Longeron for the rear part of a motor vehicle and rear part of a motor vehicle

Abstract

The present invention relates to a longitudinal beam (1) for the rear section of a motor vehicle, the longitudinal beam having a connecting region (5) in which a support for a vibration damping device configured to buffer vibrations of the vehicle's wheels can be fixed to the longitudinal beam. The connecting region has a plurality of fixing points (9, 10, 11, 12) for connecting elements, each fixing point having a corresponding receiving opening into which a corresponding section of one of the connecting elements can be inserted to fix the support to the connecting region. The central axis of each receiving opening extends substantially in the transverse direction (y) of the longitudinal beam. The longitudinal beam has a support element (17) disposed above each fixing point in the vertical direction (z) of the longitudinal beam, and the vibration damping device can be supported on the support element in the travel direction. The invention also relates to a rear section of a motor vehicle comprising at least one such longitudinal beam.

Description

Technical Field

[0001] This invention relates to a longitudinal beam for the rear section of a motor vehicle, the longitudinal beam having a connecting region. In this connecting region, a support for a vibration damping device configured to cushion vibrations from the vehicle's wheels can be fixed to the longitudinal beam. The connecting region has a plurality of fixing points for connecting elements. These fixing points have corresponding receiving openings into which a corresponding section of one of the connecting elements can be inserted to fix the support in the connecting region. Here, the central axis of each receiving opening extends substantially in the transverse direction of the longitudinal beam. The invention also relates to a rear section of a motor vehicle having at least one such longitudinal beam. Background Technology

[0002] In the Volvo XC90, a vehicle manufactured by Volvo, a support bearing for the shock absorber is bolted to the body panel of the longitudinal beam at four fixed points in the rear of the vehicle. This support bearing serves as a support for the shock absorber of the rear wheel of the vehicle. For this purpose, the support bearing has two overlapping mounting holes on each side of the shock absorber, arranged vertically along the longitudinal beam. Bolts screwed into the body panel pass through these mounting holes. From these mounting holes, with reference to the travel direction or operating direction of the shock absorber, the lever arm or support arm of the support bearing extends obliquely upwards and outwards from the vehicle. Here, the support arm reaches the upper end region of the shock absorber. In this upper end region located above the longitudinal beam, the shock absorber is surrounded by the retaining area of ​​the support bearing.

[0003] This structure means that the force introduced into the support bearing during shock absorber operation needs to be transmitted or transferred to a fixed location via a lever arm or support arm, where the support bearing is bolted to the body panel of the longitudinal beam. This is disadvantageous in terms of the force introduced into the longitudinal beam via the fixed location during shock absorber operation.

[0004] The construction of the support bearings further results in poor accessibility to the bolts screwed into the body panels of the longitudinal beams in the transverse direction and therefore parallel to the vehicle's transverse axis, even though these bolts are located below the upper end area of ​​the shock absorber. In this configuration, the shock absorber is supported on the wheel arches, which are fixed to the longitudinal beams, on the upper side. This is disadvantageous regarding the robustness of the shock absorber's support in the vertical direction, or in its working or travel direction.

[0005] Furthermore, the support bearings used in the Volvo XC90 are complex to manufacture and assemble. Summary of the Invention

[0006] The object of the present invention is to realize a longitudinal beam of the type mentioned at the beginning, which enables a low-complexity and robust fixation of the vibration damping device; and to provide a rear section for a motor vehicle having at least one such longitudinal beam.

[0007] The objective is achieved according to the invention by means of a longitudinal beam for the rear section of a motor vehicle and by means of a rear section of a motor vehicle.

[0008] The longitudinal beam for the rear section of a motor vehicle according to the invention has a connecting region. A support for a vibration damping device can be fixed to the longitudinal beam in this connecting region. The vibration damping device is configured to buffer vibrations from the wheels of the motor vehicle. The connecting region has multiple fixing points for connecting elements. Each fixing point has a corresponding receiving opening into which a corresponding section of one of the connecting elements can be inserted to fix the support in the connecting region. The central axis of each receiving opening extends substantially in the transverse direction of the longitudinal beam. The longitudinal beam has a support element disposed above the fixing points in the vertical direction of the longitudinal beam. The vibration damping device can be supported on this support element in the travel direction. The support element is integrally formed with the longitudinal beam as a platform formed on the side wall of the longitudinal beam.

[0009] The travel direction or operating direction of a vibration damper relates to the direction in which its components move relative to each other during operation, in order to cushion vibrations that occur or are generated due to the movement of the wheels. Therefore, if the vibration damper is fixed to the longitudinal beam in the connection area by means of supports, then the vibration damper is supported on a support element in that direction. This vertical support of the damper (and therefore, substantially parallel to the vehicle's vertical axis in the mounting position of the longitudinal beam in the motor vehicle) allows the loads that occur during the operation of the vibration damper to be received very well by the longitudinal beam.

[0010] This is particularly true because the support elements of the longitudinal beam can bear loads exceptionally well, thus resulting in very good support in the vertical direction of the longitudinal beam and correspondingly in the travel direction of the damper. Furthermore, the support for the damper in, for example, wheel covers or the like, which can be fixed to the longitudinal beam in a motor vehicle, can be omitted. This is advantageous regarding the low-complexity fixing of the damper.

[0011] Because the support elements are provided via the longitudinal beams, structural members that would normally be present in the rear of the vehicle can also be used to support the damping device in its working direction, or travel direction. This achieves a low-complexity yet robust fixation of the damping device to the longitudinal beams.

[0012] Furthermore, by setting each fixing part below the support element belonging to the longitudinal beam, it is possible to ensure that the receiving opening of each fixing part can be very well reached or accessible for the assembly of the connecting element. In each receiving opening, the corresponding section of the connecting element can be inserted substantially parallel to the transverse axis of the vehicle in the transverse direction of the longitudinal beam and therefore in the installation position of the longitudinal beam.

[0013] The support element is constructed as a single piece with the longitudinal beam. Therefore, it is not even necessary to connect a separate component to the longitudinal beam to provide the support element. More precisely, the support element is formed directly together with the longitudinal beam during its manufacture.

[0014] The support elements can be supplied as a single piece with the longitudinal beams, with particularly low complexity, if the longitudinal beams are constructed as cast components. Here, aluminum alloys or steel can be used as materials, in particular.

[0015] Because the longitudinal beams are cast components, the support elements can be supplied as a single piece with the longitudinal beams, making it particularly simple. Therefore, no additional components are needed to support the vibration damping device in the vertical direction, or the direction of travel. More precisely, the support elements are an integral part of the longitudinal beams. Furthermore, this contributes to the high load-bearing capacity of the support elements.

[0016] Preferably, the support element has a plate-shaped central region, which is disposed between the fixing points in the longitudinal direction of the longitudinal beam. Therefore, when the vibration damping device is fixed to the longitudinal beam in the connection area by means of supports, each fixing point can also be well reached.

[0017] Preferably, a through-opening is formed in the central region, through which a protrusion on the end side of the vibration damping device can be inserted. In this way, the vibration damping device can be positioned very simply and reliably, and then during assembly, the vibration damping device is fixed to the longitudinal beam in the connection area by means of a support or retaining device. Furthermore, by inserting the protrusion into the through-opening, the assembly of the vibration damping device can be achieved particularly simply, because a certain pre-positioning of the vibration damping device can be achieved by inserting the protrusion into the through-opening.

[0018] Preferably, the receiving openings for each fixing point are formed in corresponding receiving bushings, which extend from the sidewalls of the longitudinal beam in the transverse direction. In this way, a particularly robust and load-bearing fixing point is provided in the form of receiving bushings. Thus, a very load-bearing fixing of the support can also be achieved, and the vibration damping device can be particularly load-bearingly fixed on the longitudinal beam via the receiving bushings by means of the support, in that the sections of each connecting element are inserted into the receiving bushings.

[0019] Preferably, the receiving bushing is integrally formed with the longitudinal beam. Therefore, the receiving bushing can also be provided directly during the manufacture of the longitudinal beam with particularly low complexity.

[0020] In particular, the receiving bushing can have corresponding threads. Therefore, it is possible that bolts are screwed into the threads of the corresponding receiving bushing as connecting elements for securing the support in the connection area and thus for mounting the vibration damping device onto the longitudinal beam. This can facilitate a particularly load-bearing and simultaneously detachable connection between the support and the longitudinal beam when needed.

[0021] Preferably, the support element has plate-shaped edge regions. Here, a first edge region supports a first receiving bushing, and a second edge region supports a second receiving bushing. In this way, the edge regions of the support element are positioned very close to the fixing point. Due to this compact configuration of the connection area for the support (which is configured to fix the vibration damper to the longitudinal beam), very good force introduction into the longitudinal beam can be achieved during the operation of the vibration damper.

[0022] In particular, the edge region of the first plate shape of the support element can be integrally formed with the first receiving bushing, and the edge region of the second plate shape of the support element can be integrally formed with the second receiving bushing. This establishes a particularly tight composite between the support element and the receiving bushing, which contributes to high load-bearing capacity. This is advantageous regarding the very rigid connection of the support to the longitudinal beam, and thus regarding the very good fixation of the vibration damping device to the longitudinal beam.

[0023] In particular, below the corresponding edge region, at least two of the receiving bushings can be arranged overlapping in the vertical direction of the longitudinal beam. This also contributes to the exceptionally high load-bearing capacity of the connection area used for the support.

[0024] The at least two receiving bushings that overlap in the vertical direction of the longitudinal beam can be connected to each other, particularly in the contact area, or transition to each other in the contact area. Therefore, the receiving bushings support each other, which is advantageous for a robust or load-bearing fixation of the support on the longitudinal beam.

[0025] Preferably, at least one of the receiving bushings is supported on the sidewall of the longitudinal beam by means of at least one rib. This is also advantageous in terms of the load-bearing capacity of the at least one receiving bushing. Furthermore, in the preferred configuration where the longitudinal beam is a cast component, the at least one rib can also be provided simply and with low complexity.

[0026] The rear section of a motor vehicle according to the invention has at least one longitudinal beam according to the invention. Therefore, the longitudinal beam, which is originally to be installed in the rear section of a motor vehicle and has support elements, can be used to support the damping device in the vertical direction of the longitudinal beam or in the travel direction of the damping device.

[0027] Preferably, the rear section includes wheel arch elements fixed to the longitudinal beam. Here, the support element of the longitudinal beam is farther from the upper end region of the wheel arch element in the direction of the vehicle's vertical axis or in the vertical direction of the longitudinal beam than from the lower end region of the wheel arch element. This results in the fixing points located below the support elements in the vertical direction of the longitudinal beam also being located relatively far below within the wheel arch, which is partially defined by the wheel arch element. Therefore, the fixing points can be accessed particularly well during the assembly and / or disassembly of the damping device.

[0028] In particular, it can be specified that even when the outer components of the wheel cover, especially the outer metal plate of the wheel cover, are fixed to the wheel cover elements, the fixing points are directly accessible to a tool extending in the lateral direction, parallel to the vehicle's transverse axis, in the transverse direction, by means of which the connecting elements can be assembled or disassembled. Preferably, only the wheel needs to be removed so that the connecting elements can be easily reached by a tool extending in the lateral direction and connected in the lateral direction, especially a screwing tool.

[0029] Preferably, in the rear section, the damping device is fixed to the longitudinal beam in the connection area by means of a bracket. In this way, the damping device is supported very susceptibly on the components of the longitudinal beam in the vertical direction of the longitudinal beam and thus substantially parallel to the vertical axis of the vehicle, i.e., on the support elements of the longitudinal beam.

[0030] The advantages and preferred embodiments described regarding the longitudinal beams according to the present invention also apply to the rear section according to the present invention, and vice versa.

[0031] Other features of the invention are derived from the accompanying drawings and the description thereof. The features and combinations thereof mentioned above in the specification, as well as those subsequently mentioned in the description thereof and / or shown separately in the drawings, may be applied not only in the correspondingly described combinations, but also in other combinations or individually. Attached Figure Description

[0032] The invention will now be explained in more detail with the aid of preferred embodiments and reference to the accompanying drawings. The drawings are as follows:

[0033] Figure 1 A schematic perspective view shows the longitudinal beams used in the rear section of a motor vehicle configured as a passenger car.

[0034] Figure 2 Display by Figure 1 The longitudinal beams and another correspondingly formed longitudinal beam in their respective installation positions or in their installation positions in the rear part of the motor vehicle;

[0035] Figure 3 The button displayed in the area of ​​the vehicle's wheel cover Figure 1 The longitudinal beam, showing the connection area of ​​the longitudinal beam for fixing the support for the shock absorber;

[0036] Figure 4 Display by Figure 3 The longitudinal beam, wherein the damper is fixed to the longitudinal beam in the connection area by means of supports; and

[0037] Figure 5 Display the longitudinal beam and its fixing point. Figure 4 A partially sectional view of the vibration damper on the longitudinal beam. Detailed Implementation

[0038] exist Figure 1 The longitudinal beam 1 for the rear of a motor vehicle is schematically shown in perspective view. The longitudinal beam 1 is currently used in the rear section 2 of the motor vehicle, where multiple components of the rear section 2 are located. Figure 2 The image is displayed in perspective.

[0039] exist Figure 1 The longitudinal beam 1 shown extends substantially in the direction of the vehicle's longitudinal axis x, which, along with the vehicle's vertical axis z and lateral axis y, lies in... Figure 1 The coordinate system is used to describe this. Correspondingly, the rear end region 3 of the longitudinal beam 1 is closer to the rear of the vehicle, while the front end region 4 of the longitudinal beam 1 is further away from the rear of the vehicle.

[0040] The longitudinal beam 1 has a connecting area 5, which serves as a support for a bearing 6, in which the bearing... Figure 4 Described in perspective and in Figure 5 Described in half. Support bearing 6 is used to mount the vibration damping device, or damper 7, onto the longitudinal beam 1 (see...). Figure 4 and Figure 5 ).

[0041] Shock absorber 7 is configured to buffer vibrations that occur during the movement of the vehicle's wheels (currently the rear wheels). A portion of the wheel bracket 8 for the rear wheels of the vehicle is located within... Figure 4 Partially shown in the middle. The vibration of the unshown wheel of the motor vehicle, which can be fixed to the wheel bracket 8, is damped by means of the shock absorber 7 in a manner known per se.

[0042] Connection area 5 includes multiple fixed parts, which are currently configured as receiving bushings 9, 10, 11, and 12, integrally formed with the longitudinal beam 1. This is especially evident from common observations. Figure 4 and Figure 5 As can be seen, in order to fix the support bearing 6 for the shock absorber 7 to the longitudinal beam 1, the connecting element in the form of bolt 13 can be screwed into the corresponding receiving opening of the receiving bushing 9, 10, 11, 12.

[0043] exist Figure 4 The bolt head 14 of bolt 13 is visible in the image. Figure 4 For the sake of overall overview, only some of the bolt heads 14 are marked with reference numerals. The corresponding bolt 13, in the form of a corresponding shank 15, is screwed into a corresponding one of the receiving openings, which are formed in the receiving bushings 9, 10, 11, and 12.

[0044] Especially through joint observation Figure 1 and Figure 5 Relatedly, the receiving opening is configured in a well-like shape or as a corresponding blind hole, with the central axis of the receiving opening extending substantially in the transverse direction of the longitudinal beam 1 and therefore substantially parallel to the vehicle's transverse axis y in the mounting position of the longitudinal beam 1. A support in the form of a bearing 6 is thus screwed to the longitudinal beam 1 in the direction of the vehicle's transverse axis y; this support is used to fix the shock absorber 7 to the longitudinal beam 1.

[0045] The receiving bushings 9, 10, 11, and 12 are currently constructed as a single piece with the longitudinal beam 1, since the longitudinal beam 1 is preferably constructed as a cast component.

[0046] Depend on Figure 1 It can also be seen that receiving bushings 9, 10, 11, and 12 extend from the side wall 16 of the longitudinal beam 1 in the transverse direction of the longitudinal beam 1 and thus parallel to the vehicle's transverse axis y.

[0047] In the vertical direction of the longitudinal beam 1 and therefore parallel to the vehicle's vertical axis z, above the fixing points for supporting the bearing 6 provided by receiving bushings 9, 10, 11, and 12, a support element 17 is provided or constituted in the connection area 5. The support element 17, which is constructed in the form of a platform formed on the side wall 16, is also currently constructed as a single piece or in one piece with the longitudinal beam 1.

[0048] The support element 17 is used to support the shock absorber 7 in the vertical direction of the longitudinal beam 1 and therefore substantially parallel to the vehicle's vertical axis z. Figure 5 The vertical axis z of the vehicle also indicates the travel direction or working direction of the shock absorber 7. If the shock absorber 7 is used to buffer vibrations that occur or are generated due to the movement of the vehicle wheels, the components of the shock absorber 7 move relative to each other, for example, in the form of the piston rod and cylinder of the shock absorber 7, in the travel direction or working direction.

[0049] With the help of Figure 2 The connection from the longitudinal beam 1 to the rear section 2 of the motor vehicle should be explained, wherein components or parts are arranged in an exemplary and non-limiting manner. Figure 2 As shown in the diagram. Therefore, a connecting member 18 is fixed to the front end region 4 of the longitudinal beam 1, which is located in the passenger compartment area of ​​the motor vehicle.

[0050] In contrast, on the rear end region 3 of the longitudinal beam 1 (see...) Figure 1 The rear longitudinal beam 19 is connected to the vehicle's crumple zone, which is currently part of the vehicle's crumple zone, which is located in the area of ​​the rear section 2.

[0051] The rear crossbeam 21 and the front crossbeam 22 extend laterally to the longitudinal beam 1 and to another longitudinal beam 20 opposite to it in the direction of the vehicle's transverse axis y. Figure 1 The longitudinal beam 1 shown is similarly constructed. Furthermore, on the longitudinal beams 1 and 20, and on one of the corresponding crossbeams 21 and 22, multiple bottom metal plates 23 that secure the rear section 2 are currently fixed. Figure 2 For the sake of overall overview, only a portion of the bottom metal plate has attached reference numerals.

[0052] The rear longitudinal beam 24 is fixed to the end of the rear side of the longitudinal beam 20 and is also part of the crumple zone of the vehicle. The rear longitudinal beam is preferably constructed as a metal plate component with a shell structure, just like the other rear longitudinal beam 19.

[0053] The rear longitudinal beams 19 and 24, belonging to the crumple zone, are directly connected to the longitudinal beams 1 and 20, which are cast components, towards the rear. Between the rear longitudinal beams 19 and 24, a luggage compartment bottom 25 is currently provided. As shown in the present exemplary embodiment, the luggage compartment bottom 25 may have a slot for storing items such as a spare tire, or, in the case of an electric or hybrid vehicle, for storing a charging cable or the like.

[0054] Depend on Figure 2 Furthermore, it is clearly visible that a wheel cover element, which is a wheel cover metal plate 26, is fixed on the left longitudinal beam 1 in the direction of travel of the motor vehicle. This wheel cover element is also partially located... Figure 3 This is shown in the text. Especially by joint observation... Figure 2 and Figure 3 Relatedly, it can be seen that the support element 17 is relatively far from the upper end region 27 of the wheel cover metal plate 26 in the direction of the vehicle's vertical axis z.

[0055] Currently, the support element 17 is configured as a platform formed onto the sidewall 16 of the longitudinal beam 1, with the support element located at the lower end region 28 and even nearly at the upper end region 27 of the wheel cover metal plate 26 in the direction of the vehicle's vertical axis z. Therefore, when the wheel is removed from the wheel bracket 8 (see...), Figure 3 and Figure 4 The form is such that the threaded or fixed parts of the receiving bushings 9, 10, 11, and 12 can be very well approached.

[0056] Preferably, under the current specification, even when the wheel cover is completed by means of an undisplayed external wheel cover metal plate or similar wheel cover element mounted from the outside of the vehicle to the wheel cover metal plate 26, the bolt head 14 of the bolt 13 remains accessible once the wheel is removed or taken off from the wheel bracket 8.

[0057] It can be specifically stipulated here that the bolt head 14 is accessible by means of a tightening tool extending in the direction of the vehicle's transverse axis y, in such a way that the tightening tool approaches the corresponding bolt head 14 in the direction of the vehicle's transverse axis y.

[0058] The good accessibility of bolts 13 and receiving bushings 9, 10, 11, 12 is particularly beneficial for the very simple assembly or fixation of the support bearing 6 in the connection area 5, and thus also facilitates the fixation of the damper 7 on the longitudinal beam 1, and at the same time facilitates the corresponding disassembly.

[0059] Especially through joint observation Figure 1 and Figure 3 As can be seen, the support element 17 has a plate-shaped central region 29, which is disposed in the longitudinal direction of the longitudinal beam 1 and therefore in the installation position of the longitudinal beam 1 parallel to the vehicle longitudinal axis x between two receiving bushings 9, 10 and two other receiving bushings 11, 12, the two receiving bushings being disposed overlapping in the vertical direction, and the two other receiving bushings being opposite to the two receiving bushings 9, 10 in the longitudinal direction of the longitudinal beam 1.

[0060] The central region 29 currently has a through opening 30, through which the protrusion 31 on the end side of the damper 7 is introduced when the damper 7 is fixed to the longitudinal beam 1 in the connecting region 5 by means of the support bearing 6 (see Figure 4 and Figure 5 ).

[0061] In the direction of the vehicle's longitudinal axis x, and therefore in the longitudinal direction of the longitudinal beam 1, the corresponding plate-shaped edge regions 32, 33 immediately following the support element 17 on the central region 29. Especially by... Figure 3 Relatedly, it can be seen that the central region 29 of the plate-shaped support element 17 can be set slightly higher than the adjacent edge regions 32, 33 in the vertical direction of the longitudinal beam 1 and therefore parallel to the vertical axis z of the vehicle.

[0062] In other words, as shown in the present exemplary embodiment, the central region 29 can be shaped in the vertical direction of the support element 17 as a raised portion of the support element 17. In the upward region of this raised portion of the support element 17, in the central region 29, the upper abutment member 34 of the shock absorber 7 abuts against the lower side of the support element 17 (see...). Figure 5The tenon-shaped protrusion 31 extends upward from the abutment member 34 through the through opening 30, as is particularly evident in this... Figure 4 and Figure 5 visible.

[0063] Especially by Figure 3 Combination Figure 5 It is clearly visible that the edge region 32 of the first plate shape and the upper receiving bushing of the two receiving bushings 9 and 10 are integrally formed, and these two receiving bushings are arranged below the first edge region 32 in the vertical direction of the longitudinal beam 1. Furthermore, by Figure 3 Especially in combination Figure 5 It is clearly visible that the two receiving bushings 9 and 10, located below the first edge region 32, transition to or connect with each other in the contact region 35.

[0064] Depend on Figure 3 and Figure 4 It can also be seen that the lower receiving bushing 10, one of the two receiving bushings 9 and 10 located below the first edge region 32, is supported on the side wall 16 of the longitudinal beam 1 by means of a rib 36. The rib 36 extends in the vertical direction of the longitudinal beam 1.

[0065] The description of the two receiving bushings 9 and 10, which are integrally formed with the first edge region 32, applies in a similar manner to the two additional receiving bushings 11 and 12, which are integrally formed with the second edge region 33 and also transition into each other in the contact region 37. Furthermore, as shown in the present exemplary embodiment, the lower receiving bushing 12 of the two additional receiving bushings 11 and 12 located below the second edge region 33 can also be supported on the side wall 16 of the longitudinal beam 1 by means of a rib 38. Currently, the rib 38 also extends in the vertical direction of the longitudinal beam 1.

[0066] Depend on Figure 4 Especially in combination Figure 5 As can be seen, the support bearing 6 has a plate component 39, in which a through opening is formed for the shank 15 of the bolt 13 (see...). Figure 5 The support bearing 6 rests against the end sides of the receiving bushings 9, 10, 11, and 12 via the plate component 39. Additionally, the support bearing 6 has a retaining member 40 that partially surrounds or encircles the upper end region of the damper 7. The plate component 39 and the retaining member 40 are currently constructed as a single piece.

[0067] The structure of the support bearing 6 described herein facilitates a very rigid and load-bearing fixation of the support bearing 6 on the longitudinal beam 1 in the connection area 5 by means of bolts 13 screwed into the receiving openings of the receiving bushings 9, 10, 11, and 12. This support bearing serves as a support for the vibration damper 7. Therefore, the vibration damper 7 can also be very load-bearingly fixed in the connection area 5 on the longitudinal beam 1 by means of the support bearing 6.

[0068] Depend on Figure 5 It can also be seen that the receiving bushings 9, 10, 11, and 12 currently have corresponding threads 41 in which mating threads engage, the mating threads being formed on the shank 15 of the bolt 13.

[0069] In addition, especially by Figure 5 As can be seen in the cross-sectional view, the longitudinal beam 1 is very compact in the connection area 5 and is constructed of many materials, thus supporting the very rigid connection of the bearing 6 on the longitudinal beam 1.

[0070] In addition, by Figure 5 It can be seen that the longitudinal beam 1 is reinforced in the connection area 5 by multiple ribs, which are formed by the side wall 16 of the longitudinal beam 1 as a single piece.

[0071] Especially when the longitudinal beam 1 is preferably configured as a cast component, a structural node is provided by the longitudinal beam, at which the shock absorber 7 can be securely and load-bearingly fixed by means of a support in the form of a bearing 6. Here, the support element 17 ensures geometric support of the shock absorber 7 in the vertical direction or in the direction of the vehicle's vertical axis z.

[0072] Therefore, currently, the body-side connection of the shock absorber 7 is integrated into the longitudinal structure of the rear section 2, which was originally intended to be installed therein, i.e., integrated into the longitudinal beam 1, which is constructed in a very compact and robust manner. Here, the shock absorber 7 is fixed to the longitudinal beam 1 in the transverse direction of the longitudinal beam 1 and thus substantially parallel to the vehicle's transverse axis y, preferably by bolting as exemplarily described above.

[0073] Therefore, especially in reference Figures 1 to 5 In the exemplary embodiment, the longitudinal beam 1 forms a vehicle body structural node, which enables a very robust and load-bearing side fixation of the shock absorber 7, or in other words, enables the connection of the shock absorber to the corresponding side on the longitudinal beam 1.

[0074] List of reference numerals

[0075] 1 Longitudinal Beam

[0076] 2 Rear section

[0077] 3 end regions

[0078] 4 end regions

[0079] 5 connection areas

[0080] 6 Support Bearings

[0081] 7 shock absorbers

[0082] 8 wheel brackets

[0083] 9. Receiving bushing

[0084] 10 Receiving Bushing

[0085] 11 Receiving Bushing

[0086] 12 receiving bushing

[0087] 13 bolts

[0088] 14 bolt heads

[0089] 15 poles

[0090] 16 sidewalls

[0091] 17 Supporting Elements

[0092] 18 connecting components

[0093] 19 longitudinal beams

[0094] 20 longitudinal beams

[0095] 21 crossbeams

[0096] 22 crossbeams

[0097] 23 Bottom metal plate

[0098] 24 longitudinal beams

[0099] 25 Luggage compartment bottom

[0100] 26 wheel cover metal plate

[0101] 27 End Region

[0102] 28 end regions

[0103] 29 Central Region

[0104] 30 through opening

[0105] 31 protrusions

[0106] 32 edge areas

[0107] 33 Edge Area

[0108] 34 Attached components

[0109] 35 contact area

[0110] 36 ribs

[0111] 37 Contact Area

[0112] 38 ribs

[0113] 39-plate components

[0114] 40 retaining components

[0115] 41 thread

[0116] x Vehicle longitudinal axis

[0117] y vehicle transverse axis

[0118] z Vehicle vertical axis

Claims

1. A longitudinal beam (1) for the rear section (2) of a motor vehicle, the longitudinal beam having a connecting region (5) in which a support (6) for a vibration damping device (7) can be fixed to the longitudinal beam (1), the vibration damping device being configured to buffer the vibration of the wheels of the motor vehicle, the connecting region (5) having a plurality of fixing portions (9, 10, 11, 12) for connecting elements (13), each fixing portion (9, 10, 11, 12) having a corresponding receiving opening in which a corresponding segment (15) of one of the connecting elements (13) can be inserted to fix the support (6) in the connecting region (5), and the central axis of each receiving opening extending substantially in the transverse direction (y) of the longitudinal beam (1), characterized in that, The longitudinal beam (1) has a support element (17) which is arranged above each fixed part (9, 10, 11, 12) in the vertical direction (z) of the longitudinal beam (1), and the vibration damping device (7) can be supported on the support element in the stroke direction. The support element (17) is formed as a platform on the side wall (16) of the longitudinal beam (1) and is integrally formed with the longitudinal beam (1).

2. The longitudinal beam (1) according to claim 1, characterized in that, The longitudinal beams are cast components.

3. The longitudinal beam (1) according to claim 1 or 2, characterized in that, The support element (17) has a plate-shaped central region (29) which is located between the fixed parts (9, 10, 11, 12) in the longitudinal direction (x) of the longitudinal beam (1).

4. The longitudinal beam (1) according to claim 3, characterized in that, A through opening (30) is formed in the central region (29), in which a protrusion (31) on the end side of the vibration damping device (7) can be introduced.

5. The longitudinal beam (1) according to claim 1 or 2, characterized in that, The receiving openings of each fixed part are formed in the corresponding receiving bushings (9, 10, 11, 12), which extend from the side wall (16) of the longitudinal beam (1) in the transverse direction (y).

6. The longitudinal beam (1) according to claim 5, characterized in that, The receiving bushings (9, 10, 11, 12) and the longitudinal beam (1) are constructed as a single piece.

7. The longitudinal beam (1) according to claim 6, characterized in that, The receiving bushing has a corresponding thread (41).

8. The longitudinal beam (1) according to claim 5, characterized in that, The support element (17) has plate-shaped edge regions (32, 33), wherein the first edge region (32) is supported on the first receiving bushing (9), and the second edge region (33) is supported on the second receiving bushing (11).

9. The longitudinal beam (1) according to claim 8, characterized in that, The first receiving bushing is integrally formed with the first edge region (32), and / or the second receiving bushing is integrally formed with the second edge region (33).

10. The longitudinal beam (1) according to claim 8 or 9, characterized in that, Below the corresponding edge regions (32, 33), at least two of the receiving bushings (9, 10, 11, 12) are arranged to overlap in the vertical direction (z) of the longitudinal beam (1).

11. The longitudinal beam (1) according to claim 10, characterized in that, The at least two receiving bushings are interconnected in the contact areas (35, 37).

12. The longitudinal beam (1) according to claim 5, characterized in that, At least one of the receiving bushings (10, 12) is supported on the side wall (16) of the longitudinal beam (1) by means of at least one rib (36, 38).

13. A rear section (2) for a motor vehicle, the rear section comprising at least one longitudinal beam (1) according to any one of claims 1 to 12, and comprising a wheel cover element (26) fixed to the longitudinal beam (1), wherein, The support element (17) of the longitudinal beam (1) is farther from the upper end region (27) of the wheel cover element (26) in the direction of the vehicle's vertical axis than from the lower end region (28) of the wheel cover element (26).

Images