EP2977535A1 - Closing mechanism and a drive device for a fire-proof door and fire-proof door with same - Google Patents

Abstract

To enable a structure of a cost-automatable fire protection door, the invention provides a closing mechanism (24) for a fire protection door (10) with: a driver (52) for taking a fire protection door leaf (18) into a closed position, a biasing means for biasing the driver (52) in the closed position, a locking device which locks the driver (52) in an open position (13) against the bias of the biasing means and by a closing signal for closing the fire door (10) in case of fire is solvable, and a Torantriebsnotentriegelungsbetätigungseinrichtung (50) which is connectable to a door drive (26) to actuate an emergency release (40) of the door drive (26) in case of fire and / or upon release of the locking device.

Description

The invention relates to a locking mechanism for a fire door with a driver to take a fire door wing in a closed position, a biasing device for biasing the driver in the closed position and a locking device which locks the driver in an open position against the bias of the biasing device and, in particular by a closing signal , to close the fire door in case of fire is solvable.

Such a locking mechanism is from the EP 1 589 175 A2 known. This document will be discussed in more detail below.

The DE 20 2013 000 346 U1 relates to an automated sliding door without fire protection function with integrated drive and an emergency unlocking device for unlocking the sliding gate of the drive for manual displacement in case of power outages or the like.

• o " Torsysteme für Sammelgaragen" der Hörmann KG Verkaufsgesellschaft, Stand 10.2013 mit dem Druckvermerk 10.2013
• o Firmenbroschüre " Anleitung für Montage und Betrieb - Garagentorantriebe SupraMatic E/P - zweiteilig Text und Bilder, jeweils mit dem Druckvermerk 11.1998, veröffentlicht November 1998
• o Firmenbroschüre " Garagen- und Einfahrtstor-Antriebe der Hörmann KG Verkaufsgesellschaft, Stand 05.2014, Druckvermerk 05.2014
• o DE 20 2007 014 548 U1
• o DE 20 2006 008 632 U1
• o DE 199 51 289 C2 .

From the following documents separate door drives are known, which can be connected as a separate unit for connection to different gates - even later -

• o " Gate systems for collective garages "of the Hörmann KG sales company, as of 10.2013 with the printing note 10.2013
• o company brochure " Instructions for installation and operation - Garage door operators SupraMatic E / P - two-part text and images, both with the printing note 11.1998, published November 1998
• o company brochure " Garage and entrance gate drives of the Hörmann KG sales company, as of 05.2014, imprint 05.2014
• O DE 20 2007 014 548 U1
• O DE 20 2006 008 632 U1
• O DE 199 51 289 C2 ,

In these known Torantrieben an emergency release is usually provided to decouple in emergencies, such as power failures, the connected gate of the door drive and its inhibition and can open and close the gate manually.

According to the aforementioned documents, trailing drives, such as e.g. the door drives "SupraMatic" and "ProMatic" the Hörmann KG sales company is known, comprising a motor drive unit, guided in a guide rail door drive carriage for connection to a door leaf to be opened, a Torantriebsgetriebe such. Zahngurtgetriebe or chain transmission, which converts the driving force from the motor drive unit in a reciprocating motion of the carrier carriage within the guide rail, and an emergency release, by means of which the door drive slide is decoupled from the Torantriebsgetriebe and thus freely displaceable within the guide rail. As a result, the connected door leaf can be moved without Mitbewegung the Torantriebsgetriebes.

The motor drive units usually have self-locking motor gear, so that otherwise the door leaf would be locked in case of power failure. By pressing the emergency release, the door leaf can be manually opened and closed even during power outages or the like. However, a comparable emergency release is also applicable to other types of door operators, such as e.g. Wellentorantriebe or direct drives, known.

All the aforementioned gates and door drives are intended for normal garage door and industrial door entrances.

If a driveway extends over different fire compartments of a building, as may be the case with larger industrial buildings or collective garages or larger parking garages or underground garages, the different fire compartments must be protected by fire protection shutters. For transits, fire protection doors, such as Fire protection sliding doors, provide. Fire doors have matched frames and sashes that withstand a one-sided fire load for a predetermined period of time. For example, a minimum protection period of 30 minutes is provided here. But there are also fire doors with greater fire protection, such as T90 for 90 minutes of protection and T120 for 120 minutes of protection. The corresponding fire protection function must have been proven in fire tests.

In order for fire doors to fulfill their fire protection function, they must be closed in case of fire. Therefore, fire doors, e.g. also fire doors, biased in their closed position. The fire protection function must also be guaranteed in the event of power outages, which are not unlikely in fires. Therefore, the closing function must work without mains connection. Fire doors therefore have a self-closing mechanism to move the gate in case of fire over closing weights in the closed position. If you want to move the gate from the closed position to the open position, you have to work against the bias of the locking mechanism, which is uncomfortable and energy-consuming. Many realized in practice fire doors, in particular fire protection sliding doors, are therefore always locked in the open position, for example, an electromagnet acts to lock. In case of fire, e.g. sent a signal to the locking device, which releases the lock so that the door leaf is moved by the locking mechanism from its open position to the closed position. The same happens in case of power failure, because then the electromagnet no longer provides the holding power.

A more convenient solution is the locking mechanism already mentioned above EP 1 589 175 A2 Here is a driver provided under Action of a biasing force of a biasing device, such as by means of a weight or a mechanical spring, moves the fire protection gate in a closed position. However, the driver can be decoupled from the gate when moving in the opening direction. It is thus formed a kind of freewheel, for example, acts via stops. If the driver is locked in the open position, the fire door can be easily moved manually. If the lock is released, then the driver moves so long in the closing direction until it detects the gate by a stop or the like and then takes him to the closed position. If the fire protection door leaf is moved from the open position to the closed position when the locking device is released, then the fire protection door leaf takes along the driver; only in this case you work against the biasing device. The locking device is only in case of fire or power outages - as previously known - solved. In normal operation, the fire door is easily manually movable.

A fire protection door designed as a fire protection sliding door, whose fire protection sliding door leaves and landing gear are, for example, in EP 1 748 135 A2 and the DE 10 2010 005 188 A1 described.

Starting from the closest prior art after the EP 1 589 175 A2 The object of the invention is to improve a closing mechanism for a fire protection door in such a way that a fire protection door can be operated more comfortably with a relatively inexpensive construction.

This object is achieved by a locking mechanism according to claim 1.

A drive device provided with such a closing mechanism as well as a fire protection door provided therewith are indicated in the dependent claims.

Advantageous embodiments of the invention are the subject of the dependent claims.

• einem Mitnehmer zum Mitnehmen eines Feuerschutztorflügels in eine Schließstellung,
• einer Vorspanneinrichtung zum Vorspannen des Mitnehmers in die Schließstellung, einer Arretiereinrichtung, die den Mitnehmer in einer Öffnungsstellung entgegen der Vorspannung der Vorspanneinrichtung arretiert und, insbesondere durch ein Schließsignal, zum Schließen des Feuerschutztors im Brandfall lösbar ist, und einer Torantriebsnotentriegelungsbetätigungseinrichtung, die an einen Torantrieb anschließbar ist, um eine Notentriegelung des Torantriebs im Brandfall und/oder bei Lösen der Arretiereinrichtung zu betätigen.

According to a first aspect, the invention provides a closing mechanism for a fire protection door, in particular a fire protection sliding door, with:

• a driver to take a fire door wing in a closed position,
• a biasing means for biasing the driver in the closed position, a locking device which locks the driver in an open position against the bias of the biasing means and, in particular by a closing signal, to close the fire door in case of fire is solvable, and a Torantriebsnotentriegelungsbetätigungseinrichtung which can be connected to a door drive is to actuate an emergency release of the door drive in case of fire and / or loosening the locking device.

It is preferred that the driver is designed such that it is decoupled in the locked state and / or during a movement in the opening direction of the fire protection door leaves, but entrains the fire protection door leaf when moving in the closing direction.

It is preferred that the Torantriebsnotentriegelungsbetätigungseinrichtung is arranged to be arranged on the Feuerschutztorflügel or on the driver or stationary and having an actuating gear to convert a relative movement between the driver and fire protection gate in an actuating movement for actuating the emergency release.

It is preferred that the actuating gear comprises a lever for gripping the relative movement and a traction means and / or a Bowden cable for transmitting a lever movement to the emergency release of the door drive.

It is preferred that the actuating gear is biased in a non-actuated position and is movable by the relative movement between the driver and Feuerschutztorflügel against the bias in an operating position.

According to a further aspect, the invention provides a drive device for a fire protection door, with a locking mechanism according to one of the preceding embodiments and a door drive for automatic Driving a Feuerschutztorflügels when locked by the locking device driver, the door drive has to be connected to the Feuerschutztorflügel output element, a motor drive unit and an emergency release for decoupling the output element of the motor drive unit and the emergency unlocking actuator to the emergency release for operating the same is connected.

It is preferred that the door drive is designed as a towed drive, with a guide rail, a guided by the guide rail reciprocally guided carriage as the output element and a tow drive gear for transmitting a drive movement of the motor drive unit to the carriage, the emergency release having a coupling means by means the carriage is connected in normal operation to the towing drive transmission and is decoupled from the tow drive transmission upon actuation of the emergency release to move the carriage independently of the motor drive unit along the guide rail free.

According to a further aspect, the invention provides a fire protection door with a fire protection door leaf, a door frame with a door guide for the fire protection door leaf and a closing mechanism according to one of the preceding embodiments and / or a drive device according to one of the preceding embodiments.

The fire protection door is preferably a fire protection sliding door with a fire protection sliding door wing, which is guided in a sliding gate guide.

Advantageously, a fire protection door can be driven by a door drive which has an emergency unlocking device. The emergency unlocking device is used to separate the driven wing of the fire door from the motor drive unit and / or a Torantriebsgetriebe.

• bei Stromausfall
• bei Betätigung eines Nothandauslösetasters oder eines sonstigen manuellen betätigbaren Betätigungselements
• bei Auslösung durch einen Brand- oder Rauchsensor, wie z.B. einen Rauchmelder

An actuation of the emergency unlocking device can advantageously be achieved by at least one of the following measures:

• in case of power failure
• upon actuation of an emergency manual release button or other manually operable actuator
• when triggered by a fire or smoke sensor, such as a smoke detector

While in Torantrieben so far an emergency unlocking serves to be able to manually move the gate by hand, is provided in an advantageous embodiment of the invention that actuation of the emergency unlocking device for self-closing of the fire door by a corresponding biasing means such. a closing weight takes place.

With the locking mechanism described here can be advantageously a fire door with relatively inexpensive construction comfortable in daily normal operation and thus operate independently of the operation in case of fire.

The door can be used comfortably and energy-saving in daily operation like a normal automated entrance gate, but fully fulfills the fire protection function in case of fire.

If a fire door is provided with a locking mechanism of the invention or one of its preferred embodiments, the fire door can be moved via a normal garage door operator or standard gate operator. In particular, when the driver, the locking device and the biasing means as in the EP 1 589 175 A2 are described, the gate can be moved freely, since the biasing force is triggered only in case of fire and acts on the gate. A connected door drive moves the door leaf only in normal operation and not in case of fire. In case of fire can be decoupled via the Torantriebsnotentriegelungsbetätigungseinrichtung the door drive from the gate, so that the gate is then closed by a self-closing device - biasing device with driver.

Advantageously, the drive can be decoupled from the gate in any position.

The pretensioner has e.g. Counterweights on and acts on a separately guided Mitnehmerwagen which is guided in a guide rail and, for. is held by means of an electromagnet or other usual in fire protection locks locking device. The gate can be moved freely, as the counterweight triggers only in case of fire. The drive moves the door only in the "daily business", not in case of fire. The drive is decoupled in case of fire; This can be accomplished via a mechanical and / or electrical device, so that the gate is then closed as usual via a counterweight.

The door drive emergency unlocking actuator may e.g. Have active actuators and / or operated passively on the use of relative movements at the gate.

The Torantriebsnotentriegelungsbetätigungseinrichtung can thus be a mechanical device or an electric or motor device by means of actuators or the like or have. Combinations are also conceivable (both electrically, by means of actuators, i.e. active, as well as passive, for example mechanically via the driver).

In a particularly preferred embodiment, a (eg passive) mechanical device is provided which uses a triggering movement in case of fire. For this purpose, in particular, the relative movement when moving the triggered driver can be exploited on the Feuerschutztorflügel too. This relative movement is tapped via a suitable actuating gear, such as a lever or the like, and transferred to trigger the emergency release on the door drive. For example, a rocker or a lever with a Bowden cable is provided for this purpose.

Depending on whether the emergency release is arranged stationary or mitbewegend, it is advantageous if the Torantriebsnotentriegelungsbetätigungseinrichtung mitbewegend arranged on the Feuerschutztorflügel or disposed on the driver or stationary, in the latter case preferably an initial movement of the driver out of the locking position is used to initiate the operation of the emergency release. Of course, the same operating principle, which triggers a release of the locking device, could also be used to actuate the emergency release. Thus, a, e.g. signal-operated, actuator be provided.

An advantage of particular aspects of the invention is that a fire protection door, in particular a fire door with a standard gate operator as available on the market, can be driven without modifications to the standard gate operator (possibly down to the terminals). The fire protection function remains fully guaranteed; in case of fire, the fire door closes safely, even if no electricity is available.

For normal operation, the gate is coupled to the door operator. Particularly preferred is a tow gate drive, such as e.g. one of the garage door drives "SupraMatic" or "ProMatic" Hörmann KG sales company provided, as described and shown in the company brochures of the Hörmann KG sales company mentioned above. Such tow gate drives have a Torantriebsführungsschiene in which a door drive slide is guided. About a push rod or the like, the fire door can be connected. The door drive has an emergency release by means of which the door drive slide can be decoupled from the door drive gear. For this, e.g. for other purposes, a pull cord provided with a user can press the emergency release. Instead of or in addition to this pull cord in an embodiment of the invention, an actuating gear in the form of a traction mechanism, in particular a Bowden cable connected.

The driver of the locking mechanism is preferably held by a magnetic holder of the locking device. In case of fire, the Magnetic holder and releases the driver. This is by the action of the biasing device, in particular by counterweights - see in detail the EP 1 589 175 A2 - triggered. The shift takes place in a preferred embodiment of a train weight. The weight is located eg in one of the Zargenholme the Torzarge. The locking mechanism preferably has a freewheel which detects the door leaf only when the driver moves in the closing direction, but releases the door leaf when the catch moves in the opening direction.

In the region of a stop of the driver, a spring-loaded rocker or a spring-loaded one-armed or two-armed lever is preferably provided, which is moved by the stop of the driver on the door leaf and the traction mechanism, in particular a Bowden cable, triggers. About this traction mechanism, in particular a Bowden cable, then the emergency unlocking takes place on the door drive slide.

In normal operation, the freewheel - driver - is firmly locked on one side via the magnetic switch; the pretensioner is always cocked, e.g. a counterweight is always in the raised position. The leaf can be moved freely over the door drive without loading by the biasing device. Only when the magnetic switch or other locking device triggers in the event of fire, the freewheel - driver - on the actuating lever and leads this against a spring tension or other bias in the release position; on the lever of the Bowden cable is connected, which is guided to the door drive carriage of the door drive and there executes an unlocking.

As this basically in the EP 1 589 175 A2 is described, a method of gate in case of fire by means of the driver of the locking mechanism. This is preferably connected via cables to the biasing device, in particular to a counterweight. Preferably, a braking device is further provided which the method of the gate regulates. The combustion device may, for example, have a hydraulic valve.

This design of the locking mechanism can be connected to a fire protection gate, in particular a fire protection sliding door, a commercial door drive with emergency release and thereby fully guarantee the fire protection function and yet provide a comfortable normal operation. The fire door can be opened and closed like a normal gate with high frequencies. Since the driver moves only in case of fire, even a high-frequency operation of the door drive with the connected door does not lead to wear of the locking mechanism. Further, the gate is preferably always decoupled in normal operation of the driver designed as a freewheel. You do not have to carry the weight and not work against any other biasing force of the biasing device. The door drive can thus be operated energy-saving.

Fig. 1

eine Unteransicht eines Feuerschutztores in Form eines Feuerschutzschiebetors mit Schließmechanismus und Torantrieb;

Fig. 2

eine Innenansicht auf das Feuerschutztor von Fig. 1;

Fig. 3

eine rechte Seitenansicht auf das Feuerschutztor von Fig. 2;

Fig. 4

eine perspektivische Ansicht eines Torantriebsanschlussbereichs des Feuerschutztores (rechter oberer Eckbereich von Fig. 2);

Fig. 5

eine Innenansicht des in Fig. 4 dargestellten Torantriebsanschlussbereichs;

Fig. 6

eine Unteransicht des in Fig. 4 dargestellten Torantriebsanschlussbereichs;

Fig. 7

eine rechte Seitenansicht des in Fig. 4 dargestellten Torantriebsanschlussbereichs; und

Fig. 8

eine weitere perspektivische Darstellung des Torantriebsanschlussbereichs.

An embodiment of the invention will be explained in more detail with reference to the accompanying drawings. It shows:

Fig. 1

a bottom view of a fire door in the form of a fire sliding door with locking mechanism and door drive;

Fig. 2

an interior view of the fire door of Fig. 1 ;

Fig. 3

a right side view of the fire gate of Fig. 2 ;

Fig. 4

a perspective view of a Torantriebsanschlussbereichs the fire door (right upper corner of Fig. 2 );

Fig. 5

an interior view of the Fig. 4 illustrated gate drive port area;

Fig. 6

a bottom view of the in Fig. 4 illustrated gate drive port area;

Fig. 7

a right side view of the in Fig. 4 illustrated gate drive port area; and

Fig. 8

another perspective view of the Torantriebsanschlussbereichs.

In the Fig. 1 to 8 a fire protection door 10 is shown in the form of a fire protection sliding door 12 with a drive device 14 in the open position 13.

The fire protection sliding door 12 has a door frame (not shown), a door guide 16 and a fire protection door leaf 18 in the form of a fire protection sliding door 20. In the drawings, the Feuerschutztorflügel 18 is in the open position 13 and leaves a door opening 17 free. By means of the drive device 14, the Feuerschutztorflügel 18 can be converted into the closed position, where the Feuerschutztorflügel 18 closes the door opening 17. In addition, the drive device 14 is also designed to open the door.

The gate guide 16 has a gate guide rail 22, in the carriage (not shown) of the fire protection sliding door 20 are guided. The carriage and the gate guide rail 22 are as in the EP 1 748 135 A2 described constructed. In this document, the preferred construction of the fire protection door leaf 18 is explained in more detail.

The drive device 14 has a closing mechanism 24 and a door drive 26.

In the example shown, the door drive 26 is a door drive "SupraMatic" available from the Hörmann KG sales company, as it is structurally in the company brochure "Door systems for collective garages" of Hörmann KG sales company, as of 10.2013 / Druck 10.2013 described and shown.

Accordingly, the door drive 26 is designed in particular as a tow gate drive 28 and has a motor drive unit 32 housed in a drive head 30, a guide rail 34, a carriage 36 guided in the guide rail 34 and a drag drive transmission (not shown in detail in the drawings), in particular endless draw gear transmission, using a Zahngurtes or a drive chain on. The drag drive transmission is drivable by means of the motor drive unit 32 so that a strand of the traction means within the guide rail 34 moves back and forth. The carriage 36 is coupled by means of a coupling 38, which is part of an emergency release 40, to this strand of the towing drive gear. The emergency release 40 has an emergency release lever 42, wherein a rotation of the emergency release lever 42 releases the clutch 38. As a result, the carriage 36 is decoupled from the motor drive unit 32 freely movable within the guide rail 34.

As in particular in the Fig. 4 to 8 shown, the fire protection sliding door 20 is connected by means of a bow-shaped door knock 44 and a pivotally connected to the door fitting 44 push rod 46 hinged to the carriage 36.

The lock mechanism 24 includes a self-closing device 48 and a door drive emergency unlocking actuator 50.

The self-closing device 48 is constructed as shown in FIG EP 1 589 175 A2 which is expressly referred to, described and illustrated.

As in particular from the Fig. 1 to 3 can be seen, the self-closing device 48 has a guided in the door guide rail 22 driver 52, a (not shown) locking means for locking the driver 52 in the open position shown in FIGS and the in particular signal-controlled release of the lock in case of fire and a biasing device for biasing the driver 52 in the closed position. The locking device and the biasing device are not shown in detail in the drawings shown; However, their structure is from the EP 1 589 175 A2 removable. Also, the driver 52 with a in the EP 1 589 175 A2 Damping device (braking device) shown in more detail provided.

Accordingly, the driver 52 is preferably biased by guided in a side region of the door frame counterweights in the closed position and is locked in normal operation against this bias in the open position by means of the locking device.

The locking device has, for example, a magnetizable armature which can be retained by a stationary electromagnet against the closing force. If the magnetic force of the electromagnet fails, as happens for example by signal-controlled shutdown or in the case of a power failure, then the driver 52 moves under the drive of the biasing device in the closing direction.

In particular, the self-closing device 48 can be actuated in the event of power failures, via a manual release and / or a triggering method by means of a fire detector or smoke detector. In case of power outages, for example, the lock is released by an electromagnet. For manual release, a manual release button (not shown) may be provided in the region of the door, by means of which an operator can initiate a self-closing, for example by delivering a signal to a controller of the electromagnet. Even a fire alarm system or the like can trigger such a signal.

The driver 52 has a stop 54 which abuts when moving the driver 52 in the closing direction against a counter-stop 56 on Feuerschutzschiebetorflügel 20 to take the Feuerschutzschiebetorflügel 20 in case of fire in the closed position.

Hereinafter, the door drive emergency unlocking actuator 50 will be described with reference to the drawings in FIGS Fig. 4 to 8 explained in more detail.

The Torantriebsnotentriegelungsbetätigungseinrichtung 50 is connected to the emergency release 40 of the door drive 26 to operate in case of fire.

The door drive emergency release actuator 50 is disposed on the fire protection sliding door 20 in the illustrated example.

The Torantriebsnotentriegelungsbetätigungseinrichtung 50 has an actuating gear 58, which converts a relative movement between driver 52 and fire protection gate 18 in an actuating movement for actuating the emergency release 40.

The actuating gear 58 has a rocker or a lever 60 which is attached by means of a lever attachment 62 on a counter-stop 56 end face portion 64 of the fire door 18 such that a free lever arm 66 is detected by the stop 54 of the driver 52 so as to Lever 60 to move.

The lever 60 is biased by a spring 68 in its non-actuated position.

At the lever attachment 62 is a storage for a traction mechanism 70 for transmitting the actuation movement to the emergency release lever 42 of the emergency release 40. The traction mechanism 70 is formed in the example shown by a Bowden cable 72. One end of the sleeve of the Bowden cable 72 is fastened to the lever attachment 62, while a pull cable of the Bowden cable 72 is fastened to the lever 60. The other end of the sleeve of the Bowden cable 72 is secured to the carriage 36, while the other end of the pull cable is attached to an emergency release lever 42.

In the following, the function of the drive device 14 based on the representation in the Fig. 4 to 8 explained in more detail.

In normal operation, the driver 52 is locked by means of the locking device in its open position. The Feuerschutzschiebetorflügel 20 can be decoupled with its chassis within the door guide rail 22 of the driver 52 and is for this purpose connected to the carriage 36 of the door drive 26. In normal operation, automatic opening and closing of the fire protection sliding door 20 takes place by actuation of the door drive 26.

The Öffnungsendstellung the Feuerschutzschiebetorflügels 20 when actuated by the door drive 26 and the locking position of the driver 52 are chosen so that even with complete open position of Feuerschutzschiebetorflügels 20, a distance between the stop 54 of the driver 52 and in the non-actuated position under bias of the spring 68th located lever arm 66 is maintained.

In case of fire or in the event of a power failure, the locking device releases the driver 52. This moves in the closing direction until the stop 54 detects the lever arm 66. Upon further movement of the lever 60 is moved, wherein the lever movement is transmitted via the Bowden cable 72 to the emergency release lever 42 of the emergency release 40 of the door drive 26. As a result, the emergency release 40 is actuated and the carriage 36 is decoupled from the motor drive unit 32. Subsequently, the driver 52 moves further in the closing direction and takes over the stop 54 and the counter-stop 56 the Feuerschutzschiebetorflügel 20 with in the closed position.

Other embodiments not shown here are possible. In particular, the configuration of the door drive emergency release actuator 50 is not limited to the illustrated mechanical design. The Torantriebsnotentriegelungsbetätigungseinrichtung 50 could also have a - eg signal-actuated - actuator, the input at a Switching initiated a movement to actuate the emergency release 40. For this purpose, the same signal could be used as for triggering the locking device. Also, the door drive emergency release actuator 50 could be associated with the lock and utilize the switching of the magnetic force to initiate actuation. Many other embodiments are conceivable.

LIST OF REFERENCE NUMBERS

10

Feuerschutztor

12

Feuerschutzschiebetor

13

open position

14

driving device

16

door guide

17

door opening

18

Feuerschutztorflügel

20

Feuerschutzschiebetorflügel

22

Torführungsschiene

24

closing mechanism

26

door drive

28

Schlepptorantrieb

30

powerhead

32

Motor drive unit

34

guide rail

36

Carriage (example for output element)

38

clutch

40

Emergency release

42

Notentriegelhebel

44

door fitting

46

pushrod

48

Self closing device

50

Torantriebsnotentriegelungsbetätigungseinrichtung

52

takeaway

54

attack

56

counterstop

58

actuating mechanism

60

lever

62

lever mounting

64

Front side area

66

lever arm

68

feather

70

traction drives

72

Bowden

Claims (9)

Closing mechanism (24) for a fire door (10) comprising: a driver (52) for taking a fire protection door leaf (18) into a closed position, a biasing means for biasing the driver (52) in the closed position, a locking device which locks the driver (52) in an open position (13) against the bias of the biasing means and for closing the fire door (10) is releasable in case of fire, and a Torantriebsnotentriegelungsbetätigungseinrichtung (50) which is connectable to a door drive (26) to actuate an emergency release (40) of the door drive (26) in case of fire and / or upon release of the locking device. Locking mechanism (24) according to claim 1,
characterized,
in that the driver (52) is designed in such a way that it is decoupled from the fire protection door leaf (18) in the locked state and / or in the opening direction, but entrains the fire protection gate leaf (18) when moving in the closing direction. Locking mechanism (24) according to one of the preceding claims,
characterized,
in that the door drive emergency unlocking actuating device (50) is designed to be arranged on the fire protection door leaf (18) or on the driver (52) or stationary and has an actuating gear (58) for moving relative movement between the driver (52) and the fire door wings (18) into an actuating movement Actuate the emergency release (40) to convert. Locking mechanism (24) according to claim 3,
characterized,
in that the actuating gear (58) has a lever (60) for picking up the relative movement and a traction means and / or a Bowden cable (72) for transmitting a lever movement to the emergency release (40) of the door drive (26). Locking mechanism (24) according to claim 3 or 4,
characterized,
that the actuating gear (58) is biased into a non-actuated position and by the relative movement between the driver (52) and fire protection gate (18) against the bias in an actuating position is movable. Drive device (14) for a fire protection gate (10), comprising a closing mechanism (24) according to one of the preceding claims and a door drive (26) for automatically driving a fire protection gate leaf (18) with the catch (52) locked by means of the locking device, wherein the gate drive ( 26) has an output element (36) to be connected to the fire protection door leaf (18), a motor drive unit (32) and an emergency release (40) for decoupling the output element from the motor drive unit (32) and
wherein the emergency unlocking actuator (50) is connectable to the emergency release (40) for actuation thereof. Drive device (14) according to claim 6,
characterized,
in that the door drive (26) is designed as a drag drive (28), with a guide rail (34),
a slide (36), which can be moved back and forth by the guide rail (34) as an output element,
a towing drive gear for transmitting a drive movement from the motor drive unit (32) to the carriage (36),
wherein the emergency release (40) comprises a coupling device, by means of which the carriage (36) is connected to the towing drive transmission in normal operation and is decoupled from the towing drive transmission upon actuation of the emergency release (40) to move the carriage (36) independently of the motor drive unit (32 ) along the guide rail (34) to move freely. A fire protection door (10), comprising a fire protection door wing (18), a door frame with a gate guide (16) for the fire protection gate (18) and a closing mechanism (24) according to any one of claims 1 to 5 and / or a drive device (14) according to any of the claims Claims 6 or 7. Fire protection gate (10) according to claim 8, designed as a fire protection sliding door (12), wherein the gate guide (16) is a sliding gate guide for the fire protection gate (20) formed as Feuerschutzschiebetorflügel (20).

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