EP1688164A1 - Fire damper for flow passages - Google Patents
Fire damper for flow passages Download PDFInfo
- Publication number
- EP1688164A1 EP1688164A1 EP05002116A EP05002116A EP1688164A1 EP 1688164 A1 EP1688164 A1 EP 1688164A1 EP 05002116 A EP05002116 A EP 05002116A EP 05002116 A EP05002116 A EP 05002116A EP 1688164 A1 EP1688164 A1 EP 1688164A1
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- EP
- European Patent Office
- Prior art keywords
- flap
- fire protection
- protection closure
- shaft
- spring device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- 238000000034 method Methods 0.000 claims abstract description 8
- 238000000605 extraction Methods 0.000 claims description 4
- 238000009423 ventilation Methods 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000012384 transportation and delivery Methods 0.000 claims description 3
- 238000004378 air conditioning Methods 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 235000014593 oils and fats Nutrition 0.000 claims 1
- 239000007789 gas Substances 0.000 description 12
- 238000007789 sealing Methods 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C2/00—Fire prevention or containment
- A62C2/06—Physical fire-barriers
- A62C2/12—Hinged dampers
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C2/00—Fire prevention or containment
- A62C2/06—Physical fire-barriers
- A62C2/24—Operating or controlling mechanisms
- A62C2/246—Operating or controlling mechanisms having non-mechanical actuators
- A62C2/248—Operating or controlling mechanisms having non-mechanical actuators pneumatic
Definitions
- the invention relates to a fire protection closure for flow channels, in particular ventilation, extraction, delivery channels or wall openings or the like comprising a flap housing with a passage channel which forms a portion of the flow channel in the mounted state of the fire protection closure, one in the flap housing pivotable about a pivot axis mounted flap whose shape and size is adapted to the internal cross-section of the passage channel, and a flap Antrichs adopted to close the flap when needed, and a corresponding method for closing a flow channel.
- Fire dampers are already known, cf. DE 26 22 147 or DE-G 83 22 140. Conventionally, such flaps are spent, if necessary, by a reliable working gear unit, which is in operative connection with an electric motor, from an open position to a closed position.
- the object of the present invention is to propose a drive device which is simpler in construction, in particular contains fewer moving parts.
- a central idea of the present invention is to design the drive device as a spring device and expands an electromagnet, which holds the flap in the current-charged state against an opening exerted by the spring device bias in the open position.
- the energy required for the closing operation of the flap is thus stored in a spring device and only a triggering device in the form of an electromagnet is provided, which triggers the closing operation if necessary.
- the construction used here has a number of advantages. First of all, the construction is much simpler, less expensive and at the same time less susceptible to staining. In addition, when using an electromagnet as a triggering device, the closing of the flap is not dependent on whether in closing request, especially in case of fire, also a sufficient power supply for the conventionally used for closing electric motor is given; Rather, the closing process is automatically triggered when using an electromagnet when the Sttotnzufulit is awakehrvchen.
- the flap does not necessarily have to be driven by exactly one spring device. Rather, two (or more) spring devices, for example one spring device per side of the flow channel, may be provided.
- the spring device is designed as a gas pressure spring.
- a gas spring is here specifically understood an arrangement consisting of a cylinder and a piston, wherein the piston is linearly displaceable in the cylinder and between the cylinder and piston, a gas volume is effective, which is compressible to achieve the invention desired bias.
- the energy required to close the flap is achieved by expansion of the released compressed gas volume.
- spring devices such as mechanical or hydraulic spring devices can be used.
- the electromagnet may optionally be arranged on the flap or on the damper housing, wherein an arrangement on the damper housing is easier to realize and accordingly preferred.
- the flap is positioned in the flap housing so that its pivot axis is arranged in a mounting position in the upper region of the flap housing or the passage channel such that the force of gravity when deactivating the electromagnet caused by the spring device closing the Flap supported.
- the spring device does not have to move the flap at least against gravity.
- the invention can be applied to various types of flaps, namely on the one hand to those flaps which are symmetrical to a central axis and are pivotally mounted about this central axis.
- the invention is preferably applicable to such flaps, which are mounted in the region of one of its end faces pivotable about an eccentric relative to the cross section of the passage channel bearing axis.
- the flap has a rechreckförmige basic shape with four limiting the rectangular shape end faces.
- the flap can also have a different shape, in particular a round or oval basic shape.
- bearing arrangements are arranged on the flap mechanism such that the pivot axis extends outside the passage channel.
- the flap housing forms a niche on a side surface of the Dutchlass channel for receiving the flap in the opened state.
- a niche By forming such a niche, it is possible, at least partially, to swivel the flap out of the flow cross-section of the passage channel in the opened state.
- measures are taken, in particular the niche formed such that in the opened state, the flap is completely swung out of the passage channel.
- niche sealing means which are designed and arranged in such a way that, when the flap is pivoted into the niche, a wall facing away from the passage channel is protected against contamination.
- these niche sealing means may comprise a sealing fleece arranged between the wall of the passage channel and the flap.
- circumferential flue gas sealing means are furthermore provided on the end faces of the flap, which can be designed in particular in the form of a sealing lip in order to ensure a flue gas seal in the closed state of the flap.
- the flap can have a scraper strip at least on one end face facing the passage channel, which scraper strip is designed for the area-free clearing of the passage channel when the flap is pivoted.
- Such Abstreifctieiste may accordingly be formed as a lateral scraper strip at least on the lateral end faces, in which case this lateral scraper strips in the region of the pivot axis over the entire pivot permanently cause free stripe on the passageway.
- one or two frontal wiper strips can also be arranged on or at the end faces distanced distally from the pivot axis.
- the spring device is preferably arranged outside the passage channel so as not to impair the flow cross section.
- the spring device in the area of the flap, on their. Side or front edges attacks.
- the torque required to close the flap is transmitted by the spring device to the shaft or to one or both stub shafts of the flap.
- the shaft or the spring stub associated with the spring device may comprise a lever piece, which is connected to the shaft or the stub shaft in a torsionally-locking manner.
- the lifting piece can also be integrally formed on the shaft or stub shaft.
- the spring device acts in such a way that the force exerted by it on the flap, in particular the torque exerted on the shaft or the stub shaft, is less in the open position of the flap than in the pivoted position of the flap near the closed position.
- This can be achieved by corresponding de rosidonietung the spring device or choice of points of attack of the spring device and on the one hand ensures that the applied by the electromagnet holding force is low and on the other hand for the most critical last section of the closing process, where possibly contaminants are freed, higher frictional forces due any flue gas seals occur, etc., are available.
- the spring means acts so that the applied torque in the open position of the flap is minimal.
- the spring device engages in such a way that the torque is maximum in Schlik ⁇ ein or in a pivoted position near the closed position.
- the closing operation is effected so that the flap is pivoted starting from its open position with increasing angular velocity in the closed position.
- the fire protection closure for flow channels can be used in a wide variety of applications and with a wide variety of objectives, so the fire protection closure according to the invention is particularly suitable for use in one of the following applications.
- the fire protection closure can be used in a first alternative field of use in flow channels of loaded with oils or fats air, especially in commercial kitchens.
- Another application of the fire protection closure according to the invention is in air conditioning.
- a third field of application is flow channels in which materials, in particular particles are pneumatically conveyed.
- the fire protection closure according to the invention can be used when it comes down to the simplest possible, störunan stricten or manufacturing technology favorable structure. Another field of application is given where an intact power supply can not be guaranteed with sufficient safety when closing a request.
- the tirand protection closure comprises an essentially cuboidal flap housing 11, which encloses a rectilinear passageway 14 which is open in each case, and which is cruterized on one side (in FIG. 1 on the upper side) to form a niche 19.
- a flap 12 is pivotally mounted about a relative to the Strötoungsquetterrorism the passage channel 1.4 eccentric pivot axis A and in FIGS. 1 and 2 in the closed position, ie the cross-section of the passage channel 14 shown by blocking.
- the flap 12 is pivotally mounted with stub shafts 16, 17 in the valve body 11 about the pivot axis A.
- a lever member 18 On one of the two stub shafts 16, 17, a lever member 18 is arranged torque-locking, on the other side as a drive device for the flap 12, a gas spring 13 engages.
- the gas spring engages on the one hand at a pivot point 20 on the valve body 11, where it is held pivotable about a sufficient angular range.
- a second articulation point 21 is provided on the stub shaft 16 opposite end of the lever piece, where the other end of the gas spring 13 engages. 1 and 2, the gas spring 13 is shown in its expanded state, ie an inner piston rod 22 is pushed out of an outer cylinder 23 by the enclosed, expanded gas volume and has pivoted over the lever piece 18, the flap 12 in the closed position.
- Fig. 3 the present embodiment of the fire protection closure according to the invention in a schematic sectional view and in Fig. 4 in a schematic front view, each illustrated in the open position.
- the flap 12 is pivoted (here upwards) into the recess 19 formed on the flap housing 11, so that the flap 12 is moved out of the flow cross section of the flow channel as a whole.
- the flap 12 is held by an electromagnet 15 against the bias of the al gas spring spring device formed.
- the flap 12 may be formed of a material which itself causes a magnetic attraction to the electromagnet 15.
- a cooperating with the electromagnet 15 counterpart may be arranged at a corresponding position on the flap 12.
- Intumescent seals are expediently provided on the flap 12 itself or on the side walls of the passage channel 14, which swell in the event of a fire and prevent pivoting of the flap 12 from the closed position with sufficient safety.
- a locking lock can be provided which prevents the flap 12 from pivoting back, in particular when only a smoke gas impairment is to be averted.
Abstract
Description
Die Erfindung betrifft einen Brandschutz-Verschluss für Strömungskanäle, insbesondere Lüftungs-, Abzugs-, Förderkanäle oder Maueröffnungen oder dergleichen umfassend ein Klappengehäuse mit einem Durchlasskanal, der im montierten Zustand des Brandschutz-Verschlusses einen Abschnitt des Strömungskanals bildet, eine im Klappengehäuse um eine Schwenkachse verschwenkbar gelagerte Klappe, deren Form und Größe dem Innenquerschnitt des Durchlasskanals angepasst ist, und eine Antrichseinrichtung für die Klappe, um die Klappe im Bedarfsfall zu schließen sowie ein entsprechendes Verfahren zum Schließen eines Strömungskanals.The invention relates to a fire protection closure for flow channels, in particular ventilation, extraction, delivery channels or wall openings or the like comprising a flap housing with a passage channel which forms a portion of the flow channel in the mounted state of the fire protection closure, one in the flap housing pivotable about a pivot axis mounted flap whose shape and size is adapted to the internal cross-section of the passage channel, and a flap Antrichseinrichtung to close the flap when needed, and a corresponding method for closing a flow channel.
Brandschutzklappen sind bereits bekannt, vgl. DE 26 22 147 oder DE-G 83 22 140. Herkömmlicherweise werden derartige Klappen im Bedarfsfall durch eine zuverlässig arbeitende Getriebeeinheit, die mit einem Elektromotor in Wirkverbindung steht, von einer Offenstellung in eine Schließstellung verbracht.Fire dampers are already known, cf. DE 26 22 147 or DE-G 83 22 140. Conventionally, such flaps are spent, if necessary, by a reliable working gear unit, which is in operative connection with an electric motor, from an open position to a closed position.
Die Aufgabe der vorliegenden Erfindung besteht darin, eine Antriebseinrichtung vorzuschlagen, die einfacher aufgebaut ist, insbesondere weniger bewegliche Teile enthält.The object of the present invention is to propose a drive device which is simpler in construction, in particular contains fewer moving parts.
Diese Aufgabe wird in vorrichtungstechnischer Hinsicht mit einem Brandschutz-Verschluss nach den Merkmalen des Anspruches 1 und in verfahrenstechnischer Hinsicht mit den Merkmalen des Patentanspruchs 12 gelöst. Vorteilhafte Weiterbildungen sind in den Unteransprüchen angegeben.This object is achieved in device-technical terms with a fire protection closure according to the features of claim 1 and in procedural terms with the features of
Ein Kerngedanke der vorliegenden Erfindung besteht darin, die Antriebseinrichtung, als Federeinrichtung auszubilden und weitet einen Elektromagneten vorzuschen, der die Klappe im strombeaufschlagten Zustand entgegen einer von der Federeinrichtung ausgeübten Vorspannung in Offenstellung hält. In Abkehr vom Stand der Technik wird damit die für den Schließvorgang der Klappe benötigte Energie in einer Federeinrichtung gespeichert und lediglich eine Auslöseeinrichtung in Form eines Elektromagneten bereitgestellt, der im Bedarfsfall den Schließvorgang auslöst. In dieser Hinsicht ist es denkbar, anstelle eines Elektromagneten auch eine andere Auslöseeinrichtung vorzuschen.A central idea of the present invention is to design the drive device as a spring device and expands an electromagnet, which holds the flap in the current-charged state against an opening exerted by the spring device bias in the open position. In departure from the prior art, the energy required for the closing operation of the flap is thus stored in a spring device and only a triggering device in the form of an electromagnet is provided, which triggers the closing operation if necessary. In this regard, it is conceivable to provide another triggering device instead of an electromagnet.
Der hier vvtgeschlagene Aufbau weist eine Reihe von Vorteilen auf. Zunächst ist die Konstruktion wesentlich einfacher, kostengünstiger und gleichzeitig auch noch weniger stötunanfälliget zu realisieren. Zusätzlich ist bei Verwendung eines Elektromagneten als Auslöseeinrichtung das Schließen der Klappe nicht davon abhängig, ob bei Schließanforderung, insbesondere im Brandfall, auch eine ausreichende Stromversorgung für den herkömmlicherweise füt das Schließen eingesetzten Elektromotor gegeben ist; vielmehr wird der Schließvorgang bei Verwendung eines Elektromagneten automatisch ausgelöst, wenn die Sttotnzufulit unterhrvchen ist.The construction used here has a number of advantages. First of all, the construction is much simpler, less expensive and at the same time less susceptible to staining. In addition, when using an electromagnet as a triggering device, the closing of the flap is not dependent on whether in closing request, especially in case of fire, also a sufficient power supply for the conventionally used for closing electric motor is given; Rather, the closing process is automatically triggered when using an electromagnet when the Sttotnzufulit is unterhrvchen.
Es versteht sich von selbst, dass erfindungsgemäß die Klappe nicht zwangsläufig durch genau eine Federeinrichtung angetrieben werden muss. Vielmehr können auch zwei (oder mehr) Federeinrichtungen, beispielsweise je eine Federeinrichtung je Seite des Strömungskanals, vorgesehen sein.It goes without saying that according to the invention, the flap does not necessarily have to be driven by exactly one spring device. Rather, two (or more) spring devices, for example one spring device per side of the flow channel, may be provided.
In einer konkret bevorzugten Ausgestaltung ist die Federeinrichtung als Gasdruckfeder ausgebildet. Unter einer Gasdruckfeder wird hier speziell eine Anordnung bestehend aus einem Zylinder und einem Kolben verstanden, wobei der Kolben im Zylinder linear verschieblich gelagert ist und zwischen Zylinder und Kolben ein Gasvolumen wirksam ist, das zur Erzielung der erfindungsgemäß gewünschten Vorspannung komprimierbar ist. Die für das Schließen der Klappe erforderliche Energie wird durch Expansion des komprimierten Gasvoluments freigesetzt. Es versteht sich von selbst, dass aber auch anderweitige Federeinrichtungen, wie beispielsweise mechanische oder hydraulische Federeinrichtungen eingesetzt werden können. Obwohl hier konkret die Expansion einer zusammengedrückten Feder für das Schlicßen der Klappe ausgenutzt wird, kann selbstverständlich auch die Kontraktion einer zuvor expandierten und im expandierten Zustand unter Vorspannung stehender Feder für den Schließvorgang der Klappe ausgenutzt werden.In a specific preferred embodiment, the spring device is designed as a gas pressure spring. Under a gas spring is here specifically understood an arrangement consisting of a cylinder and a piston, wherein the piston is linearly displaceable in the cylinder and between the cylinder and piston, a gas volume is effective, which is compressible to achieve the invention desired bias. The energy required to close the flap is achieved by expansion of the released compressed gas volume. It goes without saying that but also other spring devices, such as mechanical or hydraulic spring devices can be used. Although in concrete terms the expansion of a compressed spring is exploited for the Schlicßen the flap, of course, the contraction of a previously expanded and biased in the expanded state spring for the closing operation of the flap can be exploited.
Der Elektromagnet kann wahlweise an der Klappe odet am Klappengchäuse angeordnet sein, wobei eine Anordnung am Klappengehäuse einfacher zu realisieren ist und dementsprechend bevorzugt wird.The electromagnet may optionally be arranged on the flap or on the damper housing, wherein an arrangement on the damper housing is easier to realize and accordingly preferred.
Nach einem besonderen, vorteilhaften Aspekt der vorliegenden Erfindung ist die Klappe derart im Klappengehäuse positioniert, dass ihre Schwenkachse in einem in Montageposition oberen Bereich des Klappengehäuses bzw. des Durchlasskanals angeordnet ist derart, dass die Schwerkraft bei Deaktivierung des Elektromagneten den durch die Federeinrichtung bewirkten Schließvorgang der Klappe unterstützt. In dieser Anordnung ist sichergestellt, dass die Federeinrichtung die Klappe zumindest nicht entgegen der Schwerkraft bewegen muss.According to a particular advantageous aspect of the present invention, the flap is positioned in the flap housing so that its pivot axis is arranged in a mounting position in the upper region of the flap housing or the passage channel such that the force of gravity when deactivating the electromagnet caused by the spring device closing the Flap supported. In this arrangement, it is ensured that the spring device does not have to move the flap at least against gravity.
Ganz generell ist anzumerken, dass die Erfindung auf verschiedene Arten von Klappen angewandt werden kann, nämlich einerseits auf solche Klappen, die zu einer Mittelachse symmetrisch ausgebildet sind und um diese Mittelachse schwenkbar gelagert sind. Auf der anderen Seite ist die Erfindung bevorzugt auf solche Klappen anwendbar, die im Bereich einer ihrer Stirnseiten schwenkbar um eine bezogen auf den Querschnitt des Durchlasskanals außermittige Lagerachse gelagert sind. Insbesondere weist die Klappe eine rechreckförmige Grundform mit vier die Rechteckform begrenzenden Stirnseiten auf. Alternativ kann die Klappe aber auch eine andere Form, insbesondere eine runde oder ovale Grundform aufweisen.Quite generally, it should be noted that the invention can be applied to various types of flaps, namely on the one hand to those flaps which are symmetrical to a central axis and are pivotally mounted about this central axis. On the other hand, the invention is preferably applicable to such flaps, which are mounted in the region of one of its end faces pivotable about an eccentric relative to the cross section of the passage channel bearing axis. In particular, the flap has a rechreckförmige basic shape with four limiting the rectangular shape end faces. Alternatively, however, the flap can also have a different shape, in particular a round or oval basic shape.
In einer speziell bevorzugen Ausgestaltung sind am Klappengchäuse Lagereinrichtungen derart angeordnet, dass die Schwenkachse außerhalb des Durchlasskanals verläuft.In a particularly preferred embodiment, bearing arrangements are arranged on the flap mechanism such that the pivot axis extends outside the passage channel.
Bevotzugtermaßen bildet das Klappengehäuse an einer Seitenfläche des Dutchlasskanals eine Nische zur Aufnahme der Klappe in geöffnetem Zustand aus. Durch Ausbildung einer derartigen Nische ist es möglich, die Klappe im geöffneten Zustand wenigstens teilweise aus dem Strömungsquerschnitt des Durchlasskanals herauszuschwenken. Besonders bevorzugt sind Maßnahmen getroffen, insbesondere die Nische derart ausgebildet, dass im geöffneten 7ustand dic Klappe komplett aus dem Durchlasskanal hctausgeschwenkt ist.As far as the population is concerned, the flap housing forms a niche on a side surface of the Dutchlass channel for receiving the flap in the opened state. By forming such a niche, it is possible, at least partially, to swivel the flap out of the flow cross-section of the passage channel in the opened state. Particularly preferably, measures are taken, in particular the niche formed such that in the opened state, the flap is completely swung out of the passage channel.
In diesem Zusammenhang kann es auch vutteilhaft scin, Nischenabdichtmittel vorzusehen, die derart ausgebildet und angeordnet sind, dass bei einer in die Nische verschwenkten Klappe eine den Durchlasskanal abgewandte Wand vor Verschmutzungen geschützt ist. In einer konkreten Ausgestaltung können diese Nischenabdichtmittel ein zwischen Wandung des Durchlasskanals und Klappe angeordnetes Dichtvlies umfassen.In this connection, it can also be useful to provide niche sealing means which are designed and arranged in such a way that, when the flap is pivoted into the niche, a wall facing away from the passage channel is protected against contamination. In a specific embodiment, these niche sealing means may comprise a sealing fleece arranged between the wall of the passage channel and the flap.
In einer besonders zweckmäßigen Ausgestaltung sind weiterhin an den Stirnseiten der Klappe umlaufende Rauchgasabdichtmittel vorgesehen, die insbcsondere in Form einer Dichtlippe ausgebildet sein können, um im verschlossenen Zustand der Klappe eine Rauchgasabdichtung zu gewährleisten.In a particularly advantageous embodiment, circumferential flue gas sealing means are furthermore provided on the end faces of the flap, which can be designed in particular in the form of a sealing lip in order to ensure a flue gas seal in the closed state of the flap.
In einer konkreten Weiterbildung kann die Klappe mindestens an einer der Durchlasskanal zugewandten Stirnseite eine Abstreiferleiste aufweisen, die zur bereichsweisen Freistreifung des Durchlasskanals bei Verschwenken der Klappe ausgebildet ist. Eine solche Abstreifctieiste kann dementsprechend als seitliche Abstreiferleiste zumindest an den seitlichen Stirnseiten ausgebildet sein, wobei dann diese seitlichen Abstreiferleisten im Bereich der Schwenkachse über den gesamten Schwenkweg permanent eine Freistreifung am Durchlasskanal bewirken. Alternativ oder zusätzlich können eine bzw. zwei frontale Abstreiferleisten auch an der bzw. an den von der Schwenkachse distal beabstandeten Stirnseiten angeordnet sein.In a specific refinement, the flap can have a scraper strip at least on one end face facing the passage channel, which scraper strip is designed for the area-free clearing of the passage channel when the flap is pivoted. Such Abstreifctieiste may accordingly be formed as a lateral scraper strip at least on the lateral end faces, in which case this lateral scraper strips in the region of the pivot axis over the entire pivot permanently cause free stripe on the passageway. Alternatively or additionally, one or two frontal wiper strips can also be arranged on or at the end faces distanced distally from the pivot axis.
Bevorzugtermaßen ist die Federeinrichtung außerhalb des Durchlasskanals angeordnet, um hiet den Strömungsquerschnitt nicht zu beeinttächtigen.The spring device is preferably arranged outside the passage channel so as not to impair the flow cross section.
Rein prinzipiell ist es denkbat, dass die Federeinrichtung im flächigen Bereich der Klappe, an ihren. Seiten- oder Stirnrändern angreift. Bevorzugt wird das zum Schließen der Klappe notwendige Drehmoment durch die Federeinrichtung aber auf die Welle bzw. auf einen oder beide Wellenstümpfe der Klappe übertragen.In principle, it is denkbat that the spring device in the area of the flap, on their. Side or front edges attacks. Preferably, however, the torque required to close the flap is transmitted by the spring device to the shaft or to one or both stub shafts of the flap.
Hierzu kann die Welle bzw. der der Federeinrichtung zugeordnete Wellenstumpf ein Hebelstück umfassen, welches drehmvtnentschlüssig mit der Welle bzw. dem Wellenstumpf vetbunden ist. In einer möglichcn Ausgestaltung kann das Hebcistück auch einstückig an der Welle bzw. dem Wellenstumpf angeforml sein.For this purpose, the shaft or the spring stub associated with the spring device may comprise a lever piece, which is connected to the shaft or the stub shaft in a torsionally-locking manner. In one possible embodiment, the lifting piece can also be integrally formed on the shaft or stub shaft.
Nach einem besonders bevorzugten A.spekt der vorliegenden Erfindung greift die Federeinrichtung so an, dass die von iht ausgeübte Kraft auf die Klappe, insbesondere das auf die Welle bzw. den Wellenstumpf ausgeübte Drehmoment, in Offenstellung der Klappe geringer ist als in verschwenkter Position der Klappe nahe der Schließstellung. Dies kann durch entsprechen de rosidonietung der Federeinrichtung bzw. Wahl der Angriffspunkte der Federeinrichtung erzielt werden und gewährleistet einerseits, dass die vom Elektromagneten aufzubringende Haltekraft gering ist und andererseits für den besonders kritischen letzten Abschnitt des Schließvorgangs, wo ggf. Verschmutzungen freizustreifen sind, höhere Reibungskräfte aufgrund etwaiger Rauchgasabdichtungen auftreten, etc., zur Verfügung stehen.According to a particularly preferred aspect of the present invention, the spring device acts in such a way that the force exerted by it on the flap, in particular the torque exerted on the shaft or the stub shaft, is less in the open position of the flap than in the pivoted position of the flap near the closed position. This can be achieved by corresponding de rosidonietung the spring device or choice of points of attack of the spring device and on the one hand ensures that the applied by the electromagnet holding force is low and on the other hand for the most critical last section of the closing process, where possibly contaminants are freed, higher frictional forces due any flue gas seals occur, etc., are available.
Nach einem speziellen Aspekt der vorliegenden Erfindung greift die Federeinrichtung so an, dass das ausgeübte Drehmoment in Offenstellung der Klappe minimal ist.According to a special aspect of the present invention, the spring means acts so that the applied torque in the open position of the flap is minimal.
Nach einem weiteten bevorzugten Aspekt der vorliegenden Erfindung greift die Federeinrichtung so an, dass das Drehmoment in Schlicβstellung bzw. in einer verschwenkten Position nahe der Schließstellung maximal ist.According to a broadly preferred aspect of the present invention, the spring device engages in such a way that the torque is maximum in Schlikβstellung or in a pivoted position near the closed position.
Das erfindungsgemäße Verfahren zum Schließen eines Strömungskanals, insbesondere eines Lüftungs-, Abzugs-, Förderkanals oder einer Maueröffnung mittels eines Brandschutz-Verschlusses umfassend ein Klappengehäuse mit einem Durchlasskanal, der im montierten Zustand des Brandschutz-Verschlusses einen Abschnitt des Strömungskanals bildet, eine im Klappengehäuse um eine Schwenkachse verschwenkbar gelagerte Klappe, deren Form und Größe dem Innenquerschnitt des Durchlasskanals angepasst ist und eine Antriebseinrichtung für die Klappe, um die Klappe im Bedarfsfall zu schließen, sieht vor:
- Halten der Klappe mittels eines Elektromagneten im normalen Betrieb in einer Offenstellung,
- Deaktivierung des Elektromagneten bei einer Schließanforderung, insbcsondere im Brandfall und
- Verschwenken der Klappe mittels einer unter Vorspannung stehenden Federeinrichtung von der Offenstellung in eine Schließstellung.
- Holding the flap by means of an electromagnet in normal operation in an open position,
- Deactivation of the electromagnet during a closing request, in particular in case of fire and
- Swiveling the flap by means of a biased spring means from the open position to a closed position.
Nach einem bevorzugten Aspekt des vorliegenden Verfahrens wird der Schließvorgang so bewirkt, dass die Klappe ausgehend von ihrer Offenstellung mit zunehmender Winkelgeschwindigkeit in die Schließstellung verschwenkt wird.According to a preferred aspect of the present method, the closing operation is effected so that the flap is pivoted starting from its open position with increasing angular velocity in the closed position.
Obwohl der Brandschutz-Verschluss für Strömungskanäle in den unterschiedlichsten Anwendungen und mit den unterschiedlichsten Zielsetzungen eingesetzt werden kann, so ist der erfindungsgemäße Brandschutz-Verschluss bei Verwendung in einem der nachfolgenden Anwendungsfälle besonders geeignet. Der Brandschutz-Verschluss kann in einem ersten alternativen Einsatzgebiet in Strömungskanälen von mit Ölen oder Fetten belasteter Luft, insbesondere in Großküchen eingesetzt werden.Although the fire protection closure for flow channels can be used in a wide variety of applications and with a wide variety of objectives, so the fire protection closure according to the invention is particularly suitable for use in one of the following applications. The fire protection closure can be used in a first alternative field of use in flow channels of loaded with oils or fats air, especially in commercial kitchens.
Ein weiteres Einsatzgebiet des erfindungsgemäßen Brandschutz-Verschlusses liegt in der Klimatechnik.Another application of the fire protection closure according to the invention is in air conditioning.
Ein drittes Anwendungsfeld sind Strömungskanäle, in denen Materialien, insbesondere Partikel pneumatisch gefördert werden.A third field of application is flow channels in which materials, in particular particles are pneumatically conveyed.
Generell ist der erfindungsgemäße Brandschutz-Verschluss einsetzbar, wenn es auf einen möglichst einfachen, störunanfälligen bzw. herstellungstechnisch günstigen Aufbau ankommt. Ein weiteres Anwendungsfeld ist dort gegeben, wo bei einer Schließanforderung eine intakte Stromversorgung nicht mit ausreichender Sicherheit gewährleistet werden kann.In general, the fire protection closure according to the invention can be used when it comes down to the simplest possible, störunanfälligen or manufacturing technology favorable structure. Another field of application is given where an intact power supply can not be guaranteed with sufficient safety when closing a request.
Die Erfindung wird nachstehend auch hinsichtlich weiterer Merkmale und Vorteile anhand der Beschreibung von Ausführungsbeispielen und unter Bezugnahme auf die nachstehenden Zeichnungen nähet erläutert.The invention will be explained below with regard to further features and advantages with reference to the description of exemplary embodiments and with reference to the following drawings.
- Fig. 1Fig. 1
- eine Ausführungsform eines erfindungsgemäßen Branschutz-Verschlusses in einer schematischen Schnittansicht in Schließstellungan embodiment of a Branschutz-closure according to the invention in a schematic sectional view in the closed position
- Fig. 2Fig. 2
- eine schematische Frontansicht des Brandschutz-Verschlusses nach Fig. 1, ebenfalls in Schließstellunga schematic front view of the fire protection closure of FIG. 1, also in the closed position
- Fig. 3Fig. 3
- die Ausführungsform nach Fig. 1 in einer schematischen Schnittansicht in Offenstellungthe embodiment of FIG. 1 in a schematic sectional view in the open position
- Fig. 4Fig. 4
- eine schematische Frontansicht des Brandschutz-Verschlusses nach Fig. 1 in Offenstellunga schematic front view of the fire protection closure of FIG. 1 in the open position
In Fig. 1 ist eine Ausführungsform des erfindungsgemäßen Brandschutz-Verschlusses in einer schematischen Schnittansicht sowie in Fig. 2 in einer schematischen Frontansicht, jeweils in Schließstellung dargestellt. Der tirandschutz-Verschluss umfasst hier ein im Wesentlichen quaderförmiges Klappengehäuse 11, das einen geradlinig verlaufenden, endscititg jeweils offenen Durchlasskanal 14 begrcnzt und an einer Seite (in Fig. 1 an der oberen Seite) unter Ausbildung einer Nische 19 crweicert ist. Im Klappenfichäuse 11 ist eine Klappe 12 um eine bezogen auf den Strötoungsquetschnitt des Durchlasskanals 1.4 außermittige Schwenkachse A verschwenkbar gelagert und in den Fig. 1 und 2 in Schließstellung, d.h. den Querschnitt des Durch lasskanals 14 versperrend dargestellt. Die Klappe 12 ist mit Wellenstümpfen 16, 17 im Klappengchäuse 11 um die Schwenkachse A verschwenkbar gelagert. An einem der beiden Wellenstümpfe 16, 17 ist ein Hebelstück 18 drehmomentschlüssig angeordnet, an dessen anderer Seite als Antriebseinrichtung für die Klappe 12 eine Gasdruckfeder 13 angreift. Die Gasdruckfeder greift einerseits an einem Anlenkpunkt 20 am Klappengehäuse 11 an, wo sie um einen ausreichenden Winkelbereich verschwenkbar gehalten ist. Ein zweiter Anlenkpunkt 21 ist am dem Wellenstumpf 16 abgewandten Ende des Hebelstücks vorgesehen, wo das andere Ende der Gasdruckfeder 13 angreift. In den Fig. 1 und 2 ist die Gasdruckfeder 13 in ihrem expandierten Zustand dargestellt, d.h. eine innere Kolbenstange 22 ist aus einem äußeren Zylinder 23 durch das eingeschlossene, expandierte Gasvolumen herausgeschoben und hat so über das Hebelstück 18 die Klappe 12 in Schließstellung verschwenkt.In Fig. 1, an embodiment of the fire protection closure according to the invention in a schematic sectional view and in Fig. 2 in a schematic front view, each shown in the closed position. Of the Here, the tirand protection closure comprises an essentially cuboidal flap housing 11, which encloses a
In Fig. 3 ist die vorliegende Ausführungsform des erfindungsgemäßen Brandschutz-Verschlusses in einer schematischen Schnittansicht und in Fig. 4 in einer schematischen Frontansicht, jeweils in Offenstellung veranschaulicht. Die Klappe 12 ist (hier nach oben) in die am Klappengehäuse 11 ausgebildete Nische 19 verschwenkt, so dass die Klappe 12 insgesamt aus dem Strömungsquerschnitt des strömungskanals herausbewegt ist. In dieser Position wird die Klappe 12 durch einen Elektromagneten 15 entgegen der Vorspannung der al Gasdruckfeder ausgebildeten Federeinrichtung gehalten. Hierzu kann die Klappe 12 aus einem Material gebildet sein, das selbst eine magnetische Anziehungskraft hin zum Elektromagneten 15 bewirkt.In Fig. 3, the present embodiment of the fire protection closure according to the invention in a schematic sectional view and in Fig. 4 in a schematic front view, each illustrated in the open position. The
Alternativ oder zusätzlich kann ein mit dem Elektromagneten 15 zusammenwirkendes Gegenstück (nicht gezeigt) an entsprechender Position an der Klappe 12 angeordnet sein. An der Klappe 12 selbst / oder an den Seitenwänden des Durchlasskanals 14 sind zweckmäßigerweise Intumeszenzabdichtungen (nicht gezeigt) vorgeschen, die im Brandfall aufquellen und ein Zurückschwenken der Klappe 12 aus der Schließstellung mit ausreichender Sicherheit vermeiden. Alternativ oder zusätzlich kann auch ein Arretierschloss vorgesehen sein, das ein Zurückschwenken der Klappe 12 verhindert, insbesondere dann, wenn lediglich eine Rauchgasbeeinträchtigung abgewendet werden soll.Alternatively or additionally, a cooperating with the
- 1111
- Klappengehäuseflap housing
- 1212
- Klappeflap
- 1313
- Federeinrichtung, GasdruckfederSpring device, gas spring
- 1414
- DurchlasskanalPassageway
- 1515
- Elektromagnetelectromagnet
- 16, 1716, 17
- Wellenstümpfeshaft stubs
- 1818
- Hebelstücklever piece
- 1919
- Nischeniche
- 2020
- erster Anlenkpunktfirst point of articulation
- 2121
- zweiter Anlenkpunktsecond articulation point
- 2222
- innere Kolbenstangeinner piston rod
- 2323
- äußerer Zylinderouter cylinder
Claims (16)
dass die Antriebseinrichtung als Federeinrichtung (13) ausgebildet ist, und dass weiter ein Elektromagnet (15) vorgesehen ist, der die Klappe (12) im strombeaufschlagten Zustand entgegen einer von der Federeinrichtung (13) ausgeübten Vorspannung in Offenstellung hält.Fire protection closure for flow channels, in particular ventilation; -, extraction, delivery channels or wall openings or the like comprising
in that the drive device is designed as a spring device (13), and in that an electromagnet (15) is provided which holds the flap (12) in the open state against a bias exerted by the spring device (13) in the current-energized state.
dadurch gekennzeichnet,
dass die Federeinrichtung als Gasdruckfeder (13) ausgebildet ist.Fire protection closure according to claim 1,
characterized,
that the spring device is designed as a gas pressure spring (13).
dadurch gekennzeichnet,
dass der Elektromagnet (15) am Klappengehäuse (11) angeordnet ist.Fire protection closure according to claim 1 or 2,
characterized,
in that the electromagnet (15) is arranged on the flap housing (11).
dadurch gekennzeichnet,
dass die Klappe (12) derart im Klappcngehäuse (11) gelagert ist, dass die Schwenkachse (A) der Klappe (12) in einem in Montageposition oberen Bereich des Klappengehäuses (11) bzw. des Durchlasskanals (14) angeordnet ist und so die Schwerkraft bei Deaktivierung des Elektromagneten (15) den durch die Federeinrichtung (13) bewirkten Schließvorgang der Klappe (12) unterstüzt.Fire protection closure according to one of claims 1 to 3,
characterized,
in that the flap (12) is mounted in the folding housing (11) in such a way that the pivot axis (A) of the flap (12) is arranged in an upper position of the flap housing (11) or of the passage channel (14) in the assembly position and thus the force of gravity when deactivating the electromagnet (15) the by the spring means (13) effected closing operation of the flap (12) supports.
dadurch gekennzeichnet,
dass die Schwenkachse (A) durch eine durchgehende Welle oder zwei seitliche Wellenstümpfe (16, 17), über die die Klappe (12) im Klappengehäuse gelagert ist bzw. gelagert sind, definiert ist, wobei die Federein richtung (13) an der Welle bzw. an einem der WellenStümpfe (16, 17) angreift.Fire protection closure according to one of claims 1 to 4,
characterized,
that the pivot axis (A) by a continuous shaft or two lateral stub shafts (16, 17), via which the flap (12) is mounted or stored in the valve body, is defined, wherein the Federein direction (13) on the shaft or at one of the shaft stumps (16, 17) attacks.
dadurch gekennzeichnet,
dass die Federeinrichtung (13) außerhalb, des Durchlasskanals (14) angeordnet ist.Lirandschutz Vctschluss according to claim 5,
characterized,
in that the spring device (13) is arranged outside the passage channel (14).
dadurch gekennzeichnet,
dass die Federeinrichtung (13) zwischen der Welle bzw. den Wellenstümpfen (16, 17) und dem Klappengehäuse (11) angreift.Fire protection closure according to claim 5 or 6,
characterized,
in that the spring device (13) acts between the shaft or the stub shafts (16, 17) and the flap housing (11).
dadurch gekennzeichnet,
dass an der Welle bzw. an dem der Federeinrichtung (13) zugeordneten Wellenstumpf (16, 17) ein Hebelstück (18) drehmomentschlüssig, insbesondere einstückig angeformt, angcordnet ist, an dem die Federeinrichtung (13) angreift.Fire protection closure according to one of claims 5 to 7,
characterized,
in that a lever piece (18) is connected to the shaft or spring stub (16, 17) associated with the spring device (13) in a torque-locking manner, in particular in one piece, on which the spring device (13) engages.
dadurch gekennzeichnet,
dass die Federeinrichtung (13) so angreift, dass das von ihr auf die Welle bzw. den Wellenstumpf ausgeübte Drehmoment in Offenstellung der Klappe (12) geringer als in einer verschwenkten Position nahe der Schließstellung der Klappe (12) ist.Fire protection closure according to one of claims 1 to 8,
characterized,
in that the spring device (13) acts in such a way that the torque exerted by it on the shaft or the stub shaft in the open position of the Flap (12) is less than in a pivoted position near the closed position of the flap (12).
dadurch gekennzeichnet,
dass das durch die Federeinrichtung (13) auf die Welle bzw. den Wellenstumpf (16, 17) ausgeübte Drehmoment in Offenstellung der Klappe (12) minimal ist.Fire protection closure according to claim 9,
characterized,
that the torque exerted by the spring device (13) on the shaft or stub shaft (16, 17) in the open position of the flap (12) is minimal.
dadurch gekennzeichnet,
dass das durch die Federeinrichtung (13) auf die Welle bzw. den Wellenstumpf (16, 17) ausgeübte Drehmoment in Schließstellung der Klappe bzw. in einer verschwenkten Position nahe der Schließstellung der Klappe (12) maximal ist.Fire protection closure according to claim 9 or 10,
characterized,
in that the torque exerted by the spring device (13) on the shaft or stub shaft (16, 17) is maximum in the closed position of the flap or in a pivoted position close to the closed position of the flap (12).
dadurch gekennzeichnet,
dass die Klappe (12) mittels eines Elektromagneten (15) im normalen Betrieb in einer Offenstellung gehalten wird und dass bei einer. Schließanforderung, insbesondere im Brandfall, der Elektromagnet (15) deaktiviert wird und die Klappe (12) mit einer unter Vorspannung stehenden Federeinrichtung (13) in Schließstellung gebracht wird.Method for closing a flow channel, in particular a ventilation, extraction, conveying channel or wall opening, by means of a fire protection closure comprising a flap housing (11) with a passage channel (14) forming a portion of the flow channel in the installed state of the fire protection closure, a flap (12) pivotally mounted in the flap housing (11) about a pivot axis (A) and adapted to the internal cross section of the passageway (14), and drive means for the flap (12) to engage the flap (12) in FIG If necessary, close
characterized,
that the flap (12) by means of an electromagnet (15) is held in an open position during normal operation and that at a. Closing request, especially in case of fire, the solenoid (15) is deactivated and the flap (12) with a biased spring means (13) is brought into the closed position.
dadurch gekennzeichnet,
dass der Schließvorgang so bewitkt wird, dass die Klappe (12) ausgehend von ihrer Offenstellung mit zunehmender Winkelgeschwindigkeit in die Schließstellung verschwenkt wird.Method according to claim 12,
characterized,
in that the closing operation is carried out in such a way that the flap (12), starting from its open position, is pivoted into the closed position with increasing angular velocity.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES05002116T ES2317090T3 (en) | 2005-02-02 | 2005-02-02 | FIREWOOD COMPUTER FOR PASSAGE DUCTS. |
| PL05002116T PL1688164T3 (en) | 2005-02-02 | 2005-02-02 | Fire damper for flow passages |
| AT05002116T ATE413214T1 (en) | 2005-02-02 | 2005-02-02 | FIRE PROTECTION CLOSURE FOR FLOW CHANNELS |
| DE502005005873T DE502005005873D1 (en) | 2005-02-02 | 2005-02-02 | Fire protection closure for flow channels |
| EP05002116A EP1688164B1 (en) | 2005-02-02 | 2005-02-02 | Fire damper for flow passages |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP05002116A EP1688164B1 (en) | 2005-02-02 | 2005-02-02 | Fire damper for flow passages |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1688164A1 true EP1688164A1 (en) | 2006-08-09 |
| EP1688164B1 EP1688164B1 (en) | 2008-11-05 |
Family
ID=34933555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP05002116A Active EP1688164B1 (en) | 2005-02-02 | 2005-02-02 | Fire damper for flow passages |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1688164B1 (en) |
| AT (1) | ATE413214T1 (en) |
| DE (1) | DE502005005873D1 (en) |
| ES (1) | ES2317090T3 (en) |
| PL (1) | PL1688164T3 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009019917A1 (en) * | 2009-05-04 | 2010-11-25 | Lampertz Gmbh & Co. Kg | Security area is made of multiple composite wall modules and door module, where fire damper is swiveled around rotating axis against force of closing spring arrangement in normal condition |
| DE102010056392A1 (en) * | 2010-12-28 | 2012-06-28 | Gert Bartholomäus | Fire protection flap for fire protection device, is placed in housing one-sided around hinge bearing, where housing seals in closing position by sealing together with sealing surface |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2320798A1 (en) * | 1972-09-27 | 1974-04-11 | Securiton Ag | SYSTEM FOR AUTOMATIC OPENING OF STAIRWINDOWS IN THE EVENT OF SMOKE DEVELOPMENT |
| DE2259656A1 (en) * | 1972-12-01 | 1974-06-20 | Nordluft Norddeutsche Ges Fuer | WITH A PIVOTING FIRE PROTECTION FLAP EQUIPPED WITH A CLOSING FORCE FOR VENTILATION SYSTEMS |
| FR2341732A1 (en) * | 1976-02-20 | 1977-09-16 | Apb Sa | Anti-blast flap for inlet of ventilation system - has flap held by solenoid and released by time switch to close automatically via gravity hinge with horizontal axis |
| GB2088944A (en) * | 1980-12-06 | 1982-06-16 | Bjp Ventilation Developments L | Louvred Closure with Automatic Drop Rod Operating Mechanism |
| EP0270297A1 (en) * | 1986-11-25 | 1988-06-08 | Colt International Limited | Improvements relating to ventilators |
| GB2208427A (en) * | 1987-08-03 | 1989-03-30 | Dufaylite Dev Ltd | Smoke diverter valve in air duct |
| DE3932868A1 (en) * | 1988-10-05 | 1990-04-12 | Janka Zrl Radotin Statni Podni | AIr conduit safety shutter - comprises rectangular plate hinging at downstream end into recess flush with wall |
-
2005
- 2005-02-02 AT AT05002116T patent/ATE413214T1/en active
- 2005-02-02 EP EP05002116A patent/EP1688164B1/en active Active
- 2005-02-02 ES ES05002116T patent/ES2317090T3/en active Active
- 2005-02-02 PL PL05002116T patent/PL1688164T3/en unknown
- 2005-02-02 DE DE502005005873T patent/DE502005005873D1/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2320798A1 (en) * | 1972-09-27 | 1974-04-11 | Securiton Ag | SYSTEM FOR AUTOMATIC OPENING OF STAIRWINDOWS IN THE EVENT OF SMOKE DEVELOPMENT |
| DE2259656A1 (en) * | 1972-12-01 | 1974-06-20 | Nordluft Norddeutsche Ges Fuer | WITH A PIVOTING FIRE PROTECTION FLAP EQUIPPED WITH A CLOSING FORCE FOR VENTILATION SYSTEMS |
| FR2341732A1 (en) * | 1976-02-20 | 1977-09-16 | Apb Sa | Anti-blast flap for inlet of ventilation system - has flap held by solenoid and released by time switch to close automatically via gravity hinge with horizontal axis |
| GB2088944A (en) * | 1980-12-06 | 1982-06-16 | Bjp Ventilation Developments L | Louvred Closure with Automatic Drop Rod Operating Mechanism |
| EP0270297A1 (en) * | 1986-11-25 | 1988-06-08 | Colt International Limited | Improvements relating to ventilators |
| GB2208427A (en) * | 1987-08-03 | 1989-03-30 | Dufaylite Dev Ltd | Smoke diverter valve in air duct |
| DE3932868A1 (en) * | 1988-10-05 | 1990-04-12 | Janka Zrl Radotin Statni Podni | AIr conduit safety shutter - comprises rectangular plate hinging at downstream end into recess flush with wall |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009019917A1 (en) * | 2009-05-04 | 2010-11-25 | Lampertz Gmbh & Co. Kg | Security area is made of multiple composite wall modules and door module, where fire damper is swiveled around rotating axis against force of closing spring arrangement in normal condition |
| DE102010056392A1 (en) * | 2010-12-28 | 2012-06-28 | Gert Bartholomäus | Fire protection flap for fire protection device, is placed in housing one-sided around hinge bearing, where housing seals in closing position by sealing together with sealing surface |
| DE102010056392B4 (en) * | 2010-12-28 | 2015-02-19 | Gert Bartholomäus | One-sided hinged fire damper with improved sealing effect |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1688164B1 (en) | 2008-11-05 |
| PL1688164T3 (en) | 2009-04-30 |
| ES2317090T3 (en) | 2009-04-16 |
| ATE413214T1 (en) | 2008-11-15 |
| DE502005005873D1 (en) | 2008-12-18 |
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