EP2636825A2 - Locking device and locking system - Google Patents

Abstract

The device (1) has a lock housing (2) and a drive unit, where the lock housing is manually movable between a position in which an operation device (3) is locked, and another position in which the operating device is released. The drive unit is arranged to bring the lock housing from the former position to the latter position. The lock housing includes a battery, where the drive unit brings the lock housing from the former position to the latter position in response to a signal to switch off an electrical power supply.

Description

The invention relates to a locking device and a locking system comprising at least one locking device.

Locking devices for doors and their actuators are widely known in the art. Locking devices prevent actuation of a door and / or an actuator to be operated to open the door or other access control device. In particular, this offers itself to bring a locking element in a position in which it obstructs the path for at least one element of the actuator. In particular, in relation to public buildings in this case far-reaching safety guidelines are to be observed, which dictate the possibility of a rapid evacuation of the building, especially for an emergency. There are several aspects to consider: First, the locking device must be intuitive, ie without the study of a longer manual, by lay people and especially illiterate (children) to be operated. Secondly, a quick unlocking of an emergency exit locking door is necessary to lose as little time as possible in an emergency. For this it is particularly necessary that only a few steps are required to open the escape route. A conflict of objectives results from the fact that many emergency exits should only be passable from the inside to the outside in an emergency, but a normal operating situation of the building requires that passing of the emergency exit for reasons of access control or theft protection is not possible.

Known in the prior art are locking devices which are arranged as a rotatable element under a door handle ("door handle") of an emergency exit and can be rotated by hand from a door handle locking position to a position releasing the door handle. In situations of panic, valuable time can elapse until an operator actually grasps the operating mechanism until the locking device has actually unlocked, in which urgent masses of people can build up a considerable force on the door leaf, which actuation of the locking device or the actuating device of FIG Make it difficult or impossible to door.

It is therefore an object of the present invention to eliminate the disadvantages known from the prior art.

The above object is achieved by a locking device having the features according to claim 1 and a locking system having the features according to claim 9 and a door arrangement according to claim 10. Advantageous developments of the invention are specified in the subclaims.

In the context of the present invention, an actuating device of a door is understood in particular to be a door handle, a pivoting lever, a panic bar or similar actuating elements with which a closed door can be opened. In addition to the aforementioned muscle-actuable actuators, contact elements are also to be understood as an actuation device by which only a signal for opening the door is given to a motor device which opens the door or the door in response to the signal. According to the invention, a locking housing provided which prevents the actuation of the actuator in a normal state ("locked") corresponding to a first position, releases the actuating device of the door in a second position corresponding to an emergency state. In the context of the present invention, a locking housing is understood to mean a large-area structure in which further elements such as, for example, a drive unit, actuating elements, energy stores, electrical circuits and the like can be accommodated. The locking housing is made of an impact-resistant material, on the one hand to withstand the weather, on the other hand to prevent vandalism attacks and cases of abuse and unauthorized opening of the door. In addition to a manual actuation of the locking housing between the first and the second position, the invention provides for the locking housing to be brought from a first position into a second position by a drive unit provided in particular in the locking device. In this case, the drive unit can be designed as varied as the mechanisms or trajectories of possible unlocking operations, and can in particular comprise an electromagnet, a lifting magnet, an electric rotary drive (electric machine) and in principle also piezoelectric actuators. By the device according to the invention has the advantage that the locking housing can not only release the actuator by a concrete manual operation by a user standing directly in front of the door, but also by a mere signaling, for example by pressing a red alarm button, for almost everyone To understand people as intuitively operated emergency release element, can be unlocked.

Advantageously, the locking housing may comprise an energy store, which as an elastic element, as a fluid pressure accumulator (eg. Compressed air), an electrical energy storage or the like can be configured. By providing an energy store, the lock housing can be brought from a locking position to an unlocked position even in the event of a power failure by a minimum of activation energy. Here, the stored energy is used to rotate, for example by means of the drive unit, the locking housing or to pivot or move. This offers the advantage that a user only has to spend a very small or no force at all to operate the locking device according to the invention.

Further advantageously, the locking housing may be attached to the outside of a door, in particular on the outside of a door leaf. On the one hand, even the attachment of such a lock housing can represent an indication that the door is an emergency exit, on the other hand a particularly intuitive operation ensured and represented that the lock housing visibly blocks the actuator and therefore are first placed in a different position got to. In order to mark the door provided with the locking device beyond and also in poor visibility (night, smoke) as an emergency exit, the locking housing may comprise lighting elements, by which the attention of a user is awakened. A popular and therefore particularly suitable embodiment is to produce a locking housing according to the invention made of green, impact-resistant plastic and provided with at least one red light source.

Further advantageously, the locking device may comprise a control unit which is set up to control the drive unit in response to an operation of a second actuating device. These second actuator may be, for example, a button or a push button, which may be arranged in particular in the region of the door provided with the locking device according to the invention. Furthermore, the locking device can be set up to be caused to control the drive unit via a remote-controlled signal, in particular by wire and / or wireless. Thus, either unlocking can be initiated from a central location or be unlocked in response to smoke and / or fire detectors already before the arrival of the first refugees on the door whose actuator. In other words, the drive unit in this case is not necessarily by an escaped person but possibly by supervisors and / or rescue workers o.Ä. remotely controlled and the lock housing moved from a first to a second position. This offers the advantage that in case of panic, for example, no preload acts on the door, before the actuator can be actuated.

Advantageously, in particular to distinguish between a normal actuation attempt and an escape attempt in an emergency, the locking housing be set up to be manually operable only in response to a comparatively high, predefined minimum force. In particular, this can be provided to define such a high force that a user who accidentally wants to operate the lock housing, at the latest on the necessary use of force is informed that this is an emergency exit, which should remain closed for the normal case. This has the advantage that the access control of the building (except for an emergency) is complied with and accidental operations can be avoided.

Further preferably, the locking device comprises an electrical energy store which is set up to supply the drive device with electrical energy. The electrical energy store may, for example, be a battery and / or a capacitor whose energy supplies the drive device with electrical energy in response to the actuation of a signaling device (eg pushbutton, remote control signal) in response to which the lock housing is unlocked Position moves.

Further preferably, the locking device and / or the locking housing may comprise the second actuating device for actuating the drive unit as well as an alarm button. By combining these actuators in the latch housing simplifies the laying of signal and / or power lines and the attachment of controls for the operation of the emergency exit and an alarm. Of course, the aforementioned functions can also be triggered by a single control element, in other words combined in a single control element.

According to another aspect of the present invention, there is provided a locking system comprising at least one locking device as discussed above and a buzzer configured to send signals to the locking device, but not necessarily located close to the locking device have to be.

According to another aspect of the present invention, a door assembly is proposed comprising a door panel with an actuator for opening the door assembly and at least one of the locking devices discussed above.

Fig. 1

eine Türanordnung mit einer erfindungsgemäßen Verriegelungsvorrichtung;

Fig. 2

eine alternative Türanordnung mit einer erfindungsgemäßen Verriegelungsvorrichtung; und

Fig. 3

eine Detailansicht einer erfindungsgemäßen Verriegelungsvorrichtung und eines zentralen Signalgebers

zeigt.The above-described features and aspects of the present invention are explained below with reference to the accompanying drawing figures, in which

Fig. 1

a door assembly with a locking device according to the invention;

Fig. 2

an alternative door assembly with a locking device according to the invention; and

Fig. 3

a detailed view of a locking device according to the invention and a central signal generator

shows.

Fig. 1 shows a door assembly 11 according to the invention with a door leaf 10, to which a door handle or a door handle 3 as the first actuating device and a locking housing 2 of a locking device 1 according to the invention are provided. The locking housing 2 is arranged as a large-area, compact housing directly below the door handle 3. In a solid position, it prevents downward movement of the door handle 3, whereby the door assembly 11 is blocked as an escape route. In a second position, shown in dashed lines, the lock housing 2 is shown pivoted by 90 ° in the clockwise direction, so that the door handle 3 can be actuated without colliding with the lock housing 2. The structure and function of the lock housing 2 of the invention Locking device 1 is used in conjunction with Fig. 3 explained in more detail.

Fig. 2 shows a door assembly 11 with a door leaf 10, to which a particular in the United States of America usual panic bar 3 is provided as a first actuator. The function of the panic bar 3 can be summarized in terms of the present invention so that a pressure or downward movement of the rod 3 from a certain minimum effort allows opening of the door assembly 11. Below the panic bar 3 as the first actuating device, a locking housing 2 of a locking device 1 according to the invention is shown in a first solid representation and in a second, dashed representation. While the panic bar 3 can not be successfully operated by the latch housing 2 in the first solid line, pivoting the latch housing 2 90 degrees clockwise results in release of the panic bar 3. Thus, manual operation of the illustrated door assembly 11 is manually panned of the lock housing 2 and actuation of the illustrated panic bar 3 necessary. A pre-automatic pivoting of the locking housing 2, however, requires only an intuitive and / or by pressure due to people (masses) automatic and therefore possible under preload operation of the actuator. 3

Fig. 3 shows a locking housing 2 of a locking device according to the invention 1. This is connected via a shaft 12 with a (not shown) door. On the shaft 12, a drive 4 is mounted. By means of the drive 4, the lock housing 2 can be pivoted in response to an electrical signal of a control unit 5. The control unit 5 is for this purpose via electrical lines to the drive. 4 connected. In addition, the locking housing 2, a second actuator in the form of a push button 7. This is connected via electrical lines to the control unit 5. About the push button, the control unit 5 can be caused to provide the drive 4 with electrical energy. In addition, the lock housing 2 has an alarm button 8 under a protective cover 6. The alarm button 8 is connected to the control unit 5 via electrical lines. Furthermore, the control unit 5 has a transmitting unit whose antenna 13 is set up to transmit and / or receive signals. Such signals may be, for example, the operation of the alarm button 8, in response to which the control unit 5 sends a message via a second, also drawn antenna 13 to a signal generator 9 of a central information system. In addition, for example, a signal can be sent via the signal generator 9, which causes the control unit 5 to pivot by means of the drive 4, the lock housing 2 in an unlocking position. In order to be able to supply the control unit 5 and / or the drive 4 with electrical energy at least temporarily even in the event of a power failure, a battery 14 is provided within the control unit. It is obvious that in Fig. 3 shown system could be extended from a (central) signal generator 9 and a locking device 1 according to the invention by further locking devices 1 and / or other signal generator 9.

A central idea of the present invention is to expand a manually actuable locking housing on a door relative to the prior art in that it is possible to unlock and / or lock the locking housing by means of a drive unit.

Although the present invention has been described in detail and concretely with reference to the accompanying drawing figures and its operation has been explained, modifications by those skilled in the art remain within the scope of the present invention, the scope of which is defined solely by the appended claims.

LIST OF REFERENCE NUMBERS

1 locking device 2 lock housing 3 Actuator of the door 4 drive 5 control unit 6 protective cover 7 push-button 8th Panic button 9 central signaling device 10 door 11 door assembly 12 wave 13 antenna 14 battery

Claims (10)

Locking device (1) for an actuating device (3) of a door, wherein The locking device (1) comprises a locking housing (2) and a drive unit (4), • the lock housing (2) - Is manually movable between a first position and a second position and - Is set to lock in the first position, the actuator (3) of the door, and • The drive unit (4) is adapted to bring the lock housing (2) from the first position to the second position. Locking device (1) according to claim 1, wherein • The locking housing (2) comprises an energy store (14) and • The drive unit (4) is adapted to bring the lock housing (2) in response to a signal, in particular a shutdown of an electrical power supply, from the first position to the second position. Locking device (1) according to claim 1 or 2, wherein the drive unit (4) comprises a magnet, in particular a lifting magnet, and / or a rotary electric drive (4). Locking device (1) according to one of the preceding claims, wherein the locking housing (2) is adapted for attachment to the outside of a door leaf (10). Locking device (1) according to one of the preceding claims, further comprising a control unit (5), which is set up in response to an operation of a second, in particular in the region of the door arranged actuating device (7) and / or a remote-controlled signal, in particular wired and / or wireless, the drive unit (4) to control. Locking device (1) according to claim 5, wherein the locking device (1) comprises the second actuating device (7) for actuating the drive unit (4) and / or an alarm button (8). Locking device (1) according to one of the preceding claims, wherein the locking housing (2) is adapted to be manually operated in response to a comparatively high, predefined minimum force. Locking device (1) according to one of the preceding claims further comprising an electrical energy store (14) which is adapted to supply the drive device (4) with electrical energy. Locking device (1) according to one of the preceding claims, wherein the actuator (3) of the door is a door handle, a door handle, a panic bar, a door lever or a similar, externally mounted on a door leaf (10) element. Locking system comprising • at least one locking device (1) according to one of the preceding claims and • one with the locking device (1) connectable, in particular from the locking device (1) arranged remotely, signal generator (9).

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