FIELD OF THE INVENTION
[0001] The invention relates to a drywall having improved acoustic properties and to the
use of a U-channel (or runner or track) for improving the acoustic properties of a
drywall.
TECHNICAL BACKGROUND
[0002] A common building technique for the fabrication of building walls, and in particular
internal walls, is to fasten sheets or boards of walling material, such as plasterboard,
to vertical studs. Typically, each stud is secured to a horizontal beam or channel
or runner secured to either the floor or ceiling of the room or both in which the
interior drywall is being constructed.
[0003] This wall construction technique is both relatively simple and inexpensive and further
allows existing room spaces to be subdivided if required, for example when altering
the use of an existing building. This wall construction technique also allows separation
walls (typically with twin frame/double frame dwelling partition) and distribution
walls (typically single frame) to be erected. Staggered structures are also commonplace,
with single runner (or U-channel) or with twin angles.
[0004] Sound insulating has always been an issue with any interior wall.
[0005] Twin frame walls have rather good insulating properties, but require space and are
costly to build.
[0006] Rather than fasten a sheet of plasterboard to either side of the same wall stud,
it is common practice to use two rows of parallel wall studs and fasten a single sheet
of plasterboard to the outside faces of each of the paired studs. This is done to
create a relatively large air gap within the resulting wall that provides low frequency
sound insulation. To further improve such a double wall, twin angles should be preferred
over large single channels or runners.
[0007] However, this kind of "double stud" construction usually requires some form of brace
to be fastened between parallel studs spanning the air gap to give the structure adequate
strength. Furthermore, by using a double row of studs for a single wall, the cost
of materials used, and time required to install two rows of tracks, is significantly
increased over the costs that would be incurred if a single stud construction could
be used.
[0008] Single frame walls, with improved acoustic properties, would thus be of high interest.
[0009] WO-A-9623945 provides a single frame wall; comprising a metal frame comprising a plurality of
studs which are positioned in U-shaped tracks. The frame is adapted to facilitate
installation thereof, but is not adapted to have improved acoustic properties. Single
frame drywalls hence require adaptation to have improved acoustic properties. Insulating
material, such as rock wool or glass wool is inserted in the air gap between the boards.
The studs have also been modified to improve the acoustic properties.
[0010] For example,
WO-A-03/102322 provides a wall stud comprising two opposing sidewalls interconnected by a spanning
web, the spanning web comprising first and second substantially planar members connected
to the respective sidewalls and a member interconnecting the first and second planar
members, the latter member having at least one row of elongate slots formed therein
along a longitudinal axis thereof, said member interconnecting the first and second
planar members being preferably substantially semicircular.
[0011] US-A-6381916 (or
EP-A-1074671) provides a section for building walls comprising
- two parallel section legs having two longitudinal edges and extending spaced apart
from each other, each section leg having a longitudinal inwardly pointing edge flange
extending along one of said longitudinal edges;
- a common section bridge connecting said section legs along said longitudinal edges,
opposite from said edge flanges, said bridge having at least one elastic segment having
low transverse spring temper extending in a longitudinal direction of the section;
- wherein said at least one elastic segment is shaped from a plane formed by said section
bridge and provides a flexible connection between said section legs;
- wherein said recesses are slots extending in the longitudinal direction of the section.
[0012] The above solutions, like all acoustic solutions, are based on the use of a resilient
section between the two lateral sidewalls of the stud. It follows that sound insulation
in drywalls is based on resilience.
[0013] The elements of the metallic structure have received modifications at the stud only
so far.
[0014] Channels are known since decades. Very few modifications have been brought to them,
apart modifications towards "low-cost" channels. Such "low-cost" channels comprise,
like the studs, two opposing longitudinal sidewalls interconnected by a planar section
bridge or web, where said planar section bridge or web is formed, at least in part,
with expanded metal (or deployed metal). The amount of metal used is thus less than
with standard channels, allowing cost reduction.
[0015] WO-A-0155525 provides a metal stud for supporting wallboard, wherein curved slots are formed and
arranged in a specific manner in order to increase the heat and sound insulting capacity
of the stud. The slots have a maximum width of 3mm.
[0016] Yet, there is still a need for a metallic structure or frame for use in interior
walls that would improve the acoustic properties of the final drywall, and an improved
drywall.
SUMMARY OF THE INVENTION
[0017] The invention provides a drywall frame comprising a plurality of acoustic studs (7)
and at least one U-channel, said U-channel comprising two opposing longitudinal sidewalls
(2, 3) interconnected by a planar web (4), where said planar web comprises openings
(5a, 5b, 5c, 5d, 5e, 5f); characterized in that:
- said openings are
∘ slots having a width from 5mm to 100mm and a length from 80mm to 500mm; or
∘ C, U or V shaped or generally chevron-like shapes and are intertwined in each other,
having a length from 10mm to 400mm and a width from 5mm to 40mm or
∘ in the form of a grid; and
- said plurality of studs is a plurality of acoustic studs (7) comprising two opposing
longitudinal sidewalls interconnected by a section bridge having elastic properties,
said section bridge comprising a first and a second substantially planar member connected
to the respective sidewalls and a member interconnecting said first and second planar
member, said interconnecting member comprises slots arranged along the longitudinal
direction of the stud.
[0018] According to one embodiment, the openings are placed in the central part of said
planar web, or in which the openings are placed at distal parts of said planar web,
or in which the openings are placed at the edges formed by the planar web and the
sidewalls.
[0019] According to one embodiment, the openings are slots. The slots can be arranged in
rows. The slots can be arranged in one row located in the median part of the web.
The slots can be arranged in two or more rows located in the median part of the web,
at distal parts of said planar web or at the edges formed by the planar web and the
sidewalls. The slots can have the following dimensions: length from 200mm to 480mm;
separation between the slots from 20mm to 150mm, preferably from 20mm to 50mm; width
from 5mm to 100mm, preferably from 5mm to 80mm.
[0020] According to one embodiment, the openings are in the form of a grid. The grid can
extend from 10 to 80%, preferably from 30 to 60%, of the width of the planar web.
[0021] According to one embodiment, the openings are C, U or V shaped or generally chevron-like
shapes and are intertwined in each other. The openings can have the following dimensions:
length of the chevron-like form from 50mm to 300mm; width of the chevron-like form
from 5 mm to 30mm; width of the see-through part of the openings from 0.5mm to 30mm,
preferably from 1 mm to 20mm.
[0022] According to one embodiment, the openings have all the same shape.
[0023] According to one embodiment, the openings are obtained by laser techniques, mechanical
techniques with or without metal removal including punching, piercing, stamping, expanding
and deploying.
[0024] The drywall frame can be a single frame.
[0025] The invention also provides a drywall comprising the drywall frame of the invention
together with a plurality of boards, preferably plasterboards, affixed onto said studs
on each side thereof and preferably onto said U-channels.
[0026] According to one embodiment, the drywall further comprises a filler material placed
between the boards.
[0027] The invention also provides the use of a combination comprising a plurality of acoustic
studs (7) and a U-channel according to the invention for providing a metallic structure
improving the acoustic properties of drywalls.
[0028] According to one embodiment, the drywall is a single frame, a staggered frame or
a double frame.
[0029] The present invention allows improving the sound absorbing properties of a drywall.
[0030] Since the channels are affixed in the floor or ceiling of the room, it was believed,
until the invention, that they will not serve in the sound transmission through the
drywall. In an unexpected manner, the inventors have found that the U-channel does
participate to the acoustic properties, and in an even more surprising manner that
the technical solutions known for studs cannot be applied to the U-channels. Indeed,
studs with merely openings or slots in the central planar web do not exhibit any improvement
in the acoustic properties while the very same type of openings or slots does provide
an improvement when applied to U-channels. The invention is based, at least partly,
on this surprising finding.
BRIEF DESCRIPTION OF THE DRAWINGS
[0031]
Figure 1 represents a perspective view of a first embodiment of the invention.
Figure 2 represents a perspective view of a second embodiment of the invention.
Figure 3 represents a top view from different embodiments of the invention.
Figure 4 represents a top view from different embodiments of the invention.
Figure 5 represents a single frame of the invention with plasterboards being mounted on it.
DETAILED DESCRIPTION OF EMBODIMENTS OF THE INVENTION
[0032] The invention is now disclosed in more details in the following description.
[0033] The metallic frame of the invention comprises at least one U-channel, and a plurality
of studs, said studs being introduced into said channels, where the channels longitudinal
sidewalls will maintain said studs in place. This is conventional in the art and the
methods for erecting drywalls are not changed with the invention.
[0034] The invention is based on the use of a specific U-channel (or runner or track), used
in combination with acoustic studs, so as to provide a metallic structure where all
elements are designed to improve the acoustic properties of the final drywall.
[0035] As is depicted in figure 1, the U-channel (1) of the invention comprises two opposing
longitudinal sidewalls (2, 3) interconnected by a planar web (4), where said planar
web comprises openings (5a, 5b, etc).The sidewalls (2, 3) are substantially parallel
to one another and/or substantially equal in width. In use the studs are forced into
the U-channels, and can then be screwed if necessary. Preferred dimensions for the
U-channel are the following: 48, 50, 62, 70, 75, 90, 100, 146, 150 and 200. The planar
web 4 may be from 36mm to 200mm, preferably from 48mm to 150mm, in width. The width
of the sidewalls (2, 3) may be from 25mm to 50mm, preferably from 25mm to 35mm. The
thickness of the metal foil used to manufacture the U-channel is adapted, and is generally
0.5 or 0.6mm, but other thicknesses can be used if needed. The metal is standard and
does not need any adaptation.
[0036] The openings can be placed in the central portion of the planar web, as is represented
in figure 1.
[0037] They may also be placed at a location of the web close to the lateral sidewalls,
or even at the angles formed by the web and the sidewalls. This latter embodiment
is depicted in figure 2.
[0038] The openings may be located at more than one location in the web.
[0039] The openings can have various shapes. One preferred shape is a slot, with an elongated
shape. The openings generally comprise a plurality of slots, arranged in a row or
a plurality of rows, typically 2 or 3 adjacent rows. In the event more than one row
of slots is present, the slots can be placed in correspondence, or be offset one with
respect to the other. The offset may be symmetrical or not.
[0040] Figure 3a represents the embodiment shown in figure 1, viewed from the above, for
the web part 4 only. Figure 3b is a variant, with slots of substantially greater surface.
Figure 3c represents an embodiment where the slots (5a, 5b, 5c, 5d, 5e) are arranged
in two adjacent rows (6a, 6b), the slots being offset. In the embodiment shown in
Figure 3c first and second rows of slots are provided, with the second row of slots
being displaced along the length of the planar web 4 by approximately half the length
of a slot with respect to the first row of slots. The two rows of slots are equally
spaced apart the median line of the planar web 4. Figure 3d represents an embodiment
where the slots (5a, 5b, 5c, 5d, 5e, 5f) are arranged in two adjacent rows (6a, 6b),
the slots being aligned from one row to another.
[0041] The length of the slots is from 80mm to 500mm, preferably from 200mm to 480mm. The
separation between the slots along the direction of one given row may be from 20mm
to 150mm, preferably from 20mm to 50mm. (The length to separation ratio of the slots
can be approximately 4:1 to 25:1, preferably 5:1 to 15:1). The width of the slots
is from 5mm to 100mm, preferably from 5mm to 80mm. When two or more rows are contemplated,
the distance between their respective adjacent axis is calculated so as to have enough
material to maintain mechanical strength. Typically this distance between adjacent
axis is such that the distance between two slots from two different parallel adjacent
rows may be from 10mm to 150mm, preferably from 10mm to 80mm.
[0042] A row of diagonal slots can also be used, preferably in the median part of the planar
web. The slots then would extend across part or whole of the width of the planar web.
[0043] As represented in figure 4a, 4b, 4c and 4e, the openings may also have other designs
such as C or U or V shapes, generally speaking chevron-like shapes, where the C or
U or V openings or chevrons-like are intertwined in each other, the respective apex
are opposite one to the other. More than one of such chevron-like openings may be
present in a row, as is represented in figure 4d. Alternatively the rows can be repeated
at different locations on the web of the U-channel. With this geometry, the sound
track is longer than for a direct connection. Sound attenuation is thus improved with
this geometry.
[0044] The length of the C/U/V (chevron-like) openings is from 10mm to 400mm, preferably
from 50mm to 300mm. The width of the C/U/V (chevron-like) form is from 5mm to 40mm,
preferably from 5 mm to 30mm. The width of the openings (i.e. the part that is see-through)
may be from 0.5mm to 30mm, preferably from 1mm to 20mm. Two or more chevron-like openings
may be used for the repetition of the pattern. Otherwise the dimensions provided above
would equally apply. For example, the distance between adjacent axis of rows of intertwined
chevron-like openings is such that the distance between two slots from two different
parallel adjacent rows may be from 10mm to 150mm, preferably from 10mm to 80mm.
[0045] The openings can also be in the form of a grid, notably obtained by metal expansion
or deployment. The grid may extend over a part of the planar web, or over substantially
the entire width of the web. The grid may thus extend from 10 to 80%, preferably from
30 to 60% of the width of the planar web.
[0046] Holes, e.g. formed by mechanical processes, are also possible. The metal that may
remain after formation of the openings will preferably remain in the inner volume
of the U-channel; a flat and smooth surface may thus remain available on the outer
of the U-channel.
[0047] Openings are preferably all of the same shape, with the same length and width.
[0048] Different techniques can be used to form the openings. Laser cutting is one technique,
which can be used on-line. Other techniques using mechanical tools can be used, as
is known in the art. Punching, piercing, stamping and any other known methods can
be used. Metal expansion or deployment is also a possible method. Existing U-channels
or tracks formed using the latter technique are already known.
[0049] Openings can be formed with or without metal removal. In the event of a mechanical
technique without metal removal, the metal that is taken out of the piece to form
the openings remain preferably on one side of the metal sheet. Openings, e.g. slots
can be stamped through and have slot edges set upright toward one side. Said upright
slot edges preferably protrude into an interior portion of said upright section.
[0050] Possible U-channels that can be used in the invention are the MAXI-TEC® products
or those manufactured by Dallan (expanded metal, optionally folded).
[0051] The web of the U-channel could be totally flat or with large groove. Both embodiments
are known in the field of channels. When simply placed on the wall, the planar web
will show a gap, with the substrate, of about 0.5 to 2mm, for example. This may be
useful during manufacture of the channel. The embodiment with large groove can also
be useful during use, since the sidewalls will, as a consequence of the planar web
being forced towards the floor or ceiling, bend towards the interior of the channel
and provide improved grasping of the studs.
[0052] The acoustic studs used in the invention for manufacture of the frame are those studs
which are known to improve the acoustic properties of a drywall. A stud will be defined
as acoustic if, when used in a standard drywall instead of a standard stud with the
same metal thickness, provides a gain of at least 2dB for the sound transmission across
the wall. Examples of acoustic studs are those subject of
WO-A-03/102322 and
EP-A-1074671. Sound performances are measured using the standards defined in the examples section.
[0053] Acoustic studs comprise two opposing longitudinal sidewalls interconnected by a section
bridge, said bridge having elastic properties. The section bridge comprises first
and second substantially planar members connected to the respective sidewalls and
a member interconnecting the first and second planar members, the latter member providing
the resilience. Resilience is improved in studs by the use of perforations, typically
slots arranged along the longitudinal direction of the stud.
[0054] While the invention can be used for double-frame walls or staggered walls, it is
preferably to use the invention for single-frame walls.
[0055] The metallic frame is used with standard wallboards such as plasterboards. The walls
are erected according to the known standards.
[0056] Figure 4 represents a single frame erected, with plasterboards being mounted on it.
The U-channels (also known as runners or tracks or beams ) are secured (typically
with screws or glue) to the floor and ceiling of the room. Acoustical studs 7 are
inserted into the U-channels. Plasterboards 8 are then fixed onto the studs in a standard
manner (e.g. with screws). Plasterboards are also preferably fixed onto the U-channels
in a standard manner (e.g. with screws).
[0057] An insulating material, such as mineral wool, rock wool, glass wool, spun bonded
polyester wool foamed plastics, foamed polymers, or any filler material known to improve
acoustic properties, can be used to fill in the gap inside the drywall. This is conventional
in the art.
[0058] The invention further relates to the use of a plurality of acoustic studs (7) in
combination with the U-channel for providing a metallic structure for improving the
acoustic properties of the drywalls. This improvement is reached in single-frame drywalls,
but also in staggered frame or even in double-frame drywalls. The present invention
allows replacing the corners/angles typically used and yet obtain improved acoustic
properties.
[0059] The U-channels of the invention also provide ease of handling, notably compared to
corners/angles, especially on the site of use. They are also easier to align, compared
again to angles/corners. U-channels of the invention are otherwise handled in a way
similar to standard U-channels. Acoustic improvements are not obtained to the detriment
of the handling or the mechanical strength (once installed).
[0060] The following examples illustrate the invention without limiting it.
[0061] The sound performances are measured according to standards, BS En ISO 140-3 Acoustic
-Measurement of sound insulation in buildings and of building elements- Part 3 Laboratory
measurement of airborne sound insulation of building elements and BS EN ISO 717_1
Rating of sound insulation in buildings and of building elements- Part 1 Airborne
sound insulation.
EXAMPLES
[0062] The acoustic performances Rw+C are measured for a double-frame drywall with standard
62 studs. Width of the channel and the studs are 62 mm. Are tested angles/corners,
standard U-channels ("std channel"), a U-channel according to the embodiment of figure
3b ("U-channel 1") and a U-channel according to the embodiment of figure 4e and ("U-channel
2"). U-channel 1 comprises slots of a length of 230mm, a width of 45mm and separations
between two slots of 50mm. U-channels 2 comprises chevron-like openings, with a length
for the central part of 200mm, flanked with inclined parts, these parts forming an
angle of 45° with the axis of the slot and being 20mm long each (thus forming a width
of about 14.14mm). Two parallel chevron-like openings are offset one with respect
to the other by 20mm. The see-through is about 1 mm.
[0063] The results are given in the table below.
Type |
Angles |
Std Channel |
U-channel 1 |
U-channel 2 |
Rw+C (dB) |
53 |
49 |
52 |
52 |
1. Drywall frame comprising a plurality of studs (7); and at least one U-channel (1),
said U-channel comprising two opposing longitudinal sidewalls (2, 3) interconnected
by a planar web (4), where said planar web comprises openings (5a, 5b, 5c, 5d, 5e,
5f);
characterized in that:
- said openings are
∘ slots having a width from 5mm to 100mm and a length from 80mm to 500mm or
∘ C, U or V shaped or generally chevron-like shapes and are intertwined in each other,
having a length from 10mm to 400mm and a width from 5mm to 40mm or
∘ in the form of a grid; and
- said plurality of studs (7) is a plurality of acoustic studs comprising two opposing
longitudinal sidewalls interconnected by a section bridge having elastic properties,
said section bridge comprising a first and a second substantially planar member connected
to the respective sidewalls and a member interconnecting said first and second planar
member, said interconnecting member comprises slots arranged along the longitudinal
direction of the stud.
2. Drywall frame of claim 1, in which the openings (5a, 5b, 5c, 5d, 5e, 5f) are placed
in the central part of said planar web (4), or in which the openings are placed at
distal parts of said planar web (4), or in which the openings are placed at the edges
formed by the planar web (4) and the sidewalls (2, 3).
3. Drywall frame of claim 1 or 2, in which the openings (5a, 5b, 5c, 5d, 5e, 5f) are
slots.
4. Drywall frame of claim 3, in which the slots are arranged in rows.
5. Drywall frame of claim 3, in which the slots are arranged in one row located in the
median part of the web.
6. Drywall frame of claim 4, in which the slots are arranged in two or more rows located
in the median part of the web, at distal parts of said planar web or at the edges
formed by the planar web and the sidewalls.
7. Drywall frame of any one of claims 3 to 6, in which the slots have a length from 200mm
to 480mm, and a separation between the slots from 20mm to 150mm, preferably from 20mm
to 50mm.
8. Drywall frame of claim 1 or 2, in which the openings are in the form of a grid.
9. Drywall frame of claim 8, in which the grid extends from 10 to 80%, preferably from
30 to 60%, of the width of the planar web.
10. Drywall frame of any one of claims 1 to 9, in which the openings have all the same
shape.
11. Drywall frame of any one of claims 1 to 10, in which the openings are obtained by
laser techniques, mechanical techniques with or without metal removal including punching,
piercing, stamping, expanding and deploying.
12. Drywall frame of any one of claims 1 to 11, which is a single frame.
13. Drywall comprising the drywall frame of anyone of claims 1 to 12 together with a plurality
of boards (8), preferably plasterboards, affixed onto said studs (7) on each side
thereof and preferably onto said U-channels.
14. Drywall of claim 13, further comprising a filler material placed between the boards.
15. Use of a plurality of acoustic studs (7) in combination with a U-channel for providing
a metallic structure for improving the acoustic properties of drywalls, said U-channel
comprising two opposing longitudinal sidewalls (2, 3) interconnected by a planar web
(4), where said planar web comprises openings (5a, 5b, 5c, 5d, 5e, 5f), said openings
being
∘ slots having a width from 5mm to 100mm and a length from 80mm to 500mm; or
∘ C, U or V shaped or generally chevron-like shapes and are intertwined in each other,
having a length from 10mm to 400mm and a width from 5mm to 40mm; or
∘ in the form of a grid;
wherein said plurality of acoustic studs (7) comprise two opposing longitudinal sidewalls
interconnected by a section bridge having elastic properties, said section bridge
comprising a first and a second substantially planar member connected to the respective
sidewalls and a member interconnecting said first and second planar member, said interconnecting
member comprises slots arranged along the longitudinal direction of the stud.
16. Use according to claim 15, wherein the drywall is a single frame, a staggered frame
or a double frame.
1. Trockenwandrahmen, der mehrere Stützen (7) und mindestens ein U-Profil (1) umfasst,
wobei das U-Profil zwei einander gegenüberliegende Längsseitenwände (2, 3) umfasst,
die durch einen planaren Steg (4) miteinander verbunden sind, wobei der planare Steg
Öffnungen (5a, 5b, 5c, 5d, 5e, 5f) umfasst;
dadurch gekennzeichnet, dass:
- die Öffnungen
- Schlitze mit einer Breite von 5 mm bis 100 mm und einer Länge von 80 mm bis 500
mm sind oder
- C-, U- oder V-förmige oder allgemein zickzackartige Formen sind und ineinandergreifen,
mit einer Länge von 10 mm bis 400 mm und einer Breite von 5 mm bis 40 mm oder
- in Form eines Gitters vorliegen; und
- die mehreren Stützen (7) mehrere Schallstützen sind, die zwei einander gegenüberliegende
Längsseitenwände umfassen, die durch eine Profilbrücke mit elastischen Eigenschaften
miteinander verbunden sind, wobei die Profilbrücke ein erstes und ein zweites im Wesentlichen
planares Glied, die mit den jeweiligen Seitenwänden verbunden sind, und ein Glied,
das das erste und das zweite planare Glied miteinander verbindet, umfasst, wobei das
Verbindungsglied entlang der Längsrichtung der Stütze angeordnete Schlitze umfasst.
2. Trockenwandrahmen nach Anspruch 1, wobei die Öffnungen (5a, 5b, 5c, 5d, 5e, 5f) im
zentralen Teil des planaren Stegs (4) platziert sind oder wobei die Öffnungen an distalen
Teilen des planaren Stegs (4) platziert sind oder wobei die Öffnungen an den durch
den planaren Steg (4) und die Seitenwände (2, 3) gebildeten Rändern platziert sind.
3. Trockenwandrahmen nach Anspruch 1 oder 2, wobei die Öffnungen (5a, 5b, 5c, 5d, 5e,
5f) Schlitze sind.
4. Trockenwandrahmen nach Anspruch 3, wobei die Schlitze in Reihen angeordnet sind.
5. Trockenwandrahmen nach Anspruch 3, wobei die Schlitze in einer Reihe angeordnet sind,
die in einem Mittelteil des Stegs positioniert ist.
6. Trockenwandrahmen nach Anspruch 4, wobei die Schlitze in zwei oder mehr Reihen angeordnet
sind, die im Mittelteil des Stegs, an distalen Teilen des planaren Stegs oder an den
durch den planaren Steg und die Seitenwände gebildeten Rändern positioniert sind.
7. Trockenwandrahmen nach einem der Ansprüche 3 bis 6, wobei die Schlitze eine Länge
von 200 mm bis 480 mm und einen Abstand zwischen den Schlitzen von 20 mm bis 150 mm,
vorzugsweise von 20 mm bis 50 mm, aufweisen.
8. Trockenwandrahmen nach Anspruch 1 oder 2, wobei die Öffnungen in Form eines Gitters
vorliegen.
9. Trockenwandrahmen nach Anspruch 8, wobei sich das Gitter von 10 bis 80%, vorzugsweise
von 30 bis 60%, der Breite des planaren Stegs erstreckt.
10. Trockenwandrahmen nach einem der Ansprüche 1 bis 9, wobei die Öffnungen alle die gleiche
Form aufweisen.
11. Trockenwandrahmen nach einem der Ansprüche 1 bis 10, wobei die Öffnungen durch Lasertechniken,
mechanische Techniken mit oder ohne Metallabtrag, einschließlich Durchstoßen, Lochen,
Stanzen, Expandieren und Strecken erhalten werden.
12. Trockenwandrahmen nach einem der Ansprüche 1 bis 11, bei dem es sich um einen einzigen
Rahmen handelt.
13. Trockenwand, die den Trockenwandrahmen nach einem der Ansprüche 1 bis 12 zusammen
mit mehreren Platten (8), vorzugsweise Gipskartonplatten, die an den Stützen (7) auf
jeder Seite davon und vorzugsweise an den U-Profilen befestigt sind, umfasst.
14. Trockenwand nach Anspruch 13, die ferner einen zwischen den Platten platzierten Füllstoff
umfasst.
15. Verwendung mehrerer Schallstützen (7) in Kombination mit einem U-Profil zur Bereitstellung
einer Metallstruktur zur Verbesserung der akustischen Eigenschaften von Trockenwänden,
wobei das U-Profil zwei einander gegenüberliegende Längsseitenwände (2, 3) umfasst,
die durch einen planaren Steg (4) miteinander verbunden sind, wobei der planare Steg
Öffnungen (5a, 5b, 5c, 5d, 5e, 5f) umfasst, wobei die Öffnungen
- Schlitze mit einer Breite von 5 mm bis 100 mm und einer Länge von 80 mm bis 500
mm sind oder
- C-, U- oder V-förmige oder allgemein zickzackartige Formen sind und ineinandergreifen,
mit einer Länge von 10 mm bis 400 mm und einer Breite von 5 mm bis 40 mm oder
- in Form eines Gitters vorliegen;
wobei die mehreren Schallstützen (7) zwei einander gegenüberliegende Längsseitenwände
umfassen, die durch eine Profilbrücke mit elastischen Eigenschaften miteinander verbunden
sind, wobei die Profilbrücke ein erstes und ein zweites im Wesentlichen planares Glied,
die mit den jeweiligen Seitenwänden verbunden sind, und ein Glied, das das erste und
das zweite planare Glied miteinander verbindet, umfasst, wobei das Verbindungsglied
entlang der Längsrichtung der Stütze angeordnete Schlitze umfasst.
16. Verwendung nach Anspruch 15, wobei die Trockenwand ein einziger Rahmen, ein versetzter
Rahmen oder ein Doppelrahmen ist.
1. Cadre pour paroi sèche comprenant une pluralité de montants (7); et au moins un canal
en U (1), ledit canal en U comprenant deux parois latérales longitudinales opposées
(2, 3) interconnectées par une âme plane (4), dans lequel ladite âme plane comporte
des ouvertures (5a, 5b, 5c, 5d, 5e, 5f);
caractérisé en ce que:
- lesdites ouverture:
sont des fentes présentant une largeur comprise entre 5 mm et 100 mm et une longueur
comprise entre 80 mm et 500 mm, ou
présentent une configuration en C, en U ou en V essentiellement en forme de chevron
et sont entrelacées les unes dans les autres, présentant une longueur comprise entre
10 mm et 400 mm et une largeur comprise entre 5 mm et 40 mm, ou
ont la forme d'une grille; et
- ladite pluralité de montants (7) est une pluralité de montants acoustiques comprenant
deux parois latérales longitudinales opposées interconnectées par un pont de section
présentant des propriétés élastiques, ledit pont de section comprenant un premier
et un second éléments sensiblement plans connectés aux parois latérales respectives
et un élément qui interconnecte lesdits premier et second éléments plans, ledit élément
d'interconnexion comportant des fentes agencées le long de la direction longitudinale
du montant.
2. Cadre pour paroi sèche selon la revendication 1, dans lequel les ouvertures (5a, 5b,
5c, 5d, 5e, 5f) sont placées dans la partie centrale de ladite âme plane (4), ou dans
lequel les ouvertures sont placées à des parties distales de ladite âme plane (4),
ou dans lequel les ouvertures sont placées aux bords formés par l'âme plane (4) et
les parois latérales (2, 3).
3. Cadre pour paroi sèche selon la revendication 1 ou 2, dans lequel les ouvertures (5a,
5b, 5c, 5d, 5e, 5f) sont des fentes.
4. Cadre pour paroi sèche selon la revendication 3, dans lequel les fentes sont agencées
en rangées.
5. Cadre pour paroi sèche selon la revendication 3, dans lequel les fentes sont agencées
en une rangée située dans la partie médiane de l'âme.
6. Cadre pour paroi sèche selon la revendication 4, dans lequel les fentes sont agencées
en deux ou plus de deux rangées situées dans la partie médiane de l'âme, à des parties
distales de ladite âme plane ou aux bords formés par l'âme plane et les parois latérales.
7. Cadre pour paroi sèche selon l'une quelconque des revendications 3 à 6, dans lequel
les fentes présentent une longueur comprise entre 200 mm et 480 mm, et une séparation
entre les fentes comprise entre 20 mm et 150 mm, de préférence entre 20 mm et 50 mm.
8. Cadre pour paroi sèche selon la revendication 1 ou 2, dans lequel les ouvertures se
présentent sous la forme d'une grille.
9. Cadre pour paroi sèche selon la revendication 8, dans lequel la grille s'étend sur
10 % à 80 %, de préférence sur 30 % à 60 % de la largeur de l'âme plane.
10. Cadre pour paroi sèche selon l'une quelconque des revendications 1 à 9, dans lequel
les ouvertures ont toutes la même forme.
11. Cadre pour paroi sèche selon l'une quelconque des revendications 1 à 10, dans lequel
les ouvertures sont obtenues par des techniques au laser, des techniques mécaniques
avec ou sans enlèvement de métal, comprenant le poinçonnage, le perçage, l'estampage,
le mandrinage et le déploiement.
12. Cadre pour paroi sèche selon l'une quelconque des revendications 1 à 11, qui est un
cadre unique.
13. Paroi sèche comprenant le cadre pour paroi sèche selon l'une quelconque des revendications
1 à 12 de concert avec une pluralité de panneaux (8), de préférence des plaques de
plâtre, fixées sur lesdits montants (7) de chaque côté de ceux-ci et de préférence
sur lesdits canaux en U.
14. Paroi sèche selon la revendication 13, comprenant en outre un matériau de remplissage
qui est placé entre les panneaux.
15. Utilisation d'une pluralité de montants acoustiques (7) en combinaison avec un canal
en U pour former une structure métallique visant à améliorer les propriétés acoustiques
de parois sèches, ledit canal en U comprenant deux parois latérales longitudinales
opposées (2, 3) interconnectées par une âme plane (4), dans laquelle ladite âme plane
comporte des ouvertures (5a, 5b, 5c, 5d, 5e, 5f), lesdites ouverture:
étant des fentes présentant une largeur comprise entre 5 mm et 100 mm et une longueur
comprise entre 80 mm et 500 mm, ou
présentant une configuration en C, en U ou en V essentiellement en forme de chevron
et étant entrelacées les unes dans les autres, présentant une longueur comprise entre
10 mm et 400 mm et une largeur comprise entre 5 mm et 40 mm, ou
ayant la forme d'une grille; et
dans lequel ladite pluralité de montants acoustiques (7) comprend deux parois latérales
longitudinales opposées interconnectées par un pont de section présentant des propriétés
élastiques, ledit pont de section comprenant un premier et un second éléments sensiblement
plans connectés aux parois latérales respectives et un élément qui interconnecte lesdits
premier et second éléments plans, ledit élément d'interconnexion comportant des fentes
agencées le long de la direction longitudinale du montant.
16. Utilisation selon la revendication 15, dans lequel la paroi latérale est un seul cadre,
un cadre échelonné ou un double cadre.