Roller or blind box

Abstract

Roller shutter or blind box, with a box-shaped, elongated body (2) with an outer wall (3), an inner wall (4), a top (5), a bottom (6) having a slot-like outlet opening (7) and two side walls (8), as well as a cavity (11) for receiving a roller shutter (12) or a blind, which can be extended and retracted via the outlet opening (7), with a second cavity (13) formed in the body (2), separated from the first cavity (11) by a wall (14), which is penetrated by a pipe (17) accommodating a ventilation device (18), which extends through the outer wall (3) and the inner wall (4).

Description

[0001] The invention relates to a roller blind or Venetian blind box, with a box-shaped, elongated body comprising an outer wall, an inner wall, a ceiling, a bottom having a slot-like exit opening, and two side walls, as well as a cavity for receiving a roller blind or Venetian blind, which can be extended and retracted via the exit opening.

[0002] In new buildings, but also during building renovations, roller shutter or Venetian blind boxes are installed in the masonry around window and door openings. These boxes house the roller shutters or Venetian blinds, which allow for shading of the subsequently installed window or door. Such a roller shutter or Venetian blind box has an elongated body that generally extends at least the length of the window or door opening on the masonry side. It is defined by an exterior wall, an interior wall, a ceiling, a floor, and two end walls. These elements enclose an internal cavity in which the roller shutter or Venetian blind, and optionally a drive motor if electric adjustment is possible, is housed. The roller shutter or Venetian blind can be extended and retracted in a known manner through the slot-like opening in the floor. An example of a roller shutter box system with ventilation can be found in DE 202020105982.

[0003] Especially in larger buildings such as apartment buildings with separate living units, decentralized ventilation is increasingly being implemented, meaning that each unit can be ventilated separately. This requires creating an opening in the exterior wall after the building shell is complete, in order to install a ventilation system, usually consisting of a motorized fan and heat exchanger. This is a considerable undertaking. Furthermore, on a shared exterior facade with multiple such openings, it cannot be guaranteed that they are all correctly aligned. This often results in the covers covering the openings being irregularly positioned, which is visually unappealing.

[0004] The invention is based on the problem of simplifying the installation of such ventilation devices.

[0005] To solve the problem, a roller shutter or blind box is provided according to the invention, which is characterized by a second cavity formed in the body, separated from the first cavity by a wall, which is penetrated by a pipe accommodating a ventilation device and which extends through the outer wall and the inner wall.

[0006] The invention proposes a novel roller shutter or blind box which not only has a first cavity in which the roller shutter or blind is housed, but which is extended quasi-axially, i.e., along its longitudinal axis, so that a second cavity is formed in the extended area. This second cavity, which may preferably be completely enclosed, is part of the elongated body and is thus defined by the extended outer and inner walls, as well as the extended top and bottom, and is closed axially by a side wall. The second cavity is separated from the first cavity by a separate wall. This second cavity is then penetrated by a tube that extends through the outer and inner walls, and thus, in the installed position, runs quasi-horizontally through the body or the second cavity.This pipe forms the housing for the ventilation device, i.e., the motorized fan and heat exchanger, through which the room is ventilated. This means that the inventive design of the roller shutter or blind box creates a defined mounting position and a defined mounting environment with the pipe, which is automatically provided on the masonry side when the roller shutter or blind box is installed. Consequently, a defined installation location is provided, and the subsequent creation of individual openings in the masonry or building envelope is therefore unnecessary, as a defined interface for mounting the ventilation device is provided. Furthermore, the integration of this interface into the roller shutter or blind box ensures that, after these boxes are positioned precisely in the area of ​​the corresponding window or door reveal, the corresponding pipe ends are also present on the exterior facade.Pipe covers are positioned evenly and in alignment. Thanks to the integration of the pipe and the resulting creation of a defined mounting interface, the installation of the ventilation device is also very simple, as it only needs to be inserted into the pipe and secured there. The cross-sectional geometry of the pipe is preferably adapted to the cross-sectional geometry of the ventilation device for a near-positive fit. For example, if the device is cylindrical, a cylindrical pipe is used; if it is rectangular, a corresponding rectangular pipe can be used. The respective pipe is preferably made of plastic and can therefore be manufactured with the appropriate cross-sectional geometry. Maintenance of the ventilation device is just as simple as its installation, as it can be easily accessed and simply removed from the pipe.If the roller blind or venetian blind is moved automatically via a drive motor, a corresponding power supply is already provided on the masonry side, which runs to the roller blind or venetian blind box and can also supply the ventilation device, so that in this case no separate slots or power lines need to be provided for its operation.

[0007] According to a further development of the invention, the pipe protrudes from both the exterior and interior walls. This means that it extends several centimeters, for example 5 to 25 cm, beyond the respective wall surface. This allows the interior wall of the room to be plastered after the roller shutter or blind box has been installed, embedding the pipe in the plaster. The pipe is then cut to size. On the exterior, an insulating layer, for example in the form of polystyrene panels or similar materials, as part of an external thermal insulation composite system (ETICS), and a layer of plaster can be applied. The protruding pipe is embedded in this layer and subsequently cut to size, but with a short overhang remaining. This overhang on the exterior is advantageous to prevent any condensation that may form inside the pipe from running under the plaster covering the exterior wall.

[0008] Preferably, openings corresponding to the cross-sectional shape of the pipe are formed in the outer and inner walls, in which the pipe is received, preferably in a form-fitting manner. The roller shutter or blind box can therefore be manufactured individually with regard to the cross-sectional geometry of the pipe used, which in turn can be individually selected with regard to the cross-sectional geometry of the ventilation device, as described. The shape-adapted openings in the outer and inner walls result in an almost form-fitting passage for the pipe, so that it is already optimally positioned when it is inserted through the wall openings, since the wall openings define the pipe position and the pipe path through the second cavity.

[0009] It is preferred that the pipe runs with a gradient of at least 0.5°, and in particular at least 1°, between the outer and inner walls. The pipe thus slopes gently towards the outer wall, allowing any condensation that collects inside the pipe to run towards the outer wall and drip off.

[0010] As described, the pipe itself is preferably a plastic pipe, which is readily available in various diameters and cross-sectional geometries and can be easily cut to a specific length if required. Since the pipe primarily serves as a mounting interface, i.e., it only provides a mounting point for the ventilation device, a simple plastic design is suitable. If necessary, a plastic with low thermal conductivity is chosen to prevent the creation of a thermal bridge between the interior and exterior via this plastic pipe.

[0011] The pipe itself expediently has an inner diameter of at least 120 mm, particularly at least 150 mm, and preferably 160 mm when using a cylindrical pipe. The ventilation devices from various manufacturers, which are mostly also cylindrical, have diameters of at least 120 mm, usually somewhat larger. As described, the pipe diameter is preferably selected based on the individual, manufacturer-specific diameter of the ventilation device to allow for the tightest possible, form-fitting installation of the ventilation device within the pipe. The design of the body can therefore be manufacturer-specific.

[0012] According to a particularly advantageous embodiment of the invention, the second cavity is filled with an insulating material. This insulating material provides thermal insulation, meaning that this insulated box area prevents heat transfer and also prevents condensation from forming in this area. This insulating material can be any insulating material with a suitable thermal insulation effect, such as mineral wool, glass wool, or similar materials. However, an injected foam material is particularly preferred. This means that the second cavity, which is accessible via an opening at this stage, is filled with a foam material, i.e., a suitable plastic foam, after the pipe has been inserted, and the foam material then hardens. This foam material typically exhibits excellent insulating properties.Furthermore, it embeds the pipe optimally on all sides and coats both the pipe and the inner surfaces of the walls bordering the second cavity, thus ensuring a sufficiently strong bond that simultaneously fixes the pipe to the body. Construction foam, for example, can be used as such a foam material.

[0013] To insulate the remaining areas of the body, according to a further development of the invention, the outer wall and / or the inner wall and / or the ceiling and / or the floor and / or the side walls can consist of an insulating material or of a carrier material that is at least partially covered with an insulating material. These parts forming the body can therefore consist entirely of an insulating material such as polystyrene; alternatively, each part can also consist of a carrier material, for example a wooden board or a plastic board, onto which a corresponding insulating material covering, for example a polystyrene covering, is applied.

[0014] Furthermore, an access opening for one or more cables can be provided in the inner wall, floor, or ceiling. This ensures the power supply for the ventilation system, which, as described, includes a motorized fan. Preferably, the access opening is located in the inner wall, but it can also be located in the floor or ceiling of the unit. The access opening can lead directly into the second cavity, for example, if the roller blind or Venetian blind is manually operated via a pull cord, i.e., no drive motor is provided. Alternatively, the access opening can also open into the first cavity if a drive motor is provided there, with a corresponding cable connection leading to the ventilation system.

[0015] The invention further relates to a roller blind or Venetian blind device comprising a roller blind or Venetian blind box of the type described above, a roller blind or Venetian blind received in the first cavity, and a means for extending and retracting the roller blind or Venetian blind. This means can be a motor integrated in the first cavity or a pull cord guided into the first cavity through an opening in the inner wall.

[0016] Furthermore, the roller blind or Venetian blind can also include a ventilation device that is already pre-assembled in the tube, i.e., it is installed in the box before the actual installation of the roller blind or Venetian blind box in the masonry.

[0017] Further advantages and details of the present invention will become apparent from the exemplary embodiments described below and from the drawing. The drawings show: Fig. 1 a schematic, perspective view of a roller shutter or blind box according to the invention, looking towards the outer wall, Fig. 2 a schematic, perspective view of the roller shutter or blind box made of Fig. 1 Looking at the interior wall, Fig. 3 a top view, cut away, on the roller shutter or blind box according to Fig. 1 , Fig. 4 a sectional view of the roller shutter or blind box made of Fig. 1 perpendicular to its longitudinal axis, Fig. 5 a side view of the roller shutter or blind box made of Fig. 1 with a view to the inner wall, and Fig. 6 a schematic representation of an assembly example of the roller shutter or blind box according to Fig. 1 .

[0018] The Figures 1 and 2Figure 1 shows two perspective views of a roller shutter or blind box 1 according to the invention from two different directions. The roller shutter or blind box 1 has a box-shaped, elongated body 2, which consists of an outer wall 3, an inner wall 4, a top 5, a bottom 6 with a slot-shaped outlet opening 7, and two side walls 8 that axially close off the body 2. See also the figure 1. Figures 3 and 4 . Some or all of the aforementioned elements forming the body 2 consist either of an insulating material or, as in the example shown, of a carrier material 9 such as a wooden board with an insulating material 10 applied to it, for example made of polystyrene, whereby the insulating material 10 does not necessarily have to cover the entire surface of the carrier material 9, but can also be applied only in sections, which will be discussed below.

[0019] As the section view according to Fig. 3As shown, the body 2 has a first cavity 11 in which a Fig. 3 A roller blind 12, indicated only by dashed lines, or a Venetian blind is installed, which can be extended from the exit opening 7 to shade a window or door and retracted through it. In this area, the supporting materials 9 of the outer and inner walls 3, 4, as well as the ceiling 5 and the floor 6, are covered with the insulating material 10, or such insulating material 10 is provided, since the body 2 in this area, in which the large first cavity 11 is formed, is thermally insulated by this insulating material 10.

[0020] Furthermore, a second cavity 13 is formed in the body 2, which, viewed longitudinally, connects axially to the first cavity 11 and is separated from it by a wall 14. In this area, the outer and inner walls 3, 4, as well as the ceiling 5 and the floor 6, are not covered with the insulating material 10; rather, the second cavity 13 is only bounded by the supporting material 9, i.e., the wooden panels or similar. It is preferably closed on all sides by the wall, ceiling, and floor elements. Openings 15, 16 are formed in the outer wall 3 and the inner wall 4, which are preferably circular and are designed to accommodate a pipe 17 of cylindrical cross-section, which, see Fig. 3The second cavity 13 is completely penetrated by the second tube and protrudes from the openings 15, 16. The cylindrical tube 17 is preferably made of plastic and, due to its cross-sectional adaptation, can be inserted almost form-fittingly into the openings 15, 16, with the openings 15, 16 being positioned such that the tube 17 slopes slightly from the inner wall 4 to the outer wall 3. The tube 17, which is axially open at both ends, serves to accommodate a ventilation device 18, shown here only in dashed lines, through which room ventilation can be effected. This ventilation device 18 comprises, for example, a motor-driven fan with an associated heat exchanger. The cross-sectional shape and dimensioning of the tube 17 are preferably adapted to the cross-sectional shape and size of the ventilation device 18, so that the latter can also be received almost form-fittingly and easily fixed within it.A defined mounting interface for the ventilation device 18 is thus formed via the pipe 17, with this mounting interface being part of the actual body 2 used for roller shutter or blind mounting. Therefore, if the roller shutter or blind box 1 is installed on the masonry side, the corresponding mounting interface for the ventilation device 18 is automatically installed in the correct position via the pipe 17.

[0021] While the first cavity 11 is not filled, since the roller blind 12 or the venetian blind is accommodated in it as described, the second cavity 13 is filled with an insulating material 19, preferably a hardened foam material 20 such as construction foam, which insulating material 19 serves on the one hand for thermal insulation, and on the other hand, especially in the case of the hardened construction foam, also for fixing the pipe 17.

[0022] Fig. 5Figure 1 shows a side view of the roller shutter or blind box 1 looking towards the inner wall 4. The wall 14, which separates the first cavity 7 from the second cavity 13, is indicated by a dashed line. The pipe 17 projecting from the inner wall 4 is also shown. Fig. 5Figure 1 further shows an access opening 21 formed on the inner wall 4, which can be closed by a removable cap and through which a cable can be routed to supply, for example, the drive motor of the roller shutter 12 or the blind. Additionally, a cable for supplying the drive motor of the ventilation unit 18 can also be routed through this opening, or the cable supplying the drive motor of the roller shutter 12 or the blind can be branched accordingly. A corresponding opening is provided in the wall 14 through which the cable is routed from the first cavity 11 to the second cavity 13. The cable is therefore preferably routed at only one point in order to supply both drive motors, if applicable. Also shown (dashed line) is an opening 22 through which a pull cord for manually moving the roller shutter 12 or the blind in and out of the first cavity 11 can be routed.

[0023] Fig. 6 Figure 1 shows an assembly example of a roller shutter or blind box 1 according to the invention in a wall 23 on the building side. This wall comprises a masonry wall 24 in which a window or door reveal, shown in the sectioned view, is formed. The roller shutter or blind box 1 overlaps the reveal on its upper side and is therefore not visible. A window or door is mounted in this window or door reveal, which can be shaded by the roller shutter 12 or the blind. The roller shutter or blind box 1 is fixed in the masonry wall 24 in a manner known per se and is foamed in place, for example, with construction foam. A layer of plaster 25 is applied to the inner wall 4 of the body 2, forming the visible surface on the room side. An insulating layer 26, for example, polystyrene panels, is applied to the outer wall 3 of the body 2 and covered with an outer layer of plaster 27. Fig. 6As shown, the pipe 17 is cut almost flush with the plaster layer 25 on the inner wall side. A ventilation grille or similar can be attached to this side, though this is not shown in detail. On the outer wall side, the finally cut pipe 17 also protrudes through the insulation layer 26 and the outer plaster layer 27, where a cover 28 is fitted. The insulation layer 26 and the outer plaster layer 27 form a form-fitting seal around the pipe 17.

[0024] The roller shutter or blind box 1 is preferably pre-fitted with the roller shutter 12 or blind at the factory. The ventilation device 18 can also be pre-installed in the pipe 17 at the factory. If such a roller shutter or blind system is installed on the masonry side, all relevant components are already mounted; only the electrical connection of the drive motor for the roller shutter 12 or blind and the fan motor needs to be made. Alternatively, it is conceivable that the ventilation device 18 is subsequently inserted into the pipe 17 and connected after the roller shutter or blind system has been installed on the masonry side.

Claims

1. Roller blind box or venetian blind box, having a box-shaped, elongate body (2) with an outer wall (3), an inner wall (4), a cover (5), a base (6) having a slot-like outlet opening (7), and two side walls (8), and also a cavity (11) for accommodating a roller blind (12) or a venetian blind, which roller blind or venetian blind is extendable and retractable via the outlet opening (7), characterized by a second cavity (13) which is formed in the body (2), is separated from the first cavity (11) via a wall (14) and through which passes a tube (17), which accommodates a ventilation device (18) and extends through the outer wall (3) and the inner wall (4).

2. Roller blind box or venetian blind box according to Claim 1, characterized in that the tube protrudes at the outer wall (3) and the inner wall (4).

3. Roller blind box or venetian blind box according to Claim 1 or 2, characterized in that corresponding openings (15, 16) are formed in the outer wall (3) and in the inner wall (4) of the cross-sectional shape of the tube (17), in which openings the tube (17) is accommodated, preferably with a form fit.

4. Roller blind box or venetian blind box according to any one of the preceding claims, characterized in that the tube (17) runs with a gradient of at least 0.5°, in particular of at least 1° between the outer wall (3) and the inner wall (4).

5. Roller blind box or venetian blind box according to any one of the preceding claims, characterized in that the tube (17) is a plastic tube.

6. Roller blind box or venetian blind box according to any one of the preceding claims, characterized in that the tube (17) has an inner diameter of at least 120 mm, in particular of at least 150 mm and preferably of 160 mm.

7. Roller blind box or venetian blind box according to any one of the preceding claims, characterized in that the second cavity (13) is filled with an insulating material (19).

8. Roller blind box or venetian blind box according to Claim 7, characterized in that the insulating material (19) is an injected foam material (20).

9. Roller blind box or venetian blind box according to any one of the preceding claims, characterized in that the outer wall (3) and / or the inner wall (4) and / or the cover (5) and / or the base (6) and / or the side walls (8) is / are composed of an insulating material or of a carrier material (9), which is at least partially covered with an insulating material (10).

10. Roller blind box or venetian blind box according to any one of the preceding claims, characterized in that at least one access opening (21) for the supply of one or more cables is provided on the inner wall (4), in the base (6) or in the cover (5).

11. Roller blind device or venetian blind device, comprising a roller blind box or venetian blind box (1) according to any one of the preceding claims and a roller blind (12) accommodated in the first cavity (11) or a venetian blind accommodated in the first cavity (11) and a means for extending and retracting the roller blind (12) or the venetian blind.

12. Roller blind device or venetian blind device according to Claim 11, characterized in that the means is a motor integrated in the first cavity, or in that the means is a pull cord guided into the first cavity via an opening (22) in the inner wall.

13. Roller blind device or venetian blind device according to Claim 11 or 12, characterized in that a ventilation device (18) is arranged in the tube (17).

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