JP3802114B2 - Sealed container - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a hermetically sealed container for powdered and granular contents with a fully opened head and a measuring spoon.
[0002]
[Prior art]
Sealed containers typified by small powder detergent cartons are required to be moisture-proof, prevent splashing of contents, fully open the head when in use, and have low economic costs. A sealed container having a square columnar shape or a rounded cylindrical column shape is used. For example, as shown in FIG. 5 (a), the upper end of the body 11 is top sealed with glassine paper 12 or the like having a sealing property to provide moisture resistance and scattering prevention, and with a hinge that can be fully opened. The sealed container 20 to which the cover lid 13 is attached is common. In the case of this container, the glassine paper 12 is removed at the time of initial opening, and after that, resealing is performed only with a cover lid.
Further, as shown in FIG. 5 (b), the barrel 11 side wall is made of a double-wall carton, and the strip-shaped tear piece 14 provided on the outer side wall of the upper part of the carton in three directions is torn horizontally, A sealed container 20 ′ is also used in which the contents can be immediately taken out without removing the top seal with glassine paper or the like by separating the body 11 and the cover lid 13 with the hinge and opening the cover lid 13. .
In either case, the measuring spoon is thrown and packaged with the contents.
[0003]
[Problems to be solved by the invention]
However, a carton that requires a top seal further uses a cover lid from above, so the packaging material is used twice, while the double-wall carton is also composed of paperboard with a double body, partly There is a problem of waste in terms of materials.
In addition, even after the initial opening, even if the cover lid is returned to its original position, there is a problem in that the sealing function is lost and the sealing function cannot be maintained.
In addition, the above-described sealed container 20 ′ has a problem that the contents are likely to scatter when initially opened.
The present invention has been made in view of the above-described problems, and aims to provide a resealable sealed container that uses a necessary and sufficient minimum amount of material and has a sealing property and an anti-scattering property even after initial opening. And
[0004]
[Means for Solving the Problems]
The above problems can be solved by the following present invention. That is, in the invention described in claim 1, the body is made of a material mainly made of paper and is formed in a prismatic shape or a square pillar shape with rounded corners, and the upper end of the body is made of a plastic having a flange on the outer periphery. It is sealed by being fitted inside a drop lid formed by sheet molding, and at least two opposing flanges of the drop lid are provided with folded pieces by extending a part thereof through weakening lines. Of the pieces, one of the folded pieces uses the weakening line as a hinge, and the other folded pieces are further provided with a knob piece on the outer side, and each folded piece is folded inward. In addition, the flange is bonded to the outer surface of the opposite body side wall so as to be peelable, and the flange has a gasket function and a weak adhesive packing agent fixed to face the upper end edge of the body. Features It consists of a sealed container that.
Further, the invention described in claim 2 is a shape corresponding to the handle of the measuring spoon as a locking means of the measuring spoon on the back surface of the dropping lid, and the side wall width thereof is slightly narrower than the handle width of the spoon. The sealed container according to claim 1, wherein a recessed portion is provided.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in more detail with reference to the drawings.
FIG. 1 is a perspective view of a sealed container 10 according to the present invention.
As shown in FIG. 1, the body 1 of the sealed container according to the present invention is formed of a cylindrical body mainly made of prismatic paper or rectangular pillar paper provided with rounded corners. Specifically, it may be a carton consisting of four side walls and a bottom, a paper cup with a slight taper, or a paper tube made of a plurality of paper layers with the bottom attached.
A drop lid 2 with a hinge is attached to the head. Further, folding pieces 3 are attached to the four sides of the body part 1, respectively, and have a function of attaching the drop lid 2 to the body part 1. One of the folded pieces acts as a hinge H, and can open and close the drop lid 2 as shown in FIG.
The left and right folded pieces 3 may be deleted.
[0006]
FIG. 2 is a plan view and a sectional view of the drop lid 2 according to the present invention. The drop lid 2 is formed by integrally forming a plastic sheet by vacuum forming or vacuum / pressure forming. As shown in FIG. 2A, a flange 5 facing the edge of the body portion is provided in the periphery. The flange 5 is extended on four sides of the straight portion to form four folded pieces 3, and the three folded pieces 3 are further extended to form a knob 4 except for one of them. Yes. Each folded piece 3 is provided with an adhesive region 5.
Although the number of the folded pieces 3 is four in FIG. 2A, the left and right folded pieces 3 may be deleted and only the folded pieces 3 on the front and rear sides facing each other may be provided.
Further, a weakening line 7 is provided between the flange 5 and the folded piece 3. This is a so-called lead ruled pattern in which the folding piece 3 is cut off from the lid 2 at the time of opening, and a thermal ruled line and a sewing machine blade are simultaneously applied. Can be separated.
FIG. 2B is a cross-sectional view taken along the line AA ′ in FIG. 2A and shows an example of the flange 5 shape. On the outer periphery of the flange 5, a folded piece 3 and a knob piece 4 are extended.
[0007]
FIG. 3 is an enlarged cross-sectional view of the peripheral end E of the drop lid 2.
As shown in FIG. 3A, the flange 5 is deep-drawn to form a groove, in which a packing agent 8 having a weak adhesive property and a gasket function is embedded and fixed. When the barrel end is pushed into the groove, the inside of the sealed container according to the present invention becomes a highly sealed system.
Further, the drop lid 2 is accurately molded in accordance with the opening end of the barrel 1 so that the outer periphery thereof and the inner wall of the barrel 1 are securely fitted inside. Although this can provide a considerable sealing property, it is desirable to use the above packing agent.
After the end portion of the trunk portion is inserted into the groove, the folded piece 3 and the knob 4 connected to the folded piece 3 are bent from the weak line and attached to the side wall of the trunk portion with an adhesive that can be peeled off.
The sealing with the dropping lid 2 and the sticking of the folded piece 3 to the body 1 are naturally performed after the body 1 is filled with the contents.
FIG. 3B shows another example of the flange shape, in which the flange 5 is extended as it is without forming a groove, and a folded piece 3 and a knob piece 4 are provided. In this case, the packing agent 8 may be fixed to a corner portion formed by the outer peripheral wall of the drop lid 2 and the flange 5.
The packing agent 8 is fixed by extruding the packing agent from the nozzle of the hot melt applicator while horizontally moving the dropping lid 2 placed horizontally with the surface to be fixed facing up in accordance with the shape to be fixed in the X and Y axis directions. Can be done. In this case, the drop lid 2 may be fixed and the nozzle may be moved.
As described above, the dropping lid 2 joined to the upper end of the barrel 1 does not fall off by sticking to the side wall of the barrel 1 of the folded piece 3 even if the periphery is grasped by hand and lifted up safely. Can be lifted.
Furthermore, the sealing container 10 by this invention can be stacked by making the center part of the dropping lid 2 into the same level as the surrounding flange 5. FIG.
[0008]
FIG. 4A shows a measuring spoon S attached to the sealed container 10 according to the present invention, and FIG. 4B shows an example of a means for dropping it and locking it to the lid 2. That is, as shown in FIG. 4 (b), a recessed portion 9 is provided at the center of the drop lid 2, and the width of both side walls of the recessed portion 9 is slightly narrower than the handle width of the spoon S. Before sealing with the lid 2, the handle of the spoon S may be pushed into the recessed portion 9 and fixed.
Thus, if the spoon S is dropped and attached to the lid 2, there is no need to pull the thrown spoon S out of the contents. Confirmation is also possible after packaging is complete.
[0009]
To open the sealed container 10 according to the present invention having the above-described configuration, first, the handle 4 provided on the three sides or the front surface is lifted to peel off the folded piece 3, and the folded piece on the three or front side along the weakening line 7 is peeled off. 3 is dropped and separated from the lid 2 body. The folded piece 3 on the rear side wall is left as it is. Next, as shown in FIG. 1 (b), the lid 2 is opened with the hinge H as a fulcrum, the spoon locked at the center is removed, the contents are weighed out, the spoon is locked again, If the drop lid 2 is returned to the fitting state with the original edge of the body part, it can be resealed with a sealing property. The operation can be repeated many times.
With the above configuration, the sealed container 10 according to the present invention can keep the contents in a sealed state until the last contents are taken out from the initial opening.
[0010]
As described above, the body 1 of the sealed container 10 according to the present invention may be either a single paperboard or a laminated body centered on paper. However, at least the thermoplastic resin layer is not provided on the outer surface in order to prevent water wetting and impart moisture resistance. It is desirable to have it.
When a relatively thin carton is used, it is preferable that the end portion of the body portion is folded twice to give the thickness.
The paper cup can be used as the body 1 as it is. In this case, it is preferable to apply a double-sided polyethylene coat, to have compressive strength, and to uniformly compress the top winding portion.
The dropping lid 2 may be a milky white, translucent or arbitrarily colored plastic sheet that has deep drawability. In general, vinyl chloride, high-density polyethylene, polypropylene, polystyrene, polyethylene terephthalate, polybutylene terephthalate, polycarbonate and the like can be appropriately selected and used.
The packing agent 8 is required to have a little elasticity and weak adhesiveness, and since it is necessary to be poured into the fixing portion to the flange 5 in the molten state as described above, a foamable hot melt adhesive is preferably used. Is done.
Adhesion of the folded piece 3 to the body 1 uses a strongly-adhesive hot-melt adhesive on the rear side of the body on which the hinge H is formed, and a weakly-adhesive hot-melt adhesive that peels and adheres to the three sides on the opening side. An adhesive is desirable.
[0011]
The sealed container according to the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the gist of the present invention.
For example, the drop lid 2 is fixed to the body 1 by adhesion between the folded piece 3 and the body 1, but may be attached to the body 1 from the outside of the folded piece 3 using an adhesive tape. Further, the outer wall of the groove in the flange 5 may be extended uniformly over the entire circumference, and the extended portion may tighten the upper end portion of the trunk portion tightly from the outside. Furthermore, only one corner or one side of the drop lid 2 that is close to the one side and defined by the weak line is opened, and the outlet is formed along the one corner or one side like a dispensing container. May be taken out from. The opening shape in this case is arbitrary. However, if a measuring spoon is used, it must be prepared separately.
[0012]
【Example】
In order to apply the sealed container according to the present invention to a small-sized powder detergent for home use, a sealed container having a size of 130 mm in height, 150 mm in width, 90 mm in depth, and an internal capacity of 1200 g (about 1750 cc) was prototyped.
For the body part 1, a rectangular container with rounded corners is used in a laminated material in which low-density polyethylene is coated to a thickness of 20 μm on both sides of a cup base paper of 400 g / m ² , and the top winding is crushed horizontally. Then, the thickness of the end portion of the trunk portion was set to 0.8 mm.
On the other hand, according to the opening edge shape of the trunk portion, a dropping lid 2 as shown in FIG. 2 was molded using a milky white amorphous polyethylene terephthalate sheet having a thickness of 0.4 mm. The width of the groove in the flange 5 was 1.2 mm. Further, although not shown in FIG. 2, the measuring cup locking means as shown in FIG. Further, the packing material was poured into the groove of the flange portion of the drop lid 2 and fixed by the above method. The dropping lid 2 obtained in this way was finally fitted to the edge of the body part filled with the powder detergent contained therein, and the four folded pieces 3 were bonded to the side wall of the body part 1 by hot melt.
The opening and resealing of the example samples obtained in this way can be easily repeated, and the increase in moisture content of the powder detergent in the contents after resealing at 35 ° C. and 90% RH for 7 days is It was hardly seen.
In addition, the detergent powder was not scattered as seen in the conventional sealed container 20 ′ at the time of opening.
Furthermore, since the measuring cup can be taken out and set only by attaching and detaching the drop lid 2, it was possible to clean the hands without getting dirty.
[0013]
【The invention's effect】
The sealed container according to the present invention is composed of a cylindrical body 1 made of paper, a drop lid 2 integrally formed by vacuum forming or the like, and an auxiliary material of an adhesive and a packing agent, and has a relatively low material cost. Can be offered at. A conventional filling line can be used as it is. The sealability after resealing is not much different from that before initial opening, and the contents which dislike moisture absorption can be sealed and stored until the end. Moreover, when the content is powder, scattering at the time of opening is hardly seen. Further, the measuring cup can be easily attached and detached, and can be performed cleanly. Furthermore, after use, it is possible to provide a sealed container that is easy to separate paper and plastic and has good discardability.
[Brief description of the drawings]
FIG. 1 is a perspective view of a sealed container according to the present invention. FIG. 2 is a plan view and a cross-sectional view of a drop lid. FIG. 3 is an enlarged cross-sectional view of a peripheral portion with a folded piece of a drop lid. [Fig. 5] Conventional sealed container [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Body part 2 Drop cover 3 Folding piece 4 Knob 5 Flange 6 Adhesion area | region 7 Weak line 8 Packing agent 9 Recessed part 10 Sealed container 11 by this invention Body 12 Inner seal 13 Cover lid 14 Tear trace 20 of a strip-shaped tear piece Conventionally Sealed container 20 'Conventional sealed container E Peripheral part H with hinged lid lid S Singing spoon

Claims (2)

Body portion, that are formed in a square pillar with a rounded prismatic or square with a material that predominantly paper, the upper end of the body portion and the inner fitting to drop lid by sheet forming of plastic having a flange on the outer periphery At least two opposing flanges of the drop lid are provided with folded pieces by extending a part thereof through a weakening line , and one of the folded pieces is a folded piece. The weakening line is used as a hinge, and the other folded piece is further extended with a knob on the outside, and each folded piece is folded inward so that it can be separated from the outer surface of the opposite body side wall. A hermetically sealed container having a gasket function and a weakly adhesive packing agent fixed to the flange so as to face the upper end edge of the body portion . On the back surface of the drop lid, as a measuring means for locking the measuring spoon, a shape corresponding to the handle of the measuring spoon is provided, and a concave portion is formed in which both side wall widths are slightly narrower than the handle width of the spoon. The sealed container according to claim 1.

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