EP4215702B1 - Locking device - Google Patents

Description

The invention relates to a locking device with the features of the preamble of claim 1. The invention also relates to a door arrangement with the features of the independent claim.

Locking devices of the type mentioned are known from the prior art, for example EP 3 070 238 A1 . With such a locking device, a secure and stable locking of, for example, a door leaf on a door frame is possible. However, the drive rods of this locking device are only protected by the faceplate and the door leaf. You can get it Due to damage to the door leaf, unauthorized access to the drive rods, for example in an attempted break-in, the drive rods can be moved and the door opened by appropriate manipulation if necessary.

US 5,042,852 discloses a drive bolt lock that is mounted on a door leaf. To protect the otherwise exposed lower drive rod and its guide, a U-shaped cover is provided, which is intended to protect the lower drive rod and guide from damage. Since the cover, the drive rod and their guide take up a lot of space, this drive bolt lock is only suitable for mounting on a door leaf.

AT 350 432 B shows a tilt-and-turn sash, with a protective tube for a push rod being arranged on the overlap of a cross beam and a vertical spar of the tilt-and-turn sash. This is intended to give the impression of a concealed drive rod despite installation. The protective tube is designed as an extruded plastic profile. Due to the lack of a burglary-inhibiting effect, this protective tube is only suitable for mounting on an overlap of the tilt-and-turn sash on the secured side of the window (inside of the sash).

EP 3 162 993 A1 discloses a locking mechanism for a window or a door, the locking mechanism having a round locking rod made of plastic, which is guided in a hollow guide profile and is mounted on a window or door sash via this. The leadership profile requires a lot of space and is therefore only suitable for arrangement on window or door sashes with sufficient space between the sash frame and the fixed frame, as is the case, for example, with sashes with plastic or aluminum profiles.

FR 2 609 089 A1 discloses a device for guiding the rod mechanism of a multi-point lock for windows, in which a tube is attached to a faceplate of the multi-point lock, in which a drive rod is guided.

The invention is based on the object of increasing the burglary security of a locking device using simple structural means, regardless of the design or construction material of the door or window.

The invention solves this problem by a locking device with the features of claim 1.

The locking device is a locking device for a door or a window. The locking device is in particular a multi-point lock, preferably a panic multi-point lock.

The locking device has a faceplate extending along an axial direction, a main lock and a (first) secondary lock. The main castle and that Secondary locks are attached to the faceplate and coupled to one another by means of a (first) drive rod, so that the secondary lock (via the drive rod) can be actuated at least in the opening direction by the main lock, ie by actuating the main lock.

A connecting rod protection device is provided to protect the connecting rod. The drive rod protection device has a protective tube made of steel with a rectangular cross section (closed cross section) which extends along the faceplate and is attached to the faceplate. The drive rod is arranged in the protective tube and the protective tube surrounds the drive rod to the outside.

This results in increased burglary security by protecting against unauthorized access to the drive rod. For example, in the event of a break-in attempt, the drive rod cannot be easily accessed or manipulated, even after damage to the sash or sash profile of the door or window or after damage to the cuff. The protective tube completely encloses the drive rod thanks to its closed cross section. This means that no contour of the drive rod can be used to move it and thus to operate the locking device, even if you get between the faceplate and the protective tube, for example as part of an attempted break-in.

As explained previously, the protective tube surrounds the drive rod on the outside. In other words, the protective tube encloses (starting from its central longitudinal axis) the drive rod towards four sides of the body. The protective tube has a closed cross section and is therefore designed as a tube that is closed all around. The protective tube can, for example, be formed from a flat material into its shape with a rectangular cross-section and welded at the joint (longitudinal joint) (longitudinal seam).

Due to its rectangular cross section, the protective tube can in particular have a rectangular inner cross section and a rectangular outer cross section. The corners at which adjacent body sides of the protective tube adjoin one another can be rounded.

The protective tube is dimensioned in the width direction (extent transversely to its central longitudinal axis or parallel to the cuff width direction) in particular in such a way that the inner width of the protective tube (width of the inner cross section) is only slightly larger than the width of the drive rod. Preferably, the inner width of the protective tube is a maximum of 20% (percent) larger than the width of the drive rod. For example, the inner width of the protective tube can be 13 mm (millimeters) and the width of the drive rod can be 11 mm (millimeters).

A further protective tube, which surrounds a further drive rod to the outside (described further below), can be designed analogously to the (first) drive rod described here.

The main lock and the secondary lock can each have at least one operable locking element, which can be moved between an open position (closing element retracted) and a closed position (closing element extended). The main lock can have a latch and/or a bolt as a locking element. The secondary lock can have a latch bolt as a locking element.

If the drive rod is actuated in the opening direction, for example by a drive device (automatic opener) or manually by a follower or a locking cylinder in the main lock, the locking elements of the main lock and secondary lock also move in the opening direction and can be moved from the closed position to the open position.

As part of a preferred embodiment, a drive device (automatic opener) for driving the drive rod can be arranged and/or attached to the faceplate between the main lock and secondary lock at least in the opening direction. The drive rod protection device has a protective tube body in which the drive device is arranged and through which the drive rod extends, the protective tube body surrounding the drive device and the drive rod to the outside (toward four sides of the body).

The drive device can drive the drive rod when the door is opened electrically and thereby Locking elements of the main lock and secondary lock are moved into the release position. The protective tube body protects the drive device and also the coupling of the drive rod to the drive device from external interference. As a result, the housing of the drive device can be made of plastic, for example. The protective tube body can be made of stainless steel, in particular stainless steel. The protective body has in particular a rectangular tube cross section. The protective body is preferably designed to be completely open at its axial ends (open tube ends of the protective tube body).

Advantageously, the protective tube body is dimensioned such that it protrudes from the axial ends (aligned along the axial direction) of the drive device by a defined amount (beyond the drive device), in particular by a size of at least 20 millimeters, preferably at least 30 millimeters. As a result, the drive device or its housing cannot be reached with burglary tools or is very difficult to reach.

The protective tube expediently has a plurality of separate tube sections, with a first tube section extending from the main lock to the drive device and opening into the protective tube body and a second tube section opening out of the protective tube body and extending from the drive device to the (first) secondary lock. The design of the protective tube with several Axial sections facilitate transport and assembly. The length of the pipe sections can also be easily adjusted. In addition, a design with several pipe sections promotes a structurally simple and stable coupling of the drive device and its protective pipe body with the protective pipe.

In the context of a preferred embodiment, a further (second) secondary lock is provided, which is arranged and/or attached to the faceplate and is coupled to the main lock by means of a further drive rod, so that the further secondary lock can be locked at least through the main lock (i.e. by actuating the main lock). Opening direction can be operated. The drive rod protection device has a further protective tube made of steel with a rectangular, preferably square, cross section, which extends along the cuff and is attached to the cuff. The drive rod is arranged in the further protective tube and the further protective tube surrounds the drive rod to the outside.

This also protects the additional drive rod, which extends from the main lock to the additional additional lock, from unauthorized access. This means that the additional drive rod cannot be easily accessed or manipulated, for example in the event of a break-in attempt, even after damage to the sash or sash profile of the door or window or after damage to the cuff. The additional protective tube completely encloses the additional drive rod due to its closed cross section.

With regard to further aspects, the further protective tube can be designed as described above in connection with the (first) protective tube.

The main lock is coupled to the (first) secondary lock by means of the (first) drive rod and to the further secondary lock by means of the further drive rod. If the locking device is actuated in the opening direction, for example manually by the follower follower or the locking cylinder in the main lock or automatically by the drive device (automatic opener), the drive rod and the other drive rod are driven in the opening direction. The locking elements of the main lock, first secondary lock and second secondary lock can thus be moved from the closed position to the open position.

A protective plate can advantageously be arranged on a side wall of the main lock. The protective plate extends towards the faceplate, with the protective plate being connected to the (first) protective tube at one axial end and being connected to the further protective tube at the other axial end. The protective plate can protect the transition or gap between the main lock case, the protective tube and the additional protective tube from unauthorized access. In this way, the area where the connecting rods are coupled to the mechanics of the main lock is particularly protected, i.e. where there are corresponding contours that could be used to manipulate and move the connecting rods with burglary tools. The Protective plate is arranged in particular on the unsecured side of the main lock (i.e. on the side of the main lock that faces the (unsecured) side (often the outside) in the mounted state of the locking device in a wing of a door or window).

The protective tube and/or the further protective tube can expediently be made of stainless steel, in particular stainless steel. This means that the protective tubes are not only corrosion-resistant, but also generally very durable.

As part of a preferred embodiment, the protective tube and/or the further protective tube can each be screwed or riveted to the faceplate, in particular by means of blind rivets. This achieves a stable assignment of the protective tube or tubes on the faceplate. A screw connection (fastening using screws) can make maintenance work on the locking device easier. Riveting (fastening using rivets or blind rivets) ensures a particularly stable connection that cannot be removed without being destroyed.

Advantageously, the drive rod and/or the further drive rod can each have a reduced or comparatively low material thickness (drive rod thickness). The drive rod can have a material thickness of 2.0 mm or less (material thickness ≤ 2.0 mm). As part of tests, a drive rod with a... Material thickness reduced to 1.5 mm (millimeters) has proven to be particularly advantageous. The reduced material thickness of the drive rod and/or the other drive rod means that they can bend or even break in the event of a break-in attempt. This means that the drive rod or the other drive rod are no longer available for further manipulations.

The drive rod and/or the further drive rod can expediently be made of high-strength spring steel. As a result, the drive rod and/or the additional drive rod have high-strength properties and high elasticity.

The task mentioned at the beginning is also solved by a door arrangement with the features of the independent claim. With regard to the advantages, please refer to the relevant statements on the locking device.

The door arrangement has a (stationary) frame and a wing of a window or door which is pivotably mounted on the frame by means of a bearing. The wing has a locking device with one or more of the aspects described above on its narrow side (opposite side of the hinge) facing away from the bearing (hinge side). The locking device can be integrated into the wing in a corresponding recess on the narrow side (opposite side of the hinge).

Fig.1

eine Ausführungsform einer Verriegelungsvorrichtung in einer Seitenansicht (Fig.1a), eine Ansicht mit Blick auf den Stulp (Fig.1b) und eine Schnittansicht gemäß der in Figur 1b eingezeichneten Schnittachse A-A (Fig.1c);

Fig.2

die Verriegelungsvorrichtung aus Figur 1 in einer perspektivischen Explosionsdarstellung;

Fig.3

ein erster Rohrabschnitt des Schutzrohrs der Verriegelungsvorrichtung aus Fig.1 in einer Draufsicht (Fig.3a), einem Längsschnitt gemäß Schnittachse B-B in Figur 3c (Fig.3b) und einem Querschnitt (Fig.3c);

Fig.4

ein zweiter Rohrabschnitt des Schutzrohrs der Verriegelungsvorrichtung aus Fig.1 in einer Draufsicht (Fig.4a), einem Längsschnitt gemäß Schnittachse C-C in Figur 4c (Fig.4b) und einem Querschnitt (Fig.4c);

Fig.5

ein Schutzrohrkörper der Verriegelungsvorrichtung aus Fig.1 in einer Draufsicht (Fig.5a), einem Längsschnitt gemäß Schnittachse D-D in Figur 5a (Fig.5b) und einem Querschnitt (Fig.5c); und

Fig.6

ein weiteres Schutzrohr der Verriegelungsvorrichtung aus Fig.1 in einer Draufsicht (Fig.6a), einem Längsschnitt gemäß Schnittachse E-E in Figur 6c (Fig.6b) und einem Querschnitt (Fig.6c).

The invention is explained in more detail below with reference to the figures, with identical or functionally identical elements being provided with identical reference numbers, but if necessary only once. Show it:

Fig.1

an embodiment of a locking device in a side view ( Fig.1a ), a view looking towards the forend ( Fig.1b ) and a sectional view according to in Figure 1b marked cutting axis AA ( Fig.1c );

Fig.2

the locking device Figure 1 in a perspective exploded view;

Fig.3

a first tube section of the protective tube of the locking device Fig.1 in a top view ( Fig.3a ), a longitudinal section according to the cutting axis BB in Figure 3c (Fig.3b ) and a cross section ( Fig.3c );

Fig.4

a second tube section of the protective tube of the locking device Fig.1 in a top view ( Fig.4a ), a longitudinal section along the cutting axis CC in Figure 4c (Fig.4b ) and a cross section ( Fig.4c );

Fig.5

a protective tube body of the locking device Fig.1 in a top view ( Fig.5a ), one Longitudinal section according to cutting axis DD in Figure 5a (Fig.5b ) and a cross section ( Fig.5c ); and

Fig.6

another protective tube of the locking device Fig.1 in a top view ( Fig.6a ), a longitudinal section according to the cutting axis EE in Figure 6c (Fig.6b ) and a cross section ( Fig.6c ).

Figure 1 shows a locking device for a door or a window, the locking device as a whole being provided with the reference number 10. The locking device 10 is designed as a multi-point lock in the example.

The locking device 10 may be used on a door assembly (not shown), where the locking device may be installed in a sash of a window or door, as explained above.

The locking device 10 has a cuff 14 extending along an axial direction 12, a main lock 16, a first secondary lock 18, a second secondary lock 20 and a drive device 22 (in Fig.1a covered by a protective tube body 34) for automatic or motorized opening of the locking device 10.

In the example, the main lock 16 has a follower follower 11 and a lock cylinder 13. This points further Main lock 16 has a locking element 15 in the form of a latch. The first secondary lock 18 and the second secondary lock 20 each have a locking element 17, 19, which in the example is designed as a latch bolt.

The main lock 16 and the first secondary lock 18 are attached to the faceplate 14 and by means of a first drive rod 26 (cf. Fig.1c and Fig.2 ) coupled to each other, so that the first secondary lock 18 can be actuated at least in the opening direction via the first drive rod 26 by actuating the main lock 16.

Furthermore, a drive rod protection device 30 is provided to protect the first drive rod 26 (cf. Fig.1c and 2 ). The drive rod protection device 30 has a protective tube 32 made of steel with a rectangular cross section, which extends along the cuff 14 and is fastened to the cuff 14, the first drive rod 26 being arranged in the protective tube 32 and the protective tube 32 surrounding the first drive rod 26 to the outside (cf . Fig.1c and 2 ).

In the example, the protective tube 32 surrounds the first drive rod 26 outwards on four sides of the body. The protective tube 32 is thus designed as a tube with a completely closed cross section. In the example, the cross section of the protective tube 32 is square.

As previously indicated, there is a drive device 22 (automatic opener 22) on the faceplate 14 between the main lock 16 and secondary lock 20 for driving the first drive rod 26 attached at least in the opening direction (cf. Fig.1a and Fig.2 ). The drive rod protection device 30 has a protective tube body 34, in which the drive device 22 is arranged and through which the first drive rod 26 extends (cf. Fig.1c and Fig.2 ). The protective tube body 34 surrounds the drive device 22 and the first drive rod 26 to the outside. In the example, the protective tube body 34 is made of stainless steel, in particular stainless steel, and has a rectangular tube cross section.

The protective tube body 34 is dimensioned in such a way that it protrudes axially beyond the drive device 22 by a defined amount at the axial ends 35, 36 (aligned along the axial direction 12) of the drive device 22 (cf. Fig.2 ). In the example, this dimension (overhang) is 30 millimeters each at both axial ends 35, 36.

The protective tube 32 has several separate tube sections 38, 39. A first pipe section 38 extends from the main lock 16 to the drive device 22 and opens into the protective pipe body 34 (cf. Fig.1a and Fig.2 ). A second pipe section 39 opens out of the protective pipe body 34 and extends from the drive device 22 to the first secondary lock 18 (cf. Fig.1a and Fig.2 ).

As already indicated, a further or second secondary lock 20 is provided (cf. Fig.1a and Fig.2 ). The Another secondary lock 20 is attached to the faceplate 14 and is coupled to the main lock 16 by means of a further drive rod 40. The further secondary lock 20 can be actuated at least in the opening direction by actuating the main lock 16. The drive rod protection device 30 has a further protective tube 42 made of steel with a rectangular cross section, which extends along the cuff 14 and is fastened to the cuff 14. The further drive rod 40 is arranged in the further protective tube 42 and the further protective tube 42 surrounds the further drive rod 40 to the outside.

In the example, the further protective tube 42 surrounds the further drive rod 40 outwards on four sides of the body. The further protective tube 42 is thus designed as a tube with a completely closed cross section. In the example, the cross section of the further protective tube 42 is square.

A protective plate 44 is arranged on a side wall of the main lock 16 (cf. Fig.2 ). The protective plate 44 extends towards the cuff 14. At an axial end 46, the protective plate 44 is connected to the first protective tube 32. At the other axial end 48, the protective plate 44 is connected to the further protective tube 42. In the example, the protective plate 44 is arranged on the unsecured side of the main lock 16.

In the example, the protective tube 32 and the further protective tube 42 are each made of stainless steel, in particular stainless steel.

In the example, the protective tube 32 and the further protective tube 42 are each riveted to the faceplate 14, using blind rivets 50. The drive rod 26 and the further drive rod 40 are each made of high-strength spring steel.

Figure 3a shows the first tube section 38 of the protective tube 32 in a top view. Figure 3c shows a cross section of the first pipe section 38. Figure 3b shows a longitudinal section along the in Figure 3c marked cutting axis BB.

Several passages 52 are formed in the first pipe section 38 (cf. Fig.3a ), namely on the side 53 facing the faceplate 14 in the assembled state (appendix page 53; cf. Fig.2 ). The blind rivets 50 can be inserted into the passages 52, via which the first pipe section 38 can be fastened to the faceplate 14 (cf. Fig.2 ).

A further passage 56 is formed on a body side 54 adjacent to the contact side 53 and optionally also on the opposite side of the body side 54 (cf. Fig.3b ), into which a fastening screw 58 of the protective plate 44 can be inserted (cf. Fig.2 ). The further passage 56 is located at the end of the first pipe section 38 facing the main lock 16 (cf. Fig.2 ). The further passage 56 can be provided with an internal thread.

Figure 4a shows the second tube section 39 of the protective tube 32 in a top view. Figure 4c shows a cross section of the second pipe section 39. Figure 4b shows a longitudinal section along the in Figure 4c marked cutting axis CC.

Several passages 60 are formed in the second pipe section 39 (cf. Fig.4a and 4b ), namely on the side 62 facing the faceplate 14 in the assembled state (appendix page 62; cf. Fig.2 ). The blind rivets 50 can be inserted into the passages 60, via which the second pipe section 39 can be fastened to the faceplate 14 (cf. Fig.2 ).

Optionally, further passages 66 can be formed on a body side 64 opposite the contact side 62, which can be aligned with the passages 60. In addition, a preferably rectangular or square opening 68 can be formed on the contact side 62.

Figure 5a shows the protective tube body 34 in a top view. Figure 5b shows a longitudinal section along the in Figure 5a marked cutting axis DD. Figure 5c shows a cross section of the protective tube body 34.

Several passages 70 are formed in the protective tube body 34 (cf. Fig.5a and 5b ), namely on the side 72 facing the faceplate 14 in the assembled state (appendix page 72; cf. Fig.2 ). Through this you can Fastening screws 74 are inserted through, by means of which the drive device 22 can be fastened to the faceplate 14 (cf. Fig.2 ). In addition, in the example, two preferably rectangular or square openings 76 are formed on the contact side 72.

Figure 6a shows the further protective tube 42 in a top view. Figure 6c shows a cross section of the further protective tube 42. Figure 6b shows a longitudinal section along the in Figure 6c marked cutting axis EE.

Several passages 80 are formed in the further protective tube 42 (cf. Fig.6a ), namely on the side 82 facing the faceplate 14 in the assembled state (appendix page 82; cf. Fig.2 ). The blind rivets 50 can be inserted into the passages 80, via which the further protective tube 42 can be attached to the faceplate 14 (cf. Fig.2 ).

A further passage 86 is formed on a body side 84 adjacent to the contact side 82 and optionally also on the opposite side of the body side 84 (cf. Fig.6b ), into which a fastening screw 58 of the protective plate 44 can be inserted (cf. Fig.2 ). The further passage 86 is located at the end of the further protective tube 42 facing the main lock 16 (cf. Fig.2 ). The further passage 86 can be provided with an internal thread.

Claims (11)

1. Locking device (10), in particular a multi-point locking means (10), for a door or a window, having a front plate (14) extending in an axial direction (12), a main lock (16) and a secondary lock (18), the main lock (16) and the secondary lock (18) being fastened to the front plate (14) and being coupled to one another by means of a connecting rod (26) so that the secondary lock (18) can be actuated by the main lock (16) at least in the opening direction, characterized in that a connecting rod protection apparatus (30) is provided for protecting the connecting rod (26), the connecting rod protection apparatus (30) having a protective tube (32) which extends along the front plate (14), is fastened to the front plate (14), is made of steel and has a rectangular cross section, the connecting rod (26) being arranged in the protective tube (32) and the protective tube (32) surrounding the connecting rod (26) to the outside.
2. Locking device (10) according to claim 1, characterized in that a drive apparatus (22) for driving the connecting rod (26) is fastened to the front plate (14) between the main lock (16) and the secondary lock (18) at least in the opening direction, the connecting rod protection apparatus (30) having a protective tube body (34) in which the drive apparatus (22) is arranged and through which the connecting rod (26) extends, the protective tube body (34) surrounding the drive apparatus (22) and the connecting rod (26) to the outside.
3. Locking device (10) according to claim 2, characterized in that the protective tube body (30) is dimensioned such that it projects at the axial ends (35, 36) of the drive apparatus (22) by a defined amount in each case, in particular by an amount of at least 20 millimeters, preferably at least 30 millimeters.
4. Locking device (10) according to either claim 2 or claim 3, characterized in that the protective tube (32) has a plurality of separate tube portions (38, 39), a first tube portion (38) extending from the main lock (16) to the drive apparatus (22) and opening into the protective tube body (34), and a second tube portion (39) opening out of the protective tube body (34) and extending from the drive apparatus (22) to the secondary lock (18).
5. Locking device (10) according to any of the preceding claims, characterized in that a further secondary lock (20) is provided, which is fastened to the front plate (14) and is coupled to the main lock (16) by means of a further connecting rod (40) so that the further secondary lock (20) can be actuated by the main lock (16) at least in the opening direction, the connecting rod protection apparatus (30) having a further protective tube (32) which extends along the front plate (14), is fastened to the front plate (14), is made of steel and has a rectangular cross section, the further connecting rod (40) being arranged in the further protective tube (42) and the further protective tube (42) surrounding the further connecting rod (40) to the outside.
6. Locking device (10) according to claim 5, characterized in that a protective plate (44) is arranged on a side wall of the main lock (16), the protective plate (44) extending toward the front plate (14), the protective plate (44) being connected to the protective tube (32) at an axial end (46) and being connected to the further protective tube (42) at the other axial end (48).
7. Locking device (10) according to any of the preceding claims, characterized in that the protective tube (32) and/or the further protective tube (42) are each made of stainless steel, in particular of high-grade stainless steel.
8. Locking device (10) according to any of the preceding claims, characterized in that the protective tube (32) and/or the further protective tube (42) are each screwed or riveted to the front plate (14), in particular by means of blind rivets (50).
9. Locking device (10) according to any of the preceding claims, characterized in that the connecting rod (26) and/or the further connecting rod (40) each have a material thickness of 2.0 mm or less.
10. Locking device (10) according to any of the preceding claims, characterized in that the connecting rod (26) and/or the connecting rod (40) are each designed from high-strength spring steel.
11. Door assembly, comprising a frame and a sash of a window or a door, which is pivotally mounted on the frame by means of a bearing, wherein the sash has a locking device (10) according to any of the preceding claims on its narrow side facing away from the bearing.

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