DE102019205836A1 - Body for a two-lane vehicle - Google Patents

Abstract

The invention relates to a body for a two-lane vehicle with a rear loading space (1) which is delimited in the transverse direction of the vehicle (y) by a rear wheel housing (5) which has a side wall (11) inside the vehicle and a side wall (11) that is radially spaced around a vehicle. Rear wheel (7) having circumferential wall (9) which merges into the vehicle's inner side wall (11), a side wall structure (15) of the vehicle body being connected to the wheelhouse peripheral wall (9) outside the vehicle, and wherein between the side wall structure (15) and the wheelhouse peripheral wall (9) is spanned by an inner corner area (17) which provides installation space for a piece of equipment, in particular for a rear belt retractor (19). According to the invention, the inner corner area (17) between the side wall structure (15) and the wheel house peripheral wall (9) is bridged with at least one reinforcing strut (21) to increase the body rigidity.

Description

The invention relates to a body for a two-lane vehicle according to the preamble of claim 1.

When driving, for example when cornering, the rear side of a vehicle body can be loaded with a torque directed about the vehicle's longitudinal center axis, in which case the rear side of the body twists in relation to the front side of the body. To increase the vehicle rigidity, reinforcement profiles are therefore built into the rear section of the vehicle and / or the rear body is formed with sheet metal parts of greater sheet metal thickness.

A generic vehicle body has a rear loading space which is delimited in the transverse direction of the vehicle by a rear wheel arch. The rear wheel housing is designed with a side wall placed on edge inside the vehicle and a circumferential wall running at a radial distance around a vehicle rear wheel, which merges at a transition edge into the side wall inside the vehicle. The peripheral wall of the wheel housing is connected to a side wall structure of the vehicle body on the outside of the vehicle. An inner corner area is spanned between a side wall structure and the peripheral wall of the wheel arch, in which an equipment part, specifically a belt retractor for the rear seat bench of the vehicle, is installed. The piece of equipment can be attached to the wheel arch peripheral wall. In the prior art, the rear end of the vehicle has to be designed in a complex manner in order to ensure that the equipment part is rigidly connected to the rear wheel arch in the load case mentioned above.

From the DE 20 2013 004 133 U1 a rear end for a motor vehicle with a reinforcement structure is known.

The object of the invention is to provide a body for a two-lane vehicle in which, compared to the prior art, both the vehicle rigidity is increased in a structurally simple manner and the connection rigidity of the equipment part on the rear wheel arch is increased.

The object is achieved by the features of claim 1. Preferred developments of the invention are disclosed in the subclaims.
According to the characterizing part of claim 1, to increase the vehicle rigidity, the inside corner area between the side wall structure and the wheelhouse peripheral wall is bridged with at least one reinforcement strut that limits the installation space for the equipment part (i.e. the rear belt retractor) in the transverse direction towards the inside of the vehicle.

In a technical implementation, the piece of equipment can be functionally and force-wise decoupled from the side wall structure and attached to the wheel arch circumferential wall from the reinforcement strut. In this case, the piece of equipment can be spaced apart from the reinforcement strut to form an assembly clearance. The reinforcement strut can be connected to the side wall structure and to the wheel house in any way in a force-transmitting manner, for example by means of a welded connection or an adhesive connection or a screw connection.

In one technical implementation, the reinforcement strut can be a shaped sheet metal part. In the same way, the body in the area of the rear of the vehicle can also be made of sheet metal, for example the side wall structure, the wheel house and / or the body floor assembly delimiting the cargo space on the floor side.

In order to ensure easy assembly and disassembly of the equipment part, it is preferred if the installation space limited between the reinforcement strut, the side wall structure and the wheelhouse peripheral wall is open in the longitudinal direction of the vehicle to the front of the vehicle and to the rear of the vehicle, creating free assembly accesses to the equipment part.

With a view to increasing the rigidity of the attachment of the equipment part to the wheel house, it is preferred if the equipment part and the reinforcement strut, viewed in the longitudinal direction of the vehicle, are positioned without a longitudinal offset to one another. In this case, the piece of equipment, viewed in the transverse direction of the vehicle, is positioned in transverse alignment with the reinforcement strut, in particular covered by the reinforcement strut.

The reinforcement strut can be attached to the side wall structure and the wheel house of the vehicle body in a two-, three- or four-point connection. The reinforcement strut can be connected in a force-transmitting manner directly to the side wall structure at at least one upper connection point. In the same way, the reinforcement strut can be connected to at least one lower connection point on the wheel house (indirectly or directly) in a force-transmitting manner.

In the event of a transverse load, that is to say, for example, when the vehicle is cornering, transverse forces are introduced into the rear end of the vehicle. The lateral forces can be introduced in a first load path from the side wall structure via the wheel housing into the body floor assembly. Using the Reinforcing strut, according to the invention, a second load path is provided, via which the transverse forces are introduced from the side wall structure via the reinforcing strut into the wheel house and further into the body floor assembly.

In a first embodiment variant, the reinforcement strut can be fastened directly to the wheel arch at the lower connection point (complex in terms of manufacturing technology). In this case, a suitable support base must be formed in the sheet metal part of the wheel arch in order to ensure that the reinforcement strut is properly connected. Instead, the lower connection point of the reinforcement strut can be designed with a support bracket which, as a separate component, is adapted to both the wheelhouse geometry and the geometry of the reinforcement strut. In this case, the reinforcement strut can be connected indirectly to the wheel house in a force-transmitting manner with the interposition of the support bracket.

With regard to a further increase in the torsional rigidity of the rear end of the vehicle, it is preferred if an inside corner area between the wheel house and the body floor assembly is reinforced with a corner reinforcement. The corner reinforcement can be connected to the wheel arch as well as to the body floor assembly in a force-transmitting manner. In the case of transverse load, this results in a load path in which transverse forces can be introduced from the wheel housing via the reinforcing profile part into, for example, a body longitudinal member of the body floor assembly.

In this case, the vehicle rigidity can be increased further in a simple manner if the lower connection point of the reinforcement strut is formed directly on the reinforcement profile part. In this case, the reinforcement strut is indirectly connected to the wheel house in a force-transmitting manner with the reinforcement profile part in between. In the case of transverse load, transverse forces in the second load path can thus be introduced from the side wall structure into the reinforcement strut and further via the reinforcement profile part into the body floor assembly.

With a view to increasing the rigidity, it is preferred if the corner reinforcement has a hollow profile. Against this background, the corner reinforcement can be constructed in the form of a shell with a profile base spaced from the wheel arch and a profile wall raised from it, from which a joining flange is angled outward, with which the shell-shaped corner reinforcement is connected to the wheel arch. In this case, the lower connection point of the reinforcement strut can be formed on the profile bottom of the corner reinforcement.

Exemplary embodiments of the invention are described below with reference to the accompanying figures.

• 1 in einer Seitenansicht mit teilweisem Aufriss ein zweispuriges Kraftfahrzeug;
• 2 in einer perspektivischen Teilansicht sowie in einer Blickrichtung von fahrzeuginnen die Verstärkungsstrebe in Einbaulage;
• 3 eine schematische Teilschnittansicht entlang einer Schnittebene yz;
• 4 und 5 jeweils Ansichten entsprechend der 2 gemäß weiterer Ausführungsbeispiele.

Show it:

• 1 in a side view with partial elevation a two-lane motor vehicle;
• 2 in a perspective partial view and in a direction of view from inside the vehicle, the reinforcing strut in the installed position;
• 3 a schematic partial sectional view along a section plane yz;
• 4th and 5 respectively views according to the 2 according to further exemplary embodiments.

In the 1 is a rear cargo space with partial elevation 1 of a two-lane motor vehicle shown. The rear cargo area 1 is on the bottom side through a body floor assembly 3 as well as in the transverse direction of the vehicle y by two opposite sheet metal wheel arch parts 5 limited by those in the 1 just a sheet metal wheel arch part 5 is shown. The sheet metal wheel arch part 5 points according to the 1 or 2 one spaced around a rear wheel 7th running perimeter wall 9 on, which in the vehicle transverse direction y inwards in a vehicle interior, vertical side wall 11 transforms. As from the 1 and 2 It can also be seen that there is an inside corner area between the side wall 11 of the sheet metal part of the wheel arch 5 and the body floor assembly 3 with a corner reinforcement described later 13 stiffened. The wheel arch perimeter wall 9 goes to the outside of the vehicle in a body side wall structure 15th about. Between the side wall structure 15th and the wheelhouse perimeter wall 9 is another inside corner area 17th stretched, the space for a rear belt retractor 19th provides. The rear belt retractor 19th is part of a seat belt system for a rear seat bench (not shown) of the vehicle. The rear belt retractor 19th is fixed to the peripheral wall of the wheel arch via fastening points 9 assembled.

With a view to increasing the vehicle rigidity is in the 1 and 2 the inside corner area 17th between the side wall structure 15th and the wheelhouse perimeter wall 9 with a reinforcement strut 21st bridged. The reinforcement strut 21st is in the 2 at an upper connection point A. force-transmitting (for example by screw connection) on the side wall structure 15th connected and at a total of two lower connection points B. (also for example by screw connection) on the sheet metal part of the wheel arch 5 connected to transmit power.

As from the 3 is the rear belt retractor 19th only on the peripheral wall of the wheel arch 9 attached while the reinforcement strut 21st via an assembly clearance f ( 3 ) from the rear belt retractor 19th is spaced. The one between the reinforcement strut 21st , the side wall structure 15th and the installation space, which is limited in the circumferential wall of the wheel arch, is designed to be open in the vehicle longitudinal direction x to the front of the vehicle and to the rear of the vehicle, forming free assembly accesses in order to facilitate assembly and disassembly of the belt retractor 19th to ensure.

The reinforcement strut 21st is in the 1 , 2 or 3 designed as a triangular flat profile sheet metal part and in a three-point connection 22nd ( 1 ) attached to the body, at the upper and lower connection points A. and B. at the corners of the triangular reinforcement strut 21st are trained. The rear belt retractor 19th is in the 1 or 2 , viewed in the vehicle transverse direction y, in transverse alignment with the reinforcement strut 21st positioned. Hence the belt retractor 19th in the vehicle transverse direction y from the reinforcement strut 21st completely covered.

In the 2 is the rear lower connection point in the vehicle longitudinal direction x B. with a support bracket 23 realized. The support bracket 23 is as a separate sheet metal part between the reinforcement strut 21st and the sheet metal wheel arch part 5 positioned so that the reinforcement strut 21st at the rear lower connection point B. not directly on the sheet metal part of the wheel arch 5 is connected, but rather with the interposition of the support bracket 23 .

At the lower front connection point B. is the reinforcement strut 21st in the 2 also not directly on the sheet metal part of the wheel arch 5 tied, but rather with the interposition of the already mentioned corner reinforcement 13 . The corner reinforcement 13 is a shell-shaped sheet metal part with a professional bottom 25th ( 3 ) and one of them raised profile wall 27 ( 3 ), from which a circumferential joining flange to the outside 29 ( 3 ) is angled. The corner reinforcement 13 is according to the 2 or 3 angular or L-shaped with a sheet metal part on the wheel arch 5 tied vertical legs 12 and one on the body floor pan 3 tied horizontal legs 14th educated.

In the 3 a side load case is indicated, as it arises, for example, in driving operation when cornering the vehicle. As a result, transverse forces are in a first load path L ₁ from the side wall structure 11 via the sheet metal part of the wheel arch 5 in the body floor assembly 3 initiated. In addition, by means of the reinforcement strut 21st a second load path L ₂ provided. In the second load path L ₂ are the shear forces from the side wall structure 15th over the reinforcement strut 21st at the lower connection point behind the vehicle B. on the one hand directly in the sheet metal part of the wheel arch 5 initiated and on the other hand at the lower connection point in front of the vehicle B. directly into the corner reinforcement 13 initiated and from there into the body floor assembly 3 forwarded. The lower connection point in front of the vehicle B. is in the 3 on the profile bottom 25th of the reinforcement profile part 13 formed, forming a hollow profile from the sheet metal wheel arch part 5 is spaced.

Based on 4th and 5 are further embodiments of the reinforcement strut 21st shown. In the 4th is the reinforcement strut 21st also designed as a flat profile sheet metal part, but not triangular, but rather as a sheet metal strip, the two upper connection points A. for attachment to the side wall structure 15th has and at a single lower connection point B. on the reinforcement profile part 13 is connected to transmit power.

In the 5 is the reinforcement strut 21st also manufactured as an approximately triangular flat profile sheet metal part that has two upper connection points A. on the side wall structure 15th is connected and via exactly one lower connection point B. on the sheet metal part of the wheel arch 5 is connected. As an alternative to the exemplary embodiments shown, the reinforcement strut 21st be realized as an approximately trapezoidal flat profile part that is attached to two upper connection points A. on the side wall structure 15th is connected and at two lower connection points B. on the sheet metal part of the wheel arch 5 is directly or indirectly connected.

List of reference symbols

1

rear cargo space

3

Body floor pan

5

Wheel arch sheet metal part

7th

Rear wheel

9

Perimeter wall

11

Side wall

12

vertical leg

13th

Corner reinforcement

14th

horizontal leg

15th

Sidewall structure

17th

Inside corner area

19th

rear belt retractor

21st

Reinforcement strut

22nd

Multipoint connection

23

Support bracket

25th

Profile bottom

27

Profile wall

29

Joining flange

L ₁ , L ₂

Load paths

A, B

Connection points

f

Assembly clearance

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• DE 202013004133 U1 [0004]

Claims (10)

Body for a two-lane vehicle with a rear loading space (1) which is delimited in the transverse direction of the vehicle (y) by a rear wheel housing (5), which has a side wall (11) inside the vehicle and a rear wheel (7) with a radial distance. extending circumferential wall (9) which merges into the vehicle inner side wall (11), wherein a side wall structure (15) of the vehicle body is connected to the wheel house circumferential wall (9) on the outside of the vehicle, and wherein between the side wall structure (15) and the wheel house circumferential wall (9) an inside corner area (17) is spanned which provides installation space for a piece of equipment, in particular for a rear belt retractor (19), characterized in that the inside corner area (17) between the side wall structure (15) is to increase the rigidity of the body. and the wheel arch peripheral wall (9) is bridged with at least one reinforcing strut (21). Body after Claim 1 , characterized in that the equipment part (19) is connected to the wheelhouse peripheral wall (9) and is spaced from the reinforcement strut (21) to form an assembly clearance (f). Body after Claim 1 or 2 , characterized in that the space between the reinforcement strut (21), the side wall structure (15) and the wheelhouse peripheral wall (9) is open in the vehicle longitudinal direction (x) to the front of the vehicle and to the rear of the vehicle, forming free assembly accesses. Body after Claim 1 , 2 or 3 , characterized in that the equipment part (19) is positioned in the transverse direction of the vehicle (y) in transverse alignment with the reinforcement strut (21), in particular is covered by the reinforcement strut (21). Body according to one of the preceding claims, characterized in that the reinforcement strut (21) is attached to the body in a two-, three- or four-point connection (22), and / or that in particular the reinforcement strut (21) is attached to at least one upper connection point ( A) is connected to the side wall structure (15) in a force-transmitting manner and is connected in a force-transmitting manner to at least one lower connection point (B) directly or indirectly to the wheel house (5). Body according to one of the preceding claims, characterized in that in a transverse load case, transverse forces can be introduced in a first load path (L ₁ ) from the side wall structure (15) via the wheel house (5) into a body floor assembly (3) and in a second load path (L ₂ ) can be introduced from the side wall structure (15) via the reinforcement strut (21) into the wheel house (5) and further into the body floor assembly (3). Body after Claim 5 or 6 , characterized in that the lower connection point (B) of the reinforcement strut (21) is realized with a support bracket (23), and that the reinforcement strut (21) is connected to the wheel housing (5) in a force-transmitting manner with the support bracket (23) in between. Body according to one of the preceding claims, characterized in that an inner corner area is spanned between the wheel arch (5) and the body floor assembly (3), and that a corner reinforcement (13) both on the wheel arch (5) and on to transverse the inner corner area the body floor assembly (3) is connected in a force-transmitting manner. Body after Claim 8 , characterized in that the lower connection point (B) is formed directly on the corner reinforcement (13) so that the reinforcement strut (21) is connected to the wheel house (5) with the corner reinforcement (13) in between, and / or that in particular in the event of a load the transverse forces in the second load path (L ₂ ) can be introduced into the body floor assembly ( ₃ ) via the side wall structure (15), the reinforcement strut (21) and the corner reinforcement (13). Body after Claim 9 , characterized in that the corner reinforcement is a shell-shaped sheet metal profile part with a profile base (25) spaced from the wheel house (5) and a profile wall (27) raised therefrom, from which a joining flange (29) is angled and connected to the wheel house (5) is, and that in particular the lower connection point (B) is formed on the profile base (25) of the corner reinforcement (13).

Images