JPH07132980A - Aerosol device having characteristic of sustained release - Google Patents

Abstract

PURPOSE:To provide a device of simple constitution wherein both momentary spray and diffusion for a long time after the spray can be effected. CONSTITUTION:A head piece 11 having a nozzle 10 provided with a first blowoff port 14 and a second blowoff port 15 having different directions and a globular member 18 for covering the head piece 11 are provided on the upper part of a body 1 of a vessel, and the globular member 18 is formed from a porous material into a cup-shape and an opening 22 is provided on its upper end, so that characteristic of sustained release is provided.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to an aerosol device having a sustained release property. More specifically, the present invention relates to an aerosol device capable of gradually evaporating a chemical liquid component not only at the time of performing a spraying operation but also for a considerable time thereafter.

[0002]

2. Description of the Related Art In general aerosol devices, when a valve operating means such as a push button is pressed, it can be sprayed from a nozzle provided in the push button. The length can be adjusted. However, when the push button is released, the spraying stops and the fine particles of the stock solution suspended in the air dissipate, so that the effect of the drug solution also disappears.

However, in insecticides and toilet fragrances, it is sometimes desirable to keep the insecticidal effect and fragrance as long as possible even after use. To meet such demands, for example, an aerosol device with a lock function that can hold the push button even when you release your hand, and a long-time spray type with a propeller or fan that sprays spray widely in the room. Aerosol devices have been proposed.

On the other hand, in a field different from that of the aerosol device, solid volatile insecticides and fragrances are hung in costume chests and toilets, and liquid fragrances contained in bottles are used to cover bottles. It is also widely practiced to remove or loosen and gradually diffuse into the air.

[0005]

In the above long-term spray type aerosol device, even if the spray amount is narrowed down as much as possible, with a normal volume (50 to 500 cc), the spraying is continued for only several tens of minutes to one hour. Can not. On the other hand, in the case of solid or liquid pesticides and fragrances that have volatile components, the effect is maintained for a long time, but on the other hand, it is quickly replenished when the concentration in the air drops temporarily due to the scattering due to the opening and closing of the door. Can not do it.

[0006] The present invention has the advantages of each of the conventional insecticide and fragrance application devices, namely, the advantage of instantaneously spraying a considerable amount of an aerosol device or the like, and the long-term use of volatile solid or liquid drugs. An object of the present invention is to provide a drug application device which has the advantage of sustaining the effects and has a structure that is not so complicated as compared with a conventional aerosol device.

[0007]

A first aspect of an aerosol device having a sustained release property of the present invention is a container body containing a stock solution, a discharge means provided at the mouth of the container body, and the discharge means. And a liquid holding member that is provided so as to block the course of the flow that has flowed out from the second injection port. There is.

The liquid holding member is preferably made of a porous material that allows vapor or liquid to pass therethrough. In that case, the liquid holding member has a dome-shaped form that covers the head piece, the first jet port faces diagonally upward or upward, and the second jet port faces sideways or diagonally upward. It is possible to employ a structure in which an opening is formed in a portion corresponding to the path of the flow from the first injection port in. In the case of such a dome-shaped liquid holding member, or even in the case of another shape, one having a flow control means for directing the flow coming out from the second injection port to the outer surface of the liquid holding member. Can be adopted.

A second aspect of the apparatus of the present invention is that the container body containing the stock solution, the discharge means provided at the mouth of the container body, and the jetting while expanding the air flow provided at the outlet of the discharge means. It is characterized in that it is composed of a head piece having a jet port for making it and a liquid holding member provided so as to block a part of the airflow coming out of the jet port. In such an apparatus, it is possible to employ an apparatus including a flow control means for directing a part of the air flow coming out of the jet port to the surface of the liquid holding member.

[0010]

In the apparatus of the first aspect (the apparatus of claim 1), when the discharging means is operated, the stock solution is jetted in the form of mist from the first and second nozzles of the headpiece. At that time, since the undiluted solution from the first injection port is unobstructed, the undiluted solution is widely dispersed in the air as it is, and the concentration of the undiluted solution around is temporarily increased. On the other hand, the undiluted solution that has flowed out of the second ejection port rides on the ejected air flow and collides with the liquid holding member, and adheres to the front or back surface thereof. Then, after the operation of the discharge means is finished, effective components of the stock solution adhered to the surface of the solution holding member, for example, insecticidal components, aromatic components, etc. gradually evaporate and diffuse into the air, and the temporarily sprayed stock solution. Even after the concentration decreases, it keeps a constant concentration.

As described above, in the device of the present invention, the temporary high-concentration jetting and the sustained release effect for a long time are combined,
It produces a preferable atmosphere forming action.

In the apparatus of the second aspect, when the undiluted solution ejected from the second ejection port adheres to the liquid holding member, the undiluted solution is once absorbed inside the liquid holding member made of a porous member. Therefore, the liquid holding member can hold a relatively large amount of stock solution, and then the stock solution gradually evaporates from the surface and the opposite surface.

In the apparatus according to the third aspect, since the liquid holding member has a dome shape and covers the head piece, the air flow containing the undiluted solution ejected from the second jet port swirls inside the dome-shaped liquid holding member. , Apply the undiluted solution to the entire inner surface. Then, since the undiluted solution evaporates from a wide range on both the front side and the back side of the liquid holding member, an efficient and stable sustained release action is achieved.

In the apparatus of the fourth aspect, the air flow containing the undiluted solution is first directed to the flow control means, whereby the air flow is redirected and collides with the outer surface of the dome-shaped liquid holding member, for example. Then, it gradually evaporates from the outer surface. Therefore, this product can be evaporated from a wide range on the front surface side even when the liquid holding member is made of a material having no liquid permeability.

In the apparatus according to the second aspect (the apparatus of claim 5), the liquid holding member receives a part of the air flow containing the undiluted solution which spreads out from one nozzle and holds the undiluted solution. The airflow not received by the holding member is diffused into the air as it is. Therefore, the effect of the undiluted solution is immediately produced by the undiluted solution that is released as it is, and the continuous effect is maintained by the gradual evaporation of the undiluted solution held in the solution holding member thereafter. Further, since this one has the functions of the above-mentioned two nozzles by one nozzle, the number of parts is small and the structure is simple.

According to the apparatus of claim 6, like the apparatus of claim 4, even if the liquid holding member is formed of a material having no liquid permeability, it can be evaporated from a wide range.

[0017]

1 is a sectional view showing an embodiment of the device of the present invention, FIG. 2 is a perspective view of the device of FIG. 1, and FIGS. 3a and 3b. 3 is a perspective view of the nozzle portion according to the present invention as seen from diagonally above and diagonally below, FIG. 4 is a vertical sectional view of the nozzle portion of FIG. 3, and FIG. Side view, FIG.
6a and 6b are a sectional view and a plan view showing another embodiment of the nozzle part according to the present invention, FIG. 7 is a sectional side view of the essential part showing a further embodiment of the device of the present invention, and FIG. It is a principal part perspective view which shows other Example of the apparatus of invention.

A device A shown in FIG. 1 is a bottomed cylindrical container body 1 used in a conventionally known aerosol device, and a valve mount cup 2 wound around an upper opening portion thereof.
And an aerosol valve 3 clinched in the center of the valve mount cup 2. An aerosol valve (hereinafter, simply referred to as a valve) 3 constitutes a discharge means in this embodiment, and includes a cylindrical housing 4, a stem 5 vertically slidably provided therein, and a stem 5.
Is a well-known one which is composed of a spring 6 for urging the valve upward and a gasket 7 fixed between the housing 4 and the valve mount cup 2. A dip tube 8 is attached to the lower end of the housing 4.

At the upper end of the stem 5, a head piece 11 in which a pressing lever 9 and a nozzle portion 10 are integrated is attached. The apparatus A of this embodiment is characterized in that the nozzle portion 10 is provided with a first nozzle 12 that extends straight upward and a second nozzle 13 that branches laterally from the middle of the first nozzle 12. . Each nozzle 12,
A known spray nozzle member 16 having a first injection port 14 and a second injection port 15 is attached to the tip of 13.

Further, in the apparatus A of the present embodiment, a cylindrical or spherical shell-shaped squirt member 18 is fitted as a liquid holding member on the winding tightening portion 17 of the valve mount cup 2. The lower end of the hose member 18 has a ring shape, and is an attachment portion 20 in which an engagement groove 19 that is elastically fitted to the winding fastening portion 17 is formed inside. The upper part 21 is curved in a hemispherical shape toward the center, and an opening 22 is provided at the upper end for letting out the airflow K1 ejected from the first ejection port 14 as it is to the outside. In other words, it can be said that the squirt member 18 has a hemispherical bottom surface and a cup having an opening at the center of the bottom surface is reversed. A window 23 for inserting a finger for operating the presser lever 9 is formed in a portion of the squirt member 18 corresponding to the presser lever 9.

The entire squirt member 18 is made of a relatively hard, liquid- or vapor-permeable porous material.
Further, a material having high wettability is preferable so that the droplets on the surface can easily spread. Examples of such a material include, but are not limited to, unglazed pottery, open-cell foam synthetic resin, paper such as Japanese paper, and non-woven fabric.

Aerosol device A constructed as described above
Is sold by filling a container body 1 with a propellant and a chemical solution containing an active ingredient such as a volatile deodorant or fragrance, or an insecticide for harmful insects such as flies and mosquitoes.
It is used by placing it in the kitchen. For example, in the case of the deodorant placed in the toilet, the pressing lever 9 is pushed downward after using the toilet and before leaving the toilet. Then, the deodorant is sprayed upward from the first nozzle hole 14, and the deodorant temporarily fills the toilet. As a result, the bad odor immediately after use is immediately deodorized and the user's discomfort is alleviated.

Further, the deodorant is also sprayed from the second nozzle 15 at the same time as the spray from the first nozzle 14, and a part of the sprayed deodorant mist is directly attached to the inner surface of the squirt member 18.
The remaining ones are as shown in the arrow P of FIG.
Circulates along the inner wall of the squirrel and adheres evenly to the inner surface of the squirt member 18 over a wide range. The attached mist-like chemical liquid returns to a liquid state and is once absorbed in the wall of the squirt member 18. Then, thereafter, it gradually evaporates from the front surface of the squirt member 18. Therefore, the deodorizing effect is maintained for a long time, and the person who subsequently uses the toilet does not feel uncomfortable.

In the above-mentioned embodiment, the second nozzle 13 is branched from the middle of the first nozzle 12 and the nozzle member 16 is provided at the tip of each nozzle.
As shown in FIG. 4B and FIG. 4, one spray nozzle member 25 provided at the tip of one nozzle portion 24 extending straight upward is provided with a first jet port 14 facing upward and a second jet port 1 facing sideways.
5 may be provided.

The nozzle member 25, as shown in FIG.
A thin shaft portion 26 fitted in the tip of the nozzle portion 24 and a flange portion 27 at the tip are provided. The first injection port 14 is formed at the center of the flange portion 27, and
As shown in b, several grooves 28 are formed radially from the periphery of the shaft portion 26 to the bottom surface of the flange portion 27, each groove 28 being continuous while being bent at a right angle. The groove 28
May be one.

When the nozzle member 25 is fitted to the tip of the nozzle portion 24 as shown in FIG. 2A, the groove 28 forms a passage extending from the inside of the nozzle portion 24 to the side. The openings at the tips of these passages become the second injection holes 15. That is, this thing is provided with one 1st nozzle 14 and several 2nd nozzles 15. It jets from the 1st nozzle 14 upwards and straight upwards, and from the 2nd nozzle 15 of the hoya member 18. It is widely jetted radially toward the inner surface. In this case, the nozzle portion 24 is made relatively short so that the mist emitted from the second injection port 15 does not go outside from the opening 22 at the upper portion of the squirt member 18 but goes toward the inner surface of the squirt member 18.

Since the nozzle member 24 shown in FIGS. 3 and 4 can constitute a large number of injection ports 14 and 15 with one member, the number of parts can be reduced and the manufacturing cost can be suppressed. Although the second injection port 15 is oriented horizontally in FIG. 4, it may be directed obliquely upward.

In the aerosol device B shown in FIG.
A head piece 30 attached to the upper end of the stem 5 has a boss portion 31 and a disc-shaped flange portion 32 extending outward from the boss portion 31 in the radial direction. An inner edge of the lower end of the squirt member 18 is engaged with a locking projection 33 provided around the upper surface of the flange portion 32. Further boss 3
1 has a first nozzle 14 facing upward and a second nozzle facing sideways.
The injection port 15 is formed.

In this product, the entire squirt member 18 also serves as a push button, and when the squirt member 18 is pushed downward, the aerosol valve is opened and the chemical solution is jetted in a mist form from each of the jet ports 14 and 15. Other than that, the same operation as the above-described device A is achieved. It is also possible to employ a nozzle member having a plurality of nozzles shown in FIGS.

FIGS. 6a and 6b show another embodiment in which a second injection port is provided at the tip of the nozzle portion. When the tubular nozzle portion with the closed tip is integrally molded with synthetic resin or the like, it is relatively easy to provide the first nozzle opening 14 in the axial direction at the tip, but a second nozzle that is laterally or diagonally upward is provided. Requires secondary processing such as drilling, leading to higher costs. In the nozzle portion 35 of FIG. 6, a cutout groove 37 reaching the internal cavity 36 is provided on the outer periphery of the upper end of the nozzle portion 35, and the portion opened by the cutout groove 37 is used as the second injection port 38. The cutout groove 37, as shown in FIG.
It may be provided radially. When the nozzle portion 35 is manufactured by injection molding, the mold can be separated into upper and lower parts, so that the second injection port facing sideways or obliquely upward can also be formed at the same time.

In any of the above-mentioned embodiments, all the chemical liquids coming out from the second nozzles 15 are directed to the inner surface of the squirt member 18, the chemical liquids are partially evaporated from the inner surface, and most of the other liquids are squirt. After passing through the member 18, it is evaporated from its surface to the outside. However, as in the aerosol device C shown in FIG. 7, the second injection port 15 may be directly injected to the front surface side of the hoya member 18. However, in that case, since the airflow injected from the second injection port 15 does not easily flow along the surface of the squirt member 18 which is curved in a spherical shape, it emerges from the second injection port 15 as shown in FIG. 7. The air flow K3 is applied to the squirt member 1
It is preferable to provide an air flow control plate 40 to be attached to the surface of No. 8.

That is, in the apparatus C, the upper end of the squirt member 18 is attached to the head piece 41, and the container body 1 is arranged inside the cavity 42 below the squirt member 18. The airflow control plate 40 is provided so as to expand outward from the upper end of the head piece 41 and downward, and itself has a partially spherical shell shape. Therefore, a gap 41 through which the airflow K3 flows is formed between the airflow control plate 40 and the outer surface of the squirt member 18. Although the squirt member 18, the head piece 41, the air flow control plate 40, etc. are usually separate parts, they may be integrally molded, and in some cases, the squirt member 18 and the container body 1 may be integrated. Furthermore, the surface of the container body 1 can be used as a liquid holding member,
In that case, the squirt member made of a porous material can be omitted.

In the aerosol device C, if the upper surface of the air flow control plate 40 is pushed down, the stem can be pushed to open the aerosol valve. The mist-like chemical liquid ejected laterally from the second jet port 15 between the air flow control plate 40 and the surface of the squirt member 18 rides on the air flow K3 and flows downward along the surface of the squirt member 18, and the squirt member It adheres to the surface of 18 over a wide area. In addition, at the lower end of the squirt member 18,
Returning part 4 for receiving the liquid medicine that drops as liquid droplets
4 is preferably provided.

In the apparatus C of FIG. 7, the air flow is blown directly onto the surface of the squirt member 18, so that the squirt member 18 itself does not need liquid permeability. However, in order to absorb the adhering liquid and enhance the effect of sustained release, it is preferable to use a porous material.

The aerosol device D shown in FIG. 8 partially receives a nozzle portion 46 having a nozzle 45 capable of ejecting a single chemical solution while spreading it, and an air flow K4 expelled conically from the nozzle 45. , A squirt member 48 having an opening 47 for radiating the rest to the outside. The opening 47 of the squirt member 48 is preferably provided with, for example, an airflow controller 49 that is inclined inside the squirt member 48. This is one of the airflows K4 ejected from one nozzle 45
The airflow that has passed through the opening 47 to the outside is diffused into the outside air as it is, and the airflow blocked by the edge of the opening 47 or the airflow control unit 49 is received by the inner surface of the squirt member 48, or inside the squirt member 48. It is swung along and attached to any part of the inner wall.

Therefore, in the device D shown in FIG. 8, the number of the injection port 45 and the nozzle portion 46 may be one, and the manufacturing is simple. Such a configuration with a single nozzle section can also be adopted for the devices A, B, and C shown in FIGS.

Although the squirt member has a simple cylindrical shape in the above-mentioned embodiment, it may be given a decorative appearance such as a doll or a flower. The container body may be a glass bottle or the like, except when the container body itself is used as a liquid holding member. Further, as for the structure of the aerosol valve, a tilting type in which the valve opens when the stem is tilted can be adopted. In addition to a normal aerosol device in which a propellant is filled in the container, a pump type aerosol device for pressurizing and spraying with a pump can be used, and the same effect can be obtained. The aerosol device in the present specification is a concept including a device that pressurizes with such a pump.

In some cases, especially at the second nozzle,
It is also possible to eject the liquid as it is without spraying. Further, as the undiluted solution, mere water containing no medicinal component may be adopted. This can be used for humidity control, for example.

[0039]

INDUSTRIAL APPLICABILITY The sustained-release aerosol device of the present invention can temporarily spray or inject a liquid medicine,
Moreover, after the temporary spraying or jetting, the drug solution can be evaporated for a considerable time.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of the device of the present invention.

FIG. 2 is a perspective view showing the operation of the apparatus of FIG.

3A and 3B are perspective views of a nozzle portion according to the present invention as seen from diagonally above and diagonally below, respectively.

FIG. 4 is a vertical cross-sectional view of the nozzle portion of FIG.

FIG. 5 is a cross-sectional side view of essential parts showing another embodiment of the device of the present invention.

6A and 6B are a cross-sectional view and a plan view showing another embodiment of the nozzle unit according to the present invention, respectively.

FIG. 7 is a cross-sectional side view of essential parts showing a further embodiment of the device of the present invention.

FIG. 8 is a perspective view of an essential part showing still another embodiment of the device of the present invention.

[Explanation of symbols]

 A aerosol device 1 container body 3 aerosol valve 11 headpiece 14 first nozzle 15 second nozzle 18 squirt member B aerosol device 30 headpiece C aerosol device 37 airflow control plate 38 second nozzle 39 headpiece D aerosol device 45 nozzle 48 squirt Member 49 Airflow controller

Claims (6)

[Claims] 1. A container main body containing a stock solution, a discharge means provided at the mouth of the container main body, and first and second injection ports provided at the outlet of the discharge means and directed in mutually different directions. An aerosol device having a sustained release property, which comprises a headpiece and a liquid holding member provided so as to block the course of the flow from the second injection port. 2. The device according to claim 1, wherein the liquid holding member is formed of a porous material that allows vapor or liquid to pass therethrough. 3. The liquid holding member has a dome-shaped form for covering the head piece, the first jet port faces obliquely upward or upward, and the second jet port faces laterally or obliquely upward. The device according to claim 2, wherein the opening is formed in a portion of the holding member corresponding to the path of the flow from the first injection port. 4. The apparatus according to claim 1, further comprising flow control means for directing the flow emerging from the second injection port to the outer surface of the liquid holding member. 5. A container body containing the undiluted solution, a discharge means provided at the mouth of the container body, and a headpiece provided at the outlet of the discharge means and having a nozzle for ejecting while expanding the air flow, An aerosol device having a sustained release property, which comprises a liquid holding member provided so as to block a part of an air flow emitted from a nozzle. 6. The apparatus according to claim 5, further comprising a flow control means for directing a part of the air flow coming out of the jet port toward the surface of the liquid holding member.