WO2004078014A1 - 液体容器 - Google Patents
液体容器 Download PDFInfo
- Publication number
- WO2004078014A1 WO2004078014A1 PCT/JP2004/002880 JP2004002880W WO2004078014A1 WO 2004078014 A1 WO2004078014 A1 WO 2004078014A1 JP 2004002880 W JP2004002880 W JP 2004002880W WO 2004078014 A1 WO2004078014 A1 WO 2004078014A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- liquid
- inert gas
- valve
- closed space
- pressure
- Prior art date
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 220
- 239000011261 inert gas Substances 0.000 claims abstract description 116
- 239000007789 gas Substances 0.000 claims description 66
- 238000002347 injection Methods 0.000 claims description 42
- 239000007924 injection Substances 0.000 claims description 42
- 238000005086 pumping Methods 0.000 claims description 20
- 238000004891 communication Methods 0.000 claims description 19
- 238000010926 purge Methods 0.000 claims description 17
- 230000006866 deterioration Effects 0.000 abstract description 15
- 230000000694 effects Effects 0.000 abstract description 10
- 230000001629 suppression Effects 0.000 abstract description 3
- 230000003647 oxidation Effects 0.000 abstract description 2
- 238000007254 oxidation reaction Methods 0.000 abstract description 2
- 238000012856 packing Methods 0.000 description 18
- 238000000605 extraction Methods 0.000 description 15
- 230000002093 peripheral effect Effects 0.000 description 14
- 238000012986 modification Methods 0.000 description 11
- 230000004048 modification Effects 0.000 description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 9
- 230000008859 change Effects 0.000 description 8
- 238000003860 storage Methods 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 229910001873 dinitrogen Inorganic materials 0.000 description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 229920003002 synthetic resin Polymers 0.000 description 6
- 239000000057 synthetic resin Substances 0.000 description 6
- 235000013361 beverage Nutrition 0.000 description 5
- 238000011156 evaluation Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000001953 sensory effect Effects 0.000 description 5
- 244000269722 Thea sinensis Species 0.000 description 4
- 230000009471 action Effects 0.000 description 4
- 239000000796 flavoring agent Substances 0.000 description 4
- 235000019634 flavors Nutrition 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 230000001590 oxidative effect Effects 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 239000003566 sealing material Substances 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 235000014171 carbonated beverage Nutrition 0.000 description 3
- 235000019640 taste Nutrition 0.000 description 3
- 235000013616 tea Nutrition 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 230000000881 depressing effect Effects 0.000 description 2
- 230000000994 depressogenic effect Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 241000238631 Hexapoda Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 235000006468 Thea sinensis Nutrition 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 235000019658 bitter taste Nutrition 0.000 description 1
- 235000020279 black tea Nutrition 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 235000013365 dairy product Nutrition 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 235000012489 doughnuts Nutrition 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- GPRLSGONYQIRFK-UHFFFAOYSA-N hydron Chemical compound [H+] GPRLSGONYQIRFK-UHFFFAOYSA-N 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000010525 oxidative degradation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229920000052 poly(p-xylylene) Polymers 0.000 description 1
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- 238000013077 scoring method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 235000014214 soft drink Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J41/00—Thermally-insulated vessels, e.g. flasks, jugs, jars
- A47J41/02—Vacuum-jacket vessels, e.g. vacuum bottles
- A47J41/022—Constructional details of the elements forming vacuum space
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D1/00—Apparatus or devices for dispensing beverages on draught
- B67D1/04—Apparatus utilising compressed air or other gas acting directly or indirectly on beverages in storage containers
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
- A47J31/44—Parts or details or accessories of beverage-making apparatus
- A47J31/50—Urns with devices for keeping beverages hot or cool
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J41/00—Thermally-insulated vessels, e.g. flasks, jugs, jars
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J41/00—Thermally-insulated vessels, e.g. flasks, jugs, jars
- A47J41/0005—Thermally-insulated vessels, e.g. flasks, jugs, jars comprising a single opening for filling and dispensing provided with a stopper
- A47J41/0027—Thermally-insulated vessels, e.g. flasks, jugs, jars comprising a single opening for filling and dispensing provided with a stopper the stopper incorporating a dispensing device, i.e. the fluid being dispensed through the stopper
- A47J41/0033—Thermally-insulated vessels, e.g. flasks, jugs, jars comprising a single opening for filling and dispensing provided with a stopper the stopper incorporating a dispensing device, i.e. the fluid being dispensed through the stopper comprising a pumping system
Definitions
- the present invention relates to a liquid container for storing various beverage liquids such as coffee and tea, and liquids other than the beverage liquid, and in particular, can suppress quality deterioration (oxidative deterioration) of the stored liquid due to oxidation.
- the present invention relates to a liquid container to be used. Background art
- liquid container for storing the stored beverage liquid there is a home-use push-type pot (see FIG. 1 of Japanese Patent Application Laid-Open No. H7-163471).
- This type of liquid container is generally used to store hot water for extracting coffee and tea, but may also be used to store coffee and tea instead of hot water. .
- An object of the present invention is to solve the above problems. In other words, it is necessary to provide a liquid container that can effectively suppress the oxidative deterioration of the liquid stored in the liquid container and maintain the suppression effect even when the stored liquid is discharged in small quantities. It is an object of the invention.
- the present invention firstly configures a liquid container as a closed space that is isolated from the atmosphere, and then replaces the atmosphere (air) in the closed space with an inert gas. did. As a result, the contact between the atmosphere and the stored liquid could be cut off, so that the oxidative degradation could be effectively suppressed.
- the detailed configuration will be explained later in the section. It should be noted that definitions of terms used in describing the invention described in any of the claims, etc. shall be applied to the inventions described in other claims to the extent possible in nature.
- the liquid container according to the invention described in the first invention includes an outer container, a heat-insulating inner container housed in the outer container, A lid structure capable of forming a closed space in the inner container by air-tightly closing the upper opening of the inner container to open and close, and gas supply means for supplying an inert gas of a predetermined pressure to the closed space of the inner container.
- a valve structure that allows the closed space of the inner container to communicate with the outside; a pumping pipe for guiding the liquid stored in the inner container to the outside of the outer container via the closed space; And a discharge valve provided on the pumping pipe.
- the heat retention of the inner container is a concept that includes both the heat retention of the container itself and the heat retention by a heating device or a cooling device.
- the lid structure j can be composed of one or more members, and refers to any member that can directly or indirectly close the inner container opening.
- the pulp structure is automatically opened and closed.
- the valve structure may have a function as a purge valve for releasing gas inside the closed space when the pressure in the closed space exceeds a predetermined value. Good.
- the lid structure is opened and the liquid is put into the inner container, and then the lid structure is closed. At this point, a closed space containing air is formed in the inner container.
- the valve structure is opened, the inside and outside of the inner container are temporarily connected.
- the inert gas is supplied into the closed space by the gas supply means.
- the atmospheric force in the closed space is gradually discharged to the outside through the valve structure.
- the inside of the closed space becomes an inert gas atmosphere (atmospheric dilution by inert gas)
- the valve structure is closed, the contact force between the liquid inside the inner container and the air will be cut off, and the deterioration of the liquid will occur.
- the closed space is maintained at a predetermined pressure (higher than atmospheric pressure) by an inert gas.
- Discharge valve When the gas is released, the stored liquid that has been under the pressure of the inert gas via the liquid surface is pushed up into the pumping pipe by the pressure of the inert gas. The pushed-up liquid passes through the closed space while being guided by the pumping pipe as it is, and is drawn out from the discharge valve (poured out). Fluid draining is terminated by closing the dispensing valve.
- inert gas power is continuously supplied, and the amount corresponding to the volume from which the liquid is drawn is replenished. With this, the inside of the closed space is maintained at a predetermined pressure.
- the stored liquid remains, and the liquid can be withdrawn as many times as possible.
- an inert gas corresponding to the amount of the withdrawn is supplied, and the pressure in the closed space is kept constant.
- the air does not enter the closed space when the liquid is withdrawn.
- the stored liquid is kept warm by the heat retention property of the inner container, and its deterioration is suppressed by the action of the inert gas.
- the liquid container of the first invention can store the liquid put in the inner container for a long time without changing the temperature and quality at the time of putting as much as possible. In addition, long-term storage avoids the economic loss of disposal by eliminating the need to dispose of liquids if not, due to quality degradation.
- the liquid container according to the invention described in the second invention (hereinafter, appropriately referred to as “the liquid container of the second invention”) is the liquid container of the first invention, wherein the lid structure is provided in the closed space.
- a purge valve for automatically purging when the pressure becomes equal to or higher than a predetermined value is provided.
- the liquid container of the second invention in addition to the function and effect of the liquid container of the first invention, when the pressure in the closed space rises to a predetermined value or more for some reason, the gas in the closed space is released.
- the pressure can be returned to a specified value or less by automatic purging.
- the pressure in the closed space rises above a predetermined value, for example, the liquid force to be extracted at the time of liquid extraction ⁇ the inconvenient force such as sudden ejection and scattering, etc. By doing so, such inconvenience can be prevented beforehand. It also contributes to higher safety.
- the liquid container according to the invention described in the third invention is the liquid container of the first invention or the second invention, wherein the lid structure is Supplied It is characterized by having a pressurizing structure for pressurizing the active gas.
- the pressurizing structure is provided either in the case where the pressure of the supplied inert gas alone is sufficient for extracting the liquid, or in the case where the pressure is increased to a sufficient level because it is not sufficient for the extraction. There may be.
- the pressure of the inert gas supplied by pressurizing the pressurizing structure can be increased.
- the pressurized structure When only the pressure of the supplied inert gas is sufficient to remove the liquid, the pressurized structure increases the pressure and enables smooth removal. Since the pressure is not sufficient, the pressurizing structure for raising the pressure to a sufficient level should be able to be removed by pressurizing.
- liquid container J of the fourth invention is the liquid container of the third invention, wherein the pressurizing structure includes a top plate and a bottom plate.
- the top plate and the bellows, and the bottom plate and the bellows are configured so that the air pump and the closed space can communicate with each other through an opening formed in the bottom plate.
- Each of them can be easily manufactured by, for example, integrally molding with synthetic resin, but can also be manufactured by other methods.
- the top plate or bottom plate does not necessarily have to be a single plate. Deformation is possible as appropriate.
- the bellows shrinks and the distance between the top plate and the bottom plate is reduced. Becomes shorter. That is, the volume in the air pump is reduced. Due to this reduction, the inert gas in the air pump is pushed out through the opening into the closed space, and the inert gas pressure in the closed space increases accordingly. That is, the inert gas is pressurized, and this pressure realizes a smooth extraction of the liquid.
- an air pump can efficiently pressurize inert gas.
- the liquid container according to the invention of the fifth invention (hereinafter referred to as “the liquid container of the fifth invention” as appropriate) is the liquid container of the third invention or the fourth invention, wherein the injection valve is A check valve that automatically opens so that it can be automatically returned by pressurizing the inert gas by the pressurizing structure. It is characterized by having been done.
- the pressurization may be continuous, intermittent, wavy, or the like.
- the injection valve when the pressurization by the pressurization structure is performed, the injection valve is correspondingly provided. Opens to allow liquid removal.
- the injection valve automatically returns to the closed state to prevent liquid withdrawal. Since the discharge valve is a check valve, liquid extraction is allowed, but the air that tries to flow in the opposite direction to the liquid is stopped.
- the liquid container according to the invention described in the sixth invention is the liquid container according to any of the third to fifth inventions,
- the supply means includes a gas passage for sending an inert gas to the closed space and a gas supply source, and the gas passage is provided with a gas check valve.
- the pressure of the inert gas in the closed space is increased by pressurizing the pressurizing means.
- the increased pressure prevents the inert gas from flowing back through the gas passage. Therefore, a liquid container having no pressurizing means does not necessarily have a check valve for gas because there is no backflow due to pressurization.
- the backflow of the inert gas may not occur due to the pressure of the inert gas supplied from the gas supply source being higher than the pressure of the inert gas to be backflowed.
- By installing a check valve it is not necessary to put an extra burden on the gas supply source. Therefore, for example, it is possible to simplify the structure of the gas supply source or to adopt a gas supply source having a low gas supply capacity.
- the liquid container according to the invention described in the seventh invention is the liquid container according to any one of the first to sixth inventions,
- the supply means is provided with a regulator for adjusting the pressure of the inert gas.
- the liquid container according to any one of the first to sixth inventions is manufactured.
- a regulator it is possible to accurately and smoothly adjust the pressure of the inert gas and the accompanying supply amount. Proper and smooth supply of inert gas stabilizes the pressure of the inert gas in the enclosed space. As a result, stable storage and smooth extraction of the stored liquid are promoted.
- the liquid container according to the invention described in the eighth invention is the liquid container of the first invention or the second invention, wherein
- the pressure of the inert gas is set to 0.001 to 0.1 MPa, more preferably to 0.003 MPa or less. It is sufficient that the pressure of the inert gas is higher than the atmospheric pressure, and the pressure is not intended to be limited to this range. However, it is preferable to set the pressure in the above range in order to smoothly extract the liquid.
- the liquid of the first invention or the second invention is The operation and effect of the container occur smoothly.
- the pressure of the supplied inert gas must be higher than the atmospheric pressure to push up the stored liquid, but if the pressure is less than 0.001 MPa, the pressure is too weak. It is not smooth because it takes too much time to extract the liquid.If it exceeds 0.1 MPa, the pressure is too high and the liquid when it comes out of the injection valve may be scattered and dispersed. I can't say it. Needless to say, however, whether or not the extraction is smooth depends on the properties of the liquid to be extracted (differences in types of inclusions and viscosities), the diameter of the pumping pipe, the shape of the discharge valve, etc. .
- the liquid container according to the invention according to the ninth invention (hereinafter, appropriately referred to as “the liquid device of the ninth invention”) is the liquid container according to any of the first to eighth inventions,
- the structure comprises an injection check valve for injecting a liquid into the closed space.
- the liquid in addition to the effect of the liquid container of any of the first to eighth inventions, the liquid can be injected into the inner container via the injection check valve. It is not necessary to open and close the lid structure. Opening the lid structure cleans the inside of the inner container, etc. Although it is convenient to perform liquid injection by opening the liquid, liquid injection through the injection check valve may be more convenient than injection with opening of the lid structure.
- opening the valve causes atmospheric power to enter the inner container, so it is necessary to perform an air extraction operation such as opening the valve structure again. By injecting the liquid so as not to invade the atmosphere, the liquid can be stored and dispensed without performing the work of extracting the air.
- FIG. 1 is a longitudinal sectional view of a liquid container according to the present embodiment.
- FIG. 2 is a partially enlarged view of the liquid container.
- FIG. 3 is a partially enlarged view of the liquid container.
- FIG. 4 is a plan view of the liquid container.
- FIG. 5 is a longitudinal sectional view showing a state in which the liquid container is vented.
- FIG. 6 is a partially enlarged view and a bottom view of a longitudinal section of the liquid container.
- FIG. 7 is a longitudinal sectional view of the bottom member.
- FIG. 8 is a longitudinal sectional view of a liquid container according to a first modification.
- FIG. 9 is a longitudinal sectional view of a liquid container according to a first modification.
- FIG. 10 is a front view of the liquid container.
- FIG. 1 is a longitudinal sectional view of a liquid container according to the present embodiment.
- FIG. 2 is a partially enlarged view of the liquid container.
- FIG. 3 is a partially enlarged view
- FIG. 12 is a piping diagram showing a flow of an inert gas.
- FIG. 13 is a longitudinal section of a liquid container according to a second modification.
- Fig. 16 is a chart showing the results of analysis
- Fig. 17 is a chart showing the results of sensory evaluation
- the liquid container 1 is formed to have almost the same appearance as a household or business pot (a thermos), and an outer container 2 constituting the outer appearance, and an inner container 1 having a heat insulating property contained in the outer container 2. 2, a lid structure 7 that allows the upper opening 1 2a of the inner container 1 2 to be air-tightly opened and closed to form a closed space 1 2b inside the inner container 1 2, and a lid structure with the upper part of the outer container 2.
- a first valve structure (a check valve for discharging liquid) 80 provided in the pumping pipe 21 is generally constituted by:
- the outer container 2 can be manufactured by processing steel / synthetic resin, and the inner container 12 is constituted by a vacuum double glass bottle in order to maintain heat insulation (constant temperature).
- the inner container 12 may be provided with a heater (not shown) or the like to keep the temperature.
- the shoulder member 8 is made of an integrally molded synthetic resin, and is generally formed in a funnel shape as a whole, and the lower portion thereof has a first valve structure 80 and a second valve structure to be described later. It is configured to function as a bus structure 90. More specifically, the shoulder member 8 has a flat upper surface 8a and an inner surface 8b inclined downward toward the center. In addition, the upper opening 12a of the inner container 12 extends from the inner surface 8b. And a liquid supply surface 8c that is steeply inclined toward. Further, the shoulder member S is provided with a water injection pipe cover 9 protruding forward (to the left in FIG. 1) in order to force a water injection pipe 22 described later.
- the liquid supply surface 8c is provided with a liquid inlet 8d for allowing the pumping pipe 21 to pass in an airtight state and a gas supply outlet 8e for supplying an inert gas (nitrogen gas). .
- the pumping pipe 21 is hung down to the vicinity of the bottom of the inner container 12, and the upper part thereof is bent in the horizontal direction toward the injection pipe power par 9. The bent horizontal portion of the pumping pipe 21 passes through the liquid outlet 8d while maintaining the airtightness.
- the liquid outlet 8d and the gas supply port 8e are arranged at positions facing each other with the upper opening 12a of the inner container 12 interposed therebetween.
- a liquid supply unit 10 is provided below the liquid supply surface 8c so as to cover the upper end of the inner container 12 from inside and outside the container.
- a sealing material 10a is interposed between the liquid supply unit 10 and the upper end of the inner container 12 to maintain airtightness between the two.
- the first vanoleb structure 80 is configured as a liquid discharge check valve that allows liquid to be discharged from the pumping pipe 21 to the outside, but does not allow air to enter in the opposite direction. That is, the first valve The structure 80 includes a communication path 80a, a valve ball moving path 80b, a slide support path 80c, and a coil storage chamber 80d that linearly communicate from left to right in FIG. The shape of the vertical section of each of these spaces is circular.
- the communication path 80a is a portion that directly communicates with the end of the pumping pipe 21, and the inner diameter of the valve ball moving path 80b that follows is set to be larger than the inner diameter of the communication path 80a.
- a seal member 80 s is disposed at a step between the communication path 80 a and the valve ball moving path 80 b due to the difference in inner diameter, and a passage hole through which liquid can pass is provided in the seal member 80 s. (Not shown) is formed.
- the inner diameter of the slide support path 80c is set smaller than the inner diameter of the valve ball moving path 8Ob, and therefore, there is a step between them.
- the valve ball moving path 80b is configured so that the valve ball 81 can move in the length direction of the moving path, and the diameter of the valve ball 81 is the inner diameter of the communication path 80a or slide support. It is set larger than any of the inner diameters of the road 80c.
- the valve ball 81 can be made of a substantially perfect sphere, for example, a metal or a synthetic resin.
- One end of a horizontal rod 8 2 a of an operating body 8 2 (described later), which is slidably supported by a slide support passage 80 c, is fixed to the valve ball 81, and the valve operating body 8 2 is moved.
- the valve ball 81 is configured to move.
- the other end of the horizontal bar 82a is fixed to a coil panel 80f in the coil storage chamber 80d, and the coil panel 8Of closes the horizontal bar 82a in the closing direction (from the left in Fig. 1).
- valve ball 8 1 is pressed against the seal member 80 s accordingly.
- the passage hole (not shown) of the seal member 80 s is always closed.
- the valve ball moving path 8 Ob communicates with the water injection pipe 22 through a drop hole 8 Oh that penetrates the bottom thereof.
- valve ball 81 passes through the passage hole of the seal member 80 s through the pumping pipe 21 and communicates with the valve ball moving path 80 b. However, it will communicate with the water injection pipe 22 through the drop hole 80 h.
- the second valve structure 90 is used to supply inert gas from the communication pipe 31 to the closed space 12 b of the inner container 12. It is configured as a check valve for inert gas injection that allows injection but does not allow gas in the reverse direction. That is, the second valve structure 90 includes a gas supply path 90 a communicating with the gas supply port 8 e described above, a valve ball moving path 9 Ob having an inner diameter larger than the inner diameter of the gas supply path 90 a, A communication path 90 C having an inner diameter smaller than the inner diameter of the valve ball moving path 90 b is provided.
- the valve ball moving path 90 b has a circular vertical cross-sectional shape, and accommodates the valve ball 91 in a freely movable manner in the length direction of the moving path.
- a sealing material 90 s having a through hole (not shown) is arranged, and the pressure contact of the valve ball 91 is provided.
- the passage hole can be closed.
- the valve ball 91 is not in close contact with the seal member 90 s due to the pressure of the inert gas supplied from the communication pipe 31 via the communication path 90 c, and is heated by an air pump 4 described later.
- the pressurized inert gas is blown from the gas supply path 90a into the valve ball transfer path 90b, the pressurized pressure (greater than the supplied pressure) of the seal member 90 causes the pressure to rise. s.
- the valve ball 91 is pressed, the passage hole of the seal member 90 s is closed, so that the pressurized inert gas is prevented from flowing back into the communication pipe 31.
- the lid structure 7 is attached to the shoulder member 8 via the hinge 27, whereby the lid structure 7 is attached to the upper opening of the inner container 12. 1 2a can be opened and closed.
- the locking of the lid structure 7 to the shoulder member 8 is performed by a locking structure (not shown) configured between the two.
- the lid structure 7 includes a cover plate 7a shaped like an inverted bowl, and receives an air pump (pressurized structure) 4 in a space surrounded by a single cover 7a.
- the cover plate 7a is made of a synthetic resin, and a part thereof is integrated with the above-described water injection pipe cover 9.
- the air pump 4 is formed by bonding a bellows 5 and a pump top plate 51 and a pump bottom plate 52 above and below the bellows 5, respectively.
- a valve mounting hole 56 for mounting a valve structure 60 described later is formed at substantially the center of the pump top plate 51.
- the periphery of the valve mounting hole 56 is folded down into the valve mounting hole 56 via the bent portion 51a.
- the folded portion is referred to as a folded portion 51b in this specification.
- an opening 58 for communicating the inside and outside of the air pump 4 is formed so as to penetrate therethrough.
- Air pump 4 May be formed into a lead body with a synthetic resin.
- the pump push plate 6 is formed in a short cylindrical shape composed of a circular top plate 6 j and a side wall 6 k hanging down from the periphery of the top plate 6 j, and the pump top plate of the air pump 4 is provided therein. It is configured to be able to store a part of 51.
- a gas escape hole 6 d is formed through the top plate 6 j, and the back side of the top plate 6 ⁇ , that is, on the pump top plate 51 side, the closed space 1 2 b of the inner container 1 2 a and the outside
- a pulp structure main body 6a which is a part of a valve structure 60 for communicating with the pulp is provided.
- the valve structure 60 in the present embodiment is constituted by an opening 58 of a pump bottom plate, a valve structure body 6a, and a gas escape hole 6d.
- the knob structure body 6a will be described later.
- FIGS. 3 and 4 on the outer peripheral surface of the side wall 6 k, there are provided ridges 6 g, 6 g having predetermined widths facing each other.
- the upper end surface of each ridge 6 g is set slightly lower than the upper surface of the top plate 6 j, that is, a step is formed between the ridge 6 g and the outer peripheral surface of the side wall 6 k.
- Reference numeral 6 f shown in FIG. 4 indicates an operation knob for rotating the pump push plate 6.
- the operation knob 6f has two recesses formed so that a fingertip can be inserted into the top plate 6j, and a portion sandwiched between the recesses can be pinched.
- a circular opening 7h for receiving the pump push plate 6 is formed in a substantially central portion of the cover plate 7a forming the appearance of the lid structure 7.
- elongated grooves 7g and 7g facing each other are cut out.
- the elongated grooves 7 g, 7 g are formed in a similar shape slightly larger than the ridges 6 g, 6 g so that they can pass through the ridges 6 g, 6 g .
- annular opening edge 70 a protruding from the upper end thereof in the direction of the stored pump push plate 6, Similarly, a cylindrical guide wall 70 hanging from the upper end is formed.
- the projecting dimension of the opening edge 70a is set slightly larger than the thickness dimension of the ridge 6g, whereby the guide wall 70 and the pump push plate 6 are formed.
- the ridge 6 g is accommodated between the side wall 6 k and the upper end surface of the ridge 6 g engages with the lower end surface of the opening edge 70 a to lift the pump push plate 6. It is configured so that it can be blocked. Furthermore, as shown in FIGS.
- the pump The push plate 6 is configured to be rotatable in a horizontal direction (in FIG. 3, in a direction perpendicular to the paper surface) with respect to the cover plate 7 a (guide wall 70). Therefore, when the pump push plate 6 is stored in the circular opening 7 h, the protrusions 6 g and 6 g of the pump push plate 6 are aligned with the elongated grooves 7 g and 7 g of the cover plate 7 a, and the latter passes through the former. After that, it can be performed by rotating the pump push plate 6 by a predetermined angle. After the rotation, the protrusions 6 g, 6 g are pressed from above by the opening edge 70 a as described above, and the lifting of the pump push plate 6 is prevented.
- Reference numeral 6 e denotes a see-through window for making the display section of the pump internal pressure gauge 57 visible from the outside of the pump push plate 6.
- the pump internal pressure gauge 57 is an internal pressure gauge for observing the internal pressure of the air pump 4.
- an operation port lid 53 is arranged between the force plate 7a and the pump top plate 51.
- the operation lock lid 53 has a substantially donut shape when viewed from above, and is sandwiched between the cover plate 7 a and the pump top plate 51 so as to surround the pump push plate 6. It is configured to be rotatable.
- the rotation of the operation lock lid 53 is performed by operating the lock knob 54 protruding from the upper surface thereof in the rotation direction.
- the lock knob 54 projects outside the cover plate 7a through a long groove 7d penetrating the canopy plate 7a. As shown in FIG.
- the operation lock lid 53 includes a cylindrical wall portion 55 having an inverted L-shaped cross section, and a pump push plate 6 extending from the lower end of the cylindrical wall portion 55 along the pump top plate 51. It has a horizontal protruding edge 55a protruding in the direction.
- the horizontal protruding edge 5 a has a predetermined width in the rotation direction of the operation lock lid 53 (the thickness direction in FIG. 3), and the horizontal protruding edge 5 a on the left side in FIG. 3. 5a is located on the front side of the ridge 6g in the thickness direction of the paper, and similarly, the right horizontal rim 55a is located on the back side of the ridge 6 in the thickness direction of the paper.
- the position where the pump push plate 6 can be pushed down in the present embodiment is set when the pump push plate 6 is located at a position where the position code Pa and the relief hole 6 d match in FIG.
- the pump push plate 6 is rotated clockwise to make the position code Pb coincide with the relief hole 6d, the setting is made as described in the next section.
- p is configured to be screw-connectable (the spiral ridge and the spiral groove may be in the reverse positional relationship as described above).
- the spiral ridge 70 d and the spiral groove 6 p on the left side in FIG. 3 extend upward from the front of the drawing to the back, and the spiral ridge 70 d and the spiral groove 6 p on the right side also It extends upward from the back side of the paper toward the front. Therefore, the pump push plate 6 shown in FIG.
- the pump push plate 6 can be raised. With this rise, the ridges 6 g and 6 g fall out of the elongated grooves 7 g and 7 g (see Fig. 4) and are no longer regulated by the opening edge 70a. Needless to say, the elongated grooves g and 7 g are formed to have dimensions that allow them to pass through the ridges 6 g and 6 g that rise obliquely due to the spiral structure. As the pump push plate 6 rises, the valve structure main body 6a, which is a main component of the valve structure 60, operates.
- the valve structure main body 6a is formed in a shape that can be mounted in the valve mounting hole 56 in the pump top plate 5 "I. That is, the valve structure main body 6a is formed by the top plate 6j of the pump push plate 6 It is roughly composed of a cylindrical part 6 b that hangs down from the center of the lower surface, and a slide cylinder 65 that can be slidably fitted outside the cylindrical part 6 b. It is formed to have a length that reaches the position where it penetrates the valve mounting hole 56 of the pump top plate 51, and has an outer diameter as shown in Fig. 3 with respect to the inner diameter of the valve mounting hole 56.
- the cylindrical portion 6b has vertical slits 6u, 6u that reach the position below the top surface of the top plate 6j at the time of liquid pouring (the position where the position code Pa coincides with the relief hole 6d). At the lower end of the vertical slits 6u, 6u, there are provided steps 6w, 6w, and a return spring 6c is arranged in the cylindrical part 6b.
- the slide cylinder 65 has an inner peripheral surface slidable on the outer peripheral surface of the cylindrical portion 6b, and an outer peripheral surface slidable on the lower end of the folded-down portion 51b of the pump top plate 51.
- a flange-shaped flange 61 is provided at an upper end thereof, a flange-shaped fitting projection 62 is provided at a lower end thereof, and slits 62s, 62s are provided in a vertical direction.
- the flange 61 has projections 61a, 61a that can penetrate the longitudinal slits 6u, 6u.
- An annular gasket 64 is fixed to the lower surface of the flange 61. is there.
- the gasket 64 is to be located between the flange 61 and the bent portion 51a of the pump top plate 51, and the return spring 6c moves the slide cylinder 65 downward in FIG.
- the air pump 4 is configured to be air-tightly closed by being urged in the (closing direction).
- the fitting projection 62 is configured to be able to contact the lower end of the folded-down portion 51b, thereby preventing the slide cylinder 65 from being pulled out upward.
- the pulp structure 60 indicated by a solid line is hermetically closed between the inside and the outside of the air pump 4 as described above.
- the spiral pushes 70 d, 70 d, the spiral grooves 6 p, 6 and the screw action of ⁇ cause the pump push plate 6 to rotate. Is pushed up.
- the cylindrical portion 6 b is raised by this pushing up, but the raised portions abut the stepped portions 6 w, 6 w of the cylindrical portion 6 b against the projections 6 1 a, 61 a of the flange flange 61, and further rise.
- the slide cylinder 65 is pulled up to separate the gasket 64 from the bent portion 51a of the pump top plate 51.
- a passage is formed between the regasket 64 and the bent portion 51a, and this passage communicates with the slit 62s to communicate the inside and outside of the air pump 4 as a whole (see FIG. 5). ). That is, the inside of the air pump 4 communicates with the closed space 1 2 b of the inner container 1 2 through the opening 58 of the pump bottom plate 52, and the outside of the air pump 4 passes through the relief hole 6 d of the pump push plate 6. Since the valve structure 60 communicates with the outside, the opening of the valve structure 60 allows the closed space 12b to communicate with the outside, that is, forms a purge passage.
- valve structure 60 when the valve structure 60 is closed, the pump push plate 6 is rotated in the counterclockwise direction (from the back of the paper of FIG. 3 to the front), and the spiral ridges 70 d and 70 d and the spiral groove 6 P , 6 p, and the screw action is applied in the opposite direction to that of the This can be performed by lowering the slide cylinder 65.
- a mechanism for moving the pump push plate 6 up and down a mechanism other than the above-described mechanism can be appropriately adopted.
- a cam mechanism (not shown) is provided between the operation of the operation lock lid 53 and the pump push plate 6 to move up and down, or the operation of the operation lock lid 5 is performed by depressing the lock knob 54 itself.
- the bellows 5 of the air pump 4 is configured to be slightly bent via the pump top plate 3 and the air pump 4 and the repurge passage can be opened by the bending.
- the inverted T-shaped valve operating body 82 is a member for determining whether the first valve structure 80 is opened or closed.
- the valve ball 81 controls opening and closing of the first parileb structure 80, and it has already been described that the valve ball 81 is linked with the horizontal bar 82a.
- the valve operating body 82 has the horizontal bar 82 a as one of the constituent elements. That is, the valve operating body 82 is generally composed of a horizontal rod 82a and a vertical rod 82b standing almost vertically from the horizontal rod 82a, and the vertical rod 82b is a shoulder.
- the upright support path 80p is configured to allow a movement in the lateral direction (the left-right direction in FIG. 1) in which the vertical rod 82b is slid along with the horizontal rod 82a.
- the through hole 52a also allows this lateral movement.
- a cam structure 59 is formed between the lock lever 53 and the upper part of the vertical rod 82 b located on the side of the air pump 4.
- the cam structure 59 has a tapered surface formed on the vertical rod 82b side (located on the back side of the paper in FIG.
- the valve operating body 82 is in the state shown in FIG. 1, that is, the valve ball 81 is pressed against the sealing material 81 s (the state where injection is impossible). )
- the lock lid 53 is configured to be rotatable in the horizontal direction by operating the lock knob 54 (see FIG. 4). However, when the lock knob 54 is locked, It cannot be dispensed. Conversely, when the lock knob 54 is turned clockwise to release the lock, the tapered surface of the lock lid 53 in the state shown in FIG.
- the cam structure 59 is disengaged by moving in a direction away from the paper surface and away from the paper surface back surface.
- the horizontal protruding edges 55a, 55a of the lock lid 53 in the state shown in Fig. 3 are extended below the protruding ridges 6g, 6g.
- the pump push plate 6 is configured to be prevented from being pushed down. In other words, by configuring so that the locking of the first valve structure 80 and the locking of the pump push plate 6 can be performed simultaneously, the liquid does not easily flow out even when one liquid container is folded down. In addition, the pump push plate 6 is inadvertently pushed down so that it cannot be pushed down.
- the inner container 12 is supported from below by an inner container receiving wall 14 rising from the center of the inner container receiving plate 13.
- a space S is formed between the inner container receiving plate 13 and the bottom member 3 of the liquid container 1, and a gas cylinder 1 containing nitrogen gas as an inert gas is formed in the space S. 5 is arranged.
- a regulator 16 attached to the lower surface of the inner container receiving plate 13 is disposed above the gas cylinder 15.
- the gas cylinder 15 and the regulator 16 are connected via a supply connection 17, and the supply connection 17 is internally provided with a source pressure on-off valve (not shown).
- the feed connection 17 is connected to a source pressure valve knob 18 via a valve rod 19 and a source pressure gauge 32 via a thin tube 33.
- a tubular communication pipe 31 is connected to the regulator 16, an upper end of the communication pipe 31 is connected to the second valve structure 90, and the gas cylinder 15 is connected to the second valve structure. It is configured to be able to supply inert gas to 90.
- the members described above are combined to form a gas supply unit in the present embodiment.
- the “nitrogen gas” used in the present embodiment means a gas containing nitrogen as a main component as an inert gas. Since this nitrogen gas is inert to coffee and the like, it is stored in a liquid container and replaced with air. After that, the coffee and the like cut off the contact with air (atmosphere), It can be expected that fresh flavor and effective control of deterioration of taste and the like can be expected.
- the inert gas includes nitrogen gas, carbon dioxide gas, and a mixture of nitrogen gas and carbon dioxide gas. Body and other gases could be used.
- carbonated drinks if carbon dioxide gas is used as the inert gas, it will be possible to prevent carbonated drinks from oxidizing and deteriorating, and also to prevent the loss of carbonated components.
- liquid beverages such as alcohols, carbonated beverages, nutrients, dairy products, and juices with pulp are also applicable liquids.
- the gas cylinder 15 in the above-described embodiment is preferably configured to be replaceable as a cartridge type.
- a structure composed of a lock ring 11 rotatably fitted to the bottom of the outer container 2 and a bottom member 3 on which a gas cylinder 15 is set is preferable.
- a lock finger 3a and a key 3b protrude from an outer peripheral wall of the bottom member 3, and the key 3b can be fitted (fit) into a key groove 2b formed in the bottom of the outer container 2. It is formed in.
- a hook finger 11 a that engages with the lock finger 3 a of the bottom member 3 is protruded.
- the gas cylinder 15 is attached to the bottom of the outer container 2 so that the key 3b of the bottom member 3 on which the gas cylinder 15 is set is fitted into the key groove 2b of the bottom so as not to rotate. Can be mounted by being locked by the rotation of the lock ring 11. Locking by the lock ring 11 is performed by engagement between the lock finger 11 a of the lock ring 11 and the lock finger 3 a of the bottom member 3.
- a gas cylinder is configured to be fixed on the bottom member 3, and externally via a gas supply valve (not shown) such as a nipple appropriately disposed on the fixed gas cylinder. You may comprise so that an inert gas can be supplemented.
- coffee is used as the stored liquid.
- the lock (not shown) of the lid structure 7 is released, and the lid structure 7 is opened to the outer container 2 (see FIG. 2).
- the closed space 12b is also opened by opening, and the upper opening 12a of the inner container 12 is exposed.
- the coffee extracted in advance is poured into the inner container 12.
- the lid structure 7 is closed and locked.
- the closed space 1 2 in the inner container 1 2 b, coffee, atmosphere and power are mixed.
- the air is replaced with an inert gas.
- the pump push plate 6 is rotated clockwise so that the position code Pb matches the relief hole 6 d (see FIG.
- the pump push plate 6 is actuated by the action of the push-up structure accompanying the rotation. rises. As the pump push plate 6 rises, the valve structure 60 is opened, and the closed space 12 b and the outside are in communication with each other via the inside of the air pump 4.
- an inert gas is supplied from the gas cylinder 15 to the second valve structure 90 via the communication pipe 31 by operating the supply connection portion 17. The supply of the inert gas may be started before the rotation of the pump push plate 6.
- the inert gas supplied to the second pulp structure 90 flows into the closed space 12b while moving the valve ball 91 in the opening direction at a predetermined pressure. Due to the flow of the inert gas, the pressure in the closed space 1 2 b increases, and passes through the opening 58 of the pump bottom plate 52 into the air pump 4 and further through the valve structure 60 outside the air pump 4. Then, the gas (atmosphere, inert gas) in the closed space 12b to the outside flows out through the relief hole 6d of the top plate 6j to the outside.
- the concentration of the inert gas is lower than the atmospheric concentration, but this ratio gradually diminishes as the inflow of the inert gas and the outflow of the internal gas continue, and eventually reverses or is replaced. .
- the replacement of the atmosphere in the closed space 12b with the substantially inert gas is completed.
- the pump push plate 6 is turned counterclockwise to match the position code Pa with the relief hole 6 d (see FIG. 4). As a result, the pump push plate 6 is lowered, and the valve structure 60 is also closed.
- the valve structure 60 By closing the valve structure 60, the inside of the air pump 4 and the inside of the closed space 12b become an inert gas atmosphere, so that the contact between the coffee and the atmosphere is cut off. Even in this state, the inert gas is in a state where it can be supplied, and is continuously supplied until a predetermined pressure is reached. Here, if for some reason the pressure in the closed space 1 2 b exceeds a predetermined pressure, the pressure pushes up the sliding cylinder 65 of the valve structure 60 to open it, and the inert gas can be automatically released. It is as follows. That is, the valve structure 60 functions as a purge valve when replacing the atmosphere with an inert gas, and when the pressure in the closed space 12b (inside the air pump 4) exceeds a predetermined value.
- the appropriate pressure in the closed space 1 2 b is set by the return spring 6 of the valve structure 60. This can be done by selecting the biasing force of c. If the pressure of the inert gas exceeds an appropriate value set for some reason (for example, the vapor pressure generated from coffee), the valve structure 60 automatically opens to adjust the pressure.
- the coffee is poured by turning the lock knob 54 shown in FIG. 4 clockwise to open the first valve structure 80 and depressing the pump push plate 6.
- the bellows 5 of the air pump 4 is contracted accordingly, whereby the inert gas in the air pump 4 is closed through the opening 58 and the closed space 1 2 b Flows into.
- the contracted bellows 5 naturally expands and returns to its original state when the pushing force is lost. Due to the flow of the inert gas, the inert gas in the closed space 12b is pressurized and rises. The pressurized inert gas presses the liquid level of the coffee and pushes the coffee up into the pumping pipe 21.
- the pushed-up coffee moves the valve ball 81 of the first pulp structure 80 in the opening direction while opposing the urging force of the coil panel 80 ⁇ , passes through the inside thereof, and is discharged from the discharge pipe 22 to the outside.
- the pressure in the closed space 12b which is reduced by the pour of coffee, is compensated by the inert gas continuously supplied from the gas cylinder 15 and is maintained at a substantially predetermined value. If the pump push plate 6 is depressed several times, coffee is poured and inert gas is supplied each time.
- the liquid container 1A shown in FIGS. 8 and 9 has a shoulder member 8.
- the shoulder member 8 has an opening in the center communicating with the closed space 12b, and this opening is air-tightly closed by the inner lid 40.
- the inner lid 40 is composed of a top plate 41 thinner than the periphery and a cylindrical shape hanging down from the lower surface of the top plate 41.
- An inner wall 42 is provided.
- the inner wall 42 is configured so that a male screw portion formed on the outer peripheral portion thereof can be screwed into the female screw portion of the shoulder member 8.
- the inner cover 40 is formed by this screwing and a packing 40 p arranged between the two. Is configured to be airtightly attached to the shoulder member 8.
- the top plate 41 is provided with a knob structure 60 'and an inner lid plug (inner lid joint, injection check valve) 43.
- the valve structure 60 ′ has both a purge function and a function as a safety valve, similarly to the valve structure 60 according to the present embodiment.
- the valve structure 60 ' is fitted into a mounting hole 41h penetrating the top plate 41, and has a shape similar to a thread winding as a whole.
- the valve structure 60 ' has an upper flange portion 60'c and a lower flange portion 60'b above and below the cylindrical body 60'a, respectively, and a spring 6 inside the cylindrical body 60'a.
- the c- spring 60's which lifts the 0's, supports the protrusion 63 so as to be able to protrude and retract from below via the movable plate 60'd located at the top.
- the upper flange portion 60'c has a function of engaging the periphery of the mounting hole 41h from above through the annular packing 60'p to support the entire valve structure 60 on the top plate 41. are doing.
- Reference numeral 63 a indicates a bridge member for assisting the protrusion 63 to stand on its own. The bridge member 63 a allows the protrusion 63 to come and go.
- a cylindrical peripheral wall 7b hanging from the bottom of the force-par plate 7a is used.When the lid structure 7 is closed, the peripheral wall 7b comes into contact with the tip of the projection 63 and Can be pressed. As shown in FIG. 9, the pressing by the peripheral wall 7 b is released by opening the lid structure 7.
- the valve structure 60 ′ when pressed by the peripheral wall 7 b is pressed against the top plate 41, so that the space between the annular packing 60 ′ p and the peripheral edge 4 1 ⁇ of the mounting hole 4 1 h is airtight.
- the pressure in the closed space 12b exceeds a predetermined value for some reason, the pressure acts on the lower flange portion 60'b to push up the valve structure 60 '. I do.
- this pushing force exceeds the biasing force of the spring 60's, the valve structure 60 'is pushed up while opposing the biasing force of the spring 60's.
- the airtightness between the annular packing 60'p and the peripheral edge 41e of the mounting hole 41h is released by this pushing up, and the gas inside is released.
- the pulp structure 60 ′ is configured to function as a safety valve when the lid structure 7 is closed, and as a vent valve (purge valve) for replacing the atmosphere and the inert gas when the lid structure 7 is opened. It is.
- the method of replacing the inert gas is as described in the description of the present embodiment.
- the inside of the closed space 12b of the inner container 12 is inertized before the coffee is filled. It is preferable to keep a gas atmosphere. It is also possible to supply coffee while evacuating the air inside the inner container 12 through the valve structure 60 ', and then supply the inert gas. This is because the chance of contact with the atmosphere is further reduced, which is preferable for preventing deterioration.
- the pressure in the closed space 12b can be monitored by an internal pressure gauge 57 '.
- the inner lid plug (injection check valve) 43 formed on the top plate 41 is set at a height that does not affect the closure of the lid structure 7. As shown in FIG. 9, the lid structure 7 is opened.
- the inner lid plug 43 is a plug for allowing coffee (liquid) to be poured into the inner container 12 without removing the inner lid 40, that is, without opening the closed space 12b.
- the inner lid plug 43 closes the lower part of the hollow part 43b, the hollow part 43b vertically penetrating the cylindrical body 43a from the upper surface of the top plate 41, and the hollow part 43b.
- the cylindrical body 43 a is formed integrally with the top plate 41 in order to simplify the production, but it may be formed separately.
- the tip of the check valve 45 is always elastically pressed against the perforated packing 43 d by the spring 43 e so that the hollow portion 43 b is air-tightly closed so that it can be opened. It has become.
- An annular receiving groove 43 f is formed on the outer periphery of the upper part of the cylindrical body 43a.
- the bottom part 43 c is formed so that a part thereof protrudes from the lower surface of the top plate 41, and the liquid supply pipe 44 is connected to the protruding part.
- the lower end of the liquid supply pipe 44 is hung down to a predetermined liquid storage surface.
- the reason for the dripping to the storage surface is that when coffee is poured from the inner lid plug 43, when the storage surface of the coffee stored in the inner container 12 reaches the lower end of the supply pipe 44, the supply pipe 4 This is because the coffee injected into the opening 4 closes and prevents further injection, thereby automatically stopping the coffee injection. That is, the liquid supply pipe 44 is provided with a function for automatically supplying a predetermined amount of coffee. Therefore, the length of the liquid supply pipe 44 is appropriately selected for the liquid supply power of the liquid ⁇ the liquid level of the inner container 12 to be stopped, that is, the required amount of the liquid stored in the inner container 12 By doing so, it can be determined.
- Reference numeral 95 indicates a liquid injection joint with a check valve attached to the end of the liquid supply pipe 96.
- the injection joint 95 is a cylindrical member having an outer diameter slightly larger than the outer diameter of the cylindrical body 43 a of the inner lid plug 43, and is configured to be connectable to the inner lid plug 43. It is.
- the injection joint 95 can receive the tip of the cylindrical body 43a at the joint body 95a and the connecting end (lower end in Fig. 9) of the joint body 95a (see the enlarged view of Fig. 9).
- the receiving recess 95b formed, an annular projection 95c that can be fitted to the receiving groove 43f near the entrance of the receiving recess 95b, and the receiving recess 9 that passes through the joint body 95a.
- Hollow path 95 e communicating with 5 b, hollow packing 95 d in receiving hollow 95 b side, receiving packing 95 d with hole, receiving recess 95 b in hollow path 95 e
- It comprises a check valve 95 j urged in the direction of the closing packing 95 f by 5 h and a projection 95 protruding from the check valve 95 j.
- the check valve 95j is constantly pressed against the closing packing 95f by the biasing force of the spring 95h, whereby the communication between the receiving recess 95b and the hollow passage 95e is established. It is designed to be airtight.
- the protrusion 95 k of the check valve 95 j has a c- hole whose end passes through the hole of the closing packing 95 f and the hole of the receiving packing 95 d and is located in the receiving recess 95 b.
- a part of the lid 95 g protrudes from the joint body 95 a, and a liquid supply pipe 96 is connected to the protruding part.
- the projection 95k comes into contact with the check valve 45 as shown in the enlarged view of FIG.
- the check valve 45 is pushed in to open the hole of the packing with hole 43d, while the biasing force of the spring 43e also pushes back the check valve 95j slightly to close the packing 95.
- the liquid supply pipe 96 communicates with the closed space 12 b via the liquid filling joint 95 and the inner lid plug 43.
- coffee can be poured (liquid can be supplied).
- the injection of the coffee is preferably performed using the pressure of an inert gas supplied by an inert gas supply device (not shown).
- Injection with inert gas means that the coffee force pushed by the inert gas moves in the supply pipe 96, but if it is an inert gas, it is injected together with the coffee or after the coffee This does not hurt the inert gas atmosphere in the closed space 12b.
- coffee can be poured through the inner lid plug 43, so that as long as the inner lid plug 43 is used, the lid structure is used except for cleaning the inside of the inner container 12 or the like. There is no need to release 7.
- This makes it possible, firstly, to place the empty inner container 12 first in an inert gas atmosphere before injecting coffee. Second, the stored coffee was emptied again by pour-out, and the coffee was poured into the inner container 12 with the reduced amount of stored coffee while maintaining the inert gas atmosphere. Make it possible. In the former case, the chance of insects in contact with the coffee and the air can be reduced as compared with the case where coffee is poured with the lid structure 7 opened, and in the latter case, washing etc. In the case where coffee replenishment is repeatedly performed until this time, the inert gas replacement need not be performed sequentially. The same applies to the liquid container 1B described later.
- Injection valve 100 is a seal material with a hole 101, a seal material with a hole 101, a valve ball 100 that can be pressed, and a valve ball for moving the valve ball 102 in the opening and closing direction.
- Road 103 valve ball movement Rod-shaped valve operating body 104 fixed to road 103, and valve operating body 104 supported in an airtight manner
- a spring 106 arranged in the valve ball moving path 103 to constantly urge the valve ball 102 in the closing direction.
- the valve operating body 104 is configured to be movable in the opening and closing directions together with the valve ball 102 by rotating the operation lever 108 via the cam structure 107.
- valve ball 102 is constantly pressed against the sealing material 101 with holes by the urging force of the spring 106, and the ejection valve 100 is in the closed state, but the operating lever 108 is rotated. Then, the cam structure 107 pulls the valve operating body 104 in the opening direction (from right to left in FIG. 8), and accordingly, the valve ball 102 also draws in the same direction to form a hole. The airtightness between the seal material 101 and the seal material 101 is released. That is, the poured pulp 100 is opened. Needless to say, the biasing force of the spring 106 is set to be higher than the pressure of the inert gas supplied to the closed space 12b. If it is small, it becomes impossible to keep the discharge valve 100 in the closed state.
- the inert gas supplied from the pipe 31 to the closed space 12b includes a pressure sufficient to press the liquid surface to push up the coffee into the pumping pipe 21 (for example, 0.001 to 0.000). IMP a). Therefore, when coffee is to be poured from the inner container 12, the coffee can be poured simply by operating the operation lever 108 and opening the discharge valve 100. That is, the coffee that has been pushed up by the inert gas by opening the dispensing valve 100 is discharged from the dispensing pipe 22 through the dispensing valve 100 to the outside. Therefore, the operation of the pump push plate as in the case where the liquid container 1 according to the present embodiment is used is not required, so that the operation becomes easier.
- the coffee stored in the inner container 12 can be cut off from contact with the atmosphere, so that coffee deterioration can be effectively suppressed in the future. Can be. Further, according to the liquid container 1A, when injecting or refilling the coffee into the inner container 12, it is not necessary to pay attention to the stored amount of coffee each time. This is because even if you do not care, the supply is automatically cut off after a certain amount of injection.
- the liquid container 1B according to the second modification of the present embodiment is basically a liquid container based on the same operation principle as the liquid container 1A according to the first modification described above. It is configured to perform storage and discharge.
- the liquid container 1B is greatly different from the liquid container 1A in the structure of the supply of the inert gas and the structure of the purge valve.
- the second valve structure for preventing the backflow of inert gas due to pressurization was omitted in the former, and the regulator took on that role.
- the purge function and the safety valve function were used together.
- the valve structure is composed of independent valves. In the following, this different point will be mainly described. As for members common to the present embodiment, only the necessary range will be described as described above.
- a lid structure 141 is attached to the upper part of the outer container 2 of the liquid container 1B shown in FIG. 10 to FIG.
- the lid structure 14 1 includes a lid structure body 14 3 hinged to the outer container 2 and an openable / closable cap portion 144 provided on the top of the lid structure body 144.
- the outer container 2 is provided with a shoulder member 151, and an opening communicating with the closed space 12b of the inner container 12 is formed in the center of the shoulder member 151.
- an inner lid 1 53 and a packing 1 5 2 are provided, and when the lid structure 1 4 1 is closed, the packing 1 5 2 becomes a shoulder member 1 5 1 and an inner lid.
- the inner lid 15 3 is in close contact with 15 3 so that the closed space 12 b can be hermetically sealed.
- the lid structure 1 4 1 is a lock structure (not shown) formed between the lid structure body 1 4 3 and the outer container 2. Thus, both are securely locked with y. .
- Cap part 1
- Reference numeral 146 denotes a cover member attached to the back surface of the outer container 2 via a detachable hinge 148.
- the cover member 146 is a member for covering an inert gas supply structure described later. For example, when the cover member is opened as shown by an imaginary line in FIG. 13, the inert gas supply structure is exposed. It is configured to be able to.
- the inner lid 15 3 has four supply valves, a supply valve 16 1, an exhaust valve 16 2, a purge valve 16 3, and a supply valve 16 4. It is provided.
- the former two are manually operated valves, and the latter two are automatically operated valves.
- the supply valve 161 is a parylene for supplying the inert gas supplied through the supply pipe # 67 into the closed space 12b.
- the exhaust valve 162 is a valve that opens when the inert gas is supplied and exhausts the atmosphere in the closed space 12b. Exhaust valve 1 6 2 force 2nd change
- a valve structure for evacuating the atmosphere according to the embodiment is configured.
- the purge valve 163 has a function of automatically opening when the pressure in the closed space 12b exceeds a predetermined value and keeping the pressure in the closed space 12b within the predetermined value.
- the purge valve 163 can be designed by appropriately considering the structure of the supply source of the inert gas, the strength of the member or structure surrounding the closed space 12b, the installation of purge means other than the purge valve 163, etc. It can be omitted.
- the supply valve 16 1 has the same structure and function as the inner lid plug 43 (see FIG. 8) according to the first modification.
- a liquid supply pipe 166 is attached to the closed space 1 2b side of the liquid supply valve 16 4.
- the liquid supply pipe 166 has the same function as the liquid supply pipe 44 described above (see FIG. 8).
- Part or all of the supply pipe 1667 is flexible (flexible) so that it can follow the opening and closing of the lid structure 141, and a play of sufficient length is provided. . Therefore, the supply pipe 167 becomes slack when the lid structure 141 is in the closed state, and can extend when the lid structure 141 is in the open state.
- Reference numeral 168 denotes a discharge pipe provided on the discharge pipe 22, and the discharge pipe 22 is directly connected to the pumping pipe 21. That is, when the pulp 168 is opened while the inert gas is supplied, the coffee under the pressure of the inert gas is pushed up into the pumping pipe 21, and passes through the outlet pipe 22. It is being poured out.
- Coffee can be injected into the inner container 1 2 directly by opening the lid structure 14 1 to the inner container 1 2, but it is not necessary to open and close the lid structure 1 4 1 through the liquid supply valve 16 4 This is the same as the advantage of the liquid container 1A described above.
- the opening causes the air to enter the closed space 12b of the inner container 12, so the air is vented by opening the exhaust valve 162 again.
- coffee can be stored and poured out without performing air extraction work by injecting coffee so that the air does not enter through the liquid supply valve 164. This is very convenient not only when infusing coffee into the empty inner container 1 2 but also when refilling coffee into the inner container 1 2 where coffee remains, saving the trouble of removing the air.
- Inert gas supply structure (gas supply means) 17 1 is a gas tank 17 2 for storing inert gas, and a gas tank 17 2 And a regulator 17 for reducing pressure.
- the output of 6 is connected to the supply valve 16 1 via the supply pipe 16 7.
- the regulator 1776 is provided with a handle 1778 for pressure adjustment, and the handle 1778 can be operated from outside the cover member 144.
- the gas pressure in the supply pipe 167 is configured to be monitored by a digital pressure gauge 177.
- the display of the digital pressure gauge 177 is exposed to the outside from the window 147 provided on the cover member 146, and the pressure can be read with the cover member 146 closed. It is.
- the internal pressure of the gas tank 17 2 can be monitored by a pressure gauge 17 3, and external pressure (for example, an inert gas generator) is inserted into the gas tank 17 2 via a valve 17 4. Can be filled.
- Reference numeral 175 indicates an inert gas discharge valve disposed between the gas tank 172 and the regulator 176.
- the regulator “176” and the digital pressure gauge 177 are screwed to the outer container 2 via the mounting member 179.
- the pressure of the inert gas supplied into the closed space 12 b is in the range of 0.001 to 0.1 MPa, more preferably 0.03 MPa. Good results were obtained with the following settings. In other words, the pressure of the supplied inert gas must be higher than the atmospheric pressure to push up the stored coffee, but if the pressure is less than 0.001 MPa, the pressure is too weak. It cannot be said that it is smooth because it takes too much time to remove the liquid, and if it exceeds 0.1 MPa, the pressure is too high and the liquid when it comes out of the injection valve may be scattered, so it cannot be said that it is smooth Because. However, whether or not the extraction is smooth depends on the properties of the liquid to be extracted (differences in types of inclusions and viscosities), the diameter of the pumping nozzle and the shape of the discharge valve. Needless to say ⁇
- FIG. 15 The description will be made with reference to FIGS. 15 to 17.
- a test was conducted on the change over time of the stored coffee.
- Experimental items and analytical equipment are shown in Fig. 15. Is as shown in FIG.
- the coffee to be tested was obtained by the following procedure. First, the coffee was extracted twice from the coffee powder with a predetermined amount of hot water, and the extracted coffee was mixed. Half of the mixed coffee was poured into liquid container 1B, and the other half was poured into liquid container C (not shown) equivalent to liquid container 1B, with the lid structure opened.
- an inert gas nitrogen gas
- the exhaust valve 162 is opened for about 90 seconds to close the closed space.
- the inside of 12b was made an inert gas atmosphere (see Fig. 13).
- the inside of the liquid container C was kept at the atmosphere.
- the rate of change in the chart of Fig. 16 is as follows: when the elapsed time after extraction (vertical axis of the chart) is 0 (zero) minutes, and the measured value is 1 (60 minutes, 180 minutes) , 480 minutes).
- the coffee stored in the liquid container IB is referred to as “coffee 1 BJ”
- the coffee stored in the liquid container C is referred to as “coffee CJ”.
- the results of the sensory evaluation are as shown in the chart of FIG.
- Sensory evaluation was carried out by tasting coffee poured over time and evaluating the five items of aroma, 'bitterness', 'acidity', and body (body).
- the evaluation criteria are based on 0 (zero) minutes after the extraction, and aged coffee (coffee C, coffee IB) and new coffee (coffee IB) added as 0 (zero) minutes after each sensory. Scored in comparison with D). Using a score of 4 as the reference value (taste of coffee D at 0 minutes after extraction), a scoring method was used, with higher numbers being better and lower being worse. H In Yart, the larger the area force surrounded by the line segment, the less the deterioration.
- the liquid container of the present invention it is possible to effectively suppress the oxidative deterioration of the stored liquid and maintain the suppression effect even when the stored liquid is discharged in small quantities.
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
- Closures For Containers (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/547,255 US20060144865A1 (en) | 2003-03-06 | 2004-03-05 | Liquid container |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003-059355 | 2003-03-06 | ||
JP2003059355 | 2003-03-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004078014A1 true WO2004078014A1 (ja) | 2004-09-16 |
Family
ID=32958846
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/002880 WO2004078014A1 (ja) | 2003-03-06 | 2004-03-05 | 液体容器 |
Country Status (3)
Country | Link |
---|---|
US (1) | US20060144865A1 (ja) |
KR (1) | KR20050113207A (ja) |
WO (1) | WO2004078014A1 (ja) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060186136A1 (en) * | 2002-11-29 | 2006-08-24 | Albert Wauters | Beer dispensing apparatus |
US20060175355A1 (en) * | 2005-02-09 | 2006-08-10 | Glucksman Dov Z | Beverage dispenser |
DE102006060746B3 (de) * | 2006-12-21 | 2008-01-31 | BSH Bosch und Siemens Hausgeräte GmbH | Brühgetränkemaschine mit Sicherheitsventil |
TW200831029A (en) * | 2007-01-17 | 2008-08-01 | Tsann Kuen Entpr Co Ltd | Device for brewing up the extracted objects |
JP2009160188A (ja) * | 2007-12-28 | 2009-07-23 | Satako:Kk | コーヒーマシン |
US20120012008A1 (en) * | 2010-07-16 | 2012-01-19 | Hop Shing Metal & Plastic Manufactory Ltd. | Tea brewing apparatus |
CA3108995C (en) * | 2014-05-24 | 2022-08-23 | GrowlerWerks, INC. | Beverage dispenser and variable pressure regulator cap assembly |
CN104116408B (zh) * | 2014-07-18 | 2017-02-01 | 允慧科技(上海)有限公司 | 空气提升泵送装置以及包括该装置的流体容器和冲茶机 |
TWI618514B (zh) | 2017-05-17 | 2018-03-21 | 弘麒科技股份有限公司 | 氣泡水機及攜帶式壓力瓶 |
US10092132B1 (en) | 2017-09-06 | 2018-10-09 | Ryan Brothers Coffee Of San Diego, Inc. | System and method for cold storage and hot or cold delivery of a brewed beverage |
CN108529546B (zh) * | 2018-06-01 | 2023-07-07 | 北京公共交通控股(集团)有限公司 | 便捷加油机 |
KR20220032665A (ko) * | 2020-09-08 | 2022-03-15 | 현대자동차주식회사 | 자동차용 리저버 탱크의 공기역류 방지 장치 |
CN115027810B (zh) * | 2022-07-29 | 2023-10-27 | 青岛山海家居用品有限公司 | 一种防氧化食用油瓶密封方法及瓶盖 |
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US4310104A (en) * | 1979-09-04 | 1982-01-12 | Zojirushi Vacuum Bottle Co., Ltd. | Vacuum bottle with bellows pump |
US5443186A (en) * | 1994-01-05 | 1995-08-22 | Grill; Benjamin | Fluid dispenser which has a button actuated regulator valve and a pressure relief port in the button |
JPH10314027A (ja) * | 1997-05-19 | 1998-12-02 | P-Kotsuku Mahobin Kogyo Kk | 容器の蓋取付け構造 |
DK173743B1 (da) * | 2000-02-14 | 2001-08-27 | Gram Inventa As | Anlæg til automatisk regulering af kuldioxidindholdet i øl i et fadølsanker |
US6401985B1 (en) * | 2000-11-27 | 2002-06-11 | Demars Robert A. | Liquid dispensing apparatus |
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2004
- 2004-03-05 KR KR1020057016147A patent/KR20050113207A/ko not_active Application Discontinuation
- 2004-03-05 WO PCT/JP2004/002880 patent/WO2004078014A1/ja active Application Filing
- 2004-03-05 US US10/547,255 patent/US20060144865A1/en not_active Abandoned
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JPS5066384A (ja) * | 1973-10-18 | 1975-06-04 | ||
JPS5337951U (ja) * | 1976-09-07 | 1978-04-03 | ||
JPS5924254Y2 (ja) * | 1978-09-21 | 1984-07-18 | 株式会社東芝 | 熱湯製造器 |
JPS55107690A (en) * | 1979-02-07 | 1980-08-18 | Asahi Malleable Iron Co Ltd | Method and structure for pouring out liquid |
JPS6221592Y2 (ja) * | 1981-03-20 | 1987-06-01 | ||
JPS6221239Y2 (ja) * | 1982-01-25 | 1987-05-29 | ||
JPH0427838Y2 (ja) * | 1984-07-24 | 1992-07-03 | ||
JPS61205438U (ja) * | 1985-06-12 | 1986-12-25 | ||
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JP2000253997A (ja) * | 1999-03-05 | 2000-09-19 | Tiger Vacuum Bottle Co Ltd | 真空二重容器を持った電気貯湯容器 |
Also Published As
Publication number | Publication date |
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KR20050113207A (ko) | 2005-12-01 |
US20060144865A1 (en) | 2006-07-06 |
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