JP2020019570A - Double pressurized container, discharge product, discharge member, discharge device, and dispenser system using them - Google Patents

Abstract

To provide a double pressurized container, a discharge device and a dispenser system which are easy to use by consumers, safe and environmentally friendly.SOLUTION: A double pressurized container 11 includes: an outer container 13; a flexible inner container 14 stored in the inside of the outer container 13; and a lid body 15 stuck to at least one of the outer container 13 and the inner container 14 to seal both the outer container 13 and the inner container 14, wherein the inside of the inner container 14 serves as a stock solution storage chamber for filling a stock solution C, a space between the outer container 13 and the inner container 14 serves as a pressurizing agent storage chamber for filling a pressurizing agent P, and the lid body 15 includes a part 15d to be opened for opening the stock solution storage chamber.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a double pressurized container, a discharge product, a discharge member, a discharge device, and a dispenser system using the same.

  In FIG. 11 of Patent Literature 1, a container body having an opening at an upper end and a valve accommodating portion which closes the opening and is fixed to the container main body, wherein the valve accommodating portion has a cylindrical housing portion, There is disclosed a contents container having an opening portion which is detachably fitted into a hole formed in a bottom surface of the housing portion. FIG. 7 of Patent Document 1 discloses a content storage container provided with a closing portion that is opened by breaking at the bottom of the valve housing portion. These are used by detachably accommodating a pump valve or an aerosol valve in a valve accommodating section and fixing the opening by a dip tube, or by breaking a closing section by fixing with a screw cap. Therefore, there is an advantage that the valve can be used repeatedly, and the content container can be manufactured at low cost.

  Patent Document 2 discloses a two-layer discharge container including an outer container, an inner container housed in the outer container, and a valve assembly for closing the outer container and the inner container. This Patent Document 2 describes a technique of filling an inner container with a stock solution, filling a pressurizing agent between an inner container and an outer container, and a technique of simultaneously forming the outer container and the inner container by biaxial stretch blow molding. ing.

WO2015 / 80252 JP 2016-16896 A

  Since the content container of Patent Document 1 is opened by screwing a valve provided with a dip tube, the tip is easily shifted from the position of the unsealing portion due to the curvature of the dip tube. Also, the dip tube is soft and easy to bend when opened, making it difficult to open. In addition, if the liquid is discharged upside down by mistake, only the pressurizing agent is discharged, and the remaining undiluted liquid cannot be discharged. When the container is made of a synthetic resin, the container may be damaged when dropped during a distribution process such as transportation, warehouse storage, or store display, and the pressurizing agent or the undiluted solution may leak.

  Since the two-layer discharge container of Patent Document 2 is separately filled with the stock solution and the pressurizing agent, there is no need to use a dip tube, and the discharge member is simple. However, since the valve protrudes from the discharge container, it is necessary to strictly protect the valve from operating during the distribution process. Furthermore, since the contents are distributed with a valve, the contents may leak through the valve.

  An object of the present invention is to provide a double pressurized container, a discharge product, a discharge member, a discharge device, and a dispenser system that are highly safe during distribution, easy to use by consumers, and safe and environmentally friendly. .

  The double pressurized containers 11 and 31 of the present invention include outer containers 13 and 33, flexible inner containers 14 and 34 housed inside the outer containers 13 and 33, and the outer container 13. 33 and lids 15, 35, which are fixed to at least one of the inner containers 14, 34, and seal both the outer containers 13, 33 and the inner containers 14, 34. Is an undiluted solution accommodating chamber for filling the undiluted solution C, and a space between the external containers 13 and 33 and the internal containers 14 and 34 is a pressurized agent accommodating chamber for filling the pressurized agent P. It is characterized in that the bodies 15, 35 are provided with unsealed portions 15d, 44 for opening the undiluted solution storage chamber.

  In such double pressurized containers 11 and 31, the lids 15 and 35 have flanges 15b and 40 that cover the upper end surfaces of the external containers 13 and 33 and the internal containers 14 and 34, respectively. It is preferable to include bottomed cylindrical sealing portions 15a and 39 inserted into the openings, and to have unsealed portions 15d and 44 on the bottom portions 15c and 42 of the sealing portions 15a and 39, respectively.

  The inner container 34 has a flange 38b held on the upper end surface 13f of the outer container 33, and the flange 40 of the lid 35 has an annular disc portion 46 covering the upper end surface 38a of the inner container 34; An outer cylinder portion 47 for inserting the outer peripheral surface of the flange 40 of the container 34 is preferable.

  An annular projection 38c is provided on the upper end surface 38a of the inner container 34 or the lower surface of the annular disk portion 46 of the lid 35, and the upper end surface 36a of the outer container 33 or the lower end surface of the outer cylindrical portion 47 of the lid 35. It is preferable that an annular projection 36b is provided on the bottom.

  The upper end surface 13f of the outer container 13 and the upper end surface 14e of the inner container 14 are at the same height, and the flange 15b of the lid 15 connects the upper end surface 14e of the inner container 14 and the upper end surface 13f of the outer container 13. Covering is preferred. In this case, it is preferable that an annular step 13h is formed on the inner periphery of the upper end of the outer container 13, and the inner container 14 includes a flange 14f held by the annular step 13h of the outer container 13. . An inclined portion 15b2 for welding may be formed at the base of the flange 15b of the lid 15 and the sealing portion 15a.

  The sealing portion 39 includes an inner cylindrical portion extending downward along the inner surface of the neck portion 14d of the inner container 14, and a fitting cylindrical portion 41 provided concentrically with the inner cylindrical portion below the inner cylindrical portion. A connecting portion that connects the lower end of the inner cylindrical portion and the upper end of the fitting cylindrical portion 41, and a bottom portion 42 that closes a portion slightly above the lower end of the fitting cylindrical portion 41; It is preferable that the unsealed portion 44 is provided on the bottom portion 42.

  An inner cylindrical portion 15a1 in which the sealing portion 15a extends downward along the inner surface of the neck portion 14d of the inner container 14, and a fitting cylindrical portion provided inside the inner cylindrical portion 15a1 and concentrically with the inner cylindrical portion 15a1 ( A sealing tube portion) 15a2, a connecting portion 15a6 connecting the lower ends of the inner tube portion and the fitting tube portion 15a2 to each other, and a bottom portion 15c closing a portion slightly above the lower end 15a5 of the fitting tube portion 15a2, It is preferable that the unsealed portion 15d is provided on the bottom portion 15c of the fitting tubular portion 15a2. In that case, the neck 14d of the inner container 14 has a cylindrical upper portion 14d1 and a tapered portion 14d2 tapering downward, and the lower portion of the inner cylindrical portion of the lid 15 is More preferably, a double pressurized container 58 that fits into the tapered portion 14d2 of the neck 14d.

  The discharge products 11a and 31a according to the present invention include any one of the double pressurized containers 11 and 31 described above, the undiluted solution C filled in the undiluted solution storage chamber, and the pressurized agent filled in the pressurized agent storage room. P. In the discharge products 11a and 31a, it is preferable that the lids 15 and 35 are fixed by welding and the unsealed portions 15d and 44 are in contact with the stock solution C in the stock solution storage chamber.

  The discharge members 12 and 32 of the present invention are the discharge members 12 and 32 used for any of the discharge products 11a and 31a, and include a mounting portion (20) detachably mounted on the external containers 13 and 33. A valve (21) for opening / closing the unsealed portions 15d, 44 of the lids 15, 35, and a valve (21) which communicates with the internal containers 14, 34 via the opening portion 27, and switches between communication and blocking with the outside. And an operation unit (23) attached to the valve (21) and discharging the undiluted solution C by operation.

  The discharge devices 10 and 30 of the present invention include any one of the discharge products 11a and 31a and the discharge members 15 and 32 detachably attached to the discharge products 11a and 31a. The dispenser system according to the present invention includes a group of the first discharge devices including the above-described discharge devices 10 and 30 in which the stock solution storage chamber is filled with the first stock solution, and a second stock solution different from the first stock solution in the stock solution storage room. And a second discharge device group consisting of the discharge devices 10 and 30 described above, wherein the discharge members 15 and 32 of the first and second discharge devices 10 are the same group of discharge products 11a and 31a. It is characterized in that it can be mounted on the other products and cannot be mounted on the discharge products 11a and 31a of other groups.

  The double pressurized container of the present invention is used by filling an inner container with a stock solution. Since the lid seals the internal container, which is the undiluted solution storage chamber, and includes the unsealed portion to be opened, it is impossible to discharge the liquid without a dedicated discharge member for opening the unsealed portion. Therefore, there is no erroneous injection at the time of distribution, and the safety is high. When both the outer container and the inner container are made of synthetic resin, the undiluted solution is filled in the undiluted solution storage chamber of the inner container, and the pressurized agent is filled in the pressurized agent storage chamber between the outer container and the inner container. Has higher elasticity due to the pressure of the pressurizing agent, is resistant to impacts such as dropping, and has less influence on the inner container. Furthermore, even if an external container is cracked by an impact, the undiluted solution does not scatter but only the pressurizing agent (compressed gas) escapes. Therefore, the safety is higher. In particular, when the stock solution is filled in the stock solution chamber in a liquid-tight manner and the shoulder and the bottom of the inner container are in contact with the shoulder and the bottom of the outer container, respectively, the elasticity is particularly increased and the impact due to the drop is increased. To become strong.

  Since the safety of the double pressurized container is high as described above, a strong dedicated container for sending dangerous goods is not required, and the container can be easily transported. It also makes it easier for consumers to purchase via the Internet.

  The lid body includes a flange portion that covers upper end surfaces of the outer container and the inner container, and a bottomed cylindrical sealing portion inserted into an opening of the inner container, and an unsealed portion is provided at a bottom of the sealing portion. In the double pressurized container provided with, since the part to be opened is located at the back, the consumer becomes more difficult to open and discharge without a dedicated discharging member. Therefore, the safety is higher. In addition, since it has a flange, it is easy to adhere to the outer container or the inner container.

  The inner container has a flange held on the upper end surface of the outer container, and the flange of the lid inserts an annular disk portion covering the upper end surface of the inner container, and an outer peripheral surface of the flange of the inner container. When the pressurizing agent is filled into the pressurizing agent storage chamber, the pressurizing agent is less likely to be mixed into the undiluted liquid storage chamber. Further, even when the lid is fixed by welding, the lid can be prevented from slipping, and the position of the unsealed portion is not easily shifted.

  When an annular projection is provided on the upper end surface of the inner container or the lower surface of the annular disk portion of the lid, and an annular projection is provided on the upper end surface of the external container or the lower end surface of the outer cylindrical portion of the lid. Is easy to fix the lid and the inner container and the lid and the outer container in one welding step.

  When the upper end surface of the outer container and the upper end surface of the inner container are at the same height, and the flange of the lid covers the upper end surface of the inner container and the upper end surface of the outer container, the lid is placed outside. It is easy to adhere to the container and the inner container, and it is easy to adhere evenly. On the inner periphery of the upper end of the outer container, an annular step is formed, and when the inner container is provided with a flange held by the annular step of the outer container, the upper end surfaces of the outer container and the inner container are removed. It is easy to adjust to the same height, and the lid is easily fixed to the outer container and the inner container evenly. When an inclined portion for welding is formed at the flange of the lid and the base of the sealing portion, both horizontal and vertical fixing and sealing can be obtained with one seal.

  An inner cylinder portion extending downward along the inner surface of the neck of the inner container, a fitting cylinder portion provided concentrically with the inner cylinder portion below the inner cylinder portion, and the inner cylinder; A connecting portion that connects the lower end of the portion and the upper end of the fitting tube portion, and a bottom portion that closes a portion slightly above the lower end of the fitting tube portion, wherein the bottom portion is provided with the unsealed portion. In addition, the accuracy of the dimensions of the inner peripheral surface of the fitting cylinder can be improved. Therefore, the reliability of the seal with the valve is improved.

  An inner cylindrical portion in which the sealing portion extends downward along the inner surface of the neck portion of the inner container; and a fitting cylindrical portion (sealing cylindrical portion) provided concentrically with the inner cylindrical portion inside the inner cylindrical portion. A connecting portion that connects the lower ends of the inner cylindrical portion and the fitting cylindrical portion, and a bottom portion that closes a portion slightly above the lower end of the fitting cylindrical portion, wherein the unsealed portion is provided at the bottom of the fitting cylindrical portion. When the ultrasonic welding is performed by abutting the horn on the upper surface of the lid, the vibration transmitted downward through the inner cylinder part is transmitted to the undiluted solution, so it is transmitted to the unsealed part on the bottom part. Hateful. Therefore, it is possible to prevent the opened portion from being melted or dropped due to the vibration during the ultrasonic welding.

  In a double pressurized container having a connecting portion that connects the lower ends of the inner cylindrical portion and the fitting cylindrical portion, the neck portion of the inner container has a cylindrical upper portion and a tapered portion that becomes thinner downward. When the lower part of the inner cylinder of the lid is tapered so as to fit with the tapered part of the neck of the inner container, the space above the liquid surface of the undiluted solution (head space) becomes smaller, so that the user When starting to use, the stock solution can be discharged smoothly.

  Since the discharge product of the present invention uses the above-described double pressurized container, the effect of the double pressurized container is exhibited. In addition, in the case of a discharge product in which the lid is adhered by welding and the unsealed portion is in contact with the undiluted solution in the internal container, the unsealed portion is cooled by the undiluted solution, so that heat or energy during welding is unsealed. It is possible to prevent transmission of the unsealed portion and prevent problems such as melting of the unsealed portion. Therefore, the unsealed portion can be made thinner to facilitate opening.

  Since the discharge member of the present invention includes the mounting portion detachably mounted on the external container and the opening portion for opening the unsealed portion of the lid, the above-described discharged product is opened with the intention of the consumer. be able to. Further, when the container is emptied by using up the undiluted solution, the discharge member can be removed and the removed discharge member can be replaced with a new discharge product. This contributes to resource saving.

  Since the discharge device of the present invention uses the above-described discharge product and the discharge member, the effects provided by them are exhibited. Dispenser system of the present invention, for example, objects such as hair and skin, product classifications such as cosmetics and pharmaceuticals, ejection forms such as sprays and foams, depending on the use form such as upright or inverted, etc. By matching the shape of the discharge member that can be fitted, erroneous mounting by the consumer can be prevented.

1A and 1B are schematic cross-sectional views each showing an embodiment of a state of sale of a discharge device of the present invention. 2A and 2B are schematic cross-sectional views of the discharge device of FIG. 1 after opening and after use, and FIG. 2C is a main-portion cross-sectional view showing another embodiment. 3A and 3B are cross-sectional views of main parts before and after opening, showing another embodiment of the ejection device of the present invention. 4A, 4B and 4C are sectional views showing another embodiment of the double container, the discharge product and the discharge device according to the discharge device of the present invention. 5A and 5B are cross-sectional views of main parts before and after lid welding, showing another embodiment of the double pressurized container of the present invention. 6A and 6B are cross-sectional views of main parts before and after lid welding, showing still another embodiment of the double pressurized container of the present invention. It is principal part sectional drawing which shows another embodiment of the double pressurized container of this invention.

  First, an outline of the discharge device of the present invention will be described with reference to FIGS. 1A and 1B. The discharge device 10 shown in FIG. 1A includes a double pressurized container 11, a discharge member 12, and a stock solution C and a pressurizing agent (propellant) P filled in the double pressurized container 11. The discharge product 11a is a double pressurized container 11 filled with the stock solution C and the pressurizing agent P. The discharge product 11a and the discharge member 12 are sold as a set before assembly (see FIG. 1A) or in a half-assembled unopened state (FIG. 1B). The discharge product 11a is sold together with the discharge member 12, and is also sold alone for replacement. The ejection member 12 may be sold alone.

  The double pressurized container 11 includes an outer container 13, a flexible inner container 14 housed therein, and a lid 15 that seals the outer container 13 and the inner container 14. There are no valves or pumps. The inside of the inner container 14 is a stock solution storage chamber for filling the stock solution C, and the space between the outer container 13 and the inner container 14 is a pressurized agent housing chamber for filling the pressurized agent P. They are sealed by the lid 15.

  The outer container 13 includes a hemispherical bottom portion 13a, a cylindrical body portion 13b continuous from its upper end, a shoulder portion 13c continuous from its upper end, and a thick cylindrical neck portion 13d protruding upward from its upper end. Become. An external thread 13e is formed on the outer periphery of the neck 13d. The upper end surface 13f of the neck 13d is substantially flat so that the lid 15 can be fixed. Note that an annular protrusion (see reference numeral 36b in FIG. 3A) may be provided on the upper end surface 13f. By making the bottom 13a hemispherical, the pressure resistance is improved, and the shock resistance at the time of dropping is also improved. Therefore, it is safe even when distributed as a single item or delivered by courier.

  Similarly to the outer container 13, the inner container 14 includes a bottom portion 14a, a body portion 14b, a shoulder portion 14c, and a neck portion 14d. The outer surface of the neck 14d of the inner container 14 is in close contact with the inner surface of the neck 13d of the outer container 13. The inner surface of the neck 14d of the inner container 14 is a smooth cylindrical surface. A flange that engages with the upper end surface 13f of the neck 13d of the outer container 13 may be provided at the upper end of the neck 14d of the inner container 14 (see reference numeral 38b in FIG. 3A). The bottom 14a of the inner container 14 is in contact with the bottom 13a of the outer container 13, and is supported so that the inner container 14 does not lower when filling with a pressurizing agent or fixing the lid 15.

  Each of the outer container 13 and the inner container 14 is made of a synthetic resin, in particular, a thermoplastic resin such as polyethylene terephthalate, polyethylene naphthalate, polyethylene, or polypropylene. , And blow molding the lower side of the shoulders 13c and 14c at the same time. In particular, an injection blow molding method in which a preform having a predetermined shape is injection-molded and then blow-molded is preferable. By performing the blow molding at the same time as described above, the outer container 13 and the inner container 14 can be formed into substantially the same shape except for the neck portions 13d and 14d. The outer container 13 is made thick to have pressure resistance, and the inner container 14 is made thin to have flexibility or breakability. When the outer container 13 is blow-molded using a preform in which fine bubbles are mixed, the bubbles are stretched and the outer container 13 becomes white and opaque. Thereby, the shape of the inner container 14 can be hidden. In this case, since no pigment is contained, recycling is easy.

  The lid 15 includes a bottomed cylindrical sealing portion 15a inserted into the neck portion 14d of the inner container 14, and an annular flange 15b connected to the upper end thereof. At the bottom 15c of the sealing portion 15a, an unsealed portion 15d having a reduced thickness is provided. The unsealed portion 15d can be formed by an annular thin portion or a weakened line such as an annular groove so as to be unsealed by an unsealing portion 27 described later. Further, the sealing portion 15a and the unsealed portion 15d may be partially hardened by cooling conditions at the time of molding or the like to suppress stretching at the time of unsealing and facilitate breakage. The outer peripheral surface of the cylindrical portion of the sealing portion 15a can discharge air in the inner container 14 when the cover 15 is attached to the inner container neck 14d between the inner surface of the inner container neck 14d and the inner surface of the inner container neck 14d. In addition, it is preferable that the fitting state is such that the undiluted solution C in the inner container 14 can be liquid-sealed. Further, the inner peripheral surface of the cylindrical portion of the sealing portion 15a preferably has a smooth cylindrical surface so as to form a seal with the valve when opening the unsealed portion 15d so that the undiluted solution does not leak. The diameter may be reduced to a tapered shape. The flange 15b of the lid 15 is filled with the undiluted solution C or the pressurizing agent P, and is then subjected to ultrasonic welding, laser welding, high-frequency welding, or the like, to form the upper end surface 13f of the neck 13d of the outer container 13 and the upper end surface of the neck 14d of the inner container 14. 14e, and sealed at the same time.

  As the material of the lid 15, a thermoplastic resin having a high thermal bonding property with the outer container 13 or the inner container 14 is used. When the lid 15 is fixed by welding, the same material as the outer container 13 or the inner container 14 is preferably used. The lid 15 may be adhered with an adhesive in addition to welding. The contents (undiluted solution C and pressurized agent P) are sealed by sealing the undiluted solution storage room and the pressurized agent storage room with the lid 15 and fixing the undiluted solution storage room and the pressurized agent storage room to one or both of the internal container 14 and the external container 13. It can be safely stored for a long time without leakage.

  As the undiluted solution C, skin products such as face wash, cleanser, bath additive, moisturizer, cleansing agent, sunscreen, lotion, shaving agent, depilatory, antiperspirant, disinfectant, disinfectant, insect repellent, etc., treatment agent Human products such as hair products such as styling agents and hair dyes; food products such as whipped cream; household products such as deodorants, fragrances, insecticides, insect repellents, pollen removers, and bactericides. However, it is not limited to these uses. It is preferable that the stock solution C is brought into contact with the inner surface side of the opened portion 15d. Thereby, the unsealed portion 15 d is cooled by the undiluted solution C when the lid 15 is welded to the outer container 13 or the inner container 14. Therefore, the problem that the opened part 15d is melted by heat can be solved.

  As the pressurizing agent P, a compressed gas such as nitrogen gas, compressed air, or carbon dioxide gas is preferable. The pressure in the double pressurized container is increased by 0.1 to 0.5 MPa (25 ° C., gauge pressure) with a pressurizing agent, and particularly 0.3 to 0.5 MPa (25 ° C., gauge pressure) equivalent to that of a carbonated beverage. It is preferred that Further, the capacity of the outer container is preferably 30 to 500 ml. The capacity of the inner container (stock solution storage chamber) 14 is preferably about 20 to 300 ml. The capacity of the pressurized agent storage chamber is preferably about 10 to 200 ml.

  As described above, the double pressurized container 11 has a small number of parts and does not have an operating portion such as a valve, so that it can be manufactured at low cost. And since the pressure of the double pressurized container 11 is low and is about the same as that of carbonated drinks, it is safe when a consumer carries it or when a distributor distributes it. Even if the external container 13 is cracked, the undiluted solution C does not leak, only the pressurizing agent P leaks. Therefore, it is more secure.

  The discharge member 12 is mounted on a cap (mounting portion) 20 that is screwed with the male screw 13 e of the neck portion 13 d of the outer container 13, a valve (valve) 21 held by the cap 20, and a stem 22 of the valve 21. An operation button (operation unit) 23 is provided. The cap 20 has a bottomed cylindrical shape, and has an internal thread formed on the inner peripheral surface. A shallow bottomed cylindrical valve holding portion 20b for holding the upper portion of the housing 24 of the valve 21 is provided on the upper bottom 20a so as to protrude upward, and a hole 20c for passing the stem 22 is formed at the center thereof.

  The valve 21 includes a bottomed cylindrical housing 24, a stem 22 housed therein so as to be vertically movable, a spring 25 for urging the stem 22 upward, and an upper end of the housing 24 and a valve holding portion 20 b. It has a known basic structure consisting of a stem rubber 26 interposed between upper and lower surfaces. Further, in this embodiment, a thin tubular opening 27 protruding downward is provided at the lower end of the housing 24, and a seal member 28 such as an O-ring is mounted on the outer periphery of the lower portion of the housing 24. The lower end 27a of the opening portion 27 is sharpened so that the opening portion 15d can be easily broken. The seal member 28 seals between the housing 24 and the inner peripheral surface of the sealing portion 15a of the lid 15 at the time of opening and after opening.

  At the time of distribution and sale, the double pressurized container 11 and the discharge member 12 are temporarily connected by attaching the cap 20 to the external container 13 as shown in FIG. Thereby, the purchasing consumer can easily perform the opening operation. In this state, the seal member 28 is not in contact with the inner surface of the sealing portion 15a. As shown in FIG. 1A, the ejection product 11a and the ejection member 12 may be sold and distributed as a set without being assembled.

  When the user purchases and uses the discharge device 10, first, the cap 20 is screwed. Thereby, the sealing member 28 seals between the lid 15 and the housing 24. Then, when the cap 20 is further screwed in, the lower end 27a of the unsealing portion 27 of the housing 24 pierces the unsealed portion 15d of the lid 15 to communicate the inside of the housing 24 with the undiluted solution storage chamber in the inner container 14 (see FIG. 2A). ).

  When the opened portion 15d is broken, the undiluted solution C may leak from a gap between the inner periphery of the opened portion 15d and the outer periphery of the opened portion 27. However, since the space between the sealing portion 15a and the housing 24 is sealed by the sealing member 28, the undiluted solution C remains in the sealing portion 15a and does not leak to the outside. Further, the internal pressure acts to push up the housing 24, but since the cap 20 and the external container 13 are screwed together, the ejection member 12 is prevented from jumping out.

  Since the undiluted solution C in the undiluted solution storage chamber is pressurized by the pressurizing agent P via the internal container 14, when the user presses the operation button 23 attached to the stem 22, the stem 22 descends and the stem rubber 26 is moved. The flexure and the opening of the stem are opened, and the stock solution C in the inner container 14 is discharged to the outside via the opening portion 27, the housing 24, the stem 22, and the operation button 23. When the pressing is stopped, the stem 22 rises, and the discharge is stopped. Since the pressurized agent storage chamber filled with the pressurized agent P is closed and is not in communication with the outside or the undiluted solution storage chamber, the pressurized agent P does not leak to the outside.

  When the amount of the undiluted solution C in the inner container 14 decreases, the inner container 14 contracts as shown by the imaginary line in FIG. 2A. After the entire amount is discharged, as shown in FIG. 2B, the walls of the inner container 14 are in close contact with each other and become flat. Further, since the inner container 14 is formed by blow molding, the shoulder 14c from the lower end of the neck 14d is thicker than the trunk 14b. Therefore, the shoulder 14c is finally deformed and pushed up into the neck 14d. In this state, the cap 20 is removed from the outer container 13. Since the double pressurized container 11 uses a compressed gas as the pressurizing agent P, the pressure decreases to about 0.01 to 0.2 MPa (gauge pressure) when the stock solution C is exhausted. As shown in FIG. 2C, a spike 15e extending downward is provided at the bottom of the sealing portion 15a to automatically release the pressurizing agent P when the inner container 14 contracts and the shoulder portion 14c is pushed up. It is preferable that holes be formed in the holes. Thus, the pressurizing agent P in the outer container 13 can be safely discharged, and the outer container 13 can be crushed to reduce its volume and be discarded. The removed discharge member 12 is mounted on a new double pressurized container 11 and reused. It is preferable that a plurality of spikes 15e project downward.

  Next, another embodiment of the ejection device will be described with reference to FIGS. 3A and 3B. The double pressurized container 31 and the discharge member 32 of the discharge device 30 of FIG. 3A have the same basic structure as the double pressurized container 11 and the discharge member 12 of FIGS. 1A and 1B, and are partially modified. It is.

  The double pressurized container 31 includes an outer container 33, an inner container 34, and a lid 35. On the upper end surface 36a of the neck portion 36 of the outer container 33, an annular projection 36b for forming a seal point by increasing the contact pressure with the lid 35 during ultrasonic welding is formed. An annular protrusion may be provided on the lid 35 side, or both may be provided. A plurality of inclined portions 36c are provided on the inner side of the upper end surface 36a, and serve as a space for accommodating the resin pieces formed by cooling the resin melted during ultrasonic welding so as not to protrude. The upper end surface 38a of the neck portion 38 of the inner container 34 protrudes from the upper end surface 36a of the outer container 33, and the protruding portion is formed with a flange 38b that engages with the upper end surface 36a of the outer container 33. The thickness (radial dimension) of the flange 38 b is about ３ to の of the thickness of the neck 36 of the outer container 33. An annular projection 38c for welding for forming a seal point by increasing the contact pressure with the lid 35 is also formed on the upper end surface 38a of the neck portion 38 of the inner container 34. Such an annular projection may be provided on the lid 35 side or on both sides.

  On the lower surface of the flange 38b of the inner container 34, a lateral groove 38d for filling a pressurizing agent is formed which extends in the radial direction. Further, on the outer peripheral surface of the neck portion 38 of the inner container 34, a vertical groove 38e continuous with the horizontal groove 38d is formed. The upper part of the neck 38 of the inner container 34 is tightly fitted to the inner peripheral surface of the neck 36 of the outer container 33 except for the vertical groove 38e.

  The lid 35 includes a bottomed cylindrical sealing portion 39 inserted into the neck portion 38 of the internal container 34, and an annular flange 40 connected to the upper end thereof. Between the inner surface of the neck portion 38 of the inner container 34 and the outer surface of the sealing portion 39, air can be discharged from the inner container 34 when the lid 35 is attached to the neck portion 38 of the inner container, and It is preferable that the fitting state be such that the undiluted solution in 34 can be liquid-sealed. At the center of the bottom of the sealing portion 39, a cylindrical fitting cylindrical portion 41 protruding downward is provided. A bottom portion 42 is provided slightly above the lower end of the fitting tubular portion 41, and an opening portion 44 surrounded by an annular weakening line 43 is provided at the center of the bottom portion 42. The weakening line 43 has a sufficient sealing function when not opened, and has a shape that can be easily broken. In this embodiment, the weakening line 43 is formed by a V groove.

  The reason why the bottom portion 42 is provided slightly above the lower end of the fitting tubular portion 41 is to increase the rigidity of the bottom portion 42 and to easily break the weakening line 43. The reason why the diameter of the fitting cylindrical portion 41 is smaller than the diameter of the sealing portion 39 is to increase the molding accuracy of the inner surface of the fitting cylindrical portion 41 and to receive the internal pressure surrounded by the seal member 45 of the discharge member 32. This is for reducing the upward force applied to the lid 35 by reducing the area. This is to secure a space for accommodating the valve holding portion 20b that projects downward. The lower end of the fitting cylinder 41 may be cylindrical, but a groove may be provided between the lower end and the bottom 42 so that gas does not accumulate, or a spike for penetrating the inner container 34 may be provided. Good (see reference numeral 15e in FIG. 2C).

  The flange 40 of the lid 35 includes an annular disk portion 46 extending radially outward from the upper end of the sealing portion 39, and an outer cylindrical portion 47 extending downward from the outer edge of the annular disk portion 46. The lower surface of the annular disk portion 46 is a portion that comes into contact with and seals with the upper end surface 38a of the neck portion 38 of the inner container 34, and the lower surface of the outer cylinder portion 47 is brought into contact with and seals with the upper end surface 36a of the neck portion 36 of the outer container 33. Part. Also in this embodiment, the surfaces to be sealed are simultaneously joined and sealed by ultrasonic welding or the like.

  The discharge member 32 includes a cap 20, a valve 21 held by the cap 20, and an operation button (see FIG. 4C) mounted on the stem 22 of the valve 21. In this embodiment, a cylindrical valve holding portion 20b protrudes downward from the center of the cap 20. The valve 21 includes a housing 24, a stem 22 housed therein to be vertically movable, a spring 25 for urging the stem 22 upward, and a stem rubber 26. An annular groove is formed on the outer periphery of the housing 24, and a sealing member 45 such as an O-ring is housed in the annular groove. Since these are substantially the same as the embodiment of FIGS. 1A and 1B, detailed description will be omitted.

  In this embodiment, the lower end of the housing 24 is an unsealing portion 27 formed of a substantially conical projection. As shown in FIG. 3B, the opening portion 27 is formed with a communication hole 48a and a vertical groove 48b that communicate the inside of the housing 24 and the inside of the internal container 34 after opening. The communication hole 48a and the vertical groove 48b may be provided at one place, but a plurality of communication holes may be provided. At the lower end 27a of the unsealing portion 27, an end surface that approaches or contacts the upper surface of the unsealed portion 44 is formed. As shown in FIG. 3A, the position of the end surface is a position where the cap 20 comes into contact with the unsealed portion 44 when the cap 20 is screwed into the male screw of the external container 33 about once or twice. Therefore, at the time of shipping, the discharge member 35 and the double pressurized container 31 can be connected in a sealed state without loosely screwing the cap 20 to break the opened portion 44.

  When used by the user, the cap 20 can be opened simply by rotating the cap 20 several times. When the cap 20 is rotated, the entire cap 20 and the valve 21 are lowered, and as shown in FIG. 3B, the end surface 27a of the unsealing portion 27 pushes the unsealing portion 44. If, for example, only one weakening line 43 is formed or the V-groove is made shallow, the unsealed portion 44 does not fall off at the time of unsealing, but remains hanging from the bottom portion 42. Therefore, there is an advantage that the communication hole 48a is not closed by the opened portion 44 to be opened. If a plurality of communication holes 48a are provided, even if one location is closed, communication can be performed with another communication hole 48a.

  The double container 50 shown in FIG. 4A includes an external container 33 and an internal container 34 housed therein. The lid has not been provided yet. In this embodiment, the bottom 33a of the outer container 33 includes an annular flat surface 51 and a dome-shaped protruding portion 52 provided at the center thereof and protruding upward. The inner container 34 also has a bottom 34a similar to the outer container 33. It may be a petaloid type. This can be stably mounted as it is on a flat surface such as a table. An annular support portion 53 is provided on the outer periphery of the neck portion 36 of the outer container 33. The support portion 53 is held by a nail, a holder, or the like in manufacturing processes such as transport of the double container 50, filling of the undiluted solution, filling of the pressurizing agent, and welding of the lid. The other points are substantially the same as the double container of FIG. 1A.

  The discharge product 31a shown in FIG. 4B has a stock solution C filled in the inner container 34 (stock solution storage chamber) of the double container 50 shown in FIG. A pressurizing agent (propellant) P is filled, and the upper end openings of the inner container 34 and the outer container 33 are sealed with a lid 35. The lid 35 is the same as the lid 35 of FIG. 3A, and includes an unsealed portion 44 at the bottom 42 of the fitting cylindrical portion of the lid 35. The flange 40 of the lid 35 is ultrasonically welded to the upper end of the neck 36 of the outer container 33 and the upper end of the neck 38 of the inner container 34. Adhesion may be used instead of ultrasonic welding.

  The discharge product 31a is sealed with the lid 35, has no valve for opening, and has the unsealed portion 44 inside, so that the safety during transportation is high. In particular, since the outer container 33 and the inner container 34 are made of synthetic resin, and the inner container 34 is surrounded by the pressurizing agent C and further surrounded by the outer container 33, the elasticity of the discharged product 31a is high, and Hard to break. Further, since the unsealed portion 44 is inside, there is little possibility that the unsealed portion 44 is broken by mistake, which is more secure.

  The ejection device 30 of FIG. 4C is obtained by attaching the ejection member 32 to the ejection product 31a of FIG. 4B, and is shown in an opened state. The ejection member 32 includes a cap 20, a valve 21 held by the cap 20, and an operation button (actuator) 23 attached to a stem 22 of the valve 21. The cap 20 and the valve 21 are substantially the same as the cap 20 and the valve 21 of the ejection member 32 of FIG. 3A. The operation buttons 23 are substantially the same as the operation buttons 23 in FIG. 1A.

  As described above, in the discharge device of the present invention, after the stock solution storage chamber is emptied, the discharge member can be removed and replaced with a new discharge product. However, if the ejection member used for spraying the insecticide is attached to the ejection product of the hair care product, there is a risk of harm to health. Further, different types of stock solutions may be mixed to cause unexpected chemical reactions. The dispenser system of the present invention can prevent the above problem by preventing a specific group of discharge members from being mounted on another group of discharge products.

  For example, by changing the size and shape of the part where the sealing part of the lid and the housing are fitted, and changing the inner diameter of the cap and the pitch of the screw for each type of stock solution, different types of reuse are prevented. To do. In addition, a combination in which the case where the risk is high is surely prevented and the case where the risk is low is permitted is also conceivable.

  In the double pressurized container 11 of FIG. 1, the upper end surface 13f of the neck 13d of the outer container 13 and the upper end surface 14e of the neck 14d of the inner container 14 are at the same height, and the flange 15b of the lid 15 is When ultrasonic welding is performed by contacting the upper ends 13f and 14e of the necks 13d and 14d with the horn (reference numeral H in FIG. 5A) on the upper surface of the flange 15b, through the same thickness portion of the flange 15b. Vibration is transmitted. Therefore, the vibration is transmitted substantially evenly, and both can be welded to the same degree. There is no problem that only one side is welded and the other is insufficiently welded.

  The double pressurized container 55 in FIG. 5A includes an external container 13, an internal container 14, and a lid (plug) 15, similarly to the double pressurized container 11 in FIG. 1A. The inside of the inner container 14 is the stock solution storage chamber Sc, and the space between the outer container 13 and the inner container 14 is the pressurized agent storage chamber Sp. The outer container 13 is substantially the same as the outer container 33 of FIG. 4, and has a bottom, a body, a shoulder 13c, and a neck 13d. However, in this double pressurized container 55, an annular step 13h is formed on the inner peripheral side of the upper end face 13f of the neck 13d of the outer container 13. In addition, it can also be considered that the projecting wall 13i is provided on the outer peripheral side of the upper end surface.

  On the other hand, the inner container 14 is substantially the same as the inner container 34 of FIG. 4, and comprises a bottom, a torso, a shoulder 14c and a neck 14d. Also in this internal container 14, a flange 14f is provided on the outer periphery of the upper end of the neck 14d. The vertical thickness of the flange 14f is the same as the depth of the annular step 13h, and the outer diameter of the flange 14f is smaller than the inner diameter of the annular step 13h. Thereby, the flange 14f can be engaged with the annular step 13h. In the engaged state, the height of the upper surface 13f of the neck 13d of the outer container 13 and the upper surface 14e of the neck 14d of the inner container 14, that is, the height of the upper surface of the flange 14f are the same.

  An annular projection 13g is formed on the upper end surface 13f of the neck 13d of the outer container 13 to increase the contact pressure with the lid 15 during ultrasonic welding to form a seal point. An annular projection 14g for forming a seal point by increasing the contact pressure with the lid 15 during ultrasonic welding is also formed on the upper end surface 14e of the neck 14d of the inner container 14.

  The lid 15 includes a bottomed cylindrical sealing portion 15a inserted into the neck 14d of the inner container 14, and a disk-shaped flange 15b extending outward from the upper end thereof. The sealing portion 15a includes an upper inner cylindrical portion 15a1, a lower thin cylindrical fitting cylindrical portion (valve accommodating portion) 15a2, and a bottom portion 15c. The inner peripheral surface of the fitting cylindrical portion 15a2 is a cylindrical surface, and is a portion where the seal member (reference numeral 28 in FIG. 1A, reference numeral 45 in FIG. 3A) comes into close contact after the discharge member is fitted. The bottom portion 15c is provided with a thick opened portion 15d. The unsealed portion 15d is surrounded by a weakened line 15f such as an annular thin portion or an annular groove to facilitate opening at the unsealing portion (reference numeral 27 in FIGS. 1A and 3B). In addition, a reinforcing portion (reinforcing rib) 15g is provided on the bottom portion 15c, and a weakening line is not provided at that portion. When the opening portion is broken, the reinforcing portion 15g is connected to the bottom portion 15c so as to hang. However, the opened portion 15d may be dropped without providing the reinforcing portion 15g.

  In the double pressurized container in FIG. 5A, the unsealed portion 15d is thicker than the bottom portion 15c and protrudes upward. Thereby, when the pressure receiving portion 15d1 on the upper surface of the unsealed portion 15d is pressed by the unsealing portion (reference numeral 27 in FIG. 3) of the ejection member, the unsealed portion 15d is not easily deformed and easily broken at the weakening line 15f.

  As described above, since the upper end surface 13f of the outer container 13 and the upper end surface 14e of the inner container have the same height, the thickness (vertical dimension) of the flange 15b of the lid 15 can be made uniform. Therefore, when ultrasonic welding is performed by contacting the horn H with the upper surface of the lid 15, the contact pressure between the flange 15 b and the upper end surface 13 f of the outer container 13 and the contact pressure between the flange 15 b and the upper end surface 14 e of the inner container 14. Can be made substantially the same, and as shown in FIG. 5B, the welding of both welding portions Y1 and Y2 can be made the same. That is, when one is welded, the other is not sufficiently welded. Since the flange 14f of the inner container 14 is supported by the annular step 13h of the outer container, the force pressing the horn H does not escape.

  In the double pressurized container 55 of FIG. 5A as well, a lateral groove 14h for filling the pressurized agent that extends in the radial direction is formed on the lower surface of the flange 14f of the inner container 14. Further, a vertical groove 14i which is continuous with the horizontal groove 14h is formed on the outer peripheral surface of the neck 14d of the inner container 14. The upper part of the neck 14d of the inner container 14 is tightly fitted to the inner peripheral surface of the neck 13d of the outer container 13 except for the vertical groove 14i. In the outer peripheral surface of the flange 14f of the inner container 14, a cutout groove 14f1 for filling the pressurizing agent is formed in a portion corresponding to the horizontal groove 14h and extending in the vertical direction.

  The double pressurized container 56 shown in FIG. 6A does not provide the outer container 13 or the inner container 14 with an annular projection for increasing the contact pressure with the lid 15 at the time of ultrasonic welding to form a seal point. It is provided on the lid 15 side. That is, the upper end surface 13f of the neck portion 13d of the outer container 13 and the upper end surface 14e of the flange 14f of the inner container are flattened, and a seal is provided between the lower surface of the flange 15b of the lid 15 and the upper end surface 13f of the outer container 13. An annular projection 15b1 for making a point is provided. Furthermore, an inclined portion (for forming a seal point) between the lower surface of the flange 15b of the lid 15 and the base (base portion) of the outer peripheral surface of the sealing portion 15a between the upper inner edge of the neck 14d of the inner container 14 ( (A fillet portion) 15b2. Other points are the same as those of the double pressurized container 55 of FIG. 5A.

  In the double pressurized container 56 thus configured, a welded portion Y1 is formed between the upper end surface 13f of the outer container 13 and the flange 15b of the lid 15 as shown in FIG. 6B after the ultrasonic welding. A welding portion Y3 is formed between the inclined portion 15b2 of the lid 15 and a corner of the inner periphery of the upper end of the inner container 14. The welded portion Y3 formed by the inclined portion 15b2 is welded on the inner container 14, the horizontal surface (the upper end surface 14e), and the vertical surface (the inner peripheral surface), so that the weld strength and the sealability are high.

  In the double pressurized container 58 shown in FIG. 7, a substantially cylindrical sealing portion 15a extends downward, and a fitting cylindrical portion 15a2 is provided concentrically inside the sealing portion 15a. The fitting cylindrical portion 15a2 rises upward from the center of the bottom of the sealing portion 15a and opens at the upper end. The upper portion of the sealing portion 15a has a substantially cylindrical shape, and the lower portion 15a3 has a tapered shape tapering downward. However, it may be cylindrical from the upper part to the lower part.

  On the other hand, the neck portion 14d of the inner container 14 is formed so as to be substantially in close contact with the outer peripheral surface of the sealing portion 15a, and has a cylindrical upper portion 14d1, a tapered portion 14d2 tapering downward, and a lower end portion. And a cylindrical portion 14d3 extending downward. The lower end of the cylindrical portion 14d3 is continuous with the shoulder 14c. That is, the upper part of the tapered part 14d2, the cylindrical part 14d3, and the shoulder part 14c of the neck part 14d of the inner container 14 forms a constricted part.

  The point that the opened portion 15d surrounded by the weakening line 15f is provided on the bottom portion 15c of the fitting tubular portion 15a2 is the same as the double pressurized container 11 of FIGS. 1A and 3A. However, in the double pressurized container 58 of FIG. 7, the pressure receiving portion 15d1 is provided on the upper surface of the opened portion 15d. Therefore, the unsealed portion 15d is not easily deformed, and the unsealed portion 15d of the ejection member (reference numeral 27 in FIG. 1A) is easily broken. In addition, a notch 15 h is provided on the outer periphery of the upper surface of the lid 15. When the horn is pressed against the upper surface of the lid 15 and ultrasonically welded to the notch 15h, the vibration of the horn is easily concentrated on the annular projection 13g at the upper end of the neck of the outer container 13.

  The lid body 15 in FIG. 7 has a fitting cylindrical portion 15a2 provided inside the sealing portion 15a, and a lower cylindrical portion 15a5 extending downward from the lower end 15a4 of the tapered lower portion 15a3 and the fitting cylindrical portion 15a2. Is connected to the lower end by a connecting portion 15a6. The unsealing portion 15d is provided on a bottom portion 15c which closes a little above the lower end of the lower cylindrical portion 15a5. Therefore, when ultrasonic welding is performed by pressing the horn against the upper surface of the lid 15, the vibration of the horn easily passes through the sealing portion 15a and flows from the lower end 15a4 to the stock solution C side (see arrow B). In addition, since the opening portion 15d is provided above the connecting portion 15a6, the vibration is not easily transmitted to the opening portion 15d. Therefore, dissolution and penetration of the weakening line 15f are prevented.

  The double pressurized container 58 shown in FIG. 7 has a constricted portion formed of a tapered portion 14d2 and a cylindrical portion 14d3 at the neck portion 14d of the inner container 14, and the constricted portion is in close contact with the sealing portion 15a of the lid 15. Therefore, when the stock solution C is filled in the internal container 14, the gas phase Gp (head space) is reduced. Therefore, when the consumer starts to use the stock solution C, the stock solution C is vigorously discharged and scattered by the gas compressed in the gas phase part Gp. In addition, the stock solution C is mixed with the gas at the time of discharge and the stock solution C is discharged discontinuously. Problems such as dropping are less likely to occur, and the discharge becomes smooth. Particularly, a post-foamable gel composition or a post-foamable cream composition containing a foaming agent having a boiling point of 10 to 35 ° C such as isopentane or 1-chloro-3,3,3-trifluoropropene in a stock solution is used. Even in the case of filling, since the gas phase portion Gp is small, foaming immediately after filling can be prevented, and the liquid can be discharged in a gel or cream form.

  The preferred embodiments of the present invention have been described above, but the present invention is not limited to these embodiments, and various modifications can be made within the scope of the invention. In the above embodiment, the lid is welded to both the inner container and the outer container. However, the lid may be fixed to either one and simply sealed with an O-ring or the like. Further, in the embodiment, the inner container and the outer container are manufactured by blow molding at the same time. However, the inner container and the outer container may be manufactured separately, and then the inner container may be housed in the outer container. Within the container, the inner container may be blow molded. As shown in FIG. 3A, the annular projections 38c and 36b capable of reliably securing the seal point may be provided on the outer container 13, the inner container 14, and the lid 15 of FIG. 1A.

  In the double pressurized container 58 of FIG. 7, the neck 14d of the inner container 14 and the lower portion 15a3 of the sealing portion 15a of the lid 15 may be formed into a straight cylindrical shape. However, it is preferable to provide a constricted portion at the neck 14d of the inner container 14 and make the lower portion 15a3 of the sealing portion 15a of the lid 15 tapered, because the diameter and the volume of the gas phase portion Gp can be reduced.

Reference Signs List 10 Discharge device 11 Double pressurized container 11a Discharge product 12 Discharge member C Undiluted solution P Pressurizing agent 13 External container 13a Bottom 13b Body 13c Shoulder 13d Neck 13e Male screw 13f Top end surface 14 Internal container 14a Bottom 14b Body 14c Shoulder 14d Neck 14e Upper end surface 15 Lid 15a Sealing part 15b Flange 15c Bottom 15d Unsealed part 15e Spike 20 Cap 20a Upper bottom 20b Valve holding part 20c (through stem) hole 21 Valve 22 Stem 23 Operation button 24 Housing 25 Spring 26 Stem rubber 27 Opening portion 27a Lower end 28 Seal member 30 Discharge device 31 Double pressurized container 31a Discharge product 32 Discharge member 33 External container 33a Bottom portion 34 Internal container 34a Bottom portion 35 Lid 36 Neck 36a Top end surface 36b Annular protrusion 36c Inclined surface 38 Neck 38a Upper end surface 38b Flange 38c annular projection 38d lateral groove 38e vertical groove 39 sealing portion 40 flange 41 fitting cylinder portion 42 bottom portion 43 of the fitting cylinder portion weakened line 44 unsealed portion 45 sealing member 46 annular disk portion 47 outer cylinder portion 48a communication hole 48b Vertical groove 50 Double container 51 Flat surface 52 Projecting portion 53 Supporting portion 55 Double pressurized container H Horn 13g Annular projection 13h Annular step 13i Projecting wall 14f Flange 14f1 Notch groove 14g Annular projection 14h Horizontal groove 14i Vertical groove 15a1 Inner cylinder Part 15a2 Fitting cylinder part 15a3 Lower part 15a4 of the sealing part Lower part 15a5 of the sealing part Lower cylinder part 15a6 Connecting part 15b1, 15b3 Annular projection 15b2 Inclined part 15c Bottom part 15d Unsealed part 15f Weak line 15g Reinforcement part Y1, Y2, Y3 Welding parts 56, 58 Double pressurized container 14d1 Upper part 14d2 Tapered part 14d3 Cylindrical part 15h Notch Gp gas phase B vibration is transmitted arrow

Claims (15)

An outer container,
A flexible inner container housed inside the outer container,
The outer container and the inner container are fixed to at least one of the outer container and the lid for sealing both the outer container and the inner container, and
The inside of the internal container is a stock solution storage chamber for filling the stock solution,
A pressurized agent storage chamber for filling the pressurized agent between the outer container and the inner container,
The lid includes an unsealed portion for opening the undiluted solution storage chamber,
Double pressurized container. The lid body includes a flange covering the upper end surfaces of the outer container and the inner container, and a bottomed cylindrical sealing portion inserted into the opening of the inner container,
The double pressurized container according to claim 1, further comprising an unsealed portion provided at a bottom of the sealing portion. The inner container includes a flange held on an upper end surface of the outer container,
The flange of the lid includes an annular disk portion that covers an upper end surface of the inner container, and an outer cylinder portion that inserts the outer peripheral surface of the inner container flange,
The double pressurized container according to claim 2. An annular projection is provided on the upper end surface of the inner container or the lower surface of the annular disk portion of the lid,
An annular projection is provided on the upper end surface of the outer container or the lower end surface of the outer cylindrical portion of the lid,
The double pressurized container according to claim 3. The upper end surface of the outer container and the upper end surface of the inner container are at the same height,
A flange of the lid covers an upper end surface of the inner container and an upper end surface of the outer container,
The double pressurized container according to claim 2. An annular step is formed on the inner periphery of the upper end of the outer container,
The inner container includes a flange held on the annular step of the outer container,
The double pressurized container according to claim 5.   The double pressurized container according to claim 5, wherein an inclined portion for welding is formed in a flange of the lid and a base of the sealing portion. An inner cylinder portion extending downward along an inner surface of a neck portion of the inner container, a fitting cylinder portion provided concentrically with the inner cylinder portion below the inner cylinder portion, and the inner cylinder; A connecting portion that connects the lower end of the portion and the upper end of the fitting tube portion, and a bottom portion that closes a portion slightly above the lower end of the fitting tube portion,
The double pressurized container according to any one of claims 2 to 7, wherein the unsealed portion is provided at a bottom portion of the fitting tube portion. The sealing portion, an inner cylindrical portion extending downward along the inner surface of the neck portion of the inner container, a fitting cylindrical portion provided concentrically with the inner cylindrical portion inside the inner cylindrical portion, and the inner cylindrical portion. A coupling portion that connects the lower ends of the fitting tube portions, and a bottom portion that closes a portion slightly above the lower end of the fitting tube portion,
The double pressurized container according to any one of claims 2 to 7, wherein the unsealed portion is provided at a bottom portion of the fitting tube portion. The neck of the inner container has a cylindrical upper portion and a tapered portion that becomes thinner downward,
The double pressurized container according to claim 9, wherein a lower portion of the inner cylindrical portion of the lid fits with a tapered portion of a neck portion of the inner container. A double pressurized container according to any one of claims 1 to 9,
A stock solution filled in the stock solution storage chamber,
And a pressurized agent filled in the pressurized agent storage chamber. The fixing of the lid is welding,
The discharge product according to claim 11, wherein the unsealed portion is in contact with the stock solution in the stock solution storage chamber. A discharge member used for the discharge product according to claim 11 or 12,
A mounting portion detachably mounted on the external container,
An opening portion for opening the unsealed portion of the lid,
A valve that communicates with the internal container through the opening portion and switches communication / interruption with the outside;
An operating unit attached to the valve and discharging an undiluted solution by operation.   A discharge device comprising: the discharge product according to claim 11 or 12; and the discharge member according to claim 13, which is detachably attached to the discharge product. 15. A group of a first ejection device comprising the ejection device according to claim 14, wherein the first solution is filled in the stock solution storage chamber;
15. A second discharge device group comprising the discharge device according to claim 14, wherein the raw liquid storage chamber is filled with a second liquid concentrate different from the first liquid concentrate.
The discharge members of the discharge devices of the first and second groups can be mounted on the same group of discharge products and cannot be mounted on the discharge products of other groups.
Dispenser system.

Images