Sound insulation cladding for a motor vehicle, corresponding motor vehicle and method for mounting a motor vehicle

Abstract

The invention relates to a soundproofing panel (1) for a motor vehicle, comprising a first layer (2) made of a first material and a second layer (3) made of a second material. It is provided that a retaining web (5) made of a deformable material is formed on the side of the first layer (2) facing away from the second layer (3). This retaining web is encompassed by a component holder (8) designed and configured to hold a component on the soundproofing panel (1), which engages the retaining web (5) by deforming the retaining web (5) in a force-fit and / or form-fit manner. The invention further relates to a motor vehicle with a soundproofing panel (1) and to a method for assembling a motor vehicle.

Description

[0001] The invention relates to a soundproofing panel for a motor vehicle, comprising a first layer made of a first material and a second layer made of a second material. The invention further relates to a motor vehicle with a soundproofing panel and a method for assembling a motor vehicle.

[0002] For example, German patent application DE 10 2020 104 489 A1 is known from the prior art. This document describes a device for fastening a vehicle part in and / or to a vehicle, comprising a sound insulation element with a carrier layer and a sound-absorbing layer. The carrier layer has an anchoring recess, which has an insertion opening on one side of the carrier layer. Adjoining this opening is a receiving space bounded by the base material of the carrier layer, defined by a closed circumferential inner surface and a closed bottom surface. Furthermore, an anchoring element is provided.

[0003] The anchoring recess has a constriction on its inner circumference that at least partially narrows the receiving space, followed by a widened conduit area extending towards the floor surface. The anchoring element has an anchoring shoulder for engaging behind the constriction when the anchoring element is engaged by the anchoring recess.

[0004] Furthermore, German patent application DE 20 2004 008 165 U1 discloses a sound-insulating component for motor vehicles, in particular in the form of a transmission tunnel and / or bulkhead lining, formed from at least one molded plastic part made of a thermoplastic elastomer based on styrene and a filler. The plastic used for its manufacture is a mixture of 5 to 15 wt.% of a copolymer based on bonded styrene and ethylene butylene or a copolymer based on bonded styrene and ethylene butylene in combination with a block copolymer based on bonded styrene and ethylene butylene, 2 to 15 wt.% of a polypropylene homopolymer and / or a vinyl acetate copolymer, at least 60 wt.% of a filler, and up to 23 wt.% of additives.

[0005] Finally, German patent application DE 20 2004 009 726 U1 describes a firewall panel for motor vehicles for shielding the passenger compartment from the engine compartment, incorporating a sound absorber formed from nonwoven material that is at least partially compressed. The sound absorber is provided with a plastic frame that gives the firewall panel self-supporting properties. This frame is formed by back-injection or back-pressing of the compressed nonwoven material and includes at least one integrated fastening element for attaching a cable, hose, or functional component to the firewall panel.

[0006] The object of the invention is to propose a sound insulation lining for a motor vehicle which has advantages over known sound insulation linings, in particular on the one hand achieving effective sound insulation and on the other hand enabling a flexible design of the interior of the motor vehicle, preferably with regard to the arrangement of a component.

[0007] This is achieved according to the invention with a sound insulation cladding for a motor vehicle with the features of claim 1. It is provided that a retaining web made of a deformable material is formed on the side of the first layer facing away from the second layer, which is encompassed by a component holder designed and configured to hold a component on the sound insulation cladding, and which engages the retaining web in a force-fit and / or form-fit manner by deforming the retaining web.

[0008] Advantageous embodiments with expedient further developments of the invention are specified in the dependent claims. It should be noted that the exemplary embodiments described in the description are not limiting; rather, any variations of the features disclosed in the description, the claims, and the figures are possible.

[0009] The soundproofing panel is preferably an integral part of a motor vehicle, but can of course also be separate, particularly until it is installed in and / or on the vehicle. The soundproofing panel serves to insulate against noise, in particular by soundproofing a wall of the motor vehicle. For example, the soundproofing panel is attached to a wall that borders an interior space of the motor vehicle, such as the exterior wall or the engine compartment.

[0010] The interior of a motor vehicle includes at least a passenger compartment. It may also consist of the passenger compartment and a trunk. The passenger compartment is designed and configured for at least one person, such as the driver. Accordingly, the passenger compartment contains at least one seat or bench seat. The wall between the interior and the engine compartment is also called the bulkhead or firewall. If sound insulation is installed on the bulkhead, it may also be referred to as bulkhead trim.

[0011] The wall is preferably made of metal, particularly throughout. For example, steel or aluminum, or an aluminum alloy, is used as the metal. The soundproofing cladding is preferably arranged so that it covers the entire surface of the wall, particularly completely and / or continuously. It is particularly located on the side of the wall facing the interior. For example, the soundproofing cladding is bonded to the wall.

[0012] The soundproofing cladding consists of several layers, namely at least a first layer and a second layer. The first layer consists of the first material, and the second layer consists of the second material, which differs from the first. The two layers overlap each other at least partially, in particular completely and preferably throughout. This means that preferably the first layer completely and—especially preferably—throughout overlaps the second layer, and conversely, the second layer completely and—especially preferably—throughout overlaps the first layer. The two layers thus have identical or at least nearly identical dimensions in at least two perpendicular directions. Preferably, the thickness of the second layer is greater than the thickness of the first layer.In particular, the thickness of the first layer shall be at most 30%, at most 20% or at most 10% of the thickness of the second layer.

[0013] Preferably, the second layer is arranged between the wall and the first layer, or, in other words, the first layer is arranged on the side of the second layer opposite the wall, so that the second layer is located between the wall and the first layer. The different materials of the two layers are selected such that the transmission of structure-borne sound from the wall towards the interior is at least partially prevented, thus achieving sound insulation, particularly between the engine compartment and the passenger compartment of the vehicle.

[0014] For the arrangement and fastening of at least one component to or within the motor vehicle, a component holder is provided, to which the component is attached. The component is thus held against the wall by the component holder. In principle, any motor vehicle component can be used as a component to be fastened using the component holder. For example, the component could be an electrical device, in particular a control unit, and / or it could be an electrical cable and / or a fluid line.

[0015] It has been common practice to attach the component holder directly to the wall by having the component holder or a fastening device used to attach the component holder completely penetrate the sound insulation cladding, so that on the one hand the component can be attached to the sound insulation cladding by means of the component holder and on the other hand the component holder directly engages with or is attached to the wall of the vehicle.

[0016] However, this has the disadvantage that structure-borne noise is transmitted through the sound insulation paneling via the component holder or fastener, negatively impacting the acoustics in the vehicle's interior. Furthermore, installing the fasteners is costly, and their position is not arbitrary, which can lead to an unfavorable component arrangement. For example, if the component holder is used to support an electrical cable, the inflexible positioning of the fasteners results in a cable length that is greater than necessary.

[0017] For this reason, a way must be created to securely hold the component, for example, the electrical device and / or the electrical cable and / or the fluid line, without impairing the acoustic properties of the soundproofing cladding. To this end, the retaining rib is molded onto the first layer, to which the component holder is attached, thus enabling the component to be fastened to the first layer by means of the component holder. The retaining rib is made of the deformable material. For example, the retaining rib is made of the same material as the first layer, so that the deformable material matches the first material. However, a different material can also be used as the deformable material, in particular a material that has lower strength and / or higher elasticity than the first material.

[0018] The deformable material of the retaining bracket is selected such that the component holder deforms the retaining bracket during its mounting, resulting in a force-fit and / or preferably a form-fit connection between the component holder and the retaining bracket. The component holder encompasses the retaining bracket, meaning it rests against it on at least two opposite sides and engages it from these opposite sides. This means that after the component holder is mounted, the retaining bracket is clamped securely within the component holder.

[0019] The retaining web extends from the first layer in the direction away from the second layer, and specifically exclusively in this direction. This means that the retaining web does not engage with the second layer, but is designed solely on the side of the first layer facing away from the second layer. This reliably prevents any reduction in the sound insulation provided by the soundproofing cladding, as there is no fastener penetrating the soundproofing cladding towards the wall. Rather, the retaining web is positioned and designed at a distance from the second layer.

[0020] This also applies to the component holder, which, for example, is located entirely on the side of the first layer facing away from the second layer and / or engages with the first layer, but is separated from the second layer by the first layer. Accordingly, the described soundproofing cladding achieves excellent sound insulation. At the same time, a flexible arrangement of the support bracket and the component holder is realized, which is completely independent of the geometry of the vehicle's wall on which the soundproofing cladding is attached.

[0021] A further development of the invention provides that the component holder has a retaining element which encompasses the retaining web and has positive-locking projections on opposite sides that dig into the retaining web from the opposite sides, deforming it. The retaining element ultimately serves to secure the component holder to the retaining web. For this purpose, the retaining element encompasses the retaining web after the component holder has been mounted, thus lying on opposite sides of the retaining web. It has the positive-locking projections, which are arranged on opposite sides of the retaining web and dig into it in opposite directions.

[0022] For example, during the assembly of the component holder, the positive locking projections are pressed towards each other and thus towards the retaining rib, so that they come into contact with it. This deforms the retaining rib, causing the positive locking projections to engage with it, essentially digging into it. In other words, the deformation of the retaining rib creates positive locking recesses into which the positive locking projections engage, thus securing the retaining element and, consequently, the component holder to the retaining rib. This results in a particularly reliable attachment of the component holder to the retaining rib.

[0023] A further development of the invention provides that the retaining element is deformable, in particular elastic and / or elastically deformable, and that the positive-locking projections are located on retaining arms that are movable relative to one another. In a first retaining arm position, the positive-locking projections are located away from the retaining web, and in a second retaining arm position, they engage the retaining web to fasten the component holder to the first layer. The retaining element has retaining arms that are movable relative to one another, in particular to force them towards the retaining web. The retaining element can be V-shaped, so that the retaining arms extend directly from one another. Alternatively, the retaining element is U-shaped, with the retaining arms spaced apart and connected to one another via a connecting web.

[0024] Each of the retaining arms has at least one positive-locking projection. Preferably, the positive-locking projections arranged on the retaining frame are positioned opposite each other so that they overlap and engage the retaining web when the component holder is mounted. The retaining arms can be arranged in different positions relative to each other, namely at least in the first retaining arm position and in the second retaining arm position. In the first retaining arm position, the retaining arms are spaced further apart than in the second retaining arm position.

[0025] During the assembly of the component holder, the retaining arms are first positioned in the first retaining arm position, and the component holder or its retaining element is positioned such that the retaining arms either grip the retaining web or are located on opposite sides of the retaining web. The retaining arms are then moved from the first retaining arm position towards the second retaining arm position, specifically until they reach the second retaining arm position. In the second retaining arm position, the positive locking projections engage with the retaining web to hold the component holder in place, either by deforming the retaining web or by digging into it. This ensures a reliable fastening of the component holder.

[0026] A further development of the invention provides that the component holder, in addition to the holding element, has a fixing element which releases the holding arms for displacement in a first fixing element position and presses them in the direction of the second holding arm position in a second fixing element position. The displacement of the holding arms is effected by means of the fixing element, which can also be referred to as an operating element in this respect. The fixing element can be arranged in different positions relative to the holding element, namely at least in the first fixing element position and in the second fixing element position.

[0027] In the first fixing element position, the fixing element is arranged such that it releases the retaining arms for displacement, in particular for displacement from the direction of the second retaining arm position towards the first retaining arm position, so that in the first fixing element position it allows the component holder to be removed from the retaining web. In the second fixing element position, however, the fixing element forces the retaining arms towards the second retaining arm position, preferably into it, and in this respect the retaining arms or the positive locking projections towards the retaining web or onto the retaining web.

[0028] In particular, the fixing element is designed such that, when arranged in the second fixing element position, it shifts the retaining arms onto the retaining web in such a way that the web deforms and the form-locking projections dig into the retaining web, forming corresponding recesses and thus creating a form-locking connection. This ensures both easy assembly of the component holder and reliable attachment of the component holder to the retaining web.

[0029] A further development of the invention provides that the retaining arms are displaceable relative to each other in a first direction, and the fixing element is displaceable relative to the retaining element in a second direction different from the first direction. The first direction preferably extends through both retaining arms, particularly centrally. Consequently, the retaining arms can be moved towards and away from each other in the first direction.

[0030] The displacement of the fixing element relative to the holding element occurs in the second direction, which differs from the first. Preferably, the first and second directions are angled relative to each other, thus forming an angle greater than 0° and less than 180°. Particularly preferably, the angle is at least 60° and at most 120°, at least 80° and at most 100°, or approximately or exactly 90°. In the latter case, the two directions are perpendicular to each other. This achieves the aforementioned advantages in a structurally simple manner.

[0031] A further development of the invention provides that the fixing element is mounted on the holding element so as to be displaceable in the second direction by means of a guide device. The guide device preferably allows the displacement of the fixing element relative to the holding element exclusively in the second direction, and not in any direction other than the second direction. For example, the guide device has a guide projection and a guide recess, wherein the guide projection engages in the guide recess in a form-fitting manner to mount the fixing element and the holding element relative to each other so as to be displaceable in the second direction, and in particular, so as to be displaceable exclusively in the second direction.

[0032] This ensures reliable guidance of the fixing element and the holding element relative to each other. In particular, it prevents the fixing element from becoming disengaged from the holding element after the component holder has been mounted, which could also loosen the connection between the component holder and the retaining bar. Accordingly, the guiding device ensures a permanently reliable connection between the component holder and the retaining bar.

[0033] A further development of the invention provides that the component holder has a locking device which releases the fixing element and the holding element relative to each other until the second fixing element position is reached, at least in the second direction, and then locks them in the second fixing element position relative to each other after the second fixing element position has been reached. The locking device is designed such that it initially allows the fixing element and holding element to move relative to each other. Only after the second fixing element position has been reached does the locking device prevent the fixing element and holding element from moving relative to each other out of the second fixing element position, particularly in the direction of the first fixing element position.

[0034] Accordingly, the fixing element is locked in the second fixing element position, and the retaining element or its retaining arms are held in the second retaining arm position, so that the component holder is reliably connected to the retaining bridge. The locking mechanism may include a locking tongue that engages in a locking recess when the second fixing element position is reached, thus locking the fixing element and the retaining element relative to each other, particularly in the direction of the first fixing element position. Furthermore, the locking mechanism may be releasable by external force; in this case, the locking of the fixing element and the retaining element relative to each other is reversible. With such a design of the sound insulation cladding, reliable attachment of the component holder to the retaining bridge is achieved.

[0035] A further development of the invention provides that the fixing element and the holding element are connected in the first fixing element position via a predetermined breaking element. This breaking element irreversibly releases the fixing element and the holding element relative to each other from the first fixing element position. The predetermined breaking element connects and holds the fixing element and the holding element in the first fixing element position as long as they are in this position. The predetermined breaking element is designed such that it irreversibly changes, for example, breaks, when an operating force acting on the fixing element exceeds a certain threshold value, thereby releasing the fixing element and the holding element relative to each other, particularly for a movement from the first fixing element position towards the second fixing element position. This enables particularly simple assembly of the component holder.

[0036] A further development of the invention provides that the component holder has at least one fastening receptacle formed on the fixing element. The fastening receptacle serves to receive a fastening element by means of which the component is attached to the component holder. The fastening element is, for example, in the form of a cable tie or the like. The fastening receptacle is preferably designed as a closed-edge recess in the component holder; more precisely, it is formed in the fixing element. It extends stepwise through the fixing element in the first direction, in which the retaining arms are also movable relative to each other, and in particular completely. This enables flexible mounting of the component using the component holder.

[0037] A further development of the invention provides that the component holder, in addition to the fastening element receptacle, has at least one further fastening element receptacle, and that the fastening element receptacle and the at least one further fastening element receptacle intersect or cross each other. In other words, the fastening element receptacle and the further fastening element receptacle are angled relative to each other, i.e., they intersect at an angle greater than 0° and less than 180°. Preferably, the fastening element receptacles are perpendicular to each other, correspondingly the angle being 90°. Preferably, the fastening element receptacle and the further fastening element receptacle extend through the component holder, in particular the fixing element, such that they each intersect the second direction or are oriented perpendicular to it.The described design of the sound insulation cladding or component holder allows for a flexible arrangement of the component.

[0038] A further development of the invention provides that the retaining rib is arranged in a recess formed in the first layer, in particular extending completely through the recess. The first layer thus has a recess in which its thickness is reduced relative to a point in the first layer located away from the recess. The recess is preferably bounded by a continuous rim that encloses an opening of the recess, in particular completely and without interruption. The recess is particularly shaped as a pocket recess, thus extending only partially through the first layer, for example, by a maximum of 50%, 40%, or 30%, towards the second layer. The retaining rib is located within the recess. Accordingly, the component holder, after its assembly on the retaining rib, is also at least partially embedded in the recess. This enables a particularly high strength of the connection.Preferably, the retaining rib extends completely through the recess, particularly in its longitudinal direction, i.e., in the direction of its greatest extent. This ensures that the component holder always engages reliably with the retaining rib.

[0039] A further development of the invention provides that the retaining rib is completely enclosed within the recess, in particular that it is spaced apart from the opening of the recess, or that it terminates flush with an edge bounding the recess, or that it projects out of the recess. In principle, various configurations of the retaining rib and the recess are possible. For example, it can be provided that the retaining rib is completely enclosed within the recess and is also spaced apart from the opening of the recess. In this case, the retaining rib extends from a base of the recess, which limits the recess towards the second layer. However, the dimensions of the retaining rib in the direction away from the base are smaller than the depth of the recess, so that the retaining rib terminates at a distance from the opening of the recess.

[0040] Alternatively, the retaining rib can be flush with the opening or the edge defining the recess. In this case, the retaining rib preferably also extends from the bottom of the recess, but has dimensions corresponding to the depth of the recess. In a further embodiment, the retaining rib projects out of the recess; its dimensions, or height, are therefore greater than the depth of the recess. In any case, a reliable attachment of the component holder to the retaining rib is ensured.

[0041] A further development of the invention provides that at least one transverse web extends from the retaining web, overlapping the retaining element and / or the fixing element at least partially in order to secure it in at least one direction. The transverse web projects beyond the retaining web on only one or both sides. It is angled relative to the retaining web, thus forming an angle with it that is greater than 0° and less than 180°. Preferably, the angle is 90°, meaning the transverse web is perpendicular to the retaining web. For example, the transverse web is arranged at the end of the retaining web, thus closing off the retaining web in one direction. It is possible that only a single transverse web extends from the retaining web. Alternatively, several transverse webs extend from the retaining web, particularly at opposite ends of the retaining web. In this case, the transverse webs preferably enclose the retaining web between them.

[0042] The crossbar is designed such that it overlaps the retaining element or the fixing element, at least partially, to secure it in the direction of a longitudinal axis of the retaining element. The crossbar thus allows the retaining element to be placed on the retaining element in a mounting direction that preferably runs parallel to the second direction. It also allows the retaining arms to shift in the first direction. However, it supports the retaining element and / or—preferably—the fixing element in a direction that is perpendicular to both the first and second directions to prevent the fixing element from slipping laterally off the retaining element. With this design, reliable retention of the fixing element on the retaining element is achieved even without a guide device. Of course, a guide device can be provided as an optional extra.

[0043] A further development of the invention provides that the component holder is made entirely of plastic, in particular as an injection-molded plastic part. The component holder preferably has no metal parts, especially no metal inserts. This results in a particularly simple and cost-effective manufacturing process for the component holder. For example, the component holder is made of the same plastic as the first layer or the retaining web. This ensures a particularly reliable connection between the component holder and the retaining web. Preferably, the component holder is designed as a single piece, in particular as a single-piece molded part. Accordingly, the additional assembly effort of connecting the retaining element and the fixing element is eliminated.Alternatively, the component holder, in particular the holding element and / or the fixing element (each) can of course contain a metal insert to ensure particularly good flexibility.

[0044] A further development of the invention provides that the first layer is a heavy layer and the second layer is a foam layer. The heavy layer is characterized by a higher density compared to the foam layer. The foam layer consists of foam, for example, closed-cell or open-cell foam. The foam serves as a sound absorber. Preferably, polyurethane foam is used as the foam.

[0045] Preferably, the second layer completely fills the space between the first layer and the wall, so that the second layer rests against the wall. Preferably, the first layer is only indirectly held against the wall by the second layer. The first layer, which has a higher density than the second layer, is referred to as the heavy layer. Using the heavy layer in addition to the foam layer has the advantage of further reducing the sound level in the interior, so that the vehicle's operating noise is only perceptible in a significantly dampened form.

[0046] A further development of the invention provides that the first layer comprises a sublayer and a second sublayer, wherein the first sublayer consists of a composite material and the second sublayer of a non-composite material. Preferably, the first sublayer borders the second layer, so that the first sublayer is sandwiched between the second layer and the second sublayer. The second sublayer is preferably connected to the second layer only indirectly via the first sublayer. The retaining web is preferably integrally formed on the second sublayer.

[0047] To achieve a particularly high density, the first layer consists of the composite material. To protect the composite material from environmental influences, especially from the interior of the vehicle, the first layer is covered by the second layer, which consists of the non-composite material. This reliably prevents damage to the first layer. For example, the second layer has a thickness that is less than the thickness of the first layer. Preferably, the thickness of the second layer is at most 50%, at most 25%, or at most 10% of the thickness of the first layer.

[0048] A further development of the invention provides that the composite material comprises a matrix made of a matrix material and a filling embedded in the matrix, and the non-composite material consists of the matrix material. The matrix of the composite material thus contains the filling. The matrix consists of the matrix material, in particular a plastic. Polyurethane is preferably used as the matrix material. The filling comprises, in particular, reinforcing fibers, for example, glass fibers, carbon fibers, aramid fibers, or the like. To achieve a particularly reliable bond between the two sublayers, the matrix material is also used as the non-composite material; the second sublayer therefore consists of the matrix material, which, however, unlike the matrix material of the first sublayer, does not contain any filling.

[0049] A further development of the invention provides that the first layer is an injection-molded layer. It is therefore produced by injection molding. This allows for a particularly simple shaping of the retaining rib onto the first layer.

[0050] The invention further relates to a motor vehicle with a soundproofing panel, in particular a soundproofing panel as described herein, wherein the soundproofing panel has a first layer made of a first material and a second layer made of a second material. It is provided that a retaining web made of a deformable material is formed on the side of the first layer facing away from the second layer, and this retaining web is encompassed by a component holder designed and configured to hold a component on the soundproofing panel, which engages the retaining web in a force-fit and / or form-fit manner by deforming the retaining web.

[0051] The advantages of such a design for the vehicle and the sound insulation cladding have already been mentioned. Both the vehicle and the sound insulation cladding can be further developed as described in this document, and reference is made to that description in that regard.

[0052] Furthermore, the invention relates to a method for assembling a motor vehicle, wherein a soundproofing panel is attached to a wall of the motor vehicle, in particular a soundproofing panel according to the embodiments of this description, wherein the soundproofing panel has a first layer made of a first material and a second layer made of a second material. It is provided that a retaining web made of a deformable material is formed on the side of the first layer facing away from the second layer, and this retaining web is encompassed by a component holder designed and configured for holding a component on the soundproofing panel, which is arranged to engage the retaining web in a force-fit and / or form-fit manner by deforming the retaining web.

[0053] The advantages of this approach and this vehicle design have been highlighted. Reference is again made to the explanations in this description regarding possible further developments of the procedure and the sound insulation cladding.

[0054] The features and combinations of features described in the description, in particular those described in the following figure description and / or shown in the figures, can be used not only in the combinations specified, but also in other combinations or individually, without departing from the scope of the invention. Thus, embodiments that are not explicitly shown or explained in the description and / or the figures, but which emerge from or can be derived from the explained embodiments, are also to be considered as encompassed by the invention.

[0055] The invention is explained in more detail below with reference to the exemplary embodiments shown in the drawing, without limiting the invention. The drawing shows: Fig. 1 a schematic representation of an area of ​​sound insulation cladding for a motor vehicle, as well as Fig. 2 a schematic representation of a component holder by means of which a component can be attached to a layer of the sound insulation cladding.

[0056] The Fig. Figure 1 shows a schematic representation of a section of a soundproofing lining 1 for a motor vehicle, comprising a first layer 2 and a second layer 3. The first layer 2 consists of a first material and the second layer 3 of a second material, the first material preferably having a higher density than the second material, for which foam is preferably used. The first layer 2 can thus also be referred to as the heavy layer and the second layer 3 as the foam layer. The foam is, in particular, a polyurethane foam.

[0057] The soundproofing cladding 1 is preferably arranged and attached to a wall 4 of the vehicle. For example, the soundproofing cladding 1 is bonded to the wall 4. In this case, the second layer 3 lies completely flat against the wall 4, whereas the first layer 2 is continuously spaced away from the wall 4. The first layer 2 is thus only indirectly arranged and attached to the wall 4 via the second layer 3. It can be seen that the first layer 2 overlaps the second layer 3, in particular completely and continuously. The first layer 2 therefore has the same dimensions as the second layer 3 in two perpendicular directions; in particular, an edge circumferentially bounding the first layer 2 is flush with an edge circumferentially bounding the second layer 3.

[0058] On the side of the first layer 2 facing away from the second layer 3, a retaining web 5 is integrally formed with the first layer 2, which is shown here in different embodiments. In some embodiments, at least one transverse web 6 extends from the retaining web 5. This transverse web 6 can extend over the retaining web 5 either on one side only or on both sides. For example, there is only a single transverse web 6; however, it is particularly preferred that the retaining web 5 is positioned between two transverse webs 6, with the transverse webs 6 extending from the end of the retaining web 5. An embodiment without a transverse web 6 is also possible.

[0059] Furthermore, in some embodiments, the retaining rib is arranged in a recess 7 located in the first layer 2. Preferably, the recess 7 is closed off from the second layer 3; in particular, it is located in a projection of the first layer 2 that extends into the second layer 3. In other words, the recess 7 extends through a base body of the first layer 2, and a projection extends from this base body in which the recess 7 is formed.

[0060] The retaining rib 5 may be fully enclosed within the recess 7. It may be lower than the recess 7, thus being spaced away from the opening of the recess 7. Alternatively, it may be flush with a surface of the first layer 2 facing away from the second layer 3, or it may project out of the recess 7 in the direction away from the second layer 3. The retaining rib 5 serves to fasten a component holder 8 (not shown) to the sound insulation cladding 1, particularly to the first layer 2.

[0061] The Fig.Figure 2 shows a schematic representation of the component holder 8. This holder has a retaining element 9 with several retaining arms 10, each retaining arm 10 having at least one positive locking projection 11, or in the embodiment shown here, at least two positive locking projections 11. The positive locking projections 11 are arranged on the inside of the retaining frame 10, i.e., on their mutually facing sides. The retaining arms 10 are spaced apart from each other and connected to one another via a connecting web 12, so that the retaining element 9 is essentially U-shaped.

[0062] In addition to the retaining element 9, the component holder 8 has a fixing element 13. This element is movable relative to the retaining element 9, meaning it can be arranged in different positions. In its first fixing element position, the fixing element 13 releases the retaining arms 10 for movement, whereas in its second fixing element position, it presses them together. This forces the retaining arms 10, and in particular the positive-locking projections 11 on them, against the retaining rib 5, causing it to deform at least locally and allowing the positive-locking projections 11 to dig into it. This reliably secures the component holder 8 to the circuit board cover 1.

[0063] The component holder 8 has a fastening receptacle 14, in the embodiment shown here having two fastening receptacles 14 perpendicular to each other. A fastening element 15 is arranged in one of the fastening receptacles 14, by means of which a component (not shown here) can be reliably fastened to the sound insulation cladding 1 via the component holder 8. REFERENCE MARK LIST: 1 soundproofing cladding 2 1st shift 3 2nd layer 4 Wall 5 landing stage 6 crossbars 7. Further Study 8 component holders 9 retaining element 10 Support arm 11 Form-fit projection 12 Connecting bridge 13 Fixing element 14 Fastener receptacle 15 Fasteners QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] DE 10 2020 104 489 A1

[0002] DE 20 2004 008 165 U1

[0004] DE 20 2004 009 726 U1

[0005]

Claims

[1] Sound insulation lining (1) for a motor vehicle, comprising a first layer (2) consisting of a first material and a second layer (3) consisting of a second material, characterized by , that on the side of the first layer (2) facing away from the second layer (3) a retaining web (5) made of a deformable material is formed, which is encompassed by a component holder (8) designed and configured to hold a component on the sound insulation cladding (1), which engages the retaining web (5) by deforming the retaining web (5) in a force-fit and / or form-fit manner. [2] Sound insulation cladding according to claim 1, characterized by , that the component holder (8) has a retaining element (9) which encompasses the retaining web (5) and has positive locking projections (11) on opposite sides which dig into the retaining web (5) from the opposite sides, deforming it. [3] Sound insulation cladding according to one of the preceding claims, characterized by , that the retaining element (9) is deformable and the positive locking projections (11) are located on retaining arms (10) that can be moved relative to each other, wherein the positive locking projections (11) are located away from the retaining web (5) in a first retaining arm position of the retaining arms (10) and engage the retaining web (5) in a second retaining arm position to fasten the component holder (8) to the first layer (2). [4] Sound insulation cladding according to one of the preceding claims, characterized by , that the component holder (8) has, in addition to the holding element (9), a fixing element (13) which releases the holding arms (10) for displacement in a first fixing element position and pushes them in the direction of the second holding arm position in a second fixing element position. [5] Sound insulation cladding according to one of the preceding claims, characterized by, that the retaining arms (10) are movable relative to each other in a first direction and the fixing element (13) is movable relative to the retaining element (9) in a second direction different from the first direction. [6] Sound insulation cladding according to one of the preceding claims, characterized by , that the component holder (8) has a locking device which releases the fixing element (13) and the holding element (9) relative to each other until the second fixing element position is reached and locks them in the second fixing element position relative to each other after the second fixing element position has been reached. [7] Sound insulation cladding according to one of the preceding claims, characterized by , that the retaining rib (5) is arranged in a depression (7) produced in the first layer (2). [8] Sound insulation cladding according to one of the preceding claims, characterized by, that the component holder (8) is made entirely of plastic. [9] Motor vehicle with a sound insulation panel (1), in particular a sound insulation panel (1) according to one or more of the preceding claims, wherein the sound insulation panel (1) has a first layer (2) made of a first material and a second layer (3) made of a second material, characterized by , that on the side of the first layer (2) facing away from the second layer (3) a retaining web (5) made of a deformable material is formed, which is encompassed by a component holder (8) designed and configured to hold a component on the sound insulation cladding (1), which engages the retaining web (5) by deforming the retaining web (5) in a force-fit and / or form-fit manner. [10] Method for assembling a motor vehicle, wherein a sound insulation panel (1) is attached to a wall (4) of the motor vehicle, in particular a sound insulation panel (1) according to one or more of claims 1 to 8, wherein the sound insulation panel (1) has a first layer (2) consisting of a first material and a second layer (3) consisting of a second material, characterized by , that on the side of the first layer (2) facing away from the second layer (3) a retaining web (5) made of a deformable material is formed, which is encompassed by a component holder (8) designed and configured to hold a component on the sound insulation cladding (1), which is arranged to engage the retaining web (5) in a force-fit and / or form-fit manner by deforming the retaining web (5).

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