AU2012224891A1

AU2012224891A1 - Fastening apparatus for fastening a functional device to the wall of a recreation vehicle

Info

Publication number: AU2012224891A1
Application number: AU2012224891A
Authority: AU
Inventors: Ekkehard Gross; Sebastian Haertig; Werner HILLER; Mathias Venschott
Original assignee: Truma Geraetetechnik GmbH and Co KG
Current assignee: Truma Geraetetechnik GmbH and Co KG
Priority date: 2011-03-04
Filing date: 2012-03-02
Publication date: 2013-10-17
Anticipated expiration: 2032-03-02
Also published as: AU2012224891B2; DK2681080T3; EP2681080B1; ES2535744T3; DE202011003575U1; WO2012119743A1; EP2681080A1

Abstract

A fastening apparatus is used for fastening a functional device (1) to an aperture (3) in a wall device (2) of a recreation vehicle, wherein the functional device (1) has a fastening flange (4), an adapter device (6) is provided between the fastening flange (4) of the functional device (1) and the wall device (2), a wall sealing surface is formed between the adapter device (6) and a subregion/region, which surrounds the aperture (3), of an outer or inner surface of the wall device (2), and wherein a fastening sealing surface is formed between the adapter device (6) and the fastening flange (4).

Description

T13872 AU Fastening Device for Fastening a Functional Unit to the Wall of a Recreational Vehicle The invention relates to a fastening device for fastening a functional unit to an aperture in a wall means of a recreational vehicle. 5 With recreational vehicles such as caravans or campervans, it Is known to mount roof air conditioning units on the roofs of the recreational vehicles. In doing so, frequently the cutout, provided for a skylight, in the vehicle roof of the recreational vehicle is made use of, with the roof-mounted air conditioning unit being placed on top instead of the skylight. For sealing between the lower side of 10 the air conditioning unit and the upper side of the roof structure, provision is typically made for a squeeze-type or lip seal. The sealing effect is obtained by the firm mounting of the roof-mounted air conditioning unit on the skylight cutout. It has, however, been found that In the case of any appreciable uneven portions of the roof or sealant residues of formerly installed skylights, an effective 15 sealing is often hardly realizable. In this case, mostly an attempt is made to fill in any gaps and uneven portions that may exist using additional sealing compound, in order to achieve a sufficient sealing effect. Especially when an already existing skylight or the already existing cutout for such a skylight Is to be made use of for mounting a roof-mounted air conditioning 20 unit, there is often the problem that for the fastening bolts of the skylight, drilled holes or milled recesses have been applied in the caravan roof which protrude far over the typical, mostly rectangular or square contour of, for example, 400 mm by 400 mm. This means that the cross-section gf the opening which, in principle, is rectangular or square, may be enlarged further outwards at various places by 25 drilled holes or milled recesses. When a roof-mounted air conditioning unit with a sealing lip is applied in such a case, there is the risk that the sealing lip extends over the milled recesses or drilled holes, so that there is no longer a sealing effect in these areas. The course of the sealing lip is typically oriented here by the assumption that the skylight cutout is uniform, that is, square or rectangular, 30 so that any milled recesses or drilled holes are not taken into consideration. In such a case, the milled-out corners are filled in with sealing compound in order to still obtain a sealing effect. This, for one thing, is laborious and requires special -2 care; for another thing, however, with changes in temperature and with insolation, a permanent sealing effect can not be guaranteed. In addition to the measures described above, frequently a further sealant, for example Sikaflexe, is applied onto the contact surface between the roof-mounted 5 air conditioning unit and the vehicle roof and is used to glue the system onto the roof. In this case, a simple disassembly of the air conditioning unit is no longer possible. Figure 3 schematically shows such a structure. A roof 50 of a recreational vehicle, that is, of a campervan, for example, has a 10 roof cutout with an aperture 51. A skylight, which is now no longer illustrated, was formerly installed in this aperture 51 and was removed to install a roof mounted air conditioning unit 52 on top. The roof-mounted air conditioning unit 52 is held on the roof 50 with the aid of fastening means (not shown). To obtain a sealing in the joint between the roof 15 mounted air conditioning unit 52 and the roof 50, a surrounding groove 54 is formed in a fastening surface 53, an O-seal 55 being placed in the groove 54. The O-seal 55 may, for example, form a closed ring; this, however, can not be recognized due to its schematic illustration in Figure 3. But it can be clearly seen in Figure 3 that the O-seal 55 rests directly on the roof 50 to produce the desired 20 sealing effect. If the aperture 51 has an outer contour which always extends within the 0 seal 55, a satisfactory sealing effect can be obtained in this way, provided that the surface of the roof 50 is not Interfered with by uneven portions or soiling. It is, however, known from experience that the cutouts for the aperture 51 25 may also be irregular and become partly significantly larger outwards at some points on the circumference of the aperture 51. Such a radial enlargement (to the right in Figure 3) is indicated by the dashed line 56. At this point, the aperture 51 has a recess projecting more deeply into the wail of the roof 50 and extending so far that the O-seal 55 can no longer contact the surface of the roof 50. As a 30 result, there is no longer a sealing effect in this region, which leads to the problems described above.

-3 The object of the invention is to indicate a way of fastening by which a functional unit, for example a roof-mounted air conditioning unit, can be reliably fastened to an aperture or cutout In the wall of a recreational vehicle, it being intended to avoid the tightness problems described above. 5 The object is achieved according to the invention by a fastening device having the features of claim 1. Advantageous further developments are indicated in the dependent claims. A fastening device for fastening a functional unit to an aperture in a wall means of a recreational vehicle is indicated, the functional unit including a 10 fastening flange, an adapter means being provided between the fastening flange of the functional unit and the wall means, a wall sealing surface being formed between the adapter means and a partial region, surrounding the aperture, of an outer or inner surface of the wall means, and a fastening sealing surface being formed between the adapter means and the fastening flange. 15 The functional unit may more particularly be selected from the group Including an air conditioning unit, blower unit, heating installation, external antenna, satellite antenna, wind turbine, solar energy system, ventilation means (e.g. also ventilation louver), water storage tank, sanitary installation, shower unit, toilet unit, refrigerator, cooking unit, stowage container, furniture means, or wall 20 member. All walls of a recreational vehicle are suitable as a wall means, namely more particularly a side wall, the vehicle roof, or the vehicle floor. But a door, a window, a roof window, inside walls, inside doors or surfaces of interior furnishings (furniture) may also be suitable as a wall means. In particular 25 campervans or caravans are to be understood by recreational vehicles. With the aid of the adapter means it is possible to create a reliable connection between the wall means and the functional unit, in this way, the adapter means can be firmly fastened in or at the aperture, for example a cutout for a skylight, in the wall means (in the example mentioned: the vehicle roof). The fastening may 30 be carried out in a suitable manner; it should more particularly be made sure here that the wall sealing surface exists between the adapter means and the corresponding associated outer or inner surface of the wall means. The wall -4 sealing surface should be sealed in a suitable manner, for example with the aid of a sealant to be applied. In this way, the adapter means Is fastened in the aperture, the desired sealing effect being achieved between the adapter means and the wall means. 5 in addition, the adapter means can serve for stiffening and thus for stabilizing the aperture or cutout in the wall means since the adapter means can exhibit a high inherent stability and stiffness which, as a rule, is assumed to be higher than the stability of the wall means. In this connection, it should be noted that typical vehicle walls and roofs in most cases only consist of a thin metal sheet or two 10 metal sheets with a thermally insulating material inserted in between. By nature, the inherent stability of the metal sheets is extremely low. The insulating material provided in between is also hardly suitable to obtain a high strength. The adapter means as a frame part, on the other hand, can result in a marked stabilization, which in particular is also of advantage if it is Intended to mount the functional 15 unit, for example a heavy air conditioning unit, to the adapter means. Accordingly, the fastening sealing surface is provided between the adapter means and the fastening flange, the fastening sealing surface more specifically being a contact surface between the adapter means and the fastening flange of the functional unit, which likewise needs to be sealed in a suitable manner. This 20 may, for one thing, be effected with the aid of an additional sealant, but, for another thing, can also be achieved on the design level by an appropriate configuration of the adapter means and the fastening flange, as will be explained further below. The adapter means constitutes a defined connection facility for the functional 25 unit, so that any desired functional unit can be fastened to the adapter means, provided that the specified, possibly standardized connecting dimensions are adhered to. Any "handicraft" or "mending" using filling or sealing compounds as is common and necessary in the prior art is then no longer required. The adapter means may include a carrier member, an aperture ooupling, and 30 a flange coupling. In this way, at least three functions are united in the adapter means, namely, respectively appropriate coupling regions for coupling the adapter means to the wall means, on the one hand (aperture coupling), and to -5 the functional unit, on the other hand (flange coupling for the fastening flange). The carrier member serves to hold the aperture coupling and the flange coupling. The adapter means may be formed in one piece. In this manner, it is relatively simple to manufacture and to mount, without it being required to join a 5 plurality of parts to one another during mounting, which would typically involve some sealing effort again. In particular, the adapter means may be formed to be annularly closed and follow the profile of the outer contour of the aperture. In this case, the adapter means is frame-shaped or formed as a frame part which may, for example, be 10 inserted in or placed on the aperture of the wall means. As a result of the fact that the adapter means follows the profile of the outer contour of the aperture, it is not required to cover unnecessary regions of the aperture. The adapter means may therefore be annularly closed, the carrier member including an annularly surrounding flat plate, the aperture coupling being formed 15 as a rib structure located circumferentially on the carrier member and extending perpendicularly to the carrier member, the flange coupling being formed as a rib structure located circumferentially on the carrier member and extending perpendicularly to the carrier member, and the aperture coupling and the flange coupling being formed on opposite sides of the carrier member. 20 The annular circumferential flat plate of the carrier member may also be understood to be a plate which has a cutout in its interior which substantially corresponds to the contour of the aperture or may even be somewhat smaller. A rib structure which serves as the aperture coupling and may therefore be made use of for fastening the adapter means to or within the aperture of the wall means 25 extends perpendicularly from this plate or from the carrier member. Correspondingly, the flange coupling is likewise formed on the carrier member, but typically on the other side, opposite the aperture coupling, the flange coupling extending as a rib structure likewise extending perpendicularly to the carrier member. The flange coupling with its rib structure again serves to 30 connect the functional unit. The flange coupling may include a sealing edge which forms part of the fastening sealing surface and sealingly cooperates with the fastening flange of -6 the functional unit. Thus, the flange coupling may have a sealing edge defined thereon which is assigned to the fastening flange in a special way and allows a sufficient sealing effect without any additional sealants having to be provided. The fastening flange may consist of an elastic material, the sealing edge 5 being able to penetrate into the fastening flange and elastically deform the elastic material, The elastic effect between the sealing edge and the fastening flange allows a sufficient sealing effect to be obtained. It is also possible that the entire flange coupling or only the sealing edge thereof consists of an elastic material. In this case, the fastening flange may also 10 be rigid, with a tight connection between the fastening flange and the sealing edge being made possible nonetheless. To produce the flange coupling, a two component injection molding process may be utilized, for example, in order to connect the elastic material with the rigid material of the rest of the adapter means. 15 In one variant, the carrier member may rest flatly against the wall means by the flat plate. Here, in particular, it may be brought into surface-to-surface contact with the outer or inner surface of the wall means. Like the carrier member, the flat plate may have an annularly closed profile, its annularly closed profile resulting in that it has an inner contour enclosing an 20 inner cutout in the plate and an outer contour. In this way, it corresponds to a flat, plate-shaped ring with a corresponding contour which, depending on the shape of the aperture, may be rectangular, square or circular, for example. A radial width of the flat plate is defined by the difference between the inner contour and the outer contour, the radial width of the flat plate being at least twice 25 as large as the thickness of the flat plate. Of course, the radial width may also be even distinctly larger. In particular, the radial width may be dimensioned such that it is sufficient to cover milled recesses or drilled holes, for example, which, as described above in connection with the prior art, may be required in the installation of usual skylights, 30 but may lead to tightness problems after the replacement of a skylight by an air conditioning unit.

-7 The radial width of the flat plate and therefore of the carrier member may thus be dimensioned very generously to obtain a surface-to-surface contact between the carrier member and the outer or inner surface of the vehicle wall. If a sealant is introduced into the surface-to-surface connection between the carrier member 5 and the respective part of the wall means, a reliable sealing effect can be obtained. The sealant may also be formed directly on the flat plate or may be part of the flat plate. In this way, it is possible, for example, to apply an elastic bead as a sealant on the flat plate. The elastic bead can be integrally injection molded by 10 means of a two-component injection molding procedure. A clamping means may be provided for holding or pressing the functional unit against the adapter means and the wall means. With the aid of the clamping means, the functional unit can thus be reliably held firmly against the adapter means and the wall means. When the clamping means is released, however, it 15 may easily be possible to remove the functional unit and to separate it from the adapter means. The' adapter means, on the other hand, may remain in the wall means and, depending on the configuration, may be permanently fastened to the wall means. The latter is useful in particular when a permanent sealant is incorporated between the adapter means and the wall means. 20 The clamping means may include a counter element arranged opposite the carrier member of the adapter means with respect to the wall means, such that the wall means can be clamped between the carrier member and the counter element. The clamping means may be, for example, a bolting means, where the functional unit is braced against the wall means and the adapter means with the 25 aid of bolted connections and, for example, a metal fastening plate. It is also possible to design the clamping means as a quick-release fastener which reaches a predefined clamping force. The clamping force in the form of a pretension can be reached in that at least one of the components of the quick release fastener involved, e.g. a bolted connection, a counter element or the 30 metal fastening plate, consists of an elastic material. It is also possible to provide a spring means. The clamping means may include a toggle lever, a locking means, a bayonet means or a twisting means, for example.

-8 The counter element, which is part of the clamping means, may also be formed to be annularly closed. Here, the counter element may include flanges or ribs for stabilization or for an improved fastening to or clamping effect at the wall means. 5 A large variety of different units and installations may be suitable as functional units. By way of example, a roof-mounted air conditioning unit has already been described as a functional unit. It is also possible to make use of an aperture In a side wall of the vehicle to mount an air conditioning unit on the side. It is also possible to fasten an external antenna such as, for example, a 10 satellite antenna or a DVBT antenna to the aperture. For this purpose, the antenna should have a base which suitably carries or includes a fastening flange in the above sense. In the same way, a wind turbine or a solar energy system to generate electricity may be provided; in this case, too, provision is made for a carrier or base having a suitable fastening flange to fasten it at or in the aperture 15 with the aid of the adapter means. As an alternative to the air conditioning unit, provision may also be made merely for a blower unit, for example, a ceiling fan. The blower unit may blow fresh air from outside into the interior of the recreational vehicle or, vice versa, may transport air from inside outwards. Likewise, the blower unit may be in the 20 form of a pure ceiling fan, which merely circulates the air inside the vehicle. It is also possible to provide a heating installation as the functional unit. In this way, the stowage space that is needed for the heating installation in winter may be utilized by an air conditioning unit in summer, for example. The heating installation and the air conditioning unit are then simply exchanged at the adapter 25 means. A suitable ventilation means may also be a simple ventilation louver, the opening of which may be variable or else non-variable. For the ventilation louver, a cover may, for example, also be provided which, if necessary, replaces or covers the ventilation louver supported by the adapter means. 30 Various sanitary installations may also be provided as the functional unit, such as, for example, a water storage tank for storing water that is needed in the recreational vehicle, or a shower or toilet unit.

It is also conceivable that the functional unit is constituted by kitchen, furniture or living facilities, such as a refrigerator, for example, which is fastened on the inside or outside of a wall of the recreational vehicle with the aid- of the adapter means. If the refrigerator is mounted on the outside, it is possible to open the 5 refrigerator door inwards, through the aperture. Likewise, a cooking unit could be fastened to the wall on the inside or on the outside. Of course, the visible part of the aperture may in all cases be configured in a visually appealing fashion. Finally, in one variant it is also possible to insert a simple wall mrnember with a 10 suitable fastening flange into the aperture in order to close the aperture when no other functional unit is provided. The wall member can thus permanently close a skylight, for example. The wall member may, however, also be designed as a skylight and, as such, may be configured to be either permanently closed or openable. In addition, the wall member can be designed to be opaque or 15 transparent (for example made of glass). The adapter means may have at least one opening for forced ventilation provided therein, for coupling an inside of the adapter means to an outside of the adapter means, so that air can flow from the inside to the outside and/or vice versa. By means of the opening for forced ventilation it can be ensured that the 20 inside, in particular an interior enclosed by the wall means, e.g. the interior of a campervan or caravan, is compulsorily always in connection with the outside, e.g. the surroundings of the campervan. The forced ventilation of the interior is required for example when a gas heating is provided in the interior. For operating the gas heating, it must be possible that air from the environment can enter the 25 interior. One or more openings for forced ventilation may be provided in a suitable manner in the adapter means, e.g. in the carrier member. The openings for forced ventilation should be splash-proof to prevent rainwater from entering, for example. Likewise, any ingress of dirt or vermin should be prevented. 30 These and further advantages and features of the Invention will be explained in more detail below by means of an example with the aid of the accompanying Figures, in which: -10 - Figure 1 shows an exploded illustration of a fastening device according to the invention, for fastening a roof-mounted air conditioning unit onto the roof of a vehicle; - Figure 2 shows the fastening device of Figure 1 in an assembly illustration; 5 and - Figure 3 shows a schematic illustration of an example from the prior art. Figures 1 and 2 show an example of a fastening device according to the invention, which is utilized for fastening a roof-mounted air conditioning unit 1 onto the roof 2 of a recreational vehicle. 10 The roof 2 has a roof cutout in the form of an aperture 3. The roof 2 is constructed in a conventional manner and consists, for example, of a sheet metal structure having one or two metal sheets that are reshaped in a suitable fashion to give them the necessary stability. For example, two sheet metal layers may be formed between which an insulating material is introduced for thermal insulation. 15 However, irrespective of how the roof 2 is structured, it can be assumed that the stability of the roof 2 is impaired, that is, weakened by the aperture 3. The roof-mounted air conditioning unit I involved may be a usual roof mounted air conditioning unit in which a respective refrigerant circuit is provided, having an evaporator, a condenser, a compressor, and corresponding blowers. 20 The exact structure of the roof-mounted air conditioning unit I is not relevant in the present case. The roof-mounted air conditioning unit 1 may have a housing made of metal or plastic. It has been found to be particularly advantageous if the roof-mounted air conditioning unit, at least in the lower region facing the roof 2, consists of an 25 expanded plastic material, for example EPP. EPP is very lightweight, elastic, but nonetheless dimensionally stable, robust and weather-resistant. In the present example, it is assumed that on its lower side, the roof-mounted air conditioning unit has a fastening flange 4 which is formed from EPP, for example. Formed in the fastening flange 4 Is a surrounding annular groove 5 which is 30 designed such that it completely surrounds the aperture 3. In the prior art, an 0 seal, not illustrated here, may be inserted in the annular groove 5 in order to -11 sealingly close the separating surface between the roof-mounted air conditioning unit 1 and the roof 2. Instead, according to the invention, provision is made for an adapter means 6 which is inserted between the fastening flange 4 of the roof-mounted air 5 conditioning unit 1 and the roof 2. The adapter means 6 includes a carrier member 7 that is configured in the form of a flat plate 7, from one side of which, more specifically the lower side, a rib structure extends as an aperture coupling 8. In the completely assembled condition shown In Figure 2, the aperture coupling 8 thus protrudes downwards 10 into the aperture 3. From the other, opposite, i.e. upper side of the carrier member 7, a rib structure extends vertically upwards as a flange coupling 9. As shown in Figure 2, the flange coupling 9 penetrates into the annular groove 5, so that a sealing effect can be obtained between the flange coupling 9 and the fastening flange 4 15 or its annular groove 5. The carrier member 7 of the adapter means 6 Is designed in the form of a flat plate which is annularly circumferential, corresponding to the outer contour of the aperture 3. The flat plate can thus be understood to be a plate which has a cutout in the center, the cutout being somewhat smaller than the aperture 3, due 20 to the internal aperture coupling 8. The flat plate may have a relatively small thickness in order to keep the height of the structure on the roof 2 low. The radial width, however (in Figures 1 and 2 the horizontal width of the carrier member 7) is significantly larger compared with the thickness of the carrier member 7. Since the flat plate of the carrier member 25 7 is placed onto the outer surface of the roof 2, a stabilization of. the roof 2 can be effected in this way. In addition, it is possible and expedient to permanently introduce a sealant between the carrier member 7 and the roof 2, so that a reliable sealing effect can be obtained between the adapter means 6 and the roof 2. It is to be appreciated 30 here that the adapter means 6 needs to be placed onto the roof 2 and into the aperture only once and need not be dismounted again later. Rather, the functional unit - the roof-mounted air conditioning unit 1 in the example shown - -12 can easily be dismounted and removed again If it is to be replaced by a different functional unit. It is conceivable, for example, that the roof-mounted air conditioning unit 1 is dismounted in winter and replaced by a thermally Insulated roof plate or a suitable wall member. 5 The roof-mounted air conditioning unit 1 is mounted on the roof 2 with the aid of a bolted connection 10 serving as a clamping means. The bolted connection 10 Includes a plurality of bolts 11 on the circumference of the aperture 3, which penetrate through an annular flat plate 12 or similar counter elements which, for its part, is held by bolts 13 on the inside of the roof 2. 10 The bolts 11 (only one bolt 11 is illustrated in Figures 1 and 2) pass through the aperture coupling 8 of the adapter means 6 and can each be threaded into a nut 14 which is captively provided in the fastening flange 4 of the roof-mounted air conditioning unit 1 so as to prevent rotation. In this way, the roof-mounted air conditioning unit I can be reliably fastened to the aperture 3 of the roof 2 by 15 tightening the bolts 11. When the bolts 11 are tightened, the flange coupling 9 penetrates Into the annular groove 5. Provided on the upper side or the front face end of the flange coupling 9 is a sealing edge 15 which penetrates deeply into the elastic annular groove 5 and the groove base 5a thereof, whereby a reliable sealing effect is 20 obtained. The adapter means 6 may, of course, also be configured in different ways. The adapter means 6 has the function of providing at the aperture 3 a universal connection facility for a large variety of functional units. With the adapter means 6 being appropriately designed, it Is possible to additionally stabilize the wall of 25 the roof 2. Provided on the adapter means 6 is a suitable connection facility for the functional unit in the form of the flange coupling 9. The flange coupling 9 may be standardized in a suitable manner to allow a variety of functional units to be connected. The adapter means 6 and/or the counter element, e.g. the annular flat plate 30 12, may be configured such that no additional stiffening or backing of the aperture 3 is necessary. This means that the weakening of the strength of the -13 wall means (the roof 2) as caused by the production of the aperture 3 can be compensated for by the adapter means 6. For generating a contact pressure and a sealing effect between the carrier member 7 and the roof 2, use may also be made of a partial vacuum or vacuum, 5 e.g. by rubber suction cups or between two parallel frame-shaped circumferential rubber sealing lips. One or more of the components described may be made from a transparent material, so that daylight can enter the interior of the vehicle. It is also possible here to form special structures in the components concerned, in order to 10 selectively guide the light. It is also possible to integrate lighting elements, e.g. light-emitting diodes, into the components. The lighting elements may also be combined with the transparent parts. In the example shown, the aperture 3 is formed in the roof 2 of a vehicle. It is also possible to produce such an aperture 3 in a side wall or also in the floor of 15 the vehicle and to mount suitable functional units there. Of course, it is also possible to provide a plurality of apertures 3 in the walls of a vehicle. in this respect, the adapter means 6 serves as a multifunctional adapter or as a multifunctional frame and can be expanded in any desired manner to systems which require a sealed aperture in a floor, a wall or a roof. Here, the respective 20 aperture and the adapter means may have different, ideally standardized sizes. As in the example shown, the functional unit may be mounted to the outside of the wall. It is likewise possible to fasten the functional unit on the Inside of the roof. In that case, the arrangement shown in Figures 1 and 2 merely needs to be turned by 180 degrees. 25

Claims

1. A fastening device for fastening a functional unit (1) to an aperture (3) in a wall means (2) of a recreational vehicle, wherein 5 - the functional unit (1) includes a fastening flange (4); - an adapter means (6) is provided between the fastening flange (4) of the functional unit (1) and the wall means (2); - a wall sealing surface is formed between the adapter means (6) and a partial region/region, surrounding the aperture (3), of an outer or inner surface of 10 the wall means (2); and - a fastening sealing surface is formed between the adapter means (6) and the fastening flange (4).

2. The fastening device according to claim 1, characterized in that the adapter means (6) includes a carrier member (7), an aperture coupling (8), and a 15 flange coupling (9).

3. The fastening device according to claim I or 2, characterized in that the adapter means (6) is formed in one piece.

4. The fastening device according to any of the preceding claims, characterized in that the adapter means (6) is formed to be annularly closed and 20 follows the profile of the outer contour of the aperture (3).

5. The fastening device according to any of the preceding claims, characterized in that - the adapter means (6) is formed to be annularly closed; - the carrier member (7) includes an annularly surrounding flat plate; 25 - the aperture coupling (8) is formed as a rib structure located circumferentially on the carrier member (7) and extending perpendicularly to the carrier member (7); -15 - the flange coupling (9) is formed as a rib structure located circumferentially on the carrier member (7) and extending perpendicularly to the carrier member (7); and in that - the aperture coupling (8) and the flange coupling (9) are formed on 5 opposite sides of the carrier member (7).

6. The fastening device according to any of the preceding claims, characterized in that the flange coupling (9) includes a sealing edge (15) which forms part of the fastening sealing surface and sealingly cooperates with the fastening flange (4) of the functional unit (1). 10

7. The fastening device according to any of the preceding claims, characterized in that - the fastening flange (4) consists of an elastic material; - the sealing edge (15) penetrates into the fastening flange (4) and elastically deforms the elastic material. 15

8. The fastening device according to any of the preceding claims, characterized in that the carrier member (7) rests flatly against the wall means (2) by the flat plate.

9. The fastening device according to any of the preceding claims, characterized in that 20 - the flat plate has an annularly closed profile, its annularly closed profile resulting in that it has an inner contour enclosing an inner cutout in the plate and an outer contour; - a radial width of the flat plate is defined by the difference between the inner contour and the outer contour; 25 - the radial width of the flat plate is at least twice as large as the thickness of the flat plate.

10. The fastening device according to any of the preceding claims, characterized in that a sealant is present between the flat plate and the wall means (2). -16

11. The fastening device according to any of the preceding claims, characterized in that a clamping means (10) is provided for pressing the functional unit (1) against the adapter means (6) and the wall means (2).

12. The fastening device according to any of the preceding claims, 5 characterized In that the clamping means (10) includes a counter element (12) arranged opposite the carrier member (7) of the adapter means (6) with respect to the wall means (2), such that the wall means (2) can be clamped between the carrier member (7) and the counter element (12).

13. The fastening device according to any of the preceding claims, 10 characterized in that the functional unit (1) is selected from the group Including an air conditioning unit, blower unit, heating installation, external antenna, satellite antenna, wind turbine, solar energy system, ventilation means, sanitary installation, water storage tank, shower unit, toilet unit, refrigerator, cooking unit, stowage container, furniture means, or wall member. 15

14. The fastening device according to any of the preceding claims, characterized in that the wall means (2) is selected from the group including a side wall, vehicle roof or vehicle floor of the recreational vehicle.

15. The fastening device according to any of the preceding claims, characterized in that the adapter means (6) has at least one opening for forced 20 ventilation provided therein, for coupling an inside of the adapter means (6) to an outside of the adapter means (6), so that air can flow from the inside to the outside and/or vice versa.