JPH09110065A - Composite hinge type container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a container facilitating lid opening closing work easy to handle and properly holding content, by suppressing the lowering of the barrier properties of a container body. SOLUTION: A synthetic resin opening edge member 7 formed by an knsert molding method is integrally provided to the opening edge member 7 of the opening edge of a container body 2 based on paper 2 to be integrally provided to the synthetic resin opening edge member 7 and a lid and an opening and closing member 4 wherein a lid frame 10 made of a synthetic resin is partially provided to the peripheral edge of the lid 10 is connected to the attaching frame member 3 through the hinge 8 so as to open and close the upper surface of the container main body 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a composite hinge type container including a cup-shaped container body and an opening / closing member connected to the container body by a hinge.

[0002]

In recent years, non-combustible waste has increased in small containers used for containing food such as liquid beverages and snacks and for containing non-food containing powdered detergents and bath agents. There is a tendency to increase the usage rate of paper in consideration of the tendency to make the paper, and cover the opening of the cup-shaped container with paper as the main material with a thin laminated sheet, so that the container sealed by heat sealing around the opening will circulate Is becoming
When necessary, the laminated sheet is opened to take out the contents. In addition, in order to prevent the contents stored in the container from being affected by external conditions such as water and light, the packaging material itself used for the container is a paper composite material (laminated material) mainly composed of the paper. , For example, Jitsuko Sho 59-1762
As disclosed in Japanese Patent Publication No. 9, a device has been proposed in which each of the container body and the lid is composed of a frame made of a synthetic resin material and a panel mainly made of paper.

However, the container of the type in which the opening of the cup-shaped container is sealed with a laminated sheet cannot be easily re-closed once it is opened, and the rigidity of the opening edge of the container body is small and deforms. There was an inconvenience that it was easy. Then, in a container in which a panel mainly composed of paper is combined with a skeleton made of the above-mentioned synthetic resin material, a synthetic resin skeleton member is present between the panels in the body part of the container body, and the panel has the body part. Since it is divided into a plurality of parts around it, there is a problem that the functions of the paper composite material such as barrier properties cannot be fully utilized.

In view of the above circumstances, it is an object of the present invention to facilitate the opening and closing work when taking out a stored item, and to prevent the deterioration of the barrier property by connecting the paper composite material around the body of the container body. The purpose is to obtain a container that is easy to handle and that maintains the contents properly.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and a mold for molding a container body is provided at the periphery of an opening of the container body made of a composite material containing paper as a main material and having an upper surface opened. A synthetic resin opening edge member made of an insert molding method in which the resin is inserted and disposed to be injected into is integrally provided, and an annular mounting frame member made of synthetic resin is attached to the opening edge member, and paper is used as a main material. An opening / closing member integrally provided with a lid frame made of synthetic resin on the periphery of the lid plate by an insert molding method in which a lid plate made of a composite material is inserted and arranged in a molding die and resin is injected, It is an object of the present invention to provide a composite hinge type container characterized in that the opening / closing member covers the upper surface of the container body so as to be openable by being connected to a mounting frame member, and solves the above problems. In the present invention, a rupturable film may be heat-sealed on the opening edge member so that the upper surface of the container body is covered with the film material. Further, the mounting frame member may be integrally provided on the peripheral edge of an inner lid plate made of a composite material mainly made of paper and having an opening so that the inner lid member covers the upper surface of the container body. . Further, the inner lid member may be connected to the lid plate via a hinge.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described in detail with reference to the embodiments shown in FIGS. 1 and 2
Shows the first example. In the figure, reference numeral 1 denotes a composite hinge type container, which includes a container body 2 and a mounting frame member 3
And an opening / closing member 4 which functions as a lid. The container body 2 has a cup-like shape with an open upper surface, and includes a composite material a having a laminated structure including a paper layer and a barrier layer, which are main materials, and an outermost layer and an innermost layer, which are synthetic resin layers.
And a bottom portion 6 are formed. The body portion is formed into a tubular shape with one side open, and the opposite sides of the composite material are attached to each other, and the lower end of the body portion is integrally fastened together with the peripheral edge of the bottom portion in a wound state. . In this way, heat sealing between the body and the bottom is performed on the rolled-in portion of the body and the bottom in the same manner as the conventional bottom treatment of the paper cup, and the opposing synthetic resin layers are fused and integrated. Is. The composite material a has water resistance to the inside and outside of the container, a gas barrier property, and a light-shielding property, so that the container body 2 has continuous barrier properties on the outer peripheral surface and the bottom surface. . Specifically, an aluminum foil, an aluminum vapor deposition film, and a film obtained by vapor deposition of an inorganic substance such as silicon oxide are laminated on one surface of a paper material as a main material.

The body portion 5 extends along the periphery of the opening of the container body 2.
Is provided with an opening edge member 7 made of synthetic resin for covering the end surface (end surface of the composite material) of the composite material, and the opening edge member 7 has a container body previously placed in a mold and is injected with synthetic resin for injection molding. It is integrated by insert molding and the body part 5
Is heat-welded to the outermost and innermost synthetic resin layers. In this way, since the opening edge member is formed by insert molding and fusion with the synthetic resin layer on the body part side is achieved, the molding material of the opening edge member and the material of the synthetic resin layer of the body member are made of the same resin and the same kind. It is preferably a resin. Further, the opening edge member 7 is preferably hard, and when polyethylene resin is used, high density polyethylene is selected when rigidity is important, and medium to low density polyethylene is selected when mating property is important. However, when polypropylene resin is used, a homotype with little (or no) ethylene content can be selected, and in order to secure impact resistance and improve the durability of hinge 8 described later, a block with a large ethylene content is used. Select type or random type.

As shown in the drawing, the mounting frame member 3 is fitted around the opening edge member 7 and is formed in an annular shape. Since it is fitted into the opening edge member 7, it is made of a soft synthetic resin. Good to shape. The opening / closing member 4 is connected to the annular mounting frame member 3 via a hinge 8 of a self-hinge type,
The upper surface of the container body 2 is openably and closably covered. The opening / closing member 4 uses a disk-shaped lid plate 9 made of the composite material a as in the case of the container body 2. The lid plate 9 is inserted and arranged in a molding die to inject a resin by an insert molding method. An annular lid frame 10 made of synthetic resin is integrally provided on the peripheral edge of the lid plate 9. As shown, the lid frame 10 is connected to the hinge 8. That is, the lid frame 10 and the mounting frame member 3 are integrally molded. In the first example, the lid plate 9 is placed in a molding die and the lid frame 10 is mounted by the insert molding method. The frame member 3 and the frame member 3 are simultaneously molded with the hinge 8 interposed therebetween.

Since the lid frame 10 and the mounting frame member 3 are connected to each other as described above, the container 1 having the opening / closing member 4 can be obtained only by mounting the mounting frame member 3 on the opening edge member 7. Thus, the upper surface of the container body 2 is covered by the opening / closing member 4 so as to be openable and closable. Reference numeral 11 in the drawing is a tongue-shaped locking portion for hooking a finger when pulling up the opening / closing member 4, and locking the opening / closing member 4 by locking the opening edge member 7. It is formed integrally with the lid frame 10. Reference numeral 12 denotes a film that is easily broken by being attached to the opening edge member 7 by heat sealing, and the upper surface of the container body 2 is closed by this film 12, and the film can be broken or removed when necessary. It is provided so that 2 can be opened.

3 and 4 show a modification of the closure structure on the upper surface of the container body. In the example shown in FIGS. 3 and 4, instead of the film 12, a film 13, which is a relatively strong material, is heat-sealed to the opening edge member 7. As the film 13, it is preferable to use a film having an excellent barrier property such as an aluminum foil, an aluminum vapor deposition film, or a film obtained by vapor deposition of an inorganic substance such as silicon oxide. Then, as shown in FIG. 3, a plurality of through holes 14 are formed in the film 13 on the side facing the hinge 8, and the tab seal 15 covers the through holes 14 in a peelable manner. As shown in FIG. 4, one relatively large through hole 14 is opened, and the through hole 14 is covered with a tab seal 15 in a peelable manner. In this way, the upper surface of the container body is
It is possible to dispose a film 12 that can be easily broken and removed so as to be closed, or to dispose a tough film 13 so that a through hole formed in the film 13 can be peelably covered with a tab seal. It should be noted that a container having a structure in which a plurality of through holes are covered with a tab seal is suitable for accommodating a powdery substance and discharging an appropriate amount thereof. It is suitable for accommodating granular materials and discharging a proper amount. The container having a structure entirely covered with a film is suitable for containing a liquid substance, but it may be in the form of powder or particles, and the form of the contained substance is not limited.

5 and 6 show a second example. In this example, the upper surface of the container body 2 is covered with the inner lid plate 16 made of the composite material a. For example, as shown in FIG. 5, the mounting frame member 3 and the inner lid plate 16 that covers the upper surface of the container body 2 are integrally provided, and when the mounting frame member 3 and the lid frame 10 are molded, A disk-shaped composite material a for an inner lid plate that can cover the upper surface of the container body 2 is inserted and arranged in a molding die portion of a mounting frame member, and the composite material a for a lid plate is covered with a lid frame. The mounting frame member 3 is integrally disposed on the peripheral edge of the inner lid plate 16 by inserting and arranging it in the molding die part of FIG. Of course, by this molding, the opening / closing member 4 integrally provided with the lid frame 10 on the peripheral edge of the lid plate 9 can be obtained at the same time. And in the example shown in FIG. 5, the opening edge member 7
By fitting the mounting frame member 3 on the inner cover plate 16
The plurality of through holes 14 that cover the upper surface of the inner cover plate 16 and are opened in the inner lid plate 16 are detachably covered with a tab seal 15. FIG.
In the example shown in (1), one through hole 14 formed in the inner lid plate 16 is covered with a tab seal 15 in a peelable manner.

FIGS. 7 to 9 show a third example, which is different from the above example in that the lid plate 9 and the inner lid plate 16 are made of a continuous composite material a. As shown in FIG. 8, a disk-shaped composite material a serving as an inner lid plate 16 that covers the upper surface of the container body 2.
And the disk-shaped composite material a that becomes the lid plate 9 are continuous via the hinge 8 made of the composite material a, and when the mounting frame member 3 and the lid frame 10 are molded, the composite material a for the inner lid plate a Is inserted into the molding die portion of the mounting frame member, the composite material a for the lid plate is inserted into the molding die portion of the lid frame, the resin is injected, and the mounting frame member 3 is attached to the peripheral edge of the inner lid plate 16. And the lid plate 9
A lid frame 10 is integrally provided on the periphery of the. The molding die does not have the hinge-molded portion in the first and second examples, and the strip-shaped composite material a that connects the two disc-shaped composite materials is formed as the hinge 8 as described above. It is what Then, in the example shown in FIG. 7, by fitting the mounting frame member 3 to the opening edge member 7, the inner lid plate 16 covers the upper surface of the container body 2, and a plurality of through holes formed in the inner lid plate 16 are formed. The tab 14 is releasably covered with the tab seal 15, and in the example shown in FIG. 9, one through hole 14 formed in the inner cover plate 16 is releasably covered with the tab seal 15.

[0013]

As described above, according to the composite hinge type container of the present invention, the container body is inserted into the molding die at the peripheral edge of the opening of the container body which is made of a composite material containing paper as the main material and whose upper surface is open. A composite material whose main component is paper, in which a synthetic resin opening edge member made of an insert molding method of arranging and injecting resin is integrally provided, and an annular mounting frame member made of synthetic resin is attached to the opening edge member. An opening / closing member integrally provided with a lid frame made of synthetic resin on the periphery of the lid plate by an insert molding method in which a lid plate made of is inserted into a molding die and a resin is injected, and the mounting frame is provided via a hinge. It is characterized in that it is connected to a member and the opening / closing member covers the upper surface of the container body in an openable manner.

As described above, since the opening / closing member for covering the upper surface of the container body is provided, the container has a good resealing property.
Since the opening / closing member is composed of the composite member and the synthetic resin lid frame located in the periphery of the opening / closing member, the opening / closing member is light in weight, the opening / closing operation is good, and the container can be prevented from falling when the opening / closing member is opened. . Further, since the container body has the opening edge member, the shape of the opening edge of the container body is stable, and rigidity is given to the entire container. Furthermore, because the body and bottom are made of composite material and are not divided by synthetic resin aggregates, etc. like conventional composite containers,
The part where the function of the composite material is cut off does not occur in the container body. In addition, since there is no synthetic resin aggregate in the body, a wide display surface can be formed on the outer surface of the container, and the degree of freedom in decorativeness and information description by printing on a paper board is greatly improved. Come to do. Furthermore, the composite container has a high percentage of paper usage, and the incineration property at the time of disposal is improved. Further, the breakable film is heat-sealed to the opening edge member and the upper surface of the container body is covered with the film, so that the contents accommodated in the container body can be protected until the opening. If the mounting frame member is integrally provided on the peripheral edge of the inner lid plate made of the composite material and having an opening, the inner lid plate is less likely to be damaged when the powdery or granular contents are drawn out, and It has excellent practical effects such as being able to protect things and becoming a useful container.

[Brief description of the drawings]

FIG. 1 shows a first example of a composite hinge-type container according to the present invention, (a) is an explanatory view showing a state in which an opening / closing member is closed and seen from above, and (b) is an opening / closing member. FIG. 3 is an explanatory view showing a cross section in a state, and FIG. 3C is an explanatory view showing a side surface in a state in which the opening / closing member is closed.

FIG. 2 is an explanatory view showing a mounting frame member and an opening / closing member.

FIG. 3 shows an example in which a film has a plurality of through holes, (a) is an explanatory view showing a state in which the opening / closing member is closed and seen from above, and (b) is a state in which the opening / closing member is opened. It is explanatory drawing which shows a cross section.

FIG. 4 shows an example in which the film has one through hole, (a) is an explanatory view showing a state in which the opening / closing member is closed and seen from above, and (b) is a cross section in a state in which the opening / closing member is opened. FIG.

FIG. 5 shows a second example having a plurality of through holes,
(A) is an explanatory view showing a state in which the opening / closing member is closed and seen from above, and (B) is an explanatory view showing a cross section in a state in which the opening / closing member is opened.

FIG. 6 shows a second example having one through hole,
(A) is an explanatory view showing a state in which the opening / closing member is closed and seen from above, and (B) is an explanatory view showing a cross section in a state in which the opening / closing member is opened.

FIG. 7 shows a third example having a plurality of through holes,
(A) is an explanatory view showing a state in which the opening / closing member is closed and seen from above, and (B) is an explanatory view showing a cross section in a state in which the opening / closing member is opened.

FIG. 8 is an explanatory view showing a mounting frame member and an opening / closing member.

FIG. 9 shows a third example having one through hole,
(A) is an explanatory view showing a state in which the opening / closing member is closed and seen from above, and (B) is an explanatory view showing a cross section in a state in which the opening / closing member is opened.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Composite hinge type container 2 ... Container main body 3 ... Attachment frame member 4 ... Opening / closing member 5 ... Body part 6 ... Bottom part 7 ... Opening edge member 8 ... Hinge 9 ... Lid plate 10 ... Lid frame 14 ... Through hole 1
6 ... Inner lid plate a ... Composite material

Claims (4)

[Claims] 1. A synthetic resin made by an insert molding method in which a resin is injected by arranging the container main body in a molding die at the periphery of an opening of a container main body made of a composite material whose main material is paper and having an upper surface opened. The opening edge member is integrally provided, the annular mounting frame member made of synthetic resin is attached to the opening edge member, and the lid plate made of the composite material whose main material is paper is inserted and arranged in the molding die to inject the resin. By using an insert molding method, an opening / closing member integrally provided with a lid frame made of synthetic resin on the peripheral edge of the lid plate is connected to the mounting frame member via a hinge so that the opening / closing member opens the upper surface of the container body. A composite hinged container characterized by covering as much as possible. 2. The composite hinged container according to claim 1, wherein a rupturable film is heat-sealed to the opening edge member, and the upper surface of the container body is covered with the film. 3. The mounting frame member is integrally provided on a peripheral edge of an inner lid plate made of a composite material containing paper as a main material and having an opening, and the inner lid member covers an upper surface of a container body. 1. The composite hinged container according to 1. 4. The composite hinge-type container according to claim 3, wherein the inner lid member is continuous with the lid plate via a hinge.