container

Abstract

We provide containers that are easy to manufacture and have flat tops and bottoms, commonly known as flat containers. [Solution] A container comprising a side circumferential wall portion 11 constituting a cylindrical portion and a covering portion 21 covering the top opening of the cylindrical portion, wherein the covering portion 21 comprises a full-covering portion 31 that covers the entire top opening and support covering portions 32, 33, 34 that support the full-covering portion 31 from the inside of the cylindrical portion, and both the full-covering portion 31 and the support covering portions 32, 33, 34 extend from the side circumferential wall portion 11, the support covering portions 32, 33, 34 partially cover the top opening, and the support covering portions 32, 33, 34 and the full-covering portion 31 are surface-bonded to each other, making the container easy to assemble and aesthetically pleasing.

Description

Technical Field

[0001] This invention mainly relates to a container with a flat top or bottom surface.

Background Art

[0002] Conventionally, when covering the openings at the top or bottom, for example, like the container disclosed in Patent Document 1, it was common to apply a flat plate to the curled side peripheral surface and bond them.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the conventional containers as described above, mechanical equipment such as frame pasting, curling, and pad gluing is required, and there are limitations in production capacity during peak seasons and concerns about delivery times.

[0005] Moreover, a so-called flat can without curling requires a certain plate thickness for the top and bottom plates. For example, there is a problem that lamination with chipboard is required. When using paper laminated in this way, there is also a problem that the paper warps due to drying.

[0006] Furthermore, when using different papers for the side peripheral surface, top plate, and bottom plate, separate printing processes and Thomson using wooden molds are required, and there is also a problem that the material cost increases.

[0007] And during assembly, only partial bonding is achieved, making it weak against vertical pressure and prone to defective products.

[0008] The purpose of this invention is to provide a container that is easy to manufacture and has a flat top and bottom, commonly known as a flat container. [Means for solving the problem]

[0009] The present invention relates to a container comprising a side circumferential wall portion constituting a cylindrical portion and a covering portion covering the opening of the cylindrical portion, wherein the covering portion comprises a plate-shaped full-area covering portion that covers the entire area of ​​the opening and has one side exposed to the outside, and a plate-shaped shielding covering portion that covers the entire area of ​​the opening and is disposed on the other side of the full-area covering portion, wherein an inlet groove portion filled with adhesive that bonds the outer circumferential edge of the shielding covering portion to the inner circumferential surface of the side circumferential wall portion is formed through the plate thickness direction on the outer circumferential edge of the shielding covering portion, and the full-area covering portion and the shielding covering portion are surface-bonded via the adhesive in the inlet groove portion, and the full-area covering portion and the shielding covering portion are bonded to the side circumferential wall portion.

[0010] Furthermore, the present invention is a container comprising a side circumferential wall portion constituting a cylindrical portion and a covering portion that covers the opening of the cylindrical portion, wherein the covering portion comprises a plate-shaped full-coverage portion that covers the entire area of ​​the opening and has one side exposed to the outside, and a plate-shaped support covering portion disposed on the other side of the full-coverage portion and supporting the full-coverage portion from the inside of the cylindrical portion, wherein both the full-coverage portion and the support covering portion extend from the side circumferential wall portion, the support covering portion partially covers the opening, and the support covering portion and the full-coverage portion are surface-bonded to each other.

[0011] In the above invention, an inflow groove is formed in the thickness direction of the plate on the outer edge of the support covering portion, and is filled with an adhesive that bonds the outer edge of the support covering portion to the inner surface of the side wall portion. The entire covering portion and the support covering portion may be surface-bonded via the adhesive in the inflow groove.

[0012] In this configuration, the container can be assembled manually without the need for mechanical equipment. That is, by surface bonding the support covering portion and the overall covering portion, the side periphery wall portion automatically comes into contact with the outer edge of the covering portion, thus eliminating the need for precise mechanical equipment.

[0013] Furthermore, even if the thickness of the overall covering portion is thin, the double-layered structure with the shielding covering portion allows for a robust container. In addition, when using adhesive in the container manufacturing process, the shielding covering portion and the side walls, and the shielding covering portion and the overall covering portion can be bonded simply by pouring the adhesive into the inlet groove, leading to a shortened manufacturing process.

[0014] Furthermore, if multiple support covering portions are provided, and each support covering portion partially covers a different area of ​​the opening, an improvement in the support effect of the support covering portion can be expected. In addition, unevenness in support strength can be eliminated.

[0015] Furthermore, when the edges of adjacent support coverings are in contact with each other, the rigidity is improved, resulting in better stability as a container. In addition, the support coverings act as guides when rounding the side walls, making assembly easier. This is particularly noticeable for containers with a circular or elliptical cross-section.

[0016] Furthermore, if the outer edge of the entire covering portion is abutted against the inner surface of the side wall portion, an aesthetically pleasing container can be made.

[0017] Furthermore, if a shielding covering portion is attached to the inside of the cylindrical portion, even further inside the support covering portion, to cover the support covering portion and make it invisible, then the support covering portion can be made invisible, resulting in a more aesthetically pleasing container. [Effects of the Invention]

[0018] The container according to this invention has the excellent advantages of being easy to manufacture and having a good appearance. [Brief explanation of the drawing]

[0019] [Figure 1] It is a plan view of a blank in the container according to Example 1. [Figure 2] It is an explanatory view showing a state of assembling the lid portion. [Figure 3] It is a perspective view of the container. [Figure 4] It is an explanatory view of the lid portion according to Example 2. [Figure 5] It is an explanatory view of the lid portion according to Example 3. [Figure 6] It is an explanatory view of the lid portion according to Example 4. [Figure 7] It is an explanatory view of the lid portion. [Figure 8] It is a partial enlarged longitudinal sectional view of the two-dot chain line portion in FIG. 7.

Mode for Carrying Out the Invention

[0020] Hereinafter, embodiments embodying the present invention will be described in detail. Note that the present invention is not limited to the embodiments shown below, and design changes can be made as appropriate.

[0021] 〔Example 1〕 The lid portion 2 of the container 1 (see FIG. 3) is formed by folding a single paper blank 10. The blank 10 is made of a plate-shaped paper material having a side wall portion 11 constituting a cylindrical portion 12 and a covering portion 21 covering a top opening 15 which is an opening of the cylindrical portion, as shown in FIG. 1.

[0022] As shown in FIG. 2, the covering portion 21 includes an entire area covering portion 31 covering the entire area of the top opening 15 and support covering portions 32, 33, 34 that support the entire area covering portion 31 from the inside of the side wall portion 11.

[0023] Note that both the entire area covering portion 31 and the support covering portions 32, 33, 34 extend from the side wall portion 11.

[0024] And the support covering portions 32, 33, 34 individually cover the top opening 15 partially.

[0025] Here, there are multiple support covering sections 32, 33, and 34, which further partially cover different areas in the top opening 15.

[0026] When forming the lid portion 2 from such a blank 10, as shown in Figure 2, the side peripheral wall portion 11 is wound around to form the cylindrical portion 12, and the support covering portions 32, 33, and 34 are folded in to cover the top opening 15. At this time, by folding the adjacent support covering portions 32, 33, and 34 so that their edges come into contact with each other, the side peripheral wall portion 11 can be curved into a neat circle.

[0027] After folding in the support covering portions 32, 33, and 34, double-sided tape (not shown) or the like is attached to the upper surfaces of the support covering portions 32, 33, and 34 to attach the entire covering portion 31 to the upper surfaces of the support covering portions 32, 33, and 34. As a result, one side of the entire covering portion 31 is exposed to the outside, and the support covering portions 32, 33, and 34 are positioned on the other side of the entire covering portion 31, supporting the entire covering portion 31 from the inside of the cylindrical portion 12. In this way, the lid portion 2 is completed as shown in Figure 3. The main body portion 3 of the container 1 is done in the same way to create the container 1 which is a flat container.

[0028] Furthermore, the lid portion 2 can be made aesthetically pleasing by assembling it so that the outer edge of the entire covering portion 31 abuts against the inner surface of the side wall portion 11. Such a container 1 with a flat top and bottom is not only aesthetically pleasing, but can also be easily stacked, stacked stably, and is less likely to collapse.

[0029] Furthermore, by dividing the support covering parts 32, 33, and 34 into three and arranging them off-center on the blank 10, the upper right region S of the blank 10 can be made larger, as shown by the dashed line in Figure 1. This makes it easier to cut and allows for efficient use of the blank 10 without waste.

[0030] [Example 2] Furthermore, if the lid portion 2 is unsightly because the seams of the support covering portions 32, 33, and 34 are visible when viewed from the inside, the seams can be made invisible by further attaching a shielding covering portion 40 to the inside of the cylindrical portion to cover the support covering portions 32, 33, and 34 and make them invisible, as shown in Figure 4.

[0031] [Example 3] Furthermore, as shown in Figure 5, instead of the shielding covering portion 40 in Example 2, the lid portion 60 may be made using a shielding covering portion 50 in which an inflow groove portion 51 is formed at the outer peripheral edge and penetrates in the thickness direction of the plate. In this case, not only can the outer peripheral edge of the shielding covering portion 50 be bonded to the inner peripheral surface of the side peripheral wall portion 11 by pouring adhesive into the inflow groove portion 51, but the shielding covering portion 50 can also be bonded to the support covering portions 32, 33, and 34, thereby improving the strength of the lid portion 60.

[0032] [Example 4] Furthermore, as a lid portion 102 constituting the container, as shown in Figures 6 and 7, a lid portion 102 is proposed that comprises a side peripheral wall portion 111 constituting the cylindrical portion 112 and a covering portion 121 that covers the top opening 115 of the cylindrical portion. The covering portion 121 comprises a plate-shaped full-coverage portion 131 that covers the entire area of ​​the top opening 115 and has one side exposed to the outside, and a plate-shaped shielding covering portion 132 that covers the entire area of ​​the top opening 115 and is disposed on the other side of the full-coverage portion 131.

[0033] An inlet groove 151 is formed on the outer edge of the shielding covering portion 132, penetrating in the direction of the plate thickness.

[0034] As shown in Figure 8, by pouring adhesive G into the inlet groove 151, the lid portion 102 can not only bond the outer edge of the shielding covering portion 132 to the inner surface of the side wall portion 111, but also surface-bond the entire covering portion 131 to the shielding covering portion 132. Furthermore, the outer edge of the entire covering portion 131 can be bonded to the inner surface of the side wall portion 111. This shortens the work procedure and enables mass production. In addition, it is no longer necessary to make the entire covering portion 131 thick, as it can be made from thin cardboard, thus eliminating the need to introduce special machinery for printing on the outer surface of the lid portion 102, including the entire covering portion 131.

[0035] In the above embodiment, the dimensions and shapes of each part can be freely selected as appropriate. For example, the support covering parts 32, 33, and 34 do not necessarily have to be three; there may be two or four or more. The container shape can be suitably applied not only to circular cross-sections, but also to elliptical shapes, polygons with rounded corners, and others. Even containers with polygonal cross-sections are acceptable. [Explanation of symbols]

[0036] 1 container 2,60,102 Lid 3. Main body 10 Blank 11,111 Side peripheral wall 12 Cylinder part 15,115 Ceiling opening (opening) 21,121 Covering part 31,131 Full coverage area 32,33,34 Support cover part 40, 50, 132 Shielding covering 51,151 Inflow cylinder part G Adhesive S Upper right area

Claims

1. A container comprising a side circumferential wall portion that constitutes a cylindrical portion, and a covering portion that covers the opening of the cylindrical portion, The aforementioned covering portion is A plate-shaped full-coverage portion that covers the entire opening, with one side exposed to the outside, A plate-shaped shielding covering portion is provided on the other side of the portion that covers the entire opening, It is equipped with, An inlet groove is formed on the outer edge of the shielding covering portion, which is filled with adhesive to bond the outer edge of the shielding covering portion to the inner surface of the side wall portion, and it penetrates through the plate thickness direction. A container characterized in that the entire covering portion and the shielding covering portion are surface-bonded to each other via the adhesive in the inlet groove, and the entire covering portion and the shielding covering portion are bonded to the side peripheral wall.

2. A container comprising a side circumferential wall portion that constitutes a cylindrical portion, and a covering portion that covers the opening of the cylindrical portion, The aforementioned covering portion is A plate-shaped full-coverage portion that covers the entire opening, with one side exposed to the outside, A plate-shaped support covering portion is disposed on the other side of the aforementioned entire covering portion and supports the aforementioned entire covering portion from the inside of the cylindrical portion, It is equipped with, Both the overall covering portion and the support covering portion extend from the side peripheral wall portion. The aforementioned support covering portion is Partially covering the aforementioned opening, The support covering portion and the overall covering portion are surface-bonded to each other. A container characterized by the following features.

3. An inlet groove is formed on the outer periphery of the support covering portion, which is filled with adhesive to bond the outer periphery of the support covering portion to the inner surface of the side periphery wall portion, and it penetrates through the plate thickness direction. The container according to claim 2, wherein the entire covering portion and the support covering portion are surface-bonded to each other via the adhesive in the inlet groove.

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