Locking system for a pivot door, a pivot door and a method for operating a locking system and / or a pivot door

Abstract

The invention relates to a locking system (6) for a pivot door, the door leaf (2) of which is rotatable about a rotational axis (3) located within the door leaf (2), wherein the rotational axis (3) divides the door leaf (2) into a first section (2a) assigned to an actuating side (B) and a second section (2b) assigned to a bearing side (L) opposite the actuating side (B), with a first espagnolette lock (7) arranged on the actuating side (B), which has a first main lock (9) and one or more additional locking devices (11) connected to the first main lock (9) via one or more espagnolettes (13), and a second espagnolette lock (8) arranged on the bearing side (L), which has a second main lock (10) and one or more additional locking devices (12) connected to the second main lock (10) via one or more espagnolettes (14).wherein the first espagnolette lock (7) has a first drive (15) and the second espagnolette lock (8) has a second drive (16), with which the first and second espagnolette locks (7, 8) can be at least unlocked by motor, wherein the first main lock (15) has a lock nut (25) into which an actuating element, e.g. a door handle (24), is inserted or can be inserted, and has a nut switch (26) that can be actuated by the lock nut (25) when the nut is actuated, wherein by actuating the nut switch (26), both the first drive (15) of the first espagnolette lock and the second drive (16) of the second espagnolette lock can be controlled for unlocking.

Description

[0001] The invention relates to a locking system for a pivot door and a pivot door and a method for operating a locking system and / or a pivot door.

[0002] A pivot door is a door whose door leaf can be rotated within a door frame about an axis of rotation located within the door leaf. The vertical axis of rotation, for example, divides the door leaf into a first section assigned to the operating side and a second section assigned to a bearing side opposite the operating side. The pivot door differs from conventional revolving doors in the special pivot bearing between the door leaf and frame. In a conventional revolving door, the door leaf is pivotally mounted in the vertical frame profile via hinges or door hinges. In conventional doors, this side is also called the hinge side, while the door lock, e.g. a connecting rod lock, is mounted on the opposite side and therefore the lock side.The burglar security of such conventional revolving doors can be increased by so-called rear hinge security devices, which are also arranged on the hinge side.

[0003] In contrast, a pivot door does not have the hinges / door hinges mounted on the side of the door leaf. Instead, the pivot point is relocated into the leaf area. The door leaf is mounted so that it can rotate about the vertical axis using pivot bearings on the top and bottom of the door leaf. For this purpose, upper and lower bearings are arranged on the door leaf, the counter bearings of which are installed in the upper frame on the one hand and in the floor area, e.g. in a lower threshold profile. As a rule, the second section of the door leaf, which is assigned to the bearing side, is narrower than the first section, which is assigned to the operating side and therefore the lock side. The width of the first section is preferably less than 50% of the total width, more preferably less than 40% of the total width, e.g. 20% to 35% of the total width.

[0004] One advantage of pivot doors over conventional revolving doors with hinges is the high load-bearing capacity of the bearings, which particularly facilitates the construction of very tall and / or very wide doors and / or heavy door leaves. A disadvantage of pivot doors can generally be the reduced burglar resistance on the hinge or bearing side, especially if there is no locking option on the bearing side. This is especially true since conventional rear hinge security devices used in revolving doors cannot be used, or only with difficulty, due to the rotation curve of the hinge or bearing side of the leaf.

[0005] For this reason, pivot doors are already known in practice that are equipped with a locking device not only on the lock side but also on the hinge side, so that, for example, a drive rod lock is used on both the lock side and the hinge side. However, these solutions have disadvantages. This particularly concerns operation. This is where the invention comes in.

[0006] The invention is based on the object of creating a locking system for a pivot door of the type described above, which is characterized by improved operation while at the same time offering high security and functionality.

[0007] To solve this problem, the invention teaches a locking system for a pivot door, with a first espagnolette lock arranged on the actuation side or lock side (front side), which has a first main lock and one or more additional locking devices that are connected to the first main lock via one or more espagnolettes, and a second espagnolette lock arranged on the bearing side or hinge side (front side), which has a second main lock and one or more additional locking devices that are connected to the second main lock via one or more espagnolettes, wherein the first espagnolette lock has a first drive and the second espagnolette lock has a second drive, with which the first espagnolette lock and the second espagnolette lock can be at least unlocked by an electric motor, wherein the first main lock (of the first espagnolette lock) has a lock nut into which (e.g. from the inside) an actuating element, e.g.a door handle, which is inserted or can be inserted, and has a nut switch which can be actuated by the lock nut when the nut is actuated (e.g. when the nut is rotated), whereby by actuating the nut switch both the first drive of the first espagnolette lock and the second drive of the second espagnolette lock can be or are actuated for unlocking.

[0008] The invention is initially based on the realization that, in order to increase security, it is advantageous to provide a pivot door not only with a first espagnolette lock with multi-point locking on the lock side, but also with a second espagnolette lock with multi-point locking on the bearing side (which can also be referred to as the hinge side, although conventional door hinges are omitted). Both the first espagnolette lock and the second espagnolette lock each have a main lock and one or more additional locking devices, with the main lock, also referred to as the center lock, preferably having a conventional bolt on the one hand and a spring-loaded lock latch on the other. The additional locking devices each have one or more locking elements, e.g. bolt bolts, swivel bolts, deadbolts and / or latches.Both the first espagnolette lock and the second espagnolette lock can each be unlocked via a drive, e.g., an electric motor. This means that all locking elements of the main lock and the additional locking mechanisms of both espagnolette locks can be (fully) retracted via the drive without manual operation (e.g., via a door handle or a locking cylinder), allowing the door to be opened. Preferably, the drives can be controlled via access control devices, thus unlocking the espagnolette locks. This can be done, for example, via radio handheld transmitters, transponders, biometric access control devices, smartphones, or the like. The two drives of the two espagnolette locks are always controlled after receiving at least one opening signal, thus moving the espagnolettes to unlock the espagnolette lock.At least the unlocking of the espagnolette locks used is therefore always possible via a drive and therefore preferably via an electric motor.

[0009] The first espagnolette lock and / or second espagnolette lock can be designed, for example, as a (mechanically) self-locking automatic lock. An automatic lock is a espagnolette lock that can be unlocked via the drive (motor-driven), but which automatically locks when the door is closed without using the drive, by mechanically moving the locking elements into the locking position without using the drive. This (mechanical) self-locking can be triggered, for example, via buttons or release magnets. Such self-locking automatic locks are known from the prior art, e.g., from DE 10 2017 105 125 A1 and DE 10 2008 011 551 A1, which can be used within the scope of the invention. Additional locking systems with just a single locking element can be used, e.g., a latch bolt.Alternatively, additional locking devices are used, each of which is equipped with several locking elements, e.g. with a latch bolt or a latch on the one hand and a swivel hook bolt on the other (cf. DE 10 2017 105 125 A1).

[0010] Alternatively, the first espagnolette lock and / or the second espagnolette lock can be designed as a fully motorized lock, in which both the unlocking and the locking are realized via one or more drives.

[0011] A particularly advantageous feature of the invention is that the locking system can be opened manually, at least from the inside of the door, using a conventional door handle or a comparable operating element (e.g., an operating rod), as is usual with conventional swing doors. For this purpose, the first espagnolette lock in the center lock, assigned to the lock side, is equipped with a conventional lock nut, into which, for example, a door handle or a comparable operating element is or is inserted. However, the functionality of the lock nut and its interaction with the lock mechanism are adapted according to the invention to the specific design and functionality of a locking system for a pivot door.This is because, in principle, only the first espagnolette lock could be mechanically unlocked via the lock nut arranged in the first espagnolette lock, as there is no mechanical operative connection between the first espagnolette lock and the second espagnolette lock. Against this background, according to the invention, a nut switch or nut contact is provided in the main lock of the first espagnolette lock, which can be operated or activated by the lock nut and consequently by operating the handle. By operating the nut switch, both the first drive of the first espagnolette lock and the second drive of the second espagnolette lock can be controlled to unlock, i.e. by operating the lock nut (e.g. by operating the door handle), both the first espagnolette lock and the second espagnolette lock can be opened via the drives (e.g. electric motors), triggered by the handle orThe follower of the first lock, which actuates a switch located in the first lock or interacts with such a switch. A handle can be omitted in the area of the second lock. The center lock of the second lock can be equipped with a lock follower in the conventional manner. However, this is preferably nonfunctional in the second espagnolette lock, especially since a handle or similar actuating element is omitted on the bearing side. The second lock on the bearing side, without a door handle or other manual actuating elements, therefore does not serve as an operator, but rather increases security and thus burglary protection.What is interesting in the context of the invention is that with just one door handle on the lock side, not only the first espagnolette lock on the lock side, but also the second espagnolette lock on the bearing side are (completely) unlocked, so that a door can be opened using a conventional handle, at least from the inside of the door, with simple handling and without additional operating elements.

[0012] Advantageous developments of the invention are explained below without limiting the scope of protection: Preferably, the lock nut of the first espagnolette lock is coupled to the lock mechanism in such a way that at least one locking element (e.g., the lock latch of the main lock and / or a latch bolt of the additional locking mechanism) cannot be retracted or at least cannot be fully retracted via the nut actuation. The invention is based on the finding that, according to the invention, complete unlocking of the first espagnolette lock (and, incidentally, also of the second espagnolette lock) is always achieved via the drives, e.g., electric motors, so that conventional mechanical unlocking is not necessary.In principle, an (additional) mechanical unlocking of the first espagnolette lock would not be disruptive, since according to the invention, unlocking of both the first espagnolette lock and the second espagnolette lock is naturally desired. The preferred embodiment, in which the lock follower is coupled to the lock mechanism in such a way that at least one of the locking elements is not or not fully retracted, however, prevents the first espagnolette lock from being unlocked too quickly before the second espagnolette lock is (motor-driven) unlocked if a handle is operated too quickly manually. This therefore ensures that the door leaf cannot be swung open, even if the handle is operated very quickly manually, before the first espagnolette lock has been fully (motor-driven) unlocked via the first drive.Overall, it is ensured that the lock side is not unlocked via the handle faster than the motorized unlocking of both locks takes. Attempting to prematurely open the door leaf before the second espagnolette lock on the bearing side has been fully unlocked can lead to opening problems and, in particular, to lock malfunctions.

[0013] In terms of construction, this option can be implemented mechanically by completely decoupling the lock nut from the lock mechanism, so that the operation of the lock nut does not lead to a mechanical retraction of the locking elements at all.

[0014] Preferably, however, the invention is implemented in such a way that, although a mechanical coupling is implemented, this cannot lead to complete mechanical unlocking. In structural terms, this is achieved, for example, in that the lock mechanism of the main lock has, in a basically known manner, a longitudinally displaceable lock chain, also referred to as a drive rod connecting slide, which is displaced in the longitudinal direction of the lock as the lock nut rotates and can be displaced over a predetermined full travel range in order to fully retract the locking elements. In this case, it is provided that the lock nut is coupled to the lock chain in such a way that the lock chain can be displaced over only a reduced travel range by rotating the lock nut. In this preferred variant, it is therefore ensured that a complete rotation of the lock nut ora complete operation of the handle only leads to a reduced displacement of the lock chain, so that at least one of the locking elements, e.g. the latch of the main lock and / or a locking element of a secondary locking device, e.g. a latch bolt, is not retracted or is not fully retracted. The lock nut is therefore coupled to the lock chain in such a way that when the lock nut is rotated through a full unlocking angle, the lock chain is only moved by the reduced travel. This can be achieved, for example, by the lock nut first being able to be rotated from its basic position through an idle angle before the lock chain begins to move. For example, it can be provided that when the lock nut is rotated through a full unlocking angle, the lock chain is only moved by a reduced travel of less than 80%, e.g. less than 60% of the full travel.In any case, these measures ensure that very quick manual opening via the door handle does not lead to malfunctions on the bearing side.

[0015] In a preferred development, the first main lock (of the first espagnolette lock) is additionally equipped with a locking cylinder (profile cylinder) for manual, key-operated unlocking. The invention draws on known prior art, for example, in that the locking cylinder acts on the lock chain via a change lever, so that by actuating it with the locking cylinder, the lock chain can be moved over its full travel to completely unlock the first main lock. This allows the first main lock to be reliably unlocked even if the motor-driven unlocking does not work, e.g., in the event of a power failure. It is interesting to note that the locking cylinder enables the lock chain to be moved completely and thus completely unlocked, whereas the door handle, as described, does not allow the lock chain to be moved at all or only over a reduced travel.

[0016] Particularly preferably, the second main lock of the second espagnolette lock is also equipped with a locking cylinder (profile cylinder) for manual, key-operated unlocking. Here, too, a generally familiar center lock can be used, as the locking cylinder preferably operates via a change lever on the lock chain, with the lock cylinder moving the lock chain over its full travel. Since the second espagnolette lock is generally not equipped with a door handle, it is irrelevant for this second espagnolette lock whether or not complete unlocking is possible via the lock follower. It is important that, in the preferred version, the second espagnolette lock can also be emergency unlocked via the locking cylinder, for example, if motorized unlocking is not possible due to a power failure or other malfunction.

[0017] According to a further, particularly important, feature of the invention, it is ensured that the second espagnolette lock is unlocked with a time delay relative to the first espagnolette lock in order to avoid malfunctions when opening the door. Thus, the first drive and the second drive can control the locking elements of the two espagnolette locks in such a way that the (complete) unlocking of the first espagnolette lock and the second espagnolette lock occurs with a time delay, by preferably retracting the locking elements of the second espagnolette lock with a time delay relative to the locking elements of the first espagnolette lock. This ensures that the second, bearing-side espagnolette lock unlocks ahead of the first, operating-side espagnolette lock. This can be achieved by suitable control or activation of the two locks.In principle, the same motor drives can be used for both locks, which are then activated with a time delay, for example, via a control system. This functionality can also be achieved by designing the drives differently, so that they unlock the locks at different speeds when activated simultaneously. This can be achieved by using different motor speeds or, preferably, by a delay integrated into a drive. In any case, it is optionally suggested to modify the motor drive on the bearing side in such a way that the hinge-side multi-point locking device leads the lock-side multi-point locking device. This has the advantage that the locking device on the usually narrower bearing side unlocks somewhat faster than the locking device on the wider opening side. In unfavorable opening conditions, this lead contributes to better opening comfort. For example, ifIf motor drives are used that run at the same speed and are activated simultaneously, this option can be implemented by staggering the limit switches of the connecting rod locks or drives, so that the connecting rods are moved with a time delay. Please also refer to the figure description for more information.

[0018] Of particular importance within the scope of the invention is the possibility of lever operation of the first espagnolette lock in combination with the follower switch integrated into the main lock, via which the unlocking is initiated by the drive. For this purpose, the follower switch can be designed as a switch arranged in the effective range, e.g. in the rotation range, of the lock follower, which operates contactlessly or with contact. The lock follower can have a follower arm in a basically known manner, which is also responsible, for example, for the manual displacement of the lock chain, so that the projecting follower arm moves the lock chain. The follower switch can be arranged in the effective range of this follower arm or in a different effective range of the lock follower.In the case of a contact switch, it may be useful for the contact switch to be pressed / activated in its initial position (with the handle not actuated). After actuation, the contact switch leaves the contact switch as the lock follower rotates, thereby sending an opening signal to both drives, which initiates the two locking mechanisms. However, other switch circuits, especially contactless switches, are also possible.

[0019] Within the scope of the invention, a drive is / are provided in each of the first espagnolette lock and the second espagnolette lock, which, for example, ensures that the espagnolettes are moved during locking. These drives can be designed as electric motor drives (with one or more drives and, if necessary, a gear). Since the drives are integrated into the door leaf or arranged on the door leaf, a power supply must be guaranteed within the door leaf or on the door leaf. This can be implemented, for example, via a cable, by routing cables for the power supply and, optionally, data supply via the bearing points, e.g. through the pivot bearings of the pivot door. In a particularly advantageous development of the invention, however, power supply via cables via the pivot bearings is dispensed with.Instead, at least one tappet contact unit is provided for power transmission from a frame-side power supply to the drives and / or the control system arranged in or on the door leaf. Such tappet contact units are generally known in conventional revolving doors with classic door hinges and are arranged on the hinge side in conventional revolving doors. Such embodiments are described, for example, in EP 1 455 038 A2 and DE 20 2018 105 006 U1, and these embodiments can generally be used according to the invention. It is expedient to arrange a tappet contact unit on the bearing-side end face of the door leaf, e.g., above or alternatively below the second espagnolette lock.Since the geometry and in particular the relative movement between the rear end face of the door leaf and the door frame in pivot doors differs from that of a conventional revolving door, it may be expedient to adapt the plunger contact unit for the pivot door. To this end, the invention optionally proposes that the plunger contact unit not only has one or more contact plungers on the door leaf side and one or more contact surfaces on the frame side, for example, whereby the contact plungers can make contact with the contact surfaces when the door is closed, but that the contact surfaces have one or more start-up ramps and consequently obliquely oriented start-up surfaces, or that such start-up ramps are assigned to the contact surfaces and are preferably arranged in front of them. This provides a ramp in the form of a slope for the plungers. This slope enables the spring-loaded plungers to slide onto the contact surfaces.

[0020] The invention also relates to a pivot door with a door leaf that can be rotated about a rotation axis located within the door leaf, wherein the rotation axis of the door leaf is divided into a first section associated with the actuating side and a second section facing away from the actuating side, wherein the second section preferably has a smaller width than the first section. According to the invention, this pivot door is equipped with a locking system of the type described arranged on the door leaf. The locking system according to the invention is therefore also protected in combination with a pivot door or within a pivot door.

[0021] Furthermore, the invention relates to a method for operating a locking system of the type described and a method for operating a pivot door of the type described.

[0022] Of particular importance in the operating method is that both the first espagnolette lock is unlocked by means of a first drive and the second espagnolette lock is unlocked by means of a second drive by retracting the locking elements of the espagnolette locks from the respective drive. According to the invention, by actuating a nut switch, e.g. by pressing a door handle, both the first drive of the first espagnolette lock and the second drive of the second espagnolette lock are controlled and the espagnolette locks are thereby (completely) unlocked. According to the invention, the two locks are therefore opened via the drives, triggered by actuating the lock nut of the first lock. Particularly preferably, the unlocking of the two espagnolette locks takes place with a time delay in the manner described in order to avoid disruptions when opening the door leaf.

[0023] The invention will be explained in more detail below with reference to drawings which merely represent exemplary embodiments. Fig. 1 a pivot door with a locking system according to the invention in a front view with the door leaf closed, Fig. 2 the object according to Fig. 1 in a perspective view with the door leaf open, Fig. 3 the center lock of the first espagnolette lock of the locking system in a first functional position (in a rear view), Fig. 4 the object according to Fig. 3 in a second functional position, Fig. 5 the electromotor drives of the two espagnolette locks, Fig. 6 the plunger unit of a plunger contact unit and Fig. 7 the frame-side contact part of the plunger contact unit in two variants.

[0024] The figures show a pivot door with a door frame 1 and a door leaf 2 which can rotate within the door frame 1. The door leaf 2 is not hinged to the vertical frame part via hinges as is the case with conventional revolving doors, but is rotatable about a pivot axis 3 located within the door leaf 2. For this purpose, the door leaf 2 is mounted on the upper and lower frame profiles of the door frame 1 or on the floor via an upper pivot bearing 4 and a lower pivot bearing 5. The vertical pivot axis 3 within the door leaf divides the door leaf 2 into a first section 2a assigned to the actuation side B and a second section 2b assigned to the bearing side L, the bearing-side second section 2b being narrower in the exemplary embodiment than the actuation-side first section 2a.The pivot door is equipped with a locking system 6, which has a first espagnolette lock 7 on the actuation side B and a second espagnolette lock 8 on the bearing side L. The first espagnolette lock 7 has a first main lock 9 and a plurality of additional locks 11, wherein the additional locks 11 are connected to the first main lock 9 via espagnolettes 13. The second espagnolette lock 8 has a second main lock 10 and also a plurality of additional locks 12, which are connected to the second main lock 10 via espagnolettes 14. Furthermore, both the first espagnolette lock 7 and the second espagnolette lock 8 each have a drive, i.e. a first drive 15 and a second drive 16, which operate on the respective espagnolettes 13, 14, such that the respective espagnolette lock 7, 8 can be unlocked via the drives 15, 16.The drives 15, 16, which can be electric motor drives with one or more electric motors 17 and a gear 18, move the connecting rods 13, 14 and thus retract the locking elements to unlock the respective connecting rod lock, allowing the door to be opened. In the exemplary embodiment, both the first connecting rod lock 7 and the second connecting rod lock 8 are self-locking automatic locks. The drives 15, 16 only serve to unlock and consequently retract the locking elements. Locking occurs automatically and thus independently when the door leaf 2 is closed, in that a release mechanism (e.g., mechanical or magnetic) ensures mechanical self-locking of the connecting rod locks 7, 8 when the door leaf 2 is closed. Alternatively, the locks shown can also be designed as fully motorized locks.

[0025] In the illustrated embodiment, the first main lock / center lock 9 has a bolt 19 and a latch 20. The same applies to the second center lock 10. The additional locking mechanisms 11, 12 of the two espagnolette locks each have two locking elements in the illustrated embodiment, e.g., a latch bolt 21 or bolt bolt on the one hand and a swivel hook bolt 22 on the other. The design and functionality of the espagnolette locks 7, 8 and in particular the additional locking mechanisms 11, 12 can be based on the state of the art, e.g., the additional locking mechanisms from DE 10 2017 105 125 A1 or DE 10 2008 011 551 A1.

[0026] The locking system is also equipped with a receiving device 23, e.g., a radio module, which can be arranged in the door frame 1 or in the door leaf 2, e.g., on the drive 15 of the first espagnolette lock 7. Wiring between the radio module and the drives is not shown in the figures. The two drives 15, 16 can be controlled via a radio signal, e.g., from a handheld radio transmitter or another access control device, and thus the espagnolette locks 7, 8 can be unlocked. However, according to the invention, alternatively or additionally, unlocking of the locking system is provided via an actuating element, e.g., a door handle 24. For this purpose, the first main lock 9 is equipped in a known manner with a lock follower 25, into which, e.g., a door handle 24 or another actuating element is inserted from the inside of the door (with a square pin).The main lock 9 also contains a switch, namely a nut switch 26, which can be actuated via the lock nut 25 or during the rotation of the lock nut 25. By actuating this nut switch 26, both the first drive 15 and the second drive 16 can be controlled and thus the two espagnolette locks 7, 8 can be unlocked. According to the invention, both espagnolette locks 7, 8 are therefore unlocked via the drives 15, 16, triggered by actuating the handle of the first espagnolette lock 7. The second espagnolette lock 8 is not equipped with a handle. The second espagnolette lock 8 therefore does not serve to operate or actuate the locking system 6, but rather to increase burglary security. In contrast to a conventional revolving door with hinges, a pivot door lacks the hinges on the bearing side L, which also fundamentally contribute to improving burglary security.In the pivot door or locking system according to the invention, the locking elements of the second espagnolette lock 8 are provided on the bearing side, which optimizes burglary protection. What is interesting about the illustrated embodiment is that the lock follower 25 of the first espagnolette lock 7 is coupled to the lock mechanism in such a way that at least one of the locking elements, e.g., the lock latch 20 of the main lock 9 and / or a latch bolt 21 or bolt bolt of the additional locking mechanism 11, is not retracted, or at least not completely retracted, upon actuation of the follower. Therefore, complete actuation of the door handle 24 does not lead to complete mechanical unlocking of the first espagnolette lock 7. Complete unlocking occurs exclusively via the electric motor drive 15, which is controlled via the follower switch 26.This has the advantage that the unlocking of the first espagnolette lock 7 can be synchronized with the unlocking of the second espagnolette lock 8 or can be timed to match it, by ensuring in any case that the first espagnolette lock 7 does not unlock before the second espagnolette lock 8. This is because such premature unlocking of the first espagnolette lock 7 and the subsequent attempt to open the leaf 2 can lead to malfunctions in the area of the second espagnolette lock 8 on the bearing side. This functionality is made possible in the locking system 6 according to the invention by an optimized design of the main lock 9 of the first espagnolette lock 7. The lock mechanism of the first main lock 9 has, in a known manner, a longitudinally displaceable lock chain 27, which is also referred to as an espagnolette connecting slide and which is connected to the (in . Fig. 3 and 4not shown) drive rods 13, so that as the lock chain 27 is moved, the drive rods 13 are moved and thus, for example, the locking elements of the additional locks (and also of the main lock) are retracted. To fully retract all locking elements, the lock chain 27 can be moved over a predetermined, full travel range. The lock nut 25 is now coupled to this lock chain 27 in such a way that the lock chain 27 can be moved over only a reduced travel range by rotating the lock nut 25, so that when the lock nut 25 is rotated over a full unlocking angle, the lock chain 27 is only moved by this reduced travel range. The result of this is that due to the reduced displacement of the lock chain 27, at least one of the locking elements is not fully retracted.In the illustrated embodiment, this is achieved by removing the lock nut 25 from the position shown in . Fig. 3 shown basic position is first rotated by an empty angle before the displacement of the lock chain 27 according to Fig. 4 This ensures that the first espagnolette lock 7 is not unlocked via the handle 24 any faster than the motorized unlocking of the two locks 7, 8 via the motors 15, 16.

[0027] In detail, Fig. 3 and 4 It should be noted that the Fig. 3 and 4 the Mittenschloss 9 from Fig. 1 in an opposite view. When the door handle 24 is operated, after a small angle of rotation from the basic position, the lock follower 25 leaves the switch 26, e.g., a microswitch, and this sends an opening signal to the two motors 15, 16, thereby triggering the two locking mechanisms of the two locks. By operating the handle 24, the main bolt 19 and the swivel bolt 22 are simultaneously retracted. The main latch 20 and the latch bolts 21 of the secondary locking mechanisms, however, remain extended to a certain extent. This protrusion ensures that the lock side B is not unlocked mechanically via the handle 24 any faster than the motorized unlocking. Starting from the functional position in Fig. 3 The lock nut 25 first rotates through an empty angle. Only then does the mechanical displacement of the lock chain 27 via the lock nut 25 begin.

[0028] It is also interesting to note that the first main lock 9 is equipped with a (merely indicated) locking cylinder 28 for manual, key-operated unlocking. This locking cylinder 28 operates, for example, via a change lever on the lock chain 27. The rotation of the locking cylinder 28 results in a complete displacement of the lock chain 27 over the full travel range, so that all locking elements can be retracted via the locking cylinder 28, even independently of the electric motor drive 15. Consequently, while the lock chain 27 can be displaced over the full travel range via the locking cylinder 28, the lock chain 27 can only be displaced over the reduced travel range via the lock follower 25.

[0029] Furthermore, it is indicated that the second espagnolette lock 10 is also equipped with a locking cylinder 29, so that both espagnolette locks can be manually unlocked in the sense of an emergency release, e.g., if the drives do not function due to a power failure.

[0030] Furthermore, it is provided that the first drive 15 and the second drive 16 control the locking elements in such a way that the complete unlocking of the first espagnolette lock 7 and the second espagnolette lock 8 takes place with a time delay, in which the locking elements of the second espagnolette lock 8 are preferably retracted with a time lead compared to the first espagnolette lock. For this purpose, (limit) switches 30 (e.g. Hall sensors) are provided for the drives in a basically known manner, which are actuated, for example, via magnetic slides 31, i.e. via magnets 31a attached to a slide 31b, which act with an espagnolette connecting slide 32 of the drives. For this purpose, Fig. 5 which show the two drives 15, 16 side by side for comparison (each in two different views with the housing open). They are basically designed identically, but differ in the arrangement of the magnets for actuating limit switches. The two drives 15, 16 are activated simultaneously by the control system or the nut switch 26. However, due to the different design of the magnet carriages 31, the limit switches 30 are actuated and the locks are thus unlocked at different times. In the exemplary embodiment shown, the second drive 16 on the bearing side L is equipped with an early unlocking function when activated simultaneously in order to avoid blockages of the bearing-side lock 15. For this purpose, a second magnet 31a (or alternatively a differently positioned magnet) is provided in the second drive 16 and is integrated into the carriage 31b.The drive 15 of the first espagnolette lock 7 has only one magnet 31a on the slide 31b. Hall sensors acting as limit switches 30 are located on the motor circuit board, which are required for starting and stopping the motor drive. The second magnet 31a of the magnetic slide 31 of the second drive 16 reaches the limit switch a few millimeters earlier than the magnet 31a of the first drive 15, thereby providing a lead time Z of several millimeters and thus also a lead time for unlocking. The electronic circuit board provided in the drives 15, 16 is shown in . Figur 5 not shown for reasons of clarity.

[0031] For the power supply of the drives 15, 16, the pivot door shown is equipped with a tappet contact unit 31, with which a frame-side power supply 32 can be contacted with the drives 15, 16. The tappet contact unit 31 has a tappet unit 33 arranged on the door leaf 2 (according to Fig. 6 ) with several (spring-loaded) contact plungers 34 and on the frame part 1 a contact unit 35 (according to Fig. 7 ) with several contact surfaces 36, wherein the contact plungers 33 are contacted with the contact surfaces 36 when the door is closed. Such a plunger contact unit 31 is known, for example, from DE 20 2018 105 006 U1 and EP 1 455 038 A2. In the exemplary embodiment, the frame-side contact unit 35 has one or more starting ramps 37 and consequently obliquely oriented starting surfaces, which are arranged in front of the contact surfaces 36. This enables optimal adaptation to the geometry or kinematics of the pivot door and in particular the kinematics in the area of the bearing side L, which differs from the kinematics of a conventional revolving door with door hinges. The provided slope 37 enables the spring-loaded plungers 34 to guide onto the contact surfaces 36. The Fig. 7two different variants of such a contact unit 35 with differently arranged starting ramps 37. The connection or wiring of the tappet contact unit 31 or its wing-side tappet unit 33 with the other components of the locking system within the wing 2 is not shown in the figures.

[0032] Furthermore, there is the option of equipping the operating-side espagnolette lock or its center lock with a switching contact for the locking cylinder or profile cylinder. This profile cylinder switching contact makes it possible to motorize both espagnolette locks 7 and 8 when the profile cylinder is manually operated. Details of this option are not shown in the figures.

Claims

1. Locking system (6) for a pivot door, the door leaf (2) of which is rotatable about a rotation axis (3) located within the door leaf (2), the rotation axis (3) dividing the door leaf (2) into a first section (2a) associated with an actuating side (B) and a second section (2b) associated with a bearing side (L) opposite the actuating side (B), with a first espagnolette lock (7) arranged on the actuating side (B), which has a first main lock (9) and one or more additional locking devices (11) connected to the first main lock (9) via one or more espagnolettes (13), and with a second espagnolette lock (8) arranged on the bearing side (L), which has a second main lock (10) and one or more additional locking devices (12) connected to the second main lock (10) via one or more espagnolettes (14),wherein the first espagnolette lock (7) has a first drive (15) and the second espagnolette lock (8) has a second drive (16), with which the first and second espagnolette locks (7, 8) can be at least unlocked by motor, wherein the first main lock (15) has a lock nut (25) into which an actuating element, e.g. a door handle (24), is inserted or can be inserted, and has a nut switch (26) that can be actuated by the lock nut (25) when the nut is actuated, wherein by actuating the nut switch (26), both the first drive (15) of the first espagnolette lock and the second drive (16) of the second espagnolette lock can be controlled for unlocking.

2. Locking system according to claim 1, wherein the first espagnolette lock (7) is designed as a self-locking automatic lock or as a fully motorized lock and / or the second espagnolette lock (8) is designed as a self-locking automatic lock or as a fully motorized lock.

3. Locking system according to claim 1 or 2, wherein the lock nut (25) of the first espagnolette lock (7) is coupled to the lock mechanism in such a way that at least one locking element, e.g. a lock latch (29) of the main lock (9) and / or a latch bolt (21) of an additional lock (11), cannot be retracted or cannot be retracted completely via the nut actuation.

4. Locking system according to one of claims 1 to 3, wherein the lock mechanism of the first main lock (9) of the first espagnolette lock (7) has a longitudinally displaceable lock chain (27) which can be displaced over a predetermined, full travel path for the complete retraction of the locking elements, wherein the lock nut (25) is coupled to the lock chain (27) in such a way that the lock chain (27) can be displaced over only a reduced travel path by rotating the lock nut (25).

5. Locking system according to claim 4, wherein the lock nut (25) is coupled to the lock chain (27) in such a way that when the lock nut (25) is rotated over a complete unlocking angle, the lock chain (27) can only be displaced by the reduced travel.

6. Locking system according to claim 4 or 5, wherein the lock nut (25) is initially rotatable from the basic position by an empty angle before a displacement of the lock chain (27) begins.

7. Locking system according to one of claims 1 to 6, wherein the first main lock (9) is equipped with a locking cylinder (28) for manual key-operated unlocking, which works (e.g. via a change lever) on the lock chain (27), wherein the lock chain (27) can be displaced preferably over the full travel via the locking cylinder (28).

8. Locking system according to one of claims 1 to 7, wherein the second main lock (10) is equipped with a locking cylinder (29) for manual key-operated unlocking.

9. Locking system according to one of claims 1 to 8, wherein the first drive (15) controls the locking elements of the first espagnolette lock (7) and the second drive (16) controls the locking elements of the second espagnolette lock (8) in such a way that the unlocking of the first espagnolette lock (7) and the second espagnolette lock (8) takes place with a time delay, in that the locking elements of the second espagnolette lock (8) are preferably retractable or are retracted with a time lead compared to the first espagnolette lock (7).

10. Locking system according to one of claims 1 to 9, wherein the first drive (15) and the second drive (16) are each controlled by at least one limit switch actuated by the respective drive rod, wherein the limit switch of the second drive rod lock can be actuated offset relative to the limit switch of the first drive rod lock such that the drive rods of the second drive rod lock are displaced with a time offset.

11. Locking system according to one of claims 1 to 10, wherein the nut switch (26) is designed as a contact or contactless switch arranged in the effective area, e.g. in the rotation area, of the lock nut (25).

12. Locking system according to one of claims 1 to 11, wherein the lock nut (25), e.g., a nut arm (25a) of the lock nut (25), presses or activates the nut switch (26) in the initial position of the lock nut (25) and releases or deactivates it upon actuation of the lock nut (25) during rotation, thereby switching.

13. Locking system according to one of claims 1 to 12, with a tappet contact unit (31) for power transmission from a frame-side power supply (32) to the drives (15, 16) arranged in or on the door leaf (2), wherein the tappet contact unit (31) is arranged on the bearing-side end face of the door leaf (2), e.g. above or below the second espagnolette lock (8).

14. Locking system according to claim 13, wherein the plunger contact unit has, for example, one or more contact plungers (34) on the door leaf side and, for example, one or more contact surfaces (36) on the frame side, wherein the contact plungers can be contacted with the contact surfaces when the door is closed, wherein one or more start-up ramps (27) are preferably assigned to the contact surfaces (36), for example arranged upstream, so that the contact plungers are guided along the start-up ramps during the closing of the door before they touch the contact surfaces.

15. Pivot door with a door leaf (2) that is rotatable about a rotation axis (3) located within the door leaf (2), wherein the, for example, vertical rotation axis (3) divides the door leaf (2) into a first section (2a) associated with an actuation side (B) and a second section (2b) associated with a bearing side (L) opposite the actuation side (B), and a locking system (6) arranged on the door leaf (2) according to one of claims 1 to 14.

16. A method for operating a locking system according to one of claims 1 to 14 or for operating a pivot door according to claim 15, wherein by actuating the nut switch both the first drive of the first espagnolette lock and the second drive of the second espagnolette lock are controlled for unlocking.

17. The method according to claim 16, wherein the first drive and the second drive control the locking elements of the espagnolette locks in such a way that the unlocking of the first espagnolette lock and the second espagnolette lock takes place with a time delay, in that the locking elements of the second espagnolette lock are preferably retracted with a time lead compared to the locking elements of the first espagnolette lock.

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