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EP 2 511 416 B1 |
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EUROPEAN PATENT SPECIFICATION |
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Mention of the grant of the patent: |
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19.03.2014 Bulletin 2014/12 |
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Date of filing: 14.04.2011 |
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International Patent Classification (IPC):
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Vapour suction device for the flatwork ironer
Dampfsaugvorrichtung für Muldenmangel
Dispositif d'aspiration de vapeur pour machine plate à repasser du linge
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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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Date of publication of application: |
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17.10.2012 Bulletin 2012/42 |
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Proprietor: Primus CE, s.r.o. |
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742 58 Pribor (CZ) |
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Inventors: |
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- Odersky, Michal
74221 Koprivnice (CZ)
- Glac, Antonin
73701 Karvina (CZ)
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Representative: Malusek, Jiri |
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Kania, Sedlak, Smola
Mendlovo namesti 1 a 603 00 Brno 603 00 Brno (CZ) |
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References cited: :
ES-A2- 2 041 564 US-A- 3 667 143
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JP-A- 7 328 294
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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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Bakground of the invention
[0001] The invention concerns the vapour suction device for the flatwork ironer.
State of the art
[0002] Plenty of vapour, which is generated during ironing inside of a flatwork ironer demands
to be continuously and sufficiently sucked. From the state of the art is known the
solution, where a dense vaned fan is placed inside one of the side bearing columns
of the flatwork ironer.
[0003] Such suction method is described in
ES 2041564. Hot air is sucked from an area above an ironing roller by two longitudinal suction
tubes and afterwards it is led into the space inside of columns on the sides of the
flatwork ironer. Afterwards the hot air is discharged from the buttom of that space
into a exhaust chimney. Said system has many disadvantages. Due to the side suction
of the vapour from the longitudinal suction tubes, there is no technological possibility
to achive efficient continuous suction of the vapour along the whole lenght of the
flatwork ironer. Another problem arises due to the vertical placing of the fan inside
the columns. Arrangement of the fan inside the column demands its small size and so
to keep intense suction performance it is necessary to instal a radial fan with forwards
bent vanes. Densely arranged vanes are lower effective and louder. Such fan to be
choked by small fibrous particles, which are emitted both from ironed clothes and
from feeding strips during ironing. The large number of particles choke the densely
vaned fan, which leads to the reduction of its effectivity. Because of that it is
necessary to supply the suction system with filtres, which have to be however periodically
cleaned. This solution gives additional requirements for the operator and it increases
demands for the maintenance.
[0004] In
JP 7328294 a method of vapour suction from the inner area of the flatwork ironer is presented,
which is performed by two four-vanes fans, which are placed vertically at the bottom
of the front wall of the machine. The disadvantage of the solution is the lack of
direct extraction of the vapour from the area above the ironing cylinders, where the
vapour concentration is the greatest. Another disadvantage is blowing of the hot air
directly onto the operator's legs.
[0005] In
ES 8702963 the flatwork ironer provided by vertical fans at the rear side of the machine is
presented. Even here, however, the sufficiently intensive and uniform suction of the
vapour from the area above the ironing cylinders is missing. The lack of it is compensated
by higher performance of the fans.
[0006] The aim of the invention is to disclose the vapour suction device for the flatwork
ironer, which provides sufficiently intensive and uniform suction and simultaneously
limits the complexity of the suction equipment.
Feature of the invention
[0007] The above mentioned disadvantages are considerably eliminated by use of the vapour
suction device for the flatwork ironer comprising a suction chamber provided by neighbouring
suction openings placed in the line on the chamfering bottom side of the longitudinal
suction chamber and coprising a fan, where it further consists of the streamleading
web, the web is connected by its upper opening to the bottom opening of the suction
chamber and the web is connected by its bottom opening to the guiding cover, whereas
the guiding cover rests on the rear lower hollow longitudinal crossbar and closely
overlaps the opened upper side of the fan box with fan opening, in which the fan with
vertikal axe of its rotation is placed, whereas rear lower longitudinal crossbar is
provided by a chimney outlet.
[0008] In an advantageous embodiment the suction openings are bigger on the side parts of
the longitudinal suction chamber than in the middle of it.
[0009] In another advantageous embodiment the outlet in the rear lower longitudinal crossbar
is provided as the side outlet.
[0010] In another advantageous embodiment the outlet in the rear lower longitudinal crossbar
is provided as the rear outlet.
[0011] In another advantageous embodiment the guiding cover and the streamleading web are
situated in the middle of the length of the flatwork ironer.
Description of the drawings
[0012] The invention will be further explained by using the drawings, in which Fig. 1 presents
the view of the vapour suction device for the flatwork ironer according to the invention,
which is placed in the frame of the flatwork ironer shown there in phantom, Fig. 2
presents the device according to the invention in the general detail, Fig. 3 presents
the front view of the fan box with the fan and the rear longitudinal crossbar, Fig.
4 presents the rear view of the fan box with the fan and the rear longitudinal crossbar
provided by side outlet and Fig. 5 presents the rear view of the fan box with the
fan and the rear longitudinal crossbar provided by rear outlet.
Preferred embodiments of the invention
[0013] In Fig. 1 a vapour suction device 1 for the flatwork ironer 2 according to the invention
is presented, which is placed in the middle of a flatwork ironer 2, shown in phantom,
between the side columns 3 and 4. At the bottom of the flatwork ironer 2 are shown
the connecting elements of the whole structure, namely the lower longitudinal front
crossbar 5 and the lower longitudinal rear crossbar 6. Among them is placed the fan
box 7 with an fan 8.
[0014] In Fig. 2 the detail of the vapour suction device 1 is presented, which comprising
a longitudinal suction chamber 9 provided with longitudinal openings 10. Into the
longitudinal suction chamber 9 a streamleading web 12 is connected by its upper opening
11 and by bottom opening 13 the streamleading web 12 is connected with a guide cover
14. The guide cover 14 rests on the rear longitudinal crossbar 6 and closely overlaps
the upper side of the fan box 7 with the fan opening 15.
[0015] The fan box 7 with the fan 8 is connected to the lower rear longitudinal crossbar
6, which connects the side columns 3, 4 of the flatwork ironer 2, namely in the middle
of its length. This is shown in Fig. 3. The streamleading web 12 is rectangular, but
it is possible to imagine a different shape. The streamleading web 12 together with
the guide cover 14 forms the L-shape.
[0016] The longitudinal suction chamber 9 is provided by suction openings 10 placed in the
line on the chamfering bottom side of the longitudinal suction chamber 9. The openings
10 are bigger on the side parts of the longitudinal suction chamber 9 than in the
middle of it, to improve the quality of the uniform intensity of suction. Suction
which is indicated by an arrow 17 is uniform along the whole length of the longitudinal
suction chamber 9, because less suction on the side parts of the longitudinal suction
chamber 9 is compensated by larger size of the openings 10. Conversely the suction
intensity of the openings 10 placed in the middle part of the longitudinal suction
chamber 9 is limited there by smaller size of the openings 10.
[0017] The longitudinal suction chamber 9 is intended not just to suck the vapour, but also
to form the upper crossbar of the flatwork ironer 2.
[0018] The sucked vapour is pulled due to the fan 8 into the rear lower longitudinal crossbar
6 through the inlet opening 18 in its wall. One wall of the fan box 7 is open and
faced to the rear lower longitudinal crossbar 6 and follows up with the opening 18
provided on the vertical side of the rear longitudinal crossbar 6, which is orientated
inside the flatwork ironer 2. The lower rear longitudinal crossbar 6 is hollow. The
inlet opening 18 through the vapour lefts the fan 8 is good to see in Fig. 5
[0019] In Fig. 3 the direction of the sucked vapour passing through the streamleading web
12 and the guide cover 14 and through the opening 15 to the fan 8 is indicated by
an arrow 19. The fan 8 is partially shown in Fig. 4 and 5.
[0020] The rear lower longitudinal crossbar 6 is provided by two outlets 20, 21 intended
to be connected an unshown chimney. Fig. 4 presents the embodiment provided with side
outlet 20 and Fig. 5 presents the embodiment provided with rear outlet 21, which is
placed across the inlet 18. The outlet 20, 21 which is not used is covered by cover
22.
[0021] Moreover, in the rear lower longitudinal crossbar 6 is placed a guide element, which
is made by e.g. metal plate. It is not shown in the pictures. The guide element improves
guiding of the exhausted vapour to the outlet 20 or to the outlet 21 according to
that, which outlet 20, 21 is through and which one is covered by cover 22.
[0022] Above described embodiment of the vapour suction device 1 for the flatwork ironer
2 allows to use the fan 8 with backwards bent vanes, which has larger diameter and
lower number of the big aerodinamicaly shaped vanes with big distance between the
vanes, which is low-demanding for its maintenance in a comparison to the prior art,
due to absence of the filters as well as it has a positive influence on effectivity
and loudness.
[0023] Another advantage is the ability to offer to customers two possibilities of exhaust
chimney connection, which makes the vapour suction device 1 more variable and user-friendly.
[0024] In the case of using of the vapour suction device for the flatwork ironer with gas
heating, an outlet of burnt gas from the combustion chamber of the gas heating is
led into the guide cover 14 so that the burnt gas is led horizontally and simultaneously
tangential to the external diameter of the fan 8 according to the turning direction
of the fan 8 to the fan box 7. The mixture of the burnt gas and vapour is created
before the inlet into the fan 8. Afterwards that mixture is blown out through the
exhaust chimney. The tangential inlet of the heat burnt gas simultaneous protects
overheating of the rotor of the drive of the fan 8.
1. Vapour suction device (1) for a flatwork ironer comprising a suction chamber (9) provided
by neighbouring suction openings (10) placed in the line on the chamfering bottom
side of the longitudinal suction chamber and comprising a fan (8) characterized in that, it further consists of a streamleading web (12), connected by its upper opening
(11) to the bottom opening of the suction chamber (9) and its bottom opening (13)
to a guiding cover (14), whereas said guiding cover (14) rests on a rear lower hollow
longitudinal crossbar (6) and closely overlaps the opened upper side of a fan box
(7) with a fan opening (15), in which the fan (8) with a vertikal axe of its rotation
is placed, whereas said rear lower longitudinal crossbar (6) is provided with a chimney
outlet.
2. Vapour suction device according to the claim 1, characterized in that, said suction openings (10) are bigger on the side parts of the longitudinal suction
chamber (9) than in the middle of it.
3. Vapour suction device according to the claim 1, characterized in that, the outlet in the rear lower longitudinal crossbar (6) is provided as a side outlet
(20).
4. Vapour suction device according to the claim 1, characterized in that, the outlet in the rear lower longitudinal crossbar (6) is provided as a rear outlet
(21).
5. Flatwork ironer (2) having a vapour suction device according to the claim 1, characterized in that, the guiding cover (14) and the streamleading web (12) are situated in the middle
of the length of the flatwork ironer (2).
1. Dampfsaugvorrichtung für Muldenmangel bestehend aus einer Saugrohr, die auf ihrer
schrägen unteren Seite mit nebeneinander in einer Linie angeordneten Saugöffnungen
versehen ist und aus einem Ventilator, dadurch gekennzeichnet, daß sie weiter aus einer Ableitungsstehrohr (12) besteht, die über eine obere Öffnung
(11) zu einer unteren Öffnung der Saugrohr (9) angeschlossen ist, und weiter ist sie
mit ihrer unteren Öffnung (13) mit einem Deckel (14) verbunden, wobei der Deckel (14)
von oben auf einen hinteren horizontalen Unterträger (6) anliegt und dichtend die
offene Seite eines Ventilatorsboxes (7) mit einer Ventilatorsöffnung (15) überdeckt,
wobei in dem Ventilatorsbox (7) ein Ventilator (8) mit einer vertikalen Rotationsaxis
gelagert ist, wobei der hintere horizontale Unterträger (6) mit einem Kaminausgang
versehen ist.
2. Dampfsaugvorrichtung für Muldenmangel nach dem Anspruch 1, dadurch gekennzeichnet, daß die Saugöffnungen (10) auf den Rändern der horizontalen Saugrohr (9) größer als in
ihrer Mitte sind.
3. Dampfsaugvorrichtung für Muldenmangel nach dem Anspruch 1, dadurch gekennzeichnet, daß der Ausgang im hinteren horizontalen Unterträger (6) als Seitenaugang (20) durchgeführt
ist.
4. Dampfsaugvorrichtung für Muldenmangel nach dem Anspruch 1, dadurch gekennzeichnet, daß der Ausgang im hinteren horizontalen Unterträger (6) als Hinteraugang (20) durchgeführt
ist.
5. Dampfsaugvorrichtung für Muldenmangel nach dem Anspruch 1, dadurch gekennzeichnet, daß die Dampfsaugvorrichtung (1) in der Mittte der Länge des Muldenmangel angeordnet
ist.
1. Une dispositif d'aspiration de vapeur (1) aspirant du milieu de la machine plate à
repasser du linge, consiste d'une chambre d'aspiration (9) fourni par des ouvertures
d'aspiration adjacents (10) placés dans la ligne sur le côté inférieur chanfreiné
de la chambre d'aspiration longitudinale et comprenant d'un ventilateur caractérisé en ce que, il consiste en outre de la bande de guidage (12), la bande (12) est reliée par son
ouverture supérieure (11) avec l'ouverture inférieure de la chambre d'aspiration (9)
et la bande (12) est reliée par son ouverture inférieure (13) avec le couvercle de
guidage (14), tandis que le couvercle de guidage (14) repose sur la colonne longitudinale
arrière inférieure creuse (6) et recouvre près du côté supérieur ouvert de la boîte
de ventilateur (7) avec l'ouverture du ventilateur (15), dans lequel le ventilateur
(8) avec l'axe vertical de sa rotation est placé, alors que la colonne arrière longitudinal
inférieur (6) est fourni par une sortie de cheminée.
2. Une dispositif d'aspiration de vapeur selon la revendication 1, caractérisé en ce que, les ouvertures d'aspiration (10) sont plus grandes sur les parties latérales de
la chambre d'aspiration longitudinale (9) que dans le milieu de celui-ci.
3. Une dispositif d'aspiration de vapeur selon la revendication 1, caractérisé en ce que, la sortie de la colonne arrière inférieure longitudinale (6) est prévu comme la
sortie latérale (20).
4. Une dispositif d'aspiration de vapeur selon la revendication 1, caractérisé en ce que, la sortie de la colonne arrière inférieure longitudinale (6) est prévu comme la
sortie arrière (21).
5. Une dispositif d'aspiration de vapeur selon la revendication 1, caractérisé en ce que, le dispositif d'aspiration de vapeur (1) est placé au milieu de la longueur de la
machine plate à repasser du linge (2).
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