DE1628654A1 - Dishwasher - Google Patents

Description

Patent attorneys - -

Dipl. Ing-C Wallach Dipl. Ing. G. Koch.

Dr. T. Haibach * ß 9 QC c / ^{2Zf Ju! L}

8 Munich 2 1028554

Kaufingerstr. 8, Tel. 240276

DISHWASHER

The invention relates to a dishwasher with circularly moving water jet nozzles.

There are dishwashers of this type known at which the cleaning liquid under pressure through the nozzles of rotating spray devices against the, Crockery to be cleaned is pressed onto a crockery carrier and stored outside of the washing liquid. Except for the circular movement of the spray device or spray devices around perpendicular, circumferential to the axis Axes arranged on the crockery carrier guide the spraying device or spraying devices in these known machines and the crockery carrier also has a circular relative movement, for example by. Rotation of the Dish carrier around its own vertical axis when stationary Rotary axes of the spray devices or by rotation the axes of rotation of the latter along circular paths around the crockery carrier axis when the crockery carrier is stationary can be realized.

The spray devices are designed as nozzle gyroscopes, the diameter of which is approximately equal to half the diameter of the harness carrier are, with the on the Gesohirrträgerboden profiled movement paths of the nozzles in the Drive past the gear carrier center axle and at the Umfaag within the bounded by the dish rack base FlKehe remain.

The crockery carrier with its permeable bottom can optionally be designed like a basket. A circling Spray device is usually located under the dish rack with nozzles pointing upwards and optionally a second similar spray device can be used with downward directed nozzles above the crockery rack be present, which, however, does not circle around an axis in the known dishwasher, which coincides with the axis of rotation the spray device arranged below the crockery rack coincides.

A disadvantage of this known arrangement is that the dishes, for example speckles, which are near the edge the Geechirrträgers is placed on the bottom of the Outside through the out of the nozzles of the spray devices exiting rinsing jets are practically not directly acted upon and therefore not or only inadequately washed and is cleaned. Furthermore, it can happen that especially lighter dishes due to the intensity of the from below occurring rinsing jets is lifted from the bottom of the crockery rack or even knocked over «

The invention has primarily set itself the task of improving a dishwasher of the type described so that that a good washing and cleaning effect also with regard to the outer surfaces of the edge of the basket-shaped Dish carrier standing dishes is achieved.

According to the invention, this object is achieved in that 8 at least one in the dishwasher as a DOe gyro

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trained syringe device is provided, which is arranged with respect to the crockery carrier in such a way that the movement paths of the nozzles projected onto the bottom of the dish rack partially emerge from the area delimited by the dish rack bottom, with at least some nozzles of the nozzle circle pointing inwards are" - *

In the dishwasher there are preferably two such circular nozzles below or above the crockery carrier coaxial with nozzles directed against the crockery carrier and have inwardly directed nozzles as well as vertically positioned nozzles

The inventive arrangement and design of the circling spraying device or spraying devices will also provide good exposure to the outer surfaces of the edge of the crockery carrier standing crockery is guaranteed with rinsing jets, so that these crockery are equally good is cleaned and washed.

When arranging two in relation to the crockery carrier counteracting one another, equally trained and calibrated synchronously rotating spray device, the washing and cleaning effect on the outer surface of the crockery rack, in particular also on its edge, Glasses etc. completed and further reinforced, while at the same time lifting or falling over is prevented.

The invention is explained in more detail below with the aid of an example with reference to the drawing.

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The Fig.1,2 and 3 show the washing device schematie ch in elevation, in view from 'above and in perspective view and

4 illustrates the movement paths described by each nozzle in a horizontal projection.

Pig. 1 shows a spray device t rotating about a vertical axis 2 and a crockery carrier 3 rotating about an axis h for the dishes to be cleaned. In the present case, the spray device 1 consists of two arms 5 # 5 * at their ends three nozzles 6, 6 ¹ and 6 ″ are provided, from which jets of liquid emerge which are directed outwards, vertically and inwards Arms 9, 9 'each with three nozzles 10, 10' and to ^M at the ends of existing spraying device 7 are provided, with the jets 11, 11 * and 11 "emerging from these nozzles all downwards, namely outwards, perpendicular and are directed inwards. The axes of rotation 2 and 8 of the two spray devices 1 and 7 coincide and are parallel to the axis k of the dish rack

The dashed line 12 is purely schematically indicated by the housing of the dishwasher enclosed space.

The rotating and circulating movements of the spray devices 1,7 and the Gesohirrträgers 3 know mechanically or duroh reaction caused by the jets emerging from the nozzles and are preferably cut as a function of one another.

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The mutual position of the axis of rotation 2 is clear in FIG the spray device 1, the nozzles 6, 6 * and 6 "and of the crockery carrier 3 rotating around its axis 4 evident. It is particularly the position of the spray device 1 and the movement path 13 of the nozzles 6, 6 'and 6 "too note, it is essential that this path of movement 13 is due to the distance 14 between the axes 2 and 4 is approximately tangential to the axis 4, however from the, from the edge of the dish rack 3 described, Exits through the diameter 15 represented, Susseren trajectory. This arrangement is one of the essentials Features of the invention.

The axis of rotation 4 of the crockery carrier 3 are also shown in FIG and the axis of rotation 2 of the spray device 1, the nozzles 6, 6 * and 6 "and their movement path 13 can be seen.

FIG. 4 illustrates the movement path 13 described by each nozzle 6, 6 ', 6 "in relation to the horizontal one Bottom of the crockery carrier due to the relative movement, it being clearly visible that the liquid jets the Apply and hit the entire support level of the harness.

In other words, this figure clearly shows that of each nozzle (the same obviously applies to all other nozzles), if in any way a relative movement between the crockery carrier and the, is realized on a dflee arranged around its own Aohee rotating spray device. You can get through Feet holder of the position of the Aohee 2 of the rotating spray

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- Direction 1 and turning the crockery carrier 3 around its axis 4, or by holding the crockery carrier 3 and turning the spray device 1 with a circulating movement according to that of the axis of rotation 2! described path 20 or finally by rotating the crockery carrier 3 and simultaneous rotation of the spray device with a circulating and rotating movement, these movements can be brought about in any way mechanically or by reaction of the jets.

What has been said for the spray device 1 arranged below also applies in the opposite direction to that of the same arranged spray device 7

In the dishwasher according to the invention, spray devices with a relatively small number of nozzles are provided, so that the washing jets emerging from the nozzles have a large kinetic energy and the Spray devices themselves are extremely simple, although the complete application of all points of the dishes placed on the crockery carrier is ensured. the The small number of nozzles and their cross-section allow jets of liquid with a low-power pump to generate considerable force, while at the same time the risk of clogging is reduced, since the nozzles have larger unit durometers.

The peculiarity of the described trajectories and dl Inclination of the liquid jets, at least one of which is directed essentially perpendicular, allow alt these rays the dishes both inside and outside

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Λ Λ Λ Λ * k ä t Λ I ft rt

to meet and to clean evenly.

If one looks in particular at the pot 16 in FIG. 1, it can be seen that the inwardly directed jet of the nozzle 6 ″ hits the outer wall of the pot and practically rotates around the outer wall of the pot during a certain portion of the forward movement of the crockery carrier 3 however, nozzle 6 * exiting, vertical beam passes, without encountering obstacles, to the inner bottom of the pot 16 to which it impinges immediately and violently. Xn successive layers the rays of the nozzles 6 ¹ and 6 "then the entire inner wall of the pot . If the jets emerging from the nozzles 6, 6 * and 6 ^{H are} not caught in the interior of the pots, etc., they throw the cleaning liquid in various directions and hit other dishes. What was said for the pot 16 also applies to the glass 17, which was shown to identify one of the difficult cleaning effects. With regard to the plate 18, the effect of the jets is evident, the jets easily reaching any point, even if the plates are closely spaced from one another. The effect of the spray device 1 is completed by the spray device 7, which acts from above and in particular hits the outer surface of the pot 6 and the glasses that have been overturned.

With regard to the mutual position of the spray devices 1 and 7 i · * «* note that they are opposite one another lie, i.e. act on the same axis, with the jets emerging from the respective nozzles confronting each other.

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are directed 'in order to hit the harness from two opposite sides at the same time and to prevent that lighter dishes, such as cups, glasses, etc. are shifted or lifted by the intensity of the rays For better effectiveness of the rays, it is preferable that they be concentrated, i.e. substantially cylindrical, so that their energy comes into effect on limited areas of the hit objects.

Finally, it is also noteworthy that with the described mutual arrangement of the spray devices 1 and 7 ^{and the 68} crockery racks 3 and taking into account their relative movements, a particularly strong concentration of spinal jets occurs in the vicinity of the axis 4 of the crockery rack 3 (see especially 4) “This middle zone of the crockery carrier is therefore expediently used to accommodate crockery that is difficult to clean, in particular cutlery.

As FIGS. 1 and 3 illustrate schematically, for example the cutlery in the middle zone of the crockery rack in a relatively narrow space, disorganized

be tidied up and cleaned perfectly.

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Claims (3)

PATENT CLAIMS Dishwasher with a basket-shaped crockery carrier arranged within a housing and with at least one spray device designed as a DUsenkreisel which rotates around its own perpendicular axis arranged in the middle of the crockery carrier axis, this spray device and the crockery carrier also executing a circular relative movement, characterized in that, that the spray device (1 or 7) is arranged with respect to the dish rack (4) in such a way that the movement paths (13) of the nozzles (6, 6 ', 6 ") projected onto the bottom of the dish rack are partially limited by the bottom of the dish rack Exit area »with at least some nozzles (6" or 10 ^w ) of the spray device pointing inwards. 2. Dishwasher according to claim 1, characterized by two axially arranged nozzle rotors Ot7) u * ¹ "ter - or above the Geochirrträgere (3) with nozzles directed against this (6 _t 6 * _t 6 ⁿ or 10, 10 ·} 10 ^w ), which are both inward judges, are also also perpendicular. 3. Geβchirrspülmaschine according to claims 1-2, characterized marked that in the middle zone of the crockery carrier β (3) there is a place for the arrangement of crockery that is difficult to clean, in particular Beeteck is provided. 009824 / OAOO