CN111748961B - Washing drum for washing machine and washing machine equipped with the same - Google Patents
Washing drum for washing machine and washing machine equipped with the same Download PDFInfo
- Publication number
- CN111748961B CN111748961B CN202010213586.5A CN202010213586A CN111748961B CN 111748961 B CN111748961 B CN 111748961B CN 202010213586 A CN202010213586 A CN 202010213586A CN 111748961 B CN111748961 B CN 111748961B
- Authority
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- China
- Prior art keywords
- washing drum
- washing
- tubular body
- rotation axis
- drum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000005406 washing Methods 0.000 title claims abstract description 99
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 230000000694 effects Effects 0.000 description 5
- 230000007423 decrease Effects 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000010412 laundry washing Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/02—Rotary receptacles, e.g. drums
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/02—Rotary receptacles, e.g. drums
- D06F37/04—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a horizontal or inclined axis
- D06F37/06—Ribs, lifters, or rubbing means forming part of the receptacle
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F21/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement
- D06F21/02—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement about a horizontal axis
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F25/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and having further drying means, e.g. using hot air
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/02—Rotary receptacles, e.g. drums
- D06F37/04—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a horizontal or inclined axis
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
Abstract
The invention relates to a washing drum (1) adapted to be rotatably mounted in a washing machine, in which laundry to be washed can be placed. The washing drum (1) comprises a tubular body wall (10; 110; 210) apt to rotate about a rotation axis (R), and the tubular body wall (10; 110; 210) comprises at least one projection (20; 20') protruding from the tubular body wall (10; 110; 210) towards the rotation axis (R). The contour of the bulge (20; 20') at the tubular body wall (10; 110; 210) has a square-round shape, wherein the reference axis (X) of the square-round contour is inclined with respect to the rotation axis (R).
Description
Technical Field
The present invention relates to the field of laundry washing technology.
In particular, the present invention relates to a washing drum adapted to be rotatably mounted in a washing machine.
Background
The use of washing machines is very widespread today, including "simple" washing machines (i.e. washing machines that can only wash and rinse laundry) and laundry dryers (i.e. washing machines that can also dry laundry).
In this specification, the term "washing machine" will refer to both a simple washing machine and a washer-dryer.
Washing machines generally comprise a casing or cabinet provided with a tub which houses a washing drum in which the laundry is placed. The loading/unloading door ensures access to the washing drum.
A washing drum of the known type generally comprises a substantially cylindrical wall closed at one end by a substantially flat rear wall and having an opening closed at its other end by said loading/unloading door.
The cylindrical wall is typically provided with perforations/holes which allow liquid to flow therethrough.
The holes are generally and preferably uniformly distributed on the wall of the drum. Furthermore, the cylindrical wall is typically provided with a projection.
According to known techniques, the protrusions and holes are provided in order to improve the performance of the washing process.
During washing, particularly when the washing drum rotates, laundry may hit and/or adhere to the inner surface of the drum wall, and moisture contained in the laundry may be discharged outward through the holes by means of centrifugal force to spin-dry the laundry.
The shape of the protrusions may affect the handling of the laundry due to the interaction with the laundry.
It is an object of the present invention to optimize the shape of the wall of the washing drum to improve the dewatering performance of the laundry.
Another object of the invention is to optimise the shape of the wall of the washing drum to achieve a gentle treatment of the laundry.
Disclosure of Invention
Applicants have found that by providing a washing machine: the washing machine includes a washing tub outside the washing drum, wherein the washing drum includes a plurality of protrusions, and the above object can be achieved by providing the protrusions with a square-circular profile.
Accordingly, a first aspect of the present invention relates to a washing drum adapted to be rotatably mounted in a washing machine, in which washing drum laundry to be washed can be placed, the washing drum comprising a tubular body wall susceptible to rotation about a rotation axis, and the tubular body wall comprising at least one protrusion and at least one aperture protruding from the tubular body wall towards the rotation axis, wherein a contour of the at least one protrusion at the tubular body wall has a square-circular shape, wherein a reference axis of the square-circular contour is inclined with respect to the rotation axis.
The square round shape preferably consists of four rounded corners joined by four slightly rounded sides.
Preferably, the reference axis symmetrically divides the two opposite slightly circular sides.
In a preferred embodiment of the invention, the reference axis of the square-round profile is inclined with respect to the rotation axis to form an angle between 22.5 ° and 67.5 °, preferably an angle equal to 45 °.
Preferably, the at least one projection comprises a side wall extending from the profile and terminating at a bottom wall.
According to a preferred embodiment of the invention, the washing drum comprises a plurality of projections placed side by side, two adjacent projections defining a channel therebetween.
In a preferred embodiment of the invention, the at least one aperture is realized in the channel.
In a further preferred embodiment of the invention, the at least one aperture is realized in the side wall and/or the bottom wall.
Preferably, the washing drum comprises a plurality of holes.
In a preferred embodiment of the invention, holes are realized in the channels.
In another preferred embodiment of the invention, the holes are realized in the side walls and/or the bottom wall.
According to a preferred embodiment of the invention, the side walls and/or the bottom wall are circular in shape.
In a preferred embodiment of the invention, the washing drum comprises a plurality of projections arranged in rows along the main axis.
In another preferred embodiment of the invention, the washing drum comprises one or more sets of projections comprising one or more rows of projections aligned along the main axis.
Preferably, two of the groups are separated by a smooth region.
Preferably, the smooth region may be considered as a channel having a width preferably equal to or greater than the width of the row of projections.
According to a preferred embodiment of the invention, the main axis is parallel to the rotation axis.
According to another preferred embodiment of the invention, the main axis is inclined with respect to the rotation axis.
In a preferred embodiment of the invention, the height of the side walls is constant.
In another preferred embodiment of the invention, the height of the side walls is varied. Preferably, the height of the side walls decreases continuously.
In a preferred embodiment of the invention, the bottom wall is parallel to the tubular body wall.
In another preferred embodiment of the invention, the bottom wall is not parallel to the tubular body wall.
Preferably, the bottom wall is inclined with respect to the tubular body wall.
In another aspect, the invention relates to a washing machine comprising a washing drum external to the washing drum, wherein the washing drum is implemented as described above.
Drawings
Other features and advantages of the present invention will be emphasized in more detail in the detailed description of some preferred embodiments of the invention, with reference to the accompanying drawings. In the drawings, corresponding features and/or components are identified by the same reference numerals. Specifically:
fig. 1 shows a perspective view of a washing drum according to the present invention suitable for use in a washing machine;
FIG. 2 shows elements of the washing drum of FIG. 1 isolated from the rest of the drum;
FIG. 3 is an enlarged view of a detail of the washing drum shown in FIG. 1;
fig. 4 shows the geometry for implementing a washing drum according to the invention;
fig. 5 shows a plan view of a detail of fig. 3;
FIG. 6 is a VI along FIG. 2 o -VI o A cross-sectional view of a wire;
FIG. 7 is VII along FIG. 2 o -VII o A cross-sectional view of a wire;
FIG. 8 is VIII along FIG. 5 o -VIII o A cross-sectional view of a wire;
FIG. 8A is another preferred embodiment of FIG. 8;
fig. 9 shows a plan view of the drum part shown in fig. 3 as seen from a front view point V shown in fig. 3 according to a second preferred embodiment of the present invention;
fig. 10 and 11 illustrate the washing drum of fig. 2 according to further preferred embodiments of the present invention.
Detailed Description
As described below, the present invention has proven to be particularly advantageous when applied to a washing machine. In any case, it should be emphasized that the present invention is not limited to a washing machine. In contrast, the present invention can be conveniently applied to a washing and drying machine (i.e., a washing machine that can also dry laundry).
Referring to fig. 1, there is shown a preferred embodiment of a washing drum 1 according to the present invention, which is adapted to be rotatably mounted in a washing machine.
As can be better seen in fig. 2, the washing drum 1 preferably comprises a tubular body wall 10 apt to rotate about a rotation axis R. The tubular body wall 10 is preferably cylindrical. In different embodiments, the tubular body wall may have different shapes, for example, the tubular body wall may be frustoconical and/or circular in shape.
The tubular body wall 10 preferably comprises a rear end 12 closed by the rear wall 12 and a front end 14, the front end 14 having an opening 16 for loading/unloading laundry and preferably being aligned with a loading/unloading door of the washing machine (not shown). The tubular body wall 10 is preferably made of a metallic material, preferably stainless steel.
The tubular body wall 10 comprises a protrusion 20 protruding from the tubular body wall 10 towards the rotation axis R.
Preferably, the tubular body wall 10 is metallic and the projections 20 are obtained by punching the tubular body wall 10.
According to one aspect of the invention, the profile 30 of the protrusion 20 at the tubular body wall 10 has the shape of a square circle (square).
Fig. 4 shows a square-round shape in a cartesian coordinate system of x and y. The square and round shape is represented by equation (x-a) 4 +(y-b) 4 ＝r 4 And (3) limiting.
The square round shape shows approximately four rounded corners K1K 4, the four rounded corners K1K 4 being joined by four slightly rounded sides S1S 4.
The square-round shape is symmetrical and shows two symmetry lines coinciding with said axes x and y. In the following, the first symmetry line X is indicated as square-circular reference axis X. It has to be noted that, due to the symmetry of the square circle, the reference axis used in the present invention may also indicate the second symmetry line y.
In other words, the reference axis X symmetrically divides the two opposite slightly circular sides S2, S4.
It has to be noted that in practice the square-round shape may be substantially symmetrical rather than completely symmetrical, in particular due to the deformations caused by the stamping process.
The projection 20 preferably includes a side wall 32 extending from the profile 30 and terminating at a bottom wall 34.
The side walls 32 and bottom wall 34 preferably include smooth surfaces that advantageously engage therebetween without sharp edges.
The side walls 32 and bottom wall 34 preferably include rounded surfaces having a suitable radius of curvature.
The rounded wall is advantageous in providing a gentle treatment to the garment.
According to one aspect of the invention, the projections 20 are suitably oriented at the tubular body wall 10 such that the reference axis X of the square-circular profile 30 is inclined with respect to the rotation axis R, as shown in fig. 5.
Fig. 5 shows the rotation axis R and the preferred directions of rotation C1, C2 of the washing drum 1.
As is known, in fact, during a washing cycle, the washing drum 1 preferably rotates around the rotation axis R in a clockwise direction C1 and a counter-clockwise direction C2, so as to spin-dry the laundry placed therein.
The clockwise direction C1 and the counterclockwise direction C2 are also shown in fig. 1 and 2.
According to one aspect of the invention, the reference axis X of the square-round profile 30 is inclined with respect to the rotation axis R of the washing drum 1 to form an angle a.
In a preferred embodiment of the invention, as shown in the figures, angle a is equal to 45 °. Preferably, the angle is comprised between 22.5o and 67.5 o.
Preferably, the tubular body wall 10 includes a plurality of projections 20 positioned side by side to define a desired pattern.
As shown in fig. 2, the projections 20 are preferably defined and arranged in an inclined row-column matrix substantially throughout the tubular body wall 10.
Two adjacent lugs 20 preferably define a respective channel 50 therebetween. The channel 50 is defined by the side walls 32 of two adjacent lugs 20.
Thus, each channel 50 is preferably aligned in a direction inclined with respect to the rotation axis R.
Fig. 10 shows a first different pattern realized by the following projections 20: the projections 20 are arranged in oblique rows-columns spaced apart from each other on the tubular body wall 110 and are displaced in groups G.
The projections 20 are preferably arranged in rows along the main axis Y. Preferably, the main axis Y is parallel to the rotation axis R.
A smooth area a is preferably defined between the sets G of projections 20. Each region a may also be considered a large channel, preferably having a width equal to or greater than the corresponding row of projections, preferably aligned along the rotation axis R.
Fig. 11 shows a second, different pattern, which is achieved by protrusions 20 being displaced on the tubular body wall 210 in oblique rows H spaced apart from each other.
The projections 20 are preferably arranged in rows along the main axis Y'. Preferably, the main axis Y' is inclined with respect to the rotation axis R.
A smooth area a' is preferably defined between the sets H of projections 20. Each region a' may also be considered as a channel, preferably having a width equal to or greater than the corresponding row of projections, preferably aligned along a direction inclined with respect to the rotation axis R.
The tubular body wall 10 preferably includes distributed apertures 70. The holes 70 are preferably obtained by punching the tubular body wall 10.
The holes 70 help to drain water from the inside of the washing drum 4 to the outside, to spin-dry the laundry placed therein.
According to a preferred embodiment of the present invention, an aperture 70 is implemented in the channel 50, as best seen in fig. 3 and 5. Here, the holes 70 are preferably implemented only in the channels 50.
In different embodiments, the apertures 70 are distributed differently over the tubular body wall. For example, as shown in fig. 9, the aperture 70 in the tubular body wall 310 is additionally or alternatively implemented at the side wall 32 and/or bottom wall 34 of the projection 20.
According to an advantageous aspect of the present invention, as described above, the protrusion 20 enhances the water loss when the washing drum 1 rotates in the clockwise direction C1 or the counterclockwise direction C2 due to its shape and orientation.
Referring to fig. 5, when the washing drum 1 rotates in the clockwise direction C1, water collides with the first/upper corner K1 and the lateral sides S1, S2 of the projection 20. The effect is to deflect the water from the center toward the sides of the projections 20 along the channels 50 between adjacent projections 20, thereby avoiding the generation of turbulence and/or accumulation of water and enhancing the delivery of water to the discharge holes 70.
Similarly, when the washing drum 1 rotates in the counterclockwise direction C2, water collides against the third/lower corner K3 and the lateral sides S3, S4 of the projection 20. The effect is to deflect the water from the centre towards the sides of the projections 20 along the channels 50 between adjacent projections 20, thereby avoiding turbulence and/or accumulation of water and enhancing the delivery of water to the discharge orifice 70.
According to another advantageous aspect of the present invention, as described above, the protrusion 20 provides a gentle treatment of laundry when the washing drum 1 rotates in the clockwise direction C1 or the counterclockwise direction C2 due to its shape and orientation.
Referring to fig. 5 and 8, when the washing drum 1 rotates in the clockwise direction C1, laundry collides with the first/upper corner K1 and the sides S1, S2 of the projection 20. The effect of this is that the clothing does not adhere to the inner wall of the tubular body wall 10, but rather the clothing is gently separated from the inner wall.
Similarly, when the washing drum 1 rotates in the counterclockwise direction C2, laundry collides against the third/lower corner K3 and the sides S3, S4 of the projection 20. The effect of this is that the clothing does not adhere to the inner wall of the tubular body wall 10, but rather the clothing is gently separated from the inner wall.
In a preferred embodiment of the present invention, as best seen in fig. 8, the height D of the side walls is preferably constant or substantially constant, and the bottom wall 34 is preferably parallel or substantially parallel to the tubular body wall 10.
In another preferred embodiment of the invention, the height of the side walls varies and the bottom wall is preferably not parallel to the tubular body wall.
For example, as shown in the embodiment of fig. 8A, the height of the side wall 32' continuously decreases, and the bottom wall 34' of the projection 20' is inclined with respect to the tubular body wall 10.
Preferably, the height of the sidewall 32' decreases continuously from the first corner K1 to the third corner K3 (as can be deduced by comparing distances D1 and D2 shown in fig. 8A). Accordingly, the bottom wall 34 'of the projection 20' is preferably inclined from the first corner K1 to the third corner K3.
The effect of this shape is that laundry is differently separated when the washing drum 1 rotates in the clockwise direction C1 or the counterclockwise direction C2.
Advantageously, the mechanical treatment of the laundry differs between a clockwise rotation and a counter-clockwise rotation of the washing drum 1.
It has therefore been shown that the invention allows achieving all the set purposes. In particular, it is possible to provide a washing drum that increases the dehydrating performance of laundry during a washing cycle, compared to known washing machines.
Although the present invention has been described with reference to the particular embodiments shown in the drawings, it should be noted that the present invention is not limited to the particular embodiments shown and described herein; in contrast, other variations of the embodiments described herein fall within the scope of the invention as defined by the claims.
Claims (16)
1. Washing drum (1), the washing drum (1) being adapted to be rotatably mounted in a washing machine, laundry to be washed being able to be placed in the washing drum (1), the washing drum (1) comprising a tubular body wall (10; 110; 210) apt to rotate about a rotation axis (R), and the tubular body wall (10; 110; 210) comprising at least one projection (20; 20 ') and at least one hole (70) protruding from the tubular body wall (10; 110; 210) towards the rotation axis (R), characterized in that the profile of the at least one projection (20; 20') at the tubular body wall (10; 110; 210) has the formula (x-a) 4 +(y-b) 4 ＝r 4 -a defined square-round geometry, wherein a reference axis (X) of the contour of the square-round shape is inclined with respect to the rotation axis (R).
2. The washing drum (1) according to claim 1, characterized in that the reference axis (X) of the square-round profile is inclined with respect to the rotation axis (R) to form an angle between 22.5 ° and 67.5 °.
3. The washing drum (1) according to claim 1 or 2, characterized in that the at least one projection (20; 20 ') comprises a side wall (32; 32 ') extending from the profile and ending at a bottom wall (34; 34 ').
4. The washing drum (1) according to claim 1 or 2, characterized in that the washing drum (1) comprises a plurality of said at least one projection (20; 20 ') arranged side by side, two adjacent projections (20; 20 ') defining a channel (50; a ') therebetween.
5. The washing drum (1) as claimed in claim 4, characterized in that the at least one hole (70) is realized in the channel (50).
6. A washing drum (1) as claimed in claim 3, characterized in that the at least one aperture (70) is realized in the side wall (32; 32 ') and/or the bottom wall (34; 34').
7. A washing drum (1) as claimed in claim 3, characterized in that the side walls (32; 32 ') and/or the bottom wall (34; 34') are circular in shape.
8. The washing drum (1) according to claim 1 or 2, characterized in that the washing drum (1) comprises a plurality of said at least one projection (20; 20 '), a plurality of said projections (20; 20 ') being arranged in rows along a main axis (Y; Y ').
9. The washing drum (1) according to claim 1 or 2, characterized in that the washing drum (1) comprises one or more groups (G; H) of projections (20; 20 '), said one or more groups (G; H) comprising one or more rows of projections (20; 20 ') aligned along a main axis (Y; Y ').
10. The washing drum (1) according to claim 9, characterized in that two groups (G; H) of the one or more groups (G; H) are separated by a smooth area (a; a').
11. Washing drum (1) according to claim 8, characterized in that the main axis (Y) is parallel to the rotation axis (R).
12. Washing drum (1) according to claim 8, characterized in that the main axis (Y') is inclined with respect to the rotation axis (R).
13. A washing drum (1) as claimed in claim 3, characterized in that the height (D) of the side walls (32) is constant.
14. A washing drum (1) as claimed in claim 3, characterized in that the height of the side walls (32') is varied.
15. A washing drum (1) according to claim 2, characterized in that the reference axis (X) of the contour of a square circle is inclined with respect to the rotation axis (R) to form an angle equal to 45 °.
16. A washing machine comprising a washing tub located outside a washing drum (1), characterized in that the washing drum (1) is realized according to any one of claims 1 to 15.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP19165272.6A EP3715522B1 (en) | 2019-03-26 | 2019-03-26 | Washing drum for a laundry washing machine and laundry washing machine equipped with such drum |
| EP19165272.6 | 2019-03-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111748961A CN111748961A (en) | 2020-10-09 |
| CN111748961B true CN111748961B (en) | 2024-01-19 |
Family
ID=65991653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010213586.5A Active CN111748961B (en) | 2019-03-26 | 2020-03-24 | Washing drum for washing machine and washing machine equipped with the same |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20200308752A1 (en) |
| EP (1) | EP3715522B1 (en) |
| CN (1) | CN111748961B (en) |
| AU (1) | AU2020201474A1 (en) |
| PL (1) | PL3715522T3 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102021200987A1 (en) * | 2021-02-03 | 2022-08-04 | BSH Hausgeräte GmbH | Method for producing a laundry drum with a precise positioning of an embossed structure and flood holes relative to one another, and laundry drum |
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| JPH0318398A (en) * | 1989-06-16 | 1991-01-25 | Mitsubishi Heavy Ind Ltd | Drum type washing machine |
| US5419164A (en) * | 1992-12-07 | 1995-05-30 | Durazzani; Pierro | Plastic tubs for washing machines |
| EP0768422A2 (en) * | 1995-10-13 | 1997-04-16 | ELECTROLUX ZANUSSI ELETTRODOMESTICI S.p.A. | A laundry washer with improved dynamic equilibration system |
| DE19860529A1 (en) * | 1998-12-30 | 2000-07-06 | Boewe Garment Care Systems Gmb | Cleaning, post-treatment and drying of textiles, leather and furs uses cleaning machine with drum with asymmetrical ribs |
| EP1028189A2 (en) * | 1999-02-10 | 2000-08-16 | BSH Bosch und Siemens Hausgeräte GmbH | Laundry washing machine with a drum having a structured surface |
| KR20030034503A (en) * | 2001-10-23 | 2003-05-09 | 엘지전자 주식회사 | lifter in drum-type washing machine |
| CN103764893A (en) * | 2011-09-02 | 2014-04-30 | 阿塞里克股份有限公司 | Laundry washing or laundry washing-drying machine drum |
| CN103814166A (en) * | 2011-09-20 | 2014-05-21 | Bsh博世和西门子家用电器有限公司 | Laundry drum having drum profile for optimized spin-drying action |
| CN104131438A (en) * | 2013-04-30 | 2014-11-05 | Lg电子株式会社 | Washing machine |
| CN203977154U (en) * | 2014-06-20 | 2014-12-03 | 无锡小天鹅股份有限公司 | Washing machine and inner core thereof |
| EP2832916A1 (en) * | 2013-07-31 | 2015-02-04 | Electrolux Appliances Aktiebolag | Laundry treating machine including a rotatable drum |
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| WO2016180371A1 (en) * | 2015-05-13 | 2016-11-17 | 海尔亚洲株式会社 | Washing machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1925704B1 (en) * | 2006-11-24 | 2011-03-09 | Whirlpool Corporation | Drum for a washing machine and washing machine provided with such drum |
| KR20100030064A (en) * | 2008-09-09 | 2010-03-18 | 삼성전자주식회사 | Drum type washing machine |
| DE102012204560A1 (en) * | 2012-03-22 | 2013-09-26 | BSH Bosch und Siemens Hausgeräte GmbH | Laundry drum with a structure pattern and laundry treatment machine with such a laundry drum |
| CN104420124B (en) * | 2013-08-29 | 2018-05-22 | 青岛海尔滚筒洗衣机有限公司 | A kind of washing machine inner tub and washing machine |
| CN104947373B (en) * | 2014-03-24 | 2018-12-25 | 青岛海尔洗衣机有限公司 | A kind of attached block structure of washing machine inner tub |
-
2019
- 2019-03-26 PL PL19165272.6T patent/PL3715522T3/en unknown
- 2019-03-26 EP EP19165272.6A patent/EP3715522B1/en active Active
-
2020
- 2020-02-28 AU AU2020201474A patent/AU2020201474A1/en active Pending
- 2020-03-24 CN CN202010213586.5A patent/CN111748961B/en active Active
- 2020-03-24 US US16/828,299 patent/US20200308752A1/en not_active Abandoned
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0318398A (en) * | 1989-06-16 | 1991-01-25 | Mitsubishi Heavy Ind Ltd | Drum type washing machine |
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Also Published As
| Publication number | Publication date |
|---|---|
| AU2020201474A1 (en) | 2020-10-15 |
| US20200308752A1 (en) | 2020-10-01 |
| EP3715522B1 (en) | 2022-05-11 |
| CN111748961A (en) | 2020-10-09 |
| EP3715522A1 (en) | 2020-09-30 |
| PL3715522T3 (en) | 2022-09-12 |
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