JP6172844B2 - Forward-inverted valve mechanism compatible with injection gas filling and aerosol-type products equipped with this forward-inverted valve mechanism - Google Patents

Description

  The present invention relates to an upside-down valve mechanism that is compatible with injection gas filling, and in particular, to the bottom cylindrical portion of a cylindrical housing in which a stem that exhibits valve action in conjunction with an injection operation is disposed, The present invention relates to a normal inverted valve mechanism in which cylindrical attachments corresponding to each of an upright operation and an inverted operation are attached, and an injection gas is filled at high speed into an aerosol container from a vertical through portion formed in the housing.

  This is an upside-down valve mechanism that ensures a strong flow state of the injection gas filled at high speed into the aerosol container from the vertically penetrating portion of the housing and efficiently stirs the contents to be injected.

  Further, due to the action of the gas for injection filled in the aerosol container, for example, the powdered contents to be injected enter the inflow passage portion (the upper opening inflow passage portion in the upright state) of the injection contents during the inversion operation. This is an upside-down valve mechanism that does not get stuck in the vicinity of the ball valve in it.

  In the present specification, “upper” and “lower” indicate the positional relationship of the aerosol product in an upright state, and “upstream” and “downstream” indicate the positional relationship with respect to the flow of the contents to be ejected.

  2. Description of the Related Art Conventionally, a valve mechanism of a normal inverted operation type has been proposed that is provided with an inflow passage portion (upper opening inflow passage portion in an upright state) of the contents to be ejected during an inverted operation (see Patent Document 1).

  In the case of this normal inverted operation type valve mechanism, the inflow passage portion for the contents to be injected at the time of the inverted operation is formed on the outer side in the radial direction of the housing provided with the vertical through-hole for high-speed injection gas injection.

  That is, it is possible that the inflow passage portion of the contents to be injected at the time of the inversion operation is disposed directly below the injection gas filling passage portion of the housing.

Japanese Utility Model Publication No. 54-21212

  Thus, in the conventional normal inverted valve mechanism, the vertical direction through-hole for injection gas high-speed filling formed in the housing and the upper opening passage portion into which the contents to be injected flow during the inversion operation in the circumferential direction of the housing No positional relationship is taken into account.

  Therefore, when the upper opening passage portion for injecting the injected contents at the time of the inversion operation is located immediately below or near the vertical penetration portion for high-speed injection gas injection of the housing, the vertical penetration portion There is a problem that the gas for injection that flows into the aerosol container from the inside collides with the upper opening passage and the strong flow state is weakened.

  At this time, originally, the injection contents are strongly stirred by the injection gas (for example, carbon dioxide gas), so that the injection gas efficiently dissolves in the injection contents and the internal pressure of the aerosol container is increased. The degree of stirring action such as prevention is also reduced.

  Further, at the position of the above-described upper opening passage portion, strong gas for injection from the vertical through portion of the housing flows into the upper opening passage portion.

  For this reason, there is a problem that a large amount of the content to be injected flows into the upper opening passage portion and is easily clogged, and particularly clogged near a ball valve provided in the inside thereof.

  Therefore, in the present invention, the upper opening passage portion (the upper upstream passage portion of the attachment described later) for injecting the contents to be injected at the time of the inversion operation is provided from a portion directly below the vertical through portion for high-speed filling of the injection gas in the housing. It arrange | positions in the part which shifted | deviated to the circumferential direction of the said housing.

  In addition, in order to easily and reliably set the arrangement state, both the above-described attachment for forming the upper opening passage portion and the housing for forming the high-speed gas filling portion in the vertical direction through portion are used for positioning. Stop means are provided.

With these,
(11) To ensure a strong flow state of the gas for injection filled in the aerosol container at a high speed from the vertical through-hole portion of the housing to improve the efficiency of the stirring action of the contents to be injected,
(12) To prevent powdered injected contents, etc., from being fed into the inflow passage of the injected contents during the inversion operation and clogging near the ball valve, etc.
(13) The upper opening inflow passage portion (upper upstream passage portion of the attachment) is disposed at a portion shifted in the circumferential direction of the housing from a portion directly below the vertical through portion for high-speed injection gas injection of the housing. To improve work efficiency,
For the purpose.

The present invention solves the above-described problems by using a next-inverted valve mechanism that is compatible with gas injection .
(1) A lower cylindrical portion (for example, a lower cylinder described later) of a cylindrical housing (for example, a housing 4 described later) in which a stem (for example, a stem 2 described later) is disposed in conjunction with the injection operation. A cylindrical attachment (for example, attachment 6 to be described later) corresponding to each of an upright operation and an inverted operation of an aerosol type product is attached to the shape portion 4b), and a vertical penetration portion (for example, a vertical slit to be described later) formed in the housing. In the upside-down valve mechanism in which the gas for injection is filled into the aerosol container from the shaped part 4c),
The attachment is
A cylindrical downstream passage portion (for example, a downstream passage portion 6a described later) attached to the lower tubular portion;
A valve member (for example, which will be described later) is formed upward in a form that spreads outward in the radial direction when attached to the housing, communicates with the downstream passage portion, and closes during an upright operation and opens during an inverted operation. A ball valve 7) is provided in the internal space region, and an upper upstream passage portion (for example, an upper upstream passage portion 6b described later) into which the contents to be injected during the inversion operation flow ;
A lower upstream passage portion (for example, a lower upstream passage portion 6c described later) formed below the upper upstream passage in a manner communicating with the downstream passage portion and into which the contents to be injected during the upright operation flow. ) And
The housing and the attachment are:
The upper upstream passage portion is attached so as to be located only at a portion shifted in a circumferential direction of the housing from a portion directly below the vertical through portion.
The thing of a structure aspect is used.
(2) In (1) above,
The valve member is
A ball valve,
The upper upstream passage portion is
Integrated with the outer peripheral surface of the tubular downstream passage portion, the lower end portion is an upper tubular portion communicating with the downstream passage portion,
The lower upstream passage portion is
A lower cylindrical portion formed in a manner communicating with each of the downstream side passage portion and the upper upstream side passage portion below.
The thing of a structure aspect is used.
(3) In the above (1) and (2),
The housing and the attachment are each
The upper upstream passage portion includes locking means (for example, a convex portion 4d and a concave portion 6d, which will be described later) for positioning at a portion shifted in the circumferential direction of the housing from a portion directly below the vertically penetrating portion. ing,
The thing of a structure aspect is used.

  The present invention is directed to a forward-inverted valve mechanism that can be filled with an injection gas having the above-described configuration, and an aerosol type product that includes the forward-inverted valve mechanism.

The present invention is based on the above problem solving means.
(21) To increase the efficiency of the stirring action of the injected contents inside the aerosol container,
(22) To prevent clogging of powdered contents etc. in the inflow passage of the contents to be injected at the time of the inversion operation or the vicinity of the ball valve therein, etc.
(23) To improve the efficiency of the positioning operation in the circumferential direction between the upper opening passage portion (attachment) for injecting the contents to be injected during the inversion operation and the vertical through portion for high-speed injection gas injection of the housing.
be able to.

It is explanatory drawing which shows the filling mode of the gas for injection to the aerosol container of an operation button removal state provided with the normal inverted valve mechanism. It is explanatory drawing which shows the stationary mode of the aerosol type product after filling with the gas for injection of FIG. It is explanatory drawing which shows the erecting operation mode of the aerosol type product of FIG. It is explanatory drawing which shows the inverted operation mode of the aerosol type product of FIG.

  The form for implementing this invention is demonstrated using FIG. 1 thru | or FIG.

  The components of the reference numbers with the following alphabets (for example, the injection port 1a) indicate that they are in principle part of the components (for example, the operation buttons 1) of the numeral portions of the reference numbers.

1-4,
1 is a push-down operation button that can be moved up and down (operation unit).
1a is an injection port for the injected contents,
1b is a passage inside the operation button leading to the injection port 1a,
2 is a sheath-like stem integrated with the operation button 1,
2a is a plurality of lateral hole portions that exhibit an output valve action with the later-described stem gasket 3;
2b is a stem internal passage communicating with the lateral hole portion 2a and the operation button internal passage 1b,
3 is a stem gasket in which an outer portion is sandwiched between a housing 4 and a mounting cap 11, which will be described later, and an inner portion serves as an output valve between the lateral hole portion 2a,
Respectively.

Also,
4 is a cylindrical housing which is held in engagement with a mounting cap 11 which will be described later by a known crimping process and accommodates the lower portion of the stem 2;
4a accommodates the lower part of the stem 2 (substantially lower part from the side hole part 2a), and has a large-diameter upper cylindrical part that acts as an injection content storage space area,
4b is a small-diameter lower cylindrical portion that is continuously formed on the lower side of the upper cylindrical portion 4a and exhibits the action of the injected content inflow portion;
4c is a vertical slit-like portion (up-down direction penetrating portion) for injection gas filling formed in one place in the vertical direction at the upper end side outer peripheral surface of the upper cylindrical portion 4a,
Reference numeral 4d denotes an upper cylindrical portion 4a and a lower cylindrical portion 4b, which are so-called lower surface portions of the annular lateral connecting portion, and are formed in a region immediately below the vertical slit-shaped portion 4c, and have a positioning action when attaching an attachment 6 to be described later. Presenting convex part,
4e is formed in a plurality of lower inner peripheral surfaces of the upper cylindrical portion 4a, and a vertical rib L-shaped portion in which a groove-like portion for passing the contents to be ejected is set,
5 is a coil spring disposed between the lower surface step portion of the stem 2 and the bottom surface portion of the vertical rib L-shaped 4e, and biases the stem upward.
Respectively.

Also,
6 is an attachment engaged with the upper part of the outer peripheral surface of the lower cylindrical portion 4b of the housing 4,
6a is a cylindrical downstream passage portion attached to the lower cylindrical portion 4b,
6b is a cylindrical upper upstream passage part (upper cylindrical part) in which the downstream side passage part 6a and outer peripheral surfaces are connected (partially),
6c is a cylindrical lower upstream passage portion (lower tubular portion) formed in a manner communicating with each of the downstream side passage portion 6a and the upper upstream side passage portion 6b below the respective lower end sides,
6d is a concave portion that is formed at the upper end portion of the downstream side passage portion 6a that is opposite to the upper upstream side passage portion 6b and engages with the convex portion 4d of the housing 4.
6e is a through portion formed between the lower end sides of the downstream passage portion 6a and the upper upstream passage portion 6b,
6f is a valve seat having an annular taper surface formed in a substantially vertical middle portion of the inner peripheral surface of the upper upstream passage portion 6b and in close contact with a ball valve 7 described later when the aerosol type product is upright,
6g is formed in an aspect composed of an upward inclined surface in the vertical direction and a subsequent downward inclined surface, for example, at a radially opposite position of the upper end portion of the inner peripheral surface of the upper upstream passage portion 6b. A latching action part for holding a ball valve 7 to be described later when inverted,
Respectively.

Also,
7 has a diameter smaller than the inner diameter of the upper portion of the upper upstream side passage portion 6b. The ball is held in contact with the valve seat 6f when the aerosol type product is upright and is held by the locking portion 6g when inverted. valve,
8 is a dip tube for injecting the injected contents attached to the lower upstream side passage portion 6c;
9 is a mounting cap for engaging and holding the housing 4 by sandwiching the stem gasket 3;
10 is an aerosol container in which a mounting cap 9 is attached to the bead portion on the upper end side by a known clinching process, and the contents to be injected and the gas for injection are accommodated in the internal space area;
Respectively.

Also,
A1 is a high-speed filling flow of the injection gas filled in the aerosol container through the outer space of the housing 4 (see FIG. 1).
A2 is a low-speed filling flow of the injection gas filled in the aerosol container through the internal space region of the housing 4 (see FIG. 1).
B is the flow of the contents to be injected during upright operation of the aerosol type product (see Fig. 3),
C is the flow of the injected contents during the upside-down operation of the aerosol type product (see Fig. 4),
Respectively.

  Here, the operation button 1, the stem 2, the housing 4, the attachment 6 and the dip tube 8 are made of synthetic resin such as polypropylene, polyethylene, polyacetal, nylon, polybutylene terephthalate.

  The stem gasket 3 is made of rubber or synthetic resin. The coil spring 5 and the ball valve 7 are made of metal or synthetic resin, and the mounting cap 9 and the aerosol container 10 are made of metal.

The basic features of the illustrated upside-down valve mechanism with attachments are as follows:
(31) Originally, the strength of the high-speed filling flow A1 of the jetting gas flowing out from the vertical slit-like portion 4c of the housing 4 in the substantially downward direction is not hindered by attaching the attachment 6 necessary for the inversion operation to the housing. like,
The vertical positional relationship between the vertical slit-like portion 4c in the vertical direction and the upper upstream passage portion 6b that becomes the inflow portion of the contents to be injected during the inversion operation is completely shifted,
(32) So that the assembly work to integrate the housing 4 and the attachment 6 with this shifted circumferential positional relationship can be performed reliably and easily.
A convex portion 4d is formed on the housing, and a concave portion 6d that engages with the convex portion is formed on the attachment.
That is.

When integrating the housing 4 and the attachment 6, for example,
(41) Insert the cylindrical downstream passage portion 6a of the attachment 6 into the outer peripheral surface side of the lower cylindrical portion 4b of the housing 4 in an arbitrary circumferential positional relationship,
(42) The housing 4 and / or the attachment 6 in the inserted state is rotated further in the circumferential direction while being pushed further,
(43) By the turning operation while pushing, the convex portion 4d of the housing 4 is set to the circumferential positioning state in which the concave portion 6d of the attachment 6 is inserted.

  The circumferential positioning state of the housing 4 and the attachment 6 in the above (43) includes the annular concave portion at the upper end portion of the outer peripheral surface of the lower cylindrical portion 4b and the upper end portion of the inner peripheral surface of the cylindrical downstream passage portion 6a. It is held by the engaging action with the ring convex portion.

The flow of the injection gas to the inner space region of the aerosol container 10 in the filling mode of FIG.
(51) Regarding the external space of the housing 4
Via “the gap between the outer peripheral surface of the stem 2 and the central opening of the mounting cap 9—the gap between the stem gasket 3 and the mounting cap ceiling near the center opening—the vertical slit 4c of the housing 4” High-speed filling flow A1,
(52) Regarding the internal space area of each of the stem 2 and the housing 4
“Stem internal passage 2b—lateral hole portion 2a—gap portion between stem 2 and stem gasket 3—internal space area of housing 4 (upper cylindrical portion 4a, lower cylindrical portion 4b) —downstream passage portion of attachment 6 6a-through portion 6e-downward upstream passage portion 6c-dip tube 8 "
It is divided roughly into.

  The injection gas is supplied from a known filling adapter (not shown) to the gap between the outer peripheral surface of the stem 2 and the central opening of the mounting cap 9 and to the stem internal passage 2b.

  In the stationary mode (upright state) of FIG. 2, the operation button 1 and the stem 2 are moved upward by the action of the coil spring 5 and held at the illustrated position.

At this time,
(61) The lateral hole 2a of the stem 2 is closed by the stem gasket 3,
(62) The ball valve 7 is in close contact with the valve seat of the attachment 6 due to its own weight.
(63) The contents to be ejected are filled in the internal space of the housing 4 and the attachment 6 on the upstream side of the lateral hole 2a.

  FIG. 3 shows an erecting operation mode in which the closed state of the lateral hole portion 2a is released by pressing the operation button 1 of FIG. 2 and moving the stem 2 downward.

  As shown by an arrow B in FIG. 3, the contents to be ejected are “dip tube 8-lower upstream passage portion 6c-penetrating portion 6e-downstream passage portion 6a-lower cylindrical portion 4b-upper side. It is injected into the external space through the cylindrical portion 4a-lateral hole portion 2a-stem internal passage 2b-operation button internal passage 1b-injection port 1a ".

  FIG. 4 shows an inverted operation mode in which the closed state of the lateral hole portion 2a is released by pressing the operation button 1 of FIG. 2 and moving the stem 2 in the state where the aerosol type product of FIG. 2 is turned upside down. Show.

In the inverted operation mode of FIG.
(71) When the ball valve 7 falls by its own weight and comes into contact with the locking action portion 6b of the attachment 6, the contents to be ejected pass between the ball valve and the inner peripheral surface of the upper upstream passage portion 6b. Space is set,
(72) The dip tube 8 is bent as is well known, and the inflow side end of the injected contents is located in the upright upper space within the aerosol container (not shown),
(73) The contents to be ejected (liquid phase component, etc.) of the aerosol container 10 are present in the mounting cap side space area that is the upper side when the container is upright.

  4, as indicated by an arrow C, “(upper upstream passage portion 6b) / (dip tube 8—lower upstream passage portion 6c) —penetrating portion 6e—downstream side” It is injected into the external space region through the passage portion 6a-lower cylindrical portion 4b-upper cylindrical portion 4a-lateral hole portion 2a-stem internal passage 2b-operation button internal passage 1b-injection port 1a ".

  When the user releases the push-down operation of the operation button 1 in the upright operation mode and the inverted operation mode, the stem 2 and the operation button integrated with the stem 2 move upward due to the elastic action of the coil spring 5. Return to the 1 still mode position.

In addition, of course, this invention is not limited to the content of illustration, for example,
(81) A concave portion is formed instead of the convex portion 4d of the housing 4, and a convex portion is formed instead of the concave portion 6d of the attachment.
(82) forming a plurality of vertical slit-like portions of the housing 4;
You may do it.

  Aerosol-type products to which the present invention is applied include soaps, disinfectants, cosmetics, emulsions, detergents, shampoos, rinses, cleaning agents, cleaning agents, antiperspirants, cooling agents, muscle anti-inflammatory agents, hair styling agents, hair treatments. Agent, hair dye, hair restorer, cosmetics, shaving foam, food, droplets (such as vitamins), pharmaceuticals, quasi-drugs, paints, horticultural agents, repellents (insecticides), cleaners, deodorants There are various uses such as agents, laundry glue, urethane foam, fire extinguishers, adhesives and lubricants.

  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.

  Furthermore, a suspension agent, an ultraviolet absorber, an emulsifier, a humectant, an antioxidant, a metal ion sequestering agent, and the like other than the contents to be ejected can be used.

  As the injection gas, a compressed gas such as carbon dioxide, nitrogen gas, compressed air, oxygen gas, rare gas, or a mixed gas thereof, or a liquefied gas such as liquefied petroleum gas, dimethyl ether, or fluorocarbon is used.

1: Operation buttons (operation unit)
1a: injection port 1b: operation button internal passage 2: stem 2a: horizontal hole portion 2b: stem internal passage 3: stem gasket 4: housing 4a: upper cylindrical portion 4b: lower cylindrical portion 4c: vertical slit-shaped portion 4d : Convex portion 4e: vertical rib L-shaped portion 5: coil spring 6: attachment
6a: Downstream passage portion 6b: Upper upstream passage portion 6c: Lower upstream passage portion 6d: Concave portion
6e: Penetration part 6f: Valve seat 6g: Locking action part 7: Ball valve 8: Dip tube 9: Mounting cap 10: Aerosol container A1: High-speed filling flow of injection gas (see FIG. 1)
A2: Low-speed filling flow of injection gas (see FIG. 1)
B: Flow of contents to be injected during upright operation (see Fig. 3)
C: Flow of contents to be injected during upside-down operation (see Fig. 4)

Claims (4)

A cylindrical attachment corresponding to each of the upright operation and the inverted operation of the aerosol type product is attached to the lower cylindrical portion of the cylindrical housing in which the stem that exhibits valve action in conjunction with the injection operation is disposed, In the upside down valve mechanism in which the gas for injection is filled into the aerosol container from the vertical through-hole formed in the housing,
The attachment is
A cylindrical downstream passage portion attached to the lower cylindrical portion;
The valve member is formed in an upwardly extending manner in a radially outward manner when attached to the housing, communicates with the downstream passage portion, and closes in an upright operation and opens in an inverted operation. An upper upstream passage portion into which the contents to be injected during the inversion operation flow , and
A lower upstream passage portion that is formed below the upper upstream passage portion in a manner communicating with the downstream passage portion, and into which the contents to be injected during the upright operation flow ,
The housing and the attachment are:
The upper upstream passage portion is attached so as to be located only at a portion shifted in a circumferential direction of the housing from a portion directly below the vertical through portion.
This is an upside-down valve mechanism for filling gas for injection. The valve member is
A ball valve,
The upper upstream passage portion is
Integrated with the outer peripheral surface of the tubular downstream passage portion, the lower end portion is an upper tubular portion communicating with the downstream passage portion,
The lower upstream passage portion is
A lower cylindrical portion formed in a manner communicating with each of the downstream side passage portion and the upper upstream side passage portion below.
The upside-down valve mechanism corresponding to the gas filling for injection according to claim 1. The housing and the attachment are each
The upper upstream passage portion includes locking means for positioning at a portion shifted in a circumferential direction of the housing from a portion directly below the vertical through portion.
3. A vertically inverted valve mechanism for filling an injection gas according to claim 1 or 2. It is provided with the upside-down valve mechanism corresponding to the injection gas filling according to any one of claims 1 to 3, and contains the contents to be injected and the injection gas.
Aerosol type product characterized by that.

Images