WO2021029121A1 - Reverse fixed quantity jetting mechanism for aerosol container and aerosol-type product equipped with said reverse fixed quantity jetting mechanism - Google Patents

Reverse fixed quantity jetting mechanism for aerosol container and aerosol-type product equipped with said reverse fixed quantity jetting mechanism Download PDF

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Publication number
WO2021029121A1
WO2021029121A1 PCT/JP2020/021252 JP2020021252W WO2021029121A1 WO 2021029121 A1 WO2021029121 A1 WO 2021029121A1 JP 2020021252 W JP2020021252 W JP 2020021252W WO 2021029121 A1 WO2021029121 A1 WO 2021029121A1
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Prior art keywords
contents
metering chamber
chamber
fixed quantity
annular
Prior art date
Application number
PCT/JP2020/021252
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French (fr)
Japanese (ja)
Inventor
菅野　博史
Original Assignee
株式会社三谷バルブ
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 株式会社三谷バルブ filed Critical 株式会社三谷バルブ
Priority to JP2021539821A priority Critical patent/JPWO2021029121A1/ja
Priority to CN202080043890.8A priority patent/CN113993794A/en
Priority to KR1020217037224A priority patent/KR20220044240A/en
Publication of WO2021029121A1 publication Critical patent/WO2021029121A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/44—Valves specially adapted therefor; Regulating devices
    • B65D83/52—Valves specially adapted therefor; Regulating devices for metering

Definitions

  • the contents of the container are housed in the quantification chamber in the inflow valve open state (outflow valve closed state) by the injection operation of the aerosol container, and the quantification of the outflow valve open state (inflow valve closed state) at the release stage of this injection operation.
  • the present invention relates to a reverse quantitative injection mechanism in which the contained contents of a chamber are injected into an external space area.
  • the outflow valve for injecting the contents is first closed and the inflow valve corresponding to the stem is opened, so that the contents of the container flow into the metering chamber between these valves, and the inflow valve is closed at the stage of releasing the injection operation.
  • the present invention relates to a reverse metering injection mechanism in which the contents of the metering chamber are jetted by opening the outflow valve.
  • annular moving wall provided as a component of the metering chamber is urged to shift to an injection mode of “outflow valve opening” that increases the internal pressure of the metering chamber at the stage of releasing the injection operation by elastic action.
  • the foam component in the quantification chamber is generated because the contents containing the propellant such as liquefied gas are vaporized in the quantification chamber, which is a remarkable phenomenon when the liquefied gas propellant is used.
  • the “contents" when the foam component is generated by the vaporization of the propellant in the quantitative chamber is the undiluted solution and the liquefied gas propellant. This foam formation phenomenon can also occur when a compressed gas propellant soluble in the undiluted solution is used.
  • the moving wall as a component of the metering chamber is urged by an elastic member below the drawing. Therefore, even when the propellant in the aerosol container is a compressed gas that is not substantially contained in the metering chamber (it is not substantially dissolved in the stock solution) unlike the liquefied gas, the stock solution injection state of "outflow valve open" with a high metering chamber pressure can be set. ..
  • the object of application of the present invention is an aerosol-type product for various purposes described later, such as "quantitative spout for enema foam”.
  • This quantitative injection mechanism has the convenience that a substantially fixed amount of contents is once stored in the quantitative chamber and then injected into the external space area for each pressing operation and subsequent return of the operation unit. Is.
  • the contents of the container body are once housed in the metering chamber in the "inflow valve open, outflow valve closed" state due to the content injection operation, and this metering chamber is released by releasing the injection operation.
  • the contents are jetted into the external space area.
  • the foam component generated by the vaporization of the contents containing the propellant (for example, a liquefied gas propellant) in the metering chamber may be accumulated in the metering chamber for each injection operation of the aerosol container. ..
  • the propellant for example, a liquefied gas propellant
  • the foam component generated by vaporization of the inflow propellant into the metering chamber in the inflow stock solution is sent out to the external space area by the shift operation of the metering chamber moving wall in the direction of reducing the volume of the metering chamber each time the injection operation is released. Therefore, the purpose is to prevent the accumulation of foam components in this metering chamber.
  • the jet mechanism in which the contents contained in the metering chamber are jetted to the external space area by canceling the operation is provided.
  • the purpose is to provide and enrich the reverse quantitative injection technology.
  • the moving wall of a part of the metering chamber is elastic in the decreasing direction of the metering chamber space area. It is provided in a manner of being urged by force.
  • the moving wall constituting the quantification chamber is set to the urging state in the direction of decreasing the volume of the quantification chamber by the elastic action, and while resisting this elastic urging force according to the inflow of the contents into the quantification chamber due to the injection operation. It moves in the direction of increasing the volume of the metering chamber.
  • the liquefied gas propellant and the like vaporize in the stock solution to become foam components in the metering chamber.
  • the moving wall of the metering chamber moves to the stationary mode position by the action of elastic urging force, and the outflow valve shifts from the "closed” state to the "open” state by the internal pressure of the metering chamber.
  • the contents of the quantitative chamber containing the foam component are injected into the external space area.
  • the outflow valve for injecting the contents (for example, the outflow valve C of the outward annular tapered surface 4f and the annular upper edge portion 5k described later) is closed, and the contents are closed in this outflow valve state.
  • an inflow valve for example, a lateral hole portion 4c described later and an inflow valve B of an annular gasket 4d described later
  • a metering chamber for example, a metering chamber between the inflow valve and the outflow valve
  • a first elastic member for example, the vertical inner coil spring 4h described later
  • a moving wall for example, the annular moving wall 6 described later
  • a second elastic member for example, a vertical outer coil spring 6a described later
  • the moving wall Along with the injection operation, the pressure action of the contents flowing into the metering chamber from the inflow valve in the open state moves in the direction of increasing the volume of the metering chamber while resisting the elastic force of the second elastic member. With the release of the injection operation, the elastic action of the second elastic member moves the outflow valve in the decreasing direction of the total volume to change the outflow valve from the closed state to the open state.
  • the configuration mode is used.
  • the outflow valve It is set at each annular facing portion between the stem and the outer cover head (for example, the lower cover head 5b described later).
  • the moving wall It is arranged in close contact with each of the tubular portions in an annular space area between the inner and outer tubular portions (for example, between the inner tubular portion 5d and the outer tubular portion 5e described later) constituting the cover head. ,
  • the configuration mode is used.
  • the object of the present invention is an aerosol container reverse metering injection mechanism having such a configuration and an aerosol-type product using the same.
  • the foam component generated by vaporizing the inflow injection agent into the inflowing stock solution in the inflow stock solution can be reduced in volume in the metering chamber moving wall of the metering chamber moving wall each time the injection operation is released. It can be sent out to the external space area by the shift operation to prevent the accumulation of foam components in the metering chamber.
  • the contents of the quantitative chamber are surely injected into the external space area by releasing the operation with the injection operation. , It is possible to enhance the reverse quantitative injection technology.
  • FIG. 5 is an explanatory diagram showing a content inflow mode (cover head and stem: integrally move upward in the drawing, inflow valve: open, outflow valve: closed) during an injection operation following FIG. It is explanatory drawing which shows the bottom dead center mode of the stem (cover head and stem: integrated movement downward in the drawing, fixed quantity chamber pressure: increase, inflow valve: closed, outflow valve: closed) at the initial stage of release of injection operation.
  • FIG. 5 is an explanatory diagram showing an injection mode (cover head: fine movement downward in the drawing, inflow valve: closed, outflow valve: open) when the injection operation is released following FIG.
  • FIG. 3 shows a foam component generated in the quantification chamber A
  • FIG. 4 shows the generated foam component stored in the quantification chamber A
  • FIG. 5 shows the stored foam component in the quantification chamber A passing through the outflow valve C to the external space. It shows that it moves to the area.
  • the terms “upper” and “lower” indicate the positional relationship of the aerosol type product in the illustrated inverted use state, respectively.
  • the stem is urged downward (not upward) by a coil spring.
  • A is a space area continuously set between the inflow valve and the outflow valve, and is a quantitative chamber in which the contents to be injected into the external space area due to the content injection operation are accommodated.
  • B is an inflow valve of a metering chamber A including a lateral hole portion 4c described later and an annular gasket 4d described later for opening and closing the lateral hole portion 4c.
  • C is an outflow valve of the metering chamber A, which is composed of an outward annular tapered surface 4f, which will be described later, and an annular upper edge portion 5k, which will be described later, which is in contact with and separated from the tapered surface 4f. Are shown respectively.
  • 1 is an aerosol container containing the contents to be injected and the liquefied gas as an injection agent.
  • 2 is a mounting cup attached to the lower opening of the aerosol container,
  • Reference numeral 3 denotes a housing for passing the contents, which is fitted and fixed to the mounting cup 2.
  • 3a is an opening for inflow of contents formed on the peripheral surface of the housing 3. Are shown respectively.
  • Reference numeral 4 denotes a stem whose upper portion is arranged inside the housing 3 and exhibits a well-known inflow valve action and an outflow valve action between the lower cover head 5b and the annular upper edge portion 5k described later.
  • 4a is the upper part of the stem that acts as an inflow valve
  • 4b is a lower part of the stem that fits with the upper part 4a of the stem and exhibits an outflow valve action.
  • 4c is a total of two lateral holes formed in the upper stem portion 4a to form an inflow valve.
  • 4d is a well-known annular gasket that constitutes an inflow valve with the outer opening side of the lateral hole portion 4c.
  • 4e is a total of four vertical holes formed in the lower part 4b of the stem for passing the contents.
  • 4f is an outwardly narrowing outward annular tapered surface formed on the lower end side of the lower stem portion 4b and forming an outflow valve with the annular upper edge portion 5k described later.
  • 4g is an upward annular step portion formed on the upper side of the outer peripheral surface of the lower stem portion 4b and held in an engaged state with the inner peripheral surface of the inner tubular portion 5d described later.
  • 4h is a vertical inner coil spring for urging the stem, which is arranged inside the housing 3 and urges the stem 4 to the closed state of the inflow valve B. Are shown respectively.
  • Reference numeral 5 denotes a cover head (upper cover head 5a + lower cover head 5b) engaged and held by the lower portion 4b of the stem.
  • the upper cover head 5a is composed of an annular concave portion that is open downward, and is engaged with the outer peripheral surface of the lower stem portion 4b, and an annular moving wall 6 described later is arranged in the annular internal space area thereof.
  • the lower cover head 5b is fitted and integrated with the upper cover head 5a to form an outflow valve with the outward annular tapered surface 4f of the stem 4.
  • 5c is a part of the upper cover head 5a, and is a downward annular surface that always receives the upper end side of the vertical outer coil spring 6a described later.
  • 5d is a part of the upper cover head 5a, is formed in a manner continuous downward from the inner end side of the downward annular surface 5c, and is formed between the upper cover head 5a and the outer peripheral surface (upward annular step portion 4g, etc.) of the stem lower portion 4b.
  • Inner tubular part that can move relative to the vertical direction Reference numeral 5e is a part of the upper cover head 5a, which is an outer tubular portion continuous downward from the outer end side of the downward annular surface 5c.
  • 5f is a vertical rib-shaped portion (see FIG. 3) formed in the vertical direction of the upper inner peripheral surface of the outer tubular portion 5e to set the uppermost position of the annular moving wall 6 described later.
  • 5 g is an outer peripheral concave portion formed on the upper outer peripheral end side of the lower cover head 5b and fitted with the lower end annular portion of the outer tubular portion 5e.
  • 5h is a part of the lower cover head 5b, and is an upward annular surface that receives the annular moving wall 6 described later in the stationary mode of FIG.
  • Reference numeral 5j is a central vertical tubular portion for injecting contents, which is formed in the center of the bottom portion of the metering chamber A.
  • 5k is an annular upper edge portion which is an opening side on the drawing of the central vertical tubular portion 5j and exhibits an outflow valve action with the outward annular tapered surface 4f of the stem 4.
  • 5m is a head operating portion that is fitted to the outer peripheral surface of the central vertical tubular portion 5j of the lower cover head 5b to form the horizontally oriented content passage portion shown in the drawing, and is used for a pressing operation for ejecting the content.
  • 5n is a substantially L-shaped passage portion for injecting the contents formed inside the head operation portion 5 m. Are shown respectively.
  • 6 is held by the upward annular surface 5h of the lower cover head 5b in the stationary mode of FIG. 1, and is caused by the action of the propellant accompanying the inflow of the contents into the metering chamber A by the contents injection operation of the vertical outer coil spring 6a described later.
  • An annular moving wall that moves upward while resisting elastic force, The vertical outer coil spring 6a is disposed between the downward annular surface 5c of the upper cover head 5a and the upper surface portion of the annular moving wall 6, and urges the annular moving wall 6 downward in the drawing.
  • 6b is an inner skirt-shaped portion formed on the inner peripheral end side of the annular moving wall 6 and in close contact with the outer peripheral surface of the inner tubular portion 5d of the upper cover head 5a and exhibiting a sealing action on the metering chamber A.
  • 6c is an outer skirt-shaped portion formed on the outer peripheral end side of the annular moving wall 6 and in close contact with the inner peripheral surface of the outer tubular portion 5e of the upper cover head 5a and exhibiting a sealing action on the metering chamber A.
  • 6d is an annular concave portion formed on the upper surface portion of the annular moving wall 6 and receiving the lower end side of the vertical outer coil spring 6a in the drawing.
  • 6e is a total of six vertical rib-shaped portions formed on the outer inner peripheral surface of the annular concave portion 6d to hold the so-called radial position of the vertical outer coil spring 6a.
  • 6f is formed in the inner and outer diameter directions of the lower surface portion of the annular moving wall 6, and is used for inflowing the contents into the quantitative chamber space area on the outside of the annular moving wall (between the outer tubular portion 5e of the upper cover head 5a).
  • a total of four groove-shaped parts that set the initial passage area, 6g is formed on the upper side of the outer skirt-shaped portion 6c, and by contacting the lower end surface of the vertical rib-shaped portion 5f of the upper cover head 5a, the outer annular upper surface, which defines the uppermost position of the annular moving wall 6. are shown respectively.
  • the housing 3, the stem 4, the cover head 5, the head operation portion 5 m, and the annular moving wall 6 are made of plastic made of, for example, polypropylene, polyethylene, polyacetal, nylon, polybutylene terephthalate, or the like.
  • the aerosol container 1, the vertical inner coil spring 4h, and the vertical outer coil spring 6a are made of, for example, plastic or metal.
  • the mounting cup 2 is made of metal, for example.
  • the metering chamber A is roughly an internal space area of the stem on the downstream side of the inflow valve B, an internal space area on the lower side of the inner tubular portion 5d on the upstream side of the outflow valve C, and an annular space area on the lower side of the annular moving wall 6. Is.
  • the main feature of the illustrated reverse metering injection mechanism is the direction in which the annular moving wall 6, which is a so-called component of the metering chamber A, is moved downward in the figure by the vertical outer coil spring 6a, that is, the volume of the metering chamber A to be accommodated is reduced. It is elastically urged to.
  • the foam component generated by vaporization of the inflow propellant (liquefied gas propellant) into the metering chamber A is sent out to the external space area, and the foam component is stored in the metering chamber A. It is preventing it from being done.
  • the contained contents of the quantitative chamber A are surely in the external space area not only when a liquefied gas propellant that dissolves in the contents (stock solution) is used but also when a compressed gas propellant that can be said to be insoluble in the stock solution is used. Be jetted.
  • the inflow valve B is closed and the outflow valve C is open, and the contents of the aerosol container 1 do not flow into the metering chamber A.
  • FIG. 2 shows a state in which the outflow valve C is closed immediately after the start of the content injection operation, and the content inflow space area of the metering chamber A is set.
  • the user pushes the head operation unit 5 m with a finger while holding the aerosol container 1, and moves the cover head 5 integrated with the cover head 5 and the stem 4 interlocking with the cover head 5 upward in the drawing. is there.
  • the integrated body of the cover head 5 and the head operating portion 5 m moves slightly upward with respect to the stem 4 and the aerosol container 1, and the annular upper edge portion 5k thereof is in close contact with the outward annular tapered surface 4f, so to speak, and the outflow valve C. Is set to the closed state.
  • the stem 4 is urged downward in the figure by the vertical inner coil spring 4h, and remains in the substantially stationary mode position.
  • FIG. 3 shows a state in which the inflow valve B is opened by the stem 4 moving upward with respect to the aerosol container 1 and the housing 3 in accordance with the upward injection operation shown in FIG. 2, that is, the contents of the aerosol container 1 are ". It shows a state in which the outflow valve is closed and flows into the metering chamber A and is stored there.
  • the contents of the metering chamber are the objects to be injected into the external space area when the injection operation is released.
  • a foam component in a state in which the liquefied gas propellant flowing into the metering chamber is vaporized in the inflow stock solution is generated.
  • the entire stem 4, cover head 5 and head operating portion 5 m are vertically oriented with the annular upper edge portion 5k of the cover head 5 in contact with the outward annular tapered surface 4f of the stem 4. It is moving upward while resisting the elastic force of the inner coil spring 4h.
  • the contents of the aerosol container 1 become "Opening 3a of the housing 3-Inner peripheral surface of the housing 3 and outer peripheral surface of the stem upper portion 4a in the annular and vertical gap space area-Horizontal hole portion 4c-Inside the stem 4 in the vertical direction" It flows into the metering chamber A through the space area-vertical hole portion 4e of the stem 4 or the like.
  • the annular moving wall 6 that moves upward in the drawing stops in a state where its outer annular upper surface 6g is in contact with the lower end surface portion of the vertical rib-shaped portion 5f of the outer tubular portion 5e.
  • FIG. 4 shows an inflow valve “closed” state in which the stem 4 immediately after the injection operation is released following FIG. 3 returns to the initial position (stationary mode position in FIG. 1) below the drawing due to the elastic action of the vertical inner coil spring 4h. There is.
  • the cover head 5 is interlocked with the stem 4 that returns downward with respect to the aerosol container 1 and the housing 3, and the outward annular tapered surface 4f and the annular upper edge portion 5k of the outflow valve C. Are in contact.
  • both the inflow valve B and the outflow valve C are in the "closed” state.
  • the contents of the aerosol container 1 are already stored in the metering chamber A by the route shown in FIG.
  • the foam component of FIG. 3 is also housed in the quantitative chamber A.
  • the annular moving wall 6 constituting the metering chamber A is driven downward in the drawing by the elastic action of the vertical outer coil spring 6a, and the contents containing the foam component are driven. Since it is compressed, the internal pressure of the metering chamber A is high.
  • the cover head 5 moves downward in the figure with respect to the stem 4.
  • the stem 4 remains in the initial position (stationary mode position) with respect to the housing 3 as shown in FIGS. 4 and 5.
  • the content containing the foam component of the metering chamber A is external from the passage portion 5n of the head operation portion 5 m in the black arrow path of FIG. 5 via the outflow valve C shifted to the open state. It is sprayed into the space area.
  • the reverse metering injection mechanism shown in the figure is intended for inverted use, the present invention is not limited to this, and of course, it can be applied to the case of upright use in which the cover head 5 is set on the upper side. In this case, the vertical positional relationship is opposite to that described in the present specification.
  • Aerosol-type products to which the present invention is applied include cleaning agents, cleaning agents, cooling agents, muscle anti-inflammatory agents, hair growth agents, hair dyes, hair styling agents, hair treatment agents, sunscreens, lotions, cleansing agents, and controls. Sweat, cosmetics, shaving foam, food, droplets (vitamins, etc.), pharmaceuticals, quasi-drugs, gardening agents, insecticides, pest repellents, animal repellents, deodorants, wash paste, fire extinguishing There are various uses such as vessels, paints, adhesives, lubricants, and urethane foams.
  • the contents contained in the aerosol container various forms such as liquid, cream, and gel are used.
  • the components to be blended in the contents are, for example, powders, oil components, alcohols, surfactants, polymer compounds, active ingredients according to each application, water and the like.
  • metal salt powder inorganic powder, resin powder, or the like.
  • talc kaolin, aluminum hydroxychloride (aluminum salt), calcium alginate, gold powder, silver powder, mica, carbonate, magnesium chloride, silica, zinc oxide, titanium oxide, zeolite, nylon powder, barium sulfate, cellulose, and mixtures thereof. Etc. are used.
  • the oil components include silicone oil such as dimethylpolysiloxane, ester oil such as isopropyl myristate, palm oil, eucalyptus oil, camellia oil, olive oil, jojoba oil and other fats and oils, liquid paraffin and other hydrocarbon oils, myristic acid and palmitin.
  • silicone oil such as dimethylpolysiloxane
  • ester oil such as isopropyl myristate, palm oil, eucalyptus oil, camellia oil, olive oil, jojoba oil and other fats and oils, liquid paraffin and other hydrocarbon oils, myristic acid and palmitin.
  • fatty acids such as acid, stearic acid, linoleic acid, and linolenic acid.
  • monohydric lower alcohols such as ethanol
  • monohydric higher alcohols such as lauryl alcohol and cetanol
  • ethylene glycol such as 1,3-butylene glycol and glycerin
  • polyhydric alcohols such as 1,3-butylene glycol and glycerin
  • Surfactants include anionic surfactants such as sodium lauryl sulfate, nonionic surfactants such as polyoxyethylene alkyl ethers and polyglycerin fatty acid esters, amphoteric surfactants such as betaine lauryl dimethylaminoacetate, and alkyl chlorides.
  • anionic surfactants such as sodium lauryl sulfate
  • nonionic surfactants such as polyoxyethylene alkyl ethers and polyglycerin fatty acid esters
  • amphoteric surfactants such as betaine lauryl dimethylaminoacetate
  • alkyl chlorides such as betaine lauryl dimethylaminoacetate
  • a cationic surfactant such as trimethylammonium is used.
  • polymer compound hydroxyethyl cellulose, methyl cellulose, gelatin, starch, casein, xanthan gum, carboxyvinyl polymer, etc. are used.
  • Active ingredients according to each application include dyes such as paraphenylenediamine and aminophenol, oxidizing agents such as hydrogen peroxide solution, setting agents such as acrylic resin and wax, and ultraviolet rays such as 2-ethylhexyl paramethoxysilicate.
  • Absorbents vitamins such as retinol and dl- ⁇ -tocopherol, moisturizers such as hyaluronic acid, anti-inflammatory analgesics such as methyl salicylate and indomethacin, disinfectants such as sodium benzoate and cresol, pests such as pyrethroids and diethyl tolamide Repellents, antiperspirants such as zinc paraphenol sulfonate, refreshing agents such as camphor and menthol, anti-asthmatic agents such as ephedrine and adrenaline, sweeteners such as scullose and aspartame, adhesives and paints such as epoxy resin and urethane, Use dyes such as paraphenylenediamine and aminophenol, oxidizing agents such as hydrogen peroxide solution, and fire extinguishing agents such as ammonium dihydrogen phosphate and sodium hydrogen carbonate / potassium.
  • moisturizers such as hyaluronic acid
  • anti-inflammatory analgesics such as
  • suspension agents emulsifiers, antioxidants, sequestrants, etc. other than the above contents can also be used.
  • liquefied petroleum gas dimethyl ether, hydrofluoroolefin or other liquefied gas, or compressed gas such as carbon dioxide gas, nitrogen gas, compressed air, nitrous oxide, oxygen gas, rare gas, or a mixed gas thereof is used. ..
  • Stem 4a Stem upper part 4b: Stem lower part 4c: Horizontal hole part 4d: Circular gasket 4e: Vertical hole part 4f: Outward annular tapered surface 4g: Upward annular step part 4h: Vertical inner coil spring
  • Cover head 5a Upper cover head 5b: Lower cover head 5c: Downward annular surface 5d: Inner tubular portion 5e: Outer tubular portion 5f: Vertical rib-shaped portion (see FIG. 3) 5g: Outer peripheral concave portion 5h: Upward annular surface 5j: Central vertical tubular portion 5k: Circular upper edge portion 5m: Head operation portion 5n: Approximately L-shaped passage portion
  • Circular moving wall 6a Vertical outer coil spring 6b: Inner skirt-shaped portion 6c: Outer skirt-shaped portion 6d: Ring concave portion 6e: Vertical rib-shaped portion 6f: Groove-shaped portion

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  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Nozzles (AREA)

Abstract

In this reverse fixed quantity jetting mechanism that discharges the content contained in a fixed quantity chamber in a step for releasing a jet operation, the storage of bubble components in the fixed quantity chamber is inhibited.　In this reverse fixed quantity jetting mechanism, a content including a jet agent such as a liquefied gas is introduced into a fixed quantity chamber A between an inlet valve B and an outlet valve C from a container body side by closing the outlet valve C and opening the inlet valve B on the basis of a jet operation, and then, in a step for releasing the jet operation, the content, in which bubble components are generated, is jetted to the outside from the fixed quantity chamber A by closing the inlet valve B and opening the outlet valve C. The fixed quantity chamber A is provided with an annular movable wall 6 and a longitudinal outside coil spring 6a that biases the annular movable wall 6 in a direction in which the volume of the fixed quantity chamber A is reduced. The fixed quantity chamber A expands by a pressure action of the content introduced from the container body side, and the fixed quantity chamber A contracts when the content in which bubble components are generated is jetted to the outside, thereby inhibiting storage.

Description

エアゾール容器の逆定量噴射機構およびこの逆定量噴射機構を備えたエアゾール式製品Aerosol type product equipped with reverse metering injection mechanism for aerosol container and this reverse metering injection mechanism
　本発明は、エアゾール容器の噴射操作により流入弁開状態（流出弁閉状態）の定量室に容器内容物を収容し、この噴射操作の解除段階で流出弁開状態（流入弁閉状態）の定量室の収容内容物が外部空間域に噴射される形の逆定量噴射機構に関する。 In the present invention, the contents of the container are housed in the quantification chamber in the inflow valve open state (outflow valve closed state) by the injection operation of the aerosol container, and the quantification of the outflow valve open state (inflow valve closed state) at the release stage of this injection operation. The present invention relates to a reverse quantitative injection mechanism in which the contained contents of a chamber are injected into an external space area.
　押圧操作などの内容物噴射操作において、その終了後の操作部の初期状態復帰動作により定量室内容物を噴射するようにした逆定量噴射機構である。 It is a reverse quantitative injection mechanism that injects the contents of the quantitative chamber by the initial state return operation of the operation unit after the completion of the content injection operation such as the pressing operation.
　すなわち、噴射操作に基づき先ず内容物噴射用の流出弁が閉じてステム対応の流入弁が開くことによりこれら弁間の定量室に容器内容物が流入し、噴射操作解除段階で流入弁が閉じて流出弁が開くことにより定量室内容物が噴射される逆定量噴射機構に関する。 That is, based on the injection operation, the outflow valve for injecting the contents is first closed and the inflow valve corresponding to the stem is opened, so that the contents of the container flow into the metering chamber between these valves, and the inflow valve is closed at the stage of releasing the injection operation. The present invention relates to a reverse metering injection mechanism in which the contents of the metering chamber are jetted by opening the outflow valve.
　本発明では、この定量室の構成要素として設けた例えば環状の移動壁を、弾性作用により、噴射操作解除段階の定量室の内圧を高める「流出弁開」の噴射モードへのシフト態様に付勢している。 In the present invention, for example, an annular moving wall provided as a component of the metering chamber is urged to shift to an injection mode of “outflow valve opening” that increases the internal pressure of the metering chamber at the stage of releasing the injection operation by elastic action. doing.
　この移動壁シフトにともない、定量室で発生済みの後述の泡成分も流出弁を経て外部空間域へといわば押し出されるので、定量室に、噴射操作ごとの流入噴射剤から生じるこの泡成分が累積されることはない。 Along with this movement wall shift, the foam component described later that has been generated in the metering chamber is also pushed out to the external space area through the outflow valve, so that the foam component generated from the inflow propellant for each injection operation is accumulated in the metering chamber. Will not be done.
　ここで定量室内部の泡成分が生じるのは、液化ガスなどの噴射剤を含む内容物が定量室中で気化するためであり、液化ガス噴射剤を用いる場合に顕著な現象といえる。 Here, the foam component in the quantification chamber is generated because the contents containing the propellant such as liquefied gas are vaporized in the quantification chamber, which is a remarkable phenomenon when the liquefied gas propellant is used.
　このような定量室内部における噴射剤気化により泡成分が生成される時の「内容物」は、原液および液化ガス噴射剤である。また、この泡生成現象は原液に可溶な圧縮ガス噴射剤を用いる場合にも生じえる。 The "contents" when the foam component is generated by the vaporization of the propellant in the quantitative chamber is the undiluted solution and the liquefied gas propellant. This foam formation phenomenon can also occur when a compressed gas propellant soluble in the undiluted solution is used.
　一方、原液に不溶な圧縮ガス噴射剤を用いる場合にはこのような定量室での実質的な泡生成現象は生じない。 On the other hand, when an insoluble compressed gas propellant is used in the undiluted solution, such a substantial bubble generation phenomenon does not occur in the metering chamber.
　また、本発明では、定量室の構成要素としての前記移動壁を図示下方に弾性部材で付勢している。そのためエアゾール容器での噴射剤が液化ガスと違って定量室に略収容されない（原液に略溶解しない）圧縮ガスの場合にも、定量室内圧が高い「流出弁開」の原液噴射状態を設定できる。 Further, in the present invention, the moving wall as a component of the metering chamber is urged by an elastic member below the drawing. Therefore, even when the propellant in the aerosol container is a compressed gas that is not substantially contained in the metering chamber (it is not substantially dissolved in the stock solution) unlike the liquefied gas, the stock solution injection state of "outflow valve open" with a high metering chamber pressure can be set. ..
　本発明の適用対象は「注腸フォーム用定量スパウト」など後述の各種用途のエアゾール式製品である。 The object of application of the present invention is an aerosol-type product for various purposes described later, such as "quantitative spout for enema foam".
　本明細書における「上」，「下」の用語はそれぞれエアゾール式製品の後述の図示倒立状態における上下位置関係を示している。ただし、次の背景技術の説明では正立状態での上下位置関係を示す。 The terms "upper" and "lower" in this specification indicate the vertical positional relationship of the aerosol type product in the illustrated inverted state described later, respectively. However, the following explanation of the background technology shows the vertical positional relationship in the upright state.
　本件出願人は、内容物噴射操作（例えば押下げ操作）により、「流入弁開，流出弁閉」の定量室に容器内容物を充填し、操作終了後の操作部復帰時に「流入弁閉，流出弁開」として定量室内容物を噴射する逆定量噴射機構を提案済みである（特許文献１参照）。 The applicant fills the container contents in the "inflow valve open, outflow valve close" metering chamber by the content injection operation (for example, push-down operation), and when the operation unit returns after the operation is completed, the "inflow valve close, A reverse quantitative injection mechanism for injecting the contents of the quantitative chamber has been proposed as "outflow valve opening" (see Patent Document 1).
　この定量噴射機構は、一回の押下げ操作およびその後の操作部復帰ごとに、略一定量の内容物が定量室にいったん収容されてから外部空間域に噴射されるといった利便性を備えたものである。 This quantitative injection mechanism has the convenience that a substantially fixed amount of contents is once stored in the quantitative chamber and then injected into the external space area for each pressing operation and subsequent return of the operation unit. Is.
特開２００７－２０４１３８号JP-A-2007-204138
　上述したように、従来の逆定量噴射機構は、内容物噴射操作にともない「流入弁開，流出弁閉」状態の定量室に容器本体内容物がいったん収容されて、噴射操作解除によりこの定量室内容物が外部空間域に噴射される態様になっている。 As described above, in the conventional reverse metering injection mechanism, the contents of the container body are once housed in the metering chamber in the "inflow valve open, outflow valve closed" state due to the content injection operation, and this metering chamber is released by releasing the injection operation. The contents are jetted into the external space area.
　そして、定量室で噴射剤（例えば液化ガス噴射剤）を含む内容物が気化することにより生じた泡成分が、エアゾール容器の噴射操作ごとに、定量室内部でいわば累積されていくことが生じえる。 Then, the foam component generated by the vaporization of the contents containing the propellant (for example, a liquefied gas propellant) in the metering chamber may be accumulated in the metering chamber for each injection operation of the aerosol container. ..
　なお、ここでの定量室内容物が外部空間域に噴射されるのは、概略、容器本体原液の噴射剤として液化ガスを用いているからである。 The reason why the contents of the quantitative chamber here are injected into the external space area is that liquefied gas is generally used as the propellant for the stock solution of the container body.
　本発明は、定量室への流入噴射剤が流入原液中で気化して生じる泡成分を、噴射操作解除ごとの定量室移動壁の定量室小容量化方向へのシフト動作で外部空間域に送り出して、この定量室への泡成分の貯留阻止化を図ることを目的とする。 In the present invention, the foam component generated by vaporization of the inflow propellant into the metering chamber in the inflow stock solution is sent out to the external space area by the shift operation of the metering chamber moving wall in the direction of reducing the volume of the metering chamber each time the injection operation is released. Therefore, the purpose is to prevent the accumulation of foam components in this metering chamber.
　また、噴射剤として原液と溶解する液化ガスのみならず、液化しにくい圧縮ガスを用いる場合にも、噴射操作で定量室に収容した内容物が操作解除により外部空間域に噴射される噴射機構を提供して、逆定量噴射技術の豊富化を図ることを目的とする。 Further, when not only the liquefied gas that dissolves in the undiluted solution but also the compressed gas that is difficult to liquefy is used as the propellant, the jet mechanism in which the contents contained in the metering chamber are jetted to the external space area by canceling the operation is provided. The purpose is to provide and enrich the reverse quantitative injection technology.
　そのため、本発明は、定量室の内圧によりその収容内容物が外部空間域に噴射されるときのいわば噴射用駆動源として、定量室一部の移動壁を、定量室空間域の減少方向へ弾性力で付勢される態様で設けている。 Therefore, in the present invention, as a so-called driving source for injection when the contained contents are injected into the external space area by the internal pressure of the metering chamber, the moving wall of a part of the metering chamber is elastic in the decreasing direction of the metering chamber space area. It is provided in a manner of being urged by force.
　すなわち、定量室を構成する移動壁が、弾性作用で定量室容量減少方向への付勢状態に設定され、噴射操作にともなう定量室への内容物流入に応じてこの弾性付勢力に抗しながら定量室容量の増加方向に移動する。 That is, the moving wall constituting the quantification chamber is set to the urging state in the direction of decreasing the volume of the quantification chamber by the elastic action, and while resisting this elastic urging force according to the inflow of the contents into the quantification chamber due to the injection operation. It moves in the direction of increasing the volume of the metering chamber.
　この定量室への内容物（原液，噴射剤）流入にともない、上述したように、その液化ガス噴射剤などが原液中で気化して定量室内部の泡成分となる。 As the contents (stock solution, propellant) flow into the metering chamber, as described above, the liquefied gas propellant and the like vaporize in the stock solution to become foam components in the metering chamber.
　利用者の噴射操作解除後は、定量室の移動壁が弾性付勢力の作用で静止モード位置へと移動し、定量室の内圧により「閉」状態から「開」状態へシフトする流出弁から、泡成分を含む定量室内容物が外部空間域に噴射される。 After the user cancels the injection operation, the moving wall of the metering chamber moves to the stationary mode position by the action of elastic urging force, and the outflow valve shifts from the "closed" state to the "open" state by the internal pressure of the metering chamber. The contents of the quantitative chamber containing the foam component are injected into the external space area.
　本発明は、以上の課題を次のようにして解決する。
（１）エアゾール容器に対する噴射操作に基づき、内容物噴射用の流出弁（例えば後述の外向き環状テーパ面４ｆおよび環状上縁部分５ｋの流出弁Ｃ）が閉じ、この流出弁閉状態で内容物通路態様のステム（例えば後述のステム４）からなる流入弁（例えば後述の横孔部４ｃおよび環状ガスケット４ｄの流入弁Ｂ）が開くことによりこの流入弁と前記流出弁との間の定量室（例えば後述の定量室Ａ）に容器本体側から内容物が流入し、かつ、前記噴射操作の解除段階で前記流入弁が閉じて前記流出弁が開くことにより前記定量室への流入済み内容物が外部へ噴射されるエアゾール容器の逆定量噴射機構において、
前記ステムを前記流入弁の閉状態に付勢する第一の弾性部材（例えば後述の縦内側コイルスプリング４ｈ）と、
前記定量室の構成要素であって定量室容積を変化させるための移動壁（例えば後述の環状移動壁６）と、
前記移動壁を前記定量室容積の減少方向に付勢する第二の弾性部材（例えば後述の縦外側コイルスプリング６ａ）と、を備え、
前記移動壁は、
前記噴射操作にともない、開状態の前記流入弁から前記定量室へ流入する内容物の圧力作用で前記第二の弾性部材の弾性力に抗しながら、前記定量室容積の増加方向に移動し、
前記噴射操作の解除にともない、前記第二の弾性部材の弾性作用で前記全体容積の減少方向に移動して前記流出弁をそれまでの閉状態から開状態に変化させる、
構成態様のものを用いる。
（２）上記（１）において、
前記内容物は、
原液および液化ガス噴射剤であり、
前記移動壁は、
前記定量室容積の減少方向に移動して、前記定量室の前記液化ガス噴射剤が原液中で気化することにより生じる泡成分を、開状態の前記流出弁から流出させる、
構成態様のものを用いる。
（３）上記（１），（２）において、
前記流出弁は、
前記ステムとその外回りのカバーヘッド（例えば後述の下カバーヘッド５ｂ）との環状の各対向部分で設定され、
前記移動壁は、
前記カバーヘッドを構成する内外の各筒状部の間（例えば後述の内筒状部５ｄおよび外筒状部５ｅの間）の環状空間域に前記各筒状部との密接状態で配設された、
構成態様のものを用いる。 The present invention solves the above problems as follows.
(1) Based on the injection operation on the aerosol container, the outflow valve for injecting the contents (for example, the outflow valve C of the outward annular tapered surface 4f and the annular upper edge portion 5k described later) is closed, and the contents are closed in this outflow valve state. When an inflow valve (for example, a lateral hole portion 4c described later and an inflow valve B of an annular gasket 4d described later) composed of a stem (for example, a stem 4 described later) is opened, a metering chamber (for example, a metering chamber between the inflow valve and the outflow valve) For example, the contents flow into the quantification chamber A) described later from the container body side, and the inflow valve closes and the outflow valve opens at the release stage of the injection operation, so that the contents that have already flowed into the quantification chamber In the reverse quantitative injection mechanism of the aerosol container that is injected to the outside,
A first elastic member (for example, the vertical inner coil spring 4h described later) that urges the stem to the closed state of the inflow valve, and
A moving wall (for example, the annular moving wall 6 described later) that is a component of the metering chamber and for changing the volume of the metering chamber,
A second elastic member (for example, a vertical outer coil spring 6a described later) that urges the moving wall in a decreasing direction of the volume of the metering chamber is provided.
The moving wall
Along with the injection operation, the pressure action of the contents flowing into the metering chamber from the inflow valve in the open state moves in the direction of increasing the volume of the metering chamber while resisting the elastic force of the second elastic member.
With the release of the injection operation, the elastic action of the second elastic member moves the outflow valve in the decreasing direction of the total volume to change the outflow valve from the closed state to the open state.
The configuration mode is used.
(2) In (1) above
The contents are
Undiluted solution and liquefied gas propellant,
The moving wall
The foam component generated by the vaporization of the liquefied gas propellant in the quantification chamber in the stock solution by moving in the direction of decreasing the volume of the quantification chamber is discharged from the outflow valve in the open state.
The configuration mode is used.
(3) In the above (1) and (2),
The outflow valve
It is set at each annular facing portion between the stem and the outer cover head (for example, the lower cover head 5b described later).
The moving wall
It is arranged in close contact with each of the tubular portions in an annular space area between the inner and outer tubular portions (for example, between the inner tubular portion 5d and the outer tubular portion 5e described later) constituting the cover head. ,
The configuration mode is used.
　このような構成からなるエアゾール容器の逆定量噴射機構およびこれを用いたエアゾール式製品を本発明の対象としている。 The object of the present invention is an aerosol container reverse metering injection mechanism having such a configuration and an aerosol-type product using the same.
　本発明は、以上の構成をとることにより、定量室への流入噴射剤が流入原液中で気化して生じる泡成分を、噴射操作解除ごとの定量室移動壁の定量室小容量化方向へのシフト動作で外部空間域に送り出して、定量室への泡成分の貯留阻止化を図ることができる。 In the present invention, by adopting the above configuration, the foam component generated by vaporizing the inflow injection agent into the inflowing stock solution in the inflow stock solution can be reduced in volume in the metering chamber moving wall of the metering chamber moving wall each time the injection operation is released. It can be sent out to the external space area by the shift operation to prevent the accumulation of foam components in the metering chamber.
　また、内容物(原液)と溶解する液化ガスのみならず、液化しにくい圧縮ガスを噴射剤に用いる場合も、噴射操作にともない定量室内容物がその操作解除で外部空間域に確実に噴射され、逆定量噴射技術の豊富化を図ることができる。 Further, when not only the liquefied gas that dissolves with the contents (stock solution) but also the compressed gas that is difficult to liquefy is used as the propellant, the contents of the quantitative chamber are surely injected into the external space area by releasing the operation with the injection operation. , It is possible to enhance the reverse quantitative injection technology.
本発明の静止モード（流入弁：閉，流出弁：開）を示す説明図である。It is explanatory drawing which shows the stationary mode (inflow valve: closed, outflow valve: open) of this invention. 噴射操作初期の定量室設定モード（カバーヘッド：図示上方へ微動，流入弁：閉，流出弁：閉）を示す説明図である。It is explanatory drawing which shows the quantitative chamber setting mode (cover head: fine movement upward in the figure, inflow valve: closed, outflow valve: closed) at the initial stage of injection operation. 図２に続く噴射操作時の定量室への内容物流入モード（カバーヘッドおよびステム：図示上方へ一体移動，流入弁：開，流出弁：閉）を示す説明図である。FIG. 5 is an explanatory diagram showing a content inflow mode (cover head and stem: integrally move upward in the drawing, inflow valve: open, outflow valve: closed) during an injection operation following FIG. 噴射操作解除初期のステム下死点モード（カバーヘッドおよびステム：図示下方へ一体移動，定量室内圧：増加，流入弁：閉，流出弁：閉）を示す説明図である。It is explanatory drawing which shows the bottom dead center mode of the stem (cover head and stem: integrated movement downward in the drawing, fixed quantity chamber pressure: increase, inflow valve: closed, outflow valve: closed) at the initial stage of release of injection operation. 図４に続く噴射操作解除時の定量室内容物の噴射モード（カバーヘッド：図示下方へ微動，流入弁：閉，流出弁：開）を示す説明図である。FIG. 5 is an explanatory diagram showing an injection mode (cover head: fine movement downward in the drawing, inflow valve: closed, outflow valve: open) when the injection operation is released following FIG.
　図１乃至図５を用いて、本発明を実施するための形態を説明する。
　ここでは概略、図３は定量室Ａで泡成分が発生し、図４はその発生泡成分が定量室Ａに貯留され、図５は定量室Ａの貯留泡成分が流出弁Ｃを経て外部空間域に移動することを示している。 A mode for carrying out the present invention will be described with reference to FIGS. 1 to 5.
Here, roughly, FIG. 3 shows a foam component generated in the quantification chamber A, FIG. 4 shows the generated foam component stored in the quantification chamber A, and FIG. 5 shows the stored foam component in the quantification chamber A passing through the outflow valve C to the external space. It shows that it moves to the area.
　液化ガス噴射剤や原液可溶な圧縮ガス噴射剤を用いる場合の、その原液中での気化にともなう上述の定量室泡成分の累積が問題となる。 When a liquefied gas propellant or a compressed gas propellant soluble in the stock solution is used, the accumulation of the above-mentioned quantitative chamber foam components due to vaporization in the stock solution becomes a problem.
　上述したように「上」，「下」の用語はそれぞれエアゾール式製品の図示倒立使用状態における位置関係を示している。例えばステムはコイルスプリングによって（上方ではなく）下方に付勢される、といった記載になる。 As mentioned above, the terms "upper" and "lower" indicate the positional relationship of the aerosol type product in the illustrated inverted use state, respectively. For example, the stem is urged downward (not upward) by a coil spring.
　図１～図５において、
Ａは流入弁から流出弁までの間に連続設定された空間域であって、内容物噴射操作にともない外部空間域への噴射対象内容物が収容される定量室，
Ｂは後述の横孔部４ｃおよびこれを開閉する後述の環状ガスケット４ｄからなる定量室Ａの流入弁，
Ｃは後述の外向き環状テーパ面４ｆおよびこれと接離する後述の環状上縁部分５ｋからなる定量室Ａの流出弁，
をそれぞれ示している。 In FIGS. 1 to 5,
A is a space area continuously set between the inflow valve and the outflow valve, and is a quantitative chamber in which the contents to be injected into the external space area due to the content injection operation are accommodated.
B is an inflow valve of a metering chamber A including a lateral hole portion 4c described later and an annular gasket 4d described later for opening and closing the lateral hole portion 4c.
C is an outflow valve of the metering chamber A, which is composed of an outward annular tapered surface 4f, which will be described later, and an annular upper edge portion 5k, which will be described later, which is in contact with and separated from the tapered surface 4f.
Are shown respectively.
　また、
１は噴射対象としての内容物および噴射剤としての液化ガスなどを収容したエアゾール容器，
２はエアゾール容器の下開口部に取り付けられたマウンティングカップ，
３はマウンティングカップ２に嵌合固定された内容物通過用のハウジング，
３ａはハウジング３の周面に形成された内容物流入用の開口部，
をそれぞれ示している。 Also,
1 is an aerosol container containing the contents to be injected and the liquefied gas as an injection agent.
2 is a mounting cup attached to the lower opening of the aerosol container,
Reference numeral 3 denotes a housing for passing the contents, which is fitted and fixed to the mounting cup 2.
3a is an opening for inflow of contents formed on the peripheral surface of the housing 3.
Are shown respectively.
　また、
４はその上側部分がハウジング３の内部に配設されて周知の流入弁作用および後述の下カバーヘッド５ｂの環状上縁部分５ｋとの間の流出弁作用を呈するステム，
４ａは流入弁作用を呈するステム上部分，
４ｂはステム上部分４ａと嵌合して流出弁作用を呈するステム下部分，
４ｃはステム上部分４ａに形成されて流入弁を構成する計二個の横孔部，
４ｄは横孔部４ｃの外開口側との間で流入弁を構成する周知の環状ガスケット，
４ｅはステム下部分４ｂに形成された内容物通過用の計四個の縦孔部，
４ｆはステム下部分４ｂの下端側に形成されて後述の環状上縁部分５ｋとの間で流出弁を構成する下狭まりの外向き環状テーパ面，
４ｇはステム下部分４ｂの外周面上側に形成されて後述の内筒状部５ｄの内周面との係合状態に保持される上向き環状段部，
４ｈはハウジング３の内部に配設されてステム４をその流入弁Ｂの閉状態に付勢するステム付勢用の縦内側コイルスプリング，
をそれぞれ示している。 Also,
Reference numeral 4 denotes a stem whose upper portion is arranged inside the housing 3 and exhibits a well-known inflow valve action and an outflow valve action between the lower cover head 5b and the annular upper edge portion 5k described later.
4a is the upper part of the stem that acts as an inflow valve,
4b is a lower part of the stem that fits with the upper part 4a of the stem and exhibits an outflow valve action.
4c is a total of two lateral holes formed in the upper stem portion 4a to form an inflow valve.
4d is a well-known annular gasket that constitutes an inflow valve with the outer opening side of the lateral hole portion 4c.
4e is a total of four vertical holes formed in the lower part 4b of the stem for passing the contents.
4f is an outwardly narrowing outward annular tapered surface formed on the lower end side of the lower stem portion 4b and forming an outflow valve with the annular upper edge portion 5k described later.
4g is an upward annular step portion formed on the upper side of the outer peripheral surface of the lower stem portion 4b and held in an engaged state with the inner peripheral surface of the inner tubular portion 5d described later.
4h is a vertical inner coil spring for urging the stem, which is arranged inside the housing 3 and urges the stem 4 to the closed state of the inflow valve B.
Are shown respectively.
　また、
５はステム下部分４ｂに係合保持されたカバーヘッド（上カバーヘッド５ａ＋下カバーヘッド５ｂ），
５ａは下開放の環凹状部からなり、ステム下部分４ｂの外周面に係合してその環状内部空間域に後述の環状移動壁６が配設された上カバーヘッド，
５ｂは上カバーヘッド５ａに嵌合一体化されて、ステム４の外向き環状テーパ面４ｆとの間で流出弁を構成する下カバーヘッド，
５ｃは上カバーヘッド５ａの一部であって、常時、後述の縦外側コイルスプリング６ａの上端側を受ける下向き環状面，
５ｄは上カバーヘッド５ａの一部であって、下向き環状面５ｃの内端側から下方に連続する態様で形成され、ステム下部分４ｂの外周面（上向き環状段部４ｇなど）との間で上下方向の相対移動が可能な内筒状部，
５ｅは上カバーヘッド５ａの一部であって、下向き環状面５ｃの外端側から下方に連続する外筒状部，
５ｆは外筒状部５ｅの図示上側内周面の上下方向に形成されて、後述の環状移動壁６の最上位置を設定する縦リブ状部（図３参照），
５ｇは下カバーヘッド５ｂの上外周端側に形成されて、外筒状部５ｅの下端環状部分と嵌合する外周回凹状部，
５ｈは下カバーヘッド５ｂの一部であって、図１の静止モードのとき後述の環状移動壁６を受ける上向き環状面，
５ｊは定量室Ａの底部分中央に形成された内容物噴射用の中央縦筒状部，
５ｋは中央縦筒状部５ｊの図示上開口側であってステム４の外向き環状テーパ面４ｆとの間の流出弁作用を呈する環状上縁部分，
５ｍは下カバーヘッド５ｂの中央縦筒状部５ｊの外周面に嵌合して図示横向きの内容物通路部を形成し、かつ内容物噴射用の押圧操作に用いられるヘッド操作部，
５ｎはヘッド操作部５ｍの内部に形成された内容物噴射用で略Ｌ字状の通路部，
をそれぞれ示している。 Also,
Reference numeral 5 denotes a cover head (upper cover head 5a + lower cover head 5b) engaged and held by the lower portion 4b of the stem.
The upper cover head 5a is composed of an annular concave portion that is open downward, and is engaged with the outer peripheral surface of the lower stem portion 4b, and an annular moving wall 6 described later is arranged in the annular internal space area thereof.
The lower cover head 5b is fitted and integrated with the upper cover head 5a to form an outflow valve with the outward annular tapered surface 4f of the stem 4.
5c is a part of the upper cover head 5a, and is a downward annular surface that always receives the upper end side of the vertical outer coil spring 6a described later.
5d is a part of the upper cover head 5a, is formed in a manner continuous downward from the inner end side of the downward annular surface 5c, and is formed between the upper cover head 5a and the outer peripheral surface (upward annular step portion 4g, etc.) of the stem lower portion 4b. Inner tubular part that can move relative to the vertical direction,
Reference numeral 5e is a part of the upper cover head 5a, which is an outer tubular portion continuous downward from the outer end side of the downward annular surface 5c.
5f is a vertical rib-shaped portion (see FIG. 3) formed in the vertical direction of the upper inner peripheral surface of the outer tubular portion 5e to set the uppermost position of the annular moving wall 6 described later.
5 g is an outer peripheral concave portion formed on the upper outer peripheral end side of the lower cover head 5b and fitted with the lower end annular portion of the outer tubular portion 5e.
5h is a part of the lower cover head 5b, and is an upward annular surface that receives the annular moving wall 6 described later in the stationary mode of FIG.
Reference numeral 5j is a central vertical tubular portion for injecting contents, which is formed in the center of the bottom portion of the metering chamber A.
5k is an annular upper edge portion which is an opening side on the drawing of the central vertical tubular portion 5j and exhibits an outflow valve action with the outward annular tapered surface 4f of the stem 4.
5m is a head operating portion that is fitted to the outer peripheral surface of the central vertical tubular portion 5j of the lower cover head 5b to form the horizontally oriented content passage portion shown in the drawing, and is used for a pressing operation for ejecting the content.
5n is a substantially L-shaped passage portion for injecting the contents formed inside the head operation portion 5 m.
Are shown respectively.
　また、
６は図１の静止モードのとき下カバーヘッド５ｂの上向き環状面５ｈに保持されて、内容物噴射操作による定量室Ａへの内容物流入にともなう噴射剤作用で後述の縦外側コイルスプリング６ａの弾性力に抗しながら上動する環状移動壁，
６ａは上カバーヘッド５ａの下向き環状面５ｃと環状移動壁６の上面部分との間に配設されて、環状移動壁６を図示下方に付勢する縦外側コイルスプリング，
６ｂは環状移動壁６の内周端側に形成されて上カバーヘッド５ａの内筒状部５ｄの外周面と密接し、定量室Ａへのシール作用を呈する内側スカート状部，
６ｃは環状移動壁６の外周端側に形成されて上カバーヘッド５ａの外筒状部５ｅの内周面と密接し、定量室Ａへのシール作用を呈する外側スカート状部，
６ｄは環状移動壁６の上面部分に形成されて縦外側コイルスプリング６ａの図示下端側を受ける環凹状部，
６ｅは環凹状部６ｄの外側内周面に形成されて縦外側コイルスプリング６ａのいわば径方向位置を保持する計六個の縦リブ状部，
６ｆは環状移動壁６の下面部分の内外径方向に形成されて、当該環状移動壁の外側（上カバーヘッド５ａの外筒状部５ｅとの間）の定量室空間域への内容物流入用のいわば初期通路域を設定する計四個の溝状部，
６ｇは外側スカート状部６ｃの上側に形成されて、上カバーヘッド５ａの縦リブ状部５ｆの下端面と当接することにより環状移動壁６の最上位置を規定する外側環状上面，
をそれぞれ示している。 Also,
6 is held by the upward annular surface 5h of the lower cover head 5b in the stationary mode of FIG. 1, and is caused by the action of the propellant accompanying the inflow of the contents into the metering chamber A by the contents injection operation of the vertical outer coil spring 6a described later. An annular moving wall that moves upward while resisting elastic force,
The vertical outer coil spring 6a is disposed between the downward annular surface 5c of the upper cover head 5a and the upper surface portion of the annular moving wall 6, and urges the annular moving wall 6 downward in the drawing.
6b is an inner skirt-shaped portion formed on the inner peripheral end side of the annular moving wall 6 and in close contact with the outer peripheral surface of the inner tubular portion 5d of the upper cover head 5a and exhibiting a sealing action on the metering chamber A.
6c is an outer skirt-shaped portion formed on the outer peripheral end side of the annular moving wall 6 and in close contact with the inner peripheral surface of the outer tubular portion 5e of the upper cover head 5a and exhibiting a sealing action on the metering chamber A.
6d is an annular concave portion formed on the upper surface portion of the annular moving wall 6 and receiving the lower end side of the vertical outer coil spring 6a in the drawing.
6e is a total of six vertical rib-shaped portions formed on the outer inner peripheral surface of the annular concave portion 6d to hold the so-called radial position of the vertical outer coil spring 6a.
6f is formed in the inner and outer diameter directions of the lower surface portion of the annular moving wall 6, and is used for inflowing the contents into the quantitative chamber space area on the outside of the annular moving wall (between the outer tubular portion 5e of the upper cover head 5a). So to speak, a total of four groove-shaped parts that set the initial passage area,
6g is formed on the upper side of the outer skirt-shaped portion 6c, and by contacting the lower end surface of the vertical rib-shaped portion 5f of the upper cover head 5a, the outer annular upper surface, which defines the uppermost position of the annular moving wall 6.
Are shown respectively.
　ここで、ハウジング３，ステム４，カバーヘッド５，ヘッド操作部５ｍおよび環状移動壁６は例えばポリプロピレン，ポリエチレン，ポリアセタール，ナイロン，ポリブチレンテレフタレートなどからなるプラスチック製のものである。 Here, the housing 3, the stem 4, the cover head 5, the head operation portion 5 m, and the annular moving wall 6 are made of plastic made of, for example, polypropylene, polyethylene, polyacetal, nylon, polybutylene terephthalate, or the like.
　また、エアゾール容器１，縦内側コイルスプリング４ｈ，縦外側コイルスプリング６ａは例えばプラスチック製，金属製のものである。マウンティングカップ２は例えば金属製のものである。 Further, the aerosol container 1, the vertical inner coil spring 4h, and the vertical outer coil spring 6a are made of, for example, plastic or metal. The mounting cup 2 is made of metal, for example.
　定量室Ａは概略、流入弁Ｂより下流側のステム内部空間域ならびに流出弁Ｃより上流側で内筒状部５ｄの図示下側内部空間域および環状移動壁６の図示下側環状空間域などである。 The metering chamber A is roughly an internal space area of the stem on the downstream side of the inflow valve B, an internal space area on the lower side of the inner tubular portion 5d on the upstream side of the outflow valve C, and an annular space area on the lower side of the annular moving wall 6. Is.
　図示の逆定量噴射機構の主たる特徴は、定量室Ａのいわば構成要素である環状移動壁６を縦外側コイルスプリング６ａで図示下方に、すなわち内容物収容対象の定量室Ａの容積を小さくする方向に弾性的に付勢していることである。 The main feature of the illustrated reverse metering injection mechanism is the direction in which the annular moving wall 6, which is a so-called component of the metering chamber A, is moved downward in the figure by the vertical outer coil spring 6a, that is, the volume of the metering chamber A to be accommodated is reduced. It is elastically urged to.
　この環状移動壁６に対する図示下方への弾性作用により、定量室Ａへの流入噴射剤（液化ガス噴射剤）が気化して生じる泡成分を外部空間域に送り出し、定量室Ａに泡成分が貯留されるのを阻止している。 Due to the downward elastic action on the annular moving wall 6 shown in the drawing, the foam component generated by vaporization of the inflow propellant (liquefied gas propellant) into the metering chamber A is sent out to the external space area, and the foam component is stored in the metering chamber A. It is preventing it from being done.
　また、定量室Ａの収容内容物は、内容物(原液)と溶解する液化ガス噴射剤を用いる場合のみならず、原液に不溶ともいえる圧縮ガス噴射剤を用いる場合にも外部空間域に確実に噴射される。 Further, the contained contents of the quantitative chamber A are surely in the external space area not only when a liquefied gas propellant that dissolves in the contents (stock solution) is used but also when a compressed gas propellant that can be said to be insoluble in the stock solution is used. Be jetted.
　図１の静止モードのとき、
(11)ステム４は、縦内側コイルスプリング４ｈの弾性力により図示下方向に付勢されて、その流入弁Ｂの横孔部４ｃが環状水平面態様の環状ガスケット４ｄで閉じられ、
(12)環状移動壁６は、縦外側コイルスプリング６ａの弾性力により図示下方向に付勢されて、その下面の、溝状部６ｆが形成されていない部分が下カバーヘッド５ｂの上向き環状面５ｈに当接し、
(13)上カバーヘッド５ａおよび下カバーヘッド５ｂは、内筒状部５ｄの内周面およびステム下部分４ｂの外周面が部分的に係合して、このとき流出弁Ｃを構成する外向き環状テーパ面４ｆと環状上縁部分５ｋとは離間し、
(14)定量室Ａは、流入弁Ｂ（横孔部４ｃおよび環状ガスケット４ｄ）が閉じ、通路部５ｎへの流出弁Ｃ（外向き環状テーパ面４ｆおよび環状上縁部分５ｋ）が開いた、
状態に設定されている。 In the stationary mode of FIG.
(11) The stem 4 is urged downward in the drawing by the elastic force of the vertical inner coil spring 4h, and the lateral hole portion 4c of the inflow valve B is closed by the annular gasket 4d in the annular horizontal plane mode.
(12) The annular moving wall 6 is urged downward in the drawing by the elastic force of the vertical outer coil spring 6a, and the portion of the lower surface thereof where the groove-shaped portion 6f is not formed is the upward annular surface of the lower cover head 5b. Contact 5h,
(13) The upper cover head 5a and the lower cover head 5b are partially engaged with the inner peripheral surface of the inner tubular portion 5d and the outer peripheral surface of the stem lower portion 4b, and at this time, the outer peripheral surface constituting the outflow valve C is outwardly oriented. The annular tapered surface 4f and the annular upper edge portion 5k are separated from each other.
(14) In the metering chamber A, the inflow valve B (horizontal hole portion 4c and annular gasket 4d) was closed, and the outflow valve C (outward annular tapered surface 4f and annular upper edge portion 5k) to the passage portion 5n was opened.
It is set to the state.
　すなわち、流入弁Ｂが閉じ、流出弁Ｃが開いた状態でありエアゾール容器１の内容物は定量室Ａへ流入しない。 That is, the inflow valve B is closed and the outflow valve C is open, and the contents of the aerosol container 1 do not flow into the metering chamber A.
　図２は内容物噴射操作の開始直後に流出弁Ｃが閉じ、定量室Ａの内容物流入用空間域が設定された状態を示している。 FIG. 2 shows a state in which the outflow valve C is closed immediately after the start of the content injection operation, and the content inflow space area of the metering chamber A is set.
　なお、内容物噴射操作は、利用者が例えばエアゾール容器１を把持した状態でヘッド操作部５ｍを指で押してこれと一体のカバーヘッド５およびこれと連動するステム４を図示上方に移動させることである。 In the content injection operation, for example, the user pushes the head operation unit 5 m with a finger while holding the aerosol container 1, and moves the cover head 5 integrated with the cover head 5 and the stem 4 interlocking with the cover head 5 upward in the drawing. is there.
　このとき、カバーヘッド５およびヘッド操作部５ｍの一体物はステム４およびエアゾール容器１に対しわずかに上動してその環状上縁部分５ｋが外向き環状テーパ面４ｆにいわば密接し、流出弁Ｃが閉状態に設定される。 At this time, the integrated body of the cover head 5 and the head operating portion 5 m moves slightly upward with respect to the stem 4 and the aerosol container 1, and the annular upper edge portion 5k thereof is in close contact with the outward annular tapered surface 4f, so to speak, and the outflow valve C. Is set to the closed state.
　ステム４は縦内側コイルスプリング４ｈで図示下方に付勢され、略静止モードの位置のままである。 The stem 4 is urged downward in the figure by the vertical inner coil spring 4h, and remains in the substantially stationary mode position.
　図３は、図２に続く図示上方への噴射操作にともないステム４がエアゾール容器１およびハウジング３に対して上動することにより流入弁Ｂが開いた状態、すなわちエアゾール容器１の内容物が「流出弁閉」の定量室Ａへ流入しそこに貯留される状態を示している。 FIG. 3 shows a state in which the inflow valve B is opened by the stem 4 moving upward with respect to the aerosol container 1 and the housing 3 in accordance with the upward injection operation shown in FIG. 2, that is, the contents of the aerosol container 1 are ". It shows a state in which the outflow valve is closed and flows into the metering chamber A and is stored there.
　この定量室内容物が噴射操作解除時の外部空間域への噴射対象となる。
また、定量室内部にはそこへ流入した液化ガス噴射剤が流入原液中で気化した状態の泡成分が生じている。 The contents of the metering chamber are the objects to be injected into the external space area when the injection operation is released.
In addition, a foam component in a state in which the liquefied gas propellant flowing into the metering chamber is vaporized in the inflow stock solution is generated.
　図３の内容物流入モードでは、カバーヘッド５の環状上縁部分５ｋがステム４の外向き環状テーパ面４ｆに当接した状態で、ステム４，カバーヘッド５およびヘッド操作部５ｍの全体が縦内側コイルスプリング４ｈの弾性力に抗しながら上動している。 In the content inflow mode of FIG. 3, the entire stem 4, cover head 5 and head operating portion 5 m are vertically oriented with the annular upper edge portion 5k of the cover head 5 in contact with the outward annular tapered surface 4f of the stem 4. It is moving upward while resisting the elastic force of the inner coil spring 4h.
　このステム４の図示上動により環状ガスケット４ｄの内側部分が図示上方に変位して定量室Ａへの流入弁Ｂがそれまでの閉状態から開状態へシフトする。 Due to the upward movement of the stem 4, the inner portion of the annular gasket 4d is displaced upward in the drawing, and the inflow valve B into the metering chamber A shifts from the closed state to the open state.
　この流入弁Ｂの開状態シフトにともないエアゾール容器１の内容物が、
図示矢印の「ハウジング３の開口部３ａ－ハウジング３の内周面とステム上部分４ａの外周面との間の環状で上下方向の隙間空間域－横孔部４ｃ－ステム４の上下方向の内部空間域－ステム４の縦孔部４ｅ」経路などで定量室Ａに流入する。 As the inflow valve B shifts to the open state, the contents of the aerosol container 1 become
"Opening 3a of the housing 3-Inner peripheral surface of the housing 3 and outer peripheral surface of the stem upper portion 4a in the annular and vertical gap space area-Horizontal hole portion 4c-Inside the stem 4 in the vertical direction" It flows into the metering chamber A through the space area-vertical hole portion 4e of the stem 4 or the like.
　なお、上カバーヘッド５ａの内筒状部５ｄの下端部分はそれが対向する上向き環状面５ｈから離間しているので、縦孔部４ｅを通った内容物は環状移動壁６の図示下側空間域にも流入する。 Since the lower end portion of the inner tubular portion 5d of the upper cover head 5a is separated from the upward annular surface 5h facing the upper cover head 5a, the content passing through the vertical hole portion 4e is the lower space shown in the annular moving wall 6. It also flows into the area.
　環状移動壁６の図示下側空間域などの定量室Ａへの内容物流入により定量室内圧が上昇して、環状移動壁６は縦外側コイルスプリング６ａの下方への弾性力に抗しながら図示上方へ駆動される。 Illustration of the annular moving wall 6 The pressure in the quantitative chamber rises due to the inflow of contents into the quantitative chamber A such as the lower space area, and the annular moving wall 6 is shown while resisting the downward elastic force of the vertical outer coil spring 6a. Driven upwards.
　図示上方へ移動する環状移動壁６は、その外側環状上面６ｇが外筒状部５ｅの縦リブ状部５ｆの下端面部分と当接した状態で停止する。 The annular moving wall 6 that moves upward in the drawing stops in a state where its outer annular upper surface 6g is in contact with the lower end surface portion of the vertical rib-shaped portion 5f of the outer tubular portion 5e.
　図４は、図３に続く噴射操作解除直後のステム４が縦内側コイルスプリング４ｈの弾性作用で図示下方の初期位置（図１の静止モード位置）に復帰した流入弁「閉」状態を示している。 FIG. 4 shows an inflow valve “closed” state in which the stem 4 immediately after the injection operation is released following FIG. 3 returns to the initial position (stationary mode position in FIG. 1) below the drawing due to the elastic action of the vertical inner coil spring 4h. There is.
　このステム下死点モードでは、カバーヘッド５は、エアゾール容器１およびハウジング３に対して図示下方向へ復帰するステム４と連動し、流出弁Ｃの外向き環状テーパ面４ｆおよび環状上縁部分５ｋは当接している。 In this stem bottom dead center mode, the cover head 5 is interlocked with the stem 4 that returns downward with respect to the aerosol container 1 and the housing 3, and the outward annular tapered surface 4f and the annular upper edge portion 5k of the outflow valve C. Are in contact.
　すなわちこの図４のいわば瞬間では流入弁Ｂおよび流出弁Ｃがともに「閉」状態となっている。定量室Ａにはエアゾール容器１の内容物が図３の経路により収容済みである。このとき定量室Ａには図３の泡成分も収容されている。 That is, at the moment in FIG. 4, both the inflow valve B and the outflow valve C are in the "closed" state. The contents of the aerosol container 1 are already stored in the metering chamber A by the route shown in FIG. At this time, the foam component of FIG. 3 is also housed in the quantitative chamber A.
　そして液化ガス噴射剤や原液に可溶な圧縮ガス噴射剤を用いている場合には、収容されたときの圧力が保持され、定量室Ａの内圧は高いまま維持されている。 When a liquefied gas propellant or a compressed gas propellant soluble in the undiluted solution is used, the pressure at the time of being contained is maintained, and the internal pressure of the metering chamber A is maintained high.
　また原液に溶解しない圧縮ガス噴射剤を用いている場合にも、定量室Ａを構成する環状移動壁６が縦外側コイルスプリング６ａの弾性作用で図示下方に駆動され、泡成分を含む内容物を圧縮するので定量室Ａの内圧は高くなっている。 Further, even when a compressed gas propellant that does not dissolve in the undiluted solution is used, the annular moving wall 6 constituting the metering chamber A is driven downward in the drawing by the elastic action of the vertical outer coil spring 6a, and the contents containing the foam component are driven. Since it is compressed, the internal pressure of the metering chamber A is high.
　この内圧により、相対移動が可能な態様で設定されているステム４およびカバーヘッド５が流出弁Ｃを開状態にシフトさせるように移動する。例えば図示のようにステム４に対してカバーヘッド５が図示下方に移動する。このとき、ステム４は図４，図５で示すようにハウジング３に対して初期位置（静止モード位置）のままである。 Due to this internal pressure, the stem 4 and the cover head 5, which are set so as to be relatively movable, move so as to shift the outflow valve C to the open state. For example, as shown in the figure, the cover head 5 moves downward in the figure with respect to the stem 4. At this time, the stem 4 remains in the initial position (stationary mode position) with respect to the housing 3 as shown in FIGS. 4 and 5.
　このカバーヘッド５の移動にともない、定量室Ａの泡成分を含む内容物が、開状態にシフトした流出弁Ｃを介した図５の黒矢印経路で、ヘッド操作部５ｍの通路部５ｎから外部空間域に噴射される。 With the movement of the cover head 5, the content containing the foam component of the metering chamber A is external from the passage portion 5n of the head operation portion 5 m in the black arrow path of FIG. 5 via the outflow valve C shifted to the open state. It is sprayed into the space area.
　そして、噴射にともなって定量室Ａの内圧が低下しても、縦外側コイルスプリング６ａに駆動される環状移動壁６が移動することにより、泡成分を含む内容物を可能な限り定量室Ａから押し出し、泡成分の貯留を阻止する。 Then, even if the internal pressure of the metering chamber A decreases with the injection, the annular moving wall 6 driven by the vertical outer coil spring 6a moves, so that the contents containing the foam component can be removed from the metering chamber A as much as possible. Extrude and prevent the accumulation of foam components.
　なお、上述したように内筒状部５ｄの下端部分は上向き環状面５ｈから離間しているので、略下死点の環状移動壁６の図示下側空間域の収容内容物もこの離間部分を介して流出弁Ｃの方に流れる。 As described above, since the lower end portion of the inner tubular portion 5d is separated from the upward annular surface 5h, the contained contents in the illustrated lower space area of the annular moving wall 6 at the substantially bottom dead center also have this separated portion. It flows toward the outflow valve C via.
　図示の逆定量噴射機構は倒立使用を対象としているが、本発明がこれに限定されるものではなくカバーヘッド５を上側に設定した正立使用の場合にも適用できるのは勿論である。この場合、上下の位置関係が本明細書の記載とは逆になる。 Although the reverse metering injection mechanism shown in the figure is intended for inverted use, the present invention is not limited to this, and of course, it can be applied to the case of upright use in which the cover head 5 is set on the upper side. In this case, the vertical positional relationship is opposite to that described in the present specification.
　本発明が適用されるエアゾール式製品としては、洗浄剤，清掃剤，冷却剤，筋肉消炎剤，育毛剤，染毛剤，ヘアスタイリング剤，ヘアトリートメント剤，日焼け止め，化粧水，クレンジング剤，制汗剤，化粧品，シェービングフォーム，食品，液滴状のもの（ビタミンなど），医薬品，医薬部外品，園芸用剤，殺虫剤，害虫忌避剤，動物忌避剤，消臭剤，洗濯のり，消火器，塗料，接着剤，潤滑剤，ウレタンフォームなどの各種用途のものがある。 Aerosol-type products to which the present invention is applied include cleaning agents, cleaning agents, cooling agents, muscle anti-inflammatory agents, hair growth agents, hair dyes, hair styling agents, hair treatment agents, sunscreens, lotions, cleansing agents, and controls. Sweat, cosmetics, shaving foam, food, droplets (vitamins, etc.), pharmaceuticals, quasi-drugs, gardening agents, insecticides, pest repellents, animal repellents, deodorants, wash paste, fire extinguishing There are various uses such as vessels, paints, adhesives, lubricants, and urethane foams.
　エアゾール容器に収容される内容物としては、液状，クリーム状，ゲル状など種々の形態のものを用いる。内容物に配合される成分は例えば、粉状物，油成分，アルコール類，界面活性剤，高分子化合物，各用途に応じた有効成分，水などである。 As the contents contained in the aerosol container, various forms such as liquid, cream, and gel are used. The components to be blended in the contents are, for example, powders, oil components, alcohols, surfactants, polymer compounds, active ingredients according to each application, water and the like.
　粉状物としては、金属塩類粉末，無機物粉末や樹脂粉末などを用いる。例えば、タルク，カオリン，アルミニウムヒドロキシクロライド（アルミ塩），アルギン酸カルシウム，金粉，銀粉，雲母，炭酸塩，塩化マグネシウム，シリカ，酸化亜鉛，酸化チタン，ゼオライト，ナイロンパウダー，硫酸バリウム，セルロース，これらの混合物などを用いる。 As the powder, use metal salt powder, inorganic powder, resin powder, or the like. For example, talc, kaolin, aluminum hydroxychloride (aluminum salt), calcium alginate, gold powder, silver powder, mica, carbonate, magnesium chloride, silica, zinc oxide, titanium oxide, zeolite, nylon powder, barium sulfate, cellulose, and mixtures thereof. Etc. are used.
　油成分としては、ジメチルポリシロキサンなどのシリコーン油，ミリスチン酸イソプロピルなどのエステル油，パーム油，ユーカリ油，ツバキ油，オリーブ油，ホホバ油などの油脂，流動パラフィンなどの炭化水素油，ミリスチン酸，パルミチン酸，ステアリン酸，リノール酸，リノレン酸などの脂肪酸などを用いる。 The oil components include silicone oil such as dimethylpolysiloxane, ester oil such as isopropyl myristate, palm oil, eucalyptus oil, camellia oil, olive oil, jojoba oil and other fats and oils, liquid paraffin and other hydrocarbon oils, myristic acid and palmitin. Use fatty acids such as acid, stearic acid, linoleic acid, and linolenic acid.
　アルコール類としては、エタノールなどの１価の低級アルコール，ラウリルアルコールやセタノールなどの１価の高級アルコール，エチレングリコール，１，３－ブチレングリコールやグリセリンなどの多価アルコールなどを用いる。 As alcohols, monohydric lower alcohols such as ethanol, monohydric higher alcohols such as lauryl alcohol and cetanol, ethylene glycol, and polyhydric alcohols such as 1,3-butylene glycol and glycerin are used.
　界面活性剤としては、ラウリル硫酸ナトリウムなどのアニオン性界面活性剤，ポリオキシエチレンアルキルエーテルやポリグリセリン脂肪酸エステルなどの非イオン性界面活性剤，ラウリルジメチルアミノ酢酸ベタインなどの両性界面活性剤，塩化アルキルトリメチルアンモニウムなどのカチオン性界面活性剤などを用いる。 Surfactants include anionic surfactants such as sodium lauryl sulfate, nonionic surfactants such as polyoxyethylene alkyl ethers and polyglycerin fatty acid esters, amphoteric surfactants such as betaine lauryl dimethylaminoacetate, and alkyl chlorides. A cationic surfactant such as trimethylammonium is used.
　高分子化合物としては、ヒドロキシエチルセルロース，メチルセルロース，ゼラチン，デンプン，カゼイン，キサンタンガム，カルボキシビニルポリマーなどを用いる。 As the polymer compound, hydroxyethyl cellulose, methyl cellulose, gelatin, starch, casein, xanthan gum, carboxyvinyl polymer, etc. are used.
　各用途に応じた有効成分としては、パラフェニレンジアミン，アミノフェノールなどの染料，過酸化水素水などの酸化剤，アクリル系樹脂やワックスなどのセット剤，パラメトキシケイ皮酸２－エチルヘキシルなどの紫外線吸収剤，レチノールやｄｌ－α－トコフェロールなどのビタミン，ヒアルロン酸などの保湿剤，サリチル酸メチル，インドメタシンなどの消炎鎮痛剤，安息香酸ナトリウム，クレゾールなどの除菌剤，ピレスロイド，ジエチルトルアミドなどの害虫忌避剤，パラフェノールスルホン酸亜鉛などの制汗剤，カンフル，メントールなどの清涼剤，エフェドリン，アドレナリンなどの抗喘息薬，スクラロース，アスパルテームなどの甘味料，エポキシ樹脂，ウレタンなどの接着剤や塗料，パラフェニレンジアミン，アミノフェノールなどの染料，過酸化水素水などの酸化剤，リン酸二水素アンモニウム，炭酸水素ナトリウム・カリウムなどの消火剤などを用いる。 Active ingredients according to each application include dyes such as paraphenylenediamine and aminophenol, oxidizing agents such as hydrogen peroxide solution, setting agents such as acrylic resin and wax, and ultraviolet rays such as 2-ethylhexyl paramethoxysilicate. Absorbents, vitamins such as retinol and dl-α-tocopherol, moisturizers such as hyaluronic acid, anti-inflammatory analgesics such as methyl salicylate and indomethacin, disinfectants such as sodium benzoate and cresol, pests such as pyrethroids and diethyl tolamide Repellents, antiperspirants such as zinc paraphenol sulfonate, refreshing agents such as camphor and menthol, anti-asthmatic agents such as ephedrine and adrenaline, sweeteners such as scullose and aspartame, adhesives and paints such as epoxy resin and urethane, Use dyes such as paraphenylenediamine and aminophenol, oxidizing agents such as hydrogen peroxide solution, and fire extinguishing agents such as ammonium dihydrogen phosphate and sodium hydrogen carbonate / potassium.
　さらに、上記内容物以外の、懸濁剤，乳化剤，酸化防止剤，金属イオン封鎖剤なども用いることができる。 Furthermore, suspension agents, emulsifiers, antioxidants, sequestrants, etc. other than the above contents can also be used.
　噴射用ガスとしては、液化石油ガス，ジメチルエーテル，ハイドロフルオロオレフィンなどの液化ガスや、炭酸ガス，窒素ガス，圧縮空気，亜酸化窒素，酸素ガス，希ガス，これらの混合ガスなどの圧縮ガスを用いる。 As the injection gas, liquefied petroleum gas, dimethyl ether, hydrofluoroolefin or other liquefied gas, or compressed gas such as carbon dioxide gas, nitrogen gas, compressed air, nitrous oxide, oxygen gas, rare gas, or a mixed gas thereof is used. ..
Ａ：定量室
Ｂ：流入弁（横孔部４ｃ＋環状ガスケット４ｄ）
Ｃ：流出弁（外向き環状テーパ面４ｆ＋環状上縁部分５ｋ）
１：エアゾール容器
２：マウンティングカップ
３：ハウジング
３ａ：開口部 A: Metering chamber B: Inflow valve (horizontal hole 4c + annular gasket 4d)
C: Outflow valve (outward annular tapered surface 4f + annular upper edge portion 5k)
1: Aerosol container 2: Mounting cup 3: Housing 3a: Opening
４：ステム
４ａ：ステム上部分
４ｂ：ステム下部分
４ｃ：横孔部
４ｄ：環状ガスケット
４ｅ：縦孔部
４ｆ：外向き環状テーパ面
４ｇ：上向き環状段部
４ｈ：縦内側コイルスプリング 4: Stem 4a: Stem upper part 4b: Stem lower part 4c: Horizontal hole part 4d: Circular gasket 4e: Vertical hole part 4f: Outward annular tapered surface 4g: Upward annular step part 4h: Vertical inner coil spring
５：カバーヘッド
５ａ：上カバーヘッド
５ｂ：下カバーヘッド
５ｃ：下向き環状面
５ｄ：内筒状部
５ｅ：外筒状部
５ｆ：縦リブ状部（図３参照）
５ｇ：外周回凹状部
５ｈ：上向き環状面
５ｊ：中央縦筒状部
５ｋ：環状上縁部分
５ｍ：ヘッド操作部
５ｎ：略Ｌ字状の通路部 5: Cover head 5a: Upper cover head 5b: Lower cover head 5c: Downward annular surface 5d: Inner tubular portion 5e: Outer tubular portion 5f: Vertical rib-shaped portion (see FIG. 3)
5g: Outer peripheral concave portion 5h: Upward annular surface 5j: Central vertical tubular portion 5k: Circular upper edge portion 5m: Head operation portion 5n: Approximately L-shaped passage portion
６：環状移動壁
６ａ：縦外側コイルスプリング
６ｂ：内側スカート状部
６ｃ：外側スカート状部
６ｄ：環凹状部
６ｅ：縦リブ状部
６ｆ：溝状部 6: Circular moving wall 6a: Vertical outer coil spring 6b: Inner skirt-shaped portion 6c: Outer skirt-shaped portion 6d: Ring concave portion 6e: Vertical rib-shaped portion 6f: Groove-shaped portion

Claims (4)

  1. 　エアゾール容器に対する噴射操作に基づき、内容物噴射用の流出弁が閉じ、この流出弁閉状態で内容物通路態様のステムからなる流入弁が開くことによりこの流入弁と前記流出弁との間の定量室に容器本体側から内容物が流入し、かつ、前記噴射操作の解除段階で前記流入弁が閉じて前記流出弁が開くことにより前記定量室への流入済み内容物が外部へ噴射されるエアゾール容器の逆定量噴射機構において、
    　前記ステムを前記流入弁の閉状態に付勢する第一の弾性部材と、
    　前記定量室の構成要素であって定量室容積を変化させるための移動壁と、
    　前記移動壁を前記定量室容積の減少方向に付勢する第二の弾性部材と、を備え、
    　前記移動壁は、
    前記噴射操作にともない、開状態の前記流入弁から前記定量室へ流入する内容物の圧力作用で前記第二の弾性部材の弾性力に抗しながら、前記定量室容積の増加方向に移動し、
    前記噴射操作の解除にともない、前記第二の弾性部材の弾性作用で前記定量室容積の減少方向に移動して前記流出弁をそれまでの閉状態から開状態に変化させる、
    　ことを特徴とするエアゾール容器の逆定量噴射機構。     Based on the injection operation on the aerosol container, the outflow valve for injecting the contents is closed, and the inflow valve composed of the stem of the contents passage mode is opened in the closed state of the outflow valve, so that the quantification between the inflow valve and the outflow valve is performed. An aerosol in which the contents flow into the chamber from the container body side, and the inflow valve closes and the outflow valve opens at the release stage of the injection operation, so that the contents that have already flowed into the metering chamber are injected to the outside. In the reverse quantitative injection mechanism of the container
    A first elastic member that urges the stem to the closed state of the inflow valve,
    A moving wall that is a component of the metering chamber and for changing the volume of the metering chamber,
    A second elastic member that urges the moving wall in the decreasing direction of the volume of the metering chamber is provided.
    The moving wall
    Along with the injection operation, the pressure action of the contents flowing into the metering chamber from the inflow valve in the open state moves in the direction of increasing the volume of the metering chamber while resisting the elastic force of the second elastic member.
    With the release of the injection operation, the elastic action of the second elastic member moves the metering chamber volume in a decreasing direction to change the outflow valve from the closed state to the open state.
    A reverse quantitative injection mechanism for an aerosol container.
  2. 　前記内容物は、
    原液および液化ガス噴射剤であり、
    　前記移動壁は、
    前記定量室容積の減少方向に移動して、前記定量室の前記液化ガス噴射剤が原液中で気化することにより生じる泡成分を、開状態の前記流出弁から流出させる、
    　ことを特徴とする請求項１記載のエアゾール容器の逆定量噴射機構。     The contents are
    Undiluted solution and liquefied gas propellant,
    The moving wall
    The foam component generated by the vaporization of the liquefied gas propellant in the quantification chamber in the stock solution by moving in the direction of decreasing the volume of the quantification chamber is discharged from the outflow valve in the open state.
    The reverse quantitative injection mechanism for an aerosol container according to claim 1.
  3. 　前記流出弁は、
    前記ステムとその外回りのカバーヘッドとの環状の各対向部分で設定され、
    　前記移動壁は、
    前記カバーヘッドを構成する内外の各筒状部の間の環状空間域に前記各筒状部との密接状態で配設された、
    　ことを特徴とする請求項１または２記載のエアゾール容器の逆定量噴射機構。     The outflow valve
    It is set at each annular facing portion of the stem and its outer cover head.
    The moving wall
    An annular space area between the inner and outer tubular portions constituting the cover head is arranged in close contact with the tubular portions.
    The reverse quantitative injection mechanism for an aerosol container according to claim 1 or 2.
  4. 　請求項１乃至３のいずれかに記載のエアゾール容器の逆定量噴射機構を備え、かつ、噴射剤および原液の内容物を収容した、
    　ことを特徴とするエアゾール式製品。     The aerosol container according to any one of claims 1 to 3 is provided with a reverse quantitative injection mechanism, and contains the propellant and the contents of the stock solution.
    An aerosol-type product characterized by this.
PCT/JP2020/021252 2019-08-13 2020-05-28 Reverse fixed quantity jetting mechanism for aerosol container and aerosol-type product equipped with said reverse fixed quantity jetting mechanism WO2021029121A1 (en)

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