JP2021066476A - container - Google Patents

Abstract

To provide a container that does not spoil an aesthetic appearance even if internal pressure decreases and that can secure the capacity.SOLUTION: A container includes: a flexible cylindrical member 12 formed into a cylindrical shape from a rectangular flat member; a top surface member 11 joined to an upper end part 12a of the cylindrical member 12; and a bottom member 13 joined to a lower end part 12b of the cylindrical member 12. An outer peripheral part 11a of the top surface member 11 in which the top surface member 11 is in contact with the upper end part 12a of the cylindrical member 12 and an outer peripheral part 13a of the bottom surface member 13 in which the bottom surface member 13 is in contact with the lower end part 12b of the cylindrical member 12 are not overlapped except for the finite number of intersections in the plan view of overlapping in the up and down direction, and the peripheral length of the outer peripheral portion 11a of the top surface member 11 is equal to the peripheral length of the outer peripheral portion 13a of the bottom surface member 13.SELECTED DRAWING: Figure 1

Description

The present invention relates to a container.

In Patent Document 1, annular body-side end joints formed by bending inward are formed at both upper and lower ends of the body member, and the outer peripheral portions of the upper and lower closing members are joined to the upper and lower body-side end joints, respectively. Then, the pouch container in which the upper and lower ends of the body member are closed by the upper and lower closing members is described.
Patent Document 2 describes a self-supporting pouch in which the lower end opening of a body made of a tubular film material is closed by a bottom part made of a film material, and the film material at the upper end of the body is joined to form an upper end joint. The container is listed.

Japanese Unexamined Patent Publication No. 2015-20787 Japanese Unexamined Patent Publication No. 2016-55911

In a tubular container as described in Patent Document 1, there is a problem that when the internal pressure is reduced due to taking out the contents or the like, the body portion is crushed and the appearance is spoiled.
In a container with upper ends joined as described in Patent Document 2, the body is originally crushed, so that the appearance is not spoiled even if the internal pressure is reduced, but the upper end is thin, so the capacity is small. There's a problem.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a container that does not easily spoil the aesthetic appearance even if the internal pressure decreases and that can secure the capacity.

In order to solve the above problems, the present invention comprises a flexible tubular member formed in a tubular shape from a flat rectangular member, a top surface member joined to the upper end of the tubular member, and the tubular shape. A bottom surface member joined to the lower end portion of the member, the outer peripheral portion of the top surface member in which the top surface member contacts the upper end portion of the tubular member, and the bottom surface member on the lower end portion of the tubular member. In a plan view in which the outer peripheral portions of the bottom surface members in contact are overlapped in the vertical direction, they do not overlap except for a finite number of intersections, and the peripheral length of the outer peripheral portion of the top surface member and the bottom surface member Provided is a container characterized in that the peripheral length is equal to that of the outer peripheral portion.

The container may be configured such that the top surface member and the bottom surface member are made of a hard molded product.
Further, the container may have a configuration in which at least one of the top surface member and the bottom surface member has a portion that can be elastically deformed according to the internal pressure of the container.

According to the present invention, it is possible to provide a container that does not easily spoil the aesthetic appearance even if the internal pressure is reduced and that can secure the capacity.

It is a perspective view which illustrates the container of 1st Embodiment. It is a developed view which illustrates the container of 1st Embodiment. It is a top view which illustrates the container of 2nd Embodiment. It is a top view which illustrates the container of 3rd Embodiment.

Hereinafter, the present invention will be described with reference to the drawings based on the preferred embodiments.

1 and 2 illustrate the container of the first embodiment. The container 10 includes a top surface member 11, a tubular member 12, and a bottom surface member 13. The top surface member 11 is joined to the upper end portion 12a of the tubular member 12. The tubular member 12 is formed in a tubular shape from a rectangular flat member. The bottom surface member 13 is joined to the lower end portion 12b of the tubular member 12. The container 10 can be composed of three parts in which the top surface member 11, the tubular member 12, and the bottom surface member 13 are combined one by one. In the following description, the top surface member 11 and the bottom surface member 13 may be collectively referred to as end surface members 11 and 13.

The container 10 is self-supporting. The independence of the container 10 is at least a property that allows the container 10 to become independent in a state of being filled with the contents and sealed. Furthermore, it is preferable that the container 10 not filled with the contents can stand on its own. Further, it is preferable that the tubular member 12 can stand on its own in a single state separated from the end face members 11 and 13. When the container 10 is self-supporting, the top surface member 11 becomes the upper surface and the bottom surface member 13 becomes the lower surface. In the following description, the vertical direction will be described based on the state in which the container 10 is self-supporting on a horizontal installation surface. Further, the plan view represents a positional relationship when specific portions of the container 10 are overlapped in the vertical direction.

The end face members 11 and 13 may be substantially flat, respectively, and at least one of them may be a three-dimensional molded product. At least one of the end face members 11 and 13 may be made of a flexible film, sheet, laminate or the like made of resin, paper or the like. At least one of the end face members 11 and 13 may be made of a hard molded product.

The planar shape of the end face members 11 and 13 is not particularly limited, and examples thereof include a circular shape, an elliptical shape, and a polygonal shape. Examples of these planar polygons include triangles, quadrangles, pentagons, hexagons, heptagons, and octagons. These polygons may have rounded corners. The thickness of the end face members 11 and 13 is not particularly limited, and examples thereof include 10 to 3000 μm and 50 to 1000 μm. The thickness of the top surface member 11 and the thickness of the bottom surface member 13 may be substantially the same or different from each other.

The molding method when the end face members 11 and 13 are composed of molded products is not particularly limited, and examples thereof include injection molding, compression molding, blow molding, extrusion molding, pressure molding, and draw molding in the case of resin. Examples of the molding materials for the end face members 11 and 13 include thermoplastic resins, thermosetting resins, organic materials such as wood, inorganic materials such as metals, glass, and ceramics, and two or more of these composite materials. Be done. At least one of the end face members 11 and 13 may have a portion that can be elastically deformed according to the internal pressure of the container 10. The portion capable of elastic deformation may be made of rubber, elastomer or the like. As a result, it is possible to absorb the volume change due to the pressure change and suppress wrinkles and the like on the appearance.

The tubular member 12 is formed from a rectangular flat member into a flexible tubular shape. The rectangular flat member is rectangular (square or rectangular) in the unfolded state, and is composed of a film such as resin or paper, a sheet, or a laminate. The outer diameter of the tubular member 12 is not particularly limited, and examples thereof include about 20 to 200 mm. The thickness of the tubular member 12 is not particularly limited, and examples thereof include 10 to 1000 μm, preferably 30 to 700 μm, and more preferably about 50 to 600 μm. The thickness of the tubular member 12 may be substantially equal to the thickness of the end face members 11 and 13, may be thinner than the thickness of the end face members 11 and 13, and may be thicker than the thickness of the end face members 11 and 13. When the tubular member 12 is welded to the end face members 11 and 13, it is preferable that the thickness of the tubular member 12 is equal to or less than the thickness of the end face members 11 and 13 because heating becomes easy.

The length of the upper end portion 12a of the tubular member 12 and the length of the lower end portion 12b of the tubular member 12 are equal to each other so that the expanded state of the tubular member 12 is rectangular. That is, the peripheral length of the outer peripheral portion 11a of the top surface member 11 and the peripheral length of the outer peripheral portion 13a of the bottom surface member 13 are equal to each other. The peripheral lengths of the outer peripheral portions 11a and 13a are lengths along the periphery of the outer peripheral portions 11a and 13a.

The tubular member 12 may be substantially vertical or may be slightly inclined. When the tubular member 12 is substantially vertical, for example, the center of the top surface member 11 may be located substantially above the center of the bottom surface member 13. An example of the center of gravity of the end face members 11 and 13 is the center of gravity. In a plan view, it is preferable that the center of the top surface member 11 is within the range of the region surrounded by the outer peripheral portion 13a of the bottom surface member 13.

The spout 14 may be provided on at least one of the end face members 11 and 13. The spout 14 may be omitted from the container 10. The spout 14 may be narrow or wide. The spout 14 may be integrally molded with the end face members 11 and 13. The spout 14 may be formed as a member different from the end face members 11 and 13. The molding method of the spout 14 is not particularly limited, and examples thereof include injection molding, compression molding, blow molding, extrusion molding, pressure molding, and draw molding. Examples of the molding material of the injection port 14 include a thermoplastic resin and a metal.

The method of providing the lid on the spout 14 is not particularly limited, and examples thereof include screws, adhesives, thin-walled portions, and fittings. The lid of the spout 14 may be integrally molded with the spout 14. For example, the spout 14 and the lid may be integrally connected via a thin hinge. Further, the lid of the spout 14 may be made of a member different from the spout 14. For example, a film-like lid may be welded to the tip of the spout 14, the cap may be fixed with a screw, or the cap may be fixed by fitting.

The end face members 11 and 13 and the tubular member 12 have an inner surface and an outer surface, respectively. The inner surface is a surface on the side in contact with the contents filled in the container 10. The outer surface is the surface opposite to the inner surface. At least one of the end face members 11, 13 or the tubular member 12 may be, for example, an inner sealant layer having a resin layer, a barrier layer having an aluminum foil or an aluminum vapor deposition layer, an outer sealant layer having a resin layer, or a base material layer. It may be composed of a laminate containing at least three layers.

Examples of the material constituting the sealant layer of the laminated body include a thermoplastic resin. Specific examples of the sealant material include polyolefin resins such as polyethylene (PE) and polypropylene (PP), polyester resins such as polyethylene terephthalate (PET), cycloolefin polymers (COP), and cyclic resins such as cycloolefin copolymer (COC). At least one kind of olefin resin, adhesive resin, coating agent and the like can be mentioned. Examples of the material constituting the base material layer of the laminate include nylon (aliphatic polyamide), polyester and the like. In the laminated body, a thermoplastic resin such as polyethylene may be laminated on the outside of the base material layer.

In order to form a rectangular flat member into a tubular shape, one side of the flat member is made to correspond to the circumferential direction of the tubular member 12, and both end portions 12c in the circumferential direction are joined. When the flat member is rectangular, either the long side or the short side thereof may correspond to the circumferential direction of the tubular member 12. In order to join both end portions 12c in the circumferential direction, the inner surfaces of both end portions 12c in the circumferential direction may be joined so as to face each other. Alternatively, the inner surface at one end 12c in the circumferential direction and the outer surface at the other end 12c may be overlapped and joined.

In order to join the outer peripheral portions 11a and 13a of the end face members 11 and 13 to the upper and lower end portions 12a and 12b of the tubular member 12, the inner surfaces of the end face members 11 and 13 are joined so as to face the inner surface of the tubular member 12. Alternatively, the outer surfaces of the end face members 11 and 13 may be joined so as to face the outer surface of the tubular member 12, and the outer surfaces of the end face members 11 and 13 may be joined so as to face the inner surface of the tubular member 12. , The inner surfaces of the end face members 11 and 13 may be joined so as to face the outer surface of the tubular member 12. Here, the upper and lower end portions 12a and 12b of the tubular member 12 refer to the upper end portion 12a or the lower end portion 12b corresponding to (close to) the end face members 11 and 13.

In joining the outer peripheral portions 11a, 13a of the end face members 11 and 13 and the upper and lower end portions 12a and 12b of the tubular member 12, the outer peripheral portions 11a and 13a of the end face members 11 and 13 or the upper and lower end portions 12a of the tubular member 12 , 12b may have a glue allowance portion that overlaps with the other. For example, when the glue margin portions are provided on the outer peripheral portions 11a and 13a of the end face members 11 and 13, the glue margin portions of the end face members 11 and 13 are bent and overlapped with the upper and lower end portions 12a and 12b of the tubular member 12. , Can be joined. When the upper and lower end portions 12a and 12b of the tubular member 12 are provided with the glue margin portion, the glue margin portion of the tubular member 12 is bent and overlapped with the outer peripheral portions 11a and 13a of the end face members 11 and 13. Can be joined. The mode of joining the top surface member 11 and the tubular member 12 may be the same as the mode of joining the tubular member 12 and the bottom surface member 13, and each may be different.

The outer peripheral portion 11a of the top surface member 11 and the outer peripheral portion 13a of the bottom surface member 13 do not overlap each other except for a finite number of intersections in a plan view in which they are overlapped in the vertical direction. In the case of the first embodiment, the outer peripheral portion 11a of the top surface member 11 is circular, and the outer peripheral portion 13a of the bottom surface member 13 is square. When the center of the top surface member 11 and the center of the bottom surface member 13 are overlapped in the vertical direction, the top surface member 11 and the outer peripheral portions 11a and 13a of the bottom surface member 13 have eight intersections in a plan view.

In the container 10 of the first embodiment, the end face members 11 and 13 have different shapes, but the end face members 11 and 13 may have the same shape. In the container 20 of the second embodiment and the container 30 of the third embodiment, the top surface members 21 and 31 and the bottom surface members 23 and 33 have the same shape. In the container 20 of the second embodiment and the container 30 of the third embodiment, contents other than the planar shape of the top surface members 21, 31 and the bottom surface members 23, 33, such as the tubular members 22, 32 and the spout 24, Since the configuration of 34 and the like can be the same as that of the container 10 of the first embodiment, duplicate description will be omitted.

For example, in the container 20 of the second embodiment shown in the plan view in FIG. 3, the top surface member 21 and the bottom surface member 23 have the same elliptical shape. In this case, the elliptical major axis direction of the top surface member 21 overlaps with the elliptical minor axis direction of the bottom surface member 23, and the elliptical minor axis direction of the top surface member 21 overlaps with the elliptical major axis direction of the bottom surface member 23. ing. Therefore, the outer peripheral portion 21a of the top surface member 21 in which the top surface member 21 is in contact with the upper end portion 22a of the tubular member 22 and the outer peripheral portion 23a of the bottom surface member 23 in which the bottom surface member 23 is in contact with the lower end portion 22b of the tubular member 22. However, in plan view, they do not overlap except for four intersections.

Further, in the container 30 of the third embodiment shown in the plan view in FIG. 4, the shapes of the top surface member 31 and the bottom surface member 33 are squares having the same shape. In this case, each side of the square of the top member 31 is parallel or perpendicular to the diagonal of the square of the bottom member 33, and the diagonal of the square of the top member 31 is parallel or perpendicular to each side of the square of the bottom member 33. .. Therefore, the outer peripheral portion 31a of the top surface member 31 in which the top surface member 31 is in contact with the upper end portion 32a of the tubular member 32 and the outer peripheral portion 33a of the bottom surface member 33 in which the bottom surface member 33 is in contact with the lower end portion 32b of the tubular member 32. However, in plan view, they do not overlap except for eight intersections.

According to the containers 10, 20, and 30, since the top surface members 11, 21, and 31 and the bottom surface members 13, 23, 33 do not overlap each other, the tubular members 12, 22, and 32 have an undulating shape. Therefore, even if the internal pressures of the containers 10, 20, and 30 are reduced, the dents of the tubular members 12, 22, and 32 are less noticeable, and the aesthetic appearance is less likely to be impaired. Further, since the areas of the top surface members 11, 21, 31 and the areas of the bottom surface members 13, 23, 33 are substantially the same, the capacities of the containers 10, 20, and 30 are equivalent amounts according to the bottom area and height. Can be secured. As for the shape of the container, it is difficult to understand the shape change of the tubular member, it has high eye-catching property, and it can be continuously processed in the same way as the conventional symmetrical container (when the top surface and the bottom surface have the same shape). preferable.

When one of the top surface member 11 or the bottom surface member 13 is circular and the other is square and the circumferences of the top surface member 11 and the bottom surface member 13 are equal as in the container 10 of the first embodiment, the circular area is set to 1. The area of the square is π / 4 (about 0.785), and the area of the circle is 4 / π (about 1.273) when the area of the square is 1. Further, when the top surface members 21 and 31 and the bottom surface members 23 and 33 have the same shape as in the container 20 of the second embodiment and the container 30 of the third embodiment, the areas of both are equal to each other. The ratio between the area _{S 2} of the surface area _{S 1} and the bottom members 13, 23, 33 of the top member 11,21,31 _(S 1 / S ₂₎ is, for example, about 0.5 to 2.0.

Here, the area _{S 1} of the top face member 11, 21 and 31 does not include the margin portion for joining the upper end portion 12a of the tubular member 12, 22, 32 described above, 22a, 32a and, top member It is the area in the plan view of the region surrounded by the outer peripheral portions 11a, 21a, 31a of 11,21,31. Similarly, the area _{S 2} of the bottom member 13, 23 and 33 does not include the margin portion for joining the lower end 12b of the tubular member 12, 22, 32 described above, 22b, 32 b and the bottom surface member 13, It is an area in a plan view of a region surrounded by outer peripheral portions 13a, 23a, 33a of 23, 33.

The outer peripheral portion 11a of the top member 11, 21 and 31 in plan view, 21a, the outer peripheral portion 13a of 31a and the bottom member 13, 23, 33, 23a, the area of 33a and overlap region (overlapping region) and _{S B,} the area of the region to which they do not overlap (non-overlapping region) when the _{S a,} the area _{S a} of the non-overlapping region _can be calculated by the formula _{S a = S 1 + S 2} -2S B. In this case, the area ratio _S A / _{S B} is preferably, for example in the range of 0.1 to 10.0, more preferably in the range of 0.2 to 5.0. Specific examples of the value of the area ratio _S A / _{S B,} for example, and the like 0.3,0.4,0.5,0.7,1.0,1.5,2.0. If the outer peripheral portions 11a, 21a, 31a of the top surface members 11, 21, 31 and the outer peripheral portions 13a, 23a, 33a of the bottom surface members 13, 23, 33 completely coincide with each other in a plan view, the non-overlapping region is formed. since the area of the area _{S a} is 0, the value of the area ratio _S a / _{S B} is 0.

The properties of the contents filled in the containers 10, 20, and 30 are not particularly limited, and are arbitrary, such as liquids, solids, powders, granules, and mixtures of two or more of these. The type of contents is not particularly limited, and examples thereof include beverages, foodstuffs, seasonings, cosmetics, pharmaceuticals, detergents, adhesives, household products, and industrial products.

Each member constituting the containers 10, 20, and 30 may be provided with one or more functionalities such as an oxygen absorption function, an odor absorption function, and a non-adsorption function. Each member constituting the containers 10, 20 and 30 may have at least one or more printed patterns. The material constituting each member constituting the containers 10, 20, and 30 is not limited to resin, and different materials such as paper, cloth, non-woven fabric, fiber, metal, and inorganic compound may be laminated or blended.

Although the present invention has been described above based on preferred embodiments, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the gist of the present invention.

10, 20, 30 ... Container, 11, 21, 31 ... Top surface member, 11a, 21a, 31a ... Outer peripheral portion of top surface member, 12, 22, 32 ... Cylindrical member, 12a, 22a, 32a ... Cylindrical member 12b, 22b, 32b ... Lower end of the tubular member, 12c ... Circumferential end of the tubular member, 13, 23, 33 ... Bottom member, 13a, 23a, 33a ... Outer peripheral portion of the bottom member, 14, 24, 34 ... Spouts.

Claims (3)

A flexible tubular member formed from a rectangular flat member into a tubular shape,
A top surface member joined to the upper end of the tubular member and
A bottom member joined to the lower end of the tubular member is provided.
The outer peripheral portion of the top surface member in which the top surface member contacts the upper end portion of the tubular member and the outer peripheral portion of the bottom surface member in which the bottom surface member contacts the lower end portion of the tubular member are overlapped in the vertical direction. A container that does not overlap except for a finite number of intersections in a plan view, and that the peripheral length of the outer peripheral portion of the top surface member is equal to the peripheral length of the outer peripheral portion of the bottom surface member. The container according to claim 1, wherein the top surface member and the bottom surface member are made of a hard molded product. The container according to claim 1 or 2, wherein at least one of the top surface member and the bottom surface member has a portion that can be elastically deformed according to the internal pressure of the container.

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