JP2003292007A - Container spout - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a stopper for a container capable of easily and hygienically opening a closing wall closing a cylindrical portion. SOLUTION: A tubular part 3 closed by a closing wall 2 is provided.
In the plug of a container, which comprises a plug body 1 provided with a cap and a cap 5 and opens by tearing the thin line portion 8 provided on the closing wall 2, at least the periphery of the closing wall 2 closing the cylindrical portion 3 Is raised so as to face the cylindrical portion 3 to form a rising wall portion 2a connected to the upper side of the cylindrical portion 3, and two inner and outer thin line portions 8 constituting the annular thin line portion 8.
a, 8b is formed on the rising wall portion 2a of the closing wall 2, and a hooked body 12 is provided inside the connecting portion 9 which is the starting end of the two thin wire portions 8a, 8b. Outside the standing core 13, by rotating the cap 5 in one direction, the cap 5 is caught on the hooked body 12 and the annular thin wire portion 8 is formed.
Is provided from the connecting portion 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention mainly relates to a spout attached to a liquid container such as a beverage.

[0002]

2. Description of the Related Art Containers based on paper are widely used as containers for various liquids such as milk and juice. Some of these containers are of a type to which a spout for liquid pouring is attached, and as this spout, from the viewpoint of hygiene and tamper evidence, a cylindrical portion whose inside is closed by a closing wall is provided. A synthetic resin spout body and a cap fitted to the outer circumference of the spigot body, and a thin line portion provided on a closing wall that closes the tubular portion is torn to be surrounded by the thin line portion. There is known a spigot that opens by removing the blocking wall.

Conventionally, in this type of spout, as a means for tearing a thin wire portion provided on a closing wall that closes a tubular portion, a ring is generally attached to a tip of the closing wall surrounded by the thin wire portion. The thin wire is provided with a pulling body having a portion, and at the time of opening, remove the cap, insert a finger into the tubular portion of the spout body, hook on the ring portion of the pulling body, and pull the pulling body. The portion is torn to remove the closing wall surrounded by the thin line portion and then opened. However, according to the above-mentioned spout, since the finger is inserted into the tubular portion that serves as the spout, the finger may touch the inner surface of the tubular portion, which is not necessarily hygienic.

Therefore, as a solution to the above problems,
A thin line portion is formed on the closing wall so that the closing wall can be torn as a continuous band having a starting end and a terminating end.A pin is erected at the starting end of the continuous band, and the pin is engaged in the cap. Japanese Unexamined Patent Publication No. 2000-229655 discloses a mouth plug of a container which is provided with mating engagement projections and cuts and opens a continuous band together when the cap is rotated in the opening direction.

[0005]

[Patent Document 1] Japanese Unexamined Patent Application Publication No.
In the mouth plug of the container disclosed in 000-229655, since the engaging projection draws a circular orbit with respect to the closed wall surface by the rotation of the cap, the severing progresses from the starting end of the continuous sash and the severing position of the continuous sash is reached. When the engagement position between the pin on the closing wall side and the engagement protrusion on the cap side is separated from each other, as a result,
The tearing direction of the continuous band and the advancing direction of the pin and the engaging protrusion in the engaged state gradually deviate from each other, and the tearing force by the pin and the engaging protrusion in the engaged state works efficiently in the tearing direction of the continuous band. Since it disappeared, there was a problem that it was difficult to cut it.

An object of the present invention is to provide a container spigot capable of easily and hygienically opening a closing wall that closes the inside of a tubular portion.

[0007]

The structure of the present invention which achieves the above object is as follows. The invention according to claim 1 is composed of a synthetic resin plug main body having a cylindrical portion whose inside is closed by a closing wall, and a cap fitted to the outer periphery of the plug main body. In the stopper of the container that opens by removing the closing wall surrounded by the thin line portion provided on the closing wall that closes the portion, the closing wall that closes the tubular portion is a cylinder. A rising wall portion that is located below the rising portion and that is connected to the upper side of the rising tubular portion such that at least a part of its periphery faces the rising tubular portion, and is provided on the closing wall. The thin-walled wire portion is composed of two thin-walled wire portions inside and outside of which one end is connected, and the outer thin-walled wire portion advances substantially in the circumferential direction with the connecting portion as the starting end, and its tip is on the starting end side. An annular thin portion is formed by connecting to one of the thin wire portions, Two pieces that form the annular thin-walled wire portion and are formed so as to advance in a direction substantially parallel to the side thin-walled wire portion in the same direction and stop at a position where the tip of the outer thin-walled wire portion exceeds the connecting portion of the tip of the outer thin-walled wire portion The connecting portion, which is the starting end of the thin line portion, is formed on the rising wall portion of the closing wall, and the hooked body is provided on the rising wall portion of the closing wall inside the connecting portion. Is provided with a protruding core body, and a hook body is provided on the outside of the core body to rotate the cap in one direction to be caught by the hook body and cut the annular thin wire portion from the connecting portion. It is characterized by

With this structure, when the cap is rotated in the opening direction, the hooking body on the cap side catches on the hooked body of the closing wall, and the closing wall has an annular thin wire portion provided on the closing wall as the cap rotates. Is formed as a continuous strip along the two thin-walled wire portions from the connecting portion, which is the starting end of the two thin-walled wire portions, and is formed by the outer thin-walled wire portion when the tear reaches the tip of the outer thin-walled wire portion. The inside of the annular portion is cut out and opened.

When the annular thin wire portion is torn, the closing wall that closes the tubular portion is located below the tubular portion and rises so that at least a part of its periphery faces the tubular portion. Since there is a rising wall portion that is connected to the upper side of the tubular portion, and the rising wall portion is formed with the connecting portion that is the starting end of the two thin wall portions that form the annular thin wire portion,
The continuous strip that has been torn is wrapped around the core that projects axially in the cap, so that the tearing force acts near the tearing position of the annular thin wire portion, facilitating the tearing of the annular thin wire portion. The closing wall that closes the inside of the tubular portion can be easily opened. Further, since it is not necessary to insert a finger into the tubular portion at this opening, it is hygienic.

According to a second aspect of the present invention, the closing wall that closes the tubular portion according to the first aspect rises up so that the entire periphery thereof faces the tubular portion, and the closing wall is located above the tubular portion. It has a tubular rising wall portion to be connected, and the annular thin line portion is formed on the tubular rising wall portion.

With this structure, the direction in which the hook body moves due to the rotation of the cap and the tearing direction of the annular thin wire portion that is cut from the connecting portion, which is the starting end of the two thin wire portions, are oriented in the same direction. The tearing direction of the continuous band,
Since the traveling directions of the hooked body and the hooked body in the hooked state can be made to coincide with each other, the tearing force by the hooked body and the hooked body in the hooked state works more efficiently in the tearing direction of the continuous band, and the annular thin wire The tearing of the part is further facilitated, and further, the continuous strip that has been torn is wrapped around the axially projecting core in the cap, which causes the tearing force to act near the tearing position of the annular thin wire section. It is possible to more easily tear the annular thin wire portion, and it is possible to open the closing wall that closes the inside of the tubular portion more easily.

The invention according to claim 3 is the invention according to claim 1 or 2.
The hooked body provided on the rising wall portion of the closing wall and / or the hook body provided outside the core body in the cap elastically deforms when the cap is rotated in the other direction. It is characterized in that the cap can be rotated.

With such a construction, when the cap is screwed onto the outer periphery of the tubular portion, the hook on the cap side becomes the hook on the closed wall only when the cap is rotated in the removing direction. By being hooked, the rotation when the cap is screwed onto the tubular portion can be performed without any trouble.

[0014]

1 to 4 show a first example of an embodiment of a container stopper according to the present invention, and FIG. 1 is a front view of the container stopper of this embodiment. 2 is a cross-sectional view taken along the line AA of FIG. 1, FIG. 3 is a cross-sectional view taken along the line BB of FIG. 2, and FIG. 4 is a development view showing the shape of the thin line portion formed on the closing wall.

In the drawing, reference numeral 1 is a synthetic resin spout body, and a cylindrical portion 3 whose inside is closed by a closing wall 2.
And a flange portion 4 formed on the outer periphery of the lower end of the tubular portion 3. Reference numeral 5 denotes a cap that is detachably fitted to the outer periphery of the tubular portion 3 that constitutes the spout body 1. In this example, the cap is screwed to the outer periphery of the tubular portion 3. It is not limited to. Reference numeral 6 denotes a thread formed on the outer circumference of the tubular portion, and 7 denotes a thread groove formed on the inner circumference of the cap 5.

The closing wall 2 that closes the tubular portion 3 is located below the tubular portion 3 and rises so that a part of the periphery thereof faces the tubular portion 3 and rises above the tubular portion 3. It has a rising wall portion 2a connected to.

Reference numeral 8 is an annular thin line portion provided on the closing wall 2. This annular thin-walled portion 8 is composed of two inner and outer thin-walled portions 8a and 8b connected at one end at a connecting portion 9, and the outer thin-walled portion 8a starts from the connecting portion 9 and removes the cap. In the same direction as the direction of rotation, it advances in a substantially circumferential direction, and its tip is connected to either the outer thin wire portion 8a or the inner thin wire portion 8b at the starting end side (connecting portion 9 side) by a connecting portion 11 and an annular portion. 10, the inner thin-walled wire portion 8b advances substantially in the same direction as the outer thin-walled wire portion 8a in the same direction, and the tip of the inner thin-walled wire portion 8b in the annular portion 10 is the outer thin-walled wire portion 8
It is formed so as to stop at a position beyond the connecting portion 11 at the tip of a.

A connecting portion 9 serving as a starting end of the two inner and outer thin wall portions 8a and 8b constituting the annular thin wire portion 8 is formed on the rising wall portion 2a of the closing wall 2. In this example,
The thin line portions 8a and 8b inside and outside are the rising wall portions 2a.
To the bottom wall portion 2b of the closing wall 2 at a gentle inclination, and at least the outer thin line portion 8a advances along the periphery of the bottom wall portion 2b,
It goes up to the rising wall portion 2a again and the starting end side (connecting portion 9 side)
The inner thin wall portion 8b is connected to the inner thin wire portion 8b to form an annular portion 10.

The rising wall portion 2a of the closing wall 2 has two thin and inner thin line portions 8a, 8 forming the annular thin thin wire portion 8.
The hooked body 1 is located inside the connecting portion 9 which is the start end of b.
2 is provided so as to project inward. Further, a core body 13 protruding in the axial direction is provided in the cap 5, and an outside of the core body 13 is caught in the hooked body 12 by being rotated in a direction of removing the cap 5, and the annular thin wall is formed. A hooking body 14 that cuts the line portion 8 from the connecting portion 9 is provided. At least one of the hooked body 12 and the hooked body 14 is elastically deformed to rotate the cap 5 when the cap 5 is rotated in the screwing direction. ing.

Further, the hooked body 12 and the hooked body 14 are not particularly limited as long as they have a structure in which the cap 5 is securely caught when the cap 5 is rotated in the removing direction and cannot be easily removed. . In this example, the hooked body 12 has a ring portion 15 having a larger volume than the thin neck portion 15a at the tip of the thin neck portion 15a protruding from the rising wall portion 2a of the closing wall 2.
This hooked body 12 has a shape in which b is formed.
Is provided so as to project inward so that the ring portion 15b opens in the circumferential direction of the tubular portion 3. By configuring the hooked body 12 as described above, when the hooking body 14 is hooked and pulled by the ring portion 15b forming the hooked body 12, since the ring portion 15b has a larger volume than the thin neck portion 15a, the pulling The force is concentrated on the root of the thin neck portion 15a, so that the annular thin wire portion 8 can be easily torn from the connecting portion 9. Further, since the hooked body 12 has such a structure, when the cap 5 is rotated in the screwing direction, the thin neck portion 15a is easily elastically deformed,
This allows the cap 5 to rotate smoothly.
On the other hand, the hooking body 14 that is hooked on the hooked body 12 has a hook shape that is fitted and hooked on the ring portion 15b of the hooked body 12.

FIG. 5 shows another example of the hooked body 12 and the hooked body 14. The hooked body 12 has a compound hole 16 having a wide hole portion 16a and a narrow hole portion 16b. Body 14
The bulging head 14a and the neck 1 which enter the wide hole 16a and are guided and locked by the narrow hole 16b by the rotation of the cap 5.
4b has a shape. Further, in this example, each of the hooked body 12 and the hooking body 14 is provided one by one, but a plurality of them may be provided.

In the present embodiment, the core 13 provided in the cap 5 so as to project in the axial direction has a cylindrical shape concentric with the cylindrical portion 5a of the cap 5, but the present invention is not limited to this. It is not something that can be done.

FIG. 6 shows another example of the core body 13 of the cap 5. The core body 13 is a column body which is erected in the circumferential direction along the inner periphery of the tubular portion 5a of the cap 5. It is formed by rows of 13a. Although the column 13a is plate-shaped, it may be column-shaped.

With the mouth plug of the container of this embodiment having the above structure, when the cap 5 is rotated in the removing direction, the cap 5 is rotated.
The hook body 14 on the side is hooked on the hooked body 12 of the closing wall 2, and the closing wall 2 forms the annular thin wire portion 8 provided on the closing wall 2 as the cap 5 rotates. Formed by the outer thin-walled wire portion 8a when a continuous strip is cut along the two thin-walled wire portions 8a, 8b from the connecting portion 9 which is the start end of the outer thin-walled portion 8a and 8b and the tear reaches the tip of the outer thin-walled portion 8a. The inside of the annular portion 10 is cut out and opened.

When the annular thin wire portion 8 is torn, the closing wall 2 that closes the tubular portion 3 is located below the tubular portion 3 and a part of its periphery faces the tubular portion 3. Has a rising wall portion 2a that rises and is connected to the upper side of the tubular portion 3, and the rising wall portion 2a has the starting ends of the two thin wall portions 8a and 8b forming the annular thin wire portion 8. Since the connecting portion 9 is formed, the continuous strip that has been cut is sequentially wound around the core body 13 that projects in the cap 5 in the axial direction. As a result, the tearing force acts near the tearing position of the annular thin-walled wire portion 8, facilitating the tearing of the annular thin-walled wire portion 8 and easily cutting and opening the closing wall 2 closing the inside of the tubular portion 3. can do. Further, since it is not necessary to insert a finger into the tubular portion 3 at this opening, it is hygienic.

7 to 9 show a second example of the embodiment of the container stopper according to the present invention, and FIG. 7 shows the container stopper of the present example shown in FIG. Sectional view at the same location as
8 is a cross-sectional view taken along the line CC of FIG. 7, and FIG. 9 is a development view showing the shape of the thin line portion formed on the closing wall. The parts corresponding to those of the first example shown in FIGS. 1 to 4 are given the same reference numerals.

In this example, the cylindrical portion 3 which constitutes the spout body 1
The closing wall 2 that closes the inside has a tubular rising wall portion 2 a that rises so that the entire periphery thereof faces the tubular portion 3 and that is connected to the upper side of the tubular portion 3, and has an annular thin line portion 8 Is formed on the rising wall portion 2a having a cylindrical shape.

In the present example, the annular thin-walled portion 8 has two inner and outer thin-walled portions 8a, 8b whose one end is joined at the joining portion 9.
The outer thin line portion 8a has a cylindrical rising wall portion 2a which starts from the connecting portion 9 and advances substantially in the circumferential direction in the same direction as the rotation direction for removing the cap.
The circular portion 10 is connected to the outer thin-walled wire portion 8a on the starting end side (connecting portion 9 side) at the connecting portion 11 after going around
And the inner thin-walled portion 8b advances substantially in the same direction as the outer thin-walled portion 8a in the same direction, and its tip exceeds the connecting portion 11 of the tip of the outer thin-walled portion 8a in the annular portion 10. It is formed to stop.

The other structure is the same as that of the first example. With such a configuration, the traveling direction of the hooking body 14 by the rotation of the cap 5 and the tearing direction of the annular thin-walled wire portion 8 cut from the connecting portion 9 that is the starting end of the two thin-walled wire portions 8a, 8b are directed in the same direction. As a result, the tearing direction of the continuous band and the advancing direction of the hooking body 14 and the hooked body 12 in the hooking state can be made to coincide with each other, so that the tearing force by the hooking body 14 and the hooked body 12 in the hooking state Works more efficiently in the tearing direction of the continuous strip, making it easier to tear the annular thin wire portion 8, and the cut continuous strip is a core 13 protruding axially into the cap 5.
The tearing force is exerted near the tearing position of the annular thin-walled wire portion 8 by this, so that the tearing of the annular thin-walled wire portion 8 is made easier and the tubular wall 3 is closed. Can be opened more easily.

[0030]

As described above, according to the present invention, a synthetic resin spout body having a tubular portion whose inside is closed by a closing wall, and a cap fitted to the outer periphery of the spigot body. In the stopper of the container, which is formed by tearing the thin line portion provided on the closing wall that closes the tubular portion and removing the closing wall surrounded by the thin line portion, closing the tubular portion The closing wall has a rising wall portion located below the tubular portion and connected to the upper side of the rising tubular portion so that at least a part of the periphery thereof faces the tubular portion, and The thin wall portion provided on the closing wall is composed of two inner and outer thin wire portions whose one ends are connected to each other. An annular portion is formed by connecting to either the thin line portion inside or outside the starting end side, The side thin-walled wire portion is formed so as to proceed substantially in the same direction as the outer thin-walled wire portion in the same direction and to stop at the tip of the outer thin-walled wire portion at a position beyond the connecting portion of the tip of the outer thin-walled wire portion. The connecting portion that is the starting end of the two thin-walled wire portions that form the portion is formed on the rising wall portion of the closing wall, and the hooked body is provided on the rising wall portion of the closing wall inside the connecting portion, An axially projecting core body is provided in the cap, and the outside of the core body is hooked to the hooked body by rotating the cap in one direction, and the annular thin wire portion is cut off from the connecting portion. Since the body is provided, by rotating the cap in one direction, the hook body on the cap side catches on the hooked body of the closing wall, and as the cap rotates, the annular thin line portion provided on the closing wall is configured. Two to do Dissected from the connecting portion to be the beginning of the thin line portion, it is possible to cut open the closing wall in the annular portion formed outside the thin line portion. When tearing the annular thin wire portion, the closing wall that closes the tubular portion is located below the tubular portion, and rises so that at least a part of its periphery faces the tubular portion. It has a rising wall portion that is connected to the upper side of the tubular portion, and since the rising wall portion is formed with a connecting portion that is the starting end of the two thin-walled wire portions that form the annular thin-walled wire portion, the cut-out portion is formed. The continuous band is wrapped around the core projecting in the axial direction in the cap, so that the tearing force acts near the tearing position of the thin annular wire portion, facilitating the tearing of the thin annular wire portion, and Since the closing wall that closes the plug can be easily opened, the mouth plug can be easily opened.

[Brief description of drawings]

FIG. 1 is a front view showing a first example of an embodiment of a spout of a container according to the present invention.

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

3 is a sectional view taken along line BB of FIG.

FIG. 4 is a development view showing the shape of a thin line portion formed on the closing wall in the first example.

FIG. 5 is a perspective view showing another example of the hooked body and the hooked body.

FIG. 6 is a partially cutaway perspective view showing another example of the core body provided in the cap as seen from the opening side.

FIG. 7 is a cross-sectional view of the second example of the embodiment of the stopper of the container according to the present invention, which is taken along the same portion as FIG. 2 of the first example.

8 is a cross-sectional view taken along the line CC of FIG.

FIG. 9 is a development view showing the shape of a thin line portion formed on the closing wall in the second example.

[Explanation of symbols]

1 spout body 2 Blocking wall 2a Rising wall 2b Bottom wall 3 tubular part 4 Flange part 5 caps 5a tubular part 6 screw threads 7 screw groove 8 Annular thin wire 8a Outer thin line part 8b Inner thin line 9 connection 10 Annular part 11 Connection site 12 Hook 13 core 13a pillar 14 Hook 14a bulging head 14b neck 15a thin neck 15b Ring part 16 compound holes 16a wide hole 16b narrow hole

Claims (3)

[Claims] 1. A plug main body made of a synthetic resin having a tubular portion whose inside is closed by a closing wall, and a cap fitted to the outer periphery of the plug main body to close the tubular portion. In the stopper of a container opened by removing the closing wall surrounded by the thin line portion by tearing the thin line portion provided on the closing wall, the closing wall closing the tubular portion is below the tubular portion. Has a rising wall portion that is located on the side and that is connected to the upper side of the rising tubular portion so that at least a part of its periphery faces the tubular portion, and the thin line portion provided on the closing wall It is composed of two inner and outer thin-walled parts that are connected at one end, and the outer thin-walled part proceeds in a substantially circumferential direction with the connecting part as a starting end, and its tip is on the starting end side. The inner thin-walled wire portion is connected to the wire portion to form an annular portion, and the inner thin-walled wire portion is the outer thin-walled wire. Two thin-walled wire portions that are formed in parallel with each other and extend in the same direction so that their tips stop at positions beyond the connecting portions of the tips of the outer thin-walled wire portions in the annular portion, and that constitute the annular thin-walled wire portion. Is formed on the rising wall portion of the closing wall, a hooked body is provided on the rising wall portion of the closing wall inside the connecting portion, and a core projecting in the axial direction is provided in the cap. The body is set up,
On the outside of the core body, there is provided a hook body that is caught in the hook body by rotating the cap in one direction and cuts the annular thin wire portion from the connecting portion. . 2. The closing wall that closes the tubular portion has a tubular rising wall portion that rises so that the entire circumference thereof faces the tubular portion and that is connected to the upper side of the tubular portion, The spout of a container according to claim 1, wherein the annular thin line portion is formed on a cylindrical rising wall portion. 3. The hooked body provided on the rising wall portion of the closing wall and / or the hooked body provided outside the core body in the cap elastically deforms when the cap is rotated in the other direction. The cap of the container according to claim 1 or 2, wherein the cap is rotatable.