EP0690191B1 - Window with swinging or tilting frame - Google Patents

Abstract

The leaf (2) of the window is mounted in the fixed frame (1) via two hinging or tilting (3) bearings. Each bearing has one half (24) partly countersunk in the leaf and the other (23) similarly accommodated in the frame. A two-part interchangeable strip (11,12) at each bearing covers the gap between frame and leaf on the indoor side. One part is fixed to the leaf and the other to the frame. The two parts of the strip are of the same length, and the recesses accommodating the bearing halves in the leaf and frame are of the same size and shape. On each bearing half there can be a pin (19) parallel to the place of the leaf and to the hinge axis, for power transmission and to aid assembly. The drillings in leaf and frame to accommodate the pins can be made with the same tools and setting irrespective of the type of bearing. <IMAGE>

Description

The invention is a both as a turn and swing window usable window.

A turning wing is one around a vertical, parallel to the Wing-level central axis of rotating wing.

When opening, for example, the right half of the wing enters Inside the room, while then the left half of the wing faces outwards is moved there.

In contrast, runs with a swing wing, the Storage in the horizontal direction, the Swinging wing bearing the middle of the vertical Spars of the wing and the fixed frame are assigned. Only a single vertical axis of rotation during the turning wing has two parallel wings horizontal axes of rotation running towards each other. In a the first opening movement, the wing is initially a usually rotated lower horizontal axis, so that upper wing end enters the room and the lower Wing end outwards. This rotary movement is limited for example, to an angle of the order of 60 °.

If you then pull the upper wing end even more Pulls inside the room, so there is a second rotation of the Wing opposite the fixed frame around the second parallel Axis of rotation, which, as said, is preferably higher than the first axis of rotation. The wing can be rotated so much be that the outer surface with the wing closed now completely into the room and there one in particular vertical position, whereby then of course the wing opposite the Starting position is offset in parallel.

From the above it follows that the turning device of the reversible wing from the swivel device of the Swing wing differs technically and in the kinematics. The turning device is large and all around a lower half of the bearing and an upper one Half of the bearing, which is connected to one another via a bearing pin are connected, the bearing or its geometric axis generally in front of the room a little Wing level is located.

In contrast, the pivoting device of the swing wing an intermediate link, which is basically a lever is hinged at both ends. The lower one, for example End of the intermediate link rotatable on the fixed frame bearing part stored and this bearing axis forms the first axis of rotation of the Swinging wing. The upper end of the wing closed The intermediate link is on a second axis of rotation Wing frame bearing part stored parallel to the first The axis of rotation runs and the second axis of rotation of the wing forms.

Both wings have in common that one wing half at Opening to the outside occurs and the other insides Moved inside the room. Because the gap between the Fixed frame and the sash using a frame bar is covered, the wing can only be opened if you form this bar in two parts. At a Swinging wing bearing is one part of this bar on the fixed frame and it extends from the lower cross member of the fixed frame up to the swing wing bearing. Of the other part of this bar goes from the top of the Swinging wing bearing or its projecting housing part up to to the upper cross member of the wing and it makes when opening and Closing the wing with its rotational movement. This bar is generally called change bar.

The situation is similar for a reversible wing, i.e. there is also a two-part changing bar there, however, this is the horizontal spars of the wing and the assigned to a fixed frame. But it is also in two parts.

At least the swing arm bearings that have become known so far lead to different lengths due to their construction Split the two-part change bar. This is production technology is undoubtedly a disadvantage.

Form the casement bearing part and the fixed frame bearing part together a kind of housing of the swing wing bearing or Reversible wing bearing. As a result, one must in the spars of the Wing and the fixed frame in the area of the bearing a correspondingly large and form-fitting recess provide in which one can use the camp. At Swinging wing bearings, it is common for this bearing housing about two thirds is inserted into the frame, so that protrudes about a third towards the inside of the room. The Alternating bar parts are this above part of the Assigned to the housing, i.e. you are at this View to a certain extent in front of the inner surface of the Frame, if you mentally separate them from these frames. Of course, but are in the above Way their two parts with the wing or the fixed Frame firmly connected and thus form a unit. The Bearing is usually flush with the front and side the change bar.

The situation is similar with a reversible wing bearing. Also if you disregard the change strips, this protrudes the inner window level into the interior, during the remaining part also in a common recess of the both frames are in place.

If a window manufacturer takes turns and sash So far, this has resulted in that depending on the type of window being made different recesses on the bars must attach because the housing of the two bearings are different sizes. As a result, the Machines in the transition from one window production to the other changed and possibly equipped with other tools become. Other drilling jigs are usually also necessary, provided that the holes are created with the help of such drilling jigs. Both the swing-wing bearings and the reversible-wing bearings are usually parallel to at least one Axis of rotation or the axis of rotation extending pin, for which corresponding holes have to be drilled.

Document DE-A-2 309 661 discloses a window with a fixed frame and one attached to it by means of two pivoting wing bearings, each bearing one Sash frame bearing part and a fixed frame bearing part, which has a Swivel device coupled together and at least partially at the same time in the Stems of the fixed frame and the sash are housed sunk, Furthermore, with each bearing, the gap between the fixed frame and the two-part interchangeable bar that covers the sash frame spar on the inside is present, the one alternating bar part on the fixed frame and the further other changeable bar part is arranged on the casement, the two alternating bar parts have the same length and the same Recess for each bearing in the two frames for receiving the sunk mounted part of the swing wing bearing at least substantially the same size and is designed the same.

It is the task of a window or the like with one fixed frame and one attached to it by means of two turning or Swing wing bearing mounted wings so that it for the window manufacturer in production without Change the machine setting or a Tool retrofitting is possible, one after the other and therefore without Loss of time either a casement window or a Manufacture swing window.

This object is achieved with a Window solved which the Features of claim 1.

So if the window manufacturer has the fixed frame and the Produces sash frames, i.e. built up from individual spars, being both wooden and wooden spars Can trade aluminum or plastic, so he brings to the relevant spars, for example, with a swing wing the vertical bars of the fixed frame and the Frame, the corresponding recesses or Milled and, if necessary, holes. If he instead of making a reversible wing of the same size so he can use the recesses for the reversible wing bearing the same machine setting and the same tools on the upper and lower bars of the fixed frame and the Attach the casement. A significant simplification in the manufacture is achieved above all by the fact that now both for the swing wing and the reversible wing the two alternating bar parts are of equal length, so that one twice as large series can be launched and one too during assembly not between a short and a long one Alternating bar part must distinguish. The same size Recesses in the spars for the swing-wing bearing and the reversible wing bearing are possible in that the housing of the two camps the same or at least essentially have the same dimensions. Slight differences can of course be there where this affects the Formation, shape and size of the bearing recess in the bars does not affect.

A further development of the invention results from claim 2. This claim deals with the manufacture of the bore or holes for receiving the or the, both on Swing wing bearing as well as on the reversible wing bearing provided pin shown in the drawing. she are primarily for power transmission from the camp to the Framework important and necessary. Do not overlook be that both swing wing and reversible wing one can be of considerable size and usually are glazed at least twice, so that overall right high wing weights arise.

As already mentioned, there is between the casement and the fixed frame or frame a gap that the Allows movement of the wing relative to the fixed frame. To open even if the wing is warped to allow without touching the two frames, the Gap should be large enough. This means on the other Side that you absolutely have to seal it. It is therefore It is customary to distinguish between the inside, that is, the bottom of the mentioned common recess associated end of the camp and each frame one or a common seal starts. Of course, this also results here Problem that this seal or seals used must be in two parts because when opening the Wing that moves a part together with the wing, while the other is none compared to the fixed frame Performs movements. On the inside of the bearing housing is therefore usually a so-called Cross joint present. When opening the wing remains in the In the case of a swing wing, for example, that below the The part of the bearing housing located at the transverse joint, while the upper part follows the swivel movement. The same applies to the reversible wing.

A further embodiment results from claim 3 of the invention for this area of bearings. These mentioned mounting strip is fixed to the casement part or fixed frame bearing part formed, in the case of a Casting is therefore cast on and generally requires it no post-processing. As a result, you can use any of the a sealing strip part in both parts of the fastening strip attach them with their front ends can be in direct contact with one another. With regard to the Cross-sectional shape of the sealing strip is largely free. It must be so in the area of the mounting strip be designed so that they can be easily attached to it and if necessary, can also decrease for replacement. The width - seen perpendicular to the wing plane - one can measure that the end of the sealing strip facing away from the frame with certainty on the assigned edge of the fixed frame or Sash is pressed with the intended force, when the window is closed. So you can different profile designs for the fixed frame and the sash can be provided. The two Sealing strip parts can easily be made via the relevant Keep running the bearings up and down if this happens the other frame construction allowed. Possibly. you can but also on the two sealing strip parts of the bearing Connect further sealing strip parts that are attached the front ends of the two sealing strip parts of the Connect the bearing and until the next one transverse part of a sealing frame are sufficient.

The swing-wing bearing has, for example, on his middle area of the lower horizontal wing spar rotatable handle, with the help of which one Locking the closed wing against the fixed Can make frames. Satisfied with modern constructions but not only with a lock in the immediate area of this twist grip, rather acts this on a suitable window gear with which Help advanced drive rods moved back and forth can be. There are on the drive rods Locking elements, e.g. adjustable roller pins or Like. That with locking counter elements on the fixed frame cooperate, the latter being, for example Strike plates or the like. Can act. That way to lock the Do wing on all four spars, the Driving rods are guided over corner drives. This Constructions are known by themselves, which is why they are do not need to be explained here.

EP 0 563 550 A2 shows that the special Bearing construction of the rotatable about an approximately central axis Wing an offset of the grooves for the incoming and the further driving rod in the storage area is necessary.

Claim 5 describes a further training of Swing wing or reversible wing bearing, which the easy accommodation and storage one each Coupling element in the wing bearing part allows. The training for both types of bearings are the same. This then also enables Use of the same coupling element according to claim 6 with both bearing types. The angular shape of the Coupling element allows in a very advantageous manner Offset of the displacement levels of the two drive rods to Camp or away from the camp.

Further configurations of the bearings, especially in the area of the coupling element result from the subclaims and the following description of Embodiments. This description can also Effects and advantages of the special designs taken from the two bearings and the frame in the storage area become.

Figur 1

eine Innenansicht eines Schwingflügellagers bei geschlossenem Flügel;

Figur 2

die Innenansicht eines Wendeflügels bei geschlossenem Flügel;

Figur 3

in perspektivischer Darstellung ein Schwingflügellager in der Stellung des geschlossenen Flügels;

Figur 3a

herausgezeichnet perspektivisch das Kupplungselement der Figur 3;

Figur 4

wiederum perspektivisch ein Wendeflügellager, wobei die Darstellungen der Figuren 3 und 4 jeweils den Einbaulagen entsprechen;

Figur 5

perspektivisch die Rückseite des Schwingflügellagers;

Figur 6

auch perspektivisch die Rückseite des Wendeflügellagers;

Figur 7

einen Schnitt durch die beiden Rahmen im Bereich des Schwingflügellagers;

Figur 8

einen entsprechenden Schnitt durch die beiden Rahmen im Bereich des Wendeflügellagers.

The drawing shows these exemplary embodiments of the invention. Here represent:

Figure 1

an interior view of a swing wing bearing with the wing closed;

Figure 2

the inside view of a reversible wing with the wing closed;

Figure 3

a perspective view of a swing wing bearing in the position of the closed wing;

Figure 3a

drawn out perspective the coupling element of Figure 3;

Figure 4

again a reversible wing bearing in perspective, the representations of FIGS. 3 and 4 each corresponding to the installation positions;

Figure 5

perspectively the back of the swing wing bearing;

Figure 6

also the rear of the reversible wing bearing in perspective;

Figure 7

a section through the two frames in the area of the swing wing bearing;

Figure 8

a corresponding section through the two frames in the area of the reversible wing bearing.

The swing window of Figure 1 has a fixed Frame 1 and a sash 2, which is glazed. Both are in a known manner via two swing-wing bearings 3 connected with each other. Via a swivel on the casement 2 stored rotary handle 4 can interlock released both frames and then opened the sash become. The sash 2 initially tilts one first lower axis of rotation 5, which is in the horizontal direction, runs parallel to the upper and lower frame bars. The lower wing end consequently follows when opening outside and the upper one inside. This swivel or Tilting movement of the wing 2 ends according to a predetermined An angle of approximately 60 °, for example.

It is possible in a known manner that the wing then around a higher, parallel one second axis of rotation 6 continues to rotate in the same direction. In the The wing 2 is then approximately parallel to the rotary position Starting position, however, he is now compared to the solid Frame offset towards the interior of the room. The outer pane surface is facing the interior of the room so that it is light can be cleaned. The closing takes place in reverse Order, i.e. first the rotation around the second Rotation axis 6 made and then the pivoting back of the wing in the starting position about the first axis of rotation.

A reversible casement window is shown in FIG. It points also a fixed frame 1 and a glazed Casement 2 on. The latter is around a middle, vertical extending axis of rotation 7 rotatable. After pressing the Rotary handle 4, for example on the right vertical bar of the Wing 2 is located, and the associated loosening one Locking device of known type can the wing 2 around the vertical axis of rotation 3 are rotated, for example the right half of the wing enters the room while at the same time the left half of the wing is pivoted outwards becomes. This is due to the use of two reversible wing bearings 8 possible. These are the upper and lower vertical bars assigned to the fixed frame 1 and the sash 2, while the swing wing bearing 3 on the left and right vertical bars of the fixed frame and the Casement 2 are located.

Located between the fixed frame 1 and the sash 2 each a gap space that the relative movement enables. Cold air penetration or outflow To prevent warm indoor air from the room, it must Gap as will be explained in more detail below, be sealed. In any case, to this too For the purpose of a so-called wing flap, which covered the gap space on the inside. It exists with Swinging wing of Figure 1 from an upper and lower continuous horizontal bar 9 or 10, and one vertical left and right bar. These strips will be also known as changing strips. Is left and right as a result, a lower alternating bar part 11 and a Upper change bar part 12 available. The bottom two Alternating bar parts and the lower horizontal bar 10 are on the fixed frame, while the upper ones Alternating bar parts 12 and the upper horizontal bar 9 am Sash frames are attached. The upper end of the lower alternating strip part 11 to the housing 13 of the Swing wing bearing more precisely up to its protruding lower end and the lower end of the upper Alternating bar part 12 up to the upper end of the housing 13 of the swing leaf bearing 3. The dimensions of the housing 13 are now chosen so that the lower alternating bar part and the upper part of the replacement ledge is exactly the same length. According to FIGS. 1 and 2, both frames are preferably each mitred. The lower lies in a known manner End of the upper change bar part 12 on the upper Face 14 of the housing 3 on, while the upper end of the lower alternating bar part 11 on the down facing surface 15 of the housing 13 abuts.

The same applies to the reversible wing, i.e. there is on upper and lower wing end a left change bar part 16 and a right change bar part 17. The two left Alternating bar parts are connected to the fixed frame 1, as well as the left vertical bar of the Wing flaps. By appropriate shaping and Sizing is also the left and right Alternating bar parts 16 and 17 of the same length. Of course, the changing bar parts each have also the same cross section and this corresponds to that assigned bearing housing part.

The housing 13 of the swing bearing 3 and 18 of the Reversible leaf bearings 8 are dimensioned the same. Consequently you can see the common recesses in the spars of the fixed frame and the sash regardless of whether it is it is a reversible wing or a swing wing, train each the same size and uniformly. The same applies to the size and arrangement of Holes in the fixed frame and in the casement for each two to the left and right (swing-wing bearing) or to the left projecting pins 19 at the top and bottom (reversible leaf bearing) This means that you can manufacture the swing wing frame and the reversible sash frame can be standardized and as a result, a transition in manufacturing from one Swinging wing on a reversible wing and vice versa none Retrofitting the machine or using other tools or drilling jigs required.

According to FIGS. 3 and 5, the swing-wing bearing 3 consists of a sash frame bearing part 20, a fixed frame bearing part 21 and an intermediate link 22. The lower end of the latter is pivotally mounted on the fixed frame bearing part 21, the Pivot axis the mentioned first axis of rotation 5 (FIG. 1) forms. In contrast, are the upper end of the pontic 22 and the fixed frame bearing part 21 via an upper or second axis of rotation 6 rotatably coupled together. From This construction is known in principle, which is why it no further presentation and explanation is required.

The reversible wing bearing 8 consists of a fixed frame bearing part 23 and a casement bearing part 24. They are over a vertical axis of rotation rotatably connected to each other, the geometric vertical axis of rotation in Figures 2 and 4 with 7 is designated. In the area of the bearing pin that is Bearing housing bulged toward the interior of the room according to Figure 4.

E.g. from Figures 3 and 6 to 8 you can see that at the rear of each bearing or bearing housing in the installed position a mounting strip 26 is located in all Embodiments preferably a T-shaped Has cross section. It is according to FIGS. 5 and 6 divided in two, the two parts each up to the cross joint 28 of the camp are enough. On the mounting bar 26 can 7 and 8, a sealing strip 27 are attached, which is also split into two, with the two facing each other facing ends each extend to the transverse joint 28. in the In the case of a fastening strip 26 which is T-shaped in cross section the sealing strip 27 has a substantially V-shaped Cross section, the free V-leg ends notches for Engage with the free ends of the T-crossbar Have mounting strip. Is on the V-tip one preferably on both sides in cross section reduced contact strip 29, which is preferably a higher one Has elasticity than the rest of the sealing strip 27. The free longitudinal edges of the contact strip 29 are included an aluminum or plastic profile on each of a web 30 or 31 of the casement 2 or the fixed frame 1 sealing on. The design of profiles or cross sections frames 1 and 2 can also be used within relatively wide limits can be varied as the cross section of the sealing strip 27 and ultimately also the fastening strip 26. The sealing strip only has the task of filling the space between the inner housing end of the swing wing bearing 3 or Reversible wing bearing 8 and the frame-side contact surface for to bridge the seal. In any case, this will the gap 32 on the outer surface of the two frames 1, 2 locked. It can in particular in a known manner inner area of the two frames still additional Seals should be in place, as a rule are all-round seals. From Figures 5 and 6 it is easy to see that the two parts of the Sealing strip 27 over the two parts of the fastening strip 26 extended up and down or left and right can be until the next one is reached transverse spar. There they go in each transverse sealing strips over.

A coupling element 33 can be seen in FIG same design both for swing-wing bearings and can be used with the reversible leaf bearing. Both camps are equipped with identical guides for this.

These are located in the sash frame bearing part 20 or 24. It is an important part of the Locking device, not shown, with the Turn handle 4 (Figures 1 and 2). The coupling element 33 has an angular shape with a long angle leg 34 and a short angle leg 35. Located on the latter a removable, also angular one Extension piece 36. On the free leg of the latter is a coupling element 37 attached. Likewise at the free end of the long angle leg 34. It is in both cases to cones that are in the same direction across the plane of their Partly protrude. They are not used for hanging one each shown drive rod, which has a corresponding bore owns. The two drive rods run in frame grooves that are on the casement and a certain one Have height difference that by the coupling element 33rd is bridged. The training of the Sash frame known prior art.

At least one of the drive rods carries in a suitable place a locking member, for example a locking pin, in particular an adjustable roller pin, which with a Locking counter member on the fixed frame, for example so-called striking plate interacts. It is also one immediate locking of the free connecting rod end in a corresponding recording on the fixed frame in addition or alternatively possible.

It is easy to see that by the removable attachment of the extension piece 36 on the coupling element 33 a easy adaptation to the spatial conditions and the Type of drive rod is possible. Besides, it has to be of course not with the coupling elements 37 are necessarily cones, rather are other coupling elements, for example, pairs of racks and the like. possible. In this respect, the known state of the art pointed out in the field of drive rod control. The Figures 3 and 4 it can be seen that in a preferably about middle position of the coupling element 33 its free Ends with the coupling elements 37 approximately the same distance, in Measured lengthways, protrude.

FIGS. 3 and 4 also show that one of the Pin 19 for power transmission and / or Bearing alignments with the frame an elongated hole 38 on End region of the long angle leg 34 passes through. In addition, this end region is provided with lateral edge strips 39 and 40 (Figure 3a). Each reaches under one of two short strips 41 and 42 of the casement bearing part 20 or 24. In this way, an anti-lift device is created in this area. E.g. in Figures 4 and 5 is the Longitudinal guide on the sash frame bearing part for the Coupling element 33 can be seen, which extends over the entire Length of the wing frame bearing part extends. Over the cone 19 and the slot 38 you get an additional Longitudinal guidance. The longitudinal guide 43 is in Figure 5 in the upper Area overlapped by a profiled web 43 and thereby tunnel-like at this point. That way gets an anti-lift device there too. On the outside this profiled web 43 is one of the pins 19th

At the transition from the long angle leg 34 to the short one Angle leg 35 has the coupling element 33 two after Side ridges protruding in opposite directions 44 and 45. Each of these sidebars is in one in Cross-section adapted guide groove 46 or 47 of Wing frame bearing part slidably guided.

At the transition from the short angle leg 35 of the Coupling element 33 for removable extension piece 36 there are two to the side or perpendicular to the wing plane edge-open guide grooves 48 and 49. These engage in Longitudinal edges of two opposing guide strips 50 and 51 of the casement bearing part. You get on this Way improved longitudinal guidance and anti-lifting. The guide strips 50 and 51 run to the top of the Intermediate member 22 through.

Claims (11)

1. A window which can be used both as a turn window and also as a tilt window comprising a fixed frame (1) and a leaf (2) which is mounted thereto by means of two turn leaf mountings (8) or tilt leaf mountings (3), wherein each mounting (3, 8) has a leaf frame mounting portion (20, 24) and a fixed frame mounting portion (21, 23) which are coupled together by way of a turn device (25) and a tilt device (22) respectively or are at least partially at the same time disposed in recessed relationship in the frame members of the fixed frame (1) and the leaf frame (2), wherein moreover at each mounting (3, 8) there is a two-part change strip (11, 12; 16, 17) which covers over the gap between the window frame and the leaf frame members at the inside of the room, wherein the one change strip part (11, 16) is arranged on the fixed frame (1) and the other change strip part (12, 17) extending same is arranged on the leaf frame (2), wherein the two change strip parts (11, 12; 16, 17) are of equal length and the common recess for each mounting (3, 8) in the two frames (1, 2) for receiving the portion which is mounted in recessed relationship of the turn leaf mounting (8) and the tilt leaf mounting (3) respectively is at least substantially of the same size and the same configuration so that without adaptation of the recess it is possible selectively to insert both a turn leaf mounting (8) and also a tilt leaf mounting (3) which have a housing which is of equal dimensions.
2. A window according to claim 1 characterised in that disposed on the leaf frame mounting portion (20, 24) and on the fixed frame mounting portion (21, 23) of each mounting (3, 8) is at least one projection (19) for force transmission and/or as a mounting aid, which projection extends parallel to the plane of the leaf and to the geometrical axis or axes (5, 6; 7) of said mounting (3, 8), and that at least the bores on the frames (1, 2) for receiving said projections (19) are disposed at the same location irrespective of the later use of the window as a turn window or a tilt window.
3. A window according to claim 1 or claim 2 characterised by a fixing strip (26), which in particular is formed on the mounting, for a sealing strip (27) at the rear of the mounting (3, 8), which is provided partially on the leaf frame mounting portion (20, 24) and for the other part on the fixed frame mounting portion (21, 23), wherein the fixing strip (26) and the sealing strip (27) are interrupted at the transverse junction (28) between the two frame mounting portions.
4. A window according to claim 3 characterised in that the fixing strip (26) is of a T-shaped cross-section and the sealing strip (27) with its end remote from the mounting inwardly sealingly covers over the gap (32) between the leaf frame member and the fixed frame member at least in the mounting region.
5. A window according to one of the preceding claims characterised by a guide means of the leaf frame mounting portion (20, 24) of the tilt leaf (3) or the turn leaf (8) respectively for a coupling element (33) of a locking device, which can be connected at both ends to a respective drive bar, wherein at least one drive bar carries at least one locking member co-operating with a counterpart locking member on the fixed frame (1), wherein moreover the drive bars are reciprocable by means of an actuating device (4) on the leaf frame (2).
6. A window according to claim 5 characterised in that the coupling element (33) is of an angular configuration and has coupling connecting elements (37) for the drive bars which are displaced relative to each other approximately by the internal width of the mounting (3, 8) as measured in the direction of the at least one geometrical axis of rotation (5, 6; 7).
7. A window according to claim 6 characterised in that the long limb (34) of the angular configuration of the coupling element (33) somewhat exceeds the length of the mounting (3, 8), as measured in said direction, and disposed at the free end of the short limb (35) of the angular configuration is a removable extension portion (36) which is also of an angular configuration with one of the coupling connecting elements (37), wherein in an approximately central position of displacement of the coupling element (33) the free ends thereof with the coupling connecting elements (37) project approximately equally far beyond the housing of the mounting.
8. A window according to one of claims 5 to 7 characterised in that the coupling connecting elements (37) are suspension projections which project transversely with respect to the plane of the drive bar in the same direction.
9. A window according to one of claims 5 to 8 characterised in that one of the projections (19) projects through a slot (38) at the end region of the long limb (34) of the angular configuration, for the transmission of force, and said end region engages with lateral edge strips (39, 40) or edges under mutually facing short strips (41, 42) of the leaf frame mounting portion (20, 24).
10. A window according to one of claims 5 to 9 characterised in that lateral edge strips (44, 45) of the long limb (34) at the transition from the long to the short limb (35) of the coupling element (33) are displaceably guided in a respective guide groove (46, 47) which is adapted thereto in cross-section in the leaf frame mounting portion (20, 24).
11. A window according to one of claims 5 to 10 characterised in that disposed at the transition from the short limb (35) of the coupling element (33) to the removable extension portion (36) are two guide grooves (48, 49) which are open at the edge laterally or perpendicularly to the plane of the leaf and into which engage two mutually facing guide strips (50, 51) of the leaf frame mounting portion (20, 24).

Images