CN112469641A - Quantitative spraying mechanism of aerosol container and aerosol type product with the same - Google Patents
Quantitative spraying mechanism of aerosol container and aerosol type product with the same Download PDFInfo
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- CN112469641A CN112469641A CN201880095945.2A CN201880095945A CN112469641A CN 112469641 A CN112469641 A CN 112469641A CN 201880095945 A CN201880095945 A CN 201880095945A CN 112469641 A CN112469641 A CN 112469641A
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- 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
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- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
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Abstract
The invention provides a quantitative injection mechanism using a quantitative chamber elongated in a longitudinal direction, and aims to improve an injection state and simplify assembly. The dosing chamber is composed of a main casing (4) and an additional casing (7) for expanding the dosing chamber, the additional casing (7) has a straight inner peripheral surface (7c) in the longitudinal direction, is in a straight cylindrical shape as a whole, is fitted to the main casing (4), and an extension rod (8) in an integrated state in contact with the main rod (5) and a spring (9) for biasing the extension rod (8) upward are disposed at the additional casing (7). The main lever (5) that is in contact with the extension lever (8) by the spring (9) is also indirectly biased upward. The inflow valve to the dosing chamber is constituted by an annular seal member (10) mounted at the lower end side portion of the additional housing (7) and the lower end side outer surface of the extension rod (8).
Description
Technical Field
The present invention relates to a dosing mechanism for aerosol type products.
More particularly, the present invention relates to a fixed-quantity injection mechanism including a downstream-side fixed-quantity chamber in a main casing containing a rod that directly cooperates with an injection operation and exhibits a valve action, and an upstream-side fixed-quantity chamber having an additional tank structure in a longitudinal direction, the upstream-side fixed-quantity chamber including an inflow valve that communicates with the downstream-side fixed-quantity chamber in the longitudinal direction and is shifted from an open state to a closed state by the injection operation.
The upstream side fixed amount chamber of the extension tank structure compensates for a so-called capacity shortage of the downstream side fixed amount chamber set in the normal main casing, and enables fixed amount injection of a large capacity.
Background
Conventionally, in a fixed-quantity injection mechanism in which a liquefied gas is used as an injection agent to be mixed with a content, the following occurs in a fixed-quantity chamber in which an upstream-side inflow valve and a downstream-side discharge valve are separated and a flow passage cross section is narrowed: when the discharge valve is opened, the contents therebetween, particularly the contents in the vicinity of the lowermost inflow valve, do not sufficiently flow out.
The propellant stored in the quantitative chamber together with the content is vaporized, and the vaporized propellant accumulated in the vicinity of the upper discharge valve is discharged to the external space region while pressing the lower content at the start of injection, and the vaporized propellant also expands while moving in the direction of the discharge valve after the start of injection and presses the lower content, so that the content is less positively pushed out to the upper side.
Therefore, in order to ensure the content extrusion action, the extension tank is set to a laterally wide shape which is long in the radial direction while suppressing the length in the longitudinal direction which is the flow direction of the content (see patent document 1).
In addition, in the case where a U-shaped path for pushing out the content by using the vaporized propellant is provided in the tank, a tank having a wide width is used (see patent document 2).
In the case of using such a horizontally wide type tank, there is room for improvement in the following points: the stirring action is hard to act on the contents near the inner peripheral surface of the housing away from the lever with the movement of the lever at the time of the spraying operation.
In the case of aerosol containers having a narrow opening due to the necessity of securing strength, such as plastic aerosol containers made of PET or glass aerosol containers, a wide-width thick extension tank cannot pass through the opening of the container, and therefore, a constant-volume injection mechanism without an extension tank is provided, and there is room for improvement in terms of increasing the injection capacity (see patent document 3).
Documents of the prior art
Patent document
Patent document 1: japanese laid-open patent publication No. 2008-265794
Patent document 2: japanese patent laid-open No. 2008-308197
Patent document 3: japanese patent laid-open No. 2014-088187
Disclosure of Invention
Problems to be solved by the invention
The conventional dosing chamber has the following structure: in order to sufficiently discharge the stored content, the distance to the discharge valve is set short, or the propellant vaporized upward and accumulated pushes out the content in the lower portion of the quantitative chamber toward the discharge valve.
Therefore, in the case of aiming to increase the injection volume, in the quantitative chamber which is set to be elongated in the longitudinal direction, the action of the propellant which vaporizes upward and accumulates to push out the content in the lower portion of the quantitative chamber to the discharge valve side is small, and it is considered difficult to sufficiently discharge the content and secure the quantitative capability.
However, the present applicant has made many studies, experiments, and verifications based on new concepts, and has confirmed that even a dosing chamber which has been conventionally considered unsuitable to be set to be elongated in the flow path direction can sufficiently discharge the contents if a movable member (rod) for promoting stirring of the contents and the propellant is present inside the dosing chamber.
In order to meet the demand for a constant-volume spraying mechanism applicable to an aerosol container having a narrow opening, the present invention is directed to improving the spraying state by employing a vertically elongated constant-volume chamber and setting a rod as a movable member for promoting stirring of the contents and the propellant in the chamber.
Further, it is an object to simplify assembly by providing an extension portion of a rod that extends as the dosing chamber expands in the form of an extension rod that is brought into contact with the main rod to be interlocked therewith.
Means for solving the problems
The present invention solves the above problems as follows.
(1) A quantitative spraying mechanism for spraying the contents of an expanded quantitative chamber (e.g., a downstream quantitative chamber A and an upstream quantitative chamber B, C described later) extending in the longitudinal direction of an aerosol container into an external space region by the action of an inflow valve (e.g., a lower end portion 8d and an annular sealing member 10 described later) and an outflow valve (e.g., a transverse hole portion 5a and a stem gasket 6 described later), the quantitative spraying mechanism being configured as follows:
the enlarged dosing chamber comprises:
a main casing (for example, a main casing 4 described later) in which the outflow valve is set; and
an additional casing (for example, additional casings 7 and 13 described later) for expanding the quantitative chamber, having a straight inner peripheral surface (for example, straight inner peripheral surfaces 7c and 13c described later) in the longitudinal direction, having a straight cylindrical shape as a whole, fitted to the main casing, and provided with the inflow valve,
the outflow valve includes:
a main lever (for example, a main lever 5 described later) disposed in the main casing and having a hole (for example, a lateral hole 5a described later) for passing a content therethrough and a content passage portion (for example, a content passage portion 5b described later) connected to the hole on the downstream side; and
an elastically deformable downstream-side annular valve member (e.g., a rod washer 6 described later) is attached to the upper end side portion of the main housing in contact with the outer peripheral surface of the main rod, and functions to open and close the hole and the main housing,
the inflow valve includes:
an extension bar (for example, an extension bar 8 described later) disposed at the additional housing in an integrated state in which the extension bar is in contact with the main bar; and
an elastically deformable upstream-side annular valve member (e.g., an annular seal member 10 described later) which is attached to a lower end-side portion of the additional housing and which functions to open and close between the additional housing and a lower end-side outer surface of the extension rod,
the additional housing is provided therein with an elastic member (for example, a spring 9 described later) that biases the extension pole upward to abut against the main pole and indirectly biases the main pole upward from the extension pole by the abutting action.
(2) In the above (1), the following configuration is used:
the contact portion between the main rod and the extension rod has a convex portion (for example, a lower end portion 5c described later) formed at one side thereof, and a concave portion (for example, a ceiling concave portion 8a described later) that receives and holds the convex portion formed at the other side thereof.
The present invention is directed to a metering mechanism for an aerosol container having such a structure and an aerosol product using the metering mechanism.
ADVANTAGEOUS EFFECTS OF INVENTION
By adopting the above structure, the invention has the advantages that,
the injection state of a quantitative injection mechanism applicable to an aerosol container having a narrow opening is improved, and the assembly of the quantitative injection mechanism is simplified.
Drawings
Fig. 1 is an explanatory diagram showing a stationary mode (inlet valve: open, discharge valve: closed) of the constant-volume injection mechanism of the invention in which the discharge amount per one operation is 1mL standard.
Fig. 2 is an explanatory diagram showing an operation mode (inlet valve: closed, outlet valve: open) of the fixed-quantity injection mechanism of fig. 1.
Fig. 3 is an explanatory diagram illustrating assembly of the fixed-quantity spray mechanism of fig. 1.
Fig. 4 is an explanatory diagram showing a stationary mode (inlet valve: open, discharge valve: closed) of the constant-volume injection mechanism of the standard of 0.5mL of the ejection volume per one operation of the present invention.
Detailed Description
A mode for carrying out the present invention will be described with reference to fig. 1 to 4.
The following components (for example, the partition portion 4a) with alphabetic reference numerals denote in principle a part of the components (for example, the main casing 4) of the numeral portion of the reference numerals.
The following reference numerals are used in fig. 1 to 4.
In addition, the additional housing 7 is used only in fig. 1 to 3, and the additional housing 13 is used only in fig. 4.
In this case, the amount of the solvent to be used,
reference numeral 1 denotes a container body which contains contents to be sprayed and liquefied gas or the like as a propellant,
2 denotes a mounting cup mounted at an opening portion of an upper side of the container body 1,
a mounting gasket 3 disposed between the upper opening of the container body 1 and the lower surface of the mounting cup 2 to prevent leakage of the contents and the propellant,
4 denotes a cylindrical main casing which is engaged and held at the central portion of the mounting cup 2, houses a main lever 5 described later, and constitutes a downstream side fixed amount chamber A described later,
4a denotes a partition having a communication hole which is passed through by a lower end portion 5c of a main lever 5 described later and serves as a flow path for the content/propellant at a central portion thereof, and which holds an upper surface of an annular seal member 10 described later by a lower surface without using additional housings 7 and 13,
4b represents a downward tubular portion on the lower side of the partition portion 4a,
4c denotes a total of six longitudinal rib-shaped portions, which protrude from the inner peripheral surface of the upper side of the partition portion 4a of the main casing 4,
4d is an upward stepped portion which is provided at the vertical rib-shaped portion 4c and holds the lower end portion of the spring 9 described later without using the extension rod 8 described later,
5 denotes a main lever, which is an injection operation target, provided at the inside of the main casing 4 in a protruding form from the central hole portion of the mounting cup 2,
5a denotes a total of two cross hole portions formed at the main lever 5 and constituting a discharge valve (downstream valve) together with a lever washer 6 described later,
5b denotes a content passage portion formed on the downstream side thereof from the lateral hole portion 5a,
5c represents a lower end portion which abuts on a top surface recess 8a of an extension rod 8 described later and constitutes an inflow valve together with an annular seal member 10 described later when the extension rod 8 is not used,
5d is a stepped-down portion for holding an upper end portion of a spring 9 described later without using an extension rod 8 described later,
reference numeral 6 denotes a well-known stem gasket which is disposed between the central top surface of the mounting cup 2 and the main housing 4, has a central hole portion which is in close contact with the outer peripheral surface of the main stem 5 in a slidable manner, and constitutes a discharge valve (downstream valve) together with the outer opening side of the lateral hole portion 5 a.
In addition to this, the present invention is,
7 denotes an additional casing for 1mL constant-volume injection, which is formed in a straight cylindrical shape as a whole and fitted to the outer peripheral surface of the suspended cylindrical portion 4b,
7a is an annular step portion provided on the inner peripheral surface of the additional housing 7 and abutting against the lower end surface of the vertically-extending cylindrical portion 4b to determine the fitting position with the main housing 4,
7b is a partition having a communication hole which allows a lower end portion 8d of an extension rod 8 described later to pass therethrough and serves as a flow path for the contents and the propellant, and which holds a lower end portion of a spring 9 described later by an upper surface and holds an upper surface of an annular seal member 10 described later by a lower surface,
7c denotes a straight inner peripheral surface between the annular step portion 7a and the partition portion 7b,
7d shows a total of three longitudinal ribs which protrude from the partition 7b and the straight inner peripheral surface 7c, guide an extension rod 8 and a spring 9 which will be described later,
7e a vertically-extending cylindrical portion provided in a manner to extend vertically from the partition portion 7b,
an extension rod 8 provided inside the additional housing 7 or an additional housing 13 described later and interlocked with the movement of the main rod 5 by the discharge operation,
8a denotes a top surface concave portion which abuts and holds the lower end portion 5c of the main lever 5,
8b is a large diameter portion which is guided by the inner surface of the hanging cylindrical portion 4b, and which is configured such that the positions of the lower end portion 5c and the top surface recess portion 8a are matched at the time of assembly,
8c is a slit portion which is provided at the outer peripheral surface of the large diameter portion 8b and ensures a flow path of the contents,
8d denotes a lower end portion which constitutes an inflow valve (upstream valve) together with an annular seal member 10 described later,
and 8e, a stepped-down portion that holds an upper end of a spring 9 described later.
In addition to this, the present invention is,
9 denotes a spring which biases the extension rod 8 and the main rod 5 abutting thereto toward the upper side,
10 denotes an annular seal member having an annular skirt portion hanging downward at a central hole portion thereof, and constituting an inflow valve (upstream valve) together with a lower end portion of the extension rod 8,
12 denotes a dip tube, which is installed at the lower end portion of the liner 11, guides the contents of the container body 1 to the inflow valve,
a represents a downstream side quantitative chamber of about 0.2mL, which is defined at the interior of the main casing 4,
b represents an upstream side quantitative chamber of about 0.8mL, which is defined inside the additional casing 7 and communicates with the downstream side quantitative chamber a via the central hole portion of the partition 4 a.
In addition, in fig. 4,
13 denotes an additional housing for 0.5mL fixed-quantity injection, which is formed in a straight cylindrical shape as a whole and fitted to the outer peripheral surface of the suspended cylindrical portion 4b,
13a is an annular step portion provided on the inner peripheral surface of the additional housing 13 and abutting against the lower end surface of the vertically-extending cylindrical portion 4b to determine the fitting position with the main housing 4,
13b is a partition having a communication hole which allows the lower end 8d of the extension rod 8 described later to pass therethrough and serves as a flow path for the contents/propellant, and which holds the lower end of the spring 9 described later on the upper surface and the upper surface of the annular seal member 10 described later on the lower surface,
13c denotes a straight inner peripheral surface continuing from the annular step portion 13a to the upstream side,
13d denotes a small inner diameter portion, which is provided between the partition portion 13b and the straight inner peripheral surface 13c, guides the extension bar 8 and the spring 9,
13e a hanging cylindrical part provided in a form hanging from the partition part 13b,
c represents an upstream side quantitative chamber of about 0.3mL, which is defined inside the additional casing 13 and communicates with the downstream side quantitative chamber a via the central hole portion of the partition 4 a.
Here, the main housing 4, the main lever 5, the additional housing 7, the extension lever 8, the bush 11, the dip tube 12, and the additional housing 13 are made of plastic such as polypropylene, polyethylene, polyacetal, nylon, polybutylene terephthalate, or the like.
Furthermore, the spring 9 is made of plastic or metal, for example. The mounting cup 2 is made of metal, for example. The mounting washer 3, the stem washer 6, and the annular sealing member 10 are made of, for example, plastic composed of polypropylene, polyethylene, or the like, rubber, or elastomer.
The container body 1 is made of plastic such as polyethylene terephthalate, polyethylene naphthalate, or the like, or made of glass, for example.
The container body 1 contains liquid contents and propellant, and a vaporized propellant is stored above the container body. It is desirable that the liquid content and the propellant are naturally mixed, but if not naturally mixed, the user may mix them by shaking the container body 1 or the like immediately before use.
Fig. 1 shows a stationary mode of the fixed-quantity injection mechanism in which the injection quantity per one operation is 1mL standard.
The volumes of the downstream side quantitative determination chamber A and the upstream side quantitative determination chamber B were about 0.2mL and about 0.8mL, respectively, and they were always communicated through the central hole portion of the partition 4a to constitute a total of about 1mL of quantitative chambers.
Since the additional housing 7 is a straight tube and is thin as a whole, it can be attached without any problem even in a narrow opening portion of the container body 1.
In the state shown in fig. 1, the main lever 5 and the extension lever 8 are biased by the spring 9 and set at upper positions, the horizontal hole portion 5a of the main lever 5 is positioned above the lever washer 6, the discharge valve is closed, the lower end portion 8d of the extension lever 8 is separated from the annular seal member 10, the inflow valve is opened, and the downstream side quantitative chamber a and the upstream side quantitative chamber B are filled with the content and the propellant flowing through the path indicated by the arrow in the previous operation.
Since the main lever 5 is elastically biased upward from the end thereof via the extension lever 8 abutting against the main lever, the lower end portion 5c of the main lever 5 and the top surface recess 8a of the extension lever 8 are not separated from each other, and the main lever 5 and the extension lever 8 always move integrally.
Since it is not necessary to engage the main lever 5 and the extension lever 8, an assembly step for this purpose is not necessary. When the additional housing 7, in which the extension rod 8 and the spring 9 are arranged, is fitted to the main housing 4 in which the main lever 5 is assembled, the large diameter portion 8b of the extension rod 8 is guided into the interior of the hanging cylindrical portion 4b, and the top surface recess portion 8a naturally comes into contact with the lower end portion 5c of the main lever 5.
In general, actuators (not shown) suitable for various applications, which are direct operators of users, are attached to the upper end of the main pole 5.
When the main lever 5 is moved downward by a user's pressing operation from the state shown in fig. 1, the lower end portion 8d of the extension lever 8 linked with the main lever 5 abuts on the inner peripheral surface of the annular seal member 10, the inflow valve is closed, and the downstream side quantitative chamber a and the upstream side quantitative chamber B are set as closed spaces.
Further, by the pressing operation of the main lever 5, the contents and the blasting agent stored at the downstream side quantitative chamber a and the upstream side quantitative chamber B are stirred by the side surfaces of the main lever 5 and the extension lever 8.
Fig. 2 shows an operation mode of discharging the contents in a state where the main lever 5 is further pressed.
In this state, the lateral hole portion 5a of the main lever 5 is positioned below the lever washer 6, the discharge valve is opened, the downstream side quantitative chamber a and the upstream side quantitative chamber B are communicated with the external space region through the lateral hole portion 5a, the stirred propellant is vaporized, and the propellant is stably discharged from the content passage portion 5B together with the content through the path of the arrow shown in the figure.
In this way, the extension rod 8 is provided in the upstream side quantitative chamber B defined by the straight inner peripheral surface 7c in the longitudinal direction, and the content and the propellant stored in the upstream side quantitative chamber B are stirred by the side surface of the extension rod 8, so that the content can be stably discharged even if the additional housing 7 having a straight cylindrical shape as a whole is used.
When the discharge of the contents and the propellant is completed, the pressure inside the downstream side quantitative chamber a and the upstream side quantitative chamber B is lowered until it becomes substantially atmospheric pressure.
When the main lever 5 is released from being pushed after the end of discharge, the extension lever 8 and the main lever 5 abutting against it are moved upward by the biasing force of the spring 9, the horizontal hole portion 5a of the main lever 5 is closed by the lever washer 6, and the discharge valve is closed.
When the lower end portion 8d is separated from the annular seal member 10 and the inflow valve is opened by the subsequent movement of the main rod 5 and the extension rod 8, the content and the propellant from the container main body 1 flow into the downstream side quantitative chamber a and the upstream side quantitative chamber B, in which the internal pressure is reduced, by the vaporization pressure of the propellant contained in the container main body 1. The content and the propellant flowing in become the next discharge target.
The primary lever 5 and the extension lever 8 move until the intermediate step of the primary lever 5 abuts the lever washer 6, and return to the rest mode of fig. 1.
Fig. 3 shows the assembly of the dosing mechanism of fig. 1.
First, the mounting cup 2, the mounting washer 3, the main housing 4, the main lever 5, and the lever washer 6 are assembled into a common upper unit.
Next, the additional housing 7 and the extension rod 8 are prepared according to the required volume of the fixed-amount chamber, and are assembled to the upper unit together with the spring 9, the annular seal member 10, and the bush 11.
A dip tube 12 corresponding to the distance from the bottom of the container body 1 is mounted on the liner 11.
In addition, the additional housing 7 and the extension rod 8 are omitted, the spring 9 is disposed between the upward stepped portion 4d of the main housing 4 and the downward stepped portion 5d of the main lever 5, and the annular seal member 10 and the bush 11 are mounted at the inner peripheral surface of the hanging cylindrical portion 4b of the main housing 4, whereby a 0.2 mL-sized metered injection mechanism can be formed.
In this way, since the components are shared with the small-capacity fixed-quantity injection mechanism without using the additional housing 7, the management cost can be reduced.
Further, since the assembly line can be shared in the same manner as the above-described upper unit except for the attachment of the spring 9, the annular seal member 10, and the bush 11, the manufacturing cost can be reduced.
Fig. 4 shows a stationary mode of the fixed-quantity injection mechanism of which the injection quantity per one operation is of the 0.5mL specification.
The difference from fig. 1 is that an additional casing 13 having the same length but different quantitative chamber capacities is used instead of the additional casing 7.
The volumes of the downstream side quantitative chamber A and the upstream side quantitative chamber C were about 0.2mL and about 0.3mL, respectively, and they were always communicated through the central hole portion of the partition 4a to constitute a total of about 0.5mL of quantitative chamber.
The portion of the straight inner peripheral surface 13c corresponding to the straight inner peripheral surface 7c of the additional housing 13 is shorter than that of the additional housing 7, and the lower portion of the straight inner peripheral surface 13c is set to have a small inner diameter to ensure a flow path of the contents when passing through the extension rod 8.
In this way, the additional casing 13 has the same overall length as the additional casing 7, and the upstream side fixed amount chamber C is set smaller than the upstream side fixed amount chamber B of the additional casing 7.
This makes it possible to make the extension rod 8 common, and to reduce the manufacturing cost and the management cost. Further, since the lengths of the additional housing 7 and the additional housing 13 are the same, the assembly can be performed using the same production line as the constant-volume injection mechanism of fig. 1.
Of course, the quantitative spraying mechanism of the aerosol container of the present invention is not limited to the illustrated embodiment, and for example, the following may be performed:
a constant-volume injection mechanism having a discharge volume per operation of not more than 0.5mL is formed by changing the length of the straight inner peripheral surface 13c of the additional housing 13;
the present invention is applicable to metal cans having a large container opening portion and metal cans having a small container opening portion as a whole, instead of the mounting cup 2 and the mounting washer 3;
the longitudinal slit or the like is provided in the shaft portion of the extension rod 8 to change the volume of the quantitative chamber.
As aerosol type products including the above quantitative spray mechanism, there are products for various uses such as detergents, cleaning agents, antiperspirants, insect repellents, insecticides, pharmaceuticals, quasi-pharmaceuticals, cosmetics, laundry powders, and the like.
As the contents contained in the aerosol container, various forms of contents such as liquid, cream, and gel are used. The components to be blended in the contents include, for example, powders, oil components, alcohols, surfactants, high molecular compounds, active ingredients for various applications, 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, magnesium chloride, silica, zinc oxide, titanium oxide, zeolite, nylon powder, barium sulfate, cellulose, a mixture thereof, and the like are used.
As the oil component, silicone oil such as dimethylpolysiloxane, ester oil such as isopropyl myristate, oils and fats such as palm oil, eucalyptus oil, camellia oil, olive oil, jojoba oil, hydrocarbon oil such as liquid paraffin, and fatty acids such as myristic acid, palmitic acid, stearic acid, linoleic acid, linolenic acid are used.
Examples of the alcohols include monohydric lower alcohols such as ethanol, monohydric higher alcohols such as lauryl alcohol and cetyl alcohol, and polyhydric alcohols such as ethylene glycol, 1, 3-butylene glycol and glycerin.
As the surfactant, an anionic surfactant such as sodium lauryl sulfate, a nonionic surfactant such as polyoxyethylene alkyl ether or polyglycerin fatty acid ester, an amphoteric surfactant such as lauryl dimethyl glycine betaine, or a cationic surfactant such as alkyltrimethylammonium chloride is used.
As the high molecular compound, hydroxyethyl cellulose, methyl cellulose, gelatin, starch, casein, xanthan gum, carboxyvinyl polymer, or the like is used.
As the active ingredients corresponding to the respective uses, dyes such as p-phenylenediamine and aminophenol, oxidizing agents such as hydrogen peroxide water, setting agents such as acrylic resins and waxes, ultraviolet absorbers such as 2-ethylhexyl p-methoxycinnamate, vitamins such as retinol and dl- α -tocopherol, moisturizers such as hyaluronic acid, anti-inflammatory analgesics such as methyl salicylate and indomethacin, sterilizing agents such as sodium benzoate and cresol, pest repellents such as pyrethroid and diethyltoluamide, antiperspirants such as zinc p-phenolsulfonate, fresheners such as camphor and menthol, antiasthmatics such as ephedrine and epinephrine, sweeteners such as sucralose and aspartame, adhesives or coatings such as epoxy resins and polyurethanes, dyes such as p-phenylenediamine and aminophenol, oxidizing agents such as hydrogen peroxide water, fire extinguishing agents such as ammonium dihydrogen phosphate and sodium/potassium hydrogen carbonate.
In addition to the above contents, a suspending agent, an emulsifier, an antioxidant, a metal ion chelating agent, and the like can be used.
As the gas for spraying aerosol products, liquefied gases such as liquefied petroleum gas, dimethyl ether, and hydrofluoroolefin are used.
Description of the reference numerals
1: container body
2: mounting cup
3: mounting washer
4: main shell
4 a: partition part
4 b: suspended cylindrical part
4 c: longitudinal rib-shaped part
4 d: upward step part
5: main pole
5 a: cross hole part (discharge valve)
5 b: content passage section
5 c: lower end part
5 d: downward step part
6: rod gasket (discharge valve)
7: additional housing
7 a: annular step part
7 b: partition part
7 c: straight inner peripheral surface
7 d: longitudinal rib-shaped part
7 e: suspended cylindrical part
8: extension rod
8 a: concave part of top surface
8 b: large diameter part
8 c: slit part
8 d: lower end (inflow valve)
8 e: downward step part
9: spring
10: ring sealing member (inflow valve)
11: bushing
12: dip tube
A: downstream side quantitative chamber
B: upstream side quantitative chamber
(FIG. 4)
13: additional housing
13 a: annular step part
13 b: partition part
13 c: straight inner peripheral surface
13 d: small inner diameter part
13 e: suspended cylindrical part
C: upstream side quantitative chamber
Claims (3)
1. A constant-volume spraying mechanism for spraying the contents of an expanded constant-volume chamber extending in the longitudinal direction of an aerosol container into an external space region by the action of an inflow valve and an outflow valve,
the enlarged dosing chamber comprises:
a main housing provided with the outflow valve; and
an additional casing for expanding the fixed-amount chamber, having a straight inner peripheral surface in the longitudinal direction, having a straight cylindrical shape as a whole, fitted into the main casing, and provided with the inflow valve,
the outflow valve includes:
a main lever disposed in the main casing and having a hole for passing the content and a content passage portion connected to the hole on the downstream side; and
an elastically deformable downstream-side annular valve member mounted at an upper end side portion of the main housing in abutment with an outer peripheral surface of the main lever, serving to open and close between the hole portion and the main housing,
the inflow valve includes:
an extension rod disposed at the additional housing in an integrated state in which the extension rod is in contact with the main rod; and
an elastically deformable upstream-side annular valve member mounted at a lower end-side portion of the additional housing and functioning to open and close between the additional housing and a lower end-side outer surface of the extension rod,
the additional housing includes an elastic member provided therein, the elastic member biasing the extension rod upward to abut against the main rod, and the main rod is also indirectly biased upward from the extension rod by the abutting action.
2. The quantitative injection mechanism according to claim 1, wherein an abutting portion of the main rod and the extension rod is formed with a convex portion at one side thereof, and is formed with a concave portion that receives and holds the convex portion at the other side thereof.
3. An aerosol product comprising a quantitative spray mechanism of the aerosol container according to claim 1 or 2, and containing a gas for spraying and contents.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2018/032343 WO2020044532A1 (en) | 2018-08-31 | 2018-08-31 | Metered spraying mechanism for aerosol container, and aerosol product provided with metered spraying mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112469641A true CN112469641A (en) | 2021-03-09 |
| CN112469641B CN112469641B (en) | 2023-08-08 |
Family
ID=69642888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201880095945.2A Active CN112469641B (en) | 2018-08-31 | 2018-08-31 | Quantitative spraying mechanism of aerosol container and aerosol product with quantitative spraying mechanism |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP7144079B2 (en) |
| CN (1) | CN112469641B (en) |
| WO (1) | WO2020044532A1 (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5423122B1 (en) * | 1970-10-07 | 1979-08-11 | ||
| EP0694484A1 (en) * | 1994-07-28 | 1996-01-31 | Coster Tecnologie Speciali S.P.A. | Metering or continuously discharging valve for pressurized fluids |
| JP2002059039A (en) * | 2000-08-22 | 2002-02-26 | Mitani Valve Co Ltd | Aerosol mechanism |
| JP2007186257A (en) * | 2005-12-12 | 2007-07-26 | Mitani Valve Co Ltd | Quantitative valve device and aerosol type sprayer |
| JP2007532337A (en) * | 2004-04-19 | 2007-11-15 | イリノイ トゥール ワークス インコーポレイティド | Metering valve provided in the can fuel cell |
| JP2007533558A (en) * | 2003-10-07 | 2007-11-22 | バルワー エス．アー．エス． | Valve and dosing device having such a valve |
| JP2008308197A (en) * | 2007-06-14 | 2008-12-25 | Mitani Valve Co Ltd | Metering chamber adding unit, metering valve mechanism with the metering chamber adding unit, and aerosol type product with the metering valve mechanism |
| JP2010047290A (en) * | 2008-08-22 | 2010-03-04 | Mitani Valve Co Ltd | Constant volume jetting mechanism and aerosol product with the mechanism |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5423122B2 (en) * | 2009-04-23 | 2014-02-19 | 新日鐵住金株式会社 | Heat treatment method and heat treatment equipment for ERW steel pipe made of dual phase steel for pipe expansion used as oil well pipe |
-
2018
- 2018-08-31 JP JP2020539981A patent/JP7144079B2/en active Active
- 2018-08-31 CN CN201880095945.2A patent/CN112469641B/en active Active
- 2018-08-31 WO PCT/JP2018/032343 patent/WO2020044532A1/en active Application Filing
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5423122B1 (en) * | 1970-10-07 | 1979-08-11 | ||
| EP0694484A1 (en) * | 1994-07-28 | 1996-01-31 | Coster Tecnologie Speciali S.P.A. | Metering or continuously discharging valve for pressurized fluids |
| JP2002059039A (en) * | 2000-08-22 | 2002-02-26 | Mitani Valve Co Ltd | Aerosol mechanism |
| JP2007533558A (en) * | 2003-10-07 | 2007-11-22 | バルワー エス．アー．エス． | Valve and dosing device having such a valve |
| JP2007532337A (en) * | 2004-04-19 | 2007-11-15 | イリノイ トゥール ワークス インコーポレイティド | Metering valve provided in the can fuel cell |
| JP2007186257A (en) * | 2005-12-12 | 2007-07-26 | Mitani Valve Co Ltd | Quantitative valve device and aerosol type sprayer |
| JP2008308197A (en) * | 2007-06-14 | 2008-12-25 | Mitani Valve Co Ltd | Metering chamber adding unit, metering valve mechanism with the metering chamber adding unit, and aerosol type product with the metering valve mechanism |
| JP2010047290A (en) * | 2008-08-22 | 2010-03-04 | Mitani Valve Co Ltd | Constant volume jetting mechanism and aerosol product with the mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2020044532A1 (en) | 2021-08-10 |
| WO2020044532A1 (en) | 2020-03-05 |
| CN112469641B (en) | 2023-08-08 |
| JP7144079B2 (en) | 2022-09-29 |
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