JPH10109060A - Discharge container - Google Patents

Abstract

(57) [Summary] (With correction) [Problem] When a cap is not put on for a long time after use, a liquid surface existing in a discharge port is kept in contact with air and dried.
In addition, various germs, dust and dirt are mixed in the air, and when these substances are mixed in the liquid, it becomes unsanitary, and is not preferable especially for cosmetics and foods. In a discharge container for discharging liquid in a liquid storage chamber from a discharge port, the liquid storage chamber and the discharge port communicate with each other through a liquid flow passage, and a slit is formed in the discharge port. A discharge container provided with a set elastic valve 19 and provided with locking means for preventing the elastic valve 19 from dropping from the discharge port.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a discharge container for liquids such as cosmetic emulsion, hand cream, foundation, shampoo for shampoo, rinse, liquid toothpaste, mayonnaise, ketchup, glue, paint and the like. About.

[0002]

2. Description of the Related Art As an example of a discharge container for discharging a liquid in a liquid storage chamber from a discharge port, there is one as shown in FIG. The soft container body 101 that can be pressed and deformed serves as a liquid storage chamber 102 in which liquid is stored. A discharge port 103 is formed on the upper part of the container body 101, and a screw portion 104 is formed on the outer periphery of the discharge port 103. A cap 105 for detachably screwing the screw portion 104 with the cap 105 for preventing the liquid from drying or leaking when not in use. In use, the cap 105 is removed from the container main body 101, and then the container main body 101 is appropriately pressed to discharge the liquid in the liquid storage chamber 102 from the discharge port 103.

[0003]

However, in the above-mentioned prior art, the cap 105 may be forgotten after use. Also, when frequently used, it is troublesome to put on the cap, and the cap 1
05 may not be attached for a long time. In such a case, the surface of the liquid existing in the discharge port portion 103 keeps touching the air. Then, the air dries the liquid by touching the liquid.

[0004] In addition, air contains substances that have an adverse effect on humans, such as various germs, dust and dirt. It goes without saying that if such a substance such as bacterium is mixed into the liquid, it becomes an unsanitary liquid. Occasionally, mold and discoloration occur, resulting in a very unsanitary liquid. Such unsanitary liquids are very undesirable, especially for cosmetics and edibles.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and is directed to a discharge container for discharging a liquid in a liquid storage chamber from a discharge port. The discharge port is communicated with the liquid flow passage, an elastic valve having a slit formed in the discharge port is disposed, and locking means for preventing the elastic valve from dropping from the discharge port is provided. The gist is that

[0006]

In use, the slit of the elastic valve expands due to the pressure of the liquid in the liquid storage chamber to form a discharge port. When not in use, the slit (discharge port) is shielded by the elastic restoring force of the elastic valve.

[0007]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. The container main body 1 contains a soft bag 3 forming a liquid chamber (liquid storage chamber) 2 inside. Although the interior of the container body 1 may be directly used as the liquid chamber 2, the use of the soft bag body 3 is an easy means since it shrinks in accordance with consumption of the contained liquid and can prevent the intrusion of outside air. The soft bag 3 is attached to the lower peripheral wall of the mouth member 4 attached to the opening of the container body 1 by a heat seal or the like so as not to leak liquid. Mouth member 4
Has a piston 5 inside. Illustrated piston 5
Has a separate piston body 6 fixed thereto in order to exhibit a suitable elasticity and to secure a large diameter, but may be an integrally molded product. In addition, piston 5
Is provided with a valve 7 which can be opened upward in the drawing.
The valve 7 serves as an outlet for the liquid from an inner hole 8 communicating with the liquid chamber 2.

A cylinder 10 urged upward by a resilient body 9 is attached to the piston 5 so as to be slidable in a liquid-tight manner. An elastic annular portion 11 provided solely on the outer peripheral wall of the piston body 6 serves as a hermetically sliding contact portion with the inner peripheral wall of the inner hole 12 of the cylinder 10. Also, the cylinder
Like the valve 7, the valve 10 is provided with a valve 13 which can be opened upward in the drawing. The valve 13 serves as an outlet for the liquid that has come out of the valve 7 into the inner hole 12.

A nozzle body 1 is provided above the cylinder 10.
4 is attached. The illustrated nozzle body 14 has a liquid flow passage 15 for discharging the liquid coming out of the valve 13 to the outside of the container 1, and a crown 16 integrally formed at the top of the nozzle body 4. I have. The liquid flow passage 15 is L-shaped inside the nozzle body 14, and the vicinity of the end opposite to the valve 13 is formed in a pipe shape (pipe portion 17). That is, the gap 18 is provided between the pipe-shaped liquid flow passage portion (pipe-shaped portion 17) and the crown portion 16.
Is formed, and the gap 18 is formed in a circular shape inside the nozzle body 14. An elastic valve 19 is fitted on the pipe-shaped portion 17 of the liquid flow passage 15. The elastic valve 19 has a cylindrical portion 20 and a bottom portion 21. A locking projection 20 a is formed at the rear end (the side opposite to the bottom 21) of the cylindrical portion 20.
Or is in contact with a cylindrical locking member 22 formed integrally with the nozzle body 14. This locking projection 20
The contact between the a and the locking member 22 prevents the elastic valve 19 from falling off from the pipe-shaped portion 17. In addition, the bottom 21
Is provided with a slit 21a which is opened by liquid pressure and the liquid is discharged.
Are formed. This slit 21a becomes the discharge port of the present invention. In addition, the slit 21a may be simply linear, may be cross-shaped, or may be Y-shaped.

The vicinity of the tip of the pipe-like portion 17 is as follows:
It is a reduced diameter portion 17a. This is a means for preventing the slit 21a from constantly expanding due to variations in the outer diameter of the pipe-shaped portion 17 and the inner diameter of the elastic valve 19. A gap 23 is also formed between the cylindrical locking member 22 and the elastic valve 19. When the liquid is discharged from the slit 21a, the slit 21a does not hinder the opening of the slit 21a.
a can be easily expanded, and the liquid can be discharged with a light force.

Next, specific examples of the elastic valve include silicone rubber, nitrile rubber, acrylic rubber, fluorine rubber, natural rubber, chloroprene rubber, butyl rubber, neoprene rubber, SBR, NBR, elastomer, and soft polyethylene. Rubber-like elastic material, PET, polyethylene,
A film-like soft member having a single-layer structure such as polyvinyl chloride and nylon can be used. The film-like soft member is obtained by sticking polyethylene on the lower surface of PET or sticking polypropylene on the lower surface of PET. For example, a two-layer structure may be used. In addition, it has a three-layer structure, such as one in which PET is attached to the upper surface of an aluminum foil and polyethylene is attached to the lower surface, or one in which PET is attached to the upper surface of the aluminum foil and polypropylene is attached to the lower surface. May be. Further, PET coated with vinylidene chloride
Polyethylene-coated on the lower surface of PET, polypropylene coated on the lower surface of PET coated with vinylidene chloride, PET bonded on the lower surface of PET coated with silicon oxide, silicon-coated with silicon oxide A material obtained by adhering polypropylene to the lower surface of the coated PET or a material obtained by coating a hot-melt resin on the lower surface of the PET may be used. In short, this elastic valve can also be appropriately selected depending on the liquid used.

Next, an example of use will be described. Cap 1
When the cylinder 6 is pressed, the cylinder 10 slides downward in the drawing against the resilience of the resilient body 9, and at this time, the valve 13 is opened and the nozzle body 14 is inserted through the inner hole 12 of the cylinder 10. The internal pressure is increased by the liquid flowing out of the liquid flow path 15 of the elastic valve 1.
Nine slits 21a are expanded to form a discharge port, and the liquid is discharged from the discharge port. When the pressing of the crown 16 is released, the slit 21a is returned and shielded by its own restoring force of the elastic valve 19, and the cylinder 10 slides upward in the drawing by the elastic force of the elastic body 9 ( return)
Then, at this time, the valve 7 is opened and the liquid flows out from the inner hole 8 of the piston 5 to the inner hole 12 of the cylinder 10, and the next use preparation is made. The same applies to the second example described later, but since the elastic valve is covered by the nozzle body, the crown can be pressed without touching the elastic valve, which is hygienic and the elastic valve No external force is applied, and therefore, deterioration over time can be prevented as much as possible.

There are various other ways. The example shown in FIGS. 3 and 4 is a second example of the present invention. The description of the same configuration as that of the above example is omitted. The nozzle body 24 is attached to the upper part of the cylinder-10. The illustrated nozzle body 24
Is composed of a head crown 25 formed separately or integrally, and an L-shaped pipe body 29 one of which is press-fitted into the liquid flow passage 27 of the nozzle member 26 and the other is located at the mouth 28. . An elastic valve 30 is located at the tip of the pipe body 29, and the elastic valve 30 is fixed to the pipe body 29 by a holding ring 31. The elastic valve 3
0 has a slit 32 formed at a central portion thereof to expand by hydraulic pressure. When the slit 32 expands, a discharge port is formed, and the liquid is discharged.

A circular convex portion 33 is formed at the center of the elastic valve 30, and the pressing ring 3
The surface of the inner flange portion 34 and the front end surface 34a are the same. The elastic valve 30 is fixed so as to be sandwiched between the front end surface of the pipe body 29 and the rear end surface 34b of the inner flange portion 34 of the holding ring 31, and serves as a locking means of the present invention. I have. The outer diameter of the base of the elastic valve 30 is smaller than the inner diameter of the pressing ring 31, and the outer diameter of the convex portion 33 of the elastic valve 30 is smaller than the inner diameter of the inner flange 34. That is, the outer periphery of the elastic valve 30 is open, so that no external force is transmitted. This is for facilitating the expansion of the slit 22 by the liquid pressure and discharging the liquid with a light force, as in the previous example.

Next, some specific examples of the material of the pipe body will be described. The pipe body is made of a metal material such as stainless steel, carbon steel, copper alloy (phosphor bronze), or a coating of a resin such as polyamide, vinyl chloride, polyethylene, or polyurethane on the surface of these metal materials, or , POM, ABS, PP, PET, PE and the like. The point is that a material that is not affected by the liquid to be used may be appropriately selected.

Next, an example of use will be described. Cap 25
Is pressed, the cylinder 10 slides downward in the drawing against the resilience of the resilient body 9, and at this time, the valve 13 is opened and the nozzle member 26 is moved from the inside of the inner hole 12 of the cylinder 10. Due to the liquid flowing out of the liquid flow passage 27 and the pipe body 29, the internal pressure is increased, the slit 32 of the elastic valve 30 is expanded, a discharge port is formed, and the liquid is discharged from the discharge port.
When the pressing of the crown 25 is released, the slit 32 returns and is shielded by its own restoring force of the elastic valve 30, and the cylinder 10 slides upward (returns) in the drawing by the elastic force of the elastic body 9. At this time, the valve 7 is opened and the liquid flows out from the inner hole 8 of the piston 5 to the inner hole 12 of the cylinder 10, so that the next use preparation is made. In addition, this second
In the example, the elastic body 9 is arranged outside the inner hole 12. By preventing the elastic body 9 from touching the liquid,
This prevented liquid contamination.

The example shown in FIG. 5 is an example in which the pressing ring 31 of the second example is not used, and the cost is reduced. The elastic valve 35 has a cylindrical portion 36 and a bottom portion 37 as in the first example, but a large-diameter portion 36a is formed on the outer peripheral surface of the cylindrical portion 36, and a circumferential rib 36b is formed on the inner peripheral surface portion. Are formed. An inner peripheral flange portion 37 that comes into contact with the front end surface of the large-diameter portion 36a of the cylindrical portion 36 is attached to the crown 25.
Are formed. This prevents the elastic valve 29 from dropping off the pipe body 29 when excessive hydraulic pressure is generated. still,
Normally, the front end surface of the large diameter portion 36a does not contact the inner peripheral flange portion 37. This is so as not to obstruct the opening and closing of the slit 38 from which the liquid is discharged. However, the elastic valve 35 and the pipe body 29 are prevented from falling off by the engagement between the circumferential rib 36b and the circumferential recess 39 formed on the outer periphery of the pipe body 29.

The nozzle and the elastic valve of the first and second examples may be attached to the discharge port of the container shown in the prior art. Although it is not possible to discharge a fixed amount of liquid as compared with the above various examples, the user can vary the discharge amount according to his or her preference, and a valve mechanism for discharging a fixed amount can be omitted, so that it is manufactured at low cost. Has the advantage that it can be

[0019]

According to the present invention, there is provided a discharge container for discharging a liquid in a liquid storage chamber from a discharge port, wherein the liquid storage chamber and the discharge port communicate with each other through a liquid flow path, and the discharge container is connected to the discharge port. An elastic valve having a slit formed at the outlet portion is arranged, and a locking means for preventing the elastic valve from dropping from the discharge port portion is provided. Air does not enter, preventing the liquid from drying.
It is also hygienic.

[Brief description of the drawings]

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

FIG. 2 is an enlarged longitudinal sectional view of a main part of FIG.

FIG. 3 is a longitudinal sectional view showing a second example.

FIG. 4 is an enlarged vertical sectional view of a main part of FIG. 3;

FIG. 5 is an enlarged longitudinal sectional view of a main part showing a third example.

FIG. 6 is a longitudinal sectional view showing a conventional technique.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Container main body 2 Liquid chamber (liquid storage chamber) 3 Soft bag body 4 Mouth member 5 Piston 6 Piston body 7 Valve 8 Inner hole 9 Repellent body 10 Cylinder 11 Elastic annular part 12 Inner hole 13 Valve 14 Nozzle body 15 Liquid Flow passage 16 Head cap part 17 Pipe-shaped part 18 Gap 19 Elastic valve 20 Cylindrical part 20a Locking projection 21 Bottom part 21a Slit (discharge port part) 22 Locking member 23 Gap 24 Nozzle body 25 Head cap 26 Nozzle member 27 Liquid flow path 28 mouth part 29 pipe body 30 elastic valve 31 press ring 32 slit (discharge port part) 33 convex part 34 inner flange part 35 elastic valve 36 cylinder part 37 inner peripheral flange part 38 slit (discharge port part)

Claims (1)

[Claims] 1. A discharge container for discharging liquid in a liquid storage chamber from a discharge port, wherein the liquid storage chamber and the discharge port communicate with each other through a liquid flow passage, and a slit is formed in the discharge port. A discharge container provided with an elastic valve, and a locking means for preventing the elastic valve from dropping from the discharge port.