EP0444552B1 - Fixing bracket for a curtain wall mounting-device system - Google Patents

Abstract

Curtain wall mounting-device system comprising a plurality of structurally identical fixing brackets (2) which can act both as fixed and as movable bearings, which are connected to a wall (1) or a floor slab (5) and receive on their free side (14) mullion profiles (3) in a manner such that they are displaceable in at least one direction. An individual fixing bracket (2) of this type essentially consists of a wall plate (8) and two leg plates (9) which project perpendicularly in front of this and fasten the mullion profile (3) between them. The leg plates (9) are connected by their guide rails (18), which slide in the receiving grooves (24), to the wall plate (8). The position of the leg plates (9) is adjusted in the longitudinal direction (6) via the adjusting screws (27). The mullion profile (3) is secured in its position between the leg plates (9) via retaining plates (43) and is connected to the latter via a retaining screw (42). <IMAGE>

Description

The invention relates to a mounting bracket according to the preamble of claim 1. Such brackets are used for anchoring post profiles for holding curtain wall parts and for anchoring post profiles between two ceiling panels of a building. The façade parts to be fastened are prefabricated by the façade builder, but must be assembled on the construction site to form a façade. During assembly, the dimensional deviations due to the tolerances permitted by DIN 4172 must be taken into account. Prefabrication of the facades is therefore only possible if the add-on parts allow the building-side tolerances to be compensated. Furthermore, the add-on parts have to accommodate dilatations resulting from temperature changes, which is why it is necessary to design a facade fastening system as a system of interacting fixed and floating bearings. If such a system consists of several mounting brackets, a certain proportion of the brackets used must be designed as a fixed bearing and the rest as a floating bearing.

From DE 30 32 359 C2 a console is known which consists of a U-shaped mounting rail part and a spacer with two parallel cheeks, in which the U-legs of the mounting rail are pushed over the cheeks of the spacer. Agraffes are also mounted on the two cheeks, which engage behind a guide part located on the mounting rail with a rear engagement part, so that the mounting rail can be displaced in its longitudinal direction parallel to the cheek surfaces. The disadvantage of this design is that different brackets are used as fixed and floating bearings. Furthermore, vertical adjustment of such a console is very difficult in the final assembly state. Another serious disadvantage of this console is the problematic assembly of elements and mullion-transom constructions in the area of wall aprons, wall parapets etc. The installation space required to push the mounting rail onto the cheeks of the spacer is often not available. In such a case, the installation can only be realized by moving the attachment point of the console, which is time-consuming and therefore costly.

The invention has for its object to realize a facade fastening system from several identical consoles for receiving post profiles such that there is a three-dimensional displaceability of the brackets to compensate for building tolerances that the consoles can be used both as a fixed bearing and as a floating bearing and that the facade fastening system can be assembled in the smallest of spaces during final assembly on the construction site and absorbs the dilatations that occur in the final assembly state.

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

The wall plate is preferably attached to the building on a wall or ceiling using anchor rails, dowels or anchor plates. Compensation for any mounting tolerances of the wall plate is achieved either by moving the fastening elements located in the anchor channels or by appropriately designing the fastening point. By designing the attachment point on the wall plate as an elongated hole extending in the transverse direction of the wall plate, it is possible, for example, to move the wall plate relative to a bolt protruding from the wall.

Two leg plates are pushed in the direction of the longitudinal axis of the wall plate with guide rails located on them in groove-like recesses in the wall plate. In the final assembly state, each of the two leg plates can slide with their nose-like guide rail in the manner of a sliding guide in the respective groove-like recess of the wall plate. This possibility of sliding is used when the device is used as a floating bearing to accommodate the dilatations that occur.

During assembly, a leg plate is first pushed with its guide rail into the groove-like recess of the wall plate. Next, the single or multi-part post profile is inserted and only then is the second leg plate installed. The cohesion of the construction is ensured by the retaining bolt inserted in the transverse direction. The inserted post profile is adjusted in the longitudinal direction and held in its final assembly position by means of an adjusting screw which is effective in the longitudinal direction.

In the execution of the console according to claims 8 and 9, the device is used as a fixed bearing. In addition to an adjusting screw effective in the longitudinal direction, additional securing bolts, preferably screws, are additionally inserted through the outer sides of the projections and the guide rail in the transverse direction perpendicular to the longitudinal direction. These protrude into a through hole running in the longitudinal direction in the guide rails.

If the device is used as a floating bearing, the openings and the securing bolts are omitted, and the set screw is not preloaded. Rather, the set screw has a play of preferably 5 mm with respect to the head sides of the projections, as a result of which the absorption of the dilatations is ensured.

The combination of the wall plate with an angle plate described in claims 10 and 11 is used to mount post profiles between the ceiling panels of a building, in which the brackets are not mounted next to each other, as in the case of continuous post profiles in the case of curtain walls, but opposite one another. This embodiment is consequently suitable for fastening post profiles between ceiling panels on the one hand and as a connection for an otherwise continuous facade in front of the ceiling panels.

The C-shaped design described in claims 12 and 14 of both the receiving groove cross section and the guide rail cross section causes the guide rail and the receiving groove to form an essentially round prism slide guide with large guide surfaces. A major advantage of such an almost closed prismatic slide guide with large guide surfaces is the largely impossible tilting of the guide rail relative to the receiving groove.

The additional molding of beads in connection with the guide projections described in claim 15, in a possible embodiment according to claim 13, prevent the leg plates from rotating in relation to the wall plate in the transverse direction. This is particularly advantageous if initially only one leg plate is installed during assembly, the position of which is initially still unstable with respect to the transverse direction due to the missing transverse bolt.

Due to the attachment of a holding plate described in claim 18, and the profiling of the outer side of the leg plate as tooth surfaces described in claims 16 and 17, and the corresponding configuration described in claims 19, 20 and 21 as tooth surfaces of the active surfaces of the holding plates facing them, on the one hand the adjustability of the post profile with respect to the leg plates and thus the entire device in the direction of the wall plate moving towards or away from this realized.

The use of a retaining screw lying in a sleeve and pretensioned with a clamping nut, as described in claims 22 and 23, in conjunction with the aforementioned features brings about a unitary assembly joined together by positive and non-positive engagement.

Fig. 1

eine Darstellung eines gesamten Fassadenbefestigungssystems zur Verankerung von durchlaufenden Pfostenprofilen bei vorgehängten Fassaden,

Fig. 2

eine Darstellung eines Fassadenbefestigungssystems mit zwei über Winkelplatten am Gebäude befestigte Konsolen zur Verankerung von Pfostenprofilen zwischen zwei Deckenplatten,

Fig. 3

eine Seitenansicht der Konsole, wobei die Zeichenebene gleichebig zur Längsrichtung der Wandplatte verläuft,

Fig. 4

eine geschnittene Draufsicht auf die Konsole entsprechend Pfeil I in Fig. 3, wobei die Zeichenebene gleichebig zur Querrichtung der Wandplatte verläuft,

Fig. 5

eine geschnittene Draufsicht entsprechend Pfeil I in Fig. 3 auf eine Sonderausführungsform der Konsole mit Sicken in den Aufnahmenuten und Fixiervorsprüngen an den Führungsschienen, (Zeichenebene = Querrichtung der Wandplatte)

Fig. 6

eine Prinzipskizze des Montagevorgangs eines zweiteiligen Pfostenprofils mit einer Konsole aus der Draufsicht.

Fig. 7

eine Prinzipskizze der Montageendstellung eines zweiteiligen Pfostenprofils mit einer Konsole aus der Draufsicht.

The invention is explained in more detail with reference to exemplary embodiments shown in the drawings. Show it:

Fig. 1

a representation of an entire facade fastening system for anchoring continuous post profiles with curtain walls,

Fig. 2

a representation of a facade fastening system with two brackets attached to the building via angled panels for anchoring post profiles between two ceiling panels,

Fig. 3

2 shows a side view of the console, the plane of the drawing running parallel to the longitudinal direction of the wall plate,

Fig. 4

3 shows a sectional plan view of the console in accordance with arrow I in FIG. 3, the plane of the drawing being the same as the transverse direction of the wall plate,

Fig. 5

a sectional plan view according to arrow I in Fig. 3 on a special embodiment of the console with beads in the receiving grooves and fixing projections on the guide rails, (plane = transverse direction of the wall plate)

Fig. 6

a schematic diagram of the assembly process of a two-part post profile with a console from the top view.

Fig. 7

a schematic diagram of the final assembly position of a two-part post profile with a console from the top view.

The facade fastening system shown in FIG. 1 shows three fastening brackets 2 directly connected to the wall 1, in which continuous post profiles 3 are fixed. 2 shows two brackets 2, each of which is mounted via an angle plate 4 between two ceiling plates 5 and connected to a post profile 3.

3 and 4 show the detailed structure of the console 2, the drawing plane of FIG. 3 running the same lengthwise to the longitudinal direction 6 and the drawing plane of FIG. 4 being perpendicular to the drawing plane of FIG. 3 and the same to the transverse direction 7 and the direction of repulsion ( 15) runs.

The console itself consists essentially of a wall plate 8 and two leg plates 9. The wall plate 8 is fastened with two fastening nuts 10 to two anchor pins 11 protruding from the wall 1. These anchor pins 11 pass through the wall plate 8 in two wall plate slots 12, both of which lie on the wall plate transverse axis and are cut by it. With anchor pins 11 already inserted, the wall plate 8 can be displaced in the two wall plate elongated holes relative to the wall 1 in the transverse direction 7 running parallel to its wall plate transverse axis. In the final assembly state, the wall plate 8 faces the wall 1 with its wall end face 13 and faces away from its free side 14, the wall end face 13 partially resting firmly against the wall 1.

The post profile 3 lies perpendicular to the wall, with its longitudinal axis at right angles to the longitudinal direction 6 as well as to the transverse direction 7, extending in its stepping direction 15, between the leg plates 9. The leg plate outer sides 16 each carry at the assembly ends 17 of the leg plates 9 a C-shaped guide rail 18 with the same cross-section with respect to the transverse direction 7. The guide rail 18 has a longitudinal opening 6 on its head side 19 which defines it in the longitudinal direction 6 and into which a passage opening 20 extends an adjusting thread 21 is formed.

From wall plate 8, two cheek-like projections 22 protrude in the direction of separation 15, in each of which a channel-shaped receiving groove 24 is formed in the mutually facing inner flanks 23 pointing towards the post profile 3. The receiving groove 24 has a C-shaped cross-section which is the same as the transverse direction 7 and serves as a guide groove for the guide rails 18 located on the leg plates 9, which surrounds them in the manner of a claw. The leg plates 9 are inserted with their guide rails 18 on a groove collar 25 into the receiving grooves 24 extending in the longitudinal direction 6 over the entire length of the wall plate 26 in the longitudinal direction 6.

The guide rails 18 sliding in the longitudinal direction 6 in the receiving grooves 24 are secured in the longitudinal direction 6 by an adjusting screw 27 screwed into the adjusting thread 21 formed on the head side 19. The adjusting screw head 28 is supported on the groove collar 25 of the receiving groove 24 via a support disk 29 which absorbs the forces acting in the longitudinal direction 6 if the bracket 2 is to act as a fixed bearing in the facade fastening system. In addition, in the outer flank 30 of the projections 22 is preferably designed as an Allen screw, approximately in the direction of the bisector 32 of the transverse direction 7 and the direction of repulsion 15 introduced to the wall 1 securing bolt 31 such that it passes through the outer flanks 30 of the receiving grooves 24 and the guide plates 18 in an alignment line 33 corresponding to its direction of travel. The securing bolt 31 is an additional securing of the fixed bearing. If the bracket 2 acts as a floating bearing in the facade fastening system, there is preferably a play of 5 mm between the adjusting screw head 28 and the groove collar 25. The securing bolt 31 is not required for the floating bearing without replacement.

Fig. 5 shows a special embodiment of the guide rails 18 on the one hand and the corresponding grooves 24 on the other. In this special embodiment, beads 34 pointing in the transverse direction 7 and extending in the longitudinal direction 6 are formed in the receiving grooves 24, which are filled in by guide projections 35 protruding from the guide rails 18 in the transverse direction 7 when the guide rails 18 are inserted. This combination of the beads 34 and the fixing projections 35 has the effect that the position of the leg plate ends 36 facing away from the mounting ends 17 in the direction of separation 15 cannot be changed in the transverse direction 7. This anti-rotation device is particularly useful when the brackets 2 are still to be described.

The leg plate inner sides 37 facing away from the leg plate outer sides 16 in the transverse direction 7, together with the free side 14 of the angle plate 4, form a U-shaped hollow cross section 38 which is the same as the plane spanned between the transverse direction 7 and the repelling direction 15 15 inserted into the free side 14 of the wall plate 8.

The leg plates 9 are each pierced approximately in the middle between the mounting end 17 and the leg plate free end 36 by a leg plate elongated hole 39 which extends in the direction 15 and which is located in the longitudinal direction approximately in the upper third of the leg plate facing the head side 19 of the guide rail 18. The post profile 3 is completely penetrated in the transverse direction 7 by a transverse bore 40, into which a transverse sleeve 41 is introduced.

The post profile 3 is fixed in the hollow cross-section 38 in such a way that a retaining screw running in the direction of its central longitudinal axis 50 parallel to the transverse direction 7 42 penetrates the thigh plate elongated holes 39 and the transverse sleeve 41 lying in the transverse bore 40 in the transverse direction 7.

In order to prevent a relative displacement of the post profile 3 with respect to the leg plates 9 in the direction of separation 15 in the final assembly state, additional holding plates 43 are mounted on the outside of the leg plate. The respective active surface 44 of the holding plate 43 facing the respective outer side of the leg plate 16 is profiled like a tooth surface. In the transverse direction 7 tooth ribs 45 protrude from the outside of the side plates 16 and extend in the longitudinal direction parallel to the wall 1 over the entire outside of the side plates. Tooth troughs 46 run parallel to the tooth ribs 45.

The tooth surfaces on the outer side of the leg plate 16 and the respective active surfaces 44 of the holding plates 43 facing them are designed to be mirror images of one another. The tooth surface-like leg plate outer sides 16 and the active surfaces 44 engage in the manner of a meshing pair of gears, with a toothed rib 45 in each case lying in a tooth valley 46 corresponding to it. Are the leg plate outer sides 16 and the active surfaces 44 in such engagement, they are no longer displaceable in the direction 15 to each other. Averted from the active surfaces 44, the clamping surfaces 47, which run identically to the active surfaces 44, are present on the holding plates 43. The holding plates 43 are pierced by a through bore 48 extending from the clamping surfaces 47 to the active surfaces 44. In the assembled state, the through bore 48 runs parallel to the transverse direction 7.

The retaining plates 43 are penetrated by the retaining screw 42 in their through bores 48 in the final assembly state such that the through bores 48 of the retaining plates 43, the leg plate elongated holes 39 and the transverse bore 40 of the post profile 3 are aligned with one another in the direction of the central longitudinal axis 50 of the retaining screw 42 running parallel to the transverse direction 7 run.

The operation of the described device is approximately as follows:

a) Assembly:

The wall plate 8 is via its wall plate slots 12 on the wall 1st attached. The first of the two leg plates 9 is inserted with its guide rail 18 on the groove collar 25 into the receiving groove 24 in the longitudinal direction 6. If the device is to act as a fixed bearing, the leg plate 9 is adjusted in the longitudinal direction of the wall plate 8 using the adjusting screw 27. This adjustment process does not apply when used as a floating bearing.

There follows the assembly of the post profile 3, which can also be made in two parts (Fig. 6, Fig. 7). The set screw 42 is first passed through the through hole 48 of the holding plate 43 and inserted into the leg plate slot 39. The first part of the Pfosenprofil 3 is pressed in the transverse direction 7 on the inside of the thigh plate 37 and in turn penetrated by the retaining screw 42 in its transverse bore 40. The second half of the mullion profile 3 is attached in the transverse direction 7 to the already assembled first half of the mullion profile 3 and also penetrated by the retaining screw 42 with the transverse sleeve 41 in its transverse bore 40.

In the next assembly step, the second leg plate 9 is inserted with its guide rail 18 into the receiving groove 24 belonging to it on the wall plate 8 analogously to the first leg plate 9. The retaining screw 42 is also passed through the leg plate slot 39 of the second leg plate 9 in the transverse direction 7 and provided with the second retaining plate 43.

In the last assembly step, the post profile 3 is adjusted in its position with respect to the direction of repulsion 15 via the leg plate elongated holes 39. If the mullion profile 3 is in the desired end position with respect to the direction of repulsion 15, a clamping nut 49 is screwed onto the retaining screw 42 in such a way that the tooth surfaces of the active surfaces 44 and the outer side plates of the leg plates 16 engage in one another and thereby secure the post profile in its position in the direction of repulsion. With the help of the clamping nut 49, the retaining screw 42 is prestressed such that the post profile 3, the leg plates 9 and the retaining plates 43 are connected to one another both positively and non-positively via the retaining screw 42.

b) Recording the dilations:

If the device acts as a floating bearing, there is 27 between the screw and the groove collar 25 belonging to it, a game which allows the leg plate 9 to slide with its guide rail 18 in the receiving groove 24 in the longitudinal direction 6. The dilatations are absorbed by the device through such sliding movements of the leg plates 9.

Reference numerals

1

wall

2nd

console

3rd

Post profile

4th

Angle plate

5

Ceiling tile

6

Longitudinal direction

7

Cross direction

8th

Wall plate

9

Thigh plate

10th

Mounting nut

11

Anchor pins

12th

Wall plate slot

13

Wall face

14

Free side

15

Direction of repulsion

16

Thigh plate outside

17th

End of assembly

18th

Guide rail

19th

Head side

20th

Through opening

21

Setting thread

22

Ledges

23

Inner flanks

24th

Groove

25th

Grooved collar

26

Wall plate length

27

Set screw

28

Set screw head

29

Support disc

30th

Outer flank

31

Safety bolt

32

Bisector

33

Escape line

34

Beads

35

Fixing projections

36

Thigh plate free ends

37

Inner thigh plate

38

Hollow cross section

39

Leg plate elongated hole

40

Cross hole

41

Cross sleeve

42

Retaining screw

43

Retaining plate

44

Effective area

45

Rib

46

Zahntal

47

Clamping surface

48

Through hole

49

Clamping nut

50

Central longitudinal axis

Claims (23)

1. A fastening bracket (2) for the alignable fixing on the building side of post sections (3) of a building facade,

   - with a wall plate (8) having at least one slot (12) extending in the horizontal direction,

   - with two side plates (9) projecting substantially at right angles from the wall plate (8), for receiving the posts, and

   - with a device for fixing the post sections (3), carried by the side plates (9),
      characterized by the following features:

   a) on the wall plate (8) there extend two receiving grooves (24) in the longitudinal direction (6),

   b) the side plates (9)

   aa) each carry a nose-type guide rail (18) and

   bb) are traversed by at least one side plate slot (39) each, whose longitudinal axis extends in the projecting direction (15),

   c) the guide rails (18) are inserted into the receiving grooves (24) for ensuring the displacement facility in the longitudinal direction (6) and the facility for fixing the side plates (9) on the wall plate (8),

   d) the fixing device is at least

   aa) one pair of slots formed by two side plate slots (39) lying opposite each other, and

   bb) one holding bolt (42) traversing the post section (3) in the transverse direction (7), which section is inserted between the side plates (9).
2. A device according to claim 1,
      characterized in that
   from a free side (14) of the wall plate (8) remote from a wall (1), there project two cheek-type projections (22) extending in the longitudinal direction (6) of the wall (1) and pointing in the projecting direction (15).
3. A device according to one or more of the preceding claims,
      characterized in that
   the projections (22) extend over the whole length (26) of the wall plate (8) extending in the longitudinal direction (6), and that the receiving grooves (24) are formed in their inner flanks facing each other.
4. A device according to one or more of the preceding claims,
      characterized in that,
   on their outer sides (16), the side plates (9) carry nose-type guide rails (18) in the zone of their mounting ends (17) facing the wall (1) and overlapped by the projections (22).
5. A device according to one or more of the preceding claims,
      characterized in that
   with their guide rails (18) extending in the longitudinal direction (6) over the whole outer side (16) of the side plate and projecting in the transverse direction (7), the side plates (9) lie in the receiving grooves (24), being surrounded as by claws.
6. A device according to one or more of the preceding claims,
      characterized in that
   each guide rail (18) has on its top side (19) delimiting it in the longitudinal direction (6), a passage opening (20) extending in the longitudinal direction (6), with a formed-in setting thread (21).
7. A device according to one or more of the preceding claims,
      characterized in that
   a setscrew (27), screwed in the longitudinal direction (6) into the setting thread (21) and bearing by means of a bearing disk (29) on the top sides (19) of the projections (22), projects in the longitudinal direction (6) from the receiving grooves.
8. A device according to one or more of the preceding claims,
      characterized in that
   the outer flanks (30) of the projections (22) and the respective enclosed guide rail (18) have openings lying in an alignment line (32) and extending approximately in the transverse direction (7).
9. A device according to one or more of the preceding claims,
      characterized in that
   a securing bolt (31), projecting right into the passage opening (20), is inserted in the openings.
10. A device according to one or more of the preceding claims,
       characterized in that
    the wall plate (8) is connected by means of an angle plate (4) to the wall (1) or the sealing plate (5).
11. A device according to one or more of the preceding claims,
       characterized in that
    the sides and the points for fixing the angle plate (4) to the wall plate (8) on the one hand, and the points for fixing the angle plate (4) to the wall (1) on the other hand, are disposed at right angles to each other.
12. A device according to one or more of the preceding claims,
       characterized in that
    the trough-shaped receiving grooves (24) have a substantially C-shaped cross-section extending in the same plane as the transverse direction (7) and the projecting direction (15).
13. A device according to one or more of the preceding claims,
       characterized in that
    the substantially C-shaped cross-section has beads (34) extending in the cross-sectional direction.
14. A device according to one or more of the preceding claims,
       characterized in that
    the guide rails (18) have a substantially C-shaped cross-section extending in the same plane as the transverse direction (7) and the projecting direction (15), and slide in the receiving grooves (24) in the longitudinal direction (6).
15. A device according to one or more of the preceding claims,
       characterized in that
    the guide rails (18) have fixing projections (35) reaching into the beads (34) of the receiving groove (24).
16. A device according to one or more of the preceding claims,
       characterized in that
    the outer sides (16) of the side plates are shaped in their zones that are not overlapped by the projections (22).
17. A device according to claim 10,
       characterized in that
    the profiled shape on the outer side (16) of the side plates is designed as a toothed surface extending in the longitudinal direction (6).
18. A device according to one or more of the preceding claims,
       characterized in that
    one holding plate (43) each, traversed by the holding bolt with a precise fit in a through bore (48), is mounted against the outer sides (16) of the side plates in the zone of the slot (39).
19. A device according to one or more of the preceding claims,
       characterized in that
    the holding plate (43) has on its active face (44) facing the outer sides (16) of the side plates, a profiled shape corresponding to the profiled shape of the outer side (16) of the side plates.
20. A device according to claim 14,
       characterized in that
    the profiled shape of the active face (44) is a toothed surface extending in the longitudinal direction (6).
21. A device according to one or more of the preceding claims,
       characterized in that
    the profiled shapes of the outer side (16) of the side plates and of the active faces (44) of the holding plate (43), offset with respect to each other, engage in each other being secured against displacement with respect to each other, with a form fit in the manner of a pair of gear wheels that mesh with each other.
22. A device according to one or more of the preceding claims,
       characterized in that
    the holding bolt passing through the post section (3), the side plates (9) and the holding plates (43) in the transverse direction (7) is a holding screw (42) inserted in a transverse sleeve (41) and being pretensioned by a tensioning nut (49).
23. A device according to one or more of the preceding claims,
       characterized in that
    in the assembled state, the holding screw (42) combines the post section (3), the side plates (9) and the holding plates (43) into a braced unit held together by a form fit and force fit.

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