EP2166180B1 - Locking device - Google Patents

Description

• zumindest einem Zentralschloss mit Schlossfalle und/oder Zentralriegel,
• zumindest einer selbstverriegelnden Zusatzverriegelung, welche zumindest ein Verriegelungselement aufweist, das bei in Schließstellung gelangendem Türflügel selbsttätig aus einer Entriegelungsstellung in eine Verriegelungsstellung überführt wird,
• zumindest einer entlang einer Betätigungsrichtung (hin- und her-)verschiebbaren Treibstange, die das Zentralschloss mit der Zusatzverriegelung verbindet, sodass die Zusatzverriegelung über das Zentralschloss betätigbar ist,
• zumindest einem Motoraggregat, welches zumindest einen Motor, eine Motorsteuerung und ein von dem Motor angetriebenes Betätigungselement für die Treibstange aufweist,

wobei das Verriegelungselement der Zusatzverriegelung mit dem Motoraggregat aus der Verriegelungsstellung in die Entriegelungsstellung überführbar ist. Betätigungselement meint im Rahmen der Erfindung insbesondere eine Zahnstange, welche in dem Motoraggregat entlang der Betätigungsrichtung verschiebbar geführt ist und zum Beispiel mit einem Mitnehmemocken in eine korrespondierende Ausnehmung der Treibstange eingreift. Eine solche Zahnstange wird in der Regel von dem Motor über ein Getriebe, zum Beispiel über das Letztrad dieses Getriebes verschoben. Selbstverriegelnde Zusatzverriegelung meint im Rahmen der Erfindung eine "mechanisch" und folglich nicht elektromotorisch selbstverriegelnde Zusatzverriegelung, bei welcher ein Verriegelungselement, zum Beispiel eine Riegelfalle oder dergleichen mechanisch, zum Beispiel über die Kraft einer Feder, selbsttätig in die Verriegelungsstellung überführt wird, wenn der Türflügel in die Schließstellung gelangt. Die Auslösung für eine solche Selbstverriegelung kann dabei beispielsweise magnetisch mittels eines Auslösemagneten erfolgen, welcher zum Beispiel im Bereich einer türrahmenseitigen Schließleiste angeordnet ist.The invention relates to a locking system with multiple locking, with

• at least one central lock with latch and / or central latch,
• at least one self-locking additional lock, which has at least one locking element, which is automatically transferred from an unlocking position into a locking position when the door leaf is in the closed position,
• at least one actuating rod (which can be displaced back and forth) along an actuation direction, which connects the central lock to the additional latch, so that the additional latch can be actuated via the central lock,
• at least one engine assembly having at least a motor, a motor controller, and a drive element for the drive rod driven by the motor,

wherein the locking element of the additional locking with the motor assembly from the locking position into the unlocking position can be transferred. Actuator means in the context of the invention, in particular a rack, which is guided displaceably in the motor assembly along the actuating direction and engages, for example, with a driving cam in a corresponding recess of the drive rod. Such a rack is usually moved by the engine via a transmission, for example via the last wheel of this transmission. Self-locking additional locking means in the context of the invention, a "mechanical" and consequently non-motorized self-locking additional locking in which a locking element, such as a latch bolt or the like mechanically, for example, via the force of a spring, is automatically transferred to the locking position when the door reaches the closed position. The triggering for such a self-locking can be done for example magnetically by means of a release magnet, which is arranged for example in the region of a door frame-side closing strip.

From practice one knows a locking system with self-locking additional locking without motor drive, in which the latch bolts of the two additional locks are automatically and thus automatically extended when the door is closed. The latch bolts are secured against "external" pushing back. Using the door handle, both the latch of the central lock and the latch bolts of the additional locks can be retracted. In practice, such a door handle is usually arranged only inside the door, while on the outside of the door is often dispensed with a door handle.

In addition, one knows from the practice fully motorized motorized locks, in which both the locking and the unlocking via an electric motor drive unit. The "self-locking" of the additional locking is realized in such embodiments consequently electric motor. Such a fully motor-driven locking system is for example from the DE 103 08 243 A1 and DE 103 08 263 B4 known.

Finally, one knows from practice semi-motor driven motor locks of the type described above, in which the additional bolt - as already described - are moved mechanically, for example via spring forces in the locking direction and in which a motor unit provided is to transfer the additional latch from the locking position to the unlocked position, but not from the unlocked position into the locking position. The invention is concerned with such a "semi-motor" driven engine lock. In the currently known "semi-motor" driven engine locks drives an electric motor via a gear on a designed as a rack actuator, the motor always drives the rack in the mechanical stop on block. These end positions are detected by the motor control via the increase and reaching of the maximum current consumption. Such an operation is associated with a high load and consequently a high wear of the components used, since the motors and the over-controlled mechanical gear drive with maximum power in each end of the door with each motorized door operation. In addition, the known procedure in connection with the control of electric Drehtorantrieben is disadvantageous. Because such locking systems are often used in conjunction with electric Drehtorantrieben or revolving door drives, which consequently open after unlocking the door electric motor. In the embodiment known from practice there is the danger that with mechanically blocked drive rod, for example, after mechanical locking via the central bolt, an opening pulse for the motor drive is misinterpreted, since the controller assumes in the motor drive due to the rising current consumption, the open end position would be reached. This can lead to a switching signal for the swing gate operator being delivered. But since all locking elements are still extended, the swing gate operator would press with its full pivoting force against these locks, which is disadvantageous due to the burden.

The invention has for its object to provide a locking system with semi-motor multi-point locking, which is simple and inexpensive is also constructed using known components and ensures reliable and trouble-free operation.

To solve this problem, the invention teaches in a generic locking system with multiple locking of the type described above that the motor unit has at least one connected to the engine control sensor, which interrogates a position of the actuating element, for example, the rack.

The invention is initially based on the recognition that it can be dispensed with driving the electromotive drive in the course of unlocking to block when one or more sensors are provided to query the corresponding functional positions. However, it is of particular importance that not the position of the drive rod itself is queried directly, but the position of the actuating element within the engine control and thus, for example, the position of the rack, which operates via a driver on the drive rod. In the context of the invention is thus ensured that the drive rod, for example in the course of mechanical self-locking, can move without this affecting the position sensing and consequently the motor drive. Because in the context of the invention should be ensured that the drive rack can move independently of the drive rod.

Basically, it is possible to realize the position query of the rack by querying the motor revolutions by, for example, an incremental angle encoder on the motor shaft. Alternatively, it is also possible to query the rack position directly by two limit switches in the gearbox of the motor drive.

According to a particularly preferred embodiment, the invention proposes, however, that the sensor or the sensors of a movable guided with the actuating element trigger element, for example, tripping, is triggered /, wherein the trigger element via a coupling element with the actuating element, for example, the rack, connected is. Such a coupling element is preferably designed as a strip-shaped or rod-shaped coupling element, for example as a coupling strip, for example, coupling sheet strips.

In this context, the invention is based on the recognition that the motor unit has a motor housing which in a conventional manner on the one hand a control area with at least the motor control and consequently the control electronics and on the other hand one of them spatially separated and sealed against this drive area with, for example, the transmission and at least the actuating element, for example the rack. The invention has now recognized that the sensor or the sensors can be arranged in the control region of the motor housing and that these sensors can nevertheless "directly" interrogate the exact position of the rack when the triggering of the sensors via, for example, a release carriage with interposition the coupling element described is done. The coupling element, for example the coupling sheet strip, thus connects the trigger element, for example the release carriage, which operates on the sensor, with the actuating element, for example the actuating rack. For this purpose, the strip-shaped coupling element on the one hand have a recess, in which engages a pin of the trigger element and on the other hand have a recess, in which engages directly the driver, for example, drive cam of the rack. The displacement of the rack via the motor drive leads directly to a displacement of the coupling element and consequently also to a displacement of the triggering element, so that at a considerable distance Sensors arranged by the rack reliably reproduce the position of the rack.

The sensors can be designed in a manner known per se as magnetic sensors, for example Hall sensors, wherein the triggering element then has a triggering magnet, which is positioned, for example, on a release carriage. However, the invention also includes embodiments with sensors of other types, for example optical sensors.

The embodiment with the coupling element described, for example, coupling sheet strips, has the advantage that can be used in practice on known components and in particular known drive units. Thus, in a known drive unit for a fully motorized lock solution, for example, a pin of a release carriage engages in a corresponding recess of the drive rod, so that in such a fully motorized solution by the positive connection of the magnetic carriage with the drive rod of the magnet carriage is entrained in each espagnolette movement, regardless whether the movement is effected mechanically or by electric motor. In the context of the invention can now be used without major structural changes to such an electric motor drive unit by dispense with the positive engagement of the pin of the magnetic carriage in the drive rod and instead the magnetic carriage is coupled via the coupling element to the rack. The design as a coupling sheet strip, for example, spring strip strips of a thickness of less than 1 mm, for example less than 0.5 mm, preferably only about 0.2 mm allows the accommodation of this metal strip in a conventional structure between the rack and drive rod.

To ensure proper operation, the invention proposes that the drive rod in the region of the trigger element, for example, the magnetic carriage has a sufficiently large clearance, for example, a recess, so that the magnetic carriage is not moved in the course of actuation of the drive rod and vice versa. In addition, the invention proposes that the recess in the drive rod, in which the driver, for example, driving cam of the rack engages, is provided in one direction with a clearance, which allows a displacement of the drive rod in the course of the automatic locking of the additional lock, without that the actuating element is moved.

According to a further proposal of the invention it is provided that the engine assembly for querying different positions of the actuating element has at least two sensors, which are preferably triggered by a single triggering element, for example a single release carriage. Thus, two sensors spaced apart from one another may preferably be arranged in the control region of the motor housing, one sensor representing the position "OPEN" and the other sensor representing the position "CLOSED". In the basic position, the rack and thus also the release carriage are in the "CLOSED" position. The door is in the closed position so that the self-locking additional latches are extended and thus locked. If the motor control now receives an opening pulse, the drive moves the rack up to the "OPEN" position. The drive rod is moved over the driver, so that the additional locks are retracted. When the rack reaches the "OPEN" position, the corresponding sensor responds and the motor drive stops. The door can now be opened, but the control ensures that the motor moves the rack back to the "closed" position. About the already described clearance in the drive rod is now guaranteed that the drive rod in a renewed closing of the door in the course of a Self-locking can be moved without the driver blocked this.

Furthermore, the invention proposes that the engine assembly has a door position sensor, which is also connected to the engine control and queries the position of the door leaf. It may be a reed switch, for example. This can also be connected to an alarm system.

Overall, a locking system is created in the context of the invention, which is characterized by proper operation in a simple and compact design. Structurally, known components can be used. The construction is durable and durable, as the engines are no longer constantly on block drive, but are properly controlled by sensors. These sensors are preferably housed in a protected against greasing and contamination area of the motor drive, preferably directly in the encapsulated control area or board area, so that high interference immunity against contamination is guaranteed. This succeeds in particular by the invention essential coupling element in the form of a spring steel strip. The locking system according to the invention can be easily and reliably combine with swing gates drives without the problems described above occur.

The opening pulse for the motor unit can be issued or generated by a user in a variety of ways. Thus, switches or buttons can be arranged in the door area. The triggering can also take place via a remote control, for example radio remote control and / or an access control system.

Fig. 1

eine erfindungsgemäße Schließanlage mit Mehrfachver-riegelung (Treibstangenschloss) in einer vereinfachten Seitenansicht,

Fig. 2a, 2b

eine Zusatzverriegelung des Gegenstandes nach Fig. 1 in zwei verschiedenen Funktionsstellungen,

Fig. 3a bis 3d

einen Ausschnitt aus dem Gegenstand nach Fig. 1 in verschiedenen Funktionsstellungen und

Fig. 4

einen Ausschnitt aus dem Gegenstand nach Fig. 1 in einer perspektivischen Darstellung mit "abgenommener" Treibstange und Kupplungselement.

In the following the invention will be explained in more detail with reference to drawings showing only one exemplary embodiment. Show it

Fig. 1

an inventive locking system with Mehrfachver-locking (espagnolette lock) in a simplified side view,

Fig. 2a, 2b

an additional locking of the object after Fig. 1 in two different functional positions,

Fig. 3a to 3d

a section of the object after Fig. 1 in different functional positions and

Fig. 4

a section of the object after Fig. 1 in a perspective view with "removed" drive rod and coupling element.

In the figures, a locking system with multiple locking and thus a drive rod lock is shown, which has a central lock 1 and additional locks 2 in its basic structure. Of the usually provided in practice two additional latches only the lower auxiliary latch 2 is shown in the figures. Central lock 1 on the one hand and additional locks 2 on the other hand are on the back of a (common) lock plate 3 attached. The central lock has a handle-operable and optionally key-operated latch 4 and a key-operated central latch 5, for example, which is also referred to as a center latch.

The additional latches 2 are designed as (mechanically) self-locking additional latches and each have at least one locking element for this purpose 6, which is formed in the embodiment as a latch bolt and is automatically transferred in the closed position reaching door leaf from an unlocked position into a locking position. Further displaceable drive rods 7 are provided along an actuating direction B, which connect the central lock 1 with the additional latches 2, so that the additional latches 2 can be actuated via the central lock 1. To the self-locking operation of the additional lock 2 to realize, it is provided that the lock chain 8 is held by a locking element 9, for example locking pin, first in the unlocked position and that in or on one of the additional lock 2 associated door frame-side locking bar a release magnet M is arranged. This closing strip side release magnet M works for automatic locking or for automatic release of the latch bolt 6 on the lock element 9, which then releases the lock chain 8, so that the locking element is automatically transferred to the locking position, due to its own gravity and / or due to the force a locking spring 10. The coupling between lock chain 8 and latch bolt 6 via an intermediate lever 11, which is designed as pivotable about an axis on the lock housing hinged pivot lever. In the exemplary embodiment, this intermediate lever 11 is L-shaped. Structure and operation of such a self-locking additional locking are known in practice.

The locking system is further equipped with a motor unit 12, which has at least one motor 14, an engine controller 13, a transmission 15 and a driven by the motor 14 with the interposition of the transmission 15 actuator 17. The motor unit thus operates on the actuator 17 also on the drive rod 7. For this purpose, the actuator 17 is designed as a rack 17, which with the last wheel 15 ' the transmission 15 and which has a driver 18 which is formed in the embodiment as a driving cam and engages in a recess 19 of the drive rod 7. The invention relates to a semi-motor driven engine lock, that is, the locking member 6 of the auxiliary lock 2 is indeed transferred from the locking position to the engine assembly 12 in the unlocked position, but not vice versa from the unlocked position in the locked position. Because the locking of the additional locking takes place in the locking system exclusively by way of self-locking when the door reaches the closed position and thus automatically trigger the additional locks. About the lock cylinder of the center lock can then be a "final" lock by blocking the lock chain. In the exemplary embodiment, two motors are used in the motor unit in a conventional manner.

In order to ensure a flawless and low-wear operation of the lock and in particular of the motor unit, the motor unit 12 now within the scope of the invention, two sensors 20a, 20b, which query various positions or functional positions of the rack 17. The sensors 20a, 20b are configured in the embodiment as magnetic Hall sensors, which are triggered by a common trigger element 21, wherein the trigger element is designed in the exemplary embodiment as a slidable along the direction of actuation B guided magnetic release carriage 21. This release carriage 21 is now not directly coupled to the rack 17 in the embodiment shown in the figures and therefore not positioned directly in the rack, but the rack 17 moves the release carriage 21 with the interposition of a coupling element 22, which on the one hand with the release carriage 21 and on the other hand connected to the rack 17. This coupling element 22 is formed in the embodiment as a strip-shaped coupling element, namely as a thin coupling sheet strip.

In particular in Fig. 4 It can be seen that this coupling sheet strip 22 on the one hand has a recess 23, in which the driving cam 18 of the rack 17 engages and on the other hand, a recess 24, in which engages a connected to the magnetic carriage 21 pin 25. The coupling plate 22 is arranged to save space just below the drive rod. This embedding between the two surrounding components, the spring band is also perfectly secured against buckling.

In this way, within the scope of the invention, the sensors 20a, 20b can reliably detect the position of the toothed rack 17 without the sensors themselves having to be arranged in the immediate vicinity of the toothed rack 17. This is advantageous in particular because the motor unit 12 has a motor housing 26, which on the one hand has a control area 26a in which the motor control and consequently the electronic components are arranged and, on the other hand, a drive area or transmission area 26b which contains the mechanical components and in particular the gearbox and pick up the rack. With the aid of the coupling sheet strip 22 according to the invention, it is now possible to arrange the sensors 20a, 20b in the control region 26a, although the component to be interrogated, namely the rack 17, is positioned in the drive region. This embodiment is particularly useful because the sensors work directly with the control electronics. In addition, contamination of the sensors are reliably avoided.

Finally, it is shown in the figures that the engine unit 12 is additionally equipped with a door position sensor 27 which is formed in the embodiment as a reed switch and a query of the position of the door allows, that is, it can be determined whether the door in the Closed position or in an open position.

The operation of the locking system according to the invention results in particular by means of a comparative consideration of Fig. 3a to 3d which show the opening of the additional latch 2 and consequently the retraction of the latch bolt 6 via the motor unit 12. In each case, only a part of the locking system is shown and for reasons of clarity, a representation was selected with the faceplate 3 engine assembly 12 disassembled. The starting point is a functional position in which the door is in the closed position ( Fig. 3a ). Due to the self-locking design of the additional locking the latch bolt 6 are extended in this functional position. If the locking system has not been locked on the lock cylinder, it is now possible in principle to retract the additional bolt 6 by handle operation and possibly key operation. In addition, the invention now allows the electromotive opening of the door in a simple and functional way. For this purpose, an opening pulse is given to the motor controller 13 of the motor unit 12.

Such an opening pulse can be delivered in a variety of ways, for example via a button, an access control system or the like. Details are not shown.

As soon as the engine control unit 13 receives a corresponding opening command, the motors 14 move the drive rack 17 along the direction of actuation B, in the opening direction R (cf. Fig. 3b ). The drive rod 7 is forcibly transported, whereby the latch bolt 6 of the additional locking 2 and the latch 4 of the central lock 1 are recovered. At the same time in the course of this opening movement, the spring band coupling 22 is also displaced in the opening direction R, so that also connected to the spring band coupling 22 carriage 21 is guided in the opening direction. Once this magnetic carriage 21 now the "OPEN" sensor 20a has reached, the engine controller 13 stops the motors 14 (see. Fig. 3c ). It is therefore not necessary to drive the motors against an end stop, but succeeds by the sensor query a gentle operation. In this position, all locking elements and the latch are now fully retracted. The door can now be swung open.

As soon as the door leaf is swiveled open, this is detected by the motor control 13 via the door position sensor 27, since it leaves the effective area of the contact magnet (not shown) mounted on the frame side. Then now the motor control via the motors 14 drives the drive rack 17 immediately back until the magnet carriage 21 has reached the "TO" sensor 20b (see. Fig. 3d ). There, the motor controller 13 switches off the motors 14 again. This retraction of the rack now makes it possible for the drive rod to be located and move in the entire movement range between "OPEN" and "CLOSE", depending on the mechanical actuation state (push-button pressed: yes / no, change via PZ actuated: yes / no). In particular, it is ensured that despite the motor control at a later closing of the door again an automatic locking of the additional lock 2 can take place. This succeeds in particular also because the recess 19 in the drive rod, in which the driver 18 of the rack 17 engages, is provided on one side with a clearance which allows a displacement of the drive rod in the course of the automatic locking of the additional lock in the closing direction S, without the rack is moved with.

Claims (10)

1. A lock system with multipoint locking, with

   - at least one central lock (1) with lock latch (4) and/or main bolt (5),

   - at least one self-locking additional locking device (2), which has at least one locking element (6), which is transferred from a release position to a locking position automatically in the case of a door wing reaching a closed position,

   - at least one operating rod (7) which can be displaced along an actuation direction (B) and which connects the central lock (1) to the additional locking device (2), so that the additional locking device (2) can be actuated by means of the central lock (1),

   - at least one motor unit (12) which has at least one motor (14), a motor control (13) and an actuating element (17) for the operating rod (7), which is driven by the motor (14),

   wherein the locking element (6) of the additional locking device (2) can be transferred using the motor unit (12) from the locking position into the release position,
   characterised in that
   the motor unit (12) has at least one sensor (20a, 20b) connected to the motor control (13), which queries at least one position of the actuating element (17).
2. The locking system according to Claim 1, characterised in that the actuating element (17) is constructed as a toothed rack, which can be displaced along the actuation direction (B) of the operating rod (7), and has a driver (18) for the operating rod (7), wherein the driver (18) preferably engages as driver cam in a corresponding recess (19) of the operating rod.
3. The locking system according to Claim 1 or 2, characterised in that the sensor or the sensors (20a, 20b) is/are triggered by at least one trigger element (21), for example trigger slide, guided movably with the actuating element (17).
4. The locking system according to Claim 3, characterised in that the trigger element (21) is connected via a coupling element (22) to the actuating element (17).
5. The locking system according to Claim 4, characterised in that the coupling element (22) is constructed as a strip-shaped or rod-shaped coupling element, for example as a coupling strip.
6. The locking system according to one of Claims 1 to 5, wherein the motor unit (12) has a motor housing (26) which has a control region (26a) with at least the motor control and a drive region (26b) with at least the actuating element (17), which is preferably spatially separated therefrom, characterised in that the sensor or the sensors (20a, 20b) are arranged in the control region (26b).
7. The locking system according to one of Claims 1 to 6, characterised in that the motor unit (12) has at least two sensors (20a, 20b) for querying various positions of the actuating element (17).
8. The locking system according to one of Claims 1 to 7, characterised in that the recess (19) of the operating rod (7) is provided with free travel in an actuation direction, which allows a displacement of the operating rod (7) in the course of the automatic locking of the additional locking device, without the actuating element (17) being displaced.
9. The locking system according to one of Claims 1 to 8, characterised in that the motor unit (12) has a door position sensor (27) which is connected to the motor control.
10. The locking system according to one of Claims 1 to 9, characterised in that the sensor or the sensors is/are constructed magnetic sensor/sensors, for example Hall effect sensors.

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