Washing machine comprising a functional drum structure

Abstract

The present invention relates to a drum having a special structure which enables saving water / fluid and increases the effectiveness of mechanical and chemical treatments in textile washing machines for industrial use. The invention enables textiles to move homogeneously in an almost flowing manner without being divided into groups in the drum by preventing them from adhering to each other with the treatment water. The textiles, which are separated from each other by being caught by the protrusions during rotation of the drum, are moved upwards on the protrusions, and the water inside the water chambers and in the gaps between the protrusions is moved upwards along with the items. The textiles fall down together with the water moving upward with the drum and are much more effectively separated from each other, improving the interaction of each piece with water.

Description

[0001] WASHING MACHINE COMPRISING A FUNCTIONAL DRUM STRUCTURE DESCRIPTION OF THE INVENTION

[0002] The present invention relates to a drum (10) having a special structure which enables saving water / fluid and increases the effectiveness of mechanical and chemical treatments in textile washing machines used for industrial purposes. In front-loading textile washing machines, a drum rotates by means of a shaft-bearing system arranged behind the drum, in a tub (11) partially filled with water / fluid. Washing is achieved by chemical and mechanical actions. It is vital that the amount of water / fluid required in the drum is kept to the minimum amount necessary to meet the requirements of the process in order to increase efficiency of the process.

[0003] AIM OF THE INVENTION

[0004] The invention aims to optimize the process volume and save water by transferring a significant portion of the water present outside the drum, into the drum. This design accelerates both chemical and mechanical treatments, providing an effective washing process.

[0005] BRIEF DESCRIPTION OF THE INVENTION

[0006] In washing machines, as the drum rotates, depending on the direction of rotation it moves the materials upwards approximately to 10-11 o'clock position in clockwise direction and to 2-1 o'clock position in counterclockwise direction, and allows them to fall back on the bottom of the drum. The chemical and mechanical treatment desired for the textile material occurs during this drop and impact on the drum surface.

[0007] In order to save water / fluid required for the desired treatment in the machine, the invention aims to reduce the water present outside the drum (12), namely between the drum (10) and the tub (11), by transferring a significant portion of this water into the drum (10), to thereby reduce the amount of water in this volume and save water. Since the treatment fluid generally used in washing machines is water, the term “water” in this document also covers fluids other than water. The protrusions on the surface of the drum (10), which are sized and shaped to pull textile products apart during the drum's rotation, increase the interaction of the materials under treatment with water, thereby enhancing the effectiveness of chemical and physical treatments, shortening the process duration and enabling saving chemicals. The gaps formed on the surface of the drum (10) allow the treatment water to be moved upwards with the materials during rotation of the drum and increase interaction with the treatment water when the materials fall down in the drum.Industrial machines referred to as textile washing machines in general are used for chemical or mechanical treatments of textiles, such as washing, dyeing, stonewashing, and the like. Machines with a wide range of capacities and features are widely used by textile factories worldwide, from low-capacity machines such as sample washing machines with a drum volume of 100-600 liters used for recipe creation, to industrial machines with a drum volume of 2,000-5,000 liters used in textile production.

[0008] For chemical action, necessary chemicals must be added to the washing water. During washing, water and chemicals passing through drum holes into the drum interact with the material, producing the desired chemical action on the material. Mechanical action is crucial in increasing and accelerating chemical action. In conventional machines, the mechanical washing action is achieved by moving the materials upwards with structures called lifting ribs (32), blades, or agitators, disposed on the perforated surface of the drum, and then dropping them onto the drum surface. Typically, every drum has three or four of these carriers, lifting ribs 32.

[0009] Figure 1 schematically shows a drum (10) with four lifting ribs (32). Once the drum begins to rotate, the textile materials (T) gathered at the bottom of the drum are moved upwards by being divided into quantities which the lifting ribs (32) can carry. Naturally, in a drum with three lifting ribs, the materials are divided into three parts, and in a drum with four lifting ribs, they are divided into four parts.

[0010] When the inner surface of a drum (10) has protrusions as shown in Figure 2, it is known that all mechanical or chemical treatments, in particular stonewashing, are more effective compared to drums having a smooth surface. The applicant's invention, which discloses the features and advantages of a washing machine whose drum surface has protrusions, has been patented underthe number EP2229475B1. In addition, the applicant's invention which discloses a washing machine whose drum surface has protrusions, in which the water present outside a drum (12), between the drum and a tub is collected inside the drum by means of a circulation pump, has been granted by the patent EP3252207B1 .

[0011] The system described in this document encompasses the features described in the above patents, both in terms of the protrusions and reducing the water outside of the drum by collecting it in the drum. It also describes methods that, on the one hand, solve the problems of the aforementioned inventions and, on the other hand, increase the effectiveness of both chemical and mechanical treatments by means of additional features. One of the differences between the system described in this document and the previous patents is that a pump is not used to transfer the water outside the drum into the drum, and that the protrusions differ in shape, size and purpose from those described in the aforementioned patents. Particularlyin treatments such as stonewashing, the treatment water getting quickly contaminated with solid particles due to mechanical processes and the presence of lint, yarn, and fabric particles from textiles in the water causes problems in the pump used to transfer the water outside the drum into the drum, and necessitates the use of filter systems which impact the continuity of the process. When mechanical filters which require frequent cleaning and solid matter separation systems such as cyclones are not used, the debris and particles carried along with water often cause the pump to jam, rendering it inoperable. Another drawback of using a circulation system with a pump to reduce the water in the outer tub (11) and collect it in the drum is that the volume required for this water-saving system leads to consumption of some water. The technique described in this document has been developed to provide both a drum with protrusions and water transfer from outside the drum into the drum without encountering such problems.

[0012] The protrusions of the drum (10) disclosed in the invention differ in function and shape from the protrusions disclosed in EP2229475B1. EP2229475B1 describes the main function of said protrusions as preventing the materials under treatment from blocking the drum holes. To satisfy the conditions of said patent, it is sufficient for the protrusions arranged on the drum surface to be of a size and density which block the materials from reaching the drum holes. However, the protrusions described in this document fulfil the purpose of ensuring materials moved upwards by the drum during its rotation to be caught by the protrusions as they fall onto the drum surface and get separated from each other.

[0013] The surface tension force of water on textile surfaces when textile materials are wet is a factor that impacts the mechanics of chemical treatment. When dry, textile materials can be separated easily from each other. However, when wet, the surface tension force generated by water molecules on textile surface causes the textile items to adhere to each other. In groups of textile items which move together en masse in front of conventional lifting ribs (32) as shown in Figure 1 , it is difficult for chemicals and dyes to pass through the fabric of textile items which adhere to each other forming a mass and to reach the entirety of an item and therefore takes time. Textile items which remain on the outer surface of the piles formed by adhering textile items to one another, contact chemicals or dyes much more effectively, while the chemical interaction of the items located inside the pile and shielded by those outside remains limited. Preventing the items from sticking together and ensuring that they are separated continually from each other throughout the treatment, accelerates the process as well as ensures homogeneity of interaction. For this reason, it is critical that the textile items are separated from each other every time the drum rotates and they drop, as it enables enhancing the chemical action expected from the machine.The invention aims to enable textile products to move homogeneously in an almost flowing manner without being divided into groups in the drum (10) as shown in Figure 2, by preventing them from adhering each other with the treatment water. The textile items, which are separated from each other by being caught by the protrusions during rotation of the drum, are moved upwards on the protrusions, and the water remaining in the gaps between the protrusions is moved upwards along with the items. Since the items fall down together with the water moving upwards in between the protrusions, the items are much more effectively separated from each other when they reach the drum and interaction of each piece with water is improved.

[0014] DESCRIPTION OF THE FIGURES:

[0015] Figure 1 is a sectional view of a commonly used, industrial front loading drum with a conventional structure, having a perforated drum shell and four lifting ribs and schematically shows in sequence the process of the textile items being treated in the drum getting divided and moved upwards by the lifting ribs and then dropping to the bottom of the drum en masse during rotation of the drum.

[0016] Figure 2-A is a sectional view of a drum having protruding water transfer cells arranged with large spaces in between on the drum shell according to the invention and schematically shows the movement of textile items being treated during rotation of the drum.

[0017] Figure 2-B is a sectional view of an industrial, front-loading drum having protruding water transfer cells arranged with large spaces in between on a drum shell according to the invention and schematically shows motion of the textile items which are moved upwards on the projections together with the treatment water moved upwards in the volumes between the protruding water transfer cells by means of the drum's rotational movement, wherein the textile items flow to the bottom of the drum from 1 o'clock position and the textile pieces caught by the projections at the bottom of the drum are pulled and separated from the other items and moved upwards again together with the water.

[0018] Figure 3 is a sectional perspective view of an industrial front-loading drum in a tub according to the invention, wherein water transfer chambers are arranged in series side by side on the drum shell such that a part of each chamber is disposed in the drum and the other part out of the drum.

[0019] Figure 4 is a perspective view from above (A) and from below (B) of a water transfer chamber according to the invention, wherein the water transfer chamber configured to be assembled by joining its lower and upper parts and individually mounted on the drum shell by being placed in a slot formed on the drum shell.Figure 5 is a perspective view from above showing the water transfer chambers, whose upper and lower parts are joined on the drum shell to form a row having a shared volume creating a passage therethrough and two rows of chambers mounted side by side, according to the invention.

[0020] Figure 6 is a perspective view from above of water transfer chambers whose upper and lower parts are joined on a drum shell according to the invention, wherein the water transfer chambers comprise water inlet holes to the drum in the part disposed inside the drum and water drain holes from the drum disposed in the part arranged outside the drum which open in differing directions in adjacent chambers.

[0021] Figure 7 is a sectional schematic view of water transfer chambers, whose upper and lower parts are joined on the cylindrical shell of a drum rotating clockwise according to the invention, showing the water transfer chambers receiving water therein by scooping water as they pass through the treatment water present in the bottom of the tub (A) and draining of the water into the drum by flowing out of the chambers which are positioned upside down as they move up (B).

[0022] Figure 8 is a sectional perspective view of a water transfer chamber whose upper and lower parts are joined on a drum shell according to the invention, showing how water enters through a water inlet opening formed on the lower part of the water transfer chamber when it passes through water in the tub, and how water exits through a water outlet hole formed on the upper part, into the drum, from the water transfer chamber when it is positioned upside down upon moving up.

[0023] Figure 9 is a sectional perspective view of a water transfer chamber, whose upper and lower parts are joined on a drum shell according to the invention, wherein the water transfer chamber is provided with protrusions and troughs between said protrusions, and shows how water enters through a water inlet opening formed on the lower part of the water transfer chamber when it passes through water in the tub, and how water exits through holes formed opposite the inlet opening due to dynamic pressure generated by rotation of the drum and enters into the drum.

[0024] Figure 10 is a perspective view of water transfer chambers with protrusions, whose upper and lower parts are joined according to the invention, wherein said water transfer chambers are placed in slots on a drum shell by being locked to one another and to the drum shell such as to form a single volume through joining of their internal volumes, wherein said chambers thereby form rows arranged side by side and said rows are fixed on the drum shell by means of a locking member placed on the end of each row.Figure 11 is a perspective view of water transfer chambers having protrusions and troughs between said protrusions, arranged side by side and in rows on the shell of a drum rotatable in a water tub, comprising lifting ribs, according to the invention.

[0025] Figure 12 is a perspective view showing how a water transfer chamber is locked to a drum shell according to the invention, wherein locking tabs disposed on an upper part of the water transfer chamber are passed through the holes on a lower part and apertures on the drum shell, and the upper and lower parts are pushed forward together into an indented mounting slot on the drum shell, locking the water transfer chamber to the drum.

[0026] DETAILED DESCRIPTION OF THE INVENTION

[0027] The water present outside the drum (12), in the volume between the drum (10) and the tub (11) is transferred into the drum (10) by means of water chambers (14) which are arranged on the drum shell (13) such that a part of each chamber is disposed inside the drum (10) and the other part is disposed outside the drum (12) (Figure 3). The water inlet opening (15) of a water chamber (14), which opens to the rotation direction, is arranged on the part of the water chamber (14) disposed outside the drum (12). During rotation of the drum (10), water is scooped as the water chamber (14) passes through a water region (16) located at the bottom of the tub (11) and enters through the water inlet opening (15) into a water volume (17) formed in the water chamber (14) (Figure 4). The water in the water chamber (14) which begins moving up with the rotating drum (10), exits through the holes (18) or slits (19) opening into the drum (10) and flows into the drum (10) upon the water chambers (14) reach a height suitable for the water to drain out of the holes (Figure 7). If the drum (10) is configured to rotate in both directions during operation, the water inlet openings (15) of the water chambers (14) should open in both rotation directions. If the water chambers (14) are interconnected and arranged in rows on the drum shell (13), the water chamber inlet opening of one row is directed in clockwise direction (20), and the water chamber inlet openings of the adjacent rows are directed in counterclockwise direction (21) (Figure 6). Thus, to transfer water into the drum (10), when the drum (10) rotates clockwise, water enters through the water inlet opening (15, 20) of the water chamber (14), directed in clockwise rotation direction and when the drum (10) rotates counterclockwise, water enters through the water inlet opening (15, 21) directed in the opposite direction (Figures 6 and 7).

[0028] The water chambers (14) can be arranged on the surface of the drum (10) so as to form separate volumes, that is, to form closed water chambers (22) (Figure 4) or multiple water chambers (14) can be joined and interconnected to form a single combined water chamber (23) (Figure 5). The water transfer chambers (14) forming a water volume (17) disposed in a single water chamber (14) either individually or in an interconnected manner, can consist oftwo parts, the lower part (24) and the upper part (25), for ease of manufacture and assembly. Regardless of whether a water chamber (14) consists of two parts or one part, for the water chambers (14) form a single water volume (17) by being joined, each water chamber (14) is provided with a locking frame (26) on one side and a locking slot (27) on the other side, which form a female-male structure when coupled to an adjacent chamber, sealingly coupling the water chambers (14) to one another to form a single water volume (17). The water chambers (23) are interlocked by sliding on the drum shell (13) and form a single water volume (17), and when they are locked by means of a locking member (28) fitted on the end of a row of combined water chambers (23), they are fixed to the drum shell (13), forming a single volume (Figure 10).

[0029] Water enters a water chamber (14) from the tub (11) through the lower part (24) and water exits a water chamber (14) into the drum (10) through the upper part (25) (Figures 8 and 9). The cross-sectional area of the holes (18) or slits (19) opening into the drum (10) from the water chamber (14) should be greater than the cross-sectional area of the drain holes (29) formed on the drum shell (13) or on the plastic chambers disposed on the drum (10) surface to discharge water from the drum (10). Thereby, water intake flow rate to the drum (10) will be higher than the discharge flow rate and water can be accumulated in the drum (10). Since water will be collected in the drum (10) as long as the drum (10) rotates, the total amount of water required in the machine is reduced compared to the known machines with perforated drum shells (13) and lifter ribs (32), in which there is balance between the amounts of water in the drum and the tub. Amount of water required fortreatment in the machine is thus saved. The concentration of chemicals or dyes in the water, which are required for textile finishing and dyeing treatments, is important. Saving water also enables saving the chemicals and dyes required for the process.

[0030] The water chambers (14) arranged on the drum shell (13) allow forming a surface comprising corrugated recesses (30) and corrugated protrusions (31), on the surface of the drum (10). As is known, on a perforated cylindrical surface of conventional and commonly applied drums (10), there are lifting ribs 32 which lift textile materials (T) upwards during rotation of the drum (10). The water chambers (14) arranged on the surface of the cylindrical drum (10) between the lifting ribs (32), form a surface having an indented corrugated structure (33). (Figure 3) This indented structure formed by the corrugations (33) is not able to carry the materials upward on its own, but it supports the lifting ribs in moving the textile items (T). In order for the water chambers (14) to be more effective in moving the textile items (T) upward with the drum (10), the corrugated structure (33) of the water chambers (14) should have a more effective indented structure.Another feature of the invention is the protrusions (34), which can comprise various shapes and heights, incorporated on the water chambers (14) arranged on the surface of the drum (10). The presence of troughs (35) between said protrusions (34) on the water chambers (14), having a shape and size to enable the protrusions to catch and pull the laundry, will also increase the effectiveness of both carrying and separation of the items. Naturally, deeper and wider gaps (36) are formed between protruding water chambers (14) compared to the gaps between chambers without such protrusions. The structure which can catch and pull the textile items (T) moving up with the drum (10) and falling back into the drum, will thus perform the pulling function even more strongly.

[0031] In washing machines having a drum (10) with three or four lifting ribs (32) arranged on a perforated drum shell (13), the items are shared and moved by such protrusions. Figure 1 sequentially shows a schematic representation of the items being moved upward by four lifting ribs (32) arranged on a drum (10), during rotation of the drum (10) and the items falling down in the drum. Each lifting rib (32) lifts a group of textile items (T) in front of it as a block and drops it also as a block onto the surface of the drum (10). Logically, the higher the number of lifting ribs (32) in a drum (10), the greater the number of blocks into which the textile items (T) will be separated and the amount of items in each block will decrease proportionally. As the number of blocks increases, the total outer surface area of the blocks will increase proportionally. When the number of lifting ribs (32) is increased, naturally they need to be reduced in size. The water chambers (14) with protrusions arranged so as to cover the cylindrical surface of the drum (10) as depicted in Figure 2, also allow such a drum (10) structure. In a drum (10) having protruding water chambers (14) arranged side by side on the surface of the drum (10), the textile items (T) are spread over the protrusions and lifted upward, then drop separately on the surface of the drum (10).

[0032] The gaps (36) between the protruding chambers have a very important function which increases treatment efficiency. When the water chambers (14) which transfer the washing water from outside of the drum (12) into the drum (10), are passing through the bottom of the tub (11), they are filled with water under dynamic pressure entering through the water inlet opening (15) which opens to the rotation direction of the drum (10). When water discharge from the water chamber (14) is enabled through the holes (18) or slits (19) opening into the gaps (36) between the projections, water under pressure enters the water chamber (14) on one side, exits through the holes (18) or slits (19) on the other side and fills the gaps (36) between the chambers. The water which has entered the drum (10) is thus moved upward as it is trapped within the gaps (36) between the protruding chambers, by the textile items (T) covering the protrusions (34). In this way, since both the gap (36) between the water chambers (14) and the water volumes (17) in the water chambers (14) are filled with waterwhen the water chambers (14) pass through the water, the amount of water transferred into the drum (10) will increase.

[0033] At the point where the gravitational force overcomes the centrifugal force generated by the rotational speed ofthe drum (10), the treatment water moved upward together with the textile items (T) flows downward in the drum (10). When the drum (10) rotates clockwise, the textile material (T) detaching from the drum (10) and falling down starts at 10 o'clock position and is completed at 11 o'clock position , and when the drum (10) rotates counterclockwise, it starts at 2 o'clock position and is completed at 1 o'clock position. The first items to reach the drum (10) surface are caught by the protrusions (34) arranged on the surface of the drum (10) and pulled strongly in the drum's (10) direction of rotation, which neutralizes the surface tension force of the water and enables separating these items from the other textile items (T). Meanwhile, since the water carried upwards in the gap (36) between the water chambers (14) flows between the textile items (T), it helps the protrusions (34) in separating the textile items. When the water flowing with the textile items (T) reaches the drum (10), that is, the protrusions, when the items are being pulled individually, they are already in the treatment water with which they should interact. This flow, pulling, separating continues as long as the drum (10) rotates. All these actions and movements which prevent textile items (T) from adhering to each other under the influence of water surface tension force, allow the textile items (T) to effectively come into contact with treatment water comprising chemicals or dyes. For practical application of the system to industrial washing machines, it would be favorable to produce the protruding water chambers (14) by way of plastic injection and using plastic materials which are durable against water, orto manufacture them from metal materials using techniques such as casting and injection. However, these parts placed on the drum (10) surface will need to be replaced or renewed for various reasons. Since industrial machines must work continuously so as not to disrupt production, practical dismantling and assembly of the water chambers (14) to the drum (10) is of utmost importance for applicability of the invention. To that end, the water chambers (14) consisting of two parts can be configured to be mounted in a locking manner to chamber slots (37) consisting specially shaped cutouts on the drum shell (13). For this, as shown in Figure 12, locking tabs (38) formed on the upper part (25) of the water chamber (14) are passed through the tab holes (39) disposed on the lower part (24) of the water chamber (14) and through the tab apertures (41) on the drum shell (13), and inserted into the chamber slot (37), and upon being pushed forwards, the locking tabs (38) are engaged with the locking protrusions (40) on the drum shell, locking the water chamber to the drum shell (13). To achieve this, first the lower part (24) and the upper part (25) are joined. They are fitted onto the drum shell through the tab apertures (41) on the drum shell (13), through which the locking tabs (38) can pass. Locking to the drum shell (13)is achieved by pushing the water chamber (14) forward up to a length of the locking tab (38), to the region where the locking protrusions (40) are located which are shaped to block passage of the locking tabs (38). When the operation is carried out on the other water chambers (14) in the same sequence as shown in Figures 10 and 11 , the water chambers (14) are joined and locked to each other and to the drum shell (13).

[0034] In order to ensure the highest possible level of water and chemical savings by drawing a significant amount of water present in the tub (11) into the drum (10) without requiring a pump, while ensuring that the items have the highest level of contact with the water required for treatment, the most important features of the invention are as follows: water enters the water chamber (14) through the water inlet opening (15) with dynamic pressure when the water chamber (14) passes through the water in the bottom of the tub (11); the water which has entered the water chamber (14) exits through the slots (19) located opposite the water inlet opening (15), and enters into the gaps (36) between the water chambers (14); and the textile items (T) being treated cover the gaps (36) between the protruding (34) water chambers (14) and trap the water coming out of the water chamber (14) herein, enabling the water chambers (14) to carry the washing water upwards together with the textile items (T). LIST OF REFERENCE SIGNS:

[0035] 10 Drum 27 Locking slot

[0036] 11 Tub 28 Locking member

[0037] 12 Outside of the drum 29 Drain hole

[0038] 13 Drum shell 30 Corrugated recess

[0039] 14 Water chamber 31 Corrugated protrusion

[0040] 15 Water inlet opening 32 Lifting rib

[0041] 16 Water region 33 Corrugated structure

[0042] 17 Water volume 34 Protrusion

[0043] 18 Holes 35 Trough

[0044] 19 Slots 36 Gap

[0045] 9nChamber opening in clockwise „

[0046] direction Chamber slot

[0047] 91Chamber opening in counterclockwise __

[0048] direction Locking tab

[0049] 22 Closed water chamber 39 Tab hole

[0050] 23 Combined water chambers 40 Locking protrusion

[0051] 24 Lower part 41 Tab aperture

[0052] 25 Upper part T Textile items

[0053] 26 Locking frame

Claims

AMENDED CLAIMSreceived by the International Bureau on 18 May 2026 (18.05.2026)1) An industrial washing machine having a front-loading cylindrical drum (10) which rotates in a tub (11) by means of a bearing system, configured to apply wet or dry, physical or chemical washing, stonewashing or parts dyeing treatment to textile products, characterized by;water chambers (14) fixedly placed in the chamber slots (37) on the cylindrical drum shell (13) such that a part of them is disposed outside the drum (12) and a part of them inside the drum (10), in order to reduce the water present in the tub (11) by transferring a portion of the water from outside of the drum (12) into the drum (10) during rotation of the drum (10), so as to increase the water required for treatment in the drum (10) and thereby save water,a water inlet opening (15) provided on said water chambers (14) in the part disposed outside the drum (12) and in the rotation direction of the drum (10), so as to scoop the washing water when passing through the water region (16) located at the bottom of the tub (11) and receive the water into the water chamber (14),water outlet openings in the form of holes (18) or slits (19) provided on said water chambers (14) on the part disposed inside the drum (10),wherein said water chambers (14) are configured such that the water entering the water chamber (14) under dynamic pressure generated by rotational movement, during the chamber passing through the water region (16) located at the bottom of the tub (11), is discharged into the drum (10) through the water outlet openings in the form of holes (18) or slits (19),wherein said water chambers (14) are configured such that the water scooped during passing through the water region (16) located at the bottom of the tub (11) and entering the water chamber (14) under dynamic pressure generated by rotational movement, is discharged into the drum (10) through the holes (18) or slits (19) arranged opposite the water inlet opening (15),wherein the water inlet holes (18) or slits (19) on the water chamber (14) opening into the drum (10) are configured to have a larger cross-sectional area than that of the drain holes (29) formed on the drum shell (13) or on the plastic chambers disposed on the surface of the drum (10) so that the water intake flow rate into the drum is greater than the discharge flow rate from the drum in order to reduce the amount of treatment water outside the drum and increase it within the drum,wherein the water chambers (14) are configured so as to allow to flow and drain the water inside the water volume (17) of the water chambers (14) into the drum (10), upon reaching a position high enough for the water to come out of the holes (18) of the waterchambers (14) coming out of the water region (16) and moving upward inside the tub (11) as the drum (10) continues to rotate, andsaid water chambers (14) being configured to be interlockingly connected to one another so as to provide rows of water chambers (14) arranged side by side along the cylindrical drum shell (13).

2. Machine according to claim 1 , characterized in that, the water chamber (14) surface on the parts provided inside the drum (10) comprises protrusions (34).

3. Machine according to claim 2, characterized by the troughs (35) between the protrusions (34) provided on said water chambers (14).

4. Machine according to any one of the preceding claims, characterized in that, the water chambers (14) comprise two separate parts, a lower part (24) and an upper part (25).

5. Machine according to claim 4, characterized in that, said water chamber (14) is configured such that the locking tabs (38) formed on the upper part (25) located inside the drum (10) are passed through the tab holes (39) on the lower part (24) and through the tab apertures (41) on the drum shell (13) and upon the water chamber (14) being pushed forwards, the locking tabs (38) are engaged with the locking protrusions (40) on the drum shell (13) for locking the water chamber to the drum shell (13).

6. Machine according to claim 3, characterized in that, said water chambers (14) are configured as a closed water chamber (22) consisting entirely of one piece.

7. Machine according to any one of the preceding claims, characterized in that, the water chambers (14) are configured so as to have gaps (36) in between and to be arranged side by side, for enabling the water which, during rotation of the drum (10), has entered the water chambers (14) from the tub (11) under dynamic pressure and has been discharged into the drum (10), to be carried upward with and inside the drum (10).

8. Machine according to any one of the preceding claims, characterized in that, said closed water chambers (22) are placed side by side but separately on the drum shell (13).

9. Machine according to any one of the preceding claims, characterized in that, the water chambers (14) are so placed on the drum shell (13) to form rows of interconnected water chambers (14) consisting of combined water chambers (23) with shared water volumes (17).

10. Machine according to claim 9, characterized in that, the water chambers (14) are provided with a locking frame (26) on one side thereof and a locking slot (27) on the other side to which the protruding male frame can be locked, to enable said waterchambers (14) to be locked to each other to form a combined water chamber (23) having a shared water volume (17).

11. Machine according to claim 10, characterized in that the water chamber (14) at the end of a row of water chambers (14) comprises a locking piece (28) mounted on the drum shell (13) for locking the exposed locking frame (26), in order to prevent the removing and ensure the fixation to the drum shell (13) of said water chambers (14) which are pushed forward to lock into the locking frame (26) and become interlocked with each other and with the drum shell (13), forming a combined water chamber (23) having a shared volume.

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