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(11) | EP 2 636 639 A1 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | A mixing device for beverages |
| (57) In a device (10) for mixing of beverages comprising at least two containers (30a,30b)
each able to contain a beverage, a delivery duct (32a,32b) for each of said at least
two containers (30a,30b), the device (10) comprises at least one pressing element
(64a,64b) against said delivery ducts (32a,32b) so as to deform the ducts by varying
the inside cross-section and, then, the passage section of the liquid, allowing for
the adjustment or interruption of the flow of the beverage which passes and exits
from each of the delivery ducts (32a,32b).
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[0001] The present invention relates to a mixing device for beverages, comprising more containers in each of which a beverage is contained to obtain, through their mixing, cocktails or more generally mixed drinks.
[0002] It is well known that in order to obtain cocktails, either non-alcoholic or alcoholic drinks, it is necessary to mix properly dosed quantities of substances: for example to obtain a cocktail made of fruit it is necessary to pour in a glass a predetermined amount of alcohol, water (alternatively seltzer or soda) and fruit juice.
[0003] Therefore, at least two beverages must be mixed together but, usually, at least three different types of beverages are mixed.
[0004] Therefore, one must mix with each other at least two of beverages but, more often, at least three different types of beverages.
[0005] This operation is usually made manually, i.e. one takes bottles containing the required beverages and a certain quantity of each beverage is roughly poured in a glass, then the whole amount of liquid is mixed to obtain the desired beverage. This operation is made when a drink is request, so it is necessary to repeat it every time a person requires a new drink.
[0006] It is evident that by operating manually, it is unlikely that the final drink contains the correct dosage required for each component, even if it is prepared by a skilled and prepared person. The obtained result is not always optimum and drinks thus prepared necessarily have slight differences between them. Moreover, if the person in charge to prepare and serve these beverages is not well skilled and/or prepared, or even it is not always be the same, for example like in a bar or at a party where there are several people involved in the service, the drinks differ significantly to each other. Difficulty increases if the amount of cocktail to be prepared is different from time to time, for example because a person could ask more or less quantity depending on his own desires. In this case, it is necessary to vary the dosages of each beverage proportionally, therefore the quantities to be used are not always the same.
[0007] So, it is extremely difficult, if not impossible, to produce always the same drink and the final results will be inevitably different.
[0008] Moreover, the preparation of such mixed drinks or cocktails also requires a certain amount of time, just because all operations are carried out manually, and because you have to pay particular attention to the dosages of each beverage.
[0009] Therefore, mixers provided with containers each containing a different substance capable of mixing together the various substances have been designed.
[0010] However, such mixers are particularly complex and expensive to produce, they require a continuous maintenance and they are subjected to malfunctions and failure. In addition, the operation of maintenance and repair is long and laborious due to their complexity.
[0011] Usually, these mixers require the use of electricity for functioning with a consequent cost and, in case of power failure or unavailability, the device is not able to function.
[0012] The purpose of the invention is therefore to make a mixing device which is simple, inexpensive and easy to use. Moreover, the device must be reliable and minimum maintenance should be required and, in case of intervention, for example for cleaning and/or due to any malfunction, the operation must be carried out by any person in a short time and with a low cost.
[0013] The device should not require the use of electricity for its operation, so as it does not have any cost due to the consumption of energy and, of course, either stops due to the interruption of the power supply and able to operate anywhere.
[0014] Finally, the device should allow to vary the amount of flow of cocktails coming out from the ducts by keeping constant the ratio between the quantities of the individual beverages, so as to obtain always the same cocktails, or to obtain cocktails having different compositions, namely cocktails where the ratio of quantities of the individual beverages is different.
[0016] In this way, by operating the pressing element, the passage cross-section of the liquid is partially or completely blocked and, therefore, it is possible to vary the amount of liquid coming out, or completely stops the discharge.
[0017] Thus, the device is extremely simple and reliable and its maintenance is reduced to a minimum.
[0018] Preferably, the shutting means comprise at least two rotating cams, one for each of said delivery ducts which act directly or indirectly against said delivery ducts, said at least two rotating cams being actuated by said at least one manoeuvring element.
[0019] In this way it is easy to vary the passage cross-section of the liquid squeezing the delivery ducts simply pushing the two rotating cams against the delivery ducts by operating on the manoeuvring element.
[0020] Preferably, said at least two rotating cams have a profile, also different between them, but so that by varying the position of said manoeuvring element the passage cross-section of each delivery duct changes by the same proportion, thus maintaining the ratio between passage cross-sections of the two delivery ducts unchanged and, therefore, also the ratio between the amount of flow which passes through the two delivery ducts, so as to obtain always the same cocktails where the ratio of the quantities of the two beverages remains unchanged even if the quantities of the two beverages are different between each other.
[0021] It follows that the device, besides to be simple, also allows to make mixed drinks always identical because the same proportions between the various ingredients are observed. By operating more or less the manoeuvring elements, it is possible to squeeze in a different way the delivery ducts and thus to vary the intensity of the flow of the substance coming out from each duct, but obtaining in the end always the same drink. For example, if you want to quickly fill a glass, you have to operate on the manoeuvring elements so as to allow the maximum passage of flow permitted by the cams thus reducing the preparation time of the cocktail.
[0022] Preferably, said at least two rotating cams have a profile, also different between them, and such that in different positions of said manoeuvring element the ratio of the passage cross-section between said at least two delivery ducts varies and, therefore, also varies the ratio between the amount of flow which passes in the two delivery ducts, so as to obtain in different positions of said manoeuvring element cocktails having different compositions.
[0023] In this way, thanks to the particular conformation of the rotating cams, in different positions of the manoeuvring element, the cams act and squeeze in a different manner the delivery ducts, thus obtaining different cocktails for each position of the manoeuvring element.
[0024] These and other advantages of the present invention will become evident from the following detailed description given only for illustrative but not limitative purposes with reference to the following drawings wherein:
- figure 1 is a perspective view of a device according to the present invention;
- figure 2 is an exploded perspective view of the device of figure 1;
- figure 3 shows is an enlarged scale details of figure 2;
- figures 4 and 5 are cross sections of a detail of the device of figure 1 represented in two different operating positions;
- figure 6 is a perspective view of a detail of figure 1;
- figure 7 is an enlarged scale of a detail of figure 6.
[0025] In figures 1 and 2 is illustrated a mixing device for beverages generally indicated with 10. The device 10 comprises a support 20 which in turn comprises a base 22 on which a first stem 24 is fixed and above it a second stem 26 is fixed. A support plate 28 is fixed at the free end of the second stem 26 and, above it, three containers 30a,30b,30c are mounted which are filled with beverages of different type depending on the desired mixed beverage. From each container 30a,30b,30c respectively starts a first, a second and a third delivery duct 32a,32b,32c made of deformable and elastic material such as rubber or the like.
[0026] Elastic and deformable material means a material that deforms when it is subjected to a force, and tends to return to its original position when the action of force is finished.
[0027] In the specific case, by applying a pressing force on the delivery ducts 32a,32b,32c, these are deformed or better yet they are compressed so reducing the passage cross-section of the liquid, while removing the pressing force, the ducts tend to return to their original position due to the elasticity of the material and, thus, the passage cross-section returns to the original one or, at least, to a cross-section very near to the initial one.
[0028] An elongated plate 33 is mounted between the first stem 24 and the second stem 26, at the free end 33a of which holes 34a,34b,34c are formed in which the free ends of the delivery ducts 32a,32b,32c are respectively inserted.
[0029] Shutting means 40 are mounted on the elongated plate 33 for adjusting the amount of liquid delivered by each of the three delivery ducts 32a,32b,32c.
[0030] As it can be seen more clearly in figures 2 and 3, the shutting means 40 comprise a hollow cylindrical support 60 fixed to the elongated plate 33. A pin 42 is coaxially mounted inside the cylindrical support 60 and it is fixed by means of a nut 43. A first and a second manoeuvring lever 44a, 44b are rotatably mounted on the pin 42 at both ends of the cylindrical support 60. Moreover, a first, second and third cam 46a,46b,46c having a diamond-shaped profile (visible in figures 4 and 5) are rotatably and eccentrically mounted on the pin 42 inside the cylindrical support 60. The first and second cam 46a,46b are fixed to the first manoeuvring lever 44a through a first rod 48a offset with respect to the pin 42, while the third cam 46c is fixed to the second manoeuvring lever 44b by means of a second rod 48b also offset with respect to the pin 42. So, the first manoeuvring lever 44a rotates the first and second cam 46a, 46b, while the second manoeuvring lever 44b rotates the third cam 46c.
[0031] From figures 4 and 5, it is noted that by rotating the second manoeuvring lever 44b, the third cam 46c rotates and its outer diamond-shaped profile accurately follows the inside circular profile of the cylindrical support 60, namely the profile of the third cam 46c is conjugated with the inside circular profile of the cylindrical support 60. The similar thing happens to the first and second cam 46a,46b.
[0032] It is noted that antifriction spacers 50 are interposed between the cams 46a,46b,46c, and also between the manoeuvring levers 44a,44b and the cams 46a,46c.
[0033] A first, second and third through hole 62a,62b,62c are respectively formed on the cylindrical support 60 at the first, second, third cam 46a,46b,46c.
[0034] A first, second and third pressing element or piston 64a,64b,64c are respectively inserted inside the first, second and third through hole 62a,62b,62c and they are in contact, on one side, respectively with the first, second and third cam 46a,46b,46c and, on the other side, they respectively act on the first, second and third delivery duct 32a,32b,32c.
[0035] The pistons 64a,64b,64c have a cylindrical shape and their ends pressing against the delivery ducts are flat. However, the pistons could have other shapes, as well as their ends could be for example a cusp-shaped or spherical.
[0036] The shutting means 40 also comprise an abutment element 70 (see figures 6 and 7) fixed on the cylindrical support 60 by means of screws 71a,71b. The abutment element 70 has a double comb shape, namely a plate 72 provided with four prongs 74a,b,c,d on one side, and with four additional prongs 76a,b,c,d on the opposite side, so as to form three recesses 78a,b,c on one side and other three recesses 80a,b,c on the opposite side, so that the first delivery duct 32a is inserted inside the recesses 78a,80a, the second delivery duct 32b is inserted inside the recesses 78b,80b and, finally, the third delivery duct 32c is inserted inside the recesses 78c, 80c. Therefore, each delivery duct 32a,32b,32c is interposed between the abutment element 70 and respectively one of the three pistons 64a,64b,64c.
[0038] At the rest position, the two manoeuvring levers 44a,44b are raised, the three cams 46a,46b,46c are arranged as shown in figure 5, namely they are in contact with the cylindrical support 60 at the three through holes 62a,62b,62c, so the three pistons 64a,64b,64c are pushed upwards. Thus, the pistons 64a,64b,64c respectively press against the delivery ducts 32a,32b,32c which are deformed, so that the inside passage cross-section of each delivery duct 32a,32b,32c is completely closed. The three ducts 32a,32b,32c are completely squeezed, thus there is no discharge of liquid.
[0039] By operating the second manoeuvring lever 44b and in particular by rotating it downwards, the third cam 46c rotates so the profile of the cam, at the third through hole 62c, moves away from the inside profile of the cylindrical support 60 and, then, the third piston 64c is lowered since the third delivery duct 32c tends to return to its original position due to the elasticity of the material of the duct, as described above, and also due to the weight of the piston 64c. Thus, the latter pushes less and less against the third delivery duct 32c. In this way, the inside passage cross-section of the ducts is no longer closed, but opens more and more as the second manoeuvring lever 44b is lowered. When the second lever 44b is completely lowered, the third cam 46c no longer pushes, or only partially, against the third piston 64c and then against the third delivery duct 32c, the passage cross-section of the duct has the maximum opening permitted by the third cam 46c and the liquid is free to flow and to exit.
[0040] Similarly, by operating the first manoeuvring lever 44a and, in particular, rotating it downwards, the first and second cam 46a,46b rotate, so the profile of the two cams, at the first and second through hole 62a,62b, move away from the inside profile of the cylindrical support 60 and, then, the first and the second piston 64a,64b are lowered and, as already indicated above, they push less and less against the first and second delivery duct 32a,32b. In this way the inside passage cross-section of the ducts is no longer closed, but it opens more and more as the first manoeuvring lever 44a is lowered. When the first lever 44a is completely lowered, the first and second cam 46a, 46b do not push or they push only partially against the first and second piston 64a,64b and then against the first and second delivery duct 32a,32b, the passage cross-section of the ducts have the maximum opening permitted by the first and second cam 46a, 46b and the liquid is free to flow and come out.
[0041] The shutting means 40 are placed in the lower position with respect to the containers 30a,30b,30c and, in particular, in a position below the bottom of the containers so that the beverages contained therein can flow and come out by gravity as soon as the manoeuvring levers 44a,44b are operated in the open position.
[0042] Each cam 46a,46b,46c is shaped according on the type of mixed drink to be made. In particular, if the dosage for each of the three beverages is the same, the three cams will be made with the same profile. If instead the dosages of the beverages are different, then the profiles of the cams will be different and made according to the required dosages.
[0043] Anyway, by simultaneously lowering the two levers in the same manner, the mixed drink is always the same. By further lowering the two levers, the intensity of the output flow is increased and, therefore, the preparation time of the final drink is reduced but the composition remains always the same.
[0044] If instead you want to vary the composition of the final drink, it is possible to lower one of the two levers in a greater or lesser extent depending on the desired amount of each beverage.
[0045] It can be noted, as already previously described, that the device is extremely simple, inexpensive, does not require energy supply to be fed and is extremely reliable.
[0046] The device can be used by anyone, even by inexperienced people, as it is sufficient to lower the two levers at the same extent to obtain always the same mixed drink.
[0047] The cleaning operation occurs simply and quickly because it is sufficient to remove the three containers 30a,30b,30c and slip off the three delivery ducts 32a,32b,32c, wash them and finally reassemble them or, simply, flow fresh water to rinse out the containers.
[0048] As described above, in order to obtain different mixed drinks, it is sufficient to operate the two manoeuvring levers 44a,44b in a different way, to make the flow of each substance contained in the various containers in different dosages or, if required, to obtain a different drink but operating to the same extent on both the manoeuvring levers, it is sufficient to remove the cams from the pin on which they are mounted and mount cams with a different profile. So, by having different sets of cams, it is possible to obtain different drinks by operating the two manoeuvring levers always in the same way.
[0049] The device may also be composed of only two containers 30a,30b and the first manoeuvring lever 44b operating on the first and second cam 46a,46b.
[0050] In this case, the two cams 46a,46b may have profiles so that:
- 1. varying the position of the manoeuvring element 44a the cross-section of the delivery ducts 32a,32b proportionally varies, so that the ratio of the cross-sections of the two ducts is always the same and, thus, also the intensity of the flow of the two beverages which come out is the same in order to obtain the same cocktail;
- 2. varying the position of the manoeuvring element 44a at predetermined positions, the cross-section of the delivery ducts 32a,32b takes prefixed values, so as to obtain different and specific cocktails for each predetermined position of the manoeuvring element.
[0051] It is clear that any modification which is conceptually or functionally equivalent falls within the scope of the present invention.
[0052] For example, it is possible to have more than three containers from each of which a delivery duct starts with a relative pressing element operated by one or more manoeuvring elements.
[0053] It is also possible that the cams 46a,46b,46c directly act on the respective delivery ducts 32a,32b,32c, therefore there is no need to use the pistons 64a,64b,64c. Moreover, it is possible to directly act on the pistons by means of push-buttons in place of the cams and the manoeuvring levers.
[0054] It is also possible to have a different number of containers, not only two o three, but also four or more containers each provided with a respective delivery duct.
[0055] The device may be provided with means for cooling and/or heating means in order to obtain a mixed cold and/or hot drink.
[0056] It is also possible to add an additional container, in contact with the containers 30a,30b,30c, inside which ice is put, so as to cool the containers and then the beverages contained therein and, thereby, obtain a mixed cool or cold drink.
[0057] The pistons 64a, 64b, 64c may also be oriented downwards instead of upwards, or rather the pistons may be arranged below the cams 46a,46b,46c. In this case, starting from the condition in which the pistons are lowered and compress the delivery ducts, due to the rotation of the cams, the pistons are raised only because of the elastic return of the material of the ducts, as above explained.
1. Mixing device (10) for beverages to made alcoholic or non-alcoholic cocktails comprising
at least a first and a second container (30a,30b) each able to contain a beverage,
at least a first and a second delivery duct (32a,32b) for each of said at least two
containers (30a,30b), said delivery ducts (32a,32b) are made of elastic and deformable
material for at least a portion thereof, said device (10) comprising shutting means
(40) including at least one pressing element (64a,64b) against said portion of elastic
and deformable material of each delivery duct (32a,32b) so as to deform said portions
of duct to allow or not the passage or not of the beverage in each delivery duct (32a,32b),
said device comprising at least one manoeuvring element (44a,44b) which operates said
at least one pressing element (64a,64b) and movable between a first initial rest position
where said pressing element (64a, 64b) acts on said delivery ducts (32a,32b) so as
to close the cross-section of said delivery ducts (32a,32b) preventing the passage
of the beverages and a second operative end position where said pressing element (64a,64b)
does not act against said delivery ducts (32a,32b) so as to allow the free passage
of the beverages, characterized in that said shutting means (40) comprise at least two pressing elements (64a,64b), a first
and a second pressing element (64a,64b) which press against respectively said first
and second delivery duct (32a,32b), said at least two pressing elements (64a,64b)
being distinct and separated to each other in order to independently act on the respective
delivery ducts (32a,32b), said at least one manoeuvring element (44a) simultaneously
operates said first and second pressing element (64a,64b) which are shaped so that
it is possible, by operating on said at least one manoeuvring element (44a), vary
continuously and in equal proportion the area of the passage cross-section of each
delivery duct (32a,32b), even if the passage area of the two delivery ducts (32a,32b)
is different, so as to maintain constant the ratio between the area of the passage
cross-section of said first delivery duct (32a,32b) and the area of the passage cross-section
of said second delivery duct (32a,32b), so that for any intermediate position between
said first initial position and said second final position of said manoeuvring element
(44a) a cocktail, with always the same composition, is obtained in which the ratio
between the quantities of the two beverages is always the same, even if the quantities
of the two beverages are different or it is possible, by operating on said at least
one manoeuvring element (44a), to vary the ratio between the area of the passage cross-section
of said first delivery duct (32a,32b) and the area of the passage cross-section of
said second delivery duct (32a,32b), so that for different positions of said manoeuvring
element (44a) a cocktail having different compositions is obtained.
2. Device according to claim 1, characterized in that said shutting means (40) comprise at least two rotating cams (46a,46b) one for each
of said delivery ducts (32a,32b) which act directly or indirectly against said delivery
ducts (32a,32b), said at least two rotating cams (46a,46b) being actuated by said
at least one manoeuvring element (44a).
3. Device according to claim 2, characterized in that said at least two rotating cams (46a, 46b) have a profile, also different between
them, but such that by varying the position of said manoeuvring element (44a) the
passage cross-section of each delivery duct (32a,32b) vary of the same proportion,
thus maintaining unchanged the ratio between the passage cross-sections of the two
delivery ducts (32a,32b) and, therefore, the ratio between the amount of flow that
passes in the two delivery ducts (32a, 32b), so as to obtain always the same cocktail
in which the ratio of the quantities of the two beverages remains unchanged, even
if the quantities of the two beverages are different from each other.
4. Device according to claim 2, characterized in that said at least two rotating cams (46a,46b) have a profile, also different between
them, and such that in different positions of said manoeuvring element (44a) the ratio
of the passage cross-section between said at least two delivery ducts (32a,32b) varies
and, therefore, also varies the ratio between the amount of flow which passes in the
two delivery ducts (32a,32b), so as to obtain cocktails with different compositions
in different positions of said manoeuvring element (44a).
5. Device according to claim 2, 3 or 4, characterized in that each of said at least two pressing elements (64a,64b) are made of a pin or piston
(64a,64b), each pin or piston (64a,64b) being operated by each of said rotating cams
(46a,46b), so that by operating said manoeuvring element (44a), each cam (46a,46b)
rotates and said pins or pistons (64a, 64b) press against said delivery duct (32a,32b).
6. Device according to claim 2, 3 or 4, characterized in that said at least two rotating cams (46a,46b) directly press against said at least two
delivery ducts (32a,32b) to form said at least two pressing elements (64a,64b).
7. A device according to any of the previous claims, characterized in that said shutting means (40) comprise at least one abutment element (70), each delivery
duct (32a,32b) being inserted between said at least one abutment element (70) and
the respective pressing element (64a,64b), so that by moving each pressing element
(64a,64b) against said delivery duct (32a,32b), each delivery duct (32a,32b) is compressed
between said at least one abutment element (70) and said pressing element (64a, 64b).
8. A device according to any of the previous claims, characterized in that said containers (30a,30b,30c) are at least three from each of which respectively
starts a first, second and third delivery duct (32a,32b,32c) each provided respectively
with a first, second and third pressing element (64a,64b,64c), said at least one manoeuvring
elements (44a,44b) are two, a first manoeuvring element (44a) which operates said
first and second pressing element (64a,64b) which respectively act on said first and
second delivery duct (32a,32b) and a second manoeuvring element (44b) which operates
said third pressing element (64c) which acts on said third delivery duct (32c), said
manoeuvring elements being controlled simultaneously or independently so as to obtain
respectively the same cocktail in which the proportions between the various beverages
are always the same, or different cocktails where the proportions between the various
beverages can be varied.