DE9418875U1 - Motor-operated, flap-shaped device for closing openings, in particular windows or doors, from the outside - Google Patents

Description

Motor-operated, flap-shaped device for closing openings, especially windows or doors from the outside

The present invention relates to a motor-operated device for closing openings, in particular windows or doors from the outside, with the features specified in the preamble of patent claim 1.

Roller shutter-shaped devices for closing windows or doors from the outside are known from the state of the art; these are opened and closed by pulling up and lowering slat-shaped roller shutter elements.

Such devices usually include vertically movable, horizontally aligned gray monotonous plastic or aluminum slats. Their appearance is therefore not advantageous and is not in keeping with many styles, such as the rural style. For this reason, many municipal building regulations prohibit the installation of roller shutters solely for the purpose of protecting and darkening windows.

Another disadvantage of a roller shutter-type window closure is that it is already necessary to decide which roller shutter system with its respective characteristic optical features is to be installed during the shell construction phase of a house, i.e. at a time when the buyer of the property has often not yet been determined and whose wishes cannot therefore be taken into account.

A roller shutter-shaped window closure comprises a roller shutter box that is elaborately designed with bearings and deflections, a large number of movably connected, horizontally aligned plastic slats, a drum for winding up the plastic slats and a

Device for rotating the drum or for raising or lowering the slats. Due to the large number of individual parts, the production of a roller shutter-shaped device for closing windows involves a considerable amount of material and considerable costs.

Installing a roller shutter system also entails high costs. This is because recesses must be provided for the large horizontal roller shutter box and the cable pull mechanism, and roller shutter guide rails must be attached to the outside.

Due to the large number of moving parts, roller shutter systems are also very susceptible to failure. In particular, if the vertically aligned guide rails are dirty, their functionality cannot be guaranteed.

Another particular disadvantage is that roller shutters cannot be fitted to every window or door. Due to the large amount of space required by the horizontal roller shutter box, a minimum distance must be maintained between the ceiling of the room and the upper, horizontal part of the frame of the window or door that is firmly attached to the wall.

If strong winds act on a lowered roller shutter, the roller shutter slats and guide rails can quickly and frequently collide. This leads to rattling noises that are particularly annoying at night.

Since the slatted wall has to fit into the roller shutter box when rolled up, it is very thin when viewed from the side. This leads to the disadvantage that roller shutters only have a very limited soundproofing effect.

Due to the gaps between the slats, it is not possible to make roller shutters windproof. This means that the insulating properties of roller shutters also leave a lot to be desired.

If a roller shutter is moved using an electric motor, an electric motor with a high torque and high energy consumption is required due to the large mass of the roller shutter and the fact that it cannot be moved sideways but must be lifted vertically. This means that a mains connection must be provided, which may involve considerable effort. 10

The prior art also provides devices for locking windows or doors from the outside, which comprise a flap that can be pivoted in front of the window.

Such known flap-shaped locking devices have the particular disadvantage of being poorly user-friendly. To close the shutters, it is first necessary to clear the window sill. Then the window must be opened. This is extremely unsatisfactory in wet and/or stormy weather, especially when the wind is blowing against it. Ultimately, the person even has to bend outwards to be able to unlock and close the shutters. Operating a flap-shaped window lock is therefore very time-consuming and inconvenient. Physically disabled people, for example people confined to a wheelchair, or sick or elderly people are often unable to lean out of the window. For these people, opening or closing known shutters is not possible.

When the resident is away on holiday, for example, the shutters are either open or closed for a longer period of time. An attentive observer who is planning to break in can easily use this fact to deduce that the time is right for a break-in, when he or she does not have to expect the resident to arrive unexpectedly. Familiar shutters therefore increase the likelihood of a break-in.

The object of the present invention is therefore to provide a device for locking windows or doors from the outside, which has an attractive appearance, which is particularly adapted to the rural style, which can be retrofitted after the completion of the shell construction phase of a house, which can be manufactured with little material expenditure and thus inexpensively, which is simple and inexpensive to install, which does not necessarily require a mains connection, whose functionality is guaranteed even under adverse conditions, which can be provided independently of a certain minimum distance between the upper, horizontal part of the frame and the ceiling of the room, which does not lead to rattling noises even when exposed to strong winds, which has a pronounced noise protection effect, which provides excellent protection against heat loss, which is very easy to use and is designed for the disabled and which makes an apartment appear occupied at all times, thereby reducing the risk of a break-in when the resident is away for a long time.

According to the invention, this object is achieved in a generic device by the features specified in the characterizing part of patent claim 1.

Particularly preferred embodiments of the invention are described in more detail with reference to the drawings.

Show it:

Figure 1 is a schematic front view of a device according to the invention with a spur gear and a cardan drive,

Figure 2 is a schematic plan view of a device according to the invention,

Figure 3 is a schematic plan view of a device according to the invention with a spur gear drive,
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Figure 4 is a schematic plan view of a device according to the invention with a worm gear drive,

Figure 5 is a schematic plan view of a device according to the invention with a universal joint,

Figure 6 is a schematic front view of a device according to the invention with a central and a top drive unit,

Figure 7 is a schematic plan view of a device according to the invention with a shutter fitting on the opening side mounted on the front side of the house wall at right angles to the frame,

Figure 8 is a schematic plan view of a device according to the invention with a shutter fitting on the opening side attached to a projection of the house wall parallel to the frame,

Figure 9 is a schematic perspective view of a
inventive shutter fitting,
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Figure 10 shows a schematic cross-section through a
Device according to the invention for locking a window shutter in the open position,

Figure 11 shows a schematic cross-section through a

inventive device for locking a window shutter in the closed position,

Figure 12 is a schematic plan view of an adjustable shutter-side fitting according to the invention and

Figure 13 is a schematic side view of an adjustable shutter-side fitting according to the invention.

Figure 1 shows a schematic front view of an inventive

Device. A recess (2) for a window is provided in a wall (1). This comprises a window pane (3), a window frame (4) and a surround firmly connected to the wall, which is referred to below as the frame (5).
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It goes without saying that instead of a normal window with essentially square dimensions, a window that reaches all the way to the floor, a so-called French window, can be used. This is the case, for example, with large-pane glazed balcony doors. All of the following statements therefore also apply to French windows and window walls.

Preferably, when viewed from the front, at least one opening-side shutter fitting (20) is mounted on the left and right areas (6, 7) of the frame (5), which serves to pivotably connect the left and right shutters (8, 9) to the corresponding areas (6, 7) of the frame (5).

As a rule, two vertically spaced apart, strip-shaped opening-side shutter fittings (20) are arranged one above the other in the left and right areas (6, 7) of the frame (5). As can be seen from Figure 9, these shutter fittings are preferably drill-in or screw-on shutter fittings. However, at its end facing away from the opening (2), the strip-shaped band (23) does not usually have a pin-shaped cone pointing vertically upwards. Instead, there is preferably a bushing (21) there, the longitudinal axis (22) of which runs vertically. As a rule, the two bushings (21) of the opening-side shutter fittings (20) lying one above the other are aligned in such a way that a common longitudinal axis (22) runs through them.

As can be seen from Figure 1, in a particularly preferred embodiment of the present invention, a substantially rod- or tubular drive shaft (30) runs vertically through two superimposed

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lying opening-side bushings (21) and, if necessary, projects beyond these downwards and/or upwards.

Shutter-side fittings (40) are provided on the window shutters (8, 9) in correspondence with the opening-side shutter fittings (20). Each fitting (40) generally comprises a horizontally aligned band (42) which can be attached to a window shutter (8, 9) using screws, for example. Each strip-shaped band (42) also has a bushing (41) at its end opposite the shutter (8, 9). The bushings (41) are aligned so that their longitudinal axes correspond to the longitudinal axis (22) of the bushings (21).

The bushings (21) of the opening-side shutter fittings (20) and the bushings (41) of the shutter-side fittings (40) are arranged relative to one another in such a way that a single rod- or tubular, vertical drive shaft (30) can protrude through each bushing (21, 41), whereby the shutter-side bushings (41) come to lie above the opening-side bushings (21) and sit pivotably on them.

In order to create a force-locking connection between the drive shaft (30) and at least one bushing (41) of the shutter-side fitting (40), a threaded bore is provided in the shutter-side bushing (41), for example, into which an adjusting screw (43) engages.

In a particularly preferred embodiment, the vertical drive shaft (30), as shown in Figure 1, runs vertically through at least two combinations of an opening-side shutter fitting (20) and a shutter-side fitting (40) and projects downwards beyond the lowest opening-side shutter fitting. This end of the rod- or tubular drive shaft (30) which projects downwards can be driven in rotation, whereby the torque of a drive unit (59) acting on the vertical tubular or rod-shaped drive shaft (30) is transmitted to the shutter-side fittings (40) via the adjusting screws (43), for example, and leads to the opening or closing of the window shutter (8, 9).

The transmission of the torque from the rotationally driven vertical rod-shaped drive shaft (30) to the shutter-side fitting (40) cannot only be carried out by means of the adjusting screw (43). It is also possible, for example, to design the vertical, tubular or rod-shaped drive shaft (30) at the height of the shutter-side fittings (40), for example with a square cross-section, and to design the interior of the essentially tubular bushing (41) of the shutter-side fitting (40) accordingly, so that it is in force-locking engagement with this section of the drive shaft (30). ,

It is of course possible to make the rod- or tubular-shaped vertical drive shaft (30) shorter so that, as shown on the left in Figure 6, only a single shutter-side fitting (42) is directly driven. In this case, the lower, associated shutter fitting should comprise a shutter-side shutter hinge with a vertically aligned bushing and an opening-side shutter hinge with a vertically aligned pin that engages in the bushing.

As can be seen in particular from Figures 2 to 5 and 8, the strip-shaped band (42) of the shutter-side fitting (40) has, for example, a kink-shaped bend (44) towards the rear. This bend (44) enables, on the one hand, a parallel alignment of the window shutter (8, 9) to the front side of the house wall (1) when the window shutter is fully open, despite the front wall edge (24) of the wall projection (25). On the other hand, this bend (44) enables an essentially parallel alignment of the closed window shutter (8, &THgr;) to the frame (5).

Depending on the material thickness of the window shutter and the distance between the longitudinal axis (22) and the front wall edge (24), the length of the straight section of the strip-shaped band (42) and the angle of the bend (44) of the band (42) can be selected so that the window shutter (8, 9) in the closed state is essentially in a sealed position against the frame (5). In this way, an excellent

Protection against heat loss and excellent sound insulation are achieved.

As shown in Figures 12 and 13, the strip-shaped band (42) of the shutter-side fitting (40) can have a mechanism (32) instead of the rigid, kink-shaped bend (44) with the help of which it can be displaced horizontally relative to the window-side fitting (20). Such a mechanism comprises, for example, a fitting (33) on the shutter side that is L-shaped when viewed from above. When the window shutter (9) is open, the front leg (34) of this L-shaped fitting lies parallel to, for example, the back of the window shutter (8, 9). The rear leg (35) is arranged at a right angle to the front leg (34) when viewed from above and points towards the window, usually running parallel to the strip-shaped band (23) of the opening-side fitting (20). The rear leg (35) has a horizontally extending longitudinal hole (36) which extends at least partially over the length of the leg (35).

A horizontally aligned web-shaped holder (37) is provided on the outside of the bushing (41) of the drawer-side fitting (40). Two vertically aligned plates (38, 39) are attached to this holder at an angle of 90 ^° , parallel to one another and parallel to the rear leg (35) of the L-shaped drawer-side fitting (33). The plates (38, 39) each have a threaded hole (48) at opposite points, with a screw (49) engaging in these holes and the distance between the two plates (38, 39) being able to be reduced by tightening the screw (49).

The rear leg (35) of the L-shaped fitting (33) is arranged between the plates (38, 39) so that the screw (49) is in the longitudinal hole (36) of the rear leg (35). In this way, it is possible to move the leg (35) forwards and backwards when the screw (49) is loosened. On the other hand, the leg (35) can be locked in any position by simply tightening the screw (49), depending on the length of the longitudinal hole (36).

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It is thus possible to adapt the device according to the invention to different distances between the frame (5) and the edge (24) of the masonry (1). In addition, the distance between the closed window shutter (8, 9) and the frame (5) can be set as desired in this way.

As can be seen from Figures 7 and 8, in addition to attaching the opening-side shutter fittings (20) to the frame (5), they can also be attached to a wall projection (25) or a front surface (26) of the wall (1).

When the shutter fittings (20) on the opening side are attached to the front surface (26) of the wall (1), it is particularly advantageous that the size of the shutters (8, 9) can be selected to be larger than the area of the window recess (2) in the wall (1). This overlap of the shutters (8, 9) with the masonry, which may be sealed, provides optimal protection against heat loss and excellent noise protection. These effects are based in particular on the fact that the insulating air volume enclosed in this way is much larger due to the large distance between the window pane (3) and the shutter (8, 9) than the insulating air volume that can be enclosed when the window fittings (20) are attached directly to the frame (5) (Figure 7). In the latter case, the shutter (8, 9) usually rests on the frame when closed.

If the fitting (20) on the opening side is attached to the projection (25) of the wall (1), as shown in Figure 8, and, for example, a right-angled fitting (42) on the shutter side is used, a sealing connection can also be created between the shutter (8, 9) and the projection (25) of the masonry by means of an end (12) of the window shutter (8, 9) that protrudes beyond the fitting (42) when the window shutter (8, 9) is closed.

The rotary drive of the vertical tubular or rod-shaped drive shaft (30) can be accomplished, for example, by a gear wheel (61) that is rotary-driven with the aid of an electric motor (60), which can be driven directly or

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via a gear drive another gear (62) which is non-positively connected to the downwardly projecting part of the drive shaft (30).

The force-locking connection between the gear (62) and the vertical drive shaft (30) can be achieved, for example, by the drive shaft (30) having a specific, for example square, cross-section in the area of the gear (62), to which the central recess of the gear (62) is precisely adapted. To prevent vertical displacement of the gear (62), adjusting rings (63) can be provided above and below it.

Preferably, in such a spur gear, the lowest, free end of the drive shaft (30) is guided in a recess (4) in the housing base or in a bearing. In this way, the functionality of the spur gear is ensured even when subjected to greater forces.

In order to keep the drive unit (59) away from the effects of the weather, it is usually provided within a housing (65) that is at least splash-proof. To prevent rainwater running along the vertical drive shaft (30) from penetrating, the housing recess for the passage of the element (30) can have a collar (66) that is overhung by an essentially umbrella-shaped projection (67). The umbrella-shaped projection (67) is attached to the vertical drive shaft (30) in a sealing manner, for example by means of an annular rubber grommet. A particularly effective way of protecting the electric motor (60) from moisture is to attach it hanging downwards on the inner surface of the top of the housing (65).

It goes without saying that the drive unit (59), which in this case comprises at least the electric motor (60), its gear (61) and the gear (62), can act not only on the downwardly projecting end of the vertical drive shaft (30). Rather, it is also possible to design the drive shaft (30) in such a way that it projects upwards above the uppermost shutter-side fitting (40). In this case, the drive unit (59) can be designed and attached in a similar way to the previous embodiments in such a way that it is attached to the upwardly projecting end of the vertical drive shaft (30).

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protruding end of the vertical drive shaft (30) (Figure 6).

As an alternative to attaching the drive unit (59) to the top or bottom end of the drive shaft (30), it is also possible to attach the drive unit (59) between two vertically spaced combinations each consisting of a shutter-side fitting (40) and an opening-side fitting (20) (Figure 6). The drive unit (59) can act on the section of the drive shaft (30) that connects the upper combination to the lower combination. If the drive shaft (30) is shortened and only extends into one of the two combinations, the drive unit (59) can also be attached in such a way that it only acts on this shortened drive shaft (30).
The higher the drive unit (59) is installed, the greater the protection from the effects of the weather. Particularly effective protection from the effects of the weather is achieved if the drive unit (59) is set back in the uppermost area of the frame (5) or even integrated into the wall.

It also goes without saying that the electric motor (60) can optionally rotarily drive a worm (68) into which the gear (62) engages, which is non-positively connected to the vertical drive shaft (30) (Figure 4). Depending on the direction of rotation of the electric motor (60) or the worm (68), the window shutter (8,9) opens or closes.

If the location of the drive unit (59) cannot be chosen so that it is on the vertical longitudinal axis (22) of the vertical drive shaft (30) or in its immediate vicinity, it is possible, as shown in Figures 1 and 5, to nevertheless establish a force-locking connection between the motor (60) and a free end of the drive shaft (30), for example using a universal joint. As can be seen from Figure 1, an electric motor (60), for example, drives a drive-side joint fork (69) directly or via a gear, which carries a drive-side cross pin (70). The free ends of the cross pin (70) are engaged by

another joint fork (69) which is connected to an intermediate shaft (71). At its opposite end, the intermediate shaft (71) carries another joint fork (69), which in turn has a cross member (70) into which a joint fork (69) engages, which merges into the vertical drive shaft (30).

Preferably, the motor (60) and, if applicable, the gear unit are housed in a housing (65). The above statements regarding the housing (65) apply to the watertight or splash-proof design of the housing (65). It is also self-evident that the universal joint and the associated drive unit (59) can also be attached to the end of the vertically aligned drive shaft (30) that projects upwards above the top fitting (40) on the drawer side.

Of particular importance in the device according to the invention is that the electric motor (60) can be connected to a control device wirelessly or by wire.

The control device preferably comprises at least one microprocessor, which is connected to a memory element, a clock, an input device, for example in the form of a keyboard, and a switching device. The connection between the microprocessor and the input device can be wireless or wired.

The microprocessor controls the switching device, which regulates the supply and the flow direction of electrical energy to the electric motor (60). In general, the switching device has at least one position for "forward", "reverse" and "off".

The microprocessor is designed in such a way that at least the stop positions of the open and closed shutters, the current time, the opening and closing times and commands for immediate opening and closing can be entered via the keyboard.

In addition, it is also possible to connect a sun sensor or a twilight sensor to the microprocessor wirelessly or wired. The sun or twilight sensor is, for example, a light intensity measuring device that sends signals to the microprocessor, the values of which depend on the amount of

incoming light. If the value of the signal emitted exceeds a threshold value that can be set using the keyboard, the shutters are automatically closed. In this way, plants, furniture, pictures and carpets are protected from too much sunlight. If the light intensity measuring device is used as a twilight sensor, the microprocessor causes the shutters to close automatically when the signal from the light intensity measuring device falls below a preset value.

The complete control device with input keyboard can, for example, be housed in the housing (65) of the drive unit (59). This has the disadvantage that closing or opening the windows outside of the preset times may only be possible with difficulty, since the window usually has to be opened to reach the housing (65).

It has therefore proven to be particularly advantageous to provide, in addition to the keyboard on the housing (65), or as an alternative to this, an input device in the form of a remote control that can be operated in the home and that is connected to the microprocessor wirelessly or by wire. Preferably, this transmitting device, which is usually also designed in the form of a keyboard, is connected to the microprocessor housed in the housing (65) via a receiving device that receives the signals wirelessly transmitted by this input device, for example infrared, ultrasound or radio signals.

Of course, it is also possible to provide the microprocessor together with the memory element, the clock, the keyboard-shaped input device and a transmitter not in the housing (65), but in this remote control unit. In this case, a receiver device is also installed in the outer housing (65), which controls a switch that regulates the power supply of the electric motor (60). If a twilight or sun sensor is used, the sensitivity of which can be adjusted, this is preferably wireless.

or wired to this remote control device. The light intensity measuring sensor is then usually attached to the inside of the window pane (3).

The advantage of a remote control unit that sends out wireless signals is that, with a single remote control unit and an appropriate design of the storage device, a large number of shutters can be opened and closed together or independently of one another. This makes the device according to the invention extremely cost-effective, which is all the more pronounced the more shutters are to be moved.

The transmission of the signals from the remote control device to the electric motor (60) or to a receiving unit connected upstream of it can not only be carried out wirelessly - as described. In a likewise preferred embodiment of the present invention, the electric motor (60) is in contact with the remote control device located in the living area via an electrically conductive connection. The power supply to the electric motor (60) can also be carried out via this electrically conductive connection, with the electrical energy being taken from a battery, an accumulator or the power grid.

A particular advantage of the device according to the invention, however, is that the power supply, in particular of the electric motor (60), can be provided via one or more photovoltaic elements that are formed on the housing (65) and/or at least partially on the surface of the shutter (8, 9). A rechargeable battery is provided, for example in the housing (65), to store the electrical energy obtained in this way. The charge capacity of the rechargeable battery is selected to be at least large enough to ensure that the shutter can be opened after a night when no light energy is available.

If there is an electrically conductive connection between the drive unit (59) and the remote control unit, the power supply of the

Remote control unit and, if applicable, the light intensity measuring sensor can also be operated via these photovoltaic elements.

As shown in Figure 10, a locking device (75) can be provided to relieve the load on the electric motor (60) in the open position of a window shutter (8, 9). This is attached, for example, to or in the house wall (1) behind the open window shutter (8, 9) and comprises a housing (76) which has a substantially horizontally aligned, deep recess (77). A horizontally aligned pin (78) attached at the corresponding point on the back of the window shutter (8, 9) engages in this when the window shutter is opened as far as it will go.

At its end facing the locking device (75), the pin (78) has a notch (79), for example on the top, into which a bolt (80) adapted to the shape of the notch (79) and mounted so as to be vertically displaceable can engage, thereby locking the pin (78). To unlock, i.e. to lift the bolt (80), a voltage is applied to the coil (81) surrounding the bolt (80). The current flow in the coil (81) generates a magnetic field that acts on the metal bolt (80) and lifts it.

The control of the coil (81) is preferably carried out automatically by the microprocessor or by a switch connected to it wirelessly or by wire. In a particularly preferred embodiment of the invention, the microprocessor is designed such that at the beginning of the actuation of the electric motor (60) it actuates the switch for supplying power to the coil (81) and thereby causes the bolt (80) to be raised, followed by the release of the pin (78). The coil is generally supplied with power in the same way as the electric motor (60).

As can be seen from Figure 11, it is possible to provide an additional locking device (45) which prevents a locked window shutter (8, 9) from being opened from the outside against the will of the resident. For this purpose, for example, integrated into the

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upper or lower horizontal area (10, 11) of the frame (5) a locking device (45) is installed, the structure of which generally corresponds essentially to the structure of the locking device (75). The statements regarding the locking device (75), its control and its power supply therefore also apply mutatis mutandis to the locking device (45).

In summary, it can be said that the device according to the invention leads to a considerable increase in the user's comfort, since plants no longer have to be removed from the window sill or furniture has to be moved to close or open the shutters. There is also no need to lean out of the window in bad weather. This is certainly a great help, especially for sick or elderly people.

Thanks to its simple design, the device according to the invention can also be installed quickly afterwards, without special tools or special skills. The old drilled-in or screwed-on cones are replaced by the shutter fittings with tubular ends used according to the invention, the tubular or rod-shaped vertical element (30) is inserted and the drive device (59) is connected.

The practical benefit of the device according to the invention is that heating energy is saved in the cold season. Regularly closed shutters insulate against heat loss. Conversely, in summer, when the sun sensor is used, the room is pleasantly cool. In addition, plants, furniture and carpets are protected from too much sunlight.

Since the shutters can be of any thickness and designed to seal tightly against the shutter frame (5), they also provide excellent sound insulation.

Finally, the daily automatic opening and closing of the shutters makes an apartment appear occupied, which increases the

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The likelihood of a break-in during a resident's extended absence, for example due to vacation, is drastically reduced.

Claims (12)

PROTECTION CLAIMS 1. Device for closing an opening, in particular a window or a door from the outside with at least one flap-shaped shutter (8, 9) and at least one shutter-side and at least one opening-side shutter fitting (40, 20) for laterally pivoting fastening of the shutter (8, 9), characterized in that each shutter (8, 9) comprises at least one shutter-side fitting (40) which is in a force-locking connection with a drive shaft (30), the drive shaft (30) being rotationally driven by a drive unit (59). 2. Device according to claim 1, characterized in that each shutter (8, 9) has at least one band-shaped shutter-side fitting (40) which has a vertically aligned bushing (41) at its end facing away from the store, into which a substantially vertical drive shaft (30) projects or through, wherein a force-fit connection between the bushing (41) and the drive shaft (30) is established by an adjusting screw (43) attached to the bushing (41) and/or by the design of the interior of the bushing (41) with a specific cross-section, wherein the cross-section of the drive shaft (30) is adapted to this cross-section of the bushing (41) at least in the area which comes to lie in the bushing (41). 3. Device according to one of claims 1 or 2, characterized in that it comprises at least one band-shaped opening-side shutter fitting (20), the opening-side end of which is fastened to a frame (5, 6, 7), to a wall projection (25) or to a front surface (26) of a wall (1) and which has a vertically aligned bushing (21) at the end facing away from the opening. 4. Device according to one of claims 1 to 3, characterized in that
at least one bushing (41) of a drawer-side fitting (40) and at least one bushing (21) of an opening-side fitting (20) are arranged in such a way that a common vertical longitudinal axis (22) and a vertical drive shaft (30) run through them, which serves for the rotary drive of the drawer-side bushing (41) and for the hinge-like connection of the bushings (41, 21), and that the drawer-side bushing (41) rests pivotably on the opening-side bushing (21). 5. Device according to claim 4, characterized in that at least two combinations of one opening-side shutter fitting (20) and one shutter-side fitting (40) are attached to each shutter (8, 9) vertically one above the other and vertically spaced from one another, wherein a continuous drive shaft (30) connects at least the shutter-side fittings (40) to one another in a force-fitting manner. 6. Device according to one of the preceding claims 1 to 5, characterized in that the drive shaft (30) projects downwards and/or upwards beyond at least one combination of an opening-side shutter fitting (20) and a shutter-side fitting (40) and that a drive unit (59) acts in a rotational manner on a projecting end of the drive shaft (30). 7. Device according to one of the preceding claims, characterized in that the drive unit essentially comprises an electric motor (60), the driven shaft of which acts on a free section or a free end of the drive shaft (30) via a spur gear or a worm gear, with or without the interposition of a universal joint. 8. Device according to one of the preceding claims, characterized in that the electric motor (60) is connected to a control device via an intermediate switch, either wirelessly or by means of an electrical line, the control device comprising at least one microprocessor which is connected to at least one memory element, a clock and an input device, the connection between the microprocessor and the input device being wireless or wired, and which is designed such that it controls the switch connected to the electric motor (60) depending on the values entered via the input device for the stop positions of an open and a closed window shutter, the current time, the opening and closing times and an immediate opening or closing. 9. Device according to claim 8, characterized in that the microprocessor is additionally connected wirelessly or via an electrical line to a light intensity measuring device which emits signals to the microprocessor whose values depend on the amount of incident light, the microprocessor actuating the switch for the electric motor in such a way that the shutter (8, 9) is closed when the value of the signal emitted by the light intensity measuring device exceeds a threshold value entered via the input device and/or falls below a preset threshold value corresponding to a low brightness. 10. Device according to one of the preceding claims, characterized in that it comprises a locking device (75) for locking the shutter (8, 9) in the open position and a locking device (45) for locking the shutter (8, 9) in the closed position. 11. Device according to claim 10, characterized in that the locking device (75, 45) has a horizontally aligned, deep recess (77, 77') in a housing (76, 76') into which a pin (78, 78') attached to the drawer (8, 9) engages, which has a notch (79, 79') into which a bolt (80, 80') adapted to the shape of the notch (79, 79') and mounted so as to be vertically displaceable engages, which can be raised by applying a voltage to the coil (81, 81') comprising the bolt (80, 80'), the coil (81, 81') being connected wirelessly or wired to the microprocessor. 12. Device according to one of the preceding claims, characterized in that at least one photovoltaic element is provided on the charger (8, 9) and/or the housing (65) of the electric motor, which is connected at least to the electric motor (60) via a rechargeable battery.