Lining unit for the shape-replacement of a room

Abstract

The invention relates to a lining unit (1) with a base part (4) and side parts (5, 6, 7, 8) extending from the base part (4), wherein the base part (4) and the side parts (5, 6, 7, 8) are formed from a waterproof film. To further develop such a lining unit (1), it is proposed that the base part (4) is formed in one piece with at least one side part (5, 6, 7, 8), wherein the lining unit (1) is prefabricated for lining a room (2) such as a wet room, wherein the dimensions of the base part (4) correspond to the area of ​​the floor of the room (2), and wherein the dimensions of each side part (5, 6, 7, 8) correspond to the area of ​​a wall or an opening, such as a door, of the room (2), wherein the side parts (5, 6, 7, 8) completely surround the base part (4) and the base part (4) and the side parts (5, 6, 7, 8)8) each have an inner and an outer surface, wherein the inner surfaces are further formed with an adhesion structure (35) for the attachment of tiles (32), wherein the side parts (5, 6, 7, 8) form a right or obtuse angle with each other in a cross-section parallel to the floor with respect to their inner or outer surfaces and have different heights (a, b), namely, in any case, a first and a second side part (5, 6, 7, 8) have a first height (a) and a third and optionally further side parts (5, 6, 7, 8), including in particular an opening side part (5, 6, 7, 8), have a second height (b), wherein the first height (a) corresponds to a multiple of the second height (b).

Description

field of technology

[0001] The invention relates to a lining unit with a base part and side parts extending from the base part, wherein the base part and the side parts are formed from a waterproof film. State of the art

[0002] Lining units of the type in question are known in the prior art.

[0003] These are used to seal wet areas in buildings, especially damp rooms such as bathtubs, showers, etc. The lining unit prevents moisture from penetrating a wall or floor of the building or room.

[0004] In the prior art, the usual procedure is for a lining unit to be assembled on site from a large number of individual elements, namely a floor section, several side sections, and connecting means that connect the floor section and the side sections. In particular, film strips are used here, which are glued or welded to the floor section or the side sections. This often results in more than ten individual elements that need to be connected to one another on site. Pre-formed corner formations that are connected to the floor section or the side sections are also known. When the lining unit is assembled, this results in a preferably complete, one-piece lining of the room, in particular comprising a liquid-tight covering of a room floor.

[0005] Furthermore, preformed lining units are known, each of which can be inserted into an assembly room like a sealing tray. When installed, this results in not only a coverage of the assembly room floor but also a certain coverage of a side surface of the assembly room of a few centimeters. A circumferential sealing section extending beyond the side surface of the assembly room can also be formed, allowing the film layer of the lining unit to be integrated into a surrounding sealing plane, for example, in the area of ​​a shower cubicle door opening.

[0006] DE 10 2014 013 743 A1, for example, discloses a floor membrane that covers the entire floor area of ​​an assembly room and has raised edges along its edges. The floor membrane is prefabricated at the factory and can be installed as a single piece beneath a visible floor covering, for example, beneath a wet room. The raised edges of the floor section are glued or welded at their joints. Summary the invention

[0007] In view of the above-described state of the art, the object is to further improve a lining unit of the aforementioned type, in particular with regard to improved moisture protection and simplified assembly in different assembly spaces.

[0008] A possible solution is initially provided by a lining unit in which the floor part is formed in one piece with at least one side part, wherein the lining unit is prefabricated for lining a room such as a wet room, wherein a dimensioning of the floor part is given according to an area of ​​a floor of the room, and wherein a dimensioning of the respective side part is given according to an area of ​​a wall, optionally with an adaptation with regard to an opening, such as a door, of the room, wherein the side parts completely surround the floor part and the floor part and the side parts each have an inner and an outer surface, wherein furthermore the inner surfaces are formed with an adhesion structure for the attachment of tiles,wherein the side parts in a cross-section parallel to the floor form angles with one another with respect to their inner or outer surfaces or merge into one another in a rounded manner and have different heights, namely in any case a first and a second side part have a first height and a third and optionally further side parts, including in particular an opening side part, have a second height, wherein the first height corresponds to a multiple of the second height.

[0009] With regard to the first side panels, the lining unit is therefore particularly adapted to rooms in which moisture occurs not only in the floor area, but also in the area of ​​the side panels. This is the case, for example, in conventional shower cubicles or communal shower rooms, as is common in swimming pools. Such a room can also be an entire bathroom, guest toilet room, or other damp room. To prevent water hitting the side panels of a shower or bathroom, for example, from penetrating the wall of the room unprotected, it is common practice to tile them. This is usually done up to a height that is approximately 30 cm above the usual position of a shower head. However, tiles can also be installed across the entire height of a room, up to a ceiling.

[0010] The lining unit is adapted to its intended use and location so that it forms a base, particularly for those areas of the room that could potentially come into contact with water. In addition to the room floor and side walls, these can also include room dividers, such as those used in communal shower rooms, swimming pools, or even private bathrooms. Accordingly, the side parts of the lining unit are designed to be attached not only to the side walls of the room, but also to partition walls or intermediate elevations that rise from the floor, particularly parallel to the side walls, such as the aforementioned room dividers. The heights of the side parts of the lining unit can therefore vary considerably.The height of a side part can, for example, be a few millimetres, for example in the area of ​​a door opening or in the area of ​​entry and exit of a floor-level shower cubicle, up to a usual room height of 2.0 m, 2.1 m, 2.2 m, 2.3 m, 2.4 m or more, although intermediate values ​​of these heights are of course also conceivable.

[0011] Thus, a proposed lining unit is designed overall such that a first and a second side part have significantly different heights, namely a first height of a first side part corresponds to a multiple of a second height of a second side part. For example, with a first height of 2.20 m and a second height of 0.01 m, the first height corresponds to 220 times the second height. Multiples significantly higher or lower are also possible. If, according to another embodiment, for example, a second side part rests against a room divider and thus has a second height of 1.00 m, for a first height of a first side part of 2.20 m, this would result in a 2.2-fold ratio, or a ratio of the first height to the second height of "2.2 to 1."

[0012] The lining unit can be designed so that two adjacent side panels cover an outside corner or an inside corner of the room. Furthermore, a lining unit can also be designed to cover both an outside corner and an inside corner of the room. The shape of the lining unit, particularly its base section, depends on the specific conditions of the respective room. In particular, the lining unit can also be standardized for specific rooms, for example, bathrooms in ship cabins, guest toilets, or similar.

[0013] Depending on the spatial conditions of the room or a corner in which water in particular hits the side surfaces, two or even three first side parts can be connected to each other, which form, for example, a corner area of ​​a shower or a toilet room.

[0014] The lining unit is installed in the room in such a way that, for example, tile adhesive is first applied to the floor of the room and the side surfaces of the room, at least in the area where the floor section and the side sections of the lining unit are later to be attached. The lining unit is then inserted into the room in a shape-corresponding manner, and tile adhesive, for example, is applied to the surfaces facing inward, into the lining unit, in order to then attach tiles to them.

[0015] The lining unit can also be installed using a sealed adhesive or a polymer-based adhesive. Furthermore, the lining unit can be self-adhesive for installation in the room.

[0016] The film itself is made of a moisture-proof material containing thermoplastic components. Polyethylene film, for example, can be used here. The film is preferably manufactured so that the base part merges seamlessly into the respective side part, and the adjacent side parts are connected to each other via side seams formed by gluing or welding.

[0017] The lining unit can be a single piece before assembly work begins. To simplify assembly on comparatively very large areas, the lining unit can also be in two or more parts, but in a number of individual elements, which further allow simplified assembly. Thus, preferably no more than seven, eight or nine individual elements are components of the lining unit, whereby a single element can optionally have several side parts or optionally a base part with one side part or further optionally just one side part. Typically, the lining unit or the elements of the lining unit do not yet have any openings through which, for example, pipes or fittings can be passed. In this respect, the lining unit is still free of openings in its initial state.However, it can also be provided that prefabricated openings for pipes or other connecting pieces are already formed in the base part and / or one or more side parts. During production of the lining unit, the specific conditions of the room are therefore already taken into account, for example on the basis of a data set. To create, for example, a passage in the base part or one of the side parts, a cut is made in the film forming the lining unit at the intended location, with the cut being smaller than the diameter of the pipe to be passed through later, for example. The lining unit is then pulled over the pipe during assembly, in particular with elastic expansion of the cut, so that a sealed connection is created directly through the film.

[0018] By designing the lining unit in multiple parts, it is also possible to achieve easier handling even with higher tolerances in the room to be lined. For example, a rectangular room could have a four-part lining unit (a single element with a floor section and a side section formed integrally with it, as well as three side sections as additional individual elements) that is inserted into the corners of the room. The tolerance in the corner areas is accommodated by an overlap between the individual elements.

[0019] The proposed design creates a film-based lining unit for lining a room that is easy to manufacture and handle. The lining unit is preferably formed in one piece with respect to both the floor section and at least one of the side sections and the sealing sections adjoining the side sections. Accordingly, due to the preformed film layer forming the lining unit, no or only minimal transitions, such as adhesive or welded transitions, are required separately at the installation site between the floor section and the side sections.

[0020] Even the sealing of an object passing through the base or a side panel, such as a pipe or a fitting, can be carried out in a simple manner using the proposed lining unit, as the flexible, resilient material of the film acts as a kind of sealing sleeve for contact with the object. To this end, the film on which the lining unit is based is severed in the area of ​​the passages to be made, creating an incision or recess in the film layer that is shorter (in the case of an incision) or smaller in diameter (in the case of a recess) than the outer diameter of the object to be passed through.Thus, when the object is passed through the opening in the film, the opening expands elastically, allowing the film material to conform to the outer surface of the object like a grommet, or at least like a lip toward the cutout. Accordingly, the film material of the lining unit surrounding the object passing through also serves as a grommet or sealing sleeve. No additional, specially designed grommets or sleeves are required, although—if desired—the floor section or side section can still be severed on-site during the lining of the room and installation of the preformed lining unit. This creates a universal, locally flexible arrangement with regard to the position of the object passing through.As explained, the required openings can either be created in advance by the manufacturer of the lining unit or can be made later by the fitter.

[0021] According to the previously proposed design, at least one or two side parts of the lining unit are designed to be significantly higher than at least a third or further side parts, which, for example, are not intended for attachment to a room-high side wall of the room, but rather merely rest against a relatively low edge of a floor recess in the area of, for example, an exit of a floor-to-ceiling shower tray or a door of the room. Such short side parts, referred to here as second side parts, have, for example, a second height of a few centimeters, for example, 1 to 10 cm. Furthermore, the short second side part can also optionally have an additional height of a further few centimeters to create a safety reserve beyond the edge.For example, the second side part can also be folded over to be placed over an edge of the floor recess and to form a sealed connection to a floor covering.

[0022] It is proposed here that the first height of the first side part is at least 10 times up to 50 times the second height of the second side part. If the second height of the second side part (short side part) is, for example, 4 cm, the first height of the first side part (high side part) can, for example, be up to 50 times the second height, for example 200 cm, so that almost or completely the entire wall height of the room is covered by the high side part of the lining unit, where it protects against moisture. Depending on the installation situation in the room, it may not even be necessary to cover the entire height of a room with the first side part of the lining unit. In this case, the first side part can, for example, only have a height of 50 cm to 100 cm, 50 cm to 150 cm, 25 cm to 50 cm or other height dimensions.It goes without saying that other heights are also possible within the aforementioned limits, in particular in centimeter increments, e.g. 30 cm, 31 cm, 32 cm, etc.

[0023] It is further proposed that the first height exceed half a measurement of the largest side length of the floor part. Preferably, the first height is at least approximately 1.50 m up to 2.50 m. The proposed first height of the first side part is particularly suitable for lining units that are to be installed in showers or entire shower rooms, namely where water directly hits a wall surface. The installation height of a shower head or the ceiling height can be taken into account here, with the first height of the first side part preferably corresponding to the upper edge of a tiling. In particular, this can result in a first height of approximately 1.50 m up to 2.50 m, although intermediate values ​​within these specified height limits are of course also conceivable.Regarding the ratio of the height of the first side panel to the side length of the floor panel, shower cubicles or relatively small bathrooms, such as ship cabins, may result in ratios that significantly exceed the specified aspect ratio of 1:2. For example, a ratio of 1:1 or higher may also result.

[0024] There may also be an additional height above a sanitary unit to be installed, such as a sink or toilet, above which no sealing to ceiling height is required. In this case, the height could be 20 cm above the sanitary unit to be installed, for example.

[0025] In addition, a further height level can be provided by connecting a bathroom window or by sealing a shower niche, for example as a storage space for shower utensils.

[0026] According to a further inventive concept, a lining unit is provided in which the side seam formed between two adjacent side parts is formed by two superimposed edge regions of the adjacent side parts, one of the edge regions being folded so that the side seam has a three-layer structure. The lining unit can furthermore have the features of the previously proposed embodiment, but can also be provided independently of a specific side dimension of the side part.

[0027] The proposed three-layer side seam formed between adjacent side panels ensures particular stability of the lining unit, particularly in the corner areas, and also improves moisture protection. The three-layer side seam can be provided between adjacent first side panels, between adjacent second side panels, or between a first side panel and a second side panel. When producing the side seam, the edge regions of the two adjacent side panels are first placed on top of one another in the same direction so that the free edges of the edge regions point in the same direction. One side panel is then folded over in the direction away from the adjacent side panel to achieve the proposed three-layer design.The edge areas of the adjacent side panel can have a width of several millimeters to a few centimeters in the folding direction. Overlapping them in a range of 5 mm to 15 mm is particularly recommended. The width refers to the direction corresponding to the circumferential direction of the base panel or the entire lining unit.

[0028] It is recommended to first join the overlapped edge sections of the adjacent side panels together, for example, by gluing or welding, and then fold one of the edge sections so that the overlapped edge sections of the adjacent side panels rest against one of the side panels. The overlapped, already joined edge sections can then be joined to the side panel, again, particularly by gluing or welding.

[0029] In the aforementioned embodiment, it may be particularly recommended that the side seam, viewed from outside the lining unit, has a depression with depression edges. The side seam can have either a single depression or a plurality of depressions arranged one after the other in the longitudinal direction of the side seam, which depressions extend in the direction of the erected side seam of the side part with respect to their longitudinal extent. The depression can be created by placing a pressing element and / or heating element, in particular a rod-shaped one, onto the side seam during the production of the side seam, in particular during the gluing or welding process. The depression is then introduced into the side seam by pressure and / or heat, which makes it visibly and / or tangibly different from the remaining material of the side seam and also of the side part.This creates recessed edges around the recess, which, when viewed from outside the lining unit, are visibly or noticeably distinct from the remaining material of the side seam or side panel. The recess, including the recessed edges, ensures exceptional stability of the side seam and thus of the entire lining unit. Furthermore, this also improves moisture protection in the area of ​​the side seam.

[0030] According to a further embodiment of the lining unit, which can be relevant both in conjunction with the aforementioned embodiments and independently thereof, it is proposed that the lining unit comprise an insert part in a transition region between the base part and at least one side part, wherein the insert part forms a partial region of the base part and a partial region of the at least one side part. The proposed insert part can be provided, in particular, for forming an outer corner or inner corner of the lining unit.

[0031] The insert can also include one or more complete side panels, rather than just one or more sections of these. It is important that the base panel does not seamlessly transition into the adjacent side panel in the area of ​​the insert, but rather initially borders the insert, which then provides a seamless transition into the side panel.

[0032] To form an outside corner or an inside corner, the insert part can in particular have a substantially L-shaped extension, wherein the angled legs of the L-shape can each be placed against a side wall of the room. The adjacent side parts of the insert part can in particular be designed to merge seamlessly into one another, if necessary in one piece, so that no seam is created at the corner of the lining unit formed thereby. This creates an absolutely tight seal in the corner area of ​​the lining unit. The side seams on the adjacent side parts of the lining unit can then be formed away from the corner area, namely where the insert part merges into the adjacent side part.

[0033] It is proposed that the portion of the base part formed by the insert be connected to an adjacent portion of the base part via a base seam. According to this design, the base seam between the insert and the base part is thus not located in a corner area of ​​the lining unit, but rather in the area of ​​the base part, where the mechanical stress on the lining unit is lower than in a corner area.

[0034] The lining unit can also be designed in such a way that recesses are formed in the corner areas between the floor section and two adjacent side sections. These recesses are glued on site after the lining unit has been installed in the room using specially shaped inserts, such as internal or external corners. Sealing in the recess area can only be achieved with the adhesive bonding of the insert.

[0035] Furthermore, to bridge tolerances, the edge region of the lining unit can be made of a material that can be plastically deformed. For example, an edge strip made of an expandable and technically dense, but non-recoverable material can be provided. For example, a strip of butyl rubber can be provided for this purpose, or an area with expansion reserves that can be provided with a recovery hindrance, for example in the form of an insert (e.g., a wire). The insert is accordingly preferably plastically deformable with no or no significant recovery properties. This allows the lining unit to be stretched into the corner areas of the room during installation to compensate for tolerances and to be glued there, preferably without tension.

[0036] The bottom seam can be formed in several parts; in particular, the insert part can have several bottom seams that are oriented transversely to one another. For example, a first bottom seam can be formed parallel to an adjacent side part of the lining unit, while a second bottom seam is at a 90-degree angle to it and runs parallel to an adjacent side wall of the lining unit. Furthermore, the bottom seam or the bottom seams can run transversely to side seams that connect adjacent side parts of the lining unit or partial regions of the side parts to one another. In particular, an intersection point between the bottom seam and the side seam is formed far from a corner of the lining unit, so that neither the bottom seam nor the side seam are located at the corner of the lining unit.

[0037] The bottom seam can be formed by two superimposed edge regions of the adjacent sub-regions of the bottom part. In a particularly simple case, this results in a two-layer bottom seam because the edge regions do not abut one another with their edge edges, but rather overlap to a certain extent. The overlap can preferably be several millimeters up to a few centimeters. In particular, the overlap exists with respect to a direction transverse to the longitudinal extent of the edge edges over a width of 5 mm to 15 mm. In principle, it can also be provided to form the bottom seam with three layers, in particular as described above with regard to the three-layer side seam between adjacent side parts.

[0038] All of the design variants of a lining unit proposed here can provide for the film of the lining unit to be made of polyethylene (PE). Polyethylene is excellently suited for extruding into a film and offers outstanding flexibility, allowing for seamless transitions between the base and side panels of the lining unit, and possibly also between adjacent side panels of the lining unit. Furthermore, polyethylene is impermeable to liquids and mechanically stable, ensuring that the lining unit can withstand mechanical stress during assembly. In addition to polyethylene, the film can also be made of other materials or material blends. For example, it could also be made of polypropylene (PP) or polyethylene terephthalate (PET).

[0039] The film is preferably laminated with a fleece. The lamination is preferably present on both sides, i.e., on both an outer surface of the lining unit and an inner surface thereof. The lamination can preferably comprise a polypropylene fleece. The lamination serves, on the one hand, to attach the lining unit to a floor or wall of the room, and, on the other hand, to attach tiles, for example, to the lining unit itself. The lamination, for example in the form of a fleece, is ideally suited, for example, to absorb tile adhesive and then to secure it to the structure or to be covered with tiles.

[0040] In this regard, material combinations such as a thermoplastic elastomer (TPE) or an ethylene-vinyl acetate copolymer (EVA) are also possible, possibly in combination with polyester fleece. Different materials can also be used to seal pipe penetrations and the surface, for example. Instead of a fleece, an alternative coating with a material is also possible to ensure the adhesion of the adhesive.

[0041] To prevent infiltration through the capillary effect of the fleece, capillary barriers can also be installed in the area of ​​the fleece.

[0042] The formation of the film from polyethylene and its lamination, in particular on both sides, is not only important for the previously proposed embodiments of lining units, but also for lining units in a more general sense which do not have the previously described characteristic features of the height ratio of the side parts, the three-layered nature of a side seam or the formation of an insert part between the base part and at least one side part.

[0043] Furthermore, both the side seam and the bottom seam can be welded, which can be used to create a side seam formed between adjacent side parts and / or a bottom seam connecting the insert part to the adjacent portion of the bottom part. In particular, the side seam or bottom seam can be created by ultrasonic welding. Other welding methods can also be used. As an alternative to welding, the side parts and / or the insert part can also be integrated into the lining unit by means of adhesive bonding.

[0044] A further embodiment provides that the side seam, viewed from outside the lining unit, has a depression with depression edge edges. This proposed design of the side seam is important both in relation to the aforementioned embodiments of a lining unit and independently thereof. The design of the depression with depression edge edges serves to particularly rigidify the side seam and increase the tightness of the interface between the adjacent side parts. The depression can be created by applying pressure and / or heat to the side seam, resulting in tangible and / or visible depression edge edges. The side seam can either have just a single, elongated depression along the side edge of the lining unit or a plurality of depressions arranged one behind the other in the longitudinal direction.

[0045] In addition, the base section of the lining unit can be provided with a prefabricated rectangular, or in particular square, basic shape with a base area of ​​80 cm by 80 cm or 90 cm by 90 cm. Such basic shapes are particularly common for shower trays. Furthermore, the base section can also have a prefabricated basic shape of 5 ft x 8 ft, which corresponds to a standard size for guest bathrooms in the USA. In this sense, the lining units can be prefabricated in terms of the size of the base section in such a way that they are easily suitable for a variety of applications. In addition to the aforementioned shapes and dimensions, other shapes and dimensions can of course also be specified for the design of the lining unit.

[0046] Alternatively, the base part can also have a recess into which a factory-sealed shower tray can be inserted.

[0047] The lining unit is particularly suitable for use in wet rooms. However, a lining unit that is easy to handle and install is also advantageous in rooms where sheet-like technical products, such as impact sound insulation or decoupling membranes, are typically installed on the floor.

[0048] Overall, the design of the lining unit according to the invention results in a simplification of installation, with increased safety, particularly with regard to tightness, whereby tolerances in the existing space can be compensated for in an advantageous manner.

[0049] The ranges or value ranges or multiple ranges specified above and below also include all intermediate values ​​with regard to the disclosure, in particular in 1 / 10th increments of the respective dimension, possibly also dimensionless. For example, a specification such as 0.1 to 0.5 times also includes the disclosure of 0.2 to 0.5 times, 0.4 to 0.5 times, 0.3 to 0.4 times, etc. The disclosure can serve, on the one hand, to delimit a specified range limit from below and / or above, but alternatively or additionally, also to disclose one or more singular values ​​from a respectively specified range. Short Description of the drawings

[0050] The invention is explained below with reference to the accompanying drawings, which, however, represent only exemplary embodiments. A part that is explained only with reference to one of the exemplary embodiments and is not replaced by another part in a further embodiment due to the special features highlighted therein is thus also described for this further embodiment as a possible part present at any rate. The drawings show: Fig. 1 shows a perspective view of a lining unit; Fig. 2 shows a room bordered on two sides by room walls with a mounted lining unit and tiles applied to the lining unit; Fig. 3 shows the room with the lining unit along the line III in Figure 2 ; Fig. 4 a corner of the lining unit during a first manufacturing step; Fig. 5 the corner according to Figure 4 during a later manufacturing step; Fig. 6 a detailed view of the Figure 5shown circular portion during a later manufacturing step; Fig. 7 shows the Figure 6 shown part during a later manufacturing step; Fig. 8 the Figure 7 shown partial area during a later manufacturing step; Fig. 9 a view from the outside of the lining unit from the direction IX according to Figure 8 ; Fig. 10 a partial area of ​​a lining unit with an insert part for forming a corner; Fig. 11 a detailed view of the partial area according to the line XI in Figure 10 ; Fig. 12 shows a perspective view of a room according to a further embodiment; Fig. 13 shows the Figure 12shown room with a lining unit for sealing the room; Fig. 14 the room and the lining unit installed therein; Fig. 15 a perspective view of a lining unit in a further embodiment with an insert for forming an inside corner; Fig. 16 a further embodiment of the lining unit in perspective view; Fig. 17 the schematically shown section through the area XVII in Figure 16 ; Fig. 18 a sectional view according to Figure 17 , relating to a further embodiment; Fig. 19 a perspective view of a lining unit in a further embodiment; Fig. 20 the section along the line XX - XX in Figure 19 . Description of the embodiments

[0051] Shown and described is, firstly, with reference to the Figures 1 and 2, a lining unit 1 for lining a room 2, which is an entire room or a part of a room in a building, here, for example, a bathroom. The lining unit 1 is formed and preformed by the manufacturer from a film 3 with thermoplastic components, here, for example, polyethylene.

[0052] The lining unit 1 here comprises, for example, a floor part 4, two first side parts 5, 6, which here only by way of example extend up to an upper tile edge 30 of a tiling, and two second side parts 7, 8 opposite the first side parts 5, 6. The second side parts 7, 8 are significantly shorter than the first side parts 7, 8 and extend only up to or just above a floor level 27 of the room, here, for example, the bathroom, on which tiles 32 are attached.

[0053] Room 2 here, for example, has a box-like depression 25 in the floor of the building. Furthermore, as shown here, room 2 can have a room floor 26, preferably resulting from a subfloor of the building, which extends vertically downwards relative to the floor level 27 of the room covered with tiles 32. From the room floor 26 to a room ceiling 31, room 2 has a room height c.

[0054] As shown, the room 2 can be square with respect to a floor plan, for example with dimensions of 80 cm by 80 cm or 90 cm by 90 cm, or for example elongated rectangular with dimensions of 80 cm by 120 cm or 5 ft by 8 ft, for example, wherein starting from the room floor 26, room side walls 28 are formed in an orthogonal orientation to this, which delimit the room 2 in the circumferential direction. Here, the floor plan is square, for example, with side lengths d of 90 cm.

[0055] In a conventional rectangular design of the room 2, four room side walls 28 are thus obtained, wherein two room side walls 28 which follow one another in the circumferential direction can essentially enclose a 90-degree angle to one another with respect to a floor plan.

[0056] If room 2 is formed in a corner area of ​​a building, two of the room side walls 28 can be formed directly by the building walls that border room 2. The other room side walls 28 open into the floor level 27 of the room, for example, to allow access to a shower cubicle or the like.

[0057] In the case of showers arranged in niches, for example, three circumferentially successive room side walls 28 can be formed directly by room walls of the building, while a fourth room side wall 28 opens freely into the floor level 27 as access to the shower.

[0058] The room 2, regardless of the concrete arrangement and design described above, usually serves to accommodate a tub, in particular for example a shower tray, for the further preferred design in particular for example a so-called floor-level shower.

[0059] Typically, a free end of a pipe 29, in particular a wastewater drain pipe, extends into the room 2. The pipe 29 can, as is also preferred, be arranged lying on the room floor 26. A pipe opening, in particular facing upwards, is aligned and positioned accordingly for connection to a drain opening provided in the tub.

[0060] The side parts 5, 6, 7, 8 of the lining unit 1 have - as previously mentioned - different heights a, b. Here, the second side parts 7, 8, for example, have a second height b of approximately 5 cm, while the first side parts 5, 6, which cover a wall of the illustrated shower up to the upper tile edge 30, have, for example, a first height a of 200 cm. The long side parts 5, 6 of the lining unit 1 are thus approximately 40 times as high as the short side parts 7, 8. The height of the first side parts 7, 8 also corresponds to the height of the tile surface, which usually ends approximately 30 cm above the position of a shower head or extends completely below the ceiling 31.

[0061] The lining unit 1 is already prefabricated by the manufacturer to the standard size of the floor of the room 2 of, for example, 90 cm x 90 cm and - for example on the basis of a data set transmitted by the end customer or fitter - equipped with a floor part 4 and side parts 5, 6, 7, 8 of the required heights a, b and side lengths d.

[0062] The base part 4 of the lining unit 1 has four corners 9, each with an angle of, for example, 90 degrees. Accordingly, there are also corners with angles of 90 degrees between the adjacent side parts 5, 6, 7, and 8 of the lining unit 1.

[0063] As particularly in the Figures 3 to 9As shown, a side seam 10 is formed between adjacent side parts 5, 6, 7, 8, consisting of overlapping edge regions 11, 12 of the side parts 5, 6, 7, 8. In contrast, a transition between the base part 4 and each of the side parts 5, 6, 7, 8 is seamless, for example. This is achieved by folding the film 3 in a transition region 13 between the base part 4 and the adjacent side part 5, 6, 7, 8.

[0064] Figure 3shows a corner 9 of the lining unit 1, prefabricated by the manufacturer, in a finished assembly state of the lining unit 1 in the room 2. The film 3 of the lining unit 1 has an adhesion structure 35 on both sides, namely here, for example, a lamination made of a fleece 22. The fleece 22 can, for example, consist of a polypropylene fleece or at least have portions thereof. Due to the adhesion structure 35, the film 3 can, for example, be particularly easily covered with a tile adhesive 33, which on the one hand fixes the lining unit 1 to a room side wall 28 and on the other hand holds tiles 32 to the lining unit 1, which later form the tiled surface of the shower shown. In the corner 9, a sealing element 34, for example a silicone joint, is arranged between the tiles 32 in the usual way.

[0065] As shown in the detailed illustration of the Figure 3shown, the side seam 10 of the lining unit 1 has a superposition of the according to e.g. Figure 4 opposite edge areas 11, 12 of the adjacent side parts 5, 6. The edge areas 11, 12 each lie with their inner side, ie the side facing the tiles, against each other and overlap, for example, over a width of approximately 10 mm. However, shorter or longer overlaps are of course also possible. Then the edge areas 11, 12 - as in the sequence of Figures 6 to 8As shown, the two foils are initially fixed to one another, for example, by gluing or welding. Here, the joining is achieved, for example, by ultrasonic welding. Ultrasonic welding is particularly suitable for welding thermoplastics such as PE. With the aid of so-called sonotrodes, for example, ultrasonic vibrations are introduced into the edge regions 11, 12 to be joined, whereby the resulting frictional heat then causes the material of the film 3 to melt. If necessary, the edge regions 11, 12 can then be joined under additional pressure.

[0066] Subsequently, the glued or welded edge regions 11, 12 are folded together to form one of the two side parts 5, 6 of the lining unit 1, here the side part 6, until the edge region 12 of the side part 6 rests against the adjacent part of the same side part 6 from the outside (see Figures 7 and 8). As a result, the edge region 12 of the side part 6 is folded in on itself and the side seam 10 has a three-layer structure, which here results in detail from one layer of the side part 5 (edge ​​region 11) and two layers of the side part 6 (edge ​​region 12 and the part of the side part 6 adjoining the edge region 12).

[0067] Finally, the three-layer side seam 10 is made according to Figure 8glued or welded again, so that the superimposed edge regions 11, 12 are fixed to the outer side of the side part 6. The outer side refers to the side of the film 3 that faces the room side wall 28. As an alternative to the described procedure with the successive work steps of welding and folding, the superimposed edge regions 11, 12 can also be folded over first and only then welded, in particular both welding the edge regions 11, 12 to one another and welding the edge regions 11, 12 to the outer side of the side surface 6.

[0068] The welding process carried out here, for example, results in - as in Figure 9shown - viewed from outside the lining unit 1 (i.e. from the direction of the room side wall 28) is a welded side seam 10 with a tangible and visible depression 23 and depression edges 24 surrounding the depression. The depression 23 is created by the application of pressure and heat during the welding process. Depending on the size of the partial area of ​​the side seam 10 subjected to pressure during the same welding process, a more or less large depression 23 is created. It is recommended that the depression 23 corresponds approximately to the width of the side seam 10. Accordingly, the depression 23 can, for example, have a width measured transversely to the longitudinal extent of the side seam 10 of several millimeters, preferably a width between 5 mm and 15 mm. Along its longitudinal extent, the side seam 10 can furthermore have either a single depression 23 or a plurality of depressions 23 following one another in the longitudinal extent.The at least one recess 23, surrounded by its recess edges 24, offers improved mechanical stability of the side seam 10 and thus also of the entire lining unit 1.

[0069] The Figures 10 and 11show an embodiment of a lining unit 1 with an insert part 14 for forming a corner, here an outer corner 15 of the lining unit 1. The insert part 14 essentially has two partial regions 16, 17, namely one region forming a partial region 16 of the base part 4 and one region forming a partial region 17 of the adjacent side part 5, 6. The partial region 16 is connected to an adjacent partial region 19 of the base part 4 via a base seam 18. The base seam 18 between the insert part 14 and the base part 4 is thus not positioned in a corner region of the lining unit 1, but rather on the base part 4, where the mechanical stress on the lining unit 1 is lower than in a corner region.

[0070] There is preferably a seamless transition between the partial areas 16 and 17 of the insert part 14 by simply folding over the film material of the lining unit 1.

[0071] To form the bottom seam 18, adjacent edge regions 20, 21 of the partial regions 16, 19 of the bottom part 4 are superimposed and connected to one another. The connection can be created, in particular, by gluing or welding.

[0072] Although not shown here, the insert part 14 can in principle also provide one or more complete side parts 5, 6, 7, 8 of the lining unit 1, rather than just one or more partial areas thereof. In this case, too, the base part 4 in the area of ​​the insert part does not seamlessly transition into the adjacent side part 5, 6, 7, 8, but initially borders the insert part 14, which then provides a seamless transition into the side part 5, 6, 7, 8.

[0073] To form the outer corner, the insert part 14 has a substantially L-shaped extension, wherein the mutually angled legs of the L-shape can each be applied to a room side wall 28 of the room 2 as part of the side part 5, 6 of the insert part 14. The adjacent side parts 5, 6 of the insert part 14 merge seamlessly into one another, namely in one piece, so that no seam is created at the corner 9 of the lining unit 1 formed thereby.

[0074] Side seams 10, however, are formed on the side parts 5, 6 of the lining unit 1 away from the corner 9, namely where the insert part 14 merges into the adjacent side part 5, 6.

[0075] The bottom seam 18 is, for example, formed in several parts, or the bottom part 4 here has several bottom seams 18 that are oriented transversely to one another. A first bottom seam 18 is formed parallel to the adjacent side part 5 of the lining unit 1, while a second bottom seam 18 is formed at a 90-degree angle thereto and runs parallel to the adjacent side part 6 of the lining unit 1. Furthermore, the bottom seams 18 run transversely to the side seams 10, which connect the adjacent partial surfaces of the side parts 5, 6 to one another. A respective intersection point S between the bottom seam 18 and the side seam 10 is formed remote from the respective corner 9 of the lining unit 1, so that neither the bottom seam 18 nor the side seam 10 lie at the corner 9 of the lining unit 1.

[0076] The Figures 12 to 14show a second of many other possible embodiments of a lining unit 1 for the liquid-tight design of a room 2. The room 2 shown is a complete room 2 of a building, for example a bathroom. The room 2 here has, for example, a room floor 26 and several room side walls 28. One room side wall 28 has a window 37. A door opening 36 is provided in another room side wall 28. The arrangement, shape and special design of the room side walls 28 with window 37 and door opening 36 are to be understood here only as examples. At least one room side wall 28 can also have - as shown here as an example - several wall sub-regions that extend in different surface planes, whereby the room 2 can, for example, assume a floor plan that deviates from a square or rectangle.The angles between adjacent room side walls 28 or between adjacent wall sections of the same room side wall 28 are, for example, 90 degrees each, but other angles are also possible.

[0077] On the floor 26 of room 2, the Figure 13 shown one-piece lining unit 1 - usually a floor covering, e.g. tiles, is applied, which then defines the floor level of the room 2 and preferably also the floor level of the door opening 36.

[0078] Before the Figure 13 purely schematic and exemplary assembly of the lining unit 1 in the room 2, a bonding agent, for example a tile adhesive 33 (see for example Figure 3) is applied to the room floor 26 and the room side walls 28. For better adhesion, the film 3 of the lining unit 1 can, for example, have an adhesion structure 35, such as a fleece 22, particularly on both sides. The lining unit 1 can then be inserted into the room 2 in one piece.

[0079] The lining unit 1 has, according to the Figures 13 and 14 For example, an asymmetrically shaped base part 4 is shown. The base part 4 has, for example, five corners 9 with a 90-degree angle and one outer corner 15 with an obtuse angle of 270 degrees.

[0080] Two adjacent side parts 6', 6" are connected to each other via the outer corner 15. This can preferably be done via an insert part 14 of the base part 4, as already described with reference to the Figures 10 and 11 was described.

[0081] In addition to the side parts 6', 6", the lining unit 1 has further side parts 5, 6, 7, 7', 7", 8. These side parts 5, 6, 7, 7', 7", 8 are connected to their respective adjacent side parts 5, 6, 6', 6", 7, 7", 8 via a 90 degree corner 9. The corners 9 preferably each have a side seam 10 (see, for example, the side seam 10 according to Figure 3 ).

[0082] The side parts 7 and 7" are connected to the side part 7' located between them, for example, not via a corner 9 or outer corner 15, but in a straight line. The middle side part 7' is assigned to the area of ​​the door opening 36 of room 2 and can, for example, be designed as an opening side part with a low height of a few millimeters to a few centimeters in order to seal a height difference between the room floor 26 of room 2 and a room floor of a neighboring room adjoining room 2 via the door opening 36.

[0083] The side parts 5, 6, 6', 6", 7 and 7" are here, for example, of the same height, for example with a first height a, which corresponds to the height of the room 2 or its side walls 28.

[0084] The side part 8 is designed here, for example, such that it has a recess for the window 37 of the room 2. The position and shape of the recess correspond to the position and shape of the window 37, with the side part 8 here, for example, adjoining the peripheral contour of the window 37 from two sides. The portion of the side part 8 of the lining unit 1 located between the window 37 and the floor part 4 has a second height b, which is less than the first height a of the room-high side parts 5, 6, 6', 6", 7 and 7" of the lining unit 1. Here, the first height a is, for example, 2.40 meters and the second height b is, for example, 0.90 meters. Other ratios between the heights a, b are also possible.

[0085] Figure 14 shows the room 2 with the lining unit 1 fully assembled therein. In this state, the lining unit 1 can again be coated with an adhesion promoter, for example tile adhesive 33, on its side parts 5, 6, 6', 6", 7, 7', 7", 8 facing into the room 2, in order to then lay a floor or wall covering, in particular tiles, thereon. To support optimal adhesion, the lining unit 1 can preferably also have a lamination made of a fleece 22 on the side facing into the room 2.

[0086] The Figure 15shows a further embodiment of a lining unit 1 with an insert part 14 for forming a corner, here an inner corner 38, of the lining unit 1. The insert part 14 is designed to sealingly cover a recess 39 provided in the corner resulting in the lining unit 1 at the transition from two side parts 5 and 6 to the base part 4. In this embodiment, the insert part 14 also essentially has two partial regions 16, 17, namely a region forming a partial region 16 of the base part 4 and a region forming a partial region 17 of the adjacent side part 5, 6. The partial region 16 is connected to an adjacent partial region 19 of the base part 4 via a base seam 18. There is preferably a seamless transition between the partial regions 16 and 17 of the insert part 14 by simply folding over the film material of the lining unit 1.

[0087] The insert part 14 can be part of the lining unit 1.

[0088] Also, according to the illustration in Figure 16 In corner 9, between two side panels 5 and 6, a section 40 is provided, which allows for plastic deformation of the corner area to adapt and seal to the conditions of the room area to be lined (for example, the transition between two adjacent room side walls 28). Tolerances, particularly in the area of ​​such a room corner, can thus be compensated for while maintaining the required technical tightness.

[0089] According to the schematic representation in Figure 17 To form the plastically deformable section 40 between a side part 5 and an adjoining side part 6, a strip 43 made of bitumen or butyl rubber or a bitumen-based material can be provided, for example, extending over the entire height of the side parts 5, 6.

[0090] For example, the plastically deformable strip 43 can be accommodated in a foil pocket 41 formed between the side parts 5 and 6, as further described, for example, in Figure 18 is shown schematically.

[0091] Such a foil bag 41 can also be used, as further Figure 18 As can be seen, they have an expansion reserve, for example in the form of a corrugation of the film pocket walls 42 viewed in a horizontal cross-section.

[0092] Due to the plastically formed section 40, the lining unit 1 can be adapted to the conditions on site during installation, in particular at the corner areas between room side walls 28, by manually applying pressure to section 40, this material section being pressed into the corner area, if necessary while stretching (arrows p), thus achieving a non-recoverable, preferably full-surface and technically tight connection between the lining unit 1 and the room side walls 28.

[0093] The Figures 19 and 20show an embodiment in which a plastically deformable section 40 is provided along an upper edge 44 of two adjacent side parts 5 and 6 and also spans the corner region between the side parts 5 and 6. A strip 43 of the type described above, for example a butyl rubber strip, can be accommodated in a film pocket 41 adjoining the film 3, which film pocket 41 can be provided with a fleece 22 on one or both sides.

[0094] Also due to such a plastically deformable edge design, a flat, technically tight installation of the lining unit 1 on the facing surfaces, here the room side walls 28, can be achieved. List of reference symbols

[0095] 1 lining unit 24 recess edge 2 Space 25 depression 3 film 26 Room floor 4 Bottom part 27 Ground level 5 side panel 28 Room side wall 6 side panel 29 Pipe 6' side panel 30 tile edge 6" side panel 31 Ceiling 7 side panel 32 tile 7' side panel 33 tile adhesive 7" side panel 34 Sealing element 8 side panel 35 Arrest structure 9 Corner 36 Door opening 10 side seam 37 Window 11 peripheral area 38 inside corner 12 peripheral area 39 recess 13 Transition area 40 Section 14 Insert part 41 foil bag 15 outside corner 42 Foil bag wall 16 Sub-area 43 stripes 17 Sub-area 44 edge 18 bottom seam S Intersection 19 Sub-area a Height 20 peripheral area b Height 21 peripheral area c Room height 22 fleece d Side length 23 Deepening p Arrow

Claims

1. Lining unit (1) with a floor part (4) and side parts (5, 6, 7, 8) associated with the floor part (4), wherein the floor part (4) and the side parts (5, 6, 7, 8) are formed from a waterproof film and wherein the floor part (4) is formed in one piece with at least one side part (5, 6, 7, 8), wherein furthermore the lining unit (1) is prefabricated for lining a room (2) such as a wet room, wherein a dimensioning of the floor part (4) is given according to an area of ​​a floor of the room (2), and wherein a dimensioning of the respective side part (5, 6, 7, 8) is given according to an area of ​​a wall, optionally with an adaptation with regard to an opening, such as a door, of the room (2), wherein the side parts (5, 6, 7, 8) completely surround the floor part (4) and the floor part (4) and the side parts (5, 6, 7, 8) each have an inner and an outer surface,wherein the inner surfaces are further formed with an adhesion structure (35) for attaching tiles (32), wherein the side parts (5, 6, 7, 8) in a cross-section parallel to the floor enclose an angle with each other with respect to their inner surfaces or outer surfaces or merge into each other in a rounded manner and have different heights (a, b), namely in any case a first and a second side part (5, 6, 7, 8) have a first height (a) and a third and optionally further side parts (5, 6, 7, 8), including in particular an opening side part (5, 6, 7, 8), have a second height (b), wherein the first height (a) corresponds to a multiple of the second height (b).

2. Lining unit (1) according to claim 1, characterized in that the first height (a) exceeds half a measurement of a largest side length (d) of the base part (4), wherein the first height (a) is preferably at least approximately 1.50 m up to 2.50 m.

3. Lining unit (1), in particular lining unit (1) according to the preamble of claim 1 or according to one of the preceding claims, for the form-corresponding lining of a room (2), in particular in a wet area, comprising a film (3) made of a thermoplastic material, wherein the lining unit (1) has, in relation to a state mounted in the room (2), a base part (4) and side parts (5, 6, 7, 8) extending orthogonally to the base part (4), wherein the base part merges seamlessly into the respective side part (5, 6, 7, 8) and wherein adjacent side parts (5, 6, 7, 8), in particular in the region of a corner (9) of the base part (4), are connected to one another via a side seam (10), characterized in that the side seam (10) is formed by two superimposed edge regions (11, 12) of the adjacent side parts (5, 6, 7, 8), wherein one of the edge regions (11, 12) is folded so that the side seam (10) has a three-layer structure.

4. Lining unit (1), in particular lining unit (1) according to the preamble of claim 1 or according to one of the preceding claims, for the shape-corresponding lining of a room (2), in particular in a wet area, comprising a film (3) made of a thermoplastic material, wherein the lining unit (1), in relation to a state mounted in the room (2), has a base part (4) and side parts (5, 6, 7, 8) extending orthogonally to the base part (4), wherein the base part merges seamlessly into the respective side part (5, 6, 7, 8) and wherein adjacent side parts (5, 6, 7, 8), in particular in the region of a corner (9) of the base part (4), are connected to one another via a side seam (10), characterized in thatthe lining unit (1) has an insert part (14), in particular for forming an outer corner (15), in a transition region (13) between the base part (4) and at least one side part (5, 6, 7, 8), wherein the insert part (14) forms a partial region (16) of the base part (4) and a partial region (17) of the at least one side part (5, 6, 7, 8).

5. Lining unit (1) according to claim 4, characterized in that the partial area (16) of the base part (4) formed by the insert part (14) is connected to an adjacent partial area (19) of the base part (4) via a base seam (18).

6. Lining unit (1) according to claim 5, characterized in that the bottom seam (18) is formed by two superimposed edge regions (20, 21) of the adjacent partial regions (16, 19) of the bottom part (4).

7. Lining unit (1) according to one of the preceding claims, characterized in that the film (3) is made of polyethylene.

8. Lining unit (1) according to one of the preceding claims, characterized in that the film (3), in particular on both sides, is laminated with a nonwoven fabric (22), particularly preferably with a polypropylene nonwoven fabric.

9. Lining unit, in particular lining unit (1) according to the preamble of claim 1 or according to one of claims 1 to 6, for the form-corresponding lining of a room (2), in particular in a wet area, comprising a film (3) made of a thermoplastic material, wherein the lining unit (1) has, in relation to a state mounted in the room (2), a base part (4) and side parts (5, 6, 7, 8) extending orthogonally to the base part (4), wherein the base part merges seamlessly into the respective side part (5, 6, 7, 8) and wherein adjacent side parts (5, 6, 7, 8), in particular in the region of a corner (9) of the base part (4), are connected to one another via a side seam (10), characterized in thatthe film (3) is made of polyethylene and is laminated, in particular on both sides, with a nonwoven fabric (22), particularly preferably with a polypropylene nonwoven fabric.

10. Lining unit (1) according to one of the preceding claims, characterized in that the side seam (10) formed between adjacent side parts (5, 6, 7, 8) and / or the bottom seam (18) connecting the insert part (14) to the adjacent partial area (19) of the bottom part (4) is welded, in particular is produced by ultrasonic welding.

11. Lining unit (1), in particular lining unit (1) according to the preamble of claim 1 or according to one of the preceding claims, for the shape-corresponding lining of a room (2), in particular in a wet area, comprising a film (3) made of a thermoplastic material, wherein the lining unit (1) has, in relation to a state mounted in the room (2), a base part (4) and side parts (5, 6, 7, 8) extending orthogonally to the base part (4), wherein the base part merges seamlessly into the respective side part (5, 6, 7, 8) and wherein adjacent side parts (5, 6, 7, 8), in particular in the region of a corner (9) of the base part (4), are connected to one another via a side seam (10), characterized in that the side seam (10) has a recess (23) with recess edges (24) when viewed from outside the lining unit (1).

12. Lining unit (1) according to one of the preceding claims, characterized in thatthe base part (4) has a prefabricated rectangular basic shape with a base area of ​​80 cm by 80 cm or 90 cm by 90 cm.

13. Lining unit (1), characterized by one or more of the characterizing features of any of the preceding claims.

Images