PENDULUM SUPPORT WITH AXIAL BEARING ELEMENT

Description

[0001] The invention relates to a pendulum support. It relates to a pendulum support which, at least in the region of one of its axial ends, has at least one elastic bearing element extending in the direction of the longitudinal extension of the support arm of the pendulum support, which acts as an elastomeric axial spring.

[0002] Pendulum supports, also known as coupling rods, are usually strand- or rod-shaped, generally metallic profile elements used to connect components and / or assemblies in such a way that they can move relative to each other. They are used primarily in vehicle construction, for example, for coupling chassis components or for the elastic connection of the engine and transmission to the vehicle chassis.

[0003] For the purpose of elastic, i.e., movable coupling, the pendulum supports typically have an elastic bearing element, generally made of rubber, at each of their two axial ends. In connection with a coupling between the chassis of a vehicle, on the one hand, and its engine and transmission, on the other, it is known from the prior art to design a chassis-side bearing element of the pendulum support as a rubber element with its bearing axis extending in the axial direction, namely in the direction of the longitudinal extent of the profile element forming one support arm of the pendulum support. The axial bearing element (axial bearing) serves in particular to dampen mechanical vibrations caused by the engine and to acoustically decouple the vehicle body from the engine.

[0004] This axial bearing element in the form of a bushing is pushed onto a hollow cylindrical end section of the support arm of the pendulum support and fastened to the support arm by means of a screw guided through the hollow cylindrical section. The aforementioned screw is screwed into a threaded bore in the support arm, forming a force-locking connection between the elastomeric bearing element and the support arm. This threaded bore is formed in a section of the support arm of the pendulum support adjoining the hollow cylindrical section, or into a nut inserted into a recess in this adjacent section of the bearing arm. Between the screw head and the bearing element pushed onto the hollow cylindrical section, which is therefore an axial bearing in terms of its design, a disk-shaped element is also arranged as a stop disk for the elastic bearing element.

[0005] The coupling rod can be connected to the vehicle chassis at its axial end equipped with the axial bearing element via a fastening element formed on a bearing housing surrounding the axial bearing element or by this bearing housing itself. Due to its effect of decoupling the vehicle chassis from mechanical and acoustic vibrations, the bush-shaped bearing element formed at the relevant end of the pendulum support is also referred to as a comfort bush. A pendulum support designed and used in the manner described above is described, for example, in DE 197 31 128 C2.

[0006] A disadvantage of pendulum supports designed as described above is that a comparatively heavy screw is used to secure the axial bearing element. Alternatively, a riveted connection or a generally comparable fastening method is also possible. To create the hollow cylindrical section through which this screw or rivet is passed in order to screw it into the support arm to secure the bearing element, the support arm is usually manufactured using a gravity die casting process. After shaping, the profile element requires further processing; in particular, the threaded hole in the support arm for engagement with the screw must also be formed.However, providing suitable threaded holes in the design and the corresponding resources, especially the tools for creating the threaded holes, is considered comparatively expensive in view of the highly cost-optimized vehicle construction. The relatively high weight of a pendulum support designed in this way, caused by the metal screw, ultimately represents a cost factor from the perspective of energy consumption, i.e., fuel consumption in vehicles with an internal combustion engine. Finally, it should be noted that in the context of use in electric vehicles, which will be increasingly produced in the future, every additional gram of weight is considered disadvantageous in view of the much-discussed issue of the range of such vehicles.

[0007] In addition to the previously described design of a pendulum support with an axial bearing element, i.e. an axial bearing as a comfort bushing or comfort bearing, designs are also known in which the comfort bearing is enclosed by the axial end of the support arm, namely by an eye formed at this end. In this case, the comfort bearing is designed as a radial bearing, which also provides axial damping with respect to the support arm of the pendulum support when installed as intended, but is loaded in a radial direction from the perspective of the bearing. The disadvantage of such pendulum supports with a comfort bearing enclosed and therefore not directly connected to the support arm is that considerably more material is required for the support arm to ensure that the pendulum support can absorb the high forces caused by the leverage effect and that the eye, which is essentially elongated by these forces, is not overloaded.This also has the disadvantage of increasing the weight of the pendulum support.

[0008] Another pendulum support is known from US 2018 / 105028 A1.

[0009] The object of the invention is, in particular, to avoid the aforementioned disadvantages. To this end, an alternative design for a pendulum support is to be provided, for example, with regard to the attachment of an axial bearing element to the support arm and with regard to its connection to other components or assemblies.

[0010] This object is achieved by a pendulum support having the features of patent claim 1. Advantageous embodiments and / or further developments of the invention are given by the subclaims and in the following description.

[0011] A pendulum support with a support arm formed by a profile element and extending in an axial direction corresponding to its longitudinal extent between two axial ends, which support arm has at least one axial end a section adjoining a shoulder with a reduced cross-sectional area, onto which at least one elastic bearing element extending in the axial direction between two stop surfaces is pushed, wherein a, preferably first, stop surface is formed on the shoulder and a stop disc with a, preferably further, stop surface is formed by a disc-shaped metal element arranged on the side of the section with a reduced cross-section axially opposite the shoulder, is further developed according to the invention in particular in thatthat the support arm has a non-rotationally symmetrical cross-sectional area in its reduced-cross-section section and that the stop disc is attached directly to the reduced-cross-section section or is fixed to it in the axial direction by means attached directly to the section.

[0012] The pendulum support proposed to achieve the object consists in particular of the profile element forming the support arm, which extends in its longitudinal extent between two axial ends. For example, the profile element corresponds to the support arm. At each of its two axial ends, the support arm preferably has at least one elastic bearing element. The preferably metallic support arm has at least one section with a reduced cross-sectional area adjoining the shoulder at at least one axial end. At least one elastic bearing element (axial bearing), which preferably extends in the axial direction between two stop surfaces, is preferably pushed onto the latter section, which is also referred to in the description and in the patent claims in particular as a section with a reduced cross-section.

[0013] For the or for an axially extending bearing element, the or a preferably first stop surface is preferably formed on the shoulder, in particular in the transition area to the section with a reduced cross-section, and the or a preferably further stop surface is formed by the or a stop disc, namely by the or a disc-shaped metal element arranged on the side of the section with a reduced cross-section axially opposite the shoulder. For example, the metal element corresponds to the stop disc.With regard to the wording used above, according to which a stop surface is provided for the or for an axially extending bearing element, it is again pointed out at this point that, as stated at the beginning, at least one, preferably axial, i.e. at least one elastic bearing element is pushed onto the section with a reduced cross-section, which preferably extends axially with its bearing axis relative to the support arm. In a preferred embodiment of the pendulum support according to the invention provided in this respect, two elastic bearing elements are pushed onto the section of the support arm with a reduced cross-section, which preferably extend in the axial direction of the support arm and are preferably axially successive, and which are separated from one another by a partition wall arranged in a bearing housing surrounding these bearing elements.Advantageously, one of these bearing elements is arranged between the stop surface formed on the shoulder of the support arm and the partition, and the other bearing element is arranged between the partition and the stop disk. Preferably, both sides of this partition also form a stop surface for each of these bearing elements, which extend in particular in the axial direction. Preferably, the other stop surface for one of the bearing elements is formed on the shoulder, i.e., in particular at the transition of the support arm into its section with reduced cross-section, and for the other bearing element by the stop disk already mentioned several times.

[0014] The question of whether one or two axially extending elastic bearing elements, i.e., axial comfort bushings, separated from one another by a partition wall, are pushed onto the reduced-cross-section section is of secondary importance for the design of the reduced-cross-section region provided for in the invention. From a practical point of view, it plays a more important role with regard to the design and arrangement of the bearing housing surrounding the bearing element(s). The latter, in turn, namely the design of the bearing housing, depends, among other things, on whether the bearing housing, as preferably provided, is simultaneously designed as a fastening means for connecting the pendulum support, for example, to the chassis of a vehicle.Therefore, in the following, we will generally refer only to an axial (axially extending) bearing element or, synonymously, a comfort bushing. However, unless expressly stated otherwise, this always includes corresponding designs with two axial bearing elements. The same applies to the designs of the pendulum support characterized by the patent claims.

[0015] In the pendulum support proposed to solve the problem, the support arm, in its reduced-cross-section section, has, in particular, the cross-sectional area or a non-rotationally symmetrical cross-sectional area, i.e., in particular, a cross-sectional area deviating from a circular shape, wherein this section is preferably also made of solid material. Thus, unlike in the prior art, the reduced-cross-section section of the support arm adjacent to the aforementioned shoulder is preferably not a hollow cylindrical section. Preferably, the reduced-cross-section section has a cross-section made of solid material over its entire axial length.

[0016] In the pendulum support according to the invention, the aforementioned stop disc for forming the stop surface for the elastic or for an elastic, preferably rubber-made bearing element is therefore not fastened by means of a metal screw passed through the reduced-cross-section section and screwed into a threaded bore of the adjacent support arm section. Rather, the stop disc is either fastened, preferably without a screw, directly to the reduced-cross-section section, in particular to the section itself, or is fixed to it by means of means directly fastened to this section or the means with respect to or in the axial direction.

[0017] Preferably, the at least one elastic bearing element pushed axially onto the section with reduced cross-section is preloaded in the axial direction.

[0018] The cross-sectional area of ​​the reduced-cross-section support arm section is preferably a 2-fold rotationally symmetrical surface with a first surface axis and a second surface axis that is shortened relative to this first surface axis and runs orthogonally to it. The long surface axis of the cross-sectional area of ​​the reduced-cross-section section preferably extends across the entire width of the adjacent section of the support arm.

[0019] A surface is said to have rotational symmetry, for example, if, when the surface is rotated around its center, there is an angle of less than 360° at which the surface returns to its original appearance, i.e., it coincides with the image of its initial position, even though it is not rotated 360°. The surface is said to have n-fold rotational symmetry, depending on the number n of angles at which the surface assumes the same appearance when rotated around its center. Accordingly, a square, for example, has 4-fold rotational symmetry (each time it is rotated 90° around its center, the appearance of the surface is no longer distinguishable from that before the rotation), an equilateral triangle has 3-fold rotational symmetry, and a rectangle and an ellipse have 2-fold rotational symmetry.A special case of rotational symmetry is complete rotational symmetry, which is also called rotational symmetry and occurs when a circle rotates around its center and always has the same appearance at any angle of rotation.

[0020] However, in the design of the pendulum support according to the invention, the last-mentioned rotational symmetry is not present in particular in the cross-sectional area of ​​its section with a reduced cross-section. Rather, according to a preferred design, the cross-sectional area of ​​this section has the shape of a rectangle. Compared to a circular cross-section, this cross-sectional shape has, for example, a greater circumferential length, which is advantageous with regard to the method of fastening the stop disk favored within the scope of the invention. In a preferred design of the pendulum support according to the invention, the stop disk is fastened in a materially bonded manner to the end face of the free end of the section with a reduced cross-section projecting into it. The stop disk is preferably connected in a materially bonded manner to the support arm at the free axial end of the section with a reduced cross-section.The material-to-material fastening of the stop plate is carried out in particular by welding, more precisely, for example, by the FSW process (FSW = Friction Stir Welding), which is also known as friction stir welding.

[0021] Such a bonded connection also offers the advantage over a bolted connection that, experience shows, a weld seam generally does not fail suddenly in the event of a fault. Regular inspections of the hinged supports and the coupling points created by them can therefore potentially detect an impending failure in advance and prevent it by replacing the hinged support. In contrast, bolted connections are more frequently subject to sudden failure, which can lead to dangerous situations in individual cases, particularly in the preferred application area of ​​the hinged supports considered here in vehicle construction.

[0022] Using the FSW welding process, in which the materials around the actual welding area are heated only relatively slightly, a weld seam is drawn along the circumference of the reduced-cross-section section, connecting it to the stop disk axially pushed onto this section. Only by using this welding process can it be ensured that the material of the at least one elastic (axially oriented) bearing element previously pushed onto the reduced-cross-section section of the support arm is not damaged during the welding process.

[0023] However, the longer the weld seam produced using the aforementioned welding process, the more resilient and therefore the more reliable the connection created in this way between the support arm and the metal disc (stop disc) serving as the stop surface for the bearing element. In this respect, the transition from a circular cross-section to a rectangular cross-section for the section with reduced cross-section and the associated enlargement of the circumferential area proves to be advantageous. It is particularly preferred if the ratio between the edge lengths of the rectangular cross-section of the section with reduced cross-sectional area, namely the ratio between the short and long edges of the cross-sectional area, is a quarter or less, i.e. if the section with reduced cross-section is designed to be very flat.

[0024] Preferably, the stop disc is welded to the support arm by means of a weld seam running around the circumference of the reduced-cross-section section. Advantageously, the support arm has a rectangular cross-sectional area in the reduced-cross-section section.

[0025] Preferably, the length ratio between the short surface axis and the longer surface axis of the cross-sectional area of ​​the section of the support arm with reduced cross-section, which corresponds to the length ratio of the edge lengths of the rectangle in the case of a cross-sectional area forming a rectangle, is 1 / 4 (one quarter) or less.

[0026] Since the pendulum support according to the invention no longer requires a screw hole for securing the metal disc (stop disc) forming the stop surface and located at the outer free end of the reduced-cross-section section, this section can be formed without a hollow space, i.e., made of solid material. This, in turn, makes it possible to advantageously manufacture the support arm as an extruded aluminum part. The support arm can thus be formed as a lightweight component without the need for subsequent reworking.

[0027] The support arm is preferably made of extruded aluminum.

[0028] Without the requirement for an axially extending passage through the reduced-cross-section section of the support arm, other fastening methods or methods for securing the stop plate can be considered, depending on the intended use of the pendulum support, in addition to the welding method already mentioned. These will be discussed in more detail in connection with the presentation of exemplary embodiments. At this point, we would simply like to point out the possibility of a positive connection between the reduced-cross-section section of the support arm and the stop plate, for example, by riveting.

[0029] For example, the stop disc is connected to the support arm by riveting to the free axial end of the section with reduced cross-section that projects through the stop disc, in particular in a force-locking manner.

[0030] Advantageously, the support arm has an elastic bearing element at one axial end to form a joint bearing with a bearing axis running transversely to the axial direction of the longitudinal extension of the support arm.

[0031] In detail, the pendulum support designed according to the invention has the following advantages, particularly in connection with its preferred intended use of installation in motor vehicles for coupling between the vehicle chassis and the engine with the transmission. The pendulum support, with its very flat cross-sectional section of its support arm, requires less space in the vertical direction than a cross-sectional section (cross-sectional area in the shape of a rectangle) with a screw feedthrough. Due to low secondary spring rates, the support's mobility with regard to angular movements in the ±Z direction is improved. Since the reduced cross-sectional section does not require the transmission of any screw clamping force to secure the stop plate arranged at its free end, this section, i.e. the support arm, can be designed for correspondingly lower maximum component loads. The narrow rectangular cross-section of the reduced cross-sectional section has a significantly larger contour circumference than a circular cross-section (approximately twice the size of a circular cross-section with the same cross-sectional area) and can therefore be better bonded to the stop plate.The chassis-side construction does not require any steel components, so that all materials have a specific weight of less than 7.85 kg / dm3. The tooling costs for a coupling rod, i.e. the support arm of a pendulum support manufactured using the aluminum extrusion process, are only a fraction of those incurred for the production of rods using the casting process (gravity die casting process). If a material-to-material connection between the support arm and the stop plate is to be created, this is done in a final operation with the axial bearing elements already installed. Irrespective of this, no special post-processing - such as inserting a threaded hole - is required on the support arm itself after it has been shaped.

[0032] Possible embodiments of the invention will be explained below with reference to the drawings. The individual drawings show: Fig. 1 : a possible embodiment of the pendulum support according to the invention in a side view, Fig. 2 : the pendulum support according to Fig. 1 in a partially cut spatial representation, Fig. 3 : the pendulum support according to Fig. 1 in a section along the line DD, Fig. 4 : another possible design of the pendulum support with an alternative fastening form of the stop disc, Fig. 5 : another alternative for fastening the stop disc, Fig. 6 : a possibility of fixing the stop disc by fastening it to the support arm by means of a force connection, Fig. 7 : a state-of-the-art pendulum support in a side view, Fig. 8 : the pendulum support according to Fig. 7 in a section along the line AA.

[0033] First, based on the Figuren 7 and 8, which represent a pendulum support according to the state of the art, briefly on the basic structure of a generic, insofar as with the pendulum support according to the Fig. 1 comparable pendulum support. Accordingly, the pendulum support is a support arm 1 formed by a profile element, which has an elastic bearing element 2, 2', 3 at each of its axial ends 17, 18, whereby the bearing element 2, 2' on one side is, strictly speaking, two axially extending elastic bearing elements 2, 2'. The axial direction a corresponding to the longitudinal extent of the pendulum support, more precisely its support arm 1, is indicated in the figure. In one of the bearing elements, which is preferably made of rubber - in the Fig. 7 shown on the left - is an element through which a spherical bearing 3 is formed with a bearing axis 19 running transversely to the axial direction a of the longitudinal extension of the support arm 1. This is shown in the Fig. 8 , which shows the pendulum support again in a section along the line AA, can be seen particularly well.

[0034] On the other hand, in the drawings of the Figuren 7 and 8right, two axially extending elastic bearing elements 2, 2' are pushed onto a hollow cylindrical section with a reduced cross-section 5. The two axial bearing elements are separated from one another by a partition 10 arranged in a bearing housing 9 surrounding them. For the first bearing element 2, a stop surface 8 is formed on the shoulder 4 which the support arm 1 has in the region of its transition to the section 5 with a reduced cross-section. A second stop surface 12 is formed for this (first) bearing element 2 by the partition 10 of the bearing housing 9. This partition 10 simultaneously forms, on its rear side, i.e., on its other side, a stop surface 11 for the second axial bearing element 2'. A further stop surface 7 for this bearing element is formed by a disk-shaped metal element (stop disk 6) fastened axially to the end of the support arm.

[0035] As can be seen from the two figures ( Fig. 7 and Fig. 8 ), the stop disk 6, by means of which the two axial bearing elements 2, 2' are also fixed with regard to their axial position and, if necessary, preloaded, is fastened to the support arm 1 by means of a metal screw 22 which is passed through a passage formed in the section 5 of the support arm 1 with reduced cross-section and is screwed to the section of the support arm 1 adjoining section 5. This metal screw 22 results in a comparatively high weight in the pendulum support according to the prior art. It also makes it necessary, following the shaping of the support arm 1, to introduce an internal thread or a recess with a threaded nut inserted into this recess into the section of the support arm 1 adjoining section 5.

[0036] In contrast, the pendulum support is otherwise Figuren 7 and 8comparable, in the Fig. 1 In the embodiment of the pendulum support according to the invention shown, the elastic metal element (stop disk 6) serving as a stop surface for one of the two (shown on the right) axial bearing elements 2, 2' is firmly bonded to the reduced-cross-section section 5 of the support arm 1, wherein the reduced-cross-section area 5 also has a non-rotationally symmetrical cross-sectional shape. A metal screw, which increases the overall weight of the pendulum support, can be dispensed with due to the firmly bonded fastening, so that a hollow-cylindrical design of the reduced-cross-section area 5 is also not necessary, and the support arm 1 can be manufactured from aluminum by extrusion.The material-to-material fastening of the stop disc 6 to the support arm 1 is advantageous in that the section 5 of the support arm 1 with a reduced cross-section projecting into the stop disc 6 is very flat with a rectangular cross-sectional area 13 which, compared to a cylindrical shape, i.e. compared to a circular cross-sectional area, has a larger circumferential length for a weld seam 14 producing the material connection (see . Fig. 3 ).

[0037] The Fig. 1 shows this embodiment of the pendulum support according to the invention in a side view. This illustration shows the essential elements of the pendulum support, which is comparable to the prior art in terms of the mere presence of these elements: support arm 1, elastic bearing elements 2, 2', 3 at the axial ends 17, 18 of the support arm with axial bearing elements 2, 2' at the axial end 17, a spherical bearing 3 at the axial end 18, and stop disc 6.

[0038] The Fig. 2 shows this pendulum support again in a partially sectioned three-dimensional view. Here, the flat, reduced-cross-section section 5 with its rectangular cross-sectional area 13 and the surface axes 15, 16, as well as the length ratio of these surface axes 15, 16, are clearly visible. It is also clearly visible that the bearing housing 9 surrounding the bearing elements 2, 2' pushed onto the reduced-cross-section section 5 is simultaneously designed as a fastening means for the chassis-side attachment of the pendulum support.

[0039] The Fig. 3 finally shows the pendulum support according to the Fig. 1 again in a section along the line DD. The flat, cross-sectionally reduced section 5 of the support arm 1 of the pendulum support according to the invention, which is formed from the solid material, as it is shown in particular in the Fig. 2 and 3This particularly clearly shows that it is possible to manufacture the support arm 1, unlike previously usual, not by means of permanent mold casting, but rather to form it in a particularly advantageous manner as an aluminum extrusion. Furthermore, the pendulum support is designed in a similar way to that of the prior art. It also has a radially oriented spherical bearing 3 made of rubber at one axial end 18, whereas the support arm 1 has two axial elastic bearing elements 2, 2' at the other axial end 17, with a bearing body also made of rubber. In this pendulum support, too, the two axial bearing elements 2, 2' are separated from one another by the partition wall 10 of the bearing housing 9, which simultaneously forms stop surfaces 11, 12 for both bearing elements 2, 2'. The bearing housing 9 serves, as shown in the partially sectioned spatial representation of the Fig. 2 visible, at the same time as a fastening element for connecting the pendulum support equipped with the comfort bearing to a vehicle chassis.

[0040] The Figuren 4 bis 6 show further embodiments of the pendulum support according to the invention with a largely identical structure, in which, however, the stop disc 6 serving as the stop surface 7 and arranged axially at the end is alternatively fastened or fixed to the support arm 1. In all three embodiments, the reduced-cross-section section 5 of the support arm 1 projects into or through the stop disc 6.

[0041] In the training form according to the Fig. 4 The stop disc 6 is positively connected to the support arm 1. The connection is made by riveting the parts, whereby the section 5 of the support arm 1 with reduced cross-section slightly protrudes through the stop disc 6 and is slightly thickened in the section protruding through the metal element by appropriate processing, for example, by being flanged along its circumference.

[0042] In the Fig. 5 the stop disc 6, which here has a somewhat greater material thickness, is fastened by means of two screws 20 which are inserted transversely to the longitudinal extent of the support arm 1 into its section 5 with reduced cross-section.

[0043] In contrast, the stop disc 6 in the design according to the Fig. 6 It is not itself directly attached to the support arm 1. Rather, it is axially fixed thereto by extending through the reduced-cross-section section 5 of the support arm 1 and by two screws or rivets passing through the disc-shaped metal element transversely to the direction of extension of the support arm 1 as fastening means 21.

[0044] However, since the two last explained, in Fig. 5 and Fig. 6 Although the designs described above increase the overall weight of the pendulum support somewhat, these designs are certainly reserved for special applications. In this respect, it can be assumed that a material-to-material attachment of the stop disc 6, i.e., the disc-shaped metal element, to the support arm 1 will generally be preferred in practice. List of reference symbols

[0045] 1 support arm 2, 2' axial bearing element 3 bearing element (spherical plain bearing) 4 shoulder 5 reduced cross-section section 6 stop disc 7, 8 stop surface 9 bearing housing 10 partition wall 11, 12 stop surface 13 cross-sectional area 14 weld seam 15, 16 surface axis 17, 18 axial end 19 bearing axis 20 fastening means (screws) 21 fastening means 22 metal screw

Claims

1. Pendulum support with a support arm (1) formed by a profile element, extending in an axial direction (a) corresponding to its longitudinal extension between two axial ends (17, 18), which has, at at least one axial end (17, 18), a section (5) adjoining a shoulder (4) with a reduced cross-sectional area (13), onto which at least one elastic bearing element (2, 2') extending in the axial direction (a) between two stop surfaces (7, 8) is pushed, wherein a stop surface (8) is formed at the shoulder (4) and a stop washer (6) with a stop surface (7) is formed by a disc-shaped metal element arranged on the axially opposite side of the cross-sectionally reduced section (5) to the shoulder (4), characterised in that the support arm (1) has a non-rotationally symmetrical cross-sectional surface (13) in its cross-sectionally reduced section (5) and that the stop washer (6) is directly attached to the cross-sectionally reduced section (5) or is fixed to it in the axial direction (a) by means of means (20, 20', 21, 21') attached directly to the section (5).

2. Pendulum support according to claim 1, characterised in that two elastic bearing elements (2, 2') extending in the axial direction (a) of the support arm (1) are pushed onto the cross-sectionally reduced section (5) of the support arm (1), which are separated from each other by a partition (10) arranged in a bearing housing (9) surrounding the bearing elements (2, 2') and in that one of these bearing elements (2) is arranged between the stop surface (8) formed on the shoulder (4) of the support arm (1) and the partition (10) and the other bearing element (2') is arranged between the partition (10) and the stop washer (6), wherein a stop surface (11, 12) is also formed by both sides of the partition (10) for each of the two bearing elements (2, 2') extending in the axial direction (a).

3. Pendulum support according to claim 1 or 2, characterised in that the at least one elastic bearing element (2, 2') pushed axially onto the cross-sectionally reduced section (5) is pretensioned in the axial direction (a).

4. Pendulum support according to claim 1 or 2, characterised in that the support arm (1) has, at an axial end (18), an elastic bearing element for forming a joint bearing (3) with a bearing axis (19) running transversely to the axial direction (a) of the longitudinal extension of the support arm (1).

5. Pendulum support according to claim 1 or 4, characterised in that the support arm (1) in the cross-sectionally reduced section (5) has a 2-fold rotationally symmetrical cross-sectional surface (13) with a first surface axis (15) and a second surface axis (16) shortened relative to the first surface axis (15), running orthogonally thereto.

6. Pendulum support according to claim 5, characterised in that the support arm (1) has a rectangular cross-sectional area (13) in the cross-sectionally reduced section (5).

7. Pendulum support according to claim 5 or 6, characterised in that the length ratio between the short surface axis (16) and its counterpart the longer surface axis (15) of the cross-sectional area (13) of the cross-sectionally reduced section (5) of the support arm (1), which corresponds to the length ratio of the edge lengths of the rectangle in the case of a cross-sectional area forming a rectangle, is 1 / 4 or less.

8. Pendulum support according to claim 1 or 6, characterised in that the cross-sectionally reduced section (5) has a cross-section made of solid material over its entire axial length.

9. Pendulum support according to claim 1 or 6, characterised in that the stop washer (6) is integrally connected to the support arm (1) at the free axial end of the cross-sectionally reduced section (5).

10. Pendulum support according to claim 9, characterised in that the stop washer (6) is welded to the support arm (1) by means of a circumferential weld seam (14) on the circumference of the cross-sectionally reduced section (5).

11. Pendulum support according to claim 1 or 6, characterised in that the stop washer (6) is rigidly connected to the support arm by riveting with the free axial end of the cross-sectionally reduced section (5) protruding through the stop washer (6).

12. Pendulum support according to any one of claims 1 to 11, characterised in that the support arm (1) is made from extruded aluminium.