JP4986145B2 - A unit for adding a metering chamber, a metering valve mechanism to which the unit for adding a metering chamber is attached, and an aerosol type product equipped with this metering valve mechanism - Google Patents

Description

  The present invention relates to a unit for adding a metering chamber used for aerosol products, a metering valve mechanism to which the unit is attached, and the like.

  In particular, an additional unit for adding a metering chamber is provided outside the housing of the aerosol container, and as a metering chamber that regulates the amount of contents released to the container outer space for each injection operation, it is located outside the inner space area of the housing. When the additional internal space area of the additional unit in communication is used, the volume of the additional internal space area can be selected.

  In addition, when the operation button is moved to the operation mode position, the metering valve is closed to the inlet side of the metering chamber, that is, the container internal space area leading to the metering chamber is blocked from the operation button injection hole. The degassing path in the mechanism can be set with a simple operation.

  Conventionally, the metering valve mechanism of aerosol type products has set a space area for the metering chamber inside the housing of the aerosol container.

And, for each operation, the entire contents accommodated in the quantitative chamber consisting of a part of the internal space area of this housing (= the area excluding the occupied space such as the stem from the entire internal space area) Some of them have been devised so that they can be efficiently discharged into the external space of the container without remaining on the bottom of the quantitative chamber (see Patent Document 1).
JP 2002-263531 A

  As described above, in the method using only the interior space of the housing as the fixed amount chamber for releasing the contents of the aerosol type product, the amount of the contents released in one operation is inevitably limited by the internal capacity of the housing. Will be.

  Also, when setting the shape and size of the housing, consideration must be given to the mounting cap that is a holding member of the housing and the stem that moves inside the housing, and the size of the quantitative chamber is given priority. It is also difficult to design the housing.

  For this reason, the conventional metering valve mechanism with a metering chamber consisting only of the internal space of the housing secures a metering chamber capacity according to the difference in the use of aerosol products and the type of container contents (contents to be released). In that respect, there was room for improvement.

  Therefore, in the present invention, an additional unit for forming a quantitative chamber is attached to the outside of the housing of the aerosol container, and the internal space area of this additional unit is added to the quantitative chamber space area inside the housing, and the additional quantitative chamber in the additional unit As the part is selected by the partition member, it actively secures the degree of freedom in setting the volume of the metering chamber of the metering valve mechanism, thereby realizing the dispensing operation of the metered contents that match various aerosol products , The purpose is to further ensure.

  Inevitably, when the operation button is moved to the operating mode position, the inlet side of the metering chamber is closed, and the internal space of the container is blocked from the injection hole of the operation button. The purpose is to ensure that the operation can be performed with simple operations.

The present invention solves the above problems as follows.
(1) A housing-side element (for example, an after-mentioned upper cover body 6) to be attached to an aerosol container housing (for example, an after-mentioned housing 4); 7) and addition of a quantitative chamber comprising a partition member (for example, partition tubes 9 and 10 described later) for selecting the volume of the additional quantitative chamber set between the housing side element and the quantitative chamber input side element As a unit for
The housing side element is
An opening for communicating with the internal space of the housing and enabling movement of a stem (for example, a stem 2 and a stem extension member 3 to be described later) in accordance with a quantitative injection operation of the contents; A first engaging portion (for example, a concave portion 6b for engagement described later), a second engagement portion (for example, a convex portion for engagement 6d described later) with respect to the metering chamber input side element, and the partition member A first receiving portion (for example, a downward annular concave portion 6f described later),
The quantitative chamber input side element is:
A content inflow portion (for example, a sealed portion 7b described later) set in a closed state by the movement of the stem, an engaged portion (for example, a recessed portion 7d for engagement described later) for the second engaging portion, A second receiving portion for the partition member (for example, an upward annular concave portion 7g described later),
The partition member is
A first attached portion (for example, a first annular narrow portion 9b and a third annular narrow portion 10c described later) corresponding to the first receiving portion, and a second corresponding to the second receiving portion. Attached portions (for example, a second annular narrow portion 9d and a fourth annular narrow portion 10f described later),
Use things.
(2) In (1) above,
The partition member is a cylindrical portion;
The first receiving part and the second receiving part are each formed in a plurality of concentric shapes,
Use things.
(3) In (2) above,
The cylindrical part is
One end portion (for example, a third annular narrow portion 10c described later) is attached to the first receiving portion, and the other end portion (for example, a fourth annular narrow portion 10f described later) is the first portion. Is attached to the second engaging portion having a diameter different from that of the receiving portion.
Use things.
(4) A metering valve mechanism in which the unit for adding a metering chamber described in the above (1) to (3) is attached to the housing is used.
(5) In (4) above,
The stem is
An upper portion corresponding to an opening of a mounting cap (for example, a mounting cap 11 described later) is provided in a manner that can be removed from the main body portion (for example, an inner cylindrical portion 2d described later) having an injection passage and the main body portion. An outer portion (for example, an outer cylindrical portion 2e described later),
The body portion is
When the outer portion is removed, the gas is placed between the stem gasket (for example, stem gasket 12 to be described later) by being pushed laterally in the stationary mode position and displaced within the opening of the mounting cap. Forming an outflow channel,
A metering valve mechanism is used.

  The subject of the present invention is a unit for adding a metering chamber and a metering valve mechanism having the above-described configuration and an aerosol type product equipped with this metering valve mechanism.

  In the present invention, an additional unit for adding a metering chamber is attached to the outside of the housing of the aerosol container as described above, and the additional metering chamber part in the additional unit can be selectively set with a partition member. Thus, the degree of freedom in setting the volume of the entire metering chamber of the metering valve mechanism is ensured.

  For this reason, it is possible to realize and ensure the operation of discharging contents in an amount corresponding to various types of aerosol products.

  In addition, because it is configured to be externally attached to the housing, existing components can be used for the housing, the stem in it, and the mounting cap to which it is attached, creating a metered valve mechanism. Therefore, it is possible to effectively use each component and reduce costs.

  Furthermore, the upper part of the stem is composed of an inner cylindrical part and its outer cylindrical part, and the stem is moved laterally in the opening of the mounting cap with the outer cylindrical part removed. Since the degassing path from the outside of the stem to the external space is set from the outside of the stem, the inlet side of the metering chamber is closed when the operation button is moved to the operation mode position, and the container inner space area and the injection hole are The degassing in the metering valve mechanism where the gap is interrupted can be reliably performed with a simple operation.

  The best mode for carrying out the present invention will be described with reference to FIGS.

here,
Fig. 1 shows the quantitative valve mechanism of an aerosol type product that uses a propellant of liquefied gas. (A) shows the quantitative injection mode, (b) shows the stationary mode
FIG. 2 is a partition member for setting an additional quantitative chamber in the additional unit of FIG. 1, (a) shows a single cylindrical part type, (b) shows a double cylindrical part type,
FIG. 3 shows a degassing mode in the metering valve mechanism of FIG.

  It should be noted that the constituent elements (for example, the passage portion 1a) with the following alphabetical reference numbers are in principle part of the constituent elements (for example, the operation buttons 1) of the numerical portions with the reference numbers.

1-3,
1 is a type of operation button that moves up and down based on the pressing operation of the user,
1a is a passage portion for contents and propellant,
1b is an injection hole following the passage portion,
2 is a stem that engages with the operation button 1 and interlocks vertically.
2a is the internal passage area of the contents and propellant,
2b is a hole that communicates the internal passage area and an internal space area for forming a fixed-quantity chamber of the housing 4 described later,
2c is an annular step portion (ceiling surface portion) that is formed on the outer peripheral surface below the hole portion and receives a coil spring 5 described later.
2d is an inner cylindrical part above the hole 2b,
2e is an outer cylindrical portion that is detachably engaged with the outer peripheral surface portion of the inner cylindrical portion and is strongly fitted to the operation button 1.
3 is a stick-like stem extension member engaged (fitted) with the lower end surface portion of the stem 2;
3a is a sealing action surface (lower end side outer peripheral surface) having a blocking function for the content distribution inlet 8 described later,
3b is a lower annular step formed on the upper outer peripheral surface of the sealing surface,
4 is a cylindrical housing that accommodates the stem 2 in a vertically movable manner,
4a is a large-diameter upper cylindrical portion,
4b is a lower cylindrical portion having a small diameter,
4c is an annular step on the inner peripheral surface side which can be said to be a boundary between the upper cylindrical portion and the lower cylindrical portion;
4d is a convex portion for engagement formed continuously or intermittently in the circumferential direction of the outer peripheral surface of the lower cylindrical portion,
5 is a coil spring disposed between the annular step 2c of the stem 2 and the annular step 4c of the housing 4 to urge the stem upward.
6 is an upper cover body that fits into the housing 4 and constitutes an additional unit (unit for adding a fixed quantity chamber),
6a is a central upper cylindrical part,
6b is an engaging concave portion (a convex portion of the housing 4) formed continuously or intermittently in the circumferential direction of the inner peripheral surface of the annular upright portion outside the central upper cylindrical portion (upper portion). 4d),
6c is an annular hanging portion formed outside the central upper cylindrical portion,
6d is a convex portion for engagement formed continuously or intermittently in the circumferential direction of the lower outer peripheral surface of the annular hanging portion,
6e is a plurality of downward annular convex portions formed concentrically around the central upper cylindrical portion on the ceiling surface portion of the upper cover body,
6f is a plurality of downward annular concave portions generated between the adjacent downward annular convex portions,
7 is a lower cover body that is fitted to the upper cover body 6 and constitutes an additional unit (unit for adding a quantitative chamber).
7a is a central lower cylindrical part,
7b is an annular sealed portion formed on the inner peripheral surface of the central lower cylindrical portion,
7c is a ring-sheath-shaped part formed outside the central lower cylindrical part,
7d is a concave portion for engagement (corresponding to the convex portion 6d of the upper cover body 6) formed continuously or intermittently in the circumferential direction of the outer peripheral surface of the annular sheath portion,
7e is an annular step formed on the inner side of the upper surface of the central lower cylindrical portion,
7f is a plurality of upward ring convex portions formed concentrically with the same diameter as each of the downward ring convex portions 6e around the central lower cylindrical portion at the bottom surface portion of the lower cover body,
7g is a plurality of upward ring concave portions generated between the adjacent upward ring convex portions,
8 is a content distribution inlet (annular space region) formed between the lower end side outer peripheral surface of the stem extension member 3 and the inner peripheral surface of the lower cover body 7 (sealing portion 7b) in the stationary mode;
9 is a single cylindrical part-type partition tube that is engaged with one downward annular concave part 6f and an upward annular concave part 7g directly below it to specify (select) the space area of the additional quantitative chamber;
9a is a first annular step formed on the inner peripheral surface on one end side of the partition tube,
9b corresponds to the annular stepped portion, a first annular narrow portion (for engagement with the downward annular concave portion 6f or the upward annular concave portion 7g),
9c is a second annular step formed on the inner peripheral surface of the other end side of the partition tube,
9d corresponds to the annular step portion, a second annular narrow portion for engagement (for engagement with the upward annular concave portion 7g or the downward annular concave portion 6f),
10 is used to identify (select) the space area of the additional quantitative chamber by engaging with one downward annular recess 6f and one upward annular recess 7g that is radially offset from this. Double cylindrical section type divider,
10a is a small diameter cylindrical part,
10b is a third annular step portion formed on the inner peripheral surface of the end portion side of the small-diameter cylindrical portion,
10c is a third annular narrow portion for engagement (with the downward annular recess 6f or the upward annular recess 7g) corresponding to the annular step,
10d is a large diameter cylindrical part,
10e is a fourth annular step portion formed on the inner peripheral surface of the end portion side of the large-diameter cylindrical portion,
10f corresponds to the annular stepped portion, a fourth annular narrow portion for engagement (for engagement with the upward annular concave portion 7g or the downward annular concave portion 6f),
11 is a mounting cap attached to the open end side of a known aerosol container body (not shown);
12 is a stem gasket which is provided between the upper opening of the housing 4 and the opening side ceiling surface of the mounting cap 11 and exhibits a sealing action for the internal space of the housing;
13 is a tube for inflow of contents attached to the central lower cylindrical portion 7a of the lower cover body 7,
14 is inserted into a clearance (gap) between the inner cylindrical part 2d after the outer cylindrical part 2e of the stem 2 is removed and the mounting cap 11 (opening part), and the inner cylindrical part is laid sideways to gas. A rod-like or cylindrical jig to hold the punching mode,
A is a schematic flow direction of the contents from the container body to the quantitative chamber,
B is a schematic flow direction of the contents from the quantification chamber to the space outside the container,
C shows the approximate flow direction of the residual gas in the degassing mode.

  Here, the operation button 1, the stem 2, the stem extension member 3, the housing 4, the upper cover body 6, the lower cover body 7, the single tubular portion type partition tube 9, and the double tubular portion type partition tube 10. The tube 13 and the jig 14 are made of plastic made of polypropylene, polyethylene, polyacetal, nylon, polybutylene terephthalate, or the like.

  The mounting cap 11 is made of metal, and the stem gasket 12 is made of plastic or rubber.

  The basic feature of the illustrated metering valve mechanism (addition unit for adding a metering chamber) is that the inside of the unit for adding a metering chamber attached to the outside of the housing 4 that holds the stem 2 and forms the space region for the metering chamber is That is, the partition cylinders 9 and 10 (see FIG. 2) are selectively divided.

  As a result, the capacity of the metering chamber in the additional unit is appropriately set (selected) according to differences in the application of the aerosol product and the type of container contents (contents to be released) at the assembly stage of the metering valve mechanism. )

The partition tube 9 in FIGS.
(11) The first annular narrow portion 9b and the second annular narrow portion 9d are respectively an upward ring concave portion 6f of the upper cover body 6 and an upward direction of the lower cover body 7 having the same diameter as that of the lower cover body 7 Engage with the annular concave portion 7g,
(12) The first annular step portion 9a is in contact with the lower end surface portion of the downward ring convex portion 6e of the upper cover body 6 having the same diameter and located directly below,
(13) A space between the inner peripheral surface of the partition tube and the central upper cylindrical portion 6a of the upper cover body 6 is set as an additional quantitative chamber.

  In the case of the partition tube 10 of FIG. 2B, the position of the downward annular recess 6f of the upper cover body 6 with which the third annular narrow portion 10c is engaged and the fourth annular narrow portion 10f are engaged. The position of the upward ring-shaped concave portion 7g of the lower cover body 7 is not directly below or directly above the partition tube 9.

  That is, the upper cover body engaging position of the third annular narrow portion 10c and the lower cover body engaging position of the fourth annular narrow portion 10f are shifted in the radial direction of these cover bodies.

  By this deviation, the capacity of the additional fixed quantity chamber can be set to a size that cannot be realized by the single cylindrical portion type partition tube 9.

  In other words, an imaginary downward annular concave portion and an upward annular concave portion are directly below / true between each adjacent specific portion (such as an intermediate portion) between adjacent downward annular concave portions 6f and adjacent upward annular concave portions 7g. It is formed by the above relationship, and an additional fixed volume capacity equivalent to the case where the partition tube 9 is attached can be realized.

  The size of the equivalent additional quantitative chamber capacity depends on the ratio between the height of the small-diameter cylindrical portion 10a of the partitioning cylinder 10 and that of the large-diameter cylindrical portion 10d, and the position of the upper cover body engaging position of the annular narrow width portion 10c described above. And the lower cover body engaging position of the annular narrow width portion 10f are specified as parameters using the degree of radial displacement.

  For example, the small-diameter cylindrical portion 10a and the large-diameter cylindrical portion 10d of the partition cylinder 10 have the same height, and the above-described radial shift between the small-diameter cylindrical portion and the large-diameter cylindrical portion is a downward ring. The additional quantitative chamber capacity corresponding to one concave portion 6f (or upward ring concave portion 7g) is an imaginary value in the radial direction of the downward ring concave portion and the upward ring concave portion to which the partition tube 10 is attached. This is equivalent to the capacity when the single cylindrical portion type partition tube 9 is provided at the intermediate portion.

  The metering valve mechanism of FIG. 1 is of the type using a liquefied gas propellant.

  The stem 2 in the stationary mode (b) is in a sealed state in close contact with the stem gasket 12 by the action of the coil spring 5, and the content distribution inlet 8 is in an open state.

  For this reason, the contents of the container main body are flown in the direction of A through the tube 13 by the action of the propellant (liquefied gas), so that the internal space of the additional unit (= the upper cover body 6, the lower cover body 7 and the stem extension member) 3) and an internal space area of the housing 4 and flows into the metering chamber.

  When the operation button 1 is pressed, the stem 2 and the stem extension member 3 move downward while resisting the elastic force of the coil spring 5 and shift to the quantitative injection mode (a).

  That is, as the stem extension member 3 (stem 2) moves downward, the sealing action surface 3a closes to the sealed portion 7b of the lower cover body 7 to close the content flow inlet 8, and The seal state with the stem gasket 12 is released.

  As a result, the inner space area of the housing 4 communicates with the outer space of the container via the hole 2b of the stem 2, the inner passage area 2a, the passage portion 1a of the operation button 1, and the injection hole 1b.

  And the fixed_quantity | quantitative_assay space space area (internal space area) of the additional unit which is the upstream of the internal space area of the housing 4 is connected with the container exterior space via the said housing internal space area.

  Due to this communication, a predetermined amount of contents that have entered the fixed-quantity chamber in the stationary mode are jetted to the outside from the jet hole 1b in a flow in the direction of B in general by the action of the mixed liquefied gas.

  Here, the central upper cylindrical portion 6a of the upper cover body 6 is set so that the lower end portion thereof extends to the vicinity of the bottom surface of the metering chamber of the lower cover body 7, and therefore the central upper cylindrical portion and the outer annular shape thereof. The contents accommodated in the upper part of the additional internal space area (= the main space area of the metering chamber) between the hanging part 5c inevitably descends and lowers the lower end part of the central upper cylindrical part 6a and the lower part. After passing through a gap between the cover body 7 and the upper surface (bottom surface of the metering chamber), the inner area of the central upper cylindrical portion rises.

  Therefore, generally, the content held in the bottom portion of the quantitative chamber, which is far from the hole 2b of the stem 2 and tends to remain without being discharged into the outer space of the container, It is surely injected in the form that is dragged by the flow.

  Needless to say, the stem 2 returns to the stationary mode position (b) by the elastic force of the coil spring 5 with the end of the pressing operation of the operation button 1.

  FIG. 3 shows a degassing mode of an aerosol type product using the metering valve mechanism of FIG.

  The basic feature of the degassing operation in this metering valve mechanism is that the upper part of the stem 2 (usually the upper part including the range in which the clearance with the mounting cap 11), which is usually a single member, is the contents to be injected, etc. It is comprised from the inner cylindrical part 2d provided with this internal passage area part, and the outer cylindrical part 2e attached to this in the form which can be removed.

And with this configuration,
(21) In a state where the degassing mode is not set (stationary mode or quantitative injection mode), the inner tubular portion 2d and the outer tubular portion 2e integrated therewith take a normal stem form (see FIG. 1),
(22) When shifting to the gas venting mode, first, the operation button 1 and the outer cylindrical part 2e that is strongly fitted with the operating button 1 are pulled out from the inner cylindrical part 2d in the upper direction in the drawing, so that A stem configuration (not shown) in a degassing preparation mode in which the cylindrical portion is discarded and the clearance (gap portion) with the central opening edge of the mounting cap 11 is increased,
(23) Next, the jig 14 is inserted into the clearance portion and the portion of the inner cylindrical portion 2d is laid down in the central opening of the mounting cap 11, and this state is maintained.

  Further, in this sideways state, the vertical position of the stem 2 (stem extension member 3) is the same as that in the stationary mode, and the sealing action of the stem extension member 3 that operates as the input valve (inflow valve) of the metering chamber. The surface 3a and the sealed portion 7b of the lower cover body 7 are separated from each other. That is, the opening area 8 on the metering chamber inlet side is opened without being closed.

  For this reason, as indicated by an arrow C, the residual gas in the container body is “tube 13 -opening area 8 -the outer peripheral surface of the stem extension member 3 and the inner peripheral surface of the central upper cylindrical portion 6a (upper cover body 6). Is released to the external space by the flow of the “circular gas region formed between the inner cylindrical portion 2d (stem 2) and the stem gasket 12 in an overlying state—the inner space of the housing 4 and the stem gasket 12”. . Here, when the cylindrical jig 14 is used, the residual gas also passes through this jig internal space.

  Of course, the residual gas in the additional quantitative chamber portion between the central upper tubular portion 6a and the partition tube 9 is “the outer peripheral surface of the stem extending member 3 and the inner peripheral surface of the central upper cylindrical portion 6a (upper cover body 6). Annular region between the internal space of the housing 4 and the gas outlet passage formed between the inner cylindrical portion 2d (stem 2) and the stem gasket 12 in a sideways state are discharged into the external space.

Of course, the present invention is not limited to the above embodiments, for example,
(31) For extending the extending member between the lower annular step portion 3b of the stem extending member 3 and the annular step portion 7e of the lower cover body 7 so as to be integrated with the stem 2 in the upward direction in the figure. A coil spring is provided (in this case, the concave and convex portions for positive fitting between the stem 2 and the stem extension member 3 may be omitted)
(32) Integrating the stem 2 and the stem extension member 3;
(33) The sectional shape of the vertical cylindrical intermediate cylindrical portion (between the first annular narrow portion 9b and the second annular narrow portion 9d) of the partition tube 9 swells outward or inward. Shape it,
(34) The partition tube 10 is used in a state where it is upside down (upside down) from the illustration.
(35) The cylindrical portion of the partition tube 10 has a shape in which the diameter continuously changes in the entire vertical direction shown in the drawing, or continuously changes in a part of the direction.
You may do it.

  Aerosol products to which the present invention is applied include cleaning agents, cleaning agents, antiperspirants, cooling agents, muscle anti-inflammatory agents, hair styling agents, hair treatment agents, hair dyes, hair restorers, cosmetics, shaving foams, foods , Droplets (such as vitamins), pharmaceuticals, quasi drugs, paints, gardening agents, repellents (insecticides), cleaners, deodorants, laundry glue, urethane foam, fire extinguishers, adhesives, lubrication There are various uses such as agents.

  The contents stored in the container body can be in various forms such as liquid, cream, gel, etc. Examples of ingredients blended in the contents include powdered substances, oil components, alcohols, interfaces Activators, polymer compounds, active ingredients according to each application, water and the like.

  As the powder, metal salt powder, inorganic powder, resin powder, or the like is used. For example, talc, kaolin, aluminum hydroxychloride (aluminum salt), calcium alginate, gold powder, silver powder, mica, carbonate, barium sulfate, cellulose, and a mixture thereof are used.

  As the oil component, silicone oil, palm oil, eucalyptus oil, camellia oil, olive oil, jojoba oil, paraffin oil, myristic acid, palmitic acid, stearic acid, linoleic acid, linolenic acid and the like are used.

  Examples of the alcohol include monovalent lower alcohols such as ethanol, monovalent higher alcohols such as lauryl alcohol, and polyhydric alcohols such as ethylene glycol, glycerin, and 1,3-butylene glycol.

  Surfactants include anionic surfactants such as sodium lauryl sulfate, nonionic surfactants such as polyoxyethylene oleyl ether, amphoteric surfactants such as lauryldimethylaminoacetic acid betaine, and cations such as alkyltrimethylammonium chloride. A surfactant is used.

  As the polymer compound, methyl cellulose, gelatin, starch, casein, hydroxyethyl cellulose, xanthan gum, carboxyvinyl polymer, or the like is used.

  Active ingredients according to each application include anti-inflammatory analgesics such as methyl salicylate and indomethacin, disinfectants such as sodium benzoate and cresol, insect repellents such as Hillesroid and diethyltoluamide, antiperspirants such as zinc oxide, Softeners such as camphor and menthol, anti-asthma drugs such as ephedrine and adrenaline, sweeteners such as sucralose and aspartame, adhesives and paints such as epoxy resin and urethane, dyes such as paraphenylenediamine and aminophenol, dihydrogen phosphate Use a fire extinguishing agent such as ammonium or sodium bicarbonate.

  Further, other than the above-mentioned contents, suspending agents, ultraviolet absorbers, emulsifiers, humectants, antioxidants, sequestering agents, etc. can be used.

  Liquefied gas such as liquefied petroleum gas, dimethyl ether, and fluorocarbon is used as the content injection gas in the aerosol type product.

It is a quantitative valve mechanism of an aerosol type product using a propellant of liquefied gas, (a) shows a quantitative injection mode, and (b) shows a stationary mode. It is a partition member for the additional fixed_quantity | quantitative_assay part setting in the additional unit of FIG. 1, (a) has shown the single cylindrical part type, (b) has each shown the double cylindrical part type. Fig. 3 shows a degassing mode in the metering valve mechanism of Fig. 1.

Explanation of symbols

1: Operation button 1a: passage portion 1b: injection hole 2: stem 2a: internal passage area 2b: hole portion 2c: annular step portion (ceiling surface portion)
2d: Inner cylindrical portion 2e: Outer cylindrical portion 3: Stem extension member 3a: Sealing surface (lower end side outer peripheral surface)
3b: Lower annular step portion 4: Housing 4a: Upper tubular portion 4b: Lower tubular portion 4c: Annular step portion 4d: Convex convex portion 5: Coil spring 6: Upper cover body 6a: Center upper tubular shape Part 6b: concave part for engagement (corresponding to the convex part 4d of the housing 4)
6c: annular hanging portion 6d: convex portion for engagement,
6e: a plurality of downward annular convex portions 6f: a plurality of downward annular concave portions 7: a lower cover body 7a: a central lower cylindrical portion 7b: an annular sealed portion 7c: an annular sheath portion 7d: an engaging concave portion (upper (Corresponding to the convex portion 6d of the cover body 6)
7e: annular step portion 7f: plural upward ring convex portions 7g: plural upward ring concave portions 8: content distribution inlet (annular space region)
9: Single tubular portion type partition tube 9a: first annular step 9b: first annular narrow portion 9c: second annular step 9d: second annular narrow portion 10: double tube Partition-type partition tube 10a: small-diameter cylindrical portion,
10b: third annular step portion 10c: third annular narrow portion 10d: large diameter tubular portion 10e: fourth annular step portion 10f: fourth annular narrow portion 11: mounting cap 12: stem gasket 13 : Tube 14: Jig A: Schematic flow direction of contents from the container body to the quantification chamber B: Schematic flow direction of contents from the quantification chamber to the external space of the container C: Residual gas in the degassing mode Schematic flow direction

Claims (6)

The housing side element attached to the housing of the aerosol container, the quantitative chamber input side element attached to the housing side element, and the volume of the additional quantitative chamber set between the housing side element and the quantitative chamber input side element A unit for adding a quantitative chamber comprising a partition member for selection,
The housing side element is
An opening for communicating with the internal space of the housing and enabling movement of the stem in response to a quantitative injection operation of the contents, a first engagement portion with the housing, and the quantitative chamber input side A second engagement portion with the element, and a first receiving portion for the partition member,
The quantitative chamber input side element is:
A contents inflow portion set in a closed state by movement of the stem, an engaged portion with respect to the second engaging portion, and a second receiving portion with respect to the partition member;
The partition member is
A first attached portion corresponding to the first receiving portion; and a second attached portion corresponding to the second receiving portion.
A unit for adding a quantitative chamber to an aerosol container. The partition member is a cylindrical portion;
The first receiving part and the second receiving part are each formed in a plurality of concentric shapes,
The unit for adding a metering chamber to an aerosol container according to claim 1. The cylindrical part is
One end is attached to the first receiving portion, and the other end is attached to the second engaging portion having a diameter different from that of the receiving portion.
The unit for adding a fixed amount chamber of an aerosol container according to claim 2. The unit for adding a quantitative chamber according to any one of claims 1 to 3, is attached to the housing.
A quantitative valve mechanism characterized by that. The stem is
The upper part corresponding to the opening of the mounting cap is composed of a main body part having an injection passage and an outer part provided in a removable manner on the main body part,
The body portion is
A gas outflow path is formed between the outer side portion and the stem gasket by being pushed laterally while being in the stationary mode position and displaced within the opening of the mounting cap.
The metering valve mechanism according to claim 4, wherein: The metering valve mechanism according to claim 4 or 5, and containing a propellant and contents,
Aerosol type product characterized by that.

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