DE7001460U - EQUIPMENT FOR THE PREPARATION OF BEVERAGES. - Google Patents

Description

Dr.-lng. Wooden houses DipU -.?t. Γ. · -! ibach

Patent Attorneys OFFENBACH Λ vi MAIN Herrnstr. 37 - Tel. 88 56 4?

ROlVENTA - WERKE limited liability company, 6050 Offenbach am Main, Waldstrasse

Device for preparing beverages _β

The invention relates to a device for preparing infusions using ingredients, e.g. Instant coffee, both for hot and cold drinks «

Known devices of this type have a container for the ingredients with a conveyor which convey the ingredients into a mixing chamber *, in which they are mixed with hot water from hot water. more ready to be mixed,

The conveyors of such known devices w4r— the electric motor driven and there are electrical or electronic time or quantity control devices required for the dosed delivery of the ingredients »

Devices of the known type are inevitably very expensive due to the complex arrangements described and prone to failure

The invention has for its object to avoid the above disadvantages and to show a simple device which doing away with complicated control devices and expensive drives exactly according to the will of the user dosing unit creates »

According to the invention, to solve this problem, it is provided that the conveying device can be actuated by hand by an operating element arranged outside the housing, which is arranged on a shaft which is directly or indirectly in drive connection with the conveying device for the bulk material via a coupling lock, wherein at the same time the hand control element controls the amount of water to be dispensed.

Another feature of the invention is that the hot water heater is designed in the manner of a flow heater and is connected to a dispensing valve which can be actuated by the manual control element _{or the like}

Another very important feature of the invention is that the hot water heater is a very small volume instantaneous water heater that is always ready to deliver hot fresh water immediately without waiting.

Another feature of the invention is one consisting of a screw conveyor and a mixing wheel meshing with it existing conveyor system with constant waste volume, which can be adjusted depending on the type of ingredients »special

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It is advantageous to connect the manual control element to the coupling and the screw conveyor via a cable pull.

Further details of the invention can be found in the description, the drawings and the claims »

The drawings show, for example, and purely schematically an embodiment of the invention ₀

FIG. 1 shows the G-drink preparation device according to the invention in longitudinal section »

FIG. 2 shows a top view of the beverage preparation device according to the invention, with the lids removed.

FIG. 3 shows a rear view of the beverage preparation device according to the invention, with the back wall partially removed »

FIG. 4 shows the coupling according to the invention in longitudinal section and

FIG. 5 shows an exploded view of the coupling according to the invention ο

* As can be seen from FIG. 1, there is the inventive Beverage preparation device comprising a housing 1 in the form of a sheet metal jacket with front and top covers, The top cover is easily removable because it is simply placed underneath the top cover 2 is the also from above accessible container 3 for the ingredients, which in turn by another easily removable cover 4 is tightly closed »The

A tight seal is necessary here because the powder that has been dried is highly hygroscopic. Inside the container 3 a screw conveyor is arranged, which consists of a screw 5 and a gear 6 »

The mixing wheel 6 meshes with the screw conveyor 5 and is therefore of such a larger diameter because it thereby has a substantial Part of the contents of the container "5" is mixed with each movement of the screw conveyor 5 and when it is removed of the contents of the container, the bulk material piles up before it is dispensed in order to ensure even dosing.

The container 3 is made in one piece with the housing of the screw conveyor 5 from plastic · Below the container 3 and the screw conveyor 5, a valve 7 and a water heater 8 are also arranged within the housing 1, which are connected to a fresh water line, not shown.

The valve 7 is designed as a solenoid valve and is controlled by a switch 16 visible in FIGS. 1 and 3, which in turn can be switched on by a manual control element · The valve 7 can also be operated by the Vifelle 18 actuatable mechanical valve can be executed »

.Vie can also be seen from Figure 1, the line opens 9 coming from the water heater 8 into a mixing chamber 10, into which the outlet of the screw conveyor 5 also opened. This outlet bears the reference number 5a. The mixing chamber

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opens into an outlet 23, in which the coffee beverage produced in the mixing chamber is fed to a collecting vessel, for example a cup or a jug. Above the mixing chamber 10, a channel 11 is provided in which a lamp 12 is mounted so that a chimney effect is created in the channel 11, the vapors from the mixing chamber 10 and escape through slots 13 in the cover 2 of the housing to the rear lets “The lamp 12 and the channel 11 are easily exchangeable. The lamp 12 is located in a socket _14e. The channel 11 is placed on an extension 10a of the mixing chamber 10 or hung on the cladding 1. The outlet 5a can be formed by an opening or, advantageously, by a damper that also absorbs the rising steam rejects and ensured the even dosage

The o «a, manual operation takes place via an outside of the Housing 1 for the user freely accessible hand lever or handle 17. This is attached to a shaft 18 (Figure 2) igXo At the end of the Y / el & e 18 facing away from the hand lever, a further lever 19 is articulated, which acts on a cable pull 20, which in turn is connected to a coupling 21 attacks "

and the coupling 21 is from your handle 17 / over the shaft 18, the lever 19 and the rope 20, which is diverted via a roller 26, as a result of their design as a locking mechanism

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- 6 driven only in the direction eirer _o

The lever 19 is secured by a damper 27, preferably made of rubber, which is inserted into the stop 28 is intercepted in its upper rest position.

As can be seen from FIGS. 4 and 5, the coupling consists of a bearing block 29 and the counter bearing 30, which hold the shaft 31 of the coupling between them, as well as the driver spring 40, ratchet wheel 35 and pawl carrier 37 with pulley 26 has a slot 32 at the end of the larger diameter, in which a web 33 of the worm 5 engages. A safety guard 34 keeps the parts in position _0, the pawl carrier 37 is rotatably supported on the shaft 31, the ratchet wheel 35 sits on the square $ 3 a or a similar device, such as wedge etc _0, to produce the form fit with the shaft. The pawl 36 is pivotably attached to the pawl carrier 37 with the bolt 43 in such a way that the driver spring 40 engages in the protruding notch and can cause _{the pawl position necessary for actuation e} A stop 37a limits the angular path of the pawl,

In this way, the pawl carrier can change its position relative to the shaft in one direction of rotation, while in the other direction the shaft is taken along and

thus the pulley and the screw conveyor.

Within the spring guide wheel 38, preferably made of plastic, a spiral spring 41 is arranged, which the return the clutch and the Betatxgungseleraente served in their initial position. The spring guide wheel 38 is from a cover 42 at least partially enveloped.

Function description:

The beverage preparation device according to the invention works as follows:

When the handle 17 is moved downwards, the lever 19 (FIG. 3) is taken along and also moved downwards _β

Due to the stop-related angle of rotation of the screw 5, a constant amount of ingredients is always through the The outlet 5a at the front end of the screw conveyor is pushed out and falls into the mixing chamber 10 “The pegs 38a of the wheel 38 engage in grooves 38 b of the iiolle 37.

Simultaneously with the dosage of the ingredients, the handle 17 is used to dispense hot water into the mixing chamber 10 controlled This is done in that the switch 16 is actuated by the lever 19, which the circuit of the solenoid valve 7 complied with and thus fresh water in

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allows the continuous flow heater 8 to flow in ₀ The continuous flow heater 8 is connected to a pressure switch, which switches on the heating of the continuous flow heater when the water pressure is present and thus simultaneously acts as a pressure monitor and protection against dry running _o

Thanks to the construction according to the invention of the water heater with heating elements (coils) lying in the water reached a particularly short heat-up time

The water heater 8 consists of an insulating material, preferably a cylindrical plastic or ceramic block, which meets all requirements. The water leaves the water heater 8 with a certain Temperature, which can be determined by the design of the heating elements and the flow rate per unit of time « The hot water is in the mixing chamber 10 with the ingredients mixed and the finished drink flows through the outlet 23 into the collecting vessel (not shown)

The invention is not limited to the illustrated embodiment, but rather leave it within the scope of the invention many variations meet.

In particular, the water heater 8, the coupling 21 and the valve 7 according to the invention can also be carried out in a different manner, although the illustrated embodiment example is particularly advantageous and causes low manufacturing costs »

The main advantages of the invention are that all required with a single handle Functions can be initiated and carried out «In particular, with the beverage preparation device according to the invention At the same time, however, an even dosage of the amount of ingredients dispensed is possible According to the invention, the amount of water added to this in each case the same amount of ingredients can be used as desired can be varied so that the concentration of the finished drink can be varied over a wide range.

Normally a single actuation of the handle 17 is sufficient for a single cup and / or a stronger drink, if you move this handle down several times, you get another one Ingredients can be added; a dilution is possible by holding down the handle 17 for a longer period of time

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Claims (4)

Expectations : le device for preparing beverages using powdered Ingredients or the like, containing a container therefor and a conveying device for conveying the powder, and a liquid feed device, characterized in that the conveyor device for the powder can be operated by hand from an operating element arranged outside the housing and at the same time the adjustable nienge of the ingredients and the fre? selectable Amount of water can be dosed and dispensed » 2. Machine according to claim 1, characterized in that the manual control element has a shaft, a cable and a Kupjülung with a screw conveyor in operation connection is » 3.! Machine according to claim 1 and 2, characterized in that that the hot water heater is designed in the manner of a flow heater and is connected to a valve stands which is controllable by the hand control element " 4. Machine according to claim 1 to 3, characterized in that the conveyor device consists of a screw conveyor and a mixing wheel meshing with it with a relatively large diameter » Ui460 5β machine according to claim 1 bjs 4, characterized in that the coupling with the pulley is a structural
Unity forms » 6ο machine according to claim 1 to 5, characterized in that that the clutch can only be driven in one direction of rotation like a locking mechanism »