EP3169215B1 - Domestic dishwasher - Google Patents

Description

The present invention relates to a domestic dishwasher.

Loading and unloading a lower basket of a household dishwasher is often found uncomfortable by users, since this requires working in a bent position. Various mechanisms have therefore become known from the prior art in order to raise the lower basket from a lower position thereof within the washing compartment of the domestic dishwasher to an upper position outside the washing compartment.

The pamphlets DE 20 2009 004 771 U1 and DE 10 2012 107 993 A1 each disclose a slide/pivot mechanism set up for this purpose. This includes a shelf, for example a lower basket, which is held in a linearly displaceable manner on a guide rail. The guide rail is articulated in a pivotable manner on a body of the domestic dishwasher via two pivoting arms.

Furthermore, the reference discloses U.S. 2008/0129168 A1 a sliding/pivoting mechanism for a shelf, in particular a lower basket, of a domestic dishwasher. The shelf is held in a linearly displaceable manner by means of a closed frame on two guide rails arranged on both sides, and the frame is pivoted on a body of the domestic dishwasher along a circular path via two swivel arms arranged on each side, so that the shelf can be moved between a lower, pushed-in position within the domestic dishwasher and a upper extended position is movable outside the domestic dishwasher.

In general, such sliding/pivoting mechanisms have the problem that the center of gravity of the lower basket is pivoted so far in front of the body that the entire domestic dishwasher tips forward. Some attempts are made to circumvent this problem by not providing a full extension for the lower basket. However, this in turn results in ergonomic disadvantages when loading and unloading the lower basket.

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

Accordingly, a household dishwasher is provided with a body, at least one loading level, at least one guide rail, at least one link arm and a guide device. The at least one loading level is linearly displaceable along the at least one guide rail between a first position below and a second position below the same. In the first position below, the at least one loading level is arranged below and inside the body. In the second position below, the at least one loading level is arranged below and at least partially outside the body. The at least one link arm pivotally holds the at least one guide rail on the body for moving the loading plane between the second position below and a third position above it. In the third position, the at least one loading level is arranged at the top and at least partially outside the body. The guide device guides the at least one link arm along a guide path which at least partially deviates from a circular path. The guide track points in the extension direction. In which the at least one loading plane can be shifted from the second position at the bottom to the third position at the top, with an increasing incline at least in certain areas. The guide device has a link guide formed on the body and a link element attached to the link arm, which engages in the link guide, with the link guide preferably being formed as a slot and the link element as a pin.

In other words, the track is partially or fully non-circular. Due to the guide device, the loading level can be controlled in such a way that it remains closer to the body with its center of gravity on its way up between the second position below and the third position above. The at least one loading plane at least partially does not follow a part-circle movement of the link arm, for example not a quarter-circle movement known from the prior art, but deviates from it, in particular upwards and towards the body. It is thus possible for the at least one loading level in particular to be pulled completely out of the body ("full extension") without the domestic dishwasher tipping over.

In particular, the body can include a rinsing container. The at least one link arm can be articulated on the washing compartment, in particular on a fitting of the same.

The loading level can very generally be a shelf or holder, in particular for crockery or cutlery. The loading level is preferably a crockery basket or a cutlery drawer. The at least one loading level is particularly preferably a lower crockery basket.

"Below" and "above" is to be understood here to mean that the third position above the loading level is provided above the first position below and the second position below the loading level.

In particular, the at least one link arm in the first position below and in the second position below the at least one loading plane can be oriented vertically and in the third position above the at least one loading plane can be oriented horizontally. “Vertical” and “horizontal” here also include deviations from the vertical or horizontal of up to 15°, preferably less than 10° and more preferably less than 5°.

The guide track can therefore have different geometric profiles; it preferably has an increasing incline, at least in its initial area. As a result, the at least one loading level is guided particularly closely to the body.

For example, the link guide or the slot can be formed in a side wall of the washing compartment. Corresponding to the above exemplary embodiments, the link guide can have an increasing incline or the shape of half a parabola, at least in some areas, with other forms of the link guide also being possible.

According to one embodiment, the guideway has the shape of half a parabola, the apex of which lies on a longitudinal center axis of the at least one link arm in the first position below and/or in the second position below the at least one loading plane.

It has been shown that this form of a guide track contributes in a simple way to a particularly narrow guidance of the at least one loading level on the body on its way up from the second position at the bottom to the third position at the top (and vice versa).

According to a further embodiment, the link arm is set up for a rotary and linear relative movement with respect to its pivot point on the body. In particular, the link arm has a slot into which a pin arranged on the body engages.

The pin thus serves as an articulation point for the link arm on the body, so that a relative rotational movement is made possible. At the same time, however, a linear relative movement is also possible due to the elongated hole, with the link arm being able to be displaced linearly with the elongated hole in relation to the pin. A first end position of the pin in the slot of the first position below and/or the second position below the at least one loading level and an opposite end position of the pin in the slot of the third position above the at least one loading level can be assigned.

Furthermore, a household dishwasher is provided with a body, at least one loading level, at least one guide rail, at least one link arm and a guide device. The at least one loading level is linearly displaceable along the at least one guide rail between a first position below and a second position below the same. In the first position, the at least one loading level is arranged below and inside the body. In the second position below, the at least one loading level is arranged below and at least partially outside the body. The at least one link arm pivotally holds the at least one guide rail on the body for moving the loading plane between the second position below and a third position above it. The at least one loading level is arranged in the third position above and at least partially outside the body. The guide device is set up to guide the at least one loading level between the second position at the bottom and the third position at the top on a circular path. The circular path deviates from that on which the at least one guide rail can be moved. The guide lever is articulated at one end on the body and at its other end can be brought into pivotal engagement with the at least one loading level when the same is linearly displaced from the first position at the bottom to the second position at the bottom. The guide lever has an articulation point on the body, which is below and/or in front of the articulation point of the at least one guide lever in the extension direction, in which the at least one loading level can be linearly displaced from the first position at the bottom to the second position at the bottom.

In particular, the respective circular paths can intersect. The guide device prevents the loading plane from moving between the second position at the bottom and the third position at the top on a circular path, the center point of which coincides with the pivot point of the at least one link arm on the body. Rather, the guide lever ensures that the at least one loading level is pulled back along the guide rail when the at least one loading level is moved from its second position at the bottom to its third position at the top. This measure also means that the at least one loading level is guided closer to the body than is the case with conventional solutions. Correspondingly, the center of gravity of the at least one loading level is moved less far forward, so that the risk of the household dishwasher tipping over is avoided.

The guide device preferably has a guide lever. The guide lever is designed in particular as an elongate element, for example as a plastic or metal profile part.

If the at least one loading plane is moved linearly from the first position at the bottom to the second position at the bottom, it automatically engages the other end of the guide lever. This engagement is pivotable, so that in the engaged state, the loading plane can only be pivoted about the pivot point of the guide lever at its one end on the body. A linear one In contrast, shifting the at least one loading level is excluded in the engaged state.

The at least one loading level can thus be guided suitably close to the body.

According to a further embodiment, the guide device comprises a blocking piece or a blocking counterpart. In particular, the other end of the guide lever has the locking piece and the at least one loading plane has the locking counterpiece, the locking piece and the locking counterpiece releasing a linear displacement of the at least one loading plane relative to the guide lever in a released state and blocking the linear displacement in a locked state of the same. The locking piece or the locking counterpart is rotatable about an axis of rotation in the other of the locking piece and the locking counterpart for adjusting them between the locking state and the unlocking state. The axis of rotation is preferably coaxial with a pivot axis about which one end of the guide lever is articulated in a pivotable manner on the at least one loading plane.

In the locked state, the locking piece and the locking counterpart are engaged with each other such that the linear displacement of the loading plane is locked. In particular, the locking counterpart can engage behind the locking piece (or vice versa) in the locked direction. For example, the locking counterpart can extend around the locking piece on the outside at least in sections (or vice versa). On the other hand, in the release state, disengagement of the lock piece and the lock counterpart in the direction of linear displacement is permitted. The release state can thus refer to a state in which, for example, the blocking piece is still arranged in the blocking counterpart, but can be moved out of it. Or the release state may refer to a state in which the locking piece and the locking counterpart are spaced from each other.

The fact that the axis of rotation is preferably coaxial with the pivot axis results in a simple mechanism for preventing simultaneous pivoting and linear displacement of the at least one loading plane relative to the guide lever. In particular, this can prevent the at least one loading level, after it has been brought into pivotal engagement with the other end of the guide lever in the pull-out direction and a pivoting of the at least one loading level from the second position at the bottom to the third position at the top has begun, moved back against the pull-out direction, i.e. into the washing tub. Accordingly, such a shifting back is preferably excluded until the at least one loading plane has been pivoted back completely from its third position at the top to the second position at the bottom. Only then is the linear displacement of the at least one loading level back into the washing compartment released. A simple mechanism results from the fact that the rotational movement of the locking piece and locking counterpart to each other in the present solution is a result of the movement of the at least one loading level upwards from the second position below to the third position above, with the at least one loading level relative to the Guide lever pivoted. This means that the rotary movement and the pivoting movement take place at the same time, with the pivoting movement being the cause of the rotary movement.

According to a further embodiment, the locking piece or the locking counterpart has a C-shaped element with a radial opening. The respective other of the locking piece and the locking counterpart has a pin-shaped element that can be inserted by means of the radial opening.

By linear displacement, the peg-shaped element passes through the radial opening into the space enclosed by the C-shaped element. By relative rotation of the blocking piece and the blocking counterpart, the C-shaped element engages behind the peg-shaped element counter to the pull-out direction, so that movement of the peg-shaped element counter to the pull-out direction is then blocked.

The guide lever is preferably held in position at least in the first position below and in the second position below the at least one loading plane by means of a stop. The stop can be attached to the body.

Furthermore, a household dishwasher is provided with a body, at least one loading level, at least one guide rail, at least one link arm and a guide device. The at least one loading level is linearly displaceable along the at least one guide rail between a first position below and a second position below the same. The at least one loading plane is arranged below and inside the body in the first position and below and at least partially outside the body in the second position. The at least one link arm pivotally holds the at least one guide rail on the body for moving the loading plane between the second position below and a third position above it. In the third position, the at least one loading level is arranged at the top and at least partially outside the body. The guide device is set up to guide the at least one loading plane along a guide path that deviates from a circular path. The guide device has an in particular straight and/or vertical guide rail arranged on the body and a guide element arranged on the at least one loading level. The guide element preferably comes into contact with the guide rail by linear displacement of the at least one loading plane from the first position at the bottom to the second position at the bottom. Alternatively or additionally, the guide element is preferably guided along the guide rail when the at least one loading level is moved between the second position below and the third position above.

In other words, the track is partially or fully non-circular. Due to the guide device, the at least one loading level or its center of gravity can be guided close to the body between its second position at the bottom and its third position at the top. Accordingly, the domestic dishwasher can be prevented from tipping over.

The at least one loading level is preferably moved from its first position below into its second position below, whereupon the guide element comes into contact with the guide rail. During the subsequent movement of the at least one loading level between the second position at the bottom and the third position at the top, the guide element is guided along the guide rail and pulls back the at least one loading level along the at least one guide rail in the opposite direction to the extension direction if the at least one loading level moves out of the second position down to third position up. The guide element can, for example, rest against the guide rail only in the extension direction and correspondingly perpendicular to it along this. In addition, the guide rail can be designed as a channel in which the guide element is fixed in and against the extension direction, correspondingly linear displacement of the guide element in and against the extension direction is blocked, while the at least one loading level is between the second position at the bottom and the third position at the top emotional.

According to one embodiment, the guideway runs straight and/or vertically.

"Vertical" here also includes deviations from the vertical of up to 30°, preferably less than 10° and more preferably less than 5°.

According to a further embodiment, the guide element is designed as a roller or sliding element.

In this way, the guide element can be guided on the guide rail with little noise and in an operable manner.

According to a further embodiment, the guide rail comprises two parallel walls, between which the guide element can be inserted when the at least one loading plane is linearly displaced by means of an opening and/or between which the guide element can be inserted when the at least one loading plane is moved between the second position at the bottom and the third position at the top is led.

Correspondingly, the two parallel walls form the aforementioned channel. The opening can, for example, be formed simply by shortening the front wall of the two parallel walls in the pull-out direction, thereby enabling movement of the guide element in the pull-out direction onto the other parallel wall. If the guide element is then in contact with the other wall in the pull-out direction, the guide element is located directly below the opening between the two parallel walls, by means of which the guide element can be inserted between the two parallel walls.

Further possible implementations of the invention also include combinations of features or embodiments described above or below with regard to the exemplary embodiments that are not explicitly mentioned. The person skilled in the art will also add individual aspects as improvements or additions to the respective basic form of the invention.

Further advantageous refinements and aspects of the invention are the subject matter of the dependent claims and of the exemplary embodiments of the invention described below. The invention is explained in more detail below on the basis of preferred embodiments with reference to the enclosed figures.

Fig. 1

eine schematisch perspektivische Ansicht einer Ausführungsform einer Haushaltsgeschirrspülmaschine;

Fig. 2

ausschnittsweise eine Ansicht II aus der Fig. 1 gemäß einer ersten Variante, wobei ein unterer Geschirrkorb in einer zweiten Position unten gezeigt ist;

Fig. 3

die Ansicht aus der Fig. 2, wobei sich der untere Geschirrkorb in einer dritten Position oben befindet;

Fig. 4

eine Ansicht IV aus der Fig. 2;

Fig. 5

ausschnittsweise die Ansicht II aus der Fig. 1 gemäß einer zweiten Variante, wobei ein unterer Geschirrkorb in einer zweiten Position unten gezeigt ist;

Fig. 6

die Ansicht aus der Fig. 5, wobei sich der untere Geschirrkorb in einer dritten Position oben befindet;

Fig. 7 bis Fig. 9

unterschiedliche Stellungen eines Sperrmechanismus aus der Fig. 5 und der Fig. 6;

Fig. 10

ausschnittsweise die Ansicht II aus der Fig. 1 gemäß einer dritten Variante, wobei ein unterer Geschirrkorb in einer zweiten Position unten gezeigt ist; und

Fig. 11

die Ansicht aus der Fig. 10, wobei sich der untere Geschirrkorb in einer dritten Position oben befindet.

Show it

1

a schematic perspective view of an embodiment of a domestic dishwasher;

2

a detail of a view II from the 1 according to a first variant, wherein a lower dish rack is shown in a second position below;

3

the view from the 2 wherein in a third position the lower dish rack is up;

4

a view IV from the 2 ;

figure 5

detail of view II from 1 according to a second variant, wherein a lower dish rack is shown in a second position below;

6

the view from the figure 5 wherein in a third position the lower dish rack is up;

Figures 7 to 9

different positions of a locking mechanism from the figure 5 and the 6 ;

10

detail of view II from 1 according to a third variant, wherein a lower dish rack is shown in a second position below; and

11

the view from the 10 , with the lower rack being in a third position up.

Elements that are the same or have the same function have been provided with the same reference symbols in the figures, unless otherwise stated.

The 1 shows a schematic perspective view of a household dishwasher 1. The household dishwasher 1 has a body which includes a washing compartment 2 and which can be closed watertight by a door 3.

The washing container 2 and the door 3 can form a washing chamber 4 for washing items to be washed. Door 3 is in the 1 shown in their open position. The door 3 can be closed or opened by pivoting about a pivot axis provided at a lower end of the door 3 .

The washing compartment 2 is cuboid, for example, and can comprise a floor 5, a cover 6 opposite the floor 5, a rear wall 7 opposite the door 3, and two side walls 8, 9 opposite one another. In particular, the side walls 8, 9 can be made of stainless steel sheet.

The household dishwasher 1 also has at least one loading level 10 . The loading level 10 is preferably a dishwashing receptacle of the domestic dishwasher 1. In particular, multiple loading levels 10 can be provided, one of the multiple loading levels 10 being a lower basket, an upper basket or a cutlery drawer of the domestic dishwasher 1. The multiple loading levels 10 are preferably arranged one above the other in the washing compartment 2 . Each loading level 10 can be moved either in a push-in direction E (arrow) into the washing compartment 2 or in a pull-out direction A (arrow) out of it. For this purpose, a rail device 11 is preferably provided on both sides of a respective loading level 10 .

The 2 shows a view II from the 1 According to a first variant, the side wall 9 is not shown, so that a view of the side wall 8 and the washing chamber 4 in front of it is released. Furthermore, in the 2 a loading level 10 is shown in the form of a lower dish rack.

The crockery basket 10 is opposite a guide rail 12 which is already associated with the 1 mentioned rail device 11 linearly displaceable. For this purpose, the crockery basket 10 can comprise, for example, a further guide rail 13 which can be linearly displaced relative to the guide rail 12 by means of roller bearings (not shown) and a running rail (not shown). The guide rails 12 and 13 together form a so-called telescopic rail. Alternatively, the crockery basket 10 could also have rollers, by means of which it is held on the guide rail 12 in a linearly displaceable manner.

The crockery basket 10 has a first position at the bottom (not shown), in which it is pushed into the washing chamber 4 in the insertion direction E (arrow) and is arranged close to or in contact with the rear wall 7 . Furthermore, in the first position, the dish rack 10 is arranged at the bottom in a lower region of the washing chamber 4 close to the floor.

In contrast, the 2 a second position at the bottom of the crockery basket 10, in which it is linearly partially displaced out of the washing chamber 4 in the pull-out direction A (arrow). The crockery basket 10 could also be moved completely out of the washing chamber 4 (so-called full extension). This movement corresponds to an exclusively horizontal displacement of the crockery basket 10. In the present case, "horizontal" also includes deviations of less than ±20°, preferably less than ±10° and more preferably ±5°.

The second position below is now followed by one in the 3 shown third position above the dish rack 10 at. In the third position at the top, the crockery basket 10 is pivoted upwards and is arranged outside the washing chamber 4 . In order to move from the second position below to the third position above, the domestic dishwasher 1 according to this first variant has a subsequent to the 2 , the 3 and the 4 Referring to mechanics described.

The 2 and the 3 each show a parallelogram linkage arrangement 14 which, for example, comprises two link arms 15, 16. The link arms 15, 16 are each - explained in more detail below for the sake of simplicity only for the link arm 15 - articulated on the side wall 8 at one end at a pivot point 17. at her At the other end, the link arms 15, 16 are articulated on the guide rail 12 at a pivot point 18.

In order to move the crockery basket 10 from the second position at the bottom to the third position at the top, the link arms 15, 16 can be pivoted by 80°, for example, as shown. However, a corresponding maximum swivel angle can be between 60° and 90°, for example. In the second position below (this also applies to the first position, not shown, below), the control arms 15, 16, as in FIG 2 shown to be vertically aligned. The link arms 15, 16 assume this position, in particular due to the effect of gravity.

In the second position, the crockery basket 10 can be fixed linearly immovably at the bottom relative to the guide rail 12, for which purpose a corresponding locking mechanism can be provided. In order to prevent the crockery basket 10 from moving too far in front of the washing container 2 when the link arms 15, 16 are pivoted, i.e. in the extension direction A (arrow) and potentially leading to the domestic dishwasher 1 tipping, a guide device 19 is provided. The guide device 19 comprises a link guide 20 and a link element 21.

The link guide 20 is designed, for example, as a slot on or in the side wall 8 . The slotted guide 20 has, for example, an incline that increases at least in regions in the pull-out direction A (arrow). For this purpose, link guide 20 can have the shape of half a parabola, for example, the vertex S of which lies on a longitudinal center axis 22 of link arm 15 when it is in its vertical position, i.e. corresponding to the first position at the bottom and the second position at the bottom of crockery basket 10.

The link element 21 can be designed, for example, as a pin which is fastened to the link arm 15 and protrudes from it and extends into the link guide 20 . In addition, it can be provided that the pin 21 is held in the link guide 20 in a form-fitting manner, for example by means of a dovetail geometry. The form fit (for example due to the dovetail geometry) is therefore in a width direction B (arrow) of the domestic dishwasher 1.

The link arm 15 also has a slot 23 through which in the width direction B (arrow) (see the 4 ) a pin 24 which is attached to the washing container 2 extends. The pin 24 together with the elongated hole 23 forms the already mentioned pivot point 17. As soon as the crockery basket 10 pivots from its second position at the bottom to its third position at the top, the link arm 15 can pivot accordingly not only about the pin 24, but also a linear relative movement run with respect to the pin 24. The linear relative movement is brought about by the interaction of the link element 21 with the link guide 20, with the elongated hole 23 being displaced in relation to the pin 24. The link guide 20 thus defines a non-circular guide path for the link element 21 and thus for the crockery basket 10.

In this embodiment, the pin 24 always forms the instantaneous pivot point with respect to which the crockery basket 10 pivots. However, due to the guide device 19, the distance between the crockery basket 10 or a center of gravity SP of the same and the pin 24 changes continuously when the crockery basket 10 pivots from its second position below into its third position above (and vice versa). The guide device 19 modifies the actual, approximately quarter-circle movement of the link arms 15, 16 in such a way that the crockery basket 10 and thus also its center of gravity SP is guided closely to the washing compartment 2 and the domestic dishwasher is accordingly prevented from tipping over.

Based on figure 5 , the 6 , the 7 and the 8 a second variant of a mechanism is described below, which allows the crockery basket 10 or its center of gravity SP to be moved upwards close to the washing compartment 2 when it is moved from its second position at the bottom to its third position at the top, so that the Domestic dishwasher 1 is avoided.

In contrast to the first variant according to the 2 , the 3 and the 4 the mechanism includes a guide device 25 with a guide lever 26. The guide lever 26 is pivoted at one end 26a on the washing compartment 2, in particular the side wall 8, in a pivotable manner. Preferably, the end 26a an articulation point 28 on the side wall 8, which is below and in the extension direction A (arrow) in front of the articulation point 17 of the link arm 15 (door-side link arm). At its other end 26b, the guide lever 26 in the 7 , the 8 and the 9 Locking piece 27 shown enlarged. The locking piece 27 is designed, for example, as a non-rotatable pin, which extends in the width direction B (arrow) of the domestic dishwasher 1 . A cross section of the pin 27 can be in a in the figure 5 , the 6 and the 7 shown waiting position of the guide lever 26 in the insertion direction E (arrow) of the same taper from one side 27a to a side 27b thereof. The sides 27a, 27b can be rounded. In particular, the pin 27 can have a circular cross-section flattened on both sides, as for example in FIG 7 to recognize.

On the crockery basket 10 to the locking piece or pin-shaped element 27 corresponding locking counterpart 30 is rotatably attached, which in the 7 , the 8 and the 9 is shown enlarged. The locking counterpart 30 is designed, for example, as a C-shaped element with a radial opening 31 . By means of the radial opening 31, the C-shaped element 30 can be moved over the pin-shaped element 27 when the crockery basket 10 from its first position, not shown, down into its in the figure 5 second position shown is linearly shifted down. The tapered cross section of the pin-shaped element 27 serves as an insertion aid. "Radial" here refers to the longitudinal axis of the peg-shaped element 27 or the C-shaped element 30, which extends in the width direction B (arrow).

In its waiting position, the guide lever 26 rests against a stop, for example in the form of a pin 32 on the side wall 8 . The guide lever 26 is in the waiting position both in the first position below and in the second position below the dish rack 10 .

The pin-shaped element 27 and the C-shaped element 30 are also in the first position at the bottom and in the second position at the bottom of the crockery basket 10 in a released state, i.e. a linear displacement of these relative to one another in the extension direction A (arrow) or der Insertion direction E (arrow) is possible.

Since the pin-shaped element 27 is non-rotatably connected to the guide lever 26 and the C-shaped element 30 is non-rotatably connected to the crockery basket 10, pivoting the crockery basket 10 from its second position at the bottom to its third position at the top causes the pin-shaped element 27 to rotate by one Axis of rotation D (which is also the longitudinal axis mentioned above) in the C-shaped element 30. This in turn causes the C-shaped element 30 to increasingly engage behind the pin-shaped element 27 on its side 27a. The 8 corresponds to an intermediate position of the dish rack 10 between its second, in which 7 shown position below and its third, in the 9 position shown above. Consequently, in the intermediate position and in the third position at the top of the crockery basket 1, a blocked state occurs in which a linear displacement of the crockery basket 10 in the extension direction A (arrow) and in the insertion direction E (arrow) is blocked, which means a blocked state of the pin-shaped element 27 and the C-shaped element 30 corresponds. At the same time, this results in the crockery basket 10 being forced to pivot on a circular path, the center point of which corresponds to the articulation point 28 of the guide lever 26 on the washing container 2 . According to the second variant, the link arms 15, 16 can only be rotated, ie not as in the first variant ( 2 , Figures 4 and 4 ) displaceably provided with respect to their respective pivot points 17 on the washing compartment 2. Correspondingly, the crockery basket 10 moves relative to the guide rail 12 in order to be able to follow the circular path specified by the guide lever 26 . In particular, the crockery basket 10 is pushed back along the guide rail 12 during its movement from the second position at the bottom to the third position at the top (ie moved in the direction of insertion E (arrow)). Correspondingly, the crockery basket 10 or its center of gravity SP can also be moved upwards close to the washing compartment 2 in the second variant, thereby preventing the domestic dishwasher 1 from tipping over. Because a swivel axis SW (see the 7 ) about which the crockery basket 10 pivots relative to the guide lever 26 is coaxial with the axis of rotation D, the locked state and the released state can be provided in a mechanically simple manner.

Based on 10 and the 11 a third variant of a mechanism is explained below, which is intended to reliably prevent the domestic dishwasher 1 from tipping over.

In contrast to the second variant according to the figure 5 , the 6 , 7 , the 8 and the 9 in the third variant, the restricted guidance of the crockery basket 10 takes place by means of a guide device 33 which comprises a guide rail 34 . The guide rail 34 extends in the vertical direction. The guide rail 34 can include two side walls 34a, 34b. The side walls 34a, 34b can be opposite one another in the pull-out direction A (arrow). The side wall 34b lying in front of the side wall 34a in the pull-out direction A (arrow) can be shortened on a lower section 36 of the guide rail 34 . This opens up a path for a guide element 37 of the guide device 33 attached to the crockery basket 10, so that when the crockery basket 10 is linearly displaced from its first position, which is not shown, it moves down into its in the 10 second position shown below comes into contact with the side wall 34a. A further pulling out of the crockery basket 10 in direction A is thus blocked. The crockery basket 10 can now be moved in a vertical direction along the guide rail 34 from its second position below (see Figs 10 ) to its third position above (see the 11 ) can be moved. The guide element 37, which can be designed as a roller, for example, reaches between the two side walls 34a, 34b via a vertical opening 38, so that after leaving the second position at the bottom, a linear displacement of the crockery basket 10 in the pull-out direction A (arrow) and in the insertion direction E (arrow) is blocked.

As in the second variant, the link arms 15, 16 also result in a movement of the guide rail 12 on a circular path in the third variant. In order to still allow the linear movement of the dish rack 10 in the vertical direction, the dish rack 10 moves relative to the guide rail 12. In particular, the dish rack 10 is pushed back along the guide rail 12 when it comes from its second position down to its third position up.

Correspondingly, in the third variant too, the crockery basket 10 or its center of gravity SP can be guided upwards close to the washing compartment 2, so that the household dishwasher 1 can be reliably prevented from tipping over.

Although only for the first and second variant (see the 3 or the 6 ) shown, a full extension can also be shown in the third variant, which means that the crockery basket 10 can be completely lowered in its second position outside the washing chamber 4 is located. For this purpose, the guide element 37 can be held on the crockery basket 10 with a corresponding spacer.

In general, moving the dish rack 10 between its three positions can be manual or partially or fully automated. For example, an electric motor can be provided, which pivots the link arms 15, 16 about their respective pivot points 17. Alternatively or additionally, a spring can also be provided, which takes on this task in at least one pivoting direction. Of course, the mechanism explained for the first to third variants can also be provided on the side wall 9 opposite the side wall 8 for the purpose of symmetrical support of the crockery basket 10 .

Reference List

1

domestic dishwasher

2

corpus; flush tank

3

door

4

washing chamber

5

Floor

6

Ceiling

7

back panel

8th

Side wall

9

Side wall

10

loading level

11

rail facility

12

guide rail

13

guide rail

14

Parallelogram link arrangement

15

control arm

16

control arm

17

pivot point

18

pivot point

19

guide device

20

link guide

21

scenery element

22

longitudinal central axis

23

Long hole

24

cones

25

guide device

26

guide lever

26a

End

26b

End

27

locking piece

27a

Page

27b

Page

28

pivot point

30

locking counterpart

31

opening

32

cones

33

guide device

34

guide rail

34a

Side wall

34b

Side wall

36

Section

37

guide element

38

opening

A

Extraction direction (arrow)

B

Latitude direction (arrow)

D

axis of rotation

E

Insertion direction (arrow)

S

apex

SP

main emphasis

SW

pivot axis

II

Opinion

IV

Opinion

Claims (10)

1. Household dishwasher (1), having a carcass (2), at least one loading level (10), at least one guide rail (12), along which the at least one loading level (10) can be shifted linearly between a first lower position and a second lower position of the same, wherein the at least one loading level (10) is arranged in the first lower position and inside of the carcass (2) and in the second lower position and at least partially outside of the carcass (2), at least one control arm (15, 16) which holds the at least one guide rail (12) pivotably on the carcass (2) for a movement of the loading level (10) between the second lower position and a third upper position of the same, wherein the at least one loading level (10) is arranged in the third upper position and at least partially outside of the carcass (2), and a guide facility (19), which guides the at least one control arm (15, 16) along a guide track (20), which deviates at least partially from a circular path, wherein the guide track (20) has an increasing ascent at least in regions in the pull-out direction (A), in which the at least one loading level (10) can be shifted out of the second lower position into the third upper position, and wherein the guide facility (19) has a sliding block guide (20) embodied on the carcass (2), and a sliding block element (21) attached to the control arm (15, 16), which engages into the sliding block guide (20), wherein the sliding block guide (20) is preferably embodied as a slot and the sliding block element (21) is embodied as a pin.
2. Household dishwasher (1) according to claim 1, characterised in that the guide track (20) has the form of a half parabola, the apex (S) of which lies on a longitudinal central axis (22) of the at least one control arm (15, 16) in the first lower position and/or in the second lower position of the at least one loading level (10).
3. Household dishwasher (1) according to claim 1 or 2, characterised in that the control arm (15, 16) is designed for a rotational and linear relative movement with respect to its pivot point (17) on the carcass (2), wherein the control arm (15 16) preferably has an elongated hole (23), into which a stud (24) arranged on the carcass (2) engages.
4. Household dishwasher (1), having a carcass (2), at least one loading level (10), at least one guide rail (12), along which the at least one loading level (10) can be shifted linearly between a first lower position and a second lower position of the same, wherein the at least one loading level (10) is arranged in the first lower position and inside of the carcass (2) and in the second lower position and at least partially outside of the carcass (2), at least one control arm (15, 16), which holds the at least one guide rail (12) pivotably on the carcass (2) for a movement of the loading level (10) between the second lower position and a third upper position of the same, wherein the at least one loading level (10) is arranged in the third upper position and at least partially outside of the carcass (2), and a guiding facility (25) which is designed to guide the at least one loading level (10) on a circular path between the second lower position and the third upper position, said circular path deviating from that upon which the at least one guide rail (12) can be moved, wherein the guide facility (25) has a guide lever (26), wherein the guide lever (26) is preferably hinged at its one end (26a) on the carcass (2) and at its other end (26b) pivotably engages with the at least one loading level (10) in the case of a linear shift of the same from the first lower position into the second lower position, and wherein the guide lever (26) has a pivot point (28) on the carcass (2), which lies below and/or in the pull-out direction (A), in which the at least one loading level (10) can be shifted linearly out of the first lower position into the second lower position, upstream of a pivot point (17) of the at least one control arm (15) on the carcass (2).
5. Household dishwasher (1) according to claim 4, characterised in that the guide facility (25) further comprises a detent (27) and a counter detent (30), wherein the other end (26b) of the guide lever (26) preferably has the detent (27) and the at least one loading level (10) has the counter detent (30), wherein the detent (27) and the counter detent (30), in a release state of the same, release a linear shift of the at least one loading level (10) relative to the guide lever (26), and in a blocking state of the same, block the linear shift, wherein the detent (27) or the counter detent (30) can be rotated about an axis of rotation (D) in the respective other of the detent (27) and the counter detent (30), wherein the axis of rotation (D) is preferably on the same axis as a pivot axis (SW) so that the other end (26b) of the guide lever (26) is pivotably hinged to the at least one loading level (10).
6. Household dishwasher (1) according to claim 5, characterised in that the detent or the counter detent has a C-shaped element (30) with a radial opening (31) and the respective other of the detent and the counter detent has a stud-shaped element (27) which can be introduced by means of the radial opening (31).
7. Household dishwasher (1), having a carcass (2), at least one loading level (10), at least one guide rail (12), along which the at least one loading level (10) can be shifted linearly between a first lower position and a second lower position of the same, wherein the at least one loading level (10) is arranged in the first lower position and inside of the carcass (2) and in the second lower position and at least partially outside of the carcass (2), at least one control arm (15, 16), which holds the at least one guide rail (12) pivotably on the carcass (2) for a movement of the loading level (10) between the second lower position and a third upper position of the same, wherein the at least one loading level (10) is arranged in the third upper position and at least partially outside of the carcass (2), and a guide facility (33), which is designed to guide the at least one loading level (10) along a guide path, which deviates from a circular path, and wherein the guide facility (33) has an in particular straight and/or vertical guide rail (34) arranged on the carcass (2) and a guide element (37) arranged on the at least one loading level (10), which comes into contact with the guide rail (34) by means of a linear shift of the at least one loading level (10) out of the first lower position into the second lower position and/or when the at least one loading level (10) is moved along the guide rail (34) between the second lower position and third upper position.
8. Household dishwasher (1) according to claim 7, characterised in that the guide path runs straight and/or vertically.
9. Household dishwasher (1) according to claim 7 or 8, characterised in that the guide element (37) is embodied as a roller or sliding element.
10. Household dishwasher (1) according to claim 7, 8 or 9, characterised in that the guide rail (34) comprises two parallel walls (34a, 34b), between which the guide element (37) can be inserted by means of an opening (38) and/or between which the guide element (37) is guided upward between the second lower position and the third upper position when the at least one loading level (10) is moved.

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