EP1760186A2 - Methode et appareil de laver et essorer de linge - Google Patents

Methode et appareil de laver et essorer de linge Download PDF

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Publication number
EP1760186A2
EP1760186A2 EP06016285A EP06016285A EP1760186A2 EP 1760186 A2 EP1760186 A2 EP 1760186A2 EP 06016285 A EP06016285 A EP 06016285A EP 06016285 A EP06016285 A EP 06016285A EP 1760186 A2 EP1760186 A2 EP 1760186A2
Authority
EP
European Patent Office
Prior art keywords
weight
drum
laundry
determined
washer
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.)
Withdrawn
Application number
EP06016285A
Other languages
German (de)
English (en)
Other versions
EP1760186A3 (fr
Inventor
Wilhelm Bringewatt
Engelbert Heinz
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.)
Herbert Kannegiesser GmbH and Co
Original Assignee
Herbert Kannegiesser GmbH and Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Herbert Kannegiesser GmbH and Co filed Critical Herbert Kannegiesser GmbH and Co
Publication of EP1760186A2 publication Critical patent/EP1760186A2/fr
Publication of EP1760186A3 publication Critical patent/EP1760186A3/fr
Withdrawn legal-status Critical Current

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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
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14—Arrangements for detecting or measuring specific parameters
    • D06F34/18—Condition of the laundry, e.g. nature or weight
    • 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/02—Characteristics of laundry or load
    • D06F2103/04—Quantity, e.g. weight or variation of weight
    • 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/02—Characteristics of laundry or load
    • D06F2103/08—Humidity
    • 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/18—Washing liquid level
    • 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/26—Imbalance; Noise level
    • 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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/02—Water supply
    • 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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/46—Drum speed; Actuation of motors, e.g. starting or interrupting
    • D06F2105/48—Drum speed
    • 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
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/48—Preventing or reducing imbalance or noise
    • 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
    • D06F95/00—Laundry systems or arrangements of apparatus or machines; Mobile laundries 

Definitions

  • the invention relates to a method for washing and / or spinning laundry according to the preamble of claim 1. Furthermore, the invention relates to a device for washing and / or spinning laundry according to the preamble of claim 11.
  • Devices of the type mentioned here which are usually used in commercial laundries, serve to either wash and spin laundry (washer-extractors) or to spin them (laundry centrifuges).
  • laundry is meant not only clothing and household linen, but also other items to be washed, such as floor mats.
  • a division of the laundry leaving the washer-extractor or the laundry centrifuge usually takes place in at least two, preferably equally large, items (post-division).
  • the above requirements meet known washer extractors and laundry centrifuges - if at all - only imperfectly.
  • the invention is based on the object of providing a method and a device for washing and / or spinning laundry, which operate in a simple manner economically while maintaining the machine-specific requirements.
  • a method for achieving this object comprises the measures of claim 1. Accordingly, it is provided that the weight of at least the content of the drum is determined. This is done according to the invention in a simple manner by weighing at least the drum including its contents. The weighing of the still dry laundry in the drum, the weight of the laundry with the liquid in the drum or the weight of the laundry with the liquid contained in it, the so-called bound liquor, can be determined by such a weighing alone. In this way, conclusions about the loading condition of the drum at the time of weighing or weight determination are possible. The loading condition is easily detectable due to the at least one weight measurement and allows different conclusions about an optimal loading of the drum and the washing and / or spinning of the laundry and possibly also the loading and unloading of the drum. The result of the weighing can be used primarily for several, possibly different purposes.
  • the weight of the laundry and optionally the liquid in the drum is measured several times.
  • the weight is determined continuously.
  • Such a continuous determination of the weight is understood as a continuous, continuous weight determination or, alternatively, a weighting determination in successive, preferably regular, time intervals. It is thus ascertainable at the time of the respective weight measurement how large the actual weight of the laundry and possibly the liquid in the drum is. Thus, weight changes over time are easily detected.
  • the weight of the contents of the drum can be constantly determined.
  • This data is particularly easy to determine because it only requires weight measurements of the drum with its contents.
  • the weight of the substantially entire washer-extractor or laundry centrifuge is determined, preferably several times, in particular continuously. It is thus not only the weight of the drum with the entire content determined, but also the weight of at least the essential parts of the drum-supporting base frame. Since the weight of the drum and the base frame does not change because it is constant, due to the known weight of the drum and the base frame, namely at least the parts thereof included in the weight measurement, the weight or the mass can be subtracted from the measured total weight reliably determine the contents of the drum. Thus, in all operating states of the washer-extractor or the laundry centrifuge, the mass or the weight of the laundry and optionally the liquid in the drum can always be determined.
  • the weight of only the laundry, in particular the still dry laundry, during loading of the drum and / or determined at the completion of the loading process of the drum can thus always determine the weight of currently located in the drum laundry.
  • the loading process can be ended in time if the weight determination has revealed that the drum contains laundry with an intended weight. Since the weight measurement expediently takes place continuously (interrupted or at regular time intervals), the loading process can be stopped in a simple manner as soon as the weight determination has revealed that laundry with a prescribed or predetermined weight is contained in the drum.
  • determining the weight of the contents of the drum can be determined in particular in a washer extractor also how much liquid is in addition to the laundry in the drum. Taking into account the given dimensions of the drum so conclusions about the liquid level (height of the liquid level) in the drum are possible. Above all, it is possible in this way to monitor the filling of the drum with the required amount of liquid. The addition of liquid to the laundry is then stopped when the determined weight of the total contents of the drum indicates a certain level of liquid allows, which is preferably matched to the previously determined concrete weight of the laundry in the drum or adapted thereto.
  • the residual moisture of the laundry is determined during the spinning of the laundry preferably by continuous (continuous or at regular intervals) taking place weight determinations. This is based on the knowledge that when spinning liquid is removed from the laundry and discharged. As a result, the weight of the contents of the drum, ie the laundry with the liquor bound therein, decreases with increasing spin duration. Since the weight of the drum with dry laundry has been determined during loading, it can be determined by comparing the result of the weight measurements of the drum loaded with dry laundry and still bound liquor contained spin laundry, how high the proportion of residual moisture in the laundry. It is expediently determined when a certain residual moisture of the laundry is reached, so that then the spin process can be terminated selectively, depending on findings that have been obtained from various weight measurements.
  • temporal or periodic weight changes which are caused by dynamic forces on the rotationally driven drum, are determined by weight measurements taking place over a corresponding period of time.
  • the dynamic weight changes are mainly determined by continuous uninterrupted and thus continuous weight measurements or by weight measurements that take place over a certain period of time at regular time intervals, ie interrupted by preferably equally long breaks.
  • These dynamic or periodic weight changes provide information about an imbalance of the rotating driven drum. Since the drum is balanced, ie has no imbalance in the unloaded state, any changes in weight that have been detected indicate an imbalance when loading the drum with the laundry. Such unbalance usually occurs only when the laundry during the rotary drive of the drum is not - as normally usual - distributed substantially uniformly on the inner circumference of the drum.
  • the speed of the drum is in particular for Do not increase the spin of the laundry. It then takes a spin of the laundry below the maximum speed. The spin process is then maintained over a longer period of time until the also determined by the novel process maximum residual moisture content of the laundry is reached.
  • the weight determination indicates that the weight of the remaining contents in the drum is about half of the weight of the drum contents after completion of the brewing Spinning process corresponds. If there are several items of equal weight, the weights are quantized accordingly. It is also conceivable to form items of different sizes. The individual items are formed by interrupting the unloading process for a certain time after unloading an amount of laundry constituting a batch of a certain weight with the remaining liquor bound therein from the drum.
  • the drum supporting the base frame assign at least one weight sensor.
  • the at least one weight sensor is used for indirectly measuring the weight of the contents of the drum by determining the total weight of the drum with the contents, in particular laundry and / or liquid, as well as at least part of the weight of the base frame. Since the weight of the whole or part of the base frame taken into account in the measurement and also of the drum is known and does not change appreciably, the result of the weight measurement allows conclusions to be drawn as to the weight of the contents of the drum, ie the weight of the laundry contained therein and, if appropriate, liquid. to.
  • a weight picker is normally sufficient to reliably detect the weight of the laundry and / or liquid contained in the drum.
  • a single weight sensor is also sufficient for successive weight measurements in order to determine periodic weight changes and / or dynamic forces, in particular an imbalance.
  • the at least one weight sensor in the vicinity of a foot, with which the base frame is supported on the ground, arranged and / or associated with this foot.
  • the at least one weight sensor is preferably arranged in the base frame, preferably above the foot, on which the weight sensor carrying the base frame and the drum is supported. This protects the weight sensor from the base frame.
  • the base frame with the drum are supported on the at least one weight sensor, which in turn is supported on the associated foot.
  • the at least one weight sensor thus determines the weight of the base frame with the drum including the contents of the drum, ie the force with which the device is currently supported, ie at the time of the weight measurement, on its foot assigned to the weight sensor.
  • the device is thus virtually weighed, if necessary several times or constantly.
  • each foot of the base frame is associated with a weight picker. These are preferably the same weight sensor.
  • weight measurement Due to the several weight sensors a particularly precise weight measurement is possible. In addition, the weight measurement can still perform when a Weight sensor fails. Above all, however, more reliable and accurate dynamic forces or periodically changing weights can be detected to determine, for example, the imbalance of the rotationally driven loaded drum. It is thus possible to reliably determine the weight of the laundry and possibly also of the liquid or residual moisture during the rotating drive of the drum, without the rotating drive of the drum influencing or distorting the weight determination.
  • weight sensors As a weight sensor, all known types, such as pressure cells, piezo elements, strain gauges, spring carriage or the like are. Preferably, the weight sensors are designed as load cells. For example, shearbar load cells that use 6-wire technology with measuring amplifiers and a weighing range of up to 5 t are used.
  • the figures show a device which is designed as a washer-extractor 10 for use in particular commercial laundries.
  • the washer-extractor 10 has a drum 12 which can be driven in rotation about a pivotable rotation axis 11 and which is permeable to liquid by at least partial perforations in its lateral surface.
  • the drum 12 has at its free end face a single substantially full-surface opening 13.
  • the washer-extractor 10 further has a water-permeable drum 12 surrounding, waterproof drum housing 14.
  • the drum housing 14 is fixed relative to the drum 12 is fixed, so in contrast to the drum 12 is not rotationally driven.
  • the drum housing 14 has at a free end face on a single almost full-surface opening 15.
  • the opening 15 is that end face associated with the drum housing 14, to which also the opening 13 of the drum 12 points.
  • the openings 13 and 15 are thereby adjacent to each other by corresponding with each other.
  • the opening 15 of the drum housing 14 by a pivotable door 16 is closed.
  • the drum housing 14 with the drum 12 rotatably mounted therein is pivotable about a pivot axis 17 extending transversely to the axis of rotation 11 of the drum 12.
  • the pivot axis 17 extends horizontally, so that for loading and unloading the drum 12 can be pivoted with the drum housing 14 so that the openings 13 and 15 at least slightly inclined upwards (loading position) or obliquely downwards are directed (discharge position).
  • the drum 12 may be pivoted to the drum housing 14 in a washing position in which the axis of rotation 11 of the drum 12 is horizontal, inclined or even perpendicular.
  • the drum housing 14 is mounted with the pivot axis 17 on a base frame 18 of the washer-extractor 10.
  • a base frame 18 of the washer-extractor 10 On an underside 21 of the base frame 18, four preferably identically formed feet 19 are arranged in the washer-extractor 10 shown. With the feet 19, the washer-extractor 10 is on the floor of a laundry.
  • the washer-extractor 10 shown here is provided with at least one weight sensor 20. As a result, the washer-extractor 10 is weighed. Due to this weighing, the weight of the current contents of the drum 12 can be determined. By several successive or continuous, continuous weight measurements at regular intervals are temporal changes in the weight of the dry or still wet laundry, as they occur, for example, during unloading detectable. But also dynamic forces that occur during the rotating drive of the drum 12, in particular the loaded drum 12, are ascertainable.
  • the at least one weight receiver 20 is preferably associated with the base frame 18. Of the Weight sensor 20 is preferably arranged in the region of the underside 21 of the base frame 18, in this case between the base frame 18 and the respective foot 19.
  • weight 20 are provided. These are the same weight pickups 20.
  • the weight pickups 20 are installed in a lower region of the base frame 20 in such a way that in each case a weight pickup 20 is supported on one of the four feet 10 (FIGS. 2 and 3). It is apparent from the figures that the weight 20 are arranged within the contour lines of the base frame 18, in the vicinity of the underside 21 of the base frame 18. As a result, the weight sensor 20 are particularly protected during transport of the washer-extractor 10 in the interior of the In addition, it is thus possible to assign the weight sensors 20 to the feet 19 by supporting each of the four weight sensors 20 on one of the four feet 19 (FIG. 3). The firmly in the lower part of the base frame 18 connected weight 20 are so from almost the entire weight of the washer-extractor 10, namely the base frame 18, the drum housing 14 and the drum 12 with its contents acted upon.
  • the panel and the at least one control cabinet are separated from the base frame 18. As a result, interference that could affect the result of the measurement of the weight 20, avoided, as well as flexible media feeds.
  • each weight picker 20 is configured as a shearbar load cell.
  • the shear rod load cell has a corresponding measuring range.
  • a shearbar load cell that can determine weights of up to 5 t is sufficient.
  • Each of the shearbar load cells is preferably designed according to the 6-conductor technique and provided with a measuring amplifier. However, it is also conceivable to provide a measuring amplifier for all four weight pickups 20, namely shearbar load cells.
  • the measuring amplifier (s) is followed by a conventional measuring, evaluation and display electronics.
  • a computer is provided which processes the measurement signals of the weight 20, converts and optionally also stores. The latter is particularly useful if, according to a preferred embodiment of the invention, the weight sensors 20 provide successive measurement signals, in gap-free intervals or with a time interval, in the latter case expediently, the pauses between successive measurements are the same.
  • the shearbar load cells are fixedly connected to the base frame 18 at one end.
  • about one half of each shearbar load cell by a plurality of screws 22 with a crossbar 23 which is fixedly connected to the base frame 18, bolted.
  • the thus releasable connection of the shearbar load cell to the base frame 18 is such that the elongated shear rod is directed horizontally in the base frame 18, wherein a second half of the elongate shear rod load cell with respect to the horizontal cross member 23 of the base frame 18 protrudes freely cantilevered (Fig. 3).
  • the underside of the free relative to the traverse 23 of the base frame 18 protruding part of the shearbar load cell is located with an outer end portion on the respective foot 19.
  • each foot 19 has a threaded rod 24 or a screw.
  • the threaded rod 24 is screwed into the foot 19 and brought with an upper free end 25 in contact with the cantilevered end of the shearbar load cell (weight 20).
  • the end 25 of the threaded rod 24 may be secured in a corresponding recess of the shearbar load cell, for example by tightening.
  • the threaded rod 24 is for the purpose of horizontal alignment of the washer-extractor 10 more or less screwed into the base 19, so that the free end 25 of the threaded rod 24 has a corresponding distance from the top of the foot 19.
  • the washer-extractor 10 is associated with a discharge belt 26 on the discharge side.
  • a discharge belt 26 On the discharge side.
  • Opposite sides of the upper strand 27 of the unloading belt 26 are preferably associated with fixed guide walls 28, whereby the unloading belt 26 is formed like a channel for lateral guidance of the further transported on the unloading belt 26 laundry.
  • the unloading belt 26 shown here rises slightly in the conveying direction 29.
  • the unloading belt 26 can also run horizontally or slightly inclined.
  • the end 30 of the unloading belt 26 is associated with a dryer 31. In this way, the laundry from the washer-extractor 10 is transported via the unloading belt 26 into the dryer 31 for loading the dryer 31 with the laundry coming from the washer-extractor 10.
  • the weight of the contents of the drum 12 can be determined by the weight sensor 20 even when the drive of the drum 12 is rotating, if added by the drive of the loaded drum 12 possibly resulting dynamic forces. Because the dynamic forces are periodic in nature and the weight measurements are continuous over time, the dynamic forces alternately increase and decrease the weight of the washer-extractor 10 determined by the weight pickups 20, including the contents of the drum 12 at the time of weight determination. An average of the periodically fluctuating weight readings results in the weight of the contents of the drum 12 without regard to dynamic force components. The magnitude of the deviations of the weight forces detected by the weight pickups 20 from the mean value makes it possible to draw conclusions about the dynamic forces, in particular unbalances in the rotating drive of the loaded drum 12.
  • the method according to the invention thus makes it possible to determine the weight forces of the contents of the drum 12 both when the drum 12 is stationary and rotating.
  • the dynamic forces caused by any imbalances in the rotating drive of the loaded rotating drum 12 can be determined by means of the weight sensor 20 via the evaluation electronics associated therewith.
  • the weight of the drum 12 is determined during loading. In this way, it can be constantly ascertained how high the weight of the dry laundry currently in the drum 12 is. Specifically, after completion of the loading of the total weight of the post, the dry laundry in the drum 12 is detected. Measurement of weight of dry laundry at Loading the drum 12 can also be used to complete the loading process when the drum 12 is loaded with the designated amount of dry laundry. It is in the evaluation electronics, the target weight or maximum weight of the dry laundry, which is to load the washer-extractor 10 for each work cycle, constantly monitored. As soon as it is determined during the continuous weight measurement that the drum 12 with the dry laundry contained therein has reached the setpoint or maximum weight, the loading process is automatically ended.
  • liquid in particular washing water and washing aids
  • a weight measurement is continuously carried out, as a result of which the weight of the liquid filled into the drum 12 (water and possibly auxiliary washing agent) is constantly determined.
  • the target weight of the liquid is entered into the evaluation electronics, in turn, which is required for the amount of laundry in the drum 12.
  • the supply of liquid into the drum 12 is stopped. Due to the weight measurement it is ensured that the liquid in the drum 12 has a sufficient level for washing the amount of laundry present therein. In this way, only inaccurately working level measurements within the drum 12 can be omitted.
  • the weight of the resting on the weight pickups 20 parts of the washer-extractor 10 and thus determine the weight of the laundry and liquid contained in the drum 12 each by weighing in washing following the washing of the laundry.
  • the determined weight will decrease with increasing spin duration, because by spinning more and more liquid, namely bound liquor, is removed.
  • a target weight is entered, which corresponds to the weight of the initially entered into the drum 12 dry laundry plus a residual moisture or bound residual liquor that may or may not be included in the laundry at the end of the spin process. Once the predetermined target weight is reached, in which the laundry only has the intended residual moisture, is stopped by the evaluation electronics associated with or corresponding thereto control the spinning process. The laundry can then be unloaded from the washer-extractor 10.
  • the dryer 31 following the washer-extractor only takes up part of the laundry load in the washer-extractor 10.
  • the following is about it assumed that the dryer 31 receives only half of the laundry costs of the washer-extractor 10.
  • the time taken for the dryer 31 to dry the laundry namely to at least largely remove the residual moisture from the laundry, is less than the cycle time of the washer-extractor 10, ie the time it takes to wash and spin the laundry ,
  • the cycle time of the dryer 31 corresponds to only half the cycle time of the washer-extractor 10.
  • the item of laundry in the washer-extractor 10 is divided during unloading thereof.
  • the holding capacity of the dryer 31 is half that of the washer-extractor 10
  • the item leaving the washer-extractor 10 is divided into two equally-sized items, namely item halves.
  • the dryer 31 can accommodate only half the amount of laundry as the washer-extractor 10, so there is a uniform division of duties instead.
  • This post-division is supported by the constant determination of the weight of the resting on the weight pickups 20 essential parts of the washer-extractor 10 including a certain residual moisture having laundry in the drum 12. Due to the known weight of resting on the weight pickups 20 components of the washer-extractor 10 is the weight the entire in the drum 12 located post of a residual moisture having laundry known.
  • the washer extractor 10 is gradually discharged, the discharging a residual moisture having laundry reaches the unloading belt 26.
  • the continuous weight measurement can be determined when half the amount of still residual moisture laundry has left the drum 12 of the washer-extractor 10. It is then on the unloading belt 26 a sub-item, which corresponds to about half the weight of the item of laundry in the washer-extractor 10.
  • the unloading process of the washer-extractor 10 is now interrupted for a short time. During this time, the first sub-item is transported by the unloading belt 26 into the dryer 31 and thus the dryer 31 loaded or the sub-item from the unloading belt 26 only slightly further transported towards the dryer 31.
  • the drying process of the first part in the dryer 31 begin. It is then the remaining still a residual moisture having laundry from the drum 12 of the washer extractor 10 discharged. This remaining laundry corresponds to the second sub-item with about the same weight of the first sub-item. This sub-item remains on the unloading belt 26 until the first sub-item has dried. Thereafter, the second sub-item is transported by the unloading belt 26 to or into the dryer 31 for loading the dryer 31 with the second sub-item.
  • the dynamic forces determined by the method according to the invention which originate in particular from the rotationally driven loaded drum 12, can generally only be caused by an imbalance which arises due to an uneven distribution of the laundry in the drum 12.
  • the signals generated by the weight sensors 20 with periodically varying forces allow conclusions to be drawn about an imbalance of the rotationally driven, loaded drum 12.
  • the measurement of the dynamic forces generated by the loaded drum 12 takes place from the beginning of the rotary drive of the drum 12 and preferably also during the entire rotating drive of the same. This measurement can be terminated when the drum 12 has reached a constant final speed, it is also conceivable to carry out the measurement during the entire rotating drive of the drum 12 continuously, albeit at preferably regular time intervals, ie with pauses between individual measurements.
  • the washer-extractor 10 can be operated with all of the methods described above according to the invention or make use of all the described process steps, for which always only weight determinations are required and, above all, the weight determinations serve several purposes. However, it is also conceivable to realize in a washer-extractor 10 only some of the above-described method or method steps according to the invention.
  • the invention is also suitable for laundry centrifuges, which are used only for dewatering, namely spinning, previously washed in a washing machine laundry.
  • a laundry centrifuge weight sensors are assigned in the bottom of the base frame, which are supported on the feet of the laundry centrifuge.
  • the weight sensors can be designed and mounted in the same way as FIGS. 2 and 3 in connection with the previously described washer-extractor 10, especially since a laundry centrifuge basically corresponds in design to the washer-extractor 10.
  • the weight of the laundry with the bound liquor is determined when the laundry centrifuge is loaded.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
EP06016285A 2005-09-06 2006-08-04 Methode et appareil de laver et essorer de linge Withdrawn EP1760186A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005042381A DE102005042381A1 (de) 2005-09-06 2005-09-06 Verfahren und Vorrichtung zum Waschen und/oder Schleudern von Wäsche

Publications (2)

Publication Number Publication Date
EP1760186A2 true EP1760186A2 (fr) 2007-03-07
EP1760186A3 EP1760186A3 (fr) 2011-07-06

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Family Applications (1)

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EP06016285A Withdrawn EP1760186A3 (fr) 2005-09-06 2006-08-04 Methode et appareil de laver et essorer de linge

Country Status (3)

Country Link
US (1) US7610644B2 (fr)
EP (1) EP1760186A3 (fr)
DE (1) DE102005042381A1 (fr)

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EP2113603A1 (fr) 2008-04-30 2009-11-04 BSH Bosch und Siemens Hausgeräte GmbH Appareil de séchage de linge et procédé de commande d'un processus de séchage de l'appareil de séchage de linge
EP2559800A3 (fr) * 2011-08-15 2015-10-28 Whirlpool Corporation Appareil et procédé pour déterminer la quantité de linge dans une machine de traitement de linge pendant le chargement et pour fournir des indications le concernant
DE102014107705A1 (de) 2014-06-02 2015-12-03 Miele & Cie. Kg Verfahren zum Betreiben einer Schleudermaschine und Schleudermaschine

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US8713976B2 (en) * 2006-12-29 2014-05-06 General Electric Company Systems and methods for controlling operation of a washing machine
BRPI0701962A2 (pt) * 2007-06-18 2009-02-10 Whirlpool Sa mÉtodo para controle operacional de uma mÁquina lavadora de roupas e mÁquina lavadora de roupas
US20090106913A1 (en) * 2007-10-30 2009-04-30 Suel Ii Richard D Measuring apparatus and method
EP2268331A2 (fr) * 2008-03-21 2011-01-05 Biomimedica, Inc Procédés, dispositifs et compositions permettant de faire adhérer des implants polymères hydratés sur un os
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US7610644B2 (en) 2009-11-03
US20070068032A1 (en) 2007-03-29

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