• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a motor vehicle interior component (1) made of a fiber composite material comprising a matrix (7) of a thermoplastic material in which first fibers (8) are embedded, whereby further fibers (9) are embedded in the matrix (7) a middle layer (4), which is formed between two layers (2, 3) are arranged, and the central layer (4) as fibers exclusively the further fibers (9).
    公开号:AT515022A1
    申请号:T50697/2013
    申请日:2013-10-28
    公开日:2015-05-15
    发明作者:Markus Dipl Ing Dr Draxler；Karl Lasch
    申请人:Greiner Perfoam Gmbh；
    IPC主号:
    专利说明:

    The invention relates to a motor vehicle trim component made of a fiber composite material comprising a matrix of a thermoplastic material in which first fibers are embedded, and a motor vehicle trim component of a fiber composite comprising at least one core layer and at least one cover layer, the cover layer being made of a thermoplastic reinforced with first fibers is formed.
    EP 0 657 281 B1 discloses a multilayer component consisting of a core made of a plastic foam made of primary material and optionally associated with flakes of plastic foam and at least one cover layer arranged on a surface of the core and positively and positively connected to it with a supporting body of fibers or filaments be¬kannt, wherein the fibers or threads of the support body are embedded in a cover layer forming the layer of thermoplastic material and on die¬se at least formed on the core and frictionally or positively with this ver¬bunden.
    The object of the present invention is to provide a vehicle interior trim part with a weight per unit area of not more than 2,500 g / m 2, which has a high compressive rigidity.
    This object of the invention is achieved in the case of the aforementioned motor vehicle inner lining part on the one hand in that further fibers are embedded in the matrix, wherein the further fibers are arranged in a middle position between two layers which have exclusively the first fibers as fibers, and on the other hand by the fact that the core layer is likewise formed from a thermoplastic plastic reinforced with further fibers, the core layer containing exclusively the further fibers as fibers.
    The advantage here is that the middle layer or the core layer compared to the foam core layer according to the above cited prior art has a higher strength, this strength is adjustable on the basis of the fiber content within certain limits. Thus, on the one hand, the subsequent layer or cover layer is given better support, so that the automotive interior trim component has a higher compressive strength. Nevertheless, due to the fiber content in the middle layer or the cover layer, a relatively low surface weight can be achieved. Furthermore, due to the fiber content of the central layer or the core layer, the acoustic behavior of the automotive interior trim component is not excessively worsened compared to the foam core of the component of EP0 657 281 B1. Due to the fiber placement both in the middle layer or the core layer and in the subsequent layer or cover layer, the dimensional stability can also be improved because the fibers contribute to the dimensional stability of the automotive interior fitting component, even if it is exposed to an elevated temperature. Of course, with elevated temperature, it is not meant that the automotive trim component is heated to the melting or softening temperature of the plastic.
    According to a variant embodiment of the automotive interior trim component, provision is made for the relative proportion of the thermoplastic material in the middle layer relative to the further fibers to be higher than the relative proportion of the thermoplastic material in each of the two layers relative to the first fibers , between which the middle layer is arranged. It is thereby achieved that the Mittel¬lage the automotive interior trim component has a higher elasticity than the two subsequent layers, but the automotive interior trim component by the two subsequent layers also has a corresponding compressive stiffness. Due to the higher elasticity of the middle layer, the component can be exposed to higher deflections without the vehicle interior component completely breaking. In addition, however, this also an improvement of the sound insulation properties is achieved, since so that the layers a different
    Can have vibration behavior, whereby a larger frequency range of a sound wave spectrum can be covered.
    Preferably, the proportion of the thermoplastic in the core layer is selected from a range of 35% to 45% by weight. The rest on 100Gew .-% form the other fibers. In the context of the invention, it has been found that, surprisingly, the compressive strength can be significantly improved with a proportion of the thermoplasti¬ plastic from this area. It is presumed that with such a composition of the core layer it is possible that under pressure loading the loaded covering layer in the loaded area can partially escape into the core layer, whereby a part of the pressure load can be intercepted via the fiber-reinforced core layer.
    It can further be provided that at least some of the further fibers have a lower tensile strength than the first fibers. It is thus achieved that the directional dependence of the mechanical properties in the core layer or the middle layer is reduced. In addition, the introduction of force into the layer or cover layer adjoining the middle layer can thus be influenced. It can thus be avoided that the outer layers suffer premature damage in the event of overloading of the automotive interior trim component. It is therefore possible that even if (micro) cracks have already occurred in the core layer or the middle layer, the vehicle Interior equipment component is reusable and does not need to be replaced.
    Preferably, the first fibers are selected from a group comprising glass fibers, glassy mineral fibers, carbon fibers, natural fibers and mixtures thereof. It can thus be given a high mechanical strength to the outer layers or the cover layer.
    It can further be provided that the further fibers are selected from a group comprising synthetic fibers and natural fibers as well as mixtures thereof. It can thus be used for central layer thus essentially of inexpensive fibers which act only in the manner of a filler. Nevertheless, however, a certain reinforcement of this core layer or middle layer is achieved by the fiber inclusion in the core layer or in the middle layer. By using these fibers in the middle layer or the core layer, however, the weight of the automotive interior trim component can also be reduced or a higher layer thickness of the automotive interior trim component can be realized with the same weight, if so desired.
    Preferably, the first fibers are at least 80% oriented in one direction, so that the mechanical strength of the automotive trim component can be better adapted to the load cases. It is thus possible subsequently to make the automotive interior trim component with a thinner wall, as a result of which overall weight can be saved. Weight reduction is known to be a crucial factor in the reduction of fuel consumption in the automotive industry.
    It can further be provided that the further fibers are oriented at least 80% in the direction of the first fibers, whereby the mechanical strength in this direction can be further improved.
    Preferably, the first fibers and the further fibers have a fiber length of at least 20 mm, whereby the carrying capacity of the automotive trim component can be improved.
    The first fibers and / or the further fibers may be needled. The needling achieves a better cohesion of the flattening tool for locating the vehicle interior fitting component. In addition, however, a higher strength can also be achieved through improved power flow in the finished automotive interior trim component.
    It may be provided that the thermoplastic of the cover layer and the thermoplastic of the core layer are made of the same polymer. It is thus achieved that due to the better material compatibility of the polymers used, the composite of the cover layer with the core layer has a higher adhesive strength of the layers to each other, whereby the danger of delamination can be significantly reduced.
    According to further embodiments it can be provided that at least a portion of the first fibers in certain areas in the central position and / or at least a portion of the further fibers in certain areas in at least one of the central layer subsequent layers or at least a portion of the first fibers in the core layer and / or at least a portion of the other Fa¬sern protrude in some areas in the outer layer. On the one hand, therefore, the semi-finished product for manipulation during the production of the automotive interior equipment component is given a better cohesion. On the other hand, however, a better connection of the cover layer (s) to the core layer is also achieved thereby, whereby the structural strength of the automotive interior trim component can be improved.
    For a better understanding of the invention, this will be explained in more detail with reference to the following figures.
    Each shows in a schematically simplified representation:
    1 shows a detail of a first embodiment of a motor vehicle interior component in cross section.
    2 shows a detail of a further embodiment variant of a motor vehicle interior component in cross section;
    Fig. 3 shows a detail of another embodiment of a motor vehicle interior component in cross section.
    By way of introduction, it should be noted that in the differently described embodiments, the same parts are provided with the same reference numerals or the same component designations, wherein the disclosures contained in the entire description apply mutatis mutandis to the same parts with the same reference numerals. same component names can be transferred. Also, the location information chosen in the description, such as up, down, laterally, etc. related to the immediately described and illustrated figure and are to be transferred to the new situation mutatis mutandis in a position change.
    In Fig. 1, a detail of a first embodiment of a motor vehicle interior component 1 is shown in cross section. The automotive interior trim component 1 is designed as a single layer.
    The automotive interior trim component 1 can be, for example, a car roof, a hat rack, a trunk lining, a boot floor or a loading floor, etc. It does not mean any automotive components that are substituted for body parts.
    In particular, the automotive interior trim component 1 is therefore a component which is arranged in the passenger compartment or in the boot.
    The automotive trim component 1 comprises a first layer 2 and a second layer 3. Between these two layers 2, 3 a Mit¬tellage 4 is formed.
    The two layers 2, 3 may form the outer layers of the automotive interior trim component 1. However, it is also possible for at least one of these layers 2, 3 to have at least one further layer on an outer surface 5 and / or 6. Such layers are in particular decorative layers, such as e.g. a felt, etc., as known for such automotive trim components 1 of the prior art. It should be achieved with this at least one further layer that the layers 2 and 3 are not visible in the installed state of the automotive interior trim component 1.
    The layers 2, 3 and the middle layer 4 are gebil¬det of a fiber composite material or consist of this. This fiber composite has a matrix 7 with fibers embedded therein, the fibers being formed by first fibers 8 and further fibers 9. In this case, the first fibers 8 are embedded in the first and second layers 2, 3 and the further fibers 9 are embedded in the middle layer 4.
    In particular, the first fibers 8 and the further fibers 9 (as viewed in the surface of the automotive trim component 1) are completely embedded in the matrix.
    The matrix consists of a thermoplastic material. In particular, the thermoplastic plastic is selected from a group comprising or consisting of polypropylene (PP), polyamide (PA), polyethylene (PE), polyester.
    The first fibers 8 are preferably selected from a group comprising glass fibers, vitreous mineral fibers, carbon fibers, natural fibers, and blends thereof.
    The second fibers 9 are preferably selected from a group comprising synthetic fibers and natural fibers as well as mixtures thereof.
    The synthetic fibers are in particular polyethylene terephthalate (PET) fibers, polyester fibers or polypropylene fibers.
    It should be noted that the matrix is in any case different from the first and second fibers 8, 9.
    As natural fibers, use is preferably made of cotton fibers, especially chewy cotton fibers, hemp fibers, kenaf fibers, flax fibers.
    The middle layer 4 has as fibers exclusively the further fibers 9. Thus, a sequence with respect to the fibers of first fibers 8, further fibers 9, first fibers 8, thus, arises within the interior trim component 1 of the vehicle as viewed in FIG ,
    It should be pointed out in this connection that the further fibers 9 in FIG. 1 are shown significantly shorter than the first fibers 8. This serves exclusively to better illustrate the difference between these fibers. However, it can not draw any conclusion on the actual circumstances. So it is not necessarily provided that the first fibers 8 are longer than the other fibers 9, although this is possible.
    It should be noted that after the automotive trim component 1 of FIG. 1 has only a single matrix material, it is possible to distinguish the individual layers within the automotive trim component 1 only via the first fibers 8 and the further fibers 9. The determination that one layer ends and another layer begins can be made by a transition from the first fibers 8 to the wider fibers 9 taking place in this region. If an intermediate region is present in which no fibers are contained, that is to say only formed by the matrix 7, the layer thickness of this region is divided in each case in half between the two adjoining layers.
    A preferred embodiment of the automotive interior trim component 1 has the following structure (without optional cover layers or decorative layers, as stated above):
    Layer 2: PP / glass fibers and / or natural fibers
    Middle layer 4: PP / PET (+ possibly cotton fibers) or PP / carbon fiber layer 3: PP / glass fibers and / or natural fibers
    As can be seen from this example, it is also possible within the scope of the invention that the fibers of a layer are formed by a fiber mixture. By way of example, the further fibers 9 in the middle layer 4 may be formed by a mixture of PET fibers and cotton fibers. It is also possible that the first fibers 8 of the layer (s) 2, 3 are formed by a mixture of glass fibers and carbon fibers. It is possible that only one of the two layers 2, 3 has such a mixture and the respective other layer 2, 3 has unmixed first fibers 8.
    The proportion of first fibers 8 in the first layer 2 can be selected from a range of 25 wt .-% to 40 wt .-%. The remainder to 100 wt .-% in this first layer forms the matrix 7 of the thermoplastic material.
    The proportion of first fibers 8 in the second layer 3 may be selected from a range of 25 wt .-% to 40 wt .-%. The remainder to 100 wt .-% in this first layer forms the matrix 7 of the thermoplastic material.
    The proportion of further fibers 9 in the middle layer 3 is preferably selected from a range of 45% by weight to 65% by weight. The remainder to 100 wt .-% in this first layer forms the matrix 7 of the thermoplastic material. In particular, the proportion of further fiber 9 in the middle layer 3 can be selected from a range of 55% by weight to 62% by weight.
    Consequently, the proportion of the matrix 7 at the middle layer can be between 35% by weight and 55% by weight. In the event that the first fibers 8 consist of a fiber mixture of two types of fibers, a first proportion of the first type of fiber may be between 70% by weight and 85% by weight, based on the total composition of the first and / or second layer 2, 3. The remainder of the total fiber content is formed by the second fiber type fibers. For example, the fiber blend may consist of 70% to 85% by weight PP and 15% to 30% by weight polyester fibers. The information on the proportions refers to the fiber mixture. In the event that the further fibers 9 consist of a fiber mixture of two types of fibers, a first portion of the first type of fiber between 20 wt .-% and 60 wt .-%, in particular between 20 wt .-% and 40 wt. %, based on the total composition of the middle layer 9. The rest of the above-mentioned total fiber content form the fibers of the second type of fiber.
    Thus, for example, the middle layer 9 can have 40% by weight of PP, 30% by weight of PET fibers and 30% by weight of cotton fibers.
    It is also possible for the first fibers 8 and / or in particular for the other fibers 9 to use recycled materials, ie materials originating from the reprocessing of materials.
    The manufacture of the automotive interior trim component 1 can take place in such a way that the first fibers 8 and the further fibers 9 are provided with a plastic granulate of the thermoplastic for the matrix 7 and this mixture is subsequently inserted into a molding press in which the plastic is melted and thus the fibers are embedded in the matrix 7. The molding is preferably carried out under pressure.
    However, instead of using a plastic granulate, filaments of the thermoplastic material are preferably used, which are processed together with the first fibers 8 and the other fibers 9 to form a nonwoven fabric. This fleece is then shaped in turn in a molding press under speed and pressure to the automotive interior trim component 1, wherein the fibers of the thermo-plastic plastic melt and form the matrix 7.
    Furthermore, it is possible that the fibers 8, 9 are not processed as a nonwoven, but as individual fibers.
    However, the use of a nonwoven has the advantage that it is easier to process and that the fiber density or thread density is relatively low, whereby the wetting of the fibers 8, 9 with the thermoplastic can be carried out more easily and better.
    It is possible that each separate webs of the first fibers 8 and the plastic fibers for the matrix and the other fibers and the plastic fibers are formed for the matrix and from these webs in the sequence by the desired sequence of layers by stacking the nonwovens is made.
    It is also possible that the automotive interior trim component 1 has at least one further fiber-reinforced layer, which is or are subsequently formed on the first layer 2 and / or the second layer 3. The matrix 7 of these further layers is in turn formed by the thermoplastic which also forms the matrix 7 of the first layer 2, the second layer 3 and the middle layer 4. However, the fibers of this further layer (s) may be different from the fibers in the first layer 2 and / or the fibers of the second layer 3 and / or the middle layer 4.
    It should be mentioned in this connection that the fibers 7 of the first layer 2 are different from the fibers 7 of the second layer 3.
    Furthermore, it is possible that the middle layer 4 has at least two partial middle layers or is formed by these, whereby these at least two partial middle layers also differ only by the fibers used. The Teilmittella¬gen can also have a different area spread. So it is e.g. it is possible for one of the at least two sub-layers to extend only over a fraction of the area of the other sub-layer. It is thus possible in this area a corresponding adaptation of the mechanical properties to a desired property profile of the automotive interior trim component 1.
    A sub-center layer is understood to mean a layer of the middle layer 4 (viewed in cross-section as shown in FIG. 1) which can be distinguished from another layer of the middle layer 4 due to different further fibers 9, whereby the further fibers 9 of each sub-layer are from the preceding one In the case of the above-mentioned group, each sub-center layer does not contain any fibers which are mentioned in the group for the first fibers 8 above.
    FIG. 2 shows a further embodiment of the motor vehicle interior component 1, which is possibly independent of itself, wherein the same reference numerals or component designations as in the preceding FIG. 1 are used again for identical parts. In order to avoid unnecessary repetition, reference is made to the detailed description relating to FIG. 1 or reference is made.
    Shown in Fig. 2, in turn, a section of the vehicle interior trim component 1 in cross section.
    The automotive interior trim component 1 according to FIG. 2 differs from that according to FIG. 1 in that that according to FIG. 2 has a multilayer structure. In the specific embodiment, the automotive interior trim component 1-viewed over the cross-section-has a first cover layer 10, a second cover layer 11 and a core layer 12 arranged between these or consists of these layers. The core layer 12 is in particular directly adjacent to the first
    Cover layer 10 and the second cover layer 11 are arranged and verbun¬den with these.
    There is also the possibility that the automotive interior trim component 1 has only one of the two cover layers 10, 11.
    Furthermore, there is again the possibility that the core layer 12 and / or the first cover layer 10 and / or the second cover layer 11 is formed from a plurality of / at least two partial layers. In this regard, with regard to the first fibers 8 embedded in the cover layers 10 and optionally 11 and the further fibers 9 embedded in the core layer 12, the following applies.
    With regard to the first fibers 8 and the further fibers 9, reference is made in general to statements above, in particular with regard to the type of fibers 8, 9 and the proportion of these fibers 8, 9 on the motor vehicle interior component 1.
    The term "core layer" does not automatically include that this core layer is completely surrounded by the cover layers 10, 11, but the core layer 10 may be visible on the end faces of the automotive interior trim component 1. However, complete embedding of the core layer 12 between the cover layers 10, 11 is possible.
    Due to the multi-layer structure, it is possible that not only the fibers inside the motor vehicle interior component 1 are different, as was carried out to FIG. 1, but also that different Mat¬rixwerkstoffe be used for the layers, so that, for example, the first cover layer 10 has a first matrix 13 made of a first thermoplastic material, the core layer 12 has a second matrix 14 made of a second thermoplastic material and the second cover layer 11 has a third matrix 5 made of a third thermoplastic material.
    However, it is also possible that the plastics used for the first matrix 13 and the third matrix 15 are identical.
    It is also possible that the thermoplastic material of the cover layer (s) 10,11 and the thermoplastic material of the core layer 12 made of the same polymer, so that the plastics used for the first matrix 13, the second matrix 14 and the third matrix 15 ident are.
    With regard to the choice of material for the matrix-forming thermoplastic or thermoplastics, reference is made to the above statements on the matrix 7.
    The automotive interior trim component 1 can thus have, for example, the following structure:
    First cover layer 10: PP / glass fibers
    Core layer 12: PP / PET (+ possibly cotton fibers)
    Second cover layer 11: PP / glass fibers
    If different thermoplastic materials are used, it is preferable to use PET for the core layer 12 and 10.11 PP for the cover layer (s).
    As with all variant embodiments of the invention, the possibility of arranging at least one further layer on the automotive interior trim component 1, in particular decorative layers, as described above, is also possible in this embodiment variant.
    This embodiment variant of the automotive interior trim component 1 can also be manufactured in one of the ways described above.
    FIG. 3 shows a further embodiment of the motor vehicle interior component 1 which is possibly independent of itself, again using the same reference numerals or component designations as in the preceding FIGS. 1 and 2 for identical parts. To avoid unnecessary repetition, attention is drawn to the detailed description of FIGS. 1 and 2. Referenced.
    Shown again in FIG. 3 is a detail of a cross-section of the vehicle interior trim component 1.
    The automotive interior trim component 1 is designed in two layers and has the first cover layer 10 and the core layer 12 or consists of these, so that the core layer 12 forms an edge layer of the automotive interior component 1, if no further layers, in particular decorative layers, are arranged are net.
    In addition to this difference from the embodiment according to FIG. 2, in this variant embodiment it is also provided that at least a portion of the first fibers 8 partially project into the cover layer 10 into the core layer 12 and / or at least a portion of the further fibers 9. It is achieved in this way that the fibers 8, 9 contribute to the cohesion of the individual layers, that is, the bond is not achieved exclusively via the thermoplastic or the plastic (s) of the layers. This can be achieved, for example, by puncturing with needles, either on one or both sides, as from above and / or from below, prior to inserting the fleeces into a forming device so that individual fibers 8 and / or 9 are partially pushed into the other fleece, respectively.
    Such an embodiment variant is also possible in the motor vehicle interior component 1 according to FIG. 1, so that at least a portion of the first fibers 8 in the middle layer 4 and / or at least a portion of the further fibers 9 in some regions into at least one of the central layer 4 subsequent layers 2, 3 protrude. In this case, the procedure for determining the layers is such that the mixing zone, that is to say that zone in which both the first and the further fibers 8, 9 are present, in each case 50% on the middle layer 4 and the respectively affected layer 2 and / or 3 to determine the proportions of the individual constituents of the layers.
    By way of precaution, it should be pointed out that the following explanations also apply to all variants of the automotive interior trim component 1, even if no separate reference is made to the individual design variants.
    It may be provided that the relative proportion of the thermoplastic material in the middle layer 4 or the core layer 12, relative to the further fibers 9, is higher than the relative proportion of the thermoplastic material in each of the two layers 2, 3 or 1 relative to the first fibers 8 In other words, the middle layer 4 or the core layer 12 has a smaller proportion of fibers than the subsequent layers or layers. For the determination of the relative resin content of the middle length 4, the division or differentiation of the positions of the automotive interior trim component 1 is proceeded as above with regard to this.
    For example, the middle layer 4 or the core layer 12 may have a 30% to 40% lower percentage of thermoplastic matrix compared to the layers 2, 3 or the covering layer (s) 10, 11, than each of the layers 2, 3bzw. Cover layer (s) 10, 11.
    Thus, the first layer 2 can have a proportion of thermoplastic matrix of 60% by weight, the second layer 3 a proportion of thermoplastic matrix of 60% by weight and the middle layer 4 a proportion of thermoplastic matrix of 40% by weight. The remainder to 100% by weight forms the fibers 8 in the two layers 2, 3 and the fibers 9 in the middle layer 4.
    The same applies to the multi-layer structure Figs. 2 and 3.
    It is also possible that the resin content of the outer layer 1, which is in the installed position, is greater or smaller than the resin content of the second layer 3.
    The same applies to the multilayer structure of FIG. 2.
    It can further be provided that at least some or all of the further fibers 9 have a lower tensile strength than the first fibers 8.
    For example, the first fibers 8 may have a tensile strength selected from a range of 1,000 N / mm 2 to 5,000 N / mm 2, more preferably selected from a range of 1,500 N / mm 2 to 3,000 N / mm 2.
    The further fibers 9 may have a tensile strength selected from a range of 200 N / mm 2 to 1,000 N / mm 2, especially selected from a range of 300 N / mm 2 to 700 N / mm 2.
    It is preferably provided that the first fibers 8 are oriented at least 80%, in particular at least 90%, in one direction. For this purpose, the fibers can be aligned correspondingly with a carding machine. It is also possible that in the case that the thermoplastic material for the matrix 7,13,15 is also used in fibrous form, these Fa¬sern be aligned with.
    It is further preferred if the further fibers 9 are also oriented at least 80%, in particular at least 90%, in the direction of the first fibers 8. For this purpose, they can be subjected to the same treatment as the first fibers 8. For In the case where the first fibers 8 and / or the further fibers 9 are used in the form of a nonwoven fabric, it is therefore preferable not to use a random nonwoven web.
    The first fibers 8 and / or further fibers 9 used preferably have a fiber length of at least 20 mm. Thus, preferably no short fibers are used. The first fibers 8 and / or further fibers 9 can be used in the form of long fibers having a fiber length of at least 50 mm or as continuous fibers.
    It is possible in this case for the first fibers 8 to have a greater fiber length than the further fibers 9. In particular, the first fibers 8 may be 20% to 50% longer than the further fibers 9, the reference point being the fiber length of the further fibers 9.
    With fiber length, the arithmetic mean of 50 fibers 8 or fibers 9 is meant.
    In the case of using plastic fibers, e.g. PET fibers, in particular uniaxially stretched fibers can be used.
    It is also possible that the first fibers 8 and / or the further fibers 9 are needled.
    In addition, it is possible that the first fibers 8 differ from the other fibers 9 not only in terms of their fiber length. It is alternatively or additionally possible for the first fibers 8 to have a different cross-section compared to the further fibers 9. In particular, the first fibers 8 may have a larger diameter than the further fibers 9.
    As part of tests carried out a car sky was made herrereagiges core material, ie without applied lamination, the following Aufbauaufwies.
    Layer 2: 60% by weight of PP, 40% by weight of glass fibers
    Middle layer 4: 40 wt.% PP, 30 wt.% PET, 30 wt.% Shredded cotton layer 3: 60 wt.% PP, 40 wt.% Glass fibers
    This core material had a layer thickness of 2 mm after pressing.
    In general, the layer thickness of the Kf.-Innenverkleidungsteils 1 between 2 mm and 3.5 mm.
    The basis weight of the core material (that is, without conventional decorative coating) was 600 g / m 2.
    Generally, the basis weight of the core material is preferably between 600 g / m2 and 1200 g / m2. With the decorative layer, the vehicle interior trim part 1 can be between 1600 g / m 2 and 2200 g / m 2.
    The core material such as a firing rate of less than 100 mm / min on.
    The exemplary embodiments show possible embodiments of the automotive interior trim component 1, wherein it should be noted at this point that even more diverse combinations of the individual design variants are possible with one another.
    For the sake of order, it should finally be pointed out that, for a better understanding of the structure of automotive interior equipment component 1, this or its component parts have been shown partially unevenly and / or enlarged and / or reduced in size.
    REFERENCE SIGNS LIST 1 automotive interior trim component 2 layer 3 layer 4 middle layer 5 surface 6 surface 7 matrix 8 fiber 9 fiber 10 cover layer 11 cover layer 12 core layer 13 matrix 14 matrix 15 matrix
    权利要求:
    Claims (14)
    [1]
    1. automotive interior trim component (1) of a fiber composite material um¬fassend a matrix (7) of a thermoplastic material in the first Fa¬sern (8) are embedded, characterized in that in the matrix (7) furtherFasern (9) embedded, wherein the further fibers (9) in a central layer (4) which is formed between two layers (2, 3) are arranged, and the central layer (4) contains as fibers exclusively the further fibers (9).
    [2]
    2. motor vehicle interior component (1) from a fiber composite um¬fassend at least one core layer (12) and at least one cover layer (10, 11), wherein the cover layer (10, 11) made of a reinforced with first fibers (8) thermoplastic material , characterized in that the core layer (12) is likewise formed from a thermoplastic material reinforced with further fibers (9), the core layer (12) containing exclusively the further fibers (9) as fibers.
    [3]
    3. automotive interior trim component (1) according to claim 1 or 2, characterized ge indicates that the relative to the other fibers (9) relative proportion of thermoplastic material in the central layer (4) or the core layer (12) is hö¬her than relative to the first fibers (8) relative proportion of thermoplasti¬schen plastic in each of the two layers (2, 3) or cover layers (10, 11).
    [4]
    4. automotive interior trim component (1) according to claim 1 or claim 2 or 3, characterized in that the proportion of the thermoplastic Kunst¬stoffes in the central layer (4) or the core layer (12) from a range of 35Gew .-% to 45 % By weight and the remainder to 100% by weight being formed by the further fibers (9).
    [5]
    5. automotive interior trim component (1) according to one of claims 1 to 4, characterized in that at least a part of the further fibers (9) have a lower tensile strength than the first fibers (8).
    [6]
    6. automotive interior trim component (1) according to one of claims 1 to 5, characterized in that the first fibers (8) are selected from a group comprising glass fibers, glassy mineral fibers, carbon fibers, Naturfa¬sern, and mixtures thereof.
    [7]
    Automotive interior equipment component (1) according to one of claims 1 to 6, characterized in that the further fibers (9) are selected from a group comprising synthetic fibers and natural fibers and mixtures thereof.
    [8]
    8. automotive interior trim component (1) according to one of claims 1 to 7, characterized in that the first fibers (8) are oriented to at least 80% in the same direction.
    [9]
    9. automotive interior trim component (1) according to claim 8, characterized gekenn¬zeichnet that the further fibers (9) are oriented to at least 80% in the direction of Ers¬ten fibers (8).
    [10]
    10. automotive interior trim component (1) according to one of claims 1 to 9, characterized in that the first fibers (8) and the other fibers (9) have a fiber length of at least 20 mm.
    [11]
    Automotive interior trim component (1) according to one of claims 1 to 10, characterized in that the first fibers (8) and / or the further fibers (9) are needled.
    [12]
    12. automotive interior trim component (1) according to any one of claims 2 to 11, characterized in that the thermoplastic material of the cover layer (10,11) and the thermoplastic material of the core layer (12) consist of the same polymer.
    [13]
    13. automotive interior trim component (1) according to one of claims 1 or 3 to 11, characterized in that at least a portion of the first fibers (8) in some areas in the middle layer (4) and / or at least a portion of the other Fa¬sern (9 ) project in regions in at least one of the central layer (4) subsequent layers (2, 3).
    [14]
    14. automotive interior trim component (1) according to one of claims 2 to 12, characterized in that at least a portion of the first fibers (8) in the core layer (12) and / or at least a portion of the further fibers (9) partially in the cover layer (10, 11) protrude.
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    同族专利:
    公开号 | 公开日
    EP2871052B1|2021-06-23|
    EP2871052A1|2015-05-13|
    AT515022B1|2016-06-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP1584649A1|2004-03-29|2005-10-12|Quadrant IP AG|Sheet-like preform from recycled glass mat reinforced thermoplastics|
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    US20080277057A1|2007-01-23|2008-11-13|The Boeing Company|Composite laminate having a damping interlayer and method of making the same|
    KR101279522B1|2013-01-02|2013-07-05|가온전선 주식회사|Natural fiber reinforced composite board for vehicle headliner of multi-layers structure using thermoplastic matrix fibers of high crystalline and bonding to improve heat resistance and strength, and method for preparing the board|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50697/2013A|AT515022B1|2013-10-28|2013-10-28|Kfz. interior lining part|ATA50697/2013A| AT515022B1|2013-10-28|2013-10-28|Kfz. interior lining part|
    EP14190148.8A| EP2871052B1|2013-10-28|2014-10-23|Motor vehicle interior section|
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