JP2000325839A - Froth discharge container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a froth discharge container which is relatively simple in constitution, allows inverted use without requiring a special structure and is low in a cost. SOLUTION: This container is provided with a discharge plug 14 at the mouth part 12 of the container and is capable of discharging the liquid housed in a container body from the discharge plug 14 when the container body is pressed. In such a case, the discharge plug 14 is provided with a spindle element, such as a small-diameter part groove which applies swirling motion to the liquid pushed out and run from the container body, a hole 22a which sprays the swirled liquid, an air mixing passage which mixes air with the sprayed liquid and froths the liquid and a net 30 which regulates froth diameters by allowing the passage of the liquid after the mixing with the air. The discharging of the liquid in the form of froth is thus made possible.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a squeeze-type bubble which is capable of discharging a liquid contained in a container body from the discharge plug by providing a discharge plug at a container mouth and pressing a container body made of an elastic material. It relates to a discharge container.

[0002]

2. Description of the Related Art Various foam discharge containers for discharging a liquid in a container in a foam state have been proposed and put into practical use. For example, Japanese Patent Application Laid-Open No. 9-173922 discloses a hand-pump type foam discharger.

[0003]

As described in the above-mentioned publications, the conventional bubble discharge containers include a dispenser type which discharges bubbles by depressing a head and a trigger type which discharges bubbles by pulling a lever. However, these have a complicated structure and a high cost because the pump section is provided in the head held by the user by hand. Further, it is difficult to use the head by inverting it downward, and a special structure is required to use the head inverting, so that the cost is further increased.

The present invention has been made in view of the above-mentioned conventional problems, and provides a foam discharge container which has a relatively simple structure, can be used upside down without requiring a special structure, and is inexpensive. The purpose is to:

[0005]

The present invention has the following arrangement to achieve the above object. The invention according to claim 1 is a squeeze-type container capable of discharging a liquid contained in a container body from the discharge plug by providing a discharge plug at a container mouth portion and pressing the container body. A spin element that gives swirling motion to the liquid that has been pushed out of the main body and flows, a hole that sprays the swirled liquid, and an air mixing passage that mixes air with the sprayed liquid to foam the liquid, A foam discharge container characterized in that a liquid can be discharged in a foam state. The invention according to claim 2 is the foam discharge container according to claim 1, wherein the discharge tap is provided with a net for adjusting the bubble diameter by allowing the liquid after air mixing to pass therethrough. The invention according to claim 3 is that a concave portion having a diameter larger than the diameter of the spray hole is formed on the outlet side of the spray hole of the discharge tap, and a hollow cylindrical member provided with a net is fitted into the concave portion, and the outside air is inserted into the cylindrical member. The foam discharge container according to claim 1 or 2, wherein an introduction hole is provided, and air is mixed with the liquid sprayed into the hollow cylindrical member, so that the hollow hollow cylindrical member is an air mixing passage. is there. The invention according to claim 4 is characterized in that the outer diameter of the cylindrical member is smaller than the inner diameter of the concave portion, and the gap between the cylindrical member and the concave portion is an outside air introduction passage. It is a foam discharge container of the description.

[0006] The inventor has considered a spin element which is a premise of foam ejection. For example, in a nozzle structure for spraying a liquid, as shown in FIG. 5, a groove d is formed as a spin element a at a tip end of a columnar portion c in a state fitted in a concave portion b. Further, a spray hole e having a smaller diameter than the recess b is formed in the front of the recess b, and a recess f having a larger diameter than the spray hole e is formed in front of the spray hole e. It has become. In the case of FIG.
The groove d is not in communication with the flow path g on the container body side containing the liquid, and is in a closed state. On the other hand, as shown in FIG. 6, when the liquid flows into the spin element a by opening the groove d and the flow path g of the columnar portion c, the liquid passing through the groove d rotates in the concave portion b just before the spray hole e. In this swirling state, the spray hole e
And sprays out in a mist toward the concave portion f on the other side by the orifice effect. Then, as shown in FIG. 7, when air is introduced into the liquid ejected in the form of a mist in the concave portion f through the hole h on the side surface and mixed, the liquid is foamed.

The inventor of the present invention devised the present invention in order to employ the above-described bubble generating mechanism using a spin element in a squeeze type container having a relatively simple structure. And
The problem in this case is the structure of the air introduction channel.
The present invention has also devised a simple configuration in this regard.

According to the present invention, in a squeeze-type container, when the liquid contained in the container body is discharged by the discharge plug by pressing the container body, the liquid is pushed out of the container body by the spin element and flows. Gives a swirling motion to the liquid, sprays the swirled liquid from the holes, mixes the sprayed liquid with air to foam the liquid, and adjusts the bubble diameter by passing the air-mixed liquid through a net. Enables liquid ejection. Therefore, the foam can be discharged by pressing the container body with a simple configuration without requiring a pump, and the cost can be reduced. In addition, even if the discharge tap is turned down, the liquid can be supplied to the discharge tap without any special configuration, and the bubbles can be conveniently discharged as in the case of erecting. In addition, a concave portion having a diameter larger than the diameter of the spray hole is formed on the outlet side of the spray hole of the discharge tap, a hollow cylindrical member provided with a net is fitted inside the concave portion, and an external air introduction hole is provided in the cylindrical member. If air is mixed with the liquid sprayed into the hollow cylindrical member and the air mixing passage is formed inside the hollow cylindrical member, the bubble can be discharged by forming the concave portion and the cylindrical member fitted into the hollow, so that the structure is simple. It is.
Further, if the outer diameter of the cylindrical member is smaller than the inner diameter of the concave portion and the gap between the cylindrical member and the concave portion is the outside air introduction passage, the air introduction passage can be simply formed by simply fitting the cylindrical member.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. 1 is an overall explanatory view of a foam discharge container according to an embodiment, FIG. 2 is a detailed vertical sectional view of a discharge tap, FIG. 3 is a detailed view of a discharge port portion of the discharge tap, FIG.
7 are explanatory diagrams of the comparative example.

As shown in FIG. 1, the embodiment is a container in which a push-pull type discharge plug 14 is provided at a mouth portion 12 of a container body 10 for storing a liquid. The present invention relates to a squeeze-type container capable of discharging a liquid contained in a container body 10 from a discharge port 16 of a discharge plug 14. The container main body 10 is made of resin by a blow molding method and can be elastically deformed by a user pressing an outer peripheral portion thereof, and the discharge plug 14 is made of a resin material by injection molding.

As shown in FIG. 2, a discharge plug 14 is fixed to a container mouth 12 protruding upward from the container body 10 in a cylindrical manner by screw engagement, and is relatively moved with respect to the base 18. A plug body 20 with a base 18
The push-pull type is configured to allow and restrict liquid discharge from the discharge port 16 by vertically moving the stopper body 20.

From the base 18, a columnar projection 1 at the center of the shaft
8a and a peripheral wall portion 18b surrounding the periphery thereof are formed to protrude upward, and from the plug body 20, a locking wall 20a sandwiched and slidably in contact with the inner and outer surfaces of the peripheral wall portion and an outer peripheral wall 20b serving as an outer surface
Are formed to project downward. Projections 18c, 20c are formed on both the peripheral wall portion 18b and the inner locking wall 20a,
The upper end of the stopper body 20 is positioned with respect to the base 18. At the center of the shaft of the plug body 20, a liquid flow path 22 is formed which is connected to the inside of the container mouth 12 and the discharge port 16 by a space surrounded by the locking wall 20a. The columnar projection 18a is accommodated so as to be able to be separated and approached. The distal end of the columnar projection 18a opens and closes the liquid flow path 22 so that the discharge plug 14
Is opening and closing.

At the tip of the projection 18a of the base 18, there is a portion 24 having a step-like small diameter, as shown in detail in FIG. A pair of grooves 24a is formed toward the deviated position. Further, in the stopper body 20, a liquid spray hole 22a is formed at a position above the small diameter portion.
The hole has the smallest diameter in the middle of the liquid flow path 22 and has an orifice structure. Further, an inner surface 22b on the front side of the liquid spray hole 22a is formed in a downward opening tapered shape. The shoulder of the tip end of the projection 18a and the inner surface 22b on the near side are
A valve function that opens and closes by the contact / separation thereof is provided, and when the small diameter portion 24 is retracted with respect to the near inner surface 22b, when the liquid flows in, the flow of the liquid is rotated by the groove 24a and the discharge port 16 is rotated. It has the function of a spin element that gives a swirling motion to the liquid flowing toward.

On the upper surface of the plug main body 20 and on the outlet side of the liquid spray hole 22a, a hollow cylindrical mounting portion 26 forming an inner concave portion having an inner diameter larger than the diameter of the spray hole 22a is integrally formed so as to protrude. ing. A generally hollow cylindrical net holding portion (corresponding to a cylindrical member) 28 is inserted and fixed in the mounting portion 26. The net 30 is held and fixed to the net holding portion 28 in a state of being expanded in a direction perpendicular to the axis of the discharge plug 14 for adjusting the bubble diameter to a predetermined value inside the tip. The outer peripheral surface of the net holding portion 28 has an inner surface of the mounting portion 26 and a holding portion 28.
Protrusions 28a are formed to keep a distance from the outer surface.
Further, a notch (outside air introduction hole) 28b is formed near the liquid spray hole 22a of the holding unit 28. This projection 2
8, a gap 32 between the inner surface of the mounting portion 26 and the outer surface of the holding portion 28
The notch 28b and the notch 28b form an outside air introduction passage, thereby forming an air mixing passage 34 for mixing air with the swirled liquid ejected from the spray hole 22a in the hollow of the net holding portion 28.

As described above, the liquid ejected from the liquid spray hole 22a is mixed with air in the air mixing passage 34 to form a bubble, and the liquid after air mixing is passed through the net 30 on the other side to form a liquid. Is adjusted to a predetermined diameter, and the foamy liquid is discharged from the discharge port 16 of the opening of the net holding unit 28.

In the container of the embodiment, in the squeeze type container, first, the plug main body 20 of the discharge plug 14 is connected to the base 18.
To open. Then, as shown in FIG.
The liquid contained therein is increased by increasing the pressure in 0 and foamed and discharged from the discharge plug 14. At this time, the liquid (indicated by L) flowing by the spin element function of the inner surface 22b on the front side of the liquid flow path 22 and the groove 24a of the small-diameter portion 24 is swirled to move the liquid from the spray hole 22a into the air mixing passage 34. Spray.
At this time, air (indicated by the symbol A) is introduced into the air mixing passage 34 through the outside air introduction passage formed by the gap 32 and the cutout 28b, and the air is mixed with the sprayed liquid to foam. Furthermore, since the liquid after air mixing is passed through the net 30 and the bubble diameter is adjusted to a predetermined value, the liquid can be made into a foam and discharged from the discharge port 16. Therefore, the foam can be discharged by pressing the container body 10 with a simple configuration without a pump, and the cost can be reduced. In addition, even if the discharge plug 14 is turned down, the liquid is supplied to the discharge plug 14 by pressing the container main body 10 without requiring a special configuration. is there.

[0017]

As described above, according to the present invention, bubbles can be discharged by pressing the container body with a simple structure without the need for a pump, and the cost can be reduced. Further, even if the discharge tap is turned downward, the bubble can be conveniently discharged from the discharge tap in the same manner as when erecting, without requiring a special configuration.

[Brief description of the drawings]

FIG. 1 is an overall explanatory view of a foam discharge container according to an embodiment.

FIG. 2 is a detailed vertical sectional view of a discharge tap.

FIG. 3A is a detailed view of a discharge port portion of a discharge tap, and FIG.
FIG. 4 is a front view of the small diameter portion.

FIG. 4 is an explanatory diagram of foaming of a liquid.

FIG. 5 is an explanatory view of a discharge tap as a premise of the present invention.

FIG. 6 is an explanatory diagram of liquid discharge from a discharge port in the discharge tap of FIG. 5;

FIG. 7 is an explanatory diagram of bubble generation.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Container main body 12 Container mouth part 14 Discharge plug 16 Discharge port 22 Liquid flow path 22a Liquid spray hole 24 Small diameter part 26 Mounting part 28 Net holding part

Claims (4)

[Claims] A squeeze-type container capable of discharging a liquid contained in a container main body from a discharge plug by providing a discharge plug at a container mouth portion and pressing a container main body. A spin element that gives swirling motion to the extruded and flowing liquid, a hole that sprays the swirled liquid, and an air mixing passage that mixes air with the sprayed liquid to foam the liquid are provided. A foam discharge container characterized in that it can be discharged in the form of a foam. 2. The foam discharge container according to claim 1, wherein the discharge tap is provided with a net for adjusting the bubble diameter by passing the air-mixed liquid. 3. A concave portion having a diameter larger than the diameter of the spray hole is formed on the outlet side of the spray hole of the discharge tap, and a hollow cylindrical member provided with a net is fitted into the concave portion, and an external air introduction hole is formed in the cylindrical member. Is established,
The foam discharge container according to claim 1 or 2, wherein air is mixed with the liquid sprayed into the hollow cylindrical member so that the hollow hollow tube is formed as an air mixing passage. 4. The method according to claim 1, wherein the outer diameter of the cylindrical member is smaller than the inner diameter of the concave portion, and the gap between the cylindrical member and the concave portion is an outside air introduction passage. Foam discharge container.