Device for securing a vehicle component in and / or on a vehicle

By designing anchoring recesses and positioning recesses on the sound insulation element, the problem of unstable fixation of vehicle components is solved, achieving reliable assembly and easy disassembly, which is suitable for motor vehicle sound insulation elements.

CN115427261BActive Publication Date: 2025-12-09HP PELZER HLDG GMBH
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Patent Information

Application Number
CN202180013452.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2020-02-20
Filing Date
2021-01-15
Publication Date
2025-12-09
Estimated Expiration
2041-01-15

AI Technical Summary

Technical Problem

In the existing technology, the fixation of vehicle components to sound insulation elements is not reliable enough, especially the need for temporary fixation during vehicle assembly and easy subsequent disassembly is not met.

Method used

A fixing device is designed, comprising an anchoring recess and a positioning recess. An anchoring element cooperates with the anchoring recess to provide reliable fixing through the anchoring shoulder. The positioning element ensures that the component conforms to the specified orientation. A sound-insulating element is constructed using a carrier layer and a sound-absorbing layer made of plastic material. The anchoring recess and the positioning recess form a blind hole design, and mispositioning is prevented by mechanical coding.

Benefits of technology

It achieves reliable fixation of vehicle components on sound insulation elements, ensures stability and easy disassembly in the assembled state, prevents accidental detachment and mispositioning, and is suitable for sound insulation elements of motor vehicles.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to a device for fastening a vehicle component (28) in and / or on a vehicle, having a sound-deadening element (10) comprising a carrier layer (12) and a sound-deadening layer (13). An anchoring recess (50) is formed in the carrier layer (12), which has an insertion opening (18) in a first side of the carrier layer (12), on which an accommodation space (46) is adjoined, which is delimited by the plastic material of the carrier layer (12) and is defined by a closed circumferential inner side (48) and a closed bottom face (66). An anchoring element (24) is also provided. The anchoring recess (50) has a narrowing region (54) on the circumferential inner side (48), which at least partially narrows the accommodation space (66), and a widened widening region (68) which adjoins towards the bottom face (66). The anchoring element (24) has an anchoring shoulder (58) for engaging the narrowing region (54) from the back when the anchoring element (24) is accommodated by the anchoring recess (50).
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Description

TECHNICAL FIELD

[0001] The invention relates to a device for fastening a vehicle component in and / or on a vehicle. BACKGROUND

[0002] Motor vehicles are provided with sound-deadening elements in order to attenuate potentially entering noise into the interior of the vehicle. Such sound-deadening elements are, for example, front wall trim or floor trim which are arranged or installed in the vehicle body. Other examples of sound-deadening elements are enclosures for vehicle components which generate noise, for example, engines, compressors, etc.

[0003] It is sometimes necessary to fasten further vehicle components on such sound-deadening elements, more precisely permanently or temporarily on such sound-deadening elements. Temporary fastening can be necessary, in particular, when the vehicle components are preassembled on the sound-deadening elements, in order to be able to be removed from the sound-deadening elements in the installed state of the vehicle components later on, in order to position the vehicle components on other parts of the vehicle. SUMMARY

[0004] It is an object of the invention to provide an improved device for fastening a vehicle component in and / or on a vehicle.

[0005] In order to achieve this object, the invention proposes a device for fastening a vehicle component in and / or on a vehicle, which device is provided with:

[0006] a sound-deadening element, for example, a front wall trim, a floor trim, a luggage compartment trim or an engine enclosure or a unit enclosure or a wheelhouse trim,

[0007] wherein the sound-deadening element has a carrier layer of a plastic material, which carrier layer has a first side and a second side facing away from the first side, and a sound-absorbing layer of the same plastic material or of a synthetic fiber material or a natural fiber material which is integrally formed on the second side of the carrier layer;

[0008] wherein an anchoring recess is formed in the carrier layer, which anchoring recess has an insertion opening in the first side of the carrier layer, on which insertion opening an accommodation space is adjoined which is limited by the plastic material of the carrier layer, which accommodation space is defined by a closed circumferential inner side and a closed bottom face; and

[0009] an anchoring element for accommodation in the anchoring recess,

[0010] wherein the anchoring element

[0011] is configured to be integral with the component to be fastened on the sound-deadening element, or

[0012] The component to be fixed on the sound-deadening element can be mounted on the holding element, or

[0013] A through-opening can be guided through the component to be fixed on the sound-deadening element,

[0014] The anchoring recess has a narrowing region configured on the circumferential inside which narrows the accommodation space at least partially and a widened widening region adjoining towards the bottom face, and

[0015] The anchoring element has an anchoring shoulder for engaging the narrowing region from the back in the case of the anchoring element being accommodated by the anchoring recess;

[0016] A positioning element is provided which is configured in one piece with the component to be fixed on the carrier layer of the sound-deadening element or is configured in one piece on the holding element on which the component to be fixed on the carrier layer of the sound-deadening element can be mounted, a positioning recess being configured in the carrier layer of the sound-deadening element, the positioning recess having an insertion opening in a first side of the carrier layer, an accommodation space being delimited on the insertion opening by the plastic material of the carrier layer, the accommodation space being defined by a closed circumferential inside and a closed bottom face,

[0017] The positioning element and the anchoring element can be inserted and / or can be embedded into their respective recesses which are matched to the positioning element and the anchoring element when they are oriented in alignment with the positioning recess and the anchoring recess, respectively, and

[0018] The carrier layer has a recess in which there are two insertion openings, one of which belongs to the anchoring recess and the other of which enables access to the positioning recess.

[0019] The fixing device for a vehicle component according to the application serves to fix such a component on a sound-deadening element which itself is usually mounted on a vehicle body. The sound-deadening element has a mass-spring system in a known manner and comprises a carrier layer made of plastic material, also called load layer or mass layer, which is integrally formed on one side with a sound-deadening layer made of sound-deadening plastic material, for example PU foam. Alternatively, the sound-deadening layer can have a synthetic or natural fiber material. An anchoring recess is configured in the carrier layer, which is shaped in the form of a deep-drawn cup. The anchoring recess has an insertion opening in a first side of the carrier layer which faces away from the sound-deadening layer, on which insertion opening an accommodation space is delimited by the plastic material of the carrier layer, which accommodation space is defined by a closed circumferential inside and a closed bottom face. The circumferential wall and the bottom wall of the recess are thus closed and are made of the plastic material of the carrier layer. In other words, the anchoring recess is configured according to the form of a recess.

[0020] In a preferred embodiment, the anchoring recess has at least locally a cylindrical contour. In another preferred embodiment, the anchoring recess has a depth of between 4 mm and 50 mm, preferably between 7 mm and 40 mm and particularly preferably between 10 mm and 30 mm. In a further advantageous embodiment, the anchoring recess also has a diameter of between 2 mm and 40 mm, preferably between 4 mm and 30 mm and particularly preferably between 6 mm and 20 mm.

[0021] The advantage of the anchoring recess according to the application, which is formed in the carrier layer with a closed peripheral or lateral wall and a bottom wall, i.e. as a blind hole, is acoustic, i.e. sound-deadening, since the soundproofing element thereby does not have a through-opening.

[0022] Furthermore, an anchoring element for accommodation in the anchoring recess, or rather an anchoring element which can be accommodated in the anchoring recess, belongs to the fixing device according to the application. The anchoring element can be formed integrally with the vehicle component to be fixed on the soundproofing element. Alternatively, however, the anchoring element can also be formed integrally with a holding element, on which the component to be fixed can be mounted. Finally, but also possibly, the component to be fixed has a through-opening, through which the anchoring element can be guided, so that the component is fixed on the soundproofing element with the anchoring element accommodated in the anchoring recess.

[0023] Anchoring elements are known which have a plurality of barb-like hook structures, for example in the form of flexible tabs, which surround the shank of the anchoring element. Preferably, the anchoring element has barb-like structures on its outer circumference. These barb-like structures and / or protrusions can be arranged deformably and / or elastically on the base body of the anchoring element here.

[0024] According to the application, the anchoring recess has a narrowing region which narrows the accommodation space partially or on all sides, which narrowing region is formed on the circumferential inside, preferably close to the insertion opening. A widening region which widens towards the bottom face adjoins the narrowing region. In this way and method, a lateral recess is produced within the accommodation space, which lateral recess is engaged from the back by an anchoring shoulder formed on the anchoring recess in the case of accommodation of the anchoring element in the anchoring recess.

[0025] By the anchoring shoulder of the anchoring element cooperating with the transition from the narrowing region to the widening region of the anchoring recess, a reliable fixing of the anchoring element is now given against an unintended detachment from the anchoring recess. The narrowing region extends on all sides or partially along the circumferential inside. The narrowing region is formed, for example, as a continuous or interrupted inner ridge which protrudes inwards from the inner circumferential side of the accommodation space of the anchoring recess.

[0026] Alternatively, the circumferential inner side of the accommodation space can also have a recess, which forms a widening, wherein the narrowing is preferably located between the insertion opening and the recess. The widening can also extend, if necessary, up to the bottom face, but this is not mandatory.

[0027] Depending on which vehicle component is to be fastened using the device according to the application, it can be advantageous to provide assembly aids, which can then also assume additional functions in the installed state. In a preferred design of the application in this respect, it can be said that, as a positioning aid, provision is made alternatively or cumulatively for:

[0028] In the carrier layer of the sound-deadening element, a positioning recess is formed, which has an insertion opening in a first side of the carrier layer, on which insertion opening an accommodation space is adjoined, which is delimited by the plastic material of the carrier layer, which accommodation space is defined by a closed circumferential inner side and a closed bottom face,

[0029] A positioning element is provided, which is configured to be integral with or integrally configured on a holding element, on which holding element the component to be fastened on the sound-deadening element can be mounted, and / or

[0030] The positioning element and the anchoring element are insertable and / or embeddable into their respective recesses, which are matched to the positioning element and the anchoring element, respectively, in aligned orientation.

[0031] In addition to the anchoring element, the device according to the application according to this design also has a positioning element, which is provided with a positioning recess on the sound-deadening element side. The positioning recess is also formed in the carrier layer of the sound-deadening element, more precisely preferably in the same way as the accommodation recess as a recess or deep-drawn bowl, as it were. The positioning recess does not require any special design on the circumferential inner side of its accommodation space. According to this, the positioning recess is also configured as a closed structure on its peripheral face and its bottom face. The insertion opening is again located in the side of the carrier layer opposite the sound-deadening layer. The positioning recess is thus also configured as a blind hole, which is acoustically advantageous as already described above in connection with the anchoring recess.

[0032] Preferably, the anchoring recess and the positioning recess have a similar depth, in particular a depth which differs from one another by no more than 20%, preferably no more than 10%. In a further preferred embodiment, the positioning recess has a smaller cross section than the anchoring recess.

[0033] In a preferred embodiment, the anchoring recess has a depth which is chosen such that the anchoring element does not reach the bottom of the anchoring recess in the assembled state. It is thus possible, for example, for the anchoring recess to extend slightly deeper than the anchoring element, preferably between 1 mm and 5 mm, preferably between 1 mm and 3 mm, and preferably approximately 2 mm. Thereby, the worker can slightly pre-tension the clip and the barb. When the installation force is reduced, the clip slightly springs back and is then firmly in place. In this way, it can be ensured that the catch is secured.

[0034] In another preferred embodiment, the positioning element has at least one and preferably a plurality of grooves on its outer circumference which extend in the longitudinal direction of the positioning element.

[0035] By means of the positioning recess, it is ensured that the vehicle component to be installed is fixed in the prescribed orientation. In order to prevent incorrect positioning of the component to be fixed, at least one of the two recesses, i.e. the positioning recess or the anchoring recess, can be mechanically coded such that the positioning element can only be inserted into the positioning recess and / or the anchoring element can only be inserted into the anchoring recess. The interaction of the positioning element and the positioning recess guarantees, in addition to the assembly aid and the aid in the prescribed orientation of the vehicle component during assembly, that the component is secured in the assembled state against twisting.

[0036] In an advantageous design of the application, the mechanical coding or the different mechanical coding can be implemented, for example, in that the anchoring element and the anchoring recess have a first, cylindrical cross section which is identical to one another, the positioning element and the positioning recess have a second, cylindrical cross section which is identical to one another, and the size of the first cross section differs from the size of the second cross section. Alternatively, the mechanical coding can also be implemented in that the anchoring element and the anchoring recess have a first cross-sectional area which is identical to one another, the positioning element and the positioning recess have a second cross-sectional area which is identical to one another, and the second cross-sectional area differs from the first cross-sectional area or the second cross-sectional area is equal to the first cross-sectional area and is oriented twistedly relative to the second cross-sectional area.

[0037] In another advantageous design of the application, it can be provided that the insertion opening of the anchoring recess has an opening edge, and the anchoring element has a circumferential flange with a circumferential edge region which protrudes beyond the edge of the insertion opening of the anchoring recess and thus covers the insertion opening of the anchoring recess in the state in which the anchoring element is accommodated thereby.

[0038] In another advantageous embodiment of the application, it can be provided in a similar design that the insertion opening of the positioning recess has an opening edge, and the positioning element has a circumferential flange with a circumferential edge region which protrudes beyond the edge of the insertion opening of the positioning recess and thus covers the insertion opening of the positioning recess in the state in which the positioning element is accommodated thereby.

[0039] The fixing device according to the application can be formed not only on a sound-deadening element of the type described above. Alternatively, it is provided that the sound-deadening layer consists only of a carrier layer as a so-called mass layer, i.e. without a sound-absorbing layer. It is also possible that the carrier layer of the sound-deadening element used according to the application not only has a sound-absorbing layer but, for example, also a carpet floor; in this design, the carrier layer is thus located between the two previously mentioned layers. Depending on the application, the sound-absorbing layer or the carrier layer can be attached to the body of the vehicle.

[0040] In another embodiment, the holding element is essentially flat configured, in particular on the surface facing the recess.

[0041] In another advantageous embodiment, the holding element is positionable in a recess formed in the carrier layer. Here, the recess can have, for example, an essentially rectangular contour, in particular a rectangular contour with rounded corners. In another preferred embodiment, the recess has a depth which is smaller than the depth of the anchoring recess. In another preferred embodiment, the holding element is positionable in the recess in such a way that the holding element is spaced apart from the bottom of the recess by a distance. It is however also possible that the bottom of the recess and the holding element at least partially abut one another.

[0042] The application also relates to a motor vehicle and in particular a road motor vehicle having a device of the type described above. BRIEF DESCRIPTION OF DRAWINGS

[0043] The application is explained in more detail below on the basis of a plurality of embodiments and with reference to the drawings. Shown here in detail are:

[0044] Figure 1 a top view of a carrier layer of a sound-deadening element together with a perspective illustration of a component-holding element which in this case is positionable into a recess in the carrier layer of the sound-deadening element,

[0045] Figure 2 a perspective view of the underside of a holding element with anchoring element and positioning element,

[0046] Figure 3 a sectional view of an assembly consisting of a sound-deadening element and a holding element for a vehicle component fixed on the sound-deadening element,

[0047] Figure 4 a variant of the fixing device according to the application in which an expansion pin solution is used as anchoring element,

[0048] Figure 5 a further variant of the fixing device according to the application with a narrowing region which extends up to the plane of the insertion opening of the anchoring recess, and

[0049] Figure 6A further variant of the fixing device according to the application is shown, in which the anchoring element is directly connected integrally with the component to be fixed. DETAILED DESCRIPTION

[0050] Figure 1 A soundproofing element 10 is shown in a plan view, which has a carrier layer 12 made of a plastic material. The plastic material of the carrier layer 12 can have a Shore A hardness, for example, in the range from 66 to 90 and in particular in the range from 70 to 85. EVA / PE, PE, PP, EPDM, TPE or TPO, for example, are suitable as plastic material of the carrier layer 12.

[0051] REFERENCE Figure 1 In the view in Figure 1 , behind the carrier layer 12 there is a sound-deadening layer 13 made of a preferably foamed sound-deadening material, which can be a PU foam, for example. The sound-deadening layer is thus located on the side of the carrier layer 12 which faces away from the first side 14 shown in

[0052] In the recess 16 of the carrier layer 12, as can be seen in Figure 1 , there are two insertion openings 18, 20, one of which 18 belongs to the anchoring recess 50 (see Figure 3 ) and the other 20 enables access to the positioning recess 52 (see also Figure 3 ).

[0053] In a corresponding manner, the retaining element 22 which can be arranged in the recess 16 is constructed with a protruding anchoring element 24 and also a protruding positioning element 26. On the retaining element 22 there is a vehicle component 28, which can be a smaller component unit.

[0054] The design of the anchoring element 24 and the positioning element 26 can be seen more clearly by means of Figure 2 . The anchoring element 24 has a slotted shank 30 which is hollow in this embodiment, from which a hooking-oriented anchoring projection or tab 32 protrudes circumferentially. On the other end of the shank 30 which faces away from the free end 34 there is a preferably flexible circumferential flange 36 which covers the opening edge 40 of the insertion opening 18 with its circumferential edge region 38.

[0055] The positioning element 26 is likewise configured as a pin and has a shank 42 which has a cross structure, for example, in cross section.

[0056] The insertion openings 18, 20 are configured or dimensioned differently in terms of their cross-sectional area, so that the retaining element 22 can only be fixed and fitted on the soundproofing element 10 in the orientation shown in Figure 1 .

[0057] Figure 3 A cross-sectional view of the fastening situation is shown. The sound-deadening element 10 has a load-bearing or carrier layer 12, in a first side 14 of which insertion openings 18, 20 are formed. Adjacent to both insertion openings 18, 20 there adjoins a receiving space 44, 46 which is closed on all sides, that is to say not only on the peripheral side but also on the bottom side, the peripheral inner side 48 of which is formed by the material of the carrier layer 12. Adjacent to the respective insertion opening 18 and 20, an anchoring recess 50 and a positioning recess 52 are formed in the carrier layer 12 like a bowl or like a small hat. The sound-deadening element 10 rests against the vehicle body 49, as is shown in Figure 3 .

[0058] As is apparent from Figure 3 It can be seen that the receiving space 46 of the anchoring recess 50 has a narrowing 54 which is formed on the peripheral inner side 48 of the receiving space 46 on all sides or partially and circumferentially. In this embodiment, the narrowing 54 is formed as a bulge 56 which projects inwards into the receiving space 46. This structure of the receiving space 46 with a kind of side recess can be produced in injection-moulding technology by forced demoulding or by an injection mould provided with a folding core. Adjacent to the narrowing 54 there adjoins a widening 68 towards the bottom face 66 of the receiving space 46.

[0059] The positioning recess 52 is likewise closed on its bottom face 69 and on its peripheral side. Both recesses, that is to say the anchoring recess 50 and the positioning recess 52, are thus formed as blind holes.

[0060] The anchoring shoulder 58 for the cooperation of the anchoring element 24 with the anchoring recess 50 is formed on the shank 30 of the anchoring element 24 and projects radially therefrom and, in the installed state, points towards the insertion opening 18. This anchoring shoulder 58 can be formed as the tab closest to the peripheral flange 36. This is not mandatory, however.

[0061] Figure 4 An alternative design of the fixing device according to the application is shown. As far as the elements of the fixing device shown in Figure 4 are functionally or structurally comparable to those according to Figure 3 , these elements are provided in Figure 4 with the same reference numerals as in Figure 3 .

[0062] In Figure 4In this embodiment of the fixing device, only one anchoring element 24' exists, and there is no corresponding positioning element 26. Multiple such individual anchoring elements 24' can be used. The component to be fixed to the sound insulation element 10 is, for example, a cable or ventilation channel. This cable or ventilation channel has a through opening 60 in its channel wall 62, through which the anchoring element 24' can be guided and inserted into an anchoring recess 50 in the sound insulation element 10 aligned with the through opening 60. In this embodiment, the anchoring element 24' can, in principle, be as described... Figures 1 to 3 The anchoring element 24 of the fixing device is constructed in the same way. The difference is that the anchoring element 24' is not connected to other elements (in the same way). Figures 1 to 3 In this case, the component 22 is constructed as a single unit.

[0063] In addition, Figure 4 The diagram shows a variant of the anchoring element 24' configured as an expansion pin. A core pin 64 can be seen, which can be inserted into the shank 30 through a circumferential flange 28 (the widened head of the anchoring element 24) having a through opening 70.

[0064] exist Figure 5 The text shows the data according to... Figure 4 A variation of the design of the fixing device is that the narrowing region 54 is extended in terms of its axial depth extension dimension. For example, in Figures 1 to 4 As shown in the diagram, a widening region 68 is adjacent to the bottom surface 66 of the narrowing region 54 facing the anchoring recess 50 (see especially). Figure 3 and Figure 4 ).

[0065] exist Figure 6 Another embodiment of the fixing device is shown, wherein the anchoring element 24” is also configured as an expansion pin (as in Figure 4 and 5 (as in the middle), but constructed as an integral part of the vehicle components to be fixed (similar to in Figures 1 to 3 (As shown in the diagram). A through opening 70 extends through the circumferential flange 38 of the anchoring element 24”, and this through opening is aligned with a cavity in the shank 30 of the anchoring element 24”. The component to be secured also has a through opening 72 aligned with the through opening 70.

[0066] List of reference numerals

[0067] 10 Sound insulation elements

[0068] 13. Sound Absorption Layer

[0069] 12. Carrier layer

[0070] 14 One side of the carrier layer

[0071] 16 Grooves

[0072] 18 insertion opening of anchoring recess

[0073] 20 insertion opening of positioning recess

[0074] 22 holding element

[0075] 24 anchoring element

[0076] 24' anchoring element

[0077] 24" anchoring element

[0078] 26 positioning element

[0079] 28 vehicle component

[0080] 30 shank of anchoring element

[0081] 32 tab

[0082] 34 end of shank

[0083] 36 circumferential flange

[0084] 38 circumferential edge region of circumferential flange

[0085] 40 opening edge

[0086] 42 shank of positioning element

[0087] 44 receiving space of anchoring element

[0088] 46 receiving space of positioning element

[0089] 48 circumferential inner side

[0090] 49 vehicle body

[0091] 50 anchoring recess

[0092] 52 positioning recess

[0093] 54 narrowing region of anchoring recess

[0094] 56 protrusion

[0095] 58 anchoring shoulder

[0096] 60 through opening in channel wall

[0097] 62 channel wall

[0098] 64 core pin

[0099] 66 bottom face of anchoring recess

[0100] 68 widening region of anchoring recess

[0101] 69 bottom surface of the positioning recess

[0102] 70 through opening in the anchoring element

[0103] 72 through opening in the vehicle component

Claims

1. Device for fastening a vehicle component in and / or on a vehicle, the device having a sound-deadening element (10), wherein The sound-insulating element (10) comprises a carrier layer (12) of a plastic material, which has a first side (14) and a second side facing away from the first side, and a sound-deadening layer (13) of the same plastic material or of a synthetic or natural fiber material, which is integrally formed on the second side of the carrier layer (12), wherein an anchoring recess (50) is formed in the carrier layer (12), which has an insertion opening (18) in the first side (14) of the carrier layer (12), on which an accommodation space (46) is adjoined, which is delimited by the plastic material of the carrier layer (12) and is defined by a closed circumferential inner side (48) and a closed bottom face (66), and the device has an anchoring element (24, 24', 24") for accommodation in the anchoring recess (50), which is configured to be integral with a component to be fixed on the carrier layer (12) of the sound-insulating element (10) or to be integral with a holding element (22) on which a component to be fixed on the carrier layer (12) of the sound-insulating element (10) can be mounted, or which can be guided through a through-opening (70) formed in a vehicle component (28) to be fixed on the carrier layer (12) of the sound-insulating element (10), the anchoring recess (50) has a narrowing region (54) formed on the circumferential inner side (48), which at least partially narrows the accommodation space (46), and a widened widening region (68) adjoining towards the bottom face (66), and the anchoring element (24, 24', 24") has an anchoring shoulder (58) for engaging the narrowing region (54) from the rear when the anchoring element (24, 24', 24") is accommodated by the anchoring recess (50), a positioning element (26) is provided, which is configured to be integral with a component to be fixed on the carrier layer (12) of the sound-insulating element (10) or is integrally configured on a holding element (22) on which a component to be fixed on the carrier layer (12) of the sound-insulating element (10) can be mounted, a positioning recess (52) is formed in the carrier layer (12) of the sound-insulating element (10), which has an insertion opening (20) in the first side (14) of the carrier layer (12), on which an accommodation space (44) is adjoined, which is delimited by the plastic material of the carrier layer (12) and is defined by a closed circumferential inner side (48) and a closed bottom face (69), the positioning element (26) and the anchoring element (24, 24', 24") can be inserted and / or can be embedded into their respective recesses mating with the positioning element and the anchoring element, respectively, when they are oriented in alignment with the positioning recess (52) and the anchoring recess (50), respectively, and The carrier layer (12) has a recess (16) in which two insertion openings (18, 20) are present, one of which insertion openings (18) belongs to an anchoring recess (50) and the other insertion opening (20) enables access to a positioning recess (52).

2. The apparatus of claim 1, wherein, The pair consisting of anchoring element (24, 24', 24") and anchoring recess (50) and positioning element (26) and positioning recess (52) is mechanically coded differently in order to prevent a component to be fixed on the carrier layer (12) of the sound-deadening element (10) from being misoriented in its fixed state.

3. The apparatus of claim 2, wherein, The anchoring element (24, 24', 24") and the anchoring recess (50) have a first, cylindrical cross section which is identical to one another, the positioning element (26) and the positioning recess (52) have a second, cylindrical cross section which is identical to one another, and the size of the first cross section differs from the size of the second cross section.

4. The apparatus of claim 1, wherein, The anchoring element (24, 24', 24") and the anchoring recess (50) have a first cross-sectional area which is identical to one another, the positioning element (26) and the positioning recess (52) have a second cross-sectional area which is identical to one another and which differs from the first cross-sectional area or which is equal to the first cross-sectional area and is oriented twistedly relative to the first cross-sectional area.

5. The apparatus of one of claims 1 to 4, characterized in that The insertion opening (18) of the anchoring recess (50) has an opening edge (40) and the anchoring element (24, 24', 24") has a circumferential flange (36) with a circumferential edge region (38) which protrudes beyond the edge of the insertion opening (18) of the anchoring recess (50) and thus covers the insertion opening (18) of the anchoring recess (50) in the state in which the anchoring element (24, 24', 24") is accommodated thereby.

6. The apparatus of one of claims 1 to 4, characterized by The insertion opening (20) of the positioning recess (52) has an opening edge (40) and the positioning element (26) has a circumferential flange (36) with a circumferential edge region (38) which protrudes beyond the edge of the insertion opening (20) of the positioning recess (52) and thus covers the insertion opening (20) of the positioning recess (52) in the state in which the positioning element (26) is accommodated thereby.

7. The apparatus of one of claims 1 to 4, characterized by The anchoring element has a barb-like structure on its outer circumference.

8. The apparatus of one of claims 1 to 4, characterized by The holding element (22) is essentially flat.

9. The apparatus of one of claims 1 to 4, characterized by The holding element can be positioned in a recess (16) which is embodied in the carrier layer (12).

10. The apparatus of claim 9, wherein, The holding element can be positioned in the recess such that the holding element is spaced apart from the bottom of the recess by a distance.

11. The apparatus of claim 10, wherein, The anchoring recess has a depth which is selected such that the anchoring element does not extend up to the bottom of the anchoring recess in the fitted state.

12. The apparatus of one of claims 1 to 4, characterized by The sound-deadening element (10) is a front wall trim panel, a floor trim panel, a luggage compartment trim panel or an engine or a power pack or a wheel house trim panel.

13. The apparatus of one of claims 1 to 4, characterized by The anchoring recess (50) is embodied as a blind hole in the carrier layer (12) and the sound-deadening element (10) does not have a through opening.

14. Motor vehicle, with a device according to one of claims 1 to 13.

Citation Information

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