KR20200015705A - Actuator for aerosol container - Google Patents

Abstract

The actuator 1 for an aerosol container of this invention is provided with the holder 4 which has the spherical rolling element 3 and the recessed part 41 which hold | maintains it electrically. At the bottom of the holder 4, a stem connecting portion 42 having a derivation path 7 of the contents of the aerosol container 2 is provided and fitted to the stem 23, and the derivation path 7 is a recess. It communicates with the blowing hole 77 formed in 41. As shown in FIG. A plurality of spherical ridges 81 and 82 are provided on the inner surface near the bottom of the recess 41 and the inner surface along the opening edge, respectively, spaced apart from each other at a raised height. In the derivation path 7, a middle orifice for reducing the ejection pressure of the contents is provided. As a result, the rolling element 3 is constantly and lightly rolled, the contents are stably supplied at a constant supply amount, and the protruding of the rolling element 3 is also prevented.

Description

Actuator for aerosol container

The present invention relates to an actuator for a roll-on aerosol container.

BACKGROUND ART A roll-on skin external product for applying a skin external agent such as a body odor inhibitor or a sunscreen to a skin through a spherical rolling body is commercially available. According to this kind of external skin product, the contents can be applied accurately to the desired area without dirtying the hands, and at the same time, a massage effect by pressing the skin can be obtained. The roll-on type application tool used for this kind of external skin product can be broadly divided into two types: non-aerosol type and aerosol type.

In the non-aerosol-type application tool, a holder for holding the spherical rolling element in a rotatable manner is fitted into the opening of the container body, and the contents are supplied to the outer surface of the rolling element by the inclination or shaking of the container body. . The contents can be applied to the target site by pressing the rolling element against the skin and rolling it. Therefore, in the non-aerosol type application tool, a means for preventing the clearance between the rolling element and the holder at least when using fire is required in order to prevent the contents from being exposed to the outside air.

On the other hand, an aerosol-type application tool is an actuator having a spherical rolling element and a holder for holding the rolling element in a rotatable manner. The aerosol container is attached to the stem protruding from the aerosol container. When the actuator pushes the stem, the aerosol valve is opened, and the contents filled in the aerosol container are ejected from the stem, and are attached to the outer surface of the rolling element through the ejection hole provided in the holder. By rolling the rolling element against the skin and rolling it, the contents can be applied to the target site.

According to the aerosol-type application tool provided with such an actuator, since the contents are prevented from being ejected by the valve of the aerosol container, the gap between the rolling element and the holder at least when not in use, like the non-aerosol-type application tool. There is no need to stop it. As a result, the degree of freedom in designing the actuator is increased. However, even for such an actuator, for example, the rolling property of the rolling element is further improved, the ejection amount of the contents is kept constant to prevent the liquid from flowing out, or the rolling element is prevented from popping out due to the momentum of ejection. It is required to improve the problems such as, etc., and the actuators that can satisfy them sufficiently are not presently in practical use.

For example, Patent Document 1 proposes an aerosol container which solves the problem that the disposal after use is easy, a comfortable massage effect can be obtained, and unexpected liquid dripping is prevented while improving durability of the component. It is. The aerosol container has a holder for holding the spherical rolling element (ball) so as to be electrically rolled in a state where it is exposed, and a stem protruding from the pressure-resistant container, and the rolling element is elastically cooperated with the holder. A supporting base is attached. The pedestal is provided with an elastic partition wall that separates the stem from the rolling element, except for the region of the ejection hole at the tip of the stem. The elastic partition wall has a cross-sectional arch-shaped support surface which is convex upward, and a plurality of protrusions are formed integrally with the elastic partition wall on the upper surface. According to such a structure, since the elastic bulkhead elastically supports the rolling element by its support surface and protrusion, the vertical movement of the rolling element is largely secured, a comfortable massage effect can be obtained, and unexpected liquid flows. You can also get the effect of preventing falling.

Japanese Patent Application Laid-Open No. 2001-240163

In the aerosol container disclosed in the patent document 1, the rolling element is accommodated between the holder and the pedestal, and is held in such a state that it can be moved largely up and down by elastic deformation of the elastic partition wall provided in the pedestal. That is, the gap between the inner surface of the holder and the outer surface of the rolling element changes in various ways according to the pressed state of the rolling element. Therefore, excessive contents are excessively supplied in the widened gap, and contents overflow from the opening edge of the holder, or when the rolling element is strongly pushed in, the elastic bulkhead is greatly deformed, and the gap around the ejection hole at the tip of the stem is blocked and the contents are blocked. There is a possibility that a variation occurs in the supply amount of the contents, such as insufficient supply. Moreover, unevenness arises in the biasing force received from an elastic partition by the bias of the rolling element in a holder, and the rolling property of a rolling element may change irregularly. If the force applied by the elastic bulkhead is too strong, the rolling element may pop out of the holder.

Further, since the pedestal is molded separately from the holder by a resin material that is more elastically deformable than the holder, it becomes difficult to seal the joining position of the holder and the pedestal in a liquid-tight manner. There is also a risk of liquid dripping from the gap.

SUMMARY OF THE INVENTION The present invention has been made in view of these problems, and an aerosol container capable of constantly rolling the rolling element lightly with a constant texture and stably supplying the contents at a constant supply amount and also protruding protruding from the rolling element. It is an object of the present invention to provide an actuator.

In order to achieve the above object, the actuator for aerosol container of the present invention is capable of rolling the rolling element having a spherical outer surface and the rolling element in a recessed portion having a spherical inner surface with a portion thereof exposed. And a holder for holding in a stable manner, the contents being mounted in a pressurized aerosol container, and the contents ejected by pushing the stem protruding from the aerosol container are supplied into the recesses of the holder to provide an outer surface of the rolling element. An actuator for a roll-on aerosol container configured to be attached to a stem, comprising: a stem connecting portion having a drawing passage of the contents at the bottom of the holder, wherein the stem connecting portion is fitted to the stem and at the same time; Is communicated with a blowing hole formed in the recess, the inner surface near the bottom of the recess and the misalignment. On the inner surface along the opening edge of the neck, a plurality of spherical bumps are adopted so as to be spaced apart from each other at the height of the bumps.

According to this basic configuration, the inner surface of the recess and the rolling element are formed by the action of spherical bumps, each of which is provided at the inner surface near the bottom in the recess of the holder and the inner surface along the edge of the opening, each of which has the same elevation height. The gap with the outer surface of is always and constantly held throughout the entire recess. As a result, the ejection amount of the contents is stabilized, and the adhesion amount of the contents to the outer surface of the rolling element is equalized. In addition, since spherical bumps are extremely hard to elastically deform from the shape in the pressing direction, even when the rolling element is strongly pushed in, the rolling element embolizes the ejection hole in the recess to eject the contents. It can be prevented from becoming difficult.

Since the spherical bumps and the outer surface of the rolling element are in point contact between the smooth convex curved surfaces, the rolling of the rolling element is not disturbed by this, and the rolling element always runs smoothly with constant lightness. Since the spherical bumps do not have directivity, there is no variation in the electrical properties due to the rolling direction. Moreover, the spherical bump provided along the opening edge of a recess also has an effect which prevents a rolling element protruding from the opening surface of a recess.

In this invention, it is preferable that the spherical bump formed in the vicinity of the bottom part of a recessed part is arrange | positioned at equal intervals on the virtual circle centering on the said injection hole. Or it is preferable to arrange | position at equal intervals on the virtual circle centered on the intersection of the axis line which orthogonally crosses the opening surface of the said recessed part, and the inner surface of the said recessed part.

In addition, the aerosol container actuator of the present invention is connected to the large-diameter hole of the inner diameter that matches the outer diameter of the stem and the large-diameter hole in the lead-out passage through an end portion. Medium diameter hole that is thinner than the hole diameter of the stem, tapered hole portion connected to the middle diameter hole via an end portion, and the shaft diameter end of the tapered hole portion at the same diameter as the shaft diameter end. An additional constitution is adopted in which a small diameter hole to be connected is provided, and the small diameter hole is opened into the concave portion to form a blowing hole.

That is, this structure provides the middle orifice for pressure_reduction | reduced_pressure in the pull-out path | route which connects the stem which protruded to the aerosol container, and the blowing hole formed in the holder. By the action of the middle orifice, the momentum when the contents are ejected from the stem is weakened, and the protruding of the rolling element can be prevented more reliably.

Moreover, this invention adopts the additional structure that the whole inner surface of the said recessed part in the said holder is integrally formed so that it may be liquid-tightly continuous without a clearance except the said blowing hole. This can prevent the contents from leaking from the inside of the recess into the actuator.

According to the aerosol container actuator of the present invention configured as described above, a plurality of spherical bumps provided on the inner surface of the recess of the holder holding the rolling element always maintains the clearance between the inner surface of the recess and the outer surface of the rolling element. Since it is held constantly, the ejection amount of the contents is stabilized, and the amount of adhesion of the contents to the outer surface of the rolling element is equalized. In addition, the rolling property of the rolling element is improved by the point contact between the spherical bumps and the outer surface of the rolling element. Further, the spherical bumps provided along the opening edges of the recesses prevent the rolling elements from protruding from the openings of the recesses.

Moreover, since the actuator for aerosol containers of this invention is comprised so that the middle orifice which reduces the ejection pressure of the content may be formed in the guideway which connects the stem which protruded to the aerosol container, and the ejection hole formed in the holder, The protruding rolling element becomes more difficult to occur.

1 is an external perspective view of an actuator for an aerosol container according to a first embodiment of the present invention.
2 is a longitudinal sectional view of the actuator for the aerosol container.
3 is a partially enlarged cross-sectional view of the main portion of FIG. 2.
4 is a cross-sectional view showing the configuration of the lead-out path by further expanding the main portion of FIG.
5 is a perspective view showing the inner surface of the holder after removing the rolling element of the actuator for the aerosol container.
Fig. 6 is a cross-sectional view AA of the actuator for the aerosol container.
It is AA sectional drawing which shows the modification which concerns on the arrangement | positioning form of spherical bump in the actuator for said aerosol containers.
FIG. 8 is a sectional view taken along line BB of the actuator for the aerosol container of FIG. 7. FIG.
It is an external appearance perspective view of the actuator for aerosol containers which concerns on 2nd Embodiment of this invention.
10 is a longitudinal sectional view of the actuator for the aerosol container.
11 is a partially enlarged cross-sectional view of the main portion of FIG. 10.
12 is a perspective view showing the inner surface of the holder after removing the rolling element of the actuator for the aerosol container.
It is CC sectional drawing of the actuator for aerosol containers.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described, referring drawings.

(1st embodiment)

1 to 6 show an actuator for an aerosol container (hereinafter, simply referred to as an “actuator”) according to the first embodiment of the present invention. This actuator 1 is attached to the upper part of the aerosol container 2 in which the contents were pressurized and filled. In addition, in the following description, when showing the positional relationship and the direction of a site | part and a member, it shall be based on the state shown in FIG. 1 which made the aerosol container 2 stand up, and specifies a vertical direction and a horizontal direction.

As shown in FIG. 2, the aerosol container 2 is clinched and sealed to the upper portion of the container body 21. A housing (not shown) incorporating an aerosol valve is fixed to the inner central portion of the mounting cup 22, and a normal stem 23 is inserted into the housing, so that the upper portion of the stem 23 is an aerosol container. The upper part of (2) is protruded in the state of being added. When the stem 23 is pushed into the aerosol container 2, the aerosol valve opens, and the contents filled in the aerosol container 2 are ejected from the top opening of the stem 23.

In addition, since this invention does not make the main structure of the pressurization mechanism of the aerosol container 2, the detailed structure of an aerosol valve, etc., they can be implemented by combining suitably conventionally well-known technical means. As the contents to be filled in the aerosol container 2, for example, a body odor inhibitor, a sunscreen agent, an anti-inflammatory analgesic agent, and the like are assumed. However, the present invention does not particularly limit the type and composition of the contents.

An exemplary actuator 1 includes a rolling element 3 having a spherical smooth outer surface, a holder 4 for holding the rolling element 3 freely in a rolling manner, and the holder 4 with the rolling element 3. It consists of the four members of the shoulder cover 5 which hold | maintains up and down according to the press of, and the cap 6 which covers the upper part of the shoulder cover 5, and covers the holder 4 and the rolling elements 3.

In the holder 4, a recess 41 having a spherical smooth inner surface is formed so as to open upward. The rolling member 3 is press-fitted into this recessed portion 41 in which the entire inner surface of the recessed portion 41 is integrally formed so as to be liquid-tightly continuous without a gap except for the ejection hole 77 described later. In the state in which a part of the rolling element 3 is exposed upward, and is hold | maintained so that rotation is possible.

At the bottom of the holder 4, a short cylindrical clearance insert for stabilizing the up and down movement of the holder 4 by pressing the stem connecting portion 42 having the contents delivery path 7 and the rolling element 3 is provided. I) A cylinder 43 is provided. The detailed structure of the derivation furnace 7 is mentioned later.

Moreover, at the side part of the holder 4, the engagement protrusion 44 for fixing the holder 4 so that it may not leave | deviate with respect to the shoulder cover 5 is downward from four places in the circumferential direction of the holder 4 It is installed to protrude.

On the other hand, the shoulder cover 5 is short-cylindrical guide cylinder part 51 which is inserted into the clearance insertion cylinder part 43 of the holder 4 from the outside, and guides the up-and-down movement of the holder 4, and surrounds the outer side. The inner circumferential wall portion 52 and the outer circumferential wall portion 53 surrounding the outer side thereof are provided. Then, the lower edge of the inner circumferential wall portion 52 is fitted to the outer circumferential edge of the mounting cup 22, so that the shoulder cover 5 is fixed to the aerosol container 2.

An engaging groove 54 is formed between the inner circumferential wall portion 52 and the outer circumferential wall portion 53, and the engaging projection 44 of the holder 4 is inserted into the engaging groove 54. It is held so as to be able to move up and down, and not to escape easily. In this state, the stem connecting portion 42 of the holder 4 is fitted to the stem 23 so that the stem 23 is pushed in as the rolling element 3 and the holder 4 are pushed down.

The main part of this invention exists in the shape of the draw path 7 provided in the stem connection part 42 of the holder 4, and the spherical bump 8 provided in several places of the inner surface of the recessed part 41. As shown in FIG. Details thereof are shown in FIGS. 3 to 6.

As enlarged in FIG. 3 and FIG. 4, in the derivation path 7, the large diameter hole 71 and the stem 23 of the inner diameter conforming to the outer diameter of the stem 23 in order from the bottom to the top, and the stem 23. The middle diameter hole portion 73 which is thinner than the hole diameter of the stem 23 connected to the large diameter hole portion 71 via the flat end portion 72 perpendicular to the axial direction of the end portion ( A tapered hole portion 75 having a diameter reduced upwardly connected via 74 and a small diameter hole portion 76 connected to the shaft diameter end (upper end) of the tapered hole portion 75 at the same diameter as the shaft diameter end. Is provided, and the small-diameter hole 76 is opened into the recess 41 to form a blowing hole 77.

In this way, the ejection passage 7 is formed so as to reduce the diameter in stages, whereby the ejection pressure of the contents ejected from the stem 23 is reduced. The two end portions 72, 74 provided so as to be perpendicular to the jetting direction act as a wall on which jets collide, and contribute effectively to the jetting pressure reduction. As a specific diameter of the small diameter hole part 76 which such an effect is easy to obtain, it is 0.2-2.0 mm, Especially preferably, it is about 0.3-1.0 mm.

A plurality of spherical bumps 81 and 82 are provided in the concave portion 41 communicated with the draw passage 7 on the inner surface near the bottom and the inner surface along the opening edge, respectively.

Each spherical bump 81 and 82 has a circular front face and has a thin hemispherical (lens shape) smooth raised face. As a specific dimension, diameter is 0.5-5.0 mm, Especially preferably, it is about 1.0-2.5 mm, and ridge height is 0.1-1.5 mm, Especially preferably, it is about 0.2-0.8 mm. It is preferable that all the spherical ridges 81 and 82 provided with two or more are adjusted to the height of those ridges, but are not necessarily so about diameter.

The spherical bumps 81 and 82 are integrally molded with the holder 4 by the same material as the synthetic resin material constituting the holder 4.

Spherical ridges 81 provided along the opening edge of the recess 41 are arranged, for example, about six so as to have substantially equal intervals in the circumferential direction of the opening edge.

Moreover, about three spherical ridges 82 provided in the vicinity of the bottom part of the recessed part are substantially equally spaced along the imaginary circle centering on the blowing hole 77 formed in the lowest part. It is arranged. The size of the virtual circle corresponding to "near the bottom" has a diffusion angle θ of 4 to 20 degrees from the vertical axis passing through the centripet 45 and the jet hole 77 of the recess 41, particularly preferably 5 It is the size which becomes about -15 degrees.

In this way, the plurality of spherical ridges 81 and 82 provided on the inner surface of the recess 41 of the holder 4 have a gap between the inner surface of the recess 41 and the outer surface of the rolling element 3. The function of holding is constantly at all times throughout the inside of the recessed part 41. FIG. As the size of the gap is held constant, the contents ejected from the ejection hole 77 pass through the spherical bumps 81 and 82 and spread evenly on the inner surface of the recess 41, thereby rolling the rolling element 3. It is attached to the outer surface of) appropriately. In addition, since the spherical ridges 81 and 82 have a shape which is extremely hard to deform in the pressing direction, even when the rolling member 3 is strongly pushed in, the rolling member 3 is recessed. The ejection hole 77 in the () can be embolized to prevent the contents from being difficult to eject.

In addition, since the spherical ridges 81 and 82 and the outer surface of the rolling element 3 are in point contact between the smooth convex curved surfaces, the rolling of the rolling element 3 is not disturbed by this. 3) It always runs smoothly with constant lightness. Since the spherical ridges 81 and 82 have no directivity, the motor-driven inequality in the transmission direction does not occur. Moreover, the spherical ridge 81 provided along the opening edge of the recessed part 41 also acts to prevent the rolling element 3 from protruding from the opening surface of the recessed part 41. FIG.

Regarding the arrangement of the spherical ridges 81 and 82, it is preferable to arrange three to nine pieces in the circumferential direction in each of the vicinity of the bottom of the recess 41 and the opening edge side. In the case of two or less, the stability of the rolling element 3 will be lost, and rolling property will deteriorate easily. On the other hand, when the number is 10 or more, the ejected contents are likely to be disturbed when they spread along the inner surface of the recess 41.

Moreover, it is preferable that spherical ridges 81 and 82 are arrange | positioned at substantially equal intervals in the vicinity of the bottom part of the recessed part 41, and an opening edge side, respectively. Although there may be some nonuniformity in each space | interval, it is preferable to fall at least more than a fixed distance from each other so that the content may not be disturbed.

7-8 shows the modification which concerns on the arrangement | positioning aspect of the spherical ridge 82 provided in the vicinity of the bottom part of the recessed part 41. As shown in FIG. Three spherical bumps 82 are arranged along the inner and outer double virtual circles centering on the ejection hole 77, respectively. The size of the inner virtual circle is such that the diffusion angle θ1 from the vertical axis passing through the center 45 and the jet hole 77 of the recess 41 is about 6 degrees, and the size of the outer virtual circle is The diffusion angle θ2 from the vertical axis is about 15 degrees. Although the three spherical bumps are arranged at equal intervals so as to form a center angle of 120 degrees when viewed from the top with the spout hole 77 as the center, the three spherical bumps on the inside and the outside are the spout holes ( 77) The arrangement directions centering on 77) are shifted by 60 degrees when viewed from the top. In addition, although the elevation height of the spherical ridge 82 is the same on both inside and outside, the diameter is larger on the outside than the inside.

Such an arrangement is advantageous for dispersing the concentration of pressure in the vicinity of the bottom of the recess 41 by pressing the rolling element 3. Moreover, by making the diameter of the spherical ridge 82 of the inner side close to the ejection hole 77 smaller than that of the outer side, it becomes difficult to obstruct when the content ejected from the ejection hole 77 spreads.

(2nd embodiment)

9-13 shows the actuator 1 which concerns on 2nd Embodiment of this invention. Since this actuator 1 is attached to the same aerosol container 2 as what was shown in 1st Embodiment mentioned above, description of the aerosol container 2 is abbreviate | omitted. In addition, the same code | symbol is attached | subjected to the component which has a function or an action common to 1st Embodiment mentioned above, and the description is simplified.

Similarly to the first embodiment described above, the actuator 1 includes a rolling element 3 having a spherical outer surface and a rolling element 3 in a recess 41 having a spherical inner surface. Although the holder 4 which hold | maintains so that rotation is possible in this exposed state, and the shoulder cover 5 which hold | maintains the holder 4 so that up-and-down movement according to the press of the rolling element 3 is provided, the recess of the holder 4 is provided. It differs from 1st Embodiment in that the part 41 opens obliquely upward. Specifically, the opening surface of the concave portion 41 of the holder 4 is about 10 to 80 degrees, particularly preferably about 20 to 45 degrees, inclined with respect to the horizontal surface in the state where the aerosol container 2 is upright. It is formed to

The holder 4 adheres the shaft portion 47 of the hinge arm 46 protruding from the outside thereof to the hinge receiving portion 55 provided inside the inner circumferential wall portion 52 of the shoulder cover 5. In this way, it is held so as to swing in the vertical direction. In this state, the stem connecting portion 42 provided at the bottom of the holder 4 is fitted to the stem 23 of the aerosol container 2, and the stem (3) is pushed down as the rolling element 3 and the holder 4 are pushed down. 23) is pushed in. The detailed structure of the draw path 7 provided in the stem connection part 42 is the same as that of 1st Embodiment (FIG. 4).

The holder cover 9 is attached to the upper portion of the shoulder cover 5 so as to surround the outside of the holder 4 which opens at an angle. Moreover, the cap 6 is covered by the holder cover 9, and the exposed part of the rolling element 3 is covered.

Also in this actuator 1, although several spherical bumps 81 and 82 are provided in the inner surface of the recessed part 41, since the recessed part 41 of the holder 4 opens diagonally upwards, The arrangement of the spherical ridges 81 and 82 is somewhat different from that in the first embodiment. The shape and dimensions of the spherical ridges 81 and 82 are common to the first embodiment.

At the opening edge of the oblique concave portion 41, for example, about six spherical bumps 81 are disposed at substantially equal intervals along the opening edge. In addition, the spherical ridge 82 provided in the vicinity of the bottom part of the recessed part 41 is not orthogonal to the opening surface of the recessed part 41, but is an imaginary circle centering on the blowing hole 77 formed in the lowest part. Along the imaginary circle centered on the intersection 48 between the axis passing through the centripet 45 of the recess 41 and the inner surface of the recess 41, for example, three or so are arranged at approximately equal intervals. It is. Even in this form, the size of the virtual circle is 4 to 20 degrees, particularly preferably 5 to 15 degrees, in which the diffusion angle θ from the axis passing through the center 45 of the recessed portion 41 and the intersection 48 is passed. Is the size.

Also in such an embodiment, since the clearance between the inner surface of the recess 41 of the holder 4 and the outer surface of the rolling element 3 is held constantly, the ejection amount of the contents is stable, and the rolling element 3 The spread to the outer surface of the) becomes good. In addition, the rolling property of the rolling element 3 is improved, and the rolling element 3 can also be prevented from protruding from the opening face of the recess 41.

As mentioned above, although two types of embodiment of this invention were illustrated, the technical scope of this invention should not be interpreted limitedly by the illustrated embodiment, It is to be interpreted conceptually based on description of a claim. In the practice of the present invention, the shape and structure of the member / part not specifically identified in the claims, the positional relationship, the joining form, and the like are appropriately modified within the scope not departing from the gist of the present invention. can do.

1: Actuator
2: aerosol container
21: container body
22: mounting cup
23: stem
3: rolling element
4: holder
41: recess
42: stem connection part
43: clearance insertion tube
44: engaging spin
45: centripetal
46: hinge arm
47: shaft
48: intersection
5: shoulder cover
51: guide tube
52: inner peripheral wall portion
53: outer peripheral wall portion
54: Reach Home
55: hinge receiving part
6: cap
7: to draw
71: large diameter hole
72: end
73: medium diameter hole
74: end
75: taper hole
76: small diameter hole
77: squirt hole
81: spherical bumps
82: spherical bumps
9: holder cover

Claims (5)

Rolling element having a spherical outer surface,
A holder for holding the rolling element in a concave portion having a spherical inner surface so as to be rotatable in a state where a part thereof is exposed;
The contents are mounted in a pressurized aerosol container,
In the actuator for a roll-on aerosol container configured to be supplied to the concave portion of the holder by the injection of the stem protruding to the aerosol container is attached to the outer surface of the rolling element,
At the bottom of the holder, a stem connecting portion having a derivation path of the contents is provided,
While the stem connection is fitted to the stem,
The discharge passage communicates with a blowing hole formed in the recess;
An actuator for an aerosol container, wherein a plurality of spherical bumps are provided on the inner surface near the bottom of the recess and on the inner surface along the opening edge of the recess to be spaced apart from each other at an elevated height. The method of claim 1,
In the derivation route,
A large diameter hole having an inner diameter that matches the outer diameter of the stem,
A medium diameter hole that is thinner than the hole diameter of the stem connected to the large diameter hole via an end;
A tapered hole portion connected to the middle diameter hole portion through an end portion;
The small diameter hole part connected to the shaft diameter end of the said taper hole part by the same diameter as the said shaft diameter end is provided,
An actuator for an aerosol container, characterized in that the small-diameter hole is opened into the recess to be a jet hole. The method according to claim 1 or 2,
An spherical bump formed in the vicinity of the bottom of the concave portion is arranged at equal intervals along an imaginary circle centered on the ejection hole. The method according to claim 1 or 2,
The spherical bumps formed near the bottom of the concave portion are arranged at equal intervals along an imaginary circle centered on the intersection of the axis passing through the center of the concave portion and orthogonal to the opening surface of the concave portion and the inner surface of the concave portion. Actuator for aerosol container, characterized in that. The method according to any one of claims 1 to 4,
And the holder is integrally molded such that the entire inner surface of the concave portion is liquid-tightly continuous without a gap except for the ejection hole.

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