DE102015201806A1 - Dishwasher, in particular household dishwasher - Google Patents

Abstract

The invention relates to a dishwasher (1) with a washing container (2) having a front container opening (3) for receiving items to be cleaned, wherein the front container opening (3) defines an opening plane (4). In the rinsing container (2), a loading plane (12) and a guide rail (14), along which the loading plane (12) is linearly displaceable between a first position (I) and a second position (II), are provided. The loading level (12) can be arranged in the first position (I) below and inside the washing container (2), in the second position (II) below and at least partly outside the washing container (2). Furthermore, a lifting device (18) is provided, which can be brought to a guide rail (14) for moving the loading plane (12) between the second position (II) and a third, above and partially outside of the washing container (2) located position (III) holds. Here, the lifting device (18) for the guide rail (14) for moving the loading plane (12) is largely, preferably completely, on the washing container (2) associated side of the front of the container opening (3) of the washing compartment (2) defined opening plane (4) arranged.

Description

The present invention relates to a dishwasher, in particular a domestic dishwasher.

The loading and unloading of a lower basket of a dishwasher is often perceived by users as being uncomfortable because it requires working in a stooped posture. Therefore, various mechanisms have been known from the prior art for raising the lower basket from a lower position thereof within the washing compartment of the dishwasher to an upper position outside the washing compartment.

The publication DE 10 2012 107 993 A1 discloses, for example, a sliding swivel mechanism adapted for this purpose for pulling out and lifting a shelf, for example a lower basket. The sliding pivot mechanism comprises at least two pivotal arms rotatably fixed to at least one of the side walls of the body with a first end parallel to the plane of the side walls and spaced parallel to each other, with a guide rail pivotally fixed parallel to the plane of the side walls at respective second ends of the pivot arms in that the guide rail is pivotable from a lower position within the body to a raised, upper position at least partially outside the body. Furthermore, it comprises at least one guide rail which can be displaced linearly in the guide rail, to which the tray is fastened. The sliding pivot mechanism has a locking mechanism arranged on the guide rail and on one of the pivot arms for preventing a simultaneous pivoting and sliding movement of the running rail.

The publication DE 20 2009 004 771 U1 discloses a device for adjusting the height of a guided in a household appliance, such as a dishwasher, at least one drawer guide tray, such as a lower basket. The device for height adjustment has at least one running rail, on which a tray is guidable and removable in an extension direction, and a fixable on opposite side walls of the household appliance height adjustment mechanism. The height adjustment mechanism, in turn, has two arms rotatably mounted on each of the side walls with a first end parallel to the plane of the side walls and spaced parallel to each other, two guide rails being securable to respective second ends of the arms rotatably parallel to the plane of the side walls such that the guide rails from a lower position in the household appliance in an upper position at least partially in front of the household appliance can be raised. Furthermore, at least one of the opposite side walls of the household appliance, an energy store can be fixed, which is in operative connection with one of the fixed arms on this side wall, that by the energy stored in the energy storage an increase or a reduction of the guide rails can be supported.

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

Accordingly, a dishwasher, in particular domestic dishwasher, with a box-shaped and a front-side container opening having Spülbehälter for receiving items to be cleaned, wherein the front-side container opening defines an opening plane, with a container opening closing, pivotally mounted about a horizontal axis container door, with a base support, on which the washing container is placed, and with a technical space for receiving mechanical and / or electrical components of the dishwasher, which is arranged between a formed on the base support base plate base and the washing compartment proposed. In the washing container of this dishwasher, in particular domestic dishwasher, at least one loading level and at least one guide rail, along which the at least one loading plane between a first position and a second position is linearly displaceable, are provided. Furthermore, the at least one loading level can be arranged in the first position below and inside the washing container, in the second position below and at least partially outside the washing container. For this purpose, a lifting device is provided, which holds the at least one guide rail for moving the loading plane between the second position and a third, above and at least partially located outside of the washing container position. The lifting device for the at least one guide rail for moving the loading level is also largely, preferably completely, arranged on the side of the washing container associated with the front of the container opening of the Spülbehälters and in particular vertically oriented opening plane.

Due to the fact that the described lifting device is largely, preferably completely, arranged on the side of the washing compartment defined by the front container opening of the Spülbehälters and in particular vertically oriented opening plane, protrude at a solid and optionally also raised loading level no components of the lifting device from the washing of the Dishwasher, especially household dishwasher, out. In this way, an improved safety standard for the user of the dishwasher, in particular domestic dishwasher, can be achieved, as compared to known from the prior art and from the washing at least partially outstanding sliding pivoting mechanisms for extracting and lifting a loading level no crushing and shear areas created and thus exist. This is then the case in particular in the case of a lifting device which is arranged and described completely in the washing container of the dishwasher, in particular household dishwasher.

Furthermore, with the described lifting device, an improved stability of the dishwasher, in particular household dishwasher, is achieved. Due to the fact that a large part, in particular of the complete part, of the lifting device remains, no additional weights and moments caused by it are displaced in an area located in front of the opening plane of the dishwashing machine, in particular a household dishwashing machine. Only and alone the extended and possibly also raised loading level becomes effective in terms of forces and moments similar to a solid upper loading level.

The lifting device described can be fixed in the washing container of the dishwasher, in particular household dishwasher, exclusively on the bottom side, exclusively on the side wall side or both on the bottom side and on the side wall side. Each of these types of fastening for the lifting device described has its own advantages, in particular with regard to stability, cleaning comfort, hygiene and the like.

The loading plane preferably has at least one guide rail on each of its two longitudinal sides, along which it can be displaced linearly between the first position and the second position. As a result, it is guided on both sides and thus sufficiently stable in their movements. Any forces and moments are recorded on both sides and intercepted safely.

Furthermore, the at least two guide rails are preferably arranged on or on at least one guide rod extending parallel to the front-side container opening and / or on or on a guide frame, which can be acted upon by the lifting device, about the at least two guide rails for moving the loading plane between the second Position and a third, at the top and at least partially located outside the rinse tank position. The guide rod may be a profile part with any profile cross section, whereas the guide frame in the simplest case may be a rectangular frame with any profile cross section. Both guide means provide the greatest possible synchronization between the at least two guide rails in addition to improved stability and strength of the lifting device described. In particular, the guide frame is characterized by a maximum stability in all respects.

The lifting device for the at least one guide rail for moving the loading level comprises mechanical and electrical components, wherein the plurality of mechanical components is preferably arranged within the box-shaped and a front-side container opening having Spülbehälters for receiving items to be cleaned. By this arrangement of the essential components of the described lifting device within the washing container of the dishwasher, in particular domestic dishwasher, an "impact" on the existing components of the dishwasher, in particular domestic dishwasher, largely reduced, indeed avoided. There are also advantages in terms of noise reduction and leakage safety, since no major connections to "outside" are available.

These explained properties and advantages are maximized when the mechanical components of the lifting device for the at least one guide rail for moving the loading level are arranged exclusively within the box-shaped and a front-side container opening having Spülbehälters for receiving items to be cleaned.

In an alternative embodiment, the mechanical components of the lifting device for the at least one guide rail for moving the loading plane preferably both within the box-shaped and a front-side container opening having Spülbehälters for receiving items to be cleaned as well as within the equipment room for receiving mechanical and / or electrical Components of the dishwasher, in particular household dishwasher, arranged. As a result, the advantage is achieved that "critical" components of the described lifting device, that is, the risk of moisture damage and corrosion underlying components, can be arranged in a safe area within the technical room.

Generally, the lifting device for the at least one guide rail for moving the loading level is largely, preferably completely, arranged on the washing compartment associated side of the front of the container opening of the washing container defined and in particular vertically oriented opening plane. This does not necessarily mean that it must be located exclusively inside the washing container or both inside the washing container and inside the technical room. For the most part, preferably completely, it can also be arranged outside these two named areas, for example both outside the washing compartment and outside the technical room, ie above the washing compartment, laterally of the washing compartment or behind the washing compartment. It is important that it is largely, preferably completely, arranged on the side of the washing container associated with the side of the front of the container opening of the washing and defined in particular vertically oriented opening plane.

The lifting device described in a first preferred embodiment comprises a scissor system with at least two scissor webs, wherein the at least one scissor web end of at least one cylinder is directly or indirectly acted upon. This creates a structurally relatively simple, process-reliable and also cost-effective lifting device.

It is advantageous if the at least one cylinder is arranged inside the washing container and if the at least one scissor bar can be acted upon directly by the at least one cylinder directly or with a lever. The cylinder can be arranged in a lower and rear region of the washing container of the dishwasher, in particular household dishwasher, and act on the associated scissors bar directly and virtually without loss.

Alternatively, the at least one cylinder can be arranged outside the washing container and preferably within the machine room for receiving mechanical and / or electrical components of the dishwasher, and the at least one scissors bar can be provided with at least one pulling means, in particular a cable pull, a strip pull or a chain, be indirectly acted upon. The cylinder is thus arranged far away from the rinsing liquor and consequently does not come into contact with it, so that entirely different, preferably also cheaper, materials can be used for it and its hermetic seal.

Again alternatively, the lifting device may comprise a scissor system with at least two scissor webs, wherein the at least one scissor web is longitudinally directly or indirectly acted upon by at least one preferably arranged within the washing container cylinder. It may result in forces and moments benefits.

In one embodiment of the scissors system, the scissors system may comprise two pairs of scissors webs, wherein two arranged in the same orientation and coupled by a scissor bar scissor bars of at least one preferably arranged within the rinsing cylinder via the scissor rod are acted upon directly or indirectly. This usually results in forces and momentary advantages, so that the scissors system can be implemented in total with less powerful components.

In a second preferred embodiment, the described lifting device comprises a cylinder system with at least one cylinder arranged below the loading plane. It is advantageous here if several cylinders are arranged in a pattern, for example on a straight line, in the corner or longitudinal points of a triangle or in the corner or longitudinal points of a quadrilateral, since in this way the lifting force is better and more uniformly introduced into the lifting device can.

The at least one hitherto cited cylinder of the lifting device is preferably designed as a single or double-acting hydraulic or pneumatic cylinder, since such a cylinder is optimally suited for such an application and also makes process-optimal control and regulation concepts feasible.

The described lifting device comprises in further preferred embodiments at least one circumferential belt drive with at least one belt and at least one pulley or at least one tooth system with at least one rack and at least one gear. These alternative lifting devices allow structurally simple and cost-effective lifting systems with favorable applications.

The loading level can generally be a storage or receptacle, in particular for crockery and / or cutlery. The loading level is preferably a crockery basket or a cutlery drawer. Particularly preferably, the at least one loading level is formed as a lower dish rack.

Further possible implementations of the invention also include not explicitly mentioned combinations of features or embodiments described above or below with regard to the exemplary embodiments. The expert will also individual aspects as improvements or Add supplements to the respective basic form of the invention.

Further advantageous embodiments and aspects of the invention are the subject of the dependent claims and the embodiments of the invention described below. Furthermore, the invention will be explained in more detail by means of preferred embodiments with reference to the attached figures.

Show it

1 a schematic perspective view of an embodiment of a known dishwasher, in particular household dishwasher;

2 a schematic longitudinal sectional view of a first embodiment of a dishwasher according to the invention, wherein a lower loading level is shown in a third position;

3 a schematic side view of a first alternative lifting device in the 2 shown first embodiment of a dishwasher according to the invention, wherein a lower loading level is shown in a third position;

4 a schematic side view of a second alternative lifting device in the 2 shown first embodiment of a dishwasher according to the invention, wherein a lower loading level is shown in a third position;

5 a schematic front view of the second alternative lifting device in the 4 shown first embodiment of a dishwasher according to the invention;

6 a schematic side view of a third alternative lifting device in the 2 shown first embodiment of a dishwasher according to the invention, wherein a lower loading level is shown in a third position;

7 a schematic plan view of the third alternative lifting device in the 4 shown first embodiment of a dishwasher according to the invention, wherein a lower loading level is shown in a third position;

8th a schematic longitudinal sectional view of a second embodiment of a dishwasher according to the invention, wherein a lower loading level is shown in a third position;

9 a schematic plan view of the second embodiment of the in the 8th dishwasher according to the invention shown;

10 a schematic side view of an alternative lifting device in the 8th shown second embodiment of a dishwasher according to the invention;

11 a schematic longitudinal sectional view of a third embodiment of a dishwasher according to the invention, wherein a lower loading level is shown on its way to a third position; and

12 a schematic longitudinal sectional view of a fourth embodiment of a dishwasher according to the invention, wherein a lower loading level is shown in a third position.

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

1 shows a schematic perspective view of a dishwasher 1 , in particular a household dishwasher. The dishwasher 1 has a box-shaped and a front-side container opening 3 having washing container 2 for receiving items to be cleaned. The front container opening 3 defines a particular vertically aligned opening plane 4 ,

The washing container 2 the dishwasher 1 is with a container opening 3 closing, pivotally mounted around a horizontal axis container door 5 provided so that the body is waterproof closable.

The washing container 2 and the container door 5 form a rinsing chamber 6 for rinsing dishes. The container door 5 is in 1 shown in their open position. By pivoting one at a lower end of the container door 6 provided pivot axis, the container door 6 closed or opened.

The washing container 2 For example, is cuboid and includes a container bottom 7 , one the tank bottom 7 opposite container ceiling 8th , one of the container door 5 opposite container rear wall 9 and two opposing container side walls 10 . 11 , The washing container 2 can be made of stainless steel, plastic or a combination of stainless steel plastic.

The dishwasher 1 furthermore has at least one loading level 12 on. The load level 12 is preferably a Spülgutaufnahme the dishwasher 1 , In particular, multiple loading levels 12 be provided, in each case one of the multiple loading levels 12 a lower crockery basket (lower basket), an upper crockery basket (upper basket) or a cutlery drawer of the dishwasher 1 can be. The multiple loading levels 12 are preferably one above the other in the washing compartment 2 arranged. Each loading level 12 is optional in a direction of insertion E (arrow) in the washing 2 in particular linearly or in an extension direction A (arrow) from this in particular linear outward displaced, ie between a first position I (dashed line) and a second position II in particular linearly displaceable. The first position I (dashed line) of the loading plane 12 is inside the rinse tank 2 , the second position II of the loading level 12 however, at least partially outside the washing container 2 intended. For this purpose, preference is given to both longitudinal sides of a respective loading plane 12 a leadership facility 13 with at least one guide rail 14 along which it is linearly displaceable between the first position I and the second position II.

The washing container 2 the dishwasher 1 is on a basic carrier 15 put on, being between the on the base support 15 trained base plate floor 16 and the washing container 2 a technical room 17 for receiving mechanical and / or electrical components of the dishwasher 1 is arranged.

2 shows a schematic longitudinal sectional view of a first embodiment of a dishwasher according to the invention 1 , wherein a lower loading level 12 in a third, above and at least partially outside the washing container 2 Position III is shown.

Furthermore, both in 2 as well as in the other figures, a loading level 12 shown in the form of a lower dish rack. The lower crockery basket 12 is opposite a guide rail 14 already related to 1 said guide device 13 linearly displaceable.

To an operator person loading and unloading the lower dish rack 12 to facilitate, this is by means of a lifting device 18 movable. The lifting device 18 spends the guide rails 14 the management facility 13 for moving the lower crockery basket 12 between the second item II ( 1 ) and a third, above and at least partially outside the washing container 2 situated position III.

The lifting device 18 for the guide rails 14 the management facility 13 for moving the lower crockery basket 12 is mostly, preferably completely, on the rinse tank 2 associated side of the front of the container opening 3 of the washing container 2 defined and in particular vertically oriented opening plane 4 arranged.

The guide rails 14 the management facility 13 are on or at least one parallel to the front container opening 3 extending guide rod 19 and / or on or on a guide frame 20 arranged, which or which of the lifting device 18 can be acted upon to the guide rails 14 the management facility 13 for moving the lower crockery basket 12 between the second item II ( 1 ) and a third, above and at least partially outside the washing container 2 position III.

The lifting device 18 for the guide rails 14 the management facility 13 for moving the lower crockery basket 12 includes several mechanical and electrical components 21 , where the majority of mechanical components 21 inside the box-shaped and a front-side container opening 3 having washing compartment 2 is arranged for receiving items to be cleaned.

In the first embodiment according to 2 are the mechanical components 21 the lifting device 18 for the guide rail 14 the management facility 13 for moving the lower crockery basket 12 exclusively within the box-shaped and a front-side container opening 3 having washing compartment 2 arranged for receiving items to be cleaned.

The lifting device 18 includes a scissor system 22 with at least two scissor bars 23 , wherein the at least one scissor bar 23 end of at least one within the washing container 2 arranged cylinder 24 is directly acted upon. Ideally, there are two pairs of scissor bars 23 provided, each longitudinal side of the guide device 13 are arranged and from a cylinder 24 together, if appropriate, in each case one cylinder 24 be charged.

In the first embodiment according to 2 is the single scissor web 23 directly from at least one inside the washing container 2 arranged cylinder 24 acted upon.

3 shows a schematic side view of a first alternative lifting device 18 the Indian 2 shown first embodiment of a dishwasher 1 , wherein a lower loading level 12 in a third, above and at least partially outside the washing compartment 2 position III is hinted at.

The feature of this first alternative lifting device 18 with a scissors system 22 is that the single scissor bar 23 along the side of the associated and within the washing 2 arranged cylinder 24 is indirectly acted upon. The indirect admission of the single scissors bar 23 can for example via a lever 25 respectively.

4 shows a schematic side view of a second alternative lifting device 18 the Indian 2 shown first embodiment of a dishwasher 1 , wherein a lower loading level 12 in a third, above and at least partially outside the washing container 2 position III is hinted at.

The second alternative lifting device 18 includes a scissor system 22 two pairs of scissor bars 23 with two arranged in the same orientation and by means of a scissors bar 26 coupled scissor bars 23 from the associated and within the washing container 2 arranged cylinder 24 over the scissor pole 26 directly, alternatively also indirectly, can be acted upon.

5 shows a schematic front view of the second alternative lifting device 18 the Indian 4 shown first embodiment of a dishwasher 1 , This second alternative lifting device 18 is in the width direction of the dishwasher 1 built in mirror image. Your scissors system 22 includes two pairs of scissors bars 23 with two arranged in the same orientation and by means of a scissors bar 26 coupled scissor bars 23 from the associated and within the washing container 2 arranged cylinder 24 over the scissor pole 26 directly, alternatively also indirectly, can be acted upon.

6 shows a schematic side view of a third alternative lifting device 18 the Indian 2 shown first embodiment of a dishwasher 1 , wherein a lower crockery basket 12 in a third, above and at least partially outside the washing container 2 position III is hinted at. This third alternative lifting device 18 is basically an alternative to the one in 2 shown lifting device 18 ,

The lifting device 18 for the guide rails 14 the management facility 13 for moving the lower crockery basket 12 is again mostly, preferably completely, on the rinse tank 2 associated side of the front of the container opening 3 of the washing container 2 defined and in particular vertically oriented opening plane 4 arranged.

The mechanical components 21 the lifting device 18 for the at least one guide rail 14 the management facility 13 for moving the loading level 12 are both inside the box-shaped and a front-side container opening 3 having washing compartment 2 for receiving items to be cleaned as well as within the technical room 17 for receiving mechanical and / or electrical components of the dishwasher 1 arranged. For example, the at least one cylinder 24 outside the washing container 2 and inside the engineering room 17 for receiving mechanical and / or electrical components 21 the dishwasher 1 arranged. Furthermore, the at least one scissor stay 23 from the at least one cylinder 24 end with at least one over deflection 28 guided traction means 27 , In particular a cable, a belt tension or a chain, indirectly acted upon.

7 shows a schematic plan view of the third alternative lifting device 18 the Indian 4 shown first embodiment of a dishwasher 1 ,

The third alternative lifting device 18 includes a scissor system 22 with two pairs of scissor bars 23 where two are arranged in the same orientation and from a single outside of the washing container 2 arranged cylinder 24 loadable scissors webs 23 via a connecting part 29 and two separate traction means 27 are indirectly acted upon. Of course, also for every scissor stay 23 an associated cylinder 24 including traction means 27 be provided.

8th shows a schematic longitudinal sectional view of a second embodiment of a dishwasher 1 , wherein a lower crockery basket 12 in a third, above and at least partially outside the washing container 2 position III is hinted at.

The lifting device 18 for the guide rails 14 the management facility 13 for moving the lower crockery basket 12 is mostly, preferably completely, on the rinse tank 2 associated side of the front of the container opening 3 of the washing container 2 defined and in particular vertically oriented opening plane 4 arranged.

The lifting device 18 this dishwasher shown 1 includes a cylinder system 30 with at least one under the leadership device 13 the loading level 12 arranged cylinder 31 , in particular telescopic cylinders. Should the cylinder system 30 several cylinders 31 can then be arranged in a pattern, for example on a straight line, in the corner or longitudinal points of a triangle or in the corner or longitudinal points of a quadrilateral.

9 shows a schematic plan view of the second embodiment of the in the 8th shown dishwasher 1 ,

The shown cylinder system 30 the lifting device 18 includes a total of four cylinders 31 , in particular telescopic cylinders, which are arranged in the vertices of a quadrangle. Of course, a different number of cylinders and a different arrangement pattern of the cylinder can be selected.

10 shows a schematic side view of an alternative lifting device 18 the Indian 8th shown second embodiment of a dishwasher 1 ,

The lifting device shown 18 this dishwasher 1 includes a cylinder system 30 with two under the leadership facility 13 the loading level, not shown arranged cylinders 31 , in particular telescopic cylinders. The two cylinders 31 are longitudinal and preferably centrally under the guide device 13 the loading level 12 arranged.

The at least one so far in the 2 to 10 shown cylinder 24 . 31 the lifting device 18 the dishwasher 1 is preferably designed as a single or double acting hydraulic or pneumatic cylinder.

11 shows a schematic longitudinal sectional view of a third embodiment of a dishwasher 1 , wherein a lower crockery basket 12 in a third position III is shown.

The lifting device shown 18 for the guide rails 14 the management facility 13 for moving the lower crockery basket 12 is mostly on the rinse tank 2 associated side of the front of the container opening 3 of the washing container 2 defined and in particular vertically oriented opening plane 4 arranged.

The lifting device 18 comprises at least one circumferential belt drive 32 with a belt 33 and several pulleys 34 of which at least one pulley 34 from a drive unit 35 , such as an electric motor, is driven. On both sides of the lower crockery basket 12 is in each case a circulating belt drive 32 attached to which the lower dish rack 12 via a guide device 13 with guide rails 14 is arranged.

12 shows a schematic longitudinal sectional view of a fourth embodiment of a dishwasher 1 , wherein a lower crockery basket 12 shown on his way to a third position III.

The lifting device shown 18 for the guide rails 14 the management facility 13 for moving the lower crockery basket 12 is mostly on the rinse tank 2 associated side of the front of the container opening 3 of the washing container 2 defined and in particular vertically oriented opening plane 4 arranged.

The lifting device 18 includes at least one dental system 36 with at least one rack 37 and with at least one gear 38 , On both sides of the lower crockery basket 12 is each about a guide device 13 with guide rails 14 a pair of gears 38 appropriate. One gear each 38 a couple is from one with the bottom dish rack 12 moving drive unit 35 , such as an electric motor, driven. The other gear 38 of the couple is driven indirectly. Along each of a rack 38 , Which has a toothing on both sides, such a lifting movement is conceivable.

• 1. Der untere Geschirrkorb wird bis zu einem, zum Beispiel auf der Innenseite der Behältertür angebrachten Anschlag, herausgezogen. Die Hubvorrichtung stört diese Bewegung des unteren Geschirrkorbs nicht oder nur minimal und sie muss die Bewegung auch nicht leisten können. Es könnte aber auch ein automatischer Ausschub des unteren Geschirrkorbs erfolgen, welcher jedoch von dem eigentlichen Hubvorgang des unteren Geschirrkorbs getrennt werden sollte.
• 2. Der Benutzer gibt nun, zum Beispiel per Knopfdruck, den Startimpuls für die Hubvorrichtung.
• 3. Die Hubvorrichtung startet mit dem Hubvorgang, sofern die Sicherheitserfordernisse, wie beispielsweise oberer Geschirrkorb ist eingefahren oder unterer Geschirrkorb ist auf Startposition für den Hubvorgang, erfüllt sind. Die Hubgeschwindigkeit des unteren Geschirrkorbs soll vorzugsweise gleichbleibend sein. Der untere Geschirrkorb soll in etwa drei bis acht Sekunden die gesamte Hubhöhe überwinden.
• 4. Der Hubvorgang endet, wenn die Höhe des oberen Geschirrkorbs erreicht ist oder wenn der Benutzer den Hubvorgang mittels Betätigen einer Art Stopp-Taste abzubrechen wünscht. Dann ruht die Hubvorrichtung und der untere Geschirrkorb bleibt auf seiner momentanen Höhe sicher stehen. Im Fall der Betätigung der Stoppfunktion muss dem Kunden anschließend eine Wahl zwischen den Optionen „Hochfahren” oder „Runterfahren” des unteren Geschirrkorbs offen stehen.
• 5. Wird von dem Benutzer die Option „Runterfahren” ausgewählt, zum Beispiel wiederum mittels Drücken einer Taste, so fährt der untere Geschirrkorb wieder vollständig auf die Ebene herab, auf der eine horizontale Bewegung des unteren Geschirrkorbs zurück in den Innenraum des Spülbehälters der Geschirrspülmaschine möglich ist.
• 6. Die automatische Hubbewegung ist nach Schritt 5 beendet. Es kann nun wieder eine manueller Einzugsbewegung des unteren Geschirrkorb zurück in den Innenraum des Spülbehälters der Geschirrspülmaschine erfolgen. Wie in Schritt 1 stört die Hubvorrichtung diese Bewegung nicht oder nur minimal und sie muss die Bewegung auch nicht leisten können.

The in the 2 to 12 shown lifting devices 18 a dishwasher 1 The following movement process of the lower dish rack can be common:

• 1. The lower crockery basket is pulled out to a stop, for example on the inside of the container door. The lifting device does not interfere with this movement of the lower crockery basket, or only minimally, and does not have to be able to perform the movement. But it could also be an automatic ejection of the lower rack basket done, but which should be separated from the actual lifting of the lower rack.
• 2. The user now gives, for example by pressing a button, the start pulse for the lifting device.
• 3. The lifting device starts with the lifting process, if the security requirements, such as upper dish rack is retracted or lower basket is on start position for the lifting process, are met. The lifting speed of the lower dish rack should preferably be consistent. The lower basket should overcome the total lifting height in about three to eight seconds.
• 4. The lifting process ends when the height of the upper dish rack is reached or when the user wishes to cancel the lifting operation by pressing a kind stop button. Then rest the lifting device and the lower dish rack remain secure at its current height. In the event of the stop function being operated, the customer must then have a choice between the "start up" or "shutdown" options of the lower dish rack.
• 5. When the user selects the "shut down" option, again by pressing a button, the lower rack again fully descends to the level allowing horizontal movement of the lower rack back into the interior of the dishwasher washing tub is.
• 6. The automatic lifting movement is completed after step 5. It can now be done again a manual retraction movement of the lower dish rack back into the interior of the washing of the dishwasher. As in step 1, the lifting device does not interfere with this movement, or only minimally, and does not have to be able to perform the movement.

Although the present invention has been described with reference to embodiments, it is variously modifiable. Thus, for example, it can also be realized in another type of household appliance, in particular in an oven or the like.

In summary, it should be noted that the invention provides an improved dishwasher, in particular a domestic dishwasher. The improvement is manifested in a dishwasher with an improved safety device having lifting device, which in particular has no squeezing and shear areas located outside the washing compartment of the dishwasher. And last but not least, an improved stability of the dishwasher is achieved with the described lifting device.

LIST OF REFERENCE NUMBERS

1

Dishwasher; Domestic dishwasher

2

rinse tank

3

container opening

4

opening plane

5

container door

6

rinsing chamber

7

container bottom

8th

vessel top

9

Container rear wall

10

Container sidewall

11

Container sidewall

12

Load level; lower crockery basket

13

guide means

14

guide rail

15

base support

16

Base support bottom

17

equipment room

18

lifting device

19

guide rod

20

guide frame

21

component

22

scissors system

23

scissors bridges

24

cylinder

25

lever

26

scissors rod

27

traction means

28

deflecting

29

connecting part

30

cylinder system

31

cylinder

32

belt drive

33

belt

34

pulley

35

drive unit

36

tooth system

37

rack

38

gear

A

Extension direction (arrow)

e

Insertion direction (arrow)

I

First position (located below and inside the rinse tank)

II

Second position (at the bottom and at least partially outside the rinse tank)

III

Third position (at the top and at least partially outside the rinse tank)

QUOTES INCLUDE IN THE DESCRIPTION

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

Cited patent literature

• DE 102012107993 A1 [0003]
• DE 202009004771 U1 [0004]

Claims (15)

Dishwasher ( 1 ), in particular household dishwasher, with a box-shaped and a front-side container opening ( 3 ) having washing containers ( 2 ) for receiving items to be cleaned, wherein the front-side container opening ( 3 ) an opening plane ( 4 ), with a container opening ( 3 ) closing, pivotally mounted around a horizontal axis container door ( 5 ), with a basic carrier ( 15 ) to which the washing container ( 2 ) and with a technical room ( 17 ) for receiving mechanical and / or electrical components ( 21 ) of the dishwasher ( 1 ), which is between one at the base ( 15 ) formed base support floor ( 16 ) and the washing container ( 2 ) is arranged, wherein in the washing container ( 2 ) at least one loading level ( 12 ) and at least one guide rail ( 14 ), along which the at least one loading level ( 12 ) between a first position (I) and a second position ( II ) is linearly displaceable, are provided, wherein the at least one loading level ( 12 ) in the first position (I) below and inside the washing container (I) 2 ), in the second position (II) below and at least partially outside the washing container (II) 2 ) is locatable, wherein a lifting device ( 18 ) is provided, which the at least one guide rail ( 14 ) for moving the loading level ( 12 ) between the second position (II) and a third, above and at least partially outside the washing container (II) 2 ) position (III), and wherein the lifting device ( 18 ) for the at least one guide rail ( 14 ) for moving the loading level ( 12 ) mostly, preferably completely, on the rinsing container ( 2 ) associated side of the front of the container opening ( 3 ) of the washing container ( 2 ) defined and in particular vertically oriented opening plane ( 4 ) is arranged. Dishwasher ( 1 ) according to claim 1, characterized in that the loading level ( 12 ) at its two longitudinal sides in each case at least one guide rail ( 14 ) along which they pass between the first position ( 1 ) and the second position (II) is linearly displaceable. Dishwasher ( 1 ) according to claim 2, characterized in that the at least two guide rails ( 14 ) on or at least one parallel to the front container opening ( 3 ) extending guide rod ( 19 ) and / or on or on a guide frame ( 20 ), which or which of the lifting device ( 18 ) is acted upon, the at least two guide rails ( 14 ) for moving the loading level ( 12 ) between the second position (II) and a third, above and at least partially outside the washing container (II) 2 ) position (III). Dishwasher ( 1 ) according to one of claims 1 to 3, characterized in that the lifting device ( 18 ) for the at least one guide rail ( 14 ) for moving the loading level ( 12 ) mechanical and electrical components ( 21 ), wherein the plurality of mechanical components ( 21 ) within the box-shaped and a front-side container opening ( 3 ) having washing compartment ( 2 ) is arranged for receiving items to be cleaned. Dishwasher ( 1 ) according to claim 4, characterized in that the mechanical components ( 21 ) of the lifting device ( 18 ) for the at least one guide rail ( 14 ) for moving the loading level ( 12 ) exclusively within the box-shaped and a front-side container opening ( 3 ) having washing compartment ( 2 ) are arranged for receiving items to be cleaned. Dishwasher ( 1 ) according to claim 4, characterized in that the mechanical components ( 21 ) of the lifting device ( 18 ) for the at least one guide rail ( 14 ) for moving the loading level ( 12 ) both within the box-shaped and a front-side container opening ( 3 ) having washing compartment ( 2 ) for receiving items to be cleaned and inside the technical room ( 17 ) for receiving mechanical and / or electrical components ( 21 ) of the dishwasher ( 1 ) are arranged. Dishwasher ( 1 ) according to one of the preceding claims, characterized in that the lifting device ( 18 ) a scissors system ( 22 ) with at least two scissor bars ( 23 ), wherein at least one scissor bar ( 23 ) end of at least one cylinder ( 24 ) can be acted upon directly or indirectly. Dishwasher ( 1 ) according to claim 7, characterized in that the at least one cylinder ( 24 ) within the washing container ( 2 ) is arranged and that the at least one scissor bar ( 23 ) of the at least one cylinder ( 24 ) end directly or with a lever ( 25 ) is indirectly acted upon. Dishwasher ( 1 ) according to claim 7, characterized in that the at least one cylinder ( 24 ) outside the washing container ( 2 ) and preferably within the technical room ( 17 ) for receiving mechanical and / or electrical components ( 21 ) of the dishwasher ( 1 ) and that at least one scissor bar ( 23 ) of the at least one cylinder ( 24 ) end with at least one traction means ( 27 ), in particular a cable, a belt tension or a chain, can be indirectly acted upon. Dishwasher ( 1 ) according to one of claims 1 to 6, characterized in that the lifting device ( 18 ) a scissors system ( 22 ) with at least two scissor bars ( 23 ), wherein the at least one scissor bar ( 23 ) longitudinally of at least one preferably within the washing container ( 2 ) arranged cylinders ( 24 ) can be acted upon directly or indirectly. Dishwasher ( 1 ) according to claim 10, characterized in that the shearing system ( 22 ) two pairs of scissor bars ( 23 ), wherein two arranged in the same orientation and by means of a scissor rod ( 26 ) coupled scissor bars ( 23 ) of at least one preferably within the washing container ( 2 ) arranged cylinders ( 24 ) over the scissor rod ( 26 ) can be acted upon directly or indirectly. Dishwasher ( 1 ) according to one of claims 1 to 6, characterized in that the lifting device ( 18 ) a cylinder system ( 30 ) with at least one under the management body ( 13 ) of the loading level ( 12 ) arranged cylinders ( 31 ). Dishwasher ( 1 ) according to one of claims 7 to 12, characterized in that the cylinder ( 24 ; 31 ) of the lifting device ( 18 ) is designed as a single or double acting hydraulic or pneumatic cylinder. Dishwasher ( 1 ) according to one of claims 1 to 6, characterized in that the lifting device ( 18 ) at least one revolving belt drive ( 32 ) with at least one belt ( 33 ) and at least one pulley ( 34 ) or at least one dental system ( 36 ) with at least one rack ( 37 ) and at least one gear ( 38 ). Dishwasher ( 1 ) according to one of the preceding claims, characterized in that the at least one loading level is a lower dish rack ( 12 ).

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