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EP 1 481 612 B1 |
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EUROPEAN PATENT SPECIFICATION |
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Mention of the grant of the patent: |
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04.07.2007 Bulletin 2007/27 |
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Date of filing: 14.05.2004 |
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International Patent Classification (IPC):
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Surface structure for household appliances and refrigeration equipment
Strukturierte Oberfläche für Haushalt- und Kältegeräte
Surface structurée pour appareil électroménager et frigorifique
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Designated Contracting States: |
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AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
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Priority: |
28.05.2003 FI 20030213 U
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Date of publication of application: |
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01.12.2004 Bulletin 2004/49 |
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Proprietor: Helkama Forste Oy |
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30300 Forssa (FI) |
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Inventor: |
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- Parkkinen, Erkki
04600, Mäntsälä (FI)
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Representative: Kaukonen, Juha Veikko |
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Kolster Oy Ab,
Iso Roobertinkatu 23,
P.O. Box 148 00121 Helsinki 00121 Helsinki (FI) |
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References cited: :
FR-A- 1 300 022 US-A- 3 408 127
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FR-A- 2 674 112 US-A- 4 966 424
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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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BACKGROUND OF THE INVENTION
[0001] The present invention relates to a surface structure for household appliances and
refrigeration equipment.
[0002] The colour of household appliances, i.e. washing machines, dishwashers and tumble
driers, and of refrigeration equipment, i.e. refrigerators, freezers and upright freezers,
as well as of different cold stores used in product selling is today typically white,
and specifically the large surfaces of the equipment are typically of one colour.
The colours of handles, different gratings and the like may vary to some extent, although
even these are typically white nowadays.
[0003] Kitchen fittings or different product fittings, such as cold stores or the like,
are typically of one colour, usually white. At some stage, also such kitchen fittings
have been sold whose surfaces were painted with different paints to provide colourful
equipment. Also such solutions have been known where the front surface of a dishwasher
or refrigerator, for example, has been a sheet of a given colour which has then been
fitted by its edges with different angle sections and screws.
[0004] In known solutions, the problem has been that the sales of fittings painted with
given colours from the beginning have not necessarily been expected due to the selection
of colours or another aspect. Further, it has not been possible to change colours
when for example kitchen furnishings or the like fittings have changed. Likewise,
the outer surfaces of product fittings have been designed and painted or otherwise
coated with tapes, for instance, particularly for a given product to be sold, and
when the product or the advertising campaign changes, such refrigeration equipment
must usually be replaced with a new one. It has also been difficult to repair damages
on the fitting surfaces.
[0005] Document
FR-A-1300022 discloses a known refrigerator door.
BRIEF DESCRIPTION OF THE INVENTION
[0006] An object of the present invention is to provide such a surface structure for kitchen
fittings or the like with which it is easy to change the appearance of the fittings
and which is reasonably inexpensive.
[0007] The surface structure according to the invention is characterized in that it comprises
a thin sheet to be mounted upon a door or wall of a household appliance or refrigeration
equipment, the sheet forming a visible surface; and that two opposite edges of the
sheet are bent at both edges at two bending points at a distance from each other substantially
in parallel with each other relative to the sheet, and at the same edge in the same
bending direction in such a way that both edges of the sheet are provided with a groove-like
space, into which the edges of the door or wall of the household appliance or refrigeration
equipment fit when the sheet is mounted in place upon the door or wall of the household
appliance or refrigeration equipment, whereby the edges of the sheet become positioned
in the space behind the edge of the door or wall of the household appliance or refrigeration
equipment and fix the sheet in place.
[0008] An essential idea of the invention is that loose surface structures are manufactured
for a household appliance or refrigeration equipment, which structures can be easily
mounted and detached, thus changing the appearance or colour of the household appliance
or refrigeration equipment. This has been achieved in such a way that a surface that
becomes tightly positioned upon the door or wall of the household appliance or refrigeration
equipment is formed of a thin sheet by bending opposite edges of the sheet, the surface,
when being mounted or detached, yielding in such a way that it can be "clicked" in
place such that the remotest narrow edge parts of the sheet edge become positioned
in the space behind the part to be coated, such as the door or wall, of the household
appliance or refrigeration equipment, locking the sheet firmly in place.
[0009] An essential idea of a preferred embodiment of the invention is that the bends are
made such that the angles formed in the bending are sharper on the side of the door
or wall to be coated than the angle of the door or the wall, whereby this presses
both sheet edges tightly against the door or wall, keeping the sheet firmly in place.
[0010] An advantage of the invention is that when the appearance of the household appliance
or refrigeration equipment is to be changed, the sheet forming its surface structure
can be removed and a new one supplied to replace it. Likewise, if there has earlier
been no loose sheet that would form a surface structure, such a sheet can be mounted.
BRIEF DESCRIPTION OF THE FIGURES
[0011] The invention will be explained in greater detail with reference to the attached
drawings, of which
Figure 1 shows schematically a household appliance and/or refrigeration equipment;
Figures 2a to 2c show schematically a sheet forming a surface structure and bent in
accordance with the invention, as well as details thereof; and
Figure 3 shows schematically a sheet mounted in place.
[0012] For the sake of clarity, the invention is shown simplified in the figures and similar
parts have been denoted with the same reference numerals.
DETAILED DESCRIPTION OF THE INVENTION
[0013] Figure 1 shows schematically a perspective view of a cold store that represents,
by way of example, a household appliance and/or refrigeration equipment in which the
surface structure according to the invention can be implemented. In the case of Figure
1, the surfaces of doors 2 and 3 and side walls 4 and 5 of a cold store 1 can be covered
with a surface structure according to the invention by clicking onto them a thin sheet,
the edges of which become positioned around the edges of the doors 2 and 3 and the
walls 4 and 5.
[0014] Figure 2a shows schematically a perspective view of a sheet intended for forming
a surface structure according to the invention. A sheet 6 is bent at two opposite
edges thereof at two bending points 7 and 8 in parallel. At the edge of the sheet,
the bending is carried out in the same direction at both bending points in such a
way that the edge of the sheet 6 is provided with a groove 9 towards the opposite
edge of the sheet. At the opposite edge of the sheet, the bending is naturally carried
out in the opposite direction in such a way that both edges of the sheet are provided
with grooves 9 on the same side of the sheet 6. Figure 2b shows an end view of a sheet
according to Figure 2a. Figure 2c shows the edge of the sheet in more detail, and
it can be seen how the sheet is bent at bending points 7 and 8 so as to form the groove
9. The internal bending radius of the bending points 7 and 8 is dimensioned in such
a way that it is at the corresponding point substantially equal to the bending radius
of the outer surface of the part upon which the sheet 6 is intended to be mounted.
As indicated by Figure 2c, the sheet can be bent in such a way that the angle between
the sheet surfaces relative to the bending points is less than 90°. In this way, the
edges of the sheets are pressed tightly against the edges of the part to be coated,
which keeps the sheet firmly in place. Naturally, the angles may also be different,
depending on the corresponding angles in the household appliance or refrigeration
equipment.
[0015] Figure 3 shows schematically a sheet mounted upon a door 10 of a cold store, where
it forms a visible surface in its proper place. Between the door and the actual cold
store, there is a sealing 11, due to which there remains a space behind the door edges.
The narrow bends at the edges of the sheet 6 become positioned in this space behind
the edges of the door 10, fixing the sheet 6 firmly against the door. Correspondingly,
a space must be formed adjacent the wall edges of the household appliance or refrigeration
equipment, into which space the edges of the sheet 6 fit if a sheet forming a visible
surface is to be positioned upon the walls. To prevent the sheet from sliding downwards
in the elevational direction, the end part of the door 10, for example, is provided
with a small protrusion extending outside the actual surface sheet of the door, against
which protrusion the lower edge of the sheet 6 becomes positioned and which protrusion
functions as a locking member, locking the sheet in its place downwards.
[0016] A sheet may be manufactured of different transparent or non-transparent plastics
or metals. Transparent plastic may be coloured translucently or it may be colourless.
If desired, different patterns may be formed upon or on the inner surface of a sheet
of transparent material, and different loose patterns may also be positioned between
the sheet and the surface of the household appliance or refrigeration equipment. The
sheet may be patterned with various impression techniques, such as serigraphy. Either
the whole outer surface of the sheet or part of it may be painted or otherwise coated
or treated. The sheet surface may also be mechanically treated, for instance by grinding
or sand or the like blasting, or otherwise treated with machining or chemical treatment
in such a way that the surface is provided with a symmetric or an asymmetric pattern,
which is preferably at least somewhat three-dimensional. On such a surface, light
and its reflection from different directions generate various effects on the appearance.
The sheet itself may have locking members to lock it immovably in the direction of
the bent sides. When being mounted, the sheet yields sufficiently owing to its thinness,
so that it is possible to mount it in place by one edge and to press the other edge
such that the sheet eventually clicks in place and becomes locked.
[0017] The drawings and the related description are only intended to illustrate the idea
of the invention. The details of the invention may vary within the scope of the claims.
1. A surface structure for forming a visible surface for household appliances and refrigeration
equipment, characterized in that it comprises a thin sheet (6) to be mounted upon a door or wall of a household appliance
or refrigeration equipment, the sheet (6) forming a visible surface; and that two
opposite edges of the sheet (6) are bent at both edges at two bending points (7, 8)
at a distance from each other substantially in parallel with each other relative to
the sheet (6), and at the same edge in the same bending direction in such a way that
both edges of the sheet (6) are provided with a groove-like space (9), into which
the edges of the door or wall of the household appliance or refrigeration equipment
fit when the sheet (6) is mounted in place upon the door or wall of the household
appliance or refrigeration equipment, whereby the edges of the sheet (6) become positioned
in the space behind the edge of the door or wall of the household appliance or refrigeration
equipment and fix the sheet (6) in place.
2. A surface structure according to claim 1, characterized in that the angles formed by the bends on the side of the grooves are less than 90 degrees.
3. A surface structure according to claim 1 or 2, characterized in that the bending radius of the bends on the side of the grooves is equal to the corresponding
bending radius of the outer surface of the door or wall to be covered with the sheet
(6).
4. A surface structure according to any one of the preceding claims, characterized in that when the bent edges of the sheet (6) are vertical when mounted in place, the household
appliance or refrigeration equipment and/or the sheet (6) comprise/s locking members
that prevent the sheet (6) from sliding downwards in the elevational direction.
5. A surface structure according to claim 4, characterized in that the locking members comprise a protrusion, such as an edge, intended to be positioned
against the lower edge of the sheet (6) in the household appliance or refrigeration
equipment.
6. A surface structure according to any one of the preceding claims, characterized in that the sheet (6) is of plastic.
7. A surface structure according to claim 6, characterized in that the sheet (6) is transparent.
8. A surface structure according to claim 6 or 7, characterized in that the sheet (6) is translucently coloured.
9. A surface structure according to claims 6 to 8, characterized in that there is a pattern on the inner surface of the sheet (6).
10. A surface structure according to any one of claims 1 to 5, characterized in that the sheet (6) is of metal.
11. A surface structure according to any one of the preceding claims, characterized in that the visible surface of the sheet (6) is at least partly painted or coated.
12. A surface structure according to any one of the preceding claims, characterized in that the visible surface of the sheet (6) is at least partly treated in such a way that
a symmetric or an asymmetric, preferably three-dimensional pattern is formed on it.
1. Oberflächenstruktur zum Erzeugen einer sichtbaren Oberfläche für Haushaltsgeräte und
Kühleinrichtungen, dadurch gekennzeichnet, dass sie eine dünne Platte (6) umfasst, die an einer Tür oder Wand eines Haushaltsgerätes
oder einer Kühleinrichtung angebracht wird, wobei die Platte (6) eine sichtbare Fläche
bildet, und dadurch, dass zwei einander gegenüberliegende Kanten der Platte (6) an beiden Kanten an zwei
Biegepunkten (7, 8) in einem Abstand zueinander im Wesentlichen parallel zueinander
relativ zu der Platte (6) und an der gleichen Kante in der gleichen Biegerichtung
so gebogen sind, dass beide Kanten der Platte (3) mit einem rinnenartigen Raum (9)
versehen sind, in den die Kanten der Tür oder Wand des Haushaltsgerätes oder der Kühleinrichtung
passen, wenn die Platte (6) an der Tür oder Wand des Haushaltsgerätes oder der Kühleinrichtung
angebracht wird, so dass die Kanten der Platte (6) in dem Raum hinter der Kante der
Tür oder Wand des Haushaltsgerätes oder der Kühleinrichtung positioniert werden und
die Platte (6) fixieren.
2. Oberflächenstruktur nach Anspruch 1, dadurch gekennzeichnet, dass die Winkel, die durch die Biegungen an der Seite der Rinnen gebildet werden, weniger
als 90° betragen.
3. Oberflächenstruktur nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Biegeradius der Biegungen an der Seite der Rinnen dem entsprechenden Biegeradius
der Außenfläche der Tür oder Wand gleich ist, die mit der Platte (6) bedeckt werden
soll.
4. Oberflächenstruktur nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass, wenn die gebogenen Kanten der Platte (6) vertikal sind, wenn sie angebracht ist,
das Haushaltsgerät oder die Kühleinrichtung und/oder die Platte (6) Arretierelemente
umfasst/umfassen, die verhindern, dass die Platte (6) in der Höhenrichtung nach unten
gleitet.
5. Oberflächenstruktur nach Anspruch 4, dadurch gekennzeichnet, dass die Arretierelemente einen Vorsprung, wie beispielsweise eine Kante, umfassen, der
an der unteren Kante der Platte (6) in dem Haushaltsgerät oder der Kühleinrichtung
positioniert werden soll.
6. Oberflächenstruktur nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Platte (6) aus Kunststoff besteht.
7. Oberflächenstruktur nach Anspruch 6, dadurch gekennzeichnet, dass die Platte (6) transparent ist.
8. Oberflächenstruktur nach Anspruch 6 oder 7, dadurch gekennzeichnet, dass die Platte (6) transluzent gefärbt ist.
9. Oberflächenstruktur nach den Ansprüchen 6 bis 8, dadurch gekennzeichnet, dass ein Muster an der Innenfläche der Platte (6) vorhanden ist.
10. Oberflächenstruktur nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Platte (5) aus Metall besteht.
11. Oberflächenstruktur nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die sichtbare Fläche der Platte (6) wenigstens teilweise lackiert oder beschichtet
ist.
12. Oberflächenstruktur nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die sichtbare Fläche der Platte (6) wenigstens teilweise so behandelt ist, dass ein
symmetrisches oder ein asymmetrisches, vorzugsweise dreidimensionales, Muster darauf
ausgebildet ist.
1. Structure de surface pour former une surface apparente pour des appareils électroménagers
et des équipements de réfrigération, caractérisée en ce qu'elle comprend une feuille mince (6) destinée à être montée sur une porte ou une paroi
d'un appareil électroménager ou d'un équipement de réfrigération, la feuille (6) formant
une surface apparente ; et en ce que deux bords opposés de la feuille (6) sont repliés sur les deux bords en deux points
de pliage (7, 8) situés à une distance l'un de l'autre substantiellement en parallèle
les uns avec les autres par rapport à la feuille (6), et au niveau du même bord dans
la même direction de pliure de telle manière que les deux bords de la feuille (6)
forment un espace (9) semblable à une rainure, dans lequel les bords de la porte ou
de la paroi de l'appareil électroménager ou de l'équipement de réfrigération prennent
place de manière ajustée lorsque la feuille (6) est mise en place sur la porte ou
la paroi de l'appareil électroménager ou de l'équipement de réfrigération, de telle
sorte que les bords de la feuille (6) sont positionnés dans l'espace situé en arrière
du bord de la porte ou de la paroi de l'appareil électroménager ou de l'équipement
de réfrigération et maintiennent la feuille (6) en place.
2. Structure de surface selon la revendication 1, caractérisée en ce que les angles formés par les pliures du côté des rainures sont de moins de 90 degrés.
3. Structure de surface selon la revendication 1 ou 2, caractérisée en ce que le rayon de courbure des pliures du côté des rainures est égal au rayon de courbure
correspondant de la surface extérieure de la porte ou de la paroi destinée à être
couverte par la feuille (6).
4. Structure de surface selon l'une des revendications précédentes, caractérisée en ce que, lorsque les bords pliés de la feuille (6) sont en position verticale après mise
en place, l'appareil électroménager ou l'équipement de réfrigération et/ou la feuille
(6) comprend des organes de verrouillage qui empêchent la feuille (6) de glisser vers
le bas dans la direction d'élévation.
5. Structure de surface selon la revendication 4, caractérisée en ce que les organes de verrouillage comprennent une saillie, telle qu'un rebord, destinée
à être positionnée contre le bord inférieur de la feuille (6) dans l'appareil électroménager
ou l'équipement de réfrigération.
6. Structure de surface selon l'une des revendications précédentes, caractérisée en ce que la feuille (6) est en matière plastique.
7. Structure de surface selon la revendication 6, caractérisée en ce que la feuille (6) est transparente.
8. Structure de surface selon la revendication 6 ou 7, caractérisée en ce que la feuille (6) est colorée et translucide.
9. Structure de surface selon l'une des revendications 6 à 8, caractérisée en ce qu'un motif est aménagé sur la surface intérieure de la feuille (6).
10. Structure de surface selon l'une des revendications 1 à 5, caractérisée en ce que la feuille (6) est en métal.
11. Structure de surface selon l'une des revendications précédentes, caractérisée en ce que la surface apparente de la feuille (6) est au moins en partie peinte ou pourvue d'un
revêtement.
12. Structure de surface selon l'une des revendications précédentes, caractérisée en ce que la surface apparente de la feuille (6) est au moins en partie traitée de telle manière
qu'un motif symétrique ou asymétrique, de préférence tridimensionnel, est formé sur
celle-ci.
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