EP0731226A2 - Element for the assembly of a sanitary installation in front of a wall - Google Patents

Abstract

The frame of the wall section comprises hollow profiled vertical members (3) held apart by one more hollow profiled cross-struts (4) forming the corners. The member ends form close-fitting sockets for the bosses of corner connectors (8), which can be L-shaped with their arms at right angles. Stop faces can be provided on the bosses, against which the member endfaces fit closely. There can be fixing devices on the bosses engaging detachably with the members to prevent relative movement. The connectors can also accommodate hinging fixing lugs engaging in openings in C-section rails.

Description

The invention relates to a pre-wall installation element for sanitary installation with a frame made of at least two vertical struts essentially made of hollow profiles and at least one essentially made of hollow profiles, which keep the vertical struts at a distance from one another and form these corners of the frame. Such a pre-wall installation element is from, for example
DE 94 12 649 U 1 known.

Such pre-wall installation elements are often used in sanitary installations because they allow a very flexible arrangement of sanitary add-on elements. The pre-wall installation elements are usually erected at a certain distance in parallel in front of a building wall and the desired sanitary installations are attached to it. Gypsum fiber cement or plasterboard can be easily attached to the front of the pre-wall installation elements, which can then be tiled. In the prior art, pre-wall installation elements are provided with a frame that has correspondingly cut profiles that are welded together. These frames are then supplied in this form and can then be arranged accordingly by an installer. A disadvantage of such known pre-wall installation elements is in particular that the manufacturing costs are relatively high and the flexibility with regard to the areas of application leaves something to be desired.

Furthermore, it is known from DE 81 11 919 U1 for a framework made of rod-shaped elements to use plug connectors for joining the elements together.

It is therefore the object of the present invention to provide a generic pre-wall installation element for the sanitary installation, in which the Manufacturing costs are reduced and the flexibility regarding the possible uses is increased.

This object is achieved in that the end faces of the hollow profiles are formed as essentially precisely fitting plug receptacles for one plug-in attachment of a corner connector, each corner plug-in connection in each case forming a corner of the frame as an extension of the vertical and transverse struts to be connected and the respective plug-in attachments in the corresponding Intervene in the cabbage profiles offset from each other.

This inventive design of the pre-wall installation element makes it possible, in particular, to dispense with the very cost-intensive welding processes on the frame, which even exceed the additional part, the corner connector, in terms of cost. Furthermore, this design increases the accuracy of fit considerably compared to a welded construction, as a result of which series installation of the prewall installation elements according to the invention is far less problematic than previously in the prior art. In addition, the storage for the pre-wall installation elements is drastically reduced, since for certain frame sizes it is no longer necessary to store the entire frame, but only the associated vertical or transverse struts. This allows a more flexible production of the elements, e.g. a narrower element for the disabled can be easily integrated into the current manufacturing process simply by inserting a shorter cross strut. For this purpose, separate shapes for welding alignment do not have to be made, as is the case with a welded construction.

In a preferred embodiment, the corner plug connector is L-shaped, and the two plug inserts form the L-legs which are essentially offset by 90 ° to one another. This preferred shape of the frame also offers the possibility that the vertical or transverse struts can be produced by simply cutting rod material at right angles.

In order to further improve the dimensional accuracy of the frame in the simplest way, stop surfaces can be arranged on the corner connector at the fixed end of the plug-in lugs, against which the end faces of the struts are essentially in register. The dimensional accuracy is then automatically given by plugging together.

So that an unintentional loosening and an associated adverse influence on the dimensional accuracy is completely ruled out, the plug inserts can also be detachably fastened to the struts by means of which displacement along the plugging direction can be prevented.

Another great advantage of the corner connector is that a fastening point for a fastening bracket for wall fastening that can be pivoted parallel to the frame can be arranged on it. This pivotable arrangement of the fastening tab enables the pretext element to be attached to the wall behind it depending on the pivoting position of the tab, which can preferably be provided with an elongated hole, as a result of which the fastening area can be expanded again. This gives the installer the option of making a mounting hole that is convenient for him, regardless of the number and arrangement of the attachments. Attaching the pre-wall element to a rail located on the wall is also considerably facilitated, since the dimensional accuracy of the attachment is not of great importance. However, devices for hanging in a, e.g. C-profile rail can be provided.

A further advantage is achieved in a variant if the pivot axis of the fastening tab is arranged on an end region of the tab and the end region has a radius which is concentric to the pivot axis and has a radius which essentially corresponds to the shortest distance between the pivot axis on the corner connector and its outer edge or to the top of the Cross brace corresponds. Pre-wall elements are often used to arrange hanging toilets in which there is a shelf above the concealed cistern. A precise positioning of the element forming the storage surface and its precise horizontal alignment is achieved by simply placing it on the end region of the tabs and the corner plug connection or the cross strut.

The exact distance dimension of the frame from the wall can be set expediently in particular if the distance between the tab and the frame can be adjusted by an adjusting element which engages with the fastening point on the corner plug connector. This could e.g. also achieve all the usual wall clearances with a single adjusting element, which reduces the inventory again.

In a further variant, the frame can be formed from three substantially parallel vertical struts and two cross struts, each holding these at a distance from one another, one cross strut with the central vertical strut with a corner connector and the other cross strut with the central vertical strut with a fastening device, preferably one Gusset plate, are connected. This makes it possible to expand a frame from two vertical struts laterally by attaching another vertical and cross strut.

In the following, protection is sought separately for a further embodiment. This relates to a pretext element with a frame made of at least two vertical struts essentially made of hollow profiles and at least one essentially made of hollow profiles which keep the vertical struts at a distance from one another. The pretext element is characterized in that at least one transverse strut has guide rails that can be inserted at a distance from one another transversely to their longitudinal extent into the end faces of the vertical profiles, with locking devices for locking and releasing the displaceable cross strut with respect to the Vertical struts are provided. Appropriate use of the cross strut, in particular as a base strip, allows this stepped connection between the cross strut and vertical struts to carry out a continuous height adjustment of the pretext elements. The height adjustment only depends on the length of the guide rails. A ceiling-high pretext element is particularly conceivable in this context. For this purpose, the arrangement of two or more adjustable pre-wall elements on top of each other, which can be adjusted according to the slightly varying ceiling heights and which permit a clean, seamless ceiling-high installation, also seems suitable for this purpose.

In a particular embodiment, the locking device can comprise a clamping nut which is arranged essentially stationary with respect to the vertical strut, which is arranged within the vertical strut and past which the guide rail is guided in regions, the locked clamping nut fixing the guide rail relative to the vertical strut. Due to the arrangement of the locking device essentially in the interior of the guide rail and the vertical strut, it is very well integrated into the frame and can be very easily adjusted by access from the outside.

It is also advantageous if a spring element is provided which exerts a spring force on the guide rail with respect to the vertical strut, as a result of which the cross strut is only displaced with respect to the vertical strut from a predetermined force. Loosening the lock nut does not automatically result in a displacement of the guide rail relative to the vertical strut, e.g. not by the weight of the pre-wall elements, but only at the will of the installer.

Fig. 1

eine erste Ausführungsform gemäß der vorliegenden Erfindung in einer perspektivischen, teilweise explodierten Darstellung,

Fig. 2

eine Anordnungsvariante von Vorwandelementen gemäß der vorliegenden Erfindung,

Fig. 3

die Ausführungsform aus Fig. 1 in einer Vorderansicht,

Fig. 4

die Ausführungsform aus Fig 3 in einer Seitenansicht,

Fig. 5

eine zweite Ausführungsform gemäß der vorliegenden Erfindung in einer Vorderansicht,

Fig. 6

die Ausführung von aus Fig. 5 in einer Seitenansicht,

Fig. 7

eine Ecksteckverbinderanordnung in einer perspektivischen Explosionsdarstellung,

Fig. 7a

einen Ecksteckverbinder mit Schraube in einer Vorderansicht,

Fig. 7b

den Ecksteckverbinder aus Fig. 7a entlang der Linie VII-VII geschnitten,

Fig. 8

eine schematische Darstellung der Verstellmöglichkeit durch Lasche und Ecksteckverbinder,

Fig. 9

eine Querstrebe mit angeordneten Ecksteckverbindern und Laschen in einer Vorderansicht,

Fig. 10

die Querstrebe aus Fig. 9 in einer Draufsicht mit angeschraubten Ablagewinkeln,

Fig. 11

eine Klemmutter mit zugehöriger Führungsschiene und Vertikalstrebe in einer perspektivischen Explosionsdarstellung,

Fig. 12

eine Klemmutter in einer Führungsschiene und Vertikalstrebe eingeführt in einer Unteransicht,

Fig. 13

eine Verbindungsstelle zwischen einer Vertikalstrebe und einer Traverse in perspektivischer Explosionsdarstellung,

Fig. 14

eine Vertikalstrebe in einer Draufsicht,

Fig. 15

ein Ausschnitt XV aus Fig. 14 in einer vergrößerten Darstellung,

Fig. 16

ein Spülkastenadapter in einer Vorderansicht,

Fig. 17

den Spülkastenadapter aus Fig. 16 entlang der Linie XVII-XVII geschnitten,

Fig. 18

ein Spülkastenadapter aus Fig. 17 entlang der Linie XVIII-XVIII geschnitten,

Fig. 19

den Bereich IXX aus Fig. 17 in vergrößerter Darstellung,

Fig. 20

eine Verbindungsstelle zwischen einer Vertikalstrebe und einem Spülkasten mittels Spülkastenadapter in schematischer Darstellung,

Fig. 21

eine Befestigungsplatte zur Verbindung von C-Profilen in einer perspektivischen Darstellung,

Fig. 22

eine Verbindungseinheit mit einer Verbindungsplatte gemäß Fig. 21 in einer teilweise geschnittenen Seitenansicht,

Fig. 23

eine erste Variante der Verbindungsstelle von C-Profilen mit der Verbindungseinheit aus Fig. 22,

Fig. 24

zweite Variante der Verbindungsstelle von C-Profilen mit der Verbindungseinheit aus Fig. 22,

Fig. 25

eine dritte Variante der Verbindungsstelle von C-Profilen mit der Verbindungseinheit aus Fig. 22,

Fig. 26

eine Verbindungsstelle von C-Profilen mit einer Verbindungsplattenvariante,

Fig. 26a

eine weitere Verbindungsplattenvariante in einer Seitenansicht,

Fig. 26b

die Variante aus Fig. 26a in einer Vorderansicht,

Fig. 27

eine Verbindungsstelle von C-Profilen mit einem teilweise geschnittenen Verbindungswinkel in perspektivischer Explosionsdarstellung,

Fig. 28

ein Verbindungswinkel in einer Draufsicht,

Fig. 29

der Verbindungswinkel aus Fig. 28 in einer Seitenansicht von links,

Fig. 30

der Verbindungswinkel aus Fig. 28 in einer Seitenansicht von rechts,

Fig. 31

eine Traverse mit einer Anschlußplatte in perspektivischer Darstellung,

Fig. 32

die Anschlußplatte aus Fig. 31 in perspektivischer Darstellung,

Fig. 33

die Traverse und Anschlußplatte aus Fig. 31 an einem Führungsholm angeordnet in geschnittener Querschnittsansicht,

Fig. 34

eine Traversenvariante mit Schallentkopplung in einer Vorderansicht und

Fig. 35

die Traversenvariante aus Fig. 34 in einer Draufsicht.

Exemplary embodiments of the present invention are explained in more detail below with reference to a drawing. It shows:

Fig. 1

1 shows a first embodiment according to the present invention in a perspective, partially exploded view,

Fig. 2

an arrangement variant of pre-wall elements according to the present invention,

Fig. 3

1 in a front view,

Fig. 4

3 shows the embodiment from FIG. 3 in a side view,

Fig. 5

a second embodiment according to the present invention in a front view,

Fig. 6

5 in a side view,

Fig. 7

a corner connector assembly in a perspective exploded view,

Fig. 7a

a corner connector with screw in a front view,

Fig. 7b

7a cut along the line VII-VII,

Fig. 8

a schematic representation of the adjustment option by means of a tongue and corner connector,

Fig. 9

a cross strut with arranged corner connectors and tabs in a front view,

Fig. 10

9 the cross strut from FIG. 9 in a top view with screwed-on storage angles,

Fig. 11

a clamping nut with associated guide rail and vertical strut in a perspective exploded view,

Fig. 12

a clamping nut in a guide rail and vertical strut inserted in a bottom view,

Fig. 13

a connection point between a vertical strut and a traverse in a perspective exploded view,

Fig. 14

a vertical strut in a plan view,

Fig. 15

14 shows an enlarged detail XV from FIG. 14,

Fig. 16

a cistern adapter in a front view,

Fig. 17

16 cut along the line XVII-XVII,

Fig. 18

17 cut along the line XVIII-XVIII,

Fig. 19

the area IXX from FIG. 17 in an enlarged representation,

Fig. 20

a connection point between a vertical strut and a cistern using a cistern adapter in a schematic representation,

Fig. 21

a mounting plate for connecting C-profiles in a perspective view,

Fig. 22

21 shows a connecting unit with a connecting plate according to FIG. 21 in a partially sectioned side view,

Fig. 23

22 a first variant of the connection point of C-profiles with the connection unit from FIG. 22,

Fig. 24

second variant of the connection point of C-profiles with the connection unit from FIG. 22,

Fig. 25

a third variant of the connection point of C-profiles with the connection unit from FIG. 22,

Fig. 26

a connection point of C-profiles with a connection plate variant,

Fig. 26a

another connection plate variant in a side view,

Fig. 26b

the variant of Fig. 26a in a front view,

Fig. 27

a connection point of C-profiles with a partially cut connection angle in a perspective exploded view,

Fig. 28

a connection angle in a plan view,

Fig. 29

28 in a side view from the left,

Fig. 30

28 in a side view from the right,

Fig. 31

a crossbar with a connecting plate in a perspective view,

Fig. 32

31 in perspective view,

Fig. 33

31 the crossbeam and connecting plate from FIG. 31 arranged on a guide bar in a sectional cross-sectional view,

Fig. 34

a truss variant with sound decoupling in a front view and

Fig. 35

the truss variant of Fig. 34 in a plan view.

The pre-wall element 1 used for the sanitary installation can be designed modified for the different applications, e.g. Figures 1, 3 and 4 a pretext element for toilet installation and Figures 5 and 6 a corresponding pretext element for attaching a sink and fittings. The individual configuration is discussed in more detail below. However, other conceptions of pre-wall elements, in particular the attachments, are also conceivable, which are adapted to the different applications, such as Shower, bathtub, urinals, bathroom furniture etc.

The pretext element 1 has a frame 2, which consists of two vertical struts 3 formed from hollow profiles and a cross strut 4 formed from an open hollow profile, preferably a C-profile, which holds the vertical struts 3 at a distance from one another. As can be seen in particular from FIG. 7 is, the hollow profile of the vertical struts 3 consists of a roll-shaped box profile, preferably rectangular cross-section, with a longitudinal web 5 arranged thereon on one side, in the middle of a shorter transverse side thereof. The longitudinal web 5 has three times the material thickness of the remaining hollow profile, since it is bent one sheet end was made over the other sheet end. Galvanized sheet steel is preferably used as the material, which is painted before the profiling or coated with a colored film.

In this exemplary embodiment, the C profile of the cross strut 4 and the box profile of the vertical struts 3 preferably have the same opening cross section on the inside. The respective end openings 6 and 7 of vertical strut 3 and cross strut 4 serve as plug-in receptacles for a corner connector 8, which engages with its plug-in lugs 9 and 10 in the end openings 6 and 7, respectively, in an essentially precisely fitting manner. As can be seen in the figures, the two plug inserts 9, 10 are arranged offset by 90 ° to one another, so that the corner plug connector 8 has an L shape receives and the lugs 9, 10 represent the L-leg. The corner connectors 8 form at least the upper corners of the frame 2. A central region 11 of the corner connector 8 forms the visible corner. For this purpose, this central region 11 is preferably adapted to the outer contour of vertical struts 3 and cross strut 4 or projects beyond them. This configuration forms stop surfaces 12 against which the vertical struts 3 and cross strut 4 cut perpendicular to their longitudinal axis can strike flatly. When the struts 3, 4 are plugged together by means of the corner connector 8, a high degree of dimensional accuracy is thus automatically produced.

Furthermore, each plug insert 9, 10 has a threaded bore 13, 14 extending transversely to the respective plug direction, into which suitable screws for fastening to the struts 3, 4 can be screwed. For the cross strut 4, the guide opening 15 arranged parallel to its longitudinal extent can be used for this purpose. For this purpose, the vertical strut 3 can have a corresponding opening 16. The attachment e.g. on the vertical strut 3, can also be done in such a way that a countersunk screw is inserted in the threaded bore 13, which does not protrude beyond the outer surface of the plug-in projection 9, and the opening 16 has a diameter which is smaller than the head of the screw used, but is large enough to ensure access to the screw head by a tool. The screw head can then be clamped against the inner wall of the vertical strut 3 when the corner connector 8 is inserted. In this embodiment, the corner connectors 8 can also be attached to the struts 3 from the front of the frame 2, since the fastening means do not protrude.

In FIGS. 8 and 9 it can be seen that the corner connector 8 with its plug inserts 9, 10 can also be designed, for example, as an aluminum die-cast part or a plastic injection-molded part and, for this reason, can have corresponding stiffening ribs and cavities 17 to avoid material accumulations.

In the central area 11, the corner connector 8 has a fastening point 18 in the form of a through hole, through which a screw 19 can be inserted, on the shaft of which a snap ring 19a is clamped in order to fix the screw 19 rotatably in the through hole, and the thread on the back the corner connector 8 over a large area, for example 10 cm, protrudes. The screw 19 represents a pivot axis for a fastening tab 20, which has a threaded sleeve 21 arranged thereon for receiving the screw 19. The fastening tab 20 serves to fasten the wall element 1 to the wall and accordingly has an elongated hole 22 through which wall fastening screws can be inserted. By turning the screw 19, the distance between the fastening tab 20 and the frame 2 can be adjusted, so that the corresponding pretext elements 1 can be used for a relatively large wall clearance area. Different screwing-in states are shown in FIG.

According to another variant according to FIGS. 7a and 7b, a snap ring 19b is inserted into the through hole in the corner connector 8 in such a way that it secures the head of the screw 19 axially in the through hole. The screw 19 is then held rotatably in the corner connector 8. The main supporting force is transmitted by the nut 19c and washer 19d screwed onto the thread of the screw 19, which are supported against the vertical strut 3.

Furthermore, it can be seen from FIG. 8 that the fastening tab 20 can also be designed, for example, as an aluminum die-cast element or a plastic element. From Fig. 8 it can also be seen that on the back of the mounting bracket 20, a hook member 23 is arranged set back from the rest of the support surface of the mounting bracket 20. The hook element 23 is able to be hooked into a corresponding guide opening in a C-profile rail fastened to a mounting wall. This allows assembly simplify the pretext elements 1 very much. If necessary, it can be attached to a C profile rail via a bore 24. From Fig. 9 it can also be seen that the fastening tab 20 can also have a plurality of elongated holes 22 in order to increase the number of different fastening options. Since the fastening tab 20 can be pivoted about the pivot axis at the central region 11 of the corner connector 8, it can be attached to the mounting wall in a wide variety of positions.

The end region 25 of the fastening tab 20 which is arranged around the threaded sleeve 21 has a rounding which is concentric with the pivot axis and has a radius which essentially corresponds to the shortest distance A of the pivot axis on the corner connector 8 to its outer edge or to the upper edge of the cross strut 4. This ensures that the upper edge of the end region 25 and the upper side of the corner connector 8 together lie in a plane perpendicular to the front of the frame 2. This is particularly advantageous if the upper side of the pre-wall element 1 is to be used as a support for a storage surface arranged thereon. These elements forming the shelf, e.g. a gypsum fiber cement or gypsum plasterboard, then lie in the wall area on the support areas of the end areas 25 and are automatically aligned at a corresponding angle to the front of the wall element 1.

The above-mentioned plug-in construction of the frame 2 also offers the advantage that the struts 3, 4 do not have to be welded in a subsequent process. By simply plugging these components together, both a stable and an extremely precise design of the frame 2 is possible, so that a stringing together of several wall elements 1 is far less problematic due to the high dimensional accuracy than in the prior art. In addition, the attachment of the pre-wall elements is very much simplified by the pivotable fastening tabs 20 fastened to the corner connectors 8. For the sake of completeness, it should be mentioned that the attachment of such fastening tabs 20 also in other places of the Wall element 1 can be used for the appropriate support of attachments.

FIGS. 5, 6, 11 and 12 each show an embodiment of the pretext element 1 in which the lower end openings 6 of the vertical struts 3 serve to receive essentially precisely fitting guide rails 26 which are held telescopically in the vertical struts 3. The guide rails 26 are arranged perpendicular to the longitudinal extent of a lower cross strut or bottom bar 27 and fastened to this. In the exemplary embodiment shown in the figures, 26 C-shaped rails are used as guide rails. The bottom bar 27 has fastening openings (not shown) for attachment to the base or to a C-profile rail fastened to it. At the lower end region of the vertical struts 3 there is also an opening 16 through which a screw 28 can be inserted. A specially designed clamping nut is inserted into the interior of the vertical struts, in which there is a threaded bore 30 for screwing in the screw 28. The clamping nut 29 is thus held in the interior of the lower end region of the vertical struts 3. The clamping nut 29 looks approximately V-shaped in cross section, so that essentially two clamping legs 31 are formed. At one end of the clamping nut 29 there is a pin 32 on which a bow spring 33 is pressed with its central region. The bow spring 33 has two spring arms 34, the deflection of which takes place transversely to the insertion direction of the guide rails 26.

The lock nut 29 is now designed so that when the screw 28 is loosened accordingly, it can be received by the inside of the guide rail 26, while the latter is still connected to the vertical strut 3 by the screw 28. The screw 28 engages in the guide opening 15 of the guide rail 26. This arrangement can be seen in particular (screw 28 not shown) in FIG. 12. By tightening the screw 28, the clamping legs 31 then press onto the guide rail 26 and clamp it relative to the vertical strut 3. The bow spring 33 now has the purpose that the spring arms 34 are already in the released state Clamp nut 29 exert a spring force on the side regions of the guide rails 26. This spring force is preferably chosen so that the entire wall element 1 is not automatically adjusted by loosening the screws 28, but is held in its position. Moving the guide rails 26 in the vertical struts 3 can only take place after applying a separate displacement force, which in particular gives the installer enormous advantages in the assembly of the pre-wall elements 1 because he does not have to hold them in a certain telescopic position. The position or the exact height of the pretext element 1 is then fixed by tightening the screws 28. As a result of the adjustment range created in this way, the flexibility with regard to attachment at different heights can be greatly expanded in the case of a pre-wall element 1. The installer is not bound to certain pre-wall element heights and can adjust them according to customer requirements. At this point it should also be mentioned that the clamping nut 29 can also be, for example, an aluminum die-cast part or a plastic injection-molded part with a correspondingly curved leaf spring, and the clamping nut 29 can have corresponding ribs and cavities to avoid material accumulations.

The configuration described above with the telescopic guide rails 26 also has the advantage that two or more pretext elements can be placed on top of one another in the case of wall-high expansions such that the ends of the vertical struts 3 provided with the guide rails 26 point away from one another, so that the one pretext element Floor bar 27 is now located at the top and can be connected to the ceiling of the room (see also Fig. 2 right side). With this configuration, deviations in the room heights can be easily realized by the corresponding displacement of the guide rail 26 in the vertical struts 3.

It can be seen from FIGS. 1, 3, 5 and 13 that the pretext element 1 has a plurality of cross members 35 which extend substantially parallel to the cross strut 4 and which are connected to the Vertical struts 3 are firmly connected and are used essentially for holding and arranging attachments. As already mentioned above, the vertical struts 3 have a longitudinal web 5 which extends in their longitudinal extent and has three times the wall thickness of the rest of the profile (see also FIGS. 14 and 15). The threefold wall thickness of the longitudinal web 5 gives it a particularly high strength and the vertical strut 3 sufficient rigidity. Furthermore, the longitudinal web 5 has a row of perforations with square latching holes 36, which also run along the longitudinal extent of the vertical strut 3. The locking holes 36 of two vertical struts 3 forming a common frame 2 are each at the same height. The center distance between two locking holes 36 is preferably selected to be very small in order to provide as many recordings on the longitudinal web 5 as possible. In one embodiment, the center distance is approximately 1 cm.

The cross member 35 consists essentially of a U-shaped sheet metal, which is respectively formed at its ends with locking lugs 37, which each engage in the locking holes 36. For this purpose, the U-web is detached from the U-legs 39 in the end regions of the cross member 35 and offset parallel inwards by a step 38, so that an approximately H-shaped profile is produced at the end regions. The U-legs 39 are stamped so that the locking lugs 37 and recesses 40 are formed. The dimension of the recess 40 is chosen so that its depth is less than the thickness of the longitudinal web 5, but can accommodate the width of the front region of the longitudinal web 5 with the detent 37 attached. A locking plate 41 with a screw 42 is assigned to the end region of the cross member 35. The locking plate 41 is supported when the latching lugs 37 are inserted into the latching holes 36 on the support surface 43 of the U-leg 39 which is staggered backwards, while the screw 42 is screwed into the threaded bore 44 at the end region of the cross member 35. As a result, the locking lugs 37 are firmly drawn into the locking holes 36 while the base of the cutouts 40 is supported on the longitudinal web 5. Let it this way arrange the trusses as a function of the row of holes at any height of the frame 2, which is done by simply inserting the locking lugs 37 into the locking holes 36 and tightening the screw 42 with the locking plate 41. In this context, it should also be mentioned that, in order to simplify the installation, corresponding marking strips or stickers can be arranged on the vertical struts, which indicate the respective position for mounting a specific traverse, for example a toilet or shower traverse.

Furthermore, it should be mentioned in advance that a cross member 35 designed in this way can be used for numerous attachment purposes by only minor modifications. For this purpose, the traverse 35 has corresponding receiving bores or threaded bores in its central region. This will be discussed in more detail elsewhere.

However, it should also be mentioned in addition that the figures do not show that at least one sound decoupling element is provided between the longitudinal web 5 and the cross member 35 in order to dampen vibrations which result from attachment elements attached to the cross members and their mode of operation.

With reference to FIGS. 1, 3, 4 and 16 to 19, it can be seen that a correspondingly shaped cistern adapter 46 is used on both sides for attaching a cistern 45 arranged between the two vertical struts 3. The cistern adapter 46 has the advantage that it enables the connection of a wide variety of cisterns 45 to the row of perforations of the longitudinal web 5. Like the cistern 45, the cistern adapter 46 is preferably made of plastic and can therefore be made very simply in one piece using the injection molding technique. The cistern adapter 46 has a base plate 47 for attaching a corresponding flange strip 48 to the cistern 45. The base plate 47 is provided with substantially T-shaped hook elements 49 which engage in the openings 50 on the flange strip 48 in order to To reach behind the flange bar 48. So that the hook elements 49 are not unintentionally disengaged, U-shaped recesses 51 are introduced in addition to the hook elements, so that resilient pressing lugs 52 are formed which engage the flange strip 48 in a correspondingly functional manner. The base plate 47 is adjoined on one longitudinal side by two angular legs 53, 54 aligned at right angles to one another in rows. The angle legs 53, 54 together, as can be seen in particular in FIG. 16, likewise have an essentially U-shaped recess 55, as a result of which two leaf spring-shaped elements 56 arranged perpendicularly on the base plate are formed on the vertical angle leg 53. On the side of the spring plate 56 facing away from the base plate 47 there are three triangular locking elements 57. On a base 58 of the angled leg 54 running parallel to the base plate 57, truncated pyramid-shaped locking pins 59 are arranged, the size and spacing of which are selected so that they fit into the Locking holes 36 can be inserted on the longitudinal web 5. So that the locking elements 57 can latch on the longitudinal web 5 relative to the base 58 of the angle leg 54, the parallel distance B between the base 58, from which the locking pins 59 protrude, and the locking element 57 is essentially the same size as the thickness of the longitudinal web 5. This is particularly nice to see in Fig. 20. With the cistern adapter 46, commercially available cisterns can now be easily attached to vertical struts 3 of wall elements 1 which have a hole pattern. The cistern adapter 46 is also very easily detached from the longitudinal web 5, since the latching elements 57 have corresponding run-on bevels both for removing and for plugging in. Another advantage of the plastic cistern adapter 46 is that it also serves as a sound decoupling element.

2 and 21 to 26, connection variants of open hollow profiles, in particular C profile rails, will now be described in more detail below.

In Fig. 2 it can be seen that when installing pre-wall elements 1 between the individual desired extensions along a mounting wall also empty spaces are to be bridged, but which are nevertheless covered by gypsum fiber cement or plasterboard panels arranged on the pre-wall elements, which are then preferably tiled . In order to ensure adequate support for these elements, 1 connecting struts 60, preferably in the form of C-profile rails, are arranged between the individual wall elements. In order to make it easier for the installer to attach these connecting struts 60, a suitable connecting unit is provided, which essentially consists of a connecting plate 61, which has openings 62 in the form of elongated holes open towards the edge of the connecting plate 61, and corresponding screws 63 which can be inserted into the opening 62 , preferably semicircular screws with square shoulder, with associated nuts 64. The openings 62 have an approximately circular indentation 65 at their closed end, so that elevations 66 are formed on one side of the connecting plate 61 and a correspondingly assigned depression 67 is formed on the other side. The diameter D of the elevation 66 is dimensioned such that it essentially corresponds to the width of the guide opening 15 of a C profile rail to be connected. The height of the elevation E is such that it is equal to or less than the wall thickness of the connecting strut 60. The height E is preferably only slightly smaller. The semicircular screw 63 used for this purpose has a lenticular head 68, the diameter of which is larger than the width of the guide opening 15 of the connecting strut 16. Therefore, the free end regions, which delimit the guide opening 15 of the connecting strut 60, can be between the Insert the underside of the head 68 and the connecting plate 61. Here, the connecting strut 60 is guided by the elevation 66 substantially in register. The semicircular screw 63 has a square section 69 below its head 68, which can be slidably inserted into the opening 62 in the connecting plate 61, but cannot rotate therein. The hexagon nut 64 has a guide projection 70 at its end facing the connecting plate 61 on, which can be inserted into the recess 67 in a substantially precise fit. From this embodiment it now follows that the connection of the connecting plate 61 to a connecting strut 60 is very simple under certain circumstances even with only one hand.

If a commercially available half-round screw 63 is used, the nut 64, as in the exemplary embodiment shown in FIG. 22, can have a bore extension 71 for receiving the area of the square section 69. So that corresponding connecting struts 60 can be connected to one another, the parallel distance C of the center of the recesses 67 and elevations 66 corresponds to one another essentially to the width G of the connecting strut 60. Furthermore, the openings 62 including the recesses 67 and elevations 66 are perpendicular in two arranged rows arranged to each other. In the example shown, there are three openings 62 in one row and two openings 62 in the other row. For this reason, the connecting plate 61 is approximately triangular in shape, since the row with the two openings 62 is perpendicular to the center of the row with the three openings 63 is so that their central opening 62 also belongs to the other row. The open sides of the openings 62 therefore all face away from one another. The connection unit can also be used to connect different profile strips, which means that the relevant dimensions must change accordingly.

Some connection variants are now shown in FIGS. 23 to 25.

FIG. 23 shows a connection point in which two connection struts 60 that are perpendicular to this are attached to a continuous connection strut 60. Because the elevations 66 are arranged appropriately in the associated guide openings 15, the two rows of openings are automatically arranged parallel and perpendicular to the continuous connecting struts 60. Moving the Connecting plate 61 along the guide opening 17 is very simple with the screw 23 and nut 64 loosened. Since the connecting struts 60 are generally cut exactly perpendicular to their longitudinal extension, the end faces of the two connecting struts 60 to be connected to the continuous connecting strut 60 can be supported on the latter, whereby they are additionally guided through an elevation 66 of the connecting plate 61. This fact makes aligning the connecting struts to each other extremely easy.

A connection point is shown in FIG. 24, in which two connection struts 60 which abut one another perpendicularly are connected to one another. In the drawing it can be clearly seen that the connecting plate 61 has a triangular shape with two legs of equal length which enclose a 90 ° angle. Accordingly, the third leg runs at 45 ° to the first two. The depressions and elevations 66 assigned to the tips of the triangular shape are arranged parallel to the legs, as seen in series, so that a right-angled fastening, as shown in FIG. 24, can automatically be achieved. Furthermore, the diameter of the recess 67 is selected so that the shortest distance K between the circumference of the recess 67 and the center line of a row, to which this recess 67 does not belong, corresponds to half the width of the connecting strut 60. As a result, the increase which lies outside the connecting struts 60 can be used for guiding purposes. Furthermore, this type of attachment shows that only two screws 63 and nuts 64 are necessary to ensure a stable attachment.

25 shows a connection variant in which two frames 2 of wall elements 1 are connected to one another. For this purpose, the fastening points 18, as well as the threaded bores 13, 14 and the opening 16 in the vertical struts 3 are used to connect the connecting plate 61. The distances between the holes 13, 14 and 18 on the corner connector 8 are chosen accordingly.

Fig. 26 shows an embodiment in which the connecting plate 61 is slightly modified. So that a connection of connecting struts 60 can also take place in two mutually transverse planes, an area 72 of the connecting plate 61 is bent out of the basic plane of the remaining connecting plate 61 by 90 ° in such a way that the resulting cutout 73 essentially corresponds to the external dimensions of one to be connected Connection strut 60 corresponds. The area 72 also has an opening 62 with a corresponding elevation 66 and depression 67, which is also aligned in line with at least one opening 62 in the base plane of the connecting plate 61, even if offset by 90 °. This allows e.g. Connect a vertically continuous connecting strut 60 with two connecting struts 60 ending at this, without requiring a large alignment effort, since the two adjacent connecting struts are automatically attached by the connecting plate 61 in one plane to the continuous connecting strut 60.

In the variant according to FIGS. 26a and 26b, a connecting angle 161 which can be connected to the connecting plate 61 is provided, which, like the connecting plate 61, has impressions 65 for providing elevations 66 and depressions 67 in its angle legs. The angle between the angle legs is preferably 90 °, so that a suitable spatial arrangement of C-profile rails 60 can take place. In order for an exact positioning to be carried out automatically, two assigned elevations 66 on the connecting angle 161 each have a size and a spacing from one another such that they can be inserted with a precise fit in corresponding recesses 67 in the connecting plate 61. The distance of the protruding angled arm, which is precisely defined in terms of its spatial orientation to the connecting plate by the inserted elevations 66 on the other angled arm, from the parallel edge of the connecting plate 61 corresponds essentially to the dimension of the C-profile rail 60 used, which is perpendicular to the C-profile width G. The use of a separate Connection angle 161 together with the connecting plate 61 allows numerous possible combinations of their arrangement, so that a corresponding expansion of the functionality of a pretext element is given.

The connecting plate 61 is preferably produced from sheet metal and the elevation 66 and the depression 67 are correspondingly produced by the impression 65. However, it is also entirely possible to produce the connecting plate 61 from other materials and with other manufacturing methods.

With reference to Figures 1, 10 and 27 to 30, the structure and operation of a support bracket is described, which can also be used as a connecting element. The support bracket 74 has a substantially flat support surface 75 and a fastening surface 76 arranged at right angles thereon and a support surface 77. The attachment and support surface 76, 77 are arranged at right angles to each other. The fastening and supporting surface 76, 77 each have two fastening openings 78 in the form of oblong holes that are open on one side. The open side of the fastening opening 78 is directed away from the support surface 75. The center distance L of the two fastening openings 78 of the fastening and support surface 76, 77 corresponds to the width G of a C-profile to be connected by the support bracket 74, which can be a connecting strut 60 or a cross strut 4, based on wall elements 1. Furthermore, the vertical distance M from the support surface 75 to the axis of the screws 79 later inserted into the fastening openings 78 corresponds essentially to half the C-profile width G / 2. This ensures when screwing onto a cross strut 4, for example, that the bearing surface 75 lies in one plane with the top of the cross strut 4 or the end regions 25 of the fastening tabs 20. 27 also shows how two C-profiles can be connected to one another by such a support angle. The support bracket 74 thus enables the connection of C-profiles in two planes, which is characterized by corresponding Arrangement of the support angle result in a number of connection options. Furthermore, the support bracket 74 can be used very well for supporting and fastening cover elements to be attached to the pre-wall element 1, for example gypsum fiber cement or gypsum plasterboard.

In addition, two rows of knobs 80 are arranged essentially parallel to the support surface 75 on the fastening and support surface 76, 77. The knobs 80 have a parallel external distance P, which corresponds to the width of the guide opening 16 of a C profile rail 4, 60. Furthermore, the axis of symmetry of the two rows is at a distance M from the support surface 75, which essentially corresponds to half the C-profile width G / 2. The knobs 80 are used for guiding and aligning the support angle 74 in the guide opening 15 of a C-profile rail 4, 60. This makes it very easy to align the support angle 74 on a C-profile rail 4, 60 and using the screw 79 and nut 81 connect the C profile rails 4, 60.

The support surface 75 has an approximately L-shaped access opening 82, the L-legs of which are arranged parallel to the fastening and support surface 76, 77. The access opening 82 enables a tool, in particular a wrench, to access the fastening means 79, 81 located in the respective fastening openings 78. Furthermore, the access opening 82 serves as a fastening opening for mounting on the stud wall and overhead. For the sake of completeness, it should be mentioned that, as can be seen in FIG. 28, fastening openings and knobs can be arranged in the bearing surface 75, but these do not necessarily have to follow the dimensional specifications of the fastening openings 78 on the fastening and supporting surface 76, 77. The fastening and supporting surface 76, 77 each have bores 76a, 77a which are used for fastening, in particular by means of self-tapping screws on a lightweight stand wall.

The support bracket 74 is preferably, as shown in the figures, made as a stamped and bent part made of sheet metal. It follows from the above that the support bracket 74 can fulfill several tasks as a multifunctional element. On the one hand, it serves as a support surface on a wall element 1 and, on the other hand, it can be used for numerous different connection variants of C-profile rails 4, 60.

1 to 4 and 31 to 33, a truss variant which is capable of accommodating toilet attachments is explained in more detail below.

As already described above, the crossbeam 35 consists of an essentially U-shaped support. Furthermore, the traverse 35 has recesses 83 in its U-legs 39. On both U-legs 39 there is a connection plate 84 which is connected to it by means of screws. The connection plate 84 projects downward over the cross member 35 and has an approximately T-shaped shape. The upper crossbeam of the T-shape covers the traverse 35 on its rear side and thus improves its torsional properties.

The recesses 83 of the crossbeam 35 are each associated with spring tongues 85 in the connecting plate 84, which are each formed in one piece with the closing plate 84. The spring tongues 85 have at their end region facing away from the fixed end a spring lug 86 which projects in the direction of the cross member 35 beyond the remaining surface of the connecting plate 84. The spring nose 86 is located in the region of the recess 83 or, as in the exemplary embodiment shown, somewhat below it. The recesses 83 form a guide receptacle, which is covered by the connecting plate 84, for displaceably receiving guide rails 87. Two guide rails 87 are arranged on each of a wall element 1 on a base strip 27 and fastened to the latter. The guide bars 87 extend parallel to the vertical struts 3 upwards and have a width and thickness which result in an essentially precisely fitting receptacle in leads the recesses 83 or the guide receptacle. A U-shaped flat steel is preferably used as the material for the guide bars 87 in order to at the same time achieve a structure which is rigid in the direction of the load but is nevertheless relatively light. Leading cover elements 88 are arranged on the connecting plate 84 in the extension of the guide receptacles. On the one hand, this can be done, as shown in FIG. 1, by a plate attached to the cross member 35 or connecting plate 84, or, as shown in FIG. 31, by means of two essentially U-shaped sheets. The guide rails 87 located in the guide receptacles are subjected to a spring force by the spring lugs 86, as can be seen in FIG. 33, so that the displacement of the bottom bar 27 or the guide rails 87 with respect to the cross member 35 and thus the entire frame 2 of the pretext element 1 can only be achieved by overcoming a predetermined force. This force is preferably selected so that there is no displacement due to the weight forces on the wall element 1.

The traverse 35 is locked with the connecting plate 84 with respect to the base strip 27 by means of a stop device, the height of which can be seen from the lower ends of the vertical struts 3. The stop device essentially consists of a threaded rod 90 which can be screwed in and out in an extension of the vertical struts 3 by means of an associated adjusting nut 89. For this purpose, a plug 91 is fixedly arranged in the lower end of the vertical strut 3, which enables the threaded rod 90 to be passed through. however, is a support for the adjusting nuts 89. The plug 91 can be supported by a collar on the end face of the vertical struts 3 or is connected to it by other fastening means. The lower end of the threaded rod 90 is supported on the bottom bar 27. The adjusting nut 89 is designed as a tilt nut for quick adjustment, so that the installer can make an adjustment as quickly as possible. The threaded rod 90 in conjunction with the nut 89 allows a very precise and sensitive adjustment of the desired height of the cross member 35 and connecting plate 84.

Corresponding fastening threaded bores are arranged either on the connecting plate 84 (FIG. 32) or on the cover elements 88 (FIG. 1) for fastening corresponding add-on parts; in the exemplary embodiment illustrated in FIGS. 31 to 33, the cover elements 88 have corresponding push-through openings 93 on the front for this purpose on. In this context, the internally open configuration of the guide bars 87 also benefits from such a fastening. So that the pressure of the add-on elements can be absorbed over a large area, the front of the cover elements 88 lies in one plane with the front of the cross member 35. Because e.g. When very large bending moments are effective when attaching a hanging toilet bowl, the cover elements 88 are supported on the guide rails 87, as a result of which deflection can very easily be kept to a tolerable level.

However, should it be necessary for heavy load reasons to limit the permissible deformation to a certain amount even with higher bending moments, a heavy load foot 94 (FIG. 1) supporting these parts can be provided to further support the cross member 35 or the connecting plate 84 the floor mounting surface is mounted and attached to the back of the above parts and supports them. However, the crossmember 35 can also be supported via fastening tabs 20 which are arranged accordingly. The structure and operation of the mounting tabs 20 is known from the above.

In order to improve the guidance of the guide bar 87, a further cross member 35 with corresponding recesses 83 for receiving the guide bars 87 can be arranged at the lower end region of the vertical struts 3.

The attachment of the cross members 35, possibly using sound decoupling elements, has also already been described above.

In FIG. 33 it can be seen that the cover elements 88 are fastened to the connecting plate 84 via fastening tabs 104 which can be inserted and bent into corresponding receiving holes 103. The openings resulting from the working out of the spring tongue 85 can also be used for this purpose. This is particularly the case if both the connection plate 84 and the cover elements 88 are made from sheet metal by means of a stamping and bending process. The spring tongues 85 with their spring lugs 86 are then arranged on the connecting plate 84 by simply punching out and bending.

The cover element 88 (FIG. 1) or the connecting plate 84 (FIG. 32) have a holding opening 95 for holding and passing through an inlet pipe 96 from the cistern 45. For sound decoupling, a ring, preferably made of rubber, is seated in the holding opening 95 for the sound-decoupled mounting of the inlet pipe 96. Furthermore, a holder 98 is provided, which preferably consists of plastic, and can be snapped onto the inlet pipe 96 via a snap clip 99. A detachable and attachable latching bracket 100 is also arranged on the holder 98, through which a drain pipe 101 can be fastened to the holder 98 in a sound-decoupled manner.

For the sake of completeness, it should also be mentioned that the mounting threaded bores 96 are arranged in the connection plate 84 in the region of resilient tabs 102, so that the resilient tabs 102 are pulled firmly against the guide bars 87 by tightening the screws and thus additionally to secure positioning of the attachment elements to lead. The resilient tabs 102 also take on the task of tolerance compensation in order to bridge manufacturing deviations.

In addition, an embodiment is also entirely feasible in which all the attachment elements are arranged on the frame 2, be it via the cross members 35 or other elements, for example cistern adapter 46, using sound decoupling elements. In addition, these Elements also simultaneously represent the sound decoupling elements themselves. Such measures lead to a drastic reduction in noise and thus ensure greater well-being for the later user.

34 and 35 show a truss variant in which sound decoupling has been advantageously implemented. The crossbeam 35 has a crossbeam main body 105 in which numerous fastening options in the form of openings 106, 107 and 108 can be attached for fastening components through which a fluid can flow. This cross member 35 can be used, for example, as shown in FIGS. 5 and 6, for attaching fittings. The end regions 109 of the cross member base body 105, each facing the struts 3, are each fastened with plastic screws to a connecting piece 111 with the interposition of a damping element 112. The connecting piece 111 has a step-shaped cross section with essentially parallel end webs 113 and 114. The first end web 113 overlaps a region of the cross-member base body 105 at a distance, so that the damping element 112 can be interposed. The damping element 112 has corresponding openings for the screws 110. Fastening openings 115 are provided on the second end web 114, which are dimensionally adapted to the grid dimension of the row of perforations arranged in the longitudinal web 5 of the vertical struts 3. In order to connect the cross member 35 to the vertical struts 3, a locking plate (not shown) is used, which is arranged similarly to the locking plate 41, so that the longitudinal web 5 of the vertical struts 3 is located between the second end web 114 and the locking plate. The locking plate, not shown, preferably has at least one locking lug, which engages accordingly in a locking hole 36. The sound decoupling achieved by this truss variant meets the highest requirements for permissible noise reduction requirements. In addition, the separate decoupling of each component is not absolutely necessary, but can still be carried out.

The various mounting options for pretext elements 1 can be seen in particular with the aid of the means described above. This configuration provides a wide variety of arrangement options for sanitary installations in the room.

Claims (12)

Wall-mounted installation element, for sanitary installation with a frame (2) made of at least two vertical struts (3) essentially made of hollow profiles and at least one essentially made of hollow profiles that keep the vertical struts (3) at a distance from one another and with these corners of the frame (2) forming cross strut (4), characterized in that the end faces of the hollow profiles are formed as essentially precisely fitting plug-in receptacles (6, 7) for a respective plug-in projection (9, 10) of a corner connector (8), each corner connector (8) extending the The vertical and transverse struts (3, 4) to be connected each form a corner of the frame (2) and the respective plug-in projections (9, 10) are offset in the hollow profiles at an appropriate angle to one another. Wall-mounted installation element according to claim 1, characterized in that the corner plug connector (8) is L-shaped and the two corner plug lugs (9, 10) which form L-legs which are essentially offset by 90 ° to one another. Wall-mounted installation element according to claim 1 or 2, characterized in that the corner plug connector (8) has stop faces (12) at the fixed end of the plug-in projections (9, 10), against which the end faces of the struts (3, 4) lie essentially in register. Wall-mounted installation element according to one of claims 1 to 3, characterized in that the plug-in projections (9, 10) are additionally detachably fastened to the struts (3, 4) with fastening means, as a result of which a displacement of the plug-in direction can be prevented. Wall-mounted installation element according to one of claims 1 to 4, characterized in that on the corner connector (8) there is a fastening point (18) for a distance parallel to the frame (2), pivotally arranged mounting bracket (20) is arranged for wall mounting. Wall-mounted installation element according to claim 5, characterized in that means (23) for hanging into a guide opening (15) of a C-profile rail are provided on the fastening tab (20). Wall-mounted installation element according to one of claims 1 to 6, characterized in that the pivot axis of the fastening bracket (20) is arranged at one end region (25) of the bracket (20) and that the end region (25) has a radius which is concentric with the pivot axis in a radius, which corresponds essentially to the shortest distance A of the swivel axis on the corner connector (8) to its outer edge or to the upper edge of the cross strut (4). Wall-mounted installation element according to one of claims 1 to 7, characterized in that the distance between the tab (20) and the frame (2) can be adjusted by means of an adjusting element (19) which engages with the fastening point (18) on the corner connector (8). Wall-mounted installation element according to one of claims 1 to 8, characterized in that the frame (2) is formed from three substantially parallel vertical struts (3) and two cross struts (4) each holding these at a distance from one another, the one cross strut (4) having the middle vertical strut (3) is connected to a corner connector (8) and the other cross strut is connected to the middle vertical strut (3) with a fastening device, preferably a gusset plate. Pre-wall installation element with a frame made of at least two vertical struts (3) essentially formed from hollow profiles and at least one cross strut (27) which keeps the vertical struts (3) at a distance from one another, in particular according to one of claims 1 to 9, characterized in that at least one transverse strut (27), at right angles to its longitudinal extent, has guide rails (26) which can be inserted with a substantially exact fit into the end faces of the vertical struts (3), locking devices (28, 29 ) for locking and releasing the displaceable cross strut (27) with respect to the vertical struts (3) are provided. Wall-mounted installation element according to Claim 10, characterized in that the locking device comprises a clamping nut (29) which is arranged in a substantially fixed manner with respect to the vertical strut (3), which is arranged within the vertical strut (3) and on which the guide rail (26) is guided in regions, whereby Locking the clamping nuts (29), the guide rail (26) relative to the vertical strut (3) can be fixed. Wall-mounted installation element according to Claim 10 or 11, characterized in that a spring element (33) is provided which exerts a spring force on the guide rail (26) with respect to the vertical strut (3), as a result of which the cross strut (27) is displaced with respect to the vertical strut (3) first occurs from a predetermined force.

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