JPH1170963A - Discharge bottle - Google Patents

Abstract

(57) [Summary] [Problem] Although filtered air enters a container, a hygienic liquid can be maintained for a long time even when used,
There was a slight problem with the mounting position of the filter. That is,
If the liquid used is oily or has a high viscosity, the liquid adheres to the hydrophobic filter,
Clogging will occur. The clogging prevents the air from entering the container, leaving the container crushed, resulting in instability of installation after use, and the collapsed state during the next use. Pressing is performed as it is, and it is difficult to press. 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. An elastic valve is arranged, and the liquid storage chamber and the outside are communicated with each other by an air exchange path, and a filter is interposed in an intermediate portion of the air exchange path, and further, between the filter and the liquid storage chamber. Is a discharge container provided with an air inflow valve that expands only on the side of the liquid storage chamber.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lotion, an o-decolon, a hair styling agent, a cosmetic emulsion, a hand cream, a foundation, a shampoo for shampoo, a rinse, a liquid toothpaste,
The present invention relates to a container for discharging liquid such as mayonnaise, ketchup, glue, and paint.

[0002]

2. Description of the Related Art Japanese Patent Application Laid-Open (JP-A) No. 58-78661 discloses an example of a discharge container for discharging liquid in a liquid storage chamber from a discharge port. The claims of that publication describe "a sterile solution discharge and aeration device for use with a deformable container for storing a sterile solution, comprising a body having a top and an integral side wall. The side wall is configured to easily connect the main body, the side wall and the top constitute a space through which fluid passes through the container, and the top is provided with a fluid ejection means, and the ejection means is provided with a solution. There is an outlet for discharging the solution, and the ejection means is provided with a check valve for discharging the solution from the outlet without allowing air to flow into the container, and is provided at the top so as to be in fluid communication with the space. Inlet means, the inlet means having an inlet and a sterile filter for treating air passing therethrough, the filter comprising a hydrophobic membrane, wherein the membrane to be treated passes air therethrough Allowed to enter the container Suruga, the solution from the vessel is described as sterile container liquid release and distribution device. Characterized by being adapted to prevent "passing through the thin film.

In other words, a liquid outlet and an air intake are separately provided, and a hydrophobic filter is interposed in the air intake to filter air entering the container and thereby prevent contamination of the liquid. Is what you are doing. In use, the cap is removed from the container, and then the container is pressed appropriately to discharge the liquid from the outlet. Then, after the discharge is completed, if the pressure on the container is released,
The same amount of air as the discharged amount is filtered through a hydrophobic filter and enters the container.

[0004]

However, in the above-mentioned prior art, since the filtered air enters the container, a sanitary liquid can be maintained for a long period of time even when used. -There was a slight problem with the mounting position of-.
That is, if the liquid used is oily or has a high viscosity, the liquid adheres to the hydrophobic filter and clogging occurs. And the clogging prevents air from entering the container,
The container will remain in a crushed state, and there will be no stability in installation after use, and the next use will be pressed in the crushed state, making it difficult to press, making you feel uncomfortable Was something.

[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 communicates with the liquid flow path, and an elastic valve having a slit formed in the discharge port is disposed.The liquid storage chamber communicates with the outside through an air exchange path, and the air exchange is performed. The gist is that a filter is interposed in the middle of the passage, and an air inflow valve that expands only on the side of the liquid storage chamber is disposed between the filter and the liquid storage chamber.

[0006]

In use, the slit of the elastic valve is expanded by the pressure of the liquid in the liquid storage chamber, and the liquid is discharged. When the discharge is completed, the air enters the liquid storage chamber via the filter and the air inflow valve.

[0007]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. The inside of the container body 1 is a liquid chamber (liquid storage chamber) 2 for storing liquid. A mouth member 3 is attached to the upper part of the container body 1 by press fitting or the like. A circular recess 4 is formed inside the upper portion of the mouth member 3, and four vertical holes 5 penetrating downward from the recess 4 are formed. The four vertical holes 5 are connected by a horizontal groove 6 at an upper end opening (see FIG. 2). Further, a discharge port member 7 is press-fitted and fixed in the concave portion 4 of the port member 3, and a discharge port section 8 is formed at the center of the discharge port member 7. The discharge port 8 is provided with an elastic valve 10 having a slit 9 formed therein. The slit 9 may be simply linear, may be cross-shaped, or may be Y-shaped. still,
The liquid flow path in the present example is constituted by the vertical holes 5 and the horizontal grooves 6 and the discharge ports 8.

An inner hole 11 penetrating the lower end is formed inside the mouth member 3, and a through hole 12 communicating with the outside of the mouth member 3 is formed in the inner hole 11 in a lateral direction. (See FIGS. 3 and 4). In the middle of the inner hole 11,
A porous body (filter) 13 is disposed, and a valve seat 14 is disposed below the porous body 13.
Below the valve seat 14, an air inflow valve 15 that can expand only in the direction of the liquid chamber 2 is arranged. Here, the air inflow valve 15 will be described in detail. As shown in FIGS. 5 and 6, a valve cover 17 serving as a practical valve is located inside the outer peripheral ring portion 16. Is formed with a circumferential projection 17a. Since the circumferential projection 17a is in contact with the lower surface of the valve member 14, upward expansion is prevented. The outer peripheral ring portion 16 and the valve cover 17 are connected by three arc-shaped connecting pieces 18. It opens and closes with as little force as possible, yet has a highly sealed structure. In addition, the air inflow valve 15
A ring-shaped valve fixing member M is press-fitted into the inner hole 11 at the lower end thereof. The valve fixing member M prevents the air inflow valve 15 from coming off, and serves as a positioning member when the air inflow valve 15 is assembled to the inner hole 11. As shown in FIGS. 7 and 8, the air inlet valve may be connected to the valve cover 17 and the outer peripheral ring portion 16 by one hinge portion 19 to form an air inlet valve. As shown in FIG. 7, the valve lid 17 having the slit 20 formed therein may be used as an air inflow valve. In short, various valve structures can be selected as long as the upper surface of the valve lid 17 is brought into contact with the lower surface of the valve seat portion 14 so as to prevent the air inflow valve from expanding upward.

Specific examples of the porous body (filter) include a plastic sintered body made of polyethylene or polypropylene, a plastic foamed body made of urethane or the like, a metal sintered body made of aluminum, titanium, zirconium, or the like. Ceramic sintered bodies made of alumina, etc., filter paper made of cellulose, silica, glass fiber, fluorine resin, etc., bundles of fibrous materials such as plastic, glass, metal, etc. As an example, the above-described components may be stacked and attached (for example, a plastic sintered body and a metal sintered body).
Further, as the shape of the porous body, various shapes such as a cylindrical shape, a cylindrical shape, a bag shape, a plate shape, and a thin film shape can be selected.

Next, specific examples of the material of the elastic valve and the air inflow valve include silicone rubber, nitrile rubber, and the like.
Rubber-like elastic materials such as acrylic rubber, fluorine rubber, natural rubber, chloroprene rubber, butyl rubber, neoprene rubber, SBR, NBR, elastomer, and soft polyethylene,
Soft members having a single-layer structure such as PET, polyethylene, polyvinyl chloride, and nylon can be used.
The ET may have a two-layer structure, such as one in which polypropylene is adhered to the lower surface. 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. In addition, PET is coated on the lower surface of PET coated with vinylidene chloride, PET is coated on the lower surface of PET coated with vinylidene chloride, and PET is coated on the lower surface of silicon oxide. A material in which polyethylene is adhered, a material in which polypropylene is adhered to the lower surface of PET coated with silicon oxide, a material in which a hot-melt resin is coated on the lower surface of PET, or the like 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. When the side portion of the container body 1 is pressed, the liquid in the liquid chamber 2 passes through the liquid flow path composed of the vertical hole 5 and the horizontal groove 6 and the discharge port 8, and passes through the slit 9 of the elastic valve 10. It is expanded and discharged by its own liquid pressure (see FIG. 11). When the discharge is completed, the slit 9 of the elastic valve 10 is restored by its own elastic restoring force and shielded (the state shown in FIG. 1). In this state, the discharged liquid is attached to a finger or the like and wiped off. At this time, the liquid pressure also acts on the air inflow valve 15,
Since the upward expanding force of the air inflow valve 15 is blocked by the valve seat portion 14, the air inflow valve 15 does not expand upward.
Liquid does not flow into the inner hole 11 either.

When the pressing of the container body 1 is released,
The same amount of air as the amount of the discharged liquid attempts to enter the liquid chamber 2 of the container body 1. Here, since the elastic valve 10 has already been shielded, air enters through the through hole 12 of the mouth member 3 and is filtered while passing through the porous body (filter) 13. Then, the filtered air expands the air inflow valve 15 and enters the liquid chamber 2 (see FIG. 12).

FIG. 13 is a view showing a state in which the cap 21 is screwed to the container body 1 when not in use. However, instead of screwing, the cap 21 may be press-fitted. The cap 21 protects the elastic valve 10 and also prevents unnecessary inflow and exchange of air from the through hole 12.

A modification is shown in FIG. In the above example, the elastic valve 10 and the porous body 13 are arranged coaxially, but in this example, they are arranged at different positions. A mouth member 22 is attached to an upper portion of the container body 1, and a liquid flow passage 23 communicating with the liquid chamber 2 is provided at a central portion of the mouth member 22.
Is formed. At the upper end of the discharge port 24, an elastic valve 10 in which a slit 9 is formed is arranged.

Further, an inner hole 26 is formed inside the piece 25 of the mouth member 22, and the inner hole 26 has
As in the previous example, a porous body 13, a valve seat 14, and an air inflow valve 15 are arranged. Further, a through hole 27 is formed above the inner hole 26 in the piece portion 25 to communicate the inner hole 26 with the outside. Reference numeral 28 denotes an umbrella-shaped member for preventing foreign matter, water, and the like from directly entering the inner hole 26. The umbrella-shaped member 28 has a through hole 29 that communicates the inner hole 26 with the outside. Are formed. Also,
Reference numeral 30 denotes a screw member for screwing the cap. The screw member 30 may be formed integrally with the mouth member 22 or the umbrella member 28.

[0016]

According to the present invention, there is provided a discharge container for discharging a liquid in a liquid storage chamber from a discharge port. An elastic valve having a slit formed at an outlet portion is arranged. The liquid reservoir is communicated with the outside by an air exchange passage, and a filter is interposed in an intermediate portion of the air exchange passage. An air inflow valve that expands only on the side of the liquid storage chamber is disposed between the filter and the liquid storage chamber, so that the liquid does not come into contact with the filter, so that the filter is not clogged or the like and good over time. It is possible to provide a suitable discharge container.

[Brief description of the drawings]

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

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a vertical cross-sectional view as seen from the arrow B in FIG. 1;

FIG. 4 is a sectional view taken along line CC of FIG. 1;

FIG. 5 is a top view showing the air inflow valve of FIG. 1;

FIG. 6 is a sectional view taken along line DD of FIG. 5;

FIG. 7 is a top view showing a modification of the air inflow valve.

FIG. 8 is a sectional view taken along line EE of FIG. 7;

FIG. 9 is a top view showing a modification of the air inflow valve.

FIG. 10 is a sectional view taken along line FF of FIG. 9;

FIG. 11 is a vertical sectional view showing the operation (at the time of liquid ejection).

FIG. 12 is a longitudinal sectional view showing the operation (at the time of air inflow).

FIG. 13 is a longitudinal sectional view showing a state in which a cap is placed.

FIG. 14 is a vertical sectional view of a main part showing a modification.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Container main body 2 Liquid chamber (liquid storage chamber) 3 Port member 4 Concave part 5 Vertical hole 6 Horizontal groove 7 Discharge port member 8 Discharge port part 9 Slit 10 Elastic valve 11 Inner hole 12 Through hole 13 Porous body 14 Valve seat 15 Air Inflow valve 16 Outer ring part 17 Valve lid 18 Connecting piece 19 Hinge part 20 Slit 21 Cap 22 Port member 23 Liquid flow passage 24 Discharge port 25 Part 26 Internal hole 27 Through hole 28 Umbrella member 29 Through hole 30 Screw member M Valve fixing member

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. The liquid storage chamber and the outside are communicated with each other by an air exchange path, and a filter is interposed in an intermediate portion of the air exchange path, and further, an elastic valve is provided between the filter and the liquid storage chamber. Is a discharge container provided with an air inflow valve that expands only on the liquid storage chamber side.