JP2019131281A - Discharge container and discharge product for accommodating gas container - Google Patents

Abstract

To provide a gas supply type discharge container that increases the capacity of a gas container, increases the number of times capable of using repeatedly, and discharges gas first when a screw cap is loosened to prevent the stock solution from a rapid ejection.SOLUTION: A discharge container 10 includes a container body 11 in which a bead 20 is formed around the mouth part 11e, a gas container 13 for supplying gas into the container body, a gas container holder 14 held in the container body 11 accommodated the gas container, and a valve assembly 12 that closes the mouth part 11e of the container body screwed to the container body 11, the bead 20 is comprised so that the bead has substantially a circular cross section, a sealing material 15 is disposed on the top of the bead, and the sealing material 15 is compressed between the bead 20 and the valve assembly 12 in the vertical direction by screwing the valve assembly 12.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a discharge container for storing a gas container and a discharge product.

  Patent Document 1 discloses a discharge container in which a valve assembly is attached to a container main body filled with a stock solution together with a gas container (gas can) filled with a pressurizing agent. This discharge container can discharge the stock solution in the container body by using the pressurizing agent supplied from the gas container to the container body as a propellant. The valve is detachably attached to the container body with a screw cap.

  When the stock solution is exhausted, the screw cap is removed, the gas container is taken out, and the gas container is attached to another container filled with the stock solution with the screw cap to release the pressurizing agent from the gas container. Stock solution can be injected. Therefore, as long as the pressurizing agent remains in the gas container, the gas container can be reused many times.

  Patent Document 2 discloses a seal structure including a bead of a container body and a mounting cup having a cover portion with an inverted U-shaped cross section that covers the bead, and a sealing material is interposed between the bead and the cover portion. Has been. As a sealing material, it has been proposed to employ an O-ring having a circular cross section in FIG. 4a, in which case the sealing material is temporarily attached to the covered portion with an adhesive or an adhesive (see paragraphs of the specification). [0032]). Further, Patent Document 2 discloses a sealing material including a central portion having a rectangular cross section, an upper portion having a trapezoidal cross section, and a lower portion having a semicircular cross section (see paragraph [0018]).

WO2017-61538 Japanese Patent Laid-Open No. 2003-20082

  In the discharge container of Patent Document 1, the seal material (O-ring) is compressed by the inner peripheral surface of the screw cap at the lower part of the screw part of the container body, and the stock solution easily enters the upper part of the O-ring. Therefore, if the screw cap is loosened, the stock solution may be ejected vigorously due to the pressure of the pressurizing agent in the container body, and the hands and surroundings may be soiled. In addition to the O-ring, a sealing material (rectangular gasket) is provided on the upper surface of the opening of the container body, but there is a problem that the gasket is easily cut when the screw cap is attached. Moreover, since the sealing performance of this gasket becomes weaker as the diameter of the opening of the container body increases, it is difficult to increase the diameter of the neck of the container body. Therefore, the outer diameter of the gas container that can be inserted into the container main body is reduced, resulting in a problem that the capacity of the gas container is reduced and the number of repetitions is reduced when the gas container is reused.

  An object of the present invention is to provide a gas replenishment type discharge container and a discharge product in which the gas in the container body is easily released when the screw cap is loosened, and the stock solution is prevented from being ejected vigorously. Furthermore, the present invention has a technical problem of increasing the capacity of the gas container in the gas replenishment type discharge container and increasing the number of times it can be used repeatedly.

  The discharge containers 10, 30, and 40 of the present invention include a container main body 11 in which a bead 20 is formed around a mouth portion 11 e, a gas container 13 for supplying gas into the container main body 11, and the gas container 13. A gas container holder 14 that is accommodated and held in the container body 11 and a valve assembly 12 that is screwed to the vicinity of the upper portion of the container body 11 and closes the mouth 11e of the container body 11, and the bead 20 has a substantially cross-sectional view. The sealing material 15 is circular and the sealing material 15 is arranged on the upper part of the bead 20, and the sealing material 15 is compressed between the bead 20 and the valve assembly 12 in the vertical direction by screwing the valve assembly 12. It is characterized by being composed.

  In such a discharge container 10, the valve assembly 12 has a screw cap 17, the screw cap 17 has a cylindrical inner peripheral surface (cylindrical surface 17 d), and the gas container holder 14 includes the screw cap 17. The cap 17 has a cylindrical outer peripheral surface (insertion step 14 c) facing the cylindrical inner peripheral surface (cylindrical surface 17 d), and the sealing material 15 is a cylindrical outer peripheral surface (insertion step) of the gas container holder 14. 14c) and the cylindrical inner peripheral surface (cylindrical surface 17d) of the screw cap 17, and the cylindrical outer peripheral surface (insertion step 14c) of the gas container holder 14 and the screw by compression in the vertical direction What is made to contact | abut to the cylindrical internal peripheral surface (cylindrical surface 17d) of the cap 17 is preferable.

  The gas container holder 14 preferably has a horizontal pressing surface 14 f that presses the upper surface of the sealing material 15. Further, the screw cap 17 has a cylindrical enlarged diameter portion 17e that expands from the lower end of the inner peripheral surface (17d) and extends downward, and the threaded portion (male screw 21) of the container body 11 is formed in the enlarged diameter portion. A screw portion (female screw 28) to be screwed is formed, and the lower end of the inner peripheral surface (17d) is positioned below the seal material 15 in a state where the screw cap 17 is attached to the container body 11. preferable.

  Further, it is preferable that a shoulder cover 43 is mounted on the container body 11 so as not to rotate, and the valve assembly 12 is screwed onto the shoulder cover 43. Furthermore, the screw cap 17 has a cylindrical enlarged diameter portion 17e that expands from the lower end of the inner peripheral surface (17d) and extends downward, and is screwed onto the threaded portion (21) of the shoulder cover 43 at the enlarged diameter portion. It is preferable that a screw part (28) to be joined is formed, and that the lower end of the inner peripheral surface (17d) is located below the sealing material 15 in a state where the screw cap 17 is attached to the shoulder cover 43.

  The discharge product 29 of the present invention is characterized by comprising any one of the discharge containers 10, 30, 40, the stock solution C filled in the container body 11, and the pressurizing agent P filled in the gas container 13. Yes.

  In the discharge container of the present invention, the sealing member is compressed in the vertical direction between the bead having a substantially circular cross section and the valve assembly by screwing the valve assembly to the vicinity of the upper part of the container body. Since the material is strongly compressed and a line seal structure with a closed annular wire is obtained, the sealing pressure can be increased. Moreover, since the bead is provided in the mouth part of the container main body, the strength of the mouth part of the container main body is high. Therefore, even if the diameter of the mouth portion is increased, deformation due to screwing of the valve assembly is small and the sealing action is high. Therefore, the diameter of the mouth can be increased and a gas container having a large outer diameter can be used. Therefore, the capacity of the gas container can be increased.

  In such a discharge container, the valve assembly has a screw cap, the screw cap has a cylindrical inner peripheral surface, and the gas container holder faces the cylindrical inner peripheral surface of the screw cap. A cylindrical outer peripheral surface, and the sealing material is disposed between the cylindrical outer peripheral surface of the gas container holder and the cylindrical inner peripheral surface of the screw cap. When the screw cap is attached or removed, the sealing material is unlikely to be displaced. In addition, the sealing material spreads in the horizontal direction by screwing the screw cap and seals the stock solution passage. For this reason, when the screw cap is loosened, the compression of the line seal in the vertical direction is likely to be reduced, and gas that requires high sealing performance is discharged, and the stock solution C is prevented from scattering.

  When the gas container holder has a horizontal pressing surface that presses the upper surface of the sealing material, the sealing material tends to spread in the horizontal direction due to compression in the vertical direction, and the effect of suppressing splashing of the stock solution is high.

  The screw cap has a cylindrical enlarged portion extending from the lower end of the inner peripheral surface and extending downward, and a screw portion that is screwed into the screw portion of the container body is formed on the enlarged portion. When the screw cap is attached to the container body and the lower end of the inner peripheral surface is positioned below the seal material, the seal material can be kept in contact with the screw cap for a long time when the screw cap is loosened. The effect which suppresses is high.

  When the shoulder cover is mounted on the container body so as not to rotate and the valve assembly is screwed onto the shoulder cover, the gas in the container body is blocked by the shoulder cover when the screw cap is loosened. Is released slowly. Further, even if the stock solution escapes from the sealing material and is released, it is blocked by the shoulder cover, so that scattering is prevented.

  The screw cap has a cylindrical enlarged portion extending from the lower end of the inner peripheral surface and extending downward, and a screw portion that is screwed into the screw portion of the shoulder cover is formed in the enlarged portion, When the lower end of the inner peripheral surface is positioned below the sealing material with the screw cap attached to the shoulder cover, the inner peripheral surface can be brought into contact with the sealing material longer when the screw cap is loosened. , The effect of suppressing scattering of the stock solution is increased.

  Since the discharge product of the present invention uses the above-described discharge container, a gas container having a large capacity can be used, the number of times of reuse is large, and the stock solution is not easily scattered when the screw cap is loosened.

It is sectional drawing which shows one Embodiment of the discharge container of this invention. 2A and 2B are enlarged sectional views showing an uncompressed state and a compressed state, respectively, of the seal portion of FIG. 3A and 3B are enlarged sectional views showing an uncompressed state and a compressed state, respectively, in another embodiment of the seal portion according to the present invention. It is sectional drawing which shows other embodiment of the discharge container of this invention.

  A discharge container 10 shown in FIG. 1 contains a container main body 11, a valve assembly 12 attached to the mouth 11e of the container main body, a gas container 13 accommodated in the container main body 11, and the gas container. It comprises a gas container holder 14 held by the main body 11. A sealing material 15 is interposed between the gas container holder 14 and the container body 11. The valve assembly 12 includes a valve mechanism 16 and a screw cap 17 for screwing the valve mechanism to the container body 11. In FIG. 1, the screw cap 17 is not completely screwed to the container body 11, and the sealing material 15 is not compressed.

  The gas container holder 14 is attached with a dip tube 18 that allows the lower part of the container body 11 to communicate with the valve mechanism 16. In this embodiment, the upper end of the dip tube 18 communicates with the inside of the valve mechanism 16 via the gas container holder 14. The container body 11 contains a stock solution C, and the gas container 13 is filled with a pressurizing agent P.

  The container body 11 is formed by press-molding a metal plate, and includes a bottom portion 11a, a trunk portion 11b, a shoulder portion 11c, a cylindrical neck portion 11d, and a bead 20 formed on the upper end of the neck portion. The upper end of the neck portion 11d, that is, the opening surrounded by the bead 20 is the mouth portion 11e. The bottom part 11a and the body part 11b may be formed separately and combined by double winding or the like. The body portion 11b and the shoulder portion 11c may also be formed separately and joined by double winding or the like (see FIG. 4). As the metal constituting the container body 11, aluminum, tinplate, or the like is used. The plate thickness is about 0.1 to 0.4 mm. The diameter of the trunk | drum 11b is about 35-60 mm.

  The neck portion 11d is formed with a male screw 21 having a corrugated cross section or a V-groove on the surface side and a spiral ridge protruding inward. The height of the thread is about 0.5 to 2 mm. The number of turns of the thread is about 1.5 to 3 turns. The bead 20 is formed by curling the upper end of the cylindrical neck portion 11d outward so as to have a substantially circular cross section. The bead 20 has an outer diameter of 25-35 mm, an inner diameter of 20-30 mm, and a diameter of 2.5-3. About 5 mm. A tapered portion 20a is formed in the vicinity of the upper end of the neck portion 11d so that the outer periphery of the bead 20 is thinner than the valley of the male screw 21. In the container main body 11 of FIG. 1, the shoulder portion 11c has a truncated cone shape, but may be rounded.

  The valve mechanism 16 includes a housing 23 having a stem accommodating portion 23a at the center of the upper end, a stem 24 accommodated in the stem accommodating portion 23a so as to be movable up and down, a spring 25 for urging the stem upward, and a stem of the stem 24. It comprises a stem rubber 26 that closes the hole, and a gasket 27 that seals between the housing 23 and the gas container holder 14. The housing 23 includes a cylindrical upper part 23b, a thin closed cylindrical lower part 23c, a cylindrical part 23d fitted to the inner periphery of the gasket 27, and a flange 23e extending from the lower end of the upper part 23b. The narrow cylindrical bottom 23c is a part that abuts against the bottom of the gas container 13 in the gas container holder 14 and pushes in the gas container 13 to further define the rising end.

  The upper portion 23b of the housing 23 is formed with the above-described stem housing portion 23a, and a radial passage 23f that connects the stem housing portion 23a and the outer peripheral surface is formed. A passage groove 23g communicating with the dip tube 18 is formed on the upper surface of the flange 23e. The housing 23 may employ a synthetic resin used in conventional valve housings such as polyacetal (POM) and polybutylene terephthalate (PBT).

  The screw cap 17 includes an outer peripheral portion 17a that covers the outer periphery of the neck portion 11d of the container body 11, a top surface 17b that closes the upper end thereof, and a bottomed cylindrical housing fitting portion 17c that protrudes upward from the center of the top surface. Consists of. A cylindrical surface 17d is formed on the inner surface of the outer peripheral portion 17a to contact when the sealing material 15 is compressed in the vertical direction. The cylindrical surface 17d has a cylindrical enlarged portion 17e whose diameter is larger than the inner diameter of the cylindrical surface 17d. The enlarged portion 17e is provided with a female screw 28 that is engaged with the male screw 21 of the container body 11. ing. On the upper side of the cylindrical surface 17d, a fitting portion 17f that fits with an outer periphery of a flange 14d of the gas container holder 14 to be described later is provided. The top surface 17b is a part where the gas container holder 14 and the valve mechanism 16 are sandwiched between the container body 11 and the top surface 17b. The housing fitting portion 17c has an upper portion 17g fitted with the housing 23, and the lower portion 17h is expanded through a step portion 17j in order to form a gap 17i between the housing 17 and the outer surface of the housing 23. As the material of the screw cap 17, a synthetic resin similar to the material of the housing 23 described above can be employed.

  As the sealing material 15, a rubber O-ring made of a ring having a circular cross section is employed. However, the cross-sectional shape of the sealing material 15 may be other shapes such as a rectangle. In the case of an O-ring having a circular cross section, a thin annular line is formed between a portion of the container body 11 that contacts the bead 20 and a pressing surface 14f of the gas container holder 14 to be described later, and the sealing pressure can be increased (line seal). ). Since the sealing material 15 is unstable when placed on the bead 20, it is preferably attached to the outer peripheral surface of the gas container holder 14 by elasticity. As the material of the sealing material 15, natural rubber, synthetic rubber or the like is used.

  The gas container 13 includes a main body 13a formed of a bottomed cylindrical metal can arranged upside down, a valve assembly 13b attached to an opening of the main body, and a piston 13d attached to a stem 13c of the valve assembly 13b. It consists of. A stem mounting hole 13e that fits with the stem 13c is formed at the center of the upper surface of the piston 13d, and a passage 13f that opens on the upper surface side of the piston 13d is formed in the stem mounting hole. When the stem 13c of the valve assembly 13b is not pushed, the valve is closed, and when the stem 13c is pushed, the valve is opened. The gas container 13 is filled with a pressurizing agent such as a compressed gas such as nitrogen, carbon dioxide or compressed air, or a liquefied gas such as hydrofluoroolefin, liquefied petroleum gas or dimethyl ether. The internal pressure of the gas container 13 is higher than the equilibrium pressure in the container body 11, and is preferably 0.3 to 0.7 MPa (35 ° C., gauge pressure), particularly 0.35 to 0.6 MPa (35 ° C., gauge pressure). . The capacity of the gas container 13 is preferably 5 to 30 ml, particularly preferably 10 to 25 ml. In addition, when using liquefied gas as the pressurizing agent P, the valve assembly 13 from which the vaporized gas (gas) of liquefied gas is discharged from the gas container 13 is used.

  The gas container holder 14 is provided at the bottom of the cylindrical body 14a having a bottom, a cylinder 14c protruding downward from the bottom 14b, a flange 14d extending outward from the vicinity of the upper end of the body 14a, and a flange 14d. It comprises an insertion step 14e that fits into the mouth 11e of the main body 11. The insertion step portion 14e has a cylindrical outer peripheral surface, is fitted and held with the inner surface of the sealing material 15, and supports the inner peripheral surface of the sealing material 15 when the sealing material 15 is compressed up and down. It is. The lower surface of the flange 14 d is a horizontal pressing surface 14 f that presses the sealing material 15 against the bead, and is a portion where the sealing material 15 is sandwiched between the bead 20. No sealing material is provided between the upper surface of the flange 14 d and the top surface 17 b of the screw cap 17, and between the outer peripheral surface of the flange 14 d and the inner peripheral surface of the screw cap 17. Therefore, a liquid leakage passage Lp is generated in these gaps and the gap between the male screw 21 and the female screw 28. The same material as the synthetic resin used for the housing 23 can be adopted as the material of the gas container holder 14.

  The outer peripheral surface and upper surface of the flange 14 d are fitted with the upper inner surface of the screw cap 17, whereby the gas container holder 14 is held by the screw cap 17. A recess 14g for accommodating the gasket 27 is formed on the upper surface of the flange 14d. The flange 14d is formed with a holding hole 14h that fits and holds the upper end of the dip tube 18, and an introduction hole 14i that communicates the holding hole with the passage groove 23g on the upper surface of the flange 14d.

  The cylinder 14c of the gas container holder 14 is thinner than the body portion 14a. However, it may be the same diameter. The lower end of the cylinder 14c is spherical in order to increase pressure resistance. The piston 13d is provided with ring-shaped sliding contact portions 13e at the upper end and the lower end in order to improve the airtightness with the cylinder 14c. The body portion 14a of the gas container holder 14 is formed with a communication hole 14j that communicates the inside (gas phase) of the container body 11 and the body portion 14a to transmit pressure.

  The discharge container 10 configured as described above has a gas container holder 14 that holds the gas container 13 filled with the pressurizing agent P in the container body 11 filled with the stock solution C or the container body 11 filled with the stock solution. And the screw cap 17 holding the valve mechanism 16 is screwed into the container main body 11, so that the pressurizing agent is released from the gas container 13 into the container main body 11 and the stock solution C can be discharged. . By attaching a push button (not shown) having a nozzle hole to the stem 24 of the valve mechanism 18, a discharge product is obtained. The screw cap 17 that holds the valve mechanism 16 and the gas container holder 14 may be combined together in advance.

  As shown in FIGS. 1 and 2A, when the screw cap 17 is not sufficiently tightened and the sealing material 15 is not compressed, the cross-sectional shape of the sealing material 15 remains circular and is not deformed. And the pressurizing agent P is not discharged | emitted from the gas container 13, but the inside of the container main body 11 is also atmospheric pressure. At this time, the liquid leakage passage Lp is not hermetically sealed. When the screw cap 17 is turned tightly from this state, the sealing material 15 is compressed up and down between the pressing surface 14f and the bead 20 as shown in FIG. 2B, and the compression degree becomes the highest on the top surface of the bead 20. Form a wire seal. Further, the sealing material 15 spreads to the left and right (inside and outside) by the above-described vertical compression, the inner peripheral surface of the sealing material 15 is in close contact with the outer peripheral surface of the insertion step portion 14e of the gas container holder 14, and the outer peripheral surface of the sealing material 15 is The screw cap 17 is in close contact with the cylindrical surface 17d. As a result, the container body 11 and the outside are hermetically sealed, and the liquid leakage passage Lp is also shut off. In this state, the lower end of the housing 23 of the valve mechanism 16 presses the gas container 13 downward.

  When the gas container 13 is lowered, the air in the cylinder 14c closed by the piston 13d is compressed and urges the piston 13d upward. This upward force balances with the force that urges the stem 13c of the valve assembly 13b to protrude (downward in FIG. 1). When the force is further exceeded, the stem 13c of the valve assembly 13b is pushed in, and the pressure in the gas container 13 is increased. The agent (gas) P is released, and the pressure in the container main body 11 is increased through the gas container holder 14 and eventually through the communication hole 14j. When the pressure in the container body 11 rises and the piston 13d is pushed deeply into the cylinder 14c, the pressure in the container body 11 and the pressure in the cylinder 14c are balanced, and the pressurizing agent P is discharged from the gas container 13 any more. Disappear. This state is a state in which preparation for discharge is completed.

  When the user presses the push button attached to the stem 24 of the valve mechanism 16 from this state, the valve mechanism 16 is opened, and the stock solution C in the housing 23 pressed by the pressure of the pressurizing agent P in the container body 11 is externally exposed. Discharged. Then, the stock solution C in the container body 11 is replenished into the housing 23 through the dip tube 18, the passage in the flange 14 d of the gas container holder 14, and the gap between the housing fitting portion 17 c of the screw cap 17 and the housing 23. . At this time, since the stock solution C in the container main body 11 decreases, the pressure in the container main body 11 decreases accordingly, the balance with the pressure in the cylinder 14c is lost, and the piston 13d pushes the stem 13c into the container main body 11. When the pressure agent P in the gas container 13 is released and the pressure in the container body 11 and the pressure in the cylinder 14c are balanced, the release of the pressure agent P from the gas container 13 is stopped. In this way, the stock solution C can be discharged at a constant pressure until the stock solution C in the container body 11 runs out. The form of discharge depends on the form of the nozzle hole of the push button.

  When the stock solution C is used up, the screw cap 17 is removed to take out the gas container 13. When the screw of the screw cap 17 is loosened, the pressure contact force between the sealing material 15 and the bead 20 is weakened, the degree of compression of the line seal portion is greatly reduced, and a gas leakage passage Gp is generated in that portion, and the pressure agent in the container body 11 P comes out. However, since the sealing material 15 is still compressed in the radial direction, the sealing action between the sealing material 15 and the screw cap 17 and between the sealing material 15 and the gas container holder 14 remains, and the liquid leakage passage Lp is opened. Not. Therefore, scattering of the stock solution C can be suppressed when the screw cap 17 is opened, and only the pressure agent P can be removed to reduce the internal pressure. When the pressure in the container body 11 becomes equal to the atmospheric pressure, the screw cap 17 and the gas container holder 14 are removed, and when the pressurizing agent P remains in the gas container 13, the stock solution C is filled. The screw cap 17 can be attached again to another container body. If no pressurizing agent remains in the gas container 13, it can be replaced with a new gas container 13 and attached together with the screw cap 17. Thereby, the pressurizing agent P can be replenished from the gas container 13 to the container main body 11, and the replenishment operation of the stock solution C and the pressurizing agent P is completed.

  When the screw cap 17 is loosened, the internal pressure of the container body 11 decreases, and the stem 13c of the gas container 13 is pushed by the pressure of the air in the cylinder 14c, so that the pressurizing agent P can come out from the gas container 13. There is sex. However, when the screw cap 17 is loosened, the force with which the lower end of the housing 23 presses the gas container 13 downward is weakened, so that the stem 13c of the valve assembly 13b of the gas container 13 is hardly pushed, and the pressurizing agent P from the gas container 13 is pressed. Is prevented from being released.

  The replenishment of the pressurizing agent P can be repeated as long as the pressurizing agent remains in the gas container 13. Even if the pressurizing agent in the gas container 13 is used up, the number of reuse can be further increased by replacing the gas container 13.

  In the embodiment, as the sealing material 15, an annular sealing material having a circular cross section, a so-called O-ring is adopted. However, as in the discharge container 30 shown in FIGS. 3A and 3B, a sealing member 32 having a rectangular cross section may be employed. In this case, it is preferable that the outer diameter of the sealing material 32 is larger than the outer diameter of the bead 20 and smaller than the cylindrical surface 17d of the screw cap 17, and in this case, the lower surface of the sealing material 32 is flat. And the pressing surface 14f compresses up and down, the contact portion with the top surface of the bead 20 becomes a line seal, the sealing material 32 spreads left and right (inside and outside), and the inner peripheral surface of the sealing material 32 is the gas container holder 14 Since the outer peripheral surface of the sealing member 32 is in close contact with the outer peripheral surface of the insertion step portion 14e and the cylindrical surface 17d of the screw cap 17, almost the same effects as those of the discharge container 10 of FIGS. . In addition, since the sealing material 32 has a flat portion such as the inner periphery and the upper surface that contacts the gas container holder 14, it is stable when temporarily bonded.

  3A and 3B, the gap 33 between the outer peripheral surface of the flange 14d of the gas container holder 14 and the cylindrical surface 17d of the screw cap 17 is widened. This is to increase the vertical crushing margin of the sealing material 32 and improve the sealing function (see FIG. 3B).

  The discharge container 40 shown in FIG. 4 does not have a neck portion as the container body 11, and an annular dome member, so-called eye metal 41, is fixed to the upper end of the body part 11 b with double tightening 42. A bead 20 is formed. Then, the shoulder cover 43 is mounted so as not to rotate on the double winding tightening 42 rising upward, and the male screw 21 for screwing the screw cap 17 onto the shoulder cover 43 is provided. The shoulder cover 43 has an inverted U-shaped cross section, and a groove 44 that opens on the lower surface side is placed on the double wrap 42 and is firmly fitted so as not to rotate.

  The container main body 11 can make the bottomed cylindrical trunk | drum 11b and the metal base 41 into a different material. For example, by using an aluminum body 11b and a tin plate 41, the body 11 is strong enough to be crushed by hand, and the eye 41 is firmly attached so that the shoulder cover 43 does not rotate. can do.

  The inner peripheral surface of the annular portion 43 a outside the shoulder cover 43 is fitted with the outer peripheral surface of the trunk portion 11 b of the container body 11. Further, the inner annular portion 43b is strongly depressed and engaged with the groove 41a between the double winding 42 and the dome portion. The lower portion 45 of the screw cap 17 is expanded through the step portion 46 in order to cover the outer periphery of the shoulder cover 43. Other configurations such as the bead 20, the sealing material 15, the gas container 13, the gas container holder 14, and the piston 13d are basically the same as the corresponding parts of the discharge container 10 in FIG. The description is omitted.

  The discharge container 40 can also seal the gas leakage passage Gp and the liquid leakage passage Lp with one sealing material 15 by tightening the screw cap 17. That is, when the screw cap 17 is tightened, the sealing material 15 is pressed by the bead 20 to seal the gas leakage passage Gp, the sealing material 15 compressed vertically is spread in the radial direction, and the liquid leakage passage Lp is also sealed. When the screw cap 17 is opened, the liquid leakage passage Lp is closed even if the gas leakage passage Gp is opened, so that the stock solution is prevented from being scattered. Further, since the shoulder cover 43 is annularly arranged outside the bead 20, when the screw cap 17 is opened, the gas in the container body 11 collides with the annular portion 43 b inside the shoulder cover 43 and slowly. And released to the outside. Even if the stock solution C escapes from the sealing material 15 and is discharged, it collides with the annular portion 43b inside the shoulder cover 43 and is stored in the groove 41a, so that it is prevented from scattering to the outside.

  As mentioned above, although typical embodiment was described, this invention is not limited to these. For example, the gas container 13 may be mounted upward. The bead 20 may have an elliptical shape such as an ellipse in addition to a circular cross section. Further, a synthetic resin container body may be employed instead of the metal container body.

  In the discharge container 40 of FIG. 4, a groove 44 is provided in the shoulder cover 43 and the double winding 42 is strongly fitted in the groove to prevent rotation. However, it is also possible to form recesses and grooves in the metal eye (dome) 41 and the shoulder portion, and to provide projections that engage with the recesses and grooves in the shoulder cover 43 and engage them so as to prevent rotation. Moreover, in the discharge container 10 of FIG. 1 and FIG. 2, although the cylindrical surface 17d which contact | abuts the outer periphery of the sealing material 15 and the enlarged diameter part 17e which provided the internal thread 28 are arranged up and down, the inner side of the enlarged diameter part 17e It is also possible to provide a cylindrical wall concentrically and an internal thread 28 on the inner surface of the inner wall.

10 Discharge container 11 Container body 11a Bottom part 11b Body part 11c Shoulder part 11d Neck part 11e Mouth part 12 Valve assembly 13 Gas container 13a Body 13b Valve assembly 13c Stem 13d Piston 13e Stem mounting hole 13f Passage 14 Gas container holder 14a Body part 14b Bottom part 14c Cylinder 14d Flange 14e Insertion step 14f Pressing surface 14g Recess 14h Holding hole 14i Introduction hole 14j Communication hole 15 Sealing material 16 Valve mechanism 17 Screw cap 17a Outer peripheral portion 17b Top surface 17c Housing fitting portion 17d Cylindrical surface 17e Expanded diameter portion 17f Fitting portion 17g Upper portion 17h Lower portion 17i Clearance 17j Step portion 18 Dip tube C Stock solution P Pressurizing agent Lp Liquid leakage passage Gp Gas leakage passage 20 Bead 20a Taper portion 21 Male screw 23 Housing 23a Stem housing portion 23b Upper part 23c Lower part 23d Tube part 23e Flange 23f Passage 23g Passage groove 24 Stem 25 Spring 26 Stem rubber 27 Gasket 28 Female screw 30 Discharge container 32 Sealing material 33 Gap 40 Discharge container 41 Metal 41a Groove 42 Double winding 43 Shoulder cover 43a Annular Part 43b annular part 44 groove 45 lower part 46 step part

Claims (7)

A container body in which a bead is formed around the mouth,
A gas container for supplying gas into the container body;
A gas container holder that houses the gas container and is held in the container body;
It consists of a valve assembly that is screwed around the top of the container body and closes the mouth of the container body.
The bead has a substantially circular cross section, and a sealing material is disposed on the top of the bead,
By screwing the valve assembly, the sealing material is compressed vertically between the bead and the valve assembly.
Discharge container. The valve assembly has a screw cap, and the screw cap has a cylindrical inner peripheral surface;
The gas container holder has a cylindrical outer peripheral surface facing a cylindrical inner peripheral surface of the screw cap;
The sealing material is disposed between the cylindrical outer peripheral surface of the gas container holder and the cylindrical inner peripheral surface of the screw cap, and the cylindrical outer peripheral surface of the gas container holder and the screw cap are compressed by vertical compression. The discharge container according to claim 1, wherein the discharge container is in contact with the cylindrical inner peripheral surface. The gas container holder has a horizontal pressing surface for pressing the upper surface of the sealing material;
The discharge container according to claim 2. The screw cap has a cylindrical enlarged portion extending from the lower end of the inner peripheral surface and extending downward, and a screw portion that is screwed into the screw portion of the container body is formed on the enlarged portion.
With the screw cap attached to the container body, the lower end of the inner peripheral surface is located below the sealing material.
The discharge container according to claim 2. The shoulder cover is attached to the container body so as not to rotate,
The discharge container according to claim 1, wherein the valve assembly is screwed to the shoulder cover. The screw cap has a cylindrical enlarged portion extending from the lower end of the inner peripheral surface and extending downward, and a screw portion that is screwed into the screw portion of the shoulder cover is formed in the enlarged portion,
With the screw cap attached to the shoulder cover, the lower end of the inner peripheral surface is located below the sealing material.
The discharge container according to claim 5.   A discharge product comprising the discharge container according to claim 1, a stock solution filled in the container body, and a pressurizing agent filled in the gas container.

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