EP0160288B1 - Water extracting press for laundry - Google Patents

Water extracting press for laundry Download PDF

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Publication number
EP0160288B1
EP0160288B1 EP85105162A EP85105162A EP0160288B1 EP 0160288 B1 EP0160288 B1 EP 0160288B1 EP 85105162 A EP85105162 A EP 85105162A EP 85105162 A EP85105162 A EP 85105162A EP 0160288 B1 EP0160288 B1 EP 0160288B1
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EP
European Patent Office
Prior art keywords
laundry
basket
press
lid
pressing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP85105162A
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German (de)
French (fr)
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EP0160288A3 (en
EP0160288A2 (en
Inventor
Berthold Dipl.-Ing. Magin
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MTM Obermaier GmbH and Co KG
Original Assignee
MTM Obermaier GmbH and Co KG
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Publication date
Priority claimed from DE19843416458 external-priority patent/DE3416458A1/en
Priority claimed from DE19848426718 external-priority patent/DE8426718U1/en
Application filed by MTM Obermaier GmbH and Co KG filed Critical MTM Obermaier GmbH and Co KG
Publication of EP0160288A2 publication Critical patent/EP0160288A2/en
Publication of EP0160288A3 publication Critical patent/EP0160288A3/en
Application granted granted Critical
Publication of EP0160288B1 publication Critical patent/EP0160288B1/en
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    • 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
    • D06F47/00—Apparatus of the press type for expelling water from the linen
    • D06F47/06—Apparatus of the press type for expelling water from the linen by a flexible diaphragm

Definitions

  • the invention relates to a laundry press with a perforated press basket and with a cover which can be placed thereon, under which an elastic membrane is fastened in a pressure-resistant manner according to the preamble of claim 1.
  • a two-stage laundry press is known with a perforated container in which the laundry coming out of the washing machine is first mechanically pre-pressed with the aid of a stamp. The container is then removed and the laundry cake is moved to the next processing station.
  • a bell-shaped lid is put over the laundry cake sitting on a perforated floor.
  • Inside the cover there is an elastic membrane that generates the actual pressure by pressing a pressure medium into the space between the cover and the membrane.
  • Another laundry press is known from FR-A-12 32 615.
  • This has an essentially cylindrical, perforated container which can be closed pressure-tight with a lid.
  • An elastic membrane is mounted under the lid.
  • the space between the membrane and the cover is filled with water as the pressure medium.
  • two pumps working in parallel are provided, a centrifugal pump, which conveys a large amount of the pressurized water in a short time, and a piston pump, which generates the high pressure.
  • a major disadvantage of all laundry presses working with elastic membranes is that the laundry items are damaged relatively frequently. Since the membranes have to expand under the action of the pressure medium, they are made of rubber or a comparable material. Rubber has a relatively high coefficient of friction compared to textiles. If the membrane expands, it also pulls the adhering laundry items; however, since these are not made of rubber, they tear.
  • the present invention is based on the object of developing the known laundry presses in such a way that damage to the laundry is avoided by the membrane which expands elastically under the action of the pressure medium.
  • the arrangement of the flexible plate between the rubber membrane and the laundry prevents direct contact between the rubber membrane and the laundry.
  • the plate which according to an advantageous development consists of hard rubber with a fabric insert, does not change its dimensions. Thanks to its flexibility, however, it can compensate for irregularities in the filling of the press basket, so that the pressure is transferred to all items of laundry as evenly as possible.
  • a bell can be put over the press basket and connected to it in a vacuum-tight manner.
  • the space between the bell and the press basket is then evacuated with the help of a vacuum pump.
  • the boiling point of the residual water in the laundry cake is reduced in a known manner, so that the moisture evaporates. As this happens at low temperatures, damage to the laundry is not to be expected.
  • the bell can simultaneously serve as a trough for collecting and draining the squeezed water.
  • a shoulder can be provided on the inside of the lid, which can be inserted with a precise fit into the press basket and the free end of which the membrane is attached.
  • a first, fast-conveying pump preferably a centrifugal or impeller pump
  • a second, pressure-generating pump preferably a piston pump
  • the press basket and the lid can be pivoted independently of one another in order to enable an efficient operating sequence.
  • the basket and lid pivot axes are arranged horizontally and coaxially with one another.
  • the press basket is pivoted through 180 degrees in order to empty the pressed laundry cake after the lid has been pivoted far away.
  • the cover Pivot axis arranged vertically and there are at least two press baskets that work together with only one lid.
  • one of the two press baskets always contains the laundry item to be dewatered, while at the same time the other press basket tilts over the already dewatered laundry cake and picks up a new laundry item.
  • the inner surface of the press basket is coated with a non-stick layer. It is a closed, smooth surface which has a non-stick effect compared to the pressed laundry items and thus prevents laundry items from sticking to the press basket.
  • Preferred materials are melamine resin or tetrafluoroethylene, which are coated as a thin layer on the inner surface of the press basket.
  • FIG. 1 shows a perspective view of a detail from a laundry.
  • a drum washing machine 1 from which the laundry reaches the laundry press 2 directly via a loading chute.
  • the laundry cake 11 is conveyed directly into one of the tumblers 13 via an unloading belt 12.
  • the unloading belt 12 can be moved laterally on rails.
  • the laundry press 2 contains a hemispherical press basket 3 which is perforated all around.
  • a lid 4 can be placed on the press basket 3.
  • a line 14 for the pressure medium, here water, leads into the cover 4.
  • the press basket 3 stands in a trough 6 which collects and drains the squeezed out laundry water.
  • Both the cover 4 and the press basket 3 can be pivoted with the aid of a hydraulic drive.
  • both pivot axes 8, 8 ' are horizontal and coaxial.
  • the press basket 3 and cover 4 are in the filling and pressing position.
  • the pressure medium fed via line 14 into the space between cover 4 and membrane 9 is first supplied via a centrifugal or impeller pump 5.
  • the piston pump 7, which can be seen on the front side and is hydraulically driven, takes over the pressure generation. In this way it is possible to generate pressures of 20 and more bar, without high pump wear occurring as in the currently commercially available systems.
  • the cover 4 is first pivoted to the right by more than 180 ° with the aid of the pivoting unit 8.
  • the unloading belt 12, if such is provided, moves into the position shown.
  • the box 10 which can be seen behind the press basket 3 with the cover 4 in place, accommodates the hydraulic units.
  • the press basket 3 can be pivoted or tilted via a holder 15.
  • the upper end of the press basket 3 is equipped with a circumferential flange 18.
  • the cover 4 can also be pivoted or tilted via a holder 16. It also has a circumferential flange 19. The flanges 18, 19 are held together by clamps 17 during the pressing process.
  • the elastic membrane 9 is fastened to the inside of the cover 4.
  • the space between cover 4 and membrane 9 can be filled or emptied via a line 14 with a pressure medium, for example water.
  • a flat, elastic plate 21 can be seen below the membrane 9 and connected to the membrane 9 by means of a fastening 22 below the membrane 9 and connected to the membrane 9 by means of a fastening 22, a flat, elastic plate 21 can be seen.
  • This plate 21 fits practically without play into the press basket 3.
  • the membrane 9 lies against the top of the plate 21 and presses it onto the laundry item in the press basket 3 (not shown). Since the membrane 9 no longer comes into direct contact with the items of laundry, damage to items of laundry due to the expanding membrane 9 can no longer occur.
  • pointed objects it is also no longer possible for pointed objects to be found in the laundry in professional laundry, forgotten screwdrivers, knives, tweezers, etc. can pierce the elastic membrane 9, which inevitably leads to destruction of the membrane due to the high pressure.
  • the pressure medium is withdrawn again from the space between the cover 4 and membrane 9 via the line 14.
  • the membrane 9 retracts into the interior of the lid and also takes the plate 21 with it via the connection 22.
  • the latter is equipped with a closed, smooth surface with a non-stick effect.
  • it can be coated with polytetrafluoroethylene or melamine resin.
  • FIG. 3 shows a further embodiment of the laundry press.
  • the cover 4 is fastened via its holder 16 to a guide 25 which swings on the vertical cover Kachse 24 is rotatably arranged and raised and lowered. In this way, the cover 4 can be lifted and pivoted to the side. There it can be placed on another press basket, so that the laundry is dewatered there, while the first press basket is tipped over.
  • the trough 6 shown in FIG. 1 for collecting the squeezed water is further developed into a bell 26 which can be connected in a vacuum-tight manner to the upper edge 18 of the press basket 3.
  • a vacuum pump which is connected to line 27, the space between bell 26 and press basket 3 can be placed under vacuum.
  • the boiling point of the residual water still in the wash is reduced, so that this residual water can be reduced further by evaporation.

Description

Die Erfindung betrifft eine Wäschepresse mit einem perforierten Preßkorb und mit einem darauf aufsetzbaren Deckel, unter dem eine elastische Membran druckfest befestigt ist gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a laundry press with a perforated press basket and with a cover which can be placed thereon, under which an elastic membrane is fastened in a pressure-resistant manner according to the preamble of claim 1.

Aus der DE-A-28 01 200 ist eine zweistufig arbeitende Wäschepresse bekannt mit einem perforierten Behälter, in dem die aus der Waschmaschine kommende Wäsche zunächst mit Hilfe eines Stempels mechanisch vorgepreßt wird. Anschließend wird der Behälter entfernt und der Wäschekuchen zur nächsten Bearbeitungsstation gefahren. Hier wird ein glockenförmiger Deckel über den auf einem perforierten Boden sitzenden Wäschekuchen gestülpt. Im Inneren des Deckels befindet sich eine elastische Membran, die den eigentlichen Preßdruck erzeugt, indem in den Zwischenraum zwischen Deckel und Membran ein Druckmedium gepreßt wird.From DE-A-28 01 200 a two-stage laundry press is known with a perforated container in which the laundry coming out of the washing machine is first mechanically pre-pressed with the aid of a stamp. The container is then removed and the laundry cake is moved to the next processing station. Here a bell-shaped lid is put over the laundry cake sitting on a perforated floor. Inside the cover there is an elastic membrane that generates the actual pressure by pressing a pressure medium into the space between the cover and the membrane.

Nachteilig an dieser Wäschepresse ist, daß sie in zwei Schritten arbeitet, so daß der vorgepreßte Wäschekuchen sich auf dem Weg von der ersten zur zweiten Preßstation öffnen kann. Dadurch können Teile der Wäsche in die Dichtfläche zwischen glockenförmigem Deckel und Boden eingeklemmt werden, was zu Beschädigungen führt.The disadvantage of this laundry press is that it works in two steps, so that the pre-pressed laundry cake can open on the way from the first to the second press station. As a result, parts of the laundry can be clamped in the sealing surface between the bell-shaped cover and the bottom, which leads to damage.

Eine weitere Wäschepresse ist bekannt aus der FR-A-12 32 615. Diese besitzt einen im wesentlichen zylindrischen, perforierten Behälter, der mit einem Deckel druckfest verschlossen werden kann. Unter dem Deckel ist eine elastische Membran montiert. Um den erforderlichen Preßdruck erzeugen zu können, wird der Zwischenraum zwischen Membran und Deckel mit Wasser als Druckmedium gefüllt. Hierzu sind zwei parallel arbeitende Pumpen vorgesehen, eine Kreiselpumpe, die eine große Menge des Druckwassers in kurzer Zeit fördert, und eine Kolbenpumpe, die den hohen Preßdruck erzeugt.Another laundry press is known from FR-A-12 32 615. This has an essentially cylindrical, perforated container which can be closed pressure-tight with a lid. An elastic membrane is mounted under the lid. In order to be able to generate the required pressure, the space between the membrane and the cover is filled with water as the pressure medium. For this purpose, two pumps working in parallel are provided, a centrifugal pump, which conveys a large amount of the pressurized water in a short time, and a piston pump, which generates the high pressure.

Ein wesentlicher Nachteil aller mit elastischen Membranen arbeitenden Wäschepressen ist, daß die Wäschestücke relativ häufig beschädigt werden. Da sich die Membranen unter der Wirkung des Druckmediums ausdehnen müssen, bestehen sie aus Gummi oder einem vergleichbaren Material. Gummi hat einen relativ hohen Reibungskoeffizienten gegenüber Textilien. Wenn sich die Membran ausdehnt, zieht sie auch die anhaftenden Wäschestücke mit; da diese jedoch nicht aus Gummi bestehen, zerreißen sie.A major disadvantage of all laundry presses working with elastic membranes is that the laundry items are damaged relatively frequently. Since the membranes have to expand under the action of the pressure medium, they are made of rubber or a comparable material. Rubber has a relatively high coefficient of friction compared to textiles. If the membrane expands, it also pulls the adhering laundry items; however, since these are not made of rubber, they tear.

Ein weiterer Nachteil der bekannten Wäschepresse besteht darin, daß beim Entladen des gepreßten Wäschepostens einzelne Wäscheteile an der Wand des Preßkorbs haften bleiben. Dabei zeigt die Erfahrung, daß die Haftung um so größer ist, je glatter die Wand des Preßkorbs gemacht wird. Derartige Wäschestücke müssen dann beispielsweise von Hand ausgeräumt werden.Another disadvantage of the known laundry press is that individual items of laundry stick to the wall of the press basket when the pressed item of laundry is unloaded. Experience shows that the smoother the wall of the press basket, the greater the adhesion. Such items of laundry then have to be cleared by hand, for example.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, die bekannten Wäschepressen derart weiterzubilden, daß Beschädigungen der Wäsche durch die sich unter der Wirkung des Druckmediums elastisch ausdehnende Membran vermieden werden.The present invention is based on the object of developing the known laundry presses in such a way that damage to the laundry is avoided by the membrane which expands elastically under the action of the pressure medium.

Diese Aufgabe wird gelöst durch eine gattungsgemäße Wäschepresse mit den Merkmalen gemäß Kennzeichen des Anspruchs 1.This object is achieved by a generic laundry press with the features according to the characterizing part of claim 1.

Durch die Anordnung der flexiblen Platte zwischen der Gummimembran und den Wäschestücken wird der direkte Kontaktzwischen Gummimembran und Wäsche verhindert. Die Platte, die gemäß einervorteilhaften Weiterbildung aus Hartgummi mit Gewebeeinlage besteht, verändert ihre Dimensionen nicht. Dank ihrer Flexibilität kann sie jedoch Ungleichmäßigkeiten bei der Füllung des Preßkorbes ausgleichen, so daß der Druck möglichst gleichmäßig auf alle Wäschestücke übertragen wird.The arrangement of the flexible plate between the rubber membrane and the laundry prevents direct contact between the rubber membrane and the laundry. The plate, which according to an advantageous development consists of hard rubber with a fabric insert, does not change its dimensions. Thanks to its flexibility, however, it can compensate for irregularities in the filling of the press basket, so that the pressure is transferred to all items of laundry as evenly as possible.

Unterstützt wird dieser Effekt noch durch die Halbkugelform des Preßkorbes, die dafür sorgt, daß die Wäschestücke bei fortschreitender Pressung sich in Richtung auf die Korbmitte hin bewegen, wodurch ein Einklemmen der Wäschestücke zwischen Preßkorbrand und Membran verhindert und Ungleichmaßigkeiten bei der Fullung des Preßkorbes ausgeglichen werden.This effect is further supported by the hemispherical shape of the press basket, which ensures that the items of laundry move towards the center of the basket as the pressing progresses, thereby preventing the items of laundry from becoming jammed between the press basket rim and the membrane and compensating for unevenness in the filling of the press basket.

Um den Entwässerungsgrad weiter steigern zu können, kann gemäß einer Weiterbildung der Erfindung über den Preßkorb eine Glocke gestülpt und mit diesem vakuumdicht verbunden sein. Mit Hilfe einer Vakuumpumpe wird dann der Zwischenraum zwischen Glocke und Preßkorb evakuiert. Dadurch wird in bekannter Weise der Siedepunkt des sich im Wäschekuchen befindenden Restwassers herabgesetzt, so daß die Feuchtigkeit ausdampft. Da dies bei geringen Temperaturen geschieht, sind Beschädigungen der Wäsche nicht zu erwarten.In order to be able to further increase the degree of drainage, according to a development of the invention, a bell can be put over the press basket and connected to it in a vacuum-tight manner. The space between the bell and the press basket is then evacuated with the help of a vacuum pump. As a result, the boiling point of the residual water in the laundry cake is reduced in a known manner, so that the moisture evaporates. As this happens at low temperatures, damage to the laundry is not to be expected.

Gemäß einer vorteilhaften Weiterbildung kann die Glocke gleichzeitig als Wanne zum Auffangen und Ableiten des ausgepreßten Wassers dienen.According to an advantageous development, the bell can simultaneously serve as a trough for collecting and draining the squeezed water.

Um ein Überdehnen der elastischen Membran zu vermeiden, kann an der Innenseite des Deckels ein Absatz vorgesehen sein, der paßgenau in den Preßkorb einführbar ist und an dessen freiem Ende die Membran befestigt ist. Hierbei wird beim Schließen des Deckels der Wäscheposten zunächst mechanisch zum Boden des Preßkorbs hin geschoben, bevor die Membran die Wäsche gleichmäßig gegen den preßkorb drückt.In order to avoid overstretching the elastic membrane, a shoulder can be provided on the inside of the lid, which can be inserted with a precise fit into the press basket and the free end of which the membrane is attached. When the lid is closed, the item of laundry is first pushed mechanically to the bottom of the press basket before the membrane presses the laundry evenly against the press basket.

Auch bei der erfindungsgemäßen Wäschepresse lassen sich eine erste, schnellfördernde Pumpe, vorzugsweise eine Kreisel- oder Flügelradpumpe, und eine zweite, druckerzeugende Pumpe, vorzugsweise eine Kolbenpumpe, zum Einbringen des Druckmediums verwenden.In the laundry press according to the invention, too, a first, fast-conveying pump, preferably a centrifugal or impeller pump, and a second, pressure-generating pump, preferably a piston pump, can be used to introduce the pressure medium.

Auch bei der erfindungsgemäßen Wäschepresse können Preßkorb und Deckel unabhängig voneinander verschwenkt werden, um einen rationellen Betriebsablauf zu ermöglichen.In the laundry press according to the invention, too, the press basket and the lid can be pivoted independently of one another in order to enable an efficient operating sequence.

Gemäß einer ersten Variante sind Korb- und Deckel-Schwenkachse waagrecht und koaxial zueinander angeordnet. Hierbei wird der Preßkorb um 180 Grad geschwenkt, um den ausgepreßten Wäschekuchen ausleeren zu können, nachdem der Deckel entsprechend weit weggeschwenkt wurde.According to a first variant, the basket and lid pivot axes are arranged horizontally and coaxially with one another. Here, the press basket is pivoted through 180 degrees in order to empty the pressed laundry cake after the lid has been pivoted far away.

Gemäß einer zweiten Variante ist die Deckel-Schwenkachse senkrecht angeordnet und es sind wenigstens zwei Preßkörbe vorgesehen, die mit nur einem Deckel zusammenarbeiten. Hierbei enthält einer der beiden Preßkörbe immer den gerade zu entwässernden Wäscheposten, während zur selben Zeit der andere Preßkorb den schon entwässerten Wäschekuchen auskippt und einen neuen Wäscheposten aufnimmt.According to a second variant, the cover Pivot axis arranged vertically and there are at least two press baskets that work together with only one lid. In this case, one of the two press baskets always contains the laundry item to be dewatered, while at the same time the other press basket tilts over the already dewatered laundry cake and picks up a new laundry item.

Gemäß einer vorteilhaften Ausgestaltung der Erfindung wird die Innenfläche des Preßkorbs mit einer Antihaftschicht beschichtet. Es handelt sich dabei um eine geschlossene, glatte Oberfläche, die gegenüber den ausgepreßten Wäschestücken einen Antihaft-Effekt aufweist und so das Haftenbleiben von Wäschestücken am Preßkorb verhindert.According to an advantageous embodiment of the invention, the inner surface of the press basket is coated with a non-stick layer. It is a closed, smooth surface which has a non-stick effect compared to the pressed laundry items and thus prevents laundry items from sticking to the press basket.

Bevorzugte Materialien sind Melaminharz oder Tetrafluoräthylen, die als dünne Schicht auf die Innenfläche des Preßkorbs auflackiert werden.Preferred materials are melamine resin or tetrafluoroethylene, which are coated as a thin layer on the inner surface of the press basket.

Anhand der Zeichnung soll die Erfindung in Form eines Ausführungsbeispieles näher erläutert werden.The invention will be explained in more detail in the form of an exemplary embodiment with reference to the drawing.

Es zeigen:

  • Fig. 1 in perspektivischer Darstellung einen Ausschnitt aus einer Wäscherei,
  • Fig. 2 einen Querschnitt durch eine Wäschepresse gemäß Fig. 1 und
  • Fig. 3 eine Seitenansicht einer abgewandelten Wäschepresse.
Show it:
  • 1 is a perspective view of a section of a laundry,
  • Fig. 2 shows a cross section through a laundry press according to FIG. 1 and
  • Fig. 3 is a side view of a modified laundry press.

In Fig. 1 erkennt man in perspektivischer Darstellung einen Ausschnitt aus einer Wäscherei. Am linken Rand befindet sich eine Trommelwaschmaschine 1, aus der die Wäsche über eine Beladungsrutsche direkt in die Wäschepresse 2 gelangt. Nach dem Entwässern wird der Wäschekuchen 11 über ein Entladeband 12 direkt in einen der Tumbler 13 gefördert. Hierzu ist das Entladeband 12 auf Schienen seitlich verfahrbar.1 shows a perspective view of a detail from a laundry. On the left edge there is a drum washing machine 1, from which the laundry reaches the laundry press 2 directly via a loading chute. After dewatering, the laundry cake 11 is conveyed directly into one of the tumblers 13 via an unloading belt 12. For this purpose, the unloading belt 12 can be moved laterally on rails.

Die Wäschepresse 2 enthält einen halbkugelförmigen Preßkorb 3, der ringsum perforiert ist. Auf den Preßkorb 3 aufsetzbar ist ein Deckel 4. Eine Leitung 14 für das Druckmedium, hier Wasser, führt in den Deckel 4. Der Preßkorb 3 steht in einer Wanne 6, die das ausgepreßte Wäschewasser auffängt und ableitet.The laundry press 2 contains a hemispherical press basket 3 which is perforated all around. A lid 4 can be placed on the press basket 3. A line 14 for the pressure medium, here water, leads into the cover 4. The press basket 3 stands in a trough 6 which collects and drains the squeezed out laundry water.

Sowohl der Deckel 4 als auch der Preßkorb 3 sind mit Hilfe je eines Hydraulikantriebes schwenkbar. Im Ausführungsbeispiel liegen beide Schwenkachsen 8, 8' waagerecht und koaxial.Both the cover 4 and the press basket 3 can be pivoted with the aid of a hydraulic drive. In the exemplary embodiment, both pivot axes 8, 8 'are horizontal and coaxial.

In der auf der linken Seite dargestellten Stellung befinden sich Preßkorb 3 und Deckel 4 in der Füll- und Preßstellung. Das über die Leitung 14 in den Zwischenraum zwischen Deckel 4 und Membran 9 geführte Druckmedium wird zunächst über eine Kreisel- oder Flügelradpumpe 5 geliefert. Sobald die Membran so weit aufgebläht ist, daß die Wäsche überall gleichmäßig am Innenrand des Preßkorbs 3 anliegt, übernimmt die an der Vorderseite zu erkennende Kolbenpumpe 7, die hydraulisch angetrieben wird, die Druckerzeugung. Es ist auf diese Weise möglich, Drücke von 20 und mehr bar zu erzeugen, ohne daß dabei ein hoher Pumpenverschleiß wie bei den derzeit handelsüblichen Anlagen auftritt.In the position shown on the left side, the press basket 3 and cover 4 are in the filling and pressing position. The pressure medium fed via line 14 into the space between cover 4 and membrane 9 is first supplied via a centrifugal or impeller pump 5. As soon as the membrane is inflated to such an extent that the laundry lies evenly everywhere on the inner edge of the press basket 3, the piston pump 7, which can be seen on the front side and is hydraulically driven, takes over the pressure generation. In this way it is possible to generate pressures of 20 and more bar, without high pump wear occurring as in the currently commercially available systems.

Sobald die Wäsche ausgepreßt ist, wird zunächst der Deckel 4 mit Hilfe des Schwenkaggregats 8 um mehr als 180° nach rechts geschwenkt. Man erkennt dort den Deckel 4' in der geöffneten Stellung, wobei in der Innenseite des Deckels die Membran 9 sichtbar wird. Anschließend fährt das Entladeband 12, wenn ein solches vorgesehen ist, in die dargestellte Position. Der über sein Schwenkaggregat 8' in die Entladeposition gebrachte Preßkorb 3' kippt den Wäschekuchen 11 aus.As soon as the laundry is pressed out, the cover 4 is first pivoted to the right by more than 180 ° with the aid of the pivoting unit 8. The cover 4 'can be seen there in the open position, the membrane 9 being visible in the inside of the cover. Then the unloading belt 12, if such is provided, moves into the position shown. The press basket 3 'brought into the unloading position via its swivel unit 8' tilts out the laundry cake 11.

Der hinter dem Preßkorb 3 mit aufgesetztem Deckel 4 erkennbare Kasten 10 nimmt die Hydraulikaggregate auf.The box 10, which can be seen behind the press basket 3 with the cover 4 in place, accommodates the hydraulic units.

In Fig. 2 erkennt man einen Querschnitt durch die Wäschepresse. Der Preßkorb 3 ist über eine Halterung 15 schwenkbar bzw. kippbar. Das obere Ende des Preßkorbs 3 ist mit einem umlaufenden Flansch 18 ausgerüstet.2 shows a cross section through the laundry press. The press basket 3 can be pivoted or tilted via a holder 15. The upper end of the press basket 3 is equipped with a circumferential flange 18.

Auch der Deckel 4 ist über eine Halterung 16 schwenkbar bzw. kippbar. Er besitzt ebenfalls einen umlaufenden Flansch 19. Die Flansche 18, 19 werden während des Preßvorganges durch Klammern 17 zusammengehalten.The cover 4 can also be pivoted or tilted via a holder 16. It also has a circumferential flange 19. The flanges 18, 19 are held together by clamps 17 during the pressing process.

An der Innenseite des Deckels 4 ist die elastische Membran 9 befestigt. Der Zwischenraum zwischen Deckel 4 und Membran 9 ist über eine Leitung 14 mit einem Druckmedium, beispielsweise Wasser, füllbar bzw. entleerbar.The elastic membrane 9 is fastened to the inside of the cover 4. The space between cover 4 and membrane 9 can be filled or emptied via a line 14 with a pressure medium, for example water.

Unterhalb der Membran 9 und mit Hilfe einer Befestigung 22 mit der Membran 9 verbunden, erkennt man eine ebene, elastische Platte 21. Diese Platte 21 paßt praktisch ohne Spiel in den Preßkorb 3. Sobald im Zwischenraum zwischen Deckel 4 und Membran 9 Druck erzeugt wird, legt sich die Membran 9 an die Oberseite der Platte 21 an und drückt diese auf den im Preßkorb 3 sich befindenden Wäscheposten (nicht dargestellt). Da die Membran 9 mit dem Wäscheposten nicht mehr direkt in Berührung kommt, können Beschädigungen von Wäschestücken durch die sich dehnende Membran 9 nicht mehr vorkommen. Außerdem ist es auch nicht mehr möglich, daß spitze Gegenstände in der Wäsche in Berufswäsche findet man sehr häufig vergessene Schraubendreher, Messer, Pinzetten usw. die elastische Membran 9 durchstechen können, was wegen des hohen Drucks unweigerlich zu Zerstörung der Membran führt.Below the membrane 9 and connected to the membrane 9 by means of a fastening 22, a flat, elastic plate 21 can be seen. This plate 21 fits practically without play into the press basket 3. As soon as pressure is generated in the space between the cover 4 and membrane 9, the membrane 9 lies against the top of the plate 21 and presses it onto the laundry item in the press basket 3 (not shown). Since the membrane 9 no longer comes into direct contact with the items of laundry, damage to items of laundry due to the expanding membrane 9 can no longer occur. In addition, it is also no longer possible for pointed objects to be found in the laundry in professional laundry, forgotten screwdrivers, knives, tweezers, etc. can pierce the elastic membrane 9, which inevitably leads to destruction of the membrane due to the high pressure.

Sobald der Wäscheposten genügend ausgepreßt ist, wird das Druckmedium aus dem Zwischenraum zwischen Deckel 4 und Membran 9 über die Leitung 14 wieder abgezogen. Dabei zieht sich die Membran 9 in das Deckelinnere zurück und nimmt über die Verbindung 22 auch die Platte 21 mit.As soon as the laundry item has been squeezed out sufficiently, the pressure medium is withdrawn again from the space between the cover 4 and membrane 9 via the line 14. The membrane 9 retracts into the interior of the lid and also takes the plate 21 with it via the connection 22.

Um das Anhaften einzelner Wäschestücke an der Innenfläche 12 des Preßkorbs 3 sicher ausschließen zu können, ist diese mit einer geschlossenen glatten Oberfläche mit Antihaft-Effekt ausgerüstet. Beispielsweise kann sie mit polytetrafluoräthylen oder Melaminharz beschichtet sein.In order to be able to safely rule out the adhesion of individual laundry items to the inner surface 12 of the press basket 3, the latter is equipped with a closed, smooth surface with a non-stick effect. For example, it can be coated with polytetrafluoroethylene or melamine resin.

In Fig. 3 erkennt man eine weitere Ausführungsform der Wäschepresse. Der Deckel 4 ist über seine Halterung 16 an einer Führung 25 befestigt, die an der senkrecht stehenden Deckelschwenkachse 24 drehbar sowie heb- und senkbar angeordnet ist. Auf diese Weise kann der Deckel 4 gehoben und zur Seite geschwenkt werden. Dort kann er auf einen weiteren Preßkorb aufgesetzt werden, so daß dort die Wäsche entwässert wird, während der erste Preßkorb ausgekippt wird.3 shows a further embodiment of the laundry press. The cover 4 is fastened via its holder 16 to a guide 25 which swings on the vertical cover Kachse 24 is rotatably arranged and raised and lowered. In this way, the cover 4 can be lifted and pivoted to the side. There it can be placed on another press basket, so that the laundry is dewatered there, while the first press basket is tipped over.

Die in Fig. 1 dargestellte Wanne 6 zum Auffangen des ausgepreßten Wassers ist zu einer Glocke 26 weitergebildet, die mit dem oberen Rand 18 des Preßkorbs 3 vakuumdicht verbunden werden kann. Mit Hilfe einer Vakuumpumpe, die an die Leitung 27 angeschlossen wird, kann der Zwischenraum zwischen Glocke 26 und Preßkorb 3 unter Vakuum gesetzt werden. Dadurch wird der Siedepunkt des in der Wäsche sich noch befindenden Restwassers herabgesetzt, so daß dieses Restwasser durch Ausdampfen weiter reduziert werden kann.The trough 6 shown in FIG. 1 for collecting the squeezed water is further developed into a bell 26 which can be connected in a vacuum-tight manner to the upper edge 18 of the press basket 3. With the help of a vacuum pump, which is connected to line 27, the space between bell 26 and press basket 3 can be placed under vacuum. As a result, the boiling point of the residual water still in the wash is reduced, so that this residual water can be reduced further by evaporation.

Claims (9)

1. A laundry press comprising a perforated pressing basket (3), comprising a lid (4) which can be positioned on the basket and beneath which an elastic diaphragm (9) is attached so as to be pressure-resistant, where the pressing basket (3) can be tilted about a horizontal axis (8') for emptying and the lid (4) can be raised, lowered and swivelled independently of the pressing basket (3), and comprising a device (5,7) for introducing a pressure medium into the space between the lid (4) and the diaphragm (9), characterised in that the pressing basket (3) is approximately semi-spherical and that in the pressing basket (3) is arranged a flexible plate (21) which is connected to the diaphragm (9) and which, under the influence of the diaphragm (9), is pressed onto the batch of laundry which is to be pressed.
2. A laundry press as claimed in Claim 1, characterised in that a dome (26) is provided which can be inverted over the pressing basket (3) and can be connected thereto in vacuum-tight fashion, and that a vacuum pump is provided with the aid of which the space between the dome (26) and the pressing basket (3) can be evacuated.
3. A laundry press as claimed in Claim 2, characterised in that the dome (26) serves as a trough for collecting and draining the extracted water.
4. A laundry press as claimed in Claim 1, 2 or 3, characterised in that on the inside of the lid (4) is arranged a shoulder which can be fitted precisely into the pressing basket (3), and that the diaphragm (9) is attached to the free end of this shoulder.
5. A laundry press as claimed in at least one of the Claims 1 to 4, characterised in that the device for introducing the pressure medium comprises a first, fast-acting pump (5), preferably a centrifugal or impeller pump, and a second pressure- generating pump (7), preferably a piston pump.
6. A laundry press as claimed in at least one of the Claims 1 to 5, characterised in that the basket and lid swivel axes (8, 8') are arranged horizontally and co-axially.
7. A laundry press as claimed in at least one of the Claims 1 to 5, characterised in that the lid swivel axis (24) is arranged vertically and that at least two pressing baskets (3) are provided for one lid (4).
8. A laundry press as claimed in at least one of the Claims 1 to 7, characterised in that the flexible plate (21) is made of hard rubber with a textile insert.
9. A laundry press as claimed in at least one of the Claims 1 to 8, characterised in that the inner surface (23) of the pressing basket (3) is coated with an anti-adhesive layer, preferably made of polytetrafluorethylene or melamine resin.
EP85105162A 1984-05-04 1985-04-27 Water extracting press for laundry Expired - Lifetime EP0160288B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3416458 1984-05-04
DE19843416458 DE3416458A1 (en) 1984-05-04 1984-05-04 Laundry press
DE8426718U 1984-09-11
DE19848426718 DE8426718U1 (en) 1984-09-11 1984-09-11 LAUNDRY PRESS

Publications (3)

Publication Number Publication Date
EP0160288A2 EP0160288A2 (en) 1985-11-06
EP0160288A3 EP0160288A3 (en) 1987-07-01
EP0160288B1 true EP0160288B1 (en) 1990-06-20

Family

ID=25820882

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Application Number Title Priority Date Filing Date
EP85105162A Expired - Lifetime EP0160288B1 (en) 1984-05-04 1985-04-27 Water extracting press for laundry

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US (1) US4741184A (en)
EP (1) EP0160288B1 (en)
DE (1) DE3578341D1 (en)

Families Citing this family (3)

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HUP0401541A2 (en) * 2004-07-30 2007-10-29 Arpad Fischer Multifunctional washing mashine and washing method
CN104260399A (en) * 2014-09-18 2015-01-07 江苏海狮机械集团有限公司 Squeezing device in cloth grass squeezing machine
KR200489401Y1 (en) * 2019-04-02 2019-06-12 전병진 Dehydrated rubber pail of Continuous washing machine

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US1993201A (en) * 1927-03-21 1935-03-05 Williams White & Company Clothes drying apparatus
DE561177C (en) * 1931-03-08 1932-10-13 Friedrich Schmidt Laundry press
DE648293C (en) * 1933-10-07 1937-07-28 Wilhelm Ihmig Laundry press
US2685189A (en) * 1950-02-09 1954-08-03 Huebsch Mfg Company Compression extractor
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FR1232615A (en) * 1959-07-17 1960-10-11 American Laundry Mach Co Pressure wringer
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AT319880B (en) * 1972-11-13 1975-01-10 Meyer Arnfried Device for draining laundry
DE2311013C3 (en) * 1973-03-06 1984-08-30 Hans F. 7120 Bietigheim-Bissingen Arendt Cycle press for dewatering wet laundry
ATA753273A (en) * 1973-08-30 1975-01-15 Meyer Arnfried BELLOWS PRESS FOR EXTRACTION OF LIQUID
DE2362903A1 (en) * 1973-12-18 1975-06-26 Continental Gummi Werke Ag PRESSURE CUSHION MADE OF RUBBER OR RUBBER-LIKE MATERIALS FOR PRESSING
FR2267145B1 (en) * 1974-04-13 1980-08-08 Strahlen Umweltforsch Gmbh
GB1512117A (en) * 1976-06-23 1978-05-24 G S Compactors Ltd Compacting material in skips
US4101285A (en) * 1976-09-27 1978-07-18 Tilby Sydney E Methods and apparatus for extracting juices from juice-laden solid materials
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DE2801200A1 (en) * 1978-01-12 1979-07-19 Heinz Herbertz Dewatering press for batches of linen from washer - manipulates carrier and membrane which lock into linen container
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US4452056A (en) * 1983-04-27 1984-06-05 Pellerin Milnor Corporation Liquid extracting apparatus

Also Published As

Publication number Publication date
EP0160288A3 (en) 1987-07-01
US4741184A (en) 1988-05-03
DE3578341D1 (en) 1990-07-26
EP0160288A2 (en) 1985-11-06

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