DE102019103530A1 - Fire or smoke protection curtain - Google Patents

Abstract

The invention relates to a fire or smoke protection curtain (10) with (a) a textile fire protection element (16) which can be brought into a compact storage arrangement and in a protective arrangement in which it counteracts the spread of a fire and / or smoke and ( b) at least one guide element (26, 84) for guiding the fire protection element (16) when bringing the fire protection element (16) from the bearing arrangement into the protection arrangement. According to the invention, it is provided that (c) a clamping element (28, 85, 86) which, in a clamping position in which the clamping element (28, 85, 86) clamps the fire protection element (16) to counteract any bulging, and against the guide element ( 26) seals when the fire protection element (16) is in its protective arrangement and a release position in which the clamping element (28, 85, 86) does not clamp the fire protection element (16) can be brought.

Description

The invention relates to a fire or smoke protection curtain with (a) a textile fire protection element, which can be brought into a compact storage arrangement and in a protection arrangement in which it counteracts the spread of fire and / or smoke and (b) at least one guide element for Guiding the fire protection element when bringing the fire protection element from the bearing arrangement into the protection arrangement, a guide rail which is designed to guide the fire protection element when bringing the fire protection element into the protection arrangement and which is designed to absorb a holding force which counteracts bulging of the fire protection element.

Fire or smoke curtains are used to inhibit the spread of smoke and / or a fire. Fire or smoke protection curtains are often used to close an opening in a wall in the event of a fire. If there is an air pressure difference between the front and the rear of the fire protection element, the at least one guide rail must apply a holding force. The holding force counteracts excessive bulging of the fire protection element.

In order to prevent bulging, it may be necessary to exert considerable forces on the fire protection element. In order to accommodate these, it is known from the prior art to use a piping rod around which the fire protection element is wrapped around the side. The disadvantage here is the high frictional resistance that the fire protection element causes on the keder rod, since this requires a heavy baseboard or some other mechanism to ensure that the fire protection element closes safely.

It is also possible to attach buttons to the lateral edges of the fire protection element, the thickness of which is greater than a slot width of a slot through which the fire protection element engages in the guide rail. The buttons prevent the edge of the fire protection element from slipping out of the guide rail and thus apply the holding force that counteracts the bulging. A disadvantage of such a system is that the fire protection element must be designed to be so stable that the buttons do not tear.

The invention is based on the object of reducing disadvantages in the prior art.

The invention solves the problem by means of a fire or smoke protection curtain with the features of claim 1.

The invention thus solves the problem in particular by means of a fire or smoke protection curtain with (a) a textile fire protection element which can be brought into a compact storage arrangement and in a protection arrangement in which it counteracts the spread of a fire and / or smoke and ( b) at least one guide rail which is designed to guide the fire protection element when the fire protection element is brought into the protective arrangement and which is designed to absorb a holding force which counteracts bulging of the fire protection element, in which (c) the fire protection element has thickenings arranged laterally on the edge, in which (d) a clamping element, in particular a clamping rod, is arranged within the guide rail and in which (e) the guide rail is designed such that the clamping element, in particular the clamping rod, is pressed into a clamping position by the thickenings when the fire protection element bulges out the clamping bar the fire protection zelement stuck.

The advantage of this fire or smoke protection curtain is that a particularly high level of smoke tightness can often be achieved. Because the clamping element, in particular the clamping rod, clamps the fire protection element, there is usually a line or surface contact between the clamping element and the guide element, in particular that of a guide rail. This line or area clamping can lead to a particularly good smoke seal.

It is also advantageous that the holding force is applied over a wide area of the fire protection element, namely over the area that is clamped between the clamping element and the guide element. In contrast to the sole use of buttons, there is no excessive tension and / or notch effect. Reinforcements of the fire protection element are therefore usually unnecessary. Compared to fire or smoke protection curtains according to the prior art, a mechanically less stable fire protection element can therefore often be used, which can either have a higher fire resistance and / or can be easier to manufacture.

It is also advantageous that the fire protection element often shows less wear than when a keder rod is used. The reason for this is that the fire protection element does not have to wrap around the clamping element - unlike when using a keder rod as taught in the prior art, which is a preferred embodiment of the invention, so that often lower forces act on the lateral edge of the fire protection element .

It is also favorable that in many cases only a comparatively small force is necessary to bring the fire protection element out of the bearing arrangement into the protection arrangement. The force that is necessary to bring the fire protection element into the protective arrangement is often applied by a baseboard, which is present according to a preferred embodiment of the invention. The baseboard is - if available - at the lower end of the fire protection element. The smaller the frictional force that has to be overcome, the easier the skirting board can be designed.

A lighter footer enables the use of a smaller motor, which is preferably present, in order to bring the fire protection element out of the protective arrangement into the bearing arrangement. In addition, a brake provided according to a preferred embodiment, which brakes the movement of the fire protection element from the bearing arrangement into the protection arrangement, when a collision of the baseboard with an object, for example a person, is detected, can often be designed to be smaller than with known fire or smoke protection curtains .

In the context of the present description, a fire or smoke protection curtain is understood to mean, in particular, any device that is designed to prevent the spread of fires and / or smoke or to inhibit it sustainably 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 accordance with DIN EN 13501-2 and 3 in particular.

A fire or smoke protection device is therefore fundamentally different from devices that are only suitable for closing openings. The fire or smoke protection device is preferably designed for reversible, in particular repeated, closing and opening. In other words, the fire or smoke protection device can be closed and opened several times.

The fire protection element preferably comprises a fire protection textile and, according to a preferred embodiment, is formed from 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 sufficient period of time to permit the passage of flames and / or smoke, in particular for at least 30 minutes according to FIG EN 1634-1 and EN 1634-3 and or DIN EN 12101-1 to resist. The advantage of using fire protection textiles is the low manufacturing cost. It is thus possible to manufacture the fire protection element from one, two, three or more flat pieces of fire protection textile by joining, in particular sewing.

The fire protection textile preferably comprises mineral fibers, glass fibers and / or wire, in particular made of stainless steel.

The guide element is understood to mean, in particular, a component that restricts the freedom of movement of the fire protection element when it moves out of the bearing arrangement into the protection arrangement. According to a preferred embodiment, a guide element initially extends in a vertical direction. In this case, the guide element is, for example, a guide rail. The fire or smoke protection curtain preferably has two guide rails which each guide the fire protection element on one of the two lateral edges.

Alternatively or additionally, a guide element initially extends in a horizontal direction. In this case, it is advantageous if the fire protection element slides on the guide element when it is brought from the bearing arrangement into the protection arrangement.
The clamping element is understood to mean in particular an object with an aspect ratio of at least 50, in particular of at least 100. The clamping element is preferably prismatic, in particular round. The clamping element is preferably a clamping rod or clamping strip. When a clamping bar is used in the following, a clamping element in general or a clamping strip is always included. The clamping element can consist of solid material or be designed as a tube. The clamping element is preferably made of steel.

The feature that the clamping element can be brought into a clamping position is understood in particular that the clamping element can be moved in such a way that it can assume at least these two positions. In the clamping position, the clamping element clamps the fire protection element. This leads to a sealing of the fire protection element, preferably relative to the guide element, so that smoke cannot flow from one side of an opening that is also closed by the fire protection element to the other. The clamping element can preferably also be brought into a release position in which it does not clamp the fire protection element.

According to a preferred embodiment, the clamping element is designed in such a way that a force which acts on the fire protection element in the normal direction so that the fire protection element bulges leads to the clamping element moving into the clamping position, in particular pulled or pushed. In other words, an increase in the force that acts on the fire protection element in the normal direction leads to an increase in the clamping force.

In particular, the guide element is preferably designed to absorb a holding force which counteracts bulging of the fire protection element. It is possible, but not necessary, for this holding force to be transmitted from the clamping element to the guide element.

According to a preferred embodiment, the fire or smoke protection curtain is smoke-tight according to smoke-tight according to classification s _a and / or s ₂₀₀ according to EN 1634-3 .
According to a preferred embodiment, at least one guide element is a guide rail which is designed to guide the fire protection element when the fire protection element is brought into the protective arrangement. The guide rail is preferably designed to absorb a holding force that counteracts bulging of the fire protection element. It is favorable if the guide rail and the clamping element extend in the vertical direction. According to a preferred embodiment, the fire protection element then has drivers in the form of lateral thickenings.

The clamping element, in particular the clamping rod, is preferably arranged to be movable relative to the guide rail. It is preferred, but not necessary, that the guide rail surrounds the clamping rod, in particular completely, that is to say that the clamping element, in particular the clamping rod, cannot be removed from a broad side of the guide rail. It is possible, but not necessary, for the clamping element to be articulated. In this case the clamping element acts as a flap. The clamping element is preferably not a welt rod. In particular, it is preferably not arranged in a loop of the fire protection element.

The fire or smoke protection curtain preferably comprises two guide elements in the form of guide rails, which are arranged on opposite sides and each guide one side of the fire protection element. The guide rails are preferably mirror-symmetrical to one another.

The clamping element, in particular the clamping rod, is preferably made of metal, in particular steel. The guide element, in particular the guide rail, is preferably made of metal, in particular of sheet steel. The guide element, in particular the guide rail, can be designed in one part, two parts, three parts or in several parts. If the clamping element, in particular the guide rail, is made in one piece, it can be produced by roll profiling or extrusion. As a rule, however, it is more favorable to construct the guide rail from at least two partial sheets.

The property that the clamping element is in a clamping position in which the clamping element clamps the fire protection element to counteract against bulging and seals it against the guide element when the fire protection element is in its protective arrangement, and that the at least one driver is arranged to move the clamping element into the Clamping position, is preferably achieved in that the guide element, preferably the guide rail, (i) an entry slot through which the fire protection element runs, and (ii) a clamping gap that widens away from the slot, the clamping gap is bounded by a first clamping wall and a second clamping wall and wherein the clamping rod is arranged between the clamping walls, i.e. in the clamping gap, the clamping element, preferably the clamping rod, also being arranged between the entry slot and a driver, for example formed by thickenings .

According to a preferred embodiment, the fire or smoke protection curtain has at least one driver which is arranged (relative to the clamping element) for moving the clamping element into the clamping position. The driver is a component or a structure that causes the clamping element to be moved into the clamping position at the latest when the fire protection element is in its protective position and a force acts on the fire protection element which leads to a bulging of the fire protection element.

According to one embodiment of the invention, the at least one driver is formed by at least one thickening of the fire protection element. The thickening of the fire protection element can be formed by a flexible piping on the side edge of the fire protection element. The piping is then so flexible that the fire protection element can be rolled up together with the piping. Alternatively or additionally, the thickenings can be formed by rigid objects fastened to the fire protection element, in particular rivets, buttons or webs, as will be described in more detail below. The thickenings are arranged on the fire protection element in such a way that a bulging of the fire protection element results in the thickenings pressing the clamping element into its clamping position.

The thickenings are preferably arranged at a distance of at least 5 millimeters from the clamping element if there is no bulging force acting on the fire protection element and if it is extends along a plane. The distance is preferably at most 100 millimeters.

Alternatively or additionally, at least one driver is formed by at least one magnetic element, which is preferably attached to the fire protection element. The magnetic element is arranged in relation to the clamping element in such a way that the magnetic element pulls or presses the clamping element into its clamping position when the fire protection element bulges.

The at least one guide element is preferably designed for attachment to or relative to a building wall. This is to be understood as meaning that the guide element cannot move relative to the building when the fire or smoke protection curtain is installed on a building. For example, the guide element is either itself attached to the building, in particular a building wall, or it is attached to a component that is itself attached to the building, in particular the building wall.

The clamping element is preferably designed to press the fire protection element in the direction of the building wall when a force acts on the fire protection element in the normal direction, it being irrelevant which orientation this force has. In other words, the fire protection element is always pressed towards the building wall by the clamping element, regardless of which side of the fire protection element is facing the fire. In this way, the smoke tightness of the fire or smoke protection curtain, which could also be referred to as a fire or smoke protection curtain system, is improved.

When it is said in the present description that a force acts in the normal direction on the fire protection element, what is meant in particular is a force that acts in the geometric center of gravity of the fire protection element when it is in its protective arrangement.

At least one guide element is preferably designed to seal the fire protection element along a horizontally extending sealing surface relative to the building wall. This enables sealing along all four sides, namely on the bottom side by means of a preferably existing skirting board, on both sides by means of a guide element each in the form of a guide rail and upwards by means of the horizontally extending guide element.

In this case, it is favorable if a clamping element extends along a horizontal line. According to one embodiment, the clamping element is held in its release position by a magnet in the form of a permanent magnet. By means of a driver, in particular in the form of a thickening, which is fastened to the fire protection element, the clamping element is brought from the release position into the clamping position.

It is alternatively possible and represents a preferred embodiment that the driver is arranged in the form of the electromagnet in such a way that the clamping element, preferably a clamping rod, falls into the clamping position by deactivating the electromagnet.

In other words, an embodiment of the invention is a fire or smoke protection curtain with (a) a textile fire protection element that can be placed in a compact storage arrangement and in a protective arrangement in which it counteracts the spread of a fire and / or smoke (b) at least one guide element for guiding the fire protection element when the fire protection element is brought from the bearing arrangement into the protection arrangement, (c) a clamping element which is in a clamping position in which the clamping element clamps the fire protection element to counteract any bulging and seals it against the guide element when the fire protection element is in its protective arrangement, and a release position in which the clamping element does not clamp the fire protection element can be brought, and (d) an electromagnet that holds the clamping element in the release position when it is activated, so that the clamping element can be deactivated by de-activating (i.e. by stopping the energization) of the electromagnet in his The clamping position can be brought.

The guide element (preferably the guide rail), the clamping element (preferably the clamping rod) and the at least one driver (preferably the thickened areas) are thus designed in such a way that when the fire protection element bulges, the driver (preferably the thickened areas) rests on the clamping element ( preferably the clamping rod) and this presses against at least one clamping wall, in particular both clamping walls, whereby the fire protection element is clamped. As a result of this clamping, the fire protection element is also sealed relative to the guide element.

According to a preferred embodiment, the clamping element, in particular the clamping rod, is designed to rest against a concave contact area of the guide element, in particular the guide rail, when the clamping element is in particular in the clamping position. In particular, the clamping element, in particular the clamping rod, is arranged to rest against at least one of the clamping walls when the clamping element is in the clamping position. This at least one clamping wall is preferably from the perspective of Clamping elements are concave. There is preferably a surface contact and / or a double line contact of the fire protection element on the guide element and thus a particularly good seal and / or a high clamping effect of the clamping element, in particular the clamping rod.

The drivers are preferably formed in the form of thickenings by rigid objects attached to the fire protection element. These rigid objects can be rivets, buttons or bars, for example. It is favorable if an expansion of the rigid objects in the direction of extent of the guide rail is at most twice a transverse direction of extent transverse to this direction. It is particularly favorable if the rigid objects have an eccentricity of at most 2. This means that the ellipse, which optimally approximates the base area of the rigid objects, has at most an eccentricity of 2. The base area is the area in which the object lies against the fire protection element.

The small eccentricity makes it easier to wind up the fire protection element without affecting the clamping effect of the rigid objects.

It is favorable if the rigid objects have a maximum extension of at most 3 cm. It is also favorable if the minimum extent in a longitudinal direction of the guide rails of guide elements in the form of guide rails or across them is at least 0.5 cm.

A length of the rigid objects is measured in the direction in which the guide rail extends. The width of the rigid objects is measured perpendicular to this in the plane in which the fire protection textile extends. The height of the rigid objects is measured in the normal direction to the fire protection element. The width is preferably at least as great as the length.

The fire or smoke protection curtain preferably has a winding shaft for winding up the fire protection element.

It is favorable if the winding shaft has a longitudinal extension of the winding shaft and has a recess in the area in which the thickenings are formed. When being wound up, the thickenings form a larger roll than the area of the fire protection element that has no thickenings. The setback means that the maximum diameter of the wound fire protection element, which is present at the point where the thickenings are formed, does not increase in relation to the minimum diameter of the roll which is formed in an area where there are no thickenings gets big.

The quotient of the maximum winding diameter and the minimum winding diameter of the fire protection element in the wound state is preferably a maximum of 2.

A clamping element diameter of the clamping element is preferably between 6 millimeters and 16 millimeters.

It is favorable if the guide rail has an entry slot through which the fire protection element runs in the direction of the clamping rod, the entry slot having a clear width that is at most 0.9 times the clamping rod diameter and / or at least 0.1 times the diameter of the clamp rod.

The fire protection element preferably has a thickness between 0.2 and 1.2 millimeters per layer. The fire protection element can be single-layer, double-layer, three-layer or multi-layer. It is beneficial if the number of layers is less than eight.

It is favorable if the fire protection element between the first guide rail and the second guide rail is not reinforced. A reinforcement is understood in particular to be a structure that extends in the width direction of the fire protection element, i.e. from one guide rail to the second, the reinforcement not extending continuously over a height direction, i.e. in the direction in which the fire protection element is brought into the bearing arrangement, especially wound up. An unreinforced fire protection element is easy to manufacture, which is advantageous.

The guide rail preferably has a depth, which is measured in the normal direction to the fire protection element, which is at most 50 mm. Flat guide rails are advantageous because the fire or smoke protection curtain can be integrated inconspicuously in a building in this way.

The at least one guide rail usually runs vertically, but can also run horizontally or at an angle to the vertical.

The fire protection textile preferably comprises a heat absorbing material which reacts above an activation temperature to absorb heat and in particular gives off water vapor. The activation temperature is preferably less than 200 °, in particular less than 250 °. For example, plaster of paris, which has two activation temperatures, namely at 147 ° C. and 131 ° C., comes into consideration. Such a heat absorption material in the fire protection textile has the advantage that the temperature on the The outside of the fire protection textile cannot noticeably exceed the activation temperature, since heat is absorbed beforehand by the heat absorption material.

The heat absorption material can be a material that releases water when the activation temperature is exceeded. It can be minerally bound water, in particular water of crystallization, and / or absorbed water, as it exists, for example, in a superabsorbent. The heat absorption material can also be a material that chemically reacts endothermically.

The activation temperature is understood in particular to be the lowest temperature for which it applies that after one hour at this temperature over 90 percent by mass of the cooling material has reacted while absorbing heat. It is favorable if the cooling material reacts above the activation temperature, for example by releasing crystal water and / or by splitting off water. Water has a high heat of evaporation, so that a lot of heat is absorbed when it evaporates. The activation temperature is preferably at least 90 ° C and / or at most 250 ° C.

An independent object of the present invention is a generic fire or smoke protection curtain, which has (c) a first wall anchor for fastening to a building and (d) at least one second wall anchor for fastening to the building, the guide elements, preferably in the form of at least a guide rail is attached to at least one wall anchor and is guided in the longitudinal direction of the guide element. It is advantageous, but not necessary, if this fire or smoke protection curtain also has the features of claim 1. The preferred embodiments described above also apply to this subject matter of the present invention. The wall anchors have the advantage that the fire or smoke protection curtain retains a particularly high level of smoke tightness in the event of a fire. The background to this is as follows.

In the event of a fire, the guide elements, in particular the guide rails, are heated to high temperatures. As a result, these expand relatively more than the building to which they are attached. That leads to faults. In the case of fire or smoke protection curtains according to the state of the art, the problem is partially solved in that the guide rails are mounted in so many places and so firmly on the building that the resulting distortions remain tolerably small. However, this means a comparatively high installation effort.

By using the wall anchors and their use to guide the guide elements, in particular the guide rails, the guide rail enables the guide rail to expand in the event of a fire without excessively large constraining forces arising.

This in turn means that the geometric structure of the guide rail is usually hardly influenced. In other words, there is significantly less delay. This in turn means that the sealing of the fire protection element on the guide element is improved.

The feature that the guide element is guided on the wall anchor is understood in particular to mean that the guide element can only move in one degree of freedom relative to the wall anchor, namely in the translational degree of freedom along the direction of extension of the guide element.

The feature that the guide element, in particular the guide rail, is guided on the wall anchor is also understood, in particular, that heating of the guide element results in it moving relative to the wall anchor.

According to a preferred embodiment, the guide element is so firmly connected to the wall anchor that a force of at least 10 Newtons, in particular at least 50 Newtons, preferably at least 100 Newtons, must be applied to the guide element before it moves relative to the wall anchor. The guide element is preferably fastened to the wall anchor by means of a connector, in particular a screw, a pin or a rivet that engages in an elongated hole.

According to a preferred embodiment, the wall anchor has a contact area for contact with the building and a fastening area for fastening the guide element, the fastening area running transversely to the contact area.

In the technical area, the fastening area preferably runs perpendicular to the contact area. This is understood in particular to mean that it is possible, but not necessary, for the fastening area to extend in the mathematical sense perpendicular to the contact area, in particular deviations of, for example, ± 5 ° are tolerable.

If the fastening area runs transversely to the contact area, then a clear width of an elongated hole in the fastening area by means of which the guide rail is guided on the wall anchor according to a preferred embodiment also runs transversely to the contact area. It is then - according to one Preferred embodiment - possible that the guide element is attached to the wall anchor, in the present case to the fastening area of the wall anchor, by means of the connector. In this way, the guide element is firmly attached to the building, that is to say that the guide element cannot be removed from the building in the normal direction to the fire protection element. At the same time, the guide element can expand in the direction of extent of the guide element in the event of a fire.

According to a preferred embodiment, the wall anchor has a wall fastening part on which the contact area is formed and a guide element fastening part to which the guide element is fastened. The wall fastening part and the guide element fastening part can be brought, preferably reversibly, into a state in which they can be moved relative to one another.

The guide element fastening part is preferably screwed to the wall fastening part. With this configuration, the guiding function of the wall anchor is separated from the positioning function of the wall anchor. In other words, the wall mounting part can first be attached to the building. The guide element fastening part can then be fixed or screwed to the wall fastening part in such a way that the guide element is firmly connected to the building on the one hand and can expand without distortion in the event of a fire.

According to a preferred embodiment, the guide element has (a) a fastening strip for fastening to the building and (b) a cover strip for fastening to the fastening strip, with (c) the fastening strip having a coupling structure for positively connecting the fastening strip to the cover strip. Alternatively or additionally, the cover strip has a complementary coupling structure for the form-fitting connection of the cover strip with the fastening strip. This often enables particularly simple assembly. In addition, this usually results in a firm mechanical connection.

According to a preferred embodiment, the fire or smoke protection curtain has a housing which surrounds the fire protection element when it is in its bearing arrangement. It is favorable if the at least one guide element protrudes into the housing and / or ends on a floor on which a baseboard of the fire protection element rests when the latter is in its protective arrangement.

According to the invention is also a building with a building opening and a fire or smoke protection curtain according to the invention, which is arranged to close the building opening when the fire protection element is in its protective arrangement.

• 1 eine schematische Ansicht eines erfindungsgemäßen Brand- oder Rauchschutzvorhangs,
• 2a eine Teil-Ansicht einer Führungsschiene des Brand- oder Rauchschutzvorhangs gemäß 1 in einer perspektivischen Ansicht,
• 2b die Führungsschiene gemäß 2a, bei der eine Abdeckleiste der Führungsschiene entfernt ist, um den Blick auf einen Wandanker zu ermöglichen,
• 3a einen Blick von oben auf die Führungsschiene und die Klemmstange, wobei das Brandschutzelement nicht ausbaucht,
• 3b einen Querschnitt durch die Führungsschiene gemäß der Situation in 3a,
• 3c die Führungsleiste und die Klemmstange gemäß 3b, bei der das Brandschutzelement ausbaucht,
• 4 die Führungsleiste gemäß 2b, wobei das Brandschutzelement weggelassen ist,
• 5a eine perspektivische Ansicht der Führungsschiene,
• 5b eine Ansicht auf eine wandseitige Seite der Führungsschiene und
• 6 zeigt die Abdeckleiste der Führungsleiste gemäß der 2a bis 5b.
• 7 zeigt in den 7a und 7b Teil-Ansichten eines erfindungsgemäßen Brand- oder Rauchschutzvorhangs, in dem ein Gehäuse und ein horizontal ausgerichtetes Leitelement zu sehen ist,
• 8 zeigt in den 8a und 8b jeweils eine weitere Ausführungsform von Mitnehmern eines erfindungsgemäßen Brand- oder Rauchschutzvorhangs,
• 9 zeigt in den 9a, 9b und 9c weitere Ausführungsformen für Mitnehmer erfindungsgemäßer Brand- oder Rauchschutzvorhänge,
• 10 zeigt in den 10a und 10b eine weitere Ausführungsform eines Mitnehmers und
• 11 zeigt weitere Ausführungsformen von Mitnehmern erfindungsgemäßer Brand- oder Rauchschutzvorhänge.

The invention is explained in more detail below with reference to the accompanying drawings. It shows

• 1 a schematic view of a fire or smoke protection curtain according to the invention,
• 2a a partial view of a guide rail of the fire or smoke protection curtain according to 1 in a perspective view,
• 2 B the guide rail according to 2a , in which a cover strip of the guide rail has been removed to allow a view of a wall anchor,
• 3a a view from above of the guide rail and the clamping rod, whereby the fire protection element does not bulge,
• 3b a cross section through the guide rail according to the situation in FIG 3a ,
• 3c the guide rail and the clamping rod according to 3b in which the fire protection element bulges,
• 4th the guide rail according to 2 B with the fire protection element omitted,
• 5a a perspective view of the guide rail,
• 5b a view of a wall side of the guide rail and
• 6 shows the cover strip of the guide strip according to FIG 2a to 5b .
• 7th shows in the 7a and 7b Partial views of a fire or smoke protection curtain according to the invention, in which a housing and a horizontally aligned guide element can be seen,
• 8th shows in the 8a and 8b each a further embodiment of drivers of a fire or smoke protection curtain according to the invention,
• 9 shows in the 9a , 9b and 9c further embodiments for drivers of fire or smoke protection curtains according to the invention,
• 10 shows in the 10a and 10b another embodiment of a driver and
• 11 shows further embodiments of drivers of fire or smoke protection curtains according to the invention.

1 shows a fire or smoke protection curtain according to the invention 10 opening a building opening 12th of a building 14th closes when a Fire protection element 16 is in its bearing arrangement. The designation fire or smoke protection curtain should in no way exclude the fact that this can prevent both a fire and smoke from spreading. The conjunction “or” is to be understood as non-exclusive.

The fire or smoke protection curtain 10 has a winding shaft 18th on which the fire protection element 16 is windable. Is the fire protection element 16 completely on the winding shaft 18th wound up, it is in its storage arrangement. The opening of the building 12th is not part of the fire protection element in this state 16 locked.

The winding shaft 18th is from an engine 20th driven, which is in particular an electric motor, in particular a low-voltage electric motor. The motor 20th is controlled by a control unit 22nd controlled, which is in contact, for example, with a fire alarm control panel. If the fire alarm system reports a fire or if the power fails, an electric brake is released 114 or the holding force of the motor 20th not applicable. This causes the fire protection element to move 16 in a closing direction S. . The closing direction S. usually runs downwards, but it can also run horizontally or diagonally downwards.

On in the closing direction S. the front end, usually at the bottom, is the fire protection element 16 with a baseboard 24 connected. The fire protection element 16 is in a first guide element in the form of a first guide rail 26.1 and second guide element in the form of a second guide rail 26.2 laterally guided. Acts a pressure force F _D towards a normal N near the geometric center of gravity G on the fire protection element 16 so bring the guide rails 26.1 , 26.2 one holding force each F _H1 , F _H2 on the fire protection element 16 which counteracts any further bulging. The guide rails 26.1 , 26.2 are mirror-symmetrical to each other. The parts of the first guide rail 26.1 have the suffix ".1", the corresponding part of the second guide rail has the suffix ".2".

2a shows a perspective view of part of the guide rail 26.1 . The guide rail 26.1 has a direction of extent E ₂₆ , along which a length L _{26 of} the guide rail 26.1 is measured. A width B ₂₆ is measured perpendicular to the direction of extent E ₂₆ . A depth T ₂₆ is measured perpendicular to both the extension direction E ₂₆ and the width B ₂₆ and runs in the direction of the normal N (please refer 1 ) on the fire protection element 16 if this is not full. The width B ₂₆ is preferably between 30 and 60 mm, the depth T ₂₆ between 10 and 30 cm.

Inside the guide rail 26.1 is a first clamping element in the form of a first clamping rod 28.1 movably arranged. Whenever a clamping rod is referred to in the following, then clamping elements are always included in a very general way. This is to be understood as meaning that the clamping rod 28.1 within a predetermined range of the guide rail 26.1 can move freely, preferably the clamping rod 28 the guide rail 26.1 however do not leave. It is possible, but not necessary, that the clamping rod 28 on the guide rail 26.1 is attached in such a way that it is only freely movable within a predetermined range, for example by the fact that it

The guide rail 26.1 includes a fastening strip 30.1 that by means of a wall anchor 32 (please refer 2 B) on the building 14th is attached. The guide rail 26.1 also includes a cover strip 34.1 either on the mounting strip 30.1 or also on the wall anchor 32 is attached.

2 B shows the fire protection element 16 , the driver 36.i (i = 1, 2, ...) in the form of thickenings 36.i having. Whenever thickenings are mentioned in the following, drivers are generally also meant. In the present case, the thickenings are 36.i formed by rigid objects such as rivets. The drivers 36.i , in the present case the thickenings, are spaced apart D ₃₆ from each other, which is preferably at least 30 mm and at most 500 mm.

The drivers 36.i In the present case, the rigid objects, for example the rivets, have a length L ₃₆ , which is preferably between 5 mm and 15 mm. A width B ₃₆ is preferably also between 5 mm and 15 mm. It should be pointed out that the rigid objects do not have to be rivets; objects that are glued or sewn on, for example, or objects that are in a lateral envelope of the fire protection element are also possible 16 are arranged and act there as local piping.

The clamp rod 28.1 has a clamping element diameter d between 7 and 16 mm and is made of metal, for example steel, in particular stainless steel.

3a shows a view from above of the guide rail 26.1 . It can be seen that the wall anchor 32 in an investment area 38.1 on the building 14th is applied. At an attachment area 40.1 is the guide rail 26.1 attached. In the present case, the fastening strip is 30.1 the guide rail 26.1 at the fastening area 40.1 by means of a screw 42a attached.

The wall anchor 32 can be formed in one piece, in particular in one piece. One piece is understood here to be freedom from joints. In the present embodiment, the wall anchor 32 in two parts and comprises a wall mounting part 44.1 and a guide rail attachment part 46.1 that is on the wall mounting part 44.1 by means of the screw 42 is attached.

3a also shows that the first clamping wall 52.1 a first wall section 51.1 and a second wall section 53.1 has, which are angled to each other. The clamping bracket α is measured in this case to the wall section that is closest to the part of the fire protection element 16 which is the building opening 12th (see. 1 ) closes.

2 B shows that the guide rail 26.1 , in the present case the fastening area 40.1 , a guide slot 48a having. Through this guide slot 48a engages the screw 42a ( 3a) through. How 2 B also shows, as provided in the present embodiment, the guide rail 26.1 a second guide slot 48b have that of a second screw 42b is penetrated. The second guide slot 38b and the second screw 42b however, they are dispensable. But it is also possible that there are more than two guide slots and more than two screws.

In 3a can be seen that the thickenings 36.i , here: the thickening 36.1 , from the clamp rod 38.1 is spaced when the fire protection element 16 not bulging. The fire protection element 16 extends through an entry slot 50.1 into the guide rail 26th inside. A first clamp wall 52.1 and a second clamp wall 54.1 limit a clamping gap 56.1 . The clamp rod 28.1 is between the two clamping walls 52.1 , 54.1 in the clamping gap 56.1 arranged. The clamp rod 28.1 is also located between the thickenings 36.i and the entry slot 50.1 .

3b shows the same situation in cross section. It can be seen that the second clamping wall 54.1 on a fixing projection 58 a support structure 58.1 which prevents the clamping rod 28.1 from the clamping gap 56.1 escapes. In the present case, the holding structure is 58.1 by a fixing projection in one of the clamping walls, here: the second clamping wall 54.1 , educated.

3b also shows that the guide rail 26th a concave contact area 60.1 Has. In the present case is the investment area 60.1 on the first clamp wall 52 educated. A tensile force Fz acts on the fire protection element 16 , for example because there is a compressed air difference between one side of the building 62 of the fire protection element 16 and a side facing away from the building 64 is applied, the clamping rod 28.1 from the thickenings 36.i in the in 3c shown clamping position pressed. In this clamping position, the clamping rod pushes 28.1 the fire protection element 16 firmly so that a side edge 66.1 of the fire protection element 16 that is inside the guide rail 26.1 is arranged from the guide rail 26.1 is pulled out.

3b shows that the entry slot 50.1 a clear width S. Has. In the present case, the slight width Wein is quarter of the clamp rod diameter d . A fat one b a fire protection textile from which the fire protection element 16 is constructed, is 0.7 mm in the present case.

3c shows the clamp rod 28.1 in their clamping position in which they hold the fire protection element 16 stuck. The clamping rod is in this clamping position 28.1 at one point on the clamping walls 52 , 54 in which this a clamping bracket α lock in. The clamping bracket α is preferably between 7 and 27 °, preferably between 10 and 20 °.

4th shows a perspective view of the guide rail 26.1 with the wall anchor 32 to attach to the building 14th , of which only part of a wall is shown for the sake of clarity. 4th also shows that the fire or smoke protection curtain has a second wall anchor 32` has, like the first wall anchor 32 is constructed. The components of the second wall anchor 32` become like the components of the first wall anchor 32 denotes, the corresponding reference numerals bearing an apostrophe. A distance A between adjacent wall anchors 32 , 32` is preferably between 50 cm and 150 cm.

The guide rail 26.1 can do what is possible and preferred, but not necessary, on one floor 68 get up. The guide rail expands 26.1 during a fire, it shifts relative to the wall anchors 32 , 32 ' . It comes with the in 4th embodiment shown for a movement of the fastening strip 30.1 , the guide slots 48a , 48b , 48a ' , 48b` up to the respective attachments 42 , in this case the screws 42a , 42b , 42a ' , 42b` allow only a movement in one degree of freedom, namely along a z-direction, that of the extension direction E _{26 of} the guide rail 26.1 corresponds. Both a linear movement in the x-direction (see 2a) as well as in the y-direction is through the wall anchor 32 prevented.

4th shows that the fastening strip 30.1 a coupling structure 70 has that with a Complementary coupling structure 74 the cover strip 34.1 (please refer 5b) cooperates so that the fastening strip 30.1 and the cover strip 34.1 interlock positively and are thus attached to one another.

5a shows a perspective view of the guide rail 26.1 without the cover strip 34.1 (please refer 5b) .

5b shows a view of a wall-side side of the guide rail 26.1 . It's a mounting hole 72 of the wall anchor 32 to recognize by means of the wall anchor 32 on the building 14th (please refer 5a) is attached. For this purpose, for example, a screw is inserted through the mounting opening 72 that led into the building 14th intervenes.

6 shows the cover strip 34.1 with the complementary coupling structure 74 . The complementary coupling structure 74 and / or the coupling structure 70 preferably have at least one projection, which creates a form-fitting connection between the fastening strip 30th and the cover strip 34 causes.

7a shows a housing 76 that is the winding shaft 18th houses. The case 76 is on a building wall 78 of the building 14th attached, for example screwed. 7a shows that the fire protection element 16 on one side of the winding shaft on the building side 18th is handled. In other words, there is a separation point 80 , on which the part of the fire protection element 16 from a wrap 82 solves that through the part of the fire protection element 16 is formed, which is still on the winding shaft 18th is wound on the building-side half of the roll 82 . Would a vertical plane through the axis of rotation of the winding shaft 18th placed, so is the separation point 80 in the cavity on the building side, which is delimited by the level.

The fire or smoke protection curtain comprises a horizontal guide element 26th that as a guide bar 84 is trained. The guide bar 84 extends in the horizontal direction. On the guide bar 84 the fire protection element is running 16 from. This guides the guide bar 84 the fire protection element 16 .

The fire or smoke protection curtain 10 also includes a second clamping element 28.3 , in the present case as a clamping rod 86 is trained. The clamp rod 86 runs in the horizontal direction and, as with the in 7a embodiment shown, on the fire protection element 16 be attached.

7a shows the clamping element 28 in the form of the horizontal clamping rod 86 in its clamped position. In this clamping position, the clamping rod pushes 86 the fire protection element 16 , as in 7b shown against a first horizontal clamping wall 88 relating to the fire protection element 16 on the side facing the building. The horizontal clamping bar 86 is supported by a second horizontal clamping wall 90 from.

The clamping angle v is between 30 ° and 60 °. An angle of inclination v of the second horizontal clamping wall 90 lies between 45 ° and 70 °.

The clamp wall 86 extends along a plane of extension E ₉₀ .. The angle of inclination v is measured between the plane of extension E ₉₀ and the horizontal plane H.

The clamp rod 86 is by a driver 36 pressed into the clamping position by a thickening 92 is formed. The thickening 92 is in turn formed by a push rod attached to the fire protection element 16 is attached. For example, the push rod 92 in a loop made of textile, in particular fire protection textile, added to the fire protection textile 16 attached, for example sewn on.

In the in the 7a and 7b The position shown presses the driver 36 in the form of thickening 92 on the clamping element 28.3 in the form of the clamping rod 86 which in this way turn the fire protection element 16 stuck. This results in a smoke-tight seal of the fire protection element 16 on the building wall 78 .

The first horizontal clamp wall 88 is smoke-proof with the building wall 78 connected. Smoke coming from the building side of the fire protection element 16 on the side of the fire protection element facing away from the building 16 should flow, would therefore have to pass the point at which the clamping element 28.3 the fire protection element 16 clamped and thereby seals.

It should be noted, however, that the driver 36 is unnecessary if the clamping rod 86 is sufficiently heavy. This is especially the case when there is a mass of the clamping rod 86 or generally the horizontal clamping element 28.3 , is at least 0.5 kilograms per meter. This specific mass is preferably less than 3 kilograms per meter.

The 7a , 7b show that the guiding element 26th on a holder 94 is attached to the winding shaft 18th at least half embraced, so that a drainage surface of the guide bar 84 at which the fire protection element 16 on the guide element 26th expires, is arranged on the building side. Since also the driver 36 in the form of thickening 92 is arranged on the side of the fire protection element facing away from the building, is thus ensured that the clamping element 28.3 the fire protection element 16 pushes on the building wall.

8a shows an alternative embodiment of the driver 36 . In the in 8a The embodiment shown is the driver 36 through a metal strip 96 formed on the fire protection textile 16 is attached, for example positively or by means of an adhesive connection. For example, the sheet metal strip 96 sewn on, screwed on, riveted or glued on.

8b shows a further embodiment of a driver 36 in the form of a thickening that is created by a double felled seam 98 is made. In other words, the driver is formed by an area in which the fire protection element has more layers than outside the area in the driver 36 exists.

9a shows a lateral delimitation which limits the displacement in the longitudinal direction of the otherwise freely movable clamping element. An alternative embodiment of the clamping element is shown 28.3 that as a terminal strip 85 is trained.

The terminal block 85 has an underside that of the second clamping wall 90 is facing and is flat. This prevents the clamping element from rotating 28.3 .

9b shows that the first clamp wall 88 a first wall section 100 and a second wall cut 102 having over an edge region 104 are interconnected. An inlet angle ζ between a level E ₁₀₀ , along which the first wall area is 100 extends on the one hand and an inlet level Ez, along which the fire protection element extends 16 in the area between the separation point 80 (see. 7a) and a contact point K in which the fire protection textile 16 Contact with the clamping element 28.3 has lies between ζ = 0 ° to ζ = 15 °.

9c shows that an offset V between a closure level Ev, along which the fire protection element 16 extends in the area in which there is the building opening 12th (see. 1 ) closes, on the one hand and the second wall section 102 on the other hand is preferably between -5 to 5 mm.

10a shows a further embodiment of a driver according to the invention 36 by a magnetic element 106 is formed in the form of a magnetic strip, which with the fire protection element 16 connected, in particular glued or positively connected, for example sewn or riveted. The clamping element 28.3 in the form of the clamping rod 86 is ferromagnetic in this case, can be magnetized or non-magnetized.

Will the fire protection element 16 brought from a positional arrangement into its protective arrangement, the driver happens 36 the clamping element 28.2 , pulls the clamping element 28.3 from its storage position, which is in 10a is shown in its clamping position, which is shown in 10b is shown. Will the fire protection element 16 brought from its protective arrangement into its positional arrangement, the driver pulls 36 the clamping element 28.3 back to its storage position. It comes in a hollow 108 to lie.

11a shows a further detail of a fire or smoke protection curtain according to the invention, in which the clamping element 28.3 in the form of the clamping rod 86 by means of a magnet 110 is held in its storage position. Passed the driver 36 the clamping element 28.3 so it pushes it out of the effective area of the magnet 110 so that it comes into its clamping position.

11b shows a further detail of a fire or smoke protection curtain according to the invention, in which the clamping element 28.3 by means of an electromagnet 112 is held. The electromagnet 112 is from the control unit 22nd (please refer 1 ) energized, which has a battery. In the event of a fire, i.e. if a fire alarm is triggered or if the external power supply to the control unit 22nd interrupted, the control unit triggers 22nd one in 1 drawn brake 114 or ends the current supply to the motor 20th so that the fire protection element 16 automatically passes from its bearing arrangement into the protective arrangement.

Is the fire protection element 16 in its protective arrangement, which is determined, for example, by the fact that a predetermined time has elapsed or that a sensor determines that the fire protection element 16 is in its storage arrangement, the control unit terminates 22nd energizing the electromagnet 112 . This causes the clamping element to fall 28.3 in its clamping position. In the embodiments according to 11a and 11b is the clamping element 28.3 each in the form of the clamping rod 86 ferromagnetic, but usually not magnetized.

List of reference symbols

10

Fire or smoke protection curtain

12th

Building opening

14th

building

16

Fire protection element

18th

Winding shaft

20th

engine

22nd

Control unit

24

Baseboard

26th

Guide element guide rail

28

Clamping element, clamping rod

30th

Fastening strip

32

Wall anchor

34

Cover strip

36

Driver, thickening

38

Investment area

40

Attachment area

42

Fastening screw

44

Wall mounting part

46

Guide rail fastening part

48

Guide slot

50

Entry slot

52

first wall section, first clamping wall

54

second wall section, second clamping wall

56

Clamping gap

58

Holding structure / fixing protrusion

60

Investment area

62

building side

64

side facing away from the building

66

edge

68

ground

70

Coupling structure

72

Assembly opening

74

Complementary coupling structure

76

casing

78

Building wall

80

Separation point

82

Wrap

84

Guide bar

85

Terminal block

86

horizontal clamp rod

88

first horizontal clamp wall

90

second horizontal clamping wall

92

thickening

94

holder

96

Sheet metal strips

98

Double lap seam

100

first wall section

102

second wall section

104

Edge area

106

Magnetic element

108

trough

110

magnet

112

Electromagnet

114

brake

α

Clamping bracket

ζ

Inlet angle v inclination angle

A.

Distance between the wall anchors

B.

width

b

thickness

D ₃₆

Distance between neighboring thickenings

d

Clamping element diameter

E.

Direction of extension

E _Z

Inlet level

E ₉₀

Extension plane

E _V

Closure level

F _D

Compressive force

F _H1

Holding structure

F _Z

traction

H

Horizontal plane

i

Counting index

K

Contact point

L.

location

N

Normal

S.

Closing direction

T

depth

V

Offset

W.

clear width

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Non-patent literature cited

• EN 1634-1 [0015]
• EN 1634-3 [0015, 0022]
• DIN EN 12101-1 [0015]

Claims (16)

Fire or smoke protection curtain (10) with (a) a textile fire protection element (16) which - can be brought into a compact storage arrangement and - in a protective arrangement in which it counteracts the spread of a fire and / or smoke and (b) at least one guide element (26, 84) for guiding the fire protection element (16) when bringing the fire protection element (16) from the bearing arrangement into the protection arrangement, characterized by (c) a clamping element (28, 85, 86) which is in a clamping position in which the clamping element (28, 85, 86) clamps the fire protection element (16) to counteract a bulging and seals it against the guide element (26) when the fire protection element (16) is in its protective arrangement, and a release position in which the clamping element ( 28, 85, 86) the fire protection element (16) does not clamp, can be brought. Fire or smoke protection curtain (10) Claim 1 , characterized by at least one driver (36, 92, 96, 98) which is arranged to move the clamping element (28, 85, 86) into the clamping position. Fire or smoke protection curtain (10) Claim 2 , characterized in that the at least one driver (36) is formed by (a) at least one thickening (36.1, 36.2) of the fire protection element (16) and / or (b) at least one magnetic element (106) is formed and the clamping element (28 , 85, 86) is arranged to be pulled and / or pressed into a clamping position by the magnetic element (106) when the fire protection element (16) bulges. Fire or smoke protection curtain (10) according to one of the preceding claims, characterized in that (a) the at least one guide element (26, 84) is designed for fastening relative to a building wall (78) and (b) the clamping element (28, 85) , 86) is arranged for pressing the fire protection element (16) in the direction of the building wall (78). Fire or smoke protection curtain (10) according to one of the preceding claims, characterized in that (a) at least one guide element is designed to seal the fire protection element along a horizontally extending sealing surface and that (b) the clamping element (28, 85, 86) extends along it a horizontal extends. Fire or smoke protection curtain (10) according to one of the preceding claims, characterized in that (a) at least one guide element is a guide rail (26) which - is designed to guide the fire protection element (16) when the fire protection element (16) is brought into the Protective arrangement and which - is designed to absorb a holding force which counteracts bulging of the fire protection element (16), (b) the fire protection element (16) has thickenings (36.1, 36.2) on the side at the edge and (c) the clamping element (28, 85) , 86) is arranged within the guide rail (26). Fire or smoke protection curtain (10) Claim 2 , characterized in that the clamping element is a clamping rod (28, 85, 86) and the clamping rod (28) is designed to rest against a concave contact area (38) of the guide element, in particular in the form of a guide rail (26), when the clamping element (28, 85, 86) is in the clamping position. Fire or smoke protection curtain (10) according to one of the preceding claims, characterized in that the thickenings are formed by rigid objects fastened to the fire protection element (16), in particular rivets, buttons or webs. Fire or smoke protection curtain (10) according to one of the preceding claims, characterized in that a clamping rod diameter (d) of the clamping rod (28, 85, 86) is between 6 mm and 16 mm. Fire or smoke protection curtain (10) Claim 9 , characterized in that - the guide rail (26) has an entry slot (50) through which the fire protection element (16) runs into the guide rail (26) and that - the entry slot (50) has a clear width (W) which is at most 0.9 times the clamping rod diameter (d) and / or at least 0.1 times the clamping rod diameter (d). Fire or smoke protection curtain (10) according to one of the preceding claims, characterized in that - the fire protection element (16) has a thickness between 0.2 and 1.2 millimeters and / or - the fire protection element (16) between the first guide rail (26.1 ) and the second guide rail is not reinforced and / or - the guide rail (26) has a depth (T) that is at most 50 millimeters. Fire or smoke protection curtain (10) according to the preamble of one of the preceding claims, characterized by (a) a first wall anchor (32.1) for fastening to a building (14) and (b) at least one second wall anchor (32.2) for fastening to the Building (14), (c) wherein the guide rail (26) is attached to at least one wall anchor (32) and is guided in the longitudinal direction of the guide rail (26). Fire or smoke protection curtain (10) Claim 12 , characterized in that the at least one wall anchor (32) (a) has a contact area (38) for placing on the building (14) and (b) has a fastening area (40) for fastening the guide rail (26), (c) wherein the fastening area (40) runs transversely to the contact area (38). Fire or smoke protection curtain (10) Claim 12 or 13th , characterized in that the wall anchor (32) (a) a wall fastening part (44) on which the contact area (38) is formed, and (b) a guide rail fastening part (46) on which the guide rail (26) is attached, has. Fire or smoke protection curtain (10) Claim 12 or 13th , characterized in that the guide rail (26) has (a) a fastening strip (30) for fastening to the building (14) and (b) a cover strip (34) for fastening to the fastening strip (30), (c) the fastening strip (30) have a coupling structure (70) and / or the cover strip (34) have a complementary coupling structure (74) for connecting the fastening strip (30) and cover strip (34). Building (14) with (a) a building opening (12) and (B) a fire or smoke protection curtain (10) according to one of the preceding claims, which is arranged to close the building opening (12) when the fire protection element (16) is in its protective arrangement.

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