Device for mechanical closure sequence control

Abstract

A device (20) for mechanically controlling the closing sequence of a double-leaf door (1) having a moving leaf (2) and a fixed leaf (3), wherein the moving leaf (2) and the fixed leaf (3) each have a door drive (7, 8), and wherein each door drive (7, 8) is connected via a linkage (9, 12) to a respective slider (10, 13) arranged in a slide rail (11, 14), has a lock (22) which interacts with the slider (10) of the moving leaf (2), a trigger (24) for deactivating the lock (22), which interacts with the slider (13) of the fixed leaf (3), wherein the lock (22) is operatively connected to the trigger (24) via a cable (26), and a cable tensioning device (30) for tensioning the cable (26). The cable tensioning device (30) is arranged on the barrier (22) and / or the cable tensioning device (30) is designed to wind up an end section of the cable (26).

Description

[0001] The invention relates to a device for mechanical closing sequence control for a double-leaf door having a moving leaf and a passive leaf, wherein the moving leaf and the passive leaf each have a door drive, and wherein each door drive is connected via a linkage to a slider arranged in a slide rail, wherein the device has a lock that interacts with the slider of the moving leaf, a trigger for deactivating the lock that interacts with the slider of the passive leaf, wherein the lock is operatively connected to the trigger via a cable, and a cable tensioning device for tensioning the cable.

[0002] A device of the type mentioned above is known, for example, from EP 1 801 336 A1. Further devices of the type mentioned above are known from DE 10 2005 062 051 A1 and DE 103 60 039 A1.

[0003] Closing sequence controls are required for double-leaf revolving doors if, for example, the door leaves are provided with a rebate, whereby the inactive leaf with its rebate forms the stop for the active leaf. When the inactive leaf is walked on, the active leaf must also open. As the two door leaves overlap in the area of their main closing edges, i.e. in the middle area, the inactive leaf must always close first during the closing process before the active leaf can close completely. If the active leaf were to move into its closed position before the inactive leaf, the inactive leaf would not be able to close completely. With the correct closing sequence, the active leaf must therefore remain in a position in which the inactive leaf can still close.

[0004] To implement the aforementioned closing sequence, a lock is attached to the slide rail of the active leaf-side door closer system. This lock prevents the active leaf from closing beyond a certain opening angle until the inactive leaf, coming from its open position, reaches a defined opening angle, which initiates the closing of the active leaf. A trigger is attached to the slide rail of the inactive leaf-side door closer system. This deactivates the lock as shortly as possible before the inactive leaf closes, thus allowing the active leaf to close.

[0005] The slider on the active leaf side interacts with the lock, and the slider on the passive leaf side interacts with the release mechanism. The lock and the release mechanism are connected to each other via a cable. The lock can have a locking rod and a clamping element, for example a clamping disc package, which can clamp into the locking rod towards the main closing edge when the lock is activated. The lock is activated when the passive leaf is open and, accordingly, the cable between the release mechanism and the lock does not exert any pulling force on the release mechanism of the lock, which deactivates the lock. When the passive leaf is closing, the slider on the passive leaf side actuates the release mechanism from a certain open position of the passive leaf. This causes the release mechanism to pull on the cable, which then presses a plunger against the clamping disc via the release mechanism on the lock, thus releasing the jam.The lock is then deactivated and the active leaf can move into its closed position shortly after the passive leaf.

[0006] The known devices for closing sequence control are disadvantageous when it comes to correctly setting the cable tension between the trigger and the lock, which is necessary for the safe functioning of the closing sequence control. With the known devices mentioned above, the cable tension is adjusted when the passive leaf is open at the trigger, i.e. the lock is activated and the trigger is not operated. However, the correct setting of the cable tension can only be checked at the lock on the active leaf when the passive leaf is closed, the lock is deactivated and the trigger is operated. With the known devices, the adjustment or setting of the cable tension can only be carried out when the passive leaf is open and the trigger is not operated, since when the passive leaf is closed, the rods of the door drive on the passive leaf cover the trigger in the guide rail.Therefore, with the known devices, the rope has to be pre-tensioned by hand after cutting to length in order to ensure a certain pre-tension and adjustment range. The rope is then fixed with a screw. After the initial adjustment, the inactive leaf can be closed and the correct setting can be checked using the lock on the active leaf. If the setting needs to be changed or optimised again, the inactive leaf must be opened again and the rope tension can then be adjusted using an adjusting screw. However, this adjustment is made based on the installer's gut feeling, as the inactive leaf first has to be closed again in order to check the lock to see whether the rope tension is now correct. In addition, the constant switching from the active leaf to the inactive leaf to check the adjustment means that the installer has to assemble and disassemble the ladder each time.Due to this overall high workload, there is a risk that even if the cable tension is not adjusted optimally, the installation technician will consider the adjustment to be sufficient to complete the complex process.

[0007] Another disadvantage of the known devices is that the cable in the area of the trigger is guided around a pulley to adjust the cable length. To do this, the pulley is adjusted vertically, which requires space in the slide rail. Furthermore, the wire rope is flexed on the pulley during each closing cycle and is therefore subjected to stress.

[0008] The installation of the known devices for closing sequence control is therefore complex, particularly with regard to the process of tensioning the cable between the trigger and the lock.

[0009] The invention is based on the object of providing a device for mechanical closing sequence control whose installation is less complex. In particular, the cable tensioning process should be simpler than with known devices, and the cable tension should be able to be correctly adjusted in a single step, if possible.

[0010] According to the invention, this object is achieved with regard to the device for mechanical closing sequence control mentioned at the outset according to a first aspect in that the cable tensioning device is arranged on the barrier.

[0011] While in known devices the cable tensioning device is arranged on the release mechanism and thus the adjustment must be carried out with the passive leaf open, the lock activated and the release mechanism not actuated, the device according to the invention enables the cable tension to be adjusted directly on the lock mechanism when the passive leaf and the active leaf are closed. In contrast to known devices, the passive leaf does not have to be open to adjust the cable tension, but can be closed. When the passive leaf and the active leaf are closed for cable tension adjustment and the cable is not yet tensioned, the lock mechanism is in its activated position, to which it is pre-tensioned. Since the passive leaf is closed, its slider is in its closed position, which means that the release mechanism is already held in the correct position, i.e. in its actuated position.Tensioning the cable can now be easily performed on the cable tensioning device on the barrier, with the installation technician pulling the cable over the cable tensioning device. With the device according to the invention, the cable tension can be correctly adjusted in a single step to ensure the correct function of the closing sequence control. This avoids multiple attempts to adjust the optimal cable tension.

[0012] As provided in a preferred embodiment to be described later, a visual indicator may be provided on the lock to indicate the correct cable tension during tensioning, thereby further simplifying the setting of the optimal cable tension.

[0013] Preferred embodiments of the device according to the invention for mechanical closing sequence control are specified in the dependent patent claims and are described below.

[0014] Preferably, the rope tensioning device is designed to wind up an end portion of the rope.

[0015] Using a winding mechanism, the rope can be easily and continuously tensioned until the correct rope tension is set.

[0016] It is preferred if the cable tensioning device has a cable drum for receiving the end section of the cable, wherein the cable drum is rotatable about a rotation axis.

[0017] A rope drum represents a particularly simple and advantageous design of a winding mechanism. The rope is secured to the holder of the rope drum for tensioning, and by rotating the rope drum, the rope winds gradually and continuously around the rope drum, allowing the rope tension to be finely adjusted.

[0018] The end section of the rope can be accommodated, for example, by a cylindrical winding body of the rope drum which is concentric with the axis of rotation, wherein the cylindrical winding body is delimited by a larger-diameter disc which holds the rope on the cylindrical winding body when it is wound around it.

[0019] According to a preferred embodiment, the cable drum can have a bore perpendicular to the rotation axis for threading the end of the cable. The bore can be provided in the winding body. After threading the end of the cable through the bore, the cable can be wrapped around the winding body and tensioned by rotating the cable drum.

[0020] Preferably, the rope drum has an engagement structure for a tool to rotate the rope drum about its axis of rotation.

[0021] Such an engagement structure can, for example, be a multi-edged recess into which a tool, for example a key, in particular an Allen key, can be inserted, so that the tool can be used to rotate the cable drum about its axis of rotation with little effort in order to tension the cable.

[0022] Further preferably, the cable tensioning device is fixed to a longitudinally movable sliding carriage, which is operatively connected to a locking mechanism of the lock. In the case of the cable tensioning device being designed with a cable drum, the cable drum is translationally fixed to the sliding carriage relative to it, but is rotatably arranged on the sliding carriage. The sliding carriage is part of a release mechanism of the lock. When the cable is tensioned, the sliding carriage and the cable tensioning device are pulled towards the trigger. The locking mechanism can, as in the known devices, be formed by a locking rod and a clamping element interacting with the locking rod, for example a clamping disc package. The sliding carriage acts on the locking mechanism through its longitudinal movement, which is mediated by the cable when the trigger is actuated, in order to deactivate the lock.The activated position of the lock can be realized by pre-tensioning the lock into the activated position.

[0023] Preferably, the rope is guided through the sliding carriage or along the sliding carriage to the rope tensioning device and fixed to the sliding carriage by clamping.

[0024] The cable can be clamped to the slide carriage using a clamping screw or a threaded pin. Clamping the cable to the slide carriage eliminates the need for the cable tensioning device itself to have a locking mechanism. In the case of a cable tensioning device designed with a cable drum, the cable drum can thus rotate freely in both directions.

[0025] Preferably, the lock has a visual indicator which moves in the longitudinal direction of the slide rail when the cable is tensioned, wherein a fixed marking is provided on a housing of the lock which is aligned with the indicator when the lock is deactivated and the cable tension is correctly adjusted.

[0026] Such a visual adjustment mark on the lock, where the cable tensioning device is also located, is particularly advantageous as it further simplifies the adjustment of the cable tension in a single operation.

[0027] Further preferably, a trigger-side end of the cable is fixed to an actuating mechanism of the trigger, which is actuated by the slider on the passive leaf side during the closing process of the passive leaf, without deflection.

[0028] In this embodiment, the device according to the invention has a further advantage over known devices. In known devices, the cable is deflected around a pulley on the trigger side, with the pulley being vertically adjustable to set the correct cable length. Such a pulley therefore requires sufficient space in the slide rail. Furthermore, the pulley flexes the cable during each closing cycle and loads it accordingly. In contrast, in the device according to the invention in the aforementioned embodiment, the cable is fixed to the actuating mechanism of the trigger without any deflection. This avoids the aforementioned disadvantages of the known devices.

[0029] Preferably, the actuating mechanism comprises a gear that converts the direction of movement of the slider into an actuating direction of the actuating mechanism that is opposite to the direction of movement of the slider.

[0030] This design has the advantage that, despite the deflection-free attachment of the trigger-side end of the cable to the trigger's actuating mechanism, the actuating mechanism can exert sufficient tensile force on the cable to deactivate the lock.

[0031] Preferably, the gear comprises a pinion and two racks meshing with the pinion, which are arranged on opposite circumferential sides of the pinion.

[0032] In this design, the gear mechanism is space-saving and requires very little space on the slide rail. One of the racks can have a stop on the outer side opposite the teeth, with which the slider on the inactive leaf side interacts to actuate the release.

[0033] The above-mentioned object is achieved according to a further aspect by a device for mechanical closing sequence control of the type mentioned at the outset in that the cable tensioning device is designed to wind up an end section of the cable.

[0034] In other words, the above-mentioned embodiment of the cable tensioning device with a winding mechanism for winding the cable is considered to be an independent invention even without the features of the characterising part of claim 1.

[0035] It is understood that the above-mentioned and described advantageous embodiments of the device for mechanical closing sequence control according to the first aspect can also be provided in the device for mechanical closing sequence control according to the further aspect, including the first aspect that the cable tensioning device is arranged on the barrier.

[0036] Further advantages and features can be found in the following description and the attached drawing.

[0037] It is understood that the features mentioned above and those to be explained below can be used not only in the combination specified in each case, but also in other combinations or on their own, without departing from the scope of the present invention.

[0038] An embodiment of the invention is illustrated in the drawing and will be described in more detail below with reference to the drawing. They show: Fig. 1 a double-leaf door with a schematically shown device for mechanical closing sequence control; Fig. 2A a lock of the device for mechanical closing sequence control in the activated state as well as an end section of a guide rail on the aisle side; Fig. 2B a trigger of the device for mechanical closing sequence control in the non-actuated state as well as a section of a slide rail on the passive leaf side; Fig. 3A the lock in Fig. 2A in the deactivated state; Fig. 3B the trigger in Fig. 2B in the actuated state; Fig. 4a by about 90° opposite Fig. 2A and 3A rotated view of the lock; and Fig. 5 the trigger in Fig. 3B in a longitudinal section.

[0039] Fig. 1 shows an example of a double-leaf door 1, which has a moving leaf 2 and a fixed leaf 3. The moving leaf 2 is pivotally mounted on a door frame 5 via hinges 4. The fixed leaf 3 is pivotally mounted on the frame 5 via hinges 6. The moving leaf 2 is equipped with a door drive 7. The fixed leaf 3 is equipped with a door drive 8. The door drives 7 and 8 can be conventional door closers. The door drive 7 of the moving leaf 2 is connected via a rod assembly 9 to a glider 10, which is arranged to slide in a slide rail 11 on the moving leaf side. The door drive 8 of the fixed leaf 3 is connected via a rod assembly 12 to a glider 13, which is arranged to slide in a slide rail 14 on the fixed leaf side.

[0040] Fig. 1 shows the active leaf 2 and the passive leaf 3 in a partially open position. When closing the active leaf 2 and the passive leaf 3 via the drives 7 and 8, a specific closing sequence must be maintained such that the passive leaf 3 reaches its closed position before the active leaf 2. The reason for this is that the active leaf 2 closes with its main closing edge 15 against a main closing edge 16 of the passive leaf 3 and has an overhang, albeit a small one. When the active leaf 2 closes, it must therefore remain in a position in which the passive leaf 3 can still close. To achieve this closing sequence control, a device 20 for mechanical closing sequence control is provided.

[0041] The device 20 has a lock 22 on the active leaf side, a release 24 on the passive leaf side, and a cable 26, which is connected on the one hand to the lock 22 and on the other hand to the release 24. The lock 22 prevents the active leaf 2 from fully closing above a certain opening angle of the active leaf 2, until the passive leaf 3, coming from its open position, has a defined opening angle that initiates the closing of the active leaf 2. The release 24 is actuated by the slider 13 as shortly as possible before the passive leaf 3 is fully closed, thereby deactivating the lock 22 so that the active leaf 2 can then also fully close. The lock 22 interacts with the slider 10 of the active leaf 2 in such a way that, when the lock 22 is activated, the slider 10 cannot slide into its end position, which corresponds to the fully closed position of the active leaf 2.Only when the lock 22 has been deactivated by the trigger 24 can the slider 10 move to its end position, corresponding to the fully closed position of the active leaf 2. The trigger 24 interacts with the slider 13 of the passive leaf 3. The trigger function of the trigger 24 to deactivate the lock 22 is transmitted via the cable 26, which exerts a tensile force on the lock 22, more precisely its release mechanism, thus deactivating the locking mechanism. The lock 22 and the trigger 24 themselves are mounted stationary on the slide rails 11 and 14.

[0042] With reference to Fig. 2A, 2B , 3A, 3B , 4 and 5 The lock 22 and the trigger 24 are described in more detail below.

[0043] Fig. 2A and Fig. 3A show the slide rail 11 in a perspective side view / bottom view. Fig. 2A shows the lock 22 in a position opposite to its installation position ( Fig. 1 ) rotated view, ie Fig. 2A shows a view partly from below of the lock 22 and partly of one side of the lock 22. The same applies to Fig. 3A . Fig. 2A shows, in addition to the lock 22, a lock-side end section of the active leaf side slide rail 11 as well as the active leaf side slider 10 accommodated therein. Furthermore, Fig. 2A a barrier-side end section of the rope 26.

[0044] The lock 22 has a lock housing 28, which adjoins the end of the active leaf-side slide rail 11 and can be firmly connected thereto. A cable tensioning device 30 is arranged in or on the lock housing 28, which serves to tension the cable 26. The cable tensioning device 30 has, in particular, a mechanism 32 for winding up the end section of the cable 26 on the lock side. The mechanism 32 for winding up the cable 26, which is arranged in Fig. 4 can be seen, has a cable drum 34, which has a receptacle for the barrier-side end section of the cable 26. The cable drum is rotatable about a rotation axis 36. In the installation position according to Fig. 1 The rotation axis 36 runs vertically through the lock 22. The cable drum 34 has a cover plate 38 and a cylindrical winding body 40, around which the cable 26 is wound with one or more turns by rotating the cable drum 34 in order to tension the cable 26. The winding body 40 has a bore (not visible in the drawings) perpendicular to the rotation axis, through which the end of the cable 26 can be threaded, after which it is wound around the winding body. In order to be able to rotate the cable drum 34 easily, the cable drum 34 has an engagement structure 42 for the engagement of a tool (not shown). In the embodiment shown, the engagement structure 42 is designed as a hexagonal bore or opening into which an Allen key can be inserted in order to rotate the cable drum 34 with the Allen key.

[0045] The cable tensioning device 30 is mounted on a longitudinally movable sliding carriage 44 so as to be rotatable about the rotation axis 36, but is otherwise firmly connected to the sliding carriage 44 in a translational manner. In the exemplary embodiment shown, the cable 26 is guided by the sliding carriage 44 to the cable tensioning device 30, here the cable drum 34. A clamping screw or threaded pin 46 is arranged on the sliding carriage 44, with which the cable 26 can be fixed to the sliding carriage 44 by clamping, so that when the cable 26 is clamped, no relative movement can occur between the sliding carriage 44 and the cable 26. The sliding carriage 44 is axially slidably displaceable in the longitudinal direction of the slide rail 11 when the cable 26 exerts a tensile force on the sliding carriage 44.

[0046] The sliding carriage 44 is operatively connected to a locking mechanism 48 of the lock 22. The locking mechanism 48 has a clamping element 50, which is designed in the form of a clamping disc package. The clamping discs of the clamping disc package are in Fig. 2A and Fig. 3A not be seen with its full diameter. In Fig. 4 The clamping discs are not visible. The clamping element 50, ie the clamping disc package, surrounds a locking rod, from which Fig. 2A and 3A only one end 52 protruding from the housing 28 is visible. The clamping element 50 can move in the direction of the main closing edge of the active leaf 2, ie in the direction to the right in Fig. 2A jammed with the locking rod when the lock 22 is activated, so that the slider 10, which interacts with the locking rod, is blocked in its longitudinal mobility toward the main closing edge of the active leaf 2. Thus, the active leaf 2 cannot be moved into its fully closed position if the locking rod is blocked by the clamping element. For any details of the locking mechanism, reference is made to the prior art documents cited above, e.g., EP 1 801 336 A1.

[0047] The sliding carriage 44 is part of a release mechanism for the locking mechanism 48. For this purpose, the sliding carriage 44 is connected to the locking mechanism 48 via a mechanism having a first lever 54, which is hinged at one end to the sliding carriage 44 and which is hinged at its other end to a first lever arm 56 of a pivotably mounted second lever 58. A second lever arm 60 of the second lever 58 interacts with a plunger 62, which is mounted axially movable on the lock housing 28. The plunger 62 interacts with the clamping element 50 such that when the plunger 62 is pushed by the second lever arm 60 of the second lever 58 in the direction away from the main closing edge 15 of the active leaf 2, the plunger 62 straightens the clamping element 50, whereby the clamping of the clamping element 50 with the locking rod is released, so that the locking rod can then be displaced axially by the slider 10 in the direction of the main closing edge.The plunger 62 is pre-tensioned via plunger springs 64 in the direction of the main closing edge 15 of the active leaf 2, so that the lock 22 is pre-tensioned into the activated position.

[0048] Fig. 2A shows the activated state of the lock 22 when the trigger 24 does not exert any pulling force on the cable 26. In this state, the clamping mechanism 48 is active and the slider 10 cannot move into its end position corresponding to the fully closed state of the active leaf 2. Fig. 3A shows the lock 22 in the deactivated state, in which by exerting a tensile force on the cable 26 in the direction of an arrow 66 the sliding carriage 44 is pulled in the direction of the main closing edge 15 of the active leaf 2, whereby the second lever arm 60 of the second lever 58 presses the plunger 62 in the direction away from the main closing edge 15, whereby the plunger 62 straightens the clamping element 50 and the clamping between the clamping element 50 and the locking rod is released.

[0049] With reference to Fig. 2B , 3B and 5 The trigger 24 is described in more detail below.

[0050] Fig. 2B and 3B show the trigger 24, which is arranged in the slide rail 14 on the inactive leaf side, in a view of the underside of the slide rail 14 when it is in the installation position according to Fig. 1 while Fig. 5 a longitudinal section through Fig. 3B The left end in Fig. 2B , 3B and 5 is facing the barrier 22.

[0051] The trigger 24 has an actuating mechanism 70, upon actuation of which the lock 22 is deactivated, as will be described below. The trigger-side end of the cable 26 is attached to the actuating mechanism 70 without any deflection. This means that the cable 26 is not deflected from the lock 22 to the trigger 24 as in the prior art. In the illustrated embodiment, the trigger-side end 26 of the cable 26 has a thickened portion, for example in the form of a ball 72, which is hooked into a receptacle 74 of the actuating mechanism 70 ( Fig. 5 ).

[0052] The actuating mechanism 70 has a stop 76 with which the inactive leaf-side slider 13 interacts to actuate the trigger 24. The actuating mechanism 70 further has a gear 78, which serves to convert the direction of movement of the slider 13 into an actuating direction of the actuating mechanism 70 that is opposite to the direction of movement of the slider 13. The gear 78 has a first rack 80, a pinion 82, and a second rack 84. The first rack 80 is fixedly connected to the stop 76, in particular integrally connected. The first rack 80 and the second rack 84 are arranged on the slide rail for longitudinal movement. The first rack 80 and the second rack 84 are arranged on opposite circumferential sides of the pinion 82. The pinion 82 is rotatable about a rotation axis 86.When the first rack 80 moves to the left in the drawing, the pinion 82 rotates counterclockwise, shifting the second rack 84 to the right in the drawing, and vice versa. The receptacle 74 for securing the trigger-side end of the cable 26 is firmly connected to or formed on the second rack 84.

[0053] In Fig. 2B In this view, only the stop 76 and a smooth outer side 88 of the rack 80 are visible. The stop 76 is in its rest position, which is Fig. 2B shown, ie pre-tensioned to the right in the drawing. In the rest position, the stop 76 is in its retracted position towards the secondary closing edge of the inactive leaf 3. In Fig. 2B The slider 13 is displaced in the slide rail 14 towards the secondary closing edge of the passive leaf 3 and is no longer visible in the drawing. The trigger 24 is therefore not actuated, and the cable 26 does not exert any tensile force on the locking device 22 that is suitable for deactivating the locking device 22. The locking device 22 is thus in the activated position according to Fig. 2A . When closing the passive leaf 3, the slider 13 moves towards the stop 76. When the slider 13 initially touches the stop 76, the lock 22 is still in the activated state according to Fig. 2A . As the passive leaf 3 continues to close, the slider 13 moves the stop 76 toward the lock 22. As a result, the second rack 84 and thus the receptacle 74 are pulled away from the lock 22 by the reversal of movement by the gear 78, whereby the cable 26 exerts a tensile force on the sliding carriage 44 of the lock 22, thereby deactivating the lock 22. This state is shown in Fig. 3A (lock) and 3B (trigger). The passive leaf 3 is then almost or completely in its closed position, and the active leaf 2 can now also close completely with the lock 22 deactivated.

[0054] A method for adjusting the cable tension of the cable 26 is described below, which can be carried out particularly easily due to the arrangement of the cable tensioning device 30 directly on the lock 22, in particular without the need to carry out this process by feel and with several repetitions.

[0055] The process begins after the installation of the lock 22 or the lock housing 28 on the slide rail 11 of the active leaf 2 and the installation of the trigger 24 on the slide rail 14 of the passive leaf 3. A locking block 90 is provided for the installation of the trigger 24 in the slide rail 14, which closes the slide rail 14 at the end. The cable 26 is hooked with its thickened end 72 into the receptacle 74 and guided through the locking block 90.

[0056] The procedure is carried out with the passive leaf 3 and the active leaf 2 closed. The lock 22 is activated ( Fig. 2A ) and the trigger 24 is held by the slider 13 in the correct position (end position of the slider 13) ( Fig. 3B ).

[0057] After cutting the rope 26 to length, it is first guided tension-free through the slide carriage 44 into the rope drum 34 and threaded through the hole in the winding body 40 and placed around the winding body 40. By rotating the rope drum 34, the rope 26 winds around the rope drum 34 and the slide carriage 44 begins to move (in Fig. 2A to the right), which creates the necessary tension of the cable 26. During this tensioning process, the plunger 62 is moved against the force of the spring 64 in Fig. 2A pressed to the left. An indicator 63 is arranged on the lock 22 and serves to visualize the correct cable tension. The indicator element 63 here is a lock washer for one of the two plunger springs 64. The rotation of the cable drum 34 and thus the tensioning of the cable 26 continues until the indicator 63 is aligned with or in line with a marking 65 on the lock housing. The marking 65 can, for example, be a notch on the lock housing 28, as shown. When the indicator 63 is aligned with the marking 65, the cable 26 is fixed to the sliding carriage 44 with the clamping screw or threaded pin 46. The cable 26 is thus secured to the sliding carriage 44 by clamping. The cable drum 34 therefore does not require its own locking mechanism to fix the cable 26.

[0058] After the first adjustment, the cable tension is correct and the correct function of the closing sequence control is guaranteed.

[0059] By winding the cable 26 around the cable drum 34, no unnecessary installation space is required, and the cable 26 is not wound through a deflection pulley as in the prior art during each closing cycle of the door 1, since the tension exists between the clamping screw or threaded pin 46 and the trigger 24, more precisely the receptacle 74 of the actuating mechanism 70. Bezugszeichenliste

[0060] 1 double-leaf door 2 active leaf 3 inactive leaf 4 hinges active leaf 5 door frame 6 hinges inactive leaf 7 door drive active leaf 8 door drive inactive leaf 9 rods active leaf 10 glider active leaf 11 slide rail active leaf 12 rods inactive leaf 13 glider inactive leaf 14 slide rail inactive leaf 15 main closing edge of active leaf 16 main closing edge of inactive leaf 20 device for mechanical closing sequence control 22 lock 24 trigger 26 cable 28 lock housing 30 cable tensioning device 32 winding mechanism 34 cable drum 36 rotation axis of cable drum 38 cover plate 40 winding body 42 engagement structure 44 slide carriage 46 threaded pin 48 locking mechanism 50 clamping element 52 end of locking rod 54 first lever 56 first lever arm second lever 58Second lever 60Second lever arm Second lever 62Plunger 63Indicator 64Plunger springs 65Marking 66Arrow 70Actuating mechanism trigger 72Ball 74Actuating mechanism receptacle 76Actuating mechanism stop 78Gear 80First rack 82Pinion 84Second rack

Claims

1. A device for mechanically controlling the closing sequence of a double-leaf door (1) having a moving leaf (2) and a fixed leaf (3), wherein the moving leaf (2) and the fixed leaf (3) each have a door drive (7, 8), and wherein each door drive (7, 8) is connected via a linkage (9, 12) to a slider (10, 13) arranged in a slide rail (11, 14), wherein the device (20) has a lock (22) that interacts with the slider (10) of the moving leaf (2), a trigger (24) for deactivating the lock (22) that interacts with the slider (13) of the fixed leaf (3), wherein the lock (22) is operatively connected to the trigger (24) via a cable (26), and a cable tensioning device (30) for tensioning the cable (26), characterized in that the cable tensioning device (30) is arranged on the lock (22).

2. Device according to claim 1, wherein the rope tensioning device (30) is designed to wind up an end portion of the rope (26).

3. Device according to claim 2, wherein the cable tensioning device (30) has a cable drum (34) for receiving the end portion of the cable (26), wherein the cable drum (34) is rotatable about a rotation axis (36).

4. Device according to claim 3, wherein the cable drum (34) has a bore perpendicular to the axis of rotation (36) for threading the cable end of the cable (26) through.

5. Device according to claim 3 or 4, wherein the cable drum (34) has an engagement structure (42) for a tool to rotate the cable drum (34) about its axis of rotation (36).

6. Device according to one of claims 1 to 5, wherein the cable tensioning device (30) is fixed to a longitudinally movable sliding carriage (44) which is operatively connected to a locking mechanism (48) of the lock (22).

7. Device according to claim 6, wherein the cable (26) is guided through the sliding carriage (44) or along the sliding carriage (44) to the cable tensioning device (30) and can be fixed to the sliding carriage (44) by clamping.

8. Device according to one of claims 1 to 7, wherein the lock (22) has a visual indicator (63) which moves in the longitudinal direction when the cable (26) is tensioned, wherein a fixed marking (65) is provided on a housing (28) of the lock (22) which is aligned with the indicator (63) when the lock (22) is deactivated and the cable tension is correctly adjusted.

9. Device according to one of claims 1 to 8, wherein a trigger-side end of the cable (26) is fixed, without deflection, to an actuating mechanism (70) of the trigger (24), which is actuated by the slider (13) on the passive leaf side during the closing process of the passive leaf (3).

10. Device according to claim 9, wherein the actuating mechanism (70) has a gear (78) which converts the direction of movement of the slider (13) into an actuating direction of the actuating mechanism (70) which is opposite to the direction of movement of the slider (13).

11. The device according to claim 10, wherein the gear (78) comprises a pinion (82) and two racks (80, 84) meshing with the pinion and arranged on opposite circumferential sides of the pinion (82).

12. A device for mechanically controlling the closing sequence of a double-leaf door (1) having a moving leaf (2) and a fixed leaf (3), wherein the moving leaf (2) and the fixed leaf (3) each have a door drive (7, 8), and wherein each door drive (7, 8) is connected via a linkage (9, 12) to a slider (10, 13) arranged in a slide rail (11, 14), wherein the device (20) has a lock (22) that interacts with the slider (10) of the moving leaf (2), a trigger (24) for deactivating the lock (22) that interacts with the slider (13) of the fixed leaf (3), wherein the lock (22) is operatively connected to the trigger (24) via a cable (26), and a cable tensioning device (30) for tensioning the cable (26), characterized in that the rope tensioning device (30) is designed to wind up an end section of the rope (26).

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