JPH0536529Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to an aerosol sprayer, and in particular, the main parts are made of synthetic resin.

[Prior Art] Aerosol containers are designed so that the medicinal solution in the container is ejected by compressed gas sealed in the container, and for this reason, the container itself is made of metal and has a valve housing on the bottom surface in advance at the upper end of the main body. It is usually made in one piece by connecting metal top plates with shims together by seaming.

[Problem that the invention attempts to solve]

This metal container requires time and effort to process and assemble the materials, and it would be very convenient if it could be made from synthetic resin.However, if each part of the container was made from synthetic resin, the connections between each part It is difficult to maintain sufficient strength.

[Means for solving problems]

In contrast, in this invention, the main body of the container and the top plate are made of synthetic resin, and a metal tube is fitted over them to connect them to each other reliably and easily.

[Example of idea]

An example of this invention will be explained with reference to the drawings.
In the overall exploded view in Figure 1 and the vertical cross-sectional view in Figure 2, 1 is the main body of the container, which is made of a single piece of synthetic resin and has four hook-shaped hooks on the upper edge circumferential surface, dividing the circumference equally. A recessed portion 2... is provided.

3 is a top plate member, which is also made of synthetic resin, and has a valve housing 4 connected to the bottom surface.
After a spring 5, a stem 6, and a valve plate 7 made of a rubber plate are sequentially inserted into the valve body, a presser plate 8 is fitted from above. A ring-shaped engagement protrusion 9 having a notch at the rear end is erected on the upper surface of the presser plate 8 .

Next, reference numeral 10 is a metal cylinder for connecting and fixing the container main body 1 and the top plate member 3, and is a thin metal cylinder whose upper end is narrowed to form a small diameter part 11, and four protruding parts are formed in advance on the lower edge. The folded pieces 12 are formed by bending and overlapping the projecting pieces on the inner peripheral surface.

Reference numeral 13 is a synthetic resin push button to be attached to the upper end of the stem 6, which has an injection port 14 on the front surface, and the stem 6 is inserted into a vertical hole provided in communication with the injection port, and the stem 6 is inserted into the vertical hole. It is rotatably mounted. As is clear from FIG. 2, inside the push button 13, a ring-shaped recessed hole 15 is provided surrounding the vertical hole, and a deep hole 16 is formed at the rear end of this recessed hole.

To assemble these components shown in FIG. 1, a top plate member 3 is placed on the main body 1 of the container, in which a stem etc. are previously assembled, a presser plate 8 is fitted, and a liquid suction pipe 17 is attached to the lower end. After the metal cylinder 10 is placed on a rack via the packing 18, the folded pieces 12 attached to the inner surface of the metal tube 10 are placed in the groove 19 on the circumferential surface of the top plate member 3.
After fitting the folded pieces 12 from above so as to pass through the inside and position the folded pieces 12 in the hook-shaped recesses 2 of the container main body 1, rotate the metal cylinder 10 slightly and insert the folded pieces 12... 12... are respectively fixed in the hook-shaped recesses 2.... Then, the upper end edge of the top plate member 3 is restrained by the upper end small diameter portion 11 of the metal cylinder 10, and thus the top plate member 3
The container main body 1 is brought into close contact with the packing 18.

Next, the push button 13 is inserted into the vertical hole of the stem 6.
, and press fit the injection port 14 toward the front.

[Action/Effect]

This device has the above-mentioned structure, and when the push button 13 is pressed down like the conventional device, the valve plate 7 is deformed through the stem 6, and the chemical liquid passes through the liquid suction pipe 17, passes through the stem 6, and enters the injection port 14. However, in this invention, as mentioned above,
The container main body 1 and the top plate member 3, each made of synthetic resin, are tightly connected to each other by a metal cylinder 10, so that the sealability is the same as that of a conventional metal container, and moreover, the metal cylinder 10 and By slightly rotating the container main body 1 relative to each other, the entire container can be separated into two upper and lower parts, making it easy to replenish the internal liquid and pressurized gas. Further, since the push button 13 is mounted on the top plate member 3 by engaging the recessed hole 15 with the engagement protrusion 9 and is surrounded by the mouth edge of the metal cylinder 10, the stem is protected against external forces in the lateral direction. The push button 13 cannot be pushed down unless there is a risk of breaking the push button 6 and the button is slightly rotated during use so that the deep hole 16 and the notch of the protrusion 9 of the top plate member 3 are aligned. This is safe, and the concave hole 15 and the upper end of the engagement protrusion 9 act as a stopper to prevent the stem 6 from being forced down.

As described above, this invention has many advantages, such as being able to easily assemble the members made of synthetic resin into one body simply via a metal tube, thereby reducing the manufacturing process.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view showing each part, and FIG. 2 is a side sectional view. DESCRIPTION OF SYMBOLS 1... Container main body, 2... Hook-shaped recess, 3... Top plate member, 4... Valve housing, 6... Stem,
7... Valve plate, 8... Holding plate, 9... Engaging protrusion, 1
0...Metal tube, 11...Small diameter portion, 12...Folded piece, 13...Push button, 14...Injection port, 16...
...Deep hole.

Claims (1)

[Scope of Claim for Utility Model Registration] In an aerosol container made of synthetic resin, a top plate member 3 made of synthetic resin is mounted on the top opening of the container main body 1, and a valve housing 4 integrally connected to the bottom surface of this top plate member 3 is provided. While inserting the stem 6 so that it can be raised and lowered,
The upper end is narrowed to a small diameter, and a folded piece 12 is attached to the inner surface of the lower end.
A metal cylinder 10 with ... attached thereto is fitted, the folded pieces 12 ... are engaged with hook-shaped recesses 2 ... carved in the upper edge of the container main body 1 and connected to each other, and a top plate 3 is fitted. A presser plate 8 having a ring-shaped engagement protrusion 9 with a notch partially erected on the upper surface is fitted through the valve plate 7, and furthermore, a push button 13 is rotatably attached to the upper end of the stem 6, and the above-mentioned A synthetic resin aerosol container, characterized in that the container is connected so as to be able to be pushed down only at a predetermined position via an engaging protrusion.