SK280791B6 - Fixing device comprising a mounting bar and installation elements - Google Patents

Abstract

A device contains a fixing bar (2) and serves for the fixation of installation elements. The fixing bar (2) contains four fixing positions (6, 7, 8, 9) arranged at a distance from one another, which positions, when mutually combined, equal to their basic installation spacing. It is proposed that bridges projecting from the rear along the lengthwise edges of the fixing bar (2) should be provided and that the installation element should be located on the fixing bar (2) from the front and attached thereto by screws (70).

Description

Technical field

BACKGROUND OF THE INVENTION The invention relates to a fastening device consisting of a mounting rail and installation elements which are fastened by means of a mounting rail to a building wall, the mounting rail comprising at least two spaced apart mounting positions and each comprising at least two mounting holes for fastening screws located on the spacing. The circle, and installation fittings are located on the front side of the mounting rail and are provided with fastening parts in the form of external holes for mounting screws inserted from the front side of the mounting rail.

BACKGROUND OF THE INVENTION

Fastening devices of this kind are known from the German magazine sbz, Sanitär-Heizungs- und Klimatechnik, 1984, Volume 22, p. 1710. This device comprises a metal mounting rail with at least two spaced apart mounting positions. The installation element to be connected is provided with a housing with an opening on its rear side. The mounting rail extends through this opening and the installation element is fixed by means of fastening screws through one of the openings located on the spacing circle. The mounting rail is attached to the wall only after this assembly with the installation elements and objects. This known device is part of a pipe-in-pipe system comprising plumbing pipes housed in insulating pipes and conveying mainly hot and cold water. The insulating tubes are connected to the housing and once the mounting rail is attached to the wall surrounding the room or other space, it is not possible to replace the installation element without taking further action. If another installation element is to be used as a result of the changed conditions, the mounting rails and possibly other components must first be released from the wall. The use of different housings and installation elements requires correspondingly increased costs to complete the installation and stock up the necessary parts.

Also known is a mounting template for mounting wall-mounted mixers and angle valves, which is described in DE-A-29 30 518. This mounting template ensures the required spacing of the individual installation elements which are fixed to the wall. This template moves the water pipes during installation, which are protected by protective pipes during installation. The corner valve installation element is fixed only after the cladding has been fitted in the last working operation by means of a screw, a plate or the like. This known template allows only aligning the two installation elements to a certain distance from each other. If it is necessary to install the installation elements at a distance from one another, a different mounting template must be used.

From CH-PS 626 968 a coupling device with a base plate is known which also allows the assembly of pipes at a single fixed spacing. The metal fitting in the form of a knee is surrounded by a plastic sheath and retaining goggles are attached to the front of the flexible plastic sheath, which are held by spacers at a necessary distance from the mounting plate. By means of this flexible plastic sheath, the acoustic separation of the plumbing fitting connected to the front end of the metal elbow should be achieved from the mounting plate fixed to the building wall. Retaining goggles, spacers and a flexible plastic housing are additional components that require considerable manufacturing and assembly costs.

SUMMARY OF THE INVENTION It is an object of the invention to provide a construction of a fastening device for fastening installation objects and elements which provides a functionally reliable fastening of the installation elements, in particular wall fittings. The device according to the invention should be easy to mount and allow easy handling. By means of this fastening device, the installation elements and objects, for example fittings, fittings, corner valves and the like, are to be fixed to the wall plaster, easily connectable to the pipe and the wall-mounted installation elements. The fastening device according to the invention should be designed to allow easy mounting of at least two side-by-side installation elements. In addition, the fastening device should be designed as an assembly means which, on the one hand, facilitates easy handling during assembly at low material costs and, on the other hand, provides functionally reliable fastening of the installation elements.

SUMMARY OF THE INVENTION

This object is achieved by means of a fastening device comprising a mounting rail and at least one installation element according to the invention, which consists in that the mounting rail is provided on its surface with four mounting locations spaced apart for two the installation elements are provided with at least four different large mounting spacing, the mounting rail is provided in particular on its longitudinal edges with webs extending from its rear side, and the installation element is a wall fitting located on the front side of the mounting rail having its two outer openings at least one of its flanges and comprising an arc with two connecting parts for connecting a pipe, fitting and the like.

The fastening device according to the invention, designed for fastening in particular wall-mounting objects, is characterized by a simple and functionally reliable construction and allows for a secure installation while avoiding the possibility of overloading and damaging the pipe to which the plumbing objects are connected. The device according to the invention constitutes a very advantageous mounting unit which enables a secure fixing of a wall fitting or a group of wall objects to a wall. The fitting of the wall fittings takes place from the front, that is to say in the direction of the wall view of the room, and can therefore be carried out in a simple manner even without the use of special assembly aids. The mounting rail is made of sheet metal strip by stamping, so that it can be produced in large series with low production costs. The mounting rail is fastened to the wall with screws and clips, so that when installing other fittings and fittings, such as angle valves or elbows, the forces and moments generated are transferred to the room wall and are not introduced into the connection pipe. The fastening device according to the invention has a number of other fastening options, so that reliable fastening can be achieved even in damaged or uneven masonry.

The fastening device in the form of a mounting unit has, in a preferred embodiment of the invention, a mounting rail provided with at least two wall-mounting holes having a larger diameter than the connecting holes spaced

SK 280791 Β6, the at least one of these holes being in the form of an elongated hole.

The fastening device according to another preferred embodiment is used together with at least one, but preferably with two extension strips attached to the ends of the mounting rail. These extension strips may be connected to the mounting rail at the mounting location, and are preferably connected to the mounting rail by screwing. These extension strips are preferably in the form of perforated strips, which can be bent and / or cut to length as required during assembly. The hole spacing of these extension bars is adapted to the hole spacing in the mounting rail as the basic mounting unit, so that the connection or screwing of both of these rails during assembly is without problems. By means of extension strips, it is possible to achieve an advantageous mounting of the installation elements at a distance from the wall, or it is also possible to mount the installation elements on light dividing mounted partitions. A further advantage of the combination of mounting rails with extension rails is the possibility of bridging larger grooves in which, for example, other pipes are laid.

In a further preferred embodiment of the invention, the mounting rail according to the invention is surrounded on all sides by a rubber or elastomer. Holes and holes are also provided in the housing to connect the installation objects and elements to the mounting rail, or to connect the mounting rail to the room wall, and it is preferred that the openings and holes are also encapsulated with rubber or elastomeric fabric. Thus, even when the mounting rail is placed directly on the plaster or into the core plaster layer, it is ensured that the surrounding mortar does not form an acoustic bridge to transfer noise from the pipe to the wall. In a preferred embodiment, the installation element is also surrounded by a rubber or elastomeric sheath and is thus mounted on all sides in a resilient bed. The noise coming from the attached fitting is thus very effectively absorbed and the possibility of unwanted noise transmission is thus effectively reduced. According to a particularly preferred embodiment of the invention, it is ensured that the metal parts, in particular mounting rails, screws and plumbing elements, are perfectly sheathed by rubber or elastomeric fabric and the acoustic bridges between these mounting elements and the masonry formed by surrounding mortar are discarded because of noise cannot transmit. The manufacturing and assembly costs of assembling installations using the mounting rail of the invention are equally low and handling is simple.

BRIEF DESCRIPTION OF THE DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS The invention will be explained in more detail with reference to the drawings, in which: FIG. 1 shows a front view of a mounting rail, FIG. 2 is a front view of the mounting rail taken in the direction II of FIG. 1, FIG. 3 is a cross-sectional view of the fastening device taken along a plane perpendicular to the longitudinal axis of the mounting rail to which the installation element is fastened; FIG. 4 is a reduced plan view of the mounting rail with extension rails taken in the direction of the arrow IV of FIG. 3, FIG. 5 is a horizontal cross-sectional view of a fastening device having a horizontal mounting rail, sheathed with a rubber layer, and FIG. 6 shows a vertical cross-section of the housing for the installation element.

DETAILED DESCRIPTION OF THE INVENTION

The fastening device consists of a mounting rail 2 and installation elements 50, which can be fastened via the mounting rail 2 to the room wall. Fig. 1 shows a front view of the mounting rail 2 according to the invention in a position turned by 90 [deg.] Relative to the normal mounting position, since after mounting on the wall the mounting rail 2 is usually horizontal. The mounting rail 2 is formed in the form of an elongated profile rail, made of sheet metal by stamping and pressing, and provided with a series of holes and openings, which will be described in more detail below. In the exemplary embodiment shown, a total of four mounting points 6, 7, 8, 9 are provided on the mounting bar 2 along its longitudinal axis 5, which are spaced apart at intervals 10, 11, 12. Each of the mounting points 6, 7, 8, 9 is defined by one group of connection openings 26, each arranged on a spacing circle 16, 17, 18, 19, which serve to secure the wall installation element 50 in the form of an installation fitting for connecting a pipe or other installation object. Attached wall elements or similar plumbing fittings comprise at least two apertures located on opposite sides of plumbing element 50, the spacing of which corresponds to the diameter of the spacing circle 16,17,18,19 of connecting apertures 26. The wall fitting or other plumbing element may also be provided with a plurality of corresponding apertures. , which can be placed in a circle whose diameter of the spacing circle of the holes corresponds to the diameter of the spacing circle 16, 17, 18, 19 of the connecting holes 26.

The spacing 10, 11, 12 of the four mounting locations 6, 7, 8, 9 is determined such that a total of four mounting intervals corresponding to the apertures used and other fastening parts of the fittings and fittings for making cold and hot water installations are achieved. The first spacing 10 has a value of 80 mm, the second spacing 11 has a value of 70 mm and the third spacing 12 has a value of 50 mm for a total length 14 of the mounting rail 255 mm. The first spacing 10 and the sum of the second spacing 11 and the third spacing 12 correspond to the spacing of 80 mm and 120 mm, respectively, which are required for washbasins with a support leg. The sum of the first spacing 10 and the second spacing 11 then gives 150 mm, which is the spacing required for the mixer taps of fixed and movable showers and also for the washbasin connections. The total sum of the first spacing 10, the second spacing 11a of the third spacing 12 is 200 mm, so that the mounting points 6, 7, 8, 9 are suitable for mounting wall fittings for connecting the pipe leading to the washbasins. For ease of assembly, the fastening device in the form of a mounting rail 2 is provided with the respective marks 20, 21, 22, 23, 24, 25. Each of the mounting locations 6, 7, 8, 9 is formed by eight connecting openings 26 which are equidistantly spaced. from each other on the spacing circle 16, 17, 18, 19, wherein the junction of the centers of the adjacent connection holes 26 with the center of the spacing circle 16, 17, 18, 19 forms an angle 28 which is equal to 45 °.

The eight connection openings 26 of each mounting location 6, 7, 8, 9 have a diameter of between 4 and 5 mm, in particular 4.5 mm. The connection openings 26 have a cylindrical inner wall. The fastening elements for fastening the installation elements or wall parts are preferably self-tapping screws, so that the device can be manufactured with low production costs. In addition, these openings 26 may also be provided with internal threads, into which fastening screws with an external thread may be screwed in, but in this case the manufacturing costs for manufacturing the fastening device are increased. The provision of connection openings 26 with cylindrical inner walls and the use of self-tapping screws simplify manufacture while ensuring functionally reliable assembly of wall fittings and the like. A great advantage is also that the mounting rail 2 is first anchored in the masonry, and only then the installation elements or other objects are fixed to the mounting rail by means of self-tapping screws.

To allow anchoring of the mounting strip 2 in the masonry, the mounting strip 2 of the fastening device according to the invention is provided in this exemplary embodiment with three circular holes 30 and one elongated hole 32. The three circular holes 30 have a diameter of 8 mm to 10 mm, in particular 9 mm. so inserting a larger screw. Typically, the first bolt for anchoring in the masonry is pushed through these circular holes 30 and the second bolt is inserted into the elongated hole 32. The elongated hole 32 is oriented perpendicular to the longitudinal edges 4 of the mounting rail 2, which are horizontal in the normal mounting position. By means of the elongated hole 32, it is possible to easily align the mounting rail 2 to a precisely horizontal position when the prepared holes in the masonry or the anchors anchored in the masonry are not formed at exactly equal heights. The elongated hole 32 is located at a first distance 34 from the first transverse end edge 36, while a first circular hole 30 formed at the second end of the mounting bar 2 of the fastening device is located at a second distance 38 from the second transverse end edge 40. As shown in FIG. . 1, the first spacing 34 is substantially greater than the second spacing 38. The first circular hole 30 and the elongated hole 32, which are intended to anchor the mounting rail 2 in the masonry, are thus not positioned symmetrically. Thus, if the masonry comprises a mortar joint or a fragile and rigid place at the mounting location against the elongated hole 32, it is sufficient to rotate the mounting bar 2 180 ° about the horizontal axis. Thus, if the elongated hole 32 is to the left in the front view, it is located after this rotation to the right and the first circular hole 30 is located on the left hand side. The installer can thus drill the necessary clip holes even in uneven masonry. It is also advantageous in the device according to the invention that the installation elements and objects are fastened to the mounting rail 2 from the front side and to the front side of the mounting rail 2 and only after the mounting rail 2 has been anchored into the masonry so that they can be aligned and fixed.

If desired, the mounting rail 2 can be used to mount a single wall fitting. For this purpose, the mounting rail 2 is shortened with a saw or a cut-off wheel to the required length, so that only one of the four mounting points 6, 7, 8, 9 and also one circular hole 30 and one elongated hole 32 are preferably located on a separate piece. each on a different side from the first mounting location 6. Although the wall fitting 50 can be mounted directly on the wall, there is occasionally the problem that at the desired mounting location the masonry is brittle and brittle or there is a mortar joint or other irregularity of the masonry. By using a suitably shortened mounting rail 2 comprising only one mounting location 6, the wall fitting 50 can also be fixed to the wall designated by the project under these problematic conditions.

Fig. 2 shows a side view of a portion of the fastening device 2 comprising a mounting rail 2 showing that the front side 42 of the mounting rail 2 is planar, while the rear side 44 is provided along the longitudinal edges 4 with rearwardly extending uprights 46, 48. The webs 46, 48 provide sufficient stiffening of the mounting rail 2 with low material consumption. Another function of these rear webs 46, 48 is to improve the mounting and anchoring of the mounting rail 2 in the masonry, plaster layer or poppy scale. Although the use of the folded webs 46, 48 on the longitudinal edges 4 proves to be the most advantageous, it is also within the scope of the invention to provide such webs on the transverse end edges 36, 40. In an alternative embodiment, the webs may be formed with interruptions.

In FIG. 3 and 4 show a cross-section and side view of the entire fastening device according to the invention, which consists of a mounting rail 2 and a mounting element 50 in the form of a wall fitting fastened thereto, the mounting rail 2 in this case also being connected to extension bars 52; 54; Fig. 4 is drawn to a reduced scale. The extension strips 52, 54 are in the form of angled strips and are provided with a plurality of apertures 56. The spacing of these apertures 56 is selected such that the apertures 56 lie opposite the connecting apertures 26 of the mounting rail 2. The apertures 56 have slightly larger diameters than the apertures The aforementioned self-tapping fastening screws can therefore be inserted through the corresponding outer holes 58 of the installation elements 50 as well as the extension bars 52, 54 up to the connecting holes 26 in the mounting rail 2, into which the fastening self-tapping screws are then screwed. The installation element 50, which in this example is a wall fitting, is provided with a flange 49 in which the outer holes 58 are formed. The installation element 50 may be provided with a single circular flange 49 with respective outer holes 58 or may be provided with only one radially outward The outer holes 58 have a slightly larger diameter than the opposite connection holes 26 in the mounting rail 2, so that the fastening screws can be freely moved by these outer holes 58. The wall fitting installation element 50 is provided with two connection portions 65, 66 whose longitudinal axes 67, 68 are perpendicular to each other and to which a plastic pipe or a desired valve, valve or the like part of the distribution installation can be connected. A screw nut 69 is screwed onto the first connecting portion 65, which serves to connect the pipe to be connected. A sealing ring 71 is still disposed within the wall fitting 50 to seal the joint. In the assembled state, the first longitudinal axis 67 extends substantially vertically, while the second longitudinal axis 68 is substantially horizontal.

By means of extension strips 52, 54 it is possible, if necessary, to bridge an uneven place in the masonry, grooves or other slots, the lateral ends 62, 64 of the extension strips 52, 54 being anchored by means of clips and screws in the wall or masonry. During assembly, the mounting rail 2 is preferably first connected to the extension rails 52, 54 and after the base mounting unit has been anchored in the masonry, the installation element 50 can be fastened to the front side of the anchored mounting unit by means of said self-tapping screws.

Fig. 5 shows a horizontal section through an exemplary embodiment of a fastening device according to the invention in which the mounting strip 2 is embedded in a rubber or elastomeric fabric layer 72 on all sides. The installation element 50 is shown partly in section and partly in a bottom view, wherein also the upper web 46 together with the surrounding layer 72 of rubber or elastomeric fabric is shown in a bottom view.

On the rear side 44 of the mounting rail 2, this casing cover 72 is formed continuously over the region of the connection openings 26 at the respective mounting location 6, 7, 8, 9, in which the inner walls of the connection openings 26 as well as round holes 30 and oblong holes 32 coated with a rubber or elastomeric coating. The mounting element 50 is fastened to the mounting rail 2 by means of two fastening screws 70, the fastening screws 70 being easily cut into the rubber or elastomeric coating layer on the inner walls of the connecting holes 26 when screwed in and pushed as necessary. The fastening screws 70 are of such a length that, when fully screwed in, their front ends 73 are at most slightly pushed into the layer 72 on the rear side 44 of the mounting rail 2, but in no case should they penetrate this layer. This sheathing of all contact surfaces and the beneficial effect of the two webs 46, 48, bent from the rear 44 of the mounting rail 2, ensures that the fastening screws 70 do not form any acoustic bridge between the wall fitting 50 and the room wall 75.

In the region of the circular holes 30 and the elongated hole 32, the rubber or elastomer layer 72 preferably has a reduced thickness 74, with a shallow depression 76 formed from the front. When fastened to the room wall 75, the anchor bolts 77 for anchoring the fastening device this thin membrane 78 of rubber or elastomeric material. Upon assembly, the ruptured diaphragm 78 bends into the interior of the circular holes 30 or the oblong hole 32 where it forms an additional resilient layer relative to the normal rubber or elastic material coating on the inner walls of the circular holes 30 or the oblong hole 32 to prevent direct contact between the mounting rail. 2 and the anchor bolts 77. The anchor bolt head 77 is preferably supported by a washer 79 on the rubber or elastomer layer 72 so that the anchor force is distributed over a large area and the rubber or elastomer layer 72 cannot be damaged.

The wall fitting installation element 50 is preferably surrounded by a cover 80 which is provided with a slot 82 on its underside. The cover 80 surrounds the heads of the fastening screws 70 by which the insulating element 50 is connected to the mounting rail 2. The cover 80 is mounted on the installation The slot 82 on the underside of the housing 80 allows for a smooth snapping and sliding of the underside of the housing 80 via a sliding nut 69 which serves to connect the pipe of the pipe to be made.

Fig. 6 is an enlarged view of the cover 80, which is shown in cross section taken along a vertical plane that is perpendicular to the section plane of FIG. 5. At the lower end of the cover 80, a first side wall 83 is shown which, together with a second side wall (not shown), in front of the plane of the drawing, limits the aforementioned slot 82 of the cover 80. The cover 80 further comprises a conical inner surface 84. 80 on the first axis 86. The angle 85, which corresponds to the apex angle of the cone folded by the conical inner surface 84, is selected such that after the cover 80 has been mounted on the wall fitting 50, the cover 80 is held in a fixed position and pressed towards the mounting rail 2. the angle 85 is generally about 4 °. In conjunction with FIG. 3, the first axis 86 is substantially coincident with the second longitudinal axis 68 of the second attachment portion 66 when the cover 80 is slid onto the mounting element 50. The inner contour of the cover 80 is adapted to the outer dimension of the wall fitting or other installation element 50. Due to the conical shape of its inner surface 84, the cover 80 is firmly held in the snap-fit position after being mounted on the installation element 50.

The housing 80 is further provided in its internal cavity with an extension 88 whose second axis 87 is perpendicular to the first axis 86 of the housing 80 and which is intended to receive the transfer nut 69 described above. The housing 80 is further provided with an upper protrusion 90 on its upper side. on both sides of the side projections 92, of which only one side projection 92 is shown, which is beyond the plane of the drawing. These side protrusions 92 and the upper protrusion 90 overlap, after sliding the cover 80 on the wall fitting 50, to the mounting flanges and heads of the fixing screws 70, which serve to attach the wall fitting 50 to the mounting rail 2. This ensures that not only the mounting rail 2 and the wall element, but also the fastening screws 70 are fully embedded in the rubber or elastomeric material and thus no acoustic bridges can be formed when the space around the mounting rail 2 and the wall fitting 50 is then filled with mortar.

Claims (13)

PATENT CLAIMS A fastening device comprising a mounting rail (2) and installation elements (50) which can be mounted by means of a mounting rail (2) to a wall of a room, the mounting rail (2) comprising at least two mounting points (6, 7, 8, 9) disposed spaced apart and each comprising at least two connection holes (26) for fastening screws (70) located on a spacing circle (16, 17, 18, 19), and the plumbing fittings (50) are fixed to the front of the mounting rail (2) ) and are provided with fastening parts in the form of external openings (58) for fastening screws (70) inserted from the front, characterized in that the mounting strip (2) is provided on its surface with four mounting points (6, 7, 8, 9). ) spaced apart so that at least four different large mounting spacings are available for two installation elements (50), the mounting strip (2) being provided at least at its the longitudinal edges (4) of the uprights (46, 48) extending from its rear side (44) and the installation element (50) is a wall fitting located on the front side of the mounting rail (2) having its two outer openings (58) formed on at least one of its flanges (49) and comprising an arc with two connecting parts (65, 66) for connecting a pipe, fitting and the like. Fastening device according to claim 1, characterized in that the mounting strip (2) is provided with at least two holes (30, 32) for fastening to a wall (75) having a larger diameter than the connecting holes (26) for fastening screws (70) disposed on the spacing circles (16, 17, 18, 19), at least one of said holes (30, 32) being in the form of an elongate hole (32). Fastening device according to claim 1 or 2, characterized in that the fastening screws (70) for fastening the installation element (50) are self-tapping screws and the connecting holes (26) in the metal mounting rail (2) have a smaller diameter than the opposite coaxial outer holes (58) in the installation element (50). Fastening device according to at least one of Claims 1 to 3, characterized in that extension bars (52, 54) with openings (56), whose spacing is adapted to the diameter of the spacing circles (16, 17, 18), are connected to the mounting rail (2). 19) in the groups of connection holes (26) and extension strips (52, 54) are connected to the mounting bar (2) by screws passing through both connection holes (26) placed on the spacing circles (16, 17, 18, 19) as holes (56) in extension strips (52, 54). Fastening device according to at least one of Claims 1 to 4, characterized in that the mounting strip (2) is surrounded on all sides by a layer (72) of rubber or elastomeric material. Fastening device according to at least one of Claims 1 to 5, characterized in that the connection openings (26) and the holes (30, 32) are provided on their inner walls with a coating of rubber or elastomeric material. Fastening device according to at least one of Claims 1 to 6, characterized in that the layer (72) of rubber or elastomeric material is formed on the rear side (44) of the mounting rail (2) in the region of the groups of connection openings (26) spacing circles (16, 17, 18, 19), continuously. Fastening device according to at least one of Claims 1 to 7, characterized in that the layer (72) of rubber or elastomeric material is interrupted on the rear side (44) of the mounting rail (2) in the region of the holes (30, 32). Fastening device according to at least one of Claims 1 to 8, characterized in that the layer (72) of rubber or elastomeric material has recesses (30, 32) formed on the front side (42) of the mounting rail (2) in the region of the holes (30, 32). 76) with reduced layer thickness (72). Fastening device according to at least one of claims 1 to 9, characterized in that the installation element (50) is surrounded by a cover (80) of rubber or elastomeric material, also covering the fastening screws (70). Fastening device according to claim 10, characterized in that the cover (80) is provided on its side facing the mounting rail (2) with a continuous slit (82). A fastening device according to claim 10 or 11, characterized in that the cover (80) has a conical inner surface (84) whose imaginary apex lies outside the cover (80) on a first axis (86) which is the same as the second a longitudinal axis (68) of the installation element (50) and which is perpendicular to the mounting rail (2). Fastening device according to at least one of Claims 10 to 12, characterized in that the housing (80) is internally provided with an extension (88) for a transfer nut (69) for connecting the pipe.