CH712330A2 - Hood dishwasher for holding several baskets. - Google Patents

Abstract

The dishwasher is in particular a commercial dishwasher, with a washroom (2), with a hood (3) to close the washroom (2) from above, and arranged in the washroom spraying means (10a, 10b, 10c). When the hood (3) is open, a first crockery basket (20a) can be introduced laterally into a receiving position (22) in the washroom (2). Then it can be lifted with a lifting mechanism (12) in an upper position (26), so that in the lower position, a second dish rack (20b) can be introduced. Thus, the contents of two baskets (20a, 20b) can be cleaned at the same time.

Description

Description FIELD OF THE INVENTION The invention relates to a dishwasher, in particular a commercial dishwasher, with a washroom, with a hood to close off the washroom, and with spraying means arranged in the washroom.

Background In dishwashers of this type, which are often referred to as hood dishwashers, a dish rack can be inserted laterally into the washroom. Then, usually, the hood is lowered and arranged in the washroom spraying are put into operation to clean the dishes in the dish rack.

SUMMARY OF THE INVENTION It is an object to provide a compact such high capacity apparatus.

This object is achieved by the dishwasher according to claim 1. Accordingly, the dishwasher has the following components: A washroom: This is the room in which the cleaning process takes place. - A hood: This closes the washroom from above during the washing process. When the hood is open, lateral, i. horizontal, a crockery basket be introduced into the washroom, in a position hereinafter referred to as the "receiving position". - Spraying agents: These are arranged in the washroom to wash the dishes during cleaning with process water, e.g. Cleaning solution and rinse water to apply. A lifting mechanism: the lifting mechanism is designed to lift a dish rack which is in the mentioned picking position, i. to move upward, in an "upper position", in such a way that in the receiving position space is created for receiving a second dish rack. The lifting mechanism has a movable dish rack which carries the dish basket at least during its movement. Furthermore, the lifting mechanism is advantageously designed to also lower the dish rack located in the upper position into the receiving position.

Further, according to the claims, the spraying means are arranged to clean the upper (first) crockery basket and the lower (second) crockery basket arranged thereunder in a "lower position".

With this solution it is achieved that two baskets can be cleaned simultaneously, whereby the capacity of the device is increased, without the device needs much more footprint. The loading of the dishwasher, however, remains easy for the user.

By the first crockery basket is transported from the receiving position up, the volume of space above the receiving position can be used. There is usually space available, in contrast to the area below the receiving position, where the space should preferably be available for the wash lye tank and / or other equipment components.

Preferably, the first crockery basket with the lifting mechanism can be moved vertically upwards. A movement "vertically upwards" is to be understood in particular as meaning a movement which, when the device is mounted to the vertical as intended, occupies an angle of at most 20 °, in particular not more than 10 °.

The lifting mechanism advantageously has a drive to raise and / or lower the first dish rack. This may be e.g. to act a motor or hydraulic drive. This drive further simplifies the operation of the device for the user.

The mentioned "lower position" may coincide with the mentioned "recording position". However, it is also conceivable that the second dish rack is moved from the receiving position to the lower position before performing the cleaning operation, e.g. something is lowered.

For a good cleaning of the items to be washed, the spraying means advantageously comprise upper spraying means above the upper position, middle spraying means arranged between the upper and the lower position and lower spraying means below the lower position.

In this case, in a first variant, the middle spraying means between a position below the receiving position and a position above the receiving position but below the upper position movable, preferably automatically moved. In this way, the middle spray can be brought into a position between the two baskets.

In a particularly advantageous embodiment, the middle spraying means are connected to the dish rack carrier in such a way that they follow its movements. In this way, the movements of the dish rack and the middle spraying means can be performed together, e.g. with a common drive.

In a second variant, the middle spraying means may be arranged at a fixed height between the upper and the lower position. In this case, they are designed so that the first dish rack with the dish rack on its way to the upper position can be passed to the middle spraying. In particular, in this variant, the middle spraying means may be arranged around a passage space through which the first crockery basket is passed.

The hood advantageously has a first, upper part and a second, lower part. The first part is arranged at a fixed height, and the second part is height adjustable. By lowering the second part of the washroom can be closed, in such a way that the first part forms the upper end of the washroom and the second part forms part of the lateral end of the washroom. This two-part design of the hood has the advantage that the height of the device can be kept relatively low.

In a further preferred embodiment, a guide is arranged on the back of the dishwasher, along which the dish rack is guided vertically movable. The back side is to be understood as being the device side opposite the user when the device is installed as intended. With this arrangement, the mentioned guide does not hinder the user in his work.

BRIEF DESCRIPTION OF THE DRAWINGS Further embodiments, advantages and applications of the invention will become apparent from the dependent claims and from the following description with reference to the figures. Showing:

1 is a schematic representation of a dishwasher with open hood and a first dish rack in the receiving position,

2 shows the dishwasher according to FIG. 1 with the first dish rack in the upper position, FIG.

2 with a second dish rack in the lower position and with closed ner hood, wherein the observer-side housing parts covered components are shown in dashed lines,

4 shows a first concrete embodiment of a dishwasher viewed from the user, wherein the observer-side housing walls are not shown,

5, the embodiment of FIG. 4 seen from the side, wherein the observer-side housing walls are not shown,

6 seen from obliquely above the embodiment of FIG. 4, wherein the hood and the front wall of the base are not shown,

Fig. 7 is a view corresponding to Fig. 6 of a second embodiment of the dishwasher

Fig. 8 is a view corresponding to Fig. 6 of a third embodiment of the dishwasher and

Fig. 9 is a view corresponding to Fig. 6 of a fourth embodiment of the dishwasher.

Modes for Carrying Out the Invention Basic Construction: [0018] The dishwasher according to FIGS. 1-3 has a device compartment 1 at the bottom. A washing room 2 and a hood 3 are arranged above it.

In the present embodiment, the hood 3 is connected via a rear wall 4 of the device with the equipment compartment 1.

The hood 3 is designed in two parts and has an upper part 5 and a lower part 6. The upper part 5 is held on the rear wall 4 at a fixed height. The lower part 6 is height adjustable relative to the upper part 5. By lowering the lower part 6 of the washroom 2 can be closed, as shown in Fig. 3. In this case, the upper part 5 forms the upper end of the washroom 2 and delimits this upwards and at the upper end also from the side. The lower part 6 forms part of the lateral end of the washroom 2, at its lower end.

In the embodiment shown, the lower part 6 forms in the closed state respectively the lower end of the side walls of the washroom 2, while the back of the washroom 2 is formed by the rear wall 4.

When the hood 3 is open, baskets can be laterally inserted into the device and removed from it. The term "lateral" should be understood to mean a substantially horizontal feed or removal. It can e.g. in directions forward, i. perpendicular to the rear wall 4, and / or to one or both sides, i. parallel to the rear wall 4, take place.

The vertical heights of the upper part 5 and the lower part 6 of the hood 3 are advantageously dimensioned so that - in the closed state (Fig. 3) of the lower part 6, the area between the upper part 5 and the equipment compartment 1 to closes, but - in the open state (Figure 1, 2) the lower part 6 the upper part 5 upwards not or only slightly (ie, advantageously not more than 10% of the total height of the device) surmounted.

Thus, the overall height of the device can be minimized.

In the raised position, the lower part 6 of the hood 3 is arranged on the outside of the upper part 5 of the hood 3.

The washroom 2 extends from a level 8 in the equipment room 1 to the upper part 5 of the hood. 3

In the washroom 2, upper spraying means 10a, middle spraying means 10b and lower spraying means 10c are arranged. In Fig. 1-3, these are each shown as a rotatable spray arm. However, as As will be described in more detail in the following, each spraying agent may e.g. also have two spray arms (for wash and rinse water separately) and / or other spray devices.

Next, a lifting mechanism is arranged in the washroom 2, which u.a. a dish rack 12, which is arranged vertically movable on a guide 14 on the rear wall 4 of the dishwasher. The dish rack 12 can be moved vertically by means of an electromotive, hydraulic or pneumatic drive (not shown) or manually between the lower position shown in FIG. 1 in the upper position shown in FIGS. 2 and 3.

The middle spray 10b are mechanically connected to the dish rack 12 and along with this along the guide 14 movable.

1-3 also schematically show a wash lye tank 16 below the washroom 2 and a pump 18 to carry cleaning liquid from the wash lye tank 16 up into the spray means 10a, 10b, 10c from where they enter the washroom 2 enters and eg flows back into the wash lye tank 16 again.

As can also be seen from Figs. 1 to 3, the apparatus shown is able to receive two baskets 20a, 20b simultaneously and one above the other in the washroom 2 and to clean their contents in a common wash. The corresponding procedure is described in more detail below.

In a first step, which is shown in Fig. 1, the user leads with the hood open 3 a first dish rack 20a in a receiving position 22 of the washroom 2 a. In this case, the dish rack 12 is in its lower position. Preferably, the dish rack 12 already carries the first dish rack 20a.

In the receiving position 22, the dish rack 20a is approximately at the same height as when it is on the dishwasher adjacent worktop 25, so that the transfer of the dish rack 20a from the countertop 25 in the receiving position 22 for the user as possible easy.

In a next step, the dish rack 12 is now moved along the guide 14 in its upper position shown in FIG. 2 and raises the first dish rack 20a in an upper position 26 in the region of the open hood 3. It also move the middle spraying 10b upwards into its operating position.

Thus, the receiving position 22 is free, so that there a second dish rack 20b can be introduced.

Thereafter, the lower part 6 of the hood 3 can be lowered, whereby the washing room 2 is closed, as shown in Fig. 3. Thus, the first crockery basket 20a is now in the upper position 26 and the second crockery basket 20b is in the lower position 28. In the embodiment according to FIGS. 1-3, the lower position 28 corresponds to the receiving position 22.

Next, there are now the upper spray 10a above the first dish rack 20a, the middle spray 10b between the two baskets 20a, 20b and the lower spray 10c below the second dish rack 20b.

In this configuration, both baskets can now be cleaned simultaneously.

After completion of the cleaning of the lower part 6 of the hood 3 is raised again to open the washroom 2. Then, first of all, the second dish rack 20b can be removed horizontally from the receiving position 22. Then, the dish rack 12 is lowered, so that the first dish rack 20a enters the receiving position 22, from where it can also be removed from the washroom 2.

First concrete embodiment: A first concrete embodiment of a dishwasher is shown in Figs. 4-6. This embodiment essentially corresponds to that according to FIGS. 1-3, so that in the following only the differences will be discussed.

In particular, it can be seen from FIG. 6 that the middle spraying means 10b have a first coupling connection 30. Furthermore, a second coupling connection 31 is arranged at a fixed height on the dishwasher. These form a releasable coupling for the line, with which the middle spray 10b are supplied with process water. To this end, the two coupling ports 30, 31 are designed so that they automatically couple with each other when the middle spray 10b reach their operating position, and they separate again from each other when the middle spray 10b are lowered from its operating position.

Specifically, in the embodiment shown, the first coupling port 30 is formed by an upwardly directed pipe section, and the second coupling port 31 through a downwardly directed pipe section. The diameters of the pipe sections as well as their mutual position are chosen so that they are coupled together when the central spray 10b reach their operating position.

It can also be seen in FIGS. 4-6 that all spraying means 10a-10c each comprise two spray arms, one for the final rinse operation and one for the actual washing process.

The dish rack 12 is slidably mounted on the guide 14 via a slide 34 (see Fig. 6). From Fig. 6, the drive motor 36 of the lifting mechanism can be seen to move the carriage 34 of the guide 14 along.

Second Concrete Embodiment: The second concrete embodiment of the apparatus shown in Fig. 7 differs from the first concrete embodiment in the structure of the middle spraying means 10b. While in the first embodiment two rotatable spray arms serve as the middle spray means 10b, in the second embodiment this task is performed by nozzles on a spray tube 38. The spray tube 38 is vertically movable and preferably fixedly connected to the dish rack 12, but not rotatable in contrast to the spray arms of the first embodiment.

Compared with the embodiment of FIG. 6, this second embodiment has the advantage that the overall height of the middle spraying agent 10b may be lower.

Third concrete embodiment: The third concrete embodiment of the device, which is shown in FIG. 8, differs from the first concrete embodiment again in the construction of the middle spraying means 10b.

Here, the middle spraying means 10b are arranged at a fixed height between the upper position 26 and the lower position 28 of the baskets.

In the embodiment shown, the spraying means are arranged as nozzle openings (not shown) along a pipe 40 around a passage space 42 through which the first crockery basket can pass on its way to the upper position 26.

The tube 40 extends in the embodiment shown in Fig. 8 in a horizontal plane, and preferably extends from the back wall 4 of the dishwasher forth one of the side walls along the front, then along the front wall and then along the other side wall back towards the back ,

Fourth Concrete Embodiment: The fourth concrete embodiment of the apparatus shown in Fig. 9 differs from the first concrete embodiment again in the structure of the middle spraying means 10b.

Here, the middle spraying means 10b are preferably arranged at a fixed height between the upper position 26 and the lower position 28 of the baskets.

In the embodiment shown, the middle spraying means 10b are designed as nozzle openings 50 along a horizontally extending tube 51. The tube is horizontally movable in a direction 52 in the direction perpendicular to its longitudinal direction. The tube 51 may e.g. be coupled via a flexible hose to the water supply.

To raise the first dish rack up to the upper position 26, the tube 51 is moved to the edge of the device so that it does not hinder the movement of the dish rack. To perform a cleaning, the tube 51 can be moved horizontally to spray water on the baskets in the upper position 26 and the lower position 28.

More generally, the middle spraying means 10b can be brought into a forward position in which they do not hinder the movement of the first dish rack between the upper and lower positions 26, 28, and further the central spraying means can be moved from the forward position to a cleaning position between the upper and lower positions 26, 28 are moved.

Preferably, the middle spraying means 10b can be reciprocated in the horizontal direction translationally (i.e., without rotation).

Claims (11)

The movement of the middle spray is preferably carried out by motor or hydraulic. Remarks: The dishwasher can also be operated with only a single dish rack. For this purpose, the upper or lower position 26 or 28 remains empty, preferably the upper position 26. In this case, only the empty position associated spraying 10a and 10c, preferably the upper spray means 10a, not to be supplied with process water. Preferably, for cleaning a single dish rack, the middle spray 10b is set in its operating position, e.g. 2 and 3, the upper position 26 remains empty and the crockery basket is in the lower position 28. The user may e.g. using appropriate input elements select whether he wants to operate the dish rack with only one or two baskets. Alternatively or additionally, sensors may also be provided which detect the number of baskets in the appliance. In the embodiments shown so far, the first dish rack 20a is placed on the dish rack 12, i. the dish rack 12 supports the first dish basket 20a from below. Alternatively, the dish rack 12 may be e.g. also be formed by a hanging device, in which the first crockery basket 20a is hung manually or automatically. While preferred embodiments of the invention are described in the present application, it should be clearly understood that the invention is not limited to these and may be practiced otherwise within the scope of the following claims. claims 1. Dishwasher, in particular commercial dishwasher, with a washroom (2), with a hood (3) to close the washroom (2) from above and with in the washroom (2) arranged spraying means (10 a, 10 b, 10 c), wherein when the hood (3) is open at least one first crockery basket (20a) can be inserted into a receiving position (22) in the washroom (2), characterized in that a lifting mechanism (12, 14) with a movable crockery basket support (12) is provided, to raise a first dish rack (20a) located in the washroom (2) from the pickup position (22) to an upper position (26) upward, in particular vertically upward, and space for receiving a second dish basket (20b) in the pickup position (22 ), and wherein the spraying means (10a, 10b, 10c) are arranged to the first dish basket (20a) in the receiving position (22) and arranged under the first dish basket (20a) in a lower position (28) second Gesch irrkorb (20b) to clean. 2. Dishwasher according to claim 1, wherein the lifting mechanism (12, 14) has a drive (36) to raise and / or lower the first crockery basket (20 a). 3. Dishwasher according to one of the preceding claims, wherein the lower position (28) is identical to the receiving position (22). A dishwasher as claimed in any one of the preceding claims, wherein the spraying means (10a, 10b, 10c) has upper spraying means (10a) above the upper position (26), middle spraying means (10b) disposable between the upper and lower positions (28) and lower Having spraying means (10c) below the lower position (28). 5. Dishwasher according to claim 4, wherein the middle spraying means (10 b) between a position below the receiving position (22) and an operating position above the receiving position (22) but below the upper position (26) movable, preferably automatically movable, are. A dishwasher according to claim 5, wherein the middle spraying means (10b) are connected to the dish rack support (12) so as to follow its movements. 7. Dishwasher according to one of claims 5 or 6, wherein the central spray means (10 b) have a first coupling connection (30), and wherein at a fixed height on the dishwasher, a second coupling connection (31) is arranged, wherein the first and the second coupling connection ( 30, 31) couple upon reaching the operating position and form a feed for process water to the middle spraying means (10b). A dishwasher according to claim 4, wherein the central spraying means (10b) are arranged at a fixed height between the upper and lower positions (26, 28) and the first crockery basket (20a) is arranged on the way to the upper by means of the crockery basket support (12) Position (26) on the central spraying means (10 b) is guided past, and in particular wherein the central spraying means (10 b) are arranged around a passage space (42) through which the first crockery basket (20 a) can be passed. A dishwasher according to any one of claims 1 to 4 or claim 8, wherein the central spraying means (10b) are capable of being brought into a transmission position in which they do not hinder movement of the first dish basket between the upper and lower positions (26, 28) , and wherein the central spraying means (10b) are movable from the transmitting position to a cleaning position between the upper and lower positions 26, 28, and more particularly wherein the central spraying means (10b) are translationally reciprocally movable in the horizontal direction. 10. Dishwasher according to one of the preceding claims, wherein the hood (3) has a first, upper part (5) and a second lower part (6), wherein the upper part (5) arranged at a fixed height and the lower part ( 6) is arranged adjustable in height, wherein by lowering the lower part (6) of the washroom (2) is closable by the upper part (5) an upper end of the washroom (2) and the lower part (6) part of a lateral conclusion of the washroom (2) forms. 11. Dishwasher according to one of the preceding claims, wherein on a rear side (4) of the dishwasher, a guide (14) is arranged, along which the dish rack (12) is guided vertically movable.