JP2001080684A - Closed container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a closed container of compact shape which is prevented from being deformed even if the quantity of contents stored therein decreases and which can be easily carried or handled, wherein a cap thereof can be easily formed and adhered to the container. SOLUTION: The closed container 10 is formed from one thermoplastic sheet material 11 wherein a pair of folding plates 13, 13' are symmetrical with respect to a hinge part 12, in plan view. Storage recesses 14, 14' for storing wet sheets 21 are formed in the plates 13, 13' respectively. The pair of plates 13, 13' is folded through the hinge part 12, and the peripheral portions 15, 15' of the recesses 14, 14' are closely adhered to each other to store wet sheets in the recesses. A takeout opening 17 for wet sheets is formed in one of the folding plates, and a cover body 18, which can be unsealed or sealed, is affixed to the periphery of the opening 17.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a closed container, and more particularly to a closed container which can be freely opened and sealed with a lid covering a take-out opening.

[0002]

2. Description of the Related Art Conventionally, an opening for taking out a wet sheet is provided on a top surface of a compact package having a compact shape for accommodating, for example, a wet sheet as a content in a closed state. Are widely used, comprising a housing housing the above-described wet sheet, and a lid adhered to the periphery of the opening of the housing so that the opening can be opened and sealed freely.

[0003] According to such a package, the storage body is formed by laminating and joining both sides in the longitudinal direction of one soft rectangular sheet and forming a cylindrical body. Each is joined together to form a flat, compact, rectangular-shaped soft packaging bag.

[0004] However, in the above-mentioned package, the wet sheets are sequentially taken out and used, and when the number of the stored wet sheets decreases, the container itself is deformed, which is inconvenient to carry and handle. In addition, it becomes difficult to adhere the lid, and the shape of the wet sheet as the content cannot be maintained.

According to the present invention, the container is not deformed even when the amount of the stored contents is small, so that the container is convenient to carry and handle, and the lid can be easily adhered and can be easily formed. It is intended to provide a closed container having a shape. Another object of the present invention is to provide a closed container that can easily maintain the shape of a wet sheet as a content.

[0006]

SUMMARY OF THE INVENTION The present invention provides a closed container formed of a single thermoplastic sheet material and comprising a pair of folding plates sandwiching a hinge portion, wherein at least one of the pair of folding plates is provided. Defines a recess for accommodating contents, and at least one of the pair of folding plates includes a take-out opening and a lid that is adhered to the periphery of the take-out opening so that the take-out opening can be opened and sealed. The above object has been achieved by forming a portion, folding a pair of folding plates via the hinge portion, and joining an outer peripheral portion of the concave portion to provide a closed container for storing contents in the concave portion. is there.

According to the present invention, in particular, a take-out opening is formed in one of a pair of folding plates, and a lid that allows the take-out opening to be opened and sealed is adhered around the take-out opening to take out the wet sheet. It is used as a sealed container to accommodate as much as possible.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A closed container 10 according to a preferred embodiment of the present invention is a compact container having a shape retaining property for accommodating a plurality of wet sheets 21 as contents in a folded state and stacked. Closed container 1 of the present embodiment
Reference numeral 0 denotes a pair of folding plates 13 and 13 ′ which are formed by a single thermoplastic sheet material 11 and have a symmetrical planar shape across a hinge 12, as shown in FIGS. 1 and 2.
The pair of folding plates 13, 13 ′ are respectively formed with receiving recesses 14, 14 ′ by depressing inner portions thereof.
The pair of folding plates 13 and 13 ′ are folded via the hinge portion 12, and the outer peripheral portions 15 and 1 of the accommodation recesses 14 and 14 ′ are provided.
The wet sheet 21 is accommodated in the accommodating portion 16 formed by the accommodating concave portions 14 and 14 ′ that are opposed to each other by tightly joining the 5 ′.

The thermoplastic sheet material 11 is made of a thermoplastic resin having a shape-retaining property at room temperature. Preferably, a thin sheet having a thickness of about 200 to 800 μm, which can be formed into a sheet, can be used. Further, as the thermoplastic sheet material 11, for example, a composite sheet including a molding material layer, a barrier layer, and a sealing layer can be used in accordance with required steam barrier properties, gas barrier properties, and the like. Layered sheets can also be used. As a material of the molding material layer, a thermoplastic resin having a melting point of 300 ° C. or less can be used. Specifically, unstretched nylon, unstretched polypropylene, unstretched polyethylene terephthalate,
Polyvinyl chloride, polystyrene and the like can be used. The material of the barrier layer is polyvinylidene chloride,
Polyvinyl alcohol, eval (copolymer of ethylene and vinyl alcohol), undrawn nylon and the like can be used. As the material of the seal layer, polyethylene, EVAL, unstretched polypropylene, or the like can be used. When the required level of barrier properties is high, aluminum or silica may be deposited on a molding material layer made of unstretched nylon, unstretched polypropylene, unstretched polyethylene terephthalate, or the like.

The hinge portion 12 traverses the center of the rectangular-shaped rectangular thermoplastic sheet material 11 and has a width of 2.5 m.
m and a length of 74 mm. Hinge part 12
Is formed into, for example, an arc shape (preferably 0.5R to 1.0R), and a pair of folding plates 1 located on both sides of the
3, 13 'are bent around the hinge portion 12 so that they can be overlapped in close contact with each other.

The pair of folding plates 13 and 13 ′ are formed by dividing the center of the thermoplastic sheet material 11 by the hinge portion 12, so as to have a rectangular plane shape having a width of 80 mm and a length of 120 mm and having a symmetrical shape. Is provided. Each folding plate 13, 13 ′ has a square frame-shaped outer peripheral portion 1.
Except for 5,5 ', rectangular receiving recesses 14, 1 each having a width of 55 mm, a length of 80 mm, and a depth of 10 to 20 mm.
4 'is depressed by, for example, plug molding.
By setting the depth to 10 to 20 mm, it is possible to sufficiently secure the thickness of the side wall surfaces of the housing recesses 14 and 14 ′. In addition, outside of the accommodation recesses 14 and 14 ′,
Perforations 19 are respectively formed across the thermoplastic sheet material 11, and hanging pieces 20 provided outside the perforations 19 can be cut off. This hanging piece 2
At 0, a hanging hole 22 is formed.

According to this embodiment, one of the folding plates 1
3, a take-out opening 17 for the wet sheet 21 is formed, and around the take-out opening 17, a lid 18 that allows the take-out opening 17 to be opened and sealed is adhered. The take-out opening 17 is appropriately set in consideration of the size of the accommodated wet sheet 21 and the ease of take-out, and is formed in, for example, an elliptical shape. The take-out opening 17 and the lid 18 constitute the take-out section of the present invention.

The lid 18 is a pentagonal sheet-like member (tack label) having a size sufficient to cover the take-out opening 17 from the outside, and the base end near the hinge part 12 has a folding plate 13. Acrylic adhesive is applied to the inner surface of the lid 18 while being fixed to the outer surface of the
It is attached to the outer surface of the folding plate 13 so that it can be peeled off and adhered. Also, the lid 18 on the side opposite to the hinge 12
Is provided with a knob to which no adhesive is applied.

The sheet forming the cover 18 is not particularly limited as long as it is generally used as a cover of a package, but a sheet having a two-layer structure of an outer layer / an inner layer can be preferably used. As the material of the outer layer, a thermoplastic resin film or the like can be used. The material of the inner layer has a melting point of 300 ° C. or less and a tensile strength of 90 to 150M.
A thermoplastic resin film of Pa or the like can be used, and specific examples thereof include polyethylene terephthalate, polyvinyl chloride, polyvinyl chloride, and synthetic paper obtained by blending polypropylene with calcium carbonate.
The preferred thickness of each layer is 30 to
70 μm, and the inner layer is 50-100 μm.

As the acrylic pressure-sensitive adhesive, for example, a pressure-sensitive adhesive comprising a (co) polymer of a vinyl monomer whose main component is 2-ethylhexyl acrylate, butyl acrylate, ethyl acrylate, vinyl acetate, methyl methacrylate, or the like can be used. .

As the wet sheet 21 stored in the closed container 10, for example, a sheet made of fibers such as cotton or wood pulp described in Japanese Patent Application No. Hei 9-117923 is used. Impregnating agents such as antiperspirant water and sterilized water are impregnated at an impregnation rate of 200 to 500% by weight, for example.

According to the present embodiment, a plurality of folded and laminated wet sheets 21 are used as the thermoplastic sheet material 11.
The pair of folding plates 13, 13 ′ are folded via the hinge portion 12 while being accommodated in the accommodation recesses 14, 14 ′ or the accommodation portion 16, and the outer peripheral portions 15,
By tightly bonding 15 'by bonding or heat fusion, the closed container 10 as a product in which the wet sheet 21 is stored is obtained. Such a closed container 10 can be easily formed by the following manufacturing steps.

That is, as shown in FIG. 3, a continuous belt-shaped thermoplastic sheet material 25 is supplied to a production line of the closed container 10, preheated and heated, and then a pair of receiving recesses 14 and 14 'are formed by plug molding. And an R-shaped hinge portion 12 are formed. Next, after cooling this, a take-out opening 17 is punched and formed in one of the accommodating recesses 14, and a cover 18 is attached so as to cover this from below. Further, after the perforations 19 and the suspension holes 22 are formed, the thermoplastic sheet material 11 in a state where the pair of folding plates 13 and 13 ′ are deployed is cut out by punching and cornering, and scraps are collected. . Then, the wet sheet 21 is inserted into the accommodation recess 14 '.
After putting in, the pair of folding plates 13 are folded around the hinge portion 12, and the outer peripheral portions 15, 15 'are fusion-bonded and cooled, so that the closed container 10 having a compact shape is obtained.

According to the closed container 10 of the present embodiment, the wet sheet 21 is taken out from the take-out opening 17 successively because it is formed of a single thermoplastic sheet material 11 having shape retention. 21
Even if the number is small, the sealed container 10 is not deformed, and is convenient for carrying and handling. Further, since the closed container 10 is not deformed, the lid 13 is easily adhered, and the shape of the wet sheet 21 can be easily held.

The closed container of the present invention is not limited to the above embodiment. For example, the accommodation recess for accommodating the contents may be provided in only one of the folding plates, and the other folding plate may be a flat plate having a symmetrical planar shape. Further, the contents do not necessarily have to be a wet sheet, and it is not always necessary to provide a take-out opening and a cover covering this. Further, the thermoplastic sheet material can be formed into a desired shape by injection molding or vacuum molding.

[0021]

According to the closed container of the present invention, the container is not deformed even if the contained contents are reduced,
It is easy to carry and handle and easy to adhere to the lid, and can be easily formed in a compact shape. Further, in the case of a closed container from which the wet sheet can be taken out from the take-out opening, it is easy to hold the shape of the wet sheet.

[Brief description of the drawings]

FIG. 1 is a perspective view illustrating a closed container according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view along AA of FIG. 1 illustrating a closed container according to one embodiment of the present invention.

FIG. 3 is an explanatory view showing an example of a production process of the closed container.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Closed container 11 Thermoplastic sheet material 12 Hinge part 13, 13 'Folding plate 14, 14' Recessed recess 15, 15 'Peripheral part 16 Storage part 17 Take-out opening (take-out part) 18 Lid (take-out part) 19 Perforation 20 Hanging piece 21 Wet sheet 22 Hanging hole

Claims (2)

[Claims] 1. A closed container formed of one thermoplastic sheet material and comprising a pair of folding plates sandwiching a hinge portion, wherein at least one of the pair of folding plates has a recess for accommodating contents. And, on at least one of the pair of folding plates, a take-out portion comprising a take-out opening and a lid adhered around the take-out opening so that the take-out opening can be opened and sealed is formed, and the hinge portion is provided. A closed container that folds a pair of folding plates via a joint and joins the outer peripheral portion of the concave portion to accommodate the contents in the concave portion. 2. The closed container according to claim 1, wherein the content is a wet sheet, and the wet sheet is taken out through the take-out part.