Household dishwasher

Abstract

The invention relates to a domestic dishwasher (1) having: a washing container (2); an object-to-be-cleaned receptacle (12-14) for accommodating an object to be cleaned, the object-to-be-cleaned receptacle (12-14) being displaceable out of the cleaning container (2) in a withdrawal direction (A) and into the cleaning container (2) in an insertion direction (E) oriented opposite the withdrawal direction (A); the spraying arm (16) is rotatably mounted on the to-be-cleaned object accommodating part (12-14) and is used for supplying washing liquid and / or clean water (F) to the to-be-cleaned objects; and a spray arm rotating device (31) attached to the object-to-be-cleaned holder (12-14), the spray arm rotating device (31) having a moving element (32) which is mounted movably on the object-to-be-cleaned holder (12-14) and which is supported in or on the cleaning container (2) when the object-to-be-cleaned holder (12-14) is moved into the cleaning container (2) in the insertion direction (E), in this way, the spraying arm (16) rotates.

Description

Technical Field

[0001] The invention relates to a household dishwasher. Background Art

[0002] A dishwasher comprises a cleaning container in which objects to be cleaned may be accommodated. Such a dishwasher also comprises at least one object to be cleaned accommodating portion, which can be moved out of the cleaning container and moved back into the cleaning container. The object to be cleaned accommodating portion is suitable for accommodating objects to be cleaned, and the objects to be cleaned use a rotatably mounted spray arm to supply washing liquid and / or clean water to the objects to be cleaned so as to clean the objects to be cleaned. If a user carelessly loads the object to be cleaned accommodating portion, the objects to be cleaned may obstruct the spray arm. In order to identify such obstruction, for example, the user can manually rotate the spray arm. However, this is very time-consuming. In addition, there is a risk that the user may soil his clothes or hands. Therefore, it is desirable to be able to easily identify such possible obstruction so that appropriate countermeasures can be taken.

[0003] WO 2013 / 064394 A1 describes a dishwasher having a cleaning container and a storage portion for objects to be cleaned contained in the cleaning container. A rotatable spray arm is provided below the storage portion for objects to be cleaned. The storage portion for objects to be cleaned is in a grid shape and is composed of a large number of interconnected metal wires. The storage portion for objects to be cleaned has at least one metal wire, which is vertically oriented from the bottom of the storage portion for objects to be cleaned in the direction of the spray arm. When the storage portion for objects to be cleaned is moved into the cleaning container, the metal wire abuts against the spray arm, whereby the spray arm starts to rotate. Therefore, a user can easily see whether the spray arm that starts to rotate collides with the objects to be cleaned contained in the storage portion for objects to be cleaned. If a collision occurs or is expected to occur, the objects to be cleaned can be rearranged accordingly, thereby avoiding the collision between the objects to be cleaned and the spray arm.

[0004] WO 2021 / 078718 A1 shows a dishwasher having: a housing; a washing chamber arranged in the housing, in which a washing process is performed; at least one washing basket arranged in the washing chamber for loading dishes to be washed, and at least one spray arm, which rotates around itself and introduces water into the washing chamber to wash the dishes. The dishwasher also includes a control mechanism, which is designed to convert the sliding movement of at least one washing basket into the rotation of at least one spray arm. Summary of the invention

[0005] Against this background, it is an object of the present invention to provide an improved domestic dishwasher.

[0006] Therefore, a household dishwasher is proposed, comprising: a cleaning container; a to-be-cleaned object containing portion for containing to-be-cleaned objects, wherein the to-be-cleaned object containing portion can be moved out of the cleaning container along a withdrawal direction and moved into the cleaning container along an insertion direction oriented opposite to the withdrawal direction; a spray arm rotatably mounted on the to-be-cleaned object containing portion, the spray arm being used to supply washing liquid and / or clean water to the to-be-cleaned objects; and a spray arm rotating device attached to the to-be-cleaned object containing portion, wherein the spray arm rotating device has a moving element, the moving element being movably mounted on the to-be-cleaned object containing portion, and when the to-be-cleaned object containing portion is moved into the cleaning container along the insertion direction, the moving element is supported in or on the cleaning container to enable the spray arm to perform a rotational movement.

[0007] Since the spray arm rotating device is provided and the spray arm is rotated, it is easy to identify whether the spray arm is at risk of being blocked by the objects to be cleaned when the object receiving portion to be cleaned is moved into the cleaning container. The user does not need to directly reach into the cleaning container to manually move the cleaning container. This simplifies the operability and increases the ease of use of the household dishwasher.

[0008] The cleaning container is preferably a rectangular parallelepiped or box-shaped. The door is preferably pivotally attached to the cleaning container. The cleaning container and the door together enclose a cleaning space of the household dishwasher. The cleaning space is defined or surrounded by the cleaning container and the door attached to the cleaning container. Therefore, the cleaning container and the door determine the boundary or spatial range of the cleaning area. The cleaning container preferably includes a bottom plate, a top plate arranged opposite to the bottom plate, a rear wall arranged opposite to the closed door, and two side walls arranged opposite to each other. The extraction direction is particularly from the rear wall toward the door, particularly the closed door. Therefore, the insertion direction is directed from the door, particularly the closed door toward the rear wall.

[0009] The spray arm is preferably movable relative to the cleaning container. The spray arm is attached or mounted on the to-be-cleaned object receiving portion. The spray arm preferably comprises a plurality of nozzles or spray nozzles, by means of which the to-be-cleaned objects in the to-be-cleaned object receiving portion are wetted with detergent and / or clean water so as to clean them. The spray arm can also have a driving nozzle, from which detergent and / or clean water are ejected laterally to rotate the spray arm. In the case where the spray arm is driven by means of the detergent and / or clean water ejected, the spray arm is passively driven. Therefore, the spray arm can be referred to as a passive spray arm. Alternatively, the spray arm can also be actively driven. In this case, "active" means that the spray arm has a separate drive element, such as a drive element in the form of an electric motor and / or a gear. A plurality of spray arms can be provided.

[0010] A domestic dishwasher can have a plurality of to-be-cleaned object receiving parts. Specifically, the domestic dishwasher has a lower to-be-cleaned object receiving part or a lower basket, an upper to-be-cleaned object receiving part or an upper basket and a cutlery drawer. Preferably, the spray arm and the spray arm rotating device are attached to the upper to-be-cleaned object receiving part or the upper basket. However, the spray arm and the spray arm rotating device can also be attached to any other to-be-cleaned object receiving part. However, it is assumed hereinafter that the to-be-cleaned object receiving part to which the spray arm and the spray arm rotating device are attached is the upper to-be-cleaned object receiving part or the upper basket. Therefore, the term "to-be-cleaned object receiving part" can also be replaced by the term "upper basket" hereinafter.

[0011] The moving element is in particular rod-shaped. The moving element can be a push element or can be indicated as such. In this case, the moving element is preferably suitable for performing a push movement. The moving element can also be a tension element or can be indicated as such. In this case, the moving element is preferably suitable for performing a pull movement. The moving element can also be a combined push-pull element or can be indicated as such. In this case, the moving element is preferably suitable for performing both a pull movement and a push movement.

[0012] The moving element is mounted on the receiving part of the object to be cleaned so that it can be moved in the extraction direction and in the insertion direction. The fact that the moving element is "supported" in or on the cleaning container means in the present case that when the cleaning container is moved into the cleaning container, the moving element contacts the cleaning container, in particular the rear wall of the cleaning container, whereby the moving element moves linearly relative to the cleaning container receiving part so as to interact with the spray arm, thereby rotating the spray arm. Once the moving element contacts the rear wall, the moving element moves in the extraction direction.

[0013] In this case, "in or on the cleaning container" means in particular that the moving element can be supported on any component accommodated in the cleaning container on the one hand, and on the other hand, the moving element can also be supported directly or immediately on the cleaning container, for example on the rear wall. Particularly preferably, when the receptacle for the objects to be cleaned is moved into the cleaning container in the insertion direction, the moving element is supported on the rear wall of the cleaning container in order to cause the spray arm to perform a rotational movement.

[0014] The movement element and the spray arm form a retrofit component or a retrofit assembly. Thus, a domestic dishwasher can be retrofitted with the movement element and the spray arm. The movement element and the spray arm can be part of a spray arm arrangement of a domestic dishwasher. The spray arm arrangement can be retrofitted.

[0015] The fact that the spray arm is "rotatably mounted" on the receiving portion for objects to be cleaned means in this case that the spray arm is operatively connected or coupled to the receiving portion for objects to be cleaned so that the spray arm can rotate relative to the receiving portion for objects to be cleaned. For this purpose, the spray arm can, for example, be rotatably mounted directly on the receiving portion for objects to be cleaned. Alternatively, a supply pipe for supplying washing liquid and / or clean water to the spray arm can be mounted on the receiving portion for objects to be cleaned. In this case, the spray arm is rotatably mounted on the supply pipe. Therefore, the spray arm is indirectly coupled or operatively connected to the receiving portion for objects to be cleaned via the supply pipe.

[0016] According to one embodiment, the spray arm rotating device comprises: an engaging element attached to the spray arm, the engaging element extending out of the spray arm on the top surface in the direction of the receiving portion for the object to be cleaned; and a mating engaging element attached to the moving element, the mating engaging element extending out of the receiving portion for the object to be cleaned in the direction of the spray arm on the bottom surface, wherein when the receiving portion for the object to be cleaned is moved into the cleaning container along the insertion direction, the mating engaging element is engaged in the engaging element in a form-fitting manner so that the spray arm performs a rotational movement.

[0017] A positive connection or a positive engagement is achieved by two connecting fittings, one inside the other or one behind the other, in this case a mating engagement element and an engagement element. Preferably, the mating engagement element is attached to the end of the moving element facing away from the rear wall. The mating engagement element is preferably positioned obliquely relative to the moving element.

[0018] According to a further embodiment, the mating engagement element is an elastically deformable component, in particular a leaf spring, a plastic component or the like.

[0019] The elastically deformable component can be any spring. The component preferably deforms in a spring-elastic manner. The mating engagement element can be made of spring steel, for example. Alternatively, the mating engagement element can also be made of plastic material.

[0020] According to a further embodiment, the mating engagement element slides on the engagement element when the receptacle for cleaning objects is moved out of the cleaning container in the pull-out direction, wherein it deforms the mating engagement element in a spring-elastic manner.

[0021] Thereby, even when the receiving portion for the object to be cleaned is moved out of the cleaning container, the spray arm can be blocked from rotating.

[0022] According to another embodiment, the engagement element has a plurality of plate-shaped engagement wings, between which the mating engagement element engages in a form-fitting manner, so that the spray arm performs a rotational movement when the object receiving portion to be cleaned is moved into the cleaning container along the insertion direction.

[0023] The number of the engaging wings is arbitrary. For example, twelve such engaging wings are provided. However, less than or more than twelve engaging wings may also be provided. In this article, "plate-like" may mean that the engaging wings have a constant or consistent thickness or wall thickness.

[0024] According to another embodiment, the engagement wings are arranged evenly distributed around the axis of rotation of the spray arm.

[0025] The spray arm is mounted on the cleaning container receiving portion, in particular the spray arm can rotate around the rotation axis. Preferably, a supply pipe is attached to the receiving portion for the object to be cleaned, via which the washing liquid and / or clean water is supplied to the spray arm. The spray arm is mounted on the supply pipe so that the spray arm can rotate around its rotation axis.

[0026] According to a further embodiment, the engagement wings extend radially outwards from the axis of rotation.

[0027] In the present case, “radially outwardly” means in particular in a radial direction which is perpendicular to the axis of rotation of the spray arm and is oriented away from the axis of rotation of the spray arm.

[0028] According to a further embodiment, the spray arm has a wing plate, to which the engagement wings are attached, wherein the engagement wings extend radially beyond the wing plate, and wherein the engagement wings are connected to one another only by means of the wing plate.

[0029] The wing and the engaging wing together form the engaging element. The wing is formed integrally with the spray arm, in particular with the same material.

[0030] "Integral" or "one-piece" means in the present case that the spray arm and the wing are not composed of different sub-components, but form a common component. "With the same material" here means that the wing and the spray arm are made completely of the same material. For example, the joining element and the spray arm can be designed as a plastic injection molded component. The spray arm preferably has two half shells welded together. The wing and the joining wing are connected to each other in one piece, in particular with the same material. The wing is in particular disc-shaped and is configured to be rotationally symmetrical about the central axis. The joining wing extends out of the top of the wing in the direction of the receiving portion for the object to be cleaned. The joining wing is a part of the joining element that is separated from each other. The joining wings are preferably not in contact with each other and are not directly connected to each other. In particular, the joining wings are only indirectly connected to each other by means of the wing.

[0031] According to a further embodiment, the spray arm swivel device has a support element which is connected in a form-fitting manner to a support element of the receptacle for the items to be cleaned and on which the movement element is movably mounted.

[0032] For example, the carrier element is locked, snapped or clamped to the to-be-cleaned object receiving portion. A plurality of carrier elements may be provided. For example, three such carrier elements are provided. In particular, a first carrier element, a second carrier element and a third carrier element are provided. The moving element is movably mounted on each of these carrier elements.

[0033] According to a further embodiment, the spray arm swivel device has a spring element which preloads the movement element in the direction of cleaning the container.

[0034] In particular, the elastic element preloads the push element in the direction of the rear wall. The elastic element is in particular a cylindrical spring. The elastic element can be a compression spring. The fact that the elastic element "preloads" the moving element in the direction of the rear wall means that in the present case, the elastic element moves the moving element in the direction of the rear wall as soon as the moving element no longer has any contact with the washing container, in particular with the rear wall.

[0035] According to a further embodiment, the elastic element is prestressed when the movement element is supported in or on the washing container.

[0036] Specifically, when the push element is mounted on the rear wall, the elastic element is prestressed. In particular, when the moving element is supported on the cleaning container, in particular on the rear wall, the elastic element is compressed. Once the moving element is no longer in contact with the cleaning container, in particular with the rear wall, the elastic element moves the moving element in the direction of the rear wall and thus in the insertion direction.

[0037] According to a further embodiment, the spray arm rotation device has a transmission element attached to the movement element, wherein the elastic element is arranged between the carrier element and the transmission element.

[0038] In particular, the elastic element is arranged between the first load-bearing element and the transmission element. The transmission element is fixedly connected to the moving element. For example, the transmission element is screwed to the moving element. The transmission element is preferably annular. The elastic element is located between the transmission element fixedly mounted on the moving element and one of the load-bearing elements, in particular the first load-bearing element. The moving element can be moved in a linear manner relative to the load-bearing element, in particular the second load-bearing element or the plurality of load-bearing elements.

[0039] According to a further embodiment, the transmission element is movably mounted on the carrier element.

[0040] Preferably, the transmission element serves as a torsion-proof device for the moving element. Thus, the transmission element is movably arranged on the carrier element, so that the transmission element cannot rotate relative to the carrier element.

[0041] According to a further embodiment, the moving element is guided through the elastic element.

[0042] This means in particular that the moving element is arranged within the elastic element. Thus, the elastic element circumferentially surrounds the moving element.

[0043] According to a further embodiment, the spray arm swivel device has a damping element attached to the moving element, wherein the damping element is arranged between the moving element and the washing container.

[0044] In particular, the buffer element is arranged between the moving element and the rear wall. Preferably, the moving element is attached to the end of the moving element facing away from the mating engagement element. The buffer element can be, for example, a cover or the like inserted in the moving element. For example, the buffer element is made of rubber or an elastomer such as a thermoplastic elastomer (TPE).

[0045] Further possible embodiments of the domestic dishwasher also include combinations of features or embodiments described above or below with respect to exemplary embodiments not explicitly mentioned. A person skilled in the art will also add various aspects as improvements or supplements to the corresponding basic form of the domestic dishwasher.

[0046] Further advantageous embodiments and aspects of the domestic dishwasher are the subject matter of the dependent claims and the exemplary embodiments of the domestic dishwasher described below.A domestic dishwasher will be explained in more detail below by means of preferred embodiments and with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 shows a schematic perspective view of an embodiment of a domestic dishwasher;

[0048] Figure 2 Shown according to Figure 1 A schematic perspective view of an embodiment of a spray arm arrangement of a domestic dishwasher;

[0049] Figure 3 Shown according to Figure 2 A schematic side view of a spray arm arrangement;

[0050] Figure 4 Shown according to Figure 2 A schematic top view of a spray arm device;

[0051] Figure 5 Shown according to Figure 1 A schematic perspective view of an embodiment of a to-be-cleaned object receiving portion of a household dishwasher;

[0052] Figure 6 Shown according to Figure 5 Another schematic perspective view of a to-be-cleaned object receiving portion of ; and

[0053] Figure 7 Shown according to Figure 5 Another schematic perspective view of a to-be-cleaned object receiving portion of a washing machine.

[0054] In the figures, identical or functionally identical elements are provided with the same reference signs unless stated otherwise. DETAILED DESCRIPTION

[0055] Figure 1 A schematic perspective view of an embodiment of a domestic dishwasher 1 is shown. The domestic dishwasher 1 comprises a washing container 2 which can be closed by a door 3, in particular in a watertight manner. For this purpose, a sealing device can be provided between the door 3 and the washing container 2. The washing container 2 is preferably a cuboid. The washing container 2 can be arranged in the housing of the domestic dishwasher 1. The washing container 2 and the door 3 can form a washing space 4 for washing items to be washed.

[0056] exist Figure 1 The middle door 3 is shown in its open position. The door 3 can be closed or opened by pivoting about a pivot axis 5 arranged at the lower end of the door 3. With the help of the door 3, the loading opening 6 of the washing container 2 can be closed or opened. The washing container 2 has a bottom plate 7, a top plate 8 arranged opposite the bottom plate 7, a rear wall 9 arranged opposite the closed door 3, and two side walls 10, 11 arranged opposite each other. The bottom plate 7, the top plate 8, the rear wall 9 and the side walls 10, 11 can be made of, for example, stainless steel plates. Alternatively, for example, the bottom plate 7 can be made of a plastic material.

[0057] The domestic dishwasher 1 also has at least one to-be-cleaned object receiving portion 12 to 14. Preferably, several, for example three to-be-cleaned object receiving portions 12 to 14 can be provided, wherein the to-be-cleaned object receiving portion 12 can be a lower to-be-cleaned object receiving portion or a lower basket, the to-be-cleaned object receiving portion 13 can be an upper to-be-cleaned object receiving portion or an upper basket, and the to-be-cleaned object receiving portion 14 can be a cutlery drawer.

[0058] like Figure 1 As shown, the objects to be cleaned 12 to 14 are arranged one above the other in the cleaning container 2. Each of the object-to-be-cleaned receiving portions 12 to 14 can be selectively moved into or out of the cleaning container 2. Specifically, each of the object-to-be-cleaned receiving portions 12 to 14 can be inserted or moved into the cleaning container 2 along an insertion direction E, and can be pulled out or moved out of the cleaning container 2 along an extraction direction A in a direction opposite to the insertion direction E.

[0059] Figure 2 A schematic perspective view of an embodiment of a spray arm arrangement 15 for a domestic dishwasher 1 is shown. Figure 3 A schematic side view of a spray arm arrangement 15 is shown. Figure 4 A schematic top view of a spray arm arrangement 15 is shown. Figures 2 to 4 .

[0060] The spray arm device 15 is arranged inside the washing container 2. Specifically, the spray arm device 15 is connected to one of the to-be-cleaned object receiving parts 12 to 14, in particular to the to-be-cleaned object receiving part 13. As mentioned above, the to-be-cleaned object receiving part 13 is the upper basket of the domestic dishwasher 1 and can therefore also be denoted as the upper basket of the domestic dishwasher 1. With the help of the spray arm device 15, washing liquid and / or fresh water F ( Figure 3 ) is supplied to the object to be cleaned in the cleaning space 4. The spray arm device 15 is a retrofit component or a retrofit assembly.

[0061] The spray arm device 15 includes a spray arm 16, which is installed in the to-be-cleaned object receiving portion 13 ( Figure 3 ) so that the spray arm can rotate about the rotation axis 17. The spray arm 16 comprises a first arm portion 18 and a second arm portion 19. The arms 18, 19 are connected to each other. A plurality of nozzles 20 to 25 are arranged on the arms 18, 19. The nozzles 20 to 25 are oriented in the direction of the receiving portion 13 for objects to be cleaned. However, it is also possible to provide nozzles (not shown) that are oriented downwards away from the receiving portion 13 for objects to be cleaned.

[0062] During operation of the spray arm device 15, washing liquid and / or clean water F are sprayed from the nozzles 20 to 25 in order to wet the objects to be cleaned with the washing liquid and / or clean water F. In addition, the outermost nozzles 20, 25 can be used as drive nozzles. For this purpose, the nozzles 20, 25 are preferably arranged obliquely with respect to the rotation axis 17, so that the sprayed washing liquid and / or clean water F causes the spray arm 16 to rotate about the rotation axis 17.

[0063] The spray arm 16 comprises an inlet opening 26, through which washing liquid and / or clean water F flows into the spray arm 16. The spray arm 16 also comprises a coupling element 27 attached thereto. The coupling element 27 has a wing 28, which is formed integrally with the spray arm 16, in particular of the same material. In the present case, "integrally" or "one-piece" means that the wing 28 and the spray arm 16 are not formed of subcomponents that are different from each other, but that the wing 28 and the spray arm 16 form a common component. In the present case, "of the same material" means that the wing 28 and the spray arm 16 are made completely of the same material. Alternatively, the coupling element 27 with the wing 28 can also be a component separate from the spray arm 16 and, for example, locked or snapped to the spray arm 16.

[0064] The wing plate 28 is disc-shaped. In particular, the wing plate 28 is designed to be rotationally symmetrical about the rotation axis 17. Figures 2 to 4In the direction of the wing 28, a plurality of plate-like engaging wings 29 extend over the top surface of the wing 28, only one of which is provided with a reference numeral. Like the wing 28, the engaging wing 29 is part of the engaging element 27. This means in particular that the wing 28 and the engaging wing 29 together form the engaging element 27. The number of engaging wings 29 is arbitrary. For example, twelve such engaging wings 29 are provided.

[0065] The engaging wings 29 are evenly distributed around the axis of rotation 17. The engaging wings 29 extend radially outwards from the axis of rotation 17. In the present case, "radially outwards" means in a radial direction R, which is perpendicular to the axis of rotation 17 and is oriented away from the axis of rotation. The engaging wings 29 themselves preferably do not touch each other. This means in particular that the engaging wings 29 are not directly connected to each other. However, the engaging wings 29 are indirectly connected to each other via the wing plate 28. This means in particular that all engaging wings 29 are connected to the wing plate 28 in one piece, in particular with the same material.

[0066] In the direction of the inlet opening 26, the engaging wings 29 end in front of a wall 30 which turns rotationally symmetrically about the axis of rotation 17. This means in particular that the engaging wings 29 do not touch the wall 30. Thus, viewed in the radial direction R and against the radial direction R, adjacent engaging wings 29 form an open channel. The wall 30 has a larger diameter than the inlet opening 26. Viewed in the radial direction R, the engaging wings 29 extend radially or transversely beyond the wing plate 28.

[0067] In addition to the spray arm 16, the spray arm device 15 also includes a spray arm rotating device 31, which is configured to set the spray arm 16 to rotate around the rotation axis 17 when no washing liquid and / or clean water F flows in. Specifically, the spray arm rotating device 31 is configured to rotate the spray arm 16 when the spray arm 16 is not loaded with washing liquid and / or clean water F. The spray arm rotating device 31 is used to rotate the spray arm 16 when the receiving portion 13 for objects to be cleaned is moved into the cleaning container 2 along the insertion direction E.

[0068] The spray arm rotating device 31 includes a moving element 32. The moving element 32 is mounted on the to-be-cleaned object receiving portion 13 in a linearly movable manner. The moving element 32 is rod-shaped. For example, the moving element 32 is a steel wire. However, the moving element 32 may also be a plastic component. The moving element 32 may have a circular cross section. However, in contrast thereto, the moving element 32 may also have any other cross section, such as a cross-shaped cross section.

[0069] When the cleaning container 13 is moved into the cleaning container 2 along the insertion direction E, the moving element 32 is supported on the cleaning container 2, in particular, on the rear wall 9 of the cleaning container 2. In other words, when the to-be-cleaned object receiving portion 13 is moved into the cleaning container 2, the moving element 32 contacts the rear wall 9. For this purpose, a buffer element 33 is attached to the end of the moving element 32 facing the rear wall 9. The buffer element 33 can be, for example, a cover made of an elastic material, which is inserted onto the moving element 32. The buffer element 33 can be elastically deformable.

[0070] The end of the moving element 32 facing away from the damping element 33 is provided with a mating engagement element 34 corresponding to the engagement element 27. The mating engagement element 34 is preferably a leaf spring. The mating engagement element 34 is designed to engage in a form-fitting manner in the engagement element 27 so that the spray arm 16 rotates or rotates about the rotation axis 17 when the damping element 33 contacts the rear wall 9. The form-fit connection or form-fit engagement is achieved by two connecting mating parts, one inside the other or one behind the other, in this case the mating engagement element 34 and the engagement element 27. The moving element 32 is placed in an offset position to the side with respect to the rotation axis 17. The mating engagement element 34 is designed to contact at least one engagement wing 29.

[0071] The spray arm rotating device 31 comprises a plurality of bearing elements 35 to 37, on which the motion element 32 is mounted so as to move in a linear manner. The number of the bearing elements 35 to 37 is arbitrary. For example, three bearing elements 35 to 37 are provided. In particular, a first carrier element 35, a second carrier element 36 and a third carrier element 37 are provided. However, at least one such bearing element 35 to 37 is provided. The bearing elements 35 to 37 are connected to the to-be-cleaned object receiving portion 13 in a form-fitting manner. For example, the bearing elements 35 to 37 can be locked or snapped into the to-be-cleaned object receiving portion 13. By means of the bearing elements 35 to 37, the motion element 32 can be mounted on the to-be-cleaned object receiving portion 13 in a linearly movable manner.

[0072] The spray arm rotation device 31 further comprises an elastic element 38. The elastic element 38 is a cylindrical spring. In particular, the elastic element 38 is a compression spring. The movement element 32 is guided through the elastic element 38. This means in particular that the movement element 32 is arranged in the elastic element 38. The elastic element 38 is placed so that it preloads the movement element 32 in the direction of the rear wall 9. This means in particular that the elastic element 38 moves the movement element 32 in the direction of the rear wall 9 as soon as the movement element 32 loses contact with the rear wall 9.

[0073] When the object receiving portion 13 to be cleaned moves into the cleaning container 2, once the moving element 32 or the buffer element 33 contacts the rear wall 9, the elastic element 38 is compressed or further tensioned. Therefore, when the moving element 32 is mounted on the rear wall 9 via the buffer element 33, the elastic element 38 is further pre-tensioned.

[0074] The transmission element 39 is attached to the moving element 32 and is fixedly connected with the moving element 32. The elastic element 38 is placed between the first load-bearing element 35 and the transmission element 39. The transmission element 39 is movably mounted on the second load-bearing element 36. The transmission element 39 is mounted on the second load-bearing element 36 so that the transmission element 39 and the moving element 32 cannot rotate relative to the second load-bearing element 36. Therefore, the transmission element 39 plays an anti-torsion effect. The transmission element 39 can also have a cover covering the elastic element 38 in the direction of the receiving portion 13 of the object to be cleaned.

[0075] Figure 5 A schematic perspective view of the to-be-cleaned object receiving portion 13 is shown. Figure 5 Another schematic perspective view of the washing object receiving space 13 is shown. Figure 7 Another schematic perspective view of the to-be-cleaned object receiving portion 13 is shown. Figures 5 to 7 .

[0076] like Figure 5 As shown, the washing container accommodating portion 13 is basket-shaped and includes a bottom plate 40, a rear wall 41, a front wall 42 and two side walls 43, 44 arranged opposite to each other. The bottom plate 40, the rear wall 41, the front wall 42 and the side walls 43, 44 are in a grid shape. The spray arm rotating device 31 is mounted to the bottom plate 40. For this purpose, the bearing elements 35 to 37 are connected to the bottom plate 40. For this purpose, the bearing elements 35 to 37 can clamp the steel wire of the bottom plate 40 in a form-fitting manner. The bearing elements 35 to 37 can be detachably connected to the bottom plate 40. For example, the bearing elements 35 to 37 are locked to the bottom plate 40 or are clamped or snapped into the bottom plate 40. A supply pipe 45 is also connected to the bottom plate 40, and the washing liquid and / or clean water F are supplied to the spray arm 16 via the supply pipe 45. The spray arm 16 is mounted on the supply pipe 45 so that the spray arm can rotate around the rotation axis 17.

[0077] If the object receiving portion 13 is pulled out along the extraction direction A, Figure 6 As shown, the elastic element 38 then moves the movement element 32 in the direction of the rear wall 9. In this case, the elastically deformable mating engagement element 34 passes over the engagement wing 29 without the spray arm 16 starting to rotate.

[0078] If the to-be-cleaned object receiving portion 13 is Figure 7As shown, the movement element 32 is moved into the washing container 2 in the insertion direction E, and the movement element 32 and the buffer element 33 contact the rear wall 9. The movement element 32 is thereby moved forward in the extraction direction A, wherein the mating engagement element 34 contacts at least one of the engagement wings 29 and rotates the spray arm 16 about the rotation axis 17. Once the spray arm 16 is rotated, the user can see whether the spray arm 16 is blocked by the objects to be cleaned in the washing container 2. If a blockage occurs, the user can rearrange the objects to be cleaned accordingly.

[0079] This makes it easier for the user to check whether the spray arm 16 is blocked. Improved user satisfaction is ensured by error-free washing cycles with always clean and usable items available for washing. Resources are saved by reducing the number of repeated runs due to blocked spray arms 16 and thus unclean items. The spray arm swivel device 31 can be retrofitted into existing domestic dishwashers 1. For this purpose, the spray arm swivel device 31 is attached to the respective receptacle 13 for washing items by means of carrier elements 35 to 37. The spray arm 16 is replaced accordingly so that it has an engagement element 27 as described above.

[0080] Although the present invention has been described using the embodiments, it can be modified in many ways.

[0081] Reference numerals used:

[0082] 1Household dishwasher

[0083] 2. Clean the container

[0084] 3 doors

[0085] 4. Cleaning space

[0086] 5 Pivot axis

[0087] 6 Loading opening

[0088] 7 Bottom Plate

[0089] 8 Top Plate

[0090] 9 Back Wall

[0091] 10 Sidewall

[0092] 11Sidewall

[0093] 12. The part for accommodating objects to be cleaned

[0094] 13. The part for accommodating objects to be cleaned

[0095] 14. The part for accommodating objects to be cleaned

[0096] 15 spray arm device

[0097] 16 spray arms

[0098] 17 Rotation axis

[0099] 18 Arm

[0100] 19 Arm

[0101] 20 Nozzles

[0102] 21 Nozzles

[0103] 22 Nozzles

[0104] 23 Nozzles

[0105] 24 Nozzles

[0106] 25 Nozzles

[0107] 26 entrance openings

[0108] 27Joint elements

[0109] 28 Wing

[0110] 29 Engagement Wing

[0111] 30 walls

[0112] 31 Spray arm rotation device

[0113] 32 motion elements

[0114] 33 cushioning elements

[0115] 34 Mating engagement elements

[0116] 35 load-bearing elements

[0117] 36 load-bearing elements

[0118] 37 load-bearing elements

[0119] 38 Elastic element

[0120] 39 Transmission elements

[0121] 40 bottom plate

[0122] 41 Back wall

[0123] 42 Anterior wall

[0124] 43 Sidewall

[0125] 44 side wall

[0126] 45 Supply pipe

[0127] A Extraction direction

[0128] EInsert direction

[0129] F washing liquid and / or water

[0130] R radial direction.

Claims

1. A household dishwasher (1), comprising: a cleaning container (2); a cleaning object receiving portion (12-14) for receiving objects to be cleaned, wherein: The object-to-be-cleaned storage portion (12-14) can be moved out of the cleaning container (2) along a withdrawal direction (A) and can be moved into the cleaning container (2) along an insertion direction (E) that is opposite to the withdrawal direction (A); a spray arm (16) rotatably mounted on the object-to-be-cleaned storage portion (12-14), the spray arm being used to supply washing liquid and / or clean water (F) to the object-to-be-cleaned storage portion; and a spray arm rotating device (31) attached to the object-to-be-cleaned storage portion (12-14), wherein the spray arm rotating device (31) has a moving element (32) movably mounted on the object-to-be-cleaned storage portion (12-14), and when the object-to-be-cleaned storage portion (12-14) is moved into the cleaning container (2) along the insertion direction (E), the moving element is supported in or on the cleaning container (2) so that the spray arm (16) performs a rotational movement.

2. The household dishwasher according to claim 1, characterized in that: The spray arm rotating device (31) comprises a coupling element (27) attached to the spray arm (16), wherein the coupling element extends out of the spray arm (16) on the top surface in the direction of the to-be-cleaned object receiving portion (12-14); the spray arm rotating device further comprises a matching coupling element (34) attached to the moving element (32), wherein the matching coupling element extends out of the to-be-cleaned object receiving portion (12-14) on the bottom surface in the direction of the spray arm (16), wherein when the to-be-cleaned object receiving portion (12-14) moves into the cleaning container (2) along the insertion direction (E), the matching coupling element (34) is engaged in the coupling element (27) in a form-fitting manner, so that the spray arm (16) performs a rotational movement.

3. The household dishwasher according to claim 2, characterized in that: The mating engagement element (34) is an elastically deformable component, in particular a leaf spring, a plastic component, etc.

4. The domestic dishwasher according to claim 2 or 3, characterized in that: When the to-be-cleaned object receiving portion (12-14) moves out of the cleaning container (2) along a withdrawal direction (A), the matching engagement element (34) slides over the engagement element (27), wherein the matching engagement element (34) is deformed in a spring-elastic manner.

5. The household dishwasher according to any one of claims 2 to 4, characterized in that: The engaging element (27) has a plurality of plate-shaped engaging wings (29), and the matching engaging element (34) is engaged between the plate-shaped engaging wings in a form-fitting manner, so that when the to-be-cleaned object receiving portion (12-14) is moved into the cleaning container (2) along the insertion direction (E), the spray arm (16) performs a rotational movement.

6. The domestic dishwasher according to claim 5, characterized in that: The engagement wings (29) are arranged to be evenly distributed around the rotation axis (17) of the spray arm (16).

7. The domestic dishwasher according to claim 6, characterized in that: The engagement wings (29) extend radially outward from the rotation axis (17).

8. A household dishwasher according to any one of claims 5 to 7, characterized in that: The spray arm (16) has a wing plate (28), to which the engagement wings (29) are attached, wherein the engagement wings (29) extend radially beyond the wing plate (28), and wherein the engagement wings (29) are connected to one another only by means of the wing plate (28).

9. A domestic dishwasher according to any one of claims 1 to 8, characterized in that: The spray arm rotating device (31) has a supporting element (35-37), the supporting element is connected to the to-be-cleaned object receiving portion (12-14) in a form-fitting manner, and the moving element (32) is movably mounted on the supporting element.

10. The domestic dishwasher according to claim 9, characterized in that: The spray arm rotating device (31) has an elastic element (38) which preloads the moving element (32) in the direction of the cleaning container (2).

11. The domestic dishwasher according to claim 10, characterized in that: When the moving element (32) is supported in or on the cleaning container (2), the elastic element (38) is preloaded.

12. The domestic dishwasher according to claim 10 or 11, characterized in that: The spray arm rotating device (31) has a transmission element (39) attached to the moving element (32), wherein the elastic element (38) is arranged between the bearing element (35-37) and the transmission element (39).

13. The domestic dishwasher according to claim 12, characterized in that: The transmission element (39) is movably mounted on the supporting element (35-37).

14. A domestic dishwasher according to any one of claims 10 to 13, characterized in that: The moving element (32) is guided through the elastic element (38).

15. A domestic dishwasher according to any one of claims 1 to 14, characterized in that: The spray arm rotating device (31) has a buffer element (33) attached to the moving element (32), wherein the buffer element (33) is arranged between the moving element (32) and the cleaning container (2).

Images