EP3546634B1 - Cuff and laundry treatment device - Google Patents

Cuff and laundry treatment device Download PDF

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Publication number
EP3546634B1
EP3546634B1 EP19162586.2A EP19162586A EP3546634B1 EP 3546634 B1 EP3546634 B1 EP 3546634B1 EP 19162586 A EP19162586 A EP 19162586A EP 3546634 B1 EP3546634 B1 EP 3546634B1
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EP
European Patent Office
Prior art keywords
cuff
loading
contact side
elevation
opening
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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EP19162586.2A
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German (de)
French (fr)
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EP3546634A1 (en
Inventor
Robert Alisch
Christopher Heine
Mark Sauer
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BSH Hausgeraete GmbH
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BSH Hausgeraete GmbH
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Publication date
Application filed by BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Priority to PL19162586T priority Critical patent/PL3546634T3/en
Publication of EP3546634A1 publication Critical patent/EP3546634A1/en
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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
    • D06F37/26—Casings; Tubs
    • D06F37/266—Gaskets mounted between tub and casing around the loading opening
    • 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
    • D06F58/00—Domestic laundry dryers
    • D06F58/20—General details of domestic laundry dryers 

Definitions

  • the invention relates to a cuff according to the preamble of claim 1 and a laundry treatment device according to the preamble of claim 8.
  • laundry treatment device is to be understood as a classic washing machine as well as a so-called washer-dryer that performs the functions of a washing machine and a tumble dryer combined.
  • a sleeve and a washing machine of the type mentioned are known, which has a machine housing with a front loading opening and a tub received in this. Between an opening of the tub and the loading opening, a hose-like sleeve is arranged in a liquid-tight manner, which sleeve forms a loading channel. At its end region on the loading opening side, the cuff has a sealing lip with a contact side which lies against a loading door in a sealing manner when this is in a position closing the loading opening.
  • the DE 10 2015 216 363 A1 suggest that a door gap formed between the loading door and the housing-side boundary walls is enlarged at least in a lower partial area.
  • a cuff and a laundry treatment device of the type mentioned at the outset also go from the DE 10 2015 204 327 A1 out, which describes a household appliance for the care of laundry items with a housing, a loading opening in the front of the housing that can be closed by a loading door, a tub arranged in the housing and an annular sealing collar that has a loading channel between the loading opening and an associated opening of the tub forms.
  • the sleeve has a sealing lip with a contact side that is in contact with this when the loading door is closed.
  • the sealing lip is provided on a lower partial circumference of its ring shape with a safety catch structure for an item of laundry.
  • WO 2014/021 614 A1 discloses a washing machine comprising a housing having a front surface frame through which an opening is formed, a door attached to the housing to open and close the opening, a tub disposed in the housing, a A drum rotatably disposed in the tub and a seal connecting the tub to the face frame to prevent vibration of the tub from being transmitted to the face frame when the drum rotates.
  • the gasket has a body with an opening configured to receive a portion of the door and a peripheral part surrounding the opening, and a plurality of reinforcing ribs spaced from each other in a circumferential direction of the peripheral part.
  • Each reinforcing rib has a protruding portion of the peripheral part, and the inner surface of the peripheral part has a recessed portion corresponding to the protruding portion.
  • Each reinforcement rib has a predetermined width in a circumferential direction of the peripheral part, and at least a portion of the reinforcement rib extends along the peripheral part in the axial direction of the drum.
  • the object of the present invention is to implement a reliable door opening function, particularly in so-called front-loading laundry treatment machines.
  • the retaining force exerted by the sealing lip resting on the loading door should be reproducible and as low as possible.
  • the contact side of the cuff has a surface structure which comprises at least one elevation running around the circumference.
  • the retaining force of the sealing lip acting on the loading door is significantly reduced while the sealing function continues to be guaranteed.
  • the sealing lip only comes into contact with separate and therefore clearly defined contact zones Body contact with the loading door.
  • the loading door comprises an inwardly extending door body made of window glass (a so-called porthole) which comes into contact with the sealing lip, the retaining force can be set precisely and reproducibly without increasing the production cost of the sleeve.
  • the contact side of the sleeve has a surface structure comprising two projections running around the circumference, which are spaced apart in the radial direction by at least one depression. This then advantageously ensures the sealing function, in particular through the formation of a labyrinth, with a flat body contact of the contact side of the Cuff can be avoided.
  • the elevations do not necessarily have to be completely circumferential (i.e. as a closed ring shape), as long as suitable measures - such as, for example, elevations offset in parallel in the circumferential direction or elevations configured in a wave or meander shape - ensure a sufficient sealing function in the axial direction. At least one or more or all of the elevations are preferably designed in a closed ring shape.
  • At least one elevation has a triangular shape in the profile cross-section, the triangular shape extending with a tip away from the contact side.
  • At least one elevation has a rectangular shape in the profile cross-section.
  • a preferred embodiment of the invention provides that at least one elevation in the profile cross section has a parabolic shape, the apex of which extends away from the contact side.
  • An embodiment of the invention is further preferred, according to which at least one elevation has a shark skin profile in the profile cross-section.
  • an elevation in the profile cross section has a sinusoidal shape, the upper apex of which extends away from the contact side.
  • the contact surface is significantly reduced compared to an unstructured surface of the sleeve, whereby the contact zone and the retention force required for a sealing effect can advantageously be set precisely by selecting one of the proposed profile cross-sections and the geometric dimensions of the profile cross-section.
  • a sinusoidal profile cross-section enables particularly gentle closing of the Loading door allows. That is, the force to be applied during the closing of the loading door or its change over the closing path is reduced compared to the other embodiments or an embodiment without a surface structure according to the invention.
  • only the force component is considered which is caused by the deformation of the contact side of the cuff in the contact zone.
  • FIG. 1 shows schematically in longitudinal section a detail from the front area of a laundry treatment appliance 1 with an appliance housing 2 which has a loading opening 3 (loading and unloading opening) on the front.
  • a tub 4 is arranged in the housing 2, which, together with other components assigned to the tub 4, is mounted in the housing 2 in a swinging manner by means of spring and damping elements not shown here.
  • a laundry drum 5 is arranged, which is rotatably mounted about an axis of rotation 6 and the front opening 8 of which is aligned with the loading opening 3 so that laundry can be loaded into and removed from the laundry drum 5.
  • a sealing sleeve 9 is arranged between the loading opening 3 and the opening 8, which is hollow-cylindrical and connects the two openings 3 and 8 to one another in a liquid-tight manner.
  • the cuff 9 is connected to the tub 4 with a connection area 9a and to the housing 2 with its other connection area 9b.
  • the cuff 9 thus forms a loading channel 10 leading from the loading opening 3 to the laundry drum 5
  • Loading opening 3 or loading channel 10 can be closed by a door 13, which is pivotably attached to housing 2, in order to operate the laundry treatment appliance.
  • FIG. 1 The closed position P of the door 13 shown is sealed against the housing 2 by a door body 14 embedded in a door frame, which in this exemplary embodiment is designed as a frustoconical glass porthole 15.
  • a circular, resilient and elastically deflectable sealing lip 16 of the cuff 9 with a contact side 18 rests on its wall area 15a in a sealing manner all around.
  • Figure 2 shows that the contact side 18 of the sealing lip 16 is provided with a surface structure 20, which preferably has completely closed - that is, circular as seen in the circumferential direction U - encircling elevations 21, 22 which serve as contact surfaces, contact surface peaks or contact areas 23.
  • a surface structure 20 which preferably has completely closed - that is, circular as seen in the circumferential direction U - encircling elevations 21, 22 which serve as contact surfaces, contact surface peaks or contact areas 23.
  • only one circumferential elevation 21 or 22 is provided in the radial direction R.
  • at least one circumferential depression 24 is provided between the elevations 21, 22, so that the elevations 21, 22 are radially separated or spaced apart from one another.
  • only one circumferential elevation 21 or 22 is provided.
  • the circumferential elevations 21, 22 can have a triangular shape 28, 29.
  • the triangular shapes 28, 29 protrude upwards with their free triangular tips 28a, 29a extending away from the contact side 18 and when the door 13 is closed ( Figure 1 ) by deflecting the sealing lip 16 approximately radially into the feed channel 10 ( Figure 1 ) into it.
  • the profile shapes can be varied and adapted to the technical and geometric requirements, for example, to differently large contact areas 23 ( Figure 1 ) to realize.
  • profiles with a less acute triangular shape 28 ', 29' with triangular points 28a ', 29a' or triangular shape 28 ", 29" with triangular points 28a “, 29a” can be used. It is also conceivable to combine elevations with different triangular shapes.
  • Figure 4 shows a modification of the surface structure 20 'in which elevations 21', 22 'are formed by circular ring-shaped projections 30, 31 which are approximately rectangular in profile cross-section and with end faces 32, 33 facing the loading channel 10 when the door 13 is in the closed position.
  • a circumferential depression 24 ' runs between the elevations 21', 22 '.
  • the width and the cross-sectional area of the extensions 30, 30 ', 30 "; 31, 31', 31" can vary depending on requirements, the dimensions of the cooperating components and, for example, the choice of material for the cuff.
  • FIGS Figures 5 and 6 Further possible surface structures 20 ′′ and 20 ′ ′′ and their cross sections are shown in FIGS Figures 5 and 6 shown.
  • the height of the vertices 35a, 35a ', 35a "of the parabolic shape 35, 35', 35” or of the vertices 36a, 36a ', 36a "of the parabolic shape 36, 36', 36” can be adapted as required.
  • FIG. 6 shows elevations 21 "', 22"' separated by a circumferential depression 24 ', which in cross section have a so-called shark skin shape or a shark skin profile 38, 39.
  • This profile partially (on the left) has a parabola-like course, which at a summit point 38a , 39a (or circumferentially on a summit line) merges into a relatively steeply falling flank 40, 41.
  • the heights of the summit points - as indicated above by various hatching - define profiles whose vertices 38a ', 38a "; 39a ', 39a "are designed to be lower if necessary.
  • Figure 7 shows elevations 21 "", 22 “” separated by a circumferential depression 24 "", which in cross section have a sinusoidal shape 45, 45 ', 45 “, 46, 46', 46".
  • This profile has a sinusoidal course in the area of its upper vertex points 45a, 45a ', 45a “, 46a, 46a', 46a” as well as in the area of its lower vertex points 45b, 45b ', 45b “, 46b, 46b', 46b", wherein the upper vertices 45a, 45a ', 45a ", 46a, 46a', 46a” merge into the respectively adjacent lower vertices 45b, 45b ', 45b ", 46b, 46b', 46b” according to a sinusoidal curve.
  • the heights can of the upper vertices 45a, 46a - as also indicated above by different hatching - define profiles, the upper vertices 45a ', 45a ", 46a', 46a" of which are designed to be lower if necessary.
  • profile cross-sections explained above by way of example can be implemented and shaped in various combinations on the contact side 18 of the sealing lip 16.
  • profile cross-sections of two elevations 21, 22 to 21 '''', 22 '''' offset from one another on the contact side 18 of the sealing lip 16 are shown, but in alternative embodiments only one of the formed elevations can have a profile cross-section as described above, in particular in the case of an embodiment with only one circumferential elevation, or more than two elevations arranged offset with respect to one another with the profile cross-sections described can be provided on the contact side 18 of the sealing lip 16.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Description

Die Erfindung betrifft eine Manschette nach dem Oberbegriff des Patentanspruchs 1 sowie ein Wäschebehandlungsgerät nach dem Oberbegriff des Patentanspruchs 8. Dabei ist im Rahmen der vorliegenden Erfindung unter dem Betriff Wäschebehandlungsgerät sowohl eine klassische Waschmaschine als auch ein sog. Waschtrockner zu verstehen, der die Funktionen einer Waschmaschine und eines Wäschetrockners vereint.The invention relates to a cuff according to the preamble of claim 1 and a laundry treatment device according to the preamble of claim 8. In the context of the present invention, the term laundry treatment device is to be understood as a classic washing machine as well as a so-called washer-dryer that performs the functions of a washing machine and a tumble dryer combined.

Aus der DE 10 2015 216 363 A1 sind eine Manschette und eine Waschmaschine der eingangs genannten Art bekannt, die ein Maschinengehäuse mit einer frontseitigen Beschickungsöffnung und einen in diesem aufgenommenen Laugenbehälter aufweist. Zwischen einer Öffnung des Laugenbehälters und der Beschickungsöffnung ist flüssigkeitsdicht eine schlauchartige Manschette angeordnet, die einen Beschickungskanal bildet. Die Manschette hat an ihrem beschickungsöffnungsseitigen Endbereich eine Dichtlippe mit einer Anlageseite, die an einer Beschickungstür dichtend anliegt, wenn diese in einer die Beschickungsöffnung verschließenden Position ist. Um Beschädigungen durch während der Beschickung nicht korrekt eingelegte und beim Schließen der Beschickungstür zwischen dieser und dem Maschinengehäuse eingeklemmte Wäschestücke zu vermeiden, schlägt die DE 10 2015 216 363 A1 vor, dass ein zwischen der Beschickungstür und gehäuseseitigen Begrenzungswänden gebildeter Türspalt mindestens in einem unteren Teilbereich vergrößert ausgebildet ist.From the DE 10 2015 216 363 A1 a sleeve and a washing machine of the type mentioned are known, which has a machine housing with a front loading opening and a tub received in this. Between an opening of the tub and the loading opening, a hose-like sleeve is arranged in a liquid-tight manner, which sleeve forms a loading channel. At its end region on the loading opening side, the cuff has a sealing lip with a contact side which lies against a loading door in a sealing manner when this is in a position closing the loading opening. In order to avoid damage caused by items of laundry that are not inserted correctly during loading and that are jammed between the loading door and the machine housing when the loading door is closed, the DE 10 2015 216 363 A1 suggest that a door gap formed between the loading door and the housing-side boundary walls is enlarged at least in a lower partial area.

Eine Manschette und ein Wäschebehandlungsgerät der eingangs genannten Art gehen auch aus der DE 10 2015 204 327 A1 hervor, die ein Haushaltsgerät zur Pflege von Wäschestücken beschreibt mit einem Gehäuse, einer Beschickungsöffnung in der Gehäusefront, die von einer Beschickungstür verschließbar ist, einem in dem Gehäuse angeordneten Laugenbehälter und einer ringförmigen Dichtungsmanschette, die einen Beschickungskanal zwischen der Beschickungsöffnung und einer zugeordneten Öffnung des Laugenbehälters bildet. Die Manschette hat eine Dichtlippe mit einer Anlageseite, die bei geschlossener Beschickungstür an dieser anliegt. Die Dichtlippe ist an einem unteren Teilumfang ihrer Ringform mit einer Fangschutzstruktur für ein Wäschestück versehen.A cuff and a laundry treatment device of the type mentioned at the outset also go from the DE 10 2015 204 327 A1 out, which describes a household appliance for the care of laundry items with a housing, a loading opening in the front of the housing that can be closed by a loading door, a tub arranged in the housing and an annular sealing collar that has a loading channel between the loading opening and an associated opening of the tub forms. The sleeve has a sealing lip with a contact side that is in contact with this when the loading door is closed. The sealing lip is provided on a lower partial circumference of its ring shape with a safety catch structure for an item of laundry.

Diese bekannten Manschetten sind darauf gerichtet, durch Beschickungsfehler unvollständig in die Wäschetrommel eingebrachte Wäschestücke und/oder die Manschette selbst vor Beschädigungen zu schützen, wenn fehleingelegte Wäschestücke bei anlaufender Wäschetrommel verdrillen und unter der Dichtlippe weggerissen werden.These known cuffs are aimed at protecting items of laundry and / or the cuff itself from damage that are incompletely introduced into the laundry drum due to loading errors when incorrectly placed items of laundry twist when the laundry drum starts up and are torn away under the sealing lip.

WO 2014 / 021 614 A1 offenbart eine Waschmaschine, aufweisend ein Gehäuse, das einen Vorderflächenrahmen aufweist, durch den eine Öffnung gebildet ist, eine Tür, die an dem Gehäuse angebracht ist, um die Öffnung zu öffnen und zu schließen, eine Wanne, die in dem Gehäuse angeordnet ist, eine Trommel, die drehbar in der Wanne angeordnet ist, und eine Dichtung, die die Wanne mit dem Vorderflächenrahmen verbindet, um zu verhindern, dass eine Vibration der Wanne auf den Vorderflächenrahmen übertragen wird, wenn sich die Trommel dreht. Die Dichtung weist einen Körper mit einer Öffnung, die dafür konfiguriert ist, einen Abschnitt der Tür und ein peripheres Teil, das die Öffnung umgibt, aufzunehmen, und eine Vielzahl von Verstärkungsrippen auf, die in einer Umfangsrichtung des peripheren Teils voneinander beabstandet sind. Jede Verstärkungsrippe weist einen vorstehenden Abschnitt des peripheren Teils auf, wobei die innere Oberfläche des peripheren Teils einen vertieften Abschnitt aufweist, der dem vorstehenden Abschnitt entspricht. Jede Verstärkungsrippe weist eine vorbestimmte Breite in einer Umfangsrichtung des peripheren Teils auf und mindestens ein Abschnitt der Verstärkungsrippe erstreckt sich entlang des peripheren Teils in der axialen Richtung der Trommel. WO 2014/021 614 A1 discloses a washing machine comprising a housing having a front surface frame through which an opening is formed, a door attached to the housing to open and close the opening, a tub disposed in the housing, a A drum rotatably disposed in the tub and a seal connecting the tub to the face frame to prevent vibration of the tub from being transmitted to the face frame when the drum rotates. The gasket has a body with an opening configured to receive a portion of the door and a peripheral part surrounding the opening, and a plurality of reinforcing ribs spaced from each other in a circumferential direction of the peripheral part. Each reinforcing rib has a protruding portion of the peripheral part, and the inner surface of the peripheral part has a recessed portion corresponding to the protruding portion. Each reinforcement rib has a predetermined width in a circumferential direction of the peripheral part, and at least a portion of the reinforcement rib extends along the peripheral part in the axial direction of the drum.

Demgegenüber besteht die Aufgabe der vorliegenden Erfindung darin, insbesondere bei sog. Frontlader-Wäschebehandlungsmaschinen eine zuverlässige Türöffnungsfunktion zu realisieren. Dabei soll die Rückhaltkraft, die von der an der Beschickungstür anliegenden Dichtlippe ausgeübt wird, reproduzierbar und möglichst gering sein.In contrast, the object of the present invention is to implement a reliable door opening function, particularly in so-called front-loading laundry treatment machines. The retaining force exerted by the sealing lip resting on the loading door should be reproducible and as low as possible.

Die Lösung dieser Aufgabe gelingt erfindungsgemäß hinsichtlich einer Manschette mit einer Manschette mit den Merkmalen des Patentanspruchs 1 und hinsichtlich eines Wäschebehandlungsgeräts mit einem Wäschebehandlungsgerät mit den Merkmalen des Patentanspruchs 8.This object is achieved according to the invention with regard to a cuff with a cuff with the features of claim 1 and with regard to a laundry treatment device with a laundry treatment device with the features of claim 8.

Demgemäß ist bei einer Manschette bzw. bei einem Wäschebehandlungsgerät der eingangs genannten Art erfindungsgemäß vorgesehen, dass die Anlageseite der Manschette eine Oberflächenstruktur aufweist, die zumindest eine in Umfangsrichtung umlaufende Erhebung umfasst.Accordingly, in the case of a cuff or a laundry treatment device of the type mentioned at the outset, it is provided according to the invention that the contact side of the cuff has a surface structure which comprises at least one elevation running around the circumference.

Durch die Oberflächenstruktur der Dichtlippe, die beim Schließen der Beschickungstür in Kontakt mit dieser gelangt, wird die auf die Beschickungstür wirkende Rückhaltekraft der Dichtlippe bei weiterhin gewährleisteter Dichtfunktion signifikant verringert. Die Dichtlippe gelangt nämlich nur an separierten und mithin klar definierten Kontaktzonen in Körperkontakt mit der Beschickungstür. Insbesondere, wenn die Beschickungstür einen aus Fensterglas bestehenden, sich nach innen erstreckenden Türkörper umfasst (ein sogenanntes Bullauge), der in Kontakt mit der Dichtlippe gelangt, kann die Rückhaltekraft ohne Erhöhung des Fertigungsaufwandes der Manschette präzise und reproduzierbar eingestellt werden. Dies wird durch die in geschlossenem Zustand der Beschickungstür in axialer Richtung (d.h. im Wesentlichen in Richtung des Beschickungskanals) bestehenden Bereiche eines Körperkontakts (durch die umlaufende Erhebung), d.h. fehlendem Körperkontakt der Anlageseite der Manschette, realisiert. Der sonst übliche flächige Kontaktbereich der Anlageseite wird durch die Erhebung reduziert und gegebenenfalls auf einen Körperkontakt der Erhebung begrenzt.Due to the surface structure of the sealing lip, which comes into contact with the loading door when it is closed, the retaining force of the sealing lip acting on the loading door is significantly reduced while the sealing function continues to be guaranteed. The sealing lip only comes into contact with separate and therefore clearly defined contact zones Body contact with the loading door. In particular, if the loading door comprises an inwardly extending door body made of window glass (a so-called porthole) which comes into contact with the sealing lip, the retaining force can be set precisely and reproducibly without increasing the production cost of the sleeve. This is realized by the areas of body contact (through the circumferential elevation) that exist in the axial direction (ie essentially in the direction of the loading channel) when the loading door is closed, ie lack of body contact with the contact side of the cuff. The otherwise usual flat contact area on the contact side is reduced by the elevation and, if necessary, limited to body contact of the elevation.

Besonders bevorzugt ist vorgesehen, dass die Anlageseite der Manschette eine Oberflächenstruktur aufweist, zwei in Umfangsrichtung umlaufende Erhebungen umfasst, die in radialer Richtung durch mindestens eine Vertiefung beabstandet sind. Hierdurch dann vorteilhaft die Dichtfunktion, insbesondere durch eine Labyrinthbildung, sichergestellt werden, wobei dennoch ein flächiger Körperkontakt der Anlageseite der Manschette vermieden werden kann. Dabei müssen die Erhebungen nicht zwingend vollständig umlaufend (d.h. als geschlossene Ringform) ausgebildet sein, solange durch geeignete Maßnahmen - wie z.B. durch in Umfangsrichtung parallel versetzte Erhebungen oder wellen- oder mäanderförmig ausgestaltete Erhebungen - eine ausreichende Dichtfunktion in axialer Richtung sichergestellt ist. Bevorzugt ist zumindest eine bzw. sind mehrere oder alle Erhebungen in geschlossener Ringform gestaltet.It is particularly preferably provided that the contact side of the sleeve has a surface structure comprising two projections running around the circumference, which are spaced apart in the radial direction by at least one depression. This then advantageously ensures the sealing function, in particular through the formation of a labyrinth, with a flat body contact of the contact side of the Cuff can be avoided. The elevations do not necessarily have to be completely circumferential (i.e. as a closed ring shape), as long as suitable measures - such as, for example, elevations offset in parallel in the circumferential direction or elevations configured in a wave or meander shape - ensure a sufficient sealing function in the axial direction. At least one or more or all of the elevations are preferably designed in a closed ring shape.

Vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus der nachfolgenden Beschreibung, den Unteransprüchen und der Figurenbeschreibung, wobei einzelne Merkmale in Kombination oder einzeln angewendet werden können.Advantageous embodiments of the invention emerge from the following description, the subclaims and the description of the figures, with individual features being able to be used in combination or individually.

Hinsichtlich der Formgebung der Erhebungen bzw. Vertiefungen der Oberflächenstruktur der Anlageseite ist nach einer bevorzugten Fortbildung der Erfindung vorgesehen, dass zumindest eine Erhebung im Profilquerschnitt eine Dreiecksform aufweist, wobei sich die Dreiecksform mit einer Spitze von der Anlageseite weg erstreckt.With regard to the shape of the elevations or depressions of the surface structure of the contact side, a preferred development of the invention provides that at least one elevation has a triangular shape in the profile cross-section, the triangular shape extending with a tip away from the contact side.

Eine bevorzugte Weiterbildung der Erfindung sieht vor, dass zumindest eine Erhebung im Profilquerschnitt eine Rechteckform aufweist.A preferred development of the invention provides that at least one elevation has a rectangular shape in the profile cross-section.

Eine bevorzugte Ausgestaltung der Erfindung sieht vor, dass zumindest eine Erhebung im Profilquerschnitt eine Parabelform aufweist, deren Scheitelpunkt sich von der Anlageseite weg erstreckt.A preferred embodiment of the invention provides that at least one elevation in the profile cross section has a parabolic shape, the apex of which extends away from the contact side.

Weiter bevorzugt ist eine Ausgestaltung der Erfindung, nach der zumindest eine Erhebung im Profilquerschnitt ein Haihautprofil aufweist.An embodiment of the invention is further preferred, according to which at least one elevation has a shark skin profile in the profile cross-section.

Eine weitere bevorzugte Ausgestaltung der Erfindung sieht vor, dass eine Erhebung im Profilquerschnitt eine Sinusform aufweist, deren oberer Scheitelpunkt sich von der Anlageseite weg erstreckt.Another preferred embodiment of the invention provides that an elevation in the profile cross section has a sinusoidal shape, the upper apex of which extends away from the contact side.

Bei den verschiedenen bevorzugten Profilquerschnitte ist die Anlagefläche gegenüber einer unstrukturierten Oberfläche der Manschette deutlich reduziert, wobei durch Auswahl eines der vorgeschlagenen Profilquerschnittes und durch den geometrischen Abmessungen des Profilquerschnittes die für eine Dichtwirkung erforderliche Kontaktzone und die Rückhaltekraft vorteilhaft genau eingestellt werden kann. Es hat sich gezeigt, dass ein sinunsförmiger Profilquerschnitt ein besonders sanftes Schließen der Beschickungstür ermöglicht. D.h. Die während des Schließens der Beschickungstür aufzuwendende Kraft bzw. deren Änderung über den Schließweg ist gegenüber den anderen Ausführungsformen oder einer Ausführungsform ohne eine erfindungsgemäße Oberflächenstruktur reduziert. Hierbei wird nur der Kraftanteil betrachtet, der durch die Verformung der Anlageseite der Manschette in der Kontaktzone bewirkt wird.With the various preferred profile cross-sections, the contact surface is significantly reduced compared to an unstructured surface of the sleeve, whereby the contact zone and the retention force required for a sealing effect can advantageously be set precisely by selecting one of the proposed profile cross-sections and the geometric dimensions of the profile cross-section. It has been shown that a sinusoidal profile cross-section enables particularly gentle closing of the Loading door allows. That is, the force to be applied during the closing of the loading door or its change over the closing path is reduced compared to the other embodiments or an embodiment without a surface structure according to the invention. Here, only the force component is considered which is caused by the deformation of the contact side of the cuff in the contact zone.

Es können auch verschieden profilierte oder ausgestaltete Erhebungen miteinander kombiniert werden, ohne den Gedanken der Erfindung zu verlassen.Elevations with different profiles or designs can also be combined with one another without departing from the concept of the invention.

Die Erfindung wird nachfolgend anhand zeichnerisch dargestellter Ausführungsbeispiele weiter erläutert; es zeigen:

  • Figur 1 eine teilweise Schnittansicht eines Wäschebehandlungsgerätes,
  • Figur 2 schematisch in Aufsicht eine Oberflächenstruktur einer Dichtlippe,
  • Figur 3 im Querschnitt Q-Q der Figur 2 eine erste mögliche Oberflächenstruktur,
  • Figur 4 im Querschnitt Q-Q der Figur 2 eine weitere mögliche Oberflächenstruktur,
  • Figur 5 im Querschnitt Q-Q der Figur 2 eine weitere mögliche Oberflächenstruktur,
  • Figur 6 im Querschnitt Q-Q der Figur 2 eine weitere mögliche Oberflächenstruktur und
  • Figur 7 im Querschnitt Q-Q der Figur 2 eine weitere mögliche Oberflächenstruktur.
The invention is explained in more detail below with reference to exemplary embodiments shown in the drawings; show it:
  • Figure 1 a partial sectional view of a laundry treatment device,
  • Figure 2 a schematic plan view of a surface structure of a sealing lip,
  • Figure 3 in cross-section QQ the Figure 2 a first possible surface structure,
  • Figure 4 in cross-section QQ the Figure 2 another possible surface structure,
  • Figure 5 in cross-section QQ the Figure 2 another possible surface structure,
  • Figure 6 in cross-section QQ the Figure 2 another possible surface structure and
  • Figure 7 in cross-section QQ the Figure 2 another possible surface structure.

Figur 1 zeigt schematisch im Längsschnitt einen Ausschnitt aus dem Frontbereich eines Wäschebehandlungsgeräts 1 mit einem Gerätegehäuse 2, das frontseitig eine Beschickungsöffnung 3 (Be- und Entladeöffnung) aufweist. In dem Gehäuse 2 ist ein Laugenbehälter 4 angeordnet, der gemeinsam mit weiteren, dem Laugenbehälter 4 zugeordneten Komponenten über hier nicht näher dargestellte Feder- und Dämpfungselemente in dem Gehäuse 2 schwingend gelagert ist. In dem Laugenbehälter 4 ist eine Wäschetrommel 5 angeordnet, die um eine Drehachse 6 drehbar gelagert und deren frontseitige Öffnung 8 auf die Beschickungsöffnung 3 ausgerichtet ist, so dass ein Beladen in die und ein Entnehmen von Wäsche aus der Wäschetrommel 5 ermöglicht ist. Figure 1 shows schematically in longitudinal section a detail from the front area of a laundry treatment appliance 1 with an appliance housing 2 which has a loading opening 3 (loading and unloading opening) on the front. A tub 4 is arranged in the housing 2, which, together with other components assigned to the tub 4, is mounted in the housing 2 in a swinging manner by means of spring and damping elements not shown here. In the tub 4, a laundry drum 5 is arranged, which is rotatably mounted about an axis of rotation 6 and the front opening 8 of which is aligned with the loading opening 3 so that laundry can be loaded into and removed from the laundry drum 5.

Um dem Laugenbehälter 4 (in Maßen) eine Relativbewegung gegenüber dem Gehäuse 2 zu ermöglichen, ist zwischen der Beschickungsöffnung 3 und der Öffnung 8 eine DichtManschette 9 angeordnet, die hohlzylindrisch ausgeführt ist und die beiden Öffnungen 3 und 8 flüssigkeitsdicht miteinander verbindet. Die Manschette 9 ist dazu mit einem Anschlussbereich 9a mit dem Laugenbehälter 4 und mit ihrem anderen Anschlussbereich 9b mit dem Gehäuse 2 verbunden. Die Manschette 9 bildet somit einen von der Beschickungsöffnung 3 zur Wäschetrommel 5 führenden Beschickungskanal 10. Die Beschickungsöffnung 3 bzw. der Beschickungskanal 10 ist von einer Tür 13, die an dem Gehäuse 2 verschwenkbar befestigt ist, zum Betrieb des Wäschebehandlungsgeräts verschließbar.In order to allow the tub 4 to move relative to the housing 2 (in dimensions), a sealing sleeve 9 is arranged between the loading opening 3 and the opening 8, which is hollow-cylindrical and connects the two openings 3 and 8 to one another in a liquid-tight manner. For this purpose, the cuff 9 is connected to the tub 4 with a connection area 9a and to the housing 2 with its other connection area 9b. The cuff 9 thus forms a loading channel 10 leading from the loading opening 3 to the laundry drum 5 Loading opening 3 or loading channel 10 can be closed by a door 13, which is pivotably attached to housing 2, in order to operate the laundry treatment appliance.

In der in Figur 1 gezeigten geschlossenen Position P der Tür 13 erfolgt eine Abdichtung gegenüber dem Gehäuse 2 durch einen in einen Türrahmen eingelassenen Türkörper 14, der in diesem Ausführungsbeispiel als kegelstumpfartiges Glasbullauge 15 ausgebildet ist. An dessen Wandbereich 15a liegt eine kreisringförmige, nachgiebige und elastisch auslenkbare Dichtlippe 16 der Manschette 9 mit einer Anlageseite 18 umlaufend dichtend an.In the in Figure 1 The closed position P of the door 13 shown is sealed against the housing 2 by a door body 14 embedded in a door frame, which in this exemplary embodiment is designed as a frustoconical glass porthole 15. A circular, resilient and elastically deflectable sealing lip 16 of the cuff 9 with a contact side 18 rests on its wall area 15a in a sealing manner all around.

Figur 2 zeigt, dass die Anlageseite 18 der Dichtlippe 16 mit einer Oberflächenstruktur 20 versehen ist, die bevorzugt vollständig geschlossene - also in Umfangsrichtung U gesehen kreisförmige - umlaufende Erhebungen 21, 22 aufweist, die als Kontaktflächen, Kontaktflächengipfel oder Kontaktbereiche 23 dienen. In einer alternativen, nicht dargestellten Ausführungsform ist nur eine umlaufende Erhebung 21 oder 22 vorgesehen. In radialer Richtung R ist zwischen den Erhebungen 21, 22 zumindest eine umlaufende Vertiefung 24 vorgesehen, so dass die Erhebungen 21, 22 radial voneinander separiert oder beabstandet sind. In einer alternativen, nicht dargestellten Ausführungsform ist nur eine umlaufende Erhebung 21 oder 22 vorgesehen. Figure 2 shows that the contact side 18 of the sealing lip 16 is provided with a surface structure 20, which preferably has completely closed - that is, circular as seen in the circumferential direction U - encircling elevations 21, 22 which serve as contact surfaces, contact surface peaks or contact areas 23. In an alternative, not shown embodiment, only one circumferential elevation 21 or 22 is provided. In the radial direction R, at least one circumferential depression 24 is provided between the elevations 21, 22, so that the elevations 21, 22 are radially separated or spaced apart from one another. In an alternative, not shown embodiment, only one circumferential elevation 21 or 22 is provided.

Wie Figur 3 in einem radial in der Dichtlippe 16 verlaufenden Profilquerschnitt Q-Q nach Figur 2 schematisch zeigt, können die umlaufenden Erhebungen 21, 22 Dreiecksform 28, 29 aufweisen. Die Dreiecksformen 28, 29 ragen dabei mit ihrer freien, sich von der Anlageseite 18 weg erstreckenden Dreiecksspitze 28a, 29a nach oben und bei geschlossener Tür 13 (Figur 1) durch entsprechende Auslenkung der Dichtlippe 16 etwa radial in den Beschickungskanal 10 (Figur 1) hinein.How Figure 3 in a profile cross-section QQ running radially in the sealing lip 16 Figure 2 schematically shows, the circumferential elevations 21, 22 can have a triangular shape 28, 29. The triangular shapes 28, 29 protrude upwards with their free triangular tips 28a, 29a extending away from the contact side 18 and when the door 13 is closed ( Figure 1 ) by deflecting the sealing lip 16 approximately radially into the feed channel 10 ( Figure 1 ) into it.

Wie Figur 3 in durch verschiedene Schraffuren dargestellte alternative Ausgestaltungen verdeutlicht, können die Profilformen variiert und an die technischen und geometrischen Erfordernisse bedarfsweise angepasst werden, beispielsweise um verschieden großflächige Kontaktbereiche 23 (Figur 1) zu realisieren. Wie angedeutet können dazu z.B. Profile mit weniger spitzwinkliger Dreiecksform 28', 29' mit Dreiecksspitzen 28a', 29a' oder Dreiecksform 28", 29" mit Dreiecksspitzen 28a", 29a" verwendet werden. Es ist auch denkbar, Erhebungen mit verschiedenen Dreiecksformen zu kombinieren.How Figure 3 illustrated in alternative designs shown by different hatching, the profile shapes can be varied and adapted to the technical and geometric requirements, for example, to differently large contact areas 23 ( Figure 1 ) to realize. As indicated, for example, profiles with a less acute triangular shape 28 ', 29' with triangular points 28a ', 29a' or triangular shape 28 ", 29" with triangular points 28a ", 29a" can be used. It is also conceivable to combine elevations with different triangular shapes.

Figur 4 zeigt eine Abwandlung der Oberflächenstruktur 20', bei der Erhebungen 21', 22' von im Profilquerschnitt annähernd rechteckigen, kreisringförmigen Fortsätzen 30, 31 mit in geschlossener Position der Tür 13 dem Beschickungskanal 10 zugewandten Stirnseiten 32, 33 gebildet sind. Zwischen den Erhebungen 21', 22' verläuft eine umlaufenden Vertiefung 24'. Die Breite und die Querschnittsfläche der Fortsätze 30, 30', 30"; 31, 31', 31" können je nach Bedarf, Dimension der kooperierenden Komponenten und beispielsweise Materialauswahl für die Manschette variieren. So ist in Figur 4 schematisch dargestellt, dass die Stirnseite 32', 32"; 33', 33" der Fortsätze 30', 30"; 31', 31" statt in der Höhe H auch in geringerer Höhe H' oder H" ausgeführt sein kann. Bevorzugt weisen die Erhebungen wie angedeutet einen leicht trapezförmigen, sich von der Anlageseite 18 weg verjüngenden Querschnitt auf. Figure 4 shows a modification of the surface structure 20 'in which elevations 21', 22 'are formed by circular ring-shaped projections 30, 31 which are approximately rectangular in profile cross-section and with end faces 32, 33 facing the loading channel 10 when the door 13 is in the closed position. A circumferential depression 24 'runs between the elevations 21', 22 '. The width and the cross-sectional area of the extensions 30, 30 ', 30 "; 31, 31', 31" can vary depending on requirements, the dimensions of the cooperating components and, for example, the choice of material for the cuff. So is in Figure 4 shown schematically that the end face 32 ', 32 ";33',33" of the extensions 30 ', 30 ";31',31" can also be designed at a lower height H 'or H "instead of at the height H. Preferably the elevations, as indicated, have a slightly trapezoidal cross-section that tapers away from the contact side 18.

Weitere mögliche Oberflächenstrukturen 20" bzw. 20'" bzw. deren Querschnitte sind in den Figuren 5 und 6 dargestellt. Gemäß Figur 5 können die von einer umlaufenden Vertiefung 24" separierten Profilquerschnitte der Erhebungen 21" und 22" eine Parabelform 35, 36 aufweisen, wobei der Scheitelpunkt 35a, 36a der Parabelform in den Beschickungskanal 10 hineinreichend orientiert ist. Auch hier kann wie vorstehend schon beschrieben je nach Dimensionierung die Höhe der Scheitelpunkte 35a, 35a', 35a" der Parabelform 35, 35', 35" bzw. der Scheitelpunkte 36a, 36a', 36a" der Parabelform 36, 36', 36" je nach Bedarf angepasst werden.Further possible surface structures 20 ″ and 20 ′ ″ and their cross sections are shown in FIGS Figures 5 and 6 shown. According to Figure 5 The profile cross-sections of the elevations 21 "and 22" separated by a circumferential recess 24 "can have a parabolic shape 35, 36, the apex 35a, 36a of the parabolic shape being oriented into the feed channel 10. Here too, as already described above, depending on the dimensions the height of the vertices 35a, 35a ', 35a "of the parabolic shape 35, 35', 35" or of the vertices 36a, 36a ', 36a "of the parabolic shape 36, 36', 36" can be adapted as required.

Figur 6 zeigt von einer umlaufenden Vertiefung 24'" separierte Erhebungen 21"', 22"', die im Querschnitt eine sog. Haihautform oder ein Haihautprofil 38, 39 aufweisen. Dieses Profil weist teilweise (linksseitig) einen parabelähnlichen Verlauf auf, der an einem Gipfelpunkt 38a, 39a (bzw. umlaufend an einer Gipfellinie) in eine relativ steil fallende Flanke 40, 41 übergeht. Auch hier können die Höhen der Gipfelpunkte - wie auch zuvor durch verschiedene Schraffierungen angedeutet - Profile definieren, deren Scheitelpunkte 38a', 38a"; 39a', 39a" bedarfsweise tiefer liegend ausgestaltet sind. Figure 6 shows elevations 21 "', 22"' separated by a circumferential depression 24 ', which in cross section have a so-called shark skin shape or a shark skin profile 38, 39. This profile partially (on the left) has a parabola-like course, which at a summit point 38a , 39a (or circumferentially on a summit line) merges into a relatively steeply falling flank 40, 41. Here, too, the heights of the summit points - as indicated above by various hatching - define profiles whose vertices 38a ', 38a "; 39a ', 39a "are designed to be lower if necessary.

Figur 7 zeigt von einer umlaufenden Vertiefung 24"" separierte Erhebungen 21"", 22"", die im Querschnitt eine Sinunsform 45, 45', 45", 46, 46', 46" aufweisen. Dieses Profil hat in sowohl Bereich seiner oberen Scheiteilpunkte 45a, 45a', 45a", 46a, 46a', 46a" wie auch im Bereich seiner unteren Scheitelpunkte 45b, 45b', 45b", 46b, 46b', 46b" einen sinusförmigen Verlauf, wobei die oberen Scheitelpunkte 45a, 45a', 45a", 46a, 46a', 46a" in die jeweils benachbarten unteren Scheitelpunkte 45b, 45b', 45b", 46b, 46b', 46b"entsprechend eines sinusförmigen Verlaufs übergehen. Auch hier können die Höhen der oberen Scheitelpunkte 45a, 46a - wie auch zuvor durch verschiedene Schraffierungen angedeutet - Profile definieren, deren obere Scheitelpunkte 45a', 45a", 46a', 46a" bedarfsweise tiefer liegend ausgestaltet sind. Figure 7 shows elevations 21 "", 22 "" separated by a circumferential depression 24 "", which in cross section have a sinusoidal shape 45, 45 ', 45 ", 46, 46', 46". This profile has a sinusoidal course in the area of its upper vertex points 45a, 45a ', 45a ", 46a, 46a', 46a" as well as in the area of its lower vertex points 45b, 45b ', 45b ", 46b, 46b', 46b", wherein the upper vertices 45a, 45a ', 45a ", 46a, 46a', 46a" merge into the respectively adjacent lower vertices 45b, 45b ', 45b ", 46b, 46b', 46b" according to a sinusoidal curve. Here, too, the heights can of the upper vertices 45a, 46a - as also indicated above by different hatching - define profiles, the upper vertices 45a ', 45a ", 46a', 46a" of which are designed to be lower if necessary.

Die vorstehend beispielhaft erläuterten Profilquerschnitte können in verschiedener Kombination auf der Anlageseite 18 der Dichtlippe 16 realisiert und ausgeformt sein. Ferner sind in den Fig. 3 bis 7 sind Profilquerschnitte von jeweils zwei zueinander versetzt auf der Anlageseite 18 der Dichtlippe 16 angeordneten Erhebungen 21, 22 bis 21'''', 22'''' dargestellt, jedoch kann auch in alternativen Ausführungsformen nur eine der angeformten Erhebungen einen vorstehend beschriebenen Profilquerschnitt aufweisen, insbesondere bei einer Ausführung mit nur einer umlaufenden Erhebung, oder können mehr als zwei zueinander versetzte angeordnete Erhebungen mit den beschriebenen Profilquerschnitten auf der Anlageseite 18 der Dichtlippe 16 vorgesehen sein.The profile cross-sections explained above by way of example can be implemented and shaped in various combinations on the contact side 18 of the sealing lip 16. Furthermore, in the Figures 3 to 7 profile cross-sections of two elevations 21, 22 to 21 '''', 22 '''' offset from one another on the contact side 18 of the sealing lip 16 are shown, but in alternative embodiments only one of the formed elevations can have a profile cross-section as described above, in particular in the case of an embodiment with only one circumferential elevation, or more than two elevations arranged offset with respect to one another with the profile cross-sections described can be provided on the contact side 18 of the sealing lip 16.

BezugszeichenReference number

11
WäschebehandlungsgerätLaundry treatment device
22
GerätegehäuseDevice housing
33
BeschickungsöffnungLoading opening
44th
LaugenbehälterSuds container
55
WäschetrommelLaundry drum
66th
DrehsachseAxis of rotation
88th
Öffnungopening
99
Manschettecuff
9a9a
AnschlussbereichConnection area
9b9b
AnschlussbereichConnection area
1010
BeschickungskanalLoading channel
1313th
Türdoor
1414th
TürkörperDoor body
1515th
GlasbullaugeGlass porthole
15a15a
WandbereichWall area
1616
DichtlippeSealing lip
1818th
AnlageseiteInvestment page
20, 20', 20'', 20''', 20''''20, 20 ', 20' ', 20' '', 20 '' ''
OberflächenstrukturSurface structure
21, 21', 21'', 21''', 21''''21, 21 ', 21' ', 21' '', 21 '' ''
ErhebungElevation
22, 22', 22'', 22''', 22''''22, 22 ', 22' ', 22' '', 22 '' ''
ErhebungElevation
2323
KontaktbereichContact area
24, 24', 24'', 24''',, 24''''24, 24 ', 24' ', 24' '' ,, 24 '' ''
Vertiefungdeepening
28, 28', 28'', 28'''28, 28 ', 28' ', 28' ''
DreiecksformTriangular shape
29, 29', 29'', 29'''29, 29 ', 29' ', 29' ''
DreiecksformTriangular shape
28a, 28a', 28a'', 28a'''28a, 28a ', 28a ", 28a" "
DreiecksspitzeTriangle apex
29a, 29a', 29a'', 29a'''29a, 29a ', 29a ", 29a" "
DreiecksspitzeTriangle apex
30, 30', 30"30, 30 ', 30 "
FortsatzAppendix
31, 31', 31''31, 31 ', 31' '
FortsatzAppendix
32', 32"; 33', 33"32 ', 32 "; 33', 33"
StirnseiteFront side
35, 35',35"35, 35 ', 35 "
ParabelformParabolic shape
35a, 35a', 35a"35a, 35a ', 35a "
ScheitelpunktVertex
36, 36',36"36, 36 ', 36 "
ParabelformParabolic shape
36a, 36a', 36a"36a, 36a ', 36a "
ScheitelpunktVertex
38, 38', 38"38, 38 ', 38 "
HaihautprofilShark skin profile
38a, 38a', 38a"38a, 38a ', 38a "
GipfelpunktPeak
39, 39', 39"39, 39 ', 39 "
HaihautprofilShark skin profile
39a, 39a', 39a"39a, 39a ', 39a "
GipfelpunktPeak
40, 4140, 41
FlankeFlank
45, 45', 45"45, 45 ', 45 "
SinusformSinusoidal shape
45a, 45a', 45a"45a, 45a ', 45a "
oberer Scheitelpunktupper vertex
45b, 45b', 45b"45b, 45b ', 45b "
unterer Scheitelpunktlower vertex
46, 46', 46"46, 46 ', 46 "
SinusformSinusoidal shape
46a, 46a', 46a"46a, 46a ', 46a "
oberer Scheitelpunktupper vertex
46b, 46b', 46b"46b, 46b ', 46b "
unterer Scheitelpunktlower vertex
H, H', H"H, H ', H "
Höheheight
PP
geschlossene Positionclosed position
Q-QQ-Q
Querschnittcross-section
RR.
radiale Richtungradial direction
UU
UmfangsrichtungCircumferential direction

Claims (10)

  1. Cuff (9) for a laundry treatment device (1), having a loading door (13) with a door body (14) which has a housing (2) and a tub (4) arranged therein,
    - which forms a loading duct (10) between a front housing opening (3) and a tub opening (8) facing this and
    - which has at least one inwardly extending sealing lip (16) running in the circumferential direction (U) with a contact side (18) which abuts the door body (14) when the loading door (13) is closed,
    characterised in that
    - the contact side (18) has a surface structure (20) which comprises at least one elevation (21, 22) running in the circumferential direction (U).
  2. Cuff (9) according to claim 1,
    characterised in that
    the contact side (18) has a surface structure (20) which comprises at least two elevations (21, 22) running in the circumferential direction (U) and spaced apart in the radial direction (R) by at least one depression (24).
  3. Cuff according to claim 1 or 2,
    characterised in that
    at least one elevation (21, 22) has a triangular shape (28, 29) in the profile cross-section (Q-Q), wherein one tip (28a, 29a) of the triangular shape (28, 29) extends away from the contact side (18).
  4. Cuff according to claim 1 or 2,
    characterised in that
    at least one elevation (21', 22') has a rectangular shape in the profile cross-section.
  5. Cuff according to claim 1 or 2,
    characterised in that
    at least one elevation (21", 22") has a parabolic shape (35, 36) in the profile cross-section, the apex (35a, 36a) of which extends away from the contact side (18).
  6. Cuff according to claim 1 or 2,
    characterised in that
    at least one elevation (21''', 22''') has a shark skin profile (38, 39) in the profile cross-section, the summit point (38a, 39a) of which extends away from the contact side (18).
  7. Cuff according to claim 1 or 2,
    characterised in that
    at least one elevation (21"", 22"") has a sinusoidal shape (45, 46) in the profile cross-section, the upper apex (45a, 46a) of which extends away from the contact side (18).
  8. Laundry treatment device (1)
    - having a housing (2) with a front loading opening (3),
    - having a tub (4) with a tub opening (8) aligned with the loading opening (3),
    - having a cuff (9) which forms a loading duct (10) between the loading opening (3) and the tub opening (8),
    - having a loading door (13) with a door body (14) which shuts the loading opening (3) in the closed position (P),
    - wherein the cuff (9) has at least one inwardly extending sealing lip (16) with a contact side (18) which abuts the door body (14) when the loading door (13) is closed,
    characterised in that
    - the contact side (18) has a surface structure (20) which comprises at least one elevation (21, 22) running in the circumferential direction (U).
  9. Laundry treatment device (1) according to claim 8,
    characterised in that
    the contact side (18) has a surface structure (20) which comprises at least two elevations (21, 22) running in the circumferential direction (U) and spaced apart in the radial direction (R) by at least one circumferential depression (24).
  10. Laundry treatment device (1) according to claim 8 or 9,
    characterised in that
    the laundry treatment device (1) the cuff (9) is designed according to one of claims 3 to 7.
EP19162586.2A 2018-03-28 2019-03-13 Cuff and laundry treatment device Active EP3546634B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL19162586T PL3546634T3 (en) 2018-03-28 2019-03-13 Cuff and laundry treatment device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018204716.2A DE102018204716A1 (en) 2018-03-28 2018-03-28 Cuff and laundry treatment device

Publications (2)

Publication Number Publication Date
EP3546634A1 EP3546634A1 (en) 2019-10-02
EP3546634B1 true EP3546634B1 (en) 2021-05-12

Family

ID=65812061

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19162586.2A Active EP3546634B1 (en) 2018-03-28 2019-03-13 Cuff and laundry treatment device

Country Status (4)

Country Link
EP (1) EP3546634B1 (en)
CN (1) CN110318227B (en)
DE (1) DE102018204716A1 (en)
PL (1) PL3546634T3 (en)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6256823B1 (en) * 1999-06-29 2001-07-10 The Chardon Rubber Company Bellows for front loading washing machines
JP2008101639A (en) * 2006-10-17 2008-05-01 Nok Corp Sealing device
DE102010062590B4 (en) * 2010-12-08 2018-08-30 BSH Hausgeräte GmbH Sealing collar for a washing machine
KR101962453B1 (en) * 2012-07-31 2019-07-17 삼성전자주식회사 Gasket usable with laundry machine and laundry machine having the same
JP3193462U (en) * 2014-07-24 2014-10-02 Nok株式会社 Sealing device for washing machine
DE102015204327A1 (en) 2015-03-11 2016-09-15 BSH Hausgeräte GmbH Household appliance for the care of laundry with a specially designed gasket
DE102015207724B3 (en) * 2015-04-28 2016-06-23 BSH Hausgeräte GmbH Domestic appliance and method for connecting a sealing sleeve with a housing wall of a household appliance
DE102015216363A1 (en) 2015-08-27 2017-03-02 BSH Hausgeräte GmbH Washing machine with door area to prevent laundry damage

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
CN110318227A (en) 2019-10-11
EP3546634A1 (en) 2019-10-02
DE102018204716A1 (en) 2019-10-02
PL3546634T3 (en) 2021-11-29
CN110318227B (en) 2023-11-07

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