DE1449260B1 - Mixing device for self-sellers of beverages - Google Patents

Description

1 2

The invention relates to a mixing device embodying parts of each other.

for self-sellers of beverages to mix, and

liquid and dry ingredients. F i g. 3 is a top view of the FIG. 2 shown

In previous versions of beverages self-provided mixing device, which the relationship of the loading

sellers, for example in the USA.

publications 2,843,293 and 2,997,026.

are attempts to dissipate the by the introductory In F i g. 1 is indicated generally by the numeral 10

tion of hot liquid into the mixing chamber causes self-sellers to use the drinks

been made with gentle steam. This steam denotes a suitable type for the present invention,

namely causes the stored io to stick. A housing cell encloses and carries a fluid

dry ingredients they make unusable fluid container 15 for storing a source

can. hot water or another heated mixing

In the case of the US Pat. No. 2,843,293 fluid. On one side of the container 15 are

The facility described is the dry to- several storage means for dry ingredients to the

did unload into a first funnel and get 15 to be prepared drink attached, generally with

from the first to the second funnel. The fluid reference numerals 16 to 19 designated containers

Liquid is introduced into the second funnel, and point and around a central opening 20

A suction chamber is arranged around this second funnel (Fig. 2). Just below the

the mixing device 25 is arranged to discharge the opening 20 formed in the second funnel,

the steam provided. 20 which will now be described in more detail

In the US Pat. No. 2,977,026 requested.

is the storage part for you is with the liquid container 15 through a the dry ingredients are pressurized, so connected to a hot liquid conduit 26, that vapors do not even enter this part, whereby the liquid flowing through this line can, as flow is regulated by a valve 26a, which is

The previous facilities, however, have the homely electrical through (not shown)

Disadvantage that, although remote drive means are operated in some kind of them. The mixing device

for steam extraction is provided, their overall contour 25 is also attached to a flexible line 27.

but such a traction is that the thorough one that leads to one on the outside of the

Mixing and complete elimination of the fan 28 attached to the rear wall 29 of the housing leads. Under-

mixed is questioned. half of the mixing device 25 is a schematic

It is therefore the task of the present Er- sales point 30 reproduced, which is to be filled

finding, a mixing device with a perfect drinking cup 31 carries. The ones at the point of sale

Provide vapor evacuation without thereby the standing cups are filled with the liquid, the

Mixing and removal of the ingredients according to 35 from the mixing device 25 via the flexible

to hinder every mixing process. flow hose 32 drains.

Based on a mixing device for

drinks self-sellers for mixing liquid environment in which the mixing device according to the invention

and dry ingredients with an upper, at its application, should now refer to the in FIG. 2

The upper end of the open container, the details of the same shown in more detail for receiving 4 ° and 3

the liquid and dry, can be added to the drink.

Coming ingredients are intended to be mixed as can be seen from these figures chamber under this upper container, with both each of the dry ingredients to the one to be prepared The upper container and the mixing chamber each have a container 16 to 19 storing the beverage Have outlet openings, of which those of the upper loading 45 consist of a container part which is cylindrical in shape throughout holder is in communication with the mixing chamber, built into a base 40 supporting it one with the mixing chamber is in communication, which is attached to a base and the steam suction chamber and a device for distributing the dry ingredient with this for steam Suction chamber connected closes that of the mixing device 25 measured suction device that can supply one of the mixing device 50 quantities of dry ingredients. As the has a remote outlet opening, with the device serving to dispense the dry ingredients Let opening of the upper container an air inlet for usually a screw conveyor 41, which can be rotated in Forming the suction device, the invention has an open channel 42 built into it, which is transversely rounded The object is achieved in that the direction is towards a funnel-shaped container bottom 43 the steam suction chamber is shaped into the mixing chamber for the supporting lower part. The snail sets and both the upper and lower 41 is from time to time by an electric motor Part of the essentially closed lower 44 driven, which is driven according to a (not Form container. reproduced) actuator, which in

The invention is described below on the basis of a customary manner at the throw-in of a by the buyer

Embodiment explained in more detail. Of the drawing 60 selected coin appeals and thereby the

tion represents the initiation of the sales process, flowed through by electricity

F i g. 1 is a perspective view of a device.

self-seller's potions, It is characteristic that each of the containers 16 to

Fi g. Figure 2 is an enlarged 19 elevational view with one different from the others

Flat front view of the mixing device, of which the dry ingredient has been filled. For example, in

Parts in cut and other parts again completely a self-seller who has both hot coffee and

are shown in elevation and which the constructive can also dispense hot chocolate, container 16

tive arrangement and the relationship of the mixed finely ground coffee, container 17 sugar, container

3 4

Terl8 milk powder and container 19 containing a mixture catching the side wall 51 extending radially outward, finely ground chocolate. The fastening lugs 62,63 are provided with two opposing keyways 64 of the chosen combination desired by the buyer Padding device 66 and periods of time are operated to rotate, so that a substantially rigid water inlet pipe 67 they of the mixer 25 metered amounts is made in one piece. The water inlet pipe 67 for the dry or powdered ingredients directly to- preferably consists of a molding compound that can be fed. For example, if the buyer wishes the padding device 66 to be arranged opposite, hot coffee with cream and sugar, then in FIG associated allocation device wall of the upper container 50 is passed. Which are actuated. If the buyer had hot chocolate drawing of the parts to one another is best to have through, only that of the container 19 would be illustrated. In ahn- ₁₅ the water inlet pipe 67 to the mentioned hot Licher way would if black coffee overall water-carrying line is connected 26th This is desirable, only the dispenser for the container attachment type provides a convenient means of actuating the Lei-16. 26 easily removed from the mixing unit

In order to safely feed the dry ingredients direction 25 to separate while maintaining a too

to ensure the mixing device 25, each ao of the inner wall of the container 50 is essentially

Conveyor screw designed so that it is in a tangential entry of the water in this container

Base 40 provided cylindrical outlet part 46 ter to ensure, as in F i g. 2 and 3 through the

reaches in with the open end, so that it is indicated within arrows W , to repair the apparatus.

maintain the circumference provided for opening 20 or eliminate a fault that has occurred,

ends (see Fig. 3). Thus, with each rotation 25 apart from the annular flange 60 and the top

The side wall 51 is a conveyor screw for dry ingredients from the upper lip 61 described

open end of the associated outlet part 46 of the upper container 50 is also shaped so that it

pours and falls through opening 20 including a lower annular flange 70,

directly into the mixing device 25. from the transition point of the cylindrical side

As shown in FIG. 2, the mixing wall 51 faces the frustoconical bottom wall 52 direction 25 is designed as a unit, above as an extension of the side wall 51 pointing downwards, open top container 50 of generally This is best shown in FIG. 2 recognizable. The lower funnel-shaped shape, which is through a zylin- flange 70 near its lower edge Drische side wall 51 is formed, which in a with a radially inwardly directed edge bead 71 integrally formed with it frustoconical 35 provided, which by reaching under a corresponding bottom wall 52 merges with a centrally positioned annular retaining bead 72 that surrounds the outside of the Genes outlet opening 53 is provided, which is the upper end of a lower container 75 for the mixing through a depending cylindrical neck 54 is formed around a linkage (see Fig. 3). Can manufacture a number on the perimeter of the parts.

distributed, rib-like projections 55 jump 40. The lower container 75 is also essentially from the inner circumference of the outlet opening 53 and from the funnel-shaped with an upper cylindrical wall built on the inner surface of the frustoconical bottom 76, on the upper edge of which is the retaining wall 52 inward forward. These projections 55 represent bead 72 and the side a larger one the liquid flow regulating devices, the opening with an outwardly extending rohrfördie liquid and powdered ingredients from the inside 45 migen approach 17 has, as in F i g. 2 shown, of the container 50 down into the centrally arranged The tubular extension 77 tapers slightly Introduce outlet opening 53. These projections 55 to its outer end, so that the line 27 also dampen the free flow of ingredients and can be pushed over and closes beforehand this, for a long time inside, preferably one running around its outside of the container 50 swirl around, as in the so-annular bead 78, which is in the inner wall of the standing should be discussed in more detail. Line 27 engages and this on the tubular

The container 50, in particular the cylindrical extension 77, is held tightly. To achieve this

Side wall 51 of the same, has close to its purpose, while the tubular extension

upper end an annular, radially outwardly preferably made of a rigid, almost non-deformable

protruding flange 60, so that it consists of its uppermost 55 material, the line 27 from a downstream

End part a vertically towering, annular, ductile plastic.

Lip 61 forms. The lip 61 can be axially aligned. The cylindrical side wall 76 of the lower container

tightly into the opening 20 in which the container wearer 75 is at its lower end with a conical

the part can be inserted until the flange 60 is made in one piece with the frustum-shaped wall 80

bumps. This arrangement makes it possible to insert the mixing inlet 5o into a funnel shaped like a single piece.

To attach direction in a convenient manner, shaped mixing chamber 81 passes. The Mischkam-

in particular the container 50 in the operating position mer 81 consists of an upper cylindrical wall

align directly with opening 20 and below 82, a lower frusto-conical wall 83 and

this one and below the one above it hanging down in the middle of the latter,

To attach outlet parts 46 for dry ingredients. 65 tubular extension 84 which has an outlet opening 85

The side wall 51 is also on one side with two forms that correspond to the interior of the mixing chamber in

on the circumference distributed fastening lugs 62, 63 is open connection. The tubular extension 84

provided (see Fig. 3), each of which is designed from the outside so that it has one end of the drainage

ches 32 receives, whereby the liquid mixture produced in the mixing space 86 of the mixing chamber 81 is drained directly into the hose 32 leading to the point of sale 30.

As can be seen from FIG. 2 results are the upper container 50 and the lower container 75 are arranged coaxially with one another so that the axes of the outlet openings 53 and 85 of these containers fall into the same line. Therefore enclose the wall 80 of the lower container 75 and the bottom wall 52 of the upper container 50 are substantially annular Chamber 90 surrounding the depending neck 54 of the upper container. The chamber 90 protrudes the tubular extension 77 with the fan 28 in direct connection. The chamber 90 thus serves as a effective vapor extraction chamber in which the vapor and Can collect haze, as will be explained in more detail below.

The vapor evacuation chamber 90 is further from the through the outlet opening 53 of the upper container trickling down liquid and dry ingredients by a in F i g. 2 generally with the reference number 91 designated flow control member separately. The flow control element belonging to the outlet organs As can be seen from this figure, represents a generally cylindrical tube with a cylindrical upper wall 92 which is shaped to fit on the exterior of the depending cylindrical Neck 54 of the upper container can sit all around. This cylindrical wall 92 is also in one piece with several equally spaced and suspended devices regulating the flow of liquid 93, hanging finger-shaped from it and into the upper end of the through the Mixing chamber 81 reach into certain mixing space 86. The devices 93 are used in operation to divert ingredients flowing out of the upper container directly into the mixing space 86, whereby they mainly at the same time prevent lateral movements of the same into the steam extraction chamber 90.

The mixing device 25 described above in terms of its structural characteristics has the following Mode of action. When a sales process is initiated, one or more of the finely ground ingredients stored in containers 16 to 19 in measured quantities directly in introduced the upper, open-topped container 50 of the mixing device. The one regulating the flow of water Valve device 26 a is also designed so that it is in operation shortly before it runs out finely ground ingredients metered amounts of heated water flow into the interior of the container 50 leaves. When the water enters the container 50, it swirls along the inner side walls of the same tangent to these and wets them so that the finely ground ingredients are generally direct get into a moving flow of water and thus no getting stuck or sticking to the Side walls of the container 50 is possible. Since it is desirable according to the present invention to Avoid leaving the water and dry ingredients in the upper container for even a little longer remain, the diameter of the outlet port 53 of the upper container 50 becomes large on purpose held. In order for the ingredients to reach the outlet opening 53 more quickly, there are rib-like projections 55 provided that the normally existing tendency of the liquid to the funnel-shaped inner walls of the container 50 around and over them, decrease. The projections 55 leave while the ingredients flow out faster through the outlet opening 53, and the flow control member 91 directs the same into the mixing space 86 of the mixing chamber 81.

With reference to the processes described, it should also be noted that the compressed air suction device which is connected to the steam suction chamber 90 and comprises the fan 28 and the line 27 can be operated continuously or intermittently. In any case, however, the fan 28 must be put into operation either just before the start of the sales process or at the same time, more precisely, before the hot liquid and the dry ingredients are allowed to flow out into the upper container 50. The fan 28 will thus generate suction inside the lower container 75, whereby air will be drawn down through the outlet opening 53 of the upper container, as indicated by the arrows A in FIG. 2 is indicated. There will also be a slight upward draft of air through the outlet opening 85 and the drainage hose 32, but due to the pronounced difference in diameter of the outlet openings 53 and 85 of the upper and lower containers (the diameters of which are approximately 2: 1 to each other), the predominant one Part of the air flowing into the fan 28 through the further upper outlet opening 53. This downward air flow supports the vertical forces created by weight in their rapid pulling out of the liquid and finely ground ingredients from the upper container 50 and emptying them into the lower container 75. As a result of this rapid emptying of the upper container, the hot liquid is as long as it is still in this there is very little, if at all, vapor and vapor, so that the air above the mixing device is largely kept free from the destructive effects of rising vapor and vapor particles. Likewise, all dust and fine particles of dry ingredients that normally arise when they are placed in an open container, such as a bowl of tea, are removed. B. the upper container 50, are largely prevented from escaping into the air surrounding the container 50 or the air above it, since they are also sucked down through the outlet opening 53 with the moving air.

It should be noted that partial mixing takes place already in the upper container The liquid and the finely ground ingredients occur together, even though the ingredients are in this container only come into contact with each other for a short period of time. However, such prior mixing takes time not long enough to bring about a desired potable solution that can be sold.

However, thorough mixing of the liquid and dry ingredients will work with success Mixing space 86 of the lower container occur in which these substances for a long time in intimate Touch each other. While namely the ingredients from the upper container flow out quickly, their leakage from the mixing chamber of the lower container is intentionally stopped a much lower speed value

keep. This is due to the large reduction in the diameter of the outlet opening 85 compared to the The diameter of the outlet opening 53 is reached. As already said above, it has turned out that to achieve a satisfactory job selling hot coffees and similar liquids the diameter ratio between the outlet ports 53 and 85 is of the order of magnitude Must be 2: 1.

When the ingredients enter the mixing space 86 of the lower container, the outlet port 85 becomes the same are quickly closed by the liquid, whereby the upward air flow, tending to flow through the outlet opening 85 is effectively blocked. The upper outlet port 53 Air flow flowing through it is created during the mixing process when the ingredients are in the funnel-shaped Swirl around the inside of the mixing space 86, which means that the finely ground ingredients are thoroughly mixed with it mixed with the hot liquid and dissolved in it, intensified somewhat.

During this mixing process, the hot liquid tends to develop vapor and vapor particles, which rise from the mixing chamber into the annular steam suction chamber 90. Which is in this Vapor and vapor particles trapping the chamber are quickly removed from it by the suction of the fan 28 removed, which, as already noted, discharges them into the ambient air on the outside of the housing. This ensures that the air in the housing is essentially made up of moist vapors and the like is kept free.

Claims (4)

Patent claims: 1. Mixing device for self-sellers of beverages for mixing liquid and dry 35 ingredients, with an upper, open at its upper end container, which is provided for receiving the liquid and dry ingredients to be added to the drink, a mixing chamber below this upper container, both the upper container and the mixing chamber each have an outlet opening , of which that of the upper container is in communication with the mixing chamber, a steam suction chamber communicating with the mixing chamber and a suction device which is connected to this steam suction chamber and has an outlet opening that is remote from the mixing device, the outlet opening of the upper container having an air inlet for the suction device, characterized in that the steam suction chamber (90) continues into the mixing chamber (81) and both form the upper and lower part of the substantially closed lower container (75). 2. Mixing device according to claim 1, characterized in that the outlet opening (53) of the Upper container (50) is about twice as large as the outlet opening (85) of the mixing chamber (81). 3. Mixing device according to claim 1 or 2, characterized in that the upper container (50) is provided with the liquid flow regulating devices (55, 93) in order to control the ingredients together with the liquid for the beverage to be produced directly into the mixing chamber (81) to be able to flow. 4. Mixing device according to claim 1, 2 or 3, characterized in that the upper container (50) and the lower container (75), the steam suction chamber (90) and the mixing chamber (81) and their outlet openings (53, 85) around a common axis are arranged around. 1 sheet of drawings cc- · 009 544/11