EP3115542A1 - Shading device - Google Patents

Abstract

The invention relates to a shading device (2) having a drive device (13) which has a drive element (19), a first gear (20) and a second gear (21), wherein the first gear (20) is connected to the drive element (19). a first drive shaft (22) is connected, and the first transmission (20) has a power take-off (23) to which a second drive shaft (24) is connected, which is connected to the second transmission (21) and drives this.

Description

The invention relates to a shading device with a drive device, which has a drive element, a first gear and a second gear, wherein the first gear is connected to the drive element via a first drive shaft.

Furthermore, the invention relates to a window or a door with a sash and with a glass element, which is held in the sash, wherein the glass element comprises a plurality of glass panes, and with a shading device.

It is known to install a shading device between the glass panes of a window or door. Many of these so-called interior shading products are automated and powered by a central shaft. On this sit next to the electric drive and various rewinding devices or Lamellenbehang the corresponding turning devices. In order to allow a slow pivoting of the slats and a higher speed for the extension and retraction of the curtain, appropriate gear can be installed or can be made an electronic control of the drive to allow the different speeds with only one drive. Usually, the transmission is a part of the respective turning device. The turning devices, winders and the drive thereby fill the entire area of the so-called box in which these elements of the shading devices are arranged from.

To ensure synchronicity between the wind-up and turning devices, the connection between the components must be relatively rigid. The drive device is therefore very often mounted on one side of the shading device and the shaft made in one piece. Due to the lateral installation of the drive device, the shading device has a relatively large lateral projection. Thus, the curtain is not wound up skewed, the shading device is symmetrical, so that it also has a correspondingly large overhang on the other side. This often results in very large minimum widths of the shading device.

On the other hand, however, internal shading devices are known from the prior art, in which the drive device is arranged centrally. So describes the example DE 20 2006 008 885 U1 a drive device for raising, lowering and pivoting slats of a blind, with an electric drive, to which a shaft is connected, which drives arranged on opposite sides of the drive work position bearing.

From the DE 600 17 006 T2 is also known the central arrangement of the drive.

In these central arrangements of the drives have the latter on both sides of an output, so that the two shafts - it is used in these arrangements a split shaft - can be driven by a single drive. If space is required for additional installations, this is restricted by the shaft. In this case, the size of the box is adjusted accordingly, so that the "standard box" that the company usually uses, can no longer be used.

The object of the present invention is to provide a shading device for a window or a door, in which, in addition to the components required for the basic function, further functional elements can be installed more easily.

This object of the invention is achieved with the shading device mentioned above, in which the first transmission has a power take-off, to which a second drive shaft is connected, which is connected to the second gear and drives it.

Next, the object of the invention with the aforementioned window or the aforementioned door is achieved, in which or in which the shading device is designed according to the invention.

The advantage here is that offset by the power take-off of the first gear, the second shaft to the second gear to the first shaft in the shading device, ie eccentrically or not aligned with the first shaft is arranged. It is thus created space that can be equipped with other functional elements. Thus, a shading device built into a window or a door may have a dimensional dimension used as a "standard" box box. In addition, despite the additional functional elements shading devices are realized, which are very narrow (in width) and / or formed with low height. The, the slats of a blind in the retracted state receiving box can therefore be easily integrated into a composite window, as on view dimensions with respect to the width / height of sash profiles with respect to the box need not be taken into account. Further, with this embodiment of the shading device, the gained space for further functional elements can be expanded as needed by increasing the length of the second shaft. In other words, the distance between the second gear and the drive means can be easily adjusted. Another advantage of this embodiment of a shading device is the fact that it can be dispensed with additional measures for producing the synchronicity of the rotational movement of the two gear, although the second gear is not directly, ie not directly, driven by the drive element. The synchronicity of the rotational movement is produced via the first gear.

According to a preferred embodiment of the shading device can be provided that the first gear is a planetary gear with at least one planetary gear, wherein the second drive shaft is connected to the planet gear. It can be made even more compact shading device, which can be realized without much space, the power take-off of the first transmission.

Alternatively, however, other configurations of the auxiliary drive of the first transmission are possible. In particular, the first gear can have a first bevel gear and the second gear can have a second bevel gear, wherein the first bevel gear is connected to the second bevel gear via a third, arranged between the first and the second bevel gear bevel gear. It is thus possible to divide the transmission ratio for the slower compared to lowering or raising the blind rotary motion of the turning device for the adjustment of the slats of the blind on two modules, so that the second gear made smaller and thus again space for the installation of other functional elements can be created in the shading device.

However, it should be noted at this point that the different speeds for turning the blind and the lowering or raising the blind can also be done via the drive element, if this is electronically controlled. In this case, the gearboxes serve in particular exclusively to reduce the high rotational speed of the drive element to a lower rotational speed with a high transmittable torque.

Preferably, the drive element is viewed in the horizontal direction between the two gears arranged. It can thus be provided a shading device, which in terms of their structure, i. the arrangement of the individual elements, having a higher symmetry, whereby a skewed winding the Beschattungsbehanges can be better prevented.

According to a further preferred embodiment variant of the shading device, at least one energy store, in particular an accumulator, is arranged as a functional element in the region between the first gear and the second gear, viewed in the horizontal direction. In conjunction with at least one photovoltaic element, a self-sufficient energy supply of the shading device can thus be achieved, even if the above-mentioned "standard" box is used, i. a box that does not have oversized side protrusions and / or larger heights.

Instead of or in addition to this, at least one radio module, a sensor, for example a brightness sensor, a temperature sensor, an electronic control unit, can also be arranged as a functional element in this area.

It can further be provided that the drive element, the first gear and the second gear are arranged in a common housing, thus be modular. It can thus be increased compactness of this device. In addition, the incorporation and possibly expansion of this module is easier to carry out.

Although the shading device may, in principle, also be an external shading device, it is preferably arranged between two glass panes of the window or door, since here the advantages of the shading device come to bear the most.

For a better understanding of the invention, this will be explained in more detail with reference to the following figures.

Fig. 1

einen Ausschnitt aus einem Fenster in Schrägansicht;

Fig. 2

einen Ausschnitt aus einer Beschattungseinrichtung;

Fig. 3

eine Antriebseinrichtung einer Beschattungseinrichtung;

Fig. 4

eine erste Ausführungsvariante des ersten Getriebes in Schrägansicht;

Fig. 5

eine zweite Ausführungsvariante des ersten Getriebes in Seitenansicht;

Fig. 6

eine Ausführungsvariant einer Antriebseinrichtung einer Beschattungseinrichtung.

Each shows in a simplified, schematic representation:

Fig. 1

a section of a window in an oblique view;

Fig. 2

a section of a shading device;

Fig. 3

a drive device of a shading device;

Fig. 4

a first embodiment of the first transmission in an oblique view;

Fig. 5

a second embodiment of the first transmission in side view;

Fig. 6

an Ausführungsvariant a drive device of a shading device.

By way of introduction, it should be noted that in the differently described embodiments, the same parts are provided with the same reference numerals or the same component names, wherein the disclosures contained in the entire description can be mutatis mutandis to the same parts with the same reference numerals or component names. Also, the location information chosen in the description, such as top, bottom, side, etc. related to the immediately described and illustrated figure and these position information in a change in position mutatis mutandis to transfer to the new location.

In Fig. 1 a section of a window 1 is shown. The window 1 has a shading device 2.

In the following, only the window 1 or the shading device 2 in connection with the window 1 will be described. It should be noted, however, that the shading device 2 can also be attached to or in doors for such shading devices 2 are provided, in particular patio doors or balcony doors.

It should also be pointed out that, in the following, the shading device 2 will be described as being arranged in the window 1. However, the shading device 2 can also be arranged outside (relative to the installation position of the window 1), that is to say in front of the window 1.

The window 1 has a sash 3 of a plurality of interconnected profiles 4, as is known per se. In the sash 3, a glass element 5 is held. The glass element 5 has a plurality of glass panes 6.

There is also the possibility that the glass element 5 is frameless, so has no casement 3, especially if the shading device 2 the window 1 - as stated above - is set.

The glass element 5 has an insulating glass element 7 with two or more glass panes 6 which are separated from each other by at least one spacer 8. At the side of the window 1 pointing outwards in the installed state, the glass element 5 has a wing element 9, which can be pivoted about a horizontal axis and / or has a wing element frame 10, in which at least one further glass pane 6 is held, to form a so-called composite window is. The wing member 9 is in the closed state sealingly against the sash 3 of the window 1. For this purpose, if appropriate, the casement 3 and / or the wing element 9 may have a peripheral web 11. It is thus created more space for the installation of the shading device 2 between the sash 3 and the wing element frame 10.

But it is also the reverse arrangement possible, in which the wing member 9 is not arranged on the outside of the sash frame 3, but inside, so that the sash member frame 10 is disposed with the window closed between the frame and the sash 3. Since such composite windows are known from the prior art, reference should be made to the relevant prior art to avoid repetition in terms of constructive details.

The shading device 2 in front view is in Fig. 2 shown.

The shading device 2 is in particular an internal blind, which has slats 11 as a curtain. In principle, however, other hangings, such as a Venetian blind or a roller shutter (especially in one, the window 1 superior shading device 2) possible, so that is not to be understood as a blind design training.

The shading device 2 comprises a plurality of fins 11, a right and a left turning device 12 and / or Aufzieh- and lowering device for rotating turning or tilting of the slats 11 and / or lowering and mounting the curtain, in particular the slats, and a drive device 13. Die Drive device 13 is operatively connected via a right drive axle 14 and a left drive axle 15 with the turning devices 12 and / or Aufzieh- and lowering devices, so that via the drive means 13, a rotational movement generated therein is transmitted to the turning devices 12 and / or Aufzieh- and lowering devices, thus the lifting, lowering and turning turning or tilting of the slats 11 is made possible.

In general, the lamellae 11 may be formed by all known from the prior art slats 2, so for example by slats 2 with oval or z-shaped profile cross-section or by so-called Lichtlenklamellen. In particular, in Lichtlenklamellen whose gentle and accurate turn is advantageous, especially if they are controlled automatically via light sensors, including the shading device 2 may also have at least one light sensor. However, the at least one light sensor can also be mounted independently of the shading device 2 and be operatively connected to the shading device, for example via electrical lines.

The turning devices 12 and / or winding and lowering devices can be designed in particular as so-called tape reels. In each of these is an elevator belt 16 by the lifting or lowering of the slats 11 up or unwound. The elevator belts 16 can be connected to a bottom rail 17, which can form the lowest end of the curtain.

Depending on the width of the curtain or the slats 11, two or more turning devices 12 and / or winding and lowering devices or tape reels 7 can be arranged for a curtain 6. A part of these can successively on the left drive axle 14 and the other part one behind the other on the right drive axle 15 - the drive means is preferably arranged centrally - be arranged.

The individual blades 11 are held on cords 18, which may be formed, for example, by two individual cords per right or left side of the shading device 2 or by a so-called ladder cord. It is also possible (especially in the case of superior shading devices 2) that the slats 11 are guided by means of guide rails, which are respectively arranged laterally of the slats, wherein the slats 11 each have in their edge regions guide elements which project into the guide rails.

There is also the possibility that each of the right and the left side more than one turning devices 12 and / or raising and lowering devices is assigned, for example, to divide the curtain with respect to the turning of the slats 11 in two superposed Teilbehänge so as to allow different turning position of the slats 11 of the upper and the lower Teilbehanges.

The turning devices 12 and / or winding and lowering devices may be formed according to the prior art.

In Fig. 3 the drive device 13 is shown schematically.

The drive device 13 comprises a drive element 19, a first transmission 20 and a second transmission 21.

The drive element 19 is in particular an electric motor, which allows a change in the direction of rotation.

The drive element 19 is operatively connected to the first transmission 20 via a first drive shaft 22 and drives it. The first gear 20 in turn has in addition to the connection for the first drive shaft 22 and a power take-off 23. At this power take-off 23, a second drive shaft 24 is connected. The second drive shaft 24 is operatively connected to the second gear 21 and drives it. Depending on the length of the second drive shaft 24, this can also be arranged guided one or more times.

Preferably, the drive element 19 is arranged in a horizontal direction between the first gear 20 and the second gear 21. The auxiliary drive 23 of the first gear 20 is thus preferably arranged on that side at which it is connected to the drive element 19 via the first drive shaft 22.

As in further Fig. 3 shown in phantom, the drive element 19, the first gear 20 and the second gear 21 may be arranged in a common housing 25.

The first drive shaft 22 can at the same time also the drive axle 14 (FIG. Fig. 2 ) form.

It is also possible that the first gear 20 is a part of in Fig. 2 illustrated right turning device 12 and / or Aufzieh- and lowering device and / or the second gear 21 is a part of in Fig. 2 illustrated left turning device 12 and / or Aufzieh- and lowering device forms or form. In this case, the drive means 13, which is arranged centrally or between the two turning devices 12 and / or raising and lowering devices, comprises only the drive element 19, which may also be arranged in a housing 25. If the second gear 21 forms part of the left turning device 12 and / or winding and lowering device, the second drive shaft 24 can also form the second drive axle 15 at the same time.

In Fig. 4 a first embodiment of the first transmission 20 is shown. This is as a planetary gear with an internally toothed ring gear 26, a centrally located externally toothed sun gear 27 and at least one externally toothed planetary gear 28 (preferably more than one planetary gear 28 are arranged, for example two or three or four), which is arranged between the ring gear 26 and the sun gear 27 and is operatively connected to these formed. The planetary gear 28 and the planetary gears 28 are arranged on planetary axis (s) of a planetary carrier not shown, which are preferably connected to the housing 25, so that the housing 25 can form at least one part, in particular the planet carrier.

The first drive shaft 22 is rotatably connected to the sun gear 27.

In the preferred embodiment, the or one of the planet gears 28 forms the power take-off 23, so that planetary gear 28 is rotatably connected to the second drive shaft 24, in particular arranged on this. In this case, this planetary gear 28 is not arranged on a separate planetary carrier but forms the second drive shaft 24 at the same time the planetary axis.

The second transmission 21 ( Fig. 3 ) may also be formed as a planetary gear with a sun gear, a ring gear and one or more planetary gears. In this case, the second drive shaft 24 may be connected to the sun gear of the second transmission 21, in particular the sun gear on the second drive shaft 24 rotatably disposed.

In Fig. 5 is a variant of the power take-off 23 of the first gear 20 ( Fig. 3 ). In this embodiment, the first gear 21 has a first bevel gear 29 for this purpose. The second gear 21 has a second bevel gear 30. To transmit the rotational movement from the first gear 20 to the second gear 21, a third bevel gear 31 is disposed between the first and second bevel gears 29, 30, which is in meshing engagement with both the first and the second bevel gear 29, 30. The third bevel gear 31 is arranged orthogonal to the first and second bevel gears 29, 30.

Optionally, this bevel gear can be arranged in a (own) housing 31.

The first gear 20 and the second gear 21 may be constructed at least approximately the same.

As in particular from Fig. 3 can be seen, the second drive shaft 24 is eccentrically arranged by the formation of the drive means 13 with the power takeoff 23, the first drive shaft 24, that is not in the extension of the axial direction of the first drive shaft 22. This is between the second gear 21 and the drive element 19, if this is arranged between the two gears 20, 21, or between the second gear 21 and the first gear 20, the drive element 19 is arranged in Fig. Right of the first gear 20, a free area 33 created. This free area 33 can be used to arrange further functional elements of the shading device 2, such as a radio module and / or at least one sensor for various automated processes in the shading device 2.

This area 33 can preferably be used to arrange at least one energy store 34 for storing electrical energy. This is advantageous if the shading device 2 has at least one photovoltaic element 35, as shown in FIG Fig. 1 is shown. With the help of this photovoltaic element 35, solar energy is known to be converted into electrical energy. This can then be stored in the energy store 34 for times when the sun is not shining. The self-sufficiency of the shading device 2 with respect to the supply of electrical energy can thus be improved.

The described shading device 2 has the advantage that these additional functional elements do not have to be arranged in a side region of the shading device 2 for reasons of space, but that they can be arranged in the region 33 despite the use of a standard size of the shading device 2.

For the sake of completeness, it should be noted that the at least one photovoltaic element can be arranged on the sun-facing surface of a box 36 of the shading device 2. The box 36 is a profile element, in which the curtain of the shading device 2 is arranged in the wound state. Alternatively, instead of the box 36, a so-called upper rail can be used, in which the drive device 13 is arranged, and optionally at least one photovoltaic element is arranged on its surface facing the sun. In this embodiment will be the fins 11 are not drawn into a box but raised only below the top rail.

In Fig. 6 is a variant of the drive device 13 for the shading device 2 ( Fig. 1 ).

The drive device 13 in turn comprises the drive element 19, the first gear 20 and the second gear 21. Unless otherwise stated below, reference should be made to the above statements to avoid repetition of these components of the drive device 13.

The drive device 13 preferably forms a structural unit 37, which is optionally arranged in a separate housing.

The drive element 19 is off-center - with respect to the longitudinal central axis through the assembly 37 - arranged, as is apparent from Fig. 6 is apparent. The drive element 19 is arranged closer to the second gear 21 than the first gear 20.

In the direction of the second gear 21 (left gear), an intermediate piece 38 can be arranged between the drive element 19 and the second gear 21, wherein the second gear 21 and the drive element 19 each abut against one side of the intermediate piece 38. About the intermediate piece 38, the rotational movement of the drive element 19 is transmitted to the second gear 21, including in the intermediate piece 38 a in Fig. 6 not shown drive shaft is arranged. However, the intermediate piece 38 can also form this drive shaft.

The second transmission 21 in turn has the power take-off 23, which is arranged outside the longitudinal central axis by the drive device 2. With the auxiliary drive 23, the drive shaft 24 is connected.

On the side of the first transmission 20 (right transmission in Fig. 6 ) is also an intermediate piece 39 is arranged, which is on the one hand connected to the second gear 21, in particular directly connected, and on the other hand connected to the drive shaft 24. About the intermediate piece 39 can with respect to the longitudinal center axis through the assembly 37 off-center Drive the first gear 20 are converted back into a central drive.

But it is also possible that is connected via the drive shaft 24 directly to the first gear 20.

Like from the Fig. 6 can be seen, is formed by the formation of the drive means 2, a relatively large area 33 between the drive element 19 and the first gear 20 for the arrangement of at least one functional element in the drive means 2.

The first and the second transmission 20, 21 can differ only in that the second transmission 21 makes the Erstuntersetzung and from there the auxiliary drive leads to the first transmission 20. The second stage is the same for both transmissions 20, 21 in order to have a correspondingly high degree of synchronicity, in particular 100% synchronicity, of the turning and winding devices on both sides of the shading device 2.

In the embodiment of the drive device according to Fig. 6 is in each case a turning device 12 and / or winding and lowering device with the first and second gear 20, 21 via the drive axles 14, 15 (FIG. Fig. 2 ) connected.

In a variant of the drive device 2 according to Fig. 6 It can be provided that the intermediate piece 38 forms part of the second gear 21 and the intermediate piece 39 forms part of the first gear 20. The first gear 20 and the second gear 21 may thus be formed in two stages, wherein the first stage of the first gear 20, the intermediate piece 29 and the first stage of the second gear 21, the intermediate piece 38 form. Via the first stage of the gear 20, 21, a reduction can be achieved, with the speed that comes from the drive member 19 to reduce. It can thus be achieved a reduction of noise emission. In addition, it can also be achieved that no or lower imbalances occur even at higher speeds of the drive element 19.

The division into two gear stages also has the advantage that the load moments only half load on a gearbox, resulting in a lighter and cheaper design.

Furthermore, a transmission design for different sizes of shading devices 2 can be used.

Preferably, after the drive device 13, a transmission with a reduction is installed, since thus no or lower imbalances occur even at higher speeds of the drive device 13.

The embodiments show possible embodiments of the shading device 2 and the window 1 or the door, it being noted at this point that various combinations of the individual embodiments are possible with each other.

For the sake of order, it should finally be pointed out that, for better understanding of the construction of the shading device 2 or of the window 1, these or their components have been shown partially unevenly and / or enlarged and / or reduced in size.

REFERENCE NUMBERS

1 window 31 bevel gear 2 shading device 32 casing 3 casement 33 Area 4 profile 34 energy storage 5 glass element 35 photovoltaic element 6 pane 36 box 7 insulating glass element 37 unit 8th spacer 38 connecting piece 9 wing element 39 connecting piece 10 Wing element frame 11 lamella 12 turning device 13 driving means 14 drive axle 15 drive axle 16 Lifting tape 17 bottom track 18 cord 19 driving element 20 transmission 21 transmission 22 drive shaft 23 PTO 24 drive shaft 25 casing 26 ring gear 27 sun 28 Planentenrad 29 bevel gear 30 bevel gear

Claims (8)

Shading device (2) with a drive device (13) which has a drive element (19), a first transmission (20) and a second transmission (21), wherein the first transmission (20) with the drive element (19) via a first drive shaft (22), characterized in that the first transmission (20) has a power take-off (23) to which a second drive shaft (24) is connected, which is connected to the second transmission (21) and drives this. Shading device (2) according to claim 1, characterized in that the first gear (20) is a planetary gear with at least one planetary gear (28), wherein the second drive shaft (24) is connected to the planetary gear (28). Shading device (2) according to claim 1, characterized in that the first gear (20) has a first bevel gear (29) and the second gear (21) a second bevel gear (30), wherein the first bevel gear (29) with the second bevel gear (39) via a third, between the first and the second bevel gear (29, 30) arranged third bevel gear (31) is interconnected. Shading device (2) according to one of claims 1 to 3, characterized in that the drive element (19) viewed in the horizontal direction between the two gears (20, 21) is arranged. Shading device (2) according to one of claims 1 to 4, characterized in that in a region (33) between the first gear (20) and the second gear (21) - viewed in the horizontal direction - at least one energy store (34) and / or at least one radio module is arranged. Shading device (2) according to one of claims 1 to 5, characterized in that the drive element (19), the first gear (20) and the second gear (21) are arranged in a common housing (25). Window (1) or door with a casement (3) and with a glass element (5) held in the casement, the glass element (5) comprising a plurality of glass panes (6), and a shading device (2), characterized in that the shading device (2) is designed according to one of the preceding claims. Window (2) or door according to claim 7, characterized in that the shading device (2) is arranged between two glass panes (6).

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