DE102010021087A1 - Body structure for motor vehicle i.e. passenger motor vehicle, has front and rear seat attachments arranged at floor structure of motor vehicle, where rear seat attachment is constantly formed and defined at left and right side skills - Google Patents

Abstract

The structure has front and rear seat attachments (10, 12) arranged at a floor structure (8) of a motor vehicle (2), where the rear seat attachment is constantly formed and defined at a left side skirt (14) and a right side sills. The rear seat attachment is designed as a closed hollow structure or a pipe structure (18) and formed for fastening motor car seats (6) that are arranged next to each other. The rear seat attachment is supported and and/or defined at a frame tunnel (16) of the floor structure.

Description

The invention relates to a body structure of a motor vehicle, in particular of a passenger vehicle, which has a fastening for a motor vehicle seat on a floor structure of a motor vehicle. The invention further relates to a seat attachment and a motor vehicle.

Such body structures are used in almost every motor vehicle. An exemplary body structure with a corresponding seat attachment is in the DE 10 2007 001 720 A1 discloses a seat cross member for a motor vehicle disclosed. The local seat cross member is designed as a rolling profile and is used for fastening a motor vehicle seat. For this purpose, it has end flanges flared, with which it can be fastened to the tunnel or sill of a motor vehicle. The seat cross member thus has a double-T structure, wherein extending in the vehicle longitudinal direction parts of the structure have means for seat attachment.

A disadvantage of this type seat attachment is that the two arranged in the vehicle longitudinal direction parts of the seat cross member narrow the footwell of the rear passengers, so that the seating ergonomics of the rear passengers is limited, especially when the vehicle is fully occupied. In addition, at least two cross members for mounting two front seats are required, which requires a corresponding installation effort.

From the DE 10 2007 046 127 A1 Further, a seat attachment for a motor vehicle seat is known, comprising an elongated seat cross member, which is drawn from a left side sill to a right sill and which is connectable or connected to the top of a tunnel to be bridged.

This structure extends to the bottom of the body structure and thus forms a barrier in the footwell of the rear passengers. The footwell is thereby limited and the ergonomics, especially for larger passengers not optimal. Furthermore, high demands are placed on the tolerances of the seat cross member and the rest of the body structure, so that the cross member can be well fitted.

The object of the invention is therefore to improve a body structure of the type mentioned in that better ergonomics for rear passengers is given and that the seat structure can be mounted with little effort.

This object is achieved by a body structure according to claim 1 and a seat attachment according to the independent claim 15. Advantageous developments of the invention are the subject of the dependent claims.

A body structure according to the invention of a motor vehicle, in particular of a passenger vehicle, has an attachment for a motor vehicle seat. The attachment of the motor vehicle seat has a front seat attachment and a rear seat attachment, wherein the front seat attachment and the rear seat attachment are arranged on a floor structure of the motor vehicle. The floor structure has in each case a left and a right side sill and at least one floor.

The seat attachment according to the invention is continuously formed and fixed to the side sills. In this way, the seat attachment simultaneously acts as a cross member and stiffens the body so that it gains in torsional stiffness and can dissipate laterally initiated forces better over the body, the interior of the motor vehicle is less deformed than when using conventional seat mounts. In addition, additional consoles for seat mounting redundant, whereby the rear passengers available footwell, also increases in the vehicle transverse direction.

According to a first possible development of the body structure according to the invention, rear seat attachment is designed as a closed hollow structure or as a tubular structure. By this configuration, a clearance between the seat attachment and ground can be achieved, which is usable for foot passengers sitting behind the corresponding seat as a footwell.

According to a further possible development of the invention, the seat attachment for attachment of at least two adjacent seats is formed. As a result, the assembly effort is reduced beyond.

According to a further possible development of the invention can be provided that the floor structure has a center tunnel and the seat attachment is supported and / or fixed to the center tunnel. This causes a further stiffening of the body structure, since by a support and in particular a determination of the seat attachment to the center tunnel, the torsional stiffness of the seat attachment and the torsional stiffness of the soil structure increases.

According to a further possible development holes are placed in the seat attachment for fixing to the center tunnel. In this way, the seat attachment can be attached or connect to the center tunnel with simple means.

According to a further possible development, it is provided that the seat attachment is structurally connected to the floor structure by means of welding, riveting or clinching or screw connections, preferably secured. Such a structural connection has the advantage over detachable connections that it can not be released during operation, so that a constant strength can be assumed over the entire life of the vehicle.

According to a further possible development of the invention it can be provided that the seat attachment is obliquely cut in the respective connection area to the side sills out. This allows a space-saving attachment of the seat attachment to the side skirts, since the seat attachment in the attachment area can be laid flat by the oblique gate. In addition, a better accessibility of the assembly areas can be achieved. "Trimmed" in the context of this invention is not limited exclusively to contrasting molding processes, but includes other molding processes, eg. B. archetype or forming process, with a.

According to a further possible development of the invention can be provided that the seat attachment is lowered in support and / or attachment areas to the soil structure. Conversely, this means that the seat attachment in the ground spanning area is raised, which increases the available footwell. According to this embodiment, the seat attachment in a side view has approximately an inverted W-like shape, which has elevations in foot well areas and depressions in attachment areas.

Basically, the seat attachment or pipe structure can be made according to many possible manufacturing processes. It may be deep drawn and joined, roll formed and joined, or fabricated in accordance with other known complex process fabrication techniques. According to one embodiment of the invention, however, it is provided that the seat attachment is made using hydroforming. It has been shown that many or all necessary contours can be introduced into the seat attachment by means of a hydroforming process, which leads to very small tolerances. In addition, hydroforming processes can be carried out very gently, so that the seat attachment has optimum rigidity.

According to a further development of the invention can be provided that the seat attachment has beads that contribute to a further stiffening of the seat attachment. The beads are preferably arranged in the longitudinal direction of the seat attachment and elongated to stiffen the seat attachment.

For attachment of the motor vehicle seats can be provided in a further development of the invention that the seat attachment holes with edge trim, to which the seats or seat rails are fastened. The edge trim provides a precise alignment of the seat attachment to the body and thus contributes to the precise alignment of rails of the seats and thus supports a smooth running of the fixed seats.

After the front seat attachment for the ergonomics of the passengers is of less importance than the rear seat attachment for the rear passengers, can be used in the invention in the front seat attachment to known fasteners, such as blocks. In a further development of the invention, however, it is provided to use a structure for the front seat attachment as well, which may be designed according to the structure described above. In this way, a further stiffening of the body structure can be achieved, since then the front seat attachment connects the two inner side skirts together and thus stiffened. Also, this can save further weight. In addition, the entire seat attachment, front seat attachment and rear seat attachment, in this way very easy to assemble, since only one assembly station is required for both seat mounts.

According to a further possible development of the invention can be provided that the body structure is equipped with an insulation that insulates the interior acoustically and / or thermally to the outside. In the context of this development, the insulation is slotted transversely, which can be achieved that the insulation can be installed in one piece consistently from front to back.

If, in a further embodiment of the invention, at least one slot is arranged in the region of a footwell ventilation, the necessary processing steps for the production and installation of the insulation can be reduced.

In a further embodiment of the invention, a diaphragm may be provided which has at least one opening for footwell ventilation. With the help of such a diaphragm can fix an insulation, to which the diaphragm can be provided in a further possible embodiment of the invention with a hook and loop or barbs hooked, which fixes the insulation.

A first independent subject of the invention relates to a seat attachment of a body structure according to the invention described above. Such a tube structure provides a seat mount which is easy to assemble and provides structural stiffening which contributes to a stiffer body at a low weight.

Another independent subject of the invention is a motor vehicle having a previously described body structure.

The invention will be described with reference to two embodiments. Here are shown schematically:

1 a perspective view of a section of a motor vehicle interior with a body structure according to the invention;

2 a body structure according to the invention according to the first embodiment without a seat;

3 a plan view of a body structure according to the invention according to the first embodiment;

4 a body structure according to the invention with mounted insulation;

5 a detailed view of the insulation;

6 a sectional view along the section line AA according to 2 ;

7 a sectional view along section line BB according to 2 ;

8th an enlargement of the detail "X" 7 such as

9 an alternative embodiment of a body structure according to the invention.

1 shows a section of a motor vehicle according to the invention 2 in which an interior 3 of the motor vehicle 2 is shown.

The car 2 has a body 4 on, at the one seat 6 is attached. In the illustrated seat 6 it is a front seat of the motor vehicle 2 ,

The body 4 has a soil structure 8th on which the seat 6 by means of a front seat attachment 10 and a rear seat attachment 12 is attached.

The soil structure 8th of the motor vehicle 2 has a side sill 14 on, from here the inner sill structure is shown. In the middle of the motor vehicle 2 , right of the front seat 6 , is a center tunnel 16 formed, for example, for the usual purposes in the motor vehicle (management of the exhaust system, recording of drive shaft, transmission, etc.) can be used.

The rear seat attachment 12 has a tube structure 18 which is on the left side sill 14 and at the middle tunnel 16 is attached. The pipe structure 18 is also on the in 2 visible right side skirts 20 attached. The pipe structure 18 serves as the front seat attachment 10 , for fixing seat rails 22 on which the front seat 6 is guided adjustably in and against the vehicle longitudinal direction L.

The pipe structure 18 extends over the entire interior width of side skirts 14 to side skirts 20 and is preferably formed in one piece.

2 shows the body structure 4 without attached front seat 6 , The soil structure 8th the body structure 4 has one between the left side sill 14 and center tunnel 16 extending ground 24 and one between the center tunnel 16 and right side sill 20 extending ground 26 on.

The pipe structure 18 is with the side skirts 14 . 20 structurally connected by welding. For this purpose, the pipe structure 18 in the area of the center tunnel 16 an opening 28 through, through which the tube structure 18 can be structurally connected to the center tunnel.

The pipe structure 18 is in the field of soils 24 . 26 opposite the center tunnel 16 raised to the vehicle vertical direction H as large a distance between the tube structure 18 and soil 24 . 26 to enable.

In the embodiment shown here, the front seat attachment 10 through several bucks 30 realized on which for fixing the seat rails 22 holes 32 are introduced. The bucks 30 are with the soil structure and / or side skirts 14 . 20 and / or center tunnel 16 structurally connected.

At the pipe structure 18 are for fixing the seat rails 22 mounting holes 34 provided, which for centering the seat rails 22 partially edge trim.

The pipe structure 18 is in its end areas to the side sills 14 . 16 beveled to the Profile of side skirts 14 . 20 to be adapted, not to stand up too much and to ensure good mountability.

3 shows one opposite 2 steeper view of the body structure according to the invention 4 ,

The bucks 30 for the front seat attachment 10 are on a seat cross member 36 arranged, which in the area below the front seat 6 the ground 24 . 26 raises, so that space for motor vehicle components, such as a tank, is available. This makes it possible, especially for compact vehicles save further space, which benefits the engine compartment or a trunk.

In the tube profile 18 are beads 38 introduced, which the pipe profile 18 continue to stiffen. The beads 38 are elongate and extend in the longitudinal direction of the pipe profile 18 ,

In the hole 28 for fixing the pipe structure 18 at the middle tunnel 16 are two attachment points 40 to recognize with their help a structural connection between pipe structure 18 and center tunnel 16 is made. attachment points 42 between pipe structure 18 and left side skirt 14 are in the area of the edge bevel 44 intended.

4 shows the body structure according to the invention with a mounted insulation 46 which the vehicle interior 3 insulated thermally and acoustically to the outside.

The isolation 46 is integrally formed and has openings 48 on, which is arranged in the area of a footwell ventilation for the rear passengers.

The isolation 46 is in the area of the openings 48 with a panel 50 covered. The aperture 50 also has openings 52 to enable footwell ventilation. Due to the design of the insulation 46 It is possible to assemble them in one piece, which reduces the assembly effort compared to multi-piece insulation.

5 shows a detailed view of the insulation 46 , The isolation 46 is in the vehicle transverse direction Q with a slot 54 provided, which is a mounting of the insulation 46 in one piece with attached pipe structure 18 allows.

Different openings 56 in isolation 46 are to carry out the pipe profile 18 provided so that the isolation 46 after installation of the pipe profile 18 can be attached.

6 shows a section through the body structure according to the invention 4 along the section line AA 2 , The pipe structure 18 has an inverted W-shape, which provides a larger space between floor 24 and pipe structure 18 allows. The pipe structure 18 rests on the center tunnel 16 from.

The W-shape of the pipe structure 18 is achieved by cutting the sections of the pipe structure 18 between left side skirt 14 and right side sill 20 and the center tunnel 16 are arranged higher in the vehicle vertical direction than the section that extends to the center tunnel 16 supported. These sections are thus raised to the attachment areas. As a result, the seats can be arranged higher and allow the front passengers a raised seats. This allows in particular the use of the invention in high-building vehicles such as vans.

7 shows a section along the section line BB 2 , where to clarify the space a leg 58 with foot 60 a seated rear passenger is shown.

The floor 24 has a step down in the footwell. This is below the pipe structure 18 to the ground 24 enough space for the foot 60 educated.

The foot 60 is in ergonomic sitting position of the rear passenger partially below the tube structure 18 arranged so that through the pipe structure 18 a larger space for fund passengers can be realized.

For footwell ventilation of the rear passengers is a ventilation duct 62 on the seat cross member 36 arranged, which of a carpet 64 is covered.

8th shows a detail view of the detail "X" according to 7 in which the arrangement of the aperture 50 as well as the slot 54 in isolation 46 becomes visible.

9 shows a further possible embodiment of a body structure according to the invention 4 ' , in which instead of a transversely running pipe structure, two transversely running pipe structures 18 ' . 30 ' are provided. The front pipe structure 30 ' replaces the bucks 30 according to the first embodiment.

LIST OF REFERENCE NUMBERS

2

motor vehicle

3

inner space

4, 4 '

body structure

6

front seat

8th

soil structure

10

front seat attachment

12

rear seat attachment

14

side skirts

16

center tunnel

18, 18 '

tube structure

20

side skirts

22

seat rails

24, 26

ground

28

hole

30

bucks

30 '

tube structure

32

holes

34

holes

36

Seat crossmember

38

beading

40, 42

attachment points

44

edge bevel

46

isolation

48

openings

50

cover

52

openings

54

slot

56

opening

58

leg

60

foot

62

ventilation duct

64

carpet

L

Vehicle longitudinal direction

H

Vehicle vertical direction

Q

Vehicle transverse direction

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been 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.

Cited patent literature

• DE 102007001720 A1 [0002]
• DE 102007046127 A1 [0004]

Claims (15)

Body structure of a motor vehicle, in particular of a passenger vehicle ( 2 ), with a fastening of a motor vehicle seat ( 6 ), comprising a front seat attachment ( 10 ) and a rear seat attachment ( 12 ), with the front seat attachment ( 10 ) and the rear seat attachment ( 12 ) on a soil structure ( 8th ) of the motor vehicle ( 2 ), the soil structure ( 8th ) a left and a right side sill ( 14 . 20 ) and at least one floor ( 24 . 26 ), characterized in that the rear seat attachment ( 12 ) and at the side skirts ( 14 . 20 ). A body structure according to claim 1, characterized in that the rear seat attachment as a closed hollow structure or as a tubular structure ( 18 . 18 ' ) is trained. A body structure according to claim 1 or 2, characterized in that the rear seat attachment for fixing at least two substantially juxtaposed seats ( 6 ) is trained. Body structure according to one of the preceding claims, characterized in that the soil structure ( 8th ) a center tunnel ( 16 ) and the rear seat attachment ( 12 ) at the center tunnel ( 16 ) is supported and / or fixed. A body structure according to claim 4, characterized in that in the rear seat attachment ( 12 ) Holes ( 28 ) for attachment to the center tunnel ( 16 ) are introduced. Body structure according to one of the preceding claims, characterized in that the rear seat attachment ( 12 ) structurally with the soil structure ( 8th ) is connected by means of welding, riveting or clinching or screw connections. Body structure according to one of the preceding claims, characterized in that the rear seat attachment ( 12 ) in the respective connection area to the side sills ( 14 . 20 ) is cut obliquely. Body structure according to one of the preceding claims, characterized in that the rear seat attachment ( 12 ) in support and / or attachment areas to the soil structure ( 8th ) is lowered. Body structure according to one of the preceding claims, characterized in that the rear seat attachment ( 12 ) using hydroforming processes. Body structure according to one of the preceding claims, characterized in that in the rear seat attachment ( 12 ) Beading ( 38 ) are introduced, which are preferably elongate and extend along the seat attachment. Body structure according to one of the preceding claims, characterized in that the rear seat attachment ( 12 ) for fixing the seats ( 8th ) Holes with edge trim ( 34 ) having. Body structure according to one of the preceding claims, characterized in that the front seat attachment according to the rear seat attachment ( 12 ) is designed according to one of claims 1 to 11. Body structure according to one of the preceding claims, with insulation ( 46 ), whereby the isolation ( 46 ) is slotted transversely. Body structure according to one of the preceding claims, with a diaphragm ( 50 ) with at least one opening ( 52 ) for footwell ventilation. Seat attachment according to one of the preceding claims.

Images