Control arm for a wheel suspension in a motor vehicle

Abstract

A control arm for a wheel suspension in a motor vehicle has a control arm body made of light metal. The control arm body has two parallel side walls. An elongated hole for an eccentric mount is provided in at least one side wall. The eccentric mount has a base plate with an elongated hole. An anchor body extending on the side of the edge of the elongated hole is provided at the rear of the base plate. At the front, the base plate has two eccentric stops projecting from the base plate. The eccentric mount is inserted with the anchor body into the elongated hole of the side wall and joined by pressing into the elongated hole.

Claims

1. A control arm for a wheel suspension in a motor vehicle comprising: a control arm body which has two side walls, wherein an elongated hole is in at least one side wall of the two side walls, and in the elongated hole an eccentric mount is fixed, the eccentric mount has a base plate with an elongated hole opening, wherein an anchor body extending at an edge of the elongated hole opening is at a rear of the base plate, and two eccentric stops projecting from the base plate are at a front of the base plate, the eccentric mount is pressed together with the anchor body in the elongated hole, wherein the anchor body is annular around the elongated hole opening, wherein a press joint is between a circumferential outer surface of the anchor body and an inner surface of the elongated hole in the at least one side wall.

2. The control arm according to claim 1, wherein the anchor body has a ring extending around the elongated hole opening and projecting from the rear of the base plate.

3. The control arm according to claim 1, wherein the two eccentric stops are formed by turned-over edge webs on an outer circumference of the base plate.

4. The control arm according to claim 1, wherein the eccentric mount and the base plate, the anchor body and the two eccentric stops comprise a single piece.

5. The control arm according to claim 1, wherein the anchor body passes through the elongated hole in the at least one side wall, and the anchor body is deformed on a side of the at least one side wall opposite the base plate.

6. The control arm according to claim 1, wherein the control arm body comprises aluminum.

7. The control arm according to claim 1, wherein the eccentric mount comprises steel.

8. The control arm according to claim 1, wherein the eccentric mount has a surface coating, the surface coating comprising a zinc or zinc flake coating.

9. The control arm according to claim 1, wherein the base plate has a rectangular outer contour.

10. The control arm according to claim 1, wherein the base plate has a circular or elliptical outer contour.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The present disclosure is described in more detail below with reference to embodiments shown in the drawings, as follows:

(2) FIG. 1 is a perspective view of a section of a control arm showing a side wall and an eccentric mount joined to the side wall in accordance with the present disclosure;

(3) FIG. 2 shows the eccentric mount in a side view in accordance with the present disclosure;

(4) FIG. 3 shows the eccentric mount in a plan view in accordance with the present disclosure;

(5) FIG. 4 shows a section through the representation of FIG. 2 as well as FIG. 5 along the line A-A in accordance with the present disclosure, and

(6) FIG. 5 shows another embodiment of an eccentric mount in a front view in accordance with the present disclosure.

DETAILED DESCRIPTION

(7) FIG. 1 shows a section of a control arm 1 for a wheel suspension in a motor vehicle. The control arm has a control arm body 2 made of a light metal material, for example, aluminum from the 5000 to 7000 series. The control arm body 2 has two side walls 3 parallel to each other, of which only a longitudinal portion of a side wall 3 of the control arm body 2 on the wheel carrier side is shown here.

(8) An elongated hole 4 for an eccentric mount 5 is provided in the side wall 3. The eccentric mount 5 is also shown in FIG. 2 to FIG. 5. The eccentric mount 5 has a base plate 6 with an elongated hole 7. An anchor body 8 extending around the edge of the elongated hole opening 7 is formed on the rear of the base plate 6. Two eccentric stops 10 projecting from the base plate 6 are arranged at the front or on the front side 9 of the base plate 6. The anchor body 8 is formed in a ring-like manner around the elongated hole 7. The anchor body 8 has a ring 11 extending around the elongated hole opening 7, which projects from the rear side 12 of the base plate 6.

(9) The eccentric mount 5 with the base plate 6, the anchor body 8 and the eccentric stops 10 are formed as a single piece of material.

(10) The eccentric mount 5 is inserted with the anchor body 8 into the elongated hole 4 of the side wall 3 and press-joined in the elongated hole 4. The outer contour of the anchor body 8 and the inner contour of the elongated hole 4 in the side wall 3 of the control arm body 2 are manufactured and geometrically matched to one another in such a way that the press joint creates a press fit on the circumferential joining surfaces.

(11) The eccentric stops 10 are formed by turned edge webs 13 on the outer circumference 14 of the base plate 6.

(12) The eccentric mount 5 is made of a steel material and is provided with a surface coating. In at least one embodiment of the present disclosure, the surface coating is a zinc or zinc flake coating.

(13) The press joint between the circumferential outer surface of the anchor body 8 and the inner surface of the elongated hole 4 in the side wall 3 creates a highly resilient force-fit joint. To increase the contact pressure, the anchor body 8 is able to be widened on the inside from the elongated hole opening 7 onwards. Optionally or additionally, the press joint is able to be supplemented by a form-fit joint. The anchor body 8 is able to be flanged, clinched or embossed at least in certain regions on the side 15 of the side wall 3 opposite the base plate 6. In at least one embodiment of the present disclosure, the anchor body 8 is able to pass through the elongated hole 4 in the side wall 3, at least in some regions, and is formed, for example flanged, clinched or embossed, on the side of the side wall 4 opposite the base plate 6.

(14) The illustration in FIG. 1 and FIG. 2 shows that the base plate 6 has a rectangular outer contour.

(15) The eccentric mount 5, as shown in FIG. 5, corresponds functionally to that described above. The base plate 6 has a circular outer contour.

(16) As able to be seen in FIG. 1, the base plate 6 lies with its rear side 12 on the outside of the side wall 3 and protrudes from the outer surface of the side wall 3. A recess is also able to be adapted to the outer geometry of the base plate 6 is provided in the side wall 3, in which recess the eccentric mount 5 with the base plate 6 is arranged.

(17) The foregoing description of some embodiments of the disclosure has been presented for purposes of illustration and description. The description is not intended to be exhaustive or to limit the disclosure to the precise form disclosed, and modifications and variations are possible in light of the above teachings. The specifically described embodiments explain the principles and practical applications to enable one ordinarily skilled in the art to utilize various embodiments and with various modifications as are suited to the particular use contemplated. Various changes, substitutions and alterations can be made hereto without departing from the spirit and scope of the disclosure.