EP1964961A1 - Joint à soufflet pour une machine de traitement du linge - Google Patents

Joint à soufflet pour une machine de traitement du linge Download PDF

Info

Publication number
EP1964961A1
EP1964961A1 EP08002902A EP08002902A EP1964961A1 EP 1964961 A1 EP1964961 A1 EP 1964961A1 EP 08002902 A EP08002902 A EP 08002902A EP 08002902 A EP08002902 A EP 08002902A EP 1964961 A1 EP1964961 A1 EP 1964961A1
Authority
EP
European Patent Office
Prior art keywords
fold
bellows seal
elements
seal according
stabilizing elements
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
EP08002902A
Other languages
German (de)
English (en)
Other versions
EP1964961B1 (fr
Inventor
Matthias Hollenhorst
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 EP1964961A1 publication Critical patent/EP1964961A1/fr
Application granted granted Critical
Publication of EP1964961B1 publication Critical patent/EP1964961B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/26Casings; Tubs
    • D06F37/266Gaskets mounted between tub and casing around the loading opening

Definitions

  • the invention relates to a bellows seal for a laundry treatment machine with a machine housing in which a tub is provided with a rotatably mounted drum therein, and a feed opening arranged in the front of the machine housing, wherein the bellows seal is sealingly attached to both the feed opening and the tub and the bellows seal comprises a swinging fold having an inner, middle and an outer flank section, with at least one stiffening element for influencing the occurring deformation forces.
  • Such a bellows seal is from the DE 103 59 614 A1 known.
  • the unit which consists of a drum with tub, deflects when spinning due to an imbalance in the drum or it oscillates.
  • the bellows seal must join in this movement. It can come to the bellows seal between the housing and unit to a strong wrinkling. The folds can chafe through self-contact, with the result that the door seal is leaking and must be replaced.
  • annular stiffening element is associated with the inner collar ring and here in particular the central flank section of the oscillation fold, which reduces a propagation of deformation forces on the outer flank section or on the inner flank section.
  • This stiffening element is formed as a thickened region in the middle edge portion.
  • stiffening element are known, which are formed in the form of beads in the sealing ring.
  • the invention thus raises the problem of further developing a bellows seal for a laundry treatment machine in such a way that, in particular, the wear effects impairing the service life are prevented.
  • the new solution directly influences the critical area of the swinging fold.
  • the vibrating pleat geometry itself need not be optimized, but it is specifically prevented by resilient stabilizing elements that the flank sections of the swinging fold come to self-contact.
  • These stabilizing elements designed as additional elements can easily be produced in one piece with the swinging fold.
  • the stiffening elements are arranged at least partially radially between the edge sections forming a fold. These thus prevent contact of the substantially parallel flank surfaces with deformation, twist or shear stress of the bellows seal, as the unit moves. In addition, it is achieved that the stiffening elements stabilize the flank surfaces in their position and orientation.
  • the stiffening elements comprise bar-shaped stabilizing elements, which are latticed between the edge sections forming a fold are arranged. In this way, parts of the swinging fold are stabilized, whereby the drape can occur only at predetermined locations and to a limited extent.
  • the stiffening elements comprise cylindrical or sleeve-shaped stabilizing elements. These stabilizing elements are formed in the fold between the flank surfaces and arranged at a distance from each other. In this case, these stabilizing elements can be connected in the fold with each other by means of web elements in an advantageous manner.
  • the shape of the sleeve base can here be circular or polygonal, so that the sleeves can be optimally adapted to the existing space in the fold.
  • the individual sleeve-shaped stabilizing element corresponds in its diameter approximately to the width of the fold or the distance between the substantially parallel flank surfaces. With regard to its height, the sleeve-shaped stabilizing element corresponds approximately to half the fold height or half the height of the fold surface.
  • the stabilizing elements forming the stiffening elements are arranged in the fold where maximum deformation occurs in the operating state of the machine, for example in the range of the 11 to 1 o'clock position and / or laterally in the region of the 8 or 4 o'clock position. According to another embodiment, it can also be provided that the stabilizing elements can be arranged distributed substantially uniformly over the circumference, so that the formation of a fold that is as uniform as possible is formed.
  • FIG. 1 shows in the sectional side view of a laundry treatment machine 1 with a machine housing 2, in which a tub 3 is provided with a rotatably mounted drum 4 therein.
  • the tub 3 is suspended in the housing 2 by means of spring and damping means 16 swinging.
  • a feed opening 5 is arranged, wherein between the feed opening 5 and the tub 3, a bellows seal 6 is arranged. This creates the sealing transition from the tub 3 to the feed opening 5.
  • the bellows seal 6, as in the Figures 2 and 3 clearly recognizable, one Oscillating fold 7 with an inner flank section 8, a middle flank section 9 and an outer flank section 10.
  • stiffening element 11 is provided for influencing the deformation forces occurring.
  • stiffening elements 11 are arranged at least partially radially between the fold forming edge portions 8 and 9, which, in particular, when deformations, twisting or shear stresses occur, touching the substantially parallel flank surfaces 12 and 13 under stress of Prevent bellows seal 6, so that they are stabilized in their position and orientation.
  • the stiffening elements 11, as in the FIG. 2 can be seen here include sleeve-shaped stabilizing elements 14 which are formed in the fold between the flank surfaces 12 and 13.
  • the stabilizing elements 14 are arranged in the fold at a distance A from each other.
  • the stabilizing elements 14 are advantageously influenced when they are interconnected in the fold by means of the illustrated webs 15.
  • the sleeve-shaped stabilizing element 14 corresponds in diameter approximately to the width of the fold or the distance between the substantially parallel flank surfaces 12 and 13.
  • the sleeve-shaped stabilizing element 14 corresponds in height about half of the fold height or half the height of the pleat surface 12, 13.
  • FIG. 3 Figure 2 shows a computer simulation of how the bellows seal 6 deforms under load. It is clear that the oscillatory fold 7 assumes a waveform, the flank surfaces decrease in distance with each other.
  • a representation of three load cases is shown in the individual diagrams 4a, 4b and 4c. It shows the FIG. 4a a non-load case in which the individual stabilizing elements 14 are undeformed.
  • FIG. 4b a pressure loaded situation of the stabilizing elements 14 is shown, wherein in the Figure 4c a situation under train is recognizable.
  • the individual stabilizing elements 14 virtually act as indicated springs in the fold, which can be loaded on both pressure and tension. With their spring stiffness, they thus counteract the wrinkle movement when the tub swings.
  • the stabilizing elements 14 forming the stiffening elements 11 are arranged in the fold, where a maximum deformation occurs in the operating state of the machine.
  • FIG. 5 which represents a laundry treatment machine 1, in which the filling opening extends under a bevel, so that the individual flank sections 8, 9, 10 of the bellows seal 6 at the upper edge of the feed opening 5 are also inclined.
  • the maximum occurs Deformation of the bellows seal 6, so that the stabilizing elements 14 forming the stiffening elements 11 are provided in the fold in this area.
  • the stabilizing elements 14 can be arranged distributed substantially uniformly over the circumference. In some cases, it is advantageous to arrange the stabilizing elements 14 in the lateral region approximately in the 8 or 4 o'clock position.
  • the spring action of these stabilizing elements 14 causes in the radial direction that the folds remain spaced even with larger deformations.
  • the sleeve-shaped stabilizing elements 14 should correspond to the diameter of the width of the swinging fold 7 so as not to restrict the space for wrinkling.
  • the height of the stabilizing elements 14 should be in the order of half the height of the swinging fold 7.
  • the connection by means of webs 15 between the stabilizing elements 14 increases the compression of the elements, the spring action. It also prevents the elements from rubbing against each other.
  • the tubular shape of the stabilizing elements 14 has the further advantage that, for example, in deformations without strong wrinkling the restoring forces of the bellows seal 6 between oscillating unit and machine housing 2 are not too large, because this would adversely affect the stability of the laundry treatment machine 1.
  • the extensive decoupling of the movement of the oscillating unit and the machine housing 2 thus remains guaranteed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
  • Sealing Devices (AREA)
  • Diaphragms And Bellows (AREA)
EP08002902A 2007-02-28 2008-02-16 Joint à soufflet pour une machine de traitement du linge Active EP1964961B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007010214A DE102007010214B3 (de) 2007-02-28 2007-02-28 Faltenbalgdichtung für eine Wäschebehandlungsmaschine

Publications (2)

Publication Number Publication Date
EP1964961A1 true EP1964961A1 (fr) 2008-09-03
EP1964961B1 EP1964961B1 (fr) 2010-04-21

Family

ID=38859723

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08002902A Active EP1964961B1 (fr) 2007-02-28 2008-02-16 Joint à soufflet pour une machine de traitement du linge

Country Status (4)

Country Link
EP (1) EP1964961B1 (fr)
AT (1) ATE465290T1 (fr)
DE (2) DE102007010214B3 (fr)
ES (1) ES2341912T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2692935A1 (fr) * 2012-07-31 2014-02-05 Samsung Electronics Co., Ltd Machine à laver avec un joint d'étanchéité

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011079448A1 (de) * 2011-07-20 2013-01-24 BSH Bosch und Siemens Hausgeräte GmbH Von vorne beschickbare Waschmaschine mit einer Manschette
WO2016015762A1 (fr) * 2014-07-30 2016-02-04 Electrolux Appliances Aktiebolag Machine de buanderie lavante-séchante et soufflet pour machine de buanderie lavante-séchante

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19961463A1 (de) * 1999-12-20 2001-06-21 Bsh Bosch Siemens Hausgeraete Haushaltgerät
US20040103693A1 (en) 2002-11-29 2004-06-03 Kim Jae Kyum Gasket and washing machine using the same
US20050262879A1 (en) * 2004-06-01 2005-12-01 Lg Electronics Inc. Washing machine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10359614A1 (de) * 2003-12-18 2005-07-14 BSH Bosch und Siemens Hausgeräte GmbH Faltenbalgmanschette für Waschmaschinen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19961463A1 (de) * 1999-12-20 2001-06-21 Bsh Bosch Siemens Hausgeraete Haushaltgerät
US20040103693A1 (en) 2002-11-29 2004-06-03 Kim Jae Kyum Gasket and washing machine using the same
US20050262879A1 (en) * 2004-06-01 2005-12-01 Lg Electronics Inc. Washing machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2692935A1 (fr) * 2012-07-31 2014-02-05 Samsung Electronics Co., Ltd Machine à laver avec un joint d'étanchéité
US9732459B2 (en) 2012-07-31 2017-08-15 Samsung Electronics Co., Ltd. Gasket usable with washing machine and washing machine having the same

Also Published As

Publication number Publication date
ATE465290T1 (de) 2010-05-15
EP1964961B1 (fr) 2010-04-21
ES2341912T3 (es) 2010-06-29
DE102007010214B3 (de) 2008-01-31
DE502008000543D1 (de) 2010-06-02

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