阅读说明：本技术 用于机动车的轮距加宽盘 (Track-widening disc for motor vehicle ) 是由 E·西蒙扬 于 2020-01-30 设计创作，主要内容包括：本发明涉及一种用于机动车的轮距加宽盘,该轮距加宽盘具有：中间开口；多个车轮螺栓开口；和至少两个用于使所述轮距加宽盘相对于轮毂定心的轮毂定心元件,其特征在于,所述中间开口的直径大于所述轮毂的定心元件的直径,其中设置有至少两根用于使所述轮距加宽盘相对于轮辋定心的轮辋定心销,其中所述至少两个轮毂定心元件布置在所述中间开口的环绕的壁(1020)上,其中所述至少两个轮毂定心元件至少区段式地伸入到所述轮距加宽盘的中间开口中。(The invention relates to a track-widening disc for a motor vehicle, having: a middle opening; a plurality of wheel bolt openings; and at least two hub centering elements for centering the track-widening disc with respect to the hub, characterized in that the diameter of the central opening is greater than the diameter of the centering elements of the hub, wherein at least two rim centering pins are provided for centering the track-widening disc with respect to the rim, wherein the at least two hub centering elements are arranged on a circumferential wall (1020) of the central opening, wherein the at least two hub centering elements project at least in sections into the central opening of the track-widening disc.)

1. Track-widening disc (10) for a motor vehicle, having:

-an intermediate opening (102),

-a plurality of wheel bolt openings (104), and

-at least two hub centering elements (106) for centering the track widening disc (10) with respect to the hub (20),

it is characterized in that the preparation method is characterized in that,

the diameter of the intermediate opening (102) is greater than the diameter of a centering element (202) of the hub (20), wherein

At least two rim centering pins (108) are provided for centering the track widening disc (10) relative to the rim (30), wherein the at least two hub centering elements (106) are arranged on a circumferential wall (1020) of the central opening (102), wherein

The at least two hub centering elements (106) project at least in sections into the central opening (102) of the track-widening disk (10).

2. The track-widening disc (10) according to claim 1, characterized in that the at least two rim centering pins (108) are arranged on a circumferential wall (1020) of the intermediate opening (102) and the at least two rim centering pins (108) project at least in sections into the intermediate opening (102) of the track-widening disc (10) and extend out of the track-widening disc (10) along a central longitudinal axis (a) thereof.

3. Track-widening disc (10) according to claim 1 or 2, characterized in that one rim centering pin (108) and one hub centering element (106) each are arranged substantially one after the other, viewed in the direction of the central longitudinal axis (a) of the track-widening disc (10).

4. Track-widening disc (10) according to at least one of the preceding claims, characterized in that the at least two hub centring elements (106) and the at least two rim centring pins (108) are constructed integrally with the track-widening disc (10).

5. The track-widening disc (10) according to at least one of claims 1 to 3, characterized in that the at least two hub centering elements (106) and the at least two rim centering pins (108) are constructed as separate components.

6. Track-widening disc (10) according to at least one of the preceding claims, characterized in that at least three rim centring pins (108) are provided.

7. The track-widening disc (10) according to claim 6, characterized in that at least three rim centering pins (108) are distributed at equal intervals along the circumference of the central opening (102), in particular the three rim centering pins (108) are arranged offset by 120 degrees with respect to one another.

8. Track-widening disc (10) according to at least one of the preceding claims, characterized in that the track-widening disc (10) has at least three hub centring elements (106).

9. The track-widening disc (10) according to at least one of the preceding claims, characterized in that the surrounding wall (1020) of the intermediate opening (102) is oriented parallel to a central longitudinal axis (A) of the track-widening disc (10).

10. The track-widening disc (10) according to at least one of the preceding claims, characterized in that the plurality of wheel stud openings (104) are configured as oblong holes, in particular as curved oblong holes.

11. Track-widening disc (10) according to at least one of the preceding claims, characterized in that the track-widening disc (10) has a thickness along its central longitudinal axis (a) which is less than 15mm, in particular 2mm, in particular 3mm, 5mm, 8mm or 10mm, in particular between 2mm and 15 mm.

12. The track-widening disc according to at least one of the preceding claims, characterized in that a chamfer (52) is respectively provided at the transition between the radially outer surface of the rim centering pin (108) and the rim contact surface (100) of the track-widening disc (50).

13. The track-widening disc according to claim 12, characterized in that an annular projection (54) surrounding the intermediate opening (102) and adjoining the intermediate opening (102) is provided, which merges into the chamfer (52) of the rim centering pin (108).

14. Assembly with a hub (20) for a motor vehicle, a track-widening disc (10) according to at least one of claims 1 to 10 and a rim (30), wherein:

-the hub (20) has a centering element (202) extending from the hub (20) along a central longitudinal axis of the hub,

-the centering element (202) has a centering ring (2020) and at least two centering protrusions (2022),

-the centering ring (2020) starts at the same height as an abutment surface (204) of a hub (20) for a track-widening disc (10), extends away from the abutment surface (204) along the central longitudinal axis and is centered with respect to the central longitudinal axis of the hub (20),

-at least two centering projections (2022) extend from the centering ring (2020) substantially parallel to a central longitudinal axis of the hub (20),

-the centering element (202) has a larger diameter at the at least two centering protrusions (2022) than at the centering ring (2020),

-the track widening disc (10) is centred with respect to the hub (20),

-the rim (30) is centred with respect to the track widening disc (10), and

-the plurality of wheel stud openings (104) of the track widening disc are oriented in alignment with the plurality of wheel stud openings of the rim and the plurality of wheel stud openings or support studs of the hub,

it is characterized in that the preparation method is characterized in that,

at least two rim centering pins (108) of the track widening disc (10) are arranged between at least two centering projections (2022) of the hub (20), and the track widening disc (10) abuts against the centering ring (2020) by means of the at least two hub centering elements (106).

15. Assembly according to claim 14, characterized in that the centering elements (202) of the hub (20) have at least three centering projections (2022) which extend out of the centering ring (2020) in a uniform spacing distribution, in particular offset by 120 degrees, within the circumferential extent of the central opening of the hub (20).

16. Assembly according to claim 14 or 15, characterized in that a plurality of rim centering pins (108), a track widening disc (10), in particular three rim centering pins (108), are arranged between a plurality of centering protrusions (2022) of the hub (20).

17. Assembly according to at least one of claims 14 to 16, characterized in that at least two rim centering pins (108) of the track widening disc (10) project beyond at least two centering projections (2022) of a centering element (202) of the hub (20) along the central longitudinal axis of the hub.

Technical Field

The invention relates to a track-widening disc (sprrverbreiterungsscheibe) for a motor vehicle, having a central opening, a plurality of wheel bolt openings and at least two hub centering elements for centering the track-widening disc relative to a hub. The invention further relates to an assembly having a hub, a track-widening disc and a rim for a motor vehicle.

Disclosure of Invention

The aim of the invention is to improve the centering of a relatively thin track-widening disk for a motor vehicle on a wheel hub.

In order to solve this object, according to the invention, a track-widening disk for a motor vehicle is provided having the features of claim 1 and an assembly having a wheel hub, a track-widening disk for a motor vehicle and a wheel rim according to claim 14. Improvements are specified in the dependent claims 2 to 13 and 15 to 17.

According to the invention, a track-widening disk for a motor vehicle is provided, which has a central opening, a plurality of wheel stud openings and at least two hub centering elements for centering the track-widening disk relative to a hub, wherein the diameter of the central opening is greater than the diameter of the centering elements of the hub, wherein at least two rim centering pins are provided for centering the track-widening disk relative to the rims, wherein at least two hub centering elements are arranged on a circumferential wall of the central opening, wherein the at least two hub centering elements protrude at least in sections into the central opening of the track-widening disk.

In the sense of the present invention, a track-widening disk, also referred to as a spacer, is a disk which is used to widen the track width and thus enlarge the track width of a motor vehicle. The track-widening disks can have different designs. Particularly advantageous is the design of the track-widening disk in the form of a ring, wherein the elements of the track-widening disk are arranged as symmetrically as possible around the central longitudinal axis of the track-widening disk. The symmetrical design of the track-widening disk is particularly advantageous with regard to the distribution of the mass around the rotational axis, which ideally corresponds to the central longitudinal axis of the track-widening disk, in order to avoid possible imbalances during rotation of the track-widening disk.

"central opening" is to be understood to mean a recess which extends along the central longitudinal axis of the track-widening disk through the track-widening disk and is able to receive a centering element of a wheel hub at least in sections by: the centering elements of the hub protrude into the central opening or pass through the central opening. In a preferred embodiment, the central opening is arranged centrally on the track-widening disk. The central opening has a circumferential wall which has a height along the central longitudinal axis of the track-widening disk, which in turn corresponds to the thickness of the track-widening disk.

Furthermore, the track widening disk has a plurality of wheel bolt openings, in particular five wheel bolt openings. The wheel bolt openings are embodied as through openings. The wheel bolt openings are on a larger diameter than the diameter of the central opening. In addition, the diameter of the wheel bolt opening is smaller than the outer diameter of the track widening plate itself. A plurality of wheel bolt openings, for example three wheel bolt openings, are provided. Four or more wheel bolt openings are advantageously provided. In a preferred embodiment, five wheel bolt openings are provided.

Furthermore, the track widening disc has at least two hub centering elements for centering the track widening disc relative to the hub. A prerequisite for centering the track-widening disk with respect to the hub is that the diameter of the central opening is larger than the diameter of the centering element of the hub, since otherwise the track-widening disk cannot be pushed over the centering projection of the hub. In a preferred embodiment, the at least two hub centering elements are arranged on a circumferential wall of the central opening and project at least in sections into the central opening of the track-widening disk. Thus, when the track-widening disc is pushed onto the hub and thus onto the centering elements of the hub, centering of the track-widening disc relative to the hub can be achieved by means of the at least two hub centering elements. For this purpose, it is particularly advantageous if the at least two hub centering elements are arranged substantially opposite one another and/or uniformly spaced apart from one another on the circumferential wall of the central opening, in order to ensure centering of the track widening disc relative to the hub as easily, reliably and without play as possible. For example, only one hub centering element can also be provided. The hub centering elements on one side and the surrounding wall of the central opening on the substantially opposite side then serve to center the track-widening disk relative to the hub. Preferably, the centering of the track-widening disk relative to the hub is performed by at least two hub centering elements which are arranged substantially opposite and/or evenly spaced apart on a surrounding wall of the central opening.

The track widening disc has at least two rim centring pins. The at least two rim centering pins are adapted for centering the rim relative to the track widening disc. The at least two rim centering pins are arranged such that they lie on an imaginary circumferential line with an outer diameter which corresponds to the centering diameter of the rim or is slightly smaller than it. For this purpose, the rim advantageously has a centering element which has the centering diameter of the rim and can be pushed onto at least two rim centering elements. Thereby, the rim can be centered with respect to the track widening disc. In practice, the centering element of the rim can be configured as a cylindrical central hole.

In a further development of the invention, it can be provided that the at least two rim centering pins are arranged on a circumferential wall of the center opening and that the at least two rim centering pins project at least in sections into the center opening of the track-widening disk and extend away from the track-widening disk along a central longitudinal axis of the track-widening disk.

It is particularly advantageous if the at least two rim centering pins are arranged substantially opposite one another and/or spaced apart from one another uniformly on the circumferential wall of the central opening, in order to achieve a reliable and easy centering of the track-widening disc relative to the rim. In order to be able to configure the at least two rim centering pins sufficiently stable, the rim centering pins advantageously project into the central opening of the track widening disk. This arrangement is produced by: the intermediate opening must have a larger diameter than the centering elements of the hub, whereas the at least two rim centering pins must lie on an imaginary circle having an outer diameter, which corresponds to the centering diameter of the rim, which is smaller than or at least as large as the diameter of the intermediate opening of the track-widening disc. The at least two rim centering pins thereby project at least in sections radially into the center opening or into the projection of the center opening with respect to the central longitudinal axis of the track widening disk.

The two rim centering pins extend away from the track widening disk along a central longitudinal axis of the track widening disk. It is particularly advantageous if the long design of the at least two rim centering pins results in a better guidance of the centering elements of the rim relative to the track-widening disk and thus in a better, easier and more reliable centering of the rim relative to the track-widening disk. The rim centering pin can be at least twice as long as the thickness of the track widening disc.

In a further development of the invention, it can be provided that, in each case, a rim centering pin and a hub centering element are arranged substantially one behind the other, viewed in the direction of the central longitudinal axis of the track-widening disk.

"substantially arranged one behind the other" means that the rim centering pin follows the hub centering element, viewed in the direction of the central longitudinal axis. In other words, the rim centring pins and the hub centring elements are not completely offset from each other. However, the rim centering pins can be embodied wider or narrower than the hub centering elements, viewed in the circumferential direction around the central longitudinal axis of the track-widening disk. In a preferred embodiment, however, the rim centering pins are embodied substantially as wide as the hub centering elements, viewed in the circumferential direction around the central longitudinal axis of the track-widening disk.

It is particularly advantageous if the rim centering pins and the hub centering elements are embodied as wide as possible in the circumferential direction around the central longitudinal axis, in order to achieve a reliable and easy centering of the rim relative to the track-widening disc by means of the rim centering elements and of the track-widening disc relative to the hub by means of the hub centering elements. For this purpose, the at least two rim centering pins have a rim centering surface which is as large as possible, in particular convexly curved, and the hub centering element has a hub centering surface which is as large as possible, in particular concavely curved.

In a further development of the invention, it can be provided that the at least two hub centering elements and the at least two rim centering pins are formed in one piece with the track-widening disk.

In a preferred embodiment, the at least two hub centering elements and the at least two rim centering pins are formed in one piece and are therefore also formed from the same material as the track widening disc. The track-widening disks are for example made of aluminum or other light and still strong material.

In a development of the invention, it can be provided that the at least two hub centering elements and the at least two rim centering pins are designed as separate components.

In a further embodiment, a component separate from the track-widening disc is provided, which component has at least two rim centering pins and at least two hub centering elements, which component can be inserted into a central opening of the track-widening disc. The intermediate opening then has a larger diameter than the outer diameter of the centering element. For example, the separate component is a ring made of plastic, which can be fastened to the surrounding wall of the central opening of the track-widening disk by means of a latching mechanism. This ring has a hub centering element which, in the mounted state, extends towards the central longitudinal axis of the track-widening disc and ensures centering of the track-widening disc relative to the hub. Furthermore, the ring has a rim centering pin which, in the mounted state, is arranged in front of or behind the at least two hub centering elements, respectively, along the central longitudinal axis of the track-widening disc, from which it extends exactly along the central longitudinal axis of the track-widening disc and which ensures centering of the track-widening disc relative to the rim. This separate component, which for example can also consist of a plastic-like material or another suitable material, has at least two rim centering pins and at least two hub centering elements.

In a further development of the invention, it can be provided that at least three rim centering pins are provided.

In a further development of the invention, it can be provided that the at least three rim centering pins are arranged distributed at equal distances along the circumference of the central opening and in particular that the three rim centering pins are arranged offset by 120 ° with respect to one another.

It is particularly advantageous if the three rim centering pins are arranged in such a way that a reliable and easy centering of the rim on the track-widening disc can be achieved by the at least three rim centering pins. For this purpose, the rim centering pin can be curved on the rim centering surface.

In a development of the invention, it can be provided that the track-widening disk has at least three hub centering elements.

As long as the at least three hub centering elements are arranged at a uniform and/or as large a distance as possible from one another on the circumferential wall of the central opening, a better and easier centering of the track widening disk on the centering elements of the hub is ensured by the at least three hub centering elements. In a preferred embodiment, the at least three hub centering elements are arranged along the central longitudinal axis behind at least three rim centering pins, wherein the at least three rim centering pins are arranged distributed at equal distances along the circumference of the central opening, offset by 120 ° with respect to one another.

In a development of the invention, it can be provided that the circumferential wall is oriented parallel to the central longitudinal axis of the track-widening disk.

When the circumferential wall is oriented at least substantially parallel to the central longitudinal axis of the track-widening disk, the at least two or at least three hub centering elements arranged on the circumferential wall can taper slightly conically towards the central longitudinal axis and in the same direction in which the at least two or at least three rim centering pins also extend, in order to be able to compensate for tolerances when the track-widening disk is pushed onto the centering elements of the hub. The at least two or at least three hub centering elements are thereby tapered in the same direction, in which the at least two or at least three rim centering pins also extend, so that the further the track widening disc is pushed onto the centering elements of the hub, the more secure the centering of the track widening disc on the centering elements of the hub is achieved.

This configuration can also be used for the rim centering pin, so that the rim centering surface of the rim centering pin can be conically tapered in the direction of the central longitudinal axis away from and parallel to the center longitudinal axis of the track-widening disk, in order to achieve a centering of the rim relative to the track-widening disk that is as free of play and reliable as possible. The further the rim is pushed onto the at least two or at least three rim centering pins of the track-widening disc, the better the rim is centered on the track-widening disc.

It is thereby possible to compensate for tolerances, in particular manufacturing tolerances, when mounting the rim on the track-widening disc and precisely when mounting the track-widening disc on the hub, and to mount the rim on the track-widening disc always without play and the track-widening disc always on the centering element of the hub without play.

In a further development of the invention, it can be provided that the plurality of wheel bolt openings are formed as oblong holes, in particular as curved oblong holes.

By configuring the plurality of wheel bolt openings as elongated holes, not only can tolerances of the hole patterns of the plurality of wheel bolt openings of the wheel hub and of the plurality of wheel bolt openings of the rim be compensated by means of the elongated holes of the wheel bolt openings of the track widening disk, but the track widening disk can also be used for different vehicles having different hole patterns or bolt patterns. The curved design of the elongated hole ensures that the distance of the central longitudinal axis of the track widening disk from the central longitudinal axis of the wheel bolt when the wheel bolt is inserted is the same in every position of the wheel bolt in the curved elongated hole.

In a development of the invention, it can be provided that the track-widening disk has a thickness along a central longitudinal axis of the track-widening disk which is less than 15mm, in particular less than 2mm, in particular less than 3mm, 5mm, 8mm or 10mm, in particular between 2mm and 15 mm.

It is particularly preferred that the track-widening disk is designed as a thin track-widening disk, which differs from a thick track-widening disk in that the track-widening disk has a thickness along the central longitudinal axis of 2mm to 15 mm. Particularly preferred are thin track-widening disks having a thickness of 3mm, 5mm, 8mm or 10mm along the central longitudinal axis of the track-widening disk.

In a development of the invention, chamfers are provided in each case at the transitions between the radially outer surface of the rim centering pin and the disk surface of the track-widening disk.

The rim centering pin can be stabilized by means of a chamfer or chamfer between the radially outer lateral surface of the rim centering pin and the disk surface of the track widening disk. In the mounted state of the track-widening disc, the rim rests against the disc surface and the radially outer lateral surface of the rim centering pin rests against the central bore of the rim. A chamfer is also usually provided at the transition between the central bore of the rim and the contact surface of the rim. In the mounted state, therefore, there is sufficient space for providing a chamfer or chamfer between the rim centering pin and the disk surface.

In a development of the invention, an annular projection is provided which surrounds the central opening and adjoins the central opening, said annular projection transitioning into a chamfer of the rim centering pin.

In this way, the chamfer or chamfer on the radially outer lateral surface of the rim centering pin can extend around the entire central opening. The track-widening disc can be reinforced overall by means of such an annular projection which surrounds the entire central opening. This can then be particularly advantageous if very thin track-widening disks with a thickness of only a few millimeters are used.

According to the invention, an assembly having a hub for a motor vehicle, a track-widening disc according to the invention and a rim is also proposed, wherein the hub has a centering element which extends from the hub along a central longitudinal axis of the hub, wherein the centering element has a centering ring and at least two centering projections, wherein the centering ring starts at the same height as an abutment face of the hub for the track-widening disc, extends away from the abutment face along the central longitudinal axis and is centered with respect to the central longitudinal axis of the hub, wherein the at least two centering projections extend from the centering ring substantially parallel to the central longitudinal axis of the hub, wherein the centering element has a larger diameter on the at least two centering projections than on the centering ring, wherein the track-widening disc is centered with respect to the hub, wherein the rim is centered with respect to the track-widening disc, wherein the plurality of wheel stud openings of the track widening disc are oriented in alignment with a plurality of wheel stud openings of the rim or a plurality of wheel stud openings of the hub or supporting studs (Stehbolzen), wherein the at least two rim centering pins are arranged between at least two centering projections and the track widening disc abuts against a centering ring by means of at least two hub centering elements.

The centering elements of the hub have a larger diameter on at least two centering projections than a centering ring, which begins at the same height as the contact surface of the hub for the track-widening disk and extends along the central longitudinal axis of the hub away from the contact surface of the hub. In order to achieve the centering of the track-widening disc relative to the hub by means of the centering ring of the centering elements of the hub and the at least two hub centering elements of the track-widening disc, the hub centering elements of the track-widening disc define a section of an imaginary circle having an inner diameter which corresponds to the outer diameter of the centering ring of the centering elements of the hub or is only slightly larger. In order to be able to bring the hub contact surface of the track-widening disk into contact with the contact surface of the hub by means of the centering elements of the hub during the mounting process, the diameter of the central opening of the track-widening disk is made larger than the outer diameter of the centering elements of the hub at the at least two centering projections. During the mounting of the track-widening disc on the hub, it should therefore be noted that the hub centering elements and thus the rim centering pins arranged substantially behind the hub centering elements along the central longitudinal axis of the track-widening disc also come into abutment with the hub between at least two centering projections of the hub centering elements. In the state in which the track-widening disc is mounted on the hub, the track-widening disc is thereby centered with respect to the centering elements of the hub by means of at least two hub centering elements. The centering of the track-widening disk on the hub takes place by means of a hub centering surface of the hub centering element, which surface bears against a centering ring of the centering element. Furthermore, the abutment surface of the hub and the hub abutment surface of the track widening disk abut against each other.

In a further development of the invention, it can be provided that the centering element has at least three centering projections which extend out of the centering ring in a uniformly spaced manner, in particular offset by 120 °, over the circumference of the central opening of the hub.

The three centering projections are arranged in such a way that a reliable and easy centering of the rim on the hub can be achieved by the at least three centering projections without a track-widening disk when the rim is mounted on the hub. In order to be able to center a thin track-widening disk, which overlaps the centering bead originally provided for the rim, on the hub, a hub centering element of the track-widening disk is provided, which abuts against a centering ring of the hub.

In a development of the invention, it can be provided that the plurality of rim centering pins, in particular three rim centering pins, are arranged between a plurality of centering projections.

In a preferred embodiment, a plurality of rim centering pins are arranged between the plurality of centering projections. The plurality of rim centering pins are therefore arranged between the plurality of centering projections, since they project from the circumferential wall of the central opening of the track-widening disk into said central opening and thereby form an inner diameter of the central opening of the track-widening disk which is smaller than the outer diameter of the centering elements at the plurality of centering projections. In this way, the hub contact surface of the track-widening disk can only be brought into contact with the contact surface of the hub in an orientation in which a plurality of rim centering pins are arranged between a plurality of centering projections. The same applies to the plurality of hub centering elements, which are arranged substantially behind the plurality of rim centering pins, as seen in the direction of the central longitudinal axis of the track widening disc. The plurality of hub centering elements also reduce the diameter of the central opening of the track-widening disk in such a way that the hub contact surface of the track-widening disk can only be brought into contact with the contact surface of the hub in an orientation in which the plurality of hub centering elements and thus also the plurality of rim centering pins are arranged between the plurality of centering projections. In this case, the plurality of hub centering elements rest on the centering ring of the centering elements of the hub and center the track-widening disk relative to the hub.

It is particularly advantageous if, by means of this arrangement, a particularly thin track-widening disc can be mounted which does not project beyond the centering bead of the hub, which was originally provided for the rim, along the central longitudinal axis of the hub at the level of the contact surface of the hub and which therefore cannot be centered at the centering bead of the hub, which was originally provided for the rim.

In a development of the invention, it can be provided that the at least two rim centering pins of the track widening disc project along the central longitudinal axis of the hub beyond the at least two centering projections of the centering elements of the hub.

The rim centering pins of the track-widening disk project beyond the centering projections of the centering elements of the hub in the mounted state, thereby ensuring that the rim is reliably received and reliably centered relative to the track-widening disk without the rim at least partially bearing against the centering projections of the centering elements of the hub, which were originally associated with the rim.

Drawings

Further advantages and aspects of the invention emerge from the claims and from the following description of a preferred embodiment of the invention, which is explained below with the aid of the drawings. The individual features of the different embodiments shown and described can be combined with one another in any desired manner without departing from the scope of the invention. The same applies to combinations of individual features without other individual features, which are described and/or illustrated in combination. Shown here are:

fig. 1 shows an isometric view from obliquely above of a track-widening disc according to a first embodiment of the invention;

FIG. 2 shows an isometric view of the track widening disc of FIG. 1 from obliquely below;

FIG. 3 shows a side view of the track widening disc of FIG. 1;

FIG. 4 shows a top view of the track widening disc of FIG. 1;

FIG. 5 shows a bottom view of the track widening disc of FIG. 1;

FIG. 6 shows an isometric view of a cut-out from obliquely above of an assembly having a hub, a rim and the track widening disc of FIG. 1;

fig. 7 shows an enlarged isometric view of the assembly according to fig. 6 from obliquely above;

FIG. 8 shows a front view of a track-widening disc according to a second embodiment of the invention;

FIG. 9 shows a side view of the track widening disc of FIG. 8;

fig. 10 shows an isometric view of the track widening disc of fig. 8 from obliquely above with two additional enlarged detail views.

Detailed Description

Fig. 1 shows an isometric view from obliquely above of a track-widening disc 10 according to a first embodiment of the invention. The track widening disc 10 has a central opening 102 and five wheel bolt openings 104. The wheel bolt openings 104 are arranged as curved oblong holes and through openings on the track-widening disc 10. Furthermore, the five wheel bolt openings 104 are located on a diameter between the outer diameter of the track widening disk 10 and the diameter of the central opening 102. Furthermore, three hub centering elements 106 are provided, which are each arranged behind one of the three rim centering pins 108 shown in fig. 1 along the central longitudinal axis a of the track widening disk 10 shown in fig. 3. Both the three hub centering elements 106 and the three rim centering pins 108 are arranged on a circumferential wall 1020 of the central opening 102. More precisely, the three hub centering elements 106 and the three rim centering pins 108 extend from the circumferential wall 1020 of the central opening 102 and thus reduce the diameter of the central opening 102 at least in sections. Fig. 1 also shows a rim contact surface 100, which in the mounted state is in contact with a rim, not shown, for which purpose reference is made to fig. 6 and 7. Fig. 1 also shows that the rim centering pins 108 each have a convexly curved rim centering surface 1080 facing away from the central opening 102.

Fig. 2 shows an isometric view of the track-widening disc 10 of fig. 1 from obliquely below. Fig. 2 further shows substantially the features already shown in fig. 1 and explained. In contrast to fig. 1, fig. 2 shows a hub contact surface 101, which in the installed state rests on a hub, not shown, for which purpose reference is made to fig. 6 and 7. Furthermore, also shown in fig. 2 are a central opening 102 with a surrounding wall 1020, five wheel bolt openings 104, a hub centering element 106 and a rim centering pin 108. It can also be seen that the hub centering elements 106 each have a concavely curved hub centering surface 1060 which is oriented toward the central longitudinal axis of the track widening disk 10.

Fig. 3 shows a side view of the track-widening disc 10 according to fig. 1. Fig. 3 further shows substantially the features already shown and explained in fig. 1 and 2. Three rim centering pins 108 are shown, along with flat rim abutment surfaces 100, flat hub abutment surfaces 101 and a central longitudinal axis a. The rim centering surface 1080 is visible at least at two of the three rim centering pins 108.

Fig. 4 shows a top view of the track-widening disc 10 according to fig. 1. Fig. 4 further shows substantially the features already shown and explained in fig. 1 to 3. Not only the rim contact surface 100, the central opening 102 with the surrounding wall 1020, but also five wheel bolt openings 104 in the form of five elongated holes are shown. The three rim centering pins 108 shown in top view also each show a convexly curved rim centering face 1080.

Fig. 5 shows a bottom view of the track-widening disc 10 according to the first embodiment of the invention. Fig. 5 further substantially shows the features already shown and explained in fig. 1 to 4. The hub contact surface 101, the central opening 102 with the surrounding wall 1020 and the five wheel stud openings 104, which are designed as oblong holes, are shown. Furthermore, hub centering elements are depicted each having a concavely curved hub centering surface 1060. Furthermore, the rim centering pins 108 are visible from the underside, and it can be seen that the rim centering pins 108 protrude into the intermediate openings 102 to a greater extent than the hub centering elements 106.

Fig. 6 shows a cut-out of an isometric view from obliquely above of the assembly with the hub 20, the rim 30 and the track-widening disc 10 according to the invention of fig. 1. The track-widening disk 10 is located between the hub 20 and the rim 30 and bears both against the hub 20 and against the rim 30. The rim 30 is fixed to the hub 20 by a plurality of wheel bolts 40, and the track widening plate 10 is clamped between the rim 30 and the hub 20. By way of this section, only three wheel bolts 40 are drawn out of the five wheel bolts 40. Furthermore, the track-widening disks 10 are centered with respect to the centering elements 202 of the hub 20. Furthermore, the rim 30 is centered with respect to the track-widening disk 10 by means of a rim centering pin 108 of the track-widening disk 10.

Fig. 7 shows an enlarged isometric view of a cut-out from obliquely above of the assembly according to fig. 6. Fig. 7 further substantially illustrates the features already described and illustrated in fig. 6. Fig. 7 also shows the hub 20 together with the centering elements 202 and the contact surface 204 of the hub 20. The centering element 202 has a centering ring 2020 and a centering projection 2022. The centering element 202 is designed as a substantially cylindrical tube, three recesses being provided in the wall of the tube, which recesses extend from the upper edge of the centering element 202 in fig. 7 down to the circumferential centering ring 2020. Thus, the centering projection 2022 is configured as three equal-length sections that are evenly spaced apart from each other in the circumferential direction. The centering ring 2020 begins at the level of the abutment surface 204 of the hub 20 and extends upwardly from the abutment surface 204 in the direction of the central longitudinal axis of the hub 20. In the region of the centering ring 2020, the centering element 202 has a smaller diameter than in the region of the centering projections 2022. Thus, the centering projection 2022 protrudes in the radial direction with respect to the centering ring 2020. The track-widening disk 10 rests on the bearing surface of the hub 204 by means of the hub bearing surface 101. Furthermore, the rim centering pins 108 are located, as viewed in the circumferential direction, between the centering projections 2022 of the centering elements 202 of the hub 20. In the illustrated arrangement along a central longitudinal axis a, which is not illustrated, the hub centering element 106 is arranged below the rim centering pin 108. The hub centering elements 106 are aligned and centered at the centering ring 2020 of the centering elements 202 of the hub 20 by means of a hub centering surface 1060, on which the hub centering elements 106 are arranged. That is, the hub centering surface 1060 abuts the centering ring 2020 of the centering element 202 of the hub 20. Furthermore, the rim 30 is centered on the rim centering pin 108 by means of the central hole 308 of the rim 30. Here, the convexly curved rim centering surface 1080 rests against the wall 3080 of the rim center bore 308. Furthermore, it can be seen that the rim centering pin 108 exceeds the centering projection 2022 by about twice along the central longitudinal axis a. The wheel bolts 40 fix the rim 30 to the hub 20 and clamp the track widening disc 10 between the rim 30 and the hub 20. In this case, the contact surface 204 of the hub 20 contacts the hub contact surface 101 of the track-widening disk 10 and the rim contact surface 100 of the track-widening disk 10 contacts the contact surface of the rim 304.

When mounting the track-widening disc 10 on the hub 20, the track-widening disc 10 should be oriented such that the three rim centering pins 108 of the track-widening disc 10 are arranged between the centering projections 2022 of the centering elements 202 of the hub 20. The track-widening disks 10 can then be pushed onto the centering elements 202 of the hub 20. The hub centering elements 106 of the track widening disc 10 then enable centering of the track widening disc 10 relative to the hub 20 by: the hub centering surface 1060 abuts against the centering ring 2020 of the centering element 202.

When mounting the rim 30 on the track-widening disk 10, the rim 30 should be oriented relative to the track-widening disk 10 in such a way that the three rim centering pins 108 of the track-widening disk 10 are in the extension of the central hole 308 relative to the rim 30. The wheel rim 30 can then be pushed with the central bore 308 onto the three rim centering pins 108 of the track widening disk 10. The three rim centering pins 108 of the track-widening disk 10 can center the rim 30 on the track-widening disk 10 by means of three convexly curved rim centering surfaces 1080 which bear against the inner wall of the central bore 308 of the rim 30. If necessary, the wheel rim 30 must then be rotated about the central longitudinal axis until the wheel stud openings of the wheel rim 30 are aligned with the wheel stud openings of the track widening disk 10 and of the wheel hub 20. This step can be eliminated if the hub is provided with support bolts. Finally, the wheel bolt 40 is screwed in.

Fig. 8 shows a top view of a track-widening disc 50 according to a second embodiment of the invention. The track-widening disks 50 differ only slightly from the track-widening disks 10 of fig. 1 to 5, so that only the differences between the track-widening disks 50 and the track-widening disks 10 are explained below. The components of the track-widening disc 50 that are functionally identical and/or identical to the track-widening disc 10 are denoted by the same reference numerals.

The track-widening disks 50 each have a chamfer 52 at the transition between the rim contact surface 100 and the radially outer surface of the rim centering pin 108. This chamfer 52 forms a chamfer and is embodied, for example, at an angle of 45 ° with respect to the radially outer surface of the rim centering pin 108 and the rim contact surface 100. The bevels 52 each stabilize the associated rim centering pin 108.

It can also be seen in fig. 8 that an annular projection 54 is provided which directly adjoins the central opening 102 of the track-widening disk 50 and which surrounds the central opening 102. In the region of the rim centering pin 108, the circumferential annular projection 54 merges into the chamfer 52. Referring to fig. 9, the annular projection 54 projects slightly beyond the rim contact surface 100 of the track widening disk 50, for example by only 1 to 2 mm. However, the annular projection 54 significantly stabilizes the track widening disc 50. This is particularly advantageous if the track-widening disc 50 has a thickness of only a few millimeters.

In fig. 9, it can be seen at the upper rim centering pin 108 in fig. 9 that the chamfer 52 forms an angle of 45 ° both with respect to the rim contact surface 100 and with respect to the radially outer surface of the rim centering pin 108. The chamfer 52 is embodied slightly above the surrounding annular projection 54.

Fig. 10 shows an isometric view of the track-widening disc 50 of fig. 8 from obliquely above. The design of the chamfer 52 between the rim contact surface 100 and the respective radially outer surface of the rim centering pin 108 can be gathered from fig. 10, see also the enlarged detail in fig. 10. Furthermore, the circumferential annular projection 54 can be clearly seen.