LOCKING DEVICE, DOOR ASSEMBLY HAVING SUCH A LOCKING DEVICE AND METHOD FOR INSTALLING SUCH A LOCKING DEVICE

Abstract

The invention relates to a locking device for a door leaf of a door assembly, having a faceplate, a drive means attached to the face plate, and at least one drive rod extending along a longitudinal direction, wherein the drive rod can be driven by the drive means and can be displaced along the longitudinal direction when driven by the drive means, wherein a respective coupling means for coupling to a drive bolt is attached to the at least one drive rod, wherein the coupling means has a receptacle in which the drive bolt can be inserted with an end section, wherein the coupling means and the drive bolt are configured such that the drive bolt is coupled to the coupling means by latching when the end section is inserted into the receptacle. A door assembly and a method for installing a locking device on the door assembly are disclosed.

Claims

1. A locking device for a door leaf of a door assembly, comprising: a faceplate, a mortise lock having one or more locking elements attached to the faceplate, at least one drive rod extending along a longitudinal direction, and at least one drive bolt, wherein the drive rod is configured to be driven by the mortise lock and is configured to be displaced along the longitudinal direction when driven by the mortise lock, wherein the drive rod is guided on the faceplate by means of guide elements coupled to the faceplate, a coupling means for coupling the at least one drive bolt, the coupling means being attached to the at least one drive rod and arranged outside the mortise lock, wherein the coupling means has a receptacle into which the drive bolt is configured to be inserted with an end section, and wherein the coupling means and the drive bolt are designed such that the drive bolt is coupled to the coupling means by latching when the end section is inserted into the receptacle.

2. The locking device according to claim 1, wherein the coupling means is designed such that the coupling of the drive bolt to the coupling means is reversibly releasable.

3. The locking device according to claim 1, wherein the coupling means has a housing in which a locking element is displaceably mounted, wherein the locking element is displaceable between a coupling position in which the locking element engages in the receptacle for coupling with the drive bolt, and a release position in which the locking element releases the receptacle for decoupling the drive bolt.

4. The locking device according to claim 3, wherein the locking element is preloaded into the coupling position by means of a spring element, in particular by means of a compression spring.

5. The locking device according to claim 3, wherein the locking element has an insertion bevel, such that the locking element can be displaced from the coupling position in the direction of the release position by inserting the end section of the drive bolt into the recess.

6. The locking device according to claim 3, wherein the locking element has a first profile feature at its distal end, wherein the receptacle has 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 one another when the locking element is in the coupling position.

7. The locking device according to claim 3, wherein the locking element has a threaded section at its proximal end, and the drive rod and/or the faceplate each have a passage aligned with the threaded section, such that an actuating element which has a counter-threaded section corresponding to the threaded section can be guided through the passage and coupled to the threaded section.

8. The locking device according to claim 7, wherein the threaded section is designed as a bore with an internal thread and/or that the actuating element with counter-threaded section is designed as a screw with an external thread.

9. The locking device according to claim 8, wherein the bore with internal thread is formed in a pin-shaped section, preferably protruding from the locking element, wherein the spring element surrounds the pin-shaped section.

10. The locking device according to claim 3, wherein the locking element has a cross-section which is delimited by two mutually opposite, preferably mutually parallel, flat sides and two mutually opposite narrow sides connecting the flat sides to one another, wherein the narrow sides have a rounded contour.

11. The locking device according to claim 1, wherein the receptacle is arranged on the coupling means in such a way that a drive bolt coupled to the coupling means is arranged offset away from the drive rod on the side of the drive rod facing away from the faceplate.

12. The locking device according to claim 1, wherein the housing of the coupling means has a flange section for fastening the coupling means to the drive rod, in particular by riveting or screwing.

13. The locking device according to claim 11, wherein the drive bolt has an end section, a connecting section, and/or a locking section.

14. The locking device according to claim 1, wherein the locking device has an insertion or centering aid for the drive bolt.

15. The locking device according to claim 1, wherein the receptacle of the coupling means has an insertion bevel.

16. A door assembly having a frame and at least one door leaf pivotably mounted on the frame, wherein the door leaf has a locking device according to any of the preceding claims.

17. The door assembly according to claim 16, wherein a recess for the mortise lock, a clearance for the faceplate, at least one further clearance for the coupling means and/or at least one bolt channel for the drive bolt are formed in the door leaf.

18. A method for installing a locking device according to claim 1, on a door assembly having a frame and at least one door leaf pivotably mounted on the frame, the method comprising the following steps: a. inserting the mortise lock into a recess for the mortise lock and inserting the at least one coupling means into at least one further clearance, and inserting the faceplate into a clearance 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 corresponding bolt channel formed on the door leaf for the drive bolt; and d. inserting an end section of the drive bolt into the coupling means, wherein the drive bolt is coupled to the coupling means by latching when the end section is inserted into a receptacle of the coupling means.

Description

BRIEF DESCRIPTIONS OF THE DRAWINGS

[0041] The invention is explained in more detail below with reference to the figures, wherein identical or functionally identical elements are provided with identical reference signs, but, where applicable, only once. In the drawings:

[0042] FIG. 1a is a door assembly with a frame, two door leaves pivotably mounted on the frame, one of which is equipped with a locking device, in a front view;

[0043] FIG. 1b is the door leaf equipped with the locking device, with a view of the exposed end face of the door leaf (opposite the hinge side);

[0044] FIG. 2a,b is the locking device in isolation, with a view of the faceplate (FIG. 2a) and in a partially sectioned side view (FIG. 2b);

[0045] FIG. 3 is the locking device in a partially sectioned exploded view;

[0046] FIG. 4a-c is the coupling means of the locking device in a perspective view (FIG. 4a), in a longitudinal section (FIG. 4b) and in an enlarged and sectional partial view (FIG. 4c);

[0047] FIG. 5a,b is the coupling means of the locking device in an exploded view (FIG. 5a) and an enlarged exploded view (FIG. 5b);

[0048] FIG. 6a-d is the locking element of the coupling means in an isometric view (FIG. 6a), a perspective view of the distal end of the locking element (FIG. 6b), a longitudinal section (FIG. 6c) and in a plan view of the distal end of the locking element (FIG. 6d);

[0049] FIG. 7a-d is the housing of the coupling means in an isometric view (FIG. 7a), a side view (FIG. 7b), a longitudinal section (FIG. 7c) and a top view with a view of the receiving opening for the locking element (FIG. 7d);

[0050] FIG. 8 is a longitudinal section through a section of a door leaf of the door assembly; and

[0051] FIG. 9a-c is the method steps for installing the locking device on a door leaf of a door assembly, in multiple partially sectioned views.

DETAILED DESCRIPTION

[0052] FIG. 1a is a door assembly, which is designated as a whole by the reference numeral 200. The door assembly 200 has 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 pivotably 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 (indicated in FIG. 1a by a dashed box 10). The locking device 10 is described in more detail further below.

[0053] FIG. 1b shows the first door leaf 204 equipped with the locking device 10, with a view of its end face 205. There, a part of the locking device 10 can be seen, in particular its faceplate 12.

[0054] FIGS. 2a, 2b and 3 show the locking device 10 in different views, each in a stand-alone position. The locking device 10 has the faceplate 12 and a drive means 14 attached to the faceplate 12. In the example, the drive means 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 handle follower 19.

[0055] 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 faceplate 12. The drive rods 21, 22 can be driven by means of the drive means 14 and, when driven by means of the drive means 14, can be displaced along the longitudinal direction 20. Specifically, the lock gear 16 can be driven by actuating the handle follower 19, wherein, for example, the latch 17 and also the drive rods 21, 22 are displaced accordingly.

[0056] The drive rods 21, 22 are each coupled to the drive means 14, in particular coupled to its lock gear 16, and guided on the faceplate 12 by means of guide elements 23 coupled to the faceplate 12. In the example, the guide elements 23 engage in corresponding recesses 24 in the drive rods 21, 22.

[0057] A coupling means 25 for coupling a drive bolt 26, 27 (cf. FIG. 1b, 9a or 9b) is attached to each of the drive rods 21, 22.

[0058] The structure and functioning of the coupling means 25 are described in more detail with reference to FIGS. 4a to 7d, using the example of the drive rod 22. The drive rod 21 and its coupling means 25 are constructed analogously.

[0059] The coupling means 25 has a housing 25 which has a flange section 28, via which the housing 25 of the coupling means 25 is fastened to the drive rod 22. In the example, the housing 25 is attached to the drive rod 22 via two fastening points 29, e.g. screwed or riveted (only shown schematically).

[0060] In the housing 25 of the coupling means 25, a receptacle 30 for an end section of a drive bolt 26, 27 is formed. In the example, the receptacle 30 is designed as a receiving slot 31 which is open to the outside only towards its insertion opening 32. The receptacle 30 has an insertion bevel 32 which widens conically opposite to the insertion direction of the drive bolt 26, 27 (i.e. from the insertion opening 32 outwards). Furthermore, a locking element guide opening 33 is formed in the housing 25, which is open towards the flange section 30 (i.e. upwards towards the drive rod 22) and opens into the receptacle 30.

[0061] 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 is displaceable between a coupling position (cf. 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 uncovers the receptacle 30 for decoupling the drive bolt 26, 27 (the locking element 50 is at least partially or completely displaced out of the receptacle 30 in the release position). The coupling means 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.

[0062] The locking element 50 is preloaded into the coupling position, i.e., away from the drive rod 22, by means of a spring element 70in 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 receptacle sections 35 are formed on the locking element guide opening 33 (cf. FIG. 4c or 5b), and widen 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.

[0063] At the distal end 51, the locking element 50 has an insertion bevel 53. As a result, the locking element 50 can be displaced from the coupling position (cf. FIG. 4c) towards the release position (release position not shown) by inserting an end section of the drive bolt 26, 27 into the recess 30.

[0064] The locking element 50 has a first profile feature 54 at its distal end 51 (cf. FIG. 4c). The first profile feature 54 is designed as a recess 55 with wall sections 56 on the edges projecting beyond the recess 55 (cf. FIG. 6b or 6d). The receptacle 30 has a second profile feature 57 that corresponds to the first profile feature 54 and is complementary in the example. The second profile feature 57 is designed as a projection 58 with a recess 59 on the edge, in the example in a U-shape (cf. FIG. 7d). The first profile feature 54 and the second profile feature 57 engage with each other to provide anti-jamming protection when the locking element 50 is in the coupling position (cf. FIG. 4c).

[0065] At its proximal end 52, the locking element 50 has a threaded section 60. The threaded section 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 section 63 protruding from the locking element 50, wherein the spring element 70 surrounds the pin-shaped section 63 in the assembled state (cf. FIG. 4c).

[0066] The drive rod 22 and the faceplate 12 each have a passage 12, 22 aligned with the threaded section 60 (cf. for example, FIGS. 2a, 2b and FIG. 3). Thus, an actuating element 80, which has a counter-threaded section 81 corresponding to the threaded section 60, can be passed 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. FIGS. 2a and 2b). Thus, by means of the actuating element 80, the locking element 50 can be actuated through the faceplate 12 and the drive rod 22for example, it can be moved from the coupling position to the release position. As a result, a drive bolt 26, 27 can be uncoupled from the coupling means 25 from the outside without dismantling the locking device 10.

[0067] 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 to one another, wherein the narrow sides 65 have a rounded, in the example each semicircular contour (cf. FIG. 6d). The locking element guide opening 33 has, at least in sections, a cross-section complementary to the locking element 50 (cf. FIG. 7d). Spring receptacle sections 35 for the spring element 70 are formed in flat sides 84 of the locking element guide opening 33.

[0068] 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 22 on the side of the drive rod 22 facing away from the faceplate 12 (cf. FIG. 9c).

[0069] The structure of the drive bolt is explained using the drive bolt 26 as an example. The drive bolt 26 has an end section 26 (insertion section), a connecting section 26 and a locking section 26 (cf. FIG. 9b). The end section 26 serves to couple the drive bolt 26 to the coupling means 25. The locking section 26 serves for locking engagement with a door frame 202 (cf. FIGS. 1a and b). The connecting section 26 lies between the end section 26 and the locking section 26 and connects them together. In the end section 26, a passage D is formed for engagement with the locking element 50.

[0070] 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 (cf. FIG. 9b).

[0071] As already explained above, the coupling means 25 for coupling the drive bolt 27 is attached to the drive rod 22. The coupling means 25 has the receptacle 30 into which the drive bolt 27 can be inserted with its end section 27. The coupling means 25 and the drive bolt 27 are designed such that the drive bolt 27 is coupled to the coupling means 25 by latching when the end section 27 is inserted into the receptacle 30.

[0072] The coupling means 25 is designed such that the coupling of the drive bolt 27 to the coupling means 25 is reversibly releasable. 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 uncoupled from the coupling means 25 and removed.

[0073] FIG. 8 shows a section of the first door leaf 204 in a longitudinal section. A recess 212 for the drive means 14 is formed in the door leaf 204. In addition, a clearance 214 for the faceplate 12 is formed in the door leaf 204. Two further clearances 216 are formed in the door leaf 204one for each coupling means 30. In addition, two concealed bolt channels 218 (offset inwards in the door leaf 204) are formed in the door leaf 204, each for a drive bolt 26, 27. The bolt channels 218 each extend from one of the further clearances 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 bolt channels 218 in the end region adjacent to the further clearance 216 (cf. FIG. 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 expands against the insertion direction starting from the drive bolt cross-section, as explained above.

[0074] FIGS. 9a to 9c illustrate the method for installing a locking device 10 on a door assembly 200.

[0075] First, at least one door assembly 200 is provided, and has a frame 202 and at least one door leaf 204 which has recesses or clearances as described in connection with FIG. 8.

[0076] Before, at the same time, or after this, a locking device 10 is provided (cf. FIG. 9a). This is positioned on the door leaf 204 after it has been provided. For this purpose, the drive means 14 is inserted into the recess 212, the coupling means 25 are each inserted into the further clearances 216 and the faceplate 12 is inserted into the clearance 214. The locking device 10 is thus positioned in the installation position on the door leaf 204.

[0077] Thereafter, the faceplate 12 is at least partially or completely screwed to the door leaf 204. The faceplate 12 and the components of the locking device 10 attached thereto are thus fastened to the door leaf 204 (cf. FIG. 9b).

[0078] Before, at the same time or after this, the drive bolts 26, 27 are provided. After their provision, the drive bolts 26, 27 are each inserted into one of the bolt channels 218 formed on the door leaf 204 (cf. FIG. 9b).

[0079] As the insertion process continues, the end sections of the drive bolts 26, 27 are inserted into the coupling means 25. The drive bolts 26, 27 are coupled to the coupling means 25 by latching when the respective end section is inserted into the respective receptacle 30 of the coupling means 25.

[0080] If one or both of the drive 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 faceplate 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 outwards away from the faceplate 12, the locking element 50 is displaced from the coupling position towards the release position. The respective drive bolts 26, 27 can then be pulled out of the respective bolt channels 218 without the locking device 10 having to be dismantled or completely removed from the door leaf 204.