JPH11301723A - Push-out container capable of preventing rise of internal pressure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To keep a stable state and also to prevent an atmosphere from entering a container to prevent contamination inside the container by supporting a rise of internal pressure in the container even if a diameter of a tip of a pouring cylinder port increases in a closure structured between the tip of the pouring cylinder port of an inner lid and a top plate of a cap in a push-out container. SOLUTION: The push-out container comprising a container A for filling contents, an inner lid B having a pouring cylinder attached thereto and a cap C attached to the inner lid B has a small protrusion (a) protruding at a tip of a pouring cylinder port 12 of the inner lid B. A flexible top plate (b) of the cap C in contact with the small protrusion (a) can separate from the small protrusion (a) due to a rise in internal pressure in the container, and a skirt-like valve (c) is peripherally provided separately from the cap C above a threaded portion of the inner lid B to be screwed with the cap C, thereby allowing an increased pressure inside the container to go out and also preventing an atmosphere from entering.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an extruding container for contents, and more particularly to an extruding container for preventing a change in internal pressure due to a change in temperature and an increase in internal pressure due to gas generated by fermentation or the like.

[0002]

2. Description of the Related Art When the internal pressure in a container rises, the gas pressure pushes up a top plate of a thin cap constituting a spout closing portion of an inner lid, and a container for extruding the contents to be released from the gap. Is known from JP-A-9-95348.

[0003]

However, in the above-mentioned conventional technique, when the diameter of the tip of the spouting tube opening becomes large, the contact between the top plate of the cap and the spouting tube opening is made. As the portion moves outward and approaches the ridge, the amplitude of the top plate decreases. For this reason, when the internal pressure of the container increases, the effect of pushing up the top plate of the closing portion decreases, and it becomes insufficient in releasing the internal pressure.When the internal pressure increases due to gas generated by fermentation or the like, the container is When the cap is expanded or the cap is opened, the contents are scattered due to the internal pressure.

The present invention has been made as a result of research and experiments to solve the above-mentioned problems. The purpose of the present invention is to increase the diameter of the tip end of the spout cylinder opening of the inner lid. Even if the internal pressure in the container can be increased, the pressure can be kept stable, the contents can be prevented from being scattered when opened, and the outside air can be prevented from entering the container. This is to prevent contamination in the container and maintain quality.

[0005]

In order to achieve the above object, according to the present invention, there is provided an extruding container comprising a container for filling contents, an inner lid having a pouring cylinder, and a cap. The relationship between the small projection protruding from the tip of the spout cylinder opening and the flexible top plate of the cap that moves up and down due to fluctuations in the internal pressure in the container, and a skirt-shaped The problem is solved in relation to the valve and the inner wall of the cap with which the valve abuts.

That is, the present invention relates to an extruding container comprising a container for filling the contents, an inner lid having an ejection tube to be attached to the container, and a cap attached to the inner lid. A small projection protrudes from the tip of the part, and the flexible top plate of the cap that contacts the small projection has a configuration such that it can be separated from the small projection by an increase in internal pressure in the container, In addition, a skirt-shaped valve is provided between the cap and the cap above the threaded portion of the inner lid with which the cap is screwed. In addition, the internal pressure is prevented from rising without being influenced by the diameter of the tip of the spouting tube mouth portion depending on the height and width thereof.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention comprises a container for filling contents, an inner lid having a spouting cylinder screwed to the container, and a cap screwed to the inner lid. A small projection protrudes from the tip of the outlet cylinder opening of the lid, and the small projection is in contact with the inner surface of the flexible top plate of the cap. A skirt-shaped valve is provided between the cap and the cap above the screw portion of the inner lid to which the cap is screwed. The extrusion container having such a configuration releases a pressure rising due to a change in internal pressure caused by a temperature change in the container, a change in gas pressure generated by fermentation or the like, and keeps the pressure in the container stable. At the same time, it is possible to prevent outside air from entering the inside.

[0008]

An embodiment of the present invention will be described with reference to the drawings.
The extrusion container of the present invention comprises a container (A) for filling the contents of blow molding, a middle lid (B) and a cap (C) for injection molding.
It is composed of The container (A) is composed of a body part (1) and a barrel part (2). The barrel part (2) has a screw (3) downward and a reduced diameter part (4) above it.
The upper end of which is an opening flange (5).

The inner lid (B) is a mouthpiece (2) of the container (A).
A cylindrical part (7) having a screw (6) screwed thereinto with the screw (3), and a pouring cylinder (8) projecting from the cylindrical part (7). There is a screwing portion (9) whose diameter is reduced upward, and a screw (11) for screwing with the screw (10) inside the cap (C) is provided on the outer surface thereof. A small projection (a) protrudes from an end portion (13) of the outlet tube opening (12) of the outlet tube (8).

[0010] A plurality of projections (14) are provided at equal intervals on the outer peripheral edge of the upper surface of the cylindrical portion (7). This projection is provided when the cap (C) is screwed onto the inner lid (B). The lower edge (15) of the cap (C) is in contact with the upper surface of the cylindrical portion (7) of the inner lid (B) so as to provide a slight gap.

The cap (C) comprises a flexible top plate (b) and a cylindrical portion (16).
Has a screw (10) screwed into the screw (11) of the inner lid (B), and when the cap (C) is screwed to the inner lid (B), the flexible top plate (b) ) Abuts on the small protrusion (a) on the end (13) of the outlet tube opening (12) of the outlet tube (8) to form a closed portion (17) in this portion. When the internal pressure of the container (A) rises, the small projection (a) and the top plate (b) are in contact with each other while the rising pressure is still low. The upper pressure is discharged to keep the balance. In addition, when the gas pressure of the contents rapidly changes due to fermentation or when the internal pressure rises rapidly due to temperature rise, the top plate (b) separates from the small protrusion (a) due to its flexibility. The rising pressure is also discharged from here, maintaining the balance.

The valve (c) is connected to the cylindrical portion (16) of the cap (C) at the mounting portion (18) above the screw (11) of the screwing portion (9) of the inner lid (B). A skirt is provided around the lower side of the body. The mounting angle of the valve (c) is a downward angle of about 15 degrees with respect to the horizontal plane of the screwing portion (9), and this angle depends on the size of the container (A), the inner lid (B), It differs somewhat depending on the structure of the cap (C) and the like. The skirt-shaped and ring-shaped valve (c) is formed integrally with the inner lid (B) and is always closed by upward elasticity and external pressure. The upper pressure rise in the container (A) passes through the closing part (17) formed by the discharging cylinder (8) of the inner lid (B) and the flexible top plate (b) of the cap (C), The space (19) is reached between the discharge tube (8) of the inner lid (B) and the cylindrical portion (16) of the cap (C), from which the skirt-shaped valve (c) is depressed, and Screw (11) of screwing part (9) of lid (B) and cylindrical part (1) of cap (C)
The protrusion (14) of the cylindrical portion (7) of the inner lid (B) and the cap (C) pass through the gap of the screwing portion with the screw (10) of 6).
Gap (20) with the lower edge (15) of the cylindrical portion (16)
Is discharged to the outside.

The small projection (a) protruding from the end (13) of the spout port (12) of the spout cylinder (8) constituting the closing part (17) has a height of 0.5 mm and a width of 0.5 mm. When a product of 3 mm was provided at four locations and used as a container for fermented milk, good results were obtained. When gas generation was rapid due to fermentation of the contents, etc., the small protrusions (a) and (a) were separated. Gas escapes,
In combination with the fact that the flexible top plate (b) of the cap (C) constituting the closing portion (17) slightly rises due to gas pressure, the internal pressure does not temporarily rise excessively temporarily. Was.

In this embodiment, a small projection (a) of the inner lid (B) is used.
The height is 0.5 mm and the width is 3 mm, and the number is specified at four places. The contents are determined from the contact point between the small projection (a) of the inner lid (B) and the top plate (b) of the cap (C). In consideration of the problem that the liquid flows out, the height is set according to the viscosity of the contents, the surface tension of the contents liquid, and the like. With the contents used this time, 0.5 mm or less is effective, and the number of protrusions is
The results obtained that 2 to 8 were effective.

When the skirt-shaped ring-shaped valve (c) is provided so as to be derived from the threaded portion (9) of the inner lid (B), it operates with a small amount of gas. By setting the angle of the valve (c) to a downward angle of about 15 degrees with respect to the horizontal plane of the screwing portion (9), the valve (c) is attached to the inner surface of the inner cylindrical portion (16) of the cap (C). The intimate contact prevents the inflow of outside air.

[0016]

According to the present invention, there is provided an extrusion container comprising a container for filling contents, an inner lid having a pouring cylinder, and a cap, wherein a small projection protrudes from a tip of a pouring cylinder opening of the inner lid. At the same time, by contacting the flexible top plate of the cap with the small projection, a slight gap was provided between the tip of the spouting tube opening and the top plate. Even when the diameter is increased, the internal pressure can be prevented from rising by reacting to a slight change in the internal pressure due to a temperature change or gas generation. Further, even when the internal pressure rises sharply, the container is expanded and deformed due to the combination of the discharge of gas from the gap between the small projections and the discharge due to the rise of the closing portion of the top plate of the cap. When the cap is opened, the contents can be prevented from being scattered due to the internal pressure.

Since the size of the small projection at the tip of the spouting cylinder opening is provided in consideration of the viscosity of the contents or the surface tension of the contents liquid, even if the storage is performed in an inverted or overturned state, The contents do not leak. Furthermore, since the valve has a skirt shape and a ring shape and is provided above the screw of the threaded portion in the inner lid, it operates even with a slight air pressure, and is in close contact with the inner surface of the cap, The contents can be kept sanitary without outside air flowing in.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of an extrusion container of the present invention.

FIG. 2 is an enlarged sectional view of a main part of the extrusion container of the present invention.

FIG. 3 is a partially enlarged cross-sectional view of a main part of the above.

[Explanation of symbols]

 A Container B Inner Lid C Cap a Small Projection b Top Plate c Valve 1 Body 2 Portion 3, 6, 10, 11 Screw 4 Reduced Diameter 5 Opening Flange 7, 16 Cylindrical 8 Discharge Cylinder 9 Screw 12 Discharge cylinder mouth 13 End 14 Protrusion 15 Lower edge 17 Closure 18 Attachment 19 Space 20 Gap

Claims (4)

[Claims] 1. An extrusion container comprising a container for filling contents, an inner lid having a spouting tube to be attached to the container, and a cap to be attached to the inner lid. An extruding container for preventing an increase in internal pressure, wherein a small projection is provided so that a flexible top plate of a cap abutting on the small projection is separated from the small projection by an increase in internal pressure in the container. . 2. An extruding container comprising a container for filling contents, an inner lid having a spouting tube attached to the container, and a cap attached to the inner lid, a screw portion of the inner lid screwed to the cap. Above, a skirt-shaped valve is provided around the cap to release the upper pressure rise in the container to the outside,
An extrusion container for preventing an increase in internal pressure, characterized by preventing intrusion of outside air. 3. An extruded container comprising a container for filling contents, an inner lid having a spouting tube attached to the container, and a cap attached to the inner lid, wherein the extrusion of the inner lid according to claim 1 is performed. 3. A skirt-shaped valve provided around a threaded portion of a middle lid according to claim 2, wherein a small projection protruding from the distal end of the outlet port and a flexible top plate of a cap abutting the small projection are provided. An extrusion container for preventing an increase in internal pressure, comprising: 4. The internal pressure rise is prevented by the number, the height and the width of the small projections protruding from the tip of the pouring cylinder mouth of the inner lid, without being influenced by the diameter of the tip of the pouring cylinder mouth. An extrusion container for preventing an increase in internal pressure according to claim 1 or 3.