CN1237241C - Facade cladding frame - Google Patents

Abstract

A facade cladding frame (1) comprises an upper and a lower frame member (2, 3) interconnected by two side frame members (4). A lower hanging bracket (10) has an abutment surface (16) for supporting the frame, and the frame is provided with at least one resilient member (21) with an engagement section (30) for engaging with an upper hanging bracket (9). The resilient member is shaped like an elongated hoop (21) extending along one of the frame members (2), one end of the hoop (21) being connected with the frame (1), the engagement section (30) being located at the other end of the hoop (21). The lower hanging brackets (10) have means for retaining a lower part of the frame in a direction substantially at right angles to the facade (8).

Description

cladding structure

technical field

The invention relates to a facade cladding structure for suspending panel elements inserted into a facade structure, said structure comprising an upper structural element and a lower structural element interconnected by structural elements on both sides, and at least one The upper and lower suspension brackets are fixedly installed on the surface, and the lower suspension bracket has an adjacent surface of a support structure. The engaging part is elastically loaded towards a far position and can be displaced from the far position against the elastic load to another position closer to the structure than the far position.

Background technique

German Patent No. DE 19603433 describes a device for providing temporary holding force when panel elements are suspended from a façade. The panel elements are mounted directly or inserted into the structure between retaining elements arranged on the façade, the lower edge of said element rests against the lower retainer, so that its upper edge turns under an upper retainer, one wedged into the element The elastic element of the upper edge engages with the upper holder and temporarily holds the element. The elastic element is a thin steel sheet bent into an acute-angled shape and clamped to the upper edge of the panel element in such a way that, viewed in the longitudinal direction of the upper edge, it forms a V-shaped element, a strut of which Clamped to the upper edge of the panel element and the other strut has a free end projecting obliquely upwards with respect to the upper edge and facing the façade away from the side of the panel element. When the upper part of the panel element is rotated under the upper retainer, the free strut of the elastic element is first pressed down by the protrusion protruding downward from the retainer, and the strut springs up at the rear of the protrusion, thus temporarily pushing the upper The edges remain in place. For final retention of the panel elements, final retention brackets are mounted by bolts on the outer sides of the upper and lower holders, the brackets protruding above the panel elements and holding them in position. Finally, the bolts are concealed in the final retaining bracket by extrusion-molded covers.

However, in the known arrangements, it is disadvantageous that the suspension of the panel elements on the façade is time-consuming, especially since the final clamping of the elements is by means of bolts and subsequent mounting of the molded cover. It is especially disadvantageous that the disassembly of the panel element is very problematic, since the elastic element is relatively difficult to reach and is even hidden in the gap between the upper edge of the panel element and the upper holder, so for the purpose of disengaging from the engagement with the holder , the compression of the components is almost impossible, even with a suitable tool.

Contents of the invention

The object of the present invention is to provide a facade cladding structure for installation on a facade, the installation and disassembly of the structure are both simpler and faster than the existing structures.

With this in mind, the façade cladding structure of the present invention is characterized in that a resilient element is shaped like an elongated strip, having a first end and a second end, said resilient element being adjacent to one of the structural elements and along said structural element The first end of the belt is connected to the structure, the engaging part is arranged at the second end of the belt, and the lower suspension bracket has a device for keeping the lower part of the structure from being displaced in a direction approximately perpendicular to the facade.

This allows for simple final clamping of the façade cladding structure to the façade in just one operation by supporting the lower part on the abutment surface of the lower suspension bracket and then turning the upper part of the structure inwards towards the upper suspension bracket It is possible that the snapping portion of the elongated strap is pressed against the structure to pass under the upper suspension bracket and that the snapping portion eventually springs back into its final snapping state with the bracket.

In the upper part of the structure as a subsequent installation of the strip of elongated shape and its installation along the structural element, the subsequent installation of the final clamping without additional holding brackets is made possible by means of elastic elements in the form of a belt, in this way, due to the The high elastic force can be balanced out during installation, the strap can be designed with the necessary elastic force for the final hold, due to the elongated shape and the positioning of the strap it is designed to be manually pressed, snapped in by hand or with a suitable tool It is possible to press the joint to the direction of the structure.

Final holding in the lower part of the structure is ensured by the adjoining faces of the lower suspension brackets and the means for holding this part of the structure in the direction outwards from the facade. Removal of the structure is as simple as installation, since the snap-in part of the strap can be easily pressed out of its engagement with the upper suspension bracket, for example, by inserting a suitable tool from the front of the structure, i.e. from the elongated strap side.

In a preferred embodiment, the elongated strip is bent from a flat elastic strip such that one end of the strip forms a clamping portion that is clamped flat against the structure, the other end of the strip forms a snap-fit portion, and the clamping portion The engaging portion and the engaging portion are connected to each other through an intermediate portion, and an obtuse angle is formed between the intermediate portion and the clamping portion. This makes it possible in a simple manner to obtain a suitably high elastic force holding the structure on the façade, since the part of the strip protruding from the structure is elastically deformed by pressing the catch against the structure.

In an advantageous embodiment, the catch of the strap forms a top facing away from the structure and is formed by bending the elastic strap. This ensures a definite engagement of the catch of the strap with the suspension bracket, a more stable holding of the structure on the façade is obtained due to the fact that the catch has a limited width in the longitudinal direction of the strap, so that the structure does not To move, for example under the influence of wind.

At its snap part, the strap can have an indentation facing away from the structure, which is formed by bending the elastic strap. The indentation forms a stable abutment for a tool, such as a screwdriver, that can be used to press the snap of the strap against the structure during mounting and dismounting of the structure.

In addition, the strap can have a free end bent away from the structure at the catch. Said free strap end may protrude slightly from the end of the suspension bracket facing away from the structure, through which the suspension bracket and the strap are mutually joined, and the free strap end then forms an easy detachable and for the above-mentioned purpose for pressing the strap during the dismantling of the structure. Tools are especially suitable for abutment.

In an advantageous embodiment, the upper suspension bracket has a recess for accommodating the engaging part of the elongated strap, said recess being formed by a bottom and two side walls, having a conical cross-section so that both sides of the bottom The distance between the side walls is smaller than the width of the engaging portion, and the opposite bottom is larger than the width of the engaging portion. Where the flat strip engages lengthwise with the groove, the edge of the strip is wedged between the two side walls of the groove, so that a particularly stable engagement is achieved, thus resulting in a better retention of the structure.

In a more preferred embodiment, the lower suspension bracket has two opposing abutment surfaces for mounting approximately parallel to the façade, after the structure has been suspended approximately parallel to the façade, corresponding to those on the lower part of the structure. The upper and lower abutment surfaces of the abutment surfaces abut and are tucked between the abutment surfaces of the suspension bracket. This prevents displacement of the structure parallel to the façade after suspension, while it compensates for any inaccurate installation of the suspension brackets on the façade, both horizontally and vertically.

In an advantageous embodiment in terms of manufacture, all structural elements have the same cross-section and are made by extrusion, the upper and lower abutment surfaces of the lower part of the structure being formed by flanges formed on the extrusions of the structural elements.

The structure may also have a circumferential bead facing each other when the structure is installed, said bead protruding below the protrusion of the lower suspension bracket. This ensures that further upward displacement of the structure is prevented.

The upper hang bracket may also include a support block of resilient material for abutting against the circumferential bead on the structure so that the upper hang bracket may be held in place for the belt to snap into place in the groove of the hang bracket. Correct positioning. Moreover, the final suspension is also more stable.

Description of drawings

The present invention is described in more detail by specific embodiments and with reference to schematic diagrams, wherein:

Fig. 1 and Fig. 2 are respectively the three-dimensional vertical sectional view of the facade cladding structure of the present invention after the process of the structure being installed on the facade and the structure finally hanging on the facade;

Figure 3 is a sectional view parallel to the facade of the installed facade cladding structure shown in Figure 2, with the actual structural elements indicated by dashed lines;

Fig. 4 is the side view of the elastic belt in the invention;

Figure 5 is a top oblique view of the elastic band shown in Figure 4 installed on a portion of the facade cladding structure;

Figure 6 is a schematic illustration of the elastic band of Figure 4; and

7 and 8 are schematic views of the upper and lower suspension brackets, respectively.

Detailed ways

Figures 1 and 2 show a facade cladding structure 1 comprising an upper structural element 2, a lower structural element 3 and two side structural elements 4, not shown in the figures. The structural elements 2 , 3 , 4 are all cut from extruded aluminum profiles with the same cross-section and mitered to form a rectangular facade cladding structure 1 . In the opening of the structure is inserted a panel element 5, such as a window pane, which is held in the first flange 6 of the facade cladding structure 1 and in the panel molding 7 mounted on the structure. It is worth noting that the structure in the figure is divided in the middle without showing its overall height.

Fig. 2 shows the facade cladding structure 1 installed on a building facade 8, the upper suspension bracket 9 is installed on each upper corner of the facade cladding structure 1 by screws not shown, and the lower suspension A bracket 10 is installed at each lower corner of the facade cladding structure 1 .

The lower suspension bracket 10 has a first flat mounting portion 11 which is mounted flat against the facade by means of screws not shown. A second flange 12 with a hook-shaped cross-section protrudes from the first flat mounting portion 11 to form a U-shaped first groove 13 opening upward. The third flange 14 projecting downwards from the lower structural element 3 of the facade cladding structure 1 is inserted into the first groove 13 with its lower edge 15 abutting against the first bottom 16 of the first groove 13, and The first lower abutment surface 17 facing away from the facade 8 bears against the second lower abutment surface 18 facing the facade 8 inside the first groove 13 on the lower suspension bracket 10 . Furthermore, the lower structural element 3 of the facade cladding structure 1 bears against a projection 19 formed on the lower suspension bracket 10 above the second flange 12 . Furthermore, the lower structural element 3 has a longitudinal bead 20 protruding towards the facade 8, which protrudes below and slightly between the projections 19 of the lower suspension bracket 10 in the installed condition of the structure. Lower positioning, whereby a certain tolerance can be obtained in the vertical direction during installation, while the façade cladding structure 1 is secured against upward displacement, for example by abutting against the protrusion 19, the bead 20 will prevent the Instead, the structure is raised beyond the lower suspension bracket 10 .

At each end, an elongated elastic strip 21 is provided on the upper structural element 2 of the facade cladding structure 1 to engage with a second recess 22 formed on a fourth flange 23 and opening downwards, said first Four flanges 23 horizontally extend outward from the upper edge of the second straight mounting portion 24 of the upper suspension bracket 9 . Fig. 4 shows a side view of an elastic band 21 bent from an anti-corrosion elastic band, showing that the elongated elastic band has a flat clamping portion 25, and the flat clamping portion 25 has The mounting holes 26 are intended to be clamped by blind rivets, not shown, horizontally against the profiled surface 27 of the upper structural element 2 , said profiled surface 27 facing upwards horizontally above the mounting position of the façade cladding structure 1 . At one end of the clamping section 25, the flat strip has a bend 28 so that the strip forms an obtuse angle between the clamping section 25 and an intermediate section 29 which extends obliquely away from the profiled surface 27 of the structural element 2 and, relative to the clamping The portion 25 is bent at a right angle downwards towards the profiled surface 27 , thereby forming a snap-in portion 30 facing away from the top of the structural element 2 to form the elastic band 21 . There is also a right-angled bend in the opposite direction behind the engaging portion 30, thereby forming an indentation 31 for the structural element 2 engaged with the installation tool. After the indentation 31, the elastic band 21 has its outermost end, a convex The exit tab 32 is bent away from the structural element 2 and forms an abutment for an installation tool. FIG. 6 shows a schematic view of the elastic band 21 , and FIG. 5 shows a schematic view of the elastic band 21 installed on the upper structural element 2 .

Elastic strips 21 are installed longitudinally along the structural element 2 , and FIGS. 1 and 2 show the elastic strips during and after installation to the façade cladding structure 1 from an end view perspective. . Fig. 3 also shows the engaging state of the elastic band 21 and the upper suspension bracket 9 in a cross-sectional view, the section is parallel to the facade 8 and passes through the suspension bracket 9, and the facade cladding structure 1 is only indicated by a dotted line. The façade cladding structure 1 is suspended on the façade 8 by positioning the structure in the position shown in FIG. The second flange 12 snaps in and the structure slopes outwards from the facade 8 . The façade cladding structure 1 with the upper structural part 2 is then turned inwards towards the upper suspension bracket 9, the snap-in portion 30 of the elastic band 21 is pressed downwards towards the structural element 2, and is pressed by hand, or with a screwdriver. The tool clamps and engages with the indentation 31 of the belt. Therefore, it can pass through the first side wall 33 of the second groove 22 in the lower part of the fourth flange 23 of the upper suspension bracket 9 . Thus, the façade cladding structure 1 with the upper structural element 2 can be turned under the fourth flange 23 and the snap part 30 of the elastic band is located under the second groove 22, and then the elastic band 21 is released to snap The part elastically moves upward in the second groove 22.

Opposite to the first side wall 33, the second groove 22 has a second side wall 34, which is inclined relative to the first side wall 33, so that the width of the second groove 22 is wider than the band at the second bottom 35. The width of the engaging portion 30 is slightly narrower, and the width of the opening of the second groove 22 is slightly wider than that of the engaging portion 30 , so the engaging portion 30 is wedged into the second groove 22 when the elastic band 21 elastically moves upward. Due to the simultaneous short length of the engaging portion 30 in the longitudinal direction of the second recess 22 , the elastic band 21 fixes the façade cladding structure 1 in the upper suspension bracket 9 in a very stable manner. It can be seen from FIGS. 1 and 2 that, compared to the untensioned state in FIG. 1 , the elastic band 21 is elastically bent downward at the installation position of the structure, so the engaging portion 30 is held in the second groove Within 22.

The dimensions of the lower structural element 3 of the facade cladding structure 1 and the lower suspension bracket 10 are larger so that when the upper structural element 2 is turned into its installation position, the lower structural element 3 is wedged into the lower suspension bracket 10, The second lower abutment surface 18 on the hook-shaped second flange 12 is pressed against the first lower abutment surface 17 on the lower structural element 3 and the first upper abutment surface 40 on the lower structural element 3 is pressed Abuts against the second upper abutment surface 39 of the end of the upper protrusion 19 of the lower suspension bracket 10 . Before wedging, the lower structural element 3 can freely displace in the horizontal first groove 13, which can be seen from FIG. Inside the flange 12 , the structural facade cladding 1 is therefore adjustable laterally relative to the facade 8 before final installation, which makes it possible to compensate for inaccurate installation of the lower suspension bracket 10 in the structural transverse direction.

And, on the outside of the second flat mounting part 24 of the upper suspension bracket 9 and the circular bead 20 on the facade cladding structure 1, an elastic block is installed opposite, such as a rubber block 36, when the structure rotates to its In the installed position, said beads are pressed into rubber stops 36 , as shown in FIG. 2 , thus further stabilizing the suspension of the façade cladding structure 1 on the façade 8 .

It is as easy to install the upper suspension brackets 9, 10 as the facade cladding structure 1, and the structure can also be dismantled, because the engaging portion 30 of the belt can be easily pressed out of the second groove 22 of the upper suspension bracket 9, The upper structural element 2 of the facade cladding structure is thus pivoted away from the suspension bracket 9 and lifted out of engagement with the lower suspension bracket 10 . In order to press down on the snap part 30 of the strap, it is necessary to use a suitable tool, such as a screwdriver, which is inserted above the upper edge 37 of the upper structural element 2 of the structure and engages with the outer free end of the elastic strap 21, said The tool is held in position relative to the belt by the outer crimp tab 32 or possibly engages the indentation 31 . The tool is thus better held in position relative to the elastic band 21 , while by elastic displacement of the band the catch 30 is pressed out of engagement with the second groove 22 to release the facade cladding structure 1. Requiring a small gap between the upper edge 37 of the structure and the lower edge of the installed structure to allow the above-mentioned disassembly by tool insertion, several facade cladding structures 1 can be assembled relatively close to each other. The distance between the structures arranged one above the other can be, for example, 8-15 mm.

Although the façade cladding structure 1 is shown mounted on a vertical façade 8, it is obvious that the façade cladding structure 1 of the present invention can also be mounted to an inclined façade. It can also be seen from the figure that the installation position of the structure on the facade, the upper and lower suspension brackets 9, 10 and the elastic band 21 for installation are all hidden by the circumferential flanges 38 of the structural elements 2, 3, 4. Aesthetically it is a plus.

In general, two upper suspension brackets 9 and two lower suspension brackets 10 are applied, the brackets being positioned at the corners of the structure, for example also at the position of the side structural elements 4 of the structure, more for large structures. Multiple bays are advantageous. The side structural element 4 can be provided with an elastic band 21 for engaging with a bracket corresponding to the upper suspension bracket 9 .

Obviously, the elastic band 21 can be designed in another way than shown; for example, the catch 30 can be formed by an elongated flat part of the band, and the band can also be designed so that one end is hinged to the cladding structure of the facade 1 and is elastically loaded to rotate out of the structure, for example by torsion springs or compression springs.

Claims (10)

1. A facade cladding structure for suspending panel elements inserted in a structure on the facade, said structure comprising upper and lower structural elements connected to each other by structural elements on both sides, at least one The upper and lower suspension brackets on the surface, the lower suspension bracket has an adjoining surface for supporting the structure, and the structure is provided with at least one elastic element with an engaging portion for engaging with the upper suspension bracket , the engaging portion is applied with an elastic load towards a far position and can be displaced from the far position against the elastic load to another position closer to the structure than the far position, characterized in that: The elastic element is shaped as an elongated strip with a first end and a second end, adjacent to one of the structural elements and extending longitudinally along the structural element, the first end of the strip is connected to the structure, and the snap part is arranged on the strip. At the second end, the lower suspension bracket has means for holding the lower part of the structure against displacement in a direction approximately perpendicular to the façade. 2. Facade cladding structure according to claim 1, characterized in that said elongated strip is bent from a flat elastic strip so that one end of the strip forms a clip which is clamped flat to the structure The tight part, the other end of the belt constitutes the clamping part, and the clamping part and the clamping part are connected to each other through an intermediate part, and an obtuse angle is formed between the intermediate part and the clamping part. 3. Facade cladding structure according to claim 2, characterized in that the snap-in portion of the strip forms a top facing away from the structure, said top being formed by bending the elastic strip. 4. Facade cladding structure according to claim 2, characterized in that at the snap-in portion, the strip has a notch facing away from the structure, said notch being formed by bending the elastic strip. 5. Facade cladding structure according to claim 2, characterized in that at the snap-in the strip has a free end which is bent in a direction away from the structure. 6. The facade cladding structure according to any one of the preceding claims, wherein the upper suspension bracket has a groove for accommodating the engaging portion of the elongated belt, and the groove is composed of the bottom and two The side wall is formed and has a tapered cross-section, so that the distance between the two sides of the bottom is smaller than the width of the engaging portion, and the width of the opposite bottom is larger than the width of the engaging portion. 7. The facade cladding structure according to any one of claims 1-5, wherein the lower suspension bracket has two opposite adjoining surfaces for installation substantially parallel to the facade, at approximately After the parallel suspended structures, the upper and lower abutment surfaces of the lower part of the structure corresponding to these abutment surfaces abut against the corresponding abutment surfaces on the suspension bracket and are jammed between them. 8. Facade cladding structure according to claim 7, characterized in that all structural elements have the same cross-section and are produced by extrusion, the upper and lower adjoining surfaces in the lower part of the structure are arranged at the extrusion of the structural elements flange composition. 9. Facade cladding structure according to claim 7, characterized in that when the structure is mounted thereon, the structure has a circumferential bead facing the facade, said bead resting on the lower suspension bracket Protruding below the protrusion. 10. Facade cladding structure according to claim 9, characterized in that the upper suspension bracket has a support block of elastic material for abutment with the circumferential bead on the structure.

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