EP0447936B1 - Device for the fixation of installation elements - Google Patents

Abstract

A device contains a fixing bar (2) and serves for the fixation of installation elements, in particular wall panels (50), on a room wall (75). The fixing bar (2) contains at least two fixing positions (6 - 9) arranged at a distance from one another. This device is intended to allow functionally secure fixation of the installation elements with simple handling and assembly. It is proposed that bridges (46, 48) projecting from the rear (44) along the lengthwise edges of the fixing bar (2) should be provided and that the installation element (50) should be located on the fixing bar (2) from the front. <IMAGE>

Description

The invention relates to a one-piece device provided for fastening installation elements for house installation for fresh water on a room wall according to the features specified in the preamble of claim 1.

A device for holding junction boxes for cold and hot water fittings has become known from DE-U-88 10 505. In this device, a base part is composed of two fastening parts which can be rigidly connected to one another at different intervals by means of screws. The handling of this known device provides that a junction box can be preassembled at an exact distance from an adjacent junction box. Then each junction box must be secured by additional holding means, such as nails, screws or the like. This makes handling quite cumbersome.

Another device for fastening installation elements is known from the German magazine "sbz Sanitär-Heizungs- und Klimatechnik, 1984, Issue 22, page 1710. This device contains a metal mounting rail with at least two spaced apart mounting points. The respective installation element points a housing with an opening on the back. The mounting rail penetrates this opening and is fastened by means of screws through corresponding holes in the bolt circle of the mounting rail. Only then can the mounting rail be fastened to the wall of the room together with the installation element (s). This known device is Part of a "pipe-in-pipe system" in which an insulating tube or the like is provided for the pipe which carries the medium, in particular water. The above-mentioned insulating tube is connected to the housing and after the mounting rail has been fastened to the wall of the room, an exchange can no longer be carried out easily. If another installation element is to be provided due to changed conditions, the mounting rail and any other components must be detached from the room wall. The different housings and installation elements require a corresponding effort in terms of production and storage.

From DE-A-29 30 518 a one-piece device is provided for fastening installation elements for the house installation for fresh water on a room wall with a mounting rail with two spaced-apart mounting locations for the installation elements to be installed on the front of the mounting rail.

This known device is primarily a handling aid in the form of a mounting template in order to be able to install a maximum of two installation elements, for example mixer taps or corner regulating valves, without extension and compensating fittings, and thus to enable the fittings to be installed more easily.

However, according to DE-A-29 30 518 it is provided that copper pipes or copper brackets are inserted into the device and connected at one end to the feed pipes before the device lying against the raw wall is cleaned. The other ends of the copper pipes or angles protrude horizontally from the wall and must be cut to length accordingly. Then a compression fitting is attached, to attach the corner valve or an adapter. The usual mixer taps can then be mounted on the intermediate pieces.

In view of these circumstances, it is desirable to improve the known device in such a way that the number of individual work steps is as small as possible and the handling of the device if possible does not require any special expertise, for example with regard to cutting the respective copper connecting pipes or copper angles as well as the attachment of compression fittings or the like.

On the basis of this prior art, the teaching according to the application has the task of creating a device which, with simpler handling, enables the functionally reliable fastening of wall panes. With the help of the device to be created, the installation elements usually mounted on plaster, such as corner regulating valves or fittings, should be able to be connected to the pipe parts and installation elements laid under plaster without any problems.

Furthermore, there should be the possibility that at least two installation elements or the like can be reliably installed at predetermined intervals. Here, the device as an assembly aid should ensure simplified handling during assembly and a reliable mounting of the connected installation elements.

This object is achieved by the characterizing features of claim 1.

The proposed device for fastening is characterized by a simple and functional design and enables safe assembly while avoiding overloads and damage to the pipelines. The device expediently forms a mounting unit which enables the wall pane or wall panes to be securely fixed. The wall pane is installed and fastened frontally, i.e. in the direction of view of a room wall and can therefore be done in a simple manner and without the use of special tools. The mounting rail is designed as a stamped part made of metal and can be manufactured inexpensively in large quantities. The mounting rail is anchored in the masonry of the room wall by means of dowels and screws, so that forces and moments acting on the wall and other fittings such as angle valves are transferred to the room wall and are thus kept away from the connected pipes. Furthermore, the device has several attachment options, so that secure installation can be reliably achieved even with brittle masonry.

The device designed as an assembly unit can be used in a particularly expedient manner by means of at least one, expediently by means of two extension rails arranged at the ends. These extension rails can be connected to the device on site during assembly, and in particular can be screwed on. These extension rails are preferably designed as perforated rails, which are bent in the required manner during assembly and / or cut to the required length. The hole spacing is specified in accordance with the hole spacing of the assembly unit, so that the connection or screwing can be made easily during assembly. With the help of this extension rail, a reliable pre-wall installation or anchoring to room walls in lightweight construction is possible. Furthermore, larger slots, in which other pipelines are installed, for example, can be safely bridged without any problems.

In a special embodiment of the invention, the mounting rail is completely embedded in rubber or an elastomer. Here, the holes or bores, which are provided for connecting the installation element to the mounting rail or for connecting the mounting rail to the wall of the room, are made of rubber or the elastomer lined. This ensures that the surrounding mortar cannot form sound bridges to the wall, even when it is installed in the wall. The installation element is also expediently surrounded and completely enclosed by means of a rubber or elastomer hood. The sound emanating from the connected fitting is absorbed in a particularly expedient manner and the tendency of undesired sound transmission is reduced in an effective manner. According to this particular embodiment, it is ensured that the metal parts, in particular the mounting rails, screws and the installation element, are completely encapsulated in rubber or elastomer and sound bridges to the wall due to the surrounding mortar are reliably avoided. The manufacturing and assembly effort is nevertheless low and handling during assembly is simple.

Fig. 1

eine Vorderansicht der Montageschiene,

Fig. 2

eine Seitenansicht in Blickrichtung II gemäß Fig. 1,

Fig. 3

einen Schnitt quer zur Längsachse der Vorrichtung, an welcher eine Wandscheibe befestigt ist,

Fig. 4

schematisch und in verkleinertem Maßstab eine Aufsicht in Blickrichtung IV gemäß Fig. 3,

Fig. 5

einen Schnitt entlang einer horizontalen Ebene durch die horizontal montierte und mit Gummi ummantelte Montageschiene,

Fig. 6

einen Schnitt durch die Haube für das Installationselement.

Special refinements and developments of the invention result from the subclaims and the special exemplary embodiments, which are explained in more detail below with reference to the drawing. Show it:

Fig. 1

a front view of the mounting rail,

Fig. 2

2 shows a side view in viewing direction II according to FIG. 1,

Fig. 3

2 shows a section transverse to the longitudinal axis of the device, to which a wall pane is attached,

Fig. 4

schematically and on a reduced scale a top view in viewing direction IV according to FIG. 3,

Fig. 5

a section along a horizontal plane through the horizontally mounted and rubber-coated mounting rail,

Fig. 6

a section through the hood for the installation element.

Fig. 1 shows a front view of the mounting rail 2, in a position rotated by 90 ° with respect to the normal installation position. In the installed position, the longitudinal edges 4 are aligned essentially horizontally. The mounting rail 2 is designed as an elongated rail and as a stamped part made of metal and contains a number of holes to be explained in more detail below. In the embodiment shown here, there are a total of four assembly points 6 to 9 along a longitudinal axis 5, which have defined distances 10 to 12 from one another. The assembly points 6 to 9 are each defined by a ring of holes 16 to 19 for fastening the wall pane or the like. The wall disks assigned according to the invention contain at least two diametrically arranged bores, namely at a distance corresponding to the diameter of the ring of holes. Furthermore, the wall disks or the like can have a number of corresponding bores, the comparable ring diameter corresponding to that of the perforated rings 16 to 19.

The distances 10 to 12 of the four assembly points 6 to 9 are predefined in such a way that a total of four defined assembly distances are achieved in accordance with the customary distances of fittings or hot water and cold water connections. The distance is 10 80 mm, the distance 11 70 mm and the distance 12 50 mm, with a total length 14 of 255 mm. The distance 10 and the sum of the distances 11 and 12 correspond to the distances 80 and 120 mm for wash basins with half columns. The sum of the distances 10 and 11, i.e. 150 mm, is intended for mixer taps for showers and showers as well as for sink connections. The total of the distances 10, 11 and 12, i.e. 200 mm, of the assembly points 6 and 9 is suitable for the assembly of wall panels for sink connections. To simplify assembly, the device 2 corresponding markings 20 to 25. The perforated rings 16 to 19 each contain eight holes 26, which are arranged equidistantly on the perforated ring, an angle 28 of 45 degrees being maintained in each case with respect to the center.

The eight holes 26 per assembly point have a diameter between 4 and 5 mm, preferably 4.5 mm. The holes 26 contain cylindrical inner walls. The fastening elements provided for fastening the installation element or the wall pane are designed as self-tapping screws. The device can be manufactured inexpensively. In addition, the holes 26 can also have an internal thread into which screws with an external thread can be screwed, but in this respect an increased production outlay is required. The design with a cylindrical inner wall and the use of self-tapping screws results in simple manufacture and nevertheless functionally reliable assembly of the wall pane or the like. It is also important that the mounting rail 2 is first anchored in the masonry and subsequently the installation elements are fastened to the device 2 by means of the fastening elements and in particular the self-tapping screws mentioned.

In order to enable the mounting rail 2 to be anchored in the masonry, the device contains further holes 30 with a circular cross-section and also an elongated hole 32. The three further holes 30 expediently have a diameter between 8 and 10 mm, preferably 9 mm, and enable them to be passed through a correspondingly strong screw. Usually, a first screw for anchoring in the masonry is passed through one of these further holes 30 and a second screw through the elongated hole 32. The elongated hole 32 is aligned transversely to the longitudinal edges 4, which are horizontal in the normal installation position. The elongated hole 32 also enables a good horizontal alignment of the device 2 when the associated bores or dowels are not exactly horizontally aligned in the masonry. The elongated hole 32 is arranged at a distance 34 from one side edge 36, while the further hole 30 provided at the other end of the device is at a distance 38 from the other side edge 40. As can be seen, the distance 34 is significantly larger than the distance 38. The holes 30, 32 for anchoring the device in the masonry are therefore not arranged symmetrically. Therefore, if the wall of the room at the intended installation location, for example at the location where the elongated hole 32 would be, has a mortar joint or a fragile location, the mounting rail 2 only has to be rotated by 180 ° about a horizontal axis. If the oblong hole 32 was initially on the left when viewed from the front, it is then on the right and accordingly the three further bores 30 are located on the left side. A fitter can drill the hole for the dowels in the masonry outside the initially unsafe area. In this respect, too, it is important that the installation elements are mounted frontally on the front side only after the device is anchored in the masonry and are aligned and fastened in the desired manner.

If necessary, the mounting rail 2 can be used to attach a single wall disc. For this purpose, the mounting rail 2 is shortened with a saw or cutting disc in such a way that only one of the four mounting points 6 to 9 and two of the holes 30, 32, expediently on both sides of the mounting point, remain. It may be noted that in principle a wall panel can also be attached directly to the masonry, but difficulties often arise because the masonry is brittle or has a mortar joint or the like at the desired installation location. By using the correspondingly shortened device with only one assembly point, a wall panel can be reliably anchored in the masonry even under such assembly conditions.

Fig. 2 shows the device in a side view. The front side 42 is planar, while the rear side 44 has webs 46, 48 directed rearward on the longitudinal edges 4. The webs 46, 48 result in a good stiffening of the mounting rail 2 with minimal use of material. Furthermore, these webs 46, 48 achieve improved support and anchoring in the masonry or the mortar or plaster layer. Although the arrangement of the webs on the longitudinal edges of the metal mounting rail 2 has proven to be particularly expedient, webs can also be arranged, for example, transversely to the longitudinal direction in the context of this invention. Furthermore, the webs can be interrupted if necessary.

3 and 4, the mounting rail 2 is shown with wall disks 50 and with extension rails 52, 54, with FIG. 4 being shown reduced in size compared to FIG. 3. The extension rails are designed as angled rails and contain a plurality of holes 56. The spacing between the holes is predetermined in such a way that they correspond to those of the holes in the mounting rail 2. However, the holes 56 have a somewhat larger diameter than the holes 26 of the mounting rail 2. The self-tapping screws already mentioned above can thus be inserted both through corresponding holes 58 in the wall plate 50 and the respective extension rail 52, 54 and into the smaller holes 26 in the Be cut into the wall panel. The installation element embodied here as a wall pane 50 contains a flange 49 in which the holes 58 are arranged. In this case, a single ring-like flange 49 with a plurality of corresponding holes 58 can be provided, or a flange which projects radially outwards can be provided for the hole 58. The holes 58 have a somewhat larger diameter in comparison with the associated holes 26 of the mounting rail 2, so that the required screws can be passed through without problems. The wall plate 50 has two connections 65, 66, whose longitudinal axes 67, 68 are arranged essentially orthogonally to one another and to which a plastic pipe or the desired fitting, valve or the like can be connected. The connection 65 is assigned a union nut 69, by means of which the connection to the pipeline to be connected is made possible in a manner known per se. For sealing, an additional sealing ring 71 is also provided within the wall plate 50. In the assembled state, the axis 67 runs essentially vertically, while the axis 68 runs essentially horizontally.

By means of the extension rails, slots or joints present in the masonry can be bridged if necessary, the lateral ends 62, 64 of the extension rails being anchored in the room wall or the wall by means of screws and dowels. During assembly, the extension rails 52, 54 are expediently first connected to the mounting rail 2, and after anchoring in the wall of the room, the wall disks 50 are mounted in a simple manner from the front using the self-tapping screws already mentioned.

5 shows a section in a horizontal plane through a special embodiment in which the mounting rail 2 is embedded on all sides in a layer 72 made of rubber or an elastomer. The wall pane 50 can be seen partly in section and partly in a view from below. The upper web 46 and the layer 72 surrounding it can also be seen in the view from below. On the back 44 of the mounting rail 2, the layer is also arranged continuously in the area of the holes 26 of the respective mounting location. The inner walls of said holes 26 and of further holes 30, 32 are also lined with the rubber or the elastomer. The wall pane 50 is fastened to the mounting rail 2 by means of two screws 70, the screws 70 being screwed into the layer on the inner wall cut in and easily push away the rubber or elastomer. The screws 70 are of such a length that their tips 71 at most express the layer 72 present on the rear 44 of the mounting rail 2, but in no case penetrate the layer 72. In cooperation with those protruding from the back 44. Bridges ensure that the screws 70 cannot form sound bridges to the room wall 75.

In the region of the further holes 30, 32, the layer has a suitably reduced wall thickness 74, a small depression 76 preferably being provided on the front. For fastening to the room wall 75, the screws 77 can therefore be easily pierced through this thin skin 78 made of rubber or elastomer. After assembly, in addition to the layer on the inner walls of the further bores 30, 32, the aforementioned skin 78 is made of rubber or elastomer, so that contact between the mounting rail 2 and the screw 77 is additionally counteracted. The head of the screw 77 expediently lies on the layer 72 above a washer 79, as a result of which excessive surface pressure or damage to the layer is avoided.

The wall pane 50 is preferably surrounded by a hood 80 which has a slot 82 on its underside. The hood 80 overlaps the heads of the screws 70 with which the wall plate 50 is screwed to the mounting rail 2. The hood 80 is only pushed onto the wall pane after the screws 70 have been tightened. The slot 82 provided on the underside of the hood 80 enables the lower part of the hood to be opened and pushed over the above-mentioned union nut, by means of which a pipe was previously connected, without difficulty.

FIG. 6 shows the hood 80 on an enlarged scale, specifically with reference to FIG. 5 in a vertical sectional plane. At the lower end, one side wall 83 can be seen here, which delimits the aforementioned slot with a further side wall lying in front of the plane of the drawing. The hood 80 also has a conical inner surface 87, the theoretical tip of which lies outside the hood 80 on an axis 86. At angle 85, corresponding to half the cone angle, it is specified in such a way that after the hood is slipped on, it is reliably held and pressed in the direction of the mounting rail. This angle 85 is advantageously in the order of 4 °. In connection with FIG. 3, it should be noted that after being pushed onto the wall element, the axis 86 essentially coincides with the axis 68 of the connection 66. The inner contour of the cap 80 is matched to the outer dimensions of the wall disks. Due to the conical inner surface 84, the hood is reliably held on the wall pane after being slipped onto the wall pane.

The hood 80 contains an extension 88 for the union nut already mentioned. Furthermore, the hood 80 contains a bulge 90 at the top and a bulge 92 on the side, only the bulge 92 lying behind the plane of the drawing being recognizable. After the hood 80 has been pushed on, these bulges 90, 92 overlap the flanges and screw heads, which are used to fasten the wall disk on the mounting rail. It is therefore ensured that not only the mounting rail and the wall element, but also the screws are completely encapsulated in rubber or elastomer and that no sound bridges can form if mortar is subsequently applied over the metal rail and the wall disc.

Claims (13)

1. One-piece device provided for the fixation of installation elements for the plumbing work for drinking water to a room wall (75), comprising a mounting rail (2) with at least two mounting points (6, 7, 8, 9) for the installation elements (50) to be installed on the front face (42) of the mounting rail (2) arranged at a distance from one another, characterised in that the mounting rail (2) has four mounting points (6, 7, 8, 9) formed by hole circles (16, 17, 18, 19) with different centre-to-centre spacings such that four different mounting spacings (10, 11, 12) are provided for every two installation elements, that the installation elements are wall discs (50) having flanges (49) with at least two holes (26) and two connections (65, 66) for a pipe, fitting or the like arranged substantially at right angles to one another, and that the installation elements (50) are held on the mounting rail (2) by means of screws (70).
2. Device according to claim 1, characterised in that the hole circles (16 - 19) each have eight holes (26) in the form of bores arranged in a uniform manner at an angle (28) of 45° with a diameter of 4 to 5 mm, said holes receiving the screws (70) provided to hold the installation elements (5).
3. Device according to claim 2, characterised in that the holes (26) are provided to receive tapping screws.
4. Device according to claim 2, characterised in that the holes (26) are provided with an internal thread.
5. Device according to one of claims 1 to 4, characterised in that the mounting rail has at least two further holes (30, 32) with a larger diameter of approximately 8 to 10 mm for fixation to the room wall (75).
6. Device according to claim 5, characterised in that at least one of the further holes (32) is an elongated hole.
7. Device according to one of claims 1 to 6, characterised in that webs (46, 48) are provided on the longitudinal edges of the mounting rail (2) and project from the rear face (44) thereof.
8. Device according to one of claims 1 to 7, characterised in that the mounting rail (2) is surrounded all-round by a layer (72) of rubber or elastomer.
9. Device according to one of claims 1 to 8, characterised in that the inner walls of the holes (26, 30, 32) in the mounting rail (2) are coated with rubber or elastomer.
10. Device according to one of claims 1 to 9, characterised in that the layer (72) on the rear face (44) of the mounting rail (2) is continuous in the region of the holes (26) and interrupted in the region of the further holes (30, 32).
11. Device according to one of claims 1 to 10, characterised in that the layer (72) on the front face (42) of the mounting rail (2) is continuous in the region of the further holes (30, 32) and/or has a reduced wall thickness (74) and/or a recess (76).
12. Device according to one of claims 1 to 11, characterised in that a hood (80) of rubber or elastomer is provided, said hood surrounding the installation element (50) and also completely covering the screws (70) for holding it on the mounting rail (2).
13. Device according to one of claims 1 to 12, characterised in that an extension rail (52, 54) is provided with holes (56), the spacings of which are adapted to the diameter of the hole circle (16 - 19) and is connected to the mounting rail (2) by means of screws which can be led through the holes (56) and the holes (26) of the hole circles (16 - 19).

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