WO2017115522A1

WO2017115522A1 - Stem for aerosol product, content discharge mechanism comprising same, and aerosol product provided with content discharge mechanism

Info

Publication number: WO2017115522A1
Application number: PCT/JP2016/080328
Authority: WO
Inventors: 鈴木　正人; 大島　保夫; 松本　伸
Original assignee: 株式会社三谷バルブ
Priority date: 2015-12-28
Filing date: 2016-10-13
Publication date: 2017-07-06

Abstract

The present invention minimizes deformation of a stem gasket in an aerosol-type content discharge mechanism, reliably holds the stationary mode position of a stem, and maintains a sealing effect between the stem and the stem gasket. As illustrated for example in figures 1-5, a stem 1 is provided with: a stem main body 1a comprising a shoulderless cylindrical outer circumferential surface that is for preventing stem dislodgement from a stem gasket 4 serving as a valve action partner, a stem hole 1c for content inflow formed in the cylindrical outer circumferential surface, and a stem main body passage 1b communicating with the stem hole 1c; a stem outer annular section 1d that is set apart from the exterior of the stem main body 1a and that determines the stationary mode position of the stem by action resulting from contact with an annular protruding lower surface of the stem gasket 4; and a plurality of connecting parts 1e formed at intervals in the circumferential direction between the stem main body 1a and the stem outer annular section 1d. By configuring the stem 1 as a metal stem having a small diameter, strength is maintained while reducing sliding resistance with the stem gasket 4.

Description

Stem for aerosol type product, content release mechanism comprising this stem, and aerosol type product equipped with this content release mechanism

The present invention relates to a stem shape for discharging contents contained in an aerosol-actuated type container main body to an external space region, and a contents discharge mechanism for a related configuration of the stem and the stem gasket, housing, etc. About.

In particular, the lower edge portion of the center opening of the stem gasket (hereinafter referred to as the “stem gasket edge portion” if necessary) is constantly in close contact with the stem shoulder portion of the stationary mode and spreads outward over time. Regarding losing.

<Preventing profiling deformation of the stem gasket edge portion, a good initial sealing state between the outer peripheral surface of the stem and the stem gasket is maintained even after many uses of the contents discharge mechanism.

In addition, the surface shape such as powder falling on the outer surface side of the stem (such as a connecting portion between the stem body and the outer ring portion of the stem described later) and the inner surface side of the housing (such as the inner bottom surface of the housing described later) falls. It relates to preventing the accumulation of contents on this surface portion.

This prevention of content accumulation prevents the volume of the internal space of the housing from decreasing due to the frequent use of the content release mechanism and clogging of the accumulated content that has peeled off into the passage area.

In the present specification, the longitudinal direction of the stem, that is, the vertical direction of each figure is referred to as “vertical” and “vertical”, and the direction substantially orthogonal thereto is referred to as “horizontal”.

The present applicant has proposed a stem having a shape that is intended to suppress deformation of the lower edge portion of the central opening of the stem gasket to the outside due to the continuous close contact with the stem shoulder portion in the stationary mode ( Patent Document 1).

Here, the radial expansion of the stem shoulder portion is reduced to reduce the follow-up deformation of the stem gasket edge portion, and the stem gasket is integrated with the stem and abuts against the radial intermediate portion of the lower surface portion of the stem gasket in the stationary mode. It is disclosed that an annular member for holding the ring is provided.

That is, the radial expansion of the stem shoulder portion is suppressed to reduce the follow-up deformation of the stem gasket edge portion, and the stem gasket is supported by an annular member integrated with the stem in the stationary mode, thereby preventing the stem from coming off, Positioning with the stem stopped.

Thus, the proposed stem shape has the advantages of reducing the follow-up deformation of the stem gasket edge portion and specifying and holding the stem stationary mode position.

JP 2005-239218 A

As a result of further examination regarding the stem disclosed in the above publication and the content release mechanism using the stem,
・ Straight shank with a cylindrical outer surface that is flush with the upper and lower sides without a shoulder for stem removal prevention (stem body without shoulder)
-Annular part (stem outer annular part) that is set outside the straight shank part to determine the stationary mode position of the stem
By adopting a stem configuration consisting of
Prevents the occurrence of profiling deformation of the stem gasket edge portion based on the continuous stationary mode contact state with the stem shoulder portion, and the sealing action between the stem outer peripheral surface is maintained in the initial state, and It was verified that the stem in the stationary mode is surely set at a predetermined position.

The object of the present invention based on this verification is to complete the sealing action between the outer periphery of the straight shank-shaped stem body without the shoulder portion and the stem gasket and the stem positioning action in the stationary mode.

In addition, the connecting part between the stem body without the shoulder part and the outer ring part of the stem and the inner surface part of the housing are set to a surface shape in which the contents such as powder riding on the connecting part are easily slipped off. The purpose is to prevent accumulation of contents inside.

Also, it is intended to ensure the scraping action of the stem gasket edge portion without copying deformation to the contents such as powder adhering to the outer peripheral surface of the stem when returning from the operation mode to the stationary mode.

In addition, by forming the stem (at least the stem main body) with a small diameter from metal, the contact area between the outer peripheral surface of the stem main body and the stem gasket is reduced while ensuring the stem strength, and the sealing action is assured. The purpose is to improve stem operability by reducing sliding resistance as the area decreases.

It is another object of the present invention to make effective use of the internal space of the housing by forming the inner peripheral surface of the housing with a so-called curved surface without a rib-like portion so that a large-diameter stem body can be disposed.

The present invention solves the above problems as follows.
(1) In an aerosol-type product stem (for example, a stem 1 described later) that exhibits a valve action for releasing contents contained in a container body (for example, a container body 8 described later) to the external space,
A cylindrical outer peripheral surface without a shoulder portion for preventing stem detachment from a stem gasket (for example, a later-described stem gasket 4), and a stem hole portion for inflowing contents formed on the cylindrical outer peripheral surface (for example, later described) Stem hole portion 1c), and a stem body (for example, stem body 1a described later) having a content passage portion (for example, stem body passage portion 1b described later), and
A stem outer annular portion (for example, a stem outer annular portion 1d to be described later) that is spaced apart from the stem main body and determines the stationary mode position of the stem by abutting action with the annular exposed lower surface of the stem gasket;
A plurality of connecting portions (for example, connecting portions 1e described later) formed in a circumferentially jumping manner between the stem body and the stem outer annular portion,
The stem of the configuration aspect is used.
(2) In (1) above,
The connecting portion is
The upper surface is formed of a circumferentially inclined shape for dropping contents (for example, a triangular roof shape 1e described later),
The stem of the configuration aspect is used.
(3) In the above (1) or (2),
The stem body is
Formed of metal,
The stem of the configuration aspect is used.
(4) the stems of (1), (2) and (3) above;
A cylindrical housing (for example,

housings

2 and 3 to be described later) into which the contents of the container main body flow into while the stem is accommodated;
A stem gasket (for example, a stem gasket 4 described later) that is held in the housing in a manner in close contact with the outer peripheral surface of the stem and exhibits a valve action with the stem main body.
The content release mechanism of the configuration aspect is used.
(5) In (4) above,
The housing is
Having a mortar-shaped bottom surface (for example, a mortar-shaped bottom surface 3d described later),
The content release mechanism of the configuration aspect is used.
(6) In (5) above,
The mortar bottom is
Formed between adjacent bottom rib-like portions (for example, bottom-surface radial rib-like portions 3c described later) which are receiving portions of an elastic member that biases the stem to the position of the operation mode,
The content release mechanism of the configuration aspect is used.
(7) In the above (4), (5), (6),
The housing is
A housing inner peripheral surface without a rib-like portion (for example, an inner peripheral surface of a housing upper portion 3a described later),
The stem outer annular portion is
The outer peripheral surface and the inner peripheral surface of the housing are arranged at a narrow interval,
The content release mechanism of the configuration aspect is used.

Each of the stem having such a structure, a content release mechanism including the stem, and an aerosol type product provided with the content release mechanism is an object of the present invention.

The present invention takes the above problem solving means,
(11) The sealing action between the outer peripheral surface of the stem body and the stem gasket and the stem positioning action in the stationary mode can be fully achieved.
(12) It is possible to prevent the accumulation of contents in the connection part between the stem body and the outer ring part of the stem and inside the housing,
(13) When returning to the stationary mode, it is possible to ensure the scraping action of the stem gasket edge part against the contents such as powder adhering to the outer peripheral surface of the stem body,
(14) While ensuring the stem strength by reducing the diameter of the metal stem, it is possible to improve the stem operability by reducing the sliding resistance between the outer peripheral surface of the stem body and the stem gasket,
(15) The effective utilization of the housing internal space can be reduced.

It is explanatory drawing which shows the shape perspective state of the stem of this invention. It is explanatory drawing which shows the stationary mode of the content discharge | release mechanism which consists of the stem (small diameter stem main body) of FIG. 1, and the housing which formed the inner peripheral surface with a rib-shaped part, and the horizontal inner bottom face. It is explanatory drawing which shows the operation mode of the content discharge | release mechanism of FIG. It is explanatory drawing which shows the stationary mode of the content discharge | release mechanism which consists of the stem (large-diameter stem main body) of FIG. 1, and the housing which formed the inner peripheral surface without a rib-shaped part, and a mortar-shaped inner bottom face. It is explanatory drawing which shows the operation mode of the content discharge | release mechanism of FIG.

The form for implementing this invention is demonstrated using FIG. 1 thru | or FIG.
In the following embodiments, powder is used as an example of the contents released into the external space for the convenience of explanation.

The components of the reference numbers with alphabets (for example, the stem main body 1a) used in each figure indicate that they are part of the components (for example, the stem 1) of the numeral portions of the reference numbers in principle.

In these figures,
1 is a powder passage area and a stem that operates as a valve action part,
1a is a straight shank shape having a cylindrical outer peripheral surface which is in a vertical direction so that a portion in close contact with the inner peripheral surface of the central opening of the stem gasket 4 which will be described later is at least in the stationary mode. 2 and 3 are small diameter, and FIG. 4 and FIG. 5 are large diameter)
1b is a stem body passage for passing the contents,
1c is a stem hole portion that allows the stem body passage portion 1b to communicate with the internal space of the

housings

2 and 3 described later when in the operation mode;
1d is integral with the stem body 1a, and in the stationary mode, an annular outer ring portion for supporting the annular exposed lower surface portion of the later-described stem gasket 4 at its radially spaced position.
1e is set in a circumferentially jumping manner between the stem body 1a and the stem outer annular portion 1b, and its upper surface is composed of a pair of stem circumferential flat slopes extending downward as an example of a powder dropping slope, and , A total of four connecting portions of a triangular roof shape as a circumferential slope shape that receives an upper end portion of a coil spring 5 described later on the lower end side thereof,
Respectively.

Also,
2 is engaged and held by a mounting cup 6 which will be described later, and powder discharged from the container body 8 which will be described later to the external space region is stored and passed, and the lower portion of the stem body 1a and the stem outer annular portion 1d are Housing (FIGS. 2 and 3),
2a is a large-diameter cylindrical housing upper part,
2b is a lower diameter cylindrical housing lower part,
2c is a total of six L-shaped rib-shaped portions formed in a continuous manner from the inner peripheral surface longitudinal direction to the bottom surface radial direction in the circumferential jump of the housing upper portion 2a;
2d is a horizontal bottom surface formed between adjacent L-shaped rib portions 2c,
2e is a vertical hole that allows the housing upper portion 2a and the housing lower portion 2b to communicate with each other;
2f is a well-known vapor tap with a horizontal hole shape,
Respectively.

Also,
3 is engaged and held by a mounting cup 6 which will be described later, and the powder discharged from the container body 8 which will be described later to the external space is stored and passed, and the lower portion of the stem body 1a and the stem outer annular portion 1d are Housing (FIGS. 4 and 5),
3a is a large-diameter cylindrical housing upper part,
3b is a small-diameter cylindrical housing lower part,
Reference numeral 3c denotes a bottom surface radial rib shape having a total of six right-angled triangles formed in a manner that the upper surface is horizontal and the inner end surface is perpendicular to the bottom surface of the housing upper portion 3a and receives the lower end portion of a coil spring 5 described later on the upper end side. Department,
3d is a mortar-shaped bottom surface having an inwardly-decreasing tapered shape formed between adjacent bottom surface radial rib portions 3c,
3e is a vertical hole for communicating the housing upper part 3a and the housing lower part 3b,
3f is a well-known vapor tap in the shape of a horizontal hole,
Respectively.

Also,
4 is sandwiched between a mounting cup 2 and a housing 3 which will be described later, and the stem hole 1c is selectively set to the closed state of the stem initial position and the open state of the stem lowering position, that is, between the stem 1 An annular stem gasket that exhibits valve action at
Is shown.

The closed state of the stem hole 1c in the stationary mode is a shut-off state from the housing internal space region, and the open state in the operation mode is a communication state with the housing internal space region.

Also,
5 is disposed between the connecting portion 1e of the stem 1, the lower upper surface portion of the L-shaped rib-shaped portion 2c of the

housings

2 and 3, and the upper surface portion of the bottom-surface radial rib-shaped portion 3c. Coil spring biasing
6 is a mounting cup attached to the opening end side of the container body 8 to be described later.
7 is a dip tube for powder inflow attached to the

lower housing parts

2b and 3b.
8 is a container body containing powder and gas for injection,
Respectively.

Also,
S1 is an inner powder flow that passes upward between the adjacent connecting portions 1e in the housing 2 of FIG. 3 having the L-shaped rib-shaped portion 2c.
S2 is also an outer powder flow that passes upward between adjacent L-shaped rib portions 2c in the housing 2,
S3 is the main inner powder flow passing upward between the adjacent connecting portions 1e in the housing 3 of FIG. 5 in which the L-shaped rib-shaped portion 2c is omitted.
S4 is also a small amount of powder flow that passes upward between the outer peripheral surface of the stem outer annular portion 1d and the inner peripheral surface of the housing 3 in the housing 3,
Respectively.

The powder cross-sectional area of the small amount outer powder flow S4 in FIG. 5 is much smaller than that of the main inner powder flow S3.

The powder flows S1 to S4 are, of course, continuous with the flow moving from the container body 8 to the

vertical hole portions

2e and 3e of the

housings

2 and 3 via the dip tube 7.

Among the above components, the

housings

2 and 3 and the dip tube 7 are made of plastic, and are made of, for example, polypropylene, polyethylene, polyacetal, nylon, polybutylene terephthalate, or the like.

The stem gasket 4 is made of rubber or plastic, and the mounting cup 6 is made of metal. The stem 1, the coil spring 5 and the container body 8 are made of plastic or metal. The metal stem 1 is made of, for example, aluminum, brass, stainless steel, or the like.

The features of the stem and content release mechanism shown are
(21) Stem 1
A stem body 1a in which the outer peripheral surface portion in close contact with the inner peripheral surface of the central opening of the stem gasket 4 in the stationary mode is set in a vertical shank shape in the vertical direction;
A stem outer annular portion 1d that abuts and holds an intermediate portion of the annular exposed lower surface of the stem gasket 4 that is radially spaced from the stem body 1a in the stationary mode;
Set to a shape consisting of
(22) The connecting portion 1e between the stem body 1a and the stem outer annular portion 1d is formed into a triangular roof shape inclined in the stem circumferential direction,
(23) The housing 3 is provided with a mortar-shaped bottom surface 3d formed between the bottom surface radial direction rib-shaped portion 3c and its neighbors without providing the L-shaped rib-shaped portion 2c of the housing 2 on the inner peripheral surface thereof. ing,
And so on.

By setting the shapes (21) to (23) above for the stem 1 and the housing 3,
(31) Prevents the occurrence of profiling deformation of the stem gasket edge portion based on the stationary mode contact state with the conventional stem shoulder portion, thereby bringing the sealing action between the stem gasket 4 and the outer peripheral surface of the stem 1 to the initial state. Can hold,
(32) Since this sealing action is maintained, the powder adhering to the outer peripheral surface of the stem when returning from the operation mode to the stationary mode is surely scraped off at the stem gasket edge part,
(33) The stationary mode stem 1 urged upward by the elastic action of the coil spring 5 is securely set at a predetermined position so as not to come out of the stem gasket 4.
(34) Dropping the powder that tends to accumulate on the connecting part 1e or the bottom of the housing to prevent the contents from accumulating inside the housing,
(35) In the case of the housing upper part 3a having an inner peripheral surface at a short distance from the stem outer annular part 1d without forming the inner peripheral rib-like part, the space between the vertical hole part 3e and the stem hole part 1c is substantially Exclusively the main inner powder flow S3, reducing the turbulence of the powder flow,
(36) When both the housing

upper parts

2a and 3a have the same outer diameter, the inner diameter of each of the housings 3 in which the inner peripheral surface rib-shaped part is not formed is larger than that of the housing 2, and the stem body is larger by that amount. The outer diameter of 1a and the stem outer annular portion 1d can be set wide.

The stem 1 in FIG. 1 includes a stem body 1a whose outer peripheral surface portion is set in a vertical shank shape in the vertical direction, and an outer stem annular portion 1d that supports a radially intermediate portion of the annular exposed lower surface of the stem gasket 4 in the stationary mode. It is made up of.

The stem main body 1a and the stem outer annular portion 1d are integrally formed in a form through four connecting portions 1e.

Since the upper surface portion of the connecting portion 1e spreads downward in the circumferential direction and is set to a triangular roof slope shape for dropping powder, the powder to be attached to the upper portion of the connecting portion 1e slips on the upper slope. Fall from the adjacent opening. That is, the powder is difficult to deposit on the upper slope portion of the connecting portion 1e.

The housing 3 used in the contents discharge mechanism of FIGS. 4 and 5 is also provided with a mortar-shaped bottom surface 3d, and the powder to be attached to the bottom surface portion is also from the mortar-shaped slope as in the case of the connecting portion 1e. It falls to the vertical hole portion 3e and hardly deposits on the mortar-shaped bottom surface 3d.

The falling powder from the mortar-shaped bottom surface 3d is collected in the container body 1 through the vertical hole 3e of the housing 3 and the dip tube 7.

In the stationary mode of FIGS. 2 and 4,
(41) The stem 1 is biased upward by the elastic force of the coil spring 5,
(42) The upper end portion of the stem outer annular portion 1d abuts and holds the annular exposed lower surface of the stem gasket 4,
(43) The stem body passage portion 1b does not communicate with the internal space area of the

housings

2 and 3, and the powder of the container body 8 is set not to be discharged into the external space area.

In the operation mode of FIGS. 3 and 5, that is, in a state where the stem 1 is moved down against the elastic force of the coil spring 5 in accordance with the user's content release operation,
(51) The stem body passage portion 1b communicates with the internal space of the

housings

2 and 3,
(52) The stem outer annular portion 1d is spaced downward from the annular exposed lower surface of the stem gasket 4,
(53) In the case of the housing 2 provided with the L-shaped rib-shaped portion 2c of FIG. 3, the inner powder flow S1 of the passage portion provided with the coil spring 5 and the outer powder flow S2 having a larger channel cross-sectional area than this Produces
(54) In the case of the housing 3 provided with the bottom surface radial rib 3c of FIG. 5, a main inner powder flow S3 and a small amount of outer powder flow S4 are generated which have a significant difference in flow rate.

The merging portion of the inner powder flow S1 and the outer powder flow S2, and the merging portion of the main inner powder flow S3 and the small amount outer powder flow S4 are respectively known contents via the stem hole portion 1c and the stem body passage portion 1b. It is injected from the discharge port to the external space area.

The stem 1 that has lost its driving force in the downward direction with the end of the content discharge operation moves up due to the elastic action of the coil spring 5, and the stem outer annular portion 1d abuts against the annular exposed lower surface of the stem gasket 4. Stop in a reliable state.

That is, the stem 1 having the straight shank-shaped stem body 1a returns to the stationary mode in a state where it never comes out of the stem gasket 4.

Note that, when the diameter of the outer periphery of the stem body 1a is reduced, the contact area between the outer peripheral surface of the stem body 1a and the inner peripheral surface of the central opening of the stem gasket 4 is reduced, so that the sealing action can be improved.

¡By reducing the contact area, the sliding resistance between the stem body 1a and the stem gasket 4 is also reduced. For this reason, the rebound elastic force of the coil spring 5 that returns the stem 1 to the upper side can be set small, and the stem 1 can be moved downward with a lighter operating force.

When the stem main body 1a or the entire stem 1 is set to a metal small diameter portion, the strength of the stem 1 can be increased while reducing the sliding resistance as described above. When setting to this metal small diameter part, the whole metal stem or only the stem main body 1a is made of metal, and the rest is made of a plastic stem.

Of course, the present invention is not limited to the illustrated embodiment, for example,
(61) The arrangement relationship between the stem hole portion 1c and the stem gasket 4 is set so that the inflow side opening of the stem hole portion is closed by the stem gasket in the stationary mode of FIGS.
(62) Set the upper surface of the connecting part to an arbitrary shape such as one side flat slope (one roof), curved slope,
(63) The longitudinal rib-shaped portion (a part of the L-shaped rib-shaped portion 2c) on the inner peripheral surface of the housing 2 is set to a rib-shaped portion in an arbitrary direction other than the longitudinal direction.
(64) Use a stem 1 of a type that tilts in response to the content discharge operation.
(65) Instead of the coil spring 5, various elastic members such as a leaf spring are used.
You may do it.

Aerosol-type products with the above-mentioned contents release mechanism include cleaning agents, cleaning agents, antiperspirants, repellents (insecticides), adhesives, paints, foods, pharmaceuticals, quasi drugs, coolants, muscles There are flame retardants, cosmetics, hair products, hair dyes, laundry glue, fire extinguishers.

The contents stored in the container body can be in various forms such as liquid, cream, gel, etc., and the components blended in the contents include, for example, powders, oil components, Examples include alcohols, surfactants, polymer compounds, active ingredients according to each application, and water.

As the powder, metal salt powder, inorganic powder, resin powder, etc. are 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.

As alcohols, monohydric lower alcohols such as ethanol, monohydric higher alcohols such as lauryl alcohol, polyhydric alcohols such as ethylene glycol, glycerin, and 1,3-butylene glycol are used.

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, antibacterial agents such as sodium benzoate and cresol, insect repellents such as pyrethroid 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.

In addition to the above contents, suspending agents, UV absorbers, emulsifiers, humectants, antioxidants, sequestering agents, etc. are also used.

Compressed gas such as carbon dioxide, nitrogen gas, compressed air, oxygen gas, rare gas, and mixed gas thereof, and liquefied gas such as liquefied petroleum gas, dimethyl ether, and fluorocarbon are used as the contents injection gas.

1: Stem 1a: Stem body 1b: Stem body passage portion 1c: Stem hole portion 1d: Stem outer ring portion 1e: Connection portion

2: Housing (Figs. 2 and 3)
2a: Large-diameter cylindrical housing upper part 2b: Small-diameter cylindrical housing lower part 2c: L-shaped rib part 2d: Horizontal bottom face 2e: Vertical hole part 2f: Vapor tap

3: Housing (Figs. 4 and 5)
3a: Large-diameter cylindrical housing upper portion 3b: Small-diameter cylindrical housing lower portion 3c: Bottom radial rib-shaped portion 3d: Mortar-shaped bottom surface 3e: Vertical hole portion 3f: Vapor tap

4: Stem gasket 5: Coil spring 6: Mounting cup 7: Dip tube 8: Container body

S1: Inner powder flow (Figure 3)
S2: Outer powder flow (Figure 3)
S3: Main inner powder flow (Figure 5)
S4: Small amount of external powder flow (Figure 5)

Claims

In a stem for an aerosol type product that exhibits a valve action for discharging the contents contained in the container body to the external space area,
A cylindrical outer peripheral surface without a shoulder portion for preventing a stem from being removed from a stem gasket of a valve acting partner, a stem hole portion for inflow of contents formed in the cylindrical outer peripheral surface, and a content passage portion following this Stem body,
An outer ring portion of the stem that is set apart from the outside of the stem body and determines the stationary mode position of the stem by an abutting action with the annular exposed lower surface of the stem gasket;
A plurality of connecting portions formed in a circumferentially jumping manner between the stem body and the stem outer annular portion,
A stem for aerosol type products.
The connecting portion is
The upper surface is a circumferentially inclined shape for dropping contents,
The stem for an aerosol type product according to claim 1.
The stem body is
Made of metal,
The stem for an aerosol type product according to claim 1 or 2, wherein the stem is used.
A stem according to any one of claims 1 to 3,
A cylindrical housing in which the stem is accommodated and the contents of the container body flow, and
A stem gasket that is held in the housing in close contact with the outer peripheral surface of the stem and exhibits a valve action with the stem body.
A content release mechanism characterized by that.
The housing is
Having a mortar-shaped bottom,
The content discharge | release mechanism of Claim 4 characterized by the above-mentioned.
The mortar bottom is
It is formed between the adjacent bottom ribs that are receiving portions of the elastic member that biases the stem to the position of the operation mode.
The content release mechanism according to claim 5, wherein:
The housing is
It has a housing inner peripheral surface without a rib-shaped part,
The stem outer annular portion is
The outer peripheral surface and the housing inner peripheral surface are arranged in a state of a narrow interval,
The content discharge | release mechanism in any one of Claims 4 thru | or 6 characterized by the above-mentioned.
An aerosol type product comprising the content discharge mechanism according to any one of claims 4 to 7 and containing a gas for injection and the content.