EP3031970B1 - Toplader-Trommel für Wäschepflegegeräte - Google Patents

Toplader-Trommel für Wäschepflegegeräte Download PDF

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Publication number
EP3031970B1
EP3031970B1 EP14197248.9A EP14197248A EP3031970B1 EP 3031970 B1 EP3031970 B1 EP 3031970B1 EP 14197248 A EP14197248 A EP 14197248A EP 3031970 B1 EP3031970 B1 EP 3031970B1
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EP
European Patent Office
Prior art keywords
drum
articulated
lateral wall
closing device
top loading
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.)
Active
Application number
EP14197248.9A
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English (en)
French (fr)
Other versions
EP3031970A1 (de
Inventor
Vedobrato Chatterjee
Deepak Gupta
Sachin Goverdhanrao Nilawar
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.)
Whirlpool Corp
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Whirlpool Corp
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Publication date
Application filed by Whirlpool Corp filed Critical Whirlpool Corp
Priority to EP14197248.9A priority Critical patent/EP3031970B1/de
Publication of EP3031970A1 publication Critical patent/EP3031970A1/de
Application granted granted Critical
Publication of EP3031970B1 publication Critical patent/EP3031970B1/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
    • 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
    • D06F37/10—Doors; 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
    • D06F37/02—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 present invention relates to a drum for laundry appliances, i.e. appliances for the washing and/or drying of laundry, of the top-loading type.
  • the present invention is related to a top-loading drum for laundry appliances which is provided with an increased opening window for accessing the internal volume of the drum and with a closing device for closing said opening window which is highly reliable, and quick and easy to actuate.
  • laundry appliances normally have a spin drum rotatably mounted inside the casing of the appliance, and have two main possible configurations: front loading, in which the drum is accessible through a porthole positioned on the front of the casing, and top loading, in which the drum is accessible through the top of the casing.
  • the drum has a substantially cylindrical lateral wall and rotates around an horizontal axis of rotation.
  • the drum is normally provided with an opening window located on the lateral wall thereof.
  • a pair of lids are normally hinged on opposite sides of the window, said lids opening outwardly to allow the loading/unloading of clothes into/from the internal volume of the drum.
  • Document DE2061639 discloses a drum type washing machine which is loadable from the shell side of the laundry drum, wherein the drum shell lid is formed as a folding lid.
  • Document US3965704 discloses a drum for washer-extractor machines comprising: two end plates, connecting means between these plates and a shell consisting of a series of panels hinged with their longitudinal sides one to another. The first panel of the series is anchored to a component of said connecting means and the last panel is fitted with locking means cooperating with the component of the connecting means.
  • Document US1849342 discloses a washing machine comprising a cylinder provided with a collapsible door adapted to be extended to close the opening. The collapsible door comprises an upper door section and a lower door section hinged directly to each other.
  • Document US2556490 discloses a textile washing apparatus wherein the cylinder of the apparatus comprises four doors and each door comprises two curved hinged section portions.
  • Document EP1548170 discloses a door for rotating drum for washing machine and/or laundry dryer. The door has a flap mounted at the level of a side in rotation around an axle integrated to an edge of an opening. A flap is mounted at the level of a side in rotation on an opposite side. The two flaps are positioned at same side of the opening when the door is in open position such that inclination of the drum at side of the opening does not have flaps.
  • Document DE4426900 discloses a casing-loadable drum-type washing machine with a drum mounted rotatably in a tub and having a drum orifice closable by means of a drum lid and arranged in the drum casing.
  • the drum lid is formed from at least two individual elements which can be shifted telescopically one into the other.
  • a first drawback of know-type solutions is the relatively limited opening space available for loading/unloading of clothes.
  • the opening window positioned on the lateral wall of the drum normally has relatively limited dimensions, due to the need of limiting the size and encumbrance of the door assembly (e.g. lids) which is used to close the window.
  • the use two lids hinged on opposite sides of the opening window requires the use of both hands of the user for opening/closing them, making uncomfortable for the user the overall operation of opening/closing the lids and loading/unloading clothes, as his/her hands are at least partially occupied by the clothes to be loaded/unloaded.
  • the present invention relates to a top loading drum for laundry appliances according to claim 1.
  • the use of a closing device having a sliding portion and an articulated, foldable, portion allows increasing the opening space for accessing the drum, maintaining at the same time a relatively simple and easy-to-operate structure.
  • the closing device can be actuated (i.e. open/closed) even with one hand by the user.
  • the construction of the closing device with a sliding portion and a hinged, articulated, portion is optimal for load distribution to the drum body.
  • the load distribution from the door assembly (i.e. the closing device) to the drum body is more or less uniform and spread out on the drum surface.
  • the second, articulated, portion of the closing device follows the profile of the lateral wall of the drum when the closing device is in the closed position and is folded in the internal volume of the drum when the closing device is in the open position.
  • the objective of maximum opening dimension is therefore achieved with comparatively minimum penetration of the door assembly into the drum.
  • the articulated portion is closely adjacent to the lateral wall of the drum, while when the closing device is in the open position the articulated portion is confined in a limited portion on the upper side of the drum interior, with negligible loss of available internal volume for clothes.
  • the segments of the articulated portion of the closing device are preferably curved segments which have substantially the same curvature radius of the cylindrical lateral wall of drum.
  • the angle between two subsequent segments of the second articulated portion as measured form the interior of said drum is greater than 180°, and more preferably said angle is greater than 270°.
  • angles between the first end of the articulated, portion and the lateral wall of the drum and between the second end of the articulated portion and the sliding portion as measured form the interior of said drum are lower than 180°, and preferably lower than 90°.
  • the articulated portion is folded as much as possible inside the drum, thereby minimizing the occupied volume inside the drum.
  • the above angles are measured with reference to the tangents to the segments in correspondence of the connection points.
  • the closing device comprises elastic means, e.g. torsion springs, which are positioned in correspondence of one or more of said terminal hinged connections and/or intermediate hinged connections.
  • elastic means e.g. torsion springs
  • the elastic means positioned at appropriate hinged connections of the closing device actuate an automatic opening action of the door assembly, with an automatic collapsing movement of the articulated portion inside the drum and an automatic sliding movement of the sliding portion on the wall of the drum. It is worth noting that such operation can be carried out with one hand only and with little or no effort by the user.
  • a top loading drum for laundry appliances has a substantially cylindrical lateral wall 2 that defines an internal volume 3 of the drum 1 into which clothes are loaded for washing and/or drying purposes. Mounting of the drum 1 into the casing of the appliance, as well as its movement and functioning, can be made according to conventional practice and will not be described in details.
  • the drum 1 is provided with an opening 4 which is positioned on said lateral wall 2 for accessing the internal volume 3 and for loading/unloading clothes into/from it.
  • a closing device 5 for closing the opening 4 is also provided, said closing device 5 being movable between a closed position and an open position.
  • door assembly will also be used as an alternative to the term “closing device”.
  • the closing device 5 comprises a first, sliding, portion 6 which is slidingly coupled to the lateral wall 2 of the drum 1.
  • the sliding portion 6 is slidingly movable on said lateral wall 2 between the closed position and the open position. In the attached figure, the sliding portion 6 slides counterclockwise during opening and clockwise when closing.
  • the closing device 5 further comprises a second articulated portion 7 which has a first end 71 with a first terminal hinged connection 81 on the lateral wall 2 of the drum 1, and a second end 72 with a second terminal hinged connection 82 on the first sliding portion 6.
  • the second, articulated, portion 7 has a plurality of segments and is provided with at least one intermediate hinged connection between two subsequent segments of said plurality of segments.
  • the second articulated portion 7 comprises three segments 91, 92, 93.
  • the first segment 91 has a first end 71 with a first terminal hinged connection 81 on the lateral wall 2 of the drum 1;
  • the second segment 92 has a second end 72 with a second terminal hinged connection 82 on the first, sliding, portion 6;
  • the third segment 93 is positioned between said first 91 and second 92 segment, and is connected to said first 91 and second 92 segment through, respectively, a first intermediate hinged connection 83 and a second intermediate hinged connection 84.
  • the second articulated portion 7 comprises only two segments 91 and 92.
  • the first segment 91 has a first end 71 with a first terminal hinged connection 81 on the lateral wall 2 of the drum 1;
  • the second segment 92 has a second end 72 with a second terminal hinged connection 82 on the first, sliding, portion 6;
  • an intermediate hinged connection 85 is positioned between a second end 73 of said first segment 91 and a first end 74 of said second segment 92.
  • the closing device of figures 6 is more simple and easier to manufacture with respect to the previously described one; however the volume taken by the articulated portion 7 inside the drum 1 when the device is in the open position is larger than in the previous case.
  • the second articulated portion 7 follows the profile of the lateral wall 2 when the door assembly 5 is in the closed position (see figure 1 ), i.e. the segments 91, 92 and 93 are closely adjacent and parallel to the lateral wall 2 of the drum 1.
  • the situation is the same for the embodiment of figures 6 in which, when in the closed position, the segments 91 and 92 are closely adjacent and parallel to the lateral wall 2 of the drum 1.
  • the various segments 91-93 forming the second articulated portion 7 are preferably curved segments having substantially the same curvature radius of the cylindrical lateral wall 2 of the drum 1, so that no internal space of the drum 1 is occupied by them when the door assembly 5 is in the closed position.
  • the opening action of the door assembly 5 can be conveniently started by a "reverse" movement of the sliding portion 6 in the closing direction, i.e. clockwise in the attached figures.
  • the segments 91, 92 and 93 of the second articulated portion 7 are moved away from the lateral wall 2 and are projected inside the internal volume 3 of the drum 1.
  • the opening action of the door assembly 5 is continued by moving the sliding portion 6 in the opening direction, i.e. counterclockwise in the attached figures.
  • the second articulated portion 7 progressively "collapses", while the segments 91, 92 and 93 are folding on each other.
  • the door assembly 5 is completely open, i.e. the first sliding portion 6 is completely moved away from the opening 4 of the lateral wall 2 and the second articulated portion 7 is folded inside the internal volume 3 of the drum 1.
  • the number and length of the segments forming the second articulated portion 7 of the closing device 5 can be chosen according to the needs. In general, a higher number of relatively short segments brings about less internal volume taken when the second articulated portion 7 is folded inside the drum 1, as it can be seen by comparing the embodiments of figure 5 and figure 6 .
  • segment 91 in the embodiment of figures 1-5 , in the totally open position of figure 5 , the segment 91 is closely folded on segment 93 and the segment 92 is also closely folded on segment 93; then segment 91 is closely folded also on the lateral wall 2 of the drum 1, while segment 92 is closely folded on the first sliding portion 6.
  • the closing device 5 comprises elastic means which are positioned in correspondence of one or more of the terminal hinged connections 81, 82 and/or intermediate hinged connections 83, 84, 85.
  • Torsion springs are preferably used as elastic means, but other equivalent means can be used.
  • the elastic means e.g. torsion springs
  • the elastic means are positioned in correspondence of said first terminal hinged connection 71 and of said second intermediate hinged connection 84.
  • the action of the springs will prompt the folding action of the segments 91, 92 and 93 on each other and towards the lateral wall 2 of the drum 1, without the need of any manual action by the user.
  • top loading drum thus conceived, all falling within the scope of the present invention.
  • materials used and the contingent dimensions and shapes can be any, according to requirements and to the state of the art.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Claims (11)

  1. Topladertrommel (1) für Wäschebehandlungsmaschinen, die eine im Wesentlichen zylindrische Seitenwand (2), die ein Innenvolumen (3) der Trommel (1) definiert, eine Öffnung (4), die zum Zugreifen auf das Innenvolumen (3) auf der Seitenwand (2) positioniert ist, und eine Schließvorrichtung (5) zum Schließen der Öffnung (4), die zwischen einer geschlossenen Position und einer offenen Position bewegbar ist, aufweist, wobei die Schließvorrichtung (5) einen ersten, verschiebbaren, Abschnitt (6), der verschiebbar mit der Seitenwand (2) verbunden ist und auf der Seitenwand (2) zwischen der geschlossenen Position und der offenen Position verschiebbar bewegt werden kann, und einen zweiten, gelenkigen, Abschnitt (7), der ein erstes Ende (71) mit einer ersten Endgelenkverbindung (81) auf der Seitenwand (2) und ein zweites Ende (72) mit einer zweiten Endgelenkverbindung (82) auf dem ersten, verschiebbaren, Abschnitt (6) aufweist, umfasst, wobei der zweite, gelenkige, Abschnitt (7) mehrere Segmente (91, 92, 93) aufweist und mit mindestens einer Zwischengelenkverbindung (83, 84, 85) zwischen zwei folgenden Segmenten der mehreren Segmente (91, 92, 93) bereitgestellt ist, wobei der zweite, gelenkige, Abschnitt (7) ein erstes Segment (91) umfasst, das ein erstes Ende (71) mit einer ersten Endgelenkverbindung (81) auf der Seitenwand (2) aufweist, wobei ein zweites Segment (92) ein zweites Ende (72) mit einer zweiten Endgelenkverbindung (82) auf dem ersten, verschiebbaren, Abschnitt (6) aufweist; dadurch gekennzeichnet, dass der zweite, gelenkige, Abschnitt (7) ein drittes Segment (93), das zwischen dem ersten (91) und zweiten (92) Segment positioniert ist, eine erste Zwischengelenkverbindung (83), die das dritte Segment (93) mit dem ersten Segment (91) verbindet, und eine zweite Zwischengelenkverbindung (84), die das dritte Segment (93) mit dem zweiten Segment (92) verbindet, umfasst.
  2. Topladertrommel (1) nach Anspruch 1, dadurch gekennzeichnet, dass die Segmente (91, 92, 93) gewölbte Segmente sind, die im Wesentlichen denselben Wölbungsradius der zylindrischen Seitenwand (2) aufweisen.
  3. Topladertrommel (1) nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der zweite, gelenkige, Abschnitt (7) dem Profil der Seitenwand (2) folgt, wenn die Schließvorrichtung (5) in der geschlossenen Position ist, und in das Innenvolumen (3) der Trommel (1) geklappt ist, wenn die Schließvorrichtung (5) in der offenen Position ist.
  4. Topladertrommel (1) nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass in der offenen Position der Schließvorrichtung (5), wenn der gelenkige Abschnitt (7) so weit wie möglich in die Trommel (2) geklappt ist, der Winkel zwischen zwei folgenden Segmenten des zweiten gelenkigen Abschnitts (7), von dem Innenbereich (3) der Trommel (2) aus gemessen, größer als 180° ist.
  5. Topladertrommel (1) nach Anspruch 4, dadurch gekennzeichnet, dass der Winkel zwischen zwei folgenden Segmenten des zweiten gelenkigen Abschnitts (7), von dem Innenraum (3) der Trommel (1) aus gemessen, größer als 270° ist.
  6. Topladertrommel (1) nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass in der offenen Position der Schließvorrichtung (5), wenn der gelenkige Abschnitt (7) so weit wie möglich in die Trommel (2) geklappt ist, die Winkel zwischen dem ersten Ende (71) des zweiten, gelenkigen, Abschnitts (7) und der Seitenwand (2) der Trommel (1) und zwischen dem zweiten Ende (72) der zweiten, gelenkigen, Abschnitts (7) und dem ersten, verschiebbaren, Abschnitt (6) von dem Innenraum (3) der Trommel (1) aus gemessen kleiner als 180° sind.
  7. Topladertrommel (1) nach Anspruch 6, dadurch gekennzeichnet, dass die Winkel zwischen dem ersten Ende (71) des zweiten, gelenkigen, Abschnitts (7) und der Seitenwand (2) der Trommel (1) und zwischen dem zweiten Ende (72) des zweiten, gelenkigen, Abschnitts (7) und dem ersten, verschiebbaren, Abschnitt (6) kleiner als 90° sind.
  8. Topladertrommel (1) nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Schließvorrichtung (5) elastische Mittel umfasst, die in Übereinstimmung mit einer oder mehreren der Endgelenkverbindungen (81, 82) und/oder Zwischengelenkverbindungen (83, 84, 85) positioniert sind.
  9. Topladertrommel (1) nach Anspruch 1 und 8, dadurch gekennzeichnet, dass die Schließvorrichtung (5) elastische Mittel umfasst, die in Übereinstimmung mit der ersten Endgelenkverbindung (81) und/oder mit der zweiten Zwischengelenkverbindung (84) positioniert sind.
  10. Topladertrommel (1) nach Anspruch 8 und 9, dadurch gekennzeichnet, dass die elastischen Mittel Torsionsfedern sind.
  11. Topladertrommel (1) nach einem oder mehreren der Ansprüche 8 - 10, dadurch gekennzeichnet, dass die elastischen Mittel eine automatische Öffnungshandlung der Schließvorrichtung (5) auslösen.
EP14197248.9A 2014-12-10 2014-12-10 Toplader-Trommel für Wäschepflegegeräte Active EP3031970B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14197248.9A EP3031970B1 (de) 2014-12-10 2014-12-10 Toplader-Trommel für Wäschepflegegeräte

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14197248.9A EP3031970B1 (de) 2014-12-10 2014-12-10 Toplader-Trommel für Wäschepflegegeräte

Publications (2)

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EP3031970A1 EP3031970A1 (de) 2016-06-15
EP3031970B1 true EP3031970B1 (de) 2017-04-19

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Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1849342A (en) * 1929-05-27 1932-03-15 Justin T Flint Washer
US2556490A (en) * 1945-08-27 1951-06-12 Avco Mfg Corp Washing by intermittent high and low speed rotation
DE2061639A1 (de) * 1970-12-04 1972-06-08 Siemens Elektrogeraete Gmbh Trommelwaschmaschine mit einer von der Mantelseite beschickbaren Wäschetrommel
FR2242505B1 (de) * 1973-08-29 1978-11-03 Hogge Nv
DE4426900C2 (de) * 1993-08-11 1996-05-02 Miele & Cie Mantelbeschickbare Trommelwaschmaschine
FR2864114B1 (fr) * 2003-12-22 2006-04-21 Brandt Ind Porte de tambour rotatif, notamment pour machine a laver et ou secher le linge

Non-Patent Citations (1)

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

Also Published As

Publication number Publication date
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