EP4512981A1 - Counter-case for a stand wing closure - Google Patents

Abstract

Strike box (8) for a passive leaf lock (7) of a two-leaf door, in particular with a panic function, with a housing (11), an actuating device arranged in or on the housing (11), e.g. B. a lock nut (12) which can be actuated to unlock the passive leaf lock (7), and an ejector (13, 14) which can be extended from the housing (11) in a working direction (A) when the actuating device is actuated and can be pressed against a bolt (5) or a latch (6) of a moving leaf lock (3) opposite the passive leaf lock (7) and in the process presses the bolt (5) or the latch (6) out of the housing (11) of the counter box (8), characterized in that the 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 displaced along the Working direction (A) of the ejector (13, 14) is adjustable.

Description

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

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

In the context of the invention, double-leaf doors are doors that have a so-called active leaf on the one hand and a so-called passive leaf on the other, whereby the passive leaf is closed in 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 panic function, in which at least one handle, e.g. panic handle, or a panic bar is connected to the (rotating) lock nut. By operating the lock nut (e.g. via the panic handle or the panic bar), both an upper locking bar connected to the counter box and a lower locking bar connected to the counter box are moved and preferably retracted towards the counter box and thus unlocked. In the locking position, the locking bars connected to the counter box engage in corresponding locking receptacles, which are arranged, for example, on the top of the door frame or lintel and on the bottom in the floor.

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.

The strike box according to the invention or the passive leaf lock according to the invention is preferably designed for panic activation. For this purpose, one or more ejectors, e.g. a bolt ejector and/or a latch ejector, are integrated into the strike box, which, when the handle or panic bar on the passive leaf is operated, for example, 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 push them back into the housing of the active leaf lock. This ejector function ensures that the opening of the passive leaf in the course of a panic activation is not disrupted by the locking elements of the active leaf engaging in the strike box of the passive leaf lock.

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 e.g. DE 20 2013 001 053 U1 known. By operating 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.

In order to guarantee a perfect panic function in an escape door solution, it must be ensured that the locking elements of the active leaf lock are pushed back sufficiently with the help of the ejectors of the passive leaf lock. In practice, this is problematic when there are different gap dimensions between the front surfaces of the active leaf and the passive leaf and, in particular, different rebate clearance dimensions. When installing the double-leaf door, one generally tries to adjust the gap dimension and the rebate clearance dimension in the desired way. However, this can be complex and not possible with sufficient accuracy using suitable adjusting devices, e.g. in the door hinges. For this reason, solutions have already been proposed with which a "rebate clearance adjustment" can be carried out in the passive leaf lock, so that varying rebate clearance dimensions can be responded to by adjusting the strike box without the need to (re-)adjust the door on the door hinges.

This is how the EP 2 752 539 B2 a fixed leaf lock with a latch ejector and an adapter that can be placed on the latch ejector to compensate for the air gap, so that the front side of the latch ejector can be extended. The adapter is positively connected to the ejector, The form fit is formed by a tenon with a tenon and a tenon receptacle. The adapter itself is designed as a plate and the tenon and the tenon receptacle are embossed. To adjust the rebate clearance, one or more adapters are placed on the latch ejector, thus extending the latch ejector to the desired extent.

Alternatively, in the DE 10 2018 115 985 B4 a strike box is described in which the bolt slide or bolt ejector is designed as a switchable bolt slide that can be switched between a rigid state and a soft state and, when the active sash lock is unlocked, a rebate air switch that precedes the bolt slide switches the bolt slide from rigid to soft when it comes into contact with or during contact with the faceplate of the active sash lock or a door sash faceplate. High unlocking forces are to be transmitted using the rigid bolt slide. Only after the rebate air switch has reached 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 bolt slide switched to soft and can carry out a compensating movement to compensate for differing rebate air dimensions.

In the DE 10 2013 001 818 A1 a counter box with an ejector lever and an ejector tab is described, whereby the ejector tab can be detachably attached to the ejector lever. This is intended to enable the adjustability of the door gap using the already existing components of the ejector tab and the ejector lever, without additional, separate components being required for adjustment. To adjust the door gap, a positive connection is provided between the ejector tab and the ejector lever, in such a way that a pin on the ejector tab can be inserted into various adjustment openings on the ejector lever.

Furthermore, the DE 10 2013 100 275 A1 A strike box with a bolt slide is known, which has a base part and a contact element arranged on the base part, wherein 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 constraints and collisions when the passive leaf and the active leaf are opened at the same time, as the contact element can be pushed back by the sliding bolt against the spring force and can therefore give way.

Overall, rebate clearance compensation or rebate clearance adjustment is particularly important for double-leaf doors, particularly when an escape door is implemented in which there is the option of a panic opening for both the active leaf and the passive leaf. However, the known solutions are complex/disadvantageous in terms of construction, handling and/or costs. - This is where the invention comes in.

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

To achieve this object, the invention teaches in the generic strike box for a passive leaf lock of a two-leaf door of the type described at the beginning that the ejector has a carrier (adjustable via the actuating device for ejection) and a pressure piece arranged on the carrier, which can be adjusted in such a way with the interposition of an adjustment piece is mounted on the carrier in such a way that the pressure piece can be adjusted 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 carrier of the ejector, which in turn is operatively connected to the actuating device in order to actuate the ejector. This is because the adjustment piece according to the invention acts between the pressure piece and the carrier, via which the distance between the front surface of the pressure piece forming the active surface on the one hand and the carrier 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, nor by replacing the pressure piece or other components or adapters, but in a simple manner by adjusting the intermediate adjustment piece, namely in an adjustment direction that is oriented transversely to the working direction and usually parallel to the longitudinal direction of the lock.

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.

For this purpose, the adjustment piece can have an adjustment surface facing the pressure piece and the pressure piece has a counter surface facing the adjustment surface (or a counter element facing the adjustment surface), wherein the adjustment surface and the counter surface (or the counter element) are arranged in such a way 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 adjustment piece (in the adjustment direction).

A first embodiment is characterized by a continuous adjustment and thus a variable adaptation to the door gap size. 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 to the support. The pressure piece is adjusted in the working direction and thus horizontally by the adjustment surface oriented at an angle to this movement surface.

In a second embodiment, the adjustment surface is designed in a step-like manner for a step-like or multi-step adjustment. When adjusting 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 step-like design.

In this second embodiment, the individual steps can be designed in the manner of a catch and thus form catches which can interact with a counter catch arranged (on the back) of the pressure piece for positioning purposes.

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 which is arranged on the back of the pressure piece.

In an alternative embodiment, which is also designed for a step-shaped or multi-stage adjustment, locking elements are provided on the pressure piece (on the back) and corresponding counter-elements on the steps, e.g. Locking receptacles are arranged so that the locking elements engage in the locking receptacles in the 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 be, for example, 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 positions the adjustment piece in a desired height position (or position in the adjustment direction) and thus positions the pressure piece in the desired position along the working direction.

Alternatively or additionally, the adjustment piece can be provided with a profile on the back and/or the carrier 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.

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 effective surface of the pressure piece, which presses against the bolt or latch during the ejection process. The two U-legs surround 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 held on the carrier of the ejector. The U-shaped pressure piece, for example, is therefore held in a predetermined longitudinal position and consequently height position on the carrier, 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 displaced in the adjustment direction both relative to the carrier 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 carrier.

The pressure piece can also be pre-tensioned by the force of a spring against the carrier with the adjustment piece interposed and can therefore be pressed/pulled against the carrier with a spring and thus held on the carrier. For this purpose, the spring, e.g. a leg spring, can be supported on the one hand on the carrier and on the pressure piece on the other hand, e.g. on a rear (hook-like) holding element.

As already mentioned, the adjustment piece can be provided with a profile on the back and/or the carrier 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.

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

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 counter box that has both a latch ejector and a bolt ejector.

In principle, it is possible to adjust the latch ejector and bolt ejector separately to the desired size, independently of one another. In a particularly preferred embodiment, however, the counter box is designed in such a way 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 achieved. 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.

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 adjustment piece of the first ejector and the second adjustment 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 thus a coupling device. Such a connecting device can be a simple, one-piece connecting rod that rigidly couples the first adjustment piece and the second adjustment piece to one another. During the adjustment of the first adjustment piece, the second adjustment piece is then inevitably also moved in the adjustment direction. The connecting rod therefore extends parallel to the adjustment direction.

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, the upper connecting rod being (rigidly) connected to the upper adjustment piece and the lower connecting rod being 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 in such a way that, on the one hand, a force transmission takes place along the adjustment direction, i.e. as the upper rod is adjusted, the lower rod is also moved 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 one another in this working direction, preferably movable relative to one another over a predetermined amount of movement. This can be structurally realized, 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 on the other connecting rod at its end associated with the elongated hole, which engages in the elongated hole with appropriate play.

The design with a freewheel between an upper actuating rod and a lower actuating rod has the advantage that, on the one hand, a perfect and always synchronous adjustment and thus adjustment is possible and, on the other hand, the ejectors can be operated with different kinematics when the lock is in operation. For example, the extension speeds of a latch ejector and a bolt ejector are different, whereby this different speed is compensated by the freewheel between the synchronous 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 given amount of movement, which is defined, for example, by the length of a slot.

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

Known measures can be used independently of this when designing the strike box. Preferably, at least one lock chain is arranged in the housing of the strike box, which can be adjusted in the longitudinal direction of the lock via the actuating device (e.g. the nut), which 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 passive 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, i.e. 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 pulled in in opposite directions in order 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 a spring during unlocking.

To further increase the security against manipulation, the lock chain can be secured with at least one push-back device against manual movement within the housing. This push-back device is also called a bar lock, because by blocking a movement of the lock chain (e.g. the upper and/or lower chain) in the longitudinal direction of the lock, a displacement of the respective locking bar or both locking bars is prevented and consequently locked. For this purpose, separate anti-push-back devices and, optionally, multiple anti-push-back devices can be implemented for the upper chain on the one hand and the lower chain on the other. It is important that by operating the actuating device, e.g. by turning the lock nut (during a panic release), both the locking bars are retracted and the ejector or ejectors are actuated and consequently pushed out of the housing of the strike box in the working direction. For this purpose, the actuating device, e.g. the lock nut, works via a gear or via several gears with one or more gear elements on the lock chain, e.g. on the upper chain and/or on the lower chain and on the ejector or on the several ejectors, e.g. on the bolt ejector and the latch ejector. For example, please refer to the character description.

The push-back protection 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 locking position, the locking lug and locking surface therefore block the lock chain from moving. If the counter box is operated via the actuating device and, for example, a deflection wheel of the deflection device is turned, the push-back protection is also canceled.

An optionally provided deactivation device must be distinguished from the removal of the anti-return device in the course of a panic operation of the strike box. In a variant of the strike box according to the invention, which is particularly useful in conjunction with a motor operation of the lock, the deflection device and/or the lock chain can be equipped with a deactivation device with which the push-back protection can be deactivated, for example, during assembly of the lock (e.g. manually). This option is interesting if the strike box is optionally to be used 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 a motor actuation, for example, moves a locking rod in the longitudinal direction of the lock with the help of a motor and thus unlocks the lock. To do this, it must be ensured that this movement of the locking rod is not blocked by a push-back protection in the strike box. If the strike box is therefore used in combination with a motor, the push-back protection can be deactivated before or during assembly of the lock. The strike box can therefore be used universally with and without a motor.

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

However, the invention also relates to a passive leaf lock for a passive leaf of a two-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, the upper locking bar being connected to an upper bar connection of the strike box and the lower locking bar being connected to a lower bar connection of the strike box.

Finally, the invention also relates to a locking system for a two-leaf door, such a locking system having on the one hand a moving leaf lock and on the other hand a passive leaf lock of the type described with the counter box according to the invention. The moving leaf lock is attached to a moving leaf of the two-leaf door and the passive leaf lock is attached to a passive leaf of the two-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 centre lock of the moving leaf lock can be equipped with a latch and/or a bolt. In particular, a bolt is preferably provided with a release element, e.g. a release lug, which is actuated by the associated ejector in order to cancel any push-back protection provided for the bolt. Known measures can be used here.

Fig. 1

eine Schließanlage für eine zweiflügligen Tür,

Fig. 2

einen erfindungsgemäßen Gegenkasten eines Standflügelverschlusses der Schließanlage nach Fig. 1 in einer ersten Funktionsstellung,

Fig. 3

den Gegenkasten nach Fig. 2 in einer zweiten Funktionsstellung,

Fig. 4a, b

eine erste Ausführungsform eines Auswerfers eines erfindungsgemäßen Gegenkasten in zwei Funktionsstellungen,

Fig. 5a, 5b

eine zweite Ausführungsform eines erfindungsgemäßen Auswerfers in zwei Funktionsstellungen,

Fig. 6a, 6b

eine dritte Ausführungsform eines erfindungsgemäßen Auswerfers in zwei Funktionsstellungen,

Fig. 7

ein Druckstück des Auswerfers nach Fig. 5a, 5b und

Fig. 8

einen Träger des Auswerfers nach Fig. 6a, 6b und

Fig. 9

ein Druckstück des Auswerfers nach Fig. 6a, 6b,

Fig. 10a, b

einen Ausschnitt aus dem Gegenkasten in zwei verschiedenen Funktionsstellungen.

In the following, the invention is explained in more detail with reference to drawings which merely represent exemplary embodiments.

Fig. 1

a locking system for a double-leaf door,

Fig. 2

an inventive strike box of a passive leaf lock of the locking system according to Fig. 1 in a first functional position,

Fig. 3

the counter box Fig. 2 in a second functional position,

Fig. 4a, b

a first embodiment of an ejector of a counter box according to the invention in two functional positions,

Fig. 5a, 5b

a second embodiment of an ejector according to the invention in two functional positions,

Fig. 6a, 6b

a third embodiment of an ejector according to the invention in two functional positions,

Fig. 7

a pressure piece of the ejector after Fig. 5a, 5b and

Fig. 8

a carrier of the ejector Fig. 6a, 6b and

Fig. 9

a pressure piece of the ejector after Fig. 6a, 6b ,

Fig. 10a, b

a section of the counter box in two different functional positions.

In Fig. 1 a locking system for a two-leaf door (with an active leaf 1 and an inactive leaf 2) is shown, which is preferably equipped with a panic function. The locking system has an active leaf lock 3 fastened to the active leaf 1, which has a central lock 4 as locking elements, e.g. a bolt 5 and a latch 6. The locking system also has an inactive leaf lock 7, which is fastened to the inactive leaf 2 of the two-leaf door. The inactive leaf lock 7 has a counter box 8 and an upper locking rod 9a connected to the counter box and a lower locking rod 9b connected to the counter box 8. When locked, the upper locking rod 9a engages with its upper end in a locking receptacle 10a, which is arranged e.g. on the upper door frame. The lower locking rod 9b engages with its lower end in a locking receptacle 10b, which is arranged e.g. B. is integrated into the floor. The counter 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 Fig. 1 shown 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. The function of the strike box 8 is not limited, however, 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 pushed out of the strike box 8 so that the pivoting open 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 embodiment with a first ejector, namely a bolt ejector 13 and a second ejector, namely a latch ejector 14. For this purpose, the Figures 2 and 3 The Fig. 2 shows the counter box 8 in the also in 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 counter box 8. In the course of unlocking the passive leaf lock 7, the lock nut 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 press both the lock latch 5 and the bolt 4 of the active leaf lock 3 out of the counter box 8. This is evident from a comparative Consideration of the Figures 2 and 3 .

For this purpose, the lock nut 12 works via several gear elements on both the upper locking rod 9a and the lower locking rod 9b as well as on the upper ejector 14 and the lower ejector 13. An upper chain 15a which can be moved in the longitudinal direction L of the lock is arranged in the lock housing 11 of the counter box 8 and which forms/has a rod connection 16a for the upper locking rod 9a. In addition, a lower chain 15b which can be moved in the housing 11 and has a rod connection 16b for the lower locking rod 9b is provided.

The lock nut 12 works via one or more gear elements on the upper chain 15a. In the embodiment, the lock nut 12 works via a first deflection wheel 17 and a second deflection wheel 18 on the lock chain 15a, so that in the course of the operation of the lock nut 12 (from Fig. 2 after Fig. 3 ) the upper chain 15a is pushed downwards against the force of a spring 19a and the upper locking rod 9a is thus 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 rod 9b is retracted.

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.

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.

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

According to the invention, the ejector 13, 14 (e.g. the bolt ejector and/or latch ejector) has, 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 adjustment 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 adjustment piece 25 is adjusted in an adjustment direction V oriented transversely to the working direction A.

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

The Figures 4a and 4b show a first embodiment for a stepless rebate adjustment, in which the adjustment surface 27 is designed as a ramp-shaped, inclined adjustment surface. It is oriented at an angle to the adjustment direction, specifically at an angle α. The adjustment piece is fixed in a desired position on the carrier by means of a fixing screw 37.

The Figures 5a and 5b show a second embodiment for a multi-stage and consequently step-shaped adjustment. For this purpose, the adjustment surface 27 of the adjustment piece 25 is designed in a step-shaped manner with several steps 29, which are designed as catches. The pressure piece 24 has a locking element or counter element (e.g. a locking web 36) on the back, so that when the adjustment piece 25 is moved downwards, the pressure piece 24 is locked in the respective position. For this purpose, Fig. 7 In addition, a fixation in one position can be carried out using a fixing screw 37

The Figures 6a and 6b show a third embodiment, which is also designed for a step-shaped and thus multi-stage adjustment, whereby here too a step-shaped adjustment surface 27 with steps 29 is realized. The Here, locking is not achieved 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 with locking elements on the back, 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, the elevations on the adjustment piece and the recesses on the pressure piece can also be arranged the other way round. The elevations and/or depressions can also have a shape other than the spherical shape, e.g. a cone shape, pyramid shape or a roof shape.

The pressure piece 24 is U-shaped in each of the embodiments and is therefore designed with a U-shaped basic shape. The front U-base 24a forms the effective surface 26 of the pressure piece and consequently the effective surface of the ejector, which works against the respective locking element, e.g. against the bolt or latch. The back 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 the adjustment. The two U-legs 24b surround the adjustment piece 25 and serve to guide and/or fasten the pressure piece 24 to the carrier 23. This is because 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. 9 The holding element 31 shown in FIG. 1 may be provided, which in the embodiment engages in a receptacle 39 on the carrier. The pressure piece 24 is also held against the carrier by the force of a spring 40. 23 is pre-tensioned with the adjustment piece 25 interposed. For this purpose, the spring, e.g. 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 the end or be designed as a hook to which the spring engages.

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, 5b This has the locking web 36 on the back, which also forms the counter surface 28, which interacts with the adjustment surface 27. In addition, a (hook-like) holding element 31 is also provided on the pressure piece for securing the pressure piece in a height position on the carrier. In this embodiment, too, the pressure piece is tensioned or pressed against the carrier and thus also against the adjustment piece with a spring 40.

Particularly preferably, the counter 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 9 For example, a design as a latch ejector 13, ie the carrier of the ejector 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 carrier. However, the adjustment options described can be implemented identically for the bolt ejector and the latch ejector.

Furthermore, the Figures 2 and 3 a 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 clearances is carried out 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 by the adjustment piece 25 of the latch ejector 14 and the adjustment piece 25 of the bolt ejector 13 being coupled to one another via a connecting device 32, wherein this connecting device 32 is designed in the embodiment 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 consequently movable relative to one another in the working direction A. This also results from the Figures 2 and 3 .

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. The connecting rods 32a, 32b are connected via the mentioned 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 which engages in the elongated hole 34 to create a freewheel. If, for example, the upper adjusting piece 25 is moved in order 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, namely 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.

During the adjustment, the latch ejector 14 and the bolt ejector 13 are always adjusted synchronously so that an optimal adjustment is achieved. This ensures that the necessary sequence and the distance difference for pushing back the latch 6 and the bolt 5 are maintained and no malfunctions occur.

According to the invention, a simple gap adjustment is therefore possible, both for the latch ejector 14 and for the bolt ejector 13. This always ensures that the lock latch 6 and the bolt 5 are pushed back sufficiently. The adjustment of the correct gap size then no longer has to be carried out in a laborious manner by adjusting the door hinges.

Furthermore, the counter box 8 in the embodiment is preferably equipped with one or more push-back safeguards, which increase the security against manipulation. The push-back safeguards prevent the upper chain and the lower chain from being pushed back by force and consequently displaced, and thus the locking rods from being pulled in by force. Details of this function are not shown.

The structure and functionality of the back pressure protection are described in Fig. 10a shown 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 being pushed down (by force). In the attempt shown to push the upper chain 15a down, it hits the locking lug 42 of the deflection wheel 18. To do this, 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 turned by operating the actuating device and the lock chain 15 or 15a can be pulled down. In this way, Fig. 10a also exemplary recognizable, 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 way, a push-back lock can also be provided for the lower lock chain 15b. This is not shown in the figures.

In an optional design, it is possible to manually deactivate the push-back safety device or rod lock, e.g. 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 by a push-back safety device, the push-back safety device can be deactivated. The Figures 10a and 10b a deactivation device which has a screw 44 with which the rack 43 can be moved. Due to the interaction of the rack 43 with the deflection wheel 18, the deflection wheel 18 is rotated by a certain amount by this deactivation, so that even in the locking position of the counter box the locking lug 42 cannot block the locking surface 41. Fig. 10b consequently shows the locking position of the counter box, but with the rod lock deactivated. To remove the rod lock, screw 44 is screwed in as far as it will go. This allows the upper lock chain 15a to move past the deflection wheel 18 and, in conjunction with a motor, to operate the counter box from above.

The described anti-backflow device can also be implemented in modified embodiments of the rebate air adjustment described as an example in the figures.

Claims (20)

Strike box (8) for a passive 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), which can be actuated to unlock the passive leaf lock (7), and an ejector (13, 14) which can be extended from the housing (11) in a working direction (A) when the actuating device is actuated and can be pressed against a bolt (5) or a latch (6) of a moving leaf lock (3) opposite the inactive leaf lock (7), thereby pressing the bolt (5) or the latch (6) out of the housing (11) of the strike box (8), characterized in that the 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). 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 to one another in such a way that the pressure piece (24) in the course of the adjustment of the adjustment piece (25) is adjusted in the adjustment direction (V) along the working direction (A) of the ejector. Counter box according to claim 2, characterized in that the adjustment surface (27) (for a continuous adjustment) is oriented obliquely to the adjustment direction, e.g. at an angle of 5° to 20°, preferably 7° to 15°. 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 decreasing or increasing distance from a base surface of the adjustment piece (25) in the adjustment direction (V). 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 on the pressure piece or that such locking elements are arranged on the steps (29) and/or on the pressure piece. Counter box according to claim 5, characterized in that elevations (30) as locking elements are arranged on the pressure piece (24) and depressions (38) as locking receptacles are arranged on the steps (29) of the adjusting piece, or vice versa elevations on the steps and depressions 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. 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). Counter box according to one of claims 1 to 7, wherein a first ejector (13) as e.g. bolt ejector (13) for a bolt (5) of the active leaf lock (3) and a second ejector (14) as e.g. latch ejector (14) for a latch (6) of the active leaf lock (3) are arranged in the housing (11),
characterized in that the 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). 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. Counter box according to claim 9, characterized in that the first adjusting piece (25) of the first ejector (13) and the second adjusting piece (25) of the second ejector (14) spaced apart therefrom in the lock longitudinal direction (L) and/or adjusting direction (V) are connected to one another via a connecting device (32) for synchronous adjustment. 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). 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) - movable relative to one another in/along the working direction (A). Strike box according to one of claims 1 to 12, characterized in that at least one lock chain which is adjustable in the lock longitudinal direction (L) via the actuating device (12) is arranged in the housing (11), 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 passive leaf lock can be connected via the upper rod connection (16a) and/or via the lower rod connection (16b). 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), the upper chain (15a) being equipped or connected to an upper rod connection (16a) and the lower chain (15b) being equipped or connected to a lower rod connection (16b). Lock 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 against manual displacement within the housing with at least one push-back protection. Counter box according to one of claims 1 to 15, characterized in that the actuating device, e.g. the lock nut (12), works via at least one deflection device on the lock chain and/or on the ejector, wherein preferably an upper deflection device is provided for the upper chain and a first ejector and a lower deflection device is provided for the lower chain and the lower ejector. Counter box according to claim 15 or 16, characterized in that the deflection device, e.g. a deflection wheel, has a locking nose (41) or locking surface which cooperates with a locking surface (42) or locking nose of the lock chain, e.g. the upper lock chain (15a), to prevent back pressure. Strike 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 an embodiment with optional motor actuation. Inactive leaf lock (7) for an inactive leaf of a two-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. 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) and/or a latch (6), and a fixed leaf lock (7) according to claim 19, which is or can be fixed to a fixed leaf (2).

Images