JP2593374Y2 - Packaging containers - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a synthetic resin packaging container comprising an upwardly opening wide-mouthed container body and a lid which is fitted into and removed from the opening of the container body and closes the opening. Things.

[0002]

2. Description of the Related Art A packaging container made of synthetic resin or paper for packaging foods and the like,
A container body and a lid body, wherein the lid body is formed separately from the container body, or the lid body is integrally connected to an opening edge of the container body via a flexible hinge portion; The contents can be dispensed by fitting the lid into and out of the opening of the container body.

[0003] On the other hand, after the product has been packaged, it is necessary to prevent tampering during distribution and to seal it in order to keep the lid closed.
Generally, the entire container or the opening after packaging is covered with a sealing cap made of a heat-shrinkable film so that the sealing cap cannot be opened unless the sealing cap is cut apart. However, providing a sealing cap separately from the lid in this way results in wasteful use of resources due to overpacking, and an increase in the trouble of garbage disposal after opening.
Further, there is a problem that the packaging process becomes complicated.

On the other hand, Japanese Utility Model Publication No. Sho 56-141136 discloses a paper.
In the container body and the lid body manufactured by folding, the lid body
The tongue piece is integrated with the opposite part of the opening edge of
The tongues are attached to the container body and sealed.
It is shown. In this container, one tongue is removed from the container body
Opened by peeling, the base of the other tongue
The lid can be opened and closed by bending the part
Wear. This container requires only a tongue on the lid.
There is an advantage that the structure can be simplified. By the way, put the product in the container
When packaging automatically, transfer the container body while loading
Then, it will be fixed by covering the lid,
In JP-A-56-141136, the tongue of the lid is the outer surface of the container body.
Since the lid is formed in advance so as to be in close contact with the
When placing the body, the tongue hits the opening edge of the container body.
May be folded back inside.
If applied to the packaging process, problems may occur
Problem. Also, with the tongue pieces overlapped,
Space for transport and storage because they cannot be stacked
There was also a problem with the inefficient use of the system. The purpose of the present invention is to solve this problem.

[0005]

SUMMARY OF THE INVENTION The present invention consists upward the container body made of open synthetic resin, the synthetic resin lid for closing this be out fitting in the opening of the container body, these lids Either the body or the container
To be fixed to the other outer surface of the container body by appropriate means
Therefore, the packaging container provided with the tongue piece for keeping the lid closed
Pertains to vessels . And a lid on which the tongue piece is formed
The body or container body is manufactured by injection molding of synthetic resin.
In the production by this injection molding, the tongue piece,
It is formed so as to spread outward from the closed state.

[0006]

[Operation and Effect of invention] With this configuration, or peeled off tongue from containers <br/> body or lid, because it is impossible to open unless such Ru tearing pull the appropriate sites of the tongue When opened at the distribution stage, the fact of opening can be easily confirmed visually . In other words, the tongue retains the sealing function.

As described above, according to the present invention, packaging can be performed while maintaining the sealing function without requiring a separate sealing member, so that materials for packaging can be saved to save resources and reduce the time and effort of garbage disposal. Can contribute, and the tongue is
For example since it is possible to fix easily the container body or the lid by a method such as bonding by high-frequency sealing method or adhesive, Ru can also contribute to a reduction in packaging costs by simplifying the packaging process.
Then, the tongue for sealing is spread outward in advance from the closed state.
The container body with a lid.
It is easy to attach the tongue,
The piece is held so as to overlap the container body or lid.
Therefore, the tongue piece does not interfere after packaging. Follow
Therefore, the container according to the present invention is suitable for automatic packaging.
It is profit. In addition, the lid or the container body
It is also possible to stack
Also, space can be effectively used for storage.
Furthermore, the tongue piece was manufactured in a state of being spread outward.
Internal stress that tends to return to the original state.
Therefore, when the tongue is peeled off at the distribution stage,
The tongue is separated from the container body or lid,
There is also an advantage that it is easier to confirm the fact of unauthorized opening. Claim
When configured as in item 2, two tongues of the tongue
It can be opened by tearing the sandwiched part
Can be easily opened, and after opening the tongue
Can be kept from extending for a long time
The tongue is not in the way .

[0008]

Next, an embodiment of the present invention will be described with reference to the drawings. FIGS. 1 and 2 show a first embodiment. In this embodiment, a container body 1 having a rectangular shape in a plan view and a lid 2 fitted to the container body 1 are both formed separately from synthetic resin. The tongue pieces 3 each having an appropriate width and an appropriate length are connected to the four peripheral side plates 2a of the lid 2 by integral molding.
And an appropriate means such as bonding by heat fusing method or an adhesive such as a high-frequency sealing method, (indicating sticking point at reference numeral 4) which are fixed in dots on the outer peripheral surface of the container body 1.

Each of the tongue pieces 3 is formed to be thinner than the other parts of the lid 2, but may have the same thickness as the other parts. Opposite 2 of 2
It is sufficient to provide them on the side plates 2a. Further, 1 in the lid 2
A plurality of tongue pieces 3 may be provided on one side plate 2a. Furthermore, it is needless to say that the tongue piece 3 can be fixed to the container main body 1 not only in a dot shape but also in an appropriate form such as a linear shape, a sewing line shape, or a scattered point shape.

In the above construction, each tongue 3 is pulled substantially upward as shown by a dashed line in FIG.
Can be opened by pulling it away from the container body 1, and after opening, the lid 2 can be freely fitted to and removed from the container body 1. Therefore, the tongue 3 cannot be opened unless the tongue piece 3 is pulled away from the container body 1, and the fact is clear at a glance when the tongue piece 3 is opened, so that the sealing function can be reliably maintained.

Further, since no separate member is required for sealing, the package can be packaged with a sealing function, while contributing to resource saving and reduction of trash disposal. Incidentally, the location of the base of the tongue 3, and engraved perforation lines may also be torn by pulling the respective tongue 3 after opening, In this way, the lid after opening 2
There is an advantage that handling and aesthetics can be improved.

As shown in FIG. 3 , the lid 2 is formed by injection molding using a pair of dies 6, 7 having cavities 5 formed on the mating surfaces and injecting a molten synthetic resin into the cavities 5. It is produced I'm in. In this case, the tongue piece 3 is formed in a wing-like spread state, so that a large number of lids 2 can be overlapped, so that the space for transportation and storage can be effectively used.
Wear. In the automatic packaging process, the lid 2 is attached to the container body 1.
When the tongue piece 3 is folded inward
Since automatic packaging does not occur, automatic packaging should be
Can be.

In the second embodiment shown in FIG. 4, two sewing lines 8 are formed on each tongue 3 so that the tongue 3 can be separated up and down. The main body 1 is fixed, and a portion sandwiched between the two sewing lines 8 and 8 is pulled to the side, and the tongue piece 3 is cut along the two sewing lines 8 to be opened.

As shown by the dashed line in this embodiment, the width and length of the tongue piece 3 can be appropriately set, and when the tongue piece 3 is provided on the lid 2, the tongue piece 3 is It is not necessary to provide the tongue pieces 3 on the four circumferences, and the tongue pieces 3 may be provided so that the tongue pieces 3 are fixed to the container body 1 so that the closed state is maintained. The third embodiment shown in FIG. 5 and FIG.
Are provided with tongue pieces 3 ', 3 "on each of the two side plates 2a opposed to each other, and the width of one tongue piece 3' of both tongue pieces 3 ', 3" is increased. With two perforation lines 8 for engraving on the other tongue 3 ".
Only the other tongue 3 "is opened by tearing it off at the perforation line 8, leaving one of the tongues 3 ' as it is to form a flexible hinge.

In this case, after opening, the other tongue piece 3 "
Since the base of the tongue 3 "remains in a state of being connected to the lid 2, the base of the other tongue 3" can be used as a knob when the lid is opened. The fourth embodiment shown in FIG. One side of the lid 2 and one side of the container body 1 are integrally connected via a bendable hinge 9, and the tongue 3 is attached to the other side of the lid 2 opposite to the hinge 9. And the tongue piece 3 is fixed to the container body 1 by an appropriate means.

Also in the fourth embodiment, the container body 1 and the lid 2 are manufactured by injection molding . Figures 10-11
As shown in the figure, on the outer surface of the upper end portion of two opposed side plates of the container body 1, tongue pieces 3 extending to the outer surface of the lid 2 are integrally formed, and each tongue 3 is attached to the lid 2. This is a fifth embodiment in which the outer surface is fixed to the outer surface by appropriate means. In this embodiment, the tongue piece 3 is cut along the perforation line 8.

[Brief description of the drawings]

FIG. 1 is a perspective view of a first embodiment.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is a cross-sectional view illustrating a method of manufacturing a lid according to the first embodiment.

FIG. 4 is a perspective view of a second embodiment.

FIG. 5 is a perspective view of a third embodiment.

6 is a sectional view taken along line VI-VI of FIG.

FIG. 7 is a sectional view of a fourth embodiment.

FIG. 8 is a perspective view of a fifth embodiment.

9 is a sectional view taken along line IX-IX of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Container main body 2 Lid body 3,3 ', 3 "Tongue piece 8 Sewing wire

Claims (2)

(57) [Scope of request for utility model registration] 1. A synthetic resin for closing a container body made of open synthetic resin upward, this be out fitting in the opening of the container body
It consists of a manufacturing of the lid, in either one of these lid and the container body, the other of the outer surface of the said lid and container body
To keep the lid closed
A packaging container provided with a tongue piece integrally, wherein a lid or a container body on which the tongue piece is formed is made of synthetic resin.
It is manufactured by extrusion molding, and this injection molding
At the time, the tongue piece spread outside than the closed state
A packaging container formed in a state . (2) To cut the tongue piece into the tongue piece
Two perforation lines are formed, and the tongue is located ahead of the perforation line.
The part near the edge is used as a fixing part to the container body or lid.
The packaging container according to claim 1, wherein: