DE102020127200B3 - Roller shutters for closing and / or darkening a building opening and a method for opening a building opening - Google Patents

Abstract

The invention relates to a roller shutter (1) for closing and / or darkening a building opening, at least having a roller shutter (2) with a plurality of interconnected roller shutter slats which can be rolled up and down around a shaft, a roller shutter box (3) in which the shaft is arranged, two guide rails (4) arranged on both sides of the curtain (2) for the lateral guidance of the curtain (2) when rolling up and down, and a drive unit for rolling up and down the curtain (2), wherein the curtain (2 ) can be partially pivoted at least in the completely unrolled state about a pivot axis (S) running parallel to the unrolling direction, the connection (10) being released from two adjacent roller shutter slats (11, 12). The invention also relates to a method for opening a building opening which is closed by a roller shutter (1) according to the invention.

Description

The invention relates to a roller shutter for closing and / or darkening a building opening, at least having a roller shutter with a plurality of interconnected roller shutter slats which can be rolled up and down around a shaft, a roller shutter box in which the shaft is arranged, two on both sides of the roller shutter arranged guide rails for the lateral guidance of the roller curtain when rolling up and down, a drive unit for rolling up and down the roller curtain, whereby the roller curtain can be partially pivoted at least in the fully unrolled state about a pivot axis running parallel to the unwinding direction, whereby the connection of two adjacent roller shutter slats is resolved.

The invention further relates to a method for opening a building opening which is closed by a roller shutter.

Roller shutters for closing and / or darkening building openings, for example doors, gates or windows, are generally known.

From the pamphlet DE 20 2019 003 414 U1 an emergency or quick opening system for roller shutters is also known in order to quickly clear an escape route closed by a roller shutter in an emergency. For this purpose, the side guide rails of the roller shutter are divided into two parts. In an emergency, a lower part of the guide rails can be folded away around a horizontal pivot axis, so that the lower part of the roller shutter with the guide rails can be pushed upwards manually in the manner of an accordion in order to open an escape route. A disadvantage of such a system, however, is that opening and folding up the roller shutter is force-intensive and only a very low escape route is opened.

The pamphlet DE 10 2018 202 806 A1 describes a roller shutter for a roller shutter with a plurality of roller shutter slats, which are connected to each other via connecting devices running parallel to a rolling axis of the roller shutter about a connecting axis parallel to the rolling axis, whereby at least one connecting device is two each formed on adjacent roller shutter slats and extending along the connecting axis Has connection partner whose connection is designed in such a way that the connection can be released by a separating force exerted on the lower of the two roller shutter slats transversely to the roller shutter plane. The gap created in this way between the two roller shutter slats makes it at least possible for a person in need to make himself noticeable and to ask for help. Escape through this gap is difficult.

As further prior art, reference is made to the publications KR 20 0 403 227 Y1 and AT 406 701 B referenced.

It is therefore the object of the invention to create a roller shutter for closing and / or darkening a building opening, which can be opened completely simply and quickly as an escape route. Another object of the invention is to provide a method for opening a building opening which is closed by a roller shutter.

This object is achieved by the features of the independent patent claims. Advantageous further developments of the invention are the subject of subordinate claims.

The inventors have recognized that a roll-up curtain can be divided into two parts, at least when completely unrolled, i.e. when the building opening is completely closed, by releasing a connection between two adjacent roller shutter slats, so that a lower part swivels together with the side guide rails like a door can be and thus clears the escape route from the building opening over the entire height.

The connection between two adjacent roller shutter slats can be released in the area below the roller shutter box in the unrolled state. The guide rails can be designed to be hinged, so that the lower part can be used as a passage door or an escape route.

The loosening of the connection between two adjacent roller shutter slats is possible if, for example, the connection below the roller shutter box is relieved and separated by placing the roller curtain in the completely unrolled state on end stops on a lower cross strut. It is not necessary to attach the guide rails to the building facade, but these can be designed as a kind of frame, whereby one side of the frame can be hinged. The curtain can then be pivoted with the frame like a door.

In the case of an electrically driven roller shutter, an additional switch can ensure that the power supply to the drive is interrupted in the pivoted state and operation of the roller shutter is not possible in the pivoted state.

After the frame has been swiveled back, i.e. closed again, the roller armor can rolled up again and pulled towards the roller shutter box. The released connection can automatically be closed again and the roller armor wound onto the shaft.

Accordingly, the inventors propose a roller shutter for closing and / or darkening a building opening, in particular a door or a window, at least having a roller curtain with a plurality of roller shutter slats connected to one another, which can be rolled up and down around a shaft, a roller shutter box, in on which the shaft is arranged, two guide rails arranged on both sides of the curtain for lateral guidance of the curtain when it is rolled up and down, and a drive unit for rolling the curtain up and down, with the curtain partially at least in the fully unrolled state around a pivot axis running parallel to the unwinding direction can be pivoted, the connection of two adjacent roller shutter slats being released, to the effect that a pivotable frame is provided in which the roller shutter curtain can be pivoted with the lateral guide rails.

When rolling up and down, the roll-up armor runs in the guide rails arranged on the side. According to the invention, at least in the completely unrolled state, that is to say when the building opening is completely closed, the roll-up armor can be partially pivoted about a pivot axis extending in the unrolling direction. In a simple embodiment, the roller shutter can be opened or pivoted in the completely unrolled state. In principle, however, it is also possible to open or pivot the roller shutter in an only partially unrolled state, for example when the ventilation slots between the roller shutter slats are still open or a lower gap is left open.

The roller curtain is advantageously pivoted with the guide rails and opened like a door. As a result, the roller shutter according to the invention is suitable as an escape door that can be opened quickly and easily in an emergency. The pivot axis of the roller blind runs parallel to the direction of unwinding of the roller blind or perpendicular to the shaft of the roller shutter. The pivot axis is preferably aligned parallel to the guide rails.

According to the invention, a pivotable frame is provided in which the curtain can be pivoted with the lateral guide rails. The frame advantageously comprises two lateral frame parts and an upper and a lower cross strut. The side frame parts are preferably fastened to the building facade, for example screwed. When the frame is opened and pivoted, the cross struts are advantageously pivoted with the roller curtain. A guide rail is advantageously hinge-connected to a side frame part, the pivot axis advantageously running on this side. The second guide rail is advantageously only detachably connected to the second lateral frame part and is pivoted with the roller curtain when it is pivoted, while the second frame part remains fixed to the building facade. For example, the second guide rail and the second lateral frame part can be held together by means of magnets.

The roller shutter can be driven or operated either electrically or manually. Correspondingly, the drive unit for rolling up and down the roll-up curtain is either an electric motor or a crank or a pulling strap. Advantageously, a blocking device is provided which prevents the rolling armor from rolling up and down in the pivoted state. This is to prevent an attempt to roll up or down the roller shutter in the pivoted state, which can lead to damage. In one embodiment of the roller shutter with an electric drive, the blocking device is a switch which is automatically actuated when the roller shutter is pivoted open and deactivates an electric drive of the roller shutter. It is particularly advantageous to arrange the switch in the frame. For example, the switch can be designed as a toggle switch, which is automatically actuated when the frame is opened and closed, so that the electric drive is automatically deactivated or activated by advantageously interrupting the energy supply to the electric motor.

To open the roller shutter or when pivoting the roller curtain, a connection between two adjacent roller shutter slats is released according to the invention. Advantageously, there is therefore a releasable connection between at least two adjacent roller shutter slats, which connection can be released by bringing the adjacent roller shutter slats closer to one another. The roll-up armor can therefore preferably be opened in at least one point. Preferably, at least two adjacent roller shutter slats are releasably connected to one another. The remaining roller shutter slats are advantageously connected to one another in a conventional manner and cannot be opened or separated during normal operation. The conventional connection of two roller shutter slats is designed, for example, as a piping connection and can be released by moving the shutter slats laterally against each other. On the other hand, the Connection according to the invention can only be released by a movement of the adjacent roller shutter slats directed towards one another.

When the curtain is opened and pivoted, part of the curtain, which is located below the detachable connection, is pivoted. The relative terms "below" and "above" each refer to the structural design of the roller shutter or the arrangement of the individual parts of the roller shutter. "Above" is aligned in the roll-up direction towards the shaft in the roller shutter box and "below" is aligned accordingly in the roll-off direction.

In a preferred embodiment, the releasable connection of two adjacent roller shutter slats comprises a hook on one roller shutter slat and a counter-hook on the other roller shutter slat, the hook and the counter-hook interlocking. The hook and the counter hook are advantageously each formed at the end on the longitudinal side oriented towards the respective adjacent roller shutter slat. For example, the hook is formed on the upper roller shutter rod and the counter hook is formed on the lower roller shutter rod, or vice versa. The hook and the counter-hook are preferably designed to be double-mirror images, so that they can easily engage one another. Since the hook and the counter-hook are advantageously designed in the same way except for the alignment, the term hook is used uniformly in the following, unless a distinction between hooks and counter-hooks is necessary. For example, the hooks are attached to the long sides of the roller shutter slats like a piping.

The hook connection is advantageously not detachable under tension or loading in the roll-up and roll-off direction. To release the hook connection, the adjacent roller shutter slats are moved towards each other, i.e. their distance is reduced, so that the hook connection is relieved and the hooks are released. As soon as the hooks are released from each other, the lower part of the roller armor can be pivoted. For example, the hook connection is released when the roller armor is completely unrolled and its lower end rests on the lower cross strut. The direction of movement of the hooks or the roller shutter slats for releasing the hook connection runs parallel to the rolling up and down direction of the roller curtain.

The releasable connection is advantageously in the immediate vicinity of the roller shutter box, that is to say advantageously directly below the roller shutter box. This allows the roller shutter to be opened to a maximum height and is particularly suitable as an escape route.

A simple embodiment provides that the connection can be released when the roller armor is completely unrolled. The roller armor can then be pivoted when it is completely unrolled, that is to say stands up with its lower end on the lower cross strut.

Another embodiment provides that the connection can be released in the partially unrolled state of the roller armor. As a result, the roll-up armor can also be pivoted if it is not completely but only partially unrolled. In order to relieve the releasable hook connection, so that the roller curtain can be pivoted, a clamping device is preferably provided which clamps the lower roller shutter slat so that the releasably connected roller shutter slats are brought closer to one another as they roll. The clamping device fixes the lower roller shutter slat, so that the upper roller shutter slat is moved towards the lower roller shutter slat when it rolls and the hook connection is released.

• - Abrollen des Rollpanzers und dabei Verschließen der Gebäudeöffnung, wobei der Rollpanzer in seitlichen Führungsschienen in einem schwenkbaren Rahmen verläuft, und
• - Schwenken des Rahmens mit dem darin befindlichen Rollpanzer um eine parallel zur Abrollrichtung verlaufende Schwenkachse, sodass ein unterer, abgerollter Teil des Rollpanzers verschwenkt und die Gebäudeöffnung geöffnet wird.

The invention further relates to a method for opening a building opening which is closed by a roller shutter according to the invention described above, at least comprising the following steps:

• - Unrolling the curtain wall and thereby closing the opening in the building, the curtain wall running in lateral guide rails in a pivotable frame, and
• - Pivoting of the frame with the roller curtain located therein about a pivot axis running parallel to the rolling direction, so that a lower, unrolled part of the roller curtain is pivoted and the building opening is opened.

According to the invention, the roller curtain is pivoted about a pivot axis which is aligned parallel to the rolling direction or perpendicular to the shaft of the roller shutter. Furthermore, the roller armor is pivoted either in the completely unrolled state or in the partially unrolled state. The connection between two adjacent roller shutter slats is advantageously only released by bringing these shutter slats closer to one another. The direction of this movement is advantageously along a plane that is spanned by the roller armor.

The curtain can then be swiveled. Furthermore, the connection between two adjacent roller shutter slats is advantageously closed by removing these roller shutter slats from one another. The releasable connection is preferably a connection made up of a hook and a counter-hook which engage with one another. To solve the problem, the Hooks moved towards each other, away from each other for hooking.

The invention is described in more detail below on the basis of a preferred exemplary embodiment with the aid of the figures, only the features necessary for understanding the invention being shown.

• 1: eine schematische Perspektivansicht eines Rollladens mit verschwenktem Rollpanzer,
• 2: eine weitere, schematische Perspektivansicht des Rollladens mit verschwenktem Rollpanzer gemäß der 1,
• 3: ein Ausschnitt zweier benachbarter, lösbar verbundener Rollladenstäbe in einer schematischen Perspektivansicht,
• 4a: ein Querschnitt durch die Rollladenstäbe gemäß der 3 mit bestehender Verbindung,
• 4b: ein Querschnitt durch die Rollladenstäbe gemäß der 3 mit gelöster Verbindung,
• 5a: eine vergrößerte Darstellung der bestehenden Verbindung gemäß der 4a (Detail A), und
• 5b: eine vergrößerte Darstellung der bestehenden Verbindung gemäß der 4b (Detail B).

They show in detail:

• 1 : a schematic perspective view of a roller shutter with pivoted roller curtain,
• 2 : Another, schematic perspective view of the roller shutter with pivoted roller curtain according to FIG 1 ,
• 3 : a section of two adjacent, releasably connected roller shutter slats in a schematic perspective view,
• 4a : a cross section through the roller shutter slats according to FIG 3 with an existing connection,
• 4b : a cross section through the roller shutter slats according to FIG 3 with loose connection,
• 5a : an enlarged view of the existing connection according to FIG 4a (Detail A), and
• 5b : an enlarged view of the existing connection according to FIG 4b (Detail B).

In the 1 and 2 is a roller shutter according to the invention 1 with swiveled roller armor 2 shown in different perspectives. The roller shutter according to the invention 1 is used to close and / or darken a building opening, not shown here, such as a door, a gate or a window, with the roller shutter 1 how a door can be opened, for example to reveal an escape route from the building.

The roller shutter 1 includes a roll-up armor 2 , which in the 1 and 2 is shown in the fully unrolled state, with a plurality of interconnected roller shutter slats. The roller shutter slats can by means of an electric drive, not shown here, around one in the roller shutter box 3 arranged shaft are rolled up and down. Also includes the roller shutter 1 two guide rails 4th which is on the side of the roll-up armor 2 are arranged and serve for lateral guidance when rolling up and down.

Also includes the roller shutter 1 a frame with two side frame parts 5.1 , 5.2 as well as an upper and a lower cross strut 6th . The frame parts 5.1 , 5.2 are each attached to a substrate, not shown here, for example a building facade. On the frame part shown on the left in this illustration 5.2 is one of the two guide rails 4th by means of two hinges 7th appropriate. On the right frame part 5.1 and the other guide rail 4th are not shown magnets are arranged that the guide rail 4th when the roller shutter is closed 1 on the frame part 5.1 keep.

According to the invention, the roller armor 2 at least in the fully unrolled state shown here and open with the guide rails 4th and the cross bracing 6th be pivoted. The pivot axis S. runs parallel to the roll-up and roll-up direction or perpendicular to the shaft in the roller shutter box 3 . For swiveling the roller armor 2 becomes the connection 10 two adjacent roller shutter slats 11th , 12th solved, see 4a , 4b and 5a , 5b . This releasable connection 10 or the two releasably connected roller shutter slats 11th , 12th is / are located directly below the roller shutter box 3 .

There is also a blocking device in the form of a switch 8th designed, which should prevent the electric drive of the roller shutter 1 in the pivoted state of the roller armor 2 operated to avoid damage. The desk 8th is here in the right part of the frame 5.1 arranged and is swiveled by loosening the right guide rail 4th from the right frame part 5.1 operated automatically.

In the 3 is a schematic perspective view of a section of two adjacent, releasably connected roller shutter slats 11th , 12th in the area of the detachable connection 10 shown. The roller shutter slats 11th , 12th each point to the other roller shutter slat 11th respectively 12th a hook on the edge side pointing towards the long sides 11.1 or counter hook 12.1 on. In the embodiment shown here, the hook is 11.1 on the upper roller shutter slat 11th and the counter hook 12.1 on the lower roller shutter slat 12th educated. The hook 11.1 and the counter hook 12.1 are double-mirror images, with the hook 11.1 to the rear, i.e. towards the building, is open and the counter hook 12.1 is open to the front, i.e. away from the building.

In the 4a and 4b is a cross section through the roller shutter slats 11th , 12th according to the 3 shown. the 4a shows the hook connection 10 when closed, that is, the hook 11.1 in the counter hook 12.1 intervenes and vice versa. The roller shutter is in place 1 under tension, for example when rolling up or down.

the 4b shows the hook connection 10 in the released state, that is, the hook 11.1 no longer in the opposing hook 12.1 intervenes and vice versa. The upper roller shutter slat was used for this 11th to the lower roller shutter slat 12th moved towards or vice versa, so that the distance between the roller shutter slats 11th , 12th was decreased. With the loosened connection 10 can the lower part of the roll armor 2 be pivoted.

In the 5a and 5b is the connection again 10 each shown as an enlarged detail A and B in both states. The detail A of the 5a shows the connection 10 when closed with the interlocking hooks 11.1 and 12.1 . The detail B of the 5b shows the connection 10 in the released state with separate and spaced apart hooks 11.1 and 12.1 while the shutter slats 11th , 12th are approximated to each other.

Although the invention has been illustrated and described in more detail by the preferred exemplary embodiment, the invention is not restricted by the disclosed examples and other variations can be derived therefrom by the person skilled in the art without departing from the scope of protection of the invention. In particular, the invention is not limited to the specified combinations of features, but other combinations and partial combinations that are obvious to a person skilled in the art can also be formed from the disclosed features. Thus, embodiments are also to be regarded as encompassed and disclosed by the invention, which are not explicitly shown or explained in the figures, but which emerge and can be generated from the explained embodiments by means of separate combinations of features. It is also within the scope of the invention to effect a mechanical reversal of the functions of the individual mechanical elements of the invention.

List of reference symbols

1

Roller shutter

2

Roller armor

3

Roller shutter box

4th

Guide rails

5.1, 5.2

side frame parts

6th

Cross bracing of the frame

7th

Hinges

8th

counter

10

Detachable connection

11th

upper roller shutter slat

11.1

hook

12th

lower roller shutter slat

12.1

Counter hook

S.

Swivel axis

Claims (12)

Roller shutter (1) for closing and / or darkening a building opening, in particular a door or a window, at least comprising: 1.1. a roller curtain (2) with a plurality of interconnected roller shutter slats which can be rolled up and down around a shaft, 1.2. a roller shutter box (3) in which the shaft is arranged, 1.3. two guide rails (4) arranged on both sides of the roller curtain (2) for lateral guidance of the roller curtain (2) when it is rolled up and down, 1.4. a drive unit for rolling up and down the roller shutter (2), where 1.5. the roller curtain (2) can be partially pivoted at least in the completely unrolled state about a pivot axis (S) running parallel to the unrolling direction, the connection (10) being released from two adjacent roller shutter slats (11, 12), characterized in that 1.6. a pivotable frame is provided in which the roller shutter curtain (2) can be pivoted with the lateral guide rails (4). Roller shutter (1) according to the preceding Claim 1 , characterized in that a blocking device is provided which prevents the roll-up and unrolling of the roller armor (2) in the pivoted state. Roller shutter (1) according to the preceding Claim 2 , characterized in that the blocking device is a switch (8) which is automatically actuated when the roller shutter (1) is pivoted open and deactivates an electric drive of the roller shutter (1). Roller shutter (1) according to one of the preceding Claims 1 until 3 , characterized in that there is a releasable connection (10) between at least two adjacent roller shutter slats (11, 12), which connection can be released by bringing the adjacent roller shutter slats (11, 12) closer together. Roller shutter (1) according to the preceding Claim 4 , characterized in that the releasable connection (10) of two adjacent roller shutter slats (11, 12) comprises a hook (11.1) on one shutter slat (11) and a counter-hook (12.1) on the other shutter slat (12), the hook (11.1 ) and the counter hook (12.1) interlock. Roller shutter (1) according to one of the preceding Claims 4 until 5 , characterized in that the releasable connection (10) is in the immediate vicinity of the roller shutter box (3). Roller shutter (1) according to one of the preceding Claims 4 until 6th , characterized in that the connection (10) is releasable in the completely unrolled state of the roller armor (2). Roller shutter (1) according to one of the preceding Claims 4 until 6th , characterized in that the connection (10) is releasable in the partially unrolled state of the roller armor (2). Roller shutter (1) according to the preceding Claim 8 , characterized in that a clamping device is provided which clamps the lower roller shutter slat (12) so that the releasably connected roller shutter slats (11, 12) are brought closer to one another as they roll. Method for opening a building opening which is covered by a roller shutter (1) according to one of the preceding Claims 1 until 9 is closed, at least comprising the following steps: 10.1. Unrolling the curtain wall (2) and thereby closing the building opening, the curtain wall (2) running in lateral guide rails (4) in a pivotable frame, and 10.2. Pivoting the frame with the roller curtain (2) located therein about a pivot axis (S) running parallel to the unrolling direction, so that a lower, unrolled part of the roller curtain (2) is pivoted and the building opening is opened. Procedure according to the foregoing Claim 10 , characterized in that the connection between two adjacent roller shutter slats (11, 12) is released by bringing these roller shutter slats (11, 12) closer to one another. Procedure according to the foregoing Claim 11 , characterized in that the connection between two adjacent roller shutter slats (11, 12) is closed by removing these roller shutter slats (11, 12) from one another.

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