Lock assembly, door leaf and burglary-resistant swing door

Abstract

A lock assembly (18) for a door leaf (12) of a hinged door (10) is described, which, in its simplest form, offers increased burglar resistance. In addition to a lock (20), which can be a simple mortise lock, the lock assembly (18) includes a reinforcing plate (24) that prevents the lock faceplate (40) from buckling during attempted break-ins.

Description

[0001] The invention relates to a lock arrangement for a door leaf of a burglar-resistant swing door. The invention further relates to a door leaf with such a lock arrangement and to a swing door equipped with such a door leaf.

[0002] For technological background and definition of terms, please refer to the following literature: [1] "BASIC KNOWLEDGE DOORS - Technical Handbook", Publisher: Hörmann KG Verkaufsgesellschaft, Upheider Weg 94-98, DE-33803 Steinhagen; Edition: 01 / 2019, downloaded on 04.04.2023 from https: / / cdn.hoermann-cloud.de / fileadmin / _country / kataloge / pdf / HOER-HANDBUCH-Bd-01-Grundwissen_2019_.pdf

[0003] For further information on the prior art of possible doors in which the lock arrangement according to embodiments of the invention is used, reference is made to the following literature references: [2] Company brochure “Steel Doors” of Hörmann KG Sales Company with the print note: Version 11.2022 / Print 11.2022 / HF 85115 DE / G.XXX, downloaded on 04.04.2023, https: / / www.hoermann.de / mediacenter / download / 93148de / 85115_STT_de _DE_1905.pdf?20230317105621; [3] Company brochure "STEEL CONSTRUCTION DOORS OD - Interior and exterior doors with and without fire protection requirements" of Hörmann KG Sales Company with the print date: Version 04.2022 / Print 04.2022 / HF 85375 DE / G.XXX, downloaded on 04.04.2023, https: / / www.hoermann.de / mediacenter / download / 127277de / RZ_25352100 9_85375_SOT_2105_de_DE.pdf?20230309102157 [4] Company brochure "Steel and stainless steel construction doors STS / STU - High-quality door construction for sophisticated architecture" of Hörmann KG Sales Company with the print date: Version 06.2020 / Print 06.2020 / HF 86463 de / G.XXX, downloaded on 04.04.2023, https: / / www.hoermann.de / mediacenter / download / 203255de / Stahl_und_Ed elstahl_Objekttueren_STS_STU_86463_DE.pdf?20230309151419 .

[0004] The invention relates to a lock arrangement for burglar-resistant swing doors. A burglar-resistant door is understood to be a door with at least resistance class RC2 according to DIN EN 1627 (or higher, in particular RC3), see in particular reference [1], pp. 58 to 61.

[0005] Hinged doors without burglar resistance are usually equipped with mortise locks that only offer one bolt and therefore only a single-point locking mechanism.

[0006] To reliably achieve burglar resistance class RC3, multi-point locking systems, specifically multi-point locking arrangements with several vertically spaced bolts on the lock-side face, have been used in the doors referenced in literature [2] to [4] for hinged doors. Doors with only a single-point locking system are also available on the market, but these have proven to be less effective in terms of burglar protection during testing. Furthermore, a lock arrangement with a reinforcing plate according to the preamble of claim 1 is known from US 2017 / 159326 A1.

[0007] The invention aims to provide a locking arrangement that offers a significant increase in performance with regard to burglary resistance while being simpler and more cost-effective.

[0008] To solve this problem, the invention provides a lock arrangement according to claim 1. A door leaf provided therewith and a door provided therewith are the subject of the dependent claims.

[0009] Advantageous embodiments are the subject of the dependent claims.

[0010] The invention provides a lock assembly for a door leaf of a burglar-resistant swing door, the lock assembly comprising a lock and a reinforcement plate. The lock has a lock case for insertion into a lock pocket of the door leaf, a faceplate for resting on a rim around an opening of the lock pocket and for attaching the lock to the door leaf, a latch, and a bolt. The reinforcement plate is designed to cover the faceplate and has a bearing surface on a side facing the lock, a receiving groove for receiving the faceplate, which is surrounded by an edge area where the bearing surface is formed and thus also forms a recess in the receiving surface on the side facing the lock, a bolt opening for guiding the bolt, a latch opening for guiding the latch, and a fastening device for attaching the reinforcement plate to the door leaf.

[0011] It is preferred that the reinforcing plate has a wedge-shaped cross-section.

[0012] It is preferred that the reinforcement plate on the side facing away from the lock has a surface that extends obliquely to the bearing surface.

[0013] It is preferred that the reinforcement plate is thinner on the side facing in the closing direction during intended use than on the side facing away from the closing direction during intended use.

[0014] It is preferred that the reinforcement plate has a rectangular cross-section.

[0015] It is preferred that the receiving groove of the reinforcement plate is adapted to the outer contour of the mullion.

[0016] It is preferred that the receiving groove of the reinforcement plate has rounded end areas.

[0017] It is preferred that the receiving groove of the reinforcement plate is designed to allow for flush reception of the sleeve.

[0018] It is preferred that the fastening device is formed on a section of the edge area which is formed on a side facing away from the direction of closing.

[0019] It is preferred that the fastening device has at least one fastening opening for a fastener, which, viewed in the closing direction, is located behind the latch opening and / or behind the bolt opening.

[0020] It is preferred that the fastening device has at least one countersunk screw opening as a fastening opening.

[0021] It is preferred that the fastening device is formed on a section of the edge area on a first side that is thicker and / or wider than a section of the edge area on an opposite second side.

[0022] Preferably, the lock is selected from the group that includes a mortise lock, a profile cylinder lock, a single-bolt lock for single-point locking, and combinations of the aforementioned locks. Even when a single-bolt mortise lock is used, so that the lock assembly is equipped for single-point locking, the reinforcement plate achieves significantly improved burglar resistance compared to previous single-point locking swing doors offered as burglar-resistant.

[0023] Preferably, the lock assembly further comprises a flat, elongated and strip-shaped reinforcement element for installation in a lock-side end face area of ​​the door leaf and for reinforcing a lock-side end face of the door leaf, wherein the reinforcement element has the rim around the opening of the lock pocket and fastening openings for fastening the faceplate and for fastening the reinforcement plate.

[0024] It is preferred that the reinforcing element is designed as a reinforcing flat steel element, i.e. as a flat steel for reinforcement.

[0025] It is preferred that the reinforcement element has a recessed area for receiving the sleeve and reinforcement plate.

[0026] It is preferred that the reinforcing element has bends to form a recess in the area of ​​the lock.

[0027] According to another aspect, the invention creates a door leaf for a burglar-resistant swing door with a lock arrangement according to one of the preceding embodiments.

[0028] In a preferred embodiment of the door leaf, the mullion and the reinforcement plate are received on the lock-side end face in a recessed recess, the edge of which extends up to the reinforcement plate.

[0029] In a preferred embodiment of the door leaf, the reinforcing element extends over a large portion of the height and a large portion of the width of the lock-side end face of the door leaf, extending in the direction of the door leaf's thickness. "Large portion" here means more than half.

[0030] In a preferred embodiment of the door leaf, it is provided that the reinforcing element is covered by a sleeve of the door leaf.

[0031] Preferably, the door leaf is designed in a box / lid construction with a box sheet and a lid sheet.

[0032] According to another aspect, the invention creates a hinged door comprising a door leaf according to one of the preceding embodiments and a frame.

[0033] An exemplary embodiment is explained in more detail below with reference to the accompanying drawings. These show: Fig. 1 a front view of a hinge side of a burglar-resistant swing door; Fig. 2 a section through a lock area of ​​the swing door according to a first embodiment along line AA of Fig. 1 ; Fig. 3 a perspective exploded view of a hinged door of Fig. 1 according to the embodiment of Fig. 2 lock arrangement used in a first embodiment; Fig. 4 the enlarged detail E of Fig. 3Fig. 5 shows a top view of a surface of the reinforcement plate of the lock assembly. Figs. 3 and 4 according to the first embodiment, wherein the surface in intended use as in Fig. 2 shown on a lock-side end face of a door leaf of the swing door, pointing outwards and, in the closed position of the swing door, towards a counter bearing on a frame of the swing door; Fig. 6 a side view of the reinforcement plate according to the first embodiment from left to right. Fig. 5 seen; Fig. 7 a bottom view of the reinforcement plate according to the first embodiment, showing one side of the reinforcement plate which, in its intended use, is directed towards a lock of the lock assembly; Fig. 8 a section through the reinforcement plate according to the first embodiment along line BB of Fig. 5 ; Fig. 9 Fig. 2corresponding section through a lock area of ​​the swing door according to a second embodiment along line AA of Fig. 1 ; Fig. 10 Fig. 3 corresponding perspective exploded view of a hinged door of Fig. 1 in the second embodiment according to Fig. 9 used lock arrangement; Fig. 11 the enlarged detail E of Fig. 10 ; Fig. 12 Fig. 5 corresponding top view of a surface of the reinforcement plate of the lock assembly of Fig. 9 and 10 according to the second embodiment, wherein the surface in intended use as in Fig. 9 shown on a lock-side end face of a door leaf of the swing door, pointing outwards and, in the closed position of the swing door, towards a counter bearing on a frame of the swing door; Fig. 13 Fig. 6corresponding side view of the reinforcement plate according to the second embodiment from the left in Fig. 12 seen; Fig. 14 a corresponding underside view of the reinforcement plate according to the second embodiment, showing one side of the reinforcement plate which, in its intended use, is directed towards a lock of the lock assembly; and Fig. 15 a Fig. 8 corresponding cut through the reinforcement plate according to the second embodiment along line BB of Fig. 12 .

[0034] Fig. 1, 2 and 9Figure 1 shows different embodiments of a burglar-resistant swing door 10 with at least resistance class RC2 or preferably RC3. The swing door 10 has a door leaf 12 and a frame 14. The door leaf 12 is pivotally connected to the frame 14 about a vertical axis defined by hinges 16. The door leaf 12 has a lock assembly 18, a first embodiment of which is shown in the Figs. 2 to 4 is shown and a second embodiment with the Figs. 2 to 4 corresponding views in the Figs. 9 to 11 The lock assembly 18 comprises a lock 20 and a reinforcement plate 22, wherein, according to the first embodiment, the reinforcement plate 22 is individually inserted into the Figs. 5 to 8 and the reinforcement plate 22 according to the second embodiment individually with corresponding views in the Figs. 12 to 15 The illustrated embodiments further include a reinforcing element 24.

[0035] Fig. 2 shows a section through a lock area 26 of the swing door 10 according to the first embodiment, while Fig. 9 the Fig. 2 The corresponding section according to the second embodiment is shown. The door leaf 12 is designed as a sheet metal door leaf in a box-and-lid construction and has a box plate 28 and a cover plate 30, which together form a casing 31 of the door leaf. Furthermore, a filling 32 is provided in the cavity between the box plate 28 and the cover plate 30. On the lock-side end face 34, which in the illustrated closed state of the swing door 10 faces a strike plate 38 on the frame 14, a recessed recess 36 is provided for receiving the reinforcement plate 22 and a strike plate 40 of the lock 20. A lock pocket 41 is provided in the filling 32 in the lock area 26.

[0036] The boundary of the recording 36 is formed by the mantle 27, which extends exactly to the reinforcement plate 22.

[0037] The lock arrangement 18 according to the first and second embodiments is shown as an exploded view in the Figs. 3 and 4 (first embodiment) and the Figs. 10 and 11 (second embodiment) shown. As can be seen therefrom, the lock 20 is a mortise lock with the faceplate 40, a lock case 42, a latch 44 and a bolt 46.

[0038] The reinforcing element 24 is flat and strip-shaped and made of a material resistant to tool attack, such as metal, more specifically steel. In particular, the reinforcing element is designed as a flat steel bar. As in particular made of Fig. 3 and Fig. 2The reinforcing element 24, which can be removed at points 10 and 9, is installed in the end face of the door leaf 12, extending over the height and thickness of the door leaf 12 within the cavity almost to the inner side of the casing 27. This significantly stiffens and reinforces the end face, providing high resistance to tool attacks during break-in attempts. The reinforcing element 24 is overlapped at the end face 34 by bent edges 48 of the casing 27. In the center of the reinforcing element 24, which is located in the lock area 26 during normal use, a recessed area 50 is formed by deep drawing and is bounded by offsets 52. A through-opening for the lock case is provided in the recessed area 50, forming an edge 54 of the opening of the lock pocket 41.Furthermore, several fastening openings 56 with internal threads for receiving fastening screws 58 - designed here as countersunk screws - are provided in the recessed area 50.

[0039] As from Figs. 2 to 4 for the first embodiment and from the Figs. 9 to 11 As can be seen in the second embodiment, the lock case 42 is inserted into the lock pocket 41 of the door leaf 12 during its intended use. The faceplate 40 rests on the rim 54 around the opening of the lock pocket 40 and thus, in this case, on the recessed area 50 of the reinforcing element 24. The faceplate 40 serves to fasten the lock 20 to the door leaf 12. For this purpose, fastening screws 58 (not shown in detail) are inserted into screw holes 60 on the faceplate 40, which are designed to fully accommodate the countersunk heads of the fastening screws 58.

[0040] The illustrations show the hinged door 10 as DIN right-hand opening. DIN left-hand opening is achieved by a correspondingly mirrored design. Accordingly, the door opens by moving the door leaf 12 downwards. Fig. 2 and 9 The closing direction is the upward direction. Fig. 2 and 9 , which is also where the slope of trap 44 points.

[0041] The reinforcement plate 22 is in Fig. 2 and 9 in its installed state, in the Figs. 3 and 4 as well as 10 and 11 in exploded view together with the lock 20 and in the Figs. 5 to 8as well as 12 to 15 shown separately in different views. As can be seen from these figures, the reinforcement plate 22 is designed to completely cover the strike plate 40. The reinforcement plate 22 has a bearing surface 62 on the side 61 facing the lock 20, which, in normal use, rests on the recessed area 50 of the reinforcement element 24 or, in other embodiments not shown in detail, on another reinforced end face area of ​​the door leaf 12.

[0042] On this side 61, which is to face the lock 20, a receiving groove 64 for receiving the strike plate 40 is provided within the bearing surface 62.

[0043] The receiving groove 64 is surrounded by a rim region 68 that is thicker relative to the wall 66, which forms the base of the receiving groove 64, and on which the bearing surface 62 is formed. A bolt opening 70 for the passage of the bolt 46 and a latch opening 72 for the passage of the latch 44 are provided in the wall 66.

[0044] In the edge area 68, a fastening device 74 is provided for fastening the reinforcement plate 22 to the door leaf 12, in particular for fastening to the reinforcement element 24 installed in the door leaf 12.

[0045] How to interpret the representations of Fig. 2 and 8As can be seen, the reinforcement plate 22 according to the first embodiment has a wedge-shaped cross-section. In particular, the reinforcement plate 22 according to the first embodiment has a surface 76 on the side 75 facing the lock 20, which extends obliquely to the bearing surface 62. The oblique shape is such that the reinforcement plate 22 is thinner on the side 78 facing in the closing direction during intended use than on the side 80 facing away from the closing direction during intended use. The correspondingly thinner side 78 is, as can be seen Fig. 2The reinforcement plate 22 can be removed when installed in the recessed recess 36, as is completely or almost completely covered by the sleeve 27, so that no step or at most a minimal step is created that does not offer an attack surface for burglary tools of tool sets A1 to A3 of DIN EN 1627. Furthermore, the wedge shape deflects the tools away from the lock and its faceplate 40 during penetration.

[0046] How to interpret the representations of Fig. 9 and 15 As can be seen, the reinforcement plate 22 according to the second embodiment has a rectangular outer contour in cross-section. This allows the reinforcement plate 22 to be manufactured more cost-effectively, while still offering comparably good reinforcement and thus also significantly improving burglary protection, especially when using single-point locking mechanisms.

[0047] In both embodiments shown here, the receiving groove 64 of the reinforcement plate 22 is adapted to the outer contour of the strike plate 40, so that the strike plate 40 is enclosed as closely as possible by the reinforcement plate 22. For this purpose, the receiving groove 64 has rounded end regions 82 corresponding to the shape of the ends of the strike plate 40. The depth of the receiving groove 64 is selected such that it is designed to provide a flush fit for the strike plate 40.

[0048] How to get the Figs. 4 to 8 and 11 to 15As can be seen, the fastening device 74 is formed on the thicker and / or wider section of the edge area 68, which is located on the side 80 facing away from the direction of closing. Thus, the fastening device 74 is attached to the more substantial area of ​​the reinforcement plate 22 and is therefore very robust. In the closed position of the door, it is well covered, in particular, by a rebate 84 of the door leaf 12. The fastening device 74 has a first and a second fastening opening 86, 88 for one of the fastening screws 58. The first fastening opening 86 is located behind the latch opening 72 when viewed in the direction of closing, and the second fastening opening is located behind the bolt opening 70 when viewed in the direction of closing. This ensures that the fastening screws 58 are well protected between the latch 44 and the rebate 84, and between the bolt 46 and the rebate 84, respectively.The first and second fastening openings 86, 88 are each designed as countersunk screw openings that can fully accommodate the countersunk screw head.

[0049] Thus, a lock assembly 18 for a door leaf 12 of a hinged door 10 has been described, which, in its simplest form, offers increased burglar resistance. In addition to a lock 20, which can be designed as a simple mortise lock, the lock assembly 18 includes a reinforcing plate 22 that prevents the lock faceplate 40 from buckling during attempted break-ins.

[0050] The reinforcement plate 22 is made of a suitable material that is resistant to attack by tools of tool sets A1 to A3 according to DIN EN 1627. In particular, the reinforcement plate 22 is made of solid metal, more specifically steel.

[0051] In the Figs. 5 to 8Figures 12 to 15 are examples of the dimensions of the reinforcement plate 22, which are adapted to DIN mortise locks and a standard door thickness. Further embodiments of the reinforcement plate 22 have dimensions in which one or more of the values ​​are reduced by 0 to 50%, in particular by 2% to 20%, from those given in the Figs. 5 to 8 or values ​​may differ by 12 to 15.

[0052] Otherwise, the hinged door 10, in particular its door leaf 12 and its frame 14, can be designed as shown in various versions in the literature references [2], [3] and [4], to which reference is hereby expressly made for further details. Reference symbol list:

[0053] 10 Hinged door 12 Door leaf 14 Frame 16 Hinge 18 Lock assembly 20 Lock 22 Reinforcement plate 24 Reinforcement element 26 Lock area 27 Casing 28 Case plate 30 Cover plate 32 Infill 34 Lock-side face 36 Recessed receptacle 38 Strike plate 40 Faceplate 41 Lock pocket 42 Lock case 44 Latch 46 Bolt 48 Edge of the casing 50 Recessed area 52 Offset 54 Edge (of the lock pocket opening) 56 Mounting opening 58 Mounting screw 60 Screw opening (on the faceplate) 61 Side facing the lock 62 Bearing surface 64 Receptacle groove 66 Wall 68 Edge area 70 Bolt opening 72 Latch opening 74 Fastening device 75 Side facing away from the lock 76 Surface 78 Side facing in the direction of closing 80 Side facing away from the direction of closing 82 End area 84 Rebate 86 First fastening opening 88 Second fastening opening

Claims

1. Lock assembly (18) for a door leaf (12) of a burglary-resistant swing door (10), the lock assembly comprising: a lock (20) having a lock case (42) for insertion into a lock pocket (41) of the door leaf (12), a faceplate (40) to be placed on an edge (54) around a mouth of the lock pocket (41) and for fixing the lock (20) to the door leaf (12), a latch (44), and a bolt (46) and a reinforcing plate (22) for covering the faceplate (40), which reinforcing plate has a bearing surface (62) on a side (61) to be turned to the lock, wherein the reinforcing plate (2) further comprises a bolt opening (70) for passing the bolt (46) through, a latch opening (72) for passing the latch (44) through, and a fixing device (74) for fixing the reinforcing plate (22) to the door leaf (12), characterized in that the reinforcing plate (22) has a receiving groove (64) for receiving the faceplate (40), which reinforcing plate is surrounded by an edge region (68) on which the bearing surface (62) is formed.

2. Lock assembly (18) according to claim 1, characterized in that the reinforcing plate (22) 2.1 is wedge-shaped in cross section and / or 2.2 has a surface (76) on the side (75) to be turned away from the lock, which surface extends obliquely relative to the bearing surface (62), and / or 2.3 is formed thinner on the side (78) pointing in the closing direction when used as intended than on the side (80) pointing away from the closing direction when used as intended.

3. Lock assembly (18) according to claim 1, characterized in that the reinforcing plate (22) is rectangular in cross section.

4. Lock assembly (18) according to any of the preceding claims, wherein the receiving groove (64) of the reinforcing plate (22) 4.1 is adapted to the outer contour of the faceplate (40) and / or 4.2 has rounded end portions (82) and / or 4.3 is designed for flush mounting of the faceplate (40).

5. Lock assembly (18) according to any of the preceding claims, characterized in that the fixing device (74) 5.1 is formed at one section of the edge region (68) which is formed on a side (80) facing away from the closing direction, 5.2 is formed at a section of the edge region (68) on a first side (80), which section is thicker and / or larger than a section of the edge region (68) on an opposite second side (75); and / or 5.3 includes a least one mounting hole (86, 88) for a fastener, which mounting hole is located behind the latch opening (72) and / or behind the bolt opening (70) viewed in the closing direction; and / or 5.4 comprises at least one countersunk screw opening as a mounting hole (86, 88).

6. Lock assembly (18) according to any of the preceding claims, characterized in that the lock (20) is chosen from the group which comprises a mortise lock, a profile cylinder lock, a lock with only one bolt for single-point locking, and combinations of the aforementioned locks.

7. Lock assembly (18) according to any of the preceding claims, further comprising an elongated reinforcing element (24) for installation into a lock-side end face region of the door leaf (12) and for reinforcing a lock-side end face of the door leaf (12), wherein the reinforcing element (24) includes the edge (54) around the mouth of the lock pocket (41) and mounting holes (56) for mounting the faceplate (40) and for fastening the reinforcing plate (22).

8. Lock assembly (18) according to claim 7, characterized in that the reinforcing element (22) 8.

1. is formed as a reinforcing flat steel and / or 8.2 includes a recessed area (50) for receiving the faceplate (40) and the reinforcing plate (22) and / or 8.3 includes a bent section (52) for forming a recess (50) in the region of the lock (20).

9. Door leaf (12) for a burglary-resistant swing door (10) with a lock assembly (18) according to any of the preceding claims.

10. Door leaf (12) according to claim 9, characterized in that the faceplate (40) and the reinforcing plate (22) are accommodated, at the lock-side end face (34), in a recessed receptacle (36) the edge (48) of which reaches up to the reinforcing plate (22).

11. Door leaf (12) according to any of claims 9 or 10, comprising a lock assembly (18) according to any of claims 7 or 8, wherein the reinforcing element (24) 11.1 extends across a large part of the height and a large part of the width of the lock-side end face (34) extending in the thickness direction of the door leaf (12) in the door leaf (12); and / or 11.2 is overlapped by a casing (27) of the door leaf (12).

12. Door leaf (12) according to any of claims 9 to 11, formed in the box / lid design with a box sheet metal plate (28) and a cover sheet metal plate (30).

13. Swing door (10), comprising a door leaf (12) according to any of claims 9 to 12 and a frame (14).

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