DE19846048A1 - Night ventilation device - Google Patents

Abstract

The invention relates to a device for providing gap ventilation, for a window, a door or the like. Said device comprises a frame (1) and a leaf (2) as well as a drive rod fitting (6). Said drive rod fitting can be displaced between a closing position, an opening position and a gap opening position in which the leaf (2) can be opened to a gap ventilation position. The inventive device additionally comprises a movable gap opening arm (24) which is pivotally connected to the drive rod fitting (6). A displacement of the drive rod fitting (6) from the closing position to the opening position effects the displacement of the gap opening arm (24) along a trajectory. As a result, the gap opening arm (24) butts against a stop which ensures blockage in the direction of displacement. The gap ventilation device is also characterized in that a pivoting motion of the gap opening arm (24) is effected by further displacing the drive rod fitting (6) and thus the coupling element (25) from the opening position into the gap opening position, interacting with the stop. The gap opening arm (24) thereby opens the leaf (2) to a gap ventilation position.

Description

The invention relates to a night ventilation device according to the preamble of Claim 1.

Night ventilation devices are used to set a ventilation position of a window or a door. The wing of the window or door should be more or less large gap opened and held in the set position.

From DE 82 18 084 U1 a night ventilation device has become known, in which a Bolt member of the espagnolette fitting with the V-shaped end of a Gap opening arm cooperates so that the pivoting and sliding on one Base plate articulated gap opening arm when reaching the so-called Night ventilation position of the espagnolette fitting the unlocked wing on the Bolt member holds. The gap opening arm pivots perpendicular to the folding plane and causes - supported by a corresponding spring loading of the gap opening arm - that the wing is set apart from the frame. The movement of the Limiting lever is limited by a side stop.

DE 37 19 040 C2 sees a further development of DE 82 18 084 U1 Night ventilation device with increased holding force and larger night ventilation opening. This is essentially achieved in that the compression spring by an in-plane the articulation point of the gap opening arm is replaced tension spring, and that the Stop spaced to limit the opening movement of the gap opening arm is arranged. The stop plunges into a side-open recess of the  the locking member moved longitudinally - limiting arm so that it continues can be pivoted.

A disadvantage of the night ventilation devices of the aforementioned type is that the Arrangements are designed very complex and still a reliable hold of the Wing in the spring-loaded V-shaped recess of the gap opening arm is not is guaranteed. At the same time, a large installation space for the assembly of the Night ventilation device needed, especially across the depth of the fold area to the sash and frame level is not always the case.

Other night ventilation devices, such as those from DE 80 15 677 U1. Known, are based on the interaction of a frame-fixed stop part against the one Locking pin of the espagnolette fitting starts up after unlocking the sash to ensure that the sash is forced away from the frame. It engages behind Locking pin a closing edge of this known gap ventilation device and prevents the wing from opening.

A disadvantage of these designs, in addition to the complicated operation, is only relative small opening width, which only allows inadequate ventilation of the room.

An opening limiter for windows has become known from DE 38 20 755 A1 which a locking pin of the espagnolette fitting with a limiting arm interacts, which is pivotable and in the direction of movement of the locking pin is slidably held on a base plate. The limiting arm has its in Opening direction front long side on a recess in which the The locking pin rests between the closed position. In the open position is the Firing pin a recess distant from the articulation point of the limiting arm assigned a positive extension of the limiting arm. In this position the sash can be swiveled, but is now opened by the opening limiter limited its maximum pivot opening position.

The invention has set itself the task, starting from DE 38 20 755 A1 to create an opening limiter that has a large opening width of the wing allows for simple operation of the espagnolette fitting.

The object is achieved according to the invention by the in the characterizing part of Features specified claim 1 solved. There will be an assignment of the  The gap opening arm to the connecting rod fitting causes a forced passage through the Actuation of the drive rod fitting controlled, opening movement of the wing allows, which is dimensioned much larger than, for example, by only locking members movable in the longitudinal direction would be possible. Only a few will Components needed that are concealed in a simple manner for the user in the fold area of the wing and or of the frame can be arranged.

It can be arranged via the arrangement of the wing of the window or door first transfer to a rotary opening position and from this - by switching of the espagnolette fitting - set the desired gap opening position.

In a further embodiment, the invention provides that the effective length of the The gap opening arm is dimensioned about half as large as the entire stroke length of the Espagnolette fitting between the closing and opening positions A, C. This will causes the opening movement of the Limiting arm only after overcoming about half the stroke length of the Espagnolette fitting begins, i.e. after the rotary opening position has been reached. So that is on the one hand ensures that all locking points of the drive rod fitting were unlocked and on the other hand, the rotational opening position of the wing is ensured. The rotary opening position, for example, is usually for cleaning the glass filling of the sash indispensable.

Another embodiment of the night ventilation device provides that the Gap opening arm as a limit arm on the espagnolette fitting insoluble and is pivotally arranged, its end being a coupling point for connection with has the fixed stop. In this embodiment, the Limiting part of the drive rod fitting, so that an assignment of the Limiting arm to the connecting rod fitting is given in any case. The Limiting arm is moved and works together with the connecting rod fitting after overcoming the distance of the guide slot with the fixed stop together. This also makes it easy to install the night ventilation device on Wing guaranteed, since this is in one piece with a corresponding component of the Espagnolette fitting is provided.

A particularly preferred embodiment provides that the stop one Has pivot forming backdrop, the outer contour of a segment of a circle forms and the limiting arm approximately at its free end  semicircular hook that forms - acting as a sliding block - with the backdrop cooperates. The limitation arm is which represents a partial stroke of the connecting rod fitting, with the semicircular hook introduced into the backdrop and the limiting arm - due to the shape of the semicircular hook and the backdrop - forcibly pivoted around the free end.

In order to secure the wing relative to the frame, it is also provided that the Forms an undercut area that the limiting arm in the Grips open position. With this configuration, the limiting arm can also its semicircular hook can be pushed past the half cylinder and engages after the forced pivoting around the trained by the backdrop Pivotal point behind this half cylinder and prevented by the positive connection an unwanted opening or other movement of the wing.

Another embodiment of the night ventilation device provides that the coupling point the limiting arm as a positive connection with a locking pin Espagnolette fitting cooperates. As a result, commercially available and Fitting parts already in use together with the night ventilation device be used.

Further advantageous configurations result from the further subclaims and the drawings. Show it:

Fig. 1 shows a window with a positioning-bar fitting from the room side,

Fig. 2 shows a spatial representation of the lower front corner region of the frame and the wing,

Fig. 3 shows the fold region of a frame having attached thereto gap ventilation device in a three-dimensional representation,

FIGS. 4a to 4d, a first embodiment of the gap ventilation device into different switch positions of the espagnolette fitting and in a side view;

Fig. 5 shows another embodiment of the gap ventilation device in a lateral and a plan view,

FIG. 6a to 6d a further embodiment, the gap ventilation device in three switching positions and a side view,

Fig. 7, a frame member for the gap ventilation device from Fig. 6,

FIGS. 8a-8c a last embodiment of the Öffnungsbegrenzers in the three switching positions and a side view, and

Figs. 9a to 9c, a safety device for the wing with a gap ventilation device.

The window shown in FIG. 1 and provided with a night ventilation device consists of a frame 1 to which a wing 2 is articulated, which can be opened in rotation about a vertical axis 3 . A connecting rod fitting 6 is arranged in a groove in the rebate surface of the wing 2 in a manner known per se, which can be adjusted into three different switching positions by actuating the operating handle 7 . In the first switching position - the closed position A - the wing 2 is locked to the frame 1 by means of locking members or locking pins arranged on the connecting rod fitting 6 . In the second switching position - the rotary opening position B - the wing 2 can be opened in a rotary position and in the third switching position - gap opening position C - gap opening can be opened into a gap ventilation position. The switching positions A, B, C are each set, for example, by turning the operating handle 7 by 90 °.

As can be seen in FIG. 2, the drive rod fitting 6 is essentially formed from a faceplate or a cover bracket 10 and a drive rod 11 which is guided longitudinally displaceably underneath. The faceplate or the cover bracket 10 cover the drive rod 11 lying in the groove 12 of the rebate surface 13 . In the exemplary embodiment shown, a connecting rod component is shown in the form of a corner deflection 14 . On the lower horizontal leg 15 of the corner drive 14 , a locking pin 16 with a cylindrical shape can be moved back and forth by the drive rod 11 in the longitudinal direction of the drive rod fitting 6 . The locking pin 16 passes through, the elongate recess 17 in the cover angle or the cover rail 10th

The night ventilation device 21 visible in FIG. 3 is arranged in the lower horizontal frame leg 20 of the window. The gap ventilation device 21 is fastened on a rabbet surface 22 of the frame 1 and has a limiting arm 24 protruding in front of the frame visible surface 23 .

As is clear from FIG. 2, the limiting arm 24 can be pivotally connected to the locking pin 16 via a coupling point 25 . The limiting arm 24 is, as shown in particular in FIGS. 4a to 4c, together with the locking pin 16 arranged on the connecting rod fitting 6 from the closed position A according to FIG. 4a, into the rotary opening position B ( FIG. 4b) and into the gap opening position C ( FIG to transfer. 4c). The locking pin 16 indicated here travels a stroke length Y. In the closed position A, the limiting arm 24 is retracted into the position shown in FIG. 4a by the positive connection of the coupling point 25 and the locking pin 16 . In this position, the guide and holding pins 26 , 27 fixedly arranged on the limiting arm 24 have come near the end of the guide slots 28 , 29 . As is clear from FIG. 4a, the guide slot 29 is designed as a straight longitudinal slot which is provided with a step depression 30 on its underside. The guide slot 28 , on the other hand, has an arcuate section 31 , the center point 32 of which coincides with the center point of the pin 26 , which it occupies in the rotational opening position B. The guide slot 28 is also provided on the back of the base plate 33 with a step 34 .

The step countersinks 30 , 34 serve, as the section along the line IVd using the example of the guide pin 27 , for receiving the head 35 of the guide pin 27 . As is also clear from FIG. 4d, a disk 36 is provided coaxially to the guide pin 27 between the base plate 33 and the limiting arm 24 , which space separates the limiting arm 24 from the base plate 33 .

With a displacement of the locking pin 16 from that shown in Fig. 4a closed position shown A in the rotary opening position B (Fig. 4b) of the limiting arm is displaced by the distance X 24. Here, the guide pin 26 , as shown in FIG. 4a, is also displaced by the distance X in the guide slot 29 . In the rotation opening position B of the wings 2 can be pivoted about the vertical axis 3 without further wherein the lock pin is disengaged from the coupling point 25 16th

When the wing 2 closes from the rotational opening position B, the locking pin 16 again arrives at the coupling point 25 via the funnel-like guide surfaces 40 . Any necessary displacement along the longitudinal center lines 41 , 42 of the night ventilation device 21 and the connecting rod fitting 6 are compensated for by play in the form of a small tolerance distance in the guide slots 28 , 29 .

The limiter arm 24 is prevented from rotating in the opening position B of the espagnolette fitting 6 against a rotational movement around the guide pin 26 by the guide pin 27th In order to be able to carry out this rotary movement, as shown in FIG. 4c, the locking pin 16 must also be displaced from the rotary opening position B of the dome bar fitting 6 into the gap opening position C. If the locking pin 16 is moved further over the distance X, the guide pin 26 comes against the end of the guide slot 29 which acts as a stop 43 , the limiting arm 24 being guided in a circular path around the guide pin 26 due to the further displacement of the locking pin 16 . The limiting arm 24 is therefore forcibly pivoted about the guide pin 26 , the guide pin 27 being guided in the section 31 . In order to facilitate the rotary movement of the limiting arm 24 , the stop 43 is offset parallel to the direction of movement of the locking pin 16 . As a result, when the stop 43 is reached, a moment acts on the limiting arm 24 , which allows a simple pivoting movement without frictional engagement at the stop.

The stop 43 acts as locking only in the direction of displacement of the limiting arm 24 ; a rotary movement of the limiting arm 24 is possible, the stop 43 forming a pivot bearing.

Therefore, in Fig. 4c, the longitudinal centerline 41 of the limiter arm 24 and the longitudinal central axis 42 spaced from the drive rod fitting 6 to the effective length L of the Begrenzungsarms 24. The limiting arm 24 is rotated approximately 90 ° from its starting position, almost perpendicular to the connecting rod fitting. This alignment prevents any forces acting on the wing 2 from leading to a displacement of the locking pin 16 and thus of the entire drive rod fitting 6 . The effective length L of the limiting arm 24 is dimensioned approximately half as large as the entire stroke length 4 of the drive rod fitting 6 . On the one hand, this allows the above-mentioned 90 ° position of the limiting arm 24 in the gap opening position C, but also enables the rotary opening position B to be set from the closed position A.

To secure the locking pin 16 in the gap opening position C, the coupling point 25 is provided with a circular ring section 45 which can be pivoted about the central axis 44 of the coupling point 25 . As can be seen from FIG. 4b, the circular ring section 45 is arranged such that it can pivot relative to the limiting arm 24 . For this purpose, guide pins 46 attached to the underside of the circular ring section 45 engage in corresponding links 47 . The circular ring section 45 is rotationally inhibited with respect to the locking pin 16 , which can be achieved, for example, by a holding mandrel 48 attached to the inside of the circular ring section 45 . When pivoting the limiting arm 24 from the position shown in FIG. 4b, in which the longitudinal center lines 41 , 42 of the opening limiter 21 and the connecting rod fitting 6 run parallel, into the gap opening position C shown in FIG. 4c, in which the longitudinal center line of the connecting rod fitting and the limiting arm Stand almost perpendicular to each other, the circular ring section 45 closes the opening 49 of the coupling point 25 . As a result, the locking pin 16 is encompassed in a form-fitting manner until the connecting rod fitting 6 is returned from the gap opening position C to the rotary opening position B.

It is essential in the embodiment according to FIGS. 4a to 4d that the limiting arm 24 can be carried along by the drive rod fitting 6 along the entire stroke length Y of the driving rod fitting 6 , and that the longitudinal center line 41 of the limiting arm 24 and the longitudinal center line 42 of the connecting rod fitting 6 in have shown parallel alignment position Fig. 4a and 4b.

The longitudinal center line 41 denotes less the geometric longitudinal center than the one on which both the coupling point 25 and the pivot bearing of the limiting arm 24 lie.

In the exemplary embodiment shown in FIG. 5, the limiting arm 24 is guided in a longitudinally displaceable manner by a laterally flattened guide rivet 60 in the guide slot 29 . The guide slot 29 is designed like a keyhole and in the area of the cylindrical bore 61 , which is followed by the elongated hole section 62 which is matched to the width of the guide rivet 60 , is dimensioned such that the guide rivet 60 can be pivoted in the bore 61 . The limiter arm 24 is rotatably connected to the guide rivet 60 so that the limiter arm 24 is mounted in the closed position in Fig 5 A shown in a rotationally fixed. At the base plate 34. After covering the distance X in which the longitudinal center lines 41 and 42 of the limiting arm 24 and the connecting rod fitting 6 run parallel, the guide rivet 60 abuts the edge of the bore 61 which acts as a stop. If the locking pin 16, not shown here, is moved further from the rotary opening position B, as practice has shown, a slight pressure, for example generated by the seal between the frame 1 and the wing 2 , on the wing 2 around the longitudinal center lines 41 , 42 of the limiting arm 24 and Spacing the connecting rod fitting 6 or pivoting them relative to one another such that the torque applied via the locking pin 16 causes the limiting arm 24 to rotate.

Of course, this can however also be achieved by additional measures, for example. By the abutment of a limiter arm 24 attached to the spring element 64 against a stop 65 on the base plate 34 so that the limiter arm 24 is slightly away.

The spring element 64 can, as shown in FIG. 5, be formed in one piece with the limiting arm 24 by cutting it. The stop 65 is to be arranged so that the spring element 64 hits it before the guide rivet 60 fully inserts in the bore 61 . The spring element 64 is loaded when the limiting arm 24 is pivoted in from the gap opening position C and causes the coupling point 25 to lean against the locking pin 16 . The opening 49 of the coupling point 25 can be provided by the circular ring section 45 known from FIG. 4c for the positive connection with the locking pin 16 .

In the exemplary embodiment according to FIGS. 6a to 6d, the limiting arm 24 is pivotably articulated on the drive rod 11 of the drive rod fitting 6 via a pin 70 . For a better overview, the illustration of the connecting rod fitting 6 has been omitted in FIGS. 6a and 6b. If the connecting rod fitting is transferred from the closed position shown in FIG. 6a to the rotary opening position B shown in FIG. 6b, the longitudinal center lines 41 of the limiting arm 24 and the longitudinal center line 42 of the connecting rod fitting 6 are congruent. The limiting arm 24 forms at its free end 71 an approximately semicircular hook 72 which is closed in the direction R towards the interior of the room. The frame 1 - not shown here - is assigned a frame part 73 which has a stop 74 for the limiting arm 24 . The stop 74 forms a backdrop 75 with a shape complementary to the semicircular hook 72 , so that its outer contour 76 forms a segment of a circle transverse to the direction of displacement of the limiting arm 24 . After the distance X has been overcome, the semicircular hook 72 reaches the area of the backdrop 75 . If the connecting rod fitting 6 is moved further from the switch position shown in FIG. 6b in the direction of the gap opening position C according to FIG. 6c, the semi-circular hook 72 acting as a sliding block follows the sliding block 75 , which forms a pivot point 77 for the limiting arm 24 . The longitudinal central axis 41 of the limiting arm 24 is rotated relative to the longitudinal central axis 42 of the connecting rod fitting 6 until they assume the rectangular position shown in FIG. 6c in the gap ventilation position with respect to one another. The limiting arm 24 with the semicircular hook 72 encompasses an approximately quarter-circular section 78 of the B-shaped web 79 , which forms the inner contour in the region of the semicircular link 75 . The web 79 forms at its end the quarter cylinder 78 , the flat surface 80 of which runs parallel to the direction of displacement of the connecting rod fitting 6 and at right angles to the direction R, so that the semicircular hook 72 can pass through the web 79 when the different switching positions are set. The web 79 , as the inner contour of the link 75, forms an undercut area 81 through the section 78 , which the limiting arm 24 engages behind with the hook 72 in the open position C. The link 75 therefore not only forms the fulcrum 77 for the limiting arm 24 , but also serves as a positive connection of the limiting arm 24 with the frame part 73 and is effective as a stop 74 .

When the connecting rod fitting 6 is reset from the gap opening position C, the sash 2 is forcibly returned to the frame 1 . To each defined position of the Begrenzungsarms ensure 24, can be connected to the pin 70 about a device to be provided also that 24 at least resets the limiting arm in the rotary opening position B in the illustrated in FIG. Parallel alignment position 6b of the longitudinal center lines 41, 42. This can be done, for example, by an energy storage device in the form of a spring, which is arranged on the pin 70 and engages the limiter arm 24 with a leg or the like.

As can be seen in particular from FIG. 6d, the limiting arm 24 is produced from a flat metal strip or the like and is fastened on a collar 82 of the pin 70 . As a result, the limiting arm 24 is spaced from the faceplate or the cover bracket 10 and forms a mushroom head. The limiting arm 24 thus engages behind an undercut 83 of the frame part 73 in the closed position , as can be seen from FIG. 6a. A radius 85 on the limiting rod 24, coaxial with the pivot axis 84 on the connecting rod fitting, lies in a complementary pocket 86 of the frame part 73 . In the gap opening position B, a roof 87 covers the backdrop 75 , so that on the one hand the penetration of dirt or the like is prevented, but on the other hand a prying out of the limiting arm 24 from the backdrop 75 is prevented. The pocket 86 , like the backdrop 75, is dimensioned larger in height 88 than the limiting arm 24 in order to be able to compensate for any changes in the relative position of the wing 2 relative to the frame 1 .

If the wing 2 settles, for example due to wear on the hinge parts forming the vertical axis 3 , the limiting arm 24 is displaced downward within the pocket 86 in the drawing. In order to make a relative alignment of the frame 1 and the wing 2 , a ramp surface 89 is therefore provided on the frame part 73 , which cooperates with a ramp 90 arranged on the connecting rod fitting 6 and thus additionally ensures the necessary distance of the connecting rod fitting 6 from the frame part 73 . The run-up surface 89 is inclined in a manner known per se as a wedge surface against the opening direction of the wing. The casserole 90 , as shown in FIG. 6d, is provided as an additional component in the form of a disk coaxial with a fastening bore 91 of the drive rod fitting.

In FIG. 7, the frame part is shown in a plan view 73rd In connection with Fig. 6d it is clear that the width 92 of the locking engagement 93 is matched to the collar 82 of the pin. The collar 82 is eccentric to the axis of the pin 70 , so that the pressure behavior of the collar 82 for the closing engagement 93 can be adjusted via a hexagon collar 94 . The frame part 73 is designed as a molded part and can be produced from metal by die casting or the like.

Finally, it should also be pointed out that the link 75 can taper towards the end, that is to say in the opening region of the semicircular hook 72, it has a width 95 which is larger than the width 96 which occurs in the rear region of the link 75 . This is intended to ensure easy insertion of the limiting arm 24 into the link 75 , while in the gap opening position C the limiting arm 73 is to be accommodated in the link 75 closely and without play. The range of motion of the wing 2 in the gap opening position C is restricted and undesired movements of the wing 2 , which can lead to the "rattling" of the wing 2 , are prevented.

In the exemplary embodiment of the opening limiter 21 shown in FIGS. 8a to 8d, the limiting arm 24 is pivotably articulated on the drive rod 11 via the coupling point 25 in the form of a connecting rivet 100 . The limiting arm 24 is thereby carried along the entire stroke length Y with the drive rod. Here, the limiter arm 24 is shifted from that shown in Fig. 8a closed position shown A first in the rotation opening position shown in Fig. 8b B. In this case, the end of the limiting arm 24 opposite the coupling point 25 comes into the region of an elongated hole 101 of a stationary frame part 102 which has a lateral opening 103 . The limiting arm 24 engages in the elongated hole 101 with a pin 104 with a square or rectangular cross section, which is shown invisibly in FIG. 8c. The cross section of the pin 104 is designed so that it almost corresponds to the width of the elongated hole 101 . The opening 103 is provided with funnel-like guide surfaces 105 which are intended to facilitate insertion of the pin 104 from the rotational opening position B back into the elongated hole 101 . When the sash 2 is open for rotation, the connecting rod fitting 6 is pivoted together with the limiting arm 24 out of the folding surface shown in FIG. 3, so that when the pivot 104 is pivoted in again, it must be inserted into the elongated hole 101 again.

On the limiting arm 24 , a link 106 is rotatably attached via a rivet 107 , so that the articulation point 108 is adjacent to the longitudinal center line 41 of the limiting arm 24 . The end of the link 106 opposite the articulation point 108 can be displaced longitudinally in a slot 109 via a guide rivet 110 in the direction of the drive rod 11 . After overcoming the distance X from the closed position A, the guide rivet 110 abuts the end 111 of the slot 109 acting as a stop, so that the link 106 - acting as a toggle lever - triggers a pivoting movement of the limiting arm 24 . In order to prevent frictional engagement in other exemplary embodiments of the link 106 and the limiting arm 24 , in which the coupling point and guide rivet 110 lying on a common longitudinal center line 42 can not generate a moment for the rotary movement of the limiting arm 24 , the articulation point 108 is counter to the opening direction of the wing 2 arranged next to the longitudinal center line 41 of the limiting arm 24 . This causes a torque on the limiting arm 24 at the beginning of the movement, which leads to a rotation about the coupling point 25 .

In order not to impede the pivoting movement of the limiting arm 24 in the elongated hole 101 , a keyhole-like extension 112 is provided in the end region of the elongated hole 101 , to which the pin 104 is assigned in the switching position C, which permits a rotary movement of the square cross section of the pin 104 . In the rotated position of the square cross section of the pin 104 , it cannot be transferred back into the narrow region of the elongated hole 101 .

In FIG. 8d, the spatial arrangement of the irrelevant in Fig. 8c clearly the actual spatial arrangement as shown visible components of the Öffnungsbegrenzers 21st The frame part 102 assigned to the fixed frame 1 consists of an approximately U-shaped sheet metal part, which in the area of the elongated hole 101 has a bent portion 115 pointing in the direction of the connecting rod fitting 6 . This creates a free space behind the frame part 102 , which offers the head 116 of the pin 104 sufficient space so that it does not drag on the fold surface 22 of the frame. The limiter arm 24 has a bend 10 directed away from the faceplate 117 to the arranged underneath arm 106 between limit arm 24 and to arrange faceplate 10th The link 106, on the other hand, is designed as a flat sheet metal section and only has the bores necessary for receiving the rivet 107 or the guide rivet 110 .

In addition, it should be noted that the distance X is dimensioned slightly larger than the stroke length between the closed position A and the rotary opening position B. Zur Avoiding unnecessary constraints and as tolerance compensation is a tolerance route T is provided, which ensures an adjustment of the rotary opening position B.

In addition, it should also be pointed out that in the last-mentioned exemplary embodiment the articulation point 108 is also laterally offset with respect to the longitudinal center line 113 of the link 106 in order to be able to ensure a parallel position of the link 106 to the connecting rod fitting 6 in the closed position A.

Figs. 9a and 9b show a securing device 150 for a gap ventilation device 21. The securing device 150 consists of a frame part 151 assigned to the rebate surface 22 of the frame 1 , on which a securing arm 152 is pivotably articulated via a pin 153 . Furthermore, the securing device 150 has a locking member 154 which is longitudinally displaceable with the drive rod 11 of the drive rod fitting 6 and which is formed from an approximately Z-shaped sheet metal part 155 . The free end of the sheet metal part 155, which is spaced apart from the faceplate or the cover bracket 10, forms a fork-shaped locking engagement 156 , while the opposite end of the sheet metal part 155 is guided in a longitudinally displaceable manner by a pin 157 on the faceplate or the cover bracket 10 . For this purpose, the cover bracket or the faceplate 10 has an elongated hole 158 , into which a section 159 of the leg 160 of the sheet metal part 155 assigned to the cover bracket or the faceplate 10 is immersed. The pin 157 is extended in the direction of the frame 1 and is assigned as a mushroom pin 161 in the closed position A to a locking engagement 162 arranged on the frame part 151 .

The securing arm 152 is also bent and has an S-shape. A further pin 166 provided with a mushroom head is provided on the leg 165 bent off to the frame part 151 . The securing arm 152 is aligned via a spring 167 in a position in which the longitudinal central axis 168 is aligned with the longitudinal central axis 169 of the frame part 151 . If the espagnolette fitting 6 is moved to the gap opening position C, the wing 2 and thus also the longitudinal central axis 42 of the espagnolette fitting 6 is forcibly separated from one another by the gap ventilation device 21 . Fig. 9c shows a schematic representation that the sheet metal part 155 - due to the section 159 locked against rotation - on the drive rod fitting 6, not shown here, maintains its original orientation. The securing arm 152 , on the other hand, is pivoted by the gap opening movement, the gap ventilation device 21 and the gripping of the pin 166 by the fork-shaped section 156 about the axis defined by the pin 153 . The effective length 170 of the securing arm 152 corresponds approximately to the length of the limiting arm 24 , but is preferably of somewhat longer design.

The securing device 150 acts predominantly passively, since the wing 2 is forcibly shut off via the night ventilation device 21 . By means of the securing device 150 , the wing 2 can be additionally secured in the gap ventilation position on the frame spar opposite the gap ventilation device 21 , whereby it is of course expedient that the gap ventilation device 21 is not only arranged on the opposite frame spar, but also approximately the same distance from the corner region of the Frame 1 has like the night ventilation device 21 . The securing arm 152 prevents the wing 2 from being pressed inwards by wind forces or impermissible handling. The configuration of the pin 166 as a mushroom head pin reliably prevents the securing arm 152 from being levered out of the latch engagement 156 . Due to the bolt engagement 162 , which interacts with the mushroom head pin 161 in the closed position A, the security of the entire window is increased.

Finally, it should be pointed out that the arrangement of such a night ventilation device 21 is preferably carried out in an area 175 ( FIG. 1). If the night ventilation device 21 is arranged in this area, the securing device 150 can be arranged on the opposite horizontal frame spar. The closer the gap ventilation device 21 is arranged from the corner region of the frame 1 or wing 2 remote from the axis 3 to the center of the wing, the more the wing 2 is opened by the gap ventilation device 21 . However, this also changes the balance of power, so that the operation of the drive rod fitting 6 is difficult. The gap ventilation device 21 can of course also take place on the vertical frame or wing leg opposite the axis 3 . The securing device 151 can be provided on a horizontal frame leg, the securing arm 152 naturally extending less than the limiting arm 24 due to the smaller distance from the axis 3 .

The illustrated exemplary embodiments are based on a wing 2 which can be pivoted about a vertical axis 3 . As a result, the wing 2 is designed as a pure rotating wing. Of course, it can also be provided that instead of the vertical axis 3, a pivoting movement about a horizontal axis, for. B. is provided on the lower horizontal frame spar. Even with such pure tilting wings, a gap opening position C can be set in a simple manner.

It is also possible to provide that the night ventilation position does not represent a pivoting about the axis 3 , but that the wing 2 is pivoted about a second about a tilt axis perpendicular to the axis 3 . For this purpose, only appropriate latch interventions on the lower or upper horizontal frame spar are to be provided, which hold the wing on the frame in the night ventilation position, such as. B. a toggle latch device.

With the configuration of the securing device 150 according to FIGS. 9a to 9c, both right and left wings 2 can be provided, since all components are aligned symmetrically on the longitudinal center lines. With the night ventilation device 21 , however, different frame parts 73 , 102 are to be provided for windows opening to the right and left. However, this can be dispensed with if the night ventilation device 21 is provided for the lower horizontal frame spar in the window shown in FIG. 1 and is attached to the upper horizontal frame spar with a wing opening to the left. Then the closing direction of the espagnolette fitting 6 is the same.

Reference list

1

frame

2nd

wing

3rd

vertical axis

6

Espagnolette fitting

7

Control handle

10th

Face plate or cover bracket

11

Connecting rod

12th

Groove

13

Fold surface

14

Corner deflection

15

leg

16

Locking pin

17th

Elongated hole

20th

horizontal frame leg

21

Night ventilation device

22

Fold surface

23

Frame viewing area

24th

Limiting arm

25th

Coupling point

26

Guide pin

27

Guide pin

28

Guide slot

29

Guide slot

30th

Step reduction

31

section

32

Focus

33

Base plate

34

Step reduction

35

head

36

disc

40

funnel-like guide surfaces

41

Longitudinal centerline of

21

42

Longitudinal centerline of

6

43

attack

44

Central axis

45

Circular ring sections

46

Guide pin

47

Backdrops

48

Holding mandrel

49

opening

60

Guide rivet

61

drilling

64

Spring element

65

attack

70

Cones

71

free end

72

semicircular hook

73

Frame part

74

attack

75

Backdrop

76

contour

77

pivot point

78

¼ circular section

79

B-shaped bridge

80

Flat area

81

undercut area

82

Federation

83

Undercut

84

Swivel axis

85

radius

86

bag

87

top, roof

88

height

89

Ramp area

90

Casserole

91

Mounting hole

92

width

93

Locking operations

94

Federation

95

width

96

width

100

Connecting rivet

101

Long hole

102

Frame part

103

opening

104

Cones

105

funnel-like guide surfaces

106

Handlebars

107

rivet

108

Pivot point

109

Long hole

110

Guide rivet

111

End (of

109

)

112

keyhole-like extension

113

Longitudinal centerline

115

Bend

116

head

117

Bend

150

Security device

151

Frame part

152

Safety arm

153

Cones

154

Bolt link

155

Sheet metal part

156

Bolt engagement

157

Cones

158

Long hole

159

section

160

leg

161

Mushroom cones

162

Bolt engagement

165

leg

166

Cones

167

feather

168

Longitudinal central axis

169

Longitudinal central axis

170

length

175

Area
A closed position
B Rotary opening position
C Slit opening position
R direction
X route
Y total stroke length
T tolerance distance

Claims (14)

1. Night ventilation device for a window, a door or the like., With a frame ( 1 ) and a wing ( 2 ), the night ventilation device having an espagnolette fitting ( 6 ) which is between a closed position (A) in which the espagnolette fitting ( 6 ) fixes the wing ( 2 ) on the frame ( 1 ), an open position (B), in which the wing ( 2 ) can be fully opened relative to the frame ( 1 ), and a gap opening position (C), in which the wing ( 2 ) with respect to the frame ( 1 ) can be opened into a gap ventilation position by the gap ventilation device, is displaceable, and has a movable gap opening arm ( 24 ) which, when the connecting rod fitting is shifted from the open position (B) to the gap opening position (C) Coupling point ( 25 ) is pivotally coupled to the drive rod fitting ( 6 ), characterized in that a displacement of the drive rod fitting ( 6 ) from the Sc hließstellung (A) moves out in the opening position (B) the Spaltöffnungsarm (24) over a distance (X), whereupon the Spaltöffnungsarm (24) runs against a blocking in the displacement direction of the stop (43, 61, 74), wherein the gap ventilation device adapted is that a further displacement of the connecting rod fitting ( 6 ) and thus the coupling point ( 25 ) from the open position (B) into the gap opening position (C) interacting with the stop ( 43 , 61 , 74 ) causes a pivoting movement of the gap opening arm ( 24 ) , wherein the gap opening arm ( 24 ) opens the wing ( 2 ) in a gap ventilation position. 2. Night ventilation device according to claim 1, characterized in that the effective length (L) of the gap opening arm ( 24 ) is dimensioned about half as large as the total stroke length (Y) of the connecting rod fitting ( 6 ) between the closed and open position (A , C). 3. Night ventilation device according to one of claims 1 or 2, characterized in that the gap opening arm as a limiting arm ( 24 ) on the connecting rod fitting ( 6 ) is arranged in a non-detachable and pivotable manner, its free end ( 71 ) being a coupling point ( 72 ) for connection to the has a fixed stop ( 74 ). 4. Night ventilation device according to claim 3, characterized in that the stop ( 74 ) has a pivot ( 77 ) forming link ( 75 ), the outer contour ( 76 ) of which forms a segment of a circle, and the limiting arm ( 24 ) at its free end ( 71 ) has an approximately semicircular hook ( 72 ) which - acting as a sliding block - interacts with the sliding block ( 75 ). 5. Night ventilation device according to claim 4, characterized in that the link ( 75 ) forms an undercut area ( 81 ) which the limiting arm ( 24 ) engages behind in the open position (C). 6. Night ventilation device according to one of claims 1 or 2, characterized in that the coupling point ( 25 ) of the limiting arm ( 24 ) cooperates as a positive connection with a locking member ( 16 ) of the connecting rod fitting ( 6 ). 7. Night ventilation device according to claim 6, characterized in that the guide slot ( 29 ) is provided on a base plate ( 33 ). 8. Night ventilation device according to one of claims 6 or 7, characterized in that the locking pin ( 16 ) in the rotary opening position ( 8 ) of the connecting rod fitting ( 6 ) from the limiting arm ( 21 ) is releasable. 9. Night ventilation device according to one of claims 6 to 8, characterized in that the limiting arm ( 21 ) with a funnel-like guide surfaces ( 40 ) provided opening ( 49 ) for the locking pin ( 16 ). 10. Night ventilation device according to one of claims 6 or 9, characterized in that the base plate ( 33 ) has two guide slots ( 28 , 29 ), the second guide slot ( 28 ) at least partially an arcuate section ( 31 ) around the center point ( 32 ) of the first guide slot ( 28 ). 11. Night ventilation device according to one of the preceding claims, characterized in that a passive safety device ( 150 ) is provided on the wing ( 2 ), which secures the wing ( 2 ) in the gap opening position (C). 12. Night ventilation device according to claim 11, characterized in that the securing device ( 150 ) on which the night ventilation device ( 21 ) opposite frame spar is arranged. 13. Night ventilation device according to claim 11 or 12, characterized in that the securing device ( 150 ) has a pivotable on the wing ( 2 ) or frame ( 1 ) articulated securing arm ( 152 ) which in the gap opening position (C) with one on the frame ( 1 ) or wing ( 2 ) arranged fixing member cooperates. 14. Night ventilation device according to claim 11 to 13, characterized in that the securing arm ( 152 ) forms a movable with the connecting rod fitting ( 6 ) fork-shaped locking engagement ( 156 ) which engages around a mushroom head pin ( 161 ) which is pivotally mounted on the frame ( 1 ) Security arm is assigned.