JPS6215424B2 - - Google Patents

Description

[Detailed Description of the Invention] (a) Purpose of the Invention [Field of Industrial Application] The present invention relates to a structure for taking out the contents of standing pouches, cans, and other containers that are filled and sealed with beverages, etc.

[Conventional technology]

It is well known that standing pouches, cans, and other containers for filling and sealing beverages and other articles are sometimes configured as easy-open containers that can be easily opened. In general, such containers have a tab material attached to a lid on which a score is formed, and when taking out the contents, the tab material is pulled up and the can lid etc. is torn from the score to open the drinking spout, or the lid is removed. A hole for taking out the contents is made in the container body in advance, and this hole is closed by pasting a tab material, etc., and when taking out the contents, the tab material is peeled off and the contents are taken out. It is configured to open a hole for use.

[Problem that the invention seeks to solve]

However, in such easy-open containers, there is a risk that the torn pieces and tab material may be separated from the container and discarded after opening, polluting the environment, and there is a need for the development of a technology to counter this problem.

As a solution to this problem, the applicant of this application previously proposed an improved technology (Patent Application Publication No.
62446, 1981 Patent Application Publication No. 103841 and 1988 Patent Application Publication No. 152146). This newly proposed container can be used even after opening the drinking spout, etc.
Although the tab material does not separate from the container body and has a remarkable effect on preventing environmental pollution and improving opening operability, it is especially important when the container is made of flexible material. When the tab material is peeled off for opening, there is a risk that the container may be deformed and the liquid contents may spray out from the opening, and it is desirable to develop a technique to prevent such spraying.

This invention was made in view of the above circumstances, and even after opening the content outlet, the tab material does not separate from the container and remains on the container, thus protecting the environment. It is an object of the present invention to provide a structure for taking out contents of a container, which is free from contamination and can avoid spouting of the contents when opening the container.

(B) Structure of the Invention [Means for Solving the Problem] Corresponding to this object, the structure of the contents extraction portion of the container of the present invention includes a hole for the contents extraction opening and a hole for attaching the opening tab material. A base material having a first hole and a second hole for attaching a gripping tab material, and a base material having a hole for the content outlet and a second hole for attaching the content outlet, which are attached to the inner surface of the base material. an inner lining material that closes the hole and the second hole, a knob portion, a closing portion, and an attachment portion, and a hole for the content outlet and the first an opening located so as to cover the hole in which the closing part is attached to the inner adhesive material through the hole for the content outlet, and the attachment part is attached to the inner adhesive material through the first hole; a tab material, a tab material, a tab material, and a mounting part, the material is located on the outer surface of the base material so as to cover the second hole, and the mounting part is pasted to the inner material through the second hole. a gripping tab material, and the hole for the content extraction port, the first hole, and the second hole are arranged on an imaginary straight line with the hole for the content extraction port in between. formed in the base material, the end of the first hole facing the content outlet hole is substantially perpendicular to the imaginary straight line, and the second hole is a hole for the content outlet; The end facing toward is substantially perpendicular to the imaginary straight line, and by pulling up the tab of the opening tab material, the inner lining material corresponding to the hole for taking out the contents is destroyed and the contents are removed. It is characterized by being configured to have a hole for an extraction port.

The details of this invention will be explained below with reference to the drawings showing one embodiment.

In FIGS. 1 and 2, 1 is a standing pouch, and a front piece 2 of the standing pouch 1 is formed with a straw insertion opening 3 serving as an opening for taking out contents.

The structure of the straw insertion opening 3 is shown in Fig. 1 and Fig. 2.
As shown in the drawings and FIG. 3, a straw insertion hole 6 is formed through the base material 5 constituting the front piece 2, and a first hole 7 for attaching an opening tab material is adjacent to the straw insertion hole 6. A second hole 8 for attaching a gripping tab is formed therethrough. The straw insertion hole 6, the first hole 7, and the second hole 8 are aligned in a peeling direction 10 of the opening tab material 9, which is a straight line in plan view. The end a of the first hole 7 facing the straw insertion hole 6 forms a straight line substantially perpendicular to the peeling direction 10, and the end d of the second hole 8 facing the straw insertion hole 6 also forms a straight line in the peeling direction 10. It forms an almost right-angled straight line.

The straw insertion hole 6, the first hole 7 and the second hole 8 are connected to the inner adhesive material 11 (fourth hole) attached to the inner surface of the base material 5.
(Figure).

An opening tab material 9 and a gripping tab material 12 are stacked on the outer surface of the base material 5. The opening tab material 9 is
As shown in FIG. 5, the knob part 13 and the closing part 14
and a mounting part 15, which is located on the outer surface of the base material 5 so as to cover the straw insertion hole 6, the first hole 7, and the second hole 8, and the closing part 14 allows the inner lining material to pass through the straw insertion hole 6. 11, and the attachment part 15 is pasted to the inner patch material 11 through the first hole 7. As shown in FIG. 5, the gripping tab material 12 has a grip portion 16 and a mounting portion 17, and is attached to the inner patch material 11 through the second hole 8. In this embodiment, the opening tab material 9 and the gripping tab material 12 are formed on a common tab material piece 18, and both are separated by a U-shaped cut 21, and Although the tab material 9 and the gripping tab material 12 are connected at the connecting portion 22 and are integrated, they may be separated and configured as separate bodies.

[Effect]

The opening operation for removing the liquid contents from the straw insertion opening 3 configured as described above is as follows. As shown in FIGS. 6 and 7, first, use one hand to hold the grip portion 16 of the gripping tab material 12.
In this state, if you pinch the grip part 13 of the opening tab material 9 with your other hand and pull it up, the pulling force will act on the opening tab material 9, and the reaction force will be applied to the gripping tab material 12. It acts on The force acting on the opening tab material 9 is first applied to the straw insertion hole 6.
acts concentratedly only on the inner lining material 11 at one end b,
An initial opening is formed here. Next, when the opening tab material 9 is pulled up, the force required to pull it up acts along the edge of the straw insertion hole 6,
The broken part of the inner adhesive material 11 gradually peels off in plan view direction 1.
0, and finally reaches the other end c of the straw insertion hole 6, thereby completing the opening of the straw insertion hole 6. However, after the straw insertion hole 6 is opened, even if the opening tab material 9 is further pulled up, the inner lining material 11 attached to the opening tab material 9 and the gripping tab material 12 will not close to the first hole 7. In the second hole 8, the opening tab material 8 and the gripping tab material 12 are not destroyed due to the following reasons.
Do not separate from In this way, on the one hand, the inner lining material 11 is broken at the straw insertion hole 6 to allow the straw insertion hole 6 to open, and on the other hand, the inner lining material 11 is broken at the first hole 7 and the second hole 8. , the reason why both the tab materials 9 and 12 are not allowed to separate is that in this invention, the force required to destroy the inner material 11 in the straw insertion hole 6 is larger than that of the inner material in the first hole 7 and the second hole 8. This is because the force is smaller than the force required to destroy 11.

To configure so that the force required to destroy the inner lining material 11 in the straw insertion hole 6 is smaller than the force required to destroy the inner lining material 11 in the first hole 7 and the second hole 8. is inner lining material 1
Although it is conceivable to partially change the structure and strength of the straw insertion port 1 or various other means, this is achieved by configuring the structure of the straw insertion opening 3 as described below. That is, the edge portion a of the first hole 7 and the edge portion d of the second hole 8 are configured as straight lines substantially perpendicular to the peeling direction 10, which is a straight line in plan view.

In the straw insertion opening 3 having such a configuration, when the straw insertion hole 6 is opened, the force that pulls up the opening tab material 9 is concentrated on the portion along the edge of the straw insertion hole 6. However, the load point sequentially moves to the starting end b, the middle e, and the final end c, but in each case, the point where the imaginary line perpendicular to the peeling direction in plan intersects the edge of the straw insertion hole 6 (for example, the point a, The lining material 11 is easily destroyed because it acts intensively on parts b and c) and the breaking stress generated there is extremely large. However, since the end a of the first hole 7 forms a straight line perpendicular to the peeling direction 10 in plan view, the tensile force acts in a distributed manner on the line, and therefore the end a
The breaking stress generated in the straw insertion hole 6 is smaller than that in the other parts a, b, and c, making it difficult to break the inner lining material 11. Therefore, when the opening tab material 9 is pulled up, even if the inner lining material 11 is broken at the straw insertion hole 6 and opened, the first
No breakage occurs in the hole 7, and the opening tab material 9 does not separate from the base material 5. This means that the gripping tab material 12 is subjected to a reaction force of the same magnitude as the tensile force.
The same is true for the second line, which is a straight line.
The load is distributed even at the end d of the hole 8, and the lining material 1
1 is not destroyed, and the gripping tab material 12 is not separated from the base material 5. This is clear from the results of experiments. The straw insertion hole 6 and the first hole 7 are
Although they may be formed separately in this manner, the above effect can also be achieved by connecting the straw insertion hole 6 and the first hole 7 as shown in FIG.

(C) Effects of the Invention In the contents removal section structure configured as described above, the tensile force and reaction force when peeling the tab material to open the tab material are applied only to the opening tab material 9 and the gripping tab material 12. Since the container body does not act on the container body, the container body will not be deformed when opened, even if the container body is made of a flexible material, and there is therefore no risk of the liquid contents spewing out. do not have.

(d) Other embodiments The embodiments described above are examples in which the present invention is applied to the straw insertion opening of a standing pouch, but other embodiments may also be applied to the contents removal opening of a cup container lid or a can lid. It can be applied as is. As is clear from the above description, according to the present invention, even after opening the content outlet, the tab material does not separate from the container and remains on the container.
Therefore, it is possible to obtain a structure for taking out the contents of the container, which is free from the risk of polluting the environment and which can avoid spouting out of the contents when the container is opened.

[Brief explanation of the drawing]

Figure 1 is a front view of the standing pouch, Figure 2 is a sectional view of the - section in Figure 1, Figure 3 is a front view showing the straw insertion opening of the front piece of the standing pouch, and Figure 4 is the inner lining material. , FIG. 5 is a front view showing the tab material piece, FIG. 6 is a front view showing the drinking spout in an open state, FIG. 7 is a cross-sectional view of the part shown in FIG. FIG. 2 is a front view showing the straw insertion opening of the front piece of the standing pouch. 1...Standing pouch, 2...Front piece, 3
...Straw insertion opening portion, 5...Base material, 6...Straw insertion hole, 7...First hole, 8...Second hole, 9...Tab material for opening, 10...Peeling direction, 11...Inner lining material, 1
2...Gripping tab material, 13, 16...Knob part, 1
4...Closing part, 15, 17... Attachment part, 21... Notch, 22... Connection part.

Claims (1)

[Claims] 1. A hole for a content outlet, a first hole for attaching an opening tab material, and a second hole for attaching a gripping tab material.
a base material in which a hole for the content outlet and a first hole are formed by adhering to the inner surface of the base material;
and an inner lining material that closes the hole and the second hole; 1, the closing part is attached to the inner adhesive material through the hole for the content outlet, and the attachment part is attached to the inner adhesive material through the first hole. It has an opening tab material, a knob part, and an attachment part, and is located on the outer surface of the base material to cover the second hole, and the attachment part is pasted to the inner adhesive material through the second hole. and a gripping tab material that is arranged such that the content outlet hole, the first hole, and the second hole are arranged on an imaginary straight line with the content outlet hole in between. is formed in the base material, the end of the first hole facing the content outlet hole is substantially perpendicular to the imaginary straight line, and the second
The end of the hole facing the content outlet hole is substantially perpendicular to the imaginary straight line, and corresponds to the content outlet hole by pulling up the tab of the opening tab material. A structure for taking out contents of a container, characterized in that the inner adhesive material is destroyed to open a hole for the contents taking out port. 2. The content take-out portion structure of a container according to claim 1, wherein the hole for the content take-out port and the first hole are formed in a connected manner. 3. The container contents removal structure according to claim 1 or 2, wherein the opening tab material and the gripping tab material are integrally formed.