DE102011011828A1 - Door for motor vehicle e.g. passenger car, has support, door unit carrier and door inner trim panel that are formed by one-piece door inner portion which is indirectly connected to outer casing - Google Patents

Abstract

The door (10) has outer casing (34) arranged at outer side of door support in a state facing with the interior of the motor vehicle door inner panel. A door unit carrier is provided for holding a door fitting portion. The support, door unit carrier and door inner trim panel are formed by a one-piece inner portion (12) of the door which is indirectly connected to the outer casing.

Description

The invention relates to a door for a motor vehicle specified in the preamble of claim 1. Art.

Doors are known from the mass production of cars, which are designed in shell construction and include interconnected steel or aluminum sheet metal shells, which are connected to separate door panels. Also, the doors comprising aluminum sheet metal shells have a weight and cost which are desirably to be reduced.

It is therefore an object of the present invention to develop a door for a motor vehicle, in particular for a passenger car, such that the door has a reduced weight and reduced costs.

This object is achieved by a door for a motor vehicle having the features of patent claim 1. Advantageous embodiments with expedient and non-trivial developments of the invention are specified in the remaining claims.

Such a door for a motor vehicle, in particular a passenger car, comprises a door carrier, an outer panel disposed on the outside of the door carrier, a door panel facing the interior of the motor vehicle and a door unit carrier for holding at least one door equipment part.

According to the invention, it is provided that the door carrier, the door unit carrier and the door inner lining, these in particular at least partially, are formed by an integral inner part of the door. Preferably, the inner part is self-supporting and / or formed as a sandwich structure. The inner part is at least indirectly connected to the outer lining and covered by the outer lining on the outside. In other words, the inner part comprises at least parts of the door inner lining. The inner part thus has a high functional integration. On the one hand, the door according to the invention is to be kept pivotable about the inner part on the body of the motor vehicle in particular about a pivot axis, wherein the door is struck, for example, to a vehicle pillar, in particular an A-pillar, the body via at least one hinge. On the other hand, at least one door equipment part, for example a loudspeaker, a door lock, a window lifter, in particular an electric window lifter, a door control device and / or an armrest is fastened to the inner part. Preferably, a plurality of such door equipment parts and in particular all the door equipment parts of the door are attached to the inner part. For this purpose, the inner part has corresponding fastening means, which are formed integrally with the inner part, in particular with the plastic of the inner part, and formed, for example, on the plastic.

The outer lining is during assembly of the motor vehicle one or the last component which is mounted. As a result, a time-long accessibility, for example, given to a receiving area of the inner part, so that the door equipment part can be mounted in a timely manner.

Thus, the door according to the invention has a low number of parts and a reduced weight, which keeps the total weight of the motor vehicle low. This is accompanied by low energy consumption for moving the motor vehicle. If the motor vehicle is driven by means of an internal combustion engine, for example, low energy consumption results in low fuel consumption and low CO ₂ emissions. If the motor vehicle is driven, for example, by means of an electric motor via a battery, then the low total weight leads to a high range.

The door according to the invention also has a particularly high rigidity and an advantageous accident behavior, since it is in the preferably self-supporting outer cladding is an accident-relevant part, which can absorb and support accident energy preferably, thus protecting occupants of the motor vehicle from serious injury. To represent a particularly high rigidity in particular of the inner part of this is at least partially provided with a foam, that is, foamed. Likewise, the inner part to increase the rigidity with a stiffening structure, in particular stiffening ribs, provided and thus formed verript. By this stiffening structure, the inner part is stiffened particularly advantageous.

The stiffening structure may comprise parts of a panel, in particular the door inner panel, the door. As a result, the door is designed as a subframe. It can be provided that an armrest at least partially disposed in and / or on the stiffening structure and / or is integrated into the stiffening structure.

Preferably, the outer lining is formed of a fiber-reinforced plastic. Aramid fibers and / or steel fibers are provided, for example, as reinforcing fibers. Thus, the outer lining has a particularly low weight and a particularly high rigidity. The outer cladding formed by at least one outer cladding part may in this case be designed in shell construction and comprise two shell parts which are at least indirectly connected to one another, wherein the shell parts, for example, both of a fiber-reinforced plastic, in particular as an organic sheet, are formed. The organic sheets are formed, for example, at least substantially of a long fiber reinforced plastic. At least one insertion part, in particular a honeycomb-shaped insert part, can be provided between the shell parts, which is formed from a plastic or from cardboard or as foam. This leads to a particularly high rigidity of the outer lining, which is accompanied by a particularly advantageous accident behavior of the door according to the invention. If the outer lining is constructed as a sandwich structure, this results in an at least substantially flat force distribution in the case of an accidental application of force to the door, the forces acting on the door through the foam and / or the stiffening ribs being particularly advantageous on structures adjacent to the door, in particular at least a vehicle pillar and / or a side wall and / or a side sill, the body of the car can be forwarded

The outer lining is preferably high quality, not yielding and very stiff and has a favorable handling, especially in a production of the door, which reduces the production time and thus the manufacturing cost of the door. To connect the shell parts can be provided that these are screwed together and / or glued. Thus, the shell parts, between which can be arranged to represent the sandwich structure of the foam, for example, for repair purposes easily and thus time and cost, and in particular non-destructively separated again.

Another advantage of the self-supporting outer lining is that thus a particularly high, far outward lying, especially the outermost, part of the door according to the invention is particularly stiff, which is beneficial for advantageous behavior of the door according to the invention in the event of an accident. For the particular exterior color of the door according to the invention, the outer lining is painted, for example, and / or coated with a film. For connecting the outer panel to the inner part it can be provided that the outer panel is connected to the inner part, preferably directly, adhesively bonded and / or screwed.

The door according to the invention also has the advantage of a particularly favorable noise behavior, since the outer lining part undergoes at least substantially no vibration excitation. Furthermore, a transmission is reduced and improved insulation. In addition, the particularly rigid and self-supporting formed outer trim part in the connection, in particular the bonding, with the inner part to handle very well. This keeps the effort and thus the time to produce the door according to the invention low, which involves low costs for the door according to the invention. In the connection, in particular the bonding, of the outer lining part with the inner part is preferably also an orientation, wherein joints and a gap of the outer trim part in particular in the vehicle longitudinal direction (x-direction) and / or in the vehicle transverse direction (y-direction) and alternatively or additionally in the vehicle vertical direction (z-direction) can be set.

Alternatively or additionally, it is possible to connect the outer lining part via a carrier element, in particular a carrier plate, with the inner part, which also enables alignment of the outer lining part in particular relative to the inner part.

A separation of the outer trim part of the inner part, for example, for repair purposes, can be done via the circumferentially circumferential, in particular completely encircling, and screwed to the inner part support plate by corresponding screw connections can be solved. In the case of bonding the outer trim part to the inner part, the adhesive bond can be loosened analogously to a pane bonding, so that the outer covering part can be detached from the inner part, for example to repair or replace the outer lining part and / or the at least one To get access door part, also this of the inner part to solve and repair and / or exchange. In this case, a connection of the at least one door equipment part with the inner part preferably takes place from an outer side, d. H. a side facing away from the interior, the inner part ago. In contrast door parts of conventional doors are folded and glued and can no longer be separated.

In an advantageous embodiment of the invention, a separating element, for example a water separation and / or an acoustic film, is provided, which is arranged between the outer lining part and the inner part and by means of which a moist space is spatially separated from a drying space of the door according to the invention. The separating element can for example be formed from a closed-cell foam and locally attached to the inner part, for example, glued to the inner part, be. Likewise, it can be provided that the separating element is clamped between the inner part and the outer lining part, in particular in the region of a curb by a shaft seal, which in particular in the case of Screwing the outer lining part is given to the inner part.

It is advantageously provided that a locking device, in particular a door lock, by means of which the door is locked in a closing a corresponding door portal closed position, is arranged in the drying room. As a result, a high functional reliability of the locking device over a long service life is ensured.

The thus formed at least substantially of a plastic door passes as an attachment of the motor vehicle not a cathodic dip painting, by means of which, for example, a shell of the motor vehicle and / or other Beplankungsteile desselbigen be provided with a base coat.

Further advantages, features and details of the invention will become apparent from the following description of preferred embodiments and from the drawing. The features and feature combinations mentioned above in the description as well as the features and feature combinations mentioned below in the figure description and / or shown alone in the figures, not only for the respectively entered combination, but also in other combinations or alone, without the scope of the invention to leave.

The drawing shows in:

1 a schematic and perspective exploded view of a door for a passenger car, in which a door support, the interior of the passenger car facing door trim and a door assembly carrier are formed by an integrally formed from a fiber-reinforced plastic inner part, which with a self-supporting and made of a fiber-reinforced plastic Außenbeplankungsteil outside is disguised;

2 a schematic side view of the door according to 1 ;

3 a schematic cross-sectional view of the door according to 2 along a section line AA in the 2 ;

4 a detail of an enlarged view of the sectional view according to 3 ;

5 a detail of an enlarged view of the door according to 3 ;

6 a schematic cross-sectional view of an alternative embodiment of the door according to FIG 5 ;

7 a schematic cross-sectional view of a further embodiment of the door according to FIG 4 ; and

8th a schematic side view of an alternative embodiment of the inner part of the door according to the preceding Fig., Which is provided with a ribbing.

The 1 shows a door 10 for a passenger car. The door 10 includes an inner part 12 , which is made of a fiber-reinforced plastic and integrally formed. Through the inner part 12 is a door inner panel, a door support and a door assembly carrier for supporting at least one door equipment part of the door 10 educated. Again 1 it can be seen, is the inner part 12 essentially cup-shaped and has a receiving area 14 in which a plurality of door equipment parts from the outside to the inner part 12 can be attached and held. Such door equipment parts are, for example, an electric window regulator, around one of the doors 10 associated speaker to a locking device for locking the door 10 in a door closing a Eintürportal the passenger car closing position to a door control unit and / or other door equipment part.

About the inner part 12 will be the door 10 on the body of the passenger car pivotally held about a pivot axis. Therefore, the inner part becomes 12 Also referred to as door support part. This is the inner part 12 over in the high direction of the door 10 according to a directional arrow 16 hinged at least substantially one above the other, for example, to a vehicle pillar of the body. These are the hinges with the inner part 12 in a respective hinge region of the inner part 12 connected. In these hinge areas an insert is preferably arranged, which is formed for example as a steel or aluminum sheet metal component. The insert is, for example, at least partially in the plastic of the inner part 12 received, for example, it is at least partially encapsulated with the plastic. Likewise, the insert with the inner part 12 be glued. The inserts serve to reinforce the inner part 12 in the hinge areas, leaving the door 10 under its own weight over a long service life without damage to the body on the inner part 12 can be held. Furthermore, this is an at least substantially planar force introduction into the inner part 12 realized. Next in particular all the door equipment parts 10 also becomes an interior of the passenger car facing armrest 18 on the inner part 12 attached. Further includes the door 10 an inside panel 23 with a carrier sheet 20 and a so-called slush skin 22 , The costume 23 is foamed. The door 10 further comprises a reinforcing member 24 by means of which the door 10 in the area of a curb 26 the door 10 reinforced on the inside.

Outside of the inner part 12 according to a directional arrow 28 includes the door 10 an absorber 30 by means of which the door 10 is insulated, in particular, the noise input into the interior through the door 10 keep low. In addition, the door includes 10 a reinforcement part 32 by means of which the door 10 in the area of the curb 26 reinforced on the outside.

The door has a Außenbeplankungsteil to the outside panel 34 on, which is self-supporting and made of a fiber-reinforced plastic in sandwich construction. The exterior planking part 34 includes an outer shell part 36 as well as with this at least indirectly connected inner shell part 38 formed of the fiber reinforced plastic. Between the outer shell part 36 and the inner shell part 38 is a foam 40 provided by means of which the Außenbeplankungsteil 34 is further strengthened. This is the Außenbeplankungsteil 34 foamed to show a high rigidity and a noise and heat insulation.

The 2 to 5 show an embodiment of the door 10 according to 1 , where in the 4 an Indian 3 shown area A and in the 5 an Indian 3 shown area B is shown enlarged. Area A shows the door 10 in the area of the curb 26 while area B is the door 10 in an area of a side sill 42 or a side wall of the body of the passenger car shows.

Like that 3 to 5 it can be seen, is the Außenbeplankungsteil 34 with an outside, in the circumferential direction according to a directional arrow 44 circumferentially completely closed and annular reinforcement part 45 for reinforcing the curb 26 connected, for example, by a bond 48 glued to this. Further, the absorber 30 to recognize, by means of which a damp room and a drying room of the door 10 spatially separated. Furthermore, the absorber acts 30 as water separation and acoustic foil. It is a fixation 50 provided by means of which the Außenbeplankungsteil 34 relative to the reinforcing part 45 in particular in the vehicle vertical direction (z-direction) according to a directional arrow 52 is fixed or vice versa.

Between the outer planking part 34 and the inner part 12 is a disc slot 54 formed, in which a disc 56 , in particular a side window, is received movably in the vehicle vertical direction. At the inner part 12 is on a the interior of the motor car according to a directional arrow 58 facing side of the disc a shaft seal inside 60 arranged, with which the disc shaft 54 between the disc 56 and the inner part 12 at least essentially against the penetration of water into the disk shaft 54 is sealed. Outside of the disc 56 and thus on a the interior according to the directional arrow 28 opposite side of the disc 56 is a second seal 62 provided with which the disc shaft 54 between the disc 56 and the outer planking part 34 against ingress of water into the disc slot 54 at least substantially sealed. The manhole seal inside 60 and the seal 62 include sealing lips 64 , which on the corresponding side of the disc 56 issue. Furthermore, the manhole gasket inside 60 and the seal 62 a respective plug-in receptacle 66 , via which they are attached to a corresponding socket flange and fixed so.

The inner part 12 includes a profile part 68 , which two circumferentially closed hollow chambers 70 having. The hollow chambers 70 serve in particular additional reinforcement to a ribbing 102 ( 8th ) of the inner part 12 , The hollow chambers 70 may be formed at least substantially as an open U-shape. Furthermore, the inner part comprises 12 the carrier sheet 20 and the slush skin 22 , which as lamination of the inner part 12 acts and faces a passenger compartment and thus can be seen by occupants of the passenger compartment. The carrier sheet 20 is therefore necessary to the slush skin 22 to be able to apply with the desired high perceived value. Production-wise, the slush skin can 22 with this high value impression not directly on the inner part 12 be laminated. One between the carrier sheet 20 and the slush skin 22 arranged or trained cavity may be foamed.

The 5 shows the door 10 in area B of the side sill 42 , In the 5 is a sidewall cladding 78 the body recognizable. In the area B is the outer planking part 34 with the inner part 12 about a bond 48 ' connected. Furthermore, a main seal 80 provided, by means of which an ingress of water into the interior is avoided. The carrier sheet 20 is with the inner part 12 by means of a clip element 82 clipped. The main seal 80 can also be attached to the inner part 12 be sprayed.

The 6 shows an alternative embodiment of the door 10 according to 5 in area B of the side sill 42 , In the area B is the outer planking part 34 by means of a bond 48 '' with the circumferential direction according to the directional arrow 44 circumferentially completely closed and annular reinforcement part 45 connected, which acts as a carrier sheet. The carrier plate is via a screw connection 84 with the inner part 12 screwed, about which the outer planking part 34 on the inner part 12 is held. In the area of screwing 84 is a cover 86 provided, which also as a cover of the screw 84 acts and which can act as a joint seal. Again 6 it can be seen, is the side skirts 42 , which is assigned to a side wall, formed in shell construction and comprises an inner shell part 88 and an outer shell part 90 , which are joined together and also to be assigned to the side wall.

The 7 shows an alternative embodiment of the door 10 according to 4 in the area A. Like the 8th it can be seen, is the Außenbeplankungsteil 34 about a bond 48 glued to the carrier sheet, which in turn on the inner part 12 held, for example, screwed and / or glued. Furthermore, the profile part 68 of the inner part 12 a recess 92 on, through which a recording 94 is formed, in which noses 96 protrude projecting. The manhole seal inside 60 has a plug-in area 98 with to the noses 96 corresponding barbs on. The plug-in area 98 is in the recording 94 plugged in, with the barbs of the mating area 98 with the noses 96 form respective back grips, so that the shaft seal inside 60 especially firm on the inner part 12 is fixed. The manhole seal inside 60 further comprises a trained example of a metal or a particularly hard plastic insert 100 on, by means of which the shaft seal inside 60 reinforce a shape preservation of the shaft seal inside 60 is increased.

The 8th shows an alternative embodiment of the inner part 12 , The inner part 12 is with the ribbing 102 provided and by the ribbing 102 stiffened. The ribbing 102 For example, at least substantially formed of a plastic and preferably to the inner part 12 molded. In the 8th recognizable are recessed areas 104 , so-called stop surfaces, which are at least foamed. From the outside on the very stiff Außenbeplankungsteil 34 acting forces, for example, as a result of an accidental application of force are on the ribbing 102 transfer. This can be the door 10 absorb and support the forces particularly well.

Claims (10)

Door ( 10 ) for a motor vehicle, in particular a passenger car, with a door carrier, with an outside of the door carrier arranged outer lining ( 34 ), with a door interior facing the interior of the motor vehicle, and with a door assembly carrier for supporting at least one door equipment part, characterized in that the door carrier, the door assembly carrier and the door inner lining by a one-piece inner part ( 12 ) the door ( 10 ) are formed, which at least indirectly with the outer lining ( 34 ) connected is. Door ( 10 ) according to claim 1, characterized in that the outer lining ( 34 ) is self-supporting and / or formed as a sandwich structure and / or that the inner part with a stiffening structure ( 102 ), in particular a stiffening rib structure ( 102 ) is provided. Door ( 10 ) according to one of claims 1 or 2, characterized in that the inner part ( 12 ) is formed of a fiber-reinforced plastic, in particular of a carbon fiber reinforced plastic. Door ( 10 ) according to one of the preceding claims, characterized in that the inner part ( 12 ) in at least one hinge receiving area for fixing a hinge of the door ( 10 ) on the inner part ( 12 ) at least one, in particular made of a metal or of a plastic reinforcing element, in particular a Einlegerteil having. Door ( 10 ) according to claim 4, characterized in that the reinforcing element at least partially in the plastic of the inner part ( 12 ) is recorded. Door ( 10 ) according to one of the preceding claims, characterized in that the outer lining ( 34 ) and the inner part ( 12 ) via at least one screw connection ( 84 ) and / or at least one adhesive bond ( 48 . 48 ' . 48 '' . 48 ''' ) are interconnected. Door ( 10 ) according to one of the preceding claims, characterized in that the outer lining ( 34 ) is formed in shell construction and at least two interconnected shell elements ( 36 . 38 ). Door ( 10 ) according to one of the preceding claims, characterized in that at least a carrier element ( 45 ), in particular a carrier sheet ( 45 ), via which the outer lining ( 34 ) on the inner part ( 12 ) is held. Door ( 10 ) according to claim 8, characterized in that the carrier element ( 45 ) as in the circumferential direction ( 44 ) the door ( 10 ), in particular completely, circumferential ring is formed. Door ( 10 ) according to one of the preceding claims, characterized in that at least one intermediate element ( 30 ), in particular a film ( 30 ), is provided, by means of which a wet room and a drying room of the door ( 10 ) are spatially separated from each other.

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