EP4039934A1 - Noise insulation roller shutter box top side - Google Patents
Noise insulation roller shutter box top side Download PDFInfo
- Publication number
- EP4039934A1 EP4039934A1 EP22154406.7A EP22154406A EP4039934A1 EP 4039934 A1 EP4039934 A1 EP 4039934A1 EP 22154406 A EP22154406 A EP 22154406A EP 4039934 A1 EP4039934 A1 EP 4039934A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- roller shutter
- shutter box
- sound insulation
- interior
- building
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/02—Shutters, movable grilles, or other safety closing devices, e.g. against burglary
- E06B9/08—Roll-type closures
- E06B9/11—Roller shutters
- E06B9/17—Parts or details of roller shutters, e.g. suspension devices, shutter boxes, wicket doors, ventilation openings
- E06B9/17076—Sealing or antirattling arrangements
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/02—Shutters, movable grilles, or other safety closing devices, e.g. against burglary
- E06B9/08—Roll-type closures
- E06B9/11—Roller shutters
- E06B9/17—Parts or details of roller shutters, e.g. suspension devices, shutter boxes, wicket doors, ventilation openings
- E06B9/17007—Shutter boxes; Details or component parts thereof
- E06B9/17023—Shutter boxes; Details or component parts thereof made of more than two pieces
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/02—Shutters, movable grilles, or other safety closing devices, e.g. against burglary
- E06B9/08—Roll-type closures
- E06B9/11—Roller shutters
- E06B9/17—Parts or details of roller shutters, e.g. suspension devices, shutter boxes, wicket doors, ventilation openings
- E06B2009/17069—Insulation
Definitions
- the invention relates to noise insulation for roller shutter boxes.
- Roller shutters are used to shade and darken rooms in houses by moving the windows and doors on which the roller shutters are located in front of the windows and doors.
- a roller shutter box above windows and doors, there is a roller shutter on a rotary axis that can be moved parallel to the window or door. The roller shutter can be pulled up into the roller shutter box to reveal the window.
- roller shutter box Especially when the roller shutter box penetrates the brickwork completely from the outside to the inside of the building, a lot of noise and heat flow through the roller shutter box. Since the roller shutter box is usually approximately cuboid, while the rolled-up roller shutter is cylindrical, the space between the cylindrical roller shutter and the wall facing the building interior is often lined with insulating material. Of course, a residual gap must remain here in order to enable the roller shutter to rotate in the roller shutter box.
- this insulation serves to reduce the flow of heat, whereby in winter as little heat as possible should flow from the inside of the building to the outside and in summer as little heat as possible should get from the outside via the roller shutter box.
- the insulation also serves to dampen noise and should generally prevent excessive street noise from entering the building.
- a roller shutter box in which a rounded insulating material is arranged in the roller shutter box between the roller shutter and the wall facing the inside of the building.
- Cellular rubber, polyethylene, Neopor and polystyrene are suggested as insulating materials.
- WO 2018/158606 shows an insulation 30 in a vertical orientation next to the roller shutter box.
- DE 202012101962 U1 shows a roller shutter box with a head piece insulating element inside the roller shutter box.
- the head piece insulation element touches the upper one Wall element of the roller shutter box on the side facing the interior of the roller shutter box.
- the object of the invention is to further reduce the noise permeability of a roller shutter box.
- a roller shutter box In the installed position in a masonry of a building, a roller shutter box has a front side facing the environment, 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, back side and bottom up.
- the sound insulation is attached to the top on the side facing away from the interior.
- the invention provides that the soundproofing is arranged outside on the upper side of the roller shutter box.
- the soundproofing is attached to the top on the side facing the inside of the building.
- the noise that has entered the roller shutter box from outside or is caused by the movement of the roller shutter, for example, can only reach the interior of the building in a significantly reduced manner.
- a particularly positive effect is achieved when the sound insulation contains an elastic material with a relatively high density. This can absorb sound waves particularly well. Soundproofing with ethylene-propylene-diene rubber (EPDM) in particular shows good soundproofing. The soundproofing can contain other 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.
- EPDM ethylene-propylene-diene rubber
- the upper side of the roller shutter box preferably has a recess on the side facing away from the interior, which is preferably a groove, with the sound insulation being fitted in the recess.
- the sound insulation can also be attached outside of the recess on the top of the roller shutter box on the side facing away from the interior.
- the sound-insulating effect in the depression there is also further insulation over the surface of the top.
- 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 affect the action and at the same time thick enough to have an effective effect.
- FIG 1 shows a roller shutter box 1 with a roller shutter 9, shown only partially, in the installation position in a masonry 14 of a building, not shown in detail.
- the roller shutter box 1 has an interior 6 between a top 5, a back 3 and a bottom 4.
- In the top 5 of the roller shutter box 1 there is a groove 11 on the side facing away from the interior 6. This is used, for example, for an optional upper attachment.
- the roller shutter box 1 is mounted above a window 7 .
- the figure shows only the frame 8 of the window 7; the casement is not shown. To the left of window 7 is the environment U; the inside of the building I is on the right.
- the roller shutter box 1 has a front side 2 facing the environment U, a rear side 3 facing the building interior I, an underside 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.
- the interior insulation 12 is located on the side facing the interior of the building I.
- roller shutter box 1 Between the roller shutter box 1 and the inner insulation 12 there is a glued-on PVC-based inner insulation film 13, which is about 5 mm thick and elastic, so that the inner insulation 12 is held by the elastic inner insulation film 13 with pressure.
- the interior insulation 12 is concave towards the front 2, so that the rolled-up roller shutter 9 is partially surrounded without friction.
- an approximately 3.5 mm thick sound insulation 10 is mounted in a groove 11 on the side facing away from the interior 6 on the side facing the building interior I.
- the sound insulation 10 consists primarily of ethylene-propylene-diene rubber (EPDM); it is an elastic material.
- FIG 3 shows the roller shutter box 1 in more detail.
- the invention is not limited to the embodiment.
- the sound insulation according to the invention can be used without the usual sound insulation in the interior of the roller shutter box.
- the overall system is acoustically detuned by the soundproofing according to the invention, so that not only the volume of the sound that penetrates into a house from the outside is reduced.
- the natural frequency of the roller shutter box is changed and certain frequencies are particularly heavily damped.
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Building Environments (AREA)
Abstract
Ein Rollladenkasten (1) weist in der Einbauposition in einem Mauerwerk (14) eines Gebäudes eine zur Umgebung U gerichtete Vorderseite (2), eine zum Gebäudeinneren I gerichtete Rückseite (3), eine zum vom Rollladen (9) des Rollladenkasten (1) beschatteten Fenster (7) gerichtete Unterseite (4), eine vom Fenster (7) abgewandte Oberseite (5) und einen Innenraum (6) zwischen der Vorderseite (2), Oberseite (5), Rückseite (3) und Unterseite (4) auf. Eine Schalldämmung (10) ist an der Oberseite (5) auf der dem Innenraum (6) abgewandten Seite angebracht. When installed in a masonry (14) of a building, a roller shutter box (1) has a front side (2) facing the environment U, a rear side (3) facing the building interior I, and a rear side (3) facing the roller shutter (9) of the roller shutter box (1). Window (7) directed underside (4), a window (7) facing away from the top (5) and an interior space (6) between the front (2), top (5), back (3) and bottom (4). A sound insulation (10) is attached to the top (5) on the side facing away from the interior (6).
Description
Die Erfindung betrifft eine Geräuschdämmung für Rollladenkasten.The invention relates to noise insulation for roller shutter boxes.
Rollläden dienen der Beschattung und Verdunkelung von Räumen in Häusern, indem die Fenster und Türen, an denen sich die Rollläden befinden, vor die Fenster und Türen bewegt werden. In einem Rollladenkasten oberhalb von Fenstern und Türen befinden sich auf einer Drehachse jeweils ein Rollladen, der parallel zum Fenster beziehungsweise zur Tür bewegt werden kann. Der Rollladen kann nach oben in den Rollladenkasten gezogen werden, um das Fenster frei zu geben.Roller shutters are used to shade and darken rooms in houses by moving the windows and doors on which the roller shutters are located in front of the windows and doors. In a roller shutter box above windows and doors, there is a roller shutter on a rotary axis that can be moved parallel to the window or door. The roller shutter can be pulled up into the roller shutter box to reveal the window.
Insbesondere wenn der Rollladenkasten das Mauerwerk komplett von außen zum Gebäudeinneren durchdringt, gelangt viel Lärm und ein Wärmestrom durch den Rollladenkasten. Da der Rollladenkasten üblicherweise näherungsweise quaderförmig ist, während der aufgerollte Rollladen zylinderförmig ist, wird der Raum zwischen dem zylinderförmigen Rollladen und der zum Gebäudeinneren gerichteten Wand häufig mit einem Dämmstoff ausgekleidet. Hierbei muss natürlich noch ein Restspalt verbleiben, um eine Rotation des Rollladens im Rollladenkasten zu ermöglichen.Especially when the roller shutter box penetrates the brickwork completely from the outside to the inside of the building, a lot of noise and heat flow through the roller shutter box. Since the roller shutter box is usually approximately cuboid, while the rolled-up roller shutter is cylindrical, the space between the cylindrical roller shutter and the wall facing the building interior is often lined with insulating material. Of course, a residual gap must remain here in order to enable the roller shutter to rotate in the roller shutter box.
Diese Dämmung dient einerseits einer Minderung des Wärmeflusses, wobei im Winter möglichst wenig Wärme aus dem Gebäudeinneren nach außen fließen soll und im Sommer möglichst wenig Wärme von außen über den Rollladenkasten gelangen soll. Die Dämmung dient zugleich der Geräuschdämmung und soll in der Regel vermeiden, dass übermäßig Straßenlärm ins Gebäudeinnere gelangt.On the one hand, this insulation serves to reduce the flow of heat, whereby in winter as little heat as possible should flow from the inside of the building to the outside and in summer as little heat as possible should get from the outside via the roller shutter box. The insulation also serves to dampen noise and should generally prevent excessive street noise from entering the building.
Aus
Auch
Diese aus dem Stand der Technik bekannten Dämmungen reduzieren zwar die Schallübertragung durch den Rollladenkasten, was jedoch häufig nicht als ausreichend angesehen wird.Although these insulations known from the prior art reduce the transmission of sound through the roller shutter box, this is often not regarded as sufficient.
Der Erfindung liegt die Aufgabe zugrunde, die Geräuschdurchlässigkeit eines Rollladenkastens weiter zu reduzieren.The object of the invention is to further reduce the noise permeability of a roller shutter box.
Die Aufgabe wird durch einen Rollladenkasten mit den Merkmalen des unabhängigen Anspruch 1 gelöst.The object is achieved by a roller shutter box having the features of independent claim 1.
Ein Rollladenkasten weist in der Einbauposition in einem Mauerwerk eines Gebäudes über eine zur Umgebung gerichtete Vorderseite, eine zum Gebäudeinneren gerichtete Rückseite, eine zum vom Rollladen des Rollladenkasten beschatteten Fenster gerichtete Unterseite, eine vom Fenster abgewandte Oberseite und einen Innenraum zwischen der Vorderseite, Oberseite, Rückseite und Unterseite auf. Erfindungsgemäß ist die Schalldämmung an der Oberseite auf der dem Innenraum abgewandten Seite angebracht ist.In the installed position in a masonry of a building, a roller shutter box has a front side facing the environment, 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, back side and bottom up. According to the invention, the sound insulation is attached to the top on the side facing away from the interior.
Während gemäß dem Stand der Technik die Schalldämmung im Innenraum des Rollladenkastens angeordnet ist, ist erfindungsgemäß vorgesehen, dass die Schalldämmung außen auf der Oberseite des Rollladenkastens angeordnet wird.While according to the prior art the soundproofing is arranged in the interior of the roller shutter box, the invention provides that the soundproofing is arranged outside on the upper side of the roller shutter box.
So hat sich als vorteilhaft herausgestellt, wenn die Schalldämmung an der Oberseite auf der dem Gebäudeinneren zugewandten Seite angebracht ist. In diesem Fall kann der Lärm, welcher von außen in den Rollladenkasten gelangt ist oder in ihm beispielsweise durch die Bewegung des Rollladens entsteht, nur deutlich gedämmt in das Gebäudeinnere gelangen.It has been found to be advantageous if the soundproofing is attached to the top on the side facing the inside of the building. In this case, the noise that has entered the roller shutter box from outside or is caused by the movement of the roller shutter, for example, can only reach the interior of the building in a significantly reduced manner.
Vorteilhafte Ausgestaltungen werden durch die Merkmale der abhängigen Ansprüche geschützt.Advantageous configurations are protected by the features of the dependent claims.
Eine besonders positive Wirkung wird erzielt, wenn die Schalldämmung ein elastisches Material mit verhältnismäßig hoher Dichte enthält. Dieses kann besonders gut Schallwellen aufnehmen. Besonders Schalldämmungen mit Ethylen-Propylen-Dien-Kautschuke (EPDM) zeigen eine gute Schalldämmung. Die Schalldämmung kann weitere Elemente enthalten. Ist die Schalldämmung in Form einer Klebefolie verbaut, so befindet sich auf zumindest einer Seite der Folie eine Klebschicht.A particularly positive effect is achieved when the sound insulation contains an elastic material with a relatively high density. This can absorb sound waves particularly well. Soundproofing with ethylene-propylene-diene rubber (EPDM) in particular shows good soundproofing. The soundproofing can contain other 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.
Bevorzugt verfügt die Oberseite des Rollladenkastens auf der dem Innenraum abgewandten Seite über eine Vertiefung, bei der es sich vorzugsweise um eine Nut handelt, wobei die Schalldämmung in der Vertiefung angebracht ist.The upper side of the roller shutter box preferably has a recess on the side facing away from the interior, which is preferably a groove, with the sound insulation being fitted in the recess.
Es hat sich gezeigt, dass gerade derartige, übliche Nuten verstärkt zur Schallübertragung beitragen. Bei Vibrationen des Rollladenkastens durch Schallübermittlung dämpft die Schalldämmung diese Vibration in der Nut erheblich.It has been shown that conventional grooves of this type make an increased contribution to sound transmission. If the roller shutter box vibrates due to sound transmission, the sound insulation significantly dampens this vibration in the groove.
Ferner kann die Schalldämmung auch außerhalb der Vertiefung auf der Oberseite des Rollladenkastens auf der dem Innenraum abgewandten Seite angebracht sein. Neben der schalldämmenden Wirkung in der Vertiefung erfolgt dann auch eine weitere Dämmung über die Fläche der Oberseite.Furthermore, the sound insulation can also be attached outside of the recess on the top of the roller shutter box on the side facing away from the interior. In addition to the sound-insulating effect in the depression, there is also further insulation over the surface of the top.
Hierbei hat sich als vorteilhaft erweisen, wenn die Schalldämmung auf der Oberseite des Rollladenkastens in der Einbauposition bis zum Mauerwerk ragt.It has proven to be advantageous here if the sound insulation on the top of the roller shutter box in the installed position protrudes as far as the masonry.
Bevorzugt weist die Schalldämmung eine Dicke von 2 bis 10 mm, besonders bevorzugt 3 bis 4 mm auf. Die Schalldämmung ist dann dünn genug, um das Handlung nicht negativ zu beinträchtigen und gleichzeitig dick genug, um eine effektive Wirkung zu erzielen.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 affect the action and at the same time thick enough to have an effective effect.
Die Erfindung wird nun anhand der Figur erläutert. Hierbei zeigen
-
Figur 1 einen Rollladenkasten mit einer erfindungsgemäßen Schalldämmung gemäß einer ersten Ausgestaltung der Erfindung in der Einbauposition, -
den Rollladenkasten mit der erfindungsgemäßen Schalldämmung gemäß einer ersten Ausgestaltung der Erfindung,Figur 2 -
einen Rollladenkasten mit einer erfindungsgemäßen Schalldämmung gemäß einer zweiten Ausgestaltung der Erfindung in der Einbauposition sowieFigur 3 -
den Rollladenkasten mit der erfindungsgemäßen Schalldämmung gemäß einer zweiten Ausgestaltung der Erfindung.Figur 4
-
figure 1 a roller shutter box with a sound insulation according to the invention according to a first embodiment of the invention in the installed position, -
figure 2 the roller shutter box with the sound insulation according to the invention according to a first embodiment of the invention, -
figure 3 a roller shutter box with an inventive sound insulation according to a second embodiment of the invention in the installed position and -
figure 4 the roller shutter box with the sound insulation according to the invention according to a second embodiment of the invention.
Gleiche Bezugszeichen in verschiedenen Zeichnungen beziehen sich auf die jeweils selben Gegenstände.The same reference numbers in different drawings refer to the same items.
Die
Die Erfindung ist nicht auf das Ausführungsbeispiel begrenzt. So kann beispielsweise die erfindungsgemäße Schalldämmung ohne die übliche Schalldämmung im Innenraum des Rollladenkastens eingesetzt werden.The invention is not limited to the embodiment. For example, the sound insulation according to the invention can be used without the usual sound insulation in the interior of the roller shutter box.
Durch die erfindungsgemäße Schalldämmung wird das Gesamtsystem akustisch verstimmt, so dass nicht nur die Lautstärke des Schalls, welcher von außen in ein haus dringt, reduziert wird. Die Eigenfrequenz des Rollladenkastens wird verändert und bestimmte Frequenzen werden besonders stark gedämpft.The overall system is acoustically detuned by the soundproofing according to the invention, so that not only the volume of the sound that penetrates into a house from the outside is reduced. The natural frequency of the roller shutter box is changed and certain frequencies are particularly heavily damped.
- 11
- Rollladenkastenroller shutter box
- 22
- Vorderseitefront
- 33
- Rückseiteback
- 44
- Unterseitebottom
- 55
- Oberseitetop
- 66
- Innenrauminner space
- 77
- Fensterwindow
- 88th
- Blendrahmenframe
- 99
- Rollladenroller shutter
- 1010
- Schalldämmungsound insulation
- 1111
- Vertiefung, Nutindentation, groove
- 1212
- Innendämmunginterior insulation
- 1313
- Innendämmfolieinterior insulating film
- 1414
- Mauerwerkmasonry
- 1515
- Außendämmungexternal insulation
Claims (6)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102021102954.6A DE102021102954A1 (en) | 2021-02-09 | 2021-02-09 | Noise insulation roller shutter box top |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4039934A1 true EP4039934A1 (en) | 2022-08-10 |
Family
ID=80119034
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP22154406.7A Pending EP4039934A1 (en) | 2021-02-09 | 2022-02-01 | Noise insulation roller shutter box top side |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP4039934A1 (en) |
DE (1) | DE102021102954A1 (en) |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH544214A (en) | 1972-10-11 | 1973-11-15 | Hartmann & Co W | Venetian blind box |
DE3825217A1 (en) * | 1988-07-25 | 1990-02-01 | Schlotterer Albert Gmbh Co Kg | Roller-blind casing |
DE19900589A1 (en) | 1999-01-09 | 2000-07-13 | Manfred Lutz | Bearing part for thermal and acoustic improvement of existing shutter boxes displaces shaft rotation axis to give room for thermal and/or sound insulating material on room side of shutter box |
DE19905622A1 (en) | 1999-02-11 | 2000-08-17 | Gerd Heinrichs | Component for insulating external openings, e.g. doors and windows, comprises prefinished longitudinal sections which can be joined together. |
EP2003282A2 (en) * | 2007-06-05 | 2008-12-17 | Veka | Roller shutter with acoustic slats |
DE202012101962U1 (en) | 2012-05-10 | 2012-07-04 | Veka Ag | Shutter box |
DE202014100521U1 (en) | 2014-02-06 | 2014-02-27 | Hanse Haus Gmbh | Mounting box for a curtain |
DE202014100607U1 (en) | 2014-02-12 | 2014-03-13 | Konrad Wetzstein | Shutter box insulation system |
WO2018158606A1 (en) | 2017-03-03 | 2018-09-07 | Bhb Gmbh | Vertical sliding window for a building |
-
2021
- 2021-02-09 DE DE102021102954.6A patent/DE102021102954A1/en active Pending
-
2022
- 2022-02-01 EP EP22154406.7A patent/EP4039934A1/en active Pending
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH544214A (en) | 1972-10-11 | 1973-11-15 | Hartmann & Co W | Venetian blind box |
DE3825217A1 (en) * | 1988-07-25 | 1990-02-01 | Schlotterer Albert Gmbh Co Kg | Roller-blind casing |
DE19900589A1 (en) | 1999-01-09 | 2000-07-13 | Manfred Lutz | Bearing part for thermal and acoustic improvement of existing shutter boxes displaces shaft rotation axis to give room for thermal and/or sound insulating material on room side of shutter box |
DE19905622A1 (en) | 1999-02-11 | 2000-08-17 | Gerd Heinrichs | Component for insulating external openings, e.g. doors and windows, comprises prefinished longitudinal sections which can be joined together. |
EP2003282A2 (en) * | 2007-06-05 | 2008-12-17 | Veka | Roller shutter with acoustic slats |
DE202012101962U1 (en) | 2012-05-10 | 2012-07-04 | Veka Ag | Shutter box |
DE202014100521U1 (en) | 2014-02-06 | 2014-02-27 | Hanse Haus Gmbh | Mounting box for a curtain |
DE202014100607U1 (en) | 2014-02-12 | 2014-03-13 | Konrad Wetzstein | Shutter box insulation system |
WO2018158606A1 (en) | 2017-03-03 | 2018-09-07 | Bhb Gmbh | Vertical sliding window for a building |
Also Published As
Publication number | Publication date |
---|---|
DE102021102954A1 (en) | 2022-08-11 |
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