JP3477493B2 - Spray nozzle for aerosol containers - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an injection nozzle for an aerosol container, and more particularly to an injection nozzle for an aerosol container capable of ejecting contents from a single injection nozzle over a wide range.

[0002]

2. Description of the Related Art Conventionally, various proposals have been made for effectively injecting the contents of an aerosol container, but most of them have a limited upper or side angle in the same direction as the axial direction of the injection nozzle. In order to inject into a wide range, it is necessary for an operator of the aerosol container to inject while changing the direction of the injection nozzle of the aerosol container.

As a proposal to eliminate such inconvenience,
Two passages are formed in a horizontal direction in a fitting cylinder that fits the stem of the aerosol container, and a guide member having an axis inclined outward with respect to the axial direction of the stem is provided at the tip of the passage.
It is known that an injection nozzle having a predetermined diameter is attached to the tip of the guide member (see Japanese Patent Application Laid-Open No. 4-45735). Since the aerosol container having the spray nozzle device of this configuration can spray a wide range of contents even when the container is sprayed in a fixed state, it is particularly effective in the case of a total amount spray type insecticidal aerosol container. Used for.

Further, as shown in FIG. 5, the tip of the nozzle main body 55 having one content passage 58 inside has a conical shape 5.
No. 6, and a multi-direction injection nozzle in which a plurality of points at the tip of the passage 58 are opened as injection holes 57 along the circumference in the conical portion (see Japanese Utility Model Laid-Open No. 3-38167).
Is also known.

[0005]

An injection nozzle device having a configuration in which two passages are formed in a horizontal direction in a fitting cylinder that fits into the stem of the aerosol container described above is provided with two passages extending in the horizontal direction. At least three guide members formed in a slanted shape at the tip of the passage and at least three members of an injection nozzle attached to the end of each guide member are required, and the structure is complicated and the manufacturing is difficult and the injection nozzle device is also required. It is what constitutes itself as a new thing,
It was difficult to partially share parts with the injection device used conventionally. Therefore, its use is limited to some extent.

The injection nozzle of the form shown in FIG. 5 is effective because it is made of a single member and can be manufactured at low cost, but the injection speed at the injection hole is relatively low. Therefore, the injection distance was naturally limited. The present invention is intended to eliminate the disadvantages of the conventional nozzle device for jetting as described above, and specifically, it is possible to share the number of parts and the conventionally used parts in common. It is an object of the present invention to obtain an injection nozzle for an aerosol container that is simple and inexpensive. Another object of the present invention is to provide an injection nozzle for an aerosol container, which allows a user to easily select a narrow range injection and a wide range injection by himself / herself.

[0007]

In order to solve the above-mentioned problems and to achieve the object, the present invention is an injection nozzle for an aerosol container, which is joined to the tip of a guide member joined to the stem of the aerosol container. The tip surface of the injection nozzle has at least two surfaces inclined with respect to the axis of the injection nozzle, and the injection nozzle is formed with a plurality of holes parallel to the axis, and a part of the tip of the holes is formed. Is opened on each of the inclined surfaces, and an injection nozzle for an aerosol container is disclosed.

The present invention further provides an aerosol nozzle injection nozzle for joining to the tip of a guide member joined to the stem of the aerosol container, wherein the tip surface of the jet nozzle is at least a surface inclined with respect to the axis of the jet nozzle. The injection nozzle has a plurality of holes that are inclined outwardly with respect to the axial direction of the injection nozzle, and the tips of the holes are open to the inclined surface. An injection nozzle for an aerosol container characterized by the above is also disclosed. In the injection nozzle of this aspect, it is a preferable aspect to insert the second injection nozzle into the opening.

The injection direction of the injection nozzle may be the axial direction of the aerosol container or the direction inclined with respect to the axial line. Further, the aerosol container and its contents are not particularly limited, but it is effective to use it for injecting a total amount injection type aerosol fumigant. Further, it is preferable that the injection nozzle according to the present invention is configured so as to be detachably fitted to the tip of the guide member joined to the stem, whereby the injection nozzle can be replaced with another injection nozzle of another form. The applicable range of is expanded.

[0010]

[Operation] The content of the aerosol container passes through the guide member from the stem of the container to reach the aerosol container injection nozzle according to the present invention by opening the valve mechanism incorporated therein. Then, in the injection nozzle, after passing through a small-diameter communication hole formed corresponding to each opening formed on the slope, the injection is performed from the opening at a high injection speed and in multiple directions. Thereby, the contents are sprayed at a time in a wide range without moving the aerosol container.

When the injection nozzle is detachably fitted in the guide member, the normal injection can be performed by replacing the nozzle of a normal type.

[0012]

EXAMPLES Hereinafter, the injection nozzle for an aerosol container according to the present invention will be described in more detail based on examples. FIG. 1 is a partial sectional view showing a state in which an embodiment of an injection nozzle for an aerosol container according to the present invention is mounted on an aerosol container main body. The aerosol container 10 is an ordinary pressure container without any particular limitation, and a stem 11 connected to a valve mechanism (not shown) in the container is located at the upper end of the container. A guide member 20 is joined to the tip of the stem 11, and an injection nozzle 30 according to the present invention is joined to the tip of the guide member 20. The stem 11 and the guide member 20 and the guide member 20 and the injection nozzle 30 may be joined by using an appropriate joining means usually used in an aerosol container and its ejecting device. Particularly, joining by elastic fitting between elastic members or appropriately. Means such as joining by means of screw engagement with a member having the above rigidity is a preferable mode.

At the tip portion of the injection nozzle 30, the central portion of the upper end is a narrow flat portion 31, and slope portions 32 and 33 are formed downward from both sides of the flat portion 31 (FIG. 2).
reference). Further, the guide member 20 has a communication hole 21, and the injection nozzle 30 also has a communication hole 34 in a state of communicating with the communication hole 21. The communication hole 34 is bifurcated at the tip of the injection nozzle 30 to form branch passages 34A and 34B having a small cross-sectional area, and the tips thereof are opened 35A and 35B in the inclined surfaces 32 and 33, respectively. The small-diameter branch passages 34A and 34B are imaginary planes including the axis AA of the communication hole 34 of the injection nozzle 30 and the center portion in the width direction of the flat portion 31 (in FIG. 1, a plane perpendicular to the plane including the axis AA of the communication hole 34). It is formed symmetrically with respect to the plane) and at an angle inclined outward with respect to the virtual plane. Preferably, this inclination angle is 45 ° to 80 °.

In the embodiment shown in FIGS. 1 and 2, each of the openings 35A, 35B of the small-diameter branch passages 34A, 34B has an appropriate diameter and is resistant to wear when the contents are ejected. The second injection nozzles 36A and 36B formed of metal or hard synthetic resin are fitted therein. Although the guide member 20 is shown as a single independent member in the drawing, it is usually configured as a part of a valve opening / closing operation tool formed in a conventional aerosol container injection mechanism. Further, the valve opening / closing operation tool may be connected by an appropriate link mechanism so that the valve opening / closing operation tool can be moved together with the movement of the valve opening / closing operation tool.

When operating the aerosol container, the user pushes a lever (not shown) formed on the injection nozzle of the aerosol container 10 held by the user or puts a finger on the narrow flat portion 31 and pushes it downward. As a result, the valve mechanism inside the aerosol container 10 (not shown) is opened, and the contents inside the container pass through the stem 11, the communication hole 21 of the guide member 20, the communication hole 34 of the injection nozzle 30, and the bifurcated branch passages 34A, 34B. And is accelerated there to be injected from each of the openings 35A and 35B. In this embodiment, since the bifurcated branch paths 34A and 34B are ejected at an angle formed with the virtual plane, the user simply ejects the lever or the like with a finger to eject a wide range and a long distance. It becomes possible to do.

FIG. 3 is a sectional view showing another embodiment of the injection nozzle according to the present invention. The outer shape of the injection nozzle 40 is similar to that of the first embodiment, and the lower small diameter portion 4 is formed.
1 and an upper large-diameter portion 42, the small-diameter portion 41 has an outer diameter that can be removably fitted into the tip of the guide member 20,
The large-diameter portion 42 has a leveling portion 43 and inclined surfaces 44 and 45 which are shown substantially symmetrically with respect to the axis BB in the drawing.

This injection nozzle 40 differs from that of the first embodiment in the communication hole formed inside. That is,
The communication hole communicates with the first communication hole 46 that can communicate with the communication hole 21 formed in the guide member 20, and communicates with the first communication hole 46 and extends substantially in the same direction as the axis BB direction of the injection nozzle 40. It is composed of two small-diameter second communicating holes 47A, 47B that emerge, and the two small-diameter second communicating holes 47A, 47B.
A part of the tip portion of the above has openings 48A and 48B in the inclined surfaces 44 and 45, respectively.

In the injection nozzle of this embodiment, at the time of injection, the contents are accelerated by passing through the second communication holes 47A and 47B, and are partially ejected directly from the openings 48A and 48B, respectively, and partly. Opening 48 after colliding with upper wall surfaces 49A, 49B of 47A, 47B and changing direction
Eject from A and 48B. And the openings 48A, 48B
Is formed on the surface inclined with respect to the axis BB as described above, the contents ejected from the openings 48A and 48B as a whole have an ejection angle inclined by a predetermined angle in the left and right directions in FIG. 3 and a long distance. Is jetted up to. Although this injection angle is arbitrary, it is preferably about 45 ° to 80 ° and appropriately selected according to the spray environment. At this time, the injection angle can be changed by appropriately selecting the angles of the inclined surfaces 44 and 45 and the sizes of the openings 48A and 48B.

Since this injection nozzle 40 does not require a communication hole inclined with respect to the axis BB, it can be easily manufactured as compared with the injection nozzle 30 of the first embodiment.
Since the injection nozzle according to the present invention can be configured to be joined to the guide member used in the conventional injection mechanism of the aerosol container, the parts can be shared and the cost can be reduced. Furthermore, it is possible to selectively use the spray nozzle of the present invention and the conventional spray nozzle, thereby expanding the range of use of the aerosol container.

FIG. 4 shows a comparison between the case where the contents are jetted by the jet nozzle according to the present invention shown in FIG. 3 and the case where the contents are jetted by the conventional jet nozzle shown in FIG. 5 under the same conditions. There is. In the figure, the solid line shows the ejection area of the contents by the ejection nozzle according to the present invention, and the dotted line is a schematic plan view showing the ejection area by the conventional ejection nozzle. As is clear from the figure, the spraying area of the contents by the injection nozzle according to the present invention reaches farther than the nozzle of the conventional example, and the superiority of the injection nozzle according to the present invention is clear.

The above description is only a description of some embodiments of the injection nozzle for an aerosol container according to the present invention, and there are many other variations. For example, as the opening at the tip of the injection nozzle, one formed symmetrically on each of the inclined surfaces symmetrically arranged is shown, but this is shown as the best mode for the convenience of manufacturing such as die cutting. Not too much, there are many other variants.

First, the narrow flat portion 31 or 43 is not always essential, and is unnecessary when a member for operating the valve mechanism is separately provided. Further, it is not essential that the number of small-diameter branch passages is two and that they are formed at symmetrical positions, and an appropriate number may be formed in the radial direction with respect to the axis of the injection nozzle when viewed in plan. Further, it may be formed only in the opposite direction without forming it in the direction of being ejected to the user side.

In any of the first and second embodiments, the guide member 20 may be bent at 90 °, for example, and the injection nozzle may be attached to the tip of the guide member 20, or the injection nozzle itself may be connected to its communicating hole. It may be formed to have a shape in which a portion is bent at a required angle. In that case, the content can be sprayed in front of the user at a wider angle, which is effective, for example, in the case of an indoor pesticide aerosol container.

[0024]

EFFECTS OF THE INVENTION Since the present invention has the above-mentioned structure, it is possible to obtain an injection nozzle for an aerosol container which has a simple structure and a wider area, by only slightly modifying the tip of the injection nozzle. You can Therefore, it is possible to widely use the constituent members of the existing aerosol container injecting device, which brings a great cost advantage. Further, by detachably mounting the spray nozzle on the guide member, the user can freely select the narrow range spray and the wide range spray.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional view showing an embodiment of an injection nozzle according to the present invention mounted on a stem of an aerosol container.

FIG. 2 is a perspective view showing an injection nozzle according to the present invention.

FIG. 3 is a sectional view showing another embodiment of the injection nozzle according to the present invention.

FIG. 4 is a comparative view showing an injection state (a view from above).

FIG. 5 is a view showing an injection nozzle according to a conventional example.

[Explanation of symbols]

10 ... Aerosol container, 20 ... Guide member, 30 ... Injection nozzle,

Claims (4)

(57) [Claims] 1. An injection nozzle for an aerosol container joined to a tip of a guide member joined to a stem of an aerosol container, the injection nozzle communicating with a communication hole of the guide member.
Of the communicating hole and a plurality of small cross-sectional areas branched from the communicating hole
And a tip end surface of the injection nozzle has at least two surfaces inclined with respect to the axis of the injection nozzle,
The plurality of small cross-section branch paths are formed parallel to the axis.
An injection nozzle for an aerosol container, characterized in that a part of the tip of the branch passage is opened to the inclined surface. 2. An injection nozzle for an aerosol container joined to the tip of a guide member joined to the stem of the aerosol container, the injection nozzle communicating with a communication hole of the guide member.
Communication hole and two small cross-sectional areas branched from the communication hole
The injection nozzle has a tip end surface having an inclined surface formed symmetrically with respect to the axis of the injection nozzle, and the two small cross-sectional area branch paths are Shaped parallel to the axis
An injection nozzle for an aerosol container, characterized in that a part of a tip of the branch passage is opened to the inclined surface. 3. An injection nozzle for an aerosol container joined to a tip of a guide member joined to a stem of the aerosol container, the injection nozzle communicating with a communication hole of the guide member.
Communication hole and two small cross-sectional areas branched from the communication hole
The injection nozzle has a tip end surface having an inclined surface formed symmetrically with respect to the axis of the injection nozzle, and the two small cross-sectional area branch paths are To the axial direction
Is formed so as to incline outward, and the front end of the branch passage is opened to the inclined surface, respectively, an injection nozzle for an aerosol container. 4. The injection nozzle for an aerosol container according to claim 3, wherein a second injection nozzle is fitted in the opening.