CN114051478A

CN114051478A - Container with a lid

Info

Publication number: CN114051478A
Application number: CN202080047621.9A
Authority: CN
Inventors: 吉田美帆子; 铃木豊明
Original assignee: Fujimori Kogyo Co Ltd
Current assignee: Fujimori Kogyo Co Ltd
Priority date: 2019-07-02
Filing date: 2020-06-29
Publication date: 2022-02-15
Also published as: EP3995409A1; WO2021002319A1; US20220258928A1; KR20220029704A; EP3995409A4; JP2021008310A

Abstract

The invention provides a container which can ensure strength and disposability at the same time even if the container is wide-mouth in a packaging container with self-standing property. The container of the present invention comprises: a container body (1) having an opening (2a) at the upper end of a cylindrical member (2); an annular member (11) that is joined to the upper end of the tubular member (2); and a lid member (12) that closes the opening (2a) in an openable and closable manner, wherein the container body (1) has a bottom member that is joined to the cylindrical member (2) at the bottom portion of the cylindrical member (2), the cylindrical member (2) is formed of a flexible laminate of three or more layers including a barrier layer and a resin layer, and the lid member (12) is connected to the annular member (11) in an openable and closable manner by any one of a hinge, a fitting, and a screw.

Description

Container with a lid

Technical Field

The present invention relates to a container having self-standing properties.

The present application claims priority based on patent application No. 2019-123825 filed in japan on 7/2/2019, the contents of which are incorporated herein by reference.

Background

Patent document 1 describes the following bag container: annular main body side end joining portions bent inward are formed at the upper and lower end portions of the main body member, and the upper and lower end portions of the main body member are closed by the upper and lower closing members by joining the outer peripheral portions of the upper and lower closing members to the upper and lower main body side end joining portions, respectively.

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open publication No. 2015-20787

Disclosure of Invention

Technical problem

The bag container described in patent document 1 is excellent in self-standing stability and shape retention, has excellent appearance, can reduce the volume, and can sufficiently ensure the liquid-tightness between the main body member and the closing member. However, since the upper closing member is formed of a soft base film material and the discharge port is narrow, even a content having high fluidity such as a liquid substance is not easily taken out. In particular, it is difficult to apply the composition to a content having low fluidity such as a butter-based material and/or a solid material.

Further, although a flexible packaging container mainly composed of a laminated base film is lightweight and excellent in disposability, the container filled with the content is poor in loading efficiency, and the container strength such as drop strength and bag breaking strength is low. Further, although containers such as paper cartons and/or brick packs (BrickPack) (registered trademark) which are common in the past are stable in shape, excellent in loading efficiency, and lightweight, there is a problem that the shape of the container is weak against impact such as dropping because of the strength of the container, particularly the interlaminar strength of the base material used for the paper container, is poor. Further, paper containers have poor puncture resistance and have inferior appearance such as gloss than base film containers. On the other hand, molded containers such as blow molded bottles, aluminum cans, and the like have high strength, but they are 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 container which can ensure both strength and disposability even if the container is wide-mouthed in a packaging container having self-standing properties.

Technical scheme

In order to solve the above problem, a container according to an aspect of the present invention includes: a container body having an opening at an upper end of a cylindrical member; an annular member that is joined to an upper end portion of the cylindrical member; and a lid member that closes the opening portion so as to be openable and closable, wherein the container main body has a bottom surface member joined to the tubular member at a bottom surface portion of the tubular member, the tubular member is formed of a flexible laminate of three or more layers including a sealing layer, and the lid member is connected to the annular member so as to be openable and closable by any one of a hinge, a fitting, and a screw.

The lid member and the annular member may be connected by a hinge.

The container may also be a can container.

The cylindrical member may be formed of a first laminate having a total thickness of 100 to 500 μm, and the outer diameter of the cylindrical member may be 30 to 150 mm.

The bottom member may be formed of a second laminate having a total thickness of 70 to 350 [ mu ] m, and the second laminate may be a laminate having three or more layers including at least one resin layer on each of both sides in the thickness direction of an aluminum foil having a thickness of 40 [ mu ] m or more.

The peripheral edge portion of the bottom member may be bent with respect to the bottom surface portion and joined to the lower end portion of the tubular member.

The bottom member may be formed of a resin molded product or an aluminum molded product.

The lid member may be formed of a resin molded article or an aluminum molded article.

Technical effects

According to the present invention, the annular member is joined between the flexible cylindrical member and the lid member, and the container is opened and closed between the lid member and the annular member, so that strength and disposability can be ensured simultaneously even if the container is formed with a wide mouth.

Drawings

Fig. 1A is a diagram illustrating a container of the first embodiment in a perspective view.

Fig. 1B is a diagram illustrating the container of the first embodiment in an exploded perspective view.

Fig. 2A is a diagram illustrating a container of the second embodiment in a perspective view.

Fig. 2B is a diagram illustrating a container of the second embodiment in an exploded perspective view.

Fig. 3A is a diagram illustrating a container of a third embodiment in a perspective view.

Fig. 3B is a diagram illustrating a container of the third embodiment in an exploded perspective view.

Fig. 4A is a sectional view illustrating a joint portion between the cylindrical member and the bottom surface member.

Fig. 4B is a sectional view illustrating a joint portion between the cylindrical member and the bottom surface member.

Fig. 4C is a sectional view illustrating a joint portion between the cylindrical member and the bottom surface member.

Fig. 5A is a sectional view illustrating a joint portion between the cylindrical member and the annular member.

Fig. 5B is a sectional view illustrating a joint portion between the cylindrical member and the annular member.

Fig. 5C is a sectional view illustrating a joint portion between the cylindrical member and the annular member.

Fig. 6 is a cross-sectional view illustrating another example of the joint portion between the cylindrical member and the annular member.

Fig. 7 is a cross-sectional view illustrating another example of the joint portion between the cylindrical member and the annular member.

Description of the symbols

1 … container body, 2 … tubular component, 2a … opening part, 2b … containing part, 2c … bottom surface joint part, 3, 4 … bottom surface component, 3a … bottom surface part, 3b, 4b … bottom surface component peripheral edge part, 4a … setting part, 4c … central part, 10, 20, 30 … container, 11, 21, 31, 41, 42, 43, 44, 45 … annular component, 11a, 21a, 31a, 45a … joint part, 11b, 21b, 31b, 45b … edge part, 12, 22, 32 … cover component, 13 … hinge, 14 … base part, 15 … top part, 15a, 22a, 32a … top surface part, 16, 23 … anti-slip piece, 33 … thread, 33a … external thread, 33b … internal thread, 41a, 44b … groove part, … a …, 45c middle protruding area.

Detailed Description

The present invention will be described below based on preferred embodiments with reference to the accompanying drawings.

A container 10 of a first embodiment is illustrated in fig. 1A and 1B. The container 10 includes: a container body 1 having an opening 2a at an upper end of a cylindrical member 2; an annular member 11 joined to an upper end portion of the tubular member 2; and a lid member 12 that closes the opening 2a so as to be openable and closable. The lid member 12 has: a base portion 14 engageable with the annular member 11; and a top portion 15 coupled to the base portion 14 via a hinge 13 so as to be openable and closable with respect to the base portion 14. The base portion 14 is annular, and the top portion 15 has a locked top surface portion 15 a. When the contents do not need to be sealed, holes may be formed in the top surface portion 15a, or a mesh and/or a lattice may be provided.

In the first embodiment, the top portion 15 may be connected to the ring member 11 via the hinge 13 (without the base portion 14). In this case, the cylindrical member 2 may be fitted into a mold, and the annular member 11 and the top portion 15 may be integrally molded.

As will be described in detail later, the container body 1 is a flexible container having a bottom and is self-supporting. The self-standing property of the container main body 1 means a property of being capable of self-standing at least in a state of being filled with contents and sealed. Further, the container body 1 can stand by itself even when it is empty. The cylindrical member 2 is preferably capable of standing on its own without having a bottom surface.

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

In the example shown in fig. 1A and 1B, the lid member 12 having the hinge 13 is separated from the ring member 11. In this case, as will be described in detail later, when the ring-shaped member 11 is joined to the upper end portion of the container body 1 or the cylindrical member 2 thereof, the operation can be performed without mounting the lid member 12 having the hinge 13, and therefore, the operation can be performed easily. As a method of joining the annular member 11 and the base portion 14, fitting, adhesion, or the like can be employed, for example. When the annular member 11 also serves as the base portion 14, the top portion 15 of the lid member 12 can be directly joined to the annular member 11 via the hinge 13 (without the base portion 14), or the annular member 11 having the shape of the base portion 14 shown in fig. 1A and 1B can be directly joined to the tubular member 2. The hinge 13 may be configured such that the ring-shaped member 11 or the base portion 14 is openably and closably connected to the ceiling portion 15 via a pin, a shaft, or the like of metal, and the ceiling portion 15 is molded separately from the ring-shaped member 11 or the base portion 14, but from the viewpoint of reducing the number of components, it is preferable that the hinge 13 be formed of resin or the like so as to be thin and bendable, and be molded integrally with the ring-shaped member 11 and the ceiling portion 15, or be molded integrally with the base portion 14 and the ceiling portion 15. When the top portion 15 is opened, the contents of the container body 1 can be taken out through the ring member 11 or the base portion 14. After the container body 1 is filled with the contents, a sealing material such as an aluminum foil or a resin-based film may be attached to the mouth edge portion 11b or the base portion 14 in order to protect the contents before opening. In this case, the content can be taken out after the sealing material is peeled off. Although the height H of the joint portion 45a in fig. 7, which will be described in detail later, is shown, the height in the vertical direction of the joint portion where the annular member 11 and the upper end portion of the cylindrical member 2 are joined is preferably about 5mm or about 3 to 15mm, and more preferably about 5 to 12mm, for example.

In order to facilitate opening and closing of the hinge 13, the lid member 12 may be provided with a slip stopper 16 such as a concave portion or a convex portion for clipping a nail or the like. In the example shown in fig. 1A and 1B, cleats 16 are provided on base 14 and top 15. Cleats 16 may also be provided on at least one of base 14 or top 15. In the case where the hinge 13 engages the annular member 11 with the lid member 12, the anti-slip member 16 may be provided on at least one of the annular member 11 and the lid member 12. The anti-slip device 16 is preferably disposed at a position facing the hinge 13 at an angle of about 180 ° in the circumferential direction of the ring member 11. The lid member 12 may be formed of a molded product of resin, metal (e.g., aluminum), wood, paper, ceramic, or the like. The lid member 12 may be configured to be rigid and inflexible. The lid member 12 may be configured to be flexibly deformed.

A second embodiment of a container 20 is illustrated in fig. 2A and 2B. The container 20 includes: a container body 1 having an opening 2a at an upper end of a cylindrical member 2; an annular member 21 joined to an upper end portion of the cylindrical member 2; and a cover member 22 that closes the opening 2a so as to be openable and closable. The container body 1 has the same configuration as that of the first embodiment. The top surface portion 22a of the cover member 22 may 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 to the upper end of the tubular member 2, and a rim portion 21b extending upward from the joint portion 21 a. The lid member 22 is joined to the rim 21b by fitting. When the lid member 22 is directly fitted to the container body 1, the container body 1 is difficult to prevent the opening and closing of the lid member 22. The upper end portion of the container body 1 is reinforced by providing the ring-shaped member 21 at the upper end portion of the container body 1. Therefore, even if the lid member 22 is joined by fitting, the opening and closing of the lid member 22 can be prohibited by the container body 1.

In the example shown in fig. 2A and 2B, in order to facilitate opening and closing of the cover member 22 with respect to fitting, the annular member 21 and the cover member 22 are provided with anti-slip members 23 such as concave portions and convex portions for catching nails or the like. The anti-slip member 23 may be provided in at least one of the ring member 21 or the cover member 22. The anti-slip members 23 may be arranged at one or two or more positions in the circumferential direction of the annular member 21. The cover member 22 may be formed of a molded product of resin, metal (e.g., aluminum), wood, paper, ceramic, or the like. The lid member 22 may be configured to be rigid and inflexible. The lid member 22 may be configured to be flexibly deformed.

A third embodiment of a container 30 is illustrated in fig. 3A and 3B. The container 30 includes: a container body 1 having an opening 2a at an upper end of a cylindrical member 2; an annular member 31 joined to an upper end portion of the cylindrical member 2; and a cover member 32 that closes the opening 2a so as to be openable and closable. The container body 1 has the same configuration as that of the first embodiment. The top surface portion 32a of the cover member 32 may 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 to the upper end of the tubular member 2, and a lip portion 31b extending upward from the joint portion 31 a. The lid member 32 is engaged with the lip portion 31b by a screw 33. When the lid member 32 is directly joined to the container body 1 by the screw 33, the container body 1 is difficult to prevent the lid member 32 from opening and closing. The upper end portion of the container body 1 is reinforced by providing the ring-shaped member 31 at the upper end portion of the container body 1. Therefore, even if the lid member 32 is joined by the screw 33, the container body 1 can be prevented from opening and closing the lid member 32. Although the height H of the joint portion 45a in fig. 7, which will be described in detail later, is shown, the height in the vertical direction of the joint portion where the annular member 31 and the upper end portion of the cylindrical member 2 are joined is preferably about 5mm or about 3 to 15mm, and more preferably about 5 to 12mm, for example.

The screw 33 is combined, for example, by forming a male screw 33a on the outer peripheral surface of the lip portion 31b, forming a female screw 33b on the inner surface of the lid member 32, and facing the inner surface of the lid member 32 and the outer periphery of the lip portion 31 b. On the contrary, for example, a female screw may be formed on the inner surface of the lip 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 formed of a molded product such as resin, metal (e.g., aluminum), wood, paper, or ceramic. The lid member 32 may be configured to be rigid and inflexible. Although the lid member 32 may be configured to be flexibly deformed, the portion where the female screw 33b is formed preferably has a strength enough to prevent the screw from being tightened or loosened.

Next, the details of the container body 1 will be explained. As shown in fig. 4A, 4B, and 4C, the container body 1 includes

bottom members

3 and 4 joined to the tubular member 2 at the bottom of the tubular member 2. A storage portion 2b for storing contents is formed inside the cylindrical member 2. The cylindrical member 2 and the

bottom surface members

3 and 4 are joined by a bottom surface joining portion 2 c.

For example, when the bottom member 3 is formed of a planar laminate or the like, the bottom joint portion 2c is configured to be bent with respect to the bottom portion 3a so as to face one surface of the tubular member 2, as shown in fig. 4A and 4B. Here, the surface of the cylindrical member 2 joined to the peripheral edge portion 3b may be an inner surface or an outer surface. The surface of the peripheral edge portion 3b to be joined to the cylindrical member 2 may be an inner surface or an outer surface. The inner surface is a surface in contact with the housing portion 2b, and the outer surface is a surface opposite to the housing portion 2 b.

The peripheral edge 3b of the bottom member 3 may be bent in a direction toward the lower end of the tubular member 2 or in a direction away from the lower end of the tubular member 2. In the example shown in fig. 4A and 4B, the bottom surface portion 3a is provided at a position above the lower end portion of the tubular member 2. 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 3 a. In both cases of fig. 4A and 4B, the bottom surface portion 3a is configured not to contact the installation surface, so that friction between the installation surface and the bottom surface portion 3a can be suppressed. When the installation surface is locally in contact with the bottom surface portion 3a, the bottom surface portion 3a may be reinforced by providing the bottom surface portion 3a with ribs and/or steps (step heights).

The bottom surface portion 3a of the bottom surface member 3 is substantially flat. In the example shown in fig. 4A, the peripheral edge portion 3b of the bottom member 3 is joined to the lower end portion of the tubular member 2 such that the inner surface of the bottom member 3, which is located inward of the bottom portion 3a, faces the inner surface of the tubular member 2. In the example shown in fig. 4B, the peripheral edge portion 3B of the bottom member 3 is joined to the lower end portion of the tubular member 2 so that the outer surface of the bottom member 3 faces the inner surface of the tubular member 2. The bottom member 3 may be configured to be flexibly deformed.

As shown in fig. 4C, the bottom member 4 may be made of a molded product such as resin, metal (e.g., aluminum), wood, paper, or ceramic. In this case, although the shape of the bottom member 4 is not particularly limited, the bottom member may have a central portion 4c that is bent upward of the installation surface, in addition to the installation portion 4a that can be brought into contact with the installation surface and the peripheral portion 4b joined to the bottom joining portion 2 c. The bottom member 4 may be configured to be hard and inflexible, or may be configured to be flexibly deformed.

The cylindrical member 2 is preferably composed of a first laminate having a total thickness of 50 to 600 μm. The total thickness of the first laminate is more preferably 100 to 500 μm. The cylindrical member 2 is preferably formed of a flexible laminate of three or more layers including a barrier layer and a resin layer. The cylindrical member 2 can be configured as follows: for example, a flat first laminate having a length corresponding to the outer periphery is formed into a tubular shape, and different surfaces (an inner surface at one end and an outer surface at the other end) in the thickness direction are joined to face each other at both ends in the circumferential direction (envelope adhesion), or the inner surfaces are joined to face each other by projecting both ends in the circumferential direction radially outward (half-fold adhesion), or the laminate is molded into a tubular shape having no seam in the circumferential direction. In the case of envelope sticking or half-closing 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, and 31 or the bottom member 4 is hard and has no flexibility, the durability of the joint portion may be reduced if the difference in strength between the annular members and the tubular member 2 is large, and therefore the tubular member 2 is preferably a member having toughness and being hard to deform. In this case, it is also preferable that the cylindrical member 2 can be bent or crushed from the viewpoint of disposability. When the

annular members

11, 21, 31 or the

bottom surface members

3, 4 are flexibly deformed, the tubular member 2 has flexibility, and is preferably a member having high flexibility such as being easily bent or crushed.

The cylindrical member 2 is, for example, cylindrical, and the outer diameter of the cylindrical member 2 is 30 to 150 mm. The tubular member 2 may be a prismatic tube, such as a triangular tube, a rectangular tube, or a pentagonal tube, or an elliptical tube. The outer diameter when the tubular member 2 is in the shape of a prism is a distance between vertices, a distance between sides, or a distance between vertices and sides that face each other, and when two or more of these are present, the minimum value and the maximum value are preferably within the above ranges. Specific examples of the outer diameter of the cylindrical member 2 are not particularly limited, and examples thereof include 30mm, 50mm, 100mm, and 150 mm.

The first laminate constituting the cylindrical member 2 can be constituted by, for example, a laminate including an inner side seal layer having a resin layer, a barrier layer having an aluminum foil or an aluminum vapor deposition layer, and an outer side seal layer having a resin layer. The barrier layer of the first laminate may be formed of an aluminum vapor-deposited base film. The first laminate may be formed of three or more layers each having at least one resin layer on both sides in the thickness direction of the aluminum foil. The thickness of the aluminum foil included in the first laminate may be smaller than the thickness of the aluminum foil included in the bottom member 3, and is, for example, 6 μm or more. The thickness of the aluminum deposition film included in the aluminum deposition base film may be smaller than the thickness of the aluminum foil.

The bottom member 3 may be a second laminate having a total thickness of 70 to 350 μm. The second laminate may be composed of, for example, three or more layers each having at least one resin layer on each of both sides in the thickness direction of an aluminum foil having a thickness of 40 μm or more. The second laminate can be formed of, for example, a laminate including a sealing layer having a resin layer, a barrier layer having an aluminum foil, and a base material layer having a resin layer. The second laminate may be a base film laminate which is planar in an expanded state, or may be a laminated molded body having a three-dimensional molded portion. The outer diameter of the bottom member 3 is preferably substantially equal to a dimension (hereinafter referred to as "set dimension a") obtained by subtracting 2 times the total thickness of the first laminate constituting the tubular member 2 from the outer diameter of the tubular member 2. That is, the outer diameter of the bottom member 3 is preferably substantially equal to the inner diameter of the cylindrical member 2. The outer diameter of the bottom member 3 is preferably in the range of 90% to 110%, more preferably 95% to 105% of the set dimension a.

By configuring the first laminate and the second laminate in the above range, the container body 1 can be folded, crushed, or arranged in a small size when the

containers

10, 20, and 30 are discarded while ensuring the flexibility of the container body 1. Further, even if the structure of the bottom surface joining portion 2c is not complicated, the self-standing property of the container 10 can be ensured by the thickness of the aluminum foil included in the second laminate. The upper limit of the thickness of the aluminum foil included in the second laminate is not particularly limited, and may be, for example, 200 μm or less. Specific examples of the thickness of the aluminum foil included in the second laminate include 40 μm, 50 μm, 70 μm, 80 μm, 100 μm, 120 μm, 150 μm, 180 μm, 200 μm, and values in the middle or vicinity thereof. Since the peripheral edge portion 3b of the bottom member 3 or the cylindrical member 2 has a cylindrical shape having a central axis in the vertical direction, rigidity that can withstand the load of the contents can be obtained by sufficiently securing the thickness of the layered body. The use of the resin layer in the structure of the first laminate and the second laminate can improve puncture resistance.

In the first laminate and the second laminate, examples of the material constituting the sealing layer include thermoplastic resins. Specific examples of the sealing material include at least one of polyolefin resins such as Polyethylene (PE) and polypropylene (PP), polyester resins such as polyethylene terephthalate (PET), cycloolefin resins such as cycloolefin polymer (COP) and cycloolefin copolymer (COC), adhesive resins, and coating agents.

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

The properties of the contents contained in the container body 1 include any properties such as liquid, solid, powder, granules, and a mixture of two or more of them. The type of the content is not particularly limited, and examples thereof include beverages, foods, seasonings, cosmetics, pharmaceuticals, detergents, adhesives, household products, industrial products, and the like. One or more of oxygen absorbing function, odor absorbing function, non-adsorbing function, and the like may be added to each member constituting the container. The tubular member 2 and the

bottom surface members

3 and 4 may have at least one print pattern. The members constituting the container body 1 are not limited to resin, and various materials such as paper, cloth, nonwoven fabric, and fiber may be laminated or bonded.

Paper may be visually placed on the outer surface of the

container

10, 20, 30, or natural appearance such as wood grain and stone grain may be applied thereto. When the paper material is disposed on the outer surface, the paper material is preferably covered with a water-resistant material such as a resin in order to suppress moisture absorption of the paper material. The first laminate and the second laminate are composed of three layers of polyethylene/aluminum/polyethylene, and four layers of polyethylene/paper/aluminum/polyethylene (the paper layer is located outside the aluminum layer). An appropriate resin layer and/or adhesive layer may be added to any of these portions. Since the

containers

10, 20, and 30 are wide-mouthed containers having self-standing properties, the contents can be easily taken out even when a viscous substance such as cream or wax is filled therein. By joining the

annular members

11, 21, and 31 to the tubular member 2, the tank can be configured even if the tubular member 2 is flexible.

Next, a structure in which the

annular members

11, 21, and 31 are joined to the tubular member 2 will be described. The

annular members

11, 21, 31 can be made of a material including, for example, a thermoplastic resin. Examples of the method of molding the

annular members

11, 21, and 31 include injection molding, compression molding, blow molding, extrusion molding, air compression molding, and drawing. Examples of the method of joining the

annular members

11, 21, and 31 to the cylindrical member 2 include thermal welding, adhesion, and hot melting. The

annular members

11, 21, 31 can also be joined to the tubular member 2 by insert molding the

annular members

11, 21, 31 to the tubular member 2.

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

As shown in fig. 6, the annular member 44 may have a projection 44a on at least one position of the outer periphery of the opening 2a of the tubular member 2, which sandwiches the upper end 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 at a position other than the position having the projection 44 a. The protrusion 44a may have a groove 44b into which the upper end of the tubular member 2 is inserted. As shown in fig. 7, the annular member 45 may have a joint portion 45a to the upper end portion of the tubular member 2, and a lip portion 45b extending upward from the joint portion 45 a.

The joining of the cylindrical member 2 and the

annular members

41, 42, 43, 44, and 45 can be performed by sandwiching the two members with a jig (not shown) or the like and applying heat, ultrasonic waves, or the like. When the cylindrical member 2 is joined to the

annular members

41, 42, 43, 44, and 45, the

bottom members

3 and 4 may be joined to the cylindrical member 2. Alternatively, the

bottom surface members

3 and 4 may be joined to the tubular member 2 after joining the tubular member 2 to the

annular members

41, 42, 43, 44, and 45. The width (dimension in the direction intersecting the circumferential direction) of the welded portion 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 preferably, for example, about 5mm or about 3 to 20 mm. The welded portions between the

annular members

41, 42, 43, 44, 45 and the tubular member 2 may be circumferentially continuous welded portions, or may be formed in a spot shape, a line shape, or the like having a shorter circumference at appropriate intervals in the circumferential direction. The thickness of the

annular members

41, 42, 43, 44, 45 at the portions where the cylindrical member 2 and the

annular members

41, 42, 43, 44, 45 are joined is preferably, for example, about 0.4 to 20 mm. The configuration 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.

As shown in fig. 7, when the inner diameter of the lip 45b of the annular member 45 is considerably smaller than the inner diameter of the tubular member 2, the tubular member 2 may be joined to the annular member 45 before the

bottom members

3 and 4 are joined to the tubular member 2. This allows the joining jig to be inserted into the housing portion 2b from the bottom surface side of the tubular member 2 and to approach the joining portion 45 a. When the outer surface of the edge 45b of the annular member 45 is curved radially inward of the outer surface of the joint 45a, the height H of the joint 45a in the vertical direction is preferably about 5mm or about 3 to 15mm, and more preferably about 5 to 12mm, for example. In the intermediate region 45c between the joint portion 45a and the lip portion 45b, there may be a portion thinner than the joint portion 45a or the lip portion 45 b. The thickness of the intermediate region 45c may be, for example, about 1 mm. The joining portion 45a of the annular member 45 may be configured to gradually decrease in thickness toward the joined lower end portion. The joint surface between the joint portion 45a and the tubular member 2 may be a joint of a curved surface, a hemispherical surface, or the like, as well as a joint of a plane surface, a cylindrical surface, or the like. When the joint surface is curved, the joint surface may be curved in any direction such as the vertical direction and the circumferential direction, and the welded portion may be curved along the width of the tubular member 2 and become larger than the height H of the joint portion 45 a.

Although the present invention has been described above based on preferred embodiments, the present invention is not limited to the above embodiments, and various modifications can be made within the scope not departing from the gist of the present invention. The modifications include additions, substitutions, omissions, and other modifications of the components in the embodiments. Further, the constituent elements used in two or more embodiments may be appropriately combined.

Industrial applicability

The self-standing packaging container of the present invention can ensure both strength and disposability even if it is formed in a wide mouth.

Claims

1. A container, comprising:

a container body having an opening at an upper end of a cylindrical member;

an annular member that is joined to an upper end portion of the cylindrical member; and

a lid member that closes the opening portion so as to be openable and closable,

the container body has a bottom surface member that is joined to the tubular member at a bottom surface portion of the tubular member,

the tubular member is composed of a flexible laminate of three or more layers including a sealing layer,

the lid member is coupled to the annular member so as to be openable and closable by any one of a hinge, fitting, and a screw.

2. The container according to claim 1,

the lid member and the annular member are connected by a hinge.

3. Container according to claim 1 or 2,

the container is a can container.

4. The container according to any one of claims 1 to 3,

the cylindrical member is formed of a first laminate having a total thickness of 100 to 500 μm, and has an outer diameter of 30 to 150 mm.

5. The container according to any one of claims 1 to 4,

the bottom member is formed of a second laminate having a total thickness of 70 to 350 [ mu ] m, and the second laminate is a laminate having at least three layers each including at least one resin layer on each of both sides in the thickness direction of an aluminum foil having a thickness of 40 [ mu ] m or more.

6. The container according to any one of claims 1 to 5,

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 cylindrical member.

7. The container according to any one of claims 1 to 4,

the bottom member is formed of a resin molded article or an aluminum molded article.

8. The container according to any one of claims 1 to 7,

the cover member is formed of a resin molded article or an aluminum molded article.