Wheel holders and associated procedures

Abstract

A wheel holder (2) for attachment to a wheel (1), in particular to a wheel (1) of a motor vehicle, has at least two arms (22, 23, 24) extending outwards in a common plane from a central housing (10) of the wheel holder (2). Each of the arms (22, 23, 24) has at least one movable element (32a, 33a, 34a) that is movable outwards and inwards along the arm (22, 23, 24). A removable claw (12, 13, 14; 42, 43, 44) can be mounted on each of the movable elements (32a, 33a, 34a), which is configured to contact the tread (7) of a wheel (1) when the wheel holder (2) is mounted on the wheel (1). The wheel holder (2) has at least two sets of claws (12, 13, 14; 42, 43, 44) which can be selectively mounted on the movable elements (32a, 33a, 34a). Each set of claws (12, 13, 14; 42, 43, 44) comprises at least as many claws (12, 13, 14; 42, 43, 44) as the wheel holder (2) has arms (22, 23, 24).The claws (12, 13, 14; 42, 43, 44) of different sets of claws (12, 13, 14; 42, 43, 44) are designed differently, so that the wheel holder (2) can be adapted to different sizes of the wheel (1) by selecting a set of claws (12, 13, 14; 42, 43, 44) which are mounted on the movable elements (32a, 33a, 34a).

Description

[0001] The invention relates to wheel holders, in particular to wheel holders for vehicle alignment. The invention also relates to methods for attaching claws to a wheel holder and for detaching claws from a wheel holder.

[0002] For vehicle measurement, wheel holders that can carry sensors and / or targets are often mounted on the wheels of the vehicle to be measured.

[0003] A wheel holder usually has arms that are adjustable in length, which allows the wheel holder to be adapted to different wheel sizes.

[0004] DE 10 2019 113 132 A1 discloses a wheel holder for attachment to a wheel, in particular to a wheel of a motor vehicle, comprising at least two arms extending radially outward in a common plane from a base plate of the wheel holder. Each of the arms has at least one movable element movable in the radial direction. A removable claw is provided on each of the movable elements, which is designed to contact the running surface of the wheel when the wheel holder is mounted on a wheel. At least one of the claws can be attached to at least one of the movable elements in at least two different orientations.

[0005] DE 10 2018 215 165 A1 discloses a wheel holder for attachment to a wheel, in particular to a wheel of a motor vehicle, the wheel holder comprising: at least two arms extending outwards in a radial direction; each of the arms comprising at least one element movable in the radial direction, which is provided for bearing against the wheel; a locking element configured such that the movable elements can be clamped against the wheel by actuating the locking element and can be fixed such that the movable elements are no longer movable in the radial direction in order to fix the wheel adapter to the wheel; and an unlocking element configured such that a fixation of the movable elements can be released by actuating the unlocking element.

[0006] CN 205 765 724 U discloses a wheel holder comprising a housing, a rotatably arranged drive bevel gear and a driven clamping mechanism.

[0007] If the same wheel holder is to be attached to different wheels that have very different sizes, there is a possibility that the adjustability of the arms may not be sufficient to attach the same wheel holder to the different wheels of different sizes.

[0008] It is an object of the invention to provide an improved wheel holder that can be attached to wheels that have very different sizes.

[0009] Various embodiments of wheel holders according to the invention are claimed in independent claims 1, 3, 5, 8, and 11. The dependent claims contain optional features of wheel holders according to the invention.

[0010] Patent claims 16 to 18 claim methods for attaching or detaching claws to or from a wheel holder according to the invention.

[0011] Patent claims 19 and 20 claim methods for attaching a wheel holder according to the invention to a wheel.

[0012] A wheel holder according to the invention, which is intended for attachment to a wheel, in particular to a wheel of a motor vehicle, has at least two arms which extend outwards in a common plane from a central housing of the wheel holder. The at least two arms can extend outwards from the central housing, in particular in a radial direction or in a nearly radial direction. Each of the arms comprises at least one movable element which is movable outwards and inwards along the arm. A removable claw can be mounted on each of the movable elements, which claw is designed to contact the tread of a wheel in order to fix the wheel holder to a wheel when the wheel holder is mounted on the wheel.

[0013] A wheel holder according to the invention has at least two sets of claws ("claw sets") that can be selectively mounted on the movable elements, in particular on the outer ends of the movable elements. Each set of claws comprises at least as many claws as the wheel holder has arms. The claws of different claw sets are designed differently.

[0014] By selecting and mounting a suitable claw set from various claw sets, the wheel holder can be adapted to different sizes of the wheel on which the wheel holder is to be mounted.

[0015] The invention also includes a method of attaching a wheel holder according to the invention to a wheel, the method comprising selecting a set of claws suitable for the wheel from at least two different sets of claws, attaching the claws of the selected set to the movable elements of the arms; and attaching the wheel holder to the wheel by means of the claws mounted on the movable elements.

[0016] A wheel holder according to the invention can thus be attached to a multitude of different wheels, which can in particular have very different sizes, by specifically selecting and replacing the claws attached to the arms of the wheel holder. A single wheel holder according to the invention can therefore be used for a multitude of different motor vehicles. A wheel holder according to the invention can in particular be used for cars as well as for trucks and other commercial vehicles. The number of wheel holders that must be kept in a workshop can thus be considerably reduced. Since different wheel holders do not have to be developed, produced, and kept in stock for different vehicle types, the costs for manufacturing and storing the wheel holders can also be significantly reduced.

[0017] In one embodiment, each of the claws has a first leg and a second leg. The two legs are aligned at an angle, in particular at a substantially right angle, to one another. The first leg extends substantially in the direction of one of the arms of the wheel holder when the claw is mounted on one of the movable elements, and the second leg extends substantially along a running surface of the wheel when the wheel holder is mounted on the wheel. With such claws, which have two legs arranged at an angle to one another, the wheel holder can be attached and fixed to a wheel particularly well and securely.

[0018] In one embodiment, the second leg has at least one toothed portion designed to contact the wheel's running surface when the wheel holder is mounted on the wheel. Such a toothed portion can increase the friction between the second leg of the wheel holder and the wheel's running surface. The wheel holder can thus be fixed to the wheel particularly firmly and securely.

[0019] In one embodiment, the claws each have a spacer extending inward from the respective claw toward the wheel axis. The spacers allow the wheel holder to be attached to the wheel at a defined lateral distance, which is predetermined by the spacers formed on the claws.

[0020] In one embodiment, the first legs of all claws of a set of claws have the same length. Alternatively or additionally, the second legs of all claws of a set of claws have the same length. In particular, all claws of a set of claws can be designed identically, so that the claws of a set of claws are interchangeable. This simplifies the assembly of the claws on the wheel holder, as each claw of a set of claws can be attached to each arm of the wheel holder.

[0021] In one embodiment, the first legs of claws belonging to different sets of claws have different lengths. In this way, the wheel holder can be adapted to different wheel sizes, especially wheels with different diameters, by selecting the set of claws attached to the arms of the wheel holder.

[0022] In one embodiment, the second legs of claws belonging to different sets of claws have different lengths. In this way, the wheel holder can be adapted to different wheel sizes, particularly to wheels of different widths, by selecting the set of claws attached to the arms of the wheel holder. Furthermore, if necessary, the lateral distance of a measuring plate attached to the wheel holder from the wheel to which the wheel adapter is attached can be varied by selecting the claws.

[0023] In one embodiment, each of the movable elements of the wheel holder has a suspension wall and a locking wall opposite the suspension wall. The suspension wall and the locking wall define a cavity formed in the movable element between the suspension wall and the locking wall.

[0024] In one embodiment, the hook-in wall is a rear wall facing the wheel when the wheel holder is mounted to the wheel, and the snap-in wall is a front wall located on the side of the wheel holder facing away from the wheel when the wheel holder is mounted to the wheel.

[0025] In an alternative embodiment, the engaging wall is a rear wall facing the wheel when the wheel holder is mounted on the wheel, and the hooking wall is a front wall located on the side of the wheel holder facing away from the wheel when the wheel holder is mounted on the wheel.

[0026] In one embodiment, the movable elements of the arms of the wheel holder are designed as hollow square tubes in which a cavity is formed which is delimited on one side by the hanging wall and on an opposite side by the snap-in wall.

[0027] In one embodiment, a suspension opening is formed in the suspension wall of each claw, and a rigid suspension projection is formed on each claw. The rigid suspension projection is intended to be inserted or suspended into the suspension opening.

[0028] In one embodiment, a latching opening is formed in the latching wall of each claw, and a resiliently mounted latching projection is formed on each claw. The resiliently mounted latching projection is designed to be inserted into the latching opening and latch into the latching opening.

[0029] The interaction of the rigid suspension projection with the suspension opening and the elastically mounted locking projection with the locking opening makes it possible to attach a claw securely but at the same time easily detachably to a movable element of a wheel holder.

[0030] In one embodiment, the suspension projection can be inserted into the suspension opening from outside the movable element.

[0031] In one embodiment, the locking projection can be inserted into the locking opening from the cavity formed in the movable element. In such a configuration, the claw can be attached to the movable element, released from the movable element, and removed from the movable element particularly easily and conveniently.

[0032] In one embodiment, the claw comprises an elastic arm having a fixed end connected to the claw and an opposite free end, and the locking projection is formed at the free end of the elastic arm. In this way, the locking projection can be easily elastically attached and supported to the claw.

[0033] In one embodiment, the suspension opening and the latching opening are spaced apart from each other along the longitudinal direction of the movable element. The suspension opening can, in particular, be formed closer than the latching opening to an outer end of the movable element facing away from the housing. Such a configuration makes it possible to attach a claw according to the invention to the movable element in a first pivoting movement and to remove it from the movable element in a second, opposite pivoting movement.

[0034] In one embodiment, the hooking projection is formed on an inner side of the claw facing the wheel when the wheel holder is attached to the wheel; and the engaging projection is formed on an outer side of the claw opposite the inner side and facing away from the wheel when the wheel holder is attached to the wheel.

[0035] In an alternative embodiment, the engaging projection is formed on an inner side of the claw facing the wheel when the wheel holder is attached to the wheel; and the engaging projection is formed on an outer side of the claw opposite the inner side and facing away from the wheel when the wheel holder is attached to the wheel.

[0036] In one embodiment, the locking projection is designed as a spring-loaded locking element that is pressed into the locking opening by an elastic spring. The spring-loaded locking element can, in particular, comprise a spring-loaded cylinder, a spring-loaded ball, or a spring-loaded hemisphere. A spring-loaded locking element provides an alternative to a locking projection supported on an elastic arm, which also allows the claw to be securely but releasably attached to a movable element of the wheel adapter.

[0037] In one embodiment, the spring-loaded latching element and the resilient spring are arranged on a rigid arm extending from the claw into the cavity formed in the movable element.

[0038] In one embodiment, the claw additionally has a stabilizing gap defined by at least one stabilizing projection. An outer end region of the locking wall can be inserted into the stabilizing gap when the claw is attached to the movable element. The at least one stabilizing projection extends, in particular, from a side of the claw facing the movable element to the movable element when the claw is attached to the movable element.

[0039] In one embodiment, the at least one stabilizing projection extends in particular substantially parallel to the elastic arm on which the latching projection is supported, so that the stabilizing gap is formed between the elastic arm and the at least one stabilizing projection.

[0040] In one embodiment, the at least one stabilizing projection extends in particular substantially parallel to the fixed arm on which the spring-loaded latching element is supported, so that the stabilizing gap is formed between the fixed arm and the at least one stabilizing projection.

[0041] By means of such a stabilizing gap, into which an outer end portion of the locking wall is inserted when the claw is attached to the movable element, the stability of the mechanical connection between the claw and the movable element can be further increased.

[0042] In one embodiment, at least one bore is formed in at least one claw and in at least one movable element. In such an embodiment, a claw can be fastened to the at least one movable element by at least one fastening element that is guided through at least two of the bores. The at least one fastening element can in particular be designed as a cylindrical pin. In this way, the claw can be securely but at the same time easily detachably fastened to the movable element. The at least one fastening element can be secured in the bore by a retaining ring and / or a retaining pin.

[0043] In one embodiment, at least one of the bores is designed as a threaded bore, and the at least one fastening element is designed as a threaded bolt or screw. A fastening element designed as a threaded bolt or screw can be fixed in the threaded bore by screwing it into the at least one threaded bore. As an alternative to a threaded bore, at least one nut can be provided, which is screwed onto the threaded bolt or screw to fix the threaded bolt or screw in the bores.

[0044] The invention also encompasses a method for attaching a claw to a movable element of a wheel holder according to the invention. The method comprises inserting a first leg of the claw into a cavity formed in the movable element; and guiding at least one fastening element through bores formed in the first leg and in the movable element in order to fasten the claw to the movable element. The method can further comprise screwing the at least one fastening element with nuts or with at least one bore formed as a threaded bore. Using a method according to the invention, a claw according to the invention can be securely fastened to a movable element of a wheel adapter according to the invention.

[0045] The invention also encompasses a method for releasing a claw from a movable element of a wheel holder according to the invention. The method comprises loosening any screw connection of the at least one fastening element, removing the at least one fastening element from the bores formed in the first leg and in the movable element, and then removing the first leg of the claw from the cavity formed in the movable element.

[0046] The invention also encompasses a further method for attaching a claw to a movable element of a wheel adapter according to the invention. The further method comprises inserting the rigid engagement projection formed on the claw into the engagement opening formed in the engagement wall of the movable element of the wheel adapter; pivoting the claw about the rigid engagement projection toward the engagement wall of the movable element; and inserting the elastically mounted engagement projection formed on the claw into a cavity formed in the movable element and from the cavity into the engagement opening formed in the engagement wall of the movable element. In this way, a claw according to the invention can be easily and securely attached and fastened to a movable element of a wheel adapter according to the invention.Through the interaction of the rigid suspension projection with the suspension opening and the elastically mounted locking projection with the locking opening, the claw is securely but at the same time easily releasably attached to a movable element of a wheel holder.

[0047] The invention also encompasses a method for releasing a claw from a movable element of a wheel adapter according to the invention. The method comprises pressing the elastically mounted latching projection from the outside through the latching opening into the cavity formed in the movable element; pivoting the claw around the rigid suspension projection, which is suspended in the suspension opening, away from the latching wall until the elastically mounted latching projection has emerged from the cavity through an open end of the movable element; and removing the rigid suspension projection from the suspension opening. In this way, a claw according to the invention can be easily and safely released from a movable element of a wheel adapter according to the invention.

[0048] An embodiment of a wheel holder according to the invention is described in more detail below with reference to the attached figures. Short description of the characters Fig. 1 shows a schematic representation of a wheel with a wheel holder mounted on the wheel, which has a first set of claws. Fig. 2 shows a perspective view of a wheel holder according to an embodiment of the invention with the first set of claws and extended arms. Fig. 3 shows a perspective view of the Fig. 2 shown wheel holder with the first set of claws and retracted arms. Fig. 4 shows a side view of the Fig. 3 shown wheel holder. Fig. 5 shows a perspective view of a wheel holder according to an embodiment of the invention with a second set of claws and retracted arms. Fig. 6 shows a side view of the Fig. 5 shown wheel holder. Fig. Figure 7 shows a schematic representation of a wheel with a wheel holder mounted on the wheel with the second set of claws. Fig. Figure 8 shows a side view of a claw fixed to the movable element of an arm of a wheel holder by means of two screws. Fig. Figure 9 shows the interface where the claw and the movable element are connected in an enlarged view. Fig. 10 shows a schematic representation of a section through a claw and an outer end region of a movable element of a wheel adapter according to an embodiment of the invention. Fig. 11 shows a schematic representation of a section through a claw and an outer end region of a movable element of a wheel adapter according to a further embodiment of the invention. Fig. 12 shows a schematic representation of a section through a claw and an outer end region of a movable element of a wheel adapter according to another embodiment of the invention. Character description

[0049] The Fig. 1 shows a schematic representation of a wheel 1 with a wheel holder 2 mounted on the wheel 1, to which a measuring plate 3, also referred to as “target” or “measuring target”, is attached.

[0050] Fig. 2 shows a perspective view of a wheel holder 2 according to an embodiment of the invention with extended arms 22, 23, 24. Fig. 3 shows a perspective view of the Fig. 2 shown wheel holder 2 with retracted arms 22, 23, 24, and Fig. 4 shows a side view of the Fig. 3 shown wheel holder 2.

[0051] The wheel holder 2 has a central housing 10 and three arms 22, 23, 24, which extend outwards from the central housing 10 of the wheel holder 2. The arms 22, 23, 24 extend in a common plane which is orthogonal to the plane of the drawing of the Fig. 4 is aligned.

[0052] The arms 22, 23, 24 each comprise an inner stationary element 32b, 33b, 34b, which is fixedly connected to the housing 10, and an outer movable element 32a, 33a, 34a, which is displaceable inwardly and outwardly relative to the inner stationary element 32b, 33b, 34b of the respective arm 22, 23, 24. The length of the arms 22, 23, 24 can thus be varied by moving, in particular displacing, the outer movable elements 32a, 33a, 34a relative to the inner stationary elements 32b, 33b, 34b.

[0053] Claws 12, 13, 14 are provided at outer ends of the movable elements 32a, 33a, 34a facing away from the central housing 10.

[0054] Each of the claws 12, 13, 14 has a first leg extending parallel to the movable element 32a, 32b, 32c to which the respective claw 12, 13, 14 is attached. In the Fig. In the embodiment shown in Figures 2 to 4, the first legs of the claws 12, 13, 14 are not visible since they are inserted into the respective movable element 32a, 32b, 32c and are covered by it.

[0055] Each of the claws 12, 13, 14 further comprises a second leg 12b, 13b, 14b, which is oriented at an angle to the first leg. The second leg 12b, 13b, 14b can, in particular, be oriented substantially orthogonally to the first leg, so that the second leg 12b, 13b, 14b is oriented substantially orthogonally to the movable element 32a, 32b, 32c to which the claw 12, 13, 14 is attached.

[0056] The second legs 12b, 13b, 14b of the claws 12, 13, 14 are intended to be mounted on the running surface 7 of a Fig. 2 to 4 not shown wheel 1 to fix the wheel holder 2 to the wheel 1, as shown in the Fig. 1. The surfaces of the second legs 12b, 13b, 14b facing the running surface 7 of the wheel 1 can each be formed with a toothed region 60 to increase the friction between the second legs 12b, 13b, 14b and the running surface 7 of the wheel 1.

[0057] In the Fig. In the embodiment shown in Figures 2 to 4, the claws 12, 13, 14 each have a third leg 12c, 13c, 14c, which extends between the first leg and the second leg 12b, 13b, 14b and connects the first leg to the second leg 12b, 13b, 14b.

[0058] The third leg 12c, 13c, 14c is inclined relative to both the first leg and the second leg 12b, 13b, 14b.

[0059] In alternative embodiments not shown in the figures, the second legs 12b, 13b, 14b can connect directly to the first legs without third legs 12c, 13c, 14c being provided between the first legs and the second legs 12b, 13b, 14b.

[0060] The three in the Fig. The claws 12, 13, 14 shown in Figures 2 to 4 are identically designed and together form a first set of claws 12, 13, 14. In particular, the first legs of all three claws 12, 13, 14 of the first set of claws 12, 13, 14 have an identical first leg length. Likewise, the second legs 12b, 13b, 14b of all three claws 12, 13, 14 have an identical second leg length, and the third legs 12b, 13b, 14b of all three claws 12, 13, 14 have an identical third leg length.

[0061] By moving at least one of the movable elements 32a, 33a, 34a outwards, the length of the arms 22, 23, 24 can be extended so that the wheel holder 2 can be conveniently applied to the wheel 1 in the axial direction of the wheel 1.

[0062] Fig. Fig. 2 shows the wheel holder 2 in a state in which the movable elements 32a, 33a, 34a are moved outwards so that the arms 22, 23, 24 of the wheel holder 2 are long.

[0063] By moving at least one of the movable elements 32a, 33a, 34a inwards, ie in the direction of the housing, the length of the arms 22, 23, 24 can be shortened so that the claws 12, 13, 14 rest on the running surface 7 of the wheel 1 and fix the wheel holder 2 on the wheel 1, as shown in the Fig. 1 is shown. The Fig. 3 and Fig. 4 shows the wheel holder 2 in a state in which the movable elements 32a, 33a, 34a have moved inward, so that the arms 22, 23, 24 of the wheel holder 2 are short.

[0064] The wheel holder 2 can be equipped with a movement mechanism designed to move the movable elements 32a, 33a, 34a selectively inward and outward. In particular, the movement mechanism can be designed to ensure that the three movable elements 32a, 33a, 34a are moved synchronously with one another.

[0065] Examples of movement mechanisms that can be used in a wheel holder 2 according to the invention are disclosed in the documents DE 10 2020 112 816 B3, DE 10 2019 113 128 A1, DE 10 2019 113 122 A1, and DE 10 2019 113 132 A1. However, a wheel holder 2 according to the invention is not limited to the movement mechanisms described in these documents. A wheel holder 2 according to the invention can also have another movement mechanism that is suitable for moving the movable elements 32a, 33a, 34a inward and outward.

[0066] The wheel holder 2 may also comprise a fixing mechanism which allows the movable elements 32a, 33a, 34a to be fixed in a desired position, in particular in a position in which they rest firmly against the tread 7 of a wheel 1, in order to securely fasten the wheel holder 2 to the wheel 1.

[0067] If the wheel holder 2 is to be mounted on different wheels 1 which have very different tire sizes, e.g. on car wheels and on truck wheels, it may happen that the previously described shortening and lengthening of the arms 22, 23, 24 by moving the movable elements 32a, 33a, 34a inwards and outwards is not sufficient to be able to adapt the length of the arms 22, 23, 24 to the different tire sizes.

[0068] A wheel holder 2 according to the invention makes it possible to replace the claws 12, 13, 14 attached to the movable elements 32a, 33a, 34a of the arms 22, 23, 24.

[0069] By replacing the claws 12, 13, 14 attached to the movable elements 32a, 33a, 34a of the arms 22, 23, 24 with claws 42, 43, 44 having different dimensions, in particular different lengths, the wheel holder 2 can be easily and cost-effectively adapted to different wheels 1 having very different tire sizes. This avoids the need to keep and use different wheel holders 2 for wheels 1 on different vehicles having very different tire sizes.

[0070] Fig. Figure 5 shows a perspective view of the wheel holder 2 with claws 42, 43, 44, a second set of claws 42, 43, 44 having different dimensions than those shown in the Fig. 2 to 4 have claws 12, 13, 14 of the first set. Fig. 6 shows a side view of the wheel holder 2 with the Fig. 5 shown claws 42, 43, 44 of the second set of claws 42, 43, 44.

[0071] The Fig. 5 and Fig. 6 shown claws 42, 43, 44 of the second set have both in a first plane E1 (see Fig. 6), which is aligned parallel to the wheel 1 when the wheel holder 2 is mounted on the wheel 1 (see Fig. 1), as well as in a second plane E2, which is orthogonal to the first plane E1, a larger dimension / length than that shown in the Fig. 2 to 4 shown claws 12, 13, 14 of the first set of claws 12, 13, 14.

[0072] Just like the ones in the Fig. The claws 12, 13, 14 shown in Figures 2 to 4 also have the Fig. 5 and Fig. 6 each have a first leg, a second leg 42b, 43b, 44b and a third leg 42c, 43c, 44c, wherein the third leg 42c, 43c, 44c connects the second leg 42b, 43b, 44b to the first leg.

[0073] As with the one in the Fig. 2 to 4, the first legs are also in the Fig. 5 and Fig. 6 are not visible because they are inserted into the movable elements 22b, 23b, 24b and are covered by them.

[0074] The second legs 42b, 43b, 44b are intended to rest on the running surface 7 of the wheel 1 and to fix the wheel holder 2 to the wheel 1 when the wheel holder 2 is attached to the wheel 1, as shown in the Fig. 1. In order to increase the friction between the second legs 42b, 43b, 44b and the running surface 7 of the wheel 1, the second legs 42b, 43b, 44b can each be formed with a toothed region 60 on the side facing the running surface 7 of the wheel 1.

[0075] The Fig. 5 and Fig. The claws 42, 43, 44 of the second set of claws 42, 43, 44 shown in Figure 6 are identically designed. In particular, the first legs 42a, 43a, 44a of all three claws 42, 43, 44 of the second set of claws 42, 43, 44 have an identical first leg length. Likewise, the second legs 42b, 43b, 44b of all three claws 42, 43, 44 of the second set of claws 42, 43, 44 have an identical second leg length, and the third legs 42c, 43c, 44c of all three claws 42, 43, 44 of the second set of claws 42, 43, 44 have an identical third leg length.

[0076] As previously described, at least one of the first, second and third leg lengths of the second set of jaws 42, 43, 44 differs from the corresponding leg length of the first set of jaws 12, 13, 14.

[0077] The Fig. Figure 7 shows a schematic representation of a wheel 1 having a wheel 1 on which a wheel holder 2 is mounted, which is equipped with the claws 42, 43, 44 of the second set of claws 42, 43, 44.

[0078] Due to the larger dimensions of the claws 42, 43, 44 of the second set of claws 42, 43, 44 in the first plane E1, which is aligned parallel to the plane of the arms 22, 23, 24 of the wheel holder 2, the wheel holder 2 can be provided with the Fig. 5 and Fig. 6 shown claws 42, 43, 44 of the second set of claws 42, 43, 44 can be mounted on wheels 1 which have a larger diameter D than the wheels 1 to which the wheel holder 2 can be mounted when used with the Fig. 2 to 4 shown claws 12, 13, 14 of the first set of claws 12, 13, 14.

[0079] Due to the larger dimensions of the Fig. 5 and Fig. 6 shown claws 42, 43, 44 of the second set of claws 42, 43, 44 in the second plane E2, which is oriented orthogonally to the first plane E1, the Fig. 5 to 7, when mounted on the wheel 1, has a greater lateral distance from the wheel 1 than that shown in the Fig. Wheel holders shown in 1 to 4 2.

[0080] The Fig. 5 and Fig. The claws 42, 43, 44 of the second set of claws 42, 43, 44 shown in Figure 6 each optionally have a spacer 52, 53, 54. The spacers 52, 53, 54 extend from the claws 42, 43, 44, in particular from the third legs 42c, 43c, 44c of the claws 42, 43, 44, in a common plane E3 (see Fig. 6), which is aligned parallel to the first plane E1 and orthogonal to the second plane E2, inwards.

[0081] A wheel holder 2, as used in the Fig. 5 and Fig. 6 is preferably mounted on a wheel 1 such that the spacers 52, 53, 54 bear against the side of the wheel 1 facing the housing 10 of the wheel holder 2 and thus define the position of the wheel holder 2, in particular the distance of the wheel holder 2 from the wheel 1, in the direction of the axis A of the wheel 1 (“axial direction”).

[0082] The Fig. The claws 12, 13, 14, 42, 43, 44 shown in Figures 2 to 6 are shown only as examples. The dimensions of the claws 12, 13, 14, 42, 43, 44 of two different sets of claws 12, 13, 14, 42, 43, 44 can, in particular, differ from one another only in the first plane E1, i.e., parallel to the side of the wheel 1, or only in the second plane E2, i.e., in the axial direction of the wheel 1. There can also be more than two sets of claws 12, 13, 14, 42, 43, 44 with different dimensions, which can be optionally mounted on the wheel holder 2.

[0083] By varying the dimensions of the claws 12, 13, 14, 42, 43, 44 in the first plane E1, the wheel holder 2 can be adapted to wheels 1 with different diameters D. By varying the dimensions of the claws 12, 13, 14, 42, 43, 44 in the second plane E2, the distance of the wheel holder 2 from the wheel 1 on which the wheel holder 2 is mounted can be varied.

[0084] A wheel holder 2 according to the invention can thus be flexibly adapted to wheels 1 of different sizes and, if necessary, also to different measuring panels 3 and measuring methods by exchanging the claws 12, 13, 14, 42, 43, 44 which are attached to the movable elements 32a, 33a, 34a of the arms 32, 33, 34.

[0085] In the following, various possibilities are described which make it possible to fasten the claws 12, 13, 14, 42, 43, 44 to the movable elements 32a, 33a, 34a of the arms 32, 33, 34 in such a way that they are interchangeable according to the invention.

[0086] Fig. Figure 8 shows a side view of a claw 42 which is fixed by means of two fastening elements 62, in particular screws, to the movable element 32a of an arm 32 of a (in the Fig. 8 not shown) wheel holder 2. Fig. 9 shows the interface at which the claw 42 and the movable element 32a are connected to each other in an enlarged view.

[0087] In the Fig. In the embodiment shown in Figure 8, the movable element 32a of the arm 32 is designed as a hollow square tube. The first leg 42a of the claw 42 is also designed as a square tube. The dimensions of the first leg 42a and the dimensions of the movable element 32a are selected such that the first leg 42a can be inserted into a cavity in the square tube of the movable element 32a, as shown in Figures Fig. 8 and Fig. 9 is shown.

[0088] In the movable element 32a and in the first leg 42a of the claw 42, at least two bores are formed, which allow fastening elements 62, such as screws, threaded bolts or fixing pins, to be guided through the movable element 32a and the first leg 42a of the claw 42 in order to fasten the movable element 32a to the first leg 42a of the claw 42. The fastening elements 62 can, for example, be designed as hexagon socket screws, as shown in the Fig. 8 and Fig. 9. However, other screw types can also be used.

[0089] In further embodiments not explicitly shown in the figures, more or fewer than two fastening elements 62 may be used.

[0090] At least some of the bores formed in the movable element 32a and / or in the first leg 42a of the claw 42 may be formed as threaded bores which allow fastening elements 62 formed as screws to be screwed into the threaded bores in order to fix the fastening elements 62 in the movable element 32a and / or in the first leg 42a of the claw 42.

[0091] Alternatively, nuts (not visible in the figures) may be provided on the opposite side of the movable element 32a, facing away from the viewer, which are screwed onto fastening elements 62 designed as screws in order to fix the fastening elements 62 in the bores.

[0092] Another possibility to detachably attach the claw 42 to the movable element 32a is shown in the Fig. 10 shown. Fig. 10 shows a schematic representation of a section through a claw 12 and an outer end region of a movable element 32a.

[0093] The movable element 32a is again designed as a hollow square tube. Fig. In the sectional view shown in Figure 10, a rear wall 64 and a front wall 66 of the square tube are visible, which define an inner cavity 74 within the square tube.

[0094] When the wheel holder 2 is mounted on a wheel 1 as shown in the Fig. 1 and Fig. As shown in Figure 7, the rear wall 64 of the movable element 32a faces the wheel 1. The front wall 66 faces away from the wheel 1 and toward a measuring panel 3 mounted on the wheel holder 2.

[0095] The rear wall 64 is hereinafter referred to as the “hanging wall 64” and the front wall 66 is hereinafter referred to as the “snap-in wall 66”.

[0096] The outer end of the movable element 32a, facing away from the housing 10 of the wheel holder 2, which is in the Fig. 10, is open to the outside and is designed as a receiving area 65 for receiving and fastening the claw 12.

[0097] The claw 12 is formed with a fastening region 68 corresponding to the receiving region 65, which is intended to cooperate with the receiving region 65 in order to fasten the claw 12 to the movable element 32a.

[0098] In particular, a suspension opening 70 is formed in the suspension wall 64. The suspension opening 70 is formed, in particular, at a first distance a from the outer end of the movable element 32a.

[0099] The suspension opening 70 can in particular be formed at a first distance a between 10 mm and 50 mm from the outer end of the movable element 32a.

[0100] The fastening region 68 of the claw 12 is formed with a rigid suspension projection 80 which can be inserted into the suspension opening 70 formed in the suspension wall 64 of the movable element 32a in order to fasten the claw 12 to the movable element 32a.

[0101] The rigid suspension projection 80 is in particular designed such that it can be inserted from an outer side of the movable element 32a into the suspension opening 70 which is formed in the suspension wall 64 of the movable element 32a.

[0102] When the rigid suspension projection 80 is inserted or suspended in the suspension opening 70, the claw 12 is in the plane of the drawing of the Fig. 10 can be pivoted around the rigid suspension projection 80, as shown in the Fig. 10 is represented by the arrows S1 and S2.

[0103] A locking opening 72 is formed in the locking wall 66 facing away from the wheel 1. The locking opening 72 is formed at a second distance b from the outer end of the movable element 32a. The second distance b is greater than the first distance a at which the suspension opening 70 is formed in the suspension wall 64.

[0104] The latching opening 72 may in particular be formed at a second distance b between 10 mm and 50 mm from the outer end of the movable element 32a.

[0105] The fastening portion 68 of the claw 12 has an elastically mounted latching projection 82 which is designed to be inserted into the latching opening 72 formed in the latching wall 66 of the movable element 32a in order to fasten the claw 12 to the movable element 32a, as shown in the Fig. 10 is shown.

[0106] The locking projection 82 is formed in particular on a movable free end 83 of an elastic arm 84 which extends from the fastening region 68 of the claw 12 into the cavity 74 formed in the movable element 32.

[0107] When the claw 12 is attached to the movable member 32a as shown in the Fig. 10, the engaging projection 82 extends outwardly from the cavity 74 formed in the movable member 32a through the engaging opening 72 formed in the engaging wall 66 of the movable member 32a.

[0108] The locking projection 82 and the rigid suspension projection 80, which extends through the suspension opening 70 formed in the suspension wall 64, fix the claw 12 to the movable element 32a.

[0109] To further increase the stability of the connection between the claw 12 and the movable element 32a, a stabilizing projection 85 is additionally formed on the fastening region 68 of the claw 12. The stabilizing projection 85 is formed near the elastic arm 84 on the front side of the claw 12 facing away from the wheel 1 such that a stabilizing gap 86 is formed between the elastic arm 84 and the stabilizing projection 85. An outer end region 67 of the locking wall 66 is inserted into the stabilizing gap 86 when the claw 12 is fastened to the movable element 32a, as shown in the Fig. 10 is shown.

[0110] In the Fig. In the embodiment shown in Figure 10, the suspension wall 64, in which the suspension opening 70 is formed, and the corresponding suspension projection 80 are located on the side of the wheel holder 2 that faces the wheel 1 in the assembled state. The latching wall 66, in which the latching opening 72 is formed, and the corresponding latching projection 82 are located on the side of the wheel holder 2 facing away from the wheel 1.

[0111] In an alternative embodiment, which is not explicitly shown in the figures, the suspension wall 64, in which the suspension opening 70 is formed, and the corresponding suspension projection 80 are located on the side of the wheel holder 2 facing away from the wheel 1, and the latching wall 66, in which the latching opening 72 is formed, and the corresponding latching projection 82 are located on the side of the wheel holder 2 that faces the wheel 1 in the mounted state.

[0112] To a claw 12, which according to the Fig. 10, the rigid suspension projection 80 is first inserted or suspended from the outside into the suspension opening 70 formed in the suspension wall 64 of the movable element 32a. The claw 12 is aligned relative to the movable element 32a such that the elastic arm 84 with the locking projection 82 is arranged outside the movable element 32a.

[0113] The claw 12 is then, in the Fig. 10 shown illustration clockwise, around the rigid suspension projection 80 arranged in the suspension opening 70, as shown in the Fig. 10 is symbolized by the arrow S1. Due to the pivoting movement S1, the elastic arm 84 with the locking projection 82 is inserted into the cavity 74 formed in the movable element 32a.

[0114] As soon as the locking projection 82 comes into contact with the inner side of the locking wall 66 during the pivoting movement S1, the locking projection 82 is pressed by the locking wall 66 into the interior of the cavity 74. In the process, the elastic arm 84 is elastically deformed. As the pivoting movement S1 continues, the locking projection 82 slides along the inner side of the locking wall 66 until it reaches the position where the locking opening 72 is formed.

[0115] When the engagement projection 82 reaches the engagement opening 72, the engagement projection 82 is pressed into the engagement opening 72 by the elastic force of the elastically deformed elastic arm 84 and engages there. Through the cooperation of the engagement projection 80 inserted into the engagement opening 70 and the engagement projection 82 engaged in the engagement opening 72, the claw is fixed to the movable element 32a.

[0116] During the described pivoting movement S1 of the claw 12, the outer end portion 67 of the locking wall 66 of the movable element 32a is also inserted into the stabilizing gap 86 formed in the fastening portion 68 of the claw 12. This further increases the stability of the mechanical connection between the claw 12 and the movable element 32a.

[0117] In order to release the claw 12 from the movable element 32a, the locking projection 82 is pressed from the outside into the cavity 74 formed in the movable element 32a, as shown in the Fig. 10 is shown by the arrow D. The locking projection 82 is pressed in particular so far into the cavity 74 that the claw 12 can be pivoted in a second pivoting movement S2 counterclockwise around the rigid suspension projection 80 arranged in the suspension opening 70.

[0118] During the second pivoting movement S2, the locking projection 82 slides outwards along the inside of the outer end region 67 of the locking wall 66 (in the illustration of the Fig. 10 to the right) until it reaches the end of the locking wall 66 at the open outer end of the movable element 32a and there exits from the open outer end of the movable element 32a.

[0119] In the course of the described second pivoting movement S2, the outer end region 67 of the locking wall 66 of the movable element 32a also emerges from the stabilizing gap 86 which is formed in the fastening region 68 of the claw 12.

[0120] After the locking projection 82 has emerged from the movable element 32a, the rigid suspension projection 80 can be removed or unhooked from the suspension opening 70 in order to completely separate the claw 12 from the movable element 32a.

[0121] The claw 12 can now be stored separately from the wheel holder 2 and / or replaced with another claw 42. Another claw 42, which is to be attached to the movable element 32a of the wheel holder 2, has a correspondingly designed fastening area 68. The other claw 42 can therefore be attached to and detached from the movable element 32a in the manner described above.

[0122] Another possibility to detachably attach the claw 12 to the movable element 32a is shown schematically in the Fig. 11 shown.

[0123] Also Fig. 11 shows a schematic representation of a section through a claw 12 and an outer end region of a movable element 32a.

[0124] Instead of the Fig. 10 shown elastic arm 84, on which a locking projection 82 is formed, is in the Fig. 11, a rigid arm 94 may be provided which extends from the fastening region 68 of the claw 12 into the cavity 74 formed in the movable element 32.

[0125] A spring-loaded locking element 92, e.g., a spring-loaded cylinder, a spring-loaded ball, or a spring-loaded hemisphere, is provided at a free end 95 of the rigid arm 94, which faces away from the attachment area 68 of the claw 12. The spring-loaded locking element 92 is pressed into the locking opening 72 by an elastic spring 96, which is supported on the rigid arm 94, in order to fix the claw 12 to the movable element 32a.

[0126] In this embodiment, the stabilizing gap 86 is formed between two stabilizing projections 85 which are formed next to the rigid arm 94 on the outer edge of the fastening region 68 of the claw 12.

[0127] The previously described methods for attaching and detaching a claw 12 to the movable element 32a of a wheel holder 2 can be carried out analogously with a claw 12 in which a spring-loaded locking element 92 is provided instead of an elastic arm 84 with a locking projection 82. The spring-loaded locking element 92 assumes the function of the locking projection 82.

[0128] Fig. 12 shows a schematic representation of a section through a claw 12 and an outer end region of a movable element 32a according to a further embodiment.

[0129] In the Fig. In the embodiment shown in Figure 12, a locking opening 72 is provided on both sides of the movable element 32a. The claw 12 is equipped with two opposing spring-loaded locking elements 92 that engage the two locking openings 72.

[0130] In the fastening area 68 of the claw 12, two stabilizing gaps 86 are provided, each formed between two stabilizing projections 85 and designed to receive end areas 63, 67 of the hanging wall 64 and the snap-in wall 66.

[0131] In the Fig. 12, the claw 12 can be released from the movable element 32a by simultaneously pushing the two spring-loaded latching elements 92 out of the two latching openings 72 into the cavity. The claw 12 can then be moved outwards in a linear movement L (in the illustration of Fig. 12 to the right) from the movable element 32a.

[0132] The attachment and detachment of a claw 12 to the wheel holder 2 was described with reference to the Fig. 8 to 12 using the example of a single claw 12 attached to a single movable element 32a.

[0133] The methods for attaching and detaching the claw 12 described as an example for a single claw 12 can also be carried out analogously with the other claws 12, 13, 14, 42, 43, 44 on all movable elements 32a, 33a, 34a of the wheel holder 2.

[0134] Depending on the viewing direction of the claws 12, 13, 14, 42, 43, 44, the pivoting directions S1, S2 of the respective claw 12, 13, 14, 42, 43, 44 can be reversed for attaching and detaching the respective claw 12, 13, 14, 42, 43, 44. This means that, depending on the viewing direction, the claw 12, 13, 14, 42, 43, 44 can be pivoted clockwise or counterclockwise for attachment to the movable element 32a, 33a, 34a. Accordingly, the claw 12, 13, 14, 42, 43, 44 can be pivoted counterclockwise or clockwise to release from the movable element 32a, 33a, 34a.

Claims

[1] Wheel holder (2) for attachment to a wheel (1), in particular to a wheel (1) of a motor vehicle, wherein the wheel holder (2) has at least two arms (22, 23, 24) extending outwards in a common plane from a central housing (10) of the wheel holder (2); wherein each of the arms (22, 23, 24) has at least one movable element (32a, 33a, 34a) which is movable outwards and inwards along the arm (22, 23, 24); wherein a removable claw (12, 13, 14; 42, 43, 44) is mountable on each of the movable elements (32a, 33a, 34a), which claw is designed to contact the tread (7) of a wheel (1) when the wheel holder (2) is mounted on the wheel (1); wherein the wheel holder (2) has at least two sets of claws (12, 13, 14; 42, 43, 44) which are selectively mountable on the movable elements (32a, 33a, 34a); wherein each set of claws (12, 13, 14; 42, 43, 44) comprises at least as many claws (12, 13, 14; 42, 43, 44) as the wheel holder (2) has arms (22, 23, 24), and wherein the claws (12, 13, 14; 42, 43, 44) of different sets of claws (12, 13, 14; 42, 43, 44) are differently designed, so that the wheel holder (2) can be adapted to different sizes of the wheel (1) by selecting a set of claws (12, 13, 14; 42, 43, 44) which are mounted on the movable elements (32a, 33a, 34a); wherein each of the movable elements (32a, 33a, 34a) is formed with a suspension wall (64), with a latching wall (66) opposite the suspension wall (64) and with a cavity (74) which is delimited by the suspension wall (64) and by the latching wall (66), wherein each of the movable elements (32a, 33a, 34a) is formed in particular as a hollow square tube; wherein a hanging opening (70) is formed in the hanging wall (64) and wherein a locking opening (72) is formed in the locking wall (66); wherein each claw (12, 13, 14; 42, 43, 44) is formed with a rigid suspension projection (80) which is intended to be inserted into the suspension opening (70); wherein an elastically mounted latching projection (82) is formed on each claw (12, 13, 14; 42, 43, 44) and is intended to be inserted into the latching opening (72); and wherein the elastically mounted latching projection (82) can be inserted into the latching opening (72) from the cavity (74) formed in the movable element (32a, 33a, 34a). [2] Wheel holder (2) according to claim 1, wherein the elastically mounted latching projection (82) is designed as a spring-loaded latching element (92) which is pressed into the latching opening (72) by an elastic spring (96); wherein the spring-loaded latching element (92) comprises, in particular, a spring-loaded cylinder, a spring-loaded ball or a spring-loaded hemisphere. [3] Wheel holder (2) for attachment to a wheel (1), in particular to a wheel (1) of a motor vehicle, wherein the wheel holder (2) has at least two arms (22, 23, 24) extending outwards in a common plane from a central housing (10) of the wheel holder (2); wherein each of the arms (22, 23, 24) has at least one movable element (32a, 33a, 34a) which is movable outwards and inwards along the arm (22, 23, 24); wherein a removable claw (12, 13, 14; 42, 43, 44) is mountable on each of the movable elements (32a, 33a, 34a), which claw is designed to contact the tread (7) of a wheel (1) when the wheel holder (2) is mounted on the wheel (1); wherein the wheel holder (2) has at least two claws (12, 13, 14; 42, 43, 44) which can be selectively mounted on the movable elements (32a, 33a, 34a); wherein each set of claws (12, 13, 14; 42, 43, 44) comprises at least as many claws (12, 13, 14; 42, 43, 44) as the wheel holder (2) has arms (22, 23, 24), and wherein the claws (12, 13, 14; 42, 43, 44) of different sets of claws (12, 13, 14; 42, 43, 44) are differently designed, so that the wheel holder (2) can be adapted to different sizes of the wheel (1) by selecting a set of claws (12, 13, 14; 42, 43, 44) which are mounted on the movable elements (32a, 33a, 34a); wherein each of the movable elements (32a, 33a, 34a) is formed with a suspension wall (64), with a latching wall (66) opposite the suspension wall (64) and with a cavity (74) which is delimited by the suspension wall (64) and by the latching wall (66), wherein each of the movable elements (32a, 33a, 34a) is formed in particular as a hollow square tube; wherein a hanging opening (70) is formed in the hanging wall (64) and wherein a locking opening (72) is formed in the locking wall (66); wherein each claw (12, 13, 14; 42, 43, 44) is formed with a rigid suspension projection (80) which is intended to be inserted into the suspension opening (70); wherein an elastically mounted latching projection (82) is formed on each claw (12, 13, 14; 42, 43, 44) and is intended to be inserted into the latching opening (72); and wherein the elastically mounted latching projection (82) is designed as a spring-loaded latching element (92) which is pressed into the latching opening (72) by an elastic spring (96); wherein the spring-loaded latching element (92) comprises, in particular, a spring-loaded cylinder, a spring-loaded ball, or a spring-loaded hemisphere. [4] Wheel holder (2) according to claim 2 or 3, wherein the spring-loaded latching element (92) and the elastic spring (96) are arranged on a rigid arm (94) extending from the claw (12, 13, 14; 42, 43, 44) into the cavity (74) formed in the movable element (32a, 33a, 34a). [5] Wheel holder (2) for attachment to a wheel (1), in particular to a wheel (1) of a motor vehicle, wherein the wheel holder (2) has at least two arms (22, 23, 24) extending outwards in a common plane from a central housing (10) of the wheel holder (2); wherein each of the arms (22, 23, 24) has at least one movable element (32a, 33a, 34a) which is movable outwards and inwards along the arm (22, 23, 24); wherein a removable claw (12, 13, 14; 42, 43, 44) is mountable on each of the movable elements (32a, 33a, 34a), which claw is designed to contact the tread (7) of a wheel (1) when the wheel holder (2) is mounted on the wheel (1); wherein the wheel holder (2) has at least two sets of claws (12, 13, 14; 42, 43, 44) which are selectively mountable on the movable elements (32a, 33a, 34a); wherein each set of claws (12, 13, 14; 42, 43, 44) comprises at least as many claws (12, 13, 14; 42, 43, 44) as the wheel holder (2) has arms (22, 23, 24), and wherein the claws (12, 13, 14; 42, 43, 44) of different sets of claws (12, 13, 14; 42, 43, 44) are differently designed, so that the wheel holder (2) can be adapted to different sizes of the wheel (1) by selecting a set of claws (12, 13, 14; 42, 43, 44) which are mounted on the movable elements (32a, 33a, 34a); wherein each of the movable elements (32a, 33a, 34a) is formed with a suspension wall (64), with a locking wall (66) opposite the suspension wall (64), and with a cavity (74) delimited by the suspension wall (64) and the locking wall (66); wherein each of the movable elements (32a, 33a, 34a) is designed in particular as a hollow square tube; wherein a hanging opening (70) is formed in the hanging wall (64) and wherein a locking opening (72) is formed in the locking wall (66); wherein each claw (12, 13, 14; 42, 43, 44) is formed with a rigid suspension projection (80) which is intended to be inserted into the suspension opening (70); wherein an elastically mounted latching projection (82) is formed on each claw (12, 13, 14; 42, 43, 44) and is intended to be inserted into the latching opening (72); and wherein the suspension projection (80) is formed on an inner side of the claw (12, 13, 14; 42, 43, 44) which faces the wheel (1) when the wheel holder (2) is fastened to the wheel (1), and wherein the elastically mounted latching projection (82) is formed on an outer side of the claw (12, 13, 14; 42, 43, 44) opposite the inner side and facing away from the wheel (1) when the wheel holder (2) is fastened to the wheel (1). [6] Wheel holder (2) according to claim 5, wherein the suspension projection (80) can be inserted into the suspension opening (70) from outside the movable element (32a, 33a, 34a); and / or wherein the elastically mounted latching projection (82) can be inserted into the latching opening (72) from the cavity (74) formed in the movable element (32a, 33a, 34a). [7] Wheel holder (2) according to one of claims 1 to 6, wherein the suspension opening (70) and the latching opening (72) are spaced apart from one another along the longitudinal direction of the movable element (32a, 33a, 34a), wherein the suspension opening (70) is formed in particular closer than the latching opening (72) to an outer end of the movable element (32a, 33a, 34a) facing away from the housing (10). [8] Wheel holder (2) for attachment to a wheel (1), in particular to a wheel (1) of a motor vehicle, wherein the wheel holder (2) has at least two arms (22, 23, 24) extending outwards in a common plane from a central housing (10) of the wheel holder (2); wherein each of the arms (22, 23, 24) has at least one movable element (32a, 33a, 34a) which is movable outwards and inwards along the arm (22, 23, 24); wherein a removable claw (12, 13, 14; 42, 43, 44) is mountable on each of the movable elements (32a, 33a, 34a), which claw is designed to contact the tread (7) of a wheel (1) when the wheel holder (2) is mounted on the wheel (1); wherein the wheel holder (2) has at least two sets of claws (12, 13, 14; 42, 43, 44) which are selectively mountable on the movable elements (32a, 33a, 34a); wherein each set of claws (12, 13, 14; 42, 43, 44) comprises at least as many claws (12, 13, 14; 42, 43, 44) as the wheel holder (2) has arms (22, 23, 24), and wherein the claws (12, 13, 14; 42, 43, 44) of different sets of claws (12, 13, 14; 42, 43, 44) are differently designed, so that the wheel holder (2) can be adapted to different sizes of the wheel (1) by selecting a set of claws (12, 13, 14; 42, 43, 44) which are mounted on the movable elements (32a, 33a, 34a); wherein each of the movable elements (32a, 33a, 34a) is formed with a suspension wall (64), with a latching wall (66) opposite the suspension wall (64) and with a cavity (74) which is delimited by the suspension wall (64) and by the latching wall (66), wherein each of the movable elements (32a, 33a, 34a) is formed in particular as a hollow square tube; wherein a hanging opening (70) is formed in the hanging wall (64) and wherein a locking opening (72) is formed in the locking wall (66); wherein each claw (12, 13, 14; 42, 43, 44) is formed with a rigid suspension projection (80) which is intended to be inserted into the suspension opening (70); wherein an elastically mounted latching projection (82) is formed on each claw (12, 13, 14; 42, 43, 44) and is intended to be inserted into the latching opening (72); and wherein the claw (12, 13, 14; 42, 43, 44) additionally has a stabilizing gap (86) delimited by at least one stabilizing projection (85), into which an outer end region (67) of the locking wall (66) is inserted when the claw (12, 13, 14; 42, 43, 44) is fastened to the movable element (32a, 33a, 34a). [9] Wheel holder (2) according to one of claims 5 to 8, wherein the claw (12, 13, 14; 42, 43, 44) has an elastic arm (84) having a fixed end connected to the claw (12, 13, 14; 42, 43, 44) and an opposite free end (83), and wherein the elastically mounted locking projection (82) is formed on the free end (83) of the elastic arm (84). [10] Wheel holder (2) according to one of claims 5 to 9, wherein the suspension projection (80) is formed on an inner side of the claw (12, 13, 14; 42, 43, 44) which faces the wheel (1) when the wheel holder (2) is fastened to the wheel (1), and wherein the elastically mounted locking projection (82) is formed on an outer side of the claw (12, 13, 14; 42, 43, 44) opposite the inner side and facing away from the wheel (1) when the wheel holder (2) is fastened to the wheel (1). [11] Wheel holder (2) for attachment to a wheel (1), in particular to a wheel (1) of a motor vehicle, wherein the wheel holder (2) has at least two arms (22, 23, 24) extending outwards in a common plane from a central housing (10) of the wheel holder (2); wherein each of the arms (22, 23, 24) has at least one movable element (32a, 33a, 34a) which is movable outwards and inwards along the arm (22, 23, 24); wherein a removable claw (12, 13, 14; 42, 43, 44) is mountable on each of the movable elements (32a, 33a, 34a), which claw is designed to contact the tread (7) of a wheel (1) when the wheel holder (2) is mounted on the wheel (1); wherein the wheel holder (2) has at least two sets of claws (12, 13, 14; 42, 43, 44) which are selectively mountable on the movable elements (32a, 33a, 34a); wherein each set of claws (12, 13, 14; 42, 43, 44) comprises at least as many claws (12, 13, 14; 42, 43, 44) as the wheel holder (2) has arms (22, 23, 24), and wherein the claws (12, 13, 14; 42, 43, 44) of different sets of claws (12, 13, 14; 42, 43, 44) are differently designed, so that the wheel holder (2) can be adapted to different sizes of the wheel (1) by selecting a set of claws (12, 13, 14; 42, 43, 44) which are mounted on the movable elements (32a, 33a, 34a); wherein at least one bore is formed in at least one claw (12, 13, 14; 42, 43, 44) and in at least one movable element (32a, 33a, 34a), wherein the at least one claw (12, 13, 14; 42, 43, 44) is fastened to the at least one movable element (32a, 33a, 34a) by at least one fastening element (62) which is guided through at least two of the bores; wherein the at least one fastening element (62) is designed in particular as a cylindrical pin; and wherein at least one of the bores is designed as a threaded bore and wherein the at least one fastening element (62) is designed as a threaded bolt or as a screw. [12] Wheel holder (2) according to one of the preceding claims, wherein each of the claws (12, 13, 14; 42, 43, 44) has a first leg (12a, 13a, 14a; 42a, 43a, 44a) and a second leg (12b, 13b, 14b; 42b, 43b, 44b) which are aligned at an angle, in particular at a substantially right angle, to one another, wherein the first leg (12a, 13a, 14a; 42a, 43a, 44a) extends substantially in the direction of one of the arms (22, 23, 24) of the wheel holder (2) when the claw (12, 13, 14; 42, 43, 44) is on one of the movable elements (32a, 33a, 34a), and wherein the second leg (12b, 13b, 14b; 42b, 43b, 44b) extends substantially along a running surface (7) of the wheel (1) when the wheel holder (2) is mounted on the wheel (1). [13] Wheel holder (2) according to claim 12, wherein the second leg (12b, 13b, 14b; 42b, 43b, 44b) has at least one toothed region (60) designed to contact the running surface (7) of the wheel (1) when the wheel holder (2) is mounted on the wheel (1); and / or wherein the claws (42, 43, 44) each have a spacer (52, 53, 54) extending inwardly from the respective claw (42, 43, 44). [14] Wheel holder (2) according to claim 12 or 13, wherein the first legs (12a, 13a, 14a; 42a, 43a, 44a) of all claws (12, 13, 14; 42, 43, 44) of a set of claws (12, 13, 14; 42, 43, 44) have the same length and / or wherein the second legs (12b, 13b, 14b; 42b, 43b, 44b) of all claws (12, 13, 14; 42, 43, 44) of a set of claws (12, 13, 14; 42, 43, 44) have the same length. [15] Wheel holder (2) according to one of claims 12 to 14, wherein the first legs (12a, 13a, 14a; 42a, 43a, 44a) of claws (12, 13, 14; 42, 43, 44) belonging to different sets of claws (12, 13, 14; 42, 43, 44) have different lengths, and / or wherein the second legs (12b, 13b, 14b; 42b, 43b, 44b) of claws (12, 13, 14; 42, 43, 44) belonging to different sets of claws (12, 13, 14; 42, 43, 44) have different lengths. [16] Method of attaching a claw (12, 13, 14; 42, 43, 44) to a movable element (32a, 33a, 34a) of a wheel holder (2) according to one of claims 1 to 10, the method comprising: inserting the rigid suspension projection (80) formed on the claw (12, 13, 14; 42, 43, 44) into the suspension opening (70) formed in the suspension wall (64) of the movable element (32a, 33a, 34a) of the wheel holder (2); to pivot the claw (12, 13, 14; 42, 43, 44) about the rigid suspension projection (80) in the direction of the engagement wall (66) of the movable element (32a, 33a, 34a) and to insert the elastically mounted engagement projection (82) formed on the claw (12, 13, 14; 42, 43, 44) into a cavity (74) formed in the movable element (32a, 33a, 34a) and from the cavity (74) into the engagement opening (72) formed in the engagement wall (66) of the movable element (32a, 33a, 34a). [17] Method of releasing a claw (12, 13, 14; 42, 43, 44) from a movable element (32a, 33a, 34a) of a wheel holder (2) according to one of claims 1 to 10, the method comprising: to press the elastically mounted latching projection (82) from the outside through the latching opening (72) into the cavity (74) formed in the movable element (32a, 33a, 34a); to pivot the claw (12, 13, 14; 42, 43, 44) around the rigid suspension projection (80) which is suspended in the suspension opening (70) away from the engagement wall (66) until the elastically mounted engagement projection (82) has emerged from the cavity (74) through an open end of the movable element (32a, 33a, 34a); and remove the rigid suspension projection (80) from the suspension opening (70). [18] Method of attaching a claw (12, 13, 14; 42, 43, 44) to a movable element (32a, 33a, 34a) of a wheel holder (2) according to claim 11, the method comprising: inserting a first leg (12a, 13a, 14a; 42a, 43a, 44a) of the claw (12, 13, 14; 42, 43, 44) into a cavity (74) formed in the movable element (32a, 33a, 34a); to guide at least one fastening element (62) through bores formed in the first leg (12a, 13a, 14a; 42a, 43a, 44a) and in the movable element (32a, 33a, 34a) in order to attach the claw (12, 13, 14; 42, 43, 44) to the movable element (32a, 33a, 34a); wherein the method comprises in particular screwing the at least one fastening element (62) with nuts or with at least one bore which is designed as a threaded bore. [19] Method of attaching a wheel holder (2) according to one of claims 1 to 15 to a wheel (1), the method comprising selecting a set of claws (12, 13, 14; 42, 43, 44) suitable for the wheel (1) from at least two different sets of claws (12, 13, 14; 42, 43, 44); attaching the claws (12, 13, 14; 42, 43, 44) of the selected set to the movable elements (32a, 33a, 34a) of the arms (22, 23, 24); and securing the wheel holder (2) to the wheel (1) by means of the claws (12, 13, 14; 42, 43, 44) mounted on the movable elements (32a, 33a, 34a). [20] A method according to claim 19, wherein the method comprises attaching the claws (12, 13, 14; 42, 43, 44) to the wheel holder (2) in a method according to any one of claims 16 or 18.

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