DE20109837U1 - Night ventilation device on a window, a door or the like. and windows, door or the like. with night vent - Google Patents

Abstract

Air- ventilating device has a bracing arm (7) which can rotate about an axis running vertical to the frame folding surface (17) on a fixed frame (18) using a guide (19) and can slide in the folding or peripheral direction (5). The bracing arm is coupled to the wings (3) using a connecting rod (6). An air- ventilating element (13) can be moved via the connecting rod relative to the air-ventilating element (8). Preferred Features: One of the air-ventilating elements has a number of gears for the other air-ventilating element.

Description

TELEPHONE: 0 711/784731*·· «FAX :·· 0 7 11? 7 98« 9 9 5 / 9 6 KÖHLER SCHMID + P. RUPPMANNSTR. 27 D-70565 STUTTGART

KÖHLER SCHMID + PARTNER

PATENT ATTORNEYS

24 600 Sl/h

ROTO FRANK AG

Stuttgarter Str. 145-149

70 771 Leinfelden-Echterdingen

Gap ventilation device on a window, door or the like as well as window, door or the like with gap ventilation device

The invention relates to a gap ventilation device on a fixed frame and a sash of a window, a door or the like that can be positioned opposite it, comprising a sash-side gap ventilation element provided on the sash and a gap ventilation element associated therewith on the fitting arm, wherein the fitting arm is arranged in a fold between the sash and the fixed frame and is rotatably mounted on the sash about a sash-side axis of rotation running perpendicular to the sash fold surface.

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and wherein one of the gap ventilation elements is coupled to a drive rod of a drive rod fitting guided on the sash in the circumferential direction of the rebate and is movable relative to the other gap ventilation element and the two gap ventilation elements can be brought into engagement with one another by such relative movement while fixing the sash in at least one gap ventilation position and can be separated from one another while releasing the sash in a gap ventilation position. The invention further relates to a window, a door or the like with such a gap ventilation device.

The prior art that forms the generic type is known from EP-A-0 051 309. Figures 2 9 to 33 of this prior publication relate to a gap ventilation device, in which the additional link of a scissor-stay provided between a sash and a fixed frame is used as the fitting arm in the above sense. As is usual, the additional link is rotatably mounted on the sash on the one hand and on a scissor-stay arm on the other. The sash-side rotation axis of the additional link is firmly connected to a sash-fixed faceplate. This covers a drive rod of a drive rod fitting that can be moved on the sash in the circumferential direction of the rebate. The end of the additional link that is remote from the sash-side pivot bearing is provided as the fitting arm-side gap ventilation element, and has a toothing for this purpose. The associated sash-side gap ventilation

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The control element is formed by an actuator which is connected to the drive rod of the drive rod fitting and can be moved in the circumferential direction of the sash rebate and which also has a toothing. If the sash is tilted with a small gap width relative to the fixed frame, the toothing of the additional link and actuator can be brought into engagement with one another by operating the drive rod. The extension arm of the extension scissors is thus locked in its current pivoting position relative to the sash and the fixed frame and thus ensures that the sash is supported on the fixed frame, which prevents a change in the gap tilt position assumed by the sash. The disadvantage of the previously known gap ventilation device is integrated into an extension scissors and is therefore tied to it, for example, in terms of its spatial arrangement. The conditions are correspondingly inflexible in the case of previously known windows, doors or the like with regard to the arrangement of the gap ventilation device.

The aim of the present invention is to remedy this situation.

According to the invention, this object is achieved by the gap ventilation device according to claim 1 and by the window, door or the like according to claim 12.

The gap ventilation device according to the claim is independent and can therefore be implemented independently of a scissor-stay. Its spatial arrangement on the relevant sash and the relevant fixed frame is therefore largely free and can therefore be selected as required. In particular, the gap ventilation device according to the invention does not necessarily have to be installed in a corner area of the sash and fixed frame that is preferred for the installation of a scissor-stay. Instead, if required, it can also be installed in the middle of the sash and fixed frame or on a sash corner opposite the scissor-stay. It is also possible to use the gap ventilation device together with a scissor-stay and then - especially in the case of large sashes - to use it as an additional device for sash storage and thus to protect the relevant sash against twisting. The use of a fitting arm according to the invention as a carrier of a gap ventilation element advantageously requires a large gap width range over which the sash can be locked in gap ventilation positions, with an appropriate fitting arm length and an appropriate arrangement of the gap ventilation elements. Windows, doors or the like according to the invention are characterized by corresponding advantages.

Special embodiments of the gap ventilation device according to claim 1 result from the dependent claims 2 to

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The gap ventilation device according to claim 2 allows the sash to be positioned with different gap widths relative to the fixed frame. If both gap ventilation elements have a plurality of engagements, multiple engagement can be achieved and thus a particularly effective support of the sash relative to the fixed frame can be achieved.

Particularly simple structural designs of the invention are described in claims 3 and 4. Plate-like gap ventilation elements (claim 3) can be easily accommodated in the rebate between the sash and the fixed frame.

According to the invention, a gap ventilation device as can be found in claim 5 and by means of which a sash can be supported in a tilted position relative to the fixed frame is preferred; however, inventive designs are also conceivable which serve to fix sashes parked in parallel.

The variant of the invention according to claim 6 is intended for use in the case of sashes that can be set in a gap ventilation position relative to the associated fixed frame and are also mounted so that they can rotate on the fixed frame. After the fitting arm of the gap ventilation device is released by the rotating-sliding guide on the fixed frame side in its direction of movement associated with the rotation of the sash when the drive rod fitting is in the ready-to-rotate position, it can be moved by

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decouple from the fixed frame and thus does not hinder the rotation opening of the sash.

In the case of the gap ventilation device according to claim 7, it is ensured that the fitting arm is aligned along the relevant sash rebate surface when the drive rod fitting is in the locking and/or rotation-ready position. Uncontrolled pivoting of the fitting arm, particularly when the sash is open for rotation, is thereby avoided. It is thus impossible for the fitting arm to assume rotational positions that would hinder the closing of the open for rotation sash.

Designs of the invention which are preferred for manufacturing or construction reasons are described in claims 8 and 9.

The gap ventilation device according to the invention according to claim 10 can, in addition to its actual task, take on the function of an opening limiter on a sash in the tilt opening position. Such a gap ventilation device is therefore particularly intended for use as a "second scissors", i.e. as a sash bearing in addition to an existing opening scissors.

The inventive design according to claim 11 is characterized in that an accidental switching of the drive rod fitting from the tilt to the ready-to-turn position and vice versa is excluded, but at the same time it is possible to transfer the drive rod fitting from a ready-to-tilt position to a gap-tilt position and consequently to move the sash from a tilt to a gap-ventilation position and to lock it in the gap-ventilation position.

The invention is explained in more detail below using exemplary schematic representations. They show:

Fig. 1 a sash-side drive rod fitting with the sash-side part of a gap ventilation device and an incorrect operation lock in the plan view of the sash rebate surface,

Fig. 2 the drive rod fitting according to Fig. 1 in the view perpendicular to the main sash plane,

Fig. 3 a fixed frame fitting in perspective view,

Fig. 4 the fitting part according to Fig. 3 in the view perpendicular to the main plane of the fixed frame,

Fig. 5 the fitting part according to Figs. 3 and 4 in the view in the direction of arrow V in Fig. 4,

to 8 the drive rod fitting according to Figs. 1 and 2 as well as the fitting part according to Figs. 3 to 5 in construction unit and with the sash closed and with locking, turn-ready and tilt-ready positions of the drive rod fitting,

9, 10 the assembly according to Figs. 6 to 8 when transferring the drive rod fitting and the sash into a gap tilt position,

11, 12 the assembly according to Figs. 6 to 10 with two further gap tilt positions of the drive rod fitting and the sash,

Fig. 13 the assembly according to Figs. 6 to 12 with the sash opened to its maximum tilt position,

Fig. 14 the drive rod fitting according to Figs. 1 and 2 in a top view of the underside facing the sash,

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Fig. 15 the operating unit of the mishandling lock according to Figs. 1, 2 and 14,

the upper part of an operating unit for a further misuse lock,

Adapter caps for the upper part of the operating unit according to Figs. 16, 17 and

2 0 to 22 the area of the mishandling lock in Fig. 14 with different switching positions of the drive rod fitting.

According to Figs. 1 and 2, a sash-side drive rod fitting 1 comprises a faceplate 4 screwed to an upper horizontal sash rebate surface 2 with a sash 3 of a window, a drive rod 6 guided on the underside thereof so as to be movable in the rebate circumferential direction 5, a fitting arm 7, a toothed plate 8 and an anti-mishandling device 9 with an actuating unit 10.

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The fitting arm 7 is hinged at one end to the drive rod 6 via a rotation axis 11 running perpendicular to the sash rebate surface 2. The rotation axis 11 passes through a longitudinal recess 12 of the faceplate 4 extending in the circumferential direction 5 of the rebate. Close to the rotation axis 11, the fitting arm 7 is provided with a stamped embossing 13 which has a tooth-like shape at its free end. The rotation axis 11 and, via this, the fitting arm 7 can be adjusted relative to the drive rod 6 by means of an eccentric bolt.

At the end remote from the rotation axis 11, the fitting arm 7 has a guide element running perpendicular to the sash rebate surface 2 in the form of a guide pin 14 provided with a mushroom head.

The toothed plate 8 is firmly connected to the faceplate 4 and consequently also to the sash 3. On its side facing the punched embossing 13 of the fitting arm 7, the toothed plate 8 is provided with a toothing 15 which comprises a plurality of engagements 16 for the tooth-like punched embossing 13 which follow one another in the transverse direction of the main plane of the sash 2. The toothed plate 8 thus forms a gap ventilation element on the sash side, the punched embossing 13 a gap ventilation element on the fitting arm side. A structural unit with the toothed plate 8 forms a guide part 28 with a guide groove running in the circumferential direction 5 of the fold.

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Associated with the sash-side fitting arm 7 is a fitting part in the form of a rotary-sliding guide 19, which is screwed to an upper horizontal frame rebate surface 17 with a fixed frame 18. This extends in the circumferential direction of the rebate 5 and is provided with a guide slot 20 running in this direction. At its right end in Figs. 3 to 5, the guide slot 20 merges into an end extension 21. In the view perpendicular to the main plane of the fixed frame 18 (Fig. 4), the rotary-sliding guide 19 is angled several times. Between fastening ends 22, 23, to which the rotary-sliding guide 19 is screwed to the fixed frame 18, the part of the rotary-sliding guide 19 provided with the guide slot 20 runs with a horizontal section 24 and an adjoining downwardly angled section 25. Starting from this, the rotary-sliding guide 19 then runs with an upwardly angled section 26 in which the end extension 21 is recessed. The upwardly angled section 26 of the rotary-sliding guide 19 is then followed by a further horizontal section 27, the underside of which is slightly higher than the top of the horizontal section 24. The rotary-sliding guide 19 supports the guide pin 14 and thus the fitting arm 7 in the rebate circumferential direction 5 and can rotate about an axis running perpendicular to the frame rebate surface 17.

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In a known manner, further faceplates and drive rods are connected to the faceplate rail 4 and the drive rod 6 according to Figures 1 and 2, which in turn are also provided with functional parts. Accordingly, in addition to the rotary sliding guide 19 shown in Figures 4 to 5, further fitting parts are provided on the fixed frame. This results in an overall fitting that makes it possible to transfer the sash 3 on the fixed frame 18 into a locking position, a rotary opening position, a tilt opening position and several gap ventilation or gap tilt positions. As usual, a manual operating handle on the opening-side vertical bar of the sash 3 is used to switch the drive rod fitting 1 into the corresponding switching positions. How the various switching positions of the drive rod fitting 1 or the various positions of the sash 3 affect the fitting parts shown in Figures 1 to 5 is explained in detail using Figures 6 to 13.

Figure 6 shows the situation when the sash 3 is locked or the drive rod fitting 1 is in the locking position. The fitting arm 7 extends in the rebate circumferential direction 5. The drive rod 6 positions the fitting arm 7 in the rebate circumferential direction 5 in such a way that it engages with the punched embossing 13 in the guide groove of the guide part 2 8 on the toothed plate 8. The fitting arm 7 is thus locked against rotation about its axis of rotation 11. Punched embossing 13

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and guide part 28 form locking elements in this respect. The guide pin 14 at the end of the fitting arm 7 remote from the rotation axis 11 is located below the rotating/sliding guide 19 on the fixed frame side and there between the horizontal section 27 and the fastening end 23. The manual operating handle for switching the drive rod fitting 1 is directed vertically downwards, as sketched in Figure 6. If a corresponding receptacle for the guide pin 14 were provided on the rotating/sliding guide 19, this could also be used as a locking pin for locking the sash 3 to the fixed frame 18. A particularly effective locking via the guide pin would result in this case if a further pin protruded in the sash-side extension of the guide pin 14 on the underside of the fitting arm 7 and engaged in a sash-side locking receptacle.

If the sash 3 locked as shown in Figure 6 is to be opened by turning, the manual handle must be turned 90° anti-clockwise from its position as shown in Figure 6. It is then aligned horizontally to the right, as shown in Figure 7. The described rotation of the manual handle is accompanied by a transfer of the drive rod fitting 1 into the ready-to-turn position. The drive rod moves in the rebate circumferential direction 5 and takes the fitting arm 7 with it. As can be seen in detail in Figure 7, the fitting arm 7 with the stamping 13 remains in the interior.

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ners of the guide groove of the guide part 28 on the toothing plate 8. The fitting arm 7 is therefore locked to the sash 3 against rotation about its sash-side axis of rotation 11 even when the drive rod fitting 1 is in the ready-to-rotate position. At the fixed-frame-side end of the fitting arm 7, the guide pin 14 is now located below the horizontal section 27 on the rotary-sliding guide 19. The rotary-sliding guide 19 thus releases the guide pin 14 for movement perpendicular to the main plane of the sash 3 or the fixed frame 18. Consequently, the sash 3 can be pivoted about its vertical axis of rotation and thus opened by rotation. The locking of the fitting arm 7 on the sash 3 ensures that the fitting arm 7 cannot pivot uncontrollably about its axis of rotation 11 when the sash 3 is opened and then assume rotational positions in which it would hinder closing of the opened sash 3.

If the sash 3 is to be tilted relative to the fixed frame 18, the manual operating handle must be moved anti-clockwise through an angle of 90° when the sash 3 is in the closed position, starting from the horizontal position as shown in Figure 7, and thus transferred to the position as shown in Figure 8, in which it points vertically upwards. This rotary movement of the manual operating handle is associated with a further displacement of the drive rod 6 in the rebate circumferential direction 5 and a corresponding displacement of the fitting arm 7 relative to the sash 3 and the fixed frame 18. The drive rod fitting 1

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now assumes the tilt-ready position shown in Figure 8. The fitting arm 7 still runs in the circumferential direction 5 of the rebate, but has left the guide groove of the guide part 28 on the toothing plate 8 with the punched impression 13. It has moved so far away from the toothing plate 8 that the tip of the punched impression 13 can pass the toothing 15 on the toothing plate 8 without collision when the fitting arm 7 rotates about its axis of rotation 11. The guide pin 14 on the fixed frame side end of the fitting arm 7 has entered the end extension 21 on the fixed frame side rotary-sliding guide 19 and is located there in the transition area to the downwardly angled section 25. If the sash 3 is now tilted about its tilt axis, the fitting arm 7 pivots about its axis of rotation 11; the guide pin 14 on the fitting arm 7 engaging in the fixed frame-side rotating-sliding guide 19 is moved in the longitudinal direction of the guide slot 20 on the rotating-sliding guide 19 until it hits the limit of the guide slot 20 towards the fastening end 22. The conditions shown in Figure 13 then arise. After the guide pin 14 on the fitting arm 7 is prevented from continuing its movement in the rebate circumferential direction 5 by the limit of the guide slot 20 on the rotating-sliding guide 19 and the sash-side end of the fitting arm 7 is fixed immovably to the sash 3 in the rebate circumferential direction 5 via the self-locking drive rod 6, the fitting arm 7 now acts as a tilt opening limiter.

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for the sash 3. If the fitting arm 7 is used in addition to a conventional opening scissor, it can support the latter in its opening-limiting function.

To transfer to a gap ventilation position, in this case a gap tilt position, the sash 3 is to be pivoted from its maximum tilt opening according to Figure 13 with the manual control handle still pointing vertically upwards in the direction of the fixed frame 18. This pivoting movement is associated with a rotational movement of the fitting arm 7 about its sash-side axis of rotation 11 and a displacement of the guide pin 14 on the fixed frame-side end of the fitting arm 7 inside the guide slot 20 on the fixed frame-side rotary-sliding guide 19. As soon as the fitting arm 7 comes to rest with the punched embossing 13 opposite the toothing 15 on the toothing plate 8 during its pivoting movement, the sash 3 can be locked in a gap ventilation position relative to the fixed frame 18. For this purpose, the manual control handle is to be rotated 45° clockwise from its vertically upward position (Figure 9). As a result, the drive rod 6 is displaced in the circumferential direction 9 of the rebate. The fitting arm 7, which is connected to the drive rod 6 via the rotation axis 11, consequently moves with the punched embossing 13 against the toothing plate 8 and finally engages with the tip of the punched embossing 13 in one of the engagements 16 (Figure 10). After the engagements 16 on the toothing plate 8 fixed to the sash have been moved along a circular arc

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which runs parallel to the circular arc which the tip of the punched embossing 13 describes when the fitting arm 7 pivots about its sash-side axis of rotation 11, the same switching path of the drive rod 6 and thus the same pivoting angle of the manual operating handle is always required to produce the positive connection between the punched embossing 13 on the fitting arm 7 and the toothing 15 on the toothing plate 8, regardless of which of the engagements 16 of the toothing 15 the punched embossing 13 is to be engaged in. As can be seen in particular from Figures II and 12, the width of the gap ventilation opening between the sash 3 and the fixed frame 18 can be varied within wide limits with the gap ventilation device shown.

Special design precautions must be taken in cases of this kind if the operator is to be protected against incorrect operation of the fitting. It must be ensured that the fitting cannot be switched to the ready-to-turn position when the sash is tilted open, or to the ready-to-tilt position when the sash is tilted open. At the same time, however, it must be possible to transfer the fitting to a split-tilt position when the sash is tilted open. The incorrect operation lock 9 meets these special requirements.

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According to Figure 15, the actuating unit 10 of the mishandling lock 9 comprises a wedge-shaped upper part 29 and a lower part 30. Both parts are movable relative to one another perpendicular to the sash rebate surface 2 and are supported against one another in this direction by means of a spring 31. A locking pin 32 is connected to the upper part 29 and can therefore be moved relative to the lower part 30. The locking pin 32 has a shaft with a relatively small diameter and an enlarged end. Fastening pins 33, 34 are provided on the lower part 30.

As can be seen from Figure 1, for example, the actuating unit 10 of the mishandling lock 9 is attached to the faceplate 4. The connection to the faceplate 4 is made via the fastening pins 33, 34 on the lower part 30 of the actuating unit 10. The locking pin 32 passes through the faceplate 4 and projects into a contoured cutout 35 on the drive rod 6 arranged below the faceplate 4 (Figure 14). The cutout 35 comprises a narrowed section 36, a short extension 37 adjoining it and a long extension 38 adjacent to it.

When the leaf 3 is in the closed position on the fixed frame 18, the upper part 29 of the operating unit 10 lies under the rotary-sliding guide 19 on the fixed frame side and is pushed against the lower part via its horizontal section 24 under pretension of the spring 31.

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the actuating unit 10. The contact between the actuating unit 10 and the rotary-sliding guide 19 is made possible by the bending of the fitting arm 7, which can be seen for example in Figure 1 and which runs around the actuating unit 10.

If the drive rod fitting 1 is in the locked position with the sash 3 closed (Figure 20), the locking pin 32 of the mishandling lock 9 penetrates with its shaft the narrowed section 36 of the cutout 35 on the drive rod 6. The extended end of the locking pin 32 is below the drive rod 6. If the drive rod fitting 1 is transferred to its ready-to-turn position with the sash 3 still closed (Figure 21), the locking pin 32 with its extended end reaches the level of the short extension 3 7 of the cutout 35. If the sash 3 is now opened by rotation, the upper part 2 9 lifts off the lower part 30 of the actuating unit 10 under the action of the spring 31, taking the locking pin 32 with it. This then reaches with its extended end into the interior of the short extension 37 of the cutout 35 on the drive rod 6. The locking pin 32 now blocks a displacement of the drive rod 6 and thus a change in the switching position of the drive rod fitting 1. In particular, it is not possible to transfer the drive rod fitting 1 into the tilt-ready position by turning the manual operating handle.

When the sash 3 is closed and the drive rod fitting 1 is in the tilt-ready position (Figure 22), the locking pin 32 of the mishandling lock 9 is located with its extended end below the long extension 3 8 of the cutout 35 on the drive rod 6. If the sash 3 is now tilted open, the upper part 2 9 lifts off the lower part 30 of the actuating unit 10 again, and the extended end of the locking pin 32 comes to rest inside the long extension 38 on the drive rod 6. Due to the excess of the long extension 38 in the direction of movement of the drive rod 6 compared to the extended end of the locking pin 32, the drive rod 6 can nevertheless be moved in the circumferential direction 5 of the rebate. This makes it possible to bring the fitting arm 7 on the stamping 13 into engagement with the toothing 15 on the toothing plate 8 fixed to the sash and thus to lock the sash 3 in a gap ventilation position. Further displacement of the drive rod 6 when the sash 3 is in the gap ventilation position is prevented on the one hand by the fact that the fitting arm 7 and the toothing plate 8 support each other and thereby block the drive rod 6 against displacement in the direction of the ready-to-turn position. A corresponding blocking of the drive rod 6 results from the engagement of the extended end of the locking pin 32 in the long extension 38 on the drive rod 6 and due to the excess of the extended end of the locking pin 32 compared to the connection between the

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long extension 38 and the short extension 37 of the cutout 35.

An upper part 29a, such as can be used in the case of the actuating unit 10 instead of the upper part 29 according to Figure 15, is shown in Figures 16 and 17. The upper part 29a can be locked to locking receptacles 39, 40, 41 with adapter caps to adapt to changing rebate widths between the sash 3 and the fixed frame 18. An adapter cap 42 with locking arms 43, 44, 45, 46 is shown as an example in Figures 18 and 19.

Claims (12)

1. Gap ventilation device on a fixed frame ( 18 ) and a sash ( 3 ) of a window, a door or the like that can be closed relative to it, comprising a sash-side gap ventilation element ( 8 ) provided on the sash ( 3 ) and a fitting arm-side gap ventilation element ( 13 ) associated therewith and provided on a fitting arm ( 7 ), wherein the fitting arm ( 7 ) is arranged in a rebate between the sash ( 3 ) and the fixed frame ( 18 ) and is rotatably mounted on the sash ( 3 ) about a sash-side axis of rotation ( 11 ) that runs perpendicular to the sash rebate surface ( 2 ), and wherein one ( 13 ) of the gap ventilation elements ( 8 , 13 ) is coupled to a drive rod ( 6 ) of a drive rod fitting ( 1 ) that is guided on the sash ( 3 ) in the rebate circumferential direction ( 5 ) relative to the other gap ventilation element ( 8 ) is movable and the two gap ventilation elements ( 8 , 13 ) can be brought into engagement with one another by such relative movement while fixing the sash ( 3 ) in at least one gap ventilation position and can be separated from one another while releasing the sash ( 3 ) in a gap ventilation position, characterized in that the fitting arm ( 7 ) is mounted on the fixed frame ( 18 ) by means of a rotary-sliding guide ( 19 ) so as to be rotatable about an axis running perpendicular to the frame rebate surface ( 17 ) and displaceable in the rebate circumferential direction ( 5 ) and that the fitting arm ( 7 ) and via this the gap ventilation element ( 13 ) on the fitting arm side on the sash ( 3 ) are coupled to the drive rod ( 6 ) and the gap ventilation element ( 13 ) on the fitting arm side is moved by means of the drive rod ( 6 ) relative to the relative to the sash ( 3 ) stationary sash-side gap ventilation element ( 8 ) is movable and can be brought into engagement with or separated from it. 2. Gap ventilation device according to claim 1, characterized in that at least one ( 8 ) of the gap ventilation elements ( 8 , 13 ) has a plurality of engagements ( 16 ) for the other gap ventilation element ( 13 ) which follow one another in the setting-down direction of the wing ( 3 ). 3. Gap ventilation device according to one of the preceding claims, characterized in that at least one gap ventilation element ( 8 ) is plate-shaped. 4. Gap ventilation device according to one of the preceding claims, characterized in that the gap ventilation element ( 13 ) on the fitting arm side is formed by a stamping of the fitting arm ( 7 ). 5. Gap ventilation device according to one of the preceding claims, characterized in that the sash ( 7 ) can be set into a gap tilt position relative to the fixed frame ( 18 ) about a tilt axis and that a sash-side and a fitting arm-side gap tilt element are provided as gap ventilation elements ( 8 , 13 ) and the fitting arm ( 7 ) is arranged in the fold between the sash ( 3 ) and the fixed frame ( 18 ) opposite the tilt axis of the sash ( 3 ). 6. Gap ventilation device according to one of the preceding claims, characterized in that the sash ( 3 ) is mounted on the fixed frame ( 18 ) so as to be rotatable about an axis of rotation and the drive rod fitting ( 1 ) can be switched into a position ready for rotation, wherein the fitting arm ( 7 ) runs in the circumferential direction ( 5 ) of the fold (5) on the relevant sash rebate surface ( 2 ) when the drive rod fitting ( 1 ) is in the position ready for rotation and is moved by means of the drive rod ( 6 ) in the circumferential direction ( 5 ) of the fold into a position, when assuming which a guide element ( 14 ) provided on the fitting arm ( 7 ) on the fixed frame side and associated with the rotary-sliding guide ( 19 ) on the fixed frame side is released by the rotary-sliding guide ( 19 ) in its direction of movement associated with a rotary movement of the sash ( 3 ). 7. Gap ventilation device according to one of the preceding claims, characterized in that the fitting arm ( 7 ) in its position assigned to the locking position and/or in its position assigned to the rotational readiness position of the drive rod fitting ( 1 ) on the wing ( 3 ) is locked against rotation about its wing-side axis of rotation ( 11 ) via a drive rod-side locking element ( 13 ) which is movable in a manner coupled to the drive rod ( 6 ) on the wing ( 3 ) via a wing-side locking element ( 28 ). 8. Gap ventilation device according to one of the preceding claims, characterized in that the locking element on the drive rod side for locking the fitting arm ( 7 ) in its position assigned to the locking position of the drive rod fitting ( 1 ) and/or the locking element on the drive rod side for locking the fitting arm ( 7 ) in its position assigned to the ready-to-rotate position of the drive rod fitting ( 1 ) is structurally designed as a unit with the gap ventilation element on the fitting arm side and/or that the corresponding locking element on the sash side ( 28 ) is structurally designed as a unit with the gap ventilation element on the sash side ( 8 ). 9. Gap ventilation device according to one of the preceding claims, characterized in that the fitting arm-side gap ventilation element ( 13 ) is provided as a drive rod-side locking element for locking the fitting arm (7) in its position associated with the locking position of the drive rod fitting ( 1 ) and/or as a drive rod-side locking element for locking the fitting arm ( 7 ) in its position associated with the ready-to-rotate position of the drive rod fitting ( 1 ). 10. Gap ventilation device according to one of the preceding claims, characterized in that the wing ( 3 ) is mounted on the fixed frame ( 18 ) so as to be tiltable about a tilt axis and can be moved into a tilted position relative to the fixed frame ( 18 ) and that the wing ( 3 ) is supported on the fixed frame ( 18 ) in the tilt opening direction via the fitting arm ( 7 ) when assuming the tilted position. 11. Gap ventilation device according to one of the preceding claims, characterized in that an incorrect operation lock ( 9 ) acting on the drive rod fitting ( 1 ) is provided, which, when the drive rod fitting ( 1 ) is in the gap ventilation position, releases the drive rod ( 6 ) to transfer the drive rod fitting ( 1 ) into a tilt-ready position and which, when the drive rod fitting (1) is in the tilt-ready position or when the drive rod fitting ( 1 ) is in the rotation-ready position, locks the drive rod ( 6 ) against transferring the drive rod fitting ( 1 ) into the rotation-ready position or into the tilt-ready position. 12. Window, door or the like, comprising a fixed frame ( 18 ), a sash ( 3 ) which can be opened relative to the frame (18), and a gap ventilation device according to one of the preceding claims provided on the fixed frame ( 18 ) and the sash ( 3 ).