WO1999065377A1

WO1999065377A1 - Mechanical dosing device

Info

Publication number: WO1999065377A1
Application number: PCT/EP1999/003929
Authority: WO
Inventors: Werner Strothoff; Wolfgang Huber; Gerold Carlhoff; Thomas Mai; Günter Hellmann
Original assignee: Henkel Ecolab Gmbh & Co. Ohg
Priority date: 1998-06-17
Filing date: 1999-06-08
Publication date: 1999-12-23
Also published as: EP1087689A1; JP2002518074A; CA2335199A1; AU4770799A; AU746952B2; DE19827007A1; PL344795A1

Abstract

The invention relates to a dosing device (13, 14) with a product reservoir (32) wherein the product is stored and product discharging means (29, 30; 47 to 49) which are arranged in their usual position on an industrial dishwasher (1). The aim of the invention is to reduce the installation requirements and to provide a dosing device which does not require any connections to a water or electricity supply. To this end, the dosing device (13, 14) has means (17, 18, 25 to 28; 50 to 52) which mechanically take up the closing motion of a door or a pivotable housing part (8) of the dishwasher (1) and mechanically transmit this movement to a product discharge means (29, 30; 47 to 49) in such a way that said product discharge means is moved in a manner corresponding to the closing motion, hereby directly causing a dose of the product stored in the reservoir (32) to be released into a tank (4) of the dishwasher (1).

Description

"Mechanical dosing device"

The invention is directed to a dosing device with a product storage space and product stored therein, as well as product discharge means, which is arranged in its use position on a commercial dishwasher.

Various possibilities are known for dosing detergent into the tank of a commercial dishwasher.

First of all, the simplest method is to add detergent to the dishwasher tank by hand. The disadvantage of this method is that the operator can come into contact with the alkaline cleaning agent, which should be avoided. In addition, due to human inadequacy, it can be forgotten to dose the product.

Another known method consists in automatically dosing in particular liquid product into the tank of commercial dishwashers by means of pumps or injectors. In this case, cleaning agents are pumped into the dishwasher by means of pumps, which are often controlled via the measured electrical conductivity of the cleaning liquor in the tank of the dishwasher or via a timer. Contact between the operating personnel and the cleaning agent is virtually impossible. The disadvantage of this method is that the pumps have to be assembled in a complex manner. Usually a hole has to be drilled in the dishwasher for the metering line and electrical connections have to be installed to control the pumps.

As an alternative, it is also known to meter flowable products with injectors that work according to the Venturi principle. Again, the disadvantage is that the injectors have to be assembled in a complex manner and that a water connection is necessary for the operation of the metering device.

Finally, there is a method and dosing devices suitable for this are known, in which powdered detergent is stored in a product storage area, discharged from the product storage area into a rinsing area by means of product discharge means and then flushed into the tank of a dishwasher using a water flow. Such a metering device to be arranged in its use position on a commercial dishwasher is known from DE-A-3721381. The disadvantage of this metering device is that it requires both a water connection and an electrical connection for the actuation of the product discharge means. This leads to correspondingly complex installation requirements for the metering device.

The invention is therefore based on the object of providing a solution which reduces the installation requirements and in which the metering device does not require any water and electrical connections.

In the case of a metering device of the type mentioned at the outset, this object is achieved according to the invention in that the metering device has means which mechanically absorb the closing movement of a door or a pivotable housing body part of the dishwasher and mechanically transfer it to the product discharge means in such a way that it is moved corresponding to the closing movement and immediately causes the metered delivery of product stored in the product storage space into a tank of the dishwasher.

The invention now creates a metering device which effects the metering of product solely on the basis of mechanically acting means. Mechanical means here only through direct power transmission. When doing Siervorrichtung the kinetic energy that occurs when closing a door or the pivoting down of entire housing body parts of the dishwasher that is often carried out for closing dishwashers and mechanically converted into a dosing process. The installation effort and the installation requirements are reduced in such a metering device, since it does not require a water and electrical connection. The purely mechanically operated dosing device is technically simple and robust and, due to purely mechanically acting components, not very susceptible to faults.

In an embodiment it is provided that the product discharge means receives the closing movement of the door or the pivotable housing body part directly by mechanical contact or that an actuating means mechanically records the closing movement and transmits it to the product discharge means. While it is fundamentally possible for parts of the pivotable door or the pivotable housing body part of the dishwasher to act mechanically directly on the product discharge means, the possibility of allowing the door or the housing body part to act on the product discharge means using an actuating means has the advantage that force deflections or force-increasing means can be provided, which lead to a compact design of the metering device.

Thus, the invention provides in a further embodiment that the actuating means mechanically absorbs the closing movement and transmits it mechanically to the product discharge means by means of interacting transmission means. With these transmission means in particular, the aforementioned power redirection, increase in force or a power transmission ratio can be implemented in a technically simple and inexpensive manner.

For the permanent functionality of the dosing device, it is advantageous if the actuating means is in permanent operative connection with the transmission means and / or the product discharge means is arranged on the dishwasher, whereby the invention is further characterized. The arrangement of the metering device on the dishwasher and the permanent operative connection of the actuating means with the transmission means and / or the product discharge means that the metering device is arranged in permanent operational readiness and workability on the dishwasher.

For the arrangement and mode of operation of the dosing device and the implementation of the dosing processes, it is particularly expedient if the actuating means is arranged on the door, in particular the front door, or the pivotable housing body part or the housing frame of the dishwasher in such a way that it transmits the closing movement either with a cooperates with the upper edge edge area of a housing frame part of the dishwasher and / or an actuating element assigned to it or with a lower edge edge area of the door or the pivotable housing body part and / or an actuating element assigned to it. In this way, the dosing device according to the invention can be used particularly well on a commercial dishwasher, in particular a one-tank machine.

There are two convenient installation locations for placing the dosing device on the dishwasher. Thus, the invention provides on the one hand that the metering device is fixedly attached to the door or the housing body part and in the area of the last quarter of the closing movement the actuating means strikes the upper edge area of the housing frame part or the actuating element assigned to it and until the closing movement ends mechanically Contact with the edge area or the actuator is moved by this. Alternatively, it is also possible, according to another embodiment of the invention, that the metering device is fixed in place on the housing of the dishwasher and in the area of the last quarter of the closing movement the actuating means from the lower edge edge region of the door or the housing body part placed thereon or that associated with this Actuator is moved until the closing movement ends.

A mechanically robust and less fault-prone metering device, which is particularly suitable for the conditions prevailing in kitchens and in particular on dishwashers, can be realized if the actuating means is a slide with a rack, the transmission means is a gear arrangement, preferably a gear transmission, and the product discharge means is one with the gear arrangement in Engaging piston threaded rod, whereby the invention is distinguished in one embodiment.

The discharge of the product from the product supply space and thus the product dosing can be realized particularly inexpensively when the product supply space is a cylinder body, in particular a cartridge with a movable piston head.

A technically easy to implement embodiment of the metering device according to a further development of the invention is that the rack of the slide when the slide comes into contact with the upper or lower edge area and / or the associated actuating element with the gear assembly and this in the further closing movement in Rotational movement offset and the gear arrangement in engagement or operative connection with the piston threaded rod moves the piston threaded rod into the product storage space. This represents an inexpensive way of converting the closing movement into a longitudinal movement of the piston of the threaded rod, the piston movement then displacing the product from the product storage space and thus metering. In order that the dosing device, after a flushing process that ends with the opening of the door or the swiveling up, that is to say an opening movement, of the pivotable housing body part, causes a new metering at the next closing process, the invention provides in a further development that the gear arrangement / piston rod connection has freewheel acting in the direction opposite to the closing movement. The freewheel now causes the actuating element to return to its starting position solely due to its gravity when the door is opened. In the case of a renewed closing process, the actuating element is again available for the mechanical conversion of the closing movement into the forward movement of the piston for metering product.

In order to be able to move it back into the starting position in the end position of the piston threaded rod when it has passed through the entire product supply, it is expedient according to a further development of the invention if the operative connection between the gear arrangement and the piston threaded rod is detachable, in particular by means of a lock nut. After loosening the operative connection between the gear arrangement and the threaded piston rod, the operating personnel can pull the latter back into the original starting position.

In order to be able to dose different dosing quantities with the dosing device, the invention is further characterized in an expedient embodiment in that the slide executes a stroke movement with a toothed rack, the stroke path being adjustable. Different strokes cause different rotations of the gear arrangement and thus a different axial axial displacement of the piston rod per stroke, which is identical to each closing movement. If the slide and the piston threaded rod are arranged at right angles to one another, this results in particularly favorable geometric conditions for realizing the metering device.

The slide, gear arrangement, piston rod and product storage space are expediently arranged on a base plate fastened to the outside of the dishwasher.

A particularly advantageous arrangement of the metering device in dishwashers, in particular commercial single-tank dishwashers, which usually have a gap between the lower housing frame part and the pivotable housing frame part or the pivotable door, is obtained if the base plate is arranged in a between the lower housing frame part and the door or the pivotable Housing body part of the dishwasher trained gap engaging holding arms is attached to the dishwasher.

In order to dispense the product stored in the product storage space, the invention provides in a further development that the product storage space has an exit opening with a subsequent connecting channel with a mouth opening directed into the tank of the dishwasher.

In this case, it is furthermore expedient if the connecting channel is also guided through the gap formed on the dishwasher. No additional holes are then necessary for the introduction of the connecting channel or the metering line into the interior of the dishwasher.

Another embodiment of the metering device according to the invention is characterized in that the actuating means is a driver finger, the transmission means is a cable pull with a deflection roller and the product discharge means is a piston pump with a piston moved by the deflection roller. Even with this This embodiment implements the closing movement of a door or a pivotable housing part of a commercial dishwasher in a technically uncomplicated manner solely by means of mechanical power transmission into a product delivery corresponding to the closing movement.

In order to ensure proper metering and proper refilling of the piston pump with product in this embodiment, the invention provides that the piston pump is in line connection via an inlet valve with the product storage space and has an outlet valve. When the piston of the piston pump moves forward into the piston chamber or pump chamber filled with product, the inlet valve is opened due to the pressure increase associated therewith and product is pumped into a connected metering line. During the subsequent backward movement of the piston, a vacuum is created in the pump chamber, which causes the inlet valve to open and product to flow out of the product storage chamber.

It is also advantageous in this embodiment if the product storage space is designed as an exchangeable container. When the entire stored product has been used up, a new container is simply inserted into the dosing device.

A technically simple to implement embodiment of the dosing device according to a further development of the invention is that when the driver finger comes into contact with the upper or lower edge region and / or the actuating element assigned to it as a result of the closing movement, the driver finger transmits this movement as tensile force to the cable pull , this sets the deflection roller in a rotational movement and by means of its rotational movement the piston of the piston pump is moved in the direction of the outlet valve. This embodiment can also be fastened to the dishwasher in order to arrange the dosing device in an easily accessible manner on the dishwasher in that the dosing device is fastened to the outside of the dishwasher with holding arms engaging in a gap formed between the lower housing frame part and the door or the pivotable housing body part.

This embodiment also provides, according to an embodiment of the invention, that the piston pump has an outlet line with a mouth opening directed into the tank of the dishwasher, whereby it may further be expedient that the outlet line is led through the gap formed on the dishwasher, which the invention finally also provides.

The invention is explained in more detail below with reference to the drawing.

This shows in:

1 schematically shows a commercial single-tank dishwasher with a metering device arranged thereon according to the first exemplary embodiment,

1a in an enlarged view a portion of Figure 1,

2 is a side view of the first embodiment in a partially sectioned illustration,

3 is a plan view of the first embodiment in a sectional view, 4 shows a schematic illustration of a commercial single-tank dishwasher with a metering device arranged thereon according to the second exemplary embodiment,

5 is a side view of the second embodiment in a schematic representation,

Fig. 6 is a front view of the second embodiment in a schematic representation

7 shows the side view of the second exemplary embodiment opposite the side view according to FIG. 5 in a schematic illustration

FIGS. 1 and 4 each show a schematic sectional illustration of a commercial dishwasher 1, in this case a single-tank dishwasher. In its lower part, the dishwasher consists of a housing frame part 3 provided with legs 2. The tank 4 is arranged in the housing frame part 3 cleaning liquor is sucked in, by means of pipelines 5 under pressure, spray nozzles 6, the so-called spray registers, and sprayed onto the dishes located in the upper part of the dishwasher 1 in order to put dirty dishes into the dishwasher 1 and to be able to remove cleaned dishes from the dishwasher 1 again , The dishwasher 1 has in its upper part a door which can be pivoted in the direction of the arrow 7 or a pivotable housing body part 8. This pivoting housing body part 8 can be opened by the operating personnel by means of a handle 9 to open upwards and to the sc 1 and 4 to pivot back down into the position shown in Figures 1 and 4 As can be seen from the enlarged partial view of part of the dishwasher 1 in Figure 1a, between the upper edge area 10 of the housing frame part 3 and the lower edge area 11 of the door or pivotable housing body part 8 a Gap 12 formed. This gap 12 is approximately 5 to 10 mm wide and forms a passage from the outside of the dishwasher 1 to the interior thereof approximately at the level of the storage surface for the dishes to be cleaned.

In the exemplary embodiment according to FIG. 1, a first embodiment of a metering device designated overall by 13 is fixedly attached to it in the lower region of the door, in particular the front door, or the pivotable housing body part 8. A second exemplary embodiment of a metering device 14 is fastened to the upper part of the housing frame part 3 in the exemplary embodiment according to FIG. 4.

As will be explained in more detail below, both metering devices 13, 14 meter in a purely mechanical manner, that is to say solely by direct force transmission corresponding to the closing movement of the door or the pivotable housing body part 8 in the metering devices 13, 14, into the tank 4 of the product Dishwasher 1. For this purpose, the metering devices 13, 14 have means 17, 18, 25-28; 50 - 52, which mechanically absorb the closing movement of the door or of the pivotable housing body part 8 and mechanically on product discharge means 29, 30; 47, 48, 49 transmit that they are moved corresponding to the closing movement of the door or of the pivotable housing body part 8 and directly causes the metered delivery of product stored in a product storage space 32 into the tank 4 of the dishwasher 1. Here, the means either interact with the upper edge area 10 of the housing frame part 3 (metering device 13, FIG. 1) or an actuating element (not shown) assigned to the upper edge area 10, or with the lower edge area 11 of the pivotable housing body part 8 (metering device 14, FIG. 4). or an actuating element (not shown) associated with the lower edge area 11. The metering device 13 has a base plate 15 with holding arms 16 arranged thereon. The holding arms 16 are cross-sectionally L-shaped in such a way that they encompass the lower edge region 11 of the pivotable housing body part 8 and the fixed attachment of the base plate 15 with the components of the metering device 13 arranged thereon on the outside of the pivotable housing body part 8 in the arrangement shown in FIG enable. In the arrangement of the metering device 13 on the dishwasher 1 shown in FIG. 1, the holding arms 16 are guided through the gap 12 in the closed position of the dishwasher 1 and are dimensioned accordingly. As a means of actuation, a slide 17 with a rack 18 fixed thereon is arranged so as to be displaceably guided on the base plate 15. During the closing movement of the pivotable housing body part 8, the lower edge region 19 of the slide 17 is placed on the upper edge edge region 10 of the housing frame part 3 in the last quarter of the closing movement and is guided in the direction of arrow 20 on the base plate 15 during a further closing movement. Here, the lower edge 19 of the slide 17 rests on the upper edge region 10 and in this way effects the mechanical force transmission or the mechanical transmission of the closing movement of the pivotable housing body part 8. This movement in the direction of arrow 20 continues until a stop pin, not shown , which is arranged in one of the bores 21 of the slide 17 opposite the edge 19, strikes against a stop edge 22 formed in the base plate 15. This stop position or end position of the slide 17 after the closing movement has ended, that is to say when the dishwasher 1 is closed, is shown in FIG. The dimensions of the slide 17, the base plate 15, and the arrangement of the metering device 13 on the outside of the pivotable housing body part 8 is such that this stop position or end position corresponds to the closed position of the pivotable door or the pivotable housing body part 8 of the dishwasher 1. The stop edge 22 is part of a step-shaped recess 23 in the base plate 15. In the present exemplary embodiment, the recess 23 has four steps, with each step corresponding to a bore 21 into which the stop pin (not shown) can be screwed in as desired. If the door or the pivotable housing body part 8 is now pivoted from the closed position back into an open position of the dishwasher, the slide 17 moves due to its own weight from the stop position shown in FIG. 2 in the direction of arrow 24 until the stop pin, depending on its positioning in one of the Bores 21 strikes a side edge of the step-shaped recess 23 opposite the stop edge 22. When the door or swiveling housing body part 8 is next pushed, the edge 19 of the slider 17 then rests on the upper edge area 10 of the housing frame part 3 and moves the slider in the direction of arrow 20 against the stop edge 22. Because of the step-shaped recess 23 there are depending on the arrangement of the stop pin in one of the bores 21 different stroke paths of the slide 17 between opposite stop edges. As explained below, the lifting movements are transmitted to a product discharge means via a gearwheel arrangement. So that the slider 17 falls back into its initial position due to gravity due to gravity when the door or the pivotable housing body part 8 is opened, the gear arrangement is equipped with a freewheel 28 acting in this direction. To increase the dead weight of the slide 17, an additional weight, that is to say a corresponding mass body, can be attached to the lower region thereof, which is not shown.

In order to transmit the stroke movement of the slide 17 in the direction of the arrow 20 to the product discharge means, the metering device 13 has a gear arrangement consisting of gear wheels 25 to 27, in the present case a gear transmission. The gears 25 to 27 are mutually permanent Active connection and the gear 25 is in permanent engagement with the rack 18. In addition, the gear arrangement has the freewheel 28. When the slide 17 moves in the direction of the arrow 20, the gear 27 is in engagement with a piston threaded rod 29, which is deactivated by means of the freewheel 28 when the slide 17 moves in the direction of the arrow 24. When the slide 17 is actuated in the direction of the arrow 20, the movement of the slide 17 is transmitted to the toothed wheel 25 by means of the toothed rack 18 and this is set in rotation. Because of the permanent operative connection between the gears 25 to 27, the piston threaded rod 29 with the piston 30 arranged thereon is simultaneously moved in the direction of the arrow 31. During a subsequent movement of the slide 17 in the direction of the arrow 24, the piston threaded rod 29 then remains in the assumed position due to the freewheel 28, only to be moved further in the direction of the arrow 31 only when the slide 17 moves in the direction of the arrow 20 next . A product storage space 32 is formed in the direction of arrow 31 opposite piston 30. With each stroke of the slide 17 in the direction of arrow 20, the piston 30 is moved deeper in the direction of arrow 31 into the product reservoir 32. The product storage space 32 is a commercially available, cylindrical cartridge with a locking piston on the bottom. This cylindrical cartridge has an outlet opening in the form of a nipple 33 with an external thread. This nipple 33 is screwed into an internally threaded bore 34 of the metering device 13. An outlet channel 35 adjoins the bore 34 and ends in the form of a hose connector 36. The bore 34, the connecting channel 35 and the hose connector 36 are formed in or on a cartridge adapter 37 arranged pivotably on the base plate 15. The cartridge adapter 37 can be pivoted from the dosing position shown in FIG. 2 into the refill position shown in dashed lines in FIG. 3. In this refill position, the cylindrical cartridge 32 is easy to replace. With each stroke of the slide 17 in the direction of arrow 20, the piston 30 is now moved further in the direction of arrow 31 into the product storage space 32 or the cartridge. As a result, the product stored therein is pressed into the bore 34 and the connecting channel 35. Due to the defined stroke movement of the slide 17 in one of the bores 21, depending on the position of the stop pin, and the gear ratio, which is fixed due to the gear arrangement, the piston 30 is moved in a defined manner into the product storage space 32 for each stroke due to the rotational movement of the piston threaded rod 29. This results in a product delivery that is precisely defined on the basis of the predefined geometric relationships, that is to say a metered product delivery from the product storage space 32. A connecting channel 38 in the form of a hose is arranged on the hose connector 36, as can be seen schematically in FIG. 1. This optionally detachable connecting channel 38 in the form of a hose is led through the gap 12 into the interior of the dishwasher 1 and ends with its mouth opening oriented towards the tank 4 above the tank 4 in the dishwasher.

A lock nut 39 is also part of the transmission means. The lock nut 39 is under the action of the tensile force of a rubber ring 40 and effects the engagement of the gearwheel arrangement with the piston threaded rod 29. This engagement position is by means of a cone 41 that can be inserted into the lock nut 39 against the force of the rubber ring 40 repeal. In particular when the piston threaded rod 29 has been moved completely into its end position in the direction of arrow 31 into the product reservoir 32, the cone 41 connected to it via connecting rods 43 is moved into the lock nut 39 by actuating a hand knob 42 and thus the gear engagement to the piston threaded rod 29 canceled. The piston threaded rod 29 can then be moved back into the starting position shown in FIG. 2 against the direction of the arrow 31 by means of a handle 44 arranged on the piston threaded rod 29. Since the handle 44 moves continuously together with the piston threaded rod 29, this also represents an optical full level indicator

On the rear side of the base plate 15 facing the dishwasher 1 in the use position of the metering device 13, slots 45 and recesses 46 are formed in which suction cups (not shown) can be arranged in order to support the adherence of the metering device 13 to the outside of the dishwasher 1

As can be seen from FIGS. 1 and 4, the metering devices 13 and

14 arranged on the outside on the front side of the dishwasher 1, which can be easily reached by the operating personnel, so that the dosing devices can be easily reached by the operating personnel. In particular, product can easily be refilled in the product storage space 32. Liquid, gel-shaped, pasty or cream-shaped product can be stored in the product storage space 32 If the holding arms 16 and the connecting channel 38 are guided through the gap 12 into the interior of the machine, it is not necessary to drill the metering devices 13 and 14 holes in the frame or the housing of the dishwasher 1. The metering devices 13 and 14 bring about metered product delivery solely due to mechanical power transmission and do not require a water or electricity connection. The metering devices 13, 14 are designed such that 1, 5 to

15 ml of product from the product storage space 32 are metered into the tank 4 of the dishwasher 1

With the help of the cone 41 and the lock nut 39, it is also possible to open or close the door or the pivotable housing part 8 without product being dispensed. For this purpose, the cone 41 is pressed into the lock nut 39 so that the operative connection between the gear arrangement and piston threaded rod 29 lost In the metering device 14, the product discharge means consists of a piston pump 47 with an associated piston 48 and a piston rod 49 arranged thereon. Furthermore, the actuation means consists of a driving finger 50 and the transmission means consist of a cable 51 and a deflection roller 52.

The piston pump 47 has an inlet valve 53 and an outlet valve 54. Via the inlet valve 53, the pump chamber of the piston pump 47 is in line connection with the product storage chamber 32 designed as a cylindrical refill bottle. An outlet line 55 connects to the outlet valve 54. Just as in the case of the metering device 13, the end opening 38 of the outlet line 55, optionally formed by a hose, ends inside the dishwasher 1 with an orientation towards the tank 4, the outlet line 55 likewise being guided through the gap 12 in the dishwasher 1.

The dosing device 14 is hooked with its holding arms 16 in the manner of a flower box into the gap 12 encompassing the upper edge area 10 of the housing frame part 3, as can be seen from FIG. 4. During the closing movement of the door or of the pivotable housing body part 8, the lower edge area 11 of the door or of the pivotable housing body part 8 strikes the driving finger 50 and moves it in the further course of the closing movement in the direction of arrow 56. The movement of the driving finger 50 is determined by the Power transmission of the cable 51 to the pulley 52. Corresponding to the movement of the driving finger 50, the deflection roller 52 executes a rotary movement about its eccentrically arranged axis 57. To this end, the cable pull 51 engages the deflection roller 52 with its end facing the deflection roller 52. The piston rod 49 also engages the deflection roller 52 and, when a pulling force is exerted on the pulling rope 51, due to the rotation movement of the deflection roller 52 in the direction of the outlet valve 54 in the piston chamber of the piston pump 47 moved into it. As a result of this piston movement, an overpressure is known to arise in the piston pump, which opens the outlet valve 54 and doses product into the outlet line 55 and through the outlet opening 38 into the tank 4 of the dishwasher. If the door or the pivotable housing body part 8 is moved back into its open position, the deflection roller 57 moves back in the direction of the arrow 58 into its starting position. This can be done by means of a spring element, not shown, or if the deflection roller 52 is mounted eccentrically on the axis 57, with a corresponding mass, solely on account of its own weight. As a result of this rotary movement, the piston rod 49 and thus the piston 48 in the pump chamber of the piston pump 47 are moved back again. Due to the resulting negative pressure, the inlet valve 53 is opened and the pump chamber is refilled with product flowing from the product storage chamber 32.

Alternatively, instead of the holding arms 16, the metering devices according to FIGS. 1 to 5 can also have only adhesive tapes with which they are attached to the dishwasher. There is then no need to carry out the holding arms through the gap 12. The metering device is then particularly easy to install.

Claims

claims

1. dosing device (13; 14) with product storage space (32) and product stored therein as well as product discharge means (29, 30; 47 - 49), which is arranged in its position of use on a commercial dishwasher (1), characterized in that it comprises means ( 17, 18, 25 - 28; 50 - 52), which mechanically absorb the closing movement of a door or a pivotable housing body part (8) of the dishwasher (1) and mechanically transmit it to the product discharge means (29, 30; 47 - 49), that this is moved corresponding to the closing movement and immediately causes the metered delivery of product stored in the product storage space (32) into a tank (4) of the dishwasher (1).

2. Dosiervomchtung according to claim 1, characterized in that the product discharge means (29, 30; 47 - 49) directly receives the closing movement of the door or the pivotable housing body part (8) by mechanical contact or that an actuating means (17; 50) the closing movement mechanically picks up and transfers to the product discharge means (29, 30; 47 - 49).

3. Dosing device according to claim 2, characterized in that the actuating means (17; 50) mechanically absorbs the closing movement and by means of interacting transmission means (18, 25 - 28; 51, 52) mechanically on the product discharge means (29, 30; 47 - 49) transmits.

4. Dosing device according to claim 2 or 3, characterized in that the actuating means (17; 50) is arranged in permanent operative connection with the transmission means (18, 25 - 28; 51, 52) and / or the product discharge means (29, 30; 47 - 49) on the dishwasher (1).

Dosing device according to one of claims 2 to 4, characterized in that the actuating means (17; 50) is arranged in this way on the door, in particular the front door, or the pivotable housing body part (8) or a housing frame part (3) of the dishwasher (1), that it is used to transmit the shooting movement either with an upper edge area (10) of the housing frame part (3) of the dishwasher (1) and / or an actuating element assigned to it, or with a lower edge area (11) of the door or the pivotable housing body part (8) and / or one of these / this associated actuating element cooperates

Dosing device according to claim 5, characterized in that it is fixed in place on the door or the housing body part (8) and in the area of the last quarter of the shooting movement the actuating means (17) on the upper edge area (10) of the housing frame part (3) or the latter assigned actuating element strikes and is moved by the latter in mechanical contact with the peripheral edge region (10) or the actuating element until the shooting movement has ended.

Dosing device according to claim 5, characterized in that it is fixedly attached to the housing frame part (3) of the dishwasher (1) and in the area of the last quarter of the closing movement the actuating means (50) from the lower edge edge area (11) of the door or the surface placed thereon Housing body part (8) or this / this associated actuator is moved until the completion of the closing movement.

8. Dosing device according to one of the preceding claims, characterized in that the actuating means a slide (17) with rack (18), the transmission means a gear arrangement (25 - 28), preferably a gear transmission, and the product discharge means one with the gear arrangement (25 - 28) engaging piston threaded rod (29).

9. Dosing device according to one of the preceding claims, characterized in that the product storage space (32) is a cylinder body, in particular a cartridge with a movable piston head.

10. Metering device according to claim 8 or 9, characterized in that the rack (18) of the slide (17) when the slide (17) comes into contact with the upper (10) or lower (11) edge region and / or the actuating element associated therewith the gear arrangement (25 - 28) is engaged and this is set into rotary motion during the further closing movement and the gear arrangement (25 - 28) in engagement or operative connection with the piston threaded rod (29) puts the piston threaded rod (29) into the product storage space (32) emotional.

11. Dosing device according to claim 10, characterized in that the gear arrangement / piston threaded rod connection has a freewheel (28) acting in the direction counter to the closing movement.

12. Dosing device according to one of claims 8 to 11, characterized in that the operative connection between the gear arrangement (25 - 28) and the piston rod (29) is detachable, in particular by means of a lock nut (39).

13. Dosing device according to one of claims 8 to 12, characterized in that the slide (17) with the rack (18) performs a lifting movement, the lifting path being adjustable.

14 dosing device according to one of claims 8 to 13, characterized in that the slide (17) and the piston threaded rod (29) are arranged at right angles to each other

15 dosing device according to one of claims 8 to 14, characterized in that slide (17), gear arrangement (25 - 28), piston threaded rod (29) and product supply space (32) are arranged on a base plate (15) fastened to the outside of the dishwasher

16. Dosing device according to claim 15, characterized in that the base plate (15) by means of in a between the lower housing part (3) and the door or the pivotable housing body part (8) of the dishwasher (1) engaging gap (12) engaging holding arms (16) is attached to the dishwasher (1).

17. Dosing device according to one of the preceding claims, characterized in that that the product storage space (32) has an exit opening with a subsequent connecting channel (34, 35; 55) with an opening (38) directed into the tank (4) of the dishwasher (1).

18. Dosing device according to claim 17, characterized in that the connecting channel (34, 35; 55) is guided through the gap (12) formed on the dishwasher (1).

19. Dosing device according to one of claims 1 to 7, characterized in that the actuating means a driver finger (50), the transmission means a cable (51) with deflection roller (52) and the product discharge means a piston pump (47) with the deflection roller (52) moved piston (48).

20. Dosing device according to claim 19, characterized in that the piston pump (47) via an inlet valve (53) with the product storage space (32) is in line connection and has an outlet valve (54).

21. Dosing device according to claim 19 or 20, characterized in that the product storage space (32) is designed as an interchangeable container.

22. Dosing device according to one of claims 19 to 21, characterized in that the driver finger (50) when it comes into contact with the upper (10) or lower (11) edge edge region and / or the actuating element associated therewith is moved as a result of the closing movement, the Mitnehmerfϊn- ger (50) transmits this movement as tensile force to the cable (51), this the deflection roller (52) is set in a rotational movement and by means of its rotational movement the piston (48) of the piston pump (47) is moved in the direction of the outlet valve (54).

23. Dosing device according to one of claims 19 to 22, characterized in that the dosing device (14) with in a between the lower housing frame part (3) and the door or the pivotable housing body part (8) engaging holding arms (16) engaging is attached to the outside of the dishwasher (1).

24. Dosing device according to one of claims 19 to 23, characterized in that the piston pump (47) has an outlet line (55) with a mouth (38) directed into the tank (4) of the dishwasher (1).

25. Dosing device according to claim 24, characterized in that the output line (55) through the on the dishwasher (1) formed gap (12) is guided.