EP2455530A1 - Method and device for treating, in particular wet treating, articles of laundry - Google Patents

Abstract

The laundry is washed by moving laundry in a treatment liquid (17) stored in stationary tank (12). The laundry is partially washed in treatment liquid by vibration offset. The pressure waves are generated in treatment liquid using ultrasound and the laundry article (10) is washed, dried and smoothed. An independent claim is included for device for wet treatment of laundry.

Description

The invention relates to a method for wet treatment of laundry according to the preamble of claim 1. The invention further relates to a method for treating laundry according to the preamble of claim 7 and a device for wet treatment of laundry according to the preamble of claim 10.

In commercial laundries, items of laundry undergo various treatments. The essential treatments are the wet treatment, such as the washing and optionally an aftertreatment, for example a finishing treatment, and the smoothing, especially mangling.

Above all, the washing is done so far in washing machines with a rotating drivable drum. A laundry item is moved with a rotating drum in a treatment liquid, and thereby washed, in particular prewashed and washed clear. Aftertreatment, such as, for example, equipping the laundry batch, takes place in a corresponding treatment liquid in the rotating drum. After washing, the laundry items are optionally smoothed after prior dewatering and / or drying. The smoothing is done mainly with a defect. Entering the laundry items in the shortage or other smoothing done by a so-called input machine, the opposite corner areas of Rands grips each of a piece of laundry on staples, spreads, and enters the lack or the like.

Although known methods of treatment, in particular washing machines with rotatable drums drums have proven for decades, but they have some disadvantages. Especially the rotating storage of the drum and the drive of the same are complicated and prone to failure. The rotating drive of the drum requires relatively much energy, and especially because the treatment liquid must be moved as a result of the rotating drive of the drum. In addition, especially laundry items made of sensitive materials are exposed to considerable mechanical stresses by the post-washing in the rotating drum.

Based on the above, the present invention seeks to provide a method and apparatus for simple, energy-saving and gentle treatment, especially wet treatment of laundry.

A method for achieving this object comprises the measures of claim 1. Accordingly, it is provided to enable the treatment liquid to vibrate. As a result, the laundry is washed by the otherwise stationary treatment liquid. Preferably, the laundry is washed by the only vibrated treatment liquid without a per se conventional division of the washing process in a prewash and a clear wash in a single operation, in particular finished washed.

It is preferably provided to set the treatment liquid in at least one stationary basin or other container in vibration. The still pool is not driven in rotation unlike the drum of known washing machines. The pelvis does not change its position when treating the laundry items. The pool can be installed stationary in the laundry and requires no movement drives. The thus stationary pool thus requires no energy to move it. The treatment, in particular washing, of the laundry items takes place essentially only by vibrations of the treatment liquid.

The treatment liquid is preferably set in vibration by means of pressure waves, which in a preferred embodiment of the invention are sound waves, in particular ultrasonic waves. The invention thus provides for ultrasonic washing of the laundry items. Additionally or alternatively, other means may be used be provided to generate pressure waves in the pool, such as mechanical, electrical or hydraulic vibration and / or imbalance. Even by such means, pressure waves can be generated with relatively little energy and thereby put the treatment liquid in such vibrations that have an effective wet treatment, especially an effective washing, the laundry result.

A preferred development of the method provides for moving the items of laundry in the exposed, preferably at least for the most part expanded condition, through the vibrating treatment liquid. Preferably, the laundry items are individually, without touching adjacent laundry items, moved through the vibrated treatment liquid, in particular continuously. The fact that the laundry items individually, without touching each other and are pulled in particular in the expanded state by the treatment liquid, an effective washing of the laundry items can be done with the vibrated treatment liquid. Because the laundry items do not touch or overlap each other, they are surrounded on all sides by the vibrated treatment liquid, which makes this type of wet treatment, especially the ultrasonic washing, particularly effective. Due to the vibrated treatment liquid, a movement takes place between the laundry and the treatment liquid. In addition, a relative movement between the laundry and the treatment liquid is created by the preferably continuous pulling of the laundry through the treatment liquid. This enhances the effectiveness of the cleaning. Due to the above measures, only by the vibration in the treatment liquid with otherwise stationary treatment liquid, in particular stationary basin or container for holding the treatment liquid, an effective washing takes place, which is brought about or at least supported by the vibration in the treatment liquid and optionally the passage of the Washing through the treatment liquid.

A further advantageous embodiment of the method, it provides that the laundry items individually in the at least partially deployed state hanging on at least one clip or held by at least one clamp to be pulled through the vibrated treatment liquid treatment. Preferably, each piece of laundry, when pulled through the vibrated treatment liquid, is held on two brackets which are associated with opposite corners of an edge of the item of laundry. From these two brackets For example, the laundry may be spread out and pulled through the vibrated treatment liquid.

An alternative method for the solution of the above-mentioned object, which may be a preferred development of the method described above, is characterized in that the laundry items individually with adjacent corner regions of an edge at least partially spread on parentheses are pulled through the treatment liquid. As a result, the at least partially spread laundry items are fully accessible from the treatment liquid. Above all, however, the pieces of laundry which have been individually spread out on the brackets can be supplied by the same brackets to subsequent treatments. Each piece of laundry needs so only once before the laundry in the two opposite corner regions of an edge, in particular a leading edge, holding brackets to be entered. The individual items of laundry may then be supplied from the staples to a plurality of successive treatments without the need to transfer the individual items of laundry to other staples.

It is preferably provided to supply the individual items of laundry held on staples from the clamps of a device for smoothing the items of laundry, preferably a defect. Because the staples hold the respective garment in the spread state in the previous treatments, especially washing, the garment can be supplied from these staples in the spread state of the defect or the like, without previously on normally shortage arranged input machines for spreading the garment and other parentheses assigned to it must be passed. Optionally, it may be provided to increase the distance of the opposite corner regions of a leading edge of the laundry holding clamps for entering the laundry item in the defect or the like, so that the front edge of the laundry item when entering into the defect or the like is stretched more. This can be done without handing over the garment to other brackets by the distance between those brackets, which also transport the garment in particular by the wet treatment, is increased and so the garment in question is more spread.

An advantageous embodiment of the method, it provides that the brackets move it held each individual laundry item after washing through or over a drainage and / or drying section and only then enter the parentheses the individual laundry item in the shortage or the like. This way you can Clamping of the laundry for different treatments are avoided and the laundry may also be as previously washed, be transferred from the same brackets to the defect or the like.

According to another embodiment of the method, elongate, web-shaped laundry is preferably pulled continuously through the treatment liquid. This makes it possible to treat laundry in the form of so-called laundry or towel rolls with the inventive method, in particular to wash. A dirty roll is unwound as a web pulled through the treatment liquid and wound up the washed web again. This results in a continuous pulling the web through the treatment liquid, wherein there is always another portion of the web in the treatment liquid and so the web is washed over its entire length gradually.

An apparatus for solving the above-mentioned problem has the features of claim 10. Accordingly, the container or the basin for receiving the treatment liquid, in particular the washing liquid, as immobile, so stationary or stationary, container is formed. In addition, the container is associated with at least one means for generating vibrations of the treatment liquid and at least one transport means for moving the laundry through the treatment liquid in the container. By the stationary container or the stationary pool is unnecessary rotatable storage and a rotating drive conventional drum. As a result, the device according to the invention can be constructed much simpler and less expensive. The movement of the treatment liquid caused by rotation of the drum in conventional devices of this type is, according to the invention, replaced by at least one means for generating vibrations in the treatment liquid. This agent can be very simple and requires little energy. The individual items of laundry are moved through the stationary container with the treatment liquid standing still apart from the oscillations by the transport device. At least one transport device is required anyway in devices of this type, so that thereby the device is not complicated.

According to an advantageous development of the device, the at least one means for generating vibrations in the treatment liquid is designed as a sonotrode, preferably an ultrasonic oscillator. It is particularly expedient to provide a plurality of sonotrodes or ultrasonic oscillators.

Preferably, the or each means for the generation of vibrations in the treatment liquid is associated with at least one wall of the container. It is particularly advantageous to provide a plurality of sonotrodes or ultrasonic oscillators which are assigned to different walls, possibly also to all walls, of the container, in particular on the outside. By the at least one means for generating vibrations, the relevant wall of the container is excited, in particular in vibrations or vibrations. These vibrations are then transmitted from the respective wall to the treatment liquid in the container, whereby the treatment liquid is vibrated.

Furthermore, it is provided that the transport device has movable clamps, preferably a plurality of pairs of clips, wherein each pair of clamps is designed to hold opposite corner regions of an edge of a single item of laundry. From the chambers, the items of laundry can be moved or pulled individually, preferably in a freely suspended and / or spread or spread state, not only for washing by the treatment liquid. Rather, individual items of laundry can also be transported by the same brackets through subsequent treatment areas, especially in the extended stretched out of the brackets state directly into the defect or other device for smoothing laundry be passed. As a result, an input machine for the spreaded input of laundry items in the defect or the like unnecessary.

According to another preferred embodiment of the device, the brackets in the state immersed in the treatment liquid can be pulled through the container with the treatment liquid in the direction of treatment. As a result, a laundry item held thereon can be immersed in the treatment liquid by the clamps, so that the respective spread laundry item can be pulled through the treatment liquid continuously in the state completely immersed in the vibrated treatment liquid.

A further advantageous embodiment of the device provides, at least a shortage or other device for smoothing the laundry items nachordnen the container and the conveyor so that of the brackets held therein held, washed laundry is directly entered into the defect or the like. If necessary, it may be provided that between the container for washing the laundry items and the lack or the like other treatments of Laundry items take place, for example, a dewatering and / or drying or at least a predrying. Both dewatering and drying can be done in several ways. In the simplest case, the dewatering can be done by draining the laundry items and drying by air drying. The dewatering or drying can be assisted by air jets, in particular hot air jets.

An alternative embodiment of the device relates to the treatment, in particular washing, of laundry items in the form of a rolled-up elongated web, so-called towel or laundry rolls. In such a device, the at least one conveyor at least one rotatably driven drum and / or coil for moving the path of the laundry item through the basin. The web is unwound from the roll in front of the pool and rewound behind the pool to another roll. During rewinding, a portion of the web located between the bobbins is continuously drawn through the pelvis, with a portion of this portion of the web located between the bobbins always being immersed in the pelvis and subjected to a wet treatment.

Fig. 1

eine schematische Darstellung einer Vorrichtung zum Waschen von Wäschestücken im Längsschnitt,

Fig. 2

die Vorrichtung der Fig. 1 mit einer nachgeordneten Mangel,

Fig. 3

ein weiteres Ausführungsbeispiel einer Vorrichtung zum Waschen von Wäschestücken in einem Längsschnitt analog zur Fig. 1, und

Fig. 4

ein Ausführungsbeispiel einer Vorrichtung zum Waschen von Wäscherollen im vertikalen Querschnitt.

Preferred embodiments of the invention will be explained in more detail with reference to the drawing. In this show:

Fig. 1

a schematic representation of a device for washing laundry in longitudinal section,

Fig. 2

the device of Fig. 1 with a subordinate defect,

Fig. 3

a further embodiment of an apparatus for washing laundry in a longitudinal section analogous to Fig. 1 , and

Fig. 4

An embodiment of an apparatus for washing laundry rolls in vertical cross-section.

The in the Fig. 1 The apparatus shown is used for washing laundry items only hinted at 10. The laundry items 10 are preferably flat linen in particular square shape. However, the invention is also suitable for washing other items of laundry 10, for example items of clothing, floor mats, laundry rolls (towel rolls) or the like. The laundry items 10 are washed in the device in one pass. It is also conceivable, two or more devices of the Fig. 1 to be arranged in succession in the treatment direction 11, so that in the first device, a pre-wash takes place and in the subsequent device a clear wash.

The device has a container for washing the laundry items 10 serving, in the embodiment of the Fig. 1 is formed as an elongated trough or trough-like basin 12. The pool 12 is fixedly installed at the intended location of the laundry and thus immovable. The basin 12 thereby requires in comparison to the driven drums of known continuous washing machines via no drive. The basin 12 has a flat bottom 13 which is surrounded by a circumferential upright wall, namely longitudinal side walls 14 and transverse side walls 15. It is also conceivable that, unlike the embodiment shown, the longitudinal side walls 14 and / or the transverse side walls 15 obliquely, ie at an angle of greater than 90 ° to the bottom 13, extend. In the exemplary embodiment shown, each transverse side wall 15 is assigned an upper edge 16. Such an upper edge may also be present on the longitudinal side walls 14.

The liquid level of the treatment liquid 17 in the basin 12 is selected so that the items of laundry 10 are completely immersed in the treatment liquid 17 during washing.

The treatment liquid 17 is caused to vibrate in the basin 12 for washing the laundry items 10. Apart from the vibrations no further movement of the treatment liquid 17 takes place in the tank 12. The vibrations of the treatment liquid 17 in the tank 12 are generated by provided on the walls of the tank 12 vibrator or vibrators. In the exemplary embodiment shown, sonotrodes 18 are provided outside the basin 12, which are in communication with the outer sides of both the bottom 13, the two longitudinal side walls 14 and also the two transverse side walls 15. The sonotrodes 18 are preferably designed as ultrasonic vibrators that excite all the walls of the pelvis 12, namely vibrate or vibrate. The vibrations of the walls of the basin 12 are transmitted to the treatment liquid 17 in the basin 12, thereby causing the treatment liquid 17 to vibrate. The Sonotrodes 18 or other vibration generators or vibrators are preferably attached to such locations of the basin 12, in particular at such locations of the longitudinal side walls 14, the transverse side walls 15 and the bottom 13, that the treatment liquid 17 in the tank 12 is vibrated as uniformly as possible. It is also conceivable to assign only a few selected walls of the basin 12 sonotrodes 18 or the like.

The laundry items 10 are pulled by at least one conveyor 19 above the basin 12 in the treatment direction 11 through the pool 12. In the embodiment of Fig. 1 two parallel, same conveyor 19 are provided. Each conveyor 19 has a circulating circulating conveyor line 20, of which in the Fig. 1 only a rectilinear section extending parallel over the basin 12 is represented symbolically. Each conveyor line 20 may be formed by one or more parallel circulating conveyor rails, in which symbolically in the Fig. 1 shown carriages 21 are movable. From in or on the conveyor rail along movable, circumferentially driven conveyor strands, such as conveyor chains, the carriage 21 are moved on the conveyor rail along the conveyor line 20. On each carriage 21, a downwardly directed support rod 22 is arranged, which carries a bracket 23 at the lower end. In the illustrated embodiment, the bracket 23 is aligned by a lower right-angled bend of the support rods 22 so that here her not shown clamp mouth lies in a horizontal plane. In the clamp mouth of the clip 23, a portion of the laundry article 10 is fixed.

In the device shown here, each piece of laundry 10 is held by two identical brackets 23, which lie on a horizontal line which extends transversely to the treatment direction 11 at a distance from each other. In the presentation of the Fig. 1 is the respective laundry item 10 holding the second bracket hidden behind the first bracket 23, so that only this first or front bracket 23 is visible. The holding each piece of laundry 10 brackets 23 have such a distance that they hold opposite corner regions of a transversely to the treatment direction 11 horizontally spread or extended front edge 24 of the laundry article 10.

Since differently sized laundry items 10 with different lengths of leading edges 24 usually follow one another, the distances between the laundry items 10 holding brackets 23 can be changed. This can be done in various ways, for example by pivoting at least one support rod 22 in a direction transverse to the treatment direction 11 vertical plane. But it is also conceivable that the clothes holding a piece of laundry 10 23 have a distance that is only so large that without changing this distance laundry items 10 all sizes in question can be detected. Then larger pieces of laundry 10 are not taken at the opposite corners of the leading edge 24 of the brackets but only with a lying between the opposite corners central region of the leading edge 24 or the leading edges 24 larger laundry items 10 hang between the brackets 23 stronger.

In the embodiment of Fig. 1 At the end of each support rod 22, a bracket 23 is arranged. The adjacent in the basin 12 brackets 23 are then on two parallel conveyors 19 with parallel conveyor lines 20 and synchronously in the treatment direction 11 along the parallel conveyor lines 20 further moving carriage 21. Alternatively, it is also conceivable to provide only a single rotating conveyor 19, in which the same support rod 22 of each carriage 21 two with adjacent spacing adjacent brackets 23 are attached simultaneously.

In the apparatus shown here, the support rods 22 are variable in length. As a result, the brackets 23 can be moved away with a piece of laundry 10 over the edges 16 of the transverse side walls 15. In the area of the basin 12, the brackets 23 can be lowered from the holding rods 22 into the treatment liquid 17. Alternatively, it is also conceivable to provide the conveying path 20 with an oblique course in front of and behind the edge 16 of each transverse side wall 15 so that the clamps 23 travel along the Conveyor 20 can be moved up and down for immersion in the treatment liquid 17 at the beginning of the basin 12 and for emptying out of the treatment liquid 17 at the end of the basin 12.

The Fig. 2 shows the apparatus for washing the laundry items 10 according to the Fig. 1 The defect 25 follows the rear edge 16 of the treatment liquid 17 containing the treatment liquid 17 in the treatment direction 11. In the embodiment shown, the edge 16 on the rear transverse side wall 15 is extended to the inlet side 26 of the defect 25 The edge 16 may be connected to a lacking well 27 of the defect 25 on the inlet side 26 of the defect 25. The extended to the defect 25 edge 16 extends approximately horizontally in the embodiment shown. But it can also extend to the defect 25 sloping sloping or obliquely sloping.

Due to the extension of the edge 16 of the rear transverse side wall 15 of the basin 12, a support surface 28 for the washed laundry items 10 is formed between the end of the basin 12 and the defect 25. The support surface 28 can lead to the discharge of treatment liquid 17, in particular that bound in the laundry items 10 Treatment liquid 17, be perforated or lattice or reticulate.

It is conceivable between the end of the basin 12 and the defect 25 one in the Fig. 2 not shown additional treatment section for dewatering and / or drying, in particular pre-drying, the laundry items 10 provide. In particular, the predrying can be done by air drying, and it is conceivable to reduce the drying time by subjecting the laundry items 10 in the region of the support surface 28 with air jets, in particular hot air jets, radiant heaters or the like. In the case of dewatering and / or drying of the laundry items 10 between the basin 12 and the defect 25 is advantageous to provide the support surface 28 with a length which is greater than in the Fig. 2 shown and sufficient to dry the laundry items 10 before the defect 25 sufficiently or at least pre-dry.

The inventive method is described below with reference to the Fig. 1 and 2 described in more detail:

In each case a single item of laundry 10 is manually entered with opposite corner regions of the front edge 24 in the on a horizontal transverse to the treatment direction 11 extending line adjacent brackets 23. This is done on at least one treatment direction 11 seen in front of the pool 12 arranged loading stations. The loading station for entering individual items of laundry 10 in the brackets 23 is in the Fig. 1 and 2 not shown.

After entering a piece of laundry 10 in the adjacent brackets 23 which is on the brackets 23 with transverse to the treatment direction 11 extending horizontal leading edge 24 hanging freely over the edge 16 on the front transverse side wall 15 of the basin 12 is pulled away. Thereafter, the laundry item 10 is lowered from the brackets 23 into the treatment liquid 17 in the basin 12. The laundry item 10 is now pulled in the substantially flat-lying expanded state of the brackets 23 through the treatment liquid 17 in the tank 12. The spread laundry article 10 is completely immersed in the treatment liquid 17. The garment 10 moves with horizontal transverse front edge 24 behind the brackets 23, when the brackets 23 are preferably continuous is pulled by the conveyor 19 in the treatment direction 11 through the treatment liquid 17.

The treatment liquid 17 is set in the tank 12 in vibration. Serve the outside of the walls of the tank 12 arranged sonotrodes 18, which excite the walls with ultrasound. The excited by the sonotrodes 18 walls of the basin 12 bring the treatment liquid 17 in total to vibrate. Due to the vibrations of the treatment liquid 17, an ultrasonic washing of the laundry items 10 takes place. Because the laundry items 10 are spread out and pulled freely through the pool 12 with the vibrated treatment liquid 17, the oscillating treatment liquid 17 can influence the laundry items 10 on all sides and wash them. The washing effect is also assisted by the drawing of the laundry items 10 through the treatment liquid 17 taking place from the clamps 23 in the treatment direction 11.

The basin 12 shown here is dimensioned so that a plurality of spaced-apart spread laundry items 10 are immersed in substantially flat state in this simultaneously and thereby at the same time several items of laundry 10 can be washed with ultrasound. So that when pulling through the basin 12, the successive laundry items 10 do not touch or overlap, the brackets 23 are arranged at a sufficient distance on the conveyor 19. In particular, the carriages 21 have a correspondingly large distance along the conveying path 20.

In the exemplary embodiment shown, up to four laundry items 10 are present in the treatment liquid 17 at the same time. However, it is conceivable to provide the bowl 12 with such a length that a smaller or larger number of successive laundry items 10 are simultaneously drawn through the vibrating treatment liquid 17 can. It is also conceivable to provide the basin 12 with such a width that the items of laundry 10 not only follow one another but can also be pulled next to one another, ie in several parallel paths, through the vibrating treatment liquid 17 of the same basin 12.

After being washed by the oscillating treatment liquid 17, the laundry article 10 is lifted out of the basin 12 by the clips 23 and pulled out of the basin 12 via the rear edge 16. After that, on any Way subsequent treatments of each garment 10 are made.

The Fig. 2 shows an embodiment of the invention in which the washed by ultrasound in the vibrating treatment liquid 17 in the basin 12 laundry 10 is input from the brackets 23 via the support surface 28 in the subsequent defect 25. This input can be done with the brackets 23, which have pulled the laundry item 10 during washing by the treatment liquid 17, because the brackets 23 hold the laundry item 10 with particular extended leading edge 24. As a result of the already spread front edge 24 can be entered from the brackets 23, the laundry item 10 directly to the inlet side 26 in the defect 25.

The support surface 28 can serve for draining and predrying of the respective item of laundry 10. Depending on the length of the support surface 28, the laundry item 10 may be more or less separated from the adhering treatment liquid 17 from the basin 12 before the defect 25 and pre-dried. To intensify the pre-drying, the support surface 28 is extended in the treatment direction 11, in particular to the extent that it is longer than in the treatment direction Fig. 2 shown. It is also conceivable to provide 28 devices for accelerating the drying or predrying in the region of the support surface. These may be radiant heaters, compressed air jets and / or hot air jets.

The washed in the pool 12 with ultrasound laundry 10 is released after the eventual dewatering or pre-drying during subsequent input into the defect 25 of the brackets 23. The liberated from the brackets 23 laundry 10 then runs with spreading front edge 24 ahead of the inlet side 26 in the defect 25. The empty brackets 23 are transported back on the endless conveyor line 20 of the respective conveyor 19 to the loading station in front of the basin 10, where manually the next isolated laundry 10 is entered into two adjacent brackets 23.

The Fig. 3 shows an embodiment of the device according to the invention, which differs from the embodiments described above essentially only in that the laundry items 10 are moved in a different orientation by a pelvis 29. The tank 29 also contains vibrated treatment liquid 30.

In the exemplary embodiment shown, the items of laundry 10 are transported through the treatment liquid 30 in the basin 29 in the treatment direction 11, suspended under the clamps 31. Each item of laundry 10 is also held by two brackets 31 at opposite corners of a horizontally oriented front edge 32. In this case, the front edge 32 between the two brackets 31 is almost stretched. The two each piece of laundry 10 holding brackets 31 follow each other in the treatment direction 11 at a distance. As a result, the vertical plane of the respective laundry item 10 suspended under the clamps 31 extends in the treatment direction 11. Alternatively, it is also conceivable to move the laundry items 10 transversely to the treatment direction 11 under the clamps 31, through the basin 29. As a result, a larger number of items of laundry 10 can be washed simultaneously in the basin 29 by the treatment liquid 17 vibrated by ultrasound. The spacing of the successive pieces of laundry 11 hanging transversely under the clamps 31 is selected so that adjacent washing items 10 do not touch each other when passing through the treatment liquid 17.

Also in the in the Fig. 3 As shown, the laundry items 10 with the brackets 31 are completely submerged in the treatment liquid 30. As a result of hanging under the brackets 31 laundry items 10, the level of the treatment liquid 30 in the basin 29 is higher than in the Fig. 1 and 2 shown devices. The basin 29 is formed correspondingly deeper. The depth corresponds at least to the largest garment 10 hanging under the clamps 31.

The conveyor 33, which is arranged at a distance above the basin 29, has a circulating conveying path 34 which has an obliquely rising or falling conveyor section 35 at the beginning and at the end of the basin 29. As a result, the item of laundry 10 hanging in each case under two clamps 31 is immersed in the treatment liquid 30 at the beginning of the basin 29 and withdrawn from the treatment liquid 30 at the end of the basin 29.

The inventive method runs with the device of Fig. 3 just as with the device of Fig. 1 and 2 , Only the laundry items 10 are washed in the hanging down from the brackets 31 state of the vibrated treatment liquid 30 in the basin 29. This washing also takes place essentially only by ultrasound in the treatment liquid 30, which is stationary apart from the vibrations.

After being ultrasonically washed in the vibrated treatment liquid 30, the laundry is up-moved from the treating liquid 30 in the basin 29 from the brackets 31 along the inclined-up conveyance portion 35 of the conveyor 33 and supplied to the respective subsequent treatment.

The ultrasonically washed laundry items 10 may be individually input from the clamps 31 into a defect 25 or other means for smoothing. It may be provided to hanging under the brackets 31 laundry items 10, 34 to orient the brackets 31 with the laundry items held by a corresponding course of the conveyor line 34 so that a direct input into the defect 25 can be done without the laundry items 10th must be passed from the brackets 31 to other brackets.

It is also conceivable, between the basin 29 and the lack of further treatment of the laundry items 10 make, for example, a dehydration and / or predrying. This can be done in the same way as previously in connection with the embodiment of Fig. 1 and 2 explained.

The invention is also suitable for treating, in particular washing, other laundry, such as sheet-like items of laundry, in particular laundry or towel rolls. In this case, the laundry is pulled as a web through the vibrated treatment liquid in the tank and thereby washed by the vibrating treatment liquid, in particular subjected to ultrasonic washing. The web is thereby deducted from a roll arranged in front of the basin, guided by deflection rollers through the vibrated treatment liquid in the pool, led out of the pool and smoothed after a possibly successful drying, in particular predrying, in a defect or the like. The washed and smoothed sheet-shaped laundry is wrapped behind the defect again on a roll.

The Fig. 4 shows an embodiment of an apparatus for washing sheet laundry, namely a scrubber roller, not shown. This device has a standing basin 36 with a fully open top 37. In the basin 36 is a hollow separator 38. The separator 38 is arranged eccentrically in the basin 36 that he separates this into two different sized, separate sub-basin, namely a large sub-basin 39 and a small sub-basin 40. Both sub-basin 39 and 40 are connected to the bottom 41 of the basin 36 by a connection channel 42. The connection channel 42 is formed by terminating the underside of the separator body 38 at a distance above the bottom 41.

While the larger sub-basin 39 forms a kind of soaking basin, the smaller, narrow sub-basin 40 serves to gradually wash the scrubbing roller by means of vibrating treatment liquid 43. In this case, an ultrasonic washing or ultrasound treatment of the section 40 located in the small basin 40 of the web 44 of the laundry roller or towel roll takes place.

In order to set the treatment liquid 43 in the small sub-basin 40 in vibration, 40 are associated with other opposing upright walls of the small sub-basin sonotrodes 45 or other Schwingungserreger. These sonotrodes 45 are therefore at the small. Partial tank 40 limiting side of the hollow separator 38 and on the small part of the basin 40 bounding outer wall of the basin 36th

The web is withdrawn from a roll of dirty laundry, not shown, in the treatment direction 46, transported through the large sub-basin 39 and then through the small sub-basin 40 and led out in the treatment direction 46 from the basin 36 for rolling on a roll of washed laundry. Before rolling, the laundry is at least dried. It can also be subjected to further treatments.

The laundry is continuously conveyed through continuous running and rewinding through the basin 36. In this case, there is always a portion of the entire located on the roll path 41 of the laundry in the basin 36, and immersed in the treatment liquid 43. The web 41 runs from above the open top 37 into the large sub-basin 39 a. In this case, the web 44 is accordion-like to the bottom 41 of the large sub-basin 39. In the large sub-basin 39 so takes place soaking the laundry. In this case, the treatment liquid 43 does not need to be vibrated in the large sub-basin 39, although it is conceivable to produce at least slight vibrations in the large sub-basin 39. Of the idler pulleys 47, the web 44 is passed just above the bottom 41 of the basin 36 from the large sub-basin 39 into the small sub-basin 40. In the small sub-basin 40, the washing takes place by the trailed vertically from bottom to top through the small sub-basin 40 web 44 of the on both sides of the of the Sonotroden 45 vibrated treatment liquid 43 is washed, namely an ultrasonic washing takes place.

LIST OF REFERENCE NUMBERS

10

laundry

11

treatment direction

12

pool

13

ground

14

Longitudinal side wall

15

Transverse side wall

16

edge

17

treatment liquid

18

sonotrode

19

promoter

20

conveyor line

21

carriage

22

Handrail

23

clip

24

leading edge

25

defect

26

inlet side

27

mangle trough

28

bearing surface

29

pool

30

treatment liquid

31

clip

32

leading edge

33

promoter

34

conveyor line

35

Conveyor line section

36

pool

37

top

38

separating body

39

large partial basin

40

small partial basin

41

ground

42

connecting channel

43

treatment liquid

44

train

45

sonotrode

46

treatment direction

47

Umlenktrommel

Claims (15)

Process for the treatment, in particular for the wet treatment, of laundry, wherein the laundry is washed by movement in a treatment liquid (17, 30, 43), characterized in that the laundry is at least partially washed by vibrated treatment liquid (17, 30, 43) becomes. A method according to claim 1, characterized in that the treatment liquid (17, 30, 43) in at least one stationary basin (12, 29, 36) is vibrated. A method according to claim 1 or 2, characterized in that the treatment liquid (17, 30, 43) by pressure waves, which are preferably generated by ultrasound, is vibrated, in particular by an excitation of at least one vibrated and / or vibration wall of the pelvis (12, 29, 36). Method according to one of the preceding claims, characterized in that laundry in the exposed, preferably at least largely expanded state is moved through the vibrated treatment liquid (17, 30, 43), preferably continuously. Method according to one of the preceding claims, characterized in that items of laundry (10) individually in at least partially deployed state on at least one clip (23, 31), preferably two adjacent corner regions of an edge of the respective item of laundry (10) holding brackets (23, 31) , in the immersed in particular completely in the treatment liquid (17, 30) state through the vibrated treatment liquid (17, 30) are moved through. Method according to one of the preceding claims, characterized in that the laundry as elongate web (44) is preferably pulled continuously through the treatment liquid (43), wherein always a portion of the web (44) in the vibrated treatment liquid (43) is immersed , Method for treating items of laundry (10), wherein the items of laundry (10) are washed, dehydrated and / or at least predried in a treatment liquid (17, 30), and smoothed, preferably mangled, in particular according to one or more of claims 1 to 6, characterized in that the laundry items (10) individually with adjacent corner regions of an edge at least partially spread on brackets (23, 31) held and pulled through the treatment liquid (17, 30). Method according to one of the preceding claims, characterized in that the items of laundry (10) held on individual clamps (23, 31) of the clamps (23, 31) of a device for smoothing the laundry items (10), preferably a defect (25), be supplied. Method according to one of the preceding claims, characterized in that the laundry items (10) after washing by the clamps (23, 31) are moved individually through or over a drainage and / or drying section and subsequently the spread laundry items (10 ) individually from the same brackets (23, 31) of the means for smoothing the laundry items (10), in particular the defect (25) supplied. Apparatus for the wet treatment of laundry items (10), comprising a container for treatment liquid (17, 30) in which at least one washing of the laundry items (10) takes place, characterized in that the container is designed as at least one stationary basin (12, 29, 36) is formed, the basin (12, 29, 36) is associated with at least one means for generating vibrations in the treatment liquid (17, 30, 43) and at least one conveyor (19, 33) for moving the laundry items (10) through the treatment liquid (17, 30, 43) in the basin (12, 29, 36) is provided. Apparatus according to claim 10, characterized in that the at least one means for generating vibrations of the treatment liquid (17, 30, 43) of at least one sonotrode (18, 45), preferably ultrasonic oscillator, is formed, wherein the or each sonotrode (18, 45) or ultrasonic vibrators are preferably associated with at least one wall of the basin (12, 29, 36) for exciting the at least one wall of the basin (12, 29, 36) and thereby generating vibrations in the treatment liquid (17, 30, 43). Apparatus according to claim 10 or 11, characterized in that the at least one conveyor (19, 33) movable clamps (23, 31), preferably a plurality of pairs of clips, each pair of clamps for holding opposite corner regions of an edge of a single piece of laundry (10) is formed , Device according to one of claims 10 to 12, characterized in that the clamps (23, 31) in the treatment liquid (17, 30) immersed state in the treatment direction (11) through the treatment liquid (17, 30) in the basin (12, 30 ) are moved through, preferably of at least one conveyor (19, 33), which in particular as a circulating conveyor (19, 33) is formed. Device according to one of claims 10 to 13, characterized in that the basin (12, 29) at least one defect (25) or other means for smoothing the laundry items (10) is arranged downstream and the at least one conveyor (19, 33) is for supplying laundry (10) to the mangle (25) or other means for straightening the laundry (10) by the staples (23, 31). Apparatus according to claim 10 or 11, characterized in that the conveyor comprises at least one rotatably drivable drum and / or at least one coil for moving a laundry item in the form of an elongate web (44) through the basin (36).

Images