ES2590378T3 - Interlock device for a door and / or a window with a central opener of the opener - Google Patents

Abstract

Interlock device for a door and / or a window, comprising a) several interlocking points formed by elastic lock latches (10) and electric door openers (20) that can be remotely operated and cooperate with these b) preferably a lock (1s) with at least one pin (1sr), respectively with a closing plate (2sb) cooperating with it, c) a central drive device (22) that is connected to the openers (20) so that the door opener (20) can be unlocked together, it being provided that each electric door opener (20) has an additional unlocking device (220) associated, through which the door opener (20) can be unlocked and / or locked, that the device central drive (22) is connected to the unlocking devices (220) of the opener (20) to control the unlocking devices (220), and that the unlocking devices (220) have such a magnetically acting device (220pm) and the magnetically acting device of the unlocking device cooperates without contact with an opener of the opener (20), it being provided that the unlocking device is configured as a separate device from the associated opener, which is arranged outside the opener and / or configured as an additional device of the opener, and that the magnetically acting device (220pm) is supported outside the opener in a mobile manner with respect to the opener (20).

Description

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DESCRIPTION

Interlock device for a door and / or a window with a central opener of the opener

The invention relates to an interlocking device with a door opener. In addition, the invention relates to an interlocking device for doors and / or windows with several interlocking points, formed by elastic lock latches and electric openers that can be remotely operated and cooperate with them.

For reasons of security against theft, entry doors with several, preferably three collars, have long been mounted. These doors have a main lock in the center of the door with a latch and a pin and, in the upper and lower areas of the door, additional pins or pivoting pins that engage additionally during the interlocking of the door.

Here are some definitions of terms first:

The term "door opener" is understood in the present application as "remote operable retention device for a door and / or for a window". The remote drive is preferably performed electrically, but it can also be carried out in another way, for example hydraulically, pneumatically or the like. The retention device has a remote actionable locking device and a door opener latch. The locking element on the outlet side of the locking device cooperates indirectly or directly with the door opener latch and switches the door opener latch to a locked position and a release position. Lock position means that the door opener latch is locked and therefore the door cannot be opened. Release position means that it is released and the door can be opened.

It is expressly noted that not only the door opener means a door opener, but also a gate, a window and / or another closing device with a leaf supported in a mobile way. That is to say that the term "door" means a gate, a window and / or another closing device with a leaf supported on the mobile form. In this door in this sense it can be a door in a building, but correspondingly also a door in a vehicle, for example a car. But also, to clarify, it should be noted that the door opener does not mean that a group has to be provided for actuating the door opening movement; although such a group may be provided as an additional device.

The term "leaf" or "door leaf" means in the present application a rotating leaf and / or a sliding leaf made up of one or more such sheets. It can also be a comparable non-passable closing device in the field of construction or furniture, for example also a smoke protection hatch.

The term "lock latch" means in the present application the elastically supported latch that cooperates with the door opener latch. But basically it can also be supported rigidly. It may be arranged in combination with a lock, but it is not essential. In the case of elastically supported lock latches, a bevel may preferably be made in the lock latch, so that when the door is closed the door opener latch is elastically inserted when the bevel immediately before the door closing position comes in contact with the door frame. In the closing position, the lock latch then enters, under the action of the spring, into the door opener housing by engaging behind the door opener latch.

By pin means pin elements that are mobilely supported, preferably on the side of the sheet, through an adjustment device. In the interlocking position they engage in housings of a closing plate preferably arranged stationary on the side of the frame. Preferably, they engage behind the closing plate. The term "closing plate" is understood in the present application as pin housing, behind which a pin engages in the locked position. The pin plate can also be made to accommodate several pins, for example extending through the entire horizontal or vertical side of the frame and presenting several pin housings. The adjustment device for actuating the pin can be a lock preferably arranged on the side of the blade, which can be operated by means of a key.

The structure known per se of a door opener is described for example in document DE4229239C1. In this opener, the locking device is configured as an electromechanical device consisting of a lever device and an electro-hand. In this known opener, the lever device consisting of a lever with one arm and a lever with two arms engages directly in the opener latch made as a pivoting latch. The lever device is retained through the electroiman in case of electrical supply, so that when the electroiman is not powered by the door opener latch is released. Therefore, this door opener operates according to the so-called idle current principle, unlike the equally known working current principle in which the release position exists with the electrically powered current and the blocking position exists with the electroiman no. powered by current.

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Another interlocking device with several interlocking parts formed by elastic latches and door openers that can be operated remotely and cooperating with them was disclosed by document DE202007015666U1. A central drive device is provided which is connected to the opener so that the opener can be unlocked together.

The present invention has the objective of providing an alternative interlocking device and especially a multipoint interlocking device of the type mentioned at the beginning that can be easily operated and has a simple structure.

According to the invention, this objective is achieved with the corresponding object of claims 1 or 11. According to claim 1 an interlocking device for a door and / or a window is proposed, comprising

a) several interlocking points formed by elastic lock latches and remote-operated electric door openers that cooperate with these

b) preferably a lock with at least one pin, respectively with a closing plate cooperating with it,

c) a central drive device that is attached to the door openers such that the door openers can be unlocked together,

it being provided that each electric door opener has an additional unlocking device associated, through which the door opener can be unlocked and / or interlocked,

that the central drive device is connected to the release devices of the opener to control the unlocking devices, and that the unlocking devices respectively have a magnetically acting device and the magnetically acting device of the unlocking device cooperates without contact with a door opener actuator,

it being provided that the unlocking device is configured as a separate device from the associated door opener, that it is arranged outside the door opener and / or configured as an additional device of the door opener, and that the magnetically acting device is supported outside the door opener with respect to the open doors.

According to claim 11, according to the invention a locking device is proposed comprising

a) an electric door opener,

b) an additional unlocking device for the electric door opener and

c) a drive device for remote operation of the unlocking device,

it being provided that the unlocking device is connected to the actuation device and the opener cooperates with the unlocking device in such a way that under the action of the unlocking device it can be unlocked and / or interlocked remotely controlled through the device drive, that the drive device is attached to the door opener unlocking device to control the unlocking device, that the unlocking device has a magnetically acting device and the magnetically acting device of the unlocking device cooperates without contact with an actuator of the door opener, it being provided that the unlocking device is configured as a separate device from the associated door opener, that it is arranged outside the door opener and / or configured as an additional door opener device, and that the magnetically acting device is supported a of the opener in a mobile way with respect to the opener.

An advantage of an interlocking device according to claim 1 is that through the lock latches the door leaf is maintained, through the lock latches that cooperate with the openers, at various points in the closed position, preferably in the door seal, even when the door is not locked, that is, when the door is not locked through pins of a lock that engage in closing plates. Therefore, the lock latches that cooperate with the opener latches form interlocking points. In preferable embodiments, several of these interlocking points are arranged between the door leaf and the door frame, preferably on the vertical lock side of the door. However, alternatively or additionally, the interlocking points may be arranged distributed on different sides of the door, for example also the upper horizontal door edge and the vertical door edge located on the side of the bolt, as well! as basically also in the horizontal door edge located on the side of the floor. In particularly preferable embodiments, it is provided that, in addition to these interlocking points formed through the elastic lock latches engaging in openers, interlocking points formed by pins of a lock that engage behind corresponding stationary closing plates are also provided. . The lock pins can be arranged so

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corresponding on different sides of the door, as described for the interlocking points formed with the lock latches. It should also be expressly noted that corresponding embodiments are provided for doors and windows, that is to say that the invention is not limited in any way only to doors, but in the same way refers to windows. It is that corresponding requirements for thermal protection and for theft protection exist for doors and windows.

By means of a joint unlocking through the central opener of the opener, the unlocking of the opener is greatly facilitated and manipulation errors can be avoided, for example that when interlocking or unlocking, one or more of the openers are forgotten.

It may be provided that the central drive device is connected to the openers so that the openers can be unlocked simultaneously or at least to a great extent simultaneously.

In addition, it may be provided that the central drive device has a mechanical transmission device that has at least sections of a push bar and / or a Bowden cable and / or a flexible band and / or a chain. Since a traction cable and a flexible band can only transmit tensile forces, they can advantageously be combined with a recovery spring, so that movements in two opposite directions of action can be transmitted. Alternatively or additionally, a Bowden cable consisting of a flexible core and a Bowden cable wrap may be provided, in order to transmit both traction forces and pressure forces.

It may also be provided that the central drive device has an electric line and / or a hydraulic line and / or a pneumatic line.

It may be provided that the unlocking device has a permanent magnet.

In an advantageous embodiment, it can be provided that the permanent magnet of the unlocking device cooperates without contact with an actuator of the opener.

It may be provided that the permanent magnet cooperates with an armature of the opener or with another actuator of the opener.

The permanent magnet can be supported outside the opener in a mobile manner with respect to the opener.

In addition, the permanent magnet may be arranged while being attached as to the movement to a push bar.

In addition, it may be provided that the push bar is made of a soft magnetic material.

Furthermore, it can be provided that the opener has a frame on which the components of the opener are supported, the central drive device being arranged largely outside the opener's frame, cooperating with its free end with a component of the opener, made as actuator, which is supported on the frame.

Now, the invention is described in detail with the help of embodiments. Show

Figure 1, a door with a multiple interlock in a schematic representation;

Figure 2, an example of an interlocking device not realized according to the invention;

an example of embodiment of the interlocking device according to the invention in a perspective representation from behind,

the interlocking device of Figure 3a in a perspective representation from the front; a first detail of the interlocking device of Figure 3a, in an exploded perspective view;

a second detail of the interlocking device of figure 3a in side elevation; the interlocking device of Figure 5a in a view from behind; a detail of the interlocking device in figure 5a in the unlocked state; the interlocking device of Figure 6a in the locked state;

another embodiment of the interlocking device according to the invention in side elevation; the interlocking device of Figure 7a in a view from behind;

the principle diagram of an opener in combination with an interlocking device, indicating three points of intersection for the action of the unlocking device.

in a schematic representation a door with a door leaf 1 with multiple interlocking, fixed to a stationary door frame 2, to bolts 3. Door leaf 1 has a lock 1s that has three pins 1sr arranged on the side of the sheet. In addition, three lock latches 10 are provided.

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 the

 figure 8

 Figure 1

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elastically supported on the side of the sheet. The 1sr pins are linked together by a 1ss pin drive bar. The central pin 1 sr may preferably be made as a push pin. The pin 1sr disposed above the central pin 1sr and the pin 1sr disposed below the central pin 1sr may preferably be made as pivot pins. In the interlocking position shown in Figure 1, the pins 1sr engage in closing plates 2sb stationary arranged in the door frame 2, that is to say in pin housings of the pin plate 1sb.

The elastic lock latches 10 are joined together by a lock latch drive bar 10ss. They cooperate with electric door openers 20 arranged in the door frame 2, such that in the door closing position they engage behind the door opener latches 20.

The lock 1s has a door handle 1g and a keyhole 1 sl through which a cylindrical lock can be operated, for example. Door knob 1g cooperates with the lock latches 10 coupled through the drive bar 10ss and the cylindrical lock that can be operated through a key cooperates with the pins 1sr coupled through the pin bar 1ss. The 1sr ace pins! as the lock latches 10 can be operated synchronously because of their mechanical coupling. By operating the door knob 1g, the lock latches 10 can be removed from the gear of the door opener latches. By actuating the lock 1s through the key, the pins 1sr can be removed from the engagement of the closing plates 2sb. To re-engage the pins with the 2sb locking plates, the lock is preferably also operated through the key in the opposite direction. The elastic lock latches 10 automatically reengage into engagement with the opener latches of the opener 20 when the door leaf 1 closes, because the elastic lock latches 10 have a drive bezel that cooperates with the opener latches. The 2sb closure plates can be made on the side of the frame as separate individual pin housings. Alternatively, however, it is also possible to provide a continuous closing plate with several pin housings.

In the case shown, the three lock latches 10 cooperate with three electric openers 20 that can be operated synchronously, which are arranged in the door frame 2 preferably in a recessed manner. The door opener 20 can be electric door openers by working current which, in the current powered state, release the door opener latches, thus allowing the opening of the door leaf 1, provided that the door leaf 1 is not locked through the pins 1 sr. The structure of the opener 20 can be conventional, that is, a structure as described for example in document DE4229239C1.

For the synchronous actuation of the three door openers 20 for lasting unlocking, a central actuation device 22 is provided which can be realized as a push rod. As shown in Figure 1, the drive device 22 has a drive button 22b which in the case of the push rod can be arranged in a push bar 22.

In the exemplary embodiment of FIG. 1, each door opener 20 has an unlocking device 220 associated. In the case shown, the unlocking device 220 is arranged in the push bar 22s. Through the associated unlocking devices 220, the openers 20 can be unlocked and / or interlocked. The actuation of the unlocking devices 220 is carried out is controlled by the central actuation device 22. The unlocking devices 220 are made in such a way that during their operation they act correspondingly on the associated door opener locking device. Instead of the push bar 22c, a Bowden cable or a flexible band or a chain can also be provided as a mechanical transmission element between the drive button 22b and the unlocking devices 220. But it is also possible to connect the drive button 22b to the unlocking devices 220 by means of an electric line or a hydraulic line or a pneumatic line. In addition, suitable converters may be provided, in case of hydraulic or pneumatic operation, for example adjustment cylinders, to transmit mechanical adjustment movements.

Figure 2 shows an example that is not part of the invention and in which the electrical connections of the three electric lock 20 are electrically connected between sl and can be connected to a voltage source through a common switch. In this way, the opener latches 20f can be unlocked or interlocked synchronously. The unlocking device 220 is formed in this example by the internal unlocking device of the opener 20, for example by an electromechanical switching device formed by a coil and an armature. In the example not performed according to the invention, shown in Figure 2, it is provided that for the release the door openers 20 must be permanently powered. In this embodiment, the opener coils are designed for permanent operation.

Figures 3a to 6b show an example of a preferable embodiment of the interlocking device according to the invention which provides as actuator a push bar 22s and as unlocking devices 220 devices that act magnetically in the form of permanent magnets 220pm. As electric door openers 20, electrically operated door openers are provided which, as essential components, have an electric handle,

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an armature and an opener latch, if necessary, with a locking lever sandwiched between the opener latch and the armature, a so-called change. The armature 20a is arranged in the case of the exemplary embodiment in a marginal area of the opener 20, so that for unlocking it can be operated through the central actuation device 22 by a permanent magnet 220pm approached from outside. The three permanent magnets 220pm provided for this actuation of the three openers 20 are arranged on the push bar 22s and can be operated by hand by means of an actuation button 22b which in this case is made as a sliding element (see figure 5a). The push bar 22s is made substantially as a sheet of soft magnetic material with flanged housing sections 22a (see Figure 4), on which the permanent magnets 220pm are adhered by magnetic force. The 220pm permanent magnets are respectively covered by a 22g housing. Since the permanent 220pm magnets are not rigidly mounted, but mobilely on the push bar 22s, the position tolerances of the permanent 220pm magnets are not critical. The possible sliding path of the permanent magnets 220pm is limited by the housings 22g that are rigidly connected with the closing plate located on the side of the frame or with the frame of the opener 20 or the push bar 22s. The 220pm permanent magnets have a square shape and are made for example of a magnetic material of neodymium-iron-boron with the magnetization of N42 and with a clamping force of 40 N. The upper use temperature of said magnetic material amounts to 80 ° C. The push bar 22s is arranged behind the closing plate 2sb and optically covered by the closing plate 2sb. On the push bar 22s there is arranged a ball ratchet not shown in the figures that fix the push bar 22s in two final positions defined against the accidental adjustment.

As can be seen in figure 4, the push bar 22s is made in two pieces. The two partial sections of the push bar 22s are joined by a joint element 22v and the drive button 22b. The actuation button 22b passes through a rear glutton section through a rectangular gliding cavity in the closing plate 2sb and meshes with two cylindrical appendages in through holes in the end pieces of the two partial sections of push bar 22s. The connecting element 22v and the actuation button 22b are detachably connected to each other by means of fixing screws.

Figures 6a and 6b show in detail the joint action of the permanent magnet 220pm with the door opener 20.

Figure 6a shows the opener 20 in the unlocked state. In the unlocking position shown in Figure 6a, the permanent magnet 220pm is in contact or almost in contact on a front side with the door opener housing 20, and in this position it is in any case in magnetic contact with the armature 20a of the door opener 20. The armature 20a is pivoted to its unlocking position against the force of an armature spring 20af, in which it releases an internal locking lever of the opener, sandwiched between the armature and the opener latch, for example a so-called change ( It is not represented in the embodiment shown in Figures 6a and 6b). This locking lever that cooperates with the door opener latch latch 20, a so-called change, releases the door opener latch in this position.

Figure 6b shows the opener 20 in the locked state. The air gap formed between the permanent magnet 220pm and the armature 20a is so great that the spring force of the armature spring 20af pivots the armature 20a to its interlocking position in which the internal locking lever is also locked, a so-called change of the door opener, so that the door opener latch is locked again.

Other corresponding embodiments are provided with unlocking devices 220 made as a permanent magnet, in which a manual adjustment lever of the opener, which switches the armature, is arranged in the opener housing and the permanent magnet cooperates with this adjustment lever. correspondingly as shown in Figures 6a and 6b for the joint action of the armature and the permanent magnet.

Figures 7a and 7b show an exemplary embodiment in which the interlocking device is made in the same manner as described above, but with the difference that the push bar 22s cooperates with an electric drive. Therefore, in this case, an electric drive motor constitutes the unlocking devices 220 which, however, in the same manner as described above, can be made with a permanent magnet for the magnetic actuation of the opener of the opener. The electric drive motor features a 220em electric motor and a 220g gear. The output of the gear 220g attacks through the connecting element 22v on the push bar 22s that controls the permanent magnet.

The gear 220g can be made, for example, as a crank and crank mechanism, the crank being connected to the output of the electric motor 220em and the rotation axis of the crank being advantageously arranged horizontally. In this preferable arrangement, the crank and crank mechanism has two dead positions ("6 hours" and "12 hours") in which the push bar 2sb remains when the electric motor 220em is disconnected. Manual operation of the push bar 22s through the drive button 22b remains possible. In addition, it can be provided to dispense with the electromagnets described above of the opener 20 and instead unlock or lock the opener 20 both temporarily and in permanent operation by the electric drive described.

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In addition, it is possible to perform the 220g gear as a self-inhibiting gear, for example as a helical gear. In this case, the drive button can be suppressed, since the push bar 22s is blocked by the self-inhibiting gear.

In an example of a modified embodiment with respect to the embodiment example of Figures 7a and 7b, it can also be provided that the drive groups with the electromotor drives 220em are replaced by electromagnets or other non-electric drive groups, for example.

In addition, the actuation of the push bar 22s by means of closing cylinders may be provided, so that the drive is possible only by authorized persons.

Figure 8 shows the basic principle of the opener device 20 according to the invention that cooperates with an unlocking device 20eb having a permanent magnet device, three possible points of intersection for the action of the unlocking device 20eb being represented in Figure 8. The opener device 20 in FIG. 8 has an electrical switching device 20sa, a locking device 20sp and an opener latch 20f that are arranged behind each other in the action flow of the opener device 20. The switching device 20sa can operated by a device

drive 20b, for example, it can be an electric switch arranged between an electric power source and the switching device 20sa. The switching device 20sa can be a conventional internal door opener switching device, formed by an electroiman, a coil core and an armature. The blocking device 20sp connected between the switching device 20sa and the door opener latch 20f can have a blocking element for example with a so-called change, or a blocking slide or a blocking pin. The blocking element acts directly or indirectly on the opener latch 20f. In FIG. 8, as already mentioned, with the door opener device 20 the device cooperates

unlocking 20eb which is connected in the action flow with the switching device 20sa or the locking device 20sp or the opener latch 20f. These three alternatives are represented in Figure 8.

Furthermore, in figure 8 it is shown that the door opener latch 20f is connected in the action flow with the lock latch 10, that is to say cooperates with the lock latch 10 as is usual in conventional door openers.

The action flows represented in Figure 8 are not necessarily oriented in one direction. For example, the lock latch 10 can also retract back onto the locking device 20sp and put it in the release position, as long as the switching device 20sa allows.

The opener works in such a way that the switching device 20sa switches the locking device 20sp, so that in a first switching position the opener latch 20f is retained by holding the lock latch 10 with the door closed, and that in a second switching position the opener latch 20f is released and the opener latch 20f does not hold the lock latch 10, of

way that you can open the door. Through the external release device 20eb you can

unlocking the switching device 20sa, so that the armature of the switching device is maintained by the unlocking device 20be in an inactive position, such that the door opener latch 20f is released independently of the switching position of the device 20sa switching In the inactive position of the unlocking device 20eb, the unlocking device does not act on the opener.

The realization of the release device 20eb with a permanent magnet device allows a particularly simple construction structure that can be especially insensitive to tolerances and / or can be subsequently placed in the opener.

The actuation of the unlocking device is carried out through a separate actuation device not shown in Figure 8. This attacks on the unlocking device and can be carried out, for example, as a mechanical transmission device with a push linkage.

List of reference symbols

1 door leaf

2 Stationary door frame

3 Pernio

1s Lock

1st Pin

1ss Pin Drive Bar

1g Door Puno

1 sl Keyhole

10 Elastic lock latch

 10ss Lock latch drive bar

 2sb closing plate

 20 Door Opener

 20th Induced

 5

 20af armature spring

 20eb Unlocking Device

 20f Door opener latch

 20sa Switching Device

 20sp Locking Device

 10

 22 Central Drive Device

 22b Drive button

 22g Magnetic housing

 22s Push bar

 22v Union Element

 fifteen

 220 Unlocking Device

 220em electric motor

 220g Gear

 220pm Permanent Magnet

Claims (11)

5 10 fifteen twenty 25 30 35 40 Four. Five fifty 55 60 65 1. Interlocking device for a door and / or a window, comprising a) several interlocking points formed by elastic lock latches (10) and electric door openers (20) that can be remotely operated and cooperate with these b) preferably a lock (1s) with at least one pin (1sr), respectively with a locking plate (2sb) cooperating with it, c) a central drive device (22) that is connected to the opener (20) such that the opener (20) can be unlocked together, being planned that each electric door opener (20) has an additional unlocking device (220) associated, through which the door opener (20) can be unlocked and / or locked, that the central drive device (22) is connected to the unlocking (220) of the opener (20) to control the unlocking devices (220), and that the unlocking devices (220) respectively have a magnetically acting device (220pm) and the magnetically acting device of the unlocking device cooperates without contact with a door opener actuator (20), it is provided that the unlocking device is configured as a separate device from the associated door opener, which is arranged outside the door opener and / or configured as an additional door opener device, and that the device (220pm) that acts magnetically is supported outside the opener in a mobile manner with respect to the opener (20). 2. Interlocking device according to claim 1, characterized by that the device (220pm) acting magnetically as permanent magnet cooperates with an armature (20a) of the opener (20) or with another actuator of the opener (20). 3. Interlocking device according to claim 1 or 2, characterized by that the device (220pm) acting magnetically as permanent magnet is supported outside the opener (20) in a mobile manner with respect to the opener (20). 4. Interlocking device according to one of the preceding claims, characterized by that the device (220pm) that acts magnetically as permanent magnet is arranged to be connected in relation to the movement to a push bar (22s). 5. Interlocking device according to claim 4, characterized by that the permanent magnet (220pm) is attached to the push bar (22s) by magnetic force. 6. Interlocking device according to claim 5, characterized by that the push bar (22s) is made of a soft magnetic material. 7. Interlocking device according to one of the preceding claims, characterized by that the central drive device (7) is connected to the opener (20) in such a way that the opener (20) can be unlocked simultaneously or at least substantially simultaneously. 8. Interlocking device according to one of the preceding claims, characterized by that the central drive device (22) has a mechanical transmission device that has at least sections a push bar (22s) and / or a Bowden cable and / or a flexible band and / or a chain. 9. Interlock device according to one of the preceding claims, characterized by that the central drive device (22) has an electric line and / or a hydraulic line and / or a pneumatic line. 10. Interlock device according to one of the preceding claims, characterized by that the opener (20) has a frame on which the components of the opener (20) are supported, the central drive device being disposed mostly outside the opener frame (20) and 5 10 fifteen twenty 25 cooperating with its free end with a door opener component (20) configured as an actuator and supported on the frame. 11. Interlocking device comprising a) an electric door opener (20), b) an additional unlocking device (220) for the electric door opener (2) and c) a drive device (22) for the remote drive of the unlocking device (220), being planned that the unlocking device (220) is connected to the actuation device (22) and the opener (20) cooperates with the unlocking device (220) in such a way that under the action of the unlocking device (220) it can be unlocked and / or remotely controlled interlocking through the drive device (22), that the drive device (22) is connected to the unlocking device (220) of the opener (20) to control the unlocking device (220), that the unlocking device (220) has a magnetically acting device (220pm) and the magnetically acting device of the unlocking device cooperates without contact with an opener of the opener (20), it is provided that the unlocking device is configured as a separate device from the associated door opener, which is arranged outside the door opener and / or configured as an additional door opener device, and that the device (220pm) that acts magnetically is supported outside the opener in a mobile manner with respect to the opener (20).