Locking device, door arrangement having such locking device, and method for mounting such locking device

Abstract

The invention relates to a locking device (10) having a lock housing (12), a drive device (14) fastened thereto, and at least one drive lever (21, 22) extending in a longitudinal direction (20), the drive lever (21, 22) being drivable by means of the drive device (14) and displaceable in the longitudinal direction (20) when driven by means of the drive device (14), a coupling device (25) for coupling the drive bolt (26, 27) is fastened to each of the drive bolts (26, 27), the coupling device (25) having a receptacle (30) into which the drive bolt (26, 27) can be introduced by means of an end section (26 '), and the coupling device (25) and the drive bolt (26, 27) are configured in such a way that the drive bolt (26, 27) is coupled to the coupling device (25) by locking when the end section (26') is introduced into the receptacle (30). The invention relates to a door arrangement (200) and to a method for mounting a locking device (10) on a door arrangement (200).

Description

Technical Field

[0001] The invention relates to a locking device for a door leaf of a door arrangement having the features of the preamble of claim 1. The invention also relates to a door arrangement having the features of the parallel claim, having a frame and at least one door leaf pivotably mounted on the frame. Background Art

[0002] Locking devices of the type mentioned at the outset are known from the prior art, for example from EP 3 748 109 A1. There is disclosed a locking device having a lock housing, a main lock fastened to the lock housing and a plurality of secondary locks fastened to the lock housing, which are coupled to the main lock via drive rods. This allows safe and reliable locking to be achieved. The installation on the door leaf is usually carried out with the aid of a completely preassembled locking device. This places corresponding demands on the milling grooves in the door leaf. For maintenance or replacement of the lock parts, the locking device needs to be disassembled and, if necessary, at least partially dismantled.

[0003] EP 3 045 624 A1 discloses a lock with a bolt element which can be mounted at a door leaf, wherein the bolt element can be operated via a lock mechanism. The lock also has an interface for connecting a drive bolt device to a bolt rod. The interface has a connecting element connected to the lock mechanism and an opening arranged in a lock housing of the lock, wherein when the drive bolt device is connected, a transmission element passes through the opening and is connected to the connecting element. In order to disconnect the drive bolt device from the lock, disassembly is required. Summary of the invention

[0004] The purpose that the present invention is based on is to make the installation and maintenance of the locking device easy. It is particularly desirable that one or more drive bolts can be coupled to the drive device of the locking device in a simple manner and decoupled when necessary.

[0005] The invention achieves this object by a locking device having the features of claim 1 .

[0006] The locking device is configured and / or determined for a door leaf of a door arrangement. The locking device has a lock housing, a drive device fastened to the lock housing, and at least one drive rod extending in a longitudinal direction (longitudinal direction of the lock housing or longitudinal direction of the drive rod). The at least one drive rod can be driven by means of the drive device and can be displaced in the longitudinal direction when driven by means of the drive device.

[0007] A coupling device for coupling the drive tongue is fastened to at least one drive rod. The coupling devices each have a receiving portion into which the drive tongue can be introduced by means of an end section. The coupling device and the drive tongue are respectively configured so that when the end section is introduced into the receiving portion, the drive tongue is coupled to the coupling device by locking or fastened to the coupling device. In other words, when the end section is pushed into the receiving portion, the drive tongue is locked at the coupling device or with the coupling device (a positive connection in the form of a locked connection is established).

[0008] The proposed locking device makes it possible to automatically couple or connect the drive tongue at or with the coupling device, without screwing or having to pay attention to other installation steps. The coupling is carried out by simply plugging the drive tongue and the coupling device together. Due to the simple installation, it is possible to reduce the installation time. Due to the relatively simple movement of the coupling (introduction or plugging together), the installation of the locking device can be significantly more easily automated.

[0009] The receptacle into which the drive latch can be introduced by means of the end section is open in the longitudinal direction, preferably only in the longitudinal direction, in particular facing away from the drive device.

[0010] In a preferred embodiment, the coupling device can be configured so that the drive tongue can be reversibly disconnected at the coupling device or from the coupling device. In other words, the drive tongue can be reversibly disconnected from the coupling device after being locked at the coupling device or from the coupling device. This facilitates the disassembly or maintenance of one or more drive tongues.

[0011] Advantageously, the coupling device can have a housing, in which a locking element is movably supported for coupling a drive tongue, wherein the locking element can be displaced between a coupling position and a release position, in which the locking element is engaged in a receiving portion along a displacement direction for coupling with the drive tongue, and in the release position, the locking element releases the receiving portion for decoupling the drive tongue (the locking element is at least partially or completely displaced away from the receiving portion in the release position). A structurally simple and stable coupling of the drive tongue at the coupling device can be achieved by the locking element. If the end section or introduction section of the drive tongue is introduced or inserted into the receiving portion, the locking element can be introduced into the coupling position. The locking element can then be engaged in an opening formed in the end section of the drive tongue or in the through-through formed therein for coupling the drive tongue.

[0012] Specifically, the displaceable displacement direction of the locking element is oriented perpendicular to the longitudinal direction, along which the at least one drive rod extends. Independently of this, the coupling device is preferably configured so that the locking element is displaced toward the drive rod in the release position and / or is displaced away from the drive rod in the coupling position. In other words, the locking element is further away from the drive rod in the coupling position than in the release position.

[0013] The locking element can be preloaded into the coupling position by means of a spring element, in particular by means of a preferably helical compression spring, i.e., preloaded in particular away from the drive rod. Thus, the locking element is reliably held in the coupling position. In addition, the automatic locking or locking of the drive tongue at the coupling device becomes advantageous. A spring receiving portion or a spring receiving section can be formed in the housing of the coupling device for arranging the spring element. The spring element can be fastened at one end to the locking element and supported at the housing section or the drive rod at the other end, and the coupling device is fastened at the drive rod.

[0014] In a preferred embodiment, the locking element can have an introduction chamfer, so that by introducing the end section of the drive latch into the recess, the locking element can be displaced from the coupling position in the direction of the release position. This facilitates the automatic coupling of the drive latch at the coupling device. In this way, the locking element can be lifted from the coupling position by introducing or pushing in the end section of the drive rod.

[0015] Advantageously, the locking element can have a first profile feature at its distal end (towards the receiving portion of the coupling device), wherein the receiving portion can have a second profile feature corresponding to the first profile feature, in particular complementary, wherein the first profile feature and the second profile feature engage with each other when the locking element is located in the coupling device. Thus, "anti-tilting" can be achieved, because by engaging the first profile feature and the second profile feature, "tilting" of the locking element when the drive lock tongue is introduced and / or pulled out can be prevented as much as possible. The first profile feature (locking element) can be configured as a recess, which has a wall section on the edge side that protrudes from the recess. The second profile feature can be configured as a protrusion, which has a recess on the edge side, for example in a U-shape.

[0016] Suitably, the locking element can have a threaded section at its near end (towards the drive rod) and the drive rod and / or the lock housing can have a through-hole aligned with the threaded section, so that an operating element with a matching threaded section corresponding to the threaded section can be guided through the through-hole and coupled to the threaded section. This allows the locking element to be operated "from the outside" through the drive rod and / or the lock housing. Thus, the locking element can be operated (through the lock housing and / or the drive rod) by means of the coupled operating element, for example, from a coupling position to a release position. This allows the drive bolt to be decoupled or removed when the locking device is at the door device or in the door device (without the need to remove or disassemble the locking device).

[0017] Specifically, the threaded section can be formed as a hole with an internal thread and / or the operating element with the mating threaded section can be formed as a bolt with an external thread. This helps to couple the operating element to the locking element in a compact, structurally simple and stable manner.

[0018] Preferably, a hole with an internal thread can be formed in a bolt-shaped section, preferably protruding from the locking element, wherein the spring element surrounds the bolt-shaped section. This allows a particularly compact arrangement of the spring element, in particular the compression spring, and the hole with an internal thread. Thus, a screw with an external thread can be guided through the free interior space ("eye") of the spring element and screwed into the hole with an internal thread.

[0019] Specifically, the locking element can have a cross section, which is bounded by two opposite, preferably parallel flat sides and two opposite narrow sides connecting the flat sides, wherein the narrow side has a rounded profile. This helps the locking element to be supported in the housing of the coupling device in an improved manner, wherein the housing can be configured to have a relatively small wall strength. The rounded profile of the narrow side can be configured in particular in an arcuate or semicircular manner, respectively. A locking element guide opening can be configured in the housing of the coupling device, which has a cross section complementary to the locking element at least in sections. A spring receiving section for a spring element can be configured in the flat side of the locking element guide opening.

[0020] In the scope of a preferred embodiment, the receiving portion can be arranged at the coupling device so that the drive lock tongue coupled to the coupling device is arranged staggered away from the drive rod at the side of the drive rod facing away from the lock housing. This allows the drive lock tongue to be arranged staggered relative to the drive rod or the lock housing. As a result, a hidden arrangement of the drive lock tongue is possible (the drive lock tongue is placed inside the door leaf, for example in a laterally closed and end-open drive lock tongue channel in the door leaf).

[0021] Suitably, the housing of the coupling device can have a flange section for fastening the coupling device to the drive rod, in particular by riveting or screwing. This allows a structurally simple and stable fastening of the coupling device to the drive rod.

[0022] Advantageously, the driving bolt can have an end section (insertion section), a connecting section and / or a bolt section. The end section (insertion section) is used to couple the driving bolt to the coupling device. The bolt section is used to engage with the door frame in a locking manner (the bolt section extends from the leaf or door leaf at the upper side) or to engage with the ground in a locking manner (the bolt section extends from the leaf or door leaf at the lower side). The bolt section can have a thickness greater than the end section and / or the connecting section. The connecting section is located between the end section (insertion section) and the bolt section and connects the end section to the bolt section. One or more recesses or through-holes can be formed in the end section (insertion section) for engaging with the locking element.

[0023] The bolt section and the connecting section can each have a (corresponding) toothing, by means of which the two sections can be coupled to each other or coupled to each other. This contributes to a particularly stable coupling of the bolt section and the connecting section. Alternatively, the bolt section and the connecting section can be configured so that they can be coupled to each other in different axial overlaps. This allows the length setting of the drive bolt to be achieved in that the bolt section and the connecting section can be coupled by means of different (axial) overlaps. Alternatively to this, the bolt section and the connecting section can be firmly connected to each other, for example riveted.

[0024] Within the scope of one possible embodiment, the drive device which drives the at least one drive rod can be an electric motor drive.

[0025] It is also conceivable that the drive device is designed as a mortise lock with one or more locking tongue elements (lock catch and / or locking tongue), wherein the mortise lock has a lock nut and / or a locking cylinder and the lock drive of the mortise lock can be operated via at least one or both of these components. When the lock drive is driven, one or more drive rods are also driven. The mortise lock can be arranged (so to speak "active lock") at the active door leaf (passage door leaf).

[0026] The drive device can also be configured as a passive lock with a lock catch receiving portion and / or a lock tongue receiving portion, wherein the lock catch receiving portion and / or the lock tongue receiving portion are preferably equipped with a lock catch ejector and / or a lock tongue ejector. The passive lock can be operated by means of an operating device such as a handle and the lock transmission of the passive lock is driven via it. When the lock transmission is driven, one or more drive rods are also driven.

[0027] The locking device may optionally have an introduction or centering auxiliary. The introduction and centering auxiliary may be arranged and / or fastened in the drive rod channel of the door device. The introduction or centering auxiliary may be arranged and / or fastened in the bolt channel in a fixed position, respectively, wherein the introduction or centering auxiliary has a through-portion for driving the bolt. The through-portion of the introduction or centering auxiliary may be widened, preferably conically expanded (conical introduction section of the through-portion) in the opposite direction of the introduction direction, for example, starting from the driving bolt cross section. Thus, the driving bolt to be introduced can be introduced into the through-portion through the described introduction section with the aid of its free end (end section) so as to be centered. This makes it easy to introduce the driving bolt into the receiving portion of the coupling device.

[0028] The receptacle of the coupling device can be designed as a slot or as a receptacle slot for the end section. Independently of this, the receptacle of the coupling device can have an introduction chamfer. The introduction chamfer can be widened in the opposite direction to the introduction direction of the drive tongue, preferably conically (the chamfer of the opening edge of the receptacle). This makes it easier to introduce the drive tongue (end section) into the receptacle of the coupling device, to be more precise without the aid of additional components (the number of components of the locking device can be kept small).

[0029] As has been indicated above, the locking device can have two drive rods, two coupling devices and two drive bolts. Therefore, the locking device can be configured as a locking device for a door leaf of a door device, the locking device having a lock housing, a drive device fastened to the lock housing, two drive rods extending respectively along the (lock housing / drive rod) longitudinal direction, wherein the drive rods can be driven respectively by means of the drive devices and can be displaced along the longitudinal direction when driven by means of the drive devices, wherein coupling devices for coupling the drive bolts are fastened to the two drive rods respectively, wherein the coupling devices each have a receiving portion, into which one of the drive bolts can be introduced respectively by means of an end section, wherein the coupling device and the drive bolt are respectively configured so that when the end section is introduced into the corresponding receiving portion, the corresponding drive bolt is coupled to the coupling device by locking.

[0030] The locking device can alternatively be designed as a drive bolt lock or as a multi-point locking device.

[0031] The objects mentioned at the outset are achieved by a door arrangement having the features of the parallel claims. The door arrangement comprises a frame and at least one door leaf pivotably mounted on the frame. The door leafs each comprise a locking device having one or more of the aforementioned aspects. With regard to the advantages achievable with this, reference is made to the embodiments of the locking device associated therewith.

[0032] The door arrangement can have one door leaf (single-leaf door arrangement) or two door leaves (double-leaf door arrangement). In a double-leaf door arrangement, only one door leaf can be equipped with a locking device, wherein the door leaf can be a passage door leaf (active door leaf) or a fixed door leaf (passive door leaf). The design of a fixed door leaf with a locking device allows the fixed door leaf (driving lock tongue) to be locked at its hinge mating side. This contributes to the stable locking of the passage door leaf at the fixed door leaf. The design of a passage door leaf with a locking device is conducive to the seal between the passage door leaf and the frame, especially in the case of doors with a height of more than 2 meters (high wind loads).

[0033] It is also conceivable that in a two-leaf door arrangement, both door leaves are equipped with a locking device. This contributes to high safety and maximum sealing of the door leaves relative to the door frame. The drive device of the locking device of the fixed door can be designed as a passive lock, which has a lock catch receptacle and / or a lock tongue receptacle, and which can optionally have a lock catch ejector and / or a lock tongue ejector. The drive device of the locking device of the passage door can be designed as an active lock with a lock catch and / or a lock tongue, which can be aligned with the lock catch receptacle and / or the lock tongue receptacle of the passive lock in the closed position of the door leaf and can enter the lock catch receptacle and / or the lock tongue receptacle. In this way, the active lock and the passive lock can be designed as described above.

[0034] In a preferred embodiment, a recess for the drive device, a recess for the lock housing, at least one further recess for the coupling device and / or at least one latch channel for driving the latch (for concealed installation) can be formed in the door leaf. This facilitates the integration of the components of the locking device into the door leaf. As a result, the components of the locking device can be integrated into the door leaf so that they are protected from environmental influences and vandalism.

[0035] The invention is also achieved by a method for mounting a locking device at a door arrangement.

[0036] This relates to a method for installing a locking device on a door arrangement, wherein the locking device in particular has one or more locking devices according to the above-mentioned aspects, and the door arrangement has at least one frame and a door leaf pivotably mounted on the frame, wherein the method comprises the following steps:

[0037] a. introducing the drive device into a recess for the drive device, and introducing at least one coupling device into at least one other recess, and inserting the lock housing into the recess for the lock housing at the door leaf;

[0038] b. screwing the lock housing at least partially onto the door leaf;

[0039] c. pushing at least one drive bolt into the bolt channel formed at the door leaf for driving the bolt; and

[0040] d. Inserting the end section of the drive latch into the coupling device, wherein the drive latch is coupled to the coupling device by locking when the end section is introduced into the receptacle of the coupling device.

[0041] If the locking device has two coupling devices and two bolt channels are provided on the door leaf, two drive bolts can be pushed into the bolt channels for the drive bolts formed on the door leaf (one drive bolt per drive bolt channel). The end sections of the drive bolts can then be introduced into the respective coupling devices, wherein when the end sections are introduced into the receptacles of the respective coupling devices, the respective drive bolts are coupled to the coupling devices by locking.

[0042] The above step a. can, so to speak, be described synonymously by the feature “positioning the locking device at the door leaf”, which comprises the individual features of step a.

[0043] Prior to carrying out step a., at least one door leaf can be provided, wherein the door leaf has a recess for the drive device, a cutout for the lock housing, at least one further cutout for the coupling device and / or at least one latch channel for the drive latch (for concealed installation). If the locking device in question has two coupling devices, two further cutouts for the coupling devices are formed on the door leaf. If two drive latches are provided, two latch channels are formed on the door leaf for the drive latches. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The invention is explained in more detail below with reference to the drawings, wherein identical or functionally identical elements are provided with identical reference numerals, but are only designated once if necessary. The drawings show:

[0045] Figure 1a A front view of a door arrangement having a frame and two door leaves pivotably mounted on the frame, one of the door leaves being provided with a locking device;

[0046] Figure 1b Observation of the free end side (hinge mating side) of the door leaf shows the door leaf equipped with a locking device;

[0047] Figure 2a , b Observe the lock case ( Figure 2a ) and a partially cut-away side view ( Figure 2b ) shows the locking device in an independent position;

[0048] Figure 3 showing a partially broken away exploded view of the locking device;

[0049] Figure 4a -c shows a three-dimensional view of the coupling device of the locking device ( Figure 4a )、Longitudinal section( Figure 4b ) and enlarged section view ( Figure 4c );

[0050] FIG. 5, b shows an exploded view of the coupling device of the locking device ( Figure 5a ) and the enlarged exploded view ( Figure 5b );

[0051] Figure 6a -d shows an isometric view of the locking element of the coupling device ( Figure 6a ), a stereoscopic view at the far end of the locking element ( Figure 6b )、Longitudinal section( Figure 6c ) and a top view of the distal end of the locking element ( Figure 6d );

[0052] Figure 7a -d shows an isometric view of the housing of the coupling device ( Figure 7a )、Side view( Figure 7b )、Longitudinal section( Figure 7c ) and a top view of the receiving opening for the locking element ( Figure 7d );

[0053] Figure 8 A longitudinal section showing a section through a door leaf of a door arrangement; and

[0054] Figure 9a -c shows method steps for mounting a locking device on a door leaf of a door arrangement in a plurality of partially sectioned views. DETAILED DESCRIPTION

[0055] Figure 1a 2. A door arrangement is shown, which is generally designated by reference numeral 200. The door arrangement 200 has a frame 202, a first door leaf 204 pivotably mounted on the frame 202, and a second door leaf 206 pivotably mounted on the frame 202. The door leaves 204, 206 are pivotably mounted on the frame 202 by means of door hinges 208, 210, respectively. In the example, the first door leaf 204 is provided with a locking device 10 (in Figure 1a The locking device 10 is described more precisely below.

[0056] Figure 1b The first door leaf 204 provided with the locking device 10 is shown, looking towards the end side 205 of the first door leaf. Parts of the locking device 10, in particular the lock housing 12 thereof, can be seen there.

[0057] Figure 2a , Figure 2b and Figure 3 Different views of a locking device 10 are shown, each in an independent position. The locking device 10 has a lock housing 12 and a drive 14 fastened to the lock housing 12. In the example, the drive 14 is designed as a mortise lock 15, which has a lock drive 16 (not shown in detail), a lock catch 17, a lock tongue 18 and a compression nut 19.

[0058] Furthermore, in the example, the locking device 10 has two drive rods 21, 22, each extending along a longitudinal direction 20. The longitudinal direction 20 extends along the lock housing 12 or parallel to the lock housing 12. The drive rods 21, 22 can be driven by means of the drive device 14 and can be displaced along the longitudinal direction 20 when driven by means of the drive device 14. In particular, the lock transmission 16 can be driven by operating the compression nut 19, wherein for example the lock catch 17 and also the drive rods 21, 22 are correspondingly displaced.

[0059] The drive rods 21, 22 are each coupled to the drive device 14, in particular to its lock drive 16, and are guided on the lock housing 12 by means of a guide element 23 coupled to the lock housing 12. In the example, the guide element 23 engages in a corresponding recess 24 in the drive rods 21, 22.

[0060] A coupling device 25 for coupling a drive bolt 26, 27 is fastened to the drive rods 21, 22, respectively (see Figure 1b , Figure 9a or Figure 9b ).

[0061] The construction and operation of the coupling device 25 are described in particular with reference to Figures 4a to 7d The following is described in more detail, more precisely based on the example of a drive rod 22. The drive rod 21 and its coupling device 25 are designed similarly.

[0062] The coupling device 25 has a housing 25' with a flange section 28, via which the housing 25' of the coupling device 25 is fastened to the drive rod 22. In the example, the housing 25' is fastened to the drive rod 22 via two fastening points 29, for example screwed or riveted (only schematically shown).

[0063] In the housing 25' of the coupling device 25, a receiving portion 30 for the end section of the drive locking tongue 26, 27 is formed. In the example, the receiving portion 30 is formed as a receiving slot 31, which is open to the outside only toward its introduction opening 32. The receiving portion 30 has an introduction bevel 32', which widens conically in the opposite direction of the introduction direction of the drive locking tongue 26, 27 (i.e., from the introduction opening 32 to the outside). In addition, a locking element guide opening 33 is formed in the housing 25', which is open toward the flange section 30 (i.e., "upward" toward the drive rod 22) and leads into the receiving portion 30.

[0064] In the locking element guide opening 33, the locking element 50 is movably supported for coupling the drive locking tongues 26, 27. The locking element 50 can be in the coupling position (see Figure 4b The coupling device 25 is configured to be displaced between a coupling position (or 4c) and a release position (not shown), in which the locking element 50 engages in the receptacle 30 for coupling with the drive latch 26, 27, and in which the locking element 50 releases the receptacle 30 for decoupling the drive latch 26, 27 (the locking element 50 is at least partially or completely moved out of the receptacle 30 in the release position). The coupling device 25 is configured such that the locking element 50 is displaced further away from the drive rod 22 in the coupling position than in the release position.

[0065] The locking element 50 is preloaded into the coupled position, that is to say away from the drive rod 22, by means of a spring element 70, in the example by means of a helical compression spring 71. In the example, the spring element 70 is supported at one end on the drive rod 22 and at the other end on the locking element 50. In the example, a spring receiving section 35 is formed on the locking element guide opening 33 (see Figure 4c or Figure 5b ), the spring receiving section widens the cross section of the locking element guide opening 33 so that the spring element 70 can be arranged in the locking element guide opening 33.

[0066] The locking element 50 has an introduction chamfer 53 at its distal end 51. Thus, by introducing the end section of the drive latch 26, 27 into the recess 30, the locking element 50 can be moved from the coupling position (see Figure 4c ) is shifted in the direction of the release position (the release position is not shown).

[0067] The locking element 50 has a first contour feature 54 at its distal end 51 (see Figure 4c The first contour feature 54 is designed as a recess 55 which has an edge-side wall section 56 that projects beyond the recess 55 (see Figure 6b or Figure 6d). The receiving portion 30 has a second contour feature 57 which corresponds to the first contour feature 54 and is complementary in the example. The second contour feature 57 is designed as a projection 58 which has an edge-side depression 59 and is U-shaped in the example (see Figure 7d ). When the locking element 50 is in the coupling position (see Figure 4c ), the first contour feature 54 and the second contour feature 57 are engaged with each other to achieve anti-tilt.

[0068] The locking element 50 has a threaded section 60 at its proximal end 52. The threaded section 60 is designed as a hole 61 with an internal thread 62. In the example, the hole 61 with the internal thread 62 is formed in a bolt-shaped section 63 extending from the locking element 50, wherein the spring element 70 surrounds the bolt-shaped section 63 in the assembled state (see Figure 4c ).

[0069] The drive rod 22 and the lock housing 12 respectively have through-portions 12', 22' aligned with the threaded section 60 (see, for example, Figure 2a , Figure 2b and Figure 3 ). Thus, the operating element 80 having a mating threaded section 81 corresponding to the threaded section 60 can be guided through the through-portions 12', 22' and coupled to the threaded section 60. In the example, the operating element 80 having the mating threaded section 81 is configured as a bolt 82 having an external thread 83 (see Figure 2a and Figure 2b ). Thus, the locking element 50 can be operated through the lock housing 12 and the drive rod 22 by means of the operating element 80, for example, shifted from the coupling position to the release position. As a result, the drive bolts 26, 27 can be decoupled from the coupling device 25 "from the outside" without disassembling the locking device 10.

[0070] The locking element 50 has a cross section which is bounded by two mutually opposite, preferably mutually parallel flat sides 64 and two mutually opposite, narrow sides 65 connecting the flat sides 64 to one another, wherein the narrow sides 65 have a rounded, in the example respectively semicircular contour (see Figure 6d The locking element guide opening 33 has, at least in sections, a cross section that is complementary to that of the locking element 50 (see Figure 7d A spring receiving section 35 for the spring element 70 is formed in the flat side 84 of the locking element guide opening 33 .

[0071] The receiving portion 30 is arranged at the coupling device 25 so that the drive lock tongues 26, 27 coupled to the coupling device 25 are arranged offset away from the drive rod 22 at the side of the drive rod 22 facing away from the lock housing 12 (see Fig.9c ).

[0072] The design of the drive latch 26 is explained below. The drive latch 26 has an end section 26' (insertion section), a connecting section 26" and a latch section 26'" (see Figure 9b The end section 26' is used to couple the drive bolt 26 to the coupling device 25. The bolt section 26"' is used to engage in a locking manner with the door frame 22 (see Figure 1a and Figure 1b The connecting section 26 ″ is located between the end section 26 ′ and the locking tongue section 26 ″′ and connects the end section and the locking tongue section to each other. A through-portion D for engagement with the locking element 50 is formed in the end section 26 ′.

[0073] The locking device 10 optionally has an introduction or centering aid 90. The introduction or centering aid 90 can be arranged and / or fastened in the drive rod channel 218 of the door device 200 (see Figure 9b ).

[0074] As already explained above, a coupling device 25 for coupling a drive tongue 27 is fastened to the drive rod 22. The coupling device 25 has a receiving portion 30, into which the drive tongue 27 can be introduced by means of its end section 27'. The coupling device 25 and the drive tongue 27 are configured so that when the end section 27' is introduced into the receiving portion 30, the drive tongue 27 is coupled to the coupling device 25 by locking.

[0075] The coupling device 25 is configured so that the coupling of the drive lock tongue 27 at the coupling device 25 can be reversibly disconnected. Therefore, the operating element 80 can be coupled to the locking element 50 and the locking element 50 can be shifted to the release position. Therefore, the previously coupled drive lock tongue 27 can be decoupled from the coupling device 25 and taken out from the coupling device.

[0076] Figure 8 A longitudinal section of a section of the first door leaf 204 is shown. A recess 212 for the drive device 14 is formed in the door leaf 204. In addition, a recess 214 for the lock housing 12 is formed in the door leaf 204. Two further recesses 216 for the coupling device 30 are also formed in the door leaf 204. In addition, two hidden ("offset inwards in the door leaf 204") latch channels 218 for driving latches 26 and 27 are formed in the door leaf 204. The latch channels 218 extend from one of the further recesses 216 and open into the upper side 204' or the lower side 204" of the door leaf 204, respectively. The introduction and centering aid 90 can be optionally inserted into the latch channel 218 in the end region adjacent to the further recess 216 (see Figure 9b). The introduction or centering aid has a through-passage (without reference numeral) for the drive tongues 26, 27. In the example, the through-passage of the introduction or centering aid 90 widens from the drive tongue cross section opposite to the introduction direction, as explained above.

[0077] exist Figures 9a to 9c A method for installing the locking device 10 at the door device 200 is illustrated in FIG.

[0078] First, at least one door device 200 is provided, the door device having a frame 202 and at least one door leaf 204, the door leaf having a recess or a gap, such as a combination of Figure 8 described.

[0079] Before, simultaneously or subsequently, a locking device 10 is provided (see Figure 9a ). After the locking device is provided, it is positioned on the door leaf 204. For this purpose, the drive device 14 is introduced into the recess 212, the coupling device 25 is introduced into each of the other recesses 216 and the lock housing 12 is inserted into the recess 214. The locking device 10 is thus positioned on the door leaf 204 in the installed position.

[0080] Accordingly, the lock housing 12 is at least partially or completely screwed to the door leaf 204. Thus, the lock housing 12 and the parts of the locking device 10 fastened thereto are fastened to the door leaf 204 (see Figure 9b ).

[0081] Before, drive lock tongue 26,27 is provided simultaneously or subsequently. After providing described drive lock tongue, drive lock tongue 26,27 is pushed into the lock tongue channel 218 formed at door leaf 204 respectively (refer to Figure 9b ).

[0082] During the further process of pushing in, the end sections of the drive latches 26, 27 are introduced into the coupling device 25. Here, when the respective end sections are introduced into the respective receptacles 30 of the coupling device 25, the drive latches 26, 27 are coupled to the coupling device 25 by locking.

[0083] As long as one or both of the drive bolts 26, 27 are to be removed again, the operating element 80 can be screwed into the threaded section 60 in the form of an internal thread 62 of the locking element 50 through the through-hole 12' in the lock housing 12 and the through-hole 22' in the drive rod 22 in the form of a bolt 82. If the bolt 82 is then pulled outward away from the lock housing 12, the locking element 50 is displaced from the coupling position in the direction of the release position. The drive bolts 26, 27 involved can then be pulled out of the bolt channel 218 involved without having to disassemble the locking device 10 or remove it entirely from the door leaf 204.

Claims

1. A locking device (10) for a door leaf (204) of a door arrangement (200), the locking device comprising a lock housing (12), a drive device (14) fastened to the lock housing (12) and at least one drive rod (21, 22) extending along a longitudinal direction (20), wherein the drive rod (21, 22) can be driven by means of the drive device (14) and can be displaced along the longitudinal direction (20) when driven by means of the drive device (14), It is characterized in that A coupling device (25) for coupling a drive tongue (26, 27) is fastened to each of the at least one drive rod (21, 22), wherein the coupling device (25) has a receiving portion (30), into which the drive tongue (26, 27) can be introduced by means of an end section (26'), wherein the coupling device (25) and the drive tongue (26, 27) are configured such that when the end section (26') is introduced into the receiving portion (30), the drive tongue (26, 27) is coupled to the coupling device (25) by locking.

2. The locking device (10) according to claim 1, It is characterized in that The coupling device (25) is configured such that the coupling of the drive latch (26, 27) at the coupling device (25) can be reversibly released.

3. The locking device (10) according to claim 1 or 2, It is characterized in that The coupling device (25) has a housing (25') in which a locking element (50) is movably supported, wherein the locking element (50) is displaceable between a coupling position and a release position, in which the locking element (50) engages in the receptacle (30) for coupling with the drive latch (26, 27), and in which the locking element (50) releases the receptacle (30) for decoupling the drive latch (26, 27).

4. The locking device (10) according to claim 3, It is characterized in that The locking element (50) is preloaded into the coupling position by means of a spring element (70), in particular a compression spring (71).

5. The locking device (10) according to claim 3 or 4, It is characterized in that The locking element (50) has an introduction chamfer (53) so that the locking element (50) can be displaced from the coupling position in the direction of the release position by introducing an end section (26') of the drive latch (26, 27) into the recess (30).

6. The locking device (10) according to any one of claims 3 to 5, It is characterized in that The locking element (50) has a first contour feature (54) at its distal end (51), wherein the receptacle (30) has a second contour feature (57) corresponding to, in particular complementary to, the first contour feature (54), wherein the first contour feature (54) and the second contour feature (57) engage with each other when the locking element (50) is in the coupled position.

7. The locking device (10) according to any one of claims 3 to 6, It is characterized in that The locking element (50) has a threaded section (60) at its proximal end (52), and the drive rod (26, 27) and / or the lock housing (12) respectively have a through-portion (12', 22') aligned with the threaded section (60), so that an operating element (80) can be guided through the through-portion (12', 22') and coupled to the threaded section (60), and the operating element has a mating threaded section (81) corresponding to the threaded section (60).

8. The locking device (10) according to claim 7, It is characterized in that The threaded section (60) is designed as a hole (61) with an internal thread (62), and / or the actuating element (80) with the mating threaded section (81) is designed as a screw (82) with an external thread (83).

9. The locking device (10) according to claim 8, It is characterized in that The hole (61) having an internal thread (62) is formed in a pin-shaped section (63) which preferably protrudes from the locking element (50), wherein the spring element (70) surrounds the pin-shaped section (63).

10. The locking device (10) according to any one of claims 3 to 9, It is characterized in that The locking element (50) has a cross section which is delimited by two mutually opposite, preferably mutually parallel, flat sides (64) and two mutually opposite, narrow sides (65) which connect the flat sides (64) to one another, wherein the narrow sides (65) have a rounded contour.

11. The locking device (10) according to any one of the preceding claims, It is characterized in that The receiving portion (30) is arranged on the coupling device (25) so that the driving lock tongue (26, 27) coupled to the coupling device (25) is arranged offset away from the driving rod (21, 22) on the side of the driving rod (21, 22) facing away from the lock housing (12).

12. The locking device (10) according to any one of the preceding claims, It is characterized in that The housing (25') of the coupling device (25) has a flange section (28) for fastening the coupling device (25) to the drive rod (21, 22), in particular by riveting or screwing.

13. The locking device (10) according to any one of the preceding claims, It is characterized in that The drive latch (26, 27) has an end section (26'), a connecting section (26") and / or a latch section (26'").

14. The locking device (10) according to any one of the preceding claims, It is characterized in that The locking device has an introduction or centering aid (90) for the drive bolt (26, 27).

15. The locking device (10) according to any one of the preceding claims, It is characterized in that The receptacle (30) of the coupling device (25) has an insertion chamfer (32').

16. A door arrangement (200) comprising a frame (202) and at least one door leaf (204) pivotably supported on the frame (202), wherein the door leaf (204) comprises a locking device (10) according to any one of the preceding claims.

17. Door arrangement (200) according to the preceding claim, It is characterized in that A recess (212) for the drive device (14), a recess (214) for the lock housing (12), at least one further recess (216) for the coupling device (25) and / or at least one latch channel (218) for the drive latch (26, 27) are formed in the door leaf (204).

18. A method for mounting a locking device (10) on a door arrangement (200), wherein the locking device is in particular a locking device (10) according to any one of claims 1 to 15, and the door arrangement has a frame (202) and at least one door leaf (204) pivotably mounted on the frame (202), wherein the method comprises the following steps: a. introducing the drive device (14) into a recess (212) for the drive device (14), introducing the at least one coupling device (25) into at least one further recess (216), and inserting the lock housing (12) into a recess (214) for the lock housing (12) at the door leaf (204); b. screwing the lock housing (12) at least partially onto the door leaf (204); c. pushing at least one drive latch (26, 27) into a latch channel (218) for the drive latch formed at the door leaf (204); as well as d. Introducing the end section of the drive lock tongue (26, 27) into the coupling device (25), wherein when the end section is introduced into the receptacle (30) of the coupling device (25), the drive lock tongue (26, 27) is coupled to the coupling device (25) by locking.

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