EP0621364B1 - Arrangement in einer Waschmaschine - Google Patents

Arrangement in einer Waschmaschine Download PDF

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Publication number
EP0621364B1
EP0621364B1 EP94850057A EP94850057A EP0621364B1 EP 0621364 B1 EP0621364 B1 EP 0621364B1 EP 94850057 A EP94850057 A EP 94850057A EP 94850057 A EP94850057 A EP 94850057A EP 0621364 B1 EP0621364 B1 EP 0621364B1
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EP
European Patent Office
Prior art keywords
washing machine
sound
front piece
machine according
tub
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.)
Expired - Lifetime
Application number
EP94850057A
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English (en)
French (fr)
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EP0621364A1 (de
Inventor
Stig Göran Uhlin
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.)
Electrolux AB
Original Assignee
Electrolux AB
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Publication date
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Application filed by Electrolux AB filed Critical Electrolux AB
Publication of EP0621364A1 publication Critical patent/EP0621364A1/de
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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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/12—Casings; Tubs
    • D06F39/14—Doors or covers; Securing means therefor
    • 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
    • D06F37/42—Safety arrangements, e.g. for stopping rotation of the receptacle upon opening of the casing door

Definitions

  • the present invention relates to laundry washing machines of the kind comprising a cabinet having side walls, top and bottom walls, a back piece and a front piece, wherein the front piece has an opening for a door provided for the closure of an opening in a tub, said tub together with a drum, rotatably journalled therein, and a drive motor, provided for rotating of said drum, forming an assembly which by means of spring means and vibration damping means is free-swingingly suspended in the cabinet such that adjacent to the front piece, between the cabinet and the tub an annular gap is formed which surrounds the door.
  • the assembly constitutes a free-swinging unit which is completely disconnected from the rest of the cabinet.
  • a door is provided and in this type of machine the door is arranged to close directly an opening in the tub.
  • a corresponding opening is provided in the cabinet just in front of the door and adjacent to the opening the space between the front piece and the tub must be of sufficient size to permit the latter, when the machine is operating, to move without contacting the cabinet.
  • the distance amounts to a few centimeters and, at least, the distance should amount to 3 cm.
  • the door is disposed on the front piece of the cabinet and the opening in the tub is connected to the opening in the front piece by means of an annular gasket, usually a flexible bellows made of rubber.
  • an annular gasket usually a flexible bellows made of rubber.
  • no annular gap is present which, like in the embodiment described above, connects the interior of the machine to the surrounding atmosphere involving problems caused by escaping noise.
  • a sound absorbent be disposed on the inside of the cabinet.
  • a viscous elastic material can be used which is sprayed onto the interior walls of the cabinet, preferably the front piece and the side walls.
  • Such a washing machine is described in the publication JP-A-63197495.
  • a laundry washing machine which comprises a cabinet 10 having a front piece 11, a back piece 12, side walls 13, 14, a cover 15 and a base plate 16.
  • the cabinet contains a tub, a laundry supporting drum rotatably disposed inside the tub and a drive motor for rotating the drum.
  • the last-mentioned parts form an assembly 17 which, in a way not discussed in detail, is free-swingingly suspended in the cabinet by means of spring means and vibration damping means.
  • the washing machine is of the kind which comprises a door 18 directly closing an opening in the tub by which access is given to the interior of the drum and the laundry disposed there.
  • an opening 19 is provided in the front piece and adjacent to the opening the distance between the front piece 11 and the assembly 17 has been selected such that also large swinging movements are permitted without the assembly contacting the cabinet.
  • a common value of the distance between the front piece (11) and the assembly 17 is about 30 mm.
  • Parts 20, 21, 22, 23 of the front piece have been bent into the opening 19, which is of rectangular shape, forming a frame.
  • a rectangular metal plate 24 is fixed to front of the tub and has an opening for the door 18.
  • the plate 24 is provided with edge portions 25, 26, 27, 28 which have been bent to form a corresponding frame arranged to cooperate with the frame disposed on the front piece for the forming of meander-shaped passages 29 interconnecting the interior of the cabinet and the ambient athmosphere.
  • the passages are disposed above, below and at both sides of the opening 19.
  • the passages are identical and, hence, it will be sufficient to describe one of them and the passage chosen is situated in the area marked by a ring in Fig. 2.
  • the plate 24 with the edge portions 25, 26, 27, 28 can be made of plastics material.
  • a sound absorbent 31 is fixed on the front piece 11 so as to completely fill the space between a frame forming wall 20, 21, 22, 23 and the associated side wall, such as the side wall 13 in Figs. 3 and 4.
  • the sound absorbent 31 may consist of mineral wool.
  • the bent edge portions of the plate 24 on the tub may have a relatively limited extension and the wall portions forming the frame may consist of a flexible strip 32 made of plastics material or rubber and provided with a enlarged edge 32a having a slot-shaped recess 33 into which the edge portion 25a is arranged to be introduced.
  • the edge portions such as edge portion 20a bent from the front piece and forming the frame, may have a length which is reduced as compared to the embodiment of Figs. 1 and 2.
  • the edge portions may be provided with a mainly perpendicularly bent end 20b arranged to be inserted in a slot-shaped recess 34 provided in an enlarged end portion 35a of a flexible strip 35 made of plastics material or rubber.
  • the embodiments according to Figs. 3 and 4 permit that the gap 36 required in the meander-shaped passages around the opening 19 due to the movement of the assembly 17 can be reduced as the flexible strip can resiliently fold back upon a possible contact with adjacent machine parts on the assembly 17.
  • the number of wall portions 25c, 25d and 20c, 20d, respectively, on the frames forming the meander-shaped passages have been doubled, lengthening the passage and making it even more difficult for the noise to pass to the surrounding atmosphere.
  • the number of bendings provided in the meander-shaped sound-trap has to be weighed against the drawback caused by the increased outer dimensions of the cabinet that might be needed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Vibration Prevention Devices (AREA)

Claims (10)

  1. Waschmaschine mit einem Gehäuse (10), bestehend aus Seitenwänden (13, 14), einer oberen und einer Bodenwand (15, 16), einer Rückwand (12) und einer Vorderwand (11), wobei die Vorderwand (11) eine Öffnung (19) für eine Tür (18) aufweist, die so angeordnet ist, daß sie eine Öffnung in einem Behälter verschließt, und der Behälter zusammen mit einer Trommel, welche rotierend in dem Behälter gelagert ist, und einem Antriebsmotor, der zum Drehen der Trommel vorgesehen ist, eine Einheit (17) bildet; die freischwingend in dem Gehäuse (10) mittels Federn und vibrationsdämpfenden Mitteln so aufgehängt ist, daß an der Vorderwand (11) zwischen dem Gehäuse (10) und dem Behälter ein ringförmiger Spalt (36) gebildet wird, welcher die Tür (18) umgibt, sowie eine lärmdämpfende Einrichtung zur Verminderung des Lärms, der von der Maschine während des Betriebes erzeugt wird, vorgesehen ist, dadurch gekennzeichnet, daß die lärmdämpfende Einrichtung eine Lärmfalle vom Labyrinthtyp (20, 21, 22, 23; 25, 26, 27, 28) ist, welche im ringförmigen Spalt (36), der die Tür (18) umgibt, angeordnet ist.
  2. Waschmaschine nach Anspruch 1, dadurch gekennzeichnet, daß die Lärmfalle vom Labyrinthtyp (20, 21, 22, 23; 25, 26, 27, 28) Wandteile (25, 20 usw.) umfaßt, welche hauptsächlich parallel angeordnet sind, und einen mäanderförmigen Schalldurchlaß (29) bilden, der sich vom Inneren der Maschine über den ringförmigen Spalt (36) in die umgebende Atmosphäre erstreckt.
  3. Waschmaschine nach Anspruch 2, dadurch gekennzeichnet, daß die Vorderwand (11) mit Abkantungen (20, 21, 22, 23) versehen ist, welche um die Öffnung (19) in der Vorderwand vorgesehen sind, um einen ersten Rahmen zu bilden, welcher eine im wesentlichen viereckige Form aufweist, und daß ein weiterer Rahmen (25, 26, 27, 28) an der Außenseite des Behälters vorgesehen ist, welcher den ersten Rahmen (20, 21, 22, 23) umgibt, und die Lärmfalle vom Labyrinthtyp bildet.
  4. Waschmaschine nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß der Abstand zwischen den beiden parallelen Wandteilen (25, 20 usw.) mindestens etwa 30 mm beträgt.
  5. Waschmaschine nach einem oder mehreren der Ansprüche 2 bis 4, dadurch gekennzeichnet, daß der Schalldurchlaß eine mäanderförmige Lärmfalle vom Labyrinthtyp ist, die durch eine Anzahl von parallel angeordneten Wandteilen (25c, 25d; 20c, 20d usw.) gebildet wird.
  6. Waschmaschine nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Lärmfalle ein Lärmabsorbens (31) enthält.
  7. Waschmaschine nach Anspruch 6, dadurch gekennzeichnet, daß das Lärmabsorbens (31) eine Schicht von lärmabsorbierendem Material umfaßt, die an der Vorderwand (11) so befestigt ist, daß sie sich von dem an der Vorderwand (11) befindlichen und die Öffnung (19) umgebenden Rahmen (20, 21, 22, 23) bis zur entsprechenden anschließenden Wand (25 usw.) des Gehäuses (10) erstreckt.
  8. Waschmaschine nach einem oder mehreren der Ansprüche 3 bis 7, dadurch gekennzeichnet, daß der am Behälter vorgesehene Rahmen durch Abkantungen (25a usw.) relativ geringer Länge gebildet wird, wobei ein flexibler Streifen (32) an der entsprechenden Abkantung (25a) befestigt ist und ein Wandteil der Lärmfalle vom Labyrinthtyp bildet.
  9. Waschmaschine nach einem oder mehreren der Ansprüche 3 bis 8, dadurch gekennzeichnet, daß die Vorderwand (11) mit Abkantungen (20a usw.) relativ geringer Länge versehen ist, und ein flexibler Streifen (35), welcher an der entsprechenden Abkantung (20a usw.) befestigt ist, ein Wandteil der Lärmfalle vom Labyrinthtyp bildet.
  10. Waschmaschine nach Anspruch 8 oder 9, dadurch gekennzeichnet, daß der flexible Streifen (32; 35) mit einem verdickten Endbereich (32a; 35a) versehen ist, welcher eine schlitzförmige Ausnehmung (33, 34) aufweist, die so ausgebildet ist, daß sie mit der Abkantung (25a; 20b) kooperiert.
EP94850057A 1993-04-22 1994-04-20 Arrangement in einer Waschmaschine Expired - Lifetime EP0621364B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9301353A SE501151C2 (sv) 1993-04-22 1993-04-22 Tvättmaskin med ljuddämpande organ av labyrinttyp runt luckan
SE9301353 1993-04-22

Publications (2)

Publication Number Publication Date
EP0621364A1 EP0621364A1 (de) 1994-10-26
EP0621364B1 true EP0621364B1 (de) 1997-07-16

Family

ID=20389675

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94850057A Expired - Lifetime EP0621364B1 (de) 1993-04-22 1994-04-20 Arrangement in einer Waschmaschine

Country Status (3)

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EP (1) EP0621364B1 (de)
DE (1) DE69404204T2 (de)
SE (1) SE501151C2 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108691161B (zh) * 2017-04-11 2021-12-10 青岛海尔洗涤电器有限公司 一种滚筒洗衣机用门封结构及滚筒洗衣机

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0822358B2 (ja) * 1988-06-09 1996-03-06 松下電器産業株式会社 洗濯機
JPH0397498A (ja) * 1989-09-11 1991-04-23 Matsushita Electric Ind Co Ltd 洗濯機

Also Published As

Publication number Publication date
EP0621364A1 (de) 1994-10-26
SE9301353L (sv) 1994-10-23
SE501151C2 (sv) 1994-11-28
DE69404204D1 (de) 1997-08-21
DE69404204T2 (de) 1998-01-22
SE9301353D0 (sv) 1993-04-22

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