A countercase

Abstract

The invention relates to a strike box (8, 8') for a passive leaf lock (7) of a double-leaf door, with - a housing (11), - an actuating device (12), e.g. a lock nut, for unlocking the passive leaf lock (7), - a first ejector (13), - a second ejector (14), wherein the first ejector (13) and the second ejector (14) can be pressed against locking elements (5, 6) of a moving leaf lock (3, 3') opposite the passive leaf lock (7) by actuating the actuating device (16), and in the process press the locking elements (5, 6) of the moving leaf lock (3, 3') out of the housing (11) of the strike box (8).The counter box is characterized in that at least the first ejector (13) has a carrier (23) and an ejector element (24) which is detachably fastened to the carrier (23) and which presses against the locking element (5) of the active leaf lock (3) during the actuation of the actuating device (12), wherein the ejector element (24) can be optionally mounted on the carrier (23) of the first ejector (13) in at least two different mounting positions with different distances (A1, A2) from the second ejector (14).

Description

[0001] The invention relates to a strike box for a passive leaf lock of a double-leaf door, with a housing, an actuating device, e.g. a lock nut, which can be actuated to unlock the inactive leaf lock, a first ejector, a second ejector, wherein the first ejector and the second ejector can each be pressed against locking elements (e.g. a bolt and a latch) of a moving leaf lock opposite the inactive leaf lock by actuating the actuating device (e.g. by turning the lock nut with a handle or the like), and in doing so press the locking elements of the moving leaf lock out of the housing of the strike box and press them back into the housing of the moving leaf lock, for example.

[0002] Furthermore, the invention relates to a passive leaf lock with such a strike box and to a locking system for a double-leaf door with, on the one hand, a passive leaf lock arranged on the active leaf and, on the other hand, a passive leaf lock arranged on the passive leaf.

[0003] In the context of the invention, double-leaf doors are doors that have, on the one hand, a so-called active leaf and, on the other hand, a so-called passive leaf. The passive leaf is closed during normal operation and thus remains in a locked position, while the active leaf - as with a conventional, single-leaf door - is opened and closed for passage. In or on the passive leaf, the passive leaf lock is arranged with the strike box, which is equipped with an actuating device, e.g., a lock nut, so that the passive leaf lock can also be unlocked via the lock nut and thus the passive leaf can be opened. The invention preferably relates to a strike box for a passive leaf lock with a panic function, in which at least one handle, e.g., a panic handle, or a panic bar is connected to the (rotatable) lock nut. By actuating the lock nut (e.g.,When the door is opened (e.g., via the panic handle or the panic bar), both an upper locking bar connected to the strike box and a lower locking bar connected to the strike box are moved and preferably retracted (along the longitudinal direction of the lock) towards the strike box, thus unlocking it. In the locked position, the locking bars connected to the strike box engage in corresponding locking receptacles, which are arranged, for example, on the top side of the door frame or lintel and on the bottom side of the floor.

[0004] The active leaf lock arranged in or on the active leaf has several locking elements, e.g. a latch and a bolt, which engage in the strike box of the passive leaf, which is also in the closed position, when the active leaf is closed.

[0005] The strike box according to the invention or the inactive leaf lock according to the invention is preferably designed for panic operation. For this purpose, a number of ejectors are integrated into the strike box, e.g. a latch ejector and a bolt ejector, which, when the handle or panic bar on the inactive leaf is actuated, for example, push the locking elements of the active leaf engaging in the strike box, e.g. the bolt and the latch, out of the strike box and preferably back into the housing of the active leaf lock. The ejectors are moved, for example, in a working direction oriented transversely to the longitudinal direction of the lock and are preferably moved out of the housing of the inactive leaf lock. The ejector function ensures that the opening of the inactive leaf, e.g. in the course of a panic operation, is not disrupted by the locking elements of the active leaf lock engaging in the strike box of the inactive leaf lock.

[0006] A strike box for a passive leaf lock with an upper rod connection for connecting an upper connecting rod and a lower rod connection for connecting a lower connecting rod, as well as a lock mechanism with a switching nut for actuating the retraction and extension of the rod connection, is known, for example, from DE 20 2013 001 053 U1. By actuating the switching nut, the rod connections are retracted from their extended position to the retracted position via the lock mechanism, and a latch ejector and a bolt ejector are activated and swung out.

[0007] To ensure proper panic function in an escape door solution, it is important to ensure that the ejectors of the passive leaf lock sufficiently push back the locking elements of the active leaf lock. In practice, this can be problematic due to differing gap dimensions between the front surfaces of the active leaf and the passive leaf, and especially differing rebate dimensions. Therefore, various solutions are known from the state of the art that allow for a so-called "rebate adjustment" in the passive leaf lock.

[0008] EP 2 752 539 B2 describes a passive leaf lock with a latch ejector and an adapter that can be attached to the latch ejector to compensate for the rebate gap, allowing the end face of the latch ejector to be extended. The adapter is positively connected to the ejector, with the positive connection being formed by a tenon joint with a tenon and a tenon receptacle. The adapter itself is designed as a plate, and the tenon and tenon receptacle are embossed.

[0009] Alternatively, DE 10 2018 115 985 B4 describes a strike box in which the bolt slide or bolt ejector is designed as a switchable bolt slide which can be switched between a rigid state and a soft state and, when the active sash lock is unlocked, a rebate air shutter which precedes the bolt slide switches the bolt slide from rigid to soft upon contact or during contact with the face plate of the active sash lock or a door sash face plate.

[0010] The solutions described deal with the so-called rebate air gap compensation, which can be used to react to varying rebate air gap dimensions and thus also to a varying gap dimension between the faceplate of the active leaf lock and the faceplate of the passive leaf lock.

[0011] A distinction must be made between the rebate clearance and the gap dimension and the so-called distance dimension, which is also referred to as "distance." This refers to the active leaf lock. The distance dimension defines the distance between the lock follower and the profile cylinder of the active leaf lock, whereby this can be a mortise lock with a lock follower and profile cylinder or a center lock of a multi-point locking system. The active leaf lock or its locks are offered with different distance dimensions, in practice, for example, with "distance 72" or "distance 92" and consequently with a distance between the lock follower and profile cylinder of 72 mm or 92 mm. Due to the design of the active leaf lock, a different distance dimension results in a different design and, in particular, different dimensions of the lock mechanism, so that in particular the distance between the locking elements, e.g.The distance between the deadbolt and latch varies. For a lock with a distance of 92 mm, the distance between the deadbolt and latch is therefore greater than for a lock with a distance of 72 mm. This directly follows that for a double-leaf door, the ejectors in the strike box must be different depending on the distance of the active leaf lock.

[0012] In practice, different strike boxes are therefore provided for a lock with, for example, a 72-degree lock and a 92-degree lock. This has proven successful in practice, as each strike box is optimally adapted to the corresponding active leaf lock. However, the design, manufacture, and especially the storage of differently designed strike boxes is associated with complexity and expense—this is where the invention comes in.

[0013] The invention is based on the object of creating a strike box for a passive leaf lock of a double-leaf door, which, with an economical and functional design, enables simple and functionally reliable adaptation to a moving leaf lock and, in particular, to various moving leaf locks with different distance dimensions.

[0014] To achieve this object, the invention teaches in a generic strike box of the type described at the outset that at least the first ejector (e.g. the bolt ejector) has a carrier and an ejector element which is detachably fastened to the carrier and which presses against the locking element of the active leaf lock when the actuating device is actuated, wherein the ejector element can be or is mounted optionally in at least two different mounting positions with different distances from the second ejector (e.g. from the latch ejector) on the carrier of the first ejector (e.g. the bolt ejector).

[0015] According to the invention, at least the first ejector, which can be the bolt ejector, for example, is not designed as a single piece, but is rather modularly composed of a carrier on the one hand and an ejector element on the other. The carrier is coupled to the lock mechanism and is displaced during actuation, for example in the working direction oriented transversely to the longitudinal direction of the lock. However, the carrier does not act directly on the locking element of the active leaf lock, but via the ejector element fastened to the carrier, which can also be referred to as a pressure piece. According to the invention, the ejector is designed in such a way that the ejector element can be fastened to the carrier in different positions (in particular with respect to the longitudinal direction of the lock and consequently vertical positions) in order to enable the strike box to be adapted to the respective distance of the active leaf lock.For this purpose, the ejector element of the first ejector can be fastened to the support on the one hand in a first, e.g. upper position with a first distance (along the longitudinal direction of the lock) from the second ejector and on the other hand in a second, e.g. lower position with a second distance from the second ejector, wherein the second distance is greater than the first distance by a differential dimension. If the strike box is to be used with an active leaf lock with a first, e.g. small distance dimension, the ejector element is mounted in the first position. However, if the strike box is to be used with an active leaf lock with a second, e.g. larger distance dimension, the ejector element can be mounted in the second position.

[0016] If, for example, strike boxes are to be provided for a passive leaf lock with a first distance of, say, 72 mm and a second distance of, say, 92 mm, which results in a difference of 20 mm for the distance and thus also the distance between the bolt and latch varies by 20 mm, the strike box ejector is designed so that the difference achieved by mounting the ejector element in the different positions corresponds to the described difference of, say, 20 mm. Overall, the strike box design can be adapted to use in combination with passive leaf locks with different distances by varying the positioning of the ejector element on the support.

[0017] However, this adjustment is not usually made during the on-site assembly of the strike box on the door. Rather, it is expedient to continue to provide strike boxes during production that are adapted to the respective distance of the active leaf lock. However, the design according to the invention enables particularly economical production and assembly of the strike box(es) with a reduced variety of parts and thus also reduced manufacturing and assembly costs (whereby the term "assembly" here does not refer to the on-site assembly of the strike box on the door, but to the assembly of the individual components of the strike box and consequently its manufacture).Even if different counter boxes are still made available for the distance dimensions 72 and 92, these counter boxes can be assembled / manufactured with predominantly identical parts, since the entire lock mechanism does not have to be adapted to the distance dimension, but the adaptation is achieved by mounting the ejector element on the ejector in the optimal function.

[0018] Essential to the invention is the variation of the distance between the active surfaces of the two ejectors and consequently of the first ejector and the second ejector. According to the invention, this is achieved by designing at least the first ejector with the ejector element, which can be optionally mounted in at least two different mounting positions. The first ejector can be designed as a bolt ejector that is pressed against the bolt of the active leaf lock, and the second ejector can be designed as a latch ejector that is pressed against a latch of the active leaf lock. The strike box is therefore preferably designed for interaction with an active leaf lock or active leaf lock, which has a bolt and a latch in a basically known manner.The latch, also referred to as the lock latch, is preferably spring-loaded and can therefore be pushed back into the lock housing against the force of a spring and is generally not secured against backlash. It has a latch bevel. In contrast, the bolt, as a true locking element, is preferably secured against backlash. The bolt can be retracted during unlocking, e.g. via a profile cylinder, but not pushed back into the lock housing from the outside like a latch. Based on this, the invention optionally proposes that the first ejector, which is designed as a bolt ejector, can be pressed against a bolt of the active leaf lock that is secured against backlash, and that the ejector element can be used to release the bolt's backlash protection by first pressing the ejector element against a release lug on the bolt when the actuating devices are actuated.The design of a bolt with a push-back protection device with a release tab for canceling the push-back protection device is generally known in locks of a moving leaf lock that interact with a passive leaf lock, and in particular with a panic lock. The ejector according to the invention with the detachable ejector element is preferably designed such that this ejector element, which can be attached to the support in various positions, initially works against the release tab during actuation, thereby canceling the push-back protection device.

[0019] The possibility essential to the invention of fastening the ejector element to the carrier in at least two different mounting positions can be implemented in different ways.

[0020] In a first embodiment, the carrier of the first ejector, e.g. the bolt ejector, has at least two spaced-apart mounting receptacles, which can be bores, for example, wherein the ejector element can be selectively fastened in or on these mounting receptacles, wherein the mounting receptacles are preferably spaced apart by the aforementioned differential dimension. The bores can be designed as threaded bores and the ejector element can be designed as a screw element, so that the ejector element can be screwed either into the first threaded bore or into the second threaded bore. This enables very simple mounting of the ejector element in the desired position and thus very simple adaptation of the strike box to the specific distance of the opposite lock.

[0021] In a second embodiment, the ejector element can be arranged on an ejector plate or formed by an ejector plate which can be optionally fastened to the carrier in two different orientations, so that the ejector element can be designed, for example, as a reversible plate. The ejector plate / reversible plate can have a plate-shaped mounting section to which the ejector element is connected, e.g. formed integrally. The carrier of the first ejector can have one or more support bolts and the ejector plate can have one or more corresponding recesses, so that the ejector plate can be easily pushed onto the support bolts in two different orientations and thus mounted on the carrier. Conversely, the ejector plate with the support bolts and the carrier of the ejector can optionally have recesses.Since the ejector element is not arranged centrally but eccentrically (in relation to the height) on the ejector element, the mounting height of the ejector element and thus the adaptation to the distance dimension can be realized by selecting the respective orientation.

[0022] It is always advantageous if the ejector element is spaced apart by a differential dimension in the two mounting positions, i.e., the first mounting position differs from the second mounting position by a differential dimension along the longitudinal direction of the lock. This is preferably 10 mm to 30 mm, e.g., 20 mm. As already explained, it is preferably adapted to the difference in the distance dimensions of the locks to be used. The differential dimension therefore corresponds to the difference between a first distance dimension of a first active leaf lock and a second distance dimension of a second active leaf lock.

[0023] When designing the mechanical function of the strike box, known strike boxes can generally be used. At least one lock chain can be arranged in the housing, which can be adjusted in the longitudinal direction of the lock via the actuating devices, e.g. the lock nut, and which is equipped with or connected to an upper rod connection and / or a lower rod connection, wherein an upper locking rod and / or a lower locking rod for locking the inactive leaf lock can be connected or is connected via the upper rod connection and / or the lower rod connection. The lock chain is also referred to as a drive rod connection slide and can be formed, for example, by one or more slides. The lock chain is preferably designed in several parts, ie an upper chain is provided which works on an upper connecting rod and a lower chain which works on the lower connecting rod.Since the connecting rods are preferably retracted in opposite directions to unlock the passive leaf lock, the upper chain and the lower chain are preferably also moved in opposite directions during the actuation by the actuating device. The upper chain and / or the lower chain can be moved against the force of one or more springs during the unlocking process.

[0024] To further increase security against tampering, the strike box, e.g. the lock chain, is secured with at least one anti-backlash device to prevent the lock chain from being moved manually within the housing. This anti-backlash device is also referred to as a rod lock because by blocking any movement of the lock chain (e.g. the upper and / or lower chain) in the longitudinal direction of the lock, any movement of the respective locking rod or both locking rods is also prevented and consequently locked. For this purpose, separate anti-backlash devices or multiple anti-backlash devices can be implemented for the upper chain on the one hand and the lower chain on the other. It is important that by actuating the actuating device, e.g. turning the lock nut, the locking rods are retracted and the ejectors are actuated and consequently moved in the working direction and, for example,be pressed out of the housing of the strike box. For this purpose, the operating device, e.g., the lock follower, operates via a gear or multiple gears with one or more gear elements on the lock chain, e.g., the upper chain and / or the lower chain, as well as on the ejectors, e.g., the bolt ejector and the latch ejector. Please also refer to the description of the figures.

[0025] It is interesting that the inventive design of at least the first ejector allows the counter box to be adapted to different distances without having to modify the gear or lever mechanism between the actuating device and at least the first ejector. The invention optimizes the principle of using common parts, with corresponding advantages for warehousing, production, and assembly. The uniform use of a gear with the same lever spacing also leads to consistent operating forces for the different distances.

[0026] The focus of the invention is the described strike box, which is a component of a passive leaf lock.

[0027] However, the invention also relates to a passive leaf lock for a passive leaf of a double-leaf door, with a strike box of the type described attached to a lock faceplate. The passive leaf lock has at least one locking bar, preferably an upper locking bar and a lower connecting bar, wherein the upper locking bar is connected to an upper bar connection of the strike box and the lower locking bar is connected to a lower bar connection of the strike box.

[0028] The invention further relates to a locking system for a double-leaf door, wherein the locking system has, on the one hand, a moving leaf lock and, on the other hand, a passive leaf lock of the type described with the strike box according to the invention. The moving leaf lock is fastened to a moving leaf of the double-leaf door and the passive leaf lock is fastened to a passive leaf of the double-leaf door. The moving leaf lock can be a conventional moving leaf lock, e.g. a mortise lock or a drive rod lock with multiple locking. The mortise lock or the center lock of the moving leaf lock can have a latch and a bolt as locking elements and, moreover, the aforementioned lock follower and the profile cylinder, the distance between which defines the distance of the moving leaf lock.The bolt of the mortise lock or center lock is preferably provided in the manner described with a release element, e.g. a release lug, which is actuated by the associated ejector in order to cancel any provided push-back protection of the bolt.

[0029] Finally, the invention also relates to a modular system and consequently to a system which comprises at least two counter boxes of the type described, i.e. a first counter box which is designed for a moving leaf lock with a first distance dimension and a second counter box which is designed for a moving leaf lock with a second distance dimension, wherein the second distance dimension deviates from the first distance dimension and is, for example, larger or smaller by the aforementioned difference dimension. It is interesting that the two counter boxes can be constructed with essentially identical lever mechanisms and that they differ essentially in that the ejector element which is essential to the invention is fastened in different positions on the support of the first ejector.This system provides two strike boxes which, through the described assembly of the ejector element, are designed for different locks with different distances, but which can be characterized by a fundamentally identical lever mechanism.

[0030] The invention will be explained in more detail below with reference to drawings which merely represent exemplary embodiments. Fig. 1a locking system for a double-leaf door, Fig. 2a section of Fig. 1 , Fig. 3 a counter box according to the invention of a passive leaf lock of the locking system according to Fig. 1 and 2 , Fig. 4 a first strike box with associated active leaf lock for a first distance, Fig. 5 a second strike box with associated passive leaf lock with a second distance, Fig. 6 the ejector of the strike box according to Fig. 4 , Fig. 6Bthe ejector of the counter box Fig. 5, Fig. 7A, legs modified embodiment of the ejector according to Fig. 6A and 6B in two different mounting positions, Fig. 8A, legs section of the counter box according to the invention in the area of ​​the upper lock chain in two different views and Fig. 9A, legs section of the counter box according to the invention in the area of ​​the lower lock chain in two different views.

[0031] In Fig. 1a locking system for a double-leaf door (with a moving leaf 1 and a passive leaf 2) is shown, which is preferably equipped with a panic function. The locking system has a moving leaf lock 3 fastened to the moving leaf 1, which has a bolt 5 and a latch 6 as locking elements in a center lock 4. Furthermore, the locking system has a passive leaf lock 7, which is fastened to the passive leaf 2 of the double-leaf door. The passive leaf lock 7 has a striker box 8 and an upper locking bar 9a connected to the striker box 8 and a lower connecting bar 9b connected to the striker box 8. In the locked state, the upper locking bar 9a engages with its upper end in a locking receptacle 10a, which is arranged, for example, on the upper door frame. The lower locking bar 9b engages with its lower end in a locking receptacle 10b, which is, for example, integrated into the floor.The strike box 8 has a housing 11 and an actuating device, which can be a lock nut 12. A (not shown) handle or a panic bar for unlocking the passive leaf lock 7 is inserted into the lock nut 12, for example via an actuating pin. By actuating the nut 12, for example via the panic bar or a handle, the functions shown in . Fig. 1shown locking rods 9a, 9b are retracted from their locking positions and consequently moved in the longitudinal direction L of the lock, in opposite directions towards the strike box 8. However, the function of the strike box 8 is not limited to retracting the locking rods 9a, 9b to unlock the passive leaf lock 7. For particularly safe operation, e.g. for a panic operation, it should also be ensured that the locking elements 5, 6 of the active leaf lock engaging in the strike box 8, e.g. the latch 6 and the bolt 5 of the active leaf lock 3, are pressed out of the strike box 8 so that the pivoting out of the passive leaf 2 is not disrupted by the locking elements 5, 6 of the active leaf lock 3 engaging in the strike box 8.For this purpose, the strike box 8 is equipped with at least two ejectors, namely a first ejector 13 and a second ejector 14, wherein the first ejector in the exemplary embodiment forms a bolt ejector 13 and the second ejector a latch ejector 14. The locking elements, namely the latch 6 and the bolt 5 of the active leaf lock 3, engage in the strike box 8 in the locking position. During the unlocking of the inactive leaf lock 7, the lock follower 12 is rotated and the locking rods 9a, 9b are thus retracted. At the same time, both the latch ejector 14 and the bolt ejector 13 are extended in the working direction A, so that they push both the lock latch 5 and the bolt 4 of the active leaf lock 3 out of the strike box 8, so that the active leaf lock can be easily opened.

[0032] For this purpose, the lock nut 12 operates via several gear elements on the upper connecting rods 9a and the lower connecting rods 9b as well as on the upper ejector 14 and the lower ejector 13. An upper chain 15a is arranged in the lock housing 11 of the counter box 8 and is displaceable in the lock longitudinal direction L, forming a rod connection 16a for the upper connecting rod 9a. Furthermore, a lower chain 15b is provided which is displaceable in the housing 11 and forms or has a rod connection 16b for the lower connecting rod 9b.

[0033] The lock nut 12 operates via one or more gear elements on the upper chain 15a. In the exemplary embodiment, the lock nut 12 operates via a deflection wheel 17 on the lock chain 15a, so that when the lock nut 12 is actuated, the upper chain 15a is displaced downwards against the force of a spring 19a and thus the upper locking bar 9a is retracted. Furthermore, the lock nut 12 operates via a nut arm 20 on a bell crank 21, which is coupled to the lower chain 15b, so that when the lock nut 12 is actuated, by pivoting the bell crank 21, the lower lock chain 15b is displaced upwards against the force of a spring 19b and thus the lower locking bar 9b is retracted.

[0034] In addition, the lock nut 12 acts via the deflection wheel 17 on the upper ejector 14 and consequently on the latch ejector 14, so that during the rotation of the lock nut 12 the ejector 14 is pushed out of the housing 11 in the working direction A.

[0035] The lock nut 12 is operatively connected to the lower ejector and consequently to the bolt ejector 13 via another gear element, namely a drive lever 22. When the lock nut 12 rotates, the drive lever 22 pivots, thus pushing the lower bolt ejector 13 out of the housing 12 in the working direction A.

[0036] The passive leaf lock 7 shown in the figures is designed according to the invention in such a way that the construction can be easily adapted to various passive leaf locks 7 with different distance dimensions E1 or E2. For this purpose, the Fig. 4a moving leaf lock or the center lock of a moving leaf lock 3 with a first distance E1, which is 92 mm, for example, and a corresponding strike box 8. In contrast, the Fig. 5 a moving leaf lock or the lock of a moving leaf lock 3' with a second distance dimension E2 of e.g. 72 mm, as well as a corresponding strike box 8'.

[0037] The distance measurements E1, E2 are the distance between the lock nut 25 (of the active leaf lock 3) and a merely indicated profile cylinder 26. A comparative analysis of the Figures 4 and 5shows that with the reduced distance E2, the distance between the latch 6 and the bolt 5 of the lock is also reduced. Accordingly, the ejectors 13, 14 of the respective strike box 8, 8' must also have an adapted distance along the lock longitudinal direction L. According to the invention, this is achieved in that the first ejector and consequently the bolt ejector 13 has, on the one hand, a carrier 23 and, on the other hand, an ejector element 24 which is detachably fastened to the carrier 23 and which presses against the bolt 5 of the active leaf lock 3 upon actuation of the actuating device 12. The ejector element 24 is not firmly attached to the carrier 23, but can be mounted in two different positions, namely a lower mounting position ( Fig. 4 ) or an upper mounting position ( Fig. 5) to the support 23 of the ejector 13, so that the ejector element 24 is optionally mounted at different distances A1, A2 to the trap ejector 14. This results from a comparative analysis of the Fig. 3 and 4 . In the functional position according to Fig. 4 the ejector element 24 is mounted at a greater distance A2 to the trap ejector 14 than in Fig. 5 , where the distance in Fig. 4 is greater than the first distance A1 by a difference measure, whereby this difference measure M can correspond to the difference between the first distance measure E1 and the second distance measure E2. Details are also given in the Fig. 6A and 6B which only show the bolt ejector 13 in interaction with the bolt 5 of the active leaf lock 3 or 3', whereby Fig. 6A the mounting position accordingly Fig. 4 and Fig. 6B the mounting position accordingly Fig. 5 shows. The Fig. 5For example, a counter box 8' with a reduced distance E2 and at the same time an increased backset D. However, this is not important within the scope of the invention, so that equally in Fig. 5 a strike box with the same backset can be used as in Fig. 4 shown.

[0038] A comparative analysis of the Figs. 4 and 5 shows, moreover, that the two lock boxes 8, 8' are essentially equipped with the same lock mechanism, so that, to a very large extent, identical components can be used. The adaptation of the lock box to the corresponding distance E1, E2 of the lock is not carried out by completely replacing the lock mechanism, but by selecting the appropriate mounting position of the ejector element 24 on the ejector carrier 23. In the illustrated embodiment, Fig. 5Due to the increased backset, a support 23 is used which differs in length from the support 23 according to Fig. 4 deviates. However, if strike boxes with identical backset are used, a support of the same dimension or a support of identical construction could also be used here. Regardless of whether locks with the same or identical backset are used, the design according to the invention has the advantage that the remaining lever mechanism can be designed identically and that, in particular, the lever geometry and the lever spacing of the drive lever 22 remain identical, so that in practice, identical operating forces occur regardless of the distance of the lock.

[0039] Of particular importance is the possibility of mounting the ejector element 24 at different height positions on the support 23. A possible construction is shown in the Fig. 6A and 6BIn the embodiment according to Fig. 6A and 6B The carrier 23 of the first ejector 13 has two mounting receptacles 34a, b in the form of bores, spaced apart along the lock longitudinal direction L, to which the ejector element 24 is selectively attached. The mounting receptacles 34a, b are spaced apart by the differential dimension M. In the exemplary embodiment, the mounting receptacles 34a, b are designed as threaded bores, and the ejector element 24 is designed as a screw element, which is selectively screwed into the respective threaded bore.

[0040] The Fig. 7A and 7Bshow an alternative embodiment in which the ejector element 24 is arranged on an ejector plate 33, which can be fastened to the carrier 23 in two different orientations, so that the ejector plate 33 forms a turning plate. For this purpose, the carrier 23 is equipped with several support bolts 35 and the ejector plate 33 is equipped with several recesses 36, so that the ejector plate 33 can be plugged into different positions on the support bolts 35 of the carrier 23. It is important that the ejector element 24 formed on the ejector plate 33 is not connected centrally to the ejector plate 33, but rather decentrally, so that it is mounted at different heights of the ejector 13 in the different mounting positions of the turning plate 33. The height difference corresponds to the aforementioned difference dimension M, which in the exemplary embodiment is 20 mm and corresponds to the difference between the distance dimensions E1 and E2.

[0041] The lock chain, or rather the upper chain 15A and the lower chain 15B, are - as already explained - preferably secured against back pressure, so that the locking bars 9a, 9b connected to the chains 15A, 15B are also secured against back pressure in order to increase the security against manipulation. Possibilities for back pressure protection are described in the Figures 8A, 8B and 9A, 9B. The Figures 8A and 8B show, as an example, the multiple push-back protection of the upper chain 15A from two different views, namely a front view ( Fig. 8A ) and a rear view ( Fig. 8B). A first locking surface 27 is formed on the lock chain, which interacts with an arm 28 of the reversing lever 17. A second locking surface 29 is formed in a recess of the upper chain 15A, into which a pin 30 on another arm of the reversing lever 17 engages. A third locking surface 31 is formed in the area of ​​the upper chain 15A, also on the aforementioned arm of the upper chain 15A, with this third locking surface interacting with the latch ejector 14. Thus, by way of example, a triple push-back protection device is realized in the area of ​​the upper chain 15A.

[0042] The Fig. 9A and 9Bshow, by way of example, the push-back protection in the area of ​​the lower chain 15B, again from two opposing views. A first locking surface 32 is formed on the lower chain 15B, which interacts with a counter surface of the drive lever 22. A second locking surface is formed on a projection of the upper chain 15B, which interacts with the bolt ejector 13 or its carrier 23.

Claims

1. Strike box (8, 8') for a passive leaf lock (7) of a double-leaf door, with - a housing (11), - an actuating device (12), e.g. a lock nut, for unlocking the passive leaf lock (7), - a first ejector (13), - a second ejector (14), wherein the first ejector (13) and the second ejector (14) can be pressed against locking elements (5, 6) of a moving leaf lock (3, 3') opposite the passive leaf lock (7) by actuating the actuating device (16), thereby pressing the locking elements (5, 6) of the moving leaf lock (3, 3') out of the housing (11) of the strike box (8), characterized in thatat least the first ejector (13) has a support (23) and an ejector element (24) which is detachably fastened to the support (23) and which presses against the locking element (5) of the active leaf lock (3, 3') when the actuating device (12) is actuated, wherein the ejector element (24) can be selectively mounted on the support (23) of the first ejector (13) in at least two different mounting positions with different distances (A1, A2) from the second ejector (14).

2. Counter box according to claim 1, characterized in that the ejector element (24) of the first ejector (13) can be fastened to the carrier (23) on the one hand in a first, e.g. upper position with a first distance (A1) (along the lock longitudinal direction) from the second ejector (14) and on the other hand in a second, e.g. lower position with a second distance (A2) from the second ejector (14), wherein the second distance (A2) is greater than the first distance (A1) by a difference dimension (M).

3. Counter box according to claim 1 or 2, characterized in that the first ejector (13) is designed as a bolt ejector and can be pressed against a bolt (5) of the active leaf lock (3) and the second ejector (14) is designed as a latch ejector and can be pressed against a latch (6) of the active leaf lock (3).

4. Counter box according to claim 3, characterized in that the first ejector (13) can be pressed as a bolt ejector against a bolt (5) of the active leaf lock (3) which is secured against back pressure, and the ejector element (24) cancels the back pressure protection of the bolt (5) by first pressing the ejector element (24) against a release lug of the bolt (5) when the actuating device (12) is actuated.

5. Counter box according to one of claims 1 to 4, characterized in thatthe carrier (23) of the first ejector (13) has at least two spaced-apart mounting receptacles (34a, b), e.g. bores, to which the ejector element (24) can be selectively fastened, wherein the mounting receptacles (34a, b) are preferably spaced apart by the difference dimension (M).

6. Counter box according to claim 5, characterized in that the mounting receptacles (34a, b) are designed as threaded bores and the ejector element (24) as a screw element, wherein the ejector element (24) can be selectively screwed into the threaded bores.

7. Counter box according to one of claims 1 to 4, characterized in that the ejector element (24) is arranged on an ejector plate (33) or is formed by an ejector plate which can be fastened to the carrier (23) in two different orientations, e.g. in the embodiment as a reversible plate.

8. Counter box according to claim 7, characterized in thatthe carrier (23) has one or more support bolts (35) and the ejector plate (33) has one or more corresponding recesses (36), or conversely the ejector plate has support bolts and the carrier recesses.

9. Counter box according to one of claims 2 to 8, characterized in that the difference dimension (M) is 10 mm to 30 mm, e.g. 20 mm.

10. Counter box according to one of claims 2 to 9, characterized in that the difference dimension (M) corresponds to the difference between a first distance dimension (E1) of a first active leaf lock (3) and a second distance dimension (E2) of a second active leaf lock (3`).

11. Inactive leaf lock (7) for an inactive leaf of a double-leaf door, with a strike box (8) fastened to a lock faceplate according to one of claims 1 to 10 and preferably with an upper locking bar (9a) and / or a lower locking bar (9b) for locking the inactive leaf lock.

12. Locking system for a double-leaf door, with a moving leaf lock (3) attached or attachable to a moving leaf (1), which has at least one bolt (5) as the first locking element and a latch (6) as the second locking element, wherein the bolt (5) is spaced apart from the latch (6) in the lock longitudinal direction (L), e.g., is arranged below the latch, and with a moving leaf lock (7) attached or attachable to a fixed leaf (2) according to claim 11.

13. Locking system according to claim 12, characterized in that the active leaf lock (3) has an actuating device (12), e.g. a lock nut on the one hand and a profile cylinder on the other hand, wherein the profile cylinder is spaced apart from the actuating device or lock nut by a distance (E1, E2), e.g. is arranged below the lock nut by the distance (E1, E2).

14. A construction kit comprising at least a first counter box (8) according to one of claims 1 to 10 and a second counter box (8') according to one of claims 1 to 10, wherein the first counter box (8) is designed for a moving leaf lock (3) with a first distance dimension (E1) and the second counter box (8') is designed for a moving leaf lock (3') with a second distance dimension (E2).

15. Construction kit according to claim 14, characterized in that the actuating device (12) operates via a gear on the first ejector (13), wherein the gear of the first counter box (8) and the gear of the second counter box (8') are identically designed and identically dimensioned.

Images