DE102010015057A1 - Method for manufacturing internal lining of motor vehicle, involves applying foam layer on support section in foaming tool, where two support sections are clipped or glued or riveted together within foaming tool - Google Patents

Abstract

The method involves applying a foam layer (6) on a support section (1) in a foaming tool, where another support section (2) is connected to the former support section within the foaming tool. The two support sections are clipped or glued or riveted together. The foam layer is applied on the former support section after connecting the two support sections. An independent claim is also included for an internal lining for a motor vehicle.

Description

The present invention relates to a method for producing an interior trim of a motor vehicle according to the preamble of claim 1 and to an interior trim of a motor vehicle according to the preamble of claim 8.

A method and an inner lining of the aforementioned type are known from DE 10 2005 053 479 A1 known. The inner lining described therein can be used for example as a door inner lining and has two different sections. In each of the sections a rigid support member is provided, which is designed as an injection molded part. In one of the sections, the outside of this carrier part also corresponds to the interior side facing the interior lining. In the other of the sections, the support part is provided with a foam and an outer skin applied to the foam, the outer skin serving as the visible side. The foam gives this section a softer touch. The inner lining is produced by first spraying the individual sections and possibly foaming them, and then subsequently connecting the sections to one another, for example by means of a latching connection.

It proves to be disadvantageous that for the production of the inner lining a plurality of process steps must be performed sequentially. Furthermore, it proves to be relatively expensive to clean the edge of the outer skin following the not provided with a foam layer carrier part clean.

The problem underlying the present invention is to provide a method of the type mentioned, which is more effective. Furthermore, an interior trim of the type mentioned is to be specified, which is easier to produce.

This is achieved with respect to the method by a method of the type mentioned above with the characterizing features of claim 1 and with respect to the inner lining by an inner lining of the type mentioned above with the characterizing features of claim 8. The subclaims relate to preferred embodiments of the invention.

According to claim 1 it is provided that the first and the second carrier part are joined together in the foaming tool. As a result, two method steps can be spatially and temporally combined with each other, so that overall the method can be made more effective.

It can be provided that the first and the second carrier part are clipped together or glued together or riveted together. These connection methods are on the one hand easy to implement and on the other hand ensure a firm connection between the support parts. Instead of the aforementioned types of connection, other comparable types of connection are possible, which are relatively easy to implement and ensure a similar solid connection.

There is the possibility that the foaming tool has a first and a second part, which are moved towards each other in a closing movement prior to the application of the foam layer to close the foaming tool, wherein the first and the second carrier part by the closing movement of the parts of Foaming tool are connected together. The connection of the two carrier parts by the obligatory closing movement of the foaming tool makes it possible to save a separate working step for the connection. Furthermore, the manufacturing process is safer and the rejects reduced.

It can be provided that the foam layer is applied to the first carrier part after joining the two carrier parts. By reversing the order of the method steps in comparison to the prior art, the method can be performed faster, because following the mandatory closing movement of the foaming the filling of a cavity left free with foam.

There is the possibility that prior to the closing movement of the parts of the foaming tool, the first carrier part is introduced into the first part of the foaming tool and the second carrier part into the second part of the foaming tool. In this way it can be ensured that the two support parts are pressed against each other by the closing movement of the foaming. When clipping, gluing or riveting the mentioned types of connection - this pressing together leads to the creation of the desired connection between the support parts.

It may further be provided that prior to the closing movement of the parts of the foaming tool, an outer skin, which can cover the foam layer at least partially after completion of the inner lining, is introduced together with the second carrier part into the second part of the foaming tool. Also, this outer skin is thus brought together before the connection of the carrier parts in a predeterminable position relative to the carrier parts. By the subsequent foaming of the foam layer forming foam between the outer skin and the first support member are introduced.

There is the possibility that the outer skin is clamped between the two support parts by the closing movement of the parts of the foaming tool. On the one hand, this securely holds the outer skin to the inner lining. On the other hand, the edge of the outer skin facing the second carrier part does not have to be processed properly or cut off cleanly. Rather, the edge of the outer skin may protrude beyond the edge of the second carrier part and be jammed in this area between the carrier parts.

Claim 8 provides that the outer skin is partially held frictionally between the first and the second carrier part. In particular, the outer skin may be mounted on the side of a foam layer applied to the first carrier part in the position of use of the inside of the motor vehicle. The frictional mounting then results in an easily realizable and secure additional attachment of the outer skin. There is also the possibility that the second carrier part has no foam layer and / or no outer skin. Alternatively, the second carrier part may be constructed similar to the first carrier part.

It can be provided that the second carrier part at least partly overlaps the first carrier part on the side remote from the interior in the position of use, wherein the outer skin is arranged at least in sections in the overlap region between the first and the second carrier part. If the carrier parts in the overlap region extend parallel to one another, a comparatively large contact surface can result, which ensures secure compression of the outer skin between the overlapping surfaces of the carrier parts. Furthermore, due to an overlap region, the edge of the outer skin may protrude beyond the edge of the second carrier part, so that the edge of the outer skin does not have to undergo clean processing in this area.

There is the possibility that the first and / or the second carrier part in the overlap region have a projection which projects into the area provided for the outer skin. The projection can increase the sealing effect of the foaming tool against undesired foam discharge and thus contribute to process safety.

An inner lining according to the invention can, for example, be designed as a dash panel. In this case, the areas that are easily accessible to the user can have the three-layered structure-first carrier part, foam layer, outer skin-that gives an appealing feel. Other areas of the interior trim that are poorly reachable by the user's hand, such as the areas directly on the windshield, may have a single-layered construction. In particular, a simple, not provided with foam and outer skin support member may be provided with an example grained surface in these areas. It is due to the realization of the different areas by the outer skin on the one hand and the simple support part on the other hand quite the opportunity to provide these areas without additional effort with different colors.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It shows

1 a schematic detail section through an interior trim according to the invention;

2 a schematic perspective view of an open Schäumwerkzeugs for performing the method according to the invention, wherein in the foaming tool already the carrier parts and the outer skin are introduced.

On the in 1 lower side is arranged in the use position the interior of the motor vehicle side facing the inner lining. The illustrated inner lining according to the invention comprises a first planar carrier part 1 and a second planar support part 2 , These support parts 1 . 2 can be rigid plastic parts and be designed for example as plastic injection molded parts. The in use position the interior of the motor vehicle facing the outside of the second carrier part 2 may for example have a grained structure.

The first carrier part 1 has a first section 3 , a second section 4 and a third section 5 on. In the first section 3 the first carrier part extends 1 on the side facing away from the interior in use position of the second carrier part 2 essentially parallel to this and only separated by a small gap. In which refer to the first section 3 subsequent second section 4 the first carrier part jumps 1 back to then in the subsequent third section 5 to run at a greater distance from the interior.

In the third section 5 is on the in use position the interior facing side of the first support member 1 a foam layer 6 and an outer skin bounding this to the interior 7 arranged. The foam layer 6 can be from one consist of soft polyurethane foam. The outer skin 7 For example, it may be a soft, rotationally-made skin. The interior of the outside facing the outer skin 7 is aligned with the interior facing the outside of the second carrier part 2 , so that there is a substantially flat surface facing the interior. There is the possibility that the interior of the outside facing the outer skin 7 and the interior facing the outside of the second support member 2 have different colors or different structures.

The outer skin 7 extends to the front side of the second carrier part 2 and along this to the first support part 1 approach. Then the outer skin runs 7 a little way into a space between the second support part 2 and the first section 3 of the first carrier part 1 , There is the outer skin 7 from the two adjacent to her support parts 1 . 2 held strong. An additional safeguard is provided by a projection on the first carrier part 11 causes the locally an increased force on the outer skin 7 exercises.

On the side facing away from the interior side of the second carrier part 2 this has a plurality of ^` clips 8th on, passing through appropriate openings 9 of the first section 3 of the first carrier part 1 protrude through and in this way a positive connection between the first and second carrier part 1 . 2 guarantee. The clips 8th and the openings 9 can in particular be rotationally symmetrical (see also 2 ).

Due to the fact that the transition area between the clips 8th and the second carrier part 2 rounded, the first section 3 of the first carrier part 1 a plurality of spacers 10 on.

Instead of a clip connection, an adhesive bond or a riveted joint or a comparable connection is possible.

The illustrated interior trim can be partially in a foaming tool 12 be created (see 2 ). For this example, the first carrier part 1 on a first part designed as a top 13 a foaming tool 12 attached. Furthermore, for example, the second carrier part 2 and the outer skin 7 in a second part designed as a lower side 14 of the foaming tool 12 inserted, in particular so that a section of the outer skin 7 a portion of the second carrier part 2 overlaps. Subsequently, the two parts 13 . 14 of the foaming tool 12 in a closing movement closed or folded on each other. The direction of the closing movement is in 2 through the arrow 15 indicated.

This closing movement makes the clips 8th through the openings 9 pressed so that the clip connection between the two support parts 1 . 2 is realized. At the same time, the closing movement makes part of the outer skin 7 between the second carrier part 2 and the first section 3 of the first carrier part 1 compressed or pinched. After the end of the closing movement or after closing the foaming tool 12 a lather gets into the space between the outer skin 7 and the third section 5 of the first carrier part 1 introduced to the foam layer 6 to create.

With the reference number 11 is one in the drawing plane of the 1 inwardly extending projection, extending from the first section 3 of the first carrier part 1 extends into the space in which the outer skin 7 is pressed. The lead 11 increases the sealing effect of the foaming tool 12 against unwanted foam leakage. Should foam nevertheless escape, it is due, for example, to the distance between the second carrier part 2 and the first section 3 of the first carrier part 1 not to in 1 exit below arranged visible side, but remain inside the inner lining. The interior of the interior lining has the function of a Opferkavität.

LIST OF REFERENCE NUMBERS

1

first carrier part

2

second carrier part

3

first section of the first carrier part 1

4

second section of the first carrier part 1

5

third section of the first carrier part 1

6

foam layer

7

shell

8th

Clips on the second carrier part 2

9

Opening in the first support part 1

10

spacer

11

Projection on the first support part 1

12

foaming

13

first part of the foaming tool 12

14

second part of the foaming tool 12

15

Arrow to illustrate the closing movement of the foaming tool 12

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 102005053479 A1 [0002]

Claims (10)

Method for producing an inner lining of a motor vehicle, wherein the inner lining comprises a first carrier part ( 1 ) with a foam layer ( 6 ) and a second carrier part ( 2 ), and wherein the method comprises the following method steps: - on the first carrier part ( 1 ) is used in a foaming tool ( 12 ) the foam layer ( 6 ), - the first and the second carrier part ( 1 . 2 ) are interconnected, characterized in that the first and the second carrier part ( 1 . 2 ) in the foaming tool ( 12 ). A method according to claim 1, characterized in that the first and the second carrier part ( 1 . 2 ) are clipped together or glued together or riveted together. Method according to one of claims 1 or 2, characterized in that the foaming tool ( 12 ) a first and a second part ( 13 . 14 ), which before the application of the foam layer ( 6 ) are moved towards each other in a closing movement to the foaming tool ( 12 ), the first and second support parts ( 1 . 2 ) by the closing movement of the parts ( 13 . 14 ) of the foaming tool ( 12 ). Method according to one of claims 1 to 3, characterized in that the foam layer ( 6 ) after joining the two support parts ( 1 . 2 ) on the first support part ( 1 ) is applied. Method according to one of claims 3 or 4, characterized in that before the closing movement of the parts ( 13 . 14 ) of the foaming tool ( 12 ) the first carrier part ( 1 ) in the first part ( 13 ) of the foaming tool ( 12 ) and the second carrier part ( 2 ) in the second part ( 14 ) of the foaming tool ( 12 ) is introduced. Method according to claim 5, characterized in that before the closing movement of the parts ( 13 . 14 ) of the foaming tool ( 12 ) an outer skin ( 7 ), which after the completion of the interior lining, the foam layer ( 6 ) at least partially, together with the second carrier part ( 2 ) in the second part ( 14 ) of the foaming tool ( 12 ) is introduced. A method according to claim 6, characterized in that by the closing movement of the parts ( 13 . 14 ) of the foaming tool ( 12 ) the outer skin ( 7 ) between the two carrier parts ( 1 . 2 ) is trapped. Inner lining of a motor vehicle, in particular produced by a method according to one of claims 1 to 7, comprising - a first support part ( 1 ), which has an outer skin ( 7 ), and - a second carrier part ( 2 ), characterized in that the outer skin ( 7 ) partially between the first and the second carrier part ( 1 . 2 ) is held non-positively. Inner lining according to claim 8, characterized in that the second carrier part ( 2 ) on the side facing away from the interior in the use position at least partially the first support part ( 1 ) overlaps, with the outer skin ( 7 ) at least in sections in the overlapping region between the first and the second carrier part ( 1 . 2 ) is arranged. Inner lining according to claim 9, characterized in that the first and / or the second carrier part ( 1 . 2 ) in the overlapping area a projection ( 11 ), which in the outer skin ( 7 ) projecting area protrudes.

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