JP2597985Y2 - Ejector - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ejector for cosmetic use, medicinal use and the like. Specifically, a pump is attached to the mouth of the container, and when the push button is pressed, the contents in the cylinder are discharged, and when the hand is released from the push button, it is returned to return the contents in the container to the cylinder. It relates to the ejector sucking up inside. More specifically, the present invention can be applied to such an ejector that uses an elastic container that deforms as the content is reduced.

[0002]

2. Description of the Related Art Conventionally, for example, as shown in FIG. 7, an elastic container 1 which is deformed as its contents are reduced is used in a cosmetic spouting device, and an annular packing 2 is provided at its mouth 1a. In some cases, the pump 3 is screwed through to seal the outside and the inside of the mouth 1a.

[0003] In such an ejector, the pump 3
When the push button 4 of the pump 3 is pushed in, the cream (not shown) in the cylinder 5 of the pump 3 is discharged, and when the hand is released from the push button 4, the cream is returned to release the cream in the elastic container 1 into the cylinder 5. Suck up inside. Then, the elastic container 1 is gradually contracted and deformed as the contents are reduced by use.

[0004]

By the way, in such a conventional ejector, if the screw of the pump 3 is loosened to the elastic container 1 by mistake before the cream is used up,
The compression of the packing 2 is released, and the outside communicates with the inside of the mouth 1a. Then, air enters from the outside and the elastic container 1 expands and recovers. As a result, when the pump is screwed and used again, there is a problem that the ejection of the cream becomes defective or impossible, and the quality of the cream is reduced.

Therefore, an object of the present invention is to provide an ejector using an elastic container which is deformed as the contents are reduced, even if the screw of the pump is loosened with respect to the elastic container, air enters the container. There is not to be.

[0006]

For this purpose, the present invention has the following features.
An elastic container 10 such as a tube that is deformed as the content is reduced is used. The pump 11 is attached to the mouth 10b of the container, and when the push button 26 of the pump 11 is pressed down, the content in the cylinder 22 of the pump 11 is pressed. And when the hand is released from the push button 26, the ejector returns to release the contents in the elastic container 10 into the cylinder 22.
An elastic member 12 that is compressed between the mouth portion 10b and seals the outside and the inside of the mouth portion 10b when the
The elastic member 12 includes a check valve 12d which is normally closed, closes the mouth 10b, and opens when the hand is released from the push button 26.

According to a second aspect of the present invention, an elastic container 10 such as a tube which is deformed with a decrease in the contents is used, and a pump 11 is attached to a mouth 10b thereof, as shown in the following embodiment. When the push button 26 of the pump 11 is pushed in, the contents in the cylinder 22 of the pump 11 are discharged, and when the hand is released from the push button 26, it is restored, and the check valve 12d of the pump 11 is turned off. Open the contents of the elastic container 10 and remove the contents of the cylinder 22
The check valve 12d is supported by an elastic member 12, and the elastic member 12 is
b, and when the pump body 11A is screwed to the mouth 10b, the elastic member 12 is compressed to seal the outside and the inside of the mouth, and communicates with the inside of the container 10 via the check valve 12d. It is characterized in that a cylinder chamber 21 is formed.

[0008]

According to the first aspect, when the screw of the pump 11 to the elastic container 10 is loosened, the compression of the elastic member 12 is released, and the outside and the inside of the mouth 10b communicate. However, at this time, air does not enter the elastic container 10 because the check valve 12d is closed to close the opening 10b.

According to the second aspect, the elastic container 10
When the screwing of the pump body 11A is loosened, the compression of the elastic member 12 is released, and the outside communicates with the inside of the cylinder chamber 21. However, at this time, since the check valve 12d supported by the elastic member 12 is closed to close the opening 10b, no air enters the elastic container 10.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a vertical cross-sectional view of a cosmetic ejector according to an embodiment of the present invention in an unused state.
This spouter has a pump 11 mounted on an upper part of an elastic container 10.

The elastic container 10 is formed in a tubular shape with an elastic material such as resin or rubber and has a lower portion closed, and an upper portion provided with an upper portion 10b projecting upward through a shoulder portion 10a at the center. A screw is provided on the outer periphery of 10b. Then, a cosmetic cream (not shown) is stored in the elastic container 10.

An elastic member 12 is provided in the mouth 10b of the elastic container 10. The elastic member 12 is made of an elastic material such as resin or rubber into a cylindrical shape, and has a bent portion 12a
A flange portion 12b is provided through the opening, a large-diameter hole portion 12c is provided in the lower portion from the lower end, and a check valve 12d is provided immediately above the hole. The check valve 12d has a circular plate shape, is provided integrally with the elastic member 12 through a thin connecting portion 12e, and is mounted on the ring tube 13 by press-fitting the ring tube 13 into the enlarged diameter hole portion 12c. It becomes. Then, the elastic member 12 is press-fitted into the mouth 10b, and the flange 1 is placed on the mouth 10b.
2b, and the mouth 10b is closed by the check valve 12d.

On the other hand, the pump 11 has a holder 15. The holder 15 integrally forms the outer cylindrical portion 15a, the bottomed inner cylindrical portion 15b, the downwardly directed cylindrical portion 15c, and the upwardly directed cylindrical portion 15d from a resin material. The bottomed inner cylindrical portion 15b
Is formed downward from the upper end of the outer cylindrical portion 15a, and has an upward concave portion 15e therein. The downward cylinder 15c
Is provided with a smaller diameter than the bottomed inner cylindrical portion 15b and downward from the bottom portion 15f. The upwardly directed tubular portion 15d has a smaller diameter than the downwardly directed tubular portion 15c, and is provided upward from the bottom 15f of the bottomed inner tubular portion 15b toward the inside of the upwardly recessed portion 15e. The upward cylindrical portion 15d has a top 15g.
And a through hole 15h is made at the center thereof.

In the through hole 15h, the ejection pipe 1 is inserted from below.
8 and a push rod 19 into the ejection pipe 18 thereof.
The ejection pipe 18 is an elongated hollow tube, and is provided with an upper seal portion 18a which is opened outward at an upper end and a flange-shaped lower seal portion 18b is provided at an outer periphery of a lower end portion. The push rod 19
Is a small-diameter shaft, provided with a screw portion 19a on the upper portion, and an inclined portion 19b and an enlarged portion 19c having a gradually increasing diameter on the lower portion.
Are sequentially formed integrally.

Then, the lower ends of the ejection pipe 18 and the push rod 19 are inserted into the cylinder chamber 21 so that the upward cylindrical portion 15 d
The cylinder 22 is put into the inside from below. The cylinder 22
Is a conical valve seat having a flange 22b at the top, a step 22a in the middle to reduce the diameter downward, a suction hole 22c at the bottom, and a gradually decreasing diameter above the suction hole 22c. 22d is formed. The conical valve member 20 is mounted on the conical valve seat 22d. The conical valve member 20
Is provided so as to be vertically movable by inserting a lower portion into the suction hole 22c. Then, the flange 22b is hung on the projection 15i projecting inward from the inner surface of the upward cylinder 15d, and the cylinder 22 is fixed in the upward cylinder 15d.

Then, the top 1 of the upward cylindrical portion 15d
The compression coil spring 25 is put on 5 g, and the push button 26 is attached to the upper part of the push rod 19. The push button 26 is provided with an enlarged-diameter tube portion 26b at the lower end of the outer tube portion 26a.
The inner cylindrical portion 26c is integrally formed concentrically with a, and a downward annular concave portion 26d is formed therebetween, and a tube portion 26e and a rib 26f are formed in a radial direction on an upper portion thereof, and the inside thereof is formed inside the tube portion 26e. Forms an ejection passage 26g connected to the inside of the inner cylindrical portion 26c. And in the ejection passage 26g,
A nozzle member 27 is provided.

Then, the enlarged diameter cylindrical portion 26b of the push button 26 is inserted into the upward concave portion 15e of the holder 15, and the upper end of the compression coil spring 25 is inserted into the annular concave portion 26d. The compression coil spring 25 is compressed by screwing the button 26. At this time, the ejection pipe 18
Is inserted into the inner cylindrical portion 26c, and the upper seal portion 18a is elastically pressed against the inner periphery of the inner cylindrical portion 26c.
And the inside of the ejection pipe 18.

The outer cylindrical portion 15a of the holder 15
The shoulder 10a of the elastic container 10 is put in the inside, and the downwardly facing tubular portion 15c is screwed around the outer periphery of the mouth portion 10b.
1 is attached to an elastic container 10. The flange portion 12b of the elastic member 12 is provided at the bottom 15f of the bottomed inner cylindrical portion 15b.
And the bent portion 12a of the elastic member 12 is compressed by the step 22a of the cylinder
b. Then, the check valve 12d is closed to close the opening 10b, and the valve member 20 is closed to shut off the communication between the inside of the opening 10b and the inside of the cylinder chamber 21.

When the ejector constructed as described above is used, when a finger is put on the push button 26 and pushed down against the compression coil spring 25, the push rod 19 is lowered, and the lower end of the eject pipe and the inclined portion 19b are connected. A gap is formed between the cylinder chamber 21 and the jet pipe 18 as shown in FIG.
Then, the pressure in the cylinder chamber 21 is increased, and the cream in the cylinder chamber 21 flows through the ejection pipe 18 into the ejection passage 26 g due to the increase in the pressure, and is discharged from the tip of the nozzle member 27.

On the other hand, when the hand is released from the push button 26 to release the push, the push button 26 and the push rod 19 are pushed up by the compression coil spring 25. And, as shown in FIG.
The inclined portion 19b of the push rod 19 is brought into contact with the lower end of the ejection pipe 18 to cut off communication between the inside of the cylinder chamber 21 and the ejection pipe 18, and pushes up the ejection pipe 18 together. Then
The pressure in the cylinder chamber 21 becomes negative, the valve member 20 is opened, and the check valve 12 d is opened to suck up the cream in the elastic container 10 into the cylinder chamber 21. then,
It returns to the original state shown in FIG.

Then, the elastic container 10 is contracted and deformed with the decrease of the cream due to the use of the jetting device.

By the way, if the screw of the pump 11 is erroneously loosened to the elastic container 10 before the cosmetic cream of the ejector is completely used, the bent portion 12a of the elastic member 12 and the flange 1
The compression of 2b is released and the outside 10
The inside of b communicates. However, at this time, air does not enter the elastic container 10 because the check valve 12d is closed to close the opening 10b.

In the illustrated embodiment, the pump 11 is screwed to the mouth 10b of the elastic container 10. But,
As shown in FIG. 4, the pump body 11A is constituted by omitting the conical valve member 20, and the pump body 11A is connected to the mouth 10b.
It is good also as a structure attached to. Then, when the pump body 11A is screwed to the mouth 10b, the cylinder chamber 21 communicating with the inside of the elastic container 10 via the check valve 12d may be formed.

In the illustrated embodiment, the elastic member 12 and the check valve 12d are integrally formed of the same material. However, as shown in FIGS. 5 and 6, the elastic member 12 and the check valve 12d may be provided separately. The elastic member 12 shown in FIG. 5 is formed in a bottomed cylindrical shape, and the step 1
2g is provided, a mounting hole 12h is formed in the center of the bottom, and a plurality of communication holes 12i are formed therearound. on the other hand,
The check valve 30 has a thin flange portion 30b on the upper portion of the shaft portion 30a.
And an enlarged portion 30c is provided at the lower end. Then, the check valve 30 is inserted into the elastic member 12 and the shaft portion 30a is attached to the mounting hole 12.
h, the flange-shaped portion 30b is placed on the step 12g, and the enlarged portion 3
0c is hooked on the lower edge of the mounting hole 12h. Then, as described above, it is always closed and the mouth 10 of the elastic container 10 is closed.
When the inside of the cylinder chamber 22 becomes a negative pressure, the flange 30b is deformed to a position indicated by a dotted line in the figure to open the mouth 10b.

The elastic member 12 shown in FIG. 6 is formed in a cylindrical shape, and is provided with an axial groove 12k on the inner periphery at the lower end. On the other hand, the check valve 31 is formed in a thin, upward opening cap shape. Then, it is press-fitted into the lower end of the elastic member 12 from below, and the groove 12 k and the elastic member 1 are formed around the check valve 31.
The communication with the inside of 2 is cut off. Then, in the same manner as described above, it is normally closed to close the opening 10b of the elastic member 10, and when the inside of the cylinder chamber 22 becomes a negative pressure, the outer periphery of the check valve 31 becomes inward as shown by a dotted line in the drawing. Then, the upper portion of the elastic member 12 communicates with the inside of the groove portion 12k to open the mouth portion 10b.

[0026]

As described above, according to the present invention, even if the screw of the pump or the pump body to the elastic container is loosened, the check valve is closed and the mouth is closed, so that the air is filled in the elastic container. Will not enter. Therefore, it is possible to prevent the ejection of the contents in the elastic container from becoming defective or impossible, or the quality of the contents from being deteriorated.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a main part of an ejector according to an embodiment of the present invention in an unused state.

FIG. 2 is a vertical sectional view when a finger is put on the push button and pushed down.

FIG. 3 is a longitudinal sectional view when a finger is released from the push button.

FIG. 4 is a longitudinal sectional view of a main part of an ejector according to another embodiment of the present invention.

FIG. 5 is a longitudinal sectional view showing another example of the check valve structure provided in the ejector of the present invention.

FIG. 6 is a longitudinal sectional view showing another example of the check valve structure.

FIG. 7 is a vertical cross-sectional view when a conventional ejector is not used.

[Explanation of symbols]

 Reference Signs List 10 elastic container 10b mouth 11 pump 11A pump body 12 elastic member 12d check valve 22 cylinder

Claims (2)

(57) [Scope of request for utility model registration] 1. An elastic container which deforms with a decrease in the contents is used, a pump is attached to the mouth of the container, and when the push button of the pump is pressed, the contents in the cylinder of the pump are discharged. When the hand is released from the push button, the ejector recovers the content in the elastic container and sucks the contents in the elastic container into the cylinder, and is compressed between the mouth and the mouth when a pump is screwed into the mouth. An ejector comprising: an elastic member provided with an elastic member for sealing the outside and the inside of a mouth; and a check valve provided on the elastic member, which is normally closed to close the mouth and open when the hand is released from the push button. 2. An elastic container which is deformed as the contents are reduced, a pump is attached to the mouth of the container, and when a push button of the pump is pressed, the contents in the cylinder of the pump are discharged. When the hand is released from the push button, it is restored, the check valve of the pump is opened, and the check valve is supported by an elastic member in an ejector that sucks the contents in the elastic container into the cylinder. When an elastic member is attached to the mouth, and when the pump body is screwed to the mouth, the elastic member is compressed to seal the outside and the inside of the mouth, and the inside of the elastic container through the check valve. An injector that forms a communicating cylinder chamber.