BEARING ARRANGEMENT FOR A MOTOR VEHICLE

Abstract

The disclosure relates to a bearing arrangement for a motor vehicle, having a first component with a bearing eye, which a bearing bushing is arranged, a second component with a first and second attaching portion, which are arranged on both sides of the first component in a region of the bearing eye, and a tensioning device, which is guided axially through an inner sleeve of the bearing bushing via a shaft portion to optimize connection of two components via a bearing bushing. The tensioning device tensions the inner sleeve axially against the second attaching portion, avoiding the first attaching portion, and is received with radial form fit in a first recess of the first attaching portion by a head portion.

Claims

1. A bearing arrangement for a motor vehicle comprising: a first component with a bearing eye, in which a bearing bushing is arranged; a second component with a first and second attaching portion, arranged on both sides of the first component in a region of the bearing eye; and a tensioning device guided axially through an inner sleeve of the bearing bushing via a shaft portion, wherein the tensioning device tensions the inner sleeve axially against the second attaching portion, avoiding the first attaching portion, and is received with a radial, form fit in a first recess of the first attaching portion with a head portion.

2. The bearing arrangement as claimed in claim 1, wherein the shaft portion and the head portion are formed by a screw being arranged with some portions in a second recess of the second attaching portion.

3. The bearing arrangement as claimed in claim 2, wherein the first recess and the second recess are formed continuously in an axial direction.

4. The bearing arrangement as claimed in claim 2 wherein, the first recess defines an internal cross-section that corresponds at least to a maximum external cross-section of the screw.

5. The bearing arrangement as claimed in claim 1, wherein the first recess defines a radial internal dimension that is greater than a radial internal dimension of the second recess.

6. The bearing arrangement as claimed in claim 2, wherein the screw cooperates with a nut that is arranged on a side of the second attaching portion being opposite the first attaching portion.

7. The bearing arrangement as claimed in claim 1, wherein the head portion lies directly against the inner sleeve.

8. The bearing arrangement as claimed in claim 1, wherein the head portion is received in the first recess in a torsion-resistant manner.

9. The bearing arrangement as claimed in claim 1, wherein the first component is formed as a suspension control arm and the second component is formed as a wheel carrier.

10. The bearing arrangement as claimed in claim 1, wherein the bearing bushing has a rubber element surrounding the inner sleeve.

11. A vehicle comprising: a control arm with a bushing arranged within a bearing eye; a wheel carrier with first and second clevis arms on the control arm; and a screw guided through the bushing via a shaft such that a sleeve is axially tensioned against the second clevis arm, the screw avoiding the first clevis arm and including a head received with a radial, form fit in a first recess of the first clevis arm.

12. The vehicle as claimed in claim 11, wherein the first recess and a second recess of the second clevis arm are formed continuously in an axial direction.

13. The vehicle as claimed in claim 12, wherein the first recess defines a radial internal dimension that is greater than a radial internal dimension of the second recess.

14. The vehicle as claimed in claim 11, wherein the first recess defines an internal cross-section that corresponds to a maximum, external cross-section of the screw.

15. The vehicle as claimed in claim 11, wherein the head lies directly against the sleeve.

16. A vehicle suspension comprising: a control arm with a bushing arranged within a bearing eye; a wheel carrier with first and second clevis arms arranged on the control arm; and a screw guided through the bushing such that the sleeve is axially tensioned against the second clevis arm, wherein the screw avoids the first clevis arm and includes a head received with a radial, form fit in a first recess of the first clevis arm.

17. The vehicle suspension as claimed in claim 16, wherein the first recess and a second recess of the second clevis arm are formed continuously in an axial direction.

18. The vehicle suspension as claimed in claim 17, wherein the first recess defines a radial internal dimension that is greater than a radial internal dimension of the second recess.

19. The vehicle suspension as claimed in claim 16, wherein the first recess defines an internal cross-section that corresponds to a maximum, external cross-section of the screw.

20. The vehicle suspension as claimed in claim 16, wherein the head lies directly against the sleeve.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0035] FIG. 1 a partial sectional illustration of a first embodiment of a bearing arrangement according to the disclosure.

DETAILED DESCRIPTION

[0036] As required, detailed embodiments of the present disclosure are disclosed herein; however, it is to be understood that the disclosed embodiments are merely exemplary of the disclosure that may be embodied in various and alternative forms. The figures are not necessarily to scale; some features may be exaggerated or minimized to show details of particular components. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a representative basis for teaching one skilled in the art to variously employ the present disclosure.

[0037] FIG. 1 shows a partial, sectional illustration of a bearing arrangement 1 according to the disclosure, which can be part of a wheel suspension of an automobile, for example. In this case, a transverse control arm 2 is movably connected to a wheel carrier 7. The transverse control arm 2 has a bearing eye 2.1 at an end, into which a bearing bushing 3 is pressed, which, in the present case, is formed as a rubber-metal bushing. In this case, an outer sleeve 6 consisting of metal lies directly against the transverse control arm 2 within the bearing eye 2.1. This outer sleeve 6 concentrically surrounds an inner sleeve 4, likewise consisting of metal, wherein a rubber element 5 is arranged between the two sleeves 4, 6. In the present case, both sleeves 4, 6, like the rubber element 5, are constructed cylinder-symmetrically to an axis of symmetry S that extends in an axial direction A.

[0038] The wheel carrier 7 has a first attaching portion 7.1 and a second attaching portion 7.3, which are arranged opposite one another with respect to the transverse control arm 2. The attaching portions 7.1, 7.3 could also be referred to as clevis arms. A first recess 7.2 is formed within the first attaching portion 7.1, and a second recess 7.4 is formed within the second attaching portion 7.3. Both recesses 7.2, 7.4 are formed continuously in the axial direction A, and have a circular cross-section. In this case, a diameter of the first recess 7.2 is dimensioned to be considerably greater than a diameter of the second recess 7.4.

[0039] The attachment of the transverse control arm 2 to the wheel carrier 7 via the bearing bushing 3 takes place via a tensioning device 8 that, in the present example, comprises a screw 9 and a flange nut 10. The screw 9 is guided through the inner sleeve 4 via a shaft portion 9.1, and projects through the second recess 7.4 to a side of the second attaching portion 7.3 that is opposite the first attaching portion 7.1, where the screw 9 is secured via the flange nut 10. In this case, the screw 9 is arranged with play within the second recess 7.4. A head 9.2 of the screw 9, which can have a hexagon socket or other drive, for example, is received within the first recess 7.2, wherein a form fit is produced in a radial direction R. To enable introduction of the head 9.2 into the first recess 7.2, a slight, radial spacing is provided, which, in the present case however, is less than 1% of a radius of the first recess 7.2. In this case, a size of the radial spacing between the head 9.2 and the first attaching portion 7.1 is exaggerated in FIG. 1 and not shown to scale.

[0040] The head 9.2 lies against the inner sleeve 4 in the axial direction A. By tightening the flange nut 10 and the screw 9 against one another, an axially acting tensioning force is generated, through which the inner sleeve 4 is tensioned against the second attaching portion 7.3. Whilst the inner sleeve 4 therefore lies against the second attaching portion 7.3, the inner sleeve 4 is spaced from the first attaching portion 7.1. The tensioning in the axial direction A takes place avoiding the first attaching portion 7.1, so that no bending moments act on the attaching portions 7.1, 7.3.

[0041] Owing to the head 9.2 being received within the first recess 7.2 with form fit, any possible radial forces that act on the screw 9 on a part of the bearing bushing 3 are absorbed by the first attaching portion 7.1. This therefore contributes significantly to stabilization, even though it is not tensioned against the inner sleeve 4. On a part of the second attaching portion 7.3, radial forces are absorbed via a force fit between the inner sleeve 4 and the second attaching portion 7.3, and by a force fit between the flange nut 10 and the attaching portion 7.3. The inner sleeve 4 is therefore secured as a whole in the axial direction A and in the radial direction R. In some circumstances, however, a rotation in a tangential direction could occur. To prevent rotation in the tangential direction, instead of a head 9.2 with a circular cross-section, the screw 9 may be provided with a hexagonal head, for example, wherein the first recess 7.2 has a likewise hexagonal cross-section corresponding thereto.

[0042] While exemplary embodiments are described above, it is not intended that these embodiments describe all possible forms of the disclosure. Rather, the words used in the specification are words of description rather than limitation, and it is understood that various changes may be made without departing from the spirit and scope of the disclosure. Additionally, the features of various implementing embodiments may be combined to form further embodiments of the disclosure.