JP2016172580A - Beverage feed nozzle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a beverage feed nozzle which can secure the prescribed discharge time while suppressing reduction in the gas volume with a pressure reducing part.SOLUTION: A beverage feed nozzle 1 for discharging carbonated water is formed of a hollow tubular body 2 and a polygonal columnar resistive element 3 arranged in the tubular body 2. The resistive element 3 has a double structure divided in the radial direction and composed of at least an inner resistive element 32 formed as a solid polygonal column and an outer resistive element 31 obtained by forming the hollow tubular outer wall into the polygonal shape. A gap formed between the outer wall plane part of the outer resistive element 31 and the inner wall surface of the tubular body 2 and a gap formed between the plane part of the inner resistive element 32 and the inner wall surface of the outer resistive element 31 are defined as pressure reducing parts. A passage amount of carbonated water per unit time is secured by increasing a gap while preventing reduction in the gas volume by reducing the gap.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a beverage supply nozzle in a beverage supply device such as a beverage dispenser and a cup-type vending machine, and more particularly to a beverage supply nozzle that discharges carbonated water generated inside the beverage supply device.

  For example, in a beverage dispenser that mixes and sells one syrup selected from a plurality of different types of syrup (concentrated liquid) and dilution water such as carbonated water and cold water, cold water and carbon dioxide gas are contained inside the beverage dispenser. And a carbonater for producing carbonated water by mixing the carbonated water, and the carbonated water produced by the carbonator is poured out from the beverage supply nozzle into the beverage container. FIG. 7 shows a conventional example of this type of beverage supply nozzle, and FIG. 7 is a sectional view of the conventional beverage supply nozzle.

  As shown in FIG. 7, the beverage supply nozzle 200 includes a hollow tubular body 201 and a resistor 202 inserted into the tubular body 201. A carbonated water introduction portion 203 is attached to the upper end of the tubular body 201, while the lower end is formed as a discharge port 204. In addition, a cold water introduction path 205 is formed in the middle region of the tubular body 201 so as to protrude radially outward, and a net 206 serving as a filter member is disposed therein. The resistor 202 is formed as a solid polygonal column made of a columnar body having a polygonal cross section (for example, a dodecagon), and has a head protruding in a conical shape. The resistor 202 is inserted into the hollow portion of the tubular body 201 so that the corners thereof are in contact with the inner wall surface of the tubular body 201, whereby the resistor 202 is interposed between the flat portion of the resistor 202 and the inner wall surface of the tubular body 201. A gap (pressure reduction part) is formed. The carbonated water introduction unit 203 is configured such that carbonated water generated by mixing cold water and carbon dioxide gas by the carbonator 207 is supplied via the electromagnetic valve V1, and the cold water introduction path 205 is supplied from the city water supply. The cold water obtained by cooling the tap water through the cooling water tank is supplied through the electromagnetic valve V2.

  In such a configuration, when a carbonated beverage-based beverage selection button provided on the operation panel of the beverage dispenser is pressed, the electromagnetic valve V1 is excited at a predetermined timing, and the carbonated carbon dioxide produced by mixing the cold water and carbon dioxide gas by the carbonator 207. Water is pumped to the carbonated water introduction unit 203. The carbonated water pumped to the carbonated water introduction portion 203 is uniformly distributed along the conical head of the resistor 202 and then formed between the flat portion of the resistor 202 and the inner wall surface of the tubular body 201. The liquid is discharged from the discharge port 204 through the gap. When a non-carbonated beverage selection button provided on the operation panel of the beverage dispenser is pressed, the electromagnetic valve V2 is excited at a predetermined timing, and cold water is supplied from the protruding port 204 of the tubular body 201 via the cold water introduction path 205. Is discharged (for example, Patent Document 1).

JP 2012-144272 A

  According to the invention disclosed in Patent Document 1, carbonated water pumped to the carbonated water introduction portion 203 passes through a gap formed between the flat portion of the resistor 202 and the inner wall surface of the tubular body 201. Since the pressure is reduced at that time, it is possible to prevent a decrease in gas volume due to the separation of the carbon dioxide gas. In addition, since the head of the resistor 202 is formed in a conical shape, the carbonated water is the head of the resistor 202. It is excellent in that it can suppress the separation of carbon dioxide gas generated by the generation of vortices because it is distributed around and flows to the gap (pressure reducing part) without generating vortices when it collides with the part .

  By the way, the smaller the gap (pressure reduction part) formed between the flat part of the resistor 202 and the inner wall surface of the tubular body 201, the lower the gas volume due to the separation of carbon dioxide when carbonated water passes through. Therefore, if the number of corners of the polygonal column resistor 202 is increased, the gap (pressure reduction part) can be reduced. However, if the gap (pressure reducing portion) is reduced, the passing speed of carbonated water passing through the resistor 202 is decreased. The passage speed is proportional to the discharge time of carbonated water discharged from the beverage supply nozzle 200, and the discharge time of discharging a predetermined amount of carbonated water required for sale from the drink supply nozzle 200 becomes longer as the passage speed decreases. . This means that the sales time of the beverage dispenser (the time from when the beverage selection button is pressed until the predetermined amount of beverage is dispensed into the beverage container) becomes longer. The sales time of the beverage in the beverage dispenser is an important factor, and a predetermined sales time must be secured. Therefore, the gas volume is reduced by increasing the number of corners of the polygonal resistor 202 and reducing the gap (pressure reducing portion) formed between the flat portion of the resistor 202 and the inner wall surface of the tubular body 201. Since trying to suppress increases the sales time, the number of corners of the polygonal column resistor 202 cannot be increased in order to secure a predetermined sales time, and the gap (pressure reducing part) is reduced. There is a limit. In addition, in order to ensure sales time, if the diameter of the resistor 202 or the tubular body 201 is increased and the inner diameter of the tubular body 201 that the polygonal corners of the resistor 202 are in contact with is increased, the beverage volume can be suppressed while suppressing the decrease in the gas volume. Although it is possible to ensure the discharge time of carbonated water from the supply nozzle 200, increasing the diameter of the resistor 202 or the tubular body 201 in this way requires the installation space for the beverage supply nozzle 200 to be secured. Is not a good idea.

  The present invention has been made in view of the above points, and an object of the present invention is to provide a beverage supply nozzle capable of solving the above-described problem and ensuring a predetermined discharge time while suppressing a decrease in gas volume due to the pressure reducing unit. It is to provide.

  In order to achieve the above object, the invention according to claim 1 is a beverage supply nozzle that discharges after depressurizing high-pressure carbonated water generated by mixing cold water and carbon dioxide with a resistor, from one end. A hollow tubular body that discharges the introduced carbonated water from the discharge port at the other end, and a resistor that is disposed inside the tubular body and is formed as a polygonal column having a polygonal cross section. In the beverage supply nozzle provided, the resistor comprises a double structure comprising an inner resistor formed as at least a solid polygonal column divided in the radial direction and an outer resistor formed in a polygonal shape with a hollow tubular outer wall. The gap formed between the outer wall plane of the outer resistor and the inner wall surface of the tubular body and the gap formed between the plane of the inner resistor and the inner wall surface of the outer resistor are respectively pressured. It is characterized by having a decompression part

  The invention according to claim 2 is the beverage supply nozzle according to claim 1, wherein the resistor and the inner wall of the tubular body into which the resistor is inserted discharge carbonated water from the upstream side where carbonated water is introduced. It is characterized by having a gradient in which the diameter gradually decreases toward the downstream side.

  The beverage supply nozzle according to claim 1 of the present invention is a beverage supply nozzle that discharges the high-pressure carbonated water generated by mixing cold water and carbon dioxide gas after depressurizing with a resistor, from one end. A hollow tubular body that discharges the introduced carbonated water from the discharge port at the other end, and a resistor that is disposed inside the tubular body and is formed as a polygonal column having a polygonal cross section. In the beverage supply nozzle provided, the resistor is a double structure comprising an inner resistor formed as at least a solid polygonal column divided in the radial direction and an outer resistor formed in a polygonal shape on the outer periphery of the hollow tube. The gap formed between the outer wall plane of the outer resistor and the inner wall surface of the tubular body and the gap formed between the plane of the inner resistor and the inner wall surface of the outer resistor are respectively pressured. By using the decompression section, the inner resistance By increasing the number of corners of the body and the outer resistor to reduce the gap (pressure decompression section), the reduction in gas volume due to the separation of carbon dioxide when carbonated water passes through the gap (pressure decompression section) is suppressed. Since the number of the gaps (pressure depressurization part) increases even if the passing speed of the carbonated water passing through the gap (pressure depressurization part) decreases, the amount of carbonated water passing per unit time can be reduced. Since the number can be increased, the desired amount of carbonated water can be discharged during a predetermined discharge time.

It is a perspective view which shows the whole structure of the drink dispenser (beverage supply apparatus) concerning embodiment of this invention. The drink supply nozzle of FIG. 1 is shown, (a) is a side view which shows the whole structure, (b) is the sectional view on the AA line of (a). It is sectional drawing of the tubular body in the drink supply nozzle of FIG. The outer side resistor in the drink supply nozzle of FIG. 2 is shown, (a) is the side view, (b) is CC sectional view taken on the line of (a). It is a side view of the inner side resistor in the drink supply nozzle of FIG. Sectional drawing of the drink supply nozzle of FIG. 2 is shown, (a) is the BB sectional drawing of (a) of FIG. 2, (b) is an enlarged view of the D section of (a). It is sectional drawing which shows the conventional drink supply nozzle.

  Hereinafter, a beverage supply nozzle in a beverage supply device such as a beverage dispenser according to an embodiment of the present invention will be described in detail based on the drawings.

  As shown in FIG. 1, a beverage dispenser (beverage supply device) 100 includes a dispenser main body 101 formed as a housing having an opening on the front surface, and a front surface of the dispenser main body 101 so as to close the front opening of the dispenser main body 101. The front door 102 is supported on one side, and an operation panel having a beverage selection button 103 is disposed on the front surface (front surface) of the front door 102. In the dispenser body 101, a beverage supply nozzle 1 for supplying a beverage is arranged below the right side of the opening when viewed from the front, and below that a cup rest 104 serving as a table for a cup as a beverage container, and a drip for collecting scattered beverages, etc. A tray 105 is provided. In the dispenser body 101, a tube-type pump that pumps a predetermined amount of syrup stored in a BIB (Bag In Box) housed in the refrigerator, a cooling water tank for cooling dilution water (cold water), and immersed in this cooling water tank As is well known, carbonators, syrups, and electromagnetic valves for diluting water, which generate carbonated water (diluted water), are installed.

  As shown in FIG. 2, the beverage supply nozzle 1 includes a hollow tubular body 2 and a resistor 3 inserted into the hollow tubular body 2.

  The tubular body 2 is a molded product of a synthetic resin, and a carbonated water introducing portion 4 is attached to one end (upper end in the figure) and the other end (lower end in the figure) is formed as a discharge port 21. Further, a cold water introduction path 22 is formed in the intermediate region of the tubular body 2 so as to protrude in the radially outward direction. The carbonated water introducing portion 4 is integrated with the tubular body 2 by being press-fitted into the upper end of the tubular body 2 via an O-ring 40. The carbonated water introduction path 4 is formed with a carbonated water introduction path 41 projecting upward, and a carbonated water passage is formed to expand in a morning glory shape around the axis of the carbonated water introduction path 41. Although not shown, the carbonated water introduction passage 41 is connected to a high-pressure carbonated water supply pipe generated by a carbonator via an electromagnetic valve.

  A resistor housing region RS (for example, a length dimension of 20 mm) above the beverage supply nozzle 1 is formed to have a relatively large diameter as a housing space for the resistor 3 described later. The passage on the downstream side of the resistor housing region RS is configured to reach the discharge port 21 in a funnel shape. The resistor housing region RS (for example, a length of 20 mm) has a lower end side (downstream from which carbonated water is discharged) of the resistor housing region RS with respect to the diameter of the upper end side (upstream side where carbonated water is introduced). The side) is formed to have a small diameter. That is, as shown in FIG. 3, when the vertical line segment is VL and the inner wall line segment and the outer wall line segment in the resistor housing region RS of the tubular body 2 are each AL, the inner wall in the resistor housing region RS of the tubular body 2 The outer wall is provided with a gradient (for example, a gradient of 3 degrees) in which the diameter gradually decreases from the upstream side in the resistor housing region RS toward the downstream side in the resistor housing region RS. The cold water introduction path 22 communicates with a funnel-shaped path.

  The resistor 3 is divided into a plurality of parts in the radial direction. In this embodiment, the resistor 3 is divided into an outer resistor 31 and an inner resistor 32 to form a double structure. Each of the outer resistor 31 and the inner resistor 32 is a molded product of synthetic resin.

  As shown in FIG. 4, the outer resistor 31 is formed in a hollow tubular shape, and the outer wall is formed in a polygonal shape (for example, a regular 27-gon) having a plurality of corner portions 31C and a flat portion 31P. . In addition, when the outer wall and the inner wall of the outer resistor 31 have a vertical line segment VL and the outer resistor 31 has an inner wall segment and an outer wall segment AL, the diameter gradually decreases from the upstream side toward the downstream side. (E.g., a 3 degree gradient). The diameter of the circle connecting the corners 32C at the upper end of the outer wall of the outer resistor 31 is set to a diameter that matches the diameter of the inner wall at the upper end in the resistor housing region RS of the tubular body 2. Note that the outer walls of the upper and lower ends of the outer resistor 31 are formed as inclined surfaces that narrow toward the inner wall, and the inclined surfaces of the upper end portions of the conical head 320 of the inner resistor 32 described later. It is comprised so that it may correspond with the inclination-angle of an inclined surface.

  As shown in FIG. 5, the inner resistor 32 is formed as a polygonal polygonal column (for example, a regular 21-sided polygon) made up of a plurality of solid corners 32C and a plane part 32P, and has a cone on the head. A shaped head 320 is provided. On the outer wall of the inner resistor 32, when the vertical line segment is VL and the outer wall line segment of the inner resistor 32 is AL, the gradient gradually decreases from the upstream side toward the downstream side (for example, 3 degrees). The slope is attached. The diameter of the circle connecting the upper corners 32 </ b> C of the outer wall of the inner resistor 32 is determined to be equal to the diameter of the upper end of the inner wall of the outer resistor 31.

  The resistor 3 is assembled by inserting the lower end of the inner resistor end 32 from the upper end opening of the hollow outer resistor 31. In this case, since the inner wall of the outer resistor 31 and the outer wall of the inner resistor 32 are provided with a gradient in which the diameter gradually decreases from the upstream side to the downstream side, the outer resistor 31 can be easily assembled and the outer resistor can be easily assembled. The dimensional error between the inner wall of the body 31 and the outer wall of the inner resistor 32 is absorbed, and the center position of the outer resistor 31 is in a state where all the corners 32C of the inner resistor 32 are in contact with the inner wall surface of the outer resistor 31. A gap GPA (FIG. 6B) as a pressure reducing part formed between all the planar portions 32P of the inner resistor 32 and the inner wall surface of the outer resistor 31 with the center position of the inner resistor 32 matching. The area of (see) is constant. Therefore, when the outer resistor 31 and the inner resistor 32 are not provided with a gradient, the inner resistor 32 cannot be inserted into the outer resistor 31 due to the respective dimensional tolerances. The center position of 31 and the center position of the inner resistor 32 are deviated so that the gap (pressure reducing part) GPA cannot be set to a constant value, and problems such as a decrease in gas volume and variation in discharge speed can be eliminated. It becomes possible.

  The resistor 3 assembled in this way is inserted into the inside of the tubular body 2 from the upper end opening of the hollow tubular body 2 and attached to the resistor housing region RS. In this case, the outer wall of the resistor 3 (outer wall of the outer resistor 31) and the inner wall of the resistor body housing region RS of the tubular body 2 are provided with a gradient in which the diameter gradually decreases from the upstream side toward the downstream side. The resistor 3 can be easily attached to the tubular body 2. Further, the center position of the resistor 3 and the center position of the inner wall of the tubular body 2 are in a state where all the corners of the resistor 3 (all the corners 31C of the outer resistor 31) are in contact with the inner wall surface of the tubular body 2. Therefore, the gap GPB (FIG. 6 (FIG. 6)) is formed as a pressure reducing portion formed between all the flat portions of the resistor 3 (all the flat portions 31P of the outer resistor 31) and the inner wall surface of the tubular body 2. The area of b) is constant. That is, also in this case, the dimensional error between the resistor 3 and the tubular body 2 can be absorbed by the gradient applied to the resistor 3 and the tubular body 2.

  Now, as shown in FIG. 6 which shows the cross section taken along the line B-B of FIG. 2A, the beverage supply nozzle 1 assembled as described above has all the flat portions (of the outer resistor 31). In addition to the 27 gaps (pressure reduction parts) GPB formed between all the plane parts 31P) and the inner wall surface of the tubular body 2, all the plane parts 32P of the inner resistor 32 and the outer resistor 31 Twenty-four gaps (pressure reduction parts) GPA are formed between the inner wall surfaces. Therefore, by increasing the number of corners of the resistor 3 and reducing the gaps (pressure reducing parts) GPA, GPB, the gas volume due to separation of carbon dioxide when carbonated water passes through the gaps (pressure reducing parts) GPA, GPB. Decrease in the gap (pressure decompression section) GPA, GPB by reducing the gap (pressure decompression section) GPA, GPB, the decrease in the passing speed of carbonated water passing through the gap (pressure decompression section) GPA, GPB Since the number of passages of carbonated water per unit time can be increased by increasing the number of pressure reducing units GPA and GPB, a desired amount of carbonated water can be discharged at a predetermined discharge time.

  The carbonated water introduction path 41 (see FIG. 2) of the beverage supply nozzle 1 having such a configuration is supplied with carbonated water generated by mixing cold water and carbon dioxide gas by a carbonator through an electromagnetic valve (not shown). The cold water introduction path 22 is configured such that cold water obtained by cooling tap water from a city water supply via a cooling water tank is supplied via an electromagnetic valve V2. When a carbonated beverage-based beverage selection button 103 provided on the operation panel of the beverage dispenser 100 (see FIG. 1) is pressed, an electromagnetic valve for carbonated water is excited at a predetermined timing, and cold water and carbon dioxide gas are generated by the carbonator. The carbonated water produced by mixing is pumped to the carbonated water introduction path 41. The carbonated water pumped to the carbonated water introduction path 41 is evenly distributed along the conical head portion 320 of the resistor 3 (inner resistor 32), and all the flat portions 32P and the outside of the inner resistor 32 are outside. The gap (pressure reduction part) GPA formed between the inner wall surface of the resistor 31 and all the plane parts of the resistor 3 (all the plane parts 31P of the outer wall of the outer resistor 31) and the inside of the tubular body 2 The liquid is discharged from the discharge port 21 through a gap (pressure reduction part) GPB formed with the wall surface. Note that when a non-carbonated beverage-based beverage selection button 103 provided on the operation panel of the beverage dispenser 100 is pressed, a cold water electromagnetic valve is excited at a predetermined timing and the cold water is introduced from the protruding port 21 through the cold water introduction path 22. Is discharged.

  As described above, the beverage supply nozzle 1 according to this embodiment is a beverage supply nozzle 1 that discharges the high-pressure carbonated water generated by mixing cold water and carbon dioxide gas after the pressure is reduced by the resistor 3. A hollow tubular body 2 that discharges carbonated water introduced from one end through the discharge port 21 at the other end, and a polygonal column that is disposed inside the tubular body 2 and has a polygonal columnar cross section. In the beverage supply nozzle provided with the formed resistor 3, the resistor 3 is formed in a polygonal shape with an inner resistor 32 formed as at least a solid polygonal column divided in the radial direction and a hollow tubular outer wall. A gap GPB formed between the outer wall plane portion 31P of the outer resistor 31 and the inner wall surface of the tubular body 2, and the plane portion 32P of the inner resistor 32. Outer resistor 31 By using the gap GPA formed between the inner wall surface and the inner wall surface as pressure reducing parts, respectively, the number of corners of the inner resistor 32 and the outer resistor 31 is increased to reduce the gaps (pressure reducing parts) GPA and GPB. Accordingly, it is possible to suppress a decrease in gas volume due to separation of carbon dioxide gas when carbonated water passes through the gaps (pressure decompression parts) GPA and GPB, and to pass through the gaps (pressure decompression parts) GPA and GPB. Even if the passage speed of carbonated water decreases, the number of gaps (pressure reducing parts) GPA and GPB increases, so the amount of carbonated water passed per unit time can be increased. Can be discharged at a predetermined discharge time.

  In the above-described embodiment, the double structure having the resistor 3 divided into two in the radial direction has been described. However, the resistor 3 can be divided into a plurality of pieces in the radial direction. Moreover, although what provided the cold water introduction path 22 in the tubular body 2 as the drink supply nozzle 1 was demonstrated, it can apply also to the thing which is not equipped with the cold water introduction path 22. FIG. Therefore, the present invention is not limited to the embodiment.

  DESCRIPTION OF SYMBOLS 1 ... Beverage supply nozzle, 2 ... Tubular body, 3 ... Resistor, 21 ... Discharge port, 31 ... Outer resistor, 32 ... Inner resistor, 41 ... Carbonated water introduction path, 31C, 32C ... Corner | angular part, 31P, 32P ... Plane, GPA, GPB ... Gap (pressure reduction part).

Claims (2)

A beverage supply nozzle that discharges high-pressure carbonated water generated by mixing cold water and carbon dioxide gas after the pressure is reduced by a resistor, and is a hollow that discharges carbonated water introduced from one end through a discharge port at the other end. A beverage supply nozzle comprising a tubular body and a resistor disposed inside the tubular body and formed as a polygonal column having a polygonal cross section. The resistor is divided in a radial direction. The inner resistor formed as at least a solid polygonal column and a hollow tubular outer wall are formed into a double structure consisting of an outer resistor formed into a polygonal shape, and the outer wall plane portion of the outer resistor and the inner side of the tubular body A beverage supply nozzle, characterized in that a gap formed between the wall surface and a gap formed between the flat surface portion of the inner resistor and the inner wall surface of the outer resistor are used as pressure reducing portions. The beverage supply nozzle according to claim 1, wherein the resistor and the inner wall of the tubular body into which the resistor is inserted gradually increase in diameter from the upstream side where carbonated water is introduced toward the downstream side where carbonated water is discharged. Beverage supply nozzle characterized by having a decreasing gradient.

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