JP2022140851A - packaging container - Google Patents

Abstract

To fully mechanize a work of covering and joining a lid body after storing eggs in an egg container for covering and joining the lid body after storing the eggs in a container body.SOLUTION: There is provided an egg container composed of a container body 1 formed by arranging and forming a plurality of accommodation recesses 10 having an outer peripheral edge that is substantially square when viewed from above; and a top plate portion 20 having a substantially square shape when viewed from top and side walls 25 hanging down from the outer peripheral edge of the top plate portion 20; and a lid body 2 having a lower edge 23 of one side wall connected to one edge 13 of the container body 1 so as to be openable and closable with respect to the container body 1. The container body 1 and the lid body 2 each have a plurality of protruding pieces 12 and 22 that protrude outward from edges 11 and 21 opposite to a connecting portion 30. The container-side protruding piece 12 and the lid-side protruding piece 22 form an alternate positional relationship in a direction along the edges 11 and 21 when a lid is closed, and have the same height in a height direction.SELECTED DRAWING: Figure 1

Description

TECHNICAL FIELD The present invention relates to a packaging container for chicken eggs and the like. Specifically, it consists of a container body and a lid body, both are connected at one edge, the connecting part forms a hinge, and the other edge is joined along the edge with an adhesive tape. It relates to packaging containers.

Japanese Patent Application Laid-Open No. 2010-195400 (Patent Document 1) discloses a container body made of pulp mold and a lid body made of synthetic resin, and by covering the container body with the lid body, both long edges of both are overlapped and adhered to each other. An egg container adapted to be joined with tape is disclosed.
Japanese Patent Laying-Open No. 2013-233935 (Patent Document 2) discloses that one long edge of a pulp molded container body and a lid body is connected to form a hinge portion, and the other long edge of the container body is extended. An egg container is disclosed in which the protruding portion of the receiving plate is fitted into the engagement hole of the side wall of the lid to be locked.

Japanese Patent Application Laid-Open No. 2010-195400 JP 2013-233935 A

In the egg container of Patent Document 1, the container main body (made of pulp mold) and the lid body (made of synthetic resin) are separate bodies, so that a device is devised to position them with high accuracy. However, since the degree of warpage differs between the pulp mold and the synthetic resin, it is difficult to bring the long edges of the two into close contact with each other before the adhesive tape is adhered, requiring time and effort.

Since the egg container of Patent Document 2 is made of pulp mold in which the container body and the lid are integrated via a hinge, positioning is easy. However, it is necessary to manually engage the protruding portion of the receiving plate on the container body side into the engaging hole of the side wall of the lid to lock it, which cannot be mechanized and requires extra man-hours.

In other words, in the egg containers of Patent Documents 1 and 2, the operation of covering the container body with the lid after the eggs are accommodated cannot be completely mechanized and requires some manual labor.
The present invention relates to a packaging container (such as an egg container) in which a lid is placed and joined after the contents are accommodated in the container body, and the work of covering and joining the contents (egg, eggs) after accommodating the contents (egg) is facilitated. Desirably, the object is to enable complete mechanization.

The configuration of the present invention is described in [1] to [6] below. In this section ([Means for Solving the Problems]) and the next section ([Effects of the Invention]), the reference numerals are attached to facilitate understanding, and the present invention is It is not intended to be limiting.

[1] Invention 1
a container body 1 having an outer peripheral edge that forms a substantially square shape when viewed from the top and formed by arranging a plurality of accommodation recesses 10;
An inverted container shape is formed by a top plate portion 20 that is substantially square in top view and a side wall 25 that hangs down from the outer peripheral edge of the top plate portion 20 . 13, and the lid 2 can be opened and closed with respect to the container body 1 by using the connecting portion as a hinge 30;
A packaging container having
The container main body 1 and the lid 2 each have a plurality of protruding pieces 12 and 22 protruding outward from the edges 11 and 21 opposite to the connecting portion 30, and the container side protruding piece 12 and the lid side When the lid is closed, the protruding pieces 22 form an alternate positional relationship in the direction along the relevant edges 11 and 21, and have the same height in the height direction.
A packaging container characterized by:
[2] Invention 2
In invention 1,
The container-side protruding piece 12 and the lid-side protruding piece 22, which are adjacent to each other in the alternating positional relationship, are separated from each other on the protruding piece tip end portions 121 and 221 when the lid is closed.
A packaging container characterized by:
[3] Invention 3
In invention 2,
The container-side protruding piece 12 and the lid-side protruding piece 22, which are adjacent to each other in the alternating positional relationship, substantially contact at the protruding piece base portions 120 and 220 when the lid is closed.
A packaging container characterized by:
[4] Invention 4
In invention 1,
The container-side protruding piece and the lid-side protruding piece, which are adjacent in the alternate positional relationship, are separated on the tip side of the protruding piece when the lid is closed, and are also separated on the base of the protruding piece.
A packaging container characterized by:
[5] Invention 5
In any of Inventions 1 to 4,
The container-side protruding piece 12 is formed such that its root portion 120 is higher than the edge 11 of the container body 1 by an amount equivalent to the thickness of the protruding piece 12.
A packaging container characterized by:
[6] Invention 6
In any of Inventions 1 to 5,
The container body 1 has edge projections 15 at both ends of the edge 11 on which the projecting pieces 12 are provided, which are fitted into the inverted container-shaped lid body 2 when the lid is closed.
A packaging container characterized by:

Invention 1 comprises a container body 1 having an outer peripheral edge forming a substantially square shape when viewed from the top and formed by arranging a plurality of accommodation recesses 10, a top plate portion 20 having a substantially square shape when viewed from the top, and the outer peripheral edge of the top plate portion 20. The bottom edge 23 of one side wall is connected to one edge 13 of the container body 1, and the connected portion is used as a hinge 30 to attach to the container body 1. The container main body 1 and the lid 2 protrude outward from the edges 11 and 21 opposite to the connecting portion 30, respectively. It has a plurality of protruding pieces 12 and 22, and when the lid is closed, the container side protruding piece 12 and the lid body side protruding piece 22 form an alternate positional relationship in the direction along the relevant edges 11 and 21, and in the height direction. Since the packaging container has the same height, the container-side protruding piece 12 and the lid-side protruding piece 22 can be adhered with the adhesive tape without rattling when the lid is closed.
Invention 2 is for packaging wherein, in invention 1, container-side protruding piece 12 and lid-side protruding piece 22, which are adjacent in the alternate positional relationship, are separated on the tip end portions 121 and 221 of the protruding piece when the lid is closed. Since it is a container, the adhesive tape sticks to each other on the tip end side of the protruding piece, so there is an effect that the adhesive force becomes strong.
Invention 3 is packaging according to Invention 2, wherein the container-side protruding piece 12 and the lid-side protruding piece 22, which are adjacent to each other in the alternating positional relationship, substantially contact at the base portions 120 and 220 of the protruding pieces when the lid is closed. Since it is a container, the container-side protruding piece 12 and the lid-side protruding piece 22 that are adjacent to each other come into contact with each other so as to fit in at the root portion, and furthermore, there is an effect that rattling can be prevented.
Invention 4 is the invention 1, wherein the container-side protruding piece and the lid-side protruding piece, which are adjacent in the alternate positional relationship, are separated on the tip side of the protruding piece when the lid is closed, and the base of the protruding piece is separated. Also, since it is a packaging container that is spaced apart, the area where the adhesive tapes adhere to each other is large, and there is an effect that the adhesive force is very large.
Invention 5 is the container-side projecting piece 12 according to any one of Inventions 1 to 4, wherein the root portion 120 of the container-side projecting piece 12 is formed higher than the edge 11 of the container body 1 by an amount equivalent to the thickness of the projecting piece 12. Since it is a packaging container that is flat, it is possible to provide a specific example of a structure that achieves the same height in the height direction.
Invention 6 is the invention according to any one of Inventions 1 to 5, wherein the container body 1 is fitted into the inverted container-shaped lid body 2 at both ends of the edge 11 provided with the projecting pieces 12 when the lid is closed. Since the packaging container has the edge projecting portion 15, it is possible to further prevent the container body 1 and the lid body 2 from rattling when the lid is closed due to fitting.

FIG. 2 is a perspective view of the egg container of the embodiment with the lid open. FIG. 2 is a perspective view of the egg container of FIG. 1 turned upside down; (a) is a side view of the egg container of FIG. 1 viewed from the upper right to the lower left in FIG. Fig. 1c) is a side view of the egg container of Fig. 1 viewed from the lower left to the upper right in Fig. 1; FIG. 2 is a perspective view of the egg container of the embodiment with the lid closed, where (a) shows the side where projecting pieces 12 and 22 can be seen, and (b) shows the side where the connecting portion 30 can be seen. Fig. 4(a) shows a state in which the egg container of the embodiment is joined with an adhesive tape with the lid closed, and (a) is a perspective view of FIG. Enlarged view of the vicinity of the left end viewed from below. (a) is an enlarged side view of the egg container of FIG. 5 (a) viewed from the lower right to the upper left in FIG. 5 (a); Enlarged front view of the vicinity of the upper left end (the vicinity erased in the figure) viewed from the lower left to the upper right in the figure.

An embodiment of the present invention will be described with reference to the drawings.
The illustrated packaging container is a molded pulp product having storage recesses 10 for storing 2×5=10 chicken eggs, and has a container body 1 and a lid 2 . The pulp molded product is obtained by immersing a mold provided with a wire mesh having a shape corresponding to the container body 1 and the lid body 2 in a pulp solution obtained by dissolving waste paper or the like in water, and sucking from the back and adhering to the wire mesh. After drying, it is taken out and dried. Since the pulp molding method is well known, the details of the manufacturing method are omitted. In this embodiment, the outer surfaces of the container body 1 and the lid 2 are the sides (smooth surfaces) that are attracted to the wire mesh, and the inner surfaces of the container body 1 and the lid 2 are the sides that are exposed to the free space (rough surfaces). surface).

The container body 1 is a tray that has a substantially rectangular shape (R-rectangular shape with curved corners) when viewed from above, and has a three-dimensional overall shape of a recess. In this tray, a plurality of storage recesses 10 (2×5=10 in this example) are arranged in a lattice pattern of 5 in 2 rows. That is, they are arranged so that the center of the accommodation recess 10 is positioned at each of the lattice point positions. These storage recesses 10 are for storing an oblong spherical hen's egg in an upright position. In addition, an in-container projecting portion 14 is erected from the center position of the four housing recesses 10 arranged in a square shape when viewed from above. The height is set so that the upper end abuts against the inner surface of the top plate portion 20 of the lid body 2 to support the lid body 2 when the lid is closed. A through hole is formed at the upper end of the protruding portion 14 in the container, and this is provided to shorten the drying process in the production of the egg container and to suppress distortion in the drying process. It is a thing.

A horizontal outer peripheral edge is provided around the entire circumference of the tray opening of the container body 1 . One of the two parallel long edges (the long edge 13 of the container body 1 and the long edge 23 of the lid 2) forming a part of the outer peripheral edge is connected to each other, and the connecting portion 30 is a hinge. function as Further, from the other of the two long edges (the long edge 11 of the container body 1 and the long edge 21 of the lid 2), a plurality of plate-like projecting pieces (the container side projecting piece 12 and the lid side projecting piece 22) are respectively projected. are horizontally extending outward at equal intervals in the edge direction.

These plurality of container-side projecting pieces 12 (five pieces in the illustrated example) and the plurality of lid-side projecting pieces 22 (six pieces in the illustrated example, two pieces at both ends being narrower than the four pieces at the inner side position) are As shown in FIG. 4(a), they are arranged in a row in an alternate positional relationship in the direction along the edges 11 and 21 when the lid is closed.

Of the container-side projecting pieces 12 and the lid-side projecting pieces 22 that are in this alternate positional relationship, the base portions 120 and 220 of the container-side projecting pieces 12 and the lid-side projecting pieces 22 that are in the adjacent positional relationship are In this case, they are shaped to contact each other so as to be fitted into each other. Therefore, when the lid body 2 is put on the container body 1, the two are naturally fitted to each other, and rattling is suppressed.

Moreover, the container-side protruding piece 12 and the lid-side protruding piece 22 form a shape that narrows toward their tip portions 121 and 221 . For this reason, the container-side projecting piece 12 and the lid body-side projecting piece 22 that are adjacent to each other are separated from each other on the tip end portions 121 and 221 sides thereof. For this reason, when the lid 2 is placed on the container body 1 and the portions of the container-side projecting piece 12 and the lid-side projecting piece 22 are adhered with an adhesive tape 50 as shown in FIG. The adhesive surfaces of 50 come into contact with each other and adhere to each other, resulting in strong adhesion.

Further, the container-side protruding piece 12 is formed to be higher than the long edge 11 by the thickness at the portion where the protruding piece 12 protrudes from the edge 11 (see FIG. 3(b)). That is, a stepped portion corresponding to the thickness is formed at the projecting portion. On the other hand, the lid-side protruding piece 22 does not have a stepped portion where the protruding piece 22 protrudes from the edge 21 , and the lid-side protruding piece 22 protrudes outward from the same height as the edge 21 . (See FIG. 3(d)).

Therefore, when the lid 2 is put on the container body 1, the container-side protruding piece 12 and the lid-side protruding piece 22 have the same height as shown in FIGS. 6(a) and 6(b). That is, the container-side protruding piece 12 and the lid-side protruding piece 22, which are arranged alternately in the direction along the edge, have the same height, and there is no step (unevenness) between them. For this reason, it is difficult to cause blurring or the like during the work of joining with the adhesive tape 50 (see FIG. 5A), and mechanization using a predetermined mechanical device can be favorably realized.

In the figure, reference numeral 15 denotes edge protrusions provided at both ends of the edge 11 of the container body 1, and when the lid body 2 in the shape of an inverted container is put on the container body 1 and closed, the inside of the inverted container shape The function of guiding and positioning the lid body 2 is exhibited by being fitted into the lid body 2 .
Although the egg container containing 10 eggs (5×2) has been described above, the same applies to container containing 4 eggs, 6 eggs, 8 eggs, 12 eggs, and the like.
In addition, the present invention can be applied not only to chicken egg containers, but also to packaging containers having the same edge structure.

In the above description, the plurality of container-side projecting pieces 12 and the plurality of lid-side projecting pieces 22 are arranged alternately in the direction along the edges 11 and 21 when the lid is closed, as shown in FIG. Although they are provided in a continuous positional relationship, they may alternatively be provided in an alternate positional relationship and spaced apart. By doing so, when the adhesive tape is sealed, the area of contact and adhesion between the adhesive surfaces of the adhesive tape increases, so that the adhesive force can be made very strong.

In addition, the container-side protruding piece 12 and the lid-side protruding piece 22 are not in an alternating positional relationship, but, for example, one protruding piece (container-side protruding piece 12 / lid-side protruding piece 22) is arranged in succession, The other protruding piece (cover-side protruding piece 22/container-side protruding piece 12) is arranged between the following two pieces (disposed in contact at the base/distributed apart from the base). It may be configured as In other words, the arrangement of the container-side protruding piece 12 and the lid-side protruding piece 22 may be appropriately changed in consideration of various circumstances such as adhesion work.

1 container main body 10 housing recess 11 edge (edge on the projecting side of the container main body)
12 protruding piece (container side protruding piece)
120 protruding piece base portion 121 protruding piece tip portion 13 edge (edge on the continuous side of the container body)
14 In-container projecting portion 15 Edge projecting portion (projecting portion at both edges)
2 Lid 20 Top plate portion 21 Edge (edge of protruding side of lid)
22 protruding piece (cover side protruding piece)
220 protruding piece base portion 221 protruding piece tip portion 23 edge (edge on the continuous side of the lid body)
25 side wall 30 connecting portion (hinge)
50 adhesive tape

Claims (6)

a container body having an outer peripheral edge that forms a substantially square shape when viewed from the top and formed by arranging a plurality of accommodation recesses;
It has an inverted container shape composed of a top plate portion that is substantially square in top view and a side wall that hangs down from the outer peripheral edge of the top plate portion, and the lower edge of one side wall is connected to one edge of the container body, a lid that can be opened and closed with respect to the container body using the connecting portion as a hinge;
A packaging container having
The container body and the lid each have a plurality of protruding pieces that protrude outward from the edges opposite to the connecting portion, and the container-side protruding pieces and the lid-side protruding pieces are attached to the edges when the lid is closed. Alternating positional relationship in the direction along and equal height in the direction of height,
A packaging container characterized by: In claim 1,
The container-side protruding piece and the lid-side protruding piece that are adjacent in the alternating positional relationship are separated from each other on the tip side of the protruding piece when the lid is closed.
A packaging container characterized by: In claim 2,
The container-side protruding piece and the lid-side protruding piece, which are adjacent to each other in the alternating positional relationship, substantially contact each other at the base of the protruding piece when the lid is closed.
A packaging container characterized by: In claim 1,
The container-side protruding piece and the lid-side protruding piece, which are adjacent to each other in the alternate positional relationship, are separated on the tip side of the protruding piece when the lid is closed, and are also separated on the base of the protruding piece.
A packaging container characterized by: In any one of claims 1 to 4,
The container-side protruding piece has a root portion that is higher than the edge of the container body by an amount corresponding to the thickness of the protruding piece,
A packaging container characterized by: In any one of claims 1 to 5,
The container body has edge projections at both ends of the edge where the projecting pieces are provided, which are fitted into the inverted container-shaped lid body when the lid is closed,
A packaging container characterized by:

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