5, 8 caused by the operation of the weight transfer steering 15 and the movement of the wheel suspension elements 5, 8 caused by the operation of the rotary steering 16, and vice versa. The forced steering system 11 is generated by the integral formation of the movable elements of the weight transfer steering 15 and the rotary steering 16. 【0194】 The children's vehicle shown in FIGS. 6 and 7 is characterized in that a second wheel suspension rotation axis 14 extending through a second wheel suspension rotation point 10 extends with a second inclination toward a vertical plane. Since the first wheel suspension element 5 and the second wheel suspension element 8 are integrally formed, the first inclination is equal to the second inclination. The first wheel suspension rotation axis 7 is equal to the second wheel suspension rotation axis 14. 【0195】 The vehicle shown in FIGS. 6 and 7 is characterized in that the first wheel 2 and the second wheel 3 are integrally formed. The mechanical limiting steering system 11 is formed by the wheel suspension elements 5, 8 due to the integral formation of the wheel suspension elements 5, 8. 【0196】 A spring may be arranged between the wheel suspension elements 5, 8 and the vehicle body 1, and this spring suffers a change in biasing when the wheel suspension elements 5, 8 are set about the wheel suspension rotation axes 7, 14. Such springs are known in the prior art in relation to weight transfer steering. The spring is not included in FIG. 6 for clarity. 【0197】 Regarding FIG. 8: FIG. 8 shows an embodiment similar to the embodiment shown in FIG. 5. The embodiment of FIG. 8 differs from the embodiment of FIG. 5 by the shape of the rotary handlebar 12. 【0198】 The rotary handlebar 12 is arranged to extend obliquely in the region above the axles 6, 9. Below the axles 6, 9, the rotary handlebar 12 is arcuately guided to the tie rods 19, 20. The rotary handlebar 12 is supported so as to rotate about a longitudinal axis extending in the region above the axles 6, 9. Different from the steering of a known Bobbycar, the wheel suspension elements 5, 8 in the embodiment shown in FIG. 8 forming the knuckles are tilted by a first inclination to achieve weight transfer steering. 【0199】 Regarding FIG. 9: FIGS. 9a and 9b show an embodiment of a children's vehicle, which comprises a weight transfer steering 15 and a rotary steering 16 connected by a mechanical limit steering system 11. Through these steerings (connected as described in the description of the above figures by way of example and not limitation), the wheels 2, 3 can be set. The wheels integrally formed as the first wheel 2 and the second wheel 3 are the front wheels of the vehicle. 【0200】 The wheels 2, 3 are connected to the vehicle chassis 1 via the weight transfer steering 15 and the rotary steering 16. The vehicle comprises two front wheels 2, 3 and one rear wheel 23. The vehicle further comprises a brake 24 acting on the rear wheel 23, and a brake element 25 is pressed against the running surface of the rear wheel 23. Even if the brake 24 is actuated, the force state in the region of the front wheels 2, 3 does not change, and thus no steering effect is achieved even if the brake 24 is actuated. 【0201】 The vehicle further comprises a tread 26 integral with the chassis 1, a holding rod 27 having a gripping means 28, and a seat element 29 detachably or non-detachably attached to the holding rod 27. 【0202】 The vehicle can comprise a rotary handlebar 12 (see FIG. 9a) or a holding rod 27 (see FIG. 9b). 【0203】 The rotary handlebar 12 rotates about its longitudinal axis and actuates the rotary steering 16. The rotary handlebar 12 is connected to the rotary steering 16. The rotary handlebar 12 is rotatably supported on the vehicle body 1, for example, at its lower end. 【0204】 On the other hand, the holding rod 12 is firmly supported on the vehicle body at its lower end. The holding rod 27 does not enable the operation of the rotary steering. Therefore, the operation of the rotary steering 16 must be achieved via other elements such as, for example, the rotary rod element 42. 【0205】 The movable or firm support of the rotary handlebar 12 or the holding rod 27 has a technical effect mainly on the elements respectively connected to the rotary handlebar 12 or the holding rod 27, particularly on the seat element 29. Various effects of supporting each of the rotary handlebar 12 or the holding rod 27 on the vehicle body 1 will be described, for example, based on FIGS. 12 to 14. 【0206】 The tread 26, the rotary handlebar 12 or the holding rod 27 optionally including the handle 28, and / or the vehicle body 1 including the seat element 29 can function as a force application element 4 for actuating the weight transfer steering 15. 【0207】 The rotary handlebar 12 and / or the handle 28 and / or the seat element 29 can function as elements for actuating the rotary steering 16. The rotation of the handle 28 and / or the seat element 29 can cause the rotational movement of the rotary handlebar 12 according to the mechanical connection of these elements. When the rotary handlebar 12 rotates, the handle 28 and / or the seat element 29 optionally rotate together with the rotary handlebar 12. Hereinafter, how to establish this mechanical connection of these elements will be described based on exemplary embodiments. 【0208】 Regarding FIGS. 10 and 11: Figures 10 and 11 show a further embodiment of the vehicle of the present invention. This embodiment is distinguished in particular by the connection of the seat element 29 to the rotating handlebar 12 or the holding rod 27. Figures 10 and 11 show side views of the embodiment. 【0209】 The vehicle comprises a chassis 1. Front wheels 2, 3 forming a first wheel 2 and a second wheel 3 are connected to the chassis 1 via a weight transfer steering 15 and a rotary steering 16, and the steerings 15, 16 are connected via a mechanical limit steering system 11. The steerings 15, 16 including the mechanical limit steering system 11 can be formed, for example, as described in the descriptions of the figures above and below. 【0210】 Furthermore, a rear wheel 23 is rotatably connected to the chassis 1. 【0211】 The chassis 1 comprises a tread 26. 【0212】 The seat element 29 is connected to a rotating handlebar 12 (see Fig. 10a) or a holding rod 27 (see Fig. 10b). The seat element 29 can be converted, for example by pivoting, from its position as a seat to its position as a holding element, as is known in the prior art. 【0213】 The chassis 1 including the tread 26, the rotating handlebar 12 or the holding rod 27, and / or the seat element 29, and / or the handle 28 can function as a force application element 4 for actuating the weight transfer steering 15. 【0214】 The rotating handlebar 12 and / or the handle 28 and / or the seat element 29 can function as an element for actuating the rotary steering 16 depending on the mechanical connection described below. 【0215】 Vehicles that rely on weight transfer and are known in the prior art have the drawback that the point of application of the force of the user's own body weight is located outside the tilt axis of the vehicle, increasing the risk of the vehicle tipping over. This is particularly unacceptable for children's vehicles with three wheels. According to general teachings for testing vehicles with respect to tipping, several norms are known. 【0216】 Regarding Figure 12: Figure 12 shows, in top and bottom views, an embodiment of the vehicle of the present invention shown in Figures 10a and 10b while in straight motion. 【0217】 Regarding Figure 13: Figure 13 shows, in top and bottom views, a special form of the embodiment shown in Figures 10 - 12 while the vehicle is traveling on a curve. 【0218】 Figure 13 shows an embodiment in which the seat element 29 acts as an element for actuating the rotary steering, which is the reason why the seat element 20 in Figure 13, which shows the vehicle traveling on a curve, has a rotational position. The seat means 29 is mechanically connected to the rotary handlebar 12. The embodiment shown in Figure 13 provides a solution to the problem detailed above with respect to the point of application of the user's force. This corresponds to the embodiment according to Figure 10a. 【0219】 In accordance with the function of the weight transfer steering, the tilt axis of the vehicle extends through the support points of the rear wheels 23 and through the support points of the wheels 2, 3. Figures 12, 13, and 14 include only one tilt axis 30. 【0220】 The tilt axis 30 related to a right curve is included in Figure 13. In the embodiment shown in Figure 13, the connection between the weight transfer steering 15 and the rotary steering 16 conditions the rotation of the seat element 29 about the axis of the rotary handlebar 12, and thus the movement of the seat element 29 away from the tilt axis 30. Accordingly, the seat element 29 is arranged within the range of the tilt axis of the vehicle in projection when steering the vehicle. The handle 28 connected to the seat element 29 rotates with the seat element 29. 【0221】 In the scooter shown in FIG. 13, the connection between the weight transfer steering 15 and the rotary steering 16 has the effect that the seat element 29 connected to the rotary handlebar 12 is moved away from the tilt axis, thereby substantially improving the tipping problem known in prior art scooters, particularly in kick scooters having three wheels and weight transfer steering. 【0222】 Regarding FIG. 14: Still, especially for young children, it can be difficult to learn to move the hips, and thus the seat element 29, outwards to negotiate a curve. FIG. 14 provides a solution to this. 【0223】 FIG. 14 shows another special form of the embodiment shown in FIGS. 10b and 11b when negotiating a curve, in top view and bottom view. FIG. 14 shows an embodiment in which the seat element does not act as an element for actuating the rotary steering, which is why the seat element 29 is shown in the same position as the straight-ahead position in FIG. 14 showing the negotiation of a curve. Unlike the embodiment shown in FIG. 13, in the embodiment shown in FIG. 14, the seat element 29 is not moved when the steering movement of the vehicle is executed. The rotary steering 16 is actuated by the handle 28. 【0224】 FIGS. 13 and 14 show different embodiments by the illustrated steering mechanisms in addition to the forced movement of the seat element 29. The steering mechanisms of these embodiments will be described below, but various mechanical connection systems are interchangeable between the embodiments. 【0225】 Regarding FIG. 15: FIG. 15 can be regarded as an exploded view of the steering parts of the embodiment of FIG. 14, in which embodiment the seat element 29 is firmly connected to the retaining rod 27. 【0226】 The front wheels 2, 3, 2', 3' not included in FIG. 15 can be set in a convenient manner by a weight transfer steering 15 and a rotary steering 16 connected by a force, as described below. The mode of operation of each one or more steerings will be described mainly with respect to the setting of the wheels 2, 3 on the right side, but this description may be similarly applied to the wheels 2', 3' on the left side as well, unless otherwise specified. 【0227】 The first wheel 2 is connected to the vehicle body 1 via the weight transfer steering 15. The first wheel 2 can be set in a first turning direction 17 when the weight transfer steering 15 is actuated. The weight transfer steering 15 shown in FIG. 15 is an Ackermann steering by weight transfer (often simply called "steering by lean"). The first wheel 2 is supported on a first wheel suspension element 5 so as to rotate about a first axle 6. The wheel suspension element 5 has an L-shaped configuration and is formed as a knuckle according to general teachings. 【0228】 The first wheel suspension element 5 is supported on the vehicle body 1 so as to rotate about a first wheel suspension rotation axis 7, and the first wheel suspension rotation axis 7 is inclined forward or backward (when viewed in the traveling direction) toward the vertical plane by a first inclination. 【0229】 The first wheel suspension element 5 extends inclined with respect to the horizontal plane. The first wheel suspension element 5 is rotatably supported within a plane arranged by a first inclination toward the ground. 【0230】 The first wheel suspension element 5 of the right front wheel 2 is connected via a first tie rod 19 to the first wheel suspension element 5' of the left front wheel 2'. The first wheel suspension elements 5' on the left side and 5 on the right side are symmetrically arranged about the longitudinal axis of the vehicle when the wheels 2, 3 are in the straight-ahead position, as is known according to the general teachings regarding this type of weight transfer steering. The first tie rod 19 moves the right first wheel 2 and the left first wheel 2' in the same set direction during the operation of the weight transfer steering 15. The turning positions 17, 17' of the first wheels 2, 2' do not necessarily have to be parallel to each other. The front wheel 2' on the inside of the curve may have a different position from the front wheel 2 on the outside of the curve. 【0231】 The inclination positions of the first wheel suspension elements 5, 5' and their rotations about the wheel suspension rotation axes 7, 7' inclined forward or backward in a plane inclined forward or backward with respect to the vertical plane make the weight transfer steering in the straight-ahead position an unstable position. 【0232】 A person skilled in the art is familiar with weight transfer steering in the prior art and no explicit description of the structural features is required herein. A person skilled in the art can provide a weight transfer steering different from the Ackermann weight transfer steering mentioned as an example herein. 【0233】 Referring to the above definitions, the right front wheel can also be regarded as the second wheels 3, 3', and the wheels 3, 3' can be controlled via a rotary steering according to the above definitions. The first wheels 2, 2' and the second wheels 3, 3' are integrally formed. The rotary steering will be mainly described based on an example of the setting of the right front wheel 3. 【0234】 The second wheel 3 can be set to a second turning direction 18 using a rotary steering 16. The second wheel is supported on a second wheel suspension element 8 so as to rotate about a second axle 9, and the second wheel suspension element 8 is supported on a vehicle body 11 so as to rotate about a second wheel suspension rotation point 10. To set the front wheel as the second wheel 3, a rotary handlebar 12 is connected to the second wheel suspension element 8 via a second connection system 13. The rotary handlebar 12 may extend essentially vertically, as in the case of a scooter or a kick scooter, for example. 【0235】 The rotary steering includes a right second wheel suspension element 8 for the right front wheel 3 and a left second wheel suspension element 8' for the left front wheel 3'. The second wheel suspension elements 8, 8' are connected to each other via a second tie rod 20. The rotational movement of the right second wheel suspension element 8 conditions the movement of the right wheel suspension element 8', and vice versa. 【0236】 A second connection system 13 that couples or transfers the rotational movement 32 of the rotary handlebar 12 (not included in FIG. 14) to the movement of the second tie rod 20 and the rotational movement of the second wheel suspension elements 8, 8' includes a cam lever 33 connected to the lower end of the rotary handlebar 12 and a tie rod lever 34 connected to the second tie rod. The cam lever 33 and the tie rod lever 34 are connected via a pin 35 guided in an elongated hole. In this way, the rotational movement of the rotary handlebar 12 causes the setting of the front wheels 2, 3, 2', 3'. Preferably, the pin 35 and the tie rod lever 34 are integrally formed. 【0237】 The embodiment shown in FIG. 15 features a space-saving arrangement of the required elements. The tie rods 20 and the tie rod lever 34 are arranged behind the wheel suspension rotation axis 10 when viewed in the traveling direction 31. This is achieved by the pin 35 that connects the tie rod lever 34 and the cam lever 33 being arranged behind the rotation axis of the rotary handlebar 12 when viewed in the traveling direction 31. 【0238】 The pin 35 may be formed as a screw. 【0239】 To enable the vehicle of the present invention to be steered solely by the weight transfer steering 15, the pin 35 can be removed. This interrupts the connection between the rotary handlebar 12 (not included in FIG. 14) and the weight transfer steering 15. In a convenient manner, the rotary handlebar 12 is designed to be fixable to the vehicle frame so that it is no longer rotatably supported and the modified vehicle can be steered like a kickboard. Although not limited to this, in a particularly preferred embodiment, the pin 35 after being removed from the cam lever 33 and the tie rod lever 34 may be used to fix the rotary handlebar 12. 【0240】 In a manner equivalent to the removal of the pin 35, the connection between the rotary handlebar 12 and the cam lever 33 may be interrupted, for example, by releasing the hinge stop or removing the cam lever 33. 【0241】 In a manner equivalent to the removal of the pin 35, the connection between the tie rods 19, 20 and the tie rod lever 34 may be interrupted by releasing the hinge stop of the tie rod lever 34 to the tie rods 19, 20 or removing the tie rod lever 34. 【0242】 By firmly connecting pin 35 to the tie rods 19, 20, and / or by firmly connecting the cam lever 33 to the tie rods 19, 20, the steerings 15, 16 can also be locked. Therefore, a vehicle convenient for beginners can be produced because it moves straight only in the locked steering state. 【0243】 The upper end of the rotary handlebar 12 can generally be provided with handle means in any form that enables the rotary handlebar 12 to be rotated. As shown in FIG. 15 by way of example and not limitation, the rotary handlebar 12 can be provided at its upper end with a controller such as a horizontal controller optionally having a handle, as is apparent for use in the rotary steering of a bicycle or a scooter. The horizontal controller may have a shape different from that of the horizontal controller of a scooter, such as an annular shape. 【0244】 The weight transfer steering 15 and the rotary steering 16 are connected via a mechanical limit steering system 11, and the mechanical limit steering system 11 connects the movement of the first wheel suspension element 5 and the second wheel suspension element 8 as at least one element connecting the first wheel suspension element 5 and the second wheel suspension element 8 so that the setting of the front wheel as the first wheel 2 that can be set by the weight transfer steering 15 and the setting of the front wheel as the second wheel 3 that can be set by the rotary steering 16 in the same turning direction are achieved. 【0245】 In the embodiment shown in FIG. 15, the mechanical limit steering system 11 is formed such that the elements of the weight transfer steering 15 and the rotary steering 16 are integrally formed. Some integrally formed elements will be described below, but those skilled in the art can also make selections from these elements. The invention disclosed in this specification is not limited to the integral formation of the elements described below. 【0246】 Although not limited to this, in a convenient way, the right wheel suspension elements 5, 8 and the left wheel suspension elements 5', 8' are integrally formed such that the wheel suspension elements 5, 5', 8, 8' function as a mechanical limit steering system 11. 【0247】 Although not limited to this, in a convenient way, the right wheel suspension rotation axes 7, 14 and the left wheel suspension rotation axes 7', 14' are integrally formed such that the wheel suspension rotation axes 7, 7', 14, 14' can be regarded as a mechanical limit steering system. 【0248】 Although not limited to this, in a convenient way, the first tie rod 19 and the second tie rod 20 are integrally formed such that the tie rods 19, 20 can be regarded as a mechanical limit steering system. 【0249】 The first wheels 2, 2' and the second wheels 3, 3' are integrally formed such that the wheels 2, 2', 3, 3' can be regarded as a mechanical limit steering system. 【0250】 In the embodiment shown in FIG. 15, the mechanical limit steering system 11 is realized as integrally formed wheel suspension elements 5, 8. For clarity, the reference system 11 is further provided only for the wheel suspension elements 5, 5', 8, 8'. 【0251】 A person skilled in the art can change or make changeable the distance 36 between the wheel suspension axes 7, 14 and the hinge points of the tie rods 19, 20 with respect to the wheel suspension elements 5, 8 in the embodiment shown in FIG. 14. Thereby, the steering movement ratio between the rotary steering 16 and the weight transfer steering 15 can be set. 【0252】 In an equivalent manner, for example, the distance indicated by the cam lever 33 between the pin 35 and the axis of rotation of the rotary handlebar 12 (not included in FIG. 14) can be changed. 【0253】 Steering systems shown in FIG. 15, such as the rotary steering 16 and the weight transfer steering 15, comprise a plurality of mechanical levers. A person skilled in the art can change the effective length of at least one lever in order to change the said ratio. 【0254】 In summary, the vehicle embodiments shown in FIGS. 9 to 14 comprise a chassis 1 and at least two wheels 2, 3, the wheels 2, 3 are connected to the chassis 1 via a weight transfer steering 15 and can be set in turning directions 17, 18 by actuating the weight transfer steering 15, each of the wheels 2, 3 is supported on wheel suspension elements 5, 8 so as to rotate about first axles 6, 9, the wheel suspension elements 5, 8 are supported on the chassis 1 so as to rotate about wheel suspension axes of rotation 7, 14, the wheel suspension axes of rotation 7, 14 are inclined towards the vertical plane by a first inclination, the wheel suspension elements 5, 8 are connected by tie rods 19, 20, the wheels 2, 3 can be set in turning directions 17, 18 using the rotary steering 16, a rotary handlebar 12 is connected to the wheel suspension elements 5, 8 via a second coupling system 13, the weight transfer steering 15 and the rotary steering 16 are connected via a mechanical limiting steering system 11 formed integrally with the wheel suspension elements 5, 8 and / or the tie rods 19, 20, the mechanical limiting steering system 11 is such that the setting of the first wheel 2 achievable with the weight transfer steering 15 and the setting of the second wheel 3 achievable with the rotary steering 16 in the same turning direction are achieved. As an element that connects at least the first wheel suspension element 5 and the second wheel suspension element 8, it couples the movements of the first wheel suspension element 5 and the second wheel suspension element 8. 【0255】 In a preferred embodiment, instead of the axles of the rear wheels 23 (not included in FIG. 15), the axles 6, 6', 9, 9' of the front wheels 2, 2', 3, 3' intersect at a bending position at an instantaneous pole (not shown). 【0256】 Regarding FIG. 16: The embodiment of the vehicle of the present invention shown in FIG. 9 can include a removable seat element 29. FIG. 16 shows the configuration of the vehicle of the present invention brought about thereby. The formation of the removable seat element 29 is particularly advantageous for the embodiment shown in FIG. 14 having a non-rotatable seat element 29. 【0257】 FIGS. 17 to 23 show embodiments conceivable for the seat / holding element. 【0258】 For example, as shown in FIG. 10, the seat / holding element can be used as the seat element 29. For example, as shown in FIG. 11, the seat / holding element can be used as the holding rod 27. Providing a seat / holding element that can be converted from the position as the seat element 29 to the position as the holding rod 27 (and vice versa) is known, for example, from European Patent No. 3240723. European Patent No. 3240723 explains, by way of example and not limitation, that the seat / holding element can be pivotally converted from the position as the seat element 29 to the position as the holding rod 27 (which may also be called a holding element) (and vice versa). 【0259】 The possible embodiments of the seat / retaining element described below may be regarded as inventions essentially based on the inventive embodiments of European Patent No. 3240723 shown in Figures 3 to 6 of European Patent No. 3240723. Based on European Patent No. 3240723, a person skilled in the art faces the specific task of extending the function of the handle (see Figures 10 and 11), and optionally also the function of the seat element 29 or the retaining rod 27, by means of a rotary steering function. Figures 17 to 23 show a plurality of proposed solutions. 【0260】 Regarding Figure 17: Figure 17 shows a cross-sectional view of a possible embodiment of a seat / retaining element that does not affect the rotary steering 16 by rotation. 【0261】 The following is an explanation of Figures 17 to 23. 【0262】 As shown in Figure 10b, the seat element 29 is connected to the retaining rod 27. As shown in Figure 11b, the seat element is connected to the retaining rod 27 as a retaining element. The above-mentioned connection may also be via the hinge 27. 【0263】 Instead of the hinge 37, it is considered that a connector or the like is also possible. For the sake of simplicity, the following explanation is not within the scope of protection but is limited to the hinge 37 and should apply to all of Figures 17 to 23. 【0264】 The retaining rod 27 is formed as an element having a hollow cross-section. This is due to the support of the rotary handlebar element 42 described later. The retaining rod 27 is further supported in a non-rotating manner on the vehicle chassis 1 as can be derived from European Patent No. 3240723. 【0265】 The hinge 37 comprises two hinge surfaces 38, 39, the retaining rod 27 forming the hinge surface 38, and the seat / retaining element in the position as a seat or as a retaining element forming the hinge surface 39. The hinge axis 40 is directed at right angles from the hinge surfaces 38, 39. 【0266】 Regarding FIG. 17: In the embodiment shown in FIG. 17, the hinge shaft 40 is defined by an intermediate rotary rod element 41, which is arranged in an interconnected manner between a rotary handle bar element 42 arranged within the holding rod 27 and a further rotary handle bar element 43 arranged within the seat / holding element. The connection of the elements 41, 42, 43 is established via a U-joint. The elements 41, 42, 43 can form a Cardan shaft (rigid shaft). In the embodiment shown in FIG. 17, the elements 41, 42, 43 form a rotary element for controlling the rotary steering 16. 【0267】 In a possible embodiment, the elements 42, 43 are arranged parallel to the longitudinal axis of the rotary handle bar 12 or to the seat / holding element, respectively. 【0268】 A handle 28 (engaging with a further rotary handle bar element 43 such that the rotary movement of the handle 28 is converted into the rotary movement of the elements 41, 42, 43) can be used, in particular, to actuate the rotary steering. Thus, a child controlling the vehicle according to the invention can obtain the handle 28, which enables the control of the vehicle according to the invention in a manner similar to that of a driver. FIG. 17 shows a handle 28 with a horizontally arranged controller, and other forms of the handle 28 are also possible. 【0269】 The holding rod 27 and / or the seat element 29 and / or the handle 28 function as an actuating element 4 for weight transfer steering. 【0270】 The upper part of FIG. 17 shows a seat / holding element in the position of the seat element 29. Preferably, the handle 28 has an inclined position towards the vertical plane and engages with a further rotary handle bar element 43 oriented essentially horizontally. A child sitting on the seat element 29 can hold the handle 28 well. 【0271】 The lower part of Figure 17 shows the seat / holding element in the position of the holding rod 27. The handle 28 preferably has a vertical position and engages with a further rotary handle bar element 43 which is essentially vertically oriented. A child standing on the tread 26 (see Figure 11) can hold the handle well. 【0272】 In both the position of the seat / holding element as the holding rod 27 and the position of the seat / holding element as the seat element 29, the rotational movement of the handle 28 can cause the rotational movement of the elements 41, 42, 43, thereby in particular activating the rotary steering (see Figure 14). Figure 17 shows a particular case of the rotational movement of the handle 28 which causes the rotational movement of the elements 41, 42, 43. In the position of the seat / holding element as the seat element 29, this is achieved by means of the gear 44. In the position of the seat / holding element as the holding rod 27, this is achieved by a simple rotational connection of the handle 28 and a further rotary handle bar element 43. 【0273】 The upper part of Figure 17 shows a recess 45 for receiving the handle 28 and connecting it to a further rotary handle bar element 43. The lower part of Figure 17 shows a recess 46 for receiving the handle 28 and connecting it to one of the gears from the gear 44. 【0274】 The linear movement of the handle 28 can cause the rotational movement of the elements 41, 42, 43. This is possible by providing a spindle drive instead of the gear 44. 【0275】 Regarding Figure 18: Figure 18 shows a further embodiment of the seat / holding element, which further embodiment is similar to the embodiment shown in Figure 17. Only the different features will be described below. 【0276】 A further rotary handlebar element 42 extends only between the intermediate rotary rod element 41 and the gear 44. Thereby, it is achieved that the movement of the handle 28 can cause a rotary movement of the elements 41, 42, 43 and thus the actuation of the rotary steering 16 only at the position of the seat / retaining element as the seat element 29. 【0277】 The above-described embodiment features the connection of the elements 41, 42, 42 formed as shafts. This embodiment can be easily implemented mechanically. The separation and reassembly of the elements 41, 42, 43 are difficult or restricted. 【0278】 It is also possible to replace the U-joint for connecting the shafts with a further gear 47. It is also possible to use disks instead of the (further) gears 44, 47, which is also applicable to the above-described embodiment. This kind of solution is mechanically more complex, but the seat / retaining element can be removed when the lock 48 is released optionally. 【0279】 Regarding FIGS. 19 and 20: FIGS. 19 and 20 show embodiments similar to the embodiments shown in FIGS. 17 and 18, in which the U-joint is replaced by a further gear 47. 【0280】 In the embodiments shown in FIGS. 17 to 23, the retaining rod 27 and the rotary rod element 42 can be implemented in a telescopic manner, whereby the setting of the height of the seat / retaining element can be achieved. 【0281】 Regarding FIGS. 21 and 22: The embodiments shown in FIGS. 21 and 22 illustrate, for example, the connection of the rotary handlebar 12 to the handle 28 via a plurality of shafts 50, 51, 52. The shafts 50, 51, 52 are preferably flexible shafts similar to known flexible drill shafts. FIGS. 21 and 22 show an embodiment having three shafts, since the connection of the shafts 50, 51, 52 can be switched by moving the seat / holding element from the position as the seat element 29 to the position as the holding rod 27 or vice versa, at least in part. 【0282】 It is also common practice for those skilled in the art to guide the shaft 50 through the hollow hinge shaft 40 of the hinge 37 and effect a rigid and non-switchable connection of the shafts 50, 51, 52. 【0283】 With respect to FIGS. 23 and 24: FIGS. 23 and 24 show another embodiment of a vehicle according to the invention with weight transfer rotary steering. The weight transfer rotary steering is formed by a weight transfer steering 15 and a rotary steering 16, and the weight transfer steering 15 and the rotary steering 16 are connected by a mechanical limit steering system as disclosed. 【0284】 The above figures show, in particular, embodiments in which the control of the weight transfer rotary steering is effected by a seat / holding element in the position as a seat (FIG. 23) or in the position as a holding element (FIG. 24). The embodiments according to FIGS. 23 and 24 are related to another embodiment according to FIG. 14, in which the seat element 29 does not rotate. The rotary steering is actuated by the handle 28 rather than by the seat / holding element. 【0285】 Thus, the holding rod 27 is non-rotatable but releasably connected to the vehicle chassis 1 in a manner known in the prior art with respect to potential degrees of freedom. 【0286】 The rotary handlebar element 42 is guided inside the holding rod 27. An intermediate rotary rod element 41 is arranged at the upper end of the rotary handlebar element 42, and the intermediate rotary rod element 41 can be mechanically connected to a further rotary handlebar element 43 arranged within the seat element 29. Since the further rotary rod element 43 is supported eccentrically from the hinge axis of the hinge 37, said connection is established by the seat / holding element moving from its position as a seat to its position as a holding element indicated by the hinge 37, and is released by movement in the reverse direction. 【0287】 When the seat / holding element is in its position as a holding element, there is a connection between the further rotary rod element 43 and the intermediate rotary rod element 41. A handle inserted into a recess 45 arranged at the free end of the seat / holding element causes, during rotational movement, a rotational movement of the rotary rod elements 41, 42, 43 and thus causes the operation of the rotary steering 16. The rotational movement of the rotary rod element 42 causes, for example, the rotation of the cam lever included in FIG. 14. 【0288】 The intermediate rotary rod element 41 may be formed such that mechanical connection of the elements 41, 43 is possible only when the intermediate rotary rod element 41 and the further rotary rod element 43 are in a specific relative position. In FIG. 23, a mechanical connection can be established only when the recess of the intermediate rotary rod element 41 has a specific relative position with respect to the protrusion at the end of the further rotary rod element 43. The embodiments shown in FIGS. 23 and 24 can comprise a spring 49 for engaging the further rotary rod element 43 in the correct position. 【0289】 When the position of the seat / holding element is in its position as a holding element, the rotary steering can be actuated by a handle 28 inserted into the recess 45. In this position, the weight transfer steering can be actuated via the holding rod 27 and / or the seat element 29 as a holding element, and further via / alternatively the handle 28. 【0290】 When the seat / holding element is in the position of a seat, there is no mechanical connection between the rotary rod element 42 and a further rotary rod element 43. The handle 28 inserted into the recess 46 is mechanically connected to the rotary rod element 42. In the embodiment shown in FIG. 23, this mechanical connection, established preferably via a conically formed gear 44, exists independently of the position of the seat / holding element. When the seat / holding element is in the position of a holding element, the recess 46 may be covered by the housing of the seat / holding element. 【0291】 When the seat / holding element is in the position of a seat, the rotary steering can be actuated by the handle 28 inserted into the recess 46. In this position, the seat element 29 and / or the handle 28 can function as the actuating element 4 for the weight transfer steering. 【0292】 When the seat / holding element is in the position of a seat, the seat element 29, the holding rod 27, and optionally the inserted handle 28 function as the actuating element 4 for the weight transfer steering.

Claims

[Claim 1] A steering system for a child vehicle comprising a chassis (1), at least two front wheels (2, 3), a footboard (26) and / or a seat element (29) and / or a retaining bar (27), The first front wheel (2) and the second front wheel (3) are connected to the chassis (1) via a weight-shifting steering system (15). The first front wheel (2) and the second front wheel (3) can be set to a first turning direction (17) by operating the weight transfer steering (15), The first wheel (2) is supported on the first wheel suspension element (5) so as to rotate about the first axle (6), The first wheel suspension element (5) is formed as an L-shaped steering knuckle, The first wheel suspension element (5) is supported on the chassis (1) so as to rotate about the first wheel suspension rotation axis (7), The first wheel suspension rotation axis (7, 7') is tilted toward the vertical plane by the first inclination, The second front wheel (3) is supported on the second wheel suspension element (8) so as to rotate about the second axle (9), The second wheel suspension element (8) is formed as an L-shaped steering knuckle, The second wheel suspension element (8) is supported on the chassis (1) so as to rotate about the second wheel suspension rotation point (10), The second wheel suspension rotation axis (14) is tilted toward the vertical plane by the first inclination, The first wheel suspension element (5) and the second wheel suspension element (8) are connected via a single ride rod (19, 20), The first wheel suspension element (5) and the second wheel suspension element (8) are arranged symmetrically with respect to the longitudinal axis of the vehicle when the front wheels (2, 3) are aligned in the straight-line direction. The aforementioned ride rods (19, 20) move the front wheels (2, 3) in the same direction when the weight-shifting steering (15) is activated. The front wheels (2, 3) can be steered in the turning direction (17, 18) by a rotary steering mechanism (16). The rotating handlebar (12) is connected to the first wheel suspension element (5) and the second wheel suspension element (8) via a second coupling system (13), The upper end of the rotary steering rod is provided with a handle (28), thereby the rotary handlebar (12) also functions as a force transmission element (4) for operating the retaining bar (27) and the weight-shifting steering (15). The coupling system (13) connects the rotational motion of the rotary steering rod, the motion of the lie rod (19), and the rotational motion of the suspension elements (7, 8). The coupling system comprises a cam lever (33) connected to the lower end of the rotary steering rod and a tie rod lever (34) connected to the tie rod (19). The tie rod lever (34) and the cam lever (33) are connected via a pin (35) that is connected to the cam lever (33) and guided into a slot in the tie rod lever (34), and the front wheels (2, 3) are adjusted by the rotational movement of the steering rod (12). The tie rod lever (34) is attached to the tie rod (20). The weight-shifting steering (15) and the rotational steering (16) are connected via a mechanical limiting steering system (11). The mechanical limited steering system (11) is formed by an integrated configuration of the wheel suspension elements (7, 8) and / or track rods (19, 20), This achieves the setting of the first wheel (2), which can be set by the weight-shifting steering (15), and / or the second wheel (3), which can be set by the rotational steering (16), to the same turning direction. A steering system characterized by the following features. [Claim 2] The pin (35) is formed to be removable, or the cam lever (33) is formed to be removable, or the tie rod lever (34) is detachable from the tie rods (19, 34), As a result, the child vehicle can be steered solely by the weight-shifting steering (15). The steering system according to claim 1, characterized by the features described above. [Claim 3] The pin (35) and the tie rod lever (34) are integrally formed, The steering system according to claim 1, characterized by the features described above. [Claim 4] The pin (35) and the track rods (19, 20) are fixedly connectable to lock the steering, The steering system according to claim 1, characterized by the features described above. [Claim 5] The rotary steering rod (12) is provided with a handle (28) at its upper end for operating the rotary steering, The steering system according to claim 1, characterized by the features described above. [Claim 6] The child vehicle comprises a chassis (1), a footboard (26), and a rotating handlebar (12) having a handle (28) at its upper end, as elements for operating the steering system. A child's vehicle equipped with the steering system described in feature 1. [Claim 7] A child's vehicle comprising the steering system described in Claim 1, The child vehicle comprises the chassis (1), the footboard (26), the rotating handlebar (12) having a handle (28) at its upper end, and a seat element (29) attached to the swivel steering bar (12). A children's vehicle characterized by the following features. [Claim 8] A child's vehicle comprising the steering system described in Claim 1, The child vehicle comprises a chassis (1), a footboard (26), a retaining bar (27) rigidly attached to the chassis (1), a seat element (29) attached to the retaining bar, and a rotating handlebar (12) or a rotating rod element (42). A children's vehicle characterized by the following features. [Claim 9] A child's vehicle comprising the steering system described in Claim 1, The aforementioned child vehicle comprises the chassis (1), the footrest (26), the rotating handlebar (12), and a sitting / standing element connected to the rotating handlebar (12), The aforementioned sitting / standing element is rotatable relative to the rotating handlebar (12). A children's vehicle characterized by the following features. [Claim 10] A child's vehicle comprising the steering system described in Claim 1, The child vehicle comprises a chassis (1), a footboard (26), a non-rotatable retaining bar (27) attached to the chassis (1), and a sitting / standing element connected to the retaining bar (27) via a joint (37) or plug connection. The sitting / standing element is rotatable relative to the holding bar (27), The aforementioned sitting / standing element is not an operating element for turning steering, The retaining bar (27) and the sitting / standing element form a joint surface (38, 39), and the joint axis (40) is oriented perpendicular to the joint surface (38, 29). The retaining bar (27) is formed as an element having a hollow cross-section for housing the pivot link rod element (42), A further pivoting rod element (43) is arranged within the sitting / standing element. The intermediate pivot rod element (41) defines the hinge axis (40), The pivot link rod element (42), the intermediate pivot rod element (41), and the further pivot link rod element (43) are connected via a cardan joint and are arranged parallel to the longitudinal axis of the retaining rod (27) and the seat / retaining element. A handle (28) that can be inserted into a recess (46) formed in the seating / standing element or a recess (45) located at the free end of the seat / support element engages with the further rotating link rod element (43) and functions as an actuation element of the rotating link. A children's vehicle characterized by the following features. [Claim 11] A child's vehicle comprising the steering system described in Claim 1, The child's vehicle comprises a chassis (1), a footboard (26), a retaining bar (27) attached to the chassis (1) in a non-rotatable and removable manner, and a sitting / standing element connected to the retaining bar (27) via a joint (37). The aforementioned sitting / standing element can be moved relative to the holding bar (27) from a position as a seat element to a position as a handrail element. The pivoting rod element (42) is guided inside the holding bar (27), An intermediate rotating rod element (41) is positioned at the upper end of the rotating rod element (42), A further rotating rod element (43) is positioned within the seated element at an eccentric position with respect to the hinge axis. The movement of the aforementioned sitting / standing element to its position as a seating element establishes a connection between the intermediate rotating rod element (41) and the further rotating rod element (43). The movement of the sitting / standing element to its position as a support element releases the connection between the intermediate rotating rod element (41) and the further rotating rod element (43). At this position of the seating / standing element as a retaining handle, the retaining handle inserted into the recess (45) located at the free end of the seat / retaining element causes the rotational movement of the rotating link rod elements (41, 42, 43) during rotational movement. A children's vehicle characterized by the following features. [Claim 12] In the seating position of the seating / standing element, the handrail fitted into the recess (46) is connected to the swivel steering rod element (42) to operate the swivel steering, The child vehicle according to feature 11. [Claim 13] The intermediate rotating rod element (41) is provided with a recess, The further rotating rod element (43) is provided with a projection, As a result, the connection between the intermediate rotating rod element (41) and the further rotating rod element (43) can only be established if the recess of the intermediate rotating rod element (41) is in a specific relative position to the projection of the further rotating rod element (43). The child vehicle according to feature 11.

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