Profile arrangement for laundry treatment machines

Abstract

Profile arrangement (10) for a laundry treatment machine (1) with a rotating washing drum (2) with a drum shell (3) which is provided with a front and / or rear end plate (5) viewed in the direction of the longitudinal axis (4) of the washing drum (2), wherein at least one free end (51) of at least one end plate (5) is spaced apart from at least one free end (61) of at least one bearing plate (6), is rotatably arranged about the longitudinal axis (4) with an interposed profile arrangement (10), wherein the profile arrangement (10) is made of a polymeric material, wherein the profile arrangement (10) has at least one base (11), and wherein the profile arrangement (10) is operatively connected with the at least one free end (61) of at least one bearing plate (6) or the at least one free end (51) of at least one end plate (5).that the base (11) is operatively connected via at least one clamping device (8) at least partially to the at least one free end (51) of at least one end face (5) or the at least one free end (61) of at least one bearing shield (6), that the base (11) of the profile arrangement (10) is made at least partially of a soft-elastic material with a Shore A hardness according to DIN EN ISO 868:2003-10 of about 40 to 80, preferably 50 to 75, that the clamping device (8) encompasses at least one free end (51) of at least one end face (5) or at least one free end (61) of at least one bearing shield (6).

Description

[0001] The invention lies in the field of profile arrangements for laundry treatment machines, in particular suitable household appliances such as tumble dryers or washer-dryers which have a rotating laundry drum.

[0002] In the context of the present invention, a tumble dryer is to be understood as a classic tumble dryer, and a washer-dryer is to be understood as a multifunctional combination appliance that combines the functions of washing and drying laundry.

[0003] A washing machine drum serves to move laundry items to be dried in a process airflow so that they can be dried evenly. The drum is designed to rotate around a generally horizontal axis, lifting and dropping the laundry items as it turns. For this purpose, it uses so-called "lifters," namely rib-like structures that extend into the drum and carry the laundry items along as it rotates.

[0004] The rotation of the washing drum leads, on the one hand, to unwanted, loud noises and, on the other hand, to higher energy consumption due to friction losses in the current state of technology.

[0005] German patent application DE 8214637 U1 discloses a profile arrangement for a laundry treatment machine. This profile arrangement, which is positioned between a stationary housing part and the rotating drum, comprises an elastic ring body and a sliding element connected to it. The ring body is formed from an elastic foam compound that adheres to the support of the ring body and to the sliding element. Furthermore, the ring body is embedded in the foam on the stationary housing part, the rear wall of the housing, or the rear wall of the laundry drum adjacent to the housing part. The ring body has a conical shape and a sliding element, made of felt and glued to the ring body, is arranged at its tapered end.

[0006] A disadvantage of this solution is that the coefficients of sliding friction between the individual components are very high.

[0007] A further disadvantage is that fluctuating or different contact forces due to axial movements and tolerances of the washing drum negatively affect the profile arrangement.

[0008] Another disadvantage of the current state of the art is that, due to the high sliding friction values ​​and the significantly higher contact forces, the laundry treatment machines consume more energy.

[0009] The invention is therefore based on the objective of overcoming the disadvantages of the prior art and providing profile arrangements for laundry treatment machines that are economically and sustainably manufacturable, that can be operated quietly when used as intended, and that lead to a significant reduction in energy consumption over their service life.

[0010] According to the invention, this problem is solved by the features of claim 1. Further advantageous embodiments are described in the dependent claims.

[0011] It has surprisingly been found that a profile arrangement for a laundry treatment machine with a rotating washing drum having a drum shell provided with a front and / or rear end plate in the direction of the longitudinal axis of the washing drum, wherein at least one free end of at least one end plate is spaced apart from at least one free end of at least one bearing plate, is rotatably arranged about the longitudinal axis with an interposed profile arrangement, wherein the profile arrangement is made of a polymeric material, is characterized in that the profile arrangement has at least one base, and that the profile arrangement is operatively connected to the at least one free end of at least one bearing plate or to the at least one free end of at least one end plate.that the base is operatively connected, at least partially, to at least one free end of at least one end face or at least one free end of at least one bearing plate via at least one clamping device; that the base of the profile arrangement is made, at least partially, of a soft-elastic material with a Shore A hardness according to DIN EN ISO 868:2003-10 of approximately 40 to 80, preferably 50 to 75; that the clamping device engages at least one free end of at least one end face or at least one free end of at least one bearing plate, thus solving this problem. This advantageously makes it possible to provide a profile arrangement for a laundry treatment machine that leads to a significant reduction in energy consumption through reduced frictional forces, thereby enabling an increase in the energy efficiency class of the laundry treatment machines.

[0012] One advantage of the profile arrangement for a laundry treatment machine is that the profile arrangement used can be used both statically and dynamically.

[0013] A further advantage is that the profile arrangement can be mounted in the laundry treatment machines both on the stationary bearing plate and on the free ends of the rotating drum's end faces. It is also considered advantageous that the elastic base of the profile arrangement makes it possible to maintain a constant contact pressure throughout the laundry treatment machine's service life, even with fluctuating rotation. Another advantage of the profile arrangement for a laundry treatment machine is that both material and manufacturing costs are very low, while the necessary raw materials are more readily available. As a result, this profile arrangement has a significantly lower carbon footprint than profile arrangements in the prior art.

[0014] A further advantage of the profile arrangement for a laundry treatment machine is that the clamping device of the sealing arrangement seals around at least one free end of an end plate or at least one free end of a bearing plate. This ensures that the profile arrangement for a laundry treatment machine can be sealed with various designed washing drums and bearing plates thanks to this optimized profile arrangement.

[0015] The profile arrangement for a laundry treatment machine is advantageously designed such that the profile arrangement is operatively connected via the at least one sealing element to the at least one free end of at least one bearing plate or the at least one free end of at least one end plate. This optimized profile arrangement can therefore be optimally used in various laundry treatment machine designs, both during manufacturing and repair.

[0016] A further advantage of the profile arrangement for a laundry treatment machine is that the profile arrangement seals the at least one free end of at least one end plate or the at least one free end of at least one bearing plate via the at least one sealing element. Advantageously, this profile arrangement for a laundry treatment machine optimally prevents lint accumulating in the washing drum from escaping during normal use of the laundry treatment machine.

[0017] Advantageously, the profile arrangement for a laundry treatment machine is further designed such that the coefficient of friction µ between the profile arrangement and the at least one free end of at least one end plate or the at least one free end of at least one bearing plate is a maximum of 0.20, preferably a maximum of 0.15, and particularly preferably a maximum of 0.12, measured in accordance with DIN EN ISO 8295:2004-10. Thus, when the profile arrangement for a laundry treatment machine is used as intended, the noise level is significantly reduced, and the energy consumption is very low due to the low friction between the profile arrangement and the components of the laundry treatment machine.

[0018] Another advantage of the profile arrangement for a laundry treatment machine is that the mechanical power for rotation (P) of the washing drum with at least one profile arrangement, measured at a drive shaft in the longitudinal axis of the laundry treatment machine, is a maximum of 25 W, preferably a maximum of 20 W, and particularly preferably a maximum of 15 W, determined from the product of torque (M) and angular velocity (ω) about the longitudinal axis, according to the formula P = M * ω. The angular velocity (ω) about the longitudinal axis of the washing drum is determined parallel to the direction vector e.

[0019] For a drive shaft of the washing drum of a laundry treatment machine with the mounted profile arrangement, a torque results.

[0020] At a rotational speed n= ω / 2π of approximately 50 rpm or 0.83 rpm, it was surprisingly found that the power loss due to friction of the profile arrangement on the bearing shield is only about 2 to 5 W, preferably 2 to 4 W, determined according to the formula

[0021] Another advantage of the profile arrangement for a laundry treatment machine is that the base of the profile arrangement is integrally connected to the sealing element and / or the clamping device.

[0022] Another advantage of the profile arrangement for a laundry treatment machine is that the base of the profile arrangement is materially bonded to the sealing element and / or form-fitted to the clamping device. This significantly reduces the manufacturing costs of the profile arrangement and enables sustainable production, for example, using extrusion, co-extrusion, or post-co-extrusion processes.

[0023] A further advantage of the profile arrangement for a laundry treatment machine is that the base of the profile arrangement is positively connected to the sealing element and / or the clamping device. This allows the components of the profile arrangement for the laundry treatment machine to be manufactured cost-effectively in individual production steps, enabling subsequent assembly of the profile arrangement for the laundry treatment machine from these components.

[0024] Furthermore, it has proven advantageous in the profile arrangement for a laundry treatment machine that the clamping device and / or the base and / or the sealing element of the profile arrangement has at least one recess.

[0025] Furthermore, it has proven advantageous for the profile arrangement of a laundry treatment machine that the recess of the clamping device and / or the base and / or the sealing element of the profile arrangement is approximately prismatic, semicircular, round, triangular, or similar in cross-section. This allows for optimized profile arrangements for laundry treatment machines that can be optimally adapted to a wide variety of geometries, particularly radii or diameters of the washing drum.

[0026] A further advantage of the profile arrangement for a laundry treatment machine is that the sealing element and / or the clamping device of the profile arrangement is at least partially made of a polymeric material with a Shore D hardness according to DIN EN ISO 868:2003-10 of approximately 40 to 80, preferably 50 to 70. This makes it possible to provide profile arrangements for laundry treatment machines that optimally connect or seal, in particular, a free end of an end plate or a free end of a bearing plate of the laundry treatment machine.

[0027] It has also proven advantageous in the profile arrangement for a laundry treatment machine that the profile arrangement includes at least one identification element. This surprisingly makes it possible to arrange an identification element at a readily visible location within the profile arrangement, which is not immediately visible or recognizable during the intended use of the laundry treatment machine with a profile arrangement. Furthermore, it has surprisingly proven advantageous in the profile arrangement for a laundry treatment machine that the identification element is applied at least partially using sympathetic ink. For the purposes of this invention, sympathetic ink is understood to be an ink that is either not immediately visible or recognizable, or that changes its properties after a certain period of time. Thus, profile arrangements for a laundry treatment machine are available that...which are, on the one hand, economical and cost-effective to manufacture, but on the other hand, also contain at least one piece of information that is not immediately visible or recognizable. In the profile arrangement for a laundry treatment machine, it has also proven advantageous that the identification element contains at least one piece of information recognizable by an identification device, such as the manufacturer's name, the material specification, the article number, and the like. Thus, profile arrangements for laundry treatment machines are available that are economical and sustainable to manufacture, have an aesthetically pleasing appearance, and contain important information that is not immediately apparent to everyone during normal use. It is also advantageous for the profile arrangement for a laundry treatment machine that the identification element is designed in such a way that...that it is visible in electromagnetic radiation in the optical frequency range of approximately 100 nm to approximately 400 nm. This advantageous design of the identification element enables the realization of a profile arrangement for a laundry treatment machine that is extremely economical and cost-effective to manufacture, but which can also be characterized with regard to previously invisible or unrecognizable information using simple identification devices, such as a so-called UV lamp. In another advantageous embodiment of the profile arrangement for a laundry treatment machine, the identification element is designed, for example, as an RFID code and / or QR code. A further advantage of the profile arrangement for a laundry treatment machine is that the clamping device and / or the base and / or the sealing element of the profile arrangement is made of polyolefin, such as polypropylene (PP) or polyethylene (PE); a styrene-based polymer.such as polystyrene (PS) or styrene-butadiene copolymer with predominant styrene (SB) or acrylonitrile-styrene-acrylate copolymers (ASA) or acrylonitrile-butadiene-styrene copolymers (ABS) or styreneacrylonitrile (SAN); polybutylene terephthalate (PBT); polyethylene terephthalate (PET); polyoxymethylene (POM); polyamide (PA); polycarbonate (PC); polymethyl methacrylate (PMMA); polyphenylene oxide (PPO); polyetheretherketone (PEEK); polyphenylene sulfide (PPS); liquid crystal polymer (LCP); polyamide-imides (PAI); polyphenylsulfone (PPSU); polyaryletherketone (PAEK); polyacrylonitrile (PAN); polyetherketone (PEK); polyimide (PI); polyisobutene (PIB); polyphthalamide (PPA); polypyrrole (PPY); polyurethane (PUR); polyvinyl alcohol (PVA); Polyvinyl acetate (PVAC) and mixtures of at least two of these materials are based.

[0028] Furthermore, the profile arrangement for a laundry treatment machine is advantageously designed such that the clamping device and / or the base and / or the sealing element of the profile arrangement contains at least one of the following additives: stabilizers to improve resistance to light exposure, UV radiation, and weathering; stabilizers to improve thermal and thermo-oxidative resistance; stabilizers to improve hydrolytic resistance; stabilizers to improve acidolytic resistance; lubricants; demolding aids; color additives; crystallization-regulating substances and nucleating agents; flame retardants; impact modifiers; fillers; and / or plasticizers. The additives may advantageously comprise renewable raw materials in amounts of approximately 0.01 to 100%, preferably 20 to 100%, and particularly preferably 40 to 100%.

[0029] Thus, a profile arrangement for a laundry treatment machine can be provided that is both economical and sustainable to manufacture, but also realizes the functions known from the state of the art, such as energy consumption, noise generation, and condensation rate.

[0030] Another preferred embodiment relates to a profile arrangement for a laundry treatment machine according to one of the previous embodiments, wherein the clamping device and / or the base and / or the sealing element is based on a halogen-free, polymeric material, preferably polypropylene (PP), acrylonitrile butadiene styrene copolymer (ABS), polymethyl methacrylate (PMMA), polyethylene terephthalate (PET), polyethylene (PE), styrene-ethylene butadiene styrene block copolymer (SEBS), polyamide (PA), thermoplastic olefin-based elastomer (TPO), thermoplastic urethane-based elastomer (TPU), thermoplastic copolyester (TPC), styrene block copolymers (SBS, SEBS, SEPS, SEEPS and MBS), thermoplastic copolyamide (TPA) and the like. The polymeric material can advantageously comprise renewable raw materials of approximately 0.01 to 100%, preferably 20 to 100%, and particularly preferably 40 to 100%.This measure has the advantage that this material is readily available at low cost, easy to process, and also simple to chemically modify.

[0031] For the production of a profile arrangement for a laundry treatment machine, it is advantageous to use data processing-machine-readable, three-dimensional models. The invention also includes a method for generating a data processing-machine-readable, three-dimensional model for use in a manufacturing process for a profile arrangement of the laundry treatment machine.

[0032] In this process, the method also includes in particular the input of data representing a profile arrangement for a laundry treatment machine into a data processing machine and the use of this data to represent a profile arrangement for a laundry treatment machine as three-dimensional models, wherein the three-dimensional model is suitable for use in the manufacture of a profile arrangement for a laundry treatment machine.

[0033] The profile arrangement for a laundry treatment machine can be manufactured wholly or partially using a line-by-line or layer-by-layer manufacturing process. The use of a 3D dataset during assembly or manufacturing is highly advantageous. The process also includes a technique in which the input data from one or more 3D scanners, operating either on contact or non-contact (where, in the latter case, energy is emitted onto a profile arrangement of the laundry treatment machine and the reflected energy is received), is used to generate a virtual three-dimensional model of the profile arrangement of the laundry treatment machine using computer-aided design software.

[0034] The manufacturing process can include an additive powder bed process, in particular selective laser melting (SLM), selective laser sintering (SLS), selective heat sintering (SHS), selective electron beam melting (EBM / Electron Beam Additive Manufacturing - EBAM) or solidification of powder material using binder (binder jetting).

[0035] The manufacturing process can include an additive manufacturing process, in particular welding, wax deposition modeling (WDM), contour crafting, metal powder deposition (MPA), plastic powder deposition, cold gas spraying, electron beam welding (EBW), or fused deposition modeling (FDM) or fused filament fabrication (FFF). The manufacturing process can also include an additive liquid material process, in particular stereolithography (SLA), digital light processing (DLP), or multi-jet modeling.

[0036] (MJM), Polyjet Modeling, or Liquid Composite Moulding (LCM). Furthermore, the manufacturing process may include other additive manufacturing processes, in particular Laminated Object Modelling (LOM), 3D screen printing, or light-controlled electrophoretic deposition.

[0037] The profile arrangement for a laundry treatment machine will now be described in more detail using these non-restrictive exemplary embodiments.

[0038] They show: Fig. 1: Perspective partial section view of a laundry treatment machine; Fig. 2: Perspective partial section view of a profile arrangement with components of a laundry treatment machine; Fig. 3: Perspective detailed section view of another profile arrangement with components of a laundry treatment machine; Fig. 4: Perspective view of a profile arrangement of a laundry treatment machine; Fig. 5: Perspective view of another profile arrangement of a laundry treatment machine.

[0039] In the Fig. Figure 1 shows a perspective partial section view of a laundry treatment machine 1.

[0040] In this embodiment, the laundry treatment machine 1 has a body 20 which is generally made of metal elements.

[0041] Furthermore, the laundry treatment machine 1 has a door 21 through which, when used as intended, damp or wet laundry can generally be introduced into the washing drum 2.

[0042] In this partial sectional view of the laundry treatment machine 1, at least the washing drum 2, which has a drum shell 3, is shown.

[0043] Furthermore, in the laundry treatment machine 1, at least one end plate 5 is arranged on the washing drum 2, which in this embodiment is designed as a front end plate 5.

[0044] In the Fig. Figure 2 shows a perspective partial section view of a profile arrangement 10 with components of a laundry treatment machine 1.

[0045] The profile arrangement 10 for a laundry treatment machine 1 with a rotating washing drum 2 with a drum shell 3, which is provided with a front and / or rear end plate 5 as seen in the direction of the longitudinal axis 4 of the washing drum 2, wherein at least one free end 51 of at least one end plate 5 is spaced apart from at least one free end 61 of at least one bearing plate 6, is rotatably arranged about the longitudinal axis 4 with an interposed profile arrangement 10, wherein the profile arrangement 10 is made of a polymeric material, wherein the profile arrangement 10 has at least one base, and wherein the profile arrangement 10 is operatively connected with the at least one free end 61 of at least one bearing plate 6 or the at least one free end 51 of at least one end plate 5.that the base is operatively connected via at least one clamping device 8 at least partially to the at least one free end 51 of at least one end face 5 or the at least one free end 61 of at least one bearing plate 6, that the base of the profile arrangement 10 is at least partially made of a soft-elastic material with a Shore A hardness according to DIN EN ISO 868:2003-10 of about 40 to 80, preferably 50 to 75, that the clamping device 8 encompasses at least one free end 51 of at least one end face 5 or at least one free end 61 of at least one bearing plate 6.

[0046] In the Fig. Figure 3 shows a perspective detail section view of another profile arrangement 10 with components of a laundry treatment machine 1.

[0047] The profile arrangement 10 for a laundry treatment machine 1 with a rotating washing drum 2 with a drum shell 3, which is provided with a front and / or rear end plate 5 as seen in the direction of the longitudinal axis 4 of the washing drum 2, wherein at least one free end 51 of at least one end plate 5 is spaced apart from at least one free end 61 of at least one bearing plate 6, is rotatably arranged about the longitudinal axis 4 with an interposed profile arrangement 10, wherein the profile arrangement 10 is made of a polymeric material, that the profile arrangement 10 has at least one base 11, that the profile arrangement 10 is in operative connection with the at least one free end 61 of at least one bearing plate 6 or the at least one free end 51 of at least one end plate 5,that the base 11 is operatively connected via at least one clamping device 8 at least partially to the at least one free end 51 of at least one end face 5 or the at least one free end 61 of at least one bearing plate 6, that the base 11 of the profile arrangement 10 is made at least partially of a soft-elastic material with a Shore A hardness according to DIN EN ISO 868:2003-10 of about 40 to 80, preferably 50 to 75, that the clamping device 8 encompasses at least one free end 51 of at least one end face 5 or at least one free end 61 of at least one bearing plate 6.

[0048] In this embodiment, the profile arrangement 10 for a laundry treatment machine 1 is designed such that the base 11 of the profile arrangement 10 is at least partially made of the soft-elastic material thermoplastic elastomer based on olefins (TPE) with a Shore A hardness according to DIN EN ISO 868:2003-10 of approximately 63,

[0049] The profile arrangement 10 for a laundry treatment machine 1 is further designed such that the clamping device 8 of the sealing arrangement 10 seals around at least one free end 51 of at least one end face 5. However, it is also within the scope of the invention that the clamping device 8 of the sealing arrangement 10 seals around at least one free end 61 of at least one bearing plate 6.

[0050] Furthermore, the profile arrangement 10 for a laundry treatment machine 1 is designed such that the profile arrangement 10 is operatively connected via the at least one sealing element 7 to at least one free end 61 of at least one bearing plate 6. It is also within the scope of the invention that the profile arrangement 10 for a laundry treatment machine 1 is operatively connected via the at least one sealing element 7 to at least one free end 51 of at least one end plate 5.

[0051] The profile arrangement 10 for a laundry treatment machine 1 is designed such that the profile arrangement 10 for a laundry treatment machine 1 seals at least one free end 51 of at least one end face 5 via the at least one sealing element 7. Furthermore, it is possible that the profile arrangement 10 for a laundry treatment machine 1 seals at least one free end 61 of at least one bearing plate 6 via the at least one sealing element 7.

[0052] Furthermore, the profile arrangement 10 for a laundry treatment machine 1 is designed such that the coefficient of friction µ between the profile arrangement 10 and at least one free end 51 of at least one end face 5 or at least one free end 61 of at least one bearing shield 6 is a maximum of 0.20, preferably a maximum of 0.15, particularly preferably a maximum of 0.12, measured in accordance with DIN EN ISO 8295:2004-10.

[0053] Within the scope of the invention is also the fact that the coefficient of friction µ between the profile arrangement 10 for a laundry treatment machine 1 and at least one free end 61 of at least one bearing shield 6 is a maximum of 0.20, preferably a maximum of 0.15, particularly preferably a maximum of 0.12, measured in accordance with DIN EN ISO 8295:2004-10.

[0054] In this embodiment, the profile arrangement 10 for a laundry treatment machine 1 is designed such that the coefficient of friction µ between the profile arrangement 10 and at least one free end 51 of at least one end face 5 or at least one free end 61 of at least one bearing plate 6 is approximately 0.17, measured in accordance with DIN EN ISO 8295:2004-10.

[0055] The profile arrangement 10 for a laundry treatment machine 1 is also designed such that the mechanical power for rotation (P) of the washing drum 2 with at least one profile arrangement 10, measured at a drive shaft in the longitudinal axis 4 of the laundry treatment machine 1, is a maximum of 25 W, preferably a maximum of 20 W, particularly preferably a maximum of 15 W, determined from the product of torque (M) and angular velocity (ω) about the longitudinal axis 4, according to the formula P=M*ω.

[0056] Furthermore, the profile arrangement 10 for a laundry treatment machine 1 in this embodiment is designed such that the base 11 of the profile arrangement 10 is integrally connected to the sealing element 7 and / or the clamping device 8.

[0057] Furthermore, the profile arrangement 10 for a laundry treatment machine 1 is designed such that the sealing element 7 and / or the clamping device 8 of the profile arrangement 10 is at least partially made of a polymeric material with a Shore D hardness according to DIN EN ISO 868:2003-10 of about 40 to 80, preferably 50 to 70.

[0058] In this embodiment, the profile arrangement 10 for a laundry treatment machine 1 is designed such that the sealing element 7 of the profile arrangement 10 is made of the polymeric material polyethylene (PE) with a Shore D hardness according to DIN EN ISO 868:2003-10 of approximately 63.

[0059] In this embodiment, the profile arrangement 10 for a laundry treatment machine 1 is further designed such that the clamping device 8 of the profile arrangement 10 is made of the polymeric material polypropylene (PP) with a Shore D hardness of approximately 60 according to DIN EN ISO 868:2003-10.

[0060] In the Fig. Figure 4 shows a perspective view of a profile arrangement 10 for a laundry treatment machine.

[0061] The profile arrangement 10 for a laundry treatment machine has at least one base 11, at least one sealing element 7 and at least one clamping device 8.

[0062] The base 11 of the profile arrangement 10 is connected in one piece and / or by material bonding and / or by force bonding to the sealing element 7 and / or the clamping device 8.

[0063] In this embodiment, the base 11 of the profile arrangement 10 is integrally connected to the clamping device 8 and to the sealing element 7 in a material-bonded manner.

[0064] In this embodiment, the clamping device 8 of the profile arrangement 10 has a cross-section approximately three-quarters circular. The clamping device 8 is made of the polymeric material polyamide (PA) with a Shore D hardness of approximately 70 according to DIN EN ISO 868:2003-10.

[0065] In this embodiment, the sealing element 7 of the profile arrangement 10 is made of the polymeric material polyethylene (PE) with a Shore D hardness of approximately 55 according to DIN EN ISO 868:2003-10.

[0066] Furthermore, the profile arrangement 10 is designed such that the clamping device 8 and / or the base 11 and / or the sealing element 7 has at least one recess 9.

[0067] In this embodiment, the profile arrangement 10 is designed such that the base 11 and the sealing element 7 have recesses 9.

[0068] In this embodiment, the recesses 9 in the base 11 and the sealing element 7 of the profile arrangement 10 are approximately semicircular in cross-section.

[0069] Furthermore, the recesses 9 in the base 11 and the sealing element 7 of the profile arrangement 10 are arranged approximately equidistantly from each other in this embodiment.

[0070] In the Fig. Figure 5 shows a perspective view of another profile arrangement 10 for a laundry treatment machine.

[0071] The profile arrangement 10 for a laundry treatment machine has at least one base 11, at least one sealing element 7 and at least one clamping device 8.

[0072] The base 11 of the profile arrangement 10 is connected in one piece and / or by material bonding and / or by force bonding to the sealing element 7 and / or the clamping device 8.

[0073] In this embodiment, the base 11 of the profile arrangement 10 is materially bonded, for example by a joining process such as gluing, welding and the like, to the clamping device 8, and force-fitted to the sealing element 7.

[0074] In this embodiment, the clamping device 8 of the profile arrangement 10 has an approximately semicircular cross-section. Furthermore, in this embodiment, the clamping device 8 of the profile arrangement 10 is made of the polymeric material polypropylene with a Shore D hardness of approximately 80 according to DIN EN ISO 868:2003-10.

[0075] In this embodiment, the sealing element 7 of the profile arrangement 10 is made of the polymeric material polyethylene with a Shore D hardness of approximately 45 according to DIN EN ISO 868:2003-10.

[0076] Furthermore, the profile arrangement 10 is designed such that the clamping device 8 and / or the base 11 and / or the sealing element 7 has at least one recess 9.

[0077] In this embodiment, the profile arrangement 10 is designed such that the base 11, the sealing element 7 and the clamping device 8 each have recesses 9.

[0078] In this embodiment, the recesses 9 in the base 11 and the sealing element 7 of the profile arrangement 10 are approximately triangular in cross-section.

[0079] Furthermore, the recesses 9 in the base 11 and the sealing element 7 of the profile arrangement 10 are arranged approximately equidistantly from each other in this embodiment.

[0080] In this embodiment, the recesses 9 in the clamping device 8 of the profile arrangement 10 are approximately prismatic. Furthermore, the recesses 9 in the clamping device 8 of the profile arrangement 10 are arranged approximately equidistant from one another. QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] DE 8214637 U1

[0005] Cited non-patent literature

[0000] DIN EN ISO 868:2003-10 of about 40 to 80 [0011, 0026, 0057] DIN EN ISO 8295:2004-10

[0017] DIN EN ISO 868:2003-10 of about 63 [0048, 0058] DIN EN ISO 868:2003-10 [0059, 0065, 0074, 0075]

Claims

[1] Profile arrangement (10) for a laundry treatment machine (1) with a rotating washing drum (2) with a drum shell (3) which is provided with a front and / or rear end plate (5) viewed in the direction of the longitudinal axis (4) of the washing drum (2), wherein at least one free end (51) of at least one end plate (5) is spaced apart from at least one free end (61) of at least one bearing plate (6), is rotatably arranged about the longitudinal axis (4) with an interposed profile arrangement (10), wherein the profile arrangement (10) is made of a polymeric material, wherein the profile arrangement (10) has at least one base (11), and wherein the profile arrangement (10) is operatively connected with the at least one free end (61) of at least one bearing plate (6) or the at least one free end (51) of at least one end plate (5),that the base (11) is operatively connected via at least one clamping device (8) at least partially to the at least one free end (51) of at least one end face (5) or the at least one free end (61) of at least one bearing shield (6), that the base (11) of the profile arrangement (10) is made at least partially of a soft-elastic material with a Shore A hardness according to DIN EN ISO 868:2003-10 of about 40 to 80, preferably 50 to 75, that the clamping device (8) encompasses at least one free end (51) of at least one end face (5) or at least one free end (61) of at least one bearing shield (6). [2] Profile arrangement (10) according to claim 1, characterized by that the clamping device (8) of the sealing arrangement (10) seals around at least one free end (51) of at least one end face (5) or at least one free end (61) of at least one bearing shield (6). [3] Profile arrangement (10) according to one of the preceding claims, characterized by , that the profile arrangement (10) is operatively connected via the at least one sealing element (7) with at least one free end (61) of at least one bearing shield (6) or at least one free end (51) of at least one end face (5). [4] Profile arrangement (10) according to one of the preceding claims, characterized by , that the profile arrangement (10) seals at least one free end (51) of at least one end face (5) or at least one free end (61) of at least one bearing shield (6) via the at least one sealing element (7). [5] Profile arrangement (10) according to one of the preceding claims, characterized by, that the coefficient of friction µ between the profile arrangement (10) and at least one free end (51) of at least one end face (5) or at least one free end (61) of at least one bearing shield (6) is a maximum of 0.20, preferably a maximum of 0.15, particularly preferably a maximum of 0.12, measured in accordance with DIN EN ISO 8295:2004-10. [6] Profile arrangement (10) according to one of the preceding claims, characterized by , that the mechanical power for rotation (P) of the washing drum (2) with at least one profile arrangement (10), measured at a drive shaft in the longitudinal axis (4) of the laundry treatment machine (1), is a maximum of 25 W, preferably a maximum of 20 W, particularly preferably a maximum of 15 W, determined from the product of torque (M) and angular velocity (ω) about the longitudinal axis (4), according to the formula P=M*ω. [7] Profile arrangement (10) according to one of the preceding claims, characterized by, that at a rotational speed n determined according to the formula n= ω / 2π of approximately 50 rpm or 0.83 rpm, the power loss due to friction of the profile arrangement 10 on the at least one bearing shield is only about 2 to 5 W, preferably 2 to 4 W, determined according to the formula [8] Profile arrangement (10) according to one of the preceding claims, characterized by , that the base (11) of the profile arrangement (10) is integrally and / or materially bonded and / or force-fit connected to the sealing element (7) and / or the clamping device (8). [9] Profile arrangement (10) according to one of the preceding claims, characterized by , that the clamping device (8) and / or the base (11) and / or the sealing element (7) of the profile arrangement (10) has at least one recess (9). [10] Profile arrangement (10) according to any of the preceding claims, characterized by, that the recess (9) of the clamping device (8) and / or the base (11) and / or the sealing element (7) of the profile arrangement (10) is in cross-section approximately prismatic, semicircular, round, triangular and the like. [11] Profile arrangement (10) according to one of the preceding claims, characterized by , that the sealing element (7) and / or the clamping device (8) of the profile arrangement (10) is at least partially made of a polymeric material with a Shore D hardness according to DIN EN ISO 868:2003-10 of about 40 to 80, preferably 50 to 70. [12] Laundry treatment machine (1) with at least one profile arrangement (10) according to at least one of the preceding claims.

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