Counter-case for a stand wing closure

Abstract

Counterbox (8) for a fixed leaf lock (7) of a double-leaf door, in particular with panic function, with a housing (11), an actuating device arranged in or on the housing (11), e.g.a lock nut (12) that can be actuated to unlock the fixed leaf lock (7), and an ejector (13, 14) that, when the actuating device is actuated, can be extended from the housing (11) in a working direction (A) and can be pressed against a bolt (5) or a latch (6) of an active leaf lock (3) opposite the fixed leaf lock (7), thereby pushing the bolt (5) or the latch (6) out of the housing (11) of the counter case (8), characterized in that the ejector (13, 14) has a carrier (23) and a pressure piece (24) arranged on or at the carrier (23), which is mounted on the carrier (23) with an intermediate adjusting piece (25) such that, when the adjusting piece (25) is adjusted in an adjustment direction (V) oriented transversely to the working direction (A), the pressure piece (24) moves along the working direction (A). the ejector (13, 14) is adjustable.

Description

[0001] The invention relates to a strike box, in particular with a panic function, for a passive leaf lock of a double-leaf door, comprising a housing, an actuating device, e.g. a lock follower, which can be actuated to unlock the passive leaf lock, and an ejector which, when the actuating device is actuated, can be extended from the housing in an operating direction (e.g. oriented transversely to the longitudinal direction of the lock) and can be pressed against a bolt or latch of a moving leaf lock opposite the passive leaf lock, thereby pressing the bolt or latch out of the housing and, e.g., back into the housing of the moving leaf lock.

[0002] Furthermore, the invention relates to a passive leaf lock of a double-leaf door 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 therefore remains in its closed 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 toward the strike box, thus unlocking. In the locked position, the locking bars connected to the strike box engage in corresponding locking receptacles, which are located, for example, on the top side of the door frame or lintel and on the bottom side in the floor.

[0004] The active leaf lock arranged in / on the active leaf has one or more locking elements, e.g. a latch and / or 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] Preferably, the strike box according to the invention or the passive leaf lock according to the invention is configured for panic operation. For this purpose, one or more ejectors, e.g., a bolt ejector and / or a latch ejector, are integrated into the strike box. When the handle or panic bar on the passive leaf is actuated, for example, these ejectors push the locking elements of the active leaf engaging in the strike box, e.g., a bolt and / or a latch, out of the strike box and preferably back into the housing of the active leaf lock. This ejector function ensures that the opening of the passive leaf during a panic operation is not disrupted by the locking elements of the active leaf engaging in the strike box of the passive 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 locking 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 a proper panic function in an escape door solution, it is important to ensure that the locking elements of the active leaf are pushed back sufficiently by the ejectors of the passive 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 in particular, differing rebate clearance dimensions. When installing a double-leaf door, one generally attempts to adjust the gap and rebate clearance as desired. However, this can be complex and not possible with sufficient precision using suitable adjustment devices, e.g., in the door hinges.For this reason, solutions have already been proposed that allow for a "rebate clearance adjustment" in the passive leaf lock, so that varying rebate clearance dimensions can be responded to by adjusting the strike box without the need for (re-)adjustment of the door on the door hinges.

[0008] EP 2 752 539 B2 describes a passive leaf lock with a latch ejector and an adapter that can be placed on the latch ejector to compensate for the rebate gap, allowing the front of the latch ejector to be extended. The adapter is connected to the ejector in a form-fitting manner, with the form-fitting connection being formed by a tenon with a pin and a pin receptacle. The adapter itself is designed as a plate, and the pin and pin receptacle are embossed. To adjust the rebate gap, one or more adapters are placed on the latch ejector, thus extending the latch ejector to the desired extent.

[0009] Alternatively, DE 10 2018 115 985 B4 describes a strike box in which the deadbolt slide or deadbolt ejector is designed as a switchable deadbolt slide that can be switched between a rigid state and a soft state. When the active sash lock is unlocked, a rebate air switch that precedes the deadbolt slide switches the deadbolt slide from rigid to soft upon contact with or during contact with the faceplate of the active sash lock or a door leaf faceplate. The rigid deadbolt slide is intended to transmit high unlocking forces. Only after the rebate air switch reaches the lock faceplate, i.e., at a time when the lock bolt has already been largely pushed back into the active sash lock, is the deadbolt slide switched to soft and can perform a compensating movement to compensate for deviating rebate air dimensions.

[0010] DE 10 2013 001 818 A1 describes a striker box with an ejector lever and an ejector tab, wherein the ejector tab can be detachably attached to the ejector lever. This allows the door gap to be adjusted using existing components of the ejector tab and the ejector lever, without the need for additional, separate components for adjustment. To adjust the door gap, a positive connection is provided between the ejector tab and the ejector lever, such that a pin on the ejector tab can be inserted into various adjustment openings on the ejector lever.

[0011] Furthermore, DE 10 2013 100 275 A1 discloses a strike box with a bolt slide. The strike box comprises a base part and a contact element arranged on the base part. The contact element is mounted on the base part so that it can move between two end positions, and a spring applies force to the contact element in the direction of the sliding bolt of the associated lock. This is intended to prevent jamming and collisions when the inactive leaf and the active leaf are opened simultaneously, as the contact element can be pushed back by the sliding bolt against the spring force and can therefore deflect.

[0012] Overall, air gap compensation or air gap adjustment is particularly important for double-leaf doors, especially when an escape door is implemented that offers the option of panic opening for both the active and passive leaves. However, the known solutions are complex / disadvantageous in terms of design, handling, and / or cost. This is where the invention comes in.

[0013] Based on the prior art, the object of the invention is to create a strike box for a passive leaf lock of a double-leaf door, which enables variable rebate adjustment in a simple and reliable manner with an economical and functional design.

[0014] To achieve this object, the invention teaches in the generic strike box for a passive leaf lock of a double-leaf door of the type described at the outset that the ejector has a carrier (adjustable via the actuating device for ejection) and a pressure piece arranged on the carrier, which is mounted on the carrier with the interposition of an adjustment piece in such a way that the pressure piece is adjustable along the working direction of the ejector (and consequently transversely to the longitudinal direction of the lock) when the adjustment piece is adjusted - in an adjustment direction oriented (preferably) transversely to the working direction (e.g. in the longitudinal direction of the lock).The (front) pressure piece of the ejector, which presses against the corresponding bolt or latch of the inactive leaf lock during operation, is therefore not directly and firmly attached to the ejector support, which in turn is operatively connected to the actuating device to actuate the ejector. This is because the adjusting piece according to the invention acts between the pressure piece and support, via which the distance between the front surface of the pressure piece, which forms the active surface, and the support actuated by the actuating device can be adjusted.However, the adjustment of the distance of the effective surface of the pressure piece from the carrier is not carried out by directly adjusting the pressure piece itself along the working direction of the ejector and also not by replacing the pressure piece or other components or adapters, but simply by adjusting the intermediate adjusting piece, in an adjustment direction that is oriented transversely to the working direction and usually parallel to the longitudinal direction of the lock.

[0015] These measures allow the ejector itself to be adapted to the respective rebate clearance without replacing components through a very simple and particularly variable adjustment, so that the respective conditions can be responded to easily, quickly and variably.

[0016] For this purpose, the adjusting piece can have an adjusting surface facing the pressure piece and the pressure piece can have a counter surface facing the adjusting surface (or a counter element facing the adjusting surface), wherein the adjusting surface and the counter surface (or the counter element) are designed and oriented to one another and interact with one another in such a way that the pressure piece is adjusted along the working direction of the ejector during the adjustment of the adjusting piece (in the adjustment direction).

[0017] A first embodiment is characterized by continuous adjustment and thus variable adaptation to the door gap. For this purpose, the adjustment surface is preferably oriented at an angle to the adjustment direction, e.g., at an angle of 2° to 30°, preferably 5° to 20°. The adjustment piece is moved in the adjustment direction, e.g., vertically downwards toward the support. The adjustment surface, oriented at an angle to this movement surface, adjusts the pressure piece in the working direction and thus horizontally.

[0018] In a second embodiment, the adjustment surface is designed in a stepped manner for a step-like or multi-step adjustment. During the adjustment of the adjustment piece on the support in the (vertical) adjustment direction, the pressure piece is adjusted to different extents in the working direction depending on the position of the adjustment piece due to the stepped design.

[0019] In this second embodiment, the individual steps can be designed in a detent-like manner and thus form detents which can interact with a counter-detect arranged (on the rear) on the pressure piece for positioning purposes.

[0020] For this purpose, the individual steps themselves can be designed in a locking manner, for example by having a sawtooth-like design and interacting with a corresponding nose that is arranged on the back of the pressure piece.

[0021] In an alternative embodiment, which is also designed for step-like or multi-step adjustment, locking elements are arranged on the pressure piece (on the back) and corresponding counter-elements, e.g. locking receptacles, are arranged on the steps, so that the locking elements engage in the locking receptacles in the respectively desired position. Alternatively, locking elements can be provided on the steps of the adjustment piece and locking receptacles on the pressure piece. The locking elements can, for example, be elevations, e.g. spherical elevations or alternatively conical elevations or roof-shaped elevations. The locking receptacles are designed to complement the elevations, e.g. as spherical recesses, conical recesses or roof-shaped recesses. The interaction of the locking element and the locking receptacle always ensures that the adjustment piece is held in a desired height position (orPosition in the adjustment direction) and thus positions the pressure piece in the desired position along the working direction.

[0022] Alternatively or additionally, the adjustment piece can be provided with a profile on the back and / or the support can be provided with a (corresponding) profile on the front side facing the adjustment piece, so that improved positioning and / or locking in the desired height position can also be achieved via this profile.

[0023] It is always advantageous to design the pressure piece (optional) in a U-shape so that it has a U-shaped basic form. The (front) U-base forms the active surface of the pressure piece, which presses against the bolt or latch during ejection. The two U-legs encompass the adjustment piece, primarily for guidance. Preferably, the pressure piece is held in a predetermined (height) position in the longitudinal direction of the lock, preferably on the support of the ejector. The pressure piece, which is U-shaped for example, is therefore held in a predetermined longitudinal position and consequently height position on the support, but it is adjustable transversely to the longitudinal direction and consequently in the working direction in the manner described, since the intermediate adjustment piece is moved in the adjustment direction both relative to the support and relative to the pressure piece.For this purpose, the adjustment piece and / or the pressure piece can have one or more (cooperating) holding means with which the pressure piece is held in the predetermined longitudinal position or height position on the support.

[0024] The pressure piece can also be preloaded against the support by the force of a spring with the adjustment piece interposed, and thus be pressed / pulled against the support by a spring and thus held to the support. For this purpose, the spring, e.g., a leg spring, can be supported on one side by the support and on the pressure piece, e.g., by a rear (hook-like) retaining element.

[0025] As already mentioned, the adjustment piece can be provided with a profile on the back and / or the support can be provided with a profile on the front, so that the interaction of these profiles can be used to position and, if necessary, lock it in a desired height position.

[0026] An optional, additional locking of the adjustment piece in the desired position and thus also the fixation of the pressure piece can be achieved using a locking device, e.g., one or more clamping screws for locking the adjustment piece or adjustment slide to the carrier.

[0027] The described embodiments can be implemented both with a first ejector, e.g., a latch ejector, and with a second ejector, e.g., a bolt ejector. The invention is preferably used with a striker box that has both a latch ejector and a bolt ejector.

[0028] In principle, it is possible to adjust the latch ejector and bolt ejector separately to the desired dimension, independently of one another. In a particularly preferred embodiment, however, the counter box is designed so that a synchronous or coupled adjustment of a first ejector and a second ejector, e.g., a bolt ejector and a latch ejector, is always realized. Both the first ejector and the second ejector each have a carrier and a pressure piece arranged on the carrier, which is designed in the manner described. When the respective carrier is adjusted along the adjustment direction, the pressure piece is adjusted in the working direction oriented transversely to the adjustment direction in the manner described.

[0029] It is particularly preferred that the first ejector and the second ejector are coupled to one another in such a way that they are adjusted synchronously during the adjustment. For this purpose, the first adjusting piece of the first ejector and the second adjusting piece of the second ejector, which is spaced apart from it in the longitudinal direction or adjustment direction, can be connected and coupled to one another for synchronous adjustment via a connecting device and consequently a coupling device. Such a connecting device can be a simple, one-piece connecting rod which rigidly couples the first adjusting piece and the second adjusting piece. During the adjustment of the first adjusting piece, the second adjusting piece is then inevitably also displaced in the adjustment direction. The connecting rod therefore extends parallel to the adjustment direction.

[0030] In a particularly preferred embodiment, however, the connecting device is designed in several parts, e.g. from several connecting rods. For example, the connecting device can have a first, upper connecting rod and a second, lower connecting rod, wherein the upper connecting rod is (rigidly) connected to the upper adjustment piece and the lower connecting rod is connected to the lower adjustment piece of the respective ejector. The two connecting rods are coupled to one another at their mutually facing ends, preferably via a freewheel connection. This freewheel connection is designed such that, on the one hand, force is transmitted along the adjustment direction, i.e., during the adjustment of the upper rod, the lower rod is also displaced in the adjustment direction and vice versa. However, in the working direction oriented transversely to the adjustment direction, a freewheel is realized, i.e.The connecting rods are movable relative to each other in this working direction, preferably over a predetermined range of motion. This can be achieved structurally, for example, by providing an elongated hole oriented in the working direction at one end of one of the connecting rods and a pin or bolt at the end of the other connecting rod that is assigned to the elongated hole, which engages in the elongated hole with appropriate play.

[0031] The design with a freewheel between an upper operating rod and a lower operating rod has the advantage that, on the one hand, flawless and always synchronous adjustment and thus alignment is possible, and, on the other hand, the ejectors can be operated with different kinematics during operation of the lock. For example, the extension speeds of a latch ejector and a bolt ejector are different, with this difference in speed being compensated for by the freewheel between the synchronizing rods. The lower connecting rod connected to the lower ejector and the upper connecting rod connected to the upper ejector can therefore be moved independently of one another in the working direction, at least over a predetermined amount of movement that is defined, for example, by the length of an elongated hole.

[0032] Of particular importance within the scope of the invention is the design of the ejectors and the optional coupling.

[0033] Regardless of this, known measures can be used in the design of the strike box. Preferably, at least one lock chain which is adjustable in the longitudinal direction of the lock via the actuating device (e.g. the nut) is arranged in the housing of the strike box and is equipped with or connected to an upper rod connection and / or a lower rod connection, wherein an upper connecting rod and / or a lower connecting rod for locking the inactive leaf lock can be connected or are connected via the upper rod connection and / or the lower rod connection. The lock chain is preferably designed in several parts, ie an upper chain is provided which works on the 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 inactive leaf lock, the upper chain and the lower chain are preferably also moved in opposite directions during the actuation by the operating device. The upper chain and / or the lower chain can be moved against the force of a spring during the unlocking process.

[0034] To further increase security against tampering, the lock chain can be secured with at least one anti-return device to prevent manual movement within the housing. This anti-return device is also referred to as a bar lock because by blocking movement of the lock chain (e.g. the upper and / or lower chain) in the longitudinal direction of the lock, movement of the respective locking bar or both locking bars is also prevented and consequently blocked. For this purpose, separate anti-return devices and optionally multiple anti-return devices can be implemented for the upper chain and the lower chain. It is important that the actuation device, e.g.By turning the lock nut (during a panic release), both the locking bars are retracted and the ejector(s) are actuated and consequently pushed out of the strike box housing in the working direction. To this end, the actuating device, e.g., the lock nut, works 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 ejector(s), e.g., the bolt ejector and the latch ejector. For examples, reference is made to the figure description.

[0035] The anti-return device or bar lock can be implemented, for example, by the deflection device, e.g., a deflection wheel of the deflection device, having a locking lug or locking surface that interacts with a locking surface or locking lug of the lock chain, e.g., the upper lock chain and / or the lower lock chain. In the locked position, the locking lug and locking surface thus prevent the lock chain from moving. If the strike box is actuated via the actuating device and, for example, a deflection wheel of the deflection device is turned, the anti-return device is also deactivated.

[0036] An optionally provided deactivation device must be distinguished from the removal of the anti-backlash device during a panic operation of the strike box. In one variant of the strike box according to the invention, which is particularly useful in conjunction with motor operation of the lock, the deflection device and / or the lock chain can be equipped with a deactivation device with which the anti-backlash device can be deactivated, for example, during assembly of the lock (e.g. manually). This option is interesting if the strike box is also to be used optionally in combination with a motor, so that, for example, an additional actuation motor is provided for a motor-operated opening of the passive leaf lock. This is because motor operation, for example, moves a locking rod in the longitudinal direction of the lock with the help of a motor, thus unlocking the lock.To do this, it must be ensured that this movement of the locking bar is not blocked by a backlash device in the strike box. Therefore, if the strike box is used in combination with a motor, the backlash device can be deactivated before or during installation of the lock. The strike box is therefore universally applicable, with or without a motor.

[0037] The focus of the invention is the described strike box, which is a component of a passive leaf lock.

[0038] 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. In addition, the passive leaf lock has at least one locking bar, preferably an upper locking bar and a lower locking 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.

[0039] Finally, the invention also relates to a locking system for a double-leaf door, such a locking system comprising, on the one hand, a moving leaf lock and, on the other hand, a fixed leaf lock of the type described, with the strike box according to the invention. The moving leaf lock is attached to a moving leaf of the double-leaf door, and the fixed leaf lock is attached to a fixed 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 center lock of the moving leaf lock can be equipped with a latch and / or a bolt. Particularly in the case of a bolt, a release element, e.g., a release lug, is preferably provided, which is actuated by the associated ejector to cancel any provided anti-return device for the bolt.Known measures can be used for this purpose.

[0040] The invention will be explained in more detail below with reference to drawings which merely represent exemplary embodiments. Fig. 1 a locking system for a double-leaf door, Fig. 2 a strike box according to the invention of a passive leaf lock of the locking system according to Fig. 1 in a first functional position, Fig. 3 the counter box according Fig. 2 in a second functional position, Fig. 4a, b shows a first embodiment of an ejector of a counter box according to the invention in two functional positions, Fig. 5a, 5b shows a second embodiment of an ejector according to the invention in two functional positions, Fig. 6a, 6b shows a third embodiment of an ejector according to the invention in two functional positions, Fig. 7 shows a pressure piece of the ejector according to Fig. 5a, 5b and Fig. 8 a carrier of the ejector according to Fig. 6a, 6b and Fig. 9 a pressure piece of the ejector according to Fig. 6a, 6b, Fig. 10a, section of the counter box in two different functional positions.

[0041] 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, for example, 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 and a lower locking 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 arranged, for example, on the upper door frame.is 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, e.g. 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 reliable and safe panic operation, it must 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 counter box 8 is provided with at least one ejector 13, 14 and, in the exemplary embodiment, with a first ejector, namely a bolt ejector 13, and a second ejector, namely a latch ejector 14. For this purpose, reference is made to the . Figures 2 and 3 referred to. The Fig. 2 shows the counter box 8 in the Fig. 1 shown locked functional position. It can be seen that the locking elements, namely the latch 6 and the bolt 5 of the active leaf lock 3, engage in the strike box 8. During the unlocking of the passive leaf lock 7, the lock follower 12 is rotated and thus the locking rods 9a, 9b are 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. This results from a comparative analysis of the Figures 2 and 3 .

[0042] For this purpose, the lock nut 12 operates via several gear elements on both the upper locking bar 9a and the lower locking bar 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 strike box 8, which is displaceable in the lock's longitudinal direction L and forms / has a rod connection 16a for the upper locking bar 9a. Furthermore, a lower chain 15b is provided, which is displaceable in the housing 11 and has a rod connection 16b for the lower locking bar 9b.

[0043] 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 first deflection wheel 17 and a second deflection wheel 18 on the lock chain 15a, so that in the course of actuation of the lock nut 12 (from Fig. 2 after Fig. 3) the upper chain 15a is moved downwards against the force of a spring 19a and thus the upper locking rod 9a is retracted. Furthermore, the lock nut 12 works via a nut arm 20 on a deflection lever 21, which is coupled to the lower chain 15b, so that in the course of the operation of the lock nut 12 from Fig. 2 after Fig. 3 By pivoting the reversing lever 21, the lower lock chain 15b is moved upwards against the force of a spring 19b and thus the lower locking bar 9b is retracted.

[0044] In addition, the lock nut 12 works via at least one of the deflection wheels, e.g. via the first deflection wheel 17 on the upper ejector 14 and consequently on the latch ejector 14, so that in the course of the rotation of the lock nut 12 of Fig. 2 after Fig. 3 the ejector 14 is pushed out of the housing 11 in the working direction A.

[0045] The lock nut 12 is operatively connected to the lower ejector / bolt ejector 13 via a further gear element, namely a drive lever 22. During the rotation of the lock nut 12 from Fig. 2 after Fig. 3 the drive lever 22 is pivoted and the lower bolt ejector 13 is pushed out of the lock housing 11 in the working direction A.

[0046] For secure operation of the locking system and for reliable panic release of the inactive leaf lock 7, it is important that both the latch 6 and the bolt 5 are pushed back sufficiently via the bolt ejector 13 and the latch ejector 14. The inactive leaf lock 7 according to the invention is characterized by an optimized adjustment option, so that the inactive leaf lock 7 can be adapted in particular to varying rebate clearances F. For this purpose, the Figures 4a, 4b to 9 referred to.

[0047] According to the invention, the ejector 13, 14 (e.g. the bolt ejector and / or latch ejector) comprises, on the one hand, a carrier 23 and, on the other hand, a pressure piece 24 arranged on the carrier 23, which is mounted on the carrier 23 with the interposition of an adjusting piece 25, in such a way that the pressure piece 24 is adjusted along the working direction A of the ejector 13, 14 when the adjusting piece 25 is adjusted in an adjustment direction V oriented transversely to the working direction A.

[0048] This shows the Figures 4a and 4b two different adjustment positions. Fig. 4a shows a first adjustment position for a relatively small air gap F. With an increased air gap F, the ejector 13, 14 can be adjusted in the Fig. 4b It can be seen that starting from the functional position according to Fig. 4athe adjusting piece 25 is moved downwards in the lock longitudinal direction L and consequently in the adjusting direction V. The pressure piece 24, which has the active surface 26 for the ejector function, is thus adjusted in the working direction A so that an adaptation to an increased rebate clearance takes place. For this purpose, the adjusting piece 25 has an adjusting surface 27 facing the pressure piece 24 and the pressure piece 24 has a counter surface 28 facing the adjusting surface 27, wherein the adjusting surface 27 and the counter surface 28 are designed and oriented relative to one another in such a way that the pressure piece 24 is adjusted along or parallel to the working direction A of the ejector 13, 14 during the adjustment of the adjusting piece 25 in the adjusting direction V.

[0049] The Figures 4a and 4bshow a first embodiment for a continuous rebate clearance adjustment, in which the adjustment surface 27 is designed as a ramp-shaped, inclined adjustment surface. It is oriented obliquely to the adjustment direction, specifically at an angle α. The adjustment piece is fixed in a desired position on the support by means of a fixing screw 37.

[0050] The Figures 5a and 5b show a second embodiment for a multi-stage and thus step-like adjustment. For this purpose, the adjustment surface 27 of the adjustment piece 25 is designed in a step-like manner with several steps 29, which are designed as detents. The pressure piece 24 has a locking element or counter-element (e.g., a locking web 36) on the rear side, so that during the downward displacement of the adjustment piece 25, the pressure piece 24 is locked in the respective position. For this purpose, Fig. 7 In addition, fixation in one position can be achieved using a fixing screw 37

[0051] The Figures 6a and 6bshow a third embodiment, which is also designed for a step-shaped and therefore multi-stage adjustment, wherein here too a step-shaped adjustment surface 27 with steps 29 is realized. The locking here does not take place via the step shape itself, but via (additional) locking elements 30 that engage in corresponding locking receptacles 38. For this purpose, in the exemplary embodiment, the pressure piece is provided on the back with locking elements, which are designed as elevations 30, e.g. as spherical or hemispherical elevations 30. Corresponding recesses are incorporated into the steps as locking receptacles 38, e.g. hemispherical recesses 38, so that the elevations 30 engage in the recesses 38 in the respective position and thus position and lock the adjustment piece 25. As an alternative to the exemplary embodiment shown, however, the elevations can also be arranged on the adjustment piece and the recesses on the pressure piece the other way around.The elevations and / or depressions may also have a shape other than spherical, such as a cone shape, pyramid shape or roof shape.

[0052] The pressure piece 24 is U-shaped in each of the exemplary embodiments and thus has a U-shaped basic form. The front U-base 24a forms the active surface 26 of the pressure piece and consequently the active surface of the ejector, which works against the respective locking element, e.g. against a bolt or latch. The rear side of this U-base forms or carries the counter surface 28 (or a counter element), which interacts with the adjustment surface 27 of the adjustment piece 25 during adjustment. The two U-legs 24b encompass the adjustment piece 25 and serve to guide and / or fasten the pressure piece 24 to the carrier 23. It is important that the pressure piece 24 can be adjusted in / along the working direction A, but is fixed in a certain height position and consequently a position along the longitudinal direction L and adjustment direction V. As an example, the Fig. 9The holding element 31 shown may be provided, which in the exemplary embodiment engages in a receptacle 39 on the carrier. The pressure piece 24 is also preloaded against the carrier 23 by the force of a spring 40 with the interposition of the adjusting piece 25. For this purpose, the spring, e.g., a leg spring, is supported on the one hand on the carrier 23 and on the other hand on the pressure piece, e.g., on the holding element 31. For this purpose, the holding element 31 can have a hook at its end or be designed as a hook onto which the spring engages.

[0053] While the Fig. 9 the pressure piece 24 according to Figures 6a, 6b shows is in Fig. 7 the pressure piece 24 according to Figures 5a, 5bThis has the locking web 36 on the rear, which also forms the counter surface 28 that interacts with the adjustment surface 27. Furthermore, a (hook-like) retaining element 31 is also provided on the pressure piece for securing the pressure piece in a specific height position on the support. In this embodiment, too, the pressure piece is tensioned or pressed against the support and thus also against the adjustment piece by a spring 40.

[0054] Particularly preferably, the striker box 7 has two ejectors, namely the latch ejector 14 and the bolt ejector 13. The figures show an example of a possible ejector, which can be used both as a latch ejector and as a bolt ejector in the same or in a modified form. With reference to the lock according to Figures 2 and 3 show the Figures 4a, 4b to 9For example, a design as a latch ejector 13 is shown, i.e., the ejector support is adapted for coupling to the upper gear unit for actuating the latch ejector. The bolt ejector is adapted to the respective gear design in the area of ​​the support. However, the adjustment options described can be implemented identically for both the bolt ejector and the latch ejector.

[0055] Furthermore, the Figures 2 and 3a particularly preferred embodiment for a synchronous adjustment of the bolt ejector 13 and the latch ejector 14, i.e. the adjustment and consequently adaptation to different rebate clearance dimensions takes place synchronously for the latch ejector 14 and the bolt ejector 13. For this purpose, the bolt ejector 13 and the latch ejector 14 are coupled to one another in such a way that they are adjusted synchronously during the adjustment. This is achieved in that the adjusting piece 25 of the latch ejector 14 and the adjusting piece 25 of the bolt ejector 13 are coupled to one another via a connecting device 32, wherein this connecting device 32 in the exemplary embodiment is designed as a multi-part connecting device with an upper connecting rod 32a and a lower connecting rod 32b. The upper connecting rod 32a and the lower connecting rod 32b are connected to one another via a freewheel connection 33 and are consequently movable relative to one another in the working direction A.This also follows from the . Figures 2 and 3 .

[0056] The upper connecting rod 32a is rigidly connected to the adjusting piece 25 of the upper ejector 14, and the lower connecting rod 32b is rigidly connected to the adjusting piece 25 of the lower ejector 13. However, the connecting rods 32a, 32b are connected via the aforementioned freewheel connection 33. For this purpose, the lower end of the upper connecting rod 32a is provided with an elongated hole 34, and the upper end of the lower connecting rod 32b has a bolt 35 that engages in the elongated hole 34, creating a freewheel. If, for example, the upper adjusting piece 25 is moved to adjust the upper ejector 14, the lower adjusting piece 25 is also moved at the same time, and thus the lower ejector 13 is adjusted synchronously, by the same distance.However, since the extension speeds of the latch ejector 14 and the bolt ejector 13 are different during operation and consequently during a panic release, the freewheel 33 is provided between the connecting rods 32a, 32b.

[0057] During adjustment, the latch ejector 14 and the bolt ejector 13 are always adjusted synchronously, ensuring optimal adjustment. This maintains the necessary sequence and distance difference for pushing back the latch 6 and the bolt 5, preventing malfunctions.

[0058] According to the invention, a simple adjustment of the gap is therefore possible, both for the latch ejector 14 and the bolt ejector 13. This always ensures that the lock latch 6 and the bolt 5 are pushed back sufficiently. Adjusting the correct gap size no longer requires laborious adjustment of the door hinges.

[0059] Furthermore, in the exemplary embodiment, the strike box 8 is preferably equipped with one or more anti-return devices, which increase tamper security. The anti-return devices prevent the upper and lower chains from being forced back and subsequently displaced, thus preventing the locking bars from being forcibly retracted. Details of this function are not shown.

[0060] The structure and function of the back pressure protection are described in Fig. 10ashown as an example for the upper lock chain 15a. The locked position of the counter box is shown, in which the deflection wheel 18 with a locking lug 42 locks the upper lock chain 15a against (forced) downward pushing. During the illustrated attempt to push the upper chain 15a down, it strikes the locking lug 42 of the deflection wheel 18. For this purpose, the locking lug 42 interacts with a locking surface 41 on the upper lock chain 15a. Nevertheless, during the unlocking process, the deflection wheel 18 can be rotated by actuating the actuating device and thus the lock chain 15 or 15a can be pulled downwards. Fig. 10aIt can also be seen, for example, that the deflection device, e.g., the deflection wheel 18, is coupled to the upper lock chain 15a via a rack 43. The rack 43 can optionally be a freewheel rack. In the same or similar manner, a push-back lock can also be provided for the lower lock chain 15b. This is not shown in the figures.

[0061] In an optional configuration, it is possible to manually deactivate the anti-return device or rod lock, for example, for the upper lock chain 15a. This is useful, for example, if the drive rod lock of the passive leaf is also motor-operated. For this purpose, a motor (not shown) can be provided for the upper locking rod 9a, so that the locking rod 9a can also be moved and thus unlocked by motor operation. In order not to hinder such motor operation with a anti-return device, the anti-return device can be deactivated. For this purpose, the Figures 10a and 10ba deactivation device comprising a screw 44 with which the rack 43 can be displaced. Due to the interaction of the rack 43 with the deflection wheel 18, this deactivation causes the deflection wheel 18 to rotate by a certain amount, so that even in the locking position of the counter box, the locking lug 42 cannot block the locking surface 41. Fig. 10b shows the locking position of the strike box, but with the bar lock deactivated. To release the bar lock, screw 44 is screwed in fully. This allows the upper lock chain 15a to move past the deflection wheel 18 and, in conjunction with a motor, to operate the strike box from above.

[0062] The described push-back protection can also be implemented with modified embodiments of the rebate air adjustment described as an example in the figures.

Claims

1. Strike box (8) for a passive leaf lock (7) of a double-leaf door, in particular with a panic function, comprising a housing (11), an actuating device arranged in or on the housing (11), e.g. a lock follower (12), which can be actuated to unlock the passive leaf lock (7), and an ejector (13, 14) which, upon actuation of the actuating device, can be extended from the housing (11) in an operating direction (A) and can be pressed against a bolt (5) or a latch (6) of a moving leaf lock (3) opposite the passive leaf lock (7), thereby pressing the bolt (5) or the latch (6) out of the housing (11) of the strike box (8). characterized in thatthe ejector (13, 14) has a carrier (23) and a pressure piece (24) arranged on or on the carrier (23), which is mounted on the carrier (23) with the interposition of an adjustment piece (25) in such a way that the pressure piece (24) is adjustable along the working direction (A) of the ejector (13, 14) when the adjustment piece (25) is adjusted in an adjustment direction (V) oriented, for example, transversely to the working direction (A).

2. Counter box according to claim 1, characterized in that the adjusting piece (23) has an adjusting surface (27) facing the pressure piece (24) and the pressure piece (24) has a counter-surface (28) facing the adjusting surface (27) or a counter-element, wherein the adjusting surface (27) and the counter-surface (28) or the counter-element are designed and oriented relative to one another in such a way that the pressure piece (24) is adjusted in the adjustment direction (V) along the working direction (A) of the ejector during the adjustment of the adjusting piece (25).

3. Counter box according to claim 2, characterized in that the adjustment surface (27) (for stepless adjustment) is oriented obliquely to the adjustment direction, e.g. at an angle of 5° to 20°, preferably 7° to 15°.

4. Counter box according to claim 2, characterized in that the adjustment surface (27) (for a multi-stage adjustment) is designed in a step-like manner with a plurality of steps (29) which are arranged at a distance from a base surface of the adjustment piece (25) which decreases or increases in the adjustment direction (V).

5. Counter box according to claim 4, characterized in that the steps (29) are simultaneously designed as locking elements or locking receptacles for locking the adjusting piece to the pressure piece or that such locking elements are arranged on the steps (29) and / or on the pressure piece.

6. Counter box according to claim 5, characterized in thatelevations (30) are arranged on the pressure piece (24) as locking elements and depressions (38) are arranged on the steps (29) of the adjusting piece as locking receptacles or conversely elevations are arranged on the steps and depressions are arranged on the pressure piece, wherein the elevations (30) engage in the depressions (38) in a predetermined position and thus lock the adjusting piece (25) in a desired position.

7. Counter box according to one of claims 1 to 6, characterized in that the pressure piece (24) is tensioned against the carrier (23) by at least one spring (40) with the interposition of the adjusting piece (25).

8. Strike box according to one of claims 1 to 7, wherein a first ejector (13) as, for example, a bolt ejector (13) for a bolt (5) of the active leaf lock (3) and a second ejector (14) as, for example, a latch ejector (14) for a latch (6) of the active leaf lock (3) are arranged in the housing (11), characterized in thatthe first ejector (13) and the second ejector (14) each have a carrier (23) and a pressure piece (24) arranged on the carrier, which is mounted on the carrier (23) with an interposition of an adjustment piece (25) in such a way that the respective pressure piece (24) is adjustable along the working direction (A) of the respective ejector (13, 14) when the adjustment piece (25) is adjusted in an adjustment direction (V) oriented transversely to the working direction (A).

9. Counter box according to claim 8, characterized in that the first ejector (13) and the second ejector (14) are coupled to one another in such a way that they are adjusted synchronously during the adjustment.

10. Counter box according to claim 9, characterized in thatthe first adjusting piece (25) of the first ejector (13) and the second adjusting piece (25) of the second ejector (14), which is spaced apart from it in the lock longitudinal direction (L) and / or adjusting direction (V), are connected to one another via a connecting device (32) for synchronous adjustment.

11. Counter box according to claim 10, characterized in that the connecting device (32) is designed as a one-part connecting rod or as a multi-part connecting device with several connecting rods (32a, 32b).

12. Counter box according to claim 11, characterized in that the connecting device (32) has at least a first, e.g. upper, connecting rod (32a) and a second, e.g. lower, connecting rod (32b), which are connected to one another via a freewheel connection (33) so as to be movable relative to one another in / along the working direction (A).

13. Counter box according to one of claims 1 to 12, characterized in thatin the housing (11) at least one lock chain is arranged which is adjustable in the lock longitudinal direction (L) via the actuating device (12) and which is equipped with or connected to an upper rod connection (16a) and / or a lower rod connection (16b), wherein an upper locking rod (9a) and / or a lower locking rod (9b) for locking the inactive leaf lock can be connected via the upper rod connection (16a) and / or the lower rod connection (16b).

14. Counter box according to claim 13, characterized in that the lock chain is designed in several parts and is formed, for example, by an upper chain (15a) and a lower chain (15b) which are arranged in the lock housing (11) so as to be displaceable in opposite directions via the actuating device (12), wherein the upper chain (15a) is equipped or connected to an upper rod connection (16a) and the lower chain (15b) is equipped or connected to a lower rod connection (16b).

15. Counter box according to claim 13 or 14, characterized in that the lock chain, e.g. the upper chain (15a) and / or the lower chain (15b) (each) are secured with at least one push-back device against manual displacement within the housing.

16. Counter box according to one of claims 1 to 15, characterized in that the actuating device, e.g. the lock nut (12), operates via at least one deflection device on the lock chain and / or on the ejector, wherein preferably an upper deflection device for the upper chain and a first ejector and a lower deflection device for the lower chain and the lower ejector are provided.

17. Counter box according to claim 15 or 16, characterized in that the deflection device, e.g. a deflection wheel, has a locking lug (41) or locking surface which cooperates with a locking surface (42) or locking lug of the lock chain, e.g. the upper lock chain (15a), to prevent back pressure.

18. Counter box according to one of claims 15 to 17, characterized in that the deflection device and / or the lock chain, e.g. the upper chain, is equipped with a deactivation device with which the push-back protection can be deactivated, e.g. for a design with optional motor actuation.

19. Inactive leaf lock (7) for an inactive leaf of a double-leaf door, with a strike box (8) fastened to a lock face (S) according to one of claims 1 to 18 and preferably with an upper locking bar (9a) and / or a lower locking bar (9b) for locking the inactive leaf lock.

20. Locking system for a double-leaf door, with a moving leaf lock (3) attached or attachable to a moving leaf (1) and having at least one bolt (5) and / or a latch (6), and a moving leaf lock (7) attached or attachable to a fixed leaf (2) according to claim 19.

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