JPH0441944Y2 - - Google Patents

Description

[Detailed explanation of the idea] (Industrial application field) The present invention relates to improvements in aerosol containers.

(Prior art) This type of aerosol container is shown in Fig. 9 (1983-
53703), as shown in Figure 10 (Utility Model Application No. 142806, 1983).

In FIG. 9, an injection valve rod 301 is provided in the upper part of a pressure-resistant container 300 so as to be freely retractable. Further, a cap 302 surrounding the injection valve rod 301 is provided at the upper part of the pressure vessel 300. Inside the cap 302 is an injection nozzle 303 that can be slid horizontally.
is provided. Boss portion 304 of injection nozzle 303
A passage 305 communicating with the nozzle tip side is provided in the nozzle. Additionally, a horizontal groove 306 is formed on the side surface of the boss portion 304.
is provided. On the other hand, a rib 307 is provided on the inner surface of the cap 302.

In the above configuration, the injection nozzle 30 as shown in A
4 is at the rear, the rib 307 is recessed into the horizontal groove 306, so the injection valve rod 301 does not operate even if the injection nozzle 303 is pressurized.

Then, when the injection nozzle 303 is slid as shown in B, the rib 307 is removed from the lateral groove 306 and the injection valve rod 301 is retracted into the passage 305. Therefore, pressing the injection nozzle 303 lowers the injection valve rod 301 and the contents are injected to the outside through the passage 305.

Further, in FIG. 10, 200 is a pressure vessel, and an injection valve rod 201 is provided in the upper part of the pressure vessel 200 so as to be freely retractable. A cap 202 surrounding the injection valve rod 201 is provided at the top of the pressure vessel 200. The injection valve rod 201 has a passage 203.
An injection nozzle 204 is attached.

An ejection button 205 is provided on the top of the cap 202, and an engagement piece 206 is provided on the side surface of the ejection button 205.

Further, a guide hole 207 is provided in the cap 202 in the horizontal direction, and an engaging piece 206 is slidably inserted into the guide hole 207. Furthermore,
An inclined surface 208 is provided on the lower surface of the injection button 205.

In the above configuration, when the injection button 205 is at the rear as shown in A, the injection nozzle 204 is urged upward. Next, press the injection button 205 to B.
When you slide it forward as shown, the injection nozzle 2
04 is pushed down by the inclined surface 208, and the injection valve rod 201 also goes down. As a result, the contents of the passage 20
3 to the outside.

(The problem that the idea aims to solve) However, the above conventional example had the following problem.

The one in FIG. 9 has a configuration in which the injection nozzle 303 itself slides, and the upper end of the injection valve rod 301 is recessed into the passage 305 during injection, so the injection nozzle 303 can be moved backwards after injection. Slide operation is not possible and it is not possible to return to the locked state of A.

Therefore, it is necessary to once lift the injection nozzle 303 upward and remove the injection valve rod 301 from the passage 305, which makes it troublesome to change from the operating state to the locked state.

Furthermore, it is difficult to know how much the injection nozzle 303 must be slid to accurately align the injection valve rod 301 and the passage 305, resulting in poor operability.

In addition, in FIG. 10, at the same time as the injection button 205 is slid, the injection nozzle 203 is activated on the inclined surface 208.
, the sliding resistance of the injection button 205 is large. Therefore, large force is required to operate the injection button 205.

The present invention is intended to solve the above problems, and aims to provide an aerosol container that can transmit the sliding operation of the ejection button with a small force and can accurately stop the ejection button.

(Means for Solving the Problem) In order to achieve the above object, the present invention provides an injection valve rod that operates along the vertical direction and is biased upward, and an injection valve rod that is installed in the upper part of the pressure vessel. In the aerosol container, the aerosol container is provided with a cylindrical cap surrounding the container, an injection nozzle is attached to the injection valve rod, and an injection button is fitted onto the outer periphery of the injection nozzle so as to be slidable in the front and rear directions, at the rear of the injection button, It is characterized by having a rear end that comes into contact with the shoulder of the cap when the injection button is at the rear, and a protrusion that comes into contact with the rear part of the injection nozzle when the injection button is slid forward.

(Function) In the present invention based on the above configuration, when the injection button is at the rear, the rear end of the injection button is in contact with the shoulder of the cap, so even if the injection button is pressed, it does not move downward. , the pressing force cannot be transmitted to the injection nozzle. Therefore, the injection valve rod does not descend, and the contents are not inadvertently injected.

Also, if you slide the injection button forward,
The protrusion comes into contact with the rear part of the injection nozzle and stops. Therefore, when the injection button is pressed, the pressing force is transmitted to the injection valve rod through the injection nozzle, and the injection valve rod is lowered. As a result, the contents within the pressure container are injected to the outside from the injection nozzle.

On the other hand, when the pressure on the injection button is released, the injection valve rod is urged upward, and the injection nozzle and the injection button integrally return to their positions before being pressed. Therefore,
When the injection button is slid rearward, the protrusion of the injection button comes into contact with the inner surface of the cap and stops, and the rear end comes into contact with the shoulder of the cap.

(Example) An example of the present invention will be described below based on the accompanying drawings. FIG. 1 is a plan view of an aerosol container according to a first embodiment of the present invention, and FIGS. 2, 3, and 4 are views taken in the direction of arrow A in FIG. The line partial sectional view, FIG. 5, is a view similar to FIG. 3 showing the container in use.

In the figure, reference numeral 1 denotes a pressure-resistant container whose interior is compressed and filled with an aerosol liquid, and has an annular curled portion 1a formed at its upper end. In addition, pressure vessel 1
At the upper part of the curved portion 1a and approximately at the center thereof, there is an injection valve rod 6 which can be freely operated along the vertical direction of the pressure vessel 1.
is provided. Further, the injection valve rod 6 is urged upward by the elastic force of a known spring (not shown) provided within the pressure vessel 1.

A cylindrical cap 2 is fixed to the upper end of the pressure vessel 1 so as to surround the injection valve rod 6.
This cap 2 has inner and outer cylinder walls 3 and 4 integrally formed in a concentric double structure, and as shown in the figure, the cap 2 has an inner cylinder wall 3 connected to a pressure vessel 1.
It is attached to the upper end of the pressure-resistant container 1 by engaging the outer periphery of the curled portion 1a.

Further, an injection nozzle 5 having a substantially L-shaped cross section is integrally formed at the upper end of the inner cylindrical wall 3 of the cap 2, and is flexible and deformable about a portion a. That is, a cylindrical boss portion 5a extending in the vertical direction is provided at the center, and a cylindrical injection portion 5b extends substantially orthogonally outward from the upper end of the boss portion 5a. A passage 7 is provided extending from the boss portion 5a to the injection portion 5b.

As shown in the figure, an injection valve rod 6 protruding from the top of the pressure vessel 1 is fitted into the passage 7 of the boss portion 5a. The injection valve rod 6 injects the compressed aerosol liquid into the pressure container 1 by moving it downward, and its upper end opens into the passage 7 of the injection nozzle 5. ing.

Incidentally, an injection button 8 is fitted around the outer periphery of the injection nozzle 5 so as to be slidable in the front-rear direction (horizontal direction in FIG. 3).

The injection button 8 includes a pressing part 8c and a cylindrical guide part 8d provided in front of the pressing part 8c, that is, to the left.
and has. The inner diameter of the guide portion 8d is set larger than the outer diameter of the injection portion 5b, and the injection portion 5b is slidably inserted into the guide portion 8d.
The pressing portion 8c has a U-shaped cross section as shown in FIG. 4, and is arranged to be vertically movable into the opening 2d at the upper end of the cap 2.

The injection button 8 is provided with a rear end portion 8a that protrudes toward the rear in the sliding direction, that is, toward the right in the figure. In the locked state in which the injection button 8 is positioned rearward in the sliding direction as shown in FIGS. 1 to 4, the rear end 8a abuts and engages on the shoulder 2a of the cap 2. Further, at the rear of the lower surface of the pressing portion 8c of the injection button 8, a projection 8b that projects downward is provided.

Next, the function of the aerosol container will be explained.

In the state shown in FIGS. 1 to 4, the injection button 8 is at the rear in the sliding direction as described above, and the rear end 8a is engaged with the shoulder 2a of the cap 2 and is in a locked state. Therefore, even if the injection button 8 is pressed, the injection button 8 does not move downward.
The pressing force does not reach the injection nozzle 5. Therefore, the injection valve rod 6 remains biased upward, and accidents such as inadvertent ejection of aerosol liquid can be completely prevented from occurring.

When using the container, slide the injection button 8 forward (to the left in the figure) with your finger as shown in FIG. 5, and the rear end 8a of the injection button 8 and the shoulder of the cap 2 When the engagement with the portion 2a is released, the projection 8b comes into contact with the rear part of the injection nozzle 5, and the injection button 8 stops sliding, and the container enters the so-called open state.

Therefore, if you press the injection button 8 with your finger in the direction of arrow A as shown in the figure, the pressing part 8c will move downward,
The pressing force is transmitted to the injection nozzle 5. Then, the injection nozzle 5 bends around part a and pushes the injection valve rod 6 downward, and the aerosol liquid compressed and filled in the pressure-resistant container 1 passes through the passage 7 and is injected from the end of the injection nozzle 5 in the direction of arrow B in the figure.

On the other hand, when the pressure on the injection button 8 is released, the injection valve rod 6 is urged upward, and accordingly, the injection nozzle 5 and the injection button 8 are also integrally restored to the state before the pressure was pressed. Therefore, if you slide the injection button 8 to the right in the figure and return it to the rear, the injection button 8
Since the protrusion 8b comes into contact with the inner surface of the outer cylinder wall 3 of the cap 2 and stops, and the rear end 8a is engaged with the shoulder 2a, the injection button 8 is prevented from moving.

In the above, the so-called locking and unlocking of the container is made possible only by sliding the injection button 8, so that the structure of the container is simplified and its operation is also facilitated.

Next, a second embodiment of the present invention will be described based on FIGS. 6 to 8. FIG. 6 is a plan view of the aerosol container, FIG. 7 is a partial sectional view taken along the line -- in FIG. 6, and FIG. 8 is a view similar to FIG. 7 showing an injection state.
In these figures, the same elements as those in the first embodiment are given the same reference numerals, and explanations thereof will be omitted.

In the second embodiment as well, an injection nozzle 105 is integrally provided with a cylindrical cap 102, and an injection button 108 is fitted around the outer periphery of the injection nozzle 105 so as to be slidable in the front and rear directions.

The injection button 108 includes a pressing part 110 and a cylindrical guide part 111 provided in front of the pressing part 110. The inner diameter of the guide part 111 is set to be larger than the outer diameter of the injection part 112 of the injection nozzle 105, and the injection part 112 is slidably inserted into the guide part 111.

In addition, the rear part of the injection button 108 in the sliding direction,
That is, the rear end portion 113 is formed to protrude on the right side in the figure. In the locked state in which the injection button 108 is positioned rearward in the sliding direction as shown in FIG. 7, the rear end 113 abuts and engages on the shoulder 114 of the cap 102. Note that a projection 115 that projects downward is provided at the rear of the lower surface of the injection button 108.

When the injection button 108 is slid from the locked state shown in FIG. 7 with a finger as shown in FIG. 8, the protrusion 115 comes into contact with the rear part of the injection nozzle 105 and stops. When pressed in the direction A, the pressing force is transmitted to the injection valve rod 6, which moves downward, and the aerosol liquid compressed and filled into the pressure container 1 is ejected.

In this way, the second embodiment can also obtain the same effects as the first embodiment.

(Effects of the invention) Since the invention is constructed as described above, when the injection button is located at the rear, the rear end is in contact with the shoulder of the cap, so even if the injection button is pressed, it does not move downward. Therefore, even if you press the injection button carelessly, the pressing force will not be transmitted to the injection valve rod.
Prevents contents from spewing out.

Also, if you slide the injection button forward,
The protrusion comes into contact with the rear part of the injection nozzle and stops. Then, when the injection button is pressed, the pressing force is transmitted to the injection valve rod via the injection nozzle, and the contents are injected to the outside.

In this manner, the sliding operation of the injection button and the pressurizing operation on the injection valve rod are performed separately, so that the injection button can be slid with a small force.

Furthermore, when the pressure on the injection button is released, the injection valve rod is urged upward, and both the injection nozzle and the injection button move to their original positions. Therefore, the injection button can be slid backwards as it is,
It becomes locked again.

[Brief explanation of the drawing]

FIG. 1 is a plan view of an aerosol container according to the first embodiment of the present invention, FIGS. 2, 3, and 4 are views taken in the direction of arrow A in FIG.
- Line partial sectional view, Figure 5 shows the third part showing the injection state.
6 is a plan view of the aerosol container according to the second embodiment of the present invention, FIG. 7 is a partial sectional view taken along the line - - in FIG. 6, and FIG.
9A and 9B are front sectional views of the first conventional example, and FIGS. 10 A and B are front sectional views of the second conventional example. Explanation of symbols, 1...Pressure container, 2,102...
Cap, 5,105... Injection nozzle, 6... Injection valve rod, 8,108... Injection button, 2a, 11
4... Shoulder part, 8a, 113... Rear end part, 8b, 1
15... Protrusion.

Claims (1)

[Claims for Utility Model Registration] A device that operates along the vertical direction on the top of the pressure container,
An injection valve rod biased upward and a cylindrical cap surrounding the injection valve rod are provided, an injection nozzle is attached to the injection valve rod, and an injection button is slidable in the front and rear directions on the outer periphery of the injection nozzle. an aerosol container that is fitted onto the outside of the aerosol container, the rear end of the ejection button being in contact with the shoulder of the cap when the ejection button is in the rearward position;
An aerosol container characterized by being provided with a protrusion that comes into contact with a rear part of an injection nozzle when the injection button is slid forward.