JP2000238845A - Hermetic container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hermetic container which is excellent in appearance, usability and mechanical strength and which has little problem from the viewpoint of preservation and removal of contents. SOLUTION: The hermetic container 10 exhibits an oval cylindrical form, having a top opening also exhibiting an oval. A lid sheet 32 to seal the top opening has a structure to be preferentially cut along a line L1 to be cut to form an opening with a predetermined width. The line L1 crosses the lid sheet 32 at a position corresponding to a portion where a width of a cylinder formed by a side wall 12 begins to narrow. The lid sheet 32 is integrally equipped with a tab 38, while a notch 39 is formed at the foot of the tab 38. The uppermost layer of the lid sheet 32 is made of an oriented sheet, which is oriented so that the lid sheet 32 is cut along the line L1 with the notch 39 as an initial end by pulling the tab 38.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sealed container, and more particularly, to a sealed container having a substantially circular or elliptical container body and capable of forming an opening with a constant width.

[0002]

2. Description of the Related Art Various types of containers are used for storing contents such as powders such as bath salts, powder detergents, instant coffee and powdered juices, granules and granules. As a container for storing such contents, a sealed container of a type in which an opening of a container body is sealed with a thin lid sheet is also known. In the case of this type of container, part or all of the lid sheet is broken when the container is opened, and a hole for taking out the contents is formed.

[0003] In the case of a container using a lid sheet, an unnecessarily large hole is formed in the lid sheet at the time of opening, and there is a possibility that the contents may be deteriorated or the contents may come out too much. Further, in the case of a rectangular container, there is a problem that the appearance, usability, mechanical strength and the like are inferior to those of a circular or oval container.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and is excellent in appearance, usability, mechanical strength, and also from the viewpoint of storage and retrieval of contents. It is an object of the present invention to provide a sealed container with few problems.

[0005]

SUMMARY OF THE INVENTION A first aspect of the present invention is as follows.
A sealed container comprising: a container body formed by a side wall and a bottom wall and having a top opening; and a lid sheet adhered to the side wall along the top opening to hermetically seal the top opening, The side wall comprises a substantially circular cylinder, and the top opening is substantially circular;
The lid sheet has a structure that is preferentially cut linearly and preferentially so as to form an opening at a part of the top opening.

A second aspect of the present invention is a container body formed by a side wall and a bottom wall and having a top opening, and a lid adhered to the side wall along the top opening to hermetically seal the top opening. A sealed container comprising a sheet, wherein the side wall comprises a substantially elliptical or rectangular cylinder, the top opening is substantially elliptical or rectangular, and the lid sheet comprises: A structure that is preferentially cut in the short-axis direction so as to form an opening in a part of the top opening.

According to a third aspect of the present invention, in the sealed container according to the first or second aspect, a tab portion is integrally provided on the lid sheet, and a notch is formed at a base of the tab portion. It is characterized by that.

According to a fourth aspect of the present invention, in the sealed container according to any one of the first to third aspects, the cover sheet includes a resin layer made of a stretched sheet, and the notch is formed by pulling the tab portion. The lid sheet is cut linearly starting from the starting point.

According to a fifth aspect of the present invention, in the sealed container according to any one of the first to fourth aspects, a cap fitted to the side wall so as to cover the top opening is further provided. .

According to a sixth aspect of the present invention, in the sealed container according to any one of the first to fifth aspects, the side wall and the bottom wall are made of a moisture-proof laminated material mainly composed of paper. .

[0011]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing a sealed container 10 according to an embodiment of the present invention, and FIG. 2 is a sealed container 1 shown in FIG.
FIG. 2 is a diagram showing a schematic structure of a main part of the apparatus along with contents 5;

The container 10 has a side wall 12, a bottom wall 22, and a lid sheet 32. The side wall 12 forms an elliptical cylinder having a top opening 16 and a bottom opening 18. The bottom wall 22 is adhered to the side wall 12 along the bottom opening 18 so as to hermetically seal the bottom opening 18, thereby forming the container body 14 in cooperation with the side wall 12. The lid sheet 32 has the top opening 16
Side wall 12 along top opening 16 to hermetically seal
Adhered to.

Here, the shape of the sealed container 10 is not limited to an elliptical shape but may be circular or substantially rectangular. The substantially rectangular shape in this case refers to a shape in which four corners of the rectangle are rounded, or a shape in which each straight line of the rectangle is rounded in a curved shape.

On the other hand, the cover sheet 32 is desirably 30 to
It consists of one sheet with a thickness of 500 μm. The lid sheet 32 is glued on the side wall 12 along the top opening 16. If necessary, the upper peripheral edge of the side wall 12 along the top opening 16 is folded outward to form a flange portion 34, and the lid sheet 32 is adhered to the flange portion 34. The peripheral edge 36 of the lid sheet 32 is bonded to the upper peripheral edge of the side wall 12 forming the flange 34. In addition, the flange part 34 can also be formed using a plate material different from the side wall 12.

The cover sheet 32 includes a uniaxially or biaxially stretched PET resin layer, which is oriented so as to be preferentially cut along a specific direction as described later. Further, a tab portion (knob) 38 is provided on the lid sheet 32.
Are integrally provided, and a notch 39 is formed at the base thereof. The notch 39 is formed in the peripheral portion 36 of the lid sheet 32.

As described above, PET, which is the uppermost layer of the lid sheet 32, is made of a stretched sheet. For this reason, when the tab portion 38 is pulled, the PET is preferentially cut along the cut line indicated by the one-dot chain line L1 with the notch 39 as a starting end. At this time, the other layers are destroyed together with the uppermost layer PET, and the lid sheet 32 is cut straight along the cut line L1. Thereby, an opening having a constant width corresponding to a part of the top opening 16 can be formed in the lid sheet 32.

The planned cutting line L1 of the lid sheet 32 is
It is arranged so as to cross the lid sheet 32 at a position where the width of the cylindrical body formed by 2 starts to be narrowed or at a position corresponding to a position between this position and an end near the long axis of the cylindrical body. For this reason, the notch 39 at the base of the tab portion 38 is formed on the lid sheet 32 at a position serving as a starting point of the line L1. For example, in the case of the container 10 having the above-described dimensions, the distance along the long axis between the near end on the long axis side and the notch 39 is 2 mm to 30 mm.
Is set to As a result, a desired effect can be obtained from the viewpoint of protecting the contents after opening the container, facilitating the discharge of the contents, or preventing the contents from remaining.

The container body 14 may be made of metal, paper, or a combination thereof, and is preferably made of paper in consideration of usability. Hereinafter, a preferred specific example in the case where the container body 14 is made of paper will be described.

The side wall 12 preferably has a thickness of 0.3 to 3 mm and has a rectangular shape having a length substantially corresponding to the perimeter of the cylinder formed by the side wall 12, ie, the circumference of the container body 14. Consists of one plate. The plate constituting the side wall 12 is formed so that the container body 14 has an elliptical cylindrical shape,
Are rounded in the length direction so that there are no corners along the circumferential direction, and both side ends are overlapped and adhered. FIG. 3 is a cross-sectional view showing a mode in which both side ends of the side wall 12 are overlapped.

Side wall 12 (that is, a plate constituting side wall 12)
Is made of a moisture-proof material mainly composed of paper, and has a front label 4
2. It has a laminated structure composed of an intermediate layer 44 and an innermost layer 46, and each layer has a laminated structure.

First, the front label 42 is made of the back-printed PET.
(Polyethylene terephthalate film) and paper have a moisture-proof laminated structure, and paper is disposed on the side in contact with the intermediate layer 44.

The intermediate layer 44 is made of paper and has either a single-layer structure of base paper or a structure in which a plurality of layers of base paper are bonded with an adhesive.

The innermost layer 46 has a laminated structure having at least paper, PET, and a sealant and having a moisture-proof and scent-retaining property, and the paper is disposed on the side in contact with the intermediate layer 44.
Here, the sealant may be any resin that can be thermally bonded,
For example, polyethylene, ethylene vinyl acetate copolymer,
It is selected from an ethylene acrylic acid copolymer and an ionomer resin.

As shown in FIG. 3, in the mode of overlapping the both end portions of the side wall 12, the both end portions 4 of the front label 42 are overlapped.
One end 42a of the 2a and 42b is peeled off from the intermediate layer 44 and adhered on the other end 42b.

Both end portions 44a and 44b of the intermediate layer 44 are cut obliquely, overlapped with each other, and adhered with an adhesive. This prevents the thickness of the side wall 12 from increasing due to the overlap of the intermediate layer 44.

Further, both end portions 46a, 4a of the innermost layer 46 are formed.
6b, the end 46b facing the inside of the container 10 is
After being folded back to the intermediate layer 44 side, it is bonded to the other end 46a (edge protection structure). Thereby, the container 1
It is possible to ensure a predetermined moisture permeability and fragrance retention of 0.

On the other hand, the bottom wall 22 is desirably 0.2 to 1 m.
It consists of one plate with a thickness of m. The peripheral edge of the bottom wall 22 has a shallow elliptical cylindrical shape having legs 24 bent downward, and the bottom opening 1 of the cylindrical body formed by the side wall 12.
It is fitted on the 8 side. The lower peripheral edge of the side wall 12 along the bottom opening 18 is folded inward so as to wrap the legs 24 of the bottom wall 22 to form a bottom folded portion 26. The legs 24 of the bottom wall 22 are adhered to the bottom turnover 26 on both the inside and outside.
Thereby, it becomes possible to secure a predetermined moisture permeability of the container 10.

The bottom wall 22 (that is, the plate constituting the bottom wall 22)
Is made of a moisture-proof laminated material having paper and PET as a central layer and heat-sealing resin layers disposed on both sides. The heat-sealing resin layer disposed on the inner surface side of the container is preferably the same as the resin forming the inner surface of the side wall 12.

The sealed container 10 further includes a cap 42 fitted on the side wall 12 so as to cover the top opening 16. The cap 42 is used to seal the opening of the lid sheet 32 after cutting the lid sheet 32 and opening the container 10. Further, the cap 42 can be formed so as to have a function as a measuring cup for measuring the amount of the contents.

FIG. 4 is a perspective view showing a sealed container 50 according to another embodiment of the present invention. The sealed container 50 according to the present embodiment has the same structure as the sealed container 10 shown in FIG. 1 except that the container body 14 has a substantially circular shape.
Therefore, in FIG. 4, the same reference numerals are given to the portions corresponding to the above embodiment, and the overlapping description will be omitted.

The sealed container 50 also has dimensions and shapes designed mainly in consideration of appearance and usability. Sealed container 50
The size of is not particularly limited, the diameter is 50mm ~ 85m
The range of m is appropriate, and in consideration of functionality such as ease of use, it is preferably 60 mm to 70 mm. In addition, the lid sheet 32 includes a resin layer made of PET of a uniaxially or biaxially stretched sheet, and when the tab portion 38 is pulled, the lid sheet 32 is cut linearly along the planned cutting line L1, and an opening having a fixed width is formed. Can be formed.

Although the preferred embodiments of the present invention have been described with reference to the accompanying drawings, the present invention is not limited to such configurations. Within the scope of the technical idea described in the claims, those skilled in the art can come up with various modified examples and modified examples, and these modified examples and modified examples are also within the technical scope of the present invention. It is understood that it belongs to.

[0034]

According to the present invention, by setting the shape of the container body and the conditions of the lid sheet as described in the claims, the appearance, the usability, the mechanical strength and the preservation of the contents can be improved. It is possible to provide a hermetically sealed container having few problems from the viewpoint of removal.

[Brief description of the drawings]

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

FIG. 2 is a diagram showing a schematic structure of a main part of the sealed container shown in FIG. 1;

FIG. 3 is a cross-sectional view showing a state in which both side ends of a side wall of the sealed container shown in FIG. 1 are overlapped.

FIG. 4 is a perspective view showing a sealed container according to another embodiment of the present invention.

[Explanation of symbols]

 10, 50 ... sealed container 12 ... side wall 14 ... container body 22 ... bottom wall 24 ... leg part 26 ... bottom folded part 32 ... lid sheet 34 ... flange part 38 ... tab part 39 ... notch L1 ... scheduled cutting line

 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Shinichiro Kobayashi 1-5-1, Taito, Taito-ku, Tokyo Inside Toppan Printing Co., Ltd. (72) Inventor Takashi Hidaka 1-5-1, Taito, Taito-ku, Tokyo Inside Toppan Printing Co., Ltd. (72) Inventor Masanobu Okamura 1-5-1, Taito, Taito-ku, Tokyo Toppan Printing Co., Ltd. (72) Inventor Iwao Uchiyama 392 Tsukiji, Fujieda-shi, Shizuoka F Terms (reference) 3E067 AA05 AA21 AB23 BB01A BB14A BB15A BB18A BB25A BC03A BC07A CA05 CA24 EA06 EB07 EB11 EB29 EE21 3E084 AA02 AA12 AA22 AA34 AB07 BA01 CA01 CA02 CB01 CB04 CC03 GB03 DC08

Claims (6)

[Claims] 1. A seal comprising: a container body formed by a side wall and a bottom wall and having a top opening; and a lid sheet adhered to the side wall along the top opening to hermetically seal the top opening. A container, wherein the side wall is formed of a substantially circular cylinder, the top opening is substantially circular, and the lid sheet forms an opening in a part of the top opening. A sealed container having a structure that is preferentially cut linearly. 2. A seal comprising: a container body formed by side and bottom walls and having a top opening; and a lid sheet adhered to said side wall along said top opening to hermetically seal said top opening. A container, wherein the side wall comprises a substantially elliptical or rectangular cylinder;
The top opening is substantially elliptical or rectangular, and the lid sheet has a structure that is preferentially cut in the short axis direction so as to form an opening in a part of the top opening. , Characterized by a sealed container. 3. The sealed container according to claim 1, wherein a tab portion is integrally attached to the lid sheet, and a notch is formed at a root of the tab portion. 4. The lid sheet according to claim 1, wherein the lid sheet includes a resin layer made of a stretched sheet, and the lid sheet is cut straight starting from the notch by pulling the tab portion. 3. The sealed container according to any one of 3. 5. The apparatus according to claim 1, further comprising a cap fitted to said side wall so as to cover said top opening.
The sealed container according to any one of claims 1 to 4. 6. The apparatus according to claim 1, wherein said side wall and said bottom wall are made of a moisture-proof laminated material mainly composed of paper.
A sealed container according to any one of the above.