DE102009034205B4 - Roof sliding window with several window sashes - Google Patents

Abstract

Roof sliding window (1) with a plurality of window sashes which, in an open position that releases a window opening, can be moved side by side into the window opening from a moving device (2) stacking the window leaves one above the other, the moving device (2) having at least one prestressed spring element (22, 23) for an automatic Moving the superimposed window sashes, and wherein the window sashes have coupling means (31) through which a window sash is releasably coupled when it is displaced with an advancing window sash, the shifting device (2) having such a controllable device (13) for adjusting the spring tension of the spring element (22, 23) has no coupling upward movement.

Description

The invention relates to a roof sliding window with a plurality of window sashes which are displaceable side by side in the window opening in a open position releasing a window opening from one of the window sash stacking Nachrückvorrichtung.

Such roof sliding windows are usually used as roof windows or, for example, as an emergency exit or smoke heat vent or are designed in such a way and allow for a relatively small space requirement closing or releasing a large window opening. The special feature is that the individual window sashes are stacked when opening or releasing the window opening in the Nachrückvorrichtung one above the other. As a result, the space required for stowing the window sash next to the window opening substantially corresponds to the width of one of the window sash. When moving the uppermost window sash in the window opening, the Nachrückvorrichtung that the underlying window sash nachges and thus can also be moved into the window opening or is moved.

From the DE 19711469 A1 a roof sliding window is known in which a prestressed spring element provides for an automatic moving behind in a Nachrückvorrichtung superimposed window sashes and in which these sashes are automatically connected to each other via coupling means, so that they can move when closing the window side by side in the window opening.

From the DE 10351941 A1 a roof sliding window is known which has two independent drives for lifting or lowering of stacked window sashes and for lateral displacement of adjacent window sashes. If necessary, individual wings can be moved sideways in the window opening.

From the DE 2844022 B1 a sliding plate device for closing an opening is known in which the sliding plates are stacked in a Nachrückvorrichtung one above the other.

The invention has for its object to provide a roof sliding window, in which a coupling of window sashes and a separation of the sash is made possible in a very simple and cost-effective manner.

The roof sliding window according to the invention provides that the Nachrückvorrichtung in this case has at least one biased spring element for automatic moving back of the superimposed window sash and that the window sash coupling means by which a window sash is releasably coupled during its displacement with a nachückenden window sash, wherein the Nachrückvorrichtung such controllable means for adjusting the spring tension of the spring element, that a coupling nachzuschibt does not occur. When pushing out the window sash from the Nachrückvorrichtung so the retraction of the window sash is ensured by the force stored in the prestressed spring element. If the window sash is moved out of the window opening into the follower device, the weight of the respective window sash ensures that a window sash already lying in the follower device is displaced in such a way and the spring element is further tensioned, that the window sash pushed into the follower device over the already in it Window sash is pushed. As a result, the stacking of the casement is made possible in a simple manner one above the other in the Nachrückvorrichtung. If the uppermost window sash moved into the window opening, the underlying sash takes the position of the pushed-out sash, so he moves to the position for pushing out. Furthermore, it is provided that the window sashes have connectable coupling means. The coupling means are designed such that when a window sash is moved into the window opening, this is coupled to the underlying and nachrückenden by the Nachrückvorrichtung window sash. This ensures that only one of the sash must be moved, and this automatically pulls the other, following sash after him. The same applies when opening or releasing the window opening, in which it is sufficient to move one of the window sash in the Nachrückvorrichtung. Due to the coupling, the window sashes remaining in the window opening follow automatically. When moving the window sash in the Nachrückvorrichtung the window sash are decoupled from each other, so that a particularly simple and compact stacking of the sash is made possible in the Nachrückvorrichtung. The above-mentioned device of the Nachrückvorrichtung serves to adjust the spring tension of the spring element. The device is controllable in such a way that a coupling-up does not occur. This means that the spring tension of the spring element by means of the device can be reduced such that when moving a sash out of the Nachrückvorrichtung or the underlying casement or the or in the Nachrückvorrichtung remaining / Do not move remaining window sash, as its or its weight exceeds the remaining spring tension of the spring element. This prevents a window sash from coming in, and thus the sashes from being interlinked with each other.

The roof sliding window according to the invention has the advantage that the window sash can be moved independently of each other in the window opening. This facilitates in particular the cleaning of the roof sliding window. Namely, it is now possible for a user, for example, to move a single window sash out of the follower device into the window opening, so that it can clean the window sash in question, in particular from the outside, through the remaining released window opening. In a roof sliding window with, for example, three window sashes, the user can thus, for example, first move the first window sash into the window opening, clean it from the outside, and then only the second sash in order to clean it from the outside. The outside of the third, remaining in the Nachrückvorrichtung window sash can then be cleaned in the Nachrückvorrichtung. Conveniently, the Nachrückvorrichtung on a corresponding access opening. If necessary, special cleaning tools can be provided for this purpose. Advantageously, the user can either individually during assembly or even later determine which of the casements to be verkuppelt each other, and in which casement a coupling nachzuschiben should be omitted.

According to an advantageous development it is provided that the Nachrückvorrichtung has a height-movable and operatively connected to the spring element frame on which the sash can be stacked. The Nachrückvorgang the window sash is thus effected by the movable in height frame, which is operatively connected to the prestressed spring element. At least the lowermost window sash and the frame advantageously have corresponding guide means for guiding the window sash on the frame.

Advantageously, the spring element between the frame and a displaceable for adjusting the spring tension holding means of the device is biased. This means that the device can act directly on the spring element, in particular on the spring travel of the spring element and thus on the spring tension.

Preferably, the holding means is displaceable by an electric motor. As a result, a simple control or adjustment of the spring tension is possible. Particularly preferably, the device is remotely controllable, so that the spring tension of the spring element is adjustable from any location, whereby the operation and maintenance or cleaning is simplified.

It is advantageously provided that the device for displacing the holding means has an electromotive rack drive.

In this case, either the electromotive drive unit of the rack drive can be arranged stationary and the rack on which the holding means is arranged to be movable. Or the holding means is arranged on the drive unit, which is movable on the stationary rack. Conveniently, the rack is aligned in the longitudinal extent of the spring element, so that the spring travel or the spring tension is easily and precisely adjustable.

Advantageously, the spring element is designed as a tension spring, so that a tensile force is always transmitted from the device, or the holding means, via the spring element to the frame. Particularly preferably, the spring element is designed as a spiral spring. This allows a cost-effective production of the roof sliding window and easy installation. Regardless of the design of the spring element should be noted here that the device described above, of course, is not only suitable to prevent a coupling nachrücken if necessary, but that it is also suitable over the life of the spring element away occurring fatigue of both the spring element as well as other components relating to the process of the frame of the follower. If the device is designed to be remotely controllable, as described above, this allows easy maintenance and readjustment of the roof sliding window, without having to dismantle or partially dismantle the roof sliding window.

According to a development of the invention, a cable, Zahnriemen- and / or chain hoist between the frame and the spring element is interposed. As a result, both the spring element and the device for adjusting the spring tension can be arranged in a space-optimized manner in or on the repositioning device or the roof sliding window. In particular, this makes it possible to arrange the device and the spring element in the Nachrückvorrichtung below the frame and thus optionally stacked on the frame window sash. This results in a particularly compact arrangement, yet allows an efficient power transmission for the Nachrücken.

According to an advantageous embodiment of the roof sliding window is provided that in the Height movable frame tiltable is stored. Preferably, the tilting axis is aligned perpendicular to the direction of displacement of the window sash and advantageously arranged centrally with respect to the frame and / or the window sash. The tilting of the frame makes it possible, in particular, for the window sashes to be able to tilt with respect to the displacement plane in the window opening in the follower device, so that the window sash that is moved out of or into the follower device is tilted the underlying inclined / tilted sash off or runs up. This results in a gentle upward or stacking, in which the method of the frame in its height over the entire width of the window - in the direction of movement - takes place. Advantageously, the Nachrückvorrichtung has at least one, the frame overlapping carriage, which is conveniently movable on a stationary frame in height.

Furthermore, it is provided that the window sash as a coupling agent in each case have at least one driving element. Under a driving element here is an element to be understood, which is designed and arranged on a window sash and / or aligned that it engages a corresponding carrier element of an adjacent - above or below - window sash when moving a window sash positively and thereby the adjacent sash entraining.

Advantageously, the overhead window sash as entrainment each have a catch rail, in which engages a driving element of an underlying sash when coupling rearward. When moving the sash from the Nachrückvorrichtung in the window opening, ie in the frame of Dachschiebefensters, the catching track captures the entrainment of the underlying sash - as long as this moves behind -, whereby the two sash are coupled together. By appropriate actuation of the device described above for adjusting the spring tension, the coupling-up movement is prevented, so that the catch rail is moved past the driving element of the underlying window sash.

It is further provided that the entrainment element of the underlying window sash is designed as a particular rotatably mounted catch roller. Due to the rotatable mounting frictional forces between the window sashes when moving minimized and the sliding of the sash altogether. Conveniently, the catch rail is aligned obliquely, in particular here the rotatable mounting of the roller leads to a reduction in friction force. The inclination also causes the moving of a sash raised or pushed down the sash in the Nachrückvorrichtung - depending on the direction of displacement - and thereby the procedure of the frame is supported.

Advantageously, the catch rail seen in cross-section on a U-profile, wherein the roller engages in the catch rail such that it cooperates with two legs of the U-profile, depending on the direction of movement of the sash. As a result, not only the entrainment of the underlying casement is guaranteed, but also initiated the stacking process in the Nachrückvorrichtung. If two mutually coupled window sash retracted into the Nachrückvorrichtung, so the front lying in the direction of movement window sash is moved to an advantageously arranged stop in the Nachrückvorrichtung or on the frame of the Nachrückvorrichtung. Once the window sash meets the stop, the obliquely oriented, the U-profile having catching rail causes the window sash lying on the frame of the Nachrückvorrichtung is first pressed down in the region of the roller, so preferably on its side facing the window opening, whereby - if the frame is tilted as described above - first the frame is tilted together with the window sash lying on it so far that the following window sash pushed over the now tilted under it sash and then the entire underlying sash or the frame is moved in height.

According to a development of the invention, each rack is associated with a toothed rack which can be brought into operative connection with an electromotive drive for displacing the casements in the window opening. Conveniently, the electric motor drive is designed as a reduction drive and arranged on the window opening associated side of the Nachrückvorrichtung. By the coupling means described above, it is thus possible in a simple manner, by means of the single electromotive drive to move all the casement from the Nachrückvorrichtung in the window opening next to each other.

Finally, it is provided that the roof sliding window has at least one sensor for detecting the position of at least partially pushed out of the Nachrückvorrichtung window sash. The sensor is operatively connected to the means for adjusting the spring tension, so that the time at which the spring tension to prevent a coupling Nachrückens should be reduced to simple Mode is controlled by the sensor / detected.

In the following, the invention will be explained in more detail with reference to an embodiment. Show this

1 an advantageous Nachrückvorrichtung a Dachschiebefensters in a perspective view,

2 the Nachrückvorrichtung in a schematic side view,

3 the Nachrückvorrichtung in a schematic sectional view,

4 advantageous coupling means of window sashes of the roof sliding window in a perspective plan view,

5 the coupling means in a perspective bottom view and

6 Fittings of three detachably coupled window sashes of the roof sliding window in a perspective view.

The 1 shows a perspective view of an embodiment of an advantageous roof sliding window 1 , which is particularly suitable for installation in residential roofs. From the roof sliding window 1 Here is essentially a Nachrückvorrichtung 2 shown. In the Nachrückvorrichtung 2 are window sash - not shown here - the roof sliding window 1 stackable on top of each other and from there side by side sliding into a window opening. For this purpose, the Nachrückvorrichtung 2 a height-adjustable frame 3 on which the casements are stackable.

How best of the 2 seen, which is a schematic side view of the Nachrückvorrichtung 2 - seen from the window opening - represents the frame hangs 3 the Nachrückvorrichtung 2 on both sides on each chain hoist 4 respectively 5 , The respective chain hoist 4 . 5 is on a frame supporting, on a fixed frame 6 the Nachrückvorrichtung 2 guided sled 7 respectively 8th attached. The respective chain hoist 4 . 5 leads from the corresponding slide 7 . 8th above one above the frame 3 arranged sprocket 9 respectively 10 where the chain hoist is deflected by 180 ° and to another sprocket 11 respectively 12 below the frame 3 leads. There is the respective chain hoist 4 . 5 essentially at 90 ° to one below the frame 3 or in the bottom region of the Nachrückvorrichtung 2 arranged device 13 is redirected.

The device 13 according to 2 an electric motor rack drive 14 on that with the chain hoist 4 is operatively connected, and an electric motor rack drive 15 that with the chain hoist 5 is actively connected. The rack drives 14 and 15 each have a stationary rack 16 respectively 17 on, on each of which a drive unit 18 respectively 19 can be moved by an electric motor. At the drive units 18 . 19 is in each case a holding means 20 . 21 arranged, in particular in one piece with a housing part of the respective drive unit 18 or 19 can be trained. The holding means 20 . 21 are each with one end of a spring element 22 . 23 connected, whose respective other end with the chain hoist 4 respectively 5 connected is. The spring elements 22 . 23 are thus between the device 13 and the frame 3 interposed. According to the embodiment of the 1 are the spring elements 22 . 23 each as a spiral spring 24 trained and loaded on train. Like from the 1 also shows, the chain hoists 4 . 5 in each case two mutually parallel chains, which between one with the corresponding end of the respective spring element 22 . 23 connected intermediate piece 25 and the corresponding slide 7 . 8th are curious.

From the 1 is also evident that the rack and pinion drives 14 and 15 the device 13 not with each other, as in the 2 for reasons of clarity shown schematically, but are preferably arranged side by side at the same height. In addition, shows 1 an alternative embodiment of the device 13 in which, in contrast to the above-described embodiment according to 2 Advantageously, the drive units 18 . 19 are fixed in place while the racks 16 . 17 according to the holding means 20 . 21 and by means of the drive units 18 . 19 for adjusting the spring tension can be moved.

In the following, the operation of the advantageous roof sliding window will be explained in more detail:
With completely released window opening of the roof sliding window 1 all the window sash of the roof sliding window stacked one above the other in the Nachrückvorrichtung 2 or on the frame 3 , The frame 3 is located at a height such that the uppermost window sash to the right or in the direction of an arrow 26 from the Nachrückvorrichtung 2 can be pushed out. For this purpose, the underside of the uppermost window sash lies substantially at the height of a window frame guide 28 of the window opening forming frame. By moving the sash from the frame 3 this reduces to the frame 3 acting total weight of the remaining window sash, so that the claimed on train spring elements the frame 3 by means of chain hoists 4 . 5 and the sled 7 . 8th upwards - like an arrow 27 characterized - method. As a result, the window sash below the first window sash moves. In particular, it moves to the Ausschiebeposition from which the window sash can then be moved into the window opening.

The window sash advantageously have coupling means 31 on, as exemplified in the 4 to 6 are shown. On the embodiment and operation of the coupling agent will be discussed in more detail later.

When Nachrechvorgang, in which due to the prestressed spring elements 22 and 23 the underlying casement is pressed against the (still) overlying casement, the casement by means of the coupling means 31 Coupled with each other, so that the movement of one window sash is transferred to the other. As a result, all of the window sashes from the follower device can be successively moved side by side into the window opening, wherein only the sliding of one of the window sashes is necessary for this purpose. When releasing the window opening, the principle described above works the other way round. The sashes are in the Nachrückvorrichtung, as indicated by an arrow 30 indicated, inserted, with each sash only up to a certain stop on the frame 3 can be pushed. Due to its weight and / or due to a particular form of coupling agent 31 becomes the frame 3 while down - as by an arrow 29 indicated - procedure, so that the following sash over the window sash lying on the frame 3 can be pushed. This is repeated until all the sashes in the follower 2 stacked on top of each other.

A particular advantage of the roof sliding window is that when moving a sash in the window opening the device 13 is controllable so that a coupling rearward of the remaining window sash is omitted, and from the Nachrückvorrichtung 2 slid out window sash is moved alone in the window opening without him pulling another sash after himself. By moving the drive units 18 and 19 on the racks 16 respectively 17 , or alternatively by racking 16 . 17 by means of the drive units 18 and 19 , In a simple way, the spring tension of the spring elements 22 . 23 be influenced or adjusted. This makes it possible, when moving a sash from the Nachrückvorrichtung 2 into the window opening to prevent a coupling-up moving. Namely, the spring tension is reduced, while a window sash is moved into the window opening, the spring tension is not sufficient to the frame 3 with the remaining / remaining window sashes in the direction of the arrow 27 to move upwards. Rather, the window sash remain substantially in the previous position without moving. The coupling agents 31 can thus not be brought into operation with each other, so that the casement alone or detached from the underlying casement is moved into the window opening or can be.

This allows the user in particular a simple and straightforward cleaning of the outside of the window sash. By means of the device 13 It is possible for him to move one or more casements detached from one or more of the other window sash in the window opening, so that always a portion of the window opening remains released. Through this opening area, the user can reach through to clean the outside of the window sash. The roof sliding window described thus makes it possible in a simple manner, without the coupling means must be operated directly to prevent a mutual coupling of the sash when moving. Due to the advantageous embodiment of the device 13 it is possible verkuppelt or decoupled to move the window sash from the Nachrückvorrichtung in the window opening in any manner.

Since in such roof sliding windows the weight of the individual window sash can be comparatively high, it is advantageous to an electric motor drive 32 to provide for moving the casement. The drive is preferred 32 a gear, toothed belt or chain drive, which is engageable with the window sash associated racks in operative connection. Conveniently, the drive is in the area close to the window opening, spaced from the frame 3 , as in 3 represented, arranged. This allows the user to move the window sashes individually or continuously in the window opening. For emergency advantageously a clutch is provided by means of which the drive 32 can be decoupled from the window sashes, so that even in the case of a power failure, for example, the window sash can be moved without the friction torque of the drive must be overcome.

As best of the sectional view of the 3 can be seen, which is a top view of the carriage 8th represents is the frame 3 tiltable about a suitably aligned perpendicular to the direction of movement of the sash axis. The 3 shows on the one hand the frame 3 in a horizontal position, in which the frame is parallel or in a plane with the frame guide 28 lies, so that on the frame 3 lying window sash simply and horizontally in or on the frame guide 28 can be moved into the window opening (for example by means of the electric motor drive 32 ). Furthermore, in the 3 a tilted position of the frame 3 shown in dashed lines. Different high shock absorbers 33 and 34 on the sled 8th limit the tilting of the frame 3 such that it only from a first, in a plane with the frame guide 28 lying position in a second, with the frame guide 28 facing side down tilted position is displaced / tilted. The shock absorber 33 is correspondingly higher than the shock absorber 34 educated. Particularly advantageous are the shock absorbers 33 and 34 at least partially elastically deformable, so that shocks when tilting the frame 3 be steamed. Furthermore, advantageously also on the carriage 7 appropriate shock absorbers arranged.

Tilting the frame 3 allows it when moving a sash in or out of the Nachrückvorrichtung 2 that the sledges 7 . 8th or the frame 3 over the entire travel, so over the entire width of the sash, in height in the direction of the arrows 27 or 29 , depending on the direction of movement, is moved. If all the window sashes are next to each other in the window opening, the frame is located 3 advantageously in tilted position (shown in phantom), with his to the frame guide 28 pointing end at the height of the frame guide 28 so that when the first sash is inserted into the follower, the frame 3 "Slowly" down - in the direction of the arrow 29 - will proceed. Alternatively, the frame 3 also horizontally in the extension to the frame guide 28 lie (solid line) when all sashes are in the window opening.

The 4 to 6 show an embodiment of the above-mentioned coupling agent 31 the sash of the roof sliding window 1 in different perspective views. The 6 shows fittings 35 . 36 and 37 of three casements of the roof sliding window 1 , The fittings 35 . 36 and 37 each have one with the electric motor drive 32 operatively engageable rack 38 . 39 and 40 for moving the window sash. According to 6 are the fittings 35 to 37 and thus the corresponding associated window sash by means of the coupling means 31 detachably coupled together. Based on the fittings 36 and 37 should now be related to the 4 and 5 the coupling agents 31 be explained in more detail.

As a coupling agent 31 has the fitting 37 one on a flange 41 rotatably mounted roller 42 on, whose axis of rotation perpendicular to the direction of movement of the sash or the fittings 35 to 37 is aligned. The role 42 This forms a driving element 43 of the fitting 37 , The fitting 36 indicates to its fitting 37 associated end as entrainment a catch rail 44 on, which seen in cross section has a U-profile and obliquely, approximately at an angle of 45 ° to the fitting 36 is aligned. The two legs of the catch rail 44 embrace the role 42 , If the window sash is in the window opening, the movement of one of the window sashes or fittings thus becomes 36 . 37 on the other fitting 37 . 36 over the catch rail 44 and the role 42 transfer. Appropriately, the window sash are guided in the window opening, that they are displaceable only in the displacement direction, ie in a plane.

On the underside of the fitting 36 ends the fitting 37 closer legs of the catcher rail 44 so below the distal leg, that when moving the fitting 36 in the Nachrückvorrichtung 2 the role 42 below the fitting 36 emerge from the catch rail and on the underside of the fitting 36 can roll, and that when moving the fitting 36 from the Nachrückvorrichtung 2 the role 42 through the longer leg of the catch rail 44 is taken. Be the casement in the Nachrückvorrichtung 2 shifted and is the fitting 37 or the corresponding window sash completely on the frame 3 , so causes the inclined trailing rail 44 along with the role 42 that that's the role 42 exhibiting end of the fitting 37 is pressed down. Is the frame 3 tilted as described above, the on the frame 3 lying casement tilted accordingly, so that the fitting 36 having window sash over the fitting 37 having window sash can be pushed into the Nachrückvorrichtung. Accordingly, it behaves between the fittings 36 and 35 , As a result, the window sash in a simple manner on each other in the Nachrückvorrichtung 2 stacked.

Is by means of the device 13 the spring tension of the spring element 22 and 23 changed, so that a clutching nachzuschibt does not become the Fangschiene 44 when moving a sash from the Nachrückvorrichtung 2 over the roll 42 pushed past, so that the entrainment element 43 of the underlying sash (Rolle 42 ) is not taken.

To guide the window sash, the fittings each have at their ends two mutually perpendicular roller body 45 and 46 on, in the corresponding guides of the frame guide 28 einliegen and thereby support the window sash and lead.

At least the fitting 36 advantageously has at its the catch 44 end having a cam contour 47 on, which at the bottom spaced to the catch rail 44 arranged such that the roll 42 runs over the cam contour. The cam contour 47 causes either the fogging 36 or the fitting 37 and tilting the corresponding sash such that a folded sheet edge of the one sash located on the opposite side of the sash and intended to prevent water ingress between the sashes passes over the reel body 46 is lifted.

Overall, the advantageous roof sliding window thus provides a simple and inexpensive way to move the sash independently of each other in the window opening, and thus to enable a user in particular to clean the outside of the sash.

Claims (17)

Roof sliding window ( 1 ) with a plurality of window sashes which, in an open position releasing a window opening, comprise a follower device stacking the window sashes (FIG. 2 ) are slidable side by side in the window opening, wherein the Nachrückvorrichtung ( 2 ) at least one prestressed spring element ( 22 . 23 ) for automatically rearranging the overlapping sashes, and wherein the sashes comprise coupling means ( 31 ), by means of which a window sash is releasably coupled during its displacement with an advancing window sash, wherein the follower device ( 2 ) such a controllable device ( 13 ) for adjusting the spring tension of the spring element ( 22 . 23 ), that a coupling succeeding does not occur. Dachschiebefenster according to claim 1, characterized in that the Nachrückvorrichtung ( 2 ) a vertically movable and operatively connected to the spring element frame ( 3 ), on which the casements are stackable. Roof sliding window according to one of the preceding claims, characterized in that the spring element ( 22 . 23 ) between the frame ( 3 ) and a displaceable for adjusting the spring tension holding means ( 20 . 21 ) of the institution ( 13 ) is biased. Roof sliding window according to one of the preceding claims, characterized in that the holding means ( 20 . 21 ) is displaceable by electric motor. Sliding roof window according to one of the preceding claims, characterized in that the device ( 13 ) for moving the holding means ( 20 . 21 ) an electric motor rack drive ( 14 . 15 ) having. Roof sliding window according to one of the preceding claims, characterized in that the spring element ( 22 . 23 ) is designed as a tension spring. Roof sliding window according to one of the preceding claims, characterized in that the spring element ( 22 . 23 ) as a spiral spring ( 24 ) is trained. Roof sliding window according to one of the preceding claims, characterized in that a cable, toothed belt and / or chain hoist ( 4 . 5 ) between the frame ( 3 ) and the spring element ( 22 . 23 ) is interposed. Roof sliding window according to one of the preceding claims, characterized in that the frame ( 3 ) is tiltably mounted. Dachschiebefenster according to any one of the preceding claims, characterized in that the Nachrückvorrichtung ( 2 ) at least one, the frame ( 3 ) stored carriages ( 7 . 8th ) having. Sliding roof window according to one of the preceding claims, characterized in that the window sashes act as coupling means ( 31 ) at least one carrier element ( 43 ) exhibit. Dachschiebefenster according to one of the preceding claims, characterized in that the overhead window sash as entrainment a Fangschiene ( 44 ), in which the entrainment element ( 43 ) engages an underlying window sash when coupling Nachrücken. Roof sliding window according to claim 12, characterized in that the entrainment element ( 43 ) of the underlying window sash as a rotatably mounted roller ( 42 ) is trained. Roof sliding window according to one of the preceding claims 12 or 13, characterized characterized in that the catching rail ( 44 ) seen in cross-section has a U-profile. Dachschiebefenster according to any one of the preceding claims 12, 13 or 14, characterized in that the catch rail ( 44 ) is aligned obliquely in the direction of movement. Dachschiebefenster according to any one of the preceding claims, characterized in that each of the window sash a rack ( 38 . 39 . 40 ), which with a, in particular electromotive drive ( 32 ) can be brought into operative connection for moving the window sash in the / the window opening. Sliding roof window according to one of the preceding claims, characterized by a sensor for detecting the position of a window sash displaced into the window opening.

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