JP2021008310A - container - Google Patents

Abstract

To provide a self-supporting packaging container capable of achieving both strength and disposability even with a wide mouth.SOLUTION: A self-supporting packaging container A includes a container body 1 having an opening 2a at an upper end of a tubular member 2, an annular member 11 joined to the upper end of the tubular member 2, and a lid member 12 for sealing openably the opening 2a, in which the container body 1 has a bottom surface member joined to the tubular member 2 at a bottom surface of the tubular member 2, the tubular member 2 is composed of a flexible laminate having three or more layers including a barrier layer and a resin layer, and the lid member 12 is openably joined to the annular member 11 by hinging, fitting, or screwing.SELECTED DRAWING: Figure 1

Description

The present invention relates to a self-supporting 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, a pouch container in which the upper and lower ends of the body member are closed by the upper and lower closing members is described.

JP-A-2015-20787

In the pouch container described in Patent Document 1, it is possible to have excellent self-standing stability and shape retention, excellent design, volume reduction, and sufficient liquidtightness between the body member and the closing member. Has been done. However, since the upper closing member is made of a flexible film material and the spout is narrow, it is not easy to take out even a highly fluid content such as a liquid substance. In particular, it has been difficult to apply to contents having low fluidity such as creams and solids.

Further, the flexible packaging container mainly composed of a laminated film is lightweight and excellent in disposability, but the loading efficiency of the container filled with the contents is poor, and the container strength such as drop strength and bag breaking strength is low. In addition, containers such as paper cartons and brick packs (registered trademarks), which are often seen today, have stable shapes, excellent loading efficiency, and are lightweight, but they are used for the strength of containers, especially for paper containers. Since the interlayer strength of the base material is inferior, it is a problem that it is vulnerable to impact such as dropping depending on the shape of the container. Further, the paper container is inferior in piercing resistance and the appearance design such as gloss is inferior to that of the film container. On the other hand, molded containers such as blow bottles and aluminum cans have high strength, but become bulky when discarded.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a self-supporting packaging container capable of achieving both strength and disposability even with a wide mouth.

In order to solve the above problems, in the present invention, a container body having an opening at the upper end of the tubular member, an annular member joined to the upper end of the tubular member, and the opening can be opened and closed. The container body has a bottom surface member joined to the tubular member at the bottom surface of the tubular member, and the tubular member is flexible of three or more layers including a sealant layer. The lid member provides a container which is openably and closably connected to the annular member by either a hinge, a fitting, or a screw.

It is preferable that the structure for connecting the lid member to the annular member is a hinge.
The container may be a jar container.
The tubular member is made of a first laminated body having a total thickness of 100 to 500 μm, and the outer diameter of the tubular member may be 30 to 150 mm.

The bottom surface member is composed of a second laminated body having a total thickness of 70 to 350 μm, and the second laminated body has at least one resin layer on each side of an aluminum foil having a thickness of 40 μm or more in the thickness direction. It may be a laminated body having more than one layer.
The peripheral edge portion of the bottom surface member may be bent with respect to the bottom surface portion and joined to the lower end portion of the tubular member.
The bottom surface member may be made of a resin or aluminum molded product.
The lid member may be made of a resin or aluminum molded product.

According to the present invention, since the annular member is joined between the flexible tubular member and the lid member and the container is opened and closed between the lid member and the annular member, the strength and disposal even if the mouth is wide. It is possible to achieve both sex.

It is (a) perspective view and (b) exploded perspective view which illustrates the container of 1st Embodiment. It is (a) perspective view and (b) exploded perspective view which illustrates the container of 2nd Embodiment. It is (a) perspective view and (b) exploded perspective view which illustrates the container of 3rd Embodiment. (A) to (c) are cross-sectional views illustrating the joint portion between the tubular member and the bottom surface member. (A) to (c) are cross-sectional views illustrating a joint portion between a tubular member and an annular member. It is sectional drawing which shows another example of the joint part of a tubular member and an annular member. It is sectional drawing which shows still another example of the joint part of a tubular member and an annular member.

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

FIG. 1 illustrates the container 10 of the first embodiment. The container 10 has a container body 1 having an opening 2a at the upper end of the tubular member 2, an annular member 11 joined to the upper end of the tubular member 2, and a lid for opening and closing the opening 2a. A member 12 is provided. The lid member 12 has a base portion 14 that can be joined to the annular member 11, and a top portion 15 that is openably and closably connected to the base portion 14 via a hinge 13. The base 14 has a ring shape, and the top 15 has a closed top 15a. When it is not necessary to seal the contents, a hole may be formed in the top surface portion 15a, or a mesh, a grid, or the like may be provided.
In the first embodiment, the top portion 15 may be connected to the annular member 11 via the hinge 13 (the base portion 14 is not provided). In this case, the tubular member 2 may be inserted into the mold, and the annular member 11 and the top portion 15 may be integrally molded.

Although the details will be described later, the container body 1 is a flexible container having a bottom and has self-supporting property. The independence of the container body 1 is at least a property that allows the container body 1 to become independent in a sealed state filled with the contents. Further, it can stand on its own even when the container body 1 not filled with the contents is empty. Further, it is preferable that the tubular member 2 can stand on its own in a single state having no bottom surface.

The annular member 11 has a joint portion 11a with respect to the upper end portion of the tubular member 2 and a mouth edge portion 11b extending upward from the joint portion 11a. The base portion 14 is joined to the rim portion 11b by, for example, fitting, bonding, or the like. When the hinge 13 is directly joined to the container body 1, it is difficult for the container body 1 to withstand the opening and closing of the lid member 12. By providing the annular member 11 at the upper end of the container body 1, the upper end of the container body 1 is reinforced. Therefore, even if the top portion 15 is joined via the hinge 13, the container body 1 can withstand the opening and closing of the lid member 12.

In the example shown in FIG. 1, the lid member 12 having the hinge 13 is separate from the annular member 11. In this case, as will be described in detail later, when the annular member 11 is joined to the upper end portion of the container body 1 or the tubular member 2 thereof, the work can be performed in a state where the lid member 12 having the hinge 13 is not attached. Because it can be done, the work becomes easy. As a method of joining the annular member 11 and the base portion 14, for example, fitting, adhesion, or the like can be adopted. When the annular member 11 is configured to also serve as the base 14, the top 15 of the lid member 12 is directly joined to the annular member 11 via the hinge 13 (there is no base 14), or the base shown in FIG. 1 is formed. It is also possible to directly join the annular member 11 having the shape of 14 to the tubular member 2. The hinge 13 may have a configuration in which the annular member 11 or the base portion 14 is connected to the top portion 15 formed separately from the annular member 11 or the base portion 14 via a pin, a shaft, or the like of metal or the like so as to be openable and closable. It is preferable to form the hinge 13 flexibly and integrally mold the annular member 11 or the base portion 14 and the top portion 15 from the viewpoint of reducing the number of parts and the like. When the top portion 15 is opened, the contents of the container body 1 can be taken out via the annular member 11 or the base portion 14. After filling the container body 1 with the contents, a sealing material such as aluminum foil or a resin film may be attached to the rim portion 11b or the base portion 14 in order to protect the contents before opening. In this case, the contents can be taken out after the sealing material is peeled off. Details are shown as the height H of the joint portion 45a in FIG. 7, which will be described later, but the height of the joint portion that joins the annular member 11 to the upper end portion of the tubular member 2 in the vertical direction is, for example, about 5 mm, or 3 to 3. It is preferably about 15 mm, more preferably about 5 to 12 mm.

In order to facilitate opening and closing of the hinge 13, the lid member 12 may be provided with a non-slip 16 such as a concave portion or a convex portion on which a claw or the like is applied. In the example shown in FIG. 1, anti-slip 16 is provided on the base 14 and the top 15. The non-slip 16 may be provided on at least one of the base 14 and the top 15. When the hinge 13 joins the annular member 11 and the lid member 12, the anti-slip 16 may be provided on at least one of the annular member 11 or the lid member 12. The non-slip 16 is preferably arranged at a position facing the hinge 13 at an angle of about 180 ° in the circumferential direction of the annular member 11. The lid member 12 may be made of a molded product such as resin or metal (for example, aluminum), wood, paper, or ceramic. The lid member 12 may be rigid and inflexible. Further, the lid member 12 may be flexible and deformable.

FIG. 2 illustrates the container 20 of the second embodiment. The container 20 has a container body 1 having an opening 2a at the upper end of the tubular member 2, an annular member 21 joined to the upper end of the tubular member 2, and a lid for opening and closing the opening 2a. A member 22 is provided. The configuration of the container body 1 is the same as that of the first embodiment. Further, the top surface portion 22a of the lid member 22 can be configured in the same manner as the top surface portion 15a of the first embodiment.

The annular member 21 has a joint portion 21a with respect to the upper end portion of the tubular member 2 and a mouth edge portion 21b extending upward from the joint portion 21a. The lid member 22 is joined to the rim portion 21b by fitting. When the lid member 22 is directly fitted to the container body 1, it is difficult for the container body 1 to withstand the opening and closing of the lid member 22. By providing the annular member 21 at the upper end of the container body 1, the upper end of the container body 1 is reinforced. Therefore, even if the lid member 22 is joined by fitting, the container body 1 can withstand the opening and closing of the lid member 22.

In the example shown in FIG. 2, in order to facilitate opening and closing of the lid member 22 with respect to fitting, a non-slip 23 such as a concave portion or a convex portion for putting a claw or the like on the annular member 21 and the lid member 22 is provided. The anti-slip 23 may be provided on at least one of the annular member 21 and the lid member 22. The anti-slip 23 can be arranged at one place or two or more places at an arbitrary position in the circumferential direction of the annular member 21. The lid member 22 may be made of a molded product such as resin, metal (for example, aluminum), wood, paper, or ceramic. The lid member 22 may be rigid and inflexible. Further, the lid member 22 may be flexible and deformable.

FIG. 3 illustrates the container 30 of the third embodiment. The container 30 has a container body 1 having an opening 2a at the upper end of the tubular member 2, an annular member 31 joined to the upper end of the tubular member 2, and a lid for opening and closing the opening 2a. It includes a member 32. The configuration of the container body 1 is the same as that of the first embodiment. Further, the top surface portion 32a of the lid member 32 can be configured in the same manner as the top surface portion 15a of the first embodiment.

The annular member 31 has a joint portion 31a with respect to the upper end portion of the tubular member 2 and a mouth edge portion 31b extending upward from the joint portion 31a. The lid member 32 is joined to the rim portion 31b by a screw 33. When the lid member 32 is directly joined to the container body 1 by the screw 33, it is difficult for the container body 1 to withstand the opening and closing of the lid member 32. By providing the annular member 31 at the upper end of the container body 1, the upper end of the container body 1 is reinforced. Therefore, even if the lid member 32 is joined by the screw 33, the container body 1 can withstand the opening and closing of the lid member 32. Details are shown as the height H of the joint portion 45a in FIG. 7, which will be described later, but the height of the joint portion that joins the annular member 31 to the upper end portion of the tubular member 2 in the vertical direction is, for example, about 5 mm, or 3 to 3. It is preferably about 15 mm, more preferably about 5 to 12 mm.

For the screw 33, for example, a male screw 33a is formed on the outer peripheral surface of the mouth edge portion 31b, a female screw 33b is formed on the inner surface of the lid member 32, and the inner surface of the lid member 32 is opposed to the outer peripheral surface of the mouth edge portion 31b. Has been done. On the contrary, for example, a female screw may be formed on the inner surface of the rim portion 31b, and a male screw may be formed on the outer peripheral surface of the lid member 32. The lid member 32 may be made of a molded product such as resin, metal (for example, aluminum), wood, paper, or ceramic. The lid member 32 may be rigid and inflexible. The lid member 32 may be flexible and deformable, but the portion where the female screw 33b is formed is preferably strong enough to withstand the connection and release of the screw.

Next, the details of the container body 1 will be described. As shown in FIGS. 4A to 4C, the container body 1 has bottom surface members 3 and 4 joined to the tubular member 2 at the bottom surface portion of the tubular member 2. Inside surrounded by the tubular member 2, a content accommodating portion 2b is configured. The tubular member 2 and the bottom surface members 3 and 4 are joined by a bottom surface joint portion 2c.

For example, when the bottom surface member 3 is composed of a flat laminated body or the like, as shown in FIGS. 4A and 4B, the bottom surface joint portion 2c has the peripheral edge portion 3b of the bottom surface member 3 as the bottom surface portion 3a. It is configured to be bent so as to face one surface of the tubular member 2. Here, the surface of the tubular member 2 joined to the peripheral edge portion 3b may be an inner surface or an outer surface. Further, the surface of the peripheral edge portion 3b joined to the tubular member 2 may be an inner surface or an outer surface. The inner surface is a surface on the side in contact with the accommodating portion 2b, and the outer surface is a surface on the opposite side to the accommodating portion 2b.

The bending of the peripheral edge portion 3b of the bottom surface member 3 may be in a direction approaching the lower end portion of the tubular member 2 or in a direction away from the lower end portion of the tubular member 2. In the examples shown in FIGS. 4A and 4B, the bottom surface portion 3a is provided at an upper position away from the lower end portion of the tubular member 2. Further, in FIG. 4A, the peripheral edge portion 3b is bent downward from the bottom surface portion 3a, and in FIG. 4B, the peripheral edge portion 3b is bent upward from the bottom surface portion 3a. In both cases (a) and (b) of FIG. 4, since the bottom surface portion 3a is configured so as not to come into contact with the installation surface, rubbing of the bottom surface portion 3a by the installation surface can be suppressed. When there is partial contact between the installation surface and the bottom surface portion 3a, the bottom surface portion 3a may be reinforced by providing ribs or steps (height difference) on the bottom surface portion 3a.

The bottom surface portion 3a of the bottom surface member 3 is a substantially flat surface. In the example shown in FIG. 4A, the peripheral edge portion 3b of the bottom surface member 3 is formed at the lower end portion of the tubular member 2 with the inner surface of the bottom surface member 3 inside the bottom surface portion 3a facing the inner surface of the tubular member 2. It is joined. In the example shown in FIG. 4B, the peripheral edge portion 3b of the bottom surface member 3 is joined to the lower end portion of the tubular member 2 with the outer surface of the bottom surface member 3 facing the inner surface of the tubular member 2. The bottom surface member 3 may have a flexible and deformable configuration.
As shown in FIG. 4C, the bottom surface member 4 may be made of a molded product such as resin, metal (for example, aluminum), wood, paper, or ceramic. In this case, the shape of the bottom surface member 4 is not particularly limited, but in addition to the installation portion 4a that can come into contact with the installation surface and the peripheral portion 4b that is joined to the bottom surface joint portion 2c, the central portion 4c that is bent upward on the installation surface. May have. The bottom surface member 4 may have a rigid and inflexible configuration, or may have a flexible and deformable configuration.

The tubular member 2 is preferably composed of a first laminated body having a total thickness of 50 to 600 μm. The total thickness of the first laminated body is more preferably 100 to 500 μm. The tubular member 2 is preferably composed of a flexible laminate having three or more layers including a barrier layer and a resin layer. In the tubular member 2, for example, a flat first laminated body having a length corresponding to the outer circumference is formed into a tubular shape, and surfaces having different thickness directions at both ends in the circumferential direction (one inner surface and the other outer surface) are formed. Are joined to face each other (envelope pasting), or both ends in the circumferential direction are projected outward in the radial direction to face each other and joined (gassho pasted), or a tube seamless in the circumferential direction. It can be configured by molding into a shape or the like. In the case of envelope sticking or gassho sticking, there is one seam in the circumferential direction, but there may be two or more seams in the circumferential direction.
When the annular members 11, 21, 31 or the bottom surface member 4 are rigid and inflexible, the durability of the joint portion may decrease if the strength difference from the tubular member 2 is large. Those that are firm and hard to deform are preferable. Also in this case, from the viewpoint of disposability, it is preferable that the tubular member 2 can be bent or crushed. When the annular members 11, 21, 31 or the bottom members 3, 4 are flexible and deformable, the tubular member 2 is preferably flexible and highly flexible so that it can be easily bent or crushed.

The tubular member 2 is, for example, cylindrical, and the outer diameter of the tubular member 2 is 30 to 150 mm. The tubular member 2 may have a triangular cylinder, a square cylinder, a pentagonal cylinder, or the like, an elliptical cylinder, or the like. The outer diameter when the tubular member 2 has a square tubular shape is the distance between the vertices and the vertices, the sides and the sides, or the vertices and the sides facing each other, and when these are two or more, the minimum value and the maximum value. The value is preferably within the above range. Specific examples of the outer diameter of the tubular member 2 are not particularly limited, and examples thereof include 30 mm, 50 mm, 100 mm, and 150 mm.

The first laminated body constituting the tubular member 2 is composed of, for example, a laminated body including an inner sealant layer having a resin layer, a barrier layer having an aluminum foil or an aluminum vapor deposition layer, and an outer sealant layer having a resin layer. can do. The barrier layer of the first laminated body may be made of an aluminum-deposited film. Further, the first laminated body may be composed of three or more laminated bodies having at least one resin layer on each side of the aluminum foil in the thickness direction. The thickness of the aluminum foil contained in the first laminated body may be thinner than the thickness of the aluminum foil contained in the bottom surface member 3, and examples thereof include 6 μm and more. The thickness of the aluminum-deposited film contained in the aluminum-deposited film may be thinner than the thickness of the aluminum foil.

The bottom surface member 3 may be composed of a second laminated body having a total thickness of 70 to 350 μm. The second laminated body may be composed of, for example, three or more laminated bodies having at least one resin layer on each side of an aluminum foil having a thickness of 40 μm or more in the thickness direction. The second laminate can be composed of, for example, a laminate including a sealant layer having a resin layer, a barrier layer having an aluminum foil, and a base material layer having a resin layer. The second laminated body may be a film-shaped laminated body that becomes flat in the unfolded state, or may be a laminated molded body having a three-dimensional molded portion. The outer diameter of the bottom member 3 is substantially equal to the outer diameter of the tubular member 2 minus twice the total thickness of the first laminated body constituting the tubular member 2 (hereinafter referred to as "set dimension A"). Is preferable. That is, it is preferable that the outer diameter of the bottom member 3 is substantially equal to the inner diameter of the tubular member 2. The outer diameter of the bottom member 3 is preferably in the range of 90% to 110% of the above-mentioned set dimension A, and more preferably in the range of 95% to 105%.

When the configurations of the first laminated body and the second laminated body are within the above range, the flexibility of the container body 1 is ensured, and when the containers 10, 20, and 30 are discarded, the container body 1 is folded and crushed. Or can be put together in small pieces. Further, the independence of the container 10 can be ensured by the thickness of the aluminum foil contained in the second laminated body without complicating the structure of the bottom joint portion 2c. The upper limit of the thickness of the aluminum foil contained in the second laminated body is not particularly limited, but may be, for example, 200 μm or less. Specific examples of the thickness of the aluminum foil contained in the second laminate include values of 40 μm, 50 μm, 70 μm, 80 μm, 100 μm, 120 μm, 150 μm, 180 μm, 200 μm, or intermediate or near these. Since the peripheral edge 3b of the bottom member 3 or the tubular member 2 has a tubular shape having a central axis in the vertical direction, it is possible to obtain rigidity that can withstand the load of the contents by ensuring a sufficient thickness of the laminated body. it can. By using a resin layer for the composition of the first laminated body and the second laminated body, the puncture resistance can be improved.

Examples of the material constituting the sealant layer in the first laminated body and the second laminated body include thermoplastic resins. 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 or more of olefin resin, adhesive resin, coating agent and the like can be mentioned.

Examples of the material constituting the base material layer in the second laminate include nylon (aliphatic polyamide), polyester and the like. The thickness of the base material layer is, for example, 5 to 50 μm, more preferably 10 to 30 μm. A thermoplastic resin such as polyethylene may be further laminated on the outside of the base material layer.

The properties of the contents contained in the container body 1 are arbitrary, such as liquid, solid, powder, granular material, and a mixture 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 container may be provided with one or more functionalities such as an oxygen absorption function, an odor absorption function, and a non-adsorption function. The tubular member 2 and the bottom members 3 and 4 may each have at least one or more printed patterns. Each member constituting the container body 1 is not limited to resin, and different materials such as paper, cloth, non-woven fabric, and fibers may be laminated or blended.

Paper materials may be visually arranged on the outer surfaces of the containers 10, 20, and 30, or natural designs such as wood grain and stone grain may be applied. When the paper material is arranged on the outer surface, it is preferable to cover the paper material with a water-resistant material such as resin in order to suppress moisture absorption of the paper material. Examples of the configuration of the first laminated body and the second laminated body include three layers of polyethylene / aluminum / polyethylene and four layers of polyethylene / paper / aluminum / polyethylene (the paper layer is outside the aluminum layer). An appropriate resin layer, adhesive layer, or the like may be added to any of these locations. Since the containers 10, 20 and 30 are wide-mouthed containers having self-supporting properties, the contents can be easily taken out even if they are filled with a viscous substance such as cream or wax. By joining the annular members 11, 21, and 31 to the tubular member 2, the jar container can be formed even if the tubular member 2 is flexible.

Next, a configuration for joining the above-described annular members 11, 21, and 31 to the tubular member 2 will be described. The annular members 11, 21, and 31 can be made of, for example, a material containing a thermoplastic resin. Examples of the molding method of the annular members 11, 21, and 31 include injection molding, compression molding, blow molding, extrusion molding, pressure molding, and draw molding. Examples of the method for joining the annular members 11, 21, 31 and the tubular member 2 include heat welding, adhesion, and hot melt. It is also possible to join the annular member 11, 21, 31 and the tubular member 2 by insert molding the annular member 11, 21, 31 to the tubular member 2.

FIG. 5A shows an example in which the annular member 41 is joined to the inner surface and the outer surface of the tubular member 2 in the upper end portion of the tubular member 2. The annular member 41 may have a groove portion 41a into which the upper end portion of the tubular member 2 is inserted. FIG. 5B shows an example in which the annular member 42 is joined to the inner surface of the tubular member 2 in the upper end portion of the tubular member 2. FIG. 5C shows an example in which the annular member 43 is joined to the outer surface of the tubular member 2 in the upper end portion of the tubular member 2.

As shown in FIG. 6, the annular member 44 may have a protrusion 44a that sandwiches the upper end portion of the tubular member 2 at at least one of the outer circumferences of the opening 2a of the tubular member 2. In this case, the annular member 44 may be joined to only one of the outer surface and the inner surface of the tubular member 2 except for the portion having the protrusion 44a. The protrusion 44a may have a groove 44b into which the upper end of the tubular member 2 is inserted. Further, as shown in FIG. 7, the annular member 45 may have a joint portion 45a with respect to the upper end portion of the tubular member 2 and a mouth edge portion 45b extending upward from the joint portion 45a.

The tubular member 2 and the annular members 41, 42, 43, 44, 45 can be joined by sandwiching them with a jig (not shown) or the like and applying heating, ultrasonic waves, or the like. When joining the tubular member 2 to the annular members 41, 42, 43, 44, 45, the bottom surface members 3 and 4 described above may be joined to the tubular member 2. Alternatively, the bottom member 3 and 4 may be joined to the tubular member 2 after the tubular member 2 is joined to the annular member 41, 42, 43, 44, 45. The width of the welded portion (dimension in the direction intersecting the circumferential direction) when the annular members 41, 42, 43, 44, 45 are joined to the tubular member 2 by the welded portion in the circumferential direction is, for example, about 5 mm. Alternatively, it is preferably about 3 to 20 mm. The welded portion between the annular members 41, 42, 43, 44, 45 and the tubular member 2 may be a welded portion continuous in the circumferential direction, and a welded portion shorter than the peripheral length, such as a point shape or a linear shape, may be formed in the circumferential direction. It may be formed at appropriate intervals. The wall thickness of the annular member 41, 42, 43, 44, 45 at the portion where the tubular member 2 is joined to the annular member 41, 42, 43, 44, 45 is preferably about 0.4 to 20 mm, for example. The configurations of the annular members 41, 42, 43, 44, and 45 can be applied to the annular members 11, 21, and 31 of the containers 10, 20, and 30 described above.

As shown in FIG. 7, when the inner diameter of the rim portion 45b of the annular member 45 is considerably smaller than the inner diameter of the tubular member 2, the bottom members 3 and 4 have a tubular shape before being joined to the tubular member 2. The member 2 may be joined to the annular member 45. As a result, the joining jig can be inserted into the accommodating portion 2b from the bottom surface side of the tubular member 2 and brought closer to the joining portion 45a. When the outer surface of the mouth edge portion 45b of the annular member 45 is bent inward in the radial direction from the outer surface of the joint portion 45a, the height H of the joint portion 45a in the vertical direction is, for example, about 5 mm or about 3 to 15 mm. Is preferable, and more preferably about 5 to 12 mm. In the intermediate region 45c between the joint portion 45a and the rim portion 45b, there may be a portion thinner than the joint portion 45a or the rim portion 45b. The wall thickness of the intermediate region 45c may be, for example, about 1 mm. The joint portion 45a of the annular member 45 may be configured such that the thickness gradually decreases toward the lower end portion of the joint. Further, the joining surface between the joining portion 45a and the tubular member 2 may be joined not only on a flat surface, a cylindrical surface, or the like, but also on a curved surface, a hemispherical surface, or the like. When the joint surface is curved, it may be curved in any of the vertical direction, the circumferential direction, and the like, and the width of the welded portion with respect to the tubular member 2 is larger than the height H of the joint portion 45a along the curvature. You may become.

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. Modifications include addition, replacement, omission, and other changes of components in each embodiment. It is also possible to appropriately combine the components used in the two or more embodiments.

1 ... Container body, 2 ... Cylindrical member, 2a ... Opening, 2b ... Storage part, 2c ... Bottom joint, 3,4 ... Bottom member, 3a ... Bottom part, 3b, 4b ... Bottom member peripheral edge, 4a ... installation part, 4c ... central part, 10,20,30 ... container, 11,21,31,41,42,43,44,45 ... annular member, 11a, 21a, 31a, 45a ... joint part, 11b, 21b , 31b, 45b ... Mouth edge, 12, 22, 32 ... Lid member, 13 ... Hinge, 14 ... Base, 15 ... Top, 15a, 22a, 32a ... Top surface, 16, 23 ... Non-slip, 33 ... Screw , 33a ... male screw, 33b ... female screw, 41a, 44b ... groove, 44a ... protrusion, 45c ... intermediate region.

Claims (8)

A container body having an opening at the upper end of the tubular member,
An annular member joined to the upper end of the tubular member and
A lid member for opening and closing the opening is provided.
The container body has a bottom surface member joined to the tubular member at the bottom surface portion of the tubular member.
The tubular member is composed of a flexible laminate having three or more layers including a sealant layer.
A container characterized in that the lid member is openably and closably connected to the annular member by either a hinge, a fitting, or a screw. The container according to claim 1, wherein the structure for connecting the lid member to the annular member includes a hinge. The container according to claim 1 or 2, wherein the container is a jar container. One of claims 1 to 3, wherein the tubular member is made of a first laminated body having a total thickness of 100 to 500 μm, and the outer diameter of the tubular member is 30 to 150 mm. The container described in. The bottom surface member is composed of a second laminated body having a total thickness of 70 to 350 μm, and the second laminated body has at least one resin layer on each side of an aluminum foil having a thickness of 40 μm or more in the thickness direction. The container according to any one of claims 1 to 4, wherein the container is a laminated body having layers or more. The container according to any one of claims 1 to 5, wherein the peripheral edge portion of the bottom surface member is bent with respect to the bottom surface portion and joined to the lower end portion of the tubular member. The container according to any one of claims 1 to 4, wherein the bottom surface member is made of a molded product of resin or aluminum. The container according to any one of claims 1 to 7, wherein the lid member is made of a molded product of resin or aluminum.

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