JP2001048254A - Delay jet device for aerosol container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a delay jet device used for an aerosol container and securing the delay time by a simple structure. SOLUTION: A content continuously jetted by a continuous jet mechanism 14 is introduced into an introduction chamber 22 outside a stem 3, and a delay sheet 32 is set by an adhesive mass 33 from the side of a delay operation chamber 27 communicating with the introduction chamber through a communication hole 20. Thus the time until the bonded delay sheet 32 is released can be used as the delay time by utilizing a content liquid from the communication hole 20 and the pressure of the content liquid applied through the communication hole 20 and melting the adhesive mass 33, and the communication hole 20 is just blocked by the delay sheet 32 in a simple structure of an aerosol container.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a delay injection device for an aerosol container, which has a simple structure so that continuous injection of aerosol contents is performed after a predetermined time has elapsed after the injection operation.

[0002]

2. Description of the Related Art When an aerosol content is used as an insecticide that is not desirable to be in contact with or inhaled to the human body, the aerosol content is not sprayed at the same time as the spraying operation, and is sprayed after a certain evacuation time has elapsed. Need to be
Conventionally, various delay injection devices have been proposed.

[0003] For example, the delay injection device disclosed in Japanese Utility Model Laid-Open No. 56-80257 has a cylinder mounted on an upper portion of an aerosol container, and a piston biased by a spring in a direction for operating a stem is mounted in the cylinder. By using the frictional force between the O-ring attached to the outer periphery of the piston and the inner periphery of the cylinder, the evacuation time until the piston presses the stem is obtained.

In the delay injection device disclosed in Japanese Patent Application Laid-Open No. 62-19275, a fixed body is mounted on an upper portion of an aerosol container, and a control passage is formed in a chamber for introducing aerosol contents provided in the fixed body. A delay member such as a balloon made of a soft rubber material that is deformed by pressure due to the injection of the aerosol content or a rubber material that expands by pressure due to the injection is attached to the control passage, and the control passage is opened by deformation or destruction of the delay member. The time until the evacuation time is set.

Further, in the delay injection device disclosed in Japanese Patent Application Laid-Open No. 1-176467, a pipe which communicates with a top plate and a bottom plate with a slight gap therebetween is attached to a closed container partitioned into two upper and lower chambers. The lower chamber of the container is filled with a high-viscosity liquid, the contents of the aerosol are introduced from the upper part of the lower chamber, and the high-viscosity liquid is moved to the upper chamber via a pipe with the aerosol contents. The delay time is obtained by injecting from the injection port.

[0006]

In such a conventional delay injection device, when the evacuation time is obtained by utilizing the frictional force of the O-ring applied against the spring, the number of parts is large and the structure is complicated. Problem.

[0007] When the evacuation time is obtained by utilizing the deformation or destruction of a delay object such as a soft rubber material or a rubber balloon,
There is a need to make the cross-sectional shape of the delay object easily deformable or destructive.

In the case of a delay injection device using a high-viscosity liquid, the structure is relatively simple, but the lower chamber of a closed container filled with the high-viscosity liquid is externally connected via a pipe and an injection port. Therefore, there is a problem in that, as time elapses, it evaporates and decreases, or the high-viscosity liquid moves from the lower chamber depending on the storage state.

SUMMARY OF THE INVENTION The present invention has been made to solve the problems of the prior art, and a delay time can be secured with a simple structure, and the aerosol container does not evaporate or move during storage of the delay liquid. The purpose of the present invention is to provide a delayed injection device.

[0010]

In order to solve the problems of the prior art, a delay injection device for an aerosol container according to claim 1 of the present invention is a continuous injection device for continuously injecting the contents of an aerosol container through a stem. An injection mechanism is provided, and an introduction chamber into which the content continuously injected by the continuous injection mechanism is introduced is provided outside the stem, communicates with the introduction chamber through a communication hole, and communicates with the injection nozzle. A delay operation chamber is provided, and the communication hole that communicates the delay operation chamber with the introduction chamber is closed from the delay operation chamber side, and a delay sheet that is peeled off by continuously ejected contents is attached with an adhesive. It is characterized by the following.

According to this aerosol container delay injection device, the contents continuously injected by the continuous injection mechanism are introduced into the introduction chamber outside the stem, and the delay sheet is transmitted from the delay operation chamber side through the communication hole to the delay sheet. Is to be attached with an adhesive, and the delay time is defined as the time until the attached delay sheet is peeled off due to the dissolution of the adhesive by the content liquid from the communication hole or the pressure of the content liquid applied through the communication hole. Thus, a simple structure in which the communication hole is closed with the delay sheet can be achieved.

According to a second aspect of the present invention, in addition to the configuration of the first aspect, the delay operation device for an aerosol container further includes a lateral hole communicating with the injection nozzle in the delay operation chamber. Flatten the top of the operation room,
The present invention is characterized in that continuous ejection from the ejection nozzle is enabled even by contact of the separated delay sheet.

According to the aerosol container delay injection device, a horizontal hole communicating with the injection nozzle is formed in the delay operation chamber to flatten the top surface of the delay operation chamber, and also to contact the peeled-off delay sheet. The continuous injection from the injection nozzle is enabled through the horizontal hole, and the continuous injection can be performed more reliably while securing the delay time.

According to a third aspect of the present invention, in addition to the configuration of the first or second aspect, the aerosol container delay injection device further includes a delay sheet mounting portion for closing the communication hole from the delay operation chamber side. It is characterized by comprising a metal plate which is not adhered by the adhesive.

According to this aerosol container delay injection device, the mounting portion of the delay sheet that closes the communication hole from the delay operation chamber side is made of a metal plate that is not adhered with an adhesive, so that the adhesive state of the delay sheet is changed. The continuous injection can be performed more reliably while holding the delay time.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a delay injection device for an aerosol container according to the present invention will be described below in detail with reference to the drawings.

1 and 2 relate to an embodiment of a delay injection device for an aerosol container according to the present invention. FIG. 1 is a vertical sectional view at the time of rest, FIG. 2 is a vertical sectional view at the time of operation, and a vertical section at the time of injection. FIG.

The delay injection device 10 for this aerosol container
Is used by being attached to and fixed to the mountain cup 2 of the aerosol container 1 and provided with a substantially cylindrical fixed housing 11 made of synthetic resin or the like, and a fixing portion provided at an outer cylinder portion at the lower end thereof. It is fixed by being fitted to the mountain cup 2 of the aerosol container 1 via 12.

A substantially cylindrical movable housing 13 is mounted on the inner peripheral portion of the fixed housing 11 so that the movable housing 13 can rotate around its central axis along the inner peripheral surface of the fixed housing 11. Has become.

A continuous injection mechanism 14 for maintaining a continuous injection state is provided between the fixed housing 11 and the movable housing 13. The fixed housing 11 has a mounting groove parallel to a central axis from a lower end surface thereof. 15 are formed at two diagonal positions on the inner side of the side surface, and a groove cam 16 composed of a spiral groove is formed at the upper end of the mounting groove 15 continuously by 180 degrees so that the stem 3 of the aerosol container 1 is formed. On the other hand, the movable housing 13 is formed with a projection 17 constituting a cam follower at a diagonal position on the outer periphery of the lower end portion, while being formed with an axial stroke necessary for pushing to the injection state.

Accordingly, with the projection 17 of the movable housing 13 being moved in the axial direction along the mounting groove 15 of the fixed housing 11 and positioned within the groove cam 16, the movable housing 13 is rotated around its central axis. By doing so, the movable housing 13 can be moved downward by the groove cam 16, and by maintaining this state, the stem 3 of the aerosol container 1 can be pushed to be in a continuous injection state.

The movable housing 13 is provided with a first hollow portion 18 having a cylindrical portion having an open lower end, a conical portion continuous above the first hollow portion, and a second hollow portion 19 having a substantially cylindrical portion having an open upper end. The first hollow portion 18 and the second hollow portion 19 communicate with each other through a communication hole 20 at the center.

Then, a stem fitting member 21 is attached so as to close the lower end opening of the first hollow portion 18, and an introduction chamber 22 is formed integrally with the movable housing 13.

The stem fitting member 21 has a stem fitting hole 23 to be fitted and mounted on the stem 3 at the center of the lower surface, and protrudes from the upper surface to a position just before the upper end in the introducing chamber 22 to introduce the introducing nozzle. Part 24 is formed, and the stem fitting hole 2 is formed.
3 and the content introduction passage 25 passing through the introduction nozzle portion 24.
Is formed.

Further, an injection nozzle 26 is attached so as to close the upper end opening of the second hollow portion of the movable housing 13,
The delay operation room 27 is formed integrally with the movable housing 13.

The injection nozzle 26 is provided with a nozzle portion 28 projecting from the center of the upper surface, and has two injection ports 29 formed at the tip to inject diagonally upward.
The injection channel 30 communicating with the two injection ports 29 is
A communication groove 31 is formed in the radial direction on the lower surface of the injection nozzle 26, which is the top surface of the delay operation chamber 27, in communication with the injection flow path 30 at the center. It is.

In the movable housing 13, the delay sheet 32 is arranged so as to close the communication hole 20 for communicating the lower introduction chamber 22 and the upper delay operation chamber 27 from the delay operation chamber 27 side, and the adhesive sheet is provided. 33 is attached without bonding.

Therefore, even if the contents are introduced by continuous injection into the introduction chamber 22, the injection is not started from the injection nozzle 26 until the delay sheet 32 that closes the communication hole 20 is peeled off. Thus, a delay time can be secured.

The separation of the delay sheet 32 is performed by the communication hole 20.
This occurs due to the dissolution of the pressure-sensitive adhesive 33 by the content liquid from the container, the interaction of the pressure of the content liquid applied through the communication hole 20, or the action of either the dissolution or the pressure.

As the delay sheet 32, for example, AB
A sheet of synthetic resin such as S or vinyl chloride, or a metal such as stainless steel or tinplate, or a sheet of other material such as paper can be used. Use a material that does not deteriorate due to the contents or is damaged by the pressure of the contents. You can do it.

As the pressure-sensitive adhesive 33, one that can maintain a tacky state without bonding is used. For example, when the contents include ethanol or DME, an acrylic pressure-sensitive adhesive is used as the pressure-sensitive adhesive 33. Resin delay sheet 3
By attaching 2 in an adhesive state, the adhesive 33 can be dissolved depending on the contents, whereby the delay sheet 32 can be peeled off.

The adhesive 33 may be an acrylic adhesive, a natural rubber-based, synthetic rubber-based, vinyl acetate resin-based, or vinyl chloride resin-based adhesive.

The delay time is determined by the size of the communication hole 20 and the size of the delay seal 32. For example, when the diameter of the communication hole 20 is 4 mm, the delay time of the delay seal 32 is reduced.
Table 1 shows the results of experiments in which the delay times were determined when the diameters of the samples were changed to 13 mm, 14 mm, 15 mm, and 16 mm.

[0034]

[Table 1]

As can be seen from the table, although the experimental results vary, the larger the diameter of the delay sheet 32, the longer the delay time until the start of injection.

In the aerosol container delay injection device 10 configured as described above, when the contents are to be delayed injected,
Fixed housing 11 attached to aerosol container 1
, The movable housing 13 is rotated about its central axis, and the groove cam 16 and the projection 17 forming the continuous injection mechanism 14 are rotated.
The movable housing 13 is lowered by this, and the stem fitting hole 2 of the stem fitting member 21 integrated with the movable housing 13 is formed.
By pushing down the stem 3 fitted to 3, the injection of the contents is started (see FIG. 2A).

In this injection start state, the content injected from the stem 3 is transferred to the content introduction passage 25 of the stem fitting member 21.
Is introduced into the introduction chamber 22 from the leading end of the introduction nozzle portion 24 via the opening, and since the communication hole 22 is closed by the delay seal 32, the flow continues into the introduction chamber 22, and the internal pressure increases. When the object is full, the content comes into contact with the adhesive 33 to which the delay sheet 32 is attached through the communication hole 20, and the dissolution of the adhesive 33 by the content and the pressure of the content cause the central portion of the delay sheet 32. Is peeled, and the peeling gradually progresses around.

The adhesive sheet 33 to which the delay sheet 32 is attached has a lower adhesive strength.
When the separation proceeds and reaches the outer peripheral edge, the contents flowing in from the communication hole 20 communicate with the communication groove 31 through the delay operation chamber 27,
The injection port 2 reaches the injection channel 30 and is located at the upper end of the injection nozzle 26.
9 are continuously injected (see FIG. 2B).

Thus, after the movable housing 13 is turned into the continuous ejection state, the continuous ejection is not started until the delay sheet 32 is peeled off, and the delay time is obtained to obtain the continuous ejection state. it can.

There is a possibility that the peeled-off delay sheet 32 may contact the bottom surface of the spray nozzle 26 and block the spray flow path 30. However, the communication groove 3 is formed in the bottom surface (the top surface of the delay operation chamber 27).
Since 1 is formed radially, the contents can flow into the injection flow path 30 via the communication groove 31, and the continuous injection state can be maintained.

According to the aerosol container delay injection device 10, the communication hole 20 communicating the introduction chamber 22 and the delay operation chamber 27 is closed with the delay sheet 32, and the time until the separation is removed is defined as the delay time. Thus, the structure is simple, the number of parts is small, the production is easy, and the cost can be reduced.

Further, in the aerosol container delay injection device 10, all of the components including the delay sheet 32 can be made of synthetic resin, so that there is no need to disassemble and separate them at the time of disposal. can do.

Further, the delay time can be adjusted by adjusting the delay sheet 32.
The diameter of the delay sheet 32 can be appropriately selected by increasing the size of the portion on the bottom surface of the delay operation chamber 27 to which the delay sheet 32 is attached in an adhesive state. You can just respond.

Next, another embodiment of the aerosol container delay injection apparatus according to the present invention will be described with reference to FIG. 3, and the same parts as those in the above-described embodiment are denoted by the same reference numerals and description thereof will be omitted. .

In the aerosol container delay injection device 40, the continuous injection state is maintained via the continuous injection mechanism 14 to the fixed housing 11 fitted and fixed to the mountain cup 2 of the aerosol container 1 via the fixing portion 12. The movable housing 41 has a substantially hollow cylindrical shape, and the first hollow portion 42 in which the hollow portion narrows in four stages from the lower end through a step,
Hollow part 43, third hollow part 44, and fourth hollow part 4 at the upper end
5, an inverted U-shaped metal cup 46 of a metal plate is attached so as to cover the bottom of the third hollow portion 44 having a slight height, and a communication hole 47 is formed in the center of the metal cup 46. The upper third hollow portion 44 and the fourth hollow portion 45 communicate with the lower first hollow portion 42 and the lower second hollow portion 43.

Then, the stem fitting member 21 is attached so as to close the lower end opening of the first hollow portion 42, and the introduction chamber 22 is formed integrally with the movable housing 41.

The fourth hollow portion 4 of the movable housing 41
The injection nozzle 26 is mounted so as to close the upper end opening of the movable housing 41, and is integrated with the movable housing 41 to form the delay operation chamber 27.
Is configured.

The injection nozzle 26 is provided with a nozzle portion 28 protruding from the center of the upper surface, and has two injection ports 29 formed at the tip thereof for injecting diagonally upward.
The injection channel 30 communicating with the two injection ports 29 is
Is formed so as to penetrate through the lateral hole 48 on the side from the center of the injection nozzle 26, which is the top surface of the delay operation chamber 27, and is formed flat.

In such a movable housing 41, the delay sheet 32 is closed so that the communication hole 47 formed in the metal cup 46 communicating the lower introduction chamber 22 and the upper delay operation chamber 27 from the delay operation chamber 27 side. Is arranged and the adhesive 33
It is attached without bonding.

The other configuration is the same as that of the above-described embodiment, and the description is omitted.

Similarly, with the aerosol container delay injection device 40, the delay injection can be performed with the delay time until the delay sheet 32 is peeled off after the continuous injection operation by the continuous injection mechanism 14 is performed. .

According to the aerosol container delay injection device 40, the communication hole 47 formed in the metal cup 46 that connects the introduction chamber 22 and the delay operation chamber 27 is closed with the delay sheet 32, and until the separation sheet 32 is peeled off. Since the time is set as the delay time, the structure is simple, the number of parts is small, the manufacture is easy, and the cost can be reduced.

In the aerosol container delay injection device 40, the delay sheet 32 is attached to the metal cup 46 by the adhesive 3.
3, the adhesive 33 and the metal cup 46 are not bonded to each other by melting the base material (the metal cup 46 here), and a stable delay time can be secured. it can.

Further, in the aerosol container delay injection device 40, the injection passage 30 communicating with the two injection ports 29 of the injection nozzle 26 is formed so as to communicate from the center to the lateral hole 48 on the side, and the delay operation chamber is formed. Injection nozzle 26 which is the top surface of 27
The lower surface of the delay sheet 32 is formed flat, so that the horizontal hole 48 is not blocked by the peeled-off delay sheet 32, a continuous ejection state can be ensured, and when the delay sheet 32 is peeled off, the delay operation chamber 27 is closed. It will be pressed and stripped along the flat lower surface of the injection nozzle 26 which is the top surface,
The delay sheet 32 can be peeled off in a stable state.

The aerosol container delay injection devices 10 and 40 are those which are not desirable for the operator to come into contact with or inhale the aerosol container 1 as contents, such as insecticides, deodorants, and fragrances. It is used as a delay injection device for aerosol products filled with any of a disinfectant and a repellent.

If there is a possibility that the aerosol container itself may be corroded when the metal aerosol container is directly filled depending on the contents, an aerosol container having a double structure with a resin bag or the like is used. Particularly, in the case of highly corrosive contents, a synthetic resin cover is also attached to the mountain cup portion to which the valve of the aerosol container is attached so as to use an aerosol container in which the contents do not come into direct contact with metal.

In the above embodiment, the case where the continuous injection mechanism constituted by the groove cam and the projection is provided has been described.
However, the invention is not limited thereto, and another continuous injection mechanism such as a mechanism in which the state where the stem is pushed in is held by the stopper may be used.

[0058]

Next, Table 2 shows a formulation example (components of contents) of an aerosol product using the delay injection device for an aerosol container of the present invention.

The contents of the aerosol container to which the aerosol container delay injection device is used are filled with those which are not preferably contacted or inhaled by the operator and which need to be retracted after the injection operation. For example, Table 1 is filled with an insecticide for space 1, an insecticide for cockroaches 2, an insecticide for horticulture 3, an insecticide for unpleasant pests 5, showing an example of each component (% by weight) in Table 1, and As a odorant,
For example, Table 1 is filled with an indoor deodorant 4 showing an example of the component (% by weight).
The inside is filled with an antifungal agent 6, which is an example of a component (% by weight).

[0060]

[Table 2]

The aerosol products 1 to 1 of the respective formulation examples described above
In No. 6, since the injection was started after a sufficient evacuation time was secured, the operator did not contact the contents or sucked the contents.

[0062]

According to the aerosol container delay injection device according to the first aspect of the present invention, the contents continuously ejected by the continuous ejection mechanism are supplied to the outside of the stem. The delay sheet is attached with an adhesive from the side of the delay operation chamber, which is introduced into one of the introduction chambers and communicates through the communication hole, so that the adhesive is dissolved by the content liquid from the communication hole or added through the communication hole. The time until the attached delay sheet is peeled off by the pressure of the content liquid can be set as the delay time, and a simple structure in which the communication hole is closed with the delay sheet can be achieved.

According to the aerosol container delay injection device according to the second aspect of the present invention, a horizontal hole communicating with the injection nozzle is formed in the delay operation chamber to flatten the top surface of the delay operation chamber. Since the continuous ejection from the ejection nozzle is enabled through the horizontal hole even by the contact of the peeled-off delay sheet, the continuous ejection can be performed more reliably while securing the delay time.

Furthermore, according to the aerosol container delay injection device of the third aspect of the present invention, the mounting portion of the delay sheet that closes the communication hole from the delay operation chamber side is formed of a metal plate that is not adhered with an adhesive. As a result, the continuous ejection can be performed more reliably while maintaining the adhesive state of the delay sheet and securing the delay time.

[Brief description of the drawings]

FIG. 1 is a vertical sectional view of an embodiment of a delay injection device for an aerosol container according to the present invention at rest.

FIG. 2 is a longitudinal sectional view at the time of operation and a longitudinal sectional view at the time of injection according to an embodiment of the delay injection device for an aerosol container of the present invention.

FIG. 3 is a vertical cross-sectional view of another embodiment of the aerosol container delay injection device of the present invention at rest.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Aerosol container 2 Mountain cup 3 Stem 10 Delay injection device of aerosol container 11 Fixed housing 12 Fixed part 13 Movable housing 14 Continuous injection mechanism 15 Mounting groove 16 Groove cam 17 Projection (cam follower) 20 Communication hole 21 Stem fitting member 22 Introduction chamber Reference Signs List 23 Stem fitting hole 24 Introducing nozzle part 25 Contents introduction path 26 Injection nozzle 27 Delay operation chamber 28 Nozzle part 29 Injection port 30 Injection flow path 31 Communication groove 32 Delay sheet 33 Adhesive 40 Delay injection device for aerosol container 41 Movable housing 42 first hollow portion 43 second hollow portion 44 third hollow portion 45 fourth hollow portion 46 metal cup 47 communication hole 48 side hole

Claims (3)

[Claims] 1. A continuous injection mechanism for continuously injecting the contents of an aerosol container through a stem, and an introduction chamber into which the contents continuously injected by the continuous injection mechanism is provided outside the stem. Along with communicating with the introduction chamber through the communication hole, a delay operation chamber communicating with the injection nozzle is provided, and the communication hole communicating the delay operation chamber and the introduction chamber is closed from the delay operation chamber side, A delay injection device for an aerosol container, wherein a delay sheet that is peeled off by continuously injected contents is attached with an adhesive. 2. A horizontal hole communicating with the injection nozzle is formed in the delay operation chamber to flatten the top surface of the delay operation chamber, and the delay operation chamber is also provided with a contact with the peeled-off delay sheet from the injection nozzle. The delay injection device for an aerosol container according to claim 1, wherein the delay injection device is configured to be capable of continuous injection. 3. The aerosol container according to claim 1, wherein a mounting portion of the delay sheet for closing the communication hole from the delay operation chamber side is formed of a metal plate that is not adhered with the adhesive. Delay injection device.