EP3044389A1

EP3044389A1 - Mullion-transom structure

Info

Publication number: EP3044389A1
Application number: EP14771242.6A
Authority: EP
Inventors: Maik NIEHAUS; Jürgen Meyer; André Stockhausen
Original assignee: Schueco International KG
Current assignee: Schueco International KG
Priority date: 2013-09-13
Filing date: 2014-09-12
Publication date: 2016-07-20
Anticipated expiration: 2034-09-12
Also published as: EP3044389B1; CN105531429B; CN105531429A; WO2015036544A1; DE202013104191U1; PL3044389T3; US20160222653A1; DK3044389T3

Abstract

The invention relates to a mullion-transom structure, especially for façades or glass roofs, comprising a supporting profile (1) to which at least one infill element (5) is fastened, an insulating strip (10, 20) being arranged on an end face of the infill element (5), being held on the supporting profile (1) and having at least one hollow chamber (22), the insulating strip (10, 20) having at least one mobile cover by means of which the hollow chamber (22) of the insulating strip (10, 20) can be closed. The design according to the invention allows an optimized adaptation of heat insulation.

Description

Post and beam construction

The present invention relates to a mullion and transom construction, in particular for facades or skylights, with a support profile on which at least one filling element is fixed, wherein an insulating strip is arranged on one end face of the filling element, which is held on the support profile and at least has a hollow chamber. EP 1 352 134 discloses a mullion and transom construction in which a screw groove is formed on the mullion section between two sheets of glass. In the screw groove an insulating profile is inserted, which has a hollow chamber. In the insulating profile and the screw groove several screws for fixing the glass panes can be mounted on a pressure bar. The arrangement of such an insulating profile on the screw groove has proven itself, but the thermal insulation is limited because the insulating profile is usually made of a harder plastic, which has a comparatively high heat conduction. In addition, the thermal insulation due to the closed design of the hollow chamber of the insulating profile can not be adjusted.

It is therefore an object of the present invention to provide a mullion and transom construction which has improved thermal insulation and allows flexible adaptation of the insulation properties. This object is achieved with a mullion and transom construction with the features of claim 1.

According to the invention, the insulating strip comprises at one end face of a filling element a hollow chamber, which can be closed via at least one movable cover, so that access to the hollow chamber is made possible via the cover. In the hollow chamber can then be inserted as needed Dämmleisten or other elements, which allows flexible adaptation of the insulating strip. The term "cover" is intended to encompass any element that can provide access to the hollow chamber regardless of whether the cover is pivotable or slidable or otherwise provides access. Preferably, the cover is releasably fixed to the insulating strip. This allows a multiple opening and closing can be made. The cover can be latched to the insulating strip. Preferably, the insulating strip comprises at least one film hinge, on which the cover is pivotally mounted. It is possible that the insulating strip is formed of two parts, in which case a part forms the cover and is pivotally supported by the film hinge. It is also possible to pivotally hold the cover over two or more juxtaposed film hinges so that particularly wide opening angles can be realized.

According to a preferred embodiment, a material is at least partially inserted into the hollow chamber, which has a higher thermal insulation than a molded body of the insulating strip. The materials may in particular be formed from an insulating foam or other insulating material, which is formed for example from polyethylene, polypropylene, polyurethane, polyisocyanurate, polystyrene, phenolic resin and / or mineral wool. As insulating materials, it is possible to use all materials which have an effect with regard to heat insulation, sound insulation, fire protection or combinations of these functions.

In addition, it is possible that the insulating strip has a molded body, on the outside at least partially an insulating strip is set with higher thermal insulation than the molded body. Also for the insulating strips arranged on the outside of the insulating strips, the above-mentioned insulating materials, in particular of an insulating foam, can be used. For a particularly high thermal insulation, the insulating strip may have a shaped body having a plurality of openings in the longitudinal direction. The molded body of the insulating strip usually consists of a dimensionally stable plastic body, which has a comparatively high thermal conductivity. By reducing the cross-sectional area of the shaped body through the openings, the heat flow is reduced, wherein the openings for this purpose can be arranged in at least one strip in the longitudinal direction. On this strip, the surface of the openings can occupy more than 50%, in particular more than 70%. The molding made of plastic molding of the insulating strip may preferably be formed thin-walled to ensure good thermal insulation. The wall thickness of the shaped body can be in a range between 0.3 mm to 1.6 mm, in particular 0.5 mm to 1.3 mm.

For a further increase in the insulation, the hollow chamber of the insulating strip can be divided by at least one partition. Through the partition wall and the stability of the molding can be increased.

Preferably, an insulating element is inserted as a molded body in the hollow chamber. The insulating element can be inserted as a loose strip. It is also possible to foam a Dämmstreifen in the hollow chamber, for example by coextrusion.

In a preferred embodiment, a bottom of a groove of the insulating strip has a film hinge, by means of which the insulating strip in two halves

is pivotable. As a result, the insulating strip is formed closed in the assembled state on the outside, so that when screwing a screw into the groove and a screw groove arranged behind the insulating strip is not accidentally opened. Therefore, latching means for fixing the molded body in the closed position are preferably formed on a plug-in part, which is inserted into a screw groove.

The invention will be explained in more detail with reference to several embodiments with reference to the accompanying drawings. Show it:

Figure 1 is a sectional view through an inventive

Mullion and transom construction with an insulating strip;

Figures 2A and 2B show two views of an insulating strip for a mullion and transom construction according to the invention;

FIGS. 3A to 3C show several views of a second insulating strip;

FIGS. 4A and 4B show two views of a third insulating strip;

FIGS. 5A to 5C show several embodiments of a locking mechanism for an insulating strip; Figures 6A and 6B show two views of another insulating strip;

FIGS. 7A and 7B show two views of a further insulating strip;

FIGS. 8A and 8B show two views of a further insulating strip;

9A to 9D show several views of a further insulating strip with a foamed-in insulating element in the production of

FIGS. 10A and 10B show two further embodiments of an insulating strip;

Figure 1 1 is a perspective view of another embodiment of an insulating strip;

Figures 12A and 12B show two views of the insulating strip of Figure 1 1 with different openings;

FIGS. 13A to 13D show several views of apertures with different geometries, and

Figure 14 shows two views of a further embodiment of a

Insulating strip.

A post-and-beam construction comprises a support profile 1, which may be designed as a post or bolt, wherein a screw groove 2 is provided on an outer side. On both sides of the screw 2 holder 3 are formed for sealing strips 4, the edge of a filling element 5, in particular an insulating glass, abut. In order to fix the filling element 5, a pressure strip 7 is provided, which is arranged with seals 8 on an outer side of the filling elements 5. The filling elements 5 are each clamped edge between the seals 8 and 4 sealing strips. The pressure bar 7 is fixed over a plurality of screws 1 1, which are arranged in a gap 6 between the end faces of the filling elements 5 and engage in the screw groove 2.

On the front side of a filling element 5, an insulating strip 10 is further provided, which is penetrated by the screw 1 1 and has a shaped body 12, on the outside of an insulating strip 13 made of a material with high thermal insulation; for example, a foamed Dämmstreifen arranged. The insulating strip 13 has a plurality of sealing lips 14 which abut against an end face of the filling elements 5. In the following, different embodiments of such insulating strip 10 will be described in detail, wherein the same components are provided with the same reference numerals.

FIGS. 2A and 2B show an insulating profile 20 which has a shaped body 21 made of a harder plastic, for example PVC, which encloses a hollow chamber 22. On one side of the insulating profile 20, a groove 23 is formed which is surrounded by lateral webs 24 and serves for example for fixing a seal or another component. The bottom of the groove 23 is formed as a V-shaped film hinge 25, so that the two halves of the shaped body 21 can be pivoted about the film hinge 25 to provide access to the hollow chamber 22.

At two opposite side surfaces of the molded body 21 insulating strips 28 are provided which have a plurality of outwardly projecting Dichtvor- jumps 29 and sealing lips. The material of the insulating strips 28 consists of a material of higher thermal insulation than the molded body 21, for example, an insulating foam.

On the opposite side to the groove 23, a male member 26 is formed on the molded body 21, on which a latching device 27 is provided. As shown in FIG. 2B, the two halves of the molded body 21 can be pivoted about the film hinge 25, so that the hollow chamber 22 can be opened on the male element 26. In this position, a molded part 15 with high thermal insulation can be inserted into the hollow chamber 22, for example of a foamed material, in particular a damping material of polyethylene, polypropylene, polyurethane, polyisocyanurate, polystyrene, phenolic resin or mineral wool. This molding 15 of insulating material can take over functions in terms of heat protection, sound insulation and fire protection. The molded part 15 has in the middle region two grooves 16, engage in the webs 32 on the mold part 21, so that the molded part is fixed within the hollow chamber 22.

During assembly, therefore, it can be decided whether a molded part 15 is inserted into the hollow chamber 22 for a higher thermal insulation and from wel Chem material the Fornnteil 15 is selected. This results in a high degree of flexibility with regard to the intended use of the insulating strip 20. After inserting the molded part 15 into the hollow chamber 22, the molded body 21 of the insulating strip 20 can be pivoted about the film hinge 25 until the latching device 27 latches and the insulating strip 20 can now be mounted on the post and beam construction, as shown for example in Figure 1.

A modified embodiment of an insulating strip is shown in FIGS. 3A to 3C, in which not only a single molded part 15 can be inserted into the hollow chamber 22 of the molded body 21, but two molded parts 17 and 18. The molded parts 17 and 18 can be made from FIG same or a different material. In this case, each mold part 17 or 18 may be loosely inserted or glued into the hollow chamber 22. Between the mold parts 17 and 18, the webs 32 can be used as a spacer. Incidentally, the insulating strip is formed as in the previous embodiment of Figure 2.

In FIGS. 4A and 4B, a modified insulating strip is shown, in which a molded body 21 has a film hinge 30 which is no longer provided at the bottom of the groove 23, but at the opposite side to the male element 26. As a result, the molded body 21 of the insulating strip about the film hinge 30 are pivoted, as shown in Figure 4B. The groove 23 has webs 24 on the sides and a bottom, which is formed by two webs 31 arranged in a V-shape, which contacts in the central region. The webs 31 are inclined relative to the male element 26 and can be inclined Screwing a screw 1 1 can be easily pivoted into the insulating profile.

FIGS. 5A to 5C show the insulating strip of FIG. 2 with modified latching mechanisms. In Figure 5A, a push-button 34 is formed on the male member 26, which locks when squeezing the push-button parts.

In FIG. 5B, a latching device with latching receivers 35 and latching webs 36 is provided on the plug-in element 26, which latching elements are respectively arranged on the inside of the plug-in element 26 and lock together when the plug-in element is compressed. In this case, three latching receptacles 35 and three latching webs 36 are provided, so that when a latching connection is damaged, Make the remaining snap connections hold the molded body 21 in the latched position.

FIG. 5C shows a latching device with a latching receptacle 37 and a latching web 38.

For locking the molded body 21, integrally formed latching devices can be provided, which can be designed as pushbuttons, undercut contours, snap-in webs, snap connections or other types of snap connections.

FIGS. 6A and 6B show a further embodiment of an insulating strip which has a shaped body 45 on which a plate-shaped cover 40 is pivotably mounted. For this purpose, the plate-shaped cover 40 is connected via a film hinge 41 with the shaped body 45, wherein the film hinge is formed on a side wall 24 of the groove 23 on the shaped body 45. On the opposite side to the groove 23, a male member 26 is provided, which is formed as in the previous embodiments of two interconnected webs, the merge a hollow chamber, so that the male member 26 is formed elastically.

In Figure 6B, the cover 40 is shown in an open position in which the hollow chamber 22 is accessible. The hollow chamber is divided by a dividing wall 33 into two individual chambers, wherein in each case a molded part 17 made of a material with high thermal insulation is arranged in both chambers. On the cover 40, an angular spring bar 42 is provided, which is inserted into a recess 43 adjacent to the male member 26 to lock the cover 40 to the mold body 45, as shown in Figure 6A. In this position, the partition wall 33 abuts against the cover 40 with a front edge.

FIGS. 7A and 7B show a further embodiment of an insulating strip, in which a molded body with a lower part 50 and an upper part 52 is provided. The lower part 50 comprises a U-shaped hollow chamber 22, at the end of a male member 26 is formed. In the hollow chamber 22, a molded part 15 is inserted from a material with high thermal insulation, wherein on a side facing the hollow chamber 22 side locking projections 51 are formed on the lower part 50. The latching projections 51 cooperate with latching webs 53, which are formed integrally with the upper part 52. The Upper part 52 includes a groove 23 which is surrounded by lateral webs or side walls 24. In order to fill the hollow chamber 22, the top 52 may be removed as a cover from the bottom 50 to insert the molding 15 and then set the top 52 on the bottom 50, as shown in Figure 7B.

FIGS. 8A and 8B show an embodiment modified from FIG. 7, in which, instead of a lower part and an upper part, a one-part molded body with the lower part 50 and the upper part 52 is provided, which are connected to one another via a film hinge 54. Incidentally, the insulating strip is formed as shown in FIG.

FIGS. 9A to 9D show a further embodiment of an insulating strip which, according to FIG. 9A, is initially shown in an open position. The insulating strip corresponds to the embodiment of Figure 2B, but no loose molded part is inserted from an insulating material in the hollow chamber 22, but via a nozzle 60, a foaming material 61 is injected into the hollow chamber 22. After insertion of the foaming material 61, the insulating strip is closed, as shown in Figure 9B, wherein the latching device 27 provides on the male member 26 for fixing the insulating member in the closed position. In this position, the foamed material 62 can now fill the hollow chamber 22 completely or partially if necessary, wherein in FIG. 9B only a slight expansion of the foaming material 62 is present. The material may also further foam and occupy a larger volume, as shown in Figure 9C, in which the material 62 'already extends over more than 2/3 of the volume of the hollow chamber 22. Furthermore, it is possible to add the intumescent material with a volume that completely fills the hollow chamber 22, as shown in FIG. 9D.

FIGS. 10A and 10B show a further embodiment of an insulating strip, wherein a molded body 70 made of a hard plastic material enclosing two hollow chambers is provided. In each hollow chamber, a molding 75 is inserted from a material with high thermal insulation. The molded body 70 comprises a cover 71 in the form of a side wall which extends over a

Film hinge 72 is connected to the molding 70. The film hinge 72 is formed in the region of the side wall and allows pivoting of the cover 71 to fill the hollow chambers. The molded body 70 further includes integrally formed latching devices, two Nested spaced locking webs 73 are provided, which engage in an undercut locking receptacle 74 on the cover 71. As a result, a stable fixation of the insulating strip is obtained in the closed position.

In FIG. 10A, two rectangular cross-section shaped parts 75 are provided, which are each inserted in a hollow chamber. Instead of these rectangular shaped parts 75 also differently shaped molded parts 76 may be inserted from a material with high thermal insulation in the hollow chambers. The mold parts 76 comprise a sloping side, which is inserted with a tip into a V-shaped receptacle of the hollow chamber, so that the mold parts 76 are fixed substantially in a form-fitting manner in the region of the V-shaped tip. Further, the upper mold part 76 includes a V-shaped contour on the underside, which is inserted into a V-shaped receptacle of the latching web 73.

In Figure 1 1, a further embodiment of an insulating strip is shown, which corresponds in construction to the insulating strip shown in Figure 2, however, two strips with circular openings 80 are additionally provided in the side walls of the insulating strip. The perforations 80 can also have a geometry other than circular, for example square, rectangular, triangular or another contour. The apertures 80 are arranged in strips in the longitudinal direction of the insulating strip, wherein the surface of the apertures 80 based on the surface of the strip at least 50%, preferably about 70%, in particular more than 80%, occupies, wherein the corresponding geometric strip has a width, the width of the

Breakthroughs 80 corresponds. In Figure 1 1, two strips are provided with openings 80, which are arranged on opposite sides of the insulating strip. It is also possible to provide only one strip with openings 80 or more than two strips with openings 80.

Through the openings 80, the material of the shaped body 21 is recessed, so that the heat conduction is reduced, because by reducing the cross section of the shaped body 21 of the male member 26 to the groove 23 is in the mullion-transom construction of Figure 1 from the outside inside reduces the heat conduction.

FIG. 12A shows a section through the insulating strip of FIG. 11, wherein it can be seen that the molded part 15 inserted into the hollow chamber 22 is not perforated, but the hollow chamber 22 is filled. The Openings 80 extend only through the outer Dämmstrei- fen 28 and the molded body 21st

Alternatively, according to FIG. 12B, it is also possible to provide the openings 80 in such a way that the complete insulating strip is broken, ie both in the area of the insulating strip 28, in the area of the molded body 21 and in the area of the molded part 15 of heat-insulating material. This facilitates the production of the insulating strip, even if the thermal insulation is slightly deteriorated.

In FIG. 13A, the openings 80 in the shaped body 21 according to FIG. 11 are shown schematically. The openings 80 are arranged in the longitudinal direction of the insulating strip at regular intervals and extend parallel to the longitudinal direction strip-shaped. The width of a strip Si corresponds to the width of the openings 80. Based on the width of the strip Si, the openings 80 occupy an area of at least 50%, preferably at least 70%.

In FIG. 13B openings 82 are shown in a rectangular shape, which have a smaller width S2 than the circular openings 80. Instead of two strips, three parallel strips with openings 82 are provided.

In FIG. 13C, triangular perforations 83 are provided, so that a framework-like structure is provided in the profile body 21. The triangles are alternately aligned with a tip up or a tip down, so that obliquely extending webs are formed therebetween. The openings 83 in triangular form are aligned in a strip parallel to the longitudinal direction, wherein based on the width of the strip S3, the area of the openings occupies at least 80% of the surface of the strip.

In the exemplary embodiment shown in FIG. 13D, the openings 84 are trapezoidal in shape and have a longer base edge and a shorter front edge running parallel to the longitudinal direction of the insulating strip. The trapezoidal openings 84 are each arranged alternately rotated by 180 °, so that seen in the longitudinal direction alternately a longer base edge to a shorter end edge is present. Based on the width S ₄ of the strip with the openings 84 occupy the openings at least 85% of the area.

The apertures 80, 82, 83, and 84 may also have other geometric shapes, and the number of strips with openings can be chosen freely depending on the size of the profile body 21 and the openings.

FIG. 14A shows a further exemplary embodiment of a molding made of a plastic for an insulating strip. The shaped body comprises a hollow chamber 22 of substantially rectangular design in cross-section for the optional insertion of an insulating material. On a front side of the shaped body, a groove 23 is formed, which is surrounded by lateral webs 24, which have inwardly directed projections and can be used to define a seal or other component. The bottom of the groove 23 is formed as a V-shaped film hinge 25, so that the two halves of the shaped body 21 can be pivoted about the film hinge 25 to provide access to the hollow chamber 22.

On the opposite side to the groove 23, a male member 26 is formed, which is formed of two spaced wall sections, the

Hollow chambers 94 and 95 are surrounded. The wall portions of the male member 26 are fixed via locking webs 90, 91 and 92, 93, which are hook-shaped and fix the closed position of the molding. In order to gain access to the hollow chamber 22, the two halves of the shaped body 21 can be pivoted about the film hinge 25. It is additionally or alternatively possible to open the hollow chamber 22, in which one side of the molded body 21 is pivoted about a further film hinge 96 which is formed on a side wall of the hollow chamber 22 adjacent to the groove 23. When using the two film hinges 25 and 96, particularly large opening angles can be obtained. The film hinge 96 can also be provided on opposite sides of the hollow chamber 22, instead of only on one side. In Figure 14B, the insulating strip with the molding of Figure 14A is shown, in which in the hollow chamber 22 in the a strip-shaped molding 15 is inserted loosely with high thermal insulation. On the outside of the side walls of the hollow chamber 22 insulating strips 97 are fixed, in particular by gluing. The described embodiments can be combined with each other arbitrarily, for example, instead of a single hollow chamber, a plurality of hollow chambers can be provided on the insulating strip. In addition, one or more of the hollow chambers can be filled with moldings of heat-insulating material, wherein the material of the molded parts can be used depending on the desired function. Insbesondre it may be necessary for reasons of fire protection, use only certain insulation materials, while for optimal thermal insulation other materials are preferred. The mold parts 15 may be mechanically fixed in the hollow chamber as well as glued or foamed.

The insulating strip 20 may further instead of a male member 26 which is inserted into the screw groove 2, a slip-on, which is attached externally to the screw 2 with two legs.

LIST OF REFERENCE NUMBERS

1 support profile

2 screw groove

3 holders

4 sealing strip

5 filling element

6 space

7 pressure bar

8 seal

10 insulating strip

1 1 screw

12 moldings

13 insulating strips

14 sealing lip

15 molding

16 groove

17 molding

18 molding

20 insulating strip

21 moldings

22 hollow chamber

23 groove

24 footbridge

25 movie hinge

26 male element

27 latching device

28 insulating strips

29 sealing projection

30 movie hinge

31 footbridge

32 footbridge

33 partition

34 push button

35 locking recess

36 snap bar

37 snap-in receptacle

38 snap bar

40 cover 41 film hinge

42 spring bar

43 recess

45 shaped bodies

50 lower part

51 latching projection

52 upper part

53 snap bar

54 Film hinge

60 nozzle

61 material

62, 62 'material

70 moldings

71 cover

72 movie hinge

73 snap-in bar

74 snap-in receptacle

75 molded part

76 molding

80 opening

82 opening

83 opening

84 opening

90 snap bar

91 snap bar

92 snap-in bar

93 snap bridge

94 hollow chamber

95 hollow chamber

96 film hinge

97 insulating strips

Claims

claims

Post-and-beam construction, in particular for facades or skylights, with a support profile (1) on which at least one filling element (5) is fixed, wherein on one end side of the filling element (5) an insulating strip (10, 20) is arranged, which is held on the support profile (1) and at least one hollow chamber (22), characterized in that the insulating strip (10, 20) has at least one movable cover by means of which the hollow chamber (22) of the insulating strip (10, 20) is closable ,

Post-and-beam construction according to claim 1, characterized in that the cover is releasably fixed to the insulating strip (10, 20).

Post-and-beam construction according to claim 1 or 2, characterized in that in the hollow chamber (22) at least partially a material (15, 17, 63, 75) is inserted, which has a higher thermal insulation than a molded body (21, 45, 50, 70) of the insulating strip (10, 20).

Post-and-beam construction according to one of the preceding claims, characterized in that the cover on the insulating strip (10, 20) can be latched.

Post-and-beam construction according to one of the preceding claims, characterized in that the insulating strip (10, 20) has a film hinge (25, 30, 41, 54) and the cover via the film hinge (25, 30, 41, 54) pivotable is trained.

Post-and-beam construction according to one of the preceding claims, characterized in that the insulating strip (10, 20) has a shaped body (21, 45, 50, 70), on the outside of which at least in regions an insulating strip (28) with a higher thermal insulation than that Shaped body (21, 45, 50, 70) is fixed.

Post-and-beam construction according to one of the preceding claims, characterized in that the insulating strip has a shaped body (70) which has a plurality of perforations (80, 82, 83, 84) in the longitudinal direction.

8. mullion and transom construction according to claim 7, characterized in that the openings (80, 82, 83, 84) in the longitudinal direction of the insulating strip are arranged in strips and the surface of the openings (80, 82, 83, 84) based on the Surface of the strip occupies at least 50%, preferably at least 70%, wherein width of the strip has the same width as the openings (80, 82, 83, 84).

9. mullion-transom construction according to one of the preceding claims, characterized in that the hollow chamber (22) of the insulating strip is divided by at least one partition wall (33, 73).

10. mullion-transom construction according to one of the preceding claims, characterized in that an insulating strip (63) is foamed into the hollow chamber (22) of the insulating strip.

1 1. Post-and-beam construction according to one of the preceding claims, characterized in that a bottom of a groove (23) of the insulating strip (10, 20) has a film hinge (25) by means of which the insulating strip is pivotable in two halves.

12. mullion-transom construction according to one of the preceding claims, characterized in that latching means (27, 90, 91, 92, 93) are formed for fixing the shaped body in the closed position to a male part (26) in a Schraubnut (2) is held.

13. Post-and-beam construction according to one of the preceding claims, characterized in that the insulating strip has a molded body made of plastic, wherein the wall thickness of the shaped body in a range between 0.3mm to 1, 6mm, in particular 0.5mm to 1, 3mm lies.