LOCKING DEVICE, DOOR ARRANGEMENT WITH SUCH A LOCKING DEVICE AND METHOD FOR MOUNTING SUCH A LOCKING DEVICE

Description

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

[0002] A locking device of the type mentioned above is known from the prior art, for example from EP 3 748 109 A1. This discloses a locking device with a faceplate, a main lock attached to the faceplate, and several secondary locks attached to the faceplate, which are coupled to the main lock via connecting rods. This allows for secure and reliable locking. Installation on the door leaf is usually carried out with the locking device fully pre-assembled. This places corresponding demands on the milled recesses in the door leaf. Maintenance or replacement of lock components requires removal and, if necessary, at least partial disassembly of the locking device.

[0003] EP 3 045 624 A1 discloses a lock mountable on a leaf with a locking element, wherein the locking element can be actuated via a lock mechanism. The lock also has an interface for connecting a drive bolt device with a locking bar. The interface has a connecting element connected to the lock mechanism and an opening arranged in the lock housing of the lock. When the drive bolt device is connected, a gear element passes through the opening and is connected to the connecting element. Disassembly is required to release the drive bolt device from the lock.

[0004] EP 2 405 086 A2 discloses a corner lock with a lock case and a lock mechanism arranged therein, wherein an adapter is arranged on the lock case to accommodate a ball head of a deadbolt.

[0005] A locking actuation device is disclosed in DE 10 2011 050 226 A1. This device comprises a drive rod, wherein a bolt with its connecting element can be inserted into an opening in the drive rod and secured thereto by turning.

[0006] US 7 404 306 B2 shows a multi-point locking system with a main lock that drives drive rods via a lock mechanism. The drive rods have an adapter at the end facing away from the main lock. This adapter has a receptacle into which a projection of a drive bolt can be inserted and secured.

[0007] DE 22 22 839 A1 discloses a tilt-and-turn fitting with a drive rod and an upper and lower corner fitting. To connect the drive rod to the corner fittings, the drive rod has a coarse pitch, and the coupling ends of the corner fittings have fine teeth. The drive rod is connected to the corner fittings via adapter pieces that have coupling pins on one side and fine teeth on the other.

[0008] The invention is based on the object of facilitating the assembly and maintenance of a locking device. In particular, it is desirable that one or more espagnolettes can be easily coupled to a drive mechanism of the locking device and decoupled as needed.

[0009] The invention solves this problem by a locking device having the features of claim 1. The locking device is designed and / or intended for a door leaf of a door assembly. The locking device comprises a faceplate, a drive device attached to the faceplate, at least one drive rod extending along a longitudinal direction (faceplate longitudinal direction or drive rod longitudinal direction), and at least one drive bolt.

[0010] The at least one drive rod can be driven by means of the drive device and, in the case of a drive, can be displaced along the longitudinal direction by means of the drive device.

[0011] The drive rod is guided on the faceplate by means of guide elements coupled to the faceplate.

[0012] A coupling device for coupling each of the drive bolts is attached to the at least one drive rod. The coupling device has a receptacle into which the drive bolt can be inserted with an end section. The coupling device and the drive bolt are each configured such that, when the end section is inserted into the receptacle, the drive bolt is coupled to the coupling device by locking it or is fastened to the coupling device. In other words, when the end section is inserted into the receptacle, the drive bolt is locked to or with the coupling device (creating a positive connection in the form of a snap-in connection).

[0013] The proposed locking device enables automatic coupling or connection of the drive bolt to or with the coupling device, without the need for screws or other assembly steps. The coupling is achieved by simply plugging the drive bolt and coupling device together. This simplified assembly process reduces assembly time. Due to the comparatively simple movement of the coupling (insertion or plugging together), the assembly of the locking device can be automated much more easily.

[0014] The receptacle into which the drive bolt can be inserted with an end section is open, preferably exclusively, in the longitudinal direction, in particular facing away from the drive device.

[0015] In a preferred embodiment, the coupling device can be configured such that the coupling of the drive bolt to or with the coupling device can be reversibly released. In other words, after being locked to or with the coupling device, the drive bolt can be reversibly released from the coupling device. This facilitates disassembly or maintenance of the drive bolt(s).

[0016] Advantageously, the coupling device can have a housing in which a locking element for coupling the drive bolt is displaceably mounted, wherein the locking element can be displaced between a coupling position, in which the locking element engages in the receptacle along a displacement direction for coupling with the drive bolt, and a release position in which the locking element releases the receptacle for decoupling the drive bolt (the locking element is at least partially or completely displaced out of the receptacle in the release position). The locking element enables a structurally simple and stable coupling of the drive bolt to the coupling device to be achieved. If an end section or insertion section of the drive bolt is inserted or plugged into the receptacle, the locking element can be brought into the coupling position. The locking element can then be inserted into an opening or recess formed in the end section of the drive bolt for coupling the drive bolt.intervene in a passage formed there.

[0017] Specifically, the displacement direction along which the locking element is displaceable can be oriented orthogonally to the longitudinal direction along which the at least one drive rod extends. Irrespective of this, the coupling device is preferably configured such 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 located further away from the drive rod in the coupling position than in the release position.

[0018] The locking element can expediently be preloaded into the coupling position, particularly away from the drive rod, by means of a spring element, in particular by means of a preferably helical compression spring. This reliably holds the locking element in the coupling position. Furthermore, automatic locking or engaging of the drive bolt on the coupling device is facilitated. A spring receptacle or spring receptacle sections can be formed in the housing of the coupling device for arranging the spring element. The spring element can be supported at one end on the locking element and at the other end on a housing section or on the drive rod to which the coupling device is attached.

[0019] In a preferred embodiment, the locking element can have an insertion bevel, so that the locking element can be displaced from the coupling position toward the release position by inserting the end section of the drive bolt into the recess. This promotes automatic coupling of the drive bolt to the coupling device. Thus, the locking element can be raised from the coupling position by inserting or pushing in the end section of the drive rod.

[0020] Advantageously, the locking element can have a first profile feature at its distal end (facing the receptacle of the coupling device), wherein the receptacle can have a second profile feature corresponding to, in particular complementary to, the first profile feature, wherein the first profile feature and the second profile feature engage with each other when the locking element is in the coupling position. Thus, "tilting protection" can be realized, since the engagement of the first profile feature and the second profile feature can largely prevent the locking element from tilting when inserting and / or removing the drive bolt. The first profile feature (locking element) can be designed as a recess with edge-side wall sections projecting beyond the recess. The second profile feature can be designed as a projection with an edge-side recess, e.g., in a U-shape.

[0021] Conveniently, the locking element can have a threaded portion at its proximal end (facing the drive rod), and the drive rod and / or the face plate can each have a passage aligned with the threaded portion, so that an actuating element, which has a mating threaded portion corresponding to the threaded portion, can be passed through the passage and coupled to the threaded portion. This allows the locking element to be actuated "from the outside" through the drive rod and / or the face plate by means of the coupled actuating element. Thus, the locking element can be actuated (through the face plate and / or drive rod), for example, moved from the coupled position to the release position. This allows the espagnolette to be uncoupled or removed while the locking device is installed on or in a door assembly (no removal or disassembly of the locking device required).

[0022] Specifically, the threaded portion can be designed as a bore with an internal thread, and / or the actuating element with a counter-threaded portion can be designed as a screw with an external thread. This contributes to a compact, structurally simple, and stable coupling of the actuating element to the locking element.

[0023] Preferably, the bore with internal thread can be formed in a pin-shaped section, preferably protruding from the locking element, with the spring element surrounding the pin-shaped section. This allows for a particularly compact arrangement of the spring element, in particular the compression spring, and the bore with internal thread. The screw with external thread can thus be passed through the free interior space ("eye") of the spring element and screwed into the bore with internal thread.

[0024] Specifically, the locking element can have a cross-section defined by two opposing, preferably parallel, flat sides and two opposing narrow sides connecting the flat sides, the narrow sides having a rounded contour. This contributes to improved support of the locking element in the housing of the coupling device, allowing the housing to be designed with comparatively thin walls. The rounded contour of the narrow sides can in particular be arcuate or semicircular. A locking element guide opening can be formed in the housing of the coupling device, which at least in sections has a cross-section complementary to the locking element. Spring receiving sections for the spring element can be formed in the flat sides of the locking element guide opening.

[0025] In a preferred embodiment, the receptacle can be arranged on the coupling device in such a way that a drive bolt coupled to the coupling device is arranged offset from the drive rod on the side of the drive rod facing away from the faceplate. This allows the drive bolt to be arranged offset relative to the drive rod or faceplate. This allows for a concealed arrangement of the drive bolt (the drive bolt is set into the interior of the door leaf, e.g., into a drive bolt channel in the door leaf that is closed at the sides and open at the ends).

[0026] The housing of the coupling device can expediently have a flange section for fastening the coupling device to the drive rod, in particular by riveting or screwing. This allows for a structurally simple and stable fastening of the coupling device to the drive rod.

[0027] Advantageously, the espagnolette bolt can have an end section (middle section), a connecting section and / or a locking section. The end section (middle section) serves to couple the espagnolette bolt to the coupling device. The locking section serves for locking engagement with a door frame (the locking section protrudes from the top side of a leaf or door wing) or with the substrate (the locking section protrudes from the bottom side of a leaf or door wing). The locking section can be thicker than the end section and / or the connecting section. The connecting section lies between the end section (middle section) and the locking section and connects the end section to the locking section. One or more recesses or passages for engagement with the locking element can be formed in the end section (middle section).

[0028] The locking section and the connecting section can each have a (corresponding) toothing by means of which the two sections can be coupled or are coupled to one another. This contributes to a particularly stable coupling of the locking section and the connecting section. Optionally, the locking section and the connecting section can be designed such that they can be coupled to one another with different axial overlaps. This allows the length of the drive bolt to be adjusted by coupling the locking section and the connecting section with different (axial) overlaps. Alternatively, the locking section and the connecting section can be firmly connected to one another, e.g., riveted.

[0029] In one possible embodiment, the drive device that drives the at least one drive rod can be an electric motor drive.

[0030] It is also conceivable for the drive device to be designed as a mortise lock with one or more locking elements (latch and / or deadbolt), whereby the mortise lock has a lock follower and / or a locking cylinder, and the lock mechanism of the mortise lock can be actuated via at least one or both of these components. When the lock mechanism is driven, one or more connecting rods are also driven. The mortise lock can be mounted on an active leaf (active leaf) (as an "active lock").

[0031] The drive mechanism can also be designed as a passive lock with a latch and / or bolt receptacle, which are preferably equipped with a latch and / or bolt ejector. The passive lock can be actuated by an actuating device, e.g., a handle, and a lock gear of the passive lock can be driven via this. When the lock gear is driven, one or more drive rods are also driven.

[0032] The locking device can optionally have an insertion or centering aid. The insertion or centering aid can be arranged and / or fastened in a drive rod channel of a door assembly. The insertion or centering aid can be arranged and / or fastened in a fixed position in a bolt channel, wherein the insertion or centering aid has a passage for the drive bolt. The passage of the insertion or centering aid can widen, preferably conically, in the opposite direction of insertion, e.g., starting from the drive bolt cross-section (conical insertion section of the passage). This allows a drive bolt to be inserted to be inserted with its free end (end section) through the described insertion section into the passage and thus centered. This facilitates insertion of the drive bolt into the receptacle of the coupling device.

[0033] The coupling device receptacle can be designed as a slot or a receiving slot for the end section. Independently of this, the coupling device receptacle can have an insertion bevel. The insertion bevel can widen in the opposite direction to the insertion direction of the drive bolt, preferably conically (beveling the opening edge of the receptacle). This facilitates the insertion of the drive bolt (end section) into the coupling device receptacle without additional components (the number of components of the locking device can be kept to a minimum).

[0034] As already indicated above, the locking device can have two drive rods, two coupling devices and two drive bolts.The locking device can thus be designed as a locking device for a door leaf of a door arrangement, with a faceplate, a drive device fastened to the faceplate, and two drive rods each extending along a (faceplate / drive rod) longitudinal direction, wherein the drive rods can each be driven by means of the drive device and, when driven, can be displaced along the longitudinal direction by means of the drive device, wherein a coupling device for coupling a drive bolt is fastened to each of the two drive rods, wherein the coupling devices each have a receptacle into which one of the drive bolts can be inserted with an end section, wherein the coupling devices and the drive bolts are each configured such that the respective drive bolt is coupled to the coupling device by locking when the end section is inserted into the respective receptacle.

[0035] The locking device can optionally be designed as a deadbolt lock or as a multi-point locking device.

[0036] The aforementioned object is also achieved by a door assembly having the features of the independent claim. The door assembly comprises a frame and at least one door leaf pivotably mounted on the frame. The door leaf comprises a locking device with one or more of the aspects described above. Regarding the advantages achievable thereby, reference is made to the relevant statements regarding the locking device.

[0037] 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 of the door leaves can be equipped with the locking device, whereby this one door leaf can be the active leaf (active leaf) or the passive leaf (passive leaf). Equipping the passive leaf with the locking device allows the passive leaf to be locked (shooting bolt) on the opposite hinge side. This contributes to a stable locking of the active leaf to the passive leaf. Equipping the active leaf with the locking device promotes a seal between the active leaf and the frame, particularly in doors more than 2 meters high (high wind loads).

[0038] It is also conceivable for both door leaves in a double-leaf door arrangement to be equipped with a locking device. This contributes to a high level of security and extensive sealing of the door leaves relative to the door frame. The drive mechanism of the locking device of the inactive leaf can be designed as a passive lock with a latch and / or deadbolt receptacle, which can optionally have a latch and / or deadbolt ejector. The drive mechanism of the locking device of the active leaf can be designed as an active lock with a latch and / or deadbolt, which, when the door leaves are in the closed position, are aligned with the latch and / or deadbolt receptacle of the passive lock and can penetrate it. The active lock and passive lock can be designed as described above.

[0039] In a preferred embodiment, the door leaf can be provided with a recess for the drive mechanism, a cutout for the face plate, at least one further cutout for the coupling mechanism, and / or at least one locking channel (for concealed installation) for the espagnolette. This contributes to the integration of the components of the locking device into the door leaf. This allows the components of the locking device to be integrated into the door leaf, protecting them from environmental influences and tampering.

[0040] The invention is also achieved by a method for mounting a locking device on a door assembly.

[0041] This is a method for mounting a locking device according to the invention according to one of the embodiments described above on a door arrangement with at least one frame and a door leaf pivotably mounted on the frame, the method comprising the following steps: a. Inserting the drive device into a recess for the drive device and the at least one coupling device into at least one further recess and inserting the faceplate into a recess on the door leaf for the faceplate; b. At least partially screwing the faceplate to the door leaf; c. Inserting at least one drive bolt into a respective locking channel formed on the door leaf for the drive bolt; and d. Inserting an end section of the drive bolt into the coupling device, wherein the drive bolt is coupled to the coupling device by locking when the end section is inserted into a receptacle in the coupling device.

[0042] If the locking device has two coupling devices and two locking channels are provided on the door leaf, two drive bolts can be inserted into the locking channels for drive bolts provided on the door leaf (one drive bolt per drive bolt channel). One end section of each drive bolt can then be inserted into the respective coupling device, whereby the respective drive bolt is coupled to the coupling device by locking when the end section is inserted into a receptacle of the respective coupling device.

[0043] The above step a. can be described, so to speak synonymously, by the feature "positioning the locking device on the door leaf", which includes the individual features as step a.

[0044] Before performing 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 face plate, at least one further cutout for the coupling device, and / or at least one locking channel (for concealed installation) for the espagnolette. If the locking device in question has two coupling devices, two further cutouts are formed on the door leaf, each for a coupling device. If two espagnolettes are provided, two locking channels are formed on the door leaf, each for a espagnolette.

[0045] The invention is explained in more detail below with reference to the figures, in which identical or functionally equivalent elements are provided with identical reference numerals, if necessary, but only once. They show: Fig.1a a door arrangement with a frame, two door leaves pivotably mounted on the frame, one of which is equipped with a locking device in a front view; Fig.1b the door leaf equipped with the locking device with a view of the free front side of the door leaf (opposite the hinge side); Fig.2a,b the locking device in isolation with a view of the face plate ( Figure 2a ) and in a partially sectioned side view ( Figure 2b ); Fig.3 the locking device in a partially sectioned exploded view; Fig.4a-c the coupling device of the locking device in a perspective view ( Figure 4a ), in a longitudinal section ( Figure 4b ) and in an enlarged and sectioned partial view ( Figure 4c ); Fig.5a,b the coupling device of the locking device in an exploded view ( Figure 5a ) and an enlarged exploded view ( Figure 5b); Fig.6a-dthe locking element of the coupling device in an isometric view ( Figure 6a ), a perspective view of the distal end of the locking element ( Figure 6b ), a longitudinal section ( Figure 6c ) and in a plan view of the distal end of the locking element ( Figure 6d ); Fig.7a-dthe housing of the coupling device in an isometric view ( Figure 7a ), a side view ( Figure 7b ), a longitudinal section ( Figure 7c ) and a top view with a view of the receiving opening for the locking element ( Figure 7d ); Fig.8 shows a longitudinal section through a portion of a door leaf of the door arrangement; and Fig.9a-c show method steps for mounting the locking device on a door leaf of a door arrangement in several partially sectioned views.

[0046] Figure 1ashows a door assembly, which is designated overall by the reference numeral 200. The door assembly 200 comprises a frame 202, a first door leaf 204 pivotally mounted on the frame 202, and a second door leaf 206 pivotally mounted on the frame 202. The door leaves 204, 206 are each pivotally mounted on the frame 202 by means of door hinges 208, 210. In the example, the first door leaf 204 is equipped with a locking device 10 (in Figure 1a indicated by a dashed box 10). The locking device 10 is described in more detail below.

[0047] Figure 1b shows the first door leaf 204 equipped with the locking device 10, viewed from its front side 205. A part of the locking device 10 can be seen there, in particular its face plate 12.

[0048] The Figures 2a, 2b and 3show the locking device 10 in different views, each in isolation. The locking device 10 has the face plate 12 and a drive device 14 attached to the face plate 12. In this example, the drive device 14 is designed as a mortise lock 15, which has a lock gear 16 (not shown in detail), a latch 17, a bolt 18, and a follower 19.

[0049] In addition, the locking device 10 in the example has two drive rods 21, 22, each extending along a longitudinal direction 20. The longitudinal direction 20 extends along or parallel to the face plate 12. The drive rods 21, 22 can be driven by the drive device 14 and, when driven by the drive device 14, can be displaced along the longitudinal direction 20. Specifically, by actuating the follower 19, the lock gear 16 can be driven, whereby, for example, the latch 17 and also the drive rods 21, 22 are displaced accordingly.

[0050] The drive rods 21, 22 are each coupled to the drive mechanism 14, in particular to its lock gear 16, and guided on the face plate 12 by means of guide elements 23 coupled to the face plate 12. In the example, the guide elements 23 engage in corresponding recesses 24 in the drive rods 21, 22.

[0051] On the drive rods 21, 22 there is a coupling device 25 for coupling a drive bolt 26, 27 (cf. Figure 1b , 9a or 9b ) attached.

[0052] The structure and operation of the coupling device 25 are described with reference to the Figures 4a to 7d described in more detail using the example of the drive rod 22. The drive rod 21 and its coupling device 25 are constructed analogously.

[0053] The coupling device 25 has a housing 25', which has a flange portion 28, via which the housing 25' of the coupling device 25 is attached to the drive rod 22. In the example, the housing 25' is attached to the drive rod 22 via two attachment points 29, e.g., screwed or riveted (shown only schematically).

[0054] A receptacle 30 for an end section of a drive bolt 26, 27 is formed in the housing 25' of the coupling device 25. In the example, the receptacle 30 is designed as a receiving slot 31, which is open outward only toward its insertion opening 32. The receptacle 30 has an insertion bevel 32' that widens conically in the opposite direction to the insertion direction of the drive bolt 26, 27 (i.e., from the insertion opening 32 outward). Furthermore, 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 opens into the receptacle 30.

[0055] A locking element 50 for coupling the drive bolt 26, 27 is slidably mounted in the locking element guide opening 33. The locking element 50 can be moved between a coupling position (see Fig.4b or 4c), in which the locking element 50 engages in the receptacle 30 for coupling with the drive bolt 26, 27, and a release position (not shown), in which the locking element 50 releases the receptacle 30 for decoupling the drive bolt 26, 27 (locking element 50 is at least partially or completely displaced out of the receptacle 30 in the release position). The coupling device 25 is designed such that the locking element 50 is displaced further away from the drive rod 22 in the coupling position than in the release position.

[0056] The locking element 50 is preloaded into the coupling position, i.e., away from the drive rod 22, by means of a spring element 70, in the example with 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, spring receiving sections 35 are formed on the locking element guide opening 33 (see. Figure 4c or 5b), which expand the cross-section of the locking element guide opening 33 such that the spring element 70 can be arranged in the locking element guide opening 33.

[0057] The locking element 50 has an insertion bevel 53 at its distal end 51. As a result, the locking element 50 can be removed from the coupling position (cf. Fig.4c ) towards the release position (release position not shown).

[0058] The locking element 50 has a first profile feature 54 at its distal end 51 (cf. Figure 4c ). The first profile feature 54 is designed as a recess 55 with edge-side wall sections 56 projecting beyond the recess 55 (cf. Figure 6b or 6d). The receptacle 30 has a second profile feature 57 corresponding to, and in the example complementary to, the first profile feature 54. The second profile feature 57 is designed as a projection 58 with an edge-side recess 59, in the example in a U-shape (cf. Figure 7d ). The first profile feature 54 and the second profile feature 57 engage with each other to provide anti-tilt protection when the locking element 50 is in the coupling position (cf. Figure 4c ).

[0059] The locking element 50 has a threaded portion 60 at its proximal end 52. The threaded portion 60 is formed as a bore 61 with an internal thread 62. In the example, the bore 61 with the internal thread 62 is formed in a pin-shaped portion 63 protruding from the locking element 50, wherein the spring element 70 surrounds the pin-shaped portion 63 in the assembled state (see Figure 4c ).

[0060] The drive rod 22 and the face plate 12 each have a passage 12', 22' aligned with the threaded section 60 (cf. e.g. Figure 2a, 2b and Figure 3 ). Thus, an actuating element 80, which has a counter-threaded section 81 corresponding to the threaded section 60, can be guided through the passages 12', 22' and coupled to the threaded section 60. The actuating element 80 with counter-threaded section 81 is designed in the example as a screw 82 with an external thread 83 (cf. Figure 2a and 2b ). Thus, by means of the actuating element 80, the locking element 50 can be actuated through the face plate 12 and the drive rod 22, for example, moved from the coupled position to the released position. This allows a drive bolt 26, 27 to be uncoupled from the coupling device 25 "from the outside" without dismantling the locking device 10.

[0061] The locking element 50 has a cross-section which is delimited by two opposing, preferably parallel, flat sides 64 and two opposing narrow sides 65 connecting the flat sides 64, wherein the narrow sides 65 have a rounded, in the example each semicircular contour (cf. Figure 6d ). The locking element guide opening 33 has, at least in sections, a cross-section complementary to the locking element 50 (cf. Figure 7d ). Spring receiving sections 35 for the spring element 70 are formed in the flat sides 84 of the locking element guide opening 33.

[0062] The receptacle 30 is arranged on the coupling device 25 in such a way that a drive bolt 26, 27 coupled to the coupling device 25 is arranged offset from the drive rod 22 on the side of the drive rod 22 facing away from the face plate 12 (cf. Figure 9c ).

[0063] The structure of the drive bolt is explained using the drive bolt 26. The drive bolt 26 has an end section 26' (insertion section), a connecting section 26'' and a locking section 26‴ (see Figure 9b ). The end section 26' serves to couple the drive bolt 26 to the coupling device 25. The bolt section 26‴ serves for locking engagement with a door frame 202 (cf. Figure 1a and b ). The connecting portion 26'' is located between the end portion 26' and the locking portion 26‴ and connects them together. A passage D for engagement with the locking element 50 is formed in the end portion 26'.

[0064] The locking device 10 optionally has an insertion or centering aid 90. The insertion or centering aid 90 can be arranged and / or fastened in a drive rod channel 218 of a door assembly 200 (see Figure 9b ).

[0065] As previously explained, the coupling device 25 for coupling the drive bolt 27 is attached to the drive rod 22. The coupling device 25 has the receptacle 30 into which the drive bolt 27 can be inserted with its end section 27'. The coupling device 25 and the drive bolt 27 are configured such that the drive bolt 27 is coupled to the coupling device 25 by locking when the end section 27' is inserted into the receptacle 30.

[0066] The coupling device 25 is configured such that the coupling of the drive bolt 27 to the coupling device 25 can be reversibly released. Thus, the actuating element 80 can be coupled to the locking element 50, and the locking element 50 can be moved into the release position. A previously coupled drive bolt 27 can thus be decoupled from the coupling device 25 and removed.

[0067] Figure 8shows a section of the first door leaf 204 in a longitudinal section. A recess 212 for the drive device 14 is formed in the door leaf 204. Furthermore, a cutout 214 for the face plate 12 is formed in the door leaf 204. Two further cutouts 216 are formed in the door leaf 204, each for a coupling device 30. Furthermore, two concealed locking channels 218 ("displaced inward in the door leaf 204") are formed in the door leaf 204, each for a drive bolt 26, 27. The locking channels 218 each 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. An insertion and centering aid 90 can optionally be inserted into the locking channels 218 in the end area adjacent to the further recess 216 (cf. Figure 9b). The insertion or centering aid has a passage (without reference symbol) for the drive bolt 26, 27. In the example, the passage of the insertion or centering aid 90 widens in the opposite direction to the insertion direction, starting from the drive bolt cross-section, as explained above.

[0068] In the Figures 9a to 9c the method for mounting a locking device 10 on a door assembly 200 is illustrated.

[0069] First, at least one door arrangement 200 is provided with a frame 202 and at least one door leaf 204, which has recesses or cutouts as in connection with Figure 8 described.

[0070] Before, at the same time or after this, a locking device 10 is provided (see Figure 9a). This is positioned on the door leaf 204 after its provision. For this purpose, the drive device 14 is inserted into the recess 212, the coupling devices 25 are each inserted into the further recesses 216, and the face plate 12 is inserted into the recess 214. The locking device 10 is thus positioned in the installed position on the door leaf 204.

[0071] Thereafter, the face plate 12 is at least partially or completely screwed to the door leaf 204. The face plate 12 and the components of the locking device 10 attached thereto are thus fastened to the door leaf 204 (see Figure 9b ).

[0072] Before, at the same time, or afterward, the drive bolts 26, 27 are provided. After their provision, the drive bolts 26, 27 are each inserted into one of the locking channels 218 formed on the door leaf 204 (see Figure 9b ).

[0073] As the insertion process continues, the end sections of the drive bolts 26, 27 are inserted into the coupling device 25. When the respective end section is inserted into the respective receptacle 30 of the coupling device 25, the drive bolts 26, 27 are coupled to the coupling device 25 by locking.

[0074] If one or both of the shoot bolts 26, 27 are to be removed again, the actuating element 80 in the form of the screw 82 can be screwed through the passage 12' in the face plate 12 and the passage 22' in the drive rod 22 into the threaded section 60 in the form of the internal thread 62 of the locking element 50. If the screw 82 is then pulled outward away from the face plate 12, the locking element 50 is displaced from the coupled position toward the release position. The respective shoot bolt 26, 27 can then be pulled out of the respective locking channel 218 without the locking device 10 having to be dismantled or completely removed from the door leaf 204.

Claims

1. Locking device (10) for a door leaf (204) of a door assembly (200), with a faceplate (12), a drive means (14) attached to the faceplate (12), at least one drive rod (21, 22) extending along a longitudinal direction (20) and at least one drive bolt (26, 27), wherein the drive rod (21, 22) can be driven by means of the drive means (14) and can be displaced along the longitudinal direction (20) when driven by means of the drive means (14), wherein the drive rod (21, 22) is guided on the faceplate (12) by means of guide elements (23) coupled to the faceplate (12) and a coupling means (25) for coupling each of the drive bolts (26, 27) is attached to the at least one drive rod (21, 22), wherein the coupling means (25) has a receptacle (30) into which the drive bolt (26, 27) can be inserted with an end section (26'), characterized in that the coupling means (25) and the drive bolt (26, 27) are designed such that the drive bolt (26, 27) is coupled to the coupling means (25) by latching when the end section (26') is inserted into the receptacle (30).

2. Locking device (10) according to claim 1, characterized in that the coupling means (25) is designed such that the coupling of the drive bolt (26, 27) to the coupling means (25) is reversibly releasable.

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

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

5. Locking device (10) according to claim 3 or 4, characterized in that the locking element (50) has an insertion bevel (53), such that the locking element (50) can be displaced from the coupling position in the direction of the release position by inserting the end section (26') of the drive bolt (26, 27) into the recess (30).

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

7. Locking device (10) according to any of claims 3 to 6, 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 faceplate (12) each have a passage (12', 22') aligned with the threaded section (60), such that an actuating element (80) which has a counter-threaded section (81) corresponding to the threaded section (60) can be guided through the passage (12', 22') and coupled to the threaded section (60).

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

9. Locking device (10) according to claim 8, characterized in that the bore (61) with internal thread (62) is formed in a pin-shaped section (63), preferably protruding from the locking element (50), wherein the spring element (70) surrounds the pin-shaped section (63).

10. Locking device (10) according to any of claims 3 to 9, 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) connecting the flat sides (64) to one another, wherein the narrow sides (65) have a rounded contour.

11. Locking device (10) according to any of the preceding claims, characterized in that the receptacle (30) is arranged on the coupling means (25) in such a way that a drive bolt (26, 27) coupled to the coupling means (25) is arranged offset away from the drive rod (21, 22) on the side of the drive rod (21, 22) facing away from the faceplate (12).

12. Locking device (10) according to any of claims 3 to 11, characterized in that the housing (25') of the coupling means (25) has a flange section (28) for fastening the coupling means (25) to the drive rod (21, 22), in particular by riveting or screwing.

13. Locking device (10) according to either of the preceding claims, characterized in that the drive bolt (26, 27) has an end section (26'), a connecting section (26"), and / or a locking section (26‴).

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

15. Locking device (10) according to any of the preceding claims, characterized in that the receptacle (30) of the coupling means (25) has an insertion bevel (32').

16. Door assembly (200) having a frame (202) and at least one door leaf (204) pivotably mounted on the frame (202), wherein the door leaf (204) has a locking device (10) according to any of the preceding claims.

17. Door assembly (200) according to the preceding claim, characterized in that a recess (212) for the drive means (14), a clearance (214) for the faceplate (12), at least one further clearance (216) for the coupling means (25) and / or at least one bolt channel (218) for the drive bolt (26, 27) are formed in the door leaf (204).

18. Method for installing a locking device (10) according to any of claims 1 to 15, on a door assembly (200) having a frame (202) and at least one door leaf (204) pivotably mounted on the frame (202), the method comprising the following steps: a. inserting the drive means (14) into a recess (212) for the drive means (14) and inserting the at least one coupling means (25) into at least one further clearance (216), and inserting the faceplate (12) into a clearance (214) on the door leaf (204) for the faceplate (12); b. at least partially screwing the faceplate (12) to the door leaf (204); c. inserting at least one drive bolt (26, 27) into a corresponding bolt channel (218) formed on the door leaf (204) for the drive bolt; and d. inserting an end section of the drive bolt (26, 27) into the coupling means (25), wherein the drive bolt (26, 27) is coupled to the coupling means (25) by latching when the end section is inserted into a receptacle (30) of the coupling means (25).