EP2221124A2 - Method for producing a door or a lid or a wall of a household device - Google Patents

Method for producing a door or a lid or a wall of a household device Download PDF

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Publication number
EP2221124A2
EP2221124A2 EP10001288A EP10001288A EP2221124A2 EP 2221124 A2 EP2221124 A2 EP 2221124A2 EP 10001288 A EP10001288 A EP 10001288A EP 10001288 A EP10001288 A EP 10001288A EP 2221124 A2 EP2221124 A2 EP 2221124A2
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EP
European Patent Office
Prior art keywords
door
lid
wall
sheet
forming
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP10001288A
Other languages
German (de)
French (fr)
Other versions
EP2221124A3 (en
EP2221124B1 (en
Inventor
Jürgen Gillen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Liebherr Hausgeraete Lienz GmbH
Original Assignee
Liebherr Hausgeraete Lienz GmbH
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Publication of EP2221124A2 publication Critical patent/EP2221124A2/en
Publication of EP2221124A3 publication Critical patent/EP2221124A3/en
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Publication of EP2221124B1 publication Critical patent/EP2221124B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00—Making hollow objects
    • B21D51/16—Making hollow objects characterised by the use of the objects
    • B21D51/52—Making hollow objects characterised by the use of the objects boxes, cigarette cases, or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00—Making hollow objects
    • B21D51/16—Making hollow objects characterised by the use of the objects
    • B21D51/38—Making inlet or outlet arrangements of cans, tins, baths, bottles, or other vessels; Making can ends; Making closures
    • B21D51/44—Making closures, e.g. caps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/02—Doors; Covers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/18—Aesthetic features

Definitions

  • the present invention relates to a method for producing a door or a lid or a wall of a household appliance.
  • refrigerators or freezers such as refrigerators or freezers or chests usually have exterior doors or - lids, which consist of a painted metal sheet, which is formed in the desired manner.
  • exterior doors or - lids which consist of a painted metal sheet, which is formed in the desired manner.
  • the production of the outer door or the lid is characterized in that the first of a sheet metal blank, for example by deep drawing or other suitable forming process, the door or the lid is formed and is then provided with a paint job. Although this procedure leads to high-quality products, it is comparatively expensive.
  • the present invention is therefore based on the object, a method for producing a door or a lid or a wall of a household appliance to develop it so that it can be carried out easily and leads to high-quality results.
  • the method comprises the step of forming a painted sheet.
  • the essential object of the present invention is therefore that an already painted sheet is formed. This has the advantage that the sheet is first painted or can already be supplied finished painted and then only has to be reshaped and, where appropriate, must be brought by further processing steps such as drilling, etc. in its final configuration.
  • the painted sheet is deformed by deep drawing.
  • the forming comprises the method of bending.
  • the sheet or the door or the lid or the wall can of course be subjected to further processing steps except the forming. Examples include punching, embossing, drilling, grinding, etc.
  • these further processing steps can basically be carried out before or after the painting of the sheet.
  • the sheet is first painted or delivered in the painted state and then processed by forming and optionally further processing steps. It is essential that the actual forming process, in particular the deep drawing with the already painted sheet is made.
  • Forming can include both deep drawing and bending. It is conceivable that, after deep-drawing, the bending of, for example, edges or side surfaces of the door or the like takes place.
  • the sheet or the door or the lid or the wall has a flat (flat or curved), the front or top forming portion of the at least one or more, and more preferably all side edges preferably through Deep drawing be transformed so that they extend at an angle to the area.
  • the sheet metal or the door or the lid or the wall has a flat area, followed by the surfaces formed by deep drawing, for example. This can for example apply to the two lateral areas, for the top or bottom or front and back or for all edges of a door or the lid or the wall.
  • the reshaping can be carried out in such a way that the angle between these reshaped regions and the two-dimensional region forming the front is between 60 ° and 120 °, preferably between 80 ° and 100 ° and particularly preferably at 90 °. It is thus conceivable, for example, that from the front side at right angles to the top and / or bottom and / or in both lateral areas formed sheet metal sections extend.
  • the thus formed side edges can in turn be formed, preferably folded.
  • the reshaping or folding can take place in such a way that the reshaped area runs parallel or substantially parallel to the flat area of the sheet or the door or the cover or the wall forming the front or top side.
  • the door produced by the method according to the invention has a front or upper side which merges in its peripheral areas into, for example, sections running at right angles, which in turn are folded in their end regions
  • the folded portions may extend parallel to the front of the door or lid.
  • the coating of the sheet is carried out using a wet paint.
  • a lacquer is used which is comparatively soft or has such great elasticity that it preferably also allows for forming in the hardened or dry state, in particular deep-drawing of the sheet, without flaking or cracking Other damage to the paint comes.
  • wet paints come into question.
  • the invention is not limited to such paints.
  • the sheet metal or the door or the lid or the wall is painted only on one side, in particular only on its visible to the user outside. This may be sufficient in cases where the non-painted inside is provided with veneers, foams, etc.
  • the invention also includes the case that the door or the lid or the wall or the sheet from which it is formed is painted on both sides.
  • the invention further relates to a household appliance, in particular a refrigerator and / or freezer with at least one door or a lid or a wall, which is prepared by a method according to any one of claims 1 to 13 or an outer door or lid or Having outer wall, which is prepared by a method according to any one of claims 1 to 13.
  • FIG. 1 shows a perspective view of the corner region of an outer door 10 of a refrigerator or freezer according to the invention.
  • the outer door 10 is made of a painted sheet, which was deviating from known from the prior art exterior doors first painted and then deformed by deep drawing. That is, the forming process was carried out with the already painted sheet.
  • the outer door 10 according to FIG. 1 has a flat, facing the user of the device front side 12, which may be designed, for example, flat, convex or concave.
  • This front side 12 close an upper wall 14, two lateral walls 16 and a in FIG. 1 not shown lower wall. These walls or areas were obtained by the fact that the painted sheet of which the outer door 10 is made, was deformed by deep drawing. In the embodiment shown here, they extend substantially perpendicular to the front side 12.
  • the upper side 14 of the outer door 10 is provided with a plurality of bores, which serve for example for receiving a bearing of a closing damping, etc. These holes can be introduced, for example after deep drawing the door.
  • FIG. 2 shows an interior view of the outer door 10 according to FIG. 1 , From this view, it can be seen that the sheet of which the door 10 is made, painted only on one side. The out FIG. 2 apparent inward facing area is not painted.
  • the upper side 14 obtained by reshaping and the side edges 16 of the outer door 10 are angled in their end region again so that regions 14 'and 16' are formed. These areas 14 ', 16' extend in turn, at right angles to the deformed region 14, 16. In principle, however, deviating angular ranges are also possible and encompassed by the invention.
  • bevelled areas 14 'and 16' do not overlap, but are cut so that they are not in contact with each other or are arranged side by side or executed on impact.
  • the door 10 according to FIG. 1 is provided with a coating that is designed so soft or elastic that even in its cured or dried state, a deformation by deep drawing or other forming processes allowed without it comes to a chipping or other damage to the paint.
  • the painting thus follows the thermoforming or forming process, the resulting movements, without causing a chipping or cracking, etc. of the paint. It is thus possible that finished painted sheets are delivered and then deformed such that the embodiments exemplified in the figures are achieved.
  • the outer doors shown there can then be further processed, for example, be foamed or provided with other fittings to finally be able to provide, for example, a finished door of a refrigerator or freezer.
  • the designs apply to lids of chests accordingly.
  • wall used in the context of the present invention is to be interpreted broadly and includes any component which is obtained by forming the coated sheet. It may, for example, be an outer wall of the household appliance or else any other wall arranged, for example, in the interior of the appliance.
  • the household appliance may be, for example, a refrigerator and / or freezer.
  • Other household appliances such. As dishwashers, stoves, washing machines, etc. are included in the invention.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Refrigerator Housings (AREA)
  • Closures For Containers (AREA)
  • Securing Of Glass Panes Or The Like (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

The method involves painting a metal sheet at one side or two sides using a splashy paint for forming a painted outer door (10), a lid and a wall of a household device. The painted metal sheet is shaped using deep drawing, punching, stamping or drilling processes. The shaped sheet is folded. Side edges are formed from a flat, planar or curved region of the metal sheet such that the side edges run at a preset angle to the flat, planar or curved region, where the angle ranges between 80 and 100 degrees.

Description

Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung einer Tür oder eines Deckels oder einer Wandung eines Haushaltsgerätes.The present invention relates to a method for producing a door or a lid or a wall of a household appliance.

Aus dem Stand der Technik bekannte Kühl- bzw. Gefriergeräte, wie beispielsweise Kühl- oder Gefrierschränke oder -truhen weisen üblicherweise Außentüren bzw. - deckel auf, die aus einem lackierten Metallblech bestehen, das in der gewünschten Art und Weise ausgeformt ist. Bei aus dem Stand der Technik bekannten Geräten erfolgt die Herstellung der Außentür bzw. des -deckels dadurch, dass zunächst aus einem Blechzuschnitt beispielsweise durch Tiefziehen oder sonstige geeignete Umformverfahren die Tür bzw. der Deckel ausgeformt wird und sodann mit einer Lackierung versehen wird. Diese Vorgehensweise führt zwar zu qualitativ hochwertigen Produkten, ist jedoch vergleichsweise aufwendig.Conventionally known refrigerators or freezers, such as refrigerators or freezers or chests usually have exterior doors or - lids, which consist of a painted metal sheet, which is formed in the desired manner. In known from the prior art devices, the production of the outer door or the lid is characterized in that the first of a sheet metal blank, for example by deep drawing or other suitable forming process, the door or the lid is formed and is then provided with a paint job. Although this procedure leads to high-quality products, it is comparatively expensive.

Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, ein Verfahren zur Herstellung einer Tür oder eines Deckels oder einer Wandung eines Haushaltsgerätes dahingehend weiterzubilden, dass dieses einfach ausgeführt werden kann und zu qualitativ hochwertigen Ergebnissen führt.The present invention is therefore based on the object, a method for producing a door or a lid or a wall of a household appliance to develop it so that it can be carried out easily and leads to high-quality results.

Diese Aufgabe wird durch ein Verfahren mit den Merkmalen des Anspruchs 1 gelöst. Danach ist vorgesehen, dass das Verfahren den Schritt des Umformens eines lackierten Bleches umfasst.This object is achieved by a method having the features of claim 1. Thereafter, it is envisaged that the method comprises the step of forming a painted sheet.

Wesentlicher Gegenstand der vorliegenden Erfindung ist es somit, dass ein bereits lackiertes Blech umgeformt wird. Dies bringt den Vorteil mit sich, dass das Blech erst lackiert wird bzw. bereits fertig lackiert angeliefert werden kann und dann nur noch umgeformt werden muss und gegebenenfalls durch weitere Bearbeitungsschritte wie beispielsweise Bohren etc. in seine endgültige Ausgestaltung gebracht werden muss.The essential object of the present invention is therefore that an already painted sheet is formed. This has the advantage that the sheet is first painted or can already be supplied finished painted and then only has to be reshaped and, where appropriate, must be brought by further processing steps such as drilling, etc. in its final configuration.

Besonders vorteilhaft ist es, wenn das lackierte Blech durch Tiefziehen verformt wird. Alternativ oder zusätzlich kann beispielsweise vorgesehen sein, dass das Umformen das Verfahren des Biegens umfasst.It is particularly advantageous if the painted sheet is deformed by deep drawing. Alternatively or additionally, it may be provided, for example, that the forming comprises the method of bending.

Wie ausgeführt, kann das Blech bzw. die Tür oder der Deckel oder die Wandung selbstverständlich auch weiteren Bearbeitungsschritten außer dem Umformen unterzogen werden. Exemplarisch sind hier das Stanzen, Prägen, Bohren, Schleifen etc. zu nennen.As stated, the sheet or the door or the lid or the wall can of course be subjected to further processing steps except the forming. Examples include punching, embossing, drilling, grinding, etc.

Diese weiteren Bearbeitungsschritte können grundsätzlich vor oder nach dem Lackieren des Bleches vorgenommen werden. Vorzugsweise wird zunächst das Blech lackiert oder im lackierten Zustand angeliefert und sodann durch Umformen und gegebenenfalls weitere Bearbeitungsschritte bearbeitet. Wesentlich ist, dass der eigentliche Umformvorgang, insbesondere das Tiefziehen mit dem bereits lackierten Blech vorgenommen wird.These further processing steps can basically be carried out before or after the painting of the sheet. Preferably, the sheet is first painted or delivered in the painted state and then processed by forming and optionally further processing steps. It is essential that the actual forming process, in particular the deep drawing with the already painted sheet is made.

Das Umformen kann sowohl das Tiefziehen als auch das Biegen bzw. Abkanten umfassen. Denkbar ist es, dass nach dem Tiefziehen das Biegen von beispielsweise Kanten oder Seitenflächen der Tür oder dergleichen erfolgt.Forming can include both deep drawing and bending. It is conceivable that, after deep-drawing, the bending of, for example, edges or side surfaces of the door or the like takes place.

Denkbar ist es weiterhin, dass das Blech bzw. die Tür oder der Deckel oder die Wandung einen flächigen (ebenen oder gebogenen), die Vorder- bzw. Oberseite bildenden Bereich aufweist, von dem wenigstens eine oder mehrere, und besonders bevorzugt alle Seitenkanten vorzugsweise durch Tiefziehen derart umgeformt werden, dass sie im Winkel zu dem flächigen Bereich verlaufen.It is also conceivable that the sheet or the door or the lid or the wall has a flat (flat or curved), the front or top forming portion of the at least one or more, and more preferably all side edges preferably through Deep drawing be transformed so that they extend at an angle to the area.

Somit ist es beispielsweise denkbar, dass das Blech bzw. die Tür oder der Deckel oder die Wandung einen flachen Bereich aufweist, an den sich beispielsweise durch Tiefziehen ausgebildete Flächen anschließen. Dies kann beispielsweise für die zwei seitlichen Bereiche, für die Ober- oder Unterseite bzw. Vorder- und Rückseite oder für alle Kanten einer Tür bzw. des Deckels oder der Wandung gelten.Thus, it is conceivable, for example, that the sheet metal or the door or the lid or the wall has a flat area, followed by the surfaces formed by deep drawing, for example. This can for example apply to the two lateral areas, for the top or bottom or front and back or for all edges of a door or the lid or the wall.

Das Umformen kann dabei derart ausgeführt sein, dass der Winkel zwischen diesen umgeformten Bereichen und dem flächigen, die Frontseite bildenden Bereich zwischen 60° und 120°, vorzugsweise zwischen 80° und 100° und besonders bevorzugt bei 90° liegt. Denkbar ist es somit beispielsweise, dass sich von der Frontseite im rechten Winkel an der Ober- und/oder Unterseite und/oder in beiden seitlichen Bereichen umgeformte Blechabschnitte erstrecken.The reshaping can be carried out in such a way that the angle between these reshaped regions and the two-dimensional region forming the front is between 60 ° and 120 °, preferably between 80 ° and 100 ° and particularly preferably at 90 °. It is thus conceivable, for example, that from the front side at right angles to the top and / or bottom and / or in both lateral areas formed sheet metal sections extend.

Die auf diese Weise umgeformten Seitenkanten können ihrerseits umgeformt, vorzugsweise abgekantet werden. Das Umformen bzw. Abkanten kann derart erfolgen, dass der umgeformte Bereich parallel oder im wesentlichen parallel zu dem flächigen, die Vorder- bzw. Oberseite bildenden Bereich des Bleches oder der Tür oder des Deckels oder der Wandung verläuft. So ist es beispielsweise denkbar, dass die durch das erfindungsgemäße Verfahren hergestellte Tür eine Front- bzw. Oberseite aufweist, die in ihren Randbereichen in dazu beispielsweise rechtwinklig verlaufende Abschnitte übergeht, die ihrerseits in ihren Endbereichen abgekantet sind, wobei die abgekanteten Bereiche beispielsweise parallel zur Frontseite der Tür oder des Deckels verlaufen können.The thus formed side edges can in turn be formed, preferably folded. The reshaping or folding can take place in such a way that the reshaped area runs parallel or substantially parallel to the flat area of the sheet or the door or the cover or the wall forming the front or top side. Thus, it is conceivable, for example, that the door produced by the method according to the invention has a front or upper side which merges in its peripheral areas into, for example, sections running at right angles, which in turn are folded in their end regions For example, the folded portions may extend parallel to the front of the door or lid.

Wie ausgeführt, erfolgt, das Lackieren bzw. die Anlieferung des lackierten Bleches vor dessen Umformung in die endgültige Form.As stated, the painting or the delivery of the painted sheet before its transformation takes place in the final form.

Bevorzugt ist es, wenn das Lackieren des Bleches unter Verwendung eines Naßlackes erfolgt.It is preferred if the coating of the sheet is carried out using a wet paint.

Erfindungsgemäß ist vorzugsweise vorgesehen, dass ein Lack eingesetzt wird, der vergleichsweise weich ist bzw. eine so große Elastizität aufweist, dass er vorzugsweise auch im ausgehärteten bzw. trockenen Zustand ein Umformen, insbesondere ein Tiefziehen des Bleches ermöglicht, ohne dass es zu einem Abplatzen oder sonstigen Beschädigungen der Lackierung kommt. Dafür kommen beispielsweise Naßlacke in Frage. Die Erfindung ist jedoch nicht auf derartige Lacke beschränkt.According to the invention, it is preferably provided that a lacquer is used which is comparatively soft or has such great elasticity that it preferably also allows for forming in the hardened or dry state, in particular deep-drawing of the sheet, without flaking or cracking Other damage to the paint comes. For example, wet paints come into question. However, the invention is not limited to such paints.

Beispielsweise kann vorgesehen sein, dass das Blech bzw. die Tür oder der Deckel oder die Wandung nur einseitig, insbesondere nur auf ihrer für den Nutzer sichtbaren Außenseite lackiert wird. Dies kann in den Fällen ausreichend sein, in denen die nicht lackierte Innenseite mit Verblendungen, Ausschäumungen etc. versehen wird. Grundsätzlich ist von der Erfindung jedoch auch der Fall umfasst, dass die Tür oder der Deckel oder die Wandung bzw. das Blech, aus dem dieser geformt wird, beidseitig lackiert ist.For example, it may be provided that the sheet metal or the door or the lid or the wall is painted only on one side, in particular only on its visible to the user outside. This may be sufficient in cases where the non-painted inside is provided with veneers, foams, etc. In principle, however, the invention also includes the case that the door or the lid or the wall or the sheet from which it is formed is painted on both sides.

Die Erfindung betrifft des weiteren ein Haushaltsgerät, insbesondere ein Kühl- und/oder Gefriergerät mit wenigstens einer Tür oder einem Deckel oder einer Wandung, die/der nach einem Verfahren gemäß einem der Ansprüche 1 bis 13 hergestellt ist oder eine Außentür bzw. -deckel oder Außenwandung aufweist, die nach einem Verfahren gemäß einem der Ansprüche 1 bis 13 hergestellt ist.The invention further relates to a household appliance, in particular a refrigerator and / or freezer with at least one door or a lid or a wall, which is prepared by a method according to any one of claims 1 to 13 or an outer door or lid or Having outer wall, which is prepared by a method according to any one of claims 1 to 13.

Weitere Einzelheiten und Vorteile der Erfindung werden anhand eines in der Zeichnung dargestellten Ausführungsbeispiels näher erläutert. Es zeigen:

Figur 1:
eine perspektivische Ansicht des frontseitigen Eckbereiches einer Außentür gemäß der vorliegenden Erfindung und
Figur 2:
eine perspektivische Darstellung des oberen Abschnittes der Innenseite einer Tür eines erfindungsgemäßen Kühl- bzw. Gefriergerätes.
Further details and advantages of the invention will be explained in more detail with reference to an embodiment shown in the drawing. Show it:
FIG. 1:
a perspective view of the front corner portion of an outer door according to the present invention and
FIG. 2:
a perspective view of the upper portion of the inside of a door of a refrigerator or freezer according to the invention.

Figur 1 zeigt in einer perspektivischen Darstellung den Eckbereich einer Außentür 10 eines erfindungsgemäß Kühl- bzw. Gefriergerätes. Die Außentür 10 besteht aus einem lackierten Blech, das abweichend zu aus dem Stand der Technik bekannten Außentüren zunächst lackiert und dann durch Tiefziehen verformt wurde. Das heißt der Umformvorgang erfolgte mit dem bereits lackierten Blech. FIG. 1 shows a perspective view of the corner region of an outer door 10 of a refrigerator or freezer according to the invention. The outer door 10 is made of a painted sheet, which was deviating from known from the prior art exterior doors first painted and then deformed by deep drawing. That is, the forming process was carried out with the already painted sheet.

Die Außentür 10 gemäß Figur 1 weist eine flächige, zum Nutzer des Gerätes gewandte Frontseite 12 auf, die beispielsweise plan, konvex oder konkav ausgeführt sein kann. An diese Frontseite 12 schließen sich eine obere Wandung 14, zwei seitliche Wandungen 16 sowie eine in Figur 1 nicht dargestellte untere Wandung an. Diese Wandungen bzw. Bereiche wurden dadurch erhalten, dass das lackierte Blech, aus dem die Außentür 10 besteht, durch Tiefziehen verformt wurde. In dem hier dargestellten Ausführungsbeispiel erstrecken sie sich im wesentlichen rechtwinkelig zur Frontseite 12. Wie dies aus Figur 1 weiter hervorgeht, ist die obere Seite 14 der Außentür 10 mit mehreren Bohrungen versehen, die beispielsweise zur Aufnahme eines Lagers einer Schließdämpfung etc. dienen. Diese Bohrungen können beispielsweise nach dem Tiefziehen der Tür eingebracht werden.The outer door 10 according to FIG. 1 has a flat, facing the user of the device front side 12, which may be designed, for example, flat, convex or concave. At this front side 12 close an upper wall 14, two lateral walls 16 and a in FIG. 1 not shown lower wall. These walls or areas were obtained by the fact that the painted sheet of which the outer door 10 is made, was deformed by deep drawing. In the embodiment shown here, they extend substantially perpendicular to the front side 12. As this FIG. 1 further shows, the upper side 14 of the outer door 10 is provided with a plurality of bores, which serve for example for receiving a bearing of a closing damping, etc. These holes can be introduced, for example after deep drawing the door.

Figur 2 zeigt eine Innenansicht der Außentür 10 gemäß Figur 1. Aus dieser Ansicht ist ersichtlich, dass das Blech, aus dem die Tür 10 besteht, nur einseitig lackiert ist. Der aus Figur 2 ersichtliche nach innen gewandte Bereich ist nicht lackiert. FIG. 2 shows an interior view of the outer door 10 according to FIG. 1 , From this view, it can be seen that the sheet of which the door 10 is made, painted only on one side. The out FIG. 2 apparent inward facing area is not painted.

Wie dies aus Figur 2 weiter hervorgeht, sind die durch Umformen erhaltene Oberseite 14 sowie die Seitenkanten 16 der Außentür 10 in ihrem Endbereich nochmals abgewinkelt, so dass Bereiche 14' bzw. 16' entstehen. Diese Bereiche 14', 16' verlaufen ihrerseits rechtwinklig zu den umgeformten Bereich 14, 16. Grundsätzlich sind jedoch auch davon abweichende Winkelbereiche möglich und von der Erfindung mitumfasst.Like this FIG. 2 As can be seen further, the upper side 14 obtained by reshaping and the side edges 16 of the outer door 10 are angled in their end region again so that regions 14 'and 16' are formed. These areas 14 ', 16' extend in turn, at right angles to the deformed region 14, 16. In principle, however, deviating angular ranges are also possible and encompassed by the invention.

Wie dies aus Figur 2 weiter hervorgeht, überlappen sich diese abgekanteten Bereiche 14' und 16' in ihren Endbereichen. Ein solcher Endbereich ist in Figur 2 mit dem Bezugzeichen 15 gekennzeichnet.Like this FIG. 2 further, these folded portions 14 'and 16' overlap in their end portions. Such an end region is in FIG. 2 marked with the reference numeral 15.

Grundsätzlich ist es ebenfalls denkbar, dass die abgekanteten Bereiche 14' und 16' sich nicht überlappen, sondern so zugeschnitten werden, dass sie nicht miteinander in Kontakt stehen bzw. nebeneinander angeordnet sind oder auf Stoß ausgeführt sind.In principle, it is also conceivable that the bevelled areas 14 'and 16' do not overlap, but are cut so that they are not in contact with each other or are arranged side by side or executed on impact.

Die Tür 10 gemäß Figur 1 ist mit einer Lackierung versehen, die derart weich bzw. elastisch ausgeführt ist, dass sie selbst in ihrem ausgehärteten bzw. getrockneten Zustand ein Verformen durch Tiefziehen oder sonstige Umformverfahren erlaubt, ohne dass es zu einem Abplatzen oder einer sonstigen Beschädigung des Lackes kommt. Die Lackierung folgt somit beim Tiefzieh- bzw. Umformvorgang den dabei entstehenden Bewegungen, ohne dass es zu einem Abplatzen oder zu Rissbildungen etc. des Lackes kommt. Es ist somit möglich, dass fertig lackierte Bleche angeliefert werden und sodann derart verformt werden, dass die in den Figuren exemplarisch dargestellten Ausführungsformen erreicht werden. Die dort gezeigten Außentüren können dann weiterverarbeitet werden, beispielsweise ausgeschäumt werden bzw. mit weiteren Beschlagteilen versehen werden, um schließlich beispielsweise eine fertige Tür eines Kühl- bzw. Gefriergerätes bereitstellen zu können. Die Ausführungen gelten für Deckel von Truhen entsprechend.The door 10 according to FIG. 1 is provided with a coating that is designed so soft or elastic that even in its cured or dried state, a deformation by deep drawing or other forming processes allowed without it comes to a chipping or other damage to the paint. The painting thus follows the thermoforming or forming process, the resulting movements, without causing a chipping or cracking, etc. of the paint. It is thus possible that finished painted sheets are delivered and then deformed such that the embodiments exemplified in the figures are achieved. The outer doors shown there can then be further processed, for example, be foamed or provided with other fittings to finally be able to provide, for example, a finished door of a refrigerator or freezer. The designs apply to lids of chests accordingly.

Der im Rahmen der vorliegenden Erfindung verwendete Begriff "Wandung" ist weit auszulegen und umfasst jedes beliebige Bauteil, das durch Umformen des lackierten Bleches erhalten wird. Es kann sich beispielsweise um eine Außenwandung des Haushaltsgeräts oder auch um jede beliebige andere beispielsweise im Innenbereich des Gerätes angeordnete Wandung handeln.The term "wall" used in the context of the present invention is to be interpreted broadly and includes any component which is obtained by forming the coated sheet. It may, for example, be an outer wall of the household appliance or else any other wall arranged, for example, in the interior of the appliance.

Bei dem Haushaltsgerät kann es sich beispielsweise um ein Kühl- und/oder Gefriergerät handeln. Auch andere Haushaltsgeräte, wie z. B. Geschirrspülmaschinen, Herde, Waschmaschinen etc. sind von der Erfindung mitumfasst.The household appliance may be, for example, a refrigerator and / or freezer. Other household appliances such. As dishwashers, stoves, washing machines, etc. are included in the invention.

Claims (14)

Verfahren zur Herstellung einer Tür oder eines Deckels oder einer Wandung eines Haushaltsgerätes,
dadurch gekennzeichnet,
dass das Verfahren den Schritt des Umformens eines lackierten Bleches zur Ausbildung einer lackierten Tür oder eines lackierten Deckels oder einer lackierten Wandung umfaßt.Method for producing a door or a lid or a wall of a domestic appliance,
characterized,
that the method comprises the step of forming a painted sheet to form a painted door or lacquered lid or lacquered wall. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass das Umformen das Verfahren des Tiefziehens umfasst.A method according to claim 1, characterized in that the forming comprises the method of deep drawing. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das Umformen das Verfahren des Biegens umfaßt.A method according to claim 1 or 2, characterized in that the forming comprises the method of bending. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Blech bzw. die Tür oder der Deckel oder die Wandung weiteren Bearbeitungsschritten außer dem Umformen unterzogen wird.Method according to one of the preceding claims, characterized in that the sheet or the door or the lid or the wall is subjected to further processing steps except the forming. Verfahren nach Anspruch 4, dass es sich bei den weiteren Bearbeitungsschritten um das Stanzen, Prägen oder Bohren handelt.Method according to claim 4, characterized in that the further processing steps are punching, embossing or drilling. Verfahren nach Anspruch 4 oder 5, dadurch gekennzeichnet, dass die weiteren Bearbeitungsschritte vor oder nach dem Lackieren des Bleches vorgenommen werden.A method according to claim 4 or 5, characterized in that the further processing steps are carried out before or after the painting of the sheet. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Umformen die Schritte des Tiefziehens sowie des Biegens umfasst und dass nach dem Tiefziehen das Biegen erfolgt.Method according to one of the preceding claims, characterized in that the forming comprises the steps of deep drawing and bending and that after deep drawing, the bending takes place. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Blech bzw. die Tür oder der Deckel oder die Wandung einen flächigen, ebenen oder gebogenen, die Vorder- bzw. Oberseite bildenden Bereich aufweist, von dem wenigstens eine, vorzugsweise mehrere und besonders bevorzugt alle Seitenkanten vorzugsweise durch Tiefziehen derart umgeformt werden, dass sie im Winkel zu dem flächigen Bereich verlaufen.Method according to one of the preceding claims, characterized in that the sheet or the door or the lid or the wall has a flat, flat or curved, the front or top forming portion of which at least one, preferably more and more preferably All side edges are preferably formed by deep drawing such that they extend at an angle to the area. Verfahren nach Anspruch 8, dadurch gekennzeichnet, dass der Winkel im Bereich zwischen 60° und 120° und vorzugsweise zwischen 80° und 100° liegt.A method according to claim 8, characterized in that the angle is in the range between 60 ° and 120 ° and preferably between 80 ° and 100 °. Verfahren nach Anspruch 8 oder 9, dadurch gekennzeichnet, dass wenigstens eine der umgeformten Seitenkanten ihrerseits umgeformt, vorzugsweise abgekantet wird.A method according to claim 8 or 9, characterized in that at least one of the deformed side edges in turn deformed, preferably folded. Verfahren nach Anspruch 10, dadurch gekennzeichnet, dass das Umformen derart erfolgt, dass der umgeformte Bereich parallel oder im wesentlichen parallel zu dem flächigen, die Vorder- bzw. Oberseite bildenden Bereich des Bleches bzw. der Tür oder des Deckels oder der Wandung verläuft.A method according to claim 10, characterized in that the forming takes place such that the deformed area parallel or substantially parallel extends to the planar, the front or top forming portion of the sheet or the door or the lid or the wall. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass dem Umformen das Lackieren des Bleches vorzugsweise unter Verwendung eines Naßlackes vorausgeht.Method according to one of the preceding claims, characterized in that the forming precedes the painting of the sheet preferably using a wet paint. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Blech einseitig oder beidseitig lackiert wird.Method according to one of the preceding claims, characterized in that the sheet is painted on one side or on both sides. Haushaltsgerät, insbesondere Kühl- und/oder Gefriergerät mit wenigstens einer Tür oder einem Deckel oder einer Wandung, die/der nach einem Verfahren gemäß einem der Ansprüche 1 bis 13 hergestellt ist oder eine Außentür bzw. - deckel oder eine Außenwandung aufweist, die nach einem Verfahren gemäß einem der Ansprüche 1 bis 13 hergestellt ist.Domestic appliance, in particular refrigerator and / or freezer with at least one door or a lid or a wall, which is produced by a method according to one of claims 1 to 13 or has an outer door or - lid or an outer wall, according to a Method according to one of claims 1 to 13.
EP10001288.9A 2009-02-19 2010-02-08 Method for producing a door or a lid or a wall of a household device Not-in-force EP2221124B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009009629 2009-02-19
DE102009014604A DE102009014604A1 (en) 2009-02-19 2009-03-24 Method for producing a door or a lid or a wall of a household appliance

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EP2221124A2 true EP2221124A2 (en) 2010-08-25
EP2221124A3 EP2221124A3 (en) 2011-03-23
EP2221124B1 EP2221124B1 (en) 2013-09-11

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ID=42173446

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EP10001288.9A Not-in-force EP2221124B1 (en) 2009-02-19 2010-02-08 Method for producing a door or a lid or a wall of a household device

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JP6899909B2 (en) 2016-12-22 2021-07-07 シムライズ アーゲー Microcapsules

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JPS5885085A (en) * 1981-11-14 1983-05-21 株式会社東芝 Manufacture of door of refrigerator
JPS5885084A (en) * 1981-11-14 1983-05-21 株式会社東芝 Manufacture of door of refrigerator
SE468227B (en) * 1990-03-14 1992-11-23 Electrolux Ab DOERR WEIGHT OF PLATE
JP3328467B2 (en) * 1994-07-13 2002-09-24 株式会社日立製作所 Bend-formed product with flange, molding device and molding method
JPH0957381A (en) * 1995-08-24 1997-03-04 Hitachi Ltd Metallic thin sheet formed product and manufacture thereof
JP4085502B2 (en) * 1999-02-10 2008-05-14 三菱電機株式会社 Coated steel sheet, refrigerator
JP2002249725A (en) * 2000-12-19 2002-09-06 Dainippon Ink & Chem Inc Coating composition for metal plate and coated metal plate
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DE102005027633A1 (en) * 2005-06-14 2006-12-21 Basf Ag Process for producing painted, sheet-like, metallic moldings
DE102007011553A1 (en) * 2007-03-09 2008-09-11 Chemetall Gmbh A method of coating metallic surfaces with an aqueous polymer-containing composition, the aqueous composition, and the use of the coated substrates
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EP2221124A3 (en) 2011-03-23
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EP2221124B1 (en) 2013-09-11

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