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EP 3 252 256 B1 |
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EUROPEAN PATENT SPECIFICATION |
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Mention of the grant of the patent: |
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30.12.2020 Bulletin 2020/53 |
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Date of filing: 30.05.2017 |
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International Patent Classification (IPC):
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(54) |
WINDOW BRACKET ASSEMBLY
FENSTERHALTERUNGSANORDNUNG
ENSEMBLE D'APPUI DE FENÊTRE
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Designated Contracting States: |
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AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL
NO PL PT RO RS SE SI SK SM TR |
(30) |
Priority: |
31.05.2016 DK PA201670392
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Date of publication of application: |
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06.12.2017 Bulletin 2017/49 |
(73) |
Proprietor: VKR Holding A/S |
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2970 Hørsholm (DK) |
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Inventor: |
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- MELSEN, Michael
8632 Lemming (DK)
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(74) |
Representative: AWA Denmark A/S |
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Strandgade 56 1401 Copenhagen K 1401 Copenhagen K (DK) |
(56) |
References cited: :
CN-A- 104 533 202 JP-B2- 3 849 106
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JP-A- S61 237 788 US-B1- 8 562 310
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Note: Within nine months from the publication of the mention of the grant of the European
patent, any person may give notice to the European Patent Office of opposition to
the European patent
granted. Notice of opposition shall be filed in a written reasoned statement. It shall
not be deemed to
have been filed until the opposition fee has been paid. (Art. 99(1) European Patent
Convention).
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[0001] The present invention relates to a window bracket assembly for use in connection
with a window, comprising a metal bracket and at least one sacrificial anode, use
of a window mounting assembly and a window provided with said bracket assembly.
[0002] It is a well known problem that metal construction parts, such as wall ties and steel
reinforcement in concrete will corrode over time, and they will eventually need to
be repaired or replaced. Corrosion is a chemical process where for example oxygen
reacts with a metal such as iron and form iron oxide, a.k.a. rust, particularly in
the presence of an electrolyte, such as aqueous saline solutions. In the process electrons
are removed from the metal, which then is referred to as the anode, and transferred
to a different area, which doesn't corrode and which is referred to as the cathode.
[0003] When it comes to windows and doors, the brackets are traditionally made of steel,
but when they are to be used in strongly corrosive environments such as for indoor
swimming pools categorized as C4 in the ISO 1461 corrosion category, steel will corrode
too quickly in relation to expected lifetime of the window. This is because of the
high humidity content and the high content of chlorine/chlorine amines or hydrochloric
acid compounds in the air. Small perforations in the vapor barrier may result in chlorine
containing vapour building up and condensing on the brackets. Since the brackets are
often placed on large windows and may be hidden in the construction, they are hard
to replace and other kinds of corrosive treatments need to be applied. Examples of
corrosion protection with sacrificial anodes in buildings can be found in JPS61237788,
upon which the peample of claim 1 is based, and
JP2014214314. In this kind of environment alternative protection are required, but the known methods
all have their drawbacks. For example coatings of different kinds, such as aqua and
epoxy coating, powder coating, have proven not to be sufficiently scratch resistant
and the protective layer may therefore be broken during installation or corrosion
will creep under the protective layer. Another example is galvanization or chromate
conversion coating; however, the layer required to protect the bracket, and the screws
for that matter, would be too thick to make it feasible to manufacture, when it has
to resist corrosion for an extended time in a strongly corrosive environment.
[0004] Therefore it is an object of the present invention to provide a solution that can
make a metal bracket endure prolonged exposure to a strongly corrosive environment
containing humidity and chlorine compounds or other strongly corrosive airborne compounds.
[0005] In one aspect of the invention, this is achieved with a window bracket assembly according
to claim 1.
[0006] The metal bracket may be used to mounting a roof window, a façade window or any other
kind of window. A bracket is to be understood as any kind of bracket or furniture
used on a window or a door for that matter, such as mounting brackets, fasteners,
hooks, stays, hinges, closure elements, bearings etc. The window may be fixed or it
may be able to open.
[0007] In order for the sacrificial anode to work, an electrolyte is required. The electrolyte
may be present because a water vapor barrier is perforated and precipitation seeps
into the construction, or the ceiling or wall has not been insulated correctly. The
electrolyte may also come from inside the building in the form of water vapor generated
in a heated room such as a swimming bath. When the vapor comes in contact with a bracket,
which directly, or indirectly through a cold bridge, is in contact with the cooler
outside air, the vapor will condense. The condensed vapor is as such free from salts
but will try to react with conductive substanses in the air such as chlorine compounds
thereby forming a conductive fluid. Thereby a strongly corrosive environment will
form, but also an environment suitable for use of a sacrificial anode, as a conductive
fluid is present. Therefore no external source of power is required and the electrons
will move by themselves.
[0008] "In the vicinity of" may be understood as a distance between 0.001 mm and 0.5 mm
between the sacrificial anode and the bracket it is intended to protect. The reason
for a small distance being possible is that an oxide film will form between the two
faces in the presence of an electrolyte, and thereby further corrosive compounds is
prevented from depositing between the bracket and the sacrificial anode.
[0009] In the connection point, direct contact may be present but no direct contact is necessary.
A distance between the bracket and the sacrificial anode should though not exceed
0.5 mm as electrolytes should still be transferable for example if aqueous saline
solutions enter the space between the bracket and the sacrificial anode.
[0010] The one or more connection points may be selected amongst one or more points, one
or more faces and optionally one or more edges.
[0011] The at least one sacrificial anode placed in contact with or in the vicinity of the
bracket and preferably being adapted to the shape and size of the bracket, and/or
having a face to face contact may be referred to as a primary sacrificial anode.
[0012] The bracket in the form of a window mounting bracket may comprise a base element
adapted to extend in parallel to a first side of a window, a leg element which comprises
a first and a second leg. The first leg may be adapted to extend in parallel to a
second side of a window perpendicular to the first side of the window, and a second
leg which may be adapted to extend in parallel to the base element, and an angle element
which may be adapted to be sandwiched between the base element and the leg element.
[0013] In general the number, shape and/or overall design of sacrificial anodes may be adapted
to the number, shape and/or overall design of the brackets.
[0014] The thickness of the sacrificial anode may be between 150 µm and 2000 µm, preferably
300 µm and 1000 µm and more preferably between 400 µm and 600 µm, depending on how
much the life time of the bracket should be extended. An anode having a thickness
of 500 µm and covering the two largest surfaces of the bracket has been found to be
advantageous. A protective coating of a thickness between 150 µm and 1000 µm would
not be feasible using the above mentioned galvanic or chromate conversion coatings
on brackets having the dimensions commonly used for brackets for windows. The thickness
of the sacrificial anode may be the same thickness or smaller than the thickness of
the bracket or the plate material used for the bracket.
[0015] Likewise the better connection, i.e. area wherein faces of the bracket directly or
indirectly touch each other or overlap, the better corrosive protection of the bracket
may be provided. An advantage of this kind of protection is that it also protects
attachment elements such as screws, rivets or bushings used for attaching the bracket
to the window. During mounting of the attachment elements tension cracks may arise
in the bracket. In this case the sacrificial anode will also protect this weakened
area from corrosion.
[0016] The sacrificial anode is shaped from a plate. This makes it easier to mount as it
may be mounted in at the same time as the bracket as the same attachment means as
being commonly used, may be used for attaching the sacrificial anode as well. Additionally
it is suitable for being mounted at a later stage after installation of the window.
The thickness of the sacrificial anode may then be understood as the plate thickness
of the sacrificial anode. The plate may be perforated.
[0017] It is also possible to employ a number of smaller sacrificial anodes attached to
the bracket by means of mechanical attachment such as screws or rivets or by means
of an adhesive, by welding or by rolling.
[0018] The sacrificial anode covers the main surface and optionally the adjacent edges..
By covering a large surface of the bracket, protection is also provided to the nearby
surrounding areas such as screws or smaller projections not as such covered by the
sacrificial anode.
[0019] The bracket may comprise several bracket elements. A main surface is defined as one
unobstructed surface area, with a general plane surface. Preferably the main surface
is the largest surface of a bracket. The main surface which is in contact with the
sacrificial anode is a surface that faces a side of the bracket that is adapted to
face away from a construction or window to which the bracket is adapted to be mounted.
[0020] In a further embodiment the sacrificial anode comprises at least one of zinc, magnesium
and aluminum. Zinc would be the preferred material. Magnesium, being less noble than
zinc, may also be used. It will corrode at a faster pace than zinc, but the deposits
will slow down the corrosion over all. In order for the sacrificial anode to workit
has to be of a metal, which is less noble than the metal used for the bracket. Thereby
the electrons can be transferred when an electrolyte like aqueous saline solutions
is present. The metals relative nobility can be found in electrochemical series or
galvanic series. The galvanic series for stagnant seawater may be used as reference.
The sacrificial anode may also be made of aluminum alloy, if the bracket is made of
a different more noble metal or alloy such as steel.
[0021] The metal bracket for windows typically have a plate thickness of 5 mm or less, preferably
between 2 and 4 mm, more preferably between 2.5 mm and 3.5 mm. The metal bracket may
comprise several elements bent into different shapes and fastened to each other in
a suitable way.
[0022] The bracket will often be made mainly of steel or iron or other iron based alloys,
preferably carbon steel or carbon iron. The sacrificial anode cannot in the latter
case be made of iron as well, but must instead be of zinc or a different metal positioned
lower in the electrochemical series or galvanic series than the metal for the bracket
may be used instead.
[0023] In a specific embodiment not forming part of the invention the sacrificial anode
is integrated with at least a part of the bracket. The two materials may be rolled
together prior to shaping or bending of the bracket or in other ways attached to each
other. No matter if the bracket and the sacrificial anode is integrated or not, the
two elements form part of the window bracket assembly.
[0024] The sacrificial anode may be positioned lower in the electrochemical series or galvanic
series than the metal bracket. This facilitates movement of the ions.
[0025] The metal bracket may of course still be provided with a protective coating, such
as a zinc coating and/or a chromate conversion coating. This coating is usually in
the range of 30 - 65 µm. This also extends the lifetime of the bracket, by delaying
corrosion and hence extending the time before the deterioration of the sacrificial
anode sets in. The bracket may also be painted as a form of protection.
[0026] The metal bracket may have a silica content of 0.2-0.35 % when made of steel. The
metal bracket may for coating purposes have a surface roughness of at least R
a 12
1/2 µm.
[0027] The bracket and/or the sacrificial anode may be provided with at least one attachment
member for interconnection. This makes it easier to connect the two metal elements
to each other. The attachment member may be in the form of a snap closure or resilient
members on the sacrificial anode, making it possible to grip around a part of the
bracket. This is particular practical when retrofitting the sacrificial anode on a
bracket on an already installed window, for example in connection with performing
maintenance.
[0028] A surface geometry of the sacrificial anode follows at least partly a surface geometry
of the metal bracket in a mounted state. That means that if the bracket has projections
or indentations, the sacrificial anode may have corresponding indentations or projections.
This provides for a comparatively large area of contact between the bracket and the
sacrificial anode, and thereby better corrosion protection of the bracket.
[0029] The metal bracket comprises a main surface and adjacent edges, and the sacrificial
anode covers the main surface and optionally the adjacent edges. The metal bracket
may comprise several bracket elements, each comprising a main surface. The main surface
is usually the largest plane surface of the bracket element. The main surface faces
away from the construction to which the bracket is configured to be fastened to. The
sacrificial anode may be shaped like a tray, partly surrounding a part of the bracket,
for example a bracket element such as the base element or the leg element of a window
bracket as described above.
[0030] The sacrificial anode may be positioned on a cold side of the metal bracket. That
is the side configured to be the colder side when the bracket is in place on the mounted
window. When the sacrificial anode is placed on the cold side of the metal bracket,
which likely is the surface facing away from the construction or window, vapor will
more likely condense here, resulting in a better connection between the sacrificial
anode and bracket and thereby easier transfer of electrons and consequently better
corrosion protection.
[0031] In a further other aspect of the invention, the window bracket assembly is used in
connection with a window, preferably a roof window or a facade window.
[0032] In a further aspect of the invention a window is provided with the window bracket
assembly.
[0033] In a preferred embodiment the window is placed in connection with a secondary sacrificial
anode extending in one or more directions from a frame of the window and is placed
in connection with the window bracket assembly in one or more connection points.
[0034] A secondary sacrificial anode may be established as a secondary part of a vapor barrier
assembly. The vapor barrier assembly is usually placed at an interior side of the
insulation of a building construction. The vapor barrier assembly comprises either
a flexible member, e.g. a rubber or a plastic foil, or a rigid member, such as a board
that may be treated with a vapor retarder. An adhering member may be used for fastening
the vapor barrier to the window or to other construction parts in the building.
[0035] By providing a secondary sacrificial anode in parallel to or as a part of the vapor
barrier, humid air which may pass through unintended holes in the vapor barrier will
condense on the secondary sacrificial anode, which then then will be able to protect
surrounding metal elements including window brackets. The secondary sacrificial anode
may be made of zinc aluminum or magnesium, or alloys comprising one or more of said
materials.
[0036] In general the physical and chemical characteristics that apply to the material of
the primary sacrificial anode, applies to the secondary sacrificial anode as well,
but they need not be made of the same material.
[0037] Further embodiments and advantages are set forth in the dependent claims.
[0038] In the following the invention will be described in further detail by means of examples
of embodiments with reference to the schematic drawings, in which
fig. 1 shows a window provided with a window bracket assembly in each of its corners.
Fig. 2 shows the same brackets with sacrificial anodes, however the window has been
hidden and further details of the window mounting assembly can be seen.
Fig. 3 shows a different embodiment of the bracket assembly with sacrificial anodes,
where the brackets are configured to be placed on an openable window.
Fig. 4 shows a cross section of a roof structure provided with an embodiment of the
secondary sacrificial anode.
[0039] A window with an embodiment of the bracket assembly according to the invention comprising
a metal bracket and a sacrificial anode is shown in Fig. 1 and the bracket assemblies
are shown alone in Fig. 2
[0040] A bracket assembly is provided at each of the corners of the window and is denoted
1a, 1b, 1c and 1d respectively. Each of the window bracket assemblies 1a-1d comprises
a bracket and a sacrificial anode 23, 24, 25. The metal bracket comprises several
bracket elements, i.e. a base element 3 provided with sacrificial anode 23, a leg
element 4 provided with sacrificial anode 24 and an angle element 5 provided with
sacrificial anode 25. The base element 3 is placed in parallel to one leg of the leg
element 4. The angle element 5 is partly sandwiched between the base element 3 and
the leg element 4. Both the leg element 4 and the base element 3 are attached to a
frame part of a window 6.
[0041] The sacrificial anodes 23, 24 have the same circumferential shapes as the base element
3 and the leg element 4, respectively, and each cover a main surface of the metal
bracket. The sacrificial anode 24 covering the leg element 4 is also following its
surface geometry as it is also bent in an angle. The sacrificial anode 23 covering
the base element 3 on bracket assembly 1c and 1d is not completely following the surface
geometry of the base element 3. As a part of the surface of the base element 3 is
displaced in the plane, surface contact is only partly obtained. The sacrificial anode
23 is shaped such that it follows the surface geometry of a surface of the bracket.
[0042] The base elements 3 in 1a and 1b are divided in two, and likewise is the sacrificial
anodes 23a, 23b. The sacrificial anode 25 has also been divided in two as the surface
is interrupted by a projection.
[0043] A thickness t of the sacrificial anode has also been shown, but has been made larger
for illustrative purposes. The thickness of the plate for the sacrificial anode used
in this embodiment is 0.5 mm, corresponding to 1/6 of the thickness of the base element
3 of the bracket. Different thicknesses may be used as well, depending amongst other
things on which environment they are to be used in and on the materials used for the
bracket and the anode.
[0044] The sacrificial anodes 23, 24, 25 are provided with through going holes in the same
places as the bracket elements 3, 4, 5. This makes it possible to attach the sacrificial
anodes 23, 24, 25 to the bracket elements 3, 4, 5 in the same working operation as
the attachment of the bracket elements or bracket to the construction or window as
the same attachment means, such as screws 8, may fasten both the bracket 3, 4, 5 and
the sacrificial anode 23, 24, 25 to the construction, window 6 or a neighbouring bracket.
[0045] The thickness t
b, is the thickness of the plate material used for the bracket. In this embodiment
it is 3 mm, but it may be thicker or thinner.
[0046] In fig. 1 the sacrificial anode 23 is provided with attachment members 7 that grip
around the base element 3. These attachment members 7 may be dispensed with and the
sacrificial anode may be attached to the bracket in the same step as when the bracket
is attached to the window frame part. The sacrificial anode may be tray shaped and
cover the edges of the bracket elements as well.
[0047] The window 6 and the window bracket assembly 1 shown in Figs 1 and 2 are suitable
for being used in a ridge constellation, where two windows meet top-to-top, the tops
of the windows resting on a ridge beam extending in parallel with the ridge and with
the bottoms resting on opposite wall or façade elements, or in the case of installation
on substantially flat roofs, on opposite upstands.
[0048] Fig. 3 shows a different embodiment of a bracket assembly 1a-1f, configured to be
used on an openable window. The brackets assemblies 1a, 1b, 1c, 1d are configured
to be positioned on a window frame in substantially the same way as in Fig 1, while
the bracket assemblies 1e, 1f, 1g comprising the brackets 9, 30 are configured to
be positioned on a sash of a window and are all provided with sacrificial anodes 29,
20. It will, however, be understood that it is not necessary to provide all brackets,
associated with a window, with sacrificial anodes in order to achieve an advantageous
effect.
[0049] A difference between the embodiments in Figs 2 and 3 is that the sacrificial anode
23c is configured to be positioned on a different embodiment of the bracket 3 in Fig.
3.
[0050] Fig. 4 shows a cross section of a roof structure 40, provided with a window 6, a
flashing element 42 and insulation 43. The window comprises a frame 44 and a bracket
3 resting on a beam of a load bearing structure. Between the bracket 3 and the frame
44 a secondary sacrificial anode 45 is positioned. The secondary sacrificial anode
45 is in the form of a plate, but it may be in the form of a film or foil as well.
By spanning the gap between the frame 44 of the window and the load-bearing structure
is serves as a vapour barrier, which prevent or hinders hot air with a high moisture
content from within the building in reaching the bracket 3.
[0051] In general, the features of the embodiments shown and described may be combined freely
and no feature should be seen as essential unless stated in the independent claims.
[0052] The invention should not be regarded as being limited to the embodiments shown in
the drawings and described in the above. Various modifications and combinations may
be carried out within the scope of the appended claims.
1. Window bracket assembly (1) for use in connection with a window (6) and a construction,
comprising a metal bracket (3,4,5) and at least one sacrificial anode (20,23,24,25,29),
wherein the metal bracket (3,4,5) is placed in contact with or in the vicinity of
the at least one sacrificial anode (20;23;24;25;29) and where the metal bracket (3,4,5)
and the sacrificial anode (20;23;24;25;29) have one or more mutual connection points,
for extending a lifetime of the metal bracket (3,4,5) characterized in that the metal bracket (3,4,5), which preferably comprises several bracket elements (3,4,5),
comprises a main surface and adjacent edges, wherein the main surface is an unobstructed
surface area, with a general plane surface, the main surface which is in contact with
the sacrificial anode (20,23,24,25,29) is a surface that faces a side of the bracket
that is adapted to face away from the construction or window (6) to which the bracket
is adapted to be mounted, and wherein the sacrificial anode (20;23;24;25;29) is shaped
from a plate and its surface geometry follows at least partly a surface geometry of
the metal bracket (3,4,5) in a mounted state, and the sacrificial anode (23, 24, 25)
is provided with through going holes in the same places as the bracket elements (3,
4, 5), which makes it possible to attach the sacrificial anode (23, 24, 25) to the
bracket elements (3, 4, 5) in the same working operation as the attachment of the
bracket elements (3, 4, 5) or bracket (3, 4, 5) to the construction or window as the
same attachment means, such as screws (8), may fasten both the bracket (3, 4, 5) and
the sacrificial anode (23,24, 25) to the construction, window (6) or a neighbouring
bracket,
wherein the sacrificial anode (20;23;24;25;29) covers the main surface and optionally
the adjacent edges .
2. Window bracket assembly according to claim 1, wherein the sacrificial anode (20;23;24;25;29)
has a thickness between 150 µm and 2000 µm, preferably between 300 µm and 1000 µm
and more preferably between 400 µm and 600 µm.
3. Window bracket assembly (1) according to claim 1, wherein the metal bracket (3,4,5)
has a plate thickness of 5 mm or less, preferably between 2 and 4 mm, more preferably
between 2.5 mm and 3.5 mm.
4. Window bracket assembly (1) according to any one of the preceding claims, wherein
the sacrificial anode (20;23;24;25;29) comprises at least one of zinc, magnesium and
aluminum.
5. Window bracket assembly (1) according to any one of the preceding claims, wherein
the metal bracket (3,4,5) is mainly made of steel or iron or other iron based alloys,
preferably carbon steel or carbon iron.
6. Window bracket assembly (1) according to any one of the preceding claims, wherein
the sacrificial anode (20;23;24;25;29) is positioned lower in the galvanic series
than the metal bracket (3,4,5).
7. Window bracket assembly (1) according to any one of the preceding claims, wherein
the metal bracket (3,4,5) is provided with a protective coating, such as a zinc coating
and/or a chromate conversion coating.
8. Window bracket assembly (1) according to any one of the preceding claims, wherein
the metal bracket (3,4,5) and/or the sacrificial anode (20;23;24;25;29) is provided
with at least one attachment member (7) for interconnection.
9. Window bracket assembly (1) according to any one of the preceding claims, wherein
the sacrificial anode (20;23;24;25;29) is positioned on the side configured to be
a cold side of the metal bracket (3,4,5).
10. Use of window bracket assembly (1) according to any one of the preceding claims in
connection with a window (6), preferably a roof window.
11. Window provided with a window bracket assembly (1) according to any one of claims
1-9.
12. Window according to claim 11 placed in connection with a secondary sacrificial anode
(20;23;24;25;29) extending in one or more directions from a frame of the window and
is placed in connection with the window bracket assembly (1) in one or more connection
points.
1. Fensterhalterungsanordnung (1) zur Verwendung in Verbindung mit einem Fenster (6)
und einer Konstruktion, eine Metallhalterung (3, 4, 5) und mindestens eine Opferanode
(20, 23, 24, 25, 29) umfassend, wobei die Metallhalterung (3, 4, 5) mit der mindestens
einen Opferanode (20; 23; 24; 25; 29) in Kontakt oder in deren Nähe angeordnet ist
und wobei die Metallhalterung (3, 4, 5) und die Opferanode (20; 23; 24; 25; 29) einen
oder mehrere gemeinsame Verbindungspunkte aufweisen, um die Betriebsdauer der Metallhalterung
(3, 4, 5) zu verlängern, dadurch gekennzeichnet, dass die Metallhalterung (3, 4, 5), die vorzugsweise mehrere Halterungselemente (3, 4,
5) umfasst, eine Hauptfläche und angrenzende Kanten umfasst, wobei die Hauptfläche
eine unversperrte Oberfläche mit einer im Allgemeinen ebenen Oberfläche ist, wobei
die Hauptfläche, die die Opferanode (20; 23; 24; 25; 29) berührt, eine Fläche ist,
die einer Seite der Halterung zugewandt ist, die dazu eingerichtet ist, von der Konstruktion
oder dem Fenster (6), an die/das die Halterung zu montieren ist, abgewandt zu sein,
und wobei die Opferanode (20; 23; 24; 25; 29) aus einer Platte geformt ist und ihre
Oberflächengeometrie zumindest teilweise einer Oberflächengeometrie der Metallhalterung
(3, 4, 5) im montierten Zustand folgt, und wobei die Opferanode (23; 24; 25) mit durchgehenden
Bohrungen an denselben Stellen wie die Halterungselemente (3, 4, 5) versehen ist,
wodurch es ermöglicht wird, die Opferanode (23; 24; 25) im selben Betriebsvorgang
an den Halterungselementen (3, 4, 5) zu befestigen wie die Befestigung der Halterungselemente
(3, 4, 5) oder Halterung (3, 4, 5) an der Konstruktion oder am Fenster, da dieselben
Befestigungseinrichtungen, zum Beispiel Schrauben (8), sowohl die Halterung (3, 4,
5) als auch die Opferanode (23, 24, 25) an der Konstruktion, am Fenster (6) oder einer
angrenzenden Halterung fixieren können,
wobei die Opferanode (20; 23; 24; 25; 29) die Hauptfläche und optional die angrenzenden
Kanten abdeckt.
2. Fensterhalterungsanordnung nach Anspruch 1, wobei die Opferanode (20; 23; 24; 25;
29) eine Stärke zwischen 150 µm und 2000 µm, vorzugsweise zwischen 300 µm und 1000
µm und weiter bevorzugt zwischen 400 µm und 600 µm aufweist.
3. Fensterhalterungsanordnung (1) nach Anspruch 1, wobei die Metallhalterung (3, 4, 5)
eine Plattenstärke von maximal 5 mm, vorzugsweise zwischen 2 und 4 mm, weiter bevorzugt
zwischen 2,5 mm und 3,5 mm aufweist.
4. Fensterhalterungsanordnung (1) nach einem der vorstehenden Ansprüche, wobei die Opferanode
(20; 23; 24; 25; 29) Zink, Magnesium und/oder Aluminium umfasst.
5. Fensterhalterungsanordnung (1) nach einem der vorstehenden Ansprüche, wobei die Metallhalterung
(3, 4, 5) hauptsächlich aus Stahl oder Eisen oder anderen Legierungen auf Eisenbasis,
vorzugsweise Kohlenstoffstahl oder Kohlenstoffeisen besteht.
6. Fensterhalterungsanordnung (1) nach einem der vorstehenden Ansprüche, wobei die Opferanode
(20; 23; 24; 25; 29) in der galvanischen Spannungsreihe weiter unten als die Metallhalterung
(3, 4, 5) angeordnet ist.
7. Fensterhalterungsanordnung (1) nach einem der vorstehenden Ansprüche, wobei die Metallhalterung
(3, 4, 5) mit einer Schutzbeschichtung, zum Beispiel einer Zinkbeschichtung und/oder
einer chromatierten Beschichtung versehen ist.
8. Fensterhalterungsanordnung (1) nach einem der vorstehenden Ansprüche, wobei die Metallhalterung
(3, 4, 5) und/oder die Opferanode (20; 23; 24; 25; 29) mit mindestens einem Befestigungselement
(7) zur Verbindung versehen ist.
9. Fensterhalterungsanordnung (1) nach einem der vorstehenden Ansprüche, wobei die Opferanode
(20; 23; 24; 25; 29) auf der Seite positioniert ist, die dazu ausgelegt ist, eine
kalte Seite der Metallhalterung (3, 4, 5) zu sein.
10. Verwendung einer Fensterhalterungsanordnung (1) nach einem der vorstehenden Ansprüche
in Verbindung mit einem Fenster (6), vorzugsweise einem Dachfenster.
11. Fenster, das mit einer Fensterhalterungsanordnung (1) nach einem der Ansprüche 1-9
versehen ist.
12. Fenster nach Anspruch 11, das in Verbindung mit einer sekundären Opferanode (20; 23;
24; 25; 29) angeordnet ist, die sich in eine oder mehrere Richtungen von einem Rahmen
des Fensters erstreckt und in Verbindung mit der Fensterhalterungsanordnung (1) in
einem oder mehreren Verbindungspunkten angeordnet ist.
1. Ensemble d'appui de fenêtre (1) destiné à être utilisé en relation avec une fenêtre
(6) et une construction, comprenant un appui métallique (3, 4, 5) et au moins une
anode sacrificielle (20, 23, 24, 25, 29), l'appui métallique (3, 4, 5) étant placé
en contact avec ou à proximité de l'au moins une anode sacrificielle (20 ; 23 ; 24
; 25 ; 29) et l'appui métallique (3, 4, 5) et l'anode sacrificielle (20 ; 23 ; 24
; 25 ; 29) ayant au moins un point de connexion mutuelle, pour prolonger la durée
de vie de l'appui métallique (3, 4, 5), caractérisé en ce que l'appui métallique (3, 4, 5), qui comprend de préférence plusieurs éléments d'appui
(3, 4, 5), comprend une surface principale et des bords adjacents, la surface principale
étant une zone de surface non obstruée, avec une surface générale plane, la surface
principale qui est en contact avec l'anode sacrificielle (20, 23, 24, 25, 29) étant
une surface qui fait face à un côté de l'appui qui est conçu pour être tourné à l'opposé
de la construction ou de la fenêtre (6) sur laquelle l'appui est conçu pour être monté,
et l'anode sacrificielle (20 ; 23 ; 24 ; 25 ; 29) étant formée à partir d'une plaque
et sa géométrie de surface suivant au moins partiellement la géométrie de surface
de l'appui métallique (3, 4, 5) à l'état monté, et l'anode sacrificielle (23, 24,
25) étant pourvue de trous traversants aux mêmes endroits que les éléments d'appui
(3, 4, 5), ce qui permet de fixer l'anode sacrificielle (23, 24, 25) aux éléments
d'appui (3, 4, 5) dans la même opération de travail que la fixation des éléments d'appui
(3, 4, 5) ou de l'appui (3, 4, 5) à la construction ou à la fenêtre de sorte que le
même moyen de fixation, tel que des vis (8), puisse fixer à la fois l'appui (3, 4,
5) et l'anode sacrificielle (23, 24, 25) à la construction, à la fenêtre (6) ou à
un appui voisin,
l'anode sacrificielle (20 ; 23 ; 24 ; 25 ; 29) couvrant la surface principale et éventuellement
les bords adjacents.
2. Ensemble d'appui de fenêtre selon la revendication 1, l'anode sacrificielle (20 ;
23 ; 24 ; 25 ; 29) ayant une épaisseur comprise entre 150 µm et 2 000 µm, de préférence
entre 300 µm et 1 000 µm et de préférence encore entre 400 µm et 600 µm.
3. Ensemble d'appui de fenêtre (1) selon la revendication 1, l'appui métallique (3, 4,
5) ayant une épaisseur de plaque de 5 mm ou moins, de préférence comprise entre 2
et 4 mm, de préférence encore comprise entre 2,5 mm et 3,5 mm.
4. Ensemble d'appui de fenêtre (1) selon l'une quelconque des revendications précédentes,
l'anode sacrificielle (20 ; 23 ; 24 ; 25 ; 29) comprenant du zinc, du magnésium et/ou
de l'aluminium.
5. Ensemble d'appui de fenêtre (1) selon l'une quelconque des revendications précédentes,
l'appui métallique (3, 4, 5) étant principalement constitué d'acier ou de fer ou d'autres
alliages à base de fer, de préférence d'acier au carbone ou de fer au carbone.
6. Ensemble d'appui de fenêtre (1) selon l'une quelconque des revendications précédentes,
l'anode sacrificielle (20 ; 23 ; 24 ; 25 ; 29) étant positionnée plus bas dans la
série galvanique que l'appui métallique (3, 4, 5).
7. Ensemble d'appui de fenêtre (1) selon l'une quelconque des revendications précédentes,
l'appui métallique (3, 4, 5) étant pourvu d'un revêtement protecteur, tel qu'un revêtement
de zinc et/ou un revêtement de conversion au chromate.
8. Ensemble d'appui de fenêtre (1) selon l'une quelconque des revendications précédentes,
l'appui métallique (3, 4, 5) et/ou l'anode sacrificielle (20 ; 23 ; 24 ; 25 ; 29)
étant pourvu d'au moins un élément de fixation (7) pour l'interconnexion.
9. Ensemble d'appui de fenêtre (1) selon l'une quelconque des revendications précédentes,
l'anode sacrificielle (20 ; 23 ; 24 ; 25 ; 29) étant positionnée sur le côté conçu
pour être un côté froid de l'appui métallique (3, 4, 5).
10. Utilisation d'un ensemble d'appui de fenêtre (1) selon l'une quelconque des revendications
précédentes en relation avec une fenêtre (6), de préférence une fenêtre de toit.
11. Fenêtre pourvue d'un ensemble de support de fenêtre (1) selon l'une quelconque des
revendications 1 à 9.
12. Fenêtre selon la revendication 11 placée en relation avec une anode sacrificielle
secondaire (20 ; 23 ; 24 ; 25 ; 29) s'étendant dans au moins une direction à partir
d'un cadre de la fenêtre et étant placée en relation avec l'ensemble d'appui de fenêtre
(1) en au moins un point de liaison.
REFERENCES CITED IN THE DESCRIPTION
This list of references cited by the applicant is for the reader's convenience only.
It does not form part of the European patent document. Even though great care has
been taken in compiling the references, errors or omissions cannot be excluded and
the EPO disclaims all liability in this regard.
Patent documents cited in the description