DE10262388B3 - Interior fitting for a motor vehicle - Google Patents

Abstract

Interior fitting part for a motor vehicle, which is designed as an instrument panel having a leather layer (2) as a decorative layer and a rigid carrier part as a carrier layer (6), wherein in the interior trim part a base device is formed by at least one cover device (16) formed in the carrier layer (16) ) is formed, through which in the mounted state of the instrument panel at least one airbag (7) of a safety device in the vehicle interior in front of the interior trim part is inflatable, wherein the leather layer (2) is designed in several parts such that the Airbagaustrittöffnungsbereich (9) with a separate Austrittöffnungslederlappen (10) is covered, which is releasably connected to the underlying Airbagaustrittöffnungsbereich (9) of the carrier layer (6), wherein at the Zierrand (11) forming Austrittöffnungslederlappen edge region at least partially at least one more r leather flaps (13, 19) with a trim edge (11) adjacent, and wherein in the activated state of the safety device an opening force (33) on the at least one cover (16) acts to release the airbag outlet opening (9), wherein simultaneously with the lifting of the at least one covering device (16) is also lifted off the outlet opening leather flaps (10), characterized in that between the carrier layer (6) and the leather layer (2) there is further provided a slush skin (4) connected to the carrier layer (6), with which the Leather layer (2) is detachably connected, so that in the activated state of the safety device and when an opening force (33) on the at least one by the carrier layer (6) formed covering (16) the slush skin (4) ruptures and the at least one cover (16) together with the outlet opening leather flap (10) and the slush skin part associated with the at least one covering device (16) (4) is lifted off.

Description

The invention relates to an interior trim part for a motor vehicle, which is designed as an instrument panel, according to the preamble of claim 1.

For interior parts of motor vehicles, such as instrument panels, center consoles or door panels, there are a variety of different material compositions and manufacturing processes. In order to make the vehicle interior appealing, a variety of decorative materials are used on the visible side of the interior fittings, for example plastic films, velor, fabric or artificial leather. For higher-quality interiors genuine leather is used as decorative material.

Since genuine leather is a natural material, other aspects have to be considered when processing it than is the case with artificial decorative materials. For example, the shrinkage tendency of genuine leather plays an important role in leather processing. The shrinkage plays a relatively large role especially with temperature changes. To avoid distortion, it is already known to raise real leather on rigid support members to form an interior trim part, such as an instrument panel. In such a construction, the rigid support member supports the leather layer applied thereto as a leather cover, so that shrinkage of the leather cover can be avoided. Such a built-up interior fitting with a real leather decor feels relatively hard, which is undesirable from a haptic point of view, as this is perceived by the touching person as not very pleasant and also can cause a poor quality impression.

For a pleasant feel, that is to say a pleasant feeling of touch, it is already known to produce interior parts which have a certain limited flexibility of the visible side decor when touching the surface, resulting in a soft, perceived as pleasant "soft-touch" feeling in the touching Person stops. This also gives the impression of a high quality vehicle interior equipment. Thus, it is already well known to achieve such a soft-touch feeling to back-cushion the leather layer with a conventional foam material. Due to the resilience of the foam layer, however, the leather due to its tendency to shrink in temperature or climatic cycling can disadvantageously peel off or it can lead to a wave or wrinkling of the leather decoration, since the foam material can absorb hardly any tensile stresses and due to its porous structure can also stretch relatively uncontrollably with tensile stresses. To avoid this problem is out of the EP 0 850 806 A2 already an interior trim part for vehicles, in particular for an instrument panel of a motor vehicle, known having a leather layer as a decorative layer and a rigid support member as a support layer, wherein at least partially a knitted fabric is provided as a haptic between the leather layer and the support layer.

Specifically, in this interior trim part, the knitted fabric is adhered to the surface of the carrier layer as a haptic layer, wherein the knitted fabric is either a spacer knit or a nonwoven fabric. For the exact structure and training of such a knit is on the EP 0 850 806 A2 directed. Next, a real leather layer is glued to the knitted fabric. Such a padding of the leather layer with a knitted fabric, in contrast to a back padding with a foam material on the one hand an advantageous feel, that is, a soft-touch touch feeling, and on the other hand, despite the shrinkage tendency of genuine leather ensure a secure adhesion and proper surface shape retention of Echtlederdekors. Because in contrast to conventional foam materials knitted fabrics can absorb tensile stresses due to their thread or fiber structures in addition to pressure, which can advantageously prevent detachment of the leather decoration, wherein such knitted fabrics also have the same desired softness as conventional foam materials. Such an interior trim part can thus ensure on the one hand a secure adhesion of the real leather decor and on the other hand also convey a sense of touch perceived as high-quality and pleasant.

A similar structure is also from the DE 198 15 115 A1 known.

A problem in connection with high-quality interior trim parts with a genuine leather cover as a decorative layer is that the leather layer must be designed so that through this airbag can escape into the vehicle interior and can be inflated there. Unlike standard plastic decorative layers, real leather can only be provided with material weakening in a very difficult and costly manner in order to form a defined airbag outlet opening in the leather layer as well. This is from the EP 0 639 481 A1 already known a leather layer as a decorative layer and a rigid support member as a support layer exhibiting interior trim part as an instrument panel, wherein in the interior trim part closed in the ground state by means of at least one cover formed in the carrier layer Airbag outlet opening can be formed, through which in the mounted state of the instrument panel at least one airbag of a safety device in the vehicle interior in front of the interior trim part is inflatable.

Specifically, a material weakening is formed in a leather layer, wherein on selected inner side regions of the leather layer pretreatment by means of a curing agent is performed such that on the leather layer inside of the hardener is applied in strips and the hardener penetrates the leather in the strip area to about 50 to 75% of the layer thickness , In the cured state, a material weakening in the form of a groove can then be introduced into this cured strip. In an airbag activation, a tearing along the material weakenings is therefore achieved with a force acting on the leather layer, so that a defined airbag outlet opening can be released in the leather layer. The material weakening in the leather layer, however, can only be realized with great effort and time. In addition, there is the danger here that the hardened strips will emerge on the surface of the leather layer, which is visually less attractive and leads to such a high quality interior decorating overall visual impression.

From the DE 100 20 525 A1 is a generic airbag cover with a leather surface known. From the EP 0 639 481 A1 Another airbag cover is known in which a foam material with a slush skin on the face is applied to a rigid support part.

It is therefore an object of the invention to provide an interior trim part available in which the airbag outlet by a leather layer as a decorative layer is simple and attractive appearance can be realized.

This object is achieved with the features of claim 1.

According to claim 1, the leather layer is formed in several parts such that the Airbagaustrittöffnungsbereich is covered with a separate Austrittöffnungslederlappen, which is releasably connected to the underlying Airbagaustrittöffnungsbereich the carrier layer, preferably glued. At the edge forming a Zierrand outlet opening leather flap edge region, which is preferably formed by a provided with a decorative seam and / or stitched with a decorative seam abutting edge adjacent at least partially at least another leather flap with a decorative edge. In the activated state of the safety device, an opening force acts on the at least one covering device for releasing the airbag outlet opening, wherein at the same time as the lifting of the at least one covering device, the outlet opening leather flap is lifted off.

Advantageously, with such a structure of an interior trim part in conjunction with a leather layer, preferably made of a shrink-optimized genuine leather material, a simple and inexpensive to implement possibility of forming an airbag outlet opening in the interior trim part created without having to compromise on an attractive appearance. Because of the ornamental edges of the outlet opening leather flap edge area, the desired, exclusive real leather impression is conveyed. At the same time the Austrittöffnungslederlappen can be dimensioned and designed so that it releases the underlying Airbagaustrittöffnungsbereich in the activated state of the safety device at any time, since the connection of Austrittöffnungslederlappens is designed to the underlying support layer area so that this leather flap can be easily lifted by the opening force. By the decorative seams here only the visual leather impression is conveyed without the viewer at the same time imperative receives the indication that this is a visible from the vehicle interior forth defining the Airbagaustrittöffnungsbereichs.

In the case of an outlet opening area which covers the outlet opening area on the edge side with overhang, the releasable connection, which is preferably an adhesive connection, is releasably detachable between the outlet opening tab and the carrier layer by the opening force. In principle, however, the Austrittöffnungslederlappen be dimensioned so that it is formed without edge-side projection, so that no detachment force is required for the Austrittöffnungslederlappen to detach from the underlying carrier layer.

According to the invention, a slush skin connected to the carrier layer is provided between the carrier layer and the leather layer, with which the leather layer is detachably connected, preferably adhesively bonded, such that in the activated state of the safety device and when an opening force acts on the at least one covering device formed by the carrier layer Slush skin ruptures and the at least one covering device is lifted together with the outlet opening leather flap and the slush skin part region assigned to the at least one covering device. The slush skin is known to be made of such a material that does not require prior material weakening to rupture at a particular opening force. The applied tear force is also so low that it can not hinder the deployment of the airbag.

Furthermore, underneath the leather layer, a knitted fabric as a haptic layer, preferably a nonwoven fabric, may be arranged at least in certain regions, which is designed to be adapted to the geometry of the airbag outlet opening region in the region of the outlet opening leather flap as at least one insert. In the activated state of the safety device then the at least one covering device is lifted together with the knitted fabric and the Austrittöffnungslederlappen. Thus, such a fabric, which substantially improves the feel, also in conjunction with the slush skin, can not hinder a simple and rapid opening or release of the airbag outlet opening region. The resulting with such a structure, advantageous haptics has been previously explained in detail, so that will not be discussed here in detail.

In principle, the knitted fabric between the slush skin and the leather layer can be arranged so that it floats. However, the knitted fabric is preferably connected to the leather layer and / or to the slush skin. The connection is preferably carried out by a surface bonding.

The at least one cover device in the carrier layer is preferably formed by means of its material-determining material weakenings. The material weakening may be in the form of predetermined breaking points and / or be formed only in the case of activation of the safety device by detonating cords or the like.

According to a particularly preferred embodiment, the covering device can be designed as a lid or pivoting flap which can be displaced or lifted away in the activated state from the airbag outlet opening, wherein in the case of pivoting about a pivot axis this is formed in the windshield region of the airbag outlet opening. By the latter measure it is ensured that a lid or a pivoting flap does not lift off in the direction of a vehicle occupant, whereby the risk of injury can be significantly reduced.

The advantages of an energy absorption layer, in particular an energy absorption foam layer, with an interior trim part have likewise already been explained in detail above.

Further, according to a particularly preferred embodiment of the invention, a hinge plate is arranged as a reinforcing sheet on the underside of the carrier layer, which pivots in the case of the peripherally circumferentially released for lifting at least one covering this defined about a hinge axis of the airbag outlet opening. At the same time, this hinge plate also takes on a kind of tether function.

According to a further aspect, for an interior trim part for vehicles, in particular a dashboard for motor vehicles, the haptic properties, that is to say the feeling of touch with regard to a desired soft-touch feel, can be improved even further. A slush skin, which is produced, for example, by the powder-slush process, has certain elastic properties, which in the combination according to the invention with the knitted fabric and the leather layer as a decorative layer a particularly advantageous feel, that is, a particularly pleasant feeling of touch, in which Interior fitting touching person causes. Because just as in the knitted fabric, which has a certain desired softness and can absorb, for example, by appropriate thread or fiber structures in addition to pressure and tensile loads and thus prevents detachment of the leather decoration, the slush skin on certain rubbery properties that already on their own convey a particularly pleasant feeling of touch. In combination with the knitted fabric here in conjunction with a real leather decoration over the previously known state of the art even better and perceived as a pleasant touch feeling mediating interior part available, especially when combined with exclusive and high-quality interiors when touching a qualitatively very high quality Impression conveys. It is thus taught by the structure of a particularly advantageous soft-touch feeling. In addition to this special haptic function, an even more advantageous damping of noise can be achieved by this multilayer structure with slush skin and knitted fabric, so that even excellent acoustic results for a vehicle interior can be achieved with this structure.

In principle, the knitted fabric can be connected to the leather layer and / or to the slush skin, for example by gluing, but it is also possible to arrange the knitted fabric loosely and / or floating between the leather layer and the slush skin. When bonding the knit fabric with the leather layer and / or with the slush skin, it is ensured that the knitted fabric can not migrate below the leather layer. However, the leather layer is regularly pulled over the knit and the slush skin so that the knitted fabric can be kept very well in the laid position. This is especially the case if no corresponding free space for the knitted fabric for hiking is given.

In principle, between the slush skin and the carrier layer and a plastic film be arranged, which is preferably glued to the slush skin on the one hand and with the carrier layer on the other. Likewise, the slush skin could also be applied directly to the carrier layer. However, particularly preferred is a structure in which the carrier layer further comprises at least partially an energy absorption layer on which the slush skin is applied directly or indirectly. This energy absorption layer can be produced, for example, as an energy absorption foam layer, preferably of a PU foam material. For this purpose, the slush skin and the at least partially spaced-apart carrier layer can be backfoamed with the foam material. Such a construction of the interior trim part with an additional energy absorption layer significantly increases the safety in connection with an impact on this interior trim part, for example in a head impact on an instrument panel as an interior trim part. Because of this preferably energy-absorbing foam layer can be absorbed in an impact and deformation of the interior fitting part advantageously impact energy, which affects the deformation behavior and the impact behavior overall positive. This is also supported by the slush skin and the knitted fabric, which also have a certain impact damping function, also advantageous.

In order to reduce the shrinkage tendency of a genuine leather material, the leather layer is preferably formed by a shrink-optimized genuine leather material. Furthermore, the leather layer can also be formed by individual prefabricated leather flaps which adjoin one another in a leather flap adjoining area with ornamental edges. Under ornamental edges here is understood a visually particularly appealing design of the edge or edge region of the individual leather flaps. The trim edges can be provided, for example, in the edge region with a decorative seam. Particularly preferably, the ornamental edges are formed by a beaded edge that is sewn around with a decorative seam. Such a decorative seam in conjunction with a genuine leather material causes a particularly high-quality, overall visual impression of a viewer, since this immediately makes the desired association with real leather.

In particular, in connection with beaded decorative edges, which are preferably formed by beaded edges provided with a decorative stitching, it is necessary for the formation of a flat leather layer surface that in the slush skin surface facing the leather layer, a recess associated with at least one trim edge is formed as a decorative edge trench. Moreover, such a trim edge trench also enables an exact positioning of the leather flap (s), since the decorative edge trenches are preferably dimensioned so that only the desired areas with the ornamental edges can be accommodated therein. In particular with regard to manual alignment of individual leather flaps of a leather layer, this results in an advantageous alignment and positioning aid. According to a most preferred embodiment, two trim edges of adjoining leather flaps are respectively received in the ornamental edge trench. In principle, it is possible that the knits also run in the region of the decorative edge trenches below the leather layer, so that they must then be taken into account in terms of their thickness in the dimensioning of the decorative edge trenches or be compressed so that they finished form no corrugations in the leather surface layer area. However, the knitted fabrics are preferably designed such that they do not extend into the region of the ornamental edge trenches, that is, for example, are designed as inserts.

According to a particularly preferred embodiment of the invention, at least one trough-like depression is preferably formed in the slush skin surface facing the leather layer, in addition to the at least one decorative edge trench, in which the knitted fabric is received in the mounted state. Such a trough-like depression is advantageously preferably completely surrounded by a decorative edge trench. With such a structure is advantageously achieved that in the area of the trough-like depression a prefabricated knitted fabric can be inserted as a kind of insert and can be glued, for example, with the Slushhautoberfläche in the trough-like depression. Subsequently, the individual prefabricated leather flaps can then be applied as a decorative layer, preferably glued, with an exact alignment and pre-positioning of the individual leather flaps on the ornamental edges can be done in conjunction with these decorative trim trenches. With such a structure, large areas can be created in conjunction with an interior trim part, which provide a particularly high-quality touch sensation, which also in connection with adjacent beaded decorative edges in only small and narrow areas by the decorative edge trenches a structurally simple to produce recording option has been created without disturbing the special tactile sense of touch, which allows easy formation of a substantially flat leather surface. Depending on the structural design and thickness of the individual layers or decorative edges, it may be necessary that the at least one ornamental edge trench is an integral part of the trough-like depression of the Slushhautoberfläche or also that the trough-like depression in the Slushhautoberfläche is lower than that at least one ornamental edge ditch. In principle, the interior trim part, in particular an instrument panel, can be constructed so that, for example, in the passenger-side instrument panel area, a plurality of such trough-like depressions are formed next to one another, wherein the trough-like depressions are delimited from each other by the ornamental seam trenches.

According to a further alternative embodiment, it is possible in principle for the beaded trim edges to adjoin the trough-like depression in the region, preferably in the edge region, whereby the ornamental edges of adjoining leather tabs can be fixed by the bottom side of the leather layer facing side by means of a co-edge tape. In principle, the ornamental edge trench can be dispensed with in such an embodiment. An ornamental edge trench which is nevertheless present here is then preferably designed in such a way that one end of the coiler strip is received here approximately flush with the adjacent slush skin. The knit itself is only brought into the region of the junction with the Koeperband. The Koeper band may consist of a textile or synthetic fiber fabric and is sewn from the bottom with the two adjoining leather rag by means of sewing thread, so that in each case a leather rag decorative edge is formed with a decorative seam in the joint area of the adjacent leather rag. The leather layer can be glued together with the stitched Koeperband with the knitted fabric. In principle, in all embodiments, the leather layer edge regions can be connected at least in regions by means of a co-planar with the underlying layer. Again, the Koeperband with the leather layer edge area is sewn again and then glued the Koeperband on the Slush skin. In graduated edge regions, the co-planer may accordingly also be formed around the gradation, that is to say in an approximately L-shaped cross-section.

The knitted fabric can be formed, for example, by a non-woven fabric, which is a fabric of textile fibers whose cohesion is given by the adhesion obtained by the fibers themselves or by preparation. A non-woven fabric can absorb pressure as well as tensile loads, in contrast to a conventional foam material. Likewise, a nonwoven fabric has a certain degree of elasticity, which can compensate for relative movements between the leather layer and the slush skin.

The knitted fabric can in principle also be formed by a so-called spacer knitted fabric, which has the same properties as a nonwoven fabric, and in which two textile cover surfaces are provided, which are connected to one another by a thread system and held at a distance from each other. Such textile cover surfaces prevent particularly advantageous that the spacer knitted fabric is cured in total by an adhesive.

Even if the leather layer is a shrink-optimized genuine leather material, a deformation of the slush skin as well as the underlying energy absorption foam layer may occur, particularly in stepped edge regions of an energy absorption foam layer applied to a rigid carrier layer due to the strong leather deformation force . can lead to damage to the interior trim part or to a wavy or uneven surface formation. Therefore, it is proposed to reinforce the energy absorption foam layer in the areas endangered in this regard, in particular in edge areas or, in particular, in stepped edge areas around which the leather layer is pulled around. Such a reinforcement in the edge regions can be achieved, for example, by foaming a stiffening element into the corresponding edge regions of the energy absorption foam layer and / or by partially thickening the endangered edge regions of the energy absorption layer by means of slush material. Both the foaming of stiffening elements and the partial thickening by means of slush material can be realized relatively easily and with relatively little effort in the course of the production of such an interior trim part.

Preferably, the interior trim part is an instrument panel with scoop and / or glove box and / or at least one storage compartment and / or center console attachment parts or the like, wherein in such an instrument panel basically not every area must have a haptic according to the invention. In particular, selected touch-accessible areas, such as the hutch area or the passenger-dashboard-side area, may be provided with only such a construction.

In order to produce an interior fitting part, a rigid carrier part forming a carrier layer can be coated with a slush skin in one method step. In a further method step, a knitted fabric can be applied to the slush skin as a haptic layer on this support part coated with a slush skin, and subsequently in a concluding process step this structure is covered with a leather layer as a decorative layer.

Such a method for producing an interior trim part is particularly simple and Inexpensive feasible, wherein also the advantages already mentioned above in connection with the interior trim part of the interior trim part can be achieved. In one possible method, a Galvanoform can be designed as a tool shape so that it forms in the Slushhautoberfläche a at least one beaded ornamental edge, but preferably a two adjacent beaded decorative edges associated recess as a decorative edge trench, in which the decorative edges with respect to an exact positioning of or Leather flaps aligned and can be accommodated so that a substantially flat leather layer surface trough-like depressions are formed, in which the knitted fabric, preferably as an insert is formed. Alternatively or additionally, the Galvanoform can also be designed as a tool shape so that in the Slushhautoberfläche at least one trough-like depression, preferably a plurality of adjacent, formed by Zierrand trenches limited, is added. Likewise, the Slushhautoberfläche may be formed with a trough-like depression and a decorative edge trench, which allows the sewing of adjacent ornamental edges by means of a Koeperbandes.

According to a particularly preferred process control, the entire structure is laminated after production of the leather coating, preferably press-laminated. As a result, a particularly smooth, continuous and undrawn surface of the interior trim part is achieved.

The interior trim part is an instrument panel and the airbag preferably a passenger airbag. In principle, however, other interior fittings, behind which an airbag is arranged to be constructed accordingly.

The invention will be explained in more detail with reference to a drawing.

• 1 einen schematischen Querschnitt durch einen beifahrerseitigen Bereich einer Instrumententafel,
• 2 einen schematischen Querschnitt entlang der Linie A der 1, der mehrere, durch Zierrand-Gräben voneinander getrennte wannenartige Vertiefungen zeigt,
• 3 einen schematischen Querschnitt entsprechend 1 zu Beginn der Aktivierung der Sicherheitseinrichtung, bei dem eine Öffnungskraft auf die bereits vorgeschwächte Abdeckklappe einwirkt, die bereits bis zur Slushhaut durch eingerissen ist,
• 4 einen schematischen Querschnitt entsprechend der 1 und 3 bei vollständig abgehobenem Airbagdeckel, der mittels einem Scharnierblech nach hinten aufgeschwenkt und gehalten wird, wobei eine Airbagaustrittöffnung zum Durchtritt des Airbags freigegeben wird,
• 5a eine schematische, perspektivische Draufsicht auf den beifahrerseitigen Instrumententafelbereich mit durch einen Austrittöffnungslederlappen abgedeckten Airbagaustrittöffnungsbereich,
• 5b eine schematische Querschnittdarstellung durch einen Zierrand, der durch eine mittels einer Ziernaht umgenähte Stoßkante ausgebildet ist,
• 6 einen schematischen, vergrößerten Querschnitt durch einen abgestuften Lederüberzug-Randbereich einer Instrumententafel, bei dem die Energieabsorptions-Schaumschicht mittels eines eingeschäumten Versteifungsrahmens versteift ist,
• 7 einen schematischen Querschnitt entsprechend 6, bei dem alternativ der Energieabsorptions-Schaumschicht-Randbereich mittels Slushmaterial partiell verstärkt ist,
• 8 einen schematischen Querschnitt durch eine Instrumententafel im Bereich einer wannenartigen Vertiefung, bei der aneinandergrenzende Zierränder zweier aneinandergrenzender Lederlappen mittels einem Koeperband verbunden sind, wobei die Zierränder mitsamt Koeperband im wesentlichen im Bereich einer wannenartigen Vertiefung aufgenommen sind und ein Koeperbandende im wesentlichen oberflächenbündig mit der Slushhautoberfläche in einem entsprechend gestalteten Zierrand-Graben aufgenommen ist, und
• 9 einen schematischen Querschnitt durch einen Lederüberzug-Randbereich einer Instrumententafel, bei dem der Lederüberzug mittels eines Koeperbandes auf der Slushhaut befestigt ist.

Show it:

• 1 a schematic cross section through a passenger-side area of an instrument panel,
• 2 a schematic cross section along the line A of 1 which shows several trough-like depressions separated by ornamental edge trenches,
• 3 a schematic cross section accordingly 1 at the beginning of activation of the safety device, in which an opening force acts on the already pre-weakened cover flap, which is already torn to the slush skin,
• 4 a schematic cross section according to the 1 and 3 with the airbag cover completely raised, which is pivoted and held backwards by means of a hinge plate, an airbag outlet opening being released for the passage of the airbag,
• 5a 12 is a schematic perspective top view of the passenger-side instrument panel area with the airbag outlet opening area covered by an outlet opening leather flap;
• 5b a schematic cross-sectional view through a decorative edge, which is formed by a recessed by means of a decorative seam abutting edge,
• 6 a schematic, enlarged cross-section through a stepped leather cover edge portion of an instrument panel, wherein the energy absorption foam layer is stiffened by means of a foamed stiffening frame,
• 7 a schematic cross section accordingly 6 in which, alternatively, the energy absorption foam layer edge region is partially reinforced by means of slush material,
• 8th a schematic cross-section through an instrument panel in the area of a trough-like depression, in which adjoining trim edges of two adjacent leather flaps are connected by means of a Koeperband, the decorative edges are included together with Koeperband substantially in the area of a trough-like depression and a Koeperbandende substantially flush with the surface Slushhautoberfläche in one correspondingly decorated decorative trench is included, and
• 9 a schematic cross section through a leather cover edge region of an instrument panel, wherein the leather cover is fixed by means of a Koeperbandes on the Slush skin.

In 1 is a schematic cross-section in the vehicle longitudinal direction through a passenger-side area of an instrument panel 1 shown. The instrument panel 1 has a layered structure comprising the following single layers as seen from top to bottom. At the top is a leather layer 2 arranged as a decorative layer, below the region of a knitted fabric 3 is arranged as a haptic layer, wherein the leather layer 2 preferably glued to the knitted fabric. Below is a slush skin 4 formed, which preferably also with the knitted fabric 3 is glued and applied to an energy absorption foam layer 5 is arranged. At the bottom is a dimensionally stable carrier part 6 as a carrier layer for the instrument panel 1 arranged. In the area of a passenger airbag 7 is below the support member 6, a hinge plate 8th arranged as a reinforcing sheet.

The leather layer 2 is designed in several parts such that an airbag outlet opening area 9 is covered with a separate Austrittöffnungslederlappen 10 (see also 5a) , At the exit port leather flap margins is a decorative seam 20 as a decorative border 11 with a recut edge 12 educated. To the two in 1 illustrated trim edges 11 the outlet opening leather flap 10 in each case another leather flap borders 13 at. The knitted fabric 3 is in the region of the outlet opening leather flap 10 below the leather layer 2 glued with this area. In the area of the abutting edges 12 of the adjacent leather flaps 10 and 13 is a depression in the slush skin 4 as a decorative ditch 14 trained in the decorative edge 11 which by means of a decorative seam 20 recut edge 12 is formed beaded, is added. Along the border of the ditch 14 are the adjoining leather lobes 10 and 13 exactly positionable or alignable, which is preferably done manually. In addition, a flat leather layer surface is due to the ornamental edge trenches 14 educated. In the field of knitted fabrics 3 is in the slush skin 4 a trough-like depression 15 formed in the assembled state, the knitted fabric 3 inserted as a depositor and recorded. The trough-like depression 15 in the slush skin 4 is deeper than the ornamental ditch 14 , The geometry of one in the airbag outlet opening area 9 arranged covering device 16 is due to a material weakening, here, for example, predetermined breaking points 17 in the carrier part 6 educated. The breaking point 17 can also be optional into the energy absorption foam layer 5 be executed. This is exemplary in 1 drawn with dashed lines.

In 2 is a schematic cross-section along the line A of 1 shown. This is the vehicle transverse direction, so that the dashed lines in the edge area of the instrument panel 1 illustrated component 18 may be a center console or an adjacent A-pillar area. It can be seen that several, by decorative edge trenches 14 separate, trough-like depressions 15 are arranged side by side in the vehicle transverse direction. The ornamental borders 11 the respective leather flap 10 and 13 are in the area of ornamental edge trenches 14 arranged, which are higher than the wells 15 in which the knitted fabric 3 is inserted, leaving an overall flat leather layer 2 is trained.

In 5a schematically is a perspective top view of the passenger-side instrument panel area 1 shown. The airbag outlet opening area 9 is through the outlet opening leather flap 10 covered. In the perspective view is the arrangement of the individual leather flaps 10 and 13 to recognize. In the adjoining areas of the individual leather flaps 10 and 13 and to the running in the vehicle transverse direction leather rag 19 is each a decorative border 11 by one by means of a decorative seam 20 recut edge 12 is formed, arranged. In the direction of travel 21 seen in front is to the instrument panel 1 an outflow area 22 a ventilation device not shown arranged.

In 5b is schematic and exemplary a sectional view through the decorative edge 11 shown. By means of decorative stitching 20 is the stitched beaded edge 12 educated. For clarity, the decorative stitching 20 in the other sectional views with a butt edge 12 not shown.

In 6 is a schematic enlarged cross-section through a stepped leather cover edge region 23 the instrument panel 1 shown. In the leather cover border area 23 is the energy absorption foam layer 5 by means of a foamed-in stiffening frame 24 stiffened. Adjacent to the leather plank edge area 23 is an example of a component 25 represented, for example, as the outflow area 22 from 5a can be executed. The basic structure of the instrument panel 1 is also seen here from top to bottom the leather layer 2 , the knitted fabric 3 , the slush skin 4 , the energy absorption foam layer 5 and the support member 6. With the foamed stiffening frame 24 in the energy absorption foam layer 5 is a breakout of the leather cover edge area 23 due to forces acting on them, such as forces caused by the tension of the leather layer 2 caused when shrinking, largely avoided.

An alternative reinforcement of the leather cover edge area 23 is schematically in cross section in 7 shown. Here is an energy absorption foam layer edge area 26 by means of slush material 27 strengthened. Depending on the manufacturing process can thus in the vulnerable leather cover edge regions 23 either a stiffening frame 24 or additional slush material 27 for stiffening or reinforcing the leather cover edge region 23 be introduced. The construction of the instrument panel 1 in 7 corresponds to the structure of 6 ,

In 8th is a schematic cross section through the instrument panel 1 in the area of the trough-like depression 15 shown, with the adjacent trim edges 28 the two adjacent leather lobes 10 and 13 in an alternative embodiment to that with the decorative seam 20 recut edge 12 , by means of a Koeperband 29 are connected. The ornamental borders 28 are together with the Koeperband 29 essentially in the area of trough-like depression 15 recorded, with a Koeperbandende 30 flush with the slush skin 4 in a correspondingly shaped trim ditch 31 is included.

In 9 is an alternative attachment of the leather cover edge area 23 shown schematically in a cross section. Here is the leather layer 2 by means of a Koeperband 32 on the slush skin 4 attached. In the region adjacent to the leather covering edge region 23 is the trough-like depression 15 with inserted fabric 3 to recognize. The basic structure of the instrument panel 1 in 8th or in 9 corresponds to the previously described. In all figures, the same components are provided with the same reference numerals.

When activating the in 1 shown front passenger airbags 7 affects one in 3 with a double arrow 33 drawn opening force on the cover 16 , The cover 16 is than from the airbag outlet opening 9 away displaceable lid 34 formed around one in the hinge plate 8th trained pivot axis 35 for releasing the airbag outlet opening 9 by means of the opening force of the activated front passenger airbag 7 away is relocatable. The representation in 3 corresponds to the beginning of activation of the passenger airbag 7 so that the breaking points 17 in the carrier part 6 already through the energy absorption foam layer 5 and the slush skin 4 torn through.

With completely lifted lid 34 like this in 4 is shown schematically, the airbag outlet opening 9 for the passage of the passenger airbag 7 Approved. The lid 34 is by means of the hinge plate 8th in the direction of the arrow 36 swung open and at the same time from the hinge plate 8th held. The unfolding of the passenger airbag 7 is with the arrow 37 in 4 located. The airbag outlet opening area 9 associated, separate Austrittöffnungslederlappen 10 comes complete with the lid 34 lifted. The outlet opening leather flap 10 points towards the lid 34 a supernatant 38 in the non-activated ground state of the passenger airbag 7 with the supernatant 38 associated slush skin 4 is glued. When activating the passenger airbag 7 this adhesive bond is released due to the opening force, leaving the lid 34 with the outlet opening leather flap 10 can freely swing to release the airbag outlet opening 9 ,

This is the instrument panel 1 with the leather layer 2 created as a decorative layer, on the one hand due to the knitted fabric 3 gives a good feel and the other hand, due to the separate outlet opening leather flap 10 in the area of the passenger airbag 7 ensures a reliable opening of the Airbagaustrittöffnungsbereichs 9.

LIST OF REFERENCE NUMBERS

1

dashboard

2

leather layer

3

Knitted

4

slush

5

Energy absorbing foam layer

6

support part

7

passenger airbag

8th

hinge plate

9

Airbag exit opening area

10

Outlet opening chamois

11

decorative border

12

impact edge

13

leather cloth

14

Decorative border trench

15

deepening

16

cover

17

Breaking point

18

component

19

leather cloth

20

stitching

21

direction of travel

22

outflow

23

Leather cover edge area

24

stiffening frame

25

component

26

Energy absorbing foam layer edge area

27

slush

28

decorative border

29

Koeperband

30

Koeperbandende

31

Decorative border trench

32

Koeperband

33

double arrow

34

cover

35

swivel axis

36

arrow

37

arrow

38

Got over

Claims (12)

Interior fitting for a motor vehicle, which is designed as an instrument panel having a leather layer (2) as a decorative layer and a rigid carrier part as a carrier layer (6), wherein in the interior fitting part in the ground state by means of at least one in the carrier layer (6) formed covering means (16 ) is formed, through which in the mounted state of the instrument panel at least one airbag (7) of a safety device in the vehicle interior in front of the interior trim part is inflatable, wherein the leather layer (2) is designed in several parts such that the Airbagaustrittöffnungsbereich (9) with a separate Austrittöffnungslederlappen (10) is covered, which is releasably connected to the underlying Airbagaustrittöffnungsbereich (9) of the carrier layer (6), wherein at the Zierrand (11) forming Austrittöffnungslederlappen edge region at least partially at least one more r leather flaps (13, 19) with a trim edge (11) adjacent, and wherein in the activated state of the safety device an opening force (33) on the at least one cover (16) acts to release the airbag outlet opening (9), wherein simultaneously with the lifting of the at least one covering device (16) is also lifted off the outlet opening leather flaps (10), characterized in that between the carrier layer (6) and the leather layer (2) there is further provided a slush skin (4) connected to the carrier layer (6), with which the Leather layer (2) is detachably connected, so that in the activated state of the safety device and when an opening force (33) on the at least one by the carrier layer (6) formed covering (16) the slush skin (4) ruptures and the at least one cover (16) together with the outlet opening leather flap (10) and the slush skin part associated with the at least one covering device (16) rich (4) is lifted. Interior fitting after Claim 1 , characterized in that in the case of the Austrittsöffnungslederlappens (10) covering the edge of the airbag outlet opening (9), the releasable connection between the outlet opening tab (10) and the carrier layer (6) can be released by the opening force (33). Interior fitting after one of the Claims 1 or 2 , characterized in that below the leather layer (2) at least partially a knitted fabric (3) is arranged as a haptic, which is formed in the region of the Austrittöffnungslederlappens (10) as at least one insert corresponding to the geometry of the Airbagaustrittöffnungsbereichs (9) adapted such that in the activated state of the safety device, the at least one covering device (16) is lifted together with the knitted fabric (3) and the outlet opening leather flap (10). Interior fitting after Claim 1 . 2 or 3 , characterized in that the knitted fabric (3) is arranged between the slush skin (4) and the leather layer (2). Interior fitting after Claim 4 , characterized in that the knitted fabric (3) is connected to the leather layer (2) and / or to the slush skin (4). Interior fitting after one of the Claims 4 or 5 Characterized in that, in the knitted fabric (3) facing the airbag outlet opening area (9) Slushhautoberfläche the at least one covering device (16) is formed at least one trough-like depression (15) is inserted in the knitted fabric in the assembled state (3) and added , Interior fitting after one of the Claims 4 . 5 or 6 , characterized in that in the airbag outlet opening region (9) in the leather surface (2) facing Slushhautoberfläche the at least one cover (16) has an edge circumferential recess as a decorative edge trench (14), in which at least the trim edge (11) of the Austrittöffnungslederlappens (10) with respect to the exact positioning of the leather flap (10) alignable and / or is absorbable so that a flat leather layer surface can be formed. Interior fitting after Claim 6 and 7 , characterized in that the trough-like depression (15) in the Slushhautoberfläche is lower than the decorative edge trench (14). Interior fitting according to one of the preceding claims, characterized in that the at least one covering device (16) in the carrier layer (6) by means of their geometry determining material weakenings (17) is formed. Interior fitting after Claim 9 , characterized in that the material weakening in the form of predetermined breaking points (17) and / or can be formed by detonating cords only in the case of activation of the safety device. Interior fitting according to one of the preceding claims, characterized in that the carrier layer (6) further comprises at least partially an energy absorption layer on which the slush skin (4) is applied directly or indirectly. Interior fitting according to one of the preceding claims, characterized in that on the underside of the carrier layer, a hinge plate (8) is arranged as a reinforcing plate, which in the case of peripherally released for lifting at least one cover (16) defines this about a hinge axis (35) of the Airbagaustrittöffnung (9) wegverschwenkt.

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