JP6236247B2 - Discharge container - Google Patents

Description

  The present invention relates to a discharge container, particularly a discharge container having a small number of parts and a simple structure.

  Patent Document 1 discloses a simple type aerosol sprayer in which a stopper made of a soft elastic material such as rubber is attached to an upper end opening of a container main body, and a hard injection pipe serving as an operation rod is press-fitted into the stopper from above. Is disclosed. This has a small number of parts and a simple structure. However, since the plug is exposed to the outside air, the plug is only interposed between the inside filled with the propellant and the outside air. Therefore, the propellant permeates through the plug and decreases with time. In addition, when filling the propellant with the under cup, the filling pressure is applied directly from the inside of the container main body to the stopper and the injection pipe, and it is necessary to hold the injection pipe so that it does not come off. is there.

  Patent Document 2 discloses a double aerosol container in which a flexible synthetic resin inner container (inner bag) is accommodated in a pressure-resistant metal outer container. In this double aerosol container, the mouth part of the outer container and the mouth part of the inner container are overlapped, a stopper made of synthetic resin is fitted in the mouth part, the container is closed, and an aerosol valve is attached to the stopper body. (Refer FIG. 5, FIG. 7 of patent document 2). Therefore, the undercup filling of the propellant is easy. In addition, gas permeability is imparted to the plug body and the inner container to prevent the plug body from coming off when the internal pressure rises abnormally.

Japanese Utility Model Publication No. 60-132865 Japanese Patent Laid-Open No. 10-147383

  The aerosol container of Patent Document 1 has few parts and a simple structure, but the propellant gas permeates through the plug, so that the propellant decreases over time while being stored for a long time, and is in a discharge state. There is a problem that becomes worse or cannot be used. Furthermore, the undercup filling of the propellant is complicated. The aerosol container of Patent Document 2 can be easily filled with a propellant undercup, but has a large number of parts and a complicated structure.

  An object of the present invention is to provide a discharge container that has a small number of parts, has a simple structure, is difficult to leak a propellant over time, and can be filled with an under cup.

Dispensing container of the present invention, a metallic outer container having a cylindrical neck portion at the upper end, is accommodated through a gap between the outer container into the outer container, a cylindrical mouth portion of the upper end outer It consists of a thin metal collapsible metal container stacked on the mouth of the container, and an elastic material or a soft material that closes the mouth of the outer container and the inner container and has a sealing action in close contact with other parts. A lower cylindrical portion that includes a stopper and a metal annular cover cap that fixes the stopper to the outer container, and the stopper closely fits the disc portion and the inner periphery of the mouth of the inner container. And an upper cylindrical portion for inserting a stem that protrudes outward from the central opening of the cover cap, and a flange portion that extends outward from the outer periphery of the upper end of the lower cylindrical portion, and the inner container is the cylindrical shape Mouth part, cylindrical trunk part smaller in diameter than the mouth part, mouth part and trunk part An inclined step portion interposed therebetween, the inclined step portion of the inner container is engaged with the engaging groove of the outer container, and the lower end of the lower cylindrical portion of the stopper is in contact with the inner surface of the inclined step portion. The cover cap is fixed to the mouth of the outer container so as to annularly clamp the lower cylindrical portion of the plug, the flange portion, and the portion above the engaging groove of the outer container, The upper ends of the mouth portions of the outer container and the inner container are in close contact with the lower surface of the flange portion . The inner container is particularly preferably made of aluminum.

“ Clamping in an annular shape” includes the case of clamping in a discontinuous annular shape with crimp claws. Furthermore, it is preferable that a stem for operating communication / blocking between the inside and the outside of the inner container is inserted into the upper cylindrical portion of the stopper. In this case, it is preferable that a nozzle functioning as a cap that closes the discharge hole at the upper end opening of the stem when it is below and functions as a cap that opens when it is raised is provided around the stem. In addition, a nozzle that also serves as a lock part that prevents the stem from tilting when it is below the stem and allows the stem to tilt when it is raised is fitted around the stem. Is preferred.

In addition, a thin-walled portion that blocks communication between the inside and outside of the inner container (outside of the container body; outside air) is provided in the cavity of the upper tubular portion of the stopper, and the thin-walled portion is broken in the stem inserted into the upper tubular portion. It may be provided with a breaking portion.

  The discharge container of the present invention has a double structure of the outer container and the inner container, and the lower cylindrical part of the stopper can be fitted into the mouth of the inner container, so that the gap between the outer container and the inner container is It is possible to prevent the pressurizing agent from entering the inner container when the pressurizing agent is filled with the undercup. Therefore, the metal inner container having less stretchability than that of the synthetic resin is not torn, and the filling efficiency is excellent. And the undiluted | stock solution with which the inner container was filled can be discharged with the pressure of the said pressurizing agent. In addition, since the metal inner container and the stock solution are interposed between the plug and the pressurizing agent, and the plug is not exposed to the pressurizing agent, the plug is easy to permeate the pressurizing agent. Even if it is comprised from synthetic resin materials, such as these, a pressurizing agent does not permeate | transmit a stopper, but can prevent the leaking of the pressurizing agent after filling. Furthermore, when the stock solution is reduced by use (discharge), the leakage prevention effect by the stock solution is reduced, but the metal inner container itself can prevent the transmission of the pressure agent, It does not penetrate to the plug. In the case where the inner container is made of aluminum, in addition to the permeation preventing function, there is an advantage that the inner container easily contracts and deforms following a pressure change caused by discharge.

Further, since the cover cap is fixed so as to annularly clamp the lower cylindrical portion of the plug body and the flange portion extending outward from the outer periphery of the upper end of the lower cylindrical portion, the lower end of the cover cap is plastically deformed inward. Since the outer container and the inner container are fixed between the lower cylindrical portion of the stopper by the plastically deformed portion, the pressurizing agent filled between the outer container and the inner container can be sealed. Furthermore, since the lower surface of the flange portion is in direct contact with the upper end of the mouth of the outer container and the inner container or through a gasket, the sealability of the pressurizing agent can be enhanced. Moreover, even if the stem inserted into the upper cylinder part described later is tilted and discharged, the plug body is fixed in an annular shape, so that the position of the plug body is stable and easy to operate.

  When a stem for operating communication / blocking between the inside and the outside of the inner container is inserted in the upper cylindrical portion of the stopper, the stock solution can be discharged by operating the stem and used repeatedly. Can do. In that case, the plug body also has a sealing action at the contact portion with the stem.

Instead of providing a stem for operating communication / blocking in the plug body, a thin wall section for blocking communication between the inside and outside of the inner container is provided in the upper cylinder portion of the plug body, and the stem inserted into the upper cylinder portion is provided. The one provided with a rupture part that breaks the thin part is highly sealed because the communication between the cavity of the upper cylindrical part of the stopper and the inside of the inner container is blocked until the thin part is broken. Excellent stability of the stock solution.

FIG. 1a is a sectional view showing an embodiment of a discharge container of the present invention, and FIG. 1b is a plan view of a nozzle of the discharge container. It is sectional drawing which shows the discharge possible state of the discharge container of FIG. FIG. 3A is a cross-sectional view showing a filling process of the pressurizing agent in the discharge container of FIG. 1A, and FIG. 3B is a cross-sectional view showing a cover cap clinching process. 4a is a cross-sectional view showing another embodiment of the discharge container of the present invention, and FIG. 4b is a cross-sectional view showing a discharge state of the discharge container. It is principal part sectional drawing which shows other embodiment of the discharge container of this invention. It is principal part sectional drawing which shows other embodiment of the discharge container of this invention.

  A discharge container 10 shown in FIG. 1a includes a container body 13 composed of an outer container 11 and a metal inner container 12 accommodated in the outer container, and a plug body 15 made of an elastic material that closes the mouth portion 14 of the container body. And a metal cover cap 16 for fixing the stopper to the outer container 11. A stem 17 that protrudes upward is fitted in the central portion of the plug body 15. The plug 15 and the stem 17 function as a tilt type aerosol valve.

  In this embodiment, a nozzle 20 is further mounted around the stem 17 so as to be movable up and down. The nozzle 20 functions as a cap that closes the discharge hole 43 at the upper end opening of the stem 17 when it is below and opens when it is raised. Further, it also serves as a lock part that prevents the stem 17 from tilting when it is below and allows the stem 17 to tilt when it is raised upward.

  The outer container 11 is a container having pressure resistance, and as shown in FIG. 3A, a cylindrical body part 21, a tapered shoulder part 22 provided at the upper part thereof, and a cylindrical neck part provided at the upper part thereof. 23. A bottom plate 24 is integrally provided at the lower end of the body portion 21. An annular engagement groove 25 for clinching the lower end of the cover cap 16 is formed around the neck portion 23. The reason why the neck portion 23 is made thinner than the body portion 21 is to provide a space for filling the pressurizing agent between the outer container 11 and the inner container 12. The outer diameter of the outer container 11 is, for example, about 15 to 35 mm, particularly about 18 to 30 mm. The height is about 20 to 100 mm, preferably about 30 to 80 mm.

  The engagement groove 25 has a substantially arc-shaped cross section, a triangular shape or a trapezoidal shape, and the inner surface of the engagement step portion 25 a on the upper side of the engagement groove 25 supports the inclined step portion 26 of the inner container 12 and the lower portion of the plug body 15. The inclined step portion 26 of the inner container 12 can be clamped between the lower end of the cylindrical portion 34. Therefore, when the lower end of the cover cap 16 is caulked to the engaging groove 25 and plastically deformed, the stopper 15 and the inner container 12 can be firmly held while supporting the force. Further, the engaging step portion 25 a of the outer container 11 and the inclined step portion 26 of the inner container 12 are held in close contact with each other by the plastic deformation portion at the lower end of the cover cap 16 and the lower portion of the lower cylinder portion of the plug body 15. Accordingly, the pressurizing agent can be confined in the gap between the outer container and the inner container, and the plug body 15 can be prevented from being exposed to the pressurizing agent. A portion of the neck portion 23 above the engagement groove 25 is a mouth portion 28 on which the mouth portion 27 of the inner container 12 is loosely overlapped. The upper end edge of the mouth portion 28 is contacted by the flange portion 29 of the plug body 15. Performs a sealing function in contact. The upper edge is formed flat by cutting or the like.

  The outer container 11 is formed by impact molding of a metal slag such as aluminum into a bottomed cylindrical shape or drawing or squeezing and forming a metal plate of aluminum or the like into a bottomed cylindrical shape, and necking the shoulder portion 22 and the neck portion 23 for engagement. A monoblock can or the like in which the groove 25 is formed by roll molding or the like is used. However, it is also possible to use a two-piece can, a three-piece can, or the like in which the body portion 21, the shoulder portion 22, the bottom plate 24, and the like are separately formed and joined. The engagement groove 25 can also be formed by reducing the diameter of the mouth portion 28 from the middle and increasing the diameter somewhat from above. The outer container 11 may employ other materials such as synthetic resin and glass in addition to metal.

  The inner container 12 is a metal container having a thin-walled collapsibility with a body thickness of about 0.1 to 0.4 mm, preferably about 0.1 to 0.3 mm. It has a form (see FIG. 3a). The thickness and shape of the inner container 12 are set so as to be crushed by the pressure of the pressurizing agent. As the metal, aluminum, brass, or the like excellent in formability, ductility, and malleability is used, and aluminum, particularly 99% or more pure aluminum is preferable in terms of formability. The vicinity of the upper end of the inner container 12 is a mouth portion 27 having a diameter slightly larger than that of the body portion 30, and the above-described inclined step portion 26 that extends upward is formed between the body portion 30 and the mouth portion 27. A bottom plate 31 is provided at the lower end of the body portion 30.

The inner container 12 is formed by impact-molding a metal slag (disk-like thick plate, blank) by backward extrusion or the like, or drawing or drawing ironing from a metal plate. The bottom plate 31 of the inner container 12 is usually thicker than the body part 30, but in order to make it easier to shrink and deform in the vertical direction when the stopper is pressed against the outer container and fixed, a tapered part, conical shape or conical shape is provided. You may shape | mold into a trapezoid. When the undiluted solution corrodes the metal in the inner container, the inner surface of the inner container 12 is coated with a synthetic resin or powder that improves corrosion resistance.

  The outer diameter of the body portion 30 of the inner container 12 is smaller than the inner diameter of the engagement groove 25 so that the inner container 12 can be inserted into the outer container 11 without being deformed. The outer diameter of the mouth portion 27 of the inner container 12 is set so as to be loosely fitted with the mouth portion 28 of the outer container 11. Thereby, when the inner container 12 is inserted into the outer container 11, the trunk portion 30, the mouth portion 27, and the inclined step portion 26 are not wrinkled, so that the sealing performance is improved. A container body 13 is obtained by inserting the inner container 12 into the outer container 11.

  As shown in FIG. 1 a, the stopper 15 closes the mouth portion 14 (the mouth portion 27 of the inner container 12 and the mouth portion 28 of the outer container) of the container body 13, and a disc portion 33 corresponding to the mouth portion 14. The lower cylindrical portion 34 extending downward from the vicinity of the outer periphery of the disc portion 33, the flange portion 29 extending outward from the outer periphery of the upper end of the lower cylindrical portion, and the upper cylindrical portion 36 extending upward from the center of the disc portion 33. Become.

The stopper 15 maintains the sealing property with the inner container 12 and the outer container 11 and the sealing property with the stem 17 and allows the stem 17 to tilt, so that polyethylene, polypropylene, polystyrene, polyethylene terephthalate, polybutylene terephthalate, polyamide, polycarbonate , Thermoplastic resins such as polyacetal, polyurethane, fluororesin, elastomers such as olefin elastomer, styrene elastomer, polyester elastomer, polyurethane elastomer, polyamide elastomer, synthetic rubber such as silicone rubber, chloroprene, acrylonitrile butadiene, butyl rubber, And an elastic body such as a composite of these. In particular, it is preferable to use a polyolefin such as polyethylene or polypropylene, a thermoplastic resin such as polyurethane, or an elastomer from the viewpoints of excellent sealing properties, easy tilting of the stem, and stability with respect to the contents. A columnar cavity 36a inside the upper cylindrical portion 36 is a hole for mounting the stem 17, and penetrates the disc portion 33 to reach the lower end. In this embodiment, in order to strengthen the reinforcement of the upper cylinder part 36 and the fitting with the nozzle 20 from the outer peripheral surface of the upper cylinder part 36 to the upper surface of the disk part 33, a plurality of ribs (concave and convex strips) 37 are provided. Is provided.

  The outer peripheral surface of the lower cylindrical portion 34 of the plug 15 is tightly fitted to the inner peripheral surface of the mouth portion 27 of the inner container 12 when the pressurizing agent is filled with an undercup, thereby exhibiting a sealing property. Intrusion into 12 is prevented. Since the plug has elasticity, the sealing performance is enhanced by the filling pressure of the pressurizing agent. The lower surface of the disc part 33 is in contact with the outer peripheral upper surface of the base part 38 provided at the lower end of the stem 17 and seals it. The inner peripheral surface of the cavity 36 a of the upper cylindrical portion 36 contacts and seals the outer peripheral surface of the stem 17. The upper end of the upper cylindrical portion 36 is engaged with the engagement protrusion 39 of the stem 17 to hold the stem 17. In addition, since the internal pressure is applied to the stem 17 upward, the engagement protrusion 39 can be omitted. When the cover cap 16 is fixed to the outer container 11, the flange portion 29 of the plug body 15 seals the lower surface directly in contact with the upper end of the mouth portion 28 of the outer container. In addition, a gasket may be provided on the lower surface of the flange portion 29, and the lower surface may be in contact with the upper end of the mouth of the external container through the gasket for sealing.

The cover cap 16 is fixed to the container main body 13 so as not to come off the plug body 15 to which internal pressure is applied. As shown in FIG. 2, a metal thin plate such as aluminum or steel is formed into a cup shape, An opening 40 through which the upper cylindrical portion 36 of the plug body passes is formed in the center. As described above, the lower portion of the outer wall 16a of the cover cap 16 is crimped to the engaging groove 25 of the outer container 11 after being filled with the pressurizing agent, and is plastically deformed (peripheral clinching). By this caulking, the lower cylinder portion 34 of the plug body 15 and the flange portion 29 extending outward from the outer periphery of the upper end of the lower cylinder section are annularly pressed up and down to fix the plug body 15 and the stem 17 to the container body 13. be able to. At this time, the outer container 11 and the inner container 12 are strongly pressed against the lower portion of the lower cylindrical portion 34 of the plug body 15, and the upper end of the mouth portion 28 of the outer container 11 is strongly brought into contact with the lower surface of the flange 29 of the plug body 15. And seal. Therefore, it is preferable that the cover cap 16 is capable of plastic deformation and has high strength and rigidity.

  As shown in FIG. 2, the stem 17 includes a cylindrical portion 41 that is closely fitted in the cavity 36 a of the upper cylindrical portion of the plug body 15, and the aforementioned disc-shaped base portion 38 that closes the lower end of the upper cylindrical portion. Become. A stem hole 42 that communicates the internal space of the stem 17 and the outside in the radial direction is formed on the side surface of the cylindrical portion 41 and immediately above the base portion 38. Further, the above-described engagement protrusion 39 is formed on the outer periphery in the middle in the longitudinal direction of the cylindrical portion 41 of the stem 17. The stem hole 42 is in contact with the inner surface of the upper cylindrical portion 36 of the plug 15 and is normally sealed, and when the stem 17 is tilted, the stem hole 42 is opened and communicates inside and outside. The stem 17 can be made of a synthetic resin such as polyacetal or nylon.

  In the discharge container 10 of FIGS. 1 a and 2, a nozzle 20 is provided, and the nozzle 20 is a cylindrical member whose upper end is closed except for the discharge port 43. However, the nozzle 20 is not necessarily provided and can be omitted. In this embodiment, the nozzle 20 is movable up and down with respect to the stem 17. A substantially hemispherical closing projection 44 that closes the upper end opening of the stem 17 is provided on the inner surface of the upper end of the nozzle 20. The discharge port 43 is formed in a fan shape avoiding the closing protrusion 44 (see FIG. 1b).

  The lower inner periphery of the nozzle 20 has an uneven shape that fits with the upper cylindrical portion 36 and the rib 37 of the plug 15. Thereby, the nozzle 20 does not rotate, and the position of the discharge port 43 does not change even if it is moved up and down. On the inner surface of the intermediate portion in the vertical direction of the nozzle 20, a lip 45 slidably contacting the outer periphery of the cylindrical portion of the stem 17 is provided. The lip 45 is configured to discharge only from the discharge port 43 so as not to flow toward the plug body 15 when the stock solution is discharged into the nozzle 20. Further, an annular locking protrusion 46 is formed on the outer periphery of the upper end of the stem 17, and an engaging protrusion 47 is formed on the inner peripheral surface of the nozzle 20 to engage with the locking protrusion 46 and prevent the nozzle 20 from coming off. . A seal ring 48 made of rubber or soft resin is embedded at the lower end of the nozzle 20 so as to abut the cover cap 16 and provide a sealing action.

  Next, with reference to FIG. 3a and FIG. 3b, a method of filling the above-described discharge container 10 with contents (stock solution and pressurizing agent) will be described. In the discharge container 10, the inner container 12 is filled with the stock solution G, and the pressurizing agent P is filled between the inner container 12 and the outer container 11. Examples of the stock solution include drugs used for trauma and skin diseases, hair dyes, creams and gels for skin care, and the like. As the pressurizing agent, compressed gas such as nitrogen, carbon dioxide, nitrous oxide and compressed air, and liquefied gas such as liquefied petroleum gas, dimethyl ether and hydrofluoroolefin are used.

  As shown in FIG. 3 a, first, the inner container 12 is accommodated in the outer container 11. At this time, with the bottom 31 of the inner container installed on the bottom plate 24 of the outer container, the mouth 27 of the inner container protrudes above the mouth 28 of the outer container. The stem 17 and the cover cap 16 are attached to the plug body 15 in advance. First, the inner container 12 is filled with the stock solution G, and the mouth portion 27 of the inner container is closed with the plug 15. At this time, the inner peripheral surface of the mouth portion 27 of the inner container 12 is closely fitted to the outer peripheral surface of the lower cylindrical portion 34 of the plug body 15 and is in a sealed state. In this state, a gap is secured between the lower end of the cover cap 16 and the upper end of the outer container 11. The inner container 12 may be held in a suspended state.

Next, the upper outer periphery of the outer container 11 and the cover cap 1 according to the conventional method of filling the undercup
The pressure agent P is filled from the gap between the lower end of 6. That is, a pressurizing agent is introduced between the sealing material of the filling device that fits airtightly with the outer periphery of the outer container 11 and the sealing material that fits airtightly with the periphery of the cover cap 16, and the engaging groove 25 of the outer container 11. The space S between the outer container 11 and the inner container 12 is filled with a pressurizing agent through a gap between the inner surface of the inner container 12 and the outer peripheral surface of the body portion of the inner container 12. At that time, since the inner peripheral surface of the mouth portion 27 of the inner container 12 and the outer peripheral surface of the lower cylindrical portion 34 of the plug 15 are closely fitted, the pressurizing agent is prevented from entering the inner container 12. The Thereby, the thin metal inner container 12 does not tear.

  After filling with the pressurizing agent, as shown in FIG. 3b, the inner container is compressed up and down while the cover cap 16 is pushed over the mouth of the outer container 11, and the plug 15 is pressed against the outer container 11. By clinching the lower end of the cover cap 16 inward, the inclined step portion of the inner container 12 is formed by the corner of the lower end outer periphery of the lower cylindrical portion 34 and the engagement step portion 25a on the inner surface of the engagement groove 25 of the outer container 11. 26 is clamped. As a result, the space between the inner container 12 and the plug body 15 is sealed and the space between the outer container 11 and the inner container 12 is sealed in an annular region along the outer peripheral corner of the lower cylindrical portion 34 of the plug body 15. Further, the upper end of the outer container 11 is in strong contact with the flange portion 29 of the plug body 15, and a sealing action is also exhibited at this portion. A sealing action is achieved by fitting the mouth portion of the inner container 12 and the lower cylindrical portion 34 of the stopper 15. Therefore, the pressurizing agent P does not leak from the space S between the outer container 11 and the inner container 12.

  The cover cap clinches are fixed by bending and plastically deforming the lower part of the outer wall of the cover cap 16 along the engagement groove 25 of the outer container 11 with the stopper 15 pressed downward (peripheral clinch). ). After clinching, even if the force that presses the plug 15 downward is released, the pressurizing action is maintained by the cover cap 16.

  The discharge product thus manufactured is sealed between the outer container 11 and the plug body 15, between the inner container 12 and the plug body, and between the plug body 15 and the stem 17. The pressurizing agent P filled in the space S between the inner containers 12 does not leak to the outside. Further, since the inner container 12 is made of metal, the pressurizing agent P does not permeate the wall of the inner container 12 and enter the inner container 12, and further penetrates the plug 15 and does not leak to the outside. The pressurizing agent P only transmits pressure through the inner container 12. When the inner container 12 is made of synthetic resin and the remaining amount of the stock solution is large, the pressurizing agent that has permeated the wall of the inner container is blocked by the stock solution, and therefore the pressurizing agent rarely permeates the plug. However, when the remaining amount of the stock solution decreases, there is a problem that the permeation suppression effect is lowered. However, in the discharge container 10 of FIG. 1a in which the pressure agent is confined between the metal inner container and the outer container, the effect of preventing the penetration into the plug body is high regardless of the remaining amount of the stock solution.

  Next, a method of using the discharge product configured as described above will be described with reference to FIGS. In the discharge container 10, the stem hole 42 is closed by the plug 15 when the nozzle 20 is moved downward as shown in FIG. Therefore, even if an internal pressure is applied to the inner container 12, the stock solution G is not discharged. Further, the inner surface of the lower portion of the nozzle 20 is fitted or engaged with the outer periphery of the upper cylindrical portion 36 of the plug 15 to restrain the tilt of the stem 17. Therefore, the stem 17 is not tilted by mistake.

When the user intends to discharge, the nozzle 20 is first lifted as shown in FIG. As a result, the fitting or engagement between the inner surface of the lower portion 20a of the nozzle 20 and the upper cylindrical portion 36 of the plug 15 is released, and the tilting operation of the stem 17 becomes possible. In this state, the nozzle 20 and the stem 17 are tilted. Then, the stem hole 42 is opened, and the stock solution in the inner container 12 receiving pressure is discharged into the nozzle 20 through the stem 17 and further discharged from the discharge port 43 to the outside. When the tilting is stopped, the plug body 15 returns to its original state due to the elasticity of the plug body 15, the stem hole 42 is blocked by the plug body 15, and the discharge of the stock solution is stopped. Next, when the nozzle 20 is moved downward, the tilting operation of the stem 17 is restrained as described above. At this time, since the closing projection 44 on the inner surface of the upper end of the nozzle 20 closes the upper end opening of the stem 17, it is possible to prevent foreign matters from entering the inside of the stem 17.

  In the discharge container 50 shown in FIGS. 4 a and 4 b, the stopper 15 is provided with a thin portion 51 that closes the internal cavity 36 a. In this embodiment, a thin portion 51 is provided at the lower end of the cavity 36a. At the time of distribution, the stem 17 is not inserted into the cavity 36a of the plug 15 and is prepared separately from the container body. A breaking portion 52 for breaking the thin portion 51 is provided at the lower end of the stem 17. The fracture | rupture part 52 can be provided by forming the lower end of the stem 17 diagonally and attaching an edge etc., as shown in FIG. 4b. Since internal pressure is applied to the stem 17 after the break, it is preferable to provide a presser flange 53 for pressing the stem 17 so as not to come off.

  In the discharge container 50, the presser flange 53 includes a disc-shaped pusher 54 provided at the intermediate portion in the vertical direction of the stem 17 and an outer wall 55 extending downward from the periphery of the pusher. The outer wall 55 has an inner surface shape that fits with the outer periphery of the cover cap 16. Thereby, the stem 17 can be stably held in the plug body 15. And in the unused state, since the internal cavity of the plug 15 is sealed with the thin part 51, the leakage of the undiluted solution of the internal container 12 is further less than the discharge container 10 of FIG. 1a. Therefore, it can be stably stored. Other configurations and operational effects, particularly the sealing action of the pressurizing agent, are substantially the same as those of the discharge container 10 of FIG. 1a. 4a and 4b, ribs 37 similar to those in FIG. 1a may be provided. When such a rib 37 is provided, when the stem 17 is tilted, it is difficult for the upper cylindrical portion 36 to follow, so that the discharge can be performed with a slight tilt of the stem.

  The manufacturing method of this discharge container 50 is substantially the same as the discharge container 10 of FIG. In particular, as a method of filling the pressurizing agent between the outer container 11 and the inner container 12, the under-cup filling method shown in FIGS. 3a and 3b can be employed as it is. However, once the thin portion 51 is broken, it cannot be closed again, so that it becomes a single-use type discharge container. In that case, it is preferable to use a small type having a capacity of about 2 to 15 ml.

  The discharge container 56 shown in FIG. 5 is similar to the discharge container 50 of FIGS. 4a and 4b, in which the cavity 36a of the plug 15 is sealed with a thin portion 51 at the time of distribution and storage, and the lower end of the stem 17 is broken at the time of use. The portion 52 is opened. However, on the outer periphery of the lower portion of the stem 17, there is provided a protrusion 57 that allows insertion into the cavity 36a and prevents return. Further, a stem hole 42 is formed which is closed by the inner surface of the cavity 36a. Therefore, when the stem 17 is fitted into the cavity 36 a of the plug body 15, the protrusion 57 is engaged with the lower surface of the plug body 15 to withstand internal pressure and does not come off.

  In this discharge container 56, as in the discharge container 10 of FIG. 1 a, the stem hole 42 is normally closed by the inner surface of the cavity 36 a, and when the stem 17 is tilted, the inner container 12 and the inside of the stem 17 communicate with each other through the stem hole 42. The stock solution can be discharged. Therefore, unlike the single-use type discharge container 50 shown in FIGS. 4a and 4b, it can be discharged many times. It should be noted that instead of providing the burrs 57 on the lower portion of the stem 17, the outer wall 55 of FIG. 4b is provided on the stem 17, and burrs or screws are provided on the lower end of the outer wall 55 to engage and hold the cover cap 16. May be.

  In the discharge container 10 shown in FIGS. 1a and 1b, the stopper 15 is an elastic material or soft material that has a sealing action in close contact with other parts made of metal or synthetic resin, such as rubber, synthetic resin (particularly soft resin), and elastomer. It is formed as one part. However, like the discharge container 60 of FIG. 6, the plug body 15 is made up of a lower plug body 61 having elasticity composed of a lower cylinder portion 34, a lower flange portion 29a and a lower disc portion 33a, an upper cylinder portion 36, and an upper flange portion. You may comprise from two parts with the hard upper plug body 62 which consists of 29b and the upper disc part 33b.

  The upper plug body 62 and the lower plug body 61 can be fixed when the cover cap 16 is clinched, but can also be integrated in advance by adhesion or welding. In that case, handling before assembly is easy. Further, the engaging protrusion 39 of the stem 17 may be provided on the base side of the stem, and the inner protrusion 63 may be provided in the upper cylindrical portion 36 to engage with the engaging protrusion 39. In that case, the stem 17 can be easily tilted even if the flexibility of the upper cylindrical portion 36 of the upper plug 62 is low. Further, when the annular groove 64 is formed immediately above the base portion 38 of the stem 17 and is fitted to the inner periphery of the lower disk portion 33a, the sealing performance between the stem 17 and the lower plug body 61 when not operated is high. Furthermore, the outer end of the stem hole 42 is opened on the upper surface of the base portion 38 of the stem and sealed with the lower surface of the lower disk portion 33a of the lower plug 61. In this case, the sealing performance with the container body 14 is excellent, the sealing performance with the base portion 38 of the stem 17 is excellent, and the communication when the stem 17 is tilted is easy.

  In the discharge container 10 of FIGS. 1 a and 1 b, a seamless bottomed cylindrical metal container is adopted as the inner container 12, but an extruded tube-shaped interior in which the bottom of a thin cylinder is flatly crushed and joined. Containers can also be employed. Moreover, a metal sheet can be rounded, a left and right edge can be joined, and also an inner container can be comprised by closing a bottom part. Moreover, an internal container can be similarly formed from the sheet | seat with low gas permeability which laminated | stacked the synthetic resin layer and the metal sheet.

  In the discharge container 10 of FIG. 1a, the stem 17 is tilted and opened / closed. However, the stem 17 may be opened / closed up and down. In addition, the nozzle 20 moves in the axial direction to switch between a dischargeable state and an impossible state, but can also be switched by turning around its own axis. For example, the outer peripheral surface of the upper cylindrical portion of the plug body 15 is protruded within a range of 180 degrees, and the inner surface of the lower portion of the nozzle 20 is also protruded inward within a range of 180 degrees, and both are rotatably connected. Then, the stem 17 cannot be tilted at the rotation position where the protruded parts are opposed to each other, and the stem can be tilted at the rotation position where the parts are not opposed to each other. Further, the nozzle 20 may be screwed around the upper cylinder 36 of the plug 15.

  When adopting such a rotating operation type nozzle, by forming a notch at the upper end of the stem, or forming a window near the upper end of the side wall, and forming a window at the corresponding part of the nozzle, It is preferable that the windows communicate with each other at a position where the stem can be pivoted and the windows do not communicate with each other.

DESCRIPTION OF SYMBOLS 10 Discharge container 11 External container 12 Internal container 13 Container main body 14 Mouth part 15 Plug body 16 Cover cap 16a Outer wall 17 Stem 20 Nozzle 20a Lower part 21 Body (External container)
22 Shoulder (outer container)
23 Neck (outer container)
24 Bottom plate (outer container)
25 Engagement groove (outer container)
25a Engagement step part 26 Inclination step part (inner container)
27 mouth (inner container)
28 mouth (outer container)
29 Flange (plug)
30 trunk (inner container)
31 Bottom plate (inner container)
33 disk part 34 lower cylinder part 36 upper cylinder part 36a cavity 37 rib 38 base 39 engaging protrusion 40 opening (cover cap)
41 Tube portion 42 Stem hole 43 Discharge port 44 Closure projection 45 Lip 46 Locking projection 47 Engagement projection 48 Seal ring 50 Discharge vessel 51 Thin portion 52 Breaking portion 53 Presser flange 54 Push portion 55 Outer wall 56 Discharge vessel 57 Frog projection 60 Discharge Container 29a Lower flange part 33a Lower disk part 61 Lower plug body 29b Upper flange part 33b Upper disk part 62 Upper plug part 63 Inner protrusion 64 Annular groove

Claims (5)

A metal outer container having a cylindrical mouth at the upper end;
A metallic inner container that is housed in a gap between the outer container and the outer container in the outer container, and has a thin-walled crushing property in which a cylindrical mouth portion at the upper end is stacked on the mouth portion of the outer container;
A plug made of an elastic material or a soft material that closes the outer container and the mouth of the inner container and has a sealing action in close contact with other parts ;
It consists of a metal annular cover cap that fixes the stopper to the outer container,
The plug body is a disc part, a lower cylindrical part closely fitted to the inner periphery of the mouth of the inner container, an upper cylindrical part for inserting a stem that protrudes outside from the central opening of the cover cap, A flange portion that extends outward from the outer periphery of the upper end of the lower cylindrical portion ,
The inner container includes the cylindrical mouth, a cylindrical trunk having a smaller diameter than the mouth, and an inclined step portion interposed between the mouth and the trunk,
The inclined step portion of the inner container is engaged with the engaging groove of the outer container, and the lower end of the lower cylindrical portion of the plug body is in contact with the inner surface of the inclined step portion,
The cover cap is fixed to the mouth portion of the outer container so as to annularly press the lower cylindrical portion of the plug body, the flange portion, and the portion above the engaging groove of the outer container,
The upper end of the mouth of the outer container and the inner container is in close contact with the lower surface of the flange part, respectively .
Discharge container. The discharge container according to claim 1, wherein a stem for operating communication / blocking between the inside and the outside of the inner container by tilting / returning operation is inserted into the upper cylindrical portion of the stopper. 3. A discharge container according to claim 2, wherein a nozzle functioning as a cap that closes the discharge hole at the upper end opening of the stem when it is below and functions as a cap that opens when it is raised is provided around the stem. . A nozzle that also serves as a lock part that prevents tilting of the stem when it is in the lower position and enables the tilting of the stem when it is raised is mounted around the stem. 3. The discharge container according to 3. 2. A thin wall portion for blocking communication between the inside and the outside of the inner container is provided in a cavity of the upper cylindrical portion of the stopper, and a break portion for breaking the thin wall portion is provided in a stem inserted into the upper cylindrical portion. The discharge container as described.