EP3641619B1 - Domestic dishwasher - Google Patents

Description

The present invention relates to a household dishwasher with a washing container, a washware receptacle for receiving washware, a lifting device which is designed to raise the washware receptacle from an initial position to an end position and to lower it from the end position to the initial position, a guide device with the help of which the Washware receptacle can be displaced from an initial state arranged inside the washing container to an end state arranged outside the washing container and vice versa, the lifting device comprising a lifting lever which is pivotably connected to the washing container and the guide device and has a guide groove which is designed to hold the wash ware receptacle in the end position to lock in the end state when the same is raised from the starting position to the end position and when it is lowered from the end position to the starting position, so that the washware receptacle is only in the Starting position can be shifted from the starting state to the end state and vice versa, and wherein the washware receptacle has a guide pin which is guided in the guide groove when the washware receptacle is raised from the initial position to the end position and when the washware receptacle is lowered from the end position to the starting position.

A household dishwasher has a washing container and at least one washware receptacle that can be displaced into and out of the washing container. In particular, such a household dishwasher can have a plurality of washware receptacles arranged one above the other, such as a lower basket, an upper basket or a cutlery drawer. Since the lower basket is arranged near a base of the washing compartment, it is necessary for loading or unloading the lower basket that the user kneels or bends down towards the lower basket.

The pamphlet DE 10 2014 213 986 A1 discloses a household dishwasher with a body, at least one loading level, at least one guide rail along which the at least one loading level is linearly displaceable between a first and a second position thereof, the at least one loading level in the first position below and inside the body and in the second position is arranged at the bottom and at least partially outside of the body, at least one link arm which holds the at least one guide rail for moving the loading plane between the second and a third position of the same pivotably on the body, the at least one loading plane in the third position at the top and is arranged at least partially outside the body, and a guide device which guides the at least one link arm along a guide path which at least partially deviates from a circular path.

The pamphlet DE 10 2014 210 721 A1 discloses a dishwasher with a body, at least one loading plane, at least one guide rail along which the at least one loading plane is linearly displaceable, at least one link arm which holds the at least one guide rail pivotably on the body, the link arm pivoting on the guide rail about a pivot axis is articulated, a blocking piece arranged on the at least one loading plane and a blocking counterpart arranged on the link arm, the blocking piece and the blocking counterpart in a release state thereof enabling a linear displacement of the at least one loading plane along the at least one guide rail and, in a blocking state thereof, a linear displacement lock the at least one loading plane along the at least one guide rail, the locking piece or the locking counterpart for adjusting this between the locked state and the released state about an axis of rotation in the respective The other of the locking piece or the locking counterpart is rotatable, the axis of rotation being coaxial with the pivot axis of the at least one link arm.

The pamphlet DE 10 2015 207 564 A1 discloses a lifting device for a washware receptacle of a dishwasher, the lifting device being set up to raise the washware receptacle from an initial position to an end position or to lower it from the end position to the initial position, the lifting device comprising a locking device which is configured to automatically switch the washware receptacle into to lock an intermediate position between the starting position and the end position, the locking device having an actuating element for unlocking the same and wherein the washware receptacle can only be displaced from the starting position to the end position or vice versa as long as the actuating element is actuated to unlock the locking device.

The pamphlet WO 2015/091646 A1 discloses a lifting device for a washware receptacle of a water-bearing household appliance, the washware receptacle optionally being displaceable into or out of a washing container of the water-bearing household appliance, the lifting device being designed to raise the washware receptacle when it is moved out of the washing container and lower it when it is moved into the washing container , wherein the lifting device has a drive device and a control device, the control device being set up to control the drive device during manual displacement of the washware receptacle in such a way that the drive device supports the manual displacement of the washware receptacle with an assisting force.

The pamphlet DE 10 2012 107 993 A1 discloses a sliding pivot mechanism of a shelf of a piece of furniture or household appliance for pulling out and lifting the shelf out of a body of the piece of furniture with at least two swivel arms which are rotatably fixed on at least one of the side walls of the body with a first end parallel to the plane of the side walls and are arranged parallel to one another, whereby at respective second ends of the swivel arms a guide rail is pivotably fixed parallel to the plane of the side walls in such a way that the guide rail can be pivoted from a lower position inside the body to a raised, upper position at least partially outside the body, at least one linearly displaceable in the guide rail Running rail on which the shelf is attached, at least on one of the side walls of the body, the sliding / pivoting mechanism having a locking mechanism arranged on the guide rail and on one of the pivoting arms to prevent a simultaneous pivoting and S Has sliding movement of the running rail with locking in the raised state.

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

Accordingly, a domestic dishwasher is proposed in a first aspect of the invention. The household dishwasher comprises a washing container, a washware receptacle for receiving washware, a lifting device which is set up to hold the washware receptacle from a Raising the starting position into an end position and lowering it from the end position to the starting position, a guide device with the aid of which the washware receptacle can be displaced from an initial state arranged inside the washing container to an end state arranged outside the washing container and vice versa, the lifting device being pivotable with the washing container and the guide device comprises lifting lever which has a guide groove which is designed to lock the washware receptacle in the end position when it is raised from the starting position into the end position and when it is lowered from the end position to the starting position, so that the washware receptacle can only be displaced in the starting position from the initial state to the final state and vice versa, the washware receptacle having a guide pin which, when the washware receptacle is lifted from the initial position to the end position and is guided in the guide groove when the washware receptacle is lowered from the end position to the starting position. The guide groove has a first guide section, which is used to catch and position the washware receptacle, a second guide section connected to the first guide section, which serves to block a movement of the guide devices while the washware receptacle is being moved from the starting position to an end position and vice versa the third guide section connected to the second guide section, which also serves to block movement of the guide devices while the washware receptacle is being moved from the starting position to an end position and vice versa, and a fourth guide section connected to the third guide section, which is used for possible system maintenance, since in this fourth Guide section, the washware receptacle can be removed from the guide groove on. The four guide sections form a U-shaped or approximately U-shaped guide groove. Furthermore, the four guide sections preferably have straight or approximately straight courses.

The first guide section and / or the guide devices can be set at an angle of 0 ° to + 2 ° to the horizontal. This adjustment enables a higher lifting height in the front area as well as a visually appealing design when raised when fully loaded.

The guide pin is in particular T-shaped or mushroom-shaped in cross section.

The washware receptacle preferably has two such guide pins, which are provided on opposite sides of the washware receptacle. The guide pin and the guide groove assigned to it each form a link guide for the lifting device. Such a link guide is preferably provided on both sides of the washware receptacle.

In particular, the guide pin is T-shaped in cross section. The guide pin has a rod-shaped shaft and a disk-shaped head arranged on the front side of the shaft. A diameter of the head is greater than a diameter of the shaft. The guide groove is designed to correspond to the geometry of the guide pin and surrounds it in a form-fitting manner. This can reliably prevent the guide pin from slipping out of the guide groove when the washware receptacle is raised and lowered. A positive connection is created when at least two connection partners engage or engage behind one another, in this case the guide pin and the guide groove.

This reliably ensures that the washware receptacle can only be moved into or out of the wash container when it is in the starting position. In this way, a collision of the washware receptacle with a further washware receptacle received in the wash container can be reliably prevented. Because the guide groove is provided, no additional components such as levers, springs, locking elements or the like are required to lock the washware receptacle. As a result, the lifting device can be made less complex. As a result, the household dishwasher can be manufactured inexpensively. The loading and unloading of the washware receptacle is made easier with the aid of the lifting device, since the washware receptacle can be raised for this purpose.

The washware receptacle is in particular a lower washware receptacle or a lower basket. In addition to the lower washware receptacle, the household dishwasher can also have an upper washware receptacle or an upper basket and a cutlery drawer arranged above the upper washware receptacle. Is in the starting position the lower washware receptacle is arranged in particular below the upper washware receptacle. In the end position, the lower washware receptacle is preferably arranged at the same level or slightly below the upper washware receptacle. The lifting lever comprises in particular a plate-shaped base section on which the guide groove is provided.

According to a first embodiment, the guide groove between the first guide section and the second guide section has a latching geometry, in particular a latching nose.

The latching geometry, in particular the latching lug, serves to block a movement of the guide devices while the washware receptacle is being moved from the starting position into the end position and vice versa.

According to a second embodiment, the guide pin cooperates with a spring-loaded locking bolt which engages outside the guide groove, or a spring element which is supported against the guide groove acts on the guide pin.

The spring-loaded locking bolt, which engages outside the guide groove, locks in the front end position of the washware receptacle outwards over the guide groove and serves to block movement of the guide devices while the washware receptacle is being moved from the starting position to the end position and vice versa. It is also preferably arranged so as to be movable on or approximately on the center line of the first guide groove.

The spring element acting on the guide pin, which is supported on the guide groove, ensures, among other things, that the guide pin is safe and effective via the locking geometry, in particular the locking lug, when a movement of the guide devices is blocked while the washware receptacle is being moved from the starting position to the End position and vice versa is feasible.

In a second aspect of the invention, a household dishwasher is also proposed. The household dishwasher comprises a washing container, a Washware receptacle for picking up washware, a lifting device which is set up to lift the washware receptacle from an initial position to an end position and lower it from the end position to the initial position, a guide device with the help of which the washware receptacle from an initial state located inside the washing compartment to an outside one of the washing container and vice versa is displaceable, wherein the lifting device comprises a pivotably connected to the washing container and the guide device lifting lever which has a guide groove which is designed to hold the washware receptacle in the end position when it is lifted from the starting position into the end position and to lock in the end state when the same is lowered from the end position to the starting position, so that the washware receptacle can only be displaced in the starting position from the starting position to the end position and vice versa, the Washware receptacle has a guide pin which is guided in the guide groove when the washware receptacle is raised from the starting position into the end position and when the washware receptacle is lowered from the end position into the starting position. The guide groove has a first straight guide section and a second straight or curved guide section connected to the first straight guide section, the second straight or curved guide section being inclined at an angle of inclination relative to the first straight guide section.

Furthermore, the first guide section is arranged parallel to the guide device in the starting position and perpendicular to the guide device in the end position.

The first straight guide section and the second straight or curved guide section intersect at the aforementioned apex. The first straight guide section and the second straight or curved guide section form a geometry which corresponds to the number one. The angle of inclination is, for example, 40 to 70 °, more preferably 45 to 65 °, more preferably 50 to 60 °, more preferably 55 °. However, the size of the angle of inclination is arbitrary.

The second guide section can in particular be curved in an arc shape, preferably in the shape of a circular arc. The second guide section can, however, have any geometry. With the help of the geometry of the second guide section the movement of the washware receptacle when it is raised from the starting position to the end position and vice versa can be controlled. As a result, the most linear possible stroke movement of the washware receptacle can be achieved.

Due to the arrangement described, the first straight guide section rotates by 90 ° in each case when the washware receptacle is moved from the starting position to the end position and vice versa. In the present case, an angle of 90 ° is to be understood as an angle of 90 ° +/- 10 °, more preferably 90 ° +/- 5 °, more preferably 90 ° +/- 1 °, more preferably exactly 90 °.

According to a further embodiment, the second guide section is arranged inclined to the guide device in the starting position and in the end position, the second guide section being inclined by 90 ° in the starting position relative to its orientation in the end position.

This means that when the washware receptacle is moved from the starting position to the end position and vice versa, the second guide section rotates by 90 ° in each case. In particular, the second guide section is inclined in the starting position by the aforementioned angle of inclination to the guide device.

According to a further embodiment, the guide groove is designed to guide the washware receptacle when it is raised from the starting position to the end position and when it is lowered from the end position to the starting position in such a way that a distance between the wash container and the washware receptacle is constant.

The fact that the distance is constant is to be understood as meaning that the distance changes only within a predetermined tolerance range when the washware receptacle is lifted and when it is lifted off. For example, the predetermined tolerance range is +/- 20 mm, more preferably +/- 10 mm, more preferably +/- 5 mm. The distance is defined in particular as a distance between a rear wall of the washware receptacle and a front edge of a loading opening of the washing container. In particular, the washware receptacle is guided with the aid of the guide groove in such a way that it is lifted from the starting position into the end position and vice versa executes an, in particular approximately, linear movement against a direction of gravity or, when lowering, in the direction of gravity. In particular, this means that the distance is constant, to be understood that the washware receptacle does not follow an arcuate movement of a pivot point of the lifting lever mounted on the guide device when it is raised and lowered.

According to a further embodiment, the guide groove limits a maximum extension path of the washware receptacle when it is displaced from the initial state to the final state.

This reliably prevents the washware receptacle from being pulled too far out of the washing compartment. The maximum pull-out path is defined in particular as a distance between the front edge of the loading opening and a front wall of the washware receptacle. In particular, when the maximum extension path is reached, a guide pin of the washware receptacle rests against an apex of the guide groove.

According to a further embodiment, the guide pin is out of engagement with the guide groove in the initial state and / or the guide pin comes into positive engagement with the guide groove when the washware receptacle is shifted from the initial state to the end state.

In the initial state, the guide pin is therefore not in the guide groove.

When the washware receptacle is shifted from the initial state to the final state, the guide pin automatically engages the guide groove and when the washware receptacle is shifted from the final state to the initial state, the guide pin is disengaged from the guide groove again.

According to a further embodiment, the guide groove has an insertion bevel for inserting the guide pin into the guide groove when the washware receptacle is displaced from the initial state to the final state.

The lead-in bevel is designed, in particular, in the shape of a funnel and has two mutually opposite side walls which are inclined towards one another. The guide groove ensures that the guide pin engages positively in the guide groove when the washware receptacle is displaced from the initial state to the final state.

According to a further embodiment, the lifting device comprises at least one first lifting lever which has the guide groove and at least one second lifting lever which is arranged at a distance from the at least one first lifting lever and which is pivotably connected to the washing container and the guide device.

That is, both lifting levers are both pivotably connected to the guide device and pivotably connected to the washing container. In particular, the lifting levers are pivotably connected to a side wall of the washing compartment. The guide device is in particular a so-called telescopic rail. The guide device has a first guide rail, a second guide rail displaceable linearly with respect to the first guide rail and a third guide rail arranged between the first guide rail and the second guide rail. The washware receptacle is attached to the second guide rail, and the lifting levers are pivotably attached to the first guide rail. For this purpose, the lifting levers have corresponding pivot points.

The lifting device preferably has two first lifting levers and two second lifting levers, which are arranged in pairs on both sides of the washware receptacle.

Accordingly, two guide devices are also provided, which are arranged on both sides of the washware receptacle. The guide devices can be part of the lifting device.

According to a further embodiment, the domestic dishwasher preferably comprises two guide devices, a first lifting lever and a second lifting lever being pivotably connected to the respective guide device.

In particular, a first guide device is provided, which is assigned to a first side wall of the washing container, and a second guide device, which is assigned to a second side wall of the washing container. The guide devices are in particular structurally identical and arranged in mirror image.

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

Further advantageous refinements and aspects of the domestic dishwasher are the subject matter of the subclaims and of the exemplary embodiments of the domestic dishwasher described below. In the following, the household dishwasher is explained in more detail on the basis of preferred embodiments with reference to the accompanying figures.

Fig. 1

eine schematische Perspektivansicht einer Ausführungsform einer Haushaltsgeschirrspülmaschine;

Fig. 2

eine schematische Seitenansicht einer ersten bevorzugten Ausführungsform einer erfindungsgemäßen Hebeeinrichtung und einer Spülgutaufnahme für eine Haushaltsgeschirrspülmaschine gemäß Fig. 1;

Fig. 3

eine schematische Teilansicht der ersten bevorzugten Ausführungsform der erfindungsgemäßen Hebeeinrichtung gemäß Fig. 2;

Fig. 4

eine schematische Schnittansicht einer Haushaltsgeschirrspülmaschine mit der ersten bevorzugten Ausführungsform der erfindungsgemäßen Hebeeinrichtung gemäß Fig. 2;

Fig. 5

eine weitere schematische Schnittansicht einer Haushaltsgeschirrspülmaschine mit der ersten bevorzugten Ausführungsform der erfindungsgemäßen Hebeeinrichtung gemäß Fig. 2;

Fig. 6

eine weitere schematische Teilansicht der ersten bevorzugten Ausführungsform der erfindungsgemäßen Hebeeinrichtung gemäß Fig. 2;

Fig. 7

eine schematische Teilschnittansicht der ersten bevorzugten Ausführungsform der erfindungsgemäßen Hebeeinrichtung gemäß Fig. 6;

Fig. 8

eine schematische Teilansicht einer zweiten bevorzugten Ausführungsform einer erfindungsgemäßen Hebeeinrichtung;

Fig. 9

eine schematische Perspektivansicht einer dritten bevorzugten Ausführungsform einer erfindungsgemäßen Hebeeinrichtung und einer Spülgutaufnahme für die Haushaltsgeschirrspülmaschine gemäß Fig. 1;

Fig. 10

eine weitere schematische Perspektivansicht der dritten bevorzugten Ausführungsform der erfindungsgemäßen Hebeeinrichtung und der Spülgutaufnahme für die Haushaltsgeschirrspülmaschine gemäß Fig. 9;

Fig. 11

eine schematische Teilschnittansicht der dritten bevorzugten Ausführungsform der erfindungsgemäßen Hebeeinrichtung und der Spülgutaufnahme gemäß Fig. 9;

Fig. 12

eine schematische Schnittansicht der Haushaltsgeschirrspülmaschine gemäß Fig. 1;

Fig. 13

eine weitere schematische Schnittansicht der Haushaltsgeschirrspülmaschine gemäß Fig. 1;

Fig. 14

eine weitere schematische Schnittansicht der Haushaltsgeschirrspülmaschine gemäß Fig. 1; und

Fig. 15

eine weitere schematische Schnittansicht der Haushaltsgeschirrspülmaschine gemäß Fig. 1.

Show it

Fig. 1

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

Fig. 2

a schematic side view of a first preferred embodiment of a lifting device according to the invention and a washware receptacle for a household dishwasher according to FIG Fig. 1 ;

Fig. 3

a schematic partial view of the first preferred embodiment of the lifting device according to the invention according to Fig. 2 ;

Fig. 4

a schematic sectional view of a household dishwasher with the first preferred embodiment of the lifting device according to the invention according to Fig. 2 ;

Fig. 5

a further schematic sectional view of a household dishwasher with the first preferred embodiment of the lifting device according to the invention according to Fig. 2 ;

Fig. 6

a further schematic partial view of the first preferred embodiment of the lifting device according to the invention according to FIG Fig. 2 ;

Fig. 7

a schematic partial sectional view of the first preferred embodiment of the lifting device according to the invention according to Fig. 6 ;

Fig. 8

a schematic partial view of a second preferred embodiment of a lifting device according to the invention;

Fig. 9

a schematic perspective view of a third preferred embodiment of a lifting device according to the invention and a washware receptacle for the domestic dishwasher according to FIG Fig. 1 ;

Fig. 10

a further schematic perspective view of the third preferred embodiment of the lifting device according to the invention and the washware receptacle for the domestic dishwasher according to FIG Fig. 9 ;

Fig. 11

a schematic partial sectional view of the third preferred embodiment of the lifting device according to the invention and the washware receptacle according to FIG Fig. 9 ;

Fig. 12

a schematic sectional view of the household dishwasher according to Fig. 1 ;

Fig. 13

a further schematic sectional view of the household dishwasher according to FIG Fig. 1 ;

Fig. 14

a further schematic sectional view of the household dishwasher according to Fig. 1 ; and

Fig. 15

a further schematic sectional view of the household dishwasher according to Fig. 1 .

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

the Fig. 1 shows a schematic perspective view of an embodiment of a household dishwasher 1.

The household dishwasher 1 comprises a washing container 2 which can be closed, in particular watertight, by a door 3. For this purpose, a sealing device can be provided between the door 3 and the washing container 2. The washing container 2 is preferably cuboid. The washing container 2 can be arranged in a housing of the domestic dishwasher 1. The washing compartment 2 and the door 3 can form a washing area 4 for washing items to be washed.

Door 3 is in the Fig. 1 shown in their open position. The door 3 can be closed or opened by pivoting about a pivot axis 5 provided at a lower end of the door 3. With the aid of the door 3, a loading opening 6 of the washing compartment 2 can be closed or opened. The washing compartment 2 has a floor 7, a ceiling 8 arranged opposite the floor 7, a rear wall 9 arranged opposite the closed door 3 and two side walls 10, 11 arranged opposite one another. The floor 7, the ceiling 8, the rear wall 9 and the side walls 10, 11 can be made of stainless steel sheet, for example. Alternatively, for example, the bottom 7 can be made of a plastic material.

The domestic dishwasher 1 also has at least one washware receptacle 12 to 14. Preferably, several, for example three, washware receptacles 12 to 14 can be provided, the washware receptacle 12 being a lower washware receptacle or a lower basket, the washware receptacle 13 an upper washware receptacle or an upper basket and the washware receptacle 14 a cutlery drawer. As the Fig. 1 also shows, the washware receptacles 12 to 14 are arranged one above the other in the washing container 2. Each washware receptacle 12 to 14 can optionally be moved into or out of the wash container 2. In particular, each washware receptacle 12 to 14 can be pushed into the washing container 2 in an insertion direction E (arrow) and pulled out of the washing container 2 in a pull-out direction A (arrow) counter to the insertion device E (arrow).

The washware receptacle 12 can also be lifted from an initial position to an end position, in which it is preferably arranged in front of the washware receptacle 13 and at approximately the same height as it, with a lifting device to be explained later. A first guide device 15 and a second guide device 16 are assigned to each washware receptacle 12 to 14. The guide devices 15, 16 are each arranged on both sides of the washware receptacles 12 to 14 assigned to them. The guide devices 15, 16 can be designed as guide rails, in particular as so-called telescopic rails.

the Fig. 2 shows a schematic side view of a first preferred embodiment of a lifting device 17 according to the invention and a washware receptacle 12 for a household dishwasher, such as those in FIG Fig. 1 is shown and described.

With regard to the structure and function of the lifting device 17 and the guide devices 15, 16, reference is made to the Figures 9 to 15 together with the associated description of the figures referenced; their disclosure content is hereby the subject of the description of Fig. 2 did.

The first lifting lever 18 of the lifting device 17 comprises a plate-shaped base section 27 protruding laterally out of this. The base section 27 is, in particular, formed in one piece with the first lifting lever 18. A guide groove 42 or guide groove is provided on the base section 27. A guide pin 32 provided on the washware receptacle 12 is guided in the guide groove 42. The guide groove 42 comprises a first guide section 43, a second guide section 44 connected to the first guide section 43, a third guide section 45 connected to the second guide section 44 and a fourth guide section 46 connected to the third guide section 45. The four guide sections 43 to 46 preferably form a U-shaped or approximately U-shaped guide groove 42 from.

the Fig. 3 shows a schematic partial view of the first preferred embodiment of the lifting device 17 according to the invention according to FIG Fig. 2 .

The first guide section 43 of the guide groove 42 is used to catch and position the washware receptacle, whereas the second guide section 44 and the third guide section 45 to block the movement of the guide devices 15, 16 ( Figures 9 to 15 ) while the wash ware holder 12 is being moved ( Fig. 2 ) from the starting position AP ( Fig. 2 ) to an end position ( Fig. 15 ) and vice versa. And finally, the fourth guide section 46 of the guide groove 42 is used for possible system maintenance, since the washware receptacle 12 ( Fig. 2 ) can be removed from the guide groove 42.

The first guide section 43 and / or the guide devices 15, 16 ( Figures 9 to 15 ) can be employed at an angle β of 0 ° to + 2 ° to the horizontal H. This adjustment enables a higher lifting height in the front area as well as a visually appealing design when raised when fully loaded. The guide groove 42 furthermore comprises an insertion bevel 38 for inserting the guide pin 32 into the guide groove 42.

Furthermore, the guide groove 42 has a latching geometry 47, in particular a latching nose, between the first guide section 43 and the second guide section 44. The locking geometry 47, in particular the locking lug, is used to securely fix the washware receptacle 12 ( Fig. 2 ) opposite the guide devices 15, 16 ( Figures 9 to 15 ).

the Figures 4 and 5 show schematic sectional views of a household dishwasher 1 ( Fig. 1 ) with a first preferred embodiment of the lifting device 17 according to the invention according to FIG Fig. 2 .

With regard to the course of the stroke and the function of the lifting device 17 and the guide devices 15, 16, reference is made to the Figures 9 to 15 referred; their disclosure content is hereby the subject of the description of Figures 4 and 5 did.

With the help of the shown guide devices 15, 16 ( Fig. 9 to 15 ) the washware receptacle 12 can be displaced from an initial state arranged inside the washing container 2 to an end state arranged outside the washing container 2 and vice versa. That is to say, the washware receptacle 12 can be displaced out of the washing container 2 in the pull-out direction A (arrow) and can be displaced into the washing container 2 in the insertion direction E (arrow).

The guide groove 42 is now set up to hold the washware receptacle 12 in the end position EP ( Fig. 15 ), when lifting the same from the starting position AP ( Fig. 4 ) to the end position EP ( Fig. 15 ) and when lowering the same from the end position EP ( Fig. 15 ) to the starting position AP ( Fig. 4 ) in the final state EZ ( Figures 13 to 15 ) to lock. This means that the wash ware holder 12 is only in the starting position AP ( Fig. 4 ) not locked and thus from the initial state AZ ( Fig. 12 ) to the final state EZ ( Figures 13 to 15 ) and vice versa. In other words, the washware receptacle 12 can only be pushed into and pulled out of the washing container 2 when the washware receptacle 12 is in the starting position AP ( Fig 4 ) is located. As a result, collisions between the washware receptacle 12 and the washware receptacle 13 ( Fig. 12 be prevented.

In particular, the guide groove 42 limits a maximum extension path AW ( Fig. 13 ) the washware receptacle 12 when it is moved from the initial state AZ ( Fig. 12 ) to the final state EZ ( Figures 13 to 15 ). If the maximum pull-out distance AW ( Fig. 13 ) is reached, the guide pin 32 is at the upper vertex 50 ( Fig. 5 ) of the guide groove 42 at The maximum extension path AW ( Fig. 13 ) is defined as a distance between a front edge 39 of the loading opening 6 and a front wall 40 of the washware receptacle 12. Between the starting position AP ( Fig. 4 ) and the end position EP ( Fig. 15 ) the washware receptacle 12, like the Fig. 5 shows can be placed in any number of intermediate positions.

The guide pin 32 is when the washware receptacle 12 is raised from the starting position AP ( Fig. 4 ) to the end position EP ( Fig. 15 ) and when lowering the washware receptacle 12 from the end position EP ( Fig. 15 ) to the starting position AP ( Fig. 4 ) always guided in the guide groove 42. In the initial state AZ ( Fig. 12 ), however, the guide pin 32 is out of engagement with the guide groove 42. When the washware receptacle 12 is displaced from the initial state AZ ( Fig. 12 ) to the final state EZ ( Figures 13 to 15 ) the guide pin 32 comes into positive engagement with the guide groove 28. For this purpose, the previously mentioned insertion bevel 38 is provided on the guide groove 28.

the Fig. 6 shows a further schematic partial view of a lifting device 17 according to FIG Fig. 2 .

Since the basic structure of this further embodiment of the guide groove 42 of the lifting device 17 in the Figs. 2 and 3 The illustrated and described embodiments of the guide groove 42 of the lifting device 17 corresponds, the disclosure content of which hereby becomes the subject of the description of the Fig. 6 did.

Instead of a locking geometry, in particular a locking lug, in the Fig. 6 A spring-loaded locking bolt 48 is used, which acts with the guide pin 32, as shown in the second embodiment. The spring-loaded locking bolt 48 engages outside the guide groove 42, i.e. it engages in the front end position of the washware receptacle 12 ( Fig. 2 ) to the outside over the guide groove 42 and fixes the washware receptacle 12 ( Fig. 2 ) opposite the guide devices 15, 16 ( Figures 9 to 15 ). It is also preferably arranged movably on or approximately on the center line M of the first guide groove 43.

the Fig. 7 shows a schematic partial sectional view of the first preferred embodiment of the lifting device 17 according to the invention according to FIG Fig. 6 .

The spring-loaded locking bolt 48 interacts with the guide pin 32 in such a way that, when the washware receptacle 12 ( Fig. 2 ) reaches its front end position and the guide pin 32 is brought to a stop in the first guide groove 42, outside of the guide groove 42 comes into engagement. The spring-loaded locking bolt 48 engages outwards over the guide groove 42 and fixes the washware receptacle 12 ( Fig. 2 ) opposite the guide devices 15, 16 ( Figures 9 to 15 ). The spring-loaded locking bolt 48 and the guide pin 32 can be arranged in a common unit 51.

the Fig. 8 shows a schematic partial view of a second preferred embodiment of a lifting device 17 according to the invention.

In this second embodiment, a spring element 49 acts on the guide pin 32. This spring element 49 ensures that the guide pin 32 is continuously supported against the guide groove 42, possibly also against a latching geometry 47, in particular a latching nose, and thus to fix the washware receptacle 12 ( Fig. 2 ) opposite the guide devices 15, 16 ( Figures 9 to 15 ) leads.

The lifting device 17 can be driven manually. The lifting device 17 can, however, also comprise a drive element, for example a spring, a gas pressure spring, an electric motor or the like. With the aid of the drive element, the washing ware receptacle 12 can be raised and lowered automatically, or at least be supported, so that the operating force applied by a user to the washware receptacle 12 can be reduced.

the Fig. 9 and 10 each show schematic perspective views of the washware receptacle 12 with a third preferred embodiment of a lifting device 17 according to the invention for raising and lowering the washware receptacle 12.

The lifting device 17 comprises two first pivot levers or lifting levers 18, of which in the Fig. 9 and 10 only one is shown, as well as two second pivot levers or lifting levers 19, of which in the Fig. 9 and 10 also only one is shown at a time. The lifting levers 18, 19 are rod-shaped. A first lifting lever 18 and a second lifting lever 19 are preferably arranged on both sides of the washware receptacle 12. As already mentioned, a guide device 15, 16 is also arranged on both sides of the washware receptacle 12, wherein in the Fig. 9 and 10 only the first guide device 15 is shown. The lifting device 17 can therefore also have the guide devices 15, 16 in addition to the lifting levers 18, 19. The guide devices 15, 16 are constructed identically. However, only one guide device 15 and a pair of lifting levers 18, 19 will be discussed below.

As already mentioned, the guide device 15 is designed as a telescopic rail. The guide device 15 comprises a first guide rail 20 on which the lifting levers 18, 19 are pivotably mounted. The first guide rail 20 can also be referred to as an inner rail. The guide device 15 further comprises a second guide rail 21 that is movable relative to the first guide rail 20. The second guide rail 21 is linearly displaceable with respect to the first guide rail 20 in a longitudinal direction L (double arrow) of the guide device 15. The second guide rail 21 can also be referred to as an outer rail. In order to enable the second guide rail 21 to move linearly with respect to the first guide rail 20 in the longitudinal direction L (double arrow), a third guide rail 22 is provided between the first guide rail 20 and the second guide rail 21. The third guide rail 22 can also be referred to as a connecting rail. The third guide rail 22 can be displaced linearly both in relation to the first guide rail 20 and in relation to the second guide rail 21 in the longitudinal direction L (double arrow).

The washware receptacle 12 is attached to the second guide rail 21. For example, the washware receptacle 12 can be clipped into the second guide rail 21 or placed on it. In particular, a frame (not shown) can be provided for this purpose, into which the washware receptacle 12 can be inserted or clipped and which is connected to the second guide rail 21.

As mentioned above, the first lifting lever 18 and the second lifting lever 19 are pivotably mounted on the first guide rail 20. The lifting levers 18, 19 are positioned at a distance from one another in the longitudinal direction L (double arrow). The first lifting lever 18 comprises a first pivot point 23 which is rotatably mounted on the first guide rail 20. Furthermore, the first lifting lever 18 comprises a second pivot point 24 which is mounted pivotably on the washing container 2 and in particular pivotably on one of the side walls 10, 11, preferably on the first side wall 10. Analogously to this, the second lifting lever 19 has a first pivot point 25 which is pivotably mounted on the first guide rail 20, as well as a second pivot point 26 which is pivotable on the washing container 2 and in particular on one of the side walls 10, 11, preferably on the first side wall 10, is stored.

The first lifting lever 18 further comprises a plate-shaped base section 27 protruding laterally out of this. The base section 27 is, in particular, formed in one piece with the first lifting lever 18. A guide groove 28 or guide groove is provided on the base section 27. In the guide groove 28 is provided on the washware receptacle 12, in the Fig. 9 and 10 Not shown, guided guide pin. The guide groove 28 comprises a first guide section 29 and a second guide section 30 connected to the first guide section 29. The guide sections 29, 30 intersect at an apex 31. The first guide section 29 is straight and the second guide section 30 can also be straight or curved, in particular be formed curved in a circular arc. The guide groove 28 thus forms the shape of the number one.

the Fig. 11 shows a schematic partial sectional view of the third preferred embodiment of the lifting device according to the invention and the washware receptacle according to Fig. 9 , in particular a schematic sectional view through the first lifting lever 18 and the washware receptacle 12.

As the Fig. 11 shows, a guide pin 32 is provided on the washware receptacle 12. In particular, such a guide pin 32 is provided on both sides of the washware receptacle 12. The guide pin 32 can be a wire pin. The guide pin 32 is received in the guide groove 28 and with this forms a link guide 33 of the lifting device 17. The guide pin 32 can have a rod-shaped shaft 34 and a disk-shaped head 35. A diameter of the head 35 is greater than a diameter of the shaft 34. The guide pin 32 is therefore T-shaped or mushroom-shaped in cross section. The guide groove 28 is designed to correspond to the geometry of the guide pin 32, so that the guide groove 28 encompasses the guide pin 32 in a form-fitting manner. A positive connection is created by the interlocking of at least two connection partners, in this case the guide groove 28 and the head 35 of the guide pin 32. This reliably prevents the guide pin 32 from slipping out of the guide groove 28.

the Figures 12 to 15 show various sectional views of the domestic dishwasher 1 according to FIG Fig. 1 . Based on Figures 12 to 15 The function of the domestic dishwasher 1 or the lifting device 17 is explained below.

As the Figures 12 to 15 show, the washing container 2 is arranged in a housing 36 of the domestic dishwasher 1. Provided below the washing container 2 is a base support 37 on which the washing container 2 is supported. The base carrier 37 is preferably a plastic component. In particular, the base carrier 37 can be a plastic injection-molded component. The base support 37 can be box-shaped and can accommodate electronic components, such as a drain pump, a circulation pump, a control device or the like of the domestic dishwasher 1.

In the Figures 12 to 15 the guide devices 15, 16, along which the washware receptacle 12 is guided, are not shown for the sake of simplicity. As the Fig. 13 shows, the second guide portion 30 is at an inclination angle α relative to the first guide section 29 inclined. The angle of inclination α can be, for example, 40 to 70 °, preferably 45 to 65 °, more preferably 50 to 60 °, more preferably 55 °. The guide groove 28 also includes an insertion bevel 38 ( Fig. 14 ) for inserting the guide pin 32 into the guide groove 28.

With the help of the guide devices 15, 16 (not shown), the washware receptacle 12 can be moved from an initial state AZ ( Fig. 12 ) into an end state EZ ( Fig. 13 ) and vice versa. That is to say, the washware receptacle 12 can be displaced out of the washing container 2 in the pull-out direction A (arrow) and can be displaced into the washing container 2 in the insertion direction E (arrow).

With the aid of the lifting device 17, the washware receptacle 12 can then, when it is in the final state EZ, that is, when the washware receptacle 12 is arranged completely outside of the washing compartment 2, from one in the Fig. 13 starting position AP shown in one of the Fig. 15 shown end position EP and vice versa. That is, the washware receptacle 12 can be raised from the starting position AP into the end position EP with the aid of the lifting device 17 and lowered from the end position EP into the starting position AP. In the end position EP, the washware receptacle 12 is preferably arranged at approximately the same height as the washware receptacle 13. In the starting position AP, the washware receptacle 12 is arranged in particular below the washware receptacle 13.

The guide groove 28 is now set up to lock the washware receptacle 12 in the end position EP, when it is raised from the starting position AP to the end position EP and when it is lowered from the end position EP to the starting position AP in the end state EZ. This means that the washware receptacle 12 is only not locked in the starting position AP and can thus be displaced from the starting position AZ to the end position EZ and vice versa. In other words, the washware receptacle 12 can only be pushed into and withdrawn from the washing compartment 2 when the washware receptacle 12 is in the starting position AP. In this way, collisions of the washware receptacle 12 with the washware receptacle 13 can be reliably prevented.

In particular, the guide groove 28 limits a maximum extension path AW ( Fig. 13 ) the washware receptacle 12 when it is moved from the initial state AZ to the final state EZ. When the maximum pull-out path AW is reached, the guide pin 32 rests on the apex 31 of the guide groove 28. The maximum pull-out distance AW is defined as a distance between a front edge 39 of the loading opening 6 and a front wall 40 of the washware receptacle 12 End position EP can be the washware receptacle 12, like the Fig. 14 shows can be placed in any number of intermediate positions.

Because the guide groove 28 has the second guide section 30, which is arranged at the angle of inclination α to the first guide section 29, the guide groove 28 is set up to lift the washware receptacle 12 when it is raised from the starting position AP into the end position EP and at the Lower the same from the end position EP to the starting position AP so that a distance AB ( Fig. 15 ) is approximately constant between the washing compartment 2 and the washware receptacle 12. In particular, the distance AB is defined as a distance between the front edge 39 of the washing container and a rear wall 41 of the washware receptacle 12.

The fact that the distance AB is constant is to be understood as meaning that when the washware receptacle 12 is raised from the starting position AP to the end position EP, the distance AB only varies within a specified tolerance range, for example in a range of +/- 10 mm from the Leading edge 39 removed or approached. In particular, this means that the distance AB between the washing container 2 and the washware receptacle 12 is constant, meaning that the washware receptacle 12 does not cause an arcuate movement of the first pivot point 23 of the first when it is raised from the starting position AP to the end position EP and vice versa Lifting lever 18 follows. As a result, the washware receptacle 12 can be raised and lowered essentially linearly.

As the Fig. 12 shows, the first guide section 29 of the guide groove 28 is arranged in the starting position AP parallel to the guide device 15 and in the end position EP perpendicular to the guide device 15. Furthermore, in the starting position AP and in the end position EP, the second guide section 30 is arranged inclined to the guide device 15. The second guide section 30 is in the Starting position AP inclined by 90 ° relative to its orientation in the end position EP. That is, when the washware receptacle 12 is moved from the starting position AP to the end position EP and vice versa, the guide groove 28 rotates by 90 ° in each case.

The guide pin 32 is always guided in the guide groove 28 when the washware receptacle 12 is raised from the starting position AP into the end position EP and when the washware receptacle 12 is lowered from the end position EP into the starting position AP. In the initial state AZ, however, the guide pin 32 is out of engagement with the guide groove 28. When the washware receptacle 12 is displaced from the initial state AZ to the final state EZ, the guide pin 32 comes into positive engagement with the guide groove 28 mentioned lead-in bevel 38 is provided.

In the case of the lifting device 17 explained above, no additional lever or additional locking element is required for locking the washware receptacle 12. The construction of the lifting device 17 is less complex. Furthermore, no additional elements, such as springs or the like, are required to lock the washware receptacle 12. Furthermore, no additional torque is exerted on the first lifting lever 18.

Although the present invention has been described on the basis of exemplary embodiments, it can be modified in many ways.

Reference symbols used

1

Household dishwasher

2

Rinsing container

3

door

4th

Wash cabinet

5

Swivel axis

6th

Loading opening

7th

floor

8th

ceiling

9

Back wall

10

Side wall

11th

Side wall

12th

Wash ware holder

13th

Wash ware holder

14th

Wash ware holder

15th

Guide device

16

Guide device

17th

Lifting device

18th

Lift lever

19th

Lift lever

20th

Guide rail

21

Guide rail

22nd

Guide rail

23

pivot point

24

pivot point

25th

pivot point

26th

pivot point

27

Base section

28

Guide groove

29

First section of the tour

30th

Second guide section

31

Vertex

32

Guide pin

33

Scenery tour

34

shaft

35

head

36

casing

37

Base carrier

38

Lead-in bevel

39

Leading edge

40

Front wall

41

Back wall

42

Guide groove

43

First section of the tour

44

Second guide section

45

Third section of the tour

46

Fourth section of the guide

47

Locking geometry; Locking lug

48

Locking bolt

49

Spring element

50

Upper vertex

51

unit

A.

Pull-out direction (arrow)

AWAY

distance

AP

Starting position

AW

Pull-out path

AZ

Initial state

E.

Direction of insertion (arrow)

EP

End position

EZ

Final state

L.

Longitudinal direction (double arrow)

M.

Center line

α

Tilt angle

β

angle

Claims (11)

1. Household dishwasher (1) having a rinsing container (2), a washing item receptacle (12) for receiving items to be washed, a lifting mechanism (17) which is designed to raise the washing item receptacle (12) from a starting position (AP) to an end position (EP) and to lower the washing item receptacle from the end position (EP) to the starting position (AP), a guide mechanism (15, 16) by means of which the washing item receptacle (12) can be moved from a starting state (AZ) arranged within the rinsing container (2) to an end state (EZ) arranged outside of the rinsing container (2) and vice versa,

   - wherein the lifting mechanism (17) comprises a lifting lever (18) connected in a pivotable manner to the rinsing container (2) and the guide mechanism (15, 16), said lifting lever having a guide groove (42) which is designed to arrest the washing item receptacle (12) in the end position (EP) when same is lifted from the starting position (AP) to the end position (EP) and in the end state (EZ) when same is lowered from the end position (EP) to the starting position (AP) so that the washing item receptacle (12) can only be moved from the starting state (AZ) to the end state (EZ) in the starting position (AP) and vice versa, and

   - wherein the washing item receptacle (12) has a guide pin (32) which is guided in the guide groove (42) when the washing item receptacle (12) is raised from the starting position (AP) to the end position (EP) and when the washing item receptacle (12) is lowered from the end position (EP) to the starting position (AP),

   characterised in that
   the guide groove (42) has a first guide portion (43), which serves for collecting and positioning the washing item receptacle (12), a second guide portion (44) connected to the first guide portion (43), which serves for arresting a movement of the guide mechanisms (15, 16) when the washing item receptacle (12) is moved from the starting position (AP) to an end position (EP) and vice versa, a third guide portion (45) connected to the second guide portion (44) which also serves for arresting a movement of the guide mechanisms (15, 16) when the washing item receptacle (12) is moved from the starting position (AP) to an end position (EP) and vice versa, and a fourth guide portion (46) connected to the third guide portion (45), which serves for potential system maintenance, since in this fourth guide portion (46) the washing item receptacle (12) may be removed from the guide groove (42) wherein the four guide portions (43 to 46) preferably form a U-shaped or approximately U-shaped guide groove (42).
2. Household dishwasher (1) according to claim 1, characterised in that the guide groove (42) has a latching geometry (47), in particular a latching lug, between the first guide portion (43) and the second guide portion (44).
3. Household dishwasher (1) according to claim 1 or 2, characterised in that the guide pin (32) cooperates with a spring-loaded latching bolt (48) which is brought into engagement outside the guide contour (42) or in that a spring element (49) which is supported against the guide contour (42) acts on the guide pin (32).
4. Household dishwasher (1) having a rinsing container (2), a washing item receptacle (12) for receiving items to be washed, a lifting mechanism (17) which is designed to raise the washing item receptacle (12) from a starting position (AP) to an end position (EP) and to lower the washing item receptacle from the end position (EP) to the starting position (AP), a guide mechanism (15, 16) by means of which the washing item receptacle (12) can be moved from a starting state (AZ) arranged within the rinsing container (2) to an end state (EZ) arranged outside of the rinsing container (2) and vice versa,

   - wherein the lifting mechanism (17) comprises a lifting lever (18) connected in a pivotable manner to the rinsing container (2) and the guide mechanism (15, 16), said lifting lever having a guide groove (42) which is designed to arrest the washing item receptacle (12) in the end position (EP) when same is lifted from the starting position (AP) to the end position (EP) and in the end state (EZ) when same is lowered from the end position (EP) to the starting position (AP) so that the washing item receptacle (12) can only be moved from the starting state (AZ) to the end state (EZ) in the starting position (AP) and vice versa and

   - wherein the washing item receptacle (12) has a guide pin (32) which is guided in the guide groove (28) when the washing item receptacle (12) is raised from the starting position (AP) to the end position (EP) and when the washing item receptacle (12) is lowered from the end position (EP) to the starting position (AP), characterised in that

   - the guide contour (28) has a first straight guide portion (29) and a second straight or curved guide portion (30) connected to the first guide portion (29), wherein the second straight or curved guide portion (30) is inclined at an angle of inclination (α) relative to the first guide portion (29), and

   - that the first guide portion (29) in the starting position (AP) is arranged parallel to the guide mechanism (15, 16) and in the end position (EP) is arranged perpendicular to the guide mechanism (15, 16).
5. Household dishwasher (1) according to claim 4, characterised in that in the starting position (AP) and in the end position (EP) the second guide portion (30) is arranged so as to be inclined relative to the guide mechanism (15, 16), wherein in the starting position (AP) the second guide portion (30) is inclined by 90° relative to its orientation in the end position (EP).
6. Household dishwasher (1) according to one of the preceding claims, characterised in that the guide groove (28; 42) is designed to guide the washing item receptacle (12) when said washing item receptacle is raised from the starting position (AP) to the end position (EP) and when said washing item receptacle is lowered from the end position (EP) to the starting position (AP) such that a spacing (AB) between the rinsing container (2) and the washing item receptacle (12) is uniform.
7. Household dishwasher (1) according to one of the preceding claims, characterised in that the guide groove (28; 42) defines a maximum withdrawal path (AW) of the washing item receptacle (12) when said washing item receptacle is moved from the starting state (AZ) to the end state (EZ).
8. Household dishwasher (1) according to one of the preceding claims, characterised in that in the starting state (AZ) the guide pin (32) is out of engagement with the guide groove (28; 42) and/or in that when the washing item receptacle (12) is moved from the starting state (AZ) to the end state (EZ) the guide pin (32) is brought into positive engagement with the guide groove (28; 42).
9. Household dishwasher (1) according to one of the preceding claims, characterised in that the guide groove (28; 42) has a lead-in chamfer (38) for inserting the guide pin (32) into the guide groove (28; 42) when the washing item receptacle (12) is moved from the starting state (AZ) to the end state (EZ).
10. Household dishwasher (1) according to one of the preceding claims, characterised in that the lifting mechanism (17) comprises at least one first lifting lever (18) which has the guide groove (28; 42) and at least one second lifting lever (19) which is arranged spaced apart from the at least one first lifting lever (18) and which is pivotably connected to the rinsing container (2) and the guide mechanism (15, 16).
11. Household dishwasher (1) according to claim 10, characterised by two guide mechanisms (15, 16), wherein in each case a first lifting lever (18) and a second lifting lever (19) are pivotably connected to the respective guide mechanism (15, 16).

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