EP0144926B1 - Device to fix panels on walls and/or on ceilings - Google Patents

Abstract

1. A device for fixing cassette-shaped wall and ceiling elements (14), with a supporting profile (1) which can be fixed on the wall or ceiling or on a substructure, having at least two holding devices (7) for each side of a cassette, which devices are fixable to the supporting profile (1), have supporting bolts (16), and can be displaced and secured in relation to the supporting profile (1) for the purpose of fixing neighbouring sides of a cassette, the wall and ceiling elements having fixing means (20, 21) for appending to the supporting bolts (16), which means are undercut in an angled-off side face (22) and run parallel to the cassette surface, characterised in that each holding device is constructed in the form of two carriages (7) which are displaceable and securable independently of each other and along the supporting profile (1), the fixing elements (12) being accessible via joints (24) between the cassettes (14) for the purpose of fixing the carriages (7) on the supporting profile (1) ; in that a supporting bolt (16), each belonging to one of the neighbouring cassette sides (22), is arranged in the side parts (15) of each carriage (7), and the ends facing each other of these bolts are arranged spaced from each other ; in that the carriages (7) are constructed and displaceable in relation to each other in such a way that the supporting bolts (16), which are as a rule at the same height, become spaced from each other ; and in that the undercut fixing means (21) are constructed so as to be symmetric to the opening (27).

Description

The invention relates to a device for fastening cassette-shaped wall and ceiling elements with a support profile that can be fastened to the wall or ceiling or to a substructure, with at least two holding devices that can be fastened to the support profile for each side of the cassette and have support bolts that are relative to the support profile can be moved and fixed for fastening adjacent sides of the cassette, the wall and ceiling elements in an angled side surface having undercut fastening means running parallel to the surface of the cassette for attachment to the supporting bolts.

Such a device is known from LU-A-80 537.

In the known devices for fastening cassettes or plate-shaped facade elements, the support profiles are screwed directly or indirectly onto the wall. Either bolts are inserted into the support profiles, or carriages with bolts are screwed into which the cassettes are hung in pairs with undercut angular recesses. Each bolt is used to hang two adjacent cassettes. The cassettes can still be moved upwards after being hooked into the supporting bolts, and expensive locking mechanisms or unhooking devices are required to secure them against undesired unhooking (e.g. due to wind forces). A device in accordance with LU-A-80 537 is a specially shaped, rotatably mounted pin which is secured against rotation with additional wire springs, in conjunction with a recess in the cassette which is complicated in terms of shape.

In a device according to DE-A-2 750 961, the release lock consists of a plastic sliding part with an integrally formed pawl in connection with a recess in the cassette which is just as complicated in shape. In the known devices, the angled side surfaces of the cassettes have asymmetrical, angular recesses. If it turns out after the assembly of the cassettes that adjacent cassettes hang at different heights, the cassettes must be removed for adjustment in a device according to LU-A-80 537, the slides moved and / or the angular recesses correspondingly reworked. The cassettes are then hung up again and secured against unhooking. This is extremely time-consuming.

In the case of a device according to DE-A-2 850 167, the cassettes must also be removed. The bolt intended for two adjacent facade elements is replaced by a short bolt for the matching cassette, and new holes must be drilled with a new position in the support profile and facade element for the other facade element.

Both procedures are very time-consuming and ineffective in view of the frequent readjustments. The known devices are also not fully usable because the hanging process can only be accomplished by moving the cassette, but not by moving the bolts.

The invention has for its object to provide a device for fastening cassettes so that it can be used both for fastening the cassettes to ceilings and on any inclined walls, that the cassettes in a simple manner after assembly without hanging the cassettes or Change in position of the neighboring elements can be adjusted and also that the cassettes are fixed immovably without additional securing elements.

This object is achieved with the features of the characterizing part of claim 1.

In the case of an attachment designed according to the invention, each slide which is used for the same attachment level and which is attached to the support profile has a support pin. which engages in the undercut recesses, which can either be formed directly in the side surface of the cassette or can also consist of mounting pieces which are fastened to the side surfaces and which have the corresponding undercut recesses. If mounting pieces are fastened to the cassettes, the fastening to the cassettes takes place in such a way that these mounting pieces can be displaced perpendicularly relative to the surface of the cassette. It is possible to adjust the distance from the cassette to the wall. The adjustment screws for the assembly pieces are located in the joint between adjacent cassettes and are accessible from the outside, so that the subsequent adjustment can be done without unhooking or moving the neighboring elements. If the undercut recesses are provided directly in the side surfaces of the cassettes, eccentric pieces are arranged on the supporting bolts, which are also accessible via the joint between two adjacent cassettes and the rotation of which also adjusts the spacing of the cassettes from the wall or from the ceiling.

So that the adjustment of adjacent cassettes can take place independently of one another, a carrying bolt is indeed in the same plane, but at a distance from one another in each of the interacting slides, so that the individual adjustment of individual cassettes can be carried out. As a further important measure, the slide is arranged to be displaceable relative to the support profile, at least over such a piece as the notching the trunnion requires from the undercut recesses. For this purpose, correspondingly large elongated holes are formed in the support profile, through which the fastening screws of the slide engage. These fastening screws are screwed into a slider, which is located on the back of the support profile. This makes it possible to move the carriage continuously and to fix it in any desired position. The screws by means of which the carriage is fastened are located in the joint between two adjacent cassettes and are accessible from the outside via the joint, so that the height of the cassettes can also be adjusted without the cassettes having to be removed. When adjusting the height, adjacent cassettes are adjusted in the same direction. In addition, the carriages provided with the support pins can be moved individually or in pairs in both directions in the support profile in such a way that both the load of the cassettes can be absorbed and the securing against unwanted detachment can be carried out.

• Fig. 1 einen Querschnilt durch eine erfindungsgemäße Befestigungseinrichtung, (Schnitt nach Linie I-I in Fig. 3)
• Fig. 2 einen Schnitt nach Linie 11-11 in Fig. 1,
• Fig. 3 einen Schnitt nach Linie 111-111 in Fig. 1.
• Fig. 4 einen Schnitt nach Linie IV-IV in Fig. 1.
• Fig. 5 einen Schnitt nach Linie V-V in Fig. 1.
• Fig. 6 einen Querschnitt durch eine zweite Ausführungsform gemäß der Erfindung, (Schnitt nach Linie VI-VI in Fig. 8)
• Fig. 7 einen Schnitt nach Linie VII-VII in Fig. 6,
• Fig. 8 einen Schnitt nach Linie VIII-VIII in Fig. 6,
• Fig. 9 einen Schnitt nach Linie IX-IX in Fig. 6,
• Fig. 10 einen Schnitt nach Linie X-X in Fig. 6.
• Fig. 11 eine Weiterbildung der Ausführungsbeispiele nach Fig. 6 bis 10 und
• Fig. 12 ein weiteres Ausführungsbeispiel gemäß der Erfindung.

Two embodiments of the invention are described in more detail in the drawings. In these show:

• 1 shows a cross section through a fastening device according to the invention (section along line II in FIG. 3)
• 2 shows a section along line 11-11 in Fig. 1,
• 3 shows a section along line 111-111 in FIG. 1.
• 4 shows a section along line IV-IV in FIG. 1st
• 5 shows a section along line VV in FIG. 1st
• 6 shows a cross section through a second embodiment according to the invention, (section along line VI-VI in FIG. 8)
• 7 shows a section along line VII-VII in FIG. 6,
• 8 shows a section along line VIII-VIII in FIG. 6,
• 9 shows a section along line IX-IX in FIG. 6,
• 10 shows a section along line XX in FIG. 6.
• 11 shows a development of the exemplary embodiments according to FIGS. 6 to 10 and
• Fig. 12 shows another embodiment according to the invention.

1 to 5 show an embodiment of a device for fastening cassettes. The device consists of a support profile 1 which can be fastened to the wall, ceiling or substructure by means of screws 2. The support profile 1 has two legs 3, 4, which have inward-facing lugs 5, 6, which form contact surfaces for a carriage 7. In the rear wall 8, a pocket 9 is formed in the support profile 1, which serves as a guide for a slider 10.

The back of the carriage 7 is connected to the tram profile 1 by means of two screws 12. The screws 12 pass through a slot 13 which is formed in the rear wall 8 of the support profile 1 in the region of the pocket 9. The length of the slot is shown in Fig. 3 and must be chosen at least so large that the cassettes 14 to be fastened with the device can be hung and unhooked. By providing a slot 13, it is also possible to continuously move the carriage 7 relative to the bracket 1 and to fix it in each of these positions. For this purpose, the threaded screws 12 engage in threaded bores provided in the slider 10.

In the side parts 15 of the carriage 7, the support bolts are arranged, which consist of a threaded screw 16 which are fastened with a nut 17. Annular attachments 19 are fitted onto the heads 18 of the screws 16, which engage with recesses 21 formed in the cassettes 14 or in assembly pieces 20.

The recesses 21 can either, as shown in FIG. 9, be made directly in the side surfaces 22 of the cassettes 14 or, as shown in the exemplary embodiment according to FIGS. 1 to 5, in mounting pieces 20 which are provided with Screws 23 are attached to the side surfaces 22 of the cassettes 14 are formed. The screw heads of the screws 23 protrude into the joint 24 which is formed between the two cassettes 14. It is possible to loosen or tighten the screws even when the cassettes are already attached. 4, the mounting piece 20 is shown in side view. The screws 23 engage in a recess 25 extending perpendicular to the surface of the cassette 14, so that the mounting piece can be displaced relative to the surface 26 of the cassette 14. As a result of this displaceability of the assembly piece, the spacing of the cassette 14 from the support profile 1 and thus from the wall or from the ceiling can be changed and tolerances between the individual cassettes can thus be compensated for. The recess 21 of the mounting piece 20 is formed symmetrically to the opening 27 so that the support pin 16 with its attachment 19 can be moved to both sides of the opening 27. 5 two cassettes 14 lying one below the other are shown. Each of these cassettes is usually connected to the support profile or the wall via four support bolts. Two support bolts are arranged one above the other on each side surface 22 of the cassette 14. The bolts have been adjusted by means of the slide so that the support bolts 16 are braced against one another, i.e. these are mutually arranged in a cassette, as can be seen from the lower part of the upper cassette and the upper part of the lower cassette. This ensures that the cassette cannot be moved parallel to the wall mounting and therefore requires no further security.

In the embodiment according to FIGS. 6 to 11, the same parts are provided with the same reference numerals.

This embodiment differs essentially of that according to FIGS. 1 to 5 in that the recesses 21 are arranged in the side surfaces 22 of the cassettes 14. The bolts 16 with their attachments 19 thus engage directly in the side surfaces 22 of the cassette 14. In order to nevertheless achieve an adjustment of the cassettes 14 perpendicular to the fastening surface, the attachments 19 have a bore which is not centered on the outer surface 28 of the attachments 19, so that by turning the screws 16, which simultaneously means the attachments firmly connected to the screws 16 19 are rotated, likewise a movement of the cassettes in the direction of the support profile 1 or away from it is obtained. The attachments 19 are further provided with a collar 29, which prevents the side surfaces 22 of the cassettes 14 from slipping off the support bolts.

As shown in FIG. 11, two adjacent cassettes 14 can be connected to one another via a continuous U-shaped sealing profile 30 that extends over the entire length of the joint 24, so that the wall is also continuously protected from moisture in the joint area. The sealing profile consists of aging and weather-resistant material with permanently elastic properties and is clipped onto attachment pieces 31 which are fastened to the side faces 22 of the cassettes 14. These top sections only need to have a small height of a few centimeters and are attached at defined intervals across the height of the cassettes. After assembly of the cassettes 14, the sealing profile 30 is pressed into the locking grooves 32 of the end pieces. The sealing profile has corresponding thickenings 33 at its ends. Due to its elastic properties, it can absorb movements in the joints (e.g. due to thermal influences).

In the embodiment of the invention shown in FIG. 12, the same parts are provided with the same reference numerals. This exemplary embodiment represents a modification of the exemplary embodiment shown in FIG. 6, and here, in contrast to the exemplary embodiment according to FIG. 6, the width of the rear wall 8 of the support profile 1 is adjustable. The adjustment of the width of the rear wall 8 of the support profile 1 takes place in that the support profile is divided into two parts which are connected to one another by a connecting flange 34. The connecting flange 34 is screwed to the rear wall 8 of the support profile 1 by means of screws 2. The connecting flange 34 is an integral part of a profile tube 35 which protrudes beyond the front of the cassettes 14 and shows a possible way of loosening the facade front.

Instead of the profile tube 35, only a flange 34 can be used for the connection of the two profile parts 1. This makes it possible to adjust the width of the joints between the two cassettes 14. The adjustability of the joint width, however, presupposes that a pocket is arranged in the rear wall of the profile web 8 for each slide 7, in each of which a slide 10 is slidably guided. The setting of the slider 10 is carried out analogously, as described with reference to the embodiment in FIG. 6.

Claims (14)

1. A device for fixing cassette-shaped wall and ceiling elements (14), with a supporting profile (1) which can be fixed on the wall or ceiling or on a substructure, having at least two holding devices (7) for each side of a cassette, which devices are fixable to the supporting profile (1), have supporting bolts (16), and can be displaced and secured in relation to the supporting profile (1) for the purpose of fixing neighbouring sides of a cassette, the wall and ceiling elements having fixing means (20, 21) for appending to the supporting bolts (16), which means are undercut in an angled-off side face (22) and run parallel to the cassette surface, characterised in that each holding device is constructed in the form of two carriages (7) which are displaceable and securable independently of each other and along the supporting profile (1), the fixing elements (12) being accessible via joints (24) between the cassettes (14) for the purpose of fixing the carriages (7) on the supporting profile (1); in that a supporting bolt (16), each belonging to one of the neighbouring cassette sides (22), is arranged in the side parts (15) of each carriage (7), and the ends facing each other of these bolts are arranged spaced from each other; in that the carriages (7) are constructed and displaceable in relation to each other in such a way that the supporting bolts (16), which are as a rule at the same height, become spaced from each other: and in that the undercut fixing means (21) are constructed so as to be symmetric to the opening (27).

2. A device according to Claim 1, characterised in that at least four installation pieces (20) are arranged so as to be displaceable and securable vertically to the cassette surface (26), which pieces have an undercut symmetrical recess (21) to receive the supporting bolts (16).

3. A device according to Claim 2, characterised in that the installation pieces (20) have oblong holes through which screws (23) engage whose screw heads are freely accessible on the outside of the side face (22) of the cassettes (14).

4. A device according to one of Claims 1 to 3 characterised in that one or more pockets (9) are constructed in the back wall (8) of the supporting profile (1), in which or into which a sliding member (10) provided with threaded bores is displaceably arranged; in that slots (13) or a groove extending over the length of the pocket. (9) are constructed in the supporting profile (1) in the region of the pocket (9), through which slots or groove the fixing screws (12) for the carriages (7) engage.

5. A device according to Claim 4 characterised in that the length of the slots (13) is equal to or slightly larger than the displacement path required for the supporting bolts (16).

6. A device according to one of Claims 1 to 5, characterised in that the carriage (7) is guided on all sides in the supporting profile (1).

7. A device according to one of Claims 1 to 6, characterised in that the supporting bolts (16) are provided with a top attachment (19).

8. A device according to Claim 1 and Claims 4 to 7, characterised in that the top attachment (19) is arranged excentrically on the supporting bolts (16) and the recesses (21) are arranged in the side faces (22) of the cassettes (14).

9. A device according to one of Claims 1 to 8, characterised in that at least four carriages and four supporting bolts serve to fix one cassette and in that the supporting bolts (16) lying on the same side of the cassettes (14) are arranged so as to be clamped against each other in the recesses (21).

10. A device according to one of Claims 1 to 9, characterised in that top attachment pieces (31) are arranged on the outsides of the side faces (22) of the cassettes (14) parallel to the surface (26), which pieces have notch grooves (32) to receive one arm of a U-shaped sealing profile (30).

11. A device according to Claim 10, characterised in that the sealing profile (30) engages with its arms into the top attachment pieces of neighbouring cassettes (14) and can take up movements in the joints.

12. A device according to Claim 1, characterised in that the fixing means (21) are constructed in the form of recesses in the angled-off side faces of the cassettes (14).

13. A device according to one of Claims 1 to 12, characterised in that, in the case of one common pocket for two carriages (7) opposite each other in one supporting profile (1), the opposite parts of each carriage (7) are provided with an oblique or unlatched end face, which enable the carriages to have a large displacement path against each other.

14. A device according to one of Claims 1 to 12, characterised in that the width of the bridge (8) and/or of the back wall of the supporting profile (1) is adjustable.

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