The invention relates to a treatment module for a laundry treatment device, comprising a number of treatment brushes, which are each provided for a contact with a laundry item to be treated. Furthermore the invention relates to a laundry treatment device with an aforementioned treatment module and also to a method for operating a laundry treatment device.
With laundry treatment devices, devices are known inter alia in which laundry items mostly hung up individually can undergo a respective treatment. In this type of device, also known in some cases as a laundry treatment cabinet, a movable treatment module is frequently provided in this case, with which at least one treatment step of a respective treatment of the laundry item introduced into the cabinet is undertaken. In this case such a treatment module can have treatment brushes, which come into contact with the introduced item of laundry in the course of the treatment step, in order to smooth the latter.
WO 2020/084315 A1 discloses a laundry treatment device embodied as a laundry treatment cabinet, which has a treatment chamber into which laundry items to be treated can be introduced individually. A treatment module is further provided in the treatment chamber of the laundry treatment device, which can be moved vertically in the treatment chamber and has a flexible steam head. The item of laundry to be treated is spread out in the treatment chamber in order to smooth it, wherein the steam head of the treatment module is brought into contact with the laundry item during the course of the treatment. Moreover treatment brushes are provided on an opposite side of the steam head, which each come into contact with this side of the laundry item during the treatment of the laundry item.
Using the prior art described above as its starting point, it is now the object of the present invention to create a treatment module for a laundry treatment device, wherein folds/creases of a laundry item introduced into the laundry treatment device are able to be removed as far as possible with this treatment module as part of a smoothing process.
Starting from the preamble of claim 1 in conjunction with its characterizing features, this object is to be achieved. Each of the dependent claims following said claim reflect advantageous developments of the invention. A laundry treatment device, in which an inventive treatment module is put into use, is further the subject matter of claims 8 to 10. Moreover the claims 11 to 13 each relate to a method for operating a laundry treatment device.
In accordance with the invention a treatment module comprises a number of treatment brushes, which are each intended for contact with a laundry item to be treated. In this case the inventive treatment module is intended for use in a laundry treatment device, in order there, in a treatment chamber and in the course of a smoothing process, to carry out via the treatment brushes as comprehensive as possible a smoothing of the laundry item introduced into the treatment chamber.
In the sense of the invention the treatment brushes involve components of the treatment module which, during the course of a treatment of a laundry item to be treated, come into contact with the laundry item at bristles or bristle-like protruding elements, in order to introduce mechanical stresses into the laundry item and thereby to reduce folds/creases at least partially. In such cases the bristles or the bristle-like elements preferably consist of an elastic plastic material.
The treatment module is preferably embodied to be accommodated movably in the laundry treatment device, in order to realize an at least one-off movement of the treatment module along the laundry item to be treated during contact of the treatment brushes with the laundry item and, in doing so, to bring about the smoothing of the laundry item here. To this end in particular corresponding guide elements are provided on the treatment module side, via which the treatment module in the assembled state is guided in corresponding guides of the laundry treatment device to present a guided movement in the laundry treatment device.
Further preferably, on the treatment module side, one of more drive apparatuses are provided, via which drive movements can be transmitted to the drive module.
The invention now comprises the technical teaching that each two treatment brushes form at least one pair and, in said pair, are arranged in relation to each other in one treatment position in each case or which can be arranged in the one treatment position in each case in which the treatment brushes of the at least one pair lie opposite one another so that, on positioning of a laundry item between the treatment brushes of the at least one pair, they are in contact with this laundry item on both sides. In other words, in the inventive treatment module at least one pair is provided, which is composed of two treatment brushes in each case. In a treatment position of the treatment brushes of the at least one pair the treatment brushes are positioned in relation to one another in this arrangement so that, on positioning of a laundry item to be treated between the treatment brushes, each of the treatment brushes of the at least one pair comes into contact with the laundry item. In this case the treatment brushes of the at least one pair then act from both sides on the laundry item lying between them. In one variant the brushes of the at least one pair are in this case permanently positioned in relation to one another in the treatment position, while in an alternate variant to this, a positioning of the treatment brushes of the at least one pair in the treatment position from another position is able to be shown.
This type of embodiment of a treatment module has the advantage in this case that, in the two-sided contact of the brushes of the at least one pair with the laundry item which takes place in the treatment position, mechanical tensions are also introduced into the item of clothing on both sides and accordingly a reliable smoothing of folds/creases can be achieved. A permanent positioning of the brushes in the treatment position, as a result of the then fixed positioning of the brushes, allows a simple structure of the treatment module, wherein this variant is especially realized when only one movement along the laundry item to be treated with the treatment module is to be carried out. By contrast positioning of the brushes in the treatment position from another position makes it possible for a multiple movement along the laundry item in one direction of movement to take place, while during movement in the opposite direction, by explicitly leaving the treatment position, contact between the brushes and the laundry item is avoided, which could otherwise result in new folds being introduced into the laundry item. For this a corresponding movable mounting of the brushes in the treatment module is then to be realized.
The treatment brushes forming at least one pair and lying opposite one another in the treatment position are preferably embodied with a shape corresponding to one another. In the treatment position the brushes of one pair are then in particular positioned in parallel to one another, so that in each case a linear or flat contact of the brushes with the laundry item positioned between them is formed. Further preferably the brushes of the at least one pair preferably lie in one plane in each case in the treatment position, wherein these planes are then parallel with one another and are also aligned to a plane in which the laundry item to be treated is arranged in its width and its height direction.
According to one form of embodiment of the invention the treatment brushes of the at least one pair are embodied as rotatable round brushes. In this case the treatment brushes of the at least one pair are present as brushes that are equipped on a cylindrical main body with the bristles or the bristle-like elements and can be rotated for a contact with the laundry item. As an alternative or also as an addition to this form of embodiment, the treatment brushes of the at least one pair are embodied as brush strips. These brush strips have a longitudinal strip-like main body in this case, which is provided on one side with the bristles or bristle-like elements.
If a number of pairs are provided in the inventive treatment module, then the two aforementioned variants can be combined with one another by at least one pair being formed by round brushes and at least one pair by brush strips. The use of a number of pairs of brushes has the advantage that this enables them to move in the widest variety of areas along the laundry item to be treated and smooth it in doing so. Especially preferably the pairs of brushes are aligned in this case so that treatment brushes of one or more pairs with their longitudinal axes or axes or rotation are aligned in a horizontal direction and thus in a width direction of the laundry item to be treated, while the treatment brushes of one or more further pairs with their longitudinal axes or axes of rotation are oriented in a vertical direction and thus in a height direction of the laundry item to be treated. This makes a multi-axis spreading out of the laundry item to be treated possible in that treatment brushes of one or more pairs introduce stresses in the height direction and here in particular directed away from a hanging facility of the laundry item, while the treatment brushes of one or more other pairs bring about stresses in the width direction of the laundry item to be treated.
In a development of one or also both of the aforementioned forms of embodiment bristles of the individual brushes are each inclined away from a central plane of the brush. In an advantageous way a spreading out of the laundry item between them in the width direction of the brush is achieved, which improves the smoothing effect. However other angular alignments of the individual bristles in relation to the main body of the respective brush are conceivable in the sense of the invention.
In a development of the invention the treatment brushes of the at least one pair are adapted by their geometry to the circumstances, such as for example the geometry, of the laundry item to be treated. Thus the treatment brushes of the or the pairs can be arranged in the treatment module in such a way that specific areas of the laundry item to be treated are explicitly left out, such as for example a collar area of a shirt to be treated. On the other hand a separate pair of treatment brushes can also be provided for a specific area of the laundry item to be treated, which, by an arrangement of the associated treatment brushes to the circumstances of the laundry item, is adapted in the corresponding area. In this way, for a button-down front of a shirt to be treated, a number of pairs of treatment brushes can be provided, which are aligned on both sides of the button-down front in a vertical direction, in order to create lower stresses in the area of the button-down front in the horizontal direction, which otherwise would cause folds around the buttonholes of the button-down front.
An advantageous possible embodiment of the invention, which in this case can be used as an alternative or also in combination with one of the aforementioned forms of embodiment, is that one treatment brush is part of two pairs, in which, in the treatment position, this treatment brush simultaneously lies opposite two other treatment brushes. In this case this treatment brush is thus simultaneously involved in two pairs of treatment brushes, which on the one hand has the advantage that thus different pairs can be formed with a lower number of treatment brushes. This accordingly reduces the manufacturing outlay for realizing the inventive treatment module. On the other hand in this case, in particular when embodying the treatment brushes as round brushes, the effect is produced that the contact areas of the treatment brushes with the laundry item to be treated increase, which enhances the smoothing effect that can be produced.
In a development of the invention the treatment brushes of the at least one pair are each accommodated in an assigned part of the frame, wherein the frame parts are able to be moved for positioning the individual treatment brushes in the treatment position. In an advantageous way this enables the positioning of the individual treatment brushes in the treatment position to be realized, wherein a positioning of the individual treatment brushes via the frame part in a position differing from the treatment position, in which these cannot come into contact with a laundry item placed between the treatment brushes of a pair, is then possible as well. This makes it possible only to bring the treatment brushes into contact with a laundry item lying between them when the treatment module and the laundry item are moving relative to one another in a desired direction of movement, while a contact in an opposing direction of movement is excluded by explicit positioning in the different position, in order to prevent new folds/creases being introduced. Especially preferably the frame parts of the treatment module can be moved relative to one another in this case in order to move the frame parts towards one another or away from one another and thereby to initiate or to exclude an assumption of the treatment position of the treatment brushes. As an alternative thereto however a tilting of the current frame part and thus also of the treatment brush accommodated here can also be provided.
According to one form of embodiment of the invention the treatment brushes are each arranged on a telescopic bar, of which the ends are guided movably in a frame in each case. In an advantageous way this enables the movement of the treatment brushes along the laundry item to be treated to be organized with more degrees of freedom, in that the treatment brushes are explicitly positioned at an angle in the frame and in this case a length compensation is realized via the respective telescopic bar.
The subject matter of the invention is moreover a laundry treatment device, which has a treatment chamber, into which a laundry item to be treated can be introduced. The laundry treatment device in this case is preferably embodied in the form of a laundry treatment cabinet, into which laundry items to be treated can be introduced individually. In this case the treatment chamber of the laundry treatment device can have an upstream input magazine and/or a downstream output magazine, wherein in the input magazine a number of individual laundry items to be treated can be introduced in sequence into the treatment chamber or in the output magazine a number of laundry items already individually treated in the treatment chamber are accommodated. A transfer of the individual laundry item between input magazine, treatment chamber and output magazine in this case is further preferably undertaken via a magazine shaft on which the laundry is hung with a hanging facility in particular in the form of a coat hanger.
In the laundry treatment device the treatment module is embodied according to one or more of the aforementioned variants, wherein the treatment brushes of the at least one pair of the treatment module can be brought into contact on both sides with the introduced laundry item positioned between them for carrying out a smoothing process. In an advantageous way a laundry treatment device is implemented by this in which, via the treatment brushes of the treatment module, a reliable smoothing and thereby removal of folds/creases can be achieved.
Preferably in this case the laundry item to be treated, in the course of the smoothing process, is contacted by the treatment brushes of the treatment module either over its complete surface or over at least over a part of its surface, in order to bring about as complete as possible a smoothing of the laundry item. This complete or at least large area contact with the laundry item to be treated is undertaken especially preferably in this case via a number of pairs of treatment brushes, wherein the pairs, by virtue of their alignment, as already described above for the treatment brushes, can lie with different orientations in relation to one another.
According to a form of embodiment of the aforementioned laundry treatment device, the laundry item to be treated is introduced into the treatment chamber via a hanging facility. In this case the treatment module and the hanging facility in the treatment chamber can be moved relative to one another to organize the smoothing process. For carrying out the smoothing process the hanging facility and the treatment module can thus carry out a movement relative to one another, wherein especially preferably in this case a movable mounting of the treatment module in the treatment chamber of the laundry treatment device is provided in order to move the treatment module within the course of the smoothing process relative to the stationary hanging facility and thus also the stationary laundry item to be treated. As an alternative it would also be just as easily conceivable for the hanging facility and the laundry item hung on it to move within the course of the smoothing process, while the treatment module stays in one position.
In a development of the invention the treatment module can be moved and, for bringing the laundry item into the treatment chamber and for taking the laundry item out of the treatment chamber, can be transferred into a parked position. The treatment module can also be moved into a parked position, wherein this, within the framework of the invention, can lie high up or above the magazine shaft, via which the items are brought into the treatment chamber or taken out of the treatment chamber. Moreover the parked position can also be provided below the area in which the laundry item to be treated is moved in the treatment chamber. If the parked position lies above the magazine shaft in this case, then, as a result of the positioning in the parked position, a collision with the laundry item or its hanging facility cannot occur. If on the other hand the parked position lies at the height of the magazine shaft, then it is conceivable within the framework of the invention for the treatment module to be designed divided accordingly or provided with outlets through which a hanging facility of the laundry item to be treated can pass over the magazine shaft when being brought in or taken out.
An inventive laundry treatment device is operated in the sense of the invention in such a way that initially a laundry item to be treated is brought into the treatment chamber of the laundry treatment device, wherein subsequently the treatment brushes of the at least one pair of treatment modules are brought into contact with the laundry item positioned between them for organizing the smoothing process. Then, in the course of the smoothing process, the treatment module and a hanging facility accommodating the laundry item to be treated are moved relative to one another.
According to one form of embodiment of the invention the laundry item is brought into contact with the treatment brushes in the course of the smoothing process at least once, either over its complete surface or over a part of its surface in each case. Especially preferably in this case a multiple contact between the treatment brushes and the laundry takes place by the treatment module and thus also the treatment brushes being guided a number of times over the laundry item to be treated. As already described previously the treatment brushes in this case can preferably be moved individually out of the treatment position in order, in the course of a backwards movement of the treatment module relative to the laundry item to be treated, to avoid any undesired contact between the treatment brushes and the laundry item.
One possible advantageous embodiment of the invention is that the introduced laundry item and the treatment module having round brushes are moved relative to one another in the course of the smoothing process, wherein the individual round brushes of the treatment module are rotated in this case at a speed of rotation that corresponds to a rolling motion speed of the round brush at the laundry item in the course of the relative movement of the treatment module relative to the laundry item. This has the advantage that hereby wear on the item of clothing is avoided, which accordingly protects the material of the laundry item to be treated.
As a variation of the inventive solution it is also conceivable for one brush of each pair of brushes to be omitted and instead to work against a pressure plate through the two layers of the item of clothing with the brush still remaining. To this end this pressure plate would have to be designed for example with at least one smooth surface facing towards the brush. The pressure plate can be provided in a fixed location in this case, wherein, as well as a large fixed-location pressure plate, a pressure plate moving along with the treatment module and thus with the brush can also be employed. The latter could then also be shaped to correspond to the brush, such as with a (flat) cylindrical recess for a round brush pressing onto to it from opposite to it. Moreover a pressure plate for the treatment could also be placed in a fixed location or movably in an inner area of the laundry item to be treated, wherein then the treatment works from one, but preferably from both, outer sides of the laundry item against the pressure plate with treatment brushes.
The invention is not restricted to the specified combination of the features of the main claim or of the claims dependent hereon. Above and beyond this, options are produced of combining individual features with one another, even where they originate from the claims of the description of preferable forms of embodiment given below or directly from the drawings. The reference of the claims to the drawings by the use of reference numbers is not intended to restrict the scope of protection of the claims.
Advantageous forms of embodiment, which are explained below, are shown in the drawings. In the figures:
A schematic view of a laundry treatment device 1 corresponding to a preferred form of embodiment of the invention is disclosed by
Also indicated in
The treatment module 7 comprises a frame 12, via which the guide elements 8 and 9 are connected to one another and which is arranged in an x-z plane surrounding the laundry item 5 just placed in the treatment chamber, so that the laundry item 5 lies in an inner area of the frame 12. In the course of the movement of the treatment module 7 in the y direction this frame 12 travels in this case surrounding the laundry item 5. In the frame 12 in this case, on at least one side of the laundry item 5 a steam head 13 is accommodated, via which water vapor or an aerosol can be introduced into the inner area of the frame 12, in order to apply the water vapor or the aerosol to the laundry item 5 located there. The steam head 13 in this case is connected within the frame 12 via lines 14 to a vaporizer 15 and a tank 16. While the vaporizer 15 is fastened in this case to the treatment module 7 and moves jointly with the latter, the tank 16 is provided in a fixed location in the inner area of the treatment chamber 2 of the laundry treatment device 1. This in particular gives access to the tank 16 from outside, in order to enable this to be filled. In principle an arrangement of a tank on an outer side of the laundry treatment device 1 would also be conceivable.
As well as the steam head 13 a number of treatment brushes 17 are also provided in the treatment module 7, wherein these treatment brushes 17 are each embodied in this case as rotatable round brushes 18 to 32 and in this case lie in the frame 12 in treatment positions opposite one another in pairs in each case, as shown in
The round brushes 18 to 32 in this case are aligned in pairs in the frame 12 in parallel x-y planes so that, in the course of a movement of the treatment module 7, multi-axis stresses in each case are introduced into associated areas of the laundry item 5. In this way, via the round brushes 18, 19, 20 and also 30, 31 and 32, a smoothing of sleeves 34 and 35 of the laundry item 5 is undertaken, while the round brushes 21, 22, 23, 24, 25, 26, 27, 28 and 29 serve to smooth the chest and stomach area 36 and the back area—not visible here—of the laundry item 5. The round brushes 24, 25 and 26 are in this case guided on a front side of the laundry item 5 over the button-down front 37 of the laundry item 5 and, in the y direction by comparison with the round brushes 21, 22 and 23 and also 27, 28 and 29, are placed lying further down in the frame 12, in order to explicitly miss out a collar area 38 of the laundry item 5 during the treatment.
As is indicated in particular in
A structure of a treatment module 47 corresponding to a fifth form of embodiment of the invention is disclosed by
While the round brushes 54 and 55 in this figure are each oriented in the x direction, the round brushes 56 and 57 are each oriented in the y direction. In order to carry out the smoothing of the laundry item 5, a force F is introduced into the laundry item 5 in each case via the rotating round brushes 54 to 57, as indicated in
This is also realized in a similar way in the case of a treatment module 58, which is shown schematically in
Furthermore
The round brushes 63 or 64 assigned in pairs to one another are each arranged on a telescopic bar 65, which is indicated in
Furthermore
Within the course of the smoothing process the treatment module 67 is moved upwards and downwards in the y direction, wherein the round brushes 70 to 74 are each rotated in this case. Once again, a rotation of the round brushes 70 to 74 in this case can be set in each case so that a slight introduction of a force directed away from the hanging facility 6 occurs in the laundry item 5. As an alternative thereto a rotation of the round brushes can however also be chosen so that a speed of rotation of the individual round brushes 70 to 74 corresponds to a rolling motion speed of the individual round brushes 70 to 74 at the laundry item 5 in the course of the movement of the treatment module 67.
A view of a treatment module 75 in accordance with a tenth form of embodiment of the invention emerges from
In the variant according to
Finally, in
A round brush 85 is then shown in
A pressure plate 89 is also provided in the treatment module 88 in the variants according to
By means of the inventive embodiments of a treatment module, when they are used in a laundry treatment device, an optimal smoothing of an introduced laundry item can be carried out.
1 Laundry treatment device
2 Treatment chamber
3 Input magazine
4 Output magazine
5 Laundry item
6 Hanging facility
7 Treatment module
8 Guide element
9 Guide element
10 Guide
11 Guide
12 Frame
13 Steam head
14 Lines
15 Evaporator
16 Tank
17 Treatment brushes
18 Round brushes
19 Round brushes
20 Round brushes
21 Round brushes
22 Round brushes
23 Round brushes
24 Round brushes
25 Round brushes
26 Round brushes
27 Round brushes
28 Round brushes
29 Round brushes
30 Round brushes
31 Round brushes
32 Round brushes
33 Pair
34 Sleeve
35 Sleeve
36 Chest and stomach area
37 Button-down front
38 Collar area
39 Treatment module
40 Brush strips
41 Pair
42 Treatment module
43 Frame part
44 Frame part
45 Treatment module
46 Frame
47 Treatment module
48 Round brush
49 Round brush
50 Round brush
51 Pair
52 Pair
53 Treatment module
54 Round brushes
55 Round brushes
56 Round brushes
57 Round brushes
58 Treatment module
59 Round brushes
60 Round brushes
61 Round brushes
62 Treatment module
63 Round brushes
64 Round brushes
65 Telescopic bar
66 Frame
67 Treatment module
68 Frame
69 Pair
70 Round brush
71 Round brush
72 Round brush
73 Round brush
74 Round brush
75 Treatment module
76 Frame
77 Round brushes
78 Round brushes
79 Magazine shaft
80 Outlet
81 Outlet
82 Round brush
83 Bristles
84 Central plane
85 Round brush
86 Elements
87 Treatment module
88 Treatment module
89 Pressure plate
Number | Date | Country | Kind |
---|---|---|---|
10 2020 210 792.0 | Aug 2020 | DE | national |
Filing Document | Filing Date | Country | Kind |
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PCT/EP2021/070952 | 7/27/2021 | WO |