DE29900597U1 - Roller shutter device - Google Patents

Description

GRÜNECKER, KINKELDEY, $,iP.CJ<MÄlß ^: &isCHW ^: ANyÄUSSER

LAW FIRM

LAW FIRM MAXIMILIANSTRASSE 58 D-80S38 MUNICH GERMANY

Lawyers

Munich

DR. HERMANN SCHWANHÄUSSER

DR. HELMUT EICHMANN

GERHARD BARTH

DR. ULRICH BLUMENRÖDER, LLM.

CHRISTA NIKLAS-FALTER

DR. MICHAEL SCHRAMM, DIPL-PHYS.

DR. MAXIMILIAN KINKELDEY, LLM.

Of Counsel

AUGUST GRONECKER
DR. GUNTER BEZOLD
DR. WALTER LANGHOFF

DR. WILFRIED STOCKMAIR (-1996)

Patent attorneys

European Patent Attorneys

Munich

DR. HERMANN KINKELDEY

DR. KLAUS SCHUMANN

PETER H. JAKOB

WOLFHARD MEISTER

HANS HILGERS

DR. HENNING MEYER-PLATH

ANNELIE EHNOLD

'

DR. KLARA GOLDBACH

MARTIN AUFENANGER

GOTTFRIED KLITSCH

DR. HEIKE VOGELSANG-WENKE

REINHARD KNAUER ;

DIETMAR KUHL

DR. FRANZ-JOSEF ZIMMER

BETTINA K. REICHELT

DR. ANTON K. PFAU

DR. UDO WEIGELT

RAINER BERTRAM

JENS KOCH, M.S. (Uof PA) M.S. (ENSPM)

COLOGNE

DR. MARTIN DROPMANN

YOUR REF.

OUR REF.

G 4045-01374/sb DATE

15.01.1999

Applicant: 1. D&M Rolladentechnik GmbH Auf den Dorfwiesen 1-5 56204 Hillscheid

2. Pazen GmbH

Deutschherrenstr. 54492 Zeltingen-Rachtig

Roller shutter device

MAXIMILIANSTRASSE 58 D-8053$ TEL 089/21 23 50 e-mail: postmasteregrlinetltiMie

FAX (size 3) 089 / 22 02 87 or (size 4) 089 / 21 86 92 93

DEtTrJCHT?SANX &bull; »3L2 7ββ 700 1? * SWIfT:

hitp://www.grunecker.de &Ngr;&Ogr;&Idigr;17%&udigr;34&Idigr;

liAISEfc-WIlHELM-RING 13 D-50672 KÖLN TECTj221794" 97 22 0 e-mail: dropmann@grunecker.de FAX (Gr. 3) 0221/94 97 22 2

Roller shutter device

The invention relates to a roller shutter device, in particular for energy-efficient houses, with a roller shutter box which has a front wall, a rear wall, a top wall and a box base, for installation in a window or door cutout of a house wall.

Roller shutters improve the heat and sound insulation of windows and doors and also serve as burglary protection. Roller shutters can significantly improve the thermal insulation of windows and doors in the cold season and prevent rooms from overheating in the warm season by avoiding direct sunlight. Light and ventilation slots allow pleasant light to enter while simultaneously providing privacy, thus creating a comfortable feeling of security. When lowered, roller shutters can lead to an extremely inexpensive and significant improvement in sound insulation, which can be particularly important at night. Lowered roller shutters also lead to significantly increased burglary protection, as experience shows that burglars tend to avoid windows with roller shutters and, on the other hand, a wide range of burglary protection systems can be supplied for the roller shutter area on request.

A roller shutter device of the type mentioned above is known from DE 93 08 258 U.

Such a roller shutter device, for example shown in Fig.8, is preferably mounted above a window or door frame in a window or door opening in a house wall. In the course of increased requirements for thermal insulation both in new buildings and in the renovation of old buildings, it has been shown that significant heat losses can occur in the area of the window and door frames or the roller shutter boxes attached in this area. Even if thermal insulation is provided along the rear wall of the roller shutter box described within the roller shutter box itself, this is still not sufficient to provide adequate thermal insulation in the area of the window frame.

Especially with modern, highly thermally insulated facades, such as those used in so-called "passive houses" or energy-self-sufficient houses, it is necessary to achieve the best possible tightness and strictly avoid any cold bridges.

Especially in the area of windows and doors, this has led to completely new systems with newly designed window and door connections. The frame elements are almost completely integrated into the external wall insulation to improve thermal behavior.

However, if roller shutters are to be used on these highly thermally insulated facades, a roller shutter device is required that corresponds to the special conditions of the highly thermally insulated facades and minimizes heat loss.

In addition, it is desirable to integrate such roller shutter devices into the house wall when the house is being built or to adapt them to the window or door cutouts in such a way that the roller shutter box can be integrated into the house wall in an unobtrusive and physically optimized manner.

The invention is therefore based on the object of creating a roller shutter device of the type mentioned at the beginning, in particular for low-energy houses or houses in solid construction or also for prefabricated houses with highly thermally insulated facades, which have optimal installation parameters and a significantly improved thermal insulation behavior.

This object is achieved according to the invention in a roller shutter device of the type mentioned at the outset in that an insulating component is provided at least on an outer side of the rear wall of the roller shutter box, for thermal insulation between the house wall and/or a window or door frame on the one hand and the roller shutter box on the other.

The roller shutter device according to the invention with a roller shutter box designed in this way has a very compact design so that it can be used universally

and can also be retrofitted into existing window and door openings. It is equally suitable for use in solid house construction or prefabricated house construction or for retrofitting houses that are particularly energy-efficient.

Since the thermal insulation is not inside the roller shutter box but outside on its back, the thermally insulating component can be adapted exactly to the structural conditions of the door or window cutout in the house wall or the door or window frame without impairing the function of the roller device.

This allows particularly good and extremely effective thermal insulation to be achieved in the area of a house where the criteria for low-energy houses are most difficult to meet and where the greatest heat transfer occurs, while requiring minimal space.

The roller shutter device is ideally suited for highly thermally insulated facades, as any cold bridge, whether due to leakage rates or locally reduced thermal insulation, is avoided.

The roller shutter system can also be integrated into the wall structure of the highly thermally insulated facade, making it completely visually inconspicuous both inside and out.

Further advantages of the roller shutter device are the very small external dimensions of the roller shutter box, even at door height, combined with integrated maximum insulation of the entire area of application.

By using a highly stable roller shutter rod, the roller shutter device can also be used undivided (!) up to a width of approx. 2800 mm.

Preferred embodiments of the invention, as specified in the subclaims, lead to further advantages and particularly favorable thermodynamic properties due to the

- Roller shutter box rear insulation to maintain the horizontal window/door pre-insulation and the facade insulation using polyurethane moldings and integrated undercuts ("dovetail") for optimal attachment during installation

- Guide rail rear insulation to maintain vertical window/door pre-insulation

- one-piece box contour to avoid leakage rates within the rear insulation

- airtight and cold bridge-free implementation of the drive of the rolling device into the interior of the house when using a crank gear

- Possibility of electrical drive by radio remote control without cable entry into the interior of the house and thus avoiding heat transfer to the outside.

In addition to these advantages, the roller shutter device according to the invention is easy to install and service and has a plaster support connection. Due to the small external dimensions, this system can be integrated into almost any highly thermally insulated facade. Examples of this are integration into a 3-layer masonry, into a timber frame wall or into a thermally insulated composite wall.

The invention is explained in more detail below using exemplary embodiments and associated drawings. In these:

Fig. 1 shows a first embodiment of a roller shutter device according to the invention integrated in a thermal insulation composite facade, schematically in cross section;

Fig. 2 is a horizontal sectional view through a window opening with the roller shutter device according to the invention in the region of a lateral roller shutter guide element;

Fig. 3 a schematic representation of the installation situation of an embodiment

the roller shutter device with a screwable box base (left-hand front view);

Fig. 4 is a representation of the roller shutter device according to Fig. 1, illustrating the window and window frame sealing;

Fig. 5 shows a further embodiment of the roller shutter device according to the invention integrated into a facade made of a three-shell masonry;

Fig. 6 shows a further embodiment of the roller shutter device according to the invention integrated into a facade in timber frame construction;

Fig. 7 shows a further embodiment of the roller shutter device according to the invention integrated into a facade in Isorast construction;

Fig. 8 a conventional roller shutter device.

In Fig.1 and 4 a section through a house wall 20 is shown, with a window opening in which a window frame 21, which supports a window sash 25, is expertly fitted by means of sealing tape 23 and assembly foam 24, and at the upper end of which a roller shutter device 1 according to the invention is installed.

This comprises a roller shutter box 2, which in turn comprises a front wall 3, a rear wall 4, a top wall 5 and a box base 6. A rolling device 7 for a roller shutter 11 is mounted in the roller shutter box 2. Instead of a rear upper corner, a sloping wall 9 connects the top wall 5 and the rear wall 4 of the roller shutter box 2. An insulating component in the form of a rear insulation 10 is designed in such a way that its front side fits precisely against the rear wall 4 and the sloping wall 9 of the roller shutter box 2. A rear insulation projection 13 formed on the front side of the rear insulation 10 (insulating component) corresponds in terms of its volume exactly to the corner piece of the roller shutter box 2 "cut off" by the sloping wall 9. The fastening of the rear insulation 10 to the roller shutter box 2

can be done, for example, by gluing 26. Furthermore, the rear insulation 10 is designed so that its upper side represents an extension of the upper wall 5 of the roller shutter box 2. This simplifies installation in the window opening. At its lower end, the rear insulation 10 is flush with the lower edge of the rear wall 4 of the roller shutter box 2. The insulation components and elements can be made from a block of insulation material by cutting to a precise fit. A molding process is also conceivable. Polyurethane foam (PU) or expanded polystyrene (EPS, Styropur) are preferred as insulation components.

In the embodiments of the roller shutter device 1 shown in Fig. 1, 4, 5 and 7, the rear wall 4 is bent at its lower edge at right angles backwards, outwards and upwards, so that a U-shaped profile extension 19 is created, into which the lower end of the rear insulation 10 is fitted in order to ensure a secure and precise fit to the roller shutter box 2. Furthermore, the side of the rear insulation 10 facing away from the roller shutter box 2 is precisely adapted to the given contours of the window frame 21 and the house wall 20. In the area in which the window frame 21 and the house wall 20 are opposite each other, a recess is formed on the rear insulation 10, the rear insulation undercut 14, which is filled with assembly foam 24 during installation. This undercut 14 ensures a positive connection of the rear insulation 10 to and in connection with the assembly foam 24.

The cavity 22 between the house wall, window frame and roller shutter box is therefore completely filled. This minimizes any heat loss in this area.

For optimal integration of the roller shutter box 2 into the house wall 20, a plaster carrier 27 is attached to its front wall 3 by means of an adhesive 26.

The above-described design of the side of the rear insulation 10 facing the roller shutter box 2 further maximizes the insulating surface between the rear insulation 10 and the roller shutter box 2. The insulating volume of the rear insulation 10 and thus its insulating capacity are also maximized. On the one hand, a large part of the outside of the window frame 21 is covered by the rear insulation 10

(insulating component), and on the other hand, the largest possible area of the roller shutter box 2 is also covered by the rear insulation 10. A direct heat transfer from the window frame 21 or the house wall 20 via the roller shutter box 2 to the outside of the house is thus prevented.

However, easy and, above all, quick installation of the roller shutter device 1 is still guaranteed. Short installation times are particularly important for prefabricated houses, houses that are assembled from prefabricated wall and window components, and houses with highly thermally insulated facades. Since, in a roller shutter device 1 according to the invention, the rear insulation 10 can be prefabricated before the final installation in the window opening, and the dimensions and measurements of the window openings or the window frame 21 can still be taken into account precisely, the sealing effect is fully maintained despite quick installation.

To further improve the insulating effect of the roller shutter device 1 according to the invention, as shown in Fig. 2, further sealing or insulating elements 15 are provided between the guide elements 12 (guide rails), which hold the roller shutter 11 on its intended path as soon as it leaves the roller shutter box 2, and the window frame 21. These insulating elements 15 are also prefabricated in the factory and pre-glued to the guide elements 12. It is also possible to design the profile of the guide elements 12 so that, in addition to the actual guide rail, it has an open or closed hollow profile into which further sealing or insulating elements are fitted. The insulating elements 15 also reduce the heat leakage along the side surfaces of the window or door frame, which enables additional savings in heating costs. The insulating elements 15 are also adjusted to the exact required dimensions before installation and can therefore be quickly assembled. The guide elements 12 and the insulation elements 15 are mounted on the window frame 21 by means of rail fastening elements 31, for example screws, and spacer sleeves 30. The spacer sleeves 30 can be cast into the insulation elements 15 during their manufacture or can also be inserted into them later.

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The guide rail 12 is in one piece with a hollow profile rail 12a, which forms the vertical load-bearing part for the roller shutter box. The screw connection in the window frame 21 for stable fastening of the roller shutter device takes place through the hollow profile rail 12a using the spacer sleeves 30 and with the insulating body 15 made of polyurethane foam (assembly foam) in between.

Furthermore, a plaster connection rail 32 and roller shutter sealing strips 33 are located on the guide elements 12 for insulation against the lowered roller shutter 11.

For maintenance or replacement of the roller shutter 11 within the roller shutter box, the box base 6 is designed to be removable. In the embodiment shown in Fig.1, a clip component 16 is provided for this purpose, which is attached to the front wall 3 of the roller shutter box 2 by means of several rivets, similar fastening components or several welding points. The box base 6 has a corresponding clip element 18 on its front side, which is designed to snap into place with the clip component 16. This enables quick access to the components arranged in the roller shutter box 2. In addition, the unsightly arrangement of visible fastening screws on the front of the box base 6 is avoided.

In this embodiment, as well as in the installation examples according to Fig. 4 and Fig. 5 (installation in three-layer masonry), Fig. 6 (wall in timber frame construction) and Fig. 7 ("Isorasf timber construction"), a plaster edge 28 is provided at the lower front end of the front wall 3 of the roller shutter box 2. This is preferably designed by bending the front wall 3 outwards by approx. 90° and by bending the free end back at an angle. Here too, a heat insulating layer 27 is provided between the plaster and the front wall of the roller shutter box.

In the embodiment shown in Fig. 3 (front view), the box base 6 is attached to the roller shutter box 2 by means of a screw connection 17. At the front lower end of the roller shutter box 2, the head piece 3 of the same

·

·

An arm of a T-profile 34 is screwed via a spacer disk, to the second arm of which the box base 6 is screwed. The central vertical profile projection of the T-profile 34 serves as a profile plaster edge 35. This prevents plastering into the area of the box base 6 when applying an external reveal or other plastering, so that it would no longer be possible to remove it. The vertical arm of the T-profile piece 35 therefore serves as a plaster edge or as a defined reveal stop, so that the free space below the box base 6 of the roller shutter box is always maintained.

The arrangement described can be modified in many different ways. For example, as in the embodiment shown in Fig.6, in which the roller shutter device 1 is integrated into a house wall 20 in a timber frame construction, a further sealing and insulating element can be provided on the upper wall or the side walls of the roller shutter box in order to further improve the thermal insulation in the corners of the window or door cutouts of a house wall.

Of course, the use of such a roller shutter device with integrated thermal insulation is not limited to prefabricated houses or new buildings. It can also be used in the renovation of old buildings, in the construction of construction containers or in the shipping sector, where thermal insulation problems also exist.

Claims (13)

1. Roller shutter device, in particular for energy-efficient houses, with a roller shutter box which has a front wall, a rear wall, a top wall and a box base, for installation in a window or door cutout of a house wall, characterized in that an insulating component ( 10 ) is provided at least on an outer side of the rear wall ( 4 ) of the roller shutter box ( 2 ), for thermal insulation between a house wall ( 20 ) and/or a window or door frame ( 21 ) and the roller shutter box ( 2 ). 2. Roller shutter device according to claim 1, characterized in that between the rear wall ( 4 ) and the upper wall ( 5 ) of the roller shutter box ( 2 ) there is arranged an inclined wall ( 9 ) which connects these walls at an angle and on the outside of which the insulating component ( 10 ) is also provided, the insulating component ( 10 ) extending in its vertical extent from the box base ( 6 ) to the upper wall ( 5 ) of the roller shutter box ( 2 ). 3. Roller shutter device according to claim 1 or 2, characterized in that the insulating component ( 10 ) fills a given cavity ( 22 ) between the roller shutter box ( 2 ) and the house wall ( 20 ) and/or the window or door frame ( 21 ). 4. Roller shutter device according to at least one of claims 1 to 3, characterized in that the rear wall ( 4 ) has at its outer lower end a profile-like projection ( 19 ) for receiving a lower end of the insulating component ( 10 ). 5. Roller shutter device according to at least one of claims 1 to 4, characterized in that the insulating component ( 10 ) consists of a polyurethane molded body and has an integrated undercut at its rear lower end that can be filled with assembly foam. 6. Roller shutter device according to at least one of the preceding claims 1 to 5, characterized in that the roller shutter box ( 2 ) has a plaster edge ( 28 , 35 ) in the region of its front lower corner and a plaster support ( 27 ) on the front side ( 3 ). 7. Roller shutter device according to at least one of claims 1 to 6, characterized in that the roller shutter device ( 1 ) further comprises a roller shutter ( 11 ) which can be rolled up in the roller shutter box ( 2 ), and two guide elements ( 12 , 13 ) for laterally guiding the roller shutter ( 11 ) outside the roller shutter box ( 2 ). 8. Roller shutter device according to claim 7, characterized in that a sealing or insulating element ( 15 ) is arranged between the window or door frame ( 21 ) and each of the guide elements ( 12 ) of the roller shutter ( 11 ). 9. Roller shutter device according to claim 8, characterized in that the insulating component ( 10 ) is firmly connected to the rear wall ( 4 ) and/or the inclined wall ( 9 ) of the roller shutter box ( 2 ) and/or the sealing or insulating elements ( 15 ) are firmly connected to the guide element ( 12 ). 10. Roller shutter device according to at least one of claims 1 to 9, characterized in that the box base ( 6 ) is detachably arranged on the roller shutter box ( 2 ), in particular is held thereto by a screw and/or clip connection. 11. Roller shutter device according to at least one of claims 1 to 10, characterized in that the box base ( 6 ) is held at least on the front wall ( 3 ) of the roller shutter box ( 2 ) by means of a clip component ( 16 ). 12. Roller shutter device according to at least one of claims 1 to 11, characterized in that the rolling device ( 11 ) can be actuated by a drive from the inside of the house wall ( 20 ), the drive being passed through the house wall ( 20 ) in an airtight manner and without cold bridges. 13. Roller shutter device according to at least one of claims 1 to 11, characterized in that the rolling device ( 11 ) can be actuated by a remote-controlled drive, in particular by radio remote control, from the inside of the house wall ( 20 ), without cable feedthrough through the house wall ( 20 ).