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EP 0 829 587 B1 |
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EUROPEAN PATENT SPECIFICATION |
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Mention of the grant of the patent: |
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12.03.2003 Bulletin 2003/11 |
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Date of filing: 13.09.1997 |
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International Patent Classification (IPC)7: E04B 1/70 |
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Improved device to abstract moisture from a wall or similar
Verbesserte Vorrichtung zum Entfernen von Feuchtigkeit aus einer Wand
Dispositif perfectionné pour enlever l'humidité d'un mur
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Designated Contracting States: |
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AT CH DE ES FR GB IE IT LI LU MC NL PT |
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Priority: |
13.09.1996 BE 9600774
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Date of publication of application: |
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18.03.1998 Bulletin 1998/12 |
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Proprietor: Schrijver Systeem Vochtbestrijding N.V., naamloze vennootschap. |
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2380 Ravels (BE) |
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Inventor: |
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- Schrijver, Hendrikus Bernardus Antonius
2380 Ravels (BE)
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Representative: Donné, Eddy |
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Bureau De Rycker nv.,
Arenbergstraat 13 2000 Antwerpen 2000 Antwerpen (BE) |
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References cited: :
CH-A- 394 564 FR-A- 2 674 553 NL-A- 8 500 177
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DE-B- 1 110 846 NL-A- 8 104 784
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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 wall with a device to abstract moisture from it,
more particulary a cavity wall made of masonry, concrete or other moisture-absorbent
materials.
[0002] A device to abstract moisture from a wall is known from the Dutch patent no. 183.148.
According to this patent, use is made of a device which is secured in a hole that
is realised in a wall that is to be dried or to be kept dry.
[0003] This hole is, for example, obtained by the removal of a brick from the outer wall
and possibly by further cutting out the wall that is to be dried, until the hole shows
a depth of approximately 2/3 of the total thickness of the wall.
[0004] This known device consists, on the one hand, of a frame that is placed in the aforesaid
hole and, on the other hand, of a separate body that extends outside the outer wall
as well as in the hole, and is provided in this hole with a partition, whereby this
body and this partition divide the hole into two chambers, leaving free a passage.
[0005] When the wind flows along the outer wall, a part thereof, . due to the contact with
the aforesaid protruding body, will be forced through the chambers and the air, present
therein, that contains moisture from the wall, will be displaced, which will finally
result in a drying effect.
[0006] A disadvantage of this known device occurs when it is applied in a cavity wall. In
such case namely, the cavity must be bricked up at the spot of the wall of the hole,
in which the device is applied, which is time-consuming and difficult to realise.
[0007] The invention concerns a device which can be applied in a single wall or as well
as in a cavity wall, and which does not show the aforesaid disadvantage when applied
in a cavity wall.
[0008] To this end the invention concerns a wall comprising an inner wall, an outer wall,
and a cavity between them and a device for abstracting moisture, applied in a hole
in the outer wall, said device consisting of air guide means which define an air guide
channel between two openings which extend in different directions outside the wall,
whereby the, device is provided with a duct-shaped element having at least an axial
length of such a dimension that, on the one hand, it forms a sealing wall between
the aforesaid hole and the surrounding cavity and, on the other hand, it extends,
at least over a certain length, in the outer wall.
[0009] A wall with a device to abstract moisture from it comprising a duct-shaped element
is disclosed in FR-A-2.674.553, but the wall is a single wall.
[0010] The known device is provided with a cylindrical porous body with an inclining plate,
that is placed in the aforesaid body. Moisture is evacuated as drops by the inclining
plate towards the outside of the wall. The body is closed by means of a grid having
openings extending in the same direction.
[0011] In order to better show the characteristics of the invention, a preferred embodiment
of a device according to the present invention is described hereafter, as an example,
and without any restrictive character whatsoever, reference being made to the accompanying
drawings, in which:
figure 1 represents a cross-sectional view of a cavity wall with a device according
to invention;
figure 2 represents a cross-sectional view according to line II-II in figure 1.
[0012] As represented in figure 1, the invention concerns a device 1 to abstract moisture
from a wall 2, more particularly a cavity wall.
[0013] As is known, such cavity wall consists of an outer wall 3 and an inner wall 4, between
which a space is present, namely a so-called cavity 5. This cavity 5 can, either as
represented on the left-hand part of figure 1, be left free so that an air cavity
is created, or can, as represented on the right-hand part of figure 1, be completely
or partly filled with insulating material 6 or similar.
[0014] The device 1 according to the invention consists of air guide means 7 which can be
applied in a hole 8 in the wall 2 and which define an air guide channel 9 between
two openings 10-11 which extend in different directions outside the wall 2, more particularly
outside the outer side of the wall 2. Hereto, the air guide means 7 are realised in
such a way that the air that flows through the air guide channel 9, can directly or
indirectly carry off moisture originating from the wall 2.
[0015] The particularity of the present invention lies in the fact that the device 1 is
provided with means 13 which form a cover between the air guide channel 9 and the
surrounding cavity 5.
[0016] As represented in figure 1 these means 13 preferably consist of a duct-shaped element
14 which forms at least a sealing wall between the concerned hole 8 and the surrounding
cavity 5. More particularly, it is preferred that this duct-shaped element 14 shows
such an axial length L1, that, during its application, on the one hand a sealing wall
is formed between the hole 8 and the cavity 5 and, on the other hand, the element
14, extends, at least over a determined length L, in the outer wall 3, as a result
of which it is kept in the hole 8.
[0017] The device 1, and more particularly the duct-shaped element 14, is preferably open
at its head extremity which is situated at the furthermost point of the outer side
12, in such a way that the inner wall 4 limits the air guide channel 9 with one side
15.
[0018] The aforesaid cover, and more particularly the duct-shaped element 14, preferably
forms a loose part, in other words, a part which stands loose in relation to the aforesaid
air guide means 7.
[0019] The means 13, and more particularly the duct-shaped element 14, respectively, is
preferably formed by a porous, moisture-permeable material, which fully or considerably
prevents the flow of the air.
[0020] Hereto it is particularly preferred that use is made of ceramics, such as pottery
material. These means 13 can also consist of a cover that is made of the same material
as the one that is used to manufacture bricks.
[0021] The device 1, and thus also the duct-shaped element 14, show, in a vertical cross-section,
parallel to the wall 2, preferably and mainly a rectangular shape.
[0022] As represented in the figures 1 and 2, the air guide means 7 mainly consist of a
vertically separating wall 16, preferably extending over the full or nearly full height
of the hole 8, the duct-shaped element 14, respectively, which divides the hole 8
in two adjacent chambers 17-18, whereby, at the back, a passage 19 is left between
the two chambers.
[0023] In the represented example, the separating wall 16 is partly formed of a body 20
that is clock-shaped, in a horizontal cross-section, and that is elongated with a
plate-shaped partition 21.
[0024] The separating wall 16 is secured in a rectangular frame 22.
[0025] The installation of the device 1 is as follows.
[0026] Firstly, a hole 8 is realised, by making an opening into the outer wall 3. Subsequently,
the duct-shaped element 14 is applied therein. When it does not exactly fits the circumference,
the gap, which then occurs, between this element 14 and the outer wall 3, can be filled
up with for example mortar.
[0027] Subsequently, the frame 22 with the separating wall 16, is then secured in the hole
8, for example, also by means of mortar 23, cement or similar.
[0028] The operation of the device is based on the fact that, when an air flow F1 is created
along the wall 2, for example due to the wind, also an air flow F2 is created through
the air guide channel 9, as a result of which a drying effect is obtained. Indeed,
the moisture from the wall 2, saturates the air in the hole 8, and this humid air
is driven outside by the air flow F2.
[0029] It is hereby observed that, in such a manner, moisture from the outer wall 3, the
inner wall 4 as well as from the cavity 5, can be carried away.
[0030] According to a variant, these means 13, and more particularly the duct-shaped element
14, can be realised undivided with the remainder of the device or can be connected
herewith, for example, by means of ribs, which are not represented, between the frame
22 and the element 14.
[0031] These means can also be manufactured from plastic material or another material, that
is provided with the required openings and/or perforations, in such a way that the
moisture can be abstracted from the surrounding parts of the wall 2, and also in such
a way that the air flow F2 is not disturbed by the presence of the cavity 5.
[0032] The present invention is in no way limited to the embodiment described above and
represented in the drawings, but such improved device to abstract moisture from a
wall can be realised in different shapes and dimensions, without leaving the scope
of the invention as defined in the Claims.
1. Wall (2) comprising an inner wall (4), an outer Wall (3), and a cavity (5) between
them and a device (1) for abstracting moisture, applied in a hole (8) in the outer
wall (3), said device (1) consisting of air guide means (7) which define an air guide
channel (9) between two openings (10-11), which extend in different directions outside
the wall (2), characterised in that the device (1) is provided with a duct-shaped element (14) having at least an axial
length (L1) of such a dimension that, on the one hand, it forms a sealing wall between
the aforesaid hole (8) and the surrounding cavity (5) and, on the other hand, it extends,
at least over a certain length (L), in the outer wall (3).
2. Wall according to claim 1, characterized in that the duct-shaped element (14), consists of a porous, moisture-permeable material.
3. Wall according to claim 2, characterized in that the duct-shaped element (14) mainly consists of ceramics.
4. Wall according to anyone of the preceding claims, characterized in that the device is open at its head extremity, in such a way that, during its application
in a cavity wall, the inner wall (4) limits the air guide channel (9).
5. Wall according to anyone of the preceding claims, characterized in that the duct-shaped element (14) forms a loose part in relation to the air guide means
(7).
6. Wall according to anyone of the preceding claims, characterized in that the device has, in a vertical cross-section, parallel to the wall (2), just like
the duct-shaped element (14), a mainly rectangular shape.
7. Wall according to anyone of the preceding claims, characterized in that the air guide means (7) comprises a vertically separating wall (16), preferably extending
over the full or nearly full height, which divides the hole (8) in two adjacent chambers
(17-18), whereby, at the back, a passage (19) is left between the two chambers (17-18).
8. Wall according to claim 9, characterized in that the separating wall (16) is, at least partially, formed of a body (20) that, in a
horizontal cross-section, is bell-shaped, whereby this body (20) may be elongated
with a plate-shaped partition (21).
9. Wall according to claim 9 or 10, characterized in that the device contains a frame (22), in which the partition (21) is secured, said frame
being adapted to be fixed in the hole (8).
1. Wand (2), umfassend eine Innenwand (4), eine Außenwand (3) und einen Hohlraum (5)
zwischen ihnen und eine in einer Öffnung (8) in der Außenwand (3) angebrachte Vorrichtung
(1) zum Entfernen von Feuchtigkeit, wobei besagte Vorrichtung (1) aus Luftleitmitteln
(7) besteht, die einen Luftleitkanal (9) zwischen zwei Öffnungen (10-11) definieren,
die sich außerhalb der Wand (2) in unterschiedliche Richtungen erstrecken, dadurch gekennzeichnet, dass die Vorrichtung (1) mit einem kanalförmigen Element (14) versehen ist, das zumindest
eine axiale Länge (L1) mit einer derartigen Abmessung hat, dass es einerseits eine
Dichtungswand zwischen der vorgenannten Öffnung (8) und dem umgebenden Hohlraum (5)
bildet und sich andererseits, zumindest über eine gewisse Länge (L), in der Außenwand
(3) erstreckt.
2. Wand gemäß Anspruch 1, dadurch gekennzeichnet, dass das kanalförmige Element (14) aus einem porösen, feuchtigkeitsdurchlässigen Material
besteht.
3. Wand gemäß Anspruch 2, dadurch gekennzeichnet, dass das kanalförmige Element (14) im Wesentlichen aus Keramikmaterial besteht.
4. Wand gemäß einem der vorgenannten Ansprüche, dadurch gekennzeichnet, dass die Vorrichtung an ihrem Kopfende offen ist, derart, dass während ihres Anbringens
in einer Hohlraumwand die Innenwand (4) den Luftleitkanal (9) begrenzt.
5. Wand gemäß einem der vorgenannten Ansprüche, dadurch gekennzeichnet, dass das kanalförmige Element (14) in Bezug zu den Luftleitmitteln (7) ein loses Teil
bildet.
6. Wand gemäß einem der vorgenannten Ansprüche, dadurch gekennzeichnet, dass die Vorrichtung, in einem vertikalen Querschnitt, parallel zur Wand (2), genau wie
das kanalförmige Element (14) eine im Wesentlichen rechteckige Form hat.
7. Wand gemäß einem der vorgenannten Ansprüche, dadurch gekennzeichnet, dass die Luftleitmittel (7) eine vertikale Trennwand (16) umfassen, die sich vorzugsweise
über die gesamte oder nahezu gesamte Höhe erstrecken, die die Öffnung (8) in zwei
benachbarte Kammern (17-18) teilt, wobei an der Rückseite ein Durchgang (19) zwischen
den zwei Kammern (17-18) belassen wird.
8. Wand gemäß Anspruch 9, dadurch gekennzeichnet, dass die Trennwand (16) zumindest teilweise von einem Körper (20) gebildet wird, der,
in einem horizontalen Querschnitt, glockenförmig ist, wobei dieser Körper (20) durch
eine plattenförmige Trennwand (21) verlängert sein kann.
9. Wand gemäß Anspruch 9 oder 10, dadurch gekennzeichnet, dass die Vorrichtung einen Rahmen (22) umfasst, worin die Trennwand (21) befestigt ist,
wobei besagter Rahmen zur Befestigung in der Öffnung (8) angepasst ist.
1. Mur (2) comprenant un mur interne (4), un mur externe (3) et une cavité (5) entre
eux, ainsi qu'un dispositif (1) pour extraire l'humidité, appliqué dans un trou (8)
pratiqué dans le mur externe (3), ledit dispositif (1) étant constitué d'un moyen
de guide pour l'air (7) qui définit un canal de guidage pour l'air (9) entre deux
ouvertures (10 - 11) qui s'étendent dans des directions différentes à l'extérieur
du mur (2), caractérisé en ce que le dispositif (-1)- est muni d'un élément en forme de conduit (14) comportant au
moins une longueur axiale (L1) dont la dimension est telle que, d'une part, il forme
un mur d'étanchéisation entre le trou susmentionné (8) et la cavité environnante (5)
et, d'autre part, il s'étend au moins sur une certaine longueur (L), dans le mur externe
(3).
2. Mur selon la revendication 1, caractérisé en ce que l'élément (14) en forme de conduit est constitué d'une matière poreuse perméable
à l'humidité.
3. Mur selon la revendication 2, caractérisé en ce que l'élément (14) en forme de conduit est constitué principalement de céramique.
4. Mur selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif est ouvert à son extrémité de tête de telle sorte qu'au cours de son
application dans un mur creux, le mur interne (4) limite le canal (9) de guidage pour
l'air.
5. Mur selon l'une quelconque des revendications précédentes, caractérisé en ce que l'élément (14) en forme de conduit forme une partie détachée par rapport au moyen
de guidage pour l'air (7).
6. Mur selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif possède, en section transversale verticale, parallèlement au mur (2),
exactement de la même manière que l'élément (14) en forme de conduit, une configuration
principalement rectangulaire.
7. Mur selon l'une quelconque des revendications précédentes, caractérisé en ce que le moyen de guidage pour l'air (7) comprend une paroi de séparation verticale (16),
s'étendant de préférence sur toute la hauteur ou pratiquement toute la hauteur, qui
subdivise le trou (8) en deux chambres adjacentes (17 - 18), par lequel, à l'arrière,
un passage (19) subsiste entre les deux chambres (17 - 18).
8. Mur selon la revendication 7, caractérisé en ce que la paroi de séparation (16) est, au moins en partie, formée par un corps (20) qui,
en section transversale horizontale, possède la configuration d'une cloche, par lequel
ce corps (20) peut être prolongé avec une paroi de séparation (21) en forme de plaque.
9. Mur selon la revendication 7 ou 8, caractérisé en ce que le dispositif contient un cadre (22) dans lequel est fixée la paroi de séparation
(21), ledit cadre étant conçu pour venir se fixer dans le trou (8).