EP2044253B1 - Washing machine with hollow drivers - Google Patents
Washing machine with hollow drivers Download PDFInfo
- Publication number
- EP2044253B1 EP2044253B1 EP07765529A EP07765529A EP2044253B1 EP 2044253 B1 EP2044253 B1 EP 2044253B1 EP 07765529 A EP07765529 A EP 07765529A EP 07765529 A EP07765529 A EP 07765529A EP 2044253 B1 EP2044253 B1 EP 2044253B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- entrainer
- barrier
- drum
- washing machine
- inlet 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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- 238000005406 washing Methods 0.000 title claims abstract description 36
- 230000004888 barrier function Effects 0.000 claims abstract description 45
- 238000000034 method Methods 0.000 claims description 3
- 239000011796 hollow space material Substances 0.000 abstract 2
- 239000002585 base Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000009736 wetting Methods 0.000 description 5
- 101150114468 TUB1 gene Proteins 0.000 description 4
- 239000003599 detergent Substances 0.000 description 4
- 239000003513 alkali Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000000969 carrier Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 210000002816 gill Anatomy 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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
- D06F37/06—Ribs, lifters, or rubbing means forming part of the receptacle
- D06F37/065—Ribs, lifters, or rubbing means forming part of the receptacle ribs or lifters having means for circulating the washing liquid
Definitions
- the invention relates to a washing machine with a horizontally rotatably driven in a tub laundry drum and arranged on the inside of a drum shell, hollow carriers, each having a driver base in the course of the drum shell, is introduced into the at least one inlet opening, wherein proportions of a in lye located at the bottom of the tub through the corresponding inlet opening into the cavity of the driver and pour into the interior of the laundry drum after further rotation of the laundry drum in a raised position of the driver from the cavity via outlet openings in the ridge portion of the driver remote from the driver base, and a method for operating the washing machine.
- Such a washing machine is off DE 38 03 195 A1 known in the fleet flows through introduced into side flanks of the driving rib Schöpflöcher into the cavity and pours from there with rotating laundry drum from higher position from the outlet openings on the laundry.
- For pouring the laundry in both directions of rotation Schöpflöcher are closed by internal, movable seals.
- the seals of the forward in the direction of rotation Schöpflöcher be opened by the generated during the drum rotation back pressure of the liquor or free liquor, and accordingly the rear Schöpflöcher be closed.
- Such an arrangement is structurally relatively expensive and susceptible to wear because of the moving parts.
- Another designed as a scoop driving rib is for example off DD-PS 37,560 known.
- DD-PS 37,560 are within the Mit psychologyhöhlen blades arranged.
- When driving through the bottom of the sump standing sump scoop on the drum shell projecting parts of the blades Fleet that they promote in the upward movement on the arranged in the flank of the driver hole in the drum interior.
- Such blades and arranged in the flanks of the driver holes are not very suitable to effectively wet the laundry lying within the drum.
- the scooped water quantity is namely already flow when scooping under the resulting in Mit Anlagen basically back pressure immediately after the exit of the driver from the sump on the perforation in the Mit recruitingflanken and then flow back along the inner wall of the drum to the sump, without having significantly wetted the laundry.
- Another washing machine drum designed as a scoop driving ribs is made EP 0 245 721 A1 known, in which the Mitatoryhöhlen are arranged by a drum contour in the contour, the blades leaves having driver base and divided into chambers transversely to the drum axis. At least one respective airfoil is assigned to the chambers, so that the airfoils of respectively adjacent chambers are assigned to different directions of rotation of the drum and aligned oppositely to the airfoil of the adjacent chamber and wherein the scooping devices are designed and arranged so that they at the earliest from a height during the wetting phase in the area of the second eighth of the drum rotation, calculated from the lowest point, until the end of the seventh eighth of the drum rotation at the latest into the drum interior. In this arrangement, however, the entrained liquor volume of the driving ribs is comparatively small.
- the washing machine is equipped with a washing drum horizontally rotatably driven in a tub around an axis A.
- the laundry drum protrude hollow carriers that take the laundry with a drum rotation; their number is not limited and is typically three.
- each driver at least one inlet opening is introduced, flow through the amounts of a located in the lower vertex (6 o'clock position) of the tub free fleet into the associated Mit supportivehöhle; the number of inlet openings is not limited.
- the lye present in the driver cavity pours into the interior of the laundry drum, typically via pouring openings in the ridge region of the driver.
- the inlet opening is introduced into a driving floor arranged in the jacket of the laundry drum.
- solid barrier is present, which forms an open chamber. Liquor flowing over the barrier is retained in the chamber.
- the chamber is designed and arranged so that upon rotation of the laundry drum through the free liquor or the lye supply the barrier is even filled with entering from the associated inlet opening liquor when the level of the liquor level is lower than the upper edge of the barrier. This is effected by the fact that the kinetic energy of the liquor flowing into the cavity of the driver or its dynamic pressure sufficient to overcome the barrier.
- the liquor is flushed through the inlet opening with a kinetic energy available to the laundry drum.
- the lye hits the barrier, it overflows and gets into the chamber behind the barrier.
- the barrier rises from the Mitauerière, but does not have to be part of the drum contour, but z. B. be designed as an insert.
- the barrier since it does not need to be structured and no moving parts are needed, can be easily and inexpensively manufactured and inserted and operated wear. Due to the fact that the chamber can be filled beyond the fill level of the liquor supply and generally shows a good retention effect, a comparatively large amount of liquor can be entrained and poured out over the laundry. Due to the thus increased washing effect per unit time (washing efficiency), a shorter program time can be achieved, which in turn allows a reduction of the heating time and thus the energy consumption. On the other hand, alternatively, the total amount of the wash liquor can be reduced, which also causes a reduction in energy consumption and also water consumption because of the lower heating power required.
- the height, shape and position of the barrier are chosen so that a maximum filling depending on, inter alia, the rotational speed of the drum and the filling level of the liquor results.
- These parameters are typically set for the various washing phases (wetting phase, rinsing phase, etc.) by a control program so that the barrier is structurally tunable to the particular washing machine.
- the barrier is tilted away from the associated inlet opening because it allows the liquor to flow well over the barrier, which is also conveniently present as a wall running parallel to the drum shell.
- the barrier may be an additional rib attached to the drum contour, e.g. B. by riveting or welding.
- the chamber may also be a trough-like insert in the driver, the tub bottom rests at least partially on the driver bottom.
- the barrier then corresponds to a wall of the tub, wherein the other wall, for example, rests against a driver flank or spaced parallel thereto or even (mit-) is formed by the Mit instructionalflanke.
- the barrier or wall can be used as an inwardly folded edge region
- the inlet opening for example, as inwardly encircling Umbug the - preferably slot-shaped - inlet opening is formed.
- the inlet opening is provided with a pump disposed on the outer circumference Schöpfvortechnisch, z. B. a ladle, which opens to the direction of rotation.
- the drivers can be divided in a direction parallel to the drum shell in several departments, which are alternately aligned in opposite directions of rotation and only in these show the desired effect.
- the departments can z. B. be constructed mirrored in the direction of rotation.
- the tub 1 a washing machine in Fig. 1 contains in its upper part an inlet opening 2 for lye.
- the liquor may consist of water or of a mixture of detergents introduced from a detergent dispenser 3 together with feed water.
- the bottom of the lye container 1, which is held at the shortest possible distance from the laundry drum 4, has a depression 5 in which the radiators 6 required for heating the lye (shown in dashed lines) are arranged.
- an outlet opening 7 is attached, which is kept closed by a closure body 8, as long as a (not shown) drain pump on the drain line 9 does not suck.
- This closure body 8 has the task of keeping the space below the drain opening 7 closed as long as there is required for washing the laundry 10 detergent within the tub 1:
- this scooped amount of liquor is first temporarily stored and then discharged via outlet openings in the ridge region of the driver 11 into the drum interior, when the driver 11 has reached a certain height above the lying in the drum 4 laundry 10.
- arrows R is indicated, in which way the lye raised in this way rains over the laundry 10.
- the lowest of the three internally mounted, structurally identical driver 11 is just in its lowest position (lower vertex, 6 o'clock position). He dips into the free liquor at the bottom of the tub and takes about the equipped with the gill-like scooping device 12 inlet opening 14 which is incorporated in the drum shell, liquor (dotted shown) in its cavity 13.
- liquor dotted shown
- outlet openings 15 are introduced, which are here above the liquor level Nv.
- the liquor level Nv is typically filled at a level-based fill to a predetermined value set in a wash program.
- Another driver 11, marked on the top left, has already reached such a high position that it leaches out of the outlet openings 15 into the interior of the drum, as indicated by the arrows R.
- the driver 11, shown at the top right, is already emptied and, after passing through the remaining rotation, can again draw lye from the supply standing in the tub 1 below.
- Fig. 4 shows driver 11 'of a washing machine according to the invention, in each of which a slot-shaped inlet opening 14' in a arranged in the drum contour Mit Siemensgeber 42 is introduced.
- the inlet opening 14 ' is each equipped with a ladle 12'.
- washing drum 4 is now in the respective cavity 13 'in the direction of rotation D behind the inlet opening 14' from the driver base 42 and the drum shell 41 rising, solid barrier 17 is present.
- an open chamber 18 is formed in the cavity 13 '.
- the open chamber 18 is thus limited by the barrier 17, the driver base 42 and an edge of the respective driver 11 '.
- the barrier 17 of the driver 11 ' is wall-shaped and rises from the respective inlet opening 14' starting at an angle in the cavity 13 'at.
- the upper edge 171 of the barrier 17 in the 6 o'clock position of the driver 11 ' is higher than the set alkali level Nv.
- Fig. 5 shows the laundry drum off Fig. 4 after further rotation in direction of rotation D.
- the barrier 17 the liquor in its chamber 18, even after a decrease in the dynamic pressure back when the lower driver 11 'was raised to the liquor level Nv. This allows a more than 80% higher entrained liquor volume in the driver 11 'compared to the driver 11 in Fig. 3 be achieved.
- the tub When operating the washing machine, z. B., in a wetting, washing or rinsing phase, the tub is first filled with liquor, typically level-based to a level Nv. Then the laundry drum 4 is rotated. During the passage of the driver through the lye supply or the free liquor liquor flows through the inlet opening (s) 14 'in the cavity 13'. If the level level Nv is lower than the bottom 42 of the driver 11 'in the 6 o'clock position, correspondingly its lower vertex, in the inventive design of the laundry drum 4, the liquor can still wash over the barrier 17 and be collected or stored in the chamber 18.
- the driver 11 ' Upon further rotation of the laundry drum 4, the driver 11 'is brought into a raised position, in which the liquor flows from the chamber 18 to the outlet openings 15', and flows through them into the laundry drum 4.
- the outlet openings 15 ' are preferably in the upper region of each driver 11' the ridge region. This ensures that a high entrained liquor volume does not rain out of the driver until it is far above the laundry.
- the inlet opening 14 ' may be a single opening, e.g. B. slotted with or without gills, or there may be more inlet openings per Mit Economics convinced 42, z. B. several slots or holes.
- the driver 11 ' may be divided into compartments arranged parallel to the driver base 42, which is also parallel to the longitudinal axis of the driver 11'. This is particularly advantageous if the laundry drum 4 is to perform the moistening process in both directions of rotation. Then, for example, the compartments can be effective alternately in opposite directions of rotation, for. B. by alternating to a direction of rotation reversed arrangement of the design features.
- the barrier is also advantageous in the retention of liquor in the driver when the liquor level Nv when passing through the liquor supply over the edge 171 of the barrier. Although then compared to the undivided cavity 13 'entrained liquor volume is no longer so large; however, it is higher than a split cavity without a barrier.
- the barrier 17 can, as in Fig. 6 shown to be formed as an additional rib 19, the here, z. B., riveted, but can also be fixed elsewhere. As in Fig. 7 shown, it is also possible that the barrier 17 is formed by a trough-like insert 18 in the driver 11 ', the trough bottom 201 at least partially rests on Mit Converseboden 42.
- the tub can be made, for example Metal or plastic.
- the barrier 17, in particular if it is to be formed of flat material can be formed as an inwardly folded edge region 21 of the inlet opening, as in FIG Fig. 8 shown.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Devices For Medical Bathing And Washing (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
Description
Die Erfindung betrifft eine Waschmaschine mit einer in einem Laugenbehälter horizontal drehbar angetriebenen Wäschetrommel und mit an der Innenseite eines Trommelmantels angeordneten, hohlen Mitnehmern, die im Zuge des Trommelmantels jeweils einen Mitnehmerboden aufweisen, in den mindestens eine Einlassöffnung eingebracht ist, wobei Mengenanteile aus einer sich im unteren Scheitel des Laugenbehälters befindlichen Lauge durch die entsprechende Einlassöffnung in den Hohlraum des Mitnehmers einfließen und sich nach einer weiteren Drehung der Wäschetrommel in eine angehobene Position des Mitnehmers aus dem Hohlraum über Auslassöffnungen im vom Mitnehmerboden entfernten Firstbereich des Mitnehmers in das Innere der Wäschetrommel ergießen, sowie ein Verfahren zum Betreiben der Waschmaschine.The invention relates to a washing machine with a horizontally rotatably driven in a tub laundry drum and arranged on the inside of a drum shell, hollow carriers, each having a driver base in the course of the drum shell, is introduced into the at least one inlet opening, wherein proportions of a in lye located at the bottom of the tub through the corresponding inlet opening into the cavity of the driver and pour into the interior of the laundry drum after further rotation of the laundry drum in a raised position of the driver from the cavity via outlet openings in the ridge portion of the driver remote from the driver base, and a method for operating the washing machine.
Eine solche Waschmaschine ist aus
Eine weitere als Schöpfvorrichtung ausgebildete Mitnehmerrippe ist beispielsweise aus
Eine weitere Waschmaschinentrommel mit als Schöpfvorrichtung ausgebildeten Mitnehmerrippen ist aus
Es ist die Aufgabe der vorliegenden Erfindung, eine konstruktiv einfache und verschleißarme Möglichkeit zur effektiven Waschgutbenetzung durch als Schöpfvorrichtung ausgebildete Mitnehmerrippen bereitzustellen.It is the object of the present invention to provide a structurally simple and low-wear possibility for the effective washing of ware by means designed as a scoop driving ridges.
Diese Aufgabe wird durch eine nach Anspruch 1 ausgebildete Waschmaschine in der Weise gelöst, dass im Hohlraum eine vom Mitnehmerboden her in Richtung W der einfließenden Lauge aufsteigende, feste Barriere vorhanden ist, die innerhalb des Hohlraums hinter sich eine offene Kammer bildet, und dass die obere Kante der Barriere in der tiefsten Position des Mitnehmers höher liegt als das Niveau der Lauge und die hinter der oberen Kante liegende Kammer bei weiterer Drehung der Wäschetrommel durch Überspülen der Barriere mit Lauge befüllbar ist.This object is achieved by a trained according to claim 1 washing machine in such a way that in the cavity from the Mitnehmerboden ago in the direction W of the inflowing liquor ascending, solid barrier is present, which forms an open chamber within the cavity behind, and that the upper Edge of the barrier in the lowest position of the driver is higher than the level of the liquor and the chamber lying behind the upper edge can be filled with further rotation of the laundry drum by over-washing the barrier with alkali.
Vorteilhafte Ausgestaltungen sind, auch in beliebiger Kombination miteinander, aus den Unteransprüchen entnehmbar.Advantageous embodiments are, even in any combination with each other, removed from the dependent claims.
Die Waschmaschine ist mit einer in einem Laugenbehälter um eine Achse A horizontal drehbar angetriebenen Wäschetrommel ausgestattet. In die Wäschetrommel ragen hohle Mitnehmer, die das Waschgut bei einer Trommeldrehung mitnehmen; deren Zahl ist nicht eingeschränkt und liegt typischerweise bei drei. In jeden Mitnehmer ist mindestens eine Einlassöffnung eingebracht, durch die Mengenanteile aus einer sich im unteren Scheitel (6-Uhr-Stellung) des Laugenbehälters befindlichen freien Flotte in die zugehörige Mitnehmerhöhle einfließen; die Zahl der Einlassöffnungen ist nicht begrenzt. Nach einer weiteren Drehung der Mitnehmer in eine angehobene Lage ergießt sich die in der Mitnehmerhöhle vorhandene Lauge in das Innere der Wäschetrommel, typischerweise über Gießöffnungen im Firstbereich des Mitnehmers.The washing machine is equipped with a washing drum horizontally rotatably driven in a tub around an axis A. In the laundry drum protrude hollow carriers that take the laundry with a drum rotation; their number is not limited and is typically three. In each driver at least one inlet opening is introduced, flow through the amounts of a located in the lower vertex (6 o'clock position) of the tub free fleet into the associated Mitnehmerhöhle; the number of inlet openings is not limited. After a further rotation of the driver in a raised position, the lye present in the driver cavity pours into the interior of the laundry drum, typically via pouring openings in the ridge region of the driver.
Die Einlassöffnung ist in einem im Mantel der Wäschetrommel angeordneten Mitnehmerboden eingebracht. In der Mitnehmerhöhle ist weiterhin eine vom Mitnehmerboden aufsteigende, feste Barriere vorhanden, die eine offene Kammer bildet. Über die Barriere fließende Lauge wird in der Kammer zurückgehalten. Die Kammer ist so ausgebildet und angeordnet, dass bei Drehung der Wäschetrommel durch die freie Flotte bzw. den Laugenvorrat die Barriere mit aus der zugehörigen Einlassöffnung eintretenden Lauge sogar dann befüllbar ist, wenn das Füllstandsniveau der Lauge tiefer liegt als die obere Kante der Barriere. Dies wird dadurch bewirkt, dass die kinetische Energie der in den Hohlraum des Mitnehmers einfließenden Lauge bzw. deren Staudruck ausreicht, um die Barriere zu überwinden. Bei der Drehung der Wäschetrommel durch die freie Flotte wird also die Lauge durch die Einlassöffnung mit einer relativ zur Wäschetrommel vorhandenen kinetischen Energie eingespült. Die Lauge trifft dann auf die Barriere, überspült sie und gelangt so in die Kammer hinter der Barriere. Die Barriere steigt vom Mitnehmerboden auf, muss aber nicht Teil der Trommelkontur sein, sondern kann z. B. als Einsatz ausgebildet sein.The inlet opening is introduced into a driving floor arranged in the jacket of the laundry drum. In the Mitnehmerhöhle continues from the Mitnehmerboden rising, solid barrier is present, which forms an open chamber. Liquor flowing over the barrier is retained in the chamber. The chamber is designed and arranged so that upon rotation of the laundry drum through the free liquor or the lye supply the barrier is even filled with entering from the associated inlet opening liquor when the level of the liquor level is lower than the upper edge of the barrier. This is effected by the fact that the kinetic energy of the liquor flowing into the cavity of the driver or its dynamic pressure sufficient to overcome the barrier. During the rotation of the laundry drum by the free liquor so the liquor is flushed through the inlet opening with a kinetic energy available to the laundry drum. The lye then hits the barrier, it overflows and gets into the chamber behind the barrier. The barrier rises from the Mitnehmerboden, but does not have to be part of the drum contour, but z. B. be designed as an insert.
Die Barriere kann, da sie nicht strukturiert zu sein braucht und keine beweglichen Teile benötigt werden, einfach und kostengünstig hergestellt und eingefügt werden und verschleißarm betrieben werden. Dadurch, dass die Kammer über das Füllstandsniveau des Laugenvorrats hinaus befüllbar ist und allgemein eine gute Rückhaltewirkung zeigt, kann eine vergleichsweise große Menge an Lauge mitgeführt und über dem Waschgut ausgegossen werden. Durch die somit erhöhte Waschwirkung pro Zeiteinheit (Wascheffizienz) kann eine kürzere Programmzeit erreicht werden, was wiederum eine Verringerung der Heizzeit und damit des Energieverbrauchs erlaubt. Andererseits kann alternativ die Gesamtmenge der Waschflotte verringert werden, was wegen der geringeren benötigten Heizleistung ebenfalls eine Senkung des Energieverbrauchs und zudem des Wasserverbrauchs bewirkt.The barrier, since it does not need to be structured and no moving parts are needed, can be easily and inexpensively manufactured and inserted and operated wear. Due to the fact that the chamber can be filled beyond the fill level of the liquor supply and generally shows a good retention effect, a comparatively large amount of liquor can be entrained and poured out over the laundry. Due to the thus increased washing effect per unit time (washing efficiency), a shorter program time can be achieved, which in turn allows a reduction of the heating time and thus the energy consumption. On the other hand, alternatively, the total amount of the wash liquor can be reduced, which also causes a reduction in energy consumption and also water consumption because of the lower heating power required.
Günstigerweise sind Höhe, Form und Lage der Barriere so gewählt, dass sich eine maximale Befüllung in Abhängigkeit unter anderem von der Drehgeschwindigkeit der Trommel und dem Befüllungsniveau der Lauge ergibt. Diese Parameter sind typischerweise für die verschiedenen Waschphasen (Benetzungsphase, Spülphase etc.) durch ein Steuerprogramm festgelegt, so dass die Barriere konstruktiv auf die eine bestimmte Waschmaschine abstimmbar ist.Conveniently, the height, shape and position of the barrier are chosen so that a maximum filling depending on, inter alia, the rotational speed of the drum and the filling level of the liquor results. These parameters are typically set for the various washing phases (wetting phase, rinsing phase, etc.) by a control program so that the barrier is structurally tunable to the particular washing machine.
Vorteilhafterweise ist die Barriere von der zugehörigen Einlassöffnung weg geneigt, weil so die Lauge gut über die Barriere fließen kann, die zudem günstigerweise als eine parallel zum Trommelmantel laufende Wand vorliegt.Advantageously, the barrier is tilted away from the associated inlet opening because it allows the liquor to flow well over the barrier, which is also conveniently present as a wall running parallel to the drum shell.
Die Barriere kann eine zusätzliche Rippe sein, die an der Trommelkontur befestigt wird, z. B. durch nieten oder schweißen. Die Kammer kann aber auch ein wannenartiger Einsatz im Mitnehmer sein, dessen Wannenboden zumindest teilweise an dem Mitnehmerboden anliegt. Die Barriere entspricht dann einer Wand der Wanne, wobei die andere Wand beispielsweise an einer Mitnehmerflanke anliegt oder parallel dazu beabstandet ist oder sogar durch die Mitnehmerflanke (mit-)gebildet wird. In einer weiteren Ausführungsform kann die Barriere bzw. Wand als nach innen gefalzter Randbereich der Einlassöffnung, z.B. als nach innen umlaufender Umbug der - vorzugsweise schlitzförmigen - Einlassöffnung ausgebildet ist.The barrier may be an additional rib attached to the drum contour, e.g. B. by riveting or welding. The chamber may also be a trough-like insert in the driver, the tub bottom rests at least partially on the driver bottom. The barrier then corresponds to a wall of the tub, wherein the other wall, for example, rests against a driver flank or spaced parallel thereto or even (mit-) is formed by the Mitnehmerflanke. In a further embodiment, the barrier or wall can be used as an inwardly folded edge region The inlet opening, for example, as inwardly encircling Umbug the - preferably slot-shaped - inlet opening is formed.
Zur Vergrößerung der einströmenden Laugenmenge und Laugengeschwindigkeit ist es vorteilhaft, wenn die Einlassöffnung mit einer am äußeren Trommelumfang angeordneten Schöpfvorrichtung versehen ist, z. B. einer Schöpfkelle, die sich zur Drehrichtung hin öffnet.To increase the inflowing amount of liquor and liquor speed, it is advantageous if the inlet opening is provided with a pump disposed on the outer circumference Schöpfvorrichtung, z. B. a ladle, which opens to the direction of rotation.
Falls eine verbesserte Wäscheberegnung in beiden Drehrichtungen gewünscht wird, können die Mitnehmer in einer zum Trommelmantel parallelen Richtung in mehrere Abteilungen unterteilt sein, die abwechselnd auf entgegengesetzte Drehrichtungen ausgerichtet sind und nur in diesen den gewünschten Effekt zeigen. Die Abteilungen können z. B. in Drehrichtung gespiegelt aufgebaut sein.If an improved laundry irrigation in both directions of rotation is desired, the drivers can be divided in a direction parallel to the drum shell in several departments, which are alternately aligned in opposite directions of rotation and only in these show the desired effect. The departments can z. B. be constructed mirrored in the direction of rotation.
In den folgenden Ausführungsbeispielen wird die Waschmaschine schematisch näher dargestellt. Dabei sind funktional gleich wirkende Bauteile zur besseren Übersichtlichkeit mit gleichen Bezugszeichen versehen. Es zeigen
- Fig. 1
- eine Skizze eines Ausschnitts einer Waschmaschine mit horizontal drehbarer Wäschetrommel,
- Fig. 2
- eine weitere Skizze einer herkömmlichen Wäschetrommel in einer ersten Drehposition,
- Fig. 3
- eine weitere Skizze der Wäschetrommel gemäß
Fig. 2 in einer zweiten Drehposition, - Fig. 4
- eine Skizze einer Wäschetrommel der erfindungsgemäßen Waschmaschine in einer zur
Fig. 2 analogen Drehposition, - Fig. 5
- eine Skizze der Wäschetrommel gemäß
Fig. 4 in einer zurFig. 3 analogen Drehposition, - Fig. 6
- eine vergrößerte Detailansicht einer erfindungsgemäßen Wäschetrommel mit einem Mitnehmer in einer ersten Ausführungsform,
- Fig. 7
- eine vergrößerte Detailansicht einer erfindungsgemäßen Wäschetrommel mit einem Mitnehmer in einer zweiten Ausführungsform,
- Fig. 8
- eine vergrößerte Detailansicht einer erfindungsgemäßen Wäschetrommel mit einem Mitnehmer in einer dritten Ausführungsform.
- Fig. 1
- a sketch of a section of a washing machine with horizontally rotatable laundry drum,
- Fig. 2
- another sketch of a conventional laundry drum in a first rotational position,
- Fig. 3
- another sketch of the laundry drum according to
Fig. 2 in a second rotational position, - Fig. 4
- a sketch of a laundry drum of the washing machine according to the invention in a for
Fig. 2 analogue rotational position, - Fig. 5
- a sketch of the laundry drum according to
Fig. 4 in a toFig. 3 analogue rotational position, - Fig. 6
- an enlarged detail view of a laundry drum according to the invention with a driver in a first embodiment,
- Fig. 7
- an enlarged detail view of a laundry drum according to the invention with a driver in a second embodiment,
- Fig. 8
- an enlarged detail view of a laundry drum according to the invention with a driver in a third embodiment.
Der Laugenbehälter 1 einer Waschmaschine in
Weil zum Waschen möglichst wenig Wasser und Waschmittel eingesetzt werden sollte, hat sich die zum Waschen erforderliche Laugenmenge so weit verringert, dass die Wäschetrommel 4 nun nur noch geringfügig in die am Boden des Laugenbehälters 1 befindliche Lauge eintaucht. Hierdurch entsteht jedoch die Schwierigkeit, dass die am Boden der Wäschetrommel 4 lagernde Wäsche 10 in nicht mehr ausreichendem Maße mit der Lauge in Berührung kommt, so dass die Wäsche 10 nur noch sehr langsam und sehr unvollständig benetzt wird. Dadurch gerät das Waschergebnis in Gefahr. Die Benetzung der Wäsche 10 mit Lauge wird durch den Einsatz von Mitnehmern 11 verbessert, die am Trommelmantel 41 angebracht sind und die beim Drehen der Wäschetrommel 4, z.B. in der durch den Pfeil D angedeuteten Drehrichtung, aus dem in der Vertiefung 5 stehenden Laugenvorrat die jeweilige Mitnehmerhöhle 13 über mit Schöpfvorrichtungen 12 ausgestattete Einlassöffnungen 14 füllen können. Während der Aufwärtsbewegung des Mitnehmers 11 wird diese geschöpfte Laugenmenge zunächst zwischengespeichert und dann über Auslassöffnungen im Firstbereich des Mitnehmers 11 erst in den Trommelinnenraum abgegeben, wenn der Mitnehmer 11 eine gewisse Höhe über der in der Trommel 4 liegenden Wäsche 10 erreicht hat. Durch die Pfeile R ist angedeutet, in welcher Weise die derartig hochgehobene Lauge über die Wäsche 10 regnet.Because as little as possible water and detergent should be used for washing, the amount of alkali required for washing has decreased so much that the laundry drum 4 is now only slightly immersed in the liquor at the bottom of the tub 1. However, this creates the difficulty that the stored at the bottom of the laundry drum 4
In der vereinfacht dargestellten Wäschetrommel 4 der
Ein weiterer, links oben eingezeichneter Mitnehmer 11 hat bereits eine so hohe Position erreicht, dass in ihm befindliche Lauge aus den Auslassöffnungen 15 in das Trommelinnere abregnet, wie es durch die Pfeile R angedeutet ist. Der rechts oben eingezeichnete Mitnehmer 11 ist bereits entleert und kann nach Durchlaufen der restlichen Drehung erneut Lauge aus dem unten im Laugenbehälter 1 stehenden Vorrat schöpfen.Another
Beim weiteren Drehen der unteren Mitnehmers 11 (
Im Gegensatz zu der in
Die Barriere 17 der Mitnehmer 11' ist wandförmig ausgebildet und steigt von der jeweiligen Einlassöffnung 14' beginnend in einem Winkel in den Hohlraum 13' an. Im hier dargestellten Ausführungsbeispiel liegt die obere Kante 171 der Barriere 17 in 6-Uhr-Stellung des Mitnehmers 11' höher als das eingestellte Laugenniveau Nv. Beim Betrieb der Waschmaschine wird, wie durch den Pfeil W angedeutet, (gepunktet dargestellte) Lauge durch die Einlassöffnung 14' in den Hohlraum 13' gespült. Durch die kinetische Energie der Lauge, relativ zur Wäschetrommel 4, ist es möglich, dass die Lauge den Höhenunterschied zwischen Laugenniveau Nv und der Kante der Barriere 17 überwindet. In anderen Worten: die Lauge überspült aufgrund ihrer Relativgeschwindigkeit die Barriere 17 und wird in der Kammer 18 zurückgehalten.The
Beim Betrieb der Waschmaschine, z. B., in einer Benetzungs-, Wasch- oder Spülphase, wird zunächst der Laugenbehälter mit Lauge gefüllt, typischerweise niveaugestützt auf ein Füllstandsniveau Nv. Dann wird die Wäschetrommel 4 gedreht. Beim Durchgang der Mitnehmer durch den Laugenvorrat bzw. die freie Flotte strömt Lauge durch die Eintrittsöffnung(en) 14' in den Hohlraum 13'. Falls das Füllstandsniveau Nv niedriger liegt als der Boden 42 des Mitnehmers 11' in 6-Uhr-Stellung, entsprechend seinem unteren Scheitelpunkt, kann bei erfindungsgemäßer Ausbildung der Wäschetrommel 4 die Lauge die Barriere 17 immer noch überspülen und in der Kammer 18 aufgefangen bzw. gespeichert werden.When operating the washing machine, z. B., in a wetting, washing or rinsing phase, the tub is first filled with liquor, typically level-based to a level Nv. Then the laundry drum 4 is rotated. During the passage of the driver through the lye supply or the free liquor liquor flows through the inlet opening (s) 14 'in the cavity 13'. If the level level Nv is lower than the bottom 42 of the driver 11 'in the 6 o'clock position, correspondingly its lower vertex, in the inventive design of the laundry drum 4, the liquor can still wash over the
Bei weiterer Drehung der Wäschetrommel 4 wird der Mitnehmer 11' in eine angehobene Lage gebracht, bei der die Lauge aus der Kammer 18 zu den Auslassöffnungen 15' fließt, und sich durch diese in die Wäschetrommel 4 ergießt.Upon further rotation of the laundry drum 4, the driver 11 'is brought into a raised position, in which the liquor flows from the
Die Auslassöffnungen 15' befinden sich vorzugsweise im oberen Bereich jedes Mitnehmers 11' dem Firstbereich. Dadurch wird gewährleistet, dass ein hohes mitgenommenes Laugenvolumen erst aus dem Mitnehmer abregnet, wenn er sich weit oberhalb der Wäsche befindet.The outlet openings 15 'are preferably in the upper region of each driver 11' the ridge region. This ensures that a high entrained liquor volume does not rain out of the driver until it is far above the laundry.
Die Einlassöffnung 14' kann eine einzelne Öffnung sein, z. B. schlitzartig mit oder ohne Kiemen, oder es können mehrere Einlassöffnungen je Mitnehmerboden 42 vorhanden sein, z. B. mehrere Schlitze oder Löcher.The inlet opening 14 'may be a single opening, e.g. B. slotted with or without gills, or there may be more inlet openings per
Der Mitnehmer 11' kann in parallel zum Mitnehmerboden 42, der auch parallel zu Längsachse des Mitnehmers 11' liegt, angeordnete Abteile unterteilt sein. Dies ist besonders vorteilhaft, wenn die Wäschetrommel 4 den Befeuchtungsvorgang in beiden Drehrichtungen durchführen soll. Dann können die Abteile beispielsweise abwechselnd in entgegen gesetzten Drehrichtungen wirksam sein, z. B. durch abwechselnd zu einer Drehrichtung umgekehrten Anordnung der Konstruktionsmerkmale.The driver 11 'may be divided into compartments arranged parallel to the
Selbstverständlich ist die Barriere auch dann vorteilhaft bei der Rückhaltung von Lauge im Mitnehmer, wenn das Laugenniveau Nv bei Durchfahren des Laugenvorrats über der Kante 171 der Barriere liegt. Zwar ist dann das im Vergleich zum ungeteilten Hohlraum 13' mitgenommene Laugenvolumen nicht mehr so groß; es ist jedoch im gleichen Maße höher als bei einem geteilten Hohlraum ohne Barriere.Of course, the barrier is also advantageous in the retention of liquor in the driver when the liquor level Nv when passing through the liquor supply over the
Die Barriere 17 kann, wie in
Claims (8)
- Washing machine with a laundry drum (4), which is arranged in a solution container (1) to be horizontally rotatable, and with hollow entrainers (11, 11') which are arranged at the inner side of a drum casing (41) and which in the course of the drum casing (41) each have an entrainer base (42) in which at least one inlet opening (14, 14') is formed, wherein quantity portions from a solution disposed in the lower crown of the solution container (1) flow through the corresponding inlet opening (14, 14') into the cavity (13, 13') of the entrainer (11, 11') and after a further rotation of the laundry drum (4) into a raised position of the entrainer (11, 11') pour out of the cavity (13, 13') via outlet openings (15) in the ridge region, which is remote from the entrainer base (42), of the entrainer (11, 11') into the interior of the laundry drum (4), characterised in that present in the cavity (13') is a fixed barrier (17), which rises from the entrainer base (42) in the direction (W) of the inflowing solution and which forms an open chamber (18) within the cavity (13') behind this and that the upper edge (171) of the barrier (17) in the lowermost position of the entrainer (11') is higher than the level (Nv) of the solution and the chamber (18) lying behind the upper edge (171) is fillable with solution by overflowing of the barrier (17) when further rotation of the laundry drum (4) takes place.
- Washing machine according to claim 1, characterised in that the barrier (17) is a wall which runs parallel to the drum casing (41) and which is inclined away from the associated inlet opening (14') arranged in front of the barrier (17) in rotational direction (D).
- Washing machine according to claim 2, characterised in that the barrier (17) is an additional rib (19).
- Washing machine according to claim 2, characterised in that the barrier (17) and the chamber (18) are formed by a trough-shaped insert (20) in the entrainer (11'), the trough base (201) of the insert lying at least partly against the entrainer base (42).
- Washing machine according to claim 2, characterised in that the barrier (17) is constructed as an inwardly folded edge region (21) of the inlet opening (14').
- Washing machine according to claim 1, characterised in that the inlet opening (14') is provided with a scoop (12') which is arranged at the drum casing (41) and opens in rotational direction (D).
- Washing machine according to claim 1, characterised in that the entrainer (11') is subdivided in a direction parallel to the drum casing (41) into several compartments of which the inlet openings (14') are oriented alternately in opposite rotational directions (D).
- Method of operating the washing machine according to any one of the aforesaid claims, characterised in that(a) a solution container (1) is filled with solution up to a filling state level (Nv) lying below the edge of the barrier (17) of an entrainer (11) disposed at the lower crown point;(b) and that then the laundry drum (4) is rotated;(c) and that on passage of the entrainer (11') through the solution reserve solution flows through the inlet opening (14') into the respective entrainer (11'), washes over the barrier (17) and passes into the chamber (18), where it is stored;(d) and that on further rotation of the laundry drum (4) the entrainer (11') is brought into a raised position in which the solution flows out of the chamber (18) to the outlet openings (15) in the entrainer (11') and pours through these into the interior of the laundry drum (4).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006031355A DE102006031355A1 (en) | 2006-07-06 | 2006-07-06 | Washing machine with hollow drivers |
PCT/EP2007/056172 WO2008003594A1 (en) | 2006-07-06 | 2007-06-21 | Washing machine with hollow drivers |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2044253A1 EP2044253A1 (en) | 2009-04-08 |
EP2044253B1 true EP2044253B1 (en) | 2009-11-18 |
Family
ID=38573384
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07765529A Active EP2044253B1 (en) | 2006-07-06 | 2007-06-21 | Washing machine with hollow drivers |
Country Status (7)
Country | Link |
---|---|
US (1) | US20090276966A1 (en) |
EP (1) | EP2044253B1 (en) |
CN (2) | CN101495694B (en) |
AT (1) | ATE449209T1 (en) |
DE (2) | DE102006031355A1 (en) |
RU (1) | RU2413802C2 (en) |
WO (1) | WO2008003594A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011006697A1 (en) | 2011-04-04 | 2012-10-04 | BSH Bosch und Siemens Hausgeräte GmbH | Laundry drum for washing machine, has drivers that are extended radially inward and are distributed in circumferential direction of drum to occupy major portion of axial dimension of drum |
Families Citing this family (24)
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US20090276966A1 (en) * | 2006-07-06 | 2009-11-12 | Bsh Bosch Und Siemens Hausgerate Gmbh | Washing machine with hollow agitators |
KR101049140B1 (en) * | 2009-01-23 | 2011-07-15 | 엘지전자 주식회사 | Washing machine |
CN101812793A (en) * | 2010-04-29 | 2010-08-25 | 南京乐金熊猫电器有限公司 | Washing machine drum |
GB201015277D0 (en) | 2010-09-14 | 2010-10-27 | Xeros Ltd | Novel cleaning method |
GB201100627D0 (en) | 2011-01-14 | 2011-03-02 | Xeros Ltd | Improved cleaning method |
DE102011083015B4 (en) * | 2011-09-20 | 2019-08-14 | BSH Hausgeräte GmbH | Laundry drum with drum profile for optimized spin effect |
DE102012200075B3 (en) * | 2012-01-04 | 2013-02-21 | BSH Bosch und Siemens Hausgeräte GmbH | Clothes dryer such as household clothes dryer has temperature-activated release unit which releases extinguishing agent into space outside of drum, so that extinguishing agent is released automatically at temperature caused by fire |
GB201212098D0 (en) | 2012-07-06 | 2012-08-22 | Xeros Ltd | New cleaning material |
GB201305122D0 (en) * | 2013-03-20 | 2013-05-01 | Xeros Ltd | New cleaning apparatus and method |
GB201305121D0 (en) * | 2013-03-20 | 2013-05-01 | Xeros Ltd | Improved drying apparatus and method |
GB201305120D0 (en) | 2013-03-20 | 2013-05-01 | Xeros Ltd | Improved cleaning apparatus and method |
KR102042216B1 (en) * | 2013-04-03 | 2019-11-07 | 엘지전자 주식회사 | A washing machine |
KR102053142B1 (en) * | 2013-04-03 | 2019-12-06 | 엘지전자 주식회사 | A washing machine |
GB201319782D0 (en) | 2013-11-08 | 2013-12-25 | Xeros Ltd | Cleaning method and apparatus |
GB201320784D0 (en) | 2013-11-25 | 2014-01-08 | Xeros Ltd | Improved cleaning Apparatus and method |
KR101568914B1 (en) | 2013-12-24 | 2015-11-12 | 동부대우전자 주식회사 | Washing machine |
DE102014115217A1 (en) * | 2014-10-20 | 2016-04-21 | Miele & Cie. Kg | Washing machine and method for operating a washing machine |
WO2017005311A1 (en) * | 2015-07-07 | 2017-01-12 | Arcelik Anonim Sirketi | Elastic drum baffle for use in a laundry washing machine |
KR102488373B1 (en) * | 2015-09-04 | 2023-01-12 | 엘지전자 주식회사 | Laundry treating apparatus |
KR102449509B1 (en) | 2016-01-05 | 2022-09-29 | 엘지전자 주식회사 | Lifter for laundary treating apparatus |
CN110894664B (en) * | 2018-09-12 | 2023-08-01 | 青岛海尔洗涤电器有限公司 | Washing machine lifting device and washing machine |
CN112111938B (en) * | 2019-06-19 | 2023-04-07 | 青岛海尔洗衣机有限公司 | Lifting rib of washing machine and washing machine |
CN112111928B (en) * | 2019-06-19 | 2022-07-12 | 青岛海尔洗衣机有限公司 | Lifting rib of washing machine and washing machine |
CN112853681B (en) * | 2021-01-15 | 2023-07-07 | 长虹美菱股份有限公司 | Drying control method for drum of drum washing machine |
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DE1108170B (en) * | 1958-12-31 | 1961-06-08 | Bbc Brown Boveri & Cie | Device for balancing out the unbalance in washing machines and spin dryers with a horizontal shaft |
DE3112118A1 (en) * | 1981-03-27 | 1982-10-07 | Bayer Ag, 5090 Leverkusen | POLYETHERPOLYAMINES CONTAINING POLYMERISATE, METHOD FOR PRODUCING THESE POLYAMINES AND THE USE THEREOF AS CONSTRUCTION COMPONENT FOR PRODUCING POLYURETHANES |
IT1192078B (en) * | 1986-04-17 | 1988-03-31 | Zanussi Elettrodomestici | WASHING MACHINE |
DE3712118A1 (en) * | 1986-05-06 | 1987-11-12 | Bosch Siemens Hausgeraete | DRUM WASHING MACHINE |
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DE3741177A1 (en) * | 1987-12-04 | 1989-06-15 | Bosch Siemens Hausgeraete | METHOD FOR OPERATING A DRUM WASHING MACHINE AND DRUM WASHING MACHINE FOR CARRYING OUT THE METHOD |
DE3803195C2 (en) * | 1988-02-03 | 1994-08-18 | Bosch Siemens Hausgeraete | Driving scoop for a washing drum |
DE3825377A1 (en) * | 1988-07-26 | 1990-02-01 | Bosch Siemens Hausgeraete | WASHING DRUM |
IT229047Y1 (en) * | 1992-07-21 | 1998-06-24 | Zanussi Elettrodomestici | WASHING MACHINE WITH PERFECTED BASKET |
KR100465724B1 (en) * | 2002-12-26 | 2005-01-13 | 엘지전자 주식회사 | Lift of drum washer |
KR20050045256A (en) * | 2003-11-10 | 2005-05-17 | 삼성전자주식회사 | Drum washing machine |
US20090276966A1 (en) * | 2006-07-06 | 2009-11-12 | Bsh Bosch Und Siemens Hausgerate Gmbh | Washing machine with hollow agitators |
-
2006
- 2006-06-21 US US12/308,736 patent/US20090276966A1/en not_active Abandoned
- 2006-07-06 DE DE102006031355A patent/DE102006031355A1/en not_active Withdrawn
-
2007
- 2007-06-21 RU RU2009101950/12A patent/RU2413802C2/en not_active IP Right Cessation
- 2007-06-21 CN CN2007800254716A patent/CN101495694B/en active Active
- 2007-06-21 AT AT07765529T patent/ATE449209T1/en active
- 2007-06-21 WO PCT/EP2007/056172 patent/WO2008003594A1/en active Application Filing
- 2007-06-21 EP EP07765529A patent/EP2044253B1/en active Active
- 2007-06-21 DE DE502007002069T patent/DE502007002069D1/en active Active
- 2007-07-06 CN CNU2007201526490U patent/CN201065483Y/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011006697A1 (en) | 2011-04-04 | 2012-10-04 | BSH Bosch und Siemens Hausgeräte GmbH | Laundry drum for washing machine, has drivers that are extended radially inward and are distributed in circumferential direction of drum to occupy major portion of axial dimension of drum |
DE102011006697B4 (en) | 2011-04-04 | 2022-10-13 | BSH Hausgeräte GmbH | laundry drum of a washing machine |
Also Published As
Publication number | Publication date |
---|---|
CN101495694A (en) | 2009-07-29 |
CN201065483Y (en) | 2008-05-28 |
RU2009101950A (en) | 2010-08-20 |
RU2413802C2 (en) | 2011-03-10 |
EP2044253A1 (en) | 2009-04-08 |
DE502007002069D1 (en) | 2009-12-31 |
DE102006031355A1 (en) | 2008-01-10 |
US20090276966A1 (en) | 2009-11-12 |
CN101495694B (en) | 2011-07-20 |
WO2008003594A1 (en) | 2008-01-10 |
ATE449209T1 (en) | 2009-12-15 |
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