DE102017206703A1 - Domestic dishwasher - Google Patents

Abstract

The invention relates to a domestic dishwasher (1) with a Spülgutaufnahme (12, 13) and a holding device (15) for holding in the Spülgutaufnahme (12, 13) recorded items (16), wherein the holding device (15) of a drying state (TZ ), in which the holding device (15) is except positive and / or non-positive engagement with the items to be washed (16), active in a rinsing state (SZ), in which the holding device (15) in positive and / or non-positive engagement with the items to be washed (16) is located, and vice versa can be brought.

Description

The present invention relates to a domestic dishwasher.

A dishwasher has a rinsing container and at least one dishwashing item to be moved into and out of the rinsing container. In the Spülgutaufnahme wash ware can be stored. In this case, it is necessary for the items to be washed to be safely placed in the washware receptacle and for another to be sufficiently cleaned and dried, without leaving behind any back-soiling or drying spots. In this case, every point of contact required for the firm and secure state of the items to be washed increases the likelihood that drying spots will form. Furthermore, in the case of lightweight hollow vessels there is often the risk that they will fall over with insufficient stability in the Spülgutaufnahme and turn around and then fill with rinsing liquor. This rinsing liquor then lacks the rinsing process, which can lead to a noise increase by snorkeling the circulation pump and / or to a reduction of the cleaning performance.

The publication EP 2 332 458 A1 discloses an insert for a rinsing and / or disinfecting machine with a holding device for hollow vessels, such as vases and glasses, comprising a holding part which can be inserted into the hollow vessel and a clamping part which can be fastened to the dish rack.

The publication US 2008/0156750 A1 discloses a holding device for holding in a Spülgutaufnahme a dishwasher recorded items to be washed. The holding device is flexible deformable to achieve a fixation of the items to be washed in the Spülgutaufnahme.

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

Accordingly, a household dishwasher with a Spülgutaufnahme and a holding device for holding recorded in the Spülgutaufnahme Spülgut proposed. The holding device is of a drying state in which the holding device is except positive and / or non-positive engagement with the items to be washed, active in a rinsing state in which the holding device is in positive and / or non-positive engagement with the items to be washed, and vice versa be brought.

Due to the fact that the holding device can be moved from the rinsing state into the drying state and vice versa, the items to be washed can be easily fixed and protected against falling over. However, the fixation is reversible, and thus the contact points can be minimized during the drying phase. This prevents the formation of drying spots on the items to be washed.

The fact that the holding device can be moved "actively" from the drying state into the rinsing state means, in particular, that the holding device is driven, in particular driven by an external force. In particular, the holding device applies a force to the items to be washed in the rinsing state. The external force can be generated, for example, by means of pressure, in particular by means of water pressure or rinsing fluid pressure, and / or by means of a temperature change, for example a temperature increase or a temperature decrease.

The domestic dishwasher may have a washing container with a plurality of Spülgutaufnahmen recorded in the washing container. In particular, the domestic dishwasher may have a lower Spülgutaufnahme or a lower basket and an upper Spülgutaufnahme or an upper basket. Each of the Spülgutaufnahmen can be assigned a holding device or a plurality of holding devices. The holding device may have an elastically deformable holding tube or be such a holding tube. The holding device may have, in addition to the holding tube, a control element, for example a solenoid valve, or a circulating pump.

A positive connection is created by the meshing or grasping of at least two connection partners. A frictional connection requires a normal force on the surfaces to be joined together. Frictional connections can be realized by friction. The mutual displacement of the surfaces is prevented as long as caused by the static friction counterforce is not exceeded.

According to one embodiment, the holding device comprises an elastically deformable holding hose provided on the washware receptacle for holding the washware received in the washware receptacle, wherein the holding hose is active in the drying state in which the holding hose is in positive and / or non-positive engagement with the washware the rinsing state in which the holding tube is in positive and / or non-positive engagement with the items to be washed, and vice versa can be brought.

Preference is given to a household dishwasher with a Spülgutaufnahme and provided on the Spülgutaufnahme elastically deformable hose for holding in the Spülgutaufnahme recorded Spülgut suggested, wherein the hose of a drying state in which the holding tube is except positive or non-positive engagement with the dishes, active in a flushing state in which the holding tube is in positive and / or non-positive engagement with the items to be washed , and vice versa is available.

In particular, the holding hose in the rinsing state brings a force acting perpendicularly to a wall of the items to be washed, in particular a normal force. The flushing state may also be referred to as a holding state. The holding tube preferably comprises an inner tube made of an elastically deformable plastic material, on the outside of which different fiber nets are applied. The fiber nets are wound on top of each other. Between the fiber networks elastically deformable intermediate tubes can be provided. Fibers of the fiber nets are wound spirally on the inner tube or the intermediate tubes at different angles of inclination. With the aid of the different angles of inclination of the fibers of the fiber nets, the change in geometry of the holding tube can be controlled when it is being transported from the rinsing state to the drying state and vice versa. Preferably, the holding hose does not contact the items to be washed in the drying state. In particular, the holding hose can coincide in the drying state, so that it moves out of the washware automatically.

The holding hose can also be spent several times from the rinsing state to the drying state and vice versa during a rinsing process of the household dishwasher. In this case, the holding tube can also be spent in different rinsing conditions. Under different rinse states is to be understood that the holding tube can assume different geometric shapes, causing the contact points to change the items to be washed during the rinsing process. In this way it can be avoided that the fixation is always at one and the same place and thus sets back pollution. The holding hose can also adapt to the required height of the dishes. For example, a length of the holding hose may also change as it moves from the drying condition to the purge condition and vice versa.

According to one embodiment, the holding tube for bringing it from the drying state to the rinsing state is pressurizable.

In particular, the holding tube can be pressurized with the aid of rinsing fluid. For example, by adjusting a rotational speed of a pump motor of the circulation pump of the domestic dishwasher, the pressure in the holding hose can be adjusted. Alternatively, a solenoid valve can be provided which regulates the pressure in the holding hose. Depending on the amount of pressure applied, the holding hose can be brought, for example, from the state of drying into a multiplicity of different rinsing states, or at least into a rinsing state.

In accordance with a further embodiment, the holding hose can be exposed to a temperature change for the purpose of bringing it from the drying state into the rinsing state.

For example, the holding tube is brought into the rinsing state by means of a temperature increase from the drying state and is deformed back by means of a temperature reduction from the rinsing state to the drying state or vice versa. For example, the holding hose can be moved from the drying state to the rinsing state and vice versa with the aid of a temperature change of the rinsing liquor.

According to a further embodiment, the holding hose in the rinsing state has a helical geometry.

The helical geometry may also be referred to as a helical geometry. In the rinsing state, the holding hose is for example linear or punctiform on a wall of the items to be washed.

According to a further embodiment, the holding hose has at least one spray nozzle.

The spray nozzle may for example be arranged on the end side of the holding tube. With the help of the spray nozzle, for example, a floor of the items to be washed can be cleaned. The holding tube can have any number of spray nozzles, which can be arranged at any position on the holding tube.

According to a further embodiment, the holding tube has a star-shaped cross section and / or notches.

This ensures that the surface structure ensures good drainage of the rinsing liquor, including detached dirt particles. As a result, drying stains and / or backfilling are effectively avoided. The notches may be, for example, wedge-shaped or rhombic. However, the indentations can have any geometry. The Notches extend along a longitudinal direction of the tether.

According to a further embodiment, the holding hose has around these circumferential contact rings.

The number of contact rings is arbitrary. For example, the contact rings are positioned at a predetermined distance from each other. The distance between two contact rings can be, for example, several millimeters to several centimeters. With the help of the contact rings, the contact area between the hose and the items to be washed can be reduced.

According to a further embodiment, the holding hose has these helically encircling contact webs.

The contact webs reduce the contact surface between the holding tube and the items to be washed. As a result, the drying result can be further improved.

According to a further embodiment, the holding tube is formed as a corrugated tube.

A corrugated hose has alternately arranged wave troughs and wave crests, which are alternately positioned next to one another in the longitudinal direction of the holding hose. In this way, the contact area between the holding tube and the items to be washed can also be reduced.

Other possible implementations of the domestic dishwasher include not explicitly mentioned combinations of features described above or below with regard to the exemplary embodiments. The skilled person will also add individual aspects as improvements or additions to the respective basic form of the household dishwasher.

Further advantageous embodiments and aspects of the domestic dishwasher are the subject of the dependent claims and the embodiments of the domestic dishwasher described below. In the following, the domestic dishwashing rinse will be explained in more detail on the basis of preferred embodiments with reference to the enclosed figures.

• 1 eine schematische perspektivische Ansicht einer Ausführungsform einer Haushaltsgeschirrspülmaschine;
• 2 eine schematische perspektivische Ansicht einer Ausführungsform einer Halteeinrichtung für die Haushaltsgeschirrspülmaschine gemäß 1;
• 3 eine weitere schematische perspektivische Ansicht der Halteeinrichtung gemäß 2;
• 4 eine schematische perspektivische Ansicht einer Ausführungsform eines Halteschlauchs für die Halteeinrichtung gemäß 2;
• 5 eine schematische Schnittansicht einer weiteren Ausführungsform eines Halteschlauchs für die Halteeinrichtung gemäß 2;
• 6 eine schematische Schnittansicht einer weiteren Ausführungsform eines Halteschlauchs für die Halteeinrichtung gemäß 2;
• 7 eine schematische perspektivische Ansicht einer weiteren Ausführungsform eines Halteschlauchs für die Halteeinrichtung gemäß 2; und
• 8 eine schematische perspektivische Ansicht einer weiteren Ausführungsform eines Halteschlauchs für die Halteeinrichtung gemäß 2.

Show it

• 1 a schematic perspective view of an embodiment of a household dishwasher;
• 2 a schematic perspective view of an embodiment of a holding device for the household dishwasher according to 1 ;
• 3 a further schematic perspective view of the holding device according to 2 ;
• 4 a schematic perspective view of an embodiment of a holding tube for the holding device according to 2 ;
• 5 a schematic sectional view of another embodiment of a holding tube for the holding device according to 2 ;
• 6 a schematic sectional view of another embodiment of a holding tube for the holding device according to 2 ;
• 7 a schematic perspective view of another embodiment of a holding tube for the holding device according to 2 ; and
• 8th a schematic perspective view of another embodiment of a holding tube for the holding device according to 2 ,

In the figures, the same or functionally identical elements have been given the same reference numerals, unless stated otherwise.

The 1 shows a schematic perspective view of an embodiment of a household dishwasher 1 , The household dishwasher 1 includes a washing container 2 passing through a door 3 , in particular waterproof, closable. This can be done between the door 3 and the washing container 2 a sealing device may be provided. The washing container 2 is preferably cuboid. The washing container 2 can in a housing of the household dishwasher 1 be arranged. The washing container 2 and the door 3 can have a dishwasher 4 form for rinsing dishes.

The door 3 is in the 1 shown in their open position. By pivoting around one at a lower end of the door 3 provided pivot axis 5 can the door 3 closed or opened. With the help of the door 3 can be a loading opening 6 of the washing container 2 closed or opened. The washing container 2 has a floor 7 one to the ground 7 opposite arranged ceiling 8th one of the closed door 3 opposite rear wall 9 and two side walls arranged opposite each other 10 . 11 on. The floor 7 , the ceiling 8th , the back wall 9 and the side walls 10 . 11 can be made for example of a stainless steel sheet or of a plastic material.

The household dishwasher 1 For example, further comprises at least one Spülgutaufnahme 12 to 14 on. Preferably, several, for example three, Spülgutaufnahmen 12 to 14 be provided, wherein the Spülgutaufnahme 12 a lower Spülgutaufnahme or a lower basket, the Spülgutaufnahme 13 an upper Spülgutaufnahme or a top basket and the Spülgutaufnahme 14 a cutlery drawer can be. As the 1 Furthermore, shows are the Spülgutaufnahmen 12 to 14 one above the other in the washing container 2 arranged. Every washware intake 12 to 14 is optional in the washing container 2 into or out of this displaceable. In particular, each Spülgutaufnahme 12 to 14 in a direction of insertion e (Arrow) in the washing container 2 hineinschiebbar and against the insertion direction e (Arrow) in a pull-out direction A (Arrow) from the washing container 2 pulled out.

The household dishwasher 1 also includes one in the 2 and 3 shown holding device 15 for holding in one of the Spülgutaufnahmen 12 . 13 recorded dishes 16 , The dishes 16 For example, it may be a bottle, a cup or the like. The dishes 16 includes, for example, a cylindrical wall 17 and a cylindrical wall 17 end-closing bottom 18 , The dishes 16 however, it can have any geometry.

The holding device 15 is for example at one of the Spülgutaufnahmen 12 . 13 intended. Each of the washware receptacles 12 . 13 can have several such holding devices 15 exhibit. The holding device 15 includes an elastically deformable holding tube 19 , The holding device 15 can also be identical to the holding hose 19 be. The hose is from a in the 2 shown rinse state SZ , in which the holding hose 19 in positive and / or non-positive engagement with the items to be washed 16 located in one of the 3 shown drying state TZ , in which the holding hose 19 except positive and / or non-positive engagement with the items to be washed 16 is located, and vice versa. The rinse state SZ can also be referred to as a holding state.

A positive connection is created by the meshing or grasping of at least two connection partners. A frictional or non-positive connection requires a normal force on the surfaces to be joined together. Frictional connections can be realized by friction. The mutual displacement of the surfaces is prevented, as long as caused by the static friction counterforce is not exceeded.

In particular, the holding tube 19 or the holding device 15 at least from the drying state TZ active in the rinse state SZ spent. Additionally or alternatively, the holding hose 19 or the holding device 15 also active from the rinse state SZ in the drying state TZ be spent. By "active" is to be understood in the present case that the holding hose 19 or the holding device 15 driven, in particular driven by means of a foreign power is.

In the rinse state SZ engages the tether 19 for example, in the dishes 16 on, lies on the inside of the wall 17 and practice a force F on the wall 17 out. With the help of the force F becomes a frictional connection between the hose 19 and the dishes 16 realized. Perpendicular to a central or symmetrical axis M16 of the dishes 16 can the dishes 16 also form-fitting with the holding hose 19 be connected. The frictional connection acts in particular parallel to the axis of symmetry M16 , As the 2 shows, the holding hose points 19 in the flushing state SZ For example, a helical or helical geometry on the inside of the wall 17 is applied.

In the rinse state SZ lies the holding hose 19 line or punctiform on the inside of the wall 17 at. In the drying state TZ lies the holding hose 19 preferably not on the dishes 16 at. The holding hose 19 is to spend the same of the drying state TZ in the rinsing state SZ for example, with a pressure p acted upon. For this purpose, the hose can 19 be pressurized with rinsing liquor. The holding device 15 this can be a control 20 exhibit. The control 20 is for example a solenoid valve, with the help of the holding hose 19 optionally pressurizable with the wash liquor or the holding hose 19 in a pressureless state, namely the drying state TZ , can be spent. The control 20 may also be a circulation pump or a control of the circulation pump. With the help of a speed change of the circulation pump, the pressure p can then be changed.

Alternatively or additionally, the holding hose 19 for bringing it from the drying state TZ in the rinsing state SZ and vice versa also be exposed to a change in temperature. For example, the holding tube 19 then at a temperature increase from the drying state TZ in the rinsing state SZ and at a temperature decrease from the purge state SZ in the drying state TZ spent. Conversely, the holding hose 19 at a temperature decrease from the drying state TZ in the rinsing state SZ and at a temperature elevation of the purge state SZ in the drying state TZ be spent. The temperature change can be achieved, for example, by means of an adaptation of the temperature of the rinsing liquor.

The 4 shows an exemplary structure of the holding tube 19 , The holding hose 19 can be made of an elastic plastic material inner tube 21 include. The inner tube 21 can be used to spend the holding hose 19 from the drying state TZ in the rinsing state SZ with the pressure p be charged. On the outside of the inner tube 21 can use multiple fiber networks 22 to 24 be provided. For example, there are three fiber networks 22 to 24 , in particular a first fiber network 22 , a second fiber network 23 and a third fiber network 24 , intended. The number of fiber networks 22 to 24 is however arbitrary. The first fiber network 22 is in the 4 with solid lines, the second fiber network 23 is with dash-dotted lines and the third fiber network 24 is shown with dashed lines. Between the fiber nets 22 to 14 intermediate hoses can be provided.

Fibers of the fiber nets 22 to 24 are each spirally around the inner tube at a defined angle of inclination 21 wound. This angle of inclination under which the fibers of the fiber nets 22 to 24 around the inner tube 21 Wrapped, it decides how to hold the hose 19 twisted when the pressure p on the inner tube 21 is applied and how the geometry of the holding tube 19 changes at a pressure change. For example, the holding hose takes 19 in the pressurization in the 2 shown spiral shape. Once the inner tube 21 no longer with the pressure p is acted upon, for example, this can coincide and completely from the dishes 16 slip out or one in the 3 take shown approximately rod-shaped geometry in which the holding tube 19 the dishes 16 not touched on the inside or at least at less contact points.

On the outside of the fiber networks 22 to 24 a not shown outer tube may be applied. The holding hose 19 can be any number of stacked intermediate tubes and fiber networks 22 to 24 exhibit. As a result, the geometry and / or length of the holding tube 19 be defined as desired during the pressurization and / or pressure change.

As the 3 shows, the holding hose can 19 at least one end provided spray nozzle 25 exhibit. The spray nozzle 25 For example, one end of the hose 19 provided opening. With the help of the spray nozzle 25 For example, the ground can 18 of the dishes 16 getting cleaned. The holding hose 19 can be any number of such spray nozzles 25 have, at any position of the hose 19 can be arranged. Thus, for example, the wall 17 of the dishes 16 getting cleaned.

The 5 shows a sectional view of another embodiment of a holding tube 19 , In this embodiment of the holding tube 19 this has a star-shaped cross-section 26 on.

The 6 shows a schematic sectional view of another embodiment of a holding tube 19 , In this embodiment of the holding tube 19 this has wedge-shaped or rhombic notches 27 on. The notches 27 extend along a longitudinal direction of the holding tube 19 ,

The 7 shows a schematic perspective view of another embodiment of a holding tube 19 , In this embodiment of the holding tube 19 this includes around the holding hose 19 circumferential contact rings 28 , The number of contact rings 28 is arbitrary. With the help of contact rings 28 Can be a contact surface between the hose 19 and the dishes 16 be reduced.

The 8th shows a schematic perspective view of another embodiment of a holding tube 19 , In this embodiment of the holding tube 19 this includes at least one around this helical or helical circumferential contact web 29 , It can be a variety of such contact webs 29 be provided. With the help of contact bridges 29 Can be a contact surface between the hose 19 and the dishes 16 be reduced. The holding hose 19 may also be formed as a corrugated hose. The aforementioned embodiments of the holding tube 19 according to the 5 to 8th can also be combined with each other.

As long as the holding hose 19 in the drying state TZ is the holding hose 19 without tension, and the dishes 16 can over the hose 19 be put. During the flushing process of the household dishwasher 1 For example, the pressure of the rinse water is the holding hose 19 deformed so that this is on the wall 17 of the dishes 16 applies, causing the dishes 16 is held and protected against falling over or overmolding. The location of the dishes 16 thus remains over the entire flushing process included. With the help of the spray nozzle 25 can the soil 18 of the dishes 16 getting cleaned.

At the end of the rinse in the transition to drying, the requirement for the holding tube changes 19 , as for holding the dishes 16 necessary contact points are no longer needed. For example, by reducing the speed of the circulation pump, the pressure decreases p off, causing the holding hose 19 depressurizes and gets away from the wall 17 replaces. This ensures that surface contact during drying is minimized. Furthermore, also an inclination of the items to be washed 16 be generated, which can drain collected water in bottoms filled from above. The surface of the hose 19 can be designed such that the surface structure ensures a good drainage of the wash liquor including detached dirt particles to effectively avoid landing. This can be done for example by the in the 5 to 8th shown surface design can be achieved.

Advantageously, with the help of the holding hose 19 light dishes 16 simply fixed and protected against falling over. However, this fixation is reversible, and thus the contact points can be minimized for the drying phase. In combination with an alternating basket rinse, it can be additionally avoided that the fixation is always located in one and the same place and thus sets back pollution. Through the movable spray nozzle 25 At the end of the hose, even high vessels can be cleaned on the floor. The holding hose 19 also adapts to the required height of the items to be washed 16 at.

Although the present invention has been described with reference to embodiments, it is variously modifiable.

LIST OF REFERENCE NUMBERS

1

Domestic dishwasher

2

rinse tank

3

door

4

Wash cabinet

5

swivel axis

6

loading port

7

ground

8th

blanket

9

rear wall

10

Side wall

11

Side wall

12

Spülgutaufnahme

13

Spülgutaufnahme

14

Spülgutaufnahme

15

holder

16

ware

17

wall

18

ground

19

tether

20

control

21

inner tube

22

fiber network

23

fiber network

24

fiber network

25

spray nozzle

26

cross-section

27

notch

28

contact ring

29

contact web

A

Extension direction (arrow)

e

Insertion direction (arrow)

F

force

M16

axis of symmetry

p

print

SZ

flushing state

TZ

drying condition

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• EP 2332458 A1 [0003]
• US 2008/0156750 A1 [0004]

Claims (10)

Household dishwasher (1) with a Spülgutaufnahme (12, 13) and a holding device (15) for holding in the Spülgutaufnahme (12, 13) recorded items to be washed (16), wherein the holding device (15) of a drying state (TZ), in which the holding device (15) except positive and / or non-positive engagement with the items to be washed (16), active in a rinsing state (SZ), in which the holding device (15) in positive and / or non-positive engagement with the items to be washed ( 16), and vice versa is available. Household dishwasher (1) after Claim 1 , characterized in that the holding device (15) comprises an on the Spülgutaufnahme (12, 13) provided elastically deformable holding hose (19) for holding in the Spülgutaufnahme (12, 13) housed items to be washed (16), wherein the holding tube (19) of the drying state (TZ), in which the holding tube (19) is in positive or non-positive engagement with the items to be washed (16), active in the rinsing state (SZ), in which the holding tube (19) in form and / or non-positive engagement with the items to be washed (16), and vice versa can be brought. Household dishwasher (1) after Claim 2 , characterized in that the holding hose (19) for bringing it from the drying state (TZ) in the flushing state (SZ) with pressure (p) can be acted upon. Household dishwasher (1) after Claim 2 or 3 , characterized in that the holding hose (19) for bringing it from the drying state (TZ) in the rinsing state (SZ) of a temperature change is suspendable. Household dishwasher (1) according to one of Claims 2 to 4 , characterized in that the holding tube (19) in the rinsing state (SZ) has a helical geometry. Household dishwasher (1) according to one of Claims 2 to 5 , characterized in that the holding hose (19) has at least one spray nozzle (25). Household dishwasher (1) according to one of Claims 2 to 6 , characterized in that the holding tube (19) has a star-shaped cross-section (26) and / or notches (27). Household dishwasher (1) according to one of Claims 2 to 7 , characterized in that the holding hose (19) has these circumferential contact rings (28). Household dishwasher (1) according to one of Claims 2 to 8th , characterized in that the holding tube (19) has these helically encircling contact webs (29). Household dishwasher (1) according to one of Claims 2 to 9 , characterized in that the holding hose (19) is formed as a corrugated hose.

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