EP2455572A2 - Blocking device for controlling the closing sequence of double-leafed swinging doors - Google Patents

Abstract

The invention relates to a locking device for controlling the closing sequence of two-leaf swing doors by means of a slide rail closer, wherein for holding the active leaf in the open position, the movement of the locking rod (20) is blocked by a locking device whose blocking effect by the opening of the passive leaf (2). can be produced and solvable by closing the inactive leaf.

The direction of the blockable relative movement of the locking bar (20) is directed towards that end of the slide rail (7), which is closer to the pivot axis of the active leaf (1).

Description

The invention relates to a locking device for controlling the closing sequence of two-leaf swing doors by means of a slide rail closer, wherein the 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.

Fire doors must prevent the spread of fire from the room on one side to the room on the other side of the door for a certain amount of time specified by the relevant standard. Of course they can only do that if they are properly closed. Due to a fold, ie a projection, by which the active leaf protrudes beyond the fixed leaf, it is necessary for the proper closing of a double-leaf fire door that the wings are closed 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, 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. This device is intended to cause the two door leaves to be closed automatically in the correct order.

If, with the inactive leaf open, the active leaf also open, for example driven by a spring, executes a closing movement leading the fixed 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 in its closing movement rushes far enough ahead of the active leaf, so that the correct closing sequence is reliably ensured.

In order for this closing sequence control can work, the active leaf must be opened at the opening of the inactive leaf at least up to that opening angle at which he must wait while closing the passive leaf before he can be closed himself. The co-opening of the active leaf is typically achieved by means of a driver flap; this is a part which is usually pivotally mounted on the inactive leaf, projects to the moving leaf and pushes it in the first part of the opening movement of the passive leaf in an opening movement in front of him. Such a flap shows the AT 010 451 U1 ,

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.

The DE 36 04 91 and the EP 1 801 337 B1 show a belonging to the closing sequence control device for the active leaf of a double-leaf, equipped with Gleitschienentürschließer door. On the belonging to the active leaf sliding block of Gleitschienentürschließers in the slide parallel to this extending so-called locking rod is attached. This rod is passed through a bore of a substantially stationary arranged clamping plate. The bore and the rod cross-section form a clearance fit when the plane of the clamping plate is aligned approximately normal to the rod longitudinal direction. As soon as the clamping plate is swiveled, the clamping plate and locking bar are jammed together. The clamping plate is pivotally mounted on a substantially stationary arranged part, wherein the pivot axis normal to the locking bar, next to this runs. On the clamping plate acts an elastic spring which "seeks" the clamping plate in the direction in which the locking bar is moved when the active leaf is closed. When the inactive leaf is closed, the spring counteracts a trigger pin which rotates the clamping plate counter to the action of said spring into a position in which the locking clasp can slide well through the bore in the clamping plate. When the inactive leaf is open, closing movement of the active leaf is prevented by the clamping plate, since this is pivoted by said spring in the clamping position. Opening movement of the active leaf is already possible because it causes friction between locking bar and clamping plate itself that the jamming between these two parts is released. So that movement of the active leaf is not abruptly stopped by clamping and thus does not cause damage to parts at high torques on the moving leaf, the clamping plate is not really anchored fixedly to the slide, but via a spring-mounted cage. When braking the closing movement of the active leaf according to said clamping the cage is moved with the clamping plate against the action of a spring, so that the movement is resiliently braked. If the cage with the clamping plate is moved in this way over a certain minimum distance - which is equivalent to that a certain level of force is exceeded -, the clamping plate abuts the above-mentioned release bolt and the clamping is released.

A disadvantage of the known designs discussed is that it is indispensable for the function that the holding of the active leaf takes place in such an angular range at which during the closing movement of the active leaf of the sliding leaf belonging to the sliding leaf in the sliding rail of the sliding rail door closer moves away from the axis of rotation of the active leaf. In many installation situations of double-leaf doors, this requires that the active leaf must be kept very open and kept very wide open when the fixed leaf is opened. As a result, this results in unsightly large driver fingers, which are arranged on the inactive leaf and protrude toward the active leaf, so that they force it into an opening movement of the inactive leaf in a sufficiently wide opening movement.

The object underlying the invention is to improve the known, based on slide rail closers devices for such double-wing swing doors, in which the belonging to a door sliding block moves during the last part of the closing movement of the door leaf in the slide on the axis of rotation of the door leaf becomes. The improvement is to be achieved that the Auslangen can be found when opening the inactive leaf with a smaller minimum opening angle of the active leaf.

To solve the problem is assumed by a closing sequence control with a slide rail door closer, wherein the sliding block of the active leaf is at least indirectly connected to a locking rod which extends parallel to the slide rail and wherein for holding the active leaf in the open waiting position, the movement of the locking rod to a blocking part is blocked until the blockade is released by closing the inactive leaf.

According to the invention, it is proposed to provide a locking device which is able to block movement of the locking bar connected to the sliding block of the active leaf to the axis of rotation of the active leaf when the stationary leaf is open.

Fig. 1:

Zeigt in Teilschnittansicht von oben eine zweiflügelige Schwenktür an der die erfindungsgemäße Vorrichtung anwendbar ist.

Fig. 2:

Ist ein Diagramm in welchem die Stellung "S" der mit dem Gleitstein des Gangflügels verbundenen Sperrstange über dem Öffnungswinkel "α" des Gangflügels gezeigt ist.

Fig. 3:

Zeigt eine beispielhafte erfindungsgemäße Sperrvorrichtung in anschaulich stilisierter Darstellung in Teilschnittansicht, wobei die Blickrichtung normal zur Längsrichtung der Sperrstange 20 liegt.

Fig. 4:

Zeigt in Explosionsdarstellung eine detailliert auskonstruierte, beispielhafte, erfindungsgemäße Sperrvorrichtung.

Fig. 5:

Zeigt in Teilschnittansicht eine Prinzipskizze eines Details einer vorteilhaft weiterentwickelten beispielhaften erfindungsgemäßen Sperrvorrichtung.

The invention is illustrated by means of drawings:

Fig. 1:

In partial sectional view from above shows a two-wing swing door to which the device according to the invention is applicable.

Fig. 2:

Is a diagram in which the position "S" connected to the sliding block of the active leaf locking bar is shown over the opening angle "α" of the active leaf.

3:

Shows an exemplary locking device according to the invention in vividly stylized representation in partial sectional view, the viewing direction is normal to the longitudinal direction of the locking bar 20.

4:

Shows in exploded view a detailed auskonstruierte, exemplary, inventive locking device.

Fig. 5:

In partial sectional view shows a schematic diagram of a detail of an advantageously further developed exemplary locking device according to the invention.

The double-wing swing door according to Fig. 1 has an overturning active leaf 1 and a striking passive leaf 2. The slide rail door closer comprises a slide rail 7, and in each case a closer 3, 4 on a door leaf, which are connected via a respective pivot arm, each with a sliding block 5, 6, which are linearly displaceable in the slide rail 7.

While during the pivoting movement of a door, the straight extension (in Fig. 1 dotted outlines) of the pivot arm of the associated door closer exceeds the axis of rotation of the door leaf, the direction of movement of the associated sliding block in the slide is reversed. During the pivoting movement of a door leaf from a completely closed position to a completely open position, the associated sliding block is first displaced somewhat towards the center of the slide rail and then far away. In the Closing movement of a door leaf takes place the reverse sliding movement of the associated sliding block.

Fig. 2 shows qualitatively (not to scale) the relationship between the opening angle α of a door leaf and the distance S of the associated sliding block from the axis of rotation of the relevant door next point to which the sliding block with wide open door can slide. Point "b" marks the dead center of the Gleitsteinbewegung, ie the point at which reverses the direction of movement of the sliding block during continuous opening or closing movement of the door leaf. In the construction methods according to the prior art discussed, it was necessary to set the required stopping point of the closing movement of the active leaf above the dead center b, for example to point c, ie to a relatively large opening angle. According to the construction according to the invention, it can now be placed at a point below the dead center b, for example on the point a.

In Fig. 3 an advantageous example of a locking device according to the invention is shown.

The locking bar 20 is according to its left end Fig. 3 with the (in Fig. 3 not shown) sliding block 5 of the active wing connected. It is parallel to (in Fig. 3 not shown) sliding rail 7 and typically extends in the groove of the typically designed as a U-profile slide rail. During the opening movement of the active leaf, the locking rod 20 according to Fig. 3 first move to the right for a short distance, then a larger distance to the left. The closing movement of the active leaf causes the reverse movement of the locking bar.

The locking device according to the invention has a base part 10, with which it is anchored (substantially) stationary with respect to the slide rail. At the base part 10 two clamping plate holder 11 are guided linearly movable parallel to the locking bar 20 held one behind the other, wherein the range of movement is limited by end stops, and the two clamping plate holder pressed apart by a pressure spring 21 arranged between them and thus pressed in the absence of other forces against each end stop of the linear guide on the base part 10. The locking rod 20 protrudes through both clamping plate holder 11 therethrough. In each clamping plate holder 11 each have a clamping plate 12 is arranged, through which the locking rod 20 also protrudes. The clamping plates 12 are pivotally held in the respective holder 11, wherein the pivot axis of the platens runs past the locking bar. If - as shown - do not press the release lever 14.1, 14.2 opposite to the clamping plate 12, the clamping plates are pivoted by a respective compression spring 13 from the normal plane to the direction of the locking bar out that they with the edges of their opening on the lateral surface of the locking bar come under pressure to concern. By this concern locking bar 20 and clamping plates are clamped against relative movement in one of the two directions parallel to the slide rail. The locking bar is then no longer displaceable relative to the clamping plate in the direction in which the clamping plate is pivoted out about its pivot axis from the position in which its plane is normal to the longitudinal direction of the locking bar. Relative movement of the locking bar relative to the clamping plate in the opposite direction is not clamped.

Since the two clamping plates 12 are pivoted out in opposite directions from the normal plane to the direction of the locking bar, they can jointly lock both directions of relative movement of the locking bar. According to Fig. 3 locks the left clamping plate according to Fig. 3 Movement of the locking bar to the right; the right clamping plate locks movement of the locking bar to the left.

By a respective trigger lever 14.1, 14.2, the lock can be canceled by a clamping plate. The release levers 14.1, 14.2 are held linearly displaceable on the base part 10. They can be pressed by the compression springs 13 opposite side to the respective clamping plate 12 and this pivot back into the normal plane to the direction of the locking bar, so that so that the deadlock is lifted and the locking rod is linearly movable again.

Movement of the release lever 14.1, 14.2 away from the clamping plate 12 is blocked by a stop on the base part 10 after a short distance.

With some effort, the locking rod 20 can be moved despite jamming with a clamping plate 12 in its longitudinal direction by the respective clamping clamping plate 12 and with this the associated clamping plate holder 11 against the action of the compression spring 21 are moved. With strong drive the movement of the locking rod, the clamping clamping plate 12 is moved to the associated release lever 14.1 and 14.2, pressed against this and released by this from the clamped position, so that the movement of the locking bar is thus released until a further jamming of the clamping plate , Thus, the overload protection is realized.

Movement of the release lever 14.1, 14.2 on the clamping plate and thus loosening the deadlock between clamping plate 12 and locking rod 20 is intended triggered by closing the inactive leaf 2, so that when the passive leaf closed the release lever 14.1, 14.2 are moved to the clamping plate 12 that this so are pivoted that they do not pinch the locking bar 20. For this movement of the inactive leaf is translated in motion of a connecting part 16 to a release lever. For this translation, there are in the context of professional trade and according to the state of the art many possibilities of realization, which is why it will not be discussed further here.

The two release levers 14.1, 14.2 are - for example - via a two-armed, rotatably mounted on the base 10 lever 15 connected to each other, so that movement of a release lever is transmitted to the other release lever and thus both clamping plates 12 can be triggered by a movement of a single connecting member 16 ,

When the inactive leaf 2 is closed so that the release lever 14.1, 14.2 moved to the clamping plate that they can not clamp, whereby movement of the locking rod 20 is freely possible which means that the active leaf is free to pivot.

If you open the passive leaf with the active leaf closed, the leaf is forcibly mitgeöff by a driver until the driver device disengaged. Due to the fact that then the release lever 14.1, 14.2 are withdrawn from the clamping plate 12, the clamping plates are clamped to the locking bar and movement of the active leaf is only possible by overcoming the force of the spring 21 and possibly under the overload protection.

If the inactive leaf is closed again, which is easily possible due to the fact that the active leaf is kept in an open waiting position, the release levers 14.1, 14.2 press again against the clamping plates; Movement of the locking rod 20) and thus the active leaf is released and the leaf can be closed.

It is advantageous, the locking rod 20 - as in Fig. 3 shown - form at a side facing away from the sliding block of the active wing longitudinal region 20.1 with smaller cross-sectional dimensions than at the lying closer to the sliding block longitudinal region. In the longitudinal region 20.1 with the smaller cross-sectional area, the locking rod 20 can not be clamped with the clamping plates 12, since the clamping works only at approximately the right angle between the plane of the clamping plates and the longitudinal direction of the rod and for that the clamping plates are pivoted too far. By locking device and taper on the locking rod 20 are arranged aligned with each other, it is achieved that from a certain minimum opening angle of the active leaf only the longitudinal portion 20.1 of the locking bar with reduced cross-sectional area passes through the clamping plate 12. Thus, in this opening angle range of the active leaf can be pivoted unmoved by the locking device even when the inactive leaf is open. If one were to omit the tapered longitudinal portion of the locking bar at all and thus would make the locking bar shorter, the movement of the locking bar would be more difficult to guide.

• Der Basisteil 10 ist mittels zweier Schrauben 101 an der Gleitschiene (nicht dargestellt) zu befestigen. Die Übertragung der auslösenden Bewegung durch den Standflügel auf die Sperrvorrichtung erfolgt über einen am Basisteil 10 schwenkbar zu lagernden Hebel 116, der mit dem Auslösehebel 14.1 schwenkbar verbunden ist. Die Auslösehebel 14.1, 14.2 werden bei Abwesenheit sonstiger Kräfte durch elastische Federn 102 welche zwischen den Auslösehebeln und dem Basisteil 10 eine Kraft ausüben, in jene Stellung gedrängt, bei der sie nicht an einem Klemmplättchen 12 anliegen. Die Druckfeder 21 ist über Hülsenteile 103 in gut definierter Lage zwischen den Klemmplättchenhaltern 11 gehalten.

The locking device according to Fig. 4 has the same operating principle as the locking device of Fig. 3 , Parts with the same functional principle as the items in Fig. 3 are therefore in Fig. 4 simplified with the same position number as in Fig. 3 designated. It is only additions and differences from the execution of Fig. 3 briefly mentioned:

• The base part 10 is to be fastened by means of two screws 101 on the slide rail (not shown). The transmission of the triggering movement through the stationary leaf on the locking device via a pivotally mounted on the base member 10 lever 116 which is pivotally connected to the release lever 14.1. The release lever 14.1, 14.2 are in the absence of other forces by elastic springs 102 which exert a force between the release levers and the base member 10, urged in that position in which they do not abut a clamping plate 12. The compression spring 21 is held over sleeve parts 103 in a well-defined position between the clamping plate holders 11.

When in the locking device according to Fig. 3 a clamping plate 12 removed, so the remaining locking device - depending on which clamping plate one leaves - only exactly for holding of the active leaf to the left or right of the dead center (b) according to Fig. 2 can be used, ie for holding the locking rod (20) against only one direction of movement.

If you want to use only a clamping plate anyway, so you can simplify the construction of the locking device compared to the illustrated form a bit. You then need only provide a single clamping plate holder and must also take precautions so that the clamp can act either in one or the other direction.

It is possible to provide the clamping plate holder including contents (clamping plate 12 and spring 13) in two mutually offset by 180 ° positions executed. This is feasible, but requires some assembly work when switching between the two positions.

As in Fig. 5 sketched, one can order the spring 113, which presses on the clamping plate to move this in a clamping position with the locking rod 20 position so that it moves the clamping plate selectively in one or the other locking position. According to Fig. 5 is achieved by the pivot axis of the clamping plate 20, the clamping plate 12 itself and the pressure force biased spring 113 are arranged in a straight line in a row, which is normal to the longitudinal direction of the locking bar and not parallel to the orientation of the pivot axis of the clamping plate. The clamping plate 12 is then - as in Fig. 5 dashed lines drawn - bend out of said straight lines in one or the other direction about its pivot axis and get into a clamping position. Typically, by pressure by means of a lever (not shown) on one side of the plate, this can be swung from the one blocking position to the other blocking position.

The switching between the two possible blocking positions of the clamping plate can be triggered for example by the sliding block of the moving leaf pivoting arm, in an advantageous Construction then, when this at the dead center of his movement (point "b" according to Fig. 2 ) approximates.

That spring (21 according to Fig. 3 and Fig. 4 ), which acts between the base part and clamping plate holder and by which the overload protection is realized, must also be mounted in two different positions, so that it is possible to choose in which of the two directions parallel to the locking bar she "tends to move the clamping plate holder relative to the slide".

It is possible to combine a simple, non-reversible clamping plate holder and the spring, which serves as overload protection to form an assembly and make them with respect to the orientation of the longitudinal direction of the slide in two mutually 180 ° rotatable positions on or in the slide mountable.

Likewise, you can with two springs on both sides between a single base and clamping plate holder acting, realize the two-sided overload protection.

If the geometrical conditions permit, it is preferable to orient the locking device thus acting in one direction only so as to block movement of the locking bar connected to the sliding block of the active leaf to the axis of rotation of the active leaf, in order to keep the active leaf in a waiting position. (Point "a" according to Fig. 2 ). In this waiting position, the swing arm of the active leaf is loaded on train and by this train, the slide of the door closer to the wall on which it is located, pressed. In addition to an advantageously small opening angle of the active leaf can be found even with smaller dimensions of the pivot arm and the slide Auslangen than in the opposite case (point "b" according to Fig. 2 ) in which the swivel arm is loaded on pressure and thus kinky and in which the slide rail is pushed away from the wall and thus loaded on bending and in which the Attachment points on the wall are heavily loaded. The loads are extremely high when the waiting position of the active leaf is in that opening angle range in which the sliding block of the active leaf is approximately at its Bewegungsstotpunkt (point "c" in the diagram according to Fig. 2 ).

By using both clamping plates, the locking device can be used for both areas without, moreover, requiring a complicated fine adjustment to the respective geometric conditions on a door.

The blocking device according to the invention can be used without blocking even in the dead center area of the movement of the sliding block of the active leaf (point "c" in the diagram according to FIG Fig. 2 ), regardless of the direction in which the locking bar is moved relative to the slide rail, at least one of the two plates 12 is stuck. That is, even if when opening the inactive leaf of the active leaf is mitgeöff up to that opening angle range in which the sliding block of the active leaf has either reached exactly its Bewegungsstotpunkt or just before or just after, the aisle is still held in this opening angle range without it any damage to any parts can occur.

The locking device according to the invention is thus very universal and extremely easy to install.

• Es kann ein Keil zwischen einem an der Gleitschiene - direkt oder mittelbar über eine elastische Feder - fixierten Teil und einem durch diesen Teil hindurchführenden Mantelflächenteil der Sperrstange eingesteckt werden um die Sperrstange zu fixieren und herausgeschoben oder gezogen werden um die Sperrstange zu lösen.
• Es kann ein Mantelflächenbereich der Sperrstange durch einen flexiblen Körper, welcher eine stark reibende Oberfläche aufweist, umschlungen sein, wobei der flexible Körper gegen Bewegung in Längsrichtung der Gleitschiene - direkt oder mittelbar über eine elastische Feder - gehalten ist. Um die Sperrstange zu blockieren wird die Umschlingung festgezogen, um die Sperrstange zu lösen wird die Umschlingung gelockert.
• Die Sperrstange kann zwischen Backen, ähnlich den Backen einer Zange, verlaufen, wobei diese Backen direkt oder mittelbar über eine elastische Feder gegen Bewegung entlang der Gleitschiene gehalten sind. Zum Sperren der Sperrstange werden die Backen zusammenbewegt, sodass sie die Sperrstange zwischen sich einklemmen. Zum Loslassen der Sperrstange werden die Backen wieder auseinander bewegt.
• Die Mantelfläche der Sperrstange kann eine Verzahnung oder Vertiefungen oder Erhebungen, also eine Struktur aufweisen, mit welcher für das Sperren der Sperrstange ein Teil verrastet, welcher direkt oder mittelbar über eine elastische Feder gegen Bewegung entlang der Gleitschiene gehalten ist. Für das Lösen der Sperrstange wird die Verrastung wieder gelöst.

So far, the tilting of a clamping plate has been described as a blocking principle of the locking device according to the invention. It should be expressly noted that within the scope of the invention, the use of other locking mechanisms is possible. Without any claim to completeness, examples include:

• It may be a wedge between a on the slide rail - directly or indirectly via an elastic spring - fixed part and passing through this part lateral surface part The locking bar are inserted to fix the locking bar and pushed out or pulled to release the locking bar.
• It may be a lateral surface area of the locking bar by a flexible body, which has a strong rubbing surface, be wrapped, wherein the flexible body against movement in the longitudinal direction of the slide - is held directly or indirectly via an elastic spring. In order to block the lock bar, the wrap is tightened to loosen the lock bar, the wrap is loosened.
• The locking bar can run between jaws, similar to the jaws of a pair of pliers, these jaws being held directly or indirectly via an elastic spring against movement along the slide rail. To lock the locking bar, the jaws are moved together so that they pinch the locking bar between them. To release the locking bar, the jaws are moved apart again.
• The lateral surface of the locking bar may have a toothing or depressions or elevations, ie a structure with which locks a part for the locking of the locking bar, which is held directly or indirectly via an elastic spring against movement along the slide rail. For disengaging the locking bar, the locking is released again.

Reference numeral directory:

1

leaf

2

Fixed leaf

3

Normally opener of the active wing

4

Closer of the passive leaf

5

Sliding block of the active wing

6

Sliding block of the passive leaf

7

slide

10

Base part of the locking device

11

Clamping wafer holder

12

Clamping plate (blocking part)

13

compression spring

14.1

sear

14.2

sear

20

locking bar

20.1

Longitudinal area with reduced cross-sectional dimensions

101

screw

102

feather

103

sleeve part

113

feather

116

lever

Claims (10)

Locking device for controlling the closing sequence of two-leaf swing doors by means of a Gleitschienenschließers, wherein the one door is a unterschlagender, so-called passive leaf (1) and the second wing a sweeping, so-called active leaf (2), wherein the sliding block (5) of the active leaf with a locking rod (20) is connected, which extends parallel to the slide rail (7) and wherein for holding the active leaf in the open waiting position, the movement of the locking rod (20) is blocked by a locking device whose blocking effect by the opening of the inactive leaf (2 ) and can be released by closing the inactive leaf, wherein the blocking device has a blocking part (12) supported against movement along the slide rail (7), which can be moved into a detachable connection with the blocking bar (20), which relative movement of the blocking bar (20 ) in the longitudinal direction of the blocking part (12) block n can,
characterized in that
the direction of the blocking relative movement of the locking rod (20) is aligned towards that end of the slide rail (7), which is closer to the pivot axis of the active leaf (1). Locking device according to claim 1, characterized in that the locking part (12) with the interposition of an elastic spring (21) relative to the slide rail (7) is supported, that on the slide rail without interposition of a spring-supported release part (14.1) in that movement path of the locking part (12) and / or a mitbewegbewegten part protrudes, these cover with elastic deformation of the spring (21), and that the connection between the locking rod (20) and locking part (12) by pressing the locking member (12) and / or a With This co-moving part of the release part and simultaneous movement of the locking rod (20) is releasable. Locking device according to claim 1 or claim 2, characterized in that in addition a second, relative to longitudinal movement along the slide rail (7) supported locking part (12) with the locking rod (20) in releasable by closing movement of the inactive joint can be brought, and that by this connection Relative movement of the locking rod (20) in the longitudinal direction in the direction can be blocked, which is aligned with the of the pivot axis of the active leaf (1) facing away from the end of the slide rail (7). Locking device according to claim 2 and claim 3, characterized in that both locking parts (12) via a spring (21) relative to the slide rail (7) are supported and that the clamping of both locking parts by striking the locking parts (12) on a trigger part (14.1, 14.2), which is supported unsprung against the slide, can be solved. Locking device according to one of claims 1 to 4, characterized in that a locking part (12) is a clamping plate (12) which has an opening through which the locking rod (20) passes, wherein in normal to the longitudinal direction of the locking bar aligned plane of the clamping plate Breakthrough of the clamping plate comprises the cross-sectional area of the locking bar (20) in a clearance fit such that the clamping plate (12) is held on a clamping plate holder (11) displaceable relative to the sliding rail in a limited area parallel to the rail longitudinal direction, that the clamping plate (12) on the clamping plate holder (11) is pivotally supported, wherein the pivot axis of the locking bar (20) passes over, and wherein a clamping plate between holder (11) and clamping plate (12) clamped spring (13) with respect to a parallel to the locking bar (20) aligned force the eccentric pivot of the clamping plate on the clamping plate (12) applies. Locking device according to claim 5, characterized in that a clamping plate (12) by a spring (113) in two, acting in opposite directions clamping with the locking rod (20) is movable. (Fig. 5) Locking device according to claim 5 and claim 3 or 4, characterized in that in each case a clamping plate (12) in a clamping plate holder (11) is arranged, that the springs (13) with respect to the direction parallel to the slide rail force directing components mutually oppositely directed forces on the respective clamping plates ( 12) exercise and that between the two clamping plate holders an elastic spring (21) is stretched, by which the two clamping plate holder (11) from opposite directions are pressed against each one with respect to the slide rail (7) immovable stop surface. Locking device according to one of claims 2 to 7, characterized in that a release part (14.1, 14.2) by closing movement of the inactive leaf on a locking part (12) is movable and away by opening movement thereof. Locking device according to claim 8 and one of claims 3 to 7, characterized in that the two stop parts (14.1, 14.2) connected to each other via a pivotable connecting lever and thereby synchronized are movable. Locking device according to one of claims 1 to 9, characterized in that the locking bar has two longitudinal regions with different sized cross-sectional dimensions, wherein the longitudinal region (20.1) connects with the smaller cross-sectional dimensions on the bottom side at the longitudinal region with a larger cross-sectional area.

Images