JP7257666B2 - Dispensing nozzle for post-mix carbonated beverage server - Google Patents

Description

This invention suppresses excessive foaming when pouring carbonated beverages into a container in a post-mix type carbonated beverage server that mixes carbonated water with undiluted beverages such as whiskey, shochu, syrup, etc. The present invention relates to a pouring nozzle capable of providing carbonated beverages with stronger carbonation.

As a pouring mechanism for a post-mix type carbonated drink server, the one shown in Non-Patent Document 1 is known. 11, when the control lever 21 is operated, the undiluted solution lever 22 and the carbonated water lever 23 are simultaneously operated by the principle of leverage, thereby opening both the on-off valves 24 and 25. As shown in FIG. Reference numeral 26 denotes a return spring for returning the operation lever 1. When the operation lever 21 is operated against its urging force, the on-off valves 24 and 25 are pushed open through the undiluted solution lever 22 and the carbonated water lever 23, The undiluted solution and the carbonated water are respectively introduced from the valve block 27 on the upstream side through the orifices 28 and 29 into the outlet portion 30 on the downstream side. In this pouring section 30, the undiluted solution is jetted out horizontally from a supply hole 32 provided in a portion of the tip side cylinder of the undiluted solution nozzle 31, while the carbonated water is ejected from the carbonated water flow path 33 via the canopy 344. It showers down and each is introduced into the mixing cap 35 at the same time.

"Manual Mixing Valve", [online], Hayakawa Sanki Co., Ltd., [searched on January 31, 2019], Internet <URL: http://www.hayakawa-sanki.co.jp/products/?id= 1338290677-758575>

In the pouring mechanism shown in FIG. 11, the carbonated water and the concentrate are simultaneously introduced into the mixing cap 35, and the carbonated water and the concentrate are mixed within the same cap 15. As shown in FIG. That is, the mixed carbonated beverage is poured out from the mixing cap 35 .

However, in the case of the mixing method in which the undiluted solution is jetted against the carbonated water that flows like a shower inside the mixing cap 35, the carbon dioxide gas tends to escape during mixing, and the carbonated beverage tends to become slightly carbonated. Therefore, there is a problem that it is not suitable for consumers who prefer strong carbonic acid.

On the other hand, it is said that it is preferable to add a certain amount of foam in beer, etc., but foam is not desirable in general soda wari, such as highballs and shochu highballs, which are whiskey and shochu mixed with carbonated water. . However, it is empirically known that when such soda cracker is poured into a container containing ice through the mixing cap 35 described above, unwanted bubbling called homing or foaming occurs. The amount of foaming differs depending on the type of carbonated drink, but a relatively large amount of foaming occurs with a highball, and experiments by the applicant have confirmed that there are brands of whiskey that produce particularly excessive foaming. .

Thus, when excessive foaming occurs during pouring into a container, it is also difficult to provide a strongly carbonated carbonated beverage. Moreover, in a normal pouring method, the container is quickly filled with foam, so that a sufficient amount of carbonated beverage cannot be poured into the container in one pour. For this reason, restaurants waited for the foam to disappear, then added the carbonated drink in several batches, or tilted the container and poured quietly to avoid the ice. It takes time and effort to provide carbonated beverages, and there was a problem that sales efficiency was lower than that of beer.

The present invention has been made to solve the above-mentioned problems, and its object is to suppress excessive foaming when pouring into a container in a post-mix type carbonated drink server, and to efficiently and strongly Disclosed is a dispensing nozzle capable of providing carbonated carbonated beverages.

In order to achieve the above-mentioned object, in the present invention, a carbonated water flow lower part through which carbonated water flows down is provided on the downstream side of each on-off valve of the undiluted carbonated beverage and the carbonated water, and a concentrate nozzle is coaxially arranged inside the carbonated water flow lower part. In a post-mix type carbonated drink server provided in a shape, a hollow outer cylinder connected to the bottom of the carbonated water stream so that carbonated water can be introduced, and a bottomed inner cylinder connected to the undiluted solution nozzle inside so that the undiluted solution can be introduced. A cylinder is coaxially provided, and an annular space formed by the outer circumference of the inner cylinder and the inner circumference of the outer cylinder is used as a carbonated water flow path. A means was used in which a portion formed a concentrate flow path across the carbonated water flow path.

In the pouring nozzle of the present invention, the outer cylinder and the inner cylinder are doubled to form the carbonated water flow path, and the undiluted solution flow path is formed from the inner cylinder to the outer cylinder. In other words, in the present invention, the undiluted solution is initially introduced into the inner cylinder, which is the center of the nozzle, and then discharged from the side of the carbonated water flow channel by the undiluted solution flow channel. Then, the carbonated water and the undiluted solution are introduced into the carbonated water channel and the undiluted solution channel respectively from the carbonated water flow lower part and the undiluted solution nozzle on the server side. Since the carbonated water flow path and the undiluted solution flow path are independent, unlike the conventional mixing nozzle, the carbonated water and the undiluted solution are mixed before pouring into the container, and the carbon dioxide gas does not escape. Moreover, since the carbonated water and the undiluted solution are separately poured into the container by the independent carbonated water channel and the undiluted solution flow channel, the carbonated water and the undiluted solution do not come into contact with each other even when they are poured into the container, resulting in no foaming. Then, in the present invention, the carbonated water and the stock solution are mixed in the container.

By the way, in the present invention, the carbonated water is poured vertically from the center of the outer cylinder, and the undiluted solution is independently poured from the sides. Therefore, in a state in which the container containing ice is upright, the carbonated water poured out from the center of the outer cylinder comes into contact with the ice. However, in experiments by the applicant, when carbonated water comes into contact with ice, this does not cause excessive foaming.

One possible reason for this is that although carbonated water naturally foams inevitably, the bubbles are very fine and disappear quickly on the surface of the liquid. In particular, since the ice and the inside of the container are in a low-temperature atmosphere, it is considered to be one of the reasons that natural foaming is suppressed more than at room temperature.

In addition, it is inevitable that bubbles will be generated due to the impact when contacting ice, but the amount of such bubbles is considered to be very small. That is, it is empirically known that if the surface of ice is smooth, the amount of bubbles generated is greatly suppressed even when carbonated water is poured onto the ice. Therefore, in the case of the present invention, it is presumed that the contact with carbonated water makes the ice surface smoother and suppresses the amount of bubbling.

On the other hand, since the undiluted solution does not contain dissolved carbon dioxide gas, it itself does not generate bubbles.

In addition, in the present invention, while the carbonated water and the stock solution are separately poured into the ice-filled container as described above, little foaming occurs, so that the carbonated drink can be poured out to the full container in one operation. can be done.

In the present invention, carbonated water and concentrate are mixed in a container. That is, while the carbonated water and the stock solution are poured out at the same time, the stock solution is gradually diluted with the carbonated water to form the carbonated beverage. Here, the object of the present invention can be achieved by constructing only one undiluted solution flow path. However, in a single flow path, if the container is fixed and the undiluted solution is poured out, the undiluted solution will be concentrated in one place where the container is located. Difficult to mix. Therefore, the larger the number of liquid flow paths, the more evenly the raw liquid and the carbonated water can be mixed. Therefore, it is preferable that a plurality of undiluted solution flow paths are branched at equal intervals from the inner cylinder. By configuring multiple concentrate flow paths in this way, the concentrate can be more evenly mixed with the carbonated water. . Therefore, it is appropriate that the number of raw liquid flow paths is two to three. However, the number may be four or more, and in this case, the diameter of the flow path of the raw liquid flow path is reduced to adjust the total flow rate of the raw liquid to the optimum.

In addition, in the present invention, means is used in which the two stock solution flow paths are branched from the inner cylinder in a V-shape. Since the two stock solution flow paths are thus formed in an inverted V shape, the undiluted solution is also poured into the container in an inverted V shape. This ensures that the stock solution does not come into contact with the carbonated water during dispensing and also allows for more even mixing as the stock solution adheres to the top of the inner surface of the container and gradually droops to the bottom. Realized. In other words, if the stock solution is discharged straight downward, a large amount of the stock solution will accumulate at the bottom of the container due to the difference in specific gravity. When the undiluted solution is discharged into the container at an angle, as described above, the undiluted solution adheres to the upper inner surface of the container and gradually hangs down from there, so the concentration of the undiluted solution is stable and uniform at any depth of the container. It is possible to provide a carbonated beverage with an appropriate concentration. ,

In addition, in the present invention, as described above, excessive foaming can be suppressed even when the container is upright, but the method of pouring by tilting the container is not excluded. In other words, if the container is tilted for pouring, the height difference between the nozzle of the present invention and the container is reduced, so that the carbonated water and the stock solution can be gently poured into the container, and excessive foaming can be prevented more reliably. It is thought that it will contribute to Therefore, by cutting the lower part of the outer cylinder obliquely, it is possible to apply the lower surface of the nozzle to the inner surface of the inclined container so that it is almost in close contact with the inner surface of the container. It is possible to pour out.

Furthermore, by providing a notch in the obliquely cut lower sharp portion of the outer cylinder, carbonated water can escape from the notch even if the lower surface of the nozzle comes into close contact with the inner surface of the container.

As described above, in the present invention, the carbonated water is discharged from the center of the lower surface of the nozzle, and the undiluted solution is discharged from the sides thereof. Spitting is not contemplated by the present invention. In the latter case, when poured into an ice-filled container, the undiluted solution is blocked by the ice, making it difficult to move to the bottom of the container, making it difficult to mix evenly. This is because the amount of foaming increases, and it is conceivable that foaming will occur due to contact with the stock solution adhering to the ice above the container.

According to the present invention, the carbonated water and the undiluted solution are separately poured out, and moreover, the carbonated water is discharged from the center of the lower surface of the nozzle, and the undiluted solution is discharged from the side of the nozzle. Excessive foaming is suppressed during pouring, and it is possible to efficiently provide a strongly carbonated carbonated beverage.

1 is an exploded perspective view of a pouring mechanism of a post-mix carbonated beverage server including a pouring nozzle according to an embodiment of the present invention; FIG. Same, (a) front view, (b) rear view, (c) side view, (d) plan view, (e) bottom view of the pouring nozzle AA line sectional view of FIG. 2(a) BB line sectional view of FIG. 2(c) Same, disassembled sectional view of pouring mechanism Assembled sectional view of pouring mechanism Perspective view showing how to use the same Perspective view showing another usage of the same Perspective view showing still another usage of the same Schematic cross-sectional view showing a modification of the present invention An exploded perspective view of a pouring mechanism of a post-mix type carbonated drink server according to Non-Patent Document 1.

Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. FIG. 1 is an exploded perspective view in which a pouring nozzle N according to one embodiment of the present invention is applied to a pouring mechanism of a conventional post-mix type carbonated drink server. In other words, the figure has the pouring mechanism described according to FIG. Therefore, the same members as those in FIG. 11 are denoted by the same reference numerals. In the same figure, the undiluted solution nozzle 31 does not have horizontal supply holes on the tip side, but is replaced by a simple straight pipe. An adapter 36 is attached to the undiluted solution nozzle 31 to ensure connection with the dispensing nozzle N of the present invention. 37 is an O-ring attached to the adapter 36 .

The basic configuration of the pouring nozzle N of the present invention will be described with reference to FIGS. 2-4. As shown in FIG. 2, the pouring nozzle N has a shape like a bamboo spear obtained by obliquely cutting the lower part of a cylindrical member, but the internal structure is as shown in FIGS. In addition, it has a double cylinder shape in which the outer cylinder 1 and the inner cylinder 2 are double arranged. The outer cylinder 1 has ridges 3 formed at every 90 degrees on its upper outer surface, which are used as finger hooks when the nozzle N is attached to the pouring mechanism. Further, in the outer cylinder 1, the lower surface 5 is inclined by cutting the lower portion obliquely upward toward the rear side so that the sharpened portion 4 is positioned on the front side.

The outer cylinder 1 is basically hollow cylindrical, and has a female screw 6 on the inner wall of the upper part for screwing the lower part of the carbonated water stream on the server side to attach the nozzle N to the pouring mechanism, as will be described later. forming Further, below the female thread 6, a reduced diameter portion 8 is formed with a reduced inner diameter through a rounded portion 7. As shown in FIG.

On the other hand, the inner cylinder 2 has a concave portion 9 with an open top, but is a cylindrical body with a bottom, and is located at the center (center) of the outer cylinder 1 below the rounded portion 7 . and are arranged coaxially. The undiluted solution nozzle 31 is connected to the upper concave portion 9 by an adapter 36 as will be described later.

A pair of left and right branch holes 10 are formed in the peripheral wall on the bottom side of the recessed portion 9, and two undiluted solution flow paths 11 are formed in a V-shape from here to the left and right of the lower surface of the outer cylinder 1. ing. The lower end portions 11a of these undiluted solution flow paths 11 protrude from the left and right side surfaces of the outer cylinder 1, and the lower surface of the lower end portions 11a is also cut obliquely so as to be flush with the lower surface of the outer cylinder 1. As shown in FIG. Further, the lower part of the inner cylinder 2 is formed with a small projection 13 by reducing the diameter of the tip side thereof, and the lower surface of the small projection 13 is also cut diagonally so as to be flush with the lower surface of the outer cylinder 1. there is

In the nozzle N configured in this way, the annular space formed by the diameter-reduced portion 8 of the outer cylinder 1 and the inner cylinder 2 serves as the carbonated water flow path 13 . However, this carbonated water channel 13 is crossed by a part of the undiluted solution channel 11 on the left and right sides thereof.

Furthermore, in this embodiment, a circular groove 14 is provided in the lower surface 5 of the outer cylinder 1 and a V-shaped notch 15 communicating with the groove 14 is provided in the sharpened portion 4 .

5 and 6 are an exploded cross-sectional view and an assembled cross-sectional view of the server-side extraction mechanism in FIG. Here, the server-side pouring mechanism is obtained by adding a carbonated water flow rate adjusting body 40 between the pouring part 30 and the canopy 344 of FIG. On the other hand, he is trying to supply carbonated water with stronger carbonation. The configuration and effect of installing this carbonic acid flow rate adjuster 40 are already known from Japanese Patent Application Laid-Open No. 2017-105534 filed by the applicant of the present application, but just in case, they will be described first.

5 and 6, from the top, 30 is a pouring part, 40 is a carbonated water flow rate adjusting body, and 34 is a canopy. is installed through the adapter 36.

The pouring part 30 is formed with a space 33a into which the carbonated water is initially introduced via the carbonated water flow path 33 on the downstream side of the on-off valve of the carbonated water. A circular concave carbonated water flow lower portion 33b is formed in the vertical direction. Reference numeral 33c denotes a mouthpiece to which the pouring nozzle N of the present invention is attached, and has a male screw 33d formed on the outer periphery thereof to which the female screw 6 of the pouring nozzle N is screwed. forming.

On the other hand, 33 e is a concentrated solution introduction passage for introducing the concentrated solution on the downstream side of the supply valve for the concentrated beverage, and communicates with the concentrated solution nozzle 31 . The undiluted solution nozzle 31 is integral with the pouring part 30 and is provided vertically concentrically inside the carbonated water flow lower part 33b. In this embodiment, the undiluted solution nozzle 31 is a straight pipe penetrating vertically.

The flow rate adjuster 40 is a hollow cylindrical member having a circular cross-sectional hole 41 through which the undiluted solution nozzle 31 is inserted. is equipped with a seal ring 42 such as an O-ring. The seal ring 42 allows the fluid adjuster 40 to be water-tightly fitted to the carbonated water flow lower portion 33b. On the other hand, the hole 41 having a circular cross section has an inner diameter such that an annular gap 43 is formed between it and the undiluted solution nozzle 31 as shown in FIG. This annular gap 43 functions as a decompression channel for carbonated water.

The canopy 34 has a gear-like shape in a plan view with a plurality of U-shaped grooves provided at equal intervals on the outer peripheral edge, and an insertion hole 34a for the undiluted solution nozzle 31 is formed in the center. The carbonated water that has passed through the fluid adjuster 40 flows down from the upper surface of the canopy 34 along the grooves to the lower surface.

In the pouring mechanism, the undiluted solution nozzle 31 is inserted through the flow rate adjusting body 40 at its center, and the carbonated water flow lower part 33b of the pouring part 30 is fitted. 37 already installed), and finally the pouring nozzle N of the present invention is installed to complete the assembly (Fig. 6). Then, the carbonated water is guided to the canopy 34 through a gap 43 between the circular cross-sectional hole 41 of the flow rate adjusting body 40 and the undiluted solution nozzle 31 . Since this gap 43 functions as a decompressing flow path for carbonated water, carbonated water can be stably supplied to the nozzle N through the canopy 34 in a strongly carbonated state.

The carbonated water supplied in the strongly carbonated state in this way is finally discharged from the center of the lower surface of the nozzle through the carbonated water channel 13 of the nozzle N as indicated by the arrow A in FIG. On the one hand, the undiluted solution supplied from the undiluted solution nozzle 31 is introduced into the recessed portion 9 of the inner cylinder 2 through the adapter 36, introduced into the undiluted solution channel 11 through the branch hole 10, and finally reaches the direction indicated by the arrow B in FIG. As shown, the liquid is discharged obliquely downward in an inverted V shape from the left and right sides of the lower surface of the nozzle.

FIG. 7 shows how to use this nozzle N, and directly below this nozzle N, a container G containing ice I is held in an upright state. In this state, the carbonated water poured out from the main nozzle N is discharged straight downward as indicated by the arrow A in the figure, and the liquid volume increases while coming into contact with the ice I. On the other hand, the undiluted solution is discharged obliquely downward as indicated by arrow B in the figure, and first touches the inner wall of the container G near the top, and then gradually drips down along the inner wall to the bottom side. . That is, in the pouring nozzle N according to this embodiment, the volume of the carbonated water gradually increases upward from the bottom side of the container G, and the undiluted solution moves gradually downward from the upper side of the container G. According to such a pouring mode, the undiluted solution with a large specific gravity is less likely to accumulate on the bottom side of the container G, and is evenly mixed with the carbonated water.

FIG. 8 shows another method of use, in which the height of the container G with respect to the nozzle N is approximately the same as in FIG. It is. When the ice I to be used has a rough surface, this serves as a pouring method for preventing the carbonated water from foaming upon contact with the ice.

FIG. 9 shows still another method of use, in which the container G is tilted in the same manner as in FIG. ing. This makes it possible to more reliably prevent the carbonated water from foaming. Also, the undiluted solution can be discharged into the container G more reliably than in the case of FIG. In this method of use, the lower surface of the nozzle N can be brought into close contact with the inner wall of the container G, so that the carbonated water can be poured into the container G without any drop. At this time, since the sharp end 4 of the nozzle is provided with the notch 15, the carbonated water can be reliably poured out through the notch 15 even if the lower surface of the nozzle is brought into close contact with the container G.

Regardless of the method of use, according to the pouring nozzle N of the present invention, it is possible to pour out a full container of carbonated beverages in one operation without excessive foaming.

In addition, this invention is not limited to the said embodiment. For example, regarding the configuration for connecting the undiluted solution nozzle 31 on the server side, in the above-described embodiment, an adapter 36 is used, and an O-ring 37 is attached to the adapter 36 to ensure watertightness in the recessed portion 9 of the inner cylinder 2. However, as shown in FIG. 10, by installing an O-ring 37 on the inner wall of the recessed portion 9, the undiluted solution nozzle 31 can be directly connected to the inner cylinder 2, and the adapter 36 can be omitted. It is possible to reduce the cost and also reduce the size of the nozzle.

In addition, as for the overall shape, in the above-described embodiment, the lower part of the nozzle is made into a bamboo spear shape by obliquely cutting, so that the method of use described with reference to FIG. 9 is made possible. Range.

Moreover, the number of the undiluted solution flow paths 11 is not limited to two, but may be one, or three or more may be provided at regular intervals. Furthermore, the direction of the flow path is not limited to the obliquely downward direction as in the case of the V-shape, and the liquid may be discharged in the vertical direction in parallel with the carbonated water. What is required in the present invention is that the carbonated water is discharged from the center of the nozzle, and the undiluted solution is poured out from the side of the nozzle without contacting the carbonated water.

1 Outer cylinder 2 Inner cylinder 4 Pointed portion 9 Concave portion 10 Branch hole 11 Undiluted solution channel 13 Carbonated water channel 15 Notch

Claims (4)

A post-mix type carbonated drink server in which a carbonated water flow lower part for flowing down carbonated water and an undiluted solution nozzle inside the carbonated water flow lower part are provided coaxially on the downstream side of each opening and closing valve for the carbonated drink undiluted solution and the carbonated water. a hollow outer cylinder connected to the lower part of the carbonated water stream so as to allow carbonated water to be introduced; An annular space formed by the outer circumference of and the inner circumference of the outer cylinder is used as a carbonated water flow path, while a concentrated solution flow path partially crosses the carbonated water flow path from the bottom of the inner cylinder to the bottom of the outer cylinder. , and at least two of the undiluted solution flow paths are branched from the inner cylinder . A post-mix type carbonated drink server in which a carbonated water flow lower part for flowing down carbonated water and an undiluted solution nozzle inside the carbonated water flow lower part are provided coaxially on the downstream side of each opening and closing valve for the carbonated drink undiluted solution and the carbonated water. a hollow outer cylinder connected to the lower part of the carbonated water stream so as to allow carbonated water to be introduced; An annular space formed by the outer circumference of and the inner circumference of the outer cylinder is used as a carbonated water flow path, while a concentrated solution flow path partially crosses the carbonated water flow path from the bottom of the inner cylinder to the bottom of the outer cylinder. , and two undiluted solution flow paths are branched from the inner cylinder in an inverted V shape . 3. A dispensing nozzle for a post-mix type carbonated beverage server according to claim 1 or 2, wherein the lower portion of the outer cylinder is obliquely cut. 4. The pouring nozzle for a post-mix type carbonated beverage server according to claim 3 , wherein a notch is provided in the obliquely cut lower sharp portion of the outer cylinder.

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