CZ2001575A3 - Fastening device for panel-like elements of a building outer walls - Google Patents

Abstract

The fastening for building fade panels has a rail (1) fixed to the building wall and having a groove (1). A two part (8,9) fastening is slidably adjustable in the rail, with engagement faces (18,20) for the upper and lower fade panels (28,27). A screw (15) connects the fastening to the rail and a second screw connects the inner and outer fastening sections.

Description

(57)

The fastening device for the panels of a particularly ventilated building envelope comprises a vertical rail (1) fixed to the wall of the building. A fastening element (7) consisting of a fastening element (7) is fastened to and fixed to the rail (1). the inner part (8) and the outer part (9). The fastening element (7) is provided with abutment surfaces (18, 20) for the upper and lower fasteners (28, 27) of the building envelope and a bearing surface (16) for the upper panel (28), upper envelope (28). The fastening element (7) is connected to the bar (1) by a first screw connection (15). By means of the second screw connection (22), the outer part (9) can be fixed to the inner part (8) of the fastening element (7). The two screw connections (15, 22) are placed one above the other.

Fixing device for building panels

Technical field

BACKGROUND OF THE INVENTION 1. Field of the Invention The invention relates to a fastening device for board components, in particular a ventilated building envelope.

BACKGROUND OF THE INVENTION

Fastening devices of this kind are known from EP-0 608 443 B1 and also from EP-0 651 113 A1. Short profile rails are fastened to the wall of the building provided with a cladding, on which the cladding elements of the ventilated cladding cladding are fastened in the areas of their upper and lower edges by means of a multi-part fastening element. The fasteners are designed and arranged to hold both the bottom panel and the top panel of the building at the same time firmly enough to withstand wind loads. The fastening element also accommodates the bearing forces, i.e., first and foremost, the gravity load of the upper building envelope, for this purpose a bearing surface is also provided on the fastening element for the lower edge of the upper envelope.

The lateral fastening of the fastening elements is ensured by the position of the rail in the form of a rail fastened to the wall of the building, since the rail has only a narrow, vertically extending groove which allows no significant lateral displacement forming the bearing in the bearing. However, also the height of the fastening element is given in the known fastening devices according to the prior art, because the holes in the fastening element are moved by two tapping screws, which are threaded into the corresponding holes in the piece of bar. The fastening element is pre-fastened with both self-tapping screws. Subsequent securing against, in particular, the load of the heavily mounted components of the envelope is carried out by further stronger bolting. This second screw connection is captured by the end molding head in the central groove of the rail and extends through both fastener parts so that both fastening of the fastener parts as well as a load-bearing fastening to the rail are resisted, both wind and load-bearing. cladding.

However, these known fastening devices require further refinement, which would in particular facilitate the assembly of the joint. The pre-assembly, in which the two self-tapping screws are tightened, results in the two-part fastening element already substantially reaching its final position. The height adjustment, in particular with respect to the upper edges of the downward facing panel, is no longer possible. Once the two sheet metal screws have been fitted once, a slight swiveling down is no longer possible for the plate removal or the peripheral panel only.

This also makes it difficult to install the building cladding.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a fastening device for board panels forming part of a building envelope having more advantageous mounting properties.

SUMMARY OF THE INVENTION

This object is achieved by the fastening device of the ventilated building envelope according to the invention, which consists in that the device consists of a rail fastened to the wall of the building and provided with an inward groove on its front side, fastening element with abutment surfaces parts and a bearing surface for a top-mounted top part, mounted on a rail, movable continuously along the rail and formed by an inner part and an outer part, from a first screw connection connecting the fastening element to the rail, from a second screw connection The fasteners can be fastened to the inner part of the fastener, the two screw connections being placed one above the other.

··· * ti

In a preferred embodiment of the fastening device according to the invention, the first screw connection is covered by the upper part of the envelope. It is also advantageous if the fastening element can be fastened to the rail in a set position by means of a first screw connection, continuously variable in its longitudinal direction.

According to a further advantageous embodiment of the invention, the second screw connection extends through both the outer part and the inner part of the fastening element and is provided at the inner end with a head part by which the second screw connection is supported from the rear by the edges. In this case, it is furthermore advantageous if an outer abutment surface is formed on the inner side of the outer fastener part for the building envelope and the head part of the second screw connection is rotatably supported in the bar and the tightening element of the second screw connection is supported. In this case, the second screw connection is accessible both after the assembly of the bottom panel and the top panel of the building. Therefore, even after the building envelope has been assembled, it is possible to check at any time whether the tightening element, in particular the hexagonal surface for mounting the assembly wrench, has been tightened with the correct tightening torque. On the other hand, the first screw connection, which only serves to pre-secure and secure the fastener to the rail, is no longer accessible after the cladding has been mounted and is also not visible when the opaque cladding panels are fitted.

Within the scope of the invention, the first screw connection therefore has the further task of securing the fastening element and, in particular, its inner part on a bar fixedly attached to the building wall. For example, in this pre-fastening, it should be taken into account that a sufficient gap should be provided to remove thermal stresses between the upper edge of the downwardly facing building component and the fastener.

When this position adjustment is complete, the first screw connection is tightened to pre-secure the fastener.

Then, the top of the building envelope is placed into the fastener, the fastener is assembled by fitting the outer panel, and finally the second screw connection is tightened. The tightening is carried out with a predetermined torque, and only then is the fastening of the fastening element with a wall-mounted rail sufficient to accommodate and transmit wind loads and also gravity forces. Since the second screw connection, which is in the same vertical plane as the first screw connection, is accessible even after the building envelope has been assembled, the correct torque value in the second screw connection can be checked at any time.

According to another advantageous embodiment of the fastening device, the inner part of the fastening element is formed from a one-piece shaped sheet metal formed by multiple folds, on which the plates of soft non-slip material are fastened in the areas of the bearing surfaces and also of the bearing surfaces.

The receiving surface for the upper panel is preferably formed on a one-piece shaped inner panel having an outwardly extending bend of the U-profile.

In a further preferred embodiment of the invention it is provided that the head part received in the rail extends with two tongues parallel to each other and fixed to the head part by the groove of the rail until the recesses on the rear side of the inner part are secured. This design makes installation even easier, since the head part, which is embedded in the profile rail, cannot be mounted before or during the installation of the second screw connection.

- 5 · *> 999 99 9 999 * · · 9 9 9 9 99 9 • 9 9 9 9 9 9 99 • 9 and 9 ······! 49 ♦ 9 I · 9 9 9 99

9999 99 9 * 9 9999 fall out of the profile bar. The head part of the second screw connection and the inner part are always arranged one above the other in the longitudinal direction of the profile rail.

Another advantageous embodiment of the fastening device according to the invention has an inner part, supported in the region of the second screw connection on the front side of the bar, provided with a tape clip extending into the groove of the bar and the tape clip is connected by a first screw connection to the bottom of the bar. This advantageous particular solution leads to a further simplification of the assembly, since the function of the first screw connection can be taken over by the already existing screwing of the profile rail piece to the building wall. The need for additional screwing is therefore eliminated, instead the first screw connection assumes both the function of securing the profile rail to the building wall and the function of pre-connecting the fastening element to the profile rail.

In order to limit the number of parts required to form the building envelope, it is proposed that the tape tab of the inner part be provided with an elongate hole extending in the longitudinal direction of the bar for the first screw connection.

According to a further preferred embodiment of the invention, a horizontal gap is formed between the lower cladding of the building and the upper cladding of the building on the bearing surface of the inner part, to drain any accumulated condensed water in the cavity between the building wall and the glazing. the drip plate runs up to the horizontal joint.

Furthermore, it is proposed that the drip plates extend at their ends up to below the bearing surface for the above-mentioned cladding panel.

The installation of drip plates can be simplified by turning them

- 6 ·· on the inner part of the screw connection by multiple bending creates a channel which is open towards the profile bar and into which the drip plates engage with their outer edges.

BRIEF DESCRIPTION OF THE DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an axonometric view of a mounting location prior to assembly of the top and bottom surface of a building envelope; FIG. 2 is a vertical cross-sectional view of the connection site after assembly of both the lower and upper panels; FIG. 3 is an axonometric view corresponding to that of FIG. 1 of a screwed joint connection modified from the example of FIG. 1; FIG. 4 is an axonometric view of an exemplary fastening device modified from the example of FIG. 3; and provided with a drip plate, and FIG. 5 is a vertical cross-sectional view of the fastening device of FIG. 4 after the lower and upper parts of the building envelope and drip plate have been completed.

DETAILED DESCRIPTION OF THE INVENTION

FIG. 1 shows a strip 1 which is fixed in a vertical position on a wall of a building to be provided with a ventilated cladding. The assembly of the bar 1 formed from a short piece of the profile bar is carried out as usual with dowels, so that for this purpose the bottom 2 of the bar 1 is provided with corresponding holes. The bar 1 is C-shaped in cross-section and its open side faces away from the building wall. The two arms 3 of the bar 1 thus define a groove 4 extending in the middle and bounded on both sides by inwardly folded areas 5 on the inner free edges of both arms 3. Extensions 6 are formed in the groove 4 which allow insertion of fastening screws with larger diameter.

• · • » • · • 4: · 9 • · • 9 · • • * 9 · 9 • «» 9 9 and 9 9 • •> • · 9 »« 9 6 • • · 4 · 9 4 · • 7 - ·· · · • · ♦ · 4 4 9 • ·

A fastener 7 consisting of an inner part 8 and an outer part 9 can be fastened to the strip 1. The inner part 8 is U-shaped and can be mounted from the outside to the profile of the strip 1, its arms 10 abutting on the outside. 3 and the base plate portion 11 of the inner part

8. abuts against the front 12 of the bar 1.

On the inner part 8, a tape clip 13 is formed in one piece by a double 90 ° fold, provided with an elongated opening 14 extending in the vertical direction, i.e. in the longitudinal direction of the bar 1. 13 to the bottom 2 of the strip 1. In this position, the first screw connection 15, shown in FIG. 1 only symbolically by its axis, can be pushed through the elongated hole 14 of the tape tab 13 and the corresponding hole in the bottom 2 of the strip 1. fasten to rail 1. Due to the elongated shape of the elongated hole 14 s, all tolerances can be aligned in this vertical connection, so that the inner part 8 can be mounted on the rail 1 in the desired height position.

An important function of the inner part 8 is to transmit the gravity load from the upper elements of the building envelope. This element of the envelope may be, for example, a glass plate or a steel sheet with or without various coatings. To accommodate these elements, an extended horizontal bearing surface 16 is formed on the inner part 8. This horizontal bearing surface 16 is perpendicular to the front side of the base plate portion 11 of the inner part 8. From a constructional point of view, the bearing surface 16 is formed on the upper wall of the channel 17 This channel 17 has a rectangular cross-section and is open at the rear side, i.e. towards the bar 1, and constructs a recess on the rear side of the interior part 8, the meaning of which will be explained in the description of the second embodiment. Of the invention.

The inner part 8 can advantageously be made of a one-piece sheet metal blank by multiple folding. This applies to all elements of the inner part 8, i.e. not only to the base plate part 11 with the arms 10 on both sides, but also to the tape clip 13 formed by double bending and to the U-channel 17 formed by quadrupling the originally planar sheet metal section. . To support the edge of the building envelope elements, the vertical abutment surfaces 18 of the base plate portion 11 as well as the horizontal bearing surfaces 16 are lined with panels 19 of soft non-slip material. With the same material, the corresponding outer abutment surfaces 20 are lined on the back of the outer part 9.

It can further be seen from FIG. 1 that the inner part 8 and the outer part 9 of the fastener are provided with coaxial holes 21 through which the second screw connection 22 can be inserted. The opening in the inner part 8 is located in the middle of the vertical surface 23 of the bottom of the channel 17.

In the exemplary embodiment of FIGS. 1 and 2, the second bolt connection 22 consists of a threaded bolt 25 with a head part 24 passing through the holes 21 in the inner part 8 and the outer part 9, the outer end of which is screwed in the finished state of the lock nut 26. The locking nut 26 is shown in the final position of Fig. 2. Further, it can be seen from Fig. 2 that the head portion 24 of the second screw connection 22 is supported from the inside against the edges of the inwardly extending groove 4. is the width of the open side of the groove 4. The head part 24 is thus secured against rotation in the groove 4 of the bar 1 by a known measure.

Giant. 2 shows all the components of the coupling point described in the previous section in the position after the assembly of the

·· ·· »· ·· • • · * • • • • • • · - · · • • • • • • · • · • · • · ···· • · · • • · • · • • · 9 - • · · 9 ·· ·· · • '· • ·

Medically with the bottom cladding 27 attached from below, and with the cladding upper panel 28, pressurized to the bearing surface 16 of the inner panel 8 under self-weight. The assembly of the joint comprises the following steps:

First, the inner part 8 of the fastening element is pre-fastened by means of the first screw connection 15 passing through the strap tab 13 to the rail 1. In doing so, it must be borne in mind that the height adjustment adjusts between the inner part 8 and the upper edge 29 a gap S to prevent voltage being applied to the cladding panels. Once the gap width S is set correctly, the first screw connection 15 is tightened to pre-secure and secure the fastener. Then, the top panel 28 is mounted from above and is supported by its own weight on the bearing surface 16. In another operation, the outer panel 9 is fitted and the second screw connection 22 is tightened after screwing the nut 26 so that the outer panel 9, the inner panel 8 and the strips 1 clamp both the building envelope elements 27, 28. Tightening of the second bolt connection 22 is effected by a predetermined torque, since the second bolt connection 22 has to carry almost all of the weight of the upper panel 28 of the envelope. Since the nut 26 of the second screw connection 22 is clearly visible and always accessible from the outside, the accuracy of the tightening torque can be checked at a later time. On the other hand, the first screw connection 15 lying in the same vertical plane as the second screw connection 22 is not accessible after assembly because it is covered by the upper panel 28 of the skirt. This is not a disadvantage, however, since the first screw connection 15 no longer carries any horizontal or vertical load on the fastener 7 at this point.

The embodiment of FIG. 3 differs from the previous examples shown in FIGS. 1 and 2, a different design of the second bolt connection 22. In this case the head piece • · · · · · · _φ 6? 10 is rigidly connected to the threaded bolt, but the head portion 24 is provided with an internal thread 30 similar to a nut. A screw 31 extending through the inner part 8 and the outer part 9 can be screwed into this internal thread 30. The head part 24 inserted in the bar 1 is provided with two parallel tongues 32 mounted thereon. These tongues 32 extend through the open side of the groove 4 through. In this way, the inner part 8 is positionally positioned relative to the head part 24 in the longitudinal direction of the molding 1 when the inner part 8 is mounted on the rail 1. In order to better position the head part 24 in the rail 1 2, a compression spring supported on the bottom 2 of the bar 1 can be fastened to the rear of the head part 24.

Figures 4 and 5 show another exemplary embodiment of a fastening device which largely corresponds to the examples described in the previous section. The examples in Figures 4 and 5 are additionally provided with drip plates 33a, 33b on both sides of the fastening element 7. Drip plates 33a, 33b serve to drain condensed water precipitated in the cavity between the building wall and the glazing. Both drip plates 33a. 33b extend outwardly from the wall of the building to which they are fastened by rivets 34, up to the horizontal joint 35. The horizontal joint 35 extends between the abutment surfaces of the lower cladding 27 and the upper cladding 28 on the seat 16 The height of the horizontal joint 35 is therefore dependent on the thickness of the respective shaped rib on the inner part 8, in which the channel 17 shown in Figures 1 and 3 is formed. Each of the drip plates 33a, 33b extends with its shaped outer edge 36 into the channel. 17 shown in FIGS. 1 and 3. This results in a positive fit of the outer edge 36 in the channel 17 so that the drip plates 33a, 33b are not compressed downward even under load and do not come into contact with the underside of the skirt 27.

 · '· ···· ·· 9 9 9 • 9 ♦ ♦ · • • 9 9 9 9 9 • 9 9 9 9 9 9 9 9 • 9 9 • 9 • · 9 9 9 9 9 9 • · * • 9 9 9 9  9 ♦ ··· 9 9 9 9 9 9 9

It can be seen from FIG. 5 that the drip plates 33a, 33b are inclined outwardly from the building and extend up to the horizontal joint 35 between the two building envelope sections 27, 28.

During assembly, the drip plates 33a, 33b reach their respective arms 10 with their edges 37 and at the same time each drip plate 33a, 33b reaches with its corner below the bearing surface 16 for the upper panel 28 of the peripheral cladding attached from above.

The assembly of the drip trays 33a, 33b is facilitated by extending their outer edges 36 into a channel 17 open to the rear side of the inner part 8 by their adapted shape so that the drip trays 33a, 33b are pre-locked in position before being permanently fixed thereafter. fastened with rivets 34 to the building wall or to the building wall cladding. The drip plates 33a, 33b are of such length that they extend horizontally and without interruption from one fastener 7 to the nearest adjacent fastener 7.

Claims (14)

PATENT CLAIMS A fastening device for a panel (27, 28), in particular a ventilated building envelope, consisting of a strip (1) fastened to the wall of the building and provided with an inward groove (4) on its front side (12), of a fastening element (7) ) with abutment surfaces (18, 20) for the upper and lower surface members (28, 27) and a bearing surface (16) for the upper shoulder (28) mounted on the bar (1), movable continuously along the bar (1); formed by an inner part (8) and an outer part (9), from a first screw connection (15) connecting the fastening element (7) to the bar (1), from a second screw connection (22) which is an outer part (9) fastenable to the inner part (8) of the fastener (7), the two screw connections (15, 22) being placed one above the other. The fastening device according to claim 1, characterized in that the first screw connection (15) is covered by a top-facing panel (28). Fastening device according to claim 1 or 2, characterized in that the fastening element (7) can be fastened to the rail (1) continuously in its longitudinal direction by means of a first screw connection (15). Fastening device according to Claims 1 to 3, characterized in that the second screw connection (22) extends through both the outer part (9) and the inner part (8) of the fastening element (7) and is provided at the inner end with a head part ( 24), by means of which the second screw connection (22) is supported from the rear side by the edges of the inward groove (4) of the bar (1). _. ·· • ·· 13 - • · · · · • · · · * · · · • · ♦ · » • • · • • · • · • ® • · • • ···· ·· • • · • · Fixing device according to claim 4, characterized in that an outer abutment surface (20) for the building envelope (27, 28) and the head part (24) is formed on the inner side of the outer part (9) of the fastener (7). The second screw connection (22) is non-rotatably mounted in the bar (1) and a tightening element (26) of the second screw connection (22) is supported on the front side of the outer part (9). Fastening device according to one of Claims 1 to 5, characterized in that the inner part (8) of the fastening element (7) is formed from a one-piece shaped sheet metal part, formed by multiple folds, on which the bearing surfaces (18) and pads (19) of soft non-slip material are fastened to the surface (16). Fastening device according to claim 6, characterized in that the bearing surface (16) for the upper part (28) located above is formed on a one-piece shaped inner part (8). Fastening device according to claim 5, characterized in that the head part (24) mounted in the rail (1) engages two tongues (32) parallel to each other and fastened to the head part (24) by a groove (4) of the rail (1) up to a recess on the rear side of the inner part (8) for securing the relative position of the inner part (8) and the head part (24) in the longitudinal direction of the bar (1). Fastening device according to one of Claims 1 to 8, characterized in that the inner part (8) supported in the region of the second screw connection (22) on the front side (12) of the bar (1) is provided with a tape clip (13) extending into the groove (4) of the bar (1) and the band clip (13) is connected by a first screw connection (15) to the bottom (2) of the bar (1). • · »· 99 * 99 • • 9 9 9 9 9 9 • • 9 9 9 9 9 9 * · 9 9 9999 • ΐ · • · 9 · 9 • · • • · • · 9 ♦ · · The fastening device according to claim 9, characterized in that the tape clip (13) of the inner part (8) is provided with an elongated hole (14) for the first screw connection (15). A fastening device according to any one of claims 1 to 10, characterized in that between the lower cladding (27) located below and the upper cladding (28) of the building located on the bearing surface (16) of the inner part (8) is a horizontal joint (35) is provided, wherein a drip plate (33a, 33b) extends from the wall of the building up to the horizontal joint (35). Fastening device according to claim 11, characterized in that the drip sheet (33a, 33b) runs at an inclination from the building wall up to the horizontal joint (35). Fastening device according to claim 11 or 12, characterized in that the drip plate (33a, 33b) extends with its end part below the bearing surface (16) for the upper part (28) of the building envelope. Fastening device according to claim 13, characterized in that a channel (17), open in the direction of the bar (1), into which the drip plate extends with its outer edge (36), is formed on the inner part (8) by multiple bends (33a, 33b).