DE1655978A1 - Substructure for automobile body - Google Patents

Description

DR.O.DiTTMANN K.L.SCHIFF DR.A.V.füNER PATENT LAWYERS

8 MUNICH

DR. O. DlHMANN · K. L SCHIFF · DR. A. v. FONER "* READY ANQER 1S

8 MUENCHEN 90 - READY ANQER 15

TELEPHONE 29 73 69

TELEQR.ADR .: NAVIGATOR MUENCHEN

The Buda Company

DA-K296 (1-57) _{13> February 1968}

KLS / Wu J

Substructure for automobile body

The invention relates to substructures for automobile body and aims to create improvements in this area.

Background of the invention

The invention represents a departure from the two most common types of automobile body construction - one is by a skeleton frame with the body assembled on it and the second by the union of the Frame marked with the body - in so far as it creates a complete unified undercarriage body structure or unit consisting of beams,

109U3 / 0245

3oden, fire bulkhead or bulkhead and engine and running gear suspensions provides that is ready to receive a finished superstructure box; it is actually suitable for any a number of types of finished superstructure body units. Some suggestions for building a unified Undercarriage body construction has already been made, but it is asserted for the invention that it is a creates lighter, stronger and more versatile construction, as can be seen from the following description of an exemplary Embodiment of the invention with reference can be taken from the accompanying drawings.

drawings

In the drawings is:

1 is a plan view and a cross-section along line 1-1 of FIG. or platform construction;

Figure 2 is a vertical longitudinal cross-section along line 2-2 of Figures 1 and 7;

Fig. 3 is a front view which is partially broken away at the front part of the rear wheel housing:

109Θ43 / 0246

4 is a perspective, seen from the front and from the side, similar to that shown in FIGS. 1 to 3 on a smaller scale Undercarriage body structure illustrated;

Figure 5 is a bottom perspective of the assembly shown in Figure 4;

6 is a top view of a stress diagram showing the transfer of Pvad stresses to the undercarriage body structure is shown;

FIG. 7 is a partial, enlarged vertical section along line 7-7 of FIG. 1; FIG.

FIG. 8 is a partial, enlarged vertical section along line 8-8 of FIG. 1;

FIG. 9 is a partial, enlarged vertical section along line 9-9 of FIG. 1; FIG.

10 shows a partial, enlarged vertical section along line 10-10 of Figure 1;

FIG. 11 is a partial, enlarged vertical section along line 11-11 of FIG. 1; FIG.

FIG. 12 is a partially enlarged horizontal section along line 12-12 of FIG. 3; FIG.

10Ö843 / 02A5

- 4 -

-A-

13 is a partial, enlarged vertical section along line 13-13 of Figures 3 and 12;

14 is a partial, enlarged vertical section along line 14-14 of Figure 1;

FIG. 15 is a partial, enlarged vertical section along line 15-15 of FIG. 1; FIG. and

16 is an enlarged view of the right side section of FIGS. 8, 9 or 10, wherein phantom
Parts of the superstructure structure shown are shown attached thereto.

106643/0245

Summary of the invention

Before beginning the detailed description, perhaps the following remarks should be made about the general characteristics and Advantages of the construction according to the invention useful.

In short, the undercarriage body structure provided here essentially contains a platform that supports the Functions of the frame, the floor, the i-engine and chassis suspensions, the wheel housing components, the cowl, bulkhead or fire bulkhead components and the seat carrier combined. This platform forms the lower cover for a superstructure body, which is separated without a floor for easy access and then built onto the undercarriage unit or platform.

The present platform concept allows the use of normal! 'Zagenkasten-frame construction methods assembling components on the platform, handling the platform and the body and lowering the car body and assembly. It saves repairing or hospitalization of the bodies after the final assembly. Work, Equipment and administrative operations are reduced and divided more advantageously.

The platform principle according to the invention also allows the assembly of motor, drive, seats and connected

109843/0245

- 6

Equipment for the construction of a mobile vehicle, which then transported without work transport devices, e.g. to the various assembly areas or factories can to receive the various superstructure body units .

The platform concept allows organizational separation of the platform and body groups. These can almost work independently. By reducing the mutual dependence and influence of the two groups as well as the stylization group during development and IT redesign or "facelift" programs considerable time and money savings can be achieved. This separation facilitates more purposeful planning in the long run by creating assembly components that can be developed and improved according to different schedules.

The undercarriage box or platform unit according to the invention Can be made in a manner similar to a frame and for underside assembly of components upside down and is therefore easily accessible for all installation work. The superstructure body unit or the The body of the car sits in a number of key key attachment points in a manner similar to that of an ordinary frame the undercarriage body unit on; these spots are on the side supports and see elastic insulation to allow adaptability and coordination between platform and body.

10 & 643/0246

- "7 -

• J _

In order to gain a "maximum of body space" is the Bottom placed low, is almost flat and: 1 with one Tunnel for the drive shaft, the exhaust line, the fuel line, the brake lines, the wiring and the like. Mistake.

Box-shaped, continuous, transversely extending seat mounting beds are used with the floor to provide a To create transom structure that adds strength and rigidity, i.e. reinforcement.

Front longitudinal members are provided, the rear inner portions of which extend inwardly and backwardly of the lower floor and tunnel edges to transfer the front end loads into the floor and tunnel structure and which include outer torque box members extending into the side rail and bulkhead structure to accommodate the front end loads to be transferred into the bulkhead and side support structures.

The load is placed between the tunnel and the side girders through the front and rear box-shaped, simultaneously Cross members serving as seat supports and also redistributed by cross member structures on the fire bulkhead.

The mechanical chassis components, engine, power transmission line, front and rear suspension, steering

109643/02

- R -

components, heating system, air conditioning system, liquid cooling system, exhaust, control devices, electrical equipment, Seats, flooring and lining, spare tires, bumpers and the like can be placed on the undercarriage body assembly or platform must be assembled with the superstructure box unit before assembly.

The cowl and the straps are closed Box sections designed to provide additional strength and rigidity in final assembly and to check openings during production.

Since the floor is supported by the undercarriage body unit the superstructure box unit or the actual body or shell is open at the bottom for good accessibility and can be fitted with interior fittings, doors and windows before being lowered onto the platform.

The sealing between the upper and lower car body units can be made by elastic means, tape or rubber

usual achieved and the units can be at the intended / sta-

dard mounting parts attached to each other.

After lowering the body, the vehicle is completed, preferably by making a mini

paint number of required electrical connections and / or through the additional installation of components such as

1 09643/024 5 - 9 -

Lamps, instruments, connectors and hydraulic lines as required or how they are preferably set aside for final assembly.

Small and uneven surfaces are provided to reduce noise. Given that the platform Can accommodate different body types and designs, the effects of the noise reduction programs are many more stable and durable.

The great advantage of the interaction of the body and platform is the ability to adjust them to one another in order to reduce vibrations to a minimum. From the point of view of the overall rigidity of the body - a not insignificant factor in the case of vibrations - the platform is designed in such a way that it carries a large part of the bending loads. It also takes one by virtue of its generally flat panel-like construction between the beams
large part of the twisting stresses that occur in closed cars. The body offers
despite their rubber mounting on the platform, the rest of the necessary torsional stiffness.

In the cabriolet body, doubling pieces in the girders of the platform create the additional necessary Bending stiffness. The torsional stiffness will due to the ladder-like structure of the

108043/0248 " ¹⁰ "

other arranged cross member between the side beams be superior to the previous convertible type.

The platform is designed to create air ducts through the sliding and cross members in the Rear seat to be supplied with air without losing air flow to be dependent under the front seat. Such an arrangement is particularly suitable for air conditioning systems installed later, i.e. after the vehicle has been sold.

Description of one preferably !! Embodiment

The particular illustrated in the drawings Embodiment comprises a main floor panel 20 with one middle tunnel section 22 and with frontally upwardly curved parts, which have an inclined foot panel 24 and a vertical one Form bulkhead or fire bulkhead panel 26-.

At its rear end is the Kauptbodoptafel 20 provided with an upwardly bent part, which by a frontally downwardly bent part 30 of a rear seat panel a box-shaped cross member 34 forms.

The rear seat support oil contains the rear seat wanc? 32 an upwardly extending wage support portion 36 and behind it a raised and generally horizontal portion

109643/0245 - Ii -

BATH

In the glide in front of the seat back support 36, the rear seat panel 32 contains a tunnel section 40 and a raised tunnel section 42 _t which runs parallel to the carrier 34 and thereby reinforces it.

There is a rear panel behind the rear seat panel Bridge panel 44, which at its front 7, nde an angular Part 46 has, which together with the angular part 36, 38 of the rear seat panel 32 is a continuous box-shaped beam-like rear structure 48 forms.

Behind the raised bridge portion 50 is the cover panel 44 with a downwardly curved portion 52 and thereafter with a rear bridge part 54 widening towards the rear from the narrow bridge part and a raised part 56 by one inner lowered part 58 is provided. A box-shaped stiffening frame structure 60 extends over the rear End up and along the sides. Side panels expand forward to accommodate the rear side support as well to give the rear wheel housing structures additional reinforcement and rigidity and to create anchoring, as still will be portrayed.

Over almost its entire length, the main floor panel 20 is provided on its sides with stiffening elements, for example with the longitudinal corrugations or ribs 62 pressed in.

109043/0245

-12-

In the bulkhead or fire bulkhead area, the one that is bent upwards Section of the floor panel 20 is provided with vertical side flanges 64 through vertical outer parts 66, 68 and are reinforced by its front end part 103 to vertical closed-box-shaped post or To form strut structures 70.

A cowl cover panel 72 is with the tops of the Struts 70 and connected to the bulkhead structure to form a box-like rigid cowl structure.

An inverted trough shaped front seat base 74 is secured across and forms with the front floor panel a closed box-shaped transverse beam 75. To the rear, each side of the beam 75 is provided with openings 76, to deliver air to the rear passenger compartment.

Front side rail structures 80 are attached in front of the bulkhead structure and inward with the sides φ thereof.

The support structure 80 includes a lower panel component 82, an upper panel component 84, and one on each side Side panel component 86. These parts are suitably designed in the actual front member area (Fig. 7) and connected to form the closed-box-shaped front beams 80.

- 13 -

The lower front rail component 82 extends downward and widens toward its rearward end, to form a rearwardly extending portion 90 that extends along the underside of the front end of the floor 20 and the tunnel 22; and von.dem an inwardly directed outer part 92 at the end a similar extension overlapped from the other side under the front seat support 75.

The upper front rail component 84 expands and rises to its rear end, as at 94, on and is attached to the front of the bulkhead panel 26.

The front support component 86 is very wide in the vertical direction and forms part of the front wheel housing, which preferably has an opening 96 for wheel carriers and on the inside thereof a shock absorber support anchorage 98 (Fig. 4/5) is attached. At the top edge is this part with a wide one facing outwards Flange 100 provided.

Towards its rear end, the component 86 of the front member widens laterally at 102 and is at the Attached to the front of the bulkhead structure. The part 102 continues backwards into a part 103, which is the side flange 64 of the floor panel and overlapped with panels G6 and 68 completes the post or strut structure 70.

109843/0246

BATH

At the bottom, the side component PC expands and it extends downwards as a horizontal -alled part 104, which is attached to the flat surface on the underside of the Eode table 20.

A front vertical quorum board 1O6 and one on the Edge stiffened support structure 108 are between the front ends of the front support structures 80 attached.

Note that the front support structures 80 on the foot panel 24 are large, nearly closed, cross support structures 110 that create hollow box spaces, clic with the cavities of the front support structures already described 80 or the side support structures to be described 120 communicate.

In front of the front seat support beam 75 has how 8, the main floor panel 20 has an upwardly extending side flange panel 11 on each side. on, which is directed horizontally outwards and is bent at the top as a lateral channel-shaped part 114. The «doubling extension 104 of the front support structure 80, which extends so far rearwardly, is designed so that it adapts to the shape of the floor panel. A string board 116 and a floor panel 118 are designed and with these Seitenflanschcntteile connected that they one completely closed box girder 12O of considerable

- 15 -

10S8U / 0U6 ~ bad ο ««

Make greatness. The interior of the side support communicates with the space of the strut post 70 and backwards with the space within the seat base bracket 75 to the passenger compartment To supply air for heating, ventilating or cooling.

The side beams are on the inside, where they are most exposed to impact and corrosion, from being depressed Parts of the floor, especially the side flanges 112, are protected! As can be seen from Fig. 8, the Part 90 has a corrugated outer section that doubles the corrugated bottom plate as well as the inner along the inner side of the tunnel 22 to the rear extending doubling part doubled. Part 90 forms a closed one Box beam structure 122 along the lower edge of the Tunnel 22.

As shown in Fig. 9, the same side support training is maintained, except for the doubler 104 is no longer present and that the seat base support panel 74 is attached to the floor panel and the side supports is. As can be seen, the rear outer parts 92 of the front support structure are overlapped and secured, to substantially reinforce the seat support beam 75.

Fig. 10 shows the retention of the same side support design, and the sides of the rear seat panel 32

108843/0246 " ¹⁶ "

_ If _

- ίο -

are attached to it.

As shown in Figs. 1, 2, 3, 12 and 13, are backward Side beam structures 124 provided on each side, each mainly comprising an outwardly open channel member. This is at the front end (Fig. 12) Element flanged at 126 and attached to the rear upward portion 28 of the main floor panel 20. The element is closed on the outside by a rear wheel housing panel 128, which at the front end has a has outwardly directed flange portion 130 attached to the flanged end of the main side support panels 116 and 118 is attached.

The rear side support is offset inwardly from the main side support, with a reinforcing transmission element 132 is inserted into the remote zone. The part 132 is on the floor panel portion 28 as by a flange 134, attached to the side support panels 116, 118 and to the rear wheel housing panel. The structure is through the back a cup-shaped part 136, which is attached to the flansc ^ t ^ n End of the reinforcing transition element 132 is attached, reinforced.

The rear side supports 124 follow the Tafelabschnit th 36, 38, 50 and 52 and wear the same on the top. To the rear, there are 124 frames on the side girders.

108843/0245 " ¹⁷ "

BATH

SteLfungselemente 60 attached. The lower edge of the side rail 124 follows the lower edge of the rear wheel housing and stiffens it. At its upper edge is the wheel housing by an angularly curved formation 138 (Fig. 14), or if desired by added stiffening elements, stiffened.

The car body sub or platform is provided with a plurality (12 of which are shown in Figure 4) of car body support seats 140 where, as shown in Fig. 16, car body parts 142 sealed and, as by bolts 144 with elastic elements 146 and sealing means between them, are attached.

Fig. 6 shows in the form of a load diagram how the loads over the entire platform by the above described structure are distributed. The front side rails 80 transmit loads through the front end the front end structures 106 and 108. In the rear, they transmit loads through elements 90, 92 and the tunnel structure in the front cross member 75; and transmit them through the fire bulkheads, fire wall or bulkhead and cross members 110 Loads on the side beams 120. The cross beams 75, 34 and 48 transfer loads between the tunnel 22, 40 and the beams 120, 124 and the wheel housing panels 128. The frame 60 carries loads backwards. The side horizontal panels 20, 32, 36, 38, 50, 51, 56

- 18 -

and 58 with their curved and corrugated elements good for transferring the shear or shear loads between the stiffer girder, tunnel and other elements. The bridging beam 48 takes strut loads from the rear wheel supports.

It can thus be seen that the invention provides a unitary car body sub-unit or platform of relatively light weight and made of relatively simple parts but of great strength, which is ready to be completed to work as an independent unit; a unit that allows assembled a car body unit open at the bottom and completely finished and lined and then up the car body sub-unit can be lowered. The '-leise, in which the platform unit created according to the invention the objectives set and the desired advantages should be obtained from the description above become obvious.

The components referred to as "panel" or "plate" are preferably die-formed or from sheet steel represent angularly bent elements and are preferred, unless a different type of connection is expressly indicated is, along their overlapping surfaces, sander or flanges by electrical spot or seam resistance welding connected with each other.

- 19 -

103 * 43/0245

! • Jährend describes a Äusführungsbeispiel the invention for purposes of illustration, it is nevertheless to be understood that many different embodiments and variations are possible within the general inventive concept.

Claims

109643/0245

Claims (3)

Expectations 1. Platform unit or unified nib box sub-unit for automobiles, which can serve as an independent unit and belongs to the type in which the side supports and wheel housings are uniformly formed with floor panels, characterized by a quorum running board structure with a main floor board (20) and a rear panel (32, 44) and a vibrating tunnel (22) in the same; Side support structures (120) with the transverse Panel structures (20, 32) are connected; Rear wheel housing panels (128) associated with the rear Panel (32, 44) and attached to the rear of the side support structures (120); a bulkhead structure comprising a front panel (24) and a splash or fire wall panel (26) attached to the main floor panel (20); and Front support structures (80) each of which has a lower Panel component (8 2) and a side panel component (86) includes, which on the main floor panel (20) and on the Spritzwandstr uktur (26) are attached to form transverse carrier lines (110) with the same between the side supports (120) and the center tunnel (22). 2. Platform unit according to claim 1, characterized in that 100843/02 ^ 5 -ii- that the front side support structures (8O) additionally have an upper panel component (84). .3. Platform unit according to claim 1 or 2, characterized in that that the side panel components (86) each have a vertical Seitan portion (102) and further comprise a front end portion (103), the latter being a front post Linen th (66) and side pillar east elements (68) is connected to form a front bulkhead post (70) with the same. 4. Platform unit according to claim 3, characterized in that that the bulkhead post (70) forms a continuous air channel that connects with the side support structures (120) communicates. 5. Platform unit according to claim 3 or 4, characterized in that that a lower rearward extension of the front end portion (103) forms a doubling plate with the side wall (112) and the top wall (114) of the side support (120). 6. Platform unit according to one of the preceding claims, characterized in that that rear extensions (90) of the lower Tafelfcom- - III - 109343 / 024S components (82) form inner longitudinal beams (122) along the floor of the central tunnel (22). 7. Platform unit according to claim 6, characterized in that that it also has a front cross member (75), "the one with the main floor panel (20) and the side members (12O), which cooperate with the inner longitudinal beams (122) connected is. 3. Platform unit according to claim 6 or 7, characterized in σ c , that a rear cross strut (92) the inner side rails (122) connects. 9. Platform unit according to one of the preceding claims, characterized in that that the lower panel component (8 2) and the side panel component (86) with the main floor panel (20) through surface-on-surface lying horizontal flanges (104) are connected. 10. Platform unit according to one of the preceding claims, characterized in that that a U-shaped front support (108) is attached to the sides of the lower panel component (82) and one Forms cross member between the same. - IV - 109843/0245 11. Platform unit according to one of the preceding claims, characterized, claf- a shock absorber support anchor plate (93) with the Whiteboard component (36) is connected. 12. Platform unit according to one of the preceding claims, characterized in that. A rear cross beam (34) with the side beams (120) and the main floor panel (20) and the rear Panel (32) is connected. 13. Platform unit according to claim 12, characterized by rear side support (124) that with the rear Cross members (34) and the rear panel (32, 44) are connected. 14. Platform unit according to claim 13, characterized in that that a rear bridge deck girder (48) with the rear panel (32, 44) and the rear side supports (124) is connected. 15. Platform unit according to one of the preceding claims, characterized in that a plurality of car body support seats (140, 146) is attached to the rear wheel housing panel (128) and that the Side supports (120) form an elastic connection for the 109843/0246 a? Attachment of an upper car body (142, Fla. 16). 16. Platform unit according to one of claims 3-15, characterized by front bulkhead posts (70) and a rear cover panel (5 ·!) A plurality of Hagenkast support seats (14O, 146) exhibit them. 17. Platform unit according to one of claims 13 to 16, characterized by Elements (132) bridging the offset between the side beams (120) and the rear beams (124) and are connected to them. 18. Platform unit according to claim 17, characterized in that that the rear support (124) and the bridging elements (132) form a torque box connection with the side beams (1.'O) and that the depth of the rear Extension of the rear beam (124) behind the torque box is less than the depth of the latter. 19. Platform unit according to one of claims 13 to 18, characterized in that that the rear cross and longitudinal beams from channel-shaped Elements (60, 124) consist that a circumferential reinforcement; around the outer edges of the rear panels (32, 44) and the rear cover panel (54). 109643/0245