DE102020122436A1 - SUPPORT FOR A BLIND ELEMENT - Google Patents

Abstract

The invention relates to a support (25) for a screen element, for example a window sill (26), a roller shutter box or a guide rail, with a reveal bearing surface (28) and an element bearing surface (31) opposite the reveal bearing surface (28). In order to improve both the heat insulation and the sound insulation as well as the tightness against driving rain, the overlay according to the invention is characterized in that the reveal bearing surface (28) is stepped. The invention also relates to a building opening with such an overlay and a building with such an overlay building opening.

Description

The invention relates to a support for a screen element, for example a window sill, a roller shutter box or a guide rail, with a reveal bearing surface and an element bearing surface opposite the reveal bearing surface. Furthermore, the invention relates to a building opening with such a support and a building with such a building opening.

Such an edition is, for example, from EP 2 669 460 A1 , the DE 20 2015 003 913 U1 or the DE 20 2016 101 812 U1 known. The supports shown in it serve specifically as a support for a window sill on the outside of the building. However, the present invention is not limited to this, but can also be used advantageously in connection with other cover elements, such as window sills on the inside of the building (side to the living room interior), or lateral guide rails or upper roller shutter boxes. The support is arranged between the reveal surface of the building opening and the respective cover element.

When installing windows, they are inserted into a corresponding building opening and positioned there using wedges and wedged, screwed and then foamed in this position. Below the floor frame there is often a support bar or a support wedge, with the help of which the window is positioned and wedged at its height within the building opening. This also applies to the arrangements shown in the prior art mentioned at the outset. In the arrangements according to the EP 2 669 460 A1 or the DE 20 2016 101 812 U1 connects to this support strip or support wedge on the outside of a support for a window sill. At the subject of DE 20 2015 003 913 U1 the support even reaches under the support strip or the support wedge.

The underside of the support rests on the reveal. This side is therefore referred to as the reveal bearing surface within the scope of the present disclosure. Opposite the reveal bearing surface, ie on the upper side of the bearing, there is a bearing surface for the respective screen element, specifically the window sill in the above prior art. This side of the support is therefore referred to as the element support surface within the scope of the present disclosure. The element support surface slopes outwards at an angle of about 5° to the horizontal. This ensures good water drainage even in driving rain.

An inwardly pointing vertical end surface of the support bears against the support strip or the support wedge and is optionally connected to the support strip or the support wedge via a tongue and groove connection. The pad itself is typically formed from an insulating material such as foam. On the outside, the support extends up to the outer surface of the outer wall of the building or an outer insulation that may additionally insulate the outer wall of the building and can be plastered over on the outer end face.

In addition to thermal insulation properties, it is also the task of the overlay to ensure good sealing of the window even in driving rain and good sound insulation. Although good results have already been achieved with the prior art mentioned at the outset, the present invention is based on the object of further improving the heat insulation, the sound insulation and the tightness against driving rain.

To solve this problem, the support according to the invention is characterized in that the reveal support surface is designed in a step-like manner. The building opening according to the invention has such a support for a window sill in addition to a window inserted therein or a (terrace) door. The building according to the invention is provided with such a building opening.

In the state of the art mentioned at the outset, the reveal bearing surface is designed to be completely flat. This results in a straight passage at the contact surfaces, i.e. the reveal support surface of the support on the one hand and the surface of the reveal on the other hand. It has been shown that the simple measure of having a step and thus interrupting the straight passage can further significantly improve both the thermal insulation and the sound insulation as well as the tightness in driving rain. Thermal and sound bridges are minimized.

According to a constructive embodiment of the present invention, the reveal bearing surface is divided into a first and a second section. The second section points inwards when the support is in the assembled state, while the second section points to the outside of the building in the assembled state. For the solution of the object of the invention of improved thermal insulation, sound insulation and impermeability even in driving rain, it is irrelevant whether the first section is arranged higher or lower than the second section. However, the support according to this development is designed in such a way that the first section is at a smaller distance from the element support surface than the second section. In the assembled state, the first section is therefore arranged higher than the second section. at A prototype has surprisingly shown that this can significantly simplify the assembly of the support and with it, for example, the window sill. Due to this measure alone, the support holds up much better, so that very complex additional fixations are no longer necessary. According to a particularly preferred constructional embodiment, the step surface arranged between the first and the second section of the soffit bearing surface rests against a building wall in the assembled state. Consequently, the first section rests on the building wall, while the second section either floats freely or rests on a building's exterior insulation, ie an outer insulation layer. Special measures for a gradation in the reveal of the building wall or the reveal of the insulating layer are therefore not required.

• 1 einen Querschnitt durch einen Mauersockel mit einer darüber angeordneten Gebäudeöffnung und einem darin eingesetzten Fenster sowie einer ersten Auflage mit den Erfindungsmerkmalen;
• 2 einen Querschnitt durch einen Mauersockel mit einer darüber angeordneten Gebäudeöffnung und einem darin eingesetzten Fenster sowie einer zweiten Auflage mit den Erfindungsmerkmalen;
• 3 einen Querschnitt durch einen Mauersockel mit einer darüber angeordneten Gebäudeöffnung und einem darin eingesetzten Fenster sowie einer weiteren Auflage mit den Erfindungsmerkmalen.

The invention is explained in more detail below with reference to exemplary embodiments illustrated in the drawing. Show in the drawing:

• 1 a cross section through a wall base with a building opening arranged above it and a window inserted therein and a first edition with the features of the invention;
• 2 a cross section through a wall base with a building opening arranged above it and a window inserted therein and a second edition with the features of the invention;
• 3 a cross section through a wall base with a building opening arranged above it and a window inserted therein as well as a further edition with the features of the invention.

The figures show a building opening 10 in which a window is inserted. The window has a stick frame 11 and a casement frame 12, of which 1 a lower wing frame spar and a lower stick frame spar can be seen in cross section. Triple glazing 13 is inserted into the sash frame 12 and held in place by means of a window frame 14, of which a lower window frame spar can be seen in the present case. The casement frame 12 is sealed against the floor frame 11 in the usual way.

The floor frame 11 also has a window frame 15, of which a lower window frame spar and a cheek 16, which is connected to an upright window frame spar and contains a guide 17 for shading, can be seen in the present case.

The figures also show a building wall 18 made of brick, for example, in which the building opening 10 is arranged. On the inside of the building, towards the interior, the building wall 18 is provided with an interior plaster 19 and on the outside with an insulating material layer 20 which carries an exterior plaster 21 on its outside (the side facing away from the building wall 18).

When inserting the window into the building opening, the stick frame is first positioned in the building opening 10 (window opening) and wedged in the desired position by means of support strips or support wedges 22. The window is then usually foamed in, after it has been screwed on if necessary.

• Innen schließt an die Stützleiste oder Stützkeil 22 eine Fensterbankauflage 23 für eine innere Fensterbank 24 an. An der Außenseite schließt an die Stützleisten oder den Stützkeilen 22 ebenfalls eine Auflage 25 für eine äußere Fensterbank 26 an. Diese Fensterbankauflage bildet das erste Ausführungsbeispiel für eine erfindungsgemäße Elementauflage. Die äußere Fensterbank 26 ist dementsprechend eine erste Form eines Blendelementes im Sinne der vorliegenden Erfindung.

With reference to 1 a first application for the invention is explained below:

• On the inside, a window sill support 23 for an inner window sill 24 adjoins the support strip or support wedge 22 . On the outside, a support 25 for an outer window sill 26 also adjoins the support strips or the support wedges 22 . This window sill support forms the first exemplary embodiment of an element support according to the invention. The outer window sill 26 is accordingly a first form of a cover element within the meaning of the present invention.

The supports 23 and 25 are each connected to the support strip or the support wedge 22 via a tongue and groove connection. The outer window sill 26 can rest directly on the support 25. Alternatively, as shown, an insert element 27 can also be provided between the window sill 26 and the support 25 .

The support 25 has a reveal support surface 28 on its underside. The support 25 rests with the reveal support surface 28 on an upper reveal surface 29 of the building wall 18 and an upper reveal surface 30 of the insulating material layer 20 . On its upper side, i.e. the side opposite the reveal bearing surface 28, the bearing 25 has an element bearing surface, specifically a window sill bearing surface 31, on which the window sill 26 rests directly or, as shown here, via the insert element 27. In the case of a window sill 26 resting directly on it, the window sill support surface 31 slopes outwards at an angle corresponding to the angle of the window sill 26 (usually 5° from the horizontal). But even in the case of the insert element 27, the window sill support surface 31 does not necessarily have to run horizontally, but can also slope outwards at an angle. The only thing that should be avoided is a sloping inward fall towards the floor frame 11 so that moisture does not penetrate. This is the case in the exemplary embodiment shown here: the Sill support surface 31 slopes outwardly at a lesser angle than sill 26 itself, namely about 3°.

The support 25 is connected to the building wall 18 and/or the insulating material layer 21 in a suitable manner, e.g. glued. Likewise, the insert element 27 is connected to the support 25 in a suitable manner, e.g. glued.

As shown, the soffit bearing surface 28 is formed in a step-like manner. A first section 32 rests on the reveal surface 29 of the building wall 18 , while a second section 33 rests on the reveal surface 30 of the insulating material layer 20 . The two sections 32 and 33 are connected to one another via a step surface 34 . The two sections 32 and 33 are therefore on different levels, with the first section 32, which lies on the reveal surface 29 of the building wall 18, being arranged further towards the center of the window, i.e. higher in the present case, than the second section 33, which rests on the reveal surface 30 the insulation layer 20 rests. The step surface 34 rests against the building wall 18 on the outside.

The thickness of the support 25 depends on how far above the reveal surface 29 the window sill 26 is arranged. But here, too, care should be taken to ensure that the window sill support surface 31 does not correspond or align with the upper side of the support strip or the support wedge 22, so that no sound or thermal bridges form here either. The end face 35 of the support 25 facing the floor frame 11 is therefore designed to be higher in the present case than the thickness of the support strip or the support wedge 22.

The outer face 36 of the supports 25 facing away from the floor frame 11 is flush with the outside of the insulating material layer 20 and is also plastered in, ie covered with the outer plaster 21 .

2 shows a variant for the lateral cheek 16, which is arranged on a vertical reveal surface 37 of the building opening 10. In the present case, the cheek 16 thus forms the cover element within the meaning of the present invention. A support 38 is in turn arranged between the cheek 16 and the vertical reveal surface 37 .

As in the exemplary embodiment described above, the support 38 has a reveal support surface 39 which is designed in a step-like manner. A first section 40 rests on the vertical reveal surface 37 of the building wall 18 , while a second section 41 rests on a vertical reveal surface 42 of the insulation layer 20 . The two sections 40 and 41 are connected to one another via a step surface 43 . The two sections 40 and 41 are therefore again on different levels, with the first section 40, which rests on the reveal surface 37 of the building wall 18, being arranged further towards the center of the window than the second section 41, which rests on the reveal surface 42 of the insulating material layer 20 . The step surface 43 is again in contact with the building wall 18 on the outside.

In the present case, too, the thickness of the support 38 is to be selected according to the distance between the cheek 16 and the reveal surface 37 of the building wall 18 or the reveal surface 42 of the insulating material layer 20 . However, it should also be ensured here that a cheek support surface 44 of the supports 38, which faces the cheek 16, does not correspond or is aligned with the side of the support strip or the support wedge 22 facing the stick frame 11, in order to avoid noise here as well - or to form thermal bridges. The face 45 of the support 38 facing the floor frame 11 is therefore thicker in the present case than the thickness of the support strip or the support wedge 22. In the present case, the cheek support surface 44 runs parallel to the first section 40 and second section 41 of the reveal support surface 39.

In the present case, the cheek 16 is attached to the support 38 by means of clip holders 46 , which in turn can be glued to the cheek support surface 44 or screwed to the support 38 . In the present case, the outer face 47 of the supports 38 facing away from the floor frame 11 is not flush with the outside of the insulating material layer 20, but is set back inwards toward the building wall 18. The insulating material layer 20 has a recess 48 which is flush with the outer face 47 . An insulating board 49 is inserted into the space formed in this way, which fills this space and the outside of which is flush with the outer surface of the insulating material layer 20 . Both are covered with the exterior plaster 21. Alternatively, it is also possible that the outer end face 47 of the support 38 is aligned with the outside of the insulation layer 20 and these are plastered together, as is the case with the above with reference to FIG 1 illustrated application is shown and described. Conversely, in accordance with the application 1 the insulation board 49 are used.

3 shows an application for a pad 50 according to the invention, in which the cover element is a roller shutter box 51 for receiving, inter alia, slats 52 of an external shading. The support 50 is arranged below a horizontal reveal surface 53 of the building wall 18 or the horizontal reveal surface 54 of the insulation layer 20 .

As in the exemplary embodiments described above, the support 50 has a reveal support surface 55 which is designed in a step-like manner. A first section 56 bears against the horizontal reveal surface 53 of the building wall 18 at the bottom, while a second section 57 bears against the horizontal reveal surface 54 of the insulating material layer 20 at the bottom. The two sections 56 and 57 are connected to one another via a step surface 58 . The two sections 56 and 57 are therefore also in the present case on different levels, with the first section 56, which rests against the reveal surface 53 of the building wall 18, being arranged further towards the center of the window, i.e. further down, than the second section 57, which rests against the reveal surface 44 of the insulating material layer 20 . The step surface 58 is again in contact with the building wall 18 on the outside.

In the present case, too, the thickness of the support 50 is to be selected according to the distance between the roller shutter box 51 and the reveal surface 53 of the building wall 18 or the reveal surface 54 of the insulating material layer 20 . However, care should again be taken here that a box support surface 59 of the supports 50, which faces the roller shutter box 51, does not correspond or is aligned with the side of the support strip or support wedge 22 facing the stick frame 11, in order to avoid noise here as well - or to form thermal bridges. The end face 60 of the support 50 facing the floor frame 11 is therefore thicker in the present case than the thickness of the support bar or support wedge 22. In the present case, the box support surface 59 runs parallel to the first section 56 and second section 57 of the reveal support surface 55.

The outer face 61 of the supports 50 facing away from the stick frame 11 is aligned in the present case, as well as in the exemplary embodiment according to FIG 2 , Not with the outside of the insulation layer 20, but is set back inward to the building wall 18 out. The insulating material layer 20 again has a recess 62 which is flush with the outer end face 61 . In the space formed in this way, an insulating board 63 is again inserted, which fills this space and the outside of which is flush with the outer surface of the insulating material layer 20 . Both are covered with the exterior plaster 21. Alternatively, it is also possible here that the outer end face 61 of the support 50 is aligned with the outside of the insulating material layer 20 and these are plastered together, as is the case with the above with reference to FIG 1 illustrated application is shown and described.

The invention is not limited to the applications described above. Rather, it can be used for any type of cover element that completely or partially covers the reveal of a building opening.

Reference List

10

building opening

11

stick frame

12

sash frame

13

triple glazing

14

frame

15

frame

16

cheek

17

guide

18

building wall

19

interior plaster

20

insulation layer

21

exterior plaster

22

Support bar or support wedge

23

window sill pad

24

windowsill

25

edition

26

windowsill

27

insert elements

28

soffit bearing surface

29

soffit surface

30

soffit surface

31

window sill support surface

32

section

33

section

34

step surface

35

face

36

face

37

soffit surface

38

edition

39

soffit bearing surface

40

section

41

section

42

soffit surface

43

step surface

44

cheek rest surface

45

face

46

clip holder

47

face

48

return

49

insulation board

50

edition

51

shutter box

52

lamella

53

soffit surface

54

soffit surface

55

soffit bearing surface

56

section

57

section

58

step surface

59

box support surface

60

face

61

face

62

return

63

insulation board

QUOTES INCLUDED IN DESCRIPTION

This list of documents cited by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent Literature Cited

• EP 2669460 A1 [0002, 0003]
• DE 202015003913 U1 [0002, 0003]
• DE 202016101812 U1 [0002, 0003]

Claims (7)

Support (25, 38, 50) for a screen element, for example a window sill (26), a cheek (16) or a roller shutter box (61), with a reveal bearing surface (28, 39, 55) and one of the reveal bearing surfaces (28, 39, 55) opposite element support surface (31, 44, 59), characterized in that the reveal support surface (31, 44, 59) is of step-like design. Edition (25, 38, 50) after claim 1 , characterized in that a first section (32, 40, 56) of the reveal bearing surface (31, 44, 59), which points inward in the assembled state, is formed at a smaller distance from the element bearing surface (31, 44, 59) than a second section (33, 41, 57) of the reveal bearing surface (31, 44, 59), which points outwards in the assembled state. Edition (25, 38, 50) after claim 2 , characterized in that a step surface (34, 43, 58) arranged between the first section (32, 40, 56) and the second section (33, 41, 57) of the reveal bearing surface (31, 44, 59) is designed in such a way that it rests against a building wall (18) in the assembled state. Building opening (10) with a window inserted therein or a (terrace) door and with a reveal surrounding the building opening (10) and a building wall (18) surrounding it, characterized by a support (25, 38, 50) for a covering covering the reveal Screen element (16, 26, 61) according to one of Claims 1 until 3 . Building opening (10) after claim 4 , characterized in that the first section (32, 40, 56) of the reveal bearing surface (31, 44, 59) rests on a reveal surface (29, 37, 53) of the building wall (18) and the step surface (34, 43, 58) on the outside of the building wall (18). Building opening (10) after claim 5 , characterized in that the second section (34, 43, 58) rests on a reveal surface (30, 42, 54) of an insulating material layer (20). Building characterized by a building opening (10) according to one of Claims 4 until 6 .

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