EP4226005A1 - Schaltsystem fur eine tur mit zutrittskontrolle - Google Patents
Schaltsystem fur eine tur mit zutrittskontrolleInfo
- Publication number
- EP4226005A1 EP4226005A1 EP21802831.4A EP21802831A EP4226005A1 EP 4226005 A1 EP4226005 A1 EP 4226005A1 EP 21802831 A EP21802831 A EP 21802831A EP 4226005 A1 EP4226005 A1 EP 4226005A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- door
- switching system
- rod
- bearing body
- electromagnet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000003780 insertion Methods 0.000 claims abstract description 58
- 230000037431 insertion Effects 0.000 claims abstract description 58
- 238000004873 anchoring Methods 0.000 claims abstract description 11
- 230000002426 anti-panic effect Effects 0.000 claims description 12
- 230000006835 compression Effects 0.000 claims description 11
- 238000007906 compression Methods 0.000 claims description 11
- 239000003086 colorant Substances 0.000 claims 1
- 230000000284 resting effect Effects 0.000 claims 1
- 230000005484 gravity Effects 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B47/06—Controlling mechanically-operated bolts by electro-magnetically-operated detents
- E05B47/0676—Controlling mechanically-operated bolts by electro-magnetically-operated detents by disconnecting the handle
- E05B47/0684—Controlling mechanically-operated bolts by electro-magnetically-operated detents by disconnecting the handle radially
- E05B47/0692—Controlling mechanically-operated bolts by electro-magnetically-operated detents by disconnecting the handle radially with a rectilinearly moveable coupling element
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B65/00—Locks or fastenings for special use
- E05B65/10—Locks or fastenings for special use for panic or emergency doors
- E05B65/108—Electronically controlled emergency exits
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
- E05B2047/0014—Constructional features of actuators or power transmissions therefor
- E05B2047/0018—Details of actuator transmissions
- E05B2047/002—Geared transmissions
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B2047/0072—Operation
- E05B2047/0073—Current to unlock only
- E05B2047/0074—Current to unlock only holding means other than current (mechanical, magnetic)
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B2047/0072—Operation
- E05B2047/0073—Current to unlock only
- E05B2047/0075—Current to unlock only locked by gravity
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B2047/0072—Operation
- E05B2047/0076—Current to lock only, i.e. "fail-safe"
- E05B2047/0077—Current to lock only, i.e. "fail-safe" holding means other than current
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B41/00—Locks with visible indication as to whether the lock is locked or unlocked
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B7/00—Handles pivoted about an axis parallel to the wing
Definitions
- the invention relates to a switching system for a door with access control, thanks to which it is possible to connect the door component on which a person must act to open the door (e.g. a door handle or an anti-panic door handle) and the door lock.
- the door component on which a person must act to open the door e.g. a door handle or an anti-panic door handle
- the door lock e.g. a door lock
- doors with access control the standard situation is that there is no such connection, so it is not possible to open the door at will.
- Examples of doors with access control are fire doors, which are used to limit the spread of a fire, or security doors, which protect those rooms that not everyone is allowed to enter.
- the document EP 754 794 A1 relates to a switching system, the components of which, on the other hand, are not almost all arranged inside the door handle.
- a hollow bearing body is provided, inside which two connecting elements are mounted, one for connecting the switching system to the door handle and the other for connecting the switching system to the door lock.
- This switching system differs in that the two connecting elements are mounted in the bearing body, but cannot be rotated about its longitudinal axis.
- the two connecting elements are those used to connect the switching system to the doorknob and are provided with the door lock, rotatably mounted in the bearing body about its longitudinal axis.
- the technical solution described in this document is therefore very different from that described in the previous document. This difference advises against combining the two known solutions, especially since the other components of the two switching systems, such as. B. the male body, the male means and the drive means, work differently in the two known solutions.
- the object underlying the present invention is therefore to provide a switching system for a door with access control, which eliminates the above-mentioned inconveniences of most of the known solutions and which represents a technical alternative to the switching system of the above-mentioned document EP 754 794 A1.
- a room with several doors can have doorknobs (or similar components) which are all the same, even if there are doors with access control. It will also not be necessary to install a doorknob (or similar item) to be replaced if a door without access control has to be converted into a door with access control.
- the connection between the door handle or a similar component and the door lock occurs when, as a result of the action of the plug-in means, the insertion part of the plug-in body is in the space enclosed by the two plug-in seats, ie. H. when the plug-in body is in its active position.
- the first and second connecting elements are connected to each other and this corresponds to the interconnecting of the door handle (or a similar component such as an anti-panic door handle) and the door lock, because one is connected to the first connecting element and the other to the second connecting element connected is. In this way, the opening movement that the door handle performs due to the action of the person is transmitted to the door lock and the door can be opened.
- plug-in means are operative, preferably comprising a rod which can be brought into an operative position in which the rod holds the plug-in body in its active position, thereby achieving the above-described connection enabling the door to be opened ng is produced .
- the choice of designing the spigot means as a reciprocating rod ensures that movement of the spigot body occurs in a safe and reliable manner.
- the drive means are provided so that the movements of the rod are carried out.
- the drive means comprise an electromagnet provided with a rod, so that precisely the rod of the electromagnet acts as the insertion means.
- the movement of the rod to the working position is due to a magnetic field generated by the electromagnet.
- the drive means comprise a compression spring and a the locking ring attached to the rod .
- the rod that performs the role of the insertion means is the rod of an electromagnet, but in this second embodiment, the movement of the rod into the work position is due to the thrust of the compression spring placed between the locking ring and the electromagnet .
- This second embodiment is particularly intended for doors with access control that must be able to be opened when the electric power fails and in this embodiment the electromagnet serves to keep the rod in the rest position, that is to counteract the action of the compression spring and it generates to For this purpose, a magnetic field whose polarity is reversed compared to the magnetic field generated in the first embodiment. If the electric power fails, the action of the electromagnet ends and the compression spring can move the rod to its working position.
- the return movement of the male body, i. H . from its active position to at least one inactive position can generally be due to gravity alone once the action of the insertion means, i. H. the rod, ends. However, it is preferred that this return movement also takes place in a controlled manner.
- return means are provided which, for. B. are designed as a return spring and act on the male body to bring it back to its active position.
- the male means, i. H. the rod, the return spring together, but as soon as the rod is no longer held in its working position by the insert means, the return spring is free to relax and return the insert body to its inactive position.
- the return spring it is possible, as an alternative to the return spring, to also control the above-mentioned return movement of the plug-in body by means of a magnetic field.
- the insertion part is used as a permanent magnet is designed and if the electromagnet is able to also generate a further magnetic field, but (similarly to the case of the second embodiment) has a polarity which, compared to the magnetic field, is responsible for the movement of the plug-in body into the active position , is inverted, it is in fact possible, by means of the magnetic field s having an inverted polarity, to bring the rod of the electromagnet to its rest position and, as a consequence, because the male part of the male body is magnetically attracted by the rod, also to bring the male body to the active position.
- FIG. 1 an exploded perspective view of some components of a first embodiment of the switching system according to the invention
- FIG. 2 shows a perspective exploded view of two of the components shown in FIG.
- FIG. 1 shows a perspective exploded view of some components of a second embodiment of the switching system according to the invention
- 4 shows a perspective exploded view of the switching system according to the invention, the door handle but not the door lock and also not the door leaf being shown
- Figures 5 and 6 show a detail of the door handle of Figure 4 in two different positions of the door handle
- Figure 7 is a plan view of the hollow bearing body and electromagnet of Figures 1 and 2 when the male body is in its inactive position
- FIG. 8 shows a sectional illustration according to section line S1-S1 of FIG. 7
- FIG. 9 shows a sectional illustration according to section line S2-S2 of FIG.
- Figure 10 is a view similar to Figure 9 but with the male body in its active position; 11 shows a sectional view according to the section line S3-S3 of FIG. 13, namely through one of the two door handles, through the switching system according to the invention and through the door area in which the door handle and the door lock are located; 12 shows a perspective exploded view of the switching system according to the invention, of two door handles and of a door lock; 13 and 14 show an exploded perspective view of the area of the door in which the switching system according to the invention is located, in the case in which two door handles are provided and in the case in which an anti-panic door handle is provided instead of a door handle.
- a switching system for a door with access control serves to connect the door component that a person must act on to open the door (usually a door handle) and the door lock, because in the standard situation such a connection does not exist.
- the switching system comprises a first 1 and a second link 2, of which the first 1 is linked to the door component which must be acted upon in order to open the door, and the second 2 is linked to the door lock.
- a door component is usually a door handle 10 or an anti- panic door handle 14.
- Each of the two connecting elements 1, 2 has an insertion seat 1b, 2b on its own side 1a, 2a.
- the insertion seat 2b clearly visible, which is identical to the insertion seat 1b, of which one sees in Fig. 1, however, only a portion.
- the first 1 and the second connecting element 2 are mounted within a bearing body 3, which is hollow 3 and is also part of the switching system. They 1, 2 are rotatably mounted about the longitudinal axis A-A of the bearing body 3 and, as can be seen from FIG. 1, their sides 1a, 2a, which have the insertion seats 1b, 2b, are directed towards one another and they enclose a free space between them. This space is accessible through an opening 3a provided in the bearing body 3 and extending parallel to the longitudinal axis A-A.
- the bearing body 3 can, see FIGS. 1, may be formed of a center body and two end bodies snapped to the center body.
- the connecting elements 1, 2 protrude from the bearing body 3 with connecting areas, with the connecting elements 1, 2 being connected in a known manner to the door handle 10 or to the anti-panic door handle 14 and to the door lock by means of the connecting areas visible in Fig. 4 (usually positively by means of square pins inserted in housings provided for this purpose, having a square cross-section (see for example Figure 11, in which a square pin 15 connects the door lock to the connecting element 2).
- the switching system also has an insert body 4, which is arranged inside the bearing body 3 and between said two sides 1a, 2a, see FIG. He 4 is along a direction of movement BB, which is perpendicular to the longitudinal axis AA, movable from at least one inactive position to an active position z. B. in Figs. 9 and 10 are visible stored.
- an insertion part 4a of the male body 4 In the inactive position, an insertion part 4a of the male body 4 is not positioned in a free space delimited by the male seats 1b, 2b, whereas in the active position the insertion part 4a of the male body 4 is positioned in this free space and it connects the two connecting elements 1 , 2 with each other.
- Each male seat 1b, 2b is formed of two protrusions extending from the respective side 1a, 2a of the respective connecting element 1, 2 and enclosing between them part of said free space in which the insertion part 4a of the male body 4 is recorded when the latter 4 is in its active position.
- the male body 4 also has two arms 4b which extend symmetrically from the insertion part 4a.
- a support body 4c is provided at the end of each arm 4b, see FIG. 2 which slides on the two sides 1a, 2a of the two connecting elements 1,2.
- These arms 4b serve to balance the male body 4 and ensure that its movements are accurate.
- the protrusions forming the male seats 1b, 2b also have flat indented surfaces on which the arms 4b slidably rest during movements of the male body 4 from its inactive position to its active position and vice versa.
- An anchoring body 5, which is particularly visible in FIGS. 4, 11 and 12, and insertion means are also components of the switching system. As will be explained below, the insertion means serve to move the insertion body 4 from its inactive position to its active position and to hold it in the active position.
- the anchoring body 5 is positioned in the door leaf, see e.g. 11, 13 and 14, and has an interior space 5a in which the door lock is accommodated. He 5 is also equipped with fasteners such. B. threaded holes and screws or the like, provided for attaching to it both the bearing body 3, in which, as can be seen from Fig. 1, many components of the switching system are arranged, as well as the insertion means.
- the anchoring body 5 is already arranged in nerhal b of the door leaf during manufacture of the door leaf. If the door is an access control door, the bearing body and the insertion means are also positioned at the same time, so that the door leaf is already ready to be connected to the door handle 10 or the anti-panic door handle 14, as can be seen from FIGS. 13 and 14, in which the first connecting element 1, which extends through a dedicated hole provided in the door leaf, is visible.
- the anchoring body 5 is placed with play inside the door leaf, in particular with play in a plane perpendicular to the longitudinal axis A-A and containing the direction of movement B-B, which makes it possible to compensate for the unavoidable structural tolerances that exist in the case of assembled doors. and ensures alignment between the doorknob 10 and the door lock.
- the presence of the anchoring body 5 inside the door leaf greatly simplifies the subsequent arrangement of the bearing body 3 and the insertion means.
- the plug-in means comprise m an see figs. 1 and 3, a rod 6 which, along the direction of movement BB, from at least one rest position in which it 6 is not inserted into an opening 3a provided in the bearing body 3, into a working position in which it 6 is in the opening 3a hi is plugged in and keeps the plug-in body 4 in its active position, is movable. During this movement from the rest position to the working position, the rod 6 pushes the insertion part 4a of the plug-in body 4 gradually into the space defined by the plug-in seats 1b, 2b.
- drive means are provided.
- the driving means comprise an electromagnet 7 comprising the rod 6.
- the rod 6 is, due to the action of a magnetic field generated by the electromagnet 7 when an electric current passes through its windings, along the direction of movement B-B and movable from said rest position to said operative position. How it works is as follows. The default situation is that the door cannot be opened, i .e . H. the rod 6 is not inserted in the opening 3a and the insertion part 4a is not inserted in the insertion seats 1b, 2b. For this purpose, the electromagnet 7 must not be active and is therefore not traversed by the electric current.
- electromagnet 7 is crossed by the electric current and it becomes active and generated the magnetic field that causes the insertion of the rod 6 in the opening 3a, which 6 in turn inserts the insertion part 4a in the insertion seats 1b, 2b, thus creating the possibility of being allowed to open the door.
- the drive means comprise, see FIG. locking ring 8b .
- the rod 6 is also in this case the rod of an electromagnet 7', but the electromagnet 7' of this second embodiment acts in a manner different from that of the electromagnet 7 of the first embodiment.
- This second embodiment is specifically designed to
- the compression spring 8a is the one that pushes the insertion part 4a into its active position, whereas the task of the electromagnet 7' is to keep its rod 6 in at least one rest position and to counteract the action of the compression spring 8a. How it works is as follows. The standard situation is that the door cannot be opened, ie the rod 6 is not inserted in the opening 3a and the insertion part 4a is not inserted in the insertion seats 1b, 2b.
- the electromagnet 7' must be active and traversed by the electric current so that its action outweighs the action of the compression spring 8a.
- electric current is no longer supplied to the electromagnet 7', which becomes inactive, what the compression spring 8a enables the rod 6 to be inserted into the opening 3a and the rod 6 enables the male part 4a to be inserted into the male seats 1b, 2b, thus creating the possibility of being allowed to open the door.
- the electrical power fails due to a defect in the electrical system.
- the inserting means and the driving means remain active until the door is closed again. Namely, as soon as the door is closed again, the default situation in which the door cannot be opened is restored.
- the direction of movement BB is in practice along the vertical, so that as soon as the inserting means, ie the rod 6, no longer hold the inserting body 4 in the active position - ie in the case of the first embodiment Execution form no longer supplied electric power to the electromagnet 7 or in the case of two th embodiment - electric current is supplied to the electromagnet 7' - the insertion body 4, in particular its insertion part 4a, moves into its inactive position due to gravity and thereby restores the standard situation of the door.
- return means which act on the plug-in body 4 in order to return it to its inactive position as soon as the action of the plug-in means ends.
- Such return means comprises a return spring 9 disposed within the bearing body 3 and partially wound around a guide projection 3b provided within the bearing body 3 and projecting from the inner wall thereof. Referring to the first embodiment, the return spring 9 is able to return the male body 4 to one of its inactive positions as soon as the electromagnet 7 is no longer traversed by electric current.
- the return spring 9 is able to return the male body 4 to one of its inactive positions as soon as the electromagnet 7' is traversed by the electric current and generates a magnetic field of reversed polarity capable of by overcoming the resistance of the compression spring 8a to move the rod 6.
- the restoration of the standard situation of the door can also be ensured without the return means described above, ie without the return spring 9 .
- the electromagnet 7 can generate a magnetic field having a polarity which, compared to the magnetic field by means which the rod 6 is moved when opening the door is reversed. Owing to the effect of this having a reversed polarity send magnetic field is the rod 6, along the direction of movement BB, also movable from its working position to its rest position.
- the insertion part 4a of the insertion body 4 is made as a permanent magnet and if the rod 6 of the electromagnet 7 acts precisely on the insertion part 4a during its thrust, then it is sufficient to restore the standard situation, the direction of the electric current, the traverses the windings of the electromagnet 7 to reverse. In this way, the magnetic field that moved the rod 6 to its working position is no longer active and in its place the magnetic field of reversed polarity becomes active, which moves the rod 6 to its rest position.
- Two stop projections 3c protrude from the inner wall of the bearing body 3, as can be seen from FIG. These 3c limit the rotational movement of the first connecting element 1 about the longitudinal axis A-A in both directions of rotation, which corresponds to a limitation of the movement of the door handle 10 or the anti-panic door handle 14, which are connected to the first connecting element 1. This is done in that, during the turning movement, one of the projections forming the insertion seat 1b abuts against one of the stop projections 3c.
- the switching system also includes an electronic component 1 1 provided with three different LED lights corresponding to the three are assigned to different door situations: e.g. B. a color indicates that the door cannot be opened; another color signals that the door can be opened and the third color signals malfunctioning, which can be caused both by electrical problems and by an intermediate position of the plug-in body 4.
- the electronic component 11 has a dovetail-shaped cross section
- the doorknob 10 has a seat 10a which also has a dovetail-shaped cross section and in which the electronic component 11 is slidably fitted.
- the seat 10a still see FIG. 4, can be provided on a removable part of the doorknob 10, since this simplifies manufacture.
- a locking mandrel 12 which is visible in FIGS. 4-6 and 11, is part of the switching system.
- the locking mandrel 12 is arranged between one end of a return spring 13 for the door handle 10 and an inner wall of the door handle 10 .
- the locking pin 12 allows the return spring 13 for the door handle 10 to be tensioned during the lowering of the door handle 10, see FIG becomes, see Fig. 4.
Landscapes
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Lock And Its Accessories (AREA)
- Switch Cases, Indication, And Locking (AREA)
- Elevator Door Apparatuses (AREA)
- Selective Calling Equipment (AREA)
- Power-Operated Mechanisms For Wings (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
HRP20240770TT HRP20240770T1 (hr) | 2020-10-05 | 2021-10-01 | Sustav sklopke za vrata s kontrolom pristupa |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT102020000023350A IT202000023350A1 (it) | 2020-10-05 | 2020-10-05 | Sistema di comando di una porta ad accesso controllato |
PCT/IT2021/050303 WO2022074693A1 (de) | 2020-10-05 | 2021-10-01 | Schaltsystem fur eine tur mit zutrittskontrolle |
Publications (3)
Publication Number | Publication Date |
---|---|
EP4226005A1 true EP4226005A1 (de) | 2023-08-16 |
EP4226005C0 EP4226005C0 (de) | 2024-04-03 |
EP4226005B1 EP4226005B1 (de) | 2024-04-03 |
Family
ID=74046056
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21802831.4A Active EP4226005B1 (de) | 2020-10-05 | 2021-10-01 | Schaltsystem fur eine tur mit zutrittskontrolle |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP4226005B1 (de) |
ES (1) | ES2982520T3 (de) |
HR (1) | HRP20240770T1 (de) |
HU (1) | HUE067112T2 (de) |
IT (1) | IT202000023350A1 (de) |
MD (1) | MD4226005T2 (de) |
PL (1) | PL4226005T3 (de) |
WO (1) | WO2022074693A1 (de) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5475996A (en) * | 1994-08-29 | 1995-12-19 | Chen; Tsun-Hsing | Electromagnetic door lock |
ES2191522B1 (es) * | 2000-12-11 | 2004-11-01 | Talleres De Escoriaza, S.A. | Dispositivo de embrague para cerrajeria. |
DE102008063061A1 (de) * | 2008-12-12 | 2010-06-17 | Bin Li | Betätigungsvorrichtung für ein elektronisches Türschloß |
DE102013100304A1 (de) * | 2013-01-11 | 2014-07-17 | Carl Fuhr Gmbh & Co. Kg | Kupplungsvorrichtung |
-
2020
- 2020-10-05 IT IT102020000023350A patent/IT202000023350A1/it unknown
-
2021
- 2021-10-01 WO PCT/IT2021/050303 patent/WO2022074693A1/de unknown
- 2021-10-01 PL PL21802831.4T patent/PL4226005T3/pl unknown
- 2021-10-01 EP EP21802831.4A patent/EP4226005B1/de active Active
- 2021-10-01 HR HRP20240770TT patent/HRP20240770T1/hr unknown
- 2021-10-01 ES ES21802831T patent/ES2982520T3/es active Active
- 2021-10-01 MD MDE20230807T patent/MD4226005T2/ro unknown
- 2021-10-01 HU HUE21802831A patent/HUE067112T2/hu unknown
Also Published As
Publication number | Publication date |
---|---|
HUE067112T2 (hu) | 2024-09-28 |
ES2982520T3 (es) | 2024-10-16 |
IT202000023350A1 (it) | 2022-04-05 |
PL4226005T3 (pl) | 2024-08-19 |
EP4226005C0 (de) | 2024-04-03 |
MD4226005T2 (ro) | 2024-07-31 |
HRP20240770T1 (hr) | 2024-09-13 |
WO2022074693A1 (de) | 2022-04-14 |
EP4226005B1 (de) | 2024-04-03 |
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