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EP 3 816 337 B1 |
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EUROPEAN PATENT SPECIFICATION |
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Mention of the grant of the patent: |
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03.01.2024 Bulletin 2024/01 |
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Date of filing: 30.09.2020 |
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International Patent Classification (IPC):
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Cooperative Patent Classification (CPC): |
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D06F 58/22 |
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A DRYER COMPRISING A SELF-CLEANING FILTER
TROCKNER MIT EINEM SELBSTREINIGENDEN FILTER
SÉCHOIR COMPRENANT UN FILTRE AUTONETTOYANT
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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 |
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Priority: |
31.10.2019 TR 201916777
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Date of publication of application: |
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05.05.2021 Bulletin 2021/18 |
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Proprietor: Arçelik Anonim Sirketi |
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34445 Istanbul (TR) |
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Inventors: |
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- TEKES, Yunus Ekrem
34445 Istanbul (TR)
- SAR, Can
34950 Istanbul (TR)
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References cited: :
EP-A1- 2 749 689 WO-A2-2010/071355
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EP-A1- 3 392 398
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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 dryer comprising a self-cleaning filter.
[0002] The use of mechanical scrapers for automatically cleaning the filters used in dryers
is known in the art. The scraper collects fibers accumulated on the filter by contacting
the filter. Various structural modifications has to be made in the dryer and the filter
in order to allow the usage of such filters. In the dryers having state of the art
scrapers, the filter has only one filtering surface and is positioned in different
angles/ways in order to allow the operation of the scraper. Some of the reasons of
not using the filters available in the state of the art with scrapers are the sealing
problem caused by the scraper in the circulation of the drying air, the difficulty
of finding a space for the scraper in the current structure and finding a place to
transfer the fibers scraped from the filter. A lot of parts are needed for the use
of the scraper and this creates problems in sealing. The transfer/collection of the
removed fibers causes arrangement problems in the state of the art dryers. In order
to make room for the scraper, the size of the filter must be decreased, thus compromising
the effectiveness of the filter.
[0003] In the state of the art United States Patent Application No.
US20070256317, a dryer is disclosed, comprising a scraper which scrapes the filter retaining the
fibers.
[0004] In the state of the art European Patent Application No.
EP2376702, a dryer is disclosed, wherein the filter is cleaned by means of a scraper in the
form of a brush. The same invention is also disclosed in the International Patent
Application No.
WO2010071355.
[0005] In the state of the art European Patent Application No.
EP2126187, a dryer is disclosed, wherein the position of the scraper on the filter is detected.
[0006] In the state of the art European Patent Application No.
EP3392398, a laundry dryer is disclosed, comprising a fluff trap with a screen filter wall
and a cleaning system brushes the filter wall.
[0007] The aim of the present invention is the realization of a dryer wherein the filter
retaining the fibers is automatically cleaned.
[0008] The dryer realized in order to attain the aim of the present invention, explicated
in the first claim and the respective claims thereof, comprises a scraper which is
disposed onto the filter known as V-type or a cartridge-type filter and gear channels
which enable the scraper to be moved along the direction of the air flow. The gear
channels match with a gear which is provided in the housing wherein the filter is
disposed. The scraper bears against both filtering surfaces in the filter. As the
gear rotates, the gear channel and hence the scraper move and the fibers accumulated
on both surfaces of the filter are enabled to be scraped. By means of the present
invention, the inner side of the filter is also enabled to be scraped in the state
of the art filters.
[0009] In different embodiments of the present invention, locking members and connection
members are used to enable the scraper to be attached to the V-type filter and to
be moved smoothly. When the scraper is needed to be moved, said members are used to
enable the scraper to be moved in the desired manner while preventing the movement
of the filter. Thus, the mechanical scraping process can also be realized in the cartridge-type
filters.
[0010] In another embodiment of the present invention, the fibers scraped by the scraper
are collected in a bag attached to the underside of the filter. Thus, the user is
prevented from touching the fibers and the need for cleaning the collected fibers
after each process is eliminated. Furthermore, by collecting the fibers, the user
is prevented from being subject to unpleasant appearances. Possible health issues
are also eliminated by preventing the user from breathing fibers while cleaning the
fibers.
[0011] In different embodiments of the present invention, the scraper is produced with a
perforated structure in order to prevent the same from adversely affecting the drying
process. In different embodiments of the present invention, the scraper can be produced
from a flexible material. Thus, a scraper which can be positioned on the inner side
of the two filtering surfaces is enabled to be used.
[0012] In different embodiments of the present invention, the scraper is operated when the
filter is full or when the drying process is completed. Thus, the filter is prevented
from being clogged and automatically cleaned.
[0013] By means of the present invention, the filter is enabled to be cleaned and the scraper
is enabled to be taken out of the dryer together with the filter, thus providing ease
of maintenance and cleaning. Consequently, mechanical scraping can be performed in
the state of the art V-type filters and the maintenance and the cleaning of the scraper
can be performed easily when necessary.
[0014] The dryer realized in order to attain the aim of the present invention is illustrated
in the attached figures, where:
Figure 1 - is the front partial view of a dryer.
Figure 2 - is the perspective view of a filter.
Figure 3 - is the view of a filter from another angle.
[0015] The elements illustrated in the figures are numbered as follows:
- 1. Dryer
- 2. Body
- 3. Housing
- 4. Filter
- 5. Scraper
- 6. Gear channel
- 7. Gear
- 8. Motor
- 9. Slot
- 10. Locking member
- 11. Connection member
- 12. Magnetic member
- 13. Hole
- 14. Bag
- 15. Fan
[0016] The dryer (1) comprises a body (2); a housing (3) which is disposed on the body (2);
a filter (4) which is placed into the housing (3) and which retains the fibers generated
during the drying process; and a scraper (5) which scrapes the fibers accumulated
on the filter (4). The filter (4) is placed into the housing (3) provided on the body
(2). The air which is circulated during the drying process passes through the filer
(4) and continues its circulation through the lower part of the housing (3). The fibers
removed from the items which are dried during this process are retained on the filter
(4). The scraper (5) scrapes the fibers accumulated on the filter (4). Thus, the filter
(4) is prevented from getting clogged and adversely affecting the circulation of the
drying air.
[0017] The dryer (1) of the present invention comprises the V-type filter (4); two gear
channels (6), each attached to one of the opposite outer edges of the filter (4) and
which move relative to the filter (4); the scraper (5) which connects the opposite
gear channels (6) and which is provided at the inner side of the filter (4); at least
one gear (7) which is disposed in the housing (3) and which engages with the gear
channel (6); and at least one motor (8) which rotates the gear (7).
[0018] In the dryer (1) of the present invention, the filter (4) has a structure called
V-type or cartridge-type structure, wherein the two filtering surfaces are connected
so as to create a V, and the air to be filtered enters the filter (4) through the
filter (4). Thus, the fibers are accumulated on the inner surfaces of the filter (4).
The gear channel (6) is attached to the outer edges of the filter (4). The gear channel
(6) moves along the edge of the filter (4). The scraper (5) is fixed to the gear channels
(6) provided on the edges of the filter (4) so as to be in the filter (4) and sweep/scrape
both filtering surfaces. Thus, the scraper (5) can move along the direction of the
air flow as the gear channels (6) move. The movement of the gear channel (6) is provided
by means of a gear (7) which is fixed in the housing (3) and the motor (8) which rotates
the gear (7). Since the components which enable the scraper (5) to be moved are positioned
outside the filter (4), the contact of the components which create the movement with
the fibers is prevented, eliminating the risk of adversely affecting the movement.
[0019] When the filter (4) is placed into the housing (3), the gear (7) aligns with the
gear channel (6) and the gear (7) engages with the gear channel (6). When the motor
(8) is rotated, the gear (7) rotates in the gear channel (6) and enables the scraper
(5) to scrape the surface of the filter (4) in the vertical direction. Thus, the fibers
accumulated on the filter (4) are scraped and prevented from adversely affecting the
circulation of the drying air.
[0020] In an embodiment of the present invention, the dryer (1) comprises slots (9) which
are arranged on the outer edges of the filter (4) and the gear channel (6) is placed
into the slot (9). By means of the slots (9) provided on the edges of the filter (4),
the edges of the filter (4) are hollow and thus, the gear channel (6) and the scraper
(5) are enabled to be connected to each other. The gear channels (6) are attached
onto the filter (4) by being inserted into the slots (9).
[0021] In another embodiment of the present invention, the gear channel (6) is T-shaped
so as to surround the slot (9) in an airtight manner. The gear channel (6) is attached
onto the slots (9) preferably by being inserted from the bottom side. The gear channel
(6) is inserted into the slot (9) from the narrow neck section of the T-shape and
the upper section of the T-shape remains in the filter (4), providing sealing.
[0022] In different embodiments of the present invention, the dryer (1) comprises locking
members (10) which prevent the gear channels (6) and the scraper (5) from moving relative
to each other. The gear channels (6) arranged at two sides of the filter (4) is connected
to the scraper (5) which is positioned in the filter (4). The scraper (5) moves together
with the gear channel (6). In order to enable the filter (4) to be properly scraped,
the scraper (5) has to be prevented from making movements like twisting etc. The scraper
(5) and the gear channels (6) have matching locking means (10) which engage with each
other so as to enable the scraper (5) to move linearly together with the gear channels
(6). Thus, the scraper (5) and the gear channels (6) move together.
[0023] In another embodiment of the present invention, the filter (4) comprises connection
members (11) which enable the same to be locked onto the housing (3). When it is desired
to operate the motor (8) and move the scraper (5) to clean the filter (4), the filter
(4) can also move together with the gear channels (6) if the filter (4) is not fixed.
In this embodiment, when the filter (4) is placed into the housing (3), the connection
members (11) fix the filter (4) to the housing (3). Thus, when the motor (8) is operated,
the gear channels (6) move relative to the filter (4) and enable the scraper (5) to
clean the filter (4).
[0024] In another embodiment of the present invention, the dryer (1) comprises magnetic
members (12) which are oppositely positioned on the scraper (5) or the gear channel
(6) and the filter (4) so as to enable the scraper (5) to be held above. When the
filter (4) is detached, the gear channels (6) can move freely on the edges of the
filter (4). This may create problems for the user when the filter (4) is detached.
Thus, the scraper (5) and the gear channels (6) are desired to move when the filter
(4) is in the housing (3) and not to move when the filter (4) is taken out of the
housing (3). In order to provide this, the magnetic members (12) are provided both
on the filter (4) and on the scraper (5) or the gear channels (6). By means of the
magnetic members (12), the scraper (5) is held at the upper section of the filter
(4) and the gear channels (6) hold the filter (4) edges so as almost not to protrude.
When the motor (8) and the gear (7) are rotated, the force exerted enables the scraper
(5) to move downwards on the filter (4).
[0025] In another embodiment of the present invention, the dryer (1) comprises holes (13)
which are provided on the surface of the scraper (5) and which allow the passage of
the drying air. Since filter (4) used in the dryer (1) is a commonly used V-type filter
(4), the scraper (5) must not prevent the passage of the drying air. The holes (13)
are provided on the scraper (5) so as to be parallel with the flow of the drying air
and thus, the V-type filter (4) can be cleaned by the scraper (5) without obstructing
the air flow.
[0026] In another embodiment of the present invention, the filter (5) is produced from an
elastic material. By means of the scraper (5) which is produced from an elastic material,
no pressure is applied onto the surface of the filter (4) and thus, the filter (4)
is prevented from getting damaged while the fibers are swept.
[0027] In another embodiment of the present invention, the dryer (1) comprises a bag (14)
which is attached to the underside of the filter (4) and which is used for collecting
the fibers scraped by the scraper (5). As the scraper (5) is operated, the fibers
removed from the surface of the filter (4) are collected in the bag (14) attached
to the underside of the filter (4). When the bag (14) is full, the filter (4) is removed
and the bag (14) is disposed or replaced after being emptied.
[0028] In another embodiment of the present invention, the dryer (1) comprises two motors
(8) which are oppositely positioned in the housing (3). The two motors (8) oppositely
positioned are used to enable the scraper (5) to be smoothly moved upwards and downwards
perpendicular to the surface of the filter (4). The scraper (5) is enabled to move
always perpendicular to the direction of the air flow by driving the motors (8) in
phase. In a version of this embodiment, the motors (8) can be driven in different
phases relative to each other such that the scraper (5) is slightly twisted and thus,
the filter (4) is enabled to be cleaned more effectively when necessary.
[0029] In another embodiment of the present invention, the dryer (1) comprises a fan (15)
which performs the circulation of air and stops during the operation of the scraper
(5). As the gear channel (6) moves along the edge of the filter (4), the edge of the
filter (4) becomes free and the sealing is disrupted. By stopping the fan (15) during
the operation of the scraper (5), the flow of air is interrupted and the fibers which
flutter freely are prevented from escaping through the edges of the filter (4) and
being dispersed into the dryer (1).
[0030] In another embodiment of the present invention, the scraper (5) is operated whenever
the filter (4) is full. The fullness of the filter (4) can be detected by means of
the state of the art sensors. When the filter (4) is full, the scraper (5) is operated.
[0031] In another embodiment of the present invention, the scraper (5) is operated at the
end of the drying process. Differently from the above-disclosed embodiment, in the
dryers (1) which do not comprise sensors for detecting the fullness of the filter
(4), the scraper (5) is operated after each drying process and the drying can be performed
without allowing the filter (4) to get clogged.
[0032] In the dryer (1) of the present invention, the V-type filters (4) which are widely
used are enabled to be automatically cleaned by means of the scraper (5). By means
of the structures of the scraper (5) and the gear channels (6) to which the same is
connected, the V-type filter (4) is sealed and the air flow is not obstructed when
the scraper (5) is not in use. By means of the present invention, the scraper (5)
can be used without changing the structure of the filter (4) and it is sufficient
to attach gear channels (6) onto the edges of the V-type filter (4).
1. - A dryer (1) comprising a body (2); a housing (3) which is disposed on the body (2); a filter (4) which is
placed into the housing (3) and which retains the fibers generated during a the drying
process; and a scraper (5) which scrapes the fibers accumulated on the filter (4),
characterized in that the filter (4) is a V-type filter wherein two filtering surfaces are connected so
as to create a V, such that the scraper (5) bears against both filtering surfaces
in the filter (4); two gear channels (6), each attached to one of the opposite outer
edges of the filter (4) and which move relative to the filter (4); the scraper (5)
which connects opposite gear channels (6) and which is provided at the inner side
of the filter (4); at least one gear (7) which is disposed in the housing (3) and
which engages with one of the gear channels (6); and at least one motor (8) which
rotates the gear (7).
2. - A dryer (1) as in Claim 1, characterized by slots (9) which are arranged on outer edges of the filter (4) and the gear channels
(6) which are placed into the slots (9).
3. - A dryer (1) as in Claim 2, characterized by the gear channels (6) which are T-shaped so as to surround the slots (9) in an airtight
manner.
4. - A dryer (1) as in any one of the above claims, characterized by locking members (10) which prevent the gear channels (6) and the scraper (5) from
moving relative to each other.
5. - A dryer (1) as in any one of the above claims, characterized by the filter (4) having connection members (11) which enable the same to be locked
onto the housing (3).
6. - A dryer (1) as in any one of the above claims, characterized by magnetic members (12) which are oppositely positioned on the scraper (5) or the gear
channel (6) and the filter (4) so as to enable the scraper (5) to be held at upper
section of the filter (4) such that the scraper (5) and the gear channels (6) do not
move when the filter (4) is taken out of the housing (3).
7. - A dryer (1) as in any one of the above claims, characterized by holes (13) which are provided on the surface of the scraper (5) and which allow the
passage of the drying air.
8. - A dryer (1) as in any one of the above claims, characterized by the scraper (5) which is produced from an elastic material.
9. - A dryer (1) as in any one of the above claims, characterized by a bag (14) which is attached to the underside of the filter (4) and which is used
for collecting the fibers scraped by the scraper (5).
10. - A dryer (1) as in any one of the above claims, characterized by two motors (8) which are oppositely placed in the housing (3) for enabling the scraper
(5) to be smoothly moved upwards and downwards perpendicular to the surface of the
filter (4).
11. - A dryer (1) as in any one of the above claims, characterized by a fan (15) which performs the circulation of air and stops during the operation of
the scraper (5).
12. - A dryer (1) as in any one of the above claims, characterized by a sensor suitable for detecting the fullness of the filter (4) and the scraper (5)
which is operated whenever the filter (4) is full.
13. - A dryer (1) as in any one of the above claims, characterized by the scraper (5) which is operated at the end of the drying process.
1. - Ein Trockner (1) umfasst einen Körper (2); ein Gehäuse (3), das am Körper (2) angeordnet ist; einen Filter
(4), der in das Gehäuse (3) eingesetzt ist und die bei einem Trocknungsprozess entstehenden
Fasern zurückhält; und einen Schaber (5), der die auf dem Filter (4) angesammelten
Fasern abstreift, gekennzeichnet ist es dadurch, dass der Filter (4) ein V-Filter ist, bei dem zwei Filterflächen so verbunden sind,
dass ein V entsteht, so dass der Schaber (5) an beiden Filterflächen im Filter (4)
anliegt; zwei Getriebekanäle (6), die jeweils an einer der gegenüberliegenden Außenkanten
des Filters (4) befestigt sind und sich relativ zum Filter (4) bewegen, den Schaber
(5), der gegenüberliegende Getriebekanäle (6) verbindet und an der Innenseite des
Filters (4) vorgesehen ist; mindestens ein Zahnrad (7), das im Gehäuse (3) angeordnet
ist und mit einem der Zahnradkanäle (6) in Eingriff steht; und mindestens einen Motor
(8), der das Zahnrad (7) dreht.
2. - Ein Trockner (1), wie in Anspruch 1 aufgeführt, ist dadurch gekennzeichnet, dass Schlitze (9), die an Außenkanten des Filters (4) angeordnet sind, und die Getriebekanäle
(6), die in den Schlitzen (9) platziert sind.
3. - Ein Trockner (1), wie in Anspruch 2 aufgeführt, ist dadurch gekennzeichnet, dass die Getriebekanäle (6) T-förmig ausgebildet sind, um die Schlitze (9) luftdicht zu
umgeben.
4. - Ein Trockner (1), wie in einem der vorherigen Ansprüchen aufgeführt, ist dadurch gekennzeichnet, dass Sperrglieder (10), die die Getriebekanäle (6) und den Schaber (5) an einer Bewegung
relativ zueinander hindern.
5. - Ein Trockner (1), wie in einem der vorherigen Ansprüchen aufgeführt, ist dadurch gekennzeichnet, dass der Filter (4) Verbindungselemente (11) aufweist, die es ermöglichen, ihn am Gehäuse
(3) zu befestigen.
6. - Ein Trockner (1), wie in einem der vorherigen Ansprüchen aufgeführt, ist dadurch gekennzeichnet, dass magnetische Elemente (12), die auf dem Schaber (5) oder dem Getriebekanal (6) und
dem Filter (4) gegenüberliegend positioniert sind, um zu ermöglichen, dass der Schaber
(5) im oberen Bereich des Filters (4) gehalten wird, so dass sich der Schaber (5)
und die Getriebekanäle (6) nicht bewegen, wenn der Filter (4) aus dem Gehäuse (3)
genommen wird.
7. - Ein Trockner (1), wie in einem der vorherigen Ansprüchen aufgeführt, ist dadurch gekennzeichnet, dass Löcher (13) auf der Oberfläche des Schabers (5) vorgesehen sind und den Durchtritt
der Trocknungsluft ermöglichen.
8. - Ein Trockner (1), wie in einem der vorherigen Ansprüchen aufgeführt, ist dadurch gekennzeichnet, dass der Schaber (5) aus einem elastischen Material gefertigt ist.
9. - Ein Trockner (1), wie in einem der vorherigen Ansprüchen aufgeführt, ist dadurch gekennzeichnet, dass ein Beutel (14) an der Unterseite des Filters (4) angebracht ist und zum Auffangen
der vom Abstreifer (5) abgeschabten Fasern dient.
10. - Ein Trockner (1), wie in einem der vorherigen Ansprüchen aufgeführt, ist dadurch gekennzeichnet, dass zwei Motoren (8) gegenüberliegend im Gehäuse (3) angeordnet sind, um eine sanfte
Auf- und Abbewegung des Schabers (5) senkrecht zur Oberfläche des Filters (4) zu ermöglichen.
11. - Ein Trockner (1), wie in einem der vorherigen Ansprüchen aufgeführt, ist dadurch gekennzeichnet, dass ein Ventilator (15) die Luftzirkulation durchführt und während des Betriebs des Schabers
(5) stoppt.
12. - Ein Trockner (1), wie in einem der vorherigen Ansprüchen aufgeführt, ist dadurch gekennzeichnet, dass ein Sensor geeignet ist, die Fülle des Filters (4) zu erfassen und der Schaber (5)
immer dann betätigt wird, wenn der Filter (4) voll ist.
13. - Ein Trockner (1), wie in einem der vorherigen Ansprüchen aufgeführt, ist dadurch gekennzeichnet, dass der Schaber (5) am Ende des Trocknungsvorgangs betätigt wird.
1. - Un séchoir (1) comprenant un corps (2) ; un boîtier (3) disposé sur le corps (2) ; un filtre (4) placé dans
le boîtier (3) et qui retient les fibres générées pendant un processus de séchage
; et un racleur (5) qui racle les fibres accumulées sur le filtre (4), caractérisé en ce que le filtre (4) est un filtre de type V dans lequel deux surfaces filtrantes sont reliées
de manière à créer un V, de sorte que le racleur (5) s'appuie sur les deux surfaces
filtrantes dans le filtre (4) ; deux canaux d'engrenage (6), chacun fixé à l'un des
bords extérieurs opposés du filtre (4) et qui se déplacent par rapport au filtre (4)
; le racleur (5) qui relie les canaux d'engrenage opposés (6) et qui est prévu sur
le côté intérieur du filtre (4) ; au moins un engrenage (7) qui est disposé dans le
boîtier (3) et qui s'engage dans l'un des canaux d'engrenage (6) ; et au moins un
moteur (8) qui fait tourner l'engrenage (7).
2. - Un séchoir (1) selon la déclaration 1, caractérisé par des fentes (9) qui sont disposées sur les bords extérieurs du filtre (4) et des canaux
d'engrenage (6) qui sont placés dans les fentes (9).
3. - Un séchoir (1) selon la déclaration 2, caractérisé par les canaux d'engrenage (6) qui sont en forme de T de manière à entourer les fentes
(9) de manière étanche.
4. - Un séchoir (1) selon l'une quelconque des déclarations précédentes, caractérisé par des organes de verrouillage (10) qui empêchent les canaux d'engrenage (6) et le racleur
(5) de se déplacer l'un par rapport à l'autre.
5. - Un séchoir (1) selon l'une quelconque des déclarations précédentes, caractérisé par le fait que le filtre (4) comporte des organes de liaison (11) qui permettent de le verrouiller
sur le boîtier (3).
6. - Un séchoir (1) selon l'une quelconque des déclarations précédentes, caractérisé par des organes magnétiques (12) qui sont positionnés en opposition sur le racleur (5)
ou le canal d'engrenage (6) et le filtre (4) de manière à permettre le maintien du
racleur (5) en partie supérieure du filtre (4) de telle sorte que le racleur (5) et
les canaux d'engrenage (6) ne se déplacent pas lorsque le filtre (4) est sorti du
boîtier (3).
7. - Un séchoir (1) selon l'une quelconque des déclarations précédentes, caractérisé par des trous (13) qui sont prévus sur la surface du racleur (5) et qui permettent le
passage de l'air de séchage.
8. - Un séchoir (1) selon l'une quelconque des déclarations précédentes, caractérisé par le racleur (5) qui est fabriqué à partir d'un matériau élastique.
9. - Un séchoir (1) selon l'une quelconque des déclarations précédentes, caractérisé par un sac (14) qui est fixé sur la face inférieure du filtre (4) et qui sert à recueillir
les fibres raclées par le racleur (5).
10. - Un séchoir (1) selon l'une quelconque des déclarations précédentes, caractérisé par deux moteurs (8) placés en opposition dans le boîtier (3) pour permettre au racleur
(5) d'être déplacé en douceur vers le haut et vers le bas, perpendiculairement à la
surface du filtre (4).
11. - Un séchoir (1) selon l'une quelconque des déclarations précédentes, caractérisé par un ventilateur (15) qui effectue la circulation de l'air et s'arrête pendant le fonctionnement
du racleur (5).
12. - Un séchoir (1) selon l'une quelconque des déclarations précédentes, caractérisé par un capteur apte à détecter le remplissage du filtre (4) et le racleur (5) qui est
actionné chaque fois que le filtre (4) est plein.
13. - Un séchoir (1) selon l'une quelconque des déclarations précédentes, caractérisé par le racleur (5) qui est actionné à la fin du processus de séchage.
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