DE102012107443B4 - Device for controlling the closing sequence of double-leaf swing doors equipped with sliding rail closers - Google Patents

Abstract

The invention relates to a device for controlling the closing sequence of double-leaf swing doors, which are equipped with slide rail closers, whereby for blocking the closing movement of the active leaf (1) when the inactive leaf is open, movement of the sliding block (3) belonging to the active leaf (1) with the aid of a pair is blocked by wedge pieces (6, 7) which are held out on the sliding block of the active leaf (3) and are jammed by turning a rotating rod. The inclined surface (9) on which the wedge pieces (6, 7) rest against each other is at an acute angle to the axis of rotation of the rotating rod (5), with the distance from the pivot axis (1.1) of the active leaf increasing as the distance from the rotating axis of the rotating rod (5) increases (1) increases. The width of the gap between the rotating rod and the wall (2.1, 12.1) in which the wedge pieces (6, 7) are arranged has a local minimum at that longitudinal region of the slide rail (2, 12) at which movement of the slide block (3) of the Active leaf (1) is to be braked.

Description

The invention relates to a device for controlling the closing sequence of two-leaf swing doors, which are equipped with Gleitschienenschließern, wherein one door is a unterschlagender, so-called passive leaf and the second wing is a sweeping, so-called scroll.

The device according to the invention is particularly advantageous for such doors, which have to meet a security claim, in particular for fire doors with so-called panic and escape function, advantageously applicable.

Due to folds which constitute a projection of one door leaf in front of another door leaf, it is necessary for the proper closing of a double-leaf door to close the wings in the correct order. This is the case when, from the open state, the passive leaf is first brought into the closed position and only then is the active leaf. To ensure that this takes place safely even in case of fire in fire doors, the wings are not only provided with a drive which automatically moves the door in the closed position, but also with a device for controlling the closing sequence which should cause the two leaves automatically in the closed in the right order.

If, when the inactive leaf is open, the active leaf also open, for example driven by a spring, executes a closing movement leading the inactive leaf, then this closing movement is stopped by the action of the device for controlling the closing sequence at a certain opening angle until the inactive leaf is in its closing movement enough ahead of the active leaf that the correct closing sequence is guaranteed.

In sliding rail door closers a pivoting arm protrudes from a door leaf to a sliding block, which is mounted longitudinally movably in a sliding rail arranged on the upper frame part of the door frame. With the door closed, that end of the swivel arm, which is fastened to the door leaf, lies closer to the pivot axis of the door leaf than that end of the swivel arm which is connected to the sliding block. During the majority of the closing pivoting movement of the door leaf, the sliding block slides in the slide rail away from the axis of rotation of the door leaf.

It is customary to use the movement of the sliding blocks of the individual door leaves for controlling the closing sequence and to hold or release this movement appropriately. When the inactive leaf is open, the movement of the sliding block of the active leaf is blocked when the active leaf is closed at a barrier. When the inactive leaf is closed, the lock is released. In most cases, it is envisaged for the release of the lock that a connected to the sliding block of the passive leaf part acts on the barrier of the active leaf.

From the DE 195 48 202 A1 a door closer with controlled closing sequence is known. This known door closer is intended for swivel or sliding doors and includes an energy storage and a door brake having a slide which is mounted on / in the door frame or in / on the door leaf and slidably guides a carriage which is mechanically braked in the door closing direction by a Reibgehemme in which a friction element acting between the slide rail and the slide brakes the movement of the slide mechanically controlled.

In the DE 196 05 586 A1 For the realization of the principle described in the previous paragraph, it is proposed to use modular components, wherein a trigger module influenced by the sliding block of the passive leaf acts by means of a transmission module on the blocking module for the sliding block of the active leaf. Due to the modular design, adaptation to different door geometries should be particularly easy. In an otherwise unspecified embodiment, the transmission module should be formed by a mechanical link such as a rotary rod.

The DE 101 22 817 B4 shows a device for controlling the closing sequence of two-leaf swing doors, which are equipped with Gleitschienenschliessern, with a running along the slide rail, rotatable about its longitudinal axis rod acts as a transmission element between the inactive leaf and moving leaf. Rotary movement of the rotary rod is driven by a radially projecting from the rod pin, which projects into the pivoting range of the pivot arm between the inactive leaf and the sliding block of the passive leaf, directly by pivotal movement of the swing arm of the passive leaf. Movement of the sliding block of the active leaf is blocked or released by a radially projecting from the rotary rod cam acts as a locking member which is moved upon rotation of the rotary rod in the path of a part connected to the sliding block of the active leaf or thereof. In addition to many advantages is disadvantageous in the design that the rotary rod must be made very strong and telescopically by spring action to realize an overload protection can.

The DE 40 12 358 C1 shows another device for controlling the closing sequence of Double-leaf swing doors using sliding rail closers. A in the slide on this along, rotatable about its longitudinal axis rod with a square cross-sectional area is included in the respective longitudinal region of the sliding block of the passive leaf and the sliding block of the active leaf. In the longitudinal region of the inactive leaf, the rotary rod is twisted around its longitudinal axis so that its partial lateral surfaces each have the shape of a very steep screw thread flank. The sliding block of the passive leaf comprises the thread formed in the manner of a spindle nut. When moving the sliding block of the passive leaf in the rail longitudinal direction, the rotary rod is thus rotated slightly. By this twisting wedge pieces, which are arranged on the sliding block of the active leaf, moved radially away from the corner regions of the square cross-sectional area of the rotary rod from the rotational axis of the rotary rod and clamped between the rotary rod and slide rail. This movement of the sliding leaf belonging to the active leaf along the slide away from the axis of rotation of the active leaf, blocked and thus closing movement of the active leaf stopped. A disadvantage of this design is that the device can only work in those pivoting ranges of the door wings, in which the movement of the sliding blocks of the wings takes place during the closing movement of the wings away from the axis of rotation of the wings. In many door leaves, this movement takes place during the last part of the closing movement of the door leaf but on the axis of rotation of the door leaf. In particular, when the slide rail is disposed on the pivot axis of the door opposite side of the door frame, so that the active leaf must be brought with the open wing open in a disturbingly wide open standby position and held in this. If the wedge pieces causing the said blocking were to be placed in opposite orientation so as to block movement of the sliding block of the active leaf onto the axis of rotation of the active leaf, they would not only block closing movement of the active leaf, as required, but also with the fixed leaf open its wide opening movement.

The object underlying the invention is to provide the device according to the DE 40 12 358 C1 for controlling the closing sequence of double-winged swing doors to improve so that it can also be used to block closing movement of the active leaf in such a range of motion of the active leaf during which moves the sliding block of the active leaf to the axis of rotation of the active leaf.

• – Es werden Gleitschienentürschließer verwendet.
• – Für das Blockieren der Schließbewegung des Gangflügels bei geöffnetem Standflügel wird Bewegung des zum Gangflügel gehörenden Gleitsteins blockiert.
• – Eine Drehstange ist in der zu beiden Flügeln gehörenden Gleitschiene angeordnet, parallel zu dieser ausgerichtet und um eine parallel zur Gleitschiene ausgerichtete Drehachse durch Schwenken des Standflügels verdrehbar.
• – Die Drehstange verläuft durch eine Ausnehmung im Gleitstein des Gangflügels.
• – Die Breite des Spaltes zwischen der Mantelfläche der Drehstange und einer Wand der Gleitschiene ist durch Verdrehung der Drehstange um die besagte Drehachse veränderbar.
• – Ein Paar von Keilstücken ist am Gleitstein des Gangflügels im Spalt zwischen der Mantelfläche der Drehstange und der Wand der Gleitschiene geführt gehalten angeordnet.
• – In Abhängigkeit von der Verdrehung der Drehstange um deren zur Gleitschiene parallel liegende Drehachse sind die Keilstücke in dem besagten Spalt eingeklemmt oder liegen lose darinnen.

To solve the problem is based on a construction, which with that according to the DE 40 12 358 C1 the following features have in common:

• - Slide rail door closers are used.
• - To block the closing movement of the active leaf when the passive leaf is open, movement of the sliding leaf belonging to the active leaf is blocked.
• - A rotary rod is arranged in the belonging to both wings slide, aligned parallel to this and rotatable about an aligned parallel to the slide axis of rotation by pivoting the inactive leaf.
• - The rotary rod passes through a recess in the sliding block of the active leaf.
• - The width of the gap between the lateral surface of the rotary rod and a wall of the slide rail is variable by rotation of the rotary rod about said axis of rotation.
• - A pair of wedge pieces is arranged on the sliding block of the active leaf in the gap between the lateral surface of the rotary rod and the wall of the slide rail held out.
• - In dependence on the rotation of the rotary rod about its axis parallel to the slide rail axis of rotation, the wedge pieces are clamped in said gap or are loosely therein.

• – Die Schrägfläche an welcher die Keilstücke aneinander anliegen ist so ausgerichtet, dass mit zunehmendem Abstand zur Schwenkachse des Gangflügels der Abstand zur Drehachse der Drehstange zunimmt.
• – In jenem Längsbereich der Gleitschiene, welchen der Gleitstein des Gangflügels während einer maximal möglichen Schwenkbewegung des Gangflügels überstreicht, ist die mindeste Spaltbreite zwischen der Wand der Gleitschiene und der Mantelfläche der Drehstange, welche bei Drehung der Drehstange um ihre Drehachse auftritt, abhängig von der Koordinate in Längsrichtung der Gleitschiene.
• – Die besagte mindeste Spaltbreite weist an solchen Längsbereichen der Gleitschiene ein lokales Minimum auf, an welchen für die Schließfolgereglung Bewegung des Gleitsteins des Gangflügels abzubremsen ist.

Measures by means of which the desired improvement can be achieved are proposed according to the invention:

• - The inclined surface on which the wedge pieces abut each other is aligned so that increases with increasing distance to the pivot axis of the active leaf of the distance to the axis of rotation of the rotary rod.
• - In that longitudinal region of the slide, which sweeps over the sliding block of the active leaf during maximum pivotal movement of the active leaf, the minimum gap width between the wall of the slide rail and the lateral surface of the rotary rod, which occurs upon rotation of the rotary rod about its axis of rotation, depending on the coordinate in the longitudinal direction of the slide rail.
• - The said minimum gap width has at such longitudinal portions of the slide on a local minimum, at which for the closing sequence control movement of the sliding block of the active leaf is decelerated.

By the said orientation of the inclined surface against which the wedge pieces of the pair of wedge pieces abut each other, movement of the sliding block of the active leaf is blockable, which is aligned in the slide rail on the pivot axis of the active leaf. Thus, the active leaf can be braked even at advantageously small opening angles.

By said longitudinal dependence of the minimum gap width between the lateral surface of the Rotating rod and the lateral surface of the slide rail, it is possible to keep the active leaf despite said orientation of the inclined surface in the opening angle range, which is above the opening angle of the waiting position, free to pivot even when the inactive leaf is open.

The invention is illustrated including further advantageous features with reference to drawings:

1 : shows qualitatively on the basis of a diagram and a geometry sketch the movement of the slide rail end of a wing belonging to a swing arm depending on the opening angle of the active leaf. The drawing is equally valid for swing doors according to the prior art and swing doors equipped according to the invention.

2 : shows a first device according to the invention in a sectional view with respect to the slide rail normal viewing direction on those cutout on the slide, on which there is the sliding leaf belonging to the sliding block.

3 : shows a sectional view of part of a second device according to the invention in a sectional view with respect to the slide rail normal viewing direction.

The upper part of 1 is a partial sectional view from above of a hinged wing 1 , from the upper end face of a swivel arm 4.1 a door closer 4 to a sliding block 3 in a slide rail 2 protrudes, which is aligned horizontally, parallel to the plane of the closed active leaf. For visibility reasons is from the slide rail 2 in 1 only their situation indicated by dashed lines.

The lower part of 1 is a diagram showing the displacement s of the sliding block 3 relative to its position with the active leaf closed 1 depending on the opening angle of a moving leaf 1 shows. Positive displacement means increased distance of the sliding block to the axis of rotation 1.1 of the active wing.

If the extension of the swing arm 4.1 the axis of rotation 1.1 of the active leaf has the sliding block 3 its maximum distance to the axis of rotation of the active leaf. In the example shown, the sliding block 3 during the closing movement of the active leaf 1 only so long from the axis of rotation 1.1 the active leaf is pushed away, as long as the opening angle of the active leaf is more than about 15 °; at a smaller opening angle, it becomes the axis of rotation 1.1 postponed. By the especially on hand of 2 clearly recognizable embodiment of the invention, it is possible to put the waiting position of the closing movement of the active leaf only in those lower opening angle range, in which during the closing movement of the active leaf of the associated sliding on the pivot axis 1.1 of the active wing 1 too moved.

According to the inventive device of 2 is in the slide rail 2 - Which typically has an approximately C-shaped cross-sectional area - the sliding block 3 held longitudinally displaceable, on which the to the closer 4 of the active wing 1 belonging swivel arm 4.1 ( 1 ) is pivotally mounted. The sliding block 3 is pierced by a running in the rail longitudinal direction through hole, through which the rotary rod 5 passes through. The rotary bar 5 runs in through the slide rail 2 enclosed groove parallel to this. Opposite the slide rail 2 it is only about an axis parallel to its longitudinal axis (in the example shown, its axis of symmetry) rotatable, and not otherwise rotatable or displaceable.

The sliding block 3 has a recess through which a space is formed, which in the longitudinal direction of the slide rail 2 through walls of the sliding block 3 is limited and in a normal direction lying on the one hand by the turning bar 5 and on the other hand by a wall 2.1 the slide rail 2 , In this recess is a pair of wedge pieces 6 . 7 inserted in such a way that only the one wedge piece 6 at the turning bar 5 can lie and only the other wedge piece 7 on the side wall 2.1 the slide rail 2 , The rotating rod side wedge piece 6 indicates at its the turning bar 5 facing side parallel to the longitudinal direction of the slide rail surface. The second wedge piece 7 indicates at its the sidewall 2.1 facing side one to this side wall 2.1 parallel surface on. The two wedge pieces lie together 6 . 7 on an inclined surface 9 which is aligned so that with increasing distance to the pivot axis 1.1 of the active leaf, the distance to the axis of rotation of the rotary rod increases. In the illustration according to 2 So is the - not shown - pivot axis 1.1 of the active wing at some distance to the left of the sliding block 3 to accept.

The rotary bar 5 has at least one longitudinal area 5.2 in which its lateral surface is formed eccentrically with respect to its axis of rotation, that is, the outline of its cross-sectional area deviates from that of a circular line extending symmetrically about the axis of rotation. That means that for this longitudinal area 5.2 the distance between the lateral surface of the rotating rod 5 and the side wall 2.1 in that recess in which the pair of wedge pieces 6 . 7 is located, changes when the turning bar 5 is rotated about its axis of rotation. The eccentricity, so the difference between minimum and maximum distance between the lateral surface of the rotary rod 5 and the side wall 2.1 upon rotation of the rotary rod about its axis of rotation 5 is sized so that with minimal spacing, the wedge pieces 6 . 7 together the gap between rotary bar 5 and sidewall 2.1 bridge over and that they can not bridge this gap at maximum distance.

The rotary bar 5 also has longitudinal areas 5.1 on, which regardless of the angle of rotation of the rotary rod always such a large distance to the side wall 2.1 have that distance not through the wedge pieces 6 . 7 can be bridged. Preferably, the longitudinal areas predominate 5.1 the turning bar 5 over the longitudinal areas 5.2 ,

The wedge pieces 6 . 7 be during movement of the sliding block 3 of the active leaf in slide rail longitudinal direction with the sliding block 3 carried. Agility of the sliding block 3 in Gleitschienenlängsrichtung is independent of their rotational position by the rotary rod 5 not lockable, as long as the sliding block 3 at longitudinal areas 5.1 the rotary bar moves.

When the sliding block 3 at longitudinal areas 5.2 the turning bar 5 moved, its mobility in Gleitschienenlängsrichtung depends on the rotational position of the rotary rod. When the rotation axis 5 located in a position at the distance of its longitudinal region 5.2 to the side wall 2.1 is maximum, will be movement of the sliding block 3 not disabled.

When the turning bar 5 is located in a position where the distance of its longitudinal area 5.2 to the side wall 2.1 is minimal, will be movement of the sliding block 3 already hampered, because the wedge piece 7 On Wall 2.1 the slide rail 2 is pressed and is braked by friction. This braking effect is for the two possible directions of movement of the sliding block 3 different strengths.

When moving the sliding block 3 of the active leaf to the axis of rotation of the active leaf to (in accordance with 2 so to the left), acts on the wedge 7 from the wall 2.1 from a frictional force, by which this wedge piece on the inclined surface 9 on which the wedge pieces 6 . 7 abut each other, from the turning bar 5 away and increased on the wall 2.1 to pushed, so what the friction is further increased. For very flat execution of the inclined surface 9 So if this is a very acute angle to the longitudinal direction of the slide rail 2 This can completely block the mobility of the sliding block 3 on the axis of rotation to guide the active wing. It is better, the inclined surface 9 To execute so steeply that this complete blockage can not occur. In order to ensure that nevertheless sufficiently high minimum braking force is achieved in order to be able to stop the moving leaf in its closing movements driven by the door closer, until the inactive leaf is closed, that presses between sliding block 3 and wedge piece 7 clamped compression spring 8th from the same direction on the wedge piece 7 , from which also the frictional force through the wall 2.1 on the wedge piece 7 acts. The optimal inclination of the inclined surface 9 and the optimal preload of the spring 8th on the one hand to reliably prevent complete blocking, on the other hand reliably to provide sufficiently high braking force depends mainly on the friction coefficients on the inclined surface 9 and at the contact surface of the wedge piece 7 with the wall 2.1 from. In the context of expert action, optimal values can be found easily by combining calculations and tests. By - with correct interpretation of the inclination of the inclined surface 9 and the bias of the spring 8th - Movement of the sliding block 3 On the axis of rotation of the active leaf is not completely blocked, but is braked only with a certain force, an overload protection is realized. This overload protection prevents damage to occur when attempting to close the active leaf out of its waiting position without first closing the passive leaf.

When moving the sliding block 3 of the active leaf away from the axis of rotation of the active leaf (according to 2 so to the right), acts on the wedge 7 from the wall 2.1 from a frictional force, by which this wedge piece on the inclined surface 9 on which the wedge pieces 6 . 7 lie against each other, from the wall 2.1 is pushed away, so what the friction is reduced and flexibility remains possible in any case. The sliding block 3 the active leaf is thus independent of the rotational position of the rotary rod 5 always displaceable away from the axis of rotation of the active leaf. When the sliding block 3 while over the longitudinal area 5.2 the turning bar 5 moves and the rotary rod is in that rotational position at which the gap width between its outer surface and the wall 2.1 is minimal, is the movement of the sliding block 3 doing a low friction opposite, as the sliding block 3 according to the compression spring 8th but to the wall 2.1 is pressed.

The rotational position of the rotary bar 5 is intended - as known from the documents mentioned at the beginning of the prior art - influenced by the inactive leaf.

According to a first known principle, the rotary rod 5 in that longitudinal region which is run over by the sliding block of the passive leaf has a very steep thread and the sliding block of the passive leaf is designed as a spindle nut and accordingly has the matching steep complementary nut thread, so that it in its movement along the slide the rotary rod 5 rotates.

According to a second known principle of the rotary rod 5 a lever projecting radially, which projects into the pivoting region of the swing arm of the inactive leaf and thus also pivoted upon movement of this pivoting arm.

Due to the described inventive orientation of the inclination of the inclined surface 9 is achieved in addition to the already mentioned advantage as a further advantage that the swivel arm 4.1 of the active wing 1 on the waiting position is not loaded on pressure, but on train. Thus, much slimmer designs are possible, as they would be possible in construction according to the prior art and it is possible to lay the waiting position of the active leaf very close to those opening angle of the passive leaf, in which the sliding of the sliding block 3 reversed at the same swing direction of the active leaf. In the area of this reversal point, the door closer exercises 4 of the active wing 1 in case of blockage of the sliding movement of the sliding block 3 on the swivel arm 4.1 an extremely large normal force. By in the construction according to the invention, this normal force is a tensile force and not as in the construction according to the prior art, a compressive force, it is much better manageable.

If the inactive leaf is open (beyond a certain minimum angle), block the movement of the active leaf in a waiting position. Other movement of the active wing, such as further opening, should already be possible. For this to be achieved, according to the in 2 illustrated embodiment, the rotary rod 5 in longitudinal areas 5.1 and 5.2 divided, with the longitudinal areas 5.1 so slim are that on them movement of the sliding block 3 of the active wing can never be stopped.

This design is robust and well-functioning, but has the disadvantage that the position of the longitudinal area 5.2 , which is a local narrowing of the gap between rotary bar 5 and wall 2.1 the slide rail 2 is dependent on the geometric relationships of the pivoting door to be controlled. For different geometries of swing doors are thus different turning rods provide.

A local narrowing of the gap between the rotary rod and a wall of the slide rail - as required for the Schließfolgesteuerung - can also be achieved by locally thickening the relevant wall of the slide rail. An advantageous embodiment of this is in 3 illustrated. A wall 12.1 the slide rail 12 is with a grid of breakthroughs 12.2 provided on which an order part 13 with to the bridges 12.2 complementary extensions is plugged. The order part 13 then places a local thickening of the wall 12.1 through which in a limited longitudinal region of the slide rail 12 the distance between the wall 12.1 and the rotary rod is reduced. The rotary rod can now throughout the longitudinal area, which is covered by the sliding block of the active leaf, consistently have the same eccentric cross-sectional shape. The pair of wedge pieces held on the sliding block can define the gap between the turning bar and the wall 12.1 bridge only in that longitudinal area, in which the application part 13 the thickness of the wall 12.1 reinforced and thus reduces the gap width. In this embodiment, it is particularly advantageous that the position of the local narrowing of the said gap on the slide rail 12 is adjustable by the order part 13 in the appropriate place of the grid in the wall 12.1 is plugged. So that there can be no tilting between a wedge piece and the application part, the intended contact surfaces between the two parts should have bevelled edges.

In an advantageous embodiment, the gap between the rotary rod 5 and wall 2.1 , respectively. 12.1 the slide rail is narrowed not only in that longitudinal region at which the sliding block of the active leaf for the closing sequence control is to be kept in a waiting position, but also in that longitudinal region at which the sliding block of the active leaf reaches when the active leaf is completely closed. This can be achieved in a very economical manner, a gentle braking of the active leaf at the end of its closing movement.

Claims (6)

Device for controlling the closing sequence of two-leaf swing doors equipped with slide rail closers, one door wing being an underfoot, so-called passive leaf, and the second wing being an overrunning, so-called active leaf, - blocking the closing movement of the active leaf ( 1 ) with the inactive leaf open, movement of the sliding leaf belonging to the active leaf ( 3 ) is blocked, - where a rotary rod ( 5 ) in the sliding rail belonging to both wings ( 2 . 12 ) is arranged parallel to this and is aligned about an aligned parallel to the slide axis of rotation by pivoting the inactive leaf, - wherein the rotary rod ( 5 ) through a recess in the sliding block ( 3 ) of the active wing ( 1 ), - wherein the width of the gap between the lateral surface of the rotary rod ( 5 ) and a wall ( 2.1 . 12.1 ) the slide rail is variable by rotation of the rotary rod about said axis of rotation, - wherein a pair of wedge pieces ( 6 . 7 ) on the sliding block ( 3 ) of the active leaf in the gap between the wall ( 2.1 . 12.1 ) and the lateral surface of the rotary rod ( 5 ) is guided guided, - being dependent on the rotation of the rotary rod ( 5 ) about their axis of rotation parallel to the slide rail, the wedge pieces ( 6 . 7 ) are trapped in said gap or are loose, characterized in that - the surface on which the wedge pieces ( 6 . 7 ) abut each other, as an inclined surface ( 9 ) is formed, which to the axis of the rotary rod ( 5 ) occupies an acute angle, with increasing distance to the axis of rotation of the rotary rod ( 5 ) the distance to the axis of the active wing ( 1 ) increases, - that in that longitudinal region of the slide rail ( 2 . 12 ), which the sliding block ( 3 ) of the active wing ( 1 ) sweeps over during a maximum possible pivoting movement of the active leaf, the minimum gap width between the wall ( 2.1 . 12.1 ) and the lateral surface of the rotary rod ( 5 ), which upon rotation of the rotary rod ( 5 ) occurs about its axis of rotation, is dependent on the coordinate in the longitudinal direction of the slide rail ( 2 . 12 ), And that the said minimum gap width at such longitudinal regions of the slide rail ( 2 . 12 ) has a local minimum at which movement of the sliding block ( 3 ) of the active wing ( 1 ) for the control of the closing sequence of the door is slow down. Apparatus according to claim 1, characterized in that on a wedge piece ( 6 . 7 ) of the sliding block ( 3 ) of a preloaded spring ( 8th ) exerts a force directed in parallel to the slide rail longitudinal direction, which is oriented such that in the case of the absence of other forces coming from the rotary bar ( 5 ) facing away wedge piece ( 7 ) along the inclined surface ( 9 ) from the rotary bar ( 5 ) Move away. Apparatus according to claim 1 or claim 2, characterized in that the rotary rod ( 5 ) in that length range, which of the sliding block ( 3 ) of the active wing ( 1 ) is swept over during a pivoting movement of the inactive leaf, two longitudinal regions ( 5.1 . 5.2 ), wherein the maximum radial distance of a cross-sectional area of the rotating rod ( 5 ) from the axis of rotation of the rotary rod ( 5 ) in the longitudinal area ( 5.2 ) is greater than this maximum radial distance in the longitudinal region ( 5.1 ) and wherein the contour of the cross-sectional area in the longitudinal area ( 5.2 ) of a circular line with the axis of rotation of the rotary rod ( 5 ) deviates as an axis. Device according to claim 1 or claim 2, characterized in that the wall ( 12.1 ) in that length region of the slide rail ( 12 ), which from Gleitstein ( 3 ) of the active wing ( 1 ) is swept over in a pivoting movement of the inactive leaf, has a local survey, which from the other wall area ( 12.1 ) protrudes in the direction of the rotary rod. Apparatus according to claim 4, characterized in that the local elevation on the wall ( 12.1 ) by a separate order part ( 13 ) formed on the wall ( 12.1 ) is attached. Device according to one of claims 1 to 5, characterized in that the gap between the rotary rod ( 5 ) and wall ( 2.1 . 12.1 ) of the slide rail ( 2 . 12 ) in addition to that longitudinal region where the sliding block ( 3 ) of the active wing ( 1 ) is kept in a waiting position for the closing sequence control, is also narrowed in that longitudinal region at which the sliding block ( 3 ) of the active wing ( 1 ), when the active leaf ( 1 ) is completely closed.

Images