WO2013026571A1

WO2013026571A1 - Molded part and method for producing same

Info

Publication number: WO2013026571A1
Application number: PCT/EP2012/003557
Authority: WO
Inventors: Vlad Radu Muntean
Original assignee: Faurecia Innenraum Systeme Gmbh
Priority date: 2011-08-22
Filing date: 2012-08-22
Publication date: 2013-02-28
Also published as: DE102011111270A1

Abstract

The invention relates to a molded part (1, 2b), in particular an interior trim part for a motor vehicle, having a carrier part (4), at least one first decorative layer section (6) and a second decorative layer section (8), which is different from the first decorative layer section (6), wherein a visible side (12) of the carrier part (4) is at least partially covered by the first decorative layer section (6) and the second decorative layer section (8), adjoining one another on a border (10). According to the invention, a decorative element (30) covers the border (10) on the visible side (12) of the carrier part (4) made of fiber-reinforced plastic, in particular of natural fiber-reinforced plastic. The invention further relates to a method for producing such a molded part (1, 2b).

Description

Interior trim part and method for its production

The present invention relates to a Innenverkleidungsteillnnenverkleidungteil and a method for producing an interior trim part.

Interior trim parts for motor vehicles are known from the prior art, which has a carrier, which on its visible side with two different

Decorative layers was provided. Usually, the vehicle interior facing side of the molding is referred to as the visible side.

The object of the present invention is to provide an interior trim part or molded part with a carrier part, with a visually attractively designed by two different decorative layer sections visible side and a method for its preparation.

This object is solved by the features of the independent claims. Further embodiments are given in the dependent on these subclaims.

According to a first aspect of the invention, provision is made for an interior trim part (1) for a motor vehicle having a carrier part (10) made of a plastic and at least two decorative layer sections (21, 22) forming a visible side (S1) of the interior lining part (1) ) extending from two edge portions (21a, 22a), which are adjacent to each other along the support member (10) and extend along to each other, in a mutually opposite directions on the support member (10), such that the decorative layers (21, 22) lie next to one another in their planar extent,

According to one embodiment of the interior trim part according to the invention, it is provided that the support part has a connection area depression (15) in which edge regions (23, 24) situated on the decorative layer sections (21, 22) are located, which adjoin the adjoining edge sections (21a, 22a) each abut, so that in each case the first visible side (S1) forming surfaces of the edge regions (23, 24) form a decorative layer recess (25),

According to one embodiment of the interior trim part according to the invention it is provided that on the edge regions (23, 24), which in each case one of

Decorative layer portions (21, 22) are located, a cover member (30) is connected to these respectively connected, which is shaped so that this decorative layer recess (25) [[in the longitudinal direction L in sections] in the longitudinal extent of the overlapping part (30) seen at least partially filled and that the visible side (S1) forming the first surface (30a) of the cover part (30) together with first surfaces (28a, 27a) of the decorative layer sections (21, 22) a decor layer recess ( 25) balancing, uniform overall contour of the

Form the visible side (S1).

According to one embodiment of the interior trim part according to the invention, it is provided that the connection region (25) is formed by edge regions (23, 24) of the decorative layer sections (21, 22) which lie next to one another on the carrier part and which engage at the respective adjacently extending edge sections (21a, 22a) abut.

According to one embodiment of the interior trim part according to the invention, provision is made for the connection region (25) to be formed by overlapping edge regions (23, 24) of the decorative layer sections (21, 22) which rest against the respective adjacently extending edge sections (21a, 22a).

According to one embodiment of the interior trim part according to the invention, it is provided that a first of the decorative layer sections (21, 22) is formed from a cover film and a second of the decorative layer sections (21, 22) from a cover film and one on a second, to the first Surface (27a, 28a) opposite to the opposing surface (27b, 28b) located foam layer is formed.

According to one embodiment of the interior trim part according to the invention, it is provided that a first of the decorative layer sections (21, 22) and a second of the decorative layer sections (21, 22) consist of a cover film and one on a second, too The thickness of the foam layer of the first of the decorative layer sections (21, 22) is at least 1, 5 times greater than the thickness of the first layer (27a, 28a) opposite surface (27b, 28b) Foam layer of the second of the decorative layer sections (21, 22) or vice versa.

According to one embodiment of the interior trim part according to the invention, it is provided that the foam layer is a PU (polyurethane) foam.

According to one embodiment of the interior trim part according to the invention, it is provided that at least one of the decorative layer sections (21, 22) is formed from a cover film made of a polyolefin-based material.

According to one embodiment of the interior trim part according to the invention, it is provided that at least one of the two decorative layer sections (21, 22) is translucent. In this case, the decorative layer sections (21, 22) can be dyed unterschiedlcih.

According to one embodiment of the interior trim part according to the invention, it is provided that at least one of the two decorative layer sections (21, 22) is connected to the support (4) on the visible side (12) without intermediate layer, or that at least one of the two decorative layer sections (21 , 22) and the carrier part (10) on the visible side (S1) a haptic layer, in particular a knitted fabric, fleece, textile or a film, is arranged.

According to one embodiment of the interior trim part according to the invention, provision is made for a plurality of decorative layer sections (111, 112, 113, 121, 122) to form on the carrier part (10) a connection region (25) which forms respectively adjacent edge regions in a

Terminal area depression (15) is located, wherein on each connection area (25) a cover part (30) is arranged. Each of the decorative layer sections can be designed differently depending on the visual impression (translucent or not, with its own color and different color, own and different narration), hardness and haptics (whiteness). In this way, a one Interior trim part and thus an interior or cokpit give an emotionally stimulating extra.

According to a further aspect of the invention, provision is made for: a method for producing a molded part (2a, 2b), in particular an interior trim component for a

Motor vehicle, comprising at least the steps: in a press-forming tool with a first and a second

Tool part arranging at least a first of the decorative layer sections (21, 22) on at least one part of a first surface of a fiber-forming material mat provided for forming a carrier part (10), in particular one

Naturfaserformstoffes, with a first surface (27a) for forming a visible side (S1) of the inner lining part (1), on the fiber-forming mat adjacent to at least a second, different from the first decorative layer portion second decorative layer section (21, 22) the first decorative layer section,

Arranging a covering part (30) on respectively first surfaces of the edge regions of the decorative layer sections (21, 22) forming a connection region (25), and forming and joining at least the fiber-forming material mat to the first decorative layer section (21) in a compression molding tool , 22) and the second decorative layer section (21, 22) and connecting the decorative layer sections (21, 22) with the overlapping part (30), wherein a first

Tool part of the press-forming tool, on which the fiber-forming material mat abuts, one for forming a connection area recess (15) of the

having to be produced carrier part corresponding tool part recess in the contour-giving surface of the first tool part, so that in the tool part recess the overlapping part (30) and the edge regions (23, 24) are received, and the second tool part in one of the Werkzeugteil- depression opposite Area has a uniform contour. According to one embodiment of the method according to the invention it is provided that during the forming of the carrier (4) in the region of the boundary (10) with a

Recess (16) for at least partially receiving the decorative element (14) is provided.

According to one embodiment of the method according to the invention, it is provided that the decorative element (14) on the visible side (12) of the fiber molding material covering the border (10) is disposed before forming, and the decorative element (14) with the fiber molding material and the first decorative layer (6 ) and the second decorative layer (8) are formed together and connected.

According to one embodiment of the method according to the invention, it is provided that after the forming, the decorative element (14) on the visible side (12) of

Fibrous molding material, the border (10) covering is arranged, and the decorative element (14) is fastened in particular by welding, gluing or clipping.

According to one embodiment of the invention, it is thus provided that the two decorative layer sections, also referred to below as "decorative layers", touch each other along a boundary on the visible side of the molded part two decorative layers different

Have surface textures and thus different haptics.

The interior trim part according to the invention can be used in vehicles, for example as door side parts, headliner, dashboards or

Instrument panels. The interior trim part according to the invention has a planar design and has a substantially planar or predetermined by the respective design three-dimensional contour with convex and concave areas, and optionally one or more openings and recesses for trim and controls such as buttons, switches and knobs for windows and mirrors. For fixing an interior trim part or molding according to the invention in the passenger compartment or on a vehicle door and for holding handles, controls and trays on the molding, the molding can also be equipped with attachments (retainer). To produce the interior trim part according to the invention, fiber-forming material is hot-pressed. The fiber molding material can be made of plastics or plastic-containing

Composite materials such as acrylonitrile-butadiene-styrene (ABS), polypropylene (PP) be. As additional materials textile fabrics of hemp, sisal, flax, kenaf and / or wood components, such as wood fibers, wood flour, wood chips or paper, bound with binders are used.

The fiber-forming material, in particular the natural-fiber-forming material, which later forms the carrier part, and the decorative-layer sections are arranged in a production device before they have been joined together and partially formed. For this purpose, the manufacturing device used has a pressing tool with two

Pressing tool halves on. At least one of the two pressing tool halves is thermally conductively connected to a heating in order to heat this

Press tool half to heat the fiber molding material and the decorative layer sections, after the pressing tool was closed by merging the two pressing tool halves. The combined effect of temperature and pressure overcomes the yield point or softening temperature of the fiber-forming material and the decorative layer sections. As a result, a cohesive

Connection formed between the fiber-forming material and the decorative layer sections. If now on the fiber-forming fabric two decorative layer sections, e.g. are arranged on the side, the decorative layer sections are formed, which has the consequence that the two decorative layer sections from each other and thus form a gap that releases a portion of the support member.

The solution of the object of the invention relates to a molding, in particular

Interior trim part for a motor vehicle, comprising a support part, at least a first decorative layer section and a second decorative layer section, wherein adjacent to each other by the first decorative layer sections and a second, different from the first decorative layer section, decorative layer portion at a boundary Visible side of the carrier part is covering.

According to the invention, a decorative element covers the border on the visible side of the

Carrier part made of fiber-reinforced, in particular natural fiber reinforced plastic. Thus, it is possible in a surprisingly simple manner, from fiber molding material, in particular made of natural fiber molding material to produce carrier part by hot pressing, which have a visually appealing by two decorative layer sections visible side, wherein a formed by forming during hot pressing gap is covered by the decorative element. Conveniently, the decorative element has a length corresponding to the length of the gap, while the width of the

Decor element is selected greater than the width of the gap to ensure reliable coverage of the gap.

The decorative element can be applied to the carrier part with the two decorative layer sections after hot pressing, or the decorative element is placed before the hot pressing the boundary between the two decorative layer sections, formed together with the fiber molding material and the two decorative layer sections and joined together.

In the context of the invention, the term fiber molding material refers to a textile

Fabrics, i. in particular a woven, knitted or non-woven fabric comprising fibers, chips, shavings or mixtures thereof. An example of one

Fibrous molding materials are wet or air-laid or carded nonwovens. The nonwovens may contain natural or synthetic fibers or mixtures of natural and synthetic fibers as well as chips or wood chips. As natural fibers, for example, fibers of wood, kenaf, hemp, jute, flax, Chinese grass

(Boehmeria nivea), rattan, soy, okra (Abelmoschus esculentus), banana, bamboo, coconut, coconut, cotton, curaua (pineapple lucidus), abaca (Musa textilis), pine, pineapple, bast palm (Raphia farinifera) and / or sisal be used. As synthetic fibers, carbon fibers, fibers of polyester, acrylic, aramid, Twaron, Kevlar, Technora, Vinalon, Cylon and / or polypropylene can be used.

Depending on its total weight, the fiber-forming material may contain 60 to 80% by weight of natural fibers, 15 to 30% by weight of polyester fibers and 5 to 15% by weight of a thermoplastic binder. For example, the fiber-forming fabric contains polyester fibers having a length of about 50 to 80 mm and natural fibers having a length of about 2 to 20 mm. To produce the fiber molding material, for example, wood chips from pine or spruce wood or kenafstängel be cooked under a pressure of 5 to 25 bar and shredded with a disc refiner. The resulting natural fibers are glued with thermoplastic binder, preferably with acrylate resin and dried by means of a fiber dryer to a residual moisture content of 5 to 20 wt .-%, based on the weight of the glued natural fibers. On a thin pad or

Transport fleece are first the polyester fibers and subsequently with the

Binders glued natural fibers laid and partially oriented. The resulting two-ply fiber web is compacted by means of rollers and a needle device to a needle felt and assembled by means of a cutting device into mats.

The fiber-forming material may also, based on its total weight 30 to 70 wt .-% natural fibers and 70 to 30 wt .-% fibers of one or more thermoplastic polymers, in particular fibers of polypropylene and / or propylene, copolymers, and optionally additives, such as Binders, fillers and / or dyes, wherein the proportion of optional additives 0.5 to 15 wt .-%, based on the total weight of the fiber molding material. In this

Embodiment serve the fibers of one or more thermoplastic polymers as binders, which are plasticized during hot pressing of the fiber molding material and solidify on cooling and the natural fibers stick together or form a solid matrix in which the natural fibers are embedded. Furthermore, the fiber molding material, in each case based on its total weight 40 to 60 wt .-%

Natural fibers and 60 to 40 wt .-% fibers of one or more

contain thermoplastic polymers. The fiber-forming material is prepared in a similar manner as described above, wherein the natural fibers and the fibers of one or more thermoplastic polymers are first mixed together and optionally placed on a thin underlay or transport fleece. The

Mixing of the fibers preferably takes place in a turbulent air flow or in a swirling device. Following this, the amount of fiber is mechanically compressed to a web, possibly oriented and by means of a

Cutting device made-up. The fiber-forming material may, in addition to natural fibers and fibers of one or more thermoplastic polymers, other synthetic fibers, in particular

Carbon fibers, fibers of polyester, acrylic, aramid, Twaron, Kevlar, Technora, Vinalon, Zylon included. In the context of the present invention, the term "polymers" encompasses both homopolymers and copolymers of the abovementioned

Polymer grades.

The mat-like fiber-forming materials have a thickness of 5 to 30 mm, preferably 25 to 20 mm and a basis weight of 80 to 4000 g / m 2, preferably from 500 to 2500 g / m 2, and more preferably from 1200 to 2200 g / m 2.

The two decorative layer sections may be formed by decorative films. The decorative films may be formed one or more layers. The total thickness of the

Decorative films is in the range of 40 to 1000 pm, preferably 60 to 200 pm and in particular 80 to 120 pm. The material of the decorative films contains a polymeric material. In this case, a "polymeric material" is understood as meaning a material which contains more than 60% by weight, preferably more than 80% by weight and optionally up to 100% by weight of a polymer or a mixture of two or more polymers, The at least one polymer-also referred to below as the matrix polymer-is, for example, a thermoplastic polymer or

Thermoplastic repeating, i. heat and reshape several times. However, the matrix polymer may also be selected from the group comprising polyolefins, polyamide, polyethylene, polyvinyl chloride, polyesters, polyacrylates, polypropylene, polylactides and / or mixtures thereof. The decorative element may be made of a material that corresponds to the material of one of the two decorative layer sections or the material of the matrix.

The molded part has at least two decorative layer sections that adjoin one another at a boundary. However, the molded part can also have more than two decorative layer sections, wherein these decorative layer sections are each arranged adjacent to each other at boundaries, that is, if the molded part more than two

Decorative layer sections, the decorative layer sections border on more than one boundary, namely at two borders together. The decorative element is arranged in the area of the border so that it completely covers the border. For this purpose, the decorative element can be arranged on the support part. It is preferably provided that the carrier part has a recess in the region of the boundary into which the decorative element is at least partially inserted. The recess may have a depth which corresponds at least to the thickness of the decorative element. Thus, a molded part with a flat, that is provided in the region of the border no disturbing elevations having visible side. According to a first preferred embodiment, the first decorative layer section and the second decorative layer section are arranged overlapping at the border. By this overlapping arrangement, a safety margin is provided, the differences in the deformation of the two decorative layer sections during forming

can compensate, in which the overlap area is reduced. If the carrier part has a depression in the region of the boundary, the depression can have a thickness which corresponds at least to the thickness of the decorative element plus the two decorative layer sections to form a molded part with no disturbing one

Provide surveys with visual pages.

According to a second preferred embodiment, the first decorative layer portion and the second decorative layer portion are at the border with a

Minimum distance greater than zero spaced apart. Between the first

Decorative layer portion and the second decorative layer is thus formed a gap. If the carrier part has a depression, the two decorative layer sections are arranged so that the gap is located in the depression. This makes it possible to reduce the depth of the depression in the region of the gap by the thickness of the decorative layer sections. Therefore, the degree of deformation is reduced by the gap to form the recess.

One of the two decorative layer sections can be transparent, so that the support part located below the decorative layer sections is visible from the visible side. In addition, one of the decorative layer sections may be non-transparent, so that the support part lying under the decorative layer sections is invisible from the visible side and only the e.g. to see colored decorative layer section from the visible side.

Preferably, it is provided that at least one of the two decorative layer Translucent sections. By means of a translucent decorative layer section, an optically particularly appealing molding is provided, the visual impression of which is composed of a mixture of the support part material and the decorative layer sections, since the decorative layer sections are only partially translucent.

The two decorative layer sections may have the same or different haptic properties. Thus, a molding can be provided in which the different optical design of the two decorative layer sections is enhanced by their different haptic impression. It is preferably provided that at least one of the two decorative layer sections

intermediate layer is connected to the carrier part on the visible side. That is, the at least one of the decorative layer portions is disposed directly on the support member without interposing an intermediate layer. Furthermore, it is preferably provided that a haptic layer, in particular a knitted fabric, fleece, textile or a film, is arranged between at least one of the two decorative layer sections and the carrier part on the visible side. This haptic layer then forms a

Interlayer. Through such a haptic layer, the haptic on the visible side of the molded part can be changed in a simple manner in the desired manner in order to obtain a haptically attractive molded part.

The invention further relates to a method for producing a molded part from natural fiber-reinforced plastic, in particular an interior trim part for a motor vehicle, comprising at least the steps:

Arranging at least one first decorative layer portion on at least a part of a side of a fiber-forming material, in particular one

Naturfaserformstoffes, which forms the visible side of a carrier part of fiber-reinforced plastic, in particular of natural fiber reinforced plastic of the molding,

Arranging at least one second decorative layer section, which is different from the first decorative layer section, on at least one other part of the visible side of the fiber molding material such that the first decorative layer section and drt second decorative layer section bordering each other at a boundary at least partially cover the visible side of the support member.

The method further includes the following steps in any order:

Arranging a decorative element on the visible side of the fiber molding material, such that the boundary is covered, and

Forming and joining at least the fiber molding material and the first decorative layer portion and the second decorative layer portion.

Thus, it is possible in a surprisingly simple manner, from fiber molding material, in particular made of natural fiber molding material to produce carrier part by hot pressing, which have a visually appealing by two decorative layer sections visible side, wherein a formed by forming during hot pressing gap is covered by the decorative element.

For the production, e.g. a pressing tool with two pressing tool halves used, wherein at least one of the two pressing tool halves is thermally conductively connected to a heater to heat over heating of this pressing tool half the fiber molding material and the decorative layer sections, after the pressing tool was closed by merging the two pressing die halves. Due to the combined effect of temperature and pressure, the

Yield point or softening temperature of the fiber molding material and the decorative layer sections overcome. As a result, a cohesive connection between the fiber-forming material and the decorative layer sections is formed. For this purpose, the fiber-forming material, in particular the natural fiber molding material, which later forms the carrier part, and the two decorative layer sections are arranged in one of the pressing tool halves, before they have been assembled and partially reshaped. In this case, the two decorative layer sections are arranged, for example, in abutment on the visible side of the fiber molding material. Conveniently, the decorative element has a length corresponding to the length of the gap, while the width of the decorative element is selected to be greater than the width of the gap in order to ensure a reliable covering of the gap.

With respect to the term fiber molding material and with respect to properties of the material of the decorative layer sections and the decorative element, reference is made to the above statements, which are also applicable here.

With the method, a molding with two decorative layer sections is produced, which adjoin one another at a boundary. However, the carrier part may also be provided with more than two decorative layer sections, wherein these decorative layer sections are each arranged adjacent to one another at boundaries, ie, if the shaped part has more than two decorative layer sections, the decorative layer sections border on more than one border namely at two borders.

The decorative element is arranged in the area of the border so that it completely covers the border. For this purpose, the decorative element can be arranged on the support part. It is preferably provided that, during the forming, the carrier part is provided in the region of the border with a recess for at least partially receiving the decorative element. The recess is formed during the forming of the fiber molding material, so that an additional step for forming the depression is eliminated. The decorative element forms a type of stamp that forms the recess. Thus, the decorative element forms as his own stamp the

Deepening. So there are no structural changes to the pressing tool required. The recess are formed to a depth which corresponds at least to the thickness of the decorative element. Thus, a molded part with a flat, that is provided in the region of the border no disturbing elevations having visible side. In a first, preferred embodiment, it is provided that before forming the decorative element on the visible side of the fiber molding material, the border is arranged covering, and the decorative element with the fiber molding material and the first decorative layer portion and the second decorative layer portion are formed together and connected. It is therefore arranged in front of the closing of the pressing tool in addition to the fiber-forming material and the decorative layer sections, the decorative element in the region of the boundary between the two decorative layer sections. By closing the pressing tool and heating above the yield point or softening temperature of the fiber-forming material, the decorative layer sections and the decorative element are firmly bonded together. Thus, a molding of fiber reinforced plastic with two decorative layer sections in one

Work step to be established.

According to a second, preferred embodiment, it is provided that the decorative element on the visible side of the fiber molding material is arranged covering the boundary before forming, and the decorative element is attached in particular by welding, gluing or clipping. First of all, in a first step, the carrier part and the first decorative layer section and the second decorative layer section are produced by hot pressing, e.g. assembled by means of a pressing tool to form a blank. The blank is removed from the pressing tool and then attached in a second step, the decorative element. It is a precise arrangement and positioning of the decorative element on the border after the

Forming possible.

The present invention will be explained in more detail with reference to the attached

Drawings. Show it

Figure 1a is a sectional view of a first embodiment of a

Interior trim part according to the invention, in which a cover part provided for the interior trim part is not shown,

FIG. 1b shows the interior trim part according to the FIGURE, in which the cover part is shown, Figure 2 is an exploded view of the interior trim part of Figure 1 or 2, and

FIG. 3 is a sectional view of a second embodiment of the interior trim part according to the invention,

Figure 4 is a perspective view of another embodiment of the interior trim part according to the invention.

It is based on the figures 1a, 1 b and 2, a first embodiment of the

inventive molding 1 explained.

The molded part 1 according to the first exemplary embodiment has a carrier part 10, a first decorative layer section 21, a second decorative layer section 22, a decorative element or covering part 30.

The carrier part 10 is formed from a fiber-reinforced plastic. In the present embodiment, the support member 10 made of a natural fiber reinforced

Plastic.

On the visible side 10b of the carrier part 10, the first decorative layer section 21 and the second decorative layer decorative layer section 22 are arranged and, as will be described below, materially connected to one another. The first

The decorative layer portion 21 and the second decorative layer portion 22 may be differently colored or deviated from, e.g., as in the present embodiment. be the same color, but different haptics formed.

The support part 10 has the recess 16. The recess 15 extends in a direction away from the visible side 12 of the support part 4. The recess 15 has a depth which corresponds to the thickness of the decorative element 30. Further, the recess 16 has a width and length corresponding to the width and length of the decorative element 30, so that the decorative element 30 is inserted into the recess 15 so that the facing side 12 of the decorative element 30 with the first

Decorative layer section 6 and the second decorative layer section 8 a flat, ie free of cracks or edges, surface forms. The decorative layer sections (21, 22) which extend from two edge sections (21a, 22a) which lie adjacent to one another and run along one another on the carrier part (10) to form a connection region (25), are in mutually opposite directions Directions flat on the support member (10), so that the decorative layers (21, 22) are adjacent to each other in their planar extension. The carrier part has a connection area depression (15), in which edge regions (23, 24) located on the decorative layer sections (21, 22) are situated, which rest against the adjoining edge sections (21a, 22a) in each case that each first the visible side (S1) forming surfaces of

Edge regions (23, 24) form a decorative layer recess (25). On the

Edge regions (23, 24) which are located on in each case one of the decorative layer sections (21, 22), a cover part (30) is in each case connected to these, which is shaped such that this the decorative layer depression (25) [ [in the longitudinal direction L in sections] in the longitudinal extension of the overlapping part (30) at least partially fills and that the visible side (S1) forming the first surface (30a) of the overlapping part (30) together with first surfaces (28a, 27a) of the decorative layer Sections (21, 22) form a the Dekorschicht- depression (25) balancing, uniform overall contour of the visible side (S1).

The first decorative layer section 21 and the second decorative layer section 2 are arranged in the recess 15 so that a gap remains at the boundary 25 between the decorative layer section 6 and the second decorative layer section 22, i. the first decorative layer portion 21 and the second decorative layer portion 22 are spaced apart from each other by a minimum distance greater than zero. Of course, the molded part 1 can be provided with more than the two decorative layer sections. The decorative layer sections adjoin one another at several boundaries 25.

Accordingly, a depression 15 can then be arranged at each boundary 25.

The decorative element 30 conceals the decorative layer recess or border 25 located in the depression 16 between the first decorative layer section 21 and the second decorative layer section 22. For better anchoring of the decorative element 30 with the first decorative layer section, and / or the second decorative layer Section and / or the support member 10, the decorative element pins 18, which in the penetrate said elements. The pins 18 can improve the

Anchoring barbs have. Thus, the molded part 1 has a pleasing visual appearance, wherein the decorative element 30 of its color and / or its haptic properties of the first decorative layer section 6 and / or to the second decorative layer section 8 may be adapted to the visual appearance of the Form part 1 to uniform. Alternatively, the decorative element 30 may also have a coloring deviating from the coloring of the first decorative layer section 21 and the second decorative layer section 22, in order to make the visual appearance more attractive through optical contrasts. These optical contrasts can be supplemented by different haptic properties of the decorative element 30 in order to enhance the visual impression.

It will now be with reference to FIG 3, a second embodiment of

inventive molding 1 explained.

In contrast to the first exemplary embodiment, in the case of the molded part 1 according to the second exemplary embodiment, the first decorative layer section 21 and the second decorative layer section 22 are arranged overlapping in the recess 16 in the region of the border 25. Accordingly, the Verteifung 16 of the molding 2b according to the second embodiment has a greater depth than the recess 16 of the molded part 1 according to the first embodiment. In addition to the decorative part 30, this also allows the overlapping section of the first decorative layer section 21 and the second decorative layer section 22 to be accommodated in the recess 15, thus providing a molded part 1 with a flat surface on its visible side 12. The molded part 2b can be seen more than the two decorative layer sections. Here, too, the decorative layer sections adjoin one another at several boundaries 25. Accordingly, a depression 15 can then be arranged at each boundary 25.

For the production of such molded parts 1, 2b according to the two embodiments, for example, a pressing tool (not shown) is used with two pressing tool halves, wherein one of the two pressing tool halves is thermally conductively connected to a heater. In one of the two pressing tool halves is in present embodiment as fiber molding material inserted a natural fiber molding material, which later forms the support member 10 of the molding 10. On the side which later forms the visible side 12 of the molded part 1, 2 b, the first decorative layer section 21 and the second decorative layer section 22 are arranged in the form of decorative film sections. It goes without saying that, of course, more than the two decorative layer sections 6, 8 can be arranged on the visible side 12 of the molded part 1, 2b.

In this case, the first decorative layer section 6 and the second decorative layer section 8 are arranged so that they overlap in the region of their border 25, or the first decorative layer section 6 and the second decorative layer section 8 are arranged so that in the area Border 25 between them a gap remains.

In a further step, the decorative element 30 is arranged on the border 25 between the first decorative layer section 21 and the second decorative layer section 22. Now, the pressing tool is closed and heated by activating the heating of the fiber-forming material, the first decorative layer portion 21 and the second decorative layer portion 22 and the decorative element 30 to its softening or yield point and so firmly bonded in one step. At the same time penetrate the pins 18 depending on their location in the first decorative layer portion 21, and / or the second decorative layer portion 8 and / or de carrier part 10, thus improving the anchoring of the decorative element 30 with these elements Further, in this step the shaping of the pressing tool halves effects a forming in which the recess 16 is formed, by pressing the decorative element 30 into the fiber molding material, so that the finished molded part 1, 2b has a flat surface on its visible side S1, but due to the

different colors and / or haptics of the two decorative layer sections 6, 8 and the decorative element 30 is a visually and / or haptic appealing

Has manifestation.

Alternatively, only the fiber-forming material, the first decorative layer section 21 and the second decorative layer section 22 can be inserted into a pressing tool as described above, bonded together and formed in a material-locking manner. There is one Press tool half formed to that during forming the recess 15 is formed by a stamp. Thus, a blank (not shown) is obtained and removed from the pressing tool, which consists of the carrier part 10 with the recess 15, the first decorative layer portion 21 and the second decorative layer portion 22. In a further step in the recess 15, the decorative element 30 is inserted and fixed, eg by welding, gluing or producing a clip connection, and thus the molded part 1 completed.

FIG. 5 shows an interior trim part in the form of an insert panel, wherein on the support part (10) a plurality of decorative layer sections (111, 112, 113, 121, 122) has a connection region (25) on respectively bordering edge regions. each located in a terminal area depression (15), wherein on each terminal region (25) a cover part (30) is arranged.

The cover film 21 may in particular be formed from a textilien layer. Also, this can be made of leather or synthetic leather. Alternatively, the decorative layer may be a compact film. The film layer may in particular be formed from TPO (thermoplastic polyolefin) or from PVC (polyvinyl chloride).

The decorative layer 20 may also be formed or consist of more than two layers. By way of example, the decorative layer 20 may be formed from a cover film 21 and a foam layer as well as a reinforcing layer situated between them, in particular of the type described above.

The method according to the invention for producing an interior trim part for a motor vehicle comprises the steps: in a compression molding tool with a first and a second one

Natural fiber molding material, having a first surface (27a) for forming a visible side (S1) of the interior trim part (1), on the fiber-forming material mat, arranging at least one second second decorative layer section (21, 22), which is different from the first decorative layer section, adjacent to the first decorative layer section,

Tool part of the Pressverform tool on which rests the fiber-forming mat, a for forming a connection area recess (15) of the carrier part to be produced corresponding tool part recess in the contour-giving surface of the first tool part, so that in the tool part recess the cover part ( 30) and the edge regions (23, 24) are accommodated, and the second tool part in a region lying opposite the tool part depression has a uniform contour profile.

In addition, it can be provided in the method: The production of the interior trim part 1 can be carried out in particular by a compression molding process. In this case, the support parts may be formed as a solid, so in itself rigid and in particular cured molding as a starting material, on the one

according to the invention provided decorative layer 20 is laminated. It can be provided that the stable support member 10 in a mold (not shown in the figures) is inserted, which has a first tool part with a first shaping contour surface and a second tool part with a second shaping contour surface. For example, the carrier part 0 is placed on the first shaping contour surface. Furthermore, it can be provided that the decorative layer is applied to the first shaping contour surface. It can be provided that on the first tool part and / or the second tool part negative pressure is generated in such a way that on the respective contour surface fitting material, so the support member or the decorative layer is fixed to the respective contour surface. By moving the tool parts a connection of decorative layer and carrier layer. It can be provided that a corresponding pressing pressure is exerted on the. Furthermore, it can be provided that the tool parts or one of the tool parts is heated in order to bring the decorative layer and the carrier part in a particularly connectable state, for example, in which a corresponding or layer which faces the respective other connection partner, is melted. Alternatively or additionally, it is also possible to use an adhesive which, before the collapse of the

Tool parts on the first surface 10a of the support member 10 and / or on the second surface 20b of the decorative layer 20 is applied. ,

Claims

Patent claims

1. interior trim part (1) for a motor vehicle with a carrier part (10) made of a plastic and at least two on this laminated a visible side (S1) of the inner lining part (1) forming decorative layer sections (21, 22) extending from two edge portions ( 21a, 22a), with the formation of a

Connection region (25) on the support member (10) adjacent to each other and extend alongeineinader, in each opposite directions extend flat on the support member (10), so that the decorative layers (21, 22) are juxtaposed in their planar extension, wherein the carrier part has a connection area depression (15), in which edge regions (23, 24) located on the decorative layer sections (21, 22) are located, which abut respectively on the mutually adjacent edge sections (21a, 22a), so that each first the visible side (S1) forming surfaces of

Edge regions (23, 24) form a decorative layer recess (25), wherein on the edge regions (23, 24) which are located on each one of the decorative layer sections (21, 22), a cover part (30) connected to these respectively is located, which is shaped such that this at least partially fills the decorative layer depression (25) [[in the longitudinal direction L in sections] in the longitudinal extent of the overlapping part (30) and that the visible side (S1) forming the first surface (30a ) of the overlapping part (30) together with first surfaces (28a, 27a) of the decorative layer sections (21, 22), the decorative layer depression (25) compensating, uniform overall contour of

Form the visible side (S1).

2. interior trim part (1) according to claim 1, wherein the

Connection area (25) is formed by adjacent to each other on the support part Edge regions (23, 24) of the decorative layer sections (21, 22), which bear against the respective adjacently extending edge portions (21a, 22a).

3. interior trim part (1) according to claim 1, wherein the

Connecting region (25) is formed by overlapping edge regions (23, 24) of the decorative layer sections (21, 22) which bear against the respective adjacent edge portions (21a, 22a).

4. interior trim part (1) according to one of claims 1 to 3, wherein a first of the decorative layer portions (21, 22) is formed from a cover sheet and a second of the decorative layer portions (21, 22) of a cover sheet and a on one second, to the first surface (27a, 28a) opposite oriented surface (27b, 28b) located foam layer is formed.

5. inner lining part (1) according to one of claims 1 to 3, wherein a first of the decorative layer sections (21, 22) and a second of the decorative layer sections (21, 22) of a cover sheet and a second, to the first The thickness of the foam layer of the first of the decorative layer sections (21, 22) is at least 1.5 times greater than the thickness of the foam layers of the first layer (27a, 28a)

Foam layer of the second of the decorative layer sections (21, 22) or vice versa.

6. interior trim part (1) according to one of claims 4 to 5, wherein the

Foam layer is a PU (polyurethane) foam.

7. interior trim part (1) according to any one of the preceding claims, wherein at least one of the decorative layer portions (21, 22) are formed from a cover sheet of a polyolefin-based material.

8. inner lining part (1) according to one of the preceding claims, wherein at least one of the two decorative layer portions (21, 22) is translucent.

9. inner lining part (1) according to any one of the preceding claims, wherein at least one of the two decorative layer sections (21, 22) between the layer with the carrier (4) on the visible side (12) is connected, or that between at least one of the two decorative layer Sections (21, 22) and the support member (10) on the visible side (S1) a haptic layer, in particular a knitted fabric, fleece, textile or a film is arranged.

10. interior trim part (1) according to any one of the preceding claims, wherein on the support part (10) has a plurality of decorative layer portions (111, 112, 113, 121, 122), which in each case to one another edge portions

Forming connection area (25) which is located in each case in a terminal area depression (15), wherein on each connection area (25) a cover part (30) is arranged.

11. A method for producing a molded part (2a, 2b), in particular one

Interior trim component for a motor vehicle, comprising at least the steps: in a compression molding tool with a first and a second

Tool part arranging at least a first of the decorative layer portions (21, 22) on at least a part of a first surface of a for forming a

Support part (10) provided fibrous material mat, in particular a Naturfaserformstoffes, with a first surface (27 a) for forming a

Visible side (S1) of the inner lining part (1), on the fiber-forming material mat, arranging at least one second second decorative layer section (21, 22), which is different from the first decorative layer section, adjacent to the first decorative layer section,

Arranging a covering part (30) on respectively first surfaces of the edge regions of the decorative layer sections (21, 22) forming a connection region (25), and forming and joining at least the fiber-forming material mat with the first decorative layer section (21) in a compression molding tool , 22) and the second decorative layer portion (21, 22) and connecting the decorative layer sections (21, 22) with the overlapping part (30), wherein a first tool part of the Pressverform- tool on which the fiber-forming mat is applied, a for forming a

Connection area recess (15) of the carrier part to be produced corresponding tool part recess in the contour-giving surface of the first tool part, so that in the Werkzeugteil- recess the overlapping part (30) and the edge regions (23, 24) are received, and the second tool part in one of the tool part recess opposite area a uniform

Has contour.

12. The method according to claim 11, characterized in that during the forming of the carrier (4) in the region of the boundary (10) with a recess (6) for at least partially receiving the decorative element (14) is provided.

13. The method according to claim 11 or 12, characterized in that prior to forming the decorative element (14) on the visible side (12) of the fiber molding material, the boundary (10) is arranged covering, and the decorative element (14) with the Formed fiber material and the first decorative layer (6) and the second decorative layer (8) are formed together and connected.

14. The method of claim 11 or 12, characterized in that after forming the decorative element (14) on the visible side (12) of the fiber molding material, the boundary (10) is arranged covering, and the decorative element (14) in particular by welding, gluing or Clips is attached.