CN112899997A

CN112899997A - Household appliance for treating laundry items having an axially preloaded clamp

Info

Publication number: CN112899997A
Application number: CN202011384915.9A
Authority: CN
Inventors: R·阿利施; R·比蒂高; T·韦伯
Original assignee: BSH Hausgeraete GmbH
Current assignee: BSH Hausgeraete GmbH
Priority date: 2019-12-03
Filing date: 2020-12-01
Publication date: 2021-06-04
Also published as: DE102019218735A1

Abstract

The invention relates to a household appliance (1) for the care of laundry, having a housing (2) in which a laundry drum (3) is rotatably mounted and having at least one annular unbalance compensation device (13, 14) which is arranged on the laundry drum (3) by means of at least one separate retaining element (29) of the household appliance (1), wherein the at least one retaining element (29) is fastened to the unbalance compensation device (13, 14) separately therefrom, wherein the retaining element (29) has a pretensioning clip (45) which, in the final installation state, rests axially pretensioned against a wall (7) of the laundry drum (3) as viewed in the direction of a longitudinal axis (A) of the laundry drum (3).

Description

Household appliance for treating laundry items having an axially preloaded clamp

Technical Field

The invention relates to a household appliance for the care of laundry items, comprising: a housing in which the laundry drum is rotatably supported; and at least one annular unbalance compensation device for compensating unbalance (Unwucht) of the rotating laundry drum caused by the laundry asymmetrically distributed in the laundry drum, the unbalance compensation device being arranged on the laundry drum. The household appliance has at least one holding element, which is independent (separate) from the unbalance compensation device and from the housing and from the laundry drum, by means of which the unbalance compensation device is fixed on the laundry drum.

Background

It is generally known that during the washing process of a washing machine, the laundry is randomly and irregularly distributed in the laundry drum. This causes an unbalance which causes relatively large mechanical vibrations of the laundry drum and thus also a large mechanical load of the entire household appliance. On the one hand, the resulting vibrations produce unpleasant noise for the user; on the other hand, this may also cause mechanical strain on the floor on which the household appliance is placed.

In order to prevent or at least strongly reduce vibrations of the laundry drum during operation of the washing machine, it has already been proposed in the prior art to fasten an annular unbalance compensation device (also known under the name "ball balancer") to the laundry drum. Such unbalance compensation devices have an annular hollow housing in which a compensation mass is located, which compensation mass is provided, for example, in the form of a plurality of spherical compensation elements. Such a compensating mass is movably mounted inside the housing and, during operation of the washing machine, tends to move (with reference to the diameter of the laundry drum) to the side opposite the unbalanced weight, in order to thereby produce a balancing force for the unbalanced mass and thus a balanced state overall.

For example, document US 2011/0203325 a1 presents a solution for fixing an unbalance compensation device, in which the housing of the unbalance compensation device is injection-molded onto the axial end face wall of the laundry drum.

Furthermore, it is known from the prior art to fasten an unbalance compensation device to a laundry drum by means of screws. In this case, it is known, for example, to provide the axial side of the imbalance compensation device with projections having radial bores (or so-called screw domes) which are each designed to receive a screw. However, due to such screw domes, a relatively large amount of installation space is required in the axial direction, whereby, disadvantageously, the effective volume of the laundry space of the drum as a whole must be significantly reduced. Furthermore, it can be seen as disadvantageous for this prior art that: additional fixing elements in the form of screws have to be provided and also a costly screwing process is required which causes a delay in the mounting process.

For example, EP 2154285 a1 proposes a screw connection between an unbalance compensation device and a laundry drum. Alternatively, a hook is also generally mentioned, which can be provided as a holding element for the unbalance compensation device, however no further information is given on how the hook can be shaped and exactly where it is fixed.

KR 102008037420 a furthermore shows an arrangement in which the unbalance compensation device is fastened to the laundry drum by means of a snap-in connection. In the embodiment of this document according to fig. 1, latching elements are formed on the radial outer circumference of the housing of the unbalance compensation device, which latching elements engage in corresponding latching openings of the laundry drum. In this case, the latching elements rest axially on the edges delimiting the latching openings, so that a form-locking connection is formed in the axial direction. This type of detent connection has, in particular, the disadvantage that: a release of the latching connection may occur. Namely: during operation of the washing machine, radial deformations (in particular ovalization) of the laundry drum may occur, which may lead to a radial offset between the outer casing (Mantel) of the laundry drum on the one hand and the housing of the unbalance compensation device on the other hand. If such a deviation occurs, the latching elements of the unbalance compensation device may become disengaged from the corresponding latching openings, and it may generally occur that the unbalance compensation device comes out of the axial recess of the laundry drum.

Further embodiments for fastening an unbalance compensation device to a laundry drum are known from DE 102013221292 a1 and DE 102013221293 a 1.

In particular, DE 102015222222 a1 discloses an unbalance compensation device which is fixed to the wall of a laundry drum by means of a separate retaining element. These separate retaining elements have radially projecting spring clips (federbugel) which snap radially into recesses in the wall.

In this embodiment, the above-described holding manner is already advantageous. However, only radial retention of the unbalance compensation device can be achieved.

Disclosure of Invention

The object of the present invention is to provide a household appliance for the care of laundry items, in which the annular imbalance compensation device is better secured in the axial direction.

According to the invention, this object is achieved by a household appliance having the features of claim 1.

One aspect of the invention relates to a household appliance for caring for laundry. The household appliance has a housing. Furthermore, the household appliance has a laundry drum. The laundry drum is rotatably supported in the housing. The household appliance furthermore has at least one annular imbalance compensation device. The household appliance furthermore has at least one holding element which is independent of the unbalance compensation device, of the laundry drum and of the housing. The unbalance compensation device is arranged on the laundry drum by means of such an independent at least one holding element. The holding element is fixed to the unbalance compensation device. In particular, the retaining element has an integrated pretensioning clip (vorspan bubububal). In the final installation state of the holding element in the household appliance, the pretensioning clip bears axially with pretensioning against the wall of the laundry drum, as viewed in the direction of the laundry drum. With such a configuration, the separate holding element is pressed to some extent in the axial direction against the wall of the laundry drum in the final mounted state. By means of this mechanical coupling, a pretensioning force is generated in the direction of the longitudinal axis. This improves the secure holding of the unbalance correction device in position relative to the laundry drum in the direction of the longitudinal axis.

In an advantageous embodiment, it is provided that the prestressing clamp bears axially pretensioned against a wall of the laundry drum, which is oriented perpendicularly to the longitudinal axis or at an angle of more than 60 ° and less than 130 ° relative to the longitudinal axis.

Preferably, the pretensioning clamp is designed as an axial end piece of the holding element (axiales endstwick). This configuration results in a freely suspended (frei kraged) end piece, from which the corresponding spring action is improved. This makes it possible to better establish the pretensioning force in the axial direction.

Preferably, the pretensioning clamp is oriented obliquely and radially inward toward the longitudinal axis. The pretensioning clamp is embodied in particular as a sub-element (teielement) of the holding element which is closest in the radial direction with respect to the longitudinal axis. This configuration also makes it possible to generate the axial pretension as defined as desired.

Preferably, the pretensioning clamp is U-shaped. The pre-tensioned clamp has in particular two freely overhanging clamp limbs. These clip legs constitute an elastic springing (elastish retainer) sub-element. In particular, these subelements spring elastically in the axial direction. In the final mounted state of the holding element, the two clip limbs bear axially with a pretensioning force (in particular directly) against the wall of the laundry drum. An undesired tilting of the holding element (in particular of the pretensioning clamp) is avoided by this type of coupling contact. The pretensioned position of the pretensioning clamp on the wall is thereby better maintained, and the axial direction of the generated pretensioning force is also better established, and in particular the direction pointing in the longitudinal axis is more precisely defined.

Preferably, the retaining element has a separate clamping element with respect to the pretensioning clamp. In particular, the unbalance compensation device has a housing. The housing has integrally formed coupling lugs (Koppelsteg). In particular, the clamping element of the holding element is directly coupled to the coupling web in a clamping manner. This achieves a mechanically stable and positionally accurate fitting of the holding element on the imbalance compensation device. However, this is also a connection which can be released without damage, so that the holding element can also be replaced.

Preferably, the coupling web is configured in a T-shaped cross section. In particular, the cross-section is configured such that it has the longitudinal axis of the laundry drum. Thus, especially the T-top (T-Dach) of this T-shape is oriented in the axial direction. A particularly reliable and mechanically stable connection of the holding element in position on the imbalance compensation device (in particular its housing) is achieved by such a geometry of the coupling webs.

It is preferably provided that the clamping element of the holding element has at least one first clamping section, viewed in the direction of the longitudinal axis of the laundry drum. The clamping element furthermore has at least one second clamping section, viewed in the direction of the longitudinal axis, which is axially offset relative to the first clamping section. By means of such a configuration, the holding element can be mechanically coupled to the coupling tab at two separate points. The two separate locations are arranged spaced apart from one another, viewed in the axial direction. In particular, in addition to the radial mounting of the retaining element on the coupling web in a position-fixed manner, it is also possible for the retaining element to be held axially on the coupling web in a position-fixed manner. This prevents the retaining element from sliding off in the axial direction on the coupling web undesirably. The clamping element is integrated into the holding element and is thus formed integrally therewith.

Preferably, these clamping portions are U-shaped sub-elements. These sub-elements face each other with their U-shaped openings.

It is preferably provided that the prestressing clip is formed adjacent to the end face of the second clamping section. This positioning makes it possible, on the one hand, to arrange the prestressing clip as a freely projecting, axially advantageously sprung end part of the retaining element, and, on the other hand, to leave the clamping element free from any restrictions with regard to its function. In particular, this also enables a simple mounting of the clamping element on the coupling web.

It is preferably provided that the clamping element has two independent first clamping parts which are arranged parallel to one another. In particular, the two first clamping portions are arranged spaced apart from one another in a circumferential direction about the longitudinal axis of the laundry drum. This configuration improves the secure attachment of the holding element in position on the coupling web of the housing of the imbalance compensation device. In particular, a twisting of the holding element relative to the housing is thus better prevented.

Preferably, the first front clamping portion surrounds the first front end of the T-top of the T-shape of the coupling web. In particular, the rear clamping portion surrounds the rear second end of the T-shaped T-top of the coupling tab. A particularly stable mechanical fit is thereby achieved. In particular in the axial direction, this particularly advantageously achieves a positional fixation on the coupling web. On the other hand, however, the mounting of the retaining element on the coupling web is also simply achieved. In particular, this can be achieved by pushing the retaining element onto the coupling tab in the circumferential direction about the longitudinal axis.

Preferably, the retaining element has a spring clip which is oriented radially outward with respect to the longitudinal axis of the laundry drum and is ramp-shaped and independent of the prestressing clip. In the final mounted state of the holding element, the spring clip snaps outward (eingeschnappt) in a further radially outward recess in the wall of the laundry drum, as viewed in the radial direction. By means of such a configuration, the radial retention of the unbalance compensation device on the laundry drum is improved. The imbalance compensation device is thus held on the laundry drum not only in the axial direction but also in the radial direction better by the pretensioning clamp on the one hand and the spring clamp on the other hand. In particular, the pretensioning clamp and the spring clamp extend in different radial directions relative to the longitudinal axis.

It can be provided that the spring clip extends between the two first clamping portions of the clamping part, viewed in the circumferential direction about the longitudinal axis. Thus, to a certain extent, viewed in a circumferential direction about the longitudinal axis a, there are arranged in sequence: the first clamping portion is followed by the spring clip and again by a further first clamping portion.

In an advantageous embodiment, it is provided that the holding element is designed as a multiple (mehrfach) bent one-piece strap (Streifen). In particular, the holding element can be configured as a sheet-metal bent component, in particular as a stamped sheet-metal bent component.

In an advantageous embodiment, it is provided that the pretensioning clip is designed as a plate-type strap. By means of this configuration, the spring action is improved on the one hand. On the other hand, a plate tongue can be realized in this way to a certain extent, which can be brought into connection with the wall of the laundry drum in a better direct contact (in particular as a corresponding line contact or surface contact). This improves the application of axial pretension.

The household appliance according to the invention for the care of laundry items has a housing in which a laundry drum is rotatably mounted. The household appliance furthermore has at least one annular unbalance compensation device for compensating for an unbalance in the rotating laundry drum which is caused by the asymmetrical distribution of the laundry in the laundry drum. Such an annular unbalance compensation device is arranged on the laundry drum.

An unbalance compensation device is understood here to be a device in which: the device is designed to compensate for and thus prevent an unbalance of the laundry drum. The unbalance compensation device can have a compensation mass (for example in the form of a plurality of ball elements) which is movably arranged in the housing. Such unbalance compensation devices can also be referred to as "Ball-balancing devices".

In particular, it is provided that the coupling webs are arranged on a housing wall of the housing, in particular a radially outer wall of the housing. This housing wall faces a wall region of the wall of the laundry drum which is further radially outward with respect to the housing wall. The coupling webs extend radially outward from the housing wall toward the wall region. Thereby facilitating the positioning of the holding element in terms of location (

Positionierung) and is located in an intermediate space between the wall of the laundry drum and the housing of the unbalance compensation device.

In particular, it is provided that at least three such individual retaining elements are formed, which are arranged at equal distances from one another in the circumferential direction about the longitudinal axis of the laundry drum. This makes it possible to achieve an azimuthally symmetrical support of the imbalance compensation device, which is produced at several points by a radially outward acting pretension and allows a certain freedom of movement in the radial direction perpendicular to the longitudinal axis by the spring clip. On the other hand, the plurality of holding elements produce a spring force acting outward from the longitudinal axis in a star-shaped manner, by means of which the imbalance compensation device is supported in a very centered manner.

By the expressions "upper", "lower", "front", "rear", "horizontal", "vertical", "depth direction", "width direction", "height direction", etc., the positions and orientations are given which result when the appliance is used and arranged as specified.

Further features of the invention emerge from the claims, the figures and the description of the figures. The features and feature combinations mentioned above in the description and the features and feature combinations mentioned below in the description of the figures and/or shown in the figures individually can be used not only in the respectively stated combination but also in other combinations without leaving the framework of the invention. Thus, such embodiments of the invention are also considered to be included and disclosed, which embodiments are not explicitly shown in the drawings and are not explained explicitly, but result from a combination of separate features from the explained embodiments and can be produced. Such embodiments and combinations of features may also be considered disclosed which do not have all the features of the independent claims initially expressed. Furthermore, embodiments and combinations of features that exceed or deviate from the combinations of features set forth in the claims can be considered to be encompassed by the present invention, especially in light of the embodiments set forth above.

Drawings

Next, embodiments of the present invention are explained in more detail based on schematic drawings. The figures show:

fig. 1 shows a schematic front view of an embodiment of a household appliance for care of laundry according to the invention;

fig. 2 shows a schematic representation of a sectional view through a region in which a laundry drum and an unbalance compensation device are arranged according to an embodiment of the invention;

fig. 3 shows a sectional illustration through a laundry drum and an unbalance compensation device fixed thereto in the region of an embodiment of a household appliance; and

fig. 4 shows a perspective view of the sub-component in fig. 3.

In the figures, identical or functionally identical elements are provided with the same reference signs.

Detailed Description

Fig. 1 shows a simplified front view of a household appliance 1 for conditioning laundry, which household appliance 1 can be, for example, a washing machine or a washer-dryer. The household appliance 1 has a housing 2, in which housing 2 a laundry drum 3 is rotatably mounted. In this embodiment in the view in fig. 1, the longitudinal or rotational axis a (see fig. 2) is oriented perpendicular to the plane of the drawing. The household appliance 1 also has a lye container 4, which lye container 4 is also arranged in the housing 2 and surrounds the laundry drum 3. The laundry drum 3 has a hollow-cylindrical outer shell and a rear-side end wall and is furthermore open on the front side, so that a loading opening is provided here, through which laundry can be inserted into the interior 5 of the laundry drum 3. The filling opening can be closed by a door 6, said door 6 being movably arranged on the housing 2.

In fig. 2 a vertical sectional view is shown, in turn a view in a sectional plane related to the y-z plane. The figure shows a laundry drum 3 with a hollow cylindrical housing 7 (or wall). The charging opening 8 is also shown. Adjacent to the rear wall or rear end wall 9, the laundry drum 3 has a star carrier 10, which star carrier 10 is fixedly connected to the laundry drum 3. The star-shaped carrier 10 is connected to the shaft 11 of the household appliance 1 in a rotationally fixed manner. The shaft 11 is driven by a drive motor, not shown, so that the laundry drum 3 is caused to rotate about the axis of rotation a.

During operation of the household appliance 1 and thus during rotation of the laundry drum 3, the laundry introduced may rest on the inner side 12 of the housing 7 in an asymmetrically distributed manner about the axis of rotation a, so that an imbalance may occur during rotation of the laundry drum 3. In order to counteract (or compensate) such an imbalance, in the embodiment shown the household appliance 1 has at least one (in particular at least two) imbalance compensation means 13 and 14. As can also be seen, a plurality of drivers are arranged on the inner side 12, of which only one driver 15 is visible in fig. 2.

Viewed in the direction of the axis a, the first unbalance compensation device 13 in the front is arranged in the front region 16 of the laundry drum 3 (and in particular the housing 7), while the second unbalance compensation device 14 is arranged in the rear region 17.

The first unbalance compensation device 13 is configured as a circumferentially closed ring which is oriented rotationally symmetrically about the axis a. The first unbalance compensation device 13 has a housing 18 which is annular in this respect, which housing 18, in the sectional illustration in fig. 2, has a cross section which is, in particular, quadrangular or four-sided. The housing 18 has a cavity 19, in which cavity 19 one or more compensating elements 20 are movably arranged relative to the housing 18. In this embodiment, the compensating element 20 may be a sphere. In addition or alternatively thereto, a liquid medium can also be arranged in the cavity 19.

Correspondingly, a second unbalance compensation device 14 is also provided, the second unbalance compensation device 14 likewise having: a correspondingly configured housing 21, a cavity 22 located in the interior in this respect, and (particularly preferably a plurality of) compensating elements 23 which are movable in the cavity 22 relative to the housing 21.

Fig. 3 shows a detail view of the region I circled in fig. 2 by dashed lines.

As can be seen, the laundry drum 3 has a receiving region 24, into which receiving region 24 the housing 18 is inserted. The outer wall of the laundry drum 3 (which forms the housing 7) has a fold 26 in the front region. This stabilizes the front region of the laundry drum 3 and thus the housing 7.

In this housing 7, a wall region 25 is formed, in which wall region 25 a recess 27 is formed as a through-opening.

The housing 18 has a housing wall 18a, which housing wall 18a faces the wall region 25, as seen in the radial direction.

The coupling webs 28 are formed integrally and thus in one piece in the radially outer housing wall 18 a. The coupling webs 28 are formed in the rear region of the housing wall 18a, viewed in the axial direction and thus in the direction of the longitudinal or rotational axis a, and extend in the radial direction in the direction of the wall region 25.

The unbalance compensation device 13 is connected to a separate holding element 29 with respect to the unbalance compensation device 13 and is fastened to the laundry drum 3 (in particular in the wall region 25). Preferably, a plurality of such individual holding elements 29 is provided, which holding elements 29 are arranged equidistantly with respect to one another in the circumferential direction about the axis a. Preferably, at least three such retaining elements 29 are provided. These retaining elements 29 are also configured independently of the housing 2 and of the laundry drum 3.

The holding element 29 is designed in one piece and is designed as a multiply bent strip. The holding element 29 is made of metal.

The holding element 29 has a spring clip 30. The spring clip 30 extends radially and obliquely outward from a transition or passage 31 (fig. 4) and is free-floating.

The spring clip 30 has in its ramp-like form an inclined start wall or start ramp 32. Furthermore, the spring clip 30 has a ramp wall 33, which ramp wall 33 is oriented at an angle of less than 90 ° relative to the start ramp 32 and opens onto the start ramp 32. The transition 34 between the start ramp 32 and the ramp wall 33 is arranged in the final installation state (as shown in fig. 3) extending through the recess 27.

Furthermore, the spring clip 30 has a tongue 35 at its free overhanging end remote from the transition 34. The tongue 35 opens onto the ramp wall 33 at that end of the ramp wall 33 which is remote from the transition 34.

As can be seen, in the final mounted state, the tongue 35 rests on the inner side 36 of the wall region 25.

In the final installation state shown in fig. 3, the radially movable and sprung element is held in a radially outwardly biased manner with respect to the spring clip 30. This results in a radial bearing force, which holds the housing 18 on the laundry drum 3 and in particular also holds the housing 18 centrally with respect to the axis a.

The spring clip 30 is free to cantilever outwardly in a radial direction relative to the longitudinal axis a. Due to the oblique orientation of the spring clip 30, the spring clip 30 is resiliently arranged in the radial direction. The respective axis about which the spring clip 30 springs is thus oriented in the circumferential direction, in particular to some extent, relative to the longitudinal axis a.

As can also be seen in fig. 3, the integrally formed retaining element 29 has a clamping element 37. The clamping element 37 has a first clamping section 38, viewed in the direction of the longitudinal axis a. In the present illustration, this first clamping portion 38 appears as the preceding first clamping portion 38. In this exemplary embodiment, provision is made for the clamping element 37 to have this first clamping section 38 and a further first clamping section 39 which is independent of this first clamping section 38. This further first clamping portion 39 is formed at a distance from the first clamping portion 38, as seen in the direction of the circumference of the longitudinal axis a. In the cross-sectional illustration shown in fig. 3, which shows an axial cross-section, the two

first clamping portions

38 and 39 are formed as U-shaped partial elements.

Furthermore, the clamping piece 37 has a second clamping portion 40 as seen in the axial direction. In this embodiment, the second clamping portion 40 is present as the following second clamping portion 40. The second clamping portion 40 is also U-shaped in cross section. The U-shaped opening of the second clamping portion 40 faces the U-shaped openings of the

first clamping portions

38 and 39.

As can also be seen in fig. 3, the coupling web 28 already mentioned has a T-shaped configuration in this cross-sectional view. The T-shape has a T-bar portion 41. The T-bar 41 is oriented in the radial direction. Further, the T-shape has a T-top 42. The T-top 42 is axially oriented in the cross-sectional view. The T-top 42 has an axially forward end 43 and an axially rearward end 44. As can be seen, these

first clamping portions

38 and 39 enclose the forward end 43. The second clamping portion 40 surrounds the rear end 44.

It can also be seen that in this exemplary embodiment, the spring clip 30 is arranged between the two

first clamping portions

38 and 39, as seen in the circumferential direction about the axis a.

In an advantageous embodiment, the integrally formed retaining element 29 furthermore has an integrated prestressing clip 45. The pretensioned clip 45 rests against the wall 7 in the final installed state (as shown in fig. 3). In particular, the prestressing clip 45 rests on a wall region 7a of the wall 7 which is oriented substantially perpendicularly to the longitudinal axis a. The wall region 7a is formed in a different plane than the wall region 7b of the wall 7. The wall region 7b is such a wall region: a recess 27 is formed in the wall region, into which recess 27 a spring clip 30 is snapped. The wall region 7b is therefore in particular a wall region 25. In particular, the wall region 7b is oriented parallel to the longitudinal axis a or substantially parallel to the longitudinal axis a.

As can also be seen in fig. 3, the retaining element 29 is arranged in the axial direction directly against the wall 7 (in particular the wall region 7a) with pretensioning by means of a pretensioning clip 45.

The pretensioning clip 45 is present as an axial end piece of the holding element 29. The pretensioning clip 45 is freely suspended. The pretensioning clamp 45 extends radially and obliquely inward toward the longitudinal axis a. In contrast, the prestressing clip 45 is formed diametrically opposite to the orientation of the spring clip 30. The spring clip 30 extends in a radial direction outward and away from the longitudinal axis a.

Fig. 4 shows a perspective view of the housing 18 of the imbalance compensation device 13. The holding element 29 is shown in a perspective view. In this embodiment, the pre-tensioning clamp 45 is configured as a U-shaped clamp. The U-shaped clip has two

clip legs

46 and 47 that freely overhang radially inward. These clip limbs are arranged spaced apart from one another, viewed in the circumferential direction about the axis a.

As can be seen, the prestressing clip 45 (in particular the clip limbs 46, 47) is constructed in the manner of a plate or as a plate-type strap.

List of reference numerals

1 household appliance

2 casing

3 washing drum

4 lye container

5 inside

6 door

7 hollow cylindrical shell

7a wall region

7b wall region

8 charging opening

9 rear wall

10 Star vector

11 axle

12 inside

13, 14 unbalance compensator

15 driving part

16 front region

17 rear area

18 casing

18a housing wall

19 cavity

20 compensating element

21 casing

22 cavity

23 compensating element

24 receiving area

25 wall region

26 folding and pressing part

27 hollow part

28 coupling tab

29 holding element

30 spring clamp

31 through port (Anm ü ndung)

32 starting ramp

33 ramp wall

34 transition part

35 tongue part

36 inside

37 clamping member

38 clamping part

39 clamping part

40 clamping part

41T rod part

Top of 42T

43 forward end

44 at the rear end

45 pre-tightening clamp

46 clip branch edge

47 hoop supporting edge

Longitudinal axis A

Claims

1. A household appliance (1) for caring for laundry items, having:

-a housing (2) in which a laundry drum (3) is rotatably supported, and

-at least one endless unbalance compensation device (13, 14) which is arranged on the laundry drum (3) by means of at least one separate retaining element (29) of the household appliance (1),

wherein the at least one holding element (29) is fixed on an unbalance compensation device (13, 14) independent of the holding element,

it is characterized in that the preparation method is characterized in that,

the holding element (29) has a prestressing clip (45) which, in the final mounted state, bears in an axially prestressed manner against the wall (7) of the laundry drum (3), as viewed in the direction of the longitudinal axis (A) of the laundry drum (3).

2. Household appliance (1) according to claim 1,

it is characterized in that the preparation method is characterized in that,

the pretensioning clamp (45) is designed as an axial end piece of the holding element (29).

3. Household appliance (1) according to claim 1 or 2,

it is characterized in that the preparation method is characterized in that,

the prestressing clamp (45) is oriented obliquely radially inward toward the longitudinal axis (A).

4. Household appliance (1) according to any of the preceding claims,

it is characterized in that the preparation method is characterized in that,

the pretensioning clamp (45) is U-shaped and has two freely protruding clamp limbs (46, 47) as elastically resilient partial elements, which rest axially pretensioned against the wall (7) in the final installation state.

5. Household appliance (1) according to any of the preceding claims,

it is characterized in that the preparation method is characterized in that,

the holding element (29) has a clamping part (37) which is independent of the pretensioning clamp (45), and the unbalance compensation device (13, 14) has a housing (18, 20),

wherein the housing (18, 20) has a coupling web (28) which is formed integrally with the housing, and the clamping element (37) is directly coupled in a clamping manner to the coupling web (28).

6. Household appliance (1) according to claim 5,

it is characterized in that the preparation method is characterized in that,

the coupling webs (28) are T-shaped in axial cross section.

7. Household appliance (1) according to claim 5 or 6,

it is characterized in that the preparation method is characterized in that,

the clamp (37) has:

-at least one first clamping section (38, 39) seen in the direction of the longitudinal axis (a), and

-at least one second clamping portion (40) axially offset with respect to the first clamping portion (38, 39) as seen in the direction of the longitudinal axis (a).

8. Household appliance (1) according to claim 7,

it is characterized in that the preparation method is characterized in that,

the pretensioning clamp (45) is configured adjacent to the end face of the second clamping section (40).

9. Household appliance (1) according to claim 7 or 8,

it is characterized in that the preparation method is characterized in that,

the clamping element (37) has two first clamping sections (38, 39) which are independent and arranged parallel to one another,

in particular, the first clamping portions (38, 39) are arranged at a distance from one another in a circumferential direction about the longitudinal axis (A).

10. The household appliance (1) according to claim 6 and any one of claims 7 to 9,

it is characterized in that the preparation method is characterized in that,

the first clamping portion (38, 39) surrounds a front first end (43) of a T-top (42) of the T-shape of the coupling tab (28), and

the second clamping portion (40) surrounds a rear second end (44) of a T-top (42) of the T-shape of the coupling tab (28).

11. Household appliance (1) according to any of the preceding claims,

it is characterized in that the preparation method is characterized in that,

the holding element (29) has a ramp-like spring clip (30) which is oriented radially outward with respect to the longitudinal axis (A) of the laundry drum (3) and is separate from the prestressing clip (45), and which, in the final installation state, when viewed in the radial direction, snaps outward into a recess (27) in the wall (7) of the laundry drum (3).

12. Household appliance (1) according to claim 9 and claim 11,

it is characterized in that the preparation method is characterized in that,

the spring clip (30) is arranged between the two first clamping portions (38, 39) as seen in a circumferential direction about the longitudinal axis (A).

13. Household appliance (1) according to claim 1,

it is characterized in that the preparation method is characterized in that,

the holding element (29) is designed as a multiply curved one-piece strip.

14. Household appliance (1) according to any of the preceding claims,

it is characterized in that the preparation method is characterized in that,

the pre-tensioning clamp (45) is designed as a plate-type strap.

15. Household appliance (1) according to any of the preceding claims,

it is characterized in that the preparation method is characterized in that,

the wall is a housing (7) of the laundry drum (3), and/or

At least three individual retaining elements (29) are provided, which are arranged equidistantly in a circumferential direction about the longitudinal axis (A) of the laundry drum (3).