SOUND INSULATION ROLLER SHUTTER BOX TOP

Description

[0001] The invention relates to a sound insulation for roller shutter boxes. State of the art

[0002] Roller shutters are used to shade and darken rooms in houses by moving the shutters over the windows and doors. A roller shutter box above each window and door contains a roller shutter on a pivoting axis that can be moved parallel to the window or door. The roller shutter can be pulled up into the box to reveal the window.

[0003] Especially when the roller shutter box completely penetrates the masonry from the outside to the inside of the building, a lot of noise and heat flow passes through the roller shutter box. Since the roller shutter box is usually approximately cuboid-shaped, while the rolled-up roller shutter is cylindrical, the space between the cylindrical roller shutter and the wall facing the inside of the building is often lined with insulation. Of course, a residual gap must remain to allow the roller shutter to rotate within the roller shutter box.

[0004] This insulation serves, on the one hand, to reduce heat flow, with the goal of minimizing the amount of heat escaping from the building's interior to the outside in winter and, on the other hand, minimizing the amount of heat escaping from the outside through the roller shutter box in summer. The insulation also serves as soundproofing, generally preventing excessive street noise from entering the building.

[0005] DE 202014100607 U1 discloses a roller shutter box in which a rounded insulating material is arranged between the roller shutter and the wall facing the building's interior. Cellular rubber, polyethylene, Neopor, and polystyrene are suggested as insulation materials.

[0006] DE 19900589 A1 and DE19905622 A1 also disclose roller shutter boxes in which insulation is installed in the roller shutter box.

[0007] DE 3825217 A1 describes a roller shutter box with insulation inside on the Side facing the interior of the building.

[0008] EP 2003282 A2 shows a generic roller shutter box with thermal insulation in the box and a sound-insulating baffle in an optional ventilation shaft.

[0009] WO 2018 / 158606 shows insulation 30 in vertical orientation next to the roller shutter box.

[0010] DE 202012101962 U1 shows a roller shutter box with a head piece insulation element inside the roller shutter box. The head piece insulation element touches the upper

[0011] Wall element of the roller shutter box on the side facing the interior of the roller shutter box.

[0012] CH 544214 A discloses two angle profiles that together form a roller shutter box. These angle profiles have adjacent leg edges with grooves in which a sealing strip is inserted. The sealing strip serves to connect the two angle profiles.

[0013] DE 202014100521 U1 shows a roller shutter box which has an insulating element 27 for thermal insulation on the upper side of the side facing the outside of the building, which insulating element is arranged above the outer wall element 11.

[0014] Although these state-of-the-art insulations reduce sound transmission through the roller shutter box, this is often not considered sufficient.

[0015] The invention is based on the object of further reducing the noise permeability of a roller shutter box.

[0016] The problem is solved by a roller shutter box having the features of independent claim 1.

[0017] When installed in the masonry of a building, a roller shutter box has a front side facing the outside, a rear side facing the interior of the building, a bottom side facing the window shaded by the roller shutter of the roller shutter box, a top side facing away from the window, and an interior space between the front side, top side, rear side, and bottom side. According to the invention, the sound insulation is attached to the top side on the side facing away from the interior.

[0018] While the prior art provides for sound insulation inside the roller shutter box, the present invention provides for the sound insulation to be installed outside on the top side of the roller shutter box. It has proven advantageous to install the sound insulation on the top side, on the side facing the interior of the building. In this case, the noise that has entered the roller shutter box from outside or is generated within it, for example, by the movement of the roller shutter, can only reach the building interior in a significantly attenuated manner.

[0019] Advantageous embodiments are protected by the features of the dependent claims.

[0020] A particularly positive effect is achieved when the sound insulation contains an elastic material with a relatively high density. This material can absorb sound waves particularly well. Sound insulation made with ethylene propylene diene rubber (EPDM) is particularly effective at sound insulation. The sound insulation can contain additional elements. If the sound insulation is installed in the form of an adhesive film, there is an adhesive layer on at least one side of the film.

[0021] Preferably, the top side of the roller shutter box has a recess on the side facing away from the interior, which is preferably a groove, with the sound insulation being mounted in the recess.

[0022] It has been shown that such conventional grooves contribute significantly to sound transmission. When the roller shutter box vibrates due to sound transmission, the sound insulation in the groove significantly dampens these vibrations. Furthermore, the sound insulation can also be installed outside the recess on the top side of the roller shutter box, on the side facing away from the interior. In addition to the sound-insulating effect in the recess, further insulation is then provided across the surface of the top.

[0023] It has proven advantageous if the sound insulation on the top of the roller shutter box extends to the masonry in the installed position.

[0024] The sound insulation preferably has a thickness of 2 to 10 mm, particularly preferably 3 to 4 mm. The sound insulation is then thin enough not to negatively impact the action, yet thick enough to achieve an effective effect.

[0025] The invention will now be explained with reference to the figure. Figure 1 a roller shutter box according to the invention with sound insulation according to a first embodiment of the invention in the installed position, Figure 2 the roller shutter box according to the invention with the sound insulation according to a first embodiment of the invention, Figure 3 a roller shutter box according to the invention with sound insulation according to a second embodiment of the invention in the installation position and Figure 4 the roller shutter box according to the invention with sound insulation according to a second embodiment of the invention.

[0026] The same reference symbols in different drawings refer to the same objects.

[0027] Figure 1shows a roller shutter box 1 with a partially illustrated roller shutter 9 in the installed position in a masonry 14 of a building not shown in detail. The roller shutter box 1 has an interior space 6 between a top side 5, a back side 3, and a bottom side 4. In the top side 5 of the roller shutter box 1, on the side facing away from the interior space 6, there is a groove 11. This serves, for example, for optional upper fastening. The roller shutter box 1 is mounted above a window 7. The figure only shows the frame 8 of the window 7; the sash is not shown. To the left of the window 7 is the surrounding area U; to the right is the building interior I. The roller shutter box 1 has a front side 2 facing the surrounding area U, a back side 3 facing the building interior I, a bottom side 4 facing the window 7 shaded by the roller shutter 9 of the roller shutter box 1, and a top side 5 facing away from the window 7.On the side of the environment U, there is an external insulation 15 in front of the masonry 14 and the front side 2. Between the front side 2, the top side 5, the back side 3, and the bottom side 4 of the roller shutter box 1 there is an interior space 6 which accommodates the rolled-up roller shutter 9 and an internal insulation 12 made of Styrofoam. The internal insulation 12 is located on the side facing the building interior I. Between the roller shutter box 1 and the internal insulation 12 there is an adhesively bonded PVC-based internal insulation film 13 which is approximately 5 mm thick and elastic, so that the internal insulation 12 is held in place by the elastic internal insulation film 13 under pressure. The internal insulation 12 is concave towards the front side 2 so that the rolled-up roller shutter 9 is partially enclosed without friction. On the upper side 5 of the roller shutter box 1, an approximately 3.5 mm thick sound insulation 10 is attached in a groove 11 on the side facing away from the interior 6 and on the side facing the building interior I.The sound insulation 10 consists primarily of ethylene propylene diene rubber (EPDM), which is an elastic material. Figure 3 shows the roller shutter box 1 in more detail.

[0028] The Figures 3 and 4 , which show the second embodiment of the invention, differ from the Figures 1 and 2 , which show the first embodiment of the invention, that the sound insulation 10 is also attached outside the groove 11 on the upper side 5 of the roller shutter box 1 on the side facing away from the interior 6 and in this case projects as far as the masonry 14.

[0029] The invention is not limited to the exemplary embodiment. For example, the roller shutter box according to the invention can be used without the usual sound insulation in the interior of the roller shutter box.

[0030] The roller shutter box according to the invention acoustically detunes the entire system, thus not only reducing the volume of sound entering a house from outside, but also altering the natural frequency of the roller shutter box, and dampening certain frequencies particularly strongly. List of reference symbols

[0031] 1Roller shutter box 2Front 3Back 4Bottom 5Top 6Interior 7Window 8Frame 9Roller shutter 10Sound insulation 11Recess, groove 12Internal insulation 13Internal insulation film 14Masonry 15Exterior insulation

Claims

1. Roller shutter box (1) which has, in the installation position in masonry (14) of a building, a front side (2) directed towards the surroundings U, a rear side (3) directed towards the building interior I, a lower side (4) directed towards the window (7) shaded by the roller shutter (9) of the roller shutter box (1), an upper side (5) facing away from the window (7) and an interior space (6) between the front side (2), upper side (5), rear side (3) and lower side (4), with noise insulation (10), characterized in that the noise insulation (10) is fitted on the upper side (5) on the side facing way from the interior space (6) on the side facing the building interior I.

2. Roller shutter box (1) with noise insulation (10) according to Claim 1, characterized in that the noise insulation (10) contains an elastic material with noise-insulating properties, preferably ethylene-propylene-diene rubbers (EPDM).

3. Roller shutter box (1) with noise insulation (10) according to any one of Claims 1 or 2, characterized in that the upper side (5) of the roller shutter box (1) has a recess (11), preferably groove (11), on the side facing away from the interior space (6), and the noise insulation (10) is fitted in the recess (11).

4. Roller shutter box (1) with noise insulation (10) according to Claim 3, characterized in that the noise insulation (10) is also fitted outside the recess (11) on the upper side (5) of the roller shutter box (1) on the side facing away from the interior space (6).

5. Roller shutter box (1) with noise insulation (10) according to any one of Claims 1 to 4, characterized in that the noise insulation (10) projects on the upper side (5) of the roller shutter box (1) in the installation position up to the masonry (14).

6. Roller shutter box (1) with noise insulation (10) according to any one of Claims 1 to 5, characterized in that the noise insulation (10) has a thickness of 2 to 10 mm, preferably 3 to 4 mm.