bolt retrieval device

Description

[0001] The invention relates to a bolt receiving device for a locking device having at least one swivel hook bolt, with a locking bar having a passage opening for a swivel hook bolt.

[0002] Such a locking strip, which is also referred to as a striking plate or striking part, is preferably fastened to a door frame of a door or to a window or window frame. The locking device is preferably a door lock, e.g. a multiple locking system, which can be designed as a driving rod lock, for example, whereby such a driving rod lock has a central lock (center lock) and one or more additional locks or additional locking systems. The center lock has, for example, a central bolt and optionally a lock latch, while the additional locks have one or more additional bolts, which within the scope of the invention are preferably designed as swivel hook bolts. In this respect, the bolt receiving device according to the invention is preferably assigned to an additional lock of a multiple locking system. During the locking process, the swivel hook bolt is, for example,pivoted about an axis and during the pivoting movement the swivel hook bolt engages in the passage opening and engages behind the striking strip. The locking device, which is designed as an additional lock, for example, usually has a lock housing or a lock case in which the swivel hook bolt is pivotally mounted. For this purpose, the swivel hook bolt can have a base section which is pivotally attached to the lock housing by means of a pivot axis and an (L-shaped) hook section which is connected to the base section and projects out of the lock housing in the locking position. The end leg of this L-shaped hook section engages behind the striking strip in the locking position. In order to maximize burglary protection, it is expedient for this end leg of the swivel hook bolt to engage behind the striking strip as far as possible and therefore with maximum overlap.

[0003] The locking bar can be designed as a flat sheet or as an angled sheet with an L-shaped or U-shaped cross-section. In the area of ​​the access opening, a (cup-shaped) bolt receiving part and thus a bolt receiving cup can be arranged on the rear, into which the hook bolt engages. In a multi-point locking system, the additional lock can be assigned its own, separate locking bar. However, a continuous locking bar can also be used, with access openings at different heights for the various locks.

[0004] The positioning of the bolt receiving device or the locking strip is particularly important in practice, because with different profile systems and rubber seals, it is necessary to be able to mount a locking part in different positions so that the door's locking elements, e.g., the swivel hook bolt(s), can engage seamlessly with the locking part. If necessary, the adjustment is also carried out so that the bolt(s) always gently pull the door, e.g., the front door, into the door seal. In practice, the problem arises that doors, e.g., wooden doors or even plastic doors, can warp due to varying weather or temperature conditions.

[0005] Against this background, DE 10 2013 101 033 A1 proposes a bolt receiving device with a locking bar and a bolt receiving part fastened thereto, which has an outer part that can be fastened to the locking bar and an inner part that is movably arranged in the outer part and into which a bolt of the door lock engages. The inner part is held in a basic position by means of a spring device, from which position the inner part can be deflected along the closing direction of the door against the spring force of the spring device, and the basic position of the inner part can be changed by means of an adjusting device. The outer part can be pot-shaped, and the inner part arranged therein can also be pot-shaped. The adjusting device can preferably have an eccentric part. With this configuration, in particular, the adjustment along the closing direction of the door can be optimized.

[0006] Regardless of this, in practice there is the problem of adjusting the door along the longitudinal direction of the striker bar, which is usually oriented perpendicular to the door's closing direction and thus vertically in the room. Problems can arise in particular when the door leaf lowers relative to the door frame and thus also relative to the striker bar attached to the door frame, as this reduces the engagement of the swivel hook bolt behind the striker bar or the overlap between the swivel hook bolt and the striker bar. With conventional striker bars, such a reduced overlap leads to reduced burglary protection or tamper resistance. The invention aims to remedy this.

[0007] Document JPS542594U discloses a bolt receiving device for a locking device having at least one swivel hook bolt according to the preamble of claim 1.

[0008] The invention is based on the object of creating a bolt receiving device for a locking device with a swivel hook bolt of the type described above, which is characterized by improved security against manipulation and consequently against burglary.

[0009] To achieve this object, the invention teaches, in a generic bolt receiving device of the type described above, that a locking plate is movably fastened to the locking bar, which is displaceable (by a predetermined amount) along the longitudinal direction of the locking bar, wherein the locking plate is movable by a force into a basic position partially covering (and consequently reducing) the passage opening and, as the swivel hook bolt pivots in, is movable, e.g., liftable, from the basic position against the force by the swivel hook bolt. During this movement, e.g., lifting, the partial covering of the passage opening realized by the locking plate is at least partially removed again, and the passage opening is consequently exposed.

[0010] The invention is based on the knowledge that the swivel hook bolt (e.g. of an additional locking device) in known locking devices (e.g. espagnolette locks) engages into the passage opening of the locking strip from below (or from above), for example by pivoting from below (or from above), and consequently engages behind the locking strip above the passage opening with its end, with a certain overlap. If the door leaf sinks relative to the door frame and thus also relative to the locking strip, this overlap is reduced. According to the invention, this is counteracted by the locking plate, which is attached to the locking strip and, when the door is open in a (lower) basic position, sinks into the area of ​​the passage opening, e.g. due to gravity, and thus reduces the size of the passage opening in the upper area.In the event that the door leaf drops, the locking plate provides an enlarged surface area, allowing the hook bolt to achieve sufficient overlap behind the striker bar and behind the locking plate, which applies not only to the striker bar itself but also to the locking plate. It is important that this locking plate can be easily lifted against gravity as the hook bolt pivots in, so that the locking plate does not negatively impact the movement of the hook bolt, even when the door leaf is at the originally intended height, where such a locking plate could fundamentally be dispensed with.The locking plate's mobility along the longitudinal direction of the strike plate means that the swivel hook bolt can be easily pivoted into the opening in the conventional manner, and that the locking plate always drops down in the locking mechanism until it either reaches its end stop or rests against the swivel hook bolt. This always ensures an optimal level of tamper resistance without compromising the operation of the lock.

[0011] The invention can first of all be implemented in known locking devices in which the swivel hook bolt is oriented such that it pivots from below into the area of ​​the locking bar, i.e., the hook end of the swivel hook bolt is oriented upwards. In this case, the invention proposes that the locking plate can be moved into a lower basic position by a force, e.g., gravity, and as the swivel hook bolt pivots in, the locking plate can be raised against this force, e.g., gravity.

[0012] However, the invention also encompasses embodiments in which the swivel hook bolt is pivoted in a pivoting movement from above into the area of ​​the locking strip and consequently enters the passage opening from above. In this embodiment, the hook end of the swivel hook bolt is oriented downwards in the locked state. In such an embodiment, it is expedient if the locking plate is moved into an upper basic position by a force, e.g. a spring force, wherein the locking plate can be lowered from this upper basic position against the force, e.g. spring force, as the swivel hook bolt is pivoted in. In such an embodiment, therefore, at least one spring or spring element is preferably provided which urges the locking plate into its upper basic position.A spring or a spring element can also be useful in an embodiment in which the locking plate is already moved into a lower basic position due to gravity, because in this case the lowering can be supported by the force of an additional force.

[0013] Furthermore, according to the invention, the locking plate is attached to the back of the locking bar, and the swivel hook bolt engages behind the back of the locking plate in the locked position. The back of the locking bar refers to the side of the locking bar facing away from the lock when the door is closed, and consequently, the side of the locking bar facing the door frame. However, the invention equally applies to windows or the like.

[0014] The locking plate is preferably plate-shaped, specifically such that, in a lower basic position, it covers an upper area of ​​the passage opening, and, in an upper basic position, it covers a lower area of ​​the passage opening. This is achieved, for example, by the locking plate itself also having an opening which, in the basic position, is only partially aligned with the passage opening of the locking bar and which is bordered by an upper (or lower) actuating edge against which the swivel hook bolt can work during the pivoting in process, raising (or lowering) the locking plate.

[0015] In this case, the swivel hook bolt comprises, in a generally known manner, a base section pivotally mounted on a lock housing with a pivot axis, and an (L-shaped) hook section connected to the base section and projecting from the lock housing in the locking position. Preferably, the actuating edge of the locking plate, which defines the opening on the top (or bottom), can be raised or lowered by an inner actuating surface of the hook section of the swivel hook bolt.

[0016] There are various ways to construct the invention or the locking plate. In an embodiment not according to the invention, a front-side retaining plate is provided in addition to the rear locking plate, wherein the rear locking plate is slidably attached to the locking strip together with the front-side retaining plate. The locking plate and the retaining plate can be connected to one another at a distance from one another with the locking strip interposed (parallel to one another), preferably with the interposition of one or more spacer elements or guide elements guided in the passage opening.

[0017] According to the invention, a bolt receiving cup is also attached to the rear of the striker bar. The locking plate is slidably guided between the striker bar and the bolt receiving cup. This eliminates the need for a front-facing retaining plate. The locking plate essential to the invention can be very easily guided between the bolt receiving cup, which is generally known from practice, and the rear of the striker bar in such a way that the lowering (or raising) of the locking plate into the basic position is limited by a stop. In a particularly preferred development, the bolt receiving cup is attached to the striker bar so that it can be adjusted in the transverse direction or in the closing direction of the door and thus perpendicular to the longitudinal direction of the striker bar, without the position of the locking plate and its mobility being affected during this adjustment.For adjustment, the bolt receiving cup can be attached to the locking bar with one or more adjusting elements. These adjusting elements can be, for example, eccentric adjusting elements. In this preferred embodiment of the invention, misalignments of the door in the vertical direction and consequently along the longitudinal direction of the locking bar are compensated for by the locking plate according to the invention. At the same time, misalignments in the perpendicular closing direction of the door can be compensated for by the adjustability of the bolt receiving cup.

[0018] The locking strip can generally be designed as a simple, flat locking plate or as a flat sheet. However, it is preferably designed as an angled sheet with an L-shaped or, more preferably, a U-shaped cross-section. In this case, it comprises a base plate forming the U-shaped base and two side legs connected to the base plate and forming the U-shaped legs. In such an embodiment, the locking plate is preferably guided at the rear of the base plate and, if appropriate, laterally between the side legs or in some other way.

[0019] The passage opening of the locking strip preferably has a height (along the longitudinal direction of the locking strip) of 10 mm to 50 mm, e.g., 20 mm to 40 mm. It is expedient if the locking plate covers the (upper) area of ​​the passage opening in the (lowered) basic position by a predetermined amount (along the longitudinal direction of the locking strip). This amount can be, for example, 5 mm to 15 mm. It is always expedient if the locking plate can be raised (or lowered) as the swivel hook bolt pivots in, so that the passage opening is completely or at least essentially completely exposed.

[0020] The invention also relates to a locking device with a (door) lock (attached or attachable to a door leaf or window leaf), e.g. with a drive rod lock which has at least one swivel hook bolt, and with a bolt receiving device of the type described (arranged or attachable to a door frame or window frame).

[0021] The bolt receiving device according to the invention is therefore also protected in combination with a lock or door lock, e.g., with a drive rod lock, and thus as a component of a locking device. This is because the bolt receiving device according to the invention is particularly important in conjunction with the swivel hook bolt of a lock. The swivel hook bolt is preferably a component of an additional locking mechanism of a drive rod lock.

[0022] The locking bar is preferably made of metal, e.g., as a U-shaped sheet metal part. The locking plate is also preferably made of metal, e.g., as a flat sheet with a punched opening. The bolt receiving cup can also be made of metal, e.g., as a cast part. Alternatively, the bolt receiving cup can also be made of a molded plastic part.

[0023] The invention will be explained in more detail below with reference to drawings which merely represent exemplary embodiments. Fig. 1 a locking device with a multiple locking mechanism in a simplified side view, Fig. 2 an enlarged section of the object according to Fig. 1 in a non-inventive embodiment, Fig. 3 the object according to Fig. 2 in a perspective view, Fig. 4a, a section of the object according to Fig. 1in the embodiment according to the invention (in two different functional positions), Fig. 5a,b the locking bar according to Fig. 4a , b in a plan view and Fig. 6 a rear view of the locking bar according to Fig. 5a , Fig. 7a,bthe locking bar according Fig. 4a in a perspective view and in an exploded view.

[0024] In Fig. 1A locking system with multiple locking for a door is shown. In the exemplary embodiment, the multiple locking system is designed as a drive rod lock 1 with a central lock 2 and additional locks 3, each of the locks 2, 3 having at least one bolt. In the additional locks, the bolts are designed as swivel hook bolts 4. The drive rod lock 1 is fastened to the door leaf 5. The invention relates to the locking bar 7, which is assigned to the additional lock 3 with swivel hook bolt 4. This locking bar 7 has a passage opening 8 for the swivel hook bolt 4. During the locking of the drive rod lock 1 and consequently also of the additional locking system 3, the swivel hook bolt 4 is pivoted about its axis 9 and, during the pivoting, passes through the passage opening 8 and engages behind the locking bar 7.In this embodiment, the pivoting of the hook bolt 4 is effected by a drive rod (not shown), which may, for example, be operatively connected to the central lock 2 and / or be actuated by a motor drive. Thus, the hook bolt 4 can be moved into the locking position manually, for example, by operating the key or handle of the central lock 2, or can be moved automatically (mechanically) into the locking position when the door is closed, or can be triggered automatically or manually via a motor drive. Details are not shown.

[0025] The swivel hook bolt 4 has a base section 4a pivotally attached to a lock housing 10 with the pivot axis 9, and an L-shaped hook section 4b connected to the base section 4a and projecting from the lock housing 10 in the locking position. In a normal position, the hook section 4b engages behind the locking bar 7 or its rear side by a predetermined amount, which represents the overlap of the hook section 4b with the locking bar 7.

[0026] Problems arise in the prior art when the door leaf 5 sinks downwards relative to the door frame 6 and thus the dimension M, i.e. the overlap, is reduced. This is counteracted according to the invention in that a locking plate 11 is movably attached to the locking strip 7, wherein the locking plate 11 is displaceable along the longitudinal direction X of the locking strip 7. In the exemplary embodiment, this locking plate 11 sinks downwards due to gravity until, due to a stop (not shown in detail), it reaches a lower basic position in which the passage opening 8 of the locking strip 7 is partially covered in the upper area. This increases the surface area that the pivoting hook bolt 4 or its L-shaped hook section 4b can engage behind in the locking position, so that security against tampering is increased.It is also important that this locking plate 11 can be lifted from its basic position against gravity by the swivel hook bolt 4 during the pivoting in of the swivel hook bolt 4—if necessary due to positioning. Consequently, the pivoting in of the swivel hook bolt 4 is not impaired by this movable locking plate 11. In any case, this allows the swivel hook bolt 4 to engage behind the lowered locking plate 11 at the locking point.

[0027] The locking plate 11 is attached to the back of the locking bar 7, and the swivel hook bolt 4 engages behind the back of the locking plate 11 in the locked position. Preferably, the locking plate 11 has an opening 12 which, in the basic position, is only partially aligned with the through-opening 8 of the locking bar 7 and which is delimited by an upper actuating edge 13 against which the swivel hook bolt 4 can work during the pivoting in process, lifting the locking plate 11. This upper actuating edge 13 of the locking plate 11 can be lifted by an inner actuating surface 4c of the hook section 4b of the swivel hook bolt 4.

[0028] The Figure 2 and 3show a device not according to the invention, in which the rear locking plate 11 is slidably attached to the locking bar 7 together with a front holding plate 14. The locking plate 11 and the holding plate 14 are connected to one another at a distance from one another, parallel to one another, with the locking bar 7 interposed, preferably with the interposition of one or more spacer elements or guide plates 15, which are guided in the passage opening of the locking bar to guide the locking plate 11. The spacer elements or guide plates 15 can be somewhat thicker than the locking bar or its base plate 7a, so that the locking plate 11 and the holding plate 14 are arranged with sufficient spacing and consequently with play, so that the locking plate can easily sink into the basic position due to gravity and can easily be raised against gravity with the pivoting hook latch 4.The locking plate 11 and the retaining plate 14 can be connected to one another by means of one or more screws 16 or similar connecting means, with the spacer elements 15 interposed. Furthermore, . Figure 3It is indicated by way of example that the opening 12 in the locking plate 11 and / or the opening in the holding plate 14 and / or the opening 8 in the locking strip 7 does not have to be rectangular and in particular does not have to have straight side edges. Rather, an embodiment not according to the invention is shown in which one or both side edges are curved in such a way that, for example, the opening 12 has a greater width in the middle area (in relation to the height) than in the upper area and / or lower area. This configuration can relate to the opening in the locking plate and / or the opening 8 in the locking strip and / or the holding plate 14, which also has an opening. Overall, the pivoting in of the pivot bolt can be optimized by one or more curved side edges, and at the same time there is the possibility that the pivot hook bolt can gently press the door against the door frame or the like as it pivots in.into the lock by the swivel hook bolt sliding along the curved side edge of the opening or breakthrough.

[0029] In the Figure 4a , b , 5a , b and 6 as well as 7a,7b A device according to the invention is shown. The Figure 4a and 5a show a first functional position with the lock open and consequently the swivel hook bolt not swung out. Figure 4b and 5b In contrast, show the locking position with the swivel hook bolt swung out, ie the swivel hook bolt passes through the opening 8 of the locking bar 7. Figure 7a shows the locking bar in the functional position Figure 4a , 5a in a perspective view. Figure 7b shows the locking bar Figure 7ain an exploded view. A bolt receiving cup 17 is attached to the rear of the locking bar 7 in a generally known manner. The swivel hook bolt 4 or its end hook section 4b engages in this bolt receiving cup 17 in the locking position. Such a bolt receiving cup 17 is intended, among other things, to prevent tampering in the locking position. The locking plate 11 according to the invention is slidably guided along the longitudinal direction X between the locking bar 7 (or the rear of the locking bar) and the bolt receiving cup 17. The locking bar is preferably U-shaped in cross-section with a base plate 7a forming the U-base and two side legs 7b connected to the base plate and forming the U-legs. The locking plate can be dimensioned such that it is guided on the rear of the base plate 7a and between the side legs 7b.However, the locking plate 11 is guided on the bolt receiving pot by suitable means along the longitudinal direction X. Overall, a very simple and at the same time flawless guidance of the locking plate along the longitudinal direction X is achieved.

[0030] The bolt receiving cup 17 is preferably attached to the locking bar 7 so as to be adjustable in a transverse direction Y, in such a way that the position of the locking plate itself is not affected. For this purpose, the bolt receiving cup 17 is attached to the locking bar by means of several adjusting elements 18, wherein these adjusting elements 18 are designed as eccentric adjusting elements. As the eccentric adjusting elements 18 rotate, the end-side eccentric bolts 18a act on the bolt receiving cup 17 such that it is displaced in the transverse direction Y. In this way, a perfect adjustment of the bolt receiving cup 17 in the transverse direction Y is achieved.

[0031] The locking plate 7 is attached to the locking bar in such a way that its lowering into the home position is limited, e.g., by a suitable stop. This ensures that the locking plate protrudes into the opening by a predetermined amount M, thus reducing the longitudinal expansion of the opening by a amount M of, e.g., 5 mm to 10 mm.

[0032] Furthermore, the figures show, by way of example, an embodiment in which the swivel hook bolt 4 passes through the through-opening 8 of the locking bar 7 from below. In this case, the locking plate 11 sinks into the lower basic position by gravity. This can optionally be assisted by the force of an additional actuating spring. In any case, the swivel hook bolt 4 lifts the locking plate 11 during the pivoting in process, as the swivel hook bolt acts on the upper actuating edge 13 of the opening 12.

[0033] However, the invention can equally be implemented in locking systems in which the swivel hook bolt 4 is pivoted in the opposite orientation into the area of ​​the locking strip, i.e. the swivel hook bolt is pivoted from above through the passage opening. In this case, the locking plate 11 is subjected to a suitable force in the opposite direction and thus against the force of gravity, e.g. with an actuating spring which raises the locking plate into its basic position. During locking, the swivel hook pivoting in from above can lower the locking plate against the force of the actuating spring, e.g. by working against a lower actuating edge of the passage opening. Such an embodiment is not shown. However, all options shown in the figures also relate accordingly to such an embodiment.

[0034] Furthermore, a swivel hook latch that can be pivoted about a (fixed) axis is shown merely as an example. However, the term "swivel hook latch" equally encompasses embodiments in which the swivel hook latch is not pivoted about a fixed axis, but rather moves, for example, along an arcuate path in the manner of a pivoting movement. Details are not shown in the figures.

Claims

1. A bolt receiving device for a locking device (1) that has at least one pivoting hook bolt (4), having a strike plate (7) that has a passage opening (8) for a pivoting hook bolt (4), wherein a blocking plate (11) is fastened movably to the strike plate (7) and is displaceable in the longitudinal direction (X) of the strike plate(7), wherein the blocking plate (11) is movable into a main position that partially covers the passage opening (8) and is movable out of the main position by the pivoting hook bolt (4) as the pivoting hook bolt pivots in, wherein the blocking plate (11) is fastened at the rear to the strike plate (7), and the pivoting hook bolt (4) engages behind the rear face of the blocking plate (11) when in the locked position, characterised in that a bolt receiving pot (17) is fastened to the rear of the strike plate (7), wherein the blocking plate (11) is guided displaceably between the strike plate (7) and the bolt receiving pot (17).

2. The device according to Claim 1, characterised in that the blocking plate (11) has a through-hole (12), which aligns with the passage opening (8) of the strike plate (7) only in some regions when in the main position and / or which is delimited by an actuating edge (13) against which the pivoting hook bolt (4) can work when pivoting in.

3. The device according to Claim 1 or 2, wherein the pivoting hook bolt (4) has a base section (4a), which is fastened pivotably to a lock housing (10) with e.g. a pivot pin (9), and a hook section (4b), which adjoins the base section (4a) and protrudes from the lock housing (10) when in the locked position, characterised in that the actuating edge (13) of the blocking plate (11) can be actuated by an inner actuating face (4c) of the hook section (4b).

4. The device according to one of Claims 1 to 3, characterised in that the blocking plate (11) is guided displaceably on the bolt receiving pot (17).

5. The device according to one of Claims 1 to 4, characterised in that the bolt receiving pot (17) is fastened to the strike plate adjustably in a transverse direction (Y) of the strike plate.

6. The device according to Claim 5, characterised in that the bolt receiving pot (17) is fastened to the strike plate with one or more positioning elements (18), e.g. eccentric positioning elements.

7. The device according to one of Claims 1 to 6, wherein the strike plate is U-shaped in cross section with a baseplate (7a) forming the U base and two side legs (7b) adjoining the baseplate (7a) and forming the U legs, characterised in that the blocking plate (11) is guided on the baseplate at the rear and preferably between the side legs at the sides.

8. The device according to one of Claims 1 to 7, characterised in that the blocking plate (11) is movable into the main position by a force, e.g. by gravity and / or a spring force.

9. The device according to Claim 8, characterised in that the pivoting hook bolt (4) can work from below against an upper actuating edge (13) of the blocking plate when pivoting in through the passage opening (8) and in the process lifts the blocking plate (11) against gravity.

10. The device according to Claim 8, characterised in that the pivoting hook bolt (4) can work from above against a lower actuating edge of the blocking plate when pivoting in through the passage opening (8) and in the process lowers the blocking plate against a force, e.g. a spring force.

11. A locking device having a lock, e.g. an espagnolette lock, that can be fastened or is fastened to a door leaf or window leaf and has at least one pivoting hook bolt, and having a bolt receiving device according to one of Claims 1 to 10 that is arranged on or can be fastened to a door frame or window frame.