JP2020138792A - Atomization spray - Google Patents

Abstract

To provide an atomization spray with which variation of an atomization amount is hard to be generated.SOLUTION: There are provided a main cylinder 14 suspended from an attachment cylindrical member 2 for attachment to a container body neck part, and an operation member 30 where a pushing-down head 50 is attached to a plunger body 32 standing from inside the main cylinder 14 in a vertically movable manner. An auxiliary cylinder 60 having a larger inside diameter than that of the main cylinder 14 is provided on a lower side of the pushing-down head 50. A lower piston 36 capable of sliding an interior of the main cylinder 14 is formed below the plunger body 32, and an upper piston 44 capable of sliding an interior of the auxiliary cylinder 60 is formed on an upper end side thereof, respectively. A residual pressure releasing recess part 15 is recessed on an inner face of the main cylinder 14. A falling piece d is present with the upper piston 44 in between, and a restriction projecting part 66 for restricting a falling amount of the upper piston 44 is provided on the inner face below the auxiliary cylinder 60.SELECTED DRAWING: Figure 1

Description

The present invention relates to a spray spray.

As a so-called pressure-accumulation spray spray
A mounting cylinder member to be attached to the mouth and neck of the container body,
A spray body including a main cylinder hanging downward from the mounting cylinder member and having a first valve body formed in the lower portion of the main cylinder,
It is provided with an operating member that is provided so as to be movable up and down with respect to the spray body and has a push-down head attached to an upper portion of a plunger body that stands up from the inside of the main cylinder.
A sub-cylinder having an inner diameter larger than that of the main cylinder is provided below the push-down head, a lower piston slidable in the main cylinder is provided in the lower part of the plunger body, and a lower piston slidable in the main cylinder is provided in the upper part of the plunger body. Each upper piston that can slide inside is formed,
It is known that a first valve body is provided in the lower portion of the main cylinder, and a second valve body is provided between the upper end of the plunger body and the push-down head (Patent Document 1).
A recess for relieving residual pressure located near the lower limit of the sliding range of the lower piston is recessed on the inner surface of the main cylinder.

Japanese Patent Application Laid-Open No. 10-211453

The spray spray of Patent Document 1 may cause a variation in the amount of liquid sprayed depending on how the pressing head is pressed down.
That is, when the user pushes down the push-down head vigorously, the plunger body is pushed down by the push-down head and the internal pressure of the sub-cylinder rises sharply, so that the downward movement speed of the plunger body becomes high. As a result, the plunger body moves significantly downward and quickly reaches the residual pressure relief recess. Therefore, as compared with the case where the push-down head is pushed down slowly, the timing at which the internal pressure of the main cylinder decreases is earlier, and the spray amount is relatively reduced.

An object of the present invention is to provide a spray spray in which the amount of spray is less likely to vary depending on how the pressing head is pressed down.

The first means is a mounting cylinder member 2 for mounting the container body on the mouth and neck, and
A spray main body 10 including a main cylinder 14 hanging downward from the mounting cylinder member 2 and having a first valve body V1 formed in a lower portion of the main cylinder 14.
A push-down head that is provided so as to be urged upward with respect to the spray body 10 and can move up and down, and is vertically attached to a plunger body 32 that stands up from the inside of the main cylinder 14 and an upper portion of the plunger body 32. It is provided with an operating member 30 in which a second valve body V2 is formed between the 50 and the 50.
A sub-cylinder 60 having an inner diameter larger than that of the main cylinder 14 is provided below the push-down head 50.
A lower piston 36 slidable in the main cylinder 14 is formed in the lower part of the plunger body 32, and an upper piston 44 slidable in the sub cylinder 60 is formed in the upper part of the plunger body 32.
In addition, in a spray spray in which a residual pressure relief recess 15 is recessed on the inner surface of the main cylinder 14.
On the inner surface of the lower portion of the sub-cylinder 60, a regulation convex portion 66 is provided so as to have a lowering allowance d of the upper piston 44 between the upper piston 44 and the upper piston 44 to regulate the lowering amount of the upper piston 44.

In this means, as shown in FIG. 3, when the push-down head 50 is pushed down, the plunger body 32 is lowered with respect to the push-down head 50 due to the diameter difference between the main cylinder 14 and the sub-cylinder 60 of the push-down head 50. Then, in the spray spray in which the second valve body V2 opens, as shown in FIG. 1 (A), it is proposed to provide a regulation convex portion 66 that regulates the lowering amount of the upper piston 44 on the lower inner surface of the sub-cylinder 60.
As shown in FIG. 1 (B), the regulation convex portion 66 is arranged so as to have a lowering allowance d of the upper piston 44 with the upper piston 44 sliding on the sub-cylinder 60.
Therefore, even if the user pushes down the push-down head 50 vigorously as described above, the lower piston 36 of the plunger body 32 is the lower part of the main cylinder 14 because the movement amount of the plunger body 32 is restricted. The timing of reaching the residual pressure relief recess 15 is not accelerated, and the spray amount does not decrease. This avoids the inconvenience of variations in the amount of spray, and enables stable spraying.

The second means has the first means, and the sub-cylinder 60 has a cylinder peripheral wall 62 on the inner surface on which the upper piston 44 can be slidably contacted, and the regulation convex portion 66 has the cylinder peripheral wall 62. It is formed integrally with.

In this means, as shown in FIGS. 1, 4, and 6, the sub-cylinder 60 has a cylinder peripheral wall 62 on the inner surface on which the upper piston 44 can be slidably contacted, and the regulation convex portion 66 is the cylinder. It is integrally formed with the peripheral wall 62. By doing so, it is possible to prevent the number of members from increasing and to manufacture the product at a low cost.

The third means has a second means, and a plurality of regulation convex portions 66 are provided intermittently in the circumferential direction of the sub-cylinder 60.

In this means, as shown in FIG. 2B or FIG. 5B of the present application, it is proposed to intermittently provide a plurality of regulation convex portions 66 in the circumferential direction of the sub-cylinder 60. According to this configuration, it is possible to easily set (assemble) the upper piston 44 when disposing it in the sub-cylinder 60.

The fourth means has any of the first to third means, and the regulation convex portion 66 is connected to the cylinder peripheral wall 62 via a deformable movable portion 64.

The present means proposes that the regulation convex portion 66 is connected to the cylinder peripheral wall 62 via a deformable movable portion 64. According to this configuration, the regulation convex portion 66 can be projected inward by performing a simple post-processing such as pushing the movable portion 64. The work of inserting (setting) the upper piston 44 into the sub-cylinder 60 can be performed after the post-processing is performed.

The fifth means has a second means, and an engaging recess 71 with which the lower end of the upper piston 44 can be engaged is provided around the lower portion of the inner surface of the sub-cylinder 60, and the engaging recess is provided. The lower edge of the groove 71 is a regulated convex portion 66 projecting inward from the groove bottom 71a of the engaging concave groove 71.

In this means, as shown in FIG. 6, an engaging concave groove 71 with which the lower end of the upper piston 44 can be engaged is provided around the lower portion of the inner surface of the sub-cylinder 60, and the lower side of the engaging concave groove 71 is provided. It is proposed that the edge is a regulation convex portion 66 projecting inward from the groove bottom 71a of the engaging concave groove 71.
According to this configuration, the amount of descent of the upper piston 44 can be reliably regulated.

According to the invention according to the first means, it is possible to prevent variations in the spray amount of the spray spray.
According to the invention according to the second means, the spray spray can be produced at low cost.
According to the invention according to the third means, it is possible to easily set (assemble) the upper piston 44 when it is arranged in the sub-cylinder 60.
According to the invention according to the fourth means, it is possible to design a large inward intrusion length of the regulation convex portion 66.
According to the invention according to the fifth means, the amount of descent of the upper piston 44 can be reliably regulated.

It is a figure which shows the structure of the spray spray which concerns on 1st Embodiment of this invention, the figure (A) is a half cross-sectional view seen from the side, and the figure (B) is an enlarged view of a main part. It is a figure which shows the structure of the main member of the spray spray of FIG. 1, FIG. (A) is a vertical sectional view seen from the side, FIG. 1 (B) is a bottom view, and FIG. It is a partially enlarged view of A). FIG. 1 is an explanatory view of the operation of the spray spray in FIG. 1, in which FIG. 1A is a stage in which the plunger body is pushed by the push-down head and the plunger body starts to descend, and FIG. Fig. (C) shows the stage in the middle of the spraying process, Fig. (D) shows the stage where the lower end of the plunger body reaches the residual pressure relief recess, and Fig. (E) shows the stage where spraying stopped. Shown. It is a figure which shows the structure of the spray spray which concerns on 2nd Embodiment of this invention, the figure (A) is a half cross-sectional view seen from the side, and the figure (B) is an enlarged view of a main part. 4A and 4B are views showing the configuration of the main members of the spray spray, FIG. 4A is a vertical sectional view seen from the side, FIG. 4B is a bottom view, and FIG. 4C is a diagram (C). It is a partially enlarged view of A). It is a figure which shows the structure of the spray spray which concerns on 3rd Embodiment of this invention, the figure (A) is a half cross-sectional view seen from the side, and the figure (B) is an enlarged view of a main part. It is a figure which shows the structure of the main member of the spray spray of FIG. 6, FIG. 6A is a vertical sectional view seen from the side, and FIG. 6B is a bottom view.

1 to 3 show a spray spray according to the first embodiment of the present invention. This spray spray is composed of a mounting cylinder member 2, a spray main body 10, and an operating member 30.
Each of these members can be formed of, for example, a synthetic resin material or a metal.
First, the basic configuration of the spray spray of the present invention will be described.

The mounting cylinder member 2 has a mounting cylinder portion 4 for fitting (screwing in the illustrated example) the container body 100 to the mouth and neck portion 102, and the inward flange 6 is inserted from the upper end of the mounting cylinder portion 4. It stands out.
A guide tube portion 8 for guiding the raising and lowering of the push-down head 50, which will be described later, is erected from an appropriate position (inner peripheral portion in the illustrated example) of the inward flange 6. The upper end of the illustrated guide tube portion 8 is formed in the small inner diameter portion 8a.
Further, in the illustrated example, the auxiliary cylinder portion 9 surrounding the guide cylinder portion 8 is erected from the upper surface of the inward flange 6. In addition, these configurations can be changed as appropriate.

As shown in FIG. 1A, the spray body 10 includes a cylinder member 12, a suction pipe 19, and a filling rod 22.
The cylinder member 12 hangs downward from the inward flange 6.
In the present embodiment, the cylinder member 12 has a vertically long main cylinder 14 and a collar portion 16 attached to the upper portion of the main cylinder 14. Then, the flange portion 16 is brought into contact with the lower surface of the inward flange 6 and assembled inside the mounting cylinder portion 4.
A packing P is attached to the lower surface of the collar portion 16.
The lower portion of the main cylinder 14 is formed on a tapered wall portion 14a having a small diameter at the lower end, and a mounting cylinder portion 18 hangs down from the tapered wall portion 14a.
A ball valve 20 is arranged in the tapered wall portion 14a, and as shown in FIG. 1A, the first valve body V1 is formed by the tapered wall portion 14a and the ball valve 20. The first valve body is provided as a check valve for switching communication and shutoff between the inside of the container body 100 and the inside of the main cylinder 14.
A first pressure relief hole 14b and a second pressure relief hole 14c located below the first pressure relief hole are opened in the upper part of the main cylinder 14.
Further, on the inner surface of the main cylinder 14, a recess 15 for residual pressure relief is provided so as to be located below the second pressure relief hole 14c. The residual pressure relief recess 15 is arranged near the lower limit position of the sliding range of the lower piston 36, which will be described later. The residual pressure relief recess 15 of the illustrated example is formed as a wide peripheral groove in the vertical direction, but the structure thereof can be appropriately changed.
The suction pipe 19 is fitted in the mounting cylinder portion 18.
The filling rod 22 extends from the lower half portion of the main cylinder 14 to the upper half portion on the upper side of the ball valve 20. In the illustrated example, a plurality of ribs 24 in the radial direction are attached to the lower portion of the filling rod 22, and these ribs 24 are fixed in the lower portion of the main cylinder 14.

The operating member 30 is composed of a plunger body 32 and a push-down head 50.

As shown in FIG. 1A, the plunger body 32 includes a first pressurizing plunger 34 and a second pressurizing plunger 40.
The first pressurizing plunger 34 has a vertical bar portion 34b extending upward from the upper end of the vertical cylinder portion 34a.
A lower piston 36 is formed at the lower end of the vertical cylinder portion 34a, and the lower piston 36 is slidably fitted in the main cylinder 14. The lower piston 36 is located between the residual pressure relief recess 15 and the second pressure relief hole 14c.
The upper portion of the filling rod 22 is loosely inserted in the vertical cylinder portion 34a. Further, a liquid passage hole 37 is formed in the upper portion of the vertical cylinder portion 34a.
The upper end of the vertical bar portion 34b is formed in the conical valve portion 38.
A coil spring 26 is interposed between the first pressurizing plunger 34 and the rib 24.
The second pressurizing plunger 40 has an upper piston 44 attached to the upper end of a vertically long tubular body 42, and is attached to the outer surface of the first pressurizing plunger 34.
In the illustrated example, the upper half portion is formed to have a smaller outer diameter than the lower half portion of the vertical cylinder portion 34a, and the lower portion of the cylinder body 42 of the second pressurizing plunger 40 is formed on the outer surface of the small outer diameter portion. It is fitted.
The lower end of the cylinder 42 is positioned above the first pressure relief hole 14b and is in sliding contact with the inner surface of the main cylinder 14.
Further, a liquid passage L communicating with the liquid passage hole 37 is formed between the tubular body 42 and the vertical rod portion 34b.
As shown in FIG. 1B, the upper piston 44 has a lower skirt-shaped portion 44a and an upper skirt-shaped portion 44b, and is slidably contacted with the inner surface of the sub-cylinder 60 described later.

In the present embodiment, the push-down head 50 is formed of a head base 52 and a head body 72, as shown in FIG. 1 (A).
The head base 52 has a sub-cylinder 60 suspended downward from the lower end of the connecting cylinder 54 having an upper and lower end opening via an outward flange-shaped top wall 56.
The sub-cylinder 60 is fitted inside the guide cylinder portion 8 so as to be able to move up and down.
An annular valve seat 55 for abutting the conical valve portion 38 is attached to the inner surface of the lower end portion of the connecting cylinder portion 54. As shown in FIG. 1A, the second valve body V2 is formed by the conical valve portion 38 and the annular valve seat 55. The second valve body is provided as a check valve for switching communication and shutoff between the inside of the sub-cylinder and the nozzle described later.
Further, in the illustrated example, the outer cylinder portion 58 is erected from the upper end of the flange-shaped top wall 56.
Further, in the illustrated example, as shown in FIG. 2B, a pair of semicircular hanging pieces 57 are hung from the flange-shaped top wall 56.
The head body 72 has a fitting cylinder portion 74 that hangs vertically from the lower surface, and a nozzle 76 that communicates with the inside of the fitting cylinder portion 74 is opened to the side surface. The fitting cylinder portion 74 is fitted to the outer surface of the connecting cylinder portion 54.
Further, the head body 72 has an outer peripheral wall 78. The outer peripheral wall 78 is provided so as to be inserted into the gap between the guide cylinder portion 8 and the auxiliary cylinder portion 9 by pushing down the push-down head 50.

In the above configuration, when the spray spray of the present invention is attached to the mouth neck 102 of the container body 100 and the push-down head 50 is pushed down, as shown by the arrow in FIG. 3A, the push-down head 50 is used. A pushing force f1 acts on the plunger body 32.
As a result, the pressure inside the main cylinder 14 and the sub-cylinder 60 rises equally, but since the sub-cylinder 60 has a larger inner diameter than the main cylinder 14, the sub-cylinder 60 is in sliding contact with the inner surface. The pressure receiving area (pressure receiving area) of the upper piston 44 is larger than the pressure receiving area of the lower piston 36 that is in sliding contact with the inner surface of the main cylinder 14. Therefore, as shown in FIG. 3B, the force f3 at which the hydraulic pressure in the sub-cylinder 60 pushes down the plunger body 32 is larger than the force f2 at which the hydraulic pressure in the main cylinder 14 pushes up the plunger body 32. ..
For this reason, the plunger body 32 also descends with respect to the push-down head 50, and the second valve body V2 opens.
As a result, the liquid in the main cylinder 14 passes through the inside of the liquid passage L and the sub cylinder 60 and is sprayed from the nozzle 76.
When the push-down head 50 is further pushed down, as shown in FIG. 3C, the upper piston 44 continues to be lowered while the second valve body V2 remains open.
When the lower piston 36 reaches the residual pressure relief recess 15, as shown in FIG. 3D, the pressure in the main cylinder 14 is transferred to the container through the residual pressure relief recess 15 and the second pressure relief hole 14c. It is discharged to the body 100 side. By doing so, the jet from the nozzle 76 is rapidly weakened.
FIG. 3E shows a state in which the jet from the nozzle 76 has stopped.

In the present invention, as shown in FIG. 1A, a regulation convex portion 66 that regulates the amount of descent of the upper piston 44 is provided on the inner surface of the lower portion of the cylinder peripheral wall 62 of the sub-cylinder 60.
As shown in FIG. 1 (B), the regulation convex portion 66 is arranged so as to have a lowering allowance d of the upper piston 44 with the upper piston 44.
This descending allowance d is designed in consideration of the amount of open movement of the second valve body V2 through which the content liquid can communicate, the size at which stable spraying can be obtained, and the like.
According to this configuration, even when the user pushes down the push-down head 50 vigorously, the lower skirt-shaped portion 44a is regulated at least as shown in FIGS. 3 (B) to 3 (C). It abuts on the convex portion 66 and is locked. Therefore, it is possible to prevent the plunger body 32 from descending significantly. Therefore, it is possible to prevent the inconvenience that the lower piston 36 reaches the residual pressure relief recess 15 earlier and the spray amount is greatly reduced as compared with the case where the push-down head 50 is pushed down at a normal speed.
In the illustrated example, the regulation convex portion 66 is formed integrally with the cylinder peripheral wall 62. This makes it possible to prevent the number of members from increasing.
Further, in the illustrated example, a plurality of regulation convex portions 66 are intermittently provided in the circumferential direction of the cylinder peripheral wall 62.

FIG. 2 shows a form of the head base 52 of the present embodiment at the time of molding.
In the present embodiment, as shown in FIG. 2A, the portion of the lower portion of the cylinder peripheral wall 62 of the sub-cylinder 60 to which the regulation convex portion 66 is attached can be easily pushed inward. It is formed in part 64.
In order to form the movable portion 64, at least a part of the upper end of the attachment portion of the regulation convex portion 66 and both ends in the circumferential direction is left as the easily deformable portion 67, and the separation line 70 is formed at other portions. Just do it.
In the present embodiment, as shown in FIG. 2B, a pair of slits 70a are bored as separation lines 70 at both ends of the attachment portion of the regulation convex portion 66 in the circumferential direction, and both slits are formed. The portion between the upper end portions may be the easily deformable portion 67.
In the present specification, the term "easily deformable portion" is used to mean a portion that is more easily deformed than other parts of the cylinder peripheral wall 62. The sub-cylinder 60 of the present invention is not limited to a structure in which only the easily deformable portion is deformed when the movable portion 64 is pushed in.
In the form at the time of molding, as shown in FIG. 2C, the movable portion 64 projects downward and outward so as to protrude outward from the contour of the cylinder peripheral wall 62. Then, by pushing the protruding portion inward as the operating portion 68, the side outer surface of the movable portion 64 and the outer peripheral surface of the lower portion of the cylinder peripheral wall 62 are formed to be flush with each other. However, these structures can be changed as appropriate.
In the illustrated example, as shown in FIG. 2A, the lower portion of the cylinder peripheral wall 62 is formed in the thick portion 63, and a pair of slits 70a are formed from the lower end to the upper end of the thick portion 63. ing. The thick portion between the two slits is the movable portion 64, and the boundary between the thick portion and the thin portion is the easily deformable portion 67. The upper surface of the thick portion 63 is engaged with the lower surface of the small inner diameter portion 8a of the guide cylinder portion 8 so that the push-down head 50 can be prevented from coming off.
The inwardly protruding length of the regulated convex portion 66 can be set by setting the upper piston 44 in the sub-cylinder 60 after performing post-processing for pushing the movable portion 64 inward. It is good to design within the range.
According to this configuration, the easily deformable portion 67 can be refracted and the regulated convex portion 66 can be projected inward by first performing post-processing for pushing the movable portion 64 inward. After that, when the upper piston 44 is pushed into the sub-cylinder 60, the upper piston 44 gets over the regulation convex portion 66 and is set in the sub-cylinder 60.
It is desirable that the refractive deformation of the easily deformable portion 67 is a plastic deformation, that is, it is inelastically bent from the state of FIG. 2 (C) to the state of FIG. 1 (C). In the case of plastic deformation, since the movable portion 64 can maintain the state after post-processing, pressure contact with the inner surface of the guide cylinder portion 8 is suppressed. Therefore, since the generation of frictional resistance between the movable portion 64 and the guide cylinder portion 8 is suppressed, it is possible to prevent the force for operating the push-down head 50 from becoming excessive. The easily deformable portion 67 can also be formed so as to be elastically deformable.
In order to enable the plastic deformation of the easily deformable portion 67, for example, the head base portion 52 may be formed of a material that is easily plastically deformed.
According to the present embodiment, the movable portion 64 is integrally formed with the remaining portion of the cylinder peripheral wall 62, and the regulated convex portion 66 is projected inward by a simple post-processing of pushing in to stabilize the spray amount. Can be made.
If the structure of the spray is significantly changed (for example, a member that regulates the operating amount of the valve member is added) in order to stabilize the spray amount of the spray spray, a major change in the manufacturing equipment is required. Can be avoided. That is, since one part of the ready-made spray spray is changed and post-processing for deforming (preferably plastically deforming) the part is performed, the conventional assembly line can be used as it is.

Hereinafter, the spray spray according to another embodiment of the present invention will be described. In these explanations, the description of the same configuration as that of the first embodiment will be omitted.

4 and 5 show a spray spray according to a second embodiment of the present invention. In the present embodiment, the movable portion 64 is formed so as to be tilted inward from the form at the time of molding.
FIG. 5 shows a form of the head base 52 of the present embodiment at the time of molding. In this embodiment, a slit 70a is formed at the side end portion of the movable portion 64 in the circumferential direction, leaving the portion of the side edge edge shown by the dotted line in FIG. 5 (C) as the easily deformable portion 67. A breaking line 70b connecting the upper ends of both slits 70a is formed at the upper end of the movable portion 64.
As shown in FIG. 5B, the two easily deformable portions 67 are formed in the shape of a short shaft rod and form a rotating shaft.
Further, on the lower side and the upper side of the movable portion 64, a lower inclined surface 69a and an upper inclined surface 69b as the operating portion 68 are formed by inclining upward and inward, respectively. A horizontal break line 70b connected to the remaining portion of the cylinder peripheral wall 62 is formed at the upper end of the upper inclined surface. However, instead of this horizontal break line, a horizontal slit may be formed.
Further, a downward corner portion is formed at the lower end of the lower inclined surface 69a.
According to this configuration, the upper inclined surface 69b may be pushed inward by a jig or the like prior to the work of setting the upper piston 44 in the sub-cylinder 60. Then, the easily deformable portion 67 is plastically twisted and deformed, so that the movable portion 64 is tilted inward and the regulated convex portion 66 is projected inward, as shown in FIG. 4 (B). it can.
In this inwardly protruding state, a preset lowering allowance d is provided between the regulation convex portion 66 and the lower end of the lower skirt-shaped portion 44a as shown in FIG. 4 (B).
According to this configuration, the inward protrusion length of the regulation convex portion 66 can be increased.
After that, the upper piston 44 may be inserted into the sub-cylinder 60.

6 and 7 show a spray spray according to a third embodiment of the present invention. In the present embodiment, instead of the movable portion 64, a regulated convex portion 66 that does not require a moving operation is disclosed.
In the present embodiment, as shown in FIG. 7, an engaging concave groove 71 is provided around the lower inner surface of the cylinder peripheral wall 62.
The engaging groove 71 is formed to be wide in the vertical direction, and as shown by an imaginary line in FIG. 6B, a vertical groove bottom is provided so that the lower skirt-shaped portion 44a of the upper piston 44 is hooked. It has a lower edge extending in the horizontal direction at a substantially right angle from the lower end of 71a, and this lower edge is used as a regulation convex portion 66. The regulation convex portion 66 may extend inward with respect to the groove bottom 71a.
The regulation convex portion 66 is formed on the lower edge of the engaging concave groove 71.
According to this configuration, even if the user pushes down the push-down head 50 vigorously, the upper piston 44 is caught in the engaging concave groove 71 and is hard to come off. Therefore, during normal operation, the upper piston 44 does not fall off from the sub-cylinder 60, and the spray amount can be reliably regulated.
Further, as shown in FIG. 7A, the upper edge continuous with the upper end of the groove bottom 71a is formed on a tapered slope 71b that inclines upward and inward. Therefore, the transition between the state in which the lower skirt-shaped portion 44a is housed in the engaging concave groove 71 and the state in which the lower skirt-shaped portion 44a is slidably contacted with the cylinder peripheral wall 62 above the engaging concave groove 71 is smoothly performed. ..
The engaging concave groove 71 can be formed by post-processing such as cutting. Cutting is an example, and other methods may be used.

It goes without saying that each of the above-described embodiments is merely a preferred embodiment of the present invention, and its configuration can be appropriately changed within the scope of the technical significance of the present invention.

2 ... Mounting cylinder member 4 ... Mounting cylinder 6 ... Inward flange 8 ... Guide cylinder
8a ... Small inner diameter part 9 ... Auxiliary cylinder part
10 ... Spray body 12 ... Cylinder member 14 ... Main cylinder 14a ... Tapered wall part 14b ... First pressure relief hole 14c ... Second pressure relief hole 15 ... Residual pressure relief recess 16 ... Collar part 18 ... Mounting cylinder part 19 ... Suction pipe 20 ... Ball valve 22 ... Rod material (filling rod)
24 ... Rib 26 ... Spring 30 ... Actuating member 32 ... Plunger body 34 ... First pressurizing plunger 34a ... Vertical cylinder part 34b ... Vertical rod part 36 ... Lower piston 37 ... Liquid flow hole 38 ... Conical valve part 40 ... Second Pressurized plunger 42 ... Cylinder 44 ... Upper piston 44a ... Lower skirt 44b ... Upper skirt 50 ... Pushing head 52 ... Head base 54 ... Connecting cylinder 55 ... Ring valve seat 56 ... Flange-shaped top wall 57 ... Hanging One piece 58 ... Outer cylinder part 60 ... Sub-cylinder 62 ... Cylinder peripheral wall 63 ... Thick part 64 ... Movable part 66 ... Regulatory convex part 67 ... Easy deformation part 68 ... Operation part 69a ... Lower inclined surface 69b ... Upper inclined surface 70 ... Separation line 70a ... Slit 70b ... Break line 71 ... Engagement concave groove 71a ... Groove bottom 71b ... Tapered slope 72 ... Head body 74 ... Fitting cylinder 76 ... Nozzle 78 ... Outer wall 100 ... Container body 102 ... Mouth neck d ... Descent allowance L ... Liquid passage P ... Packing
V1 ... 1st valve body V2 ... 2nd valve body

Claims (5)

Mounting cylinder member (2) for mounting the container body on the mouth and neck,
A spray body (10) including a main cylinder (14) hanging downward from the mounting cylinder member (2) and having a first valve body (V1) formed in a lower portion of the main cylinder (14).
It is provided so as to be urged upward with respect to the spray body (10) so that it can move up and down, and it moves up and down to the plunger body (32) standing up from the inside of the main cylinder (14) and the upper part of the plunger body (32). It is provided with an operating member (30) in which a second valve body (V2) is formed between the push-down head (50) which is possibly attached.
A sub-cylinder (60) having an inner diameter larger than that of the main cylinder (14) is provided below the push-down head (50).
The lower piston (36) slidable in the main cylinder (14) is slidable in the lower part of the plunger body (32), and the sub-cylinder (60) is slidable in the upper part of the plunger body (32). Each upper piston (44) is formed,
In addition, in a spray spray in which a recess (15) for releasing residual pressure is recessed on the inner surface of the main cylinder (14).
On the inner surface of the lower portion of the sub-cylinder (60), a lowering allowance (d) of the upper piston (44) is provided between the upper piston (44) and the lower piston (44) to regulate the lowering amount of the upper piston (44). A spray spray characterized by providing a regulated convex portion (66). The sub-cylinder (60) has a cylinder peripheral wall (62) on the inner surface to which the upper piston (44) can be slidably contacted, and the regulation convex portion (66) is formed integrally with the cylinder peripheral wall (62). The spray spray according to claim 1, wherein the spray spray is provided. The spray spray according to claim 2, wherein a plurality of regulating convex portions (66) are intermittently provided in the circumferential direction of the sub-cylinder (60). The invention according to any one of claims 1 to 3, wherein the regulation convex portion (66) is connected to the cylinder peripheral wall (62) via a deformable movable portion (64). Spray spray. An engaging concave groove (71) to which the lower end of the upper piston (44) can be engaged is provided around the lower portion of the inner surface of the sub-cylinder (60), and the lower edge of the engaging concave groove (71) is provided. The spray spray according to claim 2, wherein the regulated convex portion (66) is formed so as to project inward from the groove bottom (71a) of the engaging concave groove (71).

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