EP3748060A1 - Un tambour pour un appareil de traitement du linge et un procédé pour fabriquer duquel - Google Patents

Un tambour pour un appareil de traitement du linge et un procédé pour fabriquer duquel Download PDF

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Publication number
EP3748060A1
EP3748060A1 EP20174737.5A EP20174737A EP3748060A1 EP 3748060 A1 EP3748060 A1 EP 3748060A1 EP 20174737 A EP20174737 A EP 20174737A EP 3748060 A1 EP3748060 A1 EP 3748060A1
Authority
EP
European Patent Office
Prior art keywords
drum
flange
welded connections
area
base
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.)
Withdrawn
Application number
EP20174737.5A
Other languages
German (de)
English (en)
Inventor
Steffen Lasner
Robert Austermann
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 EP3748060A1 publication Critical patent/EP3748060A1/fr
Withdrawn legal-status Critical Current

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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
    • D06F37/04—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a horizontal or inclined axis

Definitions

  • the invention relates to a drum device with a drum for a laundry treatment machine of the type mentioned in the preamble of claim 1 and a method for its production.
  • the known drum devices with a drum have, for the rotatable mounting of the drum on a frame of the laundry treatment machine, a drum flange connected to the drum in a force-transmitting manner, the drum comprising a drum base and a drum shell which delimit a laundry treatment space of the drum.
  • the invention thus presents the problem of specifying a drum device with a drum for a laundry treatment machine and a method for producing a drum device in which the drum device can be implemented in a simpler manner.
  • this problem is solved by a drum device with the features of claim 1, which is characterized in that the drum flange and the drum are connected to one another in a force-transmitting manner by means of a plurality of welded connections. Furthermore, this problem is solved by a method for producing a drum device having the features of patent claim 8.
  • the advantage that can be achieved with the invention is in particular that the drum device according to the invention can be implemented in a simpler manner. Due to the welded connection of the drum and the drum flange of the drum device according to the invention, instead of screw connections or the like, on the one hand the number of components and thus the storage for the drum device according to the invention and its manufacture is simplified. On the other hand, better power transmission between the drum on the one hand and the drum flange on the other side is made possible by means of the welded connections. Furthermore, the production is more tolerant of deviations in the dimensions of the individual components of the drum device according to the invention and their relative alignment to one another. Such tolerances can be more easily compensated and / or compensated for by means of welding due to the connection between the drum and the drum flange.
  • the type, number, material, dimensioning, welding process, arrangement and use of an additional wire can be freely selected within wide, suitable limits.
  • An advantageous development of the drum device according to the invention provides that the welded connections are each arranged in a region of the drum facing the drum shell. This improves the power transmission between the drum on the one hand and the drum flange on the other.
  • An advantageous development of the aforementioned embodiment of the drum device according to the invention provides that in the area facing the drum shell, a connection area between the drum shell and the drum base of the drum is formed, the welded connections each in a contact area of the drum flange with the connection area, preferably on one of the Side of the respective contact area facing away from the drum base are arranged.
  • the power transmission between the drum on the one hand and the drum flange on the other hand is further improved.
  • the force-transmitting connection between the drum and the drum flange is more robust and therefore more durable.
  • the connecting area has a greater material thickness compared to the drum base and the drum shell.
  • the area of the drum in which the welded connections are arranged is reinforced, so that the force-transmitting connection between the drum and the drum flange is arranged in a very stable cross section of the drum device.
  • An advantageous development of the aforementioned embodiment of the drum device according to the invention provides that a press connection is formed in the contact area between the drum and the drum flange in addition to the welded connections.
  • the force-transmitting connection between the drum is on one side and the drum flange on the other hand further improved.
  • the press connection between the drum and the drum flange can be used, for example, for pre-fixing before the welded connections are made.
  • an advantageous development of the method according to the invention provides that a press connection is first produced in the contact area between the drum and the drum flange prior to the production of the welded connections.
  • the drum flange is designed as a star support, preferably as a three-armed star support, the welded connections or the welded connections and the press connection being formed at the free ends of the star support.
  • the drum flange can be implemented in a material-saving and thus cost-effective manner.
  • the power transmission between the drum and the drum flange is improved in a structurally simple manner by means of the welded connections.
  • FIGs. 1 to 3 is an exemplary embodiment of the drum device according to the invention with a drum for a laundry treatment machine.
  • the drum device 2 with a drum 4 is designed to be suitable for a laundry treatment machine (not shown).
  • the laundry treating machine is in the present embodiment designed as a washing machine for the household.
  • embodiments of the drum device according to the invention for other laundry treatment machines, for example laundry dryers, and for professional use, that is to say for commercial laundry treatment machines, are also conceivable.
  • the drum device 2 has a drum flange 6 connected to the drum 4 in a force-transmitting manner for the rotatable mounting of the drum 4 on a frame of the laundry treatment machine (not shown), the drum 4 comprising a drum base 8 and a drum shell 10 which delimit a laundry treatment space 12 of the drum 4.
  • the laundry treatment room 12 is in the Fig. 3 shown.
  • the drum flange 6 and the drum 4 are connected to one another in a force-transmitting manner by means of three welded connections 14.
  • the welded connections 14 are each arranged in an area of the drum 4 facing the drum jacket 10, a connection area 16 being formed between the drum jacket 10 and the drum base 8 of the drum 4 in the area facing the drum jacket 10, and the welded connections 14 are each arranged in a contact area 18 of the drum flange 6 with the connection area 16, namely on a side of the respective contact area 18 facing away from the drum base 8.
  • the drum device 2 is shown in an enlarged, partial representation in a sectional side view in the area of one of the welded connections 14.
  • the two further connection areas 16 with the welded connections 14 corresponding to them are designed identically, so that in this regard the explanations of FIG Fig. 3 is referred.
  • the connecting area 16 has a greater material thickness. This is because, in the present exemplary embodiment, the drum shell 10 and the drum base 8 are positively connected to one another in the connecting area 16 by means of flanging. See the Fig. 3 . Correspondingly, there is an accumulation of material in the connecting area 16 and thus a very stable cross section for the power transmission between the drum 4 and the drum flange 6 by means of the welded connections 14.
  • connection area 16 has a section 20 protruding in the direction of the drum flange 6 beyond the drum base 8, the contact areas 18 of the drum flange 6 with the connection area 16 being arranged in each case in the section 20 protruding beyond the drum base 8.
  • a press connection is formed in addition to the welded connections 14. The press connection is explained in more detail below.
  • the drum flange 6 is designed as a star support, namely as a three-armed star support, the welded connections 14 and the press connection being formed at the free ends of the star support 6. See in particular the Fig. 2 .
  • the prefabricated drum 4 with the drum flange 6 designed as a support star is first pre-attached by means of a press connection, the drum 4 and the drum flange 6 are therefore prefixed to one another.
  • the press connection between the drum flange 6 and the section 20 of the connection area 16 projecting beyond the drum base 8 is first established before the welded connections 14 are made.
  • the press connection is thus formed by means of the contact areas 18 already explained above.
  • the drum 4 and the drum flange 6 are now pre-fixed by means of the aforementioned press connection.
  • the welded connections 14 are then produced by means of laser welding, for example by removing material from the drum flange 6 and / or from the drum 4.
  • laser welding for example by removing material from the drum flange 6 and / or from the drum 4.
  • an inclined laser coupling during laser welding makes it possible to bridge certain welding gaps in the desired manner by means of the material removal.
  • the invention is not restricted to the exemplary embodiment explained.
  • the invention can also be used advantageously in drum devices for other laundry treatment machines, such as laundry dryers, and for commercial devices for professional use. The same applies to the process according to the invention for their production.
  • welded connections can also be produced using filler wire. Accordingly, there is a wide range of applications for the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
EP20174737.5A 2019-06-05 2020-05-14 Un tambour pour un appareil de traitement du linge et un procédé pour fabriquer duquel Withdrawn EP3748060A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019115173.2A DE102019115173A1 (de) 2019-06-05 2019-06-05 Trommelvorrichtung für eine Wäschebehandlungsmaschine und Verfahren zu deren Herstellung

Publications (1)

Publication Number Publication Date
EP3748060A1 true EP3748060A1 (fr) 2020-12-09

Family

ID=70736760

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20174737.5A Withdrawn EP3748060A1 (fr) 2019-06-05 2020-05-14 Un tambour pour un appareil de traitement du linge et un procédé pour fabriquer duquel

Country Status (2)

Country Link
EP (1) EP3748060A1 (fr)
DE (1) DE102019115173A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1388731A (en) * 1971-05-28 1975-03-26 Zanussi A Spa Industrie Drum for a washing machine or dryer
DE2432465A1 (de) * 1974-07-06 1976-01-15 Thielmann Geb Ag Trommelwaschmaschine
DE3041506A1 (de) * 1980-11-04 1982-06-09 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Trommel fuer eine stirnbeschickbare trommelwaschmaschine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1388731A (en) * 1971-05-28 1975-03-26 Zanussi A Spa Industrie Drum for a washing machine or dryer
DE2432465A1 (de) * 1974-07-06 1976-01-15 Thielmann Geb Ag Trommelwaschmaschine
DE3041506A1 (de) * 1980-11-04 1982-06-09 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Trommel fuer eine stirnbeschickbare trommelwaschmaschine

Also Published As

Publication number Publication date
DE102019115173A1 (de) 2020-12-10

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