EP3611297A1 - Tambour de lavage pour une machine de traitement du linge - Google Patents

Tambour de lavage pour une machine de traitement du linge Download PDF

Info

Publication number
EP3611297A1
EP3611297A1 EP19190069.5A EP19190069A EP3611297A1 EP 3611297 A1 EP3611297 A1 EP 3611297A1 EP 19190069 A EP19190069 A EP 19190069A EP 3611297 A1 EP3611297 A1 EP 3611297A1
Authority
EP
European Patent Office
Prior art keywords
drum
fine structure
laundry
main orientation
essentially
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP19190069.5A
Other languages
German (de)
English (en)
Other versions
EP3611297B1 (fr
Inventor
Jürgen Markgraf
Franz Aring
Heinz-Theo Bellmann
Manfred Buchmann
Andreas Schröder
Andre Treptow
Alexander Wiens
Heinrich Hollenhorst
Wojciech Golabek
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Miele und Cie KG
Original Assignee
Miele und Cie KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Miele und Cie KG filed Critical Miele und Cie KG
Publication of EP3611297A1 publication Critical patent/EP3611297A1/fr
Application granted granted Critical
Publication of EP3611297B1 publication Critical patent/EP3611297B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/02—Rotary receptacles, e.g. drums
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/02—Rotary receptacles, e.g. drums
    • D06F37/04—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a horizontal or inclined axis

Definitions

  • the invention relates to a laundry drum for a laundry treatment machine with a drum jacket of the type mentioned in the preamble of claim 1.
  • Such laundry drums for laundry treatment machines such as washing machines, tumble dryers or combination devices with washing and drying functions, are already known in many embodiments.
  • a laundry drum for a laundry treatment machine with a drum jacket which has structures distributed in the circumferential direction which rise from the cylindrical shape of the drum jacket attached in the laundry drum, the structures being formed from line-shaped elevations which extend along the circumferential line and bulge inwards.
  • the drum jacket known from it has embossments in the form of a honeycomb-shaped arch structure, the honeycomb base surfaces of which are shaped in the direction of the drum exterior and the adjoining edge contours of the honeycomb with their bulge edges are directed towards the drum interior and thus form driver elements for the laundry in the rotating drum.
  • the invention therefore presents the problem of specifying a laundry drum for a laundry treatment machine with a drum jacket, in which the laundry is even better protected against abrasion or the like.
  • the advantage achievable with the invention is, in particular, that the laundry is subjected to less abrasion, that is to say less mechanical stress, during the laundry treatment in the laundry drum.
  • the main orientation of the at least one fine structure means a main orientation of the fine structure in relation to the totality of the fine structure in a partial area or several partial areas of the inside of the drum casing facing the laundry or the entire inside of the drum casing.
  • a particularly advantageous development of the laundry drum according to the invention provides that the at least one fine structure parallel to the main orientation of the fine structure by a roughness depth R Z less than the roughness depth R Z at a 90 ° angle to the main orientation of the fine structure, preferably less than or equal to half the roughness depth R Z is defined at a 90 ° angle to the main orientation of the fine structure, particularly preferably less than or equal to 1/5 of the roughness depth R Z at a 90 ° angle to the main orientation of the fine structure.
  • the main orientation of the at least one fine structure is made even more distinctive.
  • this reduces the roughness of the fine structure in its main orientation.
  • the abrasion of the laundry is further reduced, so that the laundry is treated even better during laundry treatment in the laundry drum.
  • the at least one fine structure according to type, dimensioning, main orientation, number and arrangement can be freely selected within wide suitable limits.
  • An advantageous further development of the laundry drum according to the invention provides, however, that the at least one fine structure is arranged essentially distributed over the entire inside of the drum shell.
  • the invention can be implemented in a particularly simple manner in terms of production technology.
  • the at least one fine structure is distributed only in a partial area or a plurality of partial areas on the inside of the drum jacket.
  • the at least one fine structure can be applied in a targeted manner to a certain partial area or certain partial areas of the inside of the drum shell, in order to convey the laundry located in the laundry drum, for example, in a desired direction.
  • a particularly advantageous development of the aforementioned embodiment provides that the at least one fine structure in several partial areas of the inside of the Drum casing is arranged and at least in two areas in at least one parameter from the group of main orientation of the fine structure, roughness depth R Z parallel to the main orientation of the fine structure and roughness depth R Z at a 90 ° angle to the main orientation of the fine structure from each other. This makes it particularly easy to adapt the laundry drum according to the invention to different requirements and operating conditions.
  • the orientation of the main orientation of the at least one fine structure can be freely selected within wide suitable limits.
  • the at least one fine structure in subareas which differ from one another is gradually changed by a plurality of subareas on the inside of the drum shell in the alignment of the main orientation of the respective fine structure.
  • the at least one fine structure in at least a partial area of the inside of the drum shell or over the entire inside of the drum shell has a main orientation essentially parallel to the circumferential direction of the drum shell or a main orientation essentially at a 45 ° angle to the circumferential direction of the drum shell or has a main orientation essentially at a 90 ° angle to the circumferential direction of the drum shell.
  • a further advantageous development of the laundry drum according to the invention provides that the at least one fine structure in at least one partial area of the inside of the drum jacket or over the entire inside of the drum jacket with a view perpendicular to the inside of the drum jacket altogether a pattern of essentially parallel to each other, essentially shows straight lines, elevations and depressions.
  • the at least one fine structure can be implemented in a simple manner in terms of construction and / or production technology.
  • the at least one fine structure in at least a partial area of the inside of the drum shell or over the entire inside of the drum shell with a view perpendicular to the inside of the drum shell altogether is a pattern of essentially parallel to one another arranged, essentially undulating, elevations and depressions.
  • a combination of the two last-mentioned embodiments of the laundry drum according to the invention is provided, namely that the at least one fine structure in at least a partial area of the inside of the drum casing or over the entire inside of the drum casing with a view perpendicular to the inside of the drum casing as a whole a pattern from im Shows elevations and depressions arranged essentially parallel to one another, essentially rectilinear and undulating.
  • the essentially rectilinear and the essentially undulating elevations and depressions are formed in a repeating arrangement in the at least one fine structure.
  • the essentially straight lines and the essentially undulating elevations and depressions are arranged irregularly with respect to one another.
  • the relative arrangement of the essentially straight and the essentially wave-shaped elevations and depressions in a plurality of partial areas with fine structures can be designed differently from one another at least in two partial areas.
  • the inside of the drum shell only has the at least one fine structure.
  • An advantageous further development of the laundry drum according to the invention provides that the at least one fine structure is at least partially superimposed by a coarse structure in at least a partial area of the inside of the drum jacket or over the entire inside of the drum jacket, the coarse structure having elevations and / or depressions in an area of larger or equal to 0.1 mm, preferably greater than or equal to 0.5 mm, particularly preferably greater than or equal to 1 mm. This improves the entrainment of the laundry in the laundry drum during the laundry treatment in the laundry treatment machine.
  • the coarse structure can only be formed on the inside of the drum shell. However, it is also possible for the coarse structure to be arranged both on the inside of the drum shell facing the laundry and on the outside thereof facing away from the laundry. For example, this can be the case if the laundry drum according to the invention has a very thin material thickness and the coarse structure is produced by embossing the drum jacket.
  • other manufacturing methods known to the person skilled in the art for producing a laundry drum according to the invention with a drum shell which has at least one fine structure and a coarse structure overlying the fine structure are also conceivable. The same applies to the at least one fine structure, which can also be arranged on the outside of the drum casing in addition to the inside of the drum casing.
  • the rough structure can be, for example, a structure according to the prior art mentioned in the introduction.
  • other structures that are meaningful and suitable for the respective individual case are also conceivable as a rough structure.
  • barrel rings or bevels are mentioned here purely by way of example.
  • the barrel rings are at least one ring running in the circumferential direction of the drum shell, the rises, for example, in the direction of the inside of the drum shell from a base surface of the drum shell.
  • the at least one bevel is arranged at an angle to the circumferential direction of the drum shell, for example at an angle of 45 ° to the circumferential direction of the drum shell.
  • FIG. 1 An exemplary embodiment of a laundry drum according to the invention for a laundry treatment machine designed as a tumble dryer is partially shown.
  • the laundry drum has a drum jacket 2 on which two laundry lifters 4 are arranged in a manner known to the person skilled in the art.
  • the drum jacket 2 is made of 1.4016 steel and has a material thickness of approximately 0.35 to approximately 0.5 mm.
  • the drum jacket 2 has a coarse structure 8 on an inner side 6 facing the laundry (not shown), which is arranged distributed over the entire circumference of the drum jacket 2.
  • the coarse structure 8 is designed as an embossing in the form of a honeycomb-shaped arch structure, the honeycomb base surfaces of which are directed towards an outside 10 of the drum shell 2 facing away from the laundry and whose adjoining edge contours of the honeycomb with their bulging edges are directed towards the inside 6 of the drum shell 2 facing the laundry and so, in addition to the laundry lifters 4, form driver elements for the laundry in the rotating laundry drum.
  • the Dome edges rise about 0.5 mm above the honeycomb base of the honeycomb-shaped coarse structure 8. As from the Fig. 1 can be seen, this points in the image plane of Fig. 1 End 12 of the drum shell 2 shown at the rear has no coarse structure 8. Due to the production of the coarse structure 8 by means of embossing and the only low material thickness of the drum casing 2, the coarse structure 8 is also visible on the outside 10 of the drum casing 2 facing away from the laundry.
  • Fig. 2 shows a detail of the drum jacket 2 in the vicinity of one of the laundry lifters 4 in a greatly enlarged, partial representation.
  • Fig. 1 is in Fig. 2 also to see the rough structure 8.
  • a fine structure 14 is indicated as an example in one of the honeycombs of the coarse structure 8.
  • the fine structure 14 in the present exemplary embodiment is essentially distributed over the entire inside 6 of the drum shell 2. Accordingly, the fine structure 14 is not only found in the area of the inside 6 of the drum casing 2, which has the coarse structure 8, but also in the area of the inside 6 of the drum casing 2, which has no coarse structure 8, namely on the in Fig. 1 partially visible end 12 of the drum shell 2.
  • Fig. 1 partially visible end 12 of the drum shell 2.
  • the fine structure 14 has a main orientation, the main orientation of the fine structure 14 being oriented in the circumferential direction of the drum shell 2 of the laundry drum.
  • the circumferential direction and thus also the main orientation of the fine structure 14 are shown in FIGS 1 to 3 each symbolized by an arrow 16.
  • FIG Fig. 3 A detail from the fine structure 14 is shown in FIG Fig. 3 shown greatly enlarged and greatly simplified with a view perpendicular to the inside 6 of the drum shell 2 facing the laundry. See also the Fig. 1 and 2 , It can be clearly seen that the main orientation of the fine structure 14 is aligned in the circumferential direction 16 and the fine structure 14 over the entire inner side 6 of the drum shell 2 with a viewing direction perpendicular to the inner side 6 of the drum shell 2 overall, a pattern of essentially parallel to one another, essentially rectilinear, elevations 18 and depressions 20 shows. See also the Fig. 1 and 2 , The direction of view perpendicular to the inside 6 of the drum shell 2 corresponds to in Fig. 3 the viewing direction perpendicular to the image plane of Fig. 3 ,
  • elevations 18 and the depressions 20 can each have different dimensions. Accordingly, in Fig. 3 Purely exemplary elevations 18 are shown with a larger and a smaller width as well as with a larger and a smaller length. The same applies to the depressions 20 shown, which can also be of different lengths and / or of different widths. It is also conceivable for elevations 18 and / or depressions 20 to be circumferential along the main orientation 16 of the fine structure 14. For example, individual, a plurality or all of the elevations 18 and / or depressions 20 can be designed to run all the way along the main orientation 16 of the fine structure 14. In addition, the elevations 18 and / or depressions 20 of the fine structure 14 can be arranged or arranged diffusely.
  • Section line A drawn in runs at a 90 ° angle to the main orientation 16 of the fine structure 14 and corresponds to the roughness depth Rz of the fine structure 14 at a 90 ° angle to the main orientation 16. See also FIG Fig. 4 , in which a diagram of the roughness depth Rz along the section line A is shown as an example.
  • Section line B drawn runs parallel to the main orientation 16 of the fine structure 14 and corresponds to the roughness depth Rz of the fine structure 14 parallel to the main orientation 16.
  • FIG Fig. 5 a diagram of the roughness depth Rz along the section line B is shown as an example.
  • the roughness depth Rz of the fine structure 14 parallel to the main orientation 16 of the fine structure 14 is smaller than the roughness depth Rz at a 90 ° angle to the main orientation 16 of the fine structure 14, namely approximately half the roughness depth R Z at a 90 ° angle to the main orientation 16 of the fine structure 14.
  • the roughness depth R Z parallel to the main orientation 16 of the fine structure 14 is therefore substantially less than the roughness depth Rz at a 90 ° angle to its main orientation 16. This is also possible by looking at the exemplary diagrams in FIGS 4 and 5 out.
  • the invention is not limited to the exemplary embodiment explained above.
  • the invention can in principle be used advantageously in any type of laundry treatment machine with a laundry drum.
  • use of the invention in washing machines or in a combination device with a washing function and a drying function would also be conceivable.
  • the laundry treatment machine can be both a household appliance and a commercial appliance for professional use.
  • the at least one fine structure is arranged distributed only in a partial area or several partial areas of the inside of the drum jacket. Individual sections can be different from each other have different area sizes. The number and the areal extent of the at least one fine structure is thus variable and can be selected depending on the requirements of the individual case. It is possible that the at least one fine structure is arranged in several partial areas of the inside of the drum shell and at least in two partial areas in at least one parameter from the group of main orientation of the fine structure, roughness depth Rz parallel to the main orientation of the fine structure and roughness depth Rz in 90 ° The angle to the main orientation of the fine structure differs from one another.
  • the main orientation of the at least one fine structure does not necessarily have to be aligned parallel to the circumferential direction of the drum shell.
  • the at least one fine structure in at least a partial area of the inside of the drum casing or over the entire inside of the drum casing can also have a main orientation essentially at a 45 ° angle to the circumferential direction of the drum casing or a main orientation essentially at a 90 ° angle to the circumferential direction of the drum casing ,
  • other angles of the main orientation of the at least one fine structure to the circumferential direction of the drum shell are also conceivable in principle.
  • the at least one fine structure does not have to show a pattern of elevations and depressions which are arranged essentially parallel to one another and run essentially in a straight line, as viewed perpendicularly to the inside of the drum shell.
  • the at least one fine structure in at least one partial area of the inside of the drum casing or over the entire inside of the drum casing with a viewing direction perpendicular to the inside of the drum casing as a whole to consist of a pattern which is arranged essentially parallel to one another and runs essentially in a wave shape. Shows elevations and deepenings.
  • a combination of elevations and depressions arranged essentially parallel to one another, essentially rectilinear and undulating, is also conceivable, namely that the at least one fine structure in at least a partial area of the inside of the drum casing or over the entire inside of the drum casing with a direction of view perpendicular to the
  • a pattern of elevations and depressions arranged essentially parallel to one another, essentially rectilinear and undulating is shown.
  • the elevations and the depressions of the at least one fine structure can each have different dimensions. Accordingly, surveys with a larger and a smaller width as well as with a larger and a shorter length are possible. The same applies to the depressions, which can also be of different lengths and / or of different widths. It is also conceivable for elevations and / or depressions to be circumferential along the main orientation of the respective fine structure. For example, individual, a plurality or all of the elevations and / or depressions can be designed to run all the way along the main orientation of the respective fine structure. In addition, the elevations and / or depressions of the at least one fine structure can be arranged or arranged diffusely.
  • the drum casing does not necessarily have to have a rough structure.
  • the drum shell can also be designed without any rough structure.
  • Analogous to the fine structure it is also conceivable that the drum shell has several partial areas and has a coarse structure that is different from one another in at least two of the partial areas.
  • the at least one coarse structure can be freely selected in wide suitable limits according to type, function, shape, arrangement, number, orientation and dimensions.
  • the drum shell can essentially have only a fine structure or a fine structure with a superimposed coarse structure or at least a partial area with only a coarse structure or at least a partial area without any structure on its entire inside or in at least a partial area from the inside thereof.
  • the outside of the drum shell facing away from the laundry during the laundry treatment also has at least one fine structure and / or at least one rough structure.
  • the at least one fine structure and / or the at least one coarse structure on the outside of the drum shell can essentially correspond to the at least one fine structure and / or the at least one coarse structure on the inside of the drum shell or as a negative to the at least one fine structure and / or the at least one a coarse structure can be formed on the inside of the drum shell or show a different configuration from the at least one fine structure and / or the at least one rough structure on the inside of the drum shell.
  • the drum jacket of the laundry drum according to the invention is made of a ferritic steel, in particular a chrome steel.
  • the material thickness of the drum casing is less than or equal to 0.5 mm, preferably less than or equal to 0.35 mm.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Treatment Of Fiber Materials (AREA)
EP19190069.5A 2018-08-13 2019-08-05 Tambour de lavage pour une machine de traitement du linge Active EP3611297B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018119621.0A DE102018119621A1 (de) 2018-08-13 2018-08-13 Wäschetrommel für eine Wäschebehandlungsmaschine

Publications (2)

Publication Number Publication Date
EP3611297A1 true EP3611297A1 (fr) 2020-02-19
EP3611297B1 EP3611297B1 (fr) 2021-07-07

Family

ID=67551075

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19190069.5A Active EP3611297B1 (fr) 2018-08-13 2019-08-05 Tambour de lavage pour une machine de traitement du linge

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Country Link
EP (1) EP3611297B1 (fr)
DE (1) DE102018119621A1 (fr)
ES (1) ES2882055T3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021122654A1 (de) 2021-09-01 2023-03-02 Miele & Cie. Kg Trommel für einen Wäschetrockner und Wäschetrockner

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1293594A1 (fr) 2001-09-13 2003-03-19 Miele & Cie. GmbH & Co. Tambour pour une sèche-linge
EP1964960A2 (fr) * 2007-02-28 2008-09-03 Samsung Electronics Co., Ltd. Machine à laver améliorant l'efficacité du lavage
DE102008009141A1 (de) * 2008-02-14 2009-08-27 BSH Bosch und Siemens Hausgeräte GmbH Wäschetrommel für eine Wäschebehandlungsmaschine
EP2235246B9 (fr) 2008-01-29 2011-12-21 BSH Bosch und Siemens Hausgeräte GmbH Tambour de lavage pour une machine de traitement du linge
JP2015156881A (ja) * 2014-02-21 2015-09-03 株式会社東芝 洗濯機

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1293594A1 (fr) 2001-09-13 2003-03-19 Miele & Cie. GmbH & Co. Tambour pour une sèche-linge
EP1964960A2 (fr) * 2007-02-28 2008-09-03 Samsung Electronics Co., Ltd. Machine à laver améliorant l'efficacité du lavage
EP2235246B9 (fr) 2008-01-29 2011-12-21 BSH Bosch und Siemens Hausgeräte GmbH Tambour de lavage pour une machine de traitement du linge
DE102008009141A1 (de) * 2008-02-14 2009-08-27 BSH Bosch und Siemens Hausgeräte GmbH Wäschetrommel für eine Wäschebehandlungsmaschine
JP2015156881A (ja) * 2014-02-21 2015-09-03 株式会社東芝 洗濯機

Also Published As

Publication number Publication date
ES2882055T3 (es) 2021-12-01
EP3611297B1 (fr) 2021-07-07
DE102018119621A1 (de) 2020-02-13

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