EP0475031A1 - Facade - Google Patents

Abstract

The invention relates to a facade having a supporting framework of mullions (1) and transoms which are each connected via a plastic connecting part (2) to weather-side covering profiles (3). To improve such a facade, according to the invention essentially the following features are proposed: - the plastic connecting part (2) consists of a plurality of connecting elements which are longitudinally spaced from one another and are equipped with spring tongues which form a releasable coupling and can be released from their locking position from outside by an inserted tool; - a separate panel-element carrier, assigned in each case to two adjacent transoms and each having a bearing surface for the panel elements (4) thereof, is fixed between the connecting elements (2) at the intersection between mullion (1) and transom. <IMAGE>

Description

The invention relates to a facade wall with a supporting frame made of vertical posts and between inserted bars, which together form framework fields for receiving one plate element, e.g. a glazing and / or a panel, form and are equipped on the weather side with cover profiles which, like the mullion and transom, each have a contact fold for the clamping edge of the assigned plate element and are connected to the mullion or transom via a plastic connecting part which connects with it Both ends are fixed in a groove of the post or transom and the associated cover profile running in the longitudinal direction of the profile.

Such a facade wall can be found in DE-A1-30 40 642. The invention has for its object to simplify such a facade wall in terms of its structure and the devitrification options.

• a) Das Kunststoffverbindungsteil besteht aus mehreren mit Längsabstand voneinander angeordneten, aus Kunststoff hergestellten und einen flachen Körper aufweisenden Verbindungselementen;
• b) das in die Nut des Riegel-Abdeckprofils eingreifende Ende jedes Verbindungselementes weist eine lösbare Kupplung bildende Federzungen auf, die mit je einer Rastnase bestückt sind, die in Kupplungsstellung über die Außenkontur des Körpers vorstehen und die hinterschnitten ausgebildete Nut beidseitig verriegelnd hintergreifen;
• c) jede Federzunge ist gegen die Wirkung einer in einen inneren Hohlraum des Körpers ragende Gegenfeder in diesen Hohlraum hineinverschwenkbar in eine Entkupplungsstellung, in der die Rastnase zumindest weitgehend innerhalb der Außenkontur des Körpers liegt;
• d) in einer Entkupplungsstellung wird die Federzunge durch die das freie Ende der Federzunge hintergreifende Gegenfeder automatisch arretiert;
• e) das freie Ende der Federzunge ist so angeordnet, daß es von einem zwischen Plattenelement und Anlagefalz des Abdeckprofils eingeschobenem Werkzeug beaufschlagbar ist;
• f) im Kreuzpunkt zwischen Pfosten und Riegel ist zwischen den Verbindungselementen ein separater Plattenelementträger befestigt, der jeweils zwei benachbarten Riegeln zugeordnet ist und je eine Auflagefläche für deren Plattenelemente aufweist.

This object is achieved according to the invention by the following features:

• a) The plastic connecting part consists of several connecting elements arranged at a longitudinal distance from one another, made of plastic and having a flat body;
• b) the end of each connecting element engaging in the groove of the bolt cover profile has a releasable coupling spring tongues, each of which is equipped with a locking lug, which protrude beyond the outer contour of the body in the coupling position and engages behind the undercut groove in a locking manner on both sides;
• c) each spring tongue can be pivoted against the action of a counter spring projecting into an inner cavity of the body into this cavity into a decoupling position in which the latching lug lies at least largely within the outer contour of the body;
• d) in a decoupling position, the spring tongue is automatically locked by the counter spring engaging behind the free end of the spring tongue;
• e) the free end of the spring tongue is arranged so that it can be acted upon by a tool inserted between the plate element and the contact fold of the cover profile;
• f) at the cross point between the mullion and transom, a separate plate element carrier is fastened between the connecting elements, each of which is assigned to two adjacent transoms and each has a support surface for its plate elements.

To facilitate the pivoting of the spring tongues into their uncoupling position and e.g. To be able to carry out with a tool, it is expedient if each spring tongue has a nose-shaped or strip-shaped handle which is at a shorter distance from the other end of the connecting element in comparison to the latching nose and projects in the coupling position beyond the outer contour of the body. The handle is therefore outside the assigned undercut groove of the frame component and is therefore freely accessible to a tool.

To optimize the thermal separation, the connecting element is characterized according to the invention by a flat, square or rectangular body which has on its two opposite flat sides each a plurality of spring tongues, each arranged in a row at a distance from one another, each around the opposite row of spring tongues about half a spring tongue distance are arranged offset. Due to the offset arrangement of the spring tongues, the connecting element can be kept very flat, which has a positive effect on the thermal separation. The handling that protrudes on both flat sides of the connecting element can be done with a tool, e.g. a flat iron, act together so that the associated frame component can be removed in a simple manner without destruction.

Due to the inventive design of the plastic connecting part, a suitable carrier surface is missing under the plate-shaped element. Usually, an internal fighter profile with its insulating bars also intervenes in this room. According to the invention, the separate plate element carrier is therefore provided, which can preferably be screwed into the respective grooves of the post receiving one end of the connecting elements and the two bars arranged to the left and right thereof. It is advantageous if the screw connection can be tightened from the weather side of the facade. For reasons of strength, it is expedient if the plate element carrier is supported with a leg on a lower bearing surface of the bolt.

Since the connecting element according to the invention can be made very narrow, there is only a small distance between the plate elements arranged next to one another. Normally, the plate element carrier would then be too narrow to be able to bear it on bending. According to the invention it was therefore designed so that the bending moment is converted into a pair of forces, whereby the tension can be taken up by the screws and passed on to the post, while the pressure is passed over the lower bearing surface into the transom and from there into the post . This results in a particularly secure support for the plate element, in particular for insulating glazing.

The plate element carrier is no longer continuously integrated on the profiles, but only used locally, so that material savings result not only in the horizontal but also in the vertical profiles. Since the plate element carrier is no longer bound to the extrusion profile in terms of production technology, it is arranged according to the invention at the cross point between the mullion and the transom. The dead weight of the panel element is thus introduced directly into the vertical post.

It is also advantageous if the transoms run in the post and are connected to the post in a vapor-tight manner by means of a shock sleeve arranged here. Sealing compounds are therefore not required. This applies above all to the cross point, where the use of molded parts made of elastic plastic means that wet sealing can be omitted.

The shock sleeve according to the invention fulfills several tasks: it forms in the area where the transom enters the post, with its U-profile running to the rear, in extension of the actual seal for the plate element, the vapor seal and at the same time the aesthetic covering of the transom-transom transition . Usually, the gap formed at the mullion-transom joint varies, for tolerance reasons and for reasons of thermal expansion. To bridge these column widths, massive butt collars with a width of 5 to 8 mm are usually required. Since, according to the invention, the bolt runs in the post, there is no butt joint. The movement and tolerance compensation takes place in the mullion-transom transition in the rebate of the mullion, and the covering of the transition is solved with a narrow face width of no more than 1.5 mm.

Further features of the invention are the subject of the dependent claims and are explained in connection with further advantages of the invention using an exemplary embodiment.

• Figur 1 in Vorderansicht einen Kreuzpunkt eines Traggerippes (mit abgenommenen Abdeckprofilen);
• Figur 2 die Darstellung gemäß Figur 1 in Seitenansicht;
• Figur 3 einen Querschnitt gemäß der Linie A-A in Figur 1;
• Figur 4 die Darstellung gemäß Figur 1, jedoch komplettiert durch Abdeckprofile;
• Figur 5 in einer Darstellung gemäß Figur 2 den Gegenstand der Figur 4;
• Figur 6 einen Schnitt gemäß der Linie B-B in Figur 5;
• Figur 7 einen Schnitt gemäß der Linie C-C in Figur 4;
• Figur 8 in vergrößertem Maßstab den in Figur 6 dargestellten Horizontalschnitt durch einen Pfosten der Pfosten-Riegel-Fassade gemäß den Figuren 1 - 7;
• Figur 9 die Darstellung gemäß Figur 5 in vergrößertem Maßstab;
• Figur 10 in schematischer und Explosionsdarstellung einen Ausschnitt aus einem Horizontalschnitt durch den Pfosten mit zwei in den Pfosten laufenden Riegeln;
• Figur 11 in vergrößertem Maßstab in Vorderansicht eine Stoßmanschette für den in den Pfosten einlaufenden Riegel;
• Figur 12 die Darstellung gemäß Figur 11 in Stirnansicht;
• Figur 13 die Darstellung gemäß Figur 11 in Draufsicht;
• Figur 14 ein Plattenelementträger in Draufsicht;
• Figur 15 die Darstellung gemäß Figur 14 in Vorderansicht;
• Figur 16 einen Schnitt gemäß 1-1 in Figur 14;
• Figur 17 einen Schnitt gemäß 2-2 in Figur 14;
• Figur 18 einen Schnitt gemäß 3-3 in Figur 14;
• Figur 19 einen Schnitt gemäß 4-4 in Figur 14;
• Figur 20 einen Schnitt gemäß 5-5 in Figur 14;
• Figur 21 ein in Figur 8 in Draufsicht dargestelltes Verbindungselement in Seitenansicht;
• Figur 22 einen Schnitt gemäß der Linie A-A in Figur 21;
• Figur 23 einen Schnitt gemäß der Linie B-B in Figur 21;
• Figur 24 einen Schnitt gemäß der Linie C-C in Figur 21;
• Figur 25 einen Schnitt gemäß der Linie D-D in Figur 21;
• Figur 26 einen Schnitt gemäß der Linie E-E in Figur 25 und
• Figur 27 ein Detail aus der Figur 22 jedoch mit arretierter Federzunge.

In the drawing, an exemplary embodiment of the invention is shown. Show it:

• Figure 1 in front view a cross point of a supporting structure (with cover profiles removed);
• Figure 2 shows the representation of Figure 1 in side view;
• 3 shows a cross section along the line AA in Figure 1;
• Figure 4 shows the representation of Figure 1, but completed by cover profiles;
• FIG. 5 shows the subject of FIG. 4 in a representation according to FIG. 2;
• 6 shows a section along the line BB in Figure 5;
• 7 shows a section along the line CC in Figure 4;
• 8 shows, on an enlarged scale, the horizontal section shown in FIG. 6 through a post of the mullion-transom facade according to FIGS. 1-7;
• FIG. 9 shows the illustration according to FIG. 5 on an enlarged scale;
• Figure 10 is a schematic and exploded view of a section of a horizontal section through the post with two bars running in the post;
• FIG. 11 shows, on an enlarged scale, a front view of a push sleeve for the bolt entering the post;
• FIG. 12 shows the representation according to FIG. 11 in front view;
• FIG. 13 shows the view according to FIG. 11 in a top view;
• FIG. 14 shows a plate element carrier in a top view;
• FIG. 15 shows the representation according to FIG. 14 in a front view;
• FIG. 16 shows a section according to 1-1 in FIG. 14;
• FIG. 17 shows a section according to 2-2 in FIG. 14;
• FIG. 18 shows a section according to 3-3 in FIG. 14;
• FIG. 19 shows a section according to 4-4 in FIG. 14;
• FIG. 20 shows a section according to 5-5 in FIG. 14;
• FIG. 21 shows a side view of a connecting element shown in FIG. 8 in plan view;
• FIG. 22 shows a section along the line AA in FIG. 21;
• FIG. 23 shows a section along line BB in FIG. 21;
• FIG. 24 shows a section along the line CC in FIG. 21;
• FIG. 25 shows a section along the line DD in FIG. 21;
• Figure 26 is a section along the line EE in Figure 25 and
• Figure 27 shows a detail from Figure 22 but with the spring tongue locked.

The facade wall shown in Figures 1-9 has a support structure, which consists of vertical posts 1 and between them inserted and connected to them at right angles to bars 23, which together form skeleton fields for receiving a plate element 4, for example a glazing Form and / or form a panel and are equipped with cover profiles 3 and 24 on the weather side. Posts 1, transom 23 and cover profiles 3, 24 each have a contact fold 1 a, 23a, 3a and 24a for the clamping edge of the associated plate element 4. The cover profiles 3, 24 are with post 1 or transom 23 via a plastic connecting part connected, which with its two ends in each case in the longitudinal profile groove 5, 6; 25, 26 of the post 1 or bolt 23 and the associated cover profile is fixed.

FIG. 8 shows, on an enlarged scale, a horizontal section through the post 1, which is preferably formed by an aluminum profile, and which is connected to the cover profile 3 via a connecting element 2, which forms the plastic connecting part and takes over the static connection function, and which likewise preferably consists of an aluminum profile. Between insulating posts 1 and cover profile 3, two insulating glazings are clamped as plate elements 4. Posts 1 and cover profile 3 each have the mutually facing, undercut on both sides, extending in the longitudinal direction of the profile, grooves 5 and 6, respectively, for the positive reception of one end of the connecting element 2.

The connecting element 2 shown in more detail in FIGS. 21-27 is made of plastic and has a flat body 7, which is at least approximately square according to FIG. 21 and is equipped at its lower end in the figures with spring tongues 9 forming a releasable coupling. These spring tongues 9 are arranged on the two opposite flat sides 8 of the body 7 in a row with spacing next to each other, the two opposite rows of spring tongues being offset from one another by approximately half a spring tongue distance, so that each spring tongue is located between two opposite ones Spring tongues is arranged.

Each spring tongue 9 can be pivoted about its spring tongue foot 10 lying at the extreme end of the body 7 into an inner cavity 11 of the body 7 into a decoupling position, specifically against the action of a counter spring 12 projecting into this cavity 11.

Each spring tongue 9 is equipped with a latching lug 13 which, in the coupling position of the spring tongue 9, projects beyond the outer contour of the body 7 and engages behind the associated undercut groove 6 of the cover profile 3 in a locking manner (see figure

8th). For decoupling, each spring tongue 9 is pressed against the action of the counter spring 12 acting on it into said cavity 11 until the counter spring 12 engages behind the free end of the spring tongue 9 in a locking manner. To clearly

According to the definition of this decoupling position, a recess 14 is provided at the free end of each spring tongue 9, into which the counter spring 12 can engage in a locking manner (FIG. 27). In this decoupling position, the locking lug 13 is at least largely within the outer contour of the body 7, so that the connecting element 2 can be pulled out of the groove 6 of the cover profile 3 with its one end.

In order to simplify the pushing-in of the spring tongues 9 into their unlocking position, each spring tongue 9 has a nose-shaped or strip-shaped handle 15, which has a shorter distance from the other end of the connecting element 2 in comparison to the latching nose 13 and which is shown in FIG Coupling position protrudes beyond the outer contour of the body 7. This makes it possible, without optical control and complex manipulation, for example with flat-nose pliers, to simultaneously press the opposing spring tongues 9 into their unlocked position in the cavity 11 of the connecting element 2, where then all spring tongues 9 are automatically locked by the associated counter springs 12.

The other, in the figures, the upper end of the connecting element 2 is designed as a resilient fork, the two spring tines 16 of which can be pressed resiliently against one another at their free end each have a detent 17 projecting in a spread coupling position over the outer contour of the body 7, which in the coupling position has the associated one Grip undercut groove 5 of post 1 on both sides. To establish the connection, the connecting element 2 is inserted with its fork tines 16 into the groove 5, the bevels provided on the latching lugs 17 leading to a compression of the fork tines 16 when the connecting element 2 is inserted, which automatically reach the locking position when the groove bottom is reached due to their inherent elasticity rebound. To lock this coupling position, bolts 18 are inserted between the fork tines 16. The bolts 18 can have a longitudinal toothing and can be fixed in their locking position by local brackets.

The locking of the end of the connecting element 2 equipped with the spring tongues 9 with the groove 6 of the cover profile 3 also takes place simply by inserting the connecting element 2, whereby the spring tongues 9 provided with run-up bevels are pressed inwards in order to be able to rebound after reaching the bottom of the groove. This pressing of the spring tongues 9 takes place against the action of the counter springs 12, but only so far into the cavity 11 that the counter springs 12 the free edge of the Fe the tongue 9 can not reach behind locking. To reduce the cross-section, 2 hollow chambers 21 are arranged in the body 7 of the connecting element. In FIG. 21, the massive separating webs between the individual spring tongues 9 are identified by the reference number 22.

The connecting element 2 combines both a thermal separation and a static connection of the metal components 1, 3 without generating new cold bridges. Nevertheless, it is an easily detachable connection that can be dismantled e.g. of the cover profile 3 without destruction. Although the spring tongues 9 engage behind the undercut groove 6 on both sides, i.e. for decoupling the spring tongues 9 provided on both flat sides 8 of the connecting element 2 must be pressed into the body 7, this body can be made very flat due to the offset arrangement of the spring tongues 9 and has in a special embodiment has a thickness of only 11.5 mm. This enables very favorable values for the thermal separation of the frame profiles.

Since the handle 15 of each spring tongue 9 lies outside the groove 6, the handles 15 are easily accessible to a tool.

According to FIGS. 1 and 3, a separate plate element carrier 27 is fastened between the connecting elements 2 at the cross point between the post 1 and the bar 23, each of which is assigned to two adjacent bars 23 and each has a support surface 27a, 27b for the plate element 4 thereof. FIG. 9 shows in a vertical section the arrangement of this plate element carrier 27, the design of which can be seen in detail in FIGS. 14 to 20. Accordingly, the plate element carrier 27 is supported with a leg 28 on a lower bearing surface 29 of the bolt 23. The plate element carrier 27 is approximately Z-shaped in cross section and engages with stiffening ribs 30 in the grooves 25 of the bolts 23.

FIGS. 10-13 show that the transoms 23 run into the post 1 and are connected to the post 1 in a vapor-tight manner by means of a shock sleeve 31 arranged here.

Claims (13)

1. Facade wall with a supporting frame made of vertical posts (1) and bars (23) inserted between them, which together form skeleton fields for receiving a panel element (4), for example glazing and / or a panel, and on the weather side with cover profiles (3, 24) which, like the posts (1) and transoms (23), each have a contact fold (3a, 24a; 1a, 23a) for the clamped edge of the assigned plate element (4) and with the post (1) or Bolts (23) are connected via a plastic connecting part, which has both ends in a groove (5, 6; 25, 26) of the post (1) or bolt (23) and the associated cover profile (3, 24) running in the longitudinal direction of the profile ) is defined, characterized by the following features: a) The plastic connecting part consists of several connecting elements (2) arranged at a longitudinal distance from one another, made of plastic and having a flat body (7); b) in the groove (26) of the bolt cover profile (24) engaging end of each connecting element (2) has a detachable coupling spring tongues (9), each equipped with a locking lug (13) which in the coupling position on the Project the outer contour of the body (7) and engage behind the undercut groove (6) in a locking manner on both sides; c) each spring tongue (9) can be pivoted against the action of a counter spring (12) projecting into an inner cavity (11) of the body (7) into this cavity (11) into a decoupling position in which the latching lug (13) is at least largely within the outer contour of the body (7) lies; d) in a decoupling position, the spring tongue (9) is automatically locked by the counter spring (12) engaging behind the free end of the spring tongue; e) the free end of the spring tongue (9) is arranged such that it can be acted upon by a tool inserted between the plate element (4) and the contact fold (3a) of the cover profile (3); f) at the cross point between the post (1) and transom (23) between the connecting elements (2) a separate plate element carrier (27) is attached, each of which is assigned to two adjacent transoms (23) and each has a support surface (27a, 27b) for them Has plate elements (4). !. Facade wall according to Claim 1, characterized in that each spring tongue (9) of the connecting element (2) has a nose-shaped or strip-shaped handle (15) which is a shorter distance from the other end of the connecting element (2) compared to the latching lug (13). has and protrudes in the coupling position over the outer contour of the body (7). 3. Facade wall according to claim 1 or 2, characterized in that the body (7) of each connecting element (2) on its two opposite flat sides (8) each have a plurality of spring tongues (9) which are arranged next to one another in a row at a distance relative to the opposite row of spring tongues are each offset by about half a spring tongue distance. 4. Facade wall according to claim 1, 2 or 3, characterized in that the pivoting of the spring tongue (9) of a connecting element (2) allowing spring tongue base (10) at the weather-side end of the connecting element (2). 5. Facade wall according to one of the preceding claims, characterized in that the room-side end of each connecting element (2) is designed as a resilient fork, the two resiliently pushable fork tines (16) at their free end each in a spread coupling position over the outer contour of the body (7) of the connecting element (2) have protruding locking lugs (17) which engage behind the undercut groove (5) of the post (1) in a locking manner on both sides. 6. Facade wall according to claim 5, characterized in that for locking the coupling position of the connecting elements (2) on the post (1) between the two prongs (16) of each connecting element (2) at least one bolt (18) is inserted. 7. Facade wall according to claim 6, characterized in that the bolt (18) is integrally formed with the connecting element (2). 8. Facade wall according to one of the preceding claims, characterized in that each plate element carrier (27) in the one end of the connecting elements (2) receiving grooves (5, 25) of the post (1) and the two bars arranged to the left and right thereof (3) is screwed. 9. facade wall according to claim 8, characterized in that the screw connection from the weather side of the facade can be tightened. 10. Facade wall according to one of the preceding claims, characterized in that the plate element carrier (27) is supported with a leg (28) on a lower bearing surface (29) of the bolt (23). 11. Facade wall according to one of the preceding claims, characterized in that the plate element carrier (27) is approximately Z-shaped in cross section. 12. Facade wall according to one of the preceding claims, characterized in that the plate element carrier (27) with stiffening ribs (30) engages at least in the said grooves (25) of the bars (23). 13. Facade wall according to one of the preceding claims, characterized in that the bars (23) run in the post (1) and are connected in a vapor-tight manner to the post (1) by means of an impact sleeve (31) arranged here.

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