JP2019142581A - Method for fixing inner bag assembly to stainless steel beverage storage container through fixing member, method for taking out beverage, and inner bag assembly - Google Patents

Abstract

To provide an art for facilitating the management of a stainless steel beverage storage container when the stainless steel beverage storage container is recovered and reused, and preventing deterioration in taste, texture, etc. of the beverage.SOLUTION: In a method for fixing an inner bag assembly to a stainless steel beverage storage container via a fixing member, the stainless steel beverage storage container includes a container body and a mouthpiece portion having a female thread portion. The inner bag assembly includes a flexible inner bag body, a first portion having a beverage taking-out valve, and a second portion positioned by the fixing member. The fixing member is provided with a male thread portion. The aforesaid fixing method including an inserting step for inserting the inner bag assembly into a stainless steel beverage storage container, an engaging step for engaging the male screw portion of the fixing member with the female screw portion of the mouthpiece, and a positioning step for positioning the second portion of the inner bag assembly with respect to the fixing member.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a fixing method for fixing an inner bag assembly to a stainless steel beverage storage container via a fixing member, a beverage taking-out method, and an inner bag assembly.

  A technique for forming a beverage take-out portion by fixing a fitting to a base portion of a beer storage container is known.

  FIG. 1 shows an example of a conventional beer storage container 1. FIG. 1 shows a state in which the fitting 10 is attached to the base part 15 by screwing between the male screw part 10 s of the fitting 10 and the female screw part 15 s of the base part 15.

  When taking out a drink from the conventional beer storage container 1, a carbon dioxide gas is supplied in the beer storage container 1, the pressure in the beer storage container 1 is raised, and a drink is pushed out from the beer storage container 1 by the said pressure. In the beer storage container 1, when the ratio of carbon dioxide gas to the beverage increases (in other words, when the remaining amount of the beverage in the beer storage container 1 decreases), excess carbon dioxide gas dissolves in the beverage. If excessive carbon dioxide gas dissolves in the beverage, the taste of the beer, the touch, the feel of foam, and the like deteriorate. For this reason, in the conventional beer storage container 1, after taking out of a drink was started, it was calculated | required to use up a drink within three days.

  In the conventional beer storage container 1, the beer directly touches the beer storage container 1. For this reason, when the beer storage container 1 is collected and reused, labor and cost required for managing the internal state of the beer storage container 1 are large.

  As a related technique, Patent Document 1 discloses a dispenser for draft beer. In the draft beer dispenser described in Patent Document 1, the pressure in the pressure vessel is increased by supplying nitrogen to the pressure vessel containing the draft beer, and the beverage is pushed out of the pressure vessel by the pressure. In the draft beer dispenser described in Patent Document 1, nitrogen is supplied to the pressure vessel instead of carbon dioxide. For this reason, the taste of beer, the touch, the feel of foam, etc. do not deteriorate.

Japanese Patent Laid-Open No. 4-87989

  An object of the present invention is to provide a technique for facilitating the management of a stainless steel beverage storage container when the stainless steel beverage storage container is collected and reused, and preventing the taste, taste, etc. of the beverage from being deteriorated. It is to be.

  Hereinafter, means for solving the problem will be described using the numbers and symbols used in the embodiments for carrying out the invention. These numbers and symbols are added with parentheses for reference in order to show an example of the correspondence between the description of the claims and the mode for carrying out the invention. Accordingly, the claims should not be construed as limiting due to the bracketed description.

  The fixing method in some embodiments is a fixing method in which the inner bag assembly (6) is fixed to the stainless steel beverage storage container (2) via the fixing member (3). The stainless steel beverage storage container (2) includes a container body (20) and a cap part (21) having a female screw part (21s). The inner bag assembly (6) is positioned by a flexible inner bag body (61), a first part (63) having a beverage take-off valve (V1), and a second member positioned by the fixing member (3). Part (68). The fixing member (3) includes a male screw part (31s). The fixing method includes an insertion step of inserting the inner bag assembly (6) into the stainless steel beverage storage container (2), the male screw portion (31s) of the fixing member (3) and the base portion ( 21) an engagement step of engaging the female thread portion (21s), and a positioning step of positioning the second portion (68) of the inner bag assembly (6) with respect to the fixing member (3). It comprises.

  In the fixing method, the inner bag assembly (6) may include a down tube (70). Moreover, the side wall (71) of the said down tube (70) may be provided with the drink passage part (711) through which a drink can pass.

  In the fixing method, a plurality of protrusions (61c) may be formed on the outer surface of the inner bag body (61).

  In the fixing method, the fixing member (3) may be made of metal. The second portion (68) of the inner bag assembly (6) positioned by the fixing member (3) may be made of resin.

  In the fixing method, the fixing member (3A) may be made of resin. The second portion (68) of the inner bag assembly (6) positioned by the fixing member (3A) may be made of resin.

  In the fixing method, the first portion (63) of the inner bag assembly (6) includes a first valve body (65a) and a first valve seat portion (65b) constituting the beverage take-off valve (V1). May be included. The fixing member (3) may include a second valve seat portion (35b) that constitutes a part of the gas valve V2.

  In the fixing method, the stainless steel beverage storage container (2) includes a resin first biasing member (67A) for maintaining the beverage take-off valve (V1) in a closed state, and a gas valve ( At least one of resin-made second urging members (69A; 69B; 69C) for maintaining V2) in a closed state may be arranged.

  In the fixing method, the second urging member (69A; 69B; 69C) is disposed inside the stainless steel beverage storage container (2), and the second urging member (69A; 69B; 69C). May be integrated with the annular member (C2) of the inner bag assembly (6) or the second portion (68) of the inner bag assembly (6).

  In the fixing method, the second portion (68) of the inner bag assembly (6) or the fixing member (3) is an inward projecting portion (disposed at a lower end portion of the base portion (21)). It may be arranged so as to contact the upper surface of 22).

  In the fixing method, the fixing member (3) may include a first engaging portion (33) that engages with the dispensing head (8).

  In the fixing method, the stainless steel beverage storage container (2) may be a beverage storage container in which a stainless steel fitting (10) has been mounted in the past.

  The beverage take-out method in some embodiments is a beverage take-out method for taking a beverage out of a double container assembled by the fixing method described in any of the above paragraphs. The beverage take-out method includes an attaching step of attaching a dispense head (8) to the fixing member (3), and the stainless steel beverage storage container (2) and the inner bag via the dispense head (8). A gas supply step for supplying gas to the first space (SP1) between the body (61), the beverage take-off valve (V1) of the inner bag assembly (6), and the dispense head (8). And a beverage take-out step for taking out the beverage from the inner bag main body (61). The mounting step includes a first sealing step in which a first sealing member (S1) mounted on the main body (80) of the dispensing head (8) is in close contact with the fixing member (3).

  The inner bag assembly (6) in some embodiments is an inner bag assembly (6) that is attached to a stainless steel beverage storage container (2) using the securing method described in any of the paragraphs above. .

  The inner bag assembly (6) in some embodiments is an inner bag assembly (6) disposed within a stainless steel beverage storage container (2). The inner bag assembly (6) includes a flexible inner bag body (61), a first portion (63) to which the inner bag body (61) is attached and having a beverage take-off valve (V1), A down tube (70) attached to the first portion (63) and disposed in the inner bag main body (61), and a fixing to be attached to the cap part (21) of the stainless steel beverage storage container (2). And a second portion (68) positioned by the member (3).

  The present invention provides a technique for facilitating the management of a stainless steel beverage storage container when the stainless steel beverage storage container is collected and reused, and for preventing the taste, taste, etc. of the beverage from being deteriorated. Can do.

FIG. 1 is a cross-sectional view schematically showing a conventional beer storage container. FIG. 2 is a schematic cross-sectional view schematically showing a state after the inner bag assembly is fixed to the stainless steel beverage storage container. FIG. 3 is a flowchart showing an example of a fixing method for fixing the inner bag assembly to the stainless steel beverage storage container via the fixing member in the first embodiment. FIG. 4 is a schematic cross-sectional view schematically showing that one step of the fixing method for fixing the inner bag assembly to the stainless steel beverage storage container via the fixing member in the first embodiment is executed. . FIG. 5 is a schematic cross-sectional view schematically showing that one step of the fixing method for fixing the inner bag assembly to the stainless steel beverage storage container via the fixing member in the first embodiment is performed. . FIG. 6 is a schematic cross-sectional view schematically showing a state in which one step of the fixing method for fixing the inner bag assembly to the stainless steel beverage storage container via the fixing member in the first embodiment is performed. . FIG. 7 is a schematic side view schematically showing an example of a down tube. FIG. 8 is a schematic side view schematically showing an example of the inner bag body. FIG. 9 is a diagram for explaining an example of the fixing member. FIG. 10 is a diagram for explaining an example of the fixing member. FIG. 11 is a view for explaining an example of the inner bag assembly. FIG. 12 is a flowchart illustrating an example of a beverage filling method and a beverage take-out method according to the first embodiment. FIG. 13: is a schematic sectional drawing which shows typically a mode that one process of the drink taking-out method in 1st Embodiment is performed. FIG. 14 is a schematic cross-sectional view schematically showing a state in which one step of the beverage take-out method in the first embodiment is performed. FIG. 15 is a schematic cross-sectional view schematically showing a state after the inner bag assembly is fixed to the stainless steel beverage storage container. FIG. 16: is a flowchart which shows an example of the fixing method which fixes an inner bag assembly to a stainless steel drink storage container via the fixing member in 2nd Embodiment, a drink filling method, and a drink taking-out method. FIG. 17: is a schematic sectional drawing which shows typically a process of the fixing method which fixes an inner bag assembly to the stainless steel drink storage container via the fixing member in 2nd Embodiment being performed. . FIG. 18 is a schematic cross-sectional view schematically showing that one step of the fixing method for fixing the inner bag assembly to the stainless steel beverage storage container via the fixing member in the second embodiment is performed. . FIG. 19 is a schematic cross-sectional view schematically showing that one step of the fixing method for fixing the inner bag assembly to the stainless steel beverage storage container via the fixing member in the second embodiment is being executed. . FIG. 20 is a schematic cross-sectional view schematically showing that one step of the fixing method for fixing the inner bag assembly to the stainless steel beverage storage container via the fixing member in the second embodiment is being executed. . FIG. 21 is a schematic cross-sectional view schematically showing an example of a state after the dispensing head is attached to the fixing member. FIG. 22 is a schematic cross-sectional view schematically showing a state in which the first urging member in the modification is arranged in the first cylindrical body. FIG. 23 is a diagram schematically illustrating a second urging member in the first modification. FIG. 24 is a diagram schematically illustrating an arrangement relationship between the second urging member and the second portion of the inner bag assembly. FIG. 25 is a diagram schematically illustrating a second urging member in the second modified example. FIG. 26 is a diagram schematically illustrating a second urging member in the third modification. FIG. 27 is a diagram schematically illustrating a second urging member in the fourth modified example.

  In the present invention, after remodeling by inserting the inner bag assembly into an existing stainless steel beverage storage container, the beverage is filled into the remodeled container and the beverage is poured out from the remodeled container. The existing filling device and the dispensing device (dispensing head) can be used as they are, and the filling step and the dispensing step can be performed in the same manner as the existing steps.

  Hereinafter, a fixing method for fixing the inner bag assembly 6 to the stainless steel beverage storage container 2 via the fixing member 3, a beverage taking-out method, and the inner bag assembly 6 will be described with reference to the accompanying drawings. In the following description, members and parts having the same function are denoted by the same reference numerals, and repeated descriptions of members and parts having the same reference numerals are omitted. In the following description, “stainless steel beverage storage container” means a stainless steel container capable of storing beer. In addition, it is not excluded that beverages other than beer (for example, sparkling liquor other than beer) are stored in the stainless steel beverage storage container.

(State after the inner bag assembly 6 is fixed to the stainless steel beverage storage container 2)
With reference to FIG. 2, an example of the state after execution of the fixing method in the embodiment (fixing method for fixing the inner bag assembly 6 to the stainless steel beverage storage container 2 via the fixing member 3) will be described. . FIG. 2 is a schematic cross-sectional view schematically showing a state after the inner bag assembly 6 is fixed to the stainless steel beverage storage container 2.

  In the example shown in FIG. 2, the inner bag assembly 6 is fixed to the stainless steel beverage storage container 2 via the fixing member 3.

  The stainless steel beverage storage container 2 includes a container body 20 and a base part 21. The base portion 21 is provided with a female screw portion 21s.

  The fixing member 3 is a member that is attached to the base portion 21 and fixes the inner bag assembly 6 to the stainless steel beverage storage container 2. The fixing member 3 has a male screw portion 31 s that is screwed into the female screw portion 21 s of the stainless steel beverage storage container 2.

  In the embodiment, the inner bag assembly 6 is fixed to the stainless steel beverage storage container 2 by attaching the fixing member 3 to the female screw portion 21 s of the stainless steel beverage storage container 2. The fitting 10 is attached to the female thread portion 21s of the existing stainless steel beverage storage container 2. In the embodiment, the fixing member 3 is attached to the female screw portion 21s in place of the fitting 10, thereby remodeling the conventional stainless steel beverage storage container into a double container in which the inner bag assembly 6 is built.

  In the embodiment, the stainless steel beverage storage container 2 is repeatedly reused, and the attachment of the fixing member 3 to the female screw portion 21s and the removal of the fixing member 3 from the female screw portion 21s are repeatedly executed. In this case, a large load is applied to the female screw portion 21s and the male screw portion 31s. In the embodiment, since the female screw portion 21 s is formed of highly durable stainless steel, it can withstand a large load. Further, when the male screw portion 31s of the fixing member 3 is made of a highly durable metal such as stainless steel, it can withstand a large load. On the other hand, when the fixing member 3 is made of resin, the male screw portion 31s is likely to deteriorate. Therefore, in the embodiment, when the resin fixing member 3 is employed, the fixing member 3 is, for example, a replacement part (disposable part) that is used once.

(Fixing method for fixing the inner bag assembly 6 to the stainless steel beverage storage container 2 via the fixing member 3)
With reference to FIG. 2 thru | or FIG. 11, the fixing method (fixing method which fixes the inner bag assembly 6 to the stainless steel drink storage container 2 via the fixing member 3) in 1st Embodiment is demonstrated. FIG. 3 is a flowchart illustrating an example of the fixing method according to the first embodiment. 4 to 6 are schematic cross-sectional views schematically showing how the steps of the fixing method according to the first embodiment are performed. FIG. 7 is a schematic side view schematically showing an example of the down tube 70 in the embodiment. FIG. 8 is a schematic side view schematically showing an example of the inner bag body 61 in the embodiment. FIG. 9 is a diagram (schematic cross-sectional view) for explaining an example of the fixing member 3 in the embodiment. FIG. 10 is a diagram (schematic cross-sectional view) for explaining an example of the fixing member 3 in the embodiment. Drawing 11 is a figure (schematic sectional view) for explaining an example of inner bag assembly 6 in an embodiment.

  As shown in FIG. 4, in the first step ST1, a stainless steel beverage storage container 2, an inner bag assembly 6, and a fixing member 3 are prepared.

  The stainless steel beverage storage container 2 includes a container body 20 and a base part 21 having a female screw part 21s at an upper end part. The base part 21 is joined to the container body 20 by welding, for example. The stainless steel beverage storage container 2 is a container collected from a beverage provider such as a restaurant.

  When the fitting 10 (see FIG. 1) is attached to the recovered stainless steel beverage storage container 2, the fitting 10 is attached to the stainless steel beverage storage container 2 before the first step ST1. Removed from. Therefore, the stainless steel beverage storage container 2 prepared in the first step ST1 may be a beverage storage container in which the stainless steel fitting 10 has been mounted in the past. In the present specification, the fitting 10 means a member that can support the beverage take-out tube and can be attached to the base part 21. The fitting 10 is a well (meaning “well”) type fitting.

  Alternatively, when the fixed member 3 and the used inner bag assembly 6 are attached to the recovered stainless steel beverage storage container 2, the fixed member 3 and the use are used before the first step ST1. The finished inner bag assembly 6 is removed from the stainless steel beverage storage container 2.

  The inner bag assembly 6 prepared in the first step ST1 includes a flexible inner bag body 61, a first portion 63 having a beverage take-off valve V1, and a second portion 68 positioned by the fixing member 3. It is an assembly including as a component.

  The fixing member 3 includes a positioning portion 30 for positioning the second portion 68 of the inner bag assembly 6 and a male screw portion 31s.

  The fixing member 3 is prepared by processing (more specifically, cutting) the fitting 10 (see FIG. 1) attached to the collected stainless steel beverage storage container 2. Alternatively, it may be performed by reusing the fixing member 3 attached to the recovered stainless steel beverage storage container 2, or may be performed by manufacturing a new fixing member 3. Good. A part of the fixing member 3 may be a reuse part, and another part of the fixing member 3 may be a new part.

  In the example shown in FIG. 4, the fixing member 3 and the stainless steel beverage storage container 2 are separate bodies, and the fixing member 3 and the inner bag assembly 6 are separate bodies.

  As shown in FIG. 5, in the second step ST <b> 2, the inner bag assembly 6 is inserted into the stainless steel beverage storage container 2. The second step ST2 is an insertion process. In the second step ST <b> 2, the inner bag body 61 is inserted into the container body 20 through the base part 21.

  In the third step ST3, the male screw part 31s (see FIG. 6) of the fixing member 3 and the female screw part 21s of the base part 21 are engaged with each other. The engagement is performed by screwing the male screw portion 31s into the female screw portion 21s. The third step ST3 is an engagement process (or a screwing process).

  In the fourth step ST4, the second portion 68 of the inner bag assembly 6 is positioned with respect to the fixing member 3. The fourth step ST4 is a positioning process. In the example illustrated in FIG. 6, the positioning portion 30 of the fixing member 3 presses the second portion 68 of the inner bag assembly 6, whereby the second portion 68 of the inner bag assembly 6 is pressed against the fixing member 3. Positioned.

  Alternatively, the fourth step ST4 may be performed by coupling (for example, engaging) the fixing member 3 to the second portion 68 of the inner bag assembly 6. The second portion 68 of the inner bag assembly 6 is positioned with respect to the fixing member 3 by the coupling of the second portion 68 and the fixing member 3. When the fixing member 3 is coupled to the second portion 68 of the inner bag assembly 6, the fourth step ST4 is preferably executed before the second step ST2 and the third step ST3.

  Through the above steps, the stainless steel beverage storage container 2 is remodeled into a double container in which the inner bag assembly 6 is built.

(Down tube 70)
As shown in FIG. 6, the inner bag assembly 6 may include a down tube 70. The down tube 70 is a member that extends downward from the first portion 63 of the inner bag assembly 6 and supplies the beverage in the inner bag body 61 toward the beverage take-off valve V1. The down tube 70 is made of, for example, resin, and the down tube 70 is, for example, a flexible tube. In the example illustrated in FIG. 6, the down tube 70 is attached to the first portion 63 of the inner bag assembly 6. The down tube 70 may be fixed to the first portion 63 by welding, or may be fixed to the first portion 63 by press fitting.

  In the embodiment, by supplying gas (for example, air) between the stainless steel beverage storage container 2 and the inner bag main body 61 to contract the inner bag main body 61, a beverage (for example, beer) ) Is taken out. For this reason, in embodiment, the down tube 70 is not necessarily required. However, when the down tube 70 is not provided, by supplying gas (for example, air) between the stainless steel beverage storage container 2 and the inner bag body 61, the inner bag body 61 has an unintended shape. There is a possibility that the space between the lower space and the upper space of the inner bag main body 61 is not communicated due to contraction. In this case, the beverage in the lower space of the inner bag body 61 cannot be taken out.

  Therefore, in the example illustrated in FIG. 6, the down tube 70 is disposed in the inner bag body 61. In this case, even when the inner bag body 61 is contracted into an unintended shape, the beverage can be taken out from the inner bag body 61 to the outside of the inner bag body 61 through the down tube 70.

  A specific example of the configuration of the down tube 70 will be described with reference to FIG. FIG. 7 is a schematic side view schematically showing an example of the down tube 70 in the embodiment.

  In the example illustrated in FIGS. 7A to 7C, a beverage passage portion 711 through which a beverage can pass is provided on the side wall 71 of the down tube 70. Therefore, even if the inner bag main body 61 is contracted in any shape, the inner bag main body 61 outside the inner bag main body 61 through the beverage passage portion 711 of the down tube 70 and the space in the down tube 70. Beverages can be taken out.

  On the other hand, the case where the hole which can pass a drink is provided only in the bottom part of the down tube 70 is assumed. In this case, if the inner bag main body 61 contracts into an unintended shape and the lower space and the upper space of the inner bag main body 61 are in a non-communication state, there is a possibility that the beverage cannot be taken out from the upper space. . On the other hand, when the beverage passage part 711 through which the beverage can pass is provided on the side wall 71 of the down tube 70, the beverage cannot be taken out from the upper space of the inner bag body 61. In the embodiment, it is preferable that the beverage passage portion 711 is provided on the side wall 71 of the down tube 70 and the beverage passage hole 721 is provided in the bottom portion 72 of the down tube 70.

  In the example shown in FIG. 7A, the beverage passage part 711 includes a slit 711 a provided on the side wall 71. The slit 711 a extends along the longitudinal direction of the down tube 70. When the side wall 71 is provided with the slit 711 a, the beverage passage part 711 is continuously provided along the longitudinal direction of the down tube 70. Moreover, the process of forming the slit 711a in the down tube 70 can be easily performed. Therefore, by forming the slit 711a in the down tube 70, the down tube 70 with the beverage passage part 711 can be manufactured at low cost.

  In the example illustrated in FIG. 7B, the beverage passage portion 711 includes a plurality of beverage passage holes 711 b provided in the side wall 71. When a plurality of beverage passage holes 711 b are provided in the side wall 71, the beverage passage portions 711 are discretely provided along the longitudinal direction of the down tube 70.

  In the example shown in FIG. 7C, the down tube 70 includes a spiral tube 70c (in other words, a strip formed by a spiral or a wire constituted by a wire disposed by a spiral). . In the example illustrated in FIG. 7C, the gap 711 c between the strips constituting the spiral tube 70 c or the gap between the wire rods constituting the spiral tube corresponds to the beverage passing part 711 provided on the side wall 71. .

  When the down tube 70 includes the spiral tube 70c, the continuous beverage passage part 711 is provided in the down tube 70. Further, the process of forming the spiral tube 70c is an easily executable process. For this reason, it is possible to manufacture the down tube 70 with the beverage passage part 711 inexpensively by forming the spiral tube 70c.

(Inner bag body 61)
The inner bag body 61 in the embodiment is configured by a bag having gas barrier properties and capable of safely storing a beverage. In the embodiment, since the inner bag main body 61 is protected and shielded from light by the stainless steel beverage storage container 2, the degree of freedom in selecting the material of the inner bag main body 61 is high. As a material of the inner bag main body 61, for example, polyethylene can be used. The inner bag body 61 is formed with an opening 61a for filling or taking out a beverage.

  As shown in FIG. 8, on the outer surface of the inner bag body 61, in order to promote the gas flow (for example, air) in the vertical direction in the space between the inner bag body 61 and the stainless steel beverage storage container 2. In addition, a plurality of protrusions 61c (in other words, a plurality of linear protrusions) may be formed. The protrusion 61 c may be formed by fusing part of the inner surface of the inner bag body 61 to the other part of the inner surface of the inner bag body 61. The plurality of protrusions 61c are formed, for example, in the lower portion of the inner bag body 61.

(Fixing member 3)
An example of the fixing member 3 will be described with reference to FIGS. 9 and 10. The fixing member 3 is made of metal such as stainless steel, for example. The fixing member 3 is an annular body C1. The fixing member 3 has a space SP defined by the inner peripheral surface of the annular body C1, and a filling nozzle for filling a beverage or a plunger member of a dispensing head can pass through the space SP.

  The fixing member 3 includes a male screw portion 31 s that is screwed into the female screw portion 21 s of the base portion 21. The male screw portion 31s is formed on the outer peripheral surface of the annular body C1.

  The fixing member 3 includes a positioning portion 30 that positions the second portion 68 of the inner bag assembly 6. In the example illustrated in FIG. 9, the positioning unit 30 is the bottom 30 b of the fixing member 3, and the bottom of the fixing member 3 presses the second portion 68 (more specifically, the upper surface 68 u of the second portion 68). Thus, the second portion 68 is positioned. More specifically, the second portion 68 is positioned by sandwiching the second portion 68 between the bottom portion 30b of the fixing member 3 and the inward protruding portion 22 of the base portion 21.

  In the example illustrated in FIG. 9, the fixing member 3 includes a first engagement portion 33 for attaching the dispensing head 8 (see FIG. 13). The first engagement portion 33 may be, for example, a bayonet type engagement portion. In other words, by pushing the dispense head 8 toward the fixed member 3 and then rotating the dispense head 8 relative to the fixed member 3, the second engaging portion 83 of the dispense head 8 and the fixed member 3 You may be comprised so that the 1st engaging part 33 may mutually engage.

  In the example illustrated in FIG. 9, the first engaging portion 33 protrudes inward from the wall portion 32 (more specifically, the annular wall) of the fixing member 3. Although FIG. 9 illustrates an example in which the fixing member 3 includes two first engaging portions 33, the number of the first engaging portions 33 included in the fixing member 3 is arbitrary. In addition, when the fixing member 3 includes a plurality of first engaging portions 33, the plurality of first engaging portions 33 may be arranged at equal intervals along the circumferential direction of the fixing member 3. preferable.

  In the example illustrated in FIG. 9, the fixing member 3 includes an annular projecting portion 35 that projects from the wall portion 32 (more specifically, an annular wall) toward the radially inward direction. The annular projecting portion 35 functions as a second valve seat portion 35b with which the second valve body 66a of the inner bag assembly 6 (in other words, the valve body of the gas valve V2) can contact.

  In the example illustrated in FIG. 9, the outer peripheral portion of the fixing member 3 functions as the male screw portion 31 s, and the inner peripheral portion of the fixing member 3 functions as the first engagement portion 33 and / or the second valve seat portion 35 b. The bottom portion of the fixing member 3 functions as a positioning portion for positioning the inner bag assembly 6. As described above, in the example illustrated in FIG. 9, the fixing member 3 has a plurality of different functions.

  As shown in FIG. 10, the fixing member 3 may be formed by processing (for example, cutting) the fitting 10. In this case, the cost required for manufacturing the fixing member 3 is reduced.

(Inner bag assembly 6)
An example of the inner bag assembly 6 will be described with reference to FIG. The inner bag assembly 6 includes a flexible inner bag body 61, a first portion 63, and a second portion 68.

  The first portion 63 has a beverage take-off valve V1 constituted by a first valve body 65a and a first valve seat portion 65b, and a first tubular body 64. The first valve body 65 a is disposed inside the first tubular body 64.

  In the example illustrated in FIG. 11, the first tubular body 64 includes a down tube attachment portion 641 a to which the down tube 70 is attached and an inner bag body attachment portion 643 a to which the inner bag body 61 is attached. As shown in FIG. 11, the first tubular body 64 may have a second valve body attachment portion 645a to which the second valve body 66a is attached.

  In the example illustrated in FIG. 11, the lower portion 641 of the first cylindrical body 64 corresponds to the down tube attachment portion 641 b. More specifically, the upper end portion 70 u of the down tube 70 is fixed to the outer peripheral surface of the lower portion 641. A through hole 641h is formed in the bottom 64b of the first cylindrical body 64, and the through hole 641h communicates with the internal space of the down tube 70.

  In the example illustrated in FIG. 11, an annular protrusion 643 (more specifically, an annular collar) provided on the outer surface of the first tubular body 64 corresponds to the inner bag main body attaching portion 643 a. The inner bag body 61 is fixed (for example, fused) to the upper surface of the annular protrusion 643, for example.

  In the example described in FIG. 11, the upper end portion 645 of the first tubular body 64 corresponds to the second valve body attaching portion 645a. The second valve body 66 a is fixed to the upper end portion 645 of the first tubular body 64.

  In the example illustrated in FIG. 11, the first urging member 67 is disposed inside the first cylindrical body 64. The first valve body 65a is urged upward by the first urging member 67, and the closed state of the beverage take-off valve V1 is maintained by the urging force of the first urging member 67. The state where the first valve body 65a is in contact with the first valve seat portion 65b corresponds to the closed state of the beverage take-off valve V1.

  In the example shown in FIG. 11, the first valve seat portion 65b and the second valve body 66a are formed by one member (more specifically, an annular member C2). More specifically, the upper end portion of the annular member C2 corresponds to the second valve body 66a, and the lower end portion of the annular member C corresponds to the first valve seat portion 65b. Note that a flange portion F is formed at the upper end portion of the annular member C2 (in other words, the second valve body 66a) so as to protrude outward from the upper end portion 645 of the first tubular body 64.

  The lower end of the first urging member 67 is supported by the bottom 64b of the first cylindrical body 64, and the upper end of the first urging member 67 presses the lower surface of the first valve body 65a upward. The first urging member 67 may be a metal coil spring or may be made of an elastically deformable resin. In the example shown in FIG. 11, after the first urging member 67 and the first valve body 65a are arranged inside the first tubular body 64, the annular member C2 (in other words, the first valve seat portion 65b and (Or the second valve body 66a) is fixed to the upper end 645 of the first tubular body 64. Thus, the first portion 63 of the inner bag assembly 6 is assembled.

  The first valve body 65a is urged upward by the internal pressure in the inner bag body 61. For this reason, the urging force of the first urging member 67 may be small. Alternatively, the first biasing member 67 may be omitted.

  The 2nd part 68 is a part positioned by the fixing member 3 with which the base part 21 of the stainless steel drink storage container 2 is mounted | worn. In the example illustrated in FIG. 11, the second portion 68 is disposed so as to face the outer surface of the first portion 63 (more specifically, the first tubular body 64). The second portion 68 is an annular body C3.

  In the example illustrated in FIG. 11, the second portion 68 (annular body C <b> 3) includes a third engagement portion 681. The third engaging portion 681 can be engaged with the inward protruding portion 22 disposed at the lower end portion of the base portion 21. The third engagement portion 681 is, for example, an annular engagement portion.

  In the example illustrated in FIG. 11, the lower portion of the second portion 68 functions as an engaging portion that engages with the inward protruding portion 22, and the upper surface 68 u of the second portion 68 is pressed by the fixing member 3. It functions as a pressed surface. Therefore, the second portion 68 is positioned and fixed in the base portion 21 by being sandwiched between the inward protruding portion 22 and the fixing member 3.

  An annular protrusion 684 that protrudes inwardly in the radial direction of the second portion 68 is provided on the lower portion of the second portion 68. The inner surface of the annular protrusion 684 is disposed to face the outer surface of the first portion 63 (more specifically, the first tubular body 64), and guides the first portion 63 in the vertical direction. Function as. Further, the upper surface of the annular protrusion 684 functions as a support surface that supports the second urging member 69.

  The second urging member 69 is a member that urges the second valve body 66a upward. In the example shown in FIG. 11, the second valve body 66a and the first cylindrical body 64 are fixed. Therefore, the second urging member 69 urges the second valve body 66a and the first cylindrical body 64 upward.

  In the example illustrated in FIG. 11, the second urging member 69 is disposed between the annular protrusion 684 of the second portion 68 and the flange portion F of the second valve body 66a.

  The closed state of the gas valve V2 is maintained by the urging force of the second urging member 69. The gas valve V2 is a valve constituted by a second valve body 66a and a second valve seat portion 35b (see FIG. 9), and the second valve body 66a contacts the second valve seat portion 35b. This state corresponds to the closed state of the gas valve V2.

  The second urging member 69 may be a metal coil spring or may be made of an elastically deformable resin. In the example illustrated in FIG. 11, after the second portion 68 and the second urging member 69 are arranged around the first portion 63 (more specifically, the first cylindrical body 64), the annular member C <b> 2 ( In other words, the first valve seat portion 65b and / or the second valve body 66a) is fixed to the upper end portion 645 of the first tubular body 64.

  Regarding the material of the inner bag assembly 6, the first cylindrical body 64 is preferably made of resin. The first valve body 65a and the second valve body 66a (in other words, the annular member C2) are preferably made of resin. The second portion 68 (in other words, the annular body C3) is preferably made of resin.

  The fixing member 3 shown in FIG. 9 is made of metal such as stainless steel, and the second portion 68 (second portion 68 of the inner bag assembly 6) positioned by the fixing member 3 is made of resin. Suppose. In this case, the fixing member 3 can be used as a reused part, and the second part 68 can be used as a replacement part (disposable part) that can be used once. When the fixing member 3 is made of stainless steel, the fixing member 3 can be used repeatedly for a long period (for example, 10 years or more).

(Beverage filling method and beverage take-out method in the first embodiment)
With reference to FIG. 12 thru | or FIG. 14, an example of the drink filling method in 1st Embodiment and a drink taking-out method is demonstrated. FIG. 12 is a flowchart illustrating an example of a beverage filling method and a beverage take-out method according to the first embodiment. FIG. 13 and FIG. 14 are schematic cross-sectional views schematically showing how the steps of the beverage take-out method in the first embodiment are performed.

  The beverage filling method according to the first embodiment (fifth step ST5 in FIG. 12) is performed after the execution of the fixing method for fixing the inner bag assembly 6 to the stainless steel beverage storage container 2 via the fixing member 3 (in other words, For example, it is executed after the execution of the first step ST1 to the fourth step ST4.

  When filling the inner bag body 61 with a beverage, first, a filling nozzle is inserted into the base part 21. By inserting the filling nozzle, the beverage take-off valve V1 is opened and the gas valve V2 is opened. Secondly, the beverage is supplied from the filling nozzle into the inner bag body 61 through the beverage take-off valve V1, and the gas valve V2 from the space between the stainless steel beverage storage container 2 and the inner bag body 61. The air is discharged through In this way, the inner bag body 61 is filled with the beverage.

  In addition, in 1st Embodiment, the shape of the nozzle | cap | die part 21 is a shape similar to the shape of the nozzle | cap | die part of the existing stainless steel drink storage container, and the shape of the fixing member 3 is the existing fitting 10 ( (See FIG. 1). Therefore, it is possible to fill the inner bag body 61 in the stainless steel beverage storage container 2 with a beverage using an existing beverage filling system.

  Next, a beverage takeout method will be described.

  As shown in FIGS. 12 and 13, in the sixth step ST <b> 6, the dispensing head 8 is attached to the fixing member 3 attached to the base 21 of the stainless steel beverage storage container 2. The sixth step ST6 is performed, for example, by engaging the second engagement portion 83 provided in the main body portion 80 of the dispense head 8 with the first engagement portion 33 of the fixing member 3.

  In the example illustrated in FIG. 13, the dispensing head 8 includes a main body portion 80 and a plunger member 85 that is slidable relative to the main body portion 80.

  The lower end portion of the main body portion 80 is provided with the second engaging portion 83 described above, and the lower end portion of the main body portion 80 holds a first seal member S1 (annular seal member). When the dispensing head 8 is attached to the fixed member 3, the first seal member S <b> 1 seals between the main body 80 and the fixed member 3. The main body 80 is provided with a gas introduction hole 80h for introducing a gas such as air.

  A beverage flow path P <b> 1 is provided inside the plunger member 85. A check valve V <b> 3 may be disposed inside the plunger member 85.

  On the outer surface of the plunger member 85, a second seal member S2 (annular seal member) that seals between the plunger member 85 and the first portion 63 (more specifically, the annular member C2) of the inner bag assembly 6 is provided. ) Is arranged. Moreover, the lower end part of the plunger member 85 has the press part 851 which presses the 1st valve body 65a.

  A gas flow path P <b> 2 is provided between the plunger member 85 and the main body 80. When the plunger member 85 is in the upper position (the position shown in FIG. 13), the gas flow path P2 and the gas introduction hole 80h are not in communication. When the plunger member 85 is in the upper position, the pressing portion 851 is separated from the first valve body 65a. When the plunger member 85 is in the upper position, the second seal member S2 is separated from the annular member C2.

  In the seventh step ST7, the beverage take-off valve V1 is opened. The seventh step ST7 is executed, for example, by sliding the plunger member 85 with respect to the main body 80 from the upper position toward the lower position. When the plunger member 85 slides toward the lower position, the pressing portion 851 of the plunger member 85 presses the first valve body 65a. As a result, the first valve body 65a is separated from the first valve seat portion 65b, and the beverage take-off valve V1 is opened.

  As shown in FIG. 14, when the plunger member 85 slides toward the lower position, the second seal member S2 comes into contact with the annular member C2. Thus, the beverage flow path P1 of the plunger member 85 and the gas flow path P2 between the plunger member 85 and the main body 80 are isolated from each other. As shown in FIG. 14, when the plunger member 85 slides toward the lower position, the gas valve V2 may be opened. In the example described in FIG. 14, the second seal member S2 functions as a pressing portion that presses the valve body (second valve body 66a) of the gas valve V2.

  As shown in FIG. 14, when the plunger member 85 slides toward the lower position, the gas introduction hole 80h and the gas flow path P2 communicate with each other.

  In the eighth step ST8, gas (for example, air) is supplied to the first space SP1 between the stainless steel beverage storage container 2 and the inner bag body 61. Gas supply in the eighth step ST8 is performed via the dispense head 8. The eighth step ST8 is a gas supply process.

  More specifically, in the eighth step ST8, a gas supplied from a gas supply source (for example, an air pump) is introduced into the gas introduction hole 80h. The gas introduced into the gas introduction hole 80h is supplied to the first space SP1 between the stainless steel beverage storage container 2 and the inner bag body 61 through the gas flow path P2. The gas supplied to the first space SP1 presses the inner bag body 61 so that the inner bag body 61 contracts.

  In the example shown in FIG. 14, the gas supply step is performed in a state where the second seal member S2 attached to the plunger member 85 is in close contact with the inner bag assembly 6 (more specifically, the annular member C2). It includes supplying gas to the first space SP1. In the gas supply step, gas is supplied from the gas introduction hole 80h to the second space SP2 separated by the first seal member S1 and the second seal member S2, and further, gas is supplied from the second space SP2 to the first space SP1. Is supplied.

  In the ninth step ST9, the beverage is taken out from the inner bag body 61. Ninth step ST9 is a beverage take-out process. In the beverage take-out process, the beverage is taken out via the beverage take-out valve V1 of the inner bag assembly 6 and the dispense head 8.

  The ninth step ST9 will be described in more detail. By executing the eighth step ST8, the inner bag body 61 is pressed inward. For this reason, the beverage in the inner bag body 61 is directed to the beverage take-off valve V1 through the through hole 641h of the first tubular body 64 and the internal space of the first tubular body 64. In the seventh step ST7, since the beverage take-off valve V1 is opened, the beverage in the internal space of the first tubular body 64 is passed through the beverage take-off valve V1 and the beverage flow path P1 of the plunger member 85. It is taken out of the dispensing head 8.

  After the beverage in the inner bag body 61 has substantially disappeared, the beverage take-off valve V1 is closed in the tenth step ST10. The tenth step ST10 is executed by, for example, sliding the plunger member 85 relative to the main body 80 from the lower position toward the upper position. When the plunger member 85 slides toward the upper position, the pressing portion 851 of the plunger member 85 is separated from the first valve body 65a. The first valve body 65 a is urged upward by the internal pressure of the first urging member 67 and / or the inner bag body 61. For this reason, when the pressing portion 851 of the plunger member 85 is separated from the first valve body 65a, the first valve body 65a moves toward the first valve seat portion 65b. Thus, the beverage take-off valve V1 is closed. Thereafter, the dispensing head 8 is removed from the fixing member 3. The stainless steel beverage storage container 2 from which the dispense head 8 has been removed is collected for the next beverage filling.

  In the beverage take-out method according to the first embodiment, the beverage is taken out from the inner bag body 61 by supplying gas to the first space SP1 between the stainless steel beverage storage container 2 and the inner bag body 61. Therefore, the beverage in the inner bag body 61 does not come into contact with the supply gas (for example, air) supplied via the dispense head 8. For this reason, the taste of a drink, a touch, etc. do not deteriorate because a drink contacts supply gas. Moreover, when the beverage is an effervescent beverage such as beer, the foam feel does not deteriorate. Therefore, even after a long period of time has elapsed (for example, after the elapse of 4 days or more) since the start of taking out of the beverage from the inner bag body 61 in the stainless steel beverage storage container 2, the beverage in the inner bag body 61 Quality is maintained at high quality.

Furthermore, in the beverage take-out method in the first embodiment, air can be used as the gas supplied to the first space SP1 between the stainless steel beverage storage container 2 and the inner bag body 61. For this reason, it is not necessary to prepare a carbon dioxide gas cylinder like the conventional drink taking-out method. When preparing a carbon dioxide cylinder, it is necessary to prepare a plurality of carbon dioxide cylinders including a spare cylinder. Further, it is necessary to monitor the remaining amount of CO _{2 in} the carbon dioxide gas cylinder, carry in and replace the carbon dioxide gas cylinder, and the like. In addition, a space for placing a plurality of carbon dioxide cylinders is required. On the other hand, in the beverage take-out method in the first embodiment, a small air pump need only be prepared as a gas supply source instead of a plurality of carbon dioxide cylinders. Therefore, it is possible to take out the beverage from the inner bag body 61 in the stainless steel beverage storage container 2 even in a small shop where space is limited or outdoors. Since the stainless steel beverage storage container 2 has extremely high durability and corrosion resistance and is excellent in light shielding properties, the stainless steel beverage storage container 2 may be stored outdoors. When the stainless steel beverage storage container 2 is stored outdoors, it is preferable that a closing member such as a cap is disposed in the base part 21.

  The product life of the stainless steel beverage storage container 2 is 10 years or more, 20 years or more, or 30 years or more. Therefore, in the first embodiment, the stainless steel beverage storage container 2 can be repeatedly reused for 10 years or more, 20 years or more, or 30 years or more. More specifically, after execution of the above-mentioned tenth step ST10, the fixing member 3 and the inner bag assembly 6 are removed from the stainless steel beverage storage container 2 in an eleventh step ST11. The removal of the fixing member 3 is executed by releasing the screwing between the male screw portion 31s of the fixing member 3 and the female screw portion 21s of the base portion 21. The inner bag assembly 6 is removed by pulling the inner bag assembly 6 out of the stainless steel beverage storage container 2. Thereafter, the first step ST1 to the fourth step ST4 and the fifth step to the tenth step ST10 are executed again.

  The stainless steel beverage storage container 2 prepared in the first step ST1 after the second time is a stainless steel beverage storage container collected after the execution of the tenth step ST10. On the other hand, the inner bag assembly 6 prepared in the first step ST1 after the second time is a new inner bag assembly. The fixing member 3 prepared in the first step ST1 after the second time may be a fixing member collected after the execution of the tenth step ST10, or may be a new fixing member. In the first embodiment, since the stainless steel beverage storage container 2 (or the stainless steel beverage storage container 2 and the fixing member 3) is repeatedly reused, it is possible to realize an environmentally friendly beverage providing method. It is.

  Moreover, in 1st Embodiment, a drink is filled in the new inner bag main body 61, and a drink does not contact directly the stainless steel drink storage container 2 to be reused. For this reason, the safety | security of a drink is ensured reliably. In addition, since the beverage does not directly contact the reused stainless steel beverage storage container 2, the organic matter (dirt) is prevented from adhering to the inside of the stainless steel beverage storage container 2. From the above, it becomes easy to manage the stainless steel beverage storage container when the stainless steel beverage storage container 2 is collected and reused.

  In the first embodiment, the example in which the fixing member 3 is made of metal (for example, stainless steel) and the fixing member 3 is a reusable part has been described. Alternatively, the fixing member 3 may be made of resin, and the fixing member 3 may be a disposable part. In this case, each time the stainless steel beverage storage container 2 is collected, a new fixing member 3 is prepared in the first step ST1.

(Second Embodiment)
The second embodiment will be described with reference to FIGS. 15 to 21. FIG. 15 is a schematic cross-sectional view schematically showing a state after the inner bag assembly 6 is fixed to the stainless steel beverage storage container 2. FIG. 16 is a flowchart showing an example of a fixing method, a beverage filling method, and a beverage taking-out method for fixing the inner bag assembly 6 to the stainless steel beverage storage container 2 via the fixing member 3 in the second embodiment. FIGS. 17 to 20 schematically show how the steps of the fixing method for fixing the inner bag assembly 6 to the stainless steel beverage storage container 2 through the fixing member 3 in the second embodiment are executed. It is a schematic sectional drawing shown. FIG. 21 is a schematic cross-sectional view schematically showing an example of a state after the dispensing head 8 is attached to the fixing member 3.

  In the second embodiment, the fixing member 3 is made of resin. In the second embodiment, the fixing member 3 is coupled to the second portion 68 of the inner bag assembly 6 before the inner bag assembly 6 is inserted into the stainless steel beverage storage container 2. The second embodiment will be described with a focus on differences from the first embodiment, and a repetitive description of matters already described in the first embodiment will be omitted. For this reason, even if not explicitly described in the second embodiment, it goes without saying that the matters already described in the first embodiment can be applied to the second embodiment.

(Fixing member 3A)
The fixing member 3A in the second embodiment is made of resin. In the example illustrated in FIG. 15, the fixing member 3 </ b> A includes a positioning portion 30 that positions the second portion 68 of the inner bag assembly 6 and a male screw portion 31 s.

  The fixing member 3A is an annular body C1. 3 A of fixing members have the space SP prescribed | regulated by the internal peripheral surface of the cyclic | annular body C1, The filling nozzle which fills with the drink, or the plunger member of a dispense head can pass the said space SP.

  The fixing member 3 </ b> A includes a male screw portion 31 s that is screwed into the female screw portion 21 s of the base portion 21. The male screw portion 31s is formed on the outer peripheral surface of the annular body C1.

  In the example illustrated in FIG. 15, the fixing member 3 </ b> A includes a first engagement portion 33 for attaching the dispensing head 8 (see FIG. 21). The first engagement portion 33 may be, for example, a bayonet type engagement portion. In other words, the dispensing head 8 is pushed toward the fixing member 3A, and then the dispensing head 8 is relatively rotated with respect to the fixing member 3A, whereby the second engagement portion 83 of the dispensing head 8 and the fixing member 3A You may be comprised so that the 1st engaging part 33 may mutually engage.

  In the example illustrated in FIG. 15, the first engaging portion 33 protrudes inward from the wall portion 32 (more specifically, the annular wall) of the fixing member 3 </ b> A. Although FIG. 15 illustrates an example in which the fixing member 3A includes two first engaging portions 33, the number of the first engaging portions 33 included in the fixing member 3A is arbitrary.

  In the example illustrated in FIG. 15, the fixing member 3 </ b> A includes an annular projecting portion 35 that projects from the wall portion 32 toward the radially inward direction. The annular projecting portion 35 functions as a second valve seat portion 35b with which the second valve body 66a of the inner bag assembly 6 (in other words, the valve body of the gas valve V2) can contact.

  In the example illustrated in FIG. 15, the fixing member 3 </ b> A includes a lower portion 38 disposed below the annular protrusion 35. The lower portion 38 functions as a positioning portion 30 that positions the second portion 68 of the inner bag assembly 6.

  The fixing member 3 </ b> A (more specifically, the lower portion 38) includes a first connection portion 38 a that is coupled to the second portion 68 of the inner bag assembly 6. On the other hand, the second portion 68 of the inner bag assembly 6 includes a second connection portion 68b coupled to the fixing member 3A (more specifically, the lower portion 38). In the example illustrated in FIG. 15, the first connection portion 38 a and the second connection portion 68 b are coupled by engagement. More specifically, the first connection portion 38 a is a concave portion (or convex portion) provided on the inner peripheral surface of the lower portion 38, and the second connection portion 68 b is provided on the outer peripheral surface of the second portion 68. It is the convex part (or recessed part) made. In addition, the method of couple | bonding the 1st connection part 38a and the 2nd connection part 68b is not limited to the coupling | bonding by engagement.

(Fixing method for fixing the inner bag assembly 6 to the stainless steel beverage storage container 2)
With reference to FIG. 16 thru | or FIG. 20, the fixing method which fixes the inner bag assembly 6 to the stainless steel drink storage container 2 via the fixing member 3 in 2nd Embodiment is demonstrated.

  As shown in FIG. 17, in the first step ST1A, a stainless steel beverage storage container 2, an inner bag assembly 6, and a fixing member 3 (more specifically, a fixing member 3A) are prepared.

  Since the first step ST1A is the same as the first step ST1 in the first embodiment, a repetitive description of the first step ST1A will be omitted.

  In the second step ST2A, the fixing member 3A (more specifically, the first connection portion 38a) is coupled to the second portion 68 (more specifically, the second connection portion 68b) of the inner bag assembly 6. The In the example illustrated in FIG. 18, the fixing member 3 </ b> A and the second portion 68 are coupled by pushing the annular fixing member 3 </ b> A into the annular second portion 68.

  In the second embodiment, in the second step ST2A, the fixing member 3A and the second portion 68 are coupled, whereby the second portion 68 of the inner bag assembly 6 is moved relative to the positioning portion 30 of the fixing member 3A. Positioned.

  As shown in FIG. 19, in the third step ST3A, the inner bag assembly 6 is inserted into the stainless steel beverage storage container 2. The third step ST3A is an insertion process. In the third step ST3A, the inner bag main body 61 is inserted into the container main body 20 through the base portion 21.

  In the fourth step ST4A, the male screw portion 31s of the fixing member 3 and the female screw portion 21s of the base portion 21 are engaged with each other. The engagement is performed by screwing the male screw portion 31s into the female screw portion 21s. The fourth step ST4A is an engagement process (or a screwing process).

  FIG. 20 shows a state after the execution of the fourth step ST4A. In the example illustrated in FIG. 20, the lower surface of the fixing member 3 </ b> A is disposed so as to contact the upper surface of the inward protruding portion 22 disposed at the lower end portion of the base portion 21. In other words, in the example illustrated in FIG. 20, the fixing member 3 </ b> A is screwed into the base portion 21 until the lower surface of the fixing member 3 contacts the inward protruding portion 22.

  The fixing method for fixing the inner bag assembly to the stainless steel beverage storage container through the fixing member in the second embodiment is the inner bag assembly in the stainless steel beverage storage container through the fixing member in the first embodiment. The same effect as the fixing method of fixing a solid is produced. In addition, in the second embodiment, since the fixing member 3A is made of resin, the fixing member 3A can be manufactured at low cost. The fixing member 3A is, for example, a replacement part (disposable part) that can be used once.

  In the second embodiment, when the fixing member 3A and the inner bag assembly 6 (more specifically, the second portion 68) are integrated by coupling, the inner bag assembly 6 is The work of fixing to the stainless steel beverage storage container 2 is easy. More specifically, when fixing the inner bag assembly 6 to the stainless steel beverage storage container 2, the male screw portion 31 s of the fixing member 3 </ b> A integrated with the inner bag assembly 6 is replaced with the female screw of the base portion 21. It is only necessary to screw into the portion 21s.

(Beverage filling method, beverage removal method)
The beverage filling method and beverage take-out method in the second embodiment are the same as the beverage filling method and beverage take-out method in the first embodiment. Therefore, the repeated description about a drink filling method and a drink taking-out method is omitted. FIG. 21 shows an example of a state after the sixth step ST6 is executed in the second embodiment (in other words, a state after the dispensing head 8 is attached to the fixing member 3A). Has been.

  The beverage filling method and beverage withdrawal method in the second embodiment have the same effects as the beverage filling method and beverage withdrawal method in the first embodiment.

  In the second embodiment, when the fixing member 3A and the inner bag assembly 6 (more specifically, the second portion 68) are integrated by coupling, the inner bag assembly 6 is The removal work from the stainless steel beverage storage container 2 is easy. More specifically, when removing the inner bag assembly 6 from the stainless steel beverage storage container 2, the male screw portion 31 s of the fixing member 3 </ b> A integrated with the inner bag assembly 6 is replaced with the female screw portion of the base portion 21. It is only necessary to leave the 21s.

(Modification of the first urging member 67)
With reference to FIG. 22, the modification of the 1st biasing member 67 employable in embodiment is demonstrated. FIG. 22 is a schematic cross-sectional view schematically showing a state in which the first urging member 67 </ b> A in the modified example is arranged in the first cylindrical body 64. The upper side of FIG. 22 shows a state in which the beverage take-off valve V1 is closed by the urging force of the first urging member 67A, and the lower side of FIG. 22 shows the urging force of the first urging member 67A. The state that the beverage take-off valve V1 is opened against the above is described.

  In the example described in FIG. 22, the first biasing member 67 </ b> A disposed inside the stainless steel beverage storage container 2 (more specifically, inside the first cylindrical body 64) is made of metal (made of metal). The coil spring is not made of resin. When the first urging member 67A is made of resin, the collected inner bag assembly 6 can be easily disposed of or recycled. More specifically, without removing the first urging member 67A from the first cylindrical body 64, the first urging member 67A made of resin is discarded together with the first cylindrical body 64 made of resin (or Can be recycled).

  In the example shown in FIG. 22, the first urging member 67A is a plate-shaped resin spring. The lower end of the first urging member 67 is disposed in contact with the bottom portion 64b of the first cylindrical body 64, and the upper end of the first urging member 67A is connected to the first valve body 65a. In the example shown in FIG. 22, the first valve body 65a and the first urging member 67A are configured by a single component that is integrally formed. In this case, the manufacturing cost of the first valve body 65a and the first urging member 67A is reduced. Alternatively, the first valve body 65a and the first urging member 67A may be separate.

  The specific shape of the first urging member 67A is not limited to the example shown in FIG.

(First modification of second urging member 69)
With reference to FIG. 23, the 1st modification of the 2nd biasing member 69 employable in embodiment is demonstrated. FIG. 23 is a diagram schematically showing a second urging member 69A in the first modified example. 23, a schematic perspective view of the second urging member 69A and the annular member C2 is described, and a schematic sectional view of the second urging member 69A and the annular member C2 is described at the center of FIG. A schematic side view of the second urging member 69A and the annular member C2 is shown on the lower side of FIG.

  In the example described in FIG. 23, the second biasing member 69A disposed in the stainless steel beverage storage container 2 is not made of metal (metal coil spring) but made of resin. When the second urging member 69A is made of resin, the collected inner bag assembly 6 can be easily disposed of or recycled. More specifically, without removing the second urging member 69A from the first cylindrical body 64, the resin-made second urging member 69A is discarded together with the resin-made first cylindrical body 64 (or Can be recycled).

  In the example described in FIG. 23, the second urging member 69A is a plurality of elastic legs. The lower end of the second urging member 69A is disposed in contact with the second portion 68 of the inner bag assembly 6 (see FIG. 24), and the upper end of the second urging member 69A is an annular member C2 (in other words, , Connected to the second valve body 66a). In the example shown in FIG. 24, the annular member C2 and the second urging member 69A are constituted by a single integrally molded part. As shown in FIG. 24, the gap G between the first tubular body 64 and the second portion 68 of the inner bag assembly 6 is small. In the example shown in FIG. 24, since the second urging member 69A and the annular member C2 (in other words, the second valve body 66a) are integrated, the resin-made second urging member 69A is arranged at a small interval. It is possible to arrange in G (in other words, a small annular space).

  The specific shape of the second urging member 69A is not limited to the example shown in FIG. Further, when the second urging member 69A is constituted by a plurality of elastic legs, the number of elastic members provided in the second urging member 69A is two, three, four, or five. It may be more than one.

(Second modification of second urging member 69)
With reference to FIG. 25, the 2nd modification of the 2nd biasing member 69 employable in embodiment is demonstrated. FIG. 25 is a diagram schematically showing a second urging member 69B in the second modified example. 25, a schematic perspective view of the second urging member 69B and the annular member C2 is described. From the top of FIG. 25, a schematic sectional view of the second urging member 69B and the annular member C2 is shown. 25, a schematic bottom view of the second urging member 69B and the annular member C2 is described second from the bottom of FIG. 25, and the second urging member 69B and the annular member are illustrated on the lower side of FIG. A schematic plan view of C2 is described.

  In the example shown in FIG. 23, the ends of the elastic legs are all bent in the same direction (for example, clockwise or clockwise as viewed from the bottom). On the other hand, in the example shown in FIG. 25, the tips of two adjacent elastic leg portions (elastic leg portions corresponding to the second urging member 68B) are curved in directions facing each other. However, in the embodiment, the bending direction of the tip of each elastic leg is not limited to the examples shown in FIGS. 23 and 25 and is arbitrary.

  The annular member C2 and the second urging member 69B in the second modified example are the same as the annular member C2 and the second urging member 69A in the first modified example in other points. Therefore, repeated description is omitted.

(Third Modification of Second Biasing Member 69)
With reference to FIG. 26, the 3rd modification of the 2nd biasing member 69 employable in embodiment is demonstrated. FIG. 26 is a diagram schematically showing a second urging member 69C in the third modification. 26, a schematic perspective view of the second urging member 69C and the second portion 68 is described, and a schematic sectional view of the second urging member 69C and the second portion 68 is described in the center of FIG. 26, a schematic plan view of the second urging member 69C and the second portion 68 is described.

  In the example shown in FIG. 26, the second biasing member 69C disposed in the stainless steel beverage storage container 2 is not made of metal (metal coil spring) but made of resin. When the second urging member 69B is made of resin, the collected inner bag assembly 6 can be easily disposed of or recycled. More specifically, without removing the second urging member 69C from the first tubular body 64, the resin-made second urging member 69C is discarded together with the resin-made first tubular body 64 (or Can be recycled).

  In the example described in FIG. 26, the second urging member 69C is a plurality of elastic legs. The lower end of the second urging member 69C is connected to the second portion 68 of the inner bag assembly 6, and the upper end of the second urging member 69C contacts the annular member C2 (in other words, the second valve body 66a). Be placed. In the example shown in FIG. 26, the second portion 68 and the second urging member 69C are constituted by a single integrally molded part. As shown in FIG. 24, the gap G between the first tubular body 64 and the second portion 68 of the inner bag assembly 6 is small. In the example shown in FIG. 26, since the second urging member 69C and the second portion 68 are integrated, the resin-made second urging member 69C is separated by a small gap G (in other words, a small annular space). Can be placed inside.

  The specific shape of the second urging member 69C is not limited to the example shown in FIG. When the second urging member 69C is constituted by a plurality of elastic legs, the number of elastic members provided in the second urging member 69C is 2, 3, 4, or 5 It may be more than one. The second urging member 69C in the second modification may be employed in the first embodiment described above.

(Fourth modification of second urging member 69)
With reference to FIG. 27, the 4th modification of the 2nd biasing member 69 employable in embodiment is demonstrated. FIG. 27 is a diagram schematically showing a second urging member 69D in the fourth modification. 27, a schematic perspective view of the second urging member 69D and the second portion 68 is described on the upper side of FIG. 27, and a schematic sectional view of the second urging member 69D and the second portion 68 is described at the center of FIG. 27, a schematic plan view of the second urging member 69D and the second portion 68 is described.

  In the example described in FIG. 27, the second biasing member 69D disposed in the stainless steel beverage storage container 2 is not made of metal (metal coil spring) but made of resin. When the second urging member 69D is made of resin, the collected inner bag assembly 6 can be easily disposed of or recycled. More specifically, without removing the second urging member 69D from the first tubular body 64, the resin-made second urging member 69D is discarded together with the resin-made first tubular body 64 (or Can be recycled).

  In the example described in FIG. 27, the second urging member 69D is a plurality of elastic legs. The lower end of the second urging member 69D is connected to the second portion 68 of the inner bag assembly 6, and the upper end of the second urging member 69D is in contact with the annular member C2 (in other words, the second valve body 66a). Be placed. In the example shown in FIG. 27, the second portion 68 and the second urging member 69D are configured by a single component that is integrally formed. As shown in FIG. 24, the gap G between the first tubular body 64 and the second portion 68 of the inner bag assembly 6 is small. In the example shown in FIG. 27, since the second urging member 69D and the second portion 68 are integrated, the resin-made second urging member 69D is separated by a small gap G (in other words, a small annular space). Can be placed inside.

  The specific shape of the second urging member 69D is not limited to the example shown in FIG. When the second urging member 69D is constituted by a plurality of elastic legs, the number of elastic members provided in the second urging member 69D is 2, 3, 4, or 5 It may be more than one. The second urging member 69D in the third modification may be employed in the above-described second embodiment.

  In the embodiment, when the urging members (67, 69) are made of resin, all the components of the inner bag assembly 6 may be made of resin. In this case, the entire collected inner bag assembly 6 can be discarded as it is, or can be recycled. Therefore, sorting and recycling can be facilitated.

  The present invention is not limited to the embodiments described above, and it is obvious that the embodiments can be appropriately modified or changed within the scope of the technical idea of the present invention. In addition, various techniques used in each embodiment can be applied to other embodiments as long as no technical contradiction occurs. Furthermore, the optional additional configuration in each embodiment can be omitted as appropriate.

1: Beer storage container 2: Stainless steel beverage storage container 3, 3A: Fixing member 6: Inner bag assembly 8: Dispensing head 10: Fitting 10s: Male screw part 15: Cap part 15s: Female screw part 20: Container body 21: Cap part 21s: Female thread part 22: Inward projecting part 30: Positioning part 30b: Bottom part 31s: Male thread part 32: Wall part 33: First engaging part 35: Annular projecting part 35b: Second valve seat part 38: Lower side portion 38a: First connecting portion 61: Inner bag body 61a: Opening 61c: Projection 63: First portion 64: First tubular body 64b: Bottom portion 65a: First valve body 65b: First valve seat Portion 66a: second valve element 67, 67A: first biasing member 68: second portion 68b: second connecting portion 68u: upper surface 69, 69A, 69B, 69C, 69D: second biasing member 70: down tube 70c : Su Ilar tube 70u: upper end 71: side wall 72: bottom 80: main body 80h: gas introduction hole 83: second engagement portion 85: plunger member 641: lower portion 641a: down tube attachment portion 641b: down tube attachment portion 641h : Through-hole 643: annular protrusion 643a: inner bag main body attachment portion 645: upper end portion 645a: second valve body attachment portion 681: third engagement portion 684: annular protrusion 711: beverage passage portion 711a: slit 711b: beverage passage Hole 711c: Gap 721: Beverage passage hole 851: Pressing part C: Ring member C1: Ring body C2: Ring member C3: Ring body F: Flange part P1: Beverage channel P2: Gas channel S1: First seal member S2 : Second seal member SP: space SP1: first space SP2: second space V1: beverage take-off valve V2: gas valve V3: check valve

Claims (14)

A fixing method for fixing an inner bag assembly to a stainless steel beverage storage container via a fixing member,
The stainless steel beverage storage container is:
A container body;
A base portion having a female screw portion,
The inner bag assembly is
A flexible inner bag body;
A first portion having a beverage withdrawal valve;
A second portion positioned by the fixing member,
The fixing member includes a male screw portion,
The fixing method is as follows:
An insertion step of inserting the inner bag assembly into the stainless steel beverage storage container;
An engagement step of engaging the male screw portion of the fixing member and the female screw portion of the base portion;
A positioning step of positioning the second portion of the inner bag assembly with respect to the fixing member. The inner bag assembly includes a down tube,
The fixing method according to claim 1, wherein a beverage passage portion through which a beverage can pass is provided on a side wall of the down tube. The fixing method according to claim 1, wherein a plurality of protrusions are formed on an outer surface of the inner bag body. The fixing member is made of metal,
The fixing method according to any one of claims 1 to 3, wherein the second portion of the inner bag assembly positioned by the fixing member is made of resin. The fixing member is made of resin,
The fixing method according to any one of claims 1 to 3, wherein the second portion of the inner bag assembly positioned by the fixing member is made of resin. The first portion of the inner bag assembly includes a first valve body and a first valve seat that constitute the beverage take-off valve,
The fixing method according to any one of claims 1 to 5, wherein the fixing member includes a second valve seat portion that constitutes a part of the gas valve. Inside the stainless steel beverage storage container, there are a resin-made first biasing member that keeps the beverage take-off valve closed, and a resin-made second biasing member that keeps the gas valve closed. The fixing method according to any one of claims 1 to 6, wherein at least one of them is arranged. The second urging member is disposed inside the stainless steel beverage storage container,
The fixing method according to claim 7, wherein the second urging member is integrated with an annular member of the inner bag assembly or the second portion of the inner bag assembly. The said 2nd part of the said inner bag assembly, or the said fixing member is arrange | positioned so that the upper surface of the inward protrusion part arrange | positioned at the lower end part of the said nozzle | cap | die part may be contacted. The fixing method according to one item. The fixing method according to claim 1, wherein the fixing member includes a first engaging portion that engages with a dispense head. The fixing method according to any one of claims 1 to 10, wherein the stainless steel beverage storage container is a beverage storage container in which a stainless steel fitting has been mounted in the past. A method for taking out a beverage from a double container assembled by the fixing method according to any one of claims 1 to 11,
A mounting step of mounting the dispensing head on the fixing member;
A gas supply step for supplying gas to the first space between the stainless steel beverage storage container and the inner bag body via the dispensing head;
The beverage take-off valve for taking out the beverage from the inner bag body through the beverage take-off valve of the inner bag assembly and the dispensing head, and
The mounting step includes a first sealing step in which a first sealing member mounted on a main body portion of the dispensing head is in close contact with the fixing member.   The inner bag assembly attached to a stainless steel drink storage container using the fixing method according to any one of claims 1 to 11. An inner bag assembly disposed in a stainless steel beverage storage container,
A flexible inner bag body;
A first portion to which the inner bag body is attached and having a beverage take-off valve;
A down tube attached to the first portion and disposed within the inner bag body;
An inner bag assembly comprising: a second portion positioned by a fixing member attached to a cap portion of the stainless steel beverage storage container.

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