Disk Wheel for a Motor Vehicle and Method for Producing a Disk Wheel of This Type

Abstract

A disk wheel for a motor vehicle, in particular a single-track motor vehicle, includes: a wheel hub for mounting the disk wheel on the motor vehicle, which wheel hub is concentric to an axis of rotation of the disk wheel; a wheel rim, which is likewise concentric thereto; and a first and a second wheel disk. The first wheel disk and the second wheel disk each extend from the wheel rim toward the wheel hub, are mutually spaced on the wheel hub in a transverse direction which is parallel to the axis of rotation of the disk wheel, and run toward each other as they approach the wheel hub. The disk wheel also has at least two reinforcement ribs, which extend from the first wheel disk to the second wheel disk and interconnect the first wheel disk and the second wheel disk. The reinforcement ribs are distributed evenly around the axis of rotation of the disk wheel.

Claims

1.-15. (canceled)

16. A disk wheel for a single-track motor vehicle, comprising: a wheel hub, which is arranged concentrically with respect to an axis of rotation of the disk wheel, for mounting the disk wheel on the motor vehicle; a wheel rim which is concentric with respect to said wheel hub; and a first and a second wheel disk, wherein the first wheel disk and the second wheel disk each extend from the wheel rim in a direction of the wheel hub, are spaced apart from one another on the wheel hub in a transverse direction parallel to the axis of rotation of the disk wheel and converge with each other toward the wheel hub, at least two reinforcing ribs which extend from the first wheel disk to the second wheel disk and connect the first and second wheel disks to each other, wherein the reinforcing ribs are distributed uniformly about the axis of rotation of the disk wheel.

17. The disk wheel according to claim 16, wherein the first and the second wheel disk each form a surface which is completely closed in a circumferential direction about the axis of rotation.

18. The disk wheel according to claim 17, wherein the first and the second wheel disk extend from the wheel rim to the wheel hub at least over a quarter of the distance in the radial direction between the wheel rim and the wheel hub and each form the completely closed surface.

19. The disk wheel according to claim 15, wherein the wheel rim has two sections which are separated from each other and lie opposite each other in minor-inverted form with respect to a plane of symmetry, which plane is orthogonal to the axis of rotation, of the disk wheel, and the two sections are connected to each other by the wheel disks.

20. The disk wheel according to claim 15, wherein at least one reinforcing rib forms a cavity which is open to the wheel rim.

21. The disk wheel according to claim 20, wherein a sensor is arranged in the cavity.

22. The disk wheel according to claim 21, wherein in one of the two wheel disks, an opening is provided which leads to the cavity of the reinforcing rib and in which a sensor and/or a valve is accommodated

23. The disk wheel according to claim 20, wherein in one of the two wheel disks, an opening is provided which leads to the cavity of the reinforcing rib and in which a sensor and/or a valve is accommodated

24. The disk wheel according to claim 15, wherein excess material for balancing the disk wheel is provided on a side, facing the wheel rim, of at least a portion of the reinforcing ribs and/or in a circumferential direction about the axis of rotation at least of the portion of the reinforcing ribs.

25. The disk wheel according to claim 15, wherein the disk wheel is formed integrally.

26. The disk wheel according to claim 15, further comprising: at least two spokes which each extend from the first wheel disk and the second wheel disk to the wheel hub and connect them to one another.

27. The disk wheel according to claim 26, wherein the spokes are distributed uniformly about the axis of rotation of the disk wheel.

28. The disk wheel according to claim 26, wherein the number of spokes corresponds to the number of reinforcing ribs, and the reinforcing ribs arranged between the wheel disks merge into the spokes.

29. The disk wheel according to claim 26, wherein the spokes each run in a first section in a plane of symmetry orthogonal to the axis of rotation and run offset with respect to the plane of symmetry in a second section.

30. The disk wheel according to claim 15, further comprising: at least one group of fastening elements, which are arranged annularly about the wheel hub, for fixing a functional element to the disk wheel.

31. A method for producing a disk wheel having: a wheel hub, which is arranged concentrically with respect to an axis of rotation of the disk wheel, for mounting the disk wheel on the motor vehicle; a wheel rim which is concentric with respect to said wheel hub; and a first and a second wheel disk, wherein the first wheel disk and the second wheel disk each extend from the wheel rim in a direction of the wheel hub, are spaced apart from one another on the wheel hub in a transverse direction parallel to the axis of rotation of the disk wheel and converge with each other toward the wheel hub, at least two reinforcing ribs which extend from the first wheel disk to the second wheel disk and connect the first and second wheel disks to each other, wherein the reinforcing ribs are distributed uniformly about the axis of rotation of the disk wheel, the method comprising: forming the disk wheel integrally from a cast material and, during production of the disk wheel, first, casting a blank of the disk wheel that substantially corresponds to the disk wheel in a casting die having at least two slides, wherein the slides are distributed uniformly about the axis of rotation of the disk wheel to be produced, and an intermediate space between two slides in each case defines a reinforcing rib of the disk wheel to be produced; and removing the blank from the casting die, and, during the removal, displacing the slides radially outward, wherein an outer layer of the blank is removed at least in a section of the blank corresponding to the wheel disks in order to improve surface quality.

32. The method according to claim 31, wherein material on the reinforcing ribs is removed in order to balance the disk wheel.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0040] FIG. 1 is a perspective view of a disk wheel;

[0041] FIG. 2 is a top view of a first side of the disk wheel;

[0042] FIG. 3 is a top view of a second side of the disk wheel opposite the first side;

[0043] FIG. 4 is a front view of the disk wheel;

[0044] FIG. 5 is a first sectional view through the disk wheel; and

[0045] FIG. 6 is a second sectional view through the disk wheel.

[0046] The figures are schematic and by way of example and show one possible embodiment of a disk wheel according to the invention. Identical reference signs in the figures indicate identical functional and/or structural features. Since one possible embodiment is illustrated in all the figures, the description below of the figures refers at the same time to all of the figures.

DETAILED DESCRIPTION OF THE DRAWINGS

[0047] In FIG. 1, the disk wheel 1 is depicted in a perspective or isometric illustration. The wheel rim 30 consists of two sections 31, 32 which are separated from each other and are spaced apart from each other in a width direction parallel to the axis of rotation A of the disk wheel 1. As can be seen in FIG. 1, but also in particular in FIGS. 4 to 6, the two sections 31, 32 are connected via the wheel disks 21, 22 and the reinforcing ribs 40, 41 which lie between the wheel disks 21, 22.

[0048] The wheel disks 21, 22 extend from the wheel rim 30 or in each case from a section 31, 32 of the wheel rim 30 inward in the radial direction R toward the wheel hub 10. The wheel disks 21, 22 each provide a completely closed surface in the circumferential direction and along the distance between wheel rim and wheel hub to under the brake disks 2, 3 provided on the disk wheel 1, as a result of which the observer is provided with the typical appearance of a disk wheel at least in the region between the outer circumference of the brake disks 2, 3 and the wheel rim 30.

[0049] The region which lies within the outer circumference of the brake disks 2, 3 is not visible to the observer, when a disk wheel according to the invention is mounted on a motor vehicle or on a motorcycle, because of the brake system arranged there, and therefore the entire surface between wheel hub 10 and wheel rim 30 appears closed to the observer.

[0050] The two wheel disks 21, 22 converge with each other in the direction of the wheel hub 10 such that their distance from each other is reduced, and the distance from the axis of rotation A becomes so much smaller. The wheel disks 21, 22 here form a common section 23 which is particularly readily visible in particular in FIGS. 5 and 6 because of the respective sectional illustration and in which they are connected to each other and have a common profile toward the wheel hub 10.

[0051] In order to reduce weight, it is furthermore provided that the wheel disks 21, 22 do not extend as far as the wheel hub 10, but merge in their common section 23 into spokes 50 which extend from the common section 23 as far as the wheel hub 10 and connect the wheel rim 30 and also the first and second wheel disk 21, 22 to the wheel hub 10.

[0052] In order to stiffen the wheel disks 21, 22, the reinforcing ribs 40, 41 are furthermore provided at uniform distances in the circumferential direction about the axis of rotation A, wherein, in the case of the disk wheel 1 shown by way of example, the number of spokes 50 corresponds to the number of reinforcing ribs 40, 41 and the reinforcing ribs 40, 41 thereby merge into the spokes 50.

[0053] FIGS. 2 and 3 each show a side view of the disk wheel 1, wherein FIG. 2 corresponds to a first side view of a first side and FIG. 3 to a second side view of a second side which lies opposite the first side. The illustrated variant of the disk wheel provides five spokes 50 and five reinforcing ribs 40, 41 which are each distributed uniformly about the axis of rotation A such that an identical angle a is located between in each case two directly adjacent spokes 50 or between in each case two directly adjacent reinforcing ribs 40, 41, and the disk wheel 1 or the circular basic shape of the disk wheel 1 is divided into sectors of a circle of uniform size.

[0054] Fastened to the spokes 50 via fastening elements 61, 62, 63 is a first brake disk 2, on the first side of the disk wheel 1, and, on the second side of the disk wheel 1, a second brake disk 3 and an ABS sensor disk 4 which is surrounded in the radial direction R by the second brake disk 3.

[0055] The spokes 50 are each divided into three sections. A first section 51 runs in a plane of symmetry E of the disk wheel 1 and merges into two second sections 52 which each run spaced apart from and obliquely to the plane of symmetry E. The two second sections 52 lie in mirror-inverted form opposite each other with respect to the plane of symmetry E. In the respective transition region from the first section 51 to the two second sections 52, the fastening elements 61, 62 are designed as threaded bores for fixing the first and second brake disks 2, 3 to the disk wheel 1. In addition, at the transition sections, transverse struts 53 are provided between in each case two directly adjacent spokes 50, said transverse struts connecting the respective second sections 52 to one another in the transition region, as a result of which the spokes 50 together with the transverse struts 53 provide a basket- or cage-like construction which can be used integrally for fixing further functional elements, i.e. here the brake disks 2, 3, and provides a high degree of stability with a low weight.

[0056] In order to fix the ABS sensor disk 4, the fastening elements 63 of a third group of fastening elements are provided directly adjacent to the wheel hub 10 on the spokes 50 on the second side.

[0057] FIGS. 4 to 6 each show a front view of the disk wheel 1, wherein the disk wheel 1 is sectioned along the axis of rotation A in FIGS. 5 and 6 and is rotated in the circumferential direction in relation to FIG. 5 in FIG. 6.

[0058] As illustrated in FIG. 4, the sections 31, 32 of the wheel rim 30 are spaced apart from each other by the distance B, wherein the sections 31, 32 are connected to each other by the wheel disks 21, 22. In this case, a cavity is formed in that region of the disk wheel 1 which is inwardly adjacent in the radial direction R to the wheel rim 30, said cavity being bounded by the wheel disks 21, 22 and being divided into sectors by the reinforcing ribs 40, 41. On the side 45 of the reinforcing ribs 40, 41 which faces the wheel rim 30, the reinforcing ribs 40, 41 are concave, wherein material can be removed from the reinforcing ribs 40 on the side 45 facing the wheel rim 30 in order to balance the disk wheel 1.

[0059] The section in FIG. 5 runs through one of the simple reinforcing ribs 40 that do not form a cavity 42.

[0060] In a departure therefrom, the section in FIG. 6 runs through a reinforcing rib 41 which provides a cavity 42 which is open toward the wheel rim 30 and is connected in terms of flow to an opening 43 in the wheel disk 21. In the case of the disk wheel 1 reproduced by way of example, a valve 44 is screwed into the opening 43, the valve being connected in terms of flow via the opening 43 and the cavity 42 to the wheel rim 30 or to a tire which can be arranged thereon, and therefore the tire pressure of the tire can be changed via the valve 44. Furthermore, respective brake shoes 5 are shown on both sides of the brake disks 3, 4 in FIG. 6 as part of the brake system of the motorcycle.

[0061] The invention is not restricted in its embodiment to the preferred exemplary embodiments indicated above. On the contrary, a number of variants making use of the illustrated solution even in embodiments which are of fundamentally different type is conceivable.