WO1997039937B1

WO1997039937B1 - Floor assembly of a vehicle with means for increasing passenger safety

Info

Publication number: WO1997039937B1
Application number: PCT/DE1997/000715
Authority: WO
Filing date: 1997-04-09
Publication date: 1998-01-15

Abstract

The invention concerns means for obtaining a time curve of accelerations below the threshold values for passengers in any frontal, lateral, and/or rear impact in EU and US crash tests, said means comprising: a) pairs of piston devices operating independently of each other for the purpose of independent deformation of their deformation elements, b) a guided piston rod with a space-saving construction, c) deformation elements (1 to 3) with controllable deformation behavior during the process of bending bulging to determine the steps for releasing the impact energy in the sense of material utilisation, d) large surface deformation elements which are affixing on the floor assembly between the A columns and rear pushrod (36), and e) form and/or non-positive connection of the deformation elements with the vehicle components to avoid buckling and of the deformation elements with one another to augment the number of energy absorbing masses with direct deviation of the residual impact energy. As a trunk floor, the rear deformation element (3) is removable from the trunk for access to the spare wheel, document box or things in storage compartments. The projection of the lateral deformation element (2) can be used as the running board and/or lateral pushrod.

Claims

-36-

CHANGED CLAIMS

[at the International Bureau on 12 November 1997 (12.11.97); original claims 1-37 replaced by new claims 1-38 (8 pages)]

1. Floor group of a vehicle with means to increase the occupant protection consisting of two bumpers (35, 36) and the following stiff Bodenträgems (30 to 34) as two Läugsträgeni, Schwelleni and at least one cross member, characterized by arrangement

- At least one Defonnationselementes (1 to 3) on the floor assembly between the A-Säuleu and the rear bumper (36) and

- At least one pair of independently acting Kolbenvomchtungen and the associated Lagergehäusε (30.7, 30.7a to 30.7c) to guide all

Piston rods in the longitudinal direction in the apron area, of which each Kolbenvomchtung an impact pot (5.1). at least one piston rod (5, 5a, 5c) and one with the front end portion (1.1) of the Defonnationselementes (I) fixed or loosely connected piston (1.2). so that both pistons have the defoaming element independently of one another for energy absorption at any front impact.

2. Floor assembly according to claim 1, characterized in that the side region of the Defonnationselementes (1, 2, 2a to 2e, 2a 1 to 2a3) in any side impact verfoπnbar or energy absorbing.

3. Floor assembly according to at least one of the preceding claims, characterized by arranging at least one pair of independently acting Kolbenvomchtungen and the associated bearing housing in the rear area, for energy absorption in any rear impact, each piston device an impact cup (5.1), at least one piston rod (5, 5b, 5d) and one with the rear end portion (1.1) of the Defonnationselementes (1) fixed or loosely connected piston (1.2). -37-

4 Bodengnippe according to at least one of the preceding claims, characterized by arranging a deformation selementes (3c) below the vehicle floor (57) or boot floor (3, 3a) and by positive and / or non-positive connection with the rear bumper (36), the rear Läugsträgeni (30a, 30.3) and the rear cross member (33a) by means of pairs of holders. Retaining screws (3.6a), riveting, gluing and / or welding

5 Bodengnippe according to at least one of the preceding claims, characterized in that the Defonnationselement (3, 3a) with the rear Läugsträgeni (30.3) and rear fenders (40) is positively and releasably connected

6 floor assembly according to claim 5, characterized in that the Defonnationselement (3, 3a) is removable from the trunk

7 floor assembly according to at least one of claims 5 and 6, characterized in that the Defonnationsglieder (3.2) of Defonnationselementes (3) with Defonnationsglie (3.1) by means of hinges (3.3) are rotatably connected

8. Bodengnippe according to at least one of claims 5 and 6, characterized. that the Defonnationsglieder (3.1 a, 3.2 a) of Defonnationselementes (3 a) miteinandei are positively connected

9. Bodengnippe according to at least one of the preceding claims, characterized in that the Defonnationselement (1 to 3) with at least one bottom support (30 to 34) foπn- and / or non-positively verbundeu

10 Bodengnippe according to at least one of the preceding claims, characterized in that the deformation elements (1, la to If, 2b to 2e, 2a 1 bi.s 2a3, 3b) are connected to each other foπn- and / or non-positively

1 1. Bodengnippe according to at least one of the preceding claims, characterized in that the inserted into the Bodentragei Defonnationselement with the associated attachment points QQ ₂ , Q ₃ , ...., Q "and Ri, R ₂ , R ₃ -. ..... R _n dei

Auxiliary parts (31.5, 32.5, 32.6, 33.5) of which Queilragei is non-positively connected

12. Floor group according to at least one of the preceding claims, characterized in that the immediately adjacent crumple zones Z], Z ₂ , Z ₃ , Z ₄ , -

of the deformation element (1 to 3) under load by unequal rigidity have unequal stresses.

13. Floor group according Anspnich 12, characterized by formation of Kuautschzonen

Zi, ZΣ, Z3, Z4, .. Zn + i out

- Subdivision of a deformation element (1 to 3) by different distance of the nodes Pi, P ₂ , Pj, ...., P., to each other, - predetermined breaking points to G2, G2a, G2b, G2c, G3, G4, G9,

honeycomb ABSo tion parts of Defonnationselementes (1, 2) and the deformation members (3.1, 3.2) according to G5,

Addition of at least one additional stiffness element (lz) according to G8,

- longitudinal stiffness of a deformation element (la) at angle α to G7,

- Add at least one additional part to G6 and / or

- wedging with at least one other Defonnationselement means support pairs such as Halteausspamngeii / holding parts (1.15, 2.1, 2.1a, 2.1 b, 3.5, 3.5a,

3.6a, 3.7, 40.1).

14. Bodengnippe according to at least one of the preceding claims, characterized in that the bottom support with

Auxiliary support (60a, 60b, 60c, 60c 1, 60c2, 60d, 60e),

- auxiliary plates (31.5, 32.5, 32.6, 33.5). - holding parts (1.15, 2.1, 2.1a, 2.1b, 3.5, 3.5a, 3.6a, 3.7, 40.1).

- holding recesses,

Junctions Qj, Q ₂ , Q3, ...., Q _n and / or R _} , R ₂ , R ₃ , ...., R, "

- open profile and / or

- Is provided from any profile and an auxiliary part educated design, for the purpose of recording the Defonnationselementes. 15. Bodengnippe according Anspnich 14, characterized by forming the bottom group of the floor supports (30 to 34, 30a to 34a, 31b to 33b, 32c, 30a 1, 30a2) with at least two profiles, of which

- At least one open profile for the two sills and side members and the remaining 5 profiles for all cross member or

- At least one open profile for the two Scbweller, side members and at least one intermediate cross member and the remaining profiles for the remaining cross member

- are used.

10 16. Floor assembly according to at least one of the preceding claims, characterized by the arrangement of the bearing housing (30.7, 30.7a to 30.7c) in or on the Bodenträgei.

17. Floor assembly according to at least one of the preceding claims, characterized in that the bearing housing (30.7, 30.7c) a number of holes for

15 guide at least one piston rod (5, 5a to 5d) has.

18. Floor assembly according to claim 17, characterized in that the at least one piston rod unclaimed holes of the bearing housing (30.7, 30.7c) for

Admission of Hilfssträgeπi (60a, 60b, 60c, 60c 1, 60c2, 60d, 60e) are used.

20

1 . Floor assembly according to at least one of claims 15 to 18, characterized by foπ conclusive connection or plug connection of the bearing housing (30.7a to 30.7c) with the bottom support (30a 1, 30a2), after which those parts are additionally connected to each other in a force-locking manner.

25

20. Floor assembly according to claim 19, characterized in that the bearing housing

(30.7a to 30.7c) extends into the front or rear cross member.

21. Bodengnippe according to at least one of the preceding claims, characterized

30 characterized in that the end of the piston rod with the piston (1.2) and the other end with the impact pot (5.1) is non-positively connected. 22. Floor assembly according to at least one of Claims 1 to 21, characterized in that the end of the piston rod is non-positively connected to the piston (1.2) and the other end is connected non-positively to the bumper (35, 36) or non-positively by connecting elements. wherein the connecting elements and / or bumper are provided with predetermined breaking points or the bumper is divided

23 floor panel according to at least one of the preceding claims, characterized in that after insertion into the space formed from the double U-shaped auxiliary support (60) and the P-shaped middle long-term support (30.2) the telephoning element (1)

- of which the shape formed by the auxiliary staghi (60), the langstiagei (30.2) and the auxiliary part (6) is loose, and

- His Endbei oak (1.1) with the piston (1.2) and with the U-fbπnigen middle

Quertragei (33.2) are positively connected

24 Bodengnippe according to at least one of claims I to 22, characterized by

Securing the Defonnationselementes (1, lb to Id, lf, 3b) after Einodei Duichschieben in at least one Hilfsstragei (60d, 60e) of the tunnel

- By pushing at least one Hilfstiagers (60b, 60c, 60cl, 60c2) in the Fuhrungsi ohi (1.8, 1.8a, 1.8b) of Defonnationselementes and the zugehoπgen

Cross member and

- Fastening of this auxiliary support to those transverse elements

25 floor group according to at least one of the aforementioned Anspιτιche. characterized in that the front of the U-shaped lateral and rear

Cross members (31.1, 33.1) loosely guided Defonnationselement (2) by mounting pairs after locking the retaining pins (2.1a) in the konπie end, with geiauschdampfendei disc (2.3) provided Halteausspangen dei with the sill (34) \ eι welded

Holding pieces (2.4) held wiid

26 Floor group according to Annex 25, characterized by use

Retaining screws (2.1) to high setting of the telephone element (2). where a key duich the overlapping Lochei of the threshold in the head of the retaining screw with hexagon socket is inserted -41-

27 floor group according to at least one of claims 25 and 26, characterized by breaking the predetermined breaking points of the retaining screws (2.1), retaining pins (2.1a) and / or

Holding pieces (2.4) with depth of a after exceeding a threshold value in the case of bulging.

5

28. Floor assembly according to at least one of claims 1 to 24, characterized by

Securing of the open sill (34a) loosely guided deformation element (2a3, 2e) after locking the lateral retaining pin (2.1b) in the associated Halteaussparuugen the Defonnationselementes (1, lf) 0 - by pushing the subcarrier (60b, 60c) in the Guide tube (1.8b) and the cross member and

- By attaching that subcarrier to those cross beams.

29 floor group according to at least one of claims 1 to 24, characterized by 5 Sichemng of the open sill (34) loosely guided Defonnationselementes

(2al, 2a2)

- By pushing the subcarrier (60 b, 60 c) in his Fühmiigsrohr and the associated cross member and

- By attaching that subcarrier to those cross beams.

20

30 Bodengnippe according to at least one of claims 25 to 29, characterized in that the projection of the lateral Defonnationselementes (2, 2a, 2a 1 to 2a3) as a step edge (2.8) is usable.

25 1. Bodengnippe according to at least one of claims 25 to 30, characterized in that the Vorsprang the lateral Defonnationselementes (2, 2a, 2a 1 to 2a3) is used as a side bumper.

32. Bodengnippe according to at least one of the aforementioned claims, characterized 30 characterized in that a central or lateral storage space in the trunk of the removable Defoπnationsglied (3.1, 3.2, 3.1a, 3.2a). Vehicle floor (57). Cross member (33). a rear wall of the trunk and

- two back Läugsträgeni (30.3) or

- A rear side member (30.3) and a fender (40) 35 is formed. -42-

33. Floor assembly according to at least one of claims 7, 12 to 15 and 32, characterized in that the Defonnationselement (3) consists of the following parts: - a middle deformation member (3.1), the holding parts (3.5) in the longitudinal direction parallel to each other and to the corresponding retaining recesses of the two rear longitudinal beams (30.3) are connected in a pin-locking manner with those retaining recesses; and

- Two lateral, on the Defoπnationsglied (3.1) by means of hinges (3.3) rotatably mounted deformation sgliedem (3.2), which are closed for closing the storage spaces and for resting on the support plates (40.2) of the two fenders (40), whereby their lateral edge surfaces with the associated C-fbπnigen fenders and their holding recesses with the koπτespondierenden. to the

Mudguards mounted holding parts (40.1) are positively connected.

34. Bodengnippe according to at least one of claims 8, 12 to 15 and 32. characterized in that the Defonnationselement (3a) consists of the following parts:

- A middle Defoπnationsglied (3.1 a), the transverse Fühmngsbalken (3.8) with the attached to the cross member 33.2) and the two rear side members (30.3) retaining rail (3.9) by holding pairs holding parts (3.7) / Halteaussparungen is foπnschlüssig connected; and

- Two lateral Defoπnationsgliedeπi (3.2a), which are lowered for closing the storage spaces and for resting on those Längsträgem and support plates (40.2) of the two fenders (40), whereby their lateral edge surfaces with the associated C-shaped fenders, their holding recesses with the Coπespondierenden, attached to the fenders holding parts (40.1) and their holding parts (3.6a) with the konπespondierenden retaining recesses of those longitudinal beams and the Defoπnationsgliedes (3.1a) are foπnschlüssig connected. -43-

35. Floor group according to claim 34, characterized in that the middle deformation element (3.1a) is additionally provided with holding parts (3.5a), which are longitudinally parallel to one another and to the corresponding supporting recesses of the two rear side members (30.3). are as well as with those retaining recesses

5 are positively connected.

36. Floor assembly according to at least one of the preceding claims, characterized in that the spring element (4a to 4c) of at least one bottom support (32, 34a) with an open profile loosely guided and at least one bottom support (31, 33a)

10 and subcarrier (60a) is attached.

37. Floor assembly according to at least one of the preceding claims, characterized in that the Kolbenvoπichtung with Fede element (4d) is provided.

15 38. Floor assembly according to at least one of the preceding claims, characterized by the use of metals, composite materials, glass fiber reinforced or non-metallic materials for the material of the holding part, auxiliary parts. Bearing housing. Spring element, bottom support, piston. Impact pot, Fühnmgsbalkens, the piston rod, retaining rail. Parts of the deformation element and the

20 Defoπnations Song.