EP2952841B1 - Rear wall for a household refrigerator and household refrigerator with such a rear wall - Google Patents
Rear wall for a household refrigerator and household refrigerator with such a rear wall Download PDFInfo
- Publication number
- EP2952841B1 EP2952841B1 EP15169879.2A EP15169879A EP2952841B1 EP 2952841 B1 EP2952841 B1 EP 2952841B1 EP 15169879 A EP15169879 A EP 15169879A EP 2952841 B1 EP2952841 B1 EP 2952841B1
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- EP
- European Patent Office
- Prior art keywords
- rear wall
- longitudinal axis
- elements
- beams
- embodied
- 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.)
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- 238000004519 manufacturing process Methods 0.000 claims description 102
- 239000006261 foam material Substances 0.000 claims description 7
- 210000001520 comb Anatomy 0.000 claims description 2
- 238000007654 immersion Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 claims 1
- 239000011810 insulating material Substances 0.000 description 10
- 238000005057 refrigeration Methods 0.000 description 8
- 230000001419 dependent effect Effects 0.000 description 5
- 239000006260 foam Substances 0.000 description 4
- 239000011888 foil Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 241000310247 Amyna axis Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Images
Classifications
-
- 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
- F25D23/06—Walls
- F25D23/065—Details
Definitions
- the invention relates to a rear wall for a household refrigerator, which is at least partially made of cardboard, and which has a structure on an outside which has elements that are raised from the plane of the outside.
- the invention also relates to a household refrigerator with such a rear wall.
- a housing In household refrigerators for storing and preserving food, such as a refrigerator or a freezer or a combined refrigerator-freezer, it is known that the rear of a housing is closed with a rear wall.
- This back wall is made of cardboard.
- This rear wall can also have a metal foil and thus accordingly also be embodied in multiple layers. Since a free space, which is filled with a thermally insulating material, for example a foam material, is usually formed between an outer container of the housing and an inner container which is surrounded by the outer container and delimits an interior space or a receiving space for the food, there is also a Corresponding rear closure of the housing through the rear wall required. A corresponding thermally insulating material is also introduced between the rear wall and the inner container.
- a thermally insulating material for example a foam material
- WO 2013/060629 A2 discloses a refrigeration device with a body, the rear wall of which has an outer surface made of cellulose material, the outer surface having a plurality of circular projections.
- EP 2 402 689 A1 discloses a refrigerator / freezer comprising a body with an outer shell and a rear wall, the rear wall forming a rear part of the outer shell and wherein at least one elevation is provided which hides impurities formed during an injection of insulating material, and wherein the elevation of the rear wall protrudes outwards.
- the object of the present invention is to create a rear wall which has a structure which improves the mechanical stability.
- a rear wall according to the invention for a household refrigerator is at least partially made of cardboard.
- the rear wall has an outer side on which a structure is formed and which faces outward when it is mounted on the domestic refrigeration appliance and thus faces away from an interior for receiving food.
- the rear wall is thus uneven.
- the structure has elements that are raised from the plane of the outside.
- An essential idea of the invention is to be seen in the fact that this structure has an element combination and thus comprises an arrangement of several elements.
- the element combination is designed to be periodically repeating when viewed in the direction of a longitudinal axis of the rear wall.
- Such a configuration of the structure can improve the mechanical stability and thus also the torsional rigidity are increased and, in particular, the visual appearance of the rear wall can be made calmer and more uniform and thus more visually appealing.
- the element combination is designed individually depending on a width of the rear wall in terms of the number of comprehensive elements and / or the arrangement of the comprehensive elements relative to one another and / or in the form of the comprehensive elements.
- an individual stiffening structure can thus be designed individually adapted to the respective dimensions of the rear wall, in particular its width and its height.
- the element combination with the elements is designed symmetrically to the longitudinal axis. This also favors the advantages mentioned above.
- the element combination has at least one angular, in particular square, element.
- Such a geometry especially when these specific elements are formed centrally and centrally in the element combination, increases the rigidity to a particular degree.
- the square element has a side length between 50 mm and 56 mm, in particular between 55 mm and 60 mm, in particular 58 mm.
- these square elements are not made too large or too small, so that their stability is relatively high in and of itself and, as a whole, improved stiffening of the rear wall can be achieved through this aspect.
- the element combination has two angular, in particular square, elements which, viewed in the direction of the longitudinal axis, are arranged in a row and spaced from one another and are of the same size. This also achieves a certain symmetry along the longitudinal axis, which increases the advantages mentioned above.
- a distance, which is measured in the direction of the longitudinal axis, between centers of the angular elements is between 90 mm and 110 mm, in particular between 98 mm and 102 mm, in particular 100 mm. This specific positioning of the angular elements with respect to one another also contributes advantageously to the stiffening of the rear wall.
- the element combination only has these angular elements which are arranged in a row in the direction of the longitudinal axis of the rear wall and spaced apart from one another.
- the element combination has at least two differently shaped and thus geometrically different elements.
- the element combination comprises at least two elements with a first geometry and at least two further elements with a second geometry that is different from the first.
- the number of elements with a first geometry is preferably different from a number of elements with the second geometry.
- the combination of elements has a plurality of further elements designed as bars, viewed in the direction of the width of the rear wall. Due to this specific shape of these additional elements, individual designs of the rear wall can be taken into account for individual stiffening and stabilization. In the case of wide rear walls in particular, it is advantageous to design these additional elements in the form of bars. These additional elements in the form of bars combined with the above-mentioned angular elements contribute to the stiffening of wider rear walls.
- the bars have a thickness, measured in the direction of the longitudinal axis of the rear wall, between 15 mm and 20 mm, in particular between 16 mm and 19 mm. They are therefore relatively thin or relatively narrow when viewed in the direction of the longitudinal axis and can therefore also be referred to as rib-like elements.
- the bars viewed in the direction of the longitudinal axis of the rear wall, have a distance between 18 mm and 26 mm, in particular between 20 mm and 24 mm.
- the bars are arranged quasi more closely to one another than the angular elements in their row formed as viewed in the direction of the longitudinal axis. This also makes an advantageous contribution to the mechanical stability of the rear wall, in particular if the rear walls have a greater width than the minimum width mentioned above.
- an element combination has two angular elements which, viewed in the direction of the longitudinal axis of the rear wall, are arranged in a row and spaced apart from one another.
- the element combination has a first plurality of bars as further elements, which are arranged on a first side to the longitudinal axis next to the angular elements in a row also formed in the direction of the longitudinal axis.
- a first bar in the row is arranged with its outer edge facing away from the second bar in the row in the same axial position and thus in the same position along the longitudinal axis of the rear wall, like a first angular element with its outer edge facing away from the second angular element.
- the elements, which are first in the respective rows are thus arranged virtually flush with one another when viewed along the longitudinal axis.
- the element combination comprises a second plurality of bars as further elements, which are also formed on a second side opposite to the longitudinal axis opposite the first side, likewise next to the angular elements and also in turn in a separate row.
- a first bar in this row of the second plurality of bars is arranged with its outer edge facing away from the second bar of this row in the same position along the longitudinal axis of the rear wall, as the first angular element with its outer edge facing away from the second angular element.
- a row of a plurality of bars is formed, in particular symmetrically to the longitudinal axis, viewed in the direction of the longitudinal axis, the angular elements being arranged in the middle of these two pluralities of bars.
- the specific arrangement of the first bars in the row to the first angular element in the row namely an axially identical position of the respective outer edges, favors a very uniform structure of this element combination with respect to one Element combination start.
- the stiffening effect is increased as a result, and especially in the case of an embodiment of this element combination that is then repeated several times along the longitudinal axis, in particular the visual appearance is also significantly improved and calmed down.
- a specific configuration of the element combination in this regard is particularly advantageous in the case of a rear wall that has at least a medium width if rear walls can be produced with, for example, three different fixed widths.
- an element combination has a third plurality of bars which, viewed on the first side to the longitudinal axis in the direction of the width of the rear wall, are formed laterally and in particular without overlapping to the first plurality of bars.
- this further advantageous embodiment of the element combination includes the configuration that the third plurality of bars, viewed in the direction of the longitudinal axis, is offset from the first plurality of bars.
- This specific element combination also includes a fourth plurality of bars as further elements which, viewed on the second side to the longitudinal axis in the direction of the width of the rear wall, are formed laterally to the second plurality of bars, in particular also without overlapping in this width direction.
- This fourth plurality of bars viewed in the direction of the longitudinal axis, is also again offset from the second plurality of bars, the bars of the third plurality each being in the same position along the longitudinal axis as the bars in the fourth plurality.
- This configuration of the element combination is particularly advantageous in the case of very wide rear walls, in particular in the case of the given rear wall that is to be produced as wide as possible.
- the combination of elements preferably comprises a number of five bars with respect to the first plurality of bars.
- the second plurality of bars is also formed with a number of five bars.
- the same preferably also applies to the number of the third plurality of bars and to the number of the fourth plurality of bars.
- the width of the bars of the first plurality and the bars of the second plurality is dependent on the width of the rear wall to be individually manufactured.
- the width of the bars of the third plurality and the width of the bars of the fourth plurality are preferably also dependent on the width of the rear wall to be individually manufactured.
- the element combination viewed in the direction of the longitudinal axis of the rear wall, has a dimension between 180 mm and 220 mm, in particular between 195 mm and 205 mm, in particular 200 mm.
- the invention also relates to a household refrigerator for storing and preserving food, which has a rear wall according to the invention or an advantageous embodiment thereof.
- the household refrigerator can be, for example, a refrigerator or a freezer or a combined refrigerator-freezer.
- it can have a housing which comprises an outer container which surrounds an inner container.
- the inner container delimits an interior space or a receiving space for the food.
- a thermally insulating material is introduced between the inner container and the outer container, which is also formed between the rear wall, which is associated with the outer housing, and the inner container.
- the invention also relates to a method according to claim 11.
- the rear wall is produced in particular by a production system that is described below.
- the production system comprises at least one production tool which is designed to receive or hold the household refrigerator to be produced.
- the production tool comprises a receiving device which has a plurality of production parts that can be moved relative to one another.
- the Manufacturing parts are designed to interlock.
- the production parts form a flat support area on which the rear wall is placed in an intermediate state. Depending on how wide the rear wall is or what width it can be produced, the production parts can be positioned relative to one another.
- the support area for the rear wall formed by the production parts can therefore be adjusted individually in terms of its width. This support area is formed by the fact that the production parts interlock with one another and the individual width can be adjusted depending on the width of the teeth.
- a production part is provided with a shape that has a tree-like structure.
- this central central manufacturing part has a stem-like middle part on which comb elements are arranged protruding on both sides. These comb elements can then also be referred to as arms or branches.
- two further production parts are arranged, each of which also has a one-sided comb structure.
- the named arms or branches of the central middle production part engage in these respective comb structures, wherein the overlap width or immersion depth can be set by shifting the production parts relative to one another.
- the middle part of the middle production part also has angular cutouts. These are lead-throughs or plug-in openings through which further parts required for production can be passed.
- a rear wall is produced with a minimum predetermined width and thus the smallest width, the production parts are arranged in the production system in their maximally interlocking and thus maximally pushed together state. Only the angular leadthroughs formed in the central part of the central production part are then present as holes.
- the rear wall is placed on this configuration of the production tool and the foam material is then introduced between the rear wall and the inner container. Due to the pressure on the rear wall generated by the thermally insulating material, in particular the foam, it is deformed in such a way that it extends into these angular feed-through openings and thereby form the angular elements of the element combination for structuring the outside of the rear wall.
- the above-mentioned production parts are pulled apart to a defined extent and positioned so that the desired width of the rear wall occurs and thus this wider rear wall in turn the production tool can be recorded and held.
- the situation then arises that the intermeshing comb structures no longer engage in one another in a sealing or completely covering manner, but also in this respect then through openings are formed in the intermeshing combs.
- the shapes of these interlocking elements are designed in such a way that the above-mentioned bars can be generated as further elements of the element combination.
- the production system can also be developed further in particular in that, in addition to these production parts of the production tool, plate-like elements are provided which are attached to the side of the production parts facing away from the rear wall. Through this configuration, individual areas of the support area of the production parts can then be covered by these plates, so that in particular the design of the beams to be produced can be influenced as further elements of the element combination.
- periodically repeating element combinations can thus be formed as structures on the outside of the rear wall, which can be designed with one or more columns.
- the column orientation relates to the above-mentioned arrangement in rows that are viewed in the direction of the longitudinal axis of the rear wall.
- FIG. 1 a household refrigeration device 1 for storing and preserving food is shown.
- the perspective illustration shows a view from behind.
- the household refrigeration appliance 1 comprises a housing 2 with an outer container 3.
- the outer container 3 comprises side walls 3a and 3b and a top wall 3c and a rear wall 3d.
- the rear wall 3d is at least partially made of cardboard and preferably also has a metallic foil 4 on an outside facing away from an interior space for storing the food.
- a free space is formed which is filled with a thermally insulating material, for example a foam material.
- a structure 6 is formed on the outside 5 of the rear wall 3d facing away from the thermally insulating material and thus also from the interior.
- the rear wall 3 d is thus uneven on this outside 5.
- a machine room 7 with components 10 of a refrigeration circuit of the domestic refrigeration appliance 1 can also be seen in the lower and rear areas.
- the structure 6 consists of an element combination 8, as shown in FIGS. 7 and 8 is shown in examples, wherein the structure 6 is formed from a plurality of identical element combinations.
- the structure 6 thus has an element combination 8 which, viewed in the direction of a longitudinal axis A of the household refrigerator 1 and thus also the rear wall 3d in the vertical direction and thus extends in the y-direction, forms periodically repeating.
- Household refrigeration appliances 1 are provided which can be designed differently in terms of their width and thus their extension in the x direction. As an example, three specified widths are possible here, so that the rear wall 3d can or must be designed with different widths in this regard.
- FIG. 2 a view of an outside 5 of the rear wall 3d is shown, the rear wall 3d being designed here with a possible smallest width.
- the structure 6 is formed in such a way that a row with angular, in particular square elements 9 is formed in the direction of the longitudinal axis A.
- the elements 9 are designed to be the same size and are arranged at a distance from one another in the direction of the longitudinal axis A. They are arranged centrally viewed in the direction of the width of the rear wall 3b.
- a periodically repeating element combination 8 is also formed by elements 9. Only the elements 9 are present only for the smallest width of the rear wall 3d.
- FIG. 3 a view of the rear side 5 of the rear wall 3d is shown, which, in contrast to the illustration in FIG Fig. 2 has a greater width.
- the structure 6 is different from the configuration in FIG Fig. 2 educated.
- the element combination 8, as viewed here in the direction of the longitudinal axis A of the rear wall 3d, is designed to be periodically repeating, here is dependent on the width of the rear wall 3d in terms of the number of comprehensive elements and / or the arrangement of the comprehensive elements with respect to one another and / or in the form of the comprehensive elements individually and differently to the design in Fig. 2 educated.
- an element combination 8 comprises two angular elements 9, which in turn are arranged in the middle and are arranged at a distance from one another in the direction of the longitudinal axis A.
- the element combination 8 comprises a plurality of further elements which are designed as bars 11.
- the bars 11 have a smaller extension in the direction of the axis A than an element 9. It is provided here that a first plurality 12 of bars 11 are arranged in a further row to one another when viewed in the direction of the longitudinal axis A.
- the bars 11 are of equal size and are arranged at a distance from one another. They are arranged on a first side 13 of the longitudinal axis A in the width direction of the rear wall 3d.
- the structure 6 comprises a second plurality 14 of further elements designed as bars 15, which are arranged on a second side 16 opposite the first side 13 opposite to the axis A, also in a row viewed in the direction of the longitudinal axis A and in this regard also arranged at a distance from one another are.
- the structure 6 and thus also an element combination 8 on the first side 13 comprises a third plurality 17 of further elements of the element combination 8 in the form of bars 18.
- These bars 18, viewed in the width direction of the rear wall 3d, are arranged without overlapping with the bars 11, in particular arranged at a distance from these bars 11.
- the structure 6 and thus also the repeating element combination 8 has a fourth plurality 19 of further elements in the form of bars 20, which are on the second side 16 are trained.
- These bars 20 are again formed in a row viewed in the direction of the longitudinal axis A and are arranged at a distance from one another.
- These bars 20, viewed in the direction of the width of the rear wall 3 d, are also formed without overlapping with the bars 15 and, in particular, are also formed at a distance from them.
- the bars 11 and 15 are each formed in pairs in the same axial position and thus in the same position along the longitudinal axis A when viewed. This preferably also applies to the bars 18 and 20 when viewed in pairs.
- the bars 11, viewed in the direction of the longitudinal axis A are arranged offset to the bars 18 and to the bars 20.
- the bars 15, viewed in the direction of the longitudinal axis A, are also formed offset from the bars 18 and 20.
- Fig. 4 a view of the outside 5 of a further exemplary embodiment of the rear wall 3d is shown.
- the rear wall 3d is shown with a maximum width which is greater than the minimum width in FIG Fig. 2 and the mean width in Fig. 3 .
- the structure 6 is corresponding to the configuration in FIG Fig. 3 designed, the bars 11, 15, 18 and 20 being larger in their dimensions in the width direction and thus in the x direction than in the embodiment in Fig. 3 .
- the bars 11 and 18 are designed in such a way that although they are arranged without overlapping in the width direction, they are directly adjacent to one another. The same applies to the bars 15 and 20 to one another.
- Fig. 5 an unclaimed example of a back wall 3d is shown.
- a view of the outside 5 is also shown.
- a structure 6 is also shown here in which the elements 9 are present.
- an element combination 8 here comprises additional further elements, which are provided as small bars 11 on the side 13 and as further small bars 15 on the opposite side 16 are trained.
- an element combination 8 is formed from several elements 9 and in each case several elements 11 and 15, the element combination 8 then being repeated periodically in the direction of the longitudinal axis A.
- Fig. 6 an unclaimed example is shown in which the outside 5 with the individual structure 6 is again shown.
- the width of the back wall 3d in Fig. 6 is here again larger than in Fig. 5 .
- the difference of the structure 6 and thus also of the repeating element combination 8 can be seen in this embodiment in the fact that the bars 11 and 15 have larger dimensions in the width direction and thus in the x direction than in FIG Fig. 5 .
- Fig. 7 An element combination 8 is shown there, in which two square elements 9 are included.
- the element combination 8 comprises five bars 11, which are formed adjacent on the side 13 and next to the square elements 9 in a separate row.
- the element combination 8 is formed in such a way that a first or upper bar 11a in the row with an outer edge 11b facing away from the further bars following in the row, viewed in the direction of the longitudinal axis A, is in the same position as another in the row of the square Elements 9 is arranged first or uppermost square element 9a with an upper outer edge 9b facing away from the other elements 9 following in the row.
- Fig. 7 on the second side 16 the configuration of the beams 15 that are present is not shown. These bars 15 are symmetrical to the bars 11 in number and arrangement to the axis A.
- the element combination 8 is further specified to the effect that it has five bars 11.
- the bars 11 have a width x1 which is dependent on the width of the rear wall 3d to be produced. All information given so far about the bars 11 and also information given below about the bars 11 apply accordingly to the bars 15 of this element combination 8, which are not shown.
- the bars 11 have a greater width than the elements 9. They have a smaller height (extension in the direction of the longitudinal axis A) and thus a smaller thickness than the elements 9.
- a length of a longitudinal side of the square elements 9 is preferably between 55 mm and 60 mm, in particular 58 mm.
- a distance, measured in the direction of the longitudinal axis A, between centers of adjacent square elements 9 is between 90 mm and 110 mm, in particular 100 mm.
- a thickness of a beam 11 measured in the direction of the longitudinal axis A is between 20 mm and 22 mm, in particular 18 mm.
- a distance, which is measured in the direction of the longitudinal axis A, between two adjacent bars 11 is between 20 mm and 24 mm, in particular 22 mm.
- a dimension of an element combination 8, viewed in the direction of the longitudinal axis A, is between 190 mm and 210 mm, preferably 200 mm.
- Fig. 8 a further embodiment of a structure 6 and also of an element combination 8, which repeats periodically in the direction of the longitudinal axis A, is shown.
- the third plurality 17 of the bars 18 is also shown here. It can be seen that, viewed in the direction of the axis A, the bars 11 and 18 are arranged offset from one another, so that in each case one bar 18 is positioned between two bars 11 with respect to the axial position.
- an element combination 8 has five bars 18.
- a width x2 of the bars 18 is in turn dependent on the width of the rear wall 3b.
- the element combination 8 with the elements 9 and the other elements in the form of the bars 11 and 15, optionally with the additional bars 18 and 20, represent raised elements that are designed to emerge from the plane of the outside 5 to the outside.
- a production system which has at least one production tool 21, as is exemplified in FIG Fig. 9 is shown.
- the production tool 21 is designed to hold the housing 2 during the production process.
- the production tool 21 comprises, for example, three production parts 22, 23 and 24 which can be moved relative to one another.
- the production parts 22 to 24 have interlocking areas so that different settings are possible with regard to their arrangement in width.
- the central middle manufacturing part 22 comprises a middle part 22a and laterally adjoining branches 22b, so that a comb structure on both sides is formed here.
- the production part 23 also comprises corresponding webs or branches 23b on one side, which are arranged to extend laterally on a base part 23a.
- the third manufacturing part 24 is designed accordingly, which has a base part 24a and branches 24b protruding therefrom.
- the branches 23b and 24b are again designed as a comb structure.
- the branches 22b are arranged interlocking with the branches 23b and 24b and in the embodiment in FIG Fig. 9 Shown completely nested so that no recess or no through hole is formed here.
- the Central part 22a of the production part 22 has central rectangular, in particular square, through openings 22c, which can also be referred to as plug-in openings. Further production parts can be passed through these during production.
- the in Fig. 9 The arrangement shown of the production parts 22 to 24 also forms a flat support for the rear wall 3d. During production, this rear wall 3d is thus placed on this flat support and the thermally insulating material is then introduced between the rear wall 3d and the inner container of the domestic refrigerator 1. Due to the representation in Fig.
- Fig. 11 a further representation of a production state is shown in which the production parts 22 to 24 are arranged in a further different positional state to one another. They are pulled apart to a maximum width, so to speak, so that a rear wall 3d with a width according to Fig. 4 can be held and manufactured. As a result, the further bushings 25 to 28 also widen, so that a structure 6 as shown in FIG Fig. 4 is produced.
- the production system can also have separate plates 29 and 30, as shown in FIG Fig. 12 are shown.
- plates 29 and 30 can have specific areas according to FIG Fig. 10 and Fig. 11 formed additional openings 25 to 26 are covered.
- the openings 27 and 28 are completely covered and the openings 25 and 26 are covered in certain areas, so that only very small bars 11 and 15, as shown in relation to the production system in FIG Fig. 12 then in Fig. 5 are formed, are generated.
- FIG. 13 the production plant is also shown with the additional plates 29 and 30, with the plates 29 and 30 being less covered by the plates 29 and 30 of the openings 25 and 26 due to the maximum pulling apart of the production parts 22 and 24 relative to the production part 22. This then creates the structure 6 as shown in FIG Fig. 6 is shown formed.
- the plates 29 and 30 can also be shaped differently. For example, in particular on the mutually facing sides, they cannot have a completely straight course, but for example have at least one step, so that, for example, the width of the plates 29 and 30 in a lower area is greater than in an upper area of these plates 29 and 30. This allows also location-specific covers of lower passage openings 22c are made possible, so that in some areas the formation of elements 9 is also prevented.
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
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- General Engineering & Computer Science (AREA)
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Description
Die Erfindung betrifft eine Rückwand für ein Haushaltskältegerät, welche zumindest bereichsweise aus Pappe ausgebildet ist, und welche an einer Außenseite eine Struktur aufweist, welche sich aus der Ebene der Außenseite sich erhaben ausbildende Elemente aufweist. Des Weiteren betrifft die Erfindung auch ein Haushaltskältegerät mit einer derartigen Rückwand.The invention relates to a rear wall for a household refrigerator, which is at least partially made of cardboard, and which has a structure on an outside which has elements that are raised from the plane of the outside. The invention also relates to a household refrigerator with such a rear wall.
Bei Haushaltskältegeräten zum Lagern und Konservieren von Lebensmitteln, wie beispielsweise einem Kühlgerät oder einem Gefriergerät oder einem Kühl-Gefrier-Kombigerät ist es bekannt, dass ein Gehäuse rückseitig mit einer Rückwand abgeschlossen ist. Diese Rückwand ist aus Pappe ausgebildet. Diese Rückwand kann auch eine Metallfolie aufweisen und somit entsprechend auch mehrlagig ausgebildet sein. Da üblicherweise zwischen einem Außenbehälter des Gehäuses und einem Innenbehälter, der von dem Außenbehälter umgeben ist und einen Innenraum beziehungsweise einen Aufnahmeraum für die Lebensmittel begrenzt, ein Freiraum ausgebildet ist, welcher mit einem thermisch isolierenden Material, beispielsweise einem Schaummaterial, gefüllt ist, ist auch ein entsprechender rückseitiger Abschluss des Gehäuses durch die Rückwand erforderlich. Auch zwischen der Rückwand und dem Innenbehälter ist ein entsprechendes thermisch isolierendes Material eingebracht.In household refrigerators for storing and preserving food, such as a refrigerator or a freezer or a combined refrigerator-freezer, it is known that the rear of a housing is closed with a rear wall. This back wall is made of cardboard. This rear wall can also have a metal foil and thus accordingly also be embodied in multiple layers. Since a free space, which is filled with a thermally insulating material, for example a foam material, is usually formed between an outer container of the housing and an inner container which is surrounded by the outer container and delimits an interior space or a receiving space for the food, there is also a Corresponding rear closure of the housing through the rear wall required. A corresponding thermally insulating material is also introduced between the rear wall and the inner container.
Es ist auch bekannt, dass oben genannte Haushaltskältegeräte mit unterschiedlichen Breiten ausgebildet werden können, wodurch sich auch entsprechende Anforderungen bezüglich der Breite an die Rückwände ergeben.It is also known that the above-mentioned household refrigerators can be designed with different widths, which also results in corresponding requirements with regard to the width of the rear walls.
Die Fertigung dieser Geräte wird in Serie durchgeführt und dabei sind entsprechende Fertigungsanlagen bereitgestellt. Dabei ist es bekannt, dass diese Haushaltskältegeräte mit ihrer Rückseite nach unten horizontal aufgelegt werden und entsprechende Fertigungswerkzeuge vorhanden sind, die dann das Gehäuse beziehungsweise den Korpus des Haushaltsgeräts umgreifen. In dieser Fertigungsanlage wird dann auch die Rückwand aufgebracht und das thermisch isolierende Material eingebracht. Bedarfsgerecht werden in dieser Fertigungsanlage auch die Haushaltsgeräte mit den unterschiedlichen Breiten hergestellt, wobei dazu das haltende Fertigungswerkzeug entsprechend eingestellt wird. Ein Fertigungswerkzeug bildet dabei auch eine Auflage für die Rückwand.The production of these devices is carried out in series and appropriate production facilities are provided. It is known that these household refrigerators are placed horizontally with their backside facing down and that corresponding production tools are available which then encompass the housing or the body of the household appliance. The rear wall is then also applied in this production facility and the thermally insulating material is introduced. Household appliances with the Manufactured in different widths, the holding production tool being adjusted accordingly. A production tool also forms a support for the rear wall.
Aufgrund der Ausgestaltung der Rückwand ist die Stabilität und Verbindungssteifigkeit eingeschränkt.Due to the design of the rear wall, the stability and connection stiffness are limited.
Es ist Aufgabe der vorliegenden Erfindung, eine Rückwand zu schaffen, welche eine Strukturierung aufweist, durch welche die mechanische Stabilität verbessert ist.The object of the present invention is to create a rear wall which has a structure which improves the mechanical stability.
Diese Aufgabe wird durch eine Rückwand, ein Haushaltskältegerät und ein Verfahren gemäß den unabhängigen Ansprüchen gelöst.This object is achieved by a rear wall, a household refrigerator and a method according to the independent claims.
Eine erfindungsgemäße Rückwand für ein Haushaltskältegerät ist zumindest bereichsweise aus Pappe ausgebildet. Die Rückwand weist eine im an dem Haushaltskältegerät montierten Zustand nach außen weisende und somit einem Innenraum zum Aufnehmen von Lebensmitteln abgewandt eine Außenseite auf, an welcher eine Struktur ausgebildet ist. Die Rückwand ist somit uneben ausgebildet. Die Struktur weist sich aus der Ebene der Außenseite erhaben ausbildende Elemente auf. Ein wesentlicher Gedanke der Erfindung ist darin zu sehen, dass diese Struktur eine Elementkombination aufweist und somit eine Anordnung von mehreren Elementen umfasst. Die Elementkombination ist in Richtung einer Längsachse der Rückwand betrachtet sich periodisch wiederholend ausgebildet. Durch eine derartige Ausgestaltung der Struktur kann die mechanische Stabilität und somit auch die Verwindungssteifigkeit erhöht werden und insbesondere auch das optische Erscheinungsbild der Rückwand beruhigter und gleichmäßiger und somit optisch ansprechender gestaltet werden.A rear wall according to the invention for a household refrigerator is at least partially made of cardboard. The rear wall has an outer side on which a structure is formed and which faces outward when it is mounted on the domestic refrigeration appliance and thus faces away from an interior for receiving food. The rear wall is thus uneven. The structure has elements that are raised from the plane of the outside. An essential idea of the invention is to be seen in the fact that this structure has an element combination and thus comprises an arrangement of several elements. The element combination is designed to be periodically repeating when viewed in the direction of a longitudinal axis of the rear wall. Such a configuration of the structure can improve the mechanical stability and thus also the torsional rigidity are increased and, in particular, the visual appearance of the rear wall can be made calmer and more uniform and thus more visually appealing.
Vorzugsweise ist vorgesehen, dass die Elementkombination abhängig von einer Breite der Rückwand in der Anzahl der umfassenden Elemente und/oder der Anordnung der umfassenden Elemente zueinander und/oder in der Form der umfassenden Elemente individuell ausgebildet ist. Dies ist eine besonders vorteilhafte Ausführung, da somit individuell angepasst an die jeweiligen Ausmaße der Rückwand, insbesondere deren Breite und deren Höhe, auch eine individuelle Versteifungsstruktur gestaltet werden kann.It is preferably provided that the element combination is designed individually depending on a width of the rear wall in terms of the number of comprehensive elements and / or the arrangement of the comprehensive elements relative to one another and / or in the form of the comprehensive elements. This is a particularly advantageous embodiment, since an individual stiffening structure can thus be designed individually adapted to the respective dimensions of the rear wall, in particular its width and its height.
Vorzugsweise ist vorgesehen, dass die Elementkombination mit den Elementen symmetrisch zu der Längsachse ausgebildet ist. Auch dies begünstigt die oben genannten Vorteile.It is preferably provided that the element combination with the elements is designed symmetrically to the longitudinal axis. This also favors the advantages mentioned above.
Erfindungsgemäß ist vorgesehen, dass die Elementkombination zumindest ein eckiges, insbesondere quadratisches, Element aufweist. Eine derartige Geometrie, insbesondere, wenn diese spezifischen Elemente zentral und mittig in der Elementkombination ausgebildet sind, erhöht die Steifigkeit im besonderen Maße.According to the invention, it is provided that the element combination has at least one angular, in particular square, element. Such a geometry, especially when these specific elements are formed centrally and centrally in the element combination, increases the rigidity to a particular degree.
Vorzugsweise ist vorgesehen, dass das quadratische Element eine Seitenlänge zwischen 50 mm und 56 mm, insbesondere zwischen 55 mm und 60 mm, insbesondere 58 mm, aufweist. Durch diese Ausgestaltung werden diese quadratischen Elemente nicht zu groß und auch nicht zu klein gestaltet, sodass ihre Stabilität in sich selbst relativ hoch ist und durch diesen Aspekt dann auch eine verbesserte Versteifung der Rückwand als Gesamtes betrachtet erzielt werden kann.It is preferably provided that the square element has a side length between 50 mm and 56 mm, in particular between 55 mm and 60 mm, in particular 58 mm. As a result of this configuration, these square elements are not made too large or too small, so that their stability is relatively high in and of itself and, as a whole, improved stiffening of the rear wall can be achieved through this aspect.
Erfindungsgemäß ist vorgesehen, dass die Elementkombination zwei eckige, insbesondere quadratische, Elemente aufweist, welche in Richtung der Längsachse betrachtet in einer Reihe und beabstandet zueinander angeordnet sind und gleich groß sind. Dadurch wird auch eine bestimmte Symmetrie entlang der Längsachse erzielt, wodurch die oben genannten Vorteile verstärkt werden.According to the invention it is provided that the element combination has two angular, in particular square, elements which, viewed in the direction of the longitudinal axis, are arranged in a row and spaced from one another and are of the same size. This also achieves a certain symmetry along the longitudinal axis, which increases the advantages mentioned above.
Vorzugsweise ist vorgesehen, dass ein Abstand, der sich in Richtung der Längsachse bemisst, zwischen Mittelpunkten der eckigen Elemente zwischen 90 mm und 110 mm, insbesondere zwischen 98 mm und 102 mm, insbesondere 100 mm, beträgt. Auch diese spezifische Positionierung der eckigen Elemente zueinander trägt vorteilhaft zur Versteifung der Rückwand bei.It is preferably provided that a distance, which is measured in the direction of the longitudinal axis, between centers of the angular elements is between 90 mm and 110 mm, in particular between 98 mm and 102 mm, in particular 100 mm. This specific positioning of the angular elements with respect to one another also contributes advantageously to the stiffening of the rear wall.
Bei einer Ausführungsform der Rückwand, welche mit einem ersten, insbesondere kleinsten breiten Maß, ausgebildet wird, kann vorgesehen sein, dass die Elementkombination nur diese eckigen Elemente aufweist, die in Richtung der Längsachse der Rückwand in einer Reihe und beabstandet zueinander angeordnet sind.In one embodiment of the rear wall, which is formed with a first, in particular smallest, wide dimension, it can be provided that the element combination only has these angular elements which are arranged in a row in the direction of the longitudinal axis of the rear wall and spaced apart from one another.
Vorzugsweise ist vorgesehen, dass die Elementkombination zumindest zwei unterschiedlich geformte und somit geometrisch abweichende Elemente aufweist. Insbesondere umfasst die Elementkombination zumindest zwei Elemente mit einer ersten Geometrie und zumindest zwei weitere Elemente mit einer zur ersten unterschiedlichen zweiten Geometrie. Vorzugsweise ist bei der Elementkombination die Anzahl der Elemente mit einer ersten Geometrie unterschiedlich zu einer Anzahl der Elemente mit der zweiten Geometrie.It is preferably provided that the element combination has at least two differently shaped and thus geometrically different elements. In particular, the element combination comprises at least two elements with a first geometry and at least two further elements with a second geometry that is different from the first. In the element combination, the number of elements with a first geometry is preferably different from a number of elements with the second geometry.
Erfindungsgemäß ist vorgesehen, dass die Elementkombination eine Mehrzahl von in Richtung der Breite der Rückwand betrachtet als Balken ausgebildete weitere Elemente aufweist. Durch diese spezifische Formgebung dieser weiteren Elemente kann individuellen Ausführungen der Rückwand zur individuellen Versteifung und Stabilisierung Rechnung getragen werden. Insbesondere bei breiten Rückwänden ist die Ausbildung dieser zusätzlichen weiteren Elemente in Form der Balken vorteilhaft. Diese weiteren Elemente in Form der Balken kombiniert mit den oben genannten eckigen Elementen tragen bei breiteren Rückwänden begünstigend zur Versteifung bei.According to the invention, it is provided that the combination of elements has a plurality of further elements designed as bars, viewed in the direction of the width of the rear wall. Due to this specific shape of these additional elements, individual designs of the rear wall can be taken into account for individual stiffening and stabilization. In the case of wide rear walls in particular, it is advantageous to design these additional elements in the form of bars. These additional elements in the form of bars combined with the above-mentioned angular elements contribute to the stiffening of wider rear walls.
Vorzugsweise ist vorgesehen, dass die Balken eine in Richtung der Längsachse der Rückwand bemessene Dicke zwischen 15 mm und 20 mm, insbesondere zwischen 16 mm und 19 mm, aufweisen. Sie sind daher in Richtung der Längsachse betrachtet relativ dünn beziehungsweise relativ schmal und können somit quasi auch als rippenartige Elemente bezeichnet werden.It is preferably provided that the bars have a thickness, measured in the direction of the longitudinal axis of the rear wall, between 15 mm and 20 mm, in particular between 16 mm and 19 mm. They are therefore relatively thin or relatively narrow when viewed in the direction of the longitudinal axis and can therefore also be referred to as rib-like elements.
Vorzugsweise ist vorgesehen, dass die Balken in Richtung der Längsachse der Rückwand betrachtet einen Abstand zwischen 18 mm und 26 mm, insbesondere zwischen 20 mm und 24 mm, aufweisen. Durch diese Ausgestaltung werden die Balken in ihrer in Richtung der Längsachse betrachtet ausgebildeten Reihe quasi dichter aneinander angeordnet als die eckigen Elemente. Auch dies trägt vorteilhaft zur mechanischen Stabilität der Rückwand bei, insbesondere, wenn die Rückwände eine gegenüber der oben genannten minimalen Breite größere Breite aufweisen.It is preferably provided that the bars, viewed in the direction of the longitudinal axis of the rear wall, have a distance between 18 mm and 26 mm, in particular between 20 mm and 24 mm. As a result of this configuration, the bars are arranged quasi more closely to one another than the angular elements in their row formed as viewed in the direction of the longitudinal axis. This also makes an advantageous contribution to the mechanical stability of the rear wall, in particular if the rear walls have a greater width than the minimum width mentioned above.
Erfindungsgemäß ist vorgesehen, dass eine Elementkombination zwei eckige Elemente aufweist, die in Richtung der Längsachse der Rückwand betrachtet in einer Reihe und beabstandet zueinander angeordnet sind. Bei dieser Ausführung ist des Weiteren vorgesehen, dass die Elementkombination eine erste Mehrzahl von Balken als weitere Elemente aufweist, die auf einer ersten Seite zur Längsachse neben den eckigen Elementen in einer ebenfalls in Richtung der Längsachse ausgebildeten Reihe angeordnet sind. Ein in der Reihe erster Balken ist mit seiner dem zweiten Balken in der Reihe abgewandten Außenrand auf gleicher axialer Lage und somit auf gleicher Lage entlang der Längsachse der Rückwand angeordnet, wie ein erstes eckiges Element mit seinem dem zweiten eckigen Element abgewandten Außenrand. Die in den jeweiligen Reihen somit ersten Elemente sind entlang der Längsachse betrachtet somit quasi auf bündiger Höhe zueinander angeordnet.According to the invention it is provided that an element combination has two angular elements which, viewed in the direction of the longitudinal axis of the rear wall, are arranged in a row and spaced apart from one another. In this embodiment it is further provided that the element combination has a first plurality of bars as further elements, which are arranged on a first side to the longitudinal axis next to the angular elements in a row also formed in the direction of the longitudinal axis. A first bar in the row is arranged with its outer edge facing away from the second bar in the row in the same axial position and thus in the same position along the longitudinal axis of the rear wall, like a first angular element with its outer edge facing away from the second angular element. The elements, which are first in the respective rows, are thus arranged virtually flush with one another when viewed along the longitudinal axis.
Erfindungsgemäß umfasst die Elementkombination eine zweite Mehrzahl von Balken als weitere Elemente, die auf einer der ersten Seite gegenüberliegenden zweiten Seite zur Längsachse ebenfalls neben den eckigen Elementen und auch wiederum in einer eigenen Reihe ausgebildet sind. Ein in dieser Reihe der zweiten Mehrzahl von Balken erster Balken ist mit seiner dem zweiten Balken dieser Reihe abgewandten Außenrand auf gleicher Lage entlang der Längsachse der Rückwand betrachtet angeordnet, wie das erste eckige Element mit seinen dem zweiten eckigen Element abgewandten Außenrand. Bei dieser spezifischen Ausgestaltung der Rückwand mit dieser sehr individuell gestalteten Elementkombination wird somit quasi insbesondere symmetrisch zur Längsachse jeweils eine in Richtung der Längsachse betrachtete Reihe von jeweils einer Mehrzahl von Balken ausgebildet, wobei mittig zu diesen beiden Mehrzahlen der Balken die eckigen Elemente angeordnet sind. Die darüber hinausgehende spezifische Anordnung der in der Reihe jeweils ersten Balken zu dem in der Reihe ersten eckigen Element, nämlich einer axial gleichen Lage der jeweiligen Außenränder, begünstigt eine sehr gleichmäßige Struktur dieser Elementkombination bezüglich einem Elementkombinationsanfang. Die Versteifungswirkung wird dadurch erhöht und gerade auch bei einer dann sich multipel wiederholenden Ausgestaltung dieser Elementkombination entlang der Längsachse ist insbesondere auch das optische Erscheinungsbild wesentlich verbessert und beruhigt.According to the invention, the element combination comprises a second plurality of bars as further elements, which are also formed on a second side opposite to the longitudinal axis opposite the first side, likewise next to the angular elements and also in turn in a separate row. A first bar in this row of the second plurality of bars is arranged with its outer edge facing away from the second bar of this row in the same position along the longitudinal axis of the rear wall, as the first angular element with its outer edge facing away from the second angular element. With this specific configuration of the rear wall with this very individually designed element combination, a row of a plurality of bars is formed, in particular symmetrically to the longitudinal axis, viewed in the direction of the longitudinal axis, the angular elements being arranged in the middle of these two pluralities of bars. The specific arrangement of the first bars in the row to the first angular element in the row, namely an axially identical position of the respective outer edges, favors a very uniform structure of this element combination with respect to one Element combination start. The stiffening effect is increased as a result, and especially in the case of an embodiment of this element combination that is then repeated several times along the longitudinal axis, in particular the visual appearance is also significantly improved and calmed down.
Eine diesbezügliche spezifische Ausgestaltung der Elementkombination ist insbesondere bei einer Rückwand vorteilhaft, die zumindest eine mittlere Breite aufweist, wenn Rückwände mit beispielsweise drei unterschiedlichen feststehenden Breiten hergestellt werden können.A specific configuration of the element combination in this regard is particularly advantageous in the case of a rear wall that has at least a medium width if rear walls can be produced with, for example, three different fixed widths.
Bei einer weiteren vorteilhaften Ausführung ist vorgesehen, dass eine Elementkombination eine dritte Mehrzahl von Balken aufweist, die auf der ersten Seite zur Längsachse in Richtung der Breite der Rückwand betrachtet seitlich und insbesondere überlappungsfrei zu der ersten Mehrzahl der Balken ausgebildet ist. Darüber hinaus umfasst diese weitere vorteilhafte Ausführung der Elementkombination die Ausgestaltung, dass die dritte Mehrzahl der Balken in Richtung der Längsachse betrachtet versetzt zu der ersten Mehrzahl der Balken ausgebildet ist.In a further advantageous embodiment, it is provided that an element combination has a third plurality of bars which, viewed on the first side to the longitudinal axis in the direction of the width of the rear wall, are formed laterally and in particular without overlapping to the first plurality of bars. In addition, this further advantageous embodiment of the element combination includes the configuration that the third plurality of bars, viewed in the direction of the longitudinal axis, is offset from the first plurality of bars.
Diese spezifische Elementkombination umfasst darüber hinaus eine vierte Mehrzahl von Balken als weitere Elemente, die auf der zweiten Seite zur Längsachse in Richtung der Breite der Rückwand betrachtet seitlich, insbesondere ebenfalls in dieser Breitenrichtung überlappungsfrei, zu der zweiten Mehrzahl der Balken ausgebildet ist. Diese vierte Mehrzahl der Balken ist in Richtung der Längsachse betrachtet ebenfalls wiederum versetzt zu der zweiten Mehrzahl der Balken ausgebildet, wobei die Balken der dritten Mehrzahl jeweils auf gleicher Lage entlang der Längsachse betrachtet, wie die Balken in der vierten Mehrzahl ausgebildet sind. Diese Ausgestaltung der Elementkombination ist besonders vorteilhaft bei sehr breiten Rückwänden, insbesondere bei der vorgegebenen breitestmöglich herzustellenden Rückwand.This specific element combination also includes a fourth plurality of bars as further elements which, viewed on the second side to the longitudinal axis in the direction of the width of the rear wall, are formed laterally to the second plurality of bars, in particular also without overlapping in this width direction. This fourth plurality of bars, viewed in the direction of the longitudinal axis, is also again offset from the second plurality of bars, the bars of the third plurality each being in the same position along the longitudinal axis as the bars in the fourth plurality. This configuration of the element combination is particularly advantageous in the case of very wide rear walls, in particular in the case of the given rear wall that is to be produced as wide as possible.
Vorzugsweise umfasst die Elementkombination bezĂĽglich der ersten Mehrzahl von Balken eine Anzahl von fĂĽnf Balken. Insbesondere ist auch die zweite Mehrzahl von Balken mit einer Anzahl von fĂĽnf Balken ausgebildet.The combination of elements preferably comprises a number of five bars with respect to the first plurality of bars. In particular, the second plurality of bars is also formed with a number of five bars.
Entsprechendes gilt vorzugsweise auch fĂĽr die Anzahl der dritten Mehrzahl von Balken und fĂĽr die Anzahl der vierten Mehrzahl von Balken.The same preferably also applies to the number of the third plurality of bars and to the number of the fourth plurality of bars.
In vorteilhafter Weise ist vorgesehen, dass die senkrecht zur Längsachse und somit in Breitenrichtung der Rückwand bemessene Breite der Balken der ersten Mehrzahl und der Balken der zweiten Mehrzahl von der individuell zu fertigenden Breite der Rückwand abhängig ist. Vorzugsweise sind auch die Breite der Balken der dritten Mehrzahl und die Breite der Balken der vierten Mehrzahl abhängig von der individuell zu fertigenden Breite der Rückwand.It is advantageously provided that the width of the bars of the first plurality and the bars of the second plurality, measured perpendicular to the longitudinal axis and thus in the width direction of the rear wall, is dependent on the width of the rear wall to be individually manufactured. The width of the bars of the third plurality and the width of the bars of the fourth plurality are preferably also dependent on the width of the rear wall to be individually manufactured.
Vorzugsweise ist vorgesehen, dass die Elementkombination in Richtung der Längsachse der Rückwand betrachtet ein Ausmaß zwischen 180 mm und 220 mm, insbesondere zwischen 195 mm und 205 mm, insbesondere 200 mm, aufweist.It is preferably provided that the element combination, viewed in the direction of the longitudinal axis of the rear wall, has a dimension between 180 mm and 220 mm, in particular between 195 mm and 205 mm, in particular 200 mm.
Die Erfindung betrifft auch ein Haushaltskältegerät zum Lagern und Konservieren von Lebensmitteln, welches eine Rückwand gemäß der Erfindung oder einer vorteilhaften Ausgestaltung davon aufweist.The invention also relates to a household refrigerator for storing and preserving food, which has a rear wall according to the invention or an advantageous embodiment thereof.
Das Haushaltskältegerät kann beispielsweise ein Kühlgerät oder ein Gefriergerät oder ein Kühl-Gefrier-Kombigerät sein. Es kann insbesondere ein Gehäuse aufweisen, welches einen Außenbehälter umfasst, der einen Innenbehälter umgibt. Der Innenbehälter begrenzt einen Innenraum beziehungsweise einen Aufnahmeraum für die Lebensmittel. Zwischen dem Innenbehälter und dem Außenbehälter ist ein thermisch isolierendes Material eingebracht, welches auch zwischen der Rückwand, die zum Außengehäuse zugehörig ist, und dem Innenbehälter ausgebildet ist.The household refrigerator can be, for example, a refrigerator or a freezer or a combined refrigerator-freezer. In particular, it can have a housing which comprises an outer container which surrounds an inner container. The inner container delimits an interior space or a receiving space for the food. A thermally insulating material is introduced between the inner container and the outer container, which is also formed between the rear wall, which is associated with the outer housing, and the inner container.
Des Weiteren betrifft die Erfindung ein Verfahren gemäß Anspruch 11.The invention also relates to a method according to
Vorteilhafte Ausführungen der erfindungsgemäßen Rückwand sind auch als vorteilhafte Ausführungen des erfindungsgemäßen Verfahrens anzusehen.Advantageous designs of the rear wall according to the invention are also to be regarded as advantageous designs of the method according to the invention.
Die Fertigung der RĂĽckwand wird dabei insbesondere durch eine Fertigungsanlage erzeugt, die im Folgenden beschrieben ist.The rear wall is produced in particular by a production system that is described below.
Die Fertigungsanlage umfasst zumindest ein Fertigungswerkzeug, welches zum Aufnehmen beziehungsweise Halten des zu fertigenden Haushaltskältegeräts ausgebildet ist. Das Fertigungswerkzeug umfasst dabei eine Aufnahmevorrichtung, welche eine Mehrzahl von relativ zueinander bewegbaren Fertigungsteilen aufweist. Die Fertigungsteile sind ineinandergreifend ausgebildet. Die Fertigungsteile bilden einen ebenen Auflagebereich, auf welchem die Rückwand in einem Zwischenzustand aufgelegt wird. Abhängig davon, wie breit die Rückwand ist beziehungsweise mit welcher Breite sie hergestellt werden kann, können die Fertigungsteile relativ zueinander positioniert werden. Der durch die Fertigungsteile gebildete Auflagebereich für die Rückwand kann daher in seiner Breite individuell eingestellt werden. Dieser Auflagebereich bildet sich dadurch, dass die Fertigungsteile verzahnend ineinandergreifen und abhängig von der Weite der Verzahnung die individuelle Breite eingestellt werden kann. Ein Fertigungsteil wird dabei mit einer Formgebung bereitgestellt, welches eine baumartige Struktur aufweist. Dies bedeutet, dass dieses zentrale mittige Fertigungsteil ein stammartiges Mittelteil aufweist, an welchem beidseits abstehend Kammelemente angeordnet sind. Diese Kammelemente können dann auch als Arme beziehungsweise Äste bezeichnet werden. Jeweils an gegenüberliegenden Seiten dieses zentralen mittleren Fertigungsteils sind zwei weitere Fertigungsteile angeordnet, die ebenfalls eine jeweils einseitige Kammstruktur aufweisen. In diese jeweiligen Kammstrukturen greifen die genannten Arme beziehungsweise Äste des zentralen mittleren Fertigungsteils ein, wobei die Überlappungsbreite beziehungsweise Eintauchtiefe durch eine relative Verschiebung der Fertigungsteile zueinander eingestellt werden kann.The production system comprises at least one production tool which is designed to receive or hold the household refrigerator to be produced. The production tool comprises a receiving device which has a plurality of production parts that can be moved relative to one another. The Manufacturing parts are designed to interlock. The production parts form a flat support area on which the rear wall is placed in an intermediate state. Depending on how wide the rear wall is or what width it can be produced, the production parts can be positioned relative to one another. The support area for the rear wall formed by the production parts can therefore be adjusted individually in terms of its width. This support area is formed by the fact that the production parts interlock with one another and the individual width can be adjusted depending on the width of the teeth. A production part is provided with a shape that has a tree-like structure. This means that this central central manufacturing part has a stem-like middle part on which comb elements are arranged protruding on both sides. These comb elements can then also be referred to as arms or branches. In each case on opposite sides of this central central production part, two further production parts are arranged, each of which also has a one-sided comb structure. The named arms or branches of the central middle production part engage in these respective comb structures, wherein the overlap width or immersion depth can be set by shifting the production parts relative to one another.
Der Mittelteil des mittleren Fertigungsteils weist darüber hinaus eckige Aussparungen auf. Diese sind Durchführungen beziehungsweise Stecköffnungen, durch welche weitere für die Fertigung benötigten Teile hindurchgeführt werden können.The middle part of the middle production part also has angular cutouts. These are lead-throughs or plug-in openings through which further parts required for production can be passed.
Wird eine Rückwand mit einer minimalen vorgegebenen Breite und somit einer kleinsten Breite hergestellt, so sind die Fertigungsteile in ihrem maximal ineinandergreifenden und somit maximal zusammengeschobenen Zustand in der Fertigungsanlage angeordnet. Es sind dann lediglich die in dem Mittelteil des zentralen Fertigungsteils ausgebildeten eckigen Durchführungen als Löcher vorhanden. Die Rückwand wird auf diese Ausgestaltung des Fertigungswerkzeugs aufgelegt und dann das Schaummaterial zwischen der Rückwand und dem Innenbehälter eingebracht. Aufgrund des durch das thermisch isolierende Material, insbesondere den Schaum, erzeugten Drucks auf die Rückwand wird diese dahingehend verformt, dass sie sich in diese eckigen Durchführöffnungen hinein erstreckt und dadurch die eckigen Elemente der Elementkombination zur Strukturierung der Außenseite der Rückwand ausbilden.If a rear wall is produced with a minimum predetermined width and thus the smallest width, the production parts are arranged in the production system in their maximally interlocking and thus maximally pushed together state. Only the angular leadthroughs formed in the central part of the central production part are then present as holes. The rear wall is placed on this configuration of the production tool and the foam material is then introduced between the rear wall and the inner container. Due to the pressure on the rear wall generated by the thermally insulating material, in particular the foam, it is deformed in such a way that it extends into these angular feed-through openings and thereby form the angular elements of the element combination for structuring the outside of the rear wall.
Soll bei einer weiteren Fertigung eine Rückwand mit einer gegenüber der oben erläuterten kleinsten Breite größeren Breite hergestellt werden, so werden die oben genannten Fertigungsteile in definiertem Maße auseinandergezogen und so positioniert, dass die gewünschte Breite der Rückwand auftritt und auch somit dann wiederum diese breitere Rückwand in dem Fertigungswerkzeug aufgenommen und gehalten werden kann. Bei dieser Ausgestaltung tritt dann die Situation auf, dass die ineinandergreifenden Kammstrukturen nicht mehr dichtend beziehungsweise vollständig abdeckend ineinandergreifen, sondern auch diesbezüglich dann Durchtrittsöffnungen in den ineinandergreifenden Kämmen ausgebildet sind. Diese ineinandergreifenden Elemente sind in ihren Formgebungen so gestaltet, dass die oben genannten Balken als weitere Elemente der Elementkombination erzeugt werden können. Dies erfolgt dahingehend, dass dann bei dieser zu erzeugenden beispielsweisen mittleren Breite einer Rückwand auch wiederum dann bei aufgelegter Rückwand auf das Fertigungswerkzeug das thermische Isolationsmaterial eingebracht wird. Aufgrund der erläuterten Öffnungen in diesem Auflageteil des Fertigungswerkzeugs wird dann durch das Schaummaterial die Rückwand nicht nur durch die eckigen Durchtrittsöffnungen im Mittelteil des zentralen Fertigungsteils gedrückt, sondern auch durch die Durchtrittsöffnungen, wie sie durch die auseinandergezogenen und ineinandergreifenden Kammelemente der Fertigungsteile ausgebildet sind. Dadurch werden dann auch zusätzlich die Balken der Elementkombination erzeugt.If a rear wall with a width greater than the smallest width explained above is to be produced in a further production, the above-mentioned production parts are pulled apart to a defined extent and positioned so that the desired width of the rear wall occurs and thus this wider rear wall in turn the production tool can be recorded and held. In this embodiment, the situation then arises that the intermeshing comb structures no longer engage in one another in a sealing or completely covering manner, but also in this respect then through openings are formed in the intermeshing combs. The shapes of these interlocking elements are designed in such a way that the above-mentioned bars can be generated as further elements of the element combination. This takes place in such a way that, with this, for example, average width of a rear wall to be produced, the thermal insulation material is then again introduced onto the production tool when the rear wall is in place. Due to the explained openings in this support part of the production tool, the foam material pushes the rear wall not only through the angular passage openings in the central part of the central production part, but also through the passage openings as formed by the pulled apart and interlocking comb elements of the production parts. This also creates the bars of the element combination.
Es kann die Fertigungsanlage auch insbesondere dahingehend weitergebildet werden, dass zusätzlich zu diesen Fertigungsteilen des Fertigungswerkzeugs plattenartige Elemente bereitgestellt werden, die auf der der Rückwand abgewandten Seite der Fertigungsteile angebracht werden. Durch diese Ausgestaltung können dann individuelle Bereiche des Auflagebereichs der Fertigungsteile durch diese Platten abgedeckt werden, sodass insbesondere die Gestaltung der zu erzeugenden Balken als weitere Elemente der Elementkombination beeinflusst werden können.The production system can also be developed further in particular in that, in addition to these production parts of the production tool, plate-like elements are provided which are attached to the side of the production parts facing away from the rear wall. Through this configuration, individual areas of the support area of the production parts can then be covered by these plates, so that in particular the design of the beams to be produced can be influenced as further elements of the element combination.
Abhängig von der Breite der Rückwand können somit periodisch sich wiederholende Elementkombinationen als Strukturen an der Außenseite der Rückwand ausgebildet werden, welche einspaltig oder mehrspaltig gestaltet werden können. Die Spaltenorientierung betrifft in dem Zusammenhang die bereits oben genannte Anordnung in Reihen, die in Richtung der Längsachse der Rückwand betrachtet werden.Depending on the width of the rear wall, periodically repeating element combinations can thus be formed as structures on the outside of the rear wall, which can be designed with one or more columns. In this context, the column orientation relates to the above-mentioned arrangement in rows that are viewed in the direction of the longitudinal axis of the rear wall.
Ausführungsbeispiele der Erfindung werden nachfolgend anhand schematischer Zeichnungen näher erläutert. Es zeigen:
- Fig. 1
- eine perspektivische Ansicht von hinten auf ein Ausführungsbeispiel eines Haushaltskältegeräts;
- Fig. 2
- eine Ansicht einer AuĂźenseite eines AusfĂĽhrungsbeispiels einer RĂĽckwand;
- Fig. 3
- eine Ansicht auf eine Außenseite eines weiteren Ausführungsbeispiels einer erfindungsgemäßen Rückwand;
- Fig. 4
- eine Ansicht auf eine Außenseite eines dritten Ausführungsbeispiels einer erfindungsgemäßen Rückwand;
- Fig. 5
- eine Ansicht auf eine AuĂźenseite eines vierten AusfĂĽhrungsbeispiels einer RĂĽckwand;
- Fig. 6
- eine Ansicht auf eine Außenseite eines fünften Ausführungsbeispiels einer erfindungsgemäßen Rückwand;
- Fig. 7
- eine Darstellung eines AusfĂĽhrungsbeispiels einer ersten Elementkombination einer Struktur einer RĂĽckwand;
- Fig. 8
- eine Darstellung einer weiteren Elementkombination einer Struktur einer RĂĽckwand;
- Fig. 9
- eine vereinfachte Darstellung von Fertigungsteilen eines Fertigungswerkzeugs einer Fertigungsanlage, welche in einem ersten Zustand zueinander angeordnet sind;
- Fig. 10
- die Darstellung der Fertigungsteile gemäß
Fig. 9 in einem zweiten Fertigungszustand zueinander; - Fig. 11
- die Fertigungsteile gemäß
Fig. 9 undFig. 10 in einem weiteren Fertigungszustand zueinander; - Fig. 12
- die Fertigungsteile gemäß in ihrer Anordnung gemäß
Fig. 10 und zusätzlich angeordneten Abdeckplatten; und - Fig. 13
- die Fertigungsteile in ihrer Anordnung gemäß
Fig. 11 und zusätzlich angeordneten Abdeckplatten.
- Fig. 1
- a perspective view from behind of an embodiment of a household refrigerator;
- Fig. 2
- a view of an outside of an embodiment of a rear wall;
- Fig. 3
- a view of an outside of a further embodiment of a rear wall according to the invention;
- Fig. 4
- a view of an outside of a third embodiment of a rear wall according to the invention;
- Fig. 5
- a view of an outside of a fourth embodiment of a rear wall;
- Fig. 6
- a view of an outside of a fifth embodiment of a rear wall according to the invention;
- Fig. 7
- a representation of an embodiment of a first element combination of a structure of a rear wall;
- Fig. 8
- a representation of a further combination of elements of a structure of a rear wall;
- Fig. 9
- a simplified representation of production parts of a production tool of a production plant, which are arranged in a first state to one another;
- Fig. 10
- the representation of the production parts according to
Fig. 9 in a second manufacturing state to each other; - Fig. 11
- the production parts according to
Fig. 9 andFig. 10 in a further manufacturing state to each other; - Fig. 12
- the production parts according to in their arrangement according to
Fig. 10 and additionally arranged cover plates; and - Fig. 13
- the production parts in their arrangement according to
Fig. 11 and additionally arranged cover plates.
In den Figuren werden gleiche oder funktionsgleiche Elemente mit den gleichen Bezugszeichen versehen.Identical or functionally identical elements are provided with the same reference symbols in the figures.
In
Zwischen dem Außenbehälter 3 und einem in
Die Struktur 6 ist aus einer Elementkombination 8, wie sie in
Es werden Haushaltskältegeräte 1 bereitgestellt, welche bezüglich ihrer Breite und somit ihrer Erstreckung in x-Richtung unterschiedlich gestaltet sein können. Beispielhaft sind hier drei vorgegebene Breiten möglich, sodass sich auch die Rückwand 3d mit diesbezüglichen unterschiedlichen Breiten gestalten lässt beziehungsweise gestaltet werden muss.
Dazu ist in
In
Bei dieser Ausführung umfasst eine Elementkombination 8 zwei eckige Elemente 9, die wiederum mittig angeordnet und in Richtung der Längsachse A beabstandet zueinander angeordnet sind. Darüber hinaus umfasst die Elementkombination 8 eine Mehrzahl von weiteren Elementen, die als Balken 11 ausgebildet sind. Die Balken 11 weisen in Richtung der Achse A eine geringere Erstreckung auf als ein Element 9. Es ist hier vorgesehen, dass eine erste Mehrzahl 12 von Balken 11 in einer in Richtung der Längsachse A betrachtet weiteren Reihe zueinander angeordnet sind. Die Balken 11 sind im Ausführungsbeispiel gleich groß und beabstandet zueinander angeordnet. Sie sind in Breitenrichtung der Rückwand 3d auf einer ersten Seite 13 der Längsachse A angeordnet. Darüber hinaus umfasst die Struktur 6 eine zweite Mehrzahl 14 von weiteren als Balken 15 ausgebildeten Elementen, die auf einer der ersten Seite 13 gegenüberliegenden zweiten Seite 16 zur Achse A ebenfalls in einer in Richtung der Längsachse A betrachteten Reihe angeordnet sind und diesbezüglich auch beabstandet zueinander angeordnet sind.In this embodiment, an
DarĂĽber hinaus umfasst die Struktur 6 und somit auch eine Elementkombination 8 auf der ersten Seite 13 eine dritte Mehrzahl 17 von als Balken 18 ausgebildeten weiteren Elementen der Elementkombination 8. Diese Balken 18 sind in Breitenrichtung der RĂĽckwand 3d betrachtet ĂĽberlappungsfrei mit den Balken 11 angeordnet, insbesondere beabstandet zu diesen Balken 11 angeordnet.In addition, the
Darüber hinaus ist in diesem Ausführungsbeispiel vorgesehen, dass die Struktur 6 und somit auch die sich wiederholende Elementkombination 8 eine vierte Mehrzahl 19 von als Balken 20 ausgebildeten weiteren Elementen aufweist, die auf der zweiten Seite 16 ausgebildet sind. Auch diese Balken 20 sind wiederum in einer in Richtung der Längsachse A betrachteten Reihe zueinander ausgebildet und beabstandet zueinander angeordnet. Auch diese Balken 20 sind in Richtung der Breite der Rückwand 3d betrachtet überlappungsfrei mit den Balken 15 ausgebildet und insbesondere auch beabstandet dazu ausgebildet.In addition, it is provided in this exemplary embodiment that the
Es ist insbesondere auch vorgesehen, dass in Richtung der Längsachse A betrachtet die Balken 11 und 15 jeweils paarweise auf gleicher axialer Lage und somit auf gleicher Lage entlang der Längsachse A betrachtet ausgebildet sind. Vorzugseise gilt dies auch für die Balken 18 und 20 in paarweiser Betrachtung zueinander.In particular, it is also provided that, viewed in the direction of the longitudinal axis A, the
Darüber hinaus sind jedoch die Balken 11 in Richtung der Längsachse A betrachtet versetzt zu den Balken 18 und zu den Balken 20 angeordnet. Darüber hinaus sind auch die Balken 15 in Richtung der Längsachse A betrachtet versetzt zu den Balken 18 und 20 ausgebildet.In addition, however, the
In
Bei dieser Ausgestaltung ist die Struktur 6 entsprechend der Ausbildung in
In
In
Zur weiteren Erläuterung von Ausführungen von Elementkombinationen 8 wird nunmehr auf
Die Elementkombination 8 ist des Weiteren dahingehend spezifiziert, dass sie fünf Balken 11 aufweist. Die Balken 11 weisen eine Breite x1 auf, die abhängig von der Breite der zu erzeugenden Rückwand 3d ist. Alle bisher gemachten Angaben zu den Balken 11 und auch nachfolgend gemachten Angaben zu den Balken 11 treffen entsprechend für die nicht gezeigten Balken 15 dieser Elementkombination 8 zu.The
Die Balken 11 weisen eine größere Breite als die Elemente 9 auf. Sie weisen eine geringere Höhe (Erstreckung in Richtung der Längsachse A) und somit eine geringere Dicke als die Elemente 9 auf.The
Wie zu erkennen ist, ist ein AuĂźenrand 11c eines in der Reihe der Balken 11 letzten beziehungsweise unteren und somit den ersten Balken 11a gegenĂĽberliegenden Balken 11d in unterschiedlicher Lage entlang der Achse A betrachtet als ein AuĂźenrand 9c des in der Reihe der Elemente 9 zweiten Elements 9b.As can be seen, an
Vorzugsweise ist vorgesehen, dass eine Länge einer Längsseite der quadratischen Elemente 9 vorzugsweise zwischen 55 mm und 60 mm, insbesondere 58 mm, beträgt. Insbesondere ist vorgesehen, dass ein in Richtung der Längsachse A bemessener Abstand zwischen Mittelpunkten von benachbarten quadratischen Elementen 9 zwischen 90 mm und 110 mm, insbesondere 100 mm, beträgt.It is preferably provided that a length of a longitudinal side of the
Darüber hinaus ist vorzugsweise vorgesehen, dass eine in Richtung der Längsachse A bemessene Dicke eines Balkens 11 zwischen 20 mm und 22 mm, insbesondere 18 mm, beträgt. Darüber hinaus ist vorzugsweise vorgesehen, dass ein Abstand, der sich in Richtung der Längsachse A bemisst, zwischen zwei benachbarten Balken 11 zwischen 20 mm und 24 mm, insbesondere 22 mm, beträgt.In addition, it is preferably provided that a thickness of a
Bevorzugt ist vorgesehen, dass ein Ausmaß einer Elementkombination 8 in Richtung der Längsachse A betrachtet zwischen 190 mm und 210 mm, vorzugsweise 200 mm, beträgt.It is preferably provided that a dimension of an
In
Auch hier ist vorzugsweise vorgesehen, dass eine Elementkombination 8 fünf Balken 18 aufweist. Eine Breite x2 der Balken 18 ist vorzugsweise wiederum abhängig davon, welche Breite die Rückwand 3b aufweist.Here, too, it is preferably provided that an
Auch hier ist wiederum der Ăśbersichtlichkeit dienend auf der gegenĂĽberliegenden Seite 16 die symmetrische Ausgestaltung der Balken 15 zu den Balken 11 und der Balken 20 zu den Balken 18 nicht gezeigt. Im Ăśbrigen gelten fĂĽr die
Die Elementkombination 8 mit den Elementen 9 und den weiteren Elementen in Form der Balken 11 und 15, gegebenenfalls mit den zusätzlichen Balken 18 und 20, stellen erhabene Elemente dar, die aus der Ebene der Außenseite 5 nach außen tretend gestaltet sind.The
Nachfolgend wird noch die Fertigung der Rückwände mit den Elementkombinationen 8, wie sie in dem bisherigen Ausführungsbeispiel dargelegt wurden, näher erläutert.The manufacture of the rear walls with the
Zur Fertigung des Haushaltskältegeräts 1 ist eine Fertigungsanlage bereitgestellt, welche zumindest ein Fertigungswerkzeug 21, wie es beispielhaft in
Das zentrale mittlere Fertigungsteil 22 umfasst einen Mittelteil 22a und seitlich daran anschlieĂźende Ă„ste 22b, sodass hier eine beidseitige Kammstruktur ausgebildet ist. Das Fertigungsteil 23 umfasst ebenfalls einseitig entsprechende Stege beziehungsweise Ă„ste 23b, die an einem Basisteil 23a sich seitlich erstreckend angeordnet sind. Entsprechend ist das dritte Fertigungsteil 24 ausgebildet, welches ein Basisteil 24a und davon abstehende Ă„ste 24b aufweist. Die Ă„ste 23b und 24b sind wiederum als Kammstruktur gestaltet.The central
Wie in
Bei der Ausgestaltung und Darstellung in
In
Die Fertigungsanlage kann darüber hinaus jedoch auch zusätzlich zu den Fertigungsteilen 22 bis 24 separate Platten 29 und 30 aufweisen, wie sie in
DarĂĽber hinaus ist in
Die Platten 29 und 30 können auch anderweitig geformt sein. Sie können beispielsweise insbesondere an den einander zugewandten Seiten keinen vollständig geradlinigen Verlauf aufweisen, sondern beispielsweise zumindest eine Stufe aufweisen, sodass beispielsweise in einem unteren Bereich die Breite der Platten 29 und 30 größer ist als in einem oberen Bereich dieser Platten 29 und 30. Dadurch können auch ortsspezifisch Abdeckungen von unteren Durchtrittsöffnungen 22c ermöglicht werden, sodass bereichsweise auch dann das Ausbilden von Elementen 9 unterbunden ist.The
- 11
- HaushaltskältegerätHousehold refrigeration device
- 22
- Gehäusecasing
- 33
- AußenbehälterOuter container
- 3a3a
- seitliche Wandside wall
- 3b3b
- seitliche Wandside wall
- 3c3c
- DeckenwandCeiling wall
- 3d3d
- RĂĽckwandBack wall
- 44th
- Foliefoil
- 55
- AuĂźenseiteOutside
- 66
- Strukturstructure
- 77th
- MaschinenraumEngine room
- 88th
- ElementkombinationElement combination
- 99
- eckige Elementeangular elements
- 9a9a
- oberstes quadratisches Elementtop square element
- 9b9b
- oberer AuĂźenrandupper outer edge
- 9c9c
- AuĂźenrandOuter edge
- 1010
- KomponentenComponents
- 1111
- Balkenbar
- 11a11a
- oberer Balkenupper bar
- 11b11b
- AuĂźenrandOuter edge
- 11c11c
- AuĂźenrandOuter edge
- 11d11d
- Balkenbar
- 1212
- MehrzahlPlural
- 1313
- erste Seitefirst page
- 1414th
- MehrzahlPlural
- 1515th
- Balkenbar
- 1616
- zweite Seitesecond page
- 1717th
- MehrzahlPlural
- 1818th
- Balkenbar
- 1919th
- MehrzahlPlural
- 2020th
- Balkenbar
- 2121st
- FertigungswerkzeugManufacturing tool
- 2222nd
- FertigungsteilManufacturing part
- 22a22a
- MittelteilMiddle part
- 22b22b
- Ă„steBranches
- 22c22c
- DurchgangsöffnungenThrough openings
- 2323
- FertigungsteilManufacturing part
- 23a23a
- BasisteilBase part
- 23b23b
- Ă„steBranches
- 2424
- FertigungsteileManufacturing parts
- 24a24a
- BasisteilBase part
- 24b24b
- Ă„steBranches
- 25, 26, 27, 2825, 26, 27, 28
- DurchfĂĽhrungenBushings
- 29, 3029, 30
- Plattenplates
- AA.
- Achseaxis
- x1x1
- Breitewidth
- x2x2
- Breitewidth
Claims (11)
- Rear wall (3d) for a household refrigerator (1), which is embodied at least in regions from board, and which has a structure (6) on an exterior (5) which has elements (9, 11, 15, 18, 20) which are embodied raised from the plane of the exterior (5), wherein the structure (6) has an element combination (8) which, viewed in the direction of a longitudinal axis (A) of the rear wall (3), is embodied repetitively, wherein the element combination (8) has at least one angular, in particular square, element (9, 9a, 9b), characterised in that the element combination (8) has a plurality of elements embodied as beams (11, 15, 18, 20), viewed in the direction of the width of the rear wall (3d), and that an element combination (8) has two angular elements (9, 9a, 9b) which are arranged in series and at a distance from one another in the direction of the longitudinal axis (A), and the element combination (8) has a first plurality (12) of beams (11), in particular five beams, which, on a first side (13) relative to the longitudinal axis (A) are embodied in series adjacent to the angular elements (9, 9a, 9d) and a first beam (11a) in the series is arranged with its outer edge (11b) facing away from the second beam in the series at the same position along the longitudinal axis (A), such as a first angular element (9a) with its outer edge (9b) facing away from the second angular element, and the element combination (8) has a second plurality (14) of beams (15), in particular five beams, which on a second side (16), relative to the longitudinal axis (A), facing the first side (13) are embodied in series adjacent to the angular elements (9, 9a, 9d) and a first beam (15) in the series is arranged with its outer edge facing away from the second beam at the same position along the longitudinal axis (A) as the first angular element (9, 9a, 9d) with its outer edge (9b) facing away from the second angular element (9).
- Rear wall (3d) according to claim 1, characterised in that the element combination (8) with the elements (9, 11, 15, 18, 20) is embodied in symmetry with the longitudinal axis (A).
- Rear wall (3d) according to one of the preceding claims, characterised in that the square element (9, 9a, 9d) has a side length between 50 mm and 65 mm, in particular between 55 mm and 60 mm.
- Rear wall (3d) according to one of the preceding claims, characterised in that the element combination (8) has two angular, in particular square, elements (9, 9a, 9b), which, viewed in the direction of the longitudinal axis (A), are arranged in a series and at a distance from one another and are the same size.
- Rear wall (3d) according to claim 4, characterised in that a distance between centre points of the angular elements (9, 9a, 9d) amounts to between 90 mm and 110 mm, in particular between 98 mm and 102 mm.
- Rear wall (3d) according to one of the preceding claims, characterised in that the beams (11, 15, 18, 20) have a thickness of between 15 mm and 20 mm, in particular between 16 mm and 19 mm, measured in the direction of the longitudinal axis (A).
- Rear wall (3d) according to one of the preceding claims, characterised in that viewed in the direction of the longitudinal axis (A), the beams (11, 15, 18, 20) have a distance between 18 mm and 26 mm, in particular between 20 mm and 24 mm.
- Rear wall (3d) according to one of the preceding claims, characterised in that an element combination (8) has a third plurality (17) of beams (18), which viewed laterally on the first side (13) with respect to the longitudinal axis (A) in the direction of the width of the rear wall (3d), in particular without overlap, is embodied with respect to the first plurality (12) of beams (11), and the third plurality (17) of beams (18) is embodied in the direction of the longitudinal axis (A) offset with respect to the first plurality (17) of beams (11) and has a fourth plurality (19) of beams (20), which viewed laterally on the second side (16) relative to the longitudinal axis (A) in the direction of the width of the rear wall (3d), in particular without overlap, is embodied with respect to the second plurality (14) of beams (15), and the fourth plurality (19) of beams (20) is embodied in the direction of the longitudinal axis (A) offset with respect to the second plurality (14) of beams (15), wherein the beams of the third plurality (17) are embodied in each case at the same position along the longitudinal axis (A) as the beams (20) of the fourth plurality (19).
- Rear wall (3d) according to one of the preceding claims, characterised in that the element combination (8) in the direction of the longitudinal axis (A) has a degree between 180 mm and 220 mm, in particular between 195 mm and 205mm.
- Household refrigerator (1) with a rear wall (3d) according to one of the preceding claims.
- Method for producing a rear wall according to one of claims 1 to 10, of a household refrigerator (1), wherein the production process is carried out by means of a manufacturing system, comprising a manufacturing tool (21), which is embodied to receive or hold the household refrigerator (1) and wherein the manufacturing tool (21) comprises a receiving apparatus, which has a plurality of manufacturing parts (22, 23, 24) which can be moved relative to one another, wherein the manufacturing parts (22, 23, 24) are embodied to mesh with one another in an interlocking manner and form a flat support area, upon which the rear wall (3d) is placed in an intermediate state, with- a central middle manufacturing part (22), which has a tree-like structure, with a trunk-like middle part, on which protruding from both sides are arranged comb elements in the form of arms or branches (22b), wherein a middle part of the central middle manufacturing part (22) furthermore has angular cut-outs and with- two further manufacturing parts (23, 24) arranged in each case on opposing sides of this central middle manufacturing part (22), which have a one-sided comb structure in each case, in which the arms or branches (22b) of the central middle manufacturing part (22) engage, wherein an overlap width or immersion depth can be set by a relative displacement of the manufacturing parts (22, 23, 24) relative to one another and wherein- to manufacture a rear wall (3d) with a minimal predetermined width, the manufacturing parts (22, 23, 24) are arranged in the manufacturing plant so as to engage maximally therein and are thus in a maximally inserted state, so that only the angular cut-outs embodied in the centre part of the central manufacturing part are present as holes, the rear wall (3d) is placed on the manufacturing tool and foam material is then introduced between the rear wall (3d) and an inner container of the household refrigerator (1) and on account of the pressure generated by the thermally insulating foam material on the rear wall (3d), this is accordingly deformed so that that it extends into these angular cut-outs and as a result the angular elements of the element combination (8) are embodied to structure the exterior of the rear wall (3d) and- to manufacture a rear wall (3d) with a larger width compared with the minimal predetermined width, the manufacturing parts (22, 23,24) are extended and positioned to a defined degree so that the desired width of the rear wall (3d) results, so that the intermeshing comb structures no longer intermesh in a sealing or completely covering manner, but openings into the intermeshing combs are then embodied, the rear wall (3d) is placed on the manufacturing tool and foam material is then introduced between the rear wall (3d) and an inner container of the household refrigerator (1) and the rear wall (3d) is pressed both through the angular cut-outs in the middle part of the central manufacturing part and also through the openings, such as are embodied by the extended and intermeshing comb elements of the manufacturing parts, and as a result in addition to angular elements of the element combination (8), beams (11, 15, 18, 20) of the element combination (8) are produced.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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PL15169879T PL2952841T3 (en) | 2014-06-03 | 2015-05-29 | Rear wall for a household refrigerator and household refrigerator with such a rear wall |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014210403.3A DE102014210403A1 (en) | 2014-06-03 | 2014-06-03 | Back wall for a household refrigerator and household refrigeration appliance with such a back wall |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2952841A1 EP2952841A1 (en) | 2015-12-09 |
EP2952841B1 true EP2952841B1 (en) | 2020-11-25 |
Family
ID=53269353
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15169879.2A Active EP2952841B1 (en) | 2014-06-03 | 2015-05-29 | Rear wall for a household refrigerator and household refrigerator with such a rear wall |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2952841B1 (en) |
DE (1) | DE102014210403A1 (en) |
PL (1) | PL2952841T3 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3563100B1 (en) * | 2016-12-28 | 2022-06-08 | Arçelik Anonim Sirketi | A cooling device comprising a body with improved structural alignment |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2402689A1 (en) * | 2010-06-30 | 2012-01-04 | BSH Bosch und Siemens Hausgeräte GmbH | Cooling/freezing device body and method for producing same |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2238022A (en) * | 1937-04-03 | 1941-04-08 | United States Gypsum Co | Insulating material and structure |
EP2771631B2 (en) * | 2011-10-26 | 2020-02-12 | Arçelik Anonim Sirketi | A cooling device comprising a rear wall having an outer surface produced from cellulosic material |
-
2014
- 2014-06-03 DE DE102014210403.3A patent/DE102014210403A1/en active Pending
-
2015
- 2015-05-29 EP EP15169879.2A patent/EP2952841B1/en active Active
- 2015-05-29 PL PL15169879T patent/PL2952841T3/en unknown
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2402689A1 (en) * | 2010-06-30 | 2012-01-04 | BSH Bosch und Siemens Hausgeräte GmbH | Cooling/freezing device body and method for producing same |
Also Published As
Publication number | Publication date |
---|---|
DE102014210403A1 (en) | 2015-12-03 |
EP2952841A1 (en) | 2015-12-09 |
PL2952841T3 (en) | 2021-06-14 |
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