• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a drum rear unit (6) for a drum (4) of a domestic appliance (1) for the treatment of clothes, which is configured to be fixed to a barrel part (5) of the drum (4) to close the drum (4) on its rear side. The rear drum unit (6) comprises at least one plate (8) made of stainless steel. In addition, the rear drum unit (6) comprises at least one reinforcing element (9), wherein the at least one reinforcing element (9) is made of stainless steel. The invention also makes reference to a drum (4) for a domestic appliance (1) and a domestic appliance (1) for the treatment of clothes. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2650227A1
    申请号:ES201630940
    申请日:2016-07-11
    公开日:2018-01-17
    发明作者:Jesus Adrian GASCON LAHOZ；Juan Melantuche Fuente
    申请人:BSH Hausgeraete GmbH；BSH Electrodomesticos Espana SA；
    IPC主号:
    专利说明:

    The invention refers to a rear drum unit for a drum of a household appliance for the treatment of garments. The drum rear unit is configured to be fixed to a barrel part of the drum to close the drum by its rear side, and comprises at least one plate made of stainless steel. Likewise, the invention refers to a drum with a rear drum unit of this type and a domestic appliance.
    Household appliances for treating garments, such as washing machines, need a sturdy structural part on the back of the drum. This resistant structural part transmits the rotational movement provided by a motor of the washing machine and assumes the efforts due to a non-uniform distribution of the load of the clothes inside the drum, in particular, during a spin phase. For this reason, washing machine manufacturers use a drum support as the resistant structural part, for example, in the form of a star with three or more arms.
    In addition, the drum of the washing machines has a rear part that closes the drum on its back side, such that the clothes are kept inside the drum during the washing or drying cycle. In accordance with the prior art, the drum support and the rear part of the drum are joined together in order to resist the rotational movement caused by the motor. Therefore, the drum support and the back of the drum have to withstand and overcome the stresses of the system, in particular when a spin cycle is being carried out during which the drum reaches a high speed per minute, and if the distribution of the laundry during the spin phase is not uniform. Likewise, this effort has to be tolerated during the entire life of the washing machine.
    In accordance with the prior art, the drum supports are produced by injection molding of aluminum on an additional axis that transmits the rotational movement of the motor. Such drum support is then attached to the side.
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    side or back side of the drum using screws or rivets. It is also known from the prior art to manufacture the back of the stainless steel drum after a pressure molding process. However, washing machine producers routinely use these mechanical systems, that is, the back of the drum and the drum support, together during the production of the washing machines.
    Therefore, it is necessary for the manufacturers of washing machines to provide a structural element that increases the resistance of the drum in its rear part and that provides a rear part of the drum to keep the laundry clothes inside the drum. This mechanical system comprising the back of the drum and the drum support has to support the efforts and needs related to a sufficient resistance to carry out spin cycles and wash cycles during the life of the washing machine with different loads of clothes inside of the drum
    However, if the drum support and the rear drum are provided as separate components, the production of a washing machine becomes quite complex.
    Accordingly, the present invention solves the technical problem of providing an improved drum rear unit of the type mentioned at the beginning, a drum with such a drum rear unit, and a household appliance with such a drum.
    This technical problem is solved by a rear drum unit, by a drum, and by a domestic appliance with the characteristics of the respective independent claims. In the dependent claims, advantageous configurations are specified with other convenient developments of the invention.
    The rear drum unit according to the invention is configured to be fixed to a barrel part of a drum of a domestic appliance to close the drum by its rear side. The rear drum unit comprises at least one plate made of stainless steel. In addition, the rear drum unit comprises at least one reinforcing element. The at least one reinforcing element is made of stainless steel. This makes it possible to gather the functions guaranteed by a drum rear and a drum holder into only one part in the form of a drum rear unit. In other words, the components in the form of the back of the drum and the drum support known from the prior art can be cast in a
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    piece that then has the function of the back of the drum and the drum holder at the same time.
    This is made possible since the rear drum unit comprises the reinforcing element made of stainless steel. Thanks to the reinforcing element, the rear drum unit has mechanical properties that are similar to those of the drum holders used in the prior art. In other words, the drum holder is used at the same time as the rear drum. This makes it possible for the drum support to be mounted directly on the barrel part of the drum and that a rear drum part is provided at the same time. Thus, the use of two different components can be avoided. The drum, which is completed by attaching the rear drum unit to the barrel part of the drum, can then rotate, and mechanical stresses can be assumed. Meanwhile, the washing cycles and spin cycles can be carried out with a safe system for the treatment of garments, since the washing clothes are kept inside the drum thanks to the rear drum unit that closes the drum by its back side
    Therefore, the need for two different parts to effect wash cycles, spin cycles, or drying cycles is eliminated. However, the rear drum unit offers the same level of quality for treating garments and the same washing efficiency as a rear drum in accordance with the prior art. An additional component is no longer needed, since, in the method of production of the complete drum, the functions of the rear drum and the drum support are preferably combined into only one piece that ensures the necessary functionality. If the drum holder also fulfills the function of the rear drum, it is possible to reduce the logistic efforts, since the quantity of components is reduced. This also brings advantages thanks to the reduction of efforts required for administration, since fewer references are needed to identify components.
    Preferably, the reinforcing element is made by bending at least one section of the plate. By such bending of the sheet metal material, the mechanical properties of the plate made of stainless steel can be improved to a degree that makes it possible to resist the stresses that are present when the drum is rotated. In other words, the bending of the plate made of stainless steel provides the reinforced structure. Such reinforcing elements may be, for example, concentric ribs, which are formed in the plate, and / or multiple arms that are formed in the plate and which extend in the radial direction. It has been shown that these radial arms or this crashed profile, as well as the concentric nerves, are particularly reliable in providing the desired mechanical strength to the rear drum unit.
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    Alternatively or additionally, the reinforcing element may be configured as at least one separate element that is attached to the plate. To connect the separated element with the plate, screws, rivets, torx elements and, in particular, welding can be used. Especially by welding it can be ensured that the drum support provided by the separate element and the back of the drum in the form of an iron are securely connected to each other and that they become only one piece. It has been shown that, in particular, laser welding or plasma welding are effective by joining the at least one plate and the at least one element separated very precisely and quickly.
    By providing the reinforcement element as a separate element, it is possible to design different reinforcement geometries, which make the rear drum unit particularly strong, depending on the mechanical requirements.
    The separate element can be configured as a star with multiple arms that are attached to the plate. This gives the drum rear unit particularly good or solid mechanical properties, since the star is made of stainless steel or stainless steel sheet.
    Alternatively or additionally, the separate element may be configured as a second plate, which may be attached to the plate in a marginal region. As an example, two circular plates can be joined together in the marginal region to result in the subsequent drum unit. Said drum rear unit also has a greater structural resistance thanks to the use of stainless steel for the second plate.
    Preferably, a tube element is disposed between the plate and the second plate. The tube element is configured to accommodate a final section of a shaft to rotate the drum. Said tube element further strengthens the rear drum unit.
    The tube element may have a flange, where the flange is attached to one of the plates. Such an arrangement makes possible a particularly secure fixation of the shaft to at least one plate of the rear drum unit.
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    Alternatively or additionally, a third plate may be arranged between the plate and the second plate. The third plate can be attached to the other plates by welding. This multilayer structure of the rear drum unit increases its mechanical strength.
    Preferably, the drum rear unit comprises a sleeve element that is configured to accommodate the shaft for rotating the drum. The sleeve element provides a seat for a sealing element. The sealing element, which may be configured as a shaft seal, may have flanges that are in contact with the sleeve element. Such sealing element ensures that no water can reach the bearings that support the axis of the rear drum unit.
    The sleeve element can be formed in one piece with the iron. This makes the rear drum unit particularly simple.
    Alternatively, the sleeve element may be attached to the plate and / or attached to the reinforcement element by welding. The sleeve element may have, for example, a flange section that is attached to the plate and / or to the reinforcing element. The sleeve element being provided as a part that is separated from the plate and then attached to the plate and / or the reinforcing element, the sleeve element may have a particularly suitable design to accommodate the shaft. This provides greater structural strength to the rear drum unit, particularly if the shaft is fixed to the sleeve member in a torsionally resistant manner.
    Preferably, the plate has a depression or emptying to accommodate a final section of the shaft to rotate the drum. This makes possible a particularly secure fixation of the shaft to the plate. In particular if the plate has a recess, a concave element with flange may be disposed within the recess, where the final section of the shaft is housed within the concave element. This reinforces the structure to a greater extent.
    The drum according to the invention for a domestic apparatus for treating garments comprises a rear drum unit according to the invention. Here, the rear drum unit is fixed to a barrel part of the drum.
    The domestic apparatus for treating garments according to the invention has a drum according to the invention. Said household appliance for the treatment of garments can be configured, for example, as a washing machine and / or as a clothes dryer.
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    The preferred advantages and embodiments described with respect to the rear drum unit according to the invention are equally applicable to the drum according to the invention and to the domestic appliance according to the invention.
    The features and combinations of features mentioned above in the description, as well as the features and combinations of features mentioned below in the description of the figures and / or shown alone in the figures are usable not only in the combination indicated in each case, but 10 also in other combinations, without abandoning the scope of the invention. Therefore, it should be understood that those embodiments that are not explicitly shown in the figures or explained, but which can be extracted through combinations of features separate from the exposed embodiments set forth are also understood and disclosed by the invention. . Therefore,
    Those embodiments and combinations of features that do not have all the characteristics of an independent claim originally formulated will also be considered disclosed.
    Other advantages, features and details of the invention can be drawn from the claims, the following description of the preferred embodiments, as well as based on the drawings, in which the elements with analogous functions are accompanied by the same reference symbols . Here, they show:
    Fig. 1 schematically, a household appliance such as a washing machine with a drum comprising a stainless steel drum rear unit and having at least one reinforcing element
    25 made of stainless steel;
    Fig. 2 in a perspective view, the rear drum unit, where the reinforcing element is made by bending a plate made of stainless steel, and where a sleeve element is formed integrally with the stainless steel plate ;
    Fig. 3 in a perspective view and in exploded view, a variant of the rear drum unit, where a separate element that is configured as a star with three arms and made of stainless steel is attached to the plate made of stainless steel;
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    Fig. 4 in a partial sectional view, another variant in which the rear drum unit comprises two stainless steel plates, where the sleeve element is attached to one of the plates and a tube element is disposed between the two plates ;
    Fig. 5 in a partial section view, another variant in which one of the plates has a recess, where a concave element is disposed in the recess and houses a final section of a shaft to rotate the drum;
    Fig. 6 in a perspective view, another variant of a rear drum unit with an iron of the rear drum with a reinforcing geometry and comprising the axis; Y
    Fig. 7 a sectional view of a rear drum unit with a reinforced structure.
    The indications "top", "bottom", "top", "front", "bottom", "ground", "horizontal", "pouring," depth direction "," width direction ", "height direction", and the like, refer to the positions and orientations of a domestic appliance 1 (see Figure 1) in its intended use position with respect to an observer located in front of the domestic appliance 1 and which is looking towards East.
    Figure 1 shows schematically and in a sectional side view a domestic appliance 1 for the treatment of garments that is configured as a washing machine. Alternatively or additionally, the household appliance 1 may be configured as a clothes dryer. Within a frame 2 of the domestic appliance 1 there is a tank 3 containing water and a detergent during a washing cycle of the washing machine. A drum 4 is arranged inside the bowl 3 in a known manner. The drum 4 comprises a barrel part 5. A rear drum unit 6 is fixed to the barrel part 5 to close the drum 4 by its rear side. The rear drum unit 6 comprises an axis 7 that transmits the rotational movement to the drum 4 during operation of the domestic appliance 1. In the schematic representation of the domestic appliance 1 of Figure 1, the motor for driving the shaft 7 is not shown ( for example, by means of a pulley).
    Figure 2 shows a possible variant of the rear drum unit 6. Here, the rear drum unit 6 comprises a plate 8 made of stainless steel and a reinforcing element which, in this variant, is formed as a concentric rib 9 formed in the iron 8. A sleeve element 10, which serves as a sleeve
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    sealant, is formed integrally with or in one piece with the plate 8. This sleeve element 10 houses the shaft 7, which in figure 2 is shown in a separate state. However, during operation of the drum 4, the shaft 7 is fixed to the plate 8 in a torsionally resistant manner. The cylindrical sleeve element 10 itself, which comes out or protrudes from the plate 8, fulfills the function of a sealing sleeve. Also, since the plate 8 comprises the reinforcing element in the form of at least one nelVio 9, the rear drum unit 6 includes the functionality of the drum support and the rear drum.
    The sleeve element 10 is the place where a shaft seal works (not shown). The sleeve element 10 provides a defined surface where the flanges of the shaft seal are in contact with the sleeve element 10 AND guarantee the sealing function. The sealing function prevents water from reaching the bearings (not shown) that support the shaft 7.
    Figure 3 shows a variant of the rear drum unit 6, which also comprises the plate 8 made of stainless steel. However, the reinforcing element is not made integrally with the plate 8, but is configured as a separate star-shaped element 11 with multiple arms 12. As shown in Figure 3, the star 11 may have , for example, three arms 12 extending in the radial direction. The star 11 is made of stainless steel and is attached to the plate 8. As can be seen from the exploded view of Figure 3, the sleeve element 10 is also configured as a separate element in the variant of the rear unit of drum 6 shown in Figure 3. However, the sleeve element 10 is attached to the star 11 and / or to the plate 8, and is also configured to accommodate the shaft 7 of the rear drum unit 6. The components of The rear drum unit 6 shown in Figure 3 can be joined together by welding.
    In the variant of the rear drum unit 6 shown in Figure 3, the sleeve element 10 is configured as a single cylindrical tube. In contrast, Figure 4 shows a variant of the rear drum unit 6 in a sectional view, where the sleeve element 10 has a flange section 13. This flange section 13 is attached to a second plate 14, the which confers the function of the reinforcing element to the rear drum unit 6 shown in Figure 4. The plate 8 and the second plate 14 can be circular and joined together in a marginal region (not shown in Figure 4) of the rear drum unit 6.
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    The shaft 7 passes through the sleeve element 10 Y reaches the inside of a tube element 15, which is arranged between the plate 8 and the second plate 14. This tube element 15 has a flange 16 which is attached to the plate 8 The tube element 15 (optional) serves as another reinforcement for the rear drum unit 6. The final face of the shaft 7 that passes through the tube element 15 rests against the plate 8. The components of the rear unit of Drum 6 shown in Figure 4 may be welded to each other, or be attached to each other in another way.
    Figure 5 shows another variant of the rear drum unit 6, where the second plate 14 made of stainless steel serves as a reinforcing element. Here, the flange section 13 of the sleeve element 10 is again fixed to the second plate
    14. However, the shaft 7 has a stepped region 17 in which the diameter of the shaft 7 increases with respect to the diameter of the section of the shaft 7 that passes through the sleeve member 10. This stepped region 17 provides a final section of the shaft 7. This final section is housed within a concave element 18 which is inserted into a recess or hole of the plate 8. A flange 19 of the concave element 18 is fixed, in particular, welded, ally of the plate 8 which is directed towards the second plate 14. The concave element 18 (optional) also serves as a reinforcement for the rear drum unit 6.
    Figure 6 shows another variant of the rear drum unit 6 comprising the axis 7. Here, the reinforcing element may be a star 20 with multiple arms 21 extending radially from the axis 7. In this possible reinforcing geometry, the star 20 has a total of eight arms 21 that can be made of a piece of stainless steel sheet fixed to the plate 8. Also, this reinforcing geometry can be realized by forming said star 20 (with more or less arms 21) on the plate material 8.
    Figure 7 shows in a sectional view another variant of the rear drum unit 6 with the shaft 7. The shaft 7 passes through the sleeve element 10. Here, the sleeve element 10 can be integrally formed with the plate 8 or as part that is provided separately from plate 8 and then joined to it by welding. In a space between the plate 8 and the second plate 14, a third plate 22 may be arranged. The third plate 22 can also serve as a reinforcing structure.
    In the described variants in which the rear drum unit 6 is made of multiple components, the sealing function guaranteed by the sleeve element 10 is preferably achieved with one of the parts that reinforce the drum support. In such a configuration, the sleeve element 10 not only provides a surface for the sealing function, but also has a structural function.
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    The sleeve element 10 may be formed in one piece with one of the plates 8, 14, 22. However, the drum support made of the stainless steel or stainless steel sheet may also include the sleeve element 10 or sleeve Sealer for shaft 7 through a welding process.
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    Reference symbols
    Domestic appliance
    2 Frame
    3 Cuba
    4 Drum
    5 Barrel part
    6 Rear Drum Unit
    7 Axis
    8 Griddle
    9 Nerve
    10 Sleeve element
    eleven Star
    12 Arm
    13 Flange section
    14 Second plate
    fifteen Tube element
    16 Flange
    17 Staggered region
    18 Concave element
    19 Flange
    twenty Star
    twenty-one Arm
    22 Third iron
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    权利要求:
    Claims (7)
    [1]

    1. Rear drum unit for a drum (4) of a household appliance (1) for the treatment of garments, which is configured to be fixed to a barrel part (5) of the drum (4) to close the drum (4) by its
    5 rear side, where the rear drum unit (6) comprises at least one plate (8) made of stainless steel, characterized in that the rear drum unit (6) comprises at least one reinforcing element (9.1 1, 14 , 20,22), where the at least one reinforcing element (9,1 1, 14,20,22) is made of stainless steel.
    [2]
    2. Rear drum unit according to claim 1, characterized in that the reinforcing element (9, 20) is made by bending at least one section of the plate (8), in particular, by forming concentric ribs in the plate (8) and / or by forming a
    15 star with multiple arms (21) on the plate (8), which extend in the radial direction.
    [3]
    3. Rear drum unit according to claims 1 or 2, characterized
    because the reinforcing element (11, 14, 22) is configured as at least 20 a separate element that is joined to the plate (8) by welding.
    [4]
    4. Rear drum unit according to claim 3, characterized in that the separate element is configured as a star (11) with multiple arms
    (12) attached to the plate (8) and / or as a second plate (14), preferably circular, which is attached to the plate (8) in a marginal region.
    [5]
    5. Rear drum unit according to claim 4, characterized in that a tube element (15) with a flange (16) is disposed between the plate (8) and the second plate (14), wherein the tube element (15) is set to
    30 accommodating a final section of a shaft (7) to rotate the drum (4).
    [6]
    6. Rear drum unit according to claims 4 or 5, characterized in that a third plate (22), which is arranged between the plate (8) and the second plate (14), is attached to the plates (8, 14) by welding.
    [7]
    7. Rear drum unit according to any one of claims 1 to 6, characterized in that the rear drum unit (6) comprises a sleeve element (10) configured to accommodate the shaft (7) for rotating the drum (4), wherein The sleeve element (10) provides a seat for a sealing element.
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    5. Rear drum unit according to claim 7, characterized in that the sleeve element (10) is formed in one piece with the plate (8) or has a flange section (13) attached to the plate (8) and / or is attached to the reinforcing element (14).
    A drum rear unit according to any one of claims 1 to 8, characterized in that the plate (8) has a depression or emptying, provided with a concave element (18) with flange, to accommodate a final section (17) of the shaft (7) to rotate the drum (4).
    A drum for a household appliance (1) for the treatment of garments, wherein the drum (4) comprises a rear drum unit (6) according to any one of claims 1 to 9, which is fixed to a part of barrel
    (5) dellambor (4).
    A household appliance for treating garments with a drum (4) according to claim 10, wherein the domestic appliance (1) is configured as a washing machine and / or as a clothes dryer.
    类似技术:
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    ES2354424T3|2011-03-14|WASHING UNIT FOR A WASHER WITH A PLASTIC WASHING TUBE.
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    ES2282552T3|2007-10-16|MACHINE FOR THE TREATMENT OF LA COLADA.
    ES2882524T3|2021-12-02|Procedure for operating a washing machine
    EP2974644B1|2017-08-30|Dishwasher
    ES2351105T3|2011-01-31|FRONT LOAD DRUM WASHER WITH CLOTHING DEFLECTOR.
    KR20150072735A|2015-06-30|Washing machine
    ES2717426T3|2019-06-21|Procedure of control of a washing machine
    CN101348993B|2011-08-31|Washing machine
    ES2393857T3|2012-12-28|Washer or washer dryer with recirculation
    ES2533529T3|2015-04-10|Front loading domestic washing machine, in particular a washing machine or clothes washer / dryer
    ES2463315R1|2014-07-23|Domestic appliance, especially laundry washing or drying machine
    ES2343975T3|2010-08-13|DOMESTIC WASHER EQUIPPED WITH AN INTEGRATED DRUM CROSSING.
    JP2006095001A|2006-04-13|Dishwasher
    CN103781957A|2014-05-07|Washing machine
    ES2383199T3|2012-06-19|Improved washing machine and similar appliances with rotating drum
    KR20180136084A|2018-12-24|Wall mounted washing machine and rear panel of the same
    KR101637367B1|2016-07-07|Laundry Treating Machine
    KR20070115279A|2007-12-06|Clothes washing machine having balancer
    同族专利:
    公开号 | 公开日
    ES2650227B1|2018-10-31|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    WO2003087459A1|2002-04-10|2003-10-23|Fisher & Paykel Appliances Limited|A laundry appliance|
    US20130118212A1|2011-10-24|2013-05-16|Lg Electronics Inc.|Washing machine to produce three-dimensional motion|CN112193852A|2020-09-08|2021-01-08|朱嘉亨|Chemical barrel pouring device|
    法律状态:
    2018-10-31| FG2A| Definitive protection|Ref document number: 2650227 Country of ref document: ES Kind code of ref document: B1 Effective date: 20181031 |
    优先权:
    申请号 | 申请日 | 专利标题
    ES201630940A|ES2650227B1|2016-07-11|2016-07-11|REAR DRUM UNIT FOR A DRUM OF A DOMESTIC DEVICE FOR THE TREATMENT OF CLOTHING, DRUM, AND DOMESTIC APPARATUS|ES201630940A| ES2650227B1|2016-07-11|2016-07-11|REAR DRUM UNIT FOR A DRUM OF A DOMESTIC DEVICE FOR THE TREATMENT OF CLOTHING, DRUM, AND DOMESTIC APPARATUS|
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