EP2840223B1 - Roller shutter, fire-resistant curtain and fireproof roller shutter - Google Patents

Description

The present invention relates to a roller shutter with a roller shutter, comprising a plurality of mutually hinged roller shutter slats, with opposite guide rails, which guide the roller shutter during opening and closing of the shutter and kept in the closed state, and with a mechanism for raising and lowering the roller shutter slats. The invention further relates to a fire curtain and a fire shutters.

Such roller shutters are generally known and are used, for example, to darken or protect windows or balcony doors of privately or commercially used buildings. The roller shutter blades of such known shutters are usually made of wood, plastic or aluminum and therefore do not provide sufficient safety reasons necessary protection against an erupting fire or unwanted air or gas flows, e.g. in a hotel, public building, canteen, workshop, clinic or restaurant. Furthermore, such shutters usually offer no or only a small burglary and sound insulation.

The FR 2514816 shows a shutter that cooperates with a seal. Further prior art is from the documents EP 1 029 557 A1 . US 6,357,507 . DE 92 08 669 U1 and EP1491712 A2 known.

The invention is therefore an object of the invention to provide a roller shutter, for use on windows, doors, gates or similar passage openings is suitable and has a simple structure and improved protection against unwanted air or gas flows even in case of fire.

To solve the problem, a roller shutter with the features of claim 1 is provided.

In particular, according to the invention a roller shutter is provided, with a roller shutter comprising a plurality of mutually hinged roller shutter slats, with opposite guide rails that guide the roller shutter during opening and closing of the shutter and kept in the closed state, and with a mechanism for raising and lowering the roller shutter slats, with the particular feature that seals are provided which are designed and arranged to minimize or prevent flows between the roller shutter slats and the guide rails in the closed state, preferably always. According to the invention a device is provided which accomplishes the closing out of the seals when closing, preferably at the end of the closing movement of the shutter and wherein the device for each seal has at least one leaf spring, at least one sliding element and at least one support rail, which are arranged in a mounting rail.

The fact that seals are provided which minimize or prevent flows between the roller shutter blades and the guide rails when the shutter is in the closed state enables the use of these roller shutters in areas where such undesired flows are to be prevented. Such areas include z. B. Clean rooms, where currents should be prevented because they could contaminate the air in the clean rooms with particles, hospitals, where the spread of viruses or bacteria to be prevented, commercial kitchens, eg in schools, where the spread of odors or smoke prevented should be, in principle, wherever air or gas flows can lead to unwanted effects.

Furthermore, such seals can also contribute to the fact that in burning buildings, the normally toxic fire air does not escape to the outside, this has the consequence that the escape routes are designed safer on the outside of the building as such, as these escape routes to at least reduced with smoke can be contaminated. In such a case, the people who are in neighboring buildings are not necessarily in the same rush be evacuated, since the smoke propagation is at least substantially prevented or minimized.

Preferably, the seals allow the flows between the roller shutter blades and the guide rails are always minimized or prevented in the closed state. This means that the seals seal the roller shutter each time the shutter is closed. This in turn means that such an arrangement allows a multiple, in particular regular daily speaking, opening the shutter.

From the EP 1 594 968 B1 For example, a roller shutter is known that can prevent air currents by, in the event of fire, swells a strip of PROMASIL and so seals the guide rail against the roller shutter lamellae. However, the strip made of PROMASIL is designed for single use only, in case of fire. The shutter according to EP 1 594 968 B1 Nor can it be used to prevent the passage of, for example, smoke or unwanted odors, or airborne particles through the opening which the shutter is to seal, when no fire is present.

Cold smoke arises z. B. in Schwellbränden or electronics fires, or even if a fire spreads slowly or is kept in check, z. B. when a sprinkler system minimizes the spread of the fire at least. A seal according to the present invention causes the smoke does not even pass through the opening to be protected and therefore does not lead to smoke poisoning.

The seals are typically designed to seal the opening from both sides. This means that no air or gas flows from inside to outside or outside to come inside. So can also rooms within of a building against each other against air or gas flows are hedged.

Furthermore, such seals can withstand conventional sealing materials temperatures of up to about 200 ° C and thus, especially in an incipient fire, that the space on the other side of the fire against the smoke arising during firing is at least substantially secured. Should a fire develop within a building, the oxygen supply to the fire can thus be substantially minimized, as no air from the outside can reach the source of the fire.

A roller shutter according to the present invention need not necessarily have a roller shutter box with a corresponding shaft to remove the roller shutter by means of winding on the shaft of the opening, but the roller shutter can also be guided in guide rails which extend into the interior of the space to be protected and be removed by means of a pulling device from the opening. Although the invention is described in connection with shutters, it can also be used with so-called sectional doors, then the individual sectional elements are the slats of a roller shutter shell equate and it is understood that the claims set forth herein are to be interpreted accordingly, ie, include sectional doors, although not shown.

According to a development of the invention, the seals are arranged in the guide rails and seal the roller shutter slats against the guide rails. Due to the specific arrangement of the seals in the guide rails, the flows between the roller shutter blades and the guide rails can be selectively minimized and thereby reduce a possibly still existing leakage rate. In addition, the arrangement is very compact and prevents unwanted contamination in the area of the seals, as they are protected by the guide rails.

According to a further preferred embodiment, a sealing means is arranged on the lowermost roller shutter blade of the roller shutter curtain and / or on the end surface for the lowermost roller shutter blade. A sealant, which is arranged on the lowermost roller shutter blade, seals the roller shutter also down. This creates an even denser roller shutters. Such a sealant may be formed by a simple rubber or plastic lip or tube.

In a further embodiment, a further sealing means is provided, which seals the upper region of the roller shutter. A sealant which seals in the upper region of the roller shutter shell prevents or minimizes the smoke or gases in the upper region, e.g. in the area of the roller shutter box, can emerge from this or can. Such a sealant may also be formed by a rubber or plastic lip or the like, which pre-tensioned against one or more of the slats seals.

In a particularly preferred embodiment, especially the lateral seals when closing the shutter can be moved out and preferably only at the end of the closing movement in contact with the roller shutter.

The fact that the side seals can be moved out, they can be stored spaced from the roller shutter armor when lowering the shutter. Thus, the seals are subjected to no friction during the down travel of the roller shutter, the seals do not wear out and have a longer life. In addition, the drive motor does not have to work against such friction and also a closing movement of the shutter by means of gravity is possible.

According to a further embodiment, the seals when opening the shutter, preferably at the beginning of the opening movement, can be moved back. Also, this increases the life of the seals, and reduces the work to be done by the engine or manually.

Particularly preferably, a device is provided which accomplishes the closing out of the seals when closing, preferably at the end of the closing movement of the shutter. Such a device can control the removal of the seals and ensure that the seals are not used early and may be damaged.

Preferably, the device is arranged at the upper end of the roller shutter in the region of the roller shutter box. Thus, in a simple manner, the device may be e.g. be arranged in a roller shutter box in a space-saving design. This has advantages, especially during retrofitting, since apart from the roller shutter box and the guide rails no further components have to be integrated in the wall of the building.

According to a further embodiment, the device is arranged at the lower end of the roller shutter. Such a device may then be e.g. be activated as soon as the bottom roller shutter slat comes to rest on the roller shutter. In this case, it can be ensured that the seals only come into contact with the roller shutter blades after the roller shutter has fallen down, thus increasing the service life of the seal.

According to a particularly preferred embodiment, the device for each seal comprises a spring-loaded release button with associated release mechanism and / or an electronic release with associated release mechanism, by means of which the seals are moved out. Preferably, the device has for each seal at least one leaf spring, at least one sliding element and at least one support rail, wherein the at least one leaf spring, the at least one sliding element and the at least one support rail (for the seal) are arranged in a mounting rail. Thus, by means of mechanical components, a fast drive out of the seal can be effected. Mechanical components offer the advantage that they can function without an electrical power supply, which is advantageous in the case of fire, for example.

A mechanical trigger button allows triggering of the device, and thus a retraction of the seal, even without a power supply, which may no longer be available in case of fire, or due to depleted batteries can not always be guaranteed.

An electronic trigger could e.g. be connected to a smoke or Luftstrommelder, and only trigger when the smoke or Luftstrommelder delivers a corresponding signal. Here, the seals can be made even more durable.

It is particularly advantageous if the withdrawable seals are arranged in air-protection or smoke protection guide rails, which in turn are arranged in the guide rails.

Such an arrangement means that the seals can be retrofitted in certain guide rails and thus lead to a cost-effective retrofit option. Furthermore, the internal area of the guide rails can be sealed even better because the dead volume, that is the empty space in the guide rails, is minimized.

Advantageously, the withdrawable seals are formed as a one-piece seal or sealing lip in each case an air-raid or smoke protection guide rail.

A one-piece seal means that the seal over the length of a guide rail has no interruption, which could be another source of error and could possibly cause leakage.

It is particularly advantageous if the smoke protection agents have a leakage rate of less than 40 m ³ / hour, in particular less than 30 m ³ / hour and preferably less than 20 m ³ / hour.

A leak rate of less than 30 m ³ / hour or less allows the use of the roller shutter in sensitive areas, such as a hospital, to at least prevent the spread of bacteria or viruses.

Advantageously, in one embodiment, fire protection means are provided which are adapted to be activated when a temperature is exceeded and, in the case of a fire, form an additional seal between the roller shutter blades and the guide rails.

The seals of the present invention are preferably made of a plastic, rubber or silicone, all materials that begin to melt at higher temperatures. In order to minimize the spread of smoke flows in case of fire despite higher temperatures, the seals can be supplemented with a fire retardant swell in a conventional manner only at elevated temperatures of eg 130 ° C and thus ensure even at temperatures of about 500 ° C. in that air or gas flows between the roller shutter blades and the guide rails are minimized. Advantageously, a cooling device is provided which cools the roller shutter in the event of a fire. Such a cooling device can be realized, for example, by a sprinkler system, and cause the roller shutter slats in case of fire can not be excessively deformed or melt and so can be used as a fire screen.

According to a further aspect, the present invention relates to a fire protection roller shutter, which provides a roller shutter with seals, which are designed and arranged to minimize or prevent flows between the roller shutter blades and the guide rails in the closed state, preferably always.

According to a further aspect, the present invention relates to a fire protection curtain which provides a roller shutter with seals, which are designed and arranged to minimize or prevent flows between the roller shutter blades and the guide rails in the closed state, preferably always. Fire curtains and fire shutters are typically made of a metal, preferably made of a fire-resistant metal such. As stainless steel or aluminum or aluminum alloys.

Advantageously, the shutters presented here can also be designed burglar resistant, so that they can find application under this aspect of security.

Advantageous embodiments of the invention are described in the subclaims, the description and the figures.

Fig. 1

ein Gebäude mit mehreren erfindungsgemäßen Rollladen;

Fig. 2

eine detailliertere Ansicht eines erfindungsgemäßen Rollladens;

Fig. 3

einen Schnitt entlang der Linie A-A durch eine Führungsschien des Rollladens von Fig. 2;

Fig. 4

eine Seitenansicht einer Rollladenlamelle eines erfindungsgemäßen Rollladens;

Fig. 5

eine weitere Ansicht eines erfindungsgemäßen Rollladens, und

Fig. 6

eine innere Ansicht eines Rollladenkastens mit einem Teil des Rollladenpanzers und gemäß dem Pfeil eine vergrößerte Seitenansicht eines Endbereichs einer verlängerten Lamelle mit Anschlag zur Betätigung des Betätigungsknopfes.

The invention will be explained in more detail below on the basis of exemplary embodiments with reference to the drawing, in which:

Fig. 1

a building with several roller shutter according to the invention;

Fig. 2

a more detailed view of a roller shutter according to the invention;

Fig. 3

a section along the line AA through a guide rail of the shutter of Fig. 2 ;

Fig. 4

a side view of a roller shutter slat of a roller shutter according to the invention;

Fig. 5

a further view of a roller shutter according to the invention, and

Fig. 6

an inner view of a roller shutter box with a part of the roller shutter and according to the arrow an enlarged side view of an end portion of an extended slat with stop for actuating the actuating knob.

Features having the same or a similar function will be denoted by the same reference numerals below, and it goes without saying that the description given for components or component functions in connection with an embodiment also apply to other embodiments the same reference numbers are used unless otherwise stated.

The shutter 16 described here can be used to openings between walls or walls in buildings 10, z. B. at the food distribution in a canteen, or between two workshop areas, and / or on the outer wall of buildings seal.

For the sake of simplicity, is in Fig. 1 a building 10 shown, which is equipped with several shutter systems. The building 10 shown is a row house. However, it could also be a row center house or a freestanding building.

The building 10 has an entrance door 12 and a plurality of windows 13, 14, five of which can be seen in the figure. On the rear side of the building facing away from the front door 12 at least one further window and possibly a patio door is provided. In the illustrated windows 13, 14 are two ground floor windows 13 and three windows 14, which are located on the first floor and are each formed floor-deep. The ground floor windows 13 and the floor to ceiling windows 14 may each be equipped with shutters 16.

In the of Fig. 1 shown building 10, the shutter systems of the windows 14 are each 2.6 m high and depending on the window between 1.2 m and 3 m wide. The exact dimensions of the roller shutter system can be adapted to all standard windows or to custom-made.

Each of the windows 13, 14 comprises a glass pane 18 which extends across the width of the window 14 and is firmly anchored in a guide 20.

Each of the first-floor windows 14 is provided with a shutter system having a shutter 16 comprising individual shutter blades 22 (see FIG Fig. 2 ). These can be made from a number of different materials, such as wood, PVC, aluminum or stainless steel. The lowered roller shutter is located on a guide end 24 (see Fig. 2 ) on. The windows 14 are each equipped with a roller shutter 16 according to the invention.

In Fig. 2 an embodiment of a roller shutter 16 according to the invention is shown, which comprises a roller shutter box 26, a roller shutter 16 with a plurality of roller shutter slats 22, and a guide 20. Furthermore, the shutter 16 is slightly pulled down, that is, only partially, to protect people (not shown), which are behind the shutter, from blinding sun rays (also not shown). The guide 20 consists of a pair of opposing guide rails 30. In the lowered state, the bottom plate 32 rests on the guide or roller shutter 24.

The Fig. 3 shows a section along the section line A: A of in Fig. 2 shown shutter. The roller shutter 16 is supported by two piping 28 in the pair of guide rails 30 (only one of which is shown). These can be made for example of a simple flock insert or a PVC piping. The piping 28 is used to minimize the wear and tear of the roller shutter 16 and the two guide rails 30. If a piping 28 is used, the piping 28 is provided along the entire surface of the two guide rails 30.

A device (not shown here), which allows the removal of a seal 34 is in the example of Fig. 2 arranged in the region of the roller shutter box 26. The device consists of a mechanical spring-biased trigger button 68 (see Fig. 6 ) which when triggered or actuated a seal 34 ( Fig. 3 ) in the direction of the shutter blades 22, 32 by means of a leaf spring (not shown) presses. The seal 34 is disposed in a support rail 36 within the guide rail 30. The seal 34 is configured and arranged to minimize or prevent flows between the roller shutter blades and the guide rails in the closed state. It is not absolutely necessary to accommodate the seal 34 in a second rail, but it can be accommodated directly in the actual guide rail 30 together with the release mechanism.

Preferably, one of the upper roller shutter blades 22 of the roller shutter shell 16 inserted last in the guide rails 30 is configured to be longer than the other roller shutter blades 16 sliding in the guide rails 30. When this extended shutter blade comes to rest on the other shutter blades 16, at least one mechanism (see, for example, the description in connection with the Fig. 3 ) For each guide rail 30 which causes the retraction of the respective seal 34 causes.

Since the seals 34 are disposed on each side of the shutter in a respective guide rail 30, only one mechanism for one side will be described below, but in the same way in the opposite guide rail 30 can be used.

The mounting rail 36 includes the seal 34, which in this example is held by a carrier rail 38. The carrier rail 38 is held in the mounting rail 36. The mounting rail 36 has a substantially U-shaped cross section with two parallel legs 40, 42 and an upper web 44 connecting these two legs. The mounting rail 36 is formed open to the surface to be sealed. In the interior of the mounting rail 36, two opposing projections 46 are preferably present adjacent to the web 44, which together with the web 44 form a longitudinal groove 48.

The support rail 38, the support rail 36 and the guide rail 30, are preferably aluminum profile rails. The seal 34 is preferably made of silicone or other elastomeric material.

Preferably, the support rail 38 is executable and insertable together with the seal 34. This can be an expression mechanism with leaf springs deploy. This mechanism 50 is held in the longitudinal groove 48. A for the actuation (deflection) of the leaf spring or release of the seal 34 necessary operating knob 68 (see Fig. 6 ) is the seal 34 and the housing rail 32 in the raised state at one end. The device is characterized by a not visible from the outside stop 66 (see Fig. 6 ), which is connected to the lowering mechanism and only at the end of the closing movement of the roller shutter enters into engagement with the actuating knob. This can be done so that the stop 66 is formed by an angle which is height-adjustable attached to each end of the elongated blade described above. The horizontal leg of the angle forms the stop. The vertical leg of the angle can, for example, be provided with a slot through which a screw allows a height-adjustable attachment to the extended lamella. The actuating button is part of the device which is located in the area of the roller shutter box ( Fig. 2 ) or with a lever 52 of the device (see Fig. 5 ) connected.

The squeezing mechanism of each support rail 36 is used e.g. essentially by at least two spaced apart in the longitudinal direction of the support rail spaced leaf springs (not shown) and a sliding member 51 is formed. The sliding member 51 is slidably disposed in the longitudinal groove 48. Each leaf spring is connected to the sliding member 51 at one end portion, the middle portion of the leaf spring is connected to the support rail 38, and the other end portion of the leaf spring is connected to the support rail 36, for example, pivotally. Upon actuation of the operation knob, the slider 51 is displaced in the longitudinal groove 48 relative to the support rail 38 and the support rail 36, and the first movable end of each of the leaf springs is moved toward the end of the leaf spring connected to the support rail 36.

As a result, a deflection of the center of the leaf spring and thus a movement of the support rail 38 and the seal 34 from the support rail 36 out causes. As a result, the seal 34 now protrudes from the mounting rail 36 and is pressed in use of the shutter 16 against the ends of the slats 22 and against the guide members provided there (not shown). This results in a seal between the fins 22 and the support rail 36th

To protect in operation aluminum and stainless steel shutters 16 against abrasion, running and rattling noises, 30 Gleitkeder deposits must be 28 arranged in the pair of guide rails. Wooden roller shutters 16 and shutters 16 made of plastic usually require no deposits in the pair of guide rails 30th

In a particularly preferred embodiment of the invention, which is also intended for fire protection purposes, the Gleitkeder deposits, see Keder 28, made of a material that foams or swells in case of fire. The piping 28 is applied in the form of strips typically 25mm wide and extends substantially the full length of the guide rails 30. When the elongate strips foam or swell in the event of a fire, they seal interspaces between the guide rails and the roller shutter blades, thus preventing flames developing in the event of fire and / or developing smoke from passing over the guide rails 30 past the roller shutter blades 22 to the other side of the tank.

As long as the elongated strips 28 are not foamed or swollen, they have certain sliding properties or allow the roller shutter slats 22 a certain play in the guide rails 30. Thus, a smooth movement of the roller shutter slats 22 is ensured in the guide rails 30 and a possible friction as possible and unwinding of the shutter 16 ensured. A suitable material for the elongate strips 28 is known under the name PROMASIL and is manufactured and sold by Promat GmbH.

Also, an exit port (not shown) of the roller shutter box 26 for the roller shutter 16 may be provided on either side of the roller shutter 16 with elongated strips (not shown) of the material or the like described above. The elongated strips ensure in case of fire that the outlet opening is additionally sealed, so that z. B. the interior of the roller shutter box 26 and therein contained drive components, in particular electrical components, is protected from penetration of flames and / or smoke.

The Fig. 4 shows a possible shape of the roller shutter slats 22. These have at their lower and upper end substantially hook-shaped portions 54 which cooperates with the corresponding hook-shaped portion of another roller shutter slat (not shown) such that the slats 22 are interconnected. The shutter blades 22 may be connected at the ends by means of connectors (not shown). Such connectors can make the roller shutter 16 by special guide rails to a security roller shutter, so that they also provide some resistance to burglary.

The complementary shape of the roller shutter slats prevent or minimize these air or gas flows in the connecting region between the roller shutter slats.

The Fig. 5 shows a further embodiment of a roller shutter 16. At the lower end of the roller shutter guide 20 left and right two levers 52 of the device can be seen. When the shutter is extended and abutting the end 24, these levers are pushed down, thus triggering the mechanism of the support rail 36 to extend the seal 34 (not shown here).

Furthermore, the shows Fig. 5 a sealing means 56 which is arranged at the end 24, and the lowered roller shutter 16 seals from below. In the upper region of the roller shutter 16, a further sealing means 58 is shown that seals the upper region of the roller shutter 16. Furthermore, a sprinkler system 60 is shown in the upper area, which can cool the roller shutter 16 in case of fire, or can be used to combat a fire.

To form a fire screen, the roller shutter slats 22 are made of a fire retardant material, e.g. made of metal. In order to develop a fire screen to a fire protection roller shutter 16, the shutter blades 22, e.g. additionally filled with PROMASIL to prevent not only a transition to flames in case of fire, but also to ensure a certain temperature resistance of the shutter 16. It is also possible by the use of the sprinkler system 60, preferably metallic, roller shutter slats 22 to cool so that a fire curtain in combination with a sprinkler system 60 meets the legal standards of a fire shutter 16.

The Fig. 6 shows the inner design of a roller shutter box 26. In the middle of the shutter box, a shaft 62 is arranged on which the roller shutter slats are wound. In this example, the first fin 22a is fixedly connected to the shaft 62. The shaft 62 is driven by a drive (not shown) such that the individual blades 22, 22a, 22b, 22c, 22d can either be wound up or unwound from the shaft. In the in the Fig. 6 shown state, the roller shutter 16 has been completely handled. By driving the shaft, the third sipe 22c is pushed by the first and second sipe 22a, 22b in the direction of the shutter shutter shutter 64 because the fourth sipe 22d is disposed in the guide rail 30 and forms a positionally fixed hinge point for the third sipe 22c. A sealant 58 is disposed on the shutter box shutter 64 and thus forms a sealant 58 which is the upper portion of the roller shutter seals. The sealant may be in the form of a hollow tube or lip and is a silicone seal in the example shown. It could also consist of a different material, for example, the same material as the seals 34th

Geometric terms, such as Above or below are always used in relation to an embodiment shown here and their arrangement in the respective figure. It goes without saying that the embodiments can be changed in their geometric position.

From the enlarged view of Fig. 6 the stop angle 66 is shown at the end of the extended slat, the horizontal leg in the last phase of the closing movement of the roller shutter activates the operating knob 68. The stop angle is here screwed to a sliding member 70 which is attached to the end of the blade. Such sliding elements can be mounted on all slats to achieve improved sliding movement in the guide rails 30 or improved burglar resistance. A second stop angle (not shown) is provided at the second end of the elongated blade and cooperates therewith with a second actuator button (also not shown) for the seal on the other side of the roller shutter shell.

LIST OF REFERENCE NUMBERS

10

building

12

door

13

window

14

window

16

shutters

18

pane

20

guide

22

Roller shutter slat

22a

Roller shutter slat

22b

Roller shutter slat

22c

Roller shutter slat

22d

Roller shutter slat

24

Blinds completion

26

Shutter box

28

piping

30

first guide rail

32

lowest lamella

34

poetry

36

bracket rail

38

support rail

40

leg

42

leg

44

web

46

projections

48

longitudinal groove

50

mechanism

52

lever

54

areas

56

sealant

58

sealant

60

sprinkler system

62

wave

64

Shutter box shutter

66

attack

68

actuating button

70

Slide

Claims (13)

1. A roller shutter (16) having a roller shutter curtain which comprises a plurality of roller shutter slats (22; 22a-22d) which are connected to one another in an articulated manner;
   having mutually oppositely disposed guide rails (30) which guide the roller shutter curtain on the opening and closing of the roller shutter (16) and hold said roller shutter curtain in a closed state; and having a mechanism for the moving up and down of the roller shutter slats (22; 22a-22d),
   wherein seals (34) are provided which are configured and arranged for the purpose of minimizing or preventing flows between the roller shutter slats (22; 22a-22d) and the guide rails (30) in the closed state,
   characterized in that
   a device is provided that, on a closing, preferably at the end of a closing movement, of the roller shutter (24), brings about a deployment of the seals (34);
   in that the device has at least one leaf spring, at least one sliding element (51) and at least one support rail (38), which are arranged in a holding rail (36), for each seal (34);
   and
   in that the seals (34) can be deployed on the closing of the roller shutter (16) and preferably come into contact with the roller shutter curtain at the end of the closing movement.
2. A roller shutter (16) in accordance with claim 1,
   characterized in that
   the seals (34) are arranged in the guide rails (30) and seal off the roller shutter slats (22; 22d) against the guide rails (30).
3. A roller shutter (16) in accordance with claim 1 or claim 2,
   characterized in that
   a sealant (56) is arranged at the lowest roller shutter slat (22) of the roller shutter curtain and/or at the termination surface (24) for the lowest roller shutter slat (22); and/or
   in that a further sealant (58) is provided which seals off the upper region of the roller shutter curtain.
4. A roller shutter (16) in accordance with at least one of the preceding claims, characterized in that
   the seals (34) can be retracted on the opening of the roller shutter (16), preferably at the start of the opening movement.
5. A roller shutter (16) in accordance with at least one of the preceding claims, characterized in that
   the device is arranged at the upper end of the roller shutter (16) in the region of the roller shutter box (26); or
   in that the device is arranged at the lower end of the roller shutter (16).
6. A roller shutter (16) in accordance with at least one of the preceding claims, characterized in that,
   for each seal (34), the device comprises a spring-loaded trigger button (66) having an associated trigger mechanism and/or comprises an electronic trigger having an associated trigger mechanism by means of which the seals (34) can be deployed.
7. A roller shutter (16) in accordance with at least one of the preceding claims, characterized in that
   the deployable seals (34) are arranged in the air and smoke exchange protection guide rails (36) which are in turn arranged in the guide rails (30).
8. A roller shutter (16) in accordance with at least one of the preceding claims, characterized in that
   the deployable seals (34) are configured as a single-piece sealing lip in a respective air and smoke exchange protection guide rail (36).
9. A roller shutter (16) in accordance with at least one of the preceding claims, characterized in that
   the smoke exchange protection means have a leakage rate of less than 40 m³/hour, in particular of less than 30 m³/hour and preferably of less than 20 m³/hour.
10. A roller shutter (16) in accordance with at least one of the preceding claims, characterized in that
    fire protection means (28) are provided which are configured for the purpose of being activated on a temperature being exceeded and which form an additional seal between the roller shutter slats (22; 22d) and the guide rails (30) in the event of a fire.
11. A roller shutter (16) in accordance with at least one of the preceding claims, characterized in that
    a cooling apparatus (62) is provided which cools the roller shutter (16) in the event of a fire.
12. A fire protecting rolling blind comprising a roller shutter (16) in accordance with any one of the preceding claims.
13. A fire protecting rolling door (16) comprising a roller shutter (16) in accordance with any one of the preceding claims.

Images