WO2014044237A1

WO2014044237A1 - Wheel rim having a wheel disc made of a fibre composite and having fastening means

Info

Publication number: WO2014044237A1
Application number: PCT/DE2012/100367
Authority: WO
Inventors: Werner Hufenbach; Martin Lepper; Jens Werner; Christian KÖHLER
Original assignee: ThyssenKrupp Carbon Components GmbH
Priority date: 2012-09-24
Filing date: 2012-12-03
Publication date: 2014-03-27
Also published as: CN104640715A; CN104640715B

Abstract

The invention relates to a wheel rim having a wheel disk (3) made of a fibre composite and having fastening means for fastening the wheel disk (3) to a wheel hub (5) of a vehicle, wherein the wheel disk (3) has at least one opening (8) for receiving the wheel hub (5) and the opening (8) is designed to have a conical centring surface (9) for the corresponding seat of a fastening means. According to the invention the reinforcing fibres of the fibre composite are arranged in planar layers (10) and at least a part of the fibre layers (10) is arranged in an edge region (12) of the opening (8) perpendicular to the centring surface (9) of the wheel disc (3).

Description

Wheel rim with a wheel disc made of fiber composite material and

fasteners

The invention relates to a wheel rim with a wheel disc made of a fiber composite material and with fastening means for fastening the wheel disc to a wheel hub of a vehicle, wherein the wheel disc has at least one opening for receiving the wheel hub and the opening formed with a conical centering ^¬ surface for the seat of a fastener is.

Wheel discs made of a fiber composite material are beispielswei ^¬ se from the document DE 1939910 A known. The document discloses a method for the production of impellers made FA server reinforced plastics for motor vehicles, in which high in egg ^¬ nem area voltages of the wheel or wheel disc reinforcing fibers according to the course of the stresses occurring circular and positioned radially to the wheel axle ^¬ the. To increase the strength, additional fiber inserts are arranged one above the other in this area. The opening for the wheel hub and the seat of the wheel hub or a fastening ^¬ supply means are not described in detail. From the figures, an arched outward edge region of the opening is ersicht ^¬ Lich, wherein the wheel disc is flush with a side facing in direction of the axletree edge surface. It is therefore to be expected that the edges of the opening, ie in the area of highest stresses, running fiber layers are stressed by the loads introduced there primarily to bending, resulting in a significant weakening of Faserverbundstruk ^¬ ture in this area and can form a starting point for a delamination of the fiber layers.

From the document DE 101 45 630 Al a wheel disc or a wheel star made of fiber composite material is known, wherein the Fa ^¬ sern are arranged in the Radstern mostly in the radial direction. In addition, the wheel center may contain radially or circumferentially oriented fabrics or layers of endless fiber ^strands . In the center of the wheel center, the wheel center can be firmly connected to an inserted wheel hub. The formation of the opening for receiving the wheel hub is not described in detail ^¬ . From the drawing, a flat edge region of the opening can be seen, wherein the wheel disc terminates with a perpendicular to the wheel axis facing edge surface, which serves as a seat for the cylindrical stub of the wheel hub. A contact surface of the wheel hub indicates that the connection to the wheel disc by means of a fastening means ^¬ overall by clamping takes place gen the flat edge region of the opening of the wheel disc. By the biasing forces generated thereby, the fibers of the fabric or scrim of the wheel disc are pressed together, whereby the fiber composite structure is significantly weakened in this area. From the document DE 689 22 982 T2 a vehicle wheel made of fiber-reinforced composite material is known which comprises a wheel rim with a wheel disc. The wheel disc has a record for the attachment of the wheel to a wheel hub, a central Befestigungsöff ^¬ voltage for receiving the wheel hub and a plurality of concen--located around the axle mounting apertures, the threaded fastening elements for fastening the wheel disc on the wheel hub. The screwing of the bolts takes place in the axial direction. For the perfect fit of the fasteners (bolts) is in every festigungs opening provided in the manner of a cut bevel a conical seat surface. The reinforcing fibers of the wheel disc are preferably arranged in planes perpendicular to the wheel axis and terminate in the attachment openings, ie the fiber path is interrupted there.

The disadvantage is that the wall cross-section of the wheel disc is tapered by the design of the Befestigungsöff ^¬ calculations and since ^¬ weakened with the fiber composite structure of the wheel just in hochbe ^¬ claimed area of the connection to the wheel hub of the vehicle.

In addition, when the preload forces are introduced into the wheel disc, the fiber layers are pressed together, whereby the fiber composite structure is also weakened.

A device of the generic type is known from the publication DE 196 08 601 AI. Is a rim with egg ^¬ ner wheel disc is described of fiber reinforced plastic, wherein the wheel disc has a central opening and is connected by means of a central lock to the wheel hub or a mounting body of the wheel hub. The fastening body is connected to the Radach ^¬ se by means of a plurality of bolts. The central opening of the wheel disc has a ko ^¬ African centering in the direction of the mounting body for centering the wheel disc on the mounting body. The central opening also has a conical centering surface in the direction of the central nut, to ensure the centric seat of the central nut and the intermediate pressure ring.

Although the conical centering surfaces provide an increased area for the introduction of the clamping forces available to all ^¬ recently executes the design also means that the wall thickness of the wheel disc diminished especially in high stress area and thus the strength of the fiber composite material is weakened. In addition, this fastening solution requires a high manufacturing and assembly costs.

The invention has for its object to provide a wheel rim, which overcomes the above-mentioned disadvantages of the prior art, in particular the task da ^¬ rin to improve the durability of the wheel connection and to minimize ^¬ equal to their manufacturing and assembly costs.

The object is achieved so that the Ver ^¬ reinforcing fibers of the fiber composite material are arranged in serlagen area FA and at least part of Faserla ^¬ gene is located in an edge region of the opening of the disc perpendicular to the centering of the wheel disc.

The invention makes use of the properties of reinforced fiber composite structures endlosfaserver ^¬ advantage that nen in several different levels or layers have fiber layers arranged. The Fa ^¬ serlagen are essentially two-dimensional textile fabric or scrim of fiber strands of continuous fibers (rovings). The fiber strands contain reinforcing fibers such as carbon ^¬ fibers, glass fibers or aramid fibers. According to the invention some or all fiber layers are arranged in the edge region of the opening perpendicular to the centering surface, thus are also the planes in which the reinforcing fibers extend in the Randbe ^¬ rich opening perpendicular to this centering. Since the conical centering surface is always inclined at an angle deviating from the right angle relative to the wheel axis, the fiber layers or the planes of the reinforcing ^fibers are thus also not arranged perpendicular to the wheel axis in the edge region of the opening. The reinforcing fibers run in the edge region of the opening at an angle to the wheel axis and end bluntly in the centering surface.

The edge region of the opening is the area of the wheel disc, which is particularly highly stressed by the direct and indirect engagement of its mountings ^¬ restriction means. The invention assumes that the mechanical Resilient ^¬ ness of continuous fiber reinforced composite fiber material in Rich ^¬ tung an imaginary surface normal of the fiber layer and thus transverse to the fiber direction of the reinforcing fibers are distinctly lower than perpendicular to this surface normal. The axially acting in the wheel mounting in the edge region Be ^¬ biasing force of the fastening means is indeed plane-parallel, initiated through the centering in the Radschei ^¬ be, and in the planes of the reinforcing Fa ^¬ serlagen and preferably in the fiber direction of the fibers Verstärkungsfa-.

The power flow path in this case runs from the fastening means on the centering surface in the direction of the reinforcing fibers and di ^¬ rectly into the reinforcing fibers into it. Thus, a fiber ^¬ just force is made possible in the fiber composite structure, which provides a compression of the fiber composite material in the actual preferred direction of the load capacity. As a result, a significantly higher durability of the wheel connection is realized with low constructive means.

The solution according to the invention is applicable both in the case of a wheel connection by means of a central closure, and also in the case of a wheel connection by means of a classic bolted-on bolted connection.

Advantageous embodiments and further developments of the invention will become apparent from the dependent claims 2 to 15, which after ^¬ description and the accompanying drawings show. In a preferred embodiment, the conical centering surface extends completely over the wall cross section of the wheel ^¬ disc. Thus, the force can be introduced from the fastener over the entire wall thickness and in all, ending at the opening reinforcing fibers. This results in a particularly favorable force distribution.

The fiber layers of the fiber composite material are preferably arranged substantially parallel to the wheel ^{contour of} the wheel disk. Thus, the introduced by the tension of the fastening means in the fiber layers force can be derived in the steady course in the radially extended peripheral portion of the wheel disc, whereby voltage spikes are avoided. In an advantageous embodiment at least includes a buildin ^¬ actuating medium on a seat surface formed congruent to the centering of the wheel disc. Characterized in that the voltage applied to the centering seat fully ^¬ continuously covers the centering surface, the biasing forces uniformly distributed over the entire centering surface and thus the DEMANDS ^¬ monitoring of the individual fiber layers of the fiber composite structure are ge ^¬ reduces.

If the edge area of the opening has a metallic insert, the wheel disc is additionally reinforced in the area under high stress around the opening. Mechanical stress and Ver ^¬ schleißerscheinungen be reduced so the Radschei ^¬ be such as occur, for example, by repeated and wheel assembly by tightening the fastening means, Kings ^¬ nen to the fiber composite structure. Similarly, by the insert of the Schwingreibverschleiß gemin ^¬ changed, which results from the relative movements while driving.

Preferably, the insert is arranged such that it encloses the edge region of the opening of the wheel disc. Thus, the outer surfaces of the edge region of the opening and in particular the centering surface are protected against mounting stress and wear. The insert also facilitates centering ^¬ turing the wheel rim to the wheel hub. The metallic Ummante- ment through the insert causes a favorable distribution of the biasing force on the edge region and the centering surface. For the production of the wheel disc, it is particularly advantageous if the insert is formed in two parts. The division allows subsequent installation of the insert following the consolidation process of the wheel disc. In a preferred embodiment, the wheel disc on the vehicle side a contact surface for abutment against a support surface of the wheel hub or connected to the hub mounting ^¬ means, wherein the support surface is positively formed corresponding to the bearing surface. The support surface of the wheel hub or wheel hub side fastener provides the counter-force member in the fastening of the wheel disc on the wheel hub. The bearing surface may be any, preferably have a front ^¬ to the fiber layers formed parallel contour. In this case, the contour of the contact surface is in

Edge region of the opening of the wheel disc curved or at least formed at an uneven angle to the wheel axle. By a form-fit to the contact surface configuration of the support surface, the biasing force can radnabenseit ig are introduced via a largest possible area in the wheel disc during assembly, which reduces the stress on the fiber-composite structure in this Be ^¬ rich.

Although the vehicle-side introduction of the axial preload force on the support surface causes a certain compression of the fiber layers of the fiber composite material of the wheel disc transversely to the Fa ^¬ serrichtung. However, this compression takes place due to the matching size and shape of the support surface with a ^¬ special large load distribution with low surface load.

The vehicle-side abutment surface is arranged in the edge region of the opening of the wheel disc particularly advantageous where kor ^¬ respondierende support surface just the fiber layers in their environmental steering based on the actual radial orientation in the angled to the wheel axle alignment.

In a further embodiment of the invention, the wheel disc on the outside a contact surface and a fastening ^¬ medium on a form-fitting corresponding with the outside contact surface support surface. Thus, the wheel disc is additionally covered laterally by a fastening means.

This will result in an isostatic voltage generates state that prevents evasion of the fiber composite structure of the wheel disc and thus increases the local strength of the wheel disc.

Preferably, the outer-side contact surface is arranged in the edge region of the opening, where the additional guidance by the corresponding support surface of the fastening means FITS ^¬ the high-load area of the wheel connection of Radschei ^¬ be strengthened.

Advantageously, the insert provided in the edge region of the opening is arranged over the contact surface (s).

The insert can be arranged extending over a contact surface or several Anlageflä ^¬ surfaces of the wheel disc, namely on the vehicle-side contact surface or on the outside contact surface or on both contact surfaces. So NEN wear kön- be effectively reduced, and the application of force to be improved in the wheel disc in the area of contact of the wheel with the supporting surface of the wheel hub or wheel hub side Be ^¬ fixing means or with the support surface of counteract ^¬ the outer fastener. In a particularly advantageous embodiment of the voltage Publ ^¬ a second edge portion having a second conical

Centering formed, wherein a part of the fiber layers of the fiber composite material of the wheel disc in the second edge region of the opening and perpendicular to the second centering surface is arranged net. The fiber layers are divided on the two edge regions of the opening and ends perpendicular to the respective

Centering. As a result, the fiber-friendly introduction of the preload force of the Radverschraubung load distribution in all fiber layers done. The second centering surface of the abgespreiz- th edge portion may be applied to a conical seating surface of the wheel ^¬ hub or on a conical seat surface of a gegenkraftbewir ^¬ kenden fastening means, whereby a comparison squeeze the fiber layers of the disc can be avoided entirely to the fiber direction transversely. Since at the centering result of better load capacity of the fiber layers, a higher surface pressure is possible, the conical seat surface may be considerably ^¬ he made smaller than the support surface, which is needed for pressing against the outer bearing surface of the wheel disc.

Can also the wheel disc sti be ^¬ figkeitssprünge in the wheel disc, in this connection form avoided, the squeeze in the encryption of the fastening means at a to the wheel disc pa ^¬ rallelen contact surface, especially in the transition from the Appendices ^¬ gefläche to the outer circumference portion of the disc may occur.

If a support element is arranged in a gusset space which forms between the edge ^regions , the wheel disk is particularly reinforced at this point. The support member stable ^¬ lisiert the highly stressed portion of the disc against the prevailing at the wheel connection static and dynamic loads. Preferably, the support element is a, the Zwi ^¬ ckelraum completely filling, circumferentially profiled annular body of a solid material. For an isostatic stress state is generated in this Be ^¬ rich, resulting in very high loads can be transferred.

In a particularly advantageous embodiment of the invention, the fastening means is ^{ausgebil ¬} det as an adapter disc, which has a seat surface for the seat on the centering of the central opening of the wheel disc and a plurality of concentrically ^¬ arranged openings for receiving Befestigungsbol ^¬ zen. This embodiment allows a proper OF INVENTION ^¬ dung wheel disc, which is provided with a central opening, to be fastened by Lochkreisverschraubung on a wheel hub ^¬ with a hole circle.

If the adapter disc is formed in such a way that they can be arranged on a centering collar of the wheel hub or composites ^¬ NEN with the wheel hub mounting means, this facilitates the accurately fitting assembly and installation of the wheel rim with the buildin ^¬ actuating means on the wheel hub.

The inventive device is explained in detail with reference to several exporting ^¬ approximately examples. In a schematic representation:

Fig. 1 is a fragmentary sectional view of a means

Central lock attached to a wheel hub wheel ^¬ rim

2 is a detail sectional view of the attached wheel rim of FIG. 1 with an insert,

3 is a detail sectional view of the fixed wheel rim according to FIG. 1 with an alternative tensioning pulley, FIG.

4 shows a detail ^sectional view of a wheel rim fastened to a wheel hub by means of a central ^closure according to a second exemplary embodiment,

5 shows a detail sectional view of a wheel rim fastened to a wheel hub by means of a pitch circle lock according to a third exemplary embodiment.

In Fig. 1 a wheel rim 1 of the invention is provided with a FEL- genbett 2 and a wheel disc 3 of kohlenstofffaserverstärk ^¬ reinforced plastic shown in an up to a wheel axle 4 reaching partial section. For the sake of simplicity, the overall sectional representation of the wheel rim 1 is dispensed with. The wheel rim ^¬ 1 is in the assembled state engages with a schematically illustrated wheel hub 5 of a Kraftfahrzeu ^¬ sat. The hub connection of the wheel rim 1 is designed as a cen- ralverschraubung which uses a wheel nut 6 with screw thread and an annular clamping disc 7 as Be ^¬ fastening means.

The wheel disc 3 has a central opening 8, in which the wheel hub 5 is seated in the assembled state. The centric opening 8 has a conical centering surface 9 which is inclined to the wheel axle 4 and extends over the entire wall cross section of the wheel disc 3.

The carbon fiber reinforced plastic used for the wheel rim 1 contains flat-processed fiber layers 10, are incorporated in the continuous reinforcing fibers. The fiber layers are arranged in the radial extent of the wheel disc 3 and parallel to the wheel contour 11 of the wheel disk 3, as can be seen from the illustrated progression lines of the fiber layers 10 in the wall cross-section of the wheel disk 3. The Verlaufsli ^¬ nien indicate schematically the cutting edges of the individual fiber layers 10 on ^¬. The fiber layers 10 are at the central opening

8 broken. In a peripheral region 12 around the central Publ ^¬ voltage 8, the disc 11 is clearly curved contour trained det. The fiber layers 10 with the reinforcing fibers follow the

Deflection of the disk contour 11 of a largely Radia ^¬ len alignment in the outer region of the wheel disc 3 in an inclined direction to the wheel axis alignment in the edge region 12 of the centri ^¬ 's opening 8. At the centering 9 of the wheel disc 3, the fiber layers 10 in a vertical arrangement to the ^¬ ser. All ends of the reinforcing fibers of the fiber layers 10, which are broken in the opening 8, lie in parallel ^¬ len, the centering 9 rectangular planes.

At this centering surface 9 is in the mounted state, the annular clamping disk 7 with its corresponding koni ^¬ rule seat surface 13 flush. The prestressing force applied by the wheel nut 6 and the tensioning disk 7 in the direction of the wheel axle 4 is introduced into the wheel disk 3 via the centering surface 9 in the fiber direction and thus in the preferred direction of highest mechanical loadability of the fiber layers 10.

The seat 13 of the clamping disk 7 covers the centering surface

9 and slightly surpasses them. This ensures even when occurring ^¬ dimensional tolerances that the seat surface 13, the centering 9 of the wheel disc 3 is always completely covered and the biasing force is applied uniformly over the entire centering ^¬ surface 9 and in each of the fiber layers 10 degrees.

In the area of the curved disc contour 11, the wheel ^¬ disc 3 inside a circumferentially convex shaped surface-surface, which during assembly of the wheel rim 1 and clamping of the disc 3 as a vehicle-side abutment surface 14 for Appendices ^¬ ge to a corresponding, circumferential concave-shaped support ^¬ surface 15 of the hub 5 is used. For short Kraftfluss ^¬ paths of the axially introduced preload force can be realized. Fig. 2 shows the attached to the same hub 5 wheel rim 1 of FIG. 1 in an enlarged detail view. In the lower ^{¬ difference} to the wheel rim 1 of FIG. 1, the central opening 8 of the wheel disc 3 is provided with a metallic insert 16. The insert 16 forms a peripheral skirt of the opening 8 and extends on the outside of the wheel disc 3, on the centering surface 9 and on the inside of the wheel disc 3, where it covers the vehicle-side contact surface 14. In the ^¬ sert 16 protects the opening 8 from mechanical stress in repeated assembly and disassembly, distributes the initiate tend biasing force and reduces fretting between the clamping plate 7 and of the wheel 3 and between the wheel hub 5 and the wheel disc. 3

In Fig. 3 attached to the wheel hub 5 wheel rim 1 of FIG. 1 is shown in a further detailed view. In contrast to the wheel rim 1 according to FIG. 1, the wheel disc is fastened to the wheel hub 5 with an alternative tensioning disk 7 ^x . The clamping plate 7 ^x has, in addition the seat 13 ^x has a flange with a circumferentially convex-shaped supporting surface 17th This is designed so that it corresponds during assembly with an outer soapy contact surface 18 of the wheel disc 3, which extends on the circumferential, concave outer surface of the edge region 12 of the opening 8. The support surface 17 may also be completely over the outer surface in an alternative Gestal ^¬ tion of the flange, not shown of the edge region 12 extend. When attaching the wheel ^¬ disc 3 to the hub 5 by means of the clamping disc 7 ^x is formed by the support surface 15 of the hub 5, the seat 13 ^x and support surface 17 of the clamping plate 7 a three-sided guidance of the edge region 12 of the wheel disc 3, so that a

Dodge the structure of the wheel disc 3 is prevented. As an isostatic stress state to increase the strength of the wheel 3 is achieved in the ^¬ with Anbindezone.

FIG. 4 shows a detail of a wheel rim 1 ^x according to the invention and its attachment to a wheel hub 5 ^x by means of a central closure according to a second exemplary embodiment. Below, only the differences from the embodiment of FIG. 1 will be described. The difference ^¬ features are in the detailed representation of Fig. 4 ersicht- lent, which is why a complete sectional view of the

Wheel rim was omitted 1 ^x . With regard to the wiederho ^¬ sirloin, matching features and components, reference is made to the description of the exemplary embodiment of FIG. 1.

The wheel disc 3 ^x of FIG. 4 has at its central Öff- voltage 8 ^x a second edge portion 12.2 with a second rule koni ^¬ centering on 9.2. The wheel disc 3 ^x is spread around the opening 8 ^x around in two edge regions 12.1, 12.2. The two centering 9.1, 9.2 of the wheel disc 3 ^x are arranged opposite each other and mirrored each other. The fiber layers 10 of the wheel disc is divided into the edge preparation ^¬ surfaces 12.1 and 12.2 and in turn perpendicular to each end ^¬ weiligen centering 9.1, 9.2.

In an embodiment not shown, the two edge regions 12.1, 12.2 are generated by dividing the total number of fiber layers 10, wherein the total

Wall cross-section of the wheel disc 3 ^x proportionately on the Wandquer ^¬ sections of the edge regions 12.1, 12.2 divides. The number of fiber layers 10 remains in the transition from edge region 12.1, 12.2 to the outer circumference of the wheel disc 3 ^x equal. In the embodiment shown in FIG. 4 configuration, the design is varied to the effect that in the edge regions 12.1 are provided 12.2 to ^¬ additional layers of fiber 10 extending from the approach of the edge portions 12.1, 12.2 to the centering surfaces 9.1, 9.2. The additional fiber layers 10 expand the wall cross sections of the edge regions 12.1, 12.2 and enlarge the centering surfaces 9.1, 9.2. This causes a further load ^¬ distribution in the centering 9.1, 9.2 and a targeted higher strength of the wheel disc 3 in the edge regions 12.1, 12.2.

Between the edge regions 12.1, 12.2, a gusset space 19 is formed, in which a metallic, wedge-shaped profiled support ring 20 is fitted in a form-fitting manner. This support ring 20 increases the stability of the wheel disc 3 in the highly stressed region of the central closure of the wheel rim 1 ^x with the Radna ^¬ be 5 \

Corresponding to the second centering 9.2, the wheel ^¬ hub 5 ^{x has} a circumferentially conical seat 21. In the manufacture of the Radverschraubung the seat 13 of the clamping plate 7 is pressed against the first centering 9.1, while the second centering surface 9.2 applies to the gen ^¬ acting conical seat 21 of the wheel hub 5 ^x .

Thereby, the axial tightening force of the nut 6 can be gleichmä ^¬ SSIG and transmitted in the preferred direction of the load on all Faserla- gen 10th

Fig. 5 shows a section of a wheel rim 1 of the invention and their ^xx hub attachment according to a third exporting ^¬ approximately example. The connection of the wheel rim 1 takes place here by a screw connection to a wheel hub 5 ^xx with bolt circle. The following description is limited to the Erläute ^¬ tion of the differences from the embodiment of FIG. 1, which can be seen in the detail view of FIG. 5. With regard to the repetitive, coincidental features of male and components will be made to the description of the embodiment ^¬ example of FIG. 1.

The wheel rim 1 according to FIG. 5 has, analogously to the wheel rim 1 according to FIG. 1, a wheel disk 3 ^xx made of carbon fiber reinforced plastic with a central opening 8 ^xx for receiving the wheel hub 5 ^xx shown schematically. As fastening means ^¬ an adapter plate 22 is provided instead of the annular clamping plate 7. On the adapter plate 22 ei ^¬ ne conical seat 23 for the precise fit on the conical centering 9 of the central opening 8 is ^¬ forms. On the centering 9 run the fiber layers 10 of the wheel disc 3 ^xx perpendicular. Over the circumference of the adapter ^¬ disc 22 is a bolt circle having a plurality, for example, 4 openings 24 formed in a concentric arrangement. A similar bolt circle with the same number and arrangement of threaded holes 25, the wheel hub 5 ^xx on. The wheel hub 5 ^xx also has a centering collar 26 for the accurate application of the adapter plate 22nd

To mount the wheel rim 1 ^xx on the wheel hub 5 ^xx , the wheel disc 3 ^{xx is} aligned with the centering collar 26 by means of the adapter disk 22. With conventional studs 27 which are ge ^¬ through the passages through ^¬ 24 of the adapter plate 22 into the threaded holes 25, the wheel rim 1 is ^xx to the wheel hub 5 ^xx ver ^¬ screwed to the abutment surface 14 ^xx of the wheel disc 3 ^xx on the concave support surface 15 ^{, Λ} the wheel hub 5 ^xx is applied. The axial biasing force of the wheel bolt 27 is also here on short

Kraftflussweg and mainly in the fiber direction in the fiber ^{¬ layers} 10 introduced.

With the help of the adapter disc 22, a wheel rim 1 according to the invention, 1 1 with a central opening 8 8 8 ^¬ optionally, also to a wheel hub 5 ^xx with Lochkreisverschraubung mon ^¬ advantage be. Radfelge

rim

wheel disc

wheel axle

wheel hub

Fastener, wheel nut

Fastening means, clamping disc

centric opening of the wheel disc

conical centering surface, first 9.1, second 9.2 fiber layer

disc contour

Edge area of the opening, first 12.1, second 12.2 seat area of the clamping disc

vehicle-side contact surface of the wheel disc concave support surface of the wheel hub

insert

convex support surface of the clamping disc

Outer contact surface of the wheel disc

Zwickel room

Support element, support ring

conical seat of the wheel hub

Fastening means, adapter disc

Seat of the adapter disc

Opening, passage of the adapter disc

Threaded hole of the wheel rim

spigot

Mounting bolts, wheel bolts

Claims

claims

1. Radfelge with a wheel disc (3) made of a fiber composite ^¬ material and with fastening means for fastening the wheel disc (3) on a wheel hub (5) of a vehicle, wherein the wheel disc (3) at least one opening (8) for receiving the wheel hub ( 5) and the opening (8) is formed with a ko ^¬ African centering surface (9) for the corresponding seat of a fastener, characterized marked ^¬ characterized in that the reinforcing fibers of the fiber composite material ^¬ in flat fiber layers (10) are arranged and at least one Part of the fiber layers (10) in a Randbe ^¬ rich (12) of the opening (8) perpendicular to the centering surface (9) of the wheel disc (3) is arranged.

2. Wheel rim according to claim 1, characterized in that the conical centering surface (9) completely over the Wandquer ^{¬ section of} the wheel disc (3) extends formed.

3. Wheel rim according to claim 1 or 2, characterized in that the fiber layers (10) of the fiber composite material in We ^¬ sentlichen parallel to the disk contour (11) of the wheel disc (3) are arranged.

4. Wheel rim according to one of claims 1 to 3, characterized marked ^¬ characterized in that at least one fastening means (7, 22) has a seat surface (13, 23) which is formed congruent to the centering surface (9) of the wheel disc (3).

5. Wheel rim according to one of the preceding claims, characterized ge ^¬ indicates that the edge region (12) of the opening (8) has a metallic insert (16).

6. wheel rim according to claim 5, characterized in that the insert (16) the edge region (12) of the opening (8) is arranged umschlie ^¬ ßend.

7. Wheel rim according to claim 5 or 6, characterized in that the insert (16) is formed in two parts.

8. Wheel rim according to one of the preceding claims, characterized ge ^¬ indicates that the vehicle wheel side a contact surface (14) for abutment against a support surface (15) of the wheel hub (5) or one of the wheel hub (5) Be ^¬ having fastening means, wherein the support surface (15) form-fitting corresponding to the contact surface (14) is out ^¬ forms.

9. Wheel rim according to one of the preceding claims, characterized ge ^¬ indicates that the outside of the wheel disc (3) ^{¬ a} bearing surface (18) and a fastening means (7) with the outside contact surface (18) positively korrespondie ^¬- saving support surface (17) having.

10. Wheel rim according to one of claims 5 to 9, characterized marked ^¬ characterized in that the insert (16) via the contact surface (s) (14, 18) extends arranged.

11. Wheel rim according to one of the preceding claims, characterized ge ^¬ indicates that at the opening (8) a second Randbe ^¬ rich (12.2) with a second conical centering surface (9.2) is formed, wherein a part of the fiber layers (10) of the fiber composite material of the wheel disc (3) in the second edge region (12.2) and perpendicular to the second centering surface (9.2) is arranged.

12. Wheel rim according to claim 11, characterized in that the second conical centering surface (9.2) for the korrespondie ^¬ ing seat of the wheel hub (5) is formed.

13. Wheel rim according to claim 12, characterized in that in a gusset space (19) which is formed between the edge regions (12.1, 12.2), a support element (20) is arranged.

14. Wheel rim according to one of the preceding claims, characterized ge ^¬ indicates that the fastening means (22) is designed as an adapter disc, which has a seat surface (23) for the seat on the centering surface (9) of the centric Öff ^¬ tion (8) Having wheel disc (3) and a plurality of concentric ^¬ arranged openings (24) for receiving fastening bolts (27).

15. Wheel rim according to claim 14, characterized in that the adapter disc is designed such that it can be arranged on a centering collar (26) of the wheel hub (5) or of a Radna ^¬ be (5) fastener connected.