JPH08151042A - Pull tab for liquid container - Google Patents

Abstract

PURPOSE: To obtain a pull tab for liquid container which retains a sufficiently opened condition even if the pull tab stays on the container after opening and does not cover a pour opening and does not become an obstacle in drinking and which is simple in structure and easy to manufacture. CONSTITUTION: A pull tab 10 is shaped like a sheet and, by cutting the sheet into a form having a ring-like peripheral edge excluding the connecting part 15, the structure of the pull tab is separated into the outer part as a tab part 20 and the inner part as a main body part 30. The end part opposite to the connecting part 15 of the main body part 30 is bent back to the rear face side along a bending line 33 intersecting the main body part at about 45 degrees with respect to a line connecting the end part and the connecting part 15, the pull tab 10 is thereafter placed on a pour opening 83, the face of the bent-back part is attached to the surface of an upper lid 81 of a liquid container 80 and the pour opening 83 is sealed with the main body part 30 between the bent-back part and the connecting part 15.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid storage container pull tab attached to a spout of a liquid storage container.

[0002]

2. Description of the Related Art Conventionally, a liquid storage container formed mainly of paper or plastic is provided with a spout, and the spout is made of a film-like sheet or resin. A lid material such as a pull tab is attached and sealed. Then, the opening is performed by peeling off the entire lid material.

However, if the entire lid material is peeled off, the spout will always be open, and the contents such as juice will easily spill. In addition, the removed lid material becomes dust different from the liquid storage container, and easily throwing away the dust causes a dust problem.

In order to solve these problems, it is possible to peel off only a part of the lid member. In this case, when the released lid member is released, the restoring force of the lid member itself ( The so-called "waist") had a problem that the lid member again covered the spout.

Further, when only a part of the lid material is peeled off, when the mouth is directly attached to the spout to drink the contents, the lid material peeled and pulled up hits the nose and becomes an obstacle. There were also problems.

The present invention has been made in view of the above points, and an object thereof is to maintain a sufficiently opened state even when the pull tab after opening remains in the container, does not cover the spout, and is an obstacle to drinking. Another object of the present invention is to provide a pull tab for a liquid storage container which has a simple structure and is easy to manufacture.

[0007]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides a liquid storage container which is attached so as to cover and seal the spout of a liquid storage container formed mainly of paper or plastic. In the pull tab for use in the above, the pull tab has a sheet shape, and the periphery thereof is cut into a ring shape leaving a connecting portion, so that an outer portion thereof is configured as a handle portion and an inner portion thereof is configured as a main body portion, and the connecting portion of the main body portion is formed. The end on the opposite side is folded back to the back side by a line oblique to the line connecting the end and the connecting portion, and the pull tab is placed on the pouring port, and the lower surface of the folded back portion is filled with the liquid. The container was adhered to the surface of the container, and the pouring port was closed by the portion of the main body portion between the folded-back portion and the connecting portion to be hermetically sealed.

[0008]

When the pull tab is opened, the folded portion of the main body portion keeps the expanded state as it is, so that the pull tab does not try to move in the direction to close the spout again (or its force is small). Therefore, a sufficiently opened state can be easily maintained. Further, since the end of the main body opposite to the connecting part is folded back to the back side with an oblique line with respect to the line connecting the end and the connecting part, the opened pull tab faces laterally and is locked. To be done. Therefore, even when the contents are drunk by directly attaching the spout to the spout, the pull tab that is pulled up and locked does not hit the nose and become an obstacle.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings. 1A and 1B are views showing a pull tab for a liquid storage container according to an embodiment of the present invention. FIG. 1A is a perspective view, FIG. 1B is a plan view, and FIG. ) A
FIG.

As shown in FIG. 1, the pull tab 10 is attached so as to cover and seal the spout 83 provided on the upper lid 81 of the liquid container 80 formed mainly of paper or plastic. .

Here, the pull tab 10 is formed of a resin sheet having an outer shape of a substantially elliptical shape, and the periphery thereof is cut into a ring shape (cut line 17) leaving the connecting portion 15 and the outer portion thereof is handled. And the inner part is the body part 30
And

An end portion of the main body portion 30 opposite to the connecting portion 15 is a fold line 33 obliquely inclined by about 45 degrees with respect to a line connecting the end portion and the connecting portion 15 (longitudinal direction of the pull tab 10). Has been folded back to. The folded part is the fixed part 3
1 (indicated by a dotted line).

In other words, the bending line 33 is a direction in which the pouring port 83 of the liquid container 80 is tilted when the pouring port 83 is taken and the contents are drunk (A- in FIG. 1B).
It is formed so as to form a line oblique to the direction of the line A) by about 45 degrees.

At the center of the bending line 33, a locking piece 35 protruding in an arc shape is provided.

Next, the manufacture of the pull tab 10 and the attachment to the liquid container 80 are performed as follows.

That is, first, as shown in FIG. 4, the pull tab 10
The step of punching out the outer shape of the sheet from the sheet and the step of providing the cut lines 17 and 19 are performed by one cutting step.

Next, the line connecting the both ends of the cut line 19 is used as a bending line 33 (see FIG. 1), and the fixing portion 31 is bent toward the back surface side of the main body portion 30 (direction of arrow in FIG. 4).

Next, the pull tab 10 is placed on the upper lid 81 of the liquid container 80 as shown in FIG. 1, and the pouring port 83 is formed at the portion of the main body 30 between the folded fixed portion 31 and the connecting portion 15. The fixing portion 31 of the pull tab 10 with the cover
The lower surface of is fixed to the upper lid 81 by adhesion or welding. The surface to be fixed is shown by the dotted diagonal line in FIG.

On the other hand, as shown in FIG. 1 (c), a thin resin film 87 is adhered to the inner surface of the liquid container 80 and the surface of the lower surface of the pull tab 10 facing the spout 83 to seal the spout 83. Stop. This completes the attachment of the pull tab 10.

Next, FIGS. 2A to 2C are views showing the opening operation of the pull tab 10. That is, first, in FIG.
As shown in (a), the handle portion 20 of the pull tab 10 is pulled up with the connecting portion 15 as a fulcrum.

When the handle portion 20 is further pulled up, the body portion 30 is pulled up from the upper lid 81 with the vicinity of the bending line 33 of the fixed portion 31 as a fulcrum, as shown in FIG. 2 (b). At this time, the film 87 (see FIG. 1C) attached to the lower surface of the main body 30 is peeled off in the shape of the spout 83, and the spout 83 is opened.

In this state, the handle portion 20 is further lifted and pulled toward the flange 85 on the outer periphery of the upper lid 81 to lock the handle portion 20 to the flange 85 of the upper lid 81 as shown in FIG. 2C. . At this time, the tip of the locking piece 35 pivots on the upper lid 81, enters the fixed portion 31 side, and abuts and locks on the upper lid 81.

In the present invention, when the pull tab 10 is opened as shown in FIG. 2 (c), the folded portion of the main body portion 30 tries to maintain the expanded state, so that the pull tab 10 is poured again. It does not try to move the mouth 83 in the closing direction (or its force is small), so that a sufficiently opened state can be easily maintained, and the spout 83 can be opened again.
Does not cover.

Particularly in the case of this embodiment, since the locking piece 35 is provided at the bending line 33, when the pull tab 10 is pulled up as described above, the locking piece 35 enters the side of the fixed portion 31 and the upper lid. Since it abuts and locks on 81, the pull-tab 10 can be more reliably maintained in a sufficiently opened state.

By the way, as described above, the main body portion 30 is pulled up with the vicinity of the bending line 33 as a fulcrum, but since the bending line 33 is inclined about 45 degrees with respect to the longitudinal direction of the pull tab 10 as described above, it is pulled up. Body part 30
Are locked in a lateral direction, which is different from the initial longitudinal direction of the pull tab 10 by about 90 degrees as shown in FIGS. 2 (c) and 3.

Therefore, even when the mouth is directly attached to the spout 83 to drink the contents, the pull tab 10 that is pulled up and locked does not hit the nose and become an obstacle.

Although one embodiment of the present invention has been described in detail above, the present invention is not limited to this. For example, the structure in which the spout 83 is sealed by the pull tab 10 is not limited to the above structure, and various other sealing structures can be applied.

Needless to say, the angle of inclination of the bending line 33 may be an angle other than about 45 degrees.

[0029]

As described in detail above, the pull tab for a liquid container according to the present invention has the following excellent effects. Even when the pull tab after opening is still connected to the liquid storage container, a sufficiently opened state can be easily maintained, and the spout 83 is not covered again.

The pull tab does not become dust separately from the liquid storage container.

When the contents are drunk with the pull tab open, since the pull tab is located in the lateral direction of the spout 83,
The pull tab does not touch the nose and does not get in the way.

Since the sheet can be manufactured simply by cutting it, the manufacturing is easy.

[Brief description of drawings]

1A and 1B are views showing a pull tab for a liquid storage container according to an embodiment of the present invention, in which FIG. 1A is a perspective view and FIG.
Is a plan view, and FIG. 6C is an enlarged view taken along the line AA of FIG.

2A to 2C are views showing an opening operation of the pull tab 10. FIG.

FIG. 3 is a plan view showing a state in which the pull tab 10 is opened and locked.

FIG. 4 is a view for explaining the manufacturing process of the pull tab 10.

[Explanation of symbols]

 10 Pull Tab 15 Connection Part 17, 19 Cut Line 20 Handle Part 30 Main Body Part 33 Bent Line 80 Liquid Storage Container 83 Spout

Claims (1)

[Claims] 1. A pull tab for a liquid storage container, which is attached to cover and seal a spout of a liquid storage container formed mainly of paper or plastic, wherein the pull tab is sheet-like and has a periphery thereof. The outer part is formed as a handle part and the inner part is formed as a main body part by cutting in a ring shape leaving the connecting part, and the end part on the side opposite to the connecting part of the main body part is connected to the end part and the connecting part. Fold back to the back side with a line oblique to the connecting line, further place this pull tab on the spout and adhere the lower surface of the folded part to the surface of the liquid storage container, and connect the folded part and the connecting part. A pull tab for a liquid storage container, characterized in that the pouring port is closed and sealed at a portion of a main body portion between them.