EP3593866A1 - Fire and/or smoke safety device - Google Patents
Fire and/or smoke safety device Download PDFInfo
- Publication number
- EP3593866A1 EP3593866A1 EP19184184.0A EP19184184A EP3593866A1 EP 3593866 A1 EP3593866 A1 EP 3593866A1 EP 19184184 A EP19184184 A EP 19184184A EP 3593866 A1 EP3593866 A1 EP 3593866A1
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- EP
- European Patent Office
- Prior art keywords
- fire
- winding shaft
- smoke
- curtain
- support element
- 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.)
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C2/00—Fire prevention or containment
- A62C2/06—Physical fire-barriers
- A62C2/10—Fire-proof curtains
Definitions
- the invention relates to a fire and / or smoke protection curtain with (a) a fire protection element, (b) a winding shaft on which the fire protection element can be wound up, and (c) a bearing device which has at least one set of bearing elements for applying a supporting force to the Has winding shaft.
- Such fire and / or smoke curtains such as those from the DE 10 2011 016 266 A1 and the DE 196 10 532 A1 are used to counter the spread of fire through an opening formed in particular in the wall of a building.
- These openings can have significant widths, for example more than 5.5 m. In this case, the winding shaft may bend.
- the fire protection textile is usually sensitive to walking loads. It has therefore been proposed to store the winding shaft with the wound fire protection textile in a floating manner, that is to say in a tub, so that the roll of fire protection textile and winding shaft lies flat on the tub.
- this has the disadvantage that a high level of wear occurs at the seams between individual segments of the fire protection textile. This can be counteracted with anti-friction linings, but the application of these anti-friction linings is complex.
- the fire protection element safely comes into its closed position, in which it closes the opening.
- the fire protection element runs vertically in its closed position.
- the invention solves the problem by a generic fire and / or smoke protection curtain, in which the bearing device has at least one flexible support to which the bearing elements are attached.
- a fire or smoke protection curtain is understood in particular to be any device which is designed to prevent or sustainably prevent the spread of fires and / or smoke or to prevent smoke produced by a fire from spreading.
- the fire or smoke protection device is designed to withstand a fire for at least 30 minutes, in particular at least 60 minutes, preferably for at least 90 minutes.
- the classification is carried out in particular according to DIN EN 13501-2 and 3.
- a fire or smoke protection device therefore differs fundamentally from devices that are only suitable for closing openings or are used for other purposes.
- the fire or smoke protection curtain is preferably designed for reversible, in particular repeated, closing and opening. In other words, the fire or smoke protection curtain can be closed and opened several times, in particular at least one hundred times.
- the fire protection element preferably consists at least partially, in particular completely, of fire protection textile.
- a fire protection textile is understood to mean, in particular, a fabric, scrim or knitted fabric that is non-flammable and withstands temperature loads for a sufficiently long time to allow flame and / or smoke to pass through, in particular for at least 30 minutes in accordance with EN 1634-3 and / or DIN EN Resist 12101-1.
- the advantage of using fire protection textiles is the low manufacturing effort. It is thus possible to connect the fire protection element from one, two, three or more flat fire protection textile pieces by connecting, in particular sewing, manufacture.
- the fire or smoke protection curtain has a heat absorption that is greater than 0 kJ / m 2 .
- the fire or smoke curtain absorbs heat in the event of a fire and - unlike blinds or insect screens, for example - does not give off any heat.
- the fire or smoke curtain is preferably non-flammable.
- the activation temperature is understood in particular to be the lowest temperature for which it applies that after an hour at this temperature over 90 percent by mass of the cooling material has reacted with the absorption of heat. It is expedient if the cooling material reacts above the activation temperature, for example by releasing water of crystallization and / or by splitting off water. Water has a high heat of evaporation, so that a lot of heat is absorbed during evaporation.
- the activation temperature is preferably at least 90 ° C and / or at most 250 ° C.
- the cooling material is understood to mean in particular a material which releases water and / or carbon dioxide by an endothermic reaction above the activation temperature.
- the cooling material can be a pure substance or a mixture.
- the cooling material at least partially contains water of crystallization.
- the cooling material can contain metal hydrate and / or carbonate and / or a hydroxide compound.
- the fire protection element is preferably flexible.
- the feature that the fire protection element is flexible means that it is flexible. It should be pointed out that a flexible fire protection element does not necessarily have to be stretchable.
- the flexible fire protection element is preferably not stretchable, in particular not elastic, and has a spring constant that is at least half as large as that of steel.
- An advantage of the fire and / or smoke protection curtain according to the invention is that the bearing elements support the roll of fire protection element and winding shafts, so that the winding shaft sags less. This leads to a lower flex load on the fire protection element and thus to a longer service life.
- the bearing elements are preferably bearing rollers which are rotatably mounted on the flexible carrier about respective axes of rotation. If the winding from the winding shaft and fire protection element rotates, the bearing rollers that come into contact with the winding also rotate. This rotary movement leads to very low tangential forces on the winding. As a result, the flexing loads and the shear stress are small, which increases the life of the fire protection element.
- the bearing elements can also be sliding elements on which the fire protection element slides.
- the sliding elements can be made of polytetrafluoroethylene or another plastic which has a particularly small coefficient of friction r of preferably r ⁇ 0.2, in particular r 0,1 0.1, with the fire protection element.
- bearing elements in particular bearing rollers.
- the number of bearing elements is preferably less than 50.
- the flexible carrier preferably has (a) a first support element which has a first first support element end and a second first support element end, and (b) a second support element which has a first free second support element end and a second free second support element end, owns on.
- the first support element is preferably a first chain and the second support element is a second chain.
- the flexible carrier therefore has a first chain and a second chain, the bearing rollers being attached to the first chain with a first roller end and being attached to the second chain with a second roller end.
- a chain is understood to be a sequence of chain links of the same structure, adjacent links being movable, pivotable, relative to one another. The limbs themselves are rigid. This makes a chain flexible, but not elastic.
- bearing rollers are indirectly attached to the flexible carrier. It is also possible that the bearing rollers are attached directly to the flexible carrier.
- the flexible carrier is preferably fastened to a first carrier end, in particular to a stationary receptacle, and resiliently mounted to a second carrier end, in particular relative to the stationary receptacle.
- the carrier is designed such that a change in a winding diameter of the winding leads to the second carrier end moving in such a way that this flexible carrier adapts to the changing winding diameter.
- This feature is understood in particular to mean that the carrier is designed in such a way that a curvature of the flexible carrier increases as the diameter of the winding becomes smaller, and that the curvature of the flexible carrier decreases as the diameter of the winding increases.
- the curvature is in particular the reciprocal of the radius of the compensation circle through the support points in which the winding rests on the bearing elements.
- the bearing device is designed such that the winding rests on at least three bearing elements at least when the fire protection element is wound up.
- the bearing device preferably comprises a spring which is connected to the second support end of the flexible support for resilient mounting of the second support end and which executes a combined bending-torsional movement when the flexible support is loaded.
- the spring is not one Coil spring. Such a spring can be manufactured simply, easily and in a space-saving manner.
- the spring is designed to perform a first bending movement with respect to a first bending axis and a second bending movement with respect to a second bending axis, which runs transverse to the first bending axis. It is preferred, but not necessary, that the spring is designed to carry out a third bending movement with respect to a third bending axis, which runs along the, in particular parallel to, the first bending axis.
- the spring is functionally symmetrical. This is understood in particular to mean that the spring has a mirror plane and deforms in a mirror-symmetrical manner when a force is applied to the flexible carrier. It is of course possible that the resulting deformation is not mirror-symmetrical in the mathematical sense, but in the technical sense, that is, that the type of movement is the same, although the extent of the movement can be different.
- the spring preferably has a first torsion section which extends along an axis of rotation of the winding shaft, a second torsion section which also extends along the axis of rotation of the winding shaft and a connecting section which connects the first torsion section to the second torsion section.
- the torsion sections are preferably elongated, that is to say that they have an aspect ratio of at least three.
- the spring carries out a combined bending-torsional movement or three bending movements with respect to the above-mentioned three bending axes, which has been found to be particularly favorable.
- the fire protection element can preferably be brought into a bearing arrangement in which it is wound on the winding shaft and in a protective arrangement in which it is unwound from the winding shaft and closes an opening.
- the winding shaft is preferably fixed in place on at least one winding shaft end, preferably on both winding shaft ends. This prevents the winding shaft from drifting during up and down running, that is to say when the fire protection element is brought out of the protective arrangement into the bearing arrangement or out of the bearing arrangement into the protective arrangement.
- the winding shaft is preferably at least 7 meters long. So far, only 6 meters are possible with the winding shafts fixed at both ends, otherwise the sag of the winding shaft will be too large. Thanks to the new type of storage, wider winding shafts can also be stored.
- the fire protection element preferably has a first segment and a second segment made of fire protection textile, which are connected by means of a vertically running seam, the fire protection element being mounted in the area of the seam, in particular on the seam.
- a vertically running seam is understood to mean in particular a seam that runs vertically in the technical sense, that is to say that an angular deviation from the vertical of, for example, 3 ° can be tolerated. Such storage in the area of the seam is particularly gentle on the fire protection element.
- the winding shaft is arranged such that the detachment point, that is the point along the circumference of the winding in which the fire protection element separates from the winding, is in an angular position which is at least 22.5 ° from the 12 o'clock position is removed.
- the fire protection element runs downwards at an angle of at least 22.5 ° to the vertical at this point.
- the invention is particularly useful compared to conventional systems.
- the fire protection element preferably extends vertically in its protective arrangement. In other words, an angle with the vertical is at most 5 °.
- the bearing device has a holder which engages around the winding shaft from above and has a free holder end. It is favorable if the first carrier end of the flexible carrier is attached to the free holder end. If the flexible carrier has a first and a second chain, which is possible but not necessary is, both chains are attached with their first free end to the first carrier end. The respective second free ends of the two chains are preferably also attached to the holder, but this is not necessary.
- the fire protection textile can be gently unwound downwards.
- the free holder end is preferably in the half space on the outlet side.
- the half-space on the outlet side is limited by the vertical plane through the axis of rotation of the winding shaft and contains the free end of the fire protection element.
- the downstream half-space is also bounded by this vertical plane, but from the other side. Both half-spaces complement each other to form the entire room.
- the bearing device has a first arm, which engages around the winding shaft from above and has a free first arm end, and a second arm, which engages around the winding shaft from above and has a free second arm end.
- first end of the first support element of the first support element is attached to the first free arm end and the first free end of the second support element of the second support element is attached to the second free arm end.
- the fire and / or smoke protection curtain preferably has a mounting part for mounting the fire and / or smoke protection curtain on a wall of a building, with more bearing elements in a mounting part-side half space which extends from the vertical plane through the center point of the winding shaft to the mounting part are arranged as in a half space remote from the mounting part, which extends from the vertical plane away from the mounting part.
- the two half-spaces make up the entire room.
- the fire and / or smoke protection curtain has a second storage device which is arranged at a distance from the first storage device. It is possible, but not necessary, that the fire and / or smoke protection curtain has a third storage device, a fourth storage device or more storage devices.
- the bearing devices can, for example, be arranged equidistantly. It is then possible to store very wide winding shafts with a width of more than 10 meters, for example.
- the at least one bearing device is arranged such that a center point of the winding shaft is above the bearing device below the center point of the winding shaft at its first free end and / or at its second free end.
- the winding shaft has a sag despite the at least one bearing device.
- the sag is smaller than it would be without a storage device.
- the sag at a given location is the distance between the center point of the winding shaft at this location and a straight line through the center point of the winding shaft at the first free end and the center point of the winding shaft at the second free end.
- the relative sag is the sag divided by the diameter of the winding shaft.
- the relative sag above the at least one bearing device is preferably greater than a fifth, in particular a quarter, than the relative sag that the winding shaft would have without the bearing device.
- the relative sag above the at least one bearing device is preferably less than a four fifth, in particular three quarters, particularly preferably less than two thirds, than the relative sag that the winding shaft would have without the bearing device.
- the relative sag that the winding shaft would have without the bearing device is determined by bringing the bearing elements out of contact with the winding and the winding shaft.
- the sag is less than a quarter of the relative sag that the winding shaft would have without the bearing device.
- particularly small forces act on the bearings of the winding shaft, which are preferably roller bearings.
- the at least one storage device - as provided in accordance with a preferred embodiment - is arranged such that a sag as described above, in particular is more than a fifth of the sag without a storage device, the flexing load of the fire protection element is reduced and, in addition, the preferably existing bearing of the Winding shaft not excessively loaded.
- the fire and / or smoke protection curtain has two, three, four or more storage devices, so that the fire and / or smoke protection curtain can be built very wide without this causing an excessive load on the side bearings of the Winding shaft leads.
- the invention is also a building with a wall that has an opening, and a fire and / or smoke protection curtain according to the invention, the fire protection element of which is arranged to close the opening.
- a free fire protection element edge of the fire protection element preferably runs in the wall-side half space, which extends from the vertical plane through the center of the winding shaft to the wall.
- According to the invention is also a building with a fire and / or smoke curtain according to the invention, which is designed as a smoke apron.
- the fire and / or smoke curtain is mounted on a ceiling of the building.
- the fire and / or smoke curtain is mounted on a wall of the building.
- Figure 1a shows a section of a building 10 according to the invention, which has a wall 12.
- the wall 12 has an opening 14 which can be reversibly closed by means of a fire and / or smoke protection curtain 16 according to the invention.
- the fire and / or smoke protection curtain 16 has, which is possible but not necessary, a first guide strip 18.1 and a second guide strip 18.2, on which a fire protection element 20 is guided. At a lower end, the fire protection element 20 is optionally connected to a baseboard 22, which rests on a floor 24 when the fire protection element 20 is in its protective arrangement.
- Figure 1b shows a section of the fire and / or smoke protection curtain 16 according to Figure 1a , It can be seen that the fire and / or smoke protection curtain has a storage device 28 which has a flexible carrier 30.
- the carrier 30 comprises a first support element 32.1 and a second support element 32.2.
- the support elements are formed by chains, but this is not necessary.
- the support elements can be formed, for example, from a plastic band, in particular a fiber-reinforced plastic band.
- the first support element 32.1 has a first first support element end E 32.1.1 and a second first support element end E 32.1.2 .
- the second support element end 32.2 has a first support element end E 32.2.1 and a second second support element end E 32.2.2 .
- bearing elements 34.i 1,2, ... 6 are fastened, which in the present case are bearing rollers.
- the bearing elements 34.i could be sliding elements, for example.
- the bearing rollers 34.i are rotatably fastened about their respective axes of rotation, for example by means of roller bearings.
- the support elements are formed by chains, each bearing roller 34.i preferably being attached to only one link in the chain. In addition, preferably no two bearing rollers 34.i are attached to one link of the chain.
- the support element can also be a belt, for example made of plastic, in particular fiber-reinforced plastic, or a sheet metal, provided that it is sufficiently flexible so that its curvature corresponds to the diameter of a winding 36 made of the fire protection element 20 and the like Can adjust winding shaft 26.
- the first first support element end E 32.1.1 is attached to a first arm end E 38.1 of a first arm 38.1 of a holder 40.
- the first arm 38.1 engages around the winding shaft 26 from above.
- the holder 40 also has a second arm 38.2, which has a two-arm end E 38.2 .
- the second support element 32.2 is fastened to the second arm end E 38.2 with its second support element end E 32.2 .
- the carrier 30, in this case the support elements 32.1, 32.2, are connected to a spring 42.
- the first support element end 32.1.2 of the first support element 32.1 is connected to the spring 42.
- the second support element 32.2 is connected to the spring 42 by its second end support element E 32.2.2 .
- the spring 42 is constructed mirror-symmetrically to a mirror plane which is perpendicular to an axis of rotation D 26 of the winding shaft.
- Figure 2a shows a cross section through the fire and / or smoke protection curtain 16, the fire protection element 20 being in its protective arrangement.
- the winding 36 which basically only consists of the winding shaft 26, has a small diameter d 36 . This causes a comparatively small force F to bear on the carrier 30.
- the spring 42 is thereby subjected to little load and a curvature of a compensating circle by the bearing elements 34.i is smaller than the case described below.
- FIG. 2b shows the case in which the fire protection element 20 is in its storage arrangement.
- the winding 36 is heavier, so that the force F is greater.
- the curvature of the compensation circle by the bearing elements 34.i is smaller and the winding 36 rests on more bearing elements than in that in FIG Figure 2a shown case, in which the fire protection element 20 is in its protective arrangement.
- the spring 42 is elastically deformed in this state.
- Figure 2b shows a mounting part 44 for mounting the fire and / or smoke curtain 16 on the wall 12.
- a vertical plane E which runs through a center M of the winding shaft 26, divides the space into a half-space H1 on the part of the mounting part and a half-space H2 remote from the mounting part add together to the entire room. It can be seen that more bearing elements 34.i, in particular completely, are arranged in the half-space H1 on the mounting part side than in the half space H2 remote from the mounting part. This supports the winding 36 when the fire protection element 20 is wound up and thus the force F acts obliquely on the winding 36.
- Figure 2b shows a peeling point P, which in Figure 2b Cross section shown is defined by the fire and / or smoke curtain 16 and is the point at which the fire protection element 20 detaches from the winding 36.
- the detachment point P lies at an angular position a, which is measured in relation to the plane E.
- the fire protection element 20 runs on a run-off edge 46, which in the present case is arranged adjacent to the first arm end E 38.1 and to the second arm end E 38.2 .
- the trailing edge 46 is formed on a housing 48, but this is not necessary.
- Figure 2b also shows that the trailing edge 46 lies between the wall 12 and the plane E. This fact generally makes storage difficult, but is easy to control with the storage according to the invention.
- Figure 3a shows a perspective view of a section of the fire and / or smoke curtain 16, in which the spring 42 can be seen in the deformed state. It can be seen that the spring 42 has a first torsion section 50, a second torsion section 52 and a connecting section 54.
- Figure 3b shows in the right part of the spring 42 in the undeformed position.
- the spring 42 can be seen deformed in the left partial image. It can be seen that the spring executes a first bending movement with respect to a first bending axis B 1 and a second bending movement with respect to a second bending axis B 2 , which runs transverse to the first bending axis B 1 .
- the spring 42 executes a third bending movement with respect to a third bending axis B 3 , which runs along the, in particular parallel to, the first bending axis B 1 .
- the bending axes are those lines that do not deform when bent.
- Figure 4a shows a sag x of the winding shaft 26 above the bearing device 28, which is greater than a quarter than the relative sag x / d 26 that the winding shaft 26 without the bearing device 28 or with the spring 42 relaxed.
- the latter is in Figure 4b shown.
- a center point M3 of the winding shaft 26 above the bearing device 28 lies below a straight line g which runs through the center point M1 of the winding shaft 26 at its first free end 56 and through the center point M2 of the winding shaft 26 at its second free end 58.
- the bearing device 28 therefore does not absorb the entire force that would be necessary to reduce the sag x to zero, as would be the case for the winding shaft 26 ′ shown in dashed lines.
- Figure 4b shows that the relative sag x / d 26 above the bearing device 28 is greater than one fifth of the relative sag that the winding shaft 26 would have without the bearing device 28.
- d 26 is the diameter of the winding shaft 26.
Abstract
Die Erfindung betrifft einen Brand- und/oder Rauchschutzvorhang (16) mit (a) einem Brandschutzelement (20), (b) einer Wickelwelle (26), auf der das Brandschutzelement (20) aufwickelbar angebracht ist, und (c) einer Lagervorrichtung (28), die zumindest einen Satz an Lagerelementen (34) zum Aufbringen einer Unterstützungskraft auf die Wickelwelle (26), aufweist. Erfindungsgemäß ist vorgesehen, dass die Lagervorrichtung (28) zumindest einen flexiblen Träger (30) aufweist, an dem die Lagerelemente (34) befestigt sind.The invention relates to a fire and / or smoke protection curtain (16) with (a) a fire protection element (20), (b) a winding shaft (26) on which the fire protection element (20) can be wound up, and (c) a storage device ( 28), which has at least one set of bearing elements (34) for applying a supporting force to the winding shaft (26). According to the invention, the bearing device (28) has at least one flexible carrier (30) to which the bearing elements (34) are attached.
Description
Die Erfindung betrifft einen Brand- und/oder Rauchschutzvorhang mit (a) einem Brandschutzelement, (b) einer Wickelwelle, auf der das Brandschutzelement aufwickelbar angebracht ist, und (c) einer Lagervorrichtung, die zumindest einen Satz an Lagerelementen zum Aufbringen einer Unterstützungskraft auf die Wickelwelle aufweist.The invention relates to a fire and / or smoke protection curtain with (a) a fire protection element, (b) a winding shaft on which the fire protection element can be wound up, and (c) a bearing device which has at least one set of bearing elements for applying a supporting force to the Has winding shaft.
Derartige Brand- und/oder Rauchschutzvorhänge, wie sie aus der
Aus der
Das Brandschutztextil ist in der Regel empfindlich gegen Walkbelastung. Es ist daher vorgeschlagen worden, die Wickelwelle mit dem aufgewickelten Brandschutztextil schwimmend zu lagern, das heißt in einer Wanne, sodass der Wickel aus Brandschutztextil und Wickelwelle flächig auf der Wanne aufliegt. Das aber hat den Nachteil, dass an Nahtstellen zwischen einzelnen Segmenten des Brandschutztextils ein hoher Reibverschleiß auftritt. Dem kann zwar mit Reibschutzbelägen entgegengewirkt werden, das Aufbringen dieser Reibschutzbeläge ist jedoch aufwändig.The fire protection textile is usually sensitive to walking loads. It has therefore been proposed to store the winding shaft with the wound fire protection textile in a floating manner, that is to say in a tub, so that the roll of fire protection textile and winding shaft lies flat on the tub. However, this has the disadvantage that a high level of wear occurs at the seams between individual segments of the fire protection textile. This can be counteracted with anti-friction linings, but the application of these anti-friction linings is complex.
Erschwerend kommt hinzu, dass sichergestellt sein muss, dass das Brandschutzelement bei einem Stromausfall sicher in seine Schließposition kommt, in der es die Öffnung verschließt. In der Regel verläuft das Brandschutzelement in seiner Schließstellung vertikal.To make matters worse, it must be ensured that, in the event of a power failure, the fire protection element safely comes into its closed position, in which it closes the opening. As a rule, the fire protection element runs vertically in its closed position.
Die Erfindung löst das Problem durch einen gattungsgemäßen Brand- und/oder Rauchschutzvorhang, bei dem die Lagervorrichtung zumindest einen flexiblen Träger aufweist, an der die Lagerelemente befestigt sind.The invention solves the problem by a generic fire and / or smoke protection curtain, in which the bearing device has at least one flexible support to which the bearing elements are attached.
Im Rahmen der vorliegenden Beschreibung wird unter einem Brand- oder Rauchschutzvorhang insbesondere jede Vorrichtung verstanden, die ausgebildet ist, um die Ausbreitung von Bränden und/oder Rauch zu verhindern oder nachhaltig zu hemmen oder von einem Brand produzierten Rauch an der Ausbreitung zu hindern. Insbesondere ist die Brand- oder Rauchschutzvorrichtung ausgebildet zum Standhalten eines Brands für mindestens 30 Minuten, insbesondere zumindest 60 Minuten, vorzugsweise für zumindest 90 Minuten. Die Klassifikation wird insbesondere nach DIN EN 13501-2 und 3 durchgeführt. Eine Brand- oder Rauchschutzvorrichtung unterscheidet sich daher grundlegend von Vorrichtungen, die lediglich zum Verschließen von Öffnungen geeignet sind oder anderen Zwecken dienen. Der Brand- oder Rauchschutzvorhang ist vorzugsweise zum reversiblen, insbesondere wiederholten, Schließen und Öffnen ausgebildet. In anderen Worten kann der Brand- oder Rauchschutzvorhang mehrfach, insbesondere zumindest einhundertmal, geschlossen und geöffnet werden.In the context of the present description, a fire or smoke protection curtain is understood in particular to be any device which is designed to prevent or sustainably prevent the spread of fires and / or smoke or to prevent smoke produced by a fire from spreading. In particular, the fire or smoke protection device is designed to withstand a fire for at least 30 minutes, in particular at least 60 minutes, preferably for at least 90 minutes. The classification is carried out in particular according to DIN EN 13501-2 and 3. A fire or smoke protection device therefore differs fundamentally from devices that are only suitable for closing openings or are used for other purposes. The fire or smoke protection curtain is preferably designed for reversible, in particular repeated, closing and opening. In other words, the fire or smoke protection curtain can be closed and opened several times, in particular at least one hundred times.
Das Brandschutzelement besteht vorzugsweise zumindest teilweise, insbesondere vollständig, aus Brandschutztextil.The fire protection element preferably consists at least partially, in particular completely, of fire protection textile.
Unter einem Brandschutztextil wird insbesondere ein Gewebe, Gelege oder Gestrick verstanden, das nicht brennbar ist und Temperaturbelastungen hinreichend lange widersteht, um einem Durchtritt von Flammen und/oder Rauch, insbesondere für zumindest für 30 Minuten gemäß der EN 1634-3 und/oder DIN EN 12101-1 zu widerstehen. Vorteilhaft an der Verwendung von Brandschutztextilien ist der geringe Fertigungsaufwand. So ist es möglich, das Brandschutzelement aus ein, zwei, drei oder mehr flächigen Brandschutztextil-Stücken durch Verbinden, insbesondere Vernähen, herzustellen.A fire protection textile is understood to mean, in particular, a fabric, scrim or knitted fabric that is non-flammable and withstands temperature loads for a sufficiently long time to allow flame and / or smoke to pass through, in particular for at least 30 minutes in accordance with EN 1634-3 and / or DIN EN Resist 12101-1. The advantage of using fire protection textiles is the low manufacturing effort. It is thus possible to connect the fire protection element from one, two, three or more flat fire protection textile pieces by connecting, in particular sewing, manufacture.
Günstig ist es, wenn der Brand- oder Rauchschutzvorhang eine Wärmeaufnahme hat, die größer ist als 0 kJ/m2. In anderen Worten nimmt der Brand- oder Rauchschutzvorhang im Brandfall Wärme auf und gibt - anders als beispielsweise Sichtschutzrollos oder Insektenschutzvorhänge - keine Wärme ab. Der Brand- oder Rauchschutzvorhang ist vorzugsweise unbrennbar.It is favorable if the fire or smoke protection curtain has a heat absorption that is greater than 0 kJ / m 2 . In other words, the fire or smoke curtain absorbs heat in the event of a fire and - unlike blinds or insect screens, for example - does not give off any heat. The fire or smoke curtain is preferably non-flammable.
Unter der Aktivierungstemperatur wird insbesondere die kleinste Temperatur verstanden, für die gilt, dass nach einer Stunde bei dieser Temperatur über 90 Masseprozent des Kühl-Materials unter Wärmeaufnahme reagiert haben. Günstig ist es, wenn das Kühl-Material oberhalb der Aktivierungstemperatur beispielsweise durch die Abgabe von Kristallwasser und/oder durch die Abspaltung von Wasser reagiert. Wasser besitzt eine hohe Verdampfungswärme, so dass beim Verdampfen viel Wärme aufgenommen wird. Die Aktivierungstemperatur beträgt vorzugsweise zumindest 90°C und/oder höchstens 250°C.The activation temperature is understood in particular to be the lowest temperature for which it applies that after an hour at this temperature over 90 percent by mass of the cooling material has reacted with the absorption of heat. It is expedient if the cooling material reacts above the activation temperature, for example by releasing water of crystallization and / or by splitting off water. Water has a high heat of evaporation, so that a lot of heat is absorbed during evaporation. The activation temperature is preferably at least 90 ° C and / or at most 250 ° C.
Unter dem Kühl-Material wird insbesondere ein Material verstanden, das oberhalb der Aktivierungstemperatur durch eine endotherme Reaktion Wasser und/oder Kohlendioxid abgibt. Das Kühl-Material kann ein Reinstoff oder eine Mischung sein. Beispielsweise ist das Kühl-Material zumindest teilweise kristallwasserhaltig. Das Kühl-Material kann Metallhydrat und/oder Karbonat und/oder eine Hydroxidverbindung enthalten.The cooling material is understood to mean in particular a material which releases water and / or carbon dioxide by an endothermic reaction above the activation temperature. The cooling material can be a pure substance or a mixture. For example, the cooling material at least partially contains water of crystallization. The cooling material can contain metal hydrate and / or carbonate and / or a hydroxide compound.
Vorzugsweise ist das Brandschutzelement flexibel. Unter dem Merkmal, dass das Brandschutzelement flexibel ist, wird verstanden, dass es biegsam ist. Es sei darauf hingewiesen, dass ein flexibles Brandschutzelement nicht notwendigerweise dehnbar sein muss. Vorzugsweise ist das flexible Brandschutzelement nicht dehnbar, insbesondere nicht gummielastisch und besitzt eine Federkonstante, die zumindest halb so groß ist wie die von Stahl.The fire protection element is preferably flexible. The feature that the fire protection element is flexible means that it is flexible. It should be pointed out that a flexible fire protection element does not necessarily have to be stretchable. The flexible fire protection element is preferably not stretchable, in particular not elastic, and has a spring constant that is at least half as large as that of steel.
Vorteilhaft an dem erfindungsgemäßen Brand- und/oder Rauchschutzvorhang ist, dass die Lagerelemente den Wickel aus Brandschutzelement und Wickelwellen unterstützen, sodass die Wickelwelle weniger durchhängt. Das führt zu einer geringeren Walkbelastung des Brandschutzelementes und damit zu einer längeren Lebensdauer.An advantage of the fire and / or smoke protection curtain according to the invention is that the bearing elements support the roll of fire protection element and winding shafts, so that the winding shaft sags less. This leads to a lower flex load on the fire protection element and thus to a longer service life.
Vorzugsweise sind die Lagerelemente Lagerrollen, die um jeweilige Drehachsen drehbar am flexiblen Träger gelagert sind. Dreht sich der Wickel aus Wickelwelle und Brandschutzelement, so drehen sich auch die Lagerrollen, die mit dem Wickel in Kontakt kommen. Diese Drehbewegung führt zu sehr geringen Tangentialkräften auf den Wickel. Dadurch sind die Walkbelastungen und die Scherbelastung klein, was die Lebensdauer des Brandschutzelements erhöht.The bearing elements are preferably bearing rollers which are rotatably mounted on the flexible carrier about respective axes of rotation. If the winding from the winding shaft and fire protection element rotates, the bearing rollers that come into contact with the winding also rotate. This rotary movement leads to very low tangential forces on the winding. As a result, the flexing loads and the shear stress are small, which increases the life of the fire protection element.
Alternativ können die Lagerelemente auch Gleitelemente sein, auf denen das Brandschutzelement abgleitet. Beispielsweise können die Gleitelemente aus Polytetrafluorethylen oder einem sonstigen Kunststoff sein, der einen besonders kleinen Reibkoeffizienten r von vorzugsweise r ≤ 0,2, insbesondere r ≤ 0,1, mit dem Brandschutzelement hat.Alternatively, the bearing elements can also be sliding elements on which the fire protection element slides. For example, the sliding elements can be made of polytetrafluoroethylene or another plastic which has a particularly small coefficient of friction r of preferably r ≤ 0.2, in
Im Vergleich zu einer schwimmenden Lagerung oder einer Bandlagerung führen die Lagerelemente zu einer höheren Flächenpressung. Es hat sich aber herausgestellt, dass auch Brandschutztextil, das vorzugsweise Glasfasern enthält - und daher spröder ist als normales Textil - dennoch bei einer Lagerung auf Lagerelementen weniger Verschleiß zeigt als bei herkömmlicher Lagerung.Compared to a floating bearing or a belt bearing, the bearing elements lead to a higher surface pressure. However, it has been found that fire protection textiles, which preferably contain glass fibers - and are therefore more brittle than normal textiles - nevertheless show less wear when stored on bearing elements than with conventional storage.
Günstig ist es, wenn zumindest zwei, insbesondere zumindest drei, bevorzugt zumindest vier, besonders bevorzugt zumindest fünf, Lagerelemente, insbesondere Lagerrollen vorhanden sind. Vorzugsweise ist die Anzahl der Lagerelemente kleiner als 50.It is expedient if at least two, in particular at least three, preferably at least four, particularly preferably at least five, bearing elements, in particular bearing rollers, are present. The number of bearing elements is preferably less than 50.
Vorzugsweise weist der flexible Träger (a) ein erstes Tragelement, das ein erstes Ersttragelement-Ende und ein zweites Ersttragelement-Ende besitzt, und (b) ein zweites Tragelement, das ein erstes freies Zweittragelement-Ende und ein zweites freies Zweittrageelement-Ende aufweist, besitzt, auf.The flexible carrier preferably has (a) a first support element which has a first first support element end and a second first support element end, and (b) a second support element which has a first free second support element end and a second free second support element end, owns on.
Vorzugsweise ist das erste Tragelement eine erste Kette und das zweite Tragelement eine zweite Kette. Gemäß einer bevorzugten Ausführungsform weist der flexible Träger daher eine erste Kette und eine zweite Kette auf, wobei die Lagerrollen mit einem ersten Rollenende an der ersten Kette befestigt sind und mit einem zweiten Rollenende an der zweiten Kette befestigt sind. Unter einer Kette wird eine Abfolge von gleich aufgebauten Ketten-Gliedern verstanden, wobei benachbarte Glieder relativ zueinander beweglich, verschwenkbar, sind. Die Glieder selbst sind starr. Dadurch ist eine Kette flexibel, nicht aber elastisch.The first support element is preferably a first chain and the second support element is a second chain. According to a preferred embodiment, the flexible carrier therefore has a first chain and a second chain, the bearing rollers being attached to the first chain with a first roller end and being attached to the second chain with a second roller end. A chain is understood to be a sequence of chain links of the same structure, adjacent links being movable, pivotable, relative to one another. The limbs themselves are rigid. This makes a chain flexible, but not elastic.
Es ist möglich, nicht aber notwendig, dass die Lagerrollen mittelbar am flexiblen Träger befestigt sind. Es ist auch möglich, dass die Lagerrollen unmittelbar am flexiblen Träger befestigt sind.It is possible, but not necessary, that the bearing rollers are indirectly attached to the flexible carrier. It is also possible that the bearing rollers are attached directly to the flexible carrier.
Vorzugsweise ist der flexible Träger an einem ersten Träger-Ende, insbesondere an einer ortsfesten Aufnahme, befestigt und an einem zweiten Träger-Ende federnd, insbesondere relativ zur ortsfesten Aufnahme, gelagert. Insbesondere ist der Träger so ausgebildet, dass eine Veränderung eines Wickeldurchmessers des Wickels dazu führt, dass sich das zweite Träger-Ende so bewegt, dass dieser flexible Träger sich dem ändernden Wickeldurchmesser anpasst. Unter diesem Merkmal wird insbesondere verstanden, dass der Träger so ausgebildet ist, dass eine Krümmung des flexiblen Trägers größer wird, wenn der Durchmesser des Wickels kleiner wird, und dass die Krümmung des flexiblen Trägers kleiner wird, wenn der Durchmesser des Wickels größer wird. Die Krümmung ist insbesondere der Kehrwert des Radius des Ausgleichskreises durch die Auflagerpunkte, in denen der Wickel auf den Lagerelementen aufliegt.The flexible carrier is preferably fastened to a first carrier end, in particular to a stationary receptacle, and resiliently mounted to a second carrier end, in particular relative to the stationary receptacle. In particular, the carrier is designed such that a change in a winding diameter of the winding leads to the second carrier end moving in such a way that this flexible carrier adapts to the changing winding diameter. This feature is understood in particular to mean that the carrier is designed in such a way that a curvature of the flexible carrier increases as the diameter of the winding becomes smaller, and that the curvature of the flexible carrier decreases as the diameter of the winding increases. The curvature is in particular the reciprocal of the radius of the compensation circle through the support points in which the winding rests on the bearing elements.
Gemäß einer bevorzugten Ausführungsform ist die Lagervorrichtung so ausgebildet, dass der Wickel zumindest dann, wenn das Brandschutzelement aufgewickelt ist, auf zumindest drei Lagerelementen aufliegt.According to a preferred embodiment, the bearing device is designed such that the winding rests on at least three bearing elements at least when the fire protection element is wound up.
Vorzugsweise umfasst die Lagervorrichtung eine Feder, die mit dem zweiten Träger-Ende des flexiblen Trägers zum federnden Lagern des zweiten Träger-Endes verbunden ist und die bei Belastung des flexiblen Trägers eine kombinierte Biege-Torsionsbewegung ausführt. Insbesondere handelt es sich bei der Feder nicht um eine Spiralfeder. Eine derartige Feder kann einfach, leicht und platzsparend hergestellt werden.The bearing device preferably comprises a spring which is connected to the second support end of the flexible support for resilient mounting of the second support end and which executes a combined bending-torsional movement when the flexible support is loaded. In particular, the spring is not one Coil spring. Such a spring can be manufactured simply, easily and in a space-saving manner.
Alternativ ist die Feder ausgebildet zum Ausführen einer ersten Biegebewegung bezüglich einer ersten Biegeachse und einer zweiten Biegebewegung bezüglich einer zweiten Biegeachse, die quer zur ersten Biegeachse verläuft. Es ist bevorzugt, nicht aber notwendig, dass die Feder ausgebildet ist zum Ausführen einer dritten Biegebewegung bezüglich einer dritten Biegeachse, die entlang der, insbesondere parallel zur, ersten Biegeachse verläuft.Alternatively, the spring is designed to perform a first bending movement with respect to a first bending axis and a second bending movement with respect to a second bending axis, which runs transverse to the first bending axis. It is preferred, but not necessary, that the spring is designed to carry out a third bending movement with respect to a third bending axis, which runs along the, in particular parallel to, the first bending axis.
Günstig ist es, wenn die Feder funktionell symmetrisch ist. Hierunter wird insbesondere verstanden, dass die Feder eine Spiegelebene aufweist und sich auf spiegelsymmetrische Weise deformiert, wenn eine Kraft am flexiblen Träger anliegt. Es ist dabei selbstverständlich möglich, dass die resultierende Deformation nicht im mathematischen Sinne spiegelsymmetrisch ist, sondern im technischen Sinne, das heißt, dass die Art der Bewegung die gleiche ist, wenngleich das Ausmaß der Bewegung unterschiedlich sein kann.It is favorable if the spring is functionally symmetrical. This is understood in particular to mean that the spring has a mirror plane and deforms in a mirror-symmetrical manner when a force is applied to the flexible carrier. It is of course possible that the resulting deformation is not mirror-symmetrical in the mathematical sense, but in the technical sense, that is, that the type of movement is the same, although the extent of the movement can be different.
Vorzugsweise besitzt die Feder einen ersten Torsionsabschnitt, der sich entlang einer Drehachse der Wickelwelle erstreckt, einen zweiten Torsionsabschnitt, der sich ebenfalls entlang der Drehachse der Wickelwelle erstreckt und einen Verbindungsabschnitt, der den ersten Torsionsabschnitt mit dem zweiten Torsionsabschnitt verbindet.The spring preferably has a first torsion section which extends along an axis of rotation of the winding shaft, a second torsion section which also extends along the axis of rotation of the winding shaft and a connecting section which connects the first torsion section to the second torsion section.
Die Torsionsabschnitte sind vorzugsweise länglich, das heißt, dass sie ein Aspektverhältnis von zumindest drei haben. Durch die drei Abschnitte führt die Feder eine kombinierte Biege-Torsionsbewegung oder drei Biegebewegungen bezüglich der oben genannten drei Biegeachsen aus, was sich als besonders günstig herausgestellt hat.The torsion sections are preferably elongated, that is to say that they have an aspect ratio of at least three. Through the three sections, the spring carries out a combined bending-torsional movement or three bending movements with respect to the above-mentioned three bending axes, which has been found to be particularly favorable.
Das Brandschutzelement ist vorzugsweise in eine Lageranordnung, in der es auf der Wickelwelle aufgewickelt ist, und in eine Schutzanordnung, in der es von der Wickelwelle abgewickelt ist und eine Öffnung verschließt, bringbar.The fire protection element can preferably be brought into a bearing arrangement in which it is wound on the winding shaft and in a protective arrangement in which it is unwound from the winding shaft and closes an opening.
Vorzugsweise ist die Wickelwelle an zumindest einem Wickelwellen-Ende, vorzugsweise an beiden Wickelwellen-Enden, ortsfest gelagert. Das verhindert, dass ein Driften der Wickelwelle beim Hoch- und Runterlauf, das heißt beim Bringen des Brandschutzelementes aus der Schutzanordnung in die Lagerordnung beziehungsweise aus der Lageranordnung in die Schutzanordnung.The winding shaft is preferably fixed in place on at least one winding shaft end, preferably on both winding shaft ends. This prevents the winding shaft from drifting during up and down running, that is to say when the fire protection element is brought out of the protective arrangement into the bearing arrangement or out of the bearing arrangement into the protective arrangement.
Vorzugsweise ist die Wickelwelle zumindest 7 Meter lang. Bislang sind nur 6 Meter mit an beiden Enden ortsfest gelagerten Wickelwellen möglich, da ansonsten der Durchhang der Wickelwelle zu groß wird. Durch die neuartige Lagerung können auch breitere Wickelwellen gelagert werden.The winding shaft is preferably at least 7 meters long. So far, only 6 meters are possible with the winding shafts fixed at both ends, otherwise the sag of the winding shaft will be too large. Thanks to the new type of storage, wider winding shafts can also be stored.
Vorzugsweise besitzt das Brandschutzelement ein erstes Segment und ein zweites Segment aus Brandschutztextil, die mittels einer vertikal verlaufenden Naht verbunden sind, wobei das Brandschutzelement im Bereich der Naht, insbesondere auf der Naht, gelagert ist. Unter einer vertikal verlaufenden Naht wird insbesondere eine Naht verstanden, die im technischen Sinne vertikal verläuft, das heißt, dass eine Winkelabweichung zur Vertikalen von beispielsweise 3° tolerierbar ist. Eine solche Lagerung im Bereich der Naht ist besonders schonend für das Brandschutzelement.The fire protection element preferably has a first segment and a second segment made of fire protection textile, which are connected by means of a vertically running seam, the fire protection element being mounted in the area of the seam, in particular on the seam. A vertically running seam is understood to mean in particular a seam that runs vertically in the technical sense, that is to say that an angular deviation from the vertical of, for example, 3 ° can be tolerated. Such storage in the area of the seam is particularly gentle on the fire protection element.
Gemäß einer bevorzugten Ausführungsform ist die Wickelwelle so angeordnet, dass der Ablösepunkt, also der Punkt entlang des Umfangs des Wickels, in dem sich das Brandschutzelement vom Wickel trennt, in einer Winkelstellung liegt, die zumindest 22,5° von der 12-Uhr-Stellung entfernt ist. In anderen Worten verläuft das Brandschutzelement in diesem Punkt unter einem Winkel von zumindest 22,5° zur Vertikalen nach unten. In diesem Fall ist die Erfindung mit besonders großem Nutzen gegenüber herkömmlichen Systemen.According to a preferred embodiment, the winding shaft is arranged such that the detachment point, that is the point along the circumference of the winding in which the fire protection element separates from the winding, is in an angular position which is at least 22.5 ° from the 12 o'clock position is removed. In other words, the fire protection element runs downwards at an angle of at least 22.5 ° to the vertical at this point. In this case, the invention is particularly useful compared to conventional systems.
Vorzugsweise verläuft das Brandschutzelement in seiner Schutzanordnung vertikal. In anderen Worten beträgt ein Winkel mit der Vertikalen höchstens 5°. In diesem Fall, der für die Lagerung des Brandschutzelementes besonders problematisch ist, ist es vorteilhaft, wenn die Lagervorrichtung einen Halter, der die Wickelwelle von oben umgreift und ein freies Halter-Ende hat, aufweist. Günstig ist es, wenn das erste Träger-Ende des flexiblen Trägers am freien Halter-Ende befestigt ist. Wenn der flexible Träger eine erste und eine zweite Kette aufweist, was möglich, nicht aber notwendig ist, so sind beide Ketten mit ihrem ersten freien Ende am ersten Träger-Ende befestigt. Die jeweiligen zweiten freien Enden der beiden Ketten sind vorzugsweise ebenfalls am Halter befestigt, das ist aber nicht notwendig.The fire protection element preferably extends vertically in its protective arrangement. In other words, an angle with the vertical is at most 5 °. In this case, which is particularly problematic for the storage of the fire protection element, it is advantageous if the bearing device has a holder which engages around the winding shaft from above and has a free holder end. It is favorable if the first carrier end of the flexible carrier is attached to the free holder end. If the flexible carrier has a first and a second chain, which is possible but not necessary is, both chains are attached with their first free end to the first carrier end. The respective second free ends of the two chains are preferably also attached to the holder, but this is not necessary.
Dadurch, dass der Halter, die Wickelwelle von oben umgreift, kann das Brandschutztextil schonend nach unten abgewickelt werden.Because the holder engages around the winding shaft from above, the fire protection textile can be gently unwound downwards.
Das freie Halter-Ende liegt vorzugsweise in dem ablaufseitigen Halbraum. Der ablaufseitige Halbraum wird begrenzt durch die vertikale Ebene durch die Drehachse der Wickelwelle und enthält das freie Ende des Brandschutzelements. Der ablaufabwärtige Halbraum wird ebenfalls von dieser vertikalen Ebene begrenzt, aber von der anderen Seite. Beide Halbräume ergänzen sich zum gesamten Raum.The free holder end is preferably in the half space on the outlet side. The half-space on the outlet side is limited by the vertical plane through the axis of rotation of the winding shaft and contains the free end of the fire protection element. The downstream half-space is also bounded by this vertical plane, but from the other side. Both half-spaces complement each other to form the entire room.
Günstig ist es, wenn die Lagervorrichtung einen ersten Arm, der die Wickelwelle von oben umgreift und ein freies Erstarm-Ende hat, und einen zweiten Arm, der die Wickelwelle von oben umgreift und ein freies Zweitarm-Ende hat, aufweist.It is expedient if the bearing device has a first arm, which engages around the winding shaft from above and has a free first arm end, and a second arm, which engages around the winding shaft from above and has a free second arm end.
Günstig ist es, wenn das erste Ersttragelement-Ende des ersten Tragelements am ersten freien Arm-Ende befestigt ist und das erste freie Zweittrageelement-Ende des zweiten Tragelements am zweiten freien Arm-Ende befestigt ist. Es ergibt sich so eine besonders einfache und leichte Konstruktion.It is expedient if the first end of the first support element of the first support element is attached to the first free arm end and the first free end of the second support element of the second support element is attached to the second free arm end. The result is a particularly simple and light construction.
Vorzugsweise besitzt der Brand- und /oder Rauchschutzvorhang ein Montageteil zum Montieren des Brand- und/oder Rauchschutzvorhangs an einer Wand eines Gebäudes, wobei mehr Lagerelemente in einem montageteilseitigen Halbraum, der sich von der vertikalen Ebene durch den Mittelpunkt der Wickelwelle aus zum Montageteil hin erstreckt, angeordnet sind als in einem montageteilfernen Halbraum, der sich von der vertikalen Ebene aus vom Montageteil weg erstreckt. Die beiden Halbräume ergeben den gesamten Raum.The fire and / or smoke protection curtain preferably has a mounting part for mounting the fire and / or smoke protection curtain on a wall of a building, with more bearing elements in a mounting part-side half space which extends from the vertical plane through the center point of the winding shaft to the mounting part are arranged as in a half space remote from the mounting part, which extends from the vertical plane away from the mounting part. The two half-spaces make up the entire room.
Gemäß einer bevorzugten Ausführungsform besitzt der Brand- und/oder Rauchschutzvorhang eine zweite Lagervorrichtung, die von der ersten Lagervorrichtung beabstandet angeordnet ist. Es ist möglich, nicht aber notwendig, dass der Brand- und/oder Rauchschutzvorhang eine dritte Lagervorrichtung, eine vierte Lagervorrichtung oder mehr Lagervorrichtungen aufweist. Die Lagervorrichtungen können beispielsweise äquidistant angeordnet sein. Es ist dann möglich, sehr breite Wickelwellen mit beispielsweise mehr als 10 Meter Breite zu lagern.According to a preferred embodiment, the fire and / or smoke protection curtain has a second storage device which is arranged at a distance from the first storage device. It is possible, but not necessary, that the fire and / or smoke protection curtain has a third storage device, a fourth storage device or more storage devices. The bearing devices can, for example, be arranged equidistantly. It is then possible to store very wide winding shafts with a width of more than 10 meters, for example.
Gemäß einer bevorzugten Ausführungsform ist die zumindest eine Lagervorrichtung so angeordnet, dass ein Mittelpunkt der Wickelwelle oberhalb der Lagervorrichtung unterhalb des Mittelpunkts der Wickelwelle an ihrem ersten freien Ende und/oder an ihrem zweiten freien Ende liegt. In anderen Worten hat die Wickelwelle trotz der zumindest einen Lagervorrichtung einen Durchhang. Allerding ist der Durchhang kleiner als er es ohne Lagervorrichtung wäre.According to a preferred embodiment, the at least one bearing device is arranged such that a center point of the winding shaft is above the bearing device below the center point of the winding shaft at its first free end and / or at its second free end. In other words, the winding shaft has a sag despite the at least one bearing device. However, the sag is smaller than it would be without a storage device.
Der Durchhang an einem vorgegebenen Ort ist der Abstand zwischen dem Mittelpunkt der Wickelwelle an diesem Ort und einer Ausgleichsgeraden durch den Mittelpunkt der Wickelwelle am ersten freien Ende und den Mittelpunkt der Wickelwelle am zweiten freien Ende. Der relative Durchhang ist der Durchhang dividiert durch den Durchmesser der Wickelwelle.The sag at a given location is the distance between the center point of the winding shaft at this location and a straight line through the center point of the winding shaft at the first free end and the center point of the winding shaft at the second free end. The relative sag is the sag divided by the diameter of the winding shaft.
Vorzugsweise ist der relative Durchhang oberhalb der zumindest einen Lagervorrichtung größer als ein Fünftel, insbesondere als ein Viertel, als der relative Durchhang, den die Wickelwelle ohne die Lagervorrichtung hätte. Vorzugsweise ist der relative Durchhang oberhalb der zumindest einen Lagervorrichtung kleiner als ein vier Fünftel, insbesondere als drei Viertel, besonders bevorzugt kleiner als zwei Drittel, als der relative Durchhang, den die Wickelwelle ohne die Lagervorrichtung hätte. Der relative Durchhang, den die Wickelwelle ohne die Lagervorrichtung hätte, wird bestimmt, indem die Lagerelemente außer Kontakt mit dem Wickel und der Wickelwelle gebracht werden.The relative sag above the at least one bearing device is preferably greater than a fifth, in particular a quarter, than the relative sag that the winding shaft would have without the bearing device. The relative sag above the at least one bearing device is preferably less than a four fifth, in particular three quarters, particularly preferably less than two thirds, than the relative sag that the winding shaft would have without the bearing device. The relative sag that the winding shaft would have without the bearing device is determined by bringing the bearing elements out of contact with the winding and the winding shaft.
Es ist möglich und stellt ebenfalls eine bevorzugte Ausführungsform dar, dass der Durchhang kleiner ist als ein Viertel des relativen Durchhangs, den die Wickelwelle ohne die Lagervorrichtung hätte. In diesem Fall wirken auf die Lager der Wickelwelle, bei denen es sich vorzugsweise um Wälzlager handelt, besonders kleine Kräfte. Wenn jedoch die zumindest eine Lagervorrichtung - wie gemäß einer bevorzugten Ausführungsform vorgesehen - so angeordnet ist, dass ein Durchhang wie oben beschrieben ist, insbesondere mehr als ein Fünftel des Durchhangs ohne Lagervorrichtung beträgt, wird die Walkbelastung des Brandschutzelements vermindert und zudem das vorzugsweise vorhandene Lager der Wickelwelle nicht übermäßig belastet. Es ist dann besonders gut möglich, dass der Brand- und/oder Rauchschutzvorhang zwei, drei, vier oder mehr Lagervorrichtungen aufweist, sodass der Brand- und/oder Rauchschutzvorhang sehr breit gebaut werden kann, ohne dass dies zu einer übermäßigen Belastung der seitlichen Lager der Wickelwelle führt. It is possible and also represents a preferred embodiment that the sag is less than a quarter of the relative sag that the winding shaft would have without the bearing device. In this case , particularly small forces act on the bearings of the winding shaft, which are preferably roller bearings. However, if the at least one storage device - as provided in accordance with a preferred embodiment - is arranged such that a sag as described above, in particular is more than a fifth of the sag without a storage device, the flexing load of the fire protection element is reduced and, in addition, the preferably existing bearing of the Winding shaft not excessively loaded. It is then particularly possible that the fire and / or smoke protection curtain has two, three, four or more storage devices, so that the fire and / or smoke protection curtain can be built very wide without this causing an excessive load on the side bearings of the Winding shaft leads.
Erfindungsgemäß ist zudem ein Gebäude mit einer Wand, die eine Öffnung hat, sowie einem erfindungsgemäßen Brand- und/oder Rauchschutzvorhang, dessen Brandschutzelement zum Verschließen der Öffnung angeordnet ist. Vorzugsweise verläuft eine freie Brandschutzelement-Kante des Brandschutzelements im wandseitigen Halbraum, der sich von der vertikalen Ebene durch den Mittelpunkt der Wickelwelle aus zur Wand hin erstreckt.According to the invention is also a building with a wall that has an opening, and a fire and / or smoke protection curtain according to the invention, the fire protection element of which is arranged to close the opening. A free fire protection element edge of the fire protection element preferably runs in the wall-side half space, which extends from the vertical plane through the center of the winding shaft to the wall.
Erfindungsgemäß ist zudem ein Gebäude mit einem erfindungsgemäßen Brand- und/oder Rauchschutzvorhang, der als Rauchschürze ausgebildet ist.According to the invention is also a building with a fire and / or smoke curtain according to the invention, which is designed as a smoke apron.
Es ist vorteilhaft, nicht aber notwendig, dass der Brand- und/oder Rauchschutzvorhang an einer Decke des Gebäudes montiert ist. Alternativ oder zusätzlich ist der Brand- und/oder Rauchschutzvorhang an einer Wand des Gebäudes montiert.It is advantageous, but not necessary, that the fire and / or smoke curtain is mounted on a ceiling of the building. Alternatively or additionally, the fire and / or smoke curtain is mounted on a wall of the building.
Im Folgenden wird die Erfindung anhand der beigefügten Zeichnungen näher erläutert. Dabei zeigt:
- Figur 1 a
- ein erfindungsgemäßes Gebäude mit einem erfindungsgemäßen Brand- und/oder Rauchschutzvorhang,
Figur 1- b eine Detailansicht des Brand- und/oder Rauchschutzvorhangs gemäß Figur 1a,
- Figur 2a
- einen Querschnitt durch einen Halter des Brand- und/oder Rauchschutzvorhangs gemäß
Figur 1b , bei dem das Brandschutzelement in seiner Schutzanordnung ist, - Figur 2b
- den gleichen Querschnitt wie
Figur 2a , wobei das Brandschutzelement in seiner Lageranordnung ist, - Figur 3a
- eine perspektivische Ansicht eines Details des Halters des Brand- und/oder Rauchschutzvorhangs und
- Figur 3b
- eine Feder der Lagervorrichtung sowohl in Ruhestellung (rechtes Teilbild) als auch unter Last (linkes Teilbild).
- Figur 4
- zeigt in den Teil-
Figuren 4a und 4b den Durchhang der Wickelwelle.
- Figure 1 a
- a building according to the invention with a fire and / or smoke protection curtain according to the invention,
- Figure 1
- b a detailed view of the fire and / or smoke protection curtain according to FIG. 1a,
- Figure 2a
- a cross section through a holder of the fire and / or smoke curtain according
Figure 1b , in which the fire protection element is in its protective arrangement, - Figure 2b
- the same cross section as
Figure 2a , the fire protection element being in its bearing arrangement, - Figure 3a
- a perspective view of a detail of the holder of the fire and / or smoke curtain and
- Figure 3b
- a spring of the bearing device both in the rest position (right part) and under load (left part).
- Figure 4
- shows in the partial
Figures 4a and 4b the sag of the winding shaft.
Der Brand- und/oder Rauchschutzvorhang 16 besitzt, was möglich, nicht aber notwendig ist, eine erste Führungsleiste 18.1 und eine zweite Führungsleiste 18.2, an der ein Brandschutzelement 20 geführt ist. Unter einem unteren Ende ist das Brandschutzelement 20 optional mit einer Fußleiste 22 verbunden, die auf einem Boden 24 aufliegt, wenn das Brandschutzelement 20 in seiner Schutzanordnung ist.The fire and / or
Das erste Tragelement 32.1 besitzt ein erstes Ersttragelement-Ende E32.1,1 und ein zweites Ersttragelement-Ende E32.1,2. Das zweite Tragelement-Ende 32.2 besitzt ein erstes Tragelement-Ende E32.2,1 und ein zweites Zweittragelement-Ende E32.2,2.The first support element 32.1 has a first first support element end E 32.1.1 and a second first support element end E 32.1.2 . The second support element end 32.2 has a first support element end E 32.2.1 and a second second support element end E 32.2.2 .
An den beiden Tragelementen 32.1, 32.2 sind Lagerelemente 34.i (i = 1,2,...6) befestigt, die im vorliegenden Fall Lagerrollen sind. Alternativ könnten die Lagerelemente 34.i beispielsweise Gleitelemente sein. Die Lagerrollen 34.i sind um ihre jeweilige Drehachse drehbar befestigt, beispielsweise mittels Wälzlagern.On the two support elements 32.1, 32.2, bearing elements 34.i (i = 1,2, ... 6) are fastened, which in the present case are bearing rollers. Alternatively, the bearing elements 34.i could be sliding elements, for example. The bearing rollers 34.i are rotatably fastened about their respective axes of rotation, for example by means of roller bearings.
Im vorliegenden Fall sind die Tragelemente durch Ketten gebildet, wobei vorzugsweise jede Lagerrolle 34.i an nur einem Glied der Kette befestigt ist. Vorzugsweise sind zudem keine zwei Lagerrollen 34.i an einem Glied der Kette befestigt. Es ist jedoch nicht notwendig, dass das Tragelement eine Kette ist. Beispielsweise kann es sich bei dem Tragelement auch um einen Riemen, beispielsweise aus Kunststoff, insbesondere faserverstärktem Kunststoff handeln, oder um ein Blech, sofern dieses hinreichend biegsam ist, sodass es sich in seiner Krümmung an den Durchmesser eines Wickels 36 aus dem Brandschutzelement 20 und der Wickelwelle 26 anpassen kann.In the present case, the support elements are formed by chains, each bearing roller 34.i preferably being attached to only one link in the chain. In addition, preferably no two bearing rollers 34.i are attached to one link of the chain. However, it is not necessary for the support element to be a chain. For example, the support element can also be a belt, for example made of plastic, in particular fiber-reinforced plastic, or a sheet metal, provided that it is sufficiently flexible so that its curvature corresponds to the diameter of a winding 36 made of the
Das erste Ersttragelement-Ende E32.1,1 ist an einem Erstarm-Ende E38.1 eines ersten Arms 38.1 eines Halters 40 befestigt. Der erste Arm 38.1 umgreift die Wickelwelle 26 von oben. Der Halter 40 besitzt zudem einen zweiten Arm 38.2, der ein Zweitarm-Ende E38.2 aufweist. Am Zweitarm-Ende E38.2 ist das zweite Tragelement 32.2 mit seinem Zweittragelement-Ende E32.2 befestigt.The first first support element end E 32.1.1 is attached to a first arm end E 38.1 of a first arm 38.1 of a
Der Träger 30, im vorliegenden Fall also die Tragelemente 32.1, 32.2, sind mit einer Feder 42 verbunden. In der vorliegenden Ausführungsform ist das erste Tragelement 32.1 mit seinem zweiten Ersttragelement-Ende E32.1,2 mit der Feder 42 verbunden. Ebenfalls ist das zweite Tragelement 32.2 mit seinem zweiten Zweittragelement-Ende E32.2,2 mit der Feder 42 verbunden. Die Feder 42 ist spiegelsymmetrisch zu einer Spiegelebene aufgebaut, die senkrecht zu einer Drehachse D26 der Wickelwelle verläuft.The
Das Brandschutzelement 20 läuft in der vorliegenden Ausführungsform an einer Ablaufkante 46 ab, die im vorliegenden Fall benachbart zum Erstarm-Ende E38.1 und zum Zweitarm-Ende E38.2 angeordnet ist. Im vorliegenden Fall ist die Ablaufkante 46 an einem Gehäuse 48 ausgebildet, das ist aber nicht notwendig.In the present embodiment, the
Der Ablösepunkt P liegt vorzugsweise in einer Winkelstellung, die mehr als α = 30°, vorzugsweise mehr als α = 40°, beträgt. Auf diese Weise ist eine Bautiefe T des Brand- und/oder Rauchschutzvorhangs 16 klein gestaltbar.The detachment point P is preferably in an angular position which is more than α = 30 °, preferably more than α = 40 °. In this way, a depth T of the fire and / or
Die Lagervorrichtung 28 nimmt damit nicht die gesamte Kraft auf, die notwendig wäre, um den Durchhang x auf null zu reduzieren, wie dies für die gestrichelt gezeichnete Wickelwelle 26' der Fall wäre.The bearing
Claims (11)
dadurch gekennzeichnet, dass
characterized in that
das ein erstes Ersttragelement-Ende (E32.1,1) und ein zweites Ersttragelement-Ende (E32.2) besitzt, und
das ein erstes Zweittragelement-Ende (E32.2) und ein zweites Zweittragelement -Ende (E32.2) besitzt, aufweist.
which has a first first support element end (E 32.1.1 ) and a second first support element end (E 32.2 ), and
which has a first second support element end (E 32.2 ) and a second second support element end (E 32.2 ).
der flexible Träger (30)
an einem ersten Träger-Ende befestigt ist und
an einem zweiten Träger-Ende federnd gelagert ist.Fire and / or smoke protection curtain (16) according to one of the preceding claims; characterized in that
the flexible carrier (30)
is attached to a first support end and
is resiliently mounted on a second carrier end.
der sich entlang einer Drehachse (D26) der Wickelwelle (26) erstreckt,
der sich entlang einer Drehachse (D26) der Wickelwelle (26) erstreckt, und
which extends along an axis of rotation (D 26 ) of the winding shaft (26),
which extends along an axis of rotation (D 26 ) of the winding shaft (26), and
einen ersten Arm (38), der die Wickelwelle (26) von oben umgreift und ein freies Erstarm-Ende hat, und
einen zweiten Arm, der die Wickelwelle (26) von oben umgreift und ein freies Zweitarm-Ende hat, aufweist,
a first arm (38) which engages around the winding shaft (26) from above and has a free first arm end, and
has a second arm, which engages around the winding shaft (26) from above and has a free two-arm end,
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018116644.3A DE102018116644A1 (en) | 2018-07-10 | 2018-07-10 | Fire and / or smoke curtain |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3593866A1 true EP3593866A1 (en) | 2020-01-15 |
Family
ID=67145733
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19184184.0A Withdrawn EP3593866A1 (en) | 2018-07-10 | 2019-07-03 | Fire and/or smoke safety device |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP3593866A1 (en) |
DE (1) | DE102018116644A1 (en) |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2339352A1 (en) | 1972-08-03 | 1974-02-21 | Jean Henri Husson | FIRE PROTECTION DEVICE FOR ISOLATING AND CUTTING ROOMS |
JPH07328138A (en) * | 1994-06-03 | 1995-12-19 | Suzuki Shutter Kogyo Kk | Winding type mobile hanging wall made of fireproof sheet |
DE19610532A1 (en) | 1995-03-22 | 1996-11-14 | Rasontec N V By Rabobank Trust | Fire-resistant curtain for public building |
EP2428634A1 (en) * | 2010-08-04 | 2012-03-14 | Antonio Checcucci | Support structure for rolling shutters, fast rolling shutter doors or similar closure elements |
US20120125546A1 (en) | 2009-06-08 | 2012-05-24 | Coopers Fire Limited | Smoke or fire barrier |
DE102011016266A1 (en) | 2011-04-06 | 2012-10-11 | Stöbich Brandschutz GmbH | Fire or smoke protection device |
DE102012000116A1 (en) * | 2012-01-05 | 2013-07-11 | BSM Brandschutz-Manufaktur Deutschland GmbH | Smoke or fire protection device for closing opening in building to reduce spreading of fire and/or smoke, has winding shaft driven by driving apparatus, and receiver including bearing surface, on which winding is rest-supported |
JP2017031674A (en) * | 2015-07-31 | 2017-02-09 | 立川ブラインド工業株式会社 | Intermediate support bracket for rolling screen |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202014010289U1 (en) * | 2014-02-24 | 2015-03-25 | Reiner Detenhoff | Rolling room paneling for a roller shutter box |
-
2018
- 2018-07-10 DE DE102018116644.3A patent/DE102018116644A1/en active Pending
-
2019
- 2019-07-03 EP EP19184184.0A patent/EP3593866A1/en not_active Withdrawn
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2339352A1 (en) | 1972-08-03 | 1974-02-21 | Jean Henri Husson | FIRE PROTECTION DEVICE FOR ISOLATING AND CUTTING ROOMS |
JPH07328138A (en) * | 1994-06-03 | 1995-12-19 | Suzuki Shutter Kogyo Kk | Winding type mobile hanging wall made of fireproof sheet |
DE19610532A1 (en) | 1995-03-22 | 1996-11-14 | Rasontec N V By Rabobank Trust | Fire-resistant curtain for public building |
US20120125546A1 (en) | 2009-06-08 | 2012-05-24 | Coopers Fire Limited | Smoke or fire barrier |
EP2428634A1 (en) * | 2010-08-04 | 2012-03-14 | Antonio Checcucci | Support structure for rolling shutters, fast rolling shutter doors or similar closure elements |
DE102011016266A1 (en) | 2011-04-06 | 2012-10-11 | Stöbich Brandschutz GmbH | Fire or smoke protection device |
DE102012000116A1 (en) * | 2012-01-05 | 2013-07-11 | BSM Brandschutz-Manufaktur Deutschland GmbH | Smoke or fire protection device for closing opening in building to reduce spreading of fire and/or smoke, has winding shaft driven by driving apparatus, and receiver including bearing surface, on which winding is rest-supported |
JP2017031674A (en) * | 2015-07-31 | 2017-02-09 | 立川ブラインド工業株式会社 | Intermediate support bracket for rolling screen |
Also Published As
Publication number | Publication date |
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DE102018116644A1 (en) | 2020-01-16 |
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