Rim ring, rim and vehicle wheel for a motor vehicle

Abstract

The invention relates to a wheel rim ring (10) for a wheel rim (100) of a vehicle wheel (200) for a motor vehicle, wherein the wheel rim comprises an inner wheel flange (101) and an outer wheel flange (102), an inner wheel shoulder (103) and an outer wheel shoulder (104), and a wheel disc, wheel star or spoke (105), wherein the wheel rim has a wheel flange (106) connected to the wheel disc, wheel star or spoke (105) for fastening at a wheel hub of the motor vehicle, wherein the wheel disc, wheel star or spoke (105) and / or the wheel flange (106) are arranged in the region of the outer wheel shoulder (104), wherein the wheel rim ring (10) comprises an annular base body (11) with a central opening (12) and is designed for placement at the inner wheel flange (101) and / or the inner wheel shoulder (103) of the wheel rim (100). Furthermore, the invention relates to a wheel rim (100) and to a vehicle wheel (200).

Description

Technical Field

[0001] This invention relates to a rim ring for a vehicle wheel rim, wherein the rim has an inner rim flange and an outer rim flange, an inner rim shoulder and an outer rim shoulder, and spokes. Furthermore, the rim has a wheel flange connected to the spokes for securing to the vehicle's hub, wherein the spokes and / or the wheel flange are arranged in the region of the outer rim shoulder. Furthermore, this invention also relates to a rim for a vehicle wheel and a vehicle wheel for a motor vehicle. Background Technology

[0002] Vehicle wheels with aerodynamic covers at the spokes or flanges of the vehicle wheel are known from the prior art. For example, DE 10 2016 013 286 A1 discloses a vehicle wheel comprising a rim connected to a wheel flange via spokes, the rim having a plurality of movable covers on the outer side of the spokes. Furthermore, a vehicle wheel with a fixing device for a disc cover at the wheel flange is known from DE 20 2021 101 794U1. The aerodynamic advantages of using known covers are achieved on the outer side of the vehicle wheel, i.e., in the region of the outer rim flange. However, none of the known solutions considers the aerodynamic effects on the inner side of the vehicle wheel (i.e., in the region of the inner rim flange). Summary of the Invention

[0003] Therefore, the object of the present invention is to at least partially eliminate the disadvantages described above in vehicle rims and wheels. In particular, the object of the present invention is to improve the aerodynamic characteristics of vehicle rims or wheels used in motor vehicles.

[0004] The above-mentioned task is accomplished by the rim ring according to the invention, by the rim according to the invention, and by the vehicle wheel according to the invention.

[0005] Other features and details of the invention will be derived herein, including the specification and drawings. The features and details described herein in connection with the rim ring according to the invention also apply to the rim according to the invention or the vehicle wheel according to the invention, and vice versa, so that the disclosures relating to various aspects of the invention are always cross-referenced or can be cross-referenced.

[0006] According to a first aspect of the invention, this task is solved by a rim ring for a vehicle wheel rim used in a motor vehicle, wherein the rim includes an inner rim flange and an outer rim flange, an inner rim shoulder and an outer rim shoulder, a disc, a star-shaped portion or spoke, and a wheel flange connected to the disc, star-shaped portion or spoke for fixing to the hub of the motor vehicle, and the disc, star-shaped portion or spoke and / or wheel flange are arranged in the region of the outer rim shoulder. The rim ring includes an annular base with a central opening and is designed for placement at the inner rim flange and / or inner rim shoulder of the rim.

[0007] In other words, the present invention includes an annular or substantially annular rim ring designed for mounting on the inner side of a vehicle wheel rim. In the sense of the present invention, the inner side of the rim is located at the inner rim flange, the inner rim shoulder, and / or in the region between the inner rim flange and the rim center located between the inner and outer rim flanges. On the inner side of the rim, particularly in the region where the rim ring is mounted, preferably there are no spokes, discs, or star-shaped portions, and no wheel flanges fixed to the spokes, discs, or star-shaped portions for mounting to the wheel hub of the motor vehicle.

[0008] The base of the rim ring preferably has a circular geometry, particularly a circular end face. This has the advantages that the rim ring corresponds to the circular geometry of the rim and simplifies the installation of the rim ring at the rim. For example, the base can be a conical sleeve construction or a disc-shaped construction such as a washer. The central opening of the base is preferably substantially concentric with the central axis of the rim ring base to ensure that the vehicle wheel can be easily installed at the hub of the motor vehicle using the rim ring. Furthermore, the rim ring preferably has a larger area in the central opening than in the surface formed by the material of the base, which has the advantage of simple installation. This ensures that the drive axle of the motor vehicle, and if possible, the elastic strut, can be guided through the central opening. The diameter of the base is preferably equal to or smaller than the inner diameter of the rim at the inner edge of the rim so that it can be fixed to the inside of the rim. The base can include, for example, plastic, steel, aluminum and / or alloys, or can be formed from plastic, steel, aluminum and / or alloys. Preferably, the base has a certain shape stability to avoid vibration caused by the rim ring of the vehicle wheel rim during the use of the motor vehicle. For example, the substrate may also have a certain degree of flexibility to simplify the (e.g., subsequent) installation of the rim ring.

[0009] In the vehicle area, particularly around the wheels and wheel arches, fully turbulent flow occurs, generating vortex formation and increasing aerodynamic drag. The rim ring according to the invention offers the advantage of reducing vortex formation and aerodynamic drag by constructing a flow-friendly shape on the inner side of the rim. The reduced aerodynamic drag from the rim ring improves the driving range of electric vehicles or reduces fuel consumption in internal combustion engine vehicles. Furthermore, improved driving stability is achieved. The rim ring is preferably designed for rims with a diameter greater than 19 inches, particularly for rims with diameters between 19 and 21 inches, as these rims exhibit particularly high aerodynamic drag in the inner region of the rim.

[0010] According to a preferred improvement of the invention, the opening in the rim ring can be constructed as circular.

[0011] The central opening of the base can have various shapes, but is particularly preferably constructed to be circular. This has the advantage that vehicle wheels can be mounted particularly easily onto the equally circular hubs of motor vehicles using the rim ring according to the invention.

[0012] According to a preferred embodiment of the invention, the rim ring is preferably configured such that the base has a height (H) of 25 mm to 40 mm, wherein the height (H) corresponds to the radial distance between the inner edge and the outer edge of the base occupied by the material.

[0013] The substrate, with a height of 25mm to 40mm, is shaped to be particularly favorable for airflow, and within this range, a significant improvement of 1 / 1000 to 4 / 1000 in the overall aerodynamic drag coefficient (CW value) of the vehicle is achieved. Furthermore, the 25mm to 40mm height ensures that mounting the vehicle wheel at the wheel hub is not difficult without using rim rings.

[0014] It is also advantageous that the matrix in the rim ring according to the invention is constructed to be shape-stable.

[0015] This has the following advantages: during the use of a motor vehicle, vibrations caused by the rim rings of the vehicle's wheels are avoided.

[0016] Furthermore, it is advantageous that, in the rim ring according to the invention, the base has a width (B) of 4 mm to 6 mm, particularly preferably 5 mm, wherein the width (B) corresponds to the amount of extension of the rim ring in the axial direction relative to the central opening.

[0017] A width of 4mm to 6mm, and especially 5mm, ensures that the substrate possesses a certain degree of shape stability and avoids vibrations caused by the rim rings of the vehicle wheels during vehicle use. For example, it can be envisioned that the width of the substrate corresponds to the depth of the inner rim edge, such that the end face of the substrate is flush or nearly flush with the edge of the inner rim. This flush surface represents a shape particularly favorable for flow, thereby advantageously influencing the cw value of the vehicle wheel or the vehicle as a whole.

[0018] Another particularly advantageous embodiment of the invention is that, in the rim ring, the base can consist of at least two separate annular elements connected to each other.

[0019] In other words, the substrate can be constructed in multiple parts. For example, the substrate can be formed from two, three, or four annular elements, and is particularly preferably formed from two annular elements. Preferably, the annular elements are securely connected to each other, for example, by means of force-fitting and / or material-fitting connections. For example, this can be a threaded connection, a clamping connection, a locking connection, a welded connection, and / or an adhesive connection. The annular elements can be interconnected by, for example, having specific fixing areas, fasteners, or fixing openings. Preferably, the annular elements are fixed to each other such that the sides of the annular elements are flat, i.e., they extend to each other in a plane.

[0020] Designing the base with at least two annular elements offers the following advantages: it facilitates the installation of the rim ring onto wheeled vehicles. Furthermore, it allows for subsequent installation after the rim or vehicle wheel has been mounted on the vehicle. Additionally, this design improves vehicle safety by allowing the rim ring, formed by multiple annular elements, to detach from the rim or vehicle if it needs to be removed. This prevents damage to the vehicle and / or its wheels.

[0021] According to a preferred embodiment of the present invention, in the rim ring according to the present invention, the rim ring may include at least one additional body element in addition to the base body, the additional body element being connected to the side of the rim ring base facing the wheel flange.

[0022] In other words, the rim ring may include additional components pointing towards the rim center or wheel flange. Particularly preferably, the additional body element can be used to secure the rim ring to the rim. Furthermore, the additional body element enables the absence of contaminants or deposits accumulating at the interface between the rim ring's base and the rim. Preferably, the at least one additional body element has at least one surface pointing towards the base, at least one surface pointing towards the rim, and at least one free surface. Particularly preferably, the at least one additional body element has a curved free surface, thereby avoiding sharp edges or corners formed between the base and the rim, in that the at least one additional body element forms a smooth transition between the surfaces of the base and the rim through its curved surface. This prevents the accumulation of contaminants or moisture in the edges or corners between the rim ring and the rim.

[0023] In another preferred embodiment, the base and / or the at least one additional body element in the rim ring may have at least one opening and / or groove at the center and / or at the end.

[0024] In other words, the rim ring may have at least one, and particularly preferably multiple, openings for the drainage of water or contaminants, ensuring that water and / or other contaminants inside the rim can flow out or be removed, or can be removed, through these openings. Grooves and / or openings may be constructed, for example, as elongated holes, particularly partially arc-shaped. Preferably, the at least one opening and / or groove is located at the center of the base and / or the center of the at least one additional body element. Particularly preferably, the at least one opening and / or groove is located in a region or at the end side of the base and / or the additional body element. In a preferred embodiment, the base and / or the at least one additional body element has five elongated holes at the end side of the rim ring, thereby enabling a uniform distribution of the openings and / or grooves and thus allowing for uniform removal of water and / or contaminants along the rim ring.

[0025] Furthermore, according to a preferred embodiment, the rim ring may be configured to have at least one fixing area, fixing element and / or fixing opening at the base and / or at the at least one additional body element for mounting the rim ring at the inner rim periphery and / or inner rim shoulder.

[0026] In other words, the rim ring may have at least one region in which it can be forcefully, form-fittingly, and / or materially fitted to or connected to the rim. For example, the rim ring may have at least one protruding locking lug and / or a receiving portion for the locking lug in at least one fixed region as a fastener at the base and / or the at least one additional body element, so as to secure the rim ring to the rim by means of a locking connection. For example, the locking lug or the receiving portion of the locking lug may be configured as a locking lug or receiving portion surrounding the rim ring. Preferably, the rim ring may have at least one fixing opening, particularly a blind hole or a through hole, in at least one fixed region at the base and / or the at least one additional body element, so that the rim ring can be secured to the hub, particularly by means of a threaded connection. For this purpose, the fixing opening may have a threaded opening. Furthermore, the rim ring may also have at least one fixed region in which it can be connected to the rim, for example by means of a welded connection, a clamping connection, or an adhesive connection. Furthermore, it is feasible for the rim ring to have a clamping protrusion for clamping connection in at least one fixed area. It is also feasible for the rim ring to be connected to the rim by means of a combination of force fit, form fit, and / or material fit connections. For example, the rim ring may have two or more locking connections and two or more threaded connections.

[0027] An embodiment with a fixing area, fastener, and / or fixing opening at the base and / or at least one additional main body element ensures that the rim ring can be targeted, reliably, and easily installed on the rim. This simplifies installation and prevents the rim ring from coming loose from the rim or vehicle wheel during use of the motor vehicle.

[0028] Another advantage is that, in the rim ring according to the invention, the base and / or additional body elements are constructed of plastic.

[0029] This offers the following advantages: the rim ring can be constructed to be exceptionally lightweight, thus saving weight. Furthermore, due to its plastic construction, the rim ring can be made shape-stable while also possessing a degree of flexibility. This helps prevent vibrations at the vehicle wheels during vehicle use, while the flexibility simplifies installation.

[0030] According to a second aspect of the invention, this task is solved by a wheel rim. According to the invention, the wheel rim includes at least one rim ring as described above, wherein the rim ring is fixed to the inner rim flange and / or inner rim shoulder of the wheel rim by means of a force-fit, form-fit, and / or material-fit connection, or the rim ring and the wheel rim are manufactured from a single piece. Therefore, the wheel rim itself according to the invention brings the same advantages as those already described in detail regarding the rim ring according to the invention.

[0031] The rim according to the invention comprises an inner rim flange and an outer rim flange, an inner rim shoulder and an outer rim shoulder, a disc, a star-shaped portion or spoke, and a wheel flange connected to the disc, star-shaped portion or spoke for fixing to the hub of a motor vehicle, wherein the disc, star-shaped portion or spoke and / or wheel flange are arranged in the region of the outer rim shoulder. The disc, star-shaped portion or spoke and / or wheel flange connected to the disc, star-shaped portion or spoke may preferably be arranged in the region between the outer rim flange and the rim center located between the inner and outer rim flanges, particularly preferably in the region of the outer rim shoulder. In other words, the rim particularly preferably has a positive offset, i.e., the inner contact surface of the wheel flange is shifted outward about the wheel center. Preferably, the rim may also have zero or negative offset. Furthermore, the rim preferably has a deep groove. The wheel flange of the rim preferably includes a bore ring and a hub bore or centering hole. The wheel disc or star-shaped portion can be removable or fixedly connected to the rim. For example, the rim can be a one-piece or two-piece rim. The rim preferably has at least one circular raised portion in the area of ​​the inner rim shoulder and / or the outer rim shoulder. The raised portion is constructed, for example, as a round (hump) or flat (flat hump). The rim is preferably made of steel or a light metal alloy, either pressed or cast. Light metal rims have the advantages of lower weight and ensure more efficient brake ventilation and heat dissipation.

[0032] The rim according to the invention further includes a rim ring as described above according to the first aspect. The rim ring can be connected to the rim by means of a force-fit, form-fit, and / or material-fit connection. With a force-fit and / or form-fit connection, the rim ring is preferably releasably fixed to the rim. For example, the rim ring and / or the rim has at least one protruding locking lug and / or a receiving portion for at least one locking lug for connection, so as to forcefully and / or form-fitly connect the rim and the rim ring to each other by means of a locking connection. The locking connection can preferably be released again by a defined force. For example, a plurality of locking lugs are provided around the rim ring. The receiving portion of the locking lug can be configured as a receiving portion around the rim ring. Furthermore, the rim and the rim ring can be connected to each other by means of a force-fit connection (e.g., a threaded connection), wherein the rim ring and / or the rim preferably have at least one fixed opening, particularly a blind hole or a through hole. The fixed opening can preferably have a threaded orifice. Furthermore, the rim ring and the rim can be interconnected, for example, by means of welding, clamping, and / or adhesive bonding, in a force-fit and / or material-fit manner, wherein the rim ring and / or the rim preferably have at least one fixed area. For example, it is feasible for the rim ring and / or the rim to have a clamping protrusion for clamping connection in at least one fixed area. It is also feasible for the rim ring and / or the rim to be interconnected by means of a combination of force-fit, form-fit, and / or material-fit connections. For example, the rim ring and the rim can be interconnected by means of two or more locking connections and two or more threaded connections. The rim ring can preferably be connected to the rim such that the end face of the inner rim flange forms a flush or nearly flush surface with the rim ring, thereby constructing a shape particularly favorable for flow. It is also conceivable that the rim ring is configured to be tapered towards the center of the rim.

[0033] The rim according to the invention has the following advantages: due to the flow-facilitating shape of the rim produced by the rim ring, the aerodynamic drag of the rim is significantly reduced, thus improving the overall vehicle's CW value. Designing the rim and rim ring as separate components (interconnected by means of force fit, form fit, and / or material fit) has the following advantages: the rim and rim ring can be manufactured separately. This allows for more flexible production and the use of different materials for the rim and rim ring. Furthermore, in case of damage, either the rim or the rim ring can be replaced separately. Additionally, the rim ring can be subsequently installed onto the rim. The force fit, form fit, and / or material fit connection further ensures that the rim ring cannot detach from the rim during the vehicle's use, thus guaranteeing vehicle safety.

[0034] Alternatively, the rim and rim ring can be formed from a single piece, for example, by casting. This has the advantages of increased rim strength due to the absence of weakening at the joint. This also improves vehicle safety in particular. Furthermore, it is advantageous to avoid seams and interfaces that could lead to poor sealing or corrosion.

[0035] According to a preferred embodiment of the present invention, the rim may have at least one mating fixing area, a mating fixing member and / or a mating fixing opening for fixing the rim ring.

[0036] In other words, to enable the rim ring to be connected to the rim in a force-fit, shape-fit, and / or material-fit manner, the rim can preferably have at least one mating fixing area, a mating fixing element, and / or a mating fixing opening. For example, the rim, as a mating fixing element, has at least one protruding locking lug and / or a receiving portion for at least one locking lug in at least one mating fixing area, so as to fix the rim ring to the rim by means of a locking connection. For example, multiple locking lugs are constructed around the periphery of the rim, or the receiving portion of the locking lug is constructed as a surrounding receiving portion. Preferably, the rim can have at least one mating fixing opening in at least one fixing area, particularly a blind hole or a through hole, so that the rim ring can be fixed to the rim by means of a threaded connection. For this purpose, the fixing opening can have a threaded orifice. In addition, the rim can also have at least one mating fixing area in which the rim ring is connected to the rim by means of a welded connection, a clamping connection, or an adhesive connection. It is feasible for the rim to have a clamping protrusion for a clamping connection in at least one mating fixing area. Alternatively, the rim ring can be connected to the rim by means of a combination of force-fit, form-fit, and / or material-fit connections. For example, the rim ring may have two or more locking connections and two or more threaded connections. Preferably, the mating fixing area, the mating fixing element, and / or the mating fixing opening are designed to correspond to at least one fixing area, fixing element, and / or fixing opening of the rim ring. To achieve a force-fit connection by means of a threaded connection, the rim ring may, for example, have a fixing opening for threading the threaded element, and the hub may have a corresponding threaded mating fixing opening, or vice versa. For example, if the rim ring is connected to the hub by means of a locking connection, the rim ring preferably has at least one locking lug as a fixing element, and the hub has a receiving element for the at least one locking lug as a fixing element, or vice versa. For clamping or adhesive connections, the rim preferably has a mating fixing area, and the rim ring has a fixing area in which the rim can be clamped or bonded to the rim ring. The at least one mating fixing area, the mating fixing member, and / or the mating fixing opening are preferably located in the area between the inner rim periphery and the rim center of the wheel rim.

[0037] With the aid of the at least one mating fixing area, mating fastener, and / or mating fixing opening, the rim ring can be specifically and reliably secured to the rim. This simplifies installation and prevents the rim ring from coming loose from the rim during use of the vehicle.

[0038] In another preferred embodiment, the rim ring base and / or additional body elements can be manufactured from a single piece along with the rim.

[0039] This has the following advantages: the rim has higher strength because there is no weakening at the connection points between the rim, the base, and / or additional body components. This also improves vehicle safety in particular. Furthermore, it is advantageous to avoid seams and joints that could lead to poor sealing or corrosion.

[0040] Furthermore, according to a preferred embodiment of the invention, the rim and the rim ring can be constructed of the same material.

[0041] This has the following advantages: the rim can, for example, be formed from a single piece. Furthermore, the same material provides better joining properties and allows for simpler processing. Additionally, this can, for example, avoid electrochemical corrosion that can occur in different materials.

[0042] According to a third aspect of the invention, this task is accomplished by a vehicle wheel for a motor vehicle. According to the invention, the vehicle wheel includes a rim as described above, wherein a tire is arranged at the rim.

[0043] The vehicle wheels preferably have tires that wrap around the ends of the rims. The motor vehicle can, in principle, be any type of motor-driven vehicle. In particular, the motor vehicle can be a passenger car or a truck, and is especially preferred to be a passenger car that is at least partially electrically powered.

[0044] The vehicle wheel described in this invention offers the same advantages as those already described in detail regarding the rim ring and the rim according to the invention. In other words, the third aspect of the invention comprises a vehicle wheel with preferred aerodynamic performance, particularly an improved cw value relative to a vehicle wheel without the rim described above. Attached Figure Description

[0045] The following description, with reference to the accompanying drawings, explains in more detail the rim ring according to the invention, the rim according to the invention, and the vehicle wheel according to the invention. Schematic illustrations are provided below: Figure 1 A rim ring according to a preferred embodiment of the present invention is shown. Figure 2 A rim ring according to another preferred embodiment of the invention is shown. Figure 3A rim ring according to another preferred embodiment of the invention is shown. Figure 4 A rim ring according to another preferred embodiment of the invention is shown. Figure 5 A rim ring according to another preferred embodiment of the invention is shown. Figure 6 A section of a wheel rim according to a preferred embodiment of the invention is shown in cross-section. Figure 7 A section of the rim according to another preferred embodiment of the invention is shown in cross-section. Figure 8 A section of the rim according to another preferred embodiment of the invention is shown in cross-section. Figure 9 A vehicle wheel according to a preferred embodiment of the present invention is shown in a side view. Figure 10 A vehicle wheel according to another preferred embodiment of the invention is shown in a side view.

[0046] exist Figures 1 to 10 In this context, components with the same function and operating method are assigned the same reference numerals. Detailed Implementation

[0047] Figures 1 to 5 Preferred embodiments of the rim ring 10 according to the invention are shown. In these embodiments, the rim ring 10 has a base 11 and a central opening 12. Furthermore, these embodiments have a height H, wherein the height H corresponds to the radial distance between the inner edge 13 and the outer edge 14 of the base 11 occupied by material, and a width B, which corresponds to the amount of extension of the base 11 in the axial direction relative to the central opening 12. The height H of the rim ring 10 according to the invention is preferably chosen such that it achieves an advantageous reduction in the cw value without hindering the mounting of the vehicle wheel 200 at the hub of the motor vehicle. The width of the base 11 is variable and can, for example, be adapted to a mating fixing region 107a inside the rim 100. For example, the width B of the rim ring 10 according to the invention can be adapted to the depth of the inner rim flange 101 to form a flush and therefore airflow-friendly surface.

[0048] Figure 2An embodiment of a rim ring 10 with five fixed openings 21c according to the present invention is shown. The rim ring 10 may also have more or fewer than five fixed openings 21c. In particular, the five fixed openings 21c ensure uniform fixation of the rim ring 10 at the rim 100 and uniform distribution of force. The fixed openings 21c may preferably extend centrally along the centerline of the rim ring 10 and / or be offset relative to the outer edge 14 and / or the inner edge 13 occupied by the material.

[0049] exist Figure 3 The image illustrates one embodiment of a rim ring 10 according to the invention, wherein the rim ring 10 is constructed from two annular elements 15. Preferably, the annular elements 15 are connected to each other in a force-fitting, form-fitting, and / or material-fitting manner to construct an annular base 11. For example, the annular elements 15 can be connected to each other by means of threaded connections, clamping connections, locking connections, adhesive connections, and / or welding connections. For this purpose, the annular elements 15 may have at least one fixing region, fastener, and / or fixing opening.

[0050] Figure 4 An embodiment of the rim ring 10 according to the invention is shown, having five grooves 20 along the end side 18 of the rim ring 10. The rim ring 10 may also have more or fewer than five grooves 20. Preferably, the grooves 20 are evenly distributed along the end side 18 of the rim ring 10. In particular, five grooves 20 allow the grooves 20 to be evenly distributed along the end side 18 of the rim ring 10. After being placed in the rim 100, the grooves 20 of the rim ring 10 together with the rim 100 form preferably curved elongated holes through which water and other contaminants within the rim 100 can exit.

[0051] exist Figure 5 Another embodiment of the rim ring 10 according to the invention is shown, wherein the rim ring 10 has five gaps 19 in the region of the end side 18 of the rim ring 10. The rim ring 10 may also have more or fewer than five gaps 19. Preferably, the gaps 19 are evenly distributed in the region of the end side 18 or along the center 17 of the rim ring 10. In particular, five gaps 19 allow the gaps 19 to be evenly distributed in the region of the end side 18 or along the center 17 of the rim ring 10.

[0052] Figures 6 to 8 A cross-sectional view of a segment of a wheel rim 100 according to a preferred embodiment of the invention is shown. These embodiments of the wheel rim 100 include an inner rim flange 101 and an outer rim flange 102, an inner rim shoulder 103 and an outer rim shoulder 104, spokes 105, and a wheel flange 106 connected to the spokes 105 for fixing to the hub of a motor vehicle, wherein the spokes 105 and / or the wheel flange 106 are arranged in the region of the outer rim shoulder 104. Figures 6 to 8As shown, the spokes 105 and / or the wheel flange 106 connected to the spokes 105 are preferably arranged in the region between the outer rim flange 102 and the rim center located between the inner rim flange 101 and the outer rim flange 102, and particularly preferably in the region of the outer rim shoulder 104. In other words, the rim 100 is particularly preferably having a positive offset, i.e., the inner abutment surface of the wheel flange 106 is shifted outward about the rim center. Preferably, the rim 100 may also have a zero or negative offset. Furthermore, Figures 6 to 8 One embodiment of the rim 100 has a deep groove 108, although the rim 100 may also lack a deep groove 108. The wheel flange 106 of the rim 100 preferably includes a bore ring and a hub bore or centering bore. The rim 100 preferably has at least one circumferential raised portion in the region of the inner rim shoulder 103 and / or the outer rim shoulder 104. The raised portion may be constructed, for example, as a rounded (hump) or flat (flat hump). Figures 6 to 8 In one embodiment of the rim 100, a rim ring 10 is disposed in the region of the inner rim flange 101. The outer edge 14 occupied by the material of the rim ring 10 is the fixing region 21a of the rim ring 10, which is fixed to the inner rim flange 101 of the rim 100, which represents the mating fixing region 107a of the rim 100. Preferably, the rim ring 10 has a width corresponding to that of the inner rim flange 101, such that the end sides of the rim ring 10 and the inner rim flange 101 form flush surfaces. The central opening 12 of the rim ring 10 is concentrically constructed so that the wheel flange 106 can be reliably and easily connected to the wheel hub of the motor vehicle through the central opening 12.

[0053] Figure 6 An embodiment of the rim 100 is shown, wherein the outer edge 14 occupied by the material of the rim ring 10 represents the fixing region 21a of the rim ring 10, which is fixed to the inner rim flange 101 of the rim 100, which represents the mating fixing region 107a of the rim.

[0054] Figure 7 An embodiment of the rim 100 is shown, wherein the rim ring 10 has an additional main body element 16 in addition to the base 11. In addition to the main body 11, the additional main body element 16 also has a fixing region 21a, by which the rim ring 10 can be fixed to the rim 100.

[0055] Figure 8 An embodiment of the rim 100 is shown, wherein the rim ring 10 has a tapered, inwardly pointing base 11.

[0056] Figure 9 and Figure 10A vehicle wheel 200 according to a preferred embodiment of the invention is shown in the side view. The side view of the vehicle wheel 200 shows a rim 100 surrounded by a tire 109 (particularly the tire itself), which has spokes 105 and a flange 106. The rim 100 has a rim ring 10 at the inner rim flange 101.

[0057] exist Figure 10 In one embodiment, the vehicle wheel 200 has a rim ring 10 with five grooves 20 at the end side 18 of the rim ring 10.

[0058] Reference Symbol List 10 rim rings 11. Ring matrix 12. Central opening 13. The inner edge occupied by the material 14. The outer edge occupied by the material 15 Ring elements 16 Additional main components 17 Central 18 end sides 19. Empty Section 20 grooves 21a Fixed area 21b Fastener 21c Fixed opening H height B width 100 rim 101 Inner rim flange 102 Outer rim flange 103 Inner rim shoulder 104 Outer rim shoulder 105 spokes 106 wheel flange 107a Pairing Fixed Region 107b Matching fastener 107c Pairing and fixing opening 108 deep trench 109 Tires 200 Vehicle wheels.

Claims

1. A rim ring (10) for use in a rim (100) of a vehicle wheel (200) for a motor vehicle, wherein the rim (100) includes an inner rim flange (101) and an outer rim flange (102), an inner rim shoulder (103) and an outer rim shoulder (104), and a disc, a star-shaped portion or a spoke (105), wherein the rim (100) has a wheel flange (106) connected to the disc, star-shaped portion or spoke (105) for fixing at the hub of the motor vehicle, wherein the disc, star-shaped portion or spoke (105) and / or the wheel flange (106) are arranged in the region of the outer rim shoulder (104). Its features are, The rim ring (10) includes an annular base (11) with a central opening (12) and is designed for placement at the inner rim flange (101) and / or the inner rim shoulder (103) of the rim (100).

2. The rim ring (10) according to any one of the preceding claims, Its features are, The central opening (12) is circular.

3. The rim ring (10) according to any one of the preceding claims, Its features are, The main body (11) is constructed to be shape-stable.

4. The rim ring (10) according to any one of the preceding claims, Its features are, The base (11) has a width (B) of 4 mm to 6 mm, particularly preferably 5 mm, wherein the width (B) corresponds to the amount of extension in the axial direction relative to the central opening (12).

5. The rim ring (10) according to any one of the preceding claims, Its features are, The substrate (11) consists of at least two interconnected individual ring elements (15).

6. The rim ring (10) according to any one of the preceding claims, Its features are, The rim ring (10) includes at least one additional body element (16) in addition to the base (11), which is connected to the side of the base (11) facing the wheel flange (106).

7. The rim ring (10) according to any one of the preceding claims, Its features are, The base (11) and / or the at least one additional main body element (16) have at least one empty portion (19) and / or groove (20) at the center (17) and / or at the end side (18).

8. The rim ring (10) according to any one of the preceding claims, Its features are, The rim ring (10) has at least one fixing area (21a), a fixing member (21b) and / or a fixing opening (21c) at the base (11) and / or at at least one additional body element (16) for placing the rim ring (10) at the inner rim flange (101) and / or the inner rim shoulder (103).

9. The rim ring (10) according to any one of the preceding claims, Its features are, The substrate (11) and / or the additional body element (16) are made of plastic.

10. A rim (100) for a vehicle wheel (200), having a rim ring (10) according to any one of the preceding claims, Its features are, The rim ring (10) is fixed to the inner rim flange (101) and / or the inner rim shoulder (103) of the rim (100) by means of force fit, shape fit and / or material fit, or the rim ring (10) and the rim (100) are manufactured from a single piece.

11. The wheel rim (100) according to claim 10 Its features are, The rim (100) has at least one mating fixing area (107a), a mating fixing member (107b) and / or a mating fixing opening (107c) for fixing the rim ring (10).

12. The rim (100) according to claim 10 or 11, Its features are, The main body (11) and / or the additional main body element (16) of the rim ring (10) and the rim (100) are manufactured from a single piece.

13. The rim (100) according to any one of claims 10 to 12, Its features are, The rim (100) and the rim ring (10) are constructed of the same material.

14. A vehicle wheel (200) for a motor vehicle, the vehicle wheel (200) having a rim (100) according to any one of claims 10 to 13, wherein a tire is arranged at the rim (100).

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