EP1292747B1 - Self-locking latch and a locking system equipped with said latch - Google Patents

Abstract

A self-latching lock ( 1 ) having a bolt ( 2 ), a catch ( 3 ), an auxiliary catch pin ( 4 ) and a reciprocator ( 5 ) includes a multi-part latch nut ( 6 ) that permits the deactivation of an nut-idling device ( 8 ) and thereby a temporary activation of the function of door handles preferably by electrically operated remote-controlled actuation. The latch nut ( 6 ) comprises an outer nut body ( 60 ) with two arms ( 61, 62 ) for operating the catch ( 3 ) and the bolt ( 2 ), respectively, as well as two hubs ( 63, 64 ) each connected with a square section of the outer and the inner door handle and coaxially and rotatably positioned parallel to each other inside the outer nut body ( 60 ). The nut-idling device ( 8 ) arranged between the hubs ( 63, 64 ) and the outer nut body ( 60 ) constitutes a coupling which by means of actuators ( 71, 72 ) permits disengagement for each hub ( 63, 54 ).

Description

The invention relates to a self-locking lock.

A number of self-locking locks are known in the art. So describes z. As the German Utility Model 298 12 665.6 a self-locking lock, in which excludes the pivoting of the door leaf in the Türfalz the bolt, which is biased in the open position of the door by an elastic element in the closed position without key operation. This is caused on the one hand by the insertion of an auxiliary latch on the striking plate edge and on the other hand by the occurrence of the trap in the strike plate, d. H. in this special self-locking lock, the latch closes only after the latch has fallen into the strike plate, thereby preventing premature locking, which could result in damage to the door frame, etc.

This or similar self-locking locks are preferred because of their high burglar resistance in exterior doors of buildings, apartment doors or hotel rooms used. These usually have no door handle on the outside of the door, and the doors can z. B. alone by mere pulling or pressing so closed that they can not be opened again from the outside without the use of a key.

On the other hand, especially in the hotel sector, but also in office buildings, industrial plants, etc. increasingly come centrally controlled and monitored, z. T. computer-controlled locking systems used. By means of sensors arranged in the locks, in the doors or in the door frame as well as via corresponding transmission lines or by wireless remote transmission, the closing state of all connected to the control center of the locking system doors can be centrally monitored, and in the same way it is also possible by means of in the Locks, doors or door frames of remotely controllable devices to change the closing state of the doors, d. H. To bring the doors from unlocked to locked state and vice versa from locked to unlocked state.

The well-known self-locking locks, which are very well suited due to their high burglar resistance for various types of exterior doors, front doors, hotel room doors, etc., however, have proven to be relatively unsuitable in combination with the known central locking systems for the following reasons: In the currently used Locking systems z. B. for hotel room doors the lock cylinder openings of the locks are usually hidden from the outside, d. H. The doors can not be opened from the outside, because no pusher is present, by mere manual operation. The door opening is therefore z. B. via magnetic cards in conjunction with the known arranged in the strike plate and the case releasing door openers. An application of the known, self-locking locks described above is not useful in these known locking systems, because of the outside of the door whose tumbler can be unlocked only on the case. Without a handle on the outside of the door and through the concealed lock cylinder opening, it is not possible to reopen an excluded self-locking lock from the outside.

Therefore, so far in the known locking systems only locks without self-locking used, whereby the burglar resistance is very limited, however, because the guard locking a door closed from the outside is done only on the case.

Although z. B. from DE-197 38 938 A1 also locks with electric motor remote-controlled bars become known. However, these locks are technically complicated and expensive, and therefore has not yet been used in locking systems. The electric motors which are strong enough for the locking movement alone require a lot of space in the lock, so that the production of such locks in the current standard dimensions at reasonable costs is not possible.

Another way to use self-locking locks in the known locking systems is seen in the additional arrangement of a remote-controlled self-locking lock. With this self-locking lock an exclusion of the bolt can be prevented if necessary, for. B. in the case when the door is closed from the outside, so that the locking of the door as in locks without Selbstriegelungsfunktion only about the case, and the door can be opened in a known manner by means of magnetic card and door opener from the outside.

However, this solution makes little sense, because the high burglar resistance of the self-locking locks is not used when the door was closed from the outside when leaving the room.

In DE-C-685 943 a latch lock is described, the pusher of the trap moving nut can be decoupled. This is done by a arranged outside the pusher closure device which moves a arranged in the body of the nut coupling bolt by the outer end of the coupling bolt is provided with a crank loop, which engages a mounted on the inner end of the lock cylinder of a cylinder lock crank pin.

Also, this solution is not suitable for common locking systems in which a manual operation of the lock from the outside is not possible through the concealed lock cylinder opening.

Finally, the European patent application EP-A-06 70 404 describes a self-locking end with a perpendicular to the nut axis in two halves divided nut and a clutch mechanism that can be actuated electromagnetically. While the inner half of the nut is constantly connected to the bolt, so that by pressing the inner handle of the advanced bolt can be withdrawn at any time, the outer half of the nut is only after activation of the coupling with the bolt in connection. Also, this lock is only suitable for locking systems, which have on the outside of the door a pusher. In addition, a lot of space and energy is required for the electromagnetically actuated clutch.

The invention is therefore based on the object to extend the remote operability of self-locking locks with simple means so that they can develop their burglar-resistant function in full measure in the known modern locking systems under economic conditions. Furthermore, it is an object of the invention to reduce the installation complexity in the construction of locking systems with central control.

The object is achieved by the characterizing features of claim 1.

Advantageous embodiments of the invention form the characteristics of the claims 2 to 12.

Figur 1

zeigt den inneren Aufbau eines erfindungsgemäßen selbstverriegelnden Schlosses als teilweise geschnittene Seitenansicht bei abgenommener Schlossdecke, bei welchem mit einer Nussleerlaufeinrichtung sowie einem über einen Zahnradsegmenthebel angetriebenes Generatormodul zur Vor-Ort-Erzeugung der Energie, die für die Betätigung elektrischer Bauelemente im Schloss erforderlich ist;

Figur 2

ist eine detaillierte Darstellung der für ein erfindungsgemäßes Schloss nach Figur 2 erforderlichen Nussleerlaufeinrichtung;

Figur 2a

ist eine Seitenansicht der in Figur 2 in Draufsicht dargestellten Aktoren;

Figur 3

zeigt das Schema eines unter Verwendung von erfindungsgemäßen Schlössern aufgebauten Schließsystems mit zentraler Steuerung.

The invention will be explained in more detail below with reference to a preferred embodiment of the invention in conjunction with Figures 1 to 3.

FIG. 1

shows the internal structure of a self-locking lock according to the invention as a partially sectioned side view with the lock cover removed, in which with a Nussleerlaufeinrichtung and a driven via a gear segment lever generator module for on-site generation of energy required for the actuation of electrical components in the lock;

FIG. 2

is a detailed illustration of the Nussleerlaufeinrichtung required for a lock according to the invention according to Figure 2;

FIG. 2a

is a side view of the actuators shown in Figure 2 in plan view;

FIG. 3

shows the scheme of a built using locks invention locking system with central control.

In Figures 1 and 2, an embodiment of the invention is shown. In this embodiment, the decommissioning of the nut function is performed by a Nussleerlaufeinrichtung. That is, in this embodiment, a remotely operable idler coupling ensures that the movement of the pusher or pushers on the outside and / or inside of the door can not be transferred to the nut in cases where the door is to remain in the closed position. In the embodiment shown in Figures 1 and 2, the nut to ensure this idle function, as shown in Figure 2 is even better recognizable, an outer nut body 60, which each has an arm 61, 62 for actuating the latch 3 and the bolt 2. Inside the outer nut body 60, the two mandrel connecting bodies 63, 64 are rotatably arranged coaxially and parallel to one another for the mandrels of the outer and inner pressers. As FIG. 2 shows, a spring-loaded driver pin 65, 66 with a rounded end face projects radially outwards into recesses in the outer nut body 60 as peripheral webs 67, 68 of approximately 50 ° each from the periphery of each female connector body 63, 64 Angled length are molded. The entrainment pins 65, 66 are not actuated pusher shortly before - seen in the direction of movement of the mandrel connecting body 63, 64 - ends of the peripheral webs. The ends of the peripheral tracks 67, 68 are formed as stops 69, 70 for the side surfaces of the protruding cam pins 65, 66. Upon actuation of the respective pusher proposes after a short idle the conductive surface of the protruding driver pin 65, 66 on the stop 69, 70 and takes the outer nut body 60 with. By this movement of the outer nut body 60 and connected to the nut body arms 61, 62, the latch 3 and the latch 2 of the self-locking lock 1 according to the invention are withdrawn.

In order to prevent the case 3 and the bolt 2 from being pulled back when the pushers are actuated by persons who are not authorized to enter, in the embodiment shown in FIGS. 1, 2 and 2a the idling function between pusher and nut is achieved in such a way that actuators can be actuated electrically by remote control 71, 72 in the rest position of the pusher existing gap between the drive pins 65, 66 and the stops 69, 70 are pivoted. The actuators 71, 72 are arranged on a plate on the outer periphery of the outer nut body. For a better understanding of the function, the two actuators 71, 72 arranged on the plate 73, which are recognizable in FIG. 2 in plan view, are shown in side view in FIG. 2a, the horizontal position of the actuators being the position causing the idling, which is shown in FIG 2 is shown.

By the pivoting of the respective actuator 71, 72 in the present in the rest position of the pusher gap between driving pin 65, 66 and stop 69, 70, the rounded end face of the driving pin 65, 66 by the present at the front of the actuator 71, 72 bevel against the Pushed back effect of the compression spring so far that upon further rotation of the respective Domanschlußkörpers 63, 64, the end face of the driving pin 65, 66 under the inner periphery of the outer nut body 60 and thus the side surface of the respective driving pin 65, 66 not against the respective stop 69th , 70, and thereby the movement of the respective male terminal body 63, 64 is not transmitted to the outer nut body 60. Thus, by the pivoting of the respective actuator 71, 72 an idling function between the associated pusher and the outer nut body 60 is achieved, whereby a retraction of the latch 3 and the bolt 2 is prevented. That is, despite pressing the pusher, the door can not be opened. However, authorized users may, for example, Example, by means of magnetic card, the respective actuators 71, 72 swing out of the spaces between the driving pins 65, 66 and the stops 69, 70 and so disable the idle function, so that the door can be opened.

The embodiment of the lock 1 of Figure 1 according to the invention also advantageously has a permanently coupled to the mandrel connecting bodies 63, 64 Gear segment lever 74, wherein the teeth of the gear segment with a pinion of a drive gear of a terminal arranged generator 75 are engaged. In each handle operation, no matter whether idle or to actuate the closing elements, energy is generated in the generator 75 via the gear segment lever 74 and stored in a buffer memory, not shown, so that the lock 1 according to the invention in this embodiment of any energy supply from the outside or over Batteries to ensure its electrical functions is independent. Even if, after prolonged non-actuation of the pusher, the buffer no longer contains enough energy to actuate the electrical or electronic components of the circuit, the required energy can be immediately made available again by actuating the pusher.

To ensure the panic function, d. H. To be able to open the door from the inside at any time solely by operating the pusher without a key, magnetic card or the like, the actuator 72 must constantly be in the non-pivoted state, so that the driving pin 66 of the inner mandrel connecting body 64 always abuts the stop 70 of the outer nut body and this can move. However, it is also possible to deliberately override the panic function in certain situations by pivoting the actuator 72 between driving pin 66 and stop 70.

In a further advantageous embodiment of the invention, the lock may additionally be a mechanically and / or electrically driven and z. B. also remotely operated locking device 9 for optional decommissioning of the self-locking function of the self-locking lock 1 own.

In the embodiment described here, the locking device 9 has a detent 21, which engages under the bias of a spring 22 in the open position of the bolt 2 in a recess on the bolt and holds the latch in the open position. The locking device 9 may, for. B. be solved by remote control of a pull or lifting magnet 23 by, as can be seen in Figure 1, by pulling action of the magnet 23, the locking lug 9 is pivoted out of the recess of the bolt.

Due to the possibility of central actuation of the locking devices 9 z. B. in emergencies with simultaneous central deactivation of Nussleerlaufeinrichtungen 8 all doors are kept open from the outside.

In an advantageous embodiment of the invention, it is further provided to arrange at least one movable component of the lock, in particular on the bolt 2 and / or the latch 3 and / or the auxiliary latch 4, a sensor or a plurality of sensors to the instantaneous position of the movable member or To be able to determine several movable components.

The data obtained may be a control center or located in the lock 1 control unit 12, the control of the electrically driven devices, eg. B. the Nussleerlaufeinrichtung 8 or the locking device 9 is used for the self-locking function, be forwarded for further processing. The transmission of the data takes place via lines or without wires. For lineless transmission is a receiving and transmitting unit 13, which may be combined with the control unit 12. The receiving and transmitting unit 13 may be a radio receiving and transmitting unit.

In an advantageous embodiment of the invention, the exclusion of the bolt 2 is additionally dependent on the occurrence of the case 3 in the strike plate. This will prevent premature exclusion of the bolt, which could lead to damage to the door frame or the strike plate, prevented.

In order to reduce the impact noise when excluding the bolt, at least one of the bolt guide elements, d. H. either the bolt guide pin or the rear end of the bolt guide slot comprise an elastic damping member.

Furthermore, the latch guide bolt connected to the lock case can be connected via a bridge element 17 with another connected to the lock case part of the castle or with the lock case itself in order to increase the counter locking force, ie to reinforce the burglar resistance.

FIG. 3 schematically shows the structure of a locking system according to the invention, which is constructed using self-locking locks 1 according to the invention, with a central control device 50.

In the illustrated embodiment, at least all existing doors in the building with the self-locking locks 1 according to the invention are equipped, and constantly locked on the acting on the case Nussleerlaufeinrichtung 8 and the excluded latch 2. A person with access rights can deactivate the nut idler 8 via a code reader 54 located next to the door (in the illustration according to FIG. 3, such a code reader 54 is shown only next to the main entrance door) and the central controller 50 deactivates the nut idler 8 so that the authorized user actuates the outer handle Trap 3 and the release lever 15, the bolt 2 can retract. The input via the code reader releases the nut idler 8 only for one opening. When the door is closed again, the nut idling device 8 and the self-locking latch 2, controlled by the central control unit, immediately come back into operation, so that the building is protected against burglary in previously unattainable manner.

In the illustrated embodiment, the code reader 54 is connected to the central control unit 50 by a line, while the return signal is transmitted from the central control unit to the lock of the main entrance door via a wireless connection 52. The compounds can of course also in other ways, eg. B. be realized exclusively without wires.

The central control device 50 is programmed or manually controlled via the operating unit 55, which is likewise coupled via lines 51 or line-free connections 52 to the central control device 50.

The invention also makes it possible to use self-locking locks in a modern locking system in a simple manner, as a result of which the burglar resistance of buildings secured by centrally controlled locking systems can be considerably improved.

In addition, it is possible to save the previously used door openers, which are arranged in the strike plate or in the door frame and offer little security, including their relatively complicated installation.

Claims (12)

1. A self-latching lock (1) comprising a bolt (2), a catch (3), an auxiliary catch pin (4) and a reciprocator (5), in which the bolt (2) that can be operated via a latch nut (6) or a closing thruster is preloaded, when a door is open, by an elastic element (7) for a locking action and, when a door leaf is engaged in a door rabbet, is released into its locking position by an action of at least the auxiliary catch pin (4), the latch nut is multiparted and comprises a nut-idling device (8) which can be deactivated especially by an electrically operated remote-controlled actuation and thereby temporarilly activat the function of the door handles, whereby the latch nut (6) comprises an outer nut body (60) with two arms (61, 62) for operating the catch (3) and the bolt (2), respectively, as well as two hubs (63, 64), coaxially and rotatably positioned parallel to each other inside the outer nut body (60), characterized in that
   the nut-idling device (8) constitutes a deactivable coupling between the hubs (63, 64) and the outer nut body (60) and that
   the coupling between the hubs (63, 64) and the outer nut body (60) includes in each hub a carrier pin (65, 66) with a rounded end, radially protruding outward in spring-loaded fashion from the hub into a respective recesse (67, 68) formed into the perimeter of the outer nut body (60) as a track by an angle of about 50° and extending close to a respective one of stop-shaped ends (69, 70) of the recessed track (67, 68), whereby the coupling is deactivated by engagement of actuators (71, 72), with a sloped front side opposite the rounded end of the carrier pin, in a respective interstitial space between the stops (69, 70) and the carrier pins (65, 66) that pushes the carrier pins back into the hub (63, 64) when the hub is moved.
2. A self-latching lock (1) as in claim 1, characterized by a segment lever (74) that is permanently coupled to the hubs (63, 64) for driving an electric generator mounted inside the lock (1).
3. A self-latching lock (1) as in claim 1 or 2, characterized in that at least for one of the movable members of the lock, especially for the bolt (2), and/or the catch (3) and/or the auxiliary catch pin (4) at least one sensor (10, 11) is provided for detecting its actual position.
4. A self-latching lock (1) as in any of the preceding claims, characterized in that the lock (1) incorporates at least one control unit (12) for controlling the electrically operated elements by utilization of the signals captured by the sensor(s) (10, 11) and of instructions sent to the control unit (12) from outside the lock.
5. A self-latching lock (1) as in claim 4, characterized in that the control unit (12) is connected to a transceiver (13) inside the lock for the purpose of receiving and forwarding wirelessly transmitted signals.
6. A self-latching lock (1) as in claim 5, characterized in that the transceiver unit (13) is a radio transceiver.
7. A self-latching lock (1) as in any of the preceding claims, characterized in that the lock-out extension of the bolt (2) is additionally dependent on the entry of the catch (3) in the striker plate.
8. A self-latching lock (1) as in any of the preceding claims, characterized in that at least one bolt guide element comprises a resilient member in the stopping area of the bolt for damping the noise of the bolt.
9. A self-latching lock (1) as in any of the preceding claims, characterized in that at least one bolt guide element connected to a lock case is linked via a bridge element (17) to another lock segment that is connected to the lock case, or is linked to the lock case itself.
10. A self-latching lock (1) as in any of the preceding claims, characterized in that the bolt (2) is provided with an inhibitor (9) serving to temporarily disable the self-latching function.
11. A self-latching lock (1) as in claim 10, characterized in that the inhibitor (9) is operated by at least one of mechanical and electrical means and remotely controllable.
12. A self-latching lock (1) as in any of the preceding claims, characterized in that the lock is connected via hardwired lines (51) and/or wireless links (52) to a central control system (50) and to other, additional locks on lockable openings of a building.

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