EP4365403A2 - Insulating glass unit with integrated sun blind or blackout blind - Google Patents

Abstract

The invention relates to an insulating glass arrangement (10) with an inner glazing (1) and an outer glazing (2) and with a motor-driven sun protection or darkening curtain (3) integrated in the space between the panes (4), wherein - a winding shaft (5) with the curtain (3) attached to it that can be wound up and unwound is arranged on a rotatable axis, - the free end (7) of the curtain (3) is connected to a cross bar (6), - the cross bar (6) is connected at its two ends (15, 16) to a driver (17, 18) each of which is coupled to the rotatable winding shaft (5) via at least one pulling element (19), - an electric motor drive (20) causes the cross bar (6) to advance and the winding shaft (5) to rotate at the same time in one direction or the other.

Description

The invention relates to an insulating glass arrangement with an inner glazing and an outer glazing arranged at a distance therefrom and with a motor-driven sun protection or blackout curtain according to the preamble of claim 1 integrated in the preferably hermetically sealed space between the panes.

Such so-called composite windows or composite doors or sliding doors are well known and in use. A single pane of glass can be used as the inner glazing and a single pane of glass can also be used as the outer glazing. Composite windows generally have good soundproofing and thermal insulation properties due to the larger air space between the panes.

The installation of sun protection or black-out blinds or roller blind mechanisms in the space between the panes of insulating glass is particularly attractive on the one hand because there are no external attachments on the window that would spoil the aesthetics of the window and the mechanism is completely encapsulated, meaning it is completely protected against dirt and mechanical damage. On the other hand, the installation of sun protection or black-out blinds in the space between the panes of insulating glass poses particular problems due to the limited space available. The entire mechanism must be very compact, but it must also be robust and fail-safe, because with conventional systems it is usually no longer accessible after installation, and it must still be fully functional.

If sun protection or blackout curtains are to be used in this way for inclined windows, it is particularly important that the curtain, for example a film or a roller blind, i.e. during the closing process, is always taut and does not sag, because a sagging curtain in inclined insulating glass panes would rest on the glazing below and greatly increase the friction when rolling up and down, thus significantly impairing the function.

However, this is not easy to achieve. It is already known in such known roller blind mechanisms for installation in the space between the panes that a tension rod attached to the free end of the blind is moved using tension elements such as toothed belts to roll up and down the blind, with the tension elements and winding axis being driven by a common electric motor with a reversible direction of rotation when rolling up and down. However, because the winding diameter changes when the roller blind is rolled up and down, but the tension rod moves synchronously with the angle of rotation of the winding axis, a compensating element is required, for example in the form of a torsion spring between the winding axis and the winding roller. However, this takes up a considerable amount of space.

In the EP 1 273 754 A1 and the DE 200 21 691 U1 A motor-driven roller blind device integrated into an insulating glass pane has already been proposed, with upper and lower shafts, one of which can be driven by a miniature electric motor and the other of which carries a winding body for a roller blind, and wherein the upper and lower shafts on both sides of the insulating glass pane are coupled in a synchronous, rotating manner by toothed belts and gears or similar means, and the toothed belts or the like are connected to the ends of the roller blind's pull rod on both sides. The winding body is arranged on its shaft in a torsionally elastic pre-tensioned manner via a torsion spring in order to allow compensating rotational movements.

The DE 20 2005 007 921 U1 concerns a window pane suitable for both vertical and inclined windows and intended in particular for installation in the cavity between insulating glass panes. Roller blind mechanism with two electric motors with opposite working direction of rotation.

From the DE 197 51 255 A1 is a composite window with an inner glazing and an outer glazing arranged at a distance therefrom, wherein the inner glazing has an insulating double glass and a shading device is installed adjacent to the outer glazing.

The EP 0 483 528 A1 relates to an insulating glass arrangement with a spacer and two panes bonded to the spacer and a sun protection film arranged between the panes and movable up and down. The insulating glass arrangement further comprises a drive device acting in an upward direction on the sun protection film and a counter-pull device acting in a downward direction on the sun protection film.

The EN 10 2009 009 504 B3 relates to a multi-pane insulating glass for building windows, wherein three panes are bonded together to form a solid composite by means of spacers running around the edges, forming a gap between the panes, the middle pane is shorter than the two outer panes, so that an installation space is formed between the outer panes, in the installation space a winding shaft with a curtain is arranged, which can be adjusted into the gap between the middle pane and an outer pane.

From the US 2002/053410 A1 an insulating glass pane is known consisting of two spaced-apart glass panes which are sealingly connected at their periphery to form a sealed space in which a roller blind device is enclosed.

Based on the disadvantages described above, the object of the invention is to create a particularly simple, compact and particularly trouble-free insulating glass arrangement with a motor-driven sun protection or blackout curtain suitable for installation in a cavity between the panes.

This object is achieved with an insulating glass arrangement according to claim 1.

The invention relates to an insulating glass arrangement with an inner glazing and an outer glazing arranged at a distance therefrom and with a motor-driven sun protection or blackout curtain integrated in the preferably hermetically sealed space between the panes. This curtain can also be referred to as a film or roller blind. This insulating glass arrangement can be an arrangement for a window or a door, for example a sliding door.

A winding shaft or a winding body with the attached winding and unwinding curtain is arranged on a rotatable axis, whereby the free end of the curtain is connected to a cross bar.

The cross bar is connected at both ends to a driver each, which is coupled to the rotating winding shaft via at least one tension element, in particular for a synchronous movement. The cross bar can also be referred to as a load beam or tension rod.

An electric motor drive causes the axis driving the winding shaft to rotate and the cross bar to be simultaneously advanced in one direction or the other. An electric motor is particularly preferred for this purpose. It is also conceivable that the drive Advancement of the cross bar and simultaneous rotation of the winding shaft.

According to the invention, the at least one traction element is designed as an endless toothed belt or endless chain drive arranged on both sides of the curtain or as a band-shaped traction means, in particular a traction film, wherein the at least one traction element is guided over ball chain or toothed belt wheels located on both sides of the winding shaft or over winding drums and over deflection elements also designed as ball chain or toothed belt wheels or as a winding drum and arranged away from the axis of the winding shaft.

Alternatively, according to the invention, the at least one traction element is designed as threaded spindles or ball screws, with which the two ends of the cross bar are coupled via spindle nuts, and which are each connected to the ends of the rotatable axis of the winding shaft via gears, in particular bevel gears.

The curtain is connected to the crossbar. The sides of the crossbar are preferably connected to the endless toothed belt or the endless chain drive or a ball chain by means of a clamp connection. A gear unit moves the belt or ball chain so that the crossbar can be moved up and down.

However, it is also conceivable according to the invention that a band-shaped traction means, in particular a traction film, is provided which is wound on a winding drum. This is not an endlessly rotating traction means, but a traction means which is wound up and unwound on the winding drum.

A particularly advantageous design is one in which the material of the curtain and the material of the tension film are essentially identical.

It is conceivable that the tension film is made from a part of the curtain.

This is particularly advantageous because the curtain, which is designed as a film, and the tension element (tension film) can be manufactured in just a few processing steps with almost no waste. Conversely, any waste that may arise during the production of the curtain can also be used to produce the tension element.

Due to this design, the mechanics of the arrangement are simplified. This is because it consists of upper and lower shafts that are coupled so that they can rotate synchronously via toothed belts or chains and gears or similarly acting elements on both sides, with one of the shafts, which can also be split, being assigned an electric motor drive or an electric motor as the drive element. In the version with a roller blind, the other shaft carries the winding shaft or the winding body of the blind.

If the curtain is made of foil, it can be almost completely integrated into the frame profile. Only the crossbar is still perceptible or recognizable. Due to this integration of the curtain (foil) into the frame profile, a wide variety of installation situations are conceivable. In particular, the customer can decide from which side the shading should take place.

For example, a privacy screen (or shade) can be installed from bottom to top. Other options would be from left to right or in the reverse order.

Due to the compact size, it is possible to install the shading system (roller blind) in any desired side of the profile as required/desired. The system according to the invention therefore offers advantages over competing systems.

In an advantageous embodiment of the invention, the electric motor drive drives a shaft which acts at both ends on the deflection elements designed as ball chain or toothed belt wheels or as a winding drum.

The motor output shaft of the electric motor drive can be arranged parallel to this rotatable shaft.

The use of ball chains is advantageous because comparatively smaller deflection radii are possible, which saves installation space. In addition, the ball chain offers better design options when laying it, for example the ball chain can also be laid offset without affecting the installation space.

According to an advantageous embodiment of the invention, the deflection elements designed as ball chain or toothed belt wheels or as a winding drum on opposite sides of the curtain are coupled to one another by means of a multi-part rod, whereby two tubular elements of the rod can be rotated against one another in order to align the position of the ball chain or toothed belt wheels with one another for the synchronization of the drives.

In a further development of the invention, the two tubular elements of the rod, which can be adjusted or rotated relative to one another, can be secured in a certain position by means of a screw connection, in particular a clamping screw or grub screw.

According to an advantageous variant, a shaft driven by the electric motor drive carries a gear wheel at each of its two ends for Drive of the threaded spindles or ball screws and the winding shaft can be rotatably mounted relative to the shaft.

According to a further embodiment, the cross bar has a substantially U-shaped profile for receiving the curtain, wherein the free end of the curtain can be received, in particular clamped, in a receiving means during assembly.

The receiving device can be inserted into the U-shaped profile.

Furthermore, the curtain or the free end of the curtain can be mounted so as to be tiltable, rotatable or pivotable about an axis defined by the projection or extension, in particular bolt, preferably steel bolt, of the cross bar, which is guided in at least one groove of the preferably substantially U-shaped profile.

This means that the curtain can be accommodated in the lower area. Compensating for tolerances and inaccuracies is easy during assembly. This is because the curtain has a certain amount of play to compensate for inaccuracies due to the possible rotation around the tilt, rotation or swivel axis. The pivot point of the curtain or film holder defined by the projection or extension, in particular the bolt, is guided in the groove of the cross bar and allows compensation in the space provided.

When the description of the present invention refers to "downwards" or "upwards", this refers to the directions of movement that correspond to normal usage when installed vertically or at a slight incline. However, horizontal installation of the insulating glass arrangement according to the invention is also possible.

In this case, the terms "upwards" and "downwards" lose their original meaning and are to be understood accordingly.

In particular, it can be provided that the projection or extension, in particular bolt, is arranged approximately centrally between the ends of the receiving means. This allows maximum play or maximum compensation to be achieved towards both ends of the curtain.

According to a further advantageous embodiment of the invention, the receiving means receives the curtain or the free end of the curtain in a form-fitting manner between two legs, whereby one leg has several conical projections which penetrate the curtain after assembly and can be received in corresponding counter-receptacles in the other leg of the receiving means. The connection of the curtain or the film to the receiving means is made via these projections, which are designed as points. These points pierce the film during assembly and dip into the film holder in a form-fitting manner.

Preferably, the receiving means is formed in one piece and can be made of plastic or aluminum or steel.

According to an alternative embodiment of the invention, it is also conceivable that the receiving means receives the curtain by means of an adhesive and/or welded connection in a material-locking manner between two legs of the receiving means.

A further advantageous embodiment of the invention provides that the cross bar has a receptacle for a seal or sealing lip, whereby the seal, which is preferably designed as a sealing lip, can be pushed into the receptacle during assembly and is arranged on the side of the load beam opposite the curtain after assembly. The seal can be made of plastic, an elastomer or aluminum. The degrees of freedom of the installed seal or sealing lip in the crossbar allow for compensation in order to compensate for any tolerances. This ensures that the roller blind closes opaquely to the frame.

According to a further development of the invention, the seal can be designed to be essentially T-shaped and can be inserted into the essentially rectangular receptacle in such a way that it protrudes at least partially from the load beam after assembly. This creates a particularly effective seal or sealing lip.

According to one embodiment of the invention, a first permanent magnet can be arranged in an inner cavity of a tube section of the winding shaft and an outer profile, in particular a square tube, has a second permanent magnet which, when mounted, surrounds the first permanent magnet in such a way that the magnetic poles of the permanent magnets face each other to form a magnetic centering, so that the distance between the tube section of the winding shaft and the outer profile remains essentially constant due to the magnetic forces and the winding shaft is held in position via the magnetic centering. In this way, bending of the winding shaft under excessive load is avoided.

The polarization is designed in such a way that the tube is arranged in a floating manner; this can be an attractive or repulsive interaction of the poles, since the magnetic forces act essentially radially around the inner tube.

The tubular section of the winding shaft and/or the outer profile can consist essentially of steel or of plastic containing magnetic components.

The winding shaft can be accommodated in a box-shaped housing, whereby the housing with the winding shaft arranged therein can be inserted into the insulating glass arrangement, in particular can be plugged onto a frame of the arrangement, and can preferably be secured in the mounted position by means of a clip connection. In this way, the housing with the winding shaft can be removed for maintenance purposes or in the event of a defect without dismantling the glazing. Curtains can also be easily replaced without having to dismantle the entire arrangement.

It is conceivable that a drying agent, in particular a drying agent containing silica gel and/or zeolites, is provided in the space between the inner and outer glazing. In windows, this is known as a "warm edge".

The glazing can be accommodated in a frame of the insulating glass arrangement, which has further functional areas. On the one hand, the glass panes are held securely and preferably hermetically sealed in the frame. On the other hand, the frame has various functional areas, for example as a holder or guide for the traction elements, in particular the ball chain or toothed belt wheels or threaded spindles. The drivers or the spindle nuts coupled to the cross bar can also be accommodated in a guide on the frame. The drying agent can be introduced in a further functional area of the frame. A further functional area of the frame can have receiving means for receiving the box-shaped housing with winding shaft.

The insulating glass assembly may have a hermetically sealed plug for the power supply of the insulating glass assembly. The plug connection must be moisture-tight. This is done by means of a rubber seal on the plug collar or plug. If this Arrangement in the space between the panes allows cables to be led to the outside, thus creating an entry opening for moisture, for example, but the plug connection still remains hermetically closed or sealed.

A particularly advantageous embodiment of the invention provides that the insulating glass arrangement is operated by means of a wireless signal transmission device which is connected to a control device of the insulating glass arrangement. This wireless signal transmission device, also known as an air interface, can be, for example, a WiFi or Bluetooth or Zigbee interface. A smartphone/tablet or other operating concept for smart home components can be provided as the central operating element for the arrangement.

In particular, the electronics of the insulating glass arrangement are designed in a modular manner. This means that several operating concepts can be implemented. The insulating glass arrangement can be operated using an air interface.

This air interface can be used to connect several insulating glass units to form a group and control them centrally. The air interface or a central control unit (e.g. wall-mounted) can be used for this purpose.

The configuration of the connected insulating glass arrangements can be carried out via a graphical user interface or application software. This also makes it possible to adjust curtains of different lengths, especially for different window heights.

If the curtain of the insulating glass arrangement is calibrated, in particular adjusted to the window height, it is possible to approach the desired position at increased speed. Before the target position is reached, the speed is reduced and a gentle stop is possible.

The central control unit enables the connected insulating glass arrangements to be moved. The position of the blinds can be continuously adjusted between open and closed using an elongated control element. The direct approach to the end positions, open and closed, is made possible using buttons.

Furthermore, freely selectable saved positions can be accessed directly.

The central control unit enables integration into a smart home system.

In particular, the insulating glass arrangement can have a sensor surface arranged on a glazing of the insulating glass arrangement for contactless operation and/or a capacitive sensor surface.

A transparent sensor surface attached to the window enables contactless gesture control of the blind. A transparent sensor surface attached to the window enables capacitive touch operation of the blind.

A particularly advantageous embodiment is one in which the insulating glass arrangement has a battery-operated power supply, in particular a rechargeable one, wherein the rechargeable batteries can preferably be charged contactlessly by means of an inductive charging system.

Due to the low energy requirement for moving the blinds, the electronics can be operated using a battery. An inductive charging system makes it possible to charge the battery contactlessly when the window is closed or tilted.

The winding shaft or the winding body can be arranged on its shaft via a spring, in particular a torsion spring, wherein the winding shaft is rotatable relative to the axis and is connected to the axis via the torsion spring, which prestresses the winding shaft relative to the axis in the winding direction.

The torsion spring and the winding shaft are firmly connected to the connecting pieces. The connecting piece is firmly connected to a ball wheel. The torsion spring is pre-tensioned by turning the connecting piece anti-clockwise or clockwise. The result of this is that the curtain winds up onto the winding shaft. This continues until the cross bar reaches its stop position and the curtain is wound up. During operation, i.e. the curtain moves downwards, the ball chain with the cross bar and curtain moves downwards.

Alternatively, it is conceivable that the torsion spring is pre-tensioned once by turning the connecting piece anti-clockwise or clockwise so that the desired tension in the curtain is achieved.

During operation, i.e. particularly over the travel path of the curtain, the preset spring tension of the torsion spring and thus the tension of the curtain remains almost the same. Minor differences arise due to the change in the winding diameter of the curtain when winding and unwinding, as this causes a change in the lever arm.

This has the advantage that the spring only needs to be loaded as much as is necessary or desired. Otherwise, the spring would be unnecessarily heavily loaded during operation and could reach the load limit over long travel distances.

This also allows stronger torsion springs to be used, which can be used to set a higher preload. A stronger spring also has the advantage that the spring length changes only slightly during operation due to the preload, meaning less installation space is required.

In addition, this allows a drive motor with less power consumption / torque to be used.

The crossbar can have a spring element at each end to ensure even tension of the curtain after installation. This creates a spring-loaded balance through the spring element attached on both sides, which ensures even tension of the curtain. This is particularly important for wide windows. In particular, a shaped spring plate can be provided. Tension-compression or torsion springs can of course also be used.

Further aims, advantages, features and possible applications of the present invention will become apparent from the following description of an embodiment with reference to the drawing. All described and/or illustrated features form the subject matter of the present invention on their own or in any meaningful combination, regardless of their summary in the claims or their reference back to them.

Figur 1

eine Darstellung der Isolierglasanordnung im Schnitt,

Figur 2

1. a) den Behang mit Aufnahmemittel in einer offenen Stellung,
2. b) den Behang mit Aufnahmemittel in geschlossener Stellung,
3. c) einen Querbarren, d) den Querbarren mit Aufnahmemittel in einer ersten Position und e) den Querbarren mit Aufnahmemittel in einer zweiten Position,

Figur 3

ein vergrößerte Darstellung gemäß Figur 2d),

Figur 4

das Aufnahmemittel mit Behang und Bolzen,

Figur 5

eine Detailansicht von Umlenkorganen und einer mehrgeteilten Stange,

Figur 6

eine Ausführungsform mit einem Kettentrieb,

Figur 7

eine magnetische Lagerung der Wickelwelle,

Figur 8

die magnetische Lagerung gemäß Figur 7 in einer perspektivischen Darstellung,

Figur 9

die Wickelwelle mit Torsionsfeder in einer Schnittdarstellung,

Figur 10

den Behang mit Aufnahmemittel und Formfederblech,

Figur 11

eine Schnittdarstellung einer Seitenansicht der Isolierglasanordnung,

Figur 12

die Detailansicht eines hermetisch abgedichteten Steckers und

Figur 13

eine Darstellung der Isolierglasanordnung mit einem als Zugfolie ausgebildeten Zugorgan in einer Draufsicht a), in einer Seitenansicht b) und in einer perspektivischen Ansicht c).

Some of them show schematically:

Figure 1

a cross-sectional view of the insulating glass arrangement,

Figure 2

1. a) the curtain with the support means in an open position,
2. b) the curtain with the support means in the closed position,
3. c) a cross bar, d) the cross bar with receiving means in a first position and e) the cross bar with receiving means in a second position,

Figure 3

an enlarged view according to Figure 2d ),

Figure 4

the support with curtain and bolt,

Figure 5

a detailed view of deflection elements and a multi-part rod,

Figure 6

an embodiment with a chain drive,

Figure 7

a magnetic bearing of the winding shaft,

Figure 8

the magnetic bearing according to Figure 7 in a perspective view,

Figure 9

the winding shaft with torsion spring in a sectional view,

Figure 10

the curtain with mounting means and shaped spring plate,

Figure 11

a sectional view of a side view of the insulating glass arrangement,

Figure 12

the detailed view of a hermetically sealed connector and

Figure 13

a representation of the insulating glass arrangement with a tension element designed as a tension film in a plan view a), in a side view b) and in a perspective view c).

In the following figures of the drawing, identical or equivalent components are provided with reference symbols based on an embodiment in order to improve readability.

Figure 1 shows an insulating glass arrangement 10 with an inner glazing 1 and an outer glazing 2 arranged at a distance therefrom. The glazings 1, 2 and the space 4 between the glazings 1, 2 are in Figure 11 to recognize.

In the present case, a motor-driven sun protection or blackout curtain 3 is integrated into the hermetically sealed space 4 between the glazings 1, 2. This curtain 3 can also be referred to as a roller blind or film.

A winding shaft 5 with the winding and unwinding curtain 3 attached to it is arranged on a rotatable axis.

The winding shaft 5 is rotatably mounted on a holder fixed in the installation space. By rotating the winding shaft 5, the curtain 3 can be moved in the space 4 between the inner 1 and outer pane 2.

According to the embodiment according to Figure 1 and 11 is the installation space and the winding shaft 5 in the upper end area of the Insulating glass composite. The curtain 3 can be adjusted by operating the winding shaft 5 from an upper release position to a lower position in which it is completely lowered.

The free end 7 of the curtain 3 is connected to a cross bar 6, which is connected at its two ends 15, 16 to a driver 17, 18. The drivers 17, 18 are coupled via at least one traction element 19 to the rotatable winding shaft 5 for a synchronous movement, as Figure 1 shows.

How Figure 1 and also the Figures 5 and 6 As shown further, an electric motor drive 20, in this case an electric motor, causes the rotation of the axis driving the winding shaft 5 and the simultaneous advance of the cross bar 6 in one direction or the other.

As the detailed view according to Figures 2 c), d) and e) and Figure 3 show, the cross bar 6 has a substantially U-shaped profile 8 for receiving the curtain 3. During assembly, the free end 7 of the curtain 3 is received in a receiving means 9. The receiving means 9, which is preferably formed in one piece, can be made of plastic or aluminum or steel.

In a Figure 2 a) and b) and Figure 3 In the variant shown, the receiving means 9 receives the curtain 3 in a form-fitting manner between two legs 21, 22. For this purpose, one leg 21 has several conical projections, so-called tips 23, which pierce or penetrate the curtain 3 during assembly and therefore extend through the curtain 3 to the opposite side after assembly and are received there in corresponding counter-receptacles 24 in the other leg 22 of the receiving means 9. The connection between the curtain 3 and the receiving means 9 is therefore made via the tips 23 shown.

These tips 23 pierce the curtain 3 during assembly and fit into the counter-receptacles 24 in a form-fitting manner.

The Figure 2 a) shows the arrangement of the curtain 3 with the receiving means 9 in an open position. The Figure 2 b) shows the holding device 9 in the closed position. A bolt 13 can also be seen here. Figure 2 c) shows the horizontal bars and in Figure 2 d) the curtain 3 with the receiving means 9 is shown in a partially inserted position in the crossbar 6. This illustration also corresponds to the enlarged illustration according to Figure 3 . Finally, Figure 2 e) the receiving means 9 fully inserted into the crossbar.

In an alternative embodiment not shown, the receiving means 9 receives the curtain 3 by means of an adhesive and/or welded connection in a material-locking manner between two legs 21, 22 of the receiving means 9.

As from Figure 2 b) and d) and Figure 4 As can be seen further, the curtain 3 is mounted so that it can tilt or pivot about an axis defined by the bolt 13 by means of a bolt 13 of the cross bar 6, which bolt is guided in at least one groove 14 of the profile 8. As a result, the curtain 3 has play and can be moved in order to compensate for tolerances and inaccuracies. The pivot point is defined by the bolt, which in this case is arranged approximately centrally between the ends of the receiving means 9. The bolt 13 can be designed as a steel bolt.

As is particularly evident from Figure 1 and Figures 2 c), d) and e) as well as Figure 3 As can be seen, the cross bar 6 has a receptacle 11 for a seal 12, wherein the seal 12, which is designed as a sealing lip in the present case, can be inserted into the receptacle 11 during assembly and is arranged on the side of the cross bar 6 opposite the curtain 3 after assembly.

The seal 12 can be made of plastic, an elastomer or aluminum.

As these Figures 1 , 2 c), d) and e) as well as Figure 3 As can be seen further, the seal 12 in the present case is essentially T-shaped and can be inserted into the essentially rectangular receptacle 11 in such a way that after assembly it protrudes at least partially from the cross bar 6. The lower part of the curtain 3 ends with this seal 12.

The degrees of freedom of the mounted seal 12 in the cross bar 6 allow for compensation in order to compensate for possible tolerances. This ensures that the curtain 3 closes opaquely to a frame of the insulating glass arrangement 10.

Out of Figures 5 and 6 a chain or belt drive emerges. In this case, the at least one traction element 19 is designed as endless chain drives 27 arranged on both sides of the curtain 3, which are guided via ball chain or toothed belt wheels 25 seated in a rotationally fixed manner on the axis of the winding shaft 7 and via deflection elements 26, also designed as ball chain or toothed belt wheels, arranged away from the axis of the winding shaft 7. In the present case, the sides of the cross bar 6 are connected to the endless chain or ball chain 27 by means of a clamping connection. A gear unit moves the ball chain 27. The cross bar 6 can be moved up and down with the rotating ball chain 27.

As from Figures 5 and 6 As can be seen further, a shaft 35 driven by the electric motor drive 20 acts at both ends on the deflection elements 26 designed as ball chain or toothed belt wheels.

Figure 13 shows in a top view a), in a side view b) and in a perspective view c) a band-shaped traction means, in particular a traction film 56, which is wound on a winding drum 57. This is not an endlessly rotating traction means, but a traction means which is wound up and unwound on the winding drum 57.

A particularly advantageous embodiment is one in which the material of the curtain 3 and the material of the tension film 56 are essentially identical. It is conceivable that the tension film 56 is made from a part of the curtain 3 and the tension element is designed as a tension film 56.

This is particularly advantageous because the curtain 3 designed as a film and the tension element (tension film) 56 can be manufactured in a few processing steps with almost no waste. Conversely, any waste that may be generated during the manufacture of the curtain 3 can also be used to manufacture the tension element 56.

In the present embodiment according to Figures 5 and 6 the shaft 35 driven by the electric motor drive 20 is designed to be multi-part, wherein the deflection elements 26 designed as ball chain or toothed belt wheels on opposite sides of the curtain 3 are coupled to one another by means of a multi-part rod 28, wherein two tubular elements 29, 30 of the rod 28 can be rotated relative to one another in order to align the position of the ball chain or toothed belt wheels 26 to one another for the synchronization of the drives.

The two tubular elements 29, 30 of the rod 28, which can be adjusted or rotated relative to one another, are secured in a certain position by means of a grub screw 29 (cf. Figure 5 ).

The Figure 1 shows another embodiment of the invention. Here, the traction elements 19 are designed as threaded spindles 32 or ball screws with which the two ends 15, 16 of the cross bar 6 are coupled via spindle nuts 33, and which are each connected to the ends of the rotatable axis of the winding shaft 5 via gears 34, in particular bevel gears.

The shaft 35 driven by the electric motor drive 20 carries a gear wheel 36 at each of its two ends for driving the threaded spindles 32 or ball screw, and the winding shaft 5 is rotatably mounted relative to the shaft 35.

The operation for the movement of the curtain 3 of the insulating glass arrangement 10 can be carried out by means of a wireless signal transmission device which is connected to a control device of the insulating glass arrangement 10.

This wireless interface, also known as air interface,

The signal transmission device can be, for example, a WiFi, Bluetooth or Zigbee interface. A smartphone/tablet or other operating concept for smart home components can be provided as the central control element for the arrangement.

For this purpose, a sensor surface arranged on a glazing 1, 2 of the insulating glass arrangement 10 for contactless operation and/or a capacitive sensor surface can be provided.

The power supply of the insulating glass arrangement 10 can be provided by means of rechargeable battery-operated batteries, ie rechargeable batteries, which can be charged contactlessly using an inductive charging system. This can be done when the window is closed or tilted, since the window frame, which contains a powered charging coil, and the battery-side charging coil, which is in the window sash or the Insulating glass arrangement is arranged close enough to each other or has contact.

The insulating glass assembly 10 has a Figure 12 The plug connection has the hermetically sealed plug 46 shown for the power supply of the insulating glass arrangement 10. The plug connection must be moisture-tight. This is done by means of a rubber seal on the plug collar or plug. If, in this arrangement, cables are led out into the space between the panes, thus creating an inlet opening for moisture, for example, the plug connection still remains hermetically closed or sealed.

A further embodiment of the invention relates to a magnetic centering within the winding shaft 5, as the Figures 7 and 8th show. In this case, a first permanent magnet 40 is arranged in an inner cavity 39 of a tube section 37 of the winding shaft 5 and an outer profile 38, in this case a square tube, has a second permanent magnet 41 which, in the assembled state, surrounds the first permanent magnet 40 in such a way that the magnetic poles of the permanent magnets 40, 41 face each other to form a magnetic centering, so that the distance between the tube section 37 of the winding shaft 5 and the outer profile 38 remains essentially constant due to the magnetic forces and the winding shaft 5 is held in position via the magnetic centering and bending of the winding shaft 5 is avoided.

The tubular section 37 of the winding shaft 5 and/or the outer profile 38 consist essentially of steel or of plastic containing magnetic components.

The polarization of the permanent magnets 40, 41 is designed such that the tube section 37 of the winding shaft 5 is arranged in a floating manner. This may be an attractive or repulsive interaction between the poles, since the magnetic forces act essentially radially around the inner tube.

The Figure 7 shows that a simple assembly of the winding shaft 5 with the curtain 3 is possible in that the winding shaft 5 is accommodated in a box-shaped housing 42, wherein the housing 42 with the winding shaft 5 arranged therein can be inserted into the insulating glass arrangement 10, in particular can be plugged onto a frame of the arrangement 10, and can be secured in the assembled position by means of a clip connection. In this way, a modular structure is realized, which simplifies assembly and disassembly.

A drying agent, which in particular comprises a silica gel and/or zeolite, can be provided in the space between the panes 4 between the inner and outer glazing 1, 2. This is known as a "warm edge" in windows.

The glazing 1, 2 can be accommodated in a frame of the insulating glass arrangement 10, which has further functional areas. On the one hand, the glass panes 1, 2 are held securely and preferably hermetically sealed in the frame. On the other hand, the frame has various functional areas, for example as a holder or guide for the traction elements 19, in particular the ball chain or toothed belt wheels or threaded spindles 32. The drivers or the spindle nuts 33 coupled to the cross bar can also be accommodated in a guide on the frame. The drying agent can be introduced in a further functional area of the frame. A further functional area of the frame can have receiving means for receiving the box-shaped housing 42 with winding shaft 5.

The Figure 9 shows that the winding shaft or winding body 5 is arranged on its shaft via a torsion spring 51, wherein the winding shaft 5 is rotatable relative to the axis and connected to the axis via the torsion spring 51, which prestresses the winding shaft 5 relative to the axis in the winding direction.

The torsion spring 51 and the winding shaft 5 are firmly connected to the connecting pieces 52. The connecting piece 53 is firmly connected to a ball wheel 54. The torsion spring 51 is pre-tensioned by turning the connecting piece 53 counterclockwise or clockwise. The result of this is that the curtain 3 winds up onto the winding shaft 5. This continues until the cross bar 6 reaches its stop position (as shown) and the curtain 3 is wound up. During operation, i.e. the curtain 3 moves downwards, the ball chain with the cross bar 5 and curtain 3 is moved downwards.

Alternatively, it is conceivable that the torsion spring 51 is pre-tensioned once by turning the connecting piece 53 counterclockwise or clockwise so that the desired tension in the curtain is achieved.

The Figure 10 shows a design in which a spring compensation is achieved by a spring element 55 attached on both sides, which ensures an even tension of the curtain 3. This is particularly important for wide windows. A shaped spring plate 55 is shown. Tension, compression or torsion springs can of course also be used.

List of reference symbols

1

Internal glazing

2

External glazing

3

Sun protection or blackout curtains

4

Space between panes

5

Winding shaft

6

Cross bars

7

free end of the curtain

8th

U-shaped profile

9

Recording equipment

10

Insulating glass arrangement

11

Recording cross bars

12

poetry

13

bolt

14

Groove

15

End of cross bars

16

End of cross bars

17

Driver

18

Driver

19

Tension element

20

Electric motor drive

21

Leg support

22

Leg support

23

Projections legs

24

Counter shot thigh

25

Ball chain wheels or toothed belt wheels winding shaft

26

Deflection devices

27

Endless timing belt / chain drive

28

Rod - deflection elements

29

Tubular element rod

30

Tubular element rod

31

Screw connection - grub screw

32

Threaded spindle

33

Spindle nut

34

transmission

35

driven shaft

36

gear

37

Pipe section - winding shaft

38

Outer profile (square)

39

cavity

40

first permanent magnet

41

second permanent magnet

42

box-shaped housing

46

hermetically sealed connector

51

Torsion spring

52

Connector

53

Connector

54

Ball wheel

55

Spring element, shaped spring plate

56

Tension film

Claims (15)

Insulating glass arrangement (10) with an inner glazing (1) and an outer glazing (2) arranged at a distance therefrom and with a motor-driven sun protection or darkening curtain (3) integrated in the preferably hermetically sealed space between the panes (4), wherein - a winding shaft (5) with the winding and unwinding curtain (3) attached to it is arranged on a rotatable axis, - the free end (7) of the curtain (3) is connected to a crossbar (6), - the cross bar (6) is connected at its two ends (15, 16) to a driver (17, 18) each, which are coupled to the rotatable winding shaft (5) via at least one traction element (19), - an electric motor drive (20) causes the advance of the cross bar (6) and the simultaneous rotation of the winding shaft (5) in one direction or the other, characterized in that - the at least one traction element (19) is designed as an endless toothed belt or endless chain drive (27) arranged on both sides of the curtain (3) or as a band-shaped traction means, in particular traction foil, wherein the at least one traction element (19) is arranged over ball chain or toothed belt wheels (25) located on both sides of the winding shaft (5) or over winding drums and over rollers which are also designed as ball chain or toothed belt wheels or as a winding drum and which are guided by the axis of the winding shaft (5) is guided by deflection elements (26) arranged remotely, or that - the at least one traction element (19) is designed as threaded spindles (32) or ball screws, with which the two ends (15, 16) of the cross bar (6) are coupled via spindle nuts (33), and which are each connected to the ends of the rotatable axis of the winding shaft (5) via gears (34), in particular bevel gears. Insulating glass arrangement (10) according to claim 1, characterized in that a shaft (35) driven by the electric motor drive (20) acts at its two ends on the deflection elements (26) designed as ball chain or toothed belt wheels or as a winding drum. Insulating glass arrangement (10) according to one of the preceding claims, characterized in that the deflection elements (26) designed as ball chain or toothed belt wheels or as a winding drum on opposite sides of the curtain (3) are coupled to one another by means of a multi-part rod (28), wherein two tubular elements (29, 30) of the rod (28) can be rotated relative to one another in order to align the position of the ball chain or toothed belt wheels (26) relative to one another for the synchronization of the drives. Insulating glass arrangement (10) according to one of the preceding claims, characterized in that the two mutually adjustable or rotatable tubular elements (29, 30) of the rod (28) can be secured in a certain position by means of a screw connection (31), in particular a grub screw or clamping screw. Insulating glass arrangement (10) according to one of the preceding claims, characterized in that a shaft (35) driven by the electric motor drive (20) carries at each of its two ends a gear wheel (36) for driving the threaded spindles (32) or ball screw, in particular wherein the winding shaft (5) is rotatably mounted relative to the shaft (35). Insulating glass arrangement (10) according to one of the preceding claims, characterized in that the cross bar (6) has a, preferably substantially U-shaped, profile (8) for receiving the curtain (3), wherein the free end (7) of the curtain (3) can be received, in particular clamped, in a receiving means (9) during assembly. Insulating glass arrangement (10) according to one of the preceding claims, characterized in that the receiving means (9) can be inserted into the preferably substantially U-shaped profile (8). Insulating glass arrangement (10) according to one of the preceding claims, characterized in that the curtain (3) or the free end (7) of the curtain is mounted so as to be tiltable, rotatable or pivotable about an axis defined by the projection or extension, in particular bolt (13), of the cross bar (6) by means of a projection or extension, in particular bolt, preferably steel bolt (13), guided in at least one groove (14) of the preferably substantially U-shaped profile (8). Insulating glass arrangement (10) according to claim 8, characterized in that the projection or extension, in particular bolt (13), is arranged approximately centrally between the ends of the receiving means (9). Insulating glass arrangement (10) according to one of the preceding claims, characterized in that the receiving means (9) receives the curtain (3) or the free end (7) of the curtain in a form-fitting manner between two legs (21, 22), wherein one leg (21) has a plurality of conically tapering projections (23) which penetrate the curtain (3) after assembly and can be received in corresponding counter-receptacles (24) in the other leg (22) of the receiving means (9). Insulating glass arrangement (10) according to one of the preceding claims, characterized in that the, preferably integral designed receiving means (9) is made of plastic or aluminium or steel. Insulating glass arrangement (10) according to one of the preceding claims, characterized in that the receiving means (9) receives the curtain (3) or the free end (7) of the curtain (3) by means of an adhesive and/or welded connection in a materially bonded manner between two legs (21, 22) of the receiving means (9). Insulating glass arrangement (10) according to one of the preceding claims, characterized in that the cross bar (6) has a receptacle (11) for a seal (12), wherein the seal (12), preferably designed as a sealing lip, can be inserted into the receptacle (11) during assembly and is arranged after assembly on the side of the cross bar (6) opposite the curtain (3), in particular that the seal (12) is made of plastic, an elastomer or aluminum. Insulating glass arrangement (10) according to one of the preceding claims, characterized in that the seal (12) is essentially T-profile-shaped and can be inserted into the preferably essentially rectangular receptacle (11) of the cross bar (6) in such a way that after assembly it protrudes at least partially relative to the cross bar (6). Insulating glass arrangement (10) according to one of the preceding claims, characterized in that the material of the curtain (3) and the material of the tension film are substantially identical, wherein the tension film is made in particular from a part of the curtain, and the tension member (19) is designed as a tension film.

Images