EP3623566A1 - Shading system for an architectural opening - Google Patents

Abstract

The invention relates to a shading system for an architectural opening, such as a window or a door, comprising: a housing (44); a curtain (47); a winding shaft (22) by means of which the curtain (47) can be moved between an open position and a closed position; at least one holding element (21) detachably held on a guide (20) in the housing (44), by means of which the winding shaft (22) is mounted on its end faces in the housing (44); and guide rails (46) running in the opening and closing direction of the curtain (47), in which at least one front edge of the curtain (47), as seen in the closing direction, is guided. In order to create a shading system in which the winding shaft can be easily removed even with plastered guide rails and roller blind boxes, the shading system according to the invention is characterized in that the holding element (21) can be pulled out of the associated guide (20) in the closing direction of the curtain (47) The invention further relates to a building with such a shading system and a method for dismantling the same.

Description

The invention relates to a shading system for an architectural opening, such as a window or a door, comprising: a housing; a curtain; a winding shaft, by means of which the curtain can be moved between an open position and a closed position; at least one holding element detachably held on a guide in the housing, by means of which the winding shaft is mounted on its end faces in the housing; guide rails running in the opening and closing direction of the curtain, in which at least one front edge of the curtain, as seen in the closing direction, is guided. Furthermore, the invention relates to a building with such a shading system and a method for dismantling such a shading system from an architectural opening.

The invention is concerned in particular with external roller blinds, but can equally well be used advantageously for external blinds with horizontal slats or other comparable shading systems in the external area (so-called external shading) and shading systems in the internal area (so-called internal shading). Specifically, the invention can be used particularly for so-called blinds (or also horizontal blinds), which are usually retrofitted to shade an architectural opening, e.g. a window or a (patio) door. The background of the invention and its advantages are therefore explained below using the example of a front blind, although the invention, as explained, can also be used advantageously in other ways.

Front blinds are usually installed on existing buildings retrospectively or by replacing old windows or patio doors with new windows or doors in front of the window or door frame. For this purpose, a housing of the front roller blind, the so-called roller blind box, is placed in front of the upper crossbar of the window or door frame complained. Furthermore, guide rails are mounted on the side of the glazing or in front of the window frame next to the glazing.

Recently, shading systems, including the front blinds, have been operated electrically and even integrated into so-called smart home solutions. The motor for driving the winding shaft is usually arranged in the winding shaft itself. If the motor falls or needs maintenance, the winding shaft must be removed from the roller blind box. For this purpose, the roller blind box is opened and the winding shaft with the curtain, also called roller blind, is removed. If necessary, the side guide rails must also be removed for this purpose.

Since the inner clear distance between the two side guide rails must be smaller than the width of the curtain, because otherwise the curtain cannot be guided in the guide rails, the winding shaft must also be correspondingly long. It is therefore difficult to remove the winding shaft, particularly in a situation where the curtain is almost completely or even completely wound (i.e. opened). Either the winding shaft must be removed towards the front, i.e. away from the window, or at least the guide rails must be removed. In both cases, the guide rails and often also the roller blind box cannot be plastered in, since this also makes the removal of the winding shaft at least more difficult, if not impossible.

Proceeding from this, the invention is based on the problem of creating a shading system in which the winding shaft can be easily removed even with plastered guide rails and roller blind boxes.

From the WO 2011/150412 A1 a shading system is known in which the winding shaft is supported on one side on a holding element which can be pulled out of a guide. In addition, this document does not help in solving the above problem.

To solve the problem on which the invention is based, the shading system according to the invention is characterized in that the holding element can be pulled out of the associated guide in the closing direction of the curtain.

The winding shaft can therefore be pulled out of the housing (the roller blind box) together with one or both of the holding elements in the closing direction of the curtain, ie downwards in the usual installation situation. As a result, plaster on the housing (roller blind box) and the guide rails do not interfere, so that they can be plastered in the structure according to the invention. According to the method according to the invention, the shading system according to the invention is dismantled in such a way that a revision cover is first removed from the housing. The holding element there is then detached from the guide on at least one side and pulled out of the guide in the closing direction of the curtain. Simultaneously or subsequently, the winding shaft is tilted in the curtain plane, so that the winding shaft is released between the inner edges of the plaster. Now it can be pulled out of the architectural opening. Possibly. Depending on the geometric conditions, one or both of the guide rails are removed before or after removing the inspection cover from the housing.

In this way, the winding shaft together with the curtain can be easily removed from the housing even when the housing and guide rails are plastered in, even if the curtain is completely or almost completely wound up.

It when the guide is covered by a deflector is particularly advantageous. It is therefore provided with a flat surface on the inside (towards the curtain). This prevents edges on the curtain, e.g. by individual slats, hook behind the edges on the guide. A malfunction of the shading system or damage is avoided.

According to a development of the invention, the holding element is releasably locked to the guide by a clamping screw. Alternatively, a clip or would be Snap connection possible, as this with the shading system according to the above WO 2011/150412 A1 is provided. However, this would have the disadvantage that something unintentionally reaches behind a grip tab or the like to open the clip or snap connection and unintentionally detaches the holding element from the guide. This can be avoided by locking with a clamping screw. Possibly. the clamping screw can also be provided in addition to the clip or snap connection. When the holding element is pushed into the guide, the holding element is initially, as it were, pre-locked by the clip or snap connection and then finally secured by the clamping screw.

As already stated above, it is sufficient according to the invention if one of the holding elements is detachably held in a guide and can be pulled out of it. However, both holding elements can preferably be pulled out of the guide. The winding shaft can then first be taken out of the housing without being tilted down and only then tilted in order to remove it from the architectural opening.

• Fig. 1 eine Führung mit einem Haltelement für eine Verschattungsanlage mit den Erfindungsmerkmalen in perspektivischer Explosionsdarstellung,
• Fig. 2 die Führung mit dem Halteelement gemäß Fig. 1 mit eingesetzter Wickelwelle,
• Fig. 3 einen Wandabschnitt eines Gebäudes mit Fensteröffnung und Fenster mit einer Verschattungsanlage mit den Erfindungsmerkmalen in einem Vertikalschnitt in einer Ebene einer Längsachse einer Wickelwelle (Ebene III-III gemäß Fig. 4),
• Fig. 4 den Wandabschnitt eines Gebäudes gemäß Fig. 3 in einem Vertikalschnitt in der Ebene IV-IV,
• Fig. 5 den Wandabschnitt eines Gebäudes gemäß Fig. 3 in einem Horizontalschnitt in der Ebenen V-V,
• Fig. 6 den Wandabschnitt eines Gebäudes gemäß Fig. 3 in perspektivischer Ansicht,
• Fig. 7 den Wandabschnitt eines Gebäudes gemäß Fig. 3 in perspektivischer Ansicht während der Demontage einer Führungsschiene,
• Fig. 8 den Wandabschnitt eines Gebäudes gemäß Fig. 3 in perspektivischer Ansicht während der Demontage einer Revisionsabdeckung,
• Fig. 9 den Wandabschnitt eines Gebäudes gemäß Fig. 3 in perspektivischer Ansicht bei teilweise entnommener Wickelwelle,
• Fig. 10 den Wandabschnitt eines Gebäudes gemäß Fig. 3 in perspektivischer Ansicht während der endgültigen Entnahme der Wickelwelle,
• Fig. 11 die Führung gemäß Fig. 1 in einer weiteren detaillierteren perspektivischer Explosionsdarstellung
• Fig. 12 eine Abwandlung der Führung gemäß Fig. 1, bei welcher die Verschattungsanlage ausgetauscht wurde.

The invention is explained in more detail below with reference to an embodiment shown in the drawing. The drawing shows:

• Fig. 1 a guide with a holding element for a shading system with the features of the invention in a perspective exploded view,
• Fig. 2 the leadership with the holding element according Fig. 1 with inserted winding shaft,
• Fig. 3 a wall section of a building with window opening and window with a shading system with the features of the invention in a vertical section in a plane of a longitudinal axis of a winding shaft (plane III-III according Fig. 4 ),
• Fig. 4 according to the wall section of a building Fig. 3 in a vertical section in the plane IV-IV,
• Fig. 5 according to the wall section of a building Fig. 3 in a horizontal section in the VV planes,
• Fig. 6 according to the wall section of a building Fig. 3 in perspective view,
• Fig. 7 according to the wall section of a building Fig. 3 in perspective view during the dismantling of a guide rail,
• Fig. 8 according to the wall section of a building Fig. 3 in perspective view during the dismantling of an inspection cover,
• Fig. 9 according to the wall section of a building Fig. 3 in a perspective view with the winding shaft partially removed,
• Fig. 10 according to the wall section of a building Fig. 3 in a perspective view during the final removal of the winding shaft,
• Fig. 11 the leadership according to Fig. 1 in a further detailed perspective exploded view
• Fig. 12 a change in leadership Fig. 1 in which the shading system was replaced.

The Fig. 1 and 2nd show a guide 20 with holding element 21 and a winding shaft 22 for a shading system. The shading system is specifically an external roller blind for an architectural opening, such as a window or a (patio) door.

The guide 20 has a rear wall 23 and a U-shaped circumferential side wall 24. The side wall 24 is provided with recesses 25 which, for example can serve to lead cables through. Depending on the installation situation of the shading system, an open side of the U-shaped peripheral side wall 24 is referred to below as the lower side. This lower side 23 tabs 26 are provided on the rear wall, which cooperate with a guide rail to be described. A guide recess 27 is provided in the rear wall 23 of the guide 20. Guide tabs 28 protrude on the inside of the guide 20 into the guide recess and thus form a guide groove 29.

The holding element 21 also has a rear wall 30 and a grip tab 31 projecting perpendicularly on the lower side of the rear wall 30. On the upper side of the holding element 21, teeth 32 protrude from the rear wall 30, which interact with complementary teeth 33 on an end face of the winding shaft 22 and thus form a torque support for a winding motor 34, which will be explained in more detail below. Furthermore, a console box 35 is provided on the holding element adjacent to the grip tab 31, which e.g. can serve to accommodate control electronics.

On the rear wall 30 of the holding element 21, a guide web 36 is provided in a U-shaped circumference, which corresponds to the guide groove 29 of the guide 20. The retaining element 21 can thus be pushed into and out of the guide recess 27 of the guide 20 from below, the guide web 36 sliding in the guide groove 29. Seen in the axial direction of the winding shaft 22, the holding element 21 is held by means of its guide web 36 and the guide tabs 28. Clamping screws 37 in the form of grub screws serve to lock the holding element 21 on the guide 20 when the holding element 21 is inserted into the guide 20 or its guide recess 27. Corresponding bores 38 are provided in the rear wall 30 of the holding element 21 for this purpose. The clamping screws 37 and correspondingly the bores 38 can be provided with a thread or the clamping screws 37 can be designed as self-tapping screws.

Inwards, that is to say towards the winding shaft 22, the guide 20 is provided with a deflector plate 39 which can be fastened to the guide 20 by means of screws 40 is. The deflector plate 39 has a recess 41 through which the winding shaft 22 extends and also the console case 35 engages. An upper side of the console box 35 forms in the fully assembled state ( Fig. 2 ) a flat surface with the upper surface of the deflector plate 39 facing inwards towards the winding shaft 22, so that there are no protruding edges behind which something could get caught.

Fig. 3 shows a wall section with a top left corner of a window as an example of an architectural opening. The window has a window frame 42 and a glass surface 43. In the present case, the window frame 42 has a stick frame 42a made of wood or plastic and a frame 42b made of aluminum (wood-aluminum window or plastic-aluminum window). On the upper cross bar of the window frame 42, a roller blind box 44 is provided as a housing for a front blind. The roller blind box 44 is thus placed outside the window frame 42 ( Fig. 4 ).

In the present case, the roller blind box 44 is formed as a U-shaped box which is open at the bottom and whose open underside is closed by a revision cover 45. The guide 20 forms a side wall of the roller blind box 44 and accordingly closes it on its left end face. Alternatively, the guide can also be used on a separate end wall of the roller blind box 44, e.g. be screwed on or be an integral part of the same.

In the guide 20 or its guide recess 27, the holding element 21 is inserted in the manner described above, locked there and carries the winding shaft 22. Below the guide 20 and the holding element 21, a guide rail 46 is provided, which the curtain of the shading system during opening - And closing movement leads and holds the curtain, if necessary, in a direction transverse to the curtain plane when it is completely or partially closed.

Fig. 4 shows the shading system described so far in vertical section in the fully assembled. The curtain 47, which is completely wound onto the winding shaft 22 and thus fully opened, can also be clearly seen here. Furthermore, a guide 48 of the guide rail 46 for the curtain 47 can be seen, which is in a groove 46a of the guide rail 46 is inserted. The roller blind box is placed in a masonry 49 of the building and from the outside in front of the window frame 42. The masonry 49 as well as the roller blind box 44 and the guide rail 46 are provided with a plaster 50 from the outside. As in Fig. 5 is clearly visible, a base rail 51 is arranged in the window reveal in the masonry and fastened in a suitable manner, to which the guide rail 46 is screwed (screws 52). Alternatively, the guide rail 46 can also be connected only to the base rail 51 by means of a plug-in or clip / latch connection, as is the subject of the post-published publication DE 10 2018 106055 A (also registered as a European patent application with the application number 19 162 588.8 ) is.

Only the upper left corner of the window is shown here. The upper right corner of the window is preferably, but not necessarily, configured analogously with a holding element detachably held on a guide. This is assumed below.

The removal of the winding shaft 22 from the roller blind box 44 will now be described with reference to FIG 6 to 10 explains:
Fig. 6 shows the winding shaft 22 with curtain 47 still in the fully installed state, which can also be referred to as the working position. To remove the curtain 47 with the winding shaft 22, the guide rails 47 on both sides of the window are first unscrewed from the base rail 51 and removed ( Fig. 6 ). Now the outer edges of the inspection cover 45 are also free and the inspection cover 45 can be loosened from the blind box 44 (screws 53) and removed downwards. If the geometric conditions allow it, for example because the inspection cover 45 has a recess corresponding to the guide rail 47.

Now the clamps 37 of both holding elements 21 can be loosened and the winding shaft 22 together with the curtain 47 can be taken down out of the roller blind box 44 in the direction of the closing direction of the curtain 47 (downwards) Fig. 9 ). Simultaneously or finally, the winding shaft 22 together with the curtain 47 in the The level, which is defined by the closed curtain 47, is tilted and then removed to the front from the architectural opening ( Fig. 10 ).

Maintenance and repair work on the winding shaft 22 or the winding motor 34 or other, otherwise hidden elements of the shading system can now be carried out. The shading system is then reassembled in reverse order.

Fig. 11 shows the shading system in a more detailed exploded view with the guide 20, the holding element 21 and the curtain 47 (partially) wound on the winding shaft 22. Furthermore, the winding motor 34 is shown pulled out of the winding shaft 22.

In Fig. 11 the teeth 32 on the holding element 21 and the teeth 33 assigned to the winding motor 34 can also be seen. The teeth 33 of the winding motor 34 are arranged on an end face of the winding motor 34. The winding motor 34 also has a cylindrical housing 54 in the present case. At its end facing the teeth 33, the housing 54 is provided with teeth 55 projecting radially outward. At its other end, the housing 54 has polygonal, specifically octagonal, and tangentially arranged support surfaces 56. These teeth 55 and the support surfaces 56 cooperate with complementary structures on the inside 57 of the winding shaft 22 and thus represent complementary torque transmission means. They provide a rotationally fixed connection between the housing 54 and the winding shaft 22.

Alternatively, the teeth 55 or the support surfaces 56 can also be provided at both ends. The housing 54 as a whole, that is to say over its entire length, or a part of its length can also be provided with a suitable torque transmission means, for example with teeth or polygonal. Finally, it can also be sufficient if the torque transmission means or a short region along the length of the housing 54 are provided at only one end.

Another advantage resulting from the invention is described below with reference to the Fig. 12 explained in more detail. Fig. 12 shows the guide 20 and the retaining strip 51. Furthermore, shows Fig. 12 a horizontal blind 58 and a modified guide rail 59 and a blind guide 60, which may be identical to the roller shutter guide 46, which would reduce inventory. In the blind guide 60, pins 61 are guided on the end faces of the slats 62 of the horizontal blind 58 in a manner known per se. Brackets 63 of the horizontal blind 58 are attached in a suitable manner in the roller shutter box 44, for example screwed.

The shading system according to the invention can therefore be converted in a very simple manner from a roller blind into a horizontal blind or another suitable type of shading system and vice versa. For this purpose, the guide rails 46, 59 only have to be removed from the shade box 44, a type of shading system and the actual shading system and replaced by the respective other type. This not only enables the customer to change if the one type should no longer please, but also reduces the inventory at the manufacturer and manufacturer due to the large number of common parts.

Reference symbol list:

20th

guide

21

Holding element

22

Winding shaft

23

Back wall

24th

Side wall

25th

Recess

26

Tab

27

Leadership deepening

28

Guide tab

29

Guide groove

30th

Back wall

31

Grip tab

32

tooth

33

tooth

34

Winding motor

35

Console box

36

Boardwalk

37

Clamping screw

38

drilling

39

Deflector

40

screw

41

Recess

42

Window frames

43

Glass surface

44

Roller blind box

45

Revision cover

46

Guide rail

46a

Groove

47

Curtain

48

guide

49

Masonry

50

Plaster

51

Base rail

52

screw

53

screw

54

casing

55

tooth

56

Support surface

57

inside

58

Horizontal blind

59

Guide rail

60

Blind guidance

61

Cones

62

Slat

63

bracket

Claims (12)

Shading system for an architectural opening, such as a window or a door, with: a housing (44); a curtain (47); a winding shaft (22) by means of which the curtain (47) can be moved between an open position and a closed position; at least one holding element (21) detachably held on a guide (20) in the housing (44), by means of which the winding shaft (22) is mounted on its end faces in the housing (44); and guide rails (46) running in the opening and closing direction of the curtain (47), in which at least one front edge of the curtain (47), as seen in the closing direction, is guided; characterized in that the holding element (21) can be pulled out of the associated guide (20) in the closing direction of the curtain (47). Shading system according to claim 1, characterized by a guide rail (46) on each side of the curtain (47), which guides the curtain (47) during an opening and closing movement, and in that at least one of the guide rails (46) is architectural Opening is removable. Shading system according to claim 1 or 2, characterized in that the guide (20) is covered by a deflector (39). Shading system according to claim 3, characterized in that the deflector (39) has a recess (41) into which a console box (35) of the guide (20) engages, the upper side of which forms a flat surface with the deflector (39). Shading system according to one of claims 1 to 4, characterized in that the holding element (21) is releasably locked to the guide (20) by means of a clamping screw (37). Shading system according to one of claims 1 to 5, characterized in that the guide (20) and / or the holding element (21) on the one hand and a winding motor (34) on the other hand are assigned complementary torque supports, in particular interlocking teeth (32, 33). Shading system according to claim 6, characterized in that the winding motor (34) and the winding shaft (22) have complementary torque transmission means, in particular have interlocking teeth or are complementary polygonal. Shading system according to one of claims 1 to 7, that both holding elements (21) can be pulled out of the respective guide (20) in the closing direction of the curtain (47). Building with a shading system according to one of claims 1 to 8, characterized in that the housing and the guide rails are plastered. Method for dismantling a shading system according to one of claims 1 to 9 from an architectural opening with the following steps: Disassembly of an inspection cover (45) from the housing (44); then releasing the holding element (21) from the guide (20) at least on one side and pulling the holding element (21) out of the guide (20) in the closing direction of the curtain (47); simultaneous or subsequent tilting of the winding shaft (22) together with the curtain (47) in the plane of the curtain (47) and removing the winding shaft (22) from the architectural opening. Method according to claim 10, characterized in that at least one of the guide rails (46) is removed before or after the removal of the inspection cover (45). A method according to claim 10 or 11, characterized in that before or after the removal of the inspection cover (45) both guide rails (46) are removed and after the removal of the guide rails (46) and the inspection cover (45) both holding elements (21) from the The respective guide (20) is released and pulled out of the respective guide (22) in the closing direction of the curtain (47).

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